summary refs log tree commit diff
path: root/locale/programs/ld-collate.c
blob: 19f26c8688d8a9558c441ab39c5dcd35011765de (plain) (blame)
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
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <endian.h>
#include <errno.h>
#include <limits.h>
#include <locale.h>
#include <obstack.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>

#include "localeinfo.h"
#include "locales.h"
#include "simple-hash.h"
#include "stringtrans.h"
#include "strlen-hash.h"

/* Uncomment the following line in the production version.  */
/* #define NDEBUG 1 */
#include <assert.h>


#define MAX(a, b) ((a) > (b) ? (a) : (b))

#define SWAPU32(w) \
  (((w) << 24) | (((w) & 0xff00) << 8) | (((w) >> 8) & 0xff00) | ((w) >> 24))


/* What kind of symbols get defined?  */
enum coll_symbol
{
  undefined,
  ellipsis,
  character,
  element,
  symbol
};


typedef struct patch_t
{
  const char *fname;
  size_t lineno;
  const char *token;
  union
  {
    unsigned int *pos;
    size_t idx;
  } where;
  struct patch_t *next;
} patch_t;


typedef struct element_t
{
  const wchar_t *name;
  unsigned int this_weight;

  struct element_t *next;

  unsigned int *ordering;
  size_t ordering_len;
} element_t;


/* The real definition of the struct for the LC_COLLATE locale.  */
struct locale_collate_t
{
  /* Collate symbol table.  Simple mapping to number.  */
  hash_table symbols;

  /* The collation elements.  */
  hash_table elements;
  struct obstack element_mem;

  /* The result table.  */
  hash_table result;

  /* Sorting rules given in order_start line.  */
  u_int32_t nrules;
  u_int32_t nrules_max;
  enum coll_sort_rule *rules;

  /* Used while recognizing symbol composed of multiple tokens
     (collating-element).  */
  const char *combine_token;
  size_t combine_token_len;

  /* How many sorting order specifications so far.  */
  unsigned int order_cnt;

  /* Was lastline ellipsis?  */
  int was_ellipsis;
  /* Value of last entry if was character.  */
  wchar_t last_char;
  /* Current element.  */
  element_t *current_element;
  /* What kind of symbol is current element.  */
  enum coll_symbol kind;

  /* While collecting the weights we need some temporary space.  */
  unsigned int current_order;
  int *weight_cnt;
  unsigned int weight_idx;
  unsigned int *weight;
  size_t nweight;
  size_t nweight_max;

  /* Patch lists.  */
  patch_t *current_patch;
  patch_t *all_patches;

  /* Room for the UNDEFINED information.  */
  element_t undefined;
  unsigned int undefined_len;
};


/* Be verbose?  Defined in localedef.c.  */
extern int verbose;


void *xmalloc (size_t __n);
void *xrealloc (void *__p, size_t __n);


#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free


void
collate_startup (struct linereader *lr, struct localedef_t *locale,
		 struct charset_t *charset)
{
  struct locale_collate_t *collate;

  /* It is important that we always use UCS4 encoding for strings now.  */
  encoding_method = ENC_UCS4;

  /* Allocate the needed room.  */
  locale->categories[LC_COLLATE].collate = collate =
    (struct locale_collate_t *) xmalloc (sizeof (struct locale_collate_t));

  /* Allocate hash table for collating elements.  */
  if (init_hash (&collate->elements, 512))
    error (4, 0, _("memory exhausted"));
  collate->combine_token = NULL;
  obstack_init (&collate->element_mem);

  /* Allocate hash table for collating elements.  */
  if (init_hash (&collate->symbols, 64))
    error (4, 0, _("memory exhausted"));

  /* Allocate hash table for result.  */
  if (init_hash (&collate->result, 512))
    error (4, 0, _("memory exhausted"));

  collate->nrules = 0;
  collate->nrules_max = 10;
  collate->rules
    = (enum coll_sort_rule *) xmalloc (collate->nrules_max
				       * sizeof (enum coll_sort_rule));

  collate->order_cnt = 1;	/* The smallest weight is 2.  */

  collate->was_ellipsis = 0;
  collate->last_char = L'\0';	/* 0 because leading ellipsis is allowed.  */

  collate->all_patches = NULL;

  /* This tells us no UNDEFINED entry was found until now.  */
  collate->undefined.this_weight = 0;

  lr->translate_strings = 0;
}


void
collate_finish (struct localedef_t *locale, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  patch_t *patch;
  size_t cnt;

  /* Patch the constructed table so that forward references are
     correctly filled.  */
  for (patch = collate->all_patches; patch != NULL; patch = patch->next)
    {
      wchar_t wch;
      size_t toklen = strlen (patch->token);
      void *ptmp;
      unsigned int value = 0;

      wch = charset_find_value (charset, patch->token, toklen);
      if (wch != ILLEGAL_CHAR_VALUE)
	{
	  element_t *runp;

	  if (find_entry (&collate->result, &wch, sizeof (wchar_t),
			  (void *) &runp) < 0)
	    runp = NULL;
	  for (; runp != NULL; runp = runp->next)
	    if (runp->name[0] == wch && runp->name[1] == L'\0')
	      break;

	  value = runp == NULL ? 0 : runp->this_weight;
	}
      else if (find_entry (&collate->elements, patch->token, toklen, &ptmp)
	       >= 0)
	{
	  value = ((element_t *) ptmp)->this_weight;
	}
      else if (find_entry (&collate->symbols, patch->token, toklen, &ptmp)
	       >= 0)
	{
	  value = (unsigned long int) ptmp;
	}
      else
	value = 0;

      if (value == 0)
	error_at_line (0, 0, patch->fname, patch->lineno,
		       _("no weight defined for symbol `%s'"), patch->token);
      else
	*patch->where.pos = value;
    }

  /* If no definition for UNDEFINED is given, all characters in the
     given charset must be specified.  */
  if (collate->undefined.ordering == NULL)
    {
      /**************************************************************\
      |* XXX We should test whether really an unspecified character *|
      |* exists before giving the message.			    *|
      \**************************************************************/
      u_int32_t weight;

      error (0, 0, _("no definition of `UNDEFINED'"));

      collate->undefined.ordering_len = collate->nrules;
      weight = ++collate->order_cnt;

      for (cnt = 0; cnt < collate->nrules; ++cnt)
	{
	  u_int32_t one = 1;
	  obstack_grow (&collate->element_mem, &one, sizeof (one));
	}

      for (cnt = 0; cnt < collate->nrules; ++cnt)
	obstack_grow (&collate->element_mem, &weight, sizeof (weight));

      collate->undefined.ordering = obstack_finish (&collate->element_mem);
    }

  collate->undefined_len = 2;	/* For the name: 1 x wchar_t + L'\0'.  */
  for (cnt = 0; cnt < collate->nrules; ++cnt)
    collate->undefined_len += 1 + collate->undefined.ordering[cnt];
}



void
collate_output (struct localedef_t *locale, struct charset_t *charset,
		const char *output_path)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  u_int32_t table_size, table_best, level_best, sum_best;
  void *last;
  element_t *pelem;
  wchar_t *name;
  size_t len;
  const size_t nelems = _NL_ITEM_INDEX (_NL_NUM_LC_COLLATE);
  struct iovec iov[2 + nelems];
  struct locale_file data;
  u_int32_t idx[nelems];
  struct obstack non_simple;
  struct obstack string_pool;
  size_t cnt, entry_size;
  u_int32_t undefined_offset = UINT_MAX;
  u_int32_t *table, *extra, *table2, *extra2;
  size_t extra_len;
  u_int32_t element_hash_tab_size;
  u_int32_t *element_hash_tab;
  u_int32_t *element_hash_tab_ob;
  u_int32_t element_string_pool_size;
  char *element_string_pool;
  u_int32_t element_value_size;
  wchar_t *element_value;
  wchar_t *element_value_ob;
  u_int32_t symbols_hash_tab_size;
  u_int32_t *symbols_hash_tab;
  u_int32_t *symbols_hash_tab_ob;
  u_int32_t symbols_string_pool_size;
  char *symbols_string_pool;
  u_int32_t symbols_class_size;
  u_int32_t *symbols_class;
  u_int32_t *symbols_class_ob;
  hash_table *hash_tab;
  unsigned int dummy_weights[collate->nrules + 1];

  sum_best = UINT_MAX;
  table_best = 0xffff;
  level_best = 0xffff;

  /* Compute table size.  */
  fputs (_("\
Computing table size for collation information might take a while..."),
	 stderr);
  for (table_size = 256; table_size < sum_best; ++table_size)
    {
      size_t hits[table_size];
      unsigned int worst = 1;
      size_t cnt;

      last = NULL;

      for (cnt = 0; cnt < 256; ++cnt)
	hits[cnt] = 1;
      memset (&hits[256], '\0', sizeof (hits) - 256 * sizeof (size_t));

      while (iterate_table (&collate->result, &last, (const void **) &name,
			    &len, (void **) &pelem) >= 0)
	if (pelem->ordering != NULL && pelem->name[0] > 0xff)
	  if (++hits[(unsigned int) pelem->name[0] % table_size] > worst)
	    {
	      worst = hits[(unsigned int) pelem->name[0] % table_size];
	      if (table_size * worst > sum_best)
		break;
	    }

      if (table_size * worst < sum_best)
	{
	  sum_best = table_size * worst;
	  table_best = table_size;
	  level_best = worst;
	}
    }
  assert (table_best != 0xffff || level_best != 0xffff);
  fputs (_(" done\n"), stderr);

  obstack_init (&non_simple);
  obstack_init (&string_pool);

  data.magic = LIMAGIC (LC_COLLATE);
  data.n = nelems;
  iov[0].iov_base = (void *) &data;
  iov[0].iov_len = sizeof (data);

  iov[1].iov_base = (void *) idx;
  iov[1].iov_len = sizeof (idx);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_NRULES)].iov_base = &collate->nrules;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_NRULES)].iov_len = sizeof (u_int32_t);

  table = (u_int32_t *) alloca (collate->nrules * sizeof (u_int32_t));
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_RULES)].iov_base = table;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_RULES)].iov_len
    = collate->nrules * sizeof (u_int32_t);
  /* Another trick here.  Describing the collation method needs only a
     few bits (3, to be exact).  But the binary file should be
     accessible by machines with both endianesses and so we store both
     forms in the same word.  */
  for (cnt = 0; cnt < collate->nrules; ++cnt)
    table[cnt] = collate->rules[cnt] | SWAPU32 (collate->rules[cnt]);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_HASH_SIZE)].iov_base = &table_best;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_HASH_SIZE)].iov_len = sizeof (u_int32_t);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_HASH_LAYERS)].iov_base = &level_best;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_HASH_LAYERS)].iov_len
    = sizeof (u_int32_t);

  entry_size = 1 + MAX (collate->nrules, 2);

  table = (u_int32_t *) alloca (table_best * level_best * entry_size
				* sizeof (table[0]));
  memset (table, '\0', table_best * level_best * entry_size
	  * sizeof (table[0]));


  /* Macros for inserting in output table.  */
#define ADD_VALUE(expr)							      \
  do {									      \
    u_int32_t to_write = (u_int32_t) expr;				      \
    obstack_grow (&non_simple, &to_write, sizeof (to_write));		      \
  } while (0)

#define ADD_ELEMENT(pelem, len)						      \
  do {									      \
    size_t cnt, idx;							      \
									      \
    ADD_VALUE (len);							      \
									      \
    wlen = wcslen (pelem->name);					      \
    obstack_grow (&non_simple, pelem->name, (wlen + 1) * sizeof (u_int32_t)); \
									      \
    idx = collate->nrules;						      \
    for (cnt = 0; cnt < collate->nrules; ++cnt)				      \
      {									      \
	size_t disp;							      \
									      \
	ADD_VALUE (pelem->ordering[cnt]);				      \
	for (disp = 0; disp < pelem->ordering[cnt]; ++disp)		      \
	  ADD_VALUE (pelem->ordering[idx++]);				      \
      }									      \
  } while (0)

#define ADD_FORWARD(pelem)						      \
  do {									      \
    /* We leave a reference in the main table and put all		      \
       information in the table for the extended entries.  */		      \
    element_t *runp;							      \
    element_t *has_simple = NULL;					      \
    size_t wlen;							      \
									      \
    table[(level * table_best + slot) * entry_size + 1]			      \
      = FORWARD_CHAR;							      \
    table[(level * table_best + slot) * entry_size + 2]			      \
      = obstack_object_size (&non_simple) / sizeof (u_int32_t);		      \
									      \
    /* Here we have to construct the non-simple table entry.  First	      \
       compute the total length of this entry.  */			      \
    for (runp = (pelem); runp != NULL; runp = runp->next)		      \
      if (runp->ordering != NULL)					      \
	{								      \
	  u_int32_t value;						      \
	  size_t cnt;							      \
									      \
	  value = 1 + wcslen (runp->name) + 1;				      \
									      \
	  for (cnt = 0; cnt < collate->nrules; ++cnt)			      \
	    /* We have to take care for entries without ordering	      \
	       information.  While reading them they get inserted in the      \
	       table and later not removed when something goes wrong with     \
	       reading its weights.  */					      \
	    {								      \
	      value += 1 + runp->ordering[cnt];				      \
									      \
	      if (runp->name[1] == L'\0')				      \
		has_simple = runp;					      \
	    }								      \
									      \
	  ADD_ELEMENT (runp, value);					      \
	}								      \
									      \
    if (has_simple == NULL)						      \
      {									      \
	size_t idx, cnt;						      \
									      \
	ADD_VALUE (collate->undefined_len + 1);				      \
									      \
	/* Add the name.  */						      \
	ADD_VALUE ((pelem)->name[0]);					      \
	ADD_VALUE (0);							      \
									      \
	idx = collate->nrules;						      \
	for (cnt = 0; cnt < collate->nrules; ++cnt)			      \
	  {								      \
	    size_t disp;						      \
									      \
	    ADD_VALUE (collate->undefined.ordering[cnt]);		      \
	    for (disp = 0; disp < collate->undefined.ordering[cnt]; ++disp)   \
	      {								      \
		if ((wchar_t) collate->undefined.ordering[idx]		      \
		    == ELLIPSIS_CHAR)					      \
		  ADD_VALUE ((pelem)->name[0]);				      \
		else							      \
		  ADD_VALUE (collate->undefined.ordering[idx++]);	      \
		++idx;							      \
	      }								      \
	  }								      \
      }									      \
  } while (0)



  /* Fill the table now.  First we look for all the characters which
     fit into one single byte.  This speeds up the 8-bit string
     functions.  */
  last = NULL;
  while (iterate_table (&collate->result, &last, (const void **) &name,
			&len, (void **) &pelem) >= 0)
    if (pelem->name[0] <= 0xff)
      {
	/* We have a single byte name.  Now we must distinguish
	   between entries in simple form (i.e., only one value per
	   weight and no collation element starting with the same
	   character) and those which are not.  */
	size_t slot = ((size_t) pelem->name[0]);
	const size_t level = 0;

	table[slot * entry_size] = pelem->name[0];

	if (pelem->name[1] == L'\0' && pelem->next == NULL
	    && pelem->ordering_len == collate->nrules)
	  {
	    /* Yes, we have a simple one.  Lucky us.  */
	    size_t cnt;

	    for (cnt = 0; cnt < collate->nrules; ++cnt)
	      table[slot * entry_size + 1 + cnt]
		= pelem->ordering[collate->nrules + cnt];
	  }
	else
	  ADD_FORWARD (pelem);
      }

  /* Now check for missing single byte entries.  If one exist we fill
     with the UNDEFINED entry.  */
  for (cnt = 0; cnt < 256; ++cnt)
    /* The first weight is never 0 for existing entries.  */
    if (table[cnt * entry_size + 1] == 0)
      {
	/* We have to fill in the information from the UNDEFINED
	   entry.  */
	table[cnt * entry_size] = (u_int32_t) cnt;

	if (collate->undefined.ordering_len == collate->nrules)
	  {
	    size_t inner;

	    for (inner = 0; inner < collate->nrules; ++inner)
	      if ((wchar_t)collate->undefined.ordering[collate->nrules + inner]
		  == ELLIPSIS_CHAR)
		table[cnt * entry_size + 1 + inner] = cnt;
	      else
		table[cnt * entry_size + 1 + inner]
		  = collate->undefined.ordering[collate->nrules + inner];
	  }
	else
	  {
	    if (undefined_offset != UINT_MAX)
	      {
		table[cnt * entry_size + 1] = FORWARD_CHAR;
		table[cnt * entry_size + 2] = undefined_offset;
	      }
	    else
	      {
		const size_t slot = cnt;
		const size_t level = 0;

		ADD_FORWARD (&collate->undefined);
		undefined_offset = table[cnt * entry_size + 2];
	      }
	  }
      }

  /* Now we are ready for inserting the whole rest.   */
  last = NULL;
  while (iterate_table (&collate->result, &last, (const void **) &name,
			&len, (void **) &pelem) >= 0)
    if (pelem->name[0] > 0xff)
      {
	/* Find the position.  */
	size_t slot = ((size_t) pelem->name[0]) % table_best;
	size_t level = 0;

	while (table[(level * table_best + slot) * entry_size + 1] != 0)
	  ++level;
	assert (level < level_best);

	if (pelem->name[1] == L'\0' && pelem->next == NULL
	    && pelem->ordering_len == collate->nrules)
	  {
	    /* Again a simple entry.  */
	    size_t inner;

	    for (inner = 0; inner < collate->nrules; ++inner)
	      table[(level * table_best + slot) * entry_size + 1 + inner]
		= pelem->ordering[collate->nrules + inner];
	  }
	else
	  ADD_FORWARD (pelem);
      }

  /* Add the UNDEFINED entry.  */
  {
    /* Here we have to construct the non-simple table entry.  */
    size_t idx, cnt;

    undefined_offset = obstack_object_size (&non_simple);

    idx = collate->nrules;
    for (cnt = 0; cnt < collate->nrules; ++cnt)
      {
	size_t disp;

	ADD_VALUE (collate->undefined.ordering[cnt]);
	for (disp = 0; disp < collate->undefined.ordering[cnt]; ++disp)
	  ADD_VALUE (collate->undefined.ordering[idx++]);
      }
  }

  /* Finish the extra block.  */
  extra_len = obstack_object_size (&non_simple);
  extra = (u_int32_t *) obstack_finish (&non_simple);
  assert ((extra_len % sizeof (u_int32_t)) == 0);

  /* Now we have to build the two array for the other byte ordering.  */
  table2 = (u_int32_t *) alloca (table_best * level_best * entry_size
				 * sizeof (table[0]));
  extra2 = (u_int32_t *) alloca (extra_len);

  for (cnt = 0; cnt < table_best * level_best * entry_size; ++cnt)
    table2[cnt] = SWAPU32 (table[cnt]);

  for (cnt = 0; cnt < extra_len / sizeof (u_int32_t); ++cnt)
    extra2[cnt] = SWAPU32 (extra2[cnt]);

  /* We need a simple hashing table to get a collation-element->chars
     mapping.  We again use internal hasing using a secondary hashing
     function.

     Each string has an associate hashing value V, computed by a
     fixed function.  To locate the string we use open addressing with
     double hashing.  The first index will be V % M, where M is the
     size of the hashing table.  If no entry is found, iterating with
     a second, independent hashing function takes place.  This second
     value will be 1 + V % (M - 2).  The approximate number of probes
     will be

	  for unsuccessful search: (1 - N / M) ^ -1
	  for successful search:   - (N / M) ^ -1 * ln (1 - N / M)

     where N is the number of keys.

     If we now choose M to be the next prime bigger than 4 / 3 * N,
     we get the values 4 and 1.85 resp.  Because unsuccessful searches
     are unlikely this is a good value.  Formulas: [Knuth, The Art of
     Computer Programming, Volume 3, Sorting and Searching, 1973,
     Addison Wesley]  */
  if (collate->elements.filled == 0)
    {
      /* We don't need any element table since there are no collating
	 elements.  */
      element_hash_tab_size = 0;
      element_hash_tab = NULL;
      element_hash_tab_ob = NULL;
      element_string_pool_size = 0;
      element_string_pool = NULL;
      element_value_size = 0;
      element_value = NULL;
      element_value_ob = NULL;
    }
  else
    {
      void *ptr;		/* Running pointer.  */
      const char *key;		/* Key for current bucket.  */
      size_t keylen;		/* Length of key data.  */
      const element_t *data;	/* Data, i.e., the character sequence.  */

      element_hash_tab_size = next_prime ((collate->elements.filled * 4) / 3);
      if (element_hash_tab_size < 7)
	/* We need a minimum to make the following code work.  */
	element_hash_tab_size = 7;

      element_hash_tab = obstack_alloc (&non_simple, (2 * element_hash_tab_size
						      * sizeof (u_int32_t)));
      memset (element_hash_tab, '\377', (2 * element_hash_tab_size
					 * sizeof (u_int32_t)));

      ptr = NULL;
      while (iterate_table (&collate->elements, &ptr, (const void **) &key,
			    &keylen, (void **) &data) == 0)
	{
	  size_t hash_val = hash_string (key, keylen);
	  size_t idx = hash_val % element_hash_tab_size;

	  if (element_hash_tab[2 * idx] != (~((u_int32_t) 0)))
	    {
	      /* We need the second hashing function.  */
	      size_t c = 1 + (hash_val % (element_hash_tab_size - 2));

	      do
		if (idx >= element_hash_tab_size - c)
		  idx -= element_hash_tab_size - c;
		else
		  idx += c;
	      while (element_hash_tab[2 * idx] != (~((u_int32_t) 0)));
	    }

	  element_hash_tab[2 * idx] = obstack_object_size (&non_simple);
	  element_hash_tab[2 * idx + 1] = (obstack_object_size (&string_pool)
					   / sizeof (wchar_t));

	  obstack_grow0 (&non_simple, key, keylen);
	  obstack_grow (&string_pool, data->name,
			(wcslen (data->name) + 1) * sizeof (wchar_t));
	}

      if (obstack_object_size (&non_simple) % 4 != 0)
	obstack_blank (&non_simple,
		       4 - (obstack_object_size (&non_simple) % 4));
      element_string_pool_size = obstack_object_size (&non_simple);
      element_string_pool = obstack_finish (&non_simple);

      element_value_size = obstack_object_size (&string_pool);
      element_value = obstack_finish (&string_pool);

      /* Create the tables for the other byte order.  */
      element_hash_tab_ob = obstack_alloc (&non_simple,
					   (2 * element_hash_tab_size
					    * sizeof (u_int32_t)));
      for (cnt = 0; cnt < 2 * element_hash_tab_size; ++cnt)
	element_hash_tab_ob[cnt] = SWAPU32 (element_hash_tab[cnt]);

      element_value_ob = obstack_alloc (&string_pool, element_value_size);
      if (sizeof (wchar_t) != 4)
	{
	  fputs ("sizeof (wchar_t) != 4 currently not handled", stderr);
	  abort ();
	}
      for (cnt = 0; cnt < element_value_size / 4; ++cnt)
	element_value_ob[cnt] = SWAPU32 (element_value[cnt]);
    }

  /* Store collation elements as map to collation class.  There are
     three kinds of symbols:
       - simple characters
       - collation elements
       - collation symbols
     We need to make a table which lets the user to access the primary
     weight based on the symbol string.  */
  symbols_hash_tab_size = next_prime ((4 * (charset->char_table.filled
					    + collate->elements.filled
					    + collate->symbols.filled)) / 3);
  symbols_hash_tab = obstack_alloc (&non_simple, (2 * symbols_hash_tab_size
						  * sizeof (u_int32_t)));
  memset (symbols_hash_tab, '\377', (2 * symbols_hash_tab_size
				     * sizeof (u_int32_t)));

  /* Now fill the array.  First the symbols from the character set,
     then the collation elements and last the collation symbols.  */
  hash_tab = &charset->char_table;
  while (1)
    {
      void *ptr;	/* Running pointer.  */
      const char *key;	/* Key for current bucket.  */
      size_t keylen;	/* Length of key data.  */
      void *data;	/* Data.  */

      ptr = NULL;
      while (iterate_table (hash_tab, &ptr, (const void **) &key,
			    &keylen, (void **) &data) == 0)
	{
	  size_t hash_val;
	  size_t idx;
	  u_int32_t word;
	  unsigned int *weights;

	  if (hash_tab == &charset->char_table
	      || hash_tab == &collate->elements)
	    {
	      element_t *lastp, *firstp;
	      wchar_t dummy_name[2];
	      const wchar_t *name;
	      size_t name_len;

	      if (hash_tab == &charset->char_table)
		{
		  dummy_name[0] = (wchar_t) ((unsigned long int) data);
		  dummy_name[1] = L'\0';
		  name = dummy_name;
		  name_len = sizeof (wchar_t);
		}
	      else
		{
		  element_t *elemp = (element_t *) data;
		  name = elemp->name;
		  name_len = wcslen (name) * sizeof (wchar_t);
		}

	      /* First check whether this character is used at all.  */
	      if (find_entry (&collate->result, name, name_len,
			      (void *) &firstp) < 0)
		/* The symbol is not directly mentioned in the collation.
		   I.e., we use the value for UNDEFINED.  */
		lastp = &collate->undefined;
	      else
		{
		  /* The entry for the simple character is always found at
		     the end.  */
		  lastp = firstp;
		  while (lastp->next != NULL && wcscmp (name, lastp->name))
		    lastp = lastp->next;
		}

	      weights = lastp->ordering;
	    }
	  else
	    {
	      dummy_weights[0] = 1;
	      dummy_weights[collate->nrules]
		= (unsigned int) ((unsigned long int) data);

	      weights = dummy_weights;
	    }

	  /* In LASTP->ordering we now have the collation class.
	     Determine the place in the hashing table next.  */
	  hash_val = hash_string (key, keylen);
	  idx = hash_val % symbols_hash_tab_size;

	  if (symbols_hash_tab[2 * idx] != (~((u_int32_t) 0)))
	    {
	      /* We need the second hashing function.  */
	      size_t c = 1 + (hash_val % (symbols_hash_tab_size - 2));

	      do
		if (idx >= symbols_hash_tab_size - c)
		  idx -= symbols_hash_tab_size - c;
		else
		  idx += c;
	      while (symbols_hash_tab[2 * idx] != (~((u_int32_t) 0)));
	    }

	  symbols_hash_tab[2 * idx] = obstack_object_size (&string_pool);
	  symbols_hash_tab[2 * idx + 1] = (obstack_object_size (&non_simple)
					   / sizeof (u_int32_t));

	  obstack_grow0 (&string_pool, key, keylen);
	  /* Adding the first weight looks complicated.  We have to deal
	     with the kind it is stored and with the fact that original
	     form uses `unsigned int's while we need `u_int32_t' here.  */
	  word = weights[0];
	  obstack_grow (&non_simple, &word, sizeof (u_int32_t));
	  for (cnt = 0; cnt < weights[0]; ++cnt)
	    {
	      word = weights[collate->nrules + cnt];
	      obstack_grow (&non_simple, &word, sizeof (u_int32_t));
	    }
	}

      if (hash_tab == &charset->char_table)
	hash_tab = &collate->elements;
      else if (hash_tab == &collate->elements)
	hash_tab = &collate->symbols;
      else
	break;
    }

  /* Now we have the complete tables.  */
  if (obstack_object_size (&string_pool) % 4 != 0)
    obstack_blank (&non_simple, 4 - (obstack_object_size (&string_pool) % 4));
  symbols_string_pool_size = obstack_object_size (&string_pool);
  symbols_string_pool = obstack_finish (&string_pool);

  symbols_class_size = obstack_object_size (&non_simple);
  symbols_class = obstack_finish (&non_simple);

  /* Generate tables with other byte order.  */
  symbols_hash_tab_ob = obstack_alloc (&non_simple, (2 * symbols_hash_tab_size
						     * sizeof (u_int32_t)));
  for (cnt = 0; cnt < 2 * symbols_hash_tab_size; ++cnt)
    symbols_hash_tab_ob[cnt] = SWAPU32 (symbols_hash_tab[cnt]);

  symbols_class_ob = obstack_alloc (&non_simple, symbols_class_size);
  for (cnt = 0; cnt < symbols_class_size / 4; ++cnt)
    symbols_class_ob[cnt] = SWAPU32 (symbols_class[cnt]);


  /* Store table addresses and lengths.   */
#if __BYTE_ORDER == __BIG_ENDIAN
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EB)].iov_base = table;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EB)].iov_len
    = table_best * level_best * entry_size * sizeof (table[0]);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EL)].iov_base = table2;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EL)].iov_len
    = table_best * level_best * entry_size * sizeof (table[0]);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EB)].iov_base = extra;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EB)].iov_len = extra_len;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EL)].iov_base = extra2;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EL)].iov_len = extra_len;
#else
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EB)].iov_base = table2;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EB)].iov_len
    = table_best * level_best * entry_size * sizeof (table[0]);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EL)].iov_base = table;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_TABLE_EL)].iov_len
    = table_best * level_best * entry_size * sizeof (table[0]);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EB)].iov_base = extra2;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EB)].iov_len = extra_len;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EL)].iov_base = extra;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_EXTRA_EL)].iov_len = extra_len;
#endif

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_UNDEFINED)].iov_base = &undefined_offset;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_UNDEFINED)].iov_len = sizeof (u_int32_t);


  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_SIZE)].iov_base
    = &element_hash_tab_size;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_SIZE)].iov_len
    = sizeof (u_int32_t);

#if __BYTE_ORDER == __BIG_ENDIAN
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EB)].iov_base
    = element_hash_tab;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EB)].iov_len
    = 2 * element_hash_tab_size * sizeof (u_int32_t);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EL)].iov_base
    = element_hash_tab_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EL)].iov_len
    = 2 * element_hash_tab_size * sizeof (u_int32_t);
#else
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EL)].iov_base
    = element_hash_tab;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EL)].iov_len
    = 2 * element_hash_tab_size * sizeof (u_int32_t);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EB)].iov_base
    = element_hash_tab_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_HASH_EB)].iov_len
    = 2 * element_hash_tab_size * sizeof (u_int32_t);
#endif

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_STR_POOL)].iov_base
    = element_string_pool;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_STR_POOL)].iov_len
    = element_string_pool_size;

#if __BYTE_ORDER == __BIG_ENDIAN
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EB)].iov_base
    = element_value;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EB)].iov_len
    = element_value_size;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EL)].iov_base
    = element_value_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EL)].iov_len
    = element_value_size;
#else
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EL)].iov_base
    = element_value;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EL)].iov_len
    = element_value_size;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EB)].iov_base
    = element_value_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_ELEM_VAL_EB)].iov_len
    = element_value_size;
#endif

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_SIZE)].iov_base
    = &symbols_hash_tab_size;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_SIZE)].iov_len
    = sizeof (u_int32_t);

#if __BYTE_ORDER == __BIG_ENDIAN
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EB)].iov_base
    = symbols_hash_tab;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EB)].iov_len
    = 2 * symbols_hash_tab_size * sizeof (u_int32_t);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EL)].iov_base
    = symbols_hash_tab_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EL)].iov_len
    = 2 * symbols_hash_tab_size * sizeof (u_int32_t);
#else
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EL)].iov_base
    = symbols_hash_tab;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EL)].iov_len
    = 2 * symbols_hash_tab_size * sizeof (u_int32_t);

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EB)].iov_base
    = symbols_hash_tab_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_HASH_EB)].iov_len
    = 2 * symbols_hash_tab_size * sizeof (u_int32_t);
#endif

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_STR_POOL)].iov_base
    = symbols_string_pool;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_STR_POOL)].iov_len
    = symbols_string_pool_size;

#if __BYTE_ORDER == __BIG_ENDIAN
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EB)].iov_base
    = symbols_class;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EB)].iov_len
    = symbols_class_size;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EL)].iov_base
    = symbols_class_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EL)].iov_len
    = symbols_class_size;
#else
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EL)].iov_base
    = symbols_class;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EL)].iov_len
    = symbols_class_size;

  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EB)].iov_base
    = symbols_class_ob;
  iov[2 + _NL_ITEM_INDEX (_NL_COLLATE_SYMB_CLASS_EB)].iov_len
    = symbols_class_size;
#endif

  /* Update idx array.  */
  idx[0] = iov[0].iov_len + iov[1].iov_len;
  for (cnt = 1; cnt < nelems; ++cnt)
    idx[cnt] = idx[cnt - 1] + iov[1 + cnt].iov_len;

  write_locale_data (output_path, "LC_COLLATE", 2 + nelems, iov);

  obstack_free (&non_simple, NULL);
  obstack_free (&string_pool, NULL);
}


void
collate_element_to (struct linereader *lr, struct localedef_t *locale,
		    struct token *code, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  unsigned int value;
  void *not_used;

  if (collate->combine_token != NULL)
    {
      free ((void *) collate->combine_token);
      collate->combine_token = NULL;
    }

  value = charset_find_value (charset, code->val.str.start, code->val.str.len);
  if ((wchar_t) value != ILLEGAL_CHAR_VALUE)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates symbolic name in charset"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  if (find_entry (&collate->elements, code->val.str.start, code->val.str.len,
		  &not_used) >= 0)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates other element definition"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  if (find_entry (&collate->elements, code->val.str.start, code->val.str.len,
		  &not_used) >= 0)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates symbol definition"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  collate->combine_token = code->val.str.start;
  collate->combine_token_len = code->val.str.len;
}


void
collate_element_from (struct linereader *lr, struct localedef_t *locale,
		      struct token *code, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  element_t *elemp, *runp;

  /* CODE is a string.  */
  elemp = (element_t *) obstack_alloc (&collate->element_mem,
				       sizeof (element_t));

  /* We have to translate the string.  It may contain <...> character
     names.  */
  elemp->name = (wchar_t *) translate_string (code->val.str.start, charset);
  elemp->this_weight = 0;
  elemp->ordering = NULL;
  elemp->ordering_len = 0;

  free (code->val.str.start);

  if (elemp->name == NULL)
    {
      /* At least one character in the string is not defined.  We simply
	 do nothing.  */
      if (verbose)
	lr_error (lr, _("\
`from' string in collation element declaration contains unknown character"));
      return;
    }

  if (elemp->name[0] == L'\0' || elemp->name[1] == L'\0')
    {
      lr_error (lr, _("illegal collation element"));
      return;
    }

  /* The entries in the linked lists of RESULT are sorting in
     descending order.  The order is important for the `strcoll' and
     `wcscoll' functions.  */
  if (find_entry (&collate->result, elemp->name, sizeof (wchar_t),
		  (void *) &runp) >= 0)
    {
      /* We already have an entry with this key.  Check whether it is
	 identical.  */
      element_t *prevp = NULL;
      int cmpres;

      do
	{
	  cmpres = wcscmp (elemp->name, runp->name);
	  if (cmpres <= 0)
	    break;
	  prevp = runp;
	}
      while ((runp = runp->next) != NULL);

      if (cmpres == 0)
	lr_error (lr, _("duplicate collating element definition"));
      else
	{
	  elemp->next = runp;
	  if (prevp == NULL)
	    {
	      if (set_entry (&collate->result, elemp->name, sizeof (wchar_t),
			     elemp) < 0)
		error (EXIT_FAILURE, 0, _("\
error while inserting collation element into hash table"));
	    }
	  else
	    prevp->next = elemp;
	}
    }
  else
    {
      elemp->next = NULL;
      if (insert_entry (&collate->result, elemp->name, sizeof (wchar_t), elemp)
	  < 0)
	error (EXIT_FAILURE, errno, _("error while inserting to hash table"));
    }

  if (insert_entry (&collate->elements, collate->combine_token,
		    collate->combine_token_len, (void *) elemp) < 0)
    lr_error (lr, _("cannot insert new collating symbol definition: %s"),
	      strerror (errno));
}


void
collate_symbol (struct linereader *lr, struct localedef_t *locale,
		struct token *code, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  wchar_t value;
  void *not_used;

  value = charset_find_value (charset, code->val.str.start, code->val.str.len);
  if (value != ILLEGAL_CHAR_VALUE)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates symbolic name in charset"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  if (find_entry (&collate->elements, code->val.str.start, code->val.str.len,
		  &not_used) >= 0)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates element definition"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  if (find_entry (&collate->symbols, code->val.str.start, code->val.str.len,
		  &not_used) >= 0)
    {
      lr_error (lr, _("symbol for multicharacter collating element "
		      "`%.*s' duplicates other symbol definition"),
		(int) code->val.str.len, code->val.str.start);
      return;
    }

  if (insert_entry (&collate->symbols, code->val.str.start, code->val.str.len,
		    (void *) 0) < 0)
    lr_error (lr, _("cannot insert new collating symbol definition: %s"),
	      strerror (errno));
}


void
collate_new_order (struct linereader *lr, struct localedef_t *locale,
		   enum coll_sort_rule sort_rule)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;

  if (collate->nrules >= collate->nrules_max)
    {
      collate->nrules_max *= 2;
      collate->rules
	= (enum coll_sort_rule *) xrealloc (collate->rules,
					    collate->nrules_max
					    * sizeof (enum coll_sort_rule));
    }

  collate->rules[collate->nrules++] = sort_rule;
}


void
collate_build_arrays (struct linereader *lr, struct localedef_t *locale)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;

  collate->rules
    = (enum coll_sort_rule *) xrealloc (collate->rules,
					collate->nrules
					* sizeof (enum coll_sort_rule));

  /* Allocate arrays for temporary weights.  */
  collate->weight_cnt = (int *) xmalloc (collate->nrules * sizeof (int));

  /* Choose arbitrary start value for table size.  */
  collate->nweight_max = 5 * collate->nrules;
  collate->weight = (int *) xmalloc (collate->nweight_max * sizeof (int));
}


int
collate_order_elem (struct linereader *lr, struct localedef_t *locale,
		    struct token *code, struct charset_t *charset)
{
  const wchar_t zero = L'\0';
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  int result = 0;
  wchar_t value;
  void *tmp;
  unsigned int i;

  switch (code->tok)
    {
    case tok_bsymbol:
      /* We have a string to find in one of the three hashing tables.  */
      value = charset_find_value (charset, code->val.str.start,
				  code->val.str.len);
      if (value != ILLEGAL_CHAR_VALUE)
	{
	  element_t *lastp, *firstp;

	  collate->kind = character;

	  if (find_entry (&collate->result, &value, sizeof (wchar_t),
			  (void *) &firstp) < 0)
	    firstp = lastp = NULL;
	  else
	    {
	      /* The entry for the simple character is always found at
		 the end.  */
	      lastp = firstp;
	      while (lastp->next != NULL)
		lastp = lastp->next;

	      if (lastp->name[0] == value && lastp->name[1] == L'\0')
		{
		  lr_error (lr, _("duplicate definition for character `%.*s'"),
			    (int) code->val.str.len, code->val.str.start);
		  lr_ignore_rest (lr, 0);
		  result = -1;
		  break;
		}
	    }

	  collate->current_element
	    = (element_t *) obstack_alloc (&collate->element_mem,
					   sizeof (element_t));

	  obstack_grow (&collate->element_mem, &value, sizeof (value));
	  obstack_grow (&collate->element_mem, &zero, sizeof (zero));

	  collate->current_element->name =
	    (const wchar_t *) obstack_finish (&collate->element_mem);

	  collate->current_element->this_weight = ++collate->order_cnt;

	  collate->current_element->next = NULL;

	  if (firstp == NULL)
	    {
	      if (insert_entry (&collate->result, &value, sizeof (wchar_t),
				(void *) collate->current_element) < 0)
		{
		  lr_error (lr, _("cannot insert collation element `%.*s'"),
			    (int) code->val.str.len, code->val.str.start);
		  exit (4);
		}
	    }
	  else
	    lastp->next = collate->current_element;
	}
      else if (find_entry (&collate->elements, code->val.str.start,
			   code->val.str.len, &tmp) >= 0)
	{
	  collate->current_element = (element_t *) tmp;

	  if (collate->current_element->this_weight != 0)
	    {
	      lr_error (lr, _("\
collation element `%.*s' appears more than once: ignore line"),
			(int) code->val.str.len, code->val.str.start);
	      lr_ignore_rest (lr, 0);
	      result = -1;
	      break;
	    }

	  collate->kind = element;
	  collate->current_element->this_weight = ++collate->order_cnt;
	}
      else if (find_entry (&collate->symbols, code->val.str.start,
			   code->val.str.len, &tmp) >= 0)
	{
	  unsigned int order = ++collate->order_cnt;

	  if ((unsigned long int) tmp != 0ul)
	    {
	      lr_error (lr, _("\
collation symbol `%.*s' appears more than once: ignore line"),
			(int) code->val.str.len, code->val.str.start);
	      lr_ignore_rest (lr, 0);
	      result = -1;
	      break;
	    }

	  collate->kind = symbol;

	  if (set_entry (&collate->symbols, code->val.str.start,
			 code->val.str.len, (void *) order) < 0)
	    {
	      lr_error (lr, _("cannot process order specification"));
	      exit (4);
	    }
	}
      else
	{
	  if (verbose)
	    lr_error (lr, _("unknown symbol `%.*s': line ignored"),
		      (int) code->val.str.len, code->val.str.start);
          lr_ignore_rest (lr, 0);

          result = -1;
	}
      break;

    case tok_undefined:
      collate->kind = undefined;
      collate->current_element = &collate->undefined;
      break;

    case tok_ellipsis:
      if (collate->was_ellipsis)
	{
	  lr_error (lr, _("\
two lines in a row containing `...' are not allowed"));
	  result = -1;
	}
      else if (collate->kind != character)
	{
	  /* An ellipsis requires the previous line to be an
	     character definition.  */
	  lr_error (lr, _("\
line before ellipsis does not contain definition for character constant"));
	  lr_ignore_rest (lr, 0);
	  result = -1;
	}
      else
	collate->kind = ellipsis;
      break;

    default:
      assert (! "illegal token in `collate_order_elem'");
    }

  /* Now it's time to handle the ellipsis in the previous line.  We do
     this only when the last line contained an definition for a
     character, the current line also defines an character, the
     character code for the later is bigger than the former.  */
  if (collate->was_ellipsis)
    {
      if (collate->kind != character)
	{
	  lr_error (lr, _("\
line after ellipsis must contain character definition"));
	  lr_ignore_rest (lr, 0);
	  result = -1;
	}
      else if (collate->last_char > value)
	{
	  lr_error (lr, _("end point of ellipsis range is bigger then start"));
	  lr_ignore_rest (lr, 0);
	  result = -1;
	}
      else
	{
	  /* We can fill the arrays with the information we need.  */
	  wchar_t name[2];
	  unsigned int *data;
	  size_t *ptr;
	  size_t cnt;

	  name[0] = collate->last_char + 1;
	  name[1] = L'\0';

	  data = (unsigned int *) alloca ((collate->nrules + collate->nweight)
					  * sizeof (unsigned int));
	  ptr = (size_t *) alloca (collate->nrules * sizeof (size_t));

	  if (data == NULL || ptr == NULL)
	    error (4, 0, _("memory exhausted"));

	  /* Prepare data.  Because the characters covered by an
	     ellipsis all have equal values we prepare the data once
	     and only change the variable number (if there are any).
	     PTR[...] will point to the entries which will have to be
	     fixed during the output loop.  */
	  for (cnt = 0; cnt < collate->nrules; ++cnt)
	    {
	      data[cnt] = collate->weight_cnt[cnt];
	      ptr[cnt] = (cnt == 0
			  ? collate->nweight
			  : ptr[cnt - 1] + collate->weight_cnt[cnt - 1]);
	    }

	  for (cnt = 0; cnt < collate->nweight; ++cnt)
	    data[collate->nrules + cnt] = collate->weight[cnt];

	  for (cnt = 0; cnt < collate->nrules; ++cnt)
	    if ((wchar_t) data[ptr[cnt]] != ELLIPSIS_CHAR)
	      ptr[cnt] = 0;

	  while (name[0] <= value)
	    {
	      element_t *pelem;

	      pelem = (element_t *) obstack_alloc (&collate->element_mem,
						   sizeof (element_t));
	      if (pelem == NULL)
		error (4, 0, _("memory exhausted"));

	      pelem->name
		= (const wchar_t *) obstack_copy (&collate->element_mem,
						  name, 2 * sizeof (wchar_t));
	      pelem->this_weight = ++collate->order_cnt;

	      pelem->ordering_len = collate->nweight;
	      pelem->ordering
		= (unsigned int *) obstack_copy (&collate->element_mem, data,
						 (collate->nrules
						  * pelem->ordering_len)
						 * sizeof (unsigned int));

	      /* `...' weights need to be adjusted.  */
	      for (cnt = 0; cnt < collate->nrules; ++cnt)
		if (ptr[cnt] != 0)
		  pelem->ordering[ptr[cnt]] = pelem->this_weight;

	      /* Insert new entry into result table.  */
	      if (find_entry (&collate->result, name, sizeof (wchar_t),
			      (void *) &pelem->next) >= 0)
		{
		  if (set_entry (&collate->result, name, sizeof (wchar_t),
				 (void *) pelem->next) < 0)
		    error (4, 0, _("cannot insert into result table"));
		}
	      else
		if (insert_entry (&collate->result, name, sizeof (wchar_t),
				  (void *) pelem->next) < 0)
		  error (4, 0, _("cannot insert into result table"));

	      /* Increment counter.  */
	      ++name[0];
	    }
	}
    }

  /* Reset counters for weights.  */
  collate->weight_idx = 0;
  collate->nweight = 0;
  for (i = 0; i < collate->nrules; ++i)
    collate->weight_cnt[i] = 0;
  collate->current_patch = NULL;

  return result;
}


int
collate_weight_bsymbol (struct linereader *lr, struct localedef_t *locale,
			struct token *code, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  unsigned int here_weight;
  wchar_t value;
  void *tmp;

  assert (code->tok == tok_bsymbol);

  value = charset_find_value (charset, code->val.str.start, code->val.str.len);
  if (value != ILLEGAL_CHAR_VALUE)
    {
      element_t *runp;

      if (find_entry (&collate->result, &value, sizeof (wchar_t),
		      (void *)&runp) < 0)
	runp = NULL;

      while (runp != NULL
	     && (runp->name[0] != value || runp->name[1] != L'\0'))
	runp = runp->next;

      here_weight = runp == NULL ? 0 : runp->this_weight;
    }
  else if (find_entry (&collate->elements, code->val.str.start,
		       code->val.str.len, &tmp) >= 0)
    {
      element_t *runp = (element_t *) tmp;

      here_weight = runp->this_weight;
    }
  else if (find_entry (&collate->symbols, code->val.str.start,
		       code->val.str.len, &tmp) >= 0)
    {
      here_weight = (unsigned int) tmp;
    }
  else
    {
      if (verbose)
	lr_error (lr, _("unknown symbol `%.*s': line ignored"),
		  (int) code->val.str.len, code->val.str.start);
      lr_ignore_rest (lr, 0);
      return -1;
    }

  /* When we currently work on a collation symbol we do not expect any
     weight.  */
  if (collate->kind == symbol)
    {
      lr_error (lr, _("\
specification of sorting weight for collation symbol does not make sense"));
      lr_ignore_rest (lr, 0);
      return -1;
    }

  /* Add to the current collection of weights.  */
  if (collate->nweight >= collate->nweight_max)
    {
      collate->nweight_max *= 2;
      collate->weight = (unsigned int *) xrealloc (collate->weight,
						   collate->nweight_max);
    }

  /* If the weight is currently not known, we remember to patch the
     resulting tables.  */
  if (here_weight == 0)
    {
      patch_t *newp;

      newp = (patch_t *) obstack_alloc (&collate->element_mem,
					sizeof (patch_t));
      newp->fname = lr->fname;
      newp->lineno = lr->lineno;
      newp->token = (const char *) obstack_copy0 (&collate->element_mem,
						  code->val.str.start,
						  code->val.str.len);
      newp->where.idx = collate->nweight++;
      newp->next = collate->current_patch;
      collate->current_patch = newp;
    }
  else
    collate->weight[collate->nweight++] = here_weight;
  ++collate->weight_cnt[collate->weight_idx];

  return 0;
}


int
collate_next_weight (struct linereader *lr, struct localedef_t *locale)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;

  if (collate->kind == symbol)
    {
      lr_error (lr, _("\
specification of sorting weight for collation symbol does not make sense"));
      lr_ignore_rest (lr, 0);
      return -1;
    }

  ++collate->weight_idx;
  if (collate->weight_idx >= collate->nrules)
    {
      lr_error (lr, _("too many weights"));
      lr_ignore_rest (lr, 0);
      return -1;
    }

  return 0;
}


int
collate_simple_weight (struct linereader *lr, struct localedef_t *locale,
		       struct token *code, struct charset_t *charset)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  unsigned int value = 0;

  /* There current tokens can be `IGNORE', `...', or a string.  */
  switch (code->tok)
    {
    case tok_ignore:
      /* This token is allowed in all situations.  */
      value = IGNORE_CHAR;
      break;

    case tok_ellipsis:
      /* The ellipsis is only allowed for the `...' or `UNDEFINED'
	 entry.  */
      if (collate->kind != ellipsis && collate->kind != undefined)
	{
	  lr_error (lr, _("\
`...' must only be used in `...' and `UNDEFINED' entries"));
	  lr_ignore_rest (lr, 0);
	  return -1;
	}
      value = ELLIPSIS_CHAR;
      break;

    case tok_string:
      /* This can become difficult.  We have to get the weights which
	 correspond to the single wide chars in the string.  But some
	 of the `chars' might not be real characters, but collation
	 elements or symbols.  And so the string decoder might have
	 signaled errors.  The string at this point is not translated.
	 I.e., all <...> sequences are still there.  */
      {
	char *runp = code->val.str.start;
	void *tmp;

	while (*runp != '\0')
	  {
	    char *startp = (char *) runp;
	    char *putp = (char *) runp;
	    wchar_t wch;

	    /* Lookup weight for char and store it.  */
	    if (*runp == '<')
	      {
		while (*++runp != '\0' && *runp != '>')
		  {
		    if (*runp == lr->escape_char)
		      if (*++runp == '\0')
			{
			  lr_error (lr, _("unterminated weight name"));
			  lr_ignore_rest (lr, 0);
			  return -1;
			}
		    *putp++ = *runp;
		  }
		if (*runp == '>')
		  ++runp;

		if (putp == startp)
		  {
		    lr_error (lr, _("empty weight name: line ignored"));
		    lr_ignore_rest (lr, 0);
		    return -1;
		  }

		wch = charset_find_value (charset, startp, putp - startp);
		if (wch != ILLEGAL_CHAR_VALUE)
		  {
		    element_t *pelem;

		    if (find_entry (&collate->result, &wch, sizeof (wchar_t),
				    (void *)&pelem) < 0)
		      pelem = NULL;

		    while (pelem != NULL
			   && (pelem->name[0] != wch
			       || pelem->name[1] != L'\0'))
		      pelem = pelem->next;

		    value = pelem == NULL ? 0 : pelem->this_weight;
		  }
		else if (find_entry (&collate->elements, startp, putp - startp,
				     &tmp) >= 0)
		  {
		    element_t *pelem = (element_t *) tmp;

		    value = pelem->this_weight;
		  }
		else if (find_entry (&collate->symbols, startp, putp - startp,
				     &tmp) >= 0)
		  {
		    value = (unsigned int) tmp;
		  }
		else
		  {
		    if (verbose)
		      lr_error (lr, _("unknown symbol `%.*s': line ignored"),
				(int) (putp - startp), startp);
		    lr_ignore_rest (lr, 0);
		    return -1;
		  }
	      }
	    else
	      {
		element_t *wp;
		wchar_t wch;

		if (*runp == lr->escape_char)
		  {
		    static const char digits[] = "0123456789abcdef";
		    const char *dp;
		    int base;

		    ++runp;
		    if (tolower (*runp) == 'x')
		      {
			++runp;
			base = 16;
		      }
		    else if (tolower (*runp) == 'd')
		      {
			++runp;
			base = 10;
		      }
		    else
		      base = 8;

		    dp = strchr (digits, tolower (*runp));
		    if (dp == NULL || (dp - digits) >= base)
		      {
		      illegal_char:
			lr_error (lr, _("\
illegal character constant in string"));
			lr_ignore_rest (lr, 0);
			return -1;
		      }
		    wch = dp - digits;
		    ++runp;

		    dp = strchr (digits, tolower (*runp));
		    if (dp == NULL || (dp - digits) >= base)
		      goto illegal_char;
		    wch *= base;
		    wch += dp - digits;
		    ++runp;

		    if (base != 16)
		      {
			dp = strchr (digits, tolower (*runp));
			if (dp != NULL && (dp - digits < base))
			  {
			    wch *= base;
			    wch += dp - digits;
			    ++runp;
			  }
		      }
		  }
		else
		  wch = (wchar_t) *runp++;

		/* Lookup the weight for WCH.  */
		if (find_entry (&collate->result, &wch, sizeof (wch),
				(void *)&wp) < 0)
		  wp = NULL;

		while (wp != NULL
		       && (wp->name[0] != wch || wp->name[1] != L'\0'))
		  wp = wp->next;

		value = wp == NULL ? 0 : wp->this_weight;

		/* To get the correct name for the error message.  */
		putp = runp;

		/**************************************************\
		|* I know here is something wrong.  Characters in *|
		|* the string which are not in the <...> form	  *|
		|* cannot be declared forward for now!!!	  *|
		\**************************************************/
	      }

	    /* Store in weight array.  */
	    if (collate->nweight >= collate->nweight_max)
	      {
		collate->nweight_max *= 2;
		collate->weight
		  = (unsigned int *) xrealloc (collate->weight,
					       collate->nweight_max);
	      }

	    if (value == 0)
	      {
		patch_t *newp;

		newp = (patch_t *) obstack_alloc (&collate->element_mem,
						  sizeof (patch_t));
		newp->fname = lr->fname;
		newp->lineno = lr->lineno;
		newp->token
		  = (const char *) obstack_copy0 (&collate->element_mem,
						  startp, putp - startp);
		newp->where.idx = collate->nweight++;
		newp->next = collate->current_patch;
		collate->current_patch = newp;
	      }
	    else
	      collate->weight[collate->nweight++] = value;
	    ++collate->weight_cnt[collate->weight_idx];
	  }
      }
      return 0;

    default:
      assert (! "should not happen");
    }


  if (collate->nweight >= collate->nweight_max)
    {
      collate->nweight_max *= 2;
      collate->weight = (unsigned int *) xrealloc (collate->weight,
						   collate->nweight_max);
    }

  collate->weight[collate->nweight++] = value;
  ++collate->weight_cnt[collate->weight_idx];

  return 0;
}


void
collate_end_weight (struct linereader *lr, struct localedef_t *locale)
{
  struct locale_collate_t *collate = locale->categories[LC_COLLATE].collate;
  element_t *pelem = collate->current_element;

  if (collate->kind == symbol)
    {
      /* We don't have to do anything.  */
      collate->was_ellipsis = 0;
      return;
    }

  if (collate->kind == ellipsis)
    {
      /* Before the next line is processed the ellipsis is handled.  */
      collate->was_ellipsis = 1;
      return;
    }

  assert (collate->kind == character || collate->kind == element
	  || collate->kind == undefined);

  /* Fill in the missing weights.  */
  while (++collate->weight_idx < collate->nrules)
    {
      collate->weight[collate->nweight++] = pelem->this_weight;
      ++collate->weight_cnt[collate->weight_idx];
    }

  /* Now we know how many ordering weights the current
     character/element has.  Allocate room in the element structure
     and copy information.  */
  pelem->ordering_len = collate->nweight;

  /* First we write an array with the number of values for each
     weight.  */
  obstack_grow (&collate->element_mem, collate->weight_cnt,
		collate->nrules * sizeof (unsigned int));

  /* Now the weights itselves.  */
  obstack_grow (&collate->element_mem, collate->weight,
		collate->nweight * sizeof (unsigned int));

  /* Get result.  */
  pelem->ordering = obstack_finish (&collate->element_mem);

  /* Now we handle the "patches".  */
  while (collate->current_patch != NULL)
    {
      patch_t *this_patch;

      this_patch = collate->current_patch;

      this_patch->where.pos = &pelem->ordering[collate->nrules
					      + this_patch->where.idx];

      collate->current_patch = this_patch->next;
      this_patch->next = collate->all_patches;
      collate->all_patches = this_patch;
    }

  /* Set information for next round.  */
  collate->was_ellipsis = 0;
  if (collate->kind != undefined)
    collate->last_char = pelem->name[0];
}