4 luatexja.load_module('jfont'); local ltjf = luatexja.jfont
5 luatexja.load_module('jfmglue'); local ltjj = luatexja.jfmglue
6 luatexja.load_module('stack'); local ltjs = luatexja.stack
7 luatexja.load_module('direction'); local ltjd = luatexja.direction
8 luatexja.load_module('lineskip'); local ltjl = luatexja.lineskip
9 luatexja.adjust = luatexja.adjust or {}
11 local to_node = node.direct.tonode
12 local to_direct = node.direct.todirect
14 local setfield = node.direct.setfield
15 local setglue = luatexja.setglue
16 local getfield = node.direct.getfield
17 local getlist = node.direct.getlist
18 local getid = node.direct.getid
19 local getfont = node.direct.getfont
20 local getsubtype = node.direct.getsubtype
22 local node_traverse_id = node.direct.traverse_id
23 local node_new = node.direct.new
24 local node_next = node.direct.getnext
25 local node_free = node.direct.free
26 local node_prev = node.direct.getprev
27 local node_tail = node.direct.tail
28 local has_attr = node.direct.has_attribute
29 local set_attr = node.direct.set_attribute
30 local insert_after = node.direct.insert_after
32 local id_glyph = node.id('glyph')
33 local id_kern = node.id('kern')
34 local id_hlist = node.id('hlist')
35 local id_glue = node.id('glue')
36 local id_whatsit = node.id('whatsit')
37 local id_penalty = node.id('penalty')
38 local attr_icflag = luatexbase.attributes['ltj@icflag']
39 local attr_jchar_class = luatexbase.attributes['ltj@charclass']
40 local lang_ja = luatexja.lang_ja
42 local ltjf_font_metric_table = ltjf.font_metric_table
43 local ipairs, pairs = ipairs, pairs
45 local PACKED = luatexja.icflag_table.PACKED
46 local LINEEND = luatexja.icflag_table.LINEEND
47 local FROM_JFM = luatexja.icflag_table.FROM_JFM
48 local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
49 local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
50 local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP
51 local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM
55 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
56 get_attr_icflag = function(p)
57 return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
61 local priority_num = { 0, 0 }
62 local at2pr = { {}, {} }
63 local at2pr_st, at2pr_sh = at2pr[1], at2pr[2]
65 local priority_table = {{},{}}
66 luatexja.adjust.priority_table = priority_table
68 local function cmp(a,b) return a[1]>b[1] end -- 大きいほうが先!
69 local function make_priority_table(glue_sign)
70 for i,_ in pairs(tmp) do tmp[i]=nil end
71 if glue_sign==2 then -- shrink
72 for i=0,63 do tmp[#tmp+1] = { (i%8)-4, FROM_JFM+i } end
74 for i=0,63 do tmp[#tmp+1] = { math.floor(i/8)-4, FROM_JFM+i } end
76 local pt = priority_table[glue_sign]
77 tmp[#tmp+1] = { pt[2]/10, XKANJI_SKIP }
78 tmp[#tmp+1] = { pt[2]/10, XKANJI_SKIP_JFM }
79 tmp[#tmp+1] = { pt[1]/10, KANJI_SKIP }
80 tmp[#tmp+1] = { pt[1]/10, KANJI_SKIP_JFM }
81 tmp[#tmp+1] = { pt[3]/10, -1 }
83 local a, m, n = at2pr[glue_sign], 10000000, 0
85 if tmp[i][1]<m then n,m = n+1,tmp[i][1] end
89 priority_num[glue_sign] = n
90 setmetatable(a, {__index = function () return o end })
92 luatexja.adjust.make_priority_table = make_priority_table
95 -- box 内で伸縮された glue の合計値を計算
97 local total_stsh = {{},{}}
98 local total_st, total_sh = total_stsh[1], total_stsh[2]
99 local get_total_stretched
101 local dimensions = node.direct.dimensions
102 function get_total_stretched(p)
103 -- return value: <補正値(sp)>
104 local ph = getlist(p)
105 if not ph then return 0 end
106 for i,_ in pairs(total_st) do total_st[i]=nil; total_sh[i]=nil end
107 for i=1,priority_num[1] do total_st[i]=0 end
108 for i=1,priority_num[2] do total_sh[i]=0 end
109 for i=0,4 do total_st[i*65536]=0; total_sh[i*65536]=0 end
110 for q in node_traverse_id(id_glue, ph) do
111 local a = getfield(q, 'stretch_order')
113 local b = at2pr_st[get_attr_icflag(q)];
114 total_st[b] = total_st[b]+getfield(q, 'stretch')
116 total_st[a*65536] = total_st[a]+getfield(q, 'stretch')
117 local a = getfield(q, 'shrink_order')
119 local b = at2pr_sh[get_attr_icflag(q)];
120 total_sh[b] = total_sh[b]+getfield(q, 'shrink')
122 total_sh[a*65536] = total_sh[a]+getfield(q, 'shrink')
124 for i=4,1,-1 do if total_st[i*65536]~=0 then total_st.order=i; break end; end
125 if not total_st.order then
126 total_st.order, total_st[-65536] = -1,0.1 -- dummy
128 for i=4,1,-1 do if total_sh[i*65536]~=0 then total_sh.order=i; break end; end
129 if not total_sh.order then
130 total_sh.order, total_sh[-65536] = -1,0.1 -- dummy
132 return getfield(p,'width') - dimensions(ph)
136 -- step 1: 行末に kern を挿入(句読点,中点用)
138 local ltjd_glyph_from_packed = ltjd.glyph_from_packed
139 local function aw_step1(p, total)
140 local head = getlist(p)
141 local x = node_tail(head); if not x then return total, false end
143 x = node_prev(x); if not x then return total, false end
144 local xi, xc = getid(x)
146 while xi==id_penalty do
147 x = node_prev(x); if not x then return total, false end
150 if (total>0 and total_st.order>0) or (total<0 and total_sh.order>0) then
151 -- 無限大のグルーで処理が行われているときは処理中止.
154 if xi == id_glyph and getfield(x, 'lang')==lang_ja then
157 elseif xi == id_hlist and get_attr_icflag(x) == PACKED then
159 xc = ltjd_glyph_from_packed(x)
160 while getid(xc) == id_whatsit do xc = node_next(xc) end -- これはなんのために?
162 return total, false-- それ以外は対象外.
164 local eadt = ltjf_font_metric_table[getfont(xc)]
165 .char_type[has_attr(xc, attr_jchar_class) or 0].end_adjust
169 local eadt_ratio = {}
170 for i, v in ipairs(eadt) do
173 eadt_ratio[i] = {i, t/total_st[65536*total_st.order], t, v}
175 eadt_ratio[i] = {i, t/total_sh[65536*total_sh.order], t, v}
178 table.sort(eadt_ratio,
181 local at, bt = abs(a[i]), abs(b[i])
182 if at~=bt then return at<bt end
186 if eadt[eadt_ratio[1][1]]~=0 then
187 local kn = node_new(id_kern, 1)
188 setfield(kn, 'kern', eadt[eadt_ratio[1][1]]); set_attr(kn, attr_icflag, LINEEND)
189 insert_after(head, x, kn)
190 return eadt_ratio[1][3], true
197 local min, max = math.min, math.max
198 local function aw_step1_last(p, total)
199 local head = getlist(p)
200 local x = node_tail(head); if not x then return total, false end
202 pf = node_prev(x); if not x then return total, false end
203 if getid(pf) ~= id_glue or getsubtype(pf) ~= 15 then return total, false end
204 x = node_prev(node_prev(pf)); xi = getid(x)
205 local xi, xc = getid(x)
206 if xi == id_glyph and getfield(x, 'lang')==lang_ja then
209 elseif xi == id_hlist and get_attr_icflag(x) == PACKED then
211 xc = ltjd_glyph_from_packed(x)
212 while getid(xc) == id_whatsit do xc = node_next(xc) end -- これはなんのために?
214 return total, false-- それ以外は対象外.
216 -- 続行条件1:無限の伸縮度を持つグルーは \parfillskipのみ
217 if total>0 and total_st.order>0 then
218 if total_st.order ~= getfield(pf, 'stretch_order') then return total, false end
219 if total_st[total_st.order*65536] ~= getfield(pf, 'stretch') then return total, false end
220 for i=total_st.order-1, 1, -1 do
221 if total_st[i*65536] ~= 0 then return total, false end
224 if total<0 and total_sh.order>0 then
225 if total_sh.order ~= getfield(pf, 'shrink_order') then return total, false end
226 if total_sh[total_sh.order*65536] ~= getfield(pf, 'shrink') then return total, false end
227 for i=total_sh.order-1, 1, -1 do
228 if total_sh[i*65536] ~= 0 then return total, false end
231 local eadt = ltjf_font_metric_table[getfont(xc)]
232 .char_type[has_attr(xc, attr_jchar_class) or 0].end_adjust
236 -- 続行条件2: min(eadt[1], 0)<= \parfillskip <= max(eadt[#eadt], 0)
237 local pfw = getfield(pf, 'width')
238 + (total>0 and getfield(pf, 'stretch') or -getfield(pf, 'shrink')) *getfield(p, 'glue_set')
239 if pfw<min(0,eadt[1]) or max(0,eadt[#eadt])<pfw then return total, false end
240 -- \parfillskip を 0 にする
241 total = total + getfield(pf, 'width')
242 total_st.order, total_sh.order = 0, 0
243 if getfield(pf, 'stretch_order')==0 then
244 local i = at2pr_st[-1]
245 total_st[0] = total_st[0] - getfield(pf, 'stretch')
246 total_st[i] = total_st[i] - getfield(pf, 'stretch')
247 total_st.order = (total_st[0]==0) and -1 or 0
249 if getfield(pf, 'shrink_order')==0 then
250 local i = at2pr_sh[-1]
251 total_sh[0] = total_sh[0] - getfield(pf, 'shrink')
252 total_sh[i] = total_sh[i] - getfield(pf, 'shrink')
253 total_sh.order = (total_sh[0]==0) and -1 or 0
255 setfield(pf, 'subtype', 1); setglue(pf)
256 local eadt_ratio = {}
257 for i, v in ipairs(eadt) do
260 eadt_ratio[i] = {i, t/total_st[65536*total_st.order], t, v}
262 eadt_ratio[i] = {i, t/total_sh[65536*total_sh.order], t, v}
265 table.sort(eadt_ratio,
268 local at, bt = abs(a[i]), abs(b[i])
269 if at~=bt then return at<bt end
273 if eadt[eadt_ratio[1][1]]~=0 then
274 local kn = node_new(id_kern, 1)
275 setfield(kn, 'kern', eadt[eadt_ratio[1][1]]); set_attr(kn, attr_icflag, LINEEND)
276 insert_after(head, x, kn)
277 return eadt_ratio[1][3], true
284 -- step 2: 行中の glue を変える
285 local aw_step2, aw_step2_dummy
287 local node_hpack = node.direct.hpack
288 local function repack(p)
289 local f = node_hpack(getlist(p), getfield(p, 'width'), 'exactly')
290 setfield(f, 'head', nil)
291 setfield(p, 'glue_set', getfield(f, 'glue_set'))
292 setfield(p, 'glue_order', getfield(f, 'glue_order'))
293 setfield(p, 'glue_sign', getfield(f, 'glue_sign'))
297 function aw_step2_dummy(p, _, added_flag)
298 if added_flag then return repack(p) end
301 local function clear_stretch(p, ind, ap, name)
302 for q in node_traverse_id(id_glue, getlist(p)) do
303 local f = ap[get_attr_icflag(q)]
305 setfield(q, name..'_order', 0)
311 local function set_stretch(p, after, before, ind, ap, name)
313 local ratio = after/before
314 for q in node_traverse_id(id_glue, getlist(p)) do
315 local f = ap[get_attr_icflag(q)]
316 if (f==ind) and getfield(q, name..'_order')==0 then
317 setfield(q, name, getfield(q, name)*ratio)
323 function aw_step2(p, total, added_flag)
324 local name = (total>0) and 'stretch' or 'shrink'
325 local id = (total>0) and 1 or 2
326 local res = total_stsh[id]
327 local pnum = priority_num[id]
328 if total==0 or res.order > 0 then
329 -- もともと伸縮の必要なしか,残りの伸縮量は無限大
330 if added_flag then return repack(p) end
334 if total <= res[i] then
337 clear_stretch(p, j, a, name)
339 set_stretch(p, total, res[i], i, a, name); break
341 total = total - res[i]
347 -- step 1': lineend=extended の場合(行分割時に考慮))
348 local insert_lineend_kern
350 local insert_before = node.direct.insert_before
351 local KINSOKU = luatexja.icflag_table.KINSOKU
352 function insert_lineend_kern(head, nq, np, Bp)
354 local eadt = nq.met.char_type[nq.class].end_adjust
355 if not eadt then return end
357 local x = node_new(id_kern, 1)
358 setfield(x, 'kern', eadt[1]); set_attr(x, attr_icflag, LINEEND)
359 insert_before(head, np.first, x)
361 local eadt_num = #eadt
363 local x = node_new(id_penalty)
364 setfield(x, 'penalty', 0); set_attr(x, attr_icflag, KINSOKU)
365 insert_before(head, np.first, x); Bp[#Bp+1] = x
366 local x = node_new(id_kern, 1)
367 setfield(x, 'kern', eadt[i]-eadt[i-1]); set_attr(x, attr_icflag, LINEEND)
368 insert_before(head, np.first, x)
370 if eadt_num>1 or eadt[1]~=0 then
371 local x = node_new(id_penalty)
372 setfield(x, 'penalty', 0); set_attr(x, attr_icflag, KINSOKU)
373 insert_before(head, np.first, x); Bp[#Bp+1] = x
374 local x = node_new(id_kern, 1)
375 setfield(x, 'kern', -eadt[eadt_num]); set_attr(x, attr_icflag, LINEEND)
376 insert_before(head, np.first, x)
377 local x = node_new(id_penalty)
378 setfield(x, 'penalty', 10000); set_attr(x, attr_icflag, KINSOKU)
379 insert_before(head, np.first, x); Bp[#Bp+1] = x
387 local myaw_atep1, myaw_step2, myaw_step1_last
388 local dummy = function(p,t,n) return t, false end
389 local ltjs_fast_get_stack_skip = ltjs.fast_get_stack_skip
390 function adjust_width(head)
391 if not head then return head end
393 for p in node_traverse_id(id_hlist, to_direct(head)) do
395 myaw_step2(last_p, myaw_step1(last_p, get_total_stretched(last_p)))
400 myaw_step2(last_p, myaw_step1_last(last_p, get_total_stretched(last_p)))
405 function enable_cb(status_le, status_pr, status_lp, status_ls)
406 if (status_le>0 or status_pr>0) and (not is_reg) then
407 luatexbase.add_to_callback('post_linebreak_filter',
408 adjust_width, 'Adjust width', 100)
410 elseif is_reg and (status_le==0 and status_pr==0) then
411 luatexbase.remove_from_callback('post_linebreak_filter', 'Adjust width')
415 if not luatexbase.in_callback('luatexja.adjust_jfmglue', 'luatexja.adjust') then
416 luatexbase.add_to_callback('luatexja.adjust_jfmglue', insert_lineend_kern, 'luatexja.adjust')
418 myaw_step1, myaw_step1_last = dummy, aw_step1_last
421 myaw_step1, myaw_step1_last = dummy, dummy
423 myaw_step1, myaw_step1_last = aw_step1, aw_step1_last
425 if luatexbase.in_callback('luatexja.adjust_jfmglue', 'luatexja.adjust') then
426 luatexbase.remove_from_callback('luatexja.adjust_jfmglue', 'luatexja.adjust')
429 myaw_step2 = (status_pr>0) and aw_step2 or aw_step2_dummy
430 luatexja.lineskip.setting(
431 status_lp>0 and 'profile' or 'dummy',
432 status_ls>0 and 'step' or 'dummy'
435 function disable_cb() -- only for compatibility
438 luatexja.adjust.enable_cb=enable_cb
439 luatexja.adjust.disable_cb=disable_cb
442 luatexja.unary_pars.adjust = function(t)
443 return is_reg and 1 or 0
446 -- -----------------------------------
447 luatexja.adjust.step_factor = 0.5
449 local insert = table.insert
450 local rangedimensions, max = node.direct.rangedimensions, math.max
451 function ltjl.p_profile(before, after, mirrored, bw)
454 local w_acc, d_before = 0, 0
455 local x = getlist(before); local xn = node_next(x)
458 if xn then w, _, d= rangedimensions(before,x,xn)
459 else w, _, d= rangedimensions(before,x) end
461 d_before = d; t[w_acc] = t[w_acc] or {}
462 if t[w_acc][1] then t[w_acc][1]=max(t[w_acc][1],d)
463 else t[w_acc][1]=d end
466 x = xn; if x then xn = node_next(x) end
470 local w_acc, h_before = 0, 0
471 local x = getlist(after); local xn = node_next(x)
474 if xn then w, h, d = rangedimensions(after,x,xn)
475 else w, h,d = rangedimensions(after,x) end
476 if mirrored then h=d end
478 h_before = h; t[w_acc] = t[w_acc] or {}
479 if t[w_acc][2] then t[w_acc][2]=max(t[w_acc][2],h)
480 else t[w_acc][2]=h end
483 x = xn; if x then xn = node_next(x) end
487 for i,v in pairs(t) do insert(t2, { i, v[1], v[2] } ) end
488 table.sort(t2, function(a,b) return a[1]<b[1] end)
490 local dmax, d, hmax, h, lmin = 0, 0, 0, 0, 1/0
491 for i,v in ipairs(t2) do
492 d, h = (v[2] or d), (v[3] or h)
493 if d>dmax then dmax=d end
494 if h>hmax then hmax=h end
495 if (bw-h-d)<lmin then lmin=bw-h-d end
497 if lmin==1/0 then lmin = 0 end
499 bw - lmin - getfield(before, 'depth')
500 - getfield(after, mirrored and 'depth' or 'height')
506 local ltja = luatexja.adjust
507 local copy_glue = ltjl.copy_glue
508 local floor, max = math.floor, math.max
509 function ltjl.l_step(dist, g, adj, normal, bw)
510 if dist < tex.lineskiplimit then
511 local f = max(1, bw*ltja.step_factor)
512 copy_glue(g, tex.baselineskip, 1, normal - f * floor((dist-tex.lineskip.width)/f))
514 copy_glue(g, tex.baselineskip, 2, normal)