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-rw-r--r--otfl-font-map.lua218
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diff --git a/otfl-font-map.lua b/otfl-font-map.lua
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+if not modules then modules = { } end modules ['font-map'] = {
+ version = 1.001,
+ comment = "companion to font-ini.tex",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+local match, format, find, concat = string.match, string.format, string.find, table.concat
+
+local trace_loading = false trackers.register("otf.loading", function(v) trace_loading = v end)
+
+local ctxcatcodes = tex.ctxcatcodes
+
+--[[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]]--
+
+fonts = fonts or { }
+fonts.map = fonts.map or { }
+fonts.map.data = fonts.map.data or { }
+fonts.map.encodings = fonts.map.encodings or { }
+fonts.map.done = fonts.map.done or { }
+fonts.map.loaded = fonts.map.loaded or { }
+fonts.map.direct = fonts.map.direct or { }
+fonts.map.line = fonts.map.line or { }
+
+function fonts.map.line.pdfmapline(tag,str)
+ return "\\loadmapline[" .. tag .. "][" .. str .. "]"
+end
+
+function fonts.map.line.pdftex(e) -- so far no combination of slant and stretch
+ if e.name and e.fontfile then
+ local fullname = e.fullname or ""
+ if e.slant and e.slant ~= 0 then
+ if e.encoding then
+ return fonts.map.line.pdfmapline("=",format('%s %s "%g SlantFont" <%s <%s',e.name,fullname,e.slant,e.encoding,e.fontfile))
+ else
+ return fonts.map.line.pdfmapline("=",format('%s %s "%g SlantFont" <%s',e.name,fullname,e.slant,e.fontfile))
+ end
+ elseif e.stretch and e.stretch ~= 1 and e.stretch ~= 0 then
+ if e.encoding then
+ return fonts.map.line.pdfmapline("=",format('%s %s "%g ExtendFont" <%s <%s',e.name,fullname,e.stretch,e.encoding,e.fontfile))
+ else
+ return fonts.map.line.pdfmapline("=",format('%s %s "%g ExtendFont" <%s',e.name,fullname,e.stretch,e.fontfile))
+ end
+ else
+ if e.encoding then
+ return fonts.map.line.pdfmapline("=",format('%s %s <%s <%s',e.name,fullname,e.encoding,e.fontfile))
+ else
+ return fonts.map.line.pdfmapline("=",format('%s %s <%s',e.name,fullname,e.fontfile))
+ end
+ end
+ else
+ return nil
+ end
+end
+
+function fonts.map.flush(backend) -- will also erase the accumulated data
+ local flushline = fonts.map.line[backend or "pdftex"] or fonts.map.line.pdftex
+ for _, e in pairs(fonts.map.data) do
+ tex.sprint(ctxcatcodes,flushline(e))
+ end
+ fonts.map.data = { }
+end
+
+fonts.map.line.dvips = fonts.map.line.pdftex
+fonts.map.line.dvipdfmx = function() end
+
+function fonts.map.convert_entries(filename)
+ if not fonts.map.loaded[filename] then
+ fonts.map.data, fonts.map.encodings = fonts.map.load_file(filename,fonts.map.data, fonts.map.encodings)
+ fonts.map.loaded[filename] = true
+ end
+end
+
+function fonts.map.load_file(filename, entries, encodings)
+ entries = entries or { }
+ encodings = encodings or { }
+ local f = io.open(filename)
+ if f then
+ local data = f:read("*a")
+ if data then
+ for line in gmatch(data,"(.-)[\n\t]") do
+ if find(line,"^[%#%%%s]") then
+ -- print(line)
+ else
+ local stretch, slant, name, fullname, fontfile, encoding
+ line = line:gsub('"(.+)"', function(s)
+ stretch = find(s,'"([^"]+) ExtendFont"')
+ slant = find(s,'"([^"]+) SlantFont"')
+ return ""
+ end)
+ if not name then
+ -- name fullname encoding fontfile
+ name, fullname, encoding, fontfile = match(line,"^(%S+)%s+(%S*)[%s<]+(%S*)[%s<]+(%S*)%s*$")
+ end
+ if not name then
+ -- name fullname (flag) fontfile encoding
+ name, fullname, fontfile, encoding = match(line,"^(%S+)%s+(%S*)[%d%s<]+(%S*)[%s<]+(%S*)%s*$")
+ end
+ if not name then
+ -- name fontfile
+ name, fontfile = match(line,"^(%S+)%s+[%d%s<]+(%S*)%s*$")
+ end
+ if name then
+ if encoding == "" then encoding = nil end
+ entries[name] = {
+ name = name, -- handy
+ fullname = fullname,
+ encoding = encoding,
+ fontfile = fontfile,
+ slant = tonumber(slant),
+ stretch = tonumber(stretch)
+ }
+ encodings[name] = encoding
+ elseif line ~= "" then
+ -- print(line)
+ end
+ end
+ end
+ end
+ f:close()
+ end
+ return entries, encodings
+end
+
+function fonts.map.load_lum_table(filename)
+ local lumname = file.replacesuffix(file.basename(filename),"lum")
+ local lumfile = resolvers.find_file(lumname,"map") or ""
+ if lumfile ~= "" and lfs.isfile(lumfile) then
+ if trace_loading or trace_unimapping then
+ logs.report("load otf","enhance: loading %s ",lumfile)
+ end
+ lumunic = dofile(lumfile)
+ return lumunic, lumfile
+ end
+end
+
+local hex = lpeg.R("AF","09")
+local hexfour = (hex*hex*hex*hex) / function(s) return tonumber(s,16) end
+local dec = (lpeg.R("09")^1) / tonumber
+local period = lpeg.P(".")
+
+local unicode = lpeg.P("uni") * (hexfour * (period + lpeg.P(-1)) * lpeg.Cc(false) + lpeg.Ct(hexfour^1) * lpeg.Cc(true))
+local index = lpeg.P("index") * dec * lpeg.Cc(false)
+
+local parser = unicode + index
+
+local parsers = { }
+
+function fonts.map.make_name_parser(str)
+ if not str or str == "" then
+ return parser
+ else
+ local p = parsers[str]
+ if not p then
+ p = lpeg.P(str) * period * dec * lpeg.Cc(false)
+ parsers[str] = p
+ end
+ return p
+ end
+end
+
+--~ local parser = fonts.map.make_name_parser("Japan1")
+--~ local function test(str)
+--~ local b, a = parser:match(str)
+--~ print((a and table.serialize(b)) or b)
+--~ end
+--~ test("uni1234")
+--~ test("uni1234.xx")
+--~ test("uni12349876")
+--~ test("index1234")
+--~ test("Japan1.123")
+
+function fonts.map.tounicode16(unicode)
+ if unicode < 0x10000 then
+ return format("%04X",unicode)
+ else
+ return format("%04X%04X",unicode/1024+0xD800,unicode%1024+0xDC00)
+ end
+end
+
+function fonts.map.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
+
+--~ 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 fonts.map.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
+