diff options
| -rw-r--r-- | luaotfload.dtx | 43 | ||||
| -rw-r--r-- | otfl-compat-font-otf.lua | 1629 |
2 files changed, 1659 insertions, 13 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx index 52f5364..c746186 100644 --- a/luaotfload.dtx +++ b/luaotfload.dtx @@ -34,7 +34,7 @@ \input docstrip.tex \Msg{************************************************************************} \Msg{* Installation} -\Msg{* Package: luaotfload 2009/11/15 v1.05 ConTeXt font loading system} +\Msg{* Package: luaotfload 2009/12/01 v1.06 ConTeXt font loading system} \Msg{************************************************************************} \keepsilent @@ -100,7 +100,7 @@ and the derived files %<*driver> \NeedsTeXFormat{LaTeX2e} \ProvidesFile{luaminimalotf.drv}% - [2009/11/15 v1.05 ConTeXt font loading system]% + [2009/12/01 v1.06 ConTeXt font loading system]% \documentclass{ltxdoc} \EnableCrossrefs \CodelineIndex @@ -131,7 +131,7 @@ and the derived files % \GetFileInfo{luaotfload.drv} % % \title{The \textsf{luaotfload} package} -% \date{2009/11/15 v1.05} +% \date{2009/12/01 v1.06} % \author{Elie Roux \\ \texttt{elie.roux@telecom-bretagne.eu}} % % \maketitle @@ -224,8 +224,8 @@ luaotfload = { } luaotfload.module = { name = "luaotfload", - version = 1.04, - date = "2009/11/15", + version = 1.06, + date = "2009/12/01", description = "ConTeXt font loading system.", author = "Elie Roux & Hans Hagen", copyright = "Elie Roux", @@ -240,16 +240,33 @@ luatextra.provides_module(luaotfload.module) % \texttt{otfl-} prefix to it, so that we call it with the actual Con\TeX t % name. % +% Some Con\TeX t files introduce incompatibilities with old Lua\TeX s, thus +% the old versions of these files are kept under the name |otfl-compat-...| +% and are called according to the version. The only file in this case +% is a |font-otf.lua| that, in version 2009.11.26 of Con\TeX t generates +% invalid PDFs with Lua\TeX{} older than version 0.45. +% % \begin{macrocode} -function luaotfload.loadmodule(name) - local foundname = kpse.find_file('otfl-'..name,"tex") - if not foundname then - luatextra.module_error('luaotfload', string.format('file otfl-%s not found.', name)) - return +function luaotfload.loadmodule(name, compat) + local tofind + if compat then + if tex.luatexversion < 45 then + tofind = 'otfl-compat-'..name + else + tofind = 'otfl-'..name + end + else + tofind = 'otfl-'..name + end + local found = kpse.find_file(tofind,"tex") + if not found then + luatextra.module_error('luaotfload', string.format('file %s not found.', tofind)) + return end - dofile(foundname) + luatextra.module_log('luaotfload', "loading file "..found) + dofile(found) end % \end{macrocode} @@ -386,7 +403,7 @@ luaotfload.loadmodule('font-ini.lua') luaotfload.loadmodule('font-tfm.lua') luaotfload.loadmodule('font-cid.lua') luaotfload.loadmodule('font-ott.lua') -luaotfload.loadmodule('font-otf.lua') +luaotfload.loadmodule('font-otf.lua', 1) luaotfload.loadmodule('font-otd.lua') luaotfload.loadmodule('font-oti.lua') luaotfload.loadmodule('font-otb.lua') @@ -480,7 +497,7 @@ end \else \NeedsTeXFormat{LaTeX2e} \ProvidesPackage{luaotfload}% - [2009/11/15 v1.05 ConTeXt font loading system] + [2009/12/01 v1.06 ConTeXt font loading system] \RequirePackage{luatextra} \fi diff --git a/otfl-compat-font-otf.lua b/otfl-compat-font-otf.lua new file mode 100644 index 0000000..be18738 --- /dev/null +++ b/otfl-compat-font-otf.lua @@ -0,0 +1,1629 @@ +if not modules then modules = { } end modules ['font-otf'] = { + version = 1.001, + comment = "companion to font-ini.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local utf = unicode.utf8 + +local concat, getn, utfbyte = table.concat, table.getn, utf.byte +local format, gmatch, gsub, find, match, lower, strip = string.format, string.gmatch, string.gsub, string.find, string.match, string.lower, string.strip +local type, next, tonumber, tostring = type, next, tonumber, tostring + +local trace_private = false trackers.register("otf.private", function(v) trace_private = v end) +local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end) +local trace_features = false trackers.register("otf.features", function(v) trace_features = v end) +local trace_dynamics = false trackers.register("otf.dynamics", function(v) trace_dynamics = v end) +local trace_sequences = false trackers.register("otf.sequences", function(v) trace_sequences = v end) +local trace_math = false trackers.register("otf.math", function(v) trace_math = v end) +local trace_unimapping = false trackers.register("otf.unimapping", function(v) trace_unimapping = v end) + +--~ trackers.enable("otf.loading") + +local zwnj = 0x200C +local zwj = 0x200D + +--[[ldx-- +<p>The fontforge table has organized lookups in a certain way. A first implementation +of this code was organized featurewise: information related to features was +collected and processing boiled down to a run over the features. The current +implementation honors the order in the main feature table. Since we can reorder this +table as we want, we can eventually support several models of processing. We kept +the static as well as dynamic feature processing, because it had proved to be +rather useful. The formerly three loop variants have beem discarded but will +reapear at some time.</p> + +<itemize> +<item>we loop over all lookups</item> +<item>for each lookup we do a run over the list of glyphs</item> +<item>but we only process them for features that are enabled</item> +<item>if we're dealing with a contextual lookup, we loop over all contexts</item> +<item>in that loop we quit at a match and then process the list of sublookups</item> +<item>we always continue after the match</item> +</itemize> + +<p>In <l n='context'/> we do this for each font that is used in a list, so in +practice we have quite some nested loops.</p> + +<p>We process the whole list and then consult the glyph nodes. An alternative approach +is to collect strings of characters using the same font including spaces (because some +lookups involve spaces). However, we then need to reconstruct the list which is no fun. +Also, we need to carry quite some information, like attributes, so eventually we don't +gain much (if we gain something at all).</p> + +<p>Another consideration has been to operate on sublists (subhead, subtail) but again +this would complicate matters as we then neext to keep track of a changing subhead +and subtail. On the other hand, this might save some runtime. The number of changes +involved is not that large. This only makes sense when we have many fonts in a list +and don't change to frequently.</p> +--ldx]]-- + +fonts = fonts or { } +fonts.otf = fonts.otf or { } +fonts.tfm = fonts.tfm or { } + +local otf = fonts.otf +local tfm = fonts.tfm + +local fontdata = fonts.ids + +otf.tables = otf.tables or { } -- defined in font-ott.lua +otf.meanings = otf.meanings or { } -- defined in font-ott.lua +otf.tables.features = otf.tables.features or { } -- defined in font-ott.lua +otf.tables.languages = otf.tables.languages or { } -- defined in font-ott.lua +otf.tables.scripts = otf.tables.scripts or { } -- defined in font-ott.lua + +otf.features = otf.features or { } +otf.features.list = otf.features.list or { } +otf.features.default = otf.features.default or { } + +otf.enhancers = otf.enhancers or { } +otf.glists = { "gsub", "gpos" } + +otf.version = 2.635 -- beware: also sync font-mis.lua +otf.pack = true -- beware: also sync font-mis.lua +otf.syncspace = true +otf.notdef = false +otf.cache = containers.define("fonts", "otf", otf.version, true) +otf.cleanup_aat = false -- only context + +--[[ldx-- +<p>We start with a lot of tables and related functions.</p> +--ldx]]-- + +otf.tables.global_fields = table.tohash { + "lookups", + "glyphs", + "subfonts", + "luatex", + "pfminfo", + "cidinfo", + "tables", + "names", + "unicodes", + "names", +--~ "math", + "anchor_classes", + "kern_classes", + "gpos", + "gsub" +} + +otf.tables.valid_fields = { + "anchor_classes", + "ascent", + "cache_version", + "cidinfo", + "copyright", + "creationtime", + "descent", + "design_range_bottom", + "design_range_top", + "design_size", + "encodingchanged", + "extrema_bound", + "familyname", + "fontname", + "fontstyle_id", + "fontstyle_name", + "fullname", + "glyphs", + "hasvmetrics", + "head_optimized_for_cleartype", + "horiz_base", + "issans", + "isserif", + "italicangle", + "kerns", + "lookups", + -- "luatex", + "macstyle", + "modificationtime", + "onlybitmaps", + "origname", + "os2_version", + "pfminfo", + "private", + "serifcheck", + "sfd_version", + -- "size", + "strokedfont", + "strokewidth", + "subfonts", + "table_version", + -- "tables", + -- "ttf_tab_saved", + "ttf_tables", + "uni_interp", + "uniqueid", + "units_per_em", + "upos", + "use_typo_metrics", + "uwidth", + "validation_state", + "verbose", + "version", + "vert_base", + "weight", + "weight_width_slope_only", + "xuid", +} + +--[[ldx-- +<p>Here we go.</p> +--ldx]]-- + +local function load_featurefile(ff,featurefile) + if featurefile then + featurefile = resolvers.find_file(file.addsuffix(featurefile,'fea')) -- "FONTFEATURES" + if featurefile and featurefile ~= "" then + if trace_loading then + logs.report("load otf", "featurefile: %s", featurefile) + end + fontloader.apply_featurefile(ff, featurefile) + end + end +end + +function otf.enhance(name,data,filename,verbose) + local enhancer = otf.enhancers[name] + if enhancer then + if (verbose ~= nil and verbose) or trace_loading then + logs.report("load otf","enhance: %s",name) + end + enhancer(data,filename) + end +end + +local enhancers = { + -- pack and unpack are handled separately; they might even be moved + -- away from the enhancers namespace + "patch bugs", + "merge cid fonts", "prepare unicode", "cleanup ttf tables", "compact glyphs", "reverse coverage", + "cleanup aat", "enrich with features", "add some missing characters", + "reorganize mark classes", + "reorganize kerns", -- moved here + "flatten glyph lookups", "flatten anchor tables", "flatten feature tables", + "prepare luatex tables", + "analyse features", "rehash features", + "analyse anchors", "analyse marks", "analyse unicodes", "analyse subtables", + "check italic correction","check math", + "share widths", + "strip not needed data", + "migrate metadata", +} + +function otf.load(filename,format,sub,featurefile) + local name = file.basename(file.removesuffix(filename)) + if featurefile then + name = name .. "@" .. file.removesuffix(file.basename(featurefile)) + end + if sub == "" then sub = false end + local hash = name + if sub then + hash = hash .. "-" .. sub + end + hash = containers.cleanname(hash) + local data = containers.read(otf.cache(), hash) + local size = lfs.attributes(filename,"size") or 0 + if not data or data.verbose ~= fonts.verbose or data.size ~= size then + logs.report("load otf","loading: %s (hash: %s)",filename,hash) + local ff, messages + if sub then + ff, messages = fontloader.open(filename,sub) + else + ff, messages = fontloader.open(filename) + end + if trace_loading and messages and #messages > 0 then + for m=1,#messages do + logs.report("load otf","warning: %s",messages[m]) + end + end + if ff then + load_featurefile(ff,featurefile) + data = fontloader.to_table(ff) + fontloader.close(ff) + if data then + logs.report("load otf","file size: %s", size) + logs.report("load otf","enhancing ...") + for e=1,#enhancers do + otf.enhance(enhancers[e],data,filename) + end + if otf.pack and not fonts.verbose then + otf.enhance("pack",data,filename) + end + data.size = size + data.verbose = fonts.verbose + logs.report("load otf","saving in cache: %s",filename) + data = containers.write(otf.cache(), hash, data) + collectgarbage("collect") + data = containers.read(otf.cache(), hash) -- this frees the old table and load the sparse one + collectgarbage("collect") + else + logs.report("load otf","loading failed (table conversion error)") + end + else + logs.report("load otf","loading failed (file read error)") + end + end + if data then + otf.enhance("unpack",data,filename,false) -- no message here + otf.add_dimensions(data) + if trace_sequences then + otf.show_feature_order(data,filename) + end + end + return data +end + +function otf.add_dimensions(data) + -- todo: forget about the width if it's the defaultwidth (saves mem) + -- we could also build the marks hash here (instead of storing it) + if data then + local force = otf.notdef + local luatex = data.luatex + local defaultwidth = luatex.defaultwidth or 0 + local defaultheight = luatex.defaultheight or 0 + local defaultdepth = luatex.defaultdepth or 0 + for _, d in next, data.glyphs do + local bb, wd = d.boundingbox, d.width + if not wd then + d.width = defaultwidth + elseif wd ~= 0 and d.class == "mark" then + d.width = -wd + end + if force and not d.name then + d.name = ".notdef" + end + if bb then + local ht, dp = bb[4], -bb[2] + if ht == 0 or ht < 0 then + -- no need to set it and no negative heights, nil == 0 + else + d.height = ht + end + if dp == 0 or dp < 0 then + -- no negative depths and no negative depths, nil == 0 + else + d.depth = dp + end + end + end + end +end + +function otf.show_feature_order(otfdata,filename) + local sequences = otfdata.luatex.sequences + if sequences and #sequences > 0 then + if trace_loading then + logs.report("otf check","font %s has %s sequences",filename,#sequences) + logs.report("otf check"," ") + end + for nos=1,#sequences do + local sequence = sequences[nos] + local typ = sequence.type or "no-type" + local name = sequence.name or "no-name" + local subtables = sequence.subtables or { "no-subtables" } + local features = sequence.features + if trace_loading then + logs.report("otf check","%3i %-15s %-20s [%s]",nos,name,typ,concat(subtables,",")) + end + if features then + for feature, scripts in next, features do + local tt = { } + for script, languages in next, scripts do + local ttt = { } + for language, _ in next, languages do + ttt[#ttt+1] = language + end + tt[#tt+1] = format("[%s: %s]",script,concat(ttt," ")) + end + if trace_loading then + logs.report("otf check"," %s: %s",feature,concat(tt," ")) + end + end + end + end + if trace_loading then + logs.report("otf check","\n") + end + elseif trace_loading then + logs.report("otf check","font %s has no sequences",filename) + end +end + +-- todo: normalize, design_size => designsize + +otf.enhancers["reorganize mark classes"] = function(data,filename) + if data.mark_classes then + local unicodes = data.luatex.unicodes + local reverse = { } + for name, class in next, data.mark_classes do + local t = { } + for s in gmatch(class,"[^ ]+") do + t[unicodes[s]] = true + end + reverse[name] = t + end + data.luatex.markclasses = reverse + data.mark_classes = nil + end +end + +otf.enhancers["prepare luatex tables"] = function(data,filename) + data.luatex = data.luatex or { } + local luatex = data.luatex + luatex.filename = filename + luatex.version = otf.version + luatex.creator = "context mkiv" +end + +otf.enhancers["cleanup aat"] = function(data,filename) + if otf.cleanup_aat then + end +end + +local function analyze_features(g, features) + if g then + local t, done = { }, { } + for k=1,#g do + local f = features or g[k].features + if f then + for k=1,#f do + -- scripts and tag + local tag = f[k].tag + if not done[tag] then + t[#t+1] = tag + done[tag] = true + end + end + end + end + if #t > 0 then + return t + end + end + return nil +end + +otf.enhancers["analyse features"] = function(data,filename) + -- local luatex = data.luatex + -- luatex.gposfeatures = analyze_features(data.gpos) + -- luatex.gsubfeatures = analyze_features(data.gsub) +end + +otf.enhancers["rehash features"] = function(data,filename) + local features = { } + data.luatex.features = features + for k, what in next, otf.glists do + local dw = data[what] + if dw then + local f = { } + features[what] = f + for i=1,#dw do + local d= dw[i] + local dfeatures = d.features + if dfeatures then + for i=1,#dfeatures do + local df = dfeatures[i] + local tag = strip(lower(df.tag)) + local ft = f[tag] if not ft then ft = {} f[tag] = ft end + local dscripts = df.scripts + for script, languages in next, dscripts do + script = strip(lower(script)) + local fts = ft[script] if not fts then fts = {} ft[script] = fts end + for i=1,#languages do + fts[strip(lower(languages[i]))] = true + end + end + end + end + end + end + end +end + +otf.enhancers["analyse anchors"] = function(data,filename) + local classes = data.anchor_classes + local luatex = data.luatex + local anchor_to_lookup, lookup_to_anchor = { }, { } + luatex.anchor_to_lookup, luatex.lookup_to_anchor = anchor_to_lookup, lookup_to_anchor + if classes then + for c=1,#classes do + local class = classes[c] + local anchor = class.name + local lookups = class.lookup + if type(lookups) ~= "table" then + lookups = { lookups } + end + local a = anchor_to_lookup[anchor] + if not a then a = { } anchor_to_lookup[anchor] = a end + for l=1,#lookups do + local lookup = lookups[l] + local l = lookup_to_anchor[lookup] + if not l then l = { } lookup_to_anchor[lookup] = l end + l[anchor] = true + a[lookup] = true + end + end + end +end + +otf.enhancers["analyse marks"] = function(data,filename) + local glyphs = data.glyphs + local marks = { } + data.luatex.marks = marks + for unicode, index in next, data.luatex.indices do + local glyph = glyphs[index] + if glyph.class == "mark" then + marks[unicode] = true + end + end +end + +local separator = lpeg.S("_.") +local other = lpeg.C((1 - separator)^1) +local ligsplitter = lpeg.Ct(other * (separator * other)^0) + +--~ print(table.serialize(ligsplitter:match("this"))) +--~ print(table.serialize(ligsplitter:match("this.that"))) +--~ print(table.serialize(ligsplitter:match("japan1.123"))) +--~ print(table.serialize(ligsplitter:match("such_so_more"))) +--~ print(table.serialize(ligsplitter:match("such_so_more.that"))) + +otf.enhancers["analyse unicodes"] = function(data,filename) + local tounicode16, tounicode16sequence = fonts.map.tounicode16, fonts.map.tounicode16sequence + local unicodes = data.luatex.unicodes + -- we need to move this code + unicodes['space'] = unicodes['space'] or 32 -- handly later on + unicodes['hyphen'] = unicodes['hyphen'] or 45 -- handly later on + unicodes['zwj'] = unicodes['zwj'] or zwj -- handly later on + unicodes['zwnj'] = unicodes['zwnj'] or zwnj -- handly later on + -- the tounicode mapping is sparse and only needed for alternatives + local tounicode, originals, ns, nl, private, unknown = { }, { }, 0, 0, fonts.private, format("%04X",utfbyte("?")) + data.luatex.tounicode, data.luatex.originals = tounicode, originals + local lumunic, uparser, oparser + if false then -- will become an option + lumunic = fonts.map.load_lum_table(filename) + lumunic = lumunic and lumunic.tounicode + end + local cidinfo, cidnames, cidcodes = data.cidinfo + local usedmap = cidinfo and cidinfo.usedname + usedmap = usedmap and fonts.cid.map[usedmap] + if usedmap then + oparser = usedmap and fonts.map.make_name_parser(cidinfo.ordering) + cidnames = usedmap.names + cidcodes = usedmap.unicodes + end + uparser = fonts.map.make_name_parser() + local aglmap = fonts.map and fonts.map.agl_to_unicode + for index, glyph in next, data.glyphs do + local name, unic = glyph.name, glyph.unicode or -1 -- play safe + if unic == -1 or unic >= private or (unic >= 0xE000 and unic <= 0xF8FF) or unic == 0xFFFE or unic == 0xFFFF then + local unicode = lumunic and lumunic[name] + if unicode then + originals[index], tounicode[index], ns = unicode, tounicode16(unicode), ns + 1 + end + -- cidmap heuristics, beware, there is no guarantee for a match unless + -- the chain resolves + if (not unicode) and usedmap then + local foundindex = oparser:match(name) + if foundindex then + unicode = cidcodes[foundindex] -- name to number + if not unicode then + local reference = cidnames[foundindex] -- number to name + if reference then + local foundindex = oparser:match(reference) + if foundindex then + unicode = cidcodes[foundindex] + if unicode then + originals[index], tounicode[index], ns = unicode, tounicode16(unicode), ns + 1 + end + end + if not unicode then + local foundcodes, multiple = uparser:match(reference) + if foundcodes then + if multiple then + originals[index], tounicode[index], nl, unicode = foundcodes, tounicode16sequence(foundcodes), nl + 1, true + else + originals[index], tounicode[index], ns, unicode = foundcodes, tounicode16(foundcodes), ns + 1, foundcodes + end + end + end + end + end + end + end + -- a.whatever or a_b_c.whatever or a_b_c (no numbers) + if not unicode then + local split = ligsplitter:match(name) + local nplit = (split and #split) or 0 + if nplit == 0 then + -- skip + elseif nplit == 1 then + local base = split[1] + unicode = unicodes[base] or (agl and agl[base]) + if unicode then + if type(unicode) == "table" then + unicode = unicode[1] + end + originals[index], tounicode[index], ns = unicode, tounicode16(unicode), ns + 1 + end + else + local t = { } + for l=1,nplit do + local base = split[l] + local u = unicodes[base] or (agl and agl[base]) + if not u then + break + elseif type(u) == "table" then + t[#t+1] = u[1] + else + t[#t+1] = u + end + end + if #t > 0 then -- done then + originals[index], tounicode[index], nl, unicode = t, tounicode16sequence(t), nl + 1, true + end + end + end + -- last resort + if not unicode then + local foundcodes, multiple = uparser:match(name) + if foundcodes then + if multiple then + originals[index], tounicode[index], nl, unicode = foundcodes, tounicode16sequence(foundcodes), nl + 1, true + else + originals[index], tounicode[index], ns, unicode = foundcodes, tounicode16(foundcodes), ns + 1, foundcodes + end + end + end + if not unicode then + originals[index], tounicode[index] = 0xFFFD, "FFFD" + end + end + end + if trace_unimapping then + for index, glyph in table.sortedpairs(data.glyphs) do + local toun, name, unic = tounicode[index], glyph.name, glyph.unicode or -1 -- play safe + if toun then + logs.report("load otf","internal: 0x%05X, name: %s, unicode: 0x%05X, tounicode: %s",index,name,unic,toun) + else + logs.report("load otf","internal: 0x%05X, name: %s, unicode: 0x%05X",index,name,unic) + end + end + end + if trace_loading and (ns > 0 or nl > 0) then + logs.report("load otf","enhance: %s tounicode entries added (%s ligatures)",nl+ns, ns) + end +end + +otf.enhancers["analyse subtables"] = function(data,filename) + data.luatex = data.luatex or { } + local luatex = data.luatex + local sequences = { } + local lookups = { } + luatex.sequences = sequences + luatex.lookups = lookups + for _, g in next, { data.gsub, data.gpos } do + for k=1,#g do + local gk = g[k] + local typ = gk.type + if typ == "gsub_contextchain" or typ == "gpos_contextchain" then + gk.chain = 1 + elseif typ == "gsub_reversecontextchain" or typ == "gpos_reversecontextchain" then + gk.chain = -1 + else + gk.chain = 0 + end + local features = gk.features + if features then + sequences[#sequences+1] = gk + -- scripts, tag, ismac + local t = { } + for f=1,#features do + local feature = features[f] + local hash = { } + -- only script and langs matter + for s, languages in next, feature.scripts do + s = lower(s) + local h = hash[s] + if not h then h = { } hash[s] = h end + for l=1,#languages do + h[strip(lower(languages[l]))] = true + end + end + t[feature.tag] = hash + end + gk.features = t + else + lookups[gk.name] = gk + gk.name = nil + end + local subtables = gk.subtables + if subtables then + local t = { } + for s=1,#subtables do + local subtable = subtables[s] + local name = subtable.name + t[#t+1] = name + end + gk.subtables = t + end + local flags = gk.flags + if flags then + gk.flags = { -- forcing false packs nicer + (flags.ignorecombiningmarks and "mark") or false, + (flags.ignoreligatures and "ligature") or false, + (flags.ignorebaseglyphs and "base") or false, + flags.r2l or false, + } + if flags.mark_class then + gk.markclass = luatex.markclasses[flags.mark_class] + end + end + end + end +end + +otf.enhancers["merge cid fonts"] = function(data,filename) + -- we can also move the names to data.luatex.names which might + -- save us some more memory (at the cost of harder tracing) + if data.subfonts and table.is_empty(data.glyphs) then + local cidinfo = data.cidinfo + local verbose = fonts.verbose + if cidinfo.registry then + local cidmap, cidname = fonts.cid.getmap(cidinfo.registry,cidinfo.ordering,cidinfo.supplement) + if cidmap then + cidinfo.usedname = cidmap.usedname + local glyphs, uni_to_int, int_to_uni, nofnames, nofunicodes = { }, { }, { }, 0, 0 + local unicodes, names = cidmap.unicodes, cidmap.names + for n, subfont in next, data.subfonts do + for index, g in next, subfont.glyphs do + if not next(g) then + -- dummy entry + else + local unicode, name = unicodes[index], names[index] + g.cidindex = n + g.boundingbox = g.boundingbox -- or zerobox + g.name = g.name or name or "unknown" + if unicode then + uni_to_int[unicode] = index + int_to_uni[index] = unicode + nofunicodes = nofunicodes + 1 + g.unicode = unicode + elseif name then + nofnames = nofnames + 1 + g.unicode = -1 + end + glyphs[index] = g + end + end + subfont.glyphs = nil + end + if trace_loading then + logs.report("load otf","cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes, nofnames, nofunicodes+nofnames) + end + data.glyphs = glyphs + data.map = data.map or { } + data.map.map = uni_to_int + data.map.backmap = int_to_uni + elseif trace_loading then + logs.report("load otf","unable to remap cid font, missing cid file for %s",filename) + end + elseif trace_loading then + logs.report("load otf","font %s has no glyphs",filename) + end + end +end + +otf.enhancers["prepare unicode"] = function(data,filename) + local luatex = data.luatex + if not luatex then luatex = { } data.luatex = luatex end + local indices, unicodes, multiples, internals = { }, { }, { }, { } + local glyphs = data.glyphs + local mapmap = data.map + if not mapmap then + logs.report("load otf","no map in %s",filename) + mapmap = { } + data.map = { map = mapmap } + elseif not mapmap.map then + logs.report("load otf","no unicode map in %s",filename) + mapmap = { } + data.map.map = mapmap + else + mapmap = mapmap.map + end + local criterium = fonts.private + local private = fonts.private + for index, glyph in next, glyphs do + if index > 0 then + local name = glyph.name + if name then + local unicode = glyph.unicode + if unicode == -1 or unicode >= criterium then + glyph.unicode = private + indices[private] = index + unicodes[name] = private + internals[index] = true + if trace_private then + logs.report("load otf","enhance: glyph %s at index U+%04X is moved to private unicode slot U+%04X",name,index,private) + end + private = private + 1 + else + indices[unicode] = index + unicodes[name] = unicode + end + end + end + end + -- beware: the indices table is used to initialize the tfm table + for unicode, index in next, mapmap do + if not internals[index] then + local name = glyphs[index].name + if name then + local un = unicodes[name] + if not un then + unicodes[name] = unicode -- or 0 + elseif type(un) == "number" then + if un ~= unicode then + multiples[#multiples+1] = name + unicodes[name] = { un, unicode } + indices[unicode] = index + end + else + local ok = false + for u=1,#un do + if un[u] == unicode then + ok = true + break + end + end + if not ok then + multiples[#multiples+1] = name + un[#un+1] = unicode + indices[unicode] = index + end + end + end + end + end + if trace_loading then + if #multiples > 0 then + logs.report("load otf","%s glyph are reused: %s",#multiples, concat(multiples," ")) + else + logs.report("load otf","no glyph are reused") + end + end + luatex.indices = indices + luatex.unicodes = unicodes + luatex.private = private +end + +otf.enhancers["cleanup ttf tables"] = function(data,filename) + local ttf_tables = data.ttf_tables + if ttf_tables then + for k=1,#ttf_tables do + if ttf_tables[k].data then ttf_tables[k].data = "deleted" end + end + end + data.ttf_tab_saved = nil +end + +otf.enhancers["compact glyphs"] = function(data,filename) + table.compact(data.glyphs) -- needed? + if data.subfonts then + for _, subfont in next, data.subfonts do + table.compact(subfont.glyphs) -- needed? + end + end +end + +otf.enhancers["reverse coverage"] = function(data,filename) + -- we prefer the before lookups in a normal order + if data.lookups then + for _, v in next, data.lookups do + if v.rules then + for _, vv in next, v.rules do + local c = vv.coverage + if c and c.before then + c.before = table.reverse(c.before) + end + end + end + end + end +end + +otf.enhancers["check italic correction"] = function(data,filename) + local glyphs = data.glyphs + local ok = false + for index, glyph in next, glyphs do + local ic = glyph.italic_correction + if ic then + if ic ~= 0 then + glyph.italic = ic + end + glyph.italic_correction = nil + ok = true + end + end + -- we can use this to avoid calculations + otf.tables.valid_fields[#otf.tables.valid_fields+1] = "has_italic" + data.has_italic = true +end + +otf.enhancers["check math"] = function(data,filename) + if data.math then + -- we move the math stuff into a math subtable because we then can + -- test faster in the tfm copy + local glyphs = data.glyphs + local unicodes = data.luatex.unicodes + for index, glyph in next, glyphs do + local mk = glyph.mathkern + local hv = glyph.horiz_variants + local vv = glyph.vert_variants + if mk or hv or vv then + local math = { } + glyph.math = math + if mk then + for k, v in next, mk do + if not next(v) then + mk[k] = nil + end + end + math.kerns = mk + glyph.mathkern = nil + end + if hv then + math.horiz_variants = hv.variants + local p = hv.parts + if p then + if #p>0 then + for i=1,#p do + local pi = p[i] + pi.glyph = unicodes[pi.component] or 0 + end + math.horiz_parts = p + end + end + local ic = hv.italic_correction + if ic and ic ~= 0 then + math.horiz_italic_correction = ic + end + glyph.horiz_variants = nil + end + if vv then + local uc = unicodes[index] + math.vert_variants = vv.variants + local p = vv.parts + if p then + if #p>0 then + for i=1,#p do + local pi = p[i] + pi.glyph = unicodes[pi.component] or 0 + end + math.vert_parts = p + end + end + local ic = vv.italic_correction + if ic and ic ~= 0 then + math.vert_italic_correction = ic + end + glyph.vert_variants = nil + end + local ic = glyph.italic_correction + if ic then + if ic ~= 0 then + math.italic_correction = ic + end + glyph.italic_correction = nil + end + end + end + end +end + +otf.enhancers["share widths"] = function(data,filename) + local glyphs = data.glyphs + local widths = { } + for index, glyph in next, glyphs do + local width = glyph.width + widths[width] = (widths[width] or 0) + 1 + end + -- share width for cjk fonts + local wd, most = 0, 1 + for k,v in next, widths do + if v > most then + wd, most = k, v + end + end + if most > 1000 then + if trace_loading then + logs.report("load otf", "most common width: %s (%s times), sharing (cjk font)",wd,most) + end + for k, v in next, glyphs do + if v.width == wd then + v.width = nil + end + end + data.luatex.defaultwidth = wd + end +end + +-- kern: ttf has a table with kerns + +otf.enhancers["reorganize kerns"] = function(data,filename) + local glyphs, mapmap, unicodes = data.glyphs, data.luatex.indices, data.luatex.unicodes + local mkdone = false + for index, glyph in next, data.glyphs do + if glyph.kerns then + local mykerns = { } + for k,v in next, glyph.kerns do + local vc, vo, vl = v.char, v.off, v.lookup + if vc and vo and vl then -- brrr, wrong! we miss the non unicode ones + local uvc = unicodes[vc] + if not uvc then + if trace_loading then + logs.report("load otf","problems with unicode %s of kern %s at glyph %s",vc,k,index) + end + else + if type(vl) ~= "table" then + vl = { vl } + end + for l=1,#vl do + local vll = vl[l] + local mkl = mykerns[vll] + if not mkl then + mkl = { } + mykerns[vll] = mkl + end + if type(uvc) == "table" then + for u=1,#uvc do + mkl[uvc[u]] = vo + end + else + mkl[uvc] = vo + end + end + end + end + end + glyph.mykerns = mykerns + glyph.kerns = nil -- saves space and time + mkdone = true + end + end + if trace_loading and mkdone then + logs.report("load otf", "replacing 'kerns' tables by 'mykerns' tables") + end + if data.kerns then + if trace_loading then + logs.report("load otf", "removing global 'kern' table") + end + data.kerns = nil + end + local dgpos = data.gpos + if dgpos then + for gp=1,#dgpos do + local gpos = dgpos[gp] + local subtables = gpos.subtables + if subtables then + for s=1,#subtables do + local subtable = subtables[s] + local kernclass = subtable.kernclass -- name is inconsistent with anchor_classes + if kernclass then + for k=1,#kernclass do + local kcl = kernclass[k] + local firsts, seconds, offsets, lookups = kcl.firsts, kcl.seconds, kcl.offsets, kcl.lookup -- singular + if type(lookups) ~= "table" then + lookups = { lookups } + end + for l=1,#lookups do + local lookup = lookups[l] + local maxfirsts, maxseconds = getn(firsts), getn(seconds) + if trace_loading then + logs.report("load otf", "adding kernclass %s with %s times %s pairs",lookup, maxfirsts, maxseconds) + end + for fk, fv in next, firsts do + for first in gmatch(fv,"[^ ]+") do + local first_unicode = unicodes[first] + if type(first_unicode) == "number" then + first_unicode = { first_unicode } + end + for f=1,#first_unicode do + local glyph = glyphs[mapmap[first_unicode[f]]] + if glyph then + local mykerns = glyph.mykerns + if not mykerns then + mykerns = { } -- unicode indexed ! + glyph.mykerns = mykerns + end + local lookupkerns = mykerns[lookup] + if not lookupkerns then + lookupkerns = { } + mykerns[lookup] = lookupkerns + end + for sk, sv in next, seconds do + local offset = offsets[(fk-1) * maxseconds + sk] + --~ local offset = offsets[sk] -- (fk-1) * maxseconds + sk] + for second in gmatch(sv,"[^ ]+") do + local second_unicode = unicodes[second] + if type(second_unicode) == "number" then + lookupkerns[second_unicode] = offset + else + for s=1,#second_unicode do + lookupkerns[second_unicode[s]] = offset + end + end + end + end + elseif trace_loading then + logs.report("load otf", "no glyph data for U+%04X", first_unicode[f]) + end + end + end + end + end + end + subtable.comment = "The kernclass table is merged into mykerns in the indexed glyph tables." + subtable.kernclass = { } + end + end + end + end + end +end + +otf.enhancers["strip not needed data"] = function(data,filename) + local verbose = fonts.verbose + local int_to_uni = data.luatex.unicodes + for k, v in next, data.glyphs do + local d = v.dependents + if d then v.dependents = nil end + local a = v.altuni + if a then v.altuni = nil end + if verbose then + local code = int_to_uni[k] + -- looks like this is done twice ... bug? + if code then + local vu = v.unicode + if not vu then + v.unicode = code + elseif type(vu) == "table" then + if vu[#vu] == code then + -- weird + else + vu[#vu+1] = code + end + elseif vu ~= code then + v.unicode = { vu, code } + end + end + else + v.unicode = nil + v.index = nil + end + end + data.luatex.comment = "Glyph tables have their original index. When present, mykern tables are indexed by unicode." + data.map = nil + data.names = nil -- funny names for editors + data.glyphcnt = nil + data.glyphmax = nil + if true then + data.gpos = nil + data.gsub = nil + data.anchor_classes = nil + end +end + +otf.enhancers["migrate metadata"] = function(data,filename) + local global_fields = otf.tables.global_fields + local metadata = { } + for k,v in next, data do + if not global_fields[k] then + metadata[k] = v + data[k] = nil + end + end + data.metadata = metadata + -- goodies + local pfminfo = data.pfminfo + metadata.isfixedpitch = metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose["proportion"] == "Monospaced") + metadata.charwidth = pfminfo and pfminfo.avgwidth +end + +otf.enhancers["flatten glyph lookups"] = function(data,filename) + for k, v in next, data.glyphs do + if v.lookups then + for kk, vv in next, v.lookups do + for kkk=1,#vv do + local vvv = vv[kkk] + local s = vvv.specification + if s then + local t = vvv.type + if t == "ligature" then + vv[kkk] = { "ligature", s.components, s.char } + elseif t == "alternate" then + vv[kkk] = { "alternate", s.components } + elseif t == "substitution" then + vv[kkk] = { "substitution", s.variant } + elseif t == "multiple" then + vv[kkk] = { "multiple", s.components } + elseif t == "position" then + vv[kkk] = { "position", { s.x or 0, s.y or 0, s.h or 0, s.v or 0 } } + elseif t == "pair" then + local one, two, paired = s.offsets[1], s.offsets[2], s.paired or "" + if one then + if two then + vv[kkk] = { "pair", paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0 } } + else + vv[kkk] = { "pair", paired, { one.x or 0, one.y or 0, one.h or 0, one.v or 0 } } + end + else + if two then + vv[kkk] = { "pair", paired, { }, { two.x or 0, two.y or 0, two.h or 0, two.v or 0} } -- maybe nil instead of { } + else + vv[kkk] = { "pair", paired } + end + end + else + if trace_loading then + logs.report("load otf", "flattening needed, report to context list") + end + for a, b in next, s do + if trace_loading and vvv[a] then + logs.report("load otf", "flattening conflict, report to context list") + end + vvv[a] = b + end + vvv.specification = nil + end + end + end + end + end + end +end + +otf.enhancers["flatten anchor tables"] = function(data,filename) + for k, v in next, data.glyphs do + if v.anchors then + for kk, vv in next, v.anchors do + for kkk, vvv in next, vv do + if vvv.x or vvv.y then + vv[kkk] = { vvv.x or 0, vvv.y or 0 } + else + for kkkk=1,#vvv do + local vvvv = vvv[kkkk] + vvv[kkkk] = { vvvv.x or 0, vvvv.y or 0 } + end + end + end + end + end + end +end + +otf.enhancers["flatten feature tables"] = function(data,filename) + -- is this needed? do we still use them at all? + for _, tag in next, otf.glists do + if data[tag] then + if trace_loading then + logs.report("load otf", "flattening %s table", tag) + end + for k, v in next, data[tag] do + local features = v.features + if features then + for kk=1,#features do + local vv = features[kk] + local t = { } + local scripts = vv.scripts + for kkk=1,#scripts do + local vvv = scripts[kkk] + t[vvv.script] = vvv.langs + end + vv.scripts = t + end + end + end + end + end +end + +otf.enhancers.patches = otf.enhancers.patches or { } + +otf.enhancers["patch bugs"] = function(data,filename) + local basename = file.basename(lower(filename)) + for pattern, action in next, otf.enhancers.patches do + if find(basename,pattern) then + action(data,filename) + end + end +end + +-- tex features + +fonts.otf.enhancers["enrich with features"] = function(data,filename) + -- later, ctx only +end + +function otf.features.register(name,default) + otf.features.list[#otf.features.list+1] = name + otf.features.default[name] = default +end + +function otf.set_features(tfmdata,features) + local processes = { } + if not table.is_empty(features) then + local lists = { + fonts.triggers, + fonts.processors, + fonts.manipulators, + } + local mode = tfmdata.mode or fonts.mode -- or features.mode + local initializers = fonts.initializers + local fi = initializers[mode] + if fi then + local fiotf = fi.otf + if fiotf then + local done = { } + for l=1,4 do + local list = lists[l] + if list then + for i=1,#list do + local f = list[i] + local value = features[f] + if value and fiotf[f] then -- brr + if not done[f] then -- so, we can move some to triggers + if trace_features then + logs.report("define otf","initializing feature %s to %s for mode %s for font %s",f,tostring(value),mode or 'unknown', tfmdata.fullname or 'unknown') + end + fiotf[f](tfmdata,value) -- can set mode (no need to pass otf) + mode = tfmdata.mode or fonts.mode -- keep this, mode can be set local ! + local im = initializers[mode] + if im then + fiotf = initializers[mode].otf + end + done[f] = true + end + end + end + end + end + end + end + local fm = fonts.methods[mode] + if fm then + local fmotf = fm.otf + if fmotf then + for l=1,4 do + local list = lists[l] + if list then + for i=1,#list do + local f = list[i] + if fmotf[f] then -- brr + if trace_features then + logs.report("define otf","installing feature handler %s for mode %s for font %s",f,mode or 'unknown', tfmdata.fullname or 'unknown') + end + processes[#processes+1] = fmotf[f] + end + end + end + end + end + else + -- message + end + end + return processes, features +end + +function otf.otf_to_tfm(specification) + local name = specification.name + local sub = specification.sub + local filename = specification.filename + local format = specification.format + local features = specification.features.normal + local cache_id = specification.hash + local tfmdata = containers.read(tfm.cache(),cache_id) +--~ print(cache_id) + if not tfmdata then + local otfdata = otf.load(filename,format,sub,features and features.featurefile) + if not table.is_empty(otfdata) then + otfdata.shared = otfdata.shared or { + featuredata = { }, + anchorhash = { }, + initialized = false, + } + tfmdata = otf.copy_to_tfm(otfdata,cache_id) + if not table.is_empty(tfmdata) then + tfmdata.unique = tfmdata.unique or { } + tfmdata.shared = tfmdata.shared or { } -- combine + local shared = tfmdata.shared + shared.otfdata = otfdata + shared.features = features -- default + shared.dynamics = { } + shared.processes = { } + shared.set_dynamics = otf.set_dynamics -- fast access and makes other modules independent + -- this will be done later anyway, but it's convenient to have + -- them already for fast access + tfmdata.luatex = otfdata.luatex + tfmdata.indices = otfdata.luatex.indices + tfmdata.unicodes = otfdata.luatex.unicodes + tfmdata.marks = otfdata.luatex.marks + tfmdata.originals = otfdata.luatex.originals + tfmdata.changed = { } + tfmdata.has_italic = otfdata.metadata.has_italic + if not tfmdata.language then tfmdata.language = 'dflt' end + if not tfmdata.script then tfmdata.script = 'dflt' end + shared.processes, shared.features = otf.set_features(tfmdata,fonts.define.check(features,otf.features.default)) + end + end + containers.write(tfm.cache(),cache_id,tfmdata) + end + return tfmdata +end + +--~ { +--~ ['boundingbox']={ 95, -458, 733, 1449 }, +--~ ['class']="base", +--~ ['name']="braceleft", +--~ ['unicode']=123, +--~ ['vert_variants']={ +--~ ['italic_correction']=0, +--~ ['parts']={ +--~ { ['component']="uni23A9", ['endConnectorLength']=1000, ['fullAdvance']=2546, ['is_extender']=0, ['startConnectorLength']=0, }, -- bot +--~ { ['component']="uni23AA", ['endConnectorLength']=2500, ['fullAdvance']=2501, ['is_extender']=1, ['startConnectorLength']=2500, }, -- rep +--~ { ['component']="uni23A8", ['endConnectorLength']=1000, ['fullAdvance']=4688, ['is_extender']=0, ['startConnectorLength']=1000, }, -- mid +--~ { ['component']="uni23AA", ['endConnectorLength']=2500, ['fullAdvance']=2501, ['is_extender']=1, ['startConnectorLength']=2500, }, -- rep +--~ { ['component']="uni23A7", ['endConnectorLength']=0, ['fullAdvance']=2546, ['is_extender']=0, ['startConnectorLength']=1000, }, -- top +--~ }, +--~ ['variants']="braceleft braceleft.vsize1 braceleft.vsize2 braceleft.vsize3 braceleft.vsize4 braceleft.vsize5 braceleft.vsize6 braceleft.vsize7", +--~ }, +--~ ['width']=793, +--~ }, + +-- the first version made a top/mid/not extensible table, now we just pass on the variants data +-- and deal with it in the tfm scaler (there is no longer an extensible table anyway) + +-- we cannot share descriptions as virtual fonts might extend them (ok, we could +-- use a cache with a hash + +function otf.copy_to_tfm(data,cache_id) -- we can save a copy when we reorder the tma to unicode (nasty due to one->many) + if data then + local glyphs, pfminfo, metadata = data.glyphs or { }, data.pfminfo or { }, data.metadata or { } + local luatex = data.luatex + local unicodes = luatex.unicodes -- names to unicodes + local indices = luatex.indices + local characters, parameters, math_parameters, descriptions = { }, { }, { }, { } + local tfm = { + characters = characters, + parameters = parameters, + math_parameters = math_parameters, + descriptions = descriptions, + indices = indices, + unicodes = unicodes, + } + -- indices maps from unicodes to indices + for u, i in next, indices do + characters[u] = { } -- we need this because for instance we add protruding info and loop over characters + descriptions[u] = glyphs[i] + end + -- math + if metadata.math then + -- parameters + for name, value in next, metadata.math do + math_parameters[name] = value + end + -- we could use a subset + for u, char in next, characters do + local d = descriptions[u] + local m = d.math + -- we have them shared because that packs nicer + -- we could prepare the variants and keep 'm in descriptions + if m then + local variants = m.horiz_variants + if variants then + local c = char + for n in variants:gmatch("[^ ]+") do + local un = unicodes[n] + if un and u ~= un then + c.next = un + c = characters[un] + end + end + c.horiz_variants = m.horiz_parts + else + local variants = m.vert_variants + if variants then + local c = char + for n in variants:gmatch("[^ ]+") do + local un = unicodes[n] + if un and u ~= un then + c.next = un + c = characters[un] + end + end + c.vert_variants = m.vert_parts + end + end + local kerns = m.kerns + if kerns then + char.mathkerns = kerns + end + end + end + end + -- end math + local designsize = metadata.designsize or metadata.design_size or 100 + if designsize == 0 then + designsize = 100 + end + local spaceunits = 500 + tfm.units = metadata.units_per_em or 1000 + -- we need a runtime lookup because of running from cdrom or zip, brrr + tfm.filename = resolvers.findbinfile(luatex.filename,"") or luatex.filename + tfm.fullname = metadata.fontname or metadata.fullname + tfm.psname = tfm.fullname + tfm.encodingbytes = 2 + tfm.cidinfo = data.cidinfo + tfm.cidinfo.registry = tfm.cidinfo.registry or "" + tfm.type = "real" + tfm.stretch = 0 -- stretch + tfm.slant = 0 -- slant + tfm.direction = 0 + tfm.boundarychar_label = 0 + tfm.boundarychar = 65536 + tfm.designsize = (designsize/10)*65536 + tfm.spacer = "500 units" + local endash, emdash = 0x20, 0x2014 -- unicodes['space'], unicodes['emdash'] + if metadata.isfixedpitch then + if descriptions[endash] then + spaceunits, tfm.spacer = descriptions[endash].width, "space" + end + if not spaceunits and descriptions[emdash] then + spaceunits, tfm.spacer = descriptions[emdash].width, "emdash" + end + if not spaceunits and metadata.charwidth then + spaceunits, tfm.spacer = metadata.charwidth, "charwidth" + end + else + if descriptions[endash] then + spaceunits, tfm.spacer = descriptions[endash].width, "space" + end + if not spaceunits and descriptions[emdash] then + spaceunits, tfm.spacer = descriptions[emdash].width/2, "emdash/2" + end + if not spaceunits and metadata.charwidth then + spaceunits, tfm.spacer = metadata.charwidth, "charwidth" + end + end + spaceunits = tonumber(spaceunits) or tfm.units/2 -- 500 -- brrr + parameters.slant = 0 + parameters.space = spaceunits -- 3.333 (cmr10) + parameters.space_stretch = tfm.units/2 -- 500 -- 1.666 (cmr10) + parameters.space_shrink = 1*tfm.units/3 -- 333 -- 1.111 (cmr10) + parameters.x_height = 2*tfm.units/5 -- 400 + parameters.quad = tfm.units -- 1000 + if spaceunits < 2*tfm.units/5 then + -- todo: warning + end + local italicangle = metadata.italicangle + tfm.ascender = math.abs(metadata.ascent or 0) + tfm.descender = math.abs(metadata.descent or 0) + if italicangle then -- maybe also in afm _ + tfm.italicangle = italicangle + parameters.slant = parameters.slant - math.round(math.tan(italicangle*math.pi/180)) + end + if metadata.isfixedpitch then + parameters.space_stretch = 0 + parameters.space_shrink = 0 + elseif otf.syncspace then -- + parameters.space_stretch = spaceunits/2 + parameters.space_shrink = spaceunits/3 + end + parameters.extra_space = parameters.space_shrink -- 1.111 (cmr10) + if pfminfo.os2_xheight and pfminfo.os2_xheight > 0 then + parameters.x_height = pfminfo.os2_xheight + else + local x = 0x78 -- unicodes['x'] + if x then + local x = descriptions[x] + if x then + parameters.x_height = x.height + end + end + end + -- [6] + return tfm + else + return nil + end +end + +otf.features.register('mathsize') + +function tfm.read_from_open_type(specification) + local tfmtable = otf.otf_to_tfm(specification) + if tfmtable then + local otfdata = tfmtable.shared.otfdata + tfmtable.name = specification.name + tfmtable.sub = specification.sub + local s = specification.size + local m = otfdata.metadata.math + if m then + local f = specification.features + if f then + local f = f.normal + if f and f.mathsize then + local mathsize = specification.mathsize or 0 + if mathsize == 2 then + local p = m.ScriptPercentScaleDown + if p then + local ps = p * specification.textsize / 100 + if trace_math then + logs.report("define font","asked script size: %s, used: %s (%2.2f %%)",s,ps,(ps/s)*100) + end + s = ps + end + elseif mathsize == 3 then + local p = m.ScriptScriptPercentScaleDown + if p then + local ps = p * specification.textsize / 100 + if trace_math then + logs.report("define font","asked scriptscript size: %s, used: %s (%2.2f %%)",s,ps,(ps/s)*100) + end + s = ps + end + end + end + end + end + tfmtable = tfm.scale(tfmtable,s) + -- here we resolve the name; file can be relocated, so this info is not in the cache + local filename = (otfdata and otfdata.luatex and otfdata.luatex.filename) or specification.filename + if not filename then + -- try to locate anyway and set otfdata.luatex.filename + end + if filename then + tfmtable.encodingbytes = 2 + tfmtable.filename = resolvers.findbinfile(filename,"") or filename + tfmtable.fullname = tfmtable.fullname or otfdata.metadata.fontname or otfdata.metadata.fullname + local order = otfdata and otfdata.metadata.order2 + if order == 0 then + tfmtable.format = 'opentype' + elseif order == 1 then + tfmtable.format = 'truetype' + else + tfmtable.format = specification.format + end + tfmtable.name = tfmtable.filename or tfmtable.fullname + end + fonts.logger.save(tfmtable,file.extname(specification.filename),specification) + end +--~ print(tfmtable.fullname) + return tfmtable +end |