summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/tex/luatex/luatexja/luatexja.lua
blob: adf741f1938b732bb16e854451a29da47b7398cf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385

local floor = math.floor

require('lualibs')

------------------------------------------------------------------------
-- naming:
--    ext_... : called from \directlua{}
--    int_... : called from other Lua codes, but not from \directlua{}
--    (other)     : only called from this file
function luatexja.error(s,t)
   tex.error('LuaTeX-ja error: ' .. s ,t) 
end
function luatexja.load_module(name)
   if not package.loaded['luatexja.' .. name] then
      local fn = 'ltj-' .. name .. '.lua'
      local found = kpse.find_file(fn, 'tex')
      if not found then
	 luatexja.error("File `" .. fn .. "' not found", 
			{'This file ' .. fn .. ' is required for LuaTeX-ja.', 'Please check your installation.'})
      else 
	 texio.write('(' .. found .. ')\n')
	 dofile(found)
      end
   end
end
function luatexja.load_lua(fn)
   local found = kpse.find_file(fn, 'tex')
   if not found then
      error("File `" .. fn .. "' not found")
   else 
      texio.write('(' .. found .. ')\n')
      dofile(found)
   end
end

local icflag_table = {}
luatexja.icflag_table = icflag_table
icflag_table.ITALIC       = 1
icflag_table.PACKED       = 2
icflag_table.KINSOKU      = 3
icflag_table.FROM_JFM     = 6
-- FROM_JFM: 4, 5, 6, 7, 8 →優先度高
-- 6 が標準
icflag_table.KANJI_SKIP   = 9
icflag_table.XKANJI_SKIP  = 10
icflag_table.PROCESSED    = 11
icflag_table.IC_PROCESSED = 12
icflag_table.BOXBDD       = 15
icflag_table.PROCESSED_BEGIN_FLAG = 32


local load_module = luatexja.load_module
load_module('base');      local ltjb = luatexja.base
load_module('rmlgbm');    local ltjr = luatexja.rmlgbm -- must be 1st
load_module('charrange'); local ltjc = luatexja.charrange
load_module('jfont');     local ltjf = luatexja.jfont
load_module('inputbuf');  local ltji = luatexja.inputbuf
load_module('stack');     local ltjs = luatexja.stack
load_module('pretreat');  local ltjp = luatexja.pretreat
load_module('jfmglue');   local ltjj = luatexja.jfmglue
load_module('setwidth');  local ltjw = luatexja.setwidth
load_module('math');      local ltjm = luatexja.math
load_module('tangle');    local ltjb = luatexja.base


local node_type = node.type
local node_new = node.new
local node_prev = node.prev
local node_next = node.next
local has_attr = node.has_attribute
local node_insert_before = node.insert_before
local node_insert_after = node.insert_after
local node_hpack = node.hpack

local id_penalty = node.id('penalty')
local id_glyph = node.id('glyph')
local id_glue_spec = node.id('glue_spec')
local id_glue = node.id('glue')
local id_kern = node.id('kern')
local id_hlist = node.id('hlist')
local id_vlist = node.id('vlist')
local id_rule = node.id('rule')
local id_math = node.id('math')
local id_whatsit = node.id('whatsit')
local sid_user = node.subtype('user_defined')

local attr_jchar_class = luatexbase.attributes['ltj@charclass']
local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
local attr_yablshift = luatexbase.attributes['ltj@yablshift']
local attr_icflag = luatexbase.attributes['ltj@icflag']
local attr_uniqid = luatexbase.attributes['ltj@uniqid']
local cat_lp = luatexbase.catcodetables['latex-package']

-- Three aux. functions, bollowed from tex.web
local unity=65536
local function print_scaled(s)
   local out=''
   local delta=10
   if s<0 then 
      out=out..'-'; s=-s
   end
   out=out..tostring(floor(s/unity)) .. '.'
   s=10*(s%unity)+5
   repeat
      if delta>unity then s=s+32768-50000 end
      out=out .. tostring(floor(s/unity)) 
      s=10*(s%unity)
      delta=delta*10
   until s<=delta
   return out
end

local function print_glue(d,order)
   local out=print_scaled(d)
   if order>0 then
      out=out..'fi'
      while order>1 do
	 out=out..'l'; order=order-1
      end
   else 
      out=out..'pt'
   end
   return out
end

function print_spec(p)
   local out=print_scaled(p.width)..'pt'
   if p.stretch~=0 then
      out=out..' plus '..print_glue(p.stretch,p.stretch_order)
   end
   if p.shrink~=0 then
      out=out..' minus '..print_glue(p.shrink,p.shrink_order)
   end
return out
end


---- table: charprop_stack_table [stack_level].{pre|post|xsp}[chr_code]

------------------------------------------------------------------------
-- CODE FOR GETTING/SETTING PARAMETERS 
------------------------------------------------------------------------

-- EXT: print parameters that don't need arguments
function luatexja.ext_get_parameter_unary(k)
   if k == 'yalbaselineshift' then
      tex.write(print_scaled(tex.getattribute('ltj@yablshift'))..'pt')
   elseif k == 'yjabaselineshift' then
      tex.write(print_scaled(tex.getattribute('ltj@ykblshift'))..'pt')
   elseif k == 'kanjiskip' then
      tex.write(print_spec(ltjs.get_skip_table('kanjiskip', tex.getcount('ltj@@stack'))))
   elseif k == 'xkanjiskip' then
      tex.write(print_spec(ltjs.get_skip_table('xkanjiskip', tex.getcount('ltj@@stack'))))
   elseif k == 'jcharwidowpenalty' then
      tex.write(ltjs.get_penalty_table('jwp', 0, 0, tex.getcount('ltj@@stack')))
   elseif k == 'autospacing' then
      tex.write(tex.getattribute('ltj@autospc'))
   elseif k == 'autoxspacing' then
      tex.write(tex.getattribute('ltj@autoxspc'))
   elseif k == 'differentjfm' then
      if luatexja.jfmglue.diffmet_rule == math.max then
	 tex.write('large')
      elseif luatexja.jfmglue.diffmet_rule == math.min then
	 tex.write('small')
      elseif luatexja.jfmglue.diffmet_rule == math.two_average then
	 tex.write('average')
      elseif luatexja.jfmglue.diffmet_rule == math.two_add then
	 tex.write('both')
      else -- This can't happen.
	 tex.write('???')
      end
   end
end


-- EXT: print parameters that need arguments
function luatexja.ext_get_parameter_binary(k,c)
   if type(c)~='number' then
      ltjb.package_error('luatexja',
			 'invalid the second argument (' .. tostring(c) .. ')',
			 'I changed this one to zero.')
      c=0
   end
   if k == 'jacharrange' then
      if c>=7*ltjc.ATTR_RANGE then 
	 ltjb.package_error('luatexja',
			    'invalid character range number (' .. c .. ')',
			    'A character range number should be in the range 0..'
                               .. 7+ATTR_RANGE-1 .. ",\n"..
			     'So I changed this one to zero.')
	 c=0
      end
      -- 負の値は <U+0080 の文字の文字範囲,として出てくる.この時はいつも欧文文字なので 1 を返す
      tex.write( (c<0) and -1 or ltjc.get_range_setting(c))
   else
      if c<0 or c>0x10FFFF then
	 ltjb.package_error('luatexja',
			    'bad character code (' .. c .. ')',
			    'A character number must be between -1 and 0x10ffff.\n'..
			       "(-1 is used for denoting `math boundary')\n"..
			       'So I changed this one to zero.')
	 c=0
      end
      if k == 'prebreakpenalty' then
	 tex.write(ltjs.get_penalty_table('pre', c, 0, tex.getcount('ltj@@stack')))
      elseif k == 'postbreakpenalty' then
	 tex.write(ltjs.get_penalty_table('post', c, 0, tex.getcount('ltj@@stack')))
      elseif k == 'kcatcode' then
	 tex.write(ltjs.get_penalty_table('kcat', c, 0, tex.getcount('ltj@@stack')))
      elseif k == 'chartorange' then 
	 tex.write(ltjc.char_to_range(c))
      elseif k == 'jaxspmode' or k == 'alxspmode' then
	 tex.write(ltjs.get_penalty_table('xsp', c, 3, tex.getcount('ltj@@stack')))
      end
   end
end

-- EXT: print \global if necessary
function luatexja.ext_print_global()
   if luatexja.isglobal=='global' then tex.sprint(cat_lp, '\\global') end
end

-- main process
-- mode = true iff main_process is called from pre_linebreak_filter
local function main_process(head, mode, dir)
   local p = head
   p = ltjj.main(p,mode)
   if p then p = ltjw.set_ja_width(p, dir) end
   return p
end

-- callbacks

luatexbase.add_to_callback('pre_linebreak_filter', 
   function (head,groupcode)
      return main_process(head, true, tex.textdir)
   end,'ltj.pre_linebreak_filter',
   luatexbase.priority_in_callback('pre_linebreak_filter',
				   'luaotfload.pre_linebreak_filter') + 1)
luatexbase.add_to_callback('hpack_filter', 
  function (head,groupcode,size,packtype, dir)
     return main_process(head, false, dir)
  end,'ltj.hpack_filter',
   luatexbase.priority_in_callback('hpack_filter',
				   'luaotfload.hpack_filter') + 1)

-- debug
local function get_attr_icflag(p)
   return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG
end

local debug_depth

local function debug_show_node_X(p,print_fn)
   local k = debug_depth
   local s
   local pt=node_type(p.id)
   local base = debug_depth .. string.format('%X', get_attr_icflag(p))
   .. ' ' .. pt .. ' ' .. tostring(p.subtype) .. ' '
   if pt == 'glyph' then
      s = base .. ' ' .. utf.char(p.char) .. ' '  .. tostring(p.font)
         .. ' (' .. print_scaled(p.height) .. '+' 
         .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width)
      print_fn(s)
   elseif pt=='hlist' or pt=='vlist' then
      s = base .. '(' .. print_scaled(p.height) .. '+' 
         .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width) .. p.dir
      if p.shift~=0 then
         s = s .. ', shifted ' .. print_scaled(p.shift)
      end
      if p.glue_sign >= 1 then 
         s = s .. ' glue set '
         if p.glue_sign == 2 then s = s .. '-' end
         s = s .. tostring(floor(p.glue_set*10000)/10000)
         if p.glue_order == 0 then 
            s = s .. 'pt' 
         else 
            s = s .. 'fi'
            for i = 2,  p.glue_order do s = s .. 'l' end
         end
      end
      if get_attr_icflag(p) == icflag_table.PACKED then
         s = s .. ' (packed)'
      end
      print_fn(s)
      local q = p.head
      debug_depth=debug_depth.. '.'
      while q do 
         debug_show_node_X(q, print_fn); q = node_next(q)
      end
      debug_depth=k
   elseif pt == 'glue' then
      s = base .. ' ' ..  print_spec(p.spec)
      if get_attr_icflag(p)>icflag_table.KINSOKU 
         and get_attr_icflag(p)<icflag_table.KANJI_SKIP then
         s = s .. ' (from JFM: priority ' .. get_attr_icflag(p)-icflag_table.FROM_JFM .. ')'
      elseif get_attr_icflag(p)==icflag_table.KANJI_SKIP then
	 s = s .. ' (kanjiskip)'
      elseif get_attr_icflag(p)==icflag_table.XKANJI_SKIP then
	 s = s .. ' (xkanjiskip)'
      end
      print_fn(s)
   elseif pt == 'kern' then
      s = base .. ' ' .. print_scaled(p.kern) .. 'pt'
      if p.subtype==2 then
	 s = s .. ' (for accent)'
      elseif get_attr_icflag(p)==icflag_table.IC_PROCESSED then
	 s = s .. ' (italic correction)'
         -- elseif get_attr_icflag(p)==ITALIC then
         --    s = s .. ' (italic correction)'
      elseif get_attr_icflag(p)>icflag_table.KINSOKU 
         and get_attr_icflag(p)<icflag_table.KANJI_SKIP then
	 s = s .. ' (from JFM: priority ' .. get_attr_icflag(p)-icflag_table.FROM_JFM .. ')'
      end
      print_fn(s)
   elseif pt == 'penalty' then
      s = base .. ' ' .. tostring(p.penalty)
      if get_attr_icflag(p)==icflag_table.KINSOKU then
	 s = s .. ' (for kinsoku)'
      end
      print_fn(s)
   elseif pt == 'whatsit' then
      s = base .. ' subtype: ' ..  tostring(p.subtype)
      if p.subtype==sid_user then
         if p.type ~= 110 then 
            s = s .. ' user_id: ' .. p.user_id .. ' ' .. p.value
            print_fn(s)
         else
            s = s .. ' user_id: ' .. p.user_id .. ' (node list)'
            print_fn(s)
            local q = p.value
            debug_depth=debug_depth.. '.'
            while q do 
               debug_show_node_X(q, print_fn); q = node_next(q)
            end
            debug_depth=k
         end
      else
         s = s .. node.subtype(p.subtype); print_fn(s)
      end
   -------- math node --------
   elseif pt=='noad' then
      s = base ; print_fn(s)
      if p.nucleus then
         debug_depth = k .. 'N'; debug_show_node_X(p.nucleus, print_fn); 
      end
      if p.sup then
         debug_depth = k .. '^'; debug_show_node_X(p.sup, print_fn); 
      end
      if p.sub then
         debug_depth = k .. '_'; debug_show_node_X(p.sub, print_fn); 
      end
      debug_depth = k;
   elseif pt=='math_char' then
      s = base .. ' fam: ' .. p.fam .. ' , char = ' .. utf.char(p.char)
      print_fn(s)
   elseif pt=='sub_box' then
      print_fn(base)
      if p.head then
         debug_depth = k .. '.'; debug_show_node_X(p.head, print_fn); 
      end
   else
      print_fn(base)
   end
   p=node_next(p)
end
function luatexja.ext_show_node_list(head,depth,print_fn)
   debug_depth = depth
   if head then
      while head do
         debug_show_node_X(head, print_fn); head = node_next(head)
      end
   else
      print_fn(debug_depth .. ' (null list)')
   end
end
function luatexja.ext_show_node(head,depth,print_fn)
   debug_depth = depth
   if head then
      debug_show_node_X(head, print_fn)
   else
      print_fn(debug_depth .. ' (null list)')
   end
end