X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=src%2Fltj-otf.lua;h=d13cff277b44c519f0580d18cd867a268a23feb6;hb=ab23049deb6fb90ca689fdf4924b3783f08f8f2e;hp=bc41a9062ddc0c99d01c86f8d530c894da11753a;hpb=269336dfc077d8e723740db67a5d6f5254a59497;p=luatex-ja%2Fluatexja.git diff --git a/src/ltj-otf.lua b/src/ltj-otf.lua index bc41a90..d13cff2 100644 --- a/src/ltj-otf.lua +++ b/src/ltj-otf.lua @@ -1,45 +1,62 @@ -- --- 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 -local OTF = luatexja.userid_table.OTF +luatexja.userid_table.OTF = luatexbase.newuserwhatsitid('char_by_cid', 'luatexja') +luatexja.userid_table.VSR = luatexbase.newuserwhatsitid('replace_vs', 'luatexja') +local OTF, VSR = luatexja.userid_table.OTF, luatexja.userid_table.VSR local function get_ucs_from_rmlgbm(c) local v = ltjr_cidfont_data["Adobe-Japan1"].resources.unicodes["Japan1." .. tostring(c)] @@ -53,7 +70,7 @@ local function get_ucs_from_rmlgbm(c) local i = string.len(w) if i==4 then -- UCS2 return tonumber(w,16) - elseif i==8 then + 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) @@ -68,73 +85,79 @@ 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 + local tex_get_attr = tex.getattribute + cid = function (key) + if key==0 then return append_jglyph(char) end + local curjfnt = identifiers[tex_get_attr((ltjd_get_dir_count()==dir_tate) + and attr_curtfnt or 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 + 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 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． @@ -145,20 +168,20 @@ luatexbase.add_to_callback('pre_linebreak_filter', local function cid_to_char(fmtable, fn) local fi = identifiers[fn] if fi.cidinfo and fi.cidinfo.ordering == "Japan1" then - fmtable.cid_char_type = {} 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)]) 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 @@ -173,54 +196,94 @@ local function cid_set_char_class(arg, fmtable, char) 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 enable_ivs, disable_ivs do - local get_node_font = function(p) - return (ltjc_is_ucs_in_japanese_char(p) and (has_attr(p, attr_curjfnt) or 0) or p.font) + local is_ivs_enabled = false +-- 組版時 + local function ivs_jglyph(char, bp, pf, uid) + local p = node_new(id_whatsit,sid_user) + setfield(p, 'user_id', uid) + setfield(p, 'type', 100) + setfield(p, 'value', char) + return p end - local get_current_font = function() return tex.attribute[attr_curjfnt] or 0 end - local function do_ivs_repr(head) - local p = head + + local function do_ivs_repr(h) + local head = to_direct(h) + local p, r = head + 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 - local pid = p.id + local pid = getid(p) if pid==id_glyph then - local pf = get_node_font(p) - local pt = identifiers[pf] - pt = pt and pt.resources; pt = pt and pt.variants - if pt then - 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[qc]; pt = pt and pt[p.char] - if pt then - p.char = pt or p.char - end - head = node_remove(head,q) + local q = node_next(p) -- the next node of p + if q and getid(q)==id_glyph then + local qc = getchar(q) + if (qc>=0xFE00 and qc<=0xFE0F) or (qc>=0xE0100 and qc<0xE01F0) then + -- q is a variation selector + if qc>=0xE0100 then qc = qc - 0xE0100 end + local pf = getfont(p) + local pt = ltjf_font_extra_info[pf] + pt = pt and pt[getchar(p)]; pt = pt and pt[qc] + head, r = node_remove(head,q) + node_free(q) + if pt then + local is_jachar = (getfield(p, 'lang')==lang_ja) + local np = ivs_jglyph(pt, p, pf, + is_jachar and OTF or VSR) + if is_jachar then + set_attr(np, attr_curfnt, pf) + set_attr(np, attr_kblshift, has_attr(p, attr_kblshift)) + end + head = node_insert_after(head, p, np) + head = node_remove(head,p) + node_free(p) end - end - end - end - p = node_next(p) + p = r + else + p = q + end + else + p = node_next(p) + end + else + p = node_next(p) + end + end + return to_node(head) + end + + enable_ivs = function () + if is_ivs_enabled then + ltjb.package_warning('luatexja-otf', + 'luatexja.otf.enable_ivs() was already called, so this call is ignored', '') + else + ltjb.add_to_callback('hpack_filter', do_ivs_repr, 'ltj.do_ivs', + luatexbase.priority_in_callback('hpack_filter', 'luaotfload.node_processor')) + ltjb.add_to_callback('pre_linebreak_filter', do_ivs_repr, 'ltj.do_ivs', + luatexbase.priority_in_callback('pre_linebreak_filter', 'luaotfload.node_processor')) + is_ivs_enabled = true end - return head end - function enable_ivs() - 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) + disable_ivs = function () + if is_ivs_enabled then + luatexbase.remove_from_callback('hpack_filter', 'ltj.do_ivs') + luatexbase.remove_from_callback('pre_linebreak_filter', 'ltj.do_ivs') + is_ivs_enabled = false + end end - end --------------------- all done luatexja.otf = { append_jglyph = append_jglyph, - enable_ivs = enable_ivs, -- 隠し機能: IVS（TTF しか現状では使えない） + enable_ivs = enable_ivs, -- 隠し機能: IVS + disable_ivs = disable_ivs, -- 隠し機能: IVS cid = cid, }