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 pairs = pairs
+
+local Dnode = node.direct or node
-local Dnode = node -- node.direct or node
+local nullfunc = function(n) return n end
+local to_node = (Dnode ~= node) and Dnode.tonode or nullfunc
+local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc
-local setfield = (Dnode == node.direct) and Dnode.setfield or function(n, i, c) n[i] = c end
-local getfield = (Dnode == node.direct) and Dnode.getfield or function(n, i) return n[i] end
-local getid = (Dnode == node.direct) and Dnode.getid or function(n) return n.id end
-local getfont = (Dnode == node.direct) and Dnode.getfont or function(n) return n.font end
-local getlist = (Dnode == node.direct) and Dnode.getlist or function(n) return n.head end
-local getchar = (Dnode == node.direct) and Dnode.getlist or function(n) return n.char end
-local getsubtype = (Dnode == node.direct) and Dnode.getlist or function(n) return n.subtype end
+local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end
+local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] 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 getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end
+local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
+local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end
local has_attr = Dnode.has_attribute
local set_attr = Dnode.set_attribute
local insert_before = Dnode.insert_before
local insert_after = Dnode.insert_after
-local node_next = Dnode.next
+local node_next = Dnode.getnext
local round = tex.round
local ltjf_font_metric_table = ltjf.font_metric_table
local ltjf_find_char_class = ltjf.find_char_class
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
- zero_glue.spec = spec_zero_glue
+spec_zero_glue = to_node(node_new(id_glue_spec))
+ -- must be public, since mentioned from other sources
+local spec_zero_glue = to_direct(spec_zero_glue)
+setfield(spec_zero_glue, 'width', 0)
+setfield(spec_zero_glue, 'stretch', 0)
+setfield(spec_zero_glue, 'shrink', 0)
+setfield(spec_zero_glue, 'stretch_order', 0)
+setfield(spec_zero_glue, 'shrink_order', 0)
+setfield(zero_glue, 'spec', spec_zero_glue)
local function skip_table_to_spec(n)
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
+ setfield(g, 'width', st.width)
+ setfield(g, 'stretch', st.stretch)
+ setfield(g, 'shrink', st.shrink)
+ setfield(g, 'stretch_order', st.stretch_order)
+ setfield(g, 'shrink_order', st.shrink_order)
return g
end
-- penalty 値の計算
local function add_penalty(p,e)
- local pp = p.penalty
+ local pp = getfield(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
pp = pp + e
- if pp>=10000 then p.penalty = 10000
- elseif pp<=-10000 then p.penalty = -10000
- else p.penalty = pp end
+ if pp>=10000 then setfield(p, 'penalty', 10000)
+ elseif pp<=-10000 then setfield(p, 'penalty', -10000)
+ else setfield(p, 'penalty', pp) end
end
return
end
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
-function math.two_paverage(a,b) return (a+b)*0.5 end
+function math.two_paverage(a,b) return (a+b)/2 end
function math.two_pleft(a,b) return a end
function math.two_pright(a,b) return b end
return true
end
while p and p~=box_end do
- local pid = p.id
- 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
+ local pid = getid(p)
+ if pid==id_kern and getsubtype(p)==2 then
+ p = node_next(node_next(node_next(p))); pid = getid(p) -- p must be glyph_node
end
if pid==id_glyph then
repeat
if (not p) or p==box_end then
return found_visible_node
end
- until p.id~=id_glyph
- pid = p.id -- p must be non-nil
+ until getid(p)~=id_glyph
+ pid = getid(p) -- p must be non-nil
end
if pid==id_kern then
if get_attr_icflag(p)==IC_PROCESSED then
-- do nothing
- elseif p.subtype==2 then
+ elseif getsubtype(p)==2 then
p = node_next(node_next(p));
-- Note that another node_next will be executed outside this if-statement.
else
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
+ first_char = getlist(p); find_first_char = false
end
- last_char = p.head; found_visible_node = true
+ last_char = getlist(p); found_visible_node = true
else
- if p.shift==0 then
- if check_box(p.head, nil) then found_visible_node = true end
+ if getfield(p, 'shift')==0 then
+ if check_box(getlist(p), nil) then found_visible_node = true end
else if find_first_char then
find_first_char = false
else
if check_box(box_ptr, box_end) then
local first_char = first_char
if first_char then
- if first_char.id==id_glyph then
- if first_char.font == (has_attr(first_char, attr_curjfnt) or -1) then
+ if getid(first_char)==id_glyph then
+ if getfont(first_char) == (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, 1)
+ set_np_xspc_alchar(Nx, getchar(first_char),first_char, 1)
end
else -- math_node
set_np_xspc_alchar(Nx, -1,first_char)
end
local function check_next_ickern(lp)
- if lp.id == id_kern and ITALIC == get_attr_icflag(lp) then
+ if getid(lp) == id_kern and ITALIC == get_attr_icflag(lp) then
set_attr(lp, attr_icflag, IC_PROCESSED)
Np.last = lp; return node_next(lp)
else
local calc_np_auxtable = {
[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,
+ Np.first, Np.nuc = (Np.first or lp), lp;
+ Np.id = (getfont(lp) == (has_attr(lp, attr_curjfnt) or -1))
+ and id_jglyph or id_glyph
+ return true, check_next_ickern(node_next(lp));
+ end,
[id_hlist] = function(lp)
- Np.first = Np.first or lp; Np.last = lp; Np.nuc = lp;
- 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,
+ Np.first = Np.first or lp; Np.last = lp; Np.nuc = lp;
+ set_attr(lp, attr_icflag, PROCESSED)
+ Np.id = (getfield(lp, 'shift')~=0) and id_box_like or id_hlist
+ return true, node_next(lp)
+ end,
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,
+ Np.first = Np.first or lp; Np.nuc = lp; Np.last = lp;
+ Np.id = id_box_like; set_attr(lp, attr_icflag, PROCESSED)
+ return true, node_next(lp);
+ end,
skip = function(lp)
- set_attr(lp, attr_icflag, PROCESSED)
- -- set_attr_icflag_processed(lp);
- return false, node_next(lp)
- end,
+ set_attr(lp, attr_icflag, PROCESSED)
+ return false, node_next(lp)
+ end,
[id_whatsit] = function(lp)
- if lp.subtype==sid_user then
- if lp.user_id==luatexja.userid_table.IHB then
- local lq = node_next(lp);
- head = node_remove(head, lp); node_free(lp); ihb_flag = true
- return false, lq;
- else
- 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, node_next(lp)
- else
- return false, node_next(lp)
- end
- end
- else
- -- we do special treatment for these whatsit nodes.
- 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
- Np.first, Nq.last = nil, lp;
- end
- set_attr(lp, attr_icflag, PROCESSED)
- -- set_attr_icflag_processed(lp);
- return false, node_next(lp)
- end
- end,
+ local lps = getsubtype(lp)
+ if lps==sid_user then
+ if getsubtype(lp, 'user_id')==luatexja.userid_table.IHB then
+ local lq = node_next(lp);
+ head = node_remove(head, lp); node_free(lp); ihb_flag = true
+ return false, lq;
+ else
+ set_attr(lp, attr_icflag, PROCESSED)
+ 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, node_next(lp)
+ else
+ return false, node_next(lp)
+ end
+ end
+ else
+ -- we do special treatment for these whatsit nodes.
+ if lps == sid_start_link or lps == sid_start_thread then
+ Np.first = lp
+ elseif lps == sid_end_link or lps == sid_end_thread then
+ Np.first, Nq.last = nil, lp;
+ end
+ set_attr(lp, attr_icflag, PROCESSED)
+ return false, node_next(lp)
+ end
+ end,
[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_end_of_math(lp)
- set_attr(lp, attr_icflag, PROCESSED) -- set_attr_icflag_processed(lp);
- Np.last, Np.id = lp, id_math;
- return true, node_next(lp);
- end,
+ Np.first, Np.nuc = (Np.first or lp), lp;
+ set_attr(lp, attr_icflag, PROCESSED)
+ lp = node_end_of_math(lp)
+ set_attr(lp, attr_icflag, PROCESSED)
+ Np.last, Np.id = lp, id_math;
+ return true, node_next(lp);
+ end,
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,
+ Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp;
+ Np.id = getid(lp); set_attr(lp, attr_icflag, PROCESSED)
+ return true, node_next(lp)
+ end,
[id_kern] = function(lp)
- Np.first = Np.first or lp
- if lp.subtype==2 then
- 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(lp, attr_icflag, PROCESSED); -- set_attr_icflag_processed(lp);
- Np.last = lp; return true, node_next(lp)
- end
- end,
+ Np.first = Np.first or lp
+ if getsubtype(lp)==2 then
+ 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 = (getfont(lp) == (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(lp, attr_icflag, PROCESSED)
+ Np.last = lp; return true, node_next(lp)
+ end
+ end,
[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,
+ Bp[#Bp+1] = lp; set_attr(lp, attr_icflag, PROCESSED)
+ return false, node_next(lp)
+ end,
}
calc_np_auxtable[id_vlist] = calc_np_auxtable.box_like
calc_np_auxtable[id_rule] = calc_np_auxtable.box_like
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)
else return calc_np_pbox(lp, last)
end -- id_pbox
else
- k, lp = calc_np_auxtable[lp.id](lp)
+ k, lp = calc_np_auxtable[getid(lp)](lp)
if k then return lp end
end
end
-- 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.
+local after_hlist, after_alchar, extract_np
do
local PRE = luatexja.stack_table_index.PRE
local POST = luatexja.stack_table_index.POST
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)
+ local m = ltjf_font_metric_table[getfont(x)]
+ local cls, c = slow_find_char_class(has_attr(x, attr_orig_char), m, getchar(x))
Nx.met, Nx.char = m, c; Nx.class = cls;
if cls~=0 then set_attr(x, attr_jchar_class, cls) end
Nx.pre = table_current_stack[PRE + c] or 0
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
+ local f = (lig ==1) and nullfunc or node_tail
+ local xc, xs = getfield(x, 'components'), getsubtype(x)
+ while xc and xs and xs%4>=2 do
+ x = f(xc); xc, xs = getfield(x, 'components'), getsubtype(x)
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'
+ c = getchar(x)
+ 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
Nx.pre, Nx.post, Nx.char = 0, 0, -1
Nx.xspc = table_current_stack[XSP - 1] or 3
local set_np_xspc_alchar = set_np_xspc_alchar
-- Np の情報取得メインルーチン
- function extract_np()
+ extract_np = function ()
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, 1)
- elseif i == id_hlist then Np.last_char = check_box_high(Np, x.head, nil)
+ elseif i == id_glyph then return set_np_xspc_alchar(Np, getchar(x), x, 1)
+ elseif i == id_hlist then Np.last_char = check_box_high(Np, getlist(x), 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_disc then Np.last_char = check_box_high(Np, getfield(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)
+ after_hlist = function (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
+ if getid(s)==id_glyph then
+ if getfont(s) == (has_attr(s, attr_curjfnt) or -1) then
set_np_xspc_jachar(Nx, s)
else
- set_np_xspc_alchar(Nx, s.char, s, 2)
+ set_np_xspc_alchar(Nx, getchar(s), s, 2)
end
else
set_np_xspc_alchar(Nx, -1, s)
end
end
- function after_alchar(Nx)
+ after_alchar = function (Nx)
local x = Nx.nuc
- return set_np_xspc_alchar(Nx, x.char,x, 2)
+ return set_np_xspc_alchar(Nx, getchar(x), x, 2)
end
end
-local after_hlist, after_alchar, extract_np = after_hlist, after_alchar, extract_np
-------------------- 最下層の処理
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)) then
+ if (a~=0 and not(g and getid(g)==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
+ setfield(p, 'penalty', a)
head = insert_before(head, Np.first, p)
Bp[1]=p;
set_attr(p, attr_icflag, KINSOKU)
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) then
+ if not (g and getid(g)==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
+ setfield(p, 'penalty', a)
head = insert_before(head, Np.first, p)
Bp[1]=p
set_attr(p, attr_icflag, KINSOKU)
local function handle_penalty_suppress(post, pre, g)
local a = (pre or 0) + (post or 0)
if #Bp == 0 then
- if g and g.id==id_glue then
+ if g and getid(g)==id_glue then
local p = node_new(id_penalty); --copy_attr(p, Nq.nuc)
- p.penalty = 10000; head = insert_before(head, Np.first, p)
+ setfield(p, 'penalty', 10000); head = insert_before(head, Np.first, p)
Bp[1]=p
set_attr(p, attr_icflag, KINSOKU)
end
local n
if g then
n,d = node_copy(g[2]), g[3];
- if g[1] then n.spec = node_copy(n.spec) end
+ if g[1] then setfield(n, 'spec', node_copy(getfield(n, 'spec'))) end
end
return n, d
end
return g
end
end
+
local function get_kanjiskip_jfm()
local g
if Np.auto_kspc or Nq.auto_kspc then
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
+ setfield(gx, 'stretch_order', 0); setfield(gx, 'shrink_order', 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]
+ setfield(gx, 'width', bk[1])
+ setfield(gx, 'stretch', bk[2])
+ setfield(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]))
+ setfield(gx, 'width', round(diffmet_rule(bk[1], ak[1])))
+ setfield(gx, 'stretch', round(diffmet_rule(bk[2], ak[2])))
+ setfield(gx, 'shrink', -round(diffmet_rule(-bk[3], -ak[3])))
end
- g.spec = gx
+ setfield(g, 'spec', gx)
else
g = node_copy(zero_glue)
end
return g
end
-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
- -- 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
+local calc_ja_ja_aux
+do
+ local bg_ag = 2*id_glue - id_glue
+ local bg_ak = 2*id_glue - id_kern
+ local bk_ag = 2*id_kern - id_glue
+ local bk_ak = 2*id_kern - id_kern
+
+ calc_ja_ja_aux = function (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); setfield(gb, 'kern', 0)
+ else return nil end
+ elseif not ga then
+ ga = node_new(id_kern); gsetfield(ga, 'kern', 0)
+ end
+
+ local k = 2*getid(gb) - getid(ga)
+ if k == bg_ag then
+ local bs, as = getfield(gb, 'spec'), getfield(ga, 'spec')
+ -- 両方とも glue．
+ local bd, ad = getfield(bs, 'width'), getfield(as, 'width')
+ setfield(bs, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad)))
+ bd, ad = getfield(bs, 'stretch'), getfield(as, 'stretch')
+ setfield(bs, 'stretch', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad)))
+ bd, ad = getfield(bs, 'shrink'), getfield(as, 'shrink')
+ setfield(bs, 'shrink', -round(diffmet_rule(-rbb*bd - rba*ad, -rab*bd - raa*ad)))
+ node_free(ga)
+ return gb
+ elseif k == bk_ak then
+ -- 両方とも kern．
+ local bd, ad = getfield(gb, 'kern'), getfield(ga, 'kern')
+ setfield(gb, 'kern', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad)))
+ node_free(ga)
+ return gb
+ elseif k == bk_ag then
+ local as = getfield(ga, 'spec')
+ -- gb: kern, ga: glue
+ local bd, ad = getfield(gb, 'kern'), getfield(as, 'width')
+ setfield(as, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad)))
+ ad = getfield(as, 'stretch')
+ setfield(bs, 'stretch', round(diffmet_rule(rba*ad, raa*ad)))
+ ad = getfield(as, 'shrink')
+ setfield(bs, 'shrink', -round(diffmet_rule(-rba*ad, -raa*ad)))
+ node_free(gb)
+ return ga
+ else
+ local bs = getfield(gb, 'spec')
+ -- gb: glue, ga: kern
+ local bd, ad = getfield(bs, 'width'), getfield(ga, 'kern')
+ setfield(bs, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad)))
+ bd = getfield(bs, 'stretch')
+ setfield(bs, 'stretch', round(diffmet_rule(rbb*bd, rab*bd)))
+ bd = getfield(bs, 'shrink')
+ setfield(bs, 'shrink', -round(diffmet_rule(-rbb*bd, -rab*bd)))
+ node_free(ga)
+ return gb
+ end
end
end
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))
+ slow_find_char_class(has_attr(npn, attr_orig_char),
+ qm, getchar(npn)))
local ga, da = new_jfm_glue(pm,
- slow_find_char_class(has_attr(nqn, attr_orig_char), pm, nqn.char),
+ slow_find_char_class(has_attr(nqn, attr_orig_char),
+ pm, getchar(nqn)),
Np.class)
return calc_ja_ja_aux(gb, ga, db, da);
end
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)
+ local f = node_copy(xkanji_skip)
+ return f
else
local g = node_copy(zero_glue)
set_attr(g, attr_icflag, XKANJI_SKIP)
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)
+ g = node_new(id_glue)
local gx = node_new(id_glue_spec);
- gx.stretch_order, gx.shrink_order = 0, 0
+ setfield(gx, 'stretch_order', 0); setfield(gx, 'shrink_order', 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
+ setfield(gx, 'width', bk[1])
+ setfield(gx, 'stretch', bk[2])
+ setfield(gx, 'shrink', bk[3])
+ setfield(g, 'spec', gx)
else
g = node_copy(zero_glue)
end
return g
end
-
-
-------------------- 隣接した「塊」間の処理
local function get_OA_skip()
local adjust_nq_aux = {
[id_glyph] = function()
local x = Nq.nuc
- return set_np_xspc_alchar(Nq, x.char,x, 2)
+ return set_np_xspc_alchar(Nq, getchar(x),x, 2)
end, -- after_alchar(Nq)
[id_hlist] = function() after_hlist(Nq) end,
[id_pbox] = function() after_hlist(Nq) 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)
- h.penalty = 10000; set_attr(h, attr_icflag, BOXBDD)
+ if getid(g)==id_glue and #Bp==0 then
+ local h = node_new(id_penalty)
+ setfield(h, 'penalty', 10000); set_attr(h, attr_icflag, BOXBDD)
end
head = insert_before(head, Np.first, g)
end
table_current_stack = ltjs.table_current_stack
kanji_skip = node_new(id_glue)
- kanji_skip.spec = skip_table_to_spec('kanjiskip')
+ setfield(kanji_skip, 'spec', skip_table_to_spec('kanjiskip'))
set_attr(kanji_skip, attr_icflag, KANJI_SKIP)
- get_kanjiskip = (kanji_skip.spec.width == 1073741823)
+ get_kanjiskip = (getfield(getfield(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')
+ setfield(xkanji_skip, 'spec', skip_table_to_spec('xkanjiskip'))
set_attr(xkanji_skip, attr_icflag, XKANJI_SKIP)
- get_xkanjiskip = (xkanji_skip.spec.width == 1073741823)
+ get_xkanjiskip = (getfield(getfield(xkanji_skip, 'spec'), 'width') == 1073741823)
and get_xkanjiskip_jfm or get_xkanjiskip_normal
Np = {
if mode then
-- the current list is to be line-breaked:
-- hbox from \parindent is skipped.
- local lp, par_indented, lpi, lps = head, 'boxbdd', head.id, head.subtype
+ local lp, par_indented, lpi, lps = head, 'boxbdd', getid(head), getsubtype(head)
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
+ lp=node_next(lp); lpi, lps = getid(lp), getsubtype(lp) end
return lp, node_tail(head), par_indented
else
-- the current list is the contents of a hbox:
node_free(kanji_skip); node_free(xkanji_skip)
if mode then
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
+ if getid(h) == id_penalty and getfield(h, 'penalty') == 10000 then
+ h = node_next(h)
+ if getid(h) == id_glue and getsubtype(h) == 15 and not node_next(h) then
return false
end
end
do
local IHB = luatexja.userid_table.IHB
local BPAR = luatexja.userid_table.BPAR
+ local node_prev = Dnode.getprev
+ local node_write = Dnode.write
-- \inhibitglue
function create_inhibitglue_node()
local tn = node_new(id_whatsit, sid_user)
- tn.user_id=IHB; tn.type=100; tn.value=1
- node.write(tn)
+ setfield(tn, 'user_id', IHB)
+ setfield(tn, 'type', 100)
+ setfield(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)
- tn.user_id=BPAR; tn.type=100; tn.value=1
- node.write(tn)
+ setfield(tn, 'user_id', BPAR)
+ setfield(tn, 'type', 100)
+ setfield(tn, 'value', 1)
+ node_write(tn)
end
local function whatsit_callback(Np, lp, Nq)
if Np and Np.nuc then return Np
- elseif Np and lp.user_id == BPAR then
+ elseif Np and getfield(lp, 'user_id') == BPAR then
Np.first = lp; Np.nuc = lp; Np.last = lp
Np.char = 'parbdd'
Np.met = nil
end
end
- local node_prev = Dnode.prev
- local function whatsit_after_callback(s, Nq, Np)
- if not s and Nq.nuc.user_id == BPAR then
+ local function whatsit_after_callback(s, Nq, Np)
+ if not s and getfield(Nq.nuc, 'user_id') == BPAR then
local x, y = node_prev(Nq.nuc), Nq.nuc
Nq.first, Nq.nuc, Nq.last = x, x, x
head = node_remove(head, y)
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