local ltjs_get_penalty_table = ltjs.get_penalty_table
local ltjs_get_skip_table = ltjs.get_skip_table
+local ltjf_find_char_class = ltjf.find_char_class
local ltjf_font_metric_table = ltjf.font_metric_table
local ltjf_metrics = ltjf.metrics
local box_stack_level
-------------------- Helper functions
-- This function is called only for acquiring `special' characters.
-local function find_char_class(c,m)
+local function fast_find_char_class(c,m)
return m.chars[c] or 0
end
check_next_ickern()
end
+local calc_np_auxtable = {
+ [id_glyph] = function()
+ Np.first = lp
+ if lp.font == has_attr(lp, attr_curjfnt) then
+ Np.id = id_jglyph
+ else
+ Np.id = id_glyph
+ end
+ Np.first = lp; Np.nuc = lp; set_attr_icflag_processed(lp)
+ lp = node_next(lp); check_next_ickern(); return true
+ end,
+ [id_hlist] = function()
+ Np.first = 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
+ end,
+ [id_vlist] = function()
+ Np.first = 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 = 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
+ 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 = 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()
+ if lp.subtype==sid_user and lp.user_id==30111 then
+ local lq = node_next(lp)
+ head = node_remove(head, lp); node_free(lp); lp = lq; ihb_flag = true
+ else
+ set_attr_icflag_processed(lp); lp = node_next(lp)
+ end
+ return false
+ end,
+ [id_math] = function()
+ Np.first = lp; Np.nuc = lp;
+ set_attr_icflag_processed(lp); lp = node_next(lp)
+ while lp.id~=id_math do
+ 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
+ end,
+ [id_glue] = function()
+ Np.first = lp; Np.nuc = lp; set_attr_icflag_processed(lp);
+ Np.last = lp; Np.id = id_glue; lp = node_next(lp); return true
+ end,
+ [id_kern] = function()
+ Np.first = 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();
+ else
+ Np.id = id_kern; set_attr_icflag_processed(lp);
+ Np.last = lp; lp = 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
+ end,
+ [13] = function()
+ Np.first = 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 lpi, lpa, Nr
Nq = Np; Np = Nr
for k in pairs(Bp) do Bp[k] = nil end
ihb_flag = false
- while true do
- lpi = lp.id; lpa = has_attr(lp, attr_icflag) or 0
- if lp==last then Np = nil; return
- elseif lpa>=PACKED then
+ while lp ~= last do
+ lpa = has_attr(lp, attr_icflag) or 0
+ if lpa>=PACKED then
if lpa == BOXBDD then
local lq = node_next(lp)
head = node_remove(head, lp); node_free(lp); lp = lq
else calc_np_pbox(); return end -- id_pbox
- elseif lpi == id_ins or lpi == id_mark or lpi == id_adjust then
- set_attr_icflag_processed(lp); lp = node_next(lp)
- elseif lpi == id_penalty then
- table_insert(Bp, lp); set_attr_icflag_processed(lp); lp = node_next(lp)
- elseif lpi == id_whatsit then
- if lp.subtype==sid_user and lp.user_id==30111 then
- local lq = node_next(lp)
- head = node_remove(head, lp); node_free(lp); lp = lq; ihb_flag = true
- else
- set_attr_icflag_processed(lp); lp = node_next(lp)
- end
- else -- a `cluster' is found
- Np.first = lp
- if lpi == id_glyph then -- id_[j]glyph
- 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
- elseif lpi == id_hlist then -- hlist
- Np.last = lp; Np.nuc = lp; set_attr_icflag_processed(lp)
- if lp.shift~=0 then Np.id = id_box_like
- else Np.id = lpi end
- lp = node_next(lp); return
- elseif lpi == id_vlist or lpi == id_rule then -- id_box_like
- Np.nuc = lp; Np.last = lp; Np.id = id_box_like; break
- elseif lpi == id_math then -- id_math
- Np.nuc = lp; lp = node_next(lp)
- while lp.id~=id_math do
- set_attr_icflag_processed(lp); lp = node_next(lp)
- end; break
- elseif lpi == id_kern and lp.subtype==2 then -- id_kern
- 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(); return
- else -- id_disc, id_glue, id_kern
- Np.nuc = lp; break
- end
- end
+ elseif calc_np_auxtable[lp.id]() then return end
end
- set_attr_icflag_processed(lp); Np.last = lp; Np.id = lpi; lp = node_next(lp)
+ Np = nil; return
end
-- extract informations from Np
-- "Np is not a character" otherwise.
-- 和文文字のデータを取得
-local function set_np_xspc_jachar(c,x)
- Np.class = has_attr(x, attr_jchar_class)
- Np.char = c
+local function set_np_xspc_jachar(x)
local z = ltjf_font_metric_table[x.font]
+ local c = x.char
+ local cls = ltjf_find_char_class(c, z)
+ local m = ltjf_metrics[z.jfm]
+ set_attr(x, attr_jchar_class, cls)
+ Np.class = cls
+ Np.char = c
Np.size= z.size
- Np.met = ltjf_metrics[z.jfm]
+ Np.met = m
Np.var = z.var
Np.pre = ltjs_get_penalty_table('pre', c, 0, box_stack_level)
Np.post = ltjs_get_penalty_table('post', c, 0, box_stack_level)
- z = find_char_class('lineend', Np.met)
- local y = Np.met.size_cache[Np.size].char_type[Np.class]
+ z = fast_find_char_class('lineend', m)
+ local y = m.size_cache[Np.size].char_type[Np.class]
if y.kern and y.kern[z] then
Np.lend = y.kern[z]
else
Np.lend = 0
end
y = ltjs_get_penalty_table('xsp', c, 3, box_stack_level)
- Np.xspc_before = (y>=2)
- Np.xspc_after = (y%2==1)
+ Np.xspc_before = (y%2==1)
+ Np.xspc_after = (y>=2)
Np.auto_kspc = (has_attr(x, attr_autospc)==1)
Np.auto_xspc = (has_attr(x, attr_autoxspc)==1)
end
local function extract_np()
local x = Np.nuc
if Np.id == id_jglyph then
- set_np_xspc_jachar(x.char, x)
+ set_np_xspc_jachar(x)
elseif Np.id == id_glyph then
set_np_xspc_alchar(x.char, x, ligature_head)
elseif Np.id == id_hlist then
if check_box(x.head, nil) then
if first_char then
if first_char.font == has_attr(first_char, attr_curjfnt) then
- set_np_xspc_jachar(first_char.char,first_char)
+ set_np_xspc_jachar(first_char)
else
set_np_xspc_alchar(first_char.char,first_char, ligature_head)
end
if check_box(Np.first, node_next(Np.last)) then
if first_char then
if first_char.font == has_attr(first_char, attr_curjfnt) then
- set_np_xspc_jachar(first_char.char,first_char)
+ set_np_xspc_jachar(first_char)
else
set_np_xspc_alchar(first_char.char,first_char, ligature_head)
end
if check_box(x.replace, nil) then
if first_char then
if first_char.font == has_attr(first_char, attr_curjfnt) then
- set_np_xspc_jachar(first_char.char,first_char)
+ set_np_xspc_jachar(first_char)
else
set_np_xspc_alchar(first_char.char,first_char, ligature_head)
end
local function after_hlist()
if last_char then
if last_char.font == has_attr(last_char, attr_curjfnt) then
- set_np_xspc_jachar(last_char.char,last_char, ligature_after)
+ set_np_xspc_jachar(last_char, ligature_after)
else
set_np_xspc_alchar(last_char.char,last_char, ligature_after)
end
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[1] = p; set_attr(p, attr_icflag, KINSOKU)
+ table_insert(Bp, p); set_attr(p, attr_icflag, KINSOKU)
end
else for i, v in pairs(Bp) do add_penalty(v,a) end
end
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[1] = p; set_attr(p, attr_icflag, KINSOKU)
+ table_insert(Bp, p); set_attr(p, attr_icflag, KINSOKU)
end
else for i, v in pairs(Bp) do add_penalty(v,a) end
end
if g and g.id==id_glue then
local p = node_new(id_penalty)
p.penalty = 10000; head = node_insert_before(head, Np.first, p)
- Bp[1] = p; set_attr(p, attr_icflag, KINSOKU)
+ table_insert(Bp, p); set_attr(p, attr_icflag, KINSOKU)
end
else for i, v in pairs(Bp) do add_penalty(v,a) end
end
return new_jfm_glue(Nq, Nq.class, Np.class)
else
local g = new_jfm_glue(Nq, Nq.class,
- find_char_class('diffmet',Nq.met))
- local h = new_jfm_glue(Np, find_char_class('diffmet',Np.met),
+ fast_find_char_class('diffmet',Nq.met))
+ local h = new_jfm_glue(Np, fast_find_char_class('diffmet',Np.met),
Np.class)
return calc_ja_ja_aux(g,h)
end
if not ihb_flag then
local c
if Nq.id == id_math then c = -1 else c = 'jcharbdd' end
- return new_jfm_glue(Np, find_char_class(c,Np.met), Np.class)
+ return new_jfm_glue(Np, fast_find_char_class(c,Np.met), Np.class)
else return nil
end
end
if not ihb_flag then
local c
if Np.id == id_math then c = -1 else c = 'jcharbdd' end
- return new_jfm_glue(Nq, Nq.class, find_char_class(c,Nq.met))
+ return new_jfm_glue(Nq, Nq.class, fast_find_char_class(c,Nq.met))
else return nil
end
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, find_char_class('boxbdd',Np.met))
+ local g = new_jfm_glue(Np, Np.class, fast_find_char_class('boxbdd',Np.met))
if g then
set_attr(g, attr_icflag, BOXBDD)
head = node_insert_after(head, Np.last, g)
if not ihb_flag then
local g
if par_indented then
- g = new_jfm_glue(Np, find_char_class('parbdd',Np.met), Np.class)
+ g = new_jfm_glue(Np, fast_find_char_class('parbdd',Np.met), Np.class)
else
- g = new_jfm_glue(Np, find_char_class('boxbdd',Np.met), Np.class)
+ g = new_jfm_glue(Np, fast_find_char_class('boxbdd',Np.met), Np.class)
end
if g then
set_attr(g, attr_icflag, BOXBDD)
last=node.tail(head)
else
-- the current list is the contents of a hbox:
- -- insert a sentinel
+ -- insert a sentinelEG
last=node.tail(head); local g = node_new(id_kern)
node_insert_after(head, last, g); last = g
end
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