diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua |
Initial commit
Diffstat (limited to 'macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua')
-rw-r--r-- | macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua b/macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua new file mode 100644 index 0000000000..357560c4bf --- /dev/null +++ b/macros/luatex/generic/luatexja/src/ltj-rmlgbm.lua @@ -0,0 +1,416 @@ +-- +-- luatexja/ltj-rmlgbm.lua +-- +luatexja.load_module('base'); local ltjb = luatexja.base + +local cidfont_data = {} +local cache_chars = {} +local cache_ver = 8 +local identifiers = fonts.hashes.identifiers + +local cid_reg, cid_order, cid_supp, cid_name +local cid_replace = { + ["Adobe-Japan1"] = {"UniJIS2004-UTF32", 23059, 7, + function (i) + if (231<=i and i<=632) or (8718<=i and i<=8719) + or (12063<=i and i<=12087) then + return 327680 -- 655360/2 + elseif 9758<=i and i<=9778 then + return 218453 -- 655360/3 + elseif 9738<=i and i<=9757 then + return 163840 -- 655360/4 + end + end}, + -- 基本的には JIS X 0213:2004 に沿ったマッピング + ["Adobe-Korea1"] = {"UniKS-UTF32", 18351, 2, + function (i) + if 8094<=i and i<=8100 then + return 327680 -- 655360/2 + end + end}, + ["Adobe-GB1"] = {"UniGB-UTF32", 30283, 5, + function (i) + if (814<=i and i<=939) or (i==7716) + or (22355<=i and i<=22357) then + return 327680 -- 655360/2 + end + end}, + ["Adobe-CNS1"] = {"UniCNS-UTF32", 19178, 7, + function (i) + if (13648<=i and i<=13742) or (i==17603) then + return 327680 -- 655360/2 + end + end}, + ["Adobe-KR"] = {"UniAKR-UTF32", 22896, 9, + function (i) + if i==3057 then + return 655360*2 + elseif i==3058 then + return 655360*3 + elseif i==12235 or i==12236 then + return 163840 -- 655360/4 + end + end}, +} + +-- reading CID maps +local make_cid_font +do + local line, fh -- line, file handler + local tt,cidm -- characters, cid->(Unicode) + + local function load_cid_char(cid_dec, mke) + local cid, ucs, ucsa + line = fh:read("*l") + while line do + if string.find(line, "end...?char") then + line = fh:read("*l"); return + else -- WMA l is in the form "<%x+>%s%d+" + ucs, cid = string.match(line, "<(%x+)>%s+<?(%x+)>?") + cid = cid_dec(cid); ucs = tonumber(ucs, 16); + if not tt[ucs] then + tt[ucs] = mke(cid); cidm[cid]=ucs + end + end + line = fh:read("*l") + end + end + + local function load_cid_range(inc, cid_dec, mke) + local bucs, eucs, cid + line = fh:read("*l") + while line do + if string.find(line, "end...?range") then + line = fh:read("*l"); return + else -- WMA l is in the form "<%x+>%s+<%x+>" + bucs, eucs, cid = string.match(line, "<(%x+)>%s+<(%x+)>%s+<?(%x+)>?") + cid = cid_dec(cid); + bucs = tonumber(bucs, 16); eucs = tonumber(eucs, 16) + for ucs = bucs, eucs do + if not tt[ucs] then + tt[ucs] = mke(cid); cidm[cid]=ucs + end + cid = inc(cid) + end + end + line = fh:read("*l") + end + end + + local function open_cmap_file(name, inc, cid_dec, mke) + local fn = kpse.find_file(name, 'cmap files') + if fn then + fh = io.open(fn, "r") + line = fh:read("*l") + while line do + if string.find(line, "%x+%s+begin...?char") then + load_cid_char(cid_dec, mke) + elseif string.find(line, "%x+%s+begin...?range") then + load_cid_range(inc, cid_dec, mke) + else + line = fh:read("*l") + end + end + fh:close(); + end + end + + local function increment(a) return a+1 end + local function entry(a) + return {index = a} + end + local feat_dummy_vert = { gsub={vert={dflt={dflt=true}}} } + local seq_dummy_vert={{ + features={vert={dflt={dflt=true}}}, + --flags={false,false,false,false}, + --index=1, name="s_s_0", skiphash=false, steps={coverage={},index=1}, + ["type"]="gsub_single", order='vert', + }} + make_cid_font = function () + local kx = cid_replace[cid_name] + if not kx then return end + local k = { + cidinfo = { ordering=cid_order, registry=cid_reg, supplement=kx[3] }, + encodingbytes = 2, extend=1000, format = 'opentype', + direction = 0, characters = {}, parameters = { + ascender = 655360*0.88, + descender = 655360*0.12, + }, + embedding = "no", cache = "yes", factor = 0, hfactor = 0, vfactor = 0, + tounicode = 1, + properties = { language = "dflt", script = "dflt" }, + } + cidfont_data[cid_name] = k + + -- CID => Unicode 符号空間 + local tth, cidmo = {}, {} + tt, cidm = tth, cidmo + for i = 0,kx[2] do cidm[i] = -1 end + open_cmap_file(kx[1] .. "-H", increment, tonumber, entry) + k.characters = tth + + -- Unicode にマップされなかった文字の処理 + -- これらは TrueType フォントを使って表示するときはおかしくなる + local ttu, pricode = {}, 0xF0000 + for i,v in ipairs(cidmo) do + if v==-1 then + tth[pricode], cidmo[i], pricode + = { index = i }, pricode, pricode+1; + end + ttu[cid_order .. '.' .. i] = cidmo[i] + end + + -- shared + k.shared = { + otfdata = { + cidinfo= k.cidinfo, verbose = false, + shared = { featuredata = {}, }, + }, + dynamics = {}, processes = {}, + rawdata = {}, features={}, + } + k.resources = { + unicodes = ttu, + features = feat_dummy_vert, + sequences = seq_dummy_vert, + } + k.descriptions = {} + k.shared.rawdata.resources=k.resources + k.shared.rawdata.descriptions=k.descriptions + cache_chars[cid_name] = { [655360] = k.characters } + + -- 縦書用字形 + tt, cidm = {}, {} + local ttv = {}; k.shared.ltj_vert_table = ttv + for i = 0,kx[2] do cidm[i] = -1 end + open_cmap_file(kx[1] .. "-V", increment, tonumber, entry) + for i,v in pairs(tt) do + ttv[i] = cidmo[v.index] -- "unicode" of vertical variant + end + + -- tounicode エントリ + local cidp = {nil, nil}; tt, ttu, cidm = {}, {}, {} + open_cmap_file(cid_name .. "-UCS2", + function(a) + a[2] = a[2] +1 ; return a + end, + function(a) + cidp[1] = string.upper(string.sub(a,1,string.len(a)-4)) + cidp[2] = tonumber(string.sub(a,-4),16) + return cidp + end, + function(a) return a[1] ..string.format('%04X',a[2]) end) + -- tt は cid -> tounicode になっているので cidm -> tounicode に変換 + local kxf = kx[4] + for i,v in ipairs(cidmo) do + k.characters[v].width = kxf(i) + if v>=0xF0000 then + k.characters[v].tounicode = tt[i] + end + end + + -- Save + k.characters[46].width = math.floor(655360/14); + ltjb.save_cache( "ltj-cid-auto-" .. string.lower(cid_name), + { + version = cache_ver, + k, + }) + end +end + +-- +local cidf_vert_processor +do + local traverse_id, is_node = node.direct.traverse_id, node.is_node + local to_direct = node.direct.todirect + local id_glyph = node.id('glyph') + local getfont = node.direct.getfont + local getchar = node.direct.getchar + local setchar = node.direct.setchar + cidf_vert_processor = { + function (head, fnum) + local fontdata = identifiers[fnum] + if head and luatexja.jfont.font_metric_table[fnum].vert_activated then + local vt = fontdata.shared.ltj_vert_table + local nh = is_node(head) and to_direct(head) or head + for n in traverse_id(id_glyph, head) do + if getfont(n)==fnum then + local c = getchar(n); setchar(n, vt[c] or c) + end + end + return head, false + end + end + } +end + +local function cid_cache_outdated(t) return t.version~=cache_ver end +local function read_cid_font() + local dat = ltjb.load_cache("ltj-cid-auto-" .. string.lower(cid_name), + cid_cache_outdated ) + if dat then + cidfont_data[cid_name] = dat[1] + cache_chars[cid_name] = { [655360] = cidfont_data[cid_name].characters } + else + -- Now we must create the virtual metrics from CMap. + make_cid_font() + end + if cidfont_data[cid_name] then + cidfont_data[cid_name].shared.processes = cidf_vert_processor + for i,v in pairs(cidfont_data[cid_name].characters) do + if not v.width then v.width = 655360 end + v.height, v.depth = 576716.8, 78643.2 -- optimized for jfm-ujis.lua + end + return cidfont_data[cid_name] + else + return nil + end +end + +-- High-level +local function prepare_cid_font(reg, ord) + cid_reg, cid_order, cid_name, cid_supp = reg, ord, reg .. '-' .. ord + return cidfont_data[cid_name] or read_cid_font() +end + + +local definers = fonts.definers +local function mk_rml(name, size, id) + local specification = definers.analyze(name,size) + --specification = definers.resolve(specification) (not needed) + specification.detail = specification.detail or '' + do + local n = specification.name + if n:sub(1,1)=="{" then n=n:sub(2) end + if n:sub(-1)=="}" then n=n:sub(1,-2) end + specification.name=n + end + local fontdata = {} + local cachedata = {} + local s = cidfont_data[cid_name] + luatexja.rmlgbm.vert_addfunc(id) + for k, v in pairs(s) do + fontdata[k] = v + cachedata[k] = v + end + fontdata.characters = nil + cachedata.characters = 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 + end + + -- characters & scaling + if size < 0 then size = -size * 655.36 end + local scale = size / 655360 + + do + local def_height = 0.88 * size + -- character's default height (optimized for jfm-ujis.lua) + local def_depth = 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 = 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] + end + + -- other parameters + do + local parameters = {} + for k, v in pairs(s.parameters) do + parameters[k] = v * scale + end + fontdata.parameters = parameters + fontdata.size = size + fontdata.resources = s.resources + cachedata.parameters = parameters + cachedata.size = size + cachedata.resources = s.resources + end + + -- no embedding + local var = '' + local s = string.match(specification.detail, 'slant=([+-]*%d*%.?%d)') + if s and e~=0 then + s = s * 1000 + var, fontdata.slant = var .. 's' .. tostring(s), s + end + local e = string.match(specification.detail, 'extend=([+-]*%d*%.?%d)') + if e and e~=1 then + e = e * 1000 + var, fontdata.extend = var .. 'x' .. tostring(e), e + 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 + identifiers[id] = cachedata + + return fontdata +end + +local function font_callback(name, size, id, fallback) + if name:sub(1,1)=="{" and name:sub(-1)=="}" then name = name:sub(2,-2) end + local p = name:find(":") or 0 + if name:sub(1, p-1) == 'psft' then + local s = "Adobe-Japan1-7" + local basename = name:sub(p+1) + local p = basename:find(":") + local q = basename:find("/[BI][BI]?") + if q and p and q<=p then + basename = basename:gsub('/[BI][BI]?', '', 1) + p = basename:find(":") + end + if p then + local xname = basename:sub(p+1) + p = 1 + while p do + local q = xname:find(";", p+1) or xname:len()+1 + if xname:sub(p, p+3)=='cid=' and q>p+4 then + s = xname:sub(p+4, q-1) + end + if xname:len()+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 + if not prepare_cid_font(cid_reg, cid_order) 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 + return mk_rml(basename, size, id) + else + local tfmdata=fallback(name, size, id) + if type (tfmdata) == "table" and tfmdata.shared then + luatexbase.call_callback("luaotfload.patch_font", tfmdata, name) + end + return tfmdata + end +end + +luatexja.rmlgbm = { + prepare_cid_font = prepare_cid_font, + cidfont_data = cidfont_data, + font_callback = font_callback, + vert_addfunc = function () end, -- dummy, set in ltj-direction.lua +} + +prepare_cid_font('Adobe', 'Japan1') |