--
--- luatexja/otf.lua
+-- luatexja/ltj-otf.lua
--
-luatexbase.provides_module({
- name = 'luatexja.otf',
- date = '2013/05/11',
- description = 'The OTF Lua module for LuaTeX-ja',
-})
-
require('unicode')
require('lualibs')
-
luatexja.load_module('base'); local ltjb = luatexja.base
luatexja.load_module('jfont'); local ltjf = luatexja.jfont
luatexja.load_module('rmlgbm'); local ltjr = luatexja.rmlgbm
luatexja.load_module('charrange'); local ltjc = luatexja.charrange
+luatexja.load_module('direction'); local ltjd = luatexja.direction
+luatexja.load_module('stack'); local ltjs = luatexja.stack
local id_glyph = node.id('glyph')
local id_whatsit = node.id('whatsit')
local sid_user = node.subtype('user_defined')
-local node_new = node.new
-local node_remove = node.remove
-local node_next = node.next
-local node_free = node.free
-local has_attr = node.has_attribute
-local set_attr = node.set_attribute
-local unset_attr = node.unset_attribute
-local node_insert_after = node.insert_after
-local identifiers = fonts.hashes.identifiers
+local setfield = node.direct.setfield
+local getfield = node.direct.getfield
+local getid = node.direct.getid
+local getfont = node.direct.getfont
+local getchar = node.direct.getchar
+local getsubtype = node.direct.getsubtype
+
+local to_node = node.direct.tonode
+local to_direct = node.direct.todirect
+
+local node_new = node.direct.new
+local node_remove = node.direct.remove
+local node_next = node.direct.getnext
+local node_free = node.direct.free
+local has_attr = node.direct.has_attribute
+local set_attr = node.direct.set_attribute
+local unset_attr = node.direct.unset_attribute
+local node_insert_after = node.direct.insert_after
+local node_write = node.direct.write
+local node_traverse_id = node.direct.traverse_id
+
local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
-local attr_jchar_class = luatexbase.attributes['ltj@charclass']
+local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
local attr_yablshift = luatexbase.attributes['ltj@yablshift']
local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
+local attr_tablshift = luatexbase.attributes['ltj@tablshift']
+local attr_tkblshift = luatexbase.attributes['ltj@tkblshift']
+local lang_ja = luatexja.lang_ja
+local identifiers = fonts.hashes.identifiers
local ltjf_font_metric_table = ltjf.font_metric_table
+local ltjf_font_extra_info = ltjf.font_extra_info
local ltjf_find_char_class = ltjf.find_char_class
local ltjr_cidfont_data = ltjr.cidfont_data
local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
+local ltjd_get_dir_count = ltjd.get_dir_count
+local dir_tate = luatexja.dir_table.dir_tate
+luatexja.userid_table.OTF = luatexbase.newuserwhatsitid('char_by_cid', 'luatexja')
local OTF = luatexja.userid_table.OTF
+local tex_get_attr = tex.getattribute
+
+local cache_var = 2
+local cache_outdate_fn = function (t) return t.version~=cache_ver end
+local ivd_aj1 = ltjb.load_cache('ltj-ivd_aj1',cache_outdate_fn)
+if not ivd_aj1 then -- make cache
+ ivd_aj1 = require('ltj-ivd_aj1.lua')
+ ltjb.save_cache_luc('ltj-ivd_aj1', ivd_aj1)
+end
+
local function get_ucs_from_rmlgbm(c)
- local v = ltjr_cidfont_data["Adobe-Japan1"].resources.unicodes["Japan1." .. tostring(c)]
- if not v then -- AJ1 範囲外
- return 0
+ local v = (ivd_aj1 and ivd_aj1.table_ivd_aj1[c]
+ or ltjr_cidfont_data["Adobe-Japan1"].resources.unicodes["Japan1." .. tostring(c)])
+ or 0
+ if v>=0x200000 then -- table
+ local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
+ and attr_curtfnt or attr_curjfnt)
+ local curjfnt = identifiers[curjfnt_num].resources
+ local base, ivs = v % 0x200000, 0xE00FF + math.floor(v/0x200000)
+ curjfnt = curjfnt and curjfnt.variants
+ curjfnt = curjfnt and curjfnt[ivs]
+ return curjfnt and curjfnt[base] or base
elseif v<0xF0000 then -- 素直に Unicode にマップ可能
return v
- else
+ else -- privete use area
local w = ltjr_cidfont_data["Adobe-Japan1"].characters[v]. tounicode
-- must be non-nil!
local i = string.len(w)
+ local r
if i==4 then -- UCS2
- return tonumber(w,16)
- elseif i==8 then
+ r = tonumber(w,16)
+ elseif i==8 then
i,w = tonumber(string.sub(w,1,4),16), tonumber(string.sub(w,-4),16)
if (w>=0xD800) and (w<=0xDB7F) and (i>=0xDC00) and (i<=0xDFFF) then -- Surrogate pair
- return (w-0xD800)*0x400 + (i-0xDC00)
+ r = (w-0xD800)*0x400 + (i-0xDC00)
else
- return 0
+ r = 0
+ end
+ end
+ if ltjr_cidfont_data["Adobe-Japan1"].shared.ltj_vert_table[r] then
+ -- CID が縦組用字形だった場合
+ local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
+ and attr_curtfnt or attr_curjfnt)
+ local t = identifiers[curjfnt_num]
+ if t.resources.sequences then
+ for _,i in pairs(t.resources.sequences) do
+ if (i.order[1]=='vert' or i.order[1]=='vrt2')
+ and i.type == 'gsub_single' and i.steps then
+ for _,j in pairs(i.steps) do
+ if type(j)=='table' then
+ if type(j.coverage)=='table' then
+ for i,k in pairs(j.coverage) do
+ if i==r then return k end
+ end
+ end
+ end
+ end
+ end
+ end
end
end
+ return r
end
end
-- This whatsit node will be extracted to a glyph_node
local function append_jglyph(char)
local p = node_new(id_whatsit,sid_user)
- local v = tex.attribute[attr_curjfnt]
- p.user_id=OTF; p.type=100; p.value=char
- set_attr(p, attr_yablshift, tex.attribute[attr_ykblshift])
- node.write(p)
+ setfield(p, 'user_id', OTF)
+ setfield(p, 'type', 100)
+ setfield(p, 'value', char)
+ node_write(p)
end
-local function cid(key)
- if key==0 then return append_jglyph(char) end
- local curjfnt = identifiers[tex.attribute[attr_curjfnt]]
- if not curjfnt.cidinfo or
- curjfnt.cidinfo.ordering ~= "Japan1" and
- curjfnt.cidinfo.ordering ~= "GB1" and
- curjfnt.cidinfo.ordering ~= "CNS1" and
- curjfnt.cidinfo.ordering ~= "Korea1" then
--- ltjb.package_warning('luatexja-otf',
--- 'Current Japanese font (or other CJK font) "'
--- ..curjfnt.psname..'" is not a CID-Keyed font (Adobe-Japan1 etc.)')
- return append_jglyph(get_ucs_from_rmlgbm(key))
- end
- local char = curjfnt.resources.unicodes[curjfnt.cidinfo.ordering..'.'..tostring(key)]
- if not char then
- ltjb.package_warning('luatexja-otf',
- 'Current Japanese font (or other CJK font) "'
- ..curjfnt.psname..'" does not have the specified CID character ('
- ..tostring(key)..')',
- 'Use a font including the specified CID character.')
- char = 0
+local cid
+do
+ cid = function (key)
+ if key==0 then return append_jglyph(char) end
+ local curjfnt_num = tex_get_attr((ltjd_get_dir_count()==dir_tate)
+ and attr_curtfnt or attr_curjfnt)
+ local curjfnt = identifiers[curjfnt_num]
+ local cidinfo = curjfnt.resources.cidinfo
+ if not cidinfo or
+ cidinfo.ordering ~= "Japan1" and
+ cidinfo.ordering ~= "GB1" and
+ cidinfo.ordering ~= "CNS1" and
+ cidinfo.ordering ~= "Korea1" and
+ cidinfo.ordering ~= "KR" then
+ -- ltjb.package_warning('luatexja-otf',
+ -- 'Current Japanese font (or other CJK font) "'
+ -- ..curjfnt.psname..'" is not a CID-Keyed font (Adobe-Japan1 etc.)')
+ return append_jglyph(get_ucs_from_rmlgbm(key))
+ end
+ local fe, char = ltjf_font_extra_info[curjfnt_num], nil
+ if fe and fe.unicodes then
+ char = fe.unicodes[cidinfo.ordering..'.'..tostring(key)]
+ end
+ if not char then
+ ltjb.package_warning('luatexja-otf',
+ 'Current Japanese font (or other CJK font) "'
+ ..curjfnt.psname..'" does not have the specified CID character ('
+ ..tostring(key)..')',
+ 'Use a font including the specified CID character.')
+ char = 0
+ end
+ return append_jglyph(char)
end
- return append_jglyph(char)
end
local function extract(head)
+ head = to_direct(head)
local p = head
- local v
+ local is_dir_tate = ltjs.list_dir == dir_tate
+ local attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift
+ local attr_kblshift = is_dir_tate and attr_tkblshift or attr_ykblshift
+ local attr_curfnt = is_dir_tate and attr_curtfnt or attr_curjfnt
while p do
- if p.id==id_whatsit then
- if p.subtype==sid_user and p.user_id==OTF then
- local g = node_new(id_glyph)
- g.subtype = 0; g.char = p.value
- v = has_attr(p, attr_curjfnt); g.font = v
- set_attr(g, attr_curjfnt, v)
- v = has_attr(p, attr_yablshift)
- if v then
- set_attr(g, attr_yablshift, v)
- else
- unset_attr(g, attr_yablshift)
- end
- head = node_insert_after(head, p, g)
- head = node_remove(head, p)
- node_free(p); p = g
- end
+ if getid(p)==id_whatsit then
+ if getsubtype(p)==sid_user then
+ local puid = getfield(p, 'user_id')
+ if puid==OTF then
+ --if puid==OTF or puid==VSR then
+ local g = node_new(id_glyph)
+ setfield(g, 'subtype', 0)
+ setfield(g, 'char', getfield(p, 'value'))
+ local v = has_attr(p, attr_curfnt); setfield(g, 'font',v)
+ --if puid==OTF then
+ setfield(g, 'lang', lang_ja)
+ set_attr(g, attr_kblshift, has_attr(p, attr_kblshift))
+ --else
+ -- set_attr(g, attr_ablshift, has_attr(p, attr_ablshift))
+ --end
+ head = node_insert_after(head, p, g)
+ head = node_remove(head, p)
+ node_free(p); p = g
+ end
+ end
end
p = node_next(p)
end
- return head
+ return to_node(head)
end
-luatexbase.add_to_callback('hpack_filter',
- function (head) return extract(head) end,'ltj.hpack_filter_otf',
- luatexbase.priority_in_callback('pre_linebreak_filter',
- 'ltj.pre_linebreak_filter'))
-luatexbase.add_to_callback('pre_linebreak_filter',
- function (head) return extract(head) end, 'ltj.pre_linebreak_filter_otf',
- luatexbase.priority_in_callback('pre_linebreak_filter',
- 'ltj.pre_linebreak_filter'))
-
-
+ltjb.add_to_callback('hpack_filter', extract,'ltj.otf',
+ luatexbase.priority_in_callback('hpack_filter', 'ltj.main'))
+ltjb.add_to_callback('pre_linebreak_filter', extract,'ltj.otf',
+ luatexbase.priority_in_callback('pre_linebreak_filter', 'ltj.main'))
-- additional callbacks
-- 以下は，LuaTeX-ja に用意された callback のサンプルになっている．
-- JFM の文字クラスの指定の所で，"AJ1-xxx" 形式での指定を可能とした．
-- 和文フォント読み込み時に，CID -> unicode 対応をとっておく．
local function cid_to_char(fmtable, fn)
local fi = identifiers[fn]
- if fi.cidinfo and fi.cidinfo.ordering == "Japan1" then
- fmtable.cid_char_type = {}
+ local fe = ltjf_font_extra_info[fn]
+ if (fi.resources and fi.resources.cidinfo and fi.resources.cidinfo.ordering == "Japan1" )
+ and (fe and fe.unicodes) then
for i, v in pairs(fmtable.chars) do
local j = string.match(i, "^AJ1%-([0-9]*)")
if j then
- j = tonumber(fi.resources.unicodes['Japan1.'..tostring(j)])
+ j = tonumber(fe.unicodes['Japan1.'..tostring(j)])
if j then
- fmtable.cid_char_type[j] = v
+ fmtable.cid_char_type = fmtable.cid_char_type or {}
+ fmtable.cid_char_type[j] = v
end
end
end
end
return fmtable
end
-luatexbase.add_to_callback("luatexja.define_jfont",
+luatexbase.add_to_callback("luatexja.define_jfont",
cid_to_char, "ltj.otf.define_jfont", 1)
-- 既に読み込まれているフォントに対しても，同じことをやらないといけない
for fn, v in pairs(ltjf_font_metric_table) do
else return 0
end
end
-luatexbase.add_to_callback("luatexja.find_char_class",
+luatexbase.add_to_callback("luatexja.find_char_class",
cid_set_char_class, "ltj.otf.find_char_class", 1)
--------------------- IVS
-local font_ivs_table = {} -- key: fontnumber
-local enable_ivs
-do
- local sort = table.sort
- local uniq_flag
- local function add_ivs_table(tg, unitable)
- for gu, gv in pairs(tg) do
- local ga = gv.altuni
- if ga then
- for _,at in pairs(ga) do
- local bu, vs = at.unicode, (at.variant or 0)-0xE0100
- if vs>=0 and vs<0xF0 then
- if not ivs[bu] then ivs[bu] = {} end
- uniq_flag = true
- for i,_ in pairs(ivs[bu]) do
- if i==vs then uniq_flag = false; break end
- end
- if uniq_flag then
- ivs[bu][vs] = unitable[gv.name]
- end
- end
- end
- end
- end
- end
- local function make_ivs_table(id, fname)
- ivs = {}
- local fl = fontloader.open(fname)
- local ft = fontloader.to_table(fl)
- local unicodes = id.resources.unicodes
- add_ivs_table(ft.glyphs, id.resources.unicodes)
- if ft.subfonts then
- for _,v in pairs(ft.subfonts) do
- add_ivs_table(v.glyphs, id.resources.unicodes)
- end
- end
- fontloader.close(fl)
- return ivs
- end
-
--- loading and saving
- local font_ivs_basename = {} -- key: basename
- local path = {
- localdir = kpse.expand_var("$TEXMFVAR"),
- systemdir = kpse.expand_var("$TEXMFSYSVAR"),
- }
- local cache_dir = '/luatexja'
- local checksum = file.checksum
-
- local function ivs_cache_save(id, fname)
- local savepath = path.localdir .. cache_dir
- if not lfs.isdir(savepath) then dir.mkdirs(savepath) end
- savepath = file.join(savepath, "ivs_" .. string.lower(file.nameonly(fname)) .. ".lua")
- local result = make_ivs_table(id, fname)
- if file.iswritable(savepath) then
- table.tofile(savepath, { checksum(fname), result },
- 'return', false, true, false )
- --ltjb.package_info_no_line('luatexja', "saved :'" .. savepath .. "'", '')
- print("saved :'" .. savepath .. "'", '')
- else
- --ltjb.package_warning_no_line('luatexja', "failed to save to '" .. savepath .. "'", '')
- print("failed to save to '" .. savepath .. "'", '')
- end
- return result
- end
-
- local function ivs_cache_load(cname, id, fname)
- local result = require(cname)
- local newsum = checksum(fname)
- if newsum~=result[1] then
- return ivs_cache_save(id, fname)
- else
- return result[2]
- end
- end
-
- local function prepare_ivs_data(n, id)
- -- test if already loaded
- if type(id)=='number' then
- font_ivs_table[n] = font_ivs_table[id]; return
- end
- local fname = id.filename
- local bname = file.basename(fname)
- if not fname then
- font_ivs_table[n] = {}; return
- elseif font_ivs_basename[bname] then
- font_ivs_table[n] = font_ivs_basename[bname]; return
- end
-
- -- if cache is present; read them
- local v = "ivs_" .. string.lower(file.nameonly(fname)) .. ".lua"
- local localpath = file.join(path.localdir, cache_dir, v)
- local systempath = file.join(path.systemdir, cache_dir , v)
- local kpsefound = kpse.find_file(v)
- if kpsefound and file.isreadable(kpsefound) then
- font_ivs_basename[bname] = ivs_cache_load(kpsefound, id, fname)
- elseif file.isreadable(localpath) then
- font_ivs_basename[bname] = ivs_cache_load(localpath, id, fname)
- elseif file.isreadable(systempath) then
- font_ivs_basename[bname] = ivs_cache_load(systempath, id, fname)
- else
- font_ivs_basename[bname] = ivs_cache_save(id, fname)
- end
- if not font_ivs_basename[bname] then font_ivs_basename[bname] = {} end
- font_ivs_table[n] = font_ivs_basename[bname]
- end
- local ivs = {}
- ivs.font_ivs_table = font_ivs_table
- luatexja.ivs = ivs
-
--- 組版時
- local function ivs_jglyph(char, bp, pf)
- local p = node_new(id_whatsit,sid_user)
- p.user_id=OTF; p.type=100; p.value=char
- set_attr(p, attr_curjfnt, pf)
- set_attr(p, attr_yablshift, has_attr(bp, attr_ykblshift) or 0)
- return p
- end
-
- local function do_ivs_repr(head)
- local p = head
- while p do
- local pid = p.id
- if pid==id_glyph then
- local pf = p.font
- if (has_attr(p, attr_curjfnt) or 0) == pf then
- -- only works with JAchars
- local pt = font_ivs_table[pf]
- local q = node_next(p) -- the next node of p
- if q and q.id==id_glyph then
- local qc = q.char
- if qc>=0xE0100 and qc<0xE01F0 then -- q is an IVS selector
- pt = pt and pt[p.char]; pt = pt and pt[qc-0xE0100]
- head = node_remove(head,q)
- if pt then
- local np = ivs_jglyph(pt, p, pf)
- head = node_insert_after(head, p, np)
- head = node_remove(head,p)
- p = np
- end
- end
- end
- end
- end
- p = node_next(p)
- end
- return head
- end
-
- -- font define
- local function font_callback(name, size, id, fallback)
- local d = fallback(name, size, id)
- prepare_ivs_data(id, d)
- return d
- end
-
- enable_ivs = function ()
- luatexbase.add_to_callback('hpack_filter',
- function (head) return do_ivs_repr(head) end,'do_ivs', 1)
- luatexbase.add_to_callback('pre_linebreak_filter',
- function (head) return do_ivs_repr(head) end, 'do_ivs', 1)
- local ivs_callback = function (name, size, id)
- return font_callback(
- name, size, id,
- function (name, size, id) return luatexja.font_callback(name, size, id) end
- )
- end
- luatexbase.add_to_callback('define_font',ivs_callback,"luatexja.ivs_font_callback", 1)
- for i=1,font.nextid()-1 do
- if identifiers[i] then prepare_ivs_data(i, identifiers[i]) end
- end
- end
+--IVS
+local function enable_ivs()
+ ltjb.package_warning('luatexja-otf',
+ 'luatexja.otf.enable_ivs() has now no effect.')
end
+local disable_ivs = enable_ivs
--------------------- all done
luatexja.otf = {
append_jglyph = append_jglyph,
enable_ivs = enable_ivs, -- 隠し機能: IVS
- font_ivs_table = font_ivs_table,
+ disable_ivs = disable_ivs, -- 隠し機能: IVS
cid = cid,
}
+
-- EOF
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