diff options
Diffstat (limited to 'luaotfload-merged.lua')
| -rw-r--r-- | luaotfload-merged.lua | 929 |
1 files changed, 928 insertions, 1 deletions
diff --git a/luaotfload-merged.lua b/luaotfload-merged.lua index 0a19be1..b39d4a8 100644 --- a/luaotfload-merged.lua +++ b/luaotfload-merged.lua @@ -1,6 +1,6 @@ -- merged file : luatex-fonts-merged.lua -- parent file : luatex-fonts.lua --- merge date : 08/24/13 12:19:21 +-- merge date : 08/24/13 13:59:18 do -- begin closure to overcome local limits and interference @@ -3060,6 +3060,7 @@ local remapper={ fea="font feature files", pfa="type1 fonts", pfb="type1 fonts", + afm="afm", } function resolvers.findfile(name,fileformat) name=string.gsub(name,"\\","/") @@ -3078,6 +3079,10 @@ function resolvers.findfile(name,fileformat) return found end resolvers.findbinfile=resolvers.findfile +function resolvers.loadbinfile(filename,filetype) + local data=io.loaddata(filename) + return true,data,#data +end function resolvers.resolve(s) return s end @@ -5065,6 +5070,928 @@ end -- closure do -- begin closure to overcome local limits and interference +if not modules then modules={} end modules ['font-tfm']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local next=next +local match=string.match +local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end) +local trace_features=false trackers.register("tfm.features",function(v) trace_features=v end) +local report_defining=logs.reporter("fonts","defining") +local report_tfm=logs.reporter("fonts","tfm loading") +local findbinfile=resolvers.findbinfile +local fonts=fonts +local handlers=fonts.handlers +local readers=fonts.readers +local constructors=fonts.constructors +local encodings=fonts.encodings +local tfm=constructors.newhandler("tfm") +local tfmfeatures=constructors.newfeatures("tfm") +local registertfmfeature=tfmfeatures.register +constructors.resolvevirtualtoo=false +fonts.formats.tfm="type1" +function tfm.setfeatures(tfmdata,features) + local okay=constructors.initializefeatures("tfm",tfmdata,features,trace_features,report_tfm) + if okay then + return constructors.collectprocessors("tfm",tfmdata,features,trace_features,report_tfm) + else + return {} + end +end +local function read_from_tfm(specification) + local filename=specification.filename + local size=specification.size + if trace_defining then + report_defining("loading tfm file %a at size %s",filename,size) + end + local tfmdata=font.read_tfm(filename,size) + if tfmdata then + local features=specification.features and specification.features.normal or {} + local resources=tfmdata.resources or {} + local properties=tfmdata.properties or {} + local parameters=tfmdata.parameters or {} + local shared=tfmdata.shared or {} + properties.name=tfmdata.name + properties.fontname=tfmdata.fontname + properties.psname=tfmdata.psname + properties.filename=specification.filename + parameters.size=size + shared.rawdata={} + shared.features=features + shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil + tfmdata.properties=properties + tfmdata.resources=resources + tfmdata.parameters=parameters + tfmdata.shared=shared + parameters.slant=parameters.slant or parameters[1] or 0 + parameters.space=parameters.space or parameters[2] or 0 + parameters.space_stretch=parameters.space_stretch or parameters[3] or 0 + parameters.space_shrink=parameters.space_shrink or parameters[4] or 0 + parameters.x_height=parameters.x_height or parameters[5] or 0 + parameters.quad=parameters.quad or parameters[6] or 0 + parameters.extra_space=parameters.extra_space or parameters[7] or 0 + constructors.enhanceparameters(parameters) + if constructors.resolvevirtualtoo then + fonts.loggers.register(tfmdata,file.suffix(filename),specification) + local vfname=findbinfile(specification.name,'ovf') + if vfname and vfname~="" then + local vfdata=font.read_vf(vfname,size) + if vfdata then + local chars=tfmdata.characters + for k,v in next,vfdata.characters do + chars[k].commands=v.commands + end + properties.virtualized=true + tfmdata.fonts=vfdata.fonts + end + end + end + local allfeatures=tfmdata.shared.features or specification.features.normal + constructors.applymanipulators("tfm",tfmdata,allfeatures.normal,trace_features,report_tfm) + if not features.encoding then + local encoding,filename=match(properties.filename,"^(.-)%-(.*)$") + if filename and encoding and encodings.known and encodings.known[encoding] then + features.encoding=encoding + end + end + return tfmdata + end +end +local function check_tfm(specification,fullname) + local foundname=findbinfile(fullname,'tfm') or "" + if foundname=="" then + foundname=findbinfile(fullname,'ofm') or "" + end + if foundname=="" then + foundname=fonts.names.getfilename(fullname,"tfm") or "" + end + if foundname~="" then + specification.filename=foundname + specification.format="ofm" + return read_from_tfm(specification) + elseif trace_defining then + report_defining("loading tfm with name %a fails",specification.name) + end +end +readers.check_tfm=check_tfm +function readers.tfm(specification) + local fullname=specification.filename or "" + if fullname=="" then + local forced=specification.forced or "" + if forced~="" then + fullname=specification.name.."."..forced + else + fullname=specification.name + end + end + return check_tfm(specification,fullname) +end + +end -- closure + +do -- begin closure to overcome local limits and interference + +if not modules then modules={} end modules ['font-afm']={ + version=1.001, + comment="companion to font-ini.mkiv", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files" +} +local fonts,logs,trackers,containers,resolvers=fonts,logs,trackers,containers,resolvers +local next,type,tonumber=next,type,tonumber +local format,match,gmatch,lower,gsub,strip=string.format,string.match,string.gmatch,string.lower,string.gsub,string.strip +local abs=math.abs +local P,S,C,R,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.C,lpeg.R,lpeg.match,lpeg.patterns +local derivetable=table.derive +local trace_features=false trackers.register("afm.features",function(v) trace_features=v end) +local trace_indexing=false trackers.register("afm.indexing",function(v) trace_indexing=v end) +local trace_loading=false trackers.register("afm.loading",function(v) trace_loading=v end) +local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end) +local report_afm=logs.reporter("fonts","afm loading") +local findbinfile=resolvers.findbinfile +local definers=fonts.definers +local readers=fonts.readers +local constructors=fonts.constructors +local afm=constructors.newhandler("afm") +local pfb=constructors.newhandler("pfb") +local afmfeatures=constructors.newfeatures("afm") +local registerafmfeature=afmfeatures.register +afm.version=1.410 +afm.cache=containers.define("fonts","afm",afm.version,true) +afm.autoprefixed=true +afm.helpdata={} +afm.syncspace=true +afm.addligatures=true +afm.addtexligatures=true +afm.addkerns=true +local function setmode(tfmdata,value) + if value then + tfmdata.properties.mode=lower(value) + end +end +registerafmfeature { + name="mode", + description="mode", + initializers={ + base=setmode, + node=setmode, + } +} +local comment=P("Comment") +local spacing=patterns.spacer +local lineend=patterns.newline +local words=C((1-lineend)^1) +local number=C((R("09")+S("."))^1)/tonumber*spacing^0 +local data=lpeg.Carg(1) +local pattern=( + comment*spacing*( + data*( + ("CODINGSCHEME"*spacing*words )/function(fd,a) end+("DESIGNSIZE"*spacing*number*words )/function(fd,a) fd[ 1]=a end+("CHECKSUM"*spacing*number*words )/function(fd,a) fd[ 2]=a end+("SPACE"*spacing*number*"plus"*number*"minus"*number)/function(fd,a,b,c) fd[ 3],fd[ 4],fd[ 5]=a,b,c end+("QUAD"*spacing*number )/function(fd,a) fd[ 6]=a end+("EXTRASPACE"*spacing*number )/function(fd,a) fd[ 7]=a end+("NUM"*spacing*number*number*number )/function(fd,a,b,c) fd[ 8],fd[ 9],fd[10]=a,b,c end+("DENOM"*spacing*number*number )/function(fd,a,b ) fd[11],fd[12]=a,b end+("SUP"*spacing*number*number*number )/function(fd,a,b,c) fd[13],fd[14],fd[15]=a,b,c end+("SUB"*spacing*number*number )/function(fd,a,b) fd[16],fd[17]=a,b end+("SUPDROP"*spacing*number )/function(fd,a) fd[18]=a end+("SUBDROP"*spacing*number )/function(fd,a) fd[19]=a end+("DELIM"*spacing*number*number )/function(fd,a,b) fd[20],fd[21]=a,b end+("AXISHEIGHT"*spacing*number )/function(fd,a) fd[22]=a end + )+(1-lineend)^0 + )+(1-comment)^1 +)^0 +local function scan_comment(str) + local fd={} + lpegmatch(pattern,str,1,fd) + return fd +end +local keys={} +function keys.FontName (data,line) data.metadata.fontname=strip (line) + data.metadata.fullname=strip (line) end +function keys.ItalicAngle (data,line) data.metadata.italicangle=tonumber (line) end +function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch=toboolean(line,true) end +function keys.CharWidth (data,line) data.metadata.charwidth=tonumber (line) end +function keys.XHeight (data,line) data.metadata.xheight=tonumber (line) end +function keys.Descender (data,line) data.metadata.descender=tonumber (line) end +function keys.Ascender (data,line) data.metadata.ascender=tonumber (line) end +function keys.Comment (data,line) + line=lower(line) + local designsize=match(line,"designsize[^%d]*(%d+)") + if designsize then data.metadata.designsize=tonumber(designsize) end +end +local function get_charmetrics(data,charmetrics,vector) + local characters=data.characters + local chr,ind={},0 + for k,v in gmatch(charmetrics,"([%a]+) +(.-) *;") do + if k=='C' then + v=tonumber(v) + if v<0 then + ind=ind+1 + else + ind=v + end + chr={ + index=ind + } + elseif k=='WX' then + chr.width=tonumber(v) + elseif k=='N' then + characters[v]=chr + elseif k=='B' then + local llx,lly,urx,ury=match(v,"^ *(.-) +(.-) +(.-) +(.-)$") + chr.boundingbox={ tonumber(llx),tonumber(lly),tonumber(urx),tonumber(ury) } + elseif k=='L' then + local plus,becomes=match(v,"^(.-) +(.-)$") + local ligatures=chr.ligatures + if ligatures then + ligatures[plus]=becomes + else + chr.ligatures={ [plus]=becomes } + end + end + end +end +local function get_kernpairs(data,kernpairs) + local characters=data.characters + for one,two,value in gmatch(kernpairs,"KPX +(.-) +(.-) +(.-)\n") do + local chr=characters[one] + if chr then + local kerns=chr.kerns + if kerns then + kerns[two]=tonumber(value) + else + chr.kerns={ [two]=tonumber(value) } + end + end + end +end +local function get_variables(data,fontmetrics) + for key,rest in gmatch(fontmetrics,"(%a+) *(.-)[\n\r]") do + local keyhandler=keys[key] + if keyhandler then + keyhandler(data,rest) + end + end +end +local function get_indexes(data,pfbname) + data.resources.filename=resolvers.unresolve(pfbname) + local pfbblob=fontloader.open(pfbname) + if pfbblob then + local characters=data.characters + local pfbdata=fontloader.to_table(pfbblob) + if pfbdata then + local glyphs=pfbdata.glyphs + if glyphs then + if trace_loading then + report_afm("getting index data from %a",pfbname) + end + for index,glyph in next,glyphs do + local name=glyph.name + if name then + local char=characters[name] + if char then + if trace_indexing then + report_afm("glyph %a has index %a",name,index) + end + char.index=index + end + end + end + elseif trace_loading then + report_afm("no glyph data in pfb file %a",pfbname) + end + elseif trace_loading then + report_afm("no data in pfb file %a",pfbname) + end + fontloader.close(pfbblob) + elseif trace_loading then + report_afm("invalid pfb file %a",pfbname) + end +end +local function readafm(filename) + local ok,afmblob,size=resolvers.loadbinfile(filename) + if ok and afmblob then + local data={ + resources={ + filename=resolvers.unresolve(filename), + version=afm.version, + creator="context mkiv", + }, + properties={ + hasitalics=false, + }, + goodies={}, + metadata={ + filename=file.removesuffix(file.basename(filename)) + }, + characters={ + }, + descriptions={ + }, + } + afmblob=gsub(afmblob,"StartCharMetrics(.-)EndCharMetrics",function(charmetrics) + if trace_loading then + report_afm("loading char metrics") + end + get_charmetrics(data,charmetrics,vector) + return "" + end) + afmblob=gsub(afmblob,"StartKernPairs(.-)EndKernPairs",function(kernpairs) + if trace_loading then + report_afm("loading kern pairs") + end + get_kernpairs(data,kernpairs) + return "" + end) + afmblob=gsub(afmblob,"StartFontMetrics%s+([%d%.]+)(.-)EndFontMetrics",function(version,fontmetrics) + if trace_loading then + report_afm("loading variables") + end + data.afmversion=version + get_variables(data,fontmetrics) + data.fontdimens=scan_comment(fontmetrics) + return "" + end) + return data + else + if trace_loading then + report_afm("no valid afm file %a",filename) + end + return nil + end +end +local addkerns,addligatures,addtexligatures,unify,normalize +function afm.load(filename) + filename=resolvers.findfile(filename,'afm') or "" + if filename~="" then + local name=file.removesuffix(file.basename(filename)) + local data=containers.read(afm.cache,name) + local attr=lfs.attributes(filename) + local size,time=attr.size or 0,attr.modification or 0 + local pfbfile=file.replacesuffix(name,"pfb") + local pfbname=resolvers.findfile(pfbfile,"pfb") or "" + if pfbname=="" then + pfbname=resolvers.findfile(file.basename(pfbfile),"pfb") or "" + end + local pfbsize,pfbtime=0,0 + if pfbname~="" then + local attr=lfs.attributes(pfbname) + pfbsize=attr.size or 0 + pfbtime=attr.modification or 0 + end + if not data or data.size~=size or data.time~=time or data.pfbsize~=pfbsize or data.pfbtime~=pfbtime then + report_afm("reading %a",filename) + data=readafm(filename) + if data then + if pfbname~="" then + get_indexes(data,pfbname) + elseif trace_loading then + report_afm("no pfb file for %a",filename) + end + report_afm("unifying %a",filename) + unify(data,filename) + if afm.addligatures then + report_afm("add ligatures") + addligatures(data) + end + if afm.addtexligatures then + report_afm("add tex ligatures") + addtexligatures(data) + end + if afm.addkerns then + report_afm("add extra kerns") + addkerns(data) + end + normalize(data) + report_afm("add tounicode data") + fonts.mappings.addtounicode(data,filename) + data.size=size + data.time=time + data.pfbsize=pfbsize + data.pfbtime=pfbtime + report_afm("saving %a in cache",name) + data=containers.write(afm.cache,name,data) + data=containers.read(afm.cache,name) + end + end + return data + else + return nil + end +end +local uparser=fonts.mappings.makenameparser() +unify=function(data,filename) + local unicodevector=fonts.encodings.agl.unicodes + local unicodes,names={},{} + local private=constructors.privateoffset + local descriptions=data.descriptions + for name,blob in next,data.characters do + local code=unicodevector[name] + if not code then + code=lpegmatch(uparser,name) + if not code then + code=private + private=private+1 + report_afm("assigning private slot %U for unknown glyph name %a",code,name) + end + end + local index=blob.index + unicodes[name]=code + names[name]=index + blob.name=name + descriptions[code]={ + boundingbox=blob.boundingbox, + width=blob.width, + kerns=blob.kerns, + index=index, + name=name, + } + end + for unicode,description in next,descriptions do + local kerns=description.kerns + if kerns then + local krn={} + for name,kern in next,kerns do + local unicode=unicodes[name] + if unicode then + krn[unicode]=kern + else + print(unicode,name) + end + end + description.kerns=krn + end + end + data.characters=nil + local resources=data.resources + local filename=resources.filename or file.removesuffix(file.basename(filename)) + resources.filename=resolvers.unresolve(filename) + resources.unicodes=unicodes + resources.marks={} + resources.names=names + resources.private=private +end +normalize=function(data) +end +local addthem=function(rawdata,ligatures) + if ligatures then + local descriptions=rawdata.descriptions + local resources=rawdata.resources + local unicodes=resources.unicodes + local names=resources.names + for ligname,ligdata in next,ligatures do + local one=descriptions[unicodes[ligname]] + if one then + for _,pair in next,ligdata do + local two,three=unicodes[pair[1]],unicodes[pair[2]] + if two and three then + local ol=one.ligatures + if ol then + if not ol[two] then + ol[two]=three + end + else + one.ligatures={ [two]=three } + end + end + end + end + end + end +end +addligatures=function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end +addtexligatures=function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end +addkerns=function(rawdata) + local descriptions=rawdata.descriptions + local resources=rawdata.resources + local unicodes=resources.unicodes + local function do_it_left(what) + if what then + for unicode,description in next,descriptions do + local kerns=description.kerns + if kerns then + local extrakerns + for complex,simple in next,what do + complex=unicodes[complex] + simple=unicodes[simple] + if complex and simple then + local ks=kerns[simple] + if ks and not kerns[complex] then + if extrakerns then + extrakerns[complex]=ks + else + extrakerns={ [complex]=ks } + end + end + end + end + if extrakerns then + description.extrakerns=extrakerns + end + end + end + end + end + local function do_it_copy(what) + if what then + for complex,simple in next,what do + complex=unicodes[complex] + simple=unicodes[simple] + if complex and simple then + local complexdescription=descriptions[complex] + if complexdescription then + local simpledescription=descriptions[complex] + if simpledescription then + local extrakerns + local kerns=simpledescription.kerns + if kerns then + for unicode,kern in next,kerns do + if extrakerns then + extrakerns[unicode]=kern + else + extrakerns={ [unicode]=kern } + end + end + end + local extrakerns=simpledescription.extrakerns + if extrakerns then + for unicode,kern in next,extrakerns do + if extrakerns then + extrakerns[unicode]=kern + else + extrakerns={ [unicode]=kern } + end + end + end + if extrakerns then + complexdescription.extrakerns=extrakerns + end + end + end + end + end + end + end + do_it_left(afm.helpdata.leftkerned) + do_it_left(afm.helpdata.bothkerned) + do_it_copy(afm.helpdata.bothkerned) + do_it_copy(afm.helpdata.rightkerned) +end +local function adddimensions(data) + if data then + for unicode,description in next,data.descriptions do + local bb=description.boundingbox + if bb then + local ht,dp=bb[4],-bb[2] + if ht==0 or ht<0 then + else + description.height=ht + end + if dp==0 or dp<0 then + else + description.depth=dp + end + end + end + end +end +local function copytotfm(data) + if data and data.descriptions then + local metadata=data.metadata + local resources=data.resources + local properties=derivetable(data.properties) + local descriptions=derivetable(data.descriptions) + local goodies=derivetable(data.goodies) + local characters={} + local parameters={} + local unicodes=resources.unicodes + for unicode,description in next,data.descriptions do + characters[unicode]={} + end + local filename=constructors.checkedfilename(resources) + local fontname=metadata.fontname or metadata.fullname + local fullname=metadata.fullname or metadata.fontname + local endash=unicodes['space'] + local emdash=unicodes['emdash'] + local spacer="space" + local spaceunits=500 + local monospaced=metadata.isfixedpitch + local charwidth=metadata.charwidth + local italicangle=metadata.italicangle + local charxheight=metadata.xheight and metadata.xheight>0 and metadata.xheight + properties.monospaced=monospaced + parameters.italicangle=italicangle + parameters.charwidth=charwidth + parameters.charxheight=charxheight + if properties.monospaced then + if descriptions[endash] then + spaceunits,spacer=descriptions[endash].width,"space" + end + if not spaceunits and descriptions[emdash] then + spaceunits,spacer=descriptions[emdash].width,"emdash" + end + if not spaceunits and charwidth then + spaceunits,spacer=charwidth,"charwidth" + end + else + if descriptions[endash] then + spaceunits,spacer=descriptions[endash].width,"space" + end + if not spaceunits and charwidth then + spaceunits,spacer=charwidth,"charwidth" + end + end + spaceunits=tonumber(spaceunits) + if spaceunits<200 then + end + parameters.slant=0 + parameters.space=spaceunits + parameters.space_stretch=500 + parameters.space_shrink=333 + parameters.x_height=400 + parameters.quad=1000 + if italicangle then + parameters.italicangle=italicangle + parameters.italicfactor=math.cos(math.rad(90+italicangle)) + parameters.slant=- math.tan(italicangle*math.pi/180) + end + if monospaced then + parameters.space_stretch=0 + parameters.space_shrink=0 + elseif afm.syncspace then + parameters.space_stretch=spaceunits/2 + parameters.space_shrink=spaceunits/3 + end + parameters.extra_space=parameters.space_shrink + if charxheight then + parameters.x_height=charxheight + else + local x=unicodes['x'] + if x then + local x=descriptions[x] + if x then + parameters.x_height=x.height + end + end + end + local fd=data.fontdimens + if fd and fd[8] and fd[9] and fd[10] then + for k,v in next,fd do + parameters[k]=v + end + end + parameters.designsize=(metadata.designsize or 10)*65536 + parameters.ascender=abs(metadata.ascender or 0) + parameters.descender=abs(metadata.descender or 0) + parameters.units=1000 + properties.spacer=spacer + properties.encodingbytes=2 + properties.format=fonts.formats[filename] or "type1" + properties.filename=filename + properties.fontname=fontname + properties.fullname=fullname + properties.psname=fullname + properties.name=filename or fullname or fontname + if next(characters) then + return { + characters=characters, + descriptions=descriptions, + parameters=parameters, + resources=resources, + properties=properties, + goodies=goodies, + } + end + end + return nil +end +function afm.setfeatures(tfmdata,features) + local okay=constructors.initializefeatures("afm",tfmdata,features,trace_features,report_afm) + if okay then + return constructors.collectprocessors("afm",tfmdata,features,trace_features,report_afm) + else + return {} + end +end +local function checkfeatures(specification) +end +local function afmtotfm(specification) + local afmname=specification.filename or specification.name + if specification.forced=="afm" or specification.format=="afm" then + if trace_loading then + report_afm("forcing afm format for %a",afmname) + end + else + local tfmname=findbinfile(afmname,"ofm") or "" + if tfmname~="" then + if trace_loading then + report_afm("fallback from afm to tfm for %a",afmname) + end + return + end + end + if afmname~="" then + local features=constructors.checkedfeatures("afm",specification.features.normal) + specification.features.normal=features + constructors.hashinstance(specification,true) + specification=definers.resolve(specification) + local cache_id=specification.hash + local tfmdata=containers.read(constructors.cache,cache_id) + if not tfmdata then + local rawdata=afm.load(afmname) + if rawdata and next(rawdata) then + adddimensions(rawdata) + tfmdata=copytotfm(rawdata) + if tfmdata and next(tfmdata) then + local shared=tfmdata.shared + if not shared then + shared={} + tfmdata.shared=shared + end + shared.rawdata=rawdata + shared.features=features + shared.processes=afm.setfeatures(tfmdata,features) + end + elseif trace_loading then + report_afm("no (valid) afm file found with name %a",afmname) + end + tfmdata=containers.write(constructors.cache,cache_id,tfmdata) + end + return tfmdata + end +end +local function read_from_afm(specification) + local tfmdata=afmtotfm(specification) + if tfmdata then + tfmdata.properties.name=specification.name + tfmdata=constructors.scale(tfmdata,specification) + local allfeatures=tfmdata.shared.features or specification.features.normal + constructors.applymanipulators("afm",tfmdata,allfeatures,trace_features,report_afm) + fonts.loggers.register(tfmdata,'afm',specification) + end + return tfmdata +end +local function prepareligatures(tfmdata,ligatures,value) + if value then + local descriptions=tfmdata.descriptions + for unicode,character in next,tfmdata.characters do + local description=descriptions[unicode] + local dligatures=description.ligatures + if dligatures then + local cligatures=character.ligatures + if not cligatures then + cligatures={} + character.ligatures=cligatures + end + for unicode,ligature in next,dligatures do + cligatures[unicode]={ + char=ligature, + type=0 + } + end + end + end + end +end +local function preparekerns(tfmdata,kerns,value) + if value then + local rawdata=tfmdata.shared.rawdata + local resources=rawdata.resources + local unicodes=resources.unicodes + local descriptions=tfmdata.descriptions + for u,chr in next,tfmdata.characters do + local d=descriptions[u] + local newkerns=d[kerns] + if newkerns then + local kerns=chr.kerns + if not kerns then + kerns={} + chr.kerns=kerns + end + for k,v in next,newkerns do + local uk=unicodes[k] + if uk then + kerns[uk]=v + end + end + end + end + end +end +local list={ + [0x0027]=0x2019, +} +local function texreplacements(tfmdata,value) + local descriptions=tfmdata.descriptions + local characters=tfmdata.characters + for k,v in next,list do + characters [k]=characters [v] + descriptions[k]=descriptions[v] + end +end +local function ligatures (tfmdata,value) prepareligatures(tfmdata,'ligatures',value) end +local function texligatures(tfmdata,value) prepareligatures(tfmdata,'texligatures',value) end +local function kerns (tfmdata,value) preparekerns (tfmdata,'kerns',value) end +local function extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns',value) end +registerafmfeature { + name="liga", + description="traditional ligatures", + initializers={ + base=ligatures, + node=ligatures, + } +} +registerafmfeature { + name="kern", + description="intercharacter kerning", + initializers={ + base=kerns, + node=kerns, + } +} +registerafmfeature { + name="extrakerns", + description="additional intercharacter kerning", + initializers={ + base=extrakerns, + node=extrakerns, + } +} +registerafmfeature { + name='tlig', + description='tex ligatures', + initializers={ + base=texligatures, + node=texligatures, + } +} +registerafmfeature { + name='trep', + description='tex replacements', + initializers={ + base=texreplacements, + node=texreplacements, + } +} +local check_tfm=readers.check_tfm +fonts.formats.afm="type1" +fonts.formats.pfb="type1" +local function check_afm(specification,fullname) + local foundname=findbinfile(fullname,'afm') or "" + if foundname=="" then + foundname=fonts.names.getfilename(fullname,"afm") or "" + end + if foundname=="" and afm.autoprefixed then + local encoding,shortname=match(fullname,"^(.-)%-(.*)$") + if encoding and shortname and fonts.encodings.known[encoding] then + shortname=findbinfile(shortname,'afm') or "" + if shortname~="" then + foundname=shortname + if trace_defining then + report_afm("stripping encoding prefix from filename %a",afmname) + end + end + end + end + if foundname~="" then + specification.filename=foundname + specification.format="afm" + return read_from_afm(specification) + end +end +function readers.afm(specification,method) + local fullname,tfmdata=specification.filename or "",nil + if fullname=="" then + local forced=specification.forced or "" + if forced~="" then + tfmdata=check_afm(specification,specification.name.."."..forced) + end + if not tfmdata then + method=method or definers.method or "afm or tfm" + if method=="tfm" then + tfmdata=check_tfm(specification,specification.name) + elseif method=="afm" then + tfmdata=check_afm(specification,specification.name) + elseif method=="tfm or afm" then + tfmdata=check_tfm(specification,specification.name) or check_afm(specification,specification.name) + else + tfmdata=check_afm(specification,specification.name) or check_tfm(specification,specification.name) + end + end + else + tfmdata=check_afm(specification,fullname) + end + return tfmdata +end +function readers.pfb(specification,method) + local original=specification.specification + if trace_defining then + report_afm("using afm reader for %a",original) + end + specification.specification=gsub(original,"%.pfb",".afm") + specification.forced="afm" + return readers.afm(specification,method) +end + +end -- closure + +do -- begin closure to overcome local limits and interference + if not modules then modules={} end modules ['luatex-fonts-tfm']={ version=1.001, comment="companion to luatex-*.tex", |