--
luatexbase.provides_module({
name = 'luatexja.jfont',
- date = '2014/02/01',
+ 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 Dnode = node.direct or node
v.align = 'left' -- left
end
if real_char then
- print(i, v.width)
if type(v.width)~='number' and v.width~='prop' then
defjfm_res= nil; return
else
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
descent = ad.descender,
chars = sz.chars, char_type = sz.char_type,
kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
+ chars_cbcache = {},
}
fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
end
do
+ 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.attribute[attr_curjfnt]]
+ 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 get_zh()
- local a = font_metric_table[tex.attribute[attr_curjfnt]]
+ 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
end
if jfm_file_name~='' then
local l = name:sub(-1)
- name = name
+ name = name
.. ((l==':' or l==';') and '' or ';')
.. 'jfm=' .. jfm_file_name
if jfm_var~='' then
end
return name
end
- luatexja.jfont.extract_metric = extract_metric
+
+ -- 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
------------------------------------------------------------------------
alt_font_base_num = tex.getattribute(attr_curtfnt)
else
alt_font_base_num = tex.getattribute(attr_curjfnt)
- end
+ end
local t = alt_font_table[alt_font_base_num]
if t then
for i,_ in pairs(t) do t[i]=nil end
end
-
------------------------------------------------------------------------
--- MISC
+-- 追加のフォント情報
------------------------------------------------------------------------
+font_extra_info = {}
+local font_extra_info = font_extra_info -- key: fontnumber
+
+-- IVS and vertical metrics
+local prepare_fl_data
+do
+ local ivs -- temp table
+ local sort = table.sort
+ local function add_fl_table(dest, tg, unitable, glyphmax)
+ for i = 0, glyphmax-1 do
+ if tg[i] then
+ local gv = tg[i]
+ if gv.altuni then
+ for _,at in pairs(gv.altuni) do
+ local bu, vsel = at.unicode, at.variant
+ if vsel then
+ if vsel>=0xE0100 then vsel = vsel - 0xE0100 end
+ dest = dest or {}; dest[bu] = dest[bu] or {}
+ local uniq_flag = true
+ for i,_ in pairs(dest[bu]) do
+ if i==vs then uniq_flag = false; break end
+ end
+ if uniq_flag then
+ dest[bu][vsel] = unitable[gv.name]
+ end
+ end
+ end
+ end
+ end
+ end
+ return dest
+ end
+ prepare_fl_data = function (dest, id, fname)
+ local fl = fontloader.open(fname)
+ local unicodes = id.resources.unicodes
+ if fl.glyphs then
+ dest = add_fl_table(dest, fl.glyphs, id.resources.unicodes, fl.glyphmax)
+ end
+ if fl.subfonts then
+ for _,v in pairs(fl.subfonts) do
+ dest = add_fl_table(dest, v.glyphs, id.resources.unicodes, v.glyphmax)
+ end
+ end
+ fontloader.close(fl)
+ return dest
+ end
+end
+
+-- 縦書き用字形への変換テーブル
+local prepare_vert_data
+do
+ 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 then
+ if not dest then dest = {} end
+ if not dest[i] then dest[i] = {} end
+ dest[i].vert = dest[i].vert or s
+ end
+ end
+ end
+ return dest
+ end
+ prepare_vert_data = function (dest, id)
+ 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 or v.features.vrt2 then
+ dest= add_feature_table(v.subtables[1], s, dest)
+ end
+ end
+ end
+ return dest
+ end
+ -- 縦書き用字形への変換
+ function get_vert_glyph(n, chr)
+ local fn = font_extra_info[n]
+ return (fn and fn[chr] and fn[chr].vert) or chr
+ end
+end
-local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
--- 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)
+--
+do
+ local font_extra_basename = {} -- key: basename
+ local cache_ver = 2
+ local checksum = file.checksum
+
+ local function prepare_extra_data(n, id)
+ -- test if already loaded
+ if type(id)=='number' then -- sometimes id is an integer
+ return
+ elseif (not id) or font_extra_info[n] then return
+ end
+ local fname = id.filename
+ local bname = file.basename(fname)
+ if not fname then
+ font_extra_info[n] = {}; return
+ elseif font_extra_basename[bname] then
+ font_extra_info[n] = font_extra_basename[bname]; return
+ end
+ -- if the cache is present, read it
+ local newsum = checksum(fname) -- MD5 checksum of the fontfile
+ local v = "extra_" .. string.lower(file.nameonly(fname))
+ local dat = ltjb.load_cache(v,
+ function (t) return (t.version~=cache_ver) or (t.chksum~=newsum) end
+ )
+ -- if the cache is not found or outdated, save the cache
+ if dat then
+ font_extra_basename[bname] = dat[1] or {}
else
- local h = font_getfont(f)
- if h then
- setfield(g, 'kern', h.characters[getchar(p)].italic)
+ local dat = nil
+ dat = prepare_vert_data(dat, id)
+ dat = prepare_fl_data(dat, id, fname)
+ font_extra_basename[bname] = dat or {}
+ ltjb.save_cache( v,
+ {
+ chksum = checksum(fname),
+ version = cache_ver,
+ dat,
+ })
+ end
+ font_extra_info[n] = font_extra_basename[bname]
+ end
+ luatexbase.add_to_callback('luatexja.define_font',
+ function (res, name, size, id)
+ prepare_extra_data(id, res)
+ end,
+ 'ltj.prepare_extra_data', 1)
+
+ local function a (n, dat) font_extra_info[n] = dat end
+ ltjr.vert_addfunc = a
+
+ local identifiers = fonts.hashes.identifiers
+ for i=1,font.nextid()-1 do
+ if identifiers[i] then prepare_extra_data(i, identifiers[i]) end
+ end
+end
+
+------------------------------------------------------------------------
+-- MISC
+------------------------------------------------------------------------
+do
+ local get_dir_count = ltjd.get_dir_count
+ 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, (get_dir_count()==dir_tate) and attr_curtfnt or 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] = 0
- 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] = 0
end
end
+
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