diff options
Diffstat (limited to 'src/fontloader/misc/fontloader-font-one.lua')
| -rw-r--r-- | src/fontloader/misc/fontloader-font-one.lua | 414 |
1 files changed, 16 insertions, 398 deletions
diff --git a/src/fontloader/misc/fontloader-font-one.lua b/src/fontloader/misc/fontloader-font-one.lua index b2446db..77f2560 100644 --- a/src/fontloader/misc/fontloader-font-one.lua +++ b/src/fontloader/misc/fontloader-font-one.lua @@ -55,7 +55,7 @@ local otfenhancers = otf.enhancers local afmfeatures = constructors.newfeatures("afm") local registerafmfeature = afmfeatures.register -afm.version = 1.507 -- incrementing this number one up will force a re-cache +afm.version = 1.512 -- incrementing this number one up will force a re-cache afm.cache = containers.define("fonts", "afm", afm.version, true) afm.autoprefixed = true -- this will become false some day (catches texnansi-blabla.*) @@ -67,380 +67,6 @@ local overloads = fonts.mappings.overloads local applyruntimefixes = fonts.treatments and fonts.treatments.applyfixes --[[ldx-- -<p>We start with the basic reader which we give a name similar to the built in <l n='tfm'/> -and <l n='otf'/> reader.</p> ---ldx]]-- - --- Comment FONTIDENTIFIER LMMATHSYMBOLS10 --- Comment CODINGSCHEME TEX MATH SYMBOLS --- Comment DESIGNSIZE 10.0 pt --- Comment CHECKSUM O 4261307036 --- Comment SPACE 0 plus 0 minus 0 --- Comment QUAD 1000 --- Comment EXTRASPACE 0 --- Comment NUM 676.508 393.732 443.731 --- Comment DENOM 685.951 344.841 --- Comment SUP 412.892 362.892 288.889 --- Comment SUB 150 247.217 --- Comment SUPDROP 386.108 --- Comment SUBDROP 50 --- Comment DELIM 2390 1010 --- Comment AXISHEIGHT 250 - ---[[ldx-- -<p>We now use a new (unfinished) pfb loader but I see no differences between the old -and new vectors (we actually had one bad vector with the old loader).</p> ---ldx]]-- - -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 - ) - - -- if one of first 4 not 0-9A-F then binary else hex - - 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 - - -- local pattern = Cs((P(1) / step)^1) - -- - -- decrypt = function(binary) - -- r, c1, c2, n = 55665, 52845, 22719, 4 - -- binary = lpegmatch(pattern,binary) - -- return sub(binary,n+1) - -- end - - end - - local function loadpfbvector(filename) - -- for the moment limited to encoding only - - 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 - ---[[ldx-- -<p>We start with the basic reader which we give a name similar to the built in <l n='tfm'/> -and <l n='otf'/> reader.</p> ---ldx]]-- - --- Comment FONTIDENTIFIER LMMATHSYMBOLS10 --- Comment CODINGSCHEME TEX MATH SYMBOLS --- Comment DESIGNSIZE 10.0 pt --- Comment CHECKSUM O 4261307036 --- Comment SPACE 0 plus 0 minus 0 --- Comment QUAD 1000 --- Comment EXTRASPACE 0 --- Comment NUM 676.508 393.732 443.731 --- Comment DENOM 685.951 344.841 --- Comment SUP 412.892 362.892 288.889 --- Comment SUB 150 247.217 --- Comment SUPDROP 386.108 --- Comment SUBDROP 50 --- Comment DELIM 2390 1010 --- Comment AXISHEIGHT 250 --- Comment DesignSize 12 (pts) --- Comment TFM designsize: 12 (in points) - -local parser do -- no need for a further speedup with locals - - local spacing = patterns.spacer - local lineend = patterns.newline - local number = spacing * (R("09") + S("."))^1 / tonumber - local name = spacing * C((1-spacing)^1) - local words = spacing * (1 - lineend)^1 / strip - local rest = (1 - lineend)^0 - local fontdata = Carg(1) - local semicolon = spacing * P(";") - local plus = P("plus") * number - local minus = P("minus") * number - - -- kern pairs - - local function addkernpair(data,one,two,value) - local chr = data.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 - - local p_kernpair = (fontdata * P("KPX") * name * name * number) / addkernpair - - -- char metrics - - local chr = false - local ind = 0 - - local function start() - ind = 0 - chr = { } - end - - local function stop() - ind = 0 - chr = false - end - - local function setindex(i) - if i < 0 then - ind = ind + 1 -- ? - else - ind = i - end - chr = { - index = ind - } - end - - local function setwidth(width) - chr.width = width - end - - local function setname(data,name) - data.characters[name] = chr - end - - local function setboundingbox(boundingbox) - chr.boundingbox = boundingbox - end - - local function setligature(plus,becomes) - local ligatures = chr.ligatures - if ligatures then - ligatures[plus] = becomes - else - chr.ligatures = { [plus] = becomes } - end - end - - local p_charmetric = ( ( - P("C") * number / setindex - + P("WX") * number / setwidth - + P("N") * fontdata * name / setname - + P("B") * Ct((number)^4) / setboundingbox - + P("L") * (name)^2 / setligature - ) * semicolon )^1 - - local p_charmetrics = P("StartCharMetrics") * number * (p_charmetric + (1-P("EndCharMetrics")))^0 * P("EndCharMetrics") - local p_kernpairs = P("StartKernPairs") * number * (p_kernpair + (1-P("EndKernPairs")) )^0 * P("EndKernPairs") - - local function set_1(data,key,a) data.metadata[lower(key)] = a end - local function set_2(data,key,a,b) data.metadata[lower(key)] = { a, b } end - local function set_3(data,key,a,b,c) data.metadata[lower(key)] = { a, b, c } end - - local p_parameters = P(false) - + P("FontName") * fontdata * words / function(data,line) - data.metadata.fontname = line - data.metadata.fullname = line - end - + P("ItalicAngle") * fontdata * number / function(data,angle) - data.metadata.italicangle = angle - end - + P("IsFixedPitch") * fontdata * name / function(data,pitch) - data.metadata.monospaced = toboolean(pitch,true) - end - + P("CharWidth") * fontdata * number / function(data,width) - data.metadata.charwidth = width - end - + P("XHeight") * fontdata * number / function(data,xheight) - data.metadata.xheight = xheight - end - + P("Descender") * fontdata * number / function(data,descender) - data.metadata.descender = descender - end - + P("Ascender") * fontdata * number / function(data,ascender) - data.metadata.ascender = ascender - end - + P("Comment") * spacing * ( P(false) - + (fontdata * C("DESIGNSIZE") * number * rest) / set_1 -- 1 - + (fontdata * C("TFM designsize") * number * rest) / set_1 - + (fontdata * C("DesignSize") * number * rest) / set_1 - + (fontdata * C("CODINGSCHEME") * words * rest) / set_1 -- - + (fontdata * C("CHECKSUM") * number * words * rest) / set_1 -- 2 - + (fontdata * C("SPACE") * number * plus * minus * rest) / set_3 -- 3 4 5 - + (fontdata * C("QUAD") * number * rest) / set_1 -- 6 - + (fontdata * C("EXTRASPACE") * number * rest) / set_1 -- 7 - + (fontdata * C("NUM") * number * number * number * rest) / set_3 -- 8 9 10 - + (fontdata * C("DENOM") * number * number * rest) / set_2 -- 11 12 - + (fontdata * C("SUP") * number * number * number * rest) / set_3 -- 13 14 15 - + (fontdata * C("SUB") * number * number * rest) / set_2 -- 16 17 - + (fontdata * C("SUPDROP") * number * rest) / set_1 -- 18 - + (fontdata * C("SUBDROP") * number * rest) / set_1 -- 19 - + (fontdata * C("DELIM") * number * number * rest) / set_2 -- 20 21 - + (fontdata * C("AXISHEIGHT") * number * rest) / set_1 -- 22 - ) - - parser = (P("StartFontMetrics") / start) - * ( - p_charmetrics - + p_kernpairs - + p_parameters - + (1-P("EndFontMetrics")) - )^0 - * (P("EndFontMetrics") / stop) - -end - - -local data = { - resources = { - filename = resolvers.unresolve(filename), --- version = afm.version, - creator = "context mkiv", - }, - properties = { - hasitalics = false, - }, - goodies = { - }, - metadata = { - filename = file.removesuffix(file.basename(filename)) - }, - characters = { - -- a temporary store - }, - descriptions = { - -- the final store - }, -} - -local function readafm(filename) - local ok, afmblob, size = resolvers.loadbinfile(filename) -- has logging - if ok and afmblob then - local data = { - resources = { - filename = resolvers.unresolve(filename), - version = afm.version, - creator = "context mkiv", - }, - properties = { - hasitalics = false, - }, - goodies = { - }, - metadata = { - filename = file.removesuffix(file.basename(filename)) - }, - characters = { - -- a temporary store - }, - descriptions = { - -- the final store - }, - } - lpegmatch(parser,afmblob,1,data) - return data - else - if trace_loading then - report_afm("no valid afm file %a",filename) - end - return nil - end -end - ---[[ldx-- <p>We cache files. Caching is taken care of in the loader. We cheat a bit by adding ligatures and kern information to the afm derived data. That way we can set them faster when defining a font.</p> @@ -500,16 +126,8 @@ function afm.load(filename) 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) + data = afm.readers.loadfont(filename,pfbname) 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) - -- data.resources.filename = "unset" -- better than loading the afm file - end - -- we now have all the data loaded applyenhancers(data,filename) -- otfreaders.addunicodetable(data) -- only when not done yet fonts.mappings.addtounicode(data,filename) @@ -961,29 +579,29 @@ local function copytotfm(data) end -- if metadata.sup then - local dummy = { 0, 0, 0} - parameters[ 1] = metadata.designsize or 0 - parameters[ 2] = metadata.checksum or 0 + local dummy = { 0, 0, 0 } + parameters[ 1] = metadata.designsize or 0 + parameters[ 2] = metadata.checksum or 0 parameters[ 3], parameters[ 4], - parameters[ 5] = unpack(metadata.space or dummy) - parameters[ 6] = metadata.quad or 0 - parameters[ 7] = metadata.extraspace or 0 + parameters[ 5] = unpack(metadata.space or dummy) + parameters[ 6] = metadata.quad or 0 + parameters[ 7] = metadata.extraspace or 0 parameters[ 8], parameters[ 9], - parameters[10] = unpack(metadata.num or dummy) + parameters[10] = unpack(metadata.num or dummy) parameters[11], - parameters[12] = unpack(metadata.denom or dummy) + parameters[12] = unpack(metadata.denom or dummy) parameters[13], parameters[14], - parameters[15] = unpack(metadata.sup or dummy) + parameters[15] = unpack(metadata.sup or dummy) parameters[16], - parameters[17] = unpack(metadata.sub or dummy) - parameters[18] = metadata.supdrop or 0 - parameters[19] = metadata.subdrop or 0 + parameters[17] = unpack(metadata.sub or dummy) + parameters[18] = metadata.supdrop or 0 + parameters[19] = metadata.subdrop or 0 parameters[20], - parameters[21] = unpack(metadata.delim or dummy) - parameters[22] = metadata.axisheight + parameters[21] = unpack(metadata.delim or dummy) + parameters[22] = metadata.axisheight or 0 end -- parameters.designsize = (metadata.designsize or 10)*65536 |