X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=src%2Fltj-jfont.lua;h=0669b83557453aca128a146350c19e9bb931345e;hb=56a41515e4287965bd9d3bde0234f8cbd076250a;hp=0e2673400b59a3919067302d5bca813880598620;hpb=1e613b6753484098195998e8777888f59ac5858a;p=luatex-ja%2Fluatexja.git diff --git a/src/ltj-jfont.lua b/src/ltj-jfont.lua index 0e26734..0669b83 100644 --- a/src/ltj-jfont.lua +++ b/src/ltj-jfont.lua @@ -3,22 +3,38 @@ -- luatexbase.provides_module({ name = 'luatexja.jfont', - date = '2014/01/02', + date = '2014/10/03', description = 'Loader for Japanese fonts', }) module('luatexja.jfont', package.seeall) luatexja.load_module('base'); local ltjb = luatexja.base luatexja.load_module('charrange'); local ltjc = luatexja.charrange +luatexja.load_module('rmlgbm'); local ltjr = luatexja.rmlgbm +luatexja.load_module('direction'); local ltjd = luatexja.direction -local node_new = node.new -local has_attr = node.has_attribute -local set_attr = node.set_attribute + +local Dnode = node.direct or node + +local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end +local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end +local getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end +local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end + +local nullfunc = function(n) return n end +local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc + +local node_new = Dnode.new +local node_free = Dnode.free +local has_attr = Dnode.has_attribute +local set_attr = Dnode.set_attribute +local node_write = Dnode.write local round = tex.round -local getfont = font.getfont +local font_getfont = font.getfont local attr_icflag = luatexbase.attributes['ltj@icflag'] local attr_curjfnt = luatexbase.attributes['ltj@curjfnt'] +local attr_curtfnt = luatexbase.attributes['ltj@curtfnt'] local id_glyph = node.id('glyph') local id_kern = node.id('kern') local id_glue_spec = node.id('glue_spec') @@ -38,12 +54,13 @@ luatexbase.create_callback("luatexja.load_jfm", "data", function (ft, jn) return local jfm_file_name, jfm_var local defjfm_res +local jfm_dir function define_jfm(t) local real_char -- Does current character class have the 'real' character? - if t.dir~='yoko' then + if t.dir~=jfm_dir then defjfm_res= nil; return - elseif type(t.zw)~='number' or type(t.zh)~='number' then + elseif type(t.zw)~='number' or type(t.zh)~='number' then defjfm_res= nil; return end t.char_type = {}; t.chars = {} @@ -55,61 +72,61 @@ function define_jfm(t) else real_char = false for j,w in pairs(v.chars) do - if w == 'lineend' then - if #v.chars ~= 1 then defjfm_res= nil; return end - elseif type(w) == 'number' then + if type(w) == 'number' and w~=-1 then real_char = true; elseif type(w) == 'string' and utf.len(w)==1 then real_char = true; w = utf.byte(w) elseif type(w) == 'string' and utf.len(w)==2 and utf.sub(w,2) == '*' then real_char = true; w = utf.byte(utf.sub(w,1,1)) - if not t.chars[-w] then + if not t.chars[-w] then t.chars[-w] = i - else + else defjfm_res= nil; return end end if not t.chars[w] then t.chars[w] = i - else + else defjfm_res= nil; return end end - if type(v.align)~='string' then + if type(v.align)~='string' then v.align = 'left' -- left end if real_char then - if not (type(v.width)=='number' or v.width~='prop') then + if type(v.width)~='number' and v.width~='prop' then defjfm_res= nil; return else + if v.width=='prop' and jfm_dir=='tate' then + v.width = 1.0 + end if type(v.height)~='number' then v.height = 0.0 end if type(v.depth)~='number' then v.depth = 0.0 end - if type(v.italic)~='number' then + if type(v.italic)~='number' then v.italic = 0.0 end - if type(v.left)~='number' then + if type(v.left)~='number' then v.left = 0.0 end - if type(v.down)~='number' then + if type(v.down)~='number' then v.down = 0.0 end end end v.chars = nil end - if not v.kern then v.kern = {} end - if not v.glue then v.glue = {} end + v.kern = v.kern or {}; v.glue = v.glue or {} for j in pairs(v.glue) do if v.kern[j] then defjfm_res= nil; return end end for j,x in pairs(v.kern) do - if type(x)=='number' then + if type(x)=='number' then v.kern[j] = {x, 0} - elseif type(x)=='table' then + elseif type(x)=='table' then v.kern[j] = {x[1], x[2] or 0} end end @@ -122,6 +139,7 @@ function define_jfm(t) defjfm_res = t end +local update_jfm_cache do local function mult_table(old,scale) -- modified from table.fastcopy if old then @@ -138,27 +156,35 @@ do return new else return nil end end - - function update_jfm_cache(j,sz) + + update_jfm_cache = function (j,sz) if metrics[j].size_cache[sz] then return end local t = {} metrics[j].size_cache[sz] = t t.chars = metrics[j].chars t.char_type = mult_table(metrics[j].char_type, sz) for i,v in pairs(t.char_type) do + v.align = (v.align=='left') and 0 or + ((v.align=='right') and 1 or 0.5) if type(i) == 'number' then -- char_type for k,w in pairs(v.glue) do - local g, h = node.new(id_glue), node_new(id_glue_spec) - v.glue[k] = {g, (w[5] and w[5]/sz or 0)} - h.width, h.stretch, h.shrink = w[1], w[2], w[3] - h.stretch_order, h.shrink_order = 0, 0 - g.subtype = 0; g.spec = h; set_attr(g, attr_icflag, FROM_JFM + - (w[4] and w[4]/sz or 0)); + local h = node_new(id_glue_spec) + v[k] = {true, h, (w[5] and w[5]/sz or 0), FROM_JFM + (w[4] and w[4]/sz or 0)} + setfield(h, 'width', w[1]) + setfield(h, 'stretch', w[2]) + setfield(h, 'shrink', w[3]) + setfield(h, 'stretch_order', 0) + setfield(h, 'shrink_order', 0) end for k,w in pairs(v.kern) do - w[2] = w[2]/sz + local g = node_new(id_kern) + setfield(g, 'kern', w[1]) + setfield(g, 'subtype', 1) + set_attr(g, attr_icflag, FROM_JFM) + v[k] = {false, g, w[2]/sz} end end + v.glue, v.kern = nil, nil end t.kanjiskip = mult_table(metrics[j].kanjiskip, sz) t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz) @@ -166,17 +192,30 @@ do t.zh = round(metrics[j].zh*sz) end end -local update_jfm_cache = update_jfm_cache -luatexbase.create_callback("luatexja.find_char_class", "data", + +luatexbase.create_callback("luatexja.find_char_class", "data", function (arg, fmtable, char) return 0 end) - -function find_char_class(c,m) --- c: character code, m: - if not m then return 0 end - return m.chars[c] or - luatexbase.call_callback("luatexja.find_char_class", 0, m, c) +do + local start_time_measure = ltjb.start_time_measure + local stop_time_measure = ltjb.stop_time_measure + local fcc_temp = { chars_cbcache = {} } + setmetatable( + fcc_temp.chars_cbcache, + { + __index = function () return 0 end, + }) + function find_char_class(c,m) + -- c: character code, m: + local r = (m or fcc_temp).chars_cbcache[c] + if not r then + r = m.chars[c] or + luatexbase.call_callback("luatexja.find_char_class", 0, m, c) + m.chars_cbcache[c or 0] = r + end + return r + end end @@ -186,15 +225,16 @@ end do local cstemp + local global_flag -- true if \globaljfont, false if \jfont local function load_jfont_metric() - if jfm_file_name=='' then + if jfm_file_name=='' then ltjb.package_error('luatexja', 'no JFM specified', 'To load and define a Japanese font, a JFM must be specified.'.. "The JFM 'ujis' will be used for now.") jfm_file_name='ujis' end - for j,v in ipairs(metrics) do + for j,v in ipairs(metrics) do if v.name==jfm_file_name then return j end end luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua') @@ -202,7 +242,7 @@ do defjfm_res.name = jfm_file_name table.insert(metrics, defjfm_res) return #metrics - else + else return nil end end @@ -211,91 +251,175 @@ do function jfontdefX(g) local t = token.get_next() cstemp=token.csname_name(t) - if g then luatexja.is_global = '\\global' else luatexja.is_global = '' end - tex.sprint(cat_lp, '\\expandafter\\font\\csname ' .. cstemp .. '\\endcsname') + global_flag = g and '\\global' or '' + tex.sprint(cat_lp, '\\expandafter\\font\\csname ', cstemp, '\\endcsname') end - + luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end) -- EXT - function jfontdefY() -- for horizontal font - local j = load_jfont_metric() + local identifiers = fonts.hashes.identifiers + function jfontdefY(dir) + jfm_dir = dir + local j = load_jfont_metric(dir) local fn = font.id(cstemp) - local f = getfont(fn) - if not j then + local f = font_getfont(fn) + if not j then ltjb.package_error('luatexja', "bad JFM `" .. jfm_file_name .. "'", 'The JFM file you specified is not valid JFM file.\n'.. 'So defining Japanese font is cancelled.') - tex.sprint(cat_lp, luatexja.is_global .. '\\expandafter\\let\\csname ' ..cstemp - .. '\\endcsname=\\relax') - return + tex.sprint(cat_lp, global_flag, '\\expandafter\\let\\csname ', cstemp, + '\\endcsname=\\relax') + return end update_jfm_cache(j, f.size) + local ad = identifiers[fn].parameters local sz = metrics[j].size_cache[f.size] - local fmtable = { jfm = j, size = f.size, var = jfm_var, - zw = sz.zw, zh = sz.zh, + local fmtable = { jfm = j, size = f.size, var = jfm_var, + zw = sz.zw, zh = sz.zh, + ascent = ad.ascender, + descent = ad.descender, chars = sz.chars, char_type = sz.char_type, - kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip, + kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip, + chars_cbcache = {}, } - + fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn) font_metric_table[fn]=fmtable - tex.sprint(cat_lp, luatexja.is_global .. '\\protected\\expandafter\\def\\csname ' - .. cstemp .. '\\endcsname{\\ltj@curjfnt=' .. fn .. '\\relax}') + tex.sprint(cat_lp, global_flag, '\\protected\\expandafter\\def\\csname ', + cstemp , '\\endcsname{\\ltj@cur'.. + (dir == 'yoko' and 'j' or 't') .. 'fnt', fn, '\\relax}') end end do --- EXT: zw, zh - function load_zw() - local a = font_metric_table[tex.attribute[attr_curjfnt]] - tex.setdimen('ltj@zw', a and a.zw or 0) + local get_dir_count = ltjd.get_dir_count + local dir_tate = luatexja.dir_table.dir_tate + local tex_get_attr = tex.getattribute + -- PUBLIC function + function get_zw() + local a = font_metric_table[ + tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)] + return a and a.zw or 0 end - - function load_zh() - local a = font_metric_table[tex.attribute[attr_curjfnt]] - tex.setdimen('ltj@zh', a and a.zh or 0) + function get_zh() + local a = font_metric_table[ + tex_get_attr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt)] + return a and a.zw or 0 end end do -- extract jfm_file_name and jfm_var + -- normalize position of 'jfm=' and 'jfmvar=' keys local function extract_metric(name) - local basename=name - local tmp = utf.sub(basename, 1, 5) jfm_file_name = ''; jfm_var = '' + local tmp, index = name:sub(1, 5), 1 if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then - basename = utf.sub(basename, 6) + index = 6 end - local p = utf.find(basename, ":") - if p then - basename = utf.sub(basename, p+1) - else return + local p = name:find(":", index); index = p and (p+1) or index + while index do + local l = name:len()+1 + local q = name:find(";", index+1) or l + if name:sub(index, index+3)=='jfm=' and q>index+4 then + jfm_file_name = name:sub(index+4, q-1) + if l~=q then + name = name:sub(1,index-1) .. name:sub(q+1) + else + name = name:sub(1,index-1) + index = nil + end + elseif name:sub(index, index+6)=='jfmvar=' and q>index+6 then + jfm_var = name:sub(index+7, q-1) + if l~=q then + name = name:sub(1,index-1) .. name:sub(q+1) + else + name = name:sub(1,index-1) + index = nil + end + else + index = (l~=q) and (q+1) or nil + end end - -- now basename contains 'features' only. - p=1 - while p do - local q = utf.find(basename, ";", p+1) or utf.len(basename)+1 - if utf.sub(basename, p, p+3)=='jfm=' and q>p+4 then - jfm_file_name = utf.sub(basename, p+4, q-1) - elseif utf.sub(basename, p, p+6)=='jfmvar=' and q>p+6 then - jfm_var = utf.sub(basename, p+7, q-1) + if jfm_file_name~='' then + local l = name:sub(-1) + name = name + .. ((l==':' or l==';') and '' or ';') + .. 'jfm=' .. jfm_file_name + if jfm_var~='' then + name = name .. 'jfmvar=' .. jfm_var end - if utf.len(basename)+1==q then p = nil else p = q + 1 end end - return + return name end - - -- replace fonts.define.read() - function font_callback(name, size, id, fallback) - extract_metric(name) - -- In the present imple., we don't remove "jfm=..." from name. - return fallback(name, size, id) + + -- define_font callback + local otfl_fdr = fonts.definers.read + local ltjr_font_callback = ltjr.font_callback + function luatexja.font_callback(name, size, id) + local new_name = extract_metric(name) + local res = ltjr_font_callback(new_name, size, id, otfl_fdr) + luatexbase.call_callback('luatexja.define_font', res, new_name, size, id) + return res end + luatexbase.create_callback('luatexja.define_font', 'simple', function (n) return n end) + luatexbase.add_to_callback('define_font',luatexja.font_callback,"luatexja.font_callback", 1) end ------------------------------------------------------------------------ +-- LATEX INTERFACE +------------------------------------------------------------------------ +do + -- these function are called from ltj-latex.sty + local kyenc_list, ktenc_list = {}, {} + function add_kyenc_list(enc) kyenc_list[enc] = 'true ' end + function add_ktenc_list(enc) ktenc_list[enc] = 'true ' end + function is_kyenc(enc) + tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_list[enc] or 'false ')) + end + function is_ktenc(enc) + tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (ktenc_list[enc] or 'false ')) + end + function is_kenc(enc) + tex.sprint(cat_lp, '\\let\\ifin@\\if' + .. (kyenc_list[enc] or ktenc_list[enc] or 'false ')) + end + + local kfam_list, Nkfam_list = {}, {} + function add_kfam_list(enc, fam) + if not kfam_list[enc] then kfam_list[enc] = {} end + kfam_list[enc][fam] = 'true ' + end + function add_Nkfam_list(enc, fam) + if not Nkfam_list[enc] then Nkfam_list[enc] = {} end + Nkfam_list[enc][fam] = 'true ' + end + function is_kfam(enc, fam) + tex.sprint(cat_lp, '\\let\\ifin@\\if' + .. (kfam_list[enc] and kfam_list[enc][fam] or 'false ')) end + function is_Nkfam(enc, fam) + tex.sprint(cat_lp, '\\let\\ifin@\\if' + .. (Nkfam_list[enc] and Nkfam_list[enc][fam] or 'false ')) end + + local ffam_list, Nffam_list = {}, {} + function add_ffam_list(enc, fam) + if not ffam_list[enc] then ffam_list[enc] = {} end + ffam_list[enc][fam] = 'true ' + end + function add_Nffam_list(enc, fam) + if not Nffam_list[enc] then Nffam_list[enc] = {} end + Nffam_list[enc][fam] = 'true ' + end + function is_ffam(enc, fam) + tex.sprint(cat_lp, '\\let\\ifin@\\if' + .. (ffam_list[enc] and ffam_list[enc][fam] or 'false ')) end + function is_Nffam(enc, fam) + tex.sprint(cat_lp, '\\let\\ifin@\\if' + .. (Nffam_list[enc] and Nffam_list[enc][fam] or 'false ')) end +end +------------------------------------------------------------------------ -- ALTERNATE FONTS ------------------------------------------------------------------------ alt_font_table = {} @@ -309,7 +433,7 @@ function set_alt_font(b,e,ind,bfnt) -- ind: 新フォント, bfnt: 基底フォント if b>e then b, e = e, b end if b*e<=0 then - ltjb.package_eror('luatexja', + ltjb.package_error('luatexja', 'bad character range ([' .. b .. ',' .. e .. ']). ' .. 'I take the intersection with [0x80, 0x10ffff].') b, e = math.max(0x80,b),math.min(ucs_out-1,e) @@ -323,7 +447,7 @@ function set_alt_font(b,e,ind,bfnt) end if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end local t = alt_font_table[bfnt] - local ac = getfont(ind).characters + local ac = font_getfont(ind).characters if bfnt==ind then ind = nil end -- ind == bfnt の場合はテーブルから削除 if e>=0 then -- character range for i=b, e do @@ -340,7 +464,7 @@ end -- EXT function clear_alt_font(bfnt) - if alt_font_table[bfnt] then + if alt_font_table[bfnt] then local t = alt_font_table[bfnt] for i,_ in pairs(t) do t[i]=nil; end end @@ -348,8 +472,8 @@ end ------ used in ltjp.suppress_hyphenate_ja callback function replace_altfont(pf, pc) - return (alt_font_table[pf] and alt_font_table[pf][pc]) - and alt_font_table[pf][pc] or pf + local a = alt_font_table[pf] + return a and a[pc] or pf end ------ for LaTeX interface @@ -360,7 +484,7 @@ local alt_font_table_latex = {} function clear_alt_font_latex(bbase) local t = alt_font_table_latex[bbase] if t then - for j,v in pairs(t) do t[j] = nil end + for j,v in pairs(t) do t[j] = nil end end end @@ -369,7 +493,7 @@ function set_alt_font_latex(b,e,ind,bbase) -- ind: Alt font の enc/fam/ser/shape, bbase: 基底フォントの enc/fam/ser/shape if b>e then b, e = e, b end if b*e<=0 then - ltjb.package_eror('luatexja', + ltjb.package_error('luatexja', 'bad character range ([' .. b .. ',' .. e .. ']). ' .. 'I take the intersection with [0x80, 0x10ffff].') b, e = math.max(0x80,b),math.min(ucs_out-1,e) @@ -405,26 +529,34 @@ end -- ここから先は 新 \selectfont の内部でしか実行されない do local alt_font_base, alt_font_base_num - --- EXT - function print_aftl_address(bbase) - local t = alt_font_table_latex[bbase] - if not t then t = {}; alt_font_table_latex[bbase] = t end - tex.sprint(cat_lp, (tostring(t):gsub('table: 0x','ltjaltfont'))) + local aftl_base + -- EXT + function does_alt_set(bbase) + aftl_base = alt_font_table_latex[bbase] + tex.sprint(cat_lp, '\\if' .. (aftl_base and 'true' or 'false')) end + -- EXT + function print_aftl_address() + tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8)) + end + -- EXT - function output_alt_font_cmd(bbase) + function output_alt_font_cmd(dir, bbase) alt_font_base = bbase - alt_font_base_num = tex.getattribute(attr_curjfnt) + if dir == 't' then + alt_font_base_num = tex.getattribute(attr_curtfnt) + else + alt_font_base_num = tex.getattribute(attr_curjfnt) + end local t = alt_font_table[alt_font_base_num] - if t then - for i,_ in pairs(t) do t[i]=nil end + if t then + for i,_ in pairs(t) do t[i]=nil end end t = alt_font_table_latex[bbase] if t then - for i,_ in pairs(t) do - tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux{' .. i .. '}') - end + for i,_ in pairs(t) do + tex.sprint(cat_lp, '\\ltj@pickup@altfont@aux' .. dir .. '{' .. i .. '}') + end end end @@ -432,70 +564,133 @@ do function pickup_alt_font_a(size_str) local t = alt_font_table_latex[alt_font_base] if t then - for i,v in pairs(t) do - tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy' - .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}') - end + for i,v in pairs(t) do + tex.sprint(cat_lp, '\\expandafter\\ltj@pickup@altfont@copy' + .. '\\csname ' .. i .. '/' .. size_str .. '\\endcsname{' .. i .. '}') + end end end local function pickup_alt_font_class(class, afnt_num, afnt_chars) - local t = alt_font_table[alt_font_base_num] + local t = alt_font_table[alt_font_base_num] local tx = font_metric_table[alt_font_base_num].chars for i,v in pairs(tx) do - if v==class and afnt_chars[i] then t[i]=afnt_num end + if v==class and afnt_chars[i] then t[i]=afnt_num end end end -- EXT function pickup_alt_font_b(afnt_num, afnt_base) local t = alt_font_table[alt_font_base_num] - local ac = getfont(afnt_num).characters + local ac = font_getfont(afnt_num).characters if not t then t = {}; alt_font_table[alt_font_base_num] = t end for i,v in pairs(alt_font_table_latex[alt_font_base]) do - if i == afnt_base then - for j,_ in pairs(v) do - if j>=0 then - if ac[j] then t[j]=afnt_num end - else -- -n (n>=1) means that the character class n, - -- which is defined in the JFM - pickup_alt_font_class(-j, afnt_num, ac) - end + if i == afnt_base then + for j,_ in pairs(v) do + if j>=0 then + if ac[j] then t[j]=afnt_num end + else -- -n (n>=1) means that the character class n, + -- which is defined in the JFM + pickup_alt_font_class(-j, afnt_num, ac) + end + end + return + end + end + end + +end + + +------------------------------------------------------------------------ +-- 縦書き用字形への変換テーブル +------------------------------------------------------------------------ +local font_vert_table = {} -- key: fontnumber +do + local font_vert_basename = {} -- key: basename + local function add_feature_table(tname, src, dest) + for i,v in pairs(src) do + if type(v.slookups)=='table' then + local s = v.slookups[tname] + if s and not dest[i] then + dest[i] = s end - return end end end -end + local function prepare_vert_data(n, id) + -- test if already loaded + if type(id)=='number' then -- sometimes id is an integer + return + elseif (not id) or font_vert_table[n] then return + end + local fname = id.filename + local bname = file.basename(fname) + if not fname then + font_vert_table[n] = {}; return + elseif font_vert_basename[bname] then + font_vert_table[n] = font_vert_basename[bname]; return + end + local vtable = {} + local a = id.resources.sequences + if a then + local s = id.shared.rawdata.descriptions + for i,v in pairs(a) do + if v.features.vert then + add_feature_table(v.subtables[1], s, vtable) + end + end + end + font_vert_basename[bname] = vtable + font_vert_table[n] = vtable + end + -- 縦書き用字形への変換 + function get_vert_glyph(n, chr) + local fn = font_vert_table[n] + return fn and fn[chr] or chr + end + luatexbase.add_to_callback('luatexja.define_font', + function (res, name, size, id) + prepare_vert_data(id, res) + end, + 'prepare_vert_data', 1) + local function a (n, dat) font_vert_table[n] = dat end + ltjr.vert_addfunc = a + +end ------------------------------------------------------------------------ -- MISC ------------------------------------------------------------------------ - -local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char --- EXT: italic correction -function append_italic() - local p = tex.nest[tex.nest.ptr].tail - if p and p.id==id_glyph then - local f = p.font - local g = node_new(id_kern) - g.subtype = 1; node.set_attribute(g, attr_icflag, ITALIC) - if is_ucs_in_japanese_char(p) then - f = has_attr(p, attr_curjfnt) - local j = font_metric_table[f] - g.kern = j.char_type[find_char_class(p.char, j)].italic - else - local h = getfont(f) - if h then - g.kern = h.characters[p.char].italic +do + local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct + local tex_set_attr = tex.setattribute + local font = font + -- EXT: italic correction + function append_italic() + local p = to_direct(tex.nest[tex.nest.ptr].tail) + if p and getid(p)==id_glyph then + local f = getfont(p) + local g = node_new(id_kern) + setfield(g, 'subtype', 1) + set_attr(g, attr_icflag, ITALIC) + if is_ucs_in_japanese_char(p) then + f = has_attr(p, attr_curjfnt) + local j = font_metric_table[f] + setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic) else - tex.attribute[attr_icflag] = -(0x7FFFFFFF) - return node.free(g) + local h = font_getfont(f) or font.fonts[f] + if h then + setfield(g, 'kern', h.characters[getchar(p)].italic) + else + tex_set_attr(attr_icflag, 0) + return node_free(g) + end end + node_write(g) + tex_set_attr(attr_icflag, 0) end - node.write(g) - tex.attribute[attr_icflag] = -(0x7FFFFFFF) end end