diff options
Diffstat (limited to 'tex/generic/context/luatex-fonts-merged.lua')
| -rw-r--r-- | tex/generic/context/luatex-fonts-merged.lua | 12169 |
1 files changed, 0 insertions, 12169 deletions
diff --git a/tex/generic/context/luatex-fonts-merged.lua b/tex/generic/context/luatex-fonts-merged.lua deleted file mode 100644 index aac55170c..000000000 --- a/tex/generic/context/luatex-fonts-merged.lua +++ /dev/null @@ -1,12169 +0,0 @@ --- merged file : luatex-fonts-merged.lua --- parent file : luatex-fonts.lua --- merge date : 03/25/10 23:12:19 - -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" -} - -local sub, gsub, find, match, gmatch, format, char, byte, rep, lower = string.sub, string.gsub, string.find, string.match, string.gmatch, string.format, string.char, string.byte, string.rep, string.lower -local lpegmatch = lpeg.match - --- some functions may disappear as they are not used anywhere - -if not string.split then - - -- this will be overloaded by a faster lpeg variant - - function string:split(pattern) - if #self > 0 then - local t = { } - for s in gmatch(self..pattern,"(.-)"..pattern) do - t[#t+1] = s - end - return t - else - return { } - end - end - -end - -local chr_to_esc = { - ["%"] = "%%", - ["."] = "%.", - ["+"] = "%+", ["-"] = "%-", ["*"] = "%*", - ["^"] = "%^", ["$"] = "%$", - ["["] = "%[", ["]"] = "%]", - ["("] = "%(", [")"] = "%)", - ["{"] = "%{", ["}"] = "%}" -} - -string.chr_to_esc = chr_to_esc - -function string:esc() -- variant 2 - return (gsub(self,"(.)",chr_to_esc)) -end - -function string:unquote() - return (gsub(self,"^([\"\'])(.*)%1$","%2")) -end - ---~ function string:unquote() ---~ if find(self,"^[\'\"]") then ---~ return sub(self,2,-2) ---~ else ---~ return self ---~ end ---~ end - -function string:quote() -- we could use format("%q") - return format("%q",self) -end - -function string:count(pattern) -- variant 3 - local n = 0 - for _ in gmatch(self,pattern) do - n = n + 1 - end - return n -end - -function string:limit(n,sentinel) - if #self > n then - sentinel = sentinel or " ..." - return sub(self,1,(n-#sentinel)) .. sentinel - else - return self - end -end - ---~ function string:strip() -- the .- is quite efficient ---~ -- return match(self,"^%s*(.-)%s*$") or "" ---~ -- return match(self,'^%s*(.*%S)') or '' -- posted on lua list ---~ return find(s,'^%s*$') and '' or match(s,'^%s*(.*%S)') ---~ end - -do -- roberto's variant: - local space = lpeg.S(" \t\v\n") - local nospace = 1 - space - local stripper = space^0 * lpeg.C((space^0 * nospace^1)^0) - function string.strip(str) - return lpegmatch(stripper,str) or "" - end -end - -function string:is_empty() - return not find(self,"%S") -end - -function string:enhance(pattern,action) - local ok, n = true, 0 - while ok do - ok = false - self = gsub(self,pattern, function(...) - ok, n = true, n + 1 - return action(...) - end) - end - return self, n -end - -local chr_to_hex, hex_to_chr = { }, { } - -for i=0,255 do - local c, h = char(i), format("%02X",i) - chr_to_hex[c], hex_to_chr[h] = h, c -end - -function string:to_hex() - return (gsub(self or "","(.)",chr_to_hex)) -end - -function string:from_hex() - return (gsub(self or "","(..)",hex_to_chr)) -end - -if not string.characters then - - local function nextchar(str, index) - index = index + 1 - return (index <= #str) and index or nil, sub(str,index,index) - end - function string:characters() - return nextchar, self, 0 - end - local function nextbyte(str, index) - index = index + 1 - return (index <= #str) and index or nil, byte(sub(str,index,index)) - end - function string:bytes() - return nextbyte, self, 0 - end - -end - --- we can use format for this (neg n) - -function string:rpadd(n,chr) - local m = n-#self - if m > 0 then - return self .. rep(chr or " ",m) - else - return self - end -end - -function string:lpadd(n,chr) - local m = n-#self - if m > 0 then - return rep(chr or " ",m) .. self - else - return self - end -end - -string.padd = string.rpadd - -function is_number(str) -- tonumber - return find(str,"^[%-%+]?[%d]-%.?[%d+]$") == 1 -end - ---~ print(is_number("1")) ---~ print(is_number("1.1")) ---~ print(is_number(".1")) ---~ print(is_number("-0.1")) ---~ print(is_number("+0.1")) ---~ print(is_number("-.1")) ---~ print(is_number("+.1")) - -function string:split_settings() -- no {} handling, see l-aux for lpeg variant - if find(self,"=") then - local t = { } - for k,v in gmatch(self,"(%a+)=([^%,]*)") do - t[k] = v - end - return t - else - return nil - end -end - -local patterns_escapes = { - ["-"] = "%-", - ["."] = "%.", - ["+"] = "%+", - ["*"] = "%*", - ["%"] = "%%", - ["("] = "%)", - [")"] = "%)", - ["["] = "%[", - ["]"] = "%]", -} - -function string:pattesc() - return (gsub(self,".",patterns_escapes)) -end - -local simple_escapes = { - ["-"] = "%-", - ["."] = "%.", - ["?"] = ".", - ["*"] = ".*", -} - -function string:simpleesc() - return (gsub(self,".",simple_escapes)) -end - -function string:tohash() - local t = { } - for s in gmatch(self,"([^, ]+)") do -- lpeg - t[s] = true - end - return t -end - -local pattern = lpeg.Ct(lpeg.C(1)^0) - -function string:totable() - return lpegmatch(pattern,self) -end - ---~ for _, str in ipairs { ---~ "1234567123456712345671234567", ---~ "a\tb\tc", ---~ "aa\tbb\tcc", ---~ "aaa\tbbb\tccc", ---~ "aaaa\tbbbb\tcccc", ---~ "aaaaa\tbbbbb\tccccc", ---~ "aaaaaa\tbbbbbb\tcccccc", ---~ } do print(string.tabtospace(str)) end - -function string.tabtospace(str,tab) - -- we don't handle embedded newlines - while true do - local s = find(str,"\t") - if s then - if not tab then tab = 7 end -- only when found - local d = tab-(s-1) % tab - if d > 0 then - str = gsub(str,"\t",rep(" ",d),1) - else - str = gsub(str,"\t","",1) - end - else - break - end - end - return str -end - -function string:compactlong() -- strips newlines and leading spaces - self = gsub(self,"[\n\r]+ *","") - self = gsub(self,"^ *","") - return self -end - -function string:striplong() -- strips newlines and leading spaces - self = gsub(self,"^%s*","") - self = gsub(self,"[\n\r]+ *","\n") - return self -end - -function string:topattern(lowercase,strict) - if lowercase then - self = lower(self) - end - self = gsub(self,".",simple_escapes) - if self == "" then - self = ".*" - elseif strict then - self = "^" .. self .. "$" - end - return self -end - -end -- closure - -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" -} - -local lpeg = require("lpeg") - -lpeg.patterns = lpeg.patterns or { } -- so that we can share -local patterns = lpeg.patterns - -local P, R, S, Ct, C, Cs, Cc, V = lpeg.P, lpeg.R, lpeg.S, lpeg.Ct, lpeg.C, lpeg.Cs, lpeg.Cc, lpeg.V -local match = lpeg.match - -local digit, sign = R('09'), S('+-') -local cr, lf, crlf = P("\r"), P("\n"), P("\r\n") -local utf8byte = R("\128\191") - -patterns.utf8byte = utf8byte -patterns.utf8one = R("\000\127") -patterns.utf8two = R("\194\223") * utf8byte -patterns.utf8three = R("\224\239") * utf8byte * utf8byte -patterns.utf8four = R("\240\244") * utf8byte * utf8byte * utf8byte - -patterns.digit = digit -patterns.sign = sign -patterns.cardinal = sign^0 * digit^1 -patterns.integer = sign^0 * digit^1 -patterns.float = sign^0 * digit^0 * P('.') * digit^1 -patterns.number = patterns.float + 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 = S(" ") -patterns.eol = S("\n\r") -patterns.spacer = S(" \t\f\v") -- + string.char(0xc2, 0xa0) if we want utf (cf mail roberto) -patterns.newline = crlf + cr + lf -patterns.nonspace = 1 - patterns.space -patterns.nonspacer = 1 - patterns.spacer -patterns.whitespace = patterns.eol + patterns.spacer -patterns.nonwhitespace = 1 - patterns.whitespace -patterns.utf8 = patterns.utf8one + patterns.utf8two + patterns.utf8three + patterns.utf8four -patterns.utfbom = P('\000\000\254\255') + P('\255\254\000\000') + P('\255\254') + P('\254\255') + P('\239\187\191') - -function lpeg.anywhere(pattern) --slightly adapted from website - return P { P(pattern) + 1 * V(1) } -- why so complex? -end - -function lpeg.splitter(pattern, action) - return (((1-P(pattern))^1)/action+1)^0 -end - -local spacing = patterns.spacer^0 * patterns.newline -- sort of strip -local empty = spacing * Cc("") -local nonempty = Cs((1-spacing)^1) * spacing^-1 -local content = (empty + nonempty)^1 - -local capture = Ct(content^0) - -function string:splitlines() - return match(capture,self) -end - -patterns.textline = content - ---~ local p = lpeg.splitat("->",false) print(match(p,"oeps->what->more")) -- oeps what more ---~ local p = lpeg.splitat("->",true) print(match(p,"oeps->what->more")) -- oeps what->more ---~ local p = lpeg.splitat("->",false) print(match(p,"oeps")) -- oeps ---~ local p = lpeg.splitat("->",true) print(match(p,"oeps")) -- oeps - -local splitters_s, splitters_m = { }, { } - -local function splitat(separator,single) - local splitter = (single and splitters_s[separator]) or splitters_m[separator] - if not splitter then - separator = P(separator) - if single then - local other, any = C((1 - separator)^0), P(1) - splitter = other * (separator * C(any^0) + "") -- ? - splitters_s[separator] = splitter - else - local other = C((1 - separator)^0) - splitter = other * (separator * other)^0 - splitters_m[separator] = splitter - end - end - return splitter -end - -lpeg.splitat = splitat - -local cache = { } - -function string:split(separator) - local c = cache[separator] - if not c then - c = Ct(splitat(separator)) - cache[separator] = c - end - return match(c,self) -end - -local cache = { } - -function string:checkedsplit(separator) - local c = cache[separator] - if not c then - separator = P(separator) - local other = C((1 - separator)^0) - c = Ct(separator^0 * other * (separator^1 * other)^0) - cache[separator] = c - end - return match(c,self) -end - ---~ function lpeg.L(list,pp) ---~ local p = pp ---~ for l=1,#list do ---~ if p then ---~ p = p + P(list[l]) ---~ else ---~ p = P(list[l]) ---~ end ---~ end ---~ return p ---~ end - ---~ from roberto's site: - -local f1 = string.byte - -local function f2(s) local c1, c2 = f1(s,1,2) return c1 * 64 + c2 - 12416 end -local function f3(s) local c1, c2, c3 = f1(s,1,3) return (c1 * 64 + c2) * 64 + c3 - 925824 end -local function f4(s) local c1, c2, c3, c4 = f1(s,1,4) return ((c1 * 64 + c2) * 64 + c3) * 64 + c4 - 63447168 end - -patterns.utf8byte = patterns.utf8one/f1 + patterns.utf8two/f2 + patterns.utf8three/f3 + patterns.utf8four/f4 - -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" -} - -boolean = boolean or { } - -local type, tonumber = type, tonumber - -function boolean.tonumber(b) - if b then return 1 else return 0 end -end - -function toboolean(str,tolerant) - if tolerant then - local tstr = type(str) - if tstr == "string" then - return str == "true" or str == "yes" or str == "on" or str == "1" or str == "t" - elseif tstr == "number" then - return tonumber(str) ~= 0 - elseif tstr == "nil" then - return false - else - return str - end - elseif str == "true" then - return true - elseif str == "false" then - return false - else - return str - end -end - -function string.is_boolean(str) - 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 nil -end - -function boolean.alwaystrue() - return true -end - -function boolean.falsetrue() - return false -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" -} - -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 - -if not math.div then - function math.div(n,m) - return floor(n/m) - end -end - -if not math.mod then - function math.mod(n,m) - return n % m - end -end - -local pipi = 2*math.pi/360 - -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 -- 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" -} - -table.join = table.concat - -local concat, sort, insert, remove = table.concat, table.sort, table.insert, table.remove -local format, find, gsub, lower, dump, match = string.format, string.find, string.gsub, string.lower, string.dump, string.match -local getmetatable, setmetatable = getmetatable, setmetatable -local type, next, tostring, tonumber, ipairs, pairs = type, next, tostring, tonumber, ipairs, pairs -local unpack = unpack or table.unpack - -function table.strip(tab) - local lst = { } - for i=1,#tab do - local s = gsub(tab[i],"^%s*(.-)%s*$","%1") - if s == "" then - -- skip this one - else - lst[#lst+1] = s - end - end - return lst -end - -function table.keys(t) - local k = { } - for key, _ in next, t do - k[#k+1] = key - end - return k -end - -local function compare(a,b) - return (tostring(a) < tostring(b)) -end - -local function sortedkeys(tab) - local srt, kind = { }, 0 -- 0=unknown 1=string, 2=number 3=mixed - for key,_ in next, tab do - srt[#srt+1] = key - if kind == 3 then - -- no further check - else - local tkey = type(key) - if tkey == "string" then - -- if kind == 2 then kind = 3 else kind = 1 end - kind = (kind == 2 and 3) or 1 - elseif tkey == "number" then - -- if kind == 1 then kind = 3 else kind = 2 end - kind = (kind == 1 and 3) or 2 - else - kind = 3 - end - end - end - if kind == 0 or kind == 3 then - sort(srt,compare) - else - sort(srt) - end - return srt -end - -local function sortedhashkeys(tab) -- fast one - local srt = { } - for key,_ in next, tab do - srt[#srt+1] = key - end - sort(srt) - return srt -end - -table.sortedkeys = sortedkeys -table.sortedhashkeys = sortedhashkeys - -function table.sortedpairs(t) - local s = sortedhashkeys(t) -- maybe just sortedkeys - local n = 0 - local function kv(s) - n = n + 1 - local k = s[n] - return k, t[k] - end - return kv, s -end - -function table.append(t, list) - for _,v in next, list do - insert(t,v) - end -end - -function table.prepend(t, list) - for k,v in next, list do - insert(t,k,v) - end -end - -function table.merge(t, ...) -- first one is target - t = t or {} - local lst = {...} - for i=1,#lst do - for k, v in next, lst[i] do - t[k] = v - end - end - return t -end - -function table.merged(...) - local tmp, lst = { }, {...} - for i=1,#lst do - for k, v in next, lst[i] do - tmp[k] = v - end - end - return tmp -end - -function table.imerge(t, ...) - local lst = {...} - for i=1,#lst do - local nst = lst[i] - for j=1,#nst do - t[#t+1] = nst[j] - end - end - return t -end - -function table.imerged(...) - local tmp, lst = { }, {...} - for i=1,#lst do - local nst = lst[i] - for j=1,#nst do - tmp[#tmp+1] = nst[j] - end - end - return tmp -end - -local function fastcopy(old) -- fast one - if old then - local new = { } - for k,v in next, old do - if type(v) == "table" then - new[k] = fastcopy(v) -- was just table.copy - else - new[k] = v - end - end - -- optional second arg - local mt = getmetatable(old) - if mt then - setmetatable(new,mt) - end - return new - else - return { } - end -end - -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 - end - local mt = getmetatable(t) - if mt then - setmetatable(tcopy,mt) - end - return tcopy -end - -table.fastcopy = fastcopy -table.copy = copy - --- rougly: 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 - -function table.replace(a,b) - for k,v in next, b do - a[k] = v - end -end - --- slower than #t on indexed tables (#t only returns the size of the numerically indexed slice) - -function table.is_empty(t) - return not t or not next(t) -end - -function table.one_entry(t) - local n = next(t) - return n and not next(t,n) -end - -function table.starts_at(t) - return ipairs(t,1)(t,0) -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 - end - return h -end - -function table.fromhash(t) - local h = { } - for k, v in next, t do -- no ipairs here - if v then h[#h+1] = k end - end - return h -end - ---~ print(table.serialize(t), "\n") ---~ print(table.serialize(t,"name"), "\n") ---~ print(table.serialize(t,false), "\n") ---~ print(table.serialize(t,true), "\n") ---~ print(table.serialize(t,"name",true), "\n") ---~ print(table.serialize(t,"name",true,true), "\n") - -table.serialize_functions = true -table.serialize_compact = true -table.serialize_inline = true - -local noquotes, hexify, handle, reduce, compact, inline, functions - -local reserved = table.tohash { -- intercept a language flaw, 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', -} - -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 = { } - for i=1,#t do - local v = t[i] - local tv = type(v) - if tv == "number" then - if hexify then - tt[#tt+1] = format("0x%04X",v) - else - tt[#tt+1] = tostring(v) -- tostring not needed - end - elseif tv == "boolean" then - tt[#tt+1] = tostring(v) - elseif tv == "string" then - tt[#tt+1] = format("%q",v) - else - tt = nil - break - end - end - return tt - end - end - return nil -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 - -local function do_serialize(root,name,depth,level,indexed) - if level > 0 then - depth = depth .. " " - if indexed then - handle(format("%s{",depth)) - elseif name then - --~ handle(format("%s%s={",depth,key(name))) - if type(name) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s[0x%04X]={",depth,name)) - else - handle(format("%s[%s]={",depth,name)) - end - elseif noquotes and not reserved[name] and find(name,"^%a[%w%_]*$") then - handle(format("%s%s={",depth,name)) - else - handle(format("%s[%q]={",depth,name)) - end - else - handle(format("%s{",depth)) - 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 - 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 sk = sortedkeys(root) - for i=1,#sk do - local k = sk[i] - local v = root[k] - --~ if v == root then - -- circular - --~ else - local t = type(v) - if compact and first and type(k) == "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 loadstring(%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 hexify then - --~ handle(format("%s %s=0x%04X,",depth,key(k),v)) - --~ else - --~ handle(format("%s %s=%s,",depth,key(k),v)) -- %.99g - --~ end - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=0x%04X,",depth,k,v)) - else - handle(format("%s [%s]=%s,",depth,k,v)) -- %.99g - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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 - --~ handle(format("%s %s=%s,",depth,key(k),v)) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=%s,",depth,k,v)) - else - handle(format("%s [%s]=%s,",depth,k,v)) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then - handle(format("%s %s=%s,",depth,k,v)) - else - handle(format("%s [%q]=%s,",depth,k,v)) - end - else - --~ handle(format("%s %s=%q,",depth,key(k),v)) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=%q,",depth,k,v)) - else - handle(format("%s [%s]=%q,",depth,k,v)) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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 - --~ handle(format("%s %s={},",depth,key(k))) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]={},",depth,k)) - else - handle(format("%s [%s]={},",depth,k)) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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 - --~ handle(format("%s %s={ %s },",depth,key(k),concat(st,", "))) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]={ %s },",depth,k,concat(st,", "))) - else - handle(format("%s [%s]={ %s },",depth,k,concat(st,", "))) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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 - --~ handle(format("%s %s=%s,",depth,key(k),tostring(v))) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=%s,",depth,k,tostring(v))) - else - handle(format("%s [%s]=%s,",depth,k,tostring(v))) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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 - --~ handle(format('%s %s=loadstring(%q),',depth,key(k),dump(v))) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=loadstring(%q),",depth,k,dump(v))) - else - handle(format("%s [%s]=loadstring(%q),",depth,k,dump(v))) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") then - handle(format("%s %s=loadstring(%q),",depth,k,dump(v))) - else - handle(format("%s [%q]=loadstring(%q),",depth,k,dump(v))) - end - end - else - --~ handle(format("%s %s=%q,",depth,key(k),tostring(v))) - if type(k) == "number" then -- or find(k,"^%d+$") then - if hexify then - handle(format("%s [0x%04X]=%q,",depth,k,tostring(v))) - else - handle(format("%s [%s]=%q,",depth,k,tostring(v))) - end - elseif noquotes and not reserved[k] and find(k,"^%a[%w%_]*$") 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)) - end -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(root,name,_handle,_reduce,_noquotes,_hexify) - noquotes = _noquotes - hexify = _hexify - handle = _handle or print - reduce = _reduce or false - compact = table.serialize_compact - inline = compact and table.serialize_inline - functions = table.serialize_functions - local tname = type(name) - 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 - else - handle("t={") - end - if root and next(root) then - do_serialize(root,name,"",0,indexed) - end - handle("}") -end - ---~ name: ---~ ---~ true : return { } ---~ false : { } ---~ nil : t = { } ---~ string : string = { } ---~ 'return' : return { } ---~ number : [number] = { } - -function table.serialize(root,name,reduce,noquotes,hexify) - local t = { } - local function flush(s) - t[#t+1] = s - end - serialize(root,name,flush,reduce,noquotes,hexify) - return concat(t,"\n") -end - -function table.tohandle(handle,root,name,reduce,noquotes,hexify) - serialize(root,name,handle,reduce,noquotes,hexify) -end - --- 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 - -table.tofile_maxtab = 2*1024 - -function table.tofile(filename,root,name,reduce,noquotes,hexify) - local f = io.open(filename,'w') - if f then - local maxtab = table.tofile_maxtab - if maxtab > 1 then - local t = { } - local function flush(s) - t[#t+1] = s - if #t > maxtab then - f:write(concat(t,"\n"),"\n") -- hm, write(sometable) should be nice - t = { } - end - end - serialize(root,name,flush,reduce,noquotes,hexify) - f:write(concat(t,"\n"),"\n") - else - local function flush(s) - f:write(s,"\n") - end - serialize(root,name,flush,reduce,noquotes,hexify) - end - f:close() - end -end - -local function flatten(t,f,complete) -- is this used? meybe a variant with next, ... - for i=1,#t do - local v = t[i] - if type(v) == "table" then - if complete or type(v[1]) == "table" then - flatten(v,f,complete) - else - f[#f+1] = v - end - else - f[#f+1] = v - end - end -end - -function table.flatten(t) - local f = { } - flatten(t,f,true) - return f -end - -function table.unnest(t) -- bad name - local f = { } - flatten(t,f,false) - return f -end - -table.flatten_one_level = table.unnest - --- a better one: - -local function flattened(t,f) - if not f then - f = { } - end - for k, v in next, t do - if type(v) == "table" then - flattened(v,f) - else - f[k] = v - end - end - return f -end - -table.flattened = flattened - --- the next three may disappear - -function table.remove_value(t,value) -- todo: n - if value then - for i=1,#t do - if t[i] == value then - remove(t,i) - -- remove all, so no: return - end - end - end -end - -function table.insert_before_value(t,value,str) - if str then - if value then - for i=1,#t do - if t[i] == value then - insert(t,i,str) - return - end - end - end - insert(t,1,str) - elseif value then - insert(t,1,value) - end -end - -function table.insert_after_value(t,value,str) - if str then - if value then - for i=1,#t do - if t[i] == value then - insert(t,i+1,str) - return - end - end - end - t[#t+1] = str - elseif value then - t[#t+1] = value - 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 - else - return false - end -end - -local function identical(a,b) -- assumes same structure - for ka, va in next, a do - local vb = b[k] - if va == vb then - -- same - elseif type(va) == "table" and type(vb) == "table" then - if not identical(va,vb) then - return false - end - else - return false - end - end - return true -end - -table.are_equal = are_equal -table.identical = identical - --- maybe also make a combined one - -function table.compact(t) - if t then - for k,v in next, t do - if not next(v) then - t[k] = nil - end - end - 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, e = 0, next(t) - while e do - n, e = n + 1, next(t,e) - end - return n -end - -function table.swapped(t) - local s = { } - for k, v in next, t do - s[v] = k - end - return s -end - ---~ function table.are_equal(a,b) ---~ return table.serialize(a) == table.serialize(b) ---~ end - -function table.clone(t,p) -- t is optional or nil or table - if not p then - t, p = { }, t or { } - elseif not t then - t = { } - end - setmetatable(t, { __index = function(_,key) return p[key] end }) -- why not __index = p ? - return t -end - -function table.hexed(t,seperator) - local tt = { } - for i=1,#t do tt[i] = format("0x%04X",t[i]) end - return concat(tt,seperator or " ") -end - -function table.reverse_hash(h) - local r = { } - for k,v in next, h do - r[v] = lower(gsub(k," ","")) - end - return r -end - -function table.reverse(t) - local tt = { } - if #t > 0 then - for i=#t,1,-1 do - tt[#tt+1] = t[i] - end - end - return tt -end - -function table.insert_before_value(t,value,extra) - for i=1,#t do - if t[i] == extra then - remove(t,i) - end - end - for i=1,#t do - if t[i] == value then - insert(t,i,extra) - return - end - end - insert(t,1,extra) -end - -function table.insert_after_value(t,value,extra) - for i=1,#t do - if t[i] == extra then - remove(t,i) - end - end - for i=1,#t do - if t[i] == value then - insert(t,i+1,extra) - return - end - end - insert(t,#t+1,extra) -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" -} - --- needs a cleanup - -file = file or { } - -local concat = table.concat -local find, gmatch, match, gsub, sub, char = string.find, string.gmatch, string.match, string.gsub, string.sub, string.char -local lpegmatch = lpeg.match - -function file.removesuffix(filename) - return (gsub(filename,"%.[%a%d]+$","")) -end - -function file.addsuffix(filename, suffix) - if not suffix or suffix == "" then - return filename - elseif not find(filename,"%.[%a%d]+$") then - return filename .. "." .. suffix - else - return filename - end -end - -function file.replacesuffix(filename, suffix) - return (gsub(filename,"%.[%a%d]+$","")) .. "." .. suffix -end - -function file.dirname(name,default) - return match(name,"^(.+)[/\\].-$") or (default or "") -end - -function file.basename(name) - return match(name,"^.+[/\\](.-)$") or name -end - -function file.nameonly(name) - return (gsub(match(name,"^.+[/\\](.-)$") or name,"%..*$","")) -end - -function file.extname(name,default) - return match(name,"^.+%.([^/\\]-)$") or default or "" -end - -file.suffix = file.extname - ---~ function file.join(...) ---~ local pth = concat({...},"/") ---~ pth = gsub(pth,"\\","/") ---~ local a, b = match(pth,"^(.*://)(.*)$") ---~ if a and b then ---~ return a .. gsub(b,"//+","/") ---~ end ---~ a, b = match(pth,"^(//)(.*)$") ---~ if a and b then ---~ return a .. gsub(b,"//+","/") ---~ end ---~ return (gsub(pth,"//+","/")) ---~ end - -local trick_1 = char(1) -local trick_2 = "^" .. trick_1 .. "/+" - -function file.join(...) - local lst = { ... } - local a, b = lst[1], lst[2] - if a == "" then - lst[1] = trick_1 - elseif b and find(a,"^/+$") and find(b,"^/") then - lst[1] = "" - lst[2] = gsub(b,"^/+","") - end - local pth = concat(lst,"/") - pth = gsub(pth,"\\","/") - local a, b = match(pth,"^(.*://)(.*)$") - if a and b then - return a .. gsub(b,"//+","/") - end - a, b = match(pth,"^(//)(.*)$") - if a and b then - return a .. gsub(b,"//+","/") - end - pth = gsub(pth,trick_2,"") - return (gsub(pth,"//+","/")) -end - ---~ print(file.join("//","/y")) ---~ print(file.join("/","/y")) ---~ print(file.join("","/y")) ---~ print(file.join("/x/","/y")) ---~ print(file.join("x/","/y")) ---~ print(file.join("http://","/y")) ---~ print(file.join("http://a","/y")) ---~ print(file.join("http:///a","/y")) ---~ print(file.join("//nas-1","/y")) - -function file.iswritable(name) - local a = lfs.attributes(name) or lfs.attributes(file.dirname(name,".")) - return a and sub(a.permissions,2,2) == "w" -end - -function file.isreadable(name) - local a = lfs.attributes(name) - return a and sub(a.permissions,1,1) == "r" -end - -file.is_readable = file.isreadable -file.is_writable = file.iswritable - --- todo: lpeg - ---~ function file.split_path(str) ---~ local t = { } ---~ str = gsub(str,"\\", "/") ---~ str = gsub(str,"(%a):([;/])", "%1\001%2") ---~ for name in gmatch(str,"([^;:]+)") do ---~ if name ~= "" then ---~ t[#t+1] = gsub(name,"\001",":") ---~ end ---~ end ---~ return t ---~ end - -local checkedsplit = string.checkedsplit - -function file.split_path(str,separator) - str = gsub(str,"\\","/") - return checkedsplit(str,separator or io.pathseparator) -end - -function file.join_path(tab) - return concat(tab,io.pathseparator) -- can have trailing // -end - --- we can hash them weakly - -function file.collapse_path(str) - str = gsub(str,"\\","/") - if find(str,"/") then - str = gsub(str,"^%./",(gsub(lfs.currentdir(),"\\","/")) .. "/") -- ./xx in qualified - str = gsub(str,"/%./","/") - local n, m = 1, 1 - while n > 0 or m > 0 do - str, n = gsub(str,"[^/%.]+/%.%.$","") - str, m = gsub(str,"[^/%.]+/%.%./","") - end - str = gsub(str,"([^/])/$","%1") - -- str = gsub(str,"^%./","") -- ./xx in qualified - str = gsub(str,"/%.$","") - end - if str == "" then str = "." end - return str -end - ---~ print(file.collapse_path("/a")) ---~ print(file.collapse_path("a/./b/..")) ---~ print(file.collapse_path("a/aa/../b/bb")) ---~ print(file.collapse_path("a/../..")) ---~ print(file.collapse_path("a/.././././b/..")) ---~ print(file.collapse_path("a/./././b/..")) ---~ print(file.collapse_path("a/b/c/../..")) - -function file.robustname(str) - return (gsub(str,"[^%a%d%/%-%.\\]+","-")) -end - -file.readdata = io.loaddata -file.savedata = io.savedata - -function file.copy(oldname,newname) - file.savedata(newname,io.loaddata(oldname)) -end - --- lpeg variants, slightly faster, not always - ---~ local period = lpeg.P(".") ---~ local slashes = lpeg.S("\\/") ---~ local noperiod = 1-period ---~ local noslashes = 1-slashes ---~ local name = noperiod^1 - ---~ local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * lpeg.C(noperiod^1) * -1 - ---~ function file.extname(name) ---~ return lpegmatch(pattern,name) or "" ---~ end - ---~ local pattern = lpeg.Cs(((period * noperiod^1 * -1)/"" + 1)^1) - ---~ function file.removesuffix(name) ---~ return lpegmatch(pattern,name) ---~ end - ---~ local pattern = (noslashes^0 * slashes)^1 * lpeg.C(noslashes^1) * -1 - ---~ function file.basename(name) ---~ return lpegmatch(pattern,name) or name ---~ end - ---~ local pattern = (noslashes^0 * slashes)^1 * lpeg.Cp() * noslashes^1 * -1 - ---~ function file.dirname(name) ---~ local p = lpegmatch(pattern,name) ---~ if p then ---~ return sub(name,1,p-2) ---~ else ---~ return "" ---~ end ---~ end - ---~ local pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * lpeg.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 pattern = (noslashes^0 * slashes)^0 * (noperiod^1 * period)^1 * lpeg.Cp() * noperiod^1 * -1 - ---~ function file.replacesuffix(name,suffix) ---~ local p = lpegmatch(pattern,name) ---~ if p then ---~ return sub(name,1,p-2) .. "." .. suffix ---~ else ---~ return name .. "." .. suffix ---~ end ---~ end - ---~ local pattern = (noslashes^0 * slashes)^0 * lpeg.Cp() * ((noperiod^1 * period)^1 * lpeg.Cp() + lpeg.P(true)) * noperiod^1 * -1 - ---~ function file.nameonly(name) ---~ local a, b = lpegmatch(pattern,name) ---~ if b then ---~ return sub(name,a,b-2) ---~ elseif a then ---~ return sub(name,a) ---~ else ---~ return name ---~ end ---~ end - ---~ local test = file.extname ---~ local test = file.basename ---~ local test = file.dirname ---~ local test = file.addsuffix ---~ local test = file.replacesuffix ---~ local test = file.nameonly - ---~ print(1,test("./a/b/c/abd.def.xxx","!!!")) ---~ print(2,test("./../b/c/abd.def.xxx","!!!")) ---~ print(3,test("a/b/c/abd.def.xxx","!!!")) ---~ print(4,test("a/b/c/def.xxx","!!!")) ---~ print(5,test("a/b/c/def","!!!")) ---~ print(6,test("def","!!!")) ---~ print(7,test("def.xxx","!!!")) - ---~ local tim = os.clock() for i=1,250000 do local ext = test("abd.def.xxx","!!!") end print(os.clock()-tim) - --- also rewrite previous - -local letter = lpeg.R("az","AZ") + lpeg.S("_-+") -local separator = lpeg.P("://") - -local qualified = lpeg.P(".")^0 * lpeg.P("/") + letter*lpeg.P(":") + letter^1*separator + letter^1 * lpeg.P("/") -local rootbased = lpeg.P("/") + letter*lpeg.P(":") - --- ./name ../name /name c: :// name/name - -function file.is_qualified_path(filename) - return lpegmatch(qualified,filename) ~= nil -end - -function file.is_rootbased_path(filename) - return lpegmatch(rootbased,filename) ~= nil -end - -local slash = lpeg.S("\\/") -local period = lpeg.P(".") -local drive = lpeg.C(lpeg.R("az","AZ")) * lpeg.P(":") -local path = lpeg.C(((1-slash)^0 * slash)^0) -local suffix = period * lpeg.C(lpeg.P(1-period)^0 * lpeg.P(-1)) -local base = lpeg.C((1-suffix)^0) - -local pattern = (drive + lpeg.Cc("")) * (path + lpeg.Cc("")) * (base + lpeg.Cc("")) * (suffix + lpeg.Cc("")) - -function file.splitname(str) -- returns drive, path, base, suffix - return lpegmatch(pattern,str) -end - --- function test(t) for k, v in pairs(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" } - ---~ -- todo: ---~ ---~ if os.type == "windows" then ---~ local currentdir = lfs.currentdir ---~ function lfs.currentdir() ---~ return (gsub(currentdir(),"\\","/")) ---~ 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 byte, find, gsub = string.byte, string.find, string.gsub - -if string.find(os.getenv("PATH"),";") then - io.fileseparator, io.pathseparator = "\\", ";" -else - io.fileseparator, io.pathseparator = "/" , ":" -end - -function io.loaddata(filename,textmode) - local f = io.open(filename,(textmode and 'r') or 'rb') - if f then - -- collectgarbage("step") -- sometimes makes a big difference in mem consumption - local data = f:read('*all') - -- garbagecollector.check(data) - f:close() - return data - else - return nil - end -end - -function io.savedata(filename,data,joiner) - local f = io.open(filename,"wb") - if f then - if type(data) == "table" then - f:write(table.join(data,joiner or "")) - elseif type(data) == "function" then - data(f) - else - f:write(data or "") - end - f:close() - return true - else - return false - end -end - -function io.exists(filename) - local f = io.open(filename) - if f == nil then - return false - else - assert(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") - assert(f:close()) - return s - end -end - -function io.noflines(f) - local n = 0 - for _ in f:lines() do - n = n + 1 - end - f:seek('set',0) - return n -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 - else - return nil, nil - 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) - else - return nil, nil, nil, nil - end - end, - [2] = function(f) - local a, b = f:read(1,1) - if b then - return byte(a), byte(b) - else - return nil, nil - end - end, - [1] = function (f) - local a = f:read(1) - if a then - return byte(a) - else - return nil - end - end, - [-2] = function (f) - local a, b = f:read(1,1) - if b then - return byte(b), byte(a) - else - return nil, nil - 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) - else - return nil, nil, nil, nil - 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(string.format(" [%s]",table.concat(options,"|"))) - end - if default then - io.write(string.format(" [%s]",default)) - end - io.write(string.format(" ")) - 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 _,v in pairs(options) do - if v == answer then - return answer - end - end - local pattern = "^" .. answer - for _,v in pairs(options) do - if find(v,pattern) then - return v - end - end - end - end -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['luat-dum'] = { - 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" -} - -local dummyfunction = function() end - -statistics = { - register = dummyfunction, - starttiming = dummyfunction, - stoptiming = dummyfunction, -} -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 = { - report = dummyfunction, - simple = dummyfunction, -} -tasks = { - new = dummyfunction, - actions = dummyfunction, - appendaction = dummyfunction, - prependaction = dummyfunction, -} -callbacks = { - register = function(n,f) return callback.register(n,f) end, -} - --- 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 dictionary", - cid = "cid maps", - fea = "font feature files", -} - -function resolvers.find_file(name,kind) - name = string.gsub(name,"\\","\/") - kind = string.lower(kind) - return kpse.find_file(name,(kind and kind ~= "" and (remapper[kind] or kind)) or file.extname(name,"tex")) -end - -function resolvers.findbinfile(name,kind) - if not kind or kind == "" then - kind = file.extname(name) -- string.match(name,"%.([^%.]-)$") - end - return resolvers.find_file(name,(kind and remapper[kind]) or kind) -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['data-con'] = { - 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 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-- -<p>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).</p> - -<p>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.</p> - -<p>Examples of usage can be found in the font related code.</p> ---ldx]]-- - -containers = containers or { } - -containers.usecache = true - -local function report(container,tag,name) - if trace_cache or trace_containers then - logs.report(format("%s cache",container.subcategory),"%s: %s",tag,name or 'invalid') - end -end - -local allocated = { } - --- tracing - -function containers.define(category, subcategory, version, enabled) - return function() - 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 1.000, - trace = false, - path = caches and caches.setpath and caches.setpath(category,subcategory), - } - c[subcategory] = s - end - return s - else - return nil - end - end -end - -function containers.is_usable(container, name) - return container.enabled and caches and caches.iswritable(container.path, name) -end - -function containers.is_valid(container, name) - if name and name ~= "" then - local storage = container.storage[name] - return storage and not table.is_empty(storage) and storage.cache_version == container.version - else - return false - end -end - -function containers.read(container,name) - if container.enabled and caches and not container.storage[name] and containers.usecache then - container.storage[name] = caches.loaddata(container.path,name) - if containers.is_valid(container,name) then - report(container,"loaded",name) - else - container.storage[name] = nil - end - end - if container.storage[name] then - report(container,"reusing",name) - end - return container.storage[name] -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.path, 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 ['node-ini'] = { - 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" -} - ---[[ldx-- -<p>Most of the code that had accumulated here is now separated in -modules.</p> ---ldx]]-- - --- this module is being reconstructed - -local utf = unicode.utf8 -local next, type = next, type -local format, concat, match, utfchar = string.format, table.concat, string.match, utf.char - -local chardata = characters and characters.data - ---[[ldx-- -<p>We start with a registration system for atributes so that we can use the -symbolic names later on.</p> ---ldx]]-- - -attributes = attributes or { } - -attributes.names = attributes.names or { } -attributes.numbers = attributes.numbers or { } -attributes.list = attributes.list or { } -attributes.unsetvalue = -0x7FFFFFFF - -storage.register("attributes/names", attributes.names, "attributes.names") -storage.register("attributes/numbers", attributes.numbers, "attributes.numbers") -storage.register("attributes/list", attributes.list, "attributes.list") - -local names, numbers, list = attributes.names, attributes.numbers, attributes.list - -function attributes.define(name,number) -- at the tex end - if not numbers[name] then - numbers[name], names[number], list[number] = number, name, { } - end -end - ---[[ldx-- -<p>We can use the attributes in the range 127-255 (outside user space). These -are only used when no attribute is set at the \TEX\ end which normally -happens in <l n='context'/>.</p> ---ldx]]-- - -storage.shared.attributes_last_private = storage.shared.attributes_last_private or 127 - -function attributes.private(name) -- at the lua end (hidden from user) - local number = numbers[name] - if not number then - local last = storage.shared.attributes_last_private or 127 - if last < 255 then - last = last + 1 - storage.shared.attributes_last_private = last - end - number = last - numbers[name], names[number], list[number] = number, name, { } - end - return number -end - ---[[ldx-- -<p>Access to nodes is what gives <l n='luatex'/> its power. Here we -implement a few helper functions. These functions are rather optimized.</p> ---ldx]]-- - ---[[ldx-- -<p>When manipulating node lists in <l n='context'/>, we will remove -nodes and insert new ones. While node access was implemented, we did -quite some experiments in order to find out if manipulating nodes -in <l n='lua'/> was feasible from the perspective of performance.</p> - -<p>First of all, we noticed that the bottleneck is more with excessive -callbacks (some gets called very often) and the conversion from and to -<l n='tex'/>'s datastructures. However, at the <l n='lua'/> end, we -found that inserting and deleting nodes in a table could become a -bottleneck.</p> - -<p>This resulted in two special situations in passing nodes back to -<l n='tex'/>: a table entry with value <type>false</type> is ignored, -and when instead of a table <type>true</type> is returned, the -original table is used.</p> - -<p>Insertion is handled (at least in <l n='context'/> as follows. When -we need to insert a node at a certain position, we change the node at -that position by a dummy node, tagged <type>inline</type> which itself -has_attribute the original node and one or more new nodes. Before we pass -back the list we collapse the list. Of course collapsing could be built -into the <l n='tex'/> engine, but this is a not so natural extension.</p> - -<p>When we collapse (something that we only do when really needed), we -also ignore the empty nodes. [This is obsolete!]</p> ---ldx]]-- - -nodes = nodes or { } - -local hlist = node.id('hlist') -local vlist = node.id('vlist') -local glyph = node.id('glyph') -local glue = node.id('glue') -local penalty = node.id('penalty') -local kern = node.id('kern') -local whatsit = node.id('whatsit') - -local traverse_id = node.traverse_id -local traverse = node.traverse -local free_node = node.free -local remove_node = node.remove -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after - -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 = insert_node_before -nodes.after = insert_node_after - --- we need to test this, as it might be fixed now - -function nodes.before(h,c,n) - if c then - if c == h then - n.next = h - n.prev = nil - h.prev = n - else - local cp = c.prev - n.next = c - n.prev = cp - if cp then - cp.next = n - end - c.prev = n - return h, n - end - end - return n, n -end - -function nodes.after(h,c,n) - if c then - local cn = c.next - if cn then - n.next = cn - cn.prev = n - else - n.next = nil - end - c.next = n - n.prev = c - return h, n - end - return n, n -end - --- local h, c = nodes.replace(head,current,new) --- local c = nodes.replace(false,current,new) --- local c = nodes.replace(current,new) - -function nodes.replace(head,current,new) -- no head returned if false - if not new then - head, current, new = false, head, current - end - local prev, next = current.prev, current.next - if next then - new.next, next.prev = next, new - end - if prev then - new.prev, prev.next = prev, new - end - if head then - if head == current then - head = new - end - free_node(current) - return head, new - else - free_node(current) - return new - end -end - --- will move - -local function count(stack,flat) - local n = 0 - while stack do - local id = stack.id - if not flat and id == hlist or id == vlist then - local list = stack.list - if list then - n = n + 1 + count(list) -- self counts too - else - n = n + 1 - end - else - n = n + 1 - end - stack = stack.next - end - return n -end - -nodes.count = count - --- new, will move - -function attributes.ofnode(n) - local a = n.attr - if a then - local names = attributes.names - a = a.next - while a do - local number, value = a.number, a.value - texio.write_nl(format("%s : attribute %3i, value %4i, name %s",tostring(n),number,value,names[number] or '?')) - a = a.next - end - end -end - -local left, space = lpeg.P("<"), lpeg.P(" ") - -nodes.filterkey = left * (1-left)^0 * left * space^0 * lpeg.C((1-space)^0) - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['node-res'] = { - 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" -} - -local gmatch, format = string.gmatch, string.format -local copy_node, free_node, free_list, new_node, node_type, node_id = node.copy, node.free, node.flush_list, node.new, node.type, node.id -local tonumber, round = tonumber, math.round - -local glyph_node = node_id("glyph") - ---[[ldx-- -<p>The next function is not that much needed but in <l n='context'/> we use -for debugging <l n='luatex'/> node management.</p> ---ldx]]-- - -nodes = nodes or { } - -nodes.whatsits = { } -- table.swapped(node.whatsits()) - -local reserved = { } -local whatsits = nodes.whatsits - -for k, v in pairs(node.whatsits()) do - whatsits[k], whatsits[v] = v, k -- two way -end - -local function register_node(n) - reserved[#reserved+1] = n - return n -end - -nodes.register = register_node - -function nodes.cleanup_reserved(nofboxes) -- todo - nodes.tracers.steppers.reset() -- todo: make a registration subsystem - local nr, nl = #reserved, 0 - for i=1,nr do - local ri = reserved[i] - -- if not (ri.id == glue_spec and not ri.is_writable) then - free_node(reserved[i]) - -- end - end - if nofboxes then - local tb = tex.box - for i=0,nofboxes do - local l = tb[i] - if l then - free_node(tb[i]) - nl = nl + 1 - end - end - end - reserved = { } - return nr, nl, nofboxes -- can be nil -end - -function nodes.usage() - local t = { } - for n, tag in gmatch(status.node_mem_usage,"(%d+) ([a-z_]+)") do - t[tag] = n - end - return t -end - -local disc = register_node(new_node("disc")) -local kern = register_node(new_node("kern",1)) -local penalty = register_node(new_node("penalty")) -local glue = register_node(new_node("glue")) -- glue.spec = nil -local glue_spec = register_node(new_node("glue_spec")) -local glyph = register_node(new_node("glyph",0)) -local textdir = register_node(new_node("whatsit",whatsits.dir)) -- 7 (6 is local par node) -local rule = register_node(new_node("rule")) -local latelua = register_node(new_node("whatsit",whatsits.late_lua)) -- 35 -local user_n = register_node(new_node("whatsit",whatsits.user_defined)) user_n.type = 100 -- 44 -local user_l = register_node(new_node("whatsit",whatsits.user_defined)) user_l.type = 110 -- 44 -local user_s = register_node(new_node("whatsit",whatsits.user_defined)) user_s.type = 115 -- 44 -local user_t = register_node(new_node("whatsit",whatsits.user_defined)) user_t.type = 116 -- 44 -local left_margin_kern = register_node(new_node("margin_kern",0)) -local right_margin_kern = register_node(new_node("margin_kern",1)) -local lineskip = register_node(new_node("glue",1)) -local baselineskip = register_node(new_node("glue",2)) -local leftskip = register_node(new_node("glue",8)) -local rightskip = register_node(new_node("glue",9)) -local temp = register_node(new_node("temp",0)) - -function nodes.zeroglue(n) - local s = n.spec - return not writable or ( - s.width == 0 - and s.stretch == 0 - and s.shrink == 0 - and s.stretch_order == 0 - and s.shrink_order == 0 - ) -end - -function nodes.glyph(fnt,chr) - local n = copy_node(glyph) - if fnt then n.font = fnt end - if chr then n.char = chr end - return n -end - -function nodes.penalty(p) - local n = copy_node(penalty) - n.penalty = p - return n -end - -function nodes.kern(k) - local n = copy_node(kern) - n.kern = k - return n -end - -function nodes.glue_spec(width,stretch,shrink) - local s = copy_node(glue_spec) - s.width, s.stretch, s.shrink = width, stretch, shrink - return s -end - -local function someskip(skip,width,stretch,shrink) - local n = copy_node(skip) - if not width then - -- no spec - elseif tonumber(width) then - local s = copy_node(glue_spec) - s.width, s.stretch, s.shrink = width, stretch, shrink - n.spec = s - else - -- shared - n.spec = copy_node(width) - end - return n -end - -function nodes.glue(width,stretch,shrink) - return someskip(glue,width,stretch,shrink) -end -function nodes.leftskip(width,stretch,shrink) - return someskip(leftskip,width,stretch,shrink) -end -function nodes.rightskip(width,stretch,shrink) - return someskip(rightskip,width,stretch,shrink) -end -function nodes.lineskip(width,stretch,shrink) - return someskip(lineskip,width,stretch,shrink) -end -function nodes.baselineskip(width,stretch,shrink) - return someskip(baselineskip,width,stretch,shrink) -end - -function nodes.disc() - return copy_node(disc) -end - -function nodes.textdir(dir) - local t = copy_node(textdir) - t.dir = dir - return t -end - -function nodes.rule(width,height,depth,dir) - local n = copy_node(rule) - if width then n.width = width end - if height then n.height = height end - if depth then n.depth = depth end - if dir then n.dir = dir end - return n -end - -function nodes.latelua(code) - local n = copy_node(latelua) - n.data = code - return n -end - -function nodes.leftmarginkern(glyph,width) - local n = copy_node(left_margin_kern) - if not glyph then - logs.fatal("nodes","invalid pointer to left margin glyph node") - elseif glyph.id ~= glyph_node then - logs.fatal("nodes","invalid node type %s for left margin glyph node",node_type(glyph)) - else - n.glyph = glyph - end - if width then - n.width = width - end - return n -end - -function nodes.rightmarginkern(glyph,width) - local n = copy_node(right_margin_kern) - if not glyph then - logs.fatal("nodes","invalid pointer to right margin glyph node") - elseif glyph.id ~= glyph_node then - logs.fatal("nodes","invalid node type %s for right margin glyph node",node_type(p)) - else - n.glyph = glyph - end - if width then - n.width = width - end - return n -end - -function nodes.temp() - return copy_node(temp) -end ---[[ -<p>At some point we ran into a problem that the glue specification -of the zeropoint dimension was overwritten when adapting a glue spec -node. This is a side effect of glue specs being shared. After a -couple of hours tracing and debugging Taco and I came to the -conclusion that it made no sense to complicate the spec allocator -and settled on a writable flag. This all is a side effect of the -fact that some glues use reserved memory slots (with the zeropoint -glue being a noticeable one). So, next we wrap this into a function -and hide it for the user. And yes, LuaTeX now gives a warning as -well.</p> -]]-- - -if tex.luatexversion > 51 then - - function nodes.writable_spec(n) - local spec = n.spec - if not spec then - spec = copy_node(glue_spec) - n.spec = spec - elseif not spec.writable then - spec = copy_node(spec) - n.spec = spec - end - return spec - end - -else - - function nodes.writable_spec(n) - local spec = n.spec - if not spec then - spec = copy_node(glue_spec) - else - spec = copy_node(spec) - end - n.spec = spec - return spec - end - -end - -local cache = { } - -function nodes.usernumber(num) - local n = cache[num] - if n then - return copy_node(n) - else - local n = copy_node(user_n) - if num then n.value = num end - return n - end -end - -function nodes.userlist(list) - local n = copy_node(user_l) - if list then n.value = list end - return n -end - -local cache = { } -- we could use the same cache - -function nodes.userstring(str) - local n = cache[str] - if n then - return copy_node(n) - else - local n = copy_node(user_s) - n.type = 115 - if str then n.value = str end - return n - end -end - -function nodes.usertokens(tokens) - local n = copy_node(user_t) - if tokens then n.value = tokens end - return n -end - -statistics.register("cleaned up reserved nodes", function() - return format("%s nodes, %s lists of %s", nodes.cleanup_reserved(tex.count["lastallocatedbox"])) -end) -- \topofboxstack - -statistics.register("node memory usage", function() -- comes after cleanup ! - return status.node_mem_usage -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" -} - --- tricky ... fonts.ids is not yet defined .. to be solved (maybe general tex ini) - --- 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. - -local next = next - -local trace_injections = false trackers.register("nodes.injections", function(v) trace_injections = v end) - -fonts = fonts or { } -fonts.tfm = fonts.tfm or { } -fonts.ids = fonts.ids or { } - -local fontdata = fonts.ids - -local glyph = node.id('glyph') -local kern = node.id('kern') - -local traverse_id = node.traverse_id -local has_attribute = node.has_attribute -local set_attribute = node.set_attribute -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after - -local newkern = nodes.kern - -local markbase = attributes.private('markbase') -local markmark = attributes.private('markmark') -local markdone = attributes.private('markdone') -local cursbase = attributes.private('cursbase') -local curscurs = attributes.private('curscurs') -local cursdone = attributes.private('cursdone') -local kernpair = attributes.private('kernpair') - -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 - -function nodes.set_cursive(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 - set_attribute(start,cursbase,bound) - set_attribute(nxt,curscurs,bound) - cursives[bound] = { rlmode, dx, dy, ws, wn } - return dx, dy, bound -end - -function nodes.set_pair(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 = has_attribute(current,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 - set_attribute(current,kernpair,bound) - kerns[bound] = { rlmode, x, y, w, h, r2lflag, tfmchr.width } - end - return x, y, w, h, bound - end - return x, y, w, h -- no bound -end - -function nodes.set_kern(current,factor,rlmode,x,tfmchr) - local dx = factor*x - if dx ~= 0 then - local bound = #kerns + 1 - set_attribute(current,kernpair,bound) - kerns[bound] = { rlmode, dx } - end - return dx, bound -end - -function nodes.set_mark(start,base,factor,rlmode,ba,ma,index) --ba=baseanchor, ma=markanchor - local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2]) - local bound = has_attribute(base,markbase) - if bound then - local mb = marks[bound] - if mb then - if not index then index = #mb + 1 end - mb[index] = { dx, dy } - set_attribute(start,markmark,bound) - set_attribute(start,markdone,index) - return dx, dy, bound - else - logs.report("nodes mark", "possible problem, U+%04X is base without data (id: %s)",base.char,bound) - end - end - index = index or 1 - bound = #marks + 1 - set_attribute(base,markbase,bound) - set_attribute(start,markmark,bound) - set_attribute(start,markdone,index) - marks[bound] = { [index] = { dx, dy } } - return dx, dy, bound -end - -function nodes.trace_injection(head) - local function dir(n) - return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or ("unset") - end - local function report(...) - logs.report("nodes finisher",...) - end - report("begin run") - for n in traverse_id(glyph,head) do - if n.subtype < 256 then - local kp = has_attribute(n,kernpair) - local mb = has_attribute(n,markbase) - local mm = has_attribute(n,markmark) - local md = has_attribute(n,markdone) - local cb = has_attribute(n,cursbase) - local cc = has_attribute(n,curscurs) - report("char U+%05X, font=%s",n.char,n.font) - if kp then - local k = kerns[kp] - if k[3] then - report(" 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(" kern: dir=%s, dx=%s",dir(k[1]),k[2] or "?") - end - end - if mb then - report(" markbase: bound=%s",mb) - end - if mm then - local m = marks[mm] - if mb then - local m = m[mb] - if m then - report(" markmark: bound=%s, index=%s, dx=%s, dy=%s",mm,md or "?",m[1] or "?",m[2] or "?") - else - report(" markmark: bound=%s, missing index",mm) - end - else - m = m[1] - report(" markmark: bound=%s, dx=%s, dy=%s",mm,m[1] or "?",m[2] or "?") - end - end - if cb then - report(" cursbase: bound=%s",cb) - end - if cc then - local c = cursives[cc] - report(" curscurs: bound=%s, dir=%s, dx=%s, dy=%s",cc,dir(c[1]),c[2] or "?",c[3] or "?") - end - end - end - report("end run") -end - --- todo: reuse tables (i.e. no collection), but will be extra fields anyway - -function nodes.inject_kerns(head,where,keep) - local has_marks, has_cursives, has_kerns = next(marks), next(cursives), next(kerns) - if has_marks or has_cursives then ---~ if has_marks or has_cursives or has_kerns then - if trace_injections then - nodes.trace_injection(head) - end - -- in the future variant we will not copy items but refs to tables - local done, ky, rl, valid, cx, wx, mk = false, { }, { }, { }, { }, { }, { } - if has_kerns then -- move outside loop - local nf, tm = nil, nil - for n in traverse_id(glyph,head) do - if n.subtype < 256 then - valid[#valid+1] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].marks - end - mk[n] = tm[n.char] - local k = has_attribute(n,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] -- could move in test - end - end - end - end - else - local nf, tm = nil, nil - for n in traverse_id(glyph,head) do - if n.subtype < 256 then - valid[#valid+1] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].marks - end - mk[n] = tm[n.char] - end - end - end - if #valid > 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,#valid do -- valid == glyphs - local n = valid[i] - if not mk[n] then - local n_cursbase = has_attribute(n,cursbase) - if p_cursbase then - local n_curscurs = has_attribute(n,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,#valid do - local p = valid[i] - local p_markbase = has_attribute(p,markbase) - if p_markbase then - local mrks = marks[p_markbase] - for n in traverse_id(glyph,p.next) do - local n_markmark = has_attribute(n,markmark) - if p_markbase == n_markmark then - local index = has_attribute(n,markdone) or 1 - local d = mrks[index] - if d then - -- local rlmode = d[3] -- not used - -- if rlmode and rlmode > 0 then - -- todo - -- 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 - end - else - break - 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, can be sped up when w == nil - local rl, x, w, r2l = k[1], k[2] or 0, k[4] or 0, k[6] - local wx = w - x ---~ if rl < 0 then ---~ if r2l 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 r2l 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 ---~ 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 - nodes.trace_injection(head) - end - for n in traverse_id(glyph,head) do - local k = has_attribute(n,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 ---~ if r2l then ---~ if x ~= 0 then ---~ insert_node_before(head,n,newkern(x)) ---~ end ---~ if wx ~= 0 then ---~ insert_node_after(head,n,newkern(wx)) ---~ end ---~ else ---~ if wx ~= 0 then ---~ insert_node_before(head,n,newkern(wx)) ---~ end ---~ if x ~= 0 then ---~ insert_node_after (head,n,newkern(x)) ---~ end ---~ end ---~ else - if r2l 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 ---~ end - else - -- simple (e.g. kernclass kerns) - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - end - end - end - end - if not keep then - kerns = { } - end - return head, true - else - -- no tracing needed - end - return head, false -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['node-fnt'] = { - 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, type = next, type - -local trace_characters = false trackers.register("nodes.characters", function(v) trace_characters = v end) - -local glyph = node.id('glyph') - -local traverse_id = node.traverse_id -local has_attribute = node.has_attribute - -local starttiming, stoptiming = statistics.starttiming, statistics.stoptiming - -fonts = fonts or { } -fonts.tfm = fonts.tfm or { } -fonts.ids = fonts.ids or { } - -local fontdata = fonts.ids - --- some tests with using an array of dynamics[id] and processes[id] demonstrated --- that there was nothing to gain (unless we also optimize other parts) --- --- maybe getting rid of the intermediate shared can save some time - --- potential speedup: check for subtype < 256 so that we can remove that test --- elsewhere, danger: injected nodes will not be dealt with but that does not --- happen often; we could consider processing sublists but that might need mor --- checking later on; the current approach also permits variants - -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","! purposed so setting them at the TeX end might break the font handler.") - texio.write_nl("log","!") - - tex.attribute[0] = 0 -- else no features - -end - -function nodes.process_characters(head) - -- either next or not, but definitely no already processed list - starttiming(nodes) - local usedfonts, attrfonts, done = { }, { }, false - local a, u, prevfont, prevattr = 0, 0, nil, 0 - for n in traverse_id(glyph,head) do - local font, attr = n.font, has_attribute(n,0) -- zero attribute is reserved for fonts, preset to 0 is faster (first match) - if attr and attr > 0 then - if font ~= prevfont or attr ~= prevattr then - local used = attrfonts[font] - if not used then - used = { } - attrfonts[font] = used - end - if not used[attr] then - -- we do some testing outside the function - local tfmdata = fontdata[font] - local shared = tfmdata.shared - if shared then - local dynamics = shared.dynamics - if dynamics then - local d = shared.set_dynamics(font,dynamics,attr) -- still valid? - if d then - used[attr] = d - a = a + 1 - end - end - end - end - prevfont, prevattr = font, attr - end - elseif font ~= prevfont then - prevfont, prevattr = font, 0 - 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 - u = u + 1 - end - end - else - -- probably nullfont - end - end - else - prevattr = attr - end - end - -- we could combine these and just make the attribute nil - if u == 1 then - local font, processors = next(usedfonts) - local n = #processors - if n > 0 then - local h, d = processors[1](head,font,false) - head, done = h or head, done or d - if n > 1 then - for i=2,n do - local h, d = processors[i](head,font,0) -- false) - head, done = h or head, done or d - end - end - end - elseif u > 0 then - for font, processors in next, usedfonts do - local n = #processors - local h, d = processors[1](head,font,false) - head, done = h or head, done or d - if n > 1 then - for i=2,n do - local h, d = processors[i](head,font,0) -- false) - head, done = h or head, done or d - end - end - end - end - if a == 1 then - local font, dynamics = next(attrfonts) - for attribute, processors in next, dynamics do -- attr can switch in between - local n = #processors - local h, d = processors[1](head,font,attribute) - head, done = h or head, done or d - if n > 1 then - for i=2,n do - local h, d = processors[i](head,font,attribute) - head, done = h or head, done or d - end - end - end - elseif a > 0 then - for font, dynamics in next, attrfonts do - for attribute, processors in next, dynamics do -- attr can switch in between - local n = #processors - local h, d = processors[1](head,font,attribute) - head, done = h or head, done or d - if n > 1 then - for i=2,n do - local h, d = processors[i](head,font,attribute) - head, done = h or head, done or d - end - end - end - end - end - stoptiming(nodes) - if trace_characters then - nodes.report(head,done) - end - return head, true -end - -if node.protect_glyphs then - - nodes.protect_glyphs = node.protect_glyphs - nodes.unprotect_glyphs = node.unprotect_glyphs - -else do - - -- initial value subtype : X000 0001 = 1 = 0x01 = char - -- - -- expected before linebreak : X000 0000 = 0 = 0x00 = glyph - -- X000 0010 = 2 = 0x02 = ligature - -- X000 0100 = 4 = 0x04 = ghost - -- X000 1010 = 10 = 0x0A = leftboundary lig - -- X001 0010 = 18 = 0x12 = rightboundary lig - -- X001 1010 = 26 = 0x1A = both boundaries lig - -- X000 1100 = 12 = 0x1C = leftghost - -- X001 0100 = 20 = 0x14 = rightghost - - function nodes.protect_glyphs(head) - local done = false - for g in traverse_id(glyph,head) do - local s = g.subtype - if s == 1 then - done, g.subtype = true, 256 - elseif s <= 256 then - done, g.subtype = true, 256 + s - end - end - return done - end - - function nodes.unprotect_glyphs(head) - local done = false - for g in traverse_id(glyph,head) do - local s = g.subtype - if s > 256 then - done, g.subtype = true, s - 256 - end - end - return done - end - -end end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['node-dum'] = { - 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" -} - -nodes = nodes or { } - -function nodes.simple_font_handler(head) --- lang.hyphenate(head) - head = nodes.process_characters(head) - nodes.inject_kerns(head) - nodes.protect_glyphs(head) - head = node.ligaturing(head) - head = node.kerning(head) - return head -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-- -<p>Not much is happening here.</p> ---ldx]]-- - -local utf = unicode.utf8 -local format, serialize = string.format, table.serialize -local write_nl = texio.write_nl - -if not fontloader then fontloader = fontforge end - -fontloader.totable = fontloader.to_table - --- vtf comes first --- fix comes last - -fonts = fonts or { } -fonts.ids = fonts.ids or { } -- aka fontdata -fonts.chr = fonts.chr or { } -- aka chardata -fonts.tfm = fonts.tfm or { } - -fonts.mode = 'base' -fonts.private = 0xF0000 -- 0x10FFFF -fonts.verbose = false -- more verbose cache tables - -fonts.ids[0] = { -- nullfont - characters = { }, - descriptions = { }, - name = "nullfont", -} - -fonts.chr[0] = { } - -fonts.methods = fonts.methods or { - base = { tfm = { }, afm = { }, otf = { }, vtf = { }, fix = { } }, - node = { tfm = { }, afm = { }, otf = { }, vtf = { }, fix = { } }, -} - -fonts.initializers = fonts.initializers or { - base = { tfm = { }, afm = { }, otf = { }, vtf = { }, fix = { } }, - node = { tfm = { }, afm = { }, otf = { }, vtf = { }, fix = { } } -} - -fonts.triggers = fonts.triggers or { - 'mode', - 'language', - 'script', - 'strategy', -} - -fonts.processors = fonts.processors or { -} - -fonts.manipulators = fonts.manipulators or { -} - -fonts.define = fonts.define or { } -fonts.define.specify = fonts.define.specify or { } -fonts.define.specify.synonyms = fonts.define.specify.synonyms or { } - --- tracing - -fonts.color = fonts.color or { } - -local attribute = attributes.private('color') -local mapping = (attributes and attributes.list[attribute]) or { } - -local set_attribute = node.set_attribute -local unset_attribute = node.unset_attribute - -function fonts.color.set(n,c) - local mc = mapping[c] - if not mc then - unset_attribute(n,attribute) - else - set_attribute(n,attribute,mc) - end -end -function fonts.color.reset(n) - unset_attribute(n,attribute) -end - --- this will change ... - -function fonts.show_char_data(n) - local tfmdata = fonts.ids[font.current()] - if tfmdata then - if type(n) == "string" then - n = utf.byte(n) - end - local chr = tfmdata.characters[n] - if chr then - write_nl(format("%s @ %s => U%04X => %s => ",tfmdata.fullname,tfmdata.size,n,utf.char(n)) .. serialize(chr,false)) - end - end -end - -function fonts.show_font_parameters() - local tfmdata = fonts.ids[font.current()] - if tfmdata then - local parameters, mathconstants = tfmdata.parameters, tfmdata.MathConstants - local hasparameters, hasmathconstants = parameters and next(parameters), mathconstants and next(mathconstants) - if hasparameters then - write_nl(format("%s @ %s => parameters => ",tfmdata.fullname,tfmdata.size) .. serialize(parameters,false)) - end - if hasmathconstants then - write_nl(format("%s @ %s => math constants => ",tfmdata.fullname,tfmdata.size) .. serialize(mathconstants,false)) - end - if not hasparameters and not hasmathconstants then - write_nl(format("%s @ %s => no parameters and/or mathconstants",tfmdata.fullname,tfmdata.size)) - end - end -end - -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 utf = unicode.utf8 - -local next, format, match, lower, gsub = next, string.format, string.match, string.lower, string.gsub -local concat, sortedkeys, utfbyte, serialize = table.concat, table.sortedkeys, utf.byte, table.serialize - -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) - --- tfmdata has also fast access to indices and unicodes --- to be checked: otf -> tfm -> tfmscaled --- --- watch out: no negative depths and negative eights permitted in regular fonts - ---[[ldx-- -<p>Here we only implement a few helper functions.</p> ---ldx]]-- - -fonts = fonts or { } -fonts.tfm = fonts.tfm or { } -fonts.ids = fonts.ids or { } - -local tfm = fonts.tfm - -fonts.loaded = fonts.loaded or { } -fonts.dontembed = fonts.dontembed or { } -fonts.triggers = fonts.triggers or { } -- brrr -fonts.initializers = fonts.initializers or { } -fonts.initializers.common = fonts.initializers.common or { } - -local fontdata = fonts.ids -local disc = node.id('disc') -local glyph = node.id('glyph') -local set_attribute = node.set_attribute - ---[[ldx-- -<p>The next function encapsulates the standard <l n='tfm'/> loader as -supplied by <l n='luatex'/>.</p> ---ldx]]-- - -tfm.resolve_vf = true -- false -tfm.share_base_kerns = false -- true (.5 sec slower on mk but brings down mem from 410M to 310M, beware: then script/lang share too) -tfm.mathactions = { } -tfm.fontname_mode = "fullpath" - -tfm.enhance = tfm.enhance or function() end - -function tfm.read_from_tfm(specification) - local fname, tfmdata = specification.filename or "", nil - if fname ~= "" then - if trace_defining then - logs.report("define font","loading tfm file %s at size %s",fname,specification.size) - end - tfmdata = font.read_tfm(fname,specification.size) -- not cached, fast enough - if tfmdata then - tfmdata.descriptions = tfmdata.descriptions or { } - if tfm.resolve_vf then - fonts.logger.save(tfmdata,file.extname(fname),specification) -- strange, why here - fname = resolvers.findbinfile(specification.name, 'ovf') - if fname and fname ~= "" then - local vfdata = font.read_vf(fname,specification.size) -- not cached, fast enough - if vfdata then - local chars = tfmdata.characters - for k,v in next, vfdata.characters do - chars[k].commands = v.commands - end - tfmdata.type = 'virtual' - tfmdata.fonts = vfdata.fonts - end - end - end - tfm.enhance(tfmdata,specification) - end - elseif trace_defining then - logs.report("define font","loading tfm with name %s fails",specification.name) - end - return tfmdata -end - ---[[ldx-- -<p>We need to normalize the scale factor (in scaled points). This has to -do with the fact that <l n='tex'/> uses a negative multiple of 1000 as -a signal for a font scaled based on the design size.</p> ---ldx]]-- - -local factors = { - pt = 65536.0, - bp = 65781.8, -} - -function tfm.setfactor(f) - tfm.factor = factors[f or 'pt'] or factors.pt -end - -tfm.setfactor() - -function tfm.scaled(scaledpoints, designsize) -- handles designsize in sp as well - if scaledpoints < 0 then - if designsize then - if designsize > tfm.factor then -- or just 1000 / when? mp? - return (- scaledpoints/1000) * designsize -- sp's - else - return (- scaledpoints/1000) * designsize * tfm.factor - end - else - return (- scaledpoints/1000) * 10 * tfm.factor - end - else - return scaledpoints - end -end - ---[[ldx-- -<p>Before a font is passed to <l n='tex'/> we scale it. Here we also need -to scale virtual characters.</p> ---ldx]]-- - -function tfm.get_virtual_id(tfmdata) - -- since we don't know the id yet, we use 0 as signal - if not tfmdata.fonts then - tfmdata.type = "virtual" - tfmdata.fonts = { { id = 0 } } - return 1 - else - tfmdata.fonts[#tfmdata.fonts+1] = { id = 0 } - return #tfmdata.fonts - end -end - -function tfm.check_virtual_id(tfmdata, id) - if tfmdata and tfmdata.type == "virtual" then - if not tfmdata.fonts or #tfmdata.fonts == 0 then - tfmdata.type, tfmdata.fonts = "real", nil - else - local vfonts = tfmdata.fonts - for f=1,#vfonts do - local fnt = vfonts[f] - if fnt.id and fnt.id == 0 then - fnt.id = id - end - end - end - end -end - ---[[ldx-- -<p>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.)</p> ---ldx]]-- - -fonts.trace_scaling = false - --- the following hack costs a bit of runtime but safes memory --- --- basekerns are scaled and will be hashed by table id --- sharedkerns are unscaled and are be hashed by concatenated indexes - ---~ function tfm.check_base_kerns(tfmdata) ---~ if tfm.share_base_kerns then ---~ local sharedkerns = tfmdata.sharedkerns ---~ if sharedkerns then ---~ local basekerns = { } ---~ tfmdata.basekerns = basekerns ---~ return sharedkerns, basekerns ---~ end ---~ end ---~ return nil, nil ---~ end - ---~ function tfm.prepare_base_kerns(tfmdata) ---~ if tfm.share_base_kerns and not tfmdata.sharedkerns then ---~ local sharedkerns = { } ---~ tfmdata.sharedkerns = sharedkerns ---~ for u, chr in next, tfmdata.characters do ---~ local kerns = chr.kerns ---~ if kerns then ---~ local hash = concat(sortedkeys(kerns), " ") ---~ local base = sharedkerns[hash] ---~ if not base then ---~ sharedkerns[hash] = kerns ---~ else ---~ chr.kerns = base ---~ end ---~ end ---~ end ---~ end ---~ end - --- we can have cache scaled characters when we are in node mode and don't have --- protruding and expansion: hash == fullname @ size @ protruding @ expansion --- but in practice (except from mk) the otf hash will be enough already so it --- makes no sense to mess up the code now - -local charactercache = { } - --- The scaler is only used for otf and afm and virtual fonts. If --- a virtual font has italic correction make sure to set the --- has_italic flag. Some more flags will be added in the future. - -function tfm.calculate_scale(tfmtable, scaledpoints, relativeid) - if scaledpoints < 0 then - scaledpoints = (- scaledpoints/1000) * tfmtable.designsize -- already in sp - end - local units = tfmtable.units or 1000 - local delta = scaledpoints/units -- brr, some open type fonts have 2048 - return scaledpoints, delta, units -end - -function tfm.do_scale(tfmtable, scaledpoints, relativeid) - -- tfm.prepare_base_kerns(tfmtable) -- optimalization - local t = { } -- the new table - local scaledpoints, delta, units = tfm.calculate_scale(tfmtable, scaledpoints, relativeid) - t.units_per_em = units or 1000 - local hdelta, vdelta = delta, delta - -- unicoded unique descriptions shared cidinfo characters changed parameters indices - for k,v in next, tfmtable do - if type(v) == "table" then - -- print(k) - else - t[k] = v - end - end - local extend_factor = tfmtable.extend_factor or 0 - if extend_factor ~= 0 and extend_factor ~= 1 then - hdelta = hdelta * extend_factor - t.extend = extend_factor * 1000 - else - t.extend = 1000 - end - local slant_factor = tfmtable.slant_factor or 0 - if slant_factor ~= 0 then - t.slant = slant_factor * 1000 - else - t.slant = 0 - end - -- status - local isvirtual = tfmtable.type == "virtual" or tfmtable.virtualized - local hasmath = (tfmtable.math_parameters ~= nil and next(tfmtable.math_parameters) ~= nil) or (tfmtable.MathConstants ~= nil and next(tfmtable.MathConstants) ~= nil) - local nodemode = tfmtable.mode == "node" - local hasquality = tfmtable.auto_expand or tfmtable.auto_protrude - local hasitalic = tfmtable.has_italic - -- - t.parameters = { } - t.characters = { } - t.MathConstants = { } - -- fast access - local descriptions = tfmtable.descriptions or { } - t.unicodes = tfmtable.unicodes - t.indices = tfmtable.indices - t.marks = tfmtable.marks -t.goodies = tfmtable.goodies -t.colorscheme = tfmtable.colorscheme ---~ t.embedding = tfmtable.embedding - t.descriptions = descriptions - if tfmtable.fonts then - t.fonts = table.fastcopy(tfmtable.fonts) -- hm also at the end - end - local tp = t.parameters - local mp = t.math_parameters - local tfmp = tfmtable.parameters -- let's check for indexes - -- - tp.slant = (tfmp.slant or tfmp[1] or 0) - tp.space = (tfmp.space or tfmp[2] or 0)*hdelta - tp.space_stretch = (tfmp.space_stretch or tfmp[3] or 0)*hdelta - tp.space_shrink = (tfmp.space_shrink or tfmp[4] or 0)*hdelta - tp.x_height = (tfmp.x_height or tfmp[5] or 0)*vdelta - tp.quad = (tfmp.quad or tfmp[6] or 0)*hdelta - tp.extra_space = (tfmp.extra_space or tfmp[7] or 0)*hdelta - local protrusionfactor = (tp.quad ~= 0 and 1000/tp.quad) or 0 - local tc = t.characters - local characters = tfmtable.characters - local nameneeded = not tfmtable.shared.otfdata --hack - local changed = tfmtable.changed or { } -- for base mode - local ischanged = not table.is_empty(changed) - local indices = tfmtable.indices - local luatex = tfmtable.luatex - local tounicode = luatex and luatex.tounicode - local defaultwidth = luatex and luatex.defaultwidth or 0 - local defaultheight = luatex and luatex.defaultheight or 0 - local defaultdepth = luatex and luatex.defaultdepth or 0 - -- experimental, sharing kerns (unscaled and scaled) saves memory - -- local sharedkerns, basekerns = tfm.check_base_kerns(tfmtable) - -- loop over descriptions (afm and otf have descriptions, tfm not) - -- there is no need (yet) to assign a value to chr.tonunicode - local scaledwidth = defaultwidth * hdelta - local scaledheight = defaultheight * vdelta - local scaleddepth = defaultdepth * vdelta - local stackmath = tfmtable.ignore_stack_math ~= true - local private = fonts.private - local sharedkerns = { } - for k,v in next, characters do - local chr, description, index - if ischanged then - -- basemode hack - local c = changed[k] - if c then - description = descriptions[c] or v - v = characters[c] or v - index = (indices and indices[c]) or c - else - description = descriptions[k] or v - index = (indices and indices[k]) or k - end - else - description = descriptions[k] or v - index = (indices and indices[k]) or k - 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 nameneeded then - chr = { - name = description.name, - index = index, - height = height, - depth = depth, - width = width, - } - else - chr = { - 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 nameneeded then - chr = { - name = description.name, - index = index, - height = height, - width = width, - } - else - chr = { - index = index, - height = height, - width = width, - } - end - end - -- if trace_scaling then - -- logs.report("define font","t=%s, u=%s, i=%s, n=%s c=%s",k,chr.tounicode or k,description.index,description.name or '-',description.class or '-') - -- end - if tounicode then - local tu = tounicode[index] -- nb: index! - if tu then - chr.tounicode = tu - end - end - if hasquality then - -- we could move these calculations elsewhere (saves calculations) - local ve = v.expansion_factor - if ve then - chr.expansion_factor = ve*1000 -- expansionfactor, hm, can happen elsewhere - end - local vl = v.left_protruding - if vl then - chr.left_protruding = protrusionfactor*width*vl - end - local vr = v.right_protruding - if vr then - chr.right_protruding = protrusionfactor*width*vr - end - end - -- todo: hasitalic - if hasitalic then - local vi = description.italic or v.italic - if vi and vi ~= 0 then - chr.italic = vi*hdelta - end - end - -- to be tested - if hasmath then - -- todo, just operate on descriptions.math - local vn = v.next - if vn then - chr.next = vn - else - local vv = v.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 - --~ local ic = v.vert_italic_correction - --~ if ic then - --~ chr.italic = ic * hdelta - --~ print(format("0x%05X -> %s",k,chr.italic)) - --~ end - else - local hv = v.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 vt = description.top_accent - if vt then - chr.top_accent = vdelta*vt - end - if stackmath then - local mk = v.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 -- singular - end - end - end - if not nodemode then - local vk = v.kerns - if vk then - --~ if sharedkerns then - --~ local base = basekerns[vk] -- hashed by table id, not content - --~ if not base then - --~ base = {} - --~ for k,v in next, vk do base[k] = v*hdelta end - --~ basekerns[vk] = base - --~ end - --~ chr.kerns = base - --~ else - --~ local tt = {} - --~ for k,v in next, vk do tt[k] = v*hdelta end - --~ chr.kerns = tt - --~ end - 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 = v.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 = v.commands - if vc then - -- we assume non scaled commands here - 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[#tt+1] = { key, ivc[2]*hdelta } - elseif key == "down" then - tt[#tt+1] = { key, ivc[2]*vdelta } - else -- not comment - tt[#tt+1] = ivc -- shared since in cache and untouched - end - end - chr.commands = tt - else - chr.commands = vc - end - end - end - tc[k] = chr - end - -- t.encodingbytes, t.filename, t.fullname, t.name: elsewhere - t.size = scaledpoints - t.factor = delta - t.hfactor = hdelta - t.vfactor = vdelta - if t.fonts then - t.fonts = table.fastcopy(t.fonts) -- maybe we virtualize more afterwards - end - if hasmath then - -- mathematics.extras.copy(t) -- can be done elsewhere if needed - local ma = tfm.mathactions - for i=1,#ma do - ma[i](t,tfmtable,delta,hdelta,vdelta) -- what delta? - end - end - -- needed for \high cum suis - local tpx = tp.x_height - if hasmath then - if not tp[13] then tp[13] = .86*tpx end -- mathsupdisplay - if not tp[14] then tp[14] = .86*tpx end -- mathsupnormal - if not tp[15] then tp[15] = .86*tpx end -- mathsupcramped - if not tp[16] then tp[16] = .48*tpx end -- mathsubnormal - if not tp[17] then tp[17] = .48*tpx end -- mathsubcombined - if not tp[22] then tp[22] = 0 end -- mathaxisheight - if t.MathConstants then t.MathConstants.AccentBaseHeight = nil end -- safeguard - end - t.tounicode = 1 - t.cidinfo = tfmtable.cidinfo - -- we have t.name=metricfile and t.fullname=RealName and t.filename=diskfilename - -- when collapsing fonts, luatex looks as both t.name and t.fullname as ttc files - -- can have multiple subfonts - if hasmath then - if trace_defining then - logs.report("define font","math enabled for: name '%s', fullname: '%s', filename: '%s'",t.name or "noname",t.fullname or "nofullname",t.filename or "nofilename") - end - else - if trace_defining then - logs.report("define font","math disabled for: name '%s', fullname: '%s', filename: '%s'",t.name or "noname",t.fullname or "nofullname",t.filename or "nofilename") - end - t.nomath, t.MathConstants = true, nil - end - if not t.psname then - -- name used in pdf file as well as for selecting subfont in ttc/dfont - t.psname = t.fontname or (t.fullname and fonts.names.cleanname(t.fullname)) - end - if trace_defining then - logs.report("define font","used for accesing subfont: '%s'",t.psname or "nopsname") - logs.report("define font","used for subsetting: '%s'",t.fontname or "nofontname") - end ---~ print(t.fontname,table.serialize(t.MathConstants)) - return t, delta -end - ---[[ldx-- -<p>The reason why the scaler is split, is that for a while we experimented -with a helper function. However, in practice the <l n='api'/> calls are too slow to -make this profitable and the <l n='lua'/> based variant was just faster. A days -wasted day but an experience richer.</p> ---ldx]]-- - -tfm.auto_cleanup = true - -local lastfont = nil - --- 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 --- --- 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 tfm.cleanup_table(tfmdata) -- we need a cleanup callback, now we miss the last one - if tfm.auto_cleanup then -- ok, we can hook this into everyshipout or so ... todo - if tfmdata.type == 'virtual' or tfmdata.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 - else - -- for k, v in next, tfmdata.characters do - -- if v.kerns then v.kerns = nil end - -- end - end - end -end - -function tfm.cleanup(tfmdata) -- we need a cleanup callback, now we miss the last one -end - -function tfm.scale(tfmtable, scaledpoints, relativeid) - local t, factor = tfm.do_scale(tfmtable, scaledpoints, relativeid) - t.factor = factor - t.ascender = factor*(tfmtable.ascender or 0) - t.descender = factor*(tfmtable.descender or 0) - t.shared = tfmtable.shared or { } - t.unique = table.fastcopy(tfmtable.unique or {}) ---~ print("scaling", t.name, t.factor) -- , tfm.hash_features(tfmtable.specification)) - tfm.cleanup(t) - return t -end - ---[[ldx-- -<p>Analyzers run per script and/or language and are needed in order to -process features right.</p> ---ldx]]-- - -fonts.analyzers = fonts.analyzers or { } -fonts.analyzers.aux = fonts.analyzers.aux or { } -fonts.analyzers.methods = fonts.analyzers.methods or { } -fonts.analyzers.initializers = fonts.analyzers.initializers or { } - --- todo: analyzers per script/lang, cross font, so we need an font id hash -> script --- e.g. latin -> hyphenate, arab -> 1/2/3 analyze - --- an example analyzer (should move to font-ota.lua) - -local state = attributes.private('state') - -function fonts.analyzers.aux.setstate(head,font) - 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 and current.font == font then - local d = descriptions[current.char] - if d then - if d.class == "mark" then - done = true - set_attribute(current,state,5) -- mark - elseif n == 0 then - first, last, n = current, current, 1 - set_attribute(current,state,1) -- init - else - last, n = current, n+1 - set_attribute(current,state,2) -- medi - end - else -- finish - if first and first == last then - set_attribute(last,state,4) -- isol - elseif last then - set_attribute(last,state,3) -- fina - end - first, last, n = nil, nil, 0 - end - elseif id == disc then - -- always in the middle - set_attribute(current,state,2) -- midi - last = current - else -- finish - if first and first == last then - set_attribute(last,state,4) -- isol - elseif last then - set_attribute(last,state,3) -- fina - end - first, last, n = nil, nil, 0 - end - current = current.next - end - if first and first == last then - set_attribute(last,state,4) -- isol - elseif last then - set_attribute(last,state,3) -- fina - end - return head, done -end - -function tfm.replacements(tfm,value) - -- tfm.characters[0x0022] = table.fastcopy(tfm.characters[0x201D]) - -- tfm.characters[0x0027] = table.fastcopy(tfm.characters[0x2019]) - -- tfm.characters[0x0060] = table.fastcopy(tfm.characters[0x2018]) - -- tfm.characters[0x0022] = tfm.characters[0x201D] - tfm.characters[0x0027] = tfm.characters[0x2019] - -- tfm.characters[0x0060] = tfm.characters[0x2018] -end - --- status info - -statistics.register("fonts load time", function() - return statistics.elapsedseconds(fonts) -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 lpegmatch = lpeg.match - -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) - -fonts = fonts or { } -fonts.cid = fonts.cid or { } -fonts.cid.map = fonts.cid.map or { } -fonts.cid.max = fonts.cid.max or 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 = lpeg.C(lpeg.R("09","af","AF")^1) -local space = lpeg.S(" \n\r\t") -local spaces = space^0 -local period = lpeg.P(".") -local periods = period * period -local name = lpeg.P("/") * lpeg.C((1-space)^1) - -local unicodes, names = { }, { } - -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 = lpeg.P { "start", - start = number * spaces * number * lpeg.V("series"), - series = (spaces * (lpeg.V("one") + lpeg.V("range") + lpeg.V("named")) )^1, - one = (number * spaces * number) / do_one, - range = (number * periods * number * spaces * number) / do_range, - named = (number * spaces * name) / do_name -} - -function fonts.cid.load(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 - } - else - return nil - end -end - -local template = "%s-%s-%s.cidmap" - - -local function locate(registry,ordering,supplement) - local filename = format(template,registry,ordering,supplement) - local hashname = lower(filename) - local cidmap = fonts.cid.map[hashname] - if not cidmap then - if trace_loading then - logs.report("load otf","checking cidmap, registry: %s, ordering: %s, supplement: %s, filename: %s",registry,ordering,supplement,filename) - end - local fullname = resolvers.find_file(filename,'cid') or "" - if fullname ~= "" then - cidmap = fonts.cid.load(fullname) - if cidmap then - if trace_loading then - logs.report("load otf","using cidmap file %s",filename) - end - fonts.cid.map[hashname] = cidmap - cidmap.usedname = file.basename(filename) - return cidmap - end - end - end - return cidmap -end - -function fonts.cid.getmap(registry,ordering,supplement) - -- cf Arthur R. we can safely scan upwards since cids are downward compatible - local supplement = tonumber(supplement) - if trace_loading then - logs.report("load otf","needed cidmap, registry: %s, ordering: %s, supplement: %s",registry,ordering,supplement) - end - local cidmap = locate(registry,ordering,supplement) - if not cidmap then - local cidnum = nil - -- next highest (alternatively we could start high) - if supplement < fonts.cid.max then - for supplement=supplement+1,fonts.cid.max do - local c = locate(registry,ordering,supplement) - if c then - cidmap, cidnum = c, supplement - break - end - end - end - -- next lowest (least worse fit) - if not cidmap and supplement > 0 then - for supplement=supplement-1,0,-1 do - local c = locate(registry,ordering,supplement) - if c then - cidmap, cidnum = c, supplement - break - end - end - end - -- prevent further lookups - if cidmap and cidnum > 0 then - for s=0,cidnum-1 do - filename = format(template,registry,ordering,s) - if not fonts.cid.map[filename] then - fonts.cid.map[filename] = cidmap -- copy of ref - end - end - end - end - return cidmap -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-otf.lua (tables)", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local type, next, tonumber, tostring = type, next, tonumber, tostring -local gsub, lower = string.gsub, string.lower - -fonts = fonts or { } -fonts.otf = fonts.otf or { } - -local otf = fonts.otf - -otf.tables = otf.tables or { } -otf.meanings = otf.meanings or { } - -otf.tables.scripts = { - ['dflt'] = 'Default', - - ['arab'] = 'Arabic', - ['armn'] = 'Armenian', - ['bali'] = 'Balinese', - ['beng'] = 'Bengali', - ['bopo'] = 'Bopomofo', - ['brai'] = 'Braille', - ['bugi'] = 'Buginese', - ['buhd'] = 'Buhid', - ['byzm'] = 'Byzantine Music', - ['cans'] = 'Canadian Syllabics', - ['cher'] = 'Cherokee', - ['copt'] = 'Coptic', - ['cprt'] = 'Cypriot Syllabary', - ['cyrl'] = 'Cyrillic', - ['deva'] = 'Devanagari', - ['dsrt'] = 'Deseret', - ['ethi'] = 'Ethiopic', - ['geor'] = 'Georgian', - ['glag'] = 'Glagolitic', - ['goth'] = 'Gothic', - ['grek'] = 'Greek', - ['gujr'] = 'Gujarati', - ['guru'] = 'Gurmukhi', - ['hang'] = 'Hangul', - ['hani'] = 'CJK Ideographic', - ['hano'] = 'Hanunoo', - ['hebr'] = 'Hebrew', - ['ital'] = 'Old Italic', - ['jamo'] = 'Hangul Jamo', - ['java'] = 'Javanese', - ['kana'] = 'Hiragana and Katakana', - ['khar'] = 'Kharosthi', - ['khmr'] = 'Khmer', - ['knda'] = 'Kannada', - ['lao' ] = 'Lao', - ['latn'] = 'Latin', - ['limb'] = 'Limbu', - ['linb'] = 'Linear B', - ['math'] = 'Mathematical Alphanumeric Symbols', - ['mlym'] = 'Malayalam', - ['mong'] = 'Mongolian', - ['musc'] = 'Musical Symbols', - ['mymr'] = 'Myanmar', - ['nko' ] = "N'ko", - ['ogam'] = 'Ogham', - ['orya'] = 'Oriya', - ['osma'] = 'Osmanya', - ['phag'] = 'Phags-pa', - ['phnx'] = 'Phoenician', - ['runr'] = 'Runic', - ['shaw'] = 'Shavian', - ['sinh'] = 'Sinhala', - ['sylo'] = 'Syloti Nagri', - ['syrc'] = 'Syriac', - ['tagb'] = 'Tagbanwa', - ['tale'] = 'Tai Le', - ['talu'] = 'Tai Lu', - ['taml'] = 'Tamil', - ['telu'] = 'Telugu', - ['tfng'] = 'Tifinagh', - ['tglg'] = 'Tagalog', - ['thaa'] = 'Thaana', - ['thai'] = 'Thai', - ['tibt'] = 'Tibetan', - ['ugar'] = 'Ugaritic Cuneiform', - ['xpeo'] = 'Old Persian Cuneiform', - ['xsux'] = 'Sumero-Akkadian Cuneiform', - ['yi' ] = 'Yi', -} - -otf.tables.languages = { - ['dflt'] = 'Default', - - ['aba'] = 'Abaza', - ['abk'] = 'Abkhazian', - ['ady'] = 'Adyghe', - ['afk'] = 'Afrikaans', - ['afr'] = 'Afar', - ['agw'] = 'Agaw', - ['als'] = 'Alsatian', - ['alt'] = 'Altai', - ['amh'] = 'Amharic', - ['ara'] = 'Arabic', - ['ari'] = 'Aari', - ['ark'] = 'Arakanese', - ['asm'] = 'Assamese', - ['ath'] = 'Athapaskan', - ['avr'] = 'Avar', - ['awa'] = 'Awadhi', - ['aym'] = 'Aymara', - ['aze'] = 'Azeri', - ['bad'] = 'Badaga', - ['bag'] = 'Baghelkhandi', - ['bal'] = 'Balkar', - ['bau'] = 'Baule', - ['bbr'] = 'Berber', - ['bch'] = 'Bench', - ['bcr'] = 'Bible Cree', - ['bel'] = 'Belarussian', - ['bem'] = 'Bemba', - ['ben'] = 'Bengali', - ['bgr'] = 'Bulgarian', - ['bhi'] = 'Bhili', - ['bho'] = 'Bhojpuri', - ['bik'] = 'Bikol', - ['bil'] = 'Bilen', - ['bkf'] = 'Blackfoot', - ['bli'] = 'Balochi', - ['bln'] = 'Balante', - ['blt'] = 'Balti', - ['bmb'] = 'Bambara', - ['bml'] = 'Bamileke', - ['bos'] = 'Bosnian', - ['bre'] = 'Breton', - ['brh'] = 'Brahui', - ['bri'] = 'Braj Bhasha', - ['brm'] = 'Burmese', - ['bsh'] = 'Bashkir', - ['bti'] = 'Beti', - ['cat'] = 'Catalan', - ['ceb'] = 'Cebuano', - ['che'] = 'Chechen', - ['chg'] = 'Chaha Gurage', - ['chh'] = 'Chattisgarhi', - ['chi'] = 'Chichewa', - ['chk'] = 'Chukchi', - ['chp'] = 'Chipewyan', - ['chr'] = 'Cherokee', - ['chu'] = 'Chuvash', - ['cmr'] = 'Comorian', - ['cop'] = 'Coptic', - ['cos'] = 'Corsican', - ['cre'] = 'Cree', - ['crr'] = 'Carrier', - ['crt'] = 'Crimean Tatar', - ['csl'] = 'Church Slavonic', - ['csy'] = 'Czech', - ['dan'] = 'Danish', - ['dar'] = 'Dargwa', - ['dcr'] = 'Woods Cree', - ['deu'] = 'German', - ['dgr'] = 'Dogri', - ['div'] = 'Divehi', - ['djr'] = 'Djerma', - ['dng'] = 'Dangme', - ['dnk'] = 'Dinka', - ['dri'] = 'Dari', - ['dun'] = 'Dungan', - ['dzn'] = 'Dzongkha', - ['ebi'] = 'Ebira', - ['ecr'] = 'Eastern Cree', - ['edo'] = 'Edo', - ['efi'] = 'Efik', - ['ell'] = 'Greek', - ['eng'] = 'English', - ['erz'] = 'Erzya', - ['esp'] = 'Spanish', - ['eti'] = 'Estonian', - ['euq'] = 'Basque', - ['evk'] = 'Evenki', - ['evn'] = 'Even', - ['ewe'] = 'Ewe', - ['fan'] = 'French Antillean', - ['far'] = 'Farsi', - ['fin'] = 'Finnish', - ['fji'] = 'Fijian', - ['fle'] = 'Flemish', - ['fne'] = 'Forest Nenets', - ['fon'] = 'Fon', - ['fos'] = 'Faroese', - ['fra'] = 'French', - ['fri'] = 'Frisian', - ['frl'] = 'Friulian', - ['fta'] = 'Futa', - ['ful'] = 'Fulani', - ['gad'] = 'Ga', - ['gae'] = 'Gaelic', - ['gag'] = 'Gagauz', - ['gal'] = 'Galician', - ['gar'] = 'Garshuni', - ['gaw'] = 'Garhwali', - ['gez'] = "Ge'ez", - ['gil'] = 'Gilyak', - ['gmz'] = 'Gumuz', - ['gon'] = 'Gondi', - ['grn'] = 'Greenlandic', - ['gro'] = 'Garo', - ['gua'] = 'Guarani', - ['guj'] = 'Gujarati', - ['hai'] = 'Haitian', - ['hal'] = 'Halam', - ['har'] = 'Harauti', - ['hau'] = 'Hausa', - ['haw'] = 'Hawaiin', - ['hbn'] = 'Hammer-Banna', - ['hil'] = 'Hiligaynon', - ['hin'] = 'Hindi', - ['hma'] = 'High Mari', - ['hnd'] = 'Hindko', - ['ho'] = 'Ho', - ['hri'] = 'Harari', - ['hrv'] = 'Croatian', - ['hun'] = 'Hungarian', - ['hye'] = 'Armenian', - ['ibo'] = 'Igbo', - ['ijo'] = 'Ijo', - ['ilo'] = 'Ilokano', - ['ind'] = 'Indonesian', - ['ing'] = 'Ingush', - ['inu'] = 'Inuktitut', - ['iri'] = 'Irish', - ['irt'] = 'Irish Traditional', - ['isl'] = 'Icelandic', - ['ism'] = 'Inari Sami', - ['ita'] = 'Italian', - ['iwr'] = 'Hebrew', - ['jan'] = 'Japanese', - ['jav'] = 'Javanese', - ['jii'] = 'Yiddish', - ['jud'] = 'Judezmo', - ['jul'] = 'Jula', - ['kab'] = 'Kabardian', - ['kac'] = 'Kachchi', - ['kal'] = 'Kalenjin', - ['kan'] = 'Kannada', - ['kar'] = 'Karachay', - ['kat'] = 'Georgian', - ['kaz'] = 'Kazakh', - ['keb'] = 'Kebena', - ['kge'] = 'Khutsuri Georgian', - ['kha'] = 'Khakass', - ['khk'] = 'Khanty-Kazim', - ['khm'] = 'Khmer', - ['khs'] = 'Khanty-Shurishkar', - ['khv'] = 'Khanty-Vakhi', - ['khw'] = 'Khowar', - ['kik'] = 'Kikuyu', - ['kir'] = 'Kirghiz', - ['kis'] = 'Kisii', - ['kkn'] = 'Kokni', - ['klm'] = 'Kalmyk', - ['kmb'] = 'Kamba', - ['kmn'] = 'Kumaoni', - ['kmo'] = 'Komo', - ['kms'] = 'Komso', - ['knr'] = 'Kanuri', - ['kod'] = 'Kodagu', - ['koh'] = 'Korean Old Hangul', - ['kok'] = 'Konkani', - ['kon'] = 'Kikongo', - ['kop'] = 'Komi-Permyak', - ['kor'] = 'Korean', - ['koz'] = 'Komi-Zyrian', - ['kpl'] = 'Kpelle', - ['kri'] = 'Krio', - ['krk'] = 'Karakalpak', - ['krl'] = 'Karelian', - ['krm'] = 'Karaim', - ['krn'] = 'Karen', - ['krt'] = 'Koorete', - ['ksh'] = 'Kashmiri', - ['ksi'] = 'Khasi', - ['ksm'] = 'Kildin Sami', - ['kui'] = 'Kui', - ['kul'] = 'Kulvi', - ['kum'] = 'Kumyk', - ['kur'] = 'Kurdish', - ['kuu'] = 'Kurukh', - ['kuy'] = 'Kuy', - ['kyk'] = 'Koryak', - ['lad'] = 'Ladin', - ['lah'] = 'Lahuli', - ['lak'] = 'Lak', - ['lam'] = 'Lambani', - ['lao'] = 'Lao', - ['lat'] = 'Latin', - ['laz'] = 'Laz', - ['lcr'] = 'L-Cree', - ['ldk'] = 'Ladakhi', - ['lez'] = 'Lezgi', - ['lin'] = 'Lingala', - ['lma'] = 'Low Mari', - ['lmb'] = 'Limbu', - ['lmw'] = 'Lomwe', - ['lsb'] = 'Lower Sorbian', - ['lsm'] = 'Lule Sami', - ['lth'] = 'Lithuanian', - ['ltz'] = 'Luxembourgish', - ['lub'] = 'Luba', - ['lug'] = 'Luganda', - ['luh'] = 'Luhya', - ['luo'] = 'Luo', - ['lvi'] = 'Latvian', - ['maj'] = 'Majang', - ['mak'] = 'Makua', - ['mal'] = 'Malayalam Traditional', - ['man'] = 'Mansi', - ['map'] = 'Mapudungun', - ['mar'] = 'Marathi', - ['maw'] = 'Marwari', - ['mbn'] = 'Mbundu', - ['mch'] = 'Manchu', - ['mcr'] = 'Moose Cree', - ['mde'] = 'Mende', - ['men'] = "Me'en", - ['miz'] = 'Mizo', - ['mkd'] = 'Macedonian', - ['mle'] = 'Male', - ['mlg'] = 'Malagasy', - ['mln'] = 'Malinke', - ['mlr'] = 'Malayalam Reformed', - ['mly'] = 'Malay', - ['mnd'] = 'Mandinka', - ['mng'] = 'Mongolian', - ['mni'] = 'Manipuri', - ['mnk'] = 'Maninka', - ['mnx'] = 'Manx Gaelic', - ['moh'] = 'Mohawk', - ['mok'] = 'Moksha', - ['mol'] = 'Moldavian', - ['mon'] = 'Mon', - ['mor'] = 'Moroccan', - ['mri'] = 'Maori', - ['mth'] = 'Maithili', - ['mts'] = 'Maltese', - ['mun'] = 'Mundari', - ['nag'] = 'Naga-Assamese', - ['nan'] = 'Nanai', - ['nas'] = 'Naskapi', - ['ncr'] = 'N-Cree', - ['ndb'] = 'Ndebele', - ['ndg'] = 'Ndonga', - ['nep'] = 'Nepali', - ['new'] = 'Newari', - ['ngr'] = 'Nagari', - ['nhc'] = 'Norway House Cree', - ['nis'] = 'Nisi', - ['niu'] = 'Niuean', - ['nkl'] = 'Nkole', - ['nko'] = "N'ko", - ['nld'] = 'Dutch', - ['nog'] = 'Nogai', - ['nor'] = 'Norwegian', - ['nsm'] = 'Northern Sami', - ['nta'] = 'Northern Tai', - ['nto'] = 'Esperanto', - ['nyn'] = 'Nynorsk', - ['oci'] = 'Occitan', - ['ocr'] = 'Oji-Cree', - ['ojb'] = 'Ojibway', - ['ori'] = 'Oriya', - ['oro'] = 'Oromo', - ['oss'] = 'Ossetian', - ['paa'] = 'Palestinian Aramaic', - ['pal'] = 'Pali', - ['pan'] = 'Punjabi', - ['pap'] = 'Palpa', - ['pas'] = 'Pashto', - ['pgr'] = 'Polytonic Greek', - ['pil'] = 'Pilipino', - ['plg'] = 'Palaung', - ['plk'] = 'Polish', - ['pro'] = 'Provencal', - ['ptg'] = 'Portuguese', - ['qin'] = 'Chin', - ['raj'] = 'Rajasthani', - ['rbu'] = 'Russian Buriat', - ['rcr'] = 'R-Cree', - ['ria'] = 'Riang', - ['rms'] = 'Rhaeto-Romanic', - ['rom'] = 'Romanian', - ['roy'] = 'Romany', - ['rsy'] = 'Rusyn', - ['rua'] = 'Ruanda', - ['rus'] = 'Russian', - ['sad'] = 'Sadri', - ['san'] = 'Sanskrit', - ['sat'] = 'Santali', - ['say'] = 'Sayisi', - ['sek'] = 'Sekota', - ['sel'] = 'Selkup', - ['sgo'] = 'Sango', - ['shn'] = 'Shan', - ['sib'] = 'Sibe', - ['sid'] = 'Sidamo', - ['sig'] = 'Silte Gurage', - ['sks'] = 'Skolt Sami', - ['sky'] = 'Slovak', - ['sla'] = 'Slavey', - ['slv'] = 'Slovenian', - ['sml'] = 'Somali', - ['smo'] = 'Samoan', - ['sna'] = 'Sena', - ['snd'] = 'Sindhi', - ['snh'] = 'Sinhalese', - ['snk'] = 'Soninke', - ['sog'] = 'Sodo Gurage', - ['sot'] = 'Sotho', - ['sqi'] = 'Albanian', - ['srb'] = 'Serbian', - ['srk'] = 'Saraiki', - ['srr'] = 'Serer', - ['ssl'] = 'South Slavey', - ['ssm'] = 'Southern Sami', - ['sur'] = 'Suri', - ['sva'] = 'Svan', - ['sve'] = 'Swedish', - ['swa'] = 'Swadaya Aramaic', - ['swk'] = 'Swahili', - ['swz'] = 'Swazi', - ['sxt'] = 'Sutu', - ['syr'] = 'Syriac', - ['tab'] = 'Tabasaran', - ['taj'] = 'Tajiki', - ['tam'] = 'Tamil', - ['tat'] = 'Tatar', - ['tcr'] = 'TH-Cree', - ['tel'] = 'Telugu', - ['tgn'] = 'Tongan', - ['tgr'] = 'Tigre', - ['tgy'] = 'Tigrinya', - ['tha'] = 'Thai', - ['tht'] = 'Tahitian', - ['tib'] = 'Tibetan', - ['tkm'] = 'Turkmen', - ['tmn'] = 'Temne', - ['tna'] = 'Tswana', - ['tne'] = 'Tundra Nenets', - ['tng'] = 'Tonga', - ['tod'] = 'Todo', - ['trk'] = 'Turkish', - ['tsg'] = 'Tsonga', - ['tua'] = 'Turoyo Aramaic', - ['tul'] = 'Tulu', - ['tuv'] = 'Tuvin', - ['twi'] = 'Twi', - ['udm'] = 'Udmurt', - ['ukr'] = 'Ukrainian', - ['urd'] = 'Urdu', - ['usb'] = 'Upper Sorbian', - ['uyg'] = 'Uyghur', - ['uzb'] = 'Uzbek', - ['ven'] = 'Venda', - ['vit'] = 'Vietnamese', - ['wa' ] = 'Wa', - ['wag'] = 'Wagdi', - ['wcr'] = 'West-Cree', - ['wel'] = 'Welsh', - ['wlf'] = 'Wolof', - ['xbd'] = 'Tai Lue', - ['xhs'] = 'Xhosa', - ['yak'] = 'Yakut', - ['yba'] = 'Yoruba', - ['ycr'] = 'Y-Cree', - ['yic'] = 'Yi Classic', - ['yim'] = 'Yi Modern', - ['zhh'] = 'Chinese Hong Kong', - ['zhp'] = 'Chinese Phonetic', - ['zhs'] = 'Chinese Simplified', - ['zht'] = 'Chinese Traditional', - ['znd'] = 'Zande', - ['zul'] = 'Zulu' -} - -otf.tables.features = { - ['aalt'] = 'Access All Alternates', - ['abvf'] = 'Above-Base Forms', - ['abvm'] = 'Above-Base Mark Positioning', - ['abvs'] = 'Above-Base Substitutions', - ['afrc'] = 'Alternative Fractions', - ['akhn'] = 'Akhands', - ['blwf'] = 'Below-Base Forms', - ['blwm'] = 'Below-Base Mark Positioning', - ['blws'] = 'Below-Base Substitutions', - ['c2pc'] = 'Petite Capitals From Capitals', - ['c2sc'] = 'Small Capitals From Capitals', - ['calt'] = 'Contextual Alternates', - ['case'] = 'Case-Sensitive Forms', - ['ccmp'] = 'Glyph Composition/Decomposition', - ['cjct'] = 'Conjunct Forms', - ['clig'] = 'Contextual Ligatures', - ['cpsp'] = 'Capital Spacing', - ['cswh'] = 'Contextual Swash', - ['curs'] = 'Cursive Positioning', - ['dflt'] = 'Default Processing', - ['dist'] = 'Distances', - ['dlig'] = 'Discretionary Ligatures', - ['dnom'] = 'Denominators', - ['dtls'] = 'Dotless Forms', -- math - ['expt'] = 'Expert Forms', - ['falt'] = 'Final glyph Alternates', - ['fin2'] = 'Terminal Forms #2', - ['fin3'] = 'Terminal Forms #3', - ['fina'] = 'Terminal Forms', - ['flac'] = 'Flattened Accents Over Capitals', -- math - ['frac'] = 'Fractions', - ['fwid'] = 'Full Width', - ['half'] = 'Half Forms', - ['haln'] = 'Halant Forms', - ['halt'] = 'Alternate Half Width', - ['hist'] = 'Historical Forms', - ['hkna'] = 'Horizontal Kana Alternates', - ['hlig'] = 'Historical Ligatures', - ['hngl'] = 'Hangul', - ['hojo'] = 'Hojo Kanji Forms', - ['hwid'] = 'Half Width', - ['init'] = 'Initial Forms', - ['isol'] = 'Isolated Forms', - ['ital'] = 'Italics', - ['jalt'] = 'Justification Alternatives', - ['jp04'] = 'JIS2004 Forms', - ['jp78'] = 'JIS78 Forms', - ['jp83'] = 'JIS83 Forms', - ['jp90'] = 'JIS90 Forms', - ['kern'] = 'Kerning', - ['lfbd'] = 'Left Bounds', - ['liga'] = 'Standard Ligatures', - ['ljmo'] = 'Leading Jamo Forms', - ['lnum'] = 'Lining Figures', - ['locl'] = 'Localized Forms', - ['mark'] = 'Mark Positioning', - ['med2'] = 'Medial Forms #2', - ['medi'] = 'Medial Forms', - ['mgrk'] = 'Mathematical Greek', - ['mkmk'] = 'Mark to Mark Positioning', - ['mset'] = 'Mark Positioning via Substitution', - ['nalt'] = 'Alternate Annotation Forms', - ['nlck'] = 'NLC Kanji Forms', - ['nukt'] = 'Nukta Forms', - ['numr'] = 'Numerators', - ['onum'] = 'Old Style Figures', - ['opbd'] = 'Optical Bounds', - ['ordn'] = 'Ordinals', - ['ornm'] = 'Ornaments', - ['palt'] = 'Proportional Alternate Width', - ['pcap'] = 'Petite Capitals', - ['pnum'] = 'Proportional Figures', - ['pref'] = 'Pre-base Forms', - ['pres'] = 'Pre-base Substitutions', - ['pstf'] = 'Post-base Forms', - ['psts'] = 'Post-base Substitutions', - ['pwid'] = 'Proportional Widths', - ['qwid'] = 'Quarter Widths', - ['rand'] = 'Randomize', - ['rkrf'] = 'Rakar Forms', - ['rlig'] = 'Required Ligatures', - ['rphf'] = 'Reph Form', - ['rtbd'] = 'Right Bounds', - ['rtla'] = 'Right-To-Left Alternates', - ['rtlm'] = 'Right To Left Math', -- math - ['ruby'] = 'Ruby Notation Forms', - ['salt'] = 'Stylistic Alternates', - ['sinf'] = 'Scientific Inferiors', - ['size'] = 'Optical Size', - ['smcp'] = 'Small Capitals', - ['smpl'] = 'Simplified Forms', - ['ss01'] = 'Stylistic Set 1', - ['ss02'] = 'Stylistic Set 2', - ['ss03'] = 'Stylistic Set 3', - ['ss04'] = 'Stylistic Set 4', - ['ss05'] = 'Stylistic Set 5', - ['ss06'] = 'Stylistic Set 6', - ['ss07'] = 'Stylistic Set 7', - ['ss08'] = 'Stylistic Set 8', - ['ss09'] = 'Stylistic Set 9', - ['ss10'] = 'Stylistic Set 10', - ['ss11'] = 'Stylistic Set 11', - ['ss12'] = 'Stylistic Set 12', - ['ss13'] = 'Stylistic Set 13', - ['ss14'] = 'Stylistic Set 14', - ['ss15'] = 'Stylistic Set 15', - ['ss16'] = 'Stylistic Set 16', - ['ss17'] = 'Stylistic Set 17', - ['ss18'] = 'Stylistic Set 18', - ['ss19'] = 'Stylistic Set 19', - ['ss20'] = 'Stylistic Set 20', - ['ssty'] = 'Script Style', -- math - ['subs'] = 'Subscript', - ['sups'] = 'Superscript', - ['swsh'] = 'Swash', - ['titl'] = 'Titling', - ['tjmo'] = 'Trailing Jamo Forms', - ['tnam'] = 'Traditional Name Forms', - ['tnum'] = 'Tabular Figures', - ['trad'] = 'Traditional Forms', - ['twid'] = 'Third Widths', - ['unic'] = 'Unicase', - ['valt'] = 'Alternate Vertical Metrics', - ['vatu'] = 'Vattu Variants', - ['vert'] = 'Vertical Writing', - ['vhal'] = 'Alternate Vertical Half Metrics', - ['vjmo'] = 'Vowel Jamo Forms', - ['vkna'] = 'Vertical Kana Alternates', - ['vkrn'] = 'Vertical Kerning', - ['vpal'] = 'Proportional Alternate Vertical Metrics', - ['vrt2'] = 'Vertical Rotation', - ['zero'] = 'Slashed Zero', - - ['trep'] = 'Traditional TeX Replacements', - ['tlig'] = 'Traditional TeX Ligatures', -} - -otf.tables.baselines = { - ['hang'] = 'Hanging baseline', - ['icfb'] = 'Ideographic character face bottom edge baseline', - ['icft'] = 'Ideographic character face tope edige baseline', - ['ideo'] = 'Ideographic em-box bottom edge baseline', - ['idtp'] = 'Ideographic em-box top edge baseline', - ['math'] = 'Mathmatical centered baseline', - ['romn'] = 'Roman baseline' -} - --- can be sped up by local tables - -function otf.tables.to_tag(id) - return stringformat("%4s",lower(id)) -end - -local function resolve(tab,id) - if tab and id then - id = lower(id) - return tab[id] or tab[gsub(id," ","")] or tab['dflt'] or '' - else - return "unknown" - end -end - -function otf.meanings.script(id) - return resolve(otf.tables.scripts,id) -end -function otf.meanings.language(id) - return resolve(otf.tables.languages,id) -end -function otf.meanings.feature(id) - return resolve(otf.tables.features,id) -end -function otf.meanings.baseline(id) - return resolve(otf.tables.baselines,id) -end - -otf.tables.to_scripts = table.reverse_hash(otf.tables.scripts ) -otf.tables.to_languages = table.reverse_hash(otf.tables.languages) -otf.tables.to_features = table.reverse_hash(otf.tables.features ) - -local scripts = otf.tables.scripts -local languages = otf.tables.languages -local features = otf.tables.features - -local to_scripts = otf.tables.to_scripts -local to_languages = otf.tables.to_languages -local to_features = otf.tables.to_features - -for k, v in pairs(to_features) do - local stripped = gsub(k,"%-"," ") - to_features[stripped] = v - local stripped = gsub(k,"[^a-zA-Z0-9]","") - to_features[stripped] = v -end -for k, v in pairs(to_features) do - to_features[lower(k)] = v -end - -function otf.meanings.normalize(features) - local h = { } - for k,v in next, features do - k = lower(k) - if k == "language" or k == "lang" then - v = gsub(lower(v),"[^a-z0-9%-]","") - k = language - if not languages[v] then - h.language = to_languages[v] or "dflt" - else - h.language = v - end - elseif k == "script" then - v = gsub(lower(v),"[^a-z0-9%-]","") - if not scripts[v] then - h.script = to_scripts[v] or "dflt" - else - h.script = v - end - else - if type(v) == "string" then - local b = v:is_boolean() - if type(b) == "nil" then - v = tonumber(v) or lower(v) - else - v = b - end - end - h[to_features[k] or k] = v - end - end - return h -end - --- When I feel the need ... - ---~ otf.tables.aat = { ---~ [ 0] = { ---~ name = "allTypographicFeaturesType", ---~ [ 0] = "allTypeFeaturesOnSelector", ---~ [ 1] = "allTypeFeaturesOffSelector", ---~ }, ---~ [ 1] = { ---~ name = "ligaturesType", ---~ [0 ] = "requiredLigaturesOnSelector", ---~ [1 ] = "requiredLigaturesOffSelector", ---~ [2 ] = "commonLigaturesOnSelector", ---~ [3 ] = "commonLigaturesOffSelector", ---~ [4 ] = "rareLigaturesOnSelector", ---~ [5 ] = "rareLigaturesOffSelector", ---~ [6 ] = "logosOnSelector ", ---~ [7 ] = "logosOffSelector ", ---~ [8 ] = "rebusPicturesOnSelector", ---~ [9 ] = "rebusPicturesOffSelector", ---~ [10] = "diphthongLigaturesOnSelector", ---~ [11] = "diphthongLigaturesOffSelector", ---~ [12] = "squaredLigaturesOnSelector", ---~ [13] = "squaredLigaturesOffSelector", ---~ [14] = "abbrevSquaredLigaturesOnSelector", ---~ [15] = "abbrevSquaredLigaturesOffSelector", ---~ }, ---~ [ 2] = { ---~ name = "cursiveConnectionType", ---~ [ 0] = "unconnectedSelector", ---~ [ 1] = "partiallyConnectedSelector", ---~ [ 2] = "cursiveSelector ", ---~ }, ---~ [ 3] = { ---~ name = "letterCaseType", ---~ [ 0] = "upperAndLowerCaseSelector", ---~ [ 1] = "allCapsSelector ", ---~ [ 2] = "allLowerCaseSelector", ---~ [ 3] = "smallCapsSelector ", ---~ [ 4] = "initialCapsSelector", ---~ [ 5] = "initialCapsAndSmallCapsSelector", ---~ }, ---~ [ 4] = { ---~ name = "verticalSubstitutionType", ---~ [ 0] = "substituteVerticalFormsOnSelector", ---~ [ 1] = "substituteVerticalFormsOffSelector", ---~ }, ---~ [ 5] = { ---~ name = "linguisticRearrangementType", ---~ [ 0] = "linguisticRearrangementOnSelector", ---~ [ 1] = "linguisticRearrangementOffSelector", ---~ }, ---~ [ 6] = { ---~ name = "numberSpacingType", ---~ [ 0] = "monospacedNumbersSelector", ---~ [ 1] = "proportionalNumbersSelector", ---~ }, ---~ [ 7] = { ---~ name = "appleReserved1Type", ---~ }, ---~ [ 8] = { ---~ name = "smartSwashType", ---~ [ 0] = "wordInitialSwashesOnSelector", ---~ [ 1] = "wordInitialSwashesOffSelector", ---~ [ 2] = "wordFinalSwashesOnSelector", ---~ [ 3] = "wordFinalSwashesOffSelector", ---~ [ 4] = "lineInitialSwashesOnSelector", ---~ [ 5] = "lineInitialSwashesOffSelector", ---~ [ 6] = "lineFinalSwashesOnSelector", ---~ [ 7] = "lineFinalSwashesOffSelector", ---~ [ 8] = "nonFinalSwashesOnSelector", ---~ [ 9] = "nonFinalSwashesOffSelector", ---~ }, ---~ [ 9] = { ---~ name = "diacriticsType", ---~ [ 0] = "showDiacriticsSelector", ---~ [ 1] = "hideDiacriticsSelector", ---~ [ 2] = "decomposeDiacriticsSelector", ---~ }, ---~ [10] = { ---~ name = "verticalPositionType", ---~ [ 0] = "normalPositionSelector", ---~ [ 1] = "superiorsSelector ", ---~ [ 2] = "inferiorsSelector ", ---~ [ 3] = "ordinalsSelector ", ---~ }, ---~ [11] = { ---~ name = "fractionsType", ---~ [ 0] = "noFractionsSelector", ---~ [ 1] = "verticalFractionsSelector", ---~ [ 2] = "diagonalFractionsSelector", ---~ }, ---~ [12] = { ---~ name = "appleReserved2Type", ---~ }, ---~ [13] = { ---~ name = "overlappingCharactersType", ---~ [ 0] = "preventOverlapOnSelector", ---~ [ 1] = "preventOverlapOffSelector", ---~ }, ---~ [14] = { ---~ name = "typographicExtrasType", ---~ [0 ] = "hyphensToEmDashOnSelector", ---~ [1 ] = "hyphensToEmDashOffSelector", ---~ [2 ] = "hyphenToEnDashOnSelector", ---~ [3 ] = "hyphenToEnDashOffSelector", ---~ [4 ] = "unslashedZeroOnSelector", ---~ [5 ] = "unslashedZeroOffSelector", ---~ [6 ] = "formInterrobangOnSelector", ---~ [7 ] = "formInterrobangOffSelector", ---~ [8 ] = "smartQuotesOnSelector", ---~ [9 ] = "smartQuotesOffSelector", ---~ [10] = "periodsToEllipsisOnSelector", ---~ [11] = "periodsToEllipsisOffSelector", ---~ }, ---~ [15] = { ---~ name = "mathematicalExtrasType", ---~ [ 0] = "hyphenToMinusOnSelector", ---~ [ 1] = "hyphenToMinusOffSelector", ---~ [ 2] = "asteriskToMultiplyOnSelector", ---~ [ 3] = "asteriskToMultiplyOffSelector", ---~ [ 4] = "slashToDivideOnSelector", ---~ [ 5] = "slashToDivideOffSelector", ---~ [ 6] = "inequalityLigaturesOnSelector", ---~ [ 7] = "inequalityLigaturesOffSelector", ---~ [ 8] = "exponentsOnSelector", ---~ [ 9] = "exponentsOffSelector", ---~ }, ---~ [16] = { ---~ name = "ornamentSetsType", ---~ [ 0] = "noOrnamentsSelector", ---~ [ 1] = "dingbatsSelector ", ---~ [ 2] = "piCharactersSelector", ---~ [ 3] = "fleuronsSelector ", ---~ [ 4] = "decorativeBordersSelector", ---~ [ 5] = "internationalSymbolsSelector", ---~ [ 6] = "mathSymbolsSelector", ---~ }, ---~ [17] = { ---~ name = "characterAlternativesType", ---~ [ 0] = "noAlternatesSelector", ---~ }, ---~ [18] = { ---~ name = "designComplexityType", ---~ [ 0] = "designLevel1Selector", ---~ [ 1] = "designLevel2Selector", ---~ [ 2] = "designLevel3Selector", ---~ [ 3] = "designLevel4Selector", ---~ [ 4] = "designLevel5Selector", ---~ }, ---~ [19] = { ---~ name = "styleOptionsType", ---~ [ 0] = "noStyleOptionsSelector", ---~ [ 1] = "displayTextSelector", ---~ [ 2] = "engravedTextSelector", ---~ [ 3] = "illuminatedCapsSelector", ---~ [ 4] = "titlingCapsSelector", ---~ [ 5] = "tallCapsSelector ", ---~ }, ---~ [20] = { ---~ name = "characterShapeType", ---~ [0 ] = "traditionalCharactersSelector", ---~ [1 ] = "simplifiedCharactersSelector", ---~ [2 ] = "jis1978CharactersSelector", ---~ [3 ] = "jis1983CharactersSelector", ---~ [4 ] = "jis1990CharactersSelector", ---~ [5 ] = "traditionalAltOneSelector", ---~ [6 ] = "traditionalAltTwoSelector", ---~ [7 ] = "traditionalAltThreeSelector", ---~ [8 ] = "traditionalAltFourSelector", ---~ [9 ] = "traditionalAltFiveSelector", ---~ [10] = "expertCharactersSelector", ---~ }, ---~ [21] = { ---~ name = "numberCaseType", ---~ [ 0] = "lowerCaseNumbersSelector", ---~ [ 1] = "upperCaseNumbersSelector", ---~ }, ---~ [22] = { ---~ name = "textSpacingType", ---~ [ 0] = "proportionalTextSelector", ---~ [ 1] = "monospacedTextSelector", ---~ [ 2] = "halfWidthTextSelector", ---~ [ 3] = "normallySpacedTextSelector", ---~ }, ---~ [23] = { ---~ name = "transliterationType", ---~ [ 0] = "noTransliterationSelector", ---~ [ 1] = "hanjaToHangulSelector", ---~ [ 2] = "hiraganaToKatakanaSelector", ---~ [ 3] = "katakanaToHiraganaSelector", ---~ [ 4] = "kanaToRomanizationSelector", ---~ [ 5] = "romanizationToHiraganaSelector", ---~ [ 6] = "romanizationToKatakanaSelector", ---~ [ 7] = "hanjaToHangulAltOneSelector", ---~ [ 8] = "hanjaToHangulAltTwoSelector", ---~ [ 9] = "hanjaToHangulAltThreeSelector", ---~ }, ---~ [24] = { ---~ name = "annotationType", ---~ [ 0] = "noAnnotationSelector", ---~ [ 1] = "boxAnnotationSelector", ---~ [ 2] = "roundedBoxAnnotationSelector", ---~ [ 3] = "circleAnnotationSelector", ---~ [ 4] = "invertedCircleAnnotationSelector", ---~ [ 5] = "parenthesisAnnotationSelector", ---~ [ 6] = "periodAnnotationSelector", ---~ [ 7] = "romanNumeralAnnotationSelector", ---~ [ 8] = "diamondAnnotationSelector", ---~ }, ---~ [25] = { ---~ name = "kanaSpacingType", ---~ [ 0] = "fullWidthKanaSelector", ---~ [ 1] = "proportionalKanaSelector", ---~ }, ---~ [26] = { ---~ name = "ideographicSpacingType", ---~ [ 0] = "fullWidthIdeographsSelector", ---~ [ 1] = "proportionalIdeographsSelector", ---~ }, ---~ [103] = { ---~ name = "cjkRomanSpacingType", ---~ [ 0] = "halfWidthCJKRomanSelector", ---~ [ 1] = "proportionalCJKRomanSelector", ---~ [ 2] = "defaultCJKRomanSelector", ---~ [ 3] = "fullWidthCJKRomanSelector", ---~ }, ---~ } - -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 utf = unicode.utf8 -local match, format, find, concat, gsub, lower = string.match, string.format, string.find, table.concat, string.gsub, string.lower -local lpegmatch = lpeg.match -local utfbyte = utf.byte - -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) -local trace_unimapping = false trackers.register("otf.unimapping", function(v) trace_unimapping = v end) - -local ctxcatcodes = tex and tex.ctxcatcodes - ---[[ldx-- -<p>Eventually this code will disappear because map files are kind -of obsolete. Some code may move to runtime or auxiliary modules.</p> -<p>The name to unciode related code will stay of course.</p> ---ldx]]-- - -fonts = fonts or { } -fonts.map = fonts.map or { } -fonts.map.data = fonts.map.data or { } -fonts.map.encodings = fonts.map.encodings or { } -fonts.map.done = fonts.map.done or { } -fonts.map.loaded = fonts.map.loaded or { } -fonts.map.direct = fonts.map.direct or { } -fonts.map.line = fonts.map.line or { } - -function fonts.map.line.pdfmapline(tag,str) - return "\\loadmapline[" .. tag .. "][" .. str .. "]" -end - -function fonts.map.line.pdftex(e) -- so far no combination of slant and extend - if e.name and e.fontfile then - local fullname = e.fullname or "" - if e.slant and e.slant ~= 0 then - if e.encoding then - return fonts.map.line.pdfmapline("=",format('%s %s "%g SlantFont" <%s <%s',e.name,fullname,e.slant,e.encoding,e.fontfile)) - else - return fonts.map.line.pdfmapline("=",format('%s %s "%g SlantFont" <%s',e.name,fullname,e.slant,e.fontfile)) - end - elseif e.extend and e.extend ~= 1 and e.extend ~= 0 then - if e.encoding then - return fonts.map.line.pdfmapline("=",format('%s %s "%g ExtendFont" <%s <%s',e.name,fullname,e.extend,e.encoding,e.fontfile)) - else - return fonts.map.line.pdfmapline("=",format('%s %s "%g ExtendFont" <%s',e.name,fullname,e.extend,e.fontfile)) - end - else - if e.encoding then - return fonts.map.line.pdfmapline("=",format('%s %s <%s <%s',e.name,fullname,e.encoding,e.fontfile)) - else - return fonts.map.line.pdfmapline("=",format('%s %s <%s',e.name,fullname,e.fontfile)) - end - end - else - return nil - end -end - -function fonts.map.flush(backend) -- will also erase the accumulated data - local flushline = fonts.map.line[backend or "pdftex"] or fonts.map.line.pdftex - for _, e in pairs(fonts.map.data) do - tex.sprint(ctxcatcodes,flushline(e)) - end - fonts.map.data = { } -end - -fonts.map.line.dvips = fonts.map.line.pdftex -fonts.map.line.dvipdfmx = function() end - -function fonts.map.convert_entries(filename) - if not fonts.map.loaded[filename] then - fonts.map.data, fonts.map.encodings = fonts.map.load_file(filename,fonts.map.data, fonts.map.encodings) - fonts.map.loaded[filename] = true - end -end - -function fonts.map.load_file(filename, entries, encodings) - entries = entries or { } - encodings = encodings or { } - local f = io.open(filename) - if f then - local data = f:read("*a") - if data then - for line in gmatch(data,"(.-)[\n\t]") do - if find(line,"^[%#%%%s]") then - -- print(line) - else - local extend, slant, name, fullname, fontfile, encoding - line = gsub(line,'"(.+)"', function(s) - extend = find(s,'"([^"]+) ExtendFont"') - slant = find(s,'"([^"]+) SlantFont"') - return "" - end) - if not name then - -- name fullname encoding fontfile - name, fullname, encoding, fontfile = match(line,"^(%S+)%s+(%S*)[%s<]+(%S*)[%s<]+(%S*)%s*$") - end - if not name then - -- name fullname (flag) fontfile encoding - name, fullname, fontfile, encoding = match(line,"^(%S+)%s+(%S*)[%d%s<]+(%S*)[%s<]+(%S*)%s*$") - end - if not name then - -- name fontfile - name, fontfile = match(line,"^(%S+)%s+[%d%s<]+(%S*)%s*$") - end - if name then - if encoding == "" then encoding = nil end - entries[name] = { - name = name, -- handy - fullname = fullname, - encoding = encoding, - fontfile = fontfile, - slant = tonumber(slant), - extend = tonumber(extend) - } - encodings[name] = encoding - elseif line ~= "" then - -- print(line) - end - end - end - end - f:close() - end - return entries, encodings -end - -local function load_lum_table(filename) - local lumname = file.replacesuffix(file.basename(filename),"lum") - local lumfile = resolvers.find_file(lumname,"map") or "" - if lumfile ~= "" and lfs.isfile(lumfile) then - if trace_loading or trace_unimapping then - logs.report("load otf","enhance: loading %s ",lumfile) - end - lumunic = dofile(lumfile) - return lumunic, lumfile - end -end - -local hex = lpeg.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 = (lpeg.R("09")^1) / tonumber -local period = lpeg.P(".") - -local unicode = lpeg.P("uni") * (hexfour * (period + lpeg.P(-1)) * lpeg.Cc(false) + lpeg.Ct(hexfour^1) * lpeg.Cc(true)) -local ucode = lpeg.P("u") * (hexsix * (period + lpeg.P(-1)) * lpeg.Cc(false) + lpeg.Ct(hexsix ^1) * lpeg.Cc(true)) -local index = lpeg.P("index") * dec * lpeg.Cc(false) - -local parser = unicode + ucode + index - -local parsers = { } - -local function make_name_parser(str) - if not str or str == "" then - return parser - else - local p = parsers[str] - if not p then - p = lpeg.P(str) * period * dec * lpeg.Cc(false) - parsers[str] = p - end - return p - end -end - ---~ local parser = fonts.map.make_name_parser("Japan1") ---~ local parser = fonts.map.make_name_parser() ---~ 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) - else - return format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00) - 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) - else - t[l] = format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00) - end - end - return concat(t) -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 fonts.map.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 - -fonts.map.load_lum_table = load_lum_table -fonts.map.make_name_parser = make_name_parser -fonts.map.tounicode16 = tounicode16 -fonts.map.tounicode16sequence = tounicode16sequence - -local separator = lpeg.S("_.") -local other = lpeg.C((1 - separator)^1) -local ligsplitter = lpeg.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"))) - -fonts.map.add_to_unicode = function(data,filename) - local unicodes = data.luatex and data.luatex.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 tounicode, originals, ns, nl, private, unknown = { }, { }, 0, 0, fonts.private, format("%04X",utfbyte("?")) - data.luatex.tounicode, data.luatex.originals = tounicode, originals - local lumunic, uparser, oparser - if false then -- will become an option - lumunic = load_lum_table(filename) - lumunic = lumunic and lumunic.tounicode - end - local cidinfo, cidnames, cidcodes = data.cidinfo - local usedmap = cidinfo and cidinfo.usedname - usedmap = usedmap and lower(usedmap) - usedmap = usedmap and fonts.cid.map[usedmap] - if usedmap then - oparser = usedmap and make_name_parser(cidinfo.ordering) - cidnames = usedmap.names - cidcodes = usedmap.unicodes - end - uparser = make_name_parser() - local aglmap = fonts.map and fonts.map.agl_to_unicode - for index, glyph in next, data.glyphs do - local name, unic = glyph.name, glyph.unicode or -1 -- play safe - 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 (aglmap and aglmap[name]) - if unicode then - originals[index], tounicode[index], ns = unicode, tounicode16(unicode), 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], tounicode[index], ns = unicode, tounicode16(unicode), 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], tounicode[index], ns = unicode, tounicode16(unicode), ns + 1 - end - end - if not unicode then - local foundcodes, multiple = lpegmatch(uparser,reference) - if foundcodes then - if multiple then - originals[index], tounicode[index], nl, unicode = foundcodes, tounicode16sequence(foundcodes), nl + 1, true - else - originals[index], tounicode[index], ns, unicode = foundcodes, tounicode16(foundcodes), ns + 1, 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 == 0 then - -- skip - elseif nplit == 1 then - local base = split[1] - unicode = unicodes[base] or (aglmap and aglmap[base]) - if unicode then - if type(unicode) == "table" then - unicode = unicode[1] - end - originals[index], tounicode[index], ns = unicode, tounicode16(unicode), ns + 1 - end - else - local t = { } - for l=1,nplit do - local base = split[l] - local u = unicodes[base] or (aglmap and aglmap[base]) - if not u then - break - elseif type(u) == "table" then - t[#t+1] = u[1] - else - t[#t+1] = u - end - end - if #t > 0 then -- done then - originals[index], tounicode[index], nl, unicode = t, tounicode16sequence(t), nl + 1, true - end - end - end - -- last resort - if not unicode then - local foundcodes, multiple = lpegmatch(uparser,name) - if foundcodes then - if multiple then - originals[index], tounicode[index], nl, unicode = foundcodes, tounicode16sequence(foundcodes), nl + 1, true - else - originals[index], tounicode[index], ns, unicode = foundcodes, tounicode16(foundcodes), ns + 1, foundcodes - end - end - end - if not unicode then - originals[index], tounicode[index] = 0xFFFD, "FFFD" - end - end - end - if trace_unimapping then - for index, glyph in table.sortedpairs(data.glyphs) do - local toun, name, unic = tounicode[index], glyph.name, glyph.unicode or -1 -- play safe - if toun then - logs.report("load otf","internal: 0x%05X, name: %s, unicode: 0x%05X, tounicode: %s",index,name,unic,toun) - else - logs.report("load otf","internal: 0x%05X, name: %s, unicode: 0x%05X",index,name,unic) - end - end - end - if trace_loading and (ns > 0 or nl > 0) then - logs.report("load otf","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 ['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 utf = unicode.utf8 - -local concat, getn, utfbyte = table.concat, table.getn, 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 lpegmatch = lpeg.match - -local trace_private = false trackers.register("otf.private", function(v) trace_private = v end) -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) -local trace_features = false trackers.register("otf.features", function(v) trace_features = v end) -local trace_dynamics = false trackers.register("otf.dynamics", function(v) trace_dynamics = v end) -local trace_sequences = false trackers.register("otf.sequences", function(v) trace_sequences = v end) -local trace_math = false trackers.register("otf.math", function(v) trace_math = v end) -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) - ---~ trackers.enable("otf.loading") - ---[[ldx-- -<p>The fontforge table has organized lookups in a certain way. A first implementation -of this code was organized featurewise: information related to features was -collected and processing boiled down to a run over the features. The current -implementation honors the order in the main feature table. Since we can reorder this -table as we want, we can eventually support several models of processing. We kept -the static as well as dynamic feature processing, because it had proved to be -rather useful. The formerly three loop variants have beem discarded but will -reapear at some time.</p> - -<itemize> -<item>we loop over all lookups</item> -<item>for each lookup we do a run over the list of glyphs</item> -<item>but we only process them for features that are enabled</item> -<item>if we're dealing with a contextual lookup, we loop over all contexts</item> -<item>in that loop we quit at a match and then process the list of sublookups</item> -<item>we always continue after the match</item> -</itemize> - -<p>In <l n='context'/> we do this for each font that is used in a list, so in -practice we have quite some nested loops.</p> - -<p>We process the whole list and then consult the glyph nodes. An alternative approach -is to collect strings of characters using the same font including spaces (because some -lookups involve spaces). However, we then need to reconstruct the list which is no fun. -Also, we need to carry quite some information, like attributes, so eventually we don't -gain much (if we gain something at all).</p> - -<p>Another consideration has been to operate on sublists (subhead, subtail) but again -this would complicate matters as we then neext to keep track of a changing subhead -and subtail. On the other hand, this might save some runtime. The number of changes -involved is not that large. This only makes sense when we have many fonts in a list -and don't change to frequently.</p> ---ldx]]-- - -fonts = fonts or { } -fonts.otf = fonts.otf or { } -fonts.tfm = fonts.tfm or { } - -local otf = fonts.otf -local tfm = fonts.tfm - -local fontdata = fonts.ids - -otf.tables = otf.tables or { } -- defined in font-ott.lua -otf.meanings = otf.meanings or { } -- defined in font-ott.lua -otf.tables.features = otf.tables.features or { } -- defined in font-ott.lua -otf.tables.languages = otf.tables.languages or { } -- defined in font-ott.lua -otf.tables.scripts = otf.tables.scripts or { } -- defined in font-ott.lua - -otf.features = otf.features or { } -otf.features.list = otf.features.list or { } -otf.features.default = otf.features.default or { } - -otf.enhancers = otf.enhancers or { } -otf.glists = { "gsub", "gpos" } - -otf.version = 2.645 -- beware: also sync font-mis.lua -otf.pack = true -- beware: also sync font-mis.lua -otf.syncspace = true -otf.notdef = false -otf.cache = containers.define("fonts", "otf", otf.version, true) -otf.cleanup_aat = false -- only context - -local wildcard = "*" -local default = "dflt" - ---[[ldx-- -<p>We start with a lot of tables and related functions.</p> ---ldx]]-- - -otf.tables.global_fields = table.tohash { - "lookups", - "glyphs", - "subfonts", - "luatex", - "pfminfo", - "cidinfo", - "tables", - "names", - "unicodes", - "names", ---~ "math", - "anchor_classes", - "kern_classes", - "gpos", - "gsub" -} - -otf.tables.valid_fields = { - "anchor_classes", - "ascent", - "cache_version", - "cidinfo", - "copyright", - "creationtime", - "descent", - "design_range_bottom", - "design_range_top", - "design_size", - "encodingchanged", - "extrema_bound", - "familyname", - "fontname", - "fontstyle_id", - "fontstyle_name", - "fullname", - "glyphs", - "hasvmetrics", - "head_optimized_for_cleartype", - "horiz_base", - "issans", - "isserif", - "italicangle", - "kerns", - "lookups", - -- "luatex", - "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", - "verbose", - "version", - "vert_base", - "weight", - "weight_width_slope_only", - "xuid", -} - ---[[ldx-- -<p>Here we go.</p> ---ldx]]-- - -local function load_featurefile(ff,featurefile) - if featurefile then - featurefile = resolvers.find_file(file.addsuffix(featurefile,'fea'),'fea') - if featurefile and featurefile ~= "" then - if trace_loading then - logs.report("load otf", "featurefile: %s", featurefile) - end - fontloader.apply_featurefile(ff, featurefile) - end - end -end - -function otf.enhance(name,data,filename,verbose) - local enhancer = otf.enhancers[name] - if enhancer then - if (verbose ~= nil and verbose) or trace_loading then - logs.report("load otf","enhance: %s (%s)",name,filename) - end - enhancer(data,filename) - end -end - -local enhancers = { - -- pack and unpack are handled separately; they might even be moved - -- away from the enhancers namespace - "patch bugs", - "merge cid fonts", "prepare unicode", "cleanup ttf tables", "compact glyphs", "reverse coverage", - "cleanup aat", "enrich with features", "add some missing characters", - "reorganize mark classes", - "reorganize kerns", -- moved here - "flatten glyph lookups", "flatten anchor tables", "flatten feature tables", - "simplify glyph lookups", -- some saving - "prepare luatex tables", - "analyse features", "rehash features", - "analyse anchors", "analyse marks", "analyse unicodes", "analyse subtables", - "check italic correction","check math", - "share widths", - "strip not needed data", - "migrate metadata", - "check math parameters", -} - -function otf.load(filename,format,sub,featurefile) - local name = file.basename(file.removesuffix(filename)) - 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 data = containers.read(otf.cache(), hash) - local size = lfs.attributes(filename,"size") or 0 - if not data or data.verbose ~= fonts.verbose or data.size ~= size then - logs.report("load otf","loading: %s (hash: %s)",filename,hash) - local ff, messages - if sub then - ff, messages = fontloader.open(filename,sub) - else - ff, messages = fontloader.open(filename) - end - if trace_loading and messages and #messages > 0 then - if type(messages) == "string" then - logs.report("load otf","warning: %s",messages) - else - for m=1,#messages do - logs.report("load otf","warning: %s",tostring(messages[m])) - end - end - end - if ff then - load_featurefile(ff,featurefile) - data = fontloader.to_table(ff) - fontloader.close(ff) - if data then - logs.report("load otf","file size: %s", size) - logs.report("load otf","enhancing ...") - for e=1,#enhancers do - otf.enhance(enhancers[e],data,filename) - io.flush() -- we want instant messages - end - if otf.pack and not fonts.verbose then - otf.enhance("pack",data,filename) - end - data.size = size - data.verbose = fonts.verbose - logs.report("load otf","saving in cache: %s",filename) - data = containers.write(otf.cache(), hash, data) - collectgarbage("collect") - data = containers.read(otf.cache(), hash) -- this frees the old table and load the sparse one - collectgarbage("collect") - else - logs.report("load otf","loading failed (table conversion error)") - end - else - logs.report("load otf","loading failed (file read error)") - end - end - if data then - if trace_defining then - logs.report("define font","loading from cache: %s",hash) - end - otf.enhance("unpack",data,filename,false) -- no message here - otf.add_dimensions(data) - if trace_sequences then - otf.show_feature_order(data,filename) - end - end - return data -end - -function otf.add_dimensions(data) - -- 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 force = otf.notdef - local luatex = data.luatex - local defaultwidth = luatex.defaultwidth or 0 - local defaultheight = luatex.defaultheight or 0 - local defaultdepth = luatex.defaultdepth or 0 - for _, d in next, data.glyphs do - local bb, wd = d.boundingbox, d.width - if not wd then - d.width = defaultwidth - elseif wd ~= 0 and d.class == "mark" then - d.width = -wd - end - if force 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 - -- no need to set it and no negative heights, nil == 0 - else - d.height = ht - end - if dp == 0 or dp < 0 then - -- no negative depths and no negative depths, nil == 0 - else - d.depth = dp - end - end - end - end -end - -function otf.show_feature_order(otfdata,filename) - local sequences = otfdata.luatex.sequences - if sequences and #sequences > 0 then - if trace_loading then - logs.report("otf check","font %s has %s sequences",filename,#sequences) - logs.report("otf check"," ") - 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 - logs.report("otf check","%3i %-15s %-20s [%s]",nos,name,typ,concat(subtables,",")) - end - if features then - for feature, scripts in next, features do - local tt = { } - 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 - logs.report("otf check"," %s: %s",feature,concat(tt," ")) - end - end - end - end - if trace_loading then - logs.report("otf check","\n") - end - elseif trace_loading then - logs.report("otf check","font %s has no sequences",filename) - end -end - --- todo: normalize, design_size => designsize - -otf.enhancers["reorganize mark classes"] = function(data,filename) - if data.mark_classes then - local unicodes = data.luatex.unicodes - local reverse = { } - for name, class in next, data.mark_classes do - local t = { } - for s in gmatch(class,"[^ ]+") do - local us = unicodes[s] - if type(us) == "table" then - for u=1,#us do - t[us[u]] = true - end - else - t[us] = true - end - end - reverse[name] = t - end - data.luatex.markclasses = reverse - data.mark_classes = nil - end -end - -otf.enhancers["prepare luatex tables"] = function(data,filename) - data.luatex = data.luatex or { } - local luatex = data.luatex - luatex.filename = filename - luatex.version = otf.version - luatex.creator = "context mkiv" -end - -otf.enhancers["cleanup aat"] = function(data,filename) - if otf.cleanup_aat then - end -end - -local function analyze_features(g, features) - if g then - local t, done = { }, { } - for k=1,#g do - local f = features or g[k].features - if f then - for k=1,#f do - -- scripts and tag - local tag = f[k].tag - if not done[tag] then - t[#t+1] = tag - done[tag] = true - end - end - end - end - if #t > 0 then - return t - end - end - return nil -end - -otf.enhancers["analyse features"] = function(data,filename) - -- local luatex = data.luatex - -- luatex.gposfeatures = analyze_features(data.gpos) - -- luatex.gsubfeatures = analyze_features(data.gsub) -end - -otf.enhancers["rehash features"] = function(data,filename) - local features = { } - data.luatex.features = features - for k, what in next, otf.glists do - local dw = data[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 script, languages in next, dscripts do - script = strip(lower(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 - -otf.enhancers["analyse anchors"] = function(data,filename) - local classes = data.anchor_classes - local luatex = data.luatex - local anchor_to_lookup, lookup_to_anchor = { }, { } - luatex.anchor_to_lookup, luatex.lookup_to_anchor = anchor_to_lookup, lookup_to_anchor - 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 not l then l = { } lookup_to_anchor[lookup] = l end - l[anchor] = true - a[lookup] = true - end - end - end -end - -otf.enhancers["analyse marks"] = function(data,filename) - local glyphs = data.glyphs - local marks = { } - data.luatex.marks = marks - for unicode, index in next, data.luatex.indices do - local glyph = glyphs[index] - if glyph.class == "mark" then - marks[unicode] = true - end - end -end - -otf.enhancers["analyse unicodes"] = fonts.map.add_to_unicode - -otf.enhancers["analyse subtables"] = function(data,filename) - data.luatex = data.luatex or { } - local luatex = data.luatex - local sequences = { } - local lookups = { } - luatex.sequences = sequences - luatex.lookups = lookups - for _, g in next, { data.gsub, data.gpos } do - for k=1,#g do - local gk = g[k] - local typ = gk.type - if typ == "gsub_contextchain" or typ == "gpos_contextchain" then - gk.chain = 1 - elseif typ == "gsub_reversecontextchain" or typ == "gpos_reversecontextchain" then - gk.chain = -1 - else - gk.chain = 0 - end - local features = gk.features - if features then - sequences[#sequences+1] = gk - -- scripts, tag, ismac - local t = { } - for f=1,#features do - local feature = features[f] - local hash = { } - -- only script and langs matter - for s, languages in next, feature.scripts do - s = lower(s) - local h = hash[s] - if not h then h = { } hash[s] = h end - for l=1,#languages do - h[strip(lower(languages[l]))] = true - end - end - t[feature.tag] = hash - end - gk.features = t - else - lookups[gk.name] = gk - gk.name = nil - end - local subtables = gk.subtables - if subtables then - local t = { } - for s=1,#subtables do - local subtable = subtables[s] - local name = subtable.name - t[#t+1] = name - end - gk.subtables = t - end - local flags = gk.flags - if flags then - gk.flags = { -- 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, - } - if flags.mark_class then - gk.markclass = luatex.markclasses[flags.mark_class] - end - end - end - end -end - -otf.enhancers["merge cid fonts"] = function(data,filename) - -- we can also move the names to data.luatex.names which might - -- save us some more memory (at the cost of harder tracing) - if data.subfonts and table.is_empty(data.glyphs) then - local cidinfo = data.cidinfo - local verbose = fonts.verbose - if cidinfo.registry then - local cidmap, cidname = fonts.cid.getmap(cidinfo.registry,cidinfo.ordering,cidinfo.supplement) - if cidmap then - cidinfo.usedname = cidmap.usedname - local glyphs, uni_to_int, int_to_uni, nofnames, nofunicodes = { }, { }, { }, 0, 0 - local unicodes, names = cidmap.unicodes, cidmap.names - for n, subfont in next, data.subfonts do - for index, g in next, subfont.glyphs do - if not next(g) then - -- dummy entry - else - local unicode, name = unicodes[index], names[index] - g.cidindex = n - g.boundingbox = g.boundingbox -- or zerobox - g.name = g.name or name or "unknown" - if unicode then - uni_to_int[unicode] = index - int_to_uni[index] = unicode - nofunicodes = nofunicodes + 1 - g.unicode = unicode - elseif name then - nofnames = nofnames + 1 - g.unicode = -1 - end - glyphs[index] = g - end - end - subfont.glyphs = nil - end - if trace_loading then - logs.report("load otf","cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes, nofnames, nofunicodes+nofnames) - end - data.glyphs = glyphs - data.map = data.map or { } - data.map.map = uni_to_int - data.map.backmap = int_to_uni - elseif trace_loading then - logs.report("load otf","unable to remap cid font, missing cid file for %s",filename) - end - elseif trace_loading then - logs.report("load otf","font %s has no glyphs",filename) - end - end -end - -otf.enhancers["prepare unicode"] = function(data,filename) - local luatex = data.luatex - if not luatex then luatex = { } data.luatex = luatex end - local indices, unicodes, multiples, internals = { }, { }, { }, { } - local glyphs = data.glyphs - local mapmap = data.map - if not mapmap then - logs.report("load otf","no map in %s",filename) - mapmap = { } - data.map = { map = mapmap } - elseif not mapmap.map then - logs.report("load otf","no unicode map in %s",filename) - mapmap = { } - data.map.map = mapmap - else - mapmap = mapmap.map - end - local criterium = fonts.private - local private = fonts.private - for index, glyph in next, glyphs do - if index > 0 then - local name = glyph.name - if name then - local unicode = glyph.unicode - if unicode == -1 or unicode >= criterium then - glyph.unicode = private - indices[private] = index - unicodes[name] = private - internals[index] = true - if trace_private then - logs.report("load otf","enhance: glyph %s at index U+%04X is moved to private unicode slot U+%04X",name,index,private) - end - private = private + 1 - else - indices[unicode] = index - unicodes[name] = unicode - end - end - end - end - -- beware: the indices table is used to initialize the tfm table - for unicode, index in next, mapmap do - if not internals[index] then - local name = glyphs[index].name - if name then - local un = unicodes[name] - if not un then - unicodes[name] = unicode -- or 0 - elseif type(un) == "number" then - if un ~= unicode then - multiples[#multiples+1] = name - unicodes[name] = { un, unicode } - indices[unicode] = index - end - else - local ok = false - for u=1,#un do - if un[u] == unicode then - ok = true - break - end - end - if not ok then - multiples[#multiples+1] = name - un[#un+1] = unicode - indices[unicode] = index - end - end - end - end - end - if trace_loading then - if #multiples > 0 then - logs.report("load otf","%s glyph are reused: %s",#multiples, concat(multiples," ")) - else - logs.report("load otf","no glyph are reused") - end - end - luatex.indices = indices - luatex.unicodes = unicodes - luatex.private = private -end - -otf.enhancers["cleanup ttf tables"] = function(data,filename) - local ttf_tables = data.ttf_tables - if ttf_tables then - for k=1,#ttf_tables do - if ttf_tables[k].data then ttf_tables[k].data = "deleted" end - end - end - data.ttf_tab_saved = nil -end - -otf.enhancers["compact glyphs"] = function(data,filename) - table.compact(data.glyphs) -- needed? - if data.subfonts then - for _, subfont in next, data.subfonts do - table.compact(subfont.glyphs) -- needed? - end - end -end - -otf.enhancers["reverse coverage"] = function(data,filename) - -- we prefer the before lookups in a normal order - if data.lookups then - for _, v in next, data.lookups do - if v.rules then - for _, vv in next, v.rules do - local c = vv.coverage - if c and c.before then - c.before = table.reverse(c.before) - end - end - end - end - end -end - -otf.enhancers["check italic correction"] = function(data,filename) - local glyphs = data.glyphs - local ok = false - for index, glyph in next, glyphs do - local ic = glyph.italic_correction - if ic then - if ic ~= 0 then - glyph.italic = ic - end - glyph.italic_correction = nil - ok = true - end - end - -- we can use this to avoid calculations - otf.tables.valid_fields[#otf.tables.valid_fields+1] = "has_italic" - data.has_italic = true -end - -otf.enhancers["check math"] = function(data,filename) - if data.math then - -- we move the math stuff into a math subtable because we then can - -- test faster in the tfm copy - local glyphs = data.glyphs - local unicodes = data.luatex.unicodes - for index, glyph in next, glyphs do - local mk = glyph.mathkern - local hv = glyph.horiz_variants - local vv = glyph.vert_variants - if mk or hv or vv then - local math = { } - glyph.math = math - if mk then - for k, v in next, mk do - if not next(v) then - mk[k] = nil - end - end - math.kerns = mk - glyph.mathkern = nil - end - if hv then - math.horiz_variants = hv.variants - local p = hv.parts - if p then - if #p>0 then - for i=1,#p do - local pi = p[i] - pi.glyph = unicodes[pi.component] or 0 - end - math.horiz_parts = p - end - end - local ic = hv.italic_correction - if ic and ic ~= 0 then - math.horiz_italic_correction = ic - end - glyph.horiz_variants = nil - end - if vv then - local uc = unicodes[index] - math.vert_variants = vv.variants - local p = vv.parts - if p then - if #p>0 then - for i=1,#p do - local pi = p[i] - pi.glyph = unicodes[pi.component] or 0 - end - math.vert_parts = p - end - end - local ic = vv.italic_correction - if ic and ic ~= 0 then - math.vert_italic_correction = ic - end - glyph.vert_variants = nil - end - local ic = glyph.italic_correction - if ic then - if ic ~= 0 then - math.italic_correction = ic - end - glyph.italic_correction = nil - end - end - end - end -end - -otf.enhancers["share widths"] = function(data,filename) - local glyphs = data.glyphs - local widths = { } - for index, glyph in next, glyphs do - local width = glyph.width - widths[width] = (widths[width] or 0) + 1 - end - -- share 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 - if trace_loading then - logs.report("load otf", "most common width: %s (%s times), sharing (cjk font)",wd,most) - end - for k, v in next, glyphs do - if v.width == wd then - v.width = nil - end - end - data.luatex.defaultwidth = wd - end -end - --- kern: ttf has a table with kerns - ---~ otf.enhancers["reorganize kerns"] = function(data,filename) ---~ local glyphs, mapmap, unicodes = data.glyphs, data.luatex.indices, data.luatex.unicodes ---~ local mkdone = false ---~ for index, glyph in next, data.glyphs do ---~ if glyph.kerns then ---~ local mykerns = { } ---~ for k,v in next, glyph.kerns do ---~ local vc, vo, vl = v.char, v.off, v.lookup ---~ if vc and vo and vl then -- brrr, wrong! we miss the non unicode ones ---~ local uvc = unicodes[vc] ---~ if not uvc then ---~ if trace_loading then ---~ logs.report("load otf","problems with unicode %s of kern %s at glyph %s",vc,k,index) ---~ end ---~ else ---~ if type(vl) ~= "table" then ---~ vl = { vl } ---~ end ---~ for l=1,#vl do ---~ local vll = vl[l] ---~ local mkl = mykerns[vll] ---~ if not mkl then ---~ mkl = { } ---~ mykerns[vll] = mkl ---~ end ---~ if type(uvc) == "table" then ---~ for u=1,#uvc do ---~ mkl[uvc[u]] = vo ---~ end ---~ else ---~ mkl[uvc] = vo ---~ end ---~ end ---~ end ---~ end ---~ end ---~ glyph.mykerns = mykerns ---~ glyph.kerns = nil -- saves space and time ---~ mkdone = true ---~ end ---~ end ---~ if trace_loading and mkdone then ---~ logs.report("load otf", "replacing 'kerns' tables by 'mykerns' tables") ---~ end ---~ if data.kerns then ---~ if trace_loading then ---~ logs.report("load otf", "removing global 'kern' table") ---~ end ---~ data.kerns = nil ---~ end ---~ local dgpos = data.gpos ---~ if dgpos then ---~ for gp=1,#dgpos do ---~ local gpos = dgpos[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 ---~ for k=1,#kernclass do ---~ local kcl = kernclass[k] ---~ local firsts, seconds, offsets, lookups = kcl.firsts, kcl.seconds, kcl.offsets, kcl.lookup -- singular ---~ if type(lookups) ~= "table" then ---~ lookups = { lookups } ---~ end ---~ for l=1,#lookups do ---~ local lookup = lookups[l] ---~ -- weird, as maxfirst and maxseconds can have holes ---~ local maxfirsts, maxseconds = getn(firsts), getn(seconds) ---~ if trace_loading then ---~ logs.report("load otf", "adding kernclass %s with %s times %s pairs",lookup, maxfirsts, maxseconds) ---~ end ---~ for fk, fv in next, firsts do ---~ for first in gmatch(fv,"[^ ]+") do ---~ local first_unicode = unicodes[first] ---~ if type(first_unicode) == "number" then ---~ first_unicode = { first_unicode } ---~ end ---~ for f=1,#first_unicode do ---~ local glyph = glyphs[mapmap[first_unicode[f]]] ---~ if glyph then ---~ local mykerns = glyph.mykerns ---~ if not mykerns then ---~ mykerns = { } -- unicode indexed ! ---~ glyph.mykerns = mykerns ---~ end ---~ local lookupkerns = mykerns[lookup] ---~ if not lookupkerns then ---~ lookupkerns = { } ---~ mykerns[lookup] = lookupkerns ---~ end ---~ for sk, sv in next, seconds do ---~ local offset = offsets[(fk-1) * maxseconds + sk] ---~ --~ local offset = offsets[sk] -- (fk-1) * maxseconds + sk] ---~ for second in gmatch(sv,"[^ ]+") do ---~ local second_unicode = unicodes[second] ---~ if type(second_unicode) == "number" then ---~ lookupkerns[second_unicode] = offset ---~ else ---~ for s=1,#second_unicode do ---~ lookupkerns[second_unicode[s]] = offset ---~ end ---~ end ---~ end ---~ end ---~ elseif trace_loading then ---~ logs.report("load otf", "no glyph data for U+%04X", first_unicode[f]) ---~ end ---~ end ---~ end ---~ end ---~ end ---~ end ---~ subtable.comment = "The kernclass table is merged into mykerns in the indexed glyph tables." ---~ subtable.kernclass = { } ---~ end ---~ end ---~ end ---~ end ---~ end ---~ end - -otf.enhancers["reorganize kerns"] = function(data,filename) - local glyphs, mapmap, unicodes = data.glyphs, data.luatex.indices, data.luatex.unicodes - local mkdone = false - for index, glyph in next, data.glyphs do - if glyph.kerns then - local mykerns = { } - for k,v in next, glyph.kerns do - local vc, vo, vl = v.char, v.off, v.lookup - if vc and vo and vl then -- brrr, wrong! we miss the non unicode ones - local uvc = unicodes[vc] - if not uvc then - if trace_loading then - logs.report("load otf","problems with unicode %s of kern %s at glyph %s",vc,k,index) - end - else - if type(vl) ~= "table" then - vl = { vl } - end - for l=1,#vl do - local vll = vl[l] - local mkl = mykerns[vll] - if not mkl then - mkl = { } - mykerns[vll] = mkl - end - if type(uvc) == "table" then - for u=1,#uvc do - mkl[uvc[u]] = vo - end - else - mkl[uvc] = vo - end - end - end - end - end - glyph.mykerns = mykerns - glyph.kerns = nil -- saves space and time - mkdone = true - end - end - if trace_loading and mkdone then - logs.report("load otf", "replacing 'kerns' tables by 'mykerns' tables") - end - if data.kerns then - if trace_loading then - logs.report("load otf", "removing global 'kern' table") - end - data.kerns = nil - end - local dgpos = data.gpos - if dgpos then - local separator = lpeg.P(" ") - local other = ((1 - separator)^0) / unicodes - local splitter = lpeg.Ct(other * (separator * other)^0) - for gp=1,#dgpos do - local gpos = dgpos[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 - for k=1,#kernclass do - local kcl = kernclass[k] - local firsts, seconds, offsets, lookups = kcl.firsts, kcl.seconds, kcl.offsets, kcl.lookup -- singular - if type(lookups) ~= "table" then - lookups = { lookups } - end - local split = { } - for l=1,#lookups do - local lookup = lookups[l] - -- weird, as maxfirst and maxseconds can have holes, first seems to be indexed, seconds starts at 2 - local maxfirsts, maxseconds = getn(firsts), getn(seconds) - for _, s in next, firsts do - split[s] = split[s] or lpegmatch(splitter,s) - end - for _, s in next, seconds do - split[s] = split[s] or lpegmatch(splitter,s) - end - if trace_loading then - logs.report("load otf", "adding kernclass %s with %s times %s pairs",lookup, maxfirsts, maxseconds) - end - local function do_it(fk,first_unicode) - local glyph = glyphs[mapmap[first_unicode]] - if glyph then - local mykerns = glyph.mykerns - if not mykerns then - mykerns = { } -- unicode indexed ! - glyph.mykerns = mykerns - end - local lookupkerns = mykerns[lookup] - if not lookupkerns then - lookupkerns = { } - mykerns[lookup] = lookupkerns - end - local baseoffset = (fk-1) * maxseconds - for sk=2,maxseconds do - local sv = seconds[sk] - local offset = offsets[baseoffset + sk] - --~ local offset = offsets[sk] -- (fk-1) * maxseconds + sk] - local splt = split[sv] - if splt then - for i=1,#splt do - local second_unicode = splt[i] - if tonumber(second_unicode) then - lookupkerns[second_unicode] = offset - else - for s=1,#second_unicode do - lookupkerns[second_unicode[s]] = offset - end - end - end - end - end - elseif trace_loading then - logs.report("load otf", "no glyph data for U+%04X", first_unicode) - end - end - for fk=1,#firsts do - local fv = firsts[fk] - local splt = split[fv] - if splt then - for i=1,#splt do - local first_unicode = splt[i] - if tonumber(first_unicode) then - do_it(fk,first_unicode) - else - for f=1,#first_unicode do - do_it(fk,first_unicode[f]) - end - end - end - end - end - end - end - subtable.comment = "The kernclass table is merged into mykerns in the indexed glyph tables." - subtable.kernclass = { } - end - end - end - end - end -end - -otf.enhancers["strip not needed data"] = function(data,filename) - local verbose = fonts.verbose - local int_to_uni = data.luatex.unicodes - for k, v in next, data.glyphs do - local d = v.dependents - if d then v.dependents = nil end - local a = v.altuni - if a then v.altuni = nil end - if verbose then - local code = int_to_uni[k] - -- looks like this is done twice ... bug? - if code then - local vu = v.unicode - if not vu then - v.unicode = code - elseif type(vu) == "table" then - if vu[#vu] == code then - -- weird - else - vu[#vu+1] = code - end - elseif vu ~= code then - v.unicode = { vu, code } - end - end - else - v.unicode = nil - v.index = nil - end - end - data.luatex.comment = "Glyph tables have their original index. When present, mykern tables are indexed by unicode." - data.map = nil - data.names = nil -- funny names for editors - data.glyphcnt = nil - data.glyphmax = nil - if true then - data.gpos = nil - data.gsub = nil - data.anchor_classes = nil - end -end - -otf.enhancers["migrate metadata"] = function(data,filename) - local global_fields = otf.tables.global_fields - local metadata = { } - for k,v in next, data do - if not global_fields[k] then - metadata[k] = v - data[k] = nil - end - end - data.metadata = metadata - -- goodies - local pfminfo = data.pfminfo - metadata.isfixedpitch = metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose["proportion"] == "Monospaced") - metadata.charwidth = pfminfo and pfminfo.avgwidth -end - -local private_math_parameters = { - "FractionDelimiterSize", - "FractionDelimiterDisplayStyleSize", -} - -otf.enhancers["check math parameters"] = function(data,filename) - local mathdata = data.metadata.math - if mathdata then - for m=1,#private_math_parameters do - local pmp = private_math_parameters[m] - if not mathdata[pmp] then - if trace_loading then - logs.report("load otf", "setting math parameter '%s' to 0", pmp) - end - mathdata[pmp] = 0 - end - end - end -end - -otf.enhancers["flatten glyph lookups"] = function(data,filename) - for k, v in next, data.glyphs do - local lookups = v.lookups - if lookups then - for kk, vv in next, lookups do - for kkk=1,#vv do - local vvv = vv[kkk] - local s = vvv.specification - if s then - local t = vvv.type - if t == "ligature" then - vv[kkk] = { "ligature", s.components, s.char } - elseif t == "alternate" then - vv[kkk] = { "alternate", s.components } - elseif t == "substitution" then - vv[kkk] = { "substitution", s.variant } - elseif t == "multiple" then - vv[kkk] = { "multiple", s.components } - elseif t == "position" then - vv[kkk] = { "position", { s.x or 0, s.y or 0, s.h or 0, s.v or 0 } } - elseif t == "pair" then - local one, two, paired = s.offsets[1], s.offsets[2], s.paired or "" - if one then - if two then - vv[kkk] = { "pair", 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 - vv[kkk] = { "pair", paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 } } - end - else - if two then - vv[kkk] = { "pair", paired, { }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0} } -- maybe nil instead of { } - else - vv[kkk] = { "pair", paired } - end - end - else - if trace_loading then - logs.report("load otf", "flattening needed, report to context list") - end - for a, b in next, s do - if trace_loading and vvv[a] then - logs.report("load otf", "flattening conflict, report to context list") - end - vvv[a] = b - end - vvv.specification = nil - end - end - end - end - end - end -end - -otf.enhancers["simplify glyph lookups"] = function(data,filename) - for k, v in next, data.glyphs do - local lookups = v.lookups - if lookups then - local slookups, mlookups - for kk, vv in next, lookups do - if #vv == 1 then - if not slookups then - slookups = { } - v.slookups = slookups - end - slookups[kk] = vv[1] - else - if not mlookups then - mlookups = { } - v.mlookups = mlookups - end - mlookups[kk] = vv - end - end - v.lookups = nil - end - end -end - -otf.enhancers["flatten anchor tables"] = function(data,filename) - for k, v in next, data.glyphs do - if v.anchors then - for kk, vv in next, v.anchors do - for kkk, vvv in next, vv do - if vvv.x or vvv.y then - vv[kkk] = { vvv.x or 0, vvv.y or 0 } - else - for kkkk=1,#vvv do - local vvvv = vvv[kkkk] - vvv[kkkk] = { vvvv.x or 0, vvvv.y or 0 } - end - end - end - end - end - end -end - -otf.enhancers["flatten feature tables"] = function(data,filename) - -- is this needed? do we still use them at all? - for _, tag in next, otf.glists do - if data[tag] then - if trace_loading then - logs.report("load otf", "flattening %s table", tag) - end - for k, v in next, data[tag] do - local features = v.features - if features then - for kk=1,#features do - local vv = features[kk] - local t = { } - local scripts = vv.scripts - for kkk=1,#scripts do - local vvv = scripts[kkk] - t[vvv.script] = vvv.langs - end - vv.scripts = t - end - end - end - end - end -end - -otf.enhancers.patches = otf.enhancers.patches or { } - -otf.enhancers["patch bugs"] = function(data,filename) - local basename = file.basename(lower(filename)) - for pattern, action in next, otf.enhancers.patches do - if find(basename,pattern) then - action(data,filename) - end - end -end - --- tex features - -fonts.otf.enhancers["enrich with features"] = function(data,filename) - -- later, ctx only -end - -function otf.features.register(name,default) - otf.features.list[#otf.features.list+1] = name - otf.features.default[name] = default -end - -function otf.set_features(tfmdata,features) - local processes = { } - if not table.is_empty(features) then - local lists = { - fonts.triggers, - fonts.processors, - fonts.manipulators, - } - local mode = tfmdata.mode or fonts.mode -- or features.mode - local initializers = fonts.initializers - local fi = initializers[mode] - if fi then - local fiotf = fi.otf - if fiotf then - local done = { } - for l=1,4 do - local list = lists[l] - if list then - for i=1,#list do - local f = list[i] - local value = features[f] - if value and fiotf[f] then -- brr - if not done[f] then -- so, we can move some to triggers - if trace_features then - logs.report("define otf","initializing feature %s to %s for mode %s for font %s",f,tostring(value),mode or 'unknown', tfmdata.fullname or 'unknown') - end - fiotf[f](tfmdata,value) -- can set mode (no need to pass otf) - mode = tfmdata.mode or fonts.mode -- keep this, mode can be set local ! - local im = initializers[mode] - if im then - fiotf = initializers[mode].otf - end - done[f] = true - end - end - end - end - end - end - end - local fm = fonts.methods[mode] - if fm then - local fmotf = fm.otf - if fmotf then - for l=1,4 do - local list = lists[l] - if list then - for i=1,#list do - local f = list[i] - if fmotf[f] then -- brr - if trace_features then - logs.report("define otf","installing feature handler %s for mode %s for font %s",f,mode or 'unknown', tfmdata.fullname or 'unknown') - end - processes[#processes+1] = fmotf[f] - end - end - end - end - end - else - -- message - end - end - return processes, features -end - -function otf.otf_to_tfm(specification) - local name = specification.name - local sub = specification.sub - local filename = specification.filename - local format = specification.format - local features = specification.features.normal - local cache_id = specification.hash - local tfmdata = containers.read(tfm.cache(),cache_id) ---~ print(cache_id) - if not tfmdata then - local otfdata = otf.load(filename,format,sub,features and features.featurefile) - if not table.is_empty(otfdata) then - otfdata.shared = otfdata.shared or { - featuredata = { }, - anchorhash = { }, - initialized = false, - } - tfmdata = otf.copy_to_tfm(otfdata,cache_id) - if not table.is_empty(tfmdata) then - tfmdata.unique = tfmdata.unique or { } - tfmdata.shared = tfmdata.shared or { } -- combine - local shared = tfmdata.shared - shared.otfdata = otfdata - shared.features = features -- default - shared.dynamics = { } - shared.processes = { } - shared.set_dynamics = otf.set_dynamics -- fast access and makes other modules independent - -- this will be done later anyway, but it's convenient to have - -- them already for fast access - tfmdata.luatex = otfdata.luatex - tfmdata.indices = otfdata.luatex.indices - tfmdata.unicodes = otfdata.luatex.unicodes - tfmdata.marks = otfdata.luatex.marks - tfmdata.originals = otfdata.luatex.originals - tfmdata.changed = { } - tfmdata.has_italic = otfdata.metadata.has_italic - if not tfmdata.language then tfmdata.language = 'dflt' end - if not tfmdata.script then tfmdata.script = 'dflt' end - shared.processes, shared.features = otf.set_features(tfmdata,fonts.define.check(features,otf.features.default)) - end - end - containers.write(tfm.cache(),cache_id,tfmdata) - end - return tfmdata -end - ---~ { ---~ ['boundingbox']={ 95, -458, 733, 1449 }, ---~ ['class']="base", ---~ ['name']="braceleft", ---~ ['unicode']=123, ---~ ['vert_variants']={ ---~ ['italic_correction']=0, ---~ ['parts']={ ---~ { ['component']="uni23A9", ['endConnectorLength']=1000, ['fullAdvance']=2546, ['is_extender']=0, ['startConnectorLength']=0, }, -- bot ---~ { ['component']="uni23AA", ['endConnectorLength']=2500, ['fullAdvance']=2501, ['is_extender']=1, ['startConnectorLength']=2500, }, -- rep ---~ { ['component']="uni23A8", ['endConnectorLength']=1000, ['fullAdvance']=4688, ['is_extender']=0, ['startConnectorLength']=1000, }, -- mid ---~ { ['component']="uni23AA", ['endConnectorLength']=2500, ['fullAdvance']=2501, ['is_extender']=1, ['startConnectorLength']=2500, }, -- rep ---~ { ['component']="uni23A7", ['endConnectorLength']=0, ['fullAdvance']=2546, ['is_extender']=0, ['startConnectorLength']=1000, }, -- top ---~ }, ---~ ['variants']="braceleft braceleft.vsize1 braceleft.vsize2 braceleft.vsize3 braceleft.vsize4 braceleft.vsize5 braceleft.vsize6 braceleft.vsize7", ---~ }, ---~ ['width']=793, ---~ }, - --- 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 - -function otf.copy_to_tfm(data,cache_id) -- we can save a copy when we reorder the tma to unicode (nasty due to one->many) - if data then - local glyphs, pfminfo, metadata = data.glyphs or { }, data.pfminfo or { }, data.metadata or { } - local luatex = data.luatex - local unicodes = luatex.unicodes -- names to unicodes - local indices = luatex.indices - local characters, parameters, math_parameters, descriptions = { }, { }, { }, { } - local tfm = { - characters = characters, - parameters = parameters, - math_parameters = math_parameters, - descriptions = descriptions, - indices = indices, - unicodes = unicodes, - } - -- indices maps from unicodes to indices - for u, i in next, indices do - characters[u] = { } -- we need this because for instance we add protruding info and loop over characters - descriptions[u] = glyphs[i] - end - -- math - if metadata.math then - -- parameters - for name, value in next, metadata.math do - math_parameters[name] = value - end - -- we could use a subset - for u, char in next, characters do - local d = descriptions[u] - local m = d.math - -- we have them shared because that packs nicer - -- we could prepare the variants and keep 'm in descriptions - if m then - local variants = m.horiz_variants - if variants then - local c = char - for n in gmatch(variants,"[^ ]+") do - local un = unicodes[n] - if un and u ~= un then - c.next = un - c = characters[un] - end - end - c.horiz_variants = m.horiz_parts - else - local variants = m.vert_variants - if variants then - local c = char - for n in gmatch(variants,"[^ ]+") do - local un = unicodes[n] - if un and u ~= un then - c.next = un - c = characters[un] - end - end - c.vert_variants = m.vert_parts - c.vert_italic_correction = m.vert_italic_correction - end - end - local kerns = m.kerns - if kerns then - char.mathkerns = kerns - end - end - end - end - -- end math - local designsize = metadata.designsize or metadata.design_size or 100 - if designsize == 0 then - designsize = 100 - end - local spaceunits = 500 - tfm.units = metadata.units_per_em or 1000 - -- we need a runtime lookup because of running from cdrom or zip, brrr - tfm.filename = resolvers.findbinfile(luatex.filename,"") or luatex.filename - tfm.fullname = metadata.fullname - tfm.fontname = metadata.fontname - tfm.psname = tfm.fontname or tfm.fullname - tfm.encodingbytes = 2 - tfm.cidinfo = data.cidinfo - tfm.cidinfo.registry = tfm.cidinfo.registry or "" - tfm.type = "real" - tfm.direction = 0 - tfm.boundarychar_label = 0 - tfm.boundarychar = 65536 - tfm.designsize = (designsize/10)*65536 - tfm.spacer = "500 units" - local endash, emdash = 0x20, 0x2014 -- unicodes['space'], unicodes['emdash'] - if metadata.isfixedpitch then - if descriptions[endash] then - spaceunits, tfm.spacer = descriptions[endash].width, "space" - end - if not spaceunits and descriptions[emdash] then - spaceunits, tfm.spacer = descriptions[emdash].width, "emdash" - end - if not spaceunits and metadata.charwidth then - spaceunits, tfm.spacer = metadata.charwidth, "charwidth" - end - else - if descriptions[endash] then - spaceunits, tfm.spacer = descriptions[endash].width, "space" - end - if not spaceunits and descriptions[emdash] then - spaceunits, tfm.spacer = descriptions[emdash].width/2, "emdash/2" - end - if not spaceunits and metadata.charwidth then - spaceunits, tfm.spacer = metadata.charwidth, "charwidth" - end - end - spaceunits = tonumber(spaceunits) or tfm.units/2 -- 500 -- brrr - parameters.slant = 0 - parameters.space = spaceunits -- 3.333 (cmr10) - parameters.space_stretch = tfm.units/2 -- 500 -- 1.666 (cmr10) - parameters.space_shrink = 1*tfm.units/3 -- 333 -- 1.111 (cmr10) - parameters.x_height = 2*tfm.units/5 -- 400 - parameters.quad = tfm.units -- 1000 - if spaceunits < 2*tfm.units/5 then - -- todo: warning - end - local italicangle = metadata.italicangle - tfm.ascender = math.abs(metadata.ascent or 0) - tfm.descender = math.abs(metadata.descent or 0) - if italicangle then -- maybe also in afm _ - tfm.italicangle = italicangle - parameters.slant = parameters.slant - math.round(math.tan(italicangle*math.pi/180)) - end - if metadata.isfixedpitch then - parameters.space_stretch = 0 - parameters.space_shrink = 0 - elseif otf.syncspace then -- - parameters.space_stretch = spaceunits/2 - parameters.space_shrink = spaceunits/3 - end - parameters.extra_space = parameters.space_shrink -- 1.111 (cmr10) - if pfminfo.os2_xheight and pfminfo.os2_xheight > 0 then - parameters.x_height = pfminfo.os2_xheight - else - local x = 0x78 -- unicodes['x'] - if x then - local x = descriptions[x] - if x then - parameters.x_height = x.height - end - end - end - -- [6] - return tfm - else - return nil - end -end - -otf.features.register('mathsize') - -function tfm.read_from_open_type(specification) - local tfmtable = otf.otf_to_tfm(specification) - if tfmtable then - local otfdata = tfmtable.shared.otfdata - tfmtable.name = specification.name - tfmtable.sub = specification.sub - local s = specification.size - local m = otfdata.metadata.math - if m then - local f = specification.features - if f then - local f = f.normal - if f and f.mathsize then - local mathsize = specification.mathsize or 0 - if mathsize == 2 then - local p = m.ScriptPercentScaleDown - if p then - local ps = p * specification.textsize / 100 - if trace_math then - logs.report("define font","asked script size: %s, used: %s (%2.2f %%)",s,ps,(ps/s)*100) - end - s = ps - end - elseif mathsize == 3 then - local p = m.ScriptScriptPercentScaleDown - if p then - local ps = p * specification.textsize / 100 - if trace_math then - logs.report("define font","asked scriptscript size: %s, used: %s (%2.2f %%)",s,ps,(ps/s)*100) - end - s = ps - end - end - end - end - end - tfmtable = tfm.scale(tfmtable,s,specification.relativeid) - -- here we resolve the name; file can be relocated, so this info is not in the cache - local filename = (otfdata and otfdata.luatex and otfdata.luatex.filename) or specification.filename - if not filename then - -- try to locate anyway and set otfdata.luatex.filename - end - if filename then - tfmtable.encodingbytes = 2 - tfmtable.filename = resolvers.findbinfile(filename,"") or filename - tfmtable.fontname = tfmtable.fontname or otfdata.metadata.fontname - tfmtable.fullname = tfmtable.fullname or otfdata.metadata.fullname or tfmtable.fontname - local order = otfdata and otfdata.metadata.order2 - if order == 0 then - tfmtable.format = 'opentype' - elseif order == 1 then - tfmtable.format = 'truetype' - else - tfmtable.format = specification.format - end - tfmtable.name = tfmtable.filename or tfmtable.fullname or tfmtable.fontname - if tfm.fontname_mode == "specification" then - -- not to be used in context ! - local specname = specification.specification - if specname then - tfmtable.name = specname - if trace_defining then - logs.report("define font","overloaded fontname: '%s'",specname) - end - end - end - end - fonts.logger.save(tfmtable,file.extname(specification.filename),specification) - end ---~ print(tfmtable.fullname) - return tfmtable -end - --- helpers - -function otf.collect_lookups(otfdata,kind,script,language) - -- maybe store this in the font - local sequences = otfdata.luatex.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 - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-otd'] = { - 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 trace_dynamics = false trackers.register("otf.dynamics", function(v) trace_dynamics = v end) - -fonts = fonts or { } -fonts.otf = fonts.otf or { } - -local otf = fonts.otf -local fontdata = fonts.ids - -otf.features = otf.features or { } -otf.features.default = otf.features.default or { } - -local context_setups = fonts.define.specify.context_setups -local context_numbers = fonts.define.specify.context_numbers - -local a_to_script = { } otf.a_to_script = a_to_script -local a_to_language = { } otf.a_to_language = a_to_language - -function otf.set_dynamics(font,dynamics,attribute) - features = context_setups[context_numbers[attribute]] -- can be moved to caller - if features then - local script = features.script or 'dflt' - local language = features.language or 'dflt' - local ds = dynamics[script] - if not ds then - ds = { } - dynamics[script] = ds - end - local dsl = ds[language] - if not dsl then - dsl = { } - ds[language] = dsl - end - local dsla = dsl[attribute] - if dsla then - -- if trace_dynamics then - -- logs.report("otf define","using dynamics %s: attribute %s, script %s, language %s",context_numbers[attribute],attribute,script,language) - -- end - return dsla - else - local tfmdata = fontdata[font] - a_to_script [attribute] = script - a_to_language[attribute] = language - -- we need to save some values - local saved = { - script = tfmdata.script, - language = tfmdata.language, - mode = tfmdata.mode, - features = tfmdata.shared.features - } - tfmdata.mode = "node" - tfmdata.language = language - tfmdata.script = script - tfmdata.shared.features = { } - -- end of save - dsla = otf.set_features(tfmdata,fonts.define.check(features,otf.features.default)) - if trace_dynamics then - logs.report("otf define","setting dynamics %s: attribute %s, script %s, language %s",context_numbers[attribute],attribute,script,language) - end - -- we need to restore some values - tfmdata.script = saved.script - tfmdata.language = saved.language - tfmdata.mode = saved.mode - tfmdata.shared.features = saved.features - -- end of restore - dynamics[script][language][attribute] = dsla -- cache - return dsla - end - end - return nil -- { } -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" -} - --- i need to check features=yes|no also in relation to hashing - -local lower = string.lower - -local otf = fonts.otf - -otf.default_language = 'latn' -otf.default_script = 'dflt' - -local languages = otf.tables.languages -local scripts = otf.tables.scripts - -function otf.features.language(tfmdata,value) - if value then - value = lower(value) - if languages[value] then - tfmdata.language = value - end - end -end - -function otf.features.script(tfmdata,value) - if value then - value = lower(value) - if scripts[value] then - tfmdata.script = value - end - end -end - -function otf.features.mode(tfmdata,value) - if value then - tfmdata.mode = lower(value) - end -end - -fonts.initializers.base.otf.language = otf.features.language -fonts.initializers.base.otf.script = otf.features.script -fonts.initializers.base.otf.mode = otf.features.mode -fonts.initializers.base.otf.method = otf.features.mode - -fonts.initializers.node.otf.language = otf.features.language -fonts.initializers.node.otf.script = otf.features.script -fonts.initializers.node.otf.mode = otf.features.mode -fonts.initializers.node.otf.method = otf.features.mode - -otf.features.register("features",true) -- we always do features -table.insert(fonts.processors,"features") -- we need a proper function for doing this - - -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" -} - -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 otf = fonts.otf -local tfm = fonts.tfm - -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_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 wildcard = "*" -local default = "dflt" - -local split_at_space = lpeg.Ct(lpeg.splitat(" ")) -- no trailing or multiple spaces anyway - -local pcache, fcache = { }, { } -- could be weak - -local function gref(descriptions,n) - if type(n) == "number" then - local name = descriptions[n].name - if name then - return format("U+%04X (%s)",n,name) - else - return format("U+%04X") - end - elseif n then - local num, nam = { }, { } - for i=1,#n do - local ni = n[i] - num[i] = format("U+%04X",ni) - nam[i] = descriptions[ni].name or "?" - end - return format("%s (%s)",concat(num," "), concat(nam," ")) - else - return "?" - end -end - -local function cref(kind,lookupname) - if lookupname then - return format("feature %s, lookup %s",kind,lookupname) - else - return format("feature %s",kind) - end -end - -local function resolve_ligatures(tfmdata,ligatures,kind) - kind = kind or "unknown" - local unicodes = tfmdata.unicodes - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local changed = tfmdata.changed - local done = { } - while true do - local ok = false - for k,v in next, ligatures do - local lig = v[1] - if not done[lig] then - local ligs = lpegmatch(split_at_space,lig) - if #ligs == 2 then - local uc = v[2] - local c, f, s = characters[uc], ligs[1], ligs[2] - local uft, ust = unicodes[f] or 0, unicodes[s] or 0 - if not uft or not ust then - logs.report("define otf","%s: unicode problem with base ligature %s = %s + %s",cref(kind),gref(descriptions,uc),gref(descriptions,uft),gref(descriptions,ust)) - -- some kind of error - else - if type(uft) == "number" then uft = { uft } end - if type(ust) == "number" then ust = { ust } end - for ufi=1,#uft do - local uf = uft[ufi] - for usi=1,#ust do - local us = ust[usi] - if changed[uf] or changed[us] then - if trace_baseinit and trace_ligatures then - logs.report("define otf","%s: base ligature %s + %s ignored",cref(kind),gref(descriptions,uf),gref(descriptions,us)) - end - else - local first, second = characters[uf], us - if first and second then - local t = first.ligatures - if not t then - t = { } - first.ligatures = t - end - if type(uc) == "number" then - t[second] = { type = 0, char = uc } - else - t[second] = { type = 0, char = uc[1] } -- can this still happen? - end - if trace_baseinit and trace_ligatures then - logs.report("define otf","%s: base ligature %s + %s => %s",cref(kind),gref(descriptions,uf),gref(descriptions,us),gref(descriptions,uc)) - end - end - end - end - end - end - ok, done[lig] = true, descriptions[uc].name - end - end - end - if ok then - -- done has "a b c" = "a_b_c" and ligatures the already set ligatures: "a b" = 123 - -- and here we add extras (f i i = fi + i and alike) - -- - -- we could use a hash for fnc and pattern - -- - -- this might be interfering ! - for d,n in next, done do - local pattern = pcache[d] if not pattern then pattern = "^(" .. d .. ") " pcache[d] = pattern end - local fnc = fcache[n] if not fnc then fnc = function() return n .. " " end fcache[n] = fnc end - for k,v in next, ligatures do - v[1] = gsub(v[1],pattern,fnc) - end - end - else - break - end - end -end - -local splitter = lpeg.splitat(" ") - -function prepare_base_substitutions(tfmdata,kind,value) -- we can share some code with the node features - if value then - local otfdata = tfmdata.shared.otfdata - local validlookups, lookuplist = otf.collect_lookups(otfdata,kind,tfmdata.script,tfmdata.language) - if validlookups then - local ligatures = { } - local unicodes = tfmdata.unicodes -- names to unicodes - local indices = tfmdata.indices - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local changed = tfmdata.changed - -- - local actions = { - substitution = function(p,lookup,k,glyph,unicode) - local pv = p[2] -- p.variant - if pv then - local upv = unicodes[pv] - if upv then - if type(upv) == "table" then - upv = upv[1] - end - if characters[upv] then - if trace_baseinit and trace_singles then - logs.report("define otf","%s: base substitution %s => %s",cref(kind,lookup),gref(descriptions,k),gref(descriptions,upv)) - end - changed[k] = upv - end - end - end - end, - alternate = function(p,lookup,k,glyph,unicode) - local pc = p[2] -- p.components - if pc then - -- a bit optimized ugliness - if value == 1 then - pc = lpegmatch(splitter,pc) - elseif value == 2 then - local a, b = lpegmatch(splitter,pc) - pc = b or a - else - pc = { lpegmatch(splitter,pc) } - pc = pc[value] or pc[#pc] - end - if pc then - local upc = unicodes[pc] - if upc then - if type(upc) == "table" then - upc = upc[1] - end - if characters[upc] then - if trace_baseinit and trace_alternatives then - logs.report("define otf","%s: base alternate %s %s => %s",cref(kind,lookup),tostring(value),gref(descriptions,k),gref(descriptions,upc)) - end - changed[k] = upc - end - end - end - end - end, - ligature = function(p,lookup,k,glyph,unicode) - local pc = p[2] - if pc then - if trace_baseinit and trace_ligatures then - local upc = { lpegmatch(splitter,pc) } - for i=1,#upc do upc[i] = unicodes[upc[i]] end - -- we assume that it's no table - logs.report("define otf","%s: base ligature %s => %s",cref(kind,lookup),gref(descriptions,upc),gref(descriptions,k)) - end - ligatures[#ligatures+1] = { pc, k } - end - end, - } - -- - for k,c in next, characters do - local glyph = descriptions[k] - local lookups = glyph.slookups - if lookups then - for l=1,#lookuplist do - local lookup = lookuplist[l] - local p = lookups[lookup] - if p then - local a = actions[p[1]] - if a then - a(p,lookup,k,glyph,unicode) - end - end - end - end - local lookups = glyph.mlookups - if lookups then - for l=1,#lookuplist do - local lookup = lookuplist[l] - local ps = lookups[lookup] - if ps then - for i=1,#ps do - local p = ps[i] - local a = actions[p[1]] - if a then - a(p,lookup,k,glyph,unicode) - end - end - end - end - end - end - resolve_ligatures(tfmdata,ligatures,kind) - end - else - tfmdata.ligatures = tfmdata.ligatures or { } -- left over from what ? - end -end - -local function prepare_base_kerns(tfmdata,kind,value) -- todo what kind of kerns, currently all - if value then - local otfdata = tfmdata.shared.otfdata - local validlookups, lookuplist = otf.collect_lookups(otfdata,kind,tfmdata.script,tfmdata.language) - if validlookups then - local unicodes = tfmdata.unicodes -- names to unicodes - local indices = tfmdata.indices - local characters = tfmdata.characters - local descriptions = tfmdata.descriptions - local sharedkerns = { } - for u, chr in next, characters do - local d = descriptions[u] - if d then - local dk = d.mykerns -- shared - if dk then - local s = sharedkerns[dk] - if s == false then - -- skip - elseif s then - chr.kerns = s - else - local t, done = chr.kerns or { }, false - for l=1,#lookuplist do - local lookup = lookuplist[l] - local kerns = dk[lookup] - if kerns then - for k, v in next, kerns do - if v ~= 0 and not t[k] then -- maybe no 0 test here - t[k], done = v, true - if trace_baseinit and trace_kerns then - logs.report("define otf","%s: base kern %s + %s => %s",cref(kind,lookup),gref(descriptions,u),gref(descriptions,k),v) - end - end - end - end - end - if done then - sharedkerns[dk] = t - chr.kerns = t -- no empty assignments - else - sharedkerns[dk] = false - end - end - end - end - end - end - end -end - --- In principle we could register each feature individually which was --- what we did in earlier versions. However, after the rewrite it --- made more sense to collect them in an overall features initializer --- just as with the node variant. There it was needed because we need --- to do complete mixed runs and not run featurewise (as we did before). - -local supported_gsub = { - 'liga', 'dlig', 'rlig', 'hlig', - 'pnum', 'onum', 'tnum', 'lnum', - 'zero', - 'smcp', 'cpsp', 'c2sc', 'ornm', 'aalt', - 'hwid', 'fwid', - 'ssty', 'rtlm', -- math --- 'tlig', 'trep', -} - -local supported_gpos = { - 'kern' -} - -function otf.features.register_base_substitution(tag) - supported_gsub[#supported_gsub+1] = tag -end -function otf.features.register_base_kern(tag) - supported_gsub[#supported_gpos+1] = tag -end - -local basehash, basehashes = { }, 1 - -function fonts.initializers.base.otf.features(tfmdata,value) - if true then -- value then - -- not shared - local t = trace_preparing and os.clock() - local features = tfmdata.shared.features - if features then - local h = { } - for f=1,#supported_gsub do - local feature = supported_gsub[f] - local value = features[feature] - prepare_base_substitutions(tfmdata,feature,value) - if value then - h[#h+1] = feature .. "=" .. tostring(value) - end - end - for f=1,#supported_gpos do - local feature = supported_gpos[f] - local value = features[feature] - prepare_base_kerns(tfmdata,feature,features[feature]) - if value then - h[#h+1] = feature .. "=" .. tostring(value) - end - end - local hash = concat(h," ") - local base = basehash[hash] - if not base then - basehashes = basehashes + 1 - base = basehashes - basehash[hash] = base - 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. - tfmdata.fullname = tfmdata.fullname .. "-" .. base -- tfmdata.psname is the original - --~ logs.report("otf define","fullname base hash: '%s', featureset '%s'",tfmdata.fullname,hash) - end - if trace_preparing then - logs.report("otf define","preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.fullname or "?") - end - end -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" -} - --- 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. - --- some day when we can jit this, we can use more functions - --- we can use more lpegs when lpeg is extended with function args and so --- resolving to unicode does not gain much - --- 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 --- remove unused tables --- slide tail (always glue at the end so only needed once --- default features (per language, script) --- cleanup kern(class) code, remove double info --- handle positions (we need example fonts) --- handle gpos_single (we might want an extra width field in glyph nodes because adding kerns might interfere) - ---[[ldx-- -<p>This module is a bit more split up that I'd like but since we also want to test -with plain <l n='tex'/> it has to be so. This module is part of <l n='context'/> -and discussion about improvements and functionality mostly happens on the -<l n='context'/> mailing list.</p> - -<p>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.</p> - -<p>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.</p> - -<p>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 <l n='context'/> users ask for it.</p> - -<p>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.</p> - -<p>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 -<l n='tex'/> 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 <l n='tex'/> has to include -then in the output eventually.</p> - -<p>The raw table as it coms from <l n='fontforge'/> gets reorganized in to fit out needs. -In <l n='context'/> 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).</p> - -<p>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.</p> - -<p>As with the <l n='afm'/> code, we may decide to store more information in the -<l n='otf'/> table.</p> - -<p>Incrementing the version number will force a re-cache. We jump the number by one -when there's a fix in the <l n='fontforge'/> library or <l n='lua'/> code that -results in different tables.</p> ---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 -- --- --- 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 - -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 otf = fonts.otf -local tfm = fonts.tfm - -local trace_lookups = false trackers.register("otf.lookups", function(v) trace_lookups = 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_contexts = false trackers.register("otf.contexts", function(v) trace_contexts = v end) -local trace_marks = false trackers.register("otf.marks", function(v) trace_marks = v end) -local trace_kerns = false trackers.register("otf.kerns", function(v) trace_kerns = v end) -local trace_cursive = false trackers.register("otf.cursive", function(v) trace_cursive = v end) -local trace_preparing = false trackers.register("otf.preparing", function(v) trace_preparing = v end) -local trace_bugs = false trackers.register("otf.bugs", function(v) trace_bugs = v end) -local trace_details = false trackers.register("otf.details", function(v) trace_details = v end) -local trace_applied = false trackers.register("otf.applied", function(v) trace_applied = v end) -local trace_steps = false trackers.register("otf.steps", function(v) trace_steps = v end) -local trace_skips = false trackers.register("otf.skips", function(v) trace_skips = v end) -local trace_directions = false trackers.register("otf.directions", function(v) trace_directions = v end) - -trackers.register("otf.verbose_chain", function(v) otf.setcontextchain(v and "verbose") end) -trackers.register("otf.normal_chain", function(v) otf.setcontextchain(v and "normal") end) - -trackers.register("otf.replacements", "otf.singles,otf.multiples,otf.alternatives,otf.ligatures") -trackers.register("otf.positions","otf.marks,otf.kerns,otf.cursive") -trackers.register("otf.actions","otf.replacements,otf.positions") -trackers.register("otf.injections","nodes.injections") - -trackers.register("*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 set_attribute = node.set_attribute -local has_attribute = node.has_attribute - -local zwnj = 0x200C -local zwj = 0x200D -local wildcard = "*" -local default = "dflt" - -local split_at_space = lpeg.Ct(lpeg.splitat(" ")) -- no trailing or multiple spaces anyway - -local glyph = node.id('glyph') -local glue = node.id('glue') -local kern = node.id('kern') -local disc = node.id('disc') -local whatsit = node.id('whatsit') - -local state = attributes.private('state') -local markbase = attributes.private('markbase') -local markmark = attributes.private('markmark') -local markdone = attributes.private('markdone') -local cursbase = attributes.private('cursbase') -local curscurs = attributes.private('curscurs') -local cursdone = attributes.private('cursdone') -local kernpair = attributes.private('kernpair') - -local set_mark = nodes.set_mark -local set_cursive = nodes.set_cursive -local set_kern = nodes.set_kern -local set_pair = nodes.set_pair - -local markonce = true -local cursonce = true -local kernonce = true - -local fontdata = fonts.ids - -otf.features.process = { } - --- we share some vars here, after all, we have no nested lookups and --- less code - -local tfmdata = false -local otfdata = false -local characters = false -local descriptions = false -local marks = false -local indices = false -local unicodes = false -local currentfont = false -local lookuptable = false -local anchorlookups = false -local handlers = { } -local rlmode = 0 -local featurevalue = false - --- we cheat a bit and assume that a font,attr combination are kind of ranged - -local context_setups = fonts.define.specify.context_setups -local context_numbers = fonts.define.specify.context_numbers -local context_merged = fonts.define.specify.context_merged - --- we cannot optimize with "start = first_character(head)" because then we don't --- know which rlmode we're in which messes up cursive handling later on --- --- head is always a whatsit so we can safely assume that head is not changed - -local special_attributes = { - init = 1, - medi = 2, - fina = 3, - isol = 4 -} - --- 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 function logprocess(...) - if trace_steps then - registermessage(...) - end - logs.report("otf direct",...) -end -local function logwarning(...) - logs.report("otf 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+%04X (%s)",n,name) - else - return format("U+%04X",n) - end - elseif not n then - return "<error in tracing>" - else - local num, nam = { }, { } - for i=1,#n do - local ni = n[i] - num[#num+1] = format("U+%04X",ni) - local dni = descriptions[ni] - nam[#num] = (dni and dni.name) or "?" - 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 -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 - -local function markstoligature(kind,lookupname,start,stop,char) - local n = copy_node(start) - local keep = start - local current - current, start = insert_node_after(start,start,n) - local snext = stop.next - current.next = snext - if snext then - snext.prev = current - end - start.prev, stop.next = nil, nil - current.char, current.subtype, current.components = char, 2, start - return keep -end - -local function toligature(kind,lookupname,start,stop,char,markflag,discfound) -- brr head - if start ~= stop then ---~ if discfound then ---~ local lignode = copy_node(start) ---~ lignode.font = start.font ---~ lignode.char = char ---~ lignode.subtype = 2 ---~ start = node.do_ligature_n(start, stop, lignode) ---~ if start.id == disc then ---~ local prev = start.prev ---~ start = start.next ---~ end - if discfound then - -- print("start->stop",nodes.tosequence(start,stop)) - local lignode = copy_node(start) - lignode.font, lignode.char, lignode.subtype = start.font, char, 2 - local next, prev = stop.next, start.prev - stop.next = nil - lignode = node.do_ligature_n(start, stop, lignode) - prev.next = lignode - if next then - next.prev = lignode - end - lignode.next, lignode.prev = next, prev - start = lignode - -- print("start->end",nodes.tosequence(start)) - else -- start is the ligature - local deletemarks = markflag ~= "mark" - local n = copy_node(start) - local current - current, start = insert_node_after(start,start,n) - local snext = stop.next - current.next = snext - if snext then - snext.prev = current - end - start.prev, stop.next = nil, nil - current.char, current.subtype, current.components = char, 2, start - local head = current - if deletemarks then - if trace_marks then - while start do - if marks[start.char] then - logwarning("%s: remove mark %s",pref(kind,lookupname),gref(start.char)) - end - start = start.next - end - end - else - local i = 0 - while start do - if marks[start.char] then - set_attribute(start,markdone,i) - if trace_marks then - logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(start.char),i) - end - head, current = insert_node_after(head,current,copy_node(start)) - else - i = i + 1 - end - start = start.next - end - start = current.next - while start and start.id == glyph do - if marks[start.char] then - set_attribute(start,markdone,i) - if trace_marks then - logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(start.char),i) - end - else - break - end - start = start.next - end - end - return head - end - else - start.char = char - end - return start -end - -function handlers.gsub_single(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 start, true -end - -local function alternative_glyph(start,alternatives,kind,chainname,chainlookupname,lookupname) -- chainname and chainlookupname optional - local value, choice, n = featurevalue or tfmdata.shared.features[kind], nil, #alternatives -- global value, brrr - if value == "random" then - local r = math.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 - value, choice = format("no %s variants, taking %s",value,n), alternatives[n] - elseif value == 0 then - value, choice = format("choice %s (no change)",value), start.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 - if not choice then - logwarning("%s: no variant %s for %s",cref(kind,chainname,chainlookupname,lookupname),value,gref(start.char)) - choice, value = start.char, format("no replacement instead of %s",value) - end - return choice, value -end - -function handlers.gsub_alternate(start,kind,lookupname,alternative,sequence) - local choice, index = alternative_glyph(start,alternative,kind,lookupname) - if trace_alternatives then - logprocess("%s: replacing %s by alternative %s (%s)",pref(kind,lookupname),gref(start.char),gref(choice),index) - end - start.char = choice - return start, true -end - -function handlers.gsub_multiple(start,kind,lookupname,multiple) - if trace_multiples then - logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple)) - end - start.char = multiple[1] - if #multiple > 1 then - for k=2,#multiple do - local n = copy_node(start) - n.char = multiple[k] - local sn = start.next - n.next = sn - n.prev = start - if sn then - sn.prev = n - end - start.next = n - start = n - end - end - return start, true -end - -function handlers.gsub_ligature(start,kind,lookupname,ligature,sequence) --or maybe pass lookup ref - 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 and s.subtype<256 then - if s.font == currentfont then - local char = s.char - local lg = ligature[1][char] - if not lg then - break - else - stop = s - ligature = lg - s = s.next - end - else - break - end - else - break - end - end - if stop and ligature[2] then - if trace_ligatures then - local stopchar = stop.char - start = markstoligature(kind,lookupname,start,stop,ligature[2]) - 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,ligature[2]) - end - return start, true - end - else - local skipmark = sequence.flags[1] - while s do - local id = s.id - if id == glyph 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[1][char] - if not lg then - break - else - stop = s - ligature = lg - s = s.next - end - end - else - break - end - elseif id == disc then - discfound = true - s = s.next - else - break - end - end - if stop and ligature[2] then - if trace_ligatures then - local stopchar = stop.char - start = toligature(kind,lookupname,start,stop,ligature[2],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,ligature[2],skipmark,discfound) - end - return start, true - end - end - return start, false -end - ---[[ldx-- -<p>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.</p> ---ldx]]-- - -function handlers.gpos_mark2base(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 and base.subtype<256 and base.font == currentfont then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph and base.subtype<256 and base.font == currentfont 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 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 = set_mark(start,base,tfmdata.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 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 - end - else -- if trace_bugs then - -- logwarning("%s: char %s is missing in font",pref(kind,lookupname),gref(basechar)) - fonts.register_message(currentfont,basechar,"no base anchors") - end - elseif trace_bugs then - logwarning("%s: prev node is no char",pref(kind,lookupname)) - end - elseif trace_bugs then - logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) - end - return start, false -end - -function handlers.gpos_mark2ligature(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] - local index = 1 - if base and base.id == glyph and base.subtype<256 and base.font == currentfont then - local basechar = base.char - if marks[basechar] then - index = index + 1 - while true do - base = base.prev - if base and base.id == glyph and base.subtype<256 and base.font == currentfont then - basechar = base.char - if marks[basechar] then - index = index + 1 - else - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar)) - end - return start, false - end - end - end - local i = has_attribute(start,markdone) - if i then index = i end - 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 = set_mark(start,base,tfmdata.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 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)) - fonts.register_message(currentfont,basechar,"no base anchors") - end - elseif trace_bugs then - logwarning("%s: prev node is no char",pref(kind,lookupname)) - end - elseif trace_bugs then - logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar)) - end - return start, false -end - -function handlers.gpos_mark2mark(start,kind,lookupname,markanchors,sequence) - local markchar = start.char - if marks[markchar] then ---~ local alreadydone = markonce and has_attribute(start,markmark) ---~ if not alreadydone then - local base = start.prev -- [glyph] [basemark] [start=mark] - if base and base.id == glyph and base.subtype<256 and base.font == currentfont 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 = set_mark(start,base,tfmdata.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 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)) - fonts.register_message(currentfont,basechar,"no base anchors") - end - elseif trace_bugs then - logwarning("%s: prev node is no mark",pref(kind,lookupname)) - 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",pref(kind,lookupname),gref(markchar)) - end - return start,false -end - -function handlers.gpos_cursive(start,kind,lookupname,exitanchors,sequence) -- to be checked - local alreadydone = cursonce and has_attribute(start,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 and nxt.subtype<256 and nxt.font == currentfont 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 = set_cursive(start,nxt,tfmdata.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)) - fonts.register_message(currentfont,startchar,"no entry anchors") - end - break - end - end - end - return 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 start, false - end -end - -function handlers.gpos_single(start,kind,lookupname,kerns,sequence) - local startchar = start.char - local dx, dy, w, h = set_pair(start,tfmdata.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 start, false -end - -function handlers.gpos_pair(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 start, false - else - local prev, done = start, false - local factor = tfmdata.factor - while snext and snext.id == glyph and snext.subtype<256 and snext.font == currentfont 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 krn[1] == "pair" then - local a, b = krn[3], krn[4] - if a and #a > 0 then - local startchar = start.char - local x, y, w, h = set_pair(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 = set_pair(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 - logs.report("%s: check this out (old kern stuff)",pref(kind,lookupname)) - local a, b = krn[3], krn[7] - if a and a ~= 0 then - local k = set_kern(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 = set_kern(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 start, done - end -end - ---[[ldx-- -<p>I will implement multiple chain replacements once I run into a font that uses -it. It's not that complex to handle.</p> ---ldx]]-- - -local chainmores = { } -local chainprocs = { } - -local function logprocess(...) - if trace_steps then - registermessage(...) - end - logs.report("otf subchain",...) -end -local function logwarning(...) - logs.report("otf subchain",...) -end - --- ['coverage']={ --- ['after']={ "r" }, --- ['before']={ "q" }, --- ['current']={ "a", "b", "c" }, --- }, --- ['lookups']={ "ls_l_1", "ls_l_1", "ls_l_1" }, - -function chainmores.chainsub(start,stop,kind,chainname,currentcontext,cache,lookuplist,chainlookupname,n) - logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) - return start, false -end - --- handled later: --- --- function chainmores.gsub_single(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) --- return chainprocs.gsub_single(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) --- end - -function chainmores.gsub_multiple(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) - logprocess("%s: gsub_multiple not yet supported",cref(kind,chainname,chainlookupname)) - return start, false -end -function chainmores.gsub_alternate(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) - logprocess("%s: gsub_alternate not yet supported",cref(kind,chainname,chainlookupname)) - return start, false -end - --- handled later: --- --- function chainmores.gsub_ligature(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) --- return chainprocs.gsub_ligature(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,n) --- end - -local function logprocess(...) - if trace_steps then - registermessage(...) - end - logs.report("otf chain",...) -end -local function logwarning(...) - logs.report("otf chain",...) -end - --- We could share functions but that would lead to extra function calls with many --- arguments, redundant tests and confusing messages. - -function chainprocs.chainsub(start,stop,kind,chainname,currentcontext,cache,lookuplist,chainlookupname) - logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname)) - return 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(start,stop,kind,chainname,currentcontext,cache,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 start, true - else - return start, false - end -end - ---[[ldx-- -<p>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:</p> - -<typing> -<line>xxxabcdexxx [single a->A][multiple b->BCD][ligature cde->E] xxxABCDExxx</line> -</typing> - -<p>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 mke the code even more messy.</p> ---ldx]]-- - -local function delete_till_stop(start,stop,ignoremarks) - if start ~= stop then - -- todo keep marks - local done = false - while not done do - done = start == stop - delete_node(start,start.next) - end - end -end - ---[[ldx-- -<p>Here we replace start by a single variant, First we delete the rest of the -match.</p> ---ldx]]-- - -function chainprocs.gsub_single(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,chainindex) - -- todo: marks ? - if not chainindex then - delete_till_stop(start,stop) -- ,currentlookup.flags[1]) - end - local current = start - local subtables = currentlookup.subtables - while current do - if current.id == glyph then - local currentchar = current.char - local lookupname = subtables[1] - local replacement = cache.gsub_single[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 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 start, true - elseif current == stop then - break - else - current = current.next - end - end - return start, false -end - -chainmores.gsub_single = chainprocs.gsub_single - ---[[ldx-- -<p>Here we replace start by a sequence of new glyphs. First we delete the rest of -the match.</p> ---ldx]]-- - -function chainprocs.gsub_multiple(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname) - delete_till_stop(start,stop) - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local replacements = cache.gsub_multiple[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 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 - local sn = start.next - for k=1,#replacements do - if k == 1 then - start.char = replacements[k] - else - local n = copy_node(start) -- maybe delete the components and such - n.char = replacements[k] - n.next, n.prev = sn, start - if sn then - sn.prev = n - end - start.next, start = n, n - end - end - return start, true - end - end - return start, false -end - ---[[ldx-- -<p>Here we replace start by new glyph. First we delete the rest of the match.</p> ---ldx]]-- - -function chainprocs.gsub_alternate(start,stop,kind,lookupname,currentcontext,cache,currentlookup) - -- todo: marks ? - delete_till_stop(start,stop) - local current = start - local subtables = currentlookup.subtables - while current do - if current.id == glyph then - local currentchar = current.char - local lookupname = subtables[1] - local alternatives = cache.gsub_alternate[lookupname] - if not alternatives then - if trace_bugs then - logwarning("%s: no alternative hits",cref(kind,chainname,chainlookupname,lookupname)) - end - else - alternatives = alternatives[currentchar] - if not alternatives then - if trace_bugs then - logwarning("%s: no alternative for %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar)) - end - else - local choice, index = alternative_glyph(current,alternatives,kind,chainname,chainlookupname,lookupname) - current.char = choice - if trace_alternatives then - logprocess("%s: replacing single %s by alternative %s (%s)",cref(kind,chainname,chainlookupname,lookupname),index,gref(currentchar),gref(choice),index) - end - end - end - return start, true - elseif current == stop then - break - else - current = current.next - end - end - return start, false -end - ---[[ldx-- -<p>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).</p> ---ldx]]-- - -function chainprocs.gsub_ligature(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,chainindex) - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local ligatures = cache.gsub_ligature[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 ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar)) - end - else - local s, discfound, last, nofreplacements = start.next, false, stop, 0 - while s do - local id = s.id - if id == disc then - s = s.next - discfound = true - else - local schar = s.char - if marks[schar] then -- marks - s = s.next - else - local lg = ligatures[1][schar] - if not lg then - break - else - ligatures, last, nofreplacements = lg, s, nofreplacements + 1 - if s == stop then - break - else - s = s.next - end - end - end - end - end - local l2 = ligatures[2] - 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,lookup,start,stop,l2,currentlookup.flags[1],discfound) - return 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 - end - end - return start, false, 0 -end - -chainmores.gsub_ligature = chainprocs.gsub_ligature - -function chainprocs.gpos_mark2base(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local markanchors = cache.gpos_mark2base[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [start=mark] - if base and base.id == glyph and base.subtype<256 and base.font == currentfont then - local basechar = base.char - if marks[basechar] then - while true do - base = base.prev - if base and base.id == glyph and base.subtype<256 and base.font == currentfont 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 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 = set_mark(start,base,tfmdata.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 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 - 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 start, false -end - -function chainprocs.gpos_mark2ligature(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local markanchors = cache.gpos_mark2ligature[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [optional marks] [start=mark] - local index = 1 - if base and base.id == glyph and base.subtype<256 and base.font == currentfont then - local basechar = base.char - if marks[basechar] then - index = index + 1 - while true do - base = base.prev - if base and base.id == glyph and base.subtype<256 and base.font == currentfont then - basechar = base.char - if marks[basechar] then - index = index + 1 - else - break - end - else - if trace_bugs then - logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar) - end - return start, false - end - end - end - -- todo: like marks a ligatures hash - local i = has_attribute(start,markdone) - if i then index = i end - 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 = set_mark(start,base,tfmdata.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 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) - 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 start, false -end - -function chainprocs.gpos_mark2mark(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname) - local markchar = start.char - if marks[markchar] then ---~ local alreadydone = markonce and has_attribute(start,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 = cache.gpos_mark2mark[lookupname] - if markanchors then - markanchors = markanchors[markchar] - end - if markanchors then - local base = start.prev -- [glyph] [basemark] [start=mark] - if base and base.id == glyph and base.subtype<256 and base.font == currentfont 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 = set_mark(start,base,tfmdata.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 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_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 start, false -end - --- ! ! ! untested ! ! ! - -function chainprocs.gpos_cursive(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname) - local alreadydone = cursonce and has_attribute(start,cursbase) - if not alreadydone then - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local exitanchors = cache.gpos_cursive[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 and nxt.subtype<256 and nxt.font == currentfont 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 = set_cursive(start,nxt,tfmdata.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)) - fonts.register_message(currentfont,startchar,"no entry anchors") - end - break - end - end - end - return 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 start, false - end - end - return start, false -end - -function chainprocs.gpos_single(start,stop,kind,chainname,currentcontext,cache,currentlookup,chainlookupname,chainindex,sequence) - -- untested - local startchar = start.char - local subtables = currentlookup.subtables - local lookupname = subtables[1] - local kerns = cache.gpos_single[lookupname] - if kerns then - kerns = kerns[startchar] - if kerns then - local dx, dy, w, h = set_pair(start,tfmdata.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 - end - return start, false -end - --- when machines become faster i will make a shared function - -function chainprocs.gpos_pair(start,stop,kind,chainname,currentcontext,cache,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 = cache.gpos_pair[lookupname] - if kerns then - kerns = kerns[startchar] - if kerns then - local prev, done = start, false - local factor = tfmdata.factor - while snext and snext.id == glyph and snext.subtype<256 and snext.font == currentfont 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 krn[1] == "pair" then - local a, b = krn[3], krn[4] - if a and #a > 0 then - local startchar = start.char - local x, y, w, h = set_pair(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 = set_pair(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 - logs.report("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname)) - local a, b = krn[3], krn[7] - if a and a ~= 0 then - local k = set_kern(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 = set_kern(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 start, done - end - end - end - return 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 -end - -local function normal_handle_contextchain(start,kind,chainname,contexts,sequence,cache) - -- local rule, lookuptype, sequence, f, l, lookups = ck[1], ck[2] ,ck[3], ck[4], ck[5], ck[6] - local flags, done = sequence.flags, false - local skipmark, skipligature, skipbase = flags[1], flags[2], 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 - for k=1,#contexts do - local match, current, last = true, start, 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 and current.subtype<256 and current.font == currentfont and seq[1][current.char] - else - -- todo: better space check (maybe check for glue) - local f, l = ck[4], ck[5] - if f == l then - -- already a hit - match = true - else - -- no need to test first hit (to be optimized) - local n = f + 1 - last = last.next - -- we cannot optimize for n=2 because there can be disc nodes - -- if not someskip and n == l then - -- -- n=2 and no skips then faster loop - -- match = last and last.id == glyph and last.subtype<256 and last.font == currentfont and seq[n][last.char] - -- else - while n <= l do - if last then - local id = last.id - if id == glyph then - if last.subtype<256 and last.font == currentfont 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 - 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 then -- what to do with kerns? - last = last.next - else - match = false break - end - else - match = false break - end - end - -- end - end - if match and f > 1 then - -- before - 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 then - if prev.subtype<256 and prev.font == currentfont 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 - 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 then - -- skip 'm - 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 - 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 - -- after - local current = 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 then - if current.subtype<256 and current.font == currentfont 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 - 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 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 - 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 - -- 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]) - 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 - -- we can speed this up if needed - if nofchainlookups == 1 then - local chainlookupname = chainlookups[1] - local chainlookup = lookuptable[chainlookupname] - local cp = chainprocs[chainlookup.type] - if cp then - start, done = cp(start,last,kind,chainname,ck,cache,chainlookup,chainlookupname,nil,sequence) - else - logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type) - end - else - -- actually this needs a more complex treatment for which we will use chainmores - local i = 1 - repeat - local chainlookupname = chainlookups[i] - local chainlookup = lookuptable[chainlookupname] - local cp = chainmores[chainlookup.type] - if cp then - local ok, n - start, ok, n = cp(start,last,kind,chainname,ck,cache,chainlookup,chainlookupname,i,sequence) - -- messy since last can be changed ! - if ok then - done = true - start = start.next - if n then - -- skip next one(s) if ligature - i = i + n - 1 - end - end - else - logprocess("%s: multiple subchains for %s are not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type) - end - i = i + 1 - until i > nofchainlookups - end - else - local replacements = ck[7] - if replacements then - start, done = chainprocs.reversesub(start,last,kind,chainname,ck,cache,replacements) -- sequence - else - done = true -- can be meant to be skipped - if trace_contexts then - logprocess("%s: skipping match",cref(kind,chainname)) - end - end - end - end - end - return 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(...) -end - -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 -end - -otf.setcontextchain() - -local missing = { } -- we only report once - -local function logprocess(...) - if trace_steps then - registermessage(...) - end - logs.report("otf process",...) -end -local function logwarning(...) - logs.report("otf process",...) -end - -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.fullname) - end -end - -local resolved = { } -- we only resolve a font,script,language pair once - --- todo: pass all these 'locals' in a table - --- maybe some day i'll make an alternative that works on 'sub direction runs' which might be --- more efficient for arabic but it has quite some consequences - -function fonts.methods.node.otf.features(head,font,attr) - if trace_steps then - checkstep(head) - end - tfmdata = fontdata[font] - local shared = tfmdata.shared - otfdata = shared.otfdata - local luatex = otfdata.luatex - descriptions = tfmdata.descriptions - characters = tfmdata.characters - indices = tfmdata.indices - unicodes = tfmdata.unicodes - marks = tfmdata.marks - anchorlookups = luatex.lookup_to_anchor - currentfont = font - rlmode = 0 - local featuredata = otfdata.shared.featuredata -- can be made local to closure - local sequences = luatex.sequences - lookuptable = luatex.lookups - local done = false - local script, language, s_enabled, a_enabled, dyn - local attribute_driven = attr and attr ~= 0 - if attribute_driven then - local features = context_setups[context_numbers[attr]] -- could be a direct list - dyn = context_merged[attr] or 0 - language, script = features.language or "dflt", features.script or "dflt" - a_enabled = features -- shared.features -- can be made local to the resolver - if dyn == 2 or dyn == -2 then - -- font based - s_enabled = shared.features - end - else - language, script = tfmdata.language or "dflt", tfmdata.script or "dflt" - s_enabled = shared.features -- can be made local to the resolver - dyn = 0 - end - -- we can save some runtime by caching feature tests - 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 end - local ra = rl [attr] if ra == nil then ra = { } rl [attr] = ra end -- attr can be false - -- sequences always > 1 so no need for optimization - for s=1,#sequences do - local pardir, txtdir = 0, { } - local success = false - local sequence = sequences[s] - local r = ra[s] -- cache - if r == nil then - -- - -- this bit will move to font-ctx and become a function - --- - local chain = sequence.chain or 0 - local features = sequence.features - if not features then - -- indirect lookup, part of chain (todo: make this a separate table) - r = false -- { false, false, chain } - else - local valid, attribute, kind, what = false, false - for k,v in next, features do - -- we can quit earlier but for the moment we want the tracing - local s_e = s_enabled and s_enabled[k] - local a_e = a_enabled and a_enabled[k] - if s_e or a_e then - local l = v[script] or v[wildcard] - if l then - -- not l[language] or l[default] or l[wildcard] because we want tracing - -- only first attribute match check, so we assume simple fina's - -- default can become a font feature itself - if l[language] then - valid, what = s_e or a_e, language - -- elseif l[default] then - -- valid, what = true, default - elseif l[wildcard] then - valid, what = s_e or a_e, wildcard - end - if valid then - kind, attribute = k, special_attributes[k] or false - if a_e and dyn < 0 then - valid = false - end - if trace_applied then - local typ, action = match(sequence.type,"(.*)_(.*)") - logs.report("otf node mode", - "%s font: %03i, dynamic: %03i, kind: %s, lookup: %3i, script: %-4s, language: %-4s (%-4s), type: %s, action: %s, name: %s", - (valid and "+") or "-",font,attr or 0,kind,s,script,language,what,typ,action,sequence.name) - end - break - end - end - end - end - if valid then - r = { valid, attribute, chain, kind } - else - r = false -- { valid, attribute, chain, "generic" } -- false anyway, could be flag instead of table - end - end - ra[s] = r - end - featurevalue = r and r[1] -- todo: pass to function instead of using a global - if featurevalue then - local attribute, chain, typ, subtables = r[2], r[3], sequence.type, sequence.subtables - if chain < 0 then - -- this is a limited case, no special treatments like 'init' etc - local handler = handlers[typ] - local thecache = featuredata[typ] or { } - -- we need to get rid of this slide ! - 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 then ---~ if start.subtype<256 and start.font == font and (not attr or has_attribute(start,0,attr)) then - if start.subtype<256 and start.font == font and has_attribute(start,0,attr) then - for i=1,#subtables do - local lookupname = subtables[i] - local lookupcache = thecache[lookupname] - if lookupcache then - local lookupmatch = lookupcache[start.char] - if lookupmatch then - start, success = handler(start,r[4],lookupname,lookupmatch,sequence,featuredata,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 - end - else - local handler = handlers[typ] - local ns = #subtables - local thecache = featuredata[typ] or { } - start = head -- local ? - rlmode = 0 -- to be checked ? - if ns == 1 then - local lookupname = subtables[1] - local lookupcache = thecache[lookupname] - if not lookupcache then - report_missing_cache(typ,lookupname) - else - while start do - local id = start.id - if id == glyph then - if start.font == font and start.subtype<256 and has_attribute(start,0,attr) and (not attribute or has_attribute(start,state,attribute)) then - local lookupmatch = lookupcache[start.char] - if lookupmatch then - -- sequence kan weg - local ok - start, ok = handler(start,r[4],lookupname,lookupmatch,sequence,featuredata,1) - if ok then - success = true - end - end - if start then start = start.next end - else - start = start.next - end - -- elseif id == glue 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 - elseif id == whatsit then - local subtype = start.subtype - if subtype == 7 then - local dir = start.dir - if dir == "+TRT" or dir == "+TLT" then - insert(txtdir,dir) - elseif dir == "-TRT" or dir == "-TLT" then - remove(txtdir) - end - local d = txtdir[#txtdir] - if d == "+TRT" then - rlmode = -1 - elseif d == "+TLT" then - rlmode = 1 - else - rlmode = pardir - end - if trace_directions then - logs.report("fonts","directions after textdir %s: pardir=%s, txtdir=%s:%s, rlmode=%s",dir,pardir,#txtdir,txtdir[#txtdir] or "unset",rlmode) - end - elseif subtype == 6 then - local dir = start.dir - if dir == "TRT" then - pardir = -1 - elseif dir == "TLT" then - pardir = 1 - else - pardir = 0 - end - rlmode = pardir - --~ txtdir = { } - if trace_directions then - logs.report("fonts","directions after pardir %s: pardir=%s, txtdir=%s:%s, rlmode=%s",dir,pardir,#txtdir,txtdir[#txtdir] or "unset",rlmode) - end - end - start = start.next - else - start = start.next - end - end - end - else - while start do - local id = start.id - if id == glyph then ---~ if start.subtype<256 and start.font == font and (not attr or has_attribute(start,0,attr)) and (not attribute or has_attribute(start,state,attribute)) then - if start.subtype<256 and start.font == font and has_attribute(start,0,attr) and (not attribute or has_attribute(start,state,attribute)) then - for i=1,ns do - local lookupname = subtables[i] - local lookupcache = thecache[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 - start, ok = handler(start,r[4],lookupname,lookupmatch,sequence,featuredata,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 - -- elseif id == glue 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 - elseif id == whatsit then - local subtype = start.subtype - local subtype = start.subtype - if subtype == 7 then - local dir = start.dir - if dir == "+TRT" or dir == "+TLT" then - insert(txtdir,dir) - elseif dir == "-TRT" or dir == "-TLT" then - remove(txtdir) - end - local d = txtdir[#txtdir] - if d == "+TRT" then - rlmode = -1 - elseif d == "+TLT" then - rlmode = 1 - else - rlmode = pardir - end - if trace_directions then - logs.report("fonts","directions after textdir %s: pardir=%s, txtdir=%s:%s, rlmode=%s",dir,pardir,#txtdir,txtdir[#txtdir] or "unset",rlmode) - end - elseif subtype == 6 then - local dir = start.dir - if dir == "TRT" then - pardir = -1 - elseif dir == "TLT" then - pardir = 1 - else - pardir = 0 - end - rlmode = pardir - --~ txtdir = { } - if trace_directions then - logs.report("fonts","directions after pardir %s: pardir=%s, txtdir=%s:%s, rlmode=%s",dir,pardir,#txtdir,txtdir[#txtdir] or "unset",rlmode) - end - end - start = 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 - return head, done -end - -otf.features.prepare = { } - --- we used to share code in the following functions but that costs a lot of --- memory due to extensive calls to functions (easily hundreds of thousands per --- document) - -local function split(replacement,original,cache,unicodes) - -- we can cache this too, but not the same - local o, t, n = { }, { }, 0 - for s in gmatch(original,"[^ ]+") do - local us = unicodes[s] - if type(us) == "number" then - o[#o+1] = us - else - o[#o+1] = us[1] - end - end - for s in gmatch(replacement,"[^ ]+") do - n = n + 1 - local us = unicodes[s] - if type(us) == "number" then - t[o[n]] = us - else - t[o[n]] = us[1] - end - end - return t -end - -local function uncover(covers,result,cache,unicodes) - -- lpeg hardly faster (.005 sec on mk) - for n=1,#covers do - local c = covers[n] - local cc = cache[c] - if not cc then - local t = { } - for s in gmatch(c,"[^ ]+") do - local us = unicodes[s] - if type(us) == "number" then - t[us] = true - else - for i=1,#us do - t[us[i]] = true - end - end - end - cache[c] = t - result[#result+1] = t - else - result[#result+1] = cc - end - end -end - -local function prepare_lookups(tfmdata) - local otfdata = tfmdata.shared.otfdata - local featuredata = otfdata.shared.featuredata - local anchor_to_lookup = otfdata.luatex.anchor_to_lookup - local lookup_to_anchor = otfdata.luatex.lookup_to_anchor - -- - local multiple = featuredata.gsub_multiple - local alternate = featuredata.gsub_alternate - local single = featuredata.gsub_single - local ligature = featuredata.gsub_ligature - local pair = featuredata.gpos_pair - local position = featuredata.gpos_single - local kerns = featuredata.gpos_pair - local mark = featuredata.gpos_mark2mark - local cursive = featuredata.gpos_cursive - -- - local unicodes = tfmdata.unicodes -- names to unicodes - local indices = tfmdata.indices - local descriptions = tfmdata.descriptions - -- - -- we can change the otf table after loading but then we need to adapt base mode - -- as well (no big deal) - -- - local action = { - substitution = function(p,lookup,k,glyph,unicode) - local old, new = unicode, unicodes[p[2]] - if type(new) == "table" then - new = new[1] - end - local s = single[lookup] - if not s then s = { } single[lookup] = s end - s[old] = new - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: substitution %s => %s",lookup,old,new) - --~ end - end, - multiple = function (p,lookup,k,glyph,unicode) - local old, new = unicode, { } - local m = multiple[lookup] - if not m then m = { } multiple[lookup] = m end - m[old] = new - for pc in gmatch(p[2],"[^ ]+") do - local upc = unicodes[pc] - if type(upc) == "number" then - new[#new+1] = upc - else - new[#new+1] = upc[1] - end - end - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: multiple %s => %s",lookup,old,concat(new," ")) - --~ end - end, - alternate = function(p,lookup,k,glyph,unicode) - local old, new = unicode, { } - local a = alternate[lookup] - if not a then a = { } alternate[lookup] = a end - a[old] = new - for pc in gmatch(p[2],"[^ ]+") do - local upc = unicodes[pc] - if type(upc) == "number" then - new[#new+1] = upc - else - new[#new+1] = upc[1] - end - end - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: alternate %s => %s",lookup,old,concat(new,"|")) - --~ end - end, - ligature = function (p,lookup,k,glyph,unicode) - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: ligature %s => %s",lookup,p[2],glyph.name) - --~ end - local first = true - local t = ligature[lookup] - if not t then t = { } ligature[lookup] = t end - for s in gmatch(p[2],"[^ ]+") do - if first then - local u = unicodes[s] - if not u then - logs.report("define otf","lookup %s: ligature %s => %s ignored due to invalid unicode",lookup,p[2],glyph.name) - break - elseif type(u) == "number" then - if not t[u] then - t[u] = { { } } - end - t = t[u] - else - local tt = t - local tu - for i=1,#u do - local u = u[i] - if i==1 then - if not t[u] then - t[u] = { { } } - end - tu = t[u] - t = tu - else - if not t[u] then - tt[u] = tu - end - end - end - end - first = false - else - s = unicodes[s] - local t1 = t[1] - if not t1[s] then - t1[s] = { { } } - end - t = t1[s] - end - end - t[2] = unicode - end, - position = function(p,lookup,k,glyph,unicode) - -- not used - local s = position[lookup] - if not s then s = { } position[lookup] = s end - s[unicode] = p[2] -- direct pointer to kern spec - end, - pair = function(p,lookup,k,glyph,unicode) - local s = pair[lookup] - if not s then s = { } pair[lookup] = s end - local others = s[unicode] - if not others then others = { } s[unicode] = others end - -- todo: fast check for space - local two = p[2] - local upc = unicodes[two] - if not upc then - for pc in gmatch(two,"[^ ]+") do - local upc = unicodes[pc] - if type(upc) == "number" then - others[upc] = p -- direct pointer to main table - else - for i=1,#upc do - others[upc[i]] = p -- direct pointer to main table - end - end - end - elseif type(upc) == "number" then - others[upc] = p -- direct pointer to main table - else - for i=1,#upc do - others[upc[i]] = p -- direct pointer to main table - end - end - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: pair for U+%04X",lookup,unicode) - --~ end - end, - } - -- - for unicode, glyph in next, descriptions do - local lookups = glyph.slookups - if lookups then - for lookup, p in next, lookups do - action[p[1]](p,lookup,k,glyph,unicode) - end - end - local lookups = glyph.mlookups - if lookups then - for lookup, whatever in next, lookups do - for i=1,#whatever do -- normaly one - local p = whatever[i] - action[p[1]](p,lookup,k,glyph,unicode) - end - end - end - local list = glyph.mykerns - if list then - for lookup, krn in next, list do - local k = kerns[lookup] - if not k then k = { } kerns[lookup] = k end - k[unicode] = krn -- ref to glyph, saves lookup - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: kern for U+%04X",lookup,unicode) - --~ end - end - end - local oanchor = glyph.anchors - if oanchor then - for typ, anchors in next, oanchor do -- types - if typ == "mark" then - for name, anchor in next, anchors do - local lookups = anchor_to_lookup[name] - if lookups then - for lookup, _ in next, lookups do - local f = mark[lookup] - if not f then f = { } mark[lookup] = f end - f[unicode] = anchors -- ref to glyph, saves lookup - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: mark anchor %s for U+%04X",lookup,name,unicode) - --~ end - end - end - end - elseif 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 f = cursive[lookup] - if not f then f = { } cursive[lookup] = f end - f[unicode] = anchors -- ref to glyph, saves lookup - --~ if trace_lookups then - --~ logs.report("define otf","lookup %s: exit anchor %s for U+%04X",lookup,name,unicode) - --~ end - end - end - end - end - end - end - end -end - --- local cache = { } -luatex = luatex or {} -- this has to change ... we need a better one - -function prepare_contextchains(tfmdata) - local otfdata = tfmdata.shared.otfdata - local lookups = otfdata.lookups - if lookups then - local featuredata = otfdata.shared.featuredata - local contextchain = featuredata.gsub_contextchain -- shared with gpos - local reversecontextchain = featuredata.gsub_reversecontextchain -- shared with gpos - local characters = tfmdata.characters - local unicodes = tfmdata.unicodes - local indices = tfmdata.indices - local cache = luatex.covers - if not cache then - cache = { } - luatex.covers = cache - end - -- - for lookupname, lookupdata in next, otfdata.lookups do - local lookuptype = lookupdata.type - if not lookuptype then - logs.report("otf process","missing lookuptype for %s",lookupname) - else - local rules = lookupdata.rules - if rules then - local fmt = lookupdata.format - -- contextchain[lookupname][unicode] - if fmt == "coverage" then - if lookuptype ~= "chainsub" and lookuptype ~= "chainpos" then - logs.report("otf process","unsupported coverage %s for %s",lookuptype,lookupname) - else - local contexts = contextchain[lookupname] - if not contexts then - contexts = { } - contextchain[lookupname] = contexts - end - local t = { } - for nofrules=1,#rules do -- does #rules>1 happen often? - local rule = rules[nofrules] - local coverage = rule.coverage - if coverage and coverage.current then - local current, before, after, sequence = coverage.current, coverage.before, coverage.after, { } - if before then - uncover(before,sequence,cache,unicodes) - end - local start = #sequence + 1 - uncover(current,sequence,cache,unicodes) - local stop = #sequence - if after then - uncover(after,sequence,cache,unicodes) - end - if sequence[1] then - t[#t+1] = { nofrules, lookuptype, sequence, start, stop, rule.lookups } - for unic, _ in next, sequence[start] do - local cu = contexts[unic] - if not cu then - contexts[unic] = t - end - end - end - end - end - end - elseif fmt == "reversecoverage" then - if lookuptype ~= "reversesub" then - logs.report("otf process","unsupported reverse coverage %s for %s",lookuptype,lookupname) - else - local contexts = reversecontextchain[lookupname] - if not contexts then - contexts = { } - reversecontextchain[lookupname] = contexts - end - local t = { } - for nofrules=1,#rules do - local rule = rules[nofrules] - local reversecoverage = rule.reversecoverage - if reversecoverage and reversecoverage.current then - local current, before, after, replacements, sequence = reversecoverage.current, reversecoverage.before, reversecoverage.after, reversecoverage.replacements, { } - if before then - uncover(before,sequence,cache,unicodes) - end - local start = #sequence + 1 - uncover(current,sequence,cache,unicodes) - local stop = #sequence - if after then - uncover(after,sequence,cache,unicodes) - end - if replacements then - replacements = split(replacements,current[1],cache,unicodes) - end - if sequence[1] then - -- this is different from normal coverage, we assume only replacements - t[#t+1] = { 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 - end - end - end - end - end - end -end - -function fonts.initializers.node.otf.features(tfmdata,value) - if true then -- value then - if not tfmdata.shared.otfdata.shared.initialized then - local t = trace_preparing and os.clock() - local otfdata = tfmdata.shared.otfdata - local featuredata = otfdata.shared.featuredata - -- caches - featuredata.gsub_multiple = { } - featuredata.gsub_alternate = { } - featuredata.gsub_single = { } - featuredata.gsub_ligature = { } - featuredata.gsub_contextchain = { } - featuredata.gsub_reversecontextchain = { } - featuredata.gpos_pair = { } - featuredata.gpos_single = { } - featuredata.gpos_mark2base = { } - featuredata.gpos_mark2ligature = featuredata.gpos_mark2base - featuredata.gpos_mark2mark = featuredata.gpos_mark2base - featuredata.gpos_cursive = { } - featuredata.gpos_contextchain = featuredata.gsub_contextchain - featuredata.gpos_reversecontextchain = featuredata.gsub_reversecontextchain - -- - prepare_contextchains(tfmdata) - prepare_lookups(tfmdata) - otfdata.shared.initialized = true - if trace_preparing then - logs.report("otf process","preparation time is %0.3f seconds for %s",os.clock()-t,tfmdata.fullname or "?") - end - end - end -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" -} - --- this might become scrp-*.lua - -local type, tostring, match, format, concat = type, tostring, string.match, string.format, table.concat - -if not trackers then trackers = { register = function() end } end - -local trace_analyzing = false trackers.register("otf.analyzing", function(v) trace_analyzing = v end) -local trace_cjk = false trackers.register("cjk.injections", function(v) trace_cjk = v end) - -trackers.register("cjk.analyzing","otf.analyzing") - -fonts = fonts or { } -fonts.analyzers = fonts.analyzers or { } -fonts.analyzers.initializers = fonts.analyzers.initializers or { node = { otf = { } } } -fonts.analyzers.methods = fonts.analyzers.methods or { node = { otf = { } } } - -local otf = fonts.otf -local tfm = fonts.tfm - -local initializers = fonts.analyzers.initializers -local methods = fonts.analyzers.methods - -local glyph = node.id('glyph') -local glue = node.id('glue') -local penalty = node.id('penalty') - -local set_attribute = node.set_attribute -local has_attribute = node.has_attribute -local traverse_id = node.traverse_id -local delete_node = nodes.delete -local replace_node = nodes.replace -local insert_node_after = node.insert_after -local insert_node_before = node.insert_before -local traverse_node_list = node.traverse - -local new_glue_node = nodes.glue - -local fontdata = fonts.ids -local state = attributes.private('state') - -local fcs = (fonts.color and fonts.color.set) or function() end -local fcr = (fonts.color and fonts.color.reset) or function() end - -local a_to_script = otf.a_to_script -local a_to_language = otf.a_to_language - --- 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 - - -function fonts.initializers.node.otf.analyze(tfmdata,value,attr) - if attr and attr > 0 then - script, language = a_to_script[attr], a_to_language[attr] - else - script, language = tfmdata.script, tfmdata.language - end - local action = initializers[script] - if action then - if type(action) == "function" then - return action(tfmdata,value) - else - local action = action[language] - if action then - return action(tfmdata,value) - end - end - end - return nil -end - -function fonts.methods.node.otf.analyze(head,font,attr) - local tfmdata = fontdata[font] - local script, language - if attr and attr > 0 then - script, language = a_to_script[attr], a_to_language[attr] - else - script, language = tfmdata.script, tfmdata.language - end - local action = methods[script] - if action then - if type(action) == "function" then - return action(head,font,attr) - else - action = action[language] - if action then - return action(head,font,attr) - end - end - end - return head, false -end - -otf.features.register("analyze",true) -- we always analyze -table.insert(fonts.triggers,"analyze") -- we need a proper function for doing this - --- latin - -fonts.analyzers.methods.latn = fonts.analyzers.aux.setstate - --- this info eventually will go into char-def - -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, -} - -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, [zwj] = true, -} - -local arab_warned = { } - --- todo: gref - -local function warning(current,what) - local char = current.char - if not arab_warned[char] then - log.report("analyze","arab: character %s (U+%04X) has no %s class", char, char, what) - arab_warned[char] = true - end -end - -function fonts.analyzers.methods.nocolor(head,font,attr) - for n in traverse_node_list(head,glyph) do - if not font or n.font == font then - fcr(n) - end - end - return head, true -end - -otf.remove_joiners = false -- true -- for idris who want it as option - -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 - set_attribute(first,state,4) -- isol - if trace_analyzing then fcs(first,"font:isol") end - else - warning(first,"isol") - set_attribute(first,state,0) -- error - if trace_analyzing then fcr(first) end - 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 - set_attribute(last,state,3) -- fina - if trace_analyzing then fcs(last,"font:fina") end - else - warning(last,"fina") - set_attribute(last,state,0) -- error - if trace_analyzing then fcr(last) end - 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 - set_attribute(first,state,4) -- isol - if trace_analyzing then fcs(first,"font:isol") end - else - warning(first,"isol") - set_attribute(first,state,0) -- error - if trace_analyzing then fcr(first) end - end - first = nil - end - return first, last -end - -function fonts.analyzers.methods.arab(head,font,attr) -- maybe make a special version with no trace - local tfmdata = fontdata[font] - local marks = tfmdata.marks - local first, last, current, done = nil, nil, head, false - local joiners, nonjoiners - local removejoiners = tfmdata.remove_joiners -- or otf.remove_joiners - if removejoiners then - joiners, nonjoiners = { }, { } - end - while current do - if current.id == glyph and current.subtype<256 and current.font == font and not has_attribute(current,state) then - done = true - local char = current.char - if removejoiners then - if char == zwj then - joiners[#joiners+1] = current - elseif char == zwnj then - nonjoiners[#nonjoiners+1] = current - end - end - if marks[char] then - set_attribute(current,state,5) -- mark - if trace_analyzing then fcs(current,"font:mark") end - elseif isol[char] then -- can be zwj or zwnj too - first, last = finish(first,last) - set_attribute(current,state,4) -- isol - if trace_analyzing then fcs(current,"font:isol") end - first, last = nil, nil - elseif not first then - if isol_fina_medi_init[char] then - set_attribute(current,state,1) -- init - if trace_analyzing then fcs(current,"font:init") end - first, last = first or current, current - elseif isol_fina[char] then - set_attribute(current,state,4) -- isol - if trace_analyzing then fcs(current,"font:isol") end - 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 - set_attribute(current,state,2) -- medi - if trace_analyzing then fcs(current,"font:medi") end - elseif isol_fina[char] then - if not has_attribute(last,state,1) then - -- tricky, we need to check what last may be ! - set_attribute(last,state,2) -- medi - if trace_analyzing then fcs(last,"font:medi") end - end - set_attribute(current,state,3) -- fina - if trace_analyzing then fcs(current,"font:fina") end - first, last = nil, nil - elseif char >= 0x0600 and char <= 0x06FF then - if trace_analyzing then fcs(current,"font:rest") end - first, last = finish(first,last) - else --no - first, last = finish(first,last) - end - else - first, last = finish(first,last) - end - current = current.next - end - first, last = finish(first,last) - if removejoiners then - -- is never head - for i=1,#joiners do - delete_node(head,joiners[i]) - end - for i=1,#nonjoiners do - replace_node(head,nonjoiners[i],new_glue_node(0)) -- or maybe a kern - end - end - return head, done -end - -table.insert(fonts.manipulators,"joiners") - -function fonts.initializers.node.otf.joiners(tfmdata,value) - if value == "strip" then - tfmdata.remove_joiners = true - end -end - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-otc'] = { - version = 1.001, - comment = "companion to font-otf.lua (context)", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files" -} - -local format, insert = string.format, table.insert -local type, next = type, next - -local ctxcatcodes = tex.ctxcatcodes - --- we assume that the other otf stuff is loaded already - -local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) - -local otf = fonts.otf -local tfm = fonts.tfm - --- instead of "script = "DFLT", langs = { 'dflt' }" we now use wildcards (we used to --- have always); some day we can write a "force always when true" trick for other --- features as well --- --- we could have a tnum variant as well - -local extra_lists = { - tlig = { - { - endash = "hyphen hyphen", - emdash = "hyphen hyphen hyphen", - -- quotedblleft = "quoteleft quoteleft", - -- quotedblright = "quoteright quoteright", - -- quotedblleft = "grave grave", - -- quotedblright = "quotesingle quotesingle", - -- quotedblbase = "comma comma", - }, - }, - trep = { - { - -- [0x0022] = 0x201D, - [0x0027] = 0x2019, - -- [0x0060] = 0x2018, - }, - }, - anum = { - { -- arabic - [0x0030] = 0x0660, - [0x0031] = 0x0661, - [0x0032] = 0x0662, - [0x0033] = 0x0663, - [0x0034] = 0x0664, - [0x0035] = 0x0665, - [0x0036] = 0x0666, - [0x0037] = 0x0667, - [0x0038] = 0x0668, - [0x0039] = 0x0669, - }, - { -- persian - [0x0030] = 0x06F0, - [0x0031] = 0x06F1, - [0x0032] = 0x06F2, - [0x0033] = 0x06F3, - [0x0034] = 0x06F4, - [0x0035] = 0x06F5, - [0x0036] = 0x06F6, - [0x0037] = 0x06F7, - [0x0038] = 0x06F8, - [0x0039] = 0x06F9, - }, - }, -} - -local extra_features = { -- maybe just 1..n so that we prescribe order - tlig = { - { - features = { { scripts = { { script = "*", langs = { "*" }, } }, tag = "tlig", comment = "added bij mkiv" }, }, - name = "ctx_tlig_1", - subtables = { { name = "ctx_tlig_1_s" } }, - type = "gsub_ligature", - flags = { }, - }, - }, - trep = { - { - features = { { scripts = { { script = "*", langs = { "*" }, } }, tag = "trep", comment = "added bij mkiv" }, }, - name = "ctx_trep_1", - subtables = { { name = "ctx_trep_1_s" } }, - type = "gsub_single", - flags = { }, - }, - }, - anum = { - { - features = { { scripts = { { script = "arab", langs = { "dflt", "FAR" }, } }, tag = "anum", comment = "added bij mkiv" }, }, - name = "ctx_anum_1", - subtables = { { name = "ctx_anum_1_s" } }, - type = "gsub_single", - flags = { }, - }, - { - features = { { scripts = { { script = "arab", langs = { "URD" }, } }, tag = "anum", comment = "added bij mkiv" }, }, - name = "ctx_anum_2", - subtables = { { name = "ctx_anum_2_s" } }, - type = "gsub_single", - flags = { }, - }, - }, -} - -fonts.otf.enhancers["add some missing characters"] = function(data,filename) - -- todo -end - -fonts.otf.enhancers["enrich with features"] = function(data,filename) - -- could be done elsewhere (true can be #) - local used = { } - for i=1,#otf.glists do - local g = data[otf.glists[i]] - if g then - for i=1,#g do - local f = g[i].features - if f then - for i=1,#f do - local t = f[i].tag - if t then used[t] = true end - end - end - end - end - end - -- - local glyphs = data.glyphs - local indices = data.map.map - data.gsub = data.gsub or { } - for kind, specifications in next, extra_features do - if not used[kind] then - local done = 0 - for s=1,#specifications do - local added = false - local specification = specifications[s] - local list = extra_lists[kind][s] - local name = specification.name .. "_s" - if specification.type == "gsub_ligature" then - for unicode, index in next, indices do - local glyph = glyphs[index] - local ligature = list[glyph.name] - if ligature then - local o = glyph.lookups or { } - -- o[name] = { "ligature", ligature, glyph.name } - o[name] = { - { - ["type"] = "ligature", - ["specification"] = { - char = glyph.name, - components = ligature, - } - } - } - glyph.lookups, done, added = o, done+1, true - end - end - elseif specification.type == "gsub_single" then - for unicode, index in next, indices do - local glyph = glyphs[index] - local r = list[unicode] - if r then - local replacement = indices[r] - if replacement and glyphs[replacement] then - local o = glyph.lookups or { } - -- o[name] = { { "substitution", glyphs[replacement].name } } - o[name] = { - { - ["type"] = "substitution", - ["specification"] = { - variant = glyphs[replacement].name, - } - } - } - glyph.lookups, done, added = o, done+1, true - end - end - end - end - if added then - insert(data.gsub,s,table.fastcopy(specification)) -- right order - end - end - if done > 0 then - if trace_loading then - logs.report("load otf","enhance: registering %s feature (%s glyphs affected)",kind,done) - end - end - end - end -end - -otf.tables.features['tlig'] = 'TeX Ligatures' -otf.tables.features['trep'] = 'TeX Replacements' -otf.tables.features['anum'] = 'Arabic Digits' - -otf.features.register_base_substitution('tlig') -otf.features.register_base_substitution('trep') -otf.features.register_base_substitution('anum') - --- the functionality is defined elsewhere - -fonts.initializers.base.otf.equaldigits = fonts.initializers.common.equaldigits -fonts.initializers.node.otf.equaldigits = fonts.initializers.common.equaldigits - -fonts.initializers.base.otf.lineheight = fonts.initializers.common.lineheight -fonts.initializers.node.otf.lineheight = fonts.initializers.common.lineheight - -fonts.initializers.base.otf.compose = fonts.initializers.common.compose -fonts.initializers.node.otf.compose = fonts.initializers.common.compose - --- bonus function - -function otf.name_to_slot(name) -- todo: afm en tfm - local tfmdata = fonts.ids[font.current()] - if tfmdata and tfmdata.shared then - local otfdata = tfmdata.shared.otfdata - local unicode = otfdata.luatex.unicodes[name] - if not unicode then - return string.byte("?") -- nil - elseif type(unicode) == "number" then - return unicode - else - return unicode[1] - end - end - return nil -end - -function otf.char(n) -- todo: afm en tfm - if type(n) == "string" then - n = otf.name_to_slot(n) - end - if n then - tex.sprint(ctxcatcodes,format("\\char%s ",n)) - 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" -} - -local format, concat, gmatch, match, find, lower = string.format, table.concat, string.gmatch, string.match, string.find, string.lower -local tostring, next = tostring, next -local lpegmatch = lpeg.match - -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.*") - ---[[ldx-- -<p>Here we deal with defining fonts. We do so by intercepting the -default loader that only handles <l n='tfm'/>.</p> ---ldx]]-- - -fonts = fonts or { } -fonts.define = fonts.define or { } -fonts.tfm = fonts.tfm or { } -fonts.ids = fonts.ids or { } -fonts.vf = fonts.vf or { } -fonts.used = fonts.used or { } - -local tfm = fonts.tfm -local vf = fonts.vf -local define = fonts.define - -tfm.version = 1.01 -tfm.cache = containers.define("fonts", "tfm", tfm.version, false) -- better in font-tfm - -define.method = "afm or tfm" -- afm, tfm, afm or tfm, tfm or afm -define.specify = fonts.define.specify or { } -define.methods = fonts.define.methods or { } - -tfm.fonts = tfm.fonts or { } -tfm.readers = tfm.readers or { } -tfm.internalized = tfm.internalized or { } -- internal tex numbers - -tfm.readers.sequence = { 'otf', 'ttf', 'afm', 'tfm' } - -tfm.auto_afm = true - -local readers = tfm.readers -local sequence = readers.sequence - ---[[ldx-- -<p>We hardly gain anything when we cache the final (pre scaled) -<l n='tfm'/> table. But it can be handy for debugging.</p> ---ldx]]-- - -fonts.version = 1.05 -fonts.cache = containers.define("fonts", "def", fonts.version, false) - ---[[ldx-- -<p>We can prefix a font specification by <type>name:</type> or -<type>file:</type>. The first case will result in a lookup in the -synonym table.</p> - -<typing> -[ name: | file: ] identifier [ separator [ specification ] ] -</typing> - -<p>The following function split the font specification into components -and prepares a table that will move along as we proceed.</p> ---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, specifiers = 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(" ") - -define.defaultlookup = "file" - -local prefixpattern = P(false) - -function define.add_specifier(symbol) - specifiers = specifiers .. symbol - local method = S(specifiers) - 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 - -function define.add_lookup(str,default) - prefixpattern = prefixpattern + P(str) -end - -define.add_lookup("file") -define.add_lookup("name") -define.add_lookup("spec") - -function define.get_specification(str) - return lpegmatch(splitter,str) -end - -function define.register_split(symbol,action) - define.add_specifier(symbol) - define.specify[symbol] = action -end - -function define.makespecification(specification, lookup, name, sub, method, detail, size) - size = size or 655360 - if trace_defining then - logs.report("define font","%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 specification.lookup then ---~ lookup = specification.lookup -- can come from xetex [] syntax ---~ specification.lookup = nil ---~ end - if not lookup or lookup == "" then - lookup = define.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 - -function define.analyze(specification, size) - -- can be optimized with locals - local lookup, name, sub, method, detail = define.get_specification(specification or "") - return define.makespecification(specification, lookup, name, sub, method, detail, size) -end - ---[[ldx-- -<p>A unique hash value is generated by:</p> ---ldx]]-- - -local sortedhashkeys = table.sortedhashkeys - -function tfm.hash_features(specification) - local features = specification.features - if features then - local t = { } - local normal = features.normal - if normal and next(normal) then - local f = sortedhashkeys(normal) - for i=1,#f do - local v = f[i] - if v ~= "number" and v ~= "features" then -- i need to figure this out, features - t[#t+1] = v .. '=' .. tostring(normal[v]) - end - end - end - local vtf = features.vtf - if vtf and next(vtf) then - local f = sortedhashkeys(vtf) - for i=1,#f do - local v = f[i] - t[#t+1] = v .. '=' .. tostring(vtf[v]) - end - end ---~ if specification.mathsize then ---~ t[#t+1] = "mathsize=" .. specification.mathsize ---~ end - if #t > 0 then - return concat(t,"+") - end - end - return "unknown" -end - -fonts.designsizes = { } - ---[[ldx-- -<p>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 <l n='luatex'/>.</p> ---ldx]]-- - -function tfm.hash_instance(specification,force) - local hash, size, fallbacks = specification.hash, specification.size, specification.fallbacks - if force or not hash then - hash = tfm.hash_features(specification) - specification.hash = hash - end - if size < 1000 and fonts.designsizes[hash] then - size = math.round(tfm.scaled(size, fonts.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 - ---[[ldx-- -<p>We can resolve the filename using the next function:</p> ---ldx]]-- - -define.resolvers = resolvers - -function define.resolvers.file(specification) - specification.forced = file.extname(specification.name) - specification.name = file.removesuffix(specification.name) -end - -function define.resolvers.name(specification) - local resolve = fonts.names.resolve - if resolve then - specification.resolved, specification.sub = fonts.names.resolve(specification.name,specification.sub) - if specification.resolved then - specification.forced = file.extname(specification.resolved) - specification.name = file.removesuffix(specification.resolved) - end - else - define.resolvers.file(specification) - end -end - -function define.resolvers.spec(specification) - local resolvespec = fonts.names.resolvespec - if resolvespec then - specification.resolved, specification.sub = fonts.names.resolvespec(specification.name,specification.sub) - if specification.resolved then - specification.forced = file.extname(specification.resolved) - specification.name = file.removesuffix(specification.resolved) - end - else - define.resolvers.name(specification) - end -end - -function define.resolve(specification) - if not specification.resolved or specification.resolved == "" then -- resolved itself not per se in mapping hash - local r = define.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 .. ' @ ' .. tfm.hash_features(specification)) - if specification.sub and specification.sub ~= "" then - specification.hash = specification.sub .. ' @ ' .. specification.hash - end - return specification -end - ---[[ldx-- -<p>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.</p> - -<p>We need to cache when possible. We do cache raw tfm data (from <l -n='tfm'/>, <l n='afm'/> or <l n='otf'/>). After that we can cache based -on specificstion (name) and size, that is, <l n='tex'/> only needs a number -for an already loaded fonts. However, it may make sense to cache fonts -before they're scaled as well (store <l n='tfm'/>'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.</p> - -<p>Watch out, here we do load a font, but we don't prepare the -specification yet.</p> ---ldx]]-- - -function tfm.read(specification) - local hash = tfm.hash_instance(specification) - local tfmtable = tfm.fonts[hash] -- hashes by size ! - if not tfmtable then - local forced = specification.forced or "" - if forced ~= "" then - tfmtable = readers[lower(forced)](specification) - if not tfmtable then - logs.report("define font","forced type %s of %s not found",forced,specification.name) - end - else - for s=1,#sequence do -- reader sequence - local reader = sequence[s] - if readers[reader] then -- not really needed - if trace_defining then - logs.report("define font","trying (reader sequence driven) type %s for %s with file %s",reader,specification.name,specification.filename or "unknown") - end - tfmtable = readers[reader](specification) - if tfmtable then - break - else - specification.filename = nil - end - end - end - end - if tfmtable then - if directive_embedall then - tfmtable.embedding = "full" - elseif tfmtable.filename and fonts.dontembed[tfmtable.filename] then - tfmtable.embedding = "no" - else - tfmtable.embedding = "subset" - end - tfm.fonts[hash] = tfmtable - fonts.designsizes[specification.hash] = tfmtable.designsize -- we only know this for sure after loading once - --~ tfmtable.mode = specification.features.normal.mode or "base" - end - end - if not tfmtable then - logs.report("define font","font with name %s is not found",specification.name) - end - return tfmtable -end - ---[[ldx-- -<p>For virtual fonts we need a slightly different approach:</p> ---ldx]]-- - -function tfm.read_and_define(name,size) -- no id - local specification = define.analyze(name,size) - local method = specification.method - if method and define.specify[method] then - specification = define.specify[method](specification) - end - specification = define.resolve(specification) - local hash = tfm.hash_instance(specification) - local id = define.registered(hash) - if not id then - local fontdata = tfm.read(specification) - if fontdata then - fontdata.hash = hash - id = font.define(fontdata) - define.register(fontdata,id) - tfm.cleanup_table(fontdata) - else - id = 0 -- signal - end - end - return fonts.ids[id], id -end - ---[[ldx-- -<p>Next follow the readers. This code was written while <l n='luatex'/> -evolved. Each one has its own way of dealing with its format.</p> ---ldx]]-- - -local function check_tfm(specification,fullname) - -- ofm directive blocks local path search unless set; btw, in context we - -- don't support ofm files anyway as this format is obsolete - local foundname = resolvers.findbinfile(fullname, 'tfm') or "" -- just to be sure - if foundname == "" then - foundname = resolvers.findbinfile(fullname, 'ofm') or "" -- bonus for usage outside context - end - if foundname ~= "" then - specification.filename, specification.format = foundname, "ofm" - return tfm.read_from_tfm(specification) - end -end - -local function check_afm(specification,fullname) - local foundname = resolvers.findbinfile(fullname, 'afm') or "" -- just to be sure - if foundname == "" and tfm.auto_afm then - local encoding, shortname = match(fullname,"^(.-)%-(.*)$") -- context: encoding-name.* - if encoding and shortname and fonts.enc.known[encoding] then - shortname = resolvers.findbinfile(shortname,'afm') or "" -- just to be sure - if shortname ~= "" then - foundname = shortname - -- tfm.set_normal_feature(specification,'encoding',encoding) -- will go away - if trace_loading then - logs.report("load afm","stripping encoding prefix from filename %s",afmname) - end - end - end - end - if foundname ~= "" then - specification.filename, specification.format = foundname, "afm" - return tfm.read_from_afm(specification) - end -end - -function readers.tfm(specification) - local fullname, tfmtable = specification.filename or "", nil - if fullname == "" then - local forced = specification.forced or "" - if forced ~= "" then - tfmtable = check_tfm(specification,specification.name .. "." .. forced) - end - if not tfmtable then - tfmtable = check_tfm(specification,specification.name) - end - else - tfmtable = check_tfm(specification,fullname) - end - return tfmtable -end - -function readers.afm(specification,method) - local fullname, tfmtable = specification.filename or "", nil - if fullname == "" then - local forced = specification.forced or "" - if forced ~= "" then - tfmtable = check_afm(specification,specification.name .. "." .. forced) - end - if not tfmtable then - method = method or define.method or "afm or tfm" - if method == "tfm" then - tfmtable = check_tfm(specification,specification.name) - elseif method == "afm" then - tfmtable = check_afm(specification,specification.name) - elseif method == "tfm or afm" then - tfmtable = check_tfm(specification,specification.name) or check_afm(specification,specification.name) - else -- method == "afm or tfm" or method == "" then - tfmtable = check_afm(specification,specification.name) or check_tfm(specification,specification.name) - end - end - else - tfmtable = check_afm(specification,fullname) - end - return tfmtable -end - --- maybe some day a set of names - -local function check_otf(forced,specification,suffix,what) - local name = specification.name - if forced then - name = file.addsuffix(name,suffix) - end - local fullname, tfmtable = resolvers.findbinfile(name,suffix) or "", nil -- one shot - if fullname == "" then - local fb = fonts.names.old_to_new[name] - if fb then - fullname = resolvers.findbinfile(fb,suffix) or "" - end - end - if fullname == "" then - local fb = fonts.names.new_to_old[name] - if fb then - fullname = resolvers.findbinfile(fb,suffix) or "" - end - end - if fullname ~= "" then - specification.filename, specification.format = fullname, what -- hm, so we do set the filename, then - tfmtable = tfm.read_from_open_type(specification) -- we need to do it for all matches / todo - end - return tfmtable -end - -function readers.opentype(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 - -function readers.otf (specification) return readers.opentype(specification,"otf","opentype") end -function readers.ttf (specification) return readers.opentype(specification,"ttf","truetype") end -function readers.ttc (specification) return readers.opentype(specification,"ttf","truetype") end -- !! -function readers.dfont(specification) return readers.opentype(specification,"ttf","truetype") end -- !! - ---[[ldx-- -<p>We need to check for default features. For this we provide -a helper function.</p> ---ldx]]-- - -function define.check(features,defaults) -- nb adapts features ! - local done = false - if table.is_empty(features) then - features, done = table.fastcopy(defaults), true - else - for k,v in next, defaults do - if features[k] == nil then - features[k], done = v, true - end - end - end - return features, done -- done signals a change -end - ---[[ldx-- -<p>So far the specifyers. 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).</p> - -In the previously defined reader (the one resulting in a <l n='tfm'/> -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.</p> ---ldx]]-- - -define.last = nil - -function define.register(fontdata,id) - if fontdata and id then - local hash = fontdata.hash - if not tfm.internalized[hash] then - if trace_defining then - logs.report("define font","loading at 2 id %s, hash: %s",id or "?",hash or "?") - end - fonts.ids[id] = fontdata - fonts.chr[id] = fontdata.characters - tfm.internalized[hash] = id - end - end -end - -function define.registered(hash) - local id = tfm.internalized[hash] - return id, id and fonts.ids[id] -end - -local cache_them = false - -function tfm.make(specification) - -- currently fonts are scaled while constructing the font, so we - -- have to do scaling of commands in the vf at that point using - -- e.g. "local scale = g.factor or 1" after all, we need to work - -- with copies anyway and scaling needs to be done at some point; - -- however, when virtual tricks are used as feature (makes more - -- sense) we scale the commands in fonts.tfm.scale (and set the - -- factor there) - local fvm = define.methods[specification.features.vtf.preset] - if fvm then - return fvm(specification) - else - return nil - end -end - -function define.read(specification,size,id) -- id can be optional, name can already be table - statistics.starttiming(fonts) - if type(specification) == "string" then - specification = define.analyze(specification,size) - end - local method = specification.method - if method and define.specify[method] then - specification = define.specify[method](specification) - end - specification = define.resolve(specification) - local hash = tfm.hash_instance(specification) - if cache_them then - local fontdata = containers.read(fonts.cache(),hash) -- for tracing purposes - end - local fontdata = define.registered(hash) -- id - if not fontdata then - if specification.features.vtf and specification.features.vtf.preset then - fontdata = tfm.make(specification) - else - fontdata = tfm.read(specification) - if fontdata then - tfm.check_virtual_id(fontdata) - end - end - if cache_them then - fontdata = containers.write(fonts.cache(),hash,fontdata) -- for tracing purposes - end - if fontdata then - fontdata.hash = hash - fontdata.cache = "no" - if id then - define.register(fontdata,id) - end - end - end - define.last = fontdata or id -- todo ! ! ! ! ! - if not fontdata then - logs.report("define font", "unknown font %s, loading aborted",specification.name) - elseif trace_defining and type(fontdata) == "table" then - logs.report("define font","using %s font with id %s, name:%s size:%s bytes:%s encoding:%s fullname:%s filename:%s", - fontdata.type or "unknown", - id or "?", - fontdata.name or "?", - fontdata.size or "default", - fontdata.encodingbytes or "?", - fontdata.encodingname or "unicode", - fontdata.fullname or "?", - file.basename(fontdata.filename or "?")) - - end - statistics.stoptiming(fonts) - return fontdata -end - -function vf.find(name) - name = file.removesuffix(file.basename(name)) - if tfm.resolve_vf then - local format = fonts.logger.format(name) - if format == 'tfm' or format == 'ofm' then - if trace_defining then - logs.report("define font","locating vf for %s",name) - end - return resolvers.findbinfile(name,"ovf") - else - if trace_defining then - logs.report("define font","vf for %s is already taken care of",name) - end - return nil -- "" - end - else - if trace_defining then - logs.report("define font","locating vf for %s",name) - end - return resolvers.findbinfile(name,"ovf") - end -end - ---[[ldx-- -<p>We overload both the <l n='tfm'/> and <l n='vf'/> readers.</p> ---ldx]]-- - -callbacks.register('define_font' , define.read, "definition of fonts (tfmtable preparation)") -callbacks.register('find_vf_file', vf.find , "locating virtual fonts, insofar needed") -- not that relevant any more - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-xtx'] = { - 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 texsprint, count = tex.sprint, tex.count -local format, concat, gmatch, match, find, lower = string.format, table.concat, string.gmatch, string.match, string.find, string.lower -local tostring, next = tostring, next -local lpegmatch = lpeg.match - -local trace_defining = false trackers.register("fonts.defining", function(v) trace_defining = v end) - ---[[ldx-- -<p>Choosing a font by name and specififying its size is only part of the -game. In order to prevent complex commands, <l n='xetex'/> introduced -a method to pass feature information as part of the font name. At the -risk of introducing nasty parsing and compatinility problems, this -syntax was expanded over time.</p> - -<p>For the sake of users who have defined fonts using that syntax, we -will support it, but we will provide additional methods as well. -Normally users will not use this direct way, but use a more abstract -interface.</p> - -<p>The next one is the official one. However, in the plain -variant we need to support the crappy [] specification as -well and that does not work too well with the general design -of the specifier.</p> ---ldx]]-- - ---~ function fonts.define.specify.colonized(specification) -- xetex mode ---~ local list = { } ---~ if specification.detail and specification.detail ~= "" then ---~ for v in gmatch(specification.detail,"%s*([^;]+)%s*") do ---~ local a, b = match(v,"^(%S*)%s*=%s*(%S*)$") ---~ if a and b then ---~ list[a] = b:is_boolean() ---~ if type(list[a]) == "nil" then ---~ list[a] = b ---~ end ---~ else ---~ local a, b = match(v,"^([%+%-]?)%s*(%S+)$") ---~ if a and b then ---~ list[b] = a ~= "-" ---~ end ---~ end ---~ end ---~ end ---~ specification.features.normal = list ---~ return specification ---~ end - ---~ check("oeps/BI:+a;-b;c=d") ---~ check("[oeps]/BI:+a;-b;c=d") ---~ check("file:oeps/BI:+a;-b;c=d") ---~ check("name:oeps/BI:+a;-b;c=d") - -local list = { } - -fonts.define.specify.colonized_default_lookup = "file" - -local function issome () list.lookup = fonts.define.specify.colonized_default_lookup 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 istrue (s) list[s] = 'yes' end -local function isfalse(s) list[s] = 'no' 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 spaces = lpeg.P(" ")^0 -local namespec = (1-lpeg.S("/:("))^0 -- was: (1-lpeg.S("/: ("))^0 -local crapspec = spaces * lpeg.P("/") * (((1-lpeg.P(":"))^0)/iscrap) * spaces -local filename = (lpeg.P("file:")/isfile * (namespec/thename)) + (lpeg.P("[") * lpeg.P(true)/isname * (((1-lpeg.P("]"))^0)/thename) * lpeg.P("]")) -local fontname = (lpeg.P("name:")/isname * (namespec/thename)) + lpeg.P(true)/issome * (namespec/thename) -local sometext = (lpeg.R("az","AZ","09") + lpeg.S("+-."))^1 -local truevalue = lpeg.P("+") * spaces * (sometext/istrue) -local falsevalue = lpeg.P("-") * spaces * (sometext/isfalse) -local keyvalue = (lpeg.C(sometext) * spaces * lpeg.P("=") * spaces * lpeg.C(sometext))/iskey -local somevalue = sometext/istrue -local subvalue = lpeg.P("(") * (lpeg.C(lpeg.P(1-lpeg.S("()"))^1)/issub) * lpeg.P(")") -- for Kim -local option = spaces * (keyvalue + falsevalue + truevalue + somevalue) * spaces -local options = lpeg.P(":") * spaces * (lpeg.P(";")^0 * option)^0 -local pattern = (filename + fontname) * subvalue^0 * crapspec^0 * options^0 - -function fonts.define.specify.colonized(specification) -- xetex mode - list = { } - lpegmatch(pattern,specification.specification) ---~ for k, v in next, list do ---~ list[k] = v:is_boolean() ---~ if type(list[a]) == "nil" then ---~ list[k] = v ---~ end ---~ end - 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 = list - return specification -end - -fonts.define.register_split(":", fonts.define.specify.colonized) - -end -- closure - -do -- begin closure to overcome local limits and interference - -if not modules then modules = { } end modules ['font-dum'] = { - 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" -} - -fonts = fonts or { } - --- general - -fonts.otf.pack = false -fonts.tfm.resolve_vf = false -- no sure about this -fonts.tfm.fontname_mode = "specification" -- somehow latex needs this - --- readers - -fonts.tfm.readers = fonts.tfm.readers or { } -fonts.tfm.readers.sequence = { 'otf', 'ttf', 'tfm' } -fonts.tfm.readers.afm = nil - --- define - -fonts.define = fonts.define or { } - ---~ fonts.define.method = "tfm" - -fonts.define.specify.colonized_default_lookup = "name" - -function fonts.define.get_specification(str) - return "", str, "", ":", str -end - --- logger - -fonts.logger = fonts.logger or { } - -function fonts.logger.save() -end - --- names --- --- 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. - -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 - -function fonts.names.resolve(name,sub) - if not loaded then - local basename = fonts.names.basename - if basename and basename ~= "" then - for _, format in ipairs { "lua", "tex", "other text files" } do - local foundname = resolvers.find_file(basename,format) or "" - if foundname ~= "" then - data = dofile(foundname) - 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 - --- For the moment we put this (adapted) pseudo feature here. - -table.insert(fonts.triggers,"itlc") - -local function itlc(tfmdata,value) - if value then - -- the magic 40 and it formula come from Dohyun Kim - local metadata = tfmdata.shared.otfdata.metadata - if metadata then - local italicangle = metadata.italicangle - if italicangle and italicangle ~= 0 then - local uwidth = (metadata.uwidth or 40)/2 - for unicode, d in next, tfmdata.descriptions do - local it = d.boundingbox[3] - d.width + uwidth - if it ~= 0 then - d.italic = it - end - end - tfmdata.has_italic = true - end - end - end -end - -fonts.initializers.base.otf.itlc = itlc -fonts.initializers.node.otf.itlc = itlc - --- slant and extend - -function fonts.initializers.common.slant(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.slant_factor = value -end - -function fonts.initializers.common.extend(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.extend_factor = value -end - -table.insert(fonts.triggers,"slant") -table.insert(fonts.triggers,"extend") - -fonts.initializers.base.otf.slant = fonts.initializers.common.slant -fonts.initializers.node.otf.slant = fonts.initializers.common.slant -fonts.initializers.base.otf.extend = fonts.initializers.common.extend -fonts.initializers.node.otf.extend = fonts.initializers.common.extend - --- expansion and protrusion - -fonts.protrusions = fonts.protrusions or { } -fonts.protrusions.setups = fonts.protrusions.setups or { } - -local setups = fonts.protrusions.setups - -function fonts.initializers.common.protrusion(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.auto_protrude = 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 - -fonts.expansions = fonts.expansions or { } -fonts.expansions.setups = fonts.expansions.setups or { } - -local setups = fonts.expansions.setups - -function fonts.initializers.common.expansion(tfmdata,value) - if value then - local setup = setups[value] - if setup then - local stretch, shrink, step, factor = setup.stretch or 0, setup.shrink or 0, setup.step or 0, setup.factor or 1 - tfmdata.stretch, tfmdata.shrink, tfmdata.step, tfmdata.auto_expand = stretch * 10, shrink * 10, step * 10, 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 -end - -table.insert(fonts.manipulators,"protrusion") -table.insert(fonts.manipulators,"expansion") - -fonts.initializers.base.otf.protrusion = fonts.initializers.common.protrusion -fonts.initializers.node.otf.protrusion = fonts.initializers.common.protrusion -fonts.initializers.base.otf.expansion = fonts.initializers.common.expansion -fonts.initializers.node.otf.expansion = fonts.initializers.common.expansion - --- left over - -function fonts.register_message() -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, -} - -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 ۔ - -} - -end -- closure |