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authorElie Roux <elie.roux@telecom-bretagne.eu>2013-04-23 07:24:49 -0700
committerElie Roux <elie.roux@telecom-bretagne.eu>2013-04-23 07:24:49 -0700
commit63ee07f1f4021d07c5d89b706f2a9f1d8a4d97c9 (patch)
tree44ad64b7785d86d3ad47a1a2032e22f0c866c042 /otfl-font-map.lua
parent9291e1983240e72d93815a096963dc28a7acd770 (diff)
parent80ab69f3c89c4ee576310e073510f286ad0f3b66 (diff)
downloadluaotfload-63ee07f1f4021d07c5d89b706f2a9f1d8a4d97c9.tar.gz
Merge pull request #1 from phi-gamma/master
Updating with current master
Diffstat (limited to 'otfl-font-map.lua')
-rw-r--r--otfl-font-map.lua307
1 files changed, 0 insertions, 307 deletions
diff --git a/otfl-font-map.lua b/otfl-font-map.lua
deleted file mode 100644
index 7f5305f..0000000
--- a/otfl-font-map.lua
+++ /dev/null
@@ -1,307 +0,0 @@
-if not modules then modules = { } end modules ['font-map'] = {
- 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 match, format, find, concat, gsub, lower = string.match, string.format, string.find, table.concat, string.gsub, string.lower
-local P, R, S, C, Ct, Cc, lpegmatch = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.match
-local utfbyte = utf.byte
-
-local trace_loading = false trackers.register("fonts.loading", function(v) trace_loading = v end)
-local trace_mapping = false trackers.register("fonts.mapping", function(v) trace_unimapping = v end)
-
-local report_fonts = logs.reporter("fonts","loading") -- not otf only
-
-local fonts = fonts
-local mappings = { }
-fonts.mappings = mappings
-
---[[ldx--
-<p>Eventually this code will disappear because map files are kind
-of obsolete. Some code may move to runtime or auxiliary modules.</p>
-<p>The name to unciode related code will stay of course.</p>
---ldx]]--
-
-local function loadlumtable(filename) -- will move to font goodies
- local lumname = file.replacesuffix(file.basename(filename),"lum")
- local lumfile = resolvers.findfile(lumname,"map") or ""
- if lumfile ~= "" and lfs.isfile(lumfile) then
- if trace_loading or trace_mapping then
- report_fonts("enhance: loading %s ",lumfile)
- end
- lumunic = dofile(lumfile)
- return lumunic, lumfile
- end
-end
-
-local hex = R("AF","09")
-local hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end
-local hexsix = (hex^1) / function(s) return tonumber(s,16) end
-local dec = (R("09")^1) / tonumber
-local period = P(".")
-local unicode = P("uni") * (hexfour * (period + P(-1)) * Cc(false) + Ct(hexfour^1) * Cc(true))
-local ucode = P("u") * (hexsix * (period + P(-1)) * Cc(false) + Ct(hexsix ^1) * Cc(true))
-local index = P("index") * dec * Cc(false)
-
-local parser = unicode + ucode + index
-
-local parsers = { }
-
-local function makenameparser(str)
- if not str or str == "" then
- return parser
- else
- local p = parsers[str]
- if not p then
- p = P(str) * period * dec * Cc(false)
- parsers[str] = p
- end
- return p
- end
-end
-
---~ local parser = mappings.makenameparser("Japan1")
---~ local parser = mappings.makenameparser()
---~ local function test(str)
---~ local b, a = lpegmatch(parser,str)
---~ print((a and table.serialize(b)) or b)
---~ end
---~ test("a.sc")
---~ test("a")
---~ test("uni1234")
---~ test("uni1234.xx")
---~ test("uni12349876")
---~ test("index1234")
---~ test("Japan1.123")
-
-local function tounicode16(unicode)
- if unicode < 0x10000 then
- return format("%04X",unicode)
- else
- return format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00)
- end
-end
-
-local function tounicode16sequence(unicodes)
- local t = { }
- for l=1,#unicodes do
- local unicode = unicodes[l]
- if unicode < 0x10000 then
- t[l] = format("%04X",unicode)
- else
- t[l] = format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00)
- end
- end
- return concat(t)
-end
-
-local function fromunicode16(str)
- if #str == 4 then
- return tonumber(str,16)
- else
- local l, r = match(str,"(....)(....)")
- return (tonumber(l,16)- 0xD800)*0x400 + tonumber(r,16) - 0xDC00
- end
-end
-
---~ This is quite a bit faster but at the cost of some memory but if we
---~ do this we will also use it elsewhere so let's not follow this route
---~ now. I might use this method in the plain variant (no caching there)
---~ but then I need a flag that distinguishes between code branches.
---~
---~ local cache = { }
---~
---~ function mappings.tounicode16(unicode)
---~ local s = cache[unicode]
---~ if not s then
---~ if unicode < 0x10000 then
---~ s = format("%04X",unicode)
---~ else
---~ s = format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00)
---~ end
---~ cache[unicode] = s
---~ end
---~ return s
---~ end
-
-mappings.loadlumtable = loadlumtable
-mappings.makenameparser = makenameparser
-mappings.tounicode16 = tounicode16
-mappings.tounicode16sequence = tounicode16sequence
-mappings.fromunicode16 = fromunicode16
-
-local separator = S("_.")
-local other = C((1 - separator)^1)
-local ligsplitter = Ct(other * (separator * other)^0)
-
---~ print(table.serialize(lpegmatch(ligsplitter,"this")))
---~ print(table.serialize(lpegmatch(ligsplitter,"this.that")))
---~ print(table.serialize(lpegmatch(ligsplitter,"japan1.123")))
---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more")))
---~ print(table.serialize(lpegmatch(ligsplitter,"such_so_more.that")))
-
-function mappings.addtounicode(data,filename)
- local resources = data.resources
- local properties = data.properties
- local descriptions = data.descriptions
- local unicodes = resources.unicodes
- if not unicodes then
- return
- end
- -- we need to move this code
- unicodes['space'] = unicodes['space'] or 32
- unicodes['hyphen'] = unicodes['hyphen'] or 45
- unicodes['zwj'] = unicodes['zwj'] or 0x200D
- unicodes['zwnj'] = unicodes['zwnj'] or 0x200C
- -- the tounicode mapping is sparse and only needed for alternatives
- local private = fonts.constructors.privateoffset
- local unknown = format("%04X",utfbyte("?"))
- local unicodevector = fonts.encodings.agl.unicodes -- loaded runtime in context
- local tounicode = { }
- local originals = { }
- resources.tounicode = tounicode
- resources.originals = originals
- local lumunic, uparser, oparser
- local cidinfo, cidnames, cidcodes, usedmap
- if false then -- will become an option
- lumunic = loadlumtable(filename)
- lumunic = lumunic and lumunic.tounicode
- end
- --
- cidinfo = properties.cidinfo
- usedmap = cidinfo and fonts.cid.getmap(cidinfo)
- --
- if usedmap then
- oparser = usedmap and makenameparser(cidinfo.ordering)
- cidnames = usedmap.names
- cidcodes = usedmap.unicodes
- end
- uparser = makenameparser()
- local ns, nl = 0, 0
- for unic, glyph in next, descriptions do
- local index = glyph.index
- local name = glyph.name
- 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] or unicodevector[name]
- if unicode then
- originals[index] = unicode
- tounicode[index] = tounicode16(unicode)
- ns = 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 = lpegmatch(oparser,name)
- if foundindex then
- unicode = cidcodes[foundindex] -- name to number
- if unicode then
- originals[index] = unicode
- tounicode[index] = tounicode16(unicode)
- ns = ns + 1
- else
- local reference = cidnames[foundindex] -- number to name
- if reference then
- local foundindex = lpegmatch(oparser,reference)
- if foundindex then
- unicode = cidcodes[foundindex]
- if unicode then
- originals[index] = unicode
- tounicode[index] = tounicode16(unicode)
- ns = ns + 1
- end
- end
- if not unicode then
- local foundcodes, multiple = lpegmatch(uparser,reference)
- if foundcodes then
- originals[index] = foundcodes
- if multiple then
- tounicode[index] = tounicode16sequence(foundcodes)
- nl = nl + 1
- unicode = true
- else
- tounicode[index] = tounicode16(foundcodes)
- ns = ns + 1
- unicode = 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 = lpegmatch(ligsplitter,name)
- local nplit = split and #split or 0
- if nplit >= 2 then
- local t, n = { }, 0
- for l=1,nplit do
- local base = split[l]
- local u = unicodes[base] or unicodevector[base]
- if not u then
- break
- elseif type(u) == "table" then
- n = n + 1
- t[n] = u[1]
- else
- n = n + 1
- t[n] = u
- end
- end
- if n == 0 then -- done then
- -- nothing
- elseif n == 1 then
- originals[index] = t[1]
- tounicode[index] = tounicode16(t[1])
- else
- originals[index] = t
- tounicode[index] = tounicode16sequence(t)
- end
- nl = nl + 1
- unicode = true
- else
- -- skip: already checked and we don't want privates here
- end
- end
- -- last resort (we might need to catch private here as well)
- if not unicode then
- local foundcodes, multiple = lpegmatch(uparser,name)
- if foundcodes then
- if multiple then
- originals[index] = foundcodes
- tounicode[index] = tounicode16sequence(foundcodes)
- nl = nl + 1
- unicode = true
- else
- originals[index] = foundcodes
- tounicode[index] = tounicode16(foundcodes)
- ns = ns + 1
- unicode = foundcodes
- end
- end
- end
- -- if not unicode then
- -- originals[index] = 0xFFFD
- -- tounicode[index] = "FFFD"
- -- end
- end
- end
- if trace_mapping then
- for unic, glyph in table.sortedhash(descriptions) do
- local name = glyph.name
- local index = glyph.index
- local toun = tounicode[index]
- if toun then
- report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X, tounicode: %s",index,name,unic,toun)
- else
- report_fonts("internal: 0x%05X, name: %s, unicode: U+%05X",index,name,unic)
- end
- end
- end
- if trace_loading and (ns > 0 or nl > 0) then
- report_fonts("enhance: %s tounicode entries added (%s ligatures)",nl+ns, ns)
- end
-end