--
luatexbase.provides_module({
name = 'luatexja.jfont',
- date = '2011/06/27',
- version = '0.1',
+ date = '2014/02/01',
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
-local node_new = node.new
-local has_attr = node.has_attribute
-local set_attr = node.set_attribute
+local mem_leak_glue, mem_leak_gs, mem_leak_kern = 0, 0, 0
+
+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 font_getfont = font.getfont
local attr_icflag = luatexbase.attributes['ltj@icflag']
local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
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' then
real_char = true;
elseif type(w) == 'string' and utf.len(w)==1 then
real_char = true; w = utf.byte(w)
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
defjfm_res = t
end
-local function mult_table(old,scale) -- modified from table.fastcopy
- if old then
- local new = { }
- for k,v in next, old do
- if type(v) == "table" then
- new[k] = mult_table(v,scale)
- elseif type(v) == "number" then
- new[k] = round(v*scale)
- else
- new[k] = v
- end
- end
- return new
- else return nil end
-end
-
-local function update_jfm_cache(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
- 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 update_jfm_cache
+do
+ local function mult_table(old,scale) -- modified from table.fastcopy
+ if old then
+ local new = { }
+ for k,v in next, old do
+ if type(v) == "table" then
+ new[k] = mult_table(v,scale)
+ elseif type(v) == "number" then
+ new[k] = round(v*scale)
+ else
+ new[k] = v
+ end
end
- for k,w in pairs(v.kern) do
- w[2] = w[2]/sz
+ return new
+ else return nil end
+ end
+
+ 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 h = node_new(id_glue_spec)
+mem_leak_gs = mem_leak_gs+1
+ 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
+ local g = node_new(id_kern)
+mem_leak_kern = mem_leak_kern +1
+ 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)
+ t.zw = round(metrics[j].zw*sz)
+ t.zh = round(metrics[j].zh*sz)
end
- t.kanjiskip = mult_table(metrics[j].kanjiskip, sz)
- t.xkanjiskip = mult_table(metrics[j].xkanjiskip,sz)
- t.zw = round(metrics[j].zw*sz)
- t.zh = round(metrics[j].zh*sz)
end
luatexbase.create_callback("luatexja.find_char_class", "data",
function find_char_class(c,m)
-- c: character code, m:
if not m then return 0 end
--- print("**")
--- for i,v in pairs(m) do print(i,v) end
return m.chars[c] or
luatexbase.call_callback("luatexja.find_char_class", 0, m, c)
end
-local function load_jfont_metric()
- 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'
+
+------------------------------------------------------------------------
+-- LOADING JAPANESE FONTS
+------------------------------------------------------------------------
+
+do
+ local cstemp
+ local global_flag -- true if \globaljfont, false if \jfont
+ local function load_jfont_metric()
+ 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
+ if v.name==jfm_file_name then return j end
+ end
+ luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
+ if defjfm_res then
+ defjfm_res.name = jfm_file_name
+ table.insert(metrics, defjfm_res)
+ return #metrics
+ else
+ return nil
+ end
end
- for j,v in ipairs(metrics) do
- if v.name==jfm_file_name then return j end
+
+-- EXT
+ function jfontdefX(g)
+ local t = token.get_next()
+ cstemp=token.csname_name(t)
+ global_flag = g and '\\global' or ''
+ tex.sprint(cat_lp, '\\expandafter\\font\\csname ' .. cstemp .. '\\endcsname')
end
- luatexja.load_lua('jfm-' .. jfm_file_name .. '.lua')
- if defjfm_res then
- defjfm_res.name = jfm_file_name
- table.insert(metrics, defjfm_res)
- return #metrics
- else
- return nil
+
+ 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 fn = font.id(cstemp)
+ 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, global_flag .. '\\expandafter\\let\\csname ' ..cstemp
+ .. '\\endcsname=\\relax')
+ return
+ end
+ update_jfm_cache(j, f.size)
+ --print('MEMORY LEAK (acc): ', mem_leak_glue, mem_leak_gs, mem_leak_kern)
+ local sz = metrics[j].size_cache[f.size]
+ local fmtable = { jfm = j, size = f.size, var = jfm_var,
+ zw = sz.zw, zh = sz.zh,
+ chars = sz.chars, char_type = sz.char_type,
+ kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
+ }
+
+ fmtable = luatexbase.call_callback("luatexja.define_jfont", fmtable, fn)
+ font_metric_table[fn]=fmtable
+ tex.sprint(cat_lp, global_flag .. '\\protected\\expandafter\\def\\csname '
+ .. cstemp .. '\\endcsname{\\ltj@curjfnt=' .. fn .. '\\relax}')
+ end
+end
+
+do
+ -- PUBLIC function
+ function get_zw()
+ local a = font_metric_table[tex.attribute[attr_curjfnt]]
+ return a and a.zw or 0
+ end
+ function get_zh()
+ local a = font_metric_table[tex.attribute[attr_curjfnt]]
+ return a and a.zw or 0
end
end
+do
+ -- extract jfm_file_name and jfm_var
+ local function extract_metric(name)
+ local basename=name
+ local tmp = utf.sub(basename, 1, 5)
+ jfm_file_name = ''; jfm_var = ''
+ if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
+ basename = utf.sub(basename, 6)
+ end
+ local p = utf.find(basename, ":")
+ if p then
+ basename = utf.sub(basename, p+1)
+ else return
+ 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)
+ end
+ if utf.len(basename)+1==q then p = nil else p = q + 1 end
+ end
+ return
+ 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)
+ end
+end
------------------------------------------------------------------------
--- LOADING JAPANESE FONTS
+-- LATEX INTERFACE
------------------------------------------------------------------------
-local cstemp
+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_kyenc(enc)
+ tex.sprint(cat_lp, '\\let\\ifin@\\if' .. (kyenc_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
--- EXT
-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')
+ 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 = {}
+local alt_font_table = alt_font_table
+local attr_curaltfnt = {}
+local ucs_out = 0x110000
-luatexbase.create_callback("luatexja.define_jfont", "data", function (ft, fn) return ft end)
+------ for TeX interface
+-- EXT
+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',
+ 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
+ 'I take the intersection with [0x80, 0x10ffff].')
+ b, e = math.max(0x80,b),math.min(ucs_out-1,e)
+ elseif e<0 then -- b<e<0
+ -- do nothing
+ elseif b<0x80 or e>=ucs_out then
+ ltjb.package_warning('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)
+ end
+ if not alt_font_table[bfnt] then alt_font_table[bfnt]={} end
+ local t = alt_font_table[bfnt]
+ 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
+ if ac[i]then t[i]=ind end
+ end
+ else
+ b, e = -e, -b
+ local tx = font_metric_table[bfnt].chars
+ for i,v in pairs(tx) do
+ if b<=v and v<=e and ac[i] then t[i]=ind end
+ end
+ end
+end
-- EXT
-function jfontdefY() -- for horizontal font
- local j = load_jfont_metric()
- local fn = font.id(cstemp)
- local f = font.fonts[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
+function clear_alt_font(bfnt)
+ if alt_font_table[bfnt] then
+ local t = alt_font_table[bfnt]
+ for i,_ in pairs(t) do t[i]=nil; end
end
- update_jfm_cache(j, f.size)
- local sz = metrics[j].size_cache[f.size]
- local fmtable = { jfm = j, size = f.size, var = jfm_var,
- zw = sz.zw, zh = sz.zh,
- chars = sz.chars, char_type = sz.char_type,
- kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
- mono_flag = not string.match((fonts.ids[fn].name or ''), "+[(pwid)(palt)]"),
- }
- 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}')
end
--- zw, zh
-function load_zw()
- local a = font_metric_table[tex.attribute[attr_curjfnt]]
- if a then
- tex.setdimen('ltj@zw', a.zw)
- else
- tex.setdimen('ltj@zw',0)
+------ used in ltjp.suppress_hyphenate_ja callback
+function replace_altfont(pf, pc)
+ local a = alt_font_table[pf]
+ return a and a[pc] or pf
+end
+
+------ for LaTeX interface
+
+local alt_font_table_latex = {}
+
+-- EXT
+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
end
end
-function load_zh()
- local a = font_metric_table[tex.attribute[attr_curjfnt]]
- if a then
- tex.setdimen('ltj@zh', a.zh)
- else
- tex.setdimen('ltj@zh',0)
+-- EXT
+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',
+ 'bad character range ([' .. b .. ',' .. e .. ']). ' ..
+ 'I take the intersection with [0x80, 0x10ffff].')
+ b, e = math.max(0x80,b),math.min(ucs_out-1,e)
+ elseif e<0 then -- b<e<0
+ -- do nothing
+ elseif b<0x80 or e>=ucs_out then
+ ltjb.package_warning('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)
+ end
+
+ if not alt_font_table_latex[bbase] then alt_font_table_latex[bbase]={} end
+ local t = alt_font_table_latex[bbase]
+ if not t[ind] then t[ind] = {} end
+ for i=b, e do
+ for j,v in pairs(t) do
+ if v[i] then -- remove old entry
+ if j~=ind then v[i]=nil end; break
+ end
+ end
+ t[ind][i]=true
+ end
+ -- remove the empty tables
+ for j,v in pairs(t) do
+ local flag_clear = true
+ for k,_ in pairs(v) do flag_clear = false; break end
+ if flag_clear then t[j]=nil end
end
+ if ind==bbase then t[bbase] = nil end
end
--- extract jfm_file_name and jfm_var
-local function extract_metric(name)
- local basename=name
- local tmp = utf.sub(basename, 1, 5)
- jfm_file_name = ''; jfm_var = ''
- if tmp == 'file:' or tmp == 'name:' or tmp == 'psft:' then
- basename = utf.sub(basename, 6)
+-- 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
+ 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
- local p = utf.find(basename, ":")
- if p then
- basename = utf.sub(basename, p+1)
- else return
+ -- EXT
+ function print_aftl_address()
+ tex.sprint(cat_lp, ';ltjaltfont' .. tostring(aftl_base):sub(8))
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)
+
+-- EXT
+ function output_alt_font_cmd(bbase)
+ alt_font_base = bbase
+ alt_font_base_num = tex.getattribute(attr_curjfnt)
+ local t = alt_font_table[alt_font_base_num]
+ 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
+ end
+ end
+
+-- EXT
+ 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
+ end
+ end
+
+ local function pickup_alt_font_class(class, afnt_num, afnt_chars)
+ 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
+ end
+ end
+
+-- EXT
+ function pickup_alt_font_b(afnt_num, afnt_base)
+ local t = alt_font_table[alt_font_base_num]
+ 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
+ end
+ return
+ end
end
- if utf.len(basename)+1==q then p = nil else p = q + 1 end
end
- return
-end
--- replace fonts.define.read()
-local ljft_dr_orig = fonts.define.read
-function fonts.define.read(name, size, id)
- extract_metric(name)
- -- In the present imple., we don't remove "jfm=..." from name.
- return ljft_dr_orig(name, size, id)
end
+
------------------------------------------------------------------------
-- MISC
------------------------------------------------------------------------
+local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
-- 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 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)
- g.subtype = 1; node.set_attribute(g, attr_icflag, ITALIC)
- if ltjc.is_ucs_in_japanese_char(p) then
+ 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]
- local c = find_char_class(p.char, j)
- g.kern = j.char_type[c].italic
+ setfield(g, 'kern', j.char_type[find_char_class(getchar(p), j)].italic)
else
- g.kern = font.fonts[f].characters[p.char].italic
+ local h = font_getfont(f)
+ if h then
+ setfield(g, 'kern', h.characters[getchar(p)].italic)
+ else
+ tex.attribute[attr_icflag] = 0
+ return node_free(g)
+ end
end
- node.write(g)
- tex.attribute[attr_icflag] = -(0x7FFFFFFF)
+ node_write(g)
+ tex.attribute[attr_icflag] = 0
end
end
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