--
luatexbase.provides_module({
name = 'luatexja.adjust',
- date = '2014/05/08',
+ date = '2014/09/30',
description = 'Advanced line adjustment for LuaTeX-ja',
})
module('luatexja.adjust', package.seeall)
local id_whatsit = node.id('whatsit')
local attr_icflag = luatexbase.attributes['ltj@icflag']
local attr_jchar_class = luatexbase.attributes['ltj@charclass']
-local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
+local lang_ja = luatexja.lang_ja
local ltjf_font_metric_table = ltjf.font_metric_table
local spec_zero_glue = ltjj.spec_zero_glue
local total = 0
for q in node_traverse_id(id_glue, getlist(p)) do
local a, ic = get_stretched(q, go, gs), get_attr_icflag(q)
+ if ic == KANJI_SKIP_JFM then ic = KANJI_SKIP
+ elseif ic == XKANJI_SKIP_JFM then ic = XKANJI_SKIP
+ end
if type(res[ic]) == 'number' then
-- kanjiskip, xkanjiskip は段落内で spec を共有しているが,
-- それはここでは望ましくないので,各 glue ごとに異なる spec を使う.
gs_used_line[qs] = line
end
end
- elseif ic == KANJI_SKIP_JFM then ic = KANJI_SKIP
- elseif ic == XKANJI_SKIP_JFM then ic = XKANJI_SKIP
end
res[ic], total = res[ic] + a, total + a
else
local function clear_stretch(p, ic, name)
for q in node_traverse_id(id_glue, getlist(p)) do
- if get_attr_icflag(q) == ic then
+ local f = get_attr_icflag(q)
+ if (f == ic) or ((ic ==KANJI_SKIP) and (f == KANJI_SKIP_JFM))
+ or ((ic ==XKANJI_SKIP) and (f == XKANJI_SKIP_JFM)) then
local qs = getfield(q, 'spec')
if getfield(qs, 'writable') then
setfield(qs, name..'_order', 0)
-- step 1: 行末に kern を挿入(句読点,中点用)
local ltjd_glyph_from_packed = ltjd.glyph_from_packed
local function aw_step1(p, res, total)
- local x = node_tail(getlist(p)); if not x then return false end
+ local head = getlist(p)
+ local x = node_tail(head); if not x then return false end
-- x: \rightskip
x = node_prev(x); if not x then return false end
- if getid(x) == id_glue and getsubtype(x) == 15 then
+ local xi, xc = getid(x)
+ if xi == id_glue and getsubtype(x) == 15 then
-- 段落最終行のときは,\penalty10000 \parfillskip が入るので,
-- その前の node が本来の末尾文字となる
- x = node_prev(node_prev(x))
+ x = node_prev(node_prev(x)); xi = getid(x)
end
-- local xi = getid(x)
-- while (get_attr_icflag(x) == PACKED)
-- and ((xi == id_penalty) or (xi == id_kern) or (xi == id_kern)) do
-- x = node_prev(x); xi = getid(x)
-- end
- local xi, xc = getid(x)
- if xi == id_glyph and has_attr(x, attr_curjfnt) == getfont(x) then
+ if xi == id_glyph and getfield(x, 'lang')==lang_ja then
-- 和文文字
xc = x
elseif xi == id_hlist and get_attr_icflag(x) == PACKED then
-- packed JAchar
xc = ltjd_glyph_from_packed(x)
- while getid(xc) == id_whatsit do xc = node_next(xc) end
+ while getid(xc) == id_whatsit do xc = node_next(xc) end -- これはなんのために?
else
return false-- それ以外は対象外.
end
local xk = ltjf_font_metric_table[getfont(xc)]
- .char_type[has_attr(xc, attr_jchar_class) or 0]['end_' .. res.name] or 0
+ .char_type[has_attr(xc, attr_jchar_class) or 0]['end_' .. res.name] or 0
if xk>0 and total>=xk then
total = total - xk
local kn = node_new(id_kern)
setfield(kn, 'kern', (res.name=='shrink' and -1 or 1) * xk)
set_attr(kn, attr_icflag, FROM_JFM)
- insert_after(p, x, kn)
+ insert_after(head, x, kn)
return true
else return false
end