From baae751ef69bcc2c205ec969dbd5788fe0ac26e8 Mon Sep 17 00:00:00 2001 From: Hans Hagen Date: Tue, 5 Feb 2013 13:35:00 +0100 Subject: beta 2013.02.05 13:35 --- tex/context/base/cont-new.mkii | 2 +- tex/context/base/cont-new.mkiv | 2 +- tex/context/base/context-version.pdf | Bin 4124 -> 4107 bytes tex/context/base/context-version.png | Bin 40232 -> 40160 bytes tex/context/base/context.mkii | 2 +- tex/context/base/context.mkiv | 2 +- tex/context/base/grph-inc.lua | 87 +- tex/context/base/l-os.lua | 12 +- tex/context/base/luat-env.lua | 234 +- tex/context/base/luat-lib.mkiv | 1 + tex/context/base/m-graph.mkiv | 22 +- tex/context/base/status-files.pdf | Bin 24744 -> 24719 bytes tex/context/base/status-lua.pdf | Bin 208557 -> 208685 bytes tex/context/base/strc-flt.mkvi | 8 +- tex/context/base/trac-lmx.lua | 9 +- tex/context/base/util-mrg.lua | 4 + tex/context/base/util-sql-tickets.lua | 2 - tex/context/base/util-sql.lua | 4 + tex/generic/context/luatex/luatex-basics-nod.lua | 9 + tex/generic/context/luatex/luatex-fonts-merged.lua | 22383 ++++++++----------- tex/generic/context/luatex/luatex-fonts.lua | 126 +- 21 files changed, 9775 insertions(+), 13134 deletions(-) (limited to 'tex') diff --git a/tex/context/base/cont-new.mkii b/tex/context/base/cont-new.mkii index 5a9ea173a..ad44564be 100644 --- a/tex/context/base/cont-new.mkii +++ b/tex/context/base/cont-new.mkii @@ -11,7 +11,7 @@ %C therefore copyrighted by \PRAGMA. See mreadme.pdf for %C details. -\newcontextversion{2013.01.31 22:47} +\newcontextversion{2013.02.05 13:35} %D This file is loaded at runtime, thereby providing an %D excellent place for hacks, patches, extensions and new diff --git a/tex/context/base/cont-new.mkiv b/tex/context/base/cont-new.mkiv index 8e7d04564..c91c44933 100644 --- a/tex/context/base/cont-new.mkiv +++ b/tex/context/base/cont-new.mkiv @@ -11,7 +11,7 @@ %C therefore copyrighted by \PRAGMA. See mreadme.pdf for %C details. -\newcontextversion{2013.01.31 22:47} +\newcontextversion{2013.02.05 13:35} %D This file is loaded at runtime, thereby providing an excellent place for %D hacks, patches, extensions and new features. diff --git a/tex/context/base/context-version.pdf b/tex/context/base/context-version.pdf index 1c49aea89..ee4931f5a 100644 Binary files a/tex/context/base/context-version.pdf and b/tex/context/base/context-version.pdf differ diff --git a/tex/context/base/context-version.png b/tex/context/base/context-version.png index c90a939dd..ba3ff464b 100644 Binary files a/tex/context/base/context-version.png and b/tex/context/base/context-version.png differ diff --git a/tex/context/base/context.mkii b/tex/context/base/context.mkii index 8a8aa70dc..62235cc1c 100644 --- a/tex/context/base/context.mkii +++ b/tex/context/base/context.mkii @@ -20,7 +20,7 @@ %D your styles an modules. \edef\contextformat {\jobname} -\edef\contextversion{2013.01.31 22:47} +\edef\contextversion{2013.02.05 13:35} %D For those who want to use this: diff --git a/tex/context/base/context.mkiv b/tex/context/base/context.mkiv index 8ad9f130e..64a146e60 100644 --- a/tex/context/base/context.mkiv +++ b/tex/context/base/context.mkiv @@ -25,7 +25,7 @@ %D up and the dependencies are more consistent. \edef\contextformat {\jobname} -\edef\contextversion{2013.01.31 22:47} +\edef\contextversion{2013.02.05 13:35} %D For those who want to use this: diff --git a/tex/context/base/grph-inc.lua b/tex/context/base/grph-inc.lua index fd282dac2..4006dfdbe 100644 --- a/tex/context/base/grph-inc.lua +++ b/tex/context/base/grph-inc.lua @@ -72,6 +72,14 @@ local context, img = context, img local f_hash_part = formatters["%s->%s->%s"] local f_hash_full = formatters["%s->%s->%s->%s->%s->%s->%s"] +local v_yes = variables.yes +local v_low = variables.low +local v_medium = variables.medium +local v_high = variables.high +local v_global = variables["global"] +local v_local = variables["local"] +local v_default = variables.default + local maxdimen = 2^30-1 function img.check(figure) @@ -322,18 +330,18 @@ function figures.setpaths(locationset,pathlist) -- this function can be called each graphic so we provide this optimization return end - local iv, t, h = interfaces.variables, figure_paths, settings_to_hash(locationset) + local t, h = figure_paths, settings_to_hash(locationset) if last_locationset ~= locationset then -- change == reset (actually, a 'reset' would indeed reset - if h[iv["local"]] then + if h[v_local] then t = table.fastcopy(figures.localpaths or { }) else t = { } end - figures.defaultsearch = h[iv["default"]] + figures.defaultsearch = h[v_default] last_locationset = locationset end - if h[iv["global"]] then + if h[v_global] then local list = settings_to_array(pathlist) for i=1,#list do local s = list[i] @@ -423,15 +431,14 @@ function figures.initialize(request) -- request.page = math.max(tonumber(request.page) or 1,1) request.size = img.checksize(request.size) - request.object = request.object == variables.yes - request["repeat"] = request["repeat"] == variables.yes - request.preview = request.preview == variables.yes + request.object = request.object == v_yes + request["repeat"] = request["repeat"] == v_yes + request.preview = request.preview == v_yes request.cache = request.cache ~= "" and request.cache request.prefix = request.prefix ~= "" and request.prefix request.format = request.format ~= "" and request.format table.merge(figuredata.request,request) end - -- inspect(figuredata) return figuredata end @@ -650,7 +657,7 @@ local function register(askedname,specification) return specification end -local resolve_too = true -- urls +local resolve_too = false -- true local function locate(request) -- name, format, cache -- not resolvers.cleanpath(request.name) as it fails on a!b.pdf and b~c.pdf @@ -661,28 +668,58 @@ local function locate(request) -- name, format, cache if foundname then return foundname end + -- + local askedcache = request.cache + local askedconversion = request.conversion + local askedresolution = request.resolution + -- + if request.format == "" or request.format == "unknown" then + request.format = nil + end -- protocol check local hashed = url.hashed(askedname) - if hashed then - if hashed.scheme == "file" then - local path = hashed.path - if path and path ~= "" then - askedname = path + if not hashed then + -- go on + elseif hashed.scheme == "file" then + local path = hashed.path + if path and path ~= "" then + askedname = path + end + else + local foundname = resolvers.findbinfile(askedname) + if not lfs.isfile(foundname) then -- foundname can be dummy + if trace_figures then + report_inclusion("strategy: unresolved url: %s",askedname) end + -- url not found + return register(askedname) + end + local askedformat = request.format or file.suffix(askedname) or "" + local guessedformat = figures.guess(foundname) + if askedformat ~= guessedformat then + if trace_figures then + report_inclusion("strategy: resolved url: %s, unknown format",askedname) + end + -- url found, but wrong format + return register(askedname) else - local foundname = resolvers.findbinfile(askedname) - if foundname then - askedname = foundname + if trace_figures then + report_inclusion("strategy: resolved url: %s -> %s",askedname,foundname) end + return register(askedname, { + askedname = askedname, + fullname = foundname, + format = askedformat, + cache = askedcache, + conversion = askedconversion, + resolution = askedresolution, + }) end end -- we could use the hashed data instead local askedpath= file.is_rootbased_path(askedname) local askedbase = file.basename(askedname) - local askedformat = request.format ~= "" and request.format ~= "unknown" and request.format or file.suffix(askedname) or "" - local askedcache = request.cache - local askedconversion = request.conversion - local askedresolution = request.resolution + local askedformat = request.format or file.suffix(askedname) or "" if askedformat ~= "" then askedformat = lower(askedformat) if trace_figures then @@ -806,7 +843,7 @@ local function locate(request) -- name, format, cache report_inclusion("warning: skipping path %s",path) end else - local foundname, quitscanning, forcedformat = figures.exists(check,format,true) + local foundname, quitscanning, forcedformat = figures.exists(check,format,resolve_too) -- true) if foundname then return register(askedname, { askedname = askedname, @@ -1246,9 +1283,9 @@ converters.ps = epsconverter local epstopdf = { resolutions = { - [variables.low] = "screen", - [variables.medium] = "ebook", - [variables.high] = "prepress", + [v_low] = "screen", + [v_medium] = "ebook", + [v_high] = "prepress", }, command = os.type == "windows" and "gswin32c" or "gs", -- -dProcessDSCComments=false diff --git a/tex/context/base/l-os.lua b/tex/context/base/l-os.lua index 08136b24d..1e7c91757 100644 --- a/tex/context/base/l-os.lua +++ b/tex/context/base/l-os.lua @@ -193,7 +193,14 @@ os.resolvers = os.resolvers or { } -- will become private local resolvers = os.resolvers -local osmt = getmetatable(os) or { __index = function(t,k) t[k] = "unset" return "unset" end } -- maybe nil +local osmt = getmetatable(os) or { __index = function(t,k) + local v = function() + print(format("function os.%s in namespace is undefined")) + end + t[k] = v + return v +end } -- maybe nil + local osix = osmt.__index osmt.__index = function(t,k) @@ -456,6 +463,9 @@ function os.now() return date("!%Y-%m-%d %H:%M:%S") -- 2011-12-04 14:59:12 end +if not os.sleep and socket then + os.sleep = socket.sleep +end -- print(os.which("inkscape.exe")) -- print(os.which("inkscape")) diff --git a/tex/context/base/luat-env.lua b/tex/context/base/luat-env.lua index e483169fd..efaaebf3e 100644 --- a/tex/context/base/luat-env.lua +++ b/tex/context/base/luat-env.lua @@ -1,4 +1,4 @@ -if not modules then modules = { } end modules ['luat-env'] = { + if not modules then modules = { } end modules ['luat-env'] = { version = 1.001, comment = "companion to luat-lib.mkiv", author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", @@ -6,94 +6,23 @@ if not modules then modules = { } end modules ['luat-env'] = { license = "see context related readme files" } --- A former version provided functionality for non embeded core --- scripts i.e. runtime library loading. Given the amount of --- Lua code we use now, this no longer makes sense. Much of this --- evolved before bytecode arrays were available and so a lot of +-- A former version provided functionality for non embeded core scripts i.e. runtime +-- library loading. Given the amount of Lua code we use now, this no longer makes +-- sense. Much of this evolved before bytecode arrays were available and so a lot of -- code has disappeared already. local trace_locating = false trackers.register("resolvers.locating", function(v) trace_locating = v end) local report_lua = logs.reporter("resolvers","lua") -local allocate, mark = utilities.storage.allocate, utilities.storage.mark - -local format, sub, match, gsub, find = string.format, string.sub, string.match, string.gsub, string.find -local unquoted, quoted = string.unquoted, string.quoted -local concat, insert, remove = table.concat, table.insert, table.remove - local luautilities = utilities.lua local luasuffixes = luautilities.suffixes environment = environment or { } local environment = environment --- precautions - -os.setlocale(nil,nil) -- useless feature and even dangerous in luatex - -function os.setlocale() - -- no way you can mess with it -end - --- dirty tricks (we will replace the texlua call by luatex --luaonly) - -local validengines = allocate { - ["luatex"] = true, - ["luajittex"] = true, - -- ["luatex.exe"] = true, - -- ["luajittex.exe"] = true, -} - -local basicengines = allocate { - ["luatex"] = "luatex", - ["texlua"] = "luatex", - ["texluac"] = "luatex", - ["luajittex"] = "luajittex", - ["texluajit"] = "luajittex", - -- ["texlua.exe"] = "luatex", - -- ["texluajit.exe"] = "luajittex", -} - -environment.validengines = validengines -environment.basicengines = basicengines - -if arg and validengines[file.removesuffix(arg[0])] and arg[1] == "--luaonly" then - arg[-1] = arg[0] - arg[ 0] = arg[2] - for k=3,#arg do - arg[k-2] = arg[k] - end - remove(arg) -- last - remove(arg) -- pre-last -end - --- This is an ugly hack but it permits symlinking a script (say 'context') to 'mtxrun' as in: --- --- ln -s /opt/minimals/tex/texmf-linux-64/bin/mtxrun context --- --- The special mapping hack is needed because 'luatools' boils down to 'mtxrun --script base' --- but it's unlikely that there will be more of this - -do - - local originalzero = file.basename(arg[0]) - local specialmapping = { luatools == "base" } - - if originalzero ~= "mtxrun" and originalzero ~= "mtxrun.lua" then - arg[0] = specialmapping[originalzero] or originalzero - insert(arg,0,"--script") - insert(arg,0,"mtxrun") - end - -end - -- environment -environment.arguments = allocate() -environment.files = allocate() -environment.sortedflags = nil - local mt = { __index = function(_,k) if k == "version" then @@ -122,161 +51,6 @@ local mt = { setmetatable(environment,mt) --- context specific arguments (in order not to confuse the engine) - -function environment.initializearguments(arg) - local arguments, files = { }, { } - environment.arguments, environment.files, environment.sortedflags = arguments, files, nil - for index=1,#arg do - local argument = arg[index] - if index > 0 then - local flag, value = match(argument,"^%-+(.-)=(.-)$") - if flag then - flag = gsub(flag,"^c:","") - arguments[flag] = unquoted(value or "") - else - flag = match(argument,"^%-+(.+)") - if flag then - flag = gsub(flag,"^c:","") - arguments[flag] = true - else - files[#files+1] = argument - end - end - end - end - environment.ownname = file.reslash(environment.ownname or arg[0] or 'unknown.lua') -end - -function environment.setargument(name,value) - environment.arguments[name] = value -end - --- todo: defaults, better checks e.g on type (boolean versus string) --- --- tricky: too many hits when we support partials unless we add --- a registration of arguments so from now on we have 'partial' - -function environment.getargument(name,partial) - local arguments, sortedflags = environment.arguments, environment.sortedflags - if arguments[name] then - return arguments[name] - elseif partial then - if not sortedflags then - sortedflags = allocate(table.sortedkeys(arguments)) - for k=1,#sortedflags do - sortedflags[k] = "^" .. sortedflags[k] - end - environment.sortedflags = sortedflags - end - -- example of potential clash: ^mode ^modefile - for k=1,#sortedflags do - local v = sortedflags[k] - if find(name,v) then - return arguments[sub(v,2,#v)] - end - end - end - return nil -end - -environment.argument = environment.getargument - -function environment.splitarguments(separator) -- rather special, cut-off before separator - local done, before, after = false, { }, { } - local originalarguments = environment.originalarguments - for k=1,#originalarguments do - local v = originalarguments[k] - if not done and v == separator then - done = true - elseif done then - after[#after+1] = v - else - before[#before+1] = v - end - end - return before, after -end - -function environment.reconstructcommandline(arg,noquote) - arg = arg or environment.originalarguments - if noquote and #arg == 1 then - -- we could just do: return unquoted(resolvers.resolve(arg[i])) - local a = arg[1] - a = resolvers.resolve(a) - a = unquoted(a) - return a - elseif #arg > 0 then - local result = { } - for i=1,#arg do - -- we could just do: result[#result+1] = format("%q",unquoted(resolvers.resolve(arg[i]))) - local a = arg[i] - a = resolvers.resolve(a) - a = unquoted(a) - a = gsub(a,'"','\\"') -- tricky - if find(a," ") then - result[#result+1] = quoted(a) - else - result[#result+1] = a - end - end - return concat(result," ") - else - return "" - end -end - --- -- to be tested: --- --- function environment.reconstructcommandline(arg,noquote) --- arg = arg or environment.originalarguments --- if noquote and #arg == 1 then --- return unquoted(resolvers.resolve(arg[1])) --- elseif #arg > 0 then --- local result = { } --- for i=1,#arg do --- result[#result+1] = format("%q",unquoted(resolvers.resolve(arg[i]))) -- always quote --- end --- return concat(result," ") --- else --- return "" --- end --- end - -if arg then - - -- new, reconstruct quoted snippets (maybe better just remove the " then and add them later) - local newarg, instring = { }, false - - for index=1,#arg do - local argument = arg[index] - if find(argument,"^\"") then - newarg[#newarg+1] = gsub(argument,"^\"","") - if not find(argument,"\"$") then - instring = true - end - elseif find(argument,"\"$") then - newarg[#newarg] = newarg[#newarg] .. " " .. gsub(argument,"\"$","") - instring = false - elseif instring then - newarg[#newarg] = newarg[#newarg] .. " " .. argument - else - newarg[#newarg+1] = argument - end - end - for i=1,-5,-1 do - newarg[i] = arg[i] - end - - environment.initializearguments(newarg) - - environment.originalarguments = mark(newarg) - environment.rawarguments = mark(arg) - - arg = { } -- prevent duplicate handling - -end - -- weird place ... depends on a not yet loaded module function environment.texfile(filename) diff --git a/tex/context/base/luat-lib.mkiv b/tex/context/base/luat-lib.mkiv index 521ecbf5e..4ece2a29a 100644 --- a/tex/context/base/luat-lib.mkiv +++ b/tex/context/base/luat-lib.mkiv @@ -65,6 +65,7 @@ \registerctxluafile{luat-lua}{1.001} \registerctxluafile{luat-sto}{1.001} \registerctxluafile{luat-ini}{1.001} +\registerctxluafile{util-env}{1.001} \registerctxluafile{luat-env}{1.001} \registerctxluafile{luat-exe}{1.001} \registerctxluafile{luat-iop}{1.001} diff --git a/tex/context/base/m-graph.mkiv b/tex/context/base/m-graph.mkiv index 8acbe1f8d..c80e4ad91 100644 --- a/tex/context/base/m-graph.mkiv +++ b/tex/context/base/m-graph.mkiv @@ -15,6 +15,8 @@ % are limited by what mp can do. We support @ as replacement for % the percent symbol. We also add a specifier when no one is given. +\unprotect + \startluacode local format, gsub, find, match = string.format, string.gsub, string.find, string.match @@ -54,10 +56,24 @@ % We could also delegate parsing using lower level plugins. -\startMPextensions - if unknown Fe_plus : picture Fe_plus ; Fe_plus := textext("+") ; fi ; +\defineMPinstance + [graph] + [\s!format=metafun, + \s!extensions=\v!yes, + \s!initializations=\v!yes, + \c!method=\s!double] + +\startMPdefinitions{graph} if unknown context_grap: input "mp-grap.mpiv" ; fi ; -\stopMPextensions +\stopMPdefinitions + +% gone: +% +% \startMPextensions +% if unknown Fe_plus : picture Fe_plus ; Fe_plus := textext("+") ; fi ; +% \stopMPextensions + +\protect \continueifinputfile{m-graph.mkiv} diff --git a/tex/context/base/status-files.pdf b/tex/context/base/status-files.pdf index 1a957aa56..26f01897e 100644 Binary files a/tex/context/base/status-files.pdf and b/tex/context/base/status-files.pdf differ diff --git a/tex/context/base/status-lua.pdf b/tex/context/base/status-lua.pdf index 0d0ded3d8..d4b7fb4c5 100644 Binary files a/tex/context/base/status-lua.pdf and b/tex/context/base/status-lua.pdf differ diff --git a/tex/context/base/strc-flt.mkvi b/tex/context/base/strc-flt.mkvi index e268afee7..6199a3e6b 100644 --- a/tex/context/base/strc-flt.mkvi +++ b/tex/context/base/strc-flt.mkvi @@ -756,8 +756,8 @@ \def\floatcaptionattribute {\iflocation - \ifnofloatnumber - \else + %\ifnofloatnumber + %\else \ifnofloatcaption \else \ifinsidesplitfloat @@ -769,7 +769,7 @@ attr \destinationattribute \currentfloatattribute \fi \fi - \fi + %\fi \fi} \newconditional\usesamefloatnumber @@ -1029,7 +1029,7 @@ \unexpanded\def\placefloats {\page_otr_command_flush_floats} - + \newdimen\d_strc_floats_margin \newdimen\d_strc_floats_top \newdimen\d_strc_floats_bottom diff --git a/tex/context/base/trac-lmx.lua b/tex/context/base/trac-lmx.lua index 2754dd16d..d20241735 100644 --- a/tex/context/base/trac-lmx.lua +++ b/tex/context/base/trac-lmx.lua @@ -142,6 +142,10 @@ local function loadedfile(name) return data end +local function loadedsubfile(name) + return io.loaddata(resolvers and resolvers.findfile and resolvers.findfile(name) or name) +end + lmx.loadedfile = loadedfile -- A few helpers (the next one could end up in l-lpeg): @@ -208,14 +212,15 @@ local function do_type_variable(str) end local function do_include(filename) - local data = loadedfile(filename) + local data = loadedsubfile(filename) if (not data or data == "") and type(usedpaths) == "table" then for i=1,#usedpaths do - data = loadedfile(joinpath(usedpaths[i],filename)) + data = loadedsubfile(joinpath(usedpaths[i],filename)) end end if not data or data == "" then data = format("",filename) + report_lmx("empty include file: %s",filename) end return data end diff --git a/tex/context/base/util-mrg.lua b/tex/context/base/util-mrg.lua index cdac10ac1..276531d79 100644 --- a/tex/context/base/util-mrg.lua +++ b/tex/context/base/util-mrg.lua @@ -120,6 +120,10 @@ local compact = Cs ( ( local strip = Cs((emptyline^2/"\n" + 1)^0) local stripreturn = Cs((1-P("return") * space^1 * P(1-space-eol)^1 * (space+eol)^0 * P(-1))^1) +function merger.compact(data) + return lpegmatch(strip,lpegmatch(compact,data)) +end + local function self_compact(data) local delta = 0 if merger.strip_comment then diff --git a/tex/context/base/util-sql-tickets.lua b/tex/context/base/util-sql-tickets.lua index 2dc334ce6..63bbf4d44 100644 --- a/tex/context/base/util-sql-tickets.lua +++ b/tex/context/base/util-sql-tickets.lua @@ -87,9 +87,7 @@ local template =[[ ]] function tickets.createdb(presets,datatable) - local db = checkeddb(presets,datatable) - local data, keys = db.execute { template = template, variables = { diff --git a/tex/context/base/util-sql.lua b/tex/context/base/util-sql.lua index 5310ea699..5d57c22f5 100644 --- a/tex/context/base/util-sql.lua +++ b/tex/context/base/util-sql.lua @@ -111,7 +111,9 @@ local defaults = { __index = } table.setmetatableindex(sql.methods,function(t,k) + report_state("start loading method %q",k) require("util-sql-imp-"..k) + report_state("loading method %q done",k) return rawget(t,k) end) @@ -328,6 +330,8 @@ function sql.usedatabase(presets,datatable) deserialize = deserialize, unpackdata = unpackdata, } + else + report_state("missing name in usedatabase specification") end end diff --git a/tex/generic/context/luatex/luatex-basics-nod.lua b/tex/generic/context/luatex/luatex-basics-nod.lua index 151d98a8f..ec515001e 100644 --- a/tex/generic/context/luatex/luatex-basics-nod.lua +++ b/tex/generic/context/luatex/luatex-basics-nod.lua @@ -63,6 +63,9 @@ nodes.glyphcodes = glyphcodes local free_node = node.free local remove_node = node.remove local new_node = node.new +local traverse_id = node.traverse_id + +local math_code = nodecodes.math nodes.handlers.protectglyphs = node.protect_glyphs nodes.handlers.unprotectglyphs = node.unprotect_glyphs @@ -93,3 +96,9 @@ function nodes.pool.kern(k) n.kern = k return n end + +function nodes.endofmath(n) + for n in traverse_id(math_code,n.next) do + return n + end +end diff --git a/tex/generic/context/luatex/luatex-fonts-merged.lua b/tex/generic/context/luatex/luatex-fonts-merged.lua index 6121c7206..1b0334cc9 100644 --- a/tex/generic/context/luatex/luatex-fonts-merged.lua +++ b/tex/generic/context/luatex/luatex-fonts-merged.lua @@ -1,13581 +1,10360 @@ -- merged file : luatex-fonts-merged.lua -- parent file : luatex-fonts.lua --- merge date : 01/31/13 22:47:25 +-- merge date : 02/05/13 13:35:14 do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-lpeg'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['l-lpeg']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - --- a new lpeg fails on a #(1-P(":")) test and really needs a + P(-1) - --- move utf -> l-unicode --- move string -> l-string or keep it here - -local lpeg = require("lpeg") - --- tracing (only used when we encounter a problem in integration of lpeg in luatex) - --- some code will move to unicode and string - -local report = texio and texio.write_nl or print - --- local lpmatch = lpeg.match --- local lpprint = lpeg.print --- local lpp = lpeg.P --- local lpr = lpeg.R --- local lps = lpeg.S --- local lpc = lpeg.C --- local lpb = lpeg.B --- local lpv = lpeg.V --- local lpcf = lpeg.Cf --- local lpcb = lpeg.Cb --- local lpcg = lpeg.Cg --- local lpct = lpeg.Ct --- local lpcs = lpeg.Cs --- local lpcc = lpeg.Cc --- local lpcmt = lpeg.Cmt --- local lpcarg = lpeg.Carg - --- function lpeg.match(l,...) report("LPEG MATCH") lpprint(l) return lpmatch(l,...) end - --- function lpeg.P (l) local p = lpp (l) report("LPEG P =") lpprint(l) return p end --- function lpeg.R (l) local p = lpr (l) report("LPEG R =") lpprint(l) return p end --- function lpeg.S (l) local p = lps (l) report("LPEG S =") lpprint(l) return p end --- function lpeg.C (l) local p = lpc (l) report("LPEG C =") lpprint(l) return p end --- function lpeg.B (l) local p = lpb (l) report("LPEG B =") lpprint(l) return p end --- function lpeg.V (l) local p = lpv (l) report("LPEG V =") lpprint(l) return p end --- function lpeg.Cf (l) local p = lpcf (l) report("LPEG Cf =") lpprint(l) return p end --- function lpeg.Cb (l) local p = lpcb (l) report("LPEG Cb =") lpprint(l) return p end --- function lpeg.Cg (l) local p = lpcg (l) report("LPEG Cg =") lpprint(l) return p end --- function lpeg.Ct (l) local p = lpct (l) report("LPEG Ct =") lpprint(l) return p end --- function lpeg.Cs (l) local p = lpcs (l) report("LPEG Cs =") lpprint(l) return p end --- function lpeg.Cc (l) local p = lpcc (l) report("LPEG Cc =") lpprint(l) return p end --- function lpeg.Cmt (l) local p = lpcmt (l) report("LPEG Cmt =") lpprint(l) return p end --- function lpeg.Carg (l) local p = lpcarg(l) report("LPEG Carg =") lpprint(l) return p end - -local type, next, tostring = type, next, tostring -local byte, char, gmatch, format = string.byte, string.char, string.gmatch, string.format ------ mod, div = math.mod, math.div -local floor = math.floor - -local P, R, S, V, Ct, C, Cs, Cc, Cp, Cmt = lpeg.P, lpeg.R, lpeg.S, lpeg.V, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.Cp, lpeg.Cmt -local lpegtype, lpegmatch, lpegprint = lpeg.type, lpeg.match, lpeg.print - --- let's start with an inspector: - +local lpeg=require("lpeg") +local report=texio and texio.write_nl or print +local type,next,tostring=type,next,tostring +local byte,char,gmatch,format=string.byte,string.char,string.gmatch,string.format +local floor=math.floor +local P,R,S,V,Ct,C,Cs,Cc,Cp,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.V,lpeg.Ct,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Cp,lpeg.Cmt +local lpegtype,lpegmatch,lpegprint=lpeg.type,lpeg.match,lpeg.print setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end) - --- Beware, we predefine a bunch of patterns here and one reason for doing so --- is that we get consistent behaviour in some of the visualizers. - -lpeg.patterns = lpeg.patterns or { } -- so that we can share -local patterns = lpeg.patterns - - -local anything = P(1) -local endofstring = P(-1) -local alwaysmatched = P(true) - -patterns.anything = anything -patterns.endofstring = endofstring -patterns.beginofstring = alwaysmatched -patterns.alwaysmatched = alwaysmatched - -local digit, sign = R('09'), S('+-') -local cr, lf, crlf = P("\r"), P("\n"), P("\r\n") -local newline = crlf + S("\r\n") -- cr + lf -local escaped = P("\\") * anything -local squote = P("'") -local dquote = P('"') -local space = P(" ") - -local utfbom_32_be = P('\000\000\254\255') -local utfbom_32_le = P('\255\254\000\000') -local utfbom_16_be = P('\255\254') -local utfbom_16_le = P('\254\255') -local utfbom_8 = P('\239\187\191') -local utfbom = utfbom_32_be + utfbom_32_le - + utfbom_16_be + utfbom_16_le - + utfbom_8 -local utftype = utfbom_32_be * Cc("utf-32-be") + utfbom_32_le * Cc("utf-32-le") - + utfbom_16_be * Cc("utf-16-be") + utfbom_16_le * Cc("utf-16-le") - + utfbom_8 * Cc("utf-8") + alwaysmatched * Cc("utf-8") -- assume utf8 -local utfoffset = utfbom_32_be * Cc(4) + utfbom_32_le * Cc(4) - + utfbom_16_be * Cc(2) + utfbom_16_le * Cc(2) - + utfbom_8 * Cc(3) + Cc(0) - -local utf8next = R("\128\191") - -patterns.utf8one = R("\000\127") -patterns.utf8two = R("\194\223") * utf8next -patterns.utf8three = R("\224\239") * utf8next * utf8next -patterns.utf8four = R("\240\244") * utf8next * utf8next * utf8next -patterns.utfbom = utfbom -patterns.utftype = utftype -patterns.utfoffset = utfoffset - -local utf8char = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four -local validutf8char = utf8char^0 * endofstring * Cc(true) + Cc(false) - -patterns.utf8 = utf8char -patterns.utf8char = utf8char -patterns.validutf8 = validutf8char -patterns.validutf8char = validutf8char - -local eol = S("\n\r") -local spacer = S(" \t\f\v") -- + char(0xc2, 0xa0) if we want utf (cf mail roberto) -local whitespace = eol + spacer -local nonspacer = 1 - spacer -local nonwhitespace = 1 - whitespace - -patterns.eol = eol -patterns.spacer = spacer -patterns.whitespace = whitespace -patterns.nonspacer = nonspacer -patterns.nonwhitespace = nonwhitespace - -local stripper = spacer^0 * C((spacer^0 * nonspacer^1)^0) -- from example by roberto - ------ collapser = Cs(spacer^0/"" * ((spacer^1 * P(-1) / "") + (spacer^1/" ") + P(1))^0) -local collapser = Cs(spacer^0/"" * nonspacer^0 * ((spacer^0/" " * nonspacer^1)^0)) - -patterns.stripper = stripper -patterns.collapser = collapser - -patterns.digit = digit -patterns.sign = sign -patterns.cardinal = sign^0 * digit^1 -patterns.integer = sign^0 * digit^1 -patterns.unsigned = digit^0 * P('.') * digit^1 -patterns.float = sign^0 * patterns.unsigned -patterns.cunsigned = digit^0 * P(',') * digit^1 -patterns.cfloat = sign^0 * patterns.cunsigned -patterns.number = patterns.float + patterns.integer -patterns.cnumber = patterns.cfloat + patterns.integer -patterns.oct = P("0") * R("07")^1 -patterns.octal = patterns.oct -patterns.HEX = P("0x") * R("09","AF")^1 -patterns.hex = P("0x") * R("09","af")^1 -patterns.hexadecimal = P("0x") * R("09","AF","af")^1 -patterns.lowercase = R("az") -patterns.uppercase = R("AZ") -patterns.letter = patterns.lowercase + patterns.uppercase -patterns.space = space -patterns.tab = P("\t") -patterns.spaceortab = patterns.space + patterns.tab -patterns.newline = newline -patterns.emptyline = newline^1 -patterns.equal = P("=") -patterns.comma = P(",") -patterns.commaspacer = P(",") * spacer^0 -patterns.period = P(".") -patterns.colon = P(":") -patterns.semicolon = P(";") -patterns.underscore = P("_") -patterns.escaped = escaped -patterns.squote = squote -patterns.dquote = dquote -patterns.nosquote = (escaped + (1-squote))^0 -patterns.nodquote = (escaped + (1-dquote))^0 -patterns.unsingle = (squote/"") * patterns.nosquote * (squote/"") -- will change to C in the middle -patterns.undouble = (dquote/"") * patterns.nodquote * (dquote/"") -- will change to C in the middle -patterns.unquoted = patterns.undouble + patterns.unsingle -- more often undouble -patterns.unspacer = ((patterns.spacer^1)/"")^0 - -patterns.singlequoted = squote * patterns.nosquote * squote -patterns.doublequoted = dquote * patterns.nodquote * dquote -patterns.quoted = patterns.doublequoted + patterns.singlequoted - -patterns.propername = R("AZ","az","__") * R("09","AZ","az", "__")^0 * P(-1) - -patterns.somecontent = (anything - newline - space)^1 -- (utf8char - newline - space)^1 -patterns.beginline = #(1-newline) - -patterns.longtostring = Cs(whitespace^0/"" * nonwhitespace^0 * ((whitespace^0/" " * (patterns.quoted + nonwhitespace)^1)^0)) - -local function anywhere(pattern) --slightly adapted from website - return P { P(pattern) + 1 * V(1) } -end - -lpeg.anywhere = anywhere - +lpeg.patterns=lpeg.patterns or {} +local patterns=lpeg.patterns +local anything=P(1) +local endofstring=P(-1) +local alwaysmatched=P(true) +patterns.anything=anything +patterns.endofstring=endofstring +patterns.beginofstring=alwaysmatched +patterns.alwaysmatched=alwaysmatched +local digit,sign=R('09'),S('+-') +local cr,lf,crlf=P("\r"),P("\n"),P("\r\n") +local newline=crlf+S("\r\n") +local escaped=P("\\")*anything +local squote=P("'") +local dquote=P('"') +local space=P(" ") +local utfbom_32_be=P('\000\000\254\255') +local utfbom_32_le=P('\255\254\000\000') +local utfbom_16_be=P('\255\254') +local utfbom_16_le=P('\254\255') +local utfbom_8=P('\239\187\191') +local utfbom=utfbom_32_be+utfbom_32_le+utfbom_16_be+utfbom_16_le+utfbom_8 +local utftype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")+alwaysmatched*Cc("utf-8") +local utfoffset=utfbom_32_be*Cc(4)+utfbom_32_le*Cc(4)+utfbom_16_be*Cc(2)+utfbom_16_le*Cc(2)+utfbom_8*Cc(3)+Cc(0) +local utf8next=R("\128\191") +patterns.utf8one=R("\000\127") +patterns.utf8two=R("\194\223")*utf8next +patterns.utf8three=R("\224\239")*utf8next*utf8next +patterns.utf8four=R("\240\244")*utf8next*utf8next*utf8next +patterns.utfbom=utfbom +patterns.utftype=utftype +patterns.utfoffset=utfoffset +local utf8char=patterns.utf8one+patterns.utf8two+patterns.utf8three+patterns.utf8four +local validutf8char=utf8char^0*endofstring*Cc(true)+Cc(false) +patterns.utf8=utf8char +patterns.utf8char=utf8char +patterns.validutf8=validutf8char +patterns.validutf8char=validutf8char +local eol=S("\n\r") +local spacer=S(" \t\f\v") +local whitespace=eol+spacer +local nonspacer=1-spacer +local nonwhitespace=1-whitespace +patterns.eol=eol +patterns.spacer=spacer +patterns.whitespace=whitespace +patterns.nonspacer=nonspacer +patterns.nonwhitespace=nonwhitespace +local stripper=spacer^0*C((spacer^0*nonspacer^1)^0) +local collapser=Cs(spacer^0/""*nonspacer^0*((spacer^0/" "*nonspacer^1)^0)) +patterns.stripper=stripper +patterns.collapser=collapser +patterns.digit=digit +patterns.sign=sign +patterns.cardinal=sign^0*digit^1 +patterns.integer=sign^0*digit^1 +patterns.unsigned=digit^0*P('.')*digit^1 +patterns.float=sign^0*patterns.unsigned +patterns.cunsigned=digit^0*P(',')*digit^1 +patterns.cfloat=sign^0*patterns.cunsigned +patterns.number=patterns.float+patterns.integer +patterns.cnumber=patterns.cfloat+patterns.integer +patterns.oct=P("0")*R("07")^1 +patterns.octal=patterns.oct +patterns.HEX=P("0x")*R("09","AF")^1 +patterns.hex=P("0x")*R("09","af")^1 +patterns.hexadecimal=P("0x")*R("09","AF","af")^1 +patterns.lowercase=R("az") +patterns.uppercase=R("AZ") +patterns.letter=patterns.lowercase+patterns.uppercase +patterns.space=space +patterns.tab=P("\t") +patterns.spaceortab=patterns.space+patterns.tab +patterns.newline=newline +patterns.emptyline=newline^1 +patterns.equal=P("=") +patterns.comma=P(",") +patterns.commaspacer=P(",")*spacer^0 +patterns.period=P(".") +patterns.colon=P(":") +patterns.semicolon=P(";") +patterns.underscore=P("_") +patterns.escaped=escaped +patterns.squote=squote +patterns.dquote=dquote +patterns.nosquote=(escaped+(1-squote))^0 +patterns.nodquote=(escaped+(1-dquote))^0 +patterns.unsingle=(squote/"")*patterns.nosquote*(squote/"") +patterns.undouble=(dquote/"")*patterns.nodquote*(dquote/"") +patterns.unquoted=patterns.undouble+patterns.unsingle +patterns.unspacer=((patterns.spacer^1)/"")^0 +patterns.singlequoted=squote*patterns.nosquote*squote +patterns.doublequoted=dquote*patterns.nodquote*dquote +patterns.quoted=patterns.doublequoted+patterns.singlequoted +patterns.propername=R("AZ","az","__")*R("09","AZ","az","__")^0*P(-1) +patterns.somecontent=(anything-newline-space)^1 +patterns.beginline=#(1-newline) +patterns.longtostring=Cs(whitespace^0/""*nonwhitespace^0*((whitespace^0/" "*(patterns.quoted+nonwhitespace)^1)^0)) +local function anywhere(pattern) + return P { P(pattern)+1*V(1) } +end +lpeg.anywhere=anywhere function lpeg.instringchecker(p) - p = anywhere(p) - return function(str) - return lpegmatch(p,str) and true or false - end + p=anywhere(p) + return function(str) + return lpegmatch(p,str) and true or false + end end - -function lpeg.splitter(pattern, action) - return (((1-P(pattern))^1)/action+1)^0 +function lpeg.splitter(pattern,action) + return (((1-P(pattern))^1)/action+1)^0 end - -function lpeg.tsplitter(pattern, action) - return Ct((((1-P(pattern))^1)/action+1)^0) +function lpeg.tsplitter(pattern,action) + return Ct((((1-P(pattern))^1)/action+1)^0) end - --- probleem: separator can be lpeg and that does not hash too well, but --- it's quite okay as the key is then not garbage collected - -local splitters_s, splitters_m, splitters_t = { }, { }, { } - +local splitters_s,splitters_m,splitters_t={},{},{} local function splitat(separator,single) - local splitter = (single and splitters_s[separator]) or splitters_m[separator] - if not splitter then - separator = P(separator) - local other = C((1 - separator)^0) - if single then - local any = anything - splitter = other * (separator * C(any^0) + "") -- ? - splitters_s[separator] = splitter - else - splitter = other * (separator * other)^0 - splitters_m[separator] = splitter - end + local splitter=(single and splitters_s[separator]) or splitters_m[separator] + if not splitter then + separator=P(separator) + local other=C((1-separator)^0) + if single then + local any=anything + splitter=other*(separator*C(any^0)+"") + splitters_s[separator]=splitter + else + splitter=other*(separator*other)^0 + splitters_m[separator]=splitter end - return splitter + end + return splitter end - local function tsplitat(separator) - local splitter = splitters_t[separator] - if not splitter then - splitter = Ct(splitat(separator)) - splitters_t[separator] = splitter - end - return splitter -end - -lpeg.splitat = splitat -lpeg.tsplitat = tsplitat - + local splitter=splitters_t[separator] + if not splitter then + splitter=Ct(splitat(separator)) + splitters_t[separator]=splitter + end + return splitter +end +lpeg.splitat=splitat +lpeg.tsplitat=tsplitat function string.splitup(str,separator) - if not separator then - separator = "," - end - return lpegmatch(splitters_m[separator] or splitat(separator),str) + if not separator then + separator="," + end + return lpegmatch(splitters_m[separator] or splitat(separator),str) end - --- local p = splitat("->",false) print(lpegmatch(p,"oeps->what->more")) -- oeps what more --- local p = splitat("->",true) print(lpegmatch(p,"oeps->what->more")) -- oeps what->more --- local p = splitat("->",false) print(lpegmatch(p,"oeps")) -- oeps --- local p = splitat("->",true) print(lpegmatch(p,"oeps")) -- oeps - -local cache = { } - +local cache={} function lpeg.split(separator,str) - local c = cache[separator] - if not c then - c = tsplitat(separator) - cache[separator] = c - end - return lpegmatch(c,str) + local c=cache[separator] + if not c then + c=tsplitat(separator) + cache[separator]=c + end + return lpegmatch(c,str) end - function string.split(str,separator) - if separator then - local c = cache[separator] - if not c then - c = tsplitat(separator) - cache[separator] = c - end - return lpegmatch(c,str) - else - return { str } + if separator then + local c=cache[separator] + if not c then + c=tsplitat(separator) + cache[separator]=c end -end - -local spacing = patterns.spacer^0 * newline -- sort of strip -local empty = spacing * Cc("") -local nonempty = Cs((1-spacing)^1) * spacing^-1 -local content = (empty + nonempty)^1 - -patterns.textline = content - -local linesplitter = tsplitat(newline) - -patterns.linesplitter = linesplitter - + return lpegmatch(c,str) + else + return { str } + end +end +local spacing=patterns.spacer^0*newline +local empty=spacing*Cc("") +local nonempty=Cs((1-spacing)^1)*spacing^-1 +local content=(empty+nonempty)^1 +patterns.textline=content +local linesplitter=tsplitat(newline) +patterns.linesplitter=linesplitter function string.splitlines(str) - return lpegmatch(linesplitter,str) + return lpegmatch(linesplitter,str) end - --- lpeg.splitters = cache -- no longer public - -local cache = { } - +local cache={} function lpeg.checkedsplit(separator,str) - local c = cache[separator] - if not c then - separator = P(separator) - local other = C((1 - separator)^1) - c = Ct(separator^0 * other * (separator^1 * other)^0) - cache[separator] = c - end - return lpegmatch(c,str) + local c=cache[separator] + if not c then + separator=P(separator) + local other=C((1-separator)^1) + c=Ct(separator^0*other*(separator^1*other)^0) + cache[separator]=c + end + return lpegmatch(c,str) end - function string.checkedsplit(str,separator) - local c = cache[separator] - if not c then - separator = P(separator) - local other = C((1 - separator)^1) - c = Ct(separator^0 * other * (separator^1 * other)^0) - cache[separator] = c - end - return lpegmatch(c,str) -end - --- from roberto's site: - -local function f2(s) local c1, c2 = byte(s,1,2) return c1 * 64 + c2 - 12416 end -local function f3(s) local c1, c2, c3 = byte(s,1,3) return (c1 * 64 + c2) * 64 + c3 - 925824 end -local function f4(s) local c1, c2, c3, c4 = byte(s,1,4) return ((c1 * 64 + c2) * 64 + c3) * 64 + c4 - 63447168 end - -local utf8byte = patterns.utf8one/byte + patterns.utf8two/f2 + patterns.utf8three/f3 + patterns.utf8four/f4 - -patterns.utf8byte = utf8byte - ---~ local str = " a b c d " - ---~ local s = lpeg.stripper(lpeg.R("az")) print("["..lpegmatch(s,str).."]") ---~ local s = lpeg.keeper(lpeg.R("az")) print("["..lpegmatch(s,str).."]") ---~ local s = lpeg.stripper("ab") print("["..lpegmatch(s,str).."]") ---~ local s = lpeg.keeper("ab") print("["..lpegmatch(s,str).."]") - -local cache = { } - + local c=cache[separator] + if not c then + separator=P(separator) + local other=C((1-separator)^1) + c=Ct(separator^0*other*(separator^1*other)^0) + cache[separator]=c + end + return lpegmatch(c,str) +end +local function f2(s) local c1,c2=byte(s,1,2) return c1*64+c2-12416 end +local function f3(s) local c1,c2,c3=byte(s,1,3) return (c1*64+c2)*64+c3-925824 end +local function f4(s) local c1,c2,c3,c4=byte(s,1,4) return ((c1*64+c2)*64+c3)*64+c4-63447168 end +local utf8byte=patterns.utf8one/byte+patterns.utf8two/f2+patterns.utf8three/f3+patterns.utf8four/f4 +patterns.utf8byte=utf8byte +local cache={} function lpeg.stripper(str) - if type(str) == "string" then - local s = cache[str] - if not s then - s = Cs(((S(str)^1)/"" + 1)^0) - cache[str] = s - end - return s - else - return Cs(((str^1)/"" + 1)^0) + if type(str)=="string" then + local s=cache[str] + if not s then + s=Cs(((S(str)^1)/""+1)^0) + cache[str]=s end + return s + else + return Cs(((str^1)/""+1)^0) + end end - -local cache = { } - +local cache={} function lpeg.keeper(str) - if type(str) == "string" then - local s = cache[str] - if not s then - s = Cs((((1-S(str))^1)/"" + 1)^0) - cache[str] = s - end - return s - else - return Cs((((1-str)^1)/"" + 1)^0) - end -end - -function lpeg.frontstripper(str) -- or pattern (yet undocumented) - return (P(str) + P(true)) * Cs(anything^0) -end - -function lpeg.endstripper(str) -- or pattern (yet undocumented) - return Cs((1 - P(str) * endofstring)^0) -end - --- Just for fun I looked at the used bytecode and --- p = (p and p + pp) or pp gets one more (testset). - --- todo: cache when string - -function lpeg.replacer(one,two,makefunction,isutf) -- in principle we should sort the keys - local pattern - local u = isutf and utf8char or 1 - if type(one) == "table" then - local no = #one - local p = P(false) - if no == 0 then - for k, v in next, one do - p = p + P(k) / v - end - pattern = Cs((p + u)^0) - elseif no == 1 then - local o = one[1] - one, two = P(o[1]), o[2] - -- pattern = Cs(((1-one)^1 + one/two)^0) - pattern = Cs((one/two + u)^0) - else - for i=1,no do - local o = one[i] - p = p + P(o[1]) / o[2] - end - pattern = Cs((p + u)^0) - end - else - pattern = Cs((P(one)/(two or "") + u)^0) + if type(str)=="string" then + local s=cache[str] + if not s then + s=Cs((((1-S(str))^1)/""+1)^0) + cache[str]=s end - if makefunction then - return function(str) - return lpegmatch(pattern,str) - end + return s + else + return Cs((((1-str)^1)/""+1)^0) + end +end +function lpeg.frontstripper(str) + return (P(str)+P(true))*Cs(anything^0) +end +function lpeg.endstripper(str) + return Cs((1-P(str)*endofstring)^0) +end +function lpeg.replacer(one,two,makefunction,isutf) + local pattern + local u=isutf and utf8char or 1 + if type(one)=="table" then + local no=#one + local p=P(false) + if no==0 then + for k,v in next,one do + p=p+P(k)/v + end + pattern=Cs((p+u)^0) + elseif no==1 then + local o=one[1] + one,two=P(o[1]),o[2] + pattern=Cs((one/two+u)^0) else - return pattern + for i=1,no do + local o=one[i] + p=p+P(o[1])/o[2] + end + pattern=Cs((p+u)^0) + end + else + pattern=Cs((P(one)/(two or "")+u)^0) + end + if makefunction then + return function(str) + return lpegmatch(pattern,str) end + else + return pattern + end end - function lpeg.finder(lst,makefunction) - local pattern - if type(lst) == "table" then - pattern = P(false) - if #lst == 0 then - for k, v in next, lst do - pattern = pattern + P(k) -- ignore key, so we can use a replacer table - end - else - for i=1,#lst do - pattern = pattern + P(lst[i]) - end - end - else - pattern = P(lst) - end - pattern = (1-pattern)^0 * pattern - if makefunction then - return function(str) - return lpegmatch(pattern,str) - end + local pattern + if type(lst)=="table" then + pattern=P(false) + if #lst==0 then + for k,v in next,lst do + pattern=pattern+P(k) + end else - return pattern - end -end - --- print(lpeg.match(lpeg.replacer("e","a"),"test test")) --- print(lpeg.match(lpeg.replacer{{"e","a"}},"test test")) --- print(lpeg.match(lpeg.replacer({ e = "a", t = "x" }),"test test")) - -local splitters_f, splitters_s = { }, { } - -function lpeg.firstofsplit(separator) -- always return value - local splitter = splitters_f[separator] - if not splitter then - separator = P(separator) - splitter = C((1 - separator)^0) - splitters_f[separator] = splitter - end - return splitter -end - -function lpeg.secondofsplit(separator) -- nil if not split - local splitter = splitters_s[separator] - if not splitter then - separator = P(separator) - splitter = (1 - separator)^0 * separator * C(anything^0) - splitters_s[separator] = splitter - end - return splitter + for i=1,#lst do + pattern=pattern+P(lst[i]) + end + end + else + pattern=P(lst) + end + pattern=(1-pattern)^0*pattern + if makefunction then + return function(str) + return lpegmatch(pattern,str) + end + else + return pattern + end +end +local splitters_f,splitters_s={},{} +function lpeg.firstofsplit(separator) + local splitter=splitters_f[separator] + if not splitter then + separator=P(separator) + splitter=C((1-separator)^0) + splitters_f[separator]=splitter + end + return splitter +end +function lpeg.secondofsplit(separator) + local splitter=splitters_s[separator] + if not splitter then + separator=P(separator) + splitter=(1-separator)^0*separator*C(anything^0) + splitters_s[separator]=splitter + end + return splitter end - function lpeg.balancer(left,right) - left, right = P(left), P(right) - return P { left * ((1 - left - right) + V(1))^0 * right } + left,right=P(left),P(right) + return P { left*((1-left-right)+V(1))^0*right } end - --- print(1,lpegmatch(lpeg.firstofsplit(":"),"bc:de")) --- print(2,lpegmatch(lpeg.firstofsplit(":"),":de")) -- empty --- print(3,lpegmatch(lpeg.firstofsplit(":"),"bc")) --- print(4,lpegmatch(lpeg.secondofsplit(":"),"bc:de")) --- print(5,lpegmatch(lpeg.secondofsplit(":"),"bc:")) -- empty --- print(6,lpegmatch(lpeg.secondofsplit(":",""),"bc")) --- print(7,lpegmatch(lpeg.secondofsplit(":"),"bc")) --- print(9,lpegmatch(lpeg.secondofsplit(":","123"),"bc")) - --- -- slower: --- --- function lpeg.counter(pattern) --- local n, pattern = 0, (lpeg.P(pattern)/function() n = n + 1 end + lpeg.anything)^0 --- return function(str) n = 0 ; lpegmatch(pattern,str) ; return n end --- end - -local nany = utf8char/"" - +local nany=utf8char/"" function lpeg.counter(pattern) - pattern = Cs((P(pattern)/" " + nany)^0) - return function(str) - return #lpegmatch(pattern,str) - end -end - --- utf extensies - -local utfcharacters = utf and utf.characters or string.utfcharacters -local utfgmatch = unicode and unicode.utf8.gmatch -local utfchar = utf and utf.char or (unicode and unicode.utf8 and unicode.utf8.char) - -lpeg.UP = lpeg.P - + pattern=Cs((P(pattern)/" "+nany)^0) + return function(str) + return #lpegmatch(pattern,str) + end +end +local utfcharacters=utf and utf.characters or string.utfcharacters +local utfgmatch=unicode and unicode.utf8.gmatch +local utfchar=utf and utf.char or (unicode and unicode.utf8 and unicode.utf8.char) +lpeg.UP=lpeg.P if utfcharacters then - - function lpeg.US(str) - local p = P(false) - for uc in utfcharacters(str) do - p = p + P(uc) - end - return p + function lpeg.US(str) + local p=P(false) + for uc in utfcharacters(str) do + p=p+P(uc) end - - + return p + end elseif utfgmatch then - - function lpeg.US(str) - local p = P(false) - for uc in utfgmatch(str,".") do - p = p + P(uc) - end - return p + function lpeg.US(str) + local p=P(false) + for uc in utfgmatch(str,".") do + p=p+P(uc) end - + return p + end else - - function lpeg.US(str) - local p = P(false) - local f = function(uc) - p = p + P(uc) - end - lpegmatch((utf8char/f)^0,str) - return p + function lpeg.US(str) + local p=P(false) + local f=function(uc) + p=p+P(uc) end - + lpegmatch((utf8char/f)^0,str) + return p + end end - -local range = utf8byte * utf8byte + Cc(false) -- utf8byte is already a capture - +local range=utf8byte*utf8byte+Cc(false) function lpeg.UR(str,more) - local first, last - if type(str) == "number" then - first = str - last = more or first - else - first, last = lpegmatch(range,str) - if not last then - return P(str) - end - end - if first == last then - return P(str) - elseif utfchar and (last - first < 8) then -- a somewhat arbitrary criterium - local p = P(false) - for i=first,last do - p = p + P(utfchar(i)) - end - return p -- nil when invalid range - else - local f = function(b) - return b >= first and b <= last - end - -- tricky, these nested captures - return utf8byte / f -- nil when invalid range - end + local first,last + if type(str)=="number" then + first=str + last=more or first + else + first,last=lpegmatch(range,str) + if not last then + return P(str) + end + end + if first==last then + return P(str) + elseif utfchar and (last-first<8) then + local p=P(false) + for i=first,last do + p=p+P(utfchar(i)) + end + return p + else + local f=function(b) + return b>=first and b<=last + end + return utf8byte/f + end end - --- print(lpeg.match(lpeg.Cs((C(lpeg.UR("αω"))/{ ["χ"] = "OEPS" })^0),"αωχαω")) - --- lpeg.print(lpeg.R("ab","cd","gh")) --- lpeg.print(lpeg.P("a","b","c")) --- lpeg.print(lpeg.S("a","b","c")) - --- print(lpeg.count("äáàa",lpeg.P("á") + lpeg.P("à"))) --- print(lpeg.count("äáàa",lpeg.UP("áà"))) --- print(lpeg.count("äáàa",lpeg.US("àá"))) --- print(lpeg.count("äáàa",lpeg.UR("aá"))) --- print(lpeg.count("äáàa",lpeg.UR("àá"))) --- print(lpeg.count("äáàa",lpeg.UR(0x0000,0xFFFF))) - function lpeg.is_lpeg(p) - return p and lpegtype(p) == "pattern" -end - -function lpeg.oneof(list,...) -- lpeg.oneof("elseif","else","if","then") -- assume proper order - if type(list) ~= "table" then - list = { list, ... } - end - -- table.sort(list) -- longest match first - local p = P(list[1]) - for l=2,#list do - p = p + P(list[l]) - end - return p -end - --- For the moment here, but it might move to utilities. Beware, we need to --- have the longest keyword first, so 'aaa' comes beforte 'aa' which is why we --- loop back from the end cq. prepend. - -local sort = table.sort - + return p and lpegtype(p)=="pattern" +end +function lpeg.oneof(list,...) + if type(list)~="table" then + list={ list,... } + end + local p=P(list[1]) + for l=2,#list do + p=p+P(list[l]) + end + return p +end +local sort=table.sort local function copyindexed(old) - local new = { } - for i=1,#old do - new[i] = old - end - return new + local new={} + for i=1,#old do + new[i]=old + end + return new end - local function sortedkeys(tab) - local keys, s = { }, 0 - for key,_ in next, tab do - s = s + 1 - keys[s] = key - end - sort(keys) - return keys + local keys,s={},0 + for key,_ in next,tab do + s=s+1 + keys[s]=key + end + sort(keys) + return keys end - function lpeg.append(list,pp,delayed,checked) - local p = pp - if #list > 0 then - local keys = copyindexed(list) - sort(keys) - for i=#keys,1,-1 do - local k = keys[i] - if p then - p = P(k) + p - else - p = P(k) - end - end - elseif delayed then -- hm, it looks like the lpeg parser resolves anyway - local keys = sortedkeys(list) + local p=pp + if #list>0 then + local keys=copyindexed(list) + sort(keys) + for i=#keys,1,-1 do + local k=keys[i] + if p then + p=P(k)+p + else + p=P(k) + end + end + elseif delayed then + local keys=sortedkeys(list) + if p then + for i=1,#keys,1 do + local k=keys[i] + local v=list[k] + p=P(k)/list+p + end + else + for i=1,#keys do + local k=keys[i] + local v=list[k] if p then - for i=1,#keys,1 do - local k = keys[i] - local v = list[k] - p = P(k)/list + p - end + p=P(k)+p else - for i=1,#keys do - local k = keys[i] - local v = list[k] - if p then - p = P(k) + p - else - p = P(k) - end - end - if p then - p = p / list - end - end - elseif checked then - -- problem: substitution gives a capture - local keys = sortedkeys(list) - for i=1,#keys do - local k = keys[i] - local v = list[k] - if p then - if k == v then - p = P(k) + p - else - p = P(k)/v + p - end - else - if k == v then - p = P(k) - else - p = P(k)/v - end - end - end - else - local keys = sortedkeys(list) - for i=1,#keys do - local k = keys[i] - local v = list[k] - if p then - p = P(k)/v + p - else - p = P(k)/v - end + p=P(k) end + end + if p then + p=p/list + end end - return p -end - --- inspect(lpeg.append({ a = "1", aa = "1", aaa = "1" } ,nil,true)) --- inspect(lpeg.append({ ["degree celsius"] = "1", celsius = "1", degree = "1" } ,nil,true)) - --- function lpeg.exact_match(words,case_insensitive) --- local pattern = concat(words) --- if case_insensitive then --- local pattern = S(upper(characters)) + S(lower(characters)) --- local list = { } --- for i=1,#words do --- list[lower(words[i])] = true --- end --- return Cmt(pattern^1, function(_,i,s) --- return list[lower(s)] and i --- end) --- else --- local pattern = S(concat(words)) --- local list = { } --- for i=1,#words do --- list[words[i]] = true --- end --- return Cmt(pattern^1, function(_,i,s) --- return list[s] and i --- end) --- end --- end - --- experiment: - -local function make(t) - local p - local keys = sortedkeys(t) + elseif checked then + local keys=sortedkeys(list) for i=1,#keys do - local k = keys[i] - local v = t[k] - if not p then - if next(v) then - p = P(k) * make(v) - else - p = P(k) - end + local k=keys[i] + local v=list[k] + if p then + if k==v then + p=P(k)+p else - if next(v) then - p = p + P(k) * make(v) - else - p = p + P(k) - end - end - end - return p -end - -function lpeg.utfchartabletopattern(list) -- goes to util-lpg - local tree = { } - for i=1,#list do - local t = tree - for c in gmatch(list[i],".") do - if not t[c] then - t[c] = { } - end - t = t[c] + p=P(k)/v+p end - end - return make(tree) -end - --- inspect ( lpeg.utfchartabletopattern { --- utfchar(0x00A0), -- nbsp --- utfchar(0x2000), -- enquad --- utfchar(0x2001), -- emquad --- utfchar(0x2002), -- enspace --- utfchar(0x2003), -- emspace --- utfchar(0x2004), -- threeperemspace --- utfchar(0x2005), -- fourperemspace --- utfchar(0x2006), -- sixperemspace --- utfchar(0x2007), -- figurespace --- utfchar(0x2008), -- punctuationspace --- utfchar(0x2009), -- breakablethinspace --- utfchar(0x200A), -- hairspace --- utfchar(0x200B), -- zerowidthspace --- utfchar(0x202F), -- narrownobreakspace --- utfchar(0x205F), -- math thinspace --- } ) - --- a few handy ones: --- --- faster than find(str,"[\n\r]") when match and # > 7 and always faster when # > 3 - -patterns.containseol = lpeg.finder(eol) -- (1-eol)^0 * eol - --- The next pattern^n variant is based on an approach suggested --- by Roberto: constructing a big repetition in chunks. --- --- Being sparse is not needed, and only complicate matters and --- the number of redundant entries is not that large. - -local function nextstep(n,step,result) - local m = n % step -- mod(n,step) - local d = floor(n/step) -- div(n,step) - if d > 0 then - local v = V(tostring(step)) - local s = result.start - for i=1,d do - if s then - s = v * s - else - s = v - end + else + if k==v then + p=P(k) + else + p=P(k)/v end - result.start = s + end end - if step > 1 and result.start then - local v = V(tostring(step/2)) - result[tostring(step)] = v * v + else + local keys=sortedkeys(list) + for i=1,#keys do + local k=keys[i] + local v=list[k] + if p then + p=P(k)/v+p + else + p=P(k)/v + end end - if step > 0 then - return nextstep(m,step/2,result) + end + return p +end +local function make(t) + local p + local keys=sortedkeys(t) + for i=1,#keys do + local k=keys[i] + local v=t[k] + if not p then + if next(v) then + p=P(k)*make(v) + else + p=P(k) + end else - return result - end + if next(v) then + p=p+P(k)*make(v) + else + p=p+P(k) + end + end + end + return p +end +function lpeg.utfchartabletopattern(list) + local tree={} + for i=1,#list do + local t=tree + for c in gmatch(list[i],".") do + if not t[c] then + t[c]={} + end + t=t[c] + end + end + return make(tree) +end +patterns.containseol=lpeg.finder(eol) +local function nextstep(n,step,result) + local m=n%step + local d=floor(n/step) + if d>0 then + local v=V(tostring(step)) + local s=result.start + for i=1,d do + if s then + s=v*s + else + s=v + end + end + result.start=s + end + if step>1 and result.start then + local v=V(tostring(step/2)) + result[tostring(step)]=v*v + end + if step>0 then + return nextstep(m,step/2,result) + else + return result + end end - function lpeg.times(pattern,n) - return P(nextstep(n,2^16,{ "start", ["1"] = pattern })) + return P(nextstep(n,2^16,{ "start",["1"]=pattern })) end --- local p = lpeg.Cs((1 - lpeg.times(lpeg.P("AB"),25))^1) --- local s = "12" .. string.rep("AB",20) .. "34" .. string.rep("AB",30) .. "56" --- inspect(p) --- print(lpeg.match(p,s)) - end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-functions'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['l-functions']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -functions = functions or { } - +functions=functions or {} function functions.dummy() end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-string'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['l-string']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -local string = string -local sub, gmatch, format, char, byte, rep, lower = string.sub, string.gmatch, string.format, string.char, string.byte, string.rep, string.lower -local lpegmatch, patterns = lpeg.match, lpeg.patterns -local P, S, C, Ct, Cc, Cs = lpeg.P, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.Cs - --- Some functions are already defined in l-lpeg and maybe some from here will --- move there (unless we also expose caches). - --- if not string.split then --- --- function string.split(str,pattern) --- local t = { } --- if #str > 0 then --- local n = 1 --- for s in gmatch(str..pattern,"(.-)"..pattern) do --- t[n] = s --- n = n + 1 --- end --- end --- return t --- end --- --- end - --- function string.unquoted(str) --- return (gsub(str,"^([\"\'])(.*)%1$","%2")) -- interesting pattern --- end - -local unquoted = patterns.squote * C(patterns.nosquote) * patterns.squote - + patterns.dquote * C(patterns.nodquote) * patterns.dquote - +local string=string +local sub,gmatch,format,char,byte,rep,lower=string.sub,string.gmatch,string.format,string.char,string.byte,string.rep,string.lower +local lpegmatch,patterns=lpeg.match,lpeg.patterns +local P,S,C,Ct,Cc,Cs=lpeg.P,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.Cs +local unquoted=patterns.squote*C(patterns.nosquote)*patterns.squote+patterns.dquote*C(patterns.nodquote)*patterns.dquote function string.unquoted(str) - return lpegmatch(unquoted,str) or str + return lpegmatch(unquoted,str) or str end - --- print(string.unquoted("test")) --- print(string.unquoted([["t\"est"]])) --- print(string.unquoted([["t\"est"x]])) --- print(string.unquoted("\'test\'")) --- print(string.unquoted('"test"')) --- print(string.unquoted('"test"')) - function string.quoted(str) - return format("%q",str) -- always double quote + return format("%q",str) +end +function string.count(str,pattern) + local n=0 + for _ in gmatch(str,pattern) do + n=n+1 + end + return n +end +function string.limit(str,n,sentinel) + if #str>n then + sentinel=sentinel or "..." + return sub(str,1,(n-#sentinel))..sentinel + else + return str + end end - -function string.count(str,pattern) -- variant 3 - local n = 0 - for _ in gmatch(str,pattern) do -- not for utf - n = n + 1 - end - return n -end - -function string.limit(str,n,sentinel) -- not utf proof - if #str > n then - sentinel = sentinel or "..." - return sub(str,1,(n-#sentinel)) .. sentinel - else - return str - end -end - -local stripper = patterns.stripper -local collapser = patterns.collapser -local longtostring = patterns.longtostring - +local stripper=patterns.stripper +local collapser=patterns.collapser +local longtostring=patterns.longtostring function string.strip(str) - return lpegmatch(stripper,str) or "" + return lpegmatch(stripper,str) or "" end - function string.collapsespaces(str) - return lpegmatch(collapser,str) or "" + return lpegmatch(collapser,str) or "" end - function string.longtostring(str) - return lpegmatch(longtostring,str) or "" + return lpegmatch(longtostring,str) or "" end - --- function string.is_empty(str) --- return not find(str,"%S") --- end - -local pattern = P(" ")^0 * P(-1) - +local pattern=P(" ")^0*P(-1) function string.is_empty(str) - if str == "" then - return true - else - return lpegmatch(pattern,str) and true or false - end -end - --- if not string.escapedpattern then --- --- local patterns_escapes = { --- ["%"] = "%%", --- ["."] = "%.", --- ["+"] = "%+", ["-"] = "%-", ["*"] = "%*", --- ["["] = "%[", ["]"] = "%]", --- ["("] = "%(", [")"] = "%)", --- -- ["{"] = "%{", ["}"] = "%}" --- -- ["^"] = "%^", ["$"] = "%$", --- } --- --- local simple_escapes = { --- ["-"] = "%-", --- ["."] = "%.", --- ["?"] = ".", --- ["*"] = ".*", --- } --- --- function string.escapedpattern(str,simple) --- return (gsub(str,".",simple and simple_escapes or patterns_escapes)) --- end --- --- function string.topattern(str,lowercase,strict) --- if str == "" then --- return ".*" --- else --- str = gsub(str,".",simple_escapes) --- if lowercase then --- str = lower(str) --- end --- if strict then --- return "^" .. str .. "$" --- else --- return str --- end --- end --- end --- --- end - ---- needs checking - -local anything = patterns.anything -local allescapes = Cc("%") * S(".-+%?()[]*") -- also {} and ^$ ? -local someescapes = Cc("%") * S(".-+%()[]") -- also {} and ^$ ? -local matchescapes = Cc(".") * S("*?") -- wildcard and single match - -local pattern_a = Cs ( ( allescapes + anything )^0 ) -local pattern_b = Cs ( ( someescapes + matchescapes + anything )^0 ) -local pattern_c = Cs ( Cc("^") * ( someescapes + matchescapes + anything )^0 * Cc("$") ) - + if str=="" then + return true + else + return lpegmatch(pattern,str) and true or false + end +end +local anything=patterns.anything +local allescapes=Cc("%")*S(".-+%?()[]*") +local someescapes=Cc("%")*S(".-+%()[]") +local matchescapes=Cc(".")*S("*?") +local pattern_a=Cs ((allescapes+anything )^0 ) +local pattern_b=Cs ((someescapes+matchescapes+anything )^0 ) +local pattern_c=Cs (Cc("^")*(someescapes+matchescapes+anything )^0*Cc("$") ) function string.escapedpattern(str,simple) - return lpegmatch(simple and pattern_b or pattern_a,str) + return lpegmatch(simple and pattern_b or pattern_a,str) end - function string.topattern(str,lowercase,strict) - if str == "" then - return ".*" - elseif strict then - str = lpegmatch(pattern_c,str) - else - str = lpegmatch(pattern_b,str) - end - if lowercase then - return lower(str) - else - return str - end + if str=="" then + return ".*" + elseif strict then + str=lpegmatch(pattern_c,str) + else + str=lpegmatch(pattern_b,str) + end + if lowercase then + return lower(str) + else + return str + end end - --- print(string.escapedpattern("12+34*.tex",false)) --- print(string.escapedpattern("12+34*.tex",true)) --- print(string.topattern ("12+34*.tex",false,false)) --- print(string.topattern ("12+34*.tex",false,true)) - function string.valid(str,default) - return (type(str) == "string" and str ~= "" and str) or default or nil + return (type(str)=="string" and str~="" and str) or default or nil end - --- handy fallback - -string.itself = function(s) return s end - --- also handy (see utf variant) - -local pattern = Ct(C(1)^0) -- string and not utf ! - +string.itself=function(s) return s end +local pattern=Ct(C(1)^0) function string.totable(str) - return lpegmatch(pattern,str) + return lpegmatch(pattern,str) end - --- handy from within tex: - -local replacer = lpeg.replacer("@","%%") -- Watch the escaped % in lpeg! - +local replacer=lpeg.replacer("@","%%") function string.tformat(fmt,...) - return format(lpegmatch(replacer,fmt),...) + return format(lpegmatch(replacer,fmt),...) end - --- obsolete names: - -string.quote = string.quoted -string.unquote = string.unquoted +string.quote=string.quoted +string.unquote=string.unquoted end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-table'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['l-table']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -local type, next, tostring, tonumber, ipairs, select = type, next, tostring, tonumber, ipairs, select -local table, string = table, string -local concat, sort, insert, remove = table.concat, table.sort, table.insert, table.remove -local format, lower, dump = string.format, string.lower, string.dump -local getmetatable, setmetatable = getmetatable, setmetatable -local getinfo = debug.getinfo -local lpegmatch, patterns = lpeg.match, lpeg.patterns -local floor = math.floor - --- extra functions, some might go (when not used) - -local stripper = patterns.stripper - +local type,next,tostring,tonumber,ipairs,select=type,next,tostring,tonumber,ipairs,select +local table,string=table,string +local concat,sort,insert,remove=table.concat,table.sort,table.insert,table.remove +local format,lower,dump=string.format,string.lower,string.dump +local getmetatable,setmetatable=getmetatable,setmetatable +local getinfo=debug.getinfo +local lpegmatch,patterns=lpeg.match,lpeg.patterns +local floor=math.floor +local stripper=patterns.stripper function table.strip(tab) - local lst, l = { }, 0 - for i=1,#tab do - local s = lpegmatch(stripper,tab[i]) or "" - if s == "" then - -- skip this one - else - l = l + 1 - lst[l] = s - end + local lst,l={},0 + for i=1,#tab do + local s=lpegmatch(stripper,tab[i]) or "" + if s=="" then + else + l=l+1 + lst[l]=s end - return lst + end + return lst end - function table.keys(t) - if t then - local keys, k = { }, 0 - for key, _ in next, t do - k = k + 1 - keys[k] = key - end - return keys - else - return { } + if t then + local keys,k={},0 + for key,_ in next,t do + k=k+1 + keys[k]=key end + return keys + else + return {} + end end - local function compare(a,b) - local ta, tb = type(a), type(b) -- needed, else 11 < 2 - if ta == tb then - return a < b - else - return tostring(a) < tostring(b) - end + local ta,tb=type(a),type(b) + if ta==tb then + return a0 then + local n=0 + for _,v in next,t do + n=n+1 + end + if n==#t then + local tt,nt={},0 + for i=1,#t do + local v=t[i] + local tv=type(v) + if tv=="number" then + nt=nt+1 + if hexify then + tt[nt]=format("0x%04X",v) + else + tt[nt]=tostring(v) + end + elseif tv=="boolean" then + nt=nt+1 + tt[nt]=tostring(v) + elseif tv=="string" then + nt=nt+1 + tt[nt]=format("%q",v) + else + tt=nil + break end + end + return tt end - return t + end + return nil end - --- function table.imerge(t, ...) --- local lst, nt = { ... }, #t --- for i=1,#lst do --- local nst = lst[i] --- for j=1,#nst do --- nt = nt + 1 --- t[nt] = nst[j] --- end --- end --- return t --- end - -function table.imerge(t, ...) - local nt = #t - for i=1,select("#",...) do - local nst = select(i,...) - for j=1,#nst do - nt = nt + 1 - t[nt] = nst[j] +local propername=patterns.propername +local function dummy() end +local function do_serialize(root,name,depth,level,indexed) + if level>0 then + depth=depth.." " + if indexed then + handle(format("%s{",depth)) + else + local tn=type(name) + if tn=="number" then + if hexify then + handle(format("%s[0x%04X]={",depth,name)) + else + handle(format("%s[%s]={",depth,name)) end + elseif tn=="string" then + if noquotes and not reserved[name] and lpegmatch(propername,name) then + handle(format("%s%s={",depth,name)) + else + handle(format("%s[%q]={",depth,name)) + end + elseif tn=="boolean" then + handle(format("%s[%s]={",depth,tostring(name))) + else + handle(format("%s{",depth)) + end + end + end + if root and next(root) then + local first,last=nil,0 + if compact then + last=#root + for k=1,last do + if root[k]==nil then + last=k-1 + break + end + end + if last>0 then + first=1 + end + end + local sk=sortedkeys(root) + for i=1,#sk do + local k=sk[i] + local v=root[k] + local t,tk=type(v),type(k) + if compact and first and tk=="number" and k>=first and k<=last then + if t=="number" then + if hexify then + handle(format("%s 0x%04X,",depth,v)) + else + handle(format("%s %s,",depth,v)) + end + elseif t=="string" then + if reduce and tonumber(v) then + handle(format("%s %s,",depth,v)) + else + handle(format("%s %q,",depth,v)) + end + elseif t=="table" then + if not next(v) then + handle(format("%s {},",depth)) + elseif inline then + local st=simple_table(v) + if st then + handle(format("%s { %s },",depth,concat(st,", "))) + else + do_serialize(v,k,depth,level+1,true) + end + else + do_serialize(v,k,depth,level+1,true) + end + elseif t=="boolean" then + handle(format("%s %s,",depth,tostring(v))) + elseif t=="function" then + if functions then + handle(format('%s load(%q),',depth,dump(v))) + else + handle(format('%s "function",',depth)) + end + else + handle(format("%s %q,",depth,tostring(v))) + end + elseif k=="__p__" then + if false then + handle(format("%s __p__=nil,",depth)) + end + elseif t=="number" then + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=0x%04X,",depth,k,v)) + else + handle(format("%s [%s]=%s,",depth,k,v)) + end + elseif tk=="boolean" then + if hexify then + handle(format("%s [%s]=0x%04X,",depth,tostring(k),v)) + else + handle(format("%s [%s]=%s,",depth,tostring(k),v)) + end + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + if hexify then + handle(format("%s %s=0x%04X,",depth,k,v)) + else + handle(format("%s %s=%s,",depth,k,v)) + end + else + if hexify then + handle(format("%s [%q]=0x%04X,",depth,k,v)) + else + handle(format("%s [%q]=%s,",depth,k,v)) + end + end + elseif t=="string" then + if reduce and tonumber(v) then + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=%s,",depth,k,v)) + else + handle(format("%s [%s]=%s,",depth,k,v)) + end + elseif tk=="boolean" then + handle(format("%s [%s]=%s,",depth,tostring(k),v)) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s=%s,",depth,k,v)) + else + handle(format("%s [%q]=%s,",depth,k,v)) + end + else + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=%q,",depth,k,v)) + else + handle(format("%s [%s]=%q,",depth,k,v)) + end + elseif tk=="boolean" then + handle(format("%s [%s]=%q,",depth,tostring(k),v)) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s=%q,",depth,k,v)) + else + handle(format("%s [%q]=%q,",depth,k,v)) + end + end + elseif t=="table" then + if not next(v) then + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]={},",depth,k)) + else + handle(format("%s [%s]={},",depth,k)) + end + elseif tk=="boolean" then + handle(format("%s [%s]={},",depth,tostring(k))) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s={},",depth,k)) + else + handle(format("%s [%q]={},",depth,k)) + end + elseif inline then + local st=simple_table(v) + if st then + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", "))) + else + handle(format("%s [%s]={ %s },",depth,k,concat(st,", "))) + end + elseif tk=="boolean" then + handle(format("%s [%s]={ %s },",depth,tostring(k),concat(st,", "))) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s={ %s },",depth,k,concat(st,", "))) + else + handle(format("%s [%q]={ %s },",depth,k,concat(st,", "))) + end + else + do_serialize(v,k,depth,level+1) + end + else + do_serialize(v,k,depth,level+1) + end + elseif t=="boolean" then + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=%s,",depth,k,tostring(v))) + else + handle(format("%s [%s]=%s,",depth,k,tostring(v))) + end + elseif tk=="boolean" then + handle(format("%s [%s]=%s,",depth,tostring(k),tostring(v))) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s=%s,",depth,k,tostring(v))) + else + handle(format("%s [%q]=%s,",depth,k,tostring(v))) + end + elseif t=="function" then + if functions then + local f=getinfo(v).what=="C" and dump(dummy) or dump(v) + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=load(%q),",depth,k,f)) + else + handle(format("%s [%s]=load(%q),",depth,k,f)) + end + elseif tk=="boolean" then + handle(format("%s [%s]=load(%q),",depth,tostring(k),f)) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s=load(%q),",depth,k,f)) + else + handle(format("%s [%q]=load(%q),",depth,k,f)) + end + end + else + if tk=="number" then + if hexify then + handle(format("%s [0x%04X]=%q,",depth,k,tostring(v))) + else + handle(format("%s [%s]=%q,",depth,k,tostring(v))) + end + elseif tk=="boolean" then + handle(format("%s [%s]=%q,",depth,tostring(k),tostring(v))) + elseif noquotes and not reserved[k] and lpegmatch(propername,k) then + handle(format("%s %s=%q,",depth,k,tostring(v))) + else + handle(format("%s [%q]=%q,",depth,k,tostring(v))) + end + end + end + end + if level>0 then + handle(format("%s},",depth)) + end +end +local function serialize(_handle,root,name,specification) + local tname=type(name) + if type(specification)=="table" then + noquotes=specification.noquotes + hexify=specification.hexify + handle=_handle or specification.handle or print + reduce=specification.reduce or false + functions=specification.functions + compact=specification.compact + inline=specification.inline and compact + if functions==nil then + functions=true + end + if compact==nil then + compact=true + end + if inline==nil then + inline=compact + end + else + noquotes=false + hexify=false + handle=_handle or print + reduce=false + compact=true + inline=true + functions=true + end + if tname=="string" then + if name=="return" then + handle("return {") + else + handle(name.."={") end - return t + elseif tname=="number" then + if hexify then + handle(format("[0x%04X]={",name)) + else + handle("["..name.."]={") + end + elseif tname=="boolean" then + if name then + handle("return {") + else + handle("{") + end + else + handle("t={") + end + if root then + if getmetatable(root) then + local dummy=root._w_h_a_t_e_v_e_r_ + root._w_h_a_t_e_v_e_r_=nil + end + if next(root) then + do_serialize(root,name,"",0) + end + end + handle("}") end - --- function table.imerged(...) --- local tmp, ntmp, lst = { }, 0, {...} --- for i=1,#lst do --- local nst = lst[i] --- for j=1,#nst do --- ntmp = ntmp + 1 --- tmp[ntmp] = nst[j] --- end --- end --- return tmp --- end - -function table.imerged(...) - local tmp, ntmp = { }, 0 - for i=1,select("#",...) do - local nst = select(i,...) - for j=1,#nst do - ntmp = ntmp + 1 - tmp[ntmp] = nst[j] - end +function table.serialize(root,name,specification) + local t,n={},0 + local function flush(s) + n=n+1 + t[n]=s + end + serialize(flush,root,name,specification) + return concat(t,"\n") +end +table.tohandle=serialize +local maxtab=2*1024 +function table.tofile(filename,root,name,specification) + local f=io.open(filename,'w') + if f then + if maxtab>1 then + local t,n={},0 + local function flush(s) + n=n+1 + t[n]=s + if n>maxtab then + f:write(concat(t,"\n"),"\n") + t,n={},0 + end + end + serialize(flush,root,name,specification) + f:write(concat(t,"\n"),"\n") + else + local function flush(s) + f:write(s,"\n") + end + serialize(flush,root,name,specification) end - return tmp + f:close() + io.flush() + end end - -local function fastcopy(old,metatabletoo) -- fast one - if old then - local new = { } - for k, v in next, old do - if type(v) == "table" then - new[k] = fastcopy(v,metatabletoo) -- was just table.copy - else - new[k] = v - end - end - if metatabletoo then - -- optional second arg - local mt = getmetatable(old) - if mt then - setmetatable(new,mt) - end - end - return new +local function flattened(t,f,depth) + if f==nil then + f={} + depth=0xFFFF + elseif tonumber(f) then + depth=f + f={} + elseif not depth then + depth=0xFFFF + end + for k,v in next,t do + if type(k)~="number" then + if depth>0 and type(v)=="table" then + flattened(v,f,depth-1) + else + f[k]=v + end + end + end + local n=#f + for k=1,#t do + local v=t[k] + if depth>0 and type(v)=="table" then + flattened(v,f,depth-1) + n=#f + else + n=n+1 + f[n]=v + end + end + return f +end +table.flattened=flattened +local function unnest(t,f) + if not f then + f={} + end + for i=1,#t do + local v=t[i] + if type(v)=="table" then + if type(v[1])=="table" then + unnest(v,f) + else + f[#f+1]=v + end + else + f[#f+1]=v + end + end + return f +end +function table.unnest(t) + return unnest(t) +end +local function are_equal(a,b,n,m) + if a and b and #a==#b then + n=n or 1 + m=m or #a + for i=n,m do + local ai,bi=a[i],b[i] + if ai==bi then + elseif type(ai)=="table" and type(bi)=="table" then + if not are_equal(ai,bi) then + return false + end + else + return false + end + end + return true + else + return false + end +end +local function identical(a,b) + for ka,va in next,a do + local vb=b[ka] + if va==vb then + elseif type(va)=="table" and type(vb)=="table" then + if not identical(va,vb) then + return false + end else - return { } + return false end + end + return true end - --- todo : copy without metatable - -local function copy(t, tables) -- taken from lua wiki, slightly adapted - tables = tables or { } - local tcopy = {} - if not tables[t] then - tables[t] = tcopy - end - for i,v in next, t do -- brrr, what happens with sparse indexed - if type(i) == "table" then - if tables[i] then - i = tables[i] - else - i = copy(i, tables) - end - end - if type(v) ~= "table" then - tcopy[i] = v - elseif tables[v] then - tcopy[i] = tables[v] - else - tcopy[i] = copy(v, tables) - end +table.identical=identical +table.are_equal=are_equal +function table.compact(t) + if t then + for k,v in next,t do + if not next(v) then + t[k]=nil + end end - local mt = getmetatable(t) - if mt then - setmetatable(tcopy,mt) + end +end +function table.contains(t,v) + if t then + for i=1,#t do + if t[i]==v then + return i + end + end + end + return false +end +function table.count(t) + local n=0 + for k,v in next,t do + n=n+1 + end + return n +end +function table.swapped(t,s) + local n={} + if s then + for k,v in next,s do + n[k]=v + end + end + for k,v in next,t do + n[v]=k + end + return n +end +function table.mirrored(t) + local n={} + for k,v in next,t do + n[v]=k + n[k]=v + end + return n +end +function table.reversed(t) + if t then + local tt,tn={},#t + if tn>0 then + local ttn=0 + for i=tn,1,-1 do + ttn=ttn+1 + tt[ttn]=t[i] + end + end + return tt + end +end +function table.reverse(t) + if t then + local n=#t + for i=1,floor(n/2) do + local j=n-i+1 + t[i],t[j]=t[j],t[i] end - return tcopy + return t + end +end +function table.sequenced(t,sep) + if t then + local s,n={},0 + for k,v in sortedhash(t) do + if simple then + if v==true then + n=n+1 + s[n]=k + elseif v and v~="" then + n=n+1 + s[n]=k.."="..tostring(v) + end + else + n=n+1 + s[n]=k.."="..tostring(v) + end + end + return concat(s,sep or " | ") + else + return "" + end +end +function table.print(t,...) + if type(t)~="table" then + print(tostring(t)) + else + serialize(print,t,...) + end +end +setinspector(function(v) if type(v)=="table" then serialize(print,v,"table") return true end end) +function table.sub(t,i,j) + return { unpack(t,i,j) } end +function table.is_empty(t) + return not t or not next(t) +end +function table.has_one_entry(t) + return t and not next(t,next(t)) +end +function table.loweredkeys(t) + local l={} + for k,v in next,t do + l[lower(k)]=v + end + return l +end +function table.unique(old) + local hash={} + local new={} + local n=0 + for i=1,#old do + local oi=old[i] + if not hash[oi] then + n=n+1 + new[n]=oi + hash[oi]=true + end + end + return new +end +function table.sorted(t,...) + sort(t,...) + return t +end + +end -- closure -table.fastcopy = fastcopy -table.copy = copy +do -- begin closure to overcome local limits and interference -function table.derive(parent) -- for the moment not public - local child = { } - if parent then - setmetatable(child,{ __index = parent }) +if not modules then modules={} end modules ['l-io']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local io=io +local byte,find,gsub,format=string.byte,string.find,string.gsub,string.format +local concat=table.concat +local floor=math.floor +local type=type +if string.find(os.getenv("PATH"),";") then + io.fileseparator,io.pathseparator="\\",";" +else + io.fileseparator,io.pathseparator="/",":" +end +local function readall(f) + return f:read("*all") +end +local function readall(f) + local size=f:seek("end") + if size==0 then + return "" + elseif size<1024*1024 then + f:seek("set",0) + return f:read('*all') + else + local done=f:seek("set",0) + if size<1024*1024 then + step=1024*1024 + elseif size>16*1024*1024 then + step=16*1024*1024 + else + step=floor(size/(1024*1024))*1024*1024/8 end - return child + local data={} + while true do + local r=f:read(step) + if not r then + return concat(data) + else + data[#data+1]=r + end + end + end +end +io.readall=readall +function io.loaddata(filename,textmode) + local f=io.open(filename,(textmode and 'r') or 'rb') + if f then + local data=readall(f) + f:close() + if #data>0 then + return data + end + end end - -function table.tohash(t,value) - local h = { } - if t then - if value == nil then value = true end - for _, v in next, t do -- no ipairs here - h[v] = value - end +function io.savedata(filename,data,joiner) + local f=io.open(filename,"wb") + if f then + if type(data)=="table" then + f:write(concat(data,joiner or "")) + elseif type(data)=="function" then + data(f) + else + f:write(data or "") end - return h + f:close() + io.flush() + return true + else + return false + end +end +function io.loadlines(filename,n) + local f=io.open(filename,'r') + if not f then + elseif n then + local lines={} + for i=1,n do + local line=f:read("*lines") + if line then + lines[#lines+1]=line + else + break + end + end + f:close() + lines=concat(lines,"\n") + if #lines>0 then + return lines + end + else + local line=f:read("*line") or "" + f:close() + if #line>0 then + return line + end + end end - -function table.fromhash(t) - local hsh, h = { }, 0 - for k, v in next, t do -- no ipairs here - if v then - h = h + 1 - hsh[h] = k - end +function io.loadchunk(filename,n) + local f=io.open(filename,'rb') + if f then + local data=f:read(n or 1024) + f:close() + if #data>0 then + return data end - return hsh + end end - -local noquotes, hexify, handle, reduce, compact, inline, functions - -local reserved = table.tohash { -- intercept a language inconvenience: no reserved words as key - 'and', 'break', 'do', 'else', 'elseif', 'end', 'false', 'for', 'function', 'if', - 'in', 'local', 'nil', 'not', 'or', 'repeat', 'return', 'then', 'true', 'until', 'while', +function io.exists(filename) + local f=io.open(filename) + if f==nil then + return false + else + f:close() + return true + end +end +function io.size(filename) + local f=io.open(filename) + if f==nil then + return 0 + else + local s=f:seek("end") + f:close() + return s + end +end +function io.noflines(f) + if type(f)=="string" then + local f=io.open(filename) + if f then + local n=f and io.noflines(f) or 0 + f:close() + return n + else + return 0 + end + else + local n=0 + for _ in f:lines() do + n=n+1 + end + f:seek('set',0) + return n + end +end +local nextchar={ + [ 4]=function(f) + return f:read(1,1,1,1) + end, + [ 2]=function(f) + return f:read(1,1) + end, + [ 1]=function(f) + return f:read(1) + end, + [-2]=function(f) + local a,b=f:read(1,1) + return b,a + end, + [-4]=function(f) + local a,b,c,d=f:read(1,1,1,1) + return d,c,b,a + end } - -local function simple_table(t) - if #t > 0 then - local n = 0 - for _,v in next, t do - n = n + 1 - end - if n == #t then - local tt, nt = { }, 0 - for i=1,#t do - local v = t[i] - local tv = type(v) - if tv == "number" then - nt = nt + 1 - if hexify then - tt[nt] = format("0x%04X",v) - else - tt[nt] = tostring(v) -- tostring not needed - end - elseif tv == "boolean" then - nt = nt + 1 - tt[nt] = tostring(v) - elseif tv == "string" then - nt = nt + 1 - tt[nt] = format("%q",v) - else - tt = nil - break - end - end - return tt +function io.characters(f,n) + if f then + return nextchar[n or 1],f + end +end +local nextbyte={ + [4]=function(f) + local a,b,c,d=f:read(1,1,1,1) + if d then + return byte(a),byte(b),byte(c),byte(d) + end + end, + [3]=function(f) + local a,b,c=f:read(1,1,1) + if b then + return byte(a),byte(b),byte(c) + end + end, + [2]=function(f) + local a,b=f:read(1,1) + if b then + return byte(a),byte(b) + end + end, + [1]=function (f) + local a=f:read(1) + if a then + return byte(a) + end + end, + [-2]=function (f) + local a,b=f:read(1,1) + if b then + return byte(b),byte(a) + end + end, + [-3]=function(f) + local a,b,c=f:read(1,1,1) + if b then + return byte(c),byte(b),byte(a) + end + end, + [-4]=function(f) + local a,b,c,d=f:read(1,1,1,1) + if d then + return byte(d),byte(c),byte(b),byte(a) + end + end +} +function io.bytes(f,n) + if f then + return nextbyte[n or 1],f + else + return nil,nil + end +end +function io.ask(question,default,options) + while true do + io.write(question) + if options then + io.write(format(" [%s]",concat(options,"|"))) + end + if default then + io.write(format(" [%s]",default)) + end + io.write(format(" ")) + io.flush() + local answer=io.read() + answer=gsub(answer,"^%s*(.*)%s*$","%1") + if answer=="" and default then + return default + elseif not options then + return answer + else + for k=1,#options do + if options[k]==answer then + return answer + end + end + local pattern="^"..answer + for k=1,#options do + local v=options[k] + if find(v,pattern) then + return v end + end end - return nil + end end +local function readnumber(f,n,m) + if m then + f:seek("set",n) + n=m + end + if n==1 then + return byte(f:read(1)) + elseif n==2 then + local a,b=byte(f:read(2),1,2) + return 256*a+b + elseif n==3 then + local a,b,c=byte(f:read(3),1,3) + return 256*256*a+256*b+c + elseif n==4 then + local a,b,c,d=byte(f:read(4),1,4) + return 256*256*256*a+256*256*b+256*c+d + elseif n==8 then + local a,b=readnumber(f,4),readnumber(f,4) + return 256*a+b + elseif n==12 then + local a,b,c=readnumber(f,4),readnumber(f,4),readnumber(f,4) + return 256*256*a+256*b+c + elseif n==-2 then + local b,a=byte(f:read(2),1,2) + return 256*a+b + elseif n==-3 then + local c,b,a=byte(f:read(3),1,3) + return 256*256*a+256*b+c + elseif n==-4 then + local d,c,b,a=byte(f:read(4),1,4) + return 256*256*256*a+256*256*b+256*c+d + elseif n==-8 then + local h,g,f,e,d,c,b,a=byte(f:read(8),1,8) + return 256*256*256*256*256*256*256*a+256*256*256*256*256*256*b+256*256*256*256*256*c+256*256*256*256*d+256*256*256*e+256*256*f+256*g+h + else + return 0 + end +end +io.readnumber=readnumber +function io.readstring(f,n,m) + if m then + f:seek("set",n) + n=m + end + local str=gsub(f:read(n),"\000","") + return str +end +if not io.i_limiter then function io.i_limiter() end end +if not io.o_limiter then function io.o_limiter() end end --- Because this is a core function of mkiv I moved some function calls --- inline. --- --- twice as fast in a test: --- --- local propername = lpeg.P(lpeg.R("AZ","az","__") * lpeg.R("09","AZ","az", "__")^0 * lpeg.P(-1) ) - --- problem: there no good number_to_string converter with the best resolution - --- probably using .. is faster than format --- maybe split in a few cases (yes/no hexify) - --- todo: %g faster on numbers than %s - -local propername = patterns.propername -- was find(name,"^%a[%w%_]*$") +end -- closure -local function dummy() end +do -- begin closure to overcome local limits and interference -local function do_serialize(root,name,depth,level,indexed) - if level > 0 then - depth = depth .. " " - if indexed then - handle(format("%s{",depth)) - else - local tn = type(name) - if tn == "number" then - if hexify then - handle(format("%s[0x%04X]={",depth,name)) - else - handle(format("%s[%s]={",depth,name)) - end - elseif tn == "string" then - if noquotes and not reserved[name] and lpegmatch(propername,name) then - handle(format("%s%s={",depth,name)) - else - handle(format("%s[%q]={",depth,name)) - end - elseif tn == "boolean" then - handle(format("%s[%s]={",depth,tostring(name))) - else - handle(format("%s{",depth)) - end - end - end - -- we could check for k (index) being number (cardinal) - if root and next(root) then - -- local first, last = nil, 0 -- #root cannot be trusted here (will be ok in 5.2 when ipairs is gone) - -- if compact then - -- -- NOT: for k=1,#root do (we need to quit at nil) - -- for k,v in ipairs(root) do -- can we use next? - -- if not first then first = k end - -- last = last + 1 - -- end - -- end - local first, last = nil, 0 - if compact then - last = #root - for k=1,last do - if root[k] == nil then - last = k - 1 - break - end - end - if last > 0 then - first = 1 - end - end - local sk = sortedkeys(root) - for i=1,#sk do - local k = sk[i] - local v = root[k] - --~ if v == root then - -- circular - --~ else - local t, tk = type(v), type(k) - if compact and first and tk == "number" and k >= first and k <= last then - if t == "number" then - if hexify then - handle(format("%s 0x%04X,",depth,v)) - else - handle(format("%s %s,",depth,v)) -- %.99g - end - elseif t == "string" then - if reduce and tonumber(v) then - handle(format("%s %s,",depth,v)) - else - handle(format("%s %q,",depth,v)) - end - elseif t == "table" then - if not next(v) then - handle(format("%s {},",depth)) - elseif inline then -- and #t > 0 - local st = simple_table(v) - if st then - handle(format("%s { %s },",depth,concat(st,", "))) - else - do_serialize(v,k,depth,level+1,true) - end - else - do_serialize(v,k,depth,level+1,true) - end - elseif t == "boolean" then - handle(format("%s %s,",depth,tostring(v))) - elseif t == "function" then - if functions then - handle(format('%s load(%q),',depth,dump(v))) - else - handle(format('%s "function",',depth)) - end - else - handle(format("%s %q,",depth,tostring(v))) - end - elseif k == "__p__" then -- parent - if false then - handle(format("%s __p__=nil,",depth)) - end - elseif t == "number" then - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=0x%04X,",depth,k,v)) - else - handle(format("%s [%s]=%s,",depth,k,v)) -- %.99g - end - elseif tk == "boolean" then - if hexify then - handle(format("%s [%s]=0x%04X,",depth,tostring(k),v)) - else - handle(format("%s [%s]=%s,",depth,tostring(k),v)) -- %.99g - end - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - if hexify then - handle(format("%s %s=0x%04X,",depth,k,v)) - else - handle(format("%s %s=%s,",depth,k,v)) -- %.99g - end - else - if hexify then - handle(format("%s [%q]=0x%04X,",depth,k,v)) - else - handle(format("%s [%q]=%s,",depth,k,v)) -- %.99g - end - end - elseif t == "string" then - if reduce and tonumber(v) then - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=%s,",depth,k,v)) - else - handle(format("%s [%s]=%s,",depth,k,v)) - end - elseif tk == "boolean" then - handle(format("%s [%s]=%s,",depth,tostring(k),v)) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s=%s,",depth,k,v)) - else - handle(format("%s [%q]=%s,",depth,k,v)) - end - else - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=%q,",depth,k,v)) - else - handle(format("%s [%s]=%q,",depth,k,v)) - end - elseif tk == "boolean" then - handle(format("%s [%s]=%q,",depth,tostring(k),v)) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s=%q,",depth,k,v)) - else - handle(format("%s [%q]=%q,",depth,k,v)) - end - end - elseif t == "table" then - if not next(v) then - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]={},",depth,k)) - else - handle(format("%s [%s]={},",depth,k)) - end - elseif tk == "boolean" then - handle(format("%s [%s]={},",depth,tostring(k))) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s={},",depth,k)) - else - handle(format("%s [%q]={},",depth,k)) - end - elseif inline then - local st = simple_table(v) - if st then - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", "))) - else - handle(format("%s [%s]={ %s },",depth,k,concat(st,", "))) - end - elseif tk == "boolean" then - handle(format("%s [%s]={ %s },",depth,tostring(k),concat(st,", "))) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s={ %s },",depth,k,concat(st,", "))) - else - handle(format("%s [%q]={ %s },",depth,k,concat(st,", "))) - end - else - do_serialize(v,k,depth,level+1) - end - else - do_serialize(v,k,depth,level+1) - end - elseif t == "boolean" then - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=%s,",depth,k,tostring(v))) - else - handle(format("%s [%s]=%s,",depth,k,tostring(v))) - end - elseif tk == "boolean" then - handle(format("%s [%s]=%s,",depth,tostring(k),tostring(v))) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s=%s,",depth,k,tostring(v))) - else - handle(format("%s [%q]=%s,",depth,k,tostring(v))) - end - elseif t == "function" then - if functions then - local f = getinfo(v).what == "C" and dump(dummy) or dump(v) - -- local f = getinfo(v).what == "C" and dump(function(...) return v(...) end) or dump(v) - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=load(%q),",depth,k,f)) - else - handle(format("%s [%s]=load(%q),",depth,k,f)) - end - elseif tk == "boolean" then - handle(format("%s [%s]=load(%q),",depth,tostring(k),f)) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s=load(%q),",depth,k,f)) - else - handle(format("%s [%q]=load(%q),",depth,k,f)) - end - end - else - if tk == "number" then - if hexify then - handle(format("%s [0x%04X]=%q,",depth,k,tostring(v))) - else - handle(format("%s [%s]=%q,",depth,k,tostring(v))) - end - elseif tk == "boolean" then - handle(format("%s [%s]=%q,",depth,tostring(k),tostring(v))) - elseif noquotes and not reserved[k] and lpegmatch(propername,k) then - handle(format("%s %s=%q,",depth,k,tostring(v))) - else - handle(format("%s [%q]=%q,",depth,k,tostring(v))) - end - end - --~ end - end - end - if level > 0 then - handle(format("%s},",depth)) +if not modules then modules={} end modules ['l-file']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +file=file or {} +local file=file +if not lfs then + lfs={ + getcurrentdir=function() + return "." + end, + attributes=function() + return nil + end, + isfile=function(name) + local f=io.open(name,'rb') + if f then + f:close() + return true + end + end, + isdir=function(name) + print("you need to load lfs") + return false end + } +elseif not lfs.isfile then + local attributes=lfs.attributes + function lfs.isdir(name) + return attributes(name,"mode")=="directory" + end + function lfs.isfile(name) + return attributes(name,"mode")=="file" + end +end +local insert,concat=table.insert,table.concat +local match=string.match +local lpegmatch=lpeg.match +local getcurrentdir,attributes=lfs.currentdir,lfs.attributes +local checkedsplit=string.checkedsplit +local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct +local colon=P(":") +local period=P(".") +local periods=P("..") +local fwslash=P("/") +local bwslash=P("\\") +local slashes=S("\\/") +local noperiod=1-period +local noslashes=1-slashes +local name=noperiod^1 +local suffix=period/""*(1-period-slashes)^1*-1 +local pattern=C((1-(slashes^1*noslashes^1*-1))^1)*P(1) +local function pathpart(name,default) + return name and lpegmatch(pattern,name) or default or "" end - --- replacing handle by a direct t[#t+1] = ... (plus test) is not much --- faster (0.03 on 1.00 for zapfino.tma) - -local function serialize(_handle,root,name,specification) -- handle wins - local tname = type(name) - if type(specification) == "table" then - noquotes = specification.noquotes - hexify = specification.hexify - handle = _handle or specification.handle or print - reduce = specification.reduce or false - functions = specification.functions - compact = specification.compact - inline = specification.inline and compact - if functions == nil then - functions = true - end - if compact == nil then - compact = true - end - if inline == nil then - inline = compact - end - else - noquotes = false - hexify = false - handle = _handle or print - reduce = false - compact = true - inline = true - functions = true - end - if tname == "string" then - if name == "return" then - handle("return {") - else - handle(name .. "={") - end - elseif tname == "number" then - if hexify then - handle(format("[0x%04X]={",name)) - else - handle("[" .. name .. "]={") - end - elseif tname == "boolean" then - if name then - handle("return {") - else - handle("{") - end +local pattern=(noslashes^0*slashes)^1*C(noslashes^1)*-1 +local function basename(name) + return name and lpegmatch(pattern,name) or name +end +local pattern=(noslashes^0*slashes^1)^0*Cs((1-suffix)^1)*suffix^0 +local function nameonly(name) + return name and lpegmatch(pattern,name) or name +end +local pattern=(noslashes^0*slashes)^0*(noperiod^1*period)^1*C(noperiod^1)*-1 +local function suffixonly(name) + return name and lpegmatch(pattern,name) or "" +end +file.pathpart=pathpart +file.basename=basename +file.nameonly=nameonly +file.suffixonly=suffixonly +file.suffix=suffixonly +file.dirname=pathpart +file.extname=suffixonly +local drive=C(R("az","AZ"))*colon +local path=C((noslashes^0*slashes)^0) +local suffix=period*C(P(1-period)^0*P(-1)) +local base=C((1-suffix)^0) +local rest=C(P(1)^0) +drive=drive+Cc("") +path=path+Cc("") +base=base+Cc("") +suffix=suffix+Cc("") +local pattern_a=drive*path*base*suffix +local pattern_b=path*base*suffix +local pattern_c=C(drive*path)*C(base*suffix) +local pattern_d=path*rest +function file.splitname(str,splitdrive) + if not str then + elseif splitdrive then + return lpegmatch(pattern_a,str) + else + return lpegmatch(pattern_b,str) + end +end +function file.splitbase(str) + return str and lpegmatch(pattern_d,str) +end +function file.nametotable(str,splitdrive) + if str then + local path,drive,subpath,name,base,suffix=lpegmatch(pattern_c,str) + if splitdrive then + return { + path=path, + drive=drive, + subpath=subpath, + name=name, + base=base, + suffix=suffix, + } else - handle("t={") + return { + path=path, + name=name, + base=base, + suffix=suffix, + } end - if root then - -- The dummy access will initialize a table that has a delayed initialization - -- using a metatable. (maybe explicitly test for metatable) - if getmetatable(root) then -- todo: make this an option, maybe even per subtable - local dummy = root._w_h_a_t_e_v_e_r_ - root._w_h_a_t_e_v_e_r_ = nil + end +end +local pattern=Cs(((period*(1-period-slashes)^1*-1)/""+1)^1) +function file.removesuffix(name) + return name and lpegmatch(pattern,name) +end +local suffix=period/""*(1-period-slashes)^1*-1 +local pattern=Cs((noslashes^0*slashes^1)^0*((1-suffix)^1))*Cs(suffix) +function file.addsuffix(filename,suffix,criterium) + if not filename or not suffix or suffix=="" then + return filename + elseif criterium==true then + return filename.."."..suffix + elseif not criterium then + local n,s=lpegmatch(pattern,filename) + if not s or s=="" then + return filename.."."..suffix + else + return filename + end + else + local n,s=lpegmatch(pattern,filename) + if s and s~="" then + local t=type(criterium) + if t=="table" then + for i=1,#criterium do + if s==criterium[i] then + return filename + end end - -- Let's forget about empty tables. - if next(root) then - do_serialize(root,name,"",0) + elseif t=="string" then + if s==criterium then + return filename end + end end - handle("}") + return (n or filename).."."..suffix + end end - --- name: --- --- true : return { } --- false : { } --- nil : t = { } --- string : string = { } --- "return" : return { } --- number : [number] = { } - -function table.serialize(root,name,specification) - local t, n = { }, 0 - local function flush(s) - n = n + 1 - t[n] = s - end - serialize(flush,root,name,specification) - return concat(t,"\n") +local suffix=period*(1-period-slashes)^1*-1 +local pattern=Cs((1-suffix)^0) +function file.replacesuffix(name,suffix) + if name and suffix and suffix~="" then + return lpegmatch(pattern,name).."."..suffix + else + return name + end end - -table.tohandle = serialize - --- sometimes tables are real use (zapfino extra pro is some 85M) in which --- case a stepwise serialization is nice; actually, we could consider: --- --- for line in table.serializer(root,name,reduce,noquotes) do --- ...(line) --- end --- --- so this is on the todo list - -local maxtab = 2*1024 - -function table.tofile(filename,root,name,specification) - local f = io.open(filename,'w') - if f then - if maxtab > 1 then - local t, n = { }, 0 - local function flush(s) - n = n + 1 - t[n] = s - if n > maxtab then - f:write(concat(t,"\n"),"\n") -- hm, write(sometable) should be nice - t, n = { }, 0 -- we could recycle t if needed - end - end - serialize(flush,root,name,specification) - f:write(concat(t,"\n"),"\n") - else - local function flush(s) - f:write(s,"\n") - end - serialize(flush,root,name,specification) - end - f:close() - io.flush() - end +local reslasher=lpeg.replacer(P("\\"),"/") +function file.reslash(str) + return str and lpegmatch(reslasher,str) end - -local function flattened(t,f,depth) - if f == nil then - f = { } - depth = 0xFFFF - elseif tonumber(f) then - -- assume that only two arguments are given - depth = f - f = { } - elseif not depth then - depth = 0xFFFF - end - for k, v in next, t do - if type(k) ~= "number" then - if depth > 0 and type(v) == "table" then - flattened(v,f,depth-1) - else - f[k] = v - end - end - end - local n = #f - for k=1,#t do - local v = t[k] - if depth > 0 and type(v) == "table" then - flattened(v,f,depth-1) - n = #f - else - n = n + 1 - f[n] = v - end +function file.is_writable(name) + if not name then + elseif lfs.isdir(name) then + name=name.."/m_t_x_t_e_s_t.tmp" + local f=io.open(name,"wb") + if f then + f:close() + os.remove(name) + return true end - return f -end - -table.flattened = flattened - -local function unnest(t,f) -- only used in mk, for old times sake - if not f then -- and only relevant for token lists - f = { } -- this one can become obsolete + elseif lfs.isfile(name) then + local f=io.open(name,"ab") + if f then + f:close() + return true end - for i=1,#t do - local v = t[i] - if type(v) == "table" then - if type(v[1]) == "table" then - unnest(v,f) - else - f[#f+1] = v - end - else - f[#f+1] = v - end + else + local f=io.open(name,"ab") + if f then + f:close() + os.remove(name) + return true end - return f + end + return false end - -function table.unnest(t) -- bad name - return unnest(t) +local readable=P("r")*Cc(true) +function file.is_readable(name) + if name then + local a=attributes(name) + return a and lpegmatch(readable,a.permissions) or false + else + return false + end end - -local function are_equal(a,b,n,m) -- indexed - if a and b and #a == #b then - n = n or 1 - m = m or #a - for i=n,m do - local ai, bi = a[i], b[i] - if ai==bi then - -- same - elseif type(ai) == "table" and type(bi) == "table" then - if not are_equal(ai,bi) then - return false - end - else - return false - end - end - return true +file.isreadable=file.is_readable +file.iswritable=file.is_writable +function file.size(name) + if name then + local a=attributes(name) + return a and a.size or 0 + else + return 0 + end +end +function file.splitpath(str,separator) + return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator) +end +function file.joinpath(tab,separator) + return tab and concat(tab,separator or io.pathseparator) +end +local stripper=Cs(P(fwslash)^0/""*reslasher) +local isnetwork=fwslash*fwslash*(1-fwslash)+(1-fwslash-colon)^1*colon +local isroot=fwslash^1*-1 +local hasroot=fwslash^1 +local deslasher=lpeg.replacer(S("\\/")^1,"/") +function file.join(...) + local lst={... } + local one=lst[1] + if lpegmatch(isnetwork,one) then + local two=lpegmatch(deslasher,concat(lst,"/",2)) + return one.."/"..two + elseif lpegmatch(isroot,one) then + local two=lpegmatch(deslasher,concat(lst,"/",2)) + if lpegmatch(hasroot,two) then + return two else - return false - end -end - -local function identical(a,b) -- assumes same structure - for ka, va in next, a do - local vb = b[ka] - if va == vb then - -- same - elseif type(va) == "table" and type(vb) == "table" then - if not identical(va,vb) then - return false - end + return "/"..two + end + elseif one=="" then + return lpegmatch(stripper,concat(lst,"/",2)) + else + return lpegmatch(deslasher,concat(lst,"/")) + end +end +local drivespec=R("az","AZ")^1*colon +local anchors=fwslash+drivespec +local untouched=periods+(1-period)^1*P(-1) +local splitstarter=(Cs(drivespec*(bwslash/"/"+fwslash)^0)+Cc(false))*Ct(lpeg.splitat(S("/\\")^1)) +local absolute=fwslash +function file.collapsepath(str,anchor) + if not str then + return + end + if anchor and not lpegmatch(anchors,str) then + str=getcurrentdir().."/"..str + end + if str=="" or str=="." then + return "." + elseif lpegmatch(untouched,str) then + return lpegmatch(reslasher,str) + end + local starter,oldelements=lpegmatch(splitstarter,str) + local newelements={} + local i=#oldelements + while i>0 do + local element=oldelements[i] + if element=='.' then + elseif element=='..' then + local n=i-1 + while n>0 do + local element=oldelements[n] + if element~='..' and element~='.' then + oldelements[n]='.' + break else - return false - end + n=n-1 + end + end + if n<1 then + insert(newelements,1,'..') + end + elseif element~="" then + insert(newelements,1,element) + end + i=i-1 + end + if #newelements==0 then + return starter or "." + elseif starter then + return starter..concat(newelements,'/') + elseif lpegmatch(absolute,str) then + return "/"..concat(newelements,'/') + else + return concat(newelements,'/') + end +end +local validchars=R("az","09","AZ","--","..") +local pattern_a=lpeg.replacer(1-validchars) +local pattern_a=Cs((validchars+P(1)/"-")^1) +local whatever=P("-")^0/"" +local pattern_b=Cs(whatever*(1-whatever*-1)^1) +function file.robustname(str,strict) + if str then + str=lpegmatch(pattern_a,str) or str + if strict then + return lpegmatch(pattern_b,str) or str + else + return str end - return true + end end - -table.identical = identical -table.are_equal = are_equal - --- maybe also make a combined one - -function table.compact(t) -- remove empty tables, assumes subtables - if t then - for k, v in next, t do - if not next(v) then -- no type checking - t[k] = nil - end - end - end +file.readdata=io.loaddata +file.savedata=io.savedata +function file.copy(oldname,newname) + if oldname and newname then + file.savedata(newname,io.loaddata(oldname)) + end +end +local letter=R("az","AZ")+S("_-+") +local separator=P("://") +local qualified=period^0*fwslash+letter*colon+letter^1*separator+letter^1*fwslash +local rootbased=fwslash+letter*colon +lpeg.patterns.qualified=qualified +lpeg.patterns.rootbased=rootbased +function file.is_qualified_path(filename) + return filename and lpegmatch(qualified,filename)~=nil end - -function table.contains(t, v) - if t then - for i=1, #t do - if t[i] == v then - return i - end - end - end - return false +function file.is_rootbased_path(filename) + return filename and lpegmatch(rootbased,filename)~=nil end - -function table.count(t) - local n = 0 - for k, v in next, t do - n = n + 1 - end - return n +function file.strip(name,dir) + if name then + local b,a=match(name,"^(.-)"..dir.."(.*)$") + return a~="" and a or name + end end -function table.swapped(t,s) -- hash - local n = { } - if s then - for k, v in next, s do - n[k] = v - end - end - for k, v in next, t do - n[v] = k - end - return n -end +end -- closure -function table.mirrored(t) -- hash - local n = { } - for k, v in next, t do - n[v] = k - n[k] = v - end - return n -end +do -- begin closure to overcome local limits and interference -function table.reversed(t) - if t then - local tt, tn = { }, #t - if tn > 0 then - local ttn = 0 - for i=tn,1,-1 do - ttn = ttn + 1 - tt[ttn] = t[i] - end - end - return tt - end +if not modules then modules={} end modules ['l-boolean']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local type,tonumber=type,tonumber +boolean=boolean or {} +local boolean=boolean +function boolean.tonumber(b) + if b then return 1 else return 0 end end - -function table.reverse(t) - if t then - local n = #t - for i=1,floor(n/2) do - local j = n - i + 1 - t[i], t[j] = t[j], t[i] - end - return t - end +function toboolean(str,tolerant) + if str==nil then + return false + elseif str==false then + return false + elseif str==true then + return true + elseif str=="true" then + return true + elseif str=="false" then + return false + elseif not tolerant then + return false + elseif str==0 then + return false + elseif (tonumber(str) or 0)>0 then + return true + else + return str=="yes" or str=="on" or str=="t" + end end - -function table.sequenced(t,sep) -- hash only - if t then - local s, n = { }, 0 - for k, v in sortedhash(t) do - if simple then - if v == true then - n = n + 1 - s[n] = k - elseif v and v~= "" then - n = n + 1 - s[n] = k .. "=" .. tostring(v) - end - else - n = n + 1 - s[n] = k .. "=" .. tostring(v) - end - end - return concat(s, sep or " | ") - else - return "" - end +string.toboolean=toboolean +function string.booleanstring(str) + if str==nil then + return false + elseif str==false then + return false + elseif str==true then + return true + elseif str=="true" then + return true + elseif str=="false" then + return false + elseif str==0 then + return false + elseif (tonumber(str) or 0)>0 then + return true + else + return str=="yes" or str=="on" or str=="t" + end end - -function table.print(t,...) - if type(t) ~= "table" then - print(tostring(t)) - else - serialize(print,t,...) +function string.is_boolean(str,default) + if type(str)=="string" then + if str=="true" or str=="yes" or str=="on" or str=="t" then + return true + elseif str=="false" or str=="no" or str=="off" or str=="f" then + return false end + end + return default end -setinspector(function(v) if type(v) == "table" then serialize(print,v,"table") return true end end) - --- -- -- obsolete but we keep them for a while and might comment them later -- -- -- - --- roughly: copy-loop : unpack : sub == 0.9 : 0.4 : 0.45 (so in critical apps, use unpack) - -function table.sub(t,i,j) - return { unpack(t,i,j) } -end +end -- closure --- slower than #t on indexed tables (#t only returns the size of the numerically indexed slice) +do -- begin closure to overcome local limits and interference -function table.is_empty(t) - return not t or not next(t) +if not modules then modules={} end modules ['l-math']={ + version=1.001, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local floor,sin,cos,tan=math.floor,math.sin,math.cos,math.tan +if not math.round then + function math.round(x) return floor(x+0.5) end end - -function table.has_one_entry(t) - return t and not next(t,next(t)) +if not math.div then + function math.div(n,m) return floor(n/m) end end - --- new - -function table.loweredkeys(t) -- maybe utf - local l = { } - for k, v in next, t do - l[lower(k)] = v - end - return l +if not math.mod then + function math.mod(n,m) return n%m end end - --- new, might move (maybe duplicate) - -function table.unique(old) - local hash = { } - local new = { } - local n = 0 - for i=1,#old do - local oi = old[i] - if not hash[oi] then - n = n + 1 - new[n] = oi - hash[oi] = true - end - end - return new +local pipi=2*math.pi/360 +if not math.sind then + function math.sind(d) return sin(d*pipi) end + function math.cosd(d) return cos(d*pipi) end + function math.tand(d) return tan(d*pipi) end end - -function table.sorted(t,...) - sort(t,...) - return t -- still sorts in-place +if not math.odd then + function math.odd (n) return n%2~=0 end + function math.even(n) return n%2==0 end end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-boolean'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luat-basics-gen']={ + version=1.100, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -local type, tonumber = type, tonumber - -boolean = boolean or { } -local boolean = boolean - -function boolean.tonumber(b) - if b then return 1 else return 0 end -- test and return or return +if context then + texio.write_nl("fatal error: this module is not for context") + os.exit() +end +local dummyfunction=function() end +local dummyreporter=function(c) return function(...) texio.write(c.." : "..string.format(...)) end end +statistics={ + register=dummyfunction, + starttiming=dummyfunction, + stoptiming=dummyfunction, + elapsedtime=nil, +} +directives={ + register=dummyfunction, + enable=dummyfunction, + disable=dummyfunction, +} +trackers={ + register=dummyfunction, + enable=dummyfunction, + disable=dummyfunction, +} +experiments={ + register=dummyfunction, + enable=dummyfunction, + disable=dummyfunction, +} +storage={ + register=dummyfunction, + shared={}, +} +logs={ + new=dummyreporter, + reporter=dummyreporter, + messenger=dummyreporter, + report=dummyfunction, +} +callbacks={ + register=function(n,f) return callback.register(n,f) end, +} +utilities={ + storage={ + allocate=function(t) return t or {} end, + mark=function(t) return t or {} end, + }, +} +characters=characters or { + data={} +} +texconfig.kpse_init=true +resolvers=resolvers or {} +local remapper={ + otf="opentype fonts", + ttf="truetype fonts", + ttc="truetype fonts", + dfont="truetype fonts", + cid="cid maps", + cidmap="cid maps", + fea="font feature files", + pfa="type1 fonts", + pfb="type1 fonts", +} +function resolvers.findfile(name,fileformat) + name=string.gsub(name,"\\","/") + if not fileformat or fileformat=="" then + fileformat=file.suffix(name) + if fileformat=="" then + fileformat="tex" + end + end + fileformat=string.lower(fileformat) + fileformat=remapper[fileformat] or fileformat + local found=kpse.find_file(name,fileformat) + if not found or found=="" then + found=kpse.find_file(name,"other text files") + end + return found +end +resolvers.findbinfile=resolvers.findfile +function resolvers.resolve(s) + return s end - -function toboolean(str,tolerant) - if str == nil then - return false - elseif str == false then - return false - elseif str == true then - return true - elseif str == "true" then - return true - elseif str == "false" then - return false - elseif not tolerant then - return false - elseif str == 0 then - return false - elseif (tonumber(str) or 0) > 0 then - return true - else - return str == "yes" or str == "on" or str == "t" - end +function resolvers.unresolve(s) + return s end - -string.toboolean = toboolean - -function string.booleanstring(str) - if str == nil then - return false - elseif str == false then - return false - elseif str == true then - return true - elseif str == "true" then - return true - elseif str == "false" then - return false - elseif str == 0 then - return false - elseif (tonumber(str) or 0) > 0 then - return true - else - return str == "yes" or str == "on" or str == "t" +caches={} +local writable,readables=nil,{} +if not caches.namespace or caches.namespace=="" or caches.namespace=="context" then + caches.namespace='generic' +end +do + local cachepaths=kpse.expand_path('$TEXMFCACHE') or "" + if cachepaths=="" then + cachepaths=kpse.expand_path('$TEXMFVAR') + end + if cachepaths=="" then + cachepaths=kpse.expand_path('$VARTEXMF') + end + if cachepaths=="" then + cachepaths="." + end + cachepaths=string.split(cachepaths,os.type=="windows" and ";" or ":") + for i=1,#cachepaths do + if file.is_writable(cachepaths[i]) then + writable=file.join(cachepaths[i],"luatex-cache") + lfs.mkdir(writable) + writable=file.join(writable,caches.namespace) + lfs.mkdir(writable) + break + end + end + for i=1,#cachepaths do + if file.is_readable(cachepaths[i]) then + readables[#readables+1]=file.join(cachepaths[i],"luatex-cache",caches.namespace) + end + end + if not writable then + texio.write_nl("quiting: fix your writable cache path") + os.exit() + elseif #readables==0 then + texio.write_nl("quiting: fix your readable cache path") + os.exit() + elseif #readables==1 and readables[1]==writable then + texio.write(string.format("(using cache: %s)",writable)) + else + texio.write(string.format("(using write cache: %s)",writable)) + texio.write(string.format("(using read cache: %s)",table.concat(readables," "))) + end +end +function caches.getwritablepath(category,subcategory) + local path=file.join(writable,category) + lfs.mkdir(path) + path=file.join(path,subcategory) + lfs.mkdir(path) + return path +end +function caches.getreadablepaths(category,subcategory) + local t={} + for i=1,#readables do + t[i]=file.join(readables[i],category,subcategory) + end + return t +end +local function makefullname(path,name) + if path and path~="" then + name="temp-"..name + return file.addsuffix(file.join(path,name),"lua"),file.addsuffix(file.join(path,name),"luc") + end +end +function caches.is_writable(path,name) + local fullname=makefullname(path,name) + return fullname and file.is_writable(fullname) +end +function caches.loaddata(paths,name) + for i=1,#paths do + local data=false + local luaname,lucname=makefullname(paths[i],name) + if lucname and lfs.isfile(lucname) then + texio.write(string.format("(load: %s)",lucname)) + data=loadfile(lucname) end + if not data and luaname and lfs.isfile(luaname) then + texio.write(string.format("(load: %s)",luaname)) + data=loadfile(luaname) + end + return data and data() + end end - -function string.is_boolean(str,default) - if type(str) == "string" then - if str == "true" or str == "yes" or str == "on" or str == "t" then - return true - elseif str == "false" or str == "no" or str == "off" or str == "f" then - return false - end +function caches.savedata(path,name,data) + local luaname,lucname=makefullname(path,name) + if luaname then + texio.write(string.format("(save: %s)",luaname)) + table.tofile(luaname,data,true,{ reduce=true }) + if lucname and type(caches.compile)=="function" then + os.remove(lucname) + texio.write(string.format("(save: %s)",lucname)) + caches.compile(data,luaname,lucname) + end + end +end +caches.compilemethod="luac" +function caches.compile(data,luaname,lucname) + local done=false + if caches.compilemethod=="luac" or caches.compilemethod=="both" then + local command="-o "..string.quoted(lucname).." -s "..string.quoted(luaname) + done=os.spawn("texluac "..command)==0 + end + if not done and (caches.compilemethod=="dump" or caches.compilemethod=="both") then + local d=table.serialize(data,true) + if d and d~="" then + local f=io.open(lucname,'w') + if f then + local s=loadstring(d) + f:write(string.dump(s)) + f:close() + end end - return default + end +end +function table.setmetatableindex(t,f) + setmetatable(t,{ __index=f }) end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-math'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['data-con']={ + version=1.100, + comment="companion to luat-lib.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -local floor, sin, cos, tan = math.floor, math.sin, math.cos, math.tan - -if not math.round then - function math.round(x) return floor(x + 0.5) end +local format,lower,gsub=string.format,string.lower,string.gsub +local trace_cache=false trackers.register("resolvers.cache",function(v) trace_cache=v end) +local trace_containers=false trackers.register("resolvers.containers",function(v) trace_containers=v end) +local trace_storage=false trackers.register("resolvers.storage",function(v) trace_storage=v end) +containers=containers or {} +local containers=containers +containers.usecache=true +local report_containers=logs.reporter("resolvers","containers") +local function report(container,tag,name) + if trace_cache or trace_containers then + report_containers("container: %s, tag: %s, name: %s",container.subcategory,tag,name or 'invalid') + end +end +local allocated={} +local mt={ + __index=function(t,k) + if k=="writable" then + local writable=caches.getwritablepath(t.category,t.subcategory) or { "." } + t.writable=writable + return writable + elseif k=="readables" then + local readables=caches.getreadablepaths(t.category,t.subcategory) or { "." } + t.readables=readables + return readables + end + end, + __storage__=true +} +function containers.define(category,subcategory,version,enabled) + if category and subcategory then + local c=allocated[category] + if not c then + c={} + allocated[category]=c + end + local s=c[subcategory] + if not s then + s={ + category=category, + subcategory=subcategory, + storage={}, + enabled=enabled, + version=version or math.pi, + trace=false, + } + setmetatable(s,mt) + c[subcategory]=s + end + return s + end end - -if not math.div then - function math.div(n,m) return floor(n/m) end +function containers.is_usable(container,name) + return container.enabled and caches and caches.is_writable(container.writable,name) end - -if not math.mod then - function math.mod(n,m) return n % m end +function containers.is_valid(container,name) + if name and name~="" then + local storage=container.storage[name] + return storage and storage.cache_version==container.version + else + return false + end end - -local pipi = 2*math.pi/360 - -if not math.sind then - function math.sind(d) return sin(d*pipi) end - function math.cosd(d) return cos(d*pipi) end - function math.tand(d) return tan(d*pipi) end +function containers.read(container,name) + local storage=container.storage + local stored=storage[name] + if not stored and container.enabled and caches and containers.usecache then + stored=caches.loaddata(container.readables,name) + if stored and stored.cache_version==container.version then + report(container,"loaded",name) + else + stored=nil + end + storage[name]=stored + elseif stored then + report(container,"reusing",name) + end + return stored +end +function containers.write(container,name,data) + if data then + data.cache_version=container.version + if container.enabled and caches then + local unique,shared=data.unique,data.shared + data.unique,data.shared=nil,nil + caches.savedata(container.writable,name,data) + report(container,"saved",name) + data.unique,data.shared=unique,shared + end + report(container,"stored",name) + container.storage[name]=data + end + return data end - -if not math.odd then - function math.odd (n) return n % 2 ~= 0 end - function math.even(n) return n % 2 == 0 end +function containers.content(container,name) + return container.storage[name] +end +function containers.cleanname(name) + return (gsub(lower(name),"[^%w%d]+","-")) end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-file'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luatex-fonts-nod']={ + version=1.001, + comment="companion to luatex-fonts.lua", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - --- needs a cleanup - -file = file or { } -local file = file - -if not lfs then - - lfs = { - getcurrentdir = function() - return "." - end, - attributes = function() - return nil - end, - isfile = function(name) - local f = io.open(name,'rb') - if f then - f:close() - return true - end - end, - isdir = function(name) - print("you need to load lfs") - return false - end - } - -elseif not lfs.isfile then - - local attributes = lfs.attributes - - function lfs.isdir(name) - return attributes(name,"mode") == "directory" - end - - function lfs.isfile(name) - return attributes(name,"mode") == "file" +if context then + texio.write_nl("fatal error: this module is not for context") + os.exit() +end +if tex.attribute[0]~=0 then + texio.write_nl("log","!") + texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be") + texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special") + texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.") + texio.write_nl("log","!") + tex.attribute[0]=0 +end +attributes={} +attributes.unsetvalue=-0x7FFFFFFF +local numbers,last={},127 +function attributes.private(name) + local number=numbers[name] + if not number then + if last<255 then + last=last+1 + end + number=last + numbers[name]=number + end + return number +end +nodes={} +nodes.pool={} +nodes.handlers={} +local nodecodes={} for k,v in next,node.types () do nodecodes[string.gsub(v,"_","")]=k end +local whatcodes={} for k,v in next,node.whatsits() do whatcodes[string.gsub(v,"_","")]=k end +local glyphcodes={ [0]="character","glyph","ligature","ghost","left","right" } +nodes.nodecodes=nodecodes +nodes.whatcodes=whatcodes +nodes.whatsitcodes=whatcodes +nodes.glyphcodes=glyphcodes +local free_node=node.free +local remove_node=node.remove +local new_node=node.new +local traverse_id=node.traverse_id +local math_code=nodecodes.math +nodes.handlers.protectglyphs=node.protect_glyphs +nodes.handlers.unprotectglyphs=node.unprotect_glyphs +function nodes.remove(head,current,free_too) + local t=current + head,current=remove_node(head,current) + if t then + if free_too then + free_node(t) + t=nil + else + t.next,t.prev=nil,nil end - - -- function lfs.isdir(name) - -- local a = attributes(name) - -- return a and a.mode == "directory" - -- end - - -- function lfs.isfile(name) - -- local a = attributes(name) - -- return a and a.mode == "file" - -- end - -end - -local insert, concat = table.insert, table.concat -local match = string.match -local lpegmatch = lpeg.match -local getcurrentdir, attributes = lfs.currentdir, lfs.attributes -local checkedsplit = string.checkedsplit - --- local patterns = file.patterns or { } --- file.patterns = patterns - -local P, R, S, C, Cs, Cp, Cc, Ct = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Cs, lpeg.Cp, lpeg.Cc, lpeg.Ct - -local colon = P(":") -local period = P(".") -local periods = P("..") -local fwslash = P("/") -local bwslash = P("\\") -local slashes = S("\\/") -local noperiod = 1-period -local noslashes = 1-slashes -local name = noperiod^1 -local suffix = period/"" * (1-period-slashes)^1 * -1 - ------ pattern = C((noslashes^0 * slashes^1)^1) -local pattern = C((1 - (slashes^1 * noslashes^1 * -1))^1) * P(1) -- there must be a more efficient way - -local function pathpart(name,default) - return name and lpegmatch(pattern,name) or default or "" + end + return head,current,t end - -local pattern = (noslashes^0 * slashes)^1 * C(noslashes^1) * -1 - -local function basename(name) - return name and lpegmatch(pattern,name) or name +function nodes.delete(head,current) + return nodes.remove(head,current,true) end - --- print(pathpart("file")) --- print(pathpart("dir/file")) --- print(pathpart("/dir/file")) --- print(basename("file")) --- print(basename("dir/file")) --- print(basename("/dir/file")) - -local pattern = (noslashes^0 * slashes^1)^0 * Cs((1-suffix)^1) * suffix^0 - -local function nameonly(name) - return name and lpegmatch(pattern,name) or name +nodes.before=node.insert_before +nodes.after=node.insert_after +function nodes.pool.kern(k) + local n=new_node("kern",1) + n.kern=k + return n end - -local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * C(noperiod^1) * -1 - -local function suffixonly(name) - return name and lpegmatch(pattern,name) or "" +function nodes.endofmath(n) + for n in traverse_id(math_code,n.next) do + return n + end end -file.pathpart = pathpart -file.basename = basename -file.nameonly = nameonly -file.suffixonly = suffixonly -file.suffix = suffixonly - -file.dirname = pathpart -- obsolete -file.extname = suffixonly -- obsolete +end -- closure --- actually these are schemes +do -- begin closure to overcome local limits and interference -local drive = C(R("az","AZ")) * colon -local path = C((noslashes^0 * slashes)^0) -local suffix = period * C(P(1-period)^0 * P(-1)) -local base = C((1-suffix)^0) -local rest = C(P(1)^0) +if not modules then modules={} end modules ['font-ini']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local allocate=utilities.storage.allocate +local report_defining=logs.reporter("fonts","defining") +fonts=fonts or {} +local fonts=fonts +fonts.hashes={ identifiers=allocate() } +fonts.tables=fonts.tables or {} +fonts.helpers=fonts.helpers or {} +fonts.tracers=fonts.tracers or {} +fonts.specifiers=fonts.specifiers or {} +fonts.analyzers={} +fonts.readers={} +fonts.definers={ methods={} } +fonts.loggers={ register=function() end } +fontloader.totable=fontloader.to_table -drive = drive + Cc("") -path = path + Cc("") -base = base + Cc("") -suffix = suffix + Cc("") +end -- closure -local pattern_a = drive * path * base * suffix -local pattern_b = path * base * suffix -local pattern_c = C(drive * path) * C(base * suffix) -- trick: two extra captures -local pattern_d = path * rest +do -- begin closure to overcome local limits and interference -function file.splitname(str,splitdrive) - if not str then - -- error - elseif splitdrive then - return lpegmatch(pattern_a,str) -- returns drive, path, base, suffix +if not modules then modules={} end modules ['font-con']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local next,tostring,rawget=next,tostring,rawget +local format,match,lower,gsub=string.format,string.match,string.lower,string.gsub +local utfbyte=utf.byte +local sort,insert,concat,sortedkeys,serialize,fastcopy=table.sort,table.insert,table.concat,table.sortedkeys,table.serialize,table.fastcopy +local derivetable=table.derive +local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end) +local trace_scaling=false trackers.register("fonts.scaling",function(v) trace_scaling=v end) +local report_defining=logs.reporter("fonts","defining") +local fonts=fonts +local constructors=fonts.constructors or {} +fonts.constructors=constructors +local handlers=fonts.handlers or {} +fonts.handlers=handlers +local specifiers=fonts.specifiers +local contextsetups=specifiers.contextsetups +local contextnumbers=specifiers.contextnumbers +local allocate=utilities.storage.allocate +local setmetatableindex=table.setmetatableindex +constructors.dontembed=allocate() +constructors.autocleanup=true +constructors.namemode="fullpath" +constructors.version=1.01 +constructors.cache=containers.define("fonts","constructors",constructors.version,false) +constructors.privateoffset=0xF0000 +constructors.keys={ + properties={ + encodingbytes="number", + embedding="number", + cidinfo={}, + format="string", + fontname="string", + fullname="string", + filename="filename", + psname="string", + name="string", + virtualized="boolean", + hasitalics="boolean", + autoitalicamount="basepoints", + nostackmath="boolean", + noglyphnames="boolean", + mode="string", + hasmath="boolean", + mathitalics="boolean", + textitalics="boolean", + finalized="boolean", + }, + parameters={ + mathsize="number", + scriptpercentage="float", + scriptscriptpercentage="float", + units="cardinal", + designsize="scaledpoints", + expansion={ + stretch="integerscale", + shrink="integerscale", + step="integerscale", + auto="boolean", + }, + protrusion={ + auto="boolean", + }, + slantfactor="float", + extendfactor="float", + factor="float", + hfactor="float", + vfactor="float", + size="scaledpoints", + units="scaledpoints", + scaledpoints="scaledpoints", + slantperpoint="scaledpoints", + spacing={ + width="scaledpoints", + stretch="scaledpoints", + shrink="scaledpoints", + extra="scaledpoints", + }, + xheight="scaledpoints", + quad="scaledpoints", + ascender="scaledpoints", + descender="scaledpoints", + synonyms={ + space="spacing.width", + spacestretch="spacing.stretch", + spaceshrink="spacing.shrink", + extraspace="spacing.extra", + x_height="xheight", + space_stretch="spacing.stretch", + space_shrink="spacing.shrink", + extra_space="spacing.extra", + em="quad", + ex="xheight", + slant="slantperpoint", + }, + }, + description={ + width="basepoints", + height="basepoints", + depth="basepoints", + boundingbox={}, + }, + character={ + width="scaledpoints", + height="scaledpoints", + depth="scaledpoints", + italic="scaledpoints", + }, +} +local designsizes=allocate() +constructors.designsizes=designsizes +local loadedfonts=allocate() +constructors.loadedfonts=loadedfonts +local factors={ + pt=65536.0, + bp=65781.8, +} +function constructors.setfactor(f) + constructors.factor=factors[f or 'pt'] or factors.pt +end +constructors.setfactor() +function constructors.scaled(scaledpoints,designsize) + if scaledpoints<0 then + if designsize then + local factor=constructors.factor + if designsize>factor then + return (- scaledpoints/1000)*designsize + else + return (- scaledpoints/1000)*designsize*factor + end else - return lpegmatch(pattern_b,str) -- returns path, base, suffix + return (- scaledpoints/1000)*10*factor end + else + return scaledpoints + end end - -function file.splitbase(str) - return str and lpegmatch(pattern_d,str) -- returns path, base+suffix +function constructors.cleanuptable(tfmdata) + if constructors.autocleanup and tfmdata.properties.virtualized then + for k,v in next,tfmdata.characters do + if v.commands then v.commands=nil end + end + end end - ----- stripslash = C((1 - P("/")^1*P(-1))^0) - -function file.nametotable(str,splitdrive) - if str then - local path, drive, subpath, name, base, suffix = lpegmatch(pattern_c,str) - -- if path ~= "" then - -- path = lpegmatch(stripslash,path) -- unfortunate hack, maybe this becomes default - -- end - if splitdrive then - return { - path = path, - drive = drive, - subpath = subpath, - name = name, - base = base, - suffix = suffix, +function constructors.calculatescale(tfmdata,scaledpoints) + local parameters=tfmdata.parameters + if scaledpoints<0 then + scaledpoints=(- scaledpoints/1000)*(tfmdata.designsize or parameters.designsize) + end + return scaledpoints,scaledpoints/(parameters.units or 1000) +end +local unscaled={ + ScriptPercentScaleDown=true, + ScriptScriptPercentScaleDown=true, + RadicalDegreeBottomRaisePercent=true +} +function constructors.assignmathparameters(target,original) + local mathparameters=original.mathparameters + if mathparameters and next(mathparameters) then + local targetparameters=target.parameters + local targetproperties=target.properties + local targetmathparameters={} + local factor=targetproperties.math_is_scaled and 1 or targetparameters.factor + for name,value in next,mathparameters do + if unscaled[name] then + targetmathparameters[name]=value + else + targetmathparameters[name]=value*factor + end + end + if not targetmathparameters.FractionDelimiterSize then + targetmathparameters.FractionDelimiterSize=1.01*targetparameters.size + end + if not mathparameters.FractionDelimiterDisplayStyleSize then + targetmathparameters.FractionDelimiterDisplayStyleSize=2.40*targetparameters.size + end + target.mathparameters=targetmathparameters + end +end +function constructors.beforecopyingcharacters(target,original) +end +function constructors.aftercopyingcharacters(target,original) +end +function constructors.enhanceparameters(parameters) + local xheight=parameters.x_height + local quad=parameters.quad + local space=parameters.space + local stretch=parameters.space_stretch + local shrink=parameters.space_shrink + local extra=parameters.extra_space + local slant=parameters.slant + parameters.xheight=xheight + parameters.spacestretch=stretch + parameters.spaceshrink=shrink + parameters.extraspace=extra + parameters.em=quad + parameters.ex=xheight + parameters.slantperpoint=slant + parameters.spacing={ + width=space, + stretch=stretch, + shrink=shrink, + extra=extra, + } +end +function constructors.scale(tfmdata,specification) + local target={} + if tonumber(specification) then + specification={ size=specification } + end + local scaledpoints=specification.size + local relativeid=specification.relativeid + local properties=tfmdata.properties or {} + local goodies=tfmdata.goodies or {} + local resources=tfmdata.resources or {} + local descriptions=tfmdata.descriptions or {} + local characters=tfmdata.characters or {} + local changed=tfmdata.changed or {} + local shared=tfmdata.shared or {} + local parameters=tfmdata.parameters or {} + local mathparameters=tfmdata.mathparameters or {} + local targetcharacters={} + local targetdescriptions=derivetable(descriptions) + local targetparameters=derivetable(parameters) + local targetproperties=derivetable(properties) + local targetgoodies=goodies + target.characters=targetcharacters + target.descriptions=targetdescriptions + target.parameters=targetparameters + target.properties=targetproperties + target.goodies=targetgoodies + target.shared=shared + target.resources=resources + target.unscaled=tfmdata + local mathsize=tonumber(specification.mathsize) or 0 + local textsize=tonumber(specification.textsize) or scaledpoints + local forcedsize=tonumber(parameters.mathsize ) or 0 + local extrafactor=tonumber(specification.factor ) or 1 + if (mathsize==2 or forcedsize==2) and parameters.scriptpercentage then + scaledpoints=parameters.scriptpercentage*textsize/100 + elseif (mathsize==3 or forcedsize==3) and parameters.scriptscriptpercentage then + scaledpoints=parameters.scriptscriptpercentage*textsize/100 + elseif forcedsize>1000 then + scaledpoints=forcedsize + end + targetparameters.mathsize=mathsize + targetparameters.textsize=textsize + targetparameters.forcedsize=forcedsize + targetparameters.extrafactor=extrafactor + local tounicode=resources.tounicode + local defaultwidth=resources.defaultwidth or 0 + local defaultheight=resources.defaultheight or 0 + local defaultdepth=resources.defaultdepth or 0 + local units=parameters.units or 1000 + if target.fonts then + target.fonts=fastcopy(target.fonts) + end + targetproperties.language=properties.language or "dflt" + targetproperties.script=properties.script or "dflt" + targetproperties.mode=properties.mode or "base" + local askedscaledpoints=scaledpoints + local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints) + local hdelta=delta + local vdelta=delta + target.designsize=parameters.designsize + target.units_per_em=units + local direction=properties.direction or tfmdata.direction or 0 + target.direction=direction + properties.direction=direction + target.size=scaledpoints + target.encodingbytes=properties.encodingbytes or 1 + target.embedding=properties.embedding or "subset" + target.tounicode=1 + target.cidinfo=properties.cidinfo + target.format=properties.format + local fontname=properties.fontname or tfmdata.fontname + local fullname=properties.fullname or tfmdata.fullname + local filename=properties.filename or tfmdata.filename + local psname=properties.psname or tfmdata.psname + local name=properties.name or tfmdata.name + if not psname or psname=="" then + psname=fontname or (fullname and fonts.names.cleanname(fullname)) + end + target.fontname=fontname + target.fullname=fullname + target.filename=filename + target.psname=psname + target.name=name + properties.fontname=fontname + properties.fullname=fullname + properties.filename=filename + properties.psname=psname + properties.name=name + local expansion=parameters.expansion + if expansion then + target.stretch=expansion.stretch + target.shrink=expansion.shrink + target.step=expansion.step + target.auto_expand=expansion.auto + end + local protrusion=parameters.protrusion + if protrusion then + target.auto_protrude=protrusion.auto + end + local extendfactor=parameters.extendfactor or 0 + if extendfactor~=0 and extendfactor~=1 then + hdelta=hdelta*extendfactor + target.extend=extendfactor*1000 + else + target.extend=1000 + end + local slantfactor=parameters.slantfactor or 0 + if slantfactor~=0 then + target.slant=slantfactor*1000 + else + target.slant=0 + end + targetparameters.factor=delta + targetparameters.hfactor=hdelta + targetparameters.vfactor=vdelta + targetparameters.size=scaledpoints + targetparameters.units=units + targetparameters.scaledpoints=askedscaledpoints + local isvirtual=properties.virtualized or tfmdata.type=="virtual" + local hasquality=target.auto_expand or target.auto_protrude + local hasitalics=properties.hasitalics + local autoitalicamount=properties.autoitalicamount + local stackmath=not properties.nostackmath + local nonames=properties.noglyphnames + local nodemode=properties.mode=="node" + if changed and not next(changed) then + changed=false + end + target.type=isvirtual and "virtual" or "real" + target.postprocessors=tfmdata.postprocessors + local targetslant=(parameters.slant or parameters[1] or 0) + local targetspace=(parameters.space or parameters[2] or 0)*hdelta + local targetspace_stretch=(parameters.space_stretch or parameters[3] or 0)*hdelta + local targetspace_shrink=(parameters.space_shrink or parameters[4] or 0)*hdelta + local targetx_height=(parameters.x_height or parameters[5] or 0)*vdelta + local targetquad=(parameters.quad or parameters[6] or 0)*hdelta + local targetextra_space=(parameters.extra_space or parameters[7] or 0)*hdelta + targetparameters.slant=targetslant + targetparameters.space=targetspace + targetparameters.space_stretch=targetspace_stretch + targetparameters.space_shrink=targetspace_shrink + targetparameters.x_height=targetx_height + targetparameters.quad=targetquad + targetparameters.extra_space=targetextra_space + local ascender=parameters.ascender + if ascender then + targetparameters.ascender=delta*ascender + end + local descender=parameters.descender + if descender then + targetparameters.descender=delta*descender + end + constructors.enhanceparameters(targetparameters) + local protrusionfactor=(targetquad~=0 and 1000/targetquad) or 0 + local scaledwidth=defaultwidth*hdelta + local scaledheight=defaultheight*vdelta + local scaleddepth=defaultdepth*vdelta + if trace_defining then + report_defining("scaling by (%s,%s): name '%s', fullname: '%s', filename: '%s'", + hdelta,vdelta,name or "noname",fullname or "nofullname",filename or "nofilename") + end + local hasmath=(properties.hasmath or next(mathparameters)) and true + if hasmath then + if trace_defining then + report_defining("math enabled for: name '%s', fullname: '%s', filename: '%s'", + name or "noname",fullname or "nofullname",filename or "nofilename") + end + constructors.assignmathparameters(target,tfmdata) + properties.hasmath=true + target.nomath=false + target.MathConstants=target.mathparameters + else + if trace_defining then + report_defining("math disabled for: name '%s', fullname: '%s', filename: '%s'", + name or "noname",fullname or "nofullname",filename or "nofilename") + end + properties.hasmath=false + target.nomath=true + target.mathparameters=nil + end + local italickey="italic" + if hasmath then + autoitalicamount=false + else + if properties.textitalics then + italickey="italic_correction" + if trace_defining then + report_defining("text italics disabled for: name '%s', fullname: '%s', filename: '%s'", + name or "noname",fullname or "nofullname",filename or "nofilename") + end + if properties.delaytextitalics then + autoitalicamount=false + end + end + end + constructors.beforecopyingcharacters(target,tfmdata) + local sharedkerns={} + for unicode,character in next,characters do + local chr,description,index,touni + if changed then + local c=changed[unicode] + if c then + description=descriptions[c] or descriptions[unicode] or character + character=characters[c] or character + index=description.index or c + if tounicode then + touni=tounicode[index] + if not touni then + local d=descriptions[unicode] or characters[unicode] + local i=d.index or unicode + touni=tounicode[i] + end + end + else + description=descriptions[unicode] or character + index=description.index or unicode + if tounicode then + touni=tounicode[index] + end + end + else + description=descriptions[unicode] or character + index=description.index or unicode + if tounicode then + touni=tounicode[index] + end + end + local width=description.width + local height=description.height + local depth=description.depth + if width then width=hdelta*width else width=scaledwidth end + if height then height=vdelta*height else height=scaledheight end + if depth and depth~=0 then + depth=delta*depth + if nonames then + chr={ + index=index, + height=height, + depth=depth, + width=width, + } + else + chr={ + name=description.name, + index=index, + height=height, + depth=depth, + width=width, + } + end + else + if nonames then + chr={ + index=index, + height=height, + width=width, + } + else + chr={ + name=description.name, + index=index, + height=height, + width=width, + } + end + end + if touni then + chr.tounicode=touni + end + if hasquality then + local ve=character.expansion_factor + if ve then + chr.expansion_factor=ve*1000 + end + local vl=character.left_protruding + if vl then + chr.left_protruding=protrusionfactor*width*vl + end + local vr=character.right_protruding + if vr then + chr.right_protruding=protrusionfactor*width*vr + end + end + if autoitalicamount then + local vi=description.italic + if not vi then + local vi=description.boundingbox[3]-description.width+autoitalicamount + if vi>0 then + chr[italickey]=vi*hdelta + end + elseif vi~=0 then + chr[italickey]=vi*hdelta + end + elseif hasitalics then + local vi=description.italic + if vi and vi~=0 then + chr[italickey]=vi*hdelta + end + end + if hasmath then + local vn=character.next + if vn then + chr.next=vn + else + local vv=character.vert_variants + if vv then + local t={} + for i=1,#vv do + local vvi=vv[i] + t[i]={ + ["start"]=(vvi["start"] or 0)*vdelta, + ["end"]=(vvi["end"] or 0)*vdelta, + ["advance"]=(vvi["advance"] or 0)*vdelta, + ["extender"]=vvi["extender"], + ["glyph"]=vvi["glyph"], } + end + chr.vert_variants=t else - return { - path = path, - name = name, - base = base, - suffix = suffix, - } + local hv=character.horiz_variants + if hv then + local t={} + for i=1,#hv do + local hvi=hv[i] + t[i]={ + ["start"]=(hvi["start"] or 0)*hdelta, + ["end"]=(hvi["end"] or 0)*hdelta, + ["advance"]=(hvi["advance"] or 0)*hdelta, + ["extender"]=hvi["extender"], + ["glyph"]=hvi["glyph"], + } + end + chr.horiz_variants=t + end + end + end + local va=character.top_accent + if va then + chr.top_accent=vdelta*va + end + if stackmath then + local mk=character.mathkerns + if mk then + local kerns={} + local v=mk.top_right if v then local k={} for i=1,#v do local vi=v[i] + k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern } + end kerns.top_right=k end + local v=mk.top_left if v then local k={} for i=1,#v do local vi=v[i] + k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern } + end kerns.top_left=k end + local v=mk.bottom_left if v then local k={} for i=1,#v do local vi=v[i] + k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern } + end kerns.bottom_left=k end + local v=mk.bottom_right if v then local k={} for i=1,#v do local vi=v[i] + k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern } + end kerns.bottom_right=k end + chr.mathkern=kerns + end + end + end + if not nodemode then + local vk=character.kerns + if vk then + local s=sharedkerns[vk] + if not s then + s={} + for k,v in next,vk do s[k]=v*hdelta end + sharedkerns[vk]=s + end + chr.kerns=s + end + local vl=character.ligatures + if vl then + if true then + chr.ligatures=vl + else + local tt={} + for i,l in next,vl do + tt[i]=l + end + chr.ligatures=tt + end + end + end + if isvirtual then + local vc=character.commands + if vc then + local ok=false + for i=1,#vc do + local key=vc[i][1] + if key=="right" or key=="down" then + ok=true + break + end + end + if ok then + local tt={} + for i=1,#vc do + local ivc=vc[i] + local key=ivc[1] + if key=="right" then + tt[i]={ key,ivc[2]*hdelta } + elseif key=="down" then + tt[i]={ key,ivc[2]*vdelta } + elseif key=="rule" then + tt[i]={ key,ivc[2]*vdelta,ivc[3]*hdelta } + else + tt[i]=ivc + end + end + chr.commands=tt + else + chr.commands=vc end + chr.index=nil + end end + targetcharacters[unicode]=chr + end + constructors.aftercopyingcharacters(target,tfmdata) + return target end - --- print(file.splitname("file")) --- print(file.splitname("dir/file")) --- print(file.splitname("/dir/file")) --- print(file.splitname("file")) --- print(file.splitname("dir/file")) --- print(file.splitname("/dir/file")) - --- inspect(file.nametotable("file.ext")) --- inspect(file.nametotable("dir/file.ext")) --- inspect(file.nametotable("/dir/file.ext")) --- inspect(file.nametotable("file.ext")) --- inspect(file.nametotable("dir/file.ext")) --- inspect(file.nametotable("/dir/file.ext")) - ------ pattern = Cs(((period * noperiod^1 * -1) / "" + 1)^1) -local pattern = Cs(((period * (1-period-slashes)^1 * -1) / "" + 1)^1) - -function file.removesuffix(name) - return name and lpegmatch(pattern,name) +function constructors.finalize(tfmdata) + if tfmdata.properties and tfmdata.properties.finalized then + return + end + if not tfmdata.characters then + return nil + end + if not tfmdata.goodies then + tfmdata.goodies={} + end + local parameters=tfmdata.parameters + if not parameters then + return nil + end + if not parameters.expansion then + parameters.expansion={ + stretch=tfmdata.stretch or 0, + shrink=tfmdata.shrink or 0, + step=tfmdata.step or 0, + auto=tfmdata.auto_expand or false, + } + end + if not parameters.protrusion then + parameters.protrusion={ + auto=auto_protrude + } + end + if not parameters.size then + parameters.size=tfmdata.size + end + if not parameters.extendfactor then + parameters.extendfactor=tfmdata.extend or 0 + end + if not parameters.slantfactor then + parameters.slantfactor=tfmdata.slant or 0 + end + if not parameters.designsize then + parameters.designsize=tfmdata.designsize or 655360 + end + if not parameters.units then + parameters.units=tfmdata.units_per_em or 1000 + end + if not tfmdata.descriptions then + local descriptions={} + setmetatableindex(descriptions,function(t,k) local v={} t[k]=v return v end) + tfmdata.descriptions=descriptions + end + local properties=tfmdata.properties + if not properties then + properties={} + tfmdata.properties=properties + end + if not properties.virtualized then + properties.virtualized=tfmdata.type=="virtual" + end + if not tfmdata.properties then + tfmdata.properties={ + fontname=tfmdata.fontname, + filename=tfmdata.filename, + fullname=tfmdata.fullname, + name=tfmdata.name, + psname=tfmdata.psname, + encodingbytes=tfmdata.encodingbytes or 1, + embedding=tfmdata.embedding or "subset", + tounicode=tfmdata.tounicode or 1, + cidinfo=tfmdata.cidinfo or nil, + format=tfmdata.format or "type1", + direction=tfmdata.direction or 0, + } + end + if not tfmdata.resources then + tfmdata.resources={} + end + if not tfmdata.shared then + tfmdata.shared={} + end + if not properties.hasmath then + properties.hasmath=not tfmdata.nomath + end + tfmdata.MathConstants=nil + tfmdata.postprocessors=nil + tfmdata.fontname=nil + tfmdata.filename=nil + tfmdata.fullname=nil + tfmdata.name=nil + tfmdata.psname=nil + tfmdata.encodingbytes=nil + tfmdata.embedding=nil + tfmdata.tounicode=nil + tfmdata.cidinfo=nil + tfmdata.format=nil + tfmdata.direction=nil + tfmdata.type=nil + tfmdata.nomath=nil + tfmdata.designsize=nil + tfmdata.size=nil + tfmdata.stretch=nil + tfmdata.shrink=nil + tfmdata.step=nil + tfmdata.auto_expand=nil + tfmdata.auto_protrude=nil + tfmdata.extend=nil + tfmdata.slant=nil + tfmdata.units_per_em=nil + properties.finalized=true + return tfmdata +end +local hashmethods={} +constructors.hashmethods=hashmethods +function constructors.hashfeatures(specification) + local features=specification.features + if features then + local t,tn={},0 + for category,list in next,features do + if next(list) then + local hasher=hashmethods[category] + if hasher then + local hash=hasher(list) + if hash then + tn=tn+1 + t[tn]=category..":"..hash + end + end + end + end + if tn>0 then + return concat(t," & ") + end + end + return "unknown" +end +hashmethods.normal=function(list) + local s={} + local n=0 + for k,v in next,list do + if k~="number" and k~="features" then + n=n+1 + s[n]=k + end + end + if n>0 then + sort(s) + for i=1,n do + local k=s[i] + s[i]=k..'='..tostring(list[k]) + end + return concat(s,"+") + end end - --- local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * Cp() * noperiod^1 * -1 --- --- function file.addsuffix(name, suffix) --- local p = lpegmatch(pattern,name) --- if p then --- return name --- else --- return name .. "." .. suffix --- end --- end - -local suffix = period/"" * (1-period-slashes)^1 * -1 -local pattern = Cs((noslashes^0 * slashes^1)^0 * ((1-suffix)^1)) * Cs(suffix) - -function file.addsuffix(filename,suffix,criterium) - if not filename or not suffix or suffix == "" then - return filename - elseif criterium == true then - return filename .. "." .. suffix - elseif not criterium then - local n, s = lpegmatch(pattern,filename) - if not s or s == "" then - return filename .. "." .. suffix - else - return filename - end +function constructors.hashinstance(specification,force) + local hash,size,fallbacks=specification.hash,specification.size,specification.fallbacks + if force or not hash then + hash=constructors.hashfeatures(specification) + specification.hash=hash + end + if size<1000 and designsizes[hash] then + size=math.round(constructors.scaled(size,designsizes[hash])) + specification.size=size + end + if fallbacks then + return hash..' @ '..tostring(size)..' @ '..fallbacks else - local n, s = lpegmatch(pattern,filename) - if s and s ~= "" then - local t = type(criterium) - if t == "table" then - -- keep if in criterium - for i=1,#criterium do - if s == criterium[i] then - return filename - end - end - elseif t == "string" then - -- keep if criterium - if s == criterium then - return filename - end - end - end - return (n or filename) .. "." .. suffix + return hash..' @ '..tostring(size) end end - --- print("1 " .. file.addsuffix("name","new") .. " -> name.new") --- print("2 " .. file.addsuffix("name.old","new") .. " -> name.old") --- print("3 " .. file.addsuffix("name.old","new",true) .. " -> name.old.new") --- print("4 " .. file.addsuffix("name.old","new","new") .. " -> name.new") --- print("5 " .. file.addsuffix("name.old","new","old") .. " -> name.old") --- print("6 " .. file.addsuffix("name.old","new","foo") .. " -> name.new") --- print("7 " .. file.addsuffix("name.old","new",{"foo","bar"}) .. " -> name.new") --- print("8 " .. file.addsuffix("name.old","new",{"old","bar"}) .. " -> name.old") - -local suffix = period * (1-period-slashes)^1 * -1 -local pattern = Cs((1-suffix)^0) - -function file.replacesuffix(name,suffix) - if name and suffix and suffix ~= "" then - return lpegmatch(pattern,name) .. "." .. suffix - else - return name +function constructors.setname(tfmdata,specification) + if constructors.namemode=="specification" then + local specname=specification.specification + if specname then + tfmdata.properties.name=specname + if trace_defining then + report_otf("overloaded fontname: '%s'",specname) + end end + end end - --- - -local reslasher = lpeg.replacer(P("\\"),"/") - -function file.reslash(str) - return str and lpegmatch(reslasher,str) +function constructors.checkedfilename(data) + local foundfilename=data.foundfilename + if not foundfilename then + local askedfilename=data.filename or "" + if askedfilename~="" then + askedfilename=resolvers.resolve(askedfilename) + foundfilename=resolvers.findbinfile(askedfilename,"") or "" + if foundfilename=="" then + report_defining("source file '%s' is not found",askedfilename) + foundfilename=resolvers.findbinfile(file.basename(askedfilename),"") or "" + if foundfilename~="" then + report_defining("using source file '%s' (cache mismatch)",foundfilename) + end + end + end + data.foundfilename=foundfilename + end + return foundfilename +end +local formats=allocate() +fonts.formats=formats +setmetatableindex(formats,function(t,k) + local l=lower(k) + if rawget(t,k) then + t[k]=l + return l + end + return rawget(t,file.suffix(l)) +end) +local locations={} +local function setindeed(mode,target,group,name,action,position) + local t=target[mode] + if not t then + report_defining("fatal error in setting feature '%s', group '%s', mode '%s'",name or "?",group or "?",mode) + os.exit() + elseif position then + insert(t,position,{ name=name,action=action }) + else + for i=1,#t do + local ti=t[i] + if ti.name==name then + ti.action=action + return + end + end + insert(t,{ name=name,action=action }) + end end - --- We should be able to use: --- --- local writable = P(1) * P("w") * Cc(true) --- --- function file.is_writable(name) --- local a = attributes(name) or attributes(pathpart(name,".")) --- return a and lpegmatch(writable,a.permissions) or false --- end --- --- But after some testing Taco and I came up with the more robust --- variant: - -function file.is_writable(name) - if not name then - -- error - elseif lfs.isdir(name) then - name = name .. "/m_t_x_t_e_s_t.tmp" - local f = io.open(name,"wb") - if f then - f:close() - os.remove(name) - return true - end - elseif lfs.isfile(name) then - local f = io.open(name,"ab") - if f then - f:close() - return true +local function set(group,name,target,source) + target=target[group] + if not target then + report_defining("fatal target error in setting feature '%s', group '%s'",name or "?",group or "?") + os.exit() + end + local source=source[group] + if not source then + report_defining("fatal source error in setting feature '%s', group '%s'",name or "?",group or "?") + os.exit() + end + local node=source.node + local base=source.base + local position=source.position + if node then + setindeed("node",target,group,name,node,position) + end + if base then + setindeed("base",target,group,name,base,position) + end +end +local function register(where,specification) + local name=specification.name + if name and name~="" then + local default=specification.default + local description=specification.description + local initializers=specification.initializers + local processors=specification.processors + local manipulators=specification.manipulators + local modechecker=specification.modechecker + if default then + where.defaults[name]=default + end + if description and description~="" then + where.descriptions[name]=description + end + if initializers then + set('initializers',name,where,specification) + end + if processors then + set('processors',name,where,specification) + end + if manipulators then + set('manipulators',name,where,specification) + end + if modechecker then + where.modechecker=modechecker + end + end +end +constructors.registerfeature=register +function constructors.getfeatureaction(what,where,mode,name) + what=handlers[what].features + if what then + where=what[where] + if where then + mode=where[mode] + if mode then + for i=1,#mode do + local m=mode[i] + if m.name==name then + return m.action + end + end + end + end + end +end +function constructors.newhandler(what) + local handler=handlers[what] + if not handler then + handler={} + handlers[what]=handler + end + return handler +end +function constructors.newfeatures(what) + local handler=handlers[what] + local features=handler.features + if not features then + local tables=handler.tables + local statistics=handler.statistics + features=allocate { + defaults={}, + descriptions=tables and tables.features or {}, + used=statistics and statistics.usedfeatures or {}, + initializers={ base={},node={} }, + processors={ base={},node={} }, + manipulators={ base={},node={} }, + } + features.register=function(specification) return register(features,specification) end + handler.features=features + end + return features +end +function constructors.checkedfeatures(what,features) + local defaults=handlers[what].features.defaults + if features and next(features) then + features=fastcopy(features) + for key,value in next,defaults do + if features[key]==nil then + features[key]=value + end + end + return features + else + return fastcopy(defaults) + end +end +function constructors.initializefeatures(what,tfmdata,features,trace,report) + if features and next(features) then + local properties=tfmdata.properties or {} + local whathandler=handlers[what] + local whatfeatures=whathandler.features + local whatinitializers=whatfeatures.initializers + local whatmodechecker=whatfeatures.modechecker + local mode=properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base" + properties.mode=mode + features.mode=mode + local done={} + while true do + local redo=false + local initializers=whatfeatures.initializers[mode] + if initializers then + for i=1,#initializers do + local step=initializers[i] + local feature=step.name + local value=features[feature] + if not value then + elseif done[feature] then + else + local action=step.action + if trace then + report("initializing feature %s to %s for mode %s for font %s",feature, + tostring(value),mode or 'unknown',tfmdata.properties.fullname or 'unknown') + end + action(tfmdata,value,features) + if mode~=properties.mode or mode~=features.mode then + if whatmodechecker then + properties.mode=whatmodechecker(tfmdata,features,properties.mode) + features.mode=properties.mode + end + if mode~=properties.mode then + mode=properties.mode + redo=true + end + end + done[feature]=true + end + if redo then + break + end end - else - local f = io.open(name,"ab") - if f then - f:close() - os.remove(name) - return true + if not redo then + break end + else + break + end end + properties.mode=mode + return true + else return false + end +end +function constructors.collectprocessors(what,tfmdata,features,trace,report) + local processes,nofprocesses={},0 + if features and next(features) then + local properties=tfmdata.properties + local whathandler=handlers[what] + local whatfeatures=whathandler.features + local whatprocessors=whatfeatures.processors + local processors=whatprocessors[properties.mode] + if processors then + for i=1,#processors do + local step=processors[i] + local feature=step.name + if features[feature] then + local action=step.action + if trace then + report("installing feature processor %s for mode %s for font %s",feature, + mode or 'unknown',tfmdata.properties.fullname or 'unknown') + end + if action then + nofprocesses=nofprocesses+1 + processes[nofprocesses]=action + end + end + end + elseif trace then + report("no feature processors for mode %s for font %s", + mode or 'unknown',tfmdata.properties.fullname or 'unknown') + end + end + return processes +end +function constructors.applymanipulators(what,tfmdata,features,trace,report) + if features and next(features) then + local properties=tfmdata.properties + local whathandler=handlers[what] + local whatfeatures=whathandler.features + local whatmanipulators=whatfeatures.manipulators + local manipulators=whatmanipulators[properties.mode] + if manipulators then + for i=1,#manipulators do + local step=manipulators[i] + local feature=step.name + local value=features[feature] + if value then + local action=step.action + if trace then + report("applying feature manipulator %s for mode %s for font %s",feature, + mode or 'unknown',tfmdata.properties.fullname or 'unknown') + end + if action then + action(tfmdata,feature,value) + end + end + end + end + end end -local readable = P("r") * Cc(true) +end -- closure -function file.is_readable(name) - if name then - local a = attributes(name) - return a and lpegmatch(readable,a.permissions) or false - else - return false - end -end +do -- begin closure to overcome local limits and interference -file.isreadable = file.is_readable -- depricated -file.iswritable = file.is_writable -- depricated - -function file.size(name) - if name then - local a = attributes(name) - return a and a.size or 0 - else - return 0 - end -end - -function file.splitpath(str,separator) -- string .. reslash is a bonus (we could do a direct split) - return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator) -end - -function file.joinpath(tab,separator) -- table - return tab and concat(tab,separator or io.pathseparator) -- can have trailing // -end - -local stripper = Cs(P(fwslash)^0/"" * reslasher) -local isnetwork = fwslash * fwslash * (1-fwslash) + (1-fwslash-colon)^1 * colon -local isroot = fwslash^1 * -1 -local hasroot = fwslash^1 - -local deslasher = lpeg.replacer(S("\\/")^1,"/") - --- If we have a network or prefix then there is a change that we end up with two --- // in the middle ... we could prevent this if we (1) expand prefixes: and (2) --- split and rebuild as url. Of course we could assume no network paths (which --- makes sense) adn assume either mapped drives (windows) or mounts (unix) but --- then we still have to deal with urls ... anyhow, multiple // are never a real --- problem but just ugly. - -function file.join(...) - local lst = { ... } - local one = lst[1] - if lpegmatch(isnetwork,one) then - local two = lpegmatch(deslasher,concat(lst,"/",2)) - return one .. "/" .. two - elseif lpegmatch(isroot,one) then - local two = lpegmatch(deslasher,concat(lst,"/",2)) - if lpegmatch(hasroot,two) then - return two - else - return "/" .. two - end - elseif one == "" then - return lpegmatch(stripper,concat(lst,"/",2)) - else - return lpegmatch(deslasher,concat(lst,"/")) - end -end - --- print(file.join("c:/whatever","name")) --- print(file.join("//","/y")) --- print(file.join("/","/y")) --- print(file.join("","/y")) --- print(file.join("/x/","/y")) --- print(file.join("x/","/y")) --- print(file.join("http://","/y")) --- print(file.join("http://a","/y")) --- print(file.join("http:///a","/y")) --- print(file.join("//nas-1","/y")) - --- The previous one fails on "a.b/c" so Taco came up with a split based --- variant. After some skyping we got it sort of compatible with the old --- one. After that the anchoring to currentdir was added in a better way. --- Of course there are some optimizations too. Finally we had to deal with --- windows drive prefixes and things like sys://. Eventually gsubs and --- finds were replaced by lpegs. - -local drivespec = R("az","AZ")^1 * colon -local anchors = fwslash + drivespec -local untouched = periods + (1-period)^1 * P(-1) -local splitstarter = (Cs(drivespec * (bwslash/"/" + fwslash)^0) + Cc(false)) * Ct(lpeg.splitat(S("/\\")^1)) -local absolute = fwslash - -function file.collapsepath(str,anchor) - if not str then - return - end - if anchor and not lpegmatch(anchors,str) then - str = getcurrentdir() .. "/" .. str - end - if str == "" or str =="." then - return "." - elseif lpegmatch(untouched,str) then - return lpegmatch(reslasher,str) - end - local starter, oldelements = lpegmatch(splitstarter,str) - local newelements = { } - local i = #oldelements - while i > 0 do - local element = oldelements[i] - if element == '.' then - -- do nothing - elseif element == '..' then - local n = i - 1 - while n > 0 do - local element = oldelements[n] - if element ~= '..' and element ~= '.' then - oldelements[n] = '.' - break - else - n = n - 1 - end - end - if n < 1 then - insert(newelements,1,'..') - end - elseif element ~= "" then - insert(newelements,1,element) - end - i = i - 1 - end - if #newelements == 0 then - return starter or "." - elseif starter then - return starter .. concat(newelements, '/') - elseif lpegmatch(absolute,str) then - return "/" .. concat(newelements,'/') - else - return concat(newelements, '/') - end -end - --- local function test(str) --- print(string.format("%-20s %-15s %-15s",str,file.collapsepath(str),file.collapsepath(str,true))) --- end --- test("a/b.c/d") test("b.c/d") test("b.c/..") --- test("/") test("c:/..") test("sys://..") --- test("") test("./") test(".") test("..") test("./..") test("../..") --- test("a") test("./a") test("/a") test("a/../..") --- test("a/./b/..") test("a/aa/../b/bb") test("a/.././././b/..") test("a/./././b/..") --- test("a/b/c/../..") test("./a/b/c/../..") test("a/b/c/../..") - -local validchars = R("az","09","AZ","--","..") -local pattern_a = lpeg.replacer(1-validchars) -local pattern_a = Cs((validchars + P(1)/"-")^1) -local whatever = P("-")^0 / "" -local pattern_b = Cs(whatever * (1 - whatever * -1)^1) - -function file.robustname(str,strict) - if str then - str = lpegmatch(pattern_a,str) or str - if strict then - return lpegmatch(pattern_b,str) or str -- two step is cleaner (less backtracking) - else - return str - end - end -end - -file.readdata = io.loaddata -file.savedata = io.savedata - -function file.copy(oldname,newname) - if oldname and newname then - file.savedata(newname,io.loaddata(oldname)) - end -end - --- also rewrite previous - -local letter = R("az","AZ") + S("_-+") -local separator = P("://") - -local qualified = period^0 * fwslash - + letter * colon - + letter^1 * separator - + letter^1 * fwslash -local rootbased = fwslash - + letter * colon - -lpeg.patterns.qualified = qualified -lpeg.patterns.rootbased = rootbased - --- ./name ../name /name c: :// name/name - -function file.is_qualified_path(filename) - return filename and lpegmatch(qualified,filename) ~= nil -end - -function file.is_rootbased_path(filename) - return filename and lpegmatch(rootbased,filename) ~= nil -end - --- function test(t) for k, v in next, t do print(v, "=>", file.splitname(v)) end end --- --- test { "c:", "c:/aa", "c:/aa/bb", "c:/aa/bb/cc", "c:/aa/bb/cc.dd", "c:/aa/bb/cc.dd.ee" } --- test { "c:", "c:aa", "c:aa/bb", "c:aa/bb/cc", "c:aa/bb/cc.dd", "c:aa/bb/cc.dd.ee" } --- test { "/aa", "/aa/bb", "/aa/bb/cc", "/aa/bb/cc.dd", "/aa/bb/cc.dd.ee" } --- test { "aa", "aa/bb", "aa/bb/cc", "aa/bb/cc.dd", "aa/bb/cc.dd.ee" } - --- -- maybe: --- --- if os.type == "windows" then --- local currentdir = getcurrentdir --- function getcurrentdir() --- return lpegmatch(reslasher,currentdir()) --- end --- end - --- for myself: - -function file.strip(name,dir) - if name then - local b, a = match(name,"^(.-)" .. dir .. "(.*)$") - return a ~= "" and a or name - end -end - --- local debuglist = { --- "pathpart", "basename", "nameonly", "suffixonly", "suffix", "dirname", "extname", --- "addsuffix", "removesuffix", "replacesuffix", "join", --- "strip","collapsepath", "joinpath", "splitpath", --- } - --- for i=1,#debuglist do --- local name = debuglist[i] --- local f = file[name] --- file[name] = function(...) --- print(name,f(...)) --- return f(...) --- end --- end +if not modules then modules={} end modules ['luatex-font-enc']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +if context then + texio.write_nl("fatal error: this module is not for context") + os.exit() +end +local fonts=fonts +fonts.encodings={} +fonts.encodings.agl={} +setmetatable(fonts.encodings.agl,{ __index=function(t,k) + if k=="unicodes" then + texio.write(" ") + local unicodes=dofile(resolvers.findfile("font-age.lua")) + fonts.encodings.agl={ unicodes=unicodes } + return unicodes + else + return nil + end +end }) end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['l-io'] = { - version = 1.001, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local io = io -local byte, find, gsub, format = string.byte, string.find, string.gsub, string.format -local concat = table.concat -local floor = math.floor -local type = type - -if string.find(os.getenv("PATH"),";") then - io.fileseparator, io.pathseparator = "\\", ";" -else - io.fileseparator, io.pathseparator = "/" , ":" -end - -local function readall(f) - return f:read("*all") -end - --- The next one is upto 50% faster on large files and less memory consumption due --- to less intermediate large allocations. This phenomena was discussed on the --- luatex dev list. - -local function readall(f) - local size = f:seek("end") - if size == 0 then - return "" - elseif size < 1024*1024 then - f:seek("set",0) - return f:read('*all') - else - local done = f:seek("set",0) - if size < 1024*1024 then - step = 1024 * 1024 - elseif size > 16*1024*1024 then - step = 16*1024*1024 - else - step = floor(size/(1024*1024)) * 1024 * 1024 / 8 - end - local data = { } - while true do - local r = f:read(step) - if not r then - return concat(data) - else - data[#data+1] = r - end - end - end -end - -io.readall = readall - -function io.loaddata(filename,textmode) -- return nil if empty - local f = io.open(filename,(textmode and 'r') or 'rb') - if f then --- local data = f:read('*all') - local data = readall(f) - f:close() - if #data > 0 then - return data - end - end -end - -function io.savedata(filename,data,joiner) - local f = io.open(filename,"wb") - if f then - if type(data) == "table" then - f:write(concat(data,joiner or "")) - elseif type(data) == "function" then - data(f) - else - f:write(data or "") - end - f:close() - io.flush() - return true - else - return false - end -end - --- we can also chunk this one if needed: io.lines(filename,chunksize,"*l") - -function io.loadlines(filename,n) -- return nil if empty - local f = io.open(filename,'r') - if not f then - -- no file - elseif n then - local lines = { } - for i=1,n do - local line = f:read("*lines") - if line then - lines[#lines+1] = line - else - break - end - end - f:close() - lines = concat(lines,"\n") - if #lines > 0 then - return lines - end - else - local line = f:read("*line") or "" - f:close() - if #line > 0 then - return line - end - end -end - -function io.loadchunk(filename,n) - local f = io.open(filename,'rb') - if f then - local data = f:read(n or 1024) - f:close() - if #data > 0 then - return data - end - end -end - -function io.exists(filename) - local f = io.open(filename) - if f == nil then - return false - else - f:close() - return true - end -end - -function io.size(filename) - local f = io.open(filename) - if f == nil then - return 0 - else - local s = f:seek("end") - f:close() - return s - end -end - -function io.noflines(f) - if type(f) == "string" then - local f = io.open(filename) - if f then - local n = f and io.noflines(f) or 0 - f:close() - return n - else - return 0 - end - else - local n = 0 - for _ in f:lines() do - n = n + 1 - end - f:seek('set',0) - return n - end -end - -local nextchar = { - [ 4] = function(f) - return f:read(1,1,1,1) - end, - [ 2] = function(f) - return f:read(1,1) - end, - [ 1] = function(f) - return f:read(1) - end, - [-2] = function(f) - local a, b = f:read(1,1) - return b, a - end, - [-4] = function(f) - local a, b, c, d = f:read(1,1,1,1) - return d, c, b, a - end -} - -function io.characters(f,n) - if f then - return nextchar[n or 1], f - end -end - -local nextbyte = { - [4] = function(f) - local a, b, c, d = f:read(1,1,1,1) - if d then - return byte(a), byte(b), byte(c), byte(d) - end - end, - [3] = function(f) - local a, b, c = f:read(1,1,1) - if b then - return byte(a), byte(b), byte(c) - end - end, - [2] = function(f) - local a, b = f:read(1,1) - if b then - return byte(a), byte(b) - end - end, - [1] = function (f) - local a = f:read(1) - if a then - return byte(a) - end - end, - [-2] = function (f) - local a, b = f:read(1,1) - if b then - return byte(b), byte(a) - end - end, - [-3] = function(f) - local a, b, c = f:read(1,1,1) - if b then - return byte(c), byte(b), byte(a) - end - end, - [-4] = function(f) - local a, b, c, d = f:read(1,1,1,1) - if d then - return byte(d), byte(c), byte(b), byte(a) - end - end +if not modules then modules={} end modules ['font-cid']={ + version=1.001, + comment="companion to font-otf.lua (cidmaps)", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - -function io.bytes(f,n) - if f then - return nextbyte[n or 1], f - else - return nil, nil - end -end - -function io.ask(question,default,options) - while true do - io.write(question) - if options then - io.write(format(" [%s]",concat(options,"|"))) - end - if default then - io.write(format(" [%s]",default)) - end - io.write(format(" ")) - io.flush() - local answer = io.read() - answer = gsub(answer,"^%s*(.*)%s*$","%1") - if answer == "" and default then - return default - elseif not options then - return answer - else - for k=1,#options do - if options[k] == answer then - return answer - end - end - local pattern = "^" .. answer - for k=1,#options do - local v = options[k] - if find(v,pattern) then - return v - end - end - end - end -end - -local function readnumber(f,n,m) - if m then - f:seek("set",n) - n = m - end - if n == 1 then - return byte(f:read(1)) - elseif n == 2 then - local a, b = byte(f:read(2),1,2) - return 256 * a + b - elseif n == 3 then - local a, b, c = byte(f:read(3),1,3) - return 256*256 * a + 256 * b + c - elseif n == 4 then - local a, b, c, d = byte(f:read(4),1,4) - return 256*256*256 * a + 256*256 * b + 256 * c + d - elseif n == 8 then - local a, b = readnumber(f,4), readnumber(f,4) - return 256 * a + b - elseif n == 12 then - local a, b, c = readnumber(f,4), readnumber(f,4), readnumber(f,4) - return 256*256 * a + 256 * b + c - elseif n == -2 then - local b, a = byte(f:read(2),1,2) - return 256*a + b - elseif n == -3 then - local c, b, a = byte(f:read(3),1,3) - return 256*256 * a + 256 * b + c - elseif n == -4 then - local d, c, b, a = byte(f:read(4),1,4) - return 256*256*256 * a + 256*256 * b + 256*c + d - elseif n == -8 then - local h, g, f, e, d, c, b, a = byte(f:read(8),1,8) - return 256*256*256*256*256*256*256 * a + - 256*256*256*256*256*256 * b + - 256*256*256*256*256 * c + - 256*256*256*256 * d + - 256*256*256 * e + - 256*256 * f + - 256 * g + - h - else - return 0 - end +local format,match,lower=string.format,string.match,string.lower +local tonumber=tonumber +local P,S,R,C,V,lpegmatch=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.V,lpeg.match +local fonts,logs,trackers=fonts,logs,trackers +local trace_loading=false trackers.register("otf.loading",function(v) trace_loading=v end) +local report_otf=logs.reporter("fonts","otf loading") +local cid={} +fonts.cid=cid +local cidmap={} +local cidmax=10 +local number=C(R("09","af","AF")^1) +local space=S(" \n\r\t") +local spaces=space^0 +local period=P(".") +local periods=period*period +local name=P("/")*C((1-space)^1) +local unicodes,names={},{} +local function do_one(a,b) + unicodes[tonumber(a)]=tonumber(b,16) end - -io.readnumber = readnumber - -function io.readstring(f,n,m) - if m then - f:seek("set",n) - n = m - end - local str = gsub(f:read(n),"\000","") - return str +local function do_range(a,b,c) + c=tonumber(c,16) + for i=tonumber(a),tonumber(b) do + unicodes[i]=c + c=c+1 + end end - --- - -if not io.i_limiter then function io.i_limiter() end end -- dummy so we can test safely -if not io.o_limiter then function io.o_limiter() end end -- dummy so we can test safely - --- This works quite ok: --- --- function io.piped(command,writer) --- local pipe = io.popen(command) --- -- for line in pipe:lines() do --- -- print(line) --- -- end --- while true do --- local line = pipe:read(1) --- if not line then --- break --- elseif line ~= "\n" then --- writer(line) --- end --- end --- return pipe:close() -- ok, status, (error)code --- end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luat-basics-gen'] = { - version = 1.100, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +local function do_name(a,b) + names[tonumber(a)]=b +end +local grammar=P { "start", + start=number*spaces*number*V("series"), + series=(spaces*(V("one")+V("range")+V("named")))^1, + one=(number*spaces*number)/do_one, + range=(number*periods*number*spaces*number)/do_range, + named=(number*spaces*name)/do_name } - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() +local function loadcidfile(filename) + local data=io.loaddata(filename) + if data then + unicodes,names={},{} + lpegmatch(grammar,data) + local supplement,registry,ordering=match(filename,"^(.-)%-(.-)%-()%.(.-)$") + return { + supplement=supplement, + registry=registry, + ordering=ordering, + filename=filename, + unicodes=unicodes, + names=names + } + end end - -local dummyfunction = function() end -local dummyreporter = function(c) return function(...) texio.write(c .. " : " .. string.format(...)) end end - -statistics = { - register = dummyfunction, - starttiming = dummyfunction, - stoptiming = dummyfunction, - elapsedtime = nil, -} - -directives = { - register = dummyfunction, - enable = dummyfunction, - disable = dummyfunction, -} - -trackers = { - register = dummyfunction, - enable = dummyfunction, - disable = dummyfunction, -} - -experiments = { - register = dummyfunction, - enable = dummyfunction, - disable = dummyfunction, -} - -storage = { -- probably no longer needed - register = dummyfunction, - shared = { }, -} - -logs = { - new = dummyreporter, - reporter = dummyreporter, - messenger = dummyreporter, - report = dummyfunction, -} - -callbacks = { - register = function(n,f) return callback.register(n,f) end, - -} - -utilities = { - storage = { - allocate = function(t) return t or { } end, - mark = function(t) return t or { } end, - }, -} - -characters = characters or { - data = { } -} - --- we need to cheat a bit here - -texconfig.kpse_init = true - -resolvers = resolvers or { } -- no fancy file helpers used - -local remapper = { - otf = "opentype fonts", - ttf = "truetype fonts", - ttc = "truetype fonts", - dfont = "truetype fonts", -- "truetype dictionary", - cid = "cid maps", - cidmap = "cid maps", - fea = "font feature files", - pfa = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this! - pfb = "type1 fonts", -- this is for Khaled, in ConTeXt we don't use this! -} - -function resolvers.findfile(name,fileformat) - name = string.gsub(name,"\\","/") - if not fileformat or fileformat == "" then - fileformat = file.suffix(name) - if fileformat == "" then - fileformat = "tex" - end - end - fileformat = string.lower(fileformat) - fileformat = remapper[fileformat] or fileformat - local found = kpse.find_file(name,fileformat) - if not found or found == "" then - found = kpse.find_file(name,"other text files") +cid.loadfile=loadcidfile +local template="%s-%s-%s.cidmap" +local function locate(registry,ordering,supplement) + local filename=format(template,registry,ordering,supplement) + local hashname=lower(filename) + local found=cidmap[hashname] + if not found then + if trace_loading then + report_otf("checking cidmap, registry: %s, ordering: %s, supplement: %s, filename: %s",registry,ordering,supplement,filename) end - return found -end - --- function resolvers.findbinfile(name,fileformat) --- if not fileformat or fileformat == "" then --- fileformat = file.suffix(name) --- end --- return resolvers.findfile(name,(fileformat and remapper[fileformat]) or fileformat) --- end - -resolvers.findbinfile = resolvers.findfile - -function resolvers.resolve(s) - return s -end - -function resolvers.unresolve(s) - return s -end - --- Caches ... I will make a real stupid version some day when I'm in the --- mood. After all, the generic code does not need the more advanced --- ConTeXt features. Cached data is not shared between ConTeXt and other --- usage as I don't want any dependency at all. Also, ConTeXt might have --- different needs and tricks added. - ---~ containers.usecache = true - -caches = { } - -local writable, readables = nil, { } - -if not caches.namespace or caches.namespace == "" or caches.namespace == "context" then - caches.namespace = 'generic' -end - -do - - local cachepaths = kpse.expand_path('$TEXMFCACHE') or "" - - if cachepaths == "" then - cachepaths = kpse.expand_path('$TEXMFVAR') - end - - if cachepaths == "" then - cachepaths = kpse.expand_path('$VARTEXMF') - end - - if cachepaths == "" then - cachepaths = "." - end - - cachepaths = string.split(cachepaths,os.type == "windows" and ";" or ":") - - for i=1,#cachepaths do - if file.is_writable(cachepaths[i]) then - writable = file.join(cachepaths[i],"luatex-cache") - lfs.mkdir(writable) - writable = file.join(writable,caches.namespace) - lfs.mkdir(writable) - break - end - end - - for i=1,#cachepaths do - if file.is_readable(cachepaths[i]) then - readables[#readables+1] = file.join(cachepaths[i],"luatex-cache",caches.namespace) - end - end - - if not writable then - texio.write_nl("quiting: fix your writable cache path") - os.exit() - elseif #readables == 0 then - texio.write_nl("quiting: fix your readable cache path") - os.exit() - elseif #readables == 1 and readables[1] == writable then - texio.write(string.format("(using cache: %s)",writable)) - else - texio.write(string.format("(using write cache: %s)",writable)) - texio.write(string.format("(using read cache: %s)",table.concat(readables, " "))) - end - -end - -function caches.getwritablepath(category,subcategory) - local path = file.join(writable,category) - lfs.mkdir(path) - path = file.join(path,subcategory) - lfs.mkdir(path) - return path -end - -function caches.getreadablepaths(category,subcategory) - local t = { } - for i=1,#readables do - t[i] = file.join(readables[i],category,subcategory) - end - return t -end - -local function makefullname(path,name) - if path and path ~= "" then - name = "temp-" .. name -- clash prevention - return file.addsuffix(file.join(path,name),"lua"), file.addsuffix(file.join(path,name),"luc") - end -end - -function caches.is_writable(path,name) - local fullname = makefullname(path,name) - return fullname and file.is_writable(fullname) -end - -function caches.loaddata(paths,name) - for i=1,#paths do - local data = false - local luaname, lucname = makefullname(paths[i],name) - if lucname and lfs.isfile(lucname) then - texio.write(string.format("(load: %s)",lucname)) - data = loadfile(lucname) - end - if not data and luaname and lfs.isfile(luaname) then - texio.write(string.format("(load: %s)",luaname)) - data = loadfile(luaname) - end - return data and data() - end -end - -function caches.savedata(path,name,data) - local luaname, lucname = makefullname(path,name) - if luaname then - texio.write(string.format("(save: %s)",luaname)) - table.tofile(luaname,data,true,{ reduce = true }) - if lucname and type(caches.compile) == "function" then - os.remove(lucname) -- better be safe - texio.write(string.format("(save: %s)",lucname)) - caches.compile(data,luaname,lucname) - end - end -end - --- According to KH os.execute is not permitted in plain/latex so there is --- no reason to use the normal context way. So the method here is slightly --- different from the one we have in context. We also use different suffixes --- as we don't want any clashes (sharing cache files is not that handy as --- context moves on faster.) --- --- Beware: serialization might fail on large files (so maybe we should pcall --- this) in which case one should limit the method to luac and enable support --- for execution. - -caches.compilemethod = "luac" -- luac dump both - -function caches.compile(data,luaname,lucname) - local done = false - if caches.compilemethod == "luac" or caches.compilemethod == "both" then - local command = "-o " .. string.quoted(lucname) .. " -s " .. string.quoted(luaname) - done = os.spawn("texluac " .. command) == 0 - end - if not done and (caches.compilemethod == "dump" or caches.compilemethod == "both") then - local d = table.serialize(data,true) - if d and d ~= "" then - local f = io.open(lucname,'w') - if f then - local s = loadstring(d) - f:write(string.dump(s)) - f:close() - end - end - end -end - --- - -function table.setmetatableindex(t,f) - setmetatable(t,{ __index = f }) -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['data-con'] = { - version = 1.100, - comment = "companion to luat-lib.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local format, lower, gsub = string.format, string.lower, string.gsub - -local trace_cache = false trackers.register("resolvers.cache", function(v) trace_cache = v end) -local trace_containers = false trackers.register("resolvers.containers", function(v) trace_containers = v end) -local trace_storage = false trackers.register("resolvers.storage", function(v) trace_storage = v end) - ---[[ldx-- -

Once we found ourselves defining similar cache constructs -several times, containers were introduced. Containers are used -to collect tables in memory and reuse them when possible based -on (unique) hashes (to be provided by the calling function).

- -

Caching to disk is disabled by default. Version numbers are -stored in the saved table which makes it possible to change the -table structures without bothering about the disk cache.

- -

Examples of usage can be found in the font related code.

---ldx]]-- - -containers = containers or { } -local containers = containers -containers.usecache = true - -local report_containers = logs.reporter("resolvers","containers") - -local function report(container,tag,name) - if trace_cache or trace_containers then - report_containers("container: %s, tag: %s, name: %s",container.subcategory,tag,name or 'invalid') - end -end - -local allocated = { } - -local mt = { - __index = function(t,k) - if k == "writable" then - local writable = caches.getwritablepath(t.category,t.subcategory) or { "." } - t.writable = writable - return writable - elseif k == "readables" then - local readables = caches.getreadablepaths(t.category,t.subcategory) or { "." } - t.readables = readables - return readables - end - end, - __storage__ = true -} - -function containers.define(category, subcategory, version, enabled) - if category and subcategory then - local c = allocated[category] - if not c then - c = { } - allocated[category] = c - end - local s = c[subcategory] - if not s then - s = { - category = category, - subcategory = subcategory, - storage = { }, - enabled = enabled, - version = version or math.pi, -- after all, this is TeX - trace = false, - -- writable = caches.getwritablepath and caches.getwritablepath (category,subcategory) or { "." }, - -- readables = caches.getreadablepaths and caches.getreadablepaths(category,subcategory) or { "." }, - } - setmetatable(s,mt) - c[subcategory] = s - end - return s - end -end - -function containers.is_usable(container, name) - return container.enabled and caches and caches.is_writable(container.writable, name) -end - -function containers.is_valid(container, name) - if name and name ~= "" then - local storage = container.storage[name] - return storage and storage.cache_version == container.version - else - return false - end -end - -function containers.read(container,name) - local storage = container.storage - local stored = storage[name] - if not stored and container.enabled and caches and containers.usecache then - stored = caches.loaddata(container.readables,name) - if stored and stored.cache_version == container.version then - report(container,"loaded",name) - else - stored = nil - end - storage[name] = stored - elseif stored then - report(container,"reusing",name) - end - return stored -end - -function containers.write(container, name, data) - if data then - data.cache_version = container.version - if container.enabled and caches then - local unique, shared = data.unique, data.shared - data.unique, data.shared = nil, nil - caches.savedata(container.writable, name, data) - report(container,"saved",name) - data.unique, data.shared = unique, shared - end - report(container,"stored",name) - container.storage[name] = data - end - return data -end - -function containers.content(container,name) - return container.storage[name] -end - -function containers.cleanname(name) - return (gsub(lower(name),"[^%w%d]+","-")) -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luatex-fonts-nod'] = { - version = 1.001, - comment = "companion to luatex-fonts.lua", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() -end - --- Don't depend on code here as it is only needed to complement the --- font handler code. - --- Attributes: - -if tex.attribute[0] ~= 0 then - - texio.write_nl("log","!") - texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be") - texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special") - texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.") - texio.write_nl("log","!") - - tex.attribute[0] = 0 -- else no features - -end - -attributes = { } -attributes.unsetvalue = -0x7FFFFFFF - -local numbers, last = { }, 127 - -function attributes.private(name) - local number = numbers[name] - if not number then - if last < 255 then - last = last + 1 - end - number = last - numbers[name] = number - end - return number -end - --- Nodes: - -nodes = { } -nodes.pool = { } -nodes.handlers = { } - -local nodecodes = { } for k,v in next, node.types () do nodecodes[string.gsub(v,"_","")] = k end -local whatcodes = { } for k,v in next, node.whatsits() do whatcodes[string.gsub(v,"_","")] = k end -local glyphcodes = { [0] = "character", "glyph", "ligature", "ghost", "left", "right" } - -nodes.nodecodes = nodecodes -nodes.whatcodes = whatcodes -nodes.whatsitcodes = whatcodes -nodes.glyphcodes = glyphcodes - -local free_node = node.free -local remove_node = node.remove -local new_node = node.new - -nodes.handlers.protectglyphs = node.protect_glyphs -nodes.handlers.unprotectglyphs = node.unprotect_glyphs - -function nodes.remove(head, current, free_too) - local t = current - head, current = remove_node(head,current) - if t then - if free_too then - free_node(t) - t = nil - else - t.next, t.prev = nil, nil - end - end - return head, current, t -end - -function nodes.delete(head,current) - return nodes.remove(head,current,true) -end - -nodes.before = node.insert_before -nodes.after = node.insert_after - -function nodes.pool.kern(k) - local n = new_node("kern",1) - n.kern = k - return n -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-ini'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - ---[[ldx-- -

Not much is happening here.

---ldx]]-- - -local allocate = utilities.storage.allocate - -local report_defining = logs.reporter("fonts","defining") - -fonts = fonts or { } -local fonts = fonts - -fonts.hashes = { identifiers = allocate() } - -fonts.tables = fonts.tables or { } -fonts.helpers = fonts.helpers or { } -fonts.tracers = fonts.tracers or { } -- for the moment till we have move to moduledata -fonts.specifiers = fonts.specifiers or { } -- in format ! - -fonts.analyzers = { } -- not needed here -fonts.readers = { } -fonts.definers = { methods = { } } -fonts.loggers = { register = function() end } - -fontloader.totable = fontloader.to_table - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-con'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - --- some names of table entries will be changed (no _) - -local next, tostring, rawget = next, tostring, rawget -local format, match, lower, gsub = string.format, string.match, string.lower, string.gsub -local utfbyte = utf.byte -local sort, insert, concat, sortedkeys, serialize, fastcopy = table.sort, table.insert, table.concat, table.sortedkeys, table.serialize, table.fastcopy -local derivetable = table.derive - -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) -local trace_scaling = false trackers.register("fonts.scaling" , function(v) trace_scaling = v end) - -local report_defining = logs.reporter("fonts","defining") - --- watch out: no negative depths and negative eights permitted in regular fonts - ---[[ldx-- -

Here we only implement a few helper functions.

---ldx]]-- - -local fonts = fonts -local constructors = fonts.constructors or { } -fonts.constructors = constructors -local handlers = fonts.handlers or { } -- can have preloaded tables -fonts.handlers = handlers - -local specifiers = fonts.specifiers -local contextsetups = specifiers.contextsetups -local contextnumbers = specifiers.contextnumbers - -local allocate = utilities.storage.allocate -local setmetatableindex = table.setmetatableindex - --- will be directives - -constructors.dontembed = allocate() -constructors.autocleanup = true -constructors.namemode = "fullpath" -- will be a function - -constructors.version = 1.01 -constructors.cache = containers.define("fonts", "constructors", constructors.version, false) - -constructors.privateoffset = 0xF0000 -- 0x10FFFF - --- Some experimental helpers (handy for tracing): --- --- todo: extra: --- --- extra_space => space.extra --- space => space.width --- space_stretch => space.stretch --- space_shrink => space.shrink - --- We do keep the x-height, extra_space, space_shrink and space_stretch --- around as these are low level official names. - -constructors.keys = { - properties = { - encodingbytes = "number", - embedding = "number", - cidinfo = { - }, - format = "string", - fontname = "string", - fullname = "string", - filename = "filename", - psname = "string", - name = "string", - virtualized = "boolean", - hasitalics = "boolean", - autoitalicamount = "basepoints", - nostackmath = "boolean", - noglyphnames = "boolean", - mode = "string", - hasmath = "boolean", - mathitalics = "boolean", - textitalics = "boolean", - finalized = "boolean", - }, - parameters = { - mathsize = "number", - scriptpercentage = "float", - scriptscriptpercentage = "float", - units = "cardinal", - designsize = "scaledpoints", - expansion = { - stretch = "integerscale", -- might become float - shrink = "integerscale", -- might become float - step = "integerscale", -- might become float - auto = "boolean", - }, - protrusion = { - auto = "boolean", - }, - slantfactor = "float", - extendfactor = "float", - factor = "float", - hfactor = "float", - vfactor = "float", - size = "scaledpoints", - units = "scaledpoints", - scaledpoints = "scaledpoints", - slantperpoint = "scaledpoints", - spacing = { - width = "scaledpoints", - stretch = "scaledpoints", - shrink = "scaledpoints", - extra = "scaledpoints", - }, - xheight = "scaledpoints", - quad = "scaledpoints", - ascender = "scaledpoints", - descender = "scaledpoints", - synonyms = { - space = "spacing.width", - spacestretch = "spacing.stretch", - spaceshrink = "spacing.shrink", - extraspace = "spacing.extra", - x_height = "xheight", - space_stretch = "spacing.stretch", - space_shrink = "spacing.shrink", - extra_space = "spacing.extra", - em = "quad", - ex = "xheight", - slant = "slantperpoint", - }, - }, - description = { - width = "basepoints", - height = "basepoints", - depth = "basepoints", - boundingbox = { }, - }, - character = { - width = "scaledpoints", - height = "scaledpoints", - depth = "scaledpoints", - italic = "scaledpoints", - }, -} - --- This might become an interface: - -local designsizes = allocate() -constructors.designsizes = designsizes -local loadedfonts = allocate() -constructors.loadedfonts = loadedfonts - ---[[ldx-- -

We need to normalize the scale factor (in scaled points). This has to -do with the fact that uses a negative multiple of 1000 as -a signal for a font scaled based on the design size.

---ldx]]-- - -local factors = { - pt = 65536.0, - bp = 65781.8, -} - -function constructors.setfactor(f) - constructors.factor = factors[f or 'pt'] or factors.pt -end - -constructors.setfactor() - -function constructors.scaled(scaledpoints, designsize) -- handles designsize in sp as well - if scaledpoints < 0 then - if designsize then - local factor = constructors.factor - if designsize > factor then -- or just 1000 / when? mp? - return (- scaledpoints/1000) * designsize -- sp's - else - return (- scaledpoints/1000) * designsize * factor - end - else - return (- scaledpoints/1000) * 10 * factor - end - else - return scaledpoints - end -end - ---[[ldx-- -

Beware, the boundingbox is passed as reference so we may not overwrite it -in the process; numbers are of course copies. Here 65536 equals 1pt. (Due to -excessive memory usage in CJK fonts, we no longer pass the boundingbox.)

---ldx]]-- - --- The scaler is only used for otf and afm and virtual fonts. If --- a virtual font has italic correction make sure to set the --- hasitalics flag. Some more flags will be added in --- the future. - ---[[ldx-- -

The reason why the scaler was originally split, is that for a while we experimented -with a helper function. However, in practice the calls are too slow to -make this profitable and the based variant was just faster. A days -wasted day but an experience richer.

---ldx]]-- - --- we can get rid of the tfm instance when we have fast access to the --- scaled character dimensions at the tex end, e.g. a fontobject.width --- actually we already have soem of that now as virtual keys in glyphs --- --- flushing the kern and ligature tables from memory saves a lot (only --- base mode) but it complicates vf building where the new characters --- demand this data .. solution: functions that access them - -function constructors.cleanuptable(tfmdata) - if constructors.autocleanup and tfmdata.properties.virtualized then - for k, v in next, tfmdata.characters do - if v.commands then v.commands = nil end - -- if v.kerns then v.kerns = nil end - end - end -end - --- experimental, sharing kerns (unscaled and scaled) saves memory --- local sharedkerns, basekerns = constructors.check_base_kerns(tfmdata) --- loop over descriptions (afm and otf have descriptions, tfm not) --- there is no need (yet) to assign a value to chr.tonunicode - --- constructors.prepare_base_kerns(tfmdata) -- optimalization - --- we have target.name=metricfile and target.fullname=RealName and target.filename=diskfilename --- when collapsing fonts, luatex looks as both target.name and target.fullname as ttc files --- can have multiple subfonts - -function constructors.calculatescale(tfmdata,scaledpoints) - local parameters = tfmdata.parameters - if scaledpoints < 0 then - scaledpoints = (- scaledpoints/1000) * (tfmdata.designsize or parameters.designsize) -- already in sp - end - return scaledpoints, scaledpoints / (parameters.units or 1000) -- delta -end - -local unscaled = { - ScriptPercentScaleDown = true, - ScriptScriptPercentScaleDown = true, - RadicalDegreeBottomRaisePercent = true -} - -function constructors.assignmathparameters(target,original) -- simple variant, not used in context - -- when a tfm file is loaded, it has already been scaled - -- and it never enters the scaled so this is otf only and - -- even then we do some extra in the context math plugins - local mathparameters = original.mathparameters - if mathparameters and next(mathparameters) then - local targetparameters = target.parameters - local targetproperties = target.properties - local targetmathparameters = { } - local factor = targetproperties.math_is_scaled and 1 or targetparameters.factor - for name, value in next, mathparameters do - if unscaled[name] then - targetmathparameters[name] = value - else - targetmathparameters[name] = value * factor - end - end - if not targetmathparameters.FractionDelimiterSize then - targetmathparameters.FractionDelimiterSize = 1.01 * targetparameters.size - end - if not mathparameters.FractionDelimiterDisplayStyleSize then - targetmathparameters.FractionDelimiterDisplayStyleSize = 2.40 * targetparameters.size - end - target.mathparameters = targetmathparameters - end -end - -function constructors.beforecopyingcharacters(target,original) - -- can be used for additional tweaking -end - -function constructors.aftercopyingcharacters(target,original) - -- can be used for additional tweaking -end - -function constructors.enhanceparameters(parameters) - local xheight = parameters.x_height - local quad = parameters.quad - local space = parameters.space - local stretch = parameters.space_stretch - local shrink = parameters.space_shrink - local extra = parameters.extra_space - local slant = parameters.slant - parameters.xheight = xheight - parameters.spacestretch = stretch - parameters.spaceshrink = shrink - parameters.extraspace = extra - parameters.em = quad - parameters.ex = xheight - parameters.slantperpoint = slant - parameters.spacing = { - width = space, - stretch = stretch, - shrink = shrink, - extra = extra, - } -end - -function constructors.scale(tfmdata,specification) - local target = { } -- the new table - -- - if tonumber(specification) then - specification = { size = specification } - end - -- - local scaledpoints = specification.size - local relativeid = specification.relativeid - -- - local properties = tfmdata.properties or { } - local goodies = tfmdata.goodies or { } - local resources = tfmdata.resources or { } - local descriptions = tfmdata.descriptions or { } -- bad news if empty - local characters = tfmdata.characters or { } -- bad news if empty - local changed = tfmdata.changed or { } -- for base mode - local shared = tfmdata.shared or { } - local parameters = tfmdata.parameters or { } - local mathparameters = tfmdata.mathparameters or { } - -- - local targetcharacters = { } - local targetdescriptions = derivetable(descriptions) - local targetparameters = derivetable(parameters) - local targetproperties = derivetable(properties) - local targetgoodies = goodies -- we need to loop so no metatable - target.characters = targetcharacters - target.descriptions = targetdescriptions - target.parameters = targetparameters - -- target.mathparameters = targetmathparameters -- happens elsewhere - target.properties = targetproperties - target.goodies = targetgoodies - target.shared = shared - target.resources = resources - target.unscaled = tfmdata -- the original unscaled one - -- - -- specification.mathsize : 1=text 2=script 3=scriptscript - -- specification.textsize : natural (text)size - -- parameters.mathsize : 1=text 2=script 3=scriptscript >1000 enforced size (feature value other than yes) - -- - local mathsize = tonumber(specification.mathsize) or 0 - local textsize = tonumber(specification.textsize) or scaledpoints - local forcedsize = tonumber(parameters.mathsize ) or 0 - local extrafactor = tonumber(specification.factor ) or 1 - if (mathsize == 2 or forcedsize == 2) and parameters.scriptpercentage then - scaledpoints = parameters.scriptpercentage * textsize / 100 - elseif (mathsize == 3 or forcedsize == 3) and parameters.scriptscriptpercentage then - scaledpoints = parameters.scriptscriptpercentage * textsize / 100 - elseif forcedsize > 1000 then -- safeguard - scaledpoints = forcedsize - end - targetparameters.mathsize = mathsize -- context specific - targetparameters.textsize = textsize -- context specific - targetparameters.forcedsize = forcedsize -- context specific - targetparameters.extrafactor = extrafactor -- context specific - -- - local tounicode = resources.tounicode - local defaultwidth = resources.defaultwidth or 0 - local defaultheight = resources.defaultheight or 0 - local defaultdepth = resources.defaultdepth or 0 - local units = parameters.units or 1000 - -- - if target.fonts then - target.fonts = fastcopy(target.fonts) -- maybe we virtualize more afterwards - end - -- - -- boundary keys are no longer needed as we now have a string 'right_boundary' - -- that can be used in relevant tables (kerns and ligatures) ... not that I ever - -- used them - -- - -- boundarychar_label = 0, -- not needed - -- boundarychar = 65536, -- there is now a string 'right_boundary' - -- false_boundarychar = 65536, -- produces invalid tfm in luatex - -- - targetproperties.language = properties.language or "dflt" -- inherited - targetproperties.script = properties.script or "dflt" -- inherited - targetproperties.mode = properties.mode or "base" -- inherited - -- - local askedscaledpoints = scaledpoints - local scaledpoints, delta = constructors.calculatescale(tfmdata,scaledpoints) -- no shortcut, dan be redefined - -- - local hdelta = delta - local vdelta = delta - -- - target.designsize = parameters.designsize -- not really needed so it muight become obsolete - target.units_per_em = units -- just a trigger for the backend (does luatex use this? if not it will go) - -- - local direction = properties.direction or tfmdata.direction or 0 -- pointless, as we don't use omf fonts at all - target.direction = direction - properties.direction = direction - -- - target.size = scaledpoints - -- - target.encodingbytes = properties.encodingbytes or 1 - target.embedding = properties.embedding or "subset" - target.tounicode = 1 - target.cidinfo = properties.cidinfo - target.format = properties.format - -- - local fontname = properties.fontname or tfmdata.fontname -- for the moment we fall back on - local fullname = properties.fullname or tfmdata.fullname -- names in the tfmdata although - local filename = properties.filename or tfmdata.filename -- that is not the right place to - local psname = properties.psname or tfmdata.psname -- pass them - local name = properties.name or tfmdata.name - -- - if not psname or psname == "" then - -- name used in pdf file as well as for selecting subfont in ttc/dfont - psname = fontname or (fullname and fonts.names.cleanname(fullname)) - end - target.fontname = fontname - target.fullname = fullname - target.filename = filename - target.psname = psname - target.name = name - -- - -- inspect(properties) - -- - properties.fontname = fontname - properties.fullname = fullname - properties.filename = filename - properties.psname = psname - properties.name = name - -- expansion (hz) - local expansion = parameters.expansion - if expansion then - target.stretch = expansion.stretch - target.shrink = expansion.shrink - target.step = expansion.step - target.auto_expand = expansion.auto - end - -- protrusion - local protrusion = parameters.protrusion - if protrusion then - target.auto_protrude = protrusion.auto - end - -- widening - local extendfactor = parameters.extendfactor or 0 - if extendfactor ~= 0 and extendfactor ~= 1 then - hdelta = hdelta * extendfactor - target.extend = extendfactor * 1000 -- extent ? - else - target.extend = 1000 -- extent ? - end - -- slanting - local slantfactor = parameters.slantfactor or 0 - if slantfactor ~= 0 then - target.slant = slantfactor * 1000 - else - target.slant = 0 - end - -- - targetparameters.factor = delta - targetparameters.hfactor = hdelta - targetparameters.vfactor = vdelta - targetparameters.size = scaledpoints - targetparameters.units = units - targetparameters.scaledpoints = askedscaledpoints - -- - local isvirtual = properties.virtualized or tfmdata.type == "virtual" - local hasquality = target.auto_expand or target.auto_protrude - local hasitalics = properties.hasitalics - local autoitalicamount = properties.autoitalicamount - local stackmath = not properties.nostackmath - local nonames = properties.noglyphnames - local nodemode = properties.mode == "node" - -- - if changed and not next(changed) then - changed = false - end - -- - target.type = isvirtual and "virtual" or "real" - -- - target.postprocessors = tfmdata.postprocessors - -- - local targetslant = (parameters.slant or parameters[1] or 0) - local targetspace = (parameters.space or parameters[2] or 0)*hdelta - local targetspace_stretch = (parameters.space_stretch or parameters[3] or 0)*hdelta - local targetspace_shrink = (parameters.space_shrink or parameters[4] or 0)*hdelta - local targetx_height = (parameters.x_height or parameters[5] or 0)*vdelta - local targetquad = (parameters.quad or parameters[6] or 0)*hdelta - local targetextra_space = (parameters.extra_space or parameters[7] or 0)*hdelta - -- - targetparameters.slant = targetslant -- slantperpoint - targetparameters.space = targetspace - targetparameters.space_stretch = targetspace_stretch - targetparameters.space_shrink = targetspace_shrink - targetparameters.x_height = targetx_height - targetparameters.quad = targetquad - targetparameters.extra_space = targetextra_space - -- - local ascender = parameters.ascender - if ascender then - targetparameters.ascender = delta * ascender - end - local descender = parameters.descender - if descender then - targetparameters.descender = delta * descender - end - -- - constructors.enhanceparameters(targetparameters) -- official copies for us - -- - local protrusionfactor = (targetquad ~= 0 and 1000/targetquad) or 0 - local scaledwidth = defaultwidth * hdelta - local scaledheight = defaultheight * vdelta - local scaleddepth = defaultdepth * vdelta - -- - if trace_defining then - report_defining("scaling by (%s,%s): name '%s', fullname: '%s', filename: '%s'", - hdelta,vdelta,name or "noname",fullname or "nofullname",filename or "nofilename") - end - -- - local hasmath = (properties.hasmath or next(mathparameters)) and true - if hasmath then - if trace_defining then - report_defining("math enabled for: name '%s', fullname: '%s', filename: '%s'", - name or "noname",fullname or "nofullname",filename or "nofilename") - end - constructors.assignmathparameters(target,tfmdata) -- does scaling and whatever is needed - properties.hasmath = true - target.nomath = false - target.MathConstants = target.mathparameters - else - if trace_defining then - report_defining("math disabled for: name '%s', fullname: '%s', filename: '%s'", - name or "noname",fullname or "nofullname",filename or "nofilename") - end - properties.hasmath = false - target.nomath = true - target.mathparameters = nil -- nop - end - -- - local italickey = "italic" - -- - -- some context specific trickery (this will move to a plugin) - -- - if hasmath then - -- the latest luatex can deal with it itself so we now disable this - -- mechanism here - -- - -- if properties.mathitalics then - -- italickey = "italic_correction" - -- if trace_defining then - -- report_defining("math italics disabled for: name '%s', fullname: '%s', filename: '%s'", - -- name or "noname",fullname or "nofullname",filename or "nofilename") - -- end - -- end - autoitalicamount = false -- new - else - if properties.textitalics then - italickey = "italic_correction" - if trace_defining then - report_defining("text italics disabled for: name '%s', fullname: '%s', filename: '%s'", - name or "noname",fullname or "nofullname",filename or "nofilename") - end - if properties.delaytextitalics then - autoitalicamount = false - end - end - end - -- - -- end of context specific trickery - -- - constructors.beforecopyingcharacters(target,tfmdata) - -- - local sharedkerns = { } - -- - -- we can have a dumb mode (basemode without math etc) that skips most - -- - for unicode, character in next, characters do - local chr, description, index, touni - if changed then - -- basemode hack (we try to catch missing tounicodes, e.g. needed for ssty in math cambria) - local c = changed[unicode] - if c then - description = descriptions[c] or descriptions[unicode] or character - character = characters[c] or character - index = description.index or c - if tounicode then - touni = tounicode[index] -- nb: index! - if not touni then -- goodie - local d = descriptions[unicode] or characters[unicode] - local i = d.index or unicode - touni = tounicode[i] -- nb: index! - end - end - else - description = descriptions[unicode] or character - index = description.index or unicode - if tounicode then - touni = tounicode[index] -- nb: index! - end - end - else - description = descriptions[unicode] or character - index = description.index or unicode - if tounicode then - touni = tounicode[index] -- nb: index! - end - end - local width = description.width - local height = description.height - local depth = description.depth - if width then width = hdelta*width else width = scaledwidth end - if height then height = vdelta*height else height = scaledheight end - -- if depth then depth = vdelta*depth else depth = scaleddepth end - if depth and depth ~= 0 then - depth = delta*depth - if nonames then - chr = { - index = index, - height = height, - depth = depth, - width = width, - } - else - chr = { - name = description.name, - index = index, - height = height, - depth = depth, - width = width, - } - end - else - -- this saves a little bit of memory time and memory, esp for big cjk fonts - if nonames then - chr = { - index = index, - height = height, - width = width, - } - else - chr = { - name = description.name, - index = index, - height = height, - width = width, - } - end - end - if touni then - chr.tounicode = touni - end - -- if trace_scaling then - -- report_defining("t=%s, u=%s, i=%s, n=%s c=%s",k,chr.tounicode or "",index or 0,description.name or '-',description.class or '-') - -- end - if hasquality then - -- we could move these calculations elsewhere (saves calculations) - local ve = character.expansion_factor - if ve then - chr.expansion_factor = ve*1000 -- expansionfactor, hm, can happen elsewhere - end - local vl = character.left_protruding - if vl then - chr.left_protruding = protrusionfactor*width*vl - end - local vr = character.right_protruding - if vr then - chr.right_protruding = protrusionfactor*width*vr - end - end - -- - if autoitalicamount then - local vi = description.italic - if not vi then - local vi = description.boundingbox[3] - description.width + autoitalicamount - if vi > 0 then -- < 0 indicates no overshoot or a very small auto italic - chr[italickey] = vi*hdelta - end - elseif vi ~= 0 then - chr[italickey] = vi*hdelta - end - elseif hasitalics then - local vi = description.italic - if vi and vi ~= 0 then - chr[italickey] = vi*hdelta - end - end - -- to be tested - if hasmath then - -- todo, just operate on descriptions.math - local vn = character.next - if vn then - chr.next = vn - -- if character.vert_variants or character.horiz_variants then - -- report_defining("glyph U+%05X has combination of next, vert_variants and horiz_variants",index) - -- end - else - local vv = character.vert_variants - if vv then - local t = { } - for i=1,#vv do - local vvi = vv[i] - t[i] = { - ["start"] = (vvi["start"] or 0)*vdelta, - ["end"] = (vvi["end"] or 0)*vdelta, - ["advance"] = (vvi["advance"] or 0)*vdelta, - ["extender"] = vvi["extender"], - ["glyph"] = vvi["glyph"], - } - end - chr.vert_variants = t - else - local hv = character.horiz_variants - if hv then - local t = { } - for i=1,#hv do - local hvi = hv[i] - t[i] = { - ["start"] = (hvi["start"] or 0)*hdelta, - ["end"] = (hvi["end"] or 0)*hdelta, - ["advance"] = (hvi["advance"] or 0)*hdelta, - ["extender"] = hvi["extender"], - ["glyph"] = hvi["glyph"], - } - end - chr.horiz_variants = t - end - end - end - local va = character.top_accent - if va then - chr.top_accent = vdelta*va - end - if stackmath then - local mk = character.mathkerns -- not in math ? - if mk then - local kerns = { } - local v = mk.top_right if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.top_right = k end - local v = mk.top_left if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.top_left = k end - local v = mk.bottom_left if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.bottom_left = k end - local v = mk.bottom_right if v then local k = { } for i=1,#v do local vi = v[i] - k[i] = { height = vdelta*vi.height, kern = vdelta*vi.kern } - end kerns.bottom_right = k end - chr.mathkern = kerns -- singular -> should be patched in luatex ! - end - end - end - if not nodemode then - local vk = character.kerns - if vk then - local s = sharedkerns[vk] - if not s then - s = { } - for k,v in next, vk do s[k] = v*hdelta end - sharedkerns[vk] = s - end - chr.kerns = s - end - local vl = character.ligatures - if vl then - if true then - chr.ligatures = vl -- shared - else - local tt = { } - for i,l in next, vl do - tt[i] = l - end - chr.ligatures = tt - end - end - end - if isvirtual then - local vc = character.commands - if vc then - -- we assume non scaled commands here - -- tricky .. we need to scale pseudo math glyphs too - -- which is why we deal with rules too - local ok = false - for i=1,#vc do - local key = vc[i][1] - if key == "right" or key == "down" then - ok = true - break - end - end - if ok then - local tt = { } - for i=1,#vc do - local ivc = vc[i] - local key = ivc[1] - if key == "right" then - tt[i] = { key, ivc[2]*hdelta } - elseif key == "down" then - tt[i] = { key, ivc[2]*vdelta } - elseif key == "rule" then - tt[i] = { key, ivc[2]*vdelta, ivc[3]*hdelta } - else -- not comment - tt[i] = ivc -- shared since in cache and untouched - end - end - chr.commands = tt - else - chr.commands = vc - end - chr.index = nil - end - end - targetcharacters[unicode] = chr - end - -- - constructors.aftercopyingcharacters(target,tfmdata) - -- - return target -end - -function constructors.finalize(tfmdata) - if tfmdata.properties and tfmdata.properties.finalized then - return - end - -- - if not tfmdata.characters then - return nil - end - -- - if not tfmdata.goodies then - tfmdata.goodies = { } -- context specific - end - -- - local parameters = tfmdata.parameters - if not parameters then - return nil - end - -- - if not parameters.expansion then - parameters.expansion = { - stretch = tfmdata.stretch or 0, - shrink = tfmdata.shrink or 0, - step = tfmdata.step or 0, - auto = tfmdata.auto_expand or false, - } - end - -- - if not parameters.protrusion then - parameters.protrusion = { - auto = auto_protrude - } - end - -- - if not parameters.size then - parameters.size = tfmdata.size - end - -- - if not parameters.extendfactor then - parameters.extendfactor = tfmdata.extend or 0 - end - -- - if not parameters.slantfactor then - parameters.slantfactor = tfmdata.slant or 0 - end - -- - if not parameters.designsize then - parameters.designsize = tfmdata.designsize or 655360 - end - -- - if not parameters.units then - parameters.units = tfmdata.units_per_em or 1000 - end - -- - if not tfmdata.descriptions then - local descriptions = { } -- yes or no - setmetatableindex(descriptions, function(t,k) local v = { } t[k] = v return v end) - tfmdata.descriptions = descriptions - end - -- - local properties = tfmdata.properties - if not properties then - properties = { } - tfmdata.properties = properties - end - -- - if not properties.virtualized then - properties.virtualized = tfmdata.type == "virtual" - end - -- - if not tfmdata.properties then - tfmdata.properties = { - fontname = tfmdata.fontname, - filename = tfmdata.filename, - fullname = tfmdata.fullname, - name = tfmdata.name, - psname = tfmdata.psname, - -- - encodingbytes = tfmdata.encodingbytes or 1, - embedding = tfmdata.embedding or "subset", - tounicode = tfmdata.tounicode or 1, - cidinfo = tfmdata.cidinfo or nil, - format = tfmdata.format or "type1", - direction = tfmdata.direction or 0, - } - end - if not tfmdata.resources then - tfmdata.resources = { } - end - if not tfmdata.shared then - tfmdata.shared = { } - end - -- - -- tfmdata.fonts - -- tfmdata.unscaled - -- - if not properties.hasmath then - properties.hasmath = not tfmdata.nomath - end - -- - tfmdata.MathConstants = nil - tfmdata.postprocessors = nil - -- - tfmdata.fontname = nil - tfmdata.filename = nil - tfmdata.fullname = nil - tfmdata.name = nil -- most tricky part - tfmdata.psname = nil - -- - tfmdata.encodingbytes = nil - tfmdata.embedding = nil - tfmdata.tounicode = nil - tfmdata.cidinfo = nil - tfmdata.format = nil - tfmdata.direction = nil - tfmdata.type = nil - tfmdata.nomath = nil - tfmdata.designsize = nil - -- - tfmdata.size = nil - tfmdata.stretch = nil - tfmdata.shrink = nil - tfmdata.step = nil - tfmdata.auto_expand = nil - tfmdata.auto_protrude = nil - tfmdata.extend = nil - tfmdata.slant = nil - tfmdata.units_per_em = nil - -- - properties.finalized = true - -- - return tfmdata -end - ---[[ldx-- -

A unique hash value is generated by:

---ldx]]-- - -local hashmethods = { } -constructors.hashmethods = hashmethods - -function constructors.hashfeatures(specification) -- will be overloaded - local features = specification.features - if features then - local t, tn = { }, 0 - for category, list in next, features do - if next(list) then - local hasher = hashmethods[category] - if hasher then - local hash = hasher(list) - if hash then - tn = tn + 1 - t[tn] = category .. ":" .. hash - end - end - end - end - if tn > 0 then - return concat(t," & ") - end - end - return "unknown" -end - -hashmethods.normal = function(list) - local s = { } - local n = 0 - for k, v in next, list do - if k ~= "number" and k ~= "features" then -- I need to figure this out, features - n = n + 1 - s[n] = k - end - end - if n > 0 then - sort(s) - for i=1,n do - local k = s[i] - s[i] = k .. '=' .. tostring(list[k]) - end - return concat(s,"+") - end -end - ---[[ldx-- -

In principle we can share tfm tables when we are in node for a font, but then -we need to define a font switch as an id/attr switch which is no fun, so in that -case users can best use dynamic features ... so, we will not use that speedup. Okay, -when we get rid of base mode we can optimize even further by sharing, but then we -loose our testcases for .

---ldx]]-- - -function constructors.hashinstance(specification,force) - local hash, size, fallbacks = specification.hash, specification.size, specification.fallbacks - if force or not hash then - hash = constructors.hashfeatures(specification) - specification.hash = hash - end - if size < 1000 and designsizes[hash] then - size = math.round(constructors.scaled(size,designsizes[hash])) - specification.size = size - end - -- local mathsize = specification.mathsize or 0 - -- if mathsize > 0 then - -- local textsize = specification.textsize - -- if fallbacks then - -- return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ] @ ' .. fallbacks - -- else - -- return hash .. ' @ ' .. tostring(size) .. ' [ ' .. tostring(mathsize) .. ' : ' .. tostring(textsize) .. ' ]' - -- end - -- else - if fallbacks then - return hash .. ' @ ' .. tostring(size) .. ' @ ' .. fallbacks - else - return hash .. ' @ ' .. tostring(size) - end - -- end -end - -function constructors.setname(tfmdata,specification) -- todo: get specification from tfmdata - if constructors.namemode == "specification" then - -- not to be used in context ! - local specname = specification.specification - if specname then - tfmdata.properties.name = specname - if trace_defining then - report_otf("overloaded fontname: '%s'",specname) - end - end - end -end - -function constructors.checkedfilename(data) - local foundfilename = data.foundfilename - if not foundfilename then - local askedfilename = data.filename or "" - if askedfilename ~= "" then - askedfilename = resolvers.resolve(askedfilename) -- no shortcut - foundfilename = resolvers.findbinfile(askedfilename,"") or "" - if foundfilename == "" then - report_defining("source file '%s' is not found",askedfilename) - foundfilename = resolvers.findbinfile(file.basename(askedfilename),"") or "" - if foundfilename ~= "" then - report_defining("using source file '%s' (cache mismatch)",foundfilename) - end - end - end - data.foundfilename = foundfilename - end - return foundfilename -end - -local formats = allocate() -fonts.formats = formats - -setmetatableindex(formats, function(t,k) - local l = lower(k) - if rawget(t,k) then - t[k] = l - return l - end - return rawget(t,file.suffix(l)) -end) - -local locations = { } - -local function setindeed(mode,target,group,name,action,position) - local t = target[mode] - if not t then - report_defining("fatal error in setting feature '%s', group '%s', mode '%s'",name or "?",group or "?",mode) - os.exit() - elseif position then - -- todo: remove existing - insert(t, position, { name = name, action = action }) - else - for i=1,#t do - local ti = t[i] - if ti.name == name then - ti.action = action - return - end - end - insert(t, { name = name, action = action }) - end -end - -local function set(group,name,target,source) - target = target[group] - if not target then - report_defining("fatal target error in setting feature '%s', group '%s'",name or "?",group or "?") - os.exit() - end - local source = source[group] - if not source then - report_defining("fatal source error in setting feature '%s', group '%s'",name or "?",group or "?") - os.exit() - end - local node = source.node - local base = source.base - local position = source.position - if node then - setindeed("node",target,group,name,node,position) - end - if base then - setindeed("base",target,group,name,base,position) - end -end - -local function register(where,specification) - local name = specification.name - if name and name ~= "" then - local default = specification.default - local description = specification.description - local initializers = specification.initializers - local processors = specification.processors - local manipulators = specification.manipulators - local modechecker = specification.modechecker - if default then - where.defaults[name] = default - end - if description and description ~= "" then - where.descriptions[name] = description - end - if initializers then - set('initializers',name,where,specification) - end - if processors then - set('processors', name,where,specification) - end - if manipulators then - set('manipulators',name,where,specification) - end - if modechecker then - where.modechecker = modechecker - end - end -end - -constructors.registerfeature = register - -function constructors.getfeatureaction(what,where,mode,name) - what = handlers[what].features - if what then - where = what[where] - if where then - mode = where[mode] - if mode then - for i=1,#mode do - local m = mode[i] - if m.name == name then - return m.action - end - end - end - end - end -end - -function constructors.newhandler(what) -- could be a metatable newindex - local handler = handlers[what] - if not handler then - handler = { } - handlers[what] = handler - end - return handler -end - -function constructors.newfeatures(what) -- could be a metatable newindex - local handler = handlers[what] - local features = handler.features - if not features then - local tables = handler.tables -- can be preloaded - local statistics = handler.statistics -- can be preloaded - features = allocate { - defaults = { }, - descriptions = tables and tables.features or { }, - used = statistics and statistics.usedfeatures or { }, - initializers = { base = { }, node = { } }, - processors = { base = { }, node = { } }, - manipulators = { base = { }, node = { } }, - } - features.register = function(specification) return register(features,specification) end - handler.features = features -- will also become hidden - end - return features -end - ---[[ldx-- -

We need to check for default features. For this we provide -a helper function.

---ldx]]-- - -function constructors.checkedfeatures(what,features) - local defaults = handlers[what].features.defaults - if features and next(features) then - features = fastcopy(features) -- can be inherited (mt) but then no loops possible - for key, value in next, defaults do - if features[key] == nil then - features[key] = value - end - end - return features - else - return fastcopy(defaults) -- we can change features in place - end -end - --- before scaling - -function constructors.initializefeatures(what,tfmdata,features,trace,report) - if features and next(features) then - local properties = tfmdata.properties or { } -- brrr - local whathandler = handlers[what] - local whatfeatures = whathandler.features - local whatinitializers = whatfeatures.initializers - local whatmodechecker = whatfeatures.modechecker - -- properties.mode can be enforces (for instance in font-otd) - local mode = properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base" - properties.mode = mode -- also status - features.mode = mode -- both properties.mode or features.mode can be changed - -- - local done = { } - while true do - local redo = false - local initializers = whatfeatures.initializers[mode] - if initializers then - for i=1,#initializers do - local step = initializers[i] - local feature = step.name --- we could intercept mode here .. needs a rewrite of this whole loop then but it's cleaner that way - local value = features[feature] - if not value then - -- disabled - elseif done[feature] then - -- already done - else - local action = step.action - if trace then - report("initializing feature %s to %s for mode %s for font %s",feature, - tostring(value),mode or 'unknown', tfmdata.properties.fullname or 'unknown') - end - action(tfmdata,value,features) -- can set mode (e.g. goodies) so it can trigger a restart - if mode ~= properties.mode or mode ~= features.mode then - if whatmodechecker then - properties.mode = whatmodechecker(tfmdata,features,properties.mode) -- force checking - features.mode = properties.mode - end - if mode ~= properties.mode then - mode = properties.mode - redo = true - end - end - done[feature] = true - end - if redo then - break - end - end - if not redo then - break - end - else - break - end - end - properties.mode = mode -- to be sure - return true - else - return false - end -end - --- while typesetting - -function constructors.collectprocessors(what,tfmdata,features,trace,report) - local processes, nofprocesses = { }, 0 - if features and next(features) then - local properties = tfmdata.properties - local whathandler = handlers[what] - local whatfeatures = whathandler.features - local whatprocessors = whatfeatures.processors - local processors = whatprocessors[properties.mode] - if processors then - for i=1,#processors do - local step = processors[i] - local feature = step.name - if features[feature] then - local action = step.action - if trace then - report("installing feature processor %s for mode %s for font %s",feature, - mode or 'unknown', tfmdata.properties.fullname or 'unknown') - end - if action then - nofprocesses = nofprocesses + 1 - processes[nofprocesses] = action - end - end - end - elseif trace then - report("no feature processors for mode %s for font %s", - mode or 'unknown', tfmdata.properties.fullname or 'unknown') - end - end - return processes -end - --- after scaling - -function constructors.applymanipulators(what,tfmdata,features,trace,report) - if features and next(features) then - local properties = tfmdata.properties - local whathandler = handlers[what] - local whatfeatures = whathandler.features - local whatmanipulators = whatfeatures.manipulators - local manipulators = whatmanipulators[properties.mode] - if manipulators then - for i=1,#manipulators do - local step = manipulators[i] - local feature = step.name - local value = features[feature] - if value then - local action = step.action - if trace then - report("applying feature manipulator %s for mode %s for font %s",feature, - mode or 'unknown', tfmdata.properties.fullname or 'unknown') - end - if action then - action(tfmdata,feature,value) - end - end - end - end - end -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luatex-font-enc'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() -end - -local fonts = fonts -fonts.encodings = { } -fonts.encodings.agl = { } - -setmetatable(fonts.encodings.agl, { __index = function(t,k) - if k == "unicodes" then - texio.write(" ") - local unicodes = dofile(resolvers.findfile("font-age.lua")) - fonts.encodings.agl = { unicodes = unicodes } - return unicodes - else - return nil - end -end }) - - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-cid'] = { - version = 1.001, - comment = "companion to font-otf.lua (cidmaps)", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local format, match, lower = string.format, string.match, string.lower -local tonumber = tonumber -local P, S, R, C, V, lpegmatch = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.match - -local fonts, logs, trackers = fonts, logs, trackers - -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) - -local report_otf = logs.reporter("fonts","otf loading") - -local cid = { } -fonts.cid = cid - -local cidmap = { } -local cidmax = 10 - --- original string parser: 0.109, lpeg parser: 0.036 seconds for Adobe-CNS1-4.cidmap --- --- 18964 18964 (leader) --- 0 /.notdef --- 1..95 0020 --- 99 3000 - -local number = C(R("09","af","AF")^1) -local space = S(" \n\r\t") -local spaces = space^0 -local period = P(".") -local periods = period * period -local name = P("/") * C((1-space)^1) - -local unicodes, names = { }, { } -- we could use Carg now - -local function do_one(a,b) - unicodes[tonumber(a)] = tonumber(b,16) -end - -local function do_range(a,b,c) - c = tonumber(c,16) - for i=tonumber(a),tonumber(b) do - unicodes[i] = c - c = c + 1 - end -end - -local function do_name(a,b) - names[tonumber(a)] = b -end - -local grammar = P { "start", - start = number * spaces * number * V("series"), - series = (spaces * (V("one") + V("range") + V("named")))^1, - one = (number * spaces * number) / do_one, - range = (number * periods * number * spaces * number) / do_range, - named = (number * spaces * name) / do_name -} - -local function loadcidfile(filename) - local data = io.loaddata(filename) - if data then - unicodes, names = { }, { } - lpegmatch(grammar,data) - local supplement, registry, ordering = match(filename,"^(.-)%-(.-)%-()%.(.-)$") - return { - supplement = supplement, - registry = registry, - ordering = ordering, - filename = filename, - unicodes = unicodes, - names = names - } - end -end - -cid.loadfile = loadcidfile -- we use the frozen variant -local template = "%s-%s-%s.cidmap" - -local function locate(registry,ordering,supplement) - local filename = format(template,registry,ordering,supplement) - local hashname = lower(filename) - local found = cidmap[hashname] - if not found then - if trace_loading then - report_otf("checking cidmap, registry: %s, ordering: %s, supplement: %s, filename: %s",registry,ordering,supplement,filename) - end - local fullname = resolvers.findfile(filename,'cid') or "" - if fullname ~= "" then - found = loadcidfile(fullname) - if found then - if trace_loading then - report_otf("using cidmap file %s",filename) - end - cidmap[hashname] = found - found.usedname = file.basename(filename) - end - end - end - return found -end - --- cf Arthur R. we can safely scan upwards since cids are downward compatible - -function cid.getmap(specification) - if not specification then - report_otf("invalid cidinfo specification (table expected)") - return - end - local registry = specification.registry - local ordering = specification.ordering - local supplement = specification.supplement - -- check for already loaded file - local filename = format(registry,ordering,supplement) - local found = cidmap[lower(filename)] - if found then - return found - end - if trace_loading then - report_otf("needed cidmap, registry: %s, ordering: %s, supplement: %s",registry,ordering,supplement) - end - found = locate(registry,ordering,supplement) - if not found then - local supnum = tonumber(supplement) - local cidnum = nil - -- next highest (alternatively we could start high) - if supnum < cidmax then - for s=supnum+1,cidmax do - local c = locate(registry,ordering,s) - if c then - found, cidnum = c, s - break - end - end - end - -- next lowest (least worse fit) - if not found and supnum > 0 then - for s=supnum-1,0,-1 do - local c = locate(registry,ordering,s) - if c then - found, cidnum = c, s - break - end - end - end - -- prevent further lookups -- somewhat tricky - registry = lower(registry) - ordering = lower(ordering) - if found and cidnum > 0 then - for s=0,cidnum-1 do - local filename = format(template,registry,ordering,s) - if not cidmap[filename] then - cidmap[filename] = found - end - end - end - end - return found -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-map'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local tonumber = tonumber - -local match, format, find, concat, gsub, lower = string.match, string.format, string.find, table.concat, string.gsub, string.lower -local P, R, S, C, Ct, Cc, lpegmatch = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.match -local utfbyte = utf.byte -local floor = math.floor - -local trace_loading = false trackers.register("fonts.loading", function(v) trace_loading = v end) -local trace_mapping = false trackers.register("fonts.mapping", function(v) trace_unimapping = v end) - -local report_fonts = logs.reporter("fonts","loading") -- not otf only - -local fonts = fonts -local mappings = fonts.mappings or { } -fonts.mappings = mappings - ---[[ldx-- -

Eventually this code will disappear because map files are kind -of obsolete. Some code may move to runtime or auxiliary modules.

-

The name to unciode related code will stay of course.

---ldx]]-- - -local function loadlumtable(filename) -- will move to font goodies - local lumname = file.replacesuffix(file.basename(filename),"lum") - local lumfile = resolvers.findfile(lumname,"map") or "" - if lumfile ~= "" and lfs.isfile(lumfile) then - if trace_loading or trace_mapping then - report_fonts("enhance: loading %s ",lumfile) - end - lumunic = dofile(lumfile) - return lumunic, lumfile - end -end - -local hex = R("AF","09") -local hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end -local hexsix = (hex^1) / function(s) return tonumber(s,16) end -local dec = (R("09")^1) / tonumber -local period = P(".") -local unicode = P("uni") * (hexfour * (period + P(-1)) * Cc(false) + Ct(hexfour^1) * Cc(true)) -local ucode = P("u") * (hexsix * (period + P(-1)) * Cc(false) + Ct(hexsix ^1) * Cc(true)) -local index = P("index") * dec * Cc(false) - -local parser = unicode + ucode + index - -local parsers = { } - -local function makenameparser(str) - if not str or str == "" then - return parser - else - local p = parsers[str] - if not p then - p = P(str) * period * dec * Cc(false) - parsers[str] = p - end - return p - end -end - --- local parser = mappings.makenameparser("Japan1") --- local parser = mappings.makenameparser() --- local function test(str) --- local b, a = lpegmatch(parser,str) --- print((a and table.serialize(b)) or b) --- end --- test("a.sc") --- test("a") --- test("uni1234") --- test("uni1234.xx") --- test("uni12349876") --- test("index1234") --- test("Japan1.123") - -local function tounicode16(unicode) - if unicode < 0x10000 then - return format("%04X",unicode) - elseif unicode < 0x1FFFFFFFFF then - return format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00) - else - report_fonts("can't convert %s into tounicode",unicode) - end -end - -local function tounicode16sequence(unicodes) - local t = { } - for l=1,#unicodes do - local unicode = unicodes[l] - if unicode < 0x10000 then - t[l] = format("%04X",unicode) - elseif unicode < 0x1FFFFFFFFF then - t[l] = format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00) - else - report_fonts ("can't convert %s into tounicode",unicode) - end - end - return concat(t) -end - -local function fromunicode16(str) - if #str == 4 then - return tonumber(str,16) - else - local l, r = match(str,"(....)(....)") - return (tonumber(l,16)- 0xD800)*0x400 + tonumber(r,16) - 0xDC00 - end -end - ---~ This is quite a bit faster but at the cost of some memory but if we ---~ do this we will also use it elsewhere so let's not follow this route ---~ now. I might use this method in the plain variant (no caching there) ---~ but then I need a flag that distinguishes between code branches. ---~ ---~ local cache = { } ---~ ---~ function mappings.tounicode16(unicode) ---~ local s = cache[unicode] ---~ if not s then ---~ if unicode < 0x10000 then ---~ s = format("%04X",unicode) ---~ else ---~ s = format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00) ---~ end ---~ cache[unicode] = s ---~ end ---~ return s ---~ end - -mappings.loadlumtable = loadlumtable -mappings.makenameparser = makenameparser -mappings.tounicode16 = tounicode16 -mappings.tounicode16sequence = tounicode16sequence -mappings.fromunicode16 = fromunicode16 - -local separator = S("_.") -local other = C((1 - separator)^1) -local ligsplitter = Ct(other * (separator * other)^0) - ---~ print(table.serialize(lpegmatch(ligsplitter,"this"))) ---~ print(table.serialize(lpegmatch(ligsplitter,"this.that"))) ---~ print(table.serialize(lpegmatch(ligsplitter,"japan1.123"))) ---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more"))) ---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more.that"))) - -function mappings.addtounicode(data,filename) - local resources = data.resources - local properties = data.properties - local descriptions = data.descriptions - local unicodes = resources.unicodes - if not unicodes then - return - end - -- we need to move this code - unicodes['space'] = unicodes['space'] or 32 - unicodes['hyphen'] = unicodes['hyphen'] or 45 - unicodes['zwj'] = unicodes['zwj'] or 0x200D - unicodes['zwnj'] = unicodes['zwnj'] or 0x200C - -- the tounicode mapping is sparse and only needed for alternatives - local private = fonts.constructors.privateoffset - local unknown = format("%04X",utfbyte("?")) - local unicodevector = fonts.encodings.agl.unicodes -- loaded runtime in context - local tounicode = { } - local originals = { } - resources.tounicode = tounicode - resources.originals = originals - local lumunic, uparser, oparser - local cidinfo, cidnames, cidcodes, usedmap - if false then -- will become an option - lumunic = loadlumtable(filename) - lumunic = lumunic and lumunic.tounicode - end - -- - cidinfo = properties.cidinfo - usedmap = cidinfo and fonts.cid.getmap(cidinfo) - -- - if usedmap then - oparser = usedmap and makenameparser(cidinfo.ordering) - cidnames = usedmap.names - cidcodes = usedmap.unicodes - end - uparser = makenameparser() - local ns, nl = 0, 0 - for unic, glyph in next, descriptions do - local index = glyph.index - local name = glyph.name - if unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then - local unicode = lumunic and lumunic[name] or unicodevector[name] - if unicode then - originals[index] = unicode - tounicode[index] = tounicode16(unicode) - ns = ns + 1 - end - -- cidmap heuristics, beware, there is no guarantee for a match unless - -- the chain resolves - if (not unicode) and usedmap then - local foundindex = lpegmatch(oparser,name) - if foundindex then - unicode = cidcodes[foundindex] -- name to number - if unicode then - originals[index] = unicode - tounicode[index] = tounicode16(unicode) - ns = ns + 1 - else - local reference = cidnames[foundindex] -- number to name - if reference then - local foundindex = lpegmatch(oparser,reference) - if foundindex then - unicode = cidcodes[foundindex] - if unicode then - originals[index] = unicode - tounicode[index] = tounicode16(unicode) - ns = ns + 1 - end - end - if not unicode then - local foundcodes, multiple = lpegmatch(uparser,reference) - if foundcodes then - originals[index] = foundcodes - if multiple then - tounicode[index] = tounicode16sequence(foundcodes) - nl = nl + 1 - unicode = true - else - tounicode[index] = tounicode16(foundcodes) - ns = ns + 1 - unicode = foundcodes - end - end - end - end - end - end - end - -- a.whatever or a_b_c.whatever or a_b_c (no numbers) - if not unicode then - local split = lpegmatch(ligsplitter,name) - local nplit = split and #split or 0 - if nplit >= 2 then - local t, n = { }, 0 - for l=1,nplit do - local base = split[l] - local u = unicodes[base] or unicodevector[base] - if not u then - break - elseif type(u) == "table" then - n = n + 1 - t[n] = u[1] - else - n = n + 1 - t[n] = u - end - end - if n == 0 then -- done then - -- nothing - elseif n == 1 then - originals[index] = t[1] - tounicode[index] = tounicode16(t[1]) - else - originals[index] = t - tounicode[index] = tounicode16sequence(t) - end - nl = nl + 1 - unicode = true - else - -- skip: already checked and we don't want privates here - end - end - -- last resort (we might need to catch private here as well) - if not unicode then - local foundcodes, multiple = lpegmatch(uparser,name) - if foundcodes then - if multiple then - originals[index] = foundcodes - tounicode[index] = tounicode16sequence(foundcodes) - nl = nl + 1 - unicode = true - else - originals[index] = foundcodes - tounicode[index] = tounicode16(foundcodes) - ns = ns + 1 - unicode = foundcodes - end - end - end - -- if not unicode then - -- originals[index] = 0xFFFD - -- tounicode[index] = "FFFD" - -- end - end - end - if trace_mapping then - for unic, glyph in table.sortedhash(descriptions) do - local name = glyph.name - local index = glyph.index - local toun = tounicode[index] - if toun then - report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X, tounicode: %s",index,name,unic,toun) - else - report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X",index,name,unic) - end - end - end - if trace_loading and (ns > 0 or nl > 0) then - report_fonts("enhance: %s tounicode entries added (%s ligatures)",nl+ns, ns) - end -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luatex-fonts-syn'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() -end - --- Generic font names support. --- --- Watch out, the version number is the same as the one used in --- the mtx-fonts.lua function scripts.fonts.names as we use a --- simplified font database in the plain solution and by using --- a different number we're less dependent on context. --- --- mtxrun --script font --reload --simple --- --- The format of the file is as follows: --- --- return { --- ["version"] = 1.001, --- ["mappings"] = { --- ["somettcfontone"] = { "Some TTC Font One", "SomeFontA.ttc", 1 }, --- ["somettcfonttwo"] = { "Some TTC Font Two", "SomeFontA.ttc", 2 }, --- ["somettffont"] = { "Some TTF Font", "SomeFontB.ttf" }, --- ["someotffont"] = { "Some OTF Font", "SomeFontC.otf" }, --- }, --- } - -local fonts = fonts -fonts.names = fonts.names or { } - -fonts.names.version = 1.001 -- not the same as in context -fonts.names.basename = "luatex-fonts-names.lua" -fonts.names.new_to_old = { } -fonts.names.old_to_new = { } - -local data, loaded = nil, false - -local fileformats = { "lua", "tex", "other text files" } - -function fonts.names.resolve(name,sub) - if not loaded then - local basename = fonts.names.basename - if basename and basename ~= "" then - for i=1,#fileformats do - local format = fileformats[i] - local foundname = resolvers.findfile(basename,format) or "" - if foundname ~= "" then - data = dofile(foundname) - texio.write("") - break - end - end - end - loaded = true - end - if type(data) == "table" and data.version == fonts.names.version then - local condensed = string.gsub(string.lower(name),"[^%a%d]","") - local found = data.mappings and data.mappings[condensed] - if found then - local fontname, filename, subfont = found[1], found[2], found[3] - if subfont then - return filename, fontname - else - return filename, false - end - else - return name, false -- fallback to filename - end - end -end - -fonts.names.resolvespec = fonts.names.resolve -- only supported in mkiv - -function fonts.names.getfilename(askedname,suffix) -- only supported in mkiv - return "" -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luatex-fonts-tfm'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() -end - -local fonts = fonts -local tfm = { } -fonts.handlers.tfm = tfm -fonts.formats.tfm = "type1" -- we need to have at least a value here - -function fonts.readers.tfm(specification) - local fullname = specification.filename or "" - if fullname == "" then - local forced = specification.forced or "" - if forced ~= "" then - fullname = specification.name .. "." .. forced - else - fullname = specification.name - end - end - local foundname = resolvers.findbinfile(fullname, 'tfm') or "" - if foundname == "" then - foundname = resolvers.findbinfile(fullname, 'ofm') or "" - end - if foundname ~= "" then - specification.filename = foundname - specification.format = "ofm" - return font.read_tfm(specification.filename,specification.size) - end -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-oti'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local lower = string.lower - -local fonts = fonts -local constructors = fonts.constructors - -local otf = constructors.newhandler("otf") -local otffeatures = constructors.newfeatures("otf") -local otftables = otf.tables -local registerotffeature = otffeatures.register - -local allocate = utilities.storage.allocate - -registerotffeature { - name = "features", - description = "initialization of feature handler", - default = true, -} - --- these are later hooked into node and base initializaters - -local function setmode(tfmdata,value) - if value then - tfmdata.properties.mode = lower(value) - end -end - -local function setlanguage(tfmdata,value) - if value then - local cleanvalue = lower(value) - local languages = otftables and otftables.languages - local properties = tfmdata.properties - if not languages then - properties.language = cleanvalue - elseif languages[value] then - properties.language = cleanvalue - else - properties.language = "dflt" - end - end -end - -local function setscript(tfmdata,value) - if value then - local cleanvalue = lower(value) - local scripts = otftables and otftables.scripts - local properties = tfmdata.properties - if not scripts then - properties.script = cleanvalue - elseif scripts[value] then - properties.script = cleanvalue - else - properties.script = "dflt" - end - end -end - -registerotffeature { - name = "mode", - description = "mode", - initializers = { - base = setmode, - node = setmode, - } -} - -registerotffeature { - name = "language", - description = "language", - initializers = { - base = setlanguage, - node = setlanguage, - } -} - -registerotffeature { - name = "script", - description = "script", - initializers = { - base = setscript, - node = setscript, - } -} - - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-otf'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - --- langs -> languages enz --- anchor_classes vs kernclasses --- modification/creationtime in subfont is runtime dus zinloos --- to_table -> totable --- ascent descent - --- more checking against low level calls of functions - -local utfbyte = utf.byte -local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip -local type, next, tonumber, tostring = type, next, tonumber, tostring -local abs = math.abs -local getn = table.getn -local lpegmatch = lpeg.match -local reversed, concat, remove = table.reversed, table.concat, table.remove -local ioflush = io.flush -local fastcopy, tohash, derivetable = table.fastcopy, table.tohash, table.derive - -local allocate = utilities.storage.allocate -local registertracker = trackers.register -local registerdirective = directives.register -local starttiming = statistics.starttiming -local stoptiming = statistics.stoptiming -local elapsedtime = statistics.elapsedtime -local findbinfile = resolvers.findbinfile - -local trace_private = false registertracker("otf.private", function(v) trace_private = v end) -local trace_loading = false registertracker("otf.loading", function(v) trace_loading = v end) -local trace_features = false registertracker("otf.features", function(v) trace_features = v end) -local trace_dynamics = false registertracker("otf.dynamics", function(v) trace_dynamics = v end) -local trace_sequences = false registertracker("otf.sequences", function(v) trace_sequences = v end) -local trace_markwidth = false registertracker("otf.markwidth", function(v) trace_markwidth = v end) -local trace_defining = false registertracker("fonts.defining", function(v) trace_defining = v end) - -local report_otf = logs.reporter("fonts","otf loading") - -local fonts = fonts -local otf = fonts.handlers.otf - -otf.glists = { "gsub", "gpos" } - -otf.version = 2.741 -- beware: also sync font-mis.lua -otf.cache = containers.define("fonts", "otf", otf.version, true) - -local fontdata = fonts.hashes.identifiers -local chardata = characters and characters.data -- not used - -local otffeatures = fonts.constructors.newfeatures("otf") -local registerotffeature = otffeatures.register - -local enhancers = allocate() -otf.enhancers = enhancers -local patches = { } -enhancers.patches = patches - -local definers = fonts.definers -local readers = fonts.readers -local constructors = fonts.constructors - -local forceload = false -local cleanup = 0 -- mk: 0=885M 1=765M 2=735M (regular run 730M) -local usemetatables = false -- .4 slower on mk but 30 M less mem so we might change the default -- will be directive -local packdata = true -local syncspace = true -local forcenotdef = false - -local wildcard = "*" -local default = "dflt" - -local fontloaderfields = fontloader.fields -local mainfields = nil -local glyphfields = nil -- not used yet - -registerdirective("fonts.otf.loader.cleanup", function(v) cleanup = tonumber(v) or (v and 1) or 0 end) -registerdirective("fonts.otf.loader.force", function(v) forceload = v end) -registerdirective("fonts.otf.loader.usemetatables", function(v) usemetatables = v end) -registerdirective("fonts.otf.loader.pack", function(v) packdata = v end) -registerdirective("fonts.otf.loader.syncspace", function(v) syncspace = v end) -registerdirective("fonts.otf.loader.forcenotdef", function(v) forcenotdef = v end) - -local function load_featurefile(raw,featurefile) - if featurefile and featurefile ~= "" then - if trace_loading then - report_otf("featurefile: %s", featurefile) - end - fontloader.apply_featurefile(raw, featurefile) - end -end - -local function showfeatureorder(rawdata,filename) - local sequences = rawdata.resources.sequences - if sequences and #sequences > 0 then - if trace_loading then - report_otf("font %s has %s sequences",filename,#sequences) - report_otf(" ") - end - for nos=1,#sequences do - local sequence = sequences[nos] - local typ = sequence.type or "no-type" - local name = sequence.name or "no-name" - local subtables = sequence.subtables or { "no-subtables" } - local features = sequence.features - if trace_loading then - report_otf("%3i %-15s %-20s [%s]",nos,name,typ,concat(subtables,",")) - end - if features then - for feature, scripts in next, features do - local tt = { } - if type(scripts) == "table" then - for script, languages in next, scripts do - local ttt = { } - for language, _ in next, languages do - ttt[#ttt+1] = language - end - tt[#tt+1] = format("[%s: %s]",script,concat(ttt," ")) - end - if trace_loading then - report_otf(" %s: %s",feature,concat(tt," ")) - end - else - if trace_loading then - report_otf(" %s: %s",feature,tostring(scripts)) - end - end - end - end - end - if trace_loading then - report_otf("\n") - end - elseif trace_loading then - report_otf("font %s has no sequences",filename) - end -end - ---[[ldx-- -

We start with a lot of tables and related functions.

---ldx]]-- - -local valid_fields = table.tohash { - -- "anchor_classes", - "ascent", - -- "cache_version", - "cidinfo", - "copyright", - -- "creationtime", - "descent", - "design_range_bottom", - "design_range_top", - "design_size", - "encodingchanged", - "extrema_bound", - "familyname", - "fontname", - "fontname", - "fontstyle_id", - "fontstyle_name", - "fullname", - -- "glyphs", - "hasvmetrics", - -- "head_optimized_for_cleartype", - "horiz_base", - "issans", - "isserif", - "italicangle", - -- "kerns", - -- "lookups", - "macstyle", - -- "modificationtime", - "onlybitmaps", - "origname", - "os2_version", - "pfminfo", - -- "private", - "serifcheck", - "sfd_version", - -- "size", - "strokedfont", - "strokewidth", - -- "subfonts", - "table_version", - -- "tables", - -- "ttf_tab_saved", - "ttf_tables", - "uni_interp", - "uniqueid", - "units_per_em", - "upos", - "use_typo_metrics", - "uwidth", - -- "validation_state", - "version", - "vert_base", - "weight", - "weight_width_slope_only", - -- "xuid", -} - -local ordered_enhancers = { - "prepare tables", - "prepare glyphs", - "prepare lookups", - - "analyze glyphs", - "analyze math", - - "prepare tounicode", -- maybe merge with prepare - - "reorganize lookups", - "reorganize mark classes", - "reorganize anchor classes", - - "reorganize glyph kerns", - "reorganize glyph lookups", - "reorganize glyph anchors", - - "merge kern classes", - - "reorganize features", - "reorganize subtables", - - "check glyphs", - "check metadata", - "check extra features", -- after metadata - - "add duplicates", - "check encoding", - - "cleanup tables", -} - ---[[ldx-- -

Here we go.

---ldx]]-- - -local actions = allocate() -local before = allocate() -local after = allocate() - -patches.before = before -patches.after = after - -local function enhance(name,data,filename,raw) - local enhancer = actions[name] - if enhancer then - if trace_loading then - report_otf("enhance: %s (%s)",name,filename) - ioflush() - end - enhancer(data,filename,raw) - elseif trace_loading then - -- report_otf("enhance: %s is undefined",name) - end -end - -function enhancers.apply(data,filename,raw) - local basename = file.basename(lower(filename)) - if trace_loading then - report_otf("start enhancing: %s",filename) - end - ioflush() -- we want instant messages - for e=1,#ordered_enhancers do - local enhancer = ordered_enhancers[e] - local b = before[enhancer] - if b then - for pattern, action in next, b do - if find(basename,pattern) then - action(data,filename,raw) - end - end - end - enhance(enhancer,data,filename,raw) - local a = after[enhancer] - if a then - for pattern, action in next, a do - if find(basename,pattern) then - action(data,filename,raw) - end - end - end - ioflush() -- we want instant messages - end - if trace_loading then - report_otf("stop enhancing") - end - ioflush() -- we want instant messages -end - --- patches.register("before","migrate metadata","cambria",function() end) - -function patches.register(what,where,pattern,action) - local pw = patches[what] - if pw then - local ww = pw[where] - if ww then - ww[pattern] = action - else - pw[where] = { [pattern] = action} - end - end -end - -function patches.report(fmt,...) - if trace_loading then - report_otf("patching: " ..fmt,...) - end -end - -function enhancers.register(what,action) -- only already registered can be overloaded - actions[what] = action -end - -function otf.load(filename,format,sub,featurefile) - local name = file.basename(file.removesuffix(filename)) - local attr = lfs.attributes(filename) - local size = attr and attr.size or 0 - local time = attr and attr.modification or 0 - if featurefile then - name = name .. "@" .. file.removesuffix(file.basename(featurefile)) - end - if sub == "" then - sub = false - end - local hash = name - if sub then - hash = hash .. "-" .. sub - end - hash = containers.cleanname(hash) - local featurefiles - if featurefile then - featurefiles = { } - for s in gmatch(featurefile,"[^,]+") do - local name = resolvers.findfile(file.addsuffix(s,'fea'),'fea') or "" - if name == "" then - report_otf("loading: no featurefile '%s'",s) - else - local attr = lfs.attributes(name) - featurefiles[#featurefiles+1] = { - name = name, - size = attr and attr.size or 0, - time = attr and attr.modification or 0, - } - end - end - if #featurefiles == 0 then - featurefiles = nil - end - end - local data = containers.read(otf.cache,hash) - local reload = not data or data.size ~= size or data.time ~= time - if forceload then - report_otf("loading: forced reload due to hard coded flag") - reload = true - end - if not reload then - local featuredata = data.featuredata - if featurefiles then - if not featuredata or #featuredata ~= #featurefiles then - reload = true - else - for i=1,#featurefiles do - local fi, fd = featurefiles[i], featuredata[i] - if fi.name ~= fd.name or fi.size ~= fd.size or fi.time ~= fd.time then - reload = true - break - end - end - end - elseif featuredata then - reload = true - end - if reload then - report_otf("loading: forced reload due to changed featurefile specification: %s",featurefile or "--") - end - end - if reload then - report_otf("loading: %s (hash: %s)",filename,hash) - local fontdata, messages - if sub then - fontdata, messages = fontloader.open(filename,sub) - else - fontdata, messages = fontloader.open(filename) - end - if fontdata then - mainfields = mainfields or (fontloaderfields and fontloaderfields(fontdata)) - end - if trace_loading and messages and #messages > 0 then - if type(messages) == "string" then - report_otf("warning: %s",messages) - else - for m=1,#messages do - report_otf("warning: %s",tostring(messages[m])) - end - end - else - report_otf("font loaded okay") - end - if fontdata then - if featurefiles then - for i=1,#featurefiles do - load_featurefile(fontdata,featurefiles[i].name) - end - end - local unicodes = { - -- names to unicodes - } - local splitter = lpeg.splitter(" ",unicodes) - data = { - size = size, - time = time, - format = format, - featuredata = featurefiles, - resources = { - filename = resolvers.unresolve(filename), -- no shortcut - version = otf.version, - creator = "context mkiv", - unicodes = unicodes, - indices = { - -- index to unicodes - }, - duplicates = { - -- alternative unicodes - }, - variants = { - -- alternative unicodes (variants) - }, - lookuptypes = { - }, - }, - metadata = { - -- raw metadata, not to be used - }, - properties = { - -- normalized metadata - }, - descriptions = { - }, - goodies = { - }, - helpers = { - tounicodelist = splitter, - tounicodetable = lpeg.Ct(splitter), - }, - } - starttiming(data) - report_otf("file size: %s", size) - enhancers.apply(data,filename,fontdata) - local packtime = { } - if packdata then - if cleanup > 0 then - collectgarbage("collect") - end - starttiming(packtime) - enhance("pack",data,filename,nil) - stoptiming(packtime) - end - report_otf("saving in cache: %s",filename) - data = containers.write(otf.cache, hash, data) - if cleanup > 1 then - collectgarbage("collect") - end - stoptiming(data) - if elapsedtime then -- not in generic - report_otf("preprocessing and caching took %s seconds (packtime: %s)", - elapsedtime(data),packdata and elapsedtime(packtime) or 0) - end - fontloader.close(fontdata) -- free memory - if cleanup > 3 then - collectgarbage("collect") - end - data = containers.read(otf.cache, hash) -- this frees the old table and load the sparse one - if cleanup > 2 then - collectgarbage("collect") - end - else - data = nil - report_otf("loading failed (file read error)") - end - end - if data then - if trace_defining then - report_otf("loading from cache: %s",hash) - end - enhance("unpack",data,filename,nil,false) - enhance("add dimensions",data,filename,nil,false) - if trace_sequences then - showfeatureorder(data,filename) - end - end - return data -end - -local mt = { - __index = function(t,k) -- maybe set it - if k == "height" then - local ht = t.boundingbox[4] - return ht < 0 and 0 or ht - elseif k == "depth" then - local dp = -t.boundingbox[2] - return dp < 0 and 0 or dp - elseif k == "width" then - return 0 - elseif k == "name" then -- or maybe uni* - return forcenotdef and ".notdef" - end - end -} - -actions["prepare tables"] = function(data,filename,raw) - data.properties.hasitalics = false -end - -actions["add dimensions"] = function(data,filename) - -- todo: forget about the width if it's the defaultwidth (saves mem) - -- we could also build the marks hash here (instead of storing it) - if data then - local descriptions = data.descriptions - local resources = data.resources - local defaultwidth = resources.defaultwidth or 0 - local defaultheight = resources.defaultheight or 0 - local defaultdepth = resources.defaultdepth or 0 - if usemetatables then - for _, d in next, descriptions do - local wd = d.width - if not wd then - d.width = defaultwidth - elseif trace_markwidth and wd ~= 0 and d.class == "mark" then - report_otf("mark with width %s (%s) in %s",wd,d.name or "",file.basename(filename)) - -- d.width = -wd - end - setmetatable(d,mt) - end - else - for _, d in next, descriptions do - local bb, wd = d.boundingbox, d.width - if not wd then - d.width = defaultwidth - elseif trace_markwidth and wd ~= 0 and d.class == "mark" then - report_otf("mark with width %s (%s) in %s",wd,d.name or "",file.basename(filename)) - -- d.width = -wd - end - -- if forcenotdef and not d.name then - -- d.name = ".notdef" - -- end - if bb then - local ht, dp = bb[4], -bb[2] - if ht == 0 or ht < 0 then - -- not set - else - d.height = ht - end - if dp == 0 or dp < 0 then - -- not set - else - d.depth = dp - end - end - end - end - end -end - -local function somecopy(old) -- fast one - if old then - local new = { } - if type(old) == "table" then - for k, v in next, old do - if k == "glyphs" then - -- skip - elseif type(v) == "table" then - new[k] = somecopy(v) - else - new[k] = v - end - end - else - for i=1,#mainfields do - local k = mainfields[i] - local v = old[k] - if k == "glyphs" then - -- skip - elseif type(v) == "table" then - new[k] = somecopy(v) - else - new[k] = v - end - end - end - return new - else - return { } - end -end - --- not setting hasitalics and class (when nil) during --- table cronstruction can save some mem - -actions["prepare glyphs"] = function(data,filename,raw) - local rawglyphs = raw.glyphs - local rawsubfonts = raw.subfonts - local rawcidinfo = raw.cidinfo - local criterium = constructors.privateoffset - local private = criterium - local resources = data.resources - local metadata = data.metadata - local properties = data.properties - local descriptions = data.descriptions - local unicodes = resources.unicodes -- name to unicode - local indices = resources.indices -- index to unicode - local duplicates = resources.duplicates - local variants = resources.variants - - if rawsubfonts then - - metadata.subfonts = { } - properties.cidinfo = rawcidinfo - - if rawcidinfo.registry then - local cidmap = fonts.cid.getmap(rawcidinfo) - if cidmap then - rawcidinfo.usedname = cidmap.usedname - local nofnames, nofunicodes = 0, 0 - local cidunicodes, cidnames = cidmap.unicodes, cidmap.names - for cidindex=1,#rawsubfonts do - local subfont = rawsubfonts[cidindex] - local cidglyphs = subfont.glyphs - metadata.subfonts[cidindex] = somecopy(subfont) - for index=0,subfont.glyphcnt-1 do -- we could take the previous glyphcnt instead of 0 - local glyph = cidglyphs[index] - if glyph then - local unicode = glyph.unicode - local name = glyph.name or cidnames[index] - if not unicode or unicode == -1 or unicode >= criterium then - unicode = cidunicodes[index] - end - if not unicode or unicode == -1 or unicode >= criterium then - if not name then - name = format("u%06X",private) - end - unicode = private - unicodes[name] = private - if trace_private then - report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private) - end - private = private + 1 - nofnames = nofnames + 1 - else - if not name then - name = format("u%06X",unicode) - end - unicodes[name] = unicode - nofunicodes = nofunicodes + 1 - end - indices[index] = unicode -- each index is unique (at least now) - - local description = { - -- width = glyph.width, - boundingbox = glyph.boundingbox, - name = glyph.name or name or "unknown", -- uniXXXX - cidindex = cidindex, - index = index, - glyph = glyph, - } - - descriptions[unicode] = description - else - -- report_otf("potential problem: glyph 0x%04X is used but empty",index) - end - end - end - if trace_loading then - report_otf("cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes, nofnames, nofunicodes+nofnames) - end - elseif trace_loading then - report_otf("unable to remap cid font, missing cid file for %s",filename) - end - elseif trace_loading then - report_otf("font %s has no glyphs",filename) - end - - else - - for index=0,raw.glyphcnt-1 do -- not raw.glyphmax-1 (as that will crash) - local glyph = rawglyphs[index] - if glyph then - local unicode = glyph.unicode - local name = glyph.name - if not unicode or unicode == -1 or unicode >= criterium then - unicode = private - unicodes[name] = private - if trace_private then - report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private) - end - private = private + 1 - else - unicodes[name] = unicode - end - indices[index] = unicode - if not name then - name = format("u%06X",unicode) - end - descriptions[unicode] = { - -- width = glyph.width, - boundingbox = glyph.boundingbox, - name = name, - index = index, - glyph = glyph, - } - local altuni = glyph.altuni - if altuni then - local d - for i=1,#altuni do - local a = altuni[i] - local u = a.unicode - local v = a.variant - if v then - local vv = variants[v] - if vv then - vv[u] = unicode - else -- xits-math has some: - vv = { [u] = unicode } - variants[v] = vv - end - elseif d then - d[#d+1] = u - else - d = { u } - end - end - if d then - duplicates[unicode] = d - end - end - else - report_otf("potential problem: glyph 0x%04X is used but empty",index) - end - end - - end - - resources.private = private - -end - --- the next one is still messy but will get better when we have --- flattened map/enc tables in the font loader - -actions["check encoding"] = function(data,filename,raw) - local descriptions = data.descriptions - local resources = data.resources - local properties = data.properties - local unicodes = resources.unicodes -- name to unicode - local indices = resources.indices -- index to unicodes - - -- begin of messy (not needed when cidmap) - - local mapdata = raw.map or { } - local unicodetoindex = mapdata and mapdata.map or { } - -- local encname = lower(data.enc_name or raw.enc_name or mapdata.enc_name or "") - local encname = lower(data.enc_name or mapdata.enc_name or "") - local criterium = 0xFFFF -- for instance cambria has a lot of mess up there - - -- end of messy - - if find(encname,"unicode") then -- unicodebmp, unicodefull, ... - if trace_loading then - report_otf("checking embedded unicode map '%s'",encname) - end - for unicode, index in next, unicodetoindex do -- altuni already covers this - if unicode <= criterium and not descriptions[unicode] then - local parent = indices[index] -- why nil? - if parent then - report_otf("weird, unicode U+%05X points to U+%05X with index 0x%04X",unicode,parent,index) - else - report_otf("weird, unicode U+%05X points to nowhere with index 0x%04X",unicode,index) - end - end - end - elseif properties.cidinfo then - report_otf("warning: no unicode map, used cidmap '%s'",properties.cidinfo.usedname or "?") - else - report_otf("warning: non unicode map '%s', only using glyph unicode data",encname or "whatever") - end - - if mapdata then - mapdata.map = { } -- clear some memory - end -end - --- for the moment we assume that a fotn with lookups will not use --- altuni so we stick to kerns only - -actions["add duplicates"] = function(data,filename,raw) - local descriptions = data.descriptions - local resources = data.resources - local properties = data.properties - local unicodes = resources.unicodes -- name to unicode - local indices = resources.indices -- index to unicodes - local duplicates = resources.duplicates - - for unicode, d in next, duplicates do - for i=1,#d do - local u = d[i] - if not descriptions[u] then - local description = descriptions[unicode] - local duplicate = table.copy(description) -- else packing problem - duplicate.comment = format("copy of U+%05X", unicode) - descriptions[u] = duplicate - local n = 0 - for _, description in next, descriptions do - if kerns then - local kerns = description.kerns - for _, k in next, kerns do - local ku = k[unicode] - if ku then - k[u] = ku - n = n + 1 - end - end - end - -- todo: lookups etc - end - if trace_loading then - report_otf("duplicating U+%05X to U+%05X with index 0x%04X (%s kerns)",unicode,u,description.index,n) - end - end - end - end -end - --- class : nil base mark ligature component (maybe we don't need it in description) --- boundingbox: split into ht/dp takes more memory (larger tables and less sharing) - -actions["analyze glyphs"] = function(data,filename,raw) -- maybe integrate this in the previous - local descriptions = data.descriptions - local resources = data.resources - local metadata = data.metadata - local properties = data.properties - local hasitalics = false - local widths = { } - local marks = { } -- always present (saves checking) - for unicode, description in next, descriptions do - local glyph = description.glyph - local italic = glyph.italic_correction - if not italic then - -- skip - elseif italic == 0 then - -- skip - else - description.italic = italic - hasitalics = true - end - local width = glyph.width - widths[width] = (widths[width] or 0) + 1 - local class = glyph.class - if class then - if class == "mark" then - marks[unicode] = true - end - description.class = class - end - end - -- flag italic - properties.hasitalics = hasitalics - -- flag marks - resources.marks = marks - -- share most common width for cjk fonts - local wd, most = 0, 1 - for k,v in next, widths do - if v > most then - wd, most = k, v - end - end - if most > 1000 then -- maybe 500 - if trace_loading then - report_otf("most common width: %s (%s times), sharing (cjk font)",wd,most) - end - for unicode, description in next, descriptions do - if description.width == wd then - -- description.width = nil - else - description.width = description.glyph.width - end - end - resources.defaultwidth = wd - else - for unicode, description in next, descriptions do - description.width = description.glyph.width - end - end -end - -actions["reorganize mark classes"] = function(data,filename,raw) - local mark_classes = raw.mark_classes - if mark_classes then - local resources = data.resources - local unicodes = resources.unicodes - local markclasses = { } - resources.markclasses = markclasses -- reversed - for name, class in next, mark_classes do - local t = { } - for s in gmatch(class,"[^ ]+") do - t[unicodes[s]] = true - end - markclasses[name] = t - end - end -end - -actions["reorganize features"] = function(data,filename,raw) -- combine with other - local features = { } - data.resources.features = features - for k, what in next, otf.glists do - local dw = raw[what] - if dw then - local f = { } - features[what] = f - for i=1,#dw do - local d= dw[i] - local dfeatures = d.features - if dfeatures then - for i=1,#dfeatures do - local df = dfeatures[i] - local tag = strip(lower(df.tag)) - local ft = f[tag] - if not ft then - ft = { } - f[tag] = ft - end - local dscripts = df.scripts - for i=1,#dscripts do - local d = dscripts[i] - local languages = d.langs - local script = strip(lower(d.script)) - local fts = ft[script] if not fts then fts = {} ft[script] = fts end - for i=1,#languages do - fts[strip(lower(languages[i]))] = true - end - end - end - end - end - end - end -end - -actions["reorganize anchor classes"] = function(data,filename,raw) - local resources = data.resources - local anchor_to_lookup = { } - local lookup_to_anchor = { } - resources.anchor_to_lookup = anchor_to_lookup - resources.lookup_to_anchor = lookup_to_anchor - local classes = raw.anchor_classes -- anchor classes not in final table - if classes then - for c=1,#classes do - local class = classes[c] - local anchor = class.name - local lookups = class.lookup - if type(lookups) ~= "table" then - lookups = { lookups } - end - local a = anchor_to_lookup[anchor] - if not a then - a = { } - anchor_to_lookup[anchor] = a - end - for l=1,#lookups do - local lookup = lookups[l] - local l = lookup_to_anchor[lookup] - if l then - l[anchor] = true - else - l = { [anchor] = true } - lookup_to_anchor[lookup] = l - end - a[lookup] = true - end + local fullname=resolvers.findfile(filename,'cid') or "" + if fullname~="" then + found=loadcidfile(fullname) + if found then + if trace_loading then + report_otf("using cidmap file %s",filename) end + cidmap[hashname]=found + found.usedname=file.basename(filename) + end end + end + return found end - -actions["prepare tounicode"] = function(data,filename,raw) - fonts.mappings.addtounicode(data,filename) +function cid.getmap(specification) + if not specification then + report_otf("invalid cidinfo specification (table expected)") + return + end + local registry=specification.registry + local ordering=specification.ordering + local supplement=specification.supplement + local filename=format(registry,ordering,supplement) + local found=cidmap[lower(filename)] + if found then + return found + end + if trace_loading then + report_otf("needed cidmap, registry: %s, ordering: %s, supplement: %s",registry,ordering,supplement) + end + found=locate(registry,ordering,supplement) + if not found then + local supnum=tonumber(supplement) + local cidnum=nil + if supnum0 then + for s=supnum-1,0,-1 do + local c=locate(registry,ordering,s) + if c then + found,cidnum=c,s + break + end + end + end + registry=lower(registry) + ordering=lower(ordering) + if found and cidnum>0 then + for s=0,cidnum-1 do + local filename=format(template,registry,ordering,s) + if not cidmap[filename] then + cidmap[filename]=found + end + end + end + end + return found end -local g_directions = { - gsub_contextchain = 1, - gpos_contextchain = 1, - -- gsub_context = 1, - -- gpos_context = 1, - gsub_reversecontextchain = -1, - gpos_reversecontextchain = -1, -} +end -- closure --- Research by Khaled Hosny has demonstrated that the font loader merges --- regular and AAT features and that these can interfere (especially because --- we dropped checking for valid features elsewhere. So, we just check for --- the special flag and drop the feature if such a tag is found. +do -- begin closure to overcome local limits and interference -local function supported(features) - for i=1,#features do - if features[i].ismac then - return false - end +if not modules then modules={} end modules ['font-map']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local tonumber=tonumber +local match,format,find,concat,gsub,lower=string.match,string.format,string.find,table.concat,string.gsub,string.lower +local P,R,S,C,Ct,Cc,lpegmatch=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.match +local utfbyte=utf.byte +local floor=math.floor +local trace_loading=false trackers.register("fonts.loading",function(v) trace_loading=v end) +local trace_mapping=false trackers.register("fonts.mapping",function(v) trace_unimapping=v end) +local report_fonts=logs.reporter("fonts","loading") +local fonts=fonts +local mappings=fonts.mappings or {} +fonts.mappings=mappings +local function loadlumtable(filename) + local lumname=file.replacesuffix(file.basename(filename),"lum") + local lumfile=resolvers.findfile(lumname,"map") or "" + if lumfile~="" and lfs.isfile(lumfile) then + if trace_loading or trace_mapping then + report_fonts("enhance: loading %s ",lumfile) + end + lumunic=dofile(lumfile) + return lumunic,lumfile + end +end +local hex=R("AF","09") +local hexfour=(hex*hex*hex*hex)/function(s) return tonumber(s,16) end +local hexsix=(hex^1)/function(s) return tonumber(s,16) end +local dec=(R("09")^1)/tonumber +local period=P(".") +local unicode=P("uni")*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true)) +local ucode=P("u")*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true)) +local index=P("index")*dec*Cc(false) +local parser=unicode+ucode+index +local parsers={} +local function makenameparser(str) + if not str or str=="" then + return parser + else + local p=parsers[str] + if not p then + p=P(str)*period*dec*Cc(false) + parsers[str]=p end - return true + return p + end end - -actions["reorganize subtables"] = function(data,filename,raw) - local resources = data.resources - local sequences = { } - local lookups = { } - local chainedfeatures = { } - resources.sequences = sequences - resources.lookups = lookups - for _, what in next, otf.glists do - local dw = raw[what] - if dw then - for k=1,#dw do - local gk = dw[k] - local features = gk.features --- if features and supported(features) then - if not features or supported(features) then -- not always features ! - local typ = gk.type - local chain = g_directions[typ] or 0 - local subtables = gk.subtables - if subtables then - local t = { } - for s=1,#subtables do - t[s] = subtables[s].name - end - subtables = t - end - local flags, markclass = gk.flags, nil - if flags then - local t = { -- forcing false packs nicer - (flags.ignorecombiningmarks and "mark") or false, - (flags.ignoreligatures and "ligature") or false, - (flags.ignorebaseglyphs and "base") or false, - flags.r2l or false, - } - markclass = flags.mark_class - if markclass then - markclass = resources.markclasses[markclass] - end - flags = t - end - -- - local name = gk.name - -- - if not name then - -- in fact an error - report_otf("skipping weird lookup number %s",k) - elseif features then - -- scripts, tag, ismac - local f = { } - for i=1,#features do - local df = features[i] - local tag = strip(lower(df.tag)) - local ft = f[tag] if not ft then ft = {} f[tag] = ft end - local dscripts = df.scripts - for i=1,#dscripts do - local d = dscripts[i] - local languages = d.langs - local script = strip(lower(d.script)) - local fts = ft[script] if not fts then fts = {} ft[script] = fts end - for i=1,#languages do - fts[strip(lower(languages[i]))] = true - end - end - end - sequences[#sequences+1] = { - type = typ, - chain = chain, - flags = flags, - name = name, - subtables = subtables, - markclass = markclass, - features = f, - } - else - lookups[name] = { - type = typ, - chain = chain, - flags = flags, - subtables = subtables, - markclass = markclass, - } - end - end - end - end +local function tounicode16(unicode) + if unicode<0x10000 then + return format("%04X",unicode) + elseif unicode<0x1FFFFFFFFF then + return format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00) + else + report_fonts("can't convert %s into tounicode",unicode) + end +end +local function tounicode16sequence(unicodes) + local t={} + for l=1,#unicodes do + local unicode=unicodes[l] + if unicode<0x10000 then + t[l]=format("%04X",unicode) + elseif unicode<0x1FFFFFFFFF then + t[l]=format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00) + else + report_fonts ("can't convert %s into tounicode",unicode) end + end + return concat(t) +end +local function fromunicode16(str) + if #str==4 then + return tonumber(str,16) + else + local l,r=match(str,"(....)(....)") + return (tonumber(l,16)- 0xD800)*0x400+tonumber(r,16)-0xDC00 + end +end +mappings.loadlumtable=loadlumtable +mappings.makenameparser=makenameparser +mappings.tounicode16=tounicode16 +mappings.tounicode16sequence=tounicode16sequence +mappings.fromunicode16=fromunicode16 +local separator=S("_.") +local other=C((1-separator)^1) +local ligsplitter=Ct(other*(separator*other)^0) +function mappings.addtounicode(data,filename) + local resources=data.resources + local properties=data.properties + local descriptions=data.descriptions + local unicodes=resources.unicodes + if not unicodes then + return + end + unicodes['space']=unicodes['space'] or 32 + unicodes['hyphen']=unicodes['hyphen'] or 45 + unicodes['zwj']=unicodes['zwj'] or 0x200D + unicodes['zwnj']=unicodes['zwnj'] or 0x200C + local private=fonts.constructors.privateoffset + local unknown=format("%04X",utfbyte("?")) + local unicodevector=fonts.encodings.agl.unicodes + local tounicode={} + local originals={} + resources.tounicode=tounicode + resources.originals=originals + local lumunic,uparser,oparser + local cidinfo,cidnames,cidcodes,usedmap + if false then + lumunic=loadlumtable(filename) + lumunic=lumunic and lumunic.tounicode + end + cidinfo=properties.cidinfo + usedmap=cidinfo and fonts.cid.getmap(cidinfo) + if usedmap then + oparser=usedmap and makenameparser(cidinfo.ordering) + cidnames=usedmap.names + cidcodes=usedmap.unicodes + end + uparser=makenameparser() + local ns,nl=0,0 + for unic,glyph in next,descriptions do + local index=glyph.index + local name=glyph.name + if unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then + local unicode=lumunic and lumunic[name] or unicodevector[name] + if unicode then + originals[index]=unicode + tounicode[index]=tounicode16(unicode) + ns=ns+1 + end + if (not unicode) and usedmap then + local foundindex=lpegmatch(oparser,name) + if foundindex then + unicode=cidcodes[foundindex] + if unicode then + originals[index]=unicode + tounicode[index]=tounicode16(unicode) + ns=ns+1 + else + local reference=cidnames[foundindex] + if reference then + local foundindex=lpegmatch(oparser,reference) + if foundindex then + unicode=cidcodes[foundindex] + if unicode then + originals[index]=unicode + tounicode[index]=tounicode16(unicode) + ns=ns+1 + end + end + if not unicode then + local foundcodes,multiple=lpegmatch(uparser,reference) + if foundcodes then + originals[index]=foundcodes + if multiple then + tounicode[index]=tounicode16sequence(foundcodes) + nl=nl+1 + unicode=true + else + tounicode[index]=tounicode16(foundcodes) + ns=ns+1 + unicode=foundcodes + end + end + end + end + end + end + end + if not unicode then + local split=lpegmatch(ligsplitter,name) + local nplit=split and #split or 0 + if nplit>=2 then + local t,n={},0 + for l=1,nplit do + local base=split[l] + local u=unicodes[base] or unicodevector[base] + if not u then + break + elseif type(u)=="table" then + n=n+1 + t[n]=u[1] + else + n=n+1 + t[n]=u + end + end + if n==0 then + elseif n==1 then + originals[index]=t[1] + tounicode[index]=tounicode16(t[1]) + else + originals[index]=t + tounicode[index]=tounicode16sequence(t) + end + nl=nl+1 + unicode=true + else + end + end + if not unicode then + local foundcodes,multiple=lpegmatch(uparser,name) + if foundcodes then + if multiple then + originals[index]=foundcodes + tounicode[index]=tounicode16sequence(foundcodes) + nl=nl+1 + unicode=true + else + originals[index]=foundcodes + tounicode[index]=tounicode16(foundcodes) + ns=ns+1 + unicode=foundcodes + end + end + end + end + end + if trace_mapping then + for unic,glyph in table.sortedhash(descriptions) do + local name=glyph.name + local index=glyph.index + local toun=tounicode[index] + if toun then + report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X, tounicode: %s",index,name,unic,toun) + else + report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X",index,name,unic) + end + end + end + if trace_loading and (ns>0 or nl>0) then + report_fonts("enhance: %s tounicode entries added (%s ligatures)",nl+ns,ns) + end end --- test this: --- --- for _, what in next, otf.glists do --- raw[what] = nil --- end +end -- closure + +do -- begin closure to overcome local limits and interference -actions["prepare lookups"] = function(data,filename,raw) - local lookups = raw.lookups - if lookups then - data.lookups = lookups +if not modules then modules={} end modules ['luatex-fonts-syn']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +if context then + texio.write_nl("fatal error: this module is not for context") + os.exit() +end +local fonts=fonts +fonts.names=fonts.names or {} +fonts.names.version=1.001 +fonts.names.basename="luatex-fonts-names.lua" +fonts.names.new_to_old={} +fonts.names.old_to_new={} +local data,loaded=nil,false +local fileformats={ "lua","tex","other text files" } +function fonts.names.resolve(name,sub) + if not loaded then + local basename=fonts.names.basename + if basename and basename~="" then + for i=1,#fileformats do + local format=fileformats[i] + local foundname=resolvers.findfile(basename,format) or "" + if foundname~="" then + data=dofile(foundname) + texio.write("") + break + end + end + end + loaded=true + end + if type(data)=="table" and data.version==fonts.names.version then + local condensed=string.gsub(string.lower(name),"[^%a%d]","") + local found=data.mappings and data.mappings[condensed] + if found then + local fontname,filename,subfont=found[1],found[2],found[3] + if subfont then + return filename,fontname + else + return filename,false + end + else + return name,false end + end +end +fonts.names.resolvespec=fonts.names.resolve +function fonts.names.getfilename(askedname,suffix) + return "" end --- The reverse handler does a bit redundant splitting but it's seldom --- seen so we don't bother too much. We could store the replacement --- in the current list (value instead of true) but it makes other code --- uglier. Maybe some day. +end -- closure -local function t_uncover(splitter,cache,covers) - local result = { } - for n=1,#covers do - local cover = covers[n] - local uncovered = cache[cover] - if not uncovered then - uncovered = lpegmatch(splitter,cover) - cache[cover] = uncovered - end - result[n] = uncovered - end - return result -end +do -- begin closure to overcome local limits and interference -local function s_uncover(splitter,cache,cover) - if cover == "" then - return nil +if not modules then modules={} end modules ['luatex-fonts-tfm']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +if context then + texio.write_nl("fatal error: this module is not for context") + os.exit() +end +local fonts=fonts +local tfm={} +fonts.handlers.tfm=tfm +fonts.formats.tfm="type1" +function fonts.readers.tfm(specification) + local fullname=specification.filename or "" + if fullname=="" then + local forced=specification.forced or "" + if forced~="" then + fullname=specification.name.."."..forced else - local uncovered = cache[cover] - if not uncovered then - uncovered = lpegmatch(splitter,cover) --- for i=1,#uncovered do --- uncovered[i] = { [uncovered[i]] = true } --- end - cache[cover] = uncovered - end - return { uncovered } + fullname=specification.name end + end + local foundname=resolvers.findbinfile(fullname,'tfm') or "" + if foundname=="" then + foundname=resolvers.findbinfile(fullname,'ofm') or "" + end + if foundname~="" then + specification.filename=foundname + specification.format="ofm" + return font.read_tfm(specification.filename,specification.size) + end end -local function t_hashed(t,cache) - if t then - local ht = { } - for i=1,#t do - local ti = t[i] - local tih = cache[ti] - if not tih then - tih = { } - for i=1,#ti do - tih[ti[i]] = true - end - cache[ti] = tih - end - ht[i] = tih - end - return ht +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['font-oti']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local lower=string.lower +local fonts=fonts +local constructors=fonts.constructors +local otf=constructors.newhandler("otf") +local otffeatures=constructors.newfeatures("otf") +local otftables=otf.tables +local registerotffeature=otffeatures.register +local allocate=utilities.storage.allocate +registerotffeature { + name="features", + description="initialization of feature handler", + default=true, +} +local function setmode(tfmdata,value) + if value then + tfmdata.properties.mode=lower(value) + end +end +local function setlanguage(tfmdata,value) + if value then + local cleanvalue=lower(value) + local languages=otftables and otftables.languages + local properties=tfmdata.properties + if not languages then + properties.language=cleanvalue + elseif languages[value] then + properties.language=cleanvalue else - return nil + properties.language="dflt" end + end end - -local s_hashed = t_hashed - -local function r_uncover(splitter,cache,cover,replacements) - if cover == "" then - return nil +local function setscript(tfmdata,value) + if value then + local cleanvalue=lower(value) + local scripts=otftables and otftables.scripts + local properties=tfmdata.properties + if not scripts then + properties.script=cleanvalue + elseif scripts[value] then + properties.script=cleanvalue else - -- we always have current as { } even in the case of one - local uncovered = cover[1] - local replaced = cache[replacements] - if not replaced then - replaced = lpegmatch(splitter,replacements) - cache[replacements] = replaced - end - local nu, nr = #uncovered, #replaced - local r = { } - if nu == nr then - for i=1,nu do - r[uncovered[i]] = replaced[i] - end - end - return r + properties.script="dflt" end + end end +registerotffeature { + name="mode", + description="mode", + initializers={ + base=setmode, + node=setmode, + } +} +registerotffeature { + name="language", + description="language", + initializers={ + base=setlanguage, + node=setlanguage, + } +} +registerotffeature { + name="script", + description="script", + initializers={ + base=setscript, + node=setscript, + } +} -actions["reorganize lookups"] = function(data,filename,raw) -- we could check for "" and n == 0 - -- we prefer the before lookups in a normal order - if data.lookups then - local splitter = data.helpers.tounicodetable - local t_u_cache = { } - local s_u_cache = t_u_cache -- string keys - local t_h_cache = { } - local s_h_cache = t_h_cache -- table keys (so we could use one cache) - local r_u_cache = { } -- maybe shared - for _, lookup in next, data.lookups do - local rules = lookup.rules - if rules then - local format = lookup.format - if format == "class" then - local before_class = lookup.before_class - if before_class then - before_class = t_uncover(splitter,t_u_cache,reversed(before_class)) - end - local current_class = lookup.current_class - if current_class then - current_class = t_uncover(splitter,t_u_cache,current_class) - end - local after_class = lookup.after_class - if after_class then - after_class = t_uncover(splitter,t_u_cache,after_class) - end - for i=1,#rules do - local rule = rules[i] - local class = rule.class - local before = class.before - if before then - for i=1,#before do - before[i] = before_class[before[i]] or { } - end - rule.before = t_hashed(before,t_h_cache) - end - local current = class.current - local lookups = rule.lookups - if current then - for i=1,#current do - current[i] = current_class[current[i]] or { } - if lookups and not lookups[i] then - lookups[i] = "" -- (was: false) e.g. we can have two lookups and one replacement - end - end - rule.current = t_hashed(current,t_h_cache) - end - local after = class.after - if after then - for i=1,#after do - after[i] = after_class[after[i]] or { } - end - rule.after = t_hashed(after,t_h_cache) - end - rule.class = nil - end - lookup.before_class = nil - lookup.current_class = nil - lookup.after_class = nil - lookup.format = "coverage" - elseif format == "coverage" then - for i=1,#rules do - local rule = rules[i] - local coverage = rule.coverage - if coverage then - local before = coverage.before - if before then - before = t_uncover(splitter,t_u_cache,reversed(before)) - rule.before = t_hashed(before,t_h_cache) - end - local current = coverage.current - if current then - current = t_uncover(splitter,t_u_cache,current) - rule.current = t_hashed(current,t_h_cache) - end - local after = coverage.after - if after then - after = t_uncover(splitter,t_u_cache,after) - rule.after = t_hashed(after,t_h_cache) - end - rule.coverage = nil - end - end - elseif format == "reversecoverage" then -- special case, single substitution only - for i=1,#rules do - local rule = rules[i] - local reversecoverage = rule.reversecoverage - if reversecoverage then - local before = reversecoverage.before - if before then - before = t_uncover(splitter,t_u_cache,reversed(before)) - rule.before = t_hashed(before,t_h_cache) - end - local current = reversecoverage.current - if current then - current = t_uncover(splitter,t_u_cache,current) - rule.current = t_hashed(current,t_h_cache) - end - local after = reversecoverage.after - if after then - after = t_uncover(splitter,t_u_cache,after) - rule.after = t_hashed(after,t_h_cache) - end - local replacements = reversecoverage.replacements - if replacements then - rule.replacements = r_uncover(splitter,r_u_cache,current,replacements) - end - rule.reversecoverage = nil - end - end - elseif format == "glyphs" then - for i=1,#rules do - local rule = rules[i] - local glyphs = rule.glyphs - if glyphs then - local fore = glyphs.fore - if fore and fore ~= "" then - fore = s_uncover(splitter,s_u_cache,fore) - rule.before = s_hashed(fore,s_h_cache) - end - local back = glyphs.back - if back then - back = s_uncover(splitter,s_u_cache,back) - rule.after = s_hashed(back,s_h_cache) - end - local names = glyphs.names - if names then - names = s_uncover(splitter,s_u_cache,names) - rule.current = s_hashed(names,s_h_cache) - end - rule.glyphs = nil - end - end - end - end - end +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['font-otf']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local utfbyte=utf.byte +local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip +local type,next,tonumber,tostring=type,next,tonumber,tostring +local abs=math.abs +local getn=table.getn +local lpegmatch=lpeg.match +local reversed,concat,remove=table.reversed,table.concat,table.remove +local ioflush=io.flush +local fastcopy,tohash,derivetable=table.fastcopy,table.tohash,table.derive +local allocate=utilities.storage.allocate +local registertracker=trackers.register +local registerdirective=directives.register +local starttiming=statistics.starttiming +local stoptiming=statistics.stoptiming +local elapsedtime=statistics.elapsedtime +local findbinfile=resolvers.findbinfile +local trace_private=false registertracker("otf.private",function(v) trace_private=v end) +local trace_loading=false registertracker("otf.loading",function(v) trace_loading=v end) +local trace_features=false registertracker("otf.features",function(v) trace_features=v end) +local trace_dynamics=false registertracker("otf.dynamics",function(v) trace_dynamics=v end) +local trace_sequences=false registertracker("otf.sequences",function(v) trace_sequences=v end) +local trace_markwidth=false registertracker("otf.markwidth",function(v) trace_markwidth=v end) +local trace_defining=false registertracker("fonts.defining",function(v) trace_defining=v end) +local report_otf=logs.reporter("fonts","otf loading") +local fonts=fonts +local otf=fonts.handlers.otf +otf.glists={ "gsub","gpos" } +otf.version=2.741 +otf.cache=containers.define("fonts","otf",otf.version,true) +local fontdata=fonts.hashes.identifiers +local chardata=characters and characters.data +local otffeatures=fonts.constructors.newfeatures("otf") +local registerotffeature=otffeatures.register +local enhancers=allocate() +otf.enhancers=enhancers +local patches={} +enhancers.patches=patches +local definers=fonts.definers +local readers=fonts.readers +local constructors=fonts.constructors +local forceload=false +local cleanup=0 +local usemetatables=false +local packdata=true +local syncspace=true +local forcenotdef=false +local wildcard="*" +local default="dflt" +local fontloaderfields=fontloader.fields +local mainfields=nil +local glyphfields=nil +registerdirective("fonts.otf.loader.cleanup",function(v) cleanup=tonumber(v) or (v and 1) or 0 end) +registerdirective("fonts.otf.loader.force",function(v) forceload=v end) +registerdirective("fonts.otf.loader.usemetatables",function(v) usemetatables=v end) +registerdirective("fonts.otf.loader.pack",function(v) packdata=v end) +registerdirective("fonts.otf.loader.syncspace",function(v) syncspace=v end) +registerdirective("fonts.otf.loader.forcenotdef",function(v) forcenotdef=v end) +local function load_featurefile(raw,featurefile) + if featurefile and featurefile~="" then + if trace_loading then + report_otf("featurefile: %s",featurefile) end + fontloader.apply_featurefile(raw,featurefile) + end end - -local function check_variants(unicode,the_variants,splitter,unicodes) - local variants = the_variants.variants - if variants then -- use splitter - local glyphs = lpegmatch(splitter,variants) - local done = { [unicode] = true } - local n = 0 - for i=1,#glyphs do - local g = glyphs[i] - if done[g] then - report_otf("skipping cyclic reference U+%05X in math variant U+%05X",g,unicode) - else - if n == 0 then - n = 1 - variants = { g } - else - n = n + 1 - variants[n] = g - end - done[g] = true +local function showfeatureorder(rawdata,filename) + local sequences=rawdata.resources.sequences + if sequences and #sequences>0 then + if trace_loading then + report_otf("font %s has %s sequences",filename,#sequences) + report_otf(" ") + end + for nos=1,#sequences do + local sequence=sequences[nos] + local typ=sequence.type or "no-type" + local name=sequence.name or "no-name" + local subtables=sequence.subtables or { "no-subtables" } + local features=sequence.features + if trace_loading then + report_otf("%3i %-15s %-20s [%s]",nos,name,typ,concat(subtables,",")) + end + if features then + for feature,scripts in next,features do + local tt={} + if type(scripts)=="table" then + for script,languages in next,scripts do + local ttt={} + for language,_ in next,languages do + ttt[#ttt+1]=language + end + tt[#tt+1]=format("[%s: %s]",script,concat(ttt," ")) end - end - if n == 0 then - variants = nil - end - end - local parts = the_variants.parts - if parts then - local p = #parts - if p > 0 then - for i=1,p do - local pi = parts[i] - pi.glyph = unicodes[pi.component] or 0 - pi.component = nil + if trace_loading then + report_otf(" %s: %s",feature,concat(tt," ")) end - else - parts = nil + else + if trace_loading then + report_otf(" %s: %s",feature,tostring(scripts)) + end + end end + end end - local italic_correction = the_variants.italic_correction - if italic_correction and italic_correction == 0 then - italic_correction = nil + if trace_loading then + report_otf("\n") + end + elseif trace_loading then + report_otf("font %s has no sequences",filename) + end +end +local valid_fields=table.tohash { + "ascent", + "cidinfo", + "copyright", + "descent", + "design_range_bottom", + "design_range_top", + "design_size", + "encodingchanged", + "extrema_bound", + "familyname", + "fontname", + "fontname", + "fontstyle_id", + "fontstyle_name", + "fullname", + "hasvmetrics", + "horiz_base", + "issans", + "isserif", + "italicangle", + "macstyle", + "onlybitmaps", + "origname", + "os2_version", + "pfminfo", + "serifcheck", + "sfd_version", + "strokedfont", + "strokewidth", + "table_version", + "ttf_tables", + "uni_interp", + "uniqueid", + "units_per_em", + "upos", + "use_typo_metrics", + "uwidth", + "version", + "vert_base", + "weight", + "weight_width_slope_only", +} +local ordered_enhancers={ + "prepare tables", + "prepare glyphs", + "prepare lookups", + "analyze glyphs", + "analyze math", + "prepare tounicode", + "reorganize lookups", + "reorganize mark classes", + "reorganize anchor classes", + "reorganize glyph kerns", + "reorganize glyph lookups", + "reorganize glyph anchors", + "merge kern classes", + "reorganize features", + "reorganize subtables", + "check glyphs", + "check metadata", + "check extra features", + "add duplicates", + "check encoding", + "cleanup tables", +} +local actions=allocate() +local before=allocate() +local after=allocate() +patches.before=before +patches.after=after +local function enhance(name,data,filename,raw) + local enhancer=actions[name] + if enhancer then + if trace_loading then + report_otf("enhance: %s (%s)",name,filename) + ioflush() end - return variants, parts, italic_correction + enhancer(data,filename,raw) + elseif trace_loading then + end end - -actions["analyze math"] = function(data,filename,raw) - if raw.math then - data.metadata.math = raw.math - local unicodes = data.resources.unicodes - local splitter = data.helpers.tounicodetable - for unicode, description in next, data.descriptions do - local glyph = description.glyph - local mathkerns = glyph.mathkern -- singular - local horiz_variants = glyph.horiz_variants - local vert_variants = glyph.vert_variants - local top_accent = glyph.top_accent - if mathkerns or horiz_variants or vert_variants or top_accent then - local math = { } - if top_accent then - math.top_accent = top_accent - end - if mathkerns then - for k, v in next, mathkerns do - if not next(v) then - mathkerns[k] = nil - else - for k, v in next, v do - if v == 0 then - k[v] = nil -- height / kern can be zero - end - end - end - end - math.kerns = mathkerns - end - if horiz_variants then - math.horiz_variants, math.horiz_parts, math.horiz_italic_correction = check_variants(unicode,horiz_variants,splitter,unicodes) - end - if vert_variants then - math.vert_variants, math.vert_parts, math.vert_italic_correction = check_variants(unicode,vert_variants,splitter,unicodes) - end - local italic_correction = description.italic - if italic_correction and italic_correction ~= 0 then - math.italic_correction = italic_correction - end - description.math = math - end - end - end +function enhancers.apply(data,filename,raw) + local basename=file.basename(lower(filename)) + if trace_loading then + report_otf("start enhancing: %s",filename) + end + ioflush() + for e=1,#ordered_enhancers do + local enhancer=ordered_enhancers[e] + local b=before[enhancer] + if b then + for pattern,action in next,b do + if find(basename,pattern) then + action(data,filename,raw) + end + end + end + enhance(enhancer,data,filename,raw) + local a=after[enhancer] + if a then + for pattern,action in next,a do + if find(basename,pattern) then + action(data,filename,raw) + end + end + end + ioflush() + end + if trace_loading then + report_otf("stop enhancing") + end + ioflush() end - -actions["reorganize glyph kerns"] = function(data,filename,raw) - local descriptions = data.descriptions - local resources = data.resources - local unicodes = resources.unicodes - for unicode, description in next, descriptions do - local kerns = description.glyph.kerns - if kerns then - local newkerns = { } - for k, kern in next, kerns do - local name = kern.char - local offset = kern.off - local lookup = kern.lookup - if name and offset and lookup then - local unicode = unicodes[name] - if unicode then - if type(lookup) == "table" then - for l=1,#lookup do - local lookup = lookup[l] - local lookupkerns = newkerns[lookup] - if lookupkerns then - lookupkerns[unicode] = offset - else - newkerns[lookup] = { [unicode] = offset } - end - end - else - local lookupkerns = newkerns[lookup] - if lookupkerns then - lookupkerns[unicode] = offset - else - newkerns[lookup] = { [unicode] = offset } - end - end - elseif trace_loading then - report_otf("problems with unicode %s of kern %s of glyph U+%05X",name,k,unicode) - end - end - end - description.kerns = newkerns - end +function patches.register(what,where,pattern,action) + local pw=patches[what] + if pw then + local ww=pw[where] + if ww then + ww[pattern]=action + else + pw[where]={ [pattern]=action} end + end end - -actions["merge kern classes"] = function(data,filename,raw) - local gposlist = raw.gpos - if gposlist then - local descriptions = data.descriptions - local resources = data.resources - local unicodes = resources.unicodes - local splitter = data.helpers.tounicodetable - for gp=1,#gposlist do - local gpos = gposlist[gp] - local subtables = gpos.subtables - if subtables then - for s=1,#subtables do - local subtable = subtables[s] - local kernclass = subtable.kernclass -- name is inconsistent with anchor_classes - if kernclass then -- the next one is quite slow - local split = { } -- saves time - for k=1,#kernclass do - local kcl = kernclass[k] - local firsts = kcl.firsts - local seconds = kcl.seconds - local offsets = kcl.offsets - local lookups = kcl.lookup -- singular - if type(lookups) ~= "table" then - lookups = { lookups } - end - -- if offsets[1] == nil then - -- offsets[1] = "" - -- end - -- we can check the max in the loop - -- local maxseconds = getn(seconds) - for n, s in next, firsts do - split[s] = split[s] or lpegmatch(splitter,s) - end - local maxseconds = 0 - for n, s in next, seconds do - if n > maxseconds then - maxseconds = n - end - split[s] = split[s] or lpegmatch(splitter,s) - end - for l=1,#lookups do - local lookup = lookups[l] - for fk=1,#firsts do -- maxfirsts ? - local fv = firsts[fk] - local splt = split[fv] - if splt then - local extrakerns = { } - local baseoffset = (fk-1) * maxseconds - for sk=2,maxseconds do -- will become 1 based in future luatex - local sv = seconds[sk] - -- for sk, sv in next, seconds do - local splt = split[sv] - if splt then -- redundant test - local offset = offsets[baseoffset + sk] - if offset then - for i=1,#splt do - extrakerns[splt[i]] = offset - end - end - end - end - for i=1,#splt do - local first_unicode = splt[i] - local description = descriptions[first_unicode] - if description then - local kerns = description.kerns - if not kerns then - kerns = { } -- unicode indexed ! - description.kerns = kerns - end - local lookupkerns = kerns[lookup] - if not lookupkerns then - lookupkerns = { } - kerns[lookup] = lookupkerns - end - for second_unicode, kern in next, extrakerns do - lookupkerns[second_unicode] = kern - end - elseif trace_loading then - report_otf("no glyph data for U+%05X", first_unicode) - end - end - end - end - end - end - subtable.kernclass = { } - end - end - end +function patches.report(fmt,...) + if trace_loading then + report_otf("patching: "..fmt,...) + end +end +function enhancers.register(what,action) + actions[what]=action +end +function otf.load(filename,format,sub,featurefile) + local name=file.basename(file.removesuffix(filename)) + local attr=lfs.attributes(filename) + local size=attr and attr.size or 0 + local time=attr and attr.modification or 0 + if featurefile then + name=name.."@"..file.removesuffix(file.basename(featurefile)) + end + if sub=="" then + sub=false + end + local hash=name + if sub then + hash=hash.."-"..sub + end + hash=containers.cleanname(hash) + local featurefiles + if featurefile then + featurefiles={} + for s in gmatch(featurefile,"[^,]+") do + local name=resolvers.findfile(file.addsuffix(s,'fea'),'fea') or "" + if name=="" then + report_otf("loading: no featurefile '%s'",s) + else + local attr=lfs.attributes(name) + featurefiles[#featurefiles+1]={ + name=name, + size=attr and attr.size or 0, + time=attr and attr.modification or 0, + } + end + end + if #featurefiles==0 then + featurefiles=nil + end + end + local data=containers.read(otf.cache,hash) + local reload=not data or data.size~=size or data.time~=time + if forceload then + report_otf("loading: forced reload due to hard coded flag") + reload=true + end + if not reload then + local featuredata=data.featuredata + if featurefiles then + if not featuredata or #featuredata~=#featurefiles then + reload=true + else + for i=1,#featurefiles do + local fi,fd=featurefiles[i],featuredata[i] + if fi.name~=fd.name or fi.size~=fd.size or fi.time~=fd.time then + reload=true + break + end end + end + elseif featuredata then + reload=true end -end - -actions["check glyphs"] = function(data,filename,raw) - for unicode, description in next, data.descriptions do - description.glyph = nil + if reload then + report_otf("loading: forced reload due to changed featurefile specification: %s",featurefile or "--") end -end - --- future versions will remove _ - -actions["check metadata"] = function(data,filename,raw) - local metadata = data.metadata - for _, k in next, mainfields do - if valid_fields[k] then - local v = raw[k] - if not metadata[k] then - metadata[k] = v - end + end + if reload then + report_otf("loading: %s (hash: %s)",filename,hash) + local fontdata,messages + if sub then + fontdata,messages=fontloader.open(filename,sub) + else + fontdata,messages=fontloader.open(filename) + end + if fontdata then + mainfields=mainfields or (fontloaderfields and fontloaderfields(fontdata)) + end + if trace_loading and messages and #messages>0 then + if type(messages)=="string" then + report_otf("warning: %s",messages) + else + for m=1,#messages do + report_otf("warning: %s",tostring(messages[m])) end + end + else + report_otf("font loaded okay") + end + if fontdata then + if featurefiles then + for i=1,#featurefiles do + load_featurefile(fontdata,featurefiles[i].name) + end + end + local unicodes={ + } + local splitter=lpeg.splitter(" ",unicodes) + data={ + size=size, + time=time, + format=format, + featuredata=featurefiles, + resources={ + filename=resolvers.unresolve(filename), + version=otf.version, + creator="context mkiv", + unicodes=unicodes, + indices={ + }, + duplicates={ + }, + variants={ + }, + lookuptypes={}, + }, + metadata={ + }, + properties={ + }, + descriptions={}, + goodies={}, + helpers={ + tounicodelist=splitter, + tounicodetable=lpeg.Ct(splitter), + }, + } + starttiming(data) + report_otf("file size: %s",size) + enhancers.apply(data,filename,fontdata) + local packtime={} + if packdata then + if cleanup>0 then + collectgarbage("collect") + end + starttiming(packtime) + enhance("pack",data,filename,nil) + stoptiming(packtime) + end + report_otf("saving in cache: %s",filename) + data=containers.write(otf.cache,hash,data) + if cleanup>1 then + collectgarbage("collect") + end + stoptiming(data) + if elapsedtime then + report_otf("preprocessing and caching took %s seconds (packtime: %s)", + elapsedtime(data),packdata and elapsedtime(packtime) or 0) + end + fontloader.close(fontdata) + if cleanup>3 then + collectgarbage("collect") + end + data=containers.read(otf.cache,hash) + if cleanup>2 then + collectgarbage("collect") + end + else + data=nil + report_otf("loading failed (file read error)") end - -- metadata.pfminfo = raw.pfminfo -- not already done? - local ttftables = metadata.ttf_tables - if ttftables then - for i=1,#ttftables do - ttftables[i].data = "deleted" + end + if data then + if trace_defining then + report_otf("loading from cache: %s",hash) + end + enhance("unpack",data,filename,nil,false) + enhance("add dimensions",data,filename,nil,false) + if trace_sequences then + showfeatureorder(data,filename) + end + end + return data +end +local mt={ + __index=function(t,k) + if k=="height" then + local ht=t.boundingbox[4] + return ht<0 and 0 or ht + elseif k=="depth" then + local dp=-t.boundingbox[2] + return dp<0 and 0 or dp + elseif k=="width" then + return 0 + elseif k=="name" then + return forcenotdef and ".notdef" + end + end +} +actions["prepare tables"]=function(data,filename,raw) + data.properties.hasitalics=false +end +actions["add dimensions"]=function(data,filename) + if data then + local descriptions=data.descriptions + local resources=data.resources + local defaultwidth=resources.defaultwidth or 0 + local defaultheight=resources.defaultheight or 0 + local defaultdepth=resources.defaultdepth or 0 + if usemetatables then + for _,d in next,descriptions do + local wd=d.width + if not wd then + d.width=defaultwidth + elseif trace_markwidth and wd~=0 and d.class=="mark" then + report_otf("mark with width %s (%s) in %s",wd,d.name or "",file.basename(filename)) + end + setmetatable(d,mt) + end + else + for _,d in next,descriptions do + local bb,wd=d.boundingbox,d.width + if not wd then + d.width=defaultwidth + elseif trace_markwidth and wd~=0 and d.class=="mark" then + report_otf("mark with width %s (%s) in %s",wd,d.name or "",file.basename(filename)) + end + if bb then + local ht,dp=bb[4],-bb[2] + if ht==0 or ht<0 then + else + d.height=ht + end + if dp==0 or dp<0 then + else + d.depth=dp + end + end + end + end + end +end +local function somecopy(old) + if old then + local new={} + if type(old)=="table" then + for k,v in next,old do + if k=="glyphs" then + elseif type(v)=="table" then + new[k]=somecopy(v) + else + new[k]=v + end + end + else + for i=1,#mainfields do + local k=mainfields[i] + local v=old[k] + if k=="glyphs" then + elseif type(v)=="table" then + new[k]=somecopy(v) + else + new[k]=v end + end end -end - -actions["cleanup tables"] = function(data,filename,raw) - data.resources.indices = nil -- not needed - data.helpers = nil -end - --- kern: ttf has a table with kerns --- --- Weird, as maxfirst and maxseconds can have holes, first seems to be indexed, but --- seconds can start at 2 .. this need to be fixed as getn as well as # are sort of --- unpredictable alternatively we could force an [1] if not set (maybe I will do that --- anyway). - --- we can share { } as it is never set - ---- ligatures have an extra specification.char entry that we don't use - -actions["reorganize glyph lookups"] = function(data,filename,raw) - local resources = data.resources - local unicodes = resources.unicodes - local descriptions = data.descriptions - local splitter = data.helpers.tounicodelist - - local lookuptypes = resources.lookuptypes - - for unicode, description in next, descriptions do - local lookups = description.glyph.lookups - if lookups then - for tag, lookuplist in next, lookups do - for l=1,#lookuplist do - local lookup = lookuplist[l] - local specification = lookup.specification - local lookuptype = lookup.type - local lt = lookuptypes[tag] - if not lt then - lookuptypes[tag] = lookuptype - elseif lt ~= lookuptype then - report_otf("conflicting lookuptypes: %s => %s and %s",tag,lt,lookuptype) - end - if lookuptype == "ligature" then - lookuplist[l] = { lpegmatch(splitter,specification.components) } - elseif lookuptype == "alternate" then - lookuplist[l] = { lpegmatch(splitter,specification.components) } - elseif lookuptype == "substitution" then - lookuplist[l] = unicodes[specification.variant] - elseif lookuptype == "multiple" then - lookuplist[l] = { lpegmatch(splitter,specification.components) } - elseif lookuptype == "position" then - lookuplist[l] = { - specification.x or 0, - specification.y or 0, - specification.h or 0, - specification.v or 0 - } - elseif lookuptype == "pair" then - local one = specification.offsets[1] - local two = specification.offsets[2] - local paired = unicodes[specification.paired] - if one then - if two then - lookuplist[l] = { paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0 } } - else - lookuplist[l] = { paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 } } - end - else - if two then - lookuplist[l] = { paired, { }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0} } -- maybe nil instead of { } - else - lookuplist[l] = { paired } - end - end - end + return new + else + return {} + end +end +actions["prepare glyphs"]=function(data,filename,raw) + local rawglyphs=raw.glyphs + local rawsubfonts=raw.subfonts + local rawcidinfo=raw.cidinfo + local criterium=constructors.privateoffset + local private=criterium + local resources=data.resources + local metadata=data.metadata + local properties=data.properties + local descriptions=data.descriptions + local unicodes=resources.unicodes + local indices=resources.indices + local duplicates=resources.duplicates + local variants=resources.variants + if rawsubfonts then + metadata.subfonts={} + properties.cidinfo=rawcidinfo + if rawcidinfo.registry then + local cidmap=fonts.cid.getmap(rawcidinfo) + if cidmap then + rawcidinfo.usedname=cidmap.usedname + local nofnames,nofunicodes=0,0 + local cidunicodes,cidnames=cidmap.unicodes,cidmap.names + for cidindex=1,#rawsubfonts do + local subfont=rawsubfonts[cidindex] + local cidglyphs=subfont.glyphs + metadata.subfonts[cidindex]=somecopy(subfont) + for index=0,subfont.glyphcnt-1 do + local glyph=cidglyphs[index] + if glyph then + local unicode=glyph.unicode + local name=glyph.name or cidnames[index] + if not unicode or unicode==-1 or unicode>=criterium then + unicode=cidunicodes[index] + end + if not unicode or unicode==-1 or unicode>=criterium then + if not name then + name=format("u%06X",private) end - end - local slookups, mlookups - for tag, lookuplist in next, lookups do - if #lookuplist == 1 then - if slookups then - slookups[tag] = lookuplist[1] - else - slookups = { [tag] = lookuplist[1] } - end - else - if mlookups then - mlookups[tag] = lookuplist - else - mlookups = { [tag] = lookuplist } - end + unicode=private + unicodes[name]=private + if trace_private then + report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private) end + private=private+1 + nofnames=nofnames+1 + else + if not name then + name=format("u%06X",unicode) + end + unicodes[name]=unicode + nofunicodes=nofunicodes+1 + end + indices[index]=unicode + local description={ + boundingbox=glyph.boundingbox, + name=glyph.name or name or "unknown", + cidindex=cidindex, + index=index, + glyph=glyph, + } + descriptions[unicode]=description + else end - if slookups then - description.slookups = slookups - end - if mlookups then - description.mlookups = mlookups - end + end + end + if trace_loading then + report_otf("cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes,nofnames,nofunicodes+nofnames) + end + elseif trace_loading then + report_otf("unable to remap cid font, missing cid file for %s",filename) + end + elseif trace_loading then + report_otf("font %s has no glyphs",filename) + end + else + for index=0,raw.glyphcnt-1 do + local glyph=rawglyphs[index] + if glyph then + local unicode=glyph.unicode + local name=glyph.name + if not unicode or unicode==-1 or unicode>=criterium then + unicode=private + unicodes[name]=private + if trace_private then + report_otf("enhance: glyph %s at index 0x%04X is moved to private unicode slot U+%05X",name,index,private) + end + private=private+1 + else + unicodes[name]=unicode end + indices[index]=unicode + if not name then + name=format("u%06X",unicode) + end + descriptions[unicode]={ + boundingbox=glyph.boundingbox, + name=name, + index=index, + glyph=glyph, + } + local altuni=glyph.altuni + if altuni then + local d + for i=1,#altuni do + local a=altuni[i] + local u=a.unicode + local v=a.variant + if v then + local vv=variants[v] + if vv then + vv[u]=unicode + else + vv={ [u]=unicode } + variants[v]=vv + end + elseif d then + d[#d+1]=u + else + d={ u } + end + end + if d then + duplicates[unicode]=d + end + end + else + report_otf("potential problem: glyph 0x%04X is used but empty",index) + end + end + end + resources.private=private +end +actions["check encoding"]=function(data,filename,raw) + local descriptions=data.descriptions + local resources=data.resources + local properties=data.properties + local unicodes=resources.unicodes + local indices=resources.indices + local mapdata=raw.map or {} + local unicodetoindex=mapdata and mapdata.map or {} + local encname=lower(data.enc_name or mapdata.enc_name or "") + local criterium=0xFFFF + if find(encname,"unicode") then + if trace_loading then + report_otf("checking embedded unicode map '%s'",encname) end - + for unicode,index in next,unicodetoindex do + if unicode<=criterium and not descriptions[unicode] then + local parent=indices[index] + if parent then + report_otf("weird, unicode U+%05X points to U+%05X with index 0x%04X",unicode,parent,index) + else + report_otf("weird, unicode U+%05X points to nowhere with index 0x%04X",unicode,index) + end + end + end + elseif properties.cidinfo then + report_otf("warning: no unicode map, used cidmap '%s'",properties.cidinfo.usedname or "?") + else + report_otf("warning: non unicode map '%s', only using glyph unicode data",encname or "whatever") + end + if mapdata then + mapdata.map={} + end +end +actions["add duplicates"]=function(data,filename,raw) + local descriptions=data.descriptions + local resources=data.resources + local properties=data.properties + local unicodes=resources.unicodes + local indices=resources.indices + local duplicates=resources.duplicates + for unicode,d in next,duplicates do + for i=1,#d do + local u=d[i] + if not descriptions[u] then + local description=descriptions[unicode] + local duplicate=table.copy(description) + duplicate.comment=format("copy of U+%05X",unicode) + descriptions[u]=duplicate + local n=0 + for _,description in next,descriptions do + if kerns then + local kerns=description.kerns + for _,k in next,kerns do + local ku=k[unicode] + if ku then + k[u]=ku + n=n+1 + end + end + end + end + if trace_loading then + report_otf("duplicating U+%05X to U+%05X with index 0x%04X (%s kerns)",unicode,u,description.index,n) + end + end + end + end +end +actions["analyze glyphs"]=function(data,filename,raw) + local descriptions=data.descriptions + local resources=data.resources + local metadata=data.metadata + local properties=data.properties + local hasitalics=false + local widths={} + local marks={} + for unicode,description in next,descriptions do + local glyph=description.glyph + local italic=glyph.italic_correction + if not italic then + elseif italic==0 then + else + description.italic=italic + hasitalics=true + end + local width=glyph.width + widths[width]=(widths[width] or 0)+1 + local class=glyph.class + if class then + if class=="mark" then + marks[unicode]=true + end + description.class=class + end + end + properties.hasitalics=hasitalics + resources.marks=marks + local wd,most=0,1 + for k,v in next,widths do + if v>most then + wd,most=k,v + end + end + if most>1000 then + if trace_loading then + report_otf("most common width: %s (%s times), sharing (cjk font)",wd,most) + end + for unicode,description in next,descriptions do + if description.width==wd then + else + description.width=description.glyph.width + end + end + resources.defaultwidth=wd + else + for unicode,description in next,descriptions do + description.width=description.glyph.width + end + end +end +actions["reorganize mark classes"]=function(data,filename,raw) + local mark_classes=raw.mark_classes + if mark_classes then + local resources=data.resources + local unicodes=resources.unicodes + local markclasses={} + resources.markclasses=markclasses + for name,class in next,mark_classes do + local t={} + for s in gmatch(class,"[^ ]+") do + t[unicodes[s]]=true + end + markclasses[name]=t + end + end +end +actions["reorganize features"]=function(data,filename,raw) + local features={} + data.resources.features=features + for k,what in next,otf.glists do + local dw=raw[what] + if dw then + local f={} + features[what]=f + for i=1,#dw do + local d=dw[i] + local dfeatures=d.features + if dfeatures then + for i=1,#dfeatures do + local df=dfeatures[i] + local tag=strip(lower(df.tag)) + local ft=f[tag] + if not ft then + ft={} + f[tag]=ft + end + local dscripts=df.scripts + for i=1,#dscripts do + local d=dscripts[i] + local languages=d.langs + local script=strip(lower(d.script)) + local fts=ft[script] if not fts then fts={} ft[script]=fts end + for i=1,#languages do + fts[strip(lower(languages[i]))]=true + end + end + end + end + end + end + end +end +actions["reorganize anchor classes"]=function(data,filename,raw) + local resources=data.resources + local anchor_to_lookup={} + local lookup_to_anchor={} + resources.anchor_to_lookup=anchor_to_lookup + resources.lookup_to_anchor=lookup_to_anchor + local classes=raw.anchor_classes + if classes then + for c=1,#classes do + local class=classes[c] + local anchor=class.name + local lookups=class.lookup + if type(lookups)~="table" then + lookups={ lookups } + end + local a=anchor_to_lookup[anchor] + if not a then + a={} + anchor_to_lookup[anchor]=a + end + for l=1,#lookups do + local lookup=lookups[l] + local l=lookup_to_anchor[lookup] + if l then + l[anchor]=true + else + l={ [anchor]=true } + lookup_to_anchor[lookup]=l + end + a[lookup]=true + end + end + end end - -actions["reorganize glyph anchors"] = function(data,filename,raw) -- when we replace inplace we safe entries - local descriptions = data.descriptions - for unicode, description in next, descriptions do - local anchors = description.glyph.anchors - if anchors then - for class, data in next, anchors do - if class == "baselig" then - for tag, specification in next, data do - for i=1,#specification do - local si = specification[i] - specification[i] = { si.x or 0, si.y or 0 } - end - end - else - for tag, specification in next, data do - data[tag] = { specification.x or 0, specification.y or 0 } - end - end - end - description.anchors = anchors +actions["prepare tounicode"]=function(data,filename,raw) + fonts.mappings.addtounicode(data,filename) +end +local g_directions={ + gsub_contextchain=1, + gpos_contextchain=1, + gsub_reversecontextchain=-1, + gpos_reversecontextchain=-1, +} +local function supported(features) + for i=1,#features do + if features[i].ismac then + return false + end + end + return true +end +actions["reorganize subtables"]=function(data,filename,raw) + local resources=data.resources + local sequences={} + local lookups={} + local chainedfeatures={} + resources.sequences=sequences + resources.lookups=lookups + for _,what in next,otf.glists do + local dw=raw[what] + if dw then + for k=1,#dw do + local gk=dw[k] + local features=gk.features + if not features or supported(features) then + local typ=gk.type + local chain=g_directions[typ] or 0 + local subtables=gk.subtables + if subtables then + local t={} + for s=1,#subtables do + t[s]=subtables[s].name + end + subtables=t + end + local flags,markclass=gk.flags,nil + if flags then + local t={ + (flags.ignorecombiningmarks and "mark") or false, + (flags.ignoreligatures and "ligature") or false, + (flags.ignorebaseglyphs and "base") or false, + flags.r2l or false, + } + markclass=flags.mark_class + if markclass then + markclass=resources.markclasses[markclass] + end + flags=t + end + local name=gk.name + if not name then + report_otf("skipping weird lookup number %s",k) + elseif features then + local f={} + for i=1,#features do + local df=features[i] + local tag=strip(lower(df.tag)) + local ft=f[tag] if not ft then ft={} f[tag]=ft end + local dscripts=df.scripts + for i=1,#dscripts do + local d=dscripts[i] + local languages=d.langs + local script=strip(lower(d.script)) + local fts=ft[script] if not fts then fts={} ft[script]=fts end + for i=1,#languages do + fts[strip(lower(languages[i]))]=true + end + end + end + sequences[#sequences+1]={ + type=typ, + chain=chain, + flags=flags, + name=name, + subtables=subtables, + markclass=markclass, + features=f, + } + else + lookups[name]={ + type=typ, + chain=chain, + flags=flags, + subtables=subtables, + markclass=markclass, + } + end end + end end + end end - --- modes: node, base, none - -function otf.setfeatures(tfmdata,features) - local okay = constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf) - if okay then - return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf) - else - return { } -- will become false +actions["prepare lookups"]=function(data,filename,raw) + local lookups=raw.lookups + if lookups then + data.lookups=lookups + end +end +local function t_uncover(splitter,cache,covers) + local result={} + for n=1,#covers do + local cover=covers[n] + local uncovered=cache[cover] + if not uncovered then + uncovered=lpegmatch(splitter,cover) + cache[cover]=uncovered + end + result[n]=uncovered + end + return result +end +local function s_uncover(splitter,cache,cover) + if cover=="" then + return nil + else + local uncovered=cache[cover] + if not uncovered then + uncovered=lpegmatch(splitter,cover) + cache[cover]=uncovered end + return { uncovered } + end end - --- the first version made a top/mid/not extensible table, now we just --- pass on the variants data and deal with it in the tfm scaler (there --- is no longer an extensible table anyway) --- --- we cannot share descriptions as virtual fonts might extend them (ok, --- we could use a cache with a hash --- --- we already assing an empty tabel to characters as we can add for --- instance protruding info and loop over characters; one is not supposed --- to change descriptions and if one does so one should make a copy! - -local function copytotfm(data,cache_id) - if data then - local metadata = data.metadata - local resources = data.resources - local properties = derivetable(data.properties) - local descriptions = derivetable(data.descriptions) - local goodies = derivetable(data.goodies) - local characters = { } - local parameters = { } - local mathparameters = { } - -- - local pfminfo = metadata.pfminfo or { } - local resources = data.resources - local unicodes = resources.unicodes - -- local mode = data.mode or "base" - local spaceunits = 500 - local spacer = "space" - local designsize = metadata.designsize or metadata.design_size or 100 - local mathspecs = metadata.math - -- - if designsize == 0 then - designsize = 100 - end - if mathspecs then - for name, value in next, mathspecs do - mathparameters[name] = value - end - end - for unicode, _ in next, data.descriptions do -- use parent table - characters[unicode] = { } - end - if mathspecs then - -- we could move this to the scaler but not that much is saved - -- and this is cleaner - for unicode, character in next, characters do - local d = descriptions[unicode] - local m = d.math - if m then - -- watch out: luatex uses horiz_variants for the parts - local variants = m.horiz_variants - local parts = m.horiz_parts - -- local done = { [unicode] = true } - if variants then - local c = character - for i=1,#variants do - local un = variants[i] - -- if done[un] then - -- -- report_otf("skipping cyclic reference U+%05X in math variant U+%05X",un,unicode) - -- else - c.next = un - c = characters[un] - -- done[un] = true - -- end - end -- c is now last in chain - c.horiz_variants = parts - elseif parts then - character.horiz_variants = parts - end - local variants = m.vert_variants - local parts = m.vert_parts - -- local done = { [unicode] = true } - if variants then - local c = character - for i=1,#variants do - local un = variants[i] - -- if done[un] then - -- -- report_otf("skipping cyclic reference U+%05X in math variant U+%05X",un,unicode) - -- else - c.next = un - c = characters[un] - -- done[un] = true - -- end - end -- c is now last in chain - c.vert_variants = parts - elseif parts then - character.vert_variants = parts - end - local italic_correction = m.vert_italic_correction - if italic_correction then - character.vert_italic_correction = italic_correction -- was c. - end - local top_accent = m.top_accent - if top_accent then - character.top_accent = top_accent - end - local kerns = m.kerns - if kerns then - character.mathkerns = kerns - end +local function t_hashed(t,cache) + if t then + local ht={} + for i=1,#t do + local ti=t[i] + local tih=cache[ti] + if not tih then + tih={} + for i=1,#ti do + tih[ti[i]]=true + end + cache[ti]=tih + end + ht[i]=tih + end + return ht + else + return nil + end +end +local s_hashed=t_hashed +local function r_uncover(splitter,cache,cover,replacements) + if cover=="" then + return nil + else + local uncovered=cover[1] + local replaced=cache[replacements] + if not replaced then + replaced=lpegmatch(splitter,replacements) + cache[replacements]=replaced + end + local nu,nr=#uncovered,#replaced + local r={} + if nu==nr then + for i=1,nu do + r[uncovered[i]]=replaced[i] + end + end + return r + end +end +actions["reorganize lookups"]=function(data,filename,raw) + if data.lookups then + local splitter=data.helpers.tounicodetable + local t_u_cache={} + local s_u_cache=t_u_cache + local t_h_cache={} + local s_h_cache=t_h_cache + local r_u_cache={} + for _,lookup in next,data.lookups do + local rules=lookup.rules + if rules then + local format=lookup.format + if format=="class" then + local before_class=lookup.before_class + if before_class then + before_class=t_uncover(splitter,t_u_cache,reversed(before_class)) + end + local current_class=lookup.current_class + if current_class then + current_class=t_uncover(splitter,t_u_cache,current_class) + end + local after_class=lookup.after_class + if after_class then + after_class=t_uncover(splitter,t_u_cache,after_class) + end + for i=1,#rules do + local rule=rules[i] + local class=rule.class + local before=class.before + if before then + for i=1,#before do + before[i]=before_class[before[i]] or {} + end + rule.before=t_hashed(before,t_h_cache) + end + local current=class.current + local lookups=rule.lookups + if current then + for i=1,#current do + current[i]=current_class[current[i]] or {} + if lookups and not lookups[i] then + lookups[i]="" + end + end + rule.current=t_hashed(current,t_h_cache) + end + local after=class.after + if after then + for i=1,#after do + after[i]=after_class[after[i]] or {} + end + rule.after=t_hashed(after,t_h_cache) + end + rule.class=nil + end + lookup.before_class=nil + lookup.current_class=nil + lookup.after_class=nil + lookup.format="coverage" + elseif format=="coverage" then + for i=1,#rules do + local rule=rules[i] + local coverage=rule.coverage + if coverage then + local before=coverage.before + if before then + before=t_uncover(splitter,t_u_cache,reversed(before)) + rule.before=t_hashed(before,t_h_cache) + end + local current=coverage.current + if current then + current=t_uncover(splitter,t_u_cache,current) + rule.current=t_hashed(current,t_h_cache) + end + local after=coverage.after + if after then + after=t_uncover(splitter,t_u_cache,after) + rule.after=t_hashed(after,t_h_cache) + end + rule.coverage=nil + end + end + elseif format=="reversecoverage" then + for i=1,#rules do + local rule=rules[i] + local reversecoverage=rule.reversecoverage + if reversecoverage then + local before=reversecoverage.before + if before then + before=t_uncover(splitter,t_u_cache,reversed(before)) + rule.before=t_hashed(before,t_h_cache) + end + local current=reversecoverage.current + if current then + current=t_uncover(splitter,t_u_cache,current) + rule.current=t_hashed(current,t_h_cache) + end + local after=reversecoverage.after + if after then + after=t_uncover(splitter,t_u_cache,after) + rule.after=t_hashed(after,t_h_cache) + end + local replacements=reversecoverage.replacements + if replacements then + rule.replacements=r_uncover(splitter,r_u_cache,current,replacements) + end + rule.reversecoverage=nil + end + end + elseif format=="glyphs" then + for i=1,#rules do + local rule=rules[i] + local glyphs=rule.glyphs + if glyphs then + local fore=glyphs.fore + if fore and fore~="" then + fore=s_uncover(splitter,s_u_cache,fore) + rule.before=s_hashed(fore,s_h_cache) + end + local back=glyphs.back + if back then + back=s_uncover(splitter,s_u_cache,back) + rule.after=s_hashed(back,s_h_cache) + end + local names=glyphs.names + if names then + names=s_uncover(splitter,s_u_cache,names) + rule.current=s_hashed(names,s_h_cache) + end + rule.glyphs=nil + end + end + end + end + end + end +end +local function check_variants(unicode,the_variants,splitter,unicodes) + local variants=the_variants.variants + if variants then + local glyphs=lpegmatch(splitter,variants) + local done={ [unicode]=true } + local n=0 + for i=1,#glyphs do + local g=glyphs[i] + if done[g] then + report_otf("skipping cyclic reference U+%05X in math variant U+%05X",g,unicode) + else + if n==0 then + n=1 + variants={ g } + else + n=n+1 + variants[n]=g + end + done[g]=true + end + end + if n==0 then + variants=nil + end + end + local parts=the_variants.parts + if parts then + local p=#parts + if p>0 then + for i=1,p do + local pi=parts[i] + pi.glyph=unicodes[pi.component] or 0 + pi.component=nil + end + else + parts=nil + end + end + local italic_correction=the_variants.italic_correction + if italic_correction and italic_correction==0 then + italic_correction=nil + end + return variants,parts,italic_correction +end +actions["analyze math"]=function(data,filename,raw) + if raw.math then + data.metadata.math=raw.math + local unicodes=data.resources.unicodes + local splitter=data.helpers.tounicodetable + for unicode,description in next,data.descriptions do + local glyph=description.glyph + local mathkerns=glyph.mathkern + local horiz_variants=glyph.horiz_variants + local vert_variants=glyph.vert_variants + local top_accent=glyph.top_accent + if mathkerns or horiz_variants or vert_variants or top_accent then + local math={} + if top_accent then + math.top_accent=top_accent + end + if mathkerns then + for k,v in next,mathkerns do + if not next(v) then + mathkerns[k]=nil + else + for k,v in next,v do + if v==0 then + k[v]=nil end + end end + end + math.kerns=mathkerns end - -- end math - local monospaced = metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion == "Monospaced") - local charwidth = pfminfo.avgwidth -- or unset - local italicangle = metadata.italicangle - local charxheight = pfminfo.os2_xheight and pfminfo.os2_xheight > 0 and pfminfo.os2_xheight - properties.monospaced = monospaced - parameters.italicangle = italicangle - parameters.charwidth = charwidth - parameters.charxheight = charxheight - -- - local space = 0x0020 -- unicodes['space'], unicodes['emdash'] - local emdash = 0x2014 -- unicodes['space'], unicodes['emdash'] - if monospaced then - if descriptions[space] then - spaceunits, spacer = descriptions[space].width, "space" - end - if not spaceunits and descriptions[emdash] then - spaceunits, spacer = descriptions[emdash].width, "emdash" - end - if not spaceunits and charwidth then - spaceunits, spacer = charwidth, "charwidth" - end - else - if descriptions[space] then - spaceunits, spacer = descriptions[space].width, "space" - end - if not spaceunits and descriptions[emdash] then - spaceunits, spacer = descriptions[emdash].width/2, "emdash/2" - end - if not spaceunits and charwidth then - spaceunits, spacer = charwidth, "charwidth" - end + if horiz_variants then + math.horiz_variants,math.horiz_parts,math.horiz_italic_correction=check_variants(unicode,horiz_variants,splitter,unicodes) end - spaceunits = tonumber(spaceunits) or 500 -- brrr - -- we need a runtime lookup because of running from cdrom or zip, brrr (shouldn't we use the basename then?) - local filename = constructors.checkedfilename(resources) - local fontname = metadata.fontname - local fullname = metadata.fullname or fontname - local units = metadata.units_per_em or 1000 - -- - if units == 0 then -- catch bugs in fonts - units = 1000 - metadata.units_per_em = 1000 - end - -- - parameters.slant = 0 - parameters.space = spaceunits -- 3.333 (cmr10) - parameters.space_stretch = units/2 -- 500 -- 1.666 (cmr10) - parameters.space_shrink = 1*units/3 -- 333 -- 1.111 (cmr10) - parameters.x_height = 2*units/5 -- 400 - parameters.quad = units -- 1000 - if spaceunits < 2*units/5 then - -- todo: warning - end - if italicangle then - parameters.italicangle = italicangle - parameters.italicfactor = math.cos(math.rad(90+italicangle)) - parameters.slant = - math.round(math.tan(italicangle*math.pi/180)) - end - if monospaced then - parameters.space_stretch = 0 - parameters.space_shrink = 0 - elseif syncspace then -- - parameters.space_stretch = spaceunits/2 - parameters.space_shrink = spaceunits/3 - end - parameters.extra_space = parameters.space_shrink -- 1.111 (cmr10) - if charxheight then - parameters.x_height = charxheight - else - local x = 0x78 -- unicodes['x'] - if x then - local x = descriptions[x] - if x then - parameters.x_height = x.height - end - end + if vert_variants then + math.vert_variants,math.vert_parts,math.vert_italic_correction=check_variants(unicode,vert_variants,splitter,unicodes) end - -- - parameters.designsize = (designsize/10)*65536 - parameters.ascender = abs(metadata.ascent or 0) - parameters.descender = abs(metadata.descent or 0) - parameters.units = units - -- - properties.space = spacer - properties.encodingbytes = 2 - properties.format = data.format or fonts.formats[filename] or "opentype" - properties.noglyphnames = true - properties.filename = filename - properties.fontname = fontname - properties.fullname = fullname - properties.psname = fontname or fullname - properties.name = filename or fullname - -- - -- properties.name = specification.name - -- properties.sub = specification.sub - return { - characters = characters, - descriptions = descriptions, - parameters = parameters, - mathparameters = mathparameters, - resources = resources, - properties = properties, - goodies = goodies, - } + local italic_correction=description.italic + if italic_correction and italic_correction~=0 then + math.italic_correction=italic_correction + end + description.math=math + end end + end end - -local function otftotfm(specification) - local cache_id = specification.hash - local tfmdata = containers.read(constructors.cache,cache_id) - if not tfmdata then - local name = specification.name - local sub = specification.sub - local filename = specification.filename - local format = specification.format - local features = specification.features.normal - local rawdata = otf.load(filename,format,sub,features and features.featurefile) - if rawdata and next(rawdata) then - rawdata.lookuphash = { } - tfmdata = copytotfm(rawdata,cache_id) - if tfmdata and next(tfmdata) then - -- at this moment no characters are assigned yet, only empty slots - local features = constructors.checkedfeatures("otf",features) - local shared = tfmdata.shared - if not shared then - shared = { } - tfmdata.shared = shared +actions["reorganize glyph kerns"]=function(data,filename,raw) + local descriptions=data.descriptions + local resources=data.resources + local unicodes=resources.unicodes + for unicode,description in next,descriptions do + local kerns=description.glyph.kerns + if kerns then + local newkerns={} + for k,kern in next,kerns do + local name=kern.char + local offset=kern.off + local lookup=kern.lookup + if name and offset and lookup then + local unicode=unicodes[name] + if unicode then + if type(lookup)=="table" then + for l=1,#lookup do + local lookup=lookup[l] + local lookupkerns=newkerns[lookup] + if lookupkerns then + lookupkerns[unicode]=offset + else + newkerns[lookup]={ [unicode]=offset } end - shared.rawdata = rawdata - -- shared.features = features -- default - shared.dynamics = { } - -- shared.processes = { } - tfmdata.changed = { } - shared.features = features - shared.processes = otf.setfeatures(tfmdata,features) - end + end + else + local lookupkerns=newkerns[lookup] + if lookupkerns then + lookupkerns[unicode]=offset + else + newkerns[lookup]={ [unicode]=offset } + end + end + elseif trace_loading then + report_otf("problems with unicode %s of kern %s of glyph U+%05X",name,k,unicode) + end + end + end + description.kerns=newkerns + end + end +end +actions["merge kern classes"]=function(data,filename,raw) + local gposlist=raw.gpos + if gposlist then + local descriptions=data.descriptions + local resources=data.resources + local unicodes=resources.unicodes + local splitter=data.helpers.tounicodetable + for gp=1,#gposlist do + local gpos=gposlist[gp] + local subtables=gpos.subtables + if subtables then + for s=1,#subtables do + local subtable=subtables[s] + local kernclass=subtable.kernclass + if kernclass then + local split={} + for k=1,#kernclass do + local kcl=kernclass[k] + local firsts=kcl.firsts + local seconds=kcl.seconds + local offsets=kcl.offsets + local lookups=kcl.lookup + if type(lookups)~="table" then + lookups={ lookups } + end + for n,s in next,firsts do + split[s]=split[s] or lpegmatch(splitter,s) + end + local maxseconds=0 + for n,s in next,seconds do + if n>maxseconds then + maxseconds=n + end + split[s]=split[s] or lpegmatch(splitter,s) + end + for l=1,#lookups do + local lookup=lookups[l] + for fk=1,#firsts do + local fv=firsts[fk] + local splt=split[fv] + if splt then + local extrakerns={} + local baseoffset=(fk-1)*maxseconds + for sk=2,maxseconds do + local sv=seconds[sk] + local splt=split[sv] + if splt then + local offset=offsets[baseoffset+sk] + if offset then + for i=1,#splt do + extrakerns[splt[i]]=offset + end + end + end + end + for i=1,#splt do + local first_unicode=splt[i] + local description=descriptions[first_unicode] + if description then + local kerns=description.kerns + if not kerns then + kerns={} + description.kerns=kerns + end + local lookupkerns=kerns[lookup] + if not lookupkerns then + lookupkerns={} + kerns[lookup]=lookupkerns + end + for second_unicode,kern in next,extrakerns do + lookupkerns[second_unicode]=kern + end + elseif trace_loading then + report_otf("no glyph data for U+%05X",first_unicode) + end + end + end + end + end + end + subtable.kernclass={} + end + end + end + end + end +end +actions["check glyphs"]=function(data,filename,raw) + for unicode,description in next,data.descriptions do + description.glyph=nil + end +end +actions["check metadata"]=function(data,filename,raw) + local metadata=data.metadata + for _,k in next,mainfields do + if valid_fields[k] then + local v=raw[k] + if not metadata[k] then + metadata[k]=v + end + end + end + local ttftables=metadata.ttf_tables + if ttftables then + for i=1,#ttftables do + ttftables[i].data="deleted" + end + end +end +actions["cleanup tables"]=function(data,filename,raw) + data.resources.indices=nil + data.helpers=nil +end +actions["reorganize glyph lookups"]=function(data,filename,raw) + local resources=data.resources + local unicodes=resources.unicodes + local descriptions=data.descriptions + local splitter=data.helpers.tounicodelist + local lookuptypes=resources.lookuptypes + for unicode,description in next,descriptions do + local lookups=description.glyph.lookups + if lookups then + for tag,lookuplist in next,lookups do + for l=1,#lookuplist do + local lookup=lookuplist[l] + local specification=lookup.specification + local lookuptype=lookup.type + local lt=lookuptypes[tag] + if not lt then + lookuptypes[tag]=lookuptype + elseif lt~=lookuptype then + report_otf("conflicting lookuptypes: %s => %s and %s",tag,lt,lookuptype) + end + if lookuptype=="ligature" then + lookuplist[l]={ lpegmatch(splitter,specification.components) } + elseif lookuptype=="alternate" then + lookuplist[l]={ lpegmatch(splitter,specification.components) } + elseif lookuptype=="substitution" then + lookuplist[l]=unicodes[specification.variant] + elseif lookuptype=="multiple" then + lookuplist[l]={ lpegmatch(splitter,specification.components) } + elseif lookuptype=="position" then + lookuplist[l]={ + specification.x or 0, + specification.y or 0, + specification.h or 0, + specification.v or 0 + } + elseif lookuptype=="pair" then + local one=specification.offsets[1] + local two=specification.offsets[2] + local paired=unicodes[specification.paired] + if one then + if two then + lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 },{ two.x or 0,two.y or 0,two.h or 0,two.v or 0 } } + else + lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 } } + end + else + if two then + lookuplist[l]={ paired,{},{ two.x or 0,two.y or 0,two.h or 0,two.v or 0} } + else + lookuplist[l]={ paired } + end + end + end + end + end + local slookups,mlookups + for tag,lookuplist in next,lookups do + if #lookuplist==1 then + if slookups then + slookups[tag]=lookuplist[1] + else + slookups={ [tag]=lookuplist[1] } + end + else + if mlookups then + mlookups[tag]=lookuplist + else + mlookups={ [tag]=lookuplist } + end + end + end + if slookups then + description.slookups=slookups + end + if mlookups then + description.mlookups=mlookups + end + end + end +end +actions["reorganize glyph anchors"]=function(data,filename,raw) + local descriptions=data.descriptions + for unicode,description in next,descriptions do + local anchors=description.glyph.anchors + if anchors then + for class,data in next,anchors do + if class=="baselig" then + for tag,specification in next,data do + for i=1,#specification do + local si=specification[i] + specification[i]={ si.x or 0,si.y or 0 } + end + end + else + for tag,specification in next,data do + data[tag]={ specification.x or 0,specification.y or 0 } + end end - containers.write(constructors.cache,cache_id,tfmdata) + end + description.anchors=anchors end - return tfmdata + end +end +function otf.setfeatures(tfmdata,features) + local okay=constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf) + if okay then + return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf) + else + return {} + end +end +local function copytotfm(data,cache_id) + if data then + local metadata=data.metadata + local resources=data.resources + local properties=derivetable(data.properties) + local descriptions=derivetable(data.descriptions) + local goodies=derivetable(data.goodies) + local characters={} + local parameters={} + local mathparameters={} + local pfminfo=metadata.pfminfo or {} + local resources=data.resources + local unicodes=resources.unicodes + local spaceunits=500 + local spacer="space" + local designsize=metadata.designsize or metadata.design_size or 100 + local mathspecs=metadata.math + if designsize==0 then + designsize=100 + end + if mathspecs then + for name,value in next,mathspecs do + mathparameters[name]=value + end + end + for unicode,_ in next,data.descriptions do + characters[unicode]={} + end + if mathspecs then + for unicode,character in next,characters do + local d=descriptions[unicode] + local m=d.math + if m then + local variants=m.horiz_variants + local parts=m.horiz_parts + if variants then + local c=character + for i=1,#variants do + local un=variants[i] + c.next=un + c=characters[un] + end + c.horiz_variants=parts + elseif parts then + character.horiz_variants=parts + end + local variants=m.vert_variants + local parts=m.vert_parts + if variants then + local c=character + for i=1,#variants do + local un=variants[i] + c.next=un + c=characters[un] + end + c.vert_variants=parts + elseif parts then + character.vert_variants=parts + end + local italic_correction=m.vert_italic_correction + if italic_correction then + character.vert_italic_correction=italic_correction + end + local top_accent=m.top_accent + if top_accent then + character.top_accent=top_accent + end + local kerns=m.kerns + if kerns then + character.mathkerns=kerns + end + end + end + end + local monospaced=metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion=="Monospaced") + local charwidth=pfminfo.avgwidth + local italicangle=metadata.italicangle + local charxheight=pfminfo.os2_xheight and pfminfo.os2_xheight>0 and pfminfo.os2_xheight + properties.monospaced=monospaced + parameters.italicangle=italicangle + parameters.charwidth=charwidth + parameters.charxheight=charxheight + local space=0x0020 + local emdash=0x2014 + if monospaced then + if descriptions[space] then + spaceunits,spacer=descriptions[space].width,"space" + end + if not spaceunits and descriptions[emdash] then + spaceunits,spacer=descriptions[emdash].width,"emdash" + end + if not spaceunits and charwidth then + spaceunits,spacer=charwidth,"charwidth" + end + else + if descriptions[space] then + spaceunits,spacer=descriptions[space].width,"space" + end + if not spaceunits and descriptions[emdash] then + spaceunits,spacer=descriptions[emdash].width/2,"emdash/2" + end + if not spaceunits and charwidth then + spaceunits,spacer=charwidth,"charwidth" + end + end + spaceunits=tonumber(spaceunits) or 500 + local filename=constructors.checkedfilename(resources) + local fontname=metadata.fontname + local fullname=metadata.fullname or fontname + local units=metadata.units_per_em or 1000 + if units==0 then + units=1000 + metadata.units_per_em=1000 + end + parameters.slant=0 + parameters.space=spaceunits + parameters.space_stretch=units/2 + parameters.space_shrink=1*units/3 + parameters.x_height=2*units/5 + parameters.quad=units + if spaceunits<2*units/5 then + end + if italicangle then + parameters.italicangle=italicangle + parameters.italicfactor=math.cos(math.rad(90+italicangle)) + parameters.slant=- math.round(math.tan(italicangle*math.pi/180)) + end + if monospaced then + parameters.space_stretch=0 + parameters.space_shrink=0 + elseif syncspace then + parameters.space_stretch=spaceunits/2 + parameters.space_shrink=spaceunits/3 + end + parameters.extra_space=parameters.space_shrink + if charxheight then + parameters.x_height=charxheight + else + local x=0x78 + if x then + local x=descriptions[x] + if x then + parameters.x_height=x.height + end + end + end + parameters.designsize=(designsize/10)*65536 + parameters.ascender=abs(metadata.ascent or 0) + parameters.descender=abs(metadata.descent or 0) + parameters.units=units + properties.space=spacer + properties.encodingbytes=2 + properties.format=data.format or fonts.formats[filename] or "opentype" + properties.noglyphnames=true + properties.filename=filename + properties.fontname=fontname + properties.fullname=fullname + properties.psname=fontname or fullname + properties.name=filename or fullname + return { + characters=characters, + descriptions=descriptions, + parameters=parameters, + mathparameters=mathparameters, + resources=resources, + properties=properties, + goodies=goodies, + } + end +end +local function otftotfm(specification) + local cache_id=specification.hash + local tfmdata=containers.read(constructors.cache,cache_id) + if not tfmdata then + local name=specification.name + local sub=specification.sub + local filename=specification.filename + local format=specification.format + local features=specification.features.normal + local rawdata=otf.load(filename,format,sub,features and features.featurefile) + if rawdata and next(rawdata) then + rawdata.lookuphash={} + tfmdata=copytotfm(rawdata,cache_id) + if tfmdata and next(tfmdata) then + local features=constructors.checkedfeatures("otf",features) + local shared=tfmdata.shared + if not shared then + shared={} + tfmdata.shared=shared + end + shared.rawdata=rawdata + shared.dynamics={} + tfmdata.changed={} + shared.features=features + shared.processes=otf.setfeatures(tfmdata,features) + end + end + containers.write(constructors.cache,cache_id,tfmdata) + end + return tfmdata end - local function read_from_otf(specification) - local tfmdata = otftotfm(specification) - if tfmdata then - -- this late ? .. needs checking - tfmdata.properties.name = specification.name - tfmdata.properties.sub = specification.sub - -- - tfmdata = constructors.scale(tfmdata,specification) - local allfeatures = tfmdata.shared.features or specification.features.normal - constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf) - constructors.setname(tfmdata,specification) -- only otf? - fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification) - end - return tfmdata + local tfmdata=otftotfm(specification) + if tfmdata then + tfmdata.properties.name=specification.name + tfmdata.properties.sub=specification.sub + tfmdata=constructors.scale(tfmdata,specification) + local allfeatures=tfmdata.shared.features or specification.features.normal + constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf) + constructors.setname(tfmdata,specification) + fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification) + end + return tfmdata end - local function checkmathsize(tfmdata,mathsize) - local mathdata = tfmdata.shared.rawdata.metadata.math - local mathsize = tonumber(mathsize) - if mathdata then -- we cannot use mathparameters as luatex will complain - local parameters = tfmdata.parameters - parameters.scriptpercentage = mathdata.ScriptPercentScaleDown - parameters.scriptscriptpercentage = mathdata.ScriptScriptPercentScaleDown - parameters.mathsize = mathsize - end + local mathdata=tfmdata.shared.rawdata.metadata.math + local mathsize=tonumber(mathsize) + if mathdata then + local parameters=tfmdata.parameters + parameters.scriptpercentage=mathdata.ScriptPercentScaleDown + parameters.scriptscriptpercentage=mathdata.ScriptScriptPercentScaleDown + parameters.mathsize=mathsize + end end - registerotffeature { - name = "mathsize", - description = "apply mathsize as specified in the font", - initializers = { - base = checkmathsize, - node = checkmathsize, - } + name="mathsize", + description="apply mathsize as specified in the font", + initializers={ + base=checkmathsize, + node=checkmathsize, + } } - --- helpers - function otf.collectlookups(rawdata,kind,script,language) - local sequences = rawdata.resources.sequences - if sequences then - local featuremap, featurelist = { }, { } - for s=1,#sequences do - local sequence = sequences[s] - local features = sequence.features - features = features and features[kind] - features = features and (features[script] or features[default] or features[wildcard]) - features = features and (features[language] or features[default] or features[wildcard]) - if features then - local subtables = sequence.subtables - if subtables then - for s=1,#subtables do - local ss = subtables[s] - if not featuremap[s] then - featuremap[ss] = true - featurelist[#featurelist+1] = ss - end - end - end - end - end - if #featurelist > 0 then - return featuremap, featurelist - end - end - return nil, nil + local sequences=rawdata.resources.sequences + if sequences then + local featuremap,featurelist={},{} + for s=1,#sequences do + local sequence=sequences[s] + local features=sequence.features + features=features and features[kind] + features=features and (features[script] or features[default] or features[wildcard]) + features=features and (features[language] or features[default] or features[wildcard]) + if features then + local subtables=sequence.subtables + if subtables then + for s=1,#subtables do + local ss=subtables[s] + if not featuremap[s] then + featuremap[ss]=true + featurelist[#featurelist+1]=ss + end + end + end + end + end + if #featurelist>0 then + return featuremap,featurelist + end + end + return nil,nil end - --- readers - local function check_otf(forced,specification,suffix,what) - local name = specification.name - if forced then - name = file.addsuffix(name,suffix,true) - end - local fullname = findbinfile(name,suffix) or "" - if fullname == "" then - fullname = fonts.names.getfilename(name,suffix) or "" - end - if fullname ~= "" then - specification.filename = fullname - specification.format = what - return read_from_otf(specification) - end + local name=specification.name + if forced then + name=file.addsuffix(name,suffix,true) + end + local fullname=findbinfile(name,suffix) or "" + if fullname=="" then + fullname=fonts.names.getfilename(name,suffix) or "" + end + if fullname~="" then + specification.filename=fullname + specification.format=what + return read_from_otf(specification) + end end - local function opentypereader(specification,suffix,what) - local forced = specification.forced or "" - if forced == "otf" then - return check_otf(true,specification,forced,"opentype") - elseif forced == "ttf" or forced == "ttc" or forced == "dfont" then - return check_otf(true,specification,forced,"truetype") - else - return check_otf(false,specification,suffix,what) - end -end - -readers.opentype = opentypereader - -local formats = fonts.formats - -formats.otf = "opentype" -formats.ttf = "truetype" -formats.ttc = "truetype" -formats.dfont = "truetype" - -function readers.otf (specification) return opentypereader(specification,"otf",formats.otf ) end -function readers.ttf (specification) return opentypereader(specification,"ttf",formats.ttf ) end -function readers.ttc (specification) return opentypereader(specification,"ttf",formats.ttc ) end + local forced=specification.forced or "" + if forced=="otf" then + return check_otf(true,specification,forced,"opentype") + elseif forced=="ttf" or forced=="ttc" or forced=="dfont" then + return check_otf(true,specification,forced,"truetype") + else + return check_otf(false,specification,suffix,what) + end +end +readers.opentype=opentypereader +local formats=fonts.formats +formats.otf="opentype" +formats.ttf="truetype" +formats.ttc="truetype" +formats.dfont="truetype" +function readers.otf (specification) return opentypereader(specification,"otf",formats.otf ) end +function readers.ttf (specification) return opentypereader(specification,"ttf",formats.ttf ) end +function readers.ttc (specification) return opentypereader(specification,"ttf",formats.ttc ) end function readers.dfont(specification) return opentypereader(specification,"ttf",formats.dfont) end - --- this will be overloaded - function otf.scriptandlanguage(tfmdata,attr) - local properties = tfmdata.properties - return properties.script or "dflt", properties.language or "dflt" + local properties=tfmdata.properties + return properties.script or "dflt",properties.language or "dflt" end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['font-otb'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['font-otb']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } -local concat = table.concat -local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip -local type, next, tonumber, tostring = type, next, tonumber, tostring -local lpegmatch = lpeg.match -local utfchar = utf.char - -local trace_baseinit = false trackers.register("otf.baseinit", function(v) trace_baseinit = v end) -local trace_singles = false trackers.register("otf.singles", function(v) trace_singles = v end) -local trace_multiples = false trackers.register("otf.multiples", function(v) trace_multiples = v end) -local trace_alternatives = false trackers.register("otf.alternatives", function(v) trace_alternatives = v end) -local trace_ligatures = false trackers.register("otf.ligatures", function(v) trace_ligatures = v end) -local trace_ligatures_detail = false trackers.register("otf.ligatures.detail", function(v) trace_ligatures_detail = v end) -local trace_kerns = false trackers.register("otf.kerns", function(v) trace_kerns = v end) -local trace_preparing = false trackers.register("otf.preparing", function(v) trace_preparing = v end) - -local report_prepare = logs.reporter("fonts","otf prepare") - -local fonts = fonts -local otf = fonts.handlers.otf - -local otffeatures = otf.features -local registerotffeature = otffeatures.register - -otf.defaultbasealternate = "none" -- first last - -local wildcard = "*" -local default = "dflt" - +local concat=table.concat +local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip +local type,next,tonumber,tostring=type,next,tonumber,tostring +local lpegmatch=lpeg.match +local utfchar=utf.char +local trace_baseinit=false trackers.register("otf.baseinit",function(v) trace_baseinit=v end) +local trace_singles=false trackers.register("otf.singles",function(v) trace_singles=v end) +local trace_multiples=false trackers.register("otf.multiples",function(v) trace_multiples=v end) +local trace_alternatives=false trackers.register("otf.alternatives",function(v) trace_alternatives=v end) +local trace_ligatures=false trackers.register("otf.ligatures",function(v) trace_ligatures=v end) +local trace_ligatures_detail=false trackers.register("otf.ligatures.detail",function(v) trace_ligatures_detail=v end) +local trace_kerns=false trackers.register("otf.kerns",function(v) trace_kerns=v end) +local trace_preparing=false trackers.register("otf.preparing",function(v) trace_preparing=v end) +local report_prepare=logs.reporter("fonts","otf prepare") +local fonts=fonts +local otf=fonts.handlers.otf +local otffeatures=otf.features +local registerotffeature=otffeatures.register +otf.defaultbasealternate="none" +local wildcard="*" +local default="dflt" local function gref(descriptions,n) - if type(n) == "number" then - local name = descriptions[n].name - if name then - return format("U+%05X (%s)",n,name) - else - return format("U+%05X") - end - elseif n then - local num, nam = { }, { } - for i=2,#n do -- first is likely a key - local ni = n[i] - num[i-1] = format("U+%05X",ni) - nam[i-1] = descriptions[ni].name or "?" - end - return format("%s (%s)",concat(num," "), concat(nam," ")) + if type(n)=="number" then + local name=descriptions[n].name + if name then + return format("U+%05X (%s)",n,name) else - return "?" + return format("U+%05X") end + elseif n then + local num,nam={},{} + for i=2,#n do + local ni=n[i] + num[i-1]=format("U+%05X",ni) + nam[i-1]=descriptions[ni].name or "?" + end + return format("%s (%s)",concat(num," "),concat(nam," ")) + else + return "?" + end end - local function cref(feature,lookupname) - if lookupname then - return format("feature %s, lookup %s",feature,lookupname) - else - return format("feature %s",feature) - end + if lookupname then + return format("feature %s, lookup %s",feature,lookupname) + else + return format("feature %s",feature) + end end - local function report_alternate(feature,lookupname,descriptions,unicode,replacement,value,comment) - report_prepare("%s: base alternate %s => %s (%s => %s)",cref(feature,lookupname), - gref(descriptions,unicode),replacement and gref(descriptions,replacement) or "-", - tostring(value),comment) + report_prepare("%s: base alternate %s => %s (%s => %s)",cref(feature,lookupname), + gref(descriptions,unicode),replacement and gref(descriptions,replacement) or "-", + tostring(value),comment) end - local function report_substitution(feature,lookupname,descriptions,unicode,substitution) - report_prepare("%s: base substitution %s => %s",cref(feature,lookupname), - gref(descriptions,unicode),gref(descriptions,substitution)) + report_prepare("%s: base substitution %s => %s",cref(feature,lookupname), + gref(descriptions,unicode),gref(descriptions,substitution)) end - local function report_ligature(feature,lookupname,descriptions,unicode,ligature) - report_prepare("%s: base ligature %s => %s",cref(feature,lookupname), - gref(descriptions,ligature),gref(descriptions,unicode)) + report_prepare("%s: base ligature %s => %s",cref(feature,lookupname), + gref(descriptions,ligature),gref(descriptions,unicode)) end - -local basemethods = { } -local basemethod = "" - +local basemethods={} +local basemethod="" local function applybasemethod(what,...) - local m = basemethods[basemethod][what] - if m then - return m(...) - end + local m=basemethods[basemethod][what] + if m then + return m(...) + end end - --- We need to make sure that luatex sees the difference between --- base fonts that have different glyphs in the same slots in fonts --- that have the same fullname (or filename). LuaTeX will merge fonts --- eventually (and subset later on). If needed we can use a more --- verbose name as long as we don't use <()<>[]{}/%> and the length --- is < 128. - -local basehash, basehashes, applied = { }, 1, { } - +local basehash,basehashes,applied={},1,{} local function registerbasehash(tfmdata) - local properties = tfmdata.properties - local hash = concat(applied," ") - local base = basehash[hash] - if not base then - basehashes = basehashes + 1 - base = basehashes - basehash[hash] = base - end - properties.basehash = base - properties.fullname = properties.fullname .. "-" .. base - -- report_prepare("fullname base hash: '%s', featureset '%s'",tfmdata.properties.fullname,hash) - applied = { } + local properties=tfmdata.properties + local hash=concat(applied," ") + local base=basehash[hash] + if not base then + basehashes=basehashes+1 + base=basehashes + basehash[hash]=base + end + properties.basehash=base + properties.fullname=properties.fullname.."-"..base + applied={} end - local function registerbasefeature(feature,value) - applied[#applied+1] = feature .. "=" .. tostring(value) + applied[#applied+1]=feature.."="..tostring(value) end - --- The original basemode ligature builder used the names of components --- and did some expression juggling to get the chain right. The current --- variant starts with unicodes but still uses names to make the chain. --- This is needed because we have to create intermediates when needed --- but use predefined snippets when available. To some extend the --- current builder is more stupid but I don't worry that much about it --- as ligatures are rather predicatable. --- --- Personally I think that an ff + i == ffi rule as used in for instance --- latin modern is pretty weird as no sane person will key that in and --- expect a glyph for that ligature plus the following character. Anyhow, --- as we need to deal with this, we do, but no guarantes are given. --- --- latin modern dejavu --- --- f+f 102 102 102 102 --- f+i 102 105 102 105 --- f+l 102 108 102 108 --- f+f+i 102 102 105 --- f+f+l 102 102 108 102 102 108 --- ff+i 64256 105 64256 105 --- ff+l 64256 108 --- --- As you can see here, latin modern is less complete than dejavu but --- in practice one will not notice it. --- --- The while loop is needed because we need to resolve for instance --- pseudo names like hyphen_hyphen to endash so in practice we end --- up with a bit too many definitions but the overhead is neglectable. --- --- Todo: if changed[first] or changed[second] then ... end - -local trace = false - +local trace=false local function finalize_ligatures(tfmdata,ligatures) - local nofligatures = #ligatures - if nofligatures > 0 then - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local resources = tfmdata.resources - local unicodes = resources.unicodes - local private = resources.private - local alldone = false - while not alldone do - local done = 0 - for i=1,nofligatures do - local ligature = ligatures[i] - if ligature then - local unicode, lookupdata = ligature[1], ligature[2] - if trace then - trace_ligatures_detail("building %q into %q",concat(lookupdata," "),unicode) - end - local size = #lookupdata - local firstcode = lookupdata[1] -- [2] - local firstdata = characters[firstcode] - local okay = false - if firstdata then - local firstname = "ctx_" .. firstcode - for i=1,size-1 do -- for i=2,size-1 do - local firstdata = characters[firstcode] - if not firstdata then - firstcode = private - if trace then - trace_ligatures_detail("defining %q as %q",firstname,firstcode) - end - unicodes[firstname] = firstcode - firstdata = { intermediate = true, ligatures = { } } - characters[firstcode] = firstdata - descriptions[firstcode] = { name = firstname } - private = private + 1 - end - local target - local secondcode = lookupdata[i+1] - local secondname = firstname .. "_" .. secondcode - if i == size - 1 then - target = unicode - if not unicodes[secondname] then - unicodes[secondname] = unicode -- map final ligature onto intermediates - end - okay = true - else - target = unicodes[secondname] - if not target then - break - end - end - if trace then - trace_ligatures_detail("codes (%s,%s) + (%s,%s) -> %s",firstname,firstcode,secondname,secondcode,target) - end - local firstligs = firstdata.ligatures - if firstligs then - firstligs[secondcode] = { char = target } - else - firstdata.ligatures = { [secondcode] = { char = target } } - end - firstcode = target - firstname = secondname - end - end - if okay then - ligatures[i] = false - done = done + 1 - end - end - end - alldone = done == 0 - end - if trace then - for k, v in next, characters do - if v.ligatures then table.print(v,k) end - end - end - tfmdata.resources.private = private - end + local nofligatures=#ligatures + if nofligatures>0 then + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local resources=tfmdata.resources + local unicodes=resources.unicodes + local private=resources.private + local alldone=false + while not alldone do + local done=0 + for i=1,nofligatures do + local ligature=ligatures[i] + if ligature then + local unicode,lookupdata=ligature[1],ligature[2] + if trace then + trace_ligatures_detail("building %q into %q",concat(lookupdata," "),unicode) + end + local size=#lookupdata + local firstcode=lookupdata[1] + local firstdata=characters[firstcode] + local okay=false + if firstdata then + local firstname="ctx_"..firstcode + for i=1,size-1 do + local firstdata=characters[firstcode] + if not firstdata then + firstcode=private + if trace then + trace_ligatures_detail("defining %q as %q",firstname,firstcode) + end + unicodes[firstname]=firstcode + firstdata={ intermediate=true,ligatures={} } + characters[firstcode]=firstdata + descriptions[firstcode]={ name=firstname } + private=private+1 + end + local target + local secondcode=lookupdata[i+1] + local secondname=firstname.."_"..secondcode + if i==size-1 then + target=unicode + if not unicodes[secondname] then + unicodes[secondname]=unicode + end + okay=true + else + target=unicodes[secondname] + if not target then + break + end + end + if trace then + trace_ligatures_detail("codes (%s,%s) + (%s,%s) -> %s",firstname,firstcode,secondname,secondcode,target) + end + local firstligs=firstdata.ligatures + if firstligs then + firstligs[secondcode]={ char=target } + else + firstdata.ligatures={ [secondcode]={ char=target } } + end + firstcode=target + firstname=secondname + end + end + if okay then + ligatures[i]=false + done=done+1 + end + end + end + alldone=done==0 + end + if trace then + for k,v in next,characters do + if v.ligatures then table.print(v,k) end + end + end + tfmdata.resources.private=private + end end - local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist) - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local resources = tfmdata.resources - local changed = tfmdata.changed - local unicodes = resources.unicodes - local lookuphash = resources.lookuphash - local lookuptypes = resources.lookuptypes - - local ligatures = { } - local alternate = tonumber(value) - local defaultalt = otf.defaultbasealternate - - local trace_singles = trace_baseinit and trace_singles - local trace_alternatives = trace_baseinit and trace_alternatives - local trace_ligatures = trace_baseinit and trace_ligatures - - local actions = { - substitution = function(lookupdata,lookupname,description,unicode) - if trace_singles then - report_substitution(feature,lookupname,descriptions,unicode,lookupdata) - end - changed[unicode] = lookupdata - end, - alternate = function(lookupdata,lookupname,description,unicode) - local replacement = lookupdata[alternate] - if replacement then - changed[unicode] = replacement - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal") - end - elseif defaultalt == "first" then - replacement = lookupdata[1] - changed[unicode] = replacement - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) - end - elseif defaultalt == "last" then - replacement = lookupdata[#data] - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) - end - else - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown") - end - end - end, - ligature = function(lookupdata,lookupname,description,unicode) - if trace_ligatures then - report_ligature(feature,lookupname,descriptions,unicode,lookupdata) - end - ligatures[#ligatures+1] = { unicode, lookupdata } - end, - } - - for unicode, character in next, characters do - local description = descriptions[unicode] - local lookups = description.slookups - if lookups then - for l=1,#lookuplist do - local lookupname = lookuplist[l] - local lookupdata = lookups[lookupname] - if lookupdata then - local lookuptype = lookuptypes[lookupname] - local action = actions[lookuptype] - if action then - action(lookupdata,lookupname,description,unicode) - end - end - end + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local resources=tfmdata.resources + local changed=tfmdata.changed + local unicodes=resources.unicodes + local lookuphash=resources.lookuphash + local lookuptypes=resources.lookuptypes + local ligatures={} + local alternate=tonumber(value) + local defaultalt=otf.defaultbasealternate + local trace_singles=trace_baseinit and trace_singles + local trace_alternatives=trace_baseinit and trace_alternatives + local trace_ligatures=trace_baseinit and trace_ligatures + local actions={ + substitution=function(lookupdata,lookupname,description,unicode) + if trace_singles then + report_substitution(feature,lookupname,descriptions,unicode,lookupdata) + end + changed[unicode]=lookupdata + end, + alternate=function(lookupdata,lookupname,description,unicode) + local replacement=lookupdata[alternate] + if replacement then + changed[unicode]=replacement + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal") end - local lookups = description.mlookups - if lookups then - for l=1,#lookuplist do - local lookupname = lookuplist[l] - local lookuplist = lookups[lookupname] - if lookuplist then - local lookuptype = lookuptypes[lookupname] - local action = actions[lookuptype] - if action then - for i=1,#lookuplist do - action(lookuplist[i],lookupname,description,unicode) - end - end - end - end + elseif defaultalt=="first" then + replacement=lookupdata[1] + changed[unicode]=replacement + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) end - end - - finalize_ligatures(tfmdata,ligatures) -end - -local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist) -- todo what kind of kerns, currently all - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local resources = tfmdata.resources - local unicodes = resources.unicodes - local sharedkerns = { } - local traceindeed = trace_baseinit and trace_kerns - for unicode, character in next, characters do - local description = descriptions[unicode] - local rawkerns = description.kerns -- shared - if rawkerns then - local s = sharedkerns[rawkerns] - if s == false then - -- skip - elseif s then - character.kerns = s - else - local newkerns = character.kerns - local done = false - for l=1,#lookuplist do - local lookup = lookuplist[l] - local kerns = rawkerns[lookup] - if kerns then - for otherunicode, value in next, kerns do - if value == 0 then - -- maybe no 0 test here - elseif not newkerns then - newkerns = { [otherunicode] = value } - done = true - if traceindeed then - report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), - gref(descriptions,unicode),gref(descriptions,otherunicode),value) - end - elseif not newkerns[otherunicode] then -- first wins - newkerns[otherunicode] = value - done = true - if traceindeed then - report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), - gref(descriptions,unicode),gref(descriptions,otherunicode),value) - end - end - end - end - end - if done then - sharedkerns[rawkerns] = newkerns - character.kerns = newkerns -- no empty assignments - else - sharedkerns[rawkerns] = false - end - end + elseif defaultalt=="last" then + replacement=lookupdata[#data] + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) + end + else + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown") + end + end + end, + ligature=function(lookupdata,lookupname,description,unicode) + if trace_ligatures then + report_ligature(feature,lookupname,descriptions,unicode,lookupdata) + end + ligatures[#ligatures+1]={ unicode,lookupdata } + end, + } + for unicode,character in next,characters do + local description=descriptions[unicode] + local lookups=description.slookups + if lookups then + for l=1,#lookuplist do + local lookupname=lookuplist[l] + local lookupdata=lookups[lookupname] + if lookupdata then + local lookuptype=lookuptypes[lookupname] + local action=actions[lookuptype] + if action then + action(lookupdata,lookupname,description,unicode) + end + end + end + end + local lookups=description.mlookups + if lookups then + for l=1,#lookuplist do + local lookupname=lookuplist[l] + local lookuplist=lookups[lookupname] + if lookuplist then + local lookuptype=lookuptypes[lookupname] + local action=actions[lookuptype] + if action then + for i=1,#lookuplist do + action(lookuplist[i],lookupname,description,unicode) + end + end + end + end + end + end + finalize_ligatures(tfmdata,ligatures) +end +local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist) + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local resources=tfmdata.resources + local unicodes=resources.unicodes + local sharedkerns={} + local traceindeed=trace_baseinit and trace_kerns + for unicode,character in next,characters do + local description=descriptions[unicode] + local rawkerns=description.kerns + if rawkerns then + local s=sharedkerns[rawkerns] + if s==false then + elseif s then + character.kerns=s + else + local newkerns=character.kerns + local done=false + for l=1,#lookuplist do + local lookup=lookuplist[l] + local kerns=rawkerns[lookup] + if kerns then + for otherunicode,value in next,kerns do + if value==0 then + elseif not newkerns then + newkerns={ [otherunicode]=value } + done=true + if traceindeed then + report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), + gref(descriptions,unicode),gref(descriptions,otherunicode),value) + end + elseif not newkerns[otherunicode] then + newkerns[otherunicode]=value + done=true + if traceindeed then + report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), + gref(descriptions,unicode),gref(descriptions,otherunicode),value) + end + end + end + end + end + if done then + sharedkerns[rawkerns]=newkerns + character.kerns=newkerns + else + sharedkerns[rawkerns]=false end + end end + end end - -basemethods.independent = { - preparesubstitutions = preparesubstitutions, - preparepositionings = preparepositionings, +basemethods.independent={ + preparesubstitutions=preparesubstitutions, + preparepositionings=preparepositionings, } - local function makefake(tfmdata,name,present) - local resources = tfmdata.resources - local private = resources.private - local character = { intermediate = true, ligatures = { } } - resources.unicodes[name] = private - tfmdata.characters[private] = character - tfmdata.descriptions[private] = { name = name } - resources.private = private + 1 - present[name] = private - return character + local resources=tfmdata.resources + local private=resources.private + local character={ intermediate=true,ligatures={} } + resources.unicodes[name]=private + tfmdata.characters[private]=character + tfmdata.descriptions[private]={ name=name } + resources.private=private+1 + present[name]=private + return character end - local function make_1(present,tree,name) - for k, v in next, tree do - if k == "ligature" then - present[name] = v - else - make_1(present,v,name .. "_" .. k) - end + for k,v in next,tree do + if k=="ligature" then + present[name]=v + else + make_1(present,v,name.."_"..k) end + end end - local function make_2(present,tfmdata,characters,tree,name,preceding,unicode,done,lookupname) - for k, v in next, tree do - if k == "ligature" then - local character = characters[preceding] - if not character then - if trace_baseinit then - report_prepare("weird ligature in lookup %s: U+%05X (%s), preceding U+%05X (%s)",lookupname,v,utfchar(v),preceding,utfchar(preceding)) - end - character = makefake(tfmdata,name,present) - end - local ligatures = character.ligatures - if ligatures then - ligatures[unicode] = { char = v } - else - character.ligatures = { [unicode] = { char = v } } - end - if done then - local d = done[lookupname] - if not d then - done[lookupname] = { "dummy", v } - else - d[#d+1] = v - end - end + for k,v in next,tree do + if k=="ligature" then + local character=characters[preceding] + if not character then + if trace_baseinit then + report_prepare("weird ligature in lookup %s: U+%05X (%s), preceding U+%05X (%s)",lookupname,v,utfchar(v),preceding,utfchar(preceding)) + end + character=makefake(tfmdata,name,present) + end + local ligatures=character.ligatures + if ligatures then + ligatures[unicode]={ char=v } + else + character.ligatures={ [unicode]={ char=v } } + end + if done then + local d=done[lookupname] + if not d then + done[lookupname]={ "dummy",v } else - local code = present[name] or unicode - local name = name .. "_" .. k - make_2(present,tfmdata,characters,v,name,code,k,done,lookupname) + d[#d+1]=v end + end + else + local code=present[name] or unicode + local name=name.."_"..k + make_2(present,tfmdata,characters,v,name,code,k,done,lookupname) end + end end - local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist) - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local resources = tfmdata.resources - local changed = tfmdata.changed - local lookuphash = resources.lookuphash - local lookuptypes = resources.lookuptypes - - local ligatures = { } - local alternate = tonumber(value) - local defaultalt = otf.defaultbasealternate - - local trace_singles = trace_baseinit and trace_singles - local trace_alternatives = trace_baseinit and trace_alternatives - local trace_ligatures = trace_baseinit and trace_ligatures - - for l=1,#lookuplist do - local lookupname = lookuplist[l] - local lookupdata = lookuphash[lookupname] - local lookuptype = lookuptypes[lookupname] - for unicode, data in next, lookupdata do - if lookuptype == "substitution" then - if trace_singles then - report_substitution(feature,lookupname,descriptions,unicode,data) - end - changed[unicode] = data - elseif lookuptype == "alternate" then - local replacement = data[alternate] - if replacement then - changed[unicode] = replacement - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal") - end - elseif defaultalt == "first" then - replacement = data[1] - changed[unicode] = replacement - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) - end - elseif defaultalt == "last" then - replacement = data[#data] - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) - end - else - if trace_alternatives then - report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown") - end - end - elseif lookuptype == "ligature" then - ligatures[#ligatures+1] = { unicode, data, lookupname } - if trace_ligatures then - report_ligature(feature,lookupname,descriptions,unicode,data) - end - end - end - end - - local nofligatures = #ligatures - - if nofligatures > 0 then - - local characters = tfmdata.characters - local present = { } - local done = trace_baseinit and trace_ligatures and { } - - for i=1,nofligatures do - local ligature = ligatures[i] - local unicode, tree = ligature[1], ligature[2] - make_1(present,tree,"ctx_"..unicode) - end - - for i=1,nofligatures do - local ligature = ligatures[i] - local unicode, tree, lookupname = ligature[1], ligature[2], ligature[3] - make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,lookupname) - end - - end - + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local resources=tfmdata.resources + local changed=tfmdata.changed + local lookuphash=resources.lookuphash + local lookuptypes=resources.lookuptypes + local ligatures={} + local alternate=tonumber(value) + local defaultalt=otf.defaultbasealternate + local trace_singles=trace_baseinit and trace_singles + local trace_alternatives=trace_baseinit and trace_alternatives + local trace_ligatures=trace_baseinit and trace_ligatures + for l=1,#lookuplist do + local lookupname=lookuplist[l] + local lookupdata=lookuphash[lookupname] + local lookuptype=lookuptypes[lookupname] + for unicode,data in next,lookupdata do + if lookuptype=="substitution" then + if trace_singles then + report_substitution(feature,lookupname,descriptions,unicode,data) + end + changed[unicode]=data + elseif lookuptype=="alternate" then + local replacement=data[alternate] + if replacement then + changed[unicode]=replacement + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal") + end + elseif defaultalt=="first" then + replacement=data[1] + changed[unicode]=replacement + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) + end + elseif defaultalt=="last" then + replacement=data[#data] + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt) + end + else + if trace_alternatives then + report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown") + end + end + elseif lookuptype=="ligature" then + ligatures[#ligatures+1]={ unicode,data,lookupname } + if trace_ligatures then + report_ligature(feature,lookupname,descriptions,unicode,data) + end + end + end + end + local nofligatures=#ligatures + if nofligatures>0 then + local characters=tfmdata.characters + local present={} + local done=trace_baseinit and trace_ligatures and {} + for i=1,nofligatures do + local ligature=ligatures[i] + local unicode,tree=ligature[1],ligature[2] + make_1(present,tree,"ctx_"..unicode) + end + for i=1,nofligatures do + local ligature=ligatures[i] + local unicode,tree,lookupname=ligature[1],ligature[2],ligature[3] + make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,lookupname) + end + end end - local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist) - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local resources = tfmdata.resources - local lookuphash = resources.lookuphash - local traceindeed = trace_baseinit and trace_kerns - - -- check out this sharedkerns trickery - - for l=1,#lookuplist do - local lookupname = lookuplist[l] - local lookupdata = lookuphash[lookupname] - for unicode, data in next, lookupdata do - local character = characters[unicode] - local kerns = character.kerns - if not kerns then - kerns = { } - character.kerns = kerns - end - if traceindeed then - for otherunicode, kern in next, data do - if not kerns[otherunicode] and kern ~= 0 then - kerns[otherunicode] = kern - report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), - gref(descriptions,unicode),gref(descriptions,otherunicode),kern) - end - end - else - for otherunicode, kern in next, data do - if not kerns[otherunicode] and kern ~= 0 then - kerns[otherunicode] = kern - end - end - end - end - end - + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local resources=tfmdata.resources + local lookuphash=resources.lookuphash + local traceindeed=trace_baseinit and trace_kerns + for l=1,#lookuplist do + local lookupname=lookuplist[l] + local lookupdata=lookuphash[lookupname] + for unicode,data in next,lookupdata do + local character=characters[unicode] + local kerns=character.kerns + if not kerns then + kerns={} + character.kerns=kerns + end + if traceindeed then + for otherunicode,kern in next,data do + if not kerns[otherunicode] and kern~=0 then + kerns[otherunicode]=kern + report_prepare("%s: base kern %s + %s => %s",cref(feature,lookup), + gref(descriptions,unicode),gref(descriptions,otherunicode),kern) + end + end + else + for otherunicode,kern in next,data do + if not kerns[otherunicode] and kern~=0 then + kerns[otherunicode]=kern + end + end + end + end + end end - local function initializehashes(tfmdata) - nodeinitializers.features(tfmdata) + nodeinitializers.features(tfmdata) end - -basemethods.shared = { - initializehashes = initializehashes, - preparesubstitutions = preparesubstitutions, - preparepositionings = preparepositionings, +basemethods.shared={ + initializehashes=initializehashes, + preparesubstitutions=preparesubstitutions, + preparepositionings=preparepositionings, } - -basemethod = "independent" - +basemethod="independent" local function featuresinitializer(tfmdata,value) - if true then -- value then - local t = trace_preparing and os.clock() - local features = tfmdata.shared.features - if features then - applybasemethod("initializehashes",tfmdata) - local collectlookups = otf.collectlookups - local rawdata = tfmdata.shared.rawdata - local properties = tfmdata.properties - local script = properties.script - local language = properties.language - local basesubstitutions = rawdata.resources.features.gsub - local basepositionings = rawdata.resources.features.gpos - if basesubstitutions then - for feature, data in next, basesubstitutions do - local value = features[feature] - if value then - local validlookups, lookuplist = collectlookups(rawdata,feature,script,language) - if validlookups then - applybasemethod("preparesubstitutions",tfmdata,feature,value,validlookups,lookuplist) - registerbasefeature(feature,value) - end - end - end - end - if basepositions then - for feature, data in next, basepositions do - local value = features[feature] - if value then - local validlookups, lookuplist = collectlookups(rawdata,feature,script,language) - if validlookups then - applybasemethod("preparepositionings",tfmdata,feature,features[feature],validlookups,lookuplist) - registerbasefeature(feature,value) - end - end - end - end - registerbasehash(tfmdata) - end - if trace_preparing then - report_prepare("preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.properties.fullname or "?") - end - end + if true then + local t=trace_preparing and os.clock() + local features=tfmdata.shared.features + if features then + applybasemethod("initializehashes",tfmdata) + local collectlookups=otf.collectlookups + local rawdata=tfmdata.shared.rawdata + local properties=tfmdata.properties + local script=properties.script + local language=properties.language + local basesubstitutions=rawdata.resources.features.gsub + local basepositionings=rawdata.resources.features.gpos + if basesubstitutions then + for feature,data in next,basesubstitutions do + local value=features[feature] + if value then + local validlookups,lookuplist=collectlookups(rawdata,feature,script,language) + if validlookups then + applybasemethod("preparesubstitutions",tfmdata,feature,value,validlookups,lookuplist) + registerbasefeature(feature,value) + end + end + end + end + if basepositions then + for feature,data in next,basepositions do + local value=features[feature] + if value then + local validlookups,lookuplist=collectlookups(rawdata,feature,script,language) + if validlookups then + applybasemethod("preparepositionings",tfmdata,feature,features[feature],validlookups,lookuplist) + registerbasefeature(feature,value) + end + end + end + end + registerbasehash(tfmdata) + end + if trace_preparing then + report_prepare("preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.properties.fullname or "?") + end + end end - registerotffeature { - name = "features", - description = "features", - default = true, - initializers = { - -- position = 1, -- after setscript (temp hack ... we need to force script / language to 1 - base = featuresinitializer, - } + name="features", + description="features", + default=true, + initializers={ + base=featuresinitializer, + } } - --- independent : collect lookups independently (takes more runtime ... neglectable) --- shared : shares lookups with node mode (takes more memory unless also a node mode variant is used ... noticeable) - -directives.register("fonts.otf.loader.basemethod", function(v) - if basemethods[v] then - basemethod = v - end +directives.register("fonts.otf.loader.basemethod",function(v) + if basemethods[v] then + basemethod=v + end end) end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['node-inj'] = { - version = 1.001, - comment = "companion to node-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files", +if not modules then modules={} end modules ['node-inj']={ + version=1.001, + comment="companion to node-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files", } - --- This is very experimental (this will change when we have luatex > .50 and --- a few pending thingies are available. Also, Idris needs to make a few more --- test fonts. Btw, future versions of luatex will have extended glyph properties --- that can be of help. Some optimizations can go away when we have faster machines. - -local next = next -local utfchar = utf.char - -local trace_injections = false trackers.register("nodes.injections", function(v) trace_injections = v end) - -local report_injections = logs.reporter("nodes","injections") - -local attributes, nodes, node = attributes, nodes, node - -fonts = fonts -local fontdata = fonts.hashes.identifiers - -nodes.injections = nodes.injections or { } -local injections = nodes.injections - -local nodecodes = nodes.nodecodes -local glyph_code = nodecodes.glyph -local nodepool = nodes.pool -local newkern = nodepool.kern - -local traverse_id = node.traverse_id -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after - -local a_kernpair = attributes.private('kernpair') -local a_ligacomp = attributes.private('ligacomp') -local a_markbase = attributes.private('markbase') -local a_markmark = attributes.private('markmark') -local a_markdone = attributes.private('markdone') -local a_cursbase = attributes.private('cursbase') -local a_curscurs = attributes.private('curscurs') -local a_cursdone = attributes.private('cursdone') - --- This injector has been tested by Idris Samawi Hamid (several arabic fonts as well as --- the rather demanding Husayni font), Khaled Hosny (latin and arabic) and Kaj Eigner --- (arabic, hebrew and thai) and myself (whatever font I come across). I'm pretty sure --- that this code is not 100% okay but examples are needed to figure things out. - +local next=next +local utfchar=utf.char +local trace_injections=false trackers.register("nodes.injections",function(v) trace_injections=v end) +local report_injections=logs.reporter("nodes","injections") +local attributes,nodes,node=attributes,nodes,node +fonts=fonts +local fontdata=fonts.hashes.identifiers +nodes.injections=nodes.injections or {} +local injections=nodes.injections +local nodecodes=nodes.nodecodes +local glyph_code=nodecodes.glyph +local nodepool=nodes.pool +local newkern=nodepool.kern +local traverse_id=node.traverse_id +local insert_node_before=node.insert_before +local insert_node_after=node.insert_after +local a_kernpair=attributes.private('kernpair') +local a_ligacomp=attributes.private('ligacomp') +local a_markbase=attributes.private('markbase') +local a_markmark=attributes.private('markmark') +local a_markdone=attributes.private('markdone') +local a_cursbase=attributes.private('cursbase') +local a_curscurs=attributes.private('curscurs') +local a_cursdone=attributes.private('cursdone') function injections.installnewkern(nk) - newkern = nk or newkern + newkern=nk or newkern end - -local cursives = { } -local marks = { } -local kerns = { } - --- Currently we do gpos/kern in a bit inofficial way but when we have the extra fields in --- glyphnodes to manipulate ht/dp/wd explicitly I will provide an alternative; also, we --- can share tables. - --- For the moment we pass the r2l key ... volt/arabtype tests .. idris: this needs --- checking with husayni (volt and fontforge). - +local cursives={} +local marks={} +local kerns={} function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext) - local dx, dy = factor*(exit[1]-entry[1]), factor*(exit[2]-entry[2]) - local ws, wn = tfmstart.width, tfmnext.width - local bound = #cursives + 1 - start[a_cursbase] = bound - nxt[a_curscurs] = bound - cursives[bound] = { rlmode, dx, dy, ws, wn } - return dx, dy, bound + local dx,dy=factor*(exit[1]-entry[1]),factor*(exit[2]-entry[2]) + local ws,wn=tfmstart.width,tfmnext.width + local bound=#cursives+1 + start[a_cursbase]=bound + nxt[a_curscurs]=bound + cursives[bound]={ rlmode,dx,dy,ws,wn } + return dx,dy,bound end - function injections.setpair(current,factor,rlmode,r2lflag,spec,tfmchr) - local x, y, w, h = factor*spec[1], factor*spec[2], factor*spec[3], factor*spec[4] - -- dy = y - h - if x ~= 0 or w ~= 0 or y ~= 0 or h ~= 0 then - local bound = current[a_kernpair] - if bound then - local kb = kerns[bound] - -- inefficient but singles have less, but weird anyway, needs checking - kb[2], kb[3], kb[4], kb[5] = (kb[2] or 0) + x, (kb[3] or 0) + y, (kb[4] or 0)+ w, (kb[5] or 0) + h - else - bound = #kerns + 1 - current[a_kernpair] = bound - kerns[bound] = { rlmode, x, y, w, h, r2lflag, tfmchr.width } - end - return x, y, w, h, bound + local x,y,w,h=factor*spec[1],factor*spec[2],factor*spec[3],factor*spec[4] + if x~=0 or w~=0 or y~=0 or h~=0 then + local bound=current[a_kernpair] + if bound then + local kb=kerns[bound] + kb[2],kb[3],kb[4],kb[5]=(kb[2] or 0)+x,(kb[3] or 0)+y,(kb[4] or 0)+w,(kb[5] or 0)+h + else + bound=#kerns+1 + current[a_kernpair]=bound + kerns[bound]={ rlmode,x,y,w,h,r2lflag,tfmchr.width } end - return x, y, w, h -- no bound + return x,y,w,h,bound + end + return x,y,w,h end - function injections.setkern(current,factor,rlmode,x,tfmchr) - local dx = factor*x - if dx ~= 0 then - local bound = #kerns + 1 - current[a_kernpair] = bound - kerns[bound] = { rlmode, dx } - return dx, bound + local dx=factor*x + if dx~=0 then + local bound=#kerns+1 + current[a_kernpair]=bound + kerns[bound]={ rlmode,dx } + return dx,bound + else + return 0,0 + end +end +function injections.setmark(start,base,factor,rlmode,ba,ma,index) + local dx,dy=factor*(ba[1]-ma[1]),factor*(ba[2]-ma[2]) + local bound=base[a_markbase] +local index=1 + if bound then + local mb=marks[bound] + if mb then +index=#mb+1 + mb[index]={ dx,dy,rlmode } + start[a_markmark]=bound + start[a_markdone]=index + return dx,dy,bound else - return 0, 0 - end -end - -function injections.setmark(start,base,factor,rlmode,ba,ma,index) -- ba=baseanchor, ma=markanchor - local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2]) -- the index argument is no longer used but when this - local bound = base[a_markbase] -- fails again we should pass it -local index = 1 - if bound then - local mb = marks[bound] - if mb then - -- if not index then index = #mb + 1 end -index = #mb + 1 - mb[index] = { dx, dy, rlmode } - start[a_markmark] = bound - start[a_markdone] = index - return dx, dy, bound - else - report_injections("possible problem, U+%05X is base mark without data (id: %s)",base.char,bound) - end + report_injections("possible problem, U+%05X is base mark without data (id: %s)",base.char,bound) end --- index = index or 1 - index = index or 1 - bound = #marks + 1 - base[a_markbase] = bound - start[a_markmark] = bound - start[a_markdone] = index - marks[bound] = { [index] = { dx, dy, rlmode } } - return dx, dy, bound + end + index=index or 1 + bound=#marks+1 + base[a_markbase]=bound + start[a_markmark]=bound + start[a_markdone]=index + marks[bound]={ [index]={ dx,dy,rlmode } } + return dx,dy,bound end - local function dir(n) - return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset" + return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset" end - local function trace(head) - report_injections("begin run") - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - local kp = n[a_kernpair] - local mb = n[a_markbase] - local mm = n[a_markmark] - local md = n[a_markdone] - local cb = n[a_cursbase] - local cc = n[a_curscurs] - local char = n.char - report_injections("char U+%05X, font %s, glyph %s",char,n.font,utfchar(char)) - if kp then - local k = kerns[kp] - if k[3] then - report_injections(" pairkern: dir=%s, x=%s, y=%s, w=%s, h=%s",dir(k[1]),k[2] or "?",k[3] or "?",k[4] or "?",k[5] or "?") - else - report_injections(" kern: dir=%s, dx=%s",dir(k[1]),k[2] or "?") - end - end - if mb then - report_injections(" markbase: bound=%s",mb) - end - if mm then - local m = marks[mm] - if mb then - local m = m[mb] - if m then - report_injections(" markmark: bound=%s, index=%s, dx=%s, dy=%s",mm,md or "?",m[1] or "?",m[2] or "?") - else - report_injections(" markmark: bound=%s, missing index",mm) - end - else - m = m[1] - report_injections(" markmark: bound=%s, dx=%s, dy=%s",mm,m and m[1] or "?",m and m[2] or "?") - end - end - if cb then - report_injections(" cursbase: bound=%s",cb) - end - if cc then - local c = cursives[cc] - report_injections(" curscurs: bound=%s, dir=%s, dx=%s, dy=%s",cc,dir(c[1]),c[2] or "?",c[3] or "?") - end + report_injections("begin run") + for n in traverse_id(glyph_code,head) do + if n.subtype<256 then + local kp=n[a_kernpair] + local mb=n[a_markbase] + local mm=n[a_markmark] + local md=n[a_markdone] + local cb=n[a_cursbase] + local cc=n[a_curscurs] + local char=n.char + report_injections("char U+%05X, font %s, glyph %s",char,n.font,utfchar(char)) + if kp then + local k=kerns[kp] + if k[3] then + report_injections(" pairkern: dir=%s, x=%s, y=%s, w=%s, h=%s",dir(k[1]),k[2] or "?",k[3] or "?",k[4] or "?",k[5] or "?") + else + report_injections(" kern: dir=%s, dx=%s",dir(k[1]),k[2] or "?") + end + end + if mb then + report_injections(" markbase: bound=%s",mb) + end + if mm then + local m=marks[mm] + if mb then + local m=m[mb] + if m then + report_injections(" markmark: bound=%s, index=%s, dx=%s, dy=%s",mm,md or "?",m[1] or "?",m[2] or "?") + else + report_injections(" markmark: bound=%s, missing index",mm) + end + else + m=m[1] + report_injections(" markmark: bound=%s, dx=%s, dy=%s",mm,m and m[1] or "?",m and m[2] or "?") end + end + if cb then + report_injections(" cursbase: bound=%s",cb) + end + if cc then + local c=cursives[cc] + report_injections(" curscurs: bound=%s, dir=%s, dx=%s, dy=%s",cc,dir(c[1]),c[2] or "?",c[3] or "?") + end end - report_injections("end run") + end + report_injections("end run") end - --- todo: reuse tables (i.e. no collection), but will be extra fields anyway --- todo: check for attribute - --- We can have a fast test on a font being processed, so we can check faster for marks etc --- but I'll make a context variant anyway. - function injections.handler(head,where,keep) - local has_marks, has_cursives, has_kerns = next(marks), next(cursives), next(kerns) - if has_marks or has_cursives then - if trace_injections then - trace(head) - end - -- in the future variant we will not copy items but refs to tables - local done, ky, rl, valid, cx, wx, mk, nofvalid = false, { }, { }, { }, { }, { }, { }, 0 - if has_kerns then -- move outside loop - local nf, tm = nil, nil - for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts - if n.subtype < 256 then - nofvalid = nofvalid + 1 - valid[nofvalid] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].resources.marks - end - if tm then - mk[n] = tm[n.char] - end - local k = n[a_kernpair] + local has_marks,has_cursives,has_kerns=next(marks),next(cursives),next(kerns) + if has_marks or has_cursives then + if trace_injections then + trace(head) + end + local done,ky,rl,valid,cx,wx,mk,nofvalid=false,{},{},{},{},{},{},0 + if has_kerns then + local nf,tm=nil,nil + for n in traverse_id(glyph_code,head) do + if n.subtype<256 then + nofvalid=nofvalid+1 + valid[nofvalid]=n + if n.font~=nf then + nf=n.font + tm=fontdata[nf].resources.marks + end + if tm then + mk[n]=tm[n.char] + end + local k=n[a_kernpair] + if k then + local kk=kerns[k] + if kk then + local x,y,w,h=kk[2] or 0,kk[3] or 0,kk[4] or 0,kk[5] or 0 + local dy=y-h + if dy~=0 then + ky[n]=dy + end + if w~=0 or x~=0 then + wx[n]=kk + end + rl[n]=kk[1] + end + end + end + end + else + local nf,tm=nil,nil + for n in traverse_id(glyph_code,head) do + if n.subtype<256 then + nofvalid=nofvalid+1 + valid[nofvalid]=n + if n.font~=nf then + nf=n.font + tm=fontdata[nf].resources.marks + end + if tm then + mk[n]=tm[n.char] + end + end + end + end + if nofvalid>0 then + local cx={} + if has_kerns and next(ky) then + for n,k in next,ky do + n.yoffset=k + end + end + if has_cursives then + local p_cursbase,p=nil,nil + local t,d,maxt={},{},0 + for i=1,nofvalid do + local n=valid[i] + if not mk[n] then + local n_cursbase=n[a_cursbase] + if p_cursbase then + local n_curscurs=n[a_curscurs] + if p_cursbase==n_curscurs then + local c=cursives[n_curscurs] + if c then + local rlmode,dx,dy,ws,wn=c[1],c[2],c[3],c[4],c[5] + if rlmode>=0 then + dx=dx-ws + else + dx=dx+wn + end + if dx~=0 then + cx[n]=dx + rl[n]=rlmode + end + dy=-dy + maxt=maxt+1 + t[maxt]=p + d[maxt]=dy + else + maxt=0 + end + end + elseif maxt>0 then + local ny=n.yoffset + for i=maxt,1,-1 do + ny=ny+d[i] + local ti=t[i] + ti.yoffset=ti.yoffset+ny + end + maxt=0 + end + if not n_cursbase and maxt>0 then + local ny=n.yoffset + for i=maxt,1,-1 do + ny=ny+d[i] + local ti=t[i] + ti.yoffset=ny + end + maxt=0 + end + p_cursbase,p=n_cursbase,n + end + end + if maxt>0 then + local ny=n.yoffset + for i=maxt,1,-1 do + ny=ny+d[i] + local ti=t[i] + ti.yoffset=ny + end + maxt=0 + end + if not keep then + cursives={} + end + end + if has_marks then + for i=1,nofvalid do + local p=valid[i] + local p_markbase=p[a_markbase] + if p_markbase then + local mrks=marks[p_markbase] + local nofmarks=#mrks + for n in traverse_id(glyph_code,p.next) do + local n_markmark=n[a_markmark] + if p_markbase==n_markmark then + local index=n[a_markdone] or 1 + local d=mrks[index] + if d then + local rlmode=d[3] + if rlmode and rlmode>=0 then + local k=wx[p] if k then - local kk = kerns[k] - if kk then - local x, y, w, h = kk[2] or 0, kk[3] or 0, kk[4] or 0, kk[5] or 0 - local dy = y - h - if dy ~= 0 then - ky[n] = dy - end - if w ~= 0 or x ~= 0 then - wx[n] = kk - end - rl[n] = kk[1] -- could move in test - end - end - end - end - else - local nf, tm = nil, nil - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - nofvalid = nofvalid + 1 - valid[nofvalid] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].resources.marks - end - if tm then - mk[n] = tm[n.char] + n.xoffset=p.xoffset-p.width+d[1]-k[2] + else + n.xoffset=p.xoffset-p.width+d[1] end + else + local k=wx[p] + if k then + n.xoffset=p.xoffset-d[1]-k[2] + else + n.xoffset=p.xoffset-d[1] + end + end + if mk[p] then + n.yoffset=p.yoffset+d[2] + else + n.yoffset=n.yoffset+p.yoffset+d[2] + end + if nofmarks==1 then + break + else + nofmarks=nofmarks-1 + end end + else + end end + end end - if nofvalid > 0 then - -- we can assume done == true because we have cursives and marks - local cx = { } - if has_kerns and next(ky) then - for n, k in next, ky do - n.yoffset = k - end - end - -- todo: reuse t and use maxt - if has_cursives then - local p_cursbase, p = nil, nil - -- since we need valid[n+1] we can also use a "while true do" - local t, d, maxt = { }, { }, 0 - for i=1,nofvalid do -- valid == glyphs - local n = valid[i] - if not mk[n] then - local n_cursbase = n[a_cursbase] - if p_cursbase then - local n_curscurs = n[a_curscurs] - if p_cursbase == n_curscurs then - local c = cursives[n_curscurs] - if c then - local rlmode, dx, dy, ws, wn = c[1], c[2], c[3], c[4], c[5] - if rlmode >= 0 then - dx = dx - ws - else - dx = dx + wn - end - if dx ~= 0 then - cx[n] = dx - rl[n] = rlmode - end - -- if rlmode and rlmode < 0 then - dy = -dy - -- end - maxt = maxt + 1 - t[maxt] = p - d[maxt] = dy - else - maxt = 0 - end - end - elseif maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ti.yoffset + ny - end - maxt = 0 - end - if not n_cursbase and maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ny - end - maxt = 0 - end - p_cursbase, p = n_cursbase, n - end - end - if maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ny - end - maxt = 0 - end - if not keep then - cursives = { } - end - end - if has_marks then - for i=1,nofvalid do - local p = valid[i] - local p_markbase = p[a_markbase] - if p_markbase then - local mrks = marks[p_markbase] - local nofmarks = #mrks - for n in traverse_id(glyph_code,p.next) do - local n_markmark = n[a_markmark] - if p_markbase == n_markmark then - local index = n[a_markdone] or 1 - local d = mrks[index] - if d then - local rlmode = d[3] - if rlmode and rlmode >= 0 then - -- new per 2010-10-06, width adapted per 2010-02-03 - -- we used to negate the width of marks because in tfm - -- that makes sense but we no longer do that so as a - -- consequence the sign of p.width was changed - local k = wx[p] - if k then - -- brill roman: A\char"0300 (but ugly anyway) - n.xoffset = p.xoffset - p.width + d[1] - k[2] -- was + p.width - else - -- lucida: U\char"032F (default+mark) - n.xoffset = p.xoffset - p.width + d[1] -- 01-05-2011 - end - else - local k = wx[p] - if k then - n.xoffset = p.xoffset - d[1] - k[2] - else - n.xoffset = p.xoffset - d[1] - end - end - if mk[p] then - n.yoffset = p.yoffset + d[2] - else - n.yoffset = n.yoffset + p.yoffset + d[2] - end - if nofmarks == 1 then - break - else - nofmarks = nofmarks - 1 - end - end - else - -- KE: there can be sequences in ligatures - end - end - end - end - if not keep then - marks = { } - end - end - -- todo : combine - if next(wx) then - for n, k in next, wx do - -- only w can be nil (kernclasses), can be sped up when w == nil - local x, w = k[2] or 0, k[4] - if w then - local rl = k[1] -- r2l = k[6] - local wx = w - x - if rl < 0 then -- KE: don't use r2l here - if wx ~= 0 then - insert_node_before(head,n,newkern(wx)) - end - if x ~= 0 then - insert_node_after (head,n,newkern(x)) - end - else - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - if wx ~= 0 then - insert_node_after(head,n,newkern(wx)) - end - end - elseif x ~= 0 then - -- this needs checking for rl < 0 but it is unlikely that a r2l script - -- uses kernclasses between glyphs so we're probably safe (KE has a - -- problematic font where marks interfere with rl < 0 in the previous - -- case) - insert_node_before(head,n,newkern(x)) - end - end - end - if next(cx) then - for n, k in next, cx do - if k ~= 0 then - local rln = rl[n] - if rln and rln < 0 then - insert_node_before(head,n,newkern(-k)) - else - insert_node_before(head,n,newkern(k)) - end - end - end - end - if not keep then - kerns = { } - end - return head, true - elseif not keep then - kerns, cursives, marks = { }, { }, { } - end - elseif has_kerns then - if trace_injections then - trace(head) - end - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - local k = n[a_kernpair] - if k then - local kk = kerns[k] - if kk then - local rl, x, y, w = kk[1], kk[2] or 0, kk[3], kk[4] - if y and y ~= 0 then - n.yoffset = y -- todo: h ? - end - if w then - -- copied from above - -- local r2l = kk[6] - local wx = w - x - if rl < 0 then -- KE: don't use r2l here - if wx ~= 0 then - insert_node_before(head,n,newkern(wx)) - end - if x ~= 0 then - insert_node_after (head,n,newkern(x)) - end - else - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - if wx ~= 0 then - insert_node_after(head,n,newkern(wx)) - end - end - else - -- simple (e.g. kernclass kerns) - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - end - end - end + if not keep then + marks={} + end + end + if next(wx) then + for n,k in next,wx do + local x,w=k[2] or 0,k[4] + if w then + local rl=k[1] + local wx=w-x + if rl<0 then + if wx~=0 then + insert_node_before(head,n,newkern(wx)) + end + if x~=0 then + insert_node_after (head,n,newkern(x)) + end + else + if x~=0 then + insert_node_before(head,n,newkern(x)) + end + if wx~=0 then + insert_node_after(head,n,newkern(wx)) + end + end + elseif x~=0 then + insert_node_before(head,n,newkern(x)) + end + end + end + if next(cx) then + for n,k in next,cx do + if k~=0 then + local rln=rl[n] + if rln and rln<0 then + insert_node_before(head,n,newkern(-k)) + else + insert_node_before(head,n,newkern(k)) end + end end - if not keep then - kerns = { } + end + if not keep then + kerns={} + end + return head,true + elseif not keep then + kerns,cursives,marks={},{},{} + end + elseif has_kerns then + if trace_injections then + trace(head) + end + for n in traverse_id(glyph_code,head) do + if n.subtype<256 then + local k=n[a_kernpair] + if k then + local kk=kerns[k] + if kk then + local rl,x,y,w=kk[1],kk[2] or 0,kk[3],kk[4] + if y and y~=0 then + n.yoffset=y + end + if w then + local wx=w-x + if rl<0 then + if wx~=0 then + insert_node_before(head,n,newkern(wx)) + end + if x~=0 then + insert_node_after (head,n,newkern(x)) + end + else + if x~=0 then + insert_node_before(head,n,newkern(x)) + end + if wx~=0 then + insert_node_after(head,n,newkern(wx)) + end + end + else + if x~=0 then + insert_node_before(head,n,newkern(x)) + end + end + end end - return head, true - else - -- no tracing needed + end + end + if not keep then + kerns={} end - return head, false + return head,true + else + end + return head,false end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['font-ota'] = { - version = 1.001, - comment = "companion to font-otf.lua (analysing)", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['font-ota']={ + version=1.001, + comment="companion to font-otf.lua (analysing)", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - --- this might become scrp-*.lua - -local type = type - -if not trackers then trackers = { register = function() end } end - -local trace_analyzing = false trackers.register("otf.analyzing", function(v) trace_analyzing = v end) - -local fonts, nodes, node = fonts, nodes, node - -local allocate = utilities.storage.allocate - -local otf = fonts.handlers.otf - -local analyzers = fonts.analyzers -local initializers = allocate() -local methods = allocate() - -analyzers.initializers = initializers -analyzers.methods = methods -analyzers.useunicodemarks = false - -local a_state = attributes.private('state') - -local nodecodes = nodes.nodecodes -local glyph_code = nodecodes.glyph - -local traverse_id = node.traverse_id -local traverse_node_list = node.traverse - -local fontdata = fonts.hashes.identifiers -local categories = characters and characters.categories or { } -- sorry, only in context - -local otffeatures = fonts.constructors.newfeatures("otf") -local registerotffeature = otffeatures.register - ---[[ldx-- -

Analyzers run per script and/or language and are needed in order to -process features right.

---ldx]]-- - --- never use these numbers directly - -local s_init = 1 local s_rphf = 7 -local s_medi = 2 local s_half = 8 -local s_fina = 3 local s_pref = 9 -local s_isol = 4 local s_blwf = 10 -local s_mark = 5 local s_pstf = 11 -local s_rest = 6 - -local states = { - init = s_init, - medi = s_medi, - fina = s_fina, - isol = s_isol, - mark = s_mark, - rest = s_rest, - rphf = s_rphf, - half = s_half, - pref = s_pref, - blwf = s_blwf, - pstf = s_pstf, +local type=type +if not trackers then trackers={ register=function() end } end +local trace_analyzing=false trackers.register("otf.analyzing",function(v) trace_analyzing=v end) +local fonts,nodes,node=fonts,nodes,node +local allocate=utilities.storage.allocate +local otf=fonts.handlers.otf +local analyzers=fonts.analyzers +local initializers=allocate() +local methods=allocate() +analyzers.initializers=initializers +analyzers.methods=methods +analyzers.useunicodemarks=false +local a_state=attributes.private('state') +local nodecodes=nodes.nodecodes +local glyph_code=nodecodes.glyph +local math_code=nodecodes.math +local traverse_id=node.traverse_id +local traverse_node_list=node.traverse +local endofmath=nodes.endofmath +local fontdata=fonts.hashes.identifiers +local categories=characters and characters.categories or {} +local otffeatures=fonts.constructors.newfeatures("otf") +local registerotffeature=otffeatures.register +local s_init=1 local s_rphf=7 +local s_medi=2 local s_half=8 +local s_fina=3 local s_pref=9 +local s_isol=4 local s_blwf=10 +local s_mark=5 local s_pstf=11 +local s_rest=6 +local states={ + init=s_init, + medi=s_medi, + fina=s_fina, + isol=s_isol, + mark=s_mark, + rest=s_rest, + rphf=s_rphf, + half=s_half, + pref=s_pref, + blwf=s_blwf, + pstf=s_pstf, } - -local features = { - init = s_init, - medi = s_medi, - fina = s_fina, - isol = s_isol, - -- mark = s_mark, +local features={ + init=s_init, + medi=s_medi, + fina=s_fina, + isol=s_isol, } - -analyzers.states = states -analyzers.features = features - --- todo: analyzers per script/lang, cross font, so we need an font id hash -> script --- e.g. latin -> hyphenate, arab -> 1/2/3 analyze -- its own namespace - +analyzers.states=states +analyzers.features=features function analyzers.setstate(head,font) - local useunicodemarks = analyzers.useunicodemarks - local tfmdata = fontdata[font] - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local first, last, current, n, done = nil, nil, head, 0, false -- maybe make n boolean - while current do - local id = current.id - if id == glyph_code and current.font == font then - local char = current.char - local d = descriptions[char] - if d then - if d.class == "mark" or (useunicodemarks and categories[char] == "mn") then - done = true - current[a_state] = s_mark - elseif n == 0 then - first, last, n = current, current, 1 - current[a_state] = s_init - else - last, n = current, n+1 - current[a_state] = s_medi - end - else -- finish - if first and first == last then - last[a_state] = s_isol - elseif last then - last[a_state] = s_fina - end - first, last, n = nil, nil, 0 - end - elseif id == disc_code then - -- always in the middle - current[a_state] = s_midi - last = current - else -- finish - if first and first == last then - last[a_state] = s_isol - elseif last then - last[a_state] = s_fina - end - first, last, n = nil, nil, 0 - end - current = current.next - end - if first and first == last then - last[a_state] = s_isol - elseif last then - last[a_state] = s_fina - end - return head, done -end - --- in the future we will use language/script attributes instead of the --- font related value, but then we also need dynamic features which is --- somewhat slower; and .. we need a chain of them - -local function analyzeinitializer(tfmdata,value) -- attr - local script, language = otf.scriptandlanguage(tfmdata) -- attr - local action = initializers[script] - if not action then - -- skip - elseif type(action) == "function" then - return action(tfmdata,value) - else - local action = action[language] - if action then - return action(tfmdata,value) - end - end + local useunicodemarks=analyzers.useunicodemarks + local tfmdata=fontdata[font] + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + local first,last,current,n,done=nil,nil,head,0,false + while current do + local id=current.id + if id==glyph_code and current.font==font then + local char=current.char + local d=descriptions[char] + if d then + if d.class=="mark" or (useunicodemarks and categories[char]=="mn") then + done=true + current[a_state]=s_mark + elseif n==0 then + first,last,n=current,current,1 + current[a_state]=s_init + else + last,n=current,n+1 + current[a_state]=s_medi + end + else + if first and first==last then + last[a_state]=s_isol + elseif last then + last[a_state]=s_fina + end + first,last,n=nil,nil,0 + end + elseif id==disc_code then + current[a_state]=s_midi + last=current + else + if first and first==last then + last[a_state]=s_isol + elseif last then + last[a_state]=s_fina + end + first,last,n=nil,nil,0 + end + current=current.next + end + if first and first==last then + last[a_state]=s_isol + elseif last then + last[a_state]=s_fina + end + return head,done +end +local function analyzeinitializer(tfmdata,value) + local script,language=otf.scriptandlanguage(tfmdata) + local action=initializers[script] + if not action then + elseif type(action)=="function" then + return action(tfmdata,value) + else + local action=action[language] + if action then + return action(tfmdata,value) + end + end end - local function analyzeprocessor(head,font,attr) - local tfmdata = fontdata[font] - local script, language = otf.scriptandlanguage(tfmdata,attr) - local action = methods[script] - if not action then - -- skip - elseif type(action) == "function" then - return action(head,font,attr) - else - action = action[language] - if action then - return action(head,font,attr) - end - end - return head, false + local tfmdata=fontdata[font] + local script,language=otf.scriptandlanguage(tfmdata,attr) + local action=methods[script] + if not action then + elseif type(action)=="function" then + return action(head,font,attr) + else + action=action[language] + if action then + return action(head,font,attr) + end + end + return head,false end - registerotffeature { - name = "analyze", - description = "analysis of (for instance) character classes", - default = true, - initializers = { - node = analyzeinitializer, - }, - processors = { - position = 1, - node = analyzeprocessor, - } + name="analyze", + description="analysis of (for instance) character classes", + default=true, + initializers={ + node=analyzeinitializer, + }, + processors={ + position=1, + node=analyzeprocessor, + } } - --- latin - -methods.latn = analyzers.setstate - --- this info eventually will go into char-def and we will have a state --- table for generic then - -local zwnj = 0x200C -local zwj = 0x200D - -local isol = { - [0x0600] = true, [0x0601] = true, [0x0602] = true, [0x0603] = true, - [0x0608] = true, [0x060B] = true, [0x0621] = true, [0x0674] = true, - [0x06DD] = true, [zwnj] = true, +methods.latn=analyzers.setstate +local zwnj=0x200C +local zwj=0x200D +local isol={ + [0x0600]=true,[0x0601]=true,[0x0602]=true,[0x0603]=true, + [0x0608]=true,[0x060B]=true,[0x0621]=true,[0x0674]=true, + [0x06DD]=true,[zwnj]=true, } - -local isol_fina = { - [0x0622] = true, [0x0623] = true, [0x0624] = true, [0x0625] = true, - [0x0627] = true, [0x0629] = true, [0x062F] = true, [0x0630] = true, - [0x0631] = true, [0x0632] = true, [0x0648] = true, [0x0671] = true, - [0x0672] = true, [0x0673] = true, [0x0675] = true, [0x0676] = true, - [0x0677] = true, [0x0688] = true, [0x0689] = true, [0x068A] = true, - [0x068B] = true, [0x068C] = true, [0x068D] = true, [0x068E] = true, - [0x068F] = true, [0x0690] = true, [0x0691] = true, [0x0692] = true, - [0x0693] = true, [0x0694] = true, [0x0695] = true, [0x0696] = true, - [0x0697] = true, [0x0698] = true, [0x0699] = true, [0x06C0] = true, - [0x06C3] = true, [0x06C4] = true, [0x06C5] = true, [0x06C6] = true, - [0x06C7] = true, [0x06C8] = true, [0x06C9] = true, [0x06CA] = true, - [0x06CB] = true, [0x06CD] = true, [0x06CF] = true, [0x06D2] = true, - [0x06D3] = true, [0x06D5] = true, [0x06EE] = true, [0x06EF] = true, - [0x0759] = true, [0x075A] = true, [0x075B] = true, [0x076B] = true, - [0x076C] = true, [0x0771] = true, [0x0773] = true, [0x0774] = true, - [0x0778] = true, [0x0779] = true, [0xFEF5] = true, [0xFEF7] = true, - [0xFEF9] = true, [0xFEFB] = true, - - -- syriac - - [0x0710] = true, [0x0715] = true, [0x0716] = true, [0x0717] = true, - [0x0718] = true, [0x0719] = true, [0x0728] = true, [0x072A] = true, - [0x072C] = true, [0x071E] = true, +local isol_fina={ + [0x0622]=true,[0x0623]=true,[0x0624]=true,[0x0625]=true, + [0x0627]=true,[0x0629]=true,[0x062F]=true,[0x0630]=true, + [0x0631]=true,[0x0632]=true,[0x0648]=true,[0x0671]=true, + [0x0672]=true,[0x0673]=true,[0x0675]=true,[0x0676]=true, + [0x0677]=true,[0x0688]=true,[0x0689]=true,[0x068A]=true, + [0x068B]=true,[0x068C]=true,[0x068D]=true,[0x068E]=true, + [0x068F]=true,[0x0690]=true,[0x0691]=true,[0x0692]=true, + [0x0693]=true,[0x0694]=true,[0x0695]=true,[0x0696]=true, + [0x0697]=true,[0x0698]=true,[0x0699]=true,[0x06C0]=true, + [0x06C3]=true,[0x06C4]=true,[0x06C5]=true,[0x06C6]=true, + [0x06C7]=true,[0x06C8]=true,[0x06C9]=true,[0x06CA]=true, + [0x06CB]=true,[0x06CD]=true,[0x06CF]=true,[0x06D2]=true, + [0x06D3]=true,[0x06D5]=true,[0x06EE]=true,[0x06EF]=true, + [0x0759]=true,[0x075A]=true,[0x075B]=true,[0x076B]=true, + [0x076C]=true,[0x0771]=true,[0x0773]=true,[0x0774]=true, + [0x0778]=true,[0x0779]=true,[0xFEF5]=true,[0xFEF7]=true, + [0xFEF9]=true,[0xFEFB]=true, + [0x0710]=true,[0x0715]=true,[0x0716]=true,[0x0717]=true, + [0x0718]=true,[0x0719]=true,[0x0728]=true,[0x072A]=true, + [0x072C]=true,[0x071E]=true, } - -local isol_fina_medi_init = { - [0x0626] = true, [0x0628] = true, [0x062A] = true, [0x062B] = true, - [0x062C] = true, [0x062D] = true, [0x062E] = true, [0x0633] = true, - [0x0634] = true, [0x0635] = true, [0x0636] = true, [0x0637] = true, - [0x0638] = true, [0x0639] = true, [0x063A] = true, [0x063B] = true, - [0x063C] = true, [0x063D] = true, [0x063E] = true, [0x063F] = true, - [0x0640] = true, [0x0641] = true, [0x0642] = true, [0x0643] = true, - [0x0644] = true, [0x0645] = true, [0x0646] = true, [0x0647] = true, - [0x0649] = true, [0x064A] = true, [0x066E] = true, [0x066F] = true, - [0x0678] = true, [0x0679] = true, [0x067A] = true, [0x067B] = true, - [0x067C] = true, [0x067D] = true, [0x067E] = true, [0x067F] = true, - [0x0680] = true, [0x0681] = true, [0x0682] = true, [0x0683] = true, - [0x0684] = true, [0x0685] = true, [0x0686] = true, [0x0687] = true, - [0x069A] = true, [0x069B] = true, [0x069C] = true, [0x069D] = true, - [0x069E] = true, [0x069F] = true, [0x06A0] = true, [0x06A1] = true, - [0x06A2] = true, [0x06A3] = true, [0x06A4] = true, [0x06A5] = true, - [0x06A6] = true, [0x06A7] = true, [0x06A8] = true, [0x06A9] = true, - [0x06AA] = true, [0x06AB] = true, [0x06AC] = true, [0x06AD] = true, - [0x06AE] = true, [0x06AF] = true, [0x06B0] = true, [0x06B1] = true, - [0x06B2] = true, [0x06B3] = true, [0x06B4] = true, [0x06B5] = true, - [0x06B6] = true, [0x06B7] = true, [0x06B8] = true, [0x06B9] = true, - [0x06BA] = true, [0x06BB] = true, [0x06BC] = true, [0x06BD] = true, - [0x06BE] = true, [0x06BF] = true, [0x06C1] = true, [0x06C2] = true, - [0x06CC] = true, [0x06CE] = true, [0x06D0] = true, [0x06D1] = true, - [0x06FA] = true, [0x06FB] = true, [0x06FC] = true, [0x06FF] = true, - [0x0750] = true, [0x0751] = true, [0x0752] = true, [0x0753] = true, - [0x0754] = true, [0x0755] = true, [0x0756] = true, [0x0757] = true, - [0x0758] = true, [0x075C] = true, [0x075D] = true, [0x075E] = true, - [0x075F] = true, [0x0760] = true, [0x0761] = true, [0x0762] = true, - [0x0763] = true, [0x0764] = true, [0x0765] = true, [0x0766] = true, - [0x0767] = true, [0x0768] = true, [0x0769] = true, [0x076A] = true, - [0x076D] = true, [0x076E] = true, [0x076F] = true, [0x0770] = true, - [0x0772] = true, [0x0775] = true, [0x0776] = true, [0x0777] = true, - [0x077A] = true, [0x077B] = true, [0x077C] = true, [0x077D] = true, - [0x077E] = true, [0x077F] = true, - - -- syriac - - [0x0712] = true, [0x0713] = true, [0x0714] = true, [0x071A] = true, - [0x071B] = true, [0x071C] = true, [0x071D] = true, [0x071F] = true, - [0x0720] = true, [0x0721] = true, [0x0722] = true, [0x0723] = true, - [0x0724] = true, [0x0725] = true, [0x0726] = true, [0x0727] = true, - [0x0729] = true, [0x072B] = true, - - -- also - - [zwj] = true, +local isol_fina_medi_init={ + [0x0626]=true,[0x0628]=true,[0x062A]=true,[0x062B]=true, + [0x062C]=true,[0x062D]=true,[0x062E]=true,[0x0633]=true, + [0x0634]=true,[0x0635]=true,[0x0636]=true,[0x0637]=true, + [0x0638]=true,[0x0639]=true,[0x063A]=true,[0x063B]=true, + [0x063C]=true,[0x063D]=true,[0x063E]=true,[0x063F]=true, + [0x0640]=true,[0x0641]=true,[0x0642]=true,[0x0643]=true, + [0x0644]=true,[0x0645]=true,[0x0646]=true,[0x0647]=true, + [0x0649]=true,[0x064A]=true,[0x066E]=true,[0x066F]=true, + [0x0678]=true,[0x0679]=true,[0x067A]=true,[0x067B]=true, + [0x067C]=true,[0x067D]=true,[0x067E]=true,[0x067F]=true, + [0x0680]=true,[0x0681]=true,[0x0682]=true,[0x0683]=true, + [0x0684]=true,[0x0685]=true,[0x0686]=true,[0x0687]=true, + [0x069A]=true,[0x069B]=true,[0x069C]=true,[0x069D]=true, + [0x069E]=true,[0x069F]=true,[0x06A0]=true,[0x06A1]=true, + [0x06A2]=true,[0x06A3]=true,[0x06A4]=true,[0x06A5]=true, + [0x06A6]=true,[0x06A7]=true,[0x06A8]=true,[0x06A9]=true, + [0x06AA]=true,[0x06AB]=true,[0x06AC]=true,[0x06AD]=true, + [0x06AE]=true,[0x06AF]=true,[0x06B0]=true,[0x06B1]=true, + [0x06B2]=true,[0x06B3]=true,[0x06B4]=true,[0x06B5]=true, + [0x06B6]=true,[0x06B7]=true,[0x06B8]=true,[0x06B9]=true, + [0x06BA]=true,[0x06BB]=true,[0x06BC]=true,[0x06BD]=true, + [0x06BE]=true,[0x06BF]=true,[0x06C1]=true,[0x06C2]=true, + [0x06CC]=true,[0x06CE]=true,[0x06D0]=true,[0x06D1]=true, + [0x06FA]=true,[0x06FB]=true,[0x06FC]=true,[0x06FF]=true, + [0x0750]=true,[0x0751]=true,[0x0752]=true,[0x0753]=true, + [0x0754]=true,[0x0755]=true,[0x0756]=true,[0x0757]=true, + [0x0758]=true,[0x075C]=true,[0x075D]=true,[0x075E]=true, + [0x075F]=true,[0x0760]=true,[0x0761]=true,[0x0762]=true, + [0x0763]=true,[0x0764]=true,[0x0765]=true,[0x0766]=true, + [0x0767]=true,[0x0768]=true,[0x0769]=true,[0x076A]=true, + [0x076D]=true,[0x076E]=true,[0x076F]=true,[0x0770]=true, + [0x0772]=true,[0x0775]=true,[0x0776]=true,[0x0777]=true, + [0x077A]=true,[0x077B]=true,[0x077C]=true,[0x077D]=true, + [0x077E]=true,[0x077F]=true, + [0x0712]=true,[0x0713]=true,[0x0714]=true,[0x071A]=true, + [0x071B]=true,[0x071C]=true,[0x071D]=true,[0x071F]=true, + [0x0720]=true,[0x0721]=true,[0x0722]=true,[0x0723]=true, + [0x0724]=true,[0x0725]=true,[0x0726]=true,[0x0727]=true, + [0x0729]=true,[0x072B]=true, + [zwj]=true, } - -local arab_warned = { } - --- todo: gref - +local arab_warned={} local function warning(current,what) - local char = current.char - if not arab_warned[char] then - log.report("analyze","arab: character %s (U+%05X) has no %s class", char, char, what) - arab_warned[char] = true - end + local char=current.char + if not arab_warned[char] then + log.report("analyze","arab: character %s (U+%05X) has no %s class",char,char,what) + arab_warned[char]=true + end end - local function finish(first,last) - if last then - if first == last then - local fc = first.char - if isol_fina_medi_init[fc] or isol_fina[fc] then - first[a_state] = s_isol - else - warning(first,"isol") - first[a_state] = s_error - end - else - local lc = last.char - if isol_fina_medi_init[lc] or isol_fina[lc] then -- why isol here ? - -- if laststate == 1 or laststate == 2 or laststate == 4 then - last[a_state] = s_fina - else - warning(last,"fina") - last[a_state] = s_error - end - end - first, last = nil, nil - elseif first then - -- first and last are either both set so we never com here - local fc = first.char - if isol_fina_medi_init[fc] or isol_fina[fc] then - first[a_state] = s_isol - else - warning(first,"isol") - first[a_state] = s_error - end - first = nil - end - return first, last -end - -function methods.arab(head,font,attr) -- maybe make a special version with no trace - local useunicodemarks = analyzers.useunicodemarks - local tfmdata = fontdata[font] - local marks = tfmdata.resources.marks - local first, last, current, done = nil, nil, head, false - while current do - if current.id == glyph_code and current.font == font and current.subtype<256 and not current[a_state] then - done = true - local char = current.char - if marks[char] or (useunicodemarks and categories[char] == "mn") then - current[a_state] = s_mark - elseif isol[char] then -- can be zwj or zwnj too - first, last = finish(first,last) - current[a_state] = s_isol - first, last = nil, nil - elseif not first then - if isol_fina_medi_init[char] then - current[a_state] = s_init - first, last = first or current, current - elseif isol_fina[char] then - current[a_state] = s_isol - first, last = nil, nil - else -- no arab - first, last = finish(first,last) - end - elseif isol_fina_medi_init[char] then - first, last = first or current, current - current[a_state] = s_medi - elseif isol_fina[char] then - if not last[a_state] == s_init then - -- tricky, we need to check what last may be ! - last[a_state] = s_medi - end - current[a_state] = s_fina - first, last = nil, nil - elseif char >= 0x0600 and char <= 0x06FF then - current[a_state] = s_rest - first, last = finish(first,last) - else --no - first, last = finish(first,last) - end - else - first, last = finish(first,last) - end - current = current.next + if last then + if first==last then + local fc=first.char + if isol_fina_medi_init[fc] or isol_fina[fc] then + first[a_state]=s_isol + else + warning(first,"isol") + first[a_state]=s_error + end + else + local lc=last.char + if isol_fina_medi_init[lc] or isol_fina[lc] then + last[a_state]=s_fina + else + warning(last,"fina") + last[a_state]=s_error + end + end + first,last=nil,nil + elseif first then + local fc=first.char + if isol_fina_medi_init[fc] or isol_fina[fc] then + first[a_state]=s_isol + else + warning(first,"isol") + first[a_state]=s_error + end + first=nil + end + return first,last +end +function methods.arab(head,font,attr) + local useunicodemarks=analyzers.useunicodemarks + local tfmdata=fontdata[font] + local marks=tfmdata.resources.marks + local first,last,current,done=nil,nil,head,false + while current do + if current.id==glyph_code and current.font==font and current.subtype<256 and not current[a_state] then + done=true + local char=current.char + if marks[char] or (useunicodemarks and categories[char]=="mn") then + current[a_state]=s_mark + elseif isol[char] then + first,last=finish(first,last) + current[a_state]=s_isol + first,last=nil,nil + elseif not first then + if isol_fina_medi_init[char] then + current[a_state]=s_init + first,last=first or current,current + elseif isol_fina[char] then + current[a_state]=s_isol + first,last=nil,nil + else + first,last=finish(first,last) + end + elseif isol_fina_medi_init[char] then + first,last=first or current,current + current[a_state]=s_medi + elseif isol_fina[char] then + if not last[a_state]==s_init then + last[a_state]=s_medi + end + current[a_state]=s_fina + first,last=nil,nil + elseif char>=0x0600 and char<=0x06FF then + current[a_state]=s_rest + first,last=finish(first,last) + else + first,last=finish(first,last) + end + else + first,last=finish(first,last) end - first, last = finish(first,last) - return head, done + current=current.next + end + first,last=finish(first,last) + return head,done end - -methods.syrc = methods.arab - +methods.syrc=methods.arab directives.register("otf.analyze.useunicodemarks",function(v) - analyzers.useunicodemarks = v + analyzers.useunicodemarks=v end) end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['font-otn'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files", +if not modules then modules={} end modules ['font-otn']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files", } - --- preprocessors = { "nodes" } - --- this is still somewhat preliminary and it will get better in due time; --- much functionality could only be implemented thanks to the husayni font --- of Idris Samawi Hamid to who we dedicate this module. - --- in retrospect it always looks easy but believe it or not, it took a lot --- of work to get proper open type support done: buggy fonts, fuzzy specs, --- special made testfonts, many skype sessions between taco, idris and me, --- torture tests etc etc ... unfortunately the code does not show how much --- time it took ... - --- todo: --- --- kerning is probably not yet ok for latin around dics nodes --- extension infrastructure (for usage out of context) --- sorting features according to vendors/renderers --- alternative loop quitters --- check cursive and r2l --- find out where ignore-mark-classes went --- default features (per language, script) --- handle positions (we need example fonts) --- handle gpos_single (we might want an extra width field in glyph nodes because adding kerns might interfere) --- mark (to mark) code is still not what it should be (too messy but we need some more extreem husayni tests) --- remove some optimizations (when I have a faster machine) - - ---[[ldx-- -

This module is a bit more split up that I'd like but since we also want to test -with plain it has to be so. This module is part of -and discussion about improvements and functionality mostly happens on the - mailing list.

- -

The specification of OpenType is kind of vague. Apart from a lack of a proper -free specifications there's also the problem that Microsoft and Adobe -may have their own interpretation of how and in what order to apply features. -In general the Microsoft website has more detailed specifications and is a -better reference. There is also some information in the FontForge help files.

- -

Because there is so much possible, fonts might contain bugs and/or be made to -work with certain rederers. These may evolve over time which may have the side -effect that suddenly fonts behave differently.

- -

After a lot of experiments (mostly by Taco, me and Idris) we're now at yet another -implementation. Of course all errors are mine and of course the code can be -improved. There are quite some optimizations going on here and processing speed -is currently acceptable. Not all functions are implemented yet, often because I -lack the fonts for testing. Many scripts are not yet supported either, but I will -look into them as soon as users ask for it.

- -

Because there are different interpretations possible, I will extend the code -with more (configureable) variants. I can also add hooks for users so that they can -write their own extensions.

- -

Glyphs are indexed not by unicode but in their own way. This is because there is no -relationship with unicode at all, apart from the fact that a font might cover certain -ranges of characters. One character can have multiple shapes. However, at the - end we use unicode so and all extra glyphs are mapped into a private -space. This is needed because we need to access them and has to include -then in the output eventually.

- -

The raw table as it coms from gets reorganized in to fit out needs. -In that table is packed (similar tables are shared) and cached on disk -so that successive runs can use the optimized table (after loading the table is -unpacked). The flattening code used later is a prelude to an even more compact table -format (and as such it keeps evolving).

- -

This module is sparsely documented because it is a moving target. The table format -of the reader changes and we experiment a lot with different methods for supporting -features.

- -

As with the code, we may decide to store more information in the - table.

- -

Incrementing the version number will force a re-cache. We jump the number by one -when there's a fix in the library or code that -results in different tables.

---ldx]]-- - --- action handler chainproc chainmore comment --- --- gsub_single ok ok ok --- gsub_multiple ok ok not implemented yet --- gsub_alternate ok ok not implemented yet --- gsub_ligature ok ok ok --- gsub_context ok -- --- gsub_contextchain ok -- --- gsub_reversecontextchain ok -- --- chainsub -- ok --- reversesub -- ok --- gpos_mark2base ok ok --- gpos_mark2ligature ok ok --- gpos_mark2mark ok ok --- gpos_cursive ok untested --- gpos_single ok ok --- gpos_pair ok ok --- gpos_context ok -- --- gpos_contextchain ok -- --- --- todo: contextpos and contextsub and class stuff --- --- actions: --- --- handler : actions triggered by lookup --- chainproc : actions triggered by contextual lookup --- chainmore : multiple substitutions triggered by contextual lookup (e.g. fij -> f + ij) --- --- remark: the 'not implemented yet' variants will be done when we have fonts that use them --- remark: we need to check what to do with discretionaries - --- We used to have independent hashes for lookups but as the tags are unique --- we now use only one hash. If needed we can have multiple again but in that --- case I will probably prefix (i.e. rename) the lookups in the cached font file. - --- Todo: make plugin feature that operates on char/glyphnode arrays - -local concat, insert, remove = table.concat, table.insert, table.remove -local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip -local type, next, tonumber, tostring = type, next, tonumber, tostring -local lpegmatch = lpeg.match -local random = math.random - -local logs, trackers, nodes, attributes = logs, trackers, nodes, attributes - -local registertracker = trackers.register - -local fonts = fonts -local otf = fonts.handlers.otf - -local trace_lookups = false registertracker("otf.lookups", function(v) trace_lookups = v end) -local trace_singles = false registertracker("otf.singles", function(v) trace_singles = v end) -local trace_multiples = false registertracker("otf.multiples", function(v) trace_multiples = v end) -local trace_alternatives = false registertracker("otf.alternatives", function(v) trace_alternatives = v end) -local trace_ligatures = false registertracker("otf.ligatures", function(v) trace_ligatures = v end) -local trace_contexts = false registertracker("otf.contexts", function(v) trace_contexts = v end) -local trace_marks = false registertracker("otf.marks", function(v) trace_marks = v end) -local trace_kerns = false registertracker("otf.kerns", function(v) trace_kerns = v end) -local trace_cursive = false registertracker("otf.cursive", function(v) trace_cursive = v end) -local trace_preparing = false registertracker("otf.preparing", function(v) trace_preparing = v end) -local trace_bugs = false registertracker("otf.bugs", function(v) trace_bugs = v end) -local trace_details = false registertracker("otf.details", function(v) trace_details = v end) -local trace_applied = false registertracker("otf.applied", function(v) trace_applied = v end) -local trace_steps = false registertracker("otf.steps", function(v) trace_steps = v end) -local trace_skips = false registertracker("otf.skips", function(v) trace_skips = v end) -local trace_directions = false registertracker("otf.directions", function(v) trace_directions = v end) - -local report_direct = logs.reporter("fonts","otf direct") -local report_subchain = logs.reporter("fonts","otf subchain") -local report_chain = logs.reporter("fonts","otf chain") -local report_process = logs.reporter("fonts","otf process") -local report_prepare = logs.reporter("fonts","otf prepare") -local report_warning = logs.reporter("fonts","otf warning") - -registertracker("otf.verbose_chain", function(v) otf.setcontextchain(v and "verbose") end) -registertracker("otf.normal_chain", function(v) otf.setcontextchain(v and "normal") end) - -registertracker("otf.replacements", "otf.singles,otf.multiples,otf.alternatives,otf.ligatures") +local concat,insert,remove=table.concat,table.insert,table.remove +local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip +local type,next,tonumber,tostring=type,next,tonumber,tostring +local lpegmatch=lpeg.match +local random=math.random +local logs,trackers,nodes,attributes=logs,trackers,nodes,attributes +local registertracker=trackers.register +local fonts=fonts +local otf=fonts.handlers.otf +local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end) +local trace_singles=false registertracker("otf.singles",function(v) trace_singles=v end) +local trace_multiples=false registertracker("otf.multiples",function(v) trace_multiples=v end) +local trace_alternatives=false registertracker("otf.alternatives",function(v) trace_alternatives=v end) +local trace_ligatures=false registertracker("otf.ligatures",function(v) trace_ligatures=v end) +local trace_contexts=false registertracker("otf.contexts",function(v) trace_contexts=v end) +local trace_marks=false registertracker("otf.marks",function(v) trace_marks=v end) +local trace_kerns=false registertracker("otf.kerns",function(v) trace_kerns=v end) +local trace_cursive=false registertracker("otf.cursive",function(v) trace_cursive=v end) +local trace_preparing=false registertracker("otf.preparing",function(v) trace_preparing=v end) +local trace_bugs=false registertracker("otf.bugs",function(v) trace_bugs=v end) +local trace_details=false registertracker("otf.details",function(v) trace_details=v end) +local trace_applied=false registertracker("otf.applied",function(v) trace_applied=v end) +local trace_steps=false registertracker("otf.steps",function(v) trace_steps=v end) +local trace_skips=false registertracker("otf.skips",function(v) trace_skips=v end) +local trace_directions=false registertracker("otf.directions",function(v) trace_directions=v end) +local report_direct=logs.reporter("fonts","otf direct") +local report_subchain=logs.reporter("fonts","otf subchain") +local report_chain=logs.reporter("fonts","otf chain") +local report_process=logs.reporter("fonts","otf process") +local report_prepare=logs.reporter("fonts","otf prepare") +local report_warning=logs.reporter("fonts","otf warning") +registertracker("otf.verbose_chain",function(v) otf.setcontextchain(v and "verbose") end) +registertracker("otf.normal_chain",function(v) otf.setcontextchain(v and "normal") end) +registertracker("otf.replacements","otf.singles,otf.multiples,otf.alternatives,otf.ligatures") registertracker("otf.positions","otf.marks,otf.kerns,otf.cursive") registertracker("otf.actions","otf.replacements,otf.positions") registertracker("otf.injections","nodes.injections") - registertracker("*otf.sample","otf.steps,otf.actions,otf.analyzing") - -local insert_node_after = node.insert_after -local delete_node = nodes.delete -local copy_node = node.copy -local find_node_tail = node.tail or node.slide -local flush_node_list = node.flush_list - -local setmetatableindex = table.setmetatableindex - -local zwnj = 0x200C -local zwj = 0x200D -local wildcard = "*" -local default = "dflt" - -local nodecodes = nodes.nodecodes -local whatcodes = nodes.whatcodes -local glyphcodes = nodes.glyphcodes - -local glyph_code = nodecodes.glyph -local glue_code = nodecodes.glue -local disc_code = nodecodes.disc -local whatsit_code = nodecodes.whatsit - -local dir_code = whatcodes.dir -local localpar_code = whatcodes.localpar - -local ligature_code = glyphcodes.ligature - -local privateattribute = attributes.private - --- Something is messed up: we have two mark / ligature indices, one at the injection --- end and one here ... this is bases in KE's patches but there is something fishy --- there as I'm pretty sure that for husayni we need some connection (as it's much --- more complex than an average font) but I need proper examples of all cases, not --- of only some. - -local a_state = privateattribute('state') -local a_markbase = privateattribute('markbase') -local a_markmark = privateattribute('markmark') -local a_markdone = privateattribute('markdone') -- assigned at the injection end -local a_cursbase = privateattribute('cursbase') -local a_curscurs = privateattribute('curscurs') -local a_cursdone = privateattribute('cursdone') -local a_kernpair = privateattribute('kernpair') -local a_ligacomp = privateattribute('ligacomp') -- assigned here (ideally it should be combined) - -local injections = nodes.injections -local setmark = injections.setmark -local setcursive = injections.setcursive -local setkern = injections.setkern -local setpair = injections.setpair - -local markonce = true -local cursonce = true -local kernonce = true - -local fonthashes = fonts.hashes -local fontdata = fonthashes.identifiers - -local otffeatures = fonts.constructors.newfeatures("otf") -local registerotffeature = otffeatures.register - -local onetimemessage = fonts.loggers.onetimemessage - -otf.defaultnodealternate = "none" -- first last - --- we share some vars here, after all, we have no nested lookups and less code - -local tfmdata = false -local characters = false -local descriptions = false -local resources = false -local marks = false -local currentfont = false -local lookuptable = false -local anchorlookups = false -local lookuptypes = false -local handlers = { } -local rlmode = 0 -local featurevalue = false - --- head is always a whatsit so we can safely assume that head is not changed - --- we use this for special testing and documentation - -local checkstep = (nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end -local registerstep = (nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end -local registermessage = (nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end - +local insert_node_after=node.insert_after +local delete_node=nodes.delete +local copy_node=node.copy +local find_node_tail=node.tail or node.slide +local flush_node_list=node.flush_list +local endofmath=nodes.endofmath +local setmetatableindex=table.setmetatableindex +local zwnj=0x200C +local zwj=0x200D +local wildcard="*" +local default="dflt" +local nodecodes=nodes.nodecodes +local whatcodes=nodes.whatcodes +local glyphcodes=nodes.glyphcodes +local glyph_code=nodecodes.glyph +local glue_code=nodecodes.glue +local disc_code=nodecodes.disc +local whatsit_code=nodecodes.whatsit +local math_code=nodecodes.math +local dir_code=whatcodes.dir +local localpar_code=whatcodes.localpar +local ligature_code=glyphcodes.ligature +local privateattribute=attributes.private +local a_state=privateattribute('state') +local a_markbase=privateattribute('markbase') +local a_markmark=privateattribute('markmark') +local a_markdone=privateattribute('markdone') +local a_cursbase=privateattribute('cursbase') +local a_curscurs=privateattribute('curscurs') +local a_cursdone=privateattribute('cursdone') +local a_kernpair=privateattribute('kernpair') +local a_ligacomp=privateattribute('ligacomp') +local injections=nodes.injections +local setmark=injections.setmark +local setcursive=injections.setcursive +local setkern=injections.setkern +local setpair=injections.setpair +local markonce=true +local cursonce=true +local kernonce=true +local fonthashes=fonts.hashes +local fontdata=fonthashes.identifiers +local otffeatures=fonts.constructors.newfeatures("otf") +local registerotffeature=otffeatures.register +local onetimemessage=fonts.loggers.onetimemessage +otf.defaultnodealternate="none" +local tfmdata=false +local characters=false +local descriptions=false +local resources=false +local marks=false +local currentfont=false +local lookuptable=false +local anchorlookups=false +local lookuptypes=false +local handlers={} +local rlmode=0 +local featurevalue=false +local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end +local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end +local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end local function logprocess(...) - if trace_steps then - registermessage(...) - end - report_direct(...) + if trace_steps then + registermessage(...) + end + report_direct(...) end - local function logwarning(...) - report_direct(...) + report_direct(...) end - local function gref(n) - if type(n) == "number" then - local description = descriptions[n] - local name = description and description.name - if name then - return format("U+%05X (%s)",n,name) - else - return format("U+%05X",n) - end - elseif not n then - return "" + if type(n)=="number" then + local description=descriptions[n] + local name=description and description.name + if name then + return format("U+%05X (%s)",n,name) else - local num, nam = { }, { } - for i=1,#n do - local ni = n[i] - if tonumber(ni) then -- later we will start at 2 - local di = descriptions[ni] - num[i] = format("U+%05X",ni) - nam[i] = di and di.name or "?" - end - end - return format("%s (%s)",concat(num," "), concat(nam," ")) - end + return format("U+%05X",n) + end + elseif not n then + return "" + else + local num,nam={},{} + for i=1,#n do + local ni=n[i] + if tonumber(ni) then + local di=descriptions[ni] + num[i]=format("U+%05X",ni) + nam[i]=di and di.name or "?" + end + end + return format("%s (%s)",concat(num," "),concat(nam," ")) + end end - local function cref(kind,chainname,chainlookupname,lookupname,index) - if index then - return format("feature %s, chain %s, sub %s, lookup %s, index %s",kind,chainname,chainlookupname,lookupname,index) - elseif lookupname then - return format("feature %s, chain %s, sub %s, lookup %s",kind,chainname or "?",chainlookupname or "?",lookupname) - elseif chainlookupname then - return format("feature %s, chain %s, sub %s",kind,chainname or "?",chainlookupname) - elseif chainname then - return format("feature %s, chain %s",kind,chainname) - else - return format("feature %s",kind) - end + if index then + return format("feature %s, chain %s, sub %s, lookup %s, index %s",kind,chainname,chainlookupname,lookupname,index) + elseif lookupname then + return format("feature %s, chain %s, sub %s, lookup %s",kind,chainname or "?",chainlookupname or "?",lookupname) + elseif chainlookupname then + return format("feature %s, chain %s, sub %s",kind,chainname or "?",chainlookupname) + elseif chainname then + return format("feature %s, chain %s",kind,chainname) + else + return format("feature %s",kind) + end end - local function pref(kind,lookupname) - return format("feature %s, lookup %s",kind,lookupname) -end - --- We can assume that languages that use marks are not hyphenated. We can also assume --- that at most one discretionary is present. - --- We do need components in funny kerning mode but maybe I can better reconstruct then --- as we do have the font components info available; removing components makes the --- previous code much simpler. Also, later on copying and freeing becomes easier. --- However, for arabic we need to keep them around for the sake of mark placement --- and indices. - -local function copy_glyph(g) -- next and prev are untouched ! - local components = g.components - if components then - g.components = nil - local n = copy_node(g) - g.components = components - return n - else - return copy_node(g) - end -end - --- start is a mark and we need to keep that one - --- local function markstoligature(kind,lookupname,start,stop,char) --- -- [start]..[stop] --- local keep = start --- local prev = start.prev --- local next = stop.next --- local base = copy_glyph(start) --- local current, start = insert_node_after(start,start,base) --- -- [current][start]..[stop] --- current.next = next --- if next then --- next.prev = current --- end --- start.prev = nil --- stop.next = nil --- current.char = char --- current.subtype = ligature_code --- current.components = start --- return keep --- end - -local function markstoligature(kind,lookupname,start,stop,char) - if start == stop and start.char == char then - return start - else - local prev = start.prev - local next = stop.next - start.prev = nil - stop.next = nil - local base = copy_glyph(start) - base.char = char - base.subtype = ligature_code - base.components = start - if prev then - prev.next = base - end - if next then - next.prev = base - end - base.next = next - base.prev = prev - return base - end -end - --- The next code is somewhat complicated by the fact that some fonts can have ligatures made --- from ligatures that themselves have marks. This was identified by Kai in for instance --- arabtype: KAF LAM SHADDA ALEF FATHA (0x0643 0x0644 0x0651 0x0627 0x064E). This becomes --- KAF LAM-ALEF with a SHADDA on the first and a FATHA op de second component. In a next --- iteration this becomes a KAF-LAM-ALEF with a SHADDA on the second and a FATHA on the --- third component. - -local function getcomponentindex(start) - if start.id ~= glyph_code then - return 0 - elseif start.subtype == ligature_code then - local i = 0 - local components = start.components - while components do - i = i + getcomponentindex(components) - components = components.next - end - return i - elseif not marks[start.char] then - return 1 - else - return 0 - end + return format("feature %s, lookup %s",kind,lookupname) +end +local function copy_glyph(g) + local components=g.components + if components then + g.components=nil + local n=copy_node(g) + g.components=components + return n + else + return copy_node(g) + end end - -local function toligature(kind,lookupname,start,stop,char,markflag,discfound) -- brr head - if start == stop and start.char == char then - start.char = char - return start - end - local prev = start.prev - local next = stop.next - start.prev = nil - stop.next = nil - local base = copy_glyph(start) - base.char = char - base.subtype = ligature_code - base.components = start -- start can have components +local function markstoligature(kind,lookupname,start,stop,char) + if start==stop and start.char==char then + return start + else + local prev=start.prev + local next=stop.next + start.prev=nil + stop.next=nil + local base=copy_glyph(start) + base.char=char + base.subtype=ligature_code + base.components=start if prev then - prev.next = base + prev.next=base end if next then - next.prev = base - end - base.next = next - base.prev = prev - if not discfound then - local deletemarks = markflag ~= "mark" - local components = start - local baseindex = 0 - local componentindex = 0 - local head = base - local current = base - while start do - local char = start.char - if not marks[char] then - baseindex = baseindex + componentindex - componentindex = getcomponentindex(start) - elseif not deletemarks then -- quite fishy - start[a_ligacomp] = baseindex + (start[a_ligacomp] or componentindex) - if trace_marks then - logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp]) - end - head, current = insert_node_after(head,current,copy_node(start)) -- unlikely that mark has components - end - start = start.next - end - local start = components - while start and start.id == glyph_code do -- hm, is id test needed ? - local char = start.char - if marks[char] then - start[a_ligacomp] = baseindex + (start[a_ligacomp] or componentindex) - if trace_marks then - logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp]) - end - else - break - end - start = start.next - end + next.prev=base end + base.next=next + base.prev=prev return base + end +end +local function getcomponentindex(start) + if start.id~=glyph_code then + return 0 + elseif start.subtype==ligature_code then + local i=0 + local components=start.components + while components do + i=i+getcomponentindex(components) + components=components.next + end + return i + elseif not marks[start.char] then + return 1 + else + return 0 + end +end +local function toligature(kind,lookupname,start,stop,char,markflag,discfound) + if start==stop and start.char==char then + start.char=char + return start + end + local prev=start.prev + local next=stop.next + start.prev=nil + stop.next=nil + local base=copy_glyph(start) + base.char=char + base.subtype=ligature_code + base.components=start + if prev then + prev.next=base + end + if next then + next.prev=base + end + base.next=next + base.prev=prev + if not discfound then + local deletemarks=markflag~="mark" + local components=start + local baseindex=0 + local componentindex=0 + local head=base + local current=base + while start do + local char=start.char + if not marks[char] then + baseindex=baseindex+componentindex + componentindex=getcomponentindex(start) + elseif not deletemarks then + start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex) + if trace_marks then + logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp]) + end + head,current=insert_node_after(head,current,copy_node(start)) + end + start=start.next + end + local start=components + while start and start.id==glyph_code do + local char=start.char + if marks[char] then + start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex) + if trace_marks then + logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp]) + end + else + break + end + start=start.next + end + end + return base end - function handlers.gsub_single(head,start,kind,lookupname,replacement) - if trace_singles then - logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(start.char),gref(replacement)) - end - start.char = replacement - return head, start, true + if trace_singles then + logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(start.char),gref(replacement)) + end + start.char=replacement + return head,start,true end - local function get_alternative_glyph(start,alternatives,value) - -- needs checking: (global value, brrr) - local choice = nil - local n = #alternatives - local char = start.char - -- - if value == "random" then - local r = random(1,n) - value, choice = format("random, choice %s",r), alternatives[r] - elseif value == "first" then - value, choice = format("first, choice %s",1), alternatives[1] - elseif value == "last" then - value, choice = format("last, choice %s",n), alternatives[n] - else - value = tonumber(value) - if type(value) ~= "number" then - value, choice = "default, choice 1", alternatives[1] - elseif value > n then - local defaultalt = otf.defaultnodealternate - if defaultalt == "first" then - value, choice = format("no %s variants, taking %s",value,n), alternatives[n] - elseif defaultalt == "last" then - value, choice = format("no %s variants, taking %s",value,1), alternatives[1] - else - value, choice = format("no %s variants, ignoring",value), false - end - elseif value == 0 then - value, choice = format("choice %s (no change)",value), char - elseif value < 1 then - value, choice = format("no %s variants, taking %s",value,1), alternatives[1] - else - value, choice = format("choice %s",value), alternatives[value] - end - end - return choice -end - -local function multiple_glyphs(head,start,multiple) -- marks ? - local nofmultiples = #multiple - if nofmultiples > 0 then - start.char = multiple[1] - if nofmultiples > 1 then - local sn = start.next - for k=2,nofmultiples do -- todo: use insert_node - local n = copy_node(start) -- ignore components - n.char = multiple[k] - n.next = sn - n.prev = start - if sn then - sn.prev = n - end - start.next = n - start = n - end - end - return head, start, true + local choice=nil + local n=#alternatives + local char=start.char + if value=="random" then + local r=random(1,n) + value,choice=format("random, choice %s",r),alternatives[r] + elseif value=="first" then + value,choice=format("first, choice %s",1),alternatives[1] + elseif value=="last" then + value,choice=format("last, choice %s",n),alternatives[n] + else + value=tonumber(value) + if type(value)~="number" then + value,choice="default, choice 1",alternatives[1] + elseif value>n then + local defaultalt=otf.defaultnodealternate + if defaultalt=="first" then + value,choice=format("no %s variants, taking %s",value,n),alternatives[n] + elseif defaultalt=="last" then + value,choice=format("no %s variants, taking %s",value,1),alternatives[1] + else + value,choice=format("no %s variants, ignoring",value),false + end + elseif value==0 then + value,choice=format("choice %s (no change)",value),char + elseif value<1 then + value,choice=format("no %s variants, taking %s",value,1),alternatives[1] else - if trace_multiples then - logprocess("no multiple for %s",gref(start.char)) - end - return head, start, false + value,choice=format("choice %s",value),alternatives[value] + end + end + return choice +end +local function multiple_glyphs(head,start,multiple) + local nofmultiples=#multiple + if nofmultiples>0 then + start.char=multiple[1] + if nofmultiples>1 then + local sn=start.next + for k=2,nofmultiples do + local n=copy_node(start) + n.char=multiple[k] + n.next=sn + n.prev=start + if sn then + sn.prev=n + end + start.next=n + start=n + end + end + return head,start,true + else + if trace_multiples then + logprocess("no multiple for %s",gref(start.char)) end + return head,start,false + end end - function handlers.gsub_alternate(head,start,kind,lookupname,alternative,sequence) - local value = featurevalue == true and tfmdata.shared.features[kind] or featurevalue - local choice = get_alternative_glyph(start,alternative,value) - if choice then - if trace_alternatives then - logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),choice) - end - start.char = choice - else - if trace_alternatives then - logwarning("%s: no variant %s for %s",pref(kind,lookupname),tostring(value),gref(start.char)) - end + local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue + local choice=get_alternative_glyph(start,alternative,value) + if choice then + if trace_alternatives then + logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),choice) end - return head, start, true + start.char=choice + else + if trace_alternatives then + logwarning("%s: no variant %s for %s",pref(kind,lookupname),tostring(value),gref(start.char)) + end + end + return head,start,true end - function handlers.gsub_multiple(head,start,kind,lookupname,multiple) - if trace_multiples then - logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple)) - end - return multiple_glyphs(head,start,multiple) + if trace_multiples then + logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple)) + end + return multiple_glyphs(head,start,multiple) end - function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence) - local s, stop, discfound = start.next, nil, false - local startchar = start.char - if marks[startchar] then - while s do - local id = s.id - if id == glyph_code and s.font == currentfont and s.subtype<256 then - local lg = ligature[s.char] - if lg then - stop = s - ligature = lg - s = s.next - else - break - end - else - break - end - end - if stop then - local lig = ligature.ligature - if lig then - if trace_ligatures then - local stopchar = stop.char - start = markstoligature(kind,lookupname,start,stop,lig) - logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char)) - else - start = markstoligature(kind,lookupname,start,stop,lig) - end - return head, start, true - else - -- ok, goto next lookup - end - end - else - local skipmark = sequence.flags[1] - while s do - local id = s.id - if id == glyph_code and s.subtype<256 then - if s.font == currentfont then - local char = s.char - if skipmark and marks[char] then - s = s.next - else - local lg = ligature[char] - if lg then - stop = s - ligature = lg - s = s.next - else - break - end - end - else - break - end - elseif id == disc_code then - discfound = true - s = s.next - else - break - end - end - if stop then - local lig = ligature.ligature - if lig then - if trace_ligatures then - local stopchar = stop.char - start = toligature(kind,lookupname,start,stop,lig,skipmark,discfound) - logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char)) - else - start = toligature(kind,lookupname,start,stop,lig,skipmark,discfound) - end - return head, start, true + local s,stop,discfound=start.next,nil,false + local startchar=start.char + if marks[startchar] then + while s do + local id=s.id + if id==glyph_code and s.font==currentfont and s.subtype<256 then + local lg=ligature[s.char] + if lg then + stop=s + ligature=lg + s=s.next + else + break + end + else + break + end + end + if stop then + local lig=ligature.ligature + if lig then + if trace_ligatures then + local stopchar=stop.char + start=markstoligature(kind,lookupname,start,stop,lig) + logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char)) + else + start=markstoligature(kind,lookupname,start,stop,lig) + end + return head,start,true + else + end + end + else + local skipmark=sequence.flags[1] + while s do + local id=s.id + if id==glyph_code and s.subtype<256 then + if s.font==currentfont then + local char=s.char + if skipmark and marks[char] then + s=s.next + else + local lg=ligature[char] + if lg then + stop=s + ligature=lg + s=s.next else - -- ok, goto next lookup + break end + end + else + break + end + elseif id==disc_code then + discfound=true + s=s.next + else + break + end + end + if stop then + local lig=ligature.ligature + if lig then + if trace_ligatures then + local stopchar=stop.char + start=toligature(kind,lookupname,start,stop,lig,skipmark,discfound) + logprocess("%s: replacing %s upto %s by ligature %s",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char)) + else + start=toligature(kind,lookupname,start,stop,lig,skipmark,discfound) end + return head,start,true + else + end end - return head, start, false + end + return head,start,false end - ---[[ldx-- -

We get hits on a mark, but we're not sure if the it has to be applied so -we need to explicitly test for basechar, baselig and basemark entries.

---ldx]]-- - function handlers.gpos_mark2base(head,start,kind,lookupname,markanchors,sequence) - local markchar = start.char - if marks[markchar] then - local base = start.prev -- [glyph] [start=mark] - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - basechar = base.char - if not marks[basechar] then - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) - end - return head, start, false - end - end - end - local baseanchors = descriptions[basechar] - if baseanchors then - baseanchors = baseanchors.anchors + local markchar=start.char + if marks[markchar] then + local base=start.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + if marks[basechar] then + while true do + base=base.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + basechar=base.char + if not marks[basechar] then + break end - if baseanchors then - local baseanchors = baseanchors['basechar'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) - if trace_marks then - logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)", - pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) - end - return head, start, true - end - end - end - if trace_bugs then - logwarning("%s, no matching anchors for mark %s and base %s",pref(kind,lookupname),gref(markchar),gref(basechar)) - end + else + if trace_bugs then + logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) + end + return head,start,false + end + end + end + local baseanchors=descriptions[basechar] + if baseanchors then + baseanchors=baseanchors.anchors + end + if baseanchors then + local baseanchors=baseanchors['basechar'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)", + pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar)) - onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + return head,start,true + end end - elseif trace_bugs then - logwarning("%s: prev node is no char",pref(kind,lookupname)) + end + if trace_bugs then + logwarning("%s, no matching anchors for mark %s and base %s",pref(kind,lookupname),gref(markchar),gref(basechar)) + end end + else + onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + end elseif trace_bugs then - logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) + logwarning("%s: prev node is no char",pref(kind,lookupname)) end - return head, start, false + elseif trace_bugs then + logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) + end + return head,start,false end - function handlers.gpos_mark2ligature(head,start,kind,lookupname,markanchors,sequence) - -- check chainpos variant - local markchar = start.char - if marks[markchar] then - local base = start.prev -- [glyph] [optional marks] [start=mark] - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - basechar = base.char - if not marks[basechar] then - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) - end - return head, start, false - end - end + local markchar=start.char + if marks[markchar] then + local base=start.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + if marks[basechar] then + while true do + base=base.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + basechar=base.char + if not marks[basechar] then + break end - local index = start[a_ligacomp] - local baseanchors = descriptions[basechar] - if baseanchors then - baseanchors = baseanchors.anchors - if baseanchors then - local baseanchors = baseanchors['baselig'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - ba = ba[index] - if ba then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) -- index - if trace_marks then - logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)", - pref(kind,lookupname),anchor,index,bound,gref(markchar),gref(basechar),index,dx,dy) - end - return head, start, true - end - end - end - end - if trace_bugs then - logwarning("%s: no matching anchors for mark %s and baselig %s",pref(kind,lookupname),gref(markchar),gref(basechar)) - end - end - end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar)) - onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + else + if trace_bugs then + logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) + end + return head,start,false + end + end + end + local index=start[a_ligacomp] + local baseanchors=descriptions[basechar] + if baseanchors then + baseanchors=baseanchors.anchors + if baseanchors then + local baseanchors=baseanchors['baselig'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + ba=ba[index] + if ba then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)", + pref(kind,lookupname),anchor,index,bound,gref(markchar),gref(basechar),index,dx,dy) + end + return head,start,true + end + end + end end - elseif trace_bugs then - logwarning("%s: prev node is no char",pref(kind,lookupname)) + if trace_bugs then + logwarning("%s: no matching anchors for mark %s and baselig %s",pref(kind,lookupname),gref(markchar),gref(basechar)) + end + end end + else + onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + end elseif trace_bugs then - logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) + logwarning("%s: prev node is no char",pref(kind,lookupname)) end - return head, start, false + elseif trace_bugs then + logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) + end + return head,start,false end - function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence) - local markchar = start.char - if marks[markchar] then - local base = start.prev -- [glyph] [basemark] [start=mark] - local slc = start[a_ligacomp] - if slc then -- a rather messy loop ... needs checking with husayni - while base do - local blc = base[a_ligacomp] - if blc and blc ~= slc then - base = base.prev - else - break - end + local markchar=start.char + if marks[markchar] then + local base=start.prev + local slc=start[a_ligacomp] + if slc then + while base do + local blc=base[a_ligacomp] + if blc and blc~=slc then + base=base.prev + else + break + end + end + end + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + local baseanchors=descriptions[basechar] + if baseanchors then + baseanchors=baseanchors.anchors + if baseanchors then + baseanchors=baseanchors['basemark'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)", + pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) + end + return head,start,true + end + end end - end - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then -- subtype test can go - local basechar = base.char - local baseanchors = descriptions[basechar] - if baseanchors then - baseanchors = baseanchors.anchors - if baseanchors then - baseanchors = baseanchors['basemark'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) - if trace_marks then - logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)", - pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) - end - return head, start, true - end - end - end - if trace_bugs then - logwarning("%s: no matching anchors for mark %s and basemark %s",pref(kind,lookupname),gref(markchar),gref(basechar)) - end - end - end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar)) - onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + if trace_bugs then + logwarning("%s: no matching anchors for mark %s and basemark %s",pref(kind,lookupname),gref(markchar),gref(basechar)) end - elseif trace_bugs then - logwarning("%s: prev node is no mark",pref(kind,lookupname)) + end end + else + onetimemessage(currentfont,basechar,"no base anchors",report_fonts) + end elseif trace_bugs then - logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) - end - return head, start, false -end - -function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence) -- to be checked - local alreadydone = cursonce and start[a_cursbase] - if not alreadydone then - local done = false - local startchar = start.char - if marks[startchar] then - if trace_cursive then - logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar)) - end - else - local nxt = start.next - while not done and nxt and nxt.id == glyph_code and nxt.font == currentfont and nxt.subtype<256 do - local nextchar = nxt.char - if marks[nextchar] then - -- should not happen (maybe warning) - nxt = nxt.next - else - local entryanchors = descriptions[nextchar] - if entryanchors then - entryanchors = entryanchors.anchors - if entryanchors then - entryanchors = entryanchors['centry'] - if entryanchors then - local al = anchorlookups[lookupname] - for anchor, entry in next, entryanchors do - if al[anchor] then - local exit = exitanchors[anchor] - if exit then - local dx, dy, bound = setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar]) - if trace_cursive then - logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode) - end - done = true - break - end - end - end - end - end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(startchar)) - onetimemessage(currentfont,startchar,"no entry anchors",report_fonts) - end - break - end - end - end - return head, start, done + logwarning("%s: prev node is no mark",pref(kind,lookupname)) + end + elseif trace_bugs then + logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) + end + return head,start,false +end +function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence) + local alreadydone=cursonce and start[a_cursbase] + if not alreadydone then + local done=false + local startchar=start.char + if marks[startchar] then + if trace_cursive then + logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar)) + end else - if trace_cursive and trace_details then - logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone) - end - return head, start, false - end + local nxt=start.next + while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do + local nextchar=nxt.char + if marks[nextchar] then + nxt=nxt.next + else + local entryanchors=descriptions[nextchar] + if entryanchors then + entryanchors=entryanchors.anchors + if entryanchors then + entryanchors=entryanchors['centry'] + if entryanchors then + local al=anchorlookups[lookupname] + for anchor,entry in next,entryanchors do + if al[anchor] then + local exit=exitanchors[anchor] + if exit then + local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar]) + if trace_cursive then + logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode) + end + done=true + break + end + end + end + end + end + else + onetimemessage(currentfont,startchar,"no entry anchors",report_fonts) + end + break + end + end + end + return head,start,done + else + if trace_cursive and trace_details then + logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone) + end + return head,start,false + end end - function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence) - local startchar = start.char - local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar]) - if trace_kerns then - logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),dx,dy,w,h) - end - return head, start, false + local startchar=start.char + local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar]) + if trace_kerns then + logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),dx,dy,w,h) + end + return head,start,false end - function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence) - -- todo: kerns in disc nodes: pre, post, replace -> loop over disc too - -- todo: kerns in components of ligatures - local snext = start.next - if not snext then - return head, start, false - else - local prev, done = start, false - local factor = tfmdata.parameters.factor - local lookuptype = lookuptypes[lookupname] - while snext and snext.id == glyph_code and snext.font == currentfont and snext.subtype<256 do - local nextchar = snext.char - local krn = kerns[nextchar] - if not krn and marks[nextchar] then - prev = snext - snext = snext.next - else - local krn = kerns[nextchar] - if not krn then - -- skip - elseif type(krn) == "table" then - if lookuptype == "pair" then -- probably not needed - local a, b = krn[2], krn[3] - if a and #a > 0 then - local startchar = start.char - local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar]) - if trace_kerns then - logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h) - end - end - if b and #b > 0 then - local startchar = start.char - local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar]) - if trace_kerns then - logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h) - end - end - else -- wrong ... position has different entries - report_process("%s: check this out (old kern stuff)",pref(kind,lookupname)) - -- local a, b = krn[2], krn[6] - -- if a and a ~= 0 then - -- local k = setkern(snext,factor,rlmode,a) - -- if trace_kerns then - -- logprocess("%s: inserting first kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar)) - -- end - -- end - -- if b and b ~= 0 then - -- logwarning("%s: ignoring second kern xoff %s",pref(kind,lookupname),b*factor) - -- end - end - done = true - elseif krn ~= 0 then - local k = setkern(snext,factor,rlmode,krn) - if trace_kerns then - logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar)) - end - done = true - end - break - end - end - return head, start, done - end -end - ---[[ldx-- -

I will implement multiple chain replacements once I run into a font that uses -it. It's not that complex to handle.

---ldx]]-- - -local chainmores = { } -local chainprocs = { } - + local snext=start.next + if not snext then + return head,start,false + else + local prev,done=start,false + local factor=tfmdata.parameters.factor + local lookuptype=lookuptypes[lookupname] + while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do + local nextchar=snext.char + local krn=kerns[nextchar] + if not krn and marks[nextchar] then + prev=snext + snext=snext.next + else + local krn=kerns[nextchar] + if not krn then + elseif type(krn)=="table" then + if lookuptype=="pair" then + local a,b=krn[2],krn[3] + if a and #a>0 then + local startchar=start.char + local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar]) + if trace_kerns then + logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h) + end + end + if b and #b>0 then + local startchar=start.char + local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar]) + if trace_kerns then + logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h) + end + end + else + report_process("%s: check this out (old kern stuff)",pref(kind,lookupname)) + end + done=true + elseif krn~=0 then + local k=setkern(snext,factor,rlmode,krn) + if trace_kerns then + logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar)) + end + done=true + end + break + end + end + return head,start,done + end +end +local chainmores={} +local chainprocs={} local function logprocess(...) - if trace_steps then - registermessage(...) - end - report_subchain(...) + if trace_steps then + registermessage(...) + end + report_subchain(...) end - -local logwarning = report_subchain - +local logwarning=report_subchain local function logprocess(...) - if trace_steps then - registermessage(...) - end - report_chain(...) + if trace_steps then + registermessage(...) + end + report_chain(...) end - -local logwarning = report_chain - --- We could share functions but that would lead to extra function calls with many --- arguments, redundant tests and confusing messages. - +local logwarning=report_chain function chainprocs.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname) - logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) - return head, start, false + logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) + return head,start,false end - function chainmores.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname,n) - logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) - return head, start, false + logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) + return head,start,false end - --- The reversesub is a special case, which is why we need to store the replacements --- in a bit weird way. There is no lookup and the replacement comes from the lookup --- itself. It is meant mostly for dealing with Urdu. - function chainprocs.reversesub(head,start,stop,kind,chainname,currentcontext,lookuphash,replacements) - local char = start.char - local replacement = replacements[char] - if replacement then - if trace_singles then - logprocess("%s: single reverse replacement of %s by %s",cref(kind,chainname),gref(char),gref(replacement)) - end - start.char = replacement - return head, start, true - else - return head, start, false - end -end - ---[[ldx-- -

This chain stuff is somewhat tricky since we can have a sequence of actions to be -applied: single, alternate, multiple or ligature where ligature can be an invalid -one in the sense that it will replace multiple by one but not neccessary one that -looks like the combination (i.e. it is the counterpart of multiple then). For -example, the following is valid:

- - -xxxabcdexxx [single a->A][multiple b->BCD][ligature cde->E] xxxABCDExxx - - -

Therefore we we don't really do the replacement here already unless we have the -single lookup case. The efficiency of the replacements can be improved by deleting -as less as needed but that would also make the code even more messy.

---ldx]]-- - -local function delete_till_stop(start,stop,ignoremarks) -- keeps start - local n = 1 - if start == stop then - -- done - elseif ignoremarks then - repeat -- start x x m x x stop => start m - local next = start.next - if not marks[next.char] then - local components = next.components - if components then -- probably not needed - flush_node_list(components) - end - delete_node(start,next) - end - n = n + 1 - until next == stop - else -- start x x x stop => start - repeat - local next = start.next - local components = next.components - if components then -- probably not needed - flush_node_list(components) - end - delete_node(start,next) - n = n + 1 - until next == stop - end - return n + local char=start.char + local replacement=replacements[char] + if replacement then + if trace_singles then + logprocess("%s: single reverse replacement of %s by %s",cref(kind,chainname),gref(char),gref(replacement)) + end + start.char=replacement + return head,start,true + else + return head,start,false + end +end +local function delete_till_stop(start,stop,ignoremarks) + local n=1 + if start==stop then + elseif ignoremarks then + repeat + local next=start.next + if not marks[next.char] then + local components=next.components + if components then + flush_node_list(components) + end + delete_node(start,next) + end + n=n+1 + until next==stop + else + repeat + local next=start.next + local components=next.components + if components then + flush_node_list(components) + end + delete_node(start,next) + n=n+1 + until next==stop + end + return n end - ---[[ldx-- -

Here we replace start by a single variant, First we delete the rest of the -match.

---ldx]]-- - function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex) - -- todo: marks ? - local current = start - local subtables = currentlookup.subtables - if #subtables > 1 then - logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," ")) - end - while current do - if current.id == glyph_code then - local currentchar = current.char - local lookupname = subtables[1] -- only 1 - local replacement = lookuphash[lookupname] - if not replacement then - if trace_bugs then - logwarning("%s: no single hits",cref(kind,chainname,chainlookupname,lookupname,chainindex)) - end - else - replacement = replacement[currentchar] - if not replacement or replacement == "" then - if trace_bugs then - logwarning("%s: no single for %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar)) - end - else - if trace_singles then - logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement)) - end - current.char = replacement - end - end - return head, start, true - elseif current == stop then - break + local current=start + local subtables=currentlookup.subtables + if #subtables>1 then + logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," ")) + end + while current do + if current.id==glyph_code then + local currentchar=current.char + local lookupname=subtables[1] + local replacement=lookuphash[lookupname] + if not replacement then + if trace_bugs then + logwarning("%s: no single hits",cref(kind,chainname,chainlookupname,lookupname,chainindex)) + end + else + replacement=replacement[currentchar] + if not replacement or replacement=="" then + if trace_bugs then + logwarning("%s: no single for %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar)) + end else - current = current.next - end + if trace_singles then + logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement)) + end + current.char=replacement + end + end + return head,start,true + elseif current==stop then + break + else + current=current.next end - return head, start, false + end + return head,start,false end - -chainmores.gsub_single = chainprocs.gsub_single - ---[[ldx-- -

Here we replace start by a sequence of new glyphs. First we delete the rest of -the match.

---ldx]]-- - +chainmores.gsub_single=chainprocs.gsub_single function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - delete_till_stop(start,stop) -- we could pass ignoremarks as #3 .. - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local replacements = lookuphash[lookupname] - if not replacements then - if trace_bugs then - logwarning("%s: no multiple hits",cref(kind,chainname,chainlookupname,lookupname)) - end + delete_till_stop(start,stop) + local startchar=start.char + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local replacements=lookuphash[lookupname] + if not replacements then + if trace_bugs then + logwarning("%s: no multiple hits",cref(kind,chainname,chainlookupname,lookupname)) + end + else + replacements=replacements[startchar] + if not replacements or replacement=="" then + if trace_bugs then + logwarning("%s: no multiple for %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar)) + end else - replacements = replacements[startchar] - if not replacements or replacement == "" then - if trace_bugs then - logwarning("%s: no multiple for %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar)) - end - else - if trace_multiples then - logprocess("%s: replacing %s by multiple characters %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar),gref(replacements)) - end - return multiple_glyphs(head,start,replacements) - end + if trace_multiples then + logprocess("%s: replacing %s by multiple characters %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar),gref(replacements)) + end + return multiple_glyphs(head,start,replacements) end - return head, start, false + end + return head,start,false end - -chainmores.gsub_multiple = chainprocs.gsub_multiple - ---[[ldx-- -

Here we replace start by new glyph. First we delete the rest of the match.

---ldx]]-- - --- char_1 mark_1 -> char_x mark_1 (ignore marks) --- char_1 mark_1 -> char_x - --- to be checked: do we always have just one glyph? --- we can also have alternates for marks --- marks come last anyway --- are there cases where we need to delete the mark - +chainmores.gsub_multiple=chainprocs.gsub_multiple function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - local current = start - local subtables = currentlookup.subtables - local value = featurevalue == true and tfmdata.shared.features[kind] or featurevalue - while current do - if current.id == glyph_code then -- is this check needed? - local currentchar = current.char - local lookupname = subtables[1] - local alternatives = lookuphash[lookupname] - if not alternatives then - if trace_bugs then - logwarning("%s: no alternative hit",cref(kind,chainname,chainlookupname,lookupname)) - end - else - alternatives = alternatives[currentchar] - if alternatives then - local choice = get_alternative_glyph(current,alternatives,value) - if choice then - if trace_alternatives then - logprocess("%s: replacing %s by alternative %s (%s)",cref(kind,chainname,chainlookupname,lookupname),gref(char),gref(choice),choice) - end - start.char = choice - else - if trace_alternatives then - logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),tostring(value),gref(char)) - end - end - elseif trace_bugs then - logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar)) - end - end - return head, start, true - elseif current == stop then - break - else - current = current.next + local current=start + local subtables=currentlookup.subtables + local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue + while current do + if current.id==glyph_code then + local currentchar=current.char + local lookupname=subtables[1] + local alternatives=lookuphash[lookupname] + if not alternatives then + if trace_bugs then + logwarning("%s: no alternative hit",cref(kind,chainname,chainlookupname,lookupname)) + end + else + alternatives=alternatives[currentchar] + if alternatives then + local choice=get_alternative_glyph(current,alternatives,value) + if choice then + if trace_alternatives then + logprocess("%s: replacing %s by alternative %s (%s)",cref(kind,chainname,chainlookupname,lookupname),gref(char),gref(choice),choice) + end + start.char=choice + else + if trace_alternatives then + logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),tostring(value),gref(char)) + end + end + elseif trace_bugs then + logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar)) end + end + return head,start,true + elseif current==stop then + break + else + current=current.next end - return head, start, false + end + return head,start,false end - -chainmores.gsub_alternate = chainprocs.gsub_alternate - ---[[ldx-- -

When we replace ligatures we use a helper that handles the marks. I might change -this function (move code inline and handle the marks by a separate function). We -assume rather stupid ligatures (no complex disc nodes).

---ldx]]-- - +chainmores.gsub_alternate=chainprocs.gsub_alternate function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex) - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local ligatures = lookuphash[lookupname] + local startchar=start.char + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local ligatures=lookuphash[lookupname] + if not ligatures then + if trace_bugs then + logwarning("%s: no ligature hits",cref(kind,chainname,chainlookupname,lookupname,chainindex)) + end + else + ligatures=ligatures[startchar] if not ligatures then - if trace_bugs then - logwarning("%s: no ligature hits",cref(kind,chainname,chainlookupname,lookupname,chainindex)) - end + if trace_bugs then + logwarning("%s: no ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar)) + end else - ligatures = ligatures[startchar] - if not ligatures then - if trace_bugs then - logwarning("%s: no ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar)) - end + local s=start.next + local discfound=false + local last=stop + local nofreplacements=0 + local skipmark=currentlookup.flags[1] + while s do + local id=s.id + if id==disc_code then + s=s.next + discfound=true else - local s = start.next - local discfound = false - local last = stop - local nofreplacements = 0 - local skipmark = currentlookup.flags[1] - while s do - local id = s.id - if id == disc_code then - s = s.next - discfound = true - else - local schar = s.char - if skipmark and marks[schar] then -- marks - s = s.next - else - local lg = ligatures[schar] - if lg then - ligatures, last, nofreplacements = lg, s, nofreplacements + 1 - if s == stop then - break - else - s = s.next - end - else - break - end - end - end - end - local l2 = ligatures.ligature - if l2 then - if chainindex then - stop = last - end - if trace_ligatures then - if start == stop then - logprocess("%s: replacing character %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(l2)) - else - logprocess("%s: replacing character %s upto %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char),gref(l2)) - end - end - start = toligature(kind,lookupname,start,stop,l2,currentlookup.flags[1],discfound) - return head, start, true, nofreplacements - elseif trace_bugs then - if start == stop then - logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar)) - else - logwarning("%s: replacing character %s upto %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char)) - end - end + local schar=s.char + if skipmark and marks[schar] then + s=s.next + else + local lg=ligatures[schar] + if lg then + ligatures,last,nofreplacements=lg,s,nofreplacements+1 + if s==stop then + break + else + s=s.next + end + else + break + end + end + end + end + local l2=ligatures.ligature + if l2 then + if chainindex then + stop=last + end + if trace_ligatures then + if start==stop then + logprocess("%s: replacing character %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(l2)) + else + logprocess("%s: replacing character %s upto %s by ligature %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char),gref(l2)) + end + end + start=toligature(kind,lookupname,start,stop,l2,currentlookup.flags[1],discfound) + return head,start,true,nofreplacements + elseif trace_bugs then + if start==stop then + logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar)) + else + logwarning("%s: replacing character %s upto %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char)) end - end - return head, start, false, 0 -end - -chainmores.gsub_ligature = chainprocs.gsub_ligature - -function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local markanchors = lookuphash[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [start=mark] - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - basechar = base.char - if not marks[basechar] then - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) - end - return head, start, false - end - end - end - local baseanchors = descriptions[basechar].anchors - if baseanchors then - local baseanchors = baseanchors['basechar'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) - if trace_marks then - logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)", - cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) - end - return head, start, true - end - end - end - if trace_bugs then - logwarning("%s, no matching anchors for mark %s and base %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) - end - end - end - elseif trace_bugs then - logwarning("%s: prev node is no char",cref(kind,chainname,chainlookupname,lookupname)) + end + end + end + return head,start,false,0 +end +chainmores.gsub_ligature=chainprocs.gsub_ligature +function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) + local markchar=start.char + if marks[markchar] then + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local markanchors=lookuphash[lookupname] + if markanchors then + markanchors=markanchors[markchar] + end + if markanchors then + local base=start.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + if marks[basechar] then + while true do + base=base.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + basechar=base.char + if not marks[basechar] then + break + end + else + if trace_bugs then + logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) + end + return head,start,false + end + end + end + local baseanchors=descriptions[basechar].anchors + if baseanchors then + local baseanchors=baseanchors['basechar'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%s,%s)", + cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) + end + return head,start,true + end + end end - elseif trace_bugs then - logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) + if trace_bugs then + logwarning("%s, no matching anchors for mark %s and base %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) + end + end end + elseif trace_bugs then + logwarning("%s: prev node is no char",cref(kind,chainname,chainlookupname,lookupname)) + end elseif trace_bugs then - logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) + logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) end - return head, start, false + elseif trace_bugs then + logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) + end + return head,start,false end - function chainprocs.gpos_mark2ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local markanchors = lookuphash[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [optional marks] [start=mark] - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then - basechar = base.char - if not marks[basechar] then - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar) - end - return head, start, false - end - end - end - -- todo: like marks a ligatures hash - local index = start[a_ligacomp] - local baseanchors = descriptions[basechar].anchors - if baseanchors then - local baseanchors = baseanchors['baselig'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - ba = ba[index] - if ba then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) -- index - if trace_marks then - logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)", - cref(kind,chainname,chainlookupname,lookupname),anchor,a or bound,gref(markchar),gref(basechar),index,dx,dy) - end - return head, start, true - end - end - end - end - if trace_bugs then - logwarning("%s: no matching anchors for mark %s and baselig %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) - end - end - end - elseif trace_bugs then - logwarning("feature %s, lookup %s: prev node is no char",kind,lookupname) + local markchar=start.char + if marks[markchar] then + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local markanchors=lookuphash[lookupname] + if markanchors then + markanchors=markanchors[markchar] + end + if markanchors then + local base=start.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + if marks[basechar] then + while true do + base=base.prev + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + basechar=base.char + if not marks[basechar] then + break + end + else + if trace_bugs then + logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar) + end + return head,start,false + end + end + end + local index=start[a_ligacomp] + local baseanchors=descriptions[basechar].anchors + if baseanchors then + local baseanchors=baseanchors['baselig'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + ba=ba[index] + if ba then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%s,%s)", + cref(kind,chainname,chainlookupname,lookupname),anchor,a or bound,gref(markchar),gref(basechar),index,dx,dy) + end + return head,start,true + end + end + end end - elseif trace_bugs then - logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) + if trace_bugs then + logwarning("%s: no matching anchors for mark %s and baselig %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) + end + end end + elseif trace_bugs then + logwarning("feature %s, lookup %s: prev node is no char",kind,lookupname) + end elseif trace_bugs then - logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) + logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) end - return head, start, false + elseif trace_bugs then + logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) + end + return head,start,false end - function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then ---~ local alreadydone = markonce and start[a_markmark] ---~ if not alreadydone then - -- local markanchors = descriptions[markchar].anchors markanchors = markanchors and markanchors.mark - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local markanchors = lookuphash[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [basemark] [start=mark] - local slc = start[a_ligacomp] - if slc then -- a rather messy loop ... needs checking with husayni - while base do - local blc = base[a_ligacomp] - if blc and blc ~= slc then - base = base.prev - else - break - end - end - end - if base and base.id == glyph_code and base.font == currentfont and base.subtype<256 then -- subtype test can go - local basechar = base.char - local baseanchors = descriptions[basechar].anchors - if baseanchors then - baseanchors = baseanchors['basemark'] - if baseanchors then - local al = anchorlookups[lookupname] - for anchor,ba in next, baseanchors do - if al[anchor] then - local ma = markanchors[anchor] - if ma then - local dx, dy, bound = setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) - if trace_marks then - logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)", - cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) - end - return head, start, true - end - end - end - if trace_bugs then - logwarning("%s: no matching anchors for mark %s and basemark %s",gref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) - end - end - end - elseif trace_bugs then - logwarning("%s: prev node is no mark",cref(kind,chainname,chainlookupname,lookupname)) - end - elseif trace_bugs then - logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) + local markchar=start.char + if marks[markchar] then + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local markanchors=lookuphash[lookupname] + if markanchors then + markanchors=markanchors[markchar] + end + if markanchors then + local base=start.prev + local slc=start[a_ligacomp] + if slc then + while base do + local blc=base[a_ligacomp] + if blc and blc~=slc then + base=base.prev + else + break end ---~ elseif trace_marks and trace_details then ---~ logprocess("%s, mark %s is already bound (n=%s), ignoring mark2mark",pref(kind,lookupname),gref(markchar),alreadydone) ---~ end - elseif trace_bugs then - logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) - end - return head, start, false + end + end + if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then + local basechar=base.char + local baseanchors=descriptions[basechar].anchors + if baseanchors then + baseanchors=baseanchors['basemark'] + if baseanchors then + local al=anchorlookups[lookupname] + for anchor,ba in next,baseanchors do + if al[anchor] then + local ma=markanchors[anchor] + if ma then + local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma) + if trace_marks then + logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%s,%s)", + cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy) + end + return head,start,true + end + end + end + if trace_bugs then + logwarning("%s: no matching anchors for mark %s and basemark %s",gref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar)) + end + end + end + elseif trace_bugs then + logwarning("%s: prev node is no mark",cref(kind,chainname,chainlookupname,lookupname)) + end + elseif trace_bugs then + logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar)) + end + elseif trace_bugs then + logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar)) + end + return head,start,false end - function chainprocs.gpos_cursive(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname) - local alreadydone = cursonce and start[a_cursbase] - if not alreadydone then - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local exitanchors = lookuphash[lookupname] - if exitanchors then - exitanchors = exitanchors[startchar] - end - if exitanchors then - local done = false - if marks[startchar] then - if trace_cursive then - logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar)) - end - else - local nxt = start.next - while not done and nxt and nxt.id == glyph_code and nxt.font == currentfont and nxt.subtype<256 do - local nextchar = nxt.char - if marks[nextchar] then - -- should not happen (maybe warning) - nxt = nxt.next - else - local entryanchors = descriptions[nextchar] - if entryanchors then - entryanchors = entryanchors.anchors - if entryanchors then - entryanchors = entryanchors['centry'] - if entryanchors then - local al = anchorlookups[lookupname] - for anchor, entry in next, entryanchors do - if al[anchor] then - local exit = exitanchors[anchor] - if exit then - local dx, dy, bound = setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar]) - if trace_cursive then - logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode) - end - done = true - break - end - end - end - end - end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(startchar)) - onetimemessage(currentfont,startchar,"no entry anchors",report_fonts) + local alreadydone=cursonce and start[a_cursbase] + if not alreadydone then + local startchar=start.char + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local exitanchors=lookuphash[lookupname] + if exitanchors then + exitanchors=exitanchors[startchar] + end + if exitanchors then + local done=false + if marks[startchar] then + if trace_cursive then + logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar)) + end + else + local nxt=start.next + while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do + local nextchar=nxt.char + if marks[nextchar] then + nxt=nxt.next + else + local entryanchors=descriptions[nextchar] + if entryanchors then + entryanchors=entryanchors.anchors + if entryanchors then + entryanchors=entryanchors['centry'] + if entryanchors then + local al=anchorlookups[lookupname] + for anchor,entry in next,entryanchors do + if al[anchor] then + local exit=exitanchors[anchor] + if exit then + local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar]) + if trace_cursive then + logprocess("%s: moving %s to %s cursive (%s,%s) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode) end + done=true break + end end + end end + end + else + onetimemessage(currentfont,startchar,"no entry anchors",report_fonts) end - return head, start, done - else - if trace_cursive and trace_details then - logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone) - end - return head, start, false + break + end end + end + return head,start,done + else + if trace_cursive and trace_details then + logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone) + end + return head,start,false end - return head, start, false + end + return head,start,false end - function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence) - -- untested .. needs checking for the new model - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local kerns = lookuphash[lookupname] + local startchar=start.char + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local kerns=lookuphash[lookupname] + if kerns then + kerns=kerns[startchar] if kerns then - kerns = kerns[startchar] -- needed ? - if kerns then - local dx, dy, w, h = setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar]) - if trace_kerns then - logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h) - end - end + local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar]) + if trace_kerns then + logprocess("%s: shifting single %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h) + end end - return head, start, false + end + return head,start,false end - --- when machines become faster i will make a shared function - function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence) --- logwarning("%s: gpos_pair not yet supported",cref(kind,chainname,chainlookupname)) - local snext = start.next - if snext then - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local kerns = lookuphash[lookupname] - if kerns then - kerns = kerns[startchar] - if kerns then - local lookuptype = lookuptypes[lookupname] - local prev, done = start, false - local factor = tfmdata.parameters.factor - while snext and snext.id == glyph_code and snext.font == currentfont and snext.subtype<256 do - local nextchar = snext.char - local krn = kerns[nextchar] - if not krn and marks[nextchar] then - prev = snext - snext = snext.next - else - if not krn then - -- skip - elseif type(krn) == "table" then - if lookuptype == "pair" then - local a, b = krn[2], krn[3] - if a and #a > 0 then - local startchar = start.char - local x, y, w, h = setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar]) - if trace_kerns then - logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h) - end - end - if b and #b > 0 then - local startchar = start.char - local x, y, w, h = setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar]) - if trace_kerns then - logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h) - end - end - else - report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname)) - local a, b = krn[2], krn[6] - if a and a ~= 0 then - local k = setkern(snext,factor,rlmode,a) - if trace_kerns then - logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar)) - end - end - if b and b ~= 0 then - logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor) - end - end - done = true - elseif krn ~= 0 then - local k = setkern(snext,factor,rlmode,krn) - if trace_kerns then - logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar)) - end - done = true - end - break - end - end - return head, start, done + local snext=start.next + if snext then + local startchar=start.char + local subtables=currentlookup.subtables + local lookupname=subtables[1] + local kerns=lookuphash[lookupname] + if kerns then + kerns=kerns[startchar] + if kerns then + local lookuptype=lookuptypes[lookupname] + local prev,done=start,false + local factor=tfmdata.parameters.factor + while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do + local nextchar=snext.char + local krn=kerns[nextchar] + if not krn and marks[nextchar] then + prev=snext + snext=snext.next + else + if not krn then + elseif type(krn)=="table" then + if lookuptype=="pair" then + local a,b=krn[2],krn[3] + if a and #a>0 then + local startchar=start.char + local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar]) + if trace_kerns then + logprocess("%s: shifting first of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h) + end + end + if b and #b>0 then + local startchar=start.char + local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar]) + if trace_kerns then + logprocess("%s: shifting second of pair %s and %s by (%s,%s) and correction (%s,%s)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h) + end + end + else + report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname)) + local a,b=krn[2],krn[6] + if a and a~=0 then + local k=setkern(snext,factor,rlmode,a) + if trace_kerns then + logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar)) + end + end + if b and b~=0 then + logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor) + end + end + done=true + elseif krn~=0 then + local k=setkern(snext,factor,rlmode,krn) + if trace_kerns then + logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar)) + end + done=true end + break + end end + return head,start,done + end end - return head, start, false + end + return head,start,false end - --- what pointer to return, spec says stop --- to be discussed ... is bidi changer a space? --- elseif char == zwnj and sequence[n][32] then -- brrr - --- somehow l or f is global --- we don't need to pass the currentcontext, saves a bit --- make a slow variant then can be activated but with more tracing - local function show_skip(kind,chainname,char,ck,class) - if ck[9] then - logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s (%s=>%s)",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10]) - else - logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s",cref(kind,chainname),gref(char),class,ck[1],ck[2]) - end + if ck[9] then + logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s (%s=>%s)",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10]) + else + logwarning("%s: skipping char %s (%s) in rule %s, lookuptype %s",cref(kind,chainname),gref(char),class,ck[1],ck[2]) + end end - local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash) - -- local rule, lookuptype, sequence, f, l, lookups = ck[1], ck[2] ,ck[3], ck[4], ck[5], ck[6] - local flags = sequence.flags - local done = false - local skipmark = flags[1] - local skipligature = flags[2] - local skipbase = flags[3] - local someskip = skipmark or skipligature or skipbase -- could be stored in flags for a fast test (hm, flags could be false !) - local markclass = sequence.markclass -- todo, first we need a proper test - local skipped = false - for k=1,#contexts do - local match = true - local current = start - local last = start - local ck = contexts[k] - local seq = ck[3] - local s = #seq - -- f..l = mid string - if s == 1 then - -- never happens - match = current.id == glyph_code and current.font == currentfont and current.subtype<256 and seq[1][current.char] + local flags=sequence.flags + local done=false + local skipmark=flags[1] + local skipligature=flags[2] + local skipbase=flags[3] + local someskip=skipmark or skipligature or skipbase + local markclass=sequence.markclass + local skipped=false + for k=1,#contexts do + local match=true + local current=start + local last=start + local ck=contexts[k] + local seq=ck[3] + local s=#seq + if s==1 then + match=current.id==glyph_code and current.font==currentfont and current.subtype<256 and seq[1][current.char] + else + local f,l=ck[4],ck[5] + if f==1 and f==l then + else + if f==l then else - -- maybe we need a better space check (maybe check for glue or category or combination) - -- we cannot optimize for n=2 because there can be disc nodes - local f, l = ck[4], ck[5] - -- current match - if f == 1 and f == l then -- current only - -- already a hit - -- match = true - else -- before/current/after | before/current | current/after - -- no need to test first hit (to be optimized) - if f == l then -- new, else last out of sync (f is > 1) - -- match = true - else - local n = f + 1 - last = last.next - while n <= l do - if last then - local id = last.id - if id == glyph_code then - if last.font == currentfont and last.subtype<256 then - local char = last.char - local ccd = descriptions[char] - if ccd then - local class = ccd.class - if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then - skipped = true - if trace_skips then - show_skip(kind,chainname,char,ck,class) - end - last = last.next - elseif seq[n][char] then - if n < l then - last = last.next - end - n = n + 1 - else - match = false - break - end - else - match = false - break - end - else - match = false - break - end - elseif id == disc_code then - last = last.next - else - match = false - break - end - else - match = false - break - end - end - end - end - -- before - if match and f > 1 then - local prev = start.prev - if prev then - local n = f-1 - while n >= 1 do - if prev then - local id = prev.id - if id == glyph_code then - if prev.font == currentfont and prev.subtype<256 then -- normal char - local char = prev.char - local ccd = descriptions[char] - if ccd then - local class = ccd.class - if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then - skipped = true - if trace_skips then - show_skip(kind,chainname,char,ck,class) - end - elseif seq[n][char] then - n = n -1 - else - match = false - break - end - else - match = false - break - end - else - match = false - break - end - elseif id == disc_code then - -- skip 'm - elseif seq[n][32] then - n = n -1 - else - match = false - break - end - prev = prev.prev - elseif seq[n][32] then -- somewhat special, as zapfino can have many preceding spaces - n = n -1 - else - match = false - break - end + local n=f+1 + last=last.next + while n<=l do + if last then + local id=last.id + if id==glyph_code then + if last.font==currentfont and last.subtype<256 then + local char=last.char + local ccd=descriptions[char] + if ccd then + local class=ccd.class + if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then + skipped=true + if trace_skips then + show_skip(kind,chainname,char,ck,class) + end + last=last.next + elseif seq[n][char] then + if n l then - local current = last and last.next - if current then - -- removed optimization for s-l == 1, we have to deal with marks anyway - local n = l + 1 - while n <= s do - if current then - local id = current.id - if id == glyph_code then - if current.font == currentfont and current.subtype<256 then -- normal char - local char = current.char - local ccd = descriptions[char] - if ccd then - local class = ccd.class - if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then - skipped = true - if trace_skips then - show_skip(kind,chainname,char,ck,class) - end - elseif seq[n][char] then - n = n + 1 - else - match = false - break - end - else - match = false - break - end - else - match = false - break - end - elseif id == disc_code then - -- skip 'm - elseif seq[n][32] then -- brrr - n = n + 1 - else - match = false - break - end - current = current.next - elseif seq[n][32] then - n = n + 1 - else - match = false - break - end + end + end + end + if match and f>1 then + local prev=start.prev + if prev then + local n=f-1 + while n>=1 do + if prev then + local id=prev.id + if id==glyph_code then + if prev.font==currentfont and prev.subtype<256 then + local char=prev.char + local ccd=descriptions[char] + if ccd then + local class=ccd.class + if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then + skipped=true + if trace_skips then + show_skip(kind,chainname,char,ck,class) + end + elseif seq[n][char] then + n=n -1 + else + match=false + break end - elseif s-l == 1 then - match = seq[s][32] + else + match=false + break + end else - for n=l+1,s do - if not seq[n][32] then - match = false - break - end - end - end + match=false + break + end + elseif id==disc_code then + elseif seq[n][32] then + n=n -1 + else + match=false + break + end + prev=prev.prev + elseif seq[n][32] then + n=n -1 + else + match=false + break end - end - if match then - -- ck == currentcontext - if trace_contexts then - local rule, lookuptype, f, l = ck[1], ck[2], ck[4], ck[5] - local char = start.char - if ck[9] then - logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s (%s=>%s)", - cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype,ck[9],ck[10]) + end + elseif f==2 then + match=seq[1][32] + else + for n=f-1,1 do + if not seq[n][32] then + match=false + break + end + end + end + end + if match and s>l then + local current=last and last.next + if current then + local n=l+1 + while n<=s do + if current then + local id=current.id + if id==glyph_code then + if current.font==currentfont and current.subtype<256 then + local char=current.char + local ccd=descriptions[char] + if ccd then + local class=ccd.class + if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then + skipped=true + if trace_skips then + show_skip(kind,chainname,char,ck,class) + end + elseif seq[n][char] then + n=n+1 + else + match=false + break + end + else + match=false + break + end else - logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s", - cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype) - end + match=false + break + end + elseif id==disc_code then + elseif seq[n][32] then + n=n+1 + else + match=false + break + end + current=current.next + elseif seq[n][32] then + n=n+1 + else + match=false + break end - local chainlookups = ck[6] - if chainlookups then - local nofchainlookups = #chainlookups - -- we can speed this up if needed - if nofchainlookups == 1 then - local chainlookupname = chainlookups[1] - local chainlookup = lookuptable[chainlookupname] - if chainlookup then - local cp = chainprocs[chainlookup.type] - if cp then - head, start, done = cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence) - else - logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type) - end - else -- shouldn't happen - logprocess("%s is not yet supported",cref(kind,chainname,chainlookupname)) - end - else - local i = 1 - repeat - if skipped then - while true do - local char = start.char - local ccd = descriptions[char] - if ccd then - local class = ccd.class - if class == skipmark or class == skipligature or class == skipbase or (markclass and class == "mark" and not markclass[char]) then - start = start.next - else - break - end - else - break - end - end - end - local chainlookupname = chainlookups[i] - local chainlookup = lookuptable[chainlookupname] -- can be false (n matches, nofchainlookups - end + end + elseif s-l==1 then + match=seq[s][32] + else + for n=l+1,s do + if not seq[n][32] then + match=false + break + end + end + end + end + end + if match then + if trace_contexts then + local rule,lookuptype,f,l=ck[1],ck[2],ck[4],ck[5] + local char=start.char + if ck[9] then + logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s (%s=>%s)", + cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype,ck[9],ck[10]) + else + logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %s", + cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype) + end + end + local chainlookups=ck[6] + if chainlookups then + local nofchainlookups=#chainlookups + if nofchainlookups==1 then + local chainlookupname=chainlookups[1] + local chainlookup=lookuptable[chainlookupname] + if chainlookup then + local cp=chainprocs[chainlookup.type] + if cp then + head,start,done=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence) else - local replacements = ck[7] - if replacements then - head, start, done = chainprocs.reversesub(head,start,last,kind,chainname,ck,lookuphash,replacements) -- sequence + logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type) + end + else + logprocess("%s is not yet supported",cref(kind,chainname,chainlookupname)) + end + else + local i=1 + repeat + if skipped then + while true do + local char=start.char + local ccd=descriptions[char] + if ccd then + local class=ccd.class + if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then + start=start.next + else + break + end else - done = true -- can be meant to be skipped - if trace_contexts then - logprocess("%s: skipping match",cref(kind,chainname)) - end - end + break + end + end + end + local chainlookupname=chainlookups[i] + local chainlookup=lookuptable[chainlookupname] + local cp=chainlookup and chainmores[chainlookup.type] + if cp then + local ok,n + head,start,ok,n=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence) + if ok then + done=true + i=i+(n or 1) + else + i=i+1 + end + else + i=i+1 end + start=start.next + until i>nofchainlookups + end + else + local replacements=ck[7] + if replacements then + head,start,done=chainprocs.reversesub(head,start,last,kind,chainname,ck,lookuphash,replacements) + else + done=true + if trace_contexts then + logprocess("%s: skipping match",cref(kind,chainname)) + end end + end end - return head, start, done + end + return head,start,done end - --- Because we want to keep this elsewhere (an because speed is less an issue) we --- pass the font id so that the verbose variant can access the relevant helper tables. - -local verbose_handle_contextchain = function(font,...) - logwarning("no verbose handler installed, reverting to 'normal'") - otf.setcontextchain() - return normal_handle_contextchain(...) +local verbose_handle_contextchain=function(font,...) + logwarning("no verbose handler installed, reverting to 'normal'") + otf.setcontextchain() + return normal_handle_contextchain(...) end - -otf.chainhandlers = { - normal = normal_handle_contextchain, - verbose = verbose_handle_contextchain, +otf.chainhandlers={ + normal=normal_handle_contextchain, + verbose=verbose_handle_contextchain, } - function otf.setcontextchain(method) - if not method or method == "normal" or not otf.chainhandlers[method] then - if handlers.contextchain then -- no need for a message while making the format - logwarning("installing normal contextchain handler") - end - handlers.contextchain = normal_handle_contextchain - else - logwarning("installing contextchain handler '%s'",method) - local handler = otf.chainhandlers[method] - handlers.contextchain = function(...) - return handler(currentfont,...) -- hm, get rid of ... - end - end - handlers.gsub_context = handlers.contextchain - handlers.gsub_contextchain = handlers.contextchain - handlers.gsub_reversecontextchain = handlers.contextchain - handlers.gpos_contextchain = handlers.contextchain - handlers.gpos_context = handlers.contextchain + if not method or method=="normal" or not otf.chainhandlers[method] then + if handlers.contextchain then + logwarning("installing normal contextchain handler") + end + handlers.contextchain=normal_handle_contextchain + else + logwarning("installing contextchain handler '%s'",method) + local handler=otf.chainhandlers[method] + handlers.contextchain=function(...) + return handler(currentfont,...) + end + end + handlers.gsub_context=handlers.contextchain + handlers.gsub_contextchain=handlers.contextchain + handlers.gsub_reversecontextchain=handlers.contextchain + handlers.gpos_contextchain=handlers.contextchain + handlers.gpos_context=handlers.contextchain end - otf.setcontextchain() - -local missing = { } -- we only report once - +local missing={} local function logprocess(...) - if trace_steps then - registermessage(...) - end - report_process(...) + if trace_steps then + registermessage(...) + end + report_process(...) end - -local logwarning = report_process - +local logwarning=report_process local function report_missing_cache(typ,lookup) - local f = missing[currentfont] if not f then f = { } missing[currentfont] = f end - local t = f[typ] if not t then t = { } f[typ] = t end - if not t[lookup] then - t[lookup] = true - logwarning("missing cache for lookup %s of type %s in font %s (%s)",lookup,typ,currentfont,tfmdata.properties.fullname) - end -end - -local resolved = { } -- we only resolve a font,script,language pair once - --- todo: pass all these 'locals' in a table - -local lookuphashes = { } - -setmetatableindex(lookuphashes, function(t,font) - local lookuphash = fontdata[font].resources.lookuphash - if not lookuphash or not next(lookuphash) then - lookuphash = false - end - t[font] = lookuphash - return lookuphash + local f=missing[currentfont] if not f then f={} missing[currentfont]=f end + local t=f[typ] if not t then t={} f[typ]=t end + if not t[lookup] then + t[lookup]=true + logwarning("missing cache for lookup %s of type %s in font %s (%s)",lookup,typ,currentfont,tfmdata.properties.fullname) + end +end +local resolved={} +local lookuphashes={} +setmetatableindex(lookuphashes,function(t,font) + local lookuphash=fontdata[font].resources.lookuphash + if not lookuphash or not next(lookuphash) then + lookuphash=false + end + t[font]=lookuphash + return lookuphash end) - --- fonts.hashes.lookups = lookuphashes - -local autofeatures = fonts.analyzers.features -- was: constants - +local autofeatures=fonts.analyzers.features local function initialize(sequence,script,language,enabled) - local features = sequence.features - if features then - for kind, scripts in next, features do - local valid = enabled[kind] - if valid then - local languages = scripts[script] or scripts[wildcard] - if languages and (languages[language] or languages[wildcard]) then - return { valid, autofeatures[kind] or false, sequence.chain or 0, kind, sequence } - end - end - end - end - return false -end - -function otf.dataset(tfmdata,font) -- generic variant, overloaded in context - local shared = tfmdata.shared - local properties = tfmdata.properties - local language = properties.language or "dflt" - local script = properties.script or "dflt" - local enabled = shared.features - local res = resolved[font] - if not res then - res = { } - resolved[font] = res - end - local rs = res[script] - if not rs then - rs = { } - res[script] = rs - end - local rl = rs[language] - if not rl then - rl = { - -- indexed but we can also add specific data by key - } - rs[language] = rl - local sequences = tfmdata.resources.sequences - setmetatableindex(rl, function(t,k) - if type(k) == "number" then - local v = enabled and initialize(sequences[k],script,language,enabled) - t[k] = v - return v - end - end) - end - return rl + local features=sequence.features + if features then + for kind,scripts in next,features do + local valid=enabled[kind] + if valid then + local languages=scripts[script] or scripts[wildcard] + if languages and (languages[language] or languages[wildcard]) then + return { valid,autofeatures[kind] or false,sequence.chain or 0,kind,sequence } + end + end + end + end + return false +end +function otf.dataset(tfmdata,font) + local shared=tfmdata.shared + local properties=tfmdata.properties + local language=properties.language or "dflt" + local script=properties.script or "dflt" + local enabled=shared.features + local res=resolved[font] + if not res then + res={} + resolved[font]=res + end + local rs=res[script] + if not rs then + rs={} + res[script]=rs + end + local rl=rs[language] + if not rl then + rl={ + } + rs[language]=rl + local sequences=tfmdata.resources.sequences + setmetatableindex(rl,function(t,k) + if type(k)=="number" then + local v=enabled and initialize(sequences[k],script,language,enabled) + t[k]=v + return v + end + end) + end + return rl end - --- elseif id == glue_code then --- if p[5] then -- chain --- local pc = pp[32] --- if pc then --- start, ok = start, false -- p[1](start,kind,p[2],pc,p[3],p[4]) --- if ok then --- done = true --- end --- if start then start = start.next end --- else --- start = start.next --- end --- else --- start = start.next --- end - --- there will be a new direction parser (pre-parsed etc) - local function featuresprocessor(head,font,attr) - - local lookuphash = lookuphashes[font] -- we can also check sequences here - - if not lookuphash then - return head, false - end - - if trace_steps then - checkstep(head) - end - - tfmdata = fontdata[font] - descriptions = tfmdata.descriptions - characters = tfmdata.characters - resources = tfmdata.resources - - marks = resources.marks - anchorlookups = resources.lookup_to_anchor - lookuptable = resources.lookups - lookuptypes = resources.lookuptypes - - currentfont = font - rlmode = 0 - - local sequences = resources.sequences - local done = false - local datasets = otf.dataset(tfmdata,font,attr) - - local dirstack = { } -- could move outside function - - -- We could work on sub start-stop ranges instead but I wonder if there is that - -- much speed gain (experiments showed that it made not much sense) and we need - -- to keep track of directions anyway. Also at some point I want to play with - -- font interactions and then we do need the full sweeps. - - -- Keeping track of the headnode is needed for devanagari (I generalized it a bit - -- so that multiple cases are also covered.) - - for s=1,#sequences do - local dataset = datasets[s] - if dataset then - featurevalue = dataset[1] -- todo: pass to function instead of using a global - if featurevalue then - local sequence = sequences[s] -- also dataset[5] - local rlparmode = 0 - local topstack = 0 - local success = false - local attribute = dataset[2] - local chain = dataset[3] -- sequence.chain or 0 - local typ = sequence.type - local subtables = sequence.subtables - if chain < 0 then - -- this is a limited case, no special treatments like 'init' etc - local handler = handlers[typ] - -- we need to get rid of this slide! probably no longer needed in latest luatex - local start = find_node_tail(head) -- slow (we can store tail because there's always a skip at the end): todo - while start do - local id = start.id - if id == glyph_code then - if start.font == font and start.subtype<256 then - local a = start[0] - if a then - a = a == attr - else - a = true - end - if a then - for i=1,#subtables do - local lookupname = subtables[i] - local lookupcache = lookuphash[lookupname] - if lookupcache then - local lookupmatch = lookupcache[start.char] - if lookupmatch then - head, start, success = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i) - if success then - break - end - end - else - report_missing_cache(typ,lookupname) - end - end - if start then start = start.prev end - else - start = start.prev - end - else - start = start.prev - end - else - start = start.prev - end - end + local lookuphash=lookuphashes[font] + if not lookuphash then + return head,false + end + if trace_steps then + checkstep(head) + end + tfmdata=fontdata[font] + descriptions=tfmdata.descriptions + characters=tfmdata.characters + resources=tfmdata.resources + marks=resources.marks + anchorlookups=resources.lookup_to_anchor + lookuptable=resources.lookups + lookuptypes=resources.lookuptypes + currentfont=font + rlmode=0 + local sequences=resources.sequences + local done=false + local datasets=otf.dataset(tfmdata,font,attr) + local dirstack={} + for s=1,#sequences do + local dataset=datasets[s] + if dataset then + featurevalue=dataset[1] + if featurevalue then + local sequence=sequences[s] + local rlparmode=0 + local topstack=0 + local success=false + local attribute=dataset[2] + local chain=dataset[3] + local typ=sequence.type + local subtables=sequence.subtables + if chain<0 then + local handler=handlers[typ] + local start=find_node_tail(head) + while start do + local id=start.id + if id==glyph_code then + if start.font==font and start.subtype<256 then + local a=start[0] + if a then + a=a==attr else - local handler = handlers[typ] - local ns = #subtables - local start = head -- local ? - rlmode = 0 -- to be checked ? - if ns == 1 then -- happens often - local lookupname = subtables[1] - local lookupcache = lookuphash[lookupname] - if not lookupcache then -- also check for empty cache - report_missing_cache(typ,lookupname) - else - while start do - local id = start.id - if id == glyph_code then - if start.font == font and start.subtype<256 then - local a = start[0] - if a then - a = (a == attr) and (not attribute or start[a_state] == attribute) - else - a = not attribute or start[a_state] == attribute - end - if a then - local lookupmatch = lookupcache[start.char] - if lookupmatch then - -- sequence kan weg - local ok - head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1) - if ok then - success = true - end - end - if start then start = start.next end - else - start = start.next - end - else - start = start.next - end - elseif id == whatsit_code then -- will be function - local subtype = start.subtype - if subtype == dir_code then - local dir = start.dir - if dir == "+TRT" or dir == "+TLT" then - topstack = topstack + 1 - dirstack[topstack] = dir - elseif dir == "-TRT" or dir == "-TLT" then - topstack = topstack - 1 - end - local newdir = dirstack[topstack] - if newdir == "+TRT" then - rlmode = -1 - elseif newdir == "+TLT" then - rlmode = 1 - else - rlmode = rlparmode - end - if trace_directions then - report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode) - end - elseif subtype == localpar_code then - local dir = start.dir - if dir == "TRT" then - rlparmode = -1 - elseif dir == "TLT" then - rlparmode = 1 - else - rlparmode = 0 - end - rlmode = rlparmode - if trace_directions then - report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode) - end - end - start = start.next - else - start = start.next - end - end + a=true + end + if a then + for i=1,#subtables do + local lookupname=subtables[i] + local lookupcache=lookuphash[lookupname] + if lookupcache then + local lookupmatch=lookupcache[start.char] + if lookupmatch then + head,start,success=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i) + if success then + break end + end else - while start do - local id = start.id - if id == glyph_code then - if start.font == font and start.subtype<256 then - local a = start[0] - if a then - a = (a == attr) and (not attribute or start[a_state] == attribute) - else - a = not attribute or start[a_state] == attribute - end - if a then - for i=1,ns do - local lookupname = subtables[i] - local lookupcache = lookuphash[lookupname] - if lookupcache then - local lookupmatch = lookupcache[start.char] - if lookupmatch then - -- we could move all code inline but that makes things even more unreadable - local ok - head, start, ok = handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i) - if ok then - success = true - break - end - end - else - report_missing_cache(typ,lookupname) - end - end - if start then start = start.next end - else - start = start.next - end - else - start = start.next - end - elseif id == whatsit_code then - local subtype = start.subtype - if subtype == dir_code then - local dir = start.dir - if dir == "+TRT" or dir == "+TLT" then - topstack = topstack + 1 - dirstack[topstack] = dir - elseif dir == "-TRT" or dir == "-TLT" then - topstack = topstack - 1 - end - local newdir = dirstack[topstack] - if newdir == "+TRT" then - rlmode = -1 - elseif newdir == "+TLT" then - rlmode = 1 - else - rlmode = rlparmode - end - if trace_directions then - report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode) - end - elseif subtype == localpar_code then - local dir = start.dir - if dir == "TRT" then - rlparmode = -1 - elseif dir == "TLT" then - rlparmode = 1 - else - rlparmode = 0 - end - rlmode = rlparmode - if trace_directions then - report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode) - end - end - start = start.next - else - start = start.next - end - end + report_missing_cache(typ,lookupname) end + end + if start then start=start.prev end + else + start=start.prev end - if success then - done = true - end - if trace_steps then -- ? - registerstep(head) - end - end - end - end - return head, done -end - -local function generic(lookupdata,lookupname,unicode,lookuphash) - local target = lookuphash[lookupname] - if target then - target[unicode] = lookupdata - else - lookuphash[lookupname] = { [unicode] = lookupdata } - end -end - -local action = { - - substitution = generic, - multiple = generic, - alternate = generic, - position = generic, - - ligature = function(lookupdata,lookupname,unicode,lookuphash) - local target = lookuphash[lookupname] - if not target then - target = { } - lookuphash[lookupname] = target - end - for i=1,#lookupdata do - local li = lookupdata[i] - local tu = target[li] - if not tu then - tu = { } - target[li] = tu + else + start=start.prev + end + else + start=start.prev end - target = tu - end - target.ligature = unicode - end, - - pair = function(lookupdata,lookupname,unicode,lookuphash) - local target = lookuphash[lookupname] - if not target then - target = { } - lookuphash[lookupname] = target - end - local others = target[unicode] - local paired = lookupdata[1] - if others then - others[paired] = lookupdata + end else - others = { [paired] = lookupdata } - target[unicode] = others - end - end, - -} - -local function prepare_lookups(tfmdata) - - local rawdata = tfmdata.shared.rawdata - local resources = rawdata.resources - local lookuphash = resources.lookuphash - local anchor_to_lookup = resources.anchor_to_lookup - local lookup_to_anchor = resources.lookup_to_anchor - local lookuptypes = resources.lookuptypes - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - - -- we cannot free the entries in the descriptions as sometimes we access - -- then directly (for instance anchors) ... selectively freeing does save - -- much memory as it's only a reference to a table and the slot in the - -- description hash is not freed anyway - - for unicode, character in next, characters do -- we cannot loop over descriptions ! - - local description = descriptions[unicode] - - if description then - - local lookups = description.slookups - if lookups then - for lookupname, lookupdata in next, lookups do - action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash) - end - end - - local lookups = description.mlookups - if lookups then - for lookupname, lookuplist in next, lookups do - local lookuptype = lookuptypes[lookupname] - for l=1,#lookuplist do - local lookupdata = lookuplist[l] - action[lookuptype](lookupdata,lookupname,unicode,lookuphash) + local handler=handlers[typ] + local ns=#subtables + local start=head + rlmode=0 + if ns==1 then + local lookupname=subtables[1] + local lookupcache=lookuphash[lookupname] + if not lookupcache then + report_missing_cache(typ,lookupname) + else + while start do + local id=start.id + if id==glyph_code then + if start.font==font and start.subtype<256 then + local a=start[0] + if a then + a=(a==attr) and (not attribute or start[a_state]==attribute) + else + a=not attribute or start[a_state]==attribute + end + if a then + local lookupmatch=lookupcache[start.char] + if lookupmatch then + local ok + head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1) + if ok then + success=true + end + end + if start then start=start.next end + else + start=start.next + end +elseif id==math_code then + start=endofmath(start).next + else + start=start.next + end + elseif id==whatsit_code then + local subtype=start.subtype + if subtype==dir_code then + local dir=start.dir + if dir=="+TRT" or dir=="+TLT" then + topstack=topstack+1 + dirstack[topstack]=dir + elseif dir=="-TRT" or dir=="-TLT" then + topstack=topstack-1 + end + local newdir=dirstack[topstack] + if newdir=="+TRT" then + rlmode=-1 + elseif newdir=="+TLT" then + rlmode=1 + else + rlmode=rlparmode end - end - end - - local list = description.kerns - if list then - for lookup, krn in next, list do -- ref to glyph, saves lookup - local target = lookuphash[lookup] - if target then - target[unicode] = krn + if trace_directions then + report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode) + end + elseif subtype==localpar_code then + local dir=start.dir + if dir=="TRT" then + rlparmode=-1 + elseif dir=="TLT" then + rlparmode=1 else - lookuphash[lookup] = { [unicode] = krn } + rlparmode=0 end - end - end - - local list = description.anchors - if list then - for typ, anchors in next, list do -- types - if typ == "mark" or typ == "cexit" then -- or entry? - for name, anchor in next, anchors do - local lookups = anchor_to_lookup[name] - if lookups then - for lookup, _ in next, lookups do - local target = lookuphash[lookup] - if target then - target[unicode] = anchors - else - lookuphash[lookup] = { [unicode] = anchors } - end - end - end - end + rlmode=rlparmode + if trace_directions then + report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode) end - end - end - - end - - end - + end + start=start.next +elseif id==math_code then + start=endofmath(start).next + else + start=start.next + end + end + end + else + while start do + local id=start.id + if id==glyph_code then + if start.font==font and start.subtype<256 then + local a=start[0] + if a then + a=(a==attr) and (not attribute or start[a_state]==attribute) + else + a=not attribute or start[a_state]==attribute + end + if a then + for i=1,ns do + local lookupname=subtables[i] + local lookupcache=lookuphash[lookupname] + if lookupcache then + local lookupmatch=lookupcache[start.char] + if lookupmatch then + local ok + head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i) + if ok then + success=true + break + end + end + else + report_missing_cache(typ,lookupname) + end + end + if start then start=start.next end + else + start=start.next + end + else + start=start.next + end + elseif id==whatsit_code then + local subtype=start.subtype + if subtype==dir_code then + local dir=start.dir + if dir=="+TRT" or dir=="+TLT" then + topstack=topstack+1 + dirstack[topstack]=dir + elseif dir=="-TRT" or dir=="-TLT" then + topstack=topstack-1 + end + local newdir=dirstack[topstack] + if newdir=="+TRT" then + rlmode=-1 + elseif newdir=="+TLT" then + rlmode=1 + else + rlmode=rlparmode + end + if trace_directions then + report_process("directions after txtdir %s: txtdir=%s:%s, parmode=%s, txtmode=%s",dir,topstack,newdir or "unset",rlparmode,rlmode) + end + elseif subtype==localpar_code then + local dir=start.dir + if dir=="TRT" then + rlparmode=-1 + elseif dir=="TLT" then + rlparmode=1 + else + rlparmode=0 + end + rlmode=rlparmode + if trace_directions then + report_process("directions after pardir %s: parmode=%s, txtmode=%s",dir,rlparmode,rlmode) + end + end + start=start.next +elseif id==math_code then + start=endofmath(start).next + else + start=start.next + end + end + end + end + if success then + done=true + end + if trace_steps then + registerstep(head) + end + end + end + end + return head,done end - -local function split(replacement,original) - local result = { } - for i=1,#replacement do - result[original[i]] = replacement[i] +local function generic(lookupdata,lookupname,unicode,lookuphash) + local target=lookuphash[lookupname] + if target then + target[unicode]=lookupdata + else + lookuphash[lookupname]={ [unicode]=lookupdata } + end +end +local action={ + substitution=generic, + multiple=generic, + alternate=generic, + position=generic, + ligature=function(lookupdata,lookupname,unicode,lookuphash) + local target=lookuphash[lookupname] + if not target then + target={} + lookuphash[lookupname]=target + end + for i=1,#lookupdata do + local li=lookupdata[i] + local tu=target[li] + if not tu then + tu={} + target[li]=tu + end + target=tu + end + target.ligature=unicode + end, + pair=function(lookupdata,lookupname,unicode,lookuphash) + local target=lookuphash[lookupname] + if not target then + target={} + lookuphash[lookupname]=target end - return result + local others=target[unicode] + local paired=lookupdata[1] + if others then + others[paired]=lookupdata + else + others={ [paired]=lookupdata } + target[unicode]=others + end + end, +} +local function prepare_lookups(tfmdata) + local rawdata=tfmdata.shared.rawdata + local resources=rawdata.resources + local lookuphash=resources.lookuphash + local anchor_to_lookup=resources.anchor_to_lookup + local lookup_to_anchor=resources.lookup_to_anchor + local lookuptypes=resources.lookuptypes + local characters=tfmdata.characters + local descriptions=tfmdata.descriptions + for unicode,character in next,characters do + local description=descriptions[unicode] + if description then + local lookups=description.slookups + if lookups then + for lookupname,lookupdata in next,lookups do + action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash) + end + end + local lookups=description.mlookups + if lookups then + for lookupname,lookuplist in next,lookups do + local lookuptype=lookuptypes[lookupname] + for l=1,#lookuplist do + local lookupdata=lookuplist[l] + action[lookuptype](lookupdata,lookupname,unicode,lookuphash) + end + end + end + local list=description.kerns + if list then + for lookup,krn in next,list do + local target=lookuphash[lookup] + if target then + target[unicode]=krn + else + lookuphash[lookup]={ [unicode]=krn } + end + end + end + local list=description.anchors + if list then + for typ,anchors in next,list do + if typ=="mark" or typ=="cexit" then + for name,anchor in next,anchors do + local lookups=anchor_to_lookup[name] + if lookups then + for lookup,_ in next,lookups do + local target=lookuphash[lookup] + if target then + target[unicode]=anchors + else + lookuphash[lookup]={ [unicode]=anchors } + end + end + end + end + end + end + end + end + end end - -local valid = { - coverage = { chainsub = true, chainpos = true, contextsub = true }, - reversecoverage = { reversesub = true }, - glyphs = { chainsub = true, chainpos = true }, +local function split(replacement,original) + local result={} + for i=1,#replacement do + result[original[i]]=replacement[i] + end + return result +end +local valid={ + coverage={ chainsub=true,chainpos=true,contextsub=true }, + reversecoverage={ reversesub=true }, + glyphs={ chainsub=true,chainpos=true }, } - local function prepare_contextchains(tfmdata) - local rawdata = tfmdata.shared.rawdata - local resources = rawdata.resources - local lookuphash = resources.lookuphash - local lookups = rawdata.lookups - if lookups then - for lookupname, lookupdata in next, rawdata.lookups do - local lookuptype = lookupdata.type - if lookuptype then - local rules = lookupdata.rules - if rules then - local format = lookupdata.format - local validformat = valid[format] - if not validformat then - report_prepare("unsupported format %s",format) - elseif not validformat[lookuptype] then - -- todo: dejavu-serif has one (but i need to see what use it has) - report_prepare("unsupported %s %s for %s",format,lookuptype,lookupname) - else - local contexts = lookuphash[lookupname] - if not contexts then - contexts = { } - lookuphash[lookupname] = contexts - end - local t, nt = { }, 0 - for nofrules=1,#rules do - local rule = rules[nofrules] - local current = rule.current - local before = rule.before - local after = rule.after - local replacements = rule.replacements - local sequence = { } - local nofsequences = 0 - -- Wventually we can store start, stop and sequence in the cached file - -- but then less sharing takes place so best not do that without a lot - -- of profiling so let's forget about it. - if before then - for n=1,#before do - nofsequences = nofsequences + 1 - sequence[nofsequences] = before[n] - end - end - local start = nofsequences + 1 - for n=1,#current do - nofsequences = nofsequences + 1 - sequence[nofsequences] = current[n] - end - local stop = nofsequences - if after then - for n=1,#after do - nofsequences = nofsequences + 1 - sequence[nofsequences] = after[n] - end - end - if sequence[1] then - -- Replacements only happen with reverse lookups as they are single only. We - -- could pack them into current (replacement value instead of true) and then - -- use sequence[start] instead but it's somewhat ugly. - nt = nt + 1 - t[nt] = { nofrules, lookuptype, sequence, start, stop, rule.lookups, replacements } - for unic, _ in next, sequence[start] do - local cu = contexts[unic] - if not cu then - contexts[unic] = t - end - end - end - end - end - else - -- no rules - end - else - report_prepare("missing lookuptype for %s",lookupname) - end - end - end -end - --- we can consider lookuphash == false (initialized but empty) vs lookuphash == table - -local function featuresinitializer(tfmdata,value) - if true then -- value then - -- beware we need to use the topmost properties table - local rawdata = tfmdata.shared.rawdata - local properties = rawdata.properties - if not properties.initialized then - local starttime = trace_preparing and os.clock() - local resources = rawdata.resources - resources.lookuphash = resources.lookuphash or { } - prepare_contextchains(tfmdata) - prepare_lookups(tfmdata) - properties.initialized = true - if trace_preparing then - report_prepare("preparation time is %0.3f seconds for %s",os.clock()-starttime,tfmdata.properties.fullname or "?") - end + local rawdata=tfmdata.shared.rawdata + local resources=rawdata.resources + local lookuphash=resources.lookuphash + local lookups=rawdata.lookups + if lookups then + for lookupname,lookupdata in next,rawdata.lookups do + local lookuptype=lookupdata.type + if lookuptype then + local rules=lookupdata.rules + if rules then + local format=lookupdata.format + local validformat=valid[format] + if not validformat then + report_prepare("unsupported format %s",format) + elseif not validformat[lookuptype] then + report_prepare("unsupported %s %s for %s",format,lookuptype,lookupname) + else + local contexts=lookuphash[lookupname] + if not contexts then + contexts={} + lookuphash[lookupname]=contexts + end + local t,nt={},0 + for nofrules=1,#rules do + local rule=rules[nofrules] + local current=rule.current + local before=rule.before + local after=rule.after + local replacements=rule.replacements + local sequence={} + local nofsequences=0 + if before then + for n=1,#before do + nofsequences=nofsequences+1 + sequence[nofsequences]=before[n] + end + end + local start=nofsequences+1 + for n=1,#current do + nofsequences=nofsequences+1 + sequence[nofsequences]=current[n] + end + local stop=nofsequences + if after then + for n=1,#after do + nofsequences=nofsequences+1 + sequence[nofsequences]=after[n] + end + end + if sequence[1] then + nt=nt+1 + t[nt]={ nofrules,lookuptype,sequence,start,stop,rule.lookups,replacements } + for unic,_ in next,sequence[start] do + local cu=contexts[unic] + if not cu then + contexts[unic]=t + end + end + end + end + end + else end + else + report_prepare("missing lookuptype for %s",lookupname) + end end + end end - -registerotffeature { - name = "features", - description = "features", - default = true, - initializers = { - position = 1, - node = featuresinitializer, - }, - processors = { - node = featuresprocessor, - } -} - --- This can be used for extra handlers, but should be used with care! - -otf.handlers = handlers - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luatex-fonts-chr'] = { - version = 1.001, - comment = "companion to luatex-fonts.lua", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() +local function featuresinitializer(tfmdata,value) + if true then + local rawdata=tfmdata.shared.rawdata + local properties=rawdata.properties + if not properties.initialized then + local starttime=trace_preparing and os.clock() + local resources=rawdata.resources + resources.lookuphash=resources.lookuphash or {} + prepare_contextchains(tfmdata) + prepare_lookups(tfmdata) + properties.initialized=true + if trace_preparing then + report_prepare("preparation time is %0.3f seconds for %s",os.clock()-starttime,tfmdata.properties.fullname or "?") + end + end + end end - -characters = characters or { } -characters.categories = { - [0x0300]="mn", - [0x0301]="mn", - [0x0302]="mn", - [0x0303]="mn", - [0x0304]="mn", - [0x0305]="mn", - [0x0306]="mn", - [0x0307]="mn", - [0x0308]="mn", - [0x0309]="mn", - [0x030A]="mn", - [0x030B]="mn", - [0x030C]="mn", - [0x030D]="mn", - [0x030E]="mn", - [0x030F]="mn", - [0x0310]="mn", - [0x0311]="mn", - [0x0312]="mn", - [0x0313]="mn", - [0x0314]="mn", - [0x0315]="mn", - [0x0316]="mn", - [0x0317]="mn", - [0x0318]="mn", - [0x0319]="mn", - [0x031A]="mn", - [0x031B]="mn", - [0x031C]="mn", - [0x031D]="mn", - [0x031E]="mn", - [0x031F]="mn", - [0x0320]="mn", - [0x0321]="mn", - [0x0322]="mn", - [0x0323]="mn", - [0x0324]="mn", - [0x0325]="mn", - [0x0326]="mn", - [0x0327]="mn", - [0x0328]="mn", - [0x0329]="mn", - [0x032A]="mn", - [0x032B]="mn", - [0x032C]="mn", - [0x032D]="mn", - [0x032E]="mn", - [0x032F]="mn", - [0x0330]="mn", - [0x0331]="mn", - [0x0332]="mn", - [0x0333]="mn", - [0x0334]="mn", - [0x0335]="mn", - [0x0336]="mn", - [0x0337]="mn", - [0x0338]="mn", - [0x0339]="mn", - [0x033A]="mn", - [0x033B]="mn", - [0x033C]="mn", - [0x033D]="mn", - [0x033E]="mn", - [0x033F]="mn", - [0x0340]="mn", - [0x0341]="mn", - [0x0342]="mn", - [0x0343]="mn", - [0x0344]="mn", - [0x0345]="mn", - [0x0346]="mn", - [0x0347]="mn", - [0x0348]="mn", - [0x0349]="mn", - [0x034A]="mn", - [0x034B]="mn", - [0x034C]="mn", - [0x034D]="mn", - [0x034E]="mn", - [0x034F]="mn", - [0x0350]="mn", - [0x0351]="mn", - [0x0352]="mn", - [0x0353]="mn", - [0x0354]="mn", - [0x0355]="mn", - [0x0356]="mn", - [0x0357]="mn", - [0x0358]="mn", - [0x0359]="mn", - [0x035A]="mn", - [0x035B]="mn", - [0x035C]="mn", - [0x035D]="mn", - [0x035E]="mn", - [0x035F]="mn", - [0x0360]="mn", - [0x0361]="mn", - [0x0362]="mn", - [0x0363]="mn", - [0x0364]="mn", - [0x0365]="mn", - [0x0366]="mn", - [0x0367]="mn", - [0x0368]="mn", - [0x0369]="mn", - [0x036A]="mn", - [0x036B]="mn", - [0x036C]="mn", - [0x036D]="mn", - [0x036E]="mn", - [0x036F]="mn", - [0x0483]="mn", - [0x0484]="mn", - [0x0485]="mn", - [0x0486]="mn", - [0x0591]="mn", - [0x0592]="mn", - [0x0593]="mn", - [0x0594]="mn", - [0x0595]="mn", - [0x0596]="mn", - [0x0597]="mn", - [0x0598]="mn", - [0x0599]="mn", - [0x059A]="mn", - [0x059B]="mn", - [0x059C]="mn", - [0x059D]="mn", - [0x059E]="mn", - [0x059F]="mn", - [0x05A0]="mn", - [0x05A1]="mn", - [0x05A2]="mn", - [0x05A3]="mn", - [0x05A4]="mn", - [0x05A5]="mn", - [0x05A6]="mn", - [0x05A7]="mn", - [0x05A8]="mn", - [0x05A9]="mn", - [0x05AA]="mn", - [0x05AB]="mn", - [0x05AC]="mn", - [0x05AD]="mn", - [0x05AE]="mn", - [0x05AF]="mn", - [0x05B0]="mn", - [0x05B1]="mn", - [0x05B2]="mn", - [0x05B3]="mn", - [0x05B4]="mn", - [0x05B5]="mn", - [0x05B6]="mn", - [0x05B7]="mn", - [0x05B8]="mn", - [0x05B9]="mn", - [0x05BA]="mn", - [0x05BB]="mn", - [0x05BC]="mn", - [0x05BD]="mn", - [0x05BF]="mn", - [0x05C1]="mn", - [0x05C2]="mn", - [0x05C4]="mn", - [0x05C5]="mn", - [0x05C7]="mn", - [0x0610]="mn", - [0x0611]="mn", - [0x0612]="mn", - [0x0613]="mn", - [0x0614]="mn", - [0x0615]="mn", - [0x064B]="mn", - [0x064C]="mn", - [0x064D]="mn", - [0x064E]="mn", - [0x064F]="mn", - [0x0650]="mn", - [0x0651]="mn", - [0x0652]="mn", - [0x0653]="mn", - [0x0654]="mn", - [0x0655]="mn", - [0x0656]="mn", - [0x0657]="mn", - [0x0658]="mn", - [0x0659]="mn", - [0x065A]="mn", - [0x065B]="mn", - [0x065C]="mn", - [0x065D]="mn", - [0x065E]="mn", - [0x0670]="mn", - [0x06D6]="mn", - [0x06D7]="mn", - [0x06D8]="mn", - [0x06D9]="mn", - [0x06DA]="mn", - [0x06DB]="mn", - [0x06DC]="mn", - [0x06DF]="mn", - [0x06E0]="mn", - [0x06E1]="mn", - [0x06E2]="mn", - [0x06E3]="mn", - [0x06E4]="mn", - [0x06E7]="mn", - [0x06E8]="mn", - [0x06EA]="mn", - [0x06EB]="mn", - [0x06EC]="mn", - [0x06ED]="mn", - [0x0711]="mn", - [0x0730]="mn", - [0x0731]="mn", - [0x0732]="mn", - [0x0733]="mn", - [0x0734]="mn", - [0x0735]="mn", - [0x0736]="mn", - [0x0737]="mn", - [0x0738]="mn", - [0x0739]="mn", - [0x073A]="mn", - [0x073B]="mn", - [0x073C]="mn", - [0x073D]="mn", - [0x073E]="mn", - [0x073F]="mn", - [0x0740]="mn", - [0x0741]="mn", - [0x0742]="mn", - [0x0743]="mn", - [0x0744]="mn", - [0x0745]="mn", - [0x0746]="mn", - [0x0747]="mn", - [0x0748]="mn", - [0x0749]="mn", - [0x074A]="mn", - [0x07A6]="mn", - [0x07A7]="mn", - [0x07A8]="mn", - [0x07A9]="mn", - [0x07AA]="mn", - [0x07AB]="mn", - [0x07AC]="mn", - [0x07AD]="mn", - [0x07AE]="mn", - [0x07AF]="mn", - [0x07B0]="mn", - [0x07EB]="mn", - [0x07EC]="mn", - [0x07ED]="mn", - [0x07EE]="mn", - [0x07EF]="mn", - [0x07F0]="mn", - [0x07F1]="mn", - [0x07F2]="mn", - [0x07F3]="mn", - [0x0901]="mn", - [0x0902]="mn", - [0x093C]="mn", - [0x0941]="mn", - [0x0942]="mn", - [0x0943]="mn", - [0x0944]="mn", - [0x0945]="mn", - [0x0946]="mn", - [0x0947]="mn", - [0x0948]="mn", - [0x094D]="mn", - [0x0951]="mn", - [0x0952]="mn", - [0x0953]="mn", - [0x0954]="mn", - [0x0962]="mn", - [0x0963]="mn", - [0x0981]="mn", - [0x09BC]="mn", - [0x09C1]="mn", - [0x09C2]="mn", - [0x09C3]="mn", - [0x09C4]="mn", - [0x09CD]="mn", - [0x09E2]="mn", - [0x09E3]="mn", - [0x0A01]="mn", - [0x0A02]="mn", - [0x0A3C]="mn", - [0x0A41]="mn", - [0x0A42]="mn", - [0x0A47]="mn", - [0x0A48]="mn", - [0x0A4B]="mn", - [0x0A4C]="mn", - [0x0A4D]="mn", - [0x0A70]="mn", - [0x0A71]="mn", - [0x0A81]="mn", - [0x0A82]="mn", - [0x0ABC]="mn", - [0x0AC1]="mn", - [0x0AC2]="mn", - [0x0AC3]="mn", - [0x0AC4]="mn", - [0x0AC5]="mn", - [0x0AC7]="mn", - [0x0AC8]="mn", - [0x0ACD]="mn", - [0x0AE2]="mn", - [0x0AE3]="mn", - [0x0B01]="mn", - [0x0B3C]="mn", - [0x0B3F]="mn", - [0x0B41]="mn", - [0x0B42]="mn", - [0x0B43]="mn", - [0x0B4D]="mn", - [0x0B56]="mn", - [0x0B82]="mn", - [0x0BC0]="mn", - [0x0BCD]="mn", - [0x0C3E]="mn", - [0x0C3F]="mn", - [0x0C40]="mn", - [0x0C46]="mn", - [0x0C47]="mn", - [0x0C48]="mn", - [0x0C4A]="mn", - [0x0C4B]="mn", - [0x0C4C]="mn", - [0x0C4D]="mn", - [0x0C55]="mn", - [0x0C56]="mn", - [0x0CBC]="mn", - [0x0CBF]="mn", - [0x0CC6]="mn", - [0x0CCC]="mn", - [0x0CCD]="mn", - [0x0CE2]="mn", - [0x0CE3]="mn", - [0x0D41]="mn", - [0x0D42]="mn", - [0x0D43]="mn", - [0x0D4D]="mn", - [0x0DCA]="mn", - [0x0DD2]="mn", - [0x0DD3]="mn", - [0x0DD4]="mn", - [0x0DD6]="mn", - [0x0E31]="mn", - [0x0E34]="mn", - [0x0E35]="mn", - [0x0E36]="mn", - [0x0E37]="mn", - [0x0E38]="mn", - [0x0E39]="mn", - [0x0E3A]="mn", - [0x0E47]="mn", - [0x0E48]="mn", - [0x0E49]="mn", - [0x0E4A]="mn", - [0x0E4B]="mn", - [0x0E4C]="mn", - [0x0E4D]="mn", - [0x0E4E]="mn", - [0x0EB1]="mn", - [0x0EB4]="mn", - [0x0EB5]="mn", - [0x0EB6]="mn", - [0x0EB7]="mn", - [0x0EB8]="mn", - [0x0EB9]="mn", - [0x0EBB]="mn", - [0x0EBC]="mn", - [0x0EC8]="mn", - [0x0EC9]="mn", - [0x0ECA]="mn", - [0x0ECB]="mn", - [0x0ECC]="mn", - [0x0ECD]="mn", - [0x0F18]="mn", - [0x0F19]="mn", - [0x0F35]="mn", - [0x0F37]="mn", - [0x0F39]="mn", - [0x0F71]="mn", - [0x0F72]="mn", - [0x0F73]="mn", - [0x0F74]="mn", - [0x0F75]="mn", - [0x0F76]="mn", - [0x0F77]="mn", - [0x0F78]="mn", - [0x0F79]="mn", - [0x0F7A]="mn", - [0x0F7B]="mn", - [0x0F7C]="mn", - [0x0F7D]="mn", - [0x0F7E]="mn", - [0x0F80]="mn", - [0x0F81]="mn", - [0x0F82]="mn", - [0x0F83]="mn", - [0x0F84]="mn", - [0x0F86]="mn", - [0x0F87]="mn", - [0x0F90]="mn", - [0x0F91]="mn", - [0x0F92]="mn", - [0x0F93]="mn", - [0x0F94]="mn", - [0x0F95]="mn", - [0x0F96]="mn", - [0x0F97]="mn", - [0x0F99]="mn", - [0x0F9A]="mn", - [0x0F9B]="mn", - [0x0F9C]="mn", - [0x0F9D]="mn", - [0x0F9E]="mn", - [0x0F9F]="mn", - [0x0FA0]="mn", - [0x0FA1]="mn", - [0x0FA2]="mn", - [0x0FA3]="mn", - [0x0FA4]="mn", - [0x0FA5]="mn", - [0x0FA6]="mn", - [0x0FA7]="mn", - [0x0FA8]="mn", - [0x0FA9]="mn", - [0x0FAA]="mn", - [0x0FAB]="mn", - [0x0FAC]="mn", - [0x0FAD]="mn", - [0x0FAE]="mn", - [0x0FAF]="mn", - [0x0FB0]="mn", - [0x0FB1]="mn", - [0x0FB2]="mn", - [0x0FB3]="mn", - [0x0FB4]="mn", - [0x0FB5]="mn", - [0x0FB6]="mn", - [0x0FB7]="mn", - [0x0FB8]="mn", - [0x0FB9]="mn", - [0x0FBA]="mn", - [0x0FBB]="mn", - [0x0FBC]="mn", - [0x0FC6]="mn", - [0x102D]="mn", - [0x102E]="mn", - [0x102F]="mn", - [0x1030]="mn", - [0x1032]="mn", - [0x1036]="mn", - [0x1037]="mn", - [0x1039]="mn", - [0x1058]="mn", - [0x1059]="mn", - [0x135F]="mn", - [0x1712]="mn", - [0x1713]="mn", - [0x1714]="mn", - [0x1732]="mn", - [0x1733]="mn", - [0x1734]="mn", - [0x1752]="mn", - [0x1753]="mn", - [0x1772]="mn", - [0x1773]="mn", - [0x17B7]="mn", - [0x17B8]="mn", - [0x17B9]="mn", - [0x17BA]="mn", - [0x17BB]="mn", - [0x17BC]="mn", - [0x17BD]="mn", - [0x17C6]="mn", - [0x17C9]="mn", - [0x17CA]="mn", - [0x17CB]="mn", - [0x17CC]="mn", - [0x17CD]="mn", - [0x17CE]="mn", - [0x17CF]="mn", - [0x17D0]="mn", - [0x17D1]="mn", - [0x17D2]="mn", - [0x17D3]="mn", - [0x17DD]="mn", - [0x180B]="mn", - [0x180C]="mn", - [0x180D]="mn", - [0x18A9]="mn", - [0x1920]="mn", - [0x1921]="mn", - [0x1922]="mn", - [0x1927]="mn", - [0x1928]="mn", - [0x1932]="mn", - [0x1939]="mn", - [0x193A]="mn", - [0x193B]="mn", - [0x1A17]="mn", - [0x1A18]="mn", - [0x1B00]="mn", - [0x1B01]="mn", - [0x1B02]="mn", - [0x1B03]="mn", - [0x1B34]="mn", - [0x1B36]="mn", - [0x1B37]="mn", - [0x1B38]="mn", - [0x1B39]="mn", - [0x1B3A]="mn", - [0x1B3C]="mn", - [0x1B42]="mn", - [0x1B6B]="mn", - [0x1B6C]="mn", - [0x1B6D]="mn", - [0x1B6E]="mn", - [0x1B6F]="mn", - [0x1B70]="mn", - [0x1B71]="mn", - [0x1B72]="mn", - [0x1B73]="mn", - [0x1DC0]="mn", - [0x1DC1]="mn", - [0x1DC2]="mn", - [0x1DC3]="mn", - [0x1DC4]="mn", - [0x1DC5]="mn", - [0x1DC6]="mn", - [0x1DC7]="mn", - [0x1DC8]="mn", - [0x1DC9]="mn", - [0x1DCA]="mn", - [0x1DFE]="mn", - [0x1DFF]="mn", - [0x20D0]="mn", - [0x20D1]="mn", - [0x20D2]="mn", - [0x20D3]="mn", - [0x20D4]="mn", - [0x20D5]="mn", - [0x20D6]="mn", - [0x20D7]="mn", - [0x20D8]="mn", - [0x20D9]="mn", - [0x20DA]="mn", - [0x20DB]="mn", - [0x20DC]="mn", - [0x20E1]="mn", - [0x20E5]="mn", - [0x20E6]="mn", - [0x20E7]="mn", - [0x20E8]="mn", - [0x20E9]="mn", - [0x20EA]="mn", - [0x20EB]="mn", - [0x20EC]="mn", - [0x20ED]="mn", - [0x20EE]="mn", - [0x20EF]="mn", - [0x302A]="mn", - [0x302B]="mn", - [0x302C]="mn", - [0x302D]="mn", - [0x302E]="mn", - [0x302F]="mn", - [0x3099]="mn", - [0x309A]="mn", - [0xA806]="mn", - [0xA80B]="mn", - [0xA825]="mn", - [0xA826]="mn", - [0xFB1E]="mn", - [0xFE00]="mn", - [0xFE01]="mn", - [0xFE02]="mn", - [0xFE03]="mn", - [0xFE04]="mn", - [0xFE05]="mn", - [0xFE06]="mn", - [0xFE07]="mn", - [0xFE08]="mn", - [0xFE09]="mn", - [0xFE0A]="mn", - [0xFE0B]="mn", - [0xFE0C]="mn", - [0xFE0D]="mn", - [0xFE0E]="mn", - [0xFE0F]="mn", - [0xFE20]="mn", - [0xFE21]="mn", - [0xFE22]="mn", - [0xFE23]="mn", +registerotffeature { + name="features", + description="features", + default=true, + initializers={ + position=1, + node=featuresinitializer, + }, + processors={ + node=featuresprocessor, + } } +otf.handlers=handlers end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['luatex-fonts-lua'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luatex-fonts-lua']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() + texio.write_nl("fatal error: this module is not for context") + os.exit() end - -local fonts = fonts -fonts.formats.lua = "lua" - +local fonts=fonts +fonts.formats.lua="lua" function fonts.readers.lua(specification) - local fullname = specification.filename or "" - if fullname == "" then - local forced = specification.forced or "" - if forced ~= "" then - fullname = specification.name .. "." .. forced - else - fullname = specification.name - end - end - local fullname = resolvers.findfile(fullname) or "" - if fullname ~= "" then - local loader = loadfile(fullname) - loader = loader and loader() - return loader and loader(specification) + local fullname=specification.filename or "" + if fullname=="" then + local forced=specification.forced or "" + if forced~="" then + fullname=specification.name.."."..forced + else + fullname=specification.name end + end + local fullname=resolvers.findfile(fullname) or "" + if fullname~="" then + local loader=loadfile(fullname) + loader=loader and loader() + return loader and loader(specification) + end end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['font-def'] = { - version = 1.001, - comment = "companion to font-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['font-def']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - --- We can overload some of the definers.functions so we don't local them. - -local format, gmatch, match, find, lower, gsub = string.format, string.gmatch, string.match, string.find, string.lower, string.gsub -local tostring, next = tostring, next -local lpegmatch = lpeg.match - -local allocate = utilities.storage.allocate - -local trace_defining = false trackers .register("fonts.defining", function(v) trace_defining = v end) -local directive_embedall = false directives.register("fonts.embedall", function(v) directive_embedall = v end) - -trackers.register("fonts.loading", "fonts.defining", "otf.loading", "afm.loading", "tfm.loading") -trackers.register("fonts.all", "fonts.*", "otf.*", "afm.*", "tfm.*") - -local report_defining = logs.reporter("fonts","defining") - ---[[ldx-- -

Here we deal with defining fonts. We do so by intercepting the -default loader that only handles .

---ldx]]-- - -local fonts = fonts -local fontdata = fonts.hashes.identifiers -local readers = fonts.readers -local definers = fonts.definers -local specifiers = fonts.specifiers -local constructors = fonts.constructors -local fontgoodies = fonts.goodies - -readers.sequence = allocate { 'otf', 'ttf', 'afm', 'tfm', 'lua' } -- dfont ttc - -local variants = allocate() -specifiers.variants = variants - -definers.methods = definers.methods or { } - -local internalized = allocate() -- internal tex numbers (private) - -local loadedfonts = constructors.loadedfonts -local designsizes = constructors.designsizes - --- not in generic (some day I'll make two defs, one for context, one for generic) - -local resolvefile = fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end - ---[[ldx-- -

We hardly gain anything when we cache the final (pre scaled) - table. But it can be handy for debugging, so we no -longer carry this code along. Also, we now have quite some reference -to other tables so we would end up with lots of catches.

---ldx]]-- - ---[[ldx-- -

We can prefix a font specification by name: or -file:. The first case will result in a lookup in the -synonym table.

- - -[ name: | file: ] identifier [ separator [ specification ] ] - - -

The following function split the font specification into components -and prepares a table that will move along as we proceed.

---ldx]]-- - --- beware, we discard additional specs --- --- method:name method:name(sub) method:name(sub)*spec method:name*spec --- name name(sub) name(sub)*spec name*spec --- name@spec*oeps - -local splitter, splitspecifiers = nil, "" -- not so nice - -local P, C, S, Cc = lpeg.P, lpeg.C, lpeg.S, lpeg.Cc - -local left = P("(") -local right = P(")") -local colon = P(":") -local space = P(" ") - -definers.defaultlookup = "file" - -local prefixpattern = P(false) - +local format,gmatch,match,find,lower,gsub=string.format,string.gmatch,string.match,string.find,string.lower,string.gsub +local tostring,next=tostring,next +local lpegmatch=lpeg.match +local allocate=utilities.storage.allocate +local trace_defining=false trackers .register("fonts.defining",function(v) trace_defining=v end) +local directive_embedall=false directives.register("fonts.embedall",function(v) directive_embedall=v end) +trackers.register("fonts.loading","fonts.defining","otf.loading","afm.loading","tfm.loading") +trackers.register("fonts.all","fonts.*","otf.*","afm.*","tfm.*") +local report_defining=logs.reporter("fonts","defining") +local fonts=fonts +local fontdata=fonts.hashes.identifiers +local readers=fonts.readers +local definers=fonts.definers +local specifiers=fonts.specifiers +local constructors=fonts.constructors +local fontgoodies=fonts.goodies +readers.sequence=allocate { 'otf','ttf','afm','tfm','lua' } +local variants=allocate() +specifiers.variants=variants +definers.methods=definers.methods or {} +local internalized=allocate() +local loadedfonts=constructors.loadedfonts +local designsizes=constructors.designsizes +local resolvefile=fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end +local splitter,splitspecifiers=nil,"" +local P,C,S,Cc=lpeg.P,lpeg.C,lpeg.S,lpeg.Cc +local left=P("(") +local right=P(")") +local colon=P(":") +local space=P(" ") +definers.defaultlookup="file" +local prefixpattern=P(false) local function addspecifier(symbol) - splitspecifiers = splitspecifiers .. symbol - local method = S(splitspecifiers) - local lookup = C(prefixpattern) * colon - local sub = left * C(P(1-left-right-method)^1) * right - local specification = C(method) * C(P(1)^1) - local name = C((1-sub-specification)^1) - splitter = P((lookup + Cc("")) * name * (sub + Cc("")) * (specification + Cc(""))) + splitspecifiers=splitspecifiers..symbol + local method=S(splitspecifiers) + local lookup=C(prefixpattern)*colon + local sub=left*C(P(1-left-right-method)^1)*right + local specification=C(method)*C(P(1)^1) + local name=C((1-sub-specification)^1) + splitter=P((lookup+Cc(""))*name*(sub+Cc(""))*(specification+Cc(""))) end - local function addlookup(str,default) - prefixpattern = prefixpattern + P(str) + prefixpattern=prefixpattern+P(str) end - -definers.addlookup = addlookup - +definers.addlookup=addlookup addlookup("file") addlookup("name") addlookup("spec") - local function getspecification(str) - return lpegmatch(splitter,str) + return lpegmatch(splitter,str) end - -definers.getspecification = getspecification - +definers.getspecification=getspecification function definers.registersplit(symbol,action,verbosename) - addspecifier(symbol) - variants[symbol] = action - if verbosename then - variants[verbosename] = action - end + addspecifier(symbol) + variants[symbol]=action + if verbosename then + variants[verbosename]=action + end end - local function makespecification(specification,lookup,name,sub,method,detail,size) - size = size or 655360 - if trace_defining then - report_defining("%s -> lookup: %s, name: %s, sub: %s, method: %s, detail: %s", - specification, lookup ~= "" and lookup or "[file]", name ~= "" and name or "-", - sub ~= "" and sub or "-", method ~= "" and method or "-", detail ~= "" and detail or "-") - end - if not lookup or lookup == "" then - lookup = definers.defaultlookup - end - local t = { - lookup = lookup, -- forced type - specification = specification, -- full specification - size = size, -- size in scaled points or -1000*n - name = name, -- font or filename - sub = sub, -- subfont (eg in ttc) - method = method, -- specification method - detail = detail, -- specification - resolved = "", -- resolved font name - forced = "", -- forced loader - features = { }, -- preprocessed features - } - return t -end - - -definers.makespecification = makespecification - -function definers.analyze(specification, size) - -- can be optimized with locals - local lookup, name, sub, method, detail = getspecification(specification or "") - return makespecification(specification, lookup, name, sub, method, detail, size) -end - ---[[ldx-- -

We can resolve the filename using the next function:

---ldx]]-- - -definers.resolvers = definers.resolvers or { } -local resolvers = definers.resolvers - --- todo: reporter - + size=size or 655360 + if trace_defining then + report_defining("%s -> lookup: %s, name: %s, sub: %s, method: %s, detail: %s", + specification,lookup~="" and lookup or "[file]",name~="" and name or "-", + sub~="" and sub or "-",method~="" and method or "-",detail~="" and detail or "-") + end + if not lookup or lookup=="" then + lookup=definers.defaultlookup + end + local t={ + lookup=lookup, + specification=specification, + size=size, + name=name, + sub=sub, + method=method, + detail=detail, + resolved="", + forced="", + features={}, + } + return t +end +definers.makespecification=makespecification +function definers.analyze(specification,size) + local lookup,name,sub,method,detail=getspecification(specification or "") + return makespecification(specification,lookup,name,sub,method,detail,size) +end +definers.resolvers=definers.resolvers or {} +local resolvers=definers.resolvers function resolvers.file(specification) - local name = resolvefile(specification.name) -- catch for renames - local suffix = file.suffix(name) - if fonts.formats[suffix] then - specification.forced = suffix - specification.name = file.removesuffix(name) - else - specification.name = name -- cna be resolved - end + local name=resolvefile(specification.name) + local suffix=file.suffix(name) + if fonts.formats[suffix] then + specification.forced=suffix + specification.name=file.removesuffix(name) + else + specification.name=name + end end - function resolvers.name(specification) - local resolve = fonts.names.resolve - if resolve then - local resolved, sub = resolve(specification.name,specification.sub,specification) -- we pass specification for overloaded versions - if resolved then - specification.resolved = resolved - specification.sub = sub - local suffix = file.suffix(resolved) - if fonts.formats[suffix] then - specification.forced = suffix - specification.name = file.removesuffix(resolved) - else - specification.name = resolved - end - end - else - resolvers.file(specification) - end + local resolve=fonts.names.resolve + if resolve then + local resolved,sub=resolve(specification.name,specification.sub,specification) + if resolved then + specification.resolved=resolved + specification.sub=sub + local suffix=file.suffix(resolved) + if fonts.formats[suffix] then + specification.forced=suffix + specification.name=file.removesuffix(resolved) + else + specification.name=resolved + end + end + else + resolvers.file(specification) + end end - function resolvers.spec(specification) - local resolvespec = fonts.names.resolvespec - if resolvespec then - local resolved, sub = resolvespec(specification.name,specification.sub,specification) -- we pass specification for overloaded versions - if resolved then - specification.resolved = resolved - specification.sub = sub - specification.forced = file.suffix(resolved) - specification.name = file.removesuffix(resolved) - end - else - resolvers.name(specification) - end + local resolvespec=fonts.names.resolvespec + if resolvespec then + local resolved,sub=resolvespec(specification.name,specification.sub,specification) + if resolved then + specification.resolved=resolved + specification.sub=sub + specification.forced=file.suffix(resolved) + specification.name=file.removesuffix(resolved) + end + else + resolvers.name(specification) + end end - function definers.resolve(specification) - if not specification.resolved or specification.resolved == "" then -- resolved itself not per se in mapping hash - local r = resolvers[specification.lookup] - if r then - r(specification) - end - end - if specification.forced == "" then - specification.forced = nil - else - specification.forced = specification.forced - end - specification.hash = lower(specification.name .. ' @ ' .. constructors.hashfeatures(specification)) - if specification.sub and specification.sub ~= "" then - specification.hash = specification.sub .. ' @ ' .. specification.hash - end - return specification + if not specification.resolved or specification.resolved=="" then + local r=resolvers[specification.lookup] + if r then + r(specification) + end + end + if specification.forced=="" then + specification.forced=nil + else + specification.forced=specification.forced + end + specification.hash=lower(specification.name..' @ '..constructors.hashfeatures(specification)) + if specification.sub and specification.sub~="" then + specification.hash=specification.sub..' @ '..specification.hash + end + return specification end - ---[[ldx-- -

The main read function either uses a forced reader (as determined by -a lookup) or tries to resolve the name using the list of readers.

- -

We need to cache when possible. We do cache raw tfm data (from , or ). After that we can cache based -on specificstion (name) and size, that is, only needs a number -for an already loaded fonts. However, it may make sense to cache fonts -before they're scaled as well (store 's with applied methods -and features). However, there may be a relation between the size and -features (esp in virtual fonts) so let's not do that now.

- -

Watch out, here we do load a font, but we don't prepare the -specification yet.

---ldx]]-- - --- very experimental: - function definers.applypostprocessors(tfmdata) - local postprocessors = tfmdata.postprocessors - if postprocessors then - local properties = tfmdata.properties - for i=1,#postprocessors do - local extrahash = postprocessors[i](tfmdata) -- after scaling etc - if type(extrahash) == "string" and extrahash ~= "" then - -- e.g. a reencoding needs this - extrahash = gsub(lower(extrahash),"[^a-z]","-") - properties.fullname = format("%s-%s",properties.fullname,extrahash) - end - end - end - return tfmdata + local postprocessors=tfmdata.postprocessors + if postprocessors then + local properties=tfmdata.properties + for i=1,#postprocessors do + local extrahash=postprocessors[i](tfmdata) + if type(extrahash)=="string" and extrahash~="" then + extrahash=gsub(lower(extrahash),"[^a-z]","-") + properties.fullname=format("%s-%s",properties.fullname,extrahash) + end + end + end + return tfmdata end - --- function definers.applypostprocessors(tfmdata) --- return tfmdata --- end - local function checkembedding(tfmdata) - local properties = tfmdata.properties - local embedding - if directive_embedall then - embedding = "full" - elseif properties and properties.filename and constructors.dontembed[properties.filename] then - embedding = "no" - else - embedding = "subset" - end - if properties then - properties.embedding = embedding - else - tfmdata.properties = { embedding = embedding } - end - tfmdata.embedding = embedding + local properties=tfmdata.properties + local embedding + if directive_embedall then + embedding="full" + elseif properties and properties.filename and constructors.dontembed[properties.filename] then + embedding="no" + else + embedding="subset" + end + if properties then + properties.embedding=embedding + else + tfmdata.properties={ embedding=embedding } + end + tfmdata.embedding=embedding end - function definers.loadfont(specification) - local hash = constructors.hashinstance(specification) - local tfmdata = loadedfonts[hash] -- hashes by size ! - if not tfmdata then - local forced = specification.forced or "" - if forced ~= "" then - local reader = readers[lower(forced)] - tfmdata = reader and reader(specification) - if not tfmdata then - report_defining("forced type %s of %s not found",forced,specification.name) - end - else - local sequence = readers.sequence -- can be overloaded so only a shortcut here - for s=1,#sequence do - local reader = sequence[s] - if readers[reader] then -- we skip not loaded readers - if trace_defining then - report_defining("trying (reader sequence driven) type %s for %s with file %s",reader,specification.name,specification.filename or "unknown") - end - tfmdata = readers[reader](specification) - if tfmdata then - break - else - specification.filename = nil - end - end - end - end - if tfmdata then - tfmdata = definers.applypostprocessors(tfmdata) - checkembedding(tfmdata) -- todo: general postprocessor - loadedfonts[hash] = tfmdata - designsizes[specification.hash] = tfmdata.parameters.designsize + local hash=constructors.hashinstance(specification) + local tfmdata=loadedfonts[hash] + if not tfmdata then + local forced=specification.forced or "" + if forced~="" then + local reader=readers[lower(forced)] + tfmdata=reader and reader(specification) + if not tfmdata then + report_defining("forced type %s of %s not found",forced,specification.name) + end + else + local sequence=readers.sequence + for s=1,#sequence do + local reader=sequence[s] + if readers[reader] then + if trace_defining then + report_defining("trying (reader sequence driven) type %s for %s with file %s",reader,specification.name,specification.filename or "unknown") + end + tfmdata=readers[reader](specification) + if tfmdata then + break + else + specification.filename=nil + end end + end end - if not tfmdata then - report_defining("font with asked name '%s' is not found using lookup '%s'",specification.name,specification.lookup) - end - return tfmdata -end - ---[[ldx-- -

For virtual fonts we need a slightly different approach:

---ldx]]-- - -function constructors.readanddefine(name,size) -- no id -- maybe a dummy first - local specification = definers.analyze(name,size) - local method = specification.method - if method and variants[method] then - specification = variants[method](specification) - end - specification = definers.resolve(specification) - local hash = constructors.hashinstance(specification) - local id = definers.registered(hash) - if not id then - local tfmdata = definers.loadfont(specification) - if tfmdata then - tfmdata.properties.hash = hash - id = font.define(tfmdata) - definers.register(tfmdata,id) - else - id = 0 -- signal - end + if tfmdata then + tfmdata=definers.applypostprocessors(tfmdata) + checkembedding(tfmdata) + loadedfonts[hash]=tfmdata + designsizes[specification.hash]=tfmdata.parameters.designsize + end + end + if not tfmdata then + report_defining("font with asked name '%s' is not found using lookup '%s'",specification.name,specification.lookup) + end + return tfmdata +end +function constructors.readanddefine(name,size) + local specification=definers.analyze(name,size) + local method=specification.method + if method and variants[method] then + specification=variants[method](specification) + end + specification=definers.resolve(specification) + local hash=constructors.hashinstance(specification) + local id=definers.registered(hash) + if not id then + local tfmdata=definers.loadfont(specification) + if tfmdata then + tfmdata.properties.hash=hash + id=font.define(tfmdata) + definers.register(tfmdata,id) + else + id=0 end - return fontdata[id], id + end + return fontdata[id],id end - ---[[ldx-- -

So far the specifiers. Now comes the real definer. Here we cache -based on id's. Here we also intercept the virtual font handler. Since -it evolved stepwise I may rewrite this bit (combine code).

- -In the previously defined reader (the one resulting in a -table) we cached the (scaled) instances. Here we cache them again, but -this time based on id. We could combine this in one cache but this does -not gain much. By the way, passing id's back to in the callback was -introduced later in the development.

---ldx]]-- - -local lastdefined = nil -- we don't want this one to end up in s-tra-02 -local internalized = { } - -function definers.current() -- or maybe current - return lastdefined +local lastdefined=nil +local internalized={} +function definers.current() + return lastdefined end - function definers.registered(hash) - local id = internalized[hash] - return id, id and fontdata[id] + local id=internalized[hash] + return id,id and fontdata[id] end - function definers.register(tfmdata,id) - if tfmdata and id then - local hash = tfmdata.properties.hash - if not internalized[hash] then - internalized[hash] = id - if trace_defining then - report_defining("registering font, id: %s, hash: %s",id or "?",hash or "?") - end - fontdata[id] = tfmdata - end + if tfmdata and id then + local hash=tfmdata.properties.hash + if not internalized[hash] then + internalized[hash]=id + if trace_defining then + report_defining("registering font, id: %s, hash: %s",id or "?",hash or "?") + end + fontdata[id]=tfmdata + end + end +end +function definers.read(specification,size,id) + statistics.starttiming(fonts) + if type(specification)=="string" then + specification=definers.analyze(specification,size) + end + local method=specification.method + if method and variants[method] then + specification=variants[method](specification) + end + specification=definers.resolve(specification) + local hash=constructors.hashinstance(specification) + local tfmdata=definers.registered(hash) + if tfmdata then + if trace_defining then + report_defining("already hashed: %s",hash) end -end - -function definers.read(specification,size,id) -- id can be optional, name can already be table - statistics.starttiming(fonts) - if type(specification) == "string" then - specification = definers.analyze(specification,size) - end - local method = specification.method - if method and variants[method] then - specification = variants[method](specification) - end - specification = definers.resolve(specification) - local hash = constructors.hashinstance(specification) - local tfmdata = definers.registered(hash) -- id + else + tfmdata=definers.loadfont(specification) if tfmdata then - if trace_defining then - report_defining("already hashed: %s",hash) - end + if trace_defining then + report_defining("loaded and hashed: %s",hash) + end + tfmdata.properties.hash=hash + if id then + definers.register(tfmdata,id) + end else - tfmdata = definers.loadfont(specification) -- can be overloaded - if tfmdata then - if trace_defining then - report_defining("loaded and hashed: %s",hash) - end - --~ constructors.checkvirtualid(tfmdata) -- interferes - tfmdata.properties.hash = hash - if id then - definers.register(tfmdata,id) - end - else - if trace_defining then - report_defining("not loaded and hashed: %s",hash) - end - end - end - lastdefined = tfmdata or id -- todo ! ! ! ! ! - if not tfmdata then -- or id? - report_defining( "unknown font %s, loading aborted",specification.name) - elseif trace_defining and type(tfmdata) == "table" then - local properties = tfmdata.properties or { } - local parameters = tfmdata.parameters or { } - report_defining("using %s font with id %s, name:%s size:%s bytes:%s encoding:%s fullname:%s filename:%s", - properties.format or "unknown", - id or "?", - properties.name or "?", - parameters.size or "default", - properties.encodingbytes or "?", - properties.encodingname or "unicode", - properties.fullname or "?", - file.basename(properties.filename or "?")) - end - statistics.stoptiming(fonts) - return tfmdata -end - ---[[ldx-- -

We overload the reader.

---ldx]]-- - -callbacks.register('define_font', definers.read, "definition of fonts (tfmdata preparation)") + if trace_defining then + report_defining("not loaded and hashed: %s",hash) + end + end + end + lastdefined=tfmdata or id + if not tfmdata then + report_defining("unknown font %s, loading aborted",specification.name) + elseif trace_defining and type(tfmdata)=="table" then + local properties=tfmdata.properties or {} + local parameters=tfmdata.parameters or {} + report_defining("using %s font with id %s, name:%s size:%s bytes:%s encoding:%s fullname:%s filename:%s", + properties.format or "unknown", + id or "?", + properties.name or "?", + parameters.size or "default", + properties.encodingbytes or "?", + properties.encodingname or "unicode", + properties.fullname or "?", + file.basename(properties.filename or "?")) + end + statistics.stoptiming(fonts) + return tfmdata +end +callbacks.register('define_font',definers.read,"definition of fonts (tfmdata preparation)") end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['luatex-font-def'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luatex-font-def']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() + texio.write_nl("fatal error: this module is not for context") + os.exit() end - -local fonts = fonts - --- A bit of tuning for definitions. - -fonts.constructors.namemode = "specification" -- somehow latex needs this (changed name!) => will change into an overload - --- tricky: we sort of bypass the parser and directly feed all into --- the sub parser - +local fonts=fonts +fonts.constructors.namemode="specification" function fonts.definers.getspecification(str) - return "", str, "", ":", str -end - --- the generic name parser (different from context!) - -local list = { } - -local function issome () list.lookup = 'name' end -- xetex mode prefers name (not in context!) -local function isfile () list.lookup = 'file' end -local function isname () list.lookup = 'name' end -local function thename(s) list.name = s end -local function issub (v) list.sub = v end -local function iscrap (s) list.crap = string.lower(s) end -local function iskey (k,v) list[k] = v end -local function istrue (s) list[s] = true end -local function isfalse(s) list[s] = false end - -local P, S, R, C = lpeg.P, lpeg.S, lpeg.R, lpeg.C - -local spaces = P(" ")^0 -local namespec = (1-S("/:("))^0 -- was: (1-S("/: ("))^0 -local crapspec = spaces * P("/") * (((1-P(":"))^0)/iscrap) * spaces -local filename_1 = P("file:")/isfile * (namespec/thename) -local filename_2 = P("[") * P(true)/isname * (((1-P("]"))^0)/thename) * P("]") -local fontname_1 = P("name:")/isname * (namespec/thename) -local fontname_2 = P(true)/issome * (namespec/thename) -local sometext = (R("az","AZ","09") + S("+-."))^1 -local truevalue = P("+") * spaces * (sometext/istrue) -local falsevalue = P("-") * spaces * (sometext/isfalse) -local keyvalue = (C(sometext) * spaces * P("=") * spaces * C(sometext))/iskey -local somevalue = sometext/istrue -local subvalue = P("(") * (C(P(1-S("()"))^1)/issub) * P(")") -- for Kim -local option = spaces * (keyvalue + falsevalue + truevalue + somevalue) * spaces -local options = P(":") * spaces * (P(";")^0 * option)^0 - -local pattern = (filename_1 + filename_2 + fontname_1 + fontname_2) * subvalue^0 * crapspec^0 * options^0 - -local function colonized(specification) -- xetex mode - list = { } - lpeg.match(pattern,specification.specification) - list.crap = nil -- style not supported, maybe some day - if list.name then - specification.name = list.name - list.name = nil - end - if list.lookup then - specification.lookup = list.lookup - list.lookup = nil - end - if list.sub then - specification.sub = list.sub - list.sub = nil - end - specification.features.normal = fonts.handlers.otf.features.normalize(list) - return specification + return "",str,"",":",str +end +local list={} +local function issome () list.lookup='name' end +local function isfile () list.lookup='file' end +local function isname () list.lookup='name' end +local function thename(s) list.name=s end +local function issub (v) list.sub=v end +local function iscrap (s) list.crap=string.lower(s) end +local function iskey (k,v) list[k]=v end +local function istrue (s) list[s]=true end +local function isfalse(s) list[s]=false end +local P,S,R,C=lpeg.P,lpeg.S,lpeg.R,lpeg.C +local spaces=P(" ")^0 +local namespec=(1-S("/:("))^0 +local crapspec=spaces*P("/")*(((1-P(":"))^0)/iscrap)*spaces +local filename_1=P("file:")/isfile*(namespec/thename) +local filename_2=P("[")*P(true)/isname*(((1-P("]"))^0)/thename)*P("]") +local fontname_1=P("name:")/isname*(namespec/thename) +local fontname_2=P(true)/issome*(namespec/thename) +local sometext=(R("az","AZ","09")+S("+-."))^1 +local truevalue=P("+")*spaces*(sometext/istrue) +local falsevalue=P("-")*spaces*(sometext/isfalse) +local keyvalue=(C(sometext)*spaces*P("=")*spaces*C(sometext))/iskey +local somevalue=sometext/istrue +local subvalue=P("(")*(C(P(1-S("()"))^1)/issub)*P(")") +local option=spaces*(keyvalue+falsevalue+truevalue+somevalue)*spaces +local options=P(":")*spaces*(P(";")^0*option)^0 +local pattern=(filename_1+filename_2+fontname_1+fontname_2)*subvalue^0*crapspec^0*options^0 +local function colonized(specification) + list={} + lpeg.match(pattern,specification.specification) + list.crap=nil + if list.name then + specification.name=list.name + list.name=nil + end + if list.lookup then + specification.lookup=list.lookup + list.lookup=nil + end + if list.sub then + specification.sub=list.sub + list.sub=nil + end + specification.features.normal=fonts.handlers.otf.features.normalize(list) + return specification end - fonts.definers.registersplit(":",colonized,"cryptic") -fonts.definers.registersplit("", colonized,"more cryptic") -- catches \font\text=[names] - +fonts.definers.registersplit("",colonized,"more cryptic") function fonts.definers.applypostprocessors(tfmdata) - local postprocessors = tfmdata.postprocessors - if postprocessors then - for i=1,#postprocessors do - local extrahash = postprocessors[i](tfmdata) -- after scaling etc - if type(extrahash) == "string" and extrahash ~= "" then - -- e.g. a reencoding needs this - extrahash = string.gsub(lower(extrahash),"[^a-z]","-") - tfmdata.properties.fullname = format("%s-%s",tfmdata.properties.fullname,extrahash) - end - end + local postprocessors=tfmdata.postprocessors + if postprocessors then + for i=1,#postprocessors do + local extrahash=postprocessors[i](tfmdata) + if type(extrahash)=="string" and extrahash~="" then + extrahash=string.gsub(lower(extrahash),"[^a-z]","-") + tfmdata.properties.fullname=format("%s-%s",tfmdata.properties.fullname,extrahash) + end end - return tfmdata + end + return tfmdata end end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['luatex-fonts-ext'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luatex-fonts-ext']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() + texio.write_nl("fatal error: this module is not for context") + os.exit() end - -local fonts = fonts -local otffeatures = fonts.constructors.newfeatures("otf") - --- A few generic extensions. - +local fonts=fonts +local otffeatures=fonts.constructors.newfeatures("otf") local function initializeitlc(tfmdata,value) - if value then - -- the magic 40 and it formula come from Dohyun Kim but we might need another guess - local parameters = tfmdata.parameters - local italicangle = parameters.italicangle - if italicangle and italicangle ~= 0 then - local properties = tfmdata.properties - local factor = tonumber(value) or 1 - properties.hasitalics = true - properties.autoitalicamount = factor * (parameters.uwidth or 40)/2 - end + if value then + local parameters=tfmdata.parameters + local italicangle=parameters.italicangle + if italicangle and italicangle~=0 then + local properties=tfmdata.properties + local factor=tonumber(value) or 1 + properties.hasitalics=true + properties.autoitalicamount=factor*(parameters.uwidth or 40)/2 end + end end - otffeatures.register { - name = "itlc", - description = "italic correction", - initializers = { - base = initializeitlc, - node = initializeitlc, - } + name="itlc", + description="italic correction", + initializers={ + base=initializeitlc, + node=initializeitlc, + } } - --- slant and extend - local function initializeslant(tfmdata,value) - value = tonumber(value) - if not value then - value = 0 - elseif value > 1 then - value = 1 - elseif value < -1 then - value = -1 - end - tfmdata.parameters.slantfactor = value + value=tonumber(value) + if not value then + value=0 + elseif value>1 then + value=1 + elseif value<-1 then + value=-1 + end + tfmdata.parameters.slantfactor=value end - otffeatures.register { - name = "slant", - description = "slant glyphs", - initializers = { - base = initializeslant, - node = initializeslant, - } + name="slant", + description="slant glyphs", + initializers={ + base=initializeslant, + node=initializeslant, + } } - local function initializeextend(tfmdata,value) - value = tonumber(value) - if not value then - value = 0 - elseif value > 10 then - value = 10 - elseif value < -10 then - value = -10 - end - tfmdata.parameters.extendfactor = value + value=tonumber(value) + if not value then + value=0 + elseif value>10 then + value=10 + elseif value<-10 then + value=-10 + end + tfmdata.parameters.extendfactor=value end - otffeatures.register { - name = "extend", - description = "scale glyphs horizontally", - initializers = { - base = initializeextend, - node = initializeextend, - } + name="extend", + description="scale glyphs horizontally", + initializers={ + base=initializeextend, + node=initializeextend, + } } - --- expansion and protrusion - -fonts.protrusions = fonts.protrusions or { } -fonts.protrusions.setups = fonts.protrusions.setups or { } - -local setups = fonts.protrusions.setups - +fonts.protrusions=fonts.protrusions or {} +fonts.protrusions.setups=fonts.protrusions.setups or {} +local setups=fonts.protrusions.setups local function initializeprotrusion(tfmdata,value) - if value then - local setup = setups[value] - if setup then - local factor, left, right = setup.factor or 1, setup.left or 1, setup.right or 1 - local emwidth = tfmdata.parameters.quad - tfmdata.parameters.protrusion = { - auto = true, - } - for i, chr in next, tfmdata.characters do - local v, pl, pr = setup[i], nil, nil - if v then - pl, pr = v[1], v[2] - end - if pl and pl ~= 0 then chr.left_protruding = left *pl*factor end - if pr and pr ~= 0 then chr.right_protruding = right*pr*factor end - end + if value then + local setup=setups[value] + if setup then + local factor,left,right=setup.factor or 1,setup.left or 1,setup.right or 1 + local emwidth=tfmdata.parameters.quad + tfmdata.parameters.protrusion={ + auto=true, + } + for i,chr in next,tfmdata.characters do + local v,pl,pr=setup[i],nil,nil + if v then + pl,pr=v[1],v[2] end + if pl and pl~=0 then chr.left_protruding=left*pl*factor end + if pr and pr~=0 then chr.right_protruding=right*pr*factor end + end end + end end - otffeatures.register { - name = "protrusion", - description = "shift characters into the left and or right margin", - initializers = { - base = initializeprotrusion, - node = initializeprotrusion, - } + name="protrusion", + description="shift characters into the left and or right margin", + initializers={ + base=initializeprotrusion, + node=initializeprotrusion, + } } - -fonts.expansions = fonts.expansions or { } -fonts.expansions.setups = fonts.expansions.setups or { } - -local setups = fonts.expansions.setups - +fonts.expansions=fonts.expansions or {} +fonts.expansions.setups=fonts.expansions.setups or {} +local setups=fonts.expansions.setups local function initializeexpansion(tfmdata,value) - if value then - local setup = setups[value] - if setup then - local factor = setup.factor or 1 - tfmdata.parameters.expansion = { - stretch = 10 * (setup.stretch or 0), - shrink = 10 * (setup.shrink or 0), - step = 10 * (setup.step or 0), - auto = true, - } - for i, chr in next, tfmdata.characters do - local v = setup[i] - if v and v ~= 0 then - chr.expansion_factor = v*factor - else -- can be option - chr.expansion_factor = factor - end - end - end - end + if value then + local setup=setups[value] + if setup then + local factor=setup.factor or 1 + tfmdata.parameters.expansion={ + stretch=10*(setup.stretch or 0), + shrink=10*(setup.shrink or 0), + step=10*(setup.step or 0), + auto=true, + } + for i,chr in next,tfmdata.characters do + local v=setup[i] + if v and v~=0 then + chr.expansion_factor=v*factor + else + chr.expansion_factor=factor + end + end + end + end end - otffeatures.register { - name = "expansion", - description = "apply hz optimization", - initializers = { - base = initializeexpansion, - node = initializeexpansion, - } + name="expansion", + description="apply hz optimization", + initializers={ + base=initializeexpansion, + node=initializeexpansion, + } } - --- left over - function fonts.loggers.onetimemessage() end - --- example vectors - -local byte = string.byte - -fonts.expansions.setups['default'] = { - - stretch = 2, shrink = 2, step = .5, factor = 1, - - [byte('A')] = 0.5, [byte('B')] = 0.7, [byte('C')] = 0.7, [byte('D')] = 0.5, [byte('E')] = 0.7, - [byte('F')] = 0.7, [byte('G')] = 0.5, [byte('H')] = 0.7, [byte('K')] = 0.7, [byte('M')] = 0.7, - [byte('N')] = 0.7, [byte('O')] = 0.5, [byte('P')] = 0.7, [byte('Q')] = 0.5, [byte('R')] = 0.7, - [byte('S')] = 0.7, [byte('U')] = 0.7, [byte('W')] = 0.7, [byte('Z')] = 0.7, - [byte('a')] = 0.7, [byte('b')] = 0.7, [byte('c')] = 0.7, [byte('d')] = 0.7, [byte('e')] = 0.7, - [byte('g')] = 0.7, [byte('h')] = 0.7, [byte('k')] = 0.7, [byte('m')] = 0.7, [byte('n')] = 0.7, - [byte('o')] = 0.7, [byte('p')] = 0.7, [byte('q')] = 0.7, [byte('s')] = 0.7, [byte('u')] = 0.7, - [byte('w')] = 0.7, [byte('z')] = 0.7, - [byte('2')] = 0.7, [byte('3')] = 0.7, [byte('6')] = 0.7, [byte('8')] = 0.7, [byte('9')] = 0.7, +local byte=string.byte +fonts.expansions.setups['default']={ + stretch=2,shrink=2,step=.5,factor=1, + [byte('A')]=0.5,[byte('B')]=0.7,[byte('C')]=0.7,[byte('D')]=0.5,[byte('E')]=0.7, + [byte('F')]=0.7,[byte('G')]=0.5,[byte('H')]=0.7,[byte('K')]=0.7,[byte('M')]=0.7, + [byte('N')]=0.7,[byte('O')]=0.5,[byte('P')]=0.7,[byte('Q')]=0.5,[byte('R')]=0.7, + [byte('S')]=0.7,[byte('U')]=0.7,[byte('W')]=0.7,[byte('Z')]=0.7, + [byte('a')]=0.7,[byte('b')]=0.7,[byte('c')]=0.7,[byte('d')]=0.7,[byte('e')]=0.7, + [byte('g')]=0.7,[byte('h')]=0.7,[byte('k')]=0.7,[byte('m')]=0.7,[byte('n')]=0.7, + [byte('o')]=0.7,[byte('p')]=0.7,[byte('q')]=0.7,[byte('s')]=0.7,[byte('u')]=0.7, + [byte('w')]=0.7,[byte('z')]=0.7, + [byte('2')]=0.7,[byte('3')]=0.7,[byte('6')]=0.7,[byte('8')]=0.7,[byte('9')]=0.7, } - -fonts.protrusions.setups['default'] = { - - factor = 1, left = 1, right = 1, - - [0x002C] = { 0, 1 }, -- comma - [0x002E] = { 0, 1 }, -- period - [0x003A] = { 0, 1 }, -- colon - [0x003B] = { 0, 1 }, -- semicolon - [0x002D] = { 0, 1 }, -- hyphen - [0x2013] = { 0, 0.50 }, -- endash - [0x2014] = { 0, 0.33 }, -- emdash - [0x3001] = { 0, 1 }, -- ideographic comma 、 - [0x3002] = { 0, 1 }, -- ideographic full stop 。 - [0x060C] = { 0, 1 }, -- arabic comma ، - [0x061B] = { 0, 1 }, -- arabic semicolon ؛ - [0x06D4] = { 0, 1 }, -- arabic full stop ۔ - +fonts.protrusions.setups['default']={ + factor=1,left=1,right=1, + [0x002C]={ 0,1 }, + [0x002E]={ 0,1 }, + [0x003A]={ 0,1 }, + [0x003B]={ 0,1 }, + [0x002D]={ 0,1 }, + [0x2013]={ 0,0.50 }, + [0x2014]={ 0,0.33 }, + [0x3001]={ 0,1 }, + [0x3002]={ 0,1 }, + [0x060C]={ 0,1 }, + [0x061B]={ 0,1 }, + [0x06D4]={ 0,1 }, } - --- normalizer - -fonts.handlers.otf.features.normalize = function(t) - if t.rand then - t.rand = "random" - end - return t +fonts.handlers.otf.features.normalize=function(t) + if t.rand then + t.rand="random" + end + return t end - --- bonus - function fonts.helpers.nametoslot(name) - local t = type(name) - if t == "string" then - local tfmdata = fonts.hashes.identifiers[currentfont()] - local shared = tfmdata and tfmdata.shared - local fntdata = shared and shared.rawdata - return fntdata and fntdata.resources.unicodes[name] - elseif t == "number" then - return n - end + local t=type(name) + if t=="string" then + local tfmdata=fonts.hashes.identifiers[currentfont()] + local shared=tfmdata and tfmdata.shared + local fntdata=shared and shared.rawdata + return fntdata and fntdata.resources.unicodes[name] + elseif t=="number" then + return n + end end - --- \font\test=file:somefont:reencode=mymessup --- --- fonts.encodings.reencodings.mymessup = { --- [109] = 110, -- m --- [110] = 109, -- n --- } - -fonts.encodings = fonts.encodings or { } -local reencodings = { } -fonts.encodings.reencodings = reencodings - +fonts.encodings=fonts.encodings or {} +local reencodings={} +fonts.encodings.reencodings=reencodings local function specialreencode(tfmdata,value) - -- we forget about kerns as we assume symbols and we - -- could issue a message if ther are kerns but it's - -- a hack anyway so we odn't care too much here - local encoding = value and reencodings[value] - if encoding then - local temp = { } - local char = tfmdata.characters - for k, v in next, encoding do - temp[k] = char[v] - end - for k, v in next, temp do - char[k] = temp[k] - end - -- if we use the font otherwise luatex gets confused so - -- we return an additional hash component for fullname - return string.format("reencoded:%s",value) + local encoding=value and reencodings[value] + if encoding then + local temp={} + local char=tfmdata.characters + for k,v in next,encoding do + temp[k]=char[v] end + for k,v in next,temp do + char[k]=temp[k] + end + return string.format("reencoded:%s",value) + end end - local function reencode(tfmdata,value) - tfmdata.postprocessors = tfmdata.postprocessors or { } - table.insert(tfmdata.postprocessors, - function(tfmdata) - return specialreencode(tfmdata,value) - end - ) + tfmdata.postprocessors=tfmdata.postprocessors or {} + table.insert(tfmdata.postprocessors, + function(tfmdata) + return specialreencode(tfmdata,value) + end + ) end - otffeatures.register { - name = "reencode", - description = "reencode characters", - manipulators = { - base = reencode, - node = reencode, - } + name="reencode", + description="reencode characters", + manipulators={ + base=reencode, + node=reencode, + } } end -- closure do -- begin closure to overcome local limits and interference -if not modules then modules = { } end modules ['luatex-fonts-cbk'] = { - version = 1.001, - comment = "companion to luatex-*.tex", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" +if not modules then modules={} end modules ['luatex-fonts-cbk']={ + version=1.001, + comment="companion to luatex-*.tex", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" } - if context then - texio.write_nl("fatal error: this module is not for context") - os.exit() + texio.write_nl("fatal error: this module is not for context") + os.exit() end - -local fonts = fonts -local nodes = nodes - --- Fonts: (might move to node-gef.lua) - -local traverse_id = node.traverse_id -local glyph_code = nodes.nodecodes.glyph - +local fonts=fonts +local nodes=nodes +local traverse_id=node.traverse_id +local glyph_code=nodes.nodecodes.glyph function nodes.handlers.characters(head) - local fontdata = fonts.hashes.identifiers - if fontdata then - local usedfonts, done, prevfont = { }, false, nil - for n in traverse_id(glyph_code,head) do - local font = n.font - if font ~= prevfont then - prevfont = font - local used = usedfonts[font] - if not used then - local tfmdata = fontdata[font] -- - if tfmdata then - local shared = tfmdata.shared -- we need to check shared, only when same features - if shared then - local processors = shared.processes - if processors and #processors > 0 then - usedfonts[font] = processors - done = true - end - end - end - end - end - end - if done then - for font, processors in next, usedfonts do - for i=1,#processors do - local h, d = processors[i](head,font,0) - head, done = h or head, done or d - end - end - end - return head, true - else - return head, false - end + local fontdata=fonts.hashes.identifiers + if fontdata then + local usedfonts,done,prevfont={},false,nil + for n in traverse_id(glyph_code,head) do + local font=n.font + if font~=prevfont then + prevfont=font + local used=usedfonts[font] + if not used then + local tfmdata=fontdata[font] + if tfmdata then + local shared=tfmdata.shared + if shared then + local processors=shared.processes + if processors and #processors>0 then + usedfonts[font]=processors + done=true + end + end + end + end + end + end + if done then + for font,processors in next,usedfonts do + for i=1,#processors do + local h,d=processors[i](head,font,0) + head,done=h or head,done or d + end + end + end + return head,true + else + return head,false + end end - function nodes.simple_font_handler(head) --- lang.hyphenate(head) - head = nodes.handlers.characters(head) - nodes.injections.handler(head) - nodes.handlers.protectglyphs(head) - head = node.ligaturing(head) - head = node.kerning(head) - return head + head=nodes.handlers.characters(head) + nodes.injections.handler(head) + nodes.handlers.protectglyphs(head) + head=node.ligaturing(head) + head=node.kerning(head) + return head end end -- closure diff --git a/tex/generic/context/luatex/luatex-fonts.lua b/tex/generic/context/luatex/luatex-fonts.lua index 6b502cd24..f0ff3e12d 100644 --- a/tex/generic/context/luatex/luatex-fonts.lua +++ b/tex/generic/context/luatex/luatex-fonts.lua @@ -6,21 +6,16 @@ if not modules then modules = { } end modules ['luatex-fonts'] = { license = "see context related readme files" } --- The following code isolates the generic ConTeXt code from already --- defined or to be defined namespaces. This is the reference loader --- for plain, but the generic code is also used in luaotfload (which --- is is a file meant for latex) and that is maintained by Khaled +-- The following code isolates the generic context code from already defined or to be defined +-- namespaces. This is the reference loader for plain, but the generic code is also used in +-- luaotfload (which is is a file meant for latex) and that used to be maintained by Khaled -- Hosny. We do our best to keep the interface as clean as possible. -- --- The code base is rather stable now, especially if you stay away from --- the non generic code. All relevant data is organized in tables within --- the main table of a font instance. There are a few places where in --- context other code is plugged in, but this does not affect the core --- code. Users can (given that their macro package provides this option) --- access the font data (characters, descriptions, properties, parameters, --- etc) of this main table. --- --- Todo: all global namespaces in called modules will get local shortcuts. +-- The code base is rather stable now, especially if you stay away from the non generic code. All +-- relevant data is organized in tables within the main table of a font instance. There are a few +-- places where in context other code is plugged in, but this does not affect the core code. Users +-- can (given that their macro package provides this option) access the font data (characters, +-- descriptions, properties, parameters, etc) of this main table. utf = utf or unicode.utf8 @@ -67,20 +62,21 @@ end local whatever = generic_context.push_namespaces() --- We keep track of load time by storing the current time. That --- way we cannot be accused of slowing down loading too much. +-- We keep track of load time by storing the current time. That way we cannot be accused +-- of slowing down loading too much. Anyhow, there is no reason for this library to perform +-- slower in any other package as it does in context. -- --- Please don't update to this version without proper testing. It --- might be that this version lags behind stock context and the only --- formal release takes place around tex live code freeze. +-- Please don't update to this version without proper testing. It might be that this version +-- lags behind stock context and the only formal release takes place around tex live code +-- freeze. local starttime = os.gettimeofday() --- As we don't use the ConTeXt file searching, we need to --- initialize the kpse library. As the progname can be anything --- we will temporary switch to the ConTeXt namespace if needed. --- Just adding the context paths to the path specification is --- somewhat faster +-- As we don't use the context file searching, we need to initialize the kpse library. As the +-- progname can be anything we will temporary switch to the context namespace if needed. Just +-- adding the context paths to the path specification is somewhat faster. +-- +-- Now, with lua 5.2 being used we might create a special ENV for this. -- kpse.set_program_name("luatex") @@ -128,43 +124,51 @@ if fonts then else - -- The following helpers are a bit overkill but I don't want to - -- mess up ConTeXt code for the sake of general generality. Around - -- version 1.0 there will be an official api defined. - - loadmodule('l-lpeg.lua') - loadmodule('l-function.lua') - loadmodule('l-string.lua') - loadmodule('l-table.lua') - loadmodule('l-boolean.lua') - loadmodule('l-math.lua') - loadmodule('l-file.lua') - loadmodule('l-io.lua') - - -- The following modules contain code that is either not used - -- at all outside ConTeXt or will fail when enabled due to - -- lack of other modules. - - -- First we load a few helper modules. This is about the miminum - -- needed to let the font modules do their work. Don't depend on - -- their functions as we might strip them in future versions of - -- this generic variant. + -- The following helpers are a bit overkill but I don't want to mess up context code for the + -- sake of general generality. Around version 1.0 there will be an official api defined. + -- + -- So, I will strip these libraries and see what is really needed so that we don't have this + -- overhead in the generic modules. The next section is only there for the packager, so stick + -- to using luatex-fonts with luatex-fonts-merged.lua and forget about the rest. The following + -- list might change without prior notice (for instance because we shuffled code around). + + ----------("l-lua.lua") + loadmodule("l-lpeg.lua") + loadmodule("l-function.lua") + loadmodule("l-string.lua") + loadmodule("l-table.lua") + loadmodule("l-io.lua") + ----------("l-number.lua") + ----------("l-set.lua") + ----------("l-os.lua") + loadmodule("l-file.lua") + ----------("l-md5.lua") + ----------("l-url.lua") + ----------("l-dir.lua") + loadmodule("l-boolean.lua") + ----------("l-unicode.lua") + loadmodule("l-math.lua") + + + -- The following modules contain code that is either not used at all outside context or will fail + -- when enabled due to lack of other modules. + + -- First we load a few helper modules. This is about the miminum needed to let the font modules do + -- their work. Don't depend on their functions as we might strip them in future versions of his + -- generic variant. loadmodule('luatex-basics-gen.lua') loadmodule('data-con.lua') - -- We do need some basic node support. The code in there is not for - -- general use as it might change. + -- We do need some basic node support. The code in there is not for general use as it might change. loadmodule('luatex-basics-nod.lua') - -- Now come the font modules that deal with traditional TeX fonts - -- as well as open type fonts. We only support OpenType fonts here. + -- Now come the font modules that deal with traditional tex fonts as well as open type fonts. We only + -- support OpenType fonts here. -- - -- The font database file (if used at all) must be put someplace - -- visible for kpse and is not shared with ConTeXt. The mtx-fonts - -- script can be used to genate this file (using the --names - -- option). + -- The font database file (if used at all) must be put someplace visible for kpse and is not shared + -- with context. The mtx-fonts script can be used to genate this file (using the --names option). loadmodule('font-ini.lua') loadmodule('font-con.lua') @@ -179,14 +183,14 @@ else loadmodule('node-inj.lua') -- will be replaced (luatex >= .70) loadmodule('font-ota.lua') loadmodule('font-otn.lua') - -- loadmodule('luatex-fonts-chr.lua') + ----------('luatex-fonts-chr.lua') loadmodule('luatex-fonts-lua.lua') loadmodule('font-def.lua') loadmodule('luatex-fonts-def.lua') loadmodule('luatex-fonts-ext.lua') -- some extensions - -- We need to plug into a callback and the following module implements - -- the handlers. Actual plugging in happens later. + -- We need to plug into a callback and the following module implements the handlers. Actual plugging + -- in happens later. loadmodule('luatex-fonts-cbk.lua') @@ -194,9 +198,8 @@ end resolvers.loadmodule = loadmodule --- In order to deal with the fonts we need to initialize some --- callbacks. One can overload them later on if needed. First --- a bit of abstraction. +-- In order to deal with the fonts we need to initialize some callbacks. One can overload them later on if +-- needed. First a bit of abstraction. generic_context.callback_ligaturing = false generic_context.callback_kerning = false @@ -204,9 +207,10 @@ generic_context.callback_pre_linebreak_filter = nodes.simple_font_handler generic_context.callback_hpack_filter = nodes.simple_font_handler generic_context.callback_define_font = fonts.definers.read --- The next ones can be done at a different moment if needed. You can create --- a generic_context namespace and set no_callbacks_yet to true, load this --- module, and enable the callbacks later. +-- The next ones can be done at a different moment if needed. You can create a generic_context namespace +-- and set no_callbacks_yet to true, load this module, and enable the callbacks later. So, there is really +-- *no* need to create a alternative for luatex-fonts.lua and luatex-fonts-merged.lua: just load this one +-- and overload if needed. if not generic_context.no_callbacks_yet then -- cgit v1.2.3