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-rw-r--r--luaotfload.dtx2
-rw-r--r--otfl-compat-font-otf.lua1629
2 files changed, 1 insertions, 1630 deletions
diff --git a/luaotfload.dtx b/luaotfload.dtx
index f5e62b1..a155ffa 100644
--- a/luaotfload.dtx
+++ b/luaotfload.dtx
@@ -477,7 +477,7 @@ 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', 1)
+luaotfload.loadmodule('font-otf.lua')
luaotfload.loadmodule('font-otd.lua')
luaotfload.loadmodule('font-oti.lua')
luaotfload.loadmodule('font-otb.lua')
diff --git a/otfl-compat-font-otf.lua b/otfl-compat-font-otf.lua
deleted file mode 100644
index be18738..0000000
--- a/otfl-compat-font-otf.lua
+++ /dev/null
@@ -1,1629 +0,0 @@
-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
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 08:21:50 +0000