--
luatexbase.provides_module({
name = 'luatexja.jfmglue',
- date = '2012/04/25',
- version = '0.4',
+ date = '2012/07/19',
+ version = '0.5',
description = 'Insertion process of JFM glues and kanjiskip',
})
module('luatexja.jfmglue', package.seeall)
local err, warn, info, log = luatexbase.errwarinf(_NAME)
-local node = node
-luatexja.load_module('base'); local ltjb = luatexja.base
luatexja.load_module('stack'); local ltjs = luatexja.stack
luatexja.load_module('jfont'); local ltjf = luatexja.jfont
luatexja.load_module('pretreat'); local ltjp = luatexja.pretreat
local has_attr = node.has_attribute
local set_attr = node.set_attribute
+local insert_before = node.insert_before
+local node_next = node.next
local round = tex.round
-local uniq_id = 0 -- unique id
+local ltjf_font_metric_table = ltjf.font_metric_table
+local ltjf_find_char_class = ltjf.find_char_class
+local node_new = node.new
+local node_copy = node.copy
+
+local ligature_head = 1
+local ligature_tail = 2
local id_glyph = node.id('glyph')
local id_hlist = node.id('hlist')
local id_penalty = node.id('penalty')
local id_glue_spec = node.id('glue_spec')
-local id_jglyph = node.id('glyph') + 256 -- Japanese character
-local id_box_like = node.id('hlist') + 256 -- vbox, shifted hbox
-local id_pbox = node.id('hlist') + 512 -- already processed nodes (by \unhbox)
-local id_pbox_w = node.id('hlist') + 513 -- cluster which consists of a whatsit
+local id_jglyph = 512 -- Japanese character
+local id_box_like = 256 -- vbox, shifted hbox
+local id_pbox = 257 -- already processed nodes (by \unhbox)
+local id_pbox_w = 258 -- cluster which consists of a whatsit
local sid_user = node.subtype('user_defined')
local sid_start_link = node.subtype('pdf_start_link')
local sid_end_link = node.subtype('pdf_end_link')
local sid_end_thread = node.subtype('pdf_end_thread')
-local ITALIC = 1
-local PACKED = 2
-local KINSOKU = 3
-local FROM_JFM = 4
-local LINE_END = 5
-local KANJI_SKIP = 6
-local XKANJI_SKIP = 7
-local PROCESSED = 8
-local IC_PROCESSED = 9
-local BOXBDD = 15
-
+local ITALIC = luatexja.icflag_table.ITALIC
+local PACKED = luatexja.icflag_table.PACKED
+local KINSOKU = luatexja.icflag_table.KINSOKU
+local FROM_JFM = luatexja.icflag_table.FROM_JFM
+local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
+local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
+local PROCESSED = luatexja.icflag_table.PROCESSED
+local IC_PROCESSED = luatexja.icflag_table.IC_PROCESSED
+local BOXBDD = luatexja.icflag_table.BOXBDD
+local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
local kanji_skip
local xkanji_skip
+local table_current_stack
-local attr_jchar_class = luatexbase.attributes['ltj@charclass']
local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
local attr_icflag = luatexbase.attributes['ltj@icflag']
-local attr_autospc = luatexbase.attributes['ltj@autospc']
-local attr_autoxspc = luatexbase.attributes['ltj@autoxspc']
-local attr_uniqid = luatexbase.attributes['ltj@uniqid']
-local max_dimen = 1073741823
-local box_stack_level
-local par_indented -- is the paragraph indented?
+local function get_attr_icflag(p)
+ return (has_attr(p, attr_icflag) or 0)%PROCESSED_BEGIN_FLAG
+end
-------------------- Helper functions
local function copy_attr(new, old)
- local a = old.attr
- if a then a = a.next end
- while a do
- set_attr(new, a.number, a.value)
- a = node.next(a)
- end
+ -- 仕様が決まるまで off にしておく
end
-- This function is called only for acquiring `special' characters.
return m.chars[c] or 0
end
-local spec_zero_glue = node.new(id_glue_spec)
+-- 文字クラスの決定
+local function slow_find_char_class(c, m, oc)
+ local xc = c or oc
+ local cls = ltjf_find_char_class(oc, m)
+ if xc ~= oc and cls==0 then cls, xc = ltjf_find_char_class(-xc, m) end
+ return cls, xc
+end
+
+local zero_glue = node_new(id_glue)
+spec_zero_glue = node_new(id_glue_spec) -- must be public, since mentioned from other sources
+local spec_zero_glue = spec_zero_glue
spec_zero_glue.width = 0; spec_zero_glue.stretch_order = 0; spec_zero_glue.stretch = 0
spec_zero_glue.shrink_order = 0; spec_zero_glue.shrink = 0
-
-local function get_zero_spec()
- return node.copy(spec_zero_glue)
-end
+ zero_glue.spec = spec_zero_glue
local function skip_table_to_spec(n)
- local g = node.new(id_glue_spec)
- local st = ltjs.get_skip_table(n, box_stack_level)
+ local g, st = node_new(id_glue_spec), ltjs.fast_get_skip_table(n)
g.width = st.width; g.stretch = st.stretch; g.shrink = st.shrink
g.stretch_order = st.stretch_order; g.shrink_order = st.shrink_order
return g
end
+
-- penalty 値の計算
local function add_penalty(p,e)
- if p.penalty>=10000 then
- if e<=-10000 then p.penalty = 0 end
- elseif p.penalty<=-10000 then
- if e>=10000 then p.penalty = 0 end
+ local pp = p.penalty
+ if pp>=10000 then
+ if e<=-10000 then pp = 0 end
+ elseif pp<=-10000 then
+ if e>=10000 then pp = 0 end
else
- p.penalty = p.penalty + e
- if p.penalty>=10000 then p.penalty = 10000
- elseif p.penalty<=-10000 then p.penalty = -10000 end
+ pp = pp + e
+ if pp>=10000 then p.penalty = 10000
+ elseif pp<=-10000 then p.penalty = -10000
+ else p.penalty = pp end
end
return
end
-- 「異なる JFM」の間の調整方法
-diffmet_rule = math.two_average
+diffmet_rule = math.two_paverage
function math.two_add(a,b) return a+b end
function math.two_average(a,b) return (a+b)*0.5 end
-
--------------------- idea
--- 2 node の間に glue/kern/penalty を挿入する．
--- 基本方針: char node q と char node p の間
-
--- Np: 「p を核とする塊」
--- first: 最初の node，nuc: p，last: 最後の node
--- id: 核 node の種類
--- Nq: 「q を核とする塊」
--- 実際の glue は Np.last, Nq.first の間に挿入される
--- Bp: Np.last, Nq.first の間の penalty node 達の配列
-
--- Np, Nq, Bp, widow_Bp について
--- Np, Nq は別々のテーブル．
--- 1回のループごとに Nq = Np, Np = (new table) となるのは効率が悪いので，
--- Np <-> Nq 入れ替え，その後 Np をクリアすることでテーブルを再利用．
--- 同様の関係は Bp, widow_Bp にも．
-
-
--- 核の定義：
--- node x が non-char node のときは，x のみ
--- x が char_node のときは，
--- - x が \accent の第二引数だったとき
--- [kern2 kern y kern2] x の 3 node が核に加わる
--- - x の直後に \/ 由来 kern があったとき
--- その \/ 由来の kern が核に加わる
--- p, q の走査で無視するもの：
--- ins, mark, adjust, whatsit, penalty
---
--- Nq.last .. + .. Bp.first .... Bp[last] .... * .. Np.first
--- +: kern from LINEEND はここに入る
--- *: jfm glue はここに入る
+function math.two_paverage(a,b) return (a+b)*0.5 end
+function math.two_pleft(a,b) return a end
+function math.two_pright(a,b) return b end
local head -- the head of current list
-local last -- the last node of current list
-local lp -- 外側での list 走査時のカーソル
local Np, Nq, Bp
local widow_Bp, widow_Np -- \jcharwidowpenalty 挿入位置管理用
end
while p and p~=box_end do
local pid = p.id
- if pid==id_kern then
- if p.subtype==2 then
- p = node.next(node.next(node.next(p))); pid = p.id
- elseif has_attr(p, attr_icflag)==IC_PROCESSED then
- p = node.next(p); pid = p.id
- end
- end
+ if pid==id_kern and p.subtype==2 then
+ p = node_next(node_next(node_next(p))); pid = p.id -- p must be glyph_node
+ end
if pid==id_glyph then
repeat
if find_first_char then
first_char = p; find_first_char = false
end
- last_char = p; found_visible_node = true; p=node.next(p)
- if (not p) or p==box_end then return found_visible_node end
+ last_char = p; found_visible_node = true; p=node_next(p)
+ if (not p) or p==box_end then
+ return found_visible_node
+ end
until p.id~=id_glyph
- pid = p.id
+ pid = p.id -- p must be non-nil
end
- if pid==id_hlist then
- if has_attr(p, attr_icflag)==PACKED then
- for q in node.traverse_id(id_glyph, p.head) do
- if find_first_char then
- first_char = q; find_first_char = false
- end
- last_char = q; found_visible_node = true; break
+ if pid==id_kern then
+ if get_attr_icflag(p)==IC_PROCESSED then
+ -- do nothing
+ elseif p.subtype==2 then
+ p = node_next(node_next(p));
+ -- Note that another node_next will be executed outside this if-statement.
+ else
+ found_visible_node = true
+ if find_first_char then
+ find_first_char = false
+ else
+ last_char = nil
+ end
+ end
+ elseif pid==id_hlist then
+ if PACKED == get_attr_icflag(p) then
+ if find_first_char then
+ first_char = p.head; find_first_char = false
end
+ last_char = p.head; found_visible_node = true
else
if p.shift==0 then
if check_box(p.head, nil) then found_visible_node = true end
end
end
end
+ elseif pid==id_math then
+ if find_first_char then
+ first_char = p; find_first_char = false
+ end
+ last_char = p; found_visible_node = true
elseif not (pid==id_ins or pid==id_mark
or pid==id_adjust or pid==id_whatsit
or pid==id_penalty) then
last_char = nil
end
end
- p = node.next(p)
+ p = node_next(p)
end
return found_visible_node
end
function check_box_high(Nx, box_ptr, box_end)
first_char = nil; last_char = nil; find_first_char = true
if check_box(box_ptr, box_end) then
+ local first_char = first_char
if first_char then
- if first_char.font == has_attr(first_char, attr_curjfnt) then
- set_np_xspc_jachar(Nx, first_char)
- else
- set_np_xspc_alchar(Nx, first_char.char,first_char, ligature_head)
+ if first_char.id==id_glyph then
+ if first_char.font == (has_attr(first_char, attr_curjfnt) or -1) then
+ set_np_xspc_jachar(Nx, first_char)
+ else
+ set_np_xspc_alchar(Nx, first_char.char,first_char, ligature_head)
+ end
+ else -- math_node
+ set_np_xspc_alchar(Nx, -1,first_char)
end
end
end
-------------------- Np の計算と情報取得
luatexbase.create_callback("luatexja.jfmglue.whatsit_getinfo", "data",
- function (Np, lp, Nq, box_stack_level)
+ function (Np, lp, Nq)
if Np.nuc then return Np
else
return Np -- your code
end
end)
luatexbase.create_callback("luatexja.jfmglue.whatsit_after", "data",
- function (stat, Nq, Np, box_stack_level) return false end)
+ function (stat, Nq, Np) return false end)
-- calc next Np
+do
+
local function set_attr_icflag_processed(p)
- if (has_attr(p, attr_icflag) or 0)<= ITALIC then
- set_attr(p, attr_uniqid, uniq_id)
+ if get_attr_icflag(p)<= ITALIC then
set_attr(p, attr_icflag, PROCESSED)
end
end
-local function check_next_ickern()
- if lp.id == id_kern and has_attr(lp, attr_icflag)==ITALIC then
- set_attr(lp, attr_icflag, IC_PROCESSED)
- set_attr(lp, attr_uniqid, uniq_id)
- Np.last = lp; lp = node.next(lp)
- else Np.last = Np.nuc end
+local function check_next_ickern(lp)
+ if lp.id == id_kern and ITALIC == get_attr_icflag(lp) then
+ set_attr(lp, attr_icflag, IC_PROCESSED)
+ Np.last = lp; return node_next(lp)
+ else
+ Np.last = Np.nuc; return lp
+ end
end
-local function calc_np_pbox()
- local uid = has_attr(lp, attr_uniqid)
+local function calc_np_pbox(lp, last)
Np.first = Np.first or lp; Np.id = id_pbox
- lpa = KINSOKU -- dummy=
- while lp~=last and lpa>=PACKED and lpa~=BOXBDD
- and has_attr(lp, attr_uniqid) == uid do
- Np.nuc = lp; set_attr(lp, attr_uniqid, uniq_id)
- lp = node.next(lp); lpa = has_attr(lp, attr_icflag) or 0
+ local lpa = KINSOKU -- dummy=
+ set_attr(lp, attr_icflag, get_attr_icflag(lp));
+ while lp~=last and lpa>=PACKED and lpa<BOXBDD do
+ Np.nuc = lp;
+ lp = node_next(lp); lpa = has_attr(lp, attr_icflag) or 0
+ -- get_attr_icflag() ではいけない！
end
- return check_next_ickern()
+ return check_next_ickern(lp)
end
local calc_np_auxtable = {
- [id_glyph] = function()
- Np.first = Np.first or lp
- if lp.font == has_attr(lp, attr_curjfnt) then
- Np.id = id_jglyph
- else
- Np.id = id_glyph
- end
- Np.nuc = lp; set_attr_icflag_processed(lp)
- lp = node.next(lp); check_next_ickern(); return true
+ [id_glyph] = function (lp)
+ Np.first, Np.nuc = (Np.first or lp), lp;
+ Np.id = (lp.font == (has_attr(lp, attr_curjfnt) or -1)) and id_jglyph or id_glyph
+ --set_attr_icflag_processed(lp) treated in ltj-setwidth.lua
+ return true, check_next_ickern(node_next(lp));
end,
- [id_hlist] = function()
+ [id_hlist] = function(lp)
Np.first = Np.first or lp; Np.last = lp; Np.nuc = lp;
- set_attr_icflag_processed(lp)
- if lp.shift~=0 then
- Np.id = id_box_like
- else
- Np.id = id_hlist
- end
- lp = node.next(lp); return true
+ set_attr(lp, attr_icflag, PROCESSED)
+ --set_attr_icflag_processed(lp)
+ Np.id = (lp.shift~=0) and id_box_like or id_hlist
+ return true, node_next(lp)
end,
- [id_vlist] = function()
- Np.first = Np.first or lp; Np.nuc = lp; Np.last = lp;
- Np.id = id_box_like; set_attr_icflag_processed(lp);
- lp = node.next(lp); return true
- end,
- [id_rule] = function()
- Np.first = Np.first or lp; Np.nuc = lp; Np.last = lp;
- Np.id = id_box_like; set_attr_icflag_processed(lp);
- lp = node.next(lp); return true
- end,
- [id_ins] = function()
- set_attr_icflag_processed(lp); lp = node.next(lp)
- return false
+ box_like = function(lp)
+ Np.first = Np.first or lp; Np.nuc = lp; Np.last = lp;
+ Np.id = id_box_like; set_attr(lp, attr_icflag, PROCESSED)
+ -- set_attr_icflag_processed(lp);
+ return true, node_next(lp);
end,
- [id_mark] = function()
- set_attr_icflag_processed(lp); lp = node.next(lp)
- return false
- end,
- [id_adjust] = function()
- set_attr_icflag_processed(lp); lp = node.next(lp)
- return false
- end,
- [id_disc] = function()
- Np.first = Np.first or lp;
- Np.nuc = lp; set_attr_icflag_processed(lp);
- Np.last = lp; Np.id = id_disc; lp = node.next(lp); return true
- end,
- [id_whatsit] = function()
+ skip = function(lp)
+ set_attr(lp, attr_icflag, PROCESSED)
+ -- set_attr_icflag_processed(lp);
+ return false, node_next(lp)
+ end,
+ [id_whatsit] = function(lp)
if lp.subtype==sid_user then
if lp.user_id==30111 then
- local lq = node.next(lp)
- head = node.remove(head, lp); node.free(lp); lp = lq; ihb_flag = true
+ local lq = node_next(lp);
+ head = node.remove(head, lp); node.free(lp); ihb_flag = true
+ return false, lq;
else
- set_attr_icflag_processed(lp)
- luatexbase.call_callback("luatexja.jfmglue.whatsit_getinfo"
- , Np, lp, Nq, box_stack_level)
- lp = node.next(lp)
+ set_attr(lp, attr_icflag, PROCESSED)
+ -- set_attr_icflag_processed(lp)
+ luatexbase.call_callback("luatexja.jfmglue.whatsit_getinfo",
+ Np, lp, Nq)
if Np.nuc then
- Np.id = id_pbox_w; Np.first = Np.nuc; Np.last = Np.nuc; return true
+ Np.id = id_pbox_w; Np.first = Np.nuc; Np.last = Np.nuc;
+ return true, node_next(lp)
+ else
+ return false, node_next(lp)
end
end
else
if lp.subtype == sid_start_link or lp.subtype == sid_start_thread then
Np.first = lp
elseif lp.subtype == sid_end_link or lp.subtype == sid_end_thread then
- Nq.last = lp; Np.first = nil
+ Np.first, Nq.last = nil, lp;
end
- set_attr_icflag_processed(lp); lp = node.next(lp)
+ set_attr(lp, attr_icflag, PROCESSED)
+ -- set_attr_icflag_processed(lp);
+ return false, node_next(lp)
end
- return false
end,
- [id_math] = function()
- Np.first = Np.first or lp; Np.nuc = lp;
- set_attr_icflag_processed(lp); lp = node.next(lp)
+ [id_math] = function(lp)
+ Np.first, Np.nuc = (Np.first or lp), lp;
+ set_attr(lp, attr_icflag, PROCESSED) -- set_attr_icflag_processed(lp);
+ lp = node_next(lp)
while lp.id~=id_math do
- set_attr_icflag_processed(lp); lp = node.next(lp)
+ set_attr(lp, attr_icflag, PROCESSED) -- set_attr_icflag_processed(lp);
+ lp = node_next(lp)
end
- set_attr_icflag_processed(lp);
- Np.last = lp; Np.id = id_math; lp = node.next(lp);
- return true
+ set_attr(lp, attr_icflag, PROCESSED) -- set_attr_icflag_processed(lp);
+ Np.last, Np.id = lp, id_math;
+ return true, node_next(lp);
end,
- [id_glue] = function()
- Np.first = Np.first or lp; Np.nuc = lp; set_attr_icflag_processed(lp);
- Np.last = lp; Np.id = id_glue; lp = node.next(lp); return true
+ discglue = function(lp)
+ Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp;
+ Np.id = lp.id; set_attr(lp, attr_icflag, PROCESSED) -- set_attr_icflag_processed(lp);
+ return true, node_next(lp)
end,
- [id_kern] = function()
+ [id_kern] = function(lp)
Np.first = Np.first or lp
if lp.subtype==2 then
- set_attr_icflag_processed(lp); lp = node.next(lp)
- set_attr_icflag_processed(lp); lp = node.next(lp)
- set_attr_icflag_processed(lp); lp = node.next(lp)
- set_attr_icflag_processed(lp); Np.nuc = lp
- if lp.font == has_attr(lp, attr_curjfnt) then
- Np.id = id_jglyph
- else
- Np.id = id_glyph
- end
- lp = node.next(lp); check_next_ickern();
+ set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
+ set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
+ set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp)
+ set_attr(lp, attr_icflag, PROCESSED); Np.nuc = lp
+ Np.id = (lp.font == (has_attr(lp, attr_curjfnt) or -1)) and id_jglyph or id_glyph
+ return true, check_next_ickern(node_next(lp));
else
- Np.id = id_kern; set_attr_icflag_processed(lp);
- Np.last = lp; lp = node.next(lp)
+ Np.id = id_kern; set_attr(lp, attr_icflag, PROCESSED); -- set_attr_icflag_processed(lp);
+ Np.last = lp; return true, node_next(lp)
end
- return true
end,
- [id_penalty] = function()
- Bp[#Bp+1] = lp; set_attr_icflag_processed(lp);
- lp = node.next(lp); return false
+ [id_penalty] = function(lp)
+ Bp[#Bp+1] = lp; set_attr(lp, attr_icflag, PROCESSED); -- set_attr_icflag_processed(lp);
+ return false, node_next(lp)
end,
- [13] = function()
- Np.first = Np.first or lp; Np.nuc = lp; Np.last = lp;
- Np.id = id_box_like; set_attr_icflag_processed(lp);
- lp = node.next(lp); return true
- end,
}
-
-local function calc_np()
- -- We assume lp = node.next(Np.last)
- local Nr = Nq
- for k in pairs(Nr) do Nr[k] = nil end; Nq = Np; Np = Nr
- for k in pairs(Bp) do Bp[k] = nil end
- ihb_flag = false
+calc_np_auxtable[id_vlist] = calc_np_auxtable.box_like
+calc_np_auxtable[id_rule] = calc_np_auxtable.box_like
+calc_np_auxtable[13] = calc_np_auxtable.box_like
+calc_np_auxtable[id_ins] = calc_np_auxtable.skip
+calc_np_auxtable[id_mark] = calc_np_auxtable.skip
+calc_np_auxtable[id_adjust] = calc_np_auxtable.skip
+calc_np_auxtable[id_disc] = calc_np_auxtable.discglue
+calc_np_auxtable[id_glue] = calc_np_auxtable.discglue
+
+local pairs = pairs
+function calc_np(lp, last)
+ local k
+ -- We assume lp = node_next(Np.last)
+ Np, Nq, ihb_flag = Nq, Np, nil
+ -- We clear `predefined' entries of Np before pairs() loop,
+ -- because using only pairs() loop is slower.
+ Np.post, Np.pre, Np.xspc = nil, nil, nil
+ Np.first, Np.id, Np.last, Np.met = nil, nil, nil
+ Np.auto_kspc, Np.auto_xspc, Np.char, Np.class, Np.nuc = nil, nil, nil, nil, nil
+ for k in pairs(Np) do Np[k] = nil end
+
+ for k = 1,#Bp do Bp[k] = nil end
while lp ~= last do
local lpa = has_attr(lp, attr_icflag) or 0
+ -- unbox 由来ノードの検出
if lpa>=PACKED then
if lpa == BOXBDD then
- local lq = node.next(lp)
+ local lq = node_next(lp)
head = node.remove(head, lp); node.free(lp); lp = lq
- else calc_np_pbox(); return
+ else return calc_np_pbox(lp, last)
end -- id_pbox
- elseif calc_np_auxtable[lp.id]() then return end
+ else
+ k, lp = calc_np_auxtable[lp.id](lp)
+ if k then return lp end
+ end
end
- Np = nil; return
+ Np = nil; return lp
end
-
-
+end
+local calc_np = calc_np
-- extract informations from Np
-- We think that "Np is a Japanese character" if Np.met~=nil,
-- "Np is an alphabetic character" if Np.pre~=nil,
-- "Np is not a character" otherwise.
+do
+ local PRE = luatexja.stack_table_index.PRE
+ local POST = luatexja.stack_table_index.POST
+ local KCAT = luatexja.stack_table_index.KCAT
+ local XSP = luatexja.stack_table_index.XSP
-- 和文文字のデータを取得
-function set_np_xspc_jachar(Nx, x)
- local z = ltjf.font_metric_table[x.font]
- local c = has_attr(x, attr_jchar_class) or 0
- local cls = ltjf.find_char_class(x.char, z) or 0
- if cls==0 then cls = ltjf.find_char_class(-c, z) end
- local m = ltjf.metrics[z.jfm]
- set_attr(x, attr_jchar_class, cls)
- Nx.class = cls
- Nx.char = c
- Nx.size= z.size
- Nx.met = m
- Nx.var = z.var
- Nx.pre = ltjs.get_penalty_table('pre', c, 0, box_stack_level)
- Nx.post = ltjs.get_penalty_table('post', c, 0, box_stack_level)
- z = fast_find_char_class('lineend', m)
- local y = m.size_cache[Nx.size].char_type[Nx.class]
- Nx.lend = y.kern[z] or 0
- y = ltjs.get_penalty_table('xsp', c, 3, box_stack_level)
- Nx.xspc_before = (y%2==1)
- Nx.xspc_after = (y>=2)
- Nx.auto_kspc = (has_attr(x, attr_autospc)==1)
- Nx.auto_xspc = (has_attr(x, attr_autoxspc)==1)
-end
+ local attr_jchar_class = luatexbase.attributes['ltj@charclass']
+ local attr_orig_char = luatexbase.attributes['ltj@origchar']
+ local attr_autospc = luatexbase.attributes['ltj@autospc']
+ local attr_autoxspc = luatexbase.attributes['ltj@autoxspc']
+ function set_np_xspc_jachar(Nx, x)
+ local m = ltjf_font_metric_table[x.font]
+ local cls, c = slow_find_char_class(has_attr(x, attr_orig_char), m, x.char)
+ Nx.class = cls; set_attr(x, attr_jchar_class, cls)
+ Nx.met, Nx.char = m, c
+ Nx.pre = table_current_stack[PRE + c] or 0
+ Nx.post = table_current_stack[POST + c] or 0
+ Nx.xspc = table_current_stack[XSP + c] or 3
+ Nx.kcat = table_current_stack[KCAT + c] or 0
+ Nx.auto_kspc, Nx.auto_xspc = (has_attr(x, attr_autospc)==1), (has_attr(x, attr_autoxspc)==1)
+ end
+ local set_np_xspc_jachar = set_np_xspc_jachar
-- 欧文文字のデータを取得
-local ligature_head = 1
-local ligature_tail = 2
-function set_np_xspc_alchar(Nx, c,x, lig)
- if c~=-1 then
- if lig == ligature_head then
- while x.components and x.subtype and math.floor(x.subtype*0.5)%2==1 do
- x = x.components; c = x.char
+ local floor = math.floor
+ function set_np_xspc_alchar(Nx, c,x, lig)
+ if c~=-1 then
+ local xc, xs = x.components, x.subtype
+ if lig == 1 then
+ while xc and xs and xs%4>=2 do
+ x = xc; xc, xs = x.components, x.subtype
+ end
+ c = x.char
+ else
+ while xc and xs and xs%4>=2 do
+ x = node.tail(xc); xc, xs = x.components, x.subtype
+ end
+ c = x.char
end
+ Nx.pre = table_current_stack[PRE + c] or 0
+ Nx.post = table_current_stack[POST + c] or 0
+ Nx.xspc = table_current_stack[XSP + c] or 3
+ Nx.char = 'jcharbdd'
else
- while x.components and x.subtype and math.floor(x.subtype*0.5)%2==1 do
- x = node.tail(x.components); c = x.char
- end
+ Nx.pre, Nx.post, Nx.char = 0, 0, -1
+ Nx.xspc = table_current_stack[XSP - 1] or 3
end
- Nx.pre = ltjs.get_penalty_table('pre', c, 0, box_stack_level)
- Nx.post = ltjs.get_penalty_table('post', c, 0, box_stack_level)
- Nx.char = 'jcharbdd'
- else
- Nx.pre = 0; Nx.post = 0; Nx.char = -1
+ Nx.met = nil
+ Nx.auto_xspc = (has_attr(x, attr_autoxspc)==1)
end
- Nx.met = nil
- local y = ltjs.get_penalty_table('xsp', c, 3, box_stack_level)
- Nx.xspc_before = (y%2==1)
- Nx.xspc_after = (y>=2)
- Nx.auto_xspc = (has_attr(x, attr_autoxspc)==1)
-end
+ local set_np_xspc_alchar = set_np_xspc_alchar
-- Np の情報取得メインルーチン
-local function extract_np()
- local x, i = Np.nuc, Np.id;
- if i == id_jglyph then return set_np_xspc_jachar(Np, x)
- elseif i == id_glyph then return set_np_xspc_alchar(Np, x.char, x, ligature_head)
- elseif i == id_hlist then Np.last_char = check_box_high(Np, x.head, nil)
- elseif i == id_pbox then Np.last_char = check_box_high(Np, Np.first, node.next(Np.last))
- elseif i == id_disc then Np.last_char = check_box_high(Np, x.replace, nil)
- elseif i == id_math then return set_np_xspc_alchar(Np, -1, x)
- end
-end
-
--- change the information for the next loop
--- (will be done if Nx is an alphabetic character or a hlist)
-function after_hlist(Nx)
- if Nx.last_char then
- if Nx.last_char.font == has_attr(Nx.last_char, attr_curjfnt) then
- set_np_xspc_jachar(Nx, Nx.last_char);
+ function extract_np()
+ local x, i = Np.nuc, Np.id;
+ if i == id_jglyph then return set_np_xspc_jachar(Np, x)
+ elseif i == id_glyph then return set_np_xspc_alchar(Np, x.char, x, ligature_head)
+ elseif i == id_hlist then Np.last_char = check_box_high(Np, x.head, nil)
+ elseif i == id_pbox then Np.last_char = check_box_high(Np, Np.first, node_next(Np.last))
+ elseif i == id_disc then Np.last_char = check_box_high(Np, x.replace, nil)
+ elseif i == id_math then return set_np_xspc_alchar(Np, -1, x)
+ end
+ end
+
+ -- change the information for the next loop
+ -- (will be done if Nx is an alphabetic character or a hlist)
+ function after_hlist(Nx)
+ local s = Nx.last_char
+ if s then
+ if s.id==id_glyph then
+ if s.font == (has_attr(s, attr_curjfnt) or -1) then
+ set_np_xspc_jachar(Nx, s)
+ else
+ set_np_xspc_alchar(Nx, s.char, s, ligature_tail)
+ end
+ else
+ set_np_xspc_alchar(Nx, -1, s)
+ end
else
- set_np_xspc_alchar(Nx, Nx.last_char.char,Nx.last_char, ligature_tail)
+ Nx.pre, Nx.met = nil, nil
end
- else
- Nx.pre = nil; Nx.met = nil
end
-end
+
+ function after_alchar(Nx)
+ local x = Nx.nuc
+ return set_np_xspc_alchar(Nx, x.char,x, ligature_tail)
+ end
-local function after_alchar(Nx)
- local x = Nx.nuc
- return set_np_xspc_alchar(Nx, x.char,x, ligature_tail)
end
-
+local after_hlist, after_alchar, extract_np = after_hlist, after_alchar, extract_np
-------------------- 最下層の処理
-local function lineend_fix(g)
- if g and g.id==id_kern then
- Nq.lend = 0
- elseif Nq.lend~=0 then
- if not g then
- g = node.new(id_kern); copy_attr(g, Nq.nuc);
- g.subtype = 1; g.kern = -Nq.lend;
- set_attr(g, attr_icflag, LINEEND)
- set_attr(g, attr_uniqid, uniq_id)
- elseif g.id==id_kern then
- g.kern = g.kern - Nq.lend
- else
- g.spec.width = g.spec.width - Nq.lend
- end
- end
- return g
-end
-
-- change penalties (or create a new penalty, if needed)
local function handle_penalty_normal(post, pre, g)
local a = (pre or 0) + (post or 0)
if #Bp == 0 then
- if (a~=0 and not(g and g.id==id_kern)) or Nq.lend~=0 then
- local p = node.new(id_penalty); copy_attr(p, Nq.nuc)
+ if (a~=0 and not(g and g.id==id_kern)) then
+ local p = node_new(id_penalty); --copy_attr(p, Nq.nuc)
if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end
p.penalty = a
- head = node.insert_before(head, Np.first, p)
- Bp[#Bp+1]=p;
- set_attr(p, attr_icflag, KINSOKU)
- set_attr(p, attr_uniqid, uniq_id)
+ head = insert_before(head, Np.first, p)
+ Bp[1]=p;
+ set_attr(p, attr_icflag, KINSOKU)
end
- else for i, v in pairs(Bp) do add_penalty(v,a) end
+ else for _, v in pairs(Bp) do add_penalty(v,a) end
end
end
local function handle_penalty_always(post, pre, g)
local a = (pre or 0) + (post or 0)
if #Bp == 0 then
- if not (g and g.id==id_glue) or Nq.lend~=0 then
- local p = node.new(id_penalty); copy_attr(p, Nq.nuc)
+ if not (g and g.id==id_glue) then
+ local p = node_new(id_penalty); --copy_attr(p, Nq.nuc)
if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end
p.penalty = a
- head = node.insert_before(head, Np.first, p)
- Bp[#Bp+1]=p
- set_attr(p, attr_icflag, KINSOKU)
- set_attr(p, attr_uniqid, uniq_id)
+ head = insert_before(head, Np.first, p)
+ Bp[1]=p
+ set_attr(p, attr_icflag, KINSOKU)
end
- else for i, v in pairs(Bp) do add_penalty(v,a) end
+ else for _, v in pairs(Bp) do add_penalty(v,a) end
end
end
local a = (pre or 0) + (post or 0)
if #Bp == 0 then
if g and g.id==id_glue then
- local p = node.new(id_penalty); copy_attr(p, Nq.nuc)
- p.penalty = 10000; head = node.insert_before(head, Np.first, p)
- Bp[#Bp+1]=p
- set_attr(p, attr_icflag, KINSOKU)
- set_attr(p, attr_uniqid, uniq_id)
+ local p = node_new(id_penalty); --copy_attr(p, Nq.nuc)
+ p.penalty = 10000; head = insert_before(head, Np.first, p)
+ Bp[1]=p
+ set_attr(p, attr_icflag, KINSOKU)
end
- else for i, v in pairs(Bp) do add_penalty(v,a) end
+ else for _, v in pairs(Bp) do add_penalty(v,a) end
end
end
-- 和文文字間の JFM glue を node 化
-local function new_jfm_glue(Nn, bc, ac)
+local function new_jfm_glue(m, bc, ac)
-- bc, ac: char classes
- local g = nil
- local z = Nn.met.size_cache[Nn.size].char_type[bc]
- if z.glue[ac] then
- local h = node.new(id_glue_spec)
- h.width = z.glue[ac][1]
- h.stretch = z.glue[ac][2]
- h.shrink = z.glue[ac][3]
- h.stretch_order=0; h.shrink_order=0
- g = node.new(id_glue); copy_attr(g, Nn.nuc)
- g.subtype = 0; g.spec = h
- set_attr(g, attr_icflag, FROM_JFM); set_attr(g, attr_uniqid, uniq_id)
- elseif z.kern[ac] then
- g = node.new(id_kern); copy_attr(g, Nn.nuc)
- g.subtype = 1; g.kern = z.kern[ac]
- set_attr(g, attr_icflag, FROM_JFM); set_attr(g, attr_uniqid, uniq_id)
+ local z = m.char_type[bc]
+ local g, d = z.glue[ac], 0
+ if g then
+ g,d = node_copy(g[1]), g[2];
+ g.spec = node_copy(g.spec); -- node_copy は spec をコピーする
+ else
+ local k = z.kern[ac]
+ if k then
+ g = node_new(id_kern); --copy_attr(g, Nn.nuc)
+ g.subtype = 1; g.kern, d = k[1], k[2]
+ set_attr(g, attr_icflag, FROM_JFM);
+ end
end
- return g
+ return g, d
end
-- Nq.last (kern w) .... (glue/kern g) Np.first
-local function real_insert(w, g)
- if w~=0 then
- local h = node.new(id_kern); copy_attr(h, Nq.nuc)
- set_attr(h, attr_icflag, LINE_END)
- set_attr(h, attr_uniqid, uniq_id)
- h.kern = w; h.subtype = 1
- head = node.insert_after(head, Nq.last, h)
- end
+local function real_insert(g)
if g then
- head = node.insert_before(head, Np.first, g)
+ head = insert_before(head, Np.first, g)
Np.first = g
end
end
+
-------------------- 和文文字間空白量の決定
-- get kanjiskip
-local function get_kanji_skip_from_jfm(Nn)
- local i = Nn.met.size_cache[Nn.size].kanjiskip
- print(Nn.met.size_cache[Nn.size])
- if i then
- return { i[1], i[2], i[3] }
- else return nil
+local get_kanjiskip
+
+local function get_kanjiskip_normal()
+ if Np.auto_kspc or Nq.auto_kspc then
+ return node_copy(kanji_skip)
+ else
+ local g = node_copy(zero_glue)
+ set_attr(g, attr_icflag, KANJI_SKIP)
+ return g
end
end
-local function get_kanjiskip()
- local g = node.new(id_glue); copy_attr(g, Nq.nuc)
+local function get_kanjiskip_jfm()
+ local g
if Np.auto_kspc or Nq.auto_kspc then
- if kanji_skip.width == max_dimen then
- local gx = node.new(id_glue_spec);
- gx.stretch_order = 0; gx.shrink_order = 0
- local bk = get_kanji_skip_from_jfm(Nq)
- local ak
- if (Np.met==Nq.met) and (Nq.size==Np.size) and (Nq.var==Np.var) then
- ak = nil
- else
- ak = get_kanji_skip_from_jfm(Np)
- end
- if bk then
- if ak then
- gx.width = round(diffmet_rule(bk[1], ak[1]))
- gx.stretch = round(diffmet_rule(bk[2], ak[2]))
- gx.shrink = -round(diffmet_rule(-bk[3], -ak[3]))
- else
- gx.width = bk[1]; gx.stretch = bk[2]; gx.shrink = bk[3]
- end
- elseif ak then
- gx.width = ak[1]; gx.stretch = ak[2]; gx.shrink = ak[3]
- else node.free(gx); gx = get_zero_spec() -- fallback
- end
- g.spec = gx
- else g.spec=node.copy(kanji_skip); node.free(gx) end
+ g = node_new(id_glue); --copy_attr(g, Nq.nuc)
+ local gx = node_new(id_glue_spec);
+ gx.stretch_order, gx.shrink_order = 0, 0
+ local pm, qm = Np.met, Nq.met
+ local bk = qm.kanjiskip or {0, 0, 0}
+ if (pm.char_type==qm.char_type) and (qm.var==pm.var) then
+ gx.width = bk[1]; gx.stretch = bk[2]; gx.shrink = bk[3]
+ else
+ local ak = pm.kanjiskip or {0, 0, 0}
+ gx.width = round(diffmet_rule(bk[1], ak[1]))
+ gx.stretch = round(diffmet_rule(bk[2], ak[2]))
+ gx.shrink = -round(diffmet_rule(-bk[3], -ak[3]))
+ end
+ g.spec = gx
else
- g.spec = get_zero_spec(); node.free(gx)
+ g = node_copy(zero_glue)
end
set_attr(g, attr_icflag, KANJI_SKIP)
- set_attr(g, attr_uniqid, uniq_id)
return g
end
-local function calc_ja_ja_aux(gb,ga)
+local function calc_ja_ja_aux(gb,ga, db, da)
+ local rbb, rab = (1-db)/2, (1-da)/2 -- 「前の文字」由来のグルーの割合
+ local rba, raa = (1+db)/2, (1+da)/2 -- 「前の文字」由来のグルーの割合
+ if diffmet_rule ~= math.two_pleft and diffmet_rule ~= math.two_pright
+ and diffmet_rule ~= math.two_paverage then
+ rbb, rab, rba, raa = 1,0,0,1
+ end
if not gb then
+ if ga then gb = node_new(id_kern); gb.kern = 0 else return nil end
+ elseif not ga then
+ ga = node_new(id_kern); ga.kern = 0
+ end
+
+ local k = node.type(gb.id) .. node.type(ga.id)
+ if k == 'glueglue' then
+ -- 両方とも glue．
+ gb.spec.width = round(diffmet_rule(
+ rbb*gb.spec.width + rba*ga.spec.width,
+ rab*gb.spec.width + raa*ga.spec.width ))
+ gb.spec.stretch = round(diffmet_rule(
+ rbb*gb.spec.stretch + rba*ga.spec.stretch,
+ rab*gb.spec.stretch + raa*ga.spec.stretch ))
+ gb.spec.shrink = -round(diffmet_rule(
+ -rbb*gb.spec.shrink - rba*ga.spec.shrink,
+ -rab*gb.spec.shrink - raa*ga.spec.shrink ))
+ node.free(ga)
+ return gb
+ elseif k == 'kernkern' then
+ -- 両方とも kern．
+ gb.kern = round(diffmet_rule(
+ rbb*gb.kern + rba*ga.kern,
+ rab*gb.kern + raa*ga.kern ))
+ node.free(ga)
+ return gb
+ elseif k == 'kernglue' then
+ -- gb: kern, ga: glue
+ ga.spec.width = round(diffmet_rule(
+ rbb*gb.kern + rba*ga.spec.width,
+ rab*gb.kern + raa*ga.spec.width ))
+ ga.spec.stretch = round(diffmet_rule(
+ rba*ga.spec.stretch, raa*ga.spec.stretch ))
+ ga.spec.shrink = -round(diffmet_rule(
+ -rba*ga.spec.shrink,-raa*ga.spec.shrink ))
+ node.free(gb)
return ga
else
- if not ga then return gb end
- local k = node.type(gb.id) .. node.type(ga.id)
- if k == 'glueglue' then
- -- 両方とも glue．
- gb.spec.width = round(diffmet_rule(gb.spec.width, ga.spec.width))
- gb.spec.stretch = round(diffmet_rule(gb.spec.stretch,ga.spec.shrink))
- gb.spec.shrink = -round(diffmet_rule(-gb.spec.shrink, -ga.spec.shrink))
- node.free(ga)
- return gb
- elseif k == 'kernkern' then
- -- 両方とも kern．
- gb.kern = round(diffmet_rule(gb.kern, ga.kern))
- node.free(ga)
- return gb
- elseif k == 'kernglue' then
- -- gb: kern, ga: glue
- ga.spec.width = round(diffmet_rule(gb.kern,ga.spec.width))
- ga.spec.stretch = round(diffmet_rule(ga.spec.stretch, 0))
- ga.spec.shrink = -round(diffmet_rule(-ga.spec.shrink, 0))
- node.free(gb)
- return ga
- else
- -- gb: glue, ga: kern
- gb.spec.width = round(diffmet_rule(ga.kern, gb.spec.width))
- gb.spec.stretch = round(diffmet_rule(gb.spec.stretch, 0))
- gb.spec.shrink = -round(diffmet_rule(-gb.spec.shrink, 0))
- node.free(ga)
- return gb
- end
+ -- gb: glue, ga: kern
+ gb.spec.width = round(diffmet_rule(
+ rba*ga.kern + rbb*gb.spec.width,
+ raa*ga.kern + rab*gb.spec.width ))
+ gb.spec.stretch = round(diffmet_rule(
+ rbb*gb.spec.stretch, rab*gb.spec.stretch ))
+ gb.spec.shrink = -round(diffmet_rule(
+ -rbb*gb.spec.shrink,-rab*gb.spec.shrink ))
+ node.free(ga)
+ return gb
end
end
local function calc_ja_ja_glue()
if ihb_flag then return nil
- elseif (Nq.size==Np.size) and (Nq.met==Np.met) and (Nq.var==Np.var) then
- return new_jfm_glue(Nq, Nq.class, Np.class)
else
- return calc_ja_ja_aux(new_jfm_glue(Nq, Nq.class, fast_find_char_class('diffmet',Nq.met)),
- new_jfm_glue(Np, fast_find_char_class('diffmet',Np.met), Np.class))
+ local qm, pm = Nq.met, Np.met
+ if (qm.char_type==pm.char_type) and (qm.var==pm.var) then
+ return new_jfm_glue(qm, Nq.class, Np.class)
+ else
+ local npn, nqn = Np.nuc, Nq.nuc
+ local gb, db = new_jfm_glue(qm, Nq.class,
+ slow_find_char_class(has_attr(npn, attr_orig_char), qm, npn.char))
+ local ga, da = new_jfm_glue(pm,
+ slow_find_char_class(has_attr(nqn, attr_orig_char), pm, nqn.char),
+ Np.class)
+ return calc_ja_ja_aux(gb, ga, db, da);
+ end
end
end
-------------------- 和欧文間空白量の決定
-- get xkanjiskip
-local function get_xkanji_skip_from_jfm(Nn)
- local i = Nn.met.size_cache[Nn.size].xkanjiskip
- if i then
- return i and { i[1], i[2], i[3] }
- else return nil
+local get_xkanjiskip
+local function get_xkanjiskip_normal(Nn)
+ if (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then
+ return node_copy(xkanji_skip)
+ else
+ local g = node_copy(zero_glue)
+ set_attr(g, attr_icflag, XKANJI_SKIP)
+ return g
end
end
-local function get_xkanjiskip(Nn)
- local g = node.new(id_glue); copy_attr(g, Nn.nuc)
- if Nq.xspc_after and Np.xspc_before and (Nq.auto_xspc or Np.auto_xspc) then
- if xkanji_skip.width == max_dimen then
- local gx = node.new(id_glue_spec);
- gx.stretch_order = 0; gx.shrink_order = 0
- local bk = get_xkanji_skip_from_jfm(Nn)
- if bk then
- gx.width = bk[1]; gx.stretch = bk[2]; gx.shrink = bk[3]
- else node.free(gx); gx = get_zero_spec() -- fallback
- end
- g.spec = gx
- else g.spec=node.copy(xkanji_skip) end
+local function get_xkanjiskip_jfm(Nn)
+ local g
+ if (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then
+ g = node_new(id_glue); --copy_attr(g, Nn.nuc)
+ local gx = node_new(id_glue_spec);
+ gx.stretch_order, gx.shrink_order = 0, 0
+ local bk = Nn.met.xkanjiskip or {0, 0, 0}
+ gx.width = bk[1]; gx.stretch = bk[2]; gx.shrink = bk[3]
+ g.spec = gx
else
- g.spec = get_zero_spec()
+ g = node_copy(zero_glue)
end
set_attr(g, attr_icflag, XKANJI_SKIP)
- set_attr(g, attr_uniqid, uniq_id)
return g
end
+
-------------------- 隣接した「塊」間の処理
local function get_OA_skip()
if not ihb_flag then
- return new_jfm_glue(Np, fast_find_char_class(((Nq.id == id_math and -1) or 'jcharbdd'), Np.met), Np.class)
+ local pm = Np.met
+ return new_jfm_glue(pm,
+ fast_find_char_class(((Nq.id == id_math and -1) or 'jcharbdd'), pm), Np.class)
else return nil
end
end
local function get_OB_skip()
if not ihb_flag then
- return new_jfm_glue(Nq, Nq.class, fast_find_char_class(((Np.id == id_math and -1) or'jcharbdd'), Nq.met))
+ local qm = Nq.met
+ return new_jfm_glue(qm, Nq.class,
+ fast_find_char_class(((Np.id == id_math and -1) or'jcharbdd'), qm))
else return nil
end
end
-- (anything) .. jachar
-local function handle_np_jachar()
- if Nq.id==id_jglyph or ((Nq.id==id_pbox or Nq.id==id_pbox_w) and Nq.met) then
- local g = lineend_fix(calc_ja_ja_glue() or get_kanjiskip()) -- M->K
- handle_penalty_normal(Nq.post, Np.pre, g); real_insert(Nq.lend, g)
- elseif Nq.met then -- Nq.id==id_hlist
+local function handle_np_jachar(mode)
+ local qid = Nq.id
+ if qid==id_jglyph or ((qid==id_pbox or qid==id_pbox_w) and Nq.met) then
+ local g = calc_ja_ja_glue() or get_kanjiskip() -- M->K
+ handle_penalty_normal(Nq.post, Np.pre, g); real_insert(g)
+ elseif Nq.met then -- qid==id_hlist
local g = get_OA_skip() or get_kanjiskip() -- O_A->K
- handle_penalty_normal(0, Np.pre, g); real_insert(0, g)
+ handle_penalty_normal(0, Np.pre, g); real_insert(g)
elseif Nq.pre then
local g = get_OA_skip() or get_xkanjiskip(Np) -- O_A->X
- if Nq.id==id_hlist then Nq.post = 0 end
- handle_penalty_normal(Nq.post, Np.pre, g); real_insert(0, g)
+ handle_penalty_normal((qid==id_hlist and 0 or Nq.post), Np.pre, g); real_insert(g)
else
local g = get_OA_skip() -- O_A
- if Nq.id==id_glue then handle_penalty_normal(0, Np.pre, g)
- elseif Nq.id==id_kern then handle_penalty_suppress(0, Np.pre, g)
+ if qid==id_glue then handle_penalty_normal(0, Np.pre, g)
+ elseif qid==id_kern then handle_penalty_suppress(0, Np.pre, g)
else handle_penalty_always(0, Np.pre, g)
end
- real_insert(0, g)
+ real_insert(g)
end
- -- \jcharwidowpenalty 挿入予定箇所更新
- if mode and ltjs.get_penalty_table('kcat', Np.char, 0, box_stack_level)%2~=1 then
- widow_Np.first = Np.first;
- local Bpr = widow_Bp; widow_Bp = Bp; Bp = Bpr
+ if mode and Np.kcat%2~=1 then
+ widow_Np.first, widow_Bp, Bp = Np.first, Bp, widow_Bp
end
end
+
-- jachar .. (anything)
local function handle_nq_jachar()
if Np.pre then
- if Np.id==id_hlist then Np.pre = 0 end
- local g = lineend_fix(get_OB_skip() or get_xkanjiskip(Nq)) -- O_B->X
- handle_penalty_normal(Nq.post, Np.pre, g); real_insert(Nq.lend, g)
+ local g = get_OB_skip() or get_xkanjiskip(Nq) -- O_B->X
+ handle_penalty_normal(Nq.post, (Np.id==id_hlist and 0 or Np.pre), g); real_insert(g)
else
- local g = lineend_fix(get_OB_skip()) -- O_B
+ local g = get_OB_skip() -- O_B
if Np.id==id_glue then handle_penalty_normal(Nq.post, 0, g)
elseif Np.id==id_kern then handle_penalty_suppress(Nq.post, 0, g)
else handle_penalty_always(Nq.post, 0, g)
end
- real_insert(Nq.lend, g)
+ real_insert(g)
end
end
-- (anything) .. (和文文字で始まる hlist)
local function handle_np_ja_hlist()
- if Nq.id==id_jglyph or ((Nq.id==id_pbox or Nq.id == id_pbox_w) and Nq.met) then
- local g = lineend_fix(get_OB_skip() or get_kanjiskip()) -- O_B->K
- handle_penalty_normal(Nq.post, 0, g); real_insert(Nq.lend, g)
+ local qid = Nq.id
+ if qid==id_jglyph or ((qid==id_pbox or Nq.id == id_pbox_w) and Nq.met) then
+ local g = get_OB_skip() or get_kanjiskip() -- O_B->K
+ handle_penalty_normal(Nq.post, 0, g); real_insert(g)
elseif Nq.met then -- Nq.id==id_hlist
local g = get_kanjiskip() -- K
- handle_penalty_suppress(0, 0, g); real_insert(0, g)
+ handle_penalty_suppress(0, 0, g); real_insert(g)
elseif Nq.pre then
local g = get_xkanjiskip(Np) -- X
- handle_penalty_suppress(0, 0, g); real_insert(0, g)
+ handle_penalty_suppress(0, 0, g); real_insert(g)
end
end
local function handle_nq_ja_hlist()
if Np.pre then
local g = get_xkanjiskip(Nq) -- X
- handle_penalty_suppress(0, 0, g); real_insert(0, g)
+ handle_penalty_suppress(0, 0, g); real_insert(g)
end
end
+
-- Nq が前側のクラスタとなることによる修正
-local function adjust_nq()
- if Nq.id==id_glyph then after_alchar(Nq)
- elseif Nq.id==id_hlist or Nq.id==id_pbox or Nq.id==id_disc then after_hlist(Nq)
- elseif Nq.id == id_pbox_w then
- luatexbase.call_callback("luatexja.jfmglue.whatsit_after",
- false, Nq, Np, box_stack_level)
+do
+ local adjust_nq_aux = {
+ [id_glyph] = function()
+ local x = Nq.nuc
+ return set_np_xspc_alchar(Nq, x.char,x, 2)
+ end, -- after_alchar(Nq)
+ [id_hlist] = function() after_hlist(Nq) end,
+ [id_pbox] = function() after_hlist(Nq) end,
+ [id_disc] = function() after_hlist(Nq) end,
+ [id_pbox_w] = function()
+ luatexbase.call_callback("luatexja.jfmglue.whatsit_after",
+ false, Nq, Np)
+ end,
+ }
+
+ function adjust_nq()
+ local x = adjust_nq_aux[Nq.id]
+ if x then x() end
end
end
+
-------------------- 開始・終了時の処理
-- リスト末尾の処理
-local function handle_list_tail()
+local JWP = luatexja.stack_table_index.JWP
+local function handle_list_tail(mode)
adjust_nq(); Np = Nq
if mode then
- -- the current list is to be line-breaked:
- if Np.id == id_jglyph or (Np.id==id_pbox and Np.met) then
- if Np.lend~=0 then
- g = node.new(id_kern); g.subtype = 0; g.kern = Np.lend
- copy_attr(g, Np.nuc); set_attr(g, attr_icflag, BOXBDD)
- node.insert_after(head, Np.last, g)
- end
- end
+ -- the current list is to be line-breaked.
-- Insert \jcharwidowpenalty
- Bp = widow_Bp; Np = widow_Np; Nq.lend = 0
+ Bp = widow_Bp; Np = widow_Np
if Np.first then
handle_penalty_normal(0,
- ltjs.get_penalty_table('jwp', 0, 0, box_stack_level))
+ table_current_stack[JWP] or 0)
end
else
-- the current list is the contents of a hbox
- if Np.id == id_jglyph or (Np.id==id_pbox and Np.met) then
- local g = new_jfm_glue(Np, Np.class, fast_find_char_class('boxbdd',Np.met))
+ local npi, pm = Np.id, Np.met
+ if npi == id_jglyph or (npi==id_pbox and pm) then
+ local g = new_jfm_glue(pm, Np.class, fast_find_char_class('boxbdd', pm))
if g then
set_attr(g, attr_icflag, BOXBDD)
head = node.insert_after(head, Np.last, g)
end
-- リスト先頭の処理
-local function handle_list_head()
- if Np.id == id_jglyph or (Np.id==id_pbox and Np.met) then
+local function handle_list_head(par_indented)
+ local npi, pm = Np.id, Np.met
+ if npi == id_jglyph or (npi==id_pbox and pm) then
if not ihb_flag then
- local g
- if par_indented then
- g = new_jfm_glue(Np, fast_find_char_class('parbdd',Np.met), Np.class)
- else
- g = new_jfm_glue(Np, fast_find_char_class('boxbdd',Np.met), Np.class)
- end
+ local g = new_jfm_glue(pm, fast_find_char_class(par_indented, pm), Np.class)
if g then
set_attr(g, attr_icflag, BOXBDD)
if g.id==id_glue and #Bp==0 then
- local h = node.new(id_penalty); copy_attr(h, Np.nuc)
+ local h = node_new(id_penalty); --copy_attr(h, Np.nuc)
h.penalty = 10000; set_attr(h, attr_icflag, BOXBDD)
end
- head = node.insert_before(head, Np.first, g)
+ head = insert_before(head, Np.first, g)
end
end
end
end
-- initialize
-local function init_var()
- uniq_id = uniq_id +1
- if uniq_id == 0x7FFFFFF then uniq_id = 0 end
- lp = head; Bp = {}; widow_Bp = {}; widow_Np = {first = nil}
- par_indented = false
- box_stack_level = ltjp.box_stack_level
- kanji_skip=skip_table_to_spec('kanjiskip')
- xkanji_skip=skip_table_to_spec('xkanjiskip')
+-- return value: (the initial cursor lp), (last node)
+local function init_var(mode)
+ -- 1073741823: max_dimen
+ Bp, widow_Bp, widow_Np = {}, {}, {first = nil}
+ table_current_stack = ltjs.table_current_stack
+
+ kanji_skip = node_new(id_glue)
+ kanji_skip.spec = skip_table_to_spec('kanjiskip')
+ set_attr(kanji_skip, attr_icflag, KANJI_SKIP)
+ get_kanjiskip = (kanji_skip.spec.width == 1073741823)
+ and get_kanjiskip_jfm or get_kanjiskip_normal
+
+ xkanji_skip = node_new(id_glue)
+ xkanji_skip.spec = skip_table_to_spec('xkanjiskip')
+ set_attr(xkanji_skip, attr_icflag, XKANJI_SKIP)
+ get_xkanjiskip = (xkanji_skip.spec.width == 1073741823)
+ and get_xkanjiskip_jfm or get_xkanjiskip_normal
+
Np = {
auto_kspc=nil, auto_xspc=nil, char=nil, class=nil,
- first=nil, id=nil, last=nil, lend=0, met=nil, nuc=nil,
- post=nil, pre=nil, var=nil, xspc_after=nil, xspc_before=nil,
+ first=nil, id=nil, last=nil, met=nil, nuc=nil,
+ post=nil, pre=nil, xspc=nil,
}
Nq = {
auto_kspc=nil, auto_xspc=nil, char=nil, class=nil,
- first=nil, id=nil, last=nil, lend=0, met=nil, nuc=nil,
- post=nil, pre=nil, var=nil, xspc_after=nil, xspc_before=nil,
+ first=nil, id=nil, last=nil, met=nil, nuc=nil,
+ post=nil, pre=nil, xspc=nil,
}
if mode then
-- the current list is to be line-breaked:
-- hbox from \parindent is skipped.
- while lp and ((lp.id==id_whatsit and lp.subtype~=sid_user)
- or ((lp.id==id_hlist) and (lp.subtype==3))) do
- if (lp.id==id_hlist) and (lp.subtype==3) then par_indented = true end
- lp=node.next(lp) end
- last=node.tail(head)
+ local lp, par_indented, lpi, lps = head, 'boxbdd', head.id, head.subtype
+ while lp and ((lpi==id_whatsit and lps~=sid_user)
+ or ((lpi==id_hlist) and (lps==3))) do
+ if (lpi==id_hlist) and (lps==3) then par_indented = 'parbdd' end
+ lp=node_next(lp); lpi, lps = lp.id, lp.subtype end
+ return lp, node.tail(head), par_indented
else
-- the current list is the contents of a hbox:
- -- insert a sentinelEG
- last=node.tail(head); local g = node.new(id_kern)
- node.insert_after(head, last, g); last = g
+ -- insert a sentinel
+ local g = node_new(id_kern)
+ node.insert_after(head, node.tail(head), g); last = g
+ return head, g, 'boxbdd'
end
end
-local function cleanup()
+local function cleanup(mode, last)
-- adjust attr_icflag for avoiding error
- tex.attribute[attr_icflag] = -(0x7FFFFFFF)
+ tex.setattribute('global', attr_icflag, 0)
node.free(kanji_skip); node.free(xkanji_skip)
if mode then
- local h = node.next(head)
+ local h = node_next(head)
if h.id == id_penalty and h.penalty == 10000 then
h = h.next
if h.id == id_glue and h.subtype == 15 and not h.next then
return head
else
head = node.remove(head, last); node.free(last);-- remove the sentinel
+ set_attr(head, attr_icflag,
+ get_attr_icflag(head) + PROCESSED_BEGIN_FLAG);
return head
end
end
-------------------- 外部から呼ばれる関数
-- main interface
-function main(ahead, amode)
+function main(ahead, mode)
if not ahead then return ahead end
- head = ahead; mode = amode; init_var(); calc_np()
+ head = ahead;
+ local lp, last, par_indented = init_var(mode);
+ lp = calc_np(lp, last)
if Np then
- extract_np(); handle_list_head()
+ extract_np(); handle_list_head(par_indented)
else
- return cleanup()
+ return cleanup(mode, last)
end
- calc_np()
+ lp = calc_np(lp, last)
while Np do
- extract_np(); adjust_nq()
+ extract_np();
+ adjust_nq();
+ local pid, pm = Np.id, Np.met
-- 挿入部
- if Np.id == id_jglyph then
- handle_np_jachar()
- elseif Np.met then
- if Np.id==id_hlist then handle_np_ja_hlist()
+ if pid == id_jglyph then
+ handle_np_jachar(mode)
+ elseif pm then
+ if pid==id_hlist then handle_np_ja_hlist()
else handle_np_jachar() end
elseif Nq.met then
if Nq.id==id_hlist then handle_nq_ja_hlist()
else handle_nq_jachar() end
end
- calc_np()
+ lp = calc_np(lp, last)
end
- handle_list_tail()
- return cleanup()
+ handle_list_tail(mode)
+ return cleanup(mode, last)
end
-- \inhibitglue
function create_inhibitglue_node()
- local tn = node.new(id_whatsit, sid_user)
+ local tn = node_new(id_whatsit, sid_user)
tn.user_id=30111; tn.type=100; tn.value=1
node.write(tn)
end
-- Node for indicating beginning of a paragraph
-- (for ltjsclasses)
function create_beginpar_node()
- local tn = node.new(id_whatsit, sid_user)
+ local tn = node_new(id_whatsit, sid_user)
tn.user_id=30114; tn.type=100; tn.value=1
node.write(tn)
end
-local function whatsit_callback(Np, lp, Nq, bsl)
+do
+
+local function whatsit_callback(Np, lp, Nq)
if Np and Np.nuc then return Np
elseif Np and lp.user_id == 30114 then
Np.first = lp; Np.nuc = lp; Np.last = lp
Np.char = 'parbdd'
Np.met = nil
Np.pre = 0; Np.post = 0
- Np.xspc_before = false
- Np.xspc_after = false
+ Np.xspc = 0
Np.auto_xspc = false
return Np
end
end
-local function whatsit_after_callback(s, Nq, Np, bsl)
+
+
+local function whatsit_after_callback(s, Nq, Np)
if not s and Nq.nuc.user_id == 30114 then
local x, y = node.prev(Nq.nuc), Nq.nuc
Nq.first, Nq.nuc, Nq.last = x, x, x
luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback,
"luatexja.beginpar.np_info_after", 1)
+end
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