diff options
Diffstat (limited to 'Master/texmf-dist/tex/luatex/luatexja/ltj-rmlgbm.lua')
-rw-r--r-- | Master/texmf-dist/tex/luatex/luatexja/ltj-rmlgbm.lua | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-rmlgbm.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-rmlgbm.lua new file mode 100644 index 00000000000..006d559454d --- /dev/null +++ b/Master/texmf-dist/tex/luatex/luatexja/ltj-rmlgbm.lua @@ -0,0 +1,166 @@ +-- +-- luatexja/rmlgbm.lua +-- +luatexbase.provides_module({ + name = 'luatexja.rmlgbm', + date = '2012/04/21', + version = '0.3', + description = 'Definitions of non-embedded Japanese (or other CJK) fonts', +}) +module('luatexja.rmlgbm', package.seeall) +local err, warn, info, log = luatexbase.errwarinf(_NAME) + +luatexja.load_module('base'); local ltjb = luatexja.base + +local round = tex.round +local cidfont_data = {} +local cache_chars = {} +local taux_dir = 'luatex-cache/luatexja' +local path = { + localdir = file.join(kpse.expand_var("$TEXMFVAR"), aux_dir), + systemdir = file.join(kpse.expand_var("$TEXMFSYSVAR"), aux_dir), +} + +-- +local function read_cid_font(cid_name) + local v = "ltj-cid-" .. string.lower(cid_name) .. ".lua" + local localpath = file.join(path.localdir, v) + local systempath = file.join(path.systemdir, v) + local kpsefound = kpse.find_file(v) + if kpsefound and file.isreadable(kpsefound) then + cidfont_data[cid_name] = require(kpsefound) + cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters } + return + elseif file.isreadable(localpath) then + cidfont_data[cid_name] = require(localpath) + cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters } + return + elseif file.isreadable(systempath) then + cidfont_data[cid_name] = require(systempath) + cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters } + return + end + -- +end + +-- High-level +local function mk_rml(name, size, id, cid_name) + local specification = fonts.define.analyze(name,size) + specification = fonts.define.specify[':'](specification) + local features = specification.features.normal + + local fontdata = {} + local cachedata = {} + local s = cidfont_data[cid_name] + for k, v in pairs(s) do + fontdata[k] = v + cachedata[k] = v + end + fontdata.characters = nil + cachedata.characters = nil + fontdata.unicodes = nil + fontdata.shared = nil + cachedata.shared = nil + if s.shared then + cachedata.shared = {} + local shared = cachedata.shared + for k, v in pairs(s.shared) do + shared[k] = v + end + + shared.set_dynamics = fonts.otf.set_dynamics + shared.processes, shared.features = fonts.otf.set_features(cachedata,fonts.define.check(features,fonts.otf.features.default)) + end + + -- characters & scaling + if size < 0 then size = -size * 655.36 end + local scale = size / 655360 + local def_height = round(0.88 * size) -- character's default height (optimized for jfm-ujis.lua) + local def_depth = round(0.12 * size) -- and depth. + if not cache_chars[cid_name][size] then + cache_chars[cid_name][size] = {} + for k, v in pairs(cache_chars[cid_name][655360]) do + cache_chars[cid_name][size][k] = { + index = v.index, width = round(v.width * scale), + height = def_height, depth = def_depth, tounicode = v.tounicode, + } + end + end + fontdata.characters = cache_chars[cid_name][size] + cachedata.characters = cache_chars[cid_name][size] + + local parameters = {} + for k, v in pairs(s.parameters) do + parameters[k] = v * scale + end + fontdata.parameters = parameters; cachedata.parameters = parameters + fontdata.ascender = fontdata.ascender * scale; cachedata.ascender = fontdata.ascender + fontdata.descender = fontdata.descender * scale; cachedata.descender = fontdata.descender + fontdata.factor = fontdata.factor * scale; cachedata.factor = fontdata.factor + fontdata.hfactor = fontdata.hfactor * scale; cachedata.hfactor = fontdata.hfactor + fontdata.vfactor = fontdata.vfactor * scale; cachedata.vfactor = fontdata.vfactor + fontdata.size = size; cachedata.size = size + + -- no embedding + local var = '' + if features.slant then + fontdata.slant = features.slant*1000; cachedata.slant = fontdata.slant + var = var .. 's' .. tostring(features.slant) + end + if features.extend then + fontdata.extend = features.extend*1000; cachedata.extend = fontdata.extend + var = var .. 'x' .. tostring(features.extend) + end + fontdata.name = specification.name .. size .. var; cachedata.name = fontdata.name + fontdata.fullname = specification.name .. var; cachedata.fullname = fontdata.fullname + fontdata.psname = specification.name; cachedata.psname = fontdata.psname + fonts.ids[id] = cachedata + + return fontdata +end + +local dr_orig = fonts.define.read +function fonts.define.read(name, size, id) + local p = utf.find(name, ":") or utf.len(name)+1 + if utf.sub(name, 1, p-1) == 'psft' then + local cid_reg, cid_order, cid_name + local s = "Adobe-Japan1-6" + local basename = utf.sub(name,p+1) + local p = utf.find(basename, ":") + if p then + local xname = utf.sub(basename, p+1) + p = 1 + while p do + local q = utf.find(xname, ";", p+1) or utf.len(xname)+1 + if utf.sub(xname, p, p+3)=='cid=' and q>p+4 then + s = utf.sub(xname, p+4, q-1) + end + if utf.len(xname)+1==q then p = nil else p = q + 1 end + end + end + cid_reg, cid_order = string.match(s, "^(.-)%-(.-)%-(%d-)$") + if not cid_reg then + cid_reg, cid_order = string.match(s, "^(.-)%-(.-)$") + end + cid_name = cid_reg .. '-' .. cid_order + if not cidfont_data[cid_name] then + read_cid_font(cid_name) + if not cidfont_data[cid_name] then + ltjb.package_error('luatexja', + "bad cid key `" .. s .. "'", + "I couldn't find any non-embedded font information for the CID\n" .. + '`' .. s .. "'. For now, I'll use `Adobe-Japan1-6'.\n".. + 'Please contact the LuaTeX-ja project team.') + cid_name = "Adobe-Japan1" + end + end + return mk_rml(basename, size, id, cid_name) + else + return dr_orig(name, size, id) + end +end + + +read_cid_font("Adobe-Japan1") + + |