diff options
Diffstat (limited to 'src/fontloader/runtime')
| -rw-r--r-- | src/fontloader/runtime/fontloader-reference.lua | 2340 |
1 files changed, 1183 insertions, 1157 deletions
diff --git a/src/fontloader/runtime/fontloader-reference.lua b/src/fontloader/runtime/fontloader-reference.lua index 5f35ded..3e6f1d1 100644 --- a/src/fontloader/runtime/fontloader-reference.lua +++ b/src/fontloader/runtime/fontloader-reference.lua @@ -1,6 +1,6 @@ -- merged file : c:/data/develop/context/sources/luatex-fonts-merged.lua -- parent file : c:/data/develop/context/sources/luatex-fonts.lua --- merge date : 05/01/16 09:52:32 +-- merge date : 05/08/16 17:30:49 do -- begin closure to overcome local limits and interference @@ -6973,1137 +6973,6 @@ 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 match,gmatch,lower,gsub,strip,find=string.match,string.gmatch,string.lower,string.gsub,string.strip,string.find -local char,byte,sub=string.char,string.byte,string.sub -local abs=math.abs -local bxor,rshift=bit32.bxor,bit32.rshift -local P,S,R,Cmt,C,Ct,Cs,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.R,lpeg.Cmt,lpeg.C,lpeg.Ct,lpeg.Cs,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 setmetatableindex=table.setmetatableindex -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=1.501 -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 overloads=fonts.mappings.overloads -local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes -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.monospaced=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 get_indexes -do - local fontloader=fontloader - local get_indexes_old=false - if fontloader then - local font_to_table=fontloader.to_table - local open_font=fontloader.open - local close_font=fontloader.close - get_indexes_old=function(data,pfbname) - local pfbblob=open_font(pfbname) - if pfbblob then - local characters=data.characters - local pfbdata=font_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 - close_font(pfbblob) - elseif trace_loading then - report_afm("invalid pfb file %a",pfbname) - end - end - end - local n,m - local progress=function(str,position,name,size) - local forward=position+tonumber(size)+3+2 - n=n+1 - if n>=m then - return #str,name - elseif forward<#str then - return forward,name - else - return #str,name - end - end - local initialize=function(str,position,size) - n=0 - m=tonumber(size) - return position+1 - end - local charstrings=P("/CharStrings") - local name=P("/")*C((R("az")+R("AZ")+R("09")+S("-_."))^1) - local size=C(R("09")^1) - local spaces=P(" ")^1 - local p_filternames=Ct ( - (1-charstrings)^0*charstrings*spaces*Cmt(size,initialize)*(Cmt(name*P(" ")^1*C(R("09")^1),progress)+P(1))^1 - ) - local decrypt - do - local r,c1,c2,n=0,0,0,0 - local function step(c) - local cipher=byte(c) - local plain=bxor(cipher,rshift(r,8)) - r=((cipher+r)*c1+c2)%65536 - return char(plain) - end - decrypt=function(binary) - r,c1,c2,n=55665,52845,22719,4 - binary=gsub(binary,".",step) - return sub(binary,n+1) - end - end - local function loadpfbvector(filename) - local data=io.loaddata(resolvers.findfile(filename)) - if not find(data,"!PS%-AdobeFont%-") then - print("no font",filename) - return - end - if not data then - print("no data",filename) - return - end - local ascii,binary=match(data,"(.*)eexec%s+......(.*)") - if not binary then - print("no binary",filename) - return - end - binary=decrypt(binary,4) - local vector=lpegmatch(p_filternames,binary) - vector[0]=table.remove(vector,1) - if not vector then - print("no vector",filename) - return - end - return vector - end - get_indexes=function(data,pfbname) - local vector=loadpfbvector(pfbname) - if vector then - local characters=data.characters - if trace_loading then - report_afm("getting index data from %a",pfbname) - end - for index=1,#vector do - local name=vector[index] - 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 - end - if get_indexes_old then - afm.use_new_indexer=true - get_indexes_new=get_indexes - get_indexes=function(data,pfbname) - if afm.use_new_indexer then - return get_indexes_new(data,pfbname) - else - return get_indexes_old(data,pfbname) - end - end - 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,fixnames -function afm.load(filename) - filename=resolvers.findfile(filename,'afm') or "" - if filename~="" and not fonts.names.ignoredfile(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 - data.resources.filename=resolvers.unresolve(pfbname) - 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) - fixnames(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.resources.unicodes=nil - data=containers.write(afm.cache,name,data) - data=containers.read(afm.cache,name) - end - if applyruntimefixes and data then - applyruntimefixes(filename,data) - 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={} - local 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 - 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.private=private -end -local everywhere={ ["*"]={ ["*"]=true } } -local noflags={ false,false,false,false } -afm.experimental_normalize=false -normalize=function(data) - if type(afm.experimental_normalize)=="function" then - afm.experimental_normalize(data) - end -end -fixnames=function(data) - for k,v in next,data.descriptions do - local n=v.name - local r=overloads[n] - if r then - local name=r.name - if trace_indexing then - report_afm("renaming characters %a to %a",n,name) - end - v.name=name - v.unicode=r.unicode - end - end -end -local addthem=function(rawdata,ligatures) - if ligatures then - local descriptions=rawdata.descriptions - local resources=rawdata.resources - local unicodes=resources.unicodes - 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=0x0020 - local emdash=0x2014 - local spacer="space" - local spaceunits=500 - local monospaced=metadata.monospaced - 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 and italicangle~=0 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=0x0078 - 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 addtables(data) - local resources=data.resources - local lookuptags=resources.lookuptags - local unicodes=resources.unicodes - if not lookuptags then - lookuptags={} - resources.lookuptags=lookuptags - end - setmetatableindex(lookuptags,function(t,k) - local v=type(k)=="number" and ("lookup "..k) or k - t[k]=v - return v - end) - if not unicodes then - unicodes={} - resources.unicodes=unicodes - setmetatableindex(unicodes,function(t,k) - setmetatableindex(unicodes,nil) - for u,d in next,data.descriptions do - local n=d.name - if n then - t[n]=u - end - end - return rawget(t,k) - end) - end - constructors.addcoreunicodes(unicodes) -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 - addtables(rawdata) - 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 - local hasligatures=false - 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 - hasligatures=true - end - end - tfmdata.properties.hasligatures=hasligatures - 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 - local haskerns=false - 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 - haskerns=true - end - end - tfmdata.properties.haskerns=haskerns - 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 ['font-afk']={ - version=1.001, - comment="companion to font-afm.lua", - author="Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright="PRAGMA ADE / ConTeXt Development Team", - license="see context related readme files", - dataonly=true, -} -local allocate=utilities.storage.allocate -fonts.handlers.afm.helpdata={ - ligatures=allocate { - ['f']={ - { 'f','ff' }, - { 'i','fi' }, - { 'l','fl' }, - }, - ['ff']={ - { 'i','ffi' } - }, - ['fi']={ - { 'i','fii' } - }, - ['fl']={ - { 'i','fli' } - }, - ['s']={ - { 't','st' } - }, - ['i']={ - { 'j','ij' } - }, - }, - texligatures=allocate { - ['quoteleft']={ - { 'quoteleft','quotedblleft' } - }, - ['quoteright']={ - { 'quoteright','quotedblright' } - }, - ['hyphen']={ - { 'hyphen','endash' } - }, - ['endash']={ - { 'hyphen','emdash' } - } - }, - leftkerned=allocate { - AEligature="A",aeligature="a", - OEligature="O",oeligature="o", - IJligature="I",ijligature="i", - AE="A",ae="a", - OE="O",oe="o", - IJ="I",ij="i", - Ssharp="S",ssharp="s", - }, - rightkerned=allocate { - AEligature="E",aeligature="e", - OEligature="E",oeligature="e", - IJligature="J",ijligature="j", - AE="E",ae="e", - OE="E",oe="e", - IJ="J",ij="j", - Ssharp="S",ssharp="s", - }, - bothkerned=allocate { - Acircumflex="A",acircumflex="a", - Ccircumflex="C",ccircumflex="c", - Ecircumflex="E",ecircumflex="e", - Gcircumflex="G",gcircumflex="g", - Hcircumflex="H",hcircumflex="h", - Icircumflex="I",icircumflex="i", - Jcircumflex="J",jcircumflex="j", - Ocircumflex="O",ocircumflex="o", - Scircumflex="S",scircumflex="s", - Ucircumflex="U",ucircumflex="u", - Wcircumflex="W",wcircumflex="w", - Ycircumflex="Y",ycircumflex="y", - Agrave="A",agrave="a", - Egrave="E",egrave="e", - Igrave="I",igrave="i", - Ograve="O",ograve="o", - Ugrave="U",ugrave="u", - Ygrave="Y",ygrave="y", - Atilde="A",atilde="a", - Itilde="I",itilde="i", - Otilde="O",otilde="o", - Utilde="U",utilde="u", - Ntilde="N",ntilde="n", - Adiaeresis="A",adiaeresis="a",Adieresis="A",adieresis="a", - Ediaeresis="E",ediaeresis="e",Edieresis="E",edieresis="e", - Idiaeresis="I",idiaeresis="i",Idieresis="I",idieresis="i", - Odiaeresis="O",odiaeresis="o",Odieresis="O",odieresis="o", - Udiaeresis="U",udiaeresis="u",Udieresis="U",udieresis="u", - Ydiaeresis="Y",ydiaeresis="y",Ydieresis="Y",ydieresis="y", - Aacute="A",aacute="a", - Cacute="C",cacute="c", - Eacute="E",eacute="e", - Iacute="I",iacute="i", - Lacute="L",lacute="l", - Nacute="N",nacute="n", - Oacute="O",oacute="o", - Racute="R",racute="r", - Sacute="S",sacute="s", - Uacute="U",uacute="u", - Yacute="Y",yacute="y", - Zacute="Z",zacute="z", - Dstroke="D",dstroke="d", - Hstroke="H",hstroke="h", - Tstroke="T",tstroke="t", - Cdotaccent="C",cdotaccent="c", - Edotaccent="E",edotaccent="e", - Gdotaccent="G",gdotaccent="g", - Idotaccent="I",idotaccent="i", - Zdotaccent="Z",zdotaccent="z", - Amacron="A",amacron="a", - Emacron="E",emacron="e", - Imacron="I",imacron="i", - Omacron="O",omacron="o", - Umacron="U",umacron="u", - Ccedilla="C",ccedilla="c", - Kcedilla="K",kcedilla="k", - Lcedilla="L",lcedilla="l", - Ncedilla="N",ncedilla="n", - Rcedilla="R",rcedilla="r", - Scedilla="S",scedilla="s", - Tcedilla="T",tcedilla="t", - Ohungarumlaut="O",ohungarumlaut="o", - Uhungarumlaut="U",uhungarumlaut="u", - Aogonek="A",aogonek="a", - Eogonek="E",eogonek="e", - Iogonek="I",iogonek="i", - Uogonek="U",uogonek="u", - Aring="A",aring="a", - Uring="U",uring="u", - Abreve="A",abreve="a", - Ebreve="E",ebreve="e", - Gbreve="G",gbreve="g", - Ibreve="I",ibreve="i", - Obreve="O",obreve="o", - Ubreve="U",ubreve="u", - Ccaron="C",ccaron="c", - Dcaron="D",dcaron="d", - Ecaron="E",ecaron="e", - Lcaron="L",lcaron="l", - Ncaron="N",ncaron="n", - Rcaron="R",rcaron="r", - Scaron="S",scaron="s", - Tcaron="T",tcaron="t", - Zcaron="Z",zcaron="z", - dotlessI="I",dotlessi="i", - dotlessJ="J",dotlessj="j", - AEligature="AE",aeligature="ae",AE="AE",ae="ae", - OEligature="OE",oeligature="oe",OE="OE",oe="oe", - IJligature="IJ",ijligature="ij",IJ="IJ",ij="ij", - Lstroke="L",lstroke="l",Lslash="L",lslash="l", - Ostroke="O",ostroke="o",Oslash="O",oslash="o", - Ssharp="SS",ssharp="ss", - Aumlaut="A",aumlaut="a", - Eumlaut="E",eumlaut="e", - Iumlaut="I",iumlaut="i", - Oumlaut="O",oumlaut="o", - Uumlaut="U",uumlaut="u", - } -} - -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", @@ -15827,7 +14696,6 @@ function otf.load(filename,sub,featurefile) otfreaders.expand(data) otfreaders.addunicodetable(data) enhancers.apply(data,filename,data) - constructors.addcoreunicodes(unicodes) if applyruntimefixes then applyruntimefixes(filename,data) end @@ -16658,6 +15526,7 @@ registerotffeature { base=featuresinitializer, } } +otf.basemodeinitializer=featuresinitializer end -- closure @@ -17713,11 +16582,11 @@ local function inject_everything(head,where) insert_node_after(pre,n,newkern(rightkern)) done=true end - end - if hasmarks then - local pm=i.markbasenode - if pm then - processmark(pm,current,i) + if hasmarks then + local pm=i.markbasenode + if pm then + processmark(pm,current,i) + end end end end @@ -17743,11 +16612,11 @@ local function inject_everything(head,where) insert_node_after(post,n,newkern(rightkern)) done=true end - end - if hasmarks then - local pm=i.markbasenode - if pm then - processmark(pm,current,i) + if hasmarks then + local pm=i.markbasenode + if pm then + processmark(pm,current,i) + end end end end @@ -17773,11 +16642,11 @@ local function inject_everything(head,where) insert_node_after(replace,n,newkern(rightkern)) done=true end - end - if hasmarks then - local pm=i.markbasenode - if pm then - processmark(pm,current,i) + if hasmarks then + local pm=i.markbasenode + if pm then + processmark(pm,current,i) + end end end end @@ -21284,6 +20153,8 @@ registerotffeature { node=featuresprocessor, } } +otf.nodemodeinitializer=featuresinitializer +otf.featuresprocessor=featuresprocessor otf.handlers=handlers local setspacekerns=nodes.injections.setspacekerns if not setspacekerns then os.exit() end function otf.handlers.trigger_space_kerns(head,start,dataset,sequence,_,_,_,_,font,attr) @@ -23381,6 +22252,1160 @@ end -- closure do -- begin closure to overcome local limits and interference +if not modules then modules={} end modules ['font-one']={ + 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 match,gmatch,lower,gsub,strip,find=string.match,string.gmatch,string.lower,string.gsub,string.strip,string.find +local char,byte,sub=string.char,string.byte,string.sub +local abs=math.abs +local bxor,rshift=bit32.bxor,bit32.rshift +local P,S,R,Cmt,C,Ct,Cs,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.R,lpeg.Cmt,lpeg.C,lpeg.Ct,lpeg.Cs,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 setmetatableindex=table.setmetatableindex +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 otf=fonts.handlers.otf +local otfreaders=otf.readers +local otfenhancers=otf.enhancers +local afmfeatures=constructors.newfeatures("afm") +local registerafmfeature=afmfeatures.register +afm.version=1.505 +afm.cache=containers.define("fonts","afm",afm.version,true) +afm.autoprefixed=true +afm.helpdata={} +afm.syncspace=true +local overloads=fonts.mappings.overloads +local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes +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.monospaced=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 get_indexes +do + local n,m + local progress=function(str,position,name,size) + local forward=position+tonumber(size)+3+2 + n=n+1 + if n>=m then + return #str,name + elseif forward<#str then + return forward,name + else + return #str,name + end + end + local initialize=function(str,position,size) + n=0 + m=tonumber(size) + return position+1 + end + local charstrings=P("/CharStrings") + local name=P("/")*C((R("az")+R("AZ")+R("09")+S("-_."))^1) + local size=C(R("09")^1) + local spaces=P(" ")^1 + local p_filternames=Ct ( + (1-charstrings)^0*charstrings*spaces*Cmt(size,initialize)*(Cmt(name*P(" ")^1*C(R("09")^1),progress)+P(1))^1 + ) + local decrypt + do + local r,c1,c2,n=0,0,0,0 + local function step(c) + local cipher=byte(c) + local plain=bxor(cipher,rshift(r,8)) + r=((cipher+r)*c1+c2)%65536 + return char(plain) + end + decrypt=function(binary) + r,c1,c2,n=55665,52845,22719,4 + binary=gsub(binary,".",step) + return sub(binary,n+1) + end + end + local function loadpfbvector(filename) + local data=io.loaddata(resolvers.findfile(filename)) + if not find(data,"!PS%-AdobeFont%-") then + print("no font",filename) + return + end + if not data then + print("no data",filename) + return + end + local ascii,binary=match(data,"(.*)eexec%s+......(.*)") + if not binary then + print("no binary",filename) + return + end + binary=decrypt(binary,4) + local vector=lpegmatch(p_filternames,binary) + vector[0]=table.remove(vector,1) + if not vector then + print("no vector",filename) + return + end + return vector + end + get_indexes=function(data,pfbname) + local vector=loadpfbvector(pfbname) + if vector then + local characters=data.characters + if trace_loading then + report_afm("getting index data from %a",pfbname) + end + for index=1,#vector do + local name=vector[index] + 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 + 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,unify,normalize,fixnames,addligatures,addtexligatures +function afm.load(filename) + filename=resolvers.findfile(filename,'afm') or "" + if filename~="" and not fonts.names.ignoredfile(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 + data.resources.filename=resolvers.unresolve(pfbname) + get_indexes(data,pfbname) + elseif trace_loading then + report_afm("no pfb file for %a",filename) + end + if trace_loading then + report_afm("unifying %a",filename) + end + unify(data,filename) + if trace_loading then + report_afm("add ligatures") + end + addligatures(data) + if trace_loading then + report_afm("add extra kerns") + end + addkerns(data) + if trace_loading then + report_afm("normalizing") + end + normalize(data) + if trace_loading then + report_afm("fixing names") + end + fixnames(data) + if trace_loading then + report_afm("add tounicode data") + end + fonts.mappings.addtounicode(data,filename) + otfreaders.pack(data) + 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 + if data then + otfreaders.unpack(data) + otfreaders.expand(data) + otfreaders.addunicodetable(data) + otfenhancers.apply(data,filename,data) + if applyruntimefixes then + applyruntimefixes(filename,data) + 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={} + local 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 + 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.private=private +end +local everywhere={ ["*"]={ ["*"]=true } } +local noflags={ false,false,false,false } +normalize=function(data) + local ligatures=setmetatableindex("table") + local kerns=setmetatableindex("table") + local extrakerns=setmetatableindex("table") + for u,c in next,data.descriptions do + local l=c.ligatures + local k=c.kerns + local e=c.extrakerns + if l then + ligatures[u]=l + for u,v in next,l do + l[u]={ ligature=v } + end + c.ligatures=nil + end + if k then + kerns[u]=k + for u,v in next,k do + k[u]=v + end + c.kerns=nil + end + if e then + extrakerns[u]=e + for u,v in next,e do + e[u]=v + end + c.extrakerns=nil + end + end + local features={ + gpos={}, + gsub={}, + } + local sequences={ + } + if next(ligatures) then + features.gsub.liga=everywhere + data.properties.hasligatures=true + sequences[#sequences+1]={ + features={ + liga=everywhere, + }, + flags=noflags, + name="s_s_0", + nofsteps=1, + order={ "liga" }, + type="gsub_ligature", + steps={ + { + coverage=ligatures, + }, + }, + } + end + if next(kerns) then + features.gpos.kern=everywhere + data.properties.haskerns=true + sequences[#sequences+1]={ + features={ + kern=everywhere, + }, + flags=noflags, + name="p_s_0", + nofsteps=1, + order={ "kern" }, + type="gpos_pair", + steps={ + { + format="kern", + coverage=kerns, + }, + }, + } + end + if next(extrakerns) then + features.gpos.extrakerns=everywhere + data.properties.haskerns=true + sequences[#sequences+1]={ + features={ + extrakerns=everywhere, + }, + flags=noflags, + name="p_s_1", + nofsteps=1, + order={ "extrakerns" }, + type="gpos_pair", + steps={ + { + format="kern", + coverage=extrakerns, + }, + }, + } + end + data.resources.features=features + data.resources.sequences=sequences +end +fixnames=function(data) + for k,v in next,data.descriptions do + local n=v.name + local r=overloads[n] + if r then + local name=r.name + if trace_indexing then + report_afm("renaming characters %a to %a",n,name) + end + v.name=name + v.unicode=r.unicode + end + end +end +local addthem=function(rawdata,ligatures) + if ligatures then + local descriptions=rawdata.descriptions + local resources=rawdata.resources + local unicodes=resources.unicodes + 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=0x0020 + local emdash=0x2014 + local spacer="space" + local spaceunits=500 + local monospaced=metadata.monospaced + 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 and italicangle~=0 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=0x0078 + 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 addtables(data) + local resources=data.resources + local lookuptags=resources.lookuptags + local unicodes=resources.unicodes + if not lookuptags then + lookuptags={} + resources.lookuptags=lookuptags + end + setmetatableindex(lookuptags,function(t,k) + local v=type(k)=="number" and ("lookup "..k) or k + t[k]=v + return v + end) + if not unicodes then + unicodes={} + resources.unicodes=unicodes + setmetatableindex(unicodes,function(t,k) + setmetatableindex(unicodes,nil) + for u,d in next,data.descriptions do + local n=d.name + if n then + t[n]=u + end + end + return rawget(t,k) + end) + end + constructors.addcoreunicodes(unicodes) +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 + addtables(rawdata) + 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.dynamics={} + tfmdata.changed={} + 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 + local hasligatures=false + 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 + hasligatures=true + end + end + tfmdata.properties.hasligatures=hasligatures + 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 + local haskerns=false + 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 + haskerns=true + end + end + tfmdata.properties.haskerns=haskerns + 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 extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns',value) end +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, + } +} +registerafmfeature { + name="features", + description="features", + default=true, + initializers={ + node=otf.nodemodeinitializer, + base=otf.basemodeinitializer, + }, + processors={ + node=otf.featuresprocessor, + } +} +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 ['font-afk']={ + version=1.001, + comment="companion to font-afm.lua", + author="Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright="PRAGMA ADE / ConTeXt Development Team", + license="see context related readme files", + dataonly=true, +} +local allocate=utilities.storage.allocate +fonts.handlers.afm.helpdata={ + ligatures=allocate { + ['f']={ + { 'f','ff' }, + { 'i','fi' }, + { 'l','fl' }, + }, + ['ff']={ + { 'i','ffi' } + }, + ['fi']={ + { 'i','fii' } + }, + ['fl']={ + { 'i','fli' } + }, + ['s']={ + { 't','st' } + }, + ['i']={ + { 'j','ij' } + }, + }, + texligatures=allocate { + ['quoteleft']={ + { 'quoteleft','quotedblleft' } + }, + ['quoteright']={ + { 'quoteright','quotedblright' } + }, + ['hyphen']={ + { 'hyphen','endash' } + }, + ['endash']={ + { 'hyphen','emdash' } + } + }, + leftkerned=allocate { + AEligature="A",aeligature="a", + OEligature="O",oeligature="o", + IJligature="I",ijligature="i", + AE="A",ae="a", + OE="O",oe="o", + IJ="I",ij="i", + Ssharp="S",ssharp="s", + }, + rightkerned=allocate { + AEligature="E",aeligature="e", + OEligature="E",oeligature="e", + IJligature="J",ijligature="j", + AE="E",ae="e", + OE="E",oe="e", + IJ="J",ij="j", + Ssharp="S",ssharp="s", + }, + bothkerned=allocate { + Acircumflex="A",acircumflex="a", + Ccircumflex="C",ccircumflex="c", + Ecircumflex="E",ecircumflex="e", + Gcircumflex="G",gcircumflex="g", + Hcircumflex="H",hcircumflex="h", + Icircumflex="I",icircumflex="i", + Jcircumflex="J",jcircumflex="j", + Ocircumflex="O",ocircumflex="o", + Scircumflex="S",scircumflex="s", + Ucircumflex="U",ucircumflex="u", + Wcircumflex="W",wcircumflex="w", + Ycircumflex="Y",ycircumflex="y", + Agrave="A",agrave="a", + Egrave="E",egrave="e", + Igrave="I",igrave="i", + Ograve="O",ograve="o", + Ugrave="U",ugrave="u", + Ygrave="Y",ygrave="y", + Atilde="A",atilde="a", + Itilde="I",itilde="i", + Otilde="O",otilde="o", + Utilde="U",utilde="u", + Ntilde="N",ntilde="n", + Adiaeresis="A",adiaeresis="a",Adieresis="A",adieresis="a", + Ediaeresis="E",ediaeresis="e",Edieresis="E",edieresis="e", + Idiaeresis="I",idiaeresis="i",Idieresis="I",idieresis="i", + Odiaeresis="O",odiaeresis="o",Odieresis="O",odieresis="o", + Udiaeresis="U",udiaeresis="u",Udieresis="U",udieresis="u", + Ydiaeresis="Y",ydiaeresis="y",Ydieresis="Y",ydieresis="y", + Aacute="A",aacute="a", + Cacute="C",cacute="c", + Eacute="E",eacute="e", + Iacute="I",iacute="i", + Lacute="L",lacute="l", + Nacute="N",nacute="n", + Oacute="O",oacute="o", + Racute="R",racute="r", + Sacute="S",sacute="s", + Uacute="U",uacute="u", + Yacute="Y",yacute="y", + Zacute="Z",zacute="z", + Dstroke="D",dstroke="d", + Hstroke="H",hstroke="h", + Tstroke="T",tstroke="t", + Cdotaccent="C",cdotaccent="c", + Edotaccent="E",edotaccent="e", + Gdotaccent="G",gdotaccent="g", + Idotaccent="I",idotaccent="i", + Zdotaccent="Z",zdotaccent="z", + Amacron="A",amacron="a", + Emacron="E",emacron="e", + Imacron="I",imacron="i", + Omacron="O",omacron="o", + Umacron="U",umacron="u", + Ccedilla="C",ccedilla="c", + Kcedilla="K",kcedilla="k", + Lcedilla="L",lcedilla="l", + Ncedilla="N",ncedilla="n", + Rcedilla="R",rcedilla="r", + Scedilla="S",scedilla="s", + Tcedilla="T",tcedilla="t", + Ohungarumlaut="O",ohungarumlaut="o", + Uhungarumlaut="U",uhungarumlaut="u", + Aogonek="A",aogonek="a", + Eogonek="E",eogonek="e", + Iogonek="I",iogonek="i", + Uogonek="U",uogonek="u", + Aring="A",aring="a", + Uring="U",uring="u", + Abreve="A",abreve="a", + Ebreve="E",ebreve="e", + Gbreve="G",gbreve="g", + Ibreve="I",ibreve="i", + Obreve="O",obreve="o", + Ubreve="U",ubreve="u", + Ccaron="C",ccaron="c", + Dcaron="D",dcaron="d", + Ecaron="E",ecaron="e", + Lcaron="L",lcaron="l", + Ncaron="N",ncaron="n", + Rcaron="R",rcaron="r", + Scaron="S",scaron="s", + Tcaron="T",tcaron="t", + Zcaron="Z",zcaron="z", + dotlessI="I",dotlessi="i", + dotlessJ="J",dotlessj="j", + AEligature="AE",aeligature="ae",AE="AE",ae="ae", + OEligature="OE",oeligature="oe",OE="OE",oe="oe", + IJligature="IJ",ijligature="ij",IJ="IJ",ij="ij", + Lstroke="L",lstroke="l",Lslash="L",lslash="l", + Ostroke="O",ostroke="o",Oslash="O",oslash="o", + Ssharp="SS",ssharp="ss", + Aumlaut="A",aumlaut="a", + Eumlaut="E",eumlaut="e", + Iumlaut="I",iumlaut="i", + Oumlaut="O",oumlaut="o", + Uumlaut="U",uumlaut="u", + } +} + +end -- closure + +do -- begin closure to overcome local limits and interference + if not modules then modules={} end modules ['font-lua']={ version=1.001, comment="companion to font-ini.mkiv", @@ -24164,17 +24189,18 @@ function nodes.handlers.nodepass(head) local variant=hash[getchar(p)] if variant then setchar(p,variant) - if not redundant then - redundant={ n } - else - redundant[#redundant+1]=n - end end end end + if not redundant then + redundant={ n } + else + redundant[#redundant+1]=n + end end end end + local nofbasefonts=#basefonts if redundant then for i=1,#redundant do local r=redundant[i] @@ -24185,8 +24211,8 @@ function nodes.handlers.nodepass(head) else setlink(p,n) end - if b>0 then - for i=1,b do + if nofbasefonts>0 then + for i=1,nofbasefonts do local bi=basefonts[i] if r==bi[1] then bi[1]=n @@ -24230,8 +24256,8 @@ function nodes.handlers.nodepass(head) end end end - if basemodepass and #basefonts>0 then - for i=1,#basefonts do + if basemodepass and nofbasefonts>0 then + for i=1,nofbasefonts do local range=basefonts[i] local start=range[1] local stop=range[2] |