From cc18ba7390f931c0dca7df0d775871c7f375d8ba Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sat, 24 Aug 2013 13:48:56 +0200 Subject: [db] keep formats when doing a live db update --- luaotfload-database.lua | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/luaotfload-database.lua b/luaotfload-database.lua index d8c934d..2dbc20c 100644 --- a/luaotfload-database.lua +++ b/luaotfload-database.lua @@ -810,8 +810,7 @@ resolve = function (_, _, specification) -- the 1st two parameters are used by C --- but it’s not a table, e.g. it contains an integer. if not fonts_reloaded then return reload_db("invalid database; not a table", - resolve, nil, nil, specification - ) + resolve, nil, nil, specification) end --- unsucessfully reloaded; bail return specification.name, false, false @@ -1004,12 +1003,21 @@ end --- string -> ('a -> 'a) -> 'a list -> 'a reload_db = function (why, caller, ...) - report ("both", 1, "db", "Reload initiated; reason: %q", why) + local namedata = names.data + local formats = tableconcat (namedata.formats, ",") + + report ("both", 1, "db", + "Reload initiated (formats: %s); reason: %q", + formats, why) + + set_font_filter (formats) names.data = update_names (names.data, false, false) + if names.data then fonts_reloaded = true return caller (...) end + report ("both", 0, "db", "Database update unsuccessful.") end -- cgit v1.2.3 From a08ab16564f8c4e4f1b95363fb35332308ee7176 Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:00:17 +0200 Subject: [type1] restore earlier version of ``luaotfload-loaders.lua`` MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hans kindly added AFM support to the merged package so we don’t need to integrate it ourselves any longer. However, this concerns only support for basic loading. For this reason we continue loading our imported version of the font feature definitions (``fonts.handlers.afm.helpdata``) in ``font-afk.lua``. --- luaotfload-loaders.lua | 152 +++++-------------------------------------------- 1 file changed, 13 insertions(+), 139 deletions(-) diff --git a/luaotfload-loaders.lua b/luaotfload-loaders.lua index 6d6f409..20eb277 100644 --- a/luaotfload-loaders.lua +++ b/luaotfload-loaders.lua @@ -11,158 +11,32 @@ local readers = fonts.readers local handlers = fonts.handlers local formats = fonts.formats -local lfsisfile = lfs.isfile -local fileaddsuffix = file.addsuffix -local filebasename = file.basename -local stringsub = string.sub -local stringlower = string.lower -local stringupper = string.upper -local findbinfile = resolvers.findbinfile - -local lpeg = require "lpeg" -local lpegmatch = lpeg.match -local P, S, Cp = lpeg.P, lpeg.S, lpeg.Cp - -resolvers.openbinfile = function (filename) - if filename and filename ~= "" then - local f = io.open(filename,"rb") - if f then - --logs.show_load(filename) - local s = f:read("*a") -- io.readall(f) is faster but we never have large files here - if checkgarbage then - checkgarbage(#s) - end - f:close() - if s then - return true, s, #s - end - end - end - return loaders.notfound() -end - -resolvers.loadbinfile = function (filename, filetype) - - local fname = kpse.find_file (filename, filetype) - - if fname and fname ~= "" then - return resolvers.openbinfile(fname) - else - return resolvers.loaders.notfound() - end - -end - ---- this function is required because AFM precedes TFM in the reader ---- chain (see definers.loadfont() in font-def.lua - -local check_tfm = function (specification, fullname) - - local foundname = findbinfile (fullname, "tfm") or "" - - if foundname == "" then - foundname = findbinfile (fullname, "ofm") or "" - end - - if foundname == "" then - foundname = fonts.names.getfilename (fullname,"tfm") or "" - end - - if foundname ~= "" then - specification.filename = foundname - specification.format = "ofm" - return font.read_tfm (specification.filename, - specification.size) - end -end - -readers.check_tfm = check_tfm - ---[[ ]] - --[[doc-- - Here we load extra AFM libraries from Context. - In fact, part of the AFM support is contained in font-ext.lua, for - which the font loader has a replacement: luatex-fonts-ext.lua. - However, this is only a stripped down version with everything AFM - removed. For example, it lacks definitions of several AFM features - like italic correction, protrusion, expansion and so on. In order to - achieve full-fledged AFM support we will either have to implement our - own version of these or consult with Hans whether he would consider - including the AFM code with the font loader. + As of 2013-08-25 AFM support has been included in the fontloader + package. - For the time being we stick with two AFM-specific libraries: - font-afm.lua and font-afk.lua. When combined, these already supply us - with basic features like kerning and ligatures. The rest can be added - in due time. + We still have to load the font feature definitions (font-afk.lua) to + achieve kerning and ligatures. --doc]]-- -require "luaotfload-font-afm.lua" require "luaotfload-font-afk.lua" ---[[ ]] - ---[[doc-- - - The PFB/PFA reader checks whether there is a corresponding AFM file - and hands the spec over to the AFM loader if appropriate. Context - uses string.gsub() to accomplish this but that can cause collateral - damage. - ---doc]]-- - -local mk_type1_reader = function (format) - - format = stringlower (format) - local first = stringsub (format, 1, 1) - local second = stringsub (format, 2, 2) - local third = stringsub (format, 3, 3) - - local p_format = P"." - * (P(first) + P(stringupper (first))) - * (P(second) + P(stringupper (second))) - * (P(third) + P(stringupper (third))) - --- we have to be careful here so we don’t affect - --- harmless substrings - * (P"(" --- subfont - + P":" --- feature list - + P(-1)) --- end of string - local no_format = 1 - p_format - local p_format_file = no_format^1 * Cp() * p_format * Cp() - - local reader = function (specification, method) - - local afmfile = fileaddsuffix (specification.name, "afm") - - if lfsisfile (afmfile) then - --- switch to afm reader - logs.names_report ("log", 0, "type1", - "Found corresponding AFM file %s, using that.", - filebasename (afmfile)) - local oldspec = specification.specification - local before, after = lpegmatch (p_format_file, oldspec) - specification.specification = stringsub (oldspec, 1, before) - .. "afm" - .. stringsub (oldspec, after - 1) - specification.forced = "afm" - return readers.afm (specification, method) - end - - --- else read pfb via opentype mechanism - return readers.opentype (specification, format, "type1") - end - - return reader +local pfb_reader = function (specification) + return readers.opentype (specification, "pfb", "type1") +end + +local pfa_reader = function (specification) + return readers.opentype (specification, "pfa", "type1") end formats.pfa = "type1" -readers.pfa = mk_type1_reader "pfa" +readers.pfa = pfa_reader handlers.pfa = { } formats.pfb = "type1" -readers.pfb = mk_type1_reader "pfb" -handlers.pfb = { } --- empty, as with tfm +readers.pfb = pfb_reader +handlers.pfb = { } -- vim:tw=71:sw=2:ts=2:expandtab -- cgit v1.2.3 From cb9cb98643e1b3bcd846c11e7a7733f1d6ef20f3 Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:04:55 +0200 Subject: [fontloader] sync with Context as of 2013-08-25 --- luaotfload-merged.lua | 929 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 928 insertions(+), 1 deletion(-) diff --git a/luaotfload-merged.lua b/luaotfload-merged.lua index 0a19be1..b39d4a8 100644 --- a/luaotfload-merged.lua +++ b/luaotfload-merged.lua @@ -1,6 +1,6 @@ -- merged file : luatex-fonts-merged.lua -- parent file : luatex-fonts.lua --- merge date : 08/24/13 12:19:21 +-- merge date : 08/24/13 13:59:18 do -- begin closure to overcome local limits and interference @@ -3060,6 +3060,7 @@ local remapper={ fea="font feature files", pfa="type1 fonts", pfb="type1 fonts", + afm="afm", } function resolvers.findfile(name,fileformat) name=string.gsub(name,"\\","/") @@ -3078,6 +3079,10 @@ function resolvers.findfile(name,fileformat) return found end resolvers.findbinfile=resolvers.findfile +function resolvers.loadbinfile(filename,filetype) + local data=io.loaddata(filename) + return true,data,#data +end function resolvers.resolve(s) return s end @@ -5065,6 +5070,928 @@ end -- closure do -- begin closure to overcome local limits and interference +if not modules then modules={} end modules ['font-tfm']={ + 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=next +local match=string.match +local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end) +local trace_features=false trackers.register("tfm.features",function(v) trace_features=v end) +local report_defining=logs.reporter("fonts","defining") +local report_tfm=logs.reporter("fonts","tfm loading") +local findbinfile=resolvers.findbinfile +local fonts=fonts +local handlers=fonts.handlers +local readers=fonts.readers +local constructors=fonts.constructors +local encodings=fonts.encodings +local tfm=constructors.newhandler("tfm") +local tfmfeatures=constructors.newfeatures("tfm") +local registertfmfeature=tfmfeatures.register +constructors.resolvevirtualtoo=false +fonts.formats.tfm="type1" +function tfm.setfeatures(tfmdata,features) + local okay=constructors.initializefeatures("tfm",tfmdata,features,trace_features,report_tfm) + if okay then + return constructors.collectprocessors("tfm",tfmdata,features,trace_features,report_tfm) + else + return {} + end +end +local function read_from_tfm(specification) + local filename=specification.filename + local size=specification.size + if trace_defining then + report_defining("loading tfm file %a at size %s",filename,size) + end + local tfmdata=font.read_tfm(filename,size) + if tfmdata then + local features=specification.features and specification.features.normal or {} + local resources=tfmdata.resources or {} + local properties=tfmdata.properties or {} + local parameters=tfmdata.parameters or {} + local shared=tfmdata.shared or {} + properties.name=tfmdata.name + properties.fontname=tfmdata.fontname + properties.psname=tfmdata.psname + properties.filename=specification.filename + parameters.size=size + shared.rawdata={} + shared.features=features + shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil + tfmdata.properties=properties + tfmdata.resources=resources + tfmdata.parameters=parameters + tfmdata.shared=shared + parameters.slant=parameters.slant or parameters[1] or 0 + parameters.space=parameters.space or parameters[2] or 0 + parameters.space_stretch=parameters.space_stretch or parameters[3] or 0 + parameters.space_shrink=parameters.space_shrink or parameters[4] or 0 + parameters.x_height=parameters.x_height or parameters[5] or 0 + parameters.quad=parameters.quad or parameters[6] or 0 + parameters.extra_space=parameters.extra_space or parameters[7] or 0 + constructors.enhanceparameters(parameters) + if constructors.resolvevirtualtoo then + fonts.loggers.register(tfmdata,file.suffix(filename),specification) + local vfname=findbinfile(specification.name,'ovf') + if vfname and vfname~="" then + local vfdata=font.read_vf(vfname,size) + if vfdata then + local chars=tfmdata.characters + for k,v in next,vfdata.characters do + chars[k].commands=v.commands + end + properties.virtualized=true + tfmdata.fonts=vfdata.fonts + end + end + end + local allfeatures=tfmdata.shared.features or specification.features.normal + constructors.applymanipulators("tfm",tfmdata,allfeatures.normal,trace_features,report_tfm) + if not features.encoding then + local encoding,filename=match(properties.filename,"^(.-)%-(.*)$") + if filename and encoding and encodings.known and encodings.known[encoding] then + features.encoding=encoding + end + end + return tfmdata + end +end +local function check_tfm(specification,fullname) + local foundname=findbinfile(fullname,'tfm') or "" + if foundname=="" then + foundname=findbinfile(fullname,'ofm') or "" + end + if foundname=="" then + foundname=fonts.names.getfilename(fullname,"tfm") or "" + end + if foundname~="" then + specification.filename=foundname + specification.format="ofm" + return read_from_tfm(specification) + elseif trace_defining then + report_defining("loading tfm with name %a fails",specification.name) + end +end +readers.check_tfm=check_tfm +function 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 + return check_tfm(specification,fullname) +end + +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['font-afm']={ + 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 fonts,logs,trackers,containers,resolvers=fonts,logs,trackers,containers,resolvers +local next,type,tonumber=next,type,tonumber +local format,match,gmatch,lower,gsub,strip=string.format,string.match,string.gmatch,string.lower,string.gsub,string.strip +local abs=math.abs +local P,S,C,R,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.C,lpeg.R,lpeg.match,lpeg.patterns +local derivetable=table.derive +local trace_features=false trackers.register("afm.features",function(v) trace_features=v end) +local trace_indexing=false trackers.register("afm.indexing",function(v) trace_indexing=v end) +local trace_loading=false trackers.register("afm.loading",function(v) trace_loading=v end) +local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end) +local report_afm=logs.reporter("fonts","afm loading") +local findbinfile=resolvers.findbinfile +local definers=fonts.definers +local readers=fonts.readers +local constructors=fonts.constructors +local afm=constructors.newhandler("afm") +local pfb=constructors.newhandler("pfb") +local afmfeatures=constructors.newfeatures("afm") +local registerafmfeature=afmfeatures.register +afm.version=1.410 +afm.cache=containers.define("fonts","afm",afm.version,true) +afm.autoprefixed=true +afm.helpdata={} +afm.syncspace=true +afm.addligatures=true +afm.addtexligatures=true +afm.addkerns=true +local function setmode(tfmdata,value) + if value then + tfmdata.properties.mode=lower(value) + end +end +registerafmfeature { + name="mode", + description="mode", + initializers={ + base=setmode, + node=setmode, + } +} +local comment=P("Comment") +local spacing=patterns.spacer +local lineend=patterns.newline +local words=C((1-lineend)^1) +local number=C((R("09")+S("."))^1)/tonumber*spacing^0 +local data=lpeg.Carg(1) +local pattern=( + comment*spacing*( + data*( + ("CODINGSCHEME"*spacing*words )/function(fd,a) end+("DESIGNSIZE"*spacing*number*words )/function(fd,a) fd[ 1]=a end+("CHECKSUM"*spacing*number*words )/function(fd,a) fd[ 2]=a end+("SPACE"*spacing*number*"plus"*number*"minus"*number)/function(fd,a,b,c) fd[ 3],fd[ 4],fd[ 5]=a,b,c end+("QUAD"*spacing*number )/function(fd,a) fd[ 6]=a end+("EXTRASPACE"*spacing*number )/function(fd,a) fd[ 7]=a end+("NUM"*spacing*number*number*number )/function(fd,a,b,c) fd[ 8],fd[ 9],fd[10]=a,b,c end+("DENOM"*spacing*number*number )/function(fd,a,b ) fd[11],fd[12]=a,b end+("SUP"*spacing*number*number*number )/function(fd,a,b,c) fd[13],fd[14],fd[15]=a,b,c end+("SUB"*spacing*number*number )/function(fd,a,b) fd[16],fd[17]=a,b end+("SUPDROP"*spacing*number )/function(fd,a) fd[18]=a end+("SUBDROP"*spacing*number )/function(fd,a) fd[19]=a end+("DELIM"*spacing*number*number )/function(fd,a,b) fd[20],fd[21]=a,b end+("AXISHEIGHT"*spacing*number )/function(fd,a) fd[22]=a end + )+(1-lineend)^0 + )+(1-comment)^1 +)^0 +local function scan_comment(str) + local fd={} + lpegmatch(pattern,str,1,fd) + return fd +end +local keys={} +function keys.FontName (data,line) data.metadata.fontname=strip (line) + data.metadata.fullname=strip (line) end +function keys.ItalicAngle (data,line) data.metadata.italicangle=tonumber (line) end +function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch=toboolean(line,true) end +function keys.CharWidth (data,line) data.metadata.charwidth=tonumber (line) end +function keys.XHeight (data,line) data.metadata.xheight=tonumber (line) end +function keys.Descender (data,line) data.metadata.descender=tonumber (line) end +function keys.Ascender (data,line) data.metadata.ascender=tonumber (line) end +function keys.Comment (data,line) + line=lower(line) + local designsize=match(line,"designsize[^%d]*(%d+)") + if designsize then data.metadata.designsize=tonumber(designsize) end +end +local function get_charmetrics(data,charmetrics,vector) + local characters=data.characters + local chr,ind={},0 + for k,v in gmatch(charmetrics,"([%a]+) +(.-) *;") do + if k=='C' then + v=tonumber(v) + if v<0 then + ind=ind+1 + else + ind=v + end + chr={ + index=ind + } + elseif k=='WX' then + chr.width=tonumber(v) + elseif k=='N' then + characters[v]=chr + elseif k=='B' then + local llx,lly,urx,ury=match(v,"^ *(.-) +(.-) +(.-) +(.-)$") + chr.boundingbox={ tonumber(llx),tonumber(lly),tonumber(urx),tonumber(ury) } + elseif k=='L' then + local plus,becomes=match(v,"^(.-) +(.-)$") + local ligatures=chr.ligatures + if ligatures then + ligatures[plus]=becomes + else + chr.ligatures={ [plus]=becomes } + end + end + end +end +local function get_kernpairs(data,kernpairs) + local characters=data.characters + for one,two,value in gmatch(kernpairs,"KPX +(.-) +(.-) +(.-)\n") do + local chr=characters[one] + if chr then + local kerns=chr.kerns + if kerns then + kerns[two]=tonumber(value) + else + chr.kerns={ [two]=tonumber(value) } + end + end + end +end +local function get_variables(data,fontmetrics) + for key,rest in gmatch(fontmetrics,"(%a+) *(.-)[\n\r]") do + local keyhandler=keys[key] + if keyhandler then + keyhandler(data,rest) + end + end +end +local function get_indexes(data,pfbname) + data.resources.filename=resolvers.unresolve(pfbname) + local pfbblob=fontloader.open(pfbname) + if pfbblob then + local characters=data.characters + local pfbdata=fontloader.to_table(pfbblob) + if pfbdata then + local glyphs=pfbdata.glyphs + if glyphs then + if trace_loading then + report_afm("getting index data from %a",pfbname) + end + for index,glyph in next,glyphs do + local name=glyph.name + if name then + local char=characters[name] + if char then + if trace_indexing then + report_afm("glyph %a has index %a",name,index) + end + char.index=index + end + end + end + elseif trace_loading then + report_afm("no glyph data in pfb file %a",pfbname) + end + elseif trace_loading then + report_afm("no data in pfb file %a",pfbname) + end + fontloader.close(pfbblob) + elseif trace_loading then + report_afm("invalid pfb file %a",pfbname) + end +end +local function readafm(filename) + local ok,afmblob,size=resolvers.loadbinfile(filename) + if ok and afmblob then + local data={ + resources={ + filename=resolvers.unresolve(filename), + version=afm.version, + creator="context mkiv", + }, + properties={ + hasitalics=false, + }, + goodies={}, + metadata={ + filename=file.removesuffix(file.basename(filename)) + }, + characters={ + }, + descriptions={ + }, + } + afmblob=gsub(afmblob,"StartCharMetrics(.-)EndCharMetrics",function(charmetrics) + if trace_loading then + report_afm("loading char metrics") + end + get_charmetrics(data,charmetrics,vector) + return "" + end) + afmblob=gsub(afmblob,"StartKernPairs(.-)EndKernPairs",function(kernpairs) + if trace_loading then + report_afm("loading kern pairs") + end + get_kernpairs(data,kernpairs) + return "" + end) + afmblob=gsub(afmblob,"StartFontMetrics%s+([%d%.]+)(.-)EndFontMetrics",function(version,fontmetrics) + if trace_loading then + report_afm("loading variables") + end + data.afmversion=version + get_variables(data,fontmetrics) + data.fontdimens=scan_comment(fontmetrics) + return "" + end) + return data + else + if trace_loading then + report_afm("no valid afm file %a",filename) + end + return nil + end +end +local addkerns,addligatures,addtexligatures,unify,normalize +function afm.load(filename) + filename=resolvers.findfile(filename,'afm') or "" + if filename~="" then + local name=file.removesuffix(file.basename(filename)) + local data=containers.read(afm.cache,name) + local attr=lfs.attributes(filename) + local size,time=attr.size or 0,attr.modification or 0 + local pfbfile=file.replacesuffix(name,"pfb") + local pfbname=resolvers.findfile(pfbfile,"pfb") or "" + if pfbname=="" then + pfbname=resolvers.findfile(file.basename(pfbfile),"pfb") or "" + end + local pfbsize,pfbtime=0,0 + if pfbname~="" then + local attr=lfs.attributes(pfbname) + pfbsize=attr.size or 0 + pfbtime=attr.modification or 0 + end + if not data or data.size~=size or data.time~=time or data.pfbsize~=pfbsize or data.pfbtime~=pfbtime then + report_afm("reading %a",filename) + data=readafm(filename) + if data then + if pfbname~="" then + get_indexes(data,pfbname) + elseif trace_loading then + report_afm("no pfb file for %a",filename) + end + report_afm("unifying %a",filename) + unify(data,filename) + if afm.addligatures then + report_afm("add ligatures") + addligatures(data) + end + if afm.addtexligatures then + report_afm("add tex ligatures") + addtexligatures(data) + end + if afm.addkerns then + report_afm("add extra kerns") + addkerns(data) + end + normalize(data) + report_afm("add tounicode data") + fonts.mappings.addtounicode(data,filename) + data.size=size + data.time=time + data.pfbsize=pfbsize + data.pfbtime=pfbtime + report_afm("saving %a in cache",name) + data=containers.write(afm.cache,name,data) + data=containers.read(afm.cache,name) + end + end + return data + else + return nil + end +end +local uparser=fonts.mappings.makenameparser() +unify=function(data,filename) + local unicodevector=fonts.encodings.agl.unicodes + local unicodes,names={},{} + local private=constructors.privateoffset + local descriptions=data.descriptions + for name,blob in next,data.characters do + local code=unicodevector[name] + if not code then + code=lpegmatch(uparser,name) + if not code then + code=private + private=private+1 + report_afm("assigning private slot %U for unknown glyph name %a",code,name) + end + end + local index=blob.index + unicodes[name]=code + names[name]=index + blob.name=name + descriptions[code]={ + boundingbox=blob.boundingbox, + width=blob.width, + kerns=blob.kerns, + index=index, + name=name, + } + end + for unicode,description in next,descriptions do + local kerns=description.kerns + if kerns then + local krn={} + for name,kern in next,kerns do + local unicode=unicodes[name] + if unicode then + krn[unicode]=kern + else + print(unicode,name) + end + end + description.kerns=krn + end + end + data.characters=nil + local resources=data.resources + local filename=resources.filename or file.removesuffix(file.basename(filename)) + resources.filename=resolvers.unresolve(filename) + resources.unicodes=unicodes + resources.marks={} + resources.names=names + resources.private=private +end +normalize=function(data) +end +local addthem=function(rawdata,ligatures) + if ligatures then + local descriptions=rawdata.descriptions + local resources=rawdata.resources + local unicodes=resources.unicodes + local names=resources.names + for ligname,ligdata in next,ligatures do + local one=descriptions[unicodes[ligname]] + if one then + for _,pair in next,ligdata do + local two,three=unicodes[pair[1]],unicodes[pair[2]] + if two and three then + local ol=one.ligatures + if ol then + if not ol[two] then + ol[two]=three + end + else + one.ligatures={ [two]=three } + end + end + end + end + end + end +end +addligatures=function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end +addtexligatures=function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end +addkerns=function(rawdata) + local descriptions=rawdata.descriptions + local resources=rawdata.resources + local unicodes=resources.unicodes + local function do_it_left(what) + if what then + for unicode,description in next,descriptions do + local kerns=description.kerns + if kerns then + local extrakerns + for complex,simple in next,what do + complex=unicodes[complex] + simple=unicodes[simple] + if complex and simple then + local ks=kerns[simple] + if ks and not kerns[complex] then + if extrakerns then + extrakerns[complex]=ks + else + extrakerns={ [complex]=ks } + end + end + end + end + if extrakerns then + description.extrakerns=extrakerns + end + end + end + end + end + local function do_it_copy(what) + if what then + for complex,simple in next,what do + complex=unicodes[complex] + simple=unicodes[simple] + if complex and simple then + local complexdescription=descriptions[complex] + if complexdescription then + local simpledescription=descriptions[complex] + if simpledescription then + local extrakerns + local kerns=simpledescription.kerns + if kerns then + for unicode,kern in next,kerns do + if extrakerns then + extrakerns[unicode]=kern + else + extrakerns={ [unicode]=kern } + end + end + end + local extrakerns=simpledescription.extrakerns + if extrakerns then + for unicode,kern in next,extrakerns do + if extrakerns then + extrakerns[unicode]=kern + else + extrakerns={ [unicode]=kern } + end + end + end + if extrakerns then + complexdescription.extrakerns=extrakerns + end + end + end + end + end + end + end + do_it_left(afm.helpdata.leftkerned) + do_it_left(afm.helpdata.bothkerned) + do_it_copy(afm.helpdata.bothkerned) + do_it_copy(afm.helpdata.rightkerned) +end +local function adddimensions(data) + if data then + for unicode,description in next,data.descriptions do + local bb=description.boundingbox + if bb then + local ht,dp=bb[4],-bb[2] + if ht==0 or ht<0 then + else + description.height=ht + end + if dp==0 or dp<0 then + else + description.depth=dp + end + end + end + end +end +local function copytotfm(data) + if data and data.descriptions 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 unicodes=resources.unicodes + for unicode,description in next,data.descriptions do + characters[unicode]={} + end + local filename=constructors.checkedfilename(resources) + local fontname=metadata.fontname or metadata.fullname + local fullname=metadata.fullname or metadata.fontname + local endash=unicodes['space'] + local emdash=unicodes['emdash'] + local spacer="space" + local spaceunits=500 + local monospaced=metadata.isfixedpitch + local charwidth=metadata.charwidth + local italicangle=metadata.italicangle + local charxheight=metadata.xheight and metadata.xheight>0 and metadata.xheight + properties.monospaced=monospaced + parameters.italicangle=italicangle + parameters.charwidth=charwidth + parameters.charxheight=charxheight + if properties.monospaced then + if descriptions[endash] then + spaceunits,spacer=descriptions[endash].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[endash] then + spaceunits,spacer=descriptions[endash].width,"space" + end + if not spaceunits and charwidth then + spaceunits,spacer=charwidth,"charwidth" + end + end + spaceunits=tonumber(spaceunits) + if spaceunits<200 then + end + parameters.slant=0 + parameters.space=spaceunits + parameters.space_stretch=500 + parameters.space_shrink=333 + parameters.x_height=400 + parameters.quad=1000 + if italicangle then + parameters.italicangle=italicangle + parameters.italicfactor=math.cos(math.rad(90+italicangle)) + parameters.slant=- math.tan(italicangle*math.pi/180) + end + if monospaced then + parameters.space_stretch=0 + parameters.space_shrink=0 + elseif afm.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=unicodes['x'] + if x then + local x=descriptions[x] + if x then + parameters.x_height=x.height + end + end + end + local fd=data.fontdimens + if fd and fd[8] and fd[9] and fd[10] then + for k,v in next,fd do + parameters[k]=v + end + end + parameters.designsize=(metadata.designsize or 10)*65536 + parameters.ascender=abs(metadata.ascender or 0) + parameters.descender=abs(metadata.descender or 0) + parameters.units=1000 + properties.spacer=spacer + properties.encodingbytes=2 + properties.format=fonts.formats[filename] or "type1" + properties.filename=filename + properties.fontname=fontname + properties.fullname=fullname + properties.psname=fullname + properties.name=filename or fullname or fontname + if next(characters) then + return { + characters=characters, + descriptions=descriptions, + parameters=parameters, + resources=resources, + properties=properties, + goodies=goodies, + } + end + end + return nil +end +function afm.setfeatures(tfmdata,features) + local okay=constructors.initializefeatures("afm",tfmdata,features,trace_features,report_afm) + if okay then + return constructors.collectprocessors("afm",tfmdata,features,trace_features,report_afm) + else + return {} + end +end +local function checkfeatures(specification) +end +local function afmtotfm(specification) + local afmname=specification.filename or specification.name + if specification.forced=="afm" or specification.format=="afm" then + if trace_loading then + report_afm("forcing afm format for %a",afmname) + end + else + local tfmname=findbinfile(afmname,"ofm") or "" + if tfmname~="" then + if trace_loading then + report_afm("fallback from afm to tfm for %a",afmname) + end + return + end + end + if afmname~="" then + local features=constructors.checkedfeatures("afm",specification.features.normal) + specification.features.normal=features + constructors.hashinstance(specification,true) + specification=definers.resolve(specification) + local cache_id=specification.hash + local tfmdata=containers.read(constructors.cache,cache_id) + if not tfmdata then + local rawdata=afm.load(afmname) + if rawdata and next(rawdata) then + adddimensions(rawdata) + tfmdata=copytotfm(rawdata) + if tfmdata and next(tfmdata) then + local shared=tfmdata.shared + if not shared then + shared={} + tfmdata.shared=shared + end + shared.rawdata=rawdata + shared.features=features + shared.processes=afm.setfeatures(tfmdata,features) + end + elseif trace_loading then + report_afm("no (valid) afm file found with name %a",afmname) + end + tfmdata=containers.write(constructors.cache,cache_id,tfmdata) + end + return tfmdata + end +end +local function read_from_afm(specification) + local tfmdata=afmtotfm(specification) + if tfmdata then + tfmdata.properties.name=specification.name + tfmdata=constructors.scale(tfmdata,specification) + local allfeatures=tfmdata.shared.features or specification.features.normal + constructors.applymanipulators("afm",tfmdata,allfeatures,trace_features,report_afm) + fonts.loggers.register(tfmdata,'afm',specification) + end + return tfmdata +end +local function prepareligatures(tfmdata,ligatures,value) + if value then + local descriptions=tfmdata.descriptions + for unicode,character in next,tfmdata.characters do + local description=descriptions[unicode] + local dligatures=description.ligatures + if dligatures then + local cligatures=character.ligatures + if not cligatures then + cligatures={} + character.ligatures=cligatures + end + for unicode,ligature in next,dligatures do + cligatures[unicode]={ + char=ligature, + type=0 + } + end + end + end + end +end +local function preparekerns(tfmdata,kerns,value) + if value then + local rawdata=tfmdata.shared.rawdata + local resources=rawdata.resources + local unicodes=resources.unicodes + local descriptions=tfmdata.descriptions + for u,chr in next,tfmdata.characters do + local d=descriptions[u] + local newkerns=d[kerns] + if newkerns then + local kerns=chr.kerns + if not kerns then + kerns={} + chr.kerns=kerns + end + for k,v in next,newkerns do + local uk=unicodes[k] + if uk then + kerns[uk]=v + end + end + end + end + end +end +local list={ + [0x0027]=0x2019, +} +local function texreplacements(tfmdata,value) + local descriptions=tfmdata.descriptions + local characters=tfmdata.characters + for k,v in next,list do + characters [k]=characters [v] + descriptions[k]=descriptions[v] + end +end +local function ligatures (tfmdata,value) prepareligatures(tfmdata,'ligatures',value) end +local function texligatures(tfmdata,value) prepareligatures(tfmdata,'texligatures',value) end +local function kerns (tfmdata,value) preparekerns (tfmdata,'kerns',value) end +local function extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns',value) end +registerafmfeature { + name="liga", + description="traditional ligatures", + initializers={ + base=ligatures, + node=ligatures, + } +} +registerafmfeature { + name="kern", + description="intercharacter kerning", + initializers={ + base=kerns, + node=kerns, + } +} +registerafmfeature { + name="extrakerns", + description="additional intercharacter kerning", + initializers={ + base=extrakerns, + node=extrakerns, + } +} +registerafmfeature { + name='tlig', + description='tex ligatures', + initializers={ + base=texligatures, + node=texligatures, + } +} +registerafmfeature { + name='trep', + description='tex replacements', + initializers={ + base=texreplacements, + node=texreplacements, + } +} +local check_tfm=readers.check_tfm +fonts.formats.afm="type1" +fonts.formats.pfb="type1" +local function check_afm(specification,fullname) + local foundname=findbinfile(fullname,'afm') or "" + if foundname=="" then + foundname=fonts.names.getfilename(fullname,"afm") or "" + end + if foundname=="" and afm.autoprefixed then + local encoding,shortname=match(fullname,"^(.-)%-(.*)$") + if encoding and shortname and fonts.encodings.known[encoding] then + shortname=findbinfile(shortname,'afm') or "" + if shortname~="" then + foundname=shortname + if trace_defining then + report_afm("stripping encoding prefix from filename %a",afmname) + end + end + end + end + if foundname~="" then + specification.filename=foundname + specification.format="afm" + return read_from_afm(specification) + end +end +function readers.afm(specification,method) + local fullname,tfmdata=specification.filename or "",nil + if fullname=="" then + local forced=specification.forced or "" + if forced~="" then + tfmdata=check_afm(specification,specification.name.."."..forced) + end + if not tfmdata then + method=method or definers.method or "afm or tfm" + if method=="tfm" then + tfmdata=check_tfm(specification,specification.name) + elseif method=="afm" then + tfmdata=check_afm(specification,specification.name) + elseif method=="tfm or afm" then + tfmdata=check_tfm(specification,specification.name) or check_afm(specification,specification.name) + else + tfmdata=check_afm(specification,specification.name) or check_tfm(specification,specification.name) + end + end + else + tfmdata=check_afm(specification,fullname) + end + return tfmdata +end +function readers.pfb(specification,method) + local original=specification.specification + if trace_defining then + report_afm("using afm reader for %a",original) + end + specification.specification=gsub(original,"%.pfb",".afm") + specification.forced="afm" + return readers.afm(specification,method) +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", -- cgit v1.2.3 From b40962783c48f18452e3be2f7e84d2f1194005db Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:06:38 +0200 Subject: [type1] extinguish luaotfload-font-afm.lua --- luaotfload-font-afm.lua | 971 ------------------------------------------------ 1 file changed, 971 deletions(-) delete mode 100644 luaotfload-font-afm.lua diff --git a/luaotfload-font-afm.lua b/luaotfload-font-afm.lua deleted file mode 100644 index cb0c243..0000000 --- a/luaotfload-font-afm.lua +++ /dev/null @@ -1,971 +0,0 @@ -if not modules then modules = { } end modules ['font-afm'] = { - 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-- -

Some code may look a bit obscure but this has to do with the -fact that we also use this code for testing and much code evolved -in the transition from to to .

- -

The following code still has traces of intermediate font support -where we handles font encodings. Eventually font encoding goes -away.

---ldx]]-- - -local fonts, logs, trackers, containers, resolvers = fonts, logs, trackers, containers, resolvers - -local next, type, tonumber = next, type, tonumber -local format, match, gmatch, lower, gsub, strip = string.format, string.match, string.gmatch, string.lower, string.gsub, string.strip -local abs = math.abs -local P, S, C, R, lpegmatch, patterns = lpeg.P, lpeg.S, lpeg.C, lpeg.R, lpeg.match, lpeg.patterns -local derivetable = table.derive - -local trace_features = false trackers.register("afm.features", function(v) trace_features = v end) -local trace_indexing = false trackers.register("afm.indexing", function(v) trace_indexing = v end) -local trace_loading = false trackers.register("afm.loading", function(v) trace_loading = v end) -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) - -local report_afm = logs.reporter("fonts","afm loading") - -local findbinfile = resolvers.findbinfile - -local definers = fonts.definers -local readers = fonts.readers -local constructors = fonts.constructors - -local afm = constructors.newhandler("afm") -local pfb = constructors.newhandler("pfb") - -local afmfeatures = constructors.newfeatures("afm") -local registerafmfeature = afmfeatures.register - -afm.version = 1.410 -- incrementing this number one up will force a re-cache -afm.cache = containers.define("fonts", "afm", afm.version, true) -afm.autoprefixed = true -- this will become false some day (catches texnansi-blabla.*) - -afm.helpdata = { } -- set later on so no local for this -afm.syncspace = true -- when true, nicer stretch values -afm.addligatures = true -- best leave this set to true -afm.addtexligatures = true -- best leave this set to true -afm.addkerns = true -- best leave this set to true - -local function setmode(tfmdata,value) - if value then - tfmdata.properties.mode = lower(value) - end -end - -registerafmfeature { - name = "mode", - description = "mode", - initializers = { - base = setmode, - node = setmode, - } -} - ---[[ldx-- -

We start with the basic reader which we give a name similar to the -built in and reader.

---ldx]]-- - ---~ Comment FONTIDENTIFIER LMMATHSYMBOLS10 ---~ Comment CODINGSCHEME TEX MATH SYMBOLS ---~ Comment DESIGNSIZE 10.0 pt ---~ Comment CHECKSUM O 4261307036 ---~ Comment SPACE 0 plus 0 minus 0 ---~ Comment QUAD 1000 ---~ Comment EXTRASPACE 0 ---~ Comment NUM 676.508 393.732 443.731 ---~ Comment DENOM 685.951 344.841 ---~ Comment SUP 412.892 362.892 288.889 ---~ Comment SUB 150 247.217 ---~ Comment SUPDROP 386.108 ---~ Comment SUBDROP 50 ---~ Comment DELIM 2390 1010 ---~ Comment AXISHEIGHT 250 - -local comment = P("Comment") -local spacing = patterns.spacer -- S(" \t")^1 -local lineend = patterns.newline -- S("\n\r") -local words = C((1 - lineend)^1) -local number = C((R("09") + S("."))^1) / tonumber * spacing^0 -local data = lpeg.Carg(1) - -local pattern = ( -- needs testing ... not used anyway as we no longer need math afm's - comment * spacing * - ( - data * ( - ("CODINGSCHEME" * spacing * words ) / function(fd,a) end + - ("DESIGNSIZE" * spacing * number * words ) / function(fd,a) fd[ 1] = a end + - ("CHECKSUM" * spacing * number * words ) / function(fd,a) fd[ 2] = a end + - ("SPACE" * spacing * number * "plus" * number * "minus" * number) / function(fd,a,b,c) fd[ 3], fd[ 4], fd[ 5] = a, b, c end + - ("QUAD" * spacing * number ) / function(fd,a) fd[ 6] = a end + - ("EXTRASPACE" * spacing * number ) / function(fd,a) fd[ 7] = a end + - ("NUM" * spacing * number * number * number ) / function(fd,a,b,c) fd[ 8], fd[ 9], fd[10] = a, b, c end + - ("DENOM" * spacing * number * number ) / function(fd,a,b ) fd[11], fd[12] = a, b end + - ("SUP" * spacing * number * number * number ) / function(fd,a,b,c) fd[13], fd[14], fd[15] = a, b, c end + - ("SUB" * spacing * number * number ) / function(fd,a,b) fd[16], fd[17] = a, b end + - ("SUPDROP" * spacing * number ) / function(fd,a) fd[18] = a end + - ("SUBDROP" * spacing * number ) / function(fd,a) fd[19] = a end + - ("DELIM" * spacing * number * number ) / function(fd,a,b) fd[20], fd[21] = a, b end + - ("AXISHEIGHT" * spacing * number ) / function(fd,a) fd[22] = a end - ) - + (1-lineend)^0 - ) - + (1-comment)^1 -)^0 - -local function scan_comment(str) - local fd = { } - lpegmatch(pattern,str,1,fd) - return fd -end - --- On a rainy day I will rewrite this in lpeg ... or we can use the (slower) fontloader --- as in now supports afm/pfb loading but it's not too bad to have different methods --- for testing approaches. - -local keys = { } - -function keys.FontName (data,line) data.metadata.fontname = strip (line) -- get rid of spaces - data.metadata.fullname = strip (line) end -function keys.ItalicAngle (data,line) data.metadata.italicangle = tonumber (line) end -function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch = toboolean(line,true) end -function keys.CharWidth (data,line) data.metadata.charwidth = tonumber (line) end -function keys.XHeight (data,line) data.metadata.xheight = tonumber (line) end -function keys.Descender (data,line) data.metadata.descender = tonumber (line) end -function keys.Ascender (data,line) data.metadata.ascender = tonumber (line) end -function keys.Comment (data,line) - -- Comment DesignSize 12 (pts) - -- Comment TFM designsize: 12 (in points) - line = lower(line) - local designsize = match(line,"designsize[^%d]*(%d+)") - if designsize then data.metadata.designsize = tonumber(designsize) end -end - -local function get_charmetrics(data,charmetrics,vector) - local characters = data.characters - local chr, ind = { }, 0 - for k,v in gmatch(charmetrics,"([%a]+) +(.-) *;") do - if k == 'C' then - v = tonumber(v) - if v < 0 then - ind = ind + 1 -- ? - else - ind = v - end - chr = { - index = ind - } - elseif k == 'WX' then - chr.width = tonumber(v) - elseif k == 'N' then - characters[v] = chr - elseif k == 'B' then - local llx, lly, urx, ury = match(v,"^ *(.-) +(.-) +(.-) +(.-)$") - chr.boundingbox = { tonumber(llx), tonumber(lly), tonumber(urx), tonumber(ury) } - elseif k == 'L' then - local plus, becomes = match(v,"^(.-) +(.-)$") - local ligatures = chr.ligatures - if ligatures then - ligatures[plus] = becomes - else - chr.ligatures = { [plus] = becomes } - end - end - end -end - -local function get_kernpairs(data,kernpairs) - local characters = data.characters - for one, two, value in gmatch(kernpairs,"KPX +(.-) +(.-) +(.-)\n") do - local chr = characters[one] - if chr then - local kerns = chr.kerns - if kerns then - kerns[two] = tonumber(value) - else - chr.kerns = { [two] = tonumber(value) } - end - end - end -end - -local function get_variables(data,fontmetrics) - for key, rest in gmatch(fontmetrics,"(%a+) *(.-)[\n\r]") do - local keyhandler = keys[key] - if keyhandler then - keyhandler(data,rest) - end - end -end - -local function get_indexes(data,pfbname) - data.resources.filename = resolvers.unresolve(pfbname) -- no shortcut - local pfbblob = fontloader.open(pfbname) - if pfbblob then - local characters = data.characters - local pfbdata = fontloader.to_table(pfbblob) - if pfbdata then - local glyphs = pfbdata.glyphs - if glyphs then - if trace_loading then - report_afm("getting index data from %a",pfbname) - end - for index, glyph in next, glyphs do - local name = glyph.name - if name then - local char = characters[name] - if char then - if trace_indexing then - report_afm("glyph %a has index %a",name,index) - end - char.index = index - end - end - end - elseif trace_loading then - report_afm("no glyph data in pfb file %a",pfbname) - end - elseif trace_loading then - report_afm("no data in pfb file %a",pfbname) - end - fontloader.close(pfbblob) - elseif trace_loading then - report_afm("invalid pfb file %a",pfbname) - end -end - -local function readafm(filename) - local ok, afmblob, size = resolvers.loadbinfile(filename) -- has logging - if ok and afmblob then - local data = { - resources = { - filename = resolvers.unresolve(filename), - version = afm.version, - creator = "context mkiv", - }, - properties = { - hasitalics = false, - }, - goodies = { - }, - metadata = { - filename = file.removesuffix(file.basename(filename)) - }, - characters = { - -- a temporary store - }, - descriptions = { - -- the final store - }, - } - afmblob = gsub(afmblob,"StartCharMetrics(.-)EndCharMetrics", function(charmetrics) - if trace_loading then - report_afm("loading char metrics") - end - get_charmetrics(data,charmetrics,vector) - return "" - end) - afmblob = gsub(afmblob,"StartKernPairs(.-)EndKernPairs", function(kernpairs) - if trace_loading then - report_afm("loading kern pairs") - end - get_kernpairs(data,kernpairs) - return "" - end) - afmblob = gsub(afmblob,"StartFontMetrics%s+([%d%.]+)(.-)EndFontMetrics", function(version,fontmetrics) - if trace_loading then - report_afm("loading variables") - end - data.afmversion = version - get_variables(data,fontmetrics) - data.fontdimens = scan_comment(fontmetrics) -- todo: all lpeg, no time now - return "" - end) - return data - else - if trace_loading then - report_afm("no valid afm file %a",filename) - end - return nil - end -end - ---[[ldx-- -

We cache files. Caching is taken care of in the loader. We cheat a bit -by adding ligatures and kern information to the afm derived data. That -way we can set them faster when defining a font.

---ldx]]-- - -local addkerns, addligatures, addtexligatures, unify, normalize -- we will implement these later - -function afm.load(filename) - -- hm, for some reasons not resolved yet - filename = resolvers.findfile(filename,'afm') or "" - if filename ~= "" then - local name = file.removesuffix(file.basename(filename)) - local data = containers.read(afm.cache,name) - local attr = lfs.attributes(filename) - local size, time = attr.size or 0, attr.modification or 0 - -- - local pfbfile = file.replacesuffix(name,"pfb") - local pfbname = resolvers.findfile(pfbfile,"pfb") or "" - if pfbname == "" then - pfbname = resolvers.findfile(file.basename(pfbfile),"pfb") or "" - end - local pfbsize, pfbtime = 0, 0 - if pfbname ~= "" then - local attr = lfs.attributes(pfbname) - pfbsize = attr.size or 0 - pfbtime = attr.modification or 0 - end - if not data or data.size ~= size or data.time ~= time or data.pfbsize ~= pfbsize or data.pfbtime ~= pfbtime then - report_afm("reading %a",filename) - data = readafm(filename) - if data then - if pfbname ~= "" then - get_indexes(data,pfbname) - elseif trace_loading then - report_afm("no pfb file for %a",filename) - end - report_afm("unifying %a",filename) - unify(data,filename) - if afm.addligatures then - report_afm("add ligatures") - addligatures(data) - end - if afm.addtexligatures then - report_afm("add tex ligatures") - addtexligatures(data) - end - if afm.addkerns then - report_afm("add extra kerns") - addkerns(data) - end - normalize(data) - report_afm("add tounicode data") - fonts.mappings.addtounicode(data,filename) - data.size = size - data.time = time - data.pfbsize = pfbsize - data.pfbtime = pfbtime - report_afm("saving %a in cache",name) - data = containers.write(afm.cache, name, data) - data = containers.read(afm.cache,name) - end - end - return data - else - return nil - end -end - -local uparser = fonts.mappings.makenameparser() - -unify = function(data, filename) - local unicodevector = fonts.encodings.agl.unicodes -- loaded runtime in context - local unicodes, names = { }, { } - local private = constructors.privateoffset - local descriptions = data.descriptions - for name, blob in next, data.characters do - local code = unicodevector[name] -- or characters.name_to_unicode[name] - if not code then - code = lpegmatch(uparser,name) - if not code then - code = private - private = private + 1 - report_afm("assigning private slot %U for unknown glyph name %a",code,name) - end - end - local index = blob.index - unicodes[name] = code - names[name] = index - blob.name = name - descriptions[code] = { - boundingbox = blob.boundingbox, - width = blob.width, - kerns = blob.kerns, - index = index, - name = name, - } - end - for unicode, description in next, descriptions do - local kerns = description.kerns - if kerns then - local krn = { } - for name, kern in next, kerns do - local unicode = unicodes[name] - if unicode then - krn[unicode] = kern - else - print(unicode,name) - end - end - description.kerns = krn - end - end - data.characters = nil - local resources = data.resources - local filename = resources.filename or file.removesuffix(file.basename(filename)) - resources.filename = resolvers.unresolve(filename) -- no shortcut - resources.unicodes = unicodes -- name to unicode - resources.marks = { } -- todo - resources.names = names -- name to index - resources.private = private -end - -normalize = function(data) -end - ---[[ldx-- -

These helpers extend the basic table with extra ligatures, texligatures -and extra kerns. This saves quite some lookups later.

---ldx]]-- - -local addthem = function(rawdata,ligatures) - if ligatures then - local descriptions = rawdata.descriptions - local resources = rawdata.resources - local unicodes = resources.unicodes - local names = resources.names - for ligname, ligdata in next, ligatures do - local one = descriptions[unicodes[ligname]] - if one then - for _, pair in next, ligdata do - local two, three = unicodes[pair[1]], unicodes[pair[2]] - if two and three then - local ol = one.ligatures - if ol then - if not ol[two] then - ol[two] = three - end - else - one.ligatures = { [two] = three } - end - end - end - end - end - end -end - -addligatures = function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end -addtexligatures = function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end - ---[[ldx-- -

We keep the extra kerns in separate kerning tables so that we can use -them selectively.

---ldx]]-- - --- This is rather old code (from the beginning when we had only tfm). If --- we unify the afm data (now we have names all over the place) then --- we can use shcodes but there will be many more looping then. But we --- could get rid of the tables in char-cmp then. Als, in the generic version --- we don't use the character database. (Ok, we can have a context specific --- variant). - -addkerns = function(rawdata) -- using shcodes is not robust here - local descriptions = rawdata.descriptions - local resources = rawdata.resources - local unicodes = resources.unicodes - local function do_it_left(what) - if what then - for unicode, description in next, descriptions do - local kerns = description.kerns - if kerns then - local extrakerns - for complex, simple in next, what do - complex = unicodes[complex] - simple = unicodes[simple] - if complex and simple then - local ks = kerns[simple] - if ks and not kerns[complex] then - if extrakerns then - extrakerns[complex] = ks - else - extrakerns = { [complex] = ks } - end - end - end - end - if extrakerns then - description.extrakerns = extrakerns - end - end - end - end - end - local function do_it_copy(what) - if what then - for complex, simple in next, what do - complex = unicodes[complex] - simple = unicodes[simple] - if complex and simple then - local complexdescription = descriptions[complex] - if complexdescription then -- optional - local simpledescription = descriptions[complex] - if simpledescription then - local extrakerns - local kerns = simpledescription.kerns - if kerns then - for unicode, kern in next, kerns do - if extrakerns then - extrakerns[unicode] = kern - else - extrakerns = { [unicode] = kern } - end - end - end - local extrakerns = simpledescription.extrakerns - if extrakerns then - for unicode, kern in next, extrakerns do - if extrakerns then - extrakerns[unicode] = kern - else - extrakerns = { [unicode] = kern } - end - end - end - if extrakerns then - complexdescription.extrakerns = extrakerns - end - end - end - end - end - end - end - -- add complex with values of simplified when present - do_it_left(afm.helpdata.leftkerned) - do_it_left(afm.helpdata.bothkerned) - -- copy kerns from simple char to complex char unless set - do_it_copy(afm.helpdata.bothkerned) - do_it_copy(afm.helpdata.rightkerned) -end - ---[[ldx-- -

The copying routine looks messy (and is indeed a bit messy).

---ldx]]-- - -local function adddimensions(data) -- we need to normalize afm to otf i.e. indexed table instead of name - if data then - for unicode, description in next, data.descriptions do - local bb = description.boundingbox - if bb then - local ht, dp = bb[4], -bb[2] - if ht == 0 or ht < 0 then - -- no need to set it and no negative heights, nil == 0 - else - description.height = ht - end - if dp == 0 or dp < 0 then - -- no negative depths and no negative depths, nil == 0 - else - description.depth = dp - end - end - end - end -end - -local function copytotfm(data) - if data and data.descriptions 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 unicodes = resources.unicodes - -- - for unicode, description in next, data.descriptions do -- use parent table - characters[unicode] = { } - end - -- - local filename = constructors.checkedfilename(resources) - local fontname = metadata.fontname or metadata.fullname - local fullname = metadata.fullname or metadata.fontname - local endash = unicodes['space'] - local emdash = unicodes['emdash'] - local spacer = "space" - local spaceunits = 500 - -- - local monospaced = metadata.isfixedpitch - local charwidth = metadata.charwidth - local italicangle = metadata.italicangle - local charxheight = metadata.xheight and metadata.xheight > 0 and metadata.xheight - properties.monospaced = monospaced - parameters.italicangle = italicangle - parameters.charwidth = charwidth - parameters.charxheight = charxheight - -- same as otf - if properties.monospaced then - if descriptions[endash] then - spaceunits, spacer = descriptions[endash].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[endash] then - spaceunits, spacer = descriptions[endash].width, "space" - end - if not spaceunits and charwidth then - spaceunits, spacer = charwidth, "charwidth" - end - end - spaceunits = tonumber(spaceunits) - if spaceunits < 200 then - -- todo: warning - end - -- - parameters.slant = 0 - parameters.space = spaceunits - parameters.space_stretch = 500 - parameters.space_shrink = 333 - parameters.x_height = 400 - parameters.quad = 1000 - -- - 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 afm.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 - -- same as otf - local x = unicodes['x'] - if x then - local x = descriptions[x] - if x then - parameters.x_height = x.height - end - end - -- - end - local fd = data.fontdimens - if fd and fd[8] and fd[9] and fd[10] then -- math - for k,v in next, fd do - parameters[k] = v - end - end - -- - parameters.designsize = (metadata.designsize or 10)*65536 - parameters.ascender = abs(metadata.ascender or 0) - parameters.descender = abs(metadata.descender or 0) - parameters.units = 1000 - -- - properties.spacer = spacer - properties.encodingbytes = 2 - properties.format = fonts.formats[filename] or "type1" - properties.filename = filename - properties.fontname = fontname - properties.fullname = fullname - properties.psname = fullname - properties.name = filename or fullname or fontname - -- - if next(characters) then - return { - characters = characters, - descriptions = descriptions, - parameters = parameters, - resources = resources, - properties = properties, - goodies = goodies, - } - end - end - return nil -end - ---[[ldx-- -

Originally we had features kind of hard coded for -files but since I expect to support more font formats, I decided -to treat this fontformat like any other and handle features in a -more configurable way.

---ldx]]-- - -function afm.setfeatures(tfmdata,features) - local okay = constructors.initializefeatures("afm",tfmdata,features,trace_features,report_afm) - if okay then - return constructors.collectprocessors("afm",tfmdata,features,trace_features,report_afm) - else - return { } -- will become false - end -end - -local function checkfeatures(specification) -end - -local function afmtotfm(specification) - local afmname = specification.filename or specification.name - if specification.forced == "afm" or specification.format == "afm" then -- move this one up - if trace_loading then - report_afm("forcing afm format for %a",afmname) - end - else - local tfmname = findbinfile(afmname,"ofm") or "" - if tfmname ~= "" then - if trace_loading then - report_afm("fallback from afm to tfm for %a",afmname) - end - return -- just that - end - end - if afmname ~= "" then - -- weird, isn't this already done then? - local features = constructors.checkedfeatures("afm",specification.features.normal) - specification.features.normal = features - constructors.hashinstance(specification,true) -- also weird here - -- - specification = definers.resolve(specification) -- new, was forgotten - local cache_id = specification.hash - local tfmdata = containers.read(constructors.cache, cache_id) -- cache with features applied - if not tfmdata then - local rawdata = afm.load(afmname) - if rawdata and next(rawdata) then - adddimensions(rawdata) - tfmdata = copytotfm(rawdata) - if tfmdata and next(tfmdata) then - local shared = tfmdata.shared - if not shared then - shared = { } - tfmdata.shared = shared - end - shared.rawdata = rawdata - shared.features = features - shared.processes = afm.setfeatures(tfmdata,features) - end - elseif trace_loading then - report_afm("no (valid) afm file found with name %a",afmname) - end - tfmdata = containers.write(constructors.cache,cache_id,tfmdata) - end - return tfmdata - end -end - ---[[ldx-- -

As soon as we could intercept the reader, I implemented an - reader. Since traditional could use -fonts with companions, the following method also could handle -those cases, but now that we can handle directly we no longer -need this features.

---ldx]]-- - -local function read_from_afm(specification) - local tfmdata = afmtotfm(specification) - if tfmdata then - tfmdata.properties.name = specification.name - tfmdata = constructors.scale(tfmdata, specification) - local allfeatures = tfmdata.shared.features or specification.features.normal - constructors.applymanipulators("afm",tfmdata,allfeatures,trace_features,report_afm) - fonts.loggers.register(tfmdata,'afm',specification) - end - return tfmdata -end - ---[[ldx-- -

Here comes the implementation of a few features. We only implement -those that make sense for this format.

---ldx]]-- - -local function prepareligatures(tfmdata,ligatures,value) - if value then - local descriptions = tfmdata.descriptions - for unicode, character in next, tfmdata.characters do - local description = descriptions[unicode] - local dligatures = description.ligatures - if dligatures then - local cligatures = character.ligatures - if not cligatures then - cligatures = { } - character.ligatures = cligatures - end - for unicode, ligature in next, dligatures do - cligatures[unicode] = { - char = ligature, - type = 0 - } - end - end - end - end -end - -local function preparekerns(tfmdata,kerns,value) - if value then - local rawdata = tfmdata.shared.rawdata - local resources = rawdata.resources - local unicodes = resources.unicodes - local descriptions = tfmdata.descriptions - for u, chr in next, tfmdata.characters do - local d = descriptions[u] - local newkerns = d[kerns] - if newkerns then - local kerns = chr.kerns - if not kerns then - kerns = { } - chr.kerns = kerns - end - for k,v in next, newkerns do - local uk = unicodes[k] - if uk then - kerns[uk] = v - end - end - end - end - end -end - -local list = { - -- [0x0022] = 0x201D, - [0x0027] = 0x2019, - -- [0x0060] = 0x2018, -} - -local function texreplacements(tfmdata,value) - local descriptions = tfmdata.descriptions - local characters = tfmdata.characters - for k, v in next, list do - characters [k] = characters [v] -- we forget about kerns - descriptions[k] = descriptions[v] -- we forget about kerns - end -end - -local function ligatures (tfmdata,value) prepareligatures(tfmdata,'ligatures', value) end -local function texligatures(tfmdata,value) prepareligatures(tfmdata,'texligatures',value) end -local function kerns (tfmdata,value) preparekerns (tfmdata,'kerns', value) end -local function extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns', value) end - -registerafmfeature { - name = "liga", - description = "traditional ligatures", - initializers = { - base = ligatures, - node = ligatures, - } -} - -registerafmfeature { - name = "kern", - description = "intercharacter kerning", - initializers = { - base = kerns, - node = kerns, - } -} - -registerafmfeature { - name = "extrakerns", - description = "additional intercharacter kerning", - initializers = { - base = extrakerns, - node = extrakerns, - } -} - -registerafmfeature { - name = 'tlig', - description = 'tex ligatures', - initializers = { - base = texligatures, - node = texligatures, - } -} - -registerafmfeature { - name = 'trep', - description = 'tex replacements', - initializers = { - base = texreplacements, - node = texreplacements, - } -} - --- readers - -local check_tfm = readers.check_tfm - -fonts.formats.afm = "type1" -fonts.formats.pfb = "type1" - -local function check_afm(specification,fullname) - local foundname = findbinfile(fullname, 'afm') or "" -- just to be sure - if foundname == "" then - foundname = fonts.names.getfilename(fullname,"afm") or "" - end - if foundname == "" and afm.autoprefixed then - local encoding, shortname = match(fullname,"^(.-)%-(.*)$") -- context: encoding-name.* - if encoding and shortname and fonts.encodings.known[encoding] then - shortname = findbinfile(shortname,'afm') or "" -- just to be sure - if shortname ~= "" then - foundname = shortname - if trace_defining then - report_afm("stripping encoding prefix from filename %a",afmname) - end - end - end - end - if foundname ~= "" then - specification.filename = foundname - specification.format = "afm" - return read_from_afm(specification) - end -end - -function readers.afm(specification,method) - local fullname, tfmdata = specification.filename or "", nil - if fullname == "" then - local forced = specification.forced or "" - if forced ~= "" then - tfmdata = check_afm(specification,specification.name .. "." .. forced) - end - if not tfmdata then - method = method or definers.method or "afm or tfm" - if method == "tfm" then - tfmdata = check_tfm(specification,specification.name) - elseif method == "afm" then - tfmdata = check_afm(specification,specification.name) - elseif method == "tfm or afm" then - tfmdata = check_tfm(specification,specification.name) or check_afm(specification,specification.name) - else -- method == "afm or tfm" or method == "" then - tfmdata = check_afm(specification,specification.name) or check_tfm(specification,specification.name) - end - end - else - tfmdata = check_afm(specification,fullname) - end - return tfmdata -end - -function readers.pfb(specification,method) -- only called when forced - local original = specification.specification - if trace_defining then - report_afm("using afm reader for %a",original) - end - specification.specification = gsub(original,"%.pfb",".afm") - specification.forced = "afm" - return readers.afm(specification,method) -end -- cgit v1.2.3 From ccf1abf541a32aebcc6726aca8ebf058a8ae1291 Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:11:13 +0200 Subject: [fontloader] sync luatex-basics-gen.lua --- luaotfload-basics-gen.lua | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/luaotfload-basics-gen.lua b/luaotfload-basics-gen.lua index 26c1edc..9cf5b93 100644 --- a/luaotfload-basics-gen.lua +++ b/luaotfload-basics-gen.lua @@ -89,6 +89,7 @@ local remapper = { 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! + afm = "afm", } function resolvers.findfile(name,fileformat) @@ -117,6 +118,11 @@ end resolvers.findbinfile = resolvers.findfile +function resolvers.loadbinfile(filename,filetype) + local data = io.loaddata(filename) + return true, data, #data +end + function resolvers.resolve(s) return s end -- cgit v1.2.3 From 52ee6cb5cc78d1503bb24e652f28560cc23cf588 Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:13:13 +0200 Subject: [doc] update references to AFM loaders --- filegraph.dot | 17 ----------------- luaotfload.dtx | 4 ++-- 2 files changed, 2 insertions(+), 19 deletions(-) diff --git a/filegraph.dot b/filegraph.dot index f69c751..d33653c 100644 --- a/filegraph.dot +++ b/filegraph.dot @@ -63,17 +63,8 @@ strict digraph luaotfload_files { //looks weird with circo ... luaotfload_libs -> font_names [label="luaotfload-database.lua"] luaotfload_libs -> typo_krn [label="luaotfload-extralibs.lua"] - luaotfload_libs -> font_afm [label="luaotfload-loaders.lua"] luaotfload_libs -> font_afk [label="luaotfload-loaders.lua"] - subgraph cluster_afm { rank = same; - label = "AFM support"; - node [style=filled, color=white]; - style = "filled,rounded"; - color = "grey90:white"; - font_afm; - font_afk; } - mkstatus -> status [label="generates from distribution files", style=dashed] @@ -166,14 +157,6 @@ strict digraph luaotfload_files { //looks weird with circo ... style = "filled,rounded", penwidth=2] - font_afm [label = "luaotfload-font-afm.lua", - shape = rect, - width = "3.2cm", - height = "1.2cm", - color = "#01012222", - style = "filled,rounded", - penwidth=2] - typo_krn [label = "luaotfload-typo-krn.lua", shape = rect, width = "3.2cm", diff --git a/luaotfload.dtx b/luaotfload.dtx index 56e9d4d..622c902 100644 --- a/luaotfload.dtx +++ b/luaotfload.dtx @@ -1217,10 +1217,10 @@ and the derived files % Context libraries. % \ouritem {luaotfload-letterspace.lua} font-based letterspacing. % \ouritem {luaotfload-typo-krn.lua} attribute-based letterspacing. -% \ouritem {luaotfload-font-afm.lua} \abbrev{afm} loading. % \ouritem {luaotfload-font-afk.lua} supplementary glyph % information for \abbrev{afm} -% fonts. +% fonts (enables ligatures +% and kerning). % \end{itemize} % % \begin{figure}[b] -- cgit v1.2.3 From 29a8d2a811a792a85899c939e7221a2fde372627 Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:15:16 +0200 Subject: [meta] exclude removed font-afm.lua from status file --- mkstatus | 1 - 1 file changed, 1 deletion(-) diff --git a/mkstatus b/mkstatus index 5cd73d8..1b0c9f4 100755 --- a/mkstatus +++ b/mkstatus @@ -43,7 +43,6 @@ local names = { "luaotfload-extralibs.lua", "luaotfload-features.lua", "luaotfload-font-afk.lua", - "luaotfload-font-afm.lua", "luaotfload-fonts-cbk.lua", "luaotfload-fonts-def.lua", "luaotfload-fonts-enc.lua", -- cgit v1.2.3 From 54aa74688bba09a538a98d6852fc3848c6c5f52c Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Sun, 25 Aug 2013 12:15:41 +0200 Subject: [doc] upate description of contents of merged package in file graph --- filegraph.dot | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/filegraph.dot b/filegraph.dot index d33653c..0837032 100644 --- a/filegraph.dot +++ b/filegraph.dot @@ -272,10 +272,11 @@ strict digraph luaotfload_files { //looks weird with circo ... - - - - + + + + +
Font Loader (LuaTeX-Fonts)
luatex-basics-gen.lua luatex-basics-nod.lua
luatex-fonts-enc.lua luatex-fonts-syn.lua
luatex-fonts-tfm.lua luatex-fonts-chr.lua
luatex-fonts-lua.lua luatex-fonts-def.lua
luatex-fonts-ext.lua luatex-fonts-cbk.lua
luatex-fonts-enc.lua luatex-fonts-syn.lua
luatex-font-tfm.lua luatex-font-afm.lua
luatex-fonts-tfm.lua luatex-fonts-chr.lua
luatex-fonts-lua.lua luatex-fonts-def.lua
luatex-fonts-ext.lua luatex-fonts-cbk.lua
>, ] -- cgit v1.2.3