aboutsummaryrefslogtreecommitdiff
path: root/gdb/cp-names.y
blob: 889ef9193fe89f26d9f76d9e8f0f3a99ff667a48 (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
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
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
/* YACC parser for C++ names, for GDB.

   Copyright 2003, 2004, 2005
   Free Software Foundation, Inc.

   Parts of the lexer are based on c-exp.y from GDB.

This file is part of GDB.

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

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* Note that malloc's and realloc's in this file are transformed to
   xmalloc and xrealloc respectively by the same sed command in the
   makefile that remaps any other malloc/realloc inserted by the parser
   generator.  Doing this with #defines and trying to control the interaction
   with include files (<malloc.h> and <stdlib.h> for example) just became
   too messy, particularly when such includes can be inserted at random
   times by the parser generator.  */

%{

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#include "safe-ctype.h"
#include "libiberty.h"
#include "demangle.h"

/* Bison does not make it easy to create a parser without global
   state, unfortunately.  Here are all the global variables used
   in this parser.  */

/* LEXPTR is the current pointer into our lex buffer.  PREV_LEXPTR
   is the start of the last token lexed, only used for diagnostics.
   ERROR_LEXPTR is the first place an error occurred.  GLOBAL_ERRMSG
   is the first error message encountered.  */

static const char *lexptr, *prev_lexptr, *error_lexptr, *global_errmsg;

/* The components built by the parser are allocated ahead of time,
   and cached in this structure.  */

struct demangle_info {
  int used;
  struct demangle_component comps[1];
};

static struct demangle_info *demangle_info;
#define d_grab() (&demangle_info->comps[demangle_info->used++])

/* The parse tree created by the parser is stored here after a successful
   parse.  */

static struct demangle_component *global_result;

/* Prototypes for helper functions used when constructing the parse
   tree.  */

static struct demangle_component *d_qualify (struct demangle_component *, int,
					     int);

static struct demangle_component *d_int_type (int);

static struct demangle_component *d_unary (const char *,
					   struct demangle_component *);
static struct demangle_component *d_binary (const char *,
					    struct demangle_component *,
					    struct demangle_component *);

/* Flags passed to d_qualify.  */

#define QUAL_CONST 1
#define QUAL_RESTRICT 2
#define QUAL_VOLATILE 4

/* Flags passed to d_int_type.  */

#define INT_CHAR	(1 << 0)
#define INT_SHORT	(1 << 1)
#define INT_LONG	(1 << 2)
#define INT_LLONG	(1 << 3)

#define INT_SIGNED	(1 << 4)
#define INT_UNSIGNED	(1 << 5)

/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
   as well as gratuitiously global symbol names, so we can have multiple
   yacc generated parsers in gdb.  Note that these are only the variables
   produced by yacc.  If other parser generators (bison, byacc, etc) produce
   additional global names that conflict at link time, then those parser
   generators need to be fixed instead of adding those names to this list. */

#define	yymaxdepth cpname_maxdepth
#define	yyparse	cpname_parse
#define	yylex	cpname_lex
#define	yyerror	cpname_error
#define	yylval	cpname_lval
#define	yychar	cpname_char
#define	yydebug	cpname_debug
#define	yypact	cpname_pact	
#define	yyr1	cpname_r1			
#define	yyr2	cpname_r2			
#define	yydef	cpname_def		
#define	yychk	cpname_chk		
#define	yypgo	cpname_pgo		
#define	yyact	cpname_act		
#define	yyexca	cpname_exca
#define yyerrflag cpname_errflag
#define yynerrs	cpname_nerrs
#define	yyps	cpname_ps
#define	yypv	cpname_pv
#define	yys	cpname_s
#define	yy_yys	cpname_yys
#define	yystate	cpname_state
#define	yytmp	cpname_tmp
#define	yyv	cpname_v
#define	yy_yyv	cpname_yyv
#define	yyval	cpname_val
#define	yylloc	cpname_lloc
#define yyreds	cpname_reds		/* With YYDEBUG defined */
#define yytoks	cpname_toks		/* With YYDEBUG defined */
#define yyname	cpname_name		/* With YYDEBUG defined */
#define yyrule	cpname_rule		/* With YYDEBUG defined */
#define yylhs	cpname_yylhs
#define yylen	cpname_yylen
#define yydefred cpname_yydefred
#define yydgoto	cpname_yydgoto
#define yysindex cpname_yysindex
#define yyrindex cpname_yyrindex
#define yygindex cpname_yygindex
#define yytable	 cpname_yytable
#define yycheck	 cpname_yycheck

int yyparse (void);
static int yylex (void);
static void yyerror (char *);

/* Enable yydebug for the stand-alone parser.  */
#ifdef TEST_CPNAMES
# define YYDEBUG	1
#endif

/* Helper functions.  These wrap the demangler tree interface, handle
   allocation from our global store, and return the allocated component.  */

static struct demangle_component *
fill_comp (enum demangle_component_type d_type, struct demangle_component *lhs,
	   struct demangle_component *rhs)
{
  struct demangle_component *ret = d_grab ();
  cplus_demangle_fill_component (ret, d_type, lhs, rhs);
  return ret;
}

static struct demangle_component *
make_empty (enum demangle_component_type d_type)
{
  struct demangle_component *ret = d_grab ();
  ret->type = d_type;
  return ret;
}

static struct demangle_component *
make_operator (const char *name, int args)
{
  struct demangle_component *ret = d_grab ();
  cplus_demangle_fill_operator (ret, name, args);
  return ret;
}

static struct demangle_component *
make_dtor (enum gnu_v3_dtor_kinds kind, struct demangle_component *name)
{
  struct demangle_component *ret = d_grab ();
  cplus_demangle_fill_dtor (ret, kind, name);
  return ret;
}

static struct demangle_component *
make_builtin_type (const char *name)
{
  struct demangle_component *ret = d_grab ();
  cplus_demangle_fill_builtin_type (ret, name);
  return ret;
}

static struct demangle_component *
make_name (const char *name, int len)
{
  struct demangle_component *ret = d_grab ();
  cplus_demangle_fill_name (ret, name, len);
  return ret;
}

#define d_left(dc) (dc)->u.s_binary.left
#define d_right(dc) (dc)->u.s_binary.right

%}

%union
  {
    struct demangle_component *comp;
    struct nested {
      struct demangle_component *comp;
      struct demangle_component **last;
    } nested;
    struct {
      struct demangle_component *comp, *last;
    } nested1;
    struct {
      struct demangle_component *comp, **last;
      struct nested fn;
      struct demangle_component *start;
      int fold_flag;
    } abstract;
    int lval;
    struct {
      int val;
      struct demangle_component *type;
    } typed_val_int;
    const char *opname;
  }

%type <comp> exp exp1 type start start_opt operator colon_name
%type <comp> unqualified_name colon_ext_name
%type <comp> template template_arg
%type <comp> builtin_type
%type <comp> typespec_2 array_indicator
%type <comp> colon_ext_only ext_only_name

%type <comp> demangler_special function conversion_op
%type <nested> conversion_op_name

%type <abstract> abstract_declarator direct_abstract_declarator
%type <abstract> abstract_declarator_fn
%type <nested> declarator direct_declarator function_arglist

%type <nested> declarator_1 direct_declarator_1

%type <nested> template_params function_args
%type <nested> ptr_operator

%type <nested1> nested_name

%type <lval> qualifier qualifiers qualifiers_opt

%type <lval> int_part int_seq

%token <comp> INT
%token <comp> FLOAT

%token <comp> NAME
%type <comp> name

%token STRUCT CLASS UNION ENUM SIZEOF UNSIGNED COLONCOLON
%token TEMPLATE
%token ERROR
%token NEW DELETE OPERATOR
%token STATIC_CAST REINTERPRET_CAST DYNAMIC_CAST

/* Special type cases, put in to allow the parser to distinguish different
   legal basetypes.  */
%token SIGNED_KEYWORD LONG SHORT INT_KEYWORD CONST_KEYWORD VOLATILE_KEYWORD DOUBLE_KEYWORD BOOL
%token ELLIPSIS RESTRICT VOID FLOAT_KEYWORD CHAR WCHAR_T

%token <opname> ASSIGN_MODIFY

/* C++ */
%token TRUEKEYWORD
%token FALSEKEYWORD

/* Non-C++ things we get from the demangler.  */
%token <lval> DEMANGLER_SPECIAL
%token CONSTRUCTION_VTABLE CONSTRUCTION_IN
%token <typed_val_int> GLOBAL

%{
enum {
  GLOBAL_CONSTRUCTORS = DEMANGLE_COMPONENT_LITERAL + 20,
  GLOBAL_DESTRUCTORS = DEMANGLE_COMPONENT_LITERAL + 21
};
%}

/* Precedence declarations.  */

/* Give NAME lower precedence than COLONCOLON, so that nested_name will
   associate greedily.  */
%nonassoc NAME

/* Give NEW and DELETE lower precedence than ']', because we can not
   have an array of type operator new.  This causes NEW '[' to be
   parsed as operator new[].  */
%nonassoc NEW DELETE

/* Give VOID higher precedence than NAME.  Then we can use %prec NAME
   to prefer (VOID) to (function_args).  */
%nonassoc VOID

/* Give VOID lower precedence than ')' for similar reasons.  */
%nonassoc ')'

%left ','
%right '=' ASSIGN_MODIFY
%right '?'
%left OROR
%left ANDAND
%left '|'
%left '^'
%left '&'
%left EQUAL NOTEQUAL
%left '<' '>' LEQ GEQ
%left LSH RSH
%left '@'
%left '+' '-'
%left '*' '/' '%'
%right UNARY INCREMENT DECREMENT

/* We don't need a precedence for '(' in this reduced grammar, and it
   can mask some unpleasant bugs, so disable it for now.  */

%right ARROW '.' '[' /* '(' */
%left COLONCOLON


%%

result		:	start
			{ global_result = $1; }
		;

start		:	type

		|	demangler_special

		|	function

		;

start_opt	:	/* */
			{ $$ = NULL; }
		|	COLONCOLON start
			{ $$ = $2; }
		;

function
		/* Function with a return type.  declarator_1 is used to prevent
		   ambiguity with the next rule.  */
		:	typespec_2 declarator_1
			{ $$ = $2.comp;
			  *$2.last = $1;
			}

		/* Function without a return type.  We need to use typespec_2
		   to prevent conflicts from qualifiers_opt - harmless.  The
		   start_opt is used to handle "function-local" variables and
		   types.  */
		|	typespec_2 function_arglist start_opt
			{ $$ = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1, $2.comp);
			  if ($3) $$ = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$, $3); }
		|	colon_ext_only function_arglist start_opt
			{ $$ = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1, $2.comp);
			  if ($3) $$ = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$, $3); }

		|	conversion_op_name start_opt
			{ $$ = $1.comp;
			  if ($2) $$ = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$, $2); }
		|	conversion_op_name abstract_declarator_fn
			{ if ($2.last)
			    {
			       /* First complete the abstract_declarator's type using
				  the typespec from the conversion_op_name.  */
			      *$2.last = *$1.last;
			      /* Then complete the conversion_op_name with the type.  */
			      *$1.last = $2.comp;
			    }
			  /* If we have an arglist, build a function type.  */
			  if ($2.fn.comp)
			    $$ = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1.comp, $2.fn.comp);
			  else
			    $$ = $1.comp;
			  if ($2.start) $$ = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$, $2.start);
			}
		;

demangler_special
		:	DEMANGLER_SPECIAL start
			{ $$ = make_empty ($1);
			  d_left ($$) = $2;
			  d_right ($$) = NULL; }
		|	CONSTRUCTION_VTABLE start CONSTRUCTION_IN start
			{ $$ = fill_comp (DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE, $2, $4); }
		|	GLOBAL
			{ $$ = make_empty ($1.val);
			  d_left ($$) = $1.type;
			  d_right ($$) = NULL; }
		;

operator	:	OPERATOR NEW
			{ $$ = make_operator ("new", 1); }
		|	OPERATOR DELETE
			{ $$ = make_operator ("delete", 1); }
		|	OPERATOR NEW '[' ']'
			{ $$ = make_operator ("new[]", 1); }
		|	OPERATOR DELETE '[' ']'
			{ $$ = make_operator ("delete[]", 1); }
		|	OPERATOR '+'
			{ $$ = make_operator ("+", 2); }
		|	OPERATOR '-'
			{ $$ = make_operator ("-", 2); }
		|	OPERATOR '*'
			{ $$ = make_operator ("*", 2); }
		|	OPERATOR '/'
			{ $$ = make_operator ("/", 2); }
		|	OPERATOR '%'
			{ $$ = make_operator ("%", 2); }
		|	OPERATOR '^'
			{ $$ = make_operator ("^", 2); }
		|	OPERATOR '&'
			{ $$ = make_operator ("&", 2); }
		|	OPERATOR '|'
			{ $$ = make_operator ("|", 2); }
		|	OPERATOR '~'
			{ $$ = make_operator ("~", 1); }
		|	OPERATOR '!'
			{ $$ = make_operator ("!", 1); }
		|	OPERATOR '='
			{ $$ = make_operator ("=", 2); }
		|	OPERATOR '<'
			{ $$ = make_operator ("<", 2); }
		|	OPERATOR '>'
			{ $$ = make_operator (">", 2); }
		|	OPERATOR ASSIGN_MODIFY
			{ $$ = make_operator ($2, 2); }
		|	OPERATOR LSH
			{ $$ = make_operator ("<<", 2); }
		|	OPERATOR RSH
			{ $$ = make_operator (">>", 2); }
		|	OPERATOR EQUAL
			{ $$ = make_operator ("==", 2); }
		|	OPERATOR NOTEQUAL
			{ $$ = make_operator ("!=", 2); }
		|	OPERATOR LEQ
			{ $$ = make_operator ("<=", 2); }
		|	OPERATOR GEQ
			{ $$ = make_operator (">=", 2); }
		|	OPERATOR ANDAND
			{ $$ = make_operator ("&&", 2); }
		|	OPERATOR OROR
			{ $$ = make_operator ("||", 2); }
		|	OPERATOR INCREMENT
			{ $$ = make_operator ("++", 1); }
		|	OPERATOR DECREMENT
			{ $$ = make_operator ("--", 1); }
		|	OPERATOR ','
			{ $$ = make_operator (",", 2); }
		|	OPERATOR ARROW '*'
			{ $$ = make_operator ("->*", 2); }
		|	OPERATOR ARROW
			{ $$ = make_operator ("->", 2); }
		|	OPERATOR '(' ')'
			{ $$ = make_operator ("()", 0); }
		|	OPERATOR '[' ']'
			{ $$ = make_operator ("[]", 2); }
		;

		/* Conversion operators.  We don't try to handle some of
		   the wackier demangler output for function pointers,
		   since it's not clear that it's parseable.  */
conversion_op
		:	OPERATOR typespec_2
			{ $$ = fill_comp (DEMANGLE_COMPONENT_CAST, $2, NULL); }
		;

conversion_op_name
		:	nested_name conversion_op
			{ $$.comp = $1.comp;
			  d_right ($1.last) = $2;
			  $$.last = &d_left ($2);
			}
		|	conversion_op
			{ $$.comp = $1;
			  $$.last = &d_left ($1);
			}
		|	COLONCOLON nested_name conversion_op
			{ $$.comp = $2.comp;
			  d_right ($2.last) = $3;
			  $$.last = &d_left ($3);
			}
		|	COLONCOLON conversion_op
			{ $$.comp = $2;
			  $$.last = &d_left ($2);
			}
		;

/* DEMANGLE_COMPONENT_NAME */
/* This accepts certain invalid placements of '~'.  */
unqualified_name:	operator
		|	operator '<' template_params '>'
			{ $$ = fill_comp (DEMANGLE_COMPONENT_TEMPLATE, $1, $3.comp); }
		|	'~' NAME
			{ $$ = make_dtor (gnu_v3_complete_object_dtor, $2); }
		;

/* This rule is used in name and nested_name, and expanded inline there
   for efficiency.  */
/*
scope_id	:	NAME
		|	template
		;
*/

colon_name	:	name
		|	COLONCOLON name
			{ $$ = $2; }
		;

/* DEMANGLE_COMPONENT_QUAL_NAME */
/* DEMANGLE_COMPONENT_CTOR / DEMANGLE_COMPONENT_DTOR ? */
name		:	nested_name NAME %prec NAME
			{ $$ = $1.comp; d_right ($1.last) = $2; }
		|	NAME %prec NAME
		|	nested_name template %prec NAME
			{ $$ = $1.comp; d_right ($1.last) = $2; }
		|	template %prec NAME
		;

colon_ext_name	:	colon_name
		|	colon_ext_only
		;

colon_ext_only	:	ext_only_name
		|	COLONCOLON ext_only_name
			{ $$ = $2; }
		;

ext_only_name	:	nested_name unqualified_name
			{ $$ = $1.comp; d_right ($1.last) = $2; }
		|	unqualified_name
		;

nested_name	:	NAME COLONCOLON
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_QUAL_NAME);
			  d_left ($$.comp) = $1;
			  d_right ($$.comp) = NULL;
			  $$.last = $$.comp;
			}
		|	nested_name NAME COLONCOLON
			{ $$.comp = $1.comp;
			  d_right ($1.last) = make_empty (DEMANGLE_COMPONENT_QUAL_NAME);
			  $$.last = d_right ($1.last);
			  d_left ($$.last) = $2;
			  d_right ($$.last) = NULL;
			}
		|	template COLONCOLON
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_QUAL_NAME);
			  d_left ($$.comp) = $1;
			  d_right ($$.comp) = NULL;
			  $$.last = $$.comp;
			}
		|	nested_name template COLONCOLON
			{ $$.comp = $1.comp;
			  d_right ($1.last) = make_empty (DEMANGLE_COMPONENT_QUAL_NAME);
			  $$.last = d_right ($1.last);
			  d_left ($$.last) = $2;
			  d_right ($$.last) = NULL;
			}
		;

/* DEMANGLE_COMPONENT_TEMPLATE */
/* DEMANGLE_COMPONENT_TEMPLATE_ARGLIST */
template	:	NAME '<' template_params '>'
			{ $$ = fill_comp (DEMANGLE_COMPONENT_TEMPLATE, $1, $3.comp); }
		;

template_params	:	template_arg
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, $1, NULL);
			$$.last = &d_right ($$.comp); }
		|	template_params ',' template_arg
			{ $$.comp = $1.comp;
			  *$1.last = fill_comp (DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, $3, NULL);
			  $$.last = &d_right (*$1.last);
			}
		;

/* "type" is inlined into template_arg and function_args.  */

/* Also an integral constant-expression of integral type, and a
   pointer to member (?) */
template_arg	:	typespec_2
		|	typespec_2 abstract_declarator
			{ $$ = $2.comp;
			  *$2.last = $1;
			}
		|	'&' start
			{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator ("&", 1), $2); }
		|	'&' '(' start ')'
			{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator ("&", 1), $3); }
		|	exp
		;

function_args	:	typespec_2
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_ARGLIST, $1, NULL);
			  $$.last = &d_right ($$.comp);
			}
		|	typespec_2 abstract_declarator
			{ *$2.last = $1;
			  $$.comp = fill_comp (DEMANGLE_COMPONENT_ARGLIST, $2.comp, NULL);
			  $$.last = &d_right ($$.comp);
			}
		|	function_args ',' typespec_2
			{ *$1.last = fill_comp (DEMANGLE_COMPONENT_ARGLIST, $3, NULL);
			  $$.comp = $1.comp;
			  $$.last = &d_right (*$1.last);
			}
		|	function_args ',' typespec_2 abstract_declarator
			{ *$4.last = $3;
			  *$1.last = fill_comp (DEMANGLE_COMPONENT_ARGLIST, $4.comp, NULL);
			  $$.comp = $1.comp;
			  $$.last = &d_right (*$1.last);
			}
		|	function_args ',' ELLIPSIS
			{ *$1.last
			    = fill_comp (DEMANGLE_COMPONENT_ARGLIST,
					   make_builtin_type ("..."),
					   NULL);
			  $$.comp = $1.comp;
			  $$.last = &d_right (*$1.last);
			}
		;

function_arglist:	'(' function_args ')' qualifiers_opt %prec NAME
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_FUNCTION_TYPE, NULL, $2.comp);
			  $$.last = &d_left ($$.comp);
			  $$.comp = d_qualify ($$.comp, $4, 1); }
		|	'(' VOID ')' qualifiers_opt
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_FUNCTION_TYPE, NULL, NULL);
			  $$.last = &d_left ($$.comp);
			  $$.comp = d_qualify ($$.comp, $4, 1); }
		|	'(' ')' qualifiers_opt
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_FUNCTION_TYPE, NULL, NULL);
			  $$.last = &d_left ($$.comp);
			  $$.comp = d_qualify ($$.comp, $3, 1); }
		;

/* Should do something about DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL */
qualifiers_opt	:	/* epsilon */
			{ $$ = 0; }
		|	qualifiers
		;

qualifier	:	RESTRICT
			{ $$ = QUAL_RESTRICT; }
		|	VOLATILE_KEYWORD
			{ $$ = QUAL_VOLATILE; }
		|	CONST_KEYWORD
			{ $$ = QUAL_CONST; }
		;

qualifiers	:	qualifier
		|	qualifier qualifiers
			{ $$ = $1 | $2; }
		;

/* This accepts all sorts of invalid constructions and produces
   invalid output for them - an error would be better.  */

int_part	:	INT_KEYWORD
			{ $$ = 0; }
		|	SIGNED_KEYWORD
			{ $$ = INT_SIGNED; }
		|	UNSIGNED
			{ $$ = INT_UNSIGNED; }
		|	CHAR
			{ $$ = INT_CHAR; }
		|	LONG
			{ $$ = INT_LONG; }
		|	SHORT
			{ $$ = INT_SHORT; }
		;

int_seq		:	int_part
		|	int_seq int_part
			{ $$ = $1 | $2; if ($1 & $2 & INT_LONG) $$ = $1 | INT_LLONG; }
		;

builtin_type	:	int_seq
			{ $$ = d_int_type ($1); }
		|	FLOAT_KEYWORD
			{ $$ = make_builtin_type ("float"); }
		|	DOUBLE_KEYWORD
			{ $$ = make_builtin_type ("double"); }
		|	LONG DOUBLE_KEYWORD
			{ $$ = make_builtin_type ("long double"); }
		|	BOOL
			{ $$ = make_builtin_type ("bool"); }
		|	WCHAR_T
			{ $$ = make_builtin_type ("wchar_t"); }
		|	VOID
			{ $$ = make_builtin_type ("void"); }
		;

ptr_operator	:	'*' qualifiers_opt
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_POINTER);
			  $$.comp->u.s_binary.left = $$.comp->u.s_binary.right = NULL;
			  $$.last = &d_left ($$.comp);
			  $$.comp = d_qualify ($$.comp, $2, 0); }
		/* g++ seems to allow qualifiers after the reference?  */
		|	'&'
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_REFERENCE);
			  $$.comp->u.s_binary.left = $$.comp->u.s_binary.right = NULL;
			  $$.last = &d_left ($$.comp); }
		|	nested_name '*' qualifiers_opt
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_PTRMEM_TYPE);
			  $$.comp->u.s_binary.left = $1.comp;
			  /* Convert the innermost DEMANGLE_COMPONENT_QUAL_NAME to a DEMANGLE_COMPONENT_NAME.  */
			  *$1.last = *d_left ($1.last);
			  $$.comp->u.s_binary.right = NULL;
			  $$.last = &d_right ($$.comp);
			  $$.comp = d_qualify ($$.comp, $3, 0); }
		|	COLONCOLON nested_name '*' qualifiers_opt
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_PTRMEM_TYPE);
			  $$.comp->u.s_binary.left = $2.comp;
			  /* Convert the innermost DEMANGLE_COMPONENT_QUAL_NAME to a DEMANGLE_COMPONENT_NAME.  */
			  *$2.last = *d_left ($2.last);
			  $$.comp->u.s_binary.right = NULL;
			  $$.last = &d_right ($$.comp);
			  $$.comp = d_qualify ($$.comp, $4, 0); }
		;

array_indicator	:	'[' ']'
			{ $$ = make_empty (DEMANGLE_COMPONENT_ARRAY_TYPE);
			  d_left ($$) = NULL;
			}
		|	'[' INT ']'
			{ $$ = make_empty (DEMANGLE_COMPONENT_ARRAY_TYPE);
			  d_left ($$) = $2;
			}
		;

/* Details of this approach inspired by the G++ < 3.4 parser.  */

/* This rule is only used in typespec_2, and expanded inline there for
   efficiency.  */
/*
typespec	:	builtin_type
		|	colon_name
		;
*/

typespec_2	:	builtin_type qualifiers
			{ $$ = d_qualify ($1, $2, 0); }
		|	builtin_type
		|	qualifiers builtin_type qualifiers
			{ $$ = d_qualify ($2, $1 | $3, 0); }
		|	qualifiers builtin_type
			{ $$ = d_qualify ($2, $1, 0); }

		|	name qualifiers
			{ $$ = d_qualify ($1, $2, 0); }
		|	name
		|	qualifiers name qualifiers
			{ $$ = d_qualify ($2, $1 | $3, 0); }
		|	qualifiers name
			{ $$ = d_qualify ($2, $1, 0); }

		|	COLONCOLON name qualifiers
			{ $$ = d_qualify ($2, $3, 0); }
		|	COLONCOLON name
			{ $$ = $2; }
		|	qualifiers COLONCOLON name qualifiers
			{ $$ = d_qualify ($3, $1 | $4, 0); }
		|	qualifiers COLONCOLON name
			{ $$ = d_qualify ($3, $1, 0); }
		;

abstract_declarator
		:	ptr_operator
			{ $$.comp = $1.comp; $$.last = $1.last;
			  $$.fn.comp = NULL; $$.fn.last = NULL; }
		|	ptr_operator abstract_declarator
			{ $$ = $2; $$.fn.comp = NULL; $$.fn.last = NULL;
			  if ($2.fn.comp) { $$.last = $2.fn.last; *$2.last = $2.fn.comp; }
			  *$$.last = $1.comp;
			  $$.last = $1.last; }
		|	direct_abstract_declarator
			{ $$.fn.comp = NULL; $$.fn.last = NULL;
			  if ($1.fn.comp) { $$.last = $1.fn.last; *$1.last = $1.fn.comp; }
			}
		;

direct_abstract_declarator
		:	'(' abstract_declarator ')'
			{ $$ = $2; $$.fn.comp = NULL; $$.fn.last = NULL; $$.fold_flag = 1;
			  if ($2.fn.comp) { $$.last = $2.fn.last; *$2.last = $2.fn.comp; }
			}
		|	direct_abstract_declarator function_arglist
			{ $$.fold_flag = 0;
			  if ($1.fn.comp) { $$.last = $1.fn.last; *$1.last = $1.fn.comp; }
			  if ($1.fold_flag)
			    {
			      *$$.last = $2.comp;
			      $$.last = $2.last;
			    }
			  else
			    $$.fn = $2;
			}
		|	direct_abstract_declarator array_indicator
			{ $$.fn.comp = NULL; $$.fn.last = NULL; $$.fold_flag = 0;
			  if ($1.fn.comp) { $$.last = $1.fn.last; *$1.last = $1.fn.comp; }
			  *$1.last = $2;
			  $$.last = &d_right ($2);
			}
		|	array_indicator
			{ $$.fn.comp = NULL; $$.fn.last = NULL; $$.fold_flag = 0;
			  $$.comp = $1;
			  $$.last = &d_right ($1);
			}
		/* G++ has the following except for () and (type).  Then
		   (type) is handled in regcast_or_absdcl and () is handled
		   in fcast_or_absdcl.

		   However, this is only useful for function types, and
		   generates reduce/reduce conflicts with direct_declarator.
		   We're interested in pointer-to-function types, and in
		   functions, but not in function types - so leave this
		   out.  */
		/* |	function_arglist */
		;

abstract_declarator_fn
		:	ptr_operator
			{ $$.comp = $1.comp; $$.last = $1.last;
			  $$.fn.comp = NULL; $$.fn.last = NULL; $$.start = NULL; }
		|	ptr_operator abstract_declarator_fn
			{ $$ = $2;
			  if ($2.last)
			    *$$.last = $1.comp;
			  else
			    $$.comp = $1.comp;
			  $$.last = $1.last;
			}
		|	direct_abstract_declarator
			{ $$.comp = $1.comp; $$.last = $1.last; $$.fn = $1.fn; $$.start = NULL; }
		|	direct_abstract_declarator function_arglist COLONCOLON start
			{ $$.start = $4;
			  if ($1.fn.comp) { $$.last = $1.fn.last; *$1.last = $1.fn.comp; }
			  if ($1.fold_flag)
			    {
			      *$$.last = $2.comp;
			      $$.last = $2.last;
			    }
			  else
			    $$.fn = $2;
			}
		|	function_arglist start_opt
			{ $$.fn = $1;
			  $$.start = $2;
			  $$.comp = NULL; $$.last = NULL;
			}
		;

type		:	typespec_2
		|	typespec_2 abstract_declarator
			{ $$ = $2.comp;
			  *$2.last = $1;
			}
		;

declarator	:	ptr_operator declarator
			{ $$.comp = $2.comp;
			  $$.last = $1.last;
			  *$2.last = $1.comp; }
		|	direct_declarator
		;

direct_declarator
		:	'(' declarator ')'
			{ $$ = $2; }
		|	direct_declarator function_arglist
			{ $$.comp = $1.comp;
			  *$1.last = $2.comp;
			  $$.last = $2.last;
			}
		|	direct_declarator array_indicator
			{ $$.comp = $1.comp;
			  *$1.last = $2;
			  $$.last = &d_right ($2);
			}
		|	colon_ext_name
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_TYPED_NAME);
			  d_left ($$.comp) = $1;
			  $$.last = &d_right ($$.comp);
			}
		;

/* These are similar to declarator and direct_declarator except that they
   do not permit ( colon_ext_name ), which is ambiguous with a function
   argument list.  They also don't permit a few other forms with redundant
   parentheses around the colon_ext_name; any colon_ext_name in parentheses
   must be followed by an argument list or an array indicator, or preceded
   by a pointer.  */
declarator_1	:	ptr_operator declarator_1
			{ $$.comp = $2.comp;
			  $$.last = $1.last;
			  *$2.last = $1.comp; }
		|	colon_ext_name
			{ $$.comp = make_empty (DEMANGLE_COMPONENT_TYPED_NAME);
			  d_left ($$.comp) = $1;
			  $$.last = &d_right ($$.comp);
			}
		|	direct_declarator_1

			/* Function local variable or type.  The typespec to
			   our left is the type of the containing function. 
			   This should be OK, because function local types
			   can not be templates, so the return types of their
			   members will not be mangled.  If they are hopefully
			   they'll end up to the right of the ::.  */
		|	colon_ext_name function_arglist COLONCOLON start
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1, $2.comp);
			  $$.last = $2.last;
			  $$.comp = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$.comp, $4);
			}
		|	direct_declarator_1 function_arglist COLONCOLON start
			{ $$.comp = $1.comp;
			  *$1.last = $2.comp;
			  $$.last = $2.last;
			  $$.comp = fill_comp (DEMANGLE_COMPONENT_LOCAL_NAME, $$.comp, $4);
			}
		;

direct_declarator_1
		:	'(' ptr_operator declarator ')'
			{ $$.comp = $3.comp;
			  $$.last = $2.last;
			  *$3.last = $2.comp; }
		|	direct_declarator_1 function_arglist
			{ $$.comp = $1.comp;
			  *$1.last = $2.comp;
			  $$.last = $2.last;
			}
		|	direct_declarator_1 array_indicator
			{ $$.comp = $1.comp;
			  *$1.last = $2;
			  $$.last = &d_right ($2);
			}
		|	colon_ext_name function_arglist
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1, $2.comp);
			  $$.last = $2.last;
			}
		|	colon_ext_name array_indicator
			{ $$.comp = fill_comp (DEMANGLE_COMPONENT_TYPED_NAME, $1, $2);
			  $$.last = &d_right ($2);
			}
		;

exp	:	'(' exp1 ')'
		{ $$ = $2; }
	;

/* Silly trick.  Only allow '>' when parenthesized, in order to
   handle conflict with templates.  */
exp1	:	exp
	;

exp1	:	exp '>' exp
		{ $$ = d_binary (">", $1, $3); }
	;

/* References.  Not allowed everywhere in template parameters, only
   at the top level, but treat them as expressions in case they are wrapped
   in parentheses.  */
exp1	:	'&' start
		{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator ("&", 1), $2); }
	;

/* Expressions, not including the comma operator.  */
exp	:	'-' exp    %prec UNARY
		{ $$ = d_unary ("-", $2); }
	;

exp	:	'!' exp    %prec UNARY
		{ $$ = d_unary ("!", $2); }
	;

exp	:	'~' exp    %prec UNARY
		{ $$ = d_unary ("~", $2); }
	;

/* Casts.  First your normal C-style cast.  If exp is a LITERAL, just change
   its type.  */

exp	:	'(' type ')' exp  %prec UNARY
		{ if ($4->type == DEMANGLE_COMPONENT_LITERAL
		      || $4->type == DEMANGLE_COMPONENT_LITERAL_NEG)
		    {
		      $$ = $4;
		      d_left ($4) = $2;
		    }
		  else
		    $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
				      fill_comp (DEMANGLE_COMPONENT_CAST, $2, NULL),
				      $4);
		}
	;

/* Mangling does not differentiate between these, so we don't need to
   either.  */
exp	:	STATIC_CAST '<' type '>' '(' exp1 ')' %prec UNARY
		{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
				    fill_comp (DEMANGLE_COMPONENT_CAST, $3, NULL),
				    $6);
		}
	;

exp	:	DYNAMIC_CAST '<' type '>' '(' exp1 ')' %prec UNARY
		{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
				    fill_comp (DEMANGLE_COMPONENT_CAST, $3, NULL),
				    $6);
		}
	;

exp	:	REINTERPRET_CAST '<' type '>' '(' exp1 ')' %prec UNARY
		{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
				    fill_comp (DEMANGLE_COMPONENT_CAST, $3, NULL),
				    $6);
		}
	;

/* Another form of C++-style cast.  "type ( exp1 )" is not allowed (it's too
   ambiguous), but "name ( exp1 )" is.  Because we don't need to support
   function types, we can handle this unambiguously (the use of typespec_2
   prevents a silly, harmless conflict with qualifiers_opt).  This does not
   appear in demangler output so it's not a great loss if we need to
   disable it.  */
exp	:	typespec_2 '(' exp1 ')' %prec UNARY
		{ $$ = fill_comp (DEMANGLE_COMPONENT_UNARY,
				    fill_comp (DEMANGLE_COMPONENT_CAST, $1, NULL),
				    $3);
		}
	;

/* TO INVESTIGATE: ._0 style anonymous names; anonymous namespaces */

/* Binary operators in order of decreasing precedence.  */

exp	:	exp '*' exp
		{ $$ = d_binary ("*", $1, $3); }
	;

exp	:	exp '/' exp
		{ $$ = d_binary ("/", $1, $3); }
	;

exp	:	exp '%' exp
		{ $$ = d_binary ("%", $1, $3); }
	;

exp	:	exp '+' exp
		{ $$ = d_binary ("+", $1, $3); }
	;

exp	:	exp '-' exp
		{ $$ = d_binary ("-", $1, $3); }
	;

exp	:	exp LSH exp
		{ $$ = d_binary ("<<", $1, $3); }
	;

exp	:	exp RSH exp
		{ $$ = d_binary (">>", $1, $3); }
	;

exp	:	exp EQUAL exp
		{ $$ = d_binary ("==", $1, $3); }
	;

exp	:	exp NOTEQUAL exp
		{ $$ = d_binary ("!=", $1, $3); }
	;

exp	:	exp LEQ exp
		{ $$ = d_binary ("<=", $1, $3); }
	;

exp	:	exp GEQ exp
		{ $$ = d_binary (">=", $1, $3); }
	;

exp	:	exp '<' exp
		{ $$ = d_binary ("<", $1, $3); }
	;

exp	:	exp '&' exp
		{ $$ = d_binary ("&", $1, $3); }
	;

exp	:	exp '^' exp
		{ $$ = d_binary ("^", $1, $3); }
	;

exp	:	exp '|' exp
		{ $$ = d_binary ("|", $1, $3); }
	;

exp	:	exp ANDAND exp
		{ $$ = d_binary ("&&", $1, $3); }
	;

exp	:	exp OROR exp
		{ $$ = d_binary ("||", $1, $3); }
	;

/* Not 100% sure these are necessary, but they're harmless.  */
exp	:	exp ARROW NAME
		{ $$ = d_binary ("->", $1, $3); }
	;

exp	:	exp '.' NAME
		{ $$ = d_binary (".", $1, $3); }
	;

exp	:	exp '?' exp ':' exp	%prec '?'
		{ $$ = fill_comp (DEMANGLE_COMPONENT_TRINARY, make_operator ("?", 3),
				    fill_comp (DEMANGLE_COMPONENT_TRINARY_ARG1, $1,
						 fill_comp (DEMANGLE_COMPONENT_TRINARY_ARG2, $3, $5)));
		}
	;
			  
exp	:	INT
	;

/* Not generally allowed.  */
exp	:	FLOAT
	;

exp	:	SIZEOF '(' type ')'	%prec UNARY
		{ $$ = d_unary ("sizeof", $3); }
	;

/* C++.  */
exp     :       TRUEKEYWORD    
		{ struct demangle_component *i;
		  i = make_name ("1", 1);
		  $$ = fill_comp (DEMANGLE_COMPONENT_LITERAL,
				    make_builtin_type ("bool"),
				    i);
		}
	;

exp     :       FALSEKEYWORD   
		{ struct demangle_component *i;
		  i = make_name ("0", 1);
		  $$ = fill_comp (DEMANGLE_COMPONENT_LITERAL,
				    make_builtin_type ("bool"),
				    i);
		}
	;

/* end of C++.  */

%%

/* Apply QUALIFIERS to LHS and return a qualified component.  IS_METHOD
   is set if LHS is a method, in which case the qualifiers are logically
   applied to "this".  We apply qualifiers in a consistent order; LHS
   may already be qualified; duplicate qualifiers are not created.  */

struct demangle_component *
d_qualify (struct demangle_component *lhs, int qualifiers, int is_method)
{
  struct demangle_component **inner_p;
  enum demangle_component_type type;

  /* For now the order is CONST (innermost), VOLATILE, RESTRICT.  */

#define HANDLE_QUAL(TYPE, MTYPE, QUAL)				\
  if ((qualifiers & QUAL) && (type != TYPE) && (type != MTYPE))	\
    {								\
      *inner_p = fill_comp (is_method ? MTYPE : TYPE,	\
			      *inner_p, NULL);			\
      inner_p = &d_left (*inner_p);				\
      type = (*inner_p)->type;					\
    }								\
  else if (type == TYPE || type == MTYPE)			\
    {								\
      inner_p = &d_left (*inner_p);				\
      type = (*inner_p)->type;					\
    }

  inner_p = &lhs;

  type = (*inner_p)->type;

  HANDLE_QUAL (DEMANGLE_COMPONENT_RESTRICT, DEMANGLE_COMPONENT_RESTRICT_THIS, QUAL_RESTRICT);
  HANDLE_QUAL (DEMANGLE_COMPONENT_VOLATILE, DEMANGLE_COMPONENT_VOLATILE_THIS, QUAL_VOLATILE);
  HANDLE_QUAL (DEMANGLE_COMPONENT_CONST, DEMANGLE_COMPONENT_CONST_THIS, QUAL_CONST);

  return lhs;
}

/* Return a builtin type corresponding to FLAGS.  */

static struct demangle_component *
d_int_type (int flags)
{
  const char *name;

  switch (flags)
    {
    case INT_SIGNED | INT_CHAR:
      name = "signed char";
      break;
    case INT_CHAR:
      name = "char";
      break;
    case INT_UNSIGNED | INT_CHAR:
      name = "unsigned char";
      break;
    case 0:
    case INT_SIGNED:
      name = "int";
      break;
    case INT_UNSIGNED:
      name = "unsigned int";
      break;
    case INT_LONG:
    case INT_SIGNED | INT_LONG:
      name = "long";
      break;
    case INT_UNSIGNED | INT_LONG:
      name = "unsigned long";
      break;
    case INT_SHORT:
    case INT_SIGNED | INT_SHORT:
      name = "short";
      break;
    case INT_UNSIGNED | INT_SHORT:
      name = "unsigned short";
      break;
    case INT_LLONG | INT_LONG:
    case INT_SIGNED | INT_LLONG | INT_LONG:
      name = "long long";
      break;
    case INT_UNSIGNED | INT_LLONG | INT_LONG:
      name = "unsigned long long";
      break;
    default:
      return NULL;
    }

  return make_builtin_type (name);
}

/* Wrapper to create a unary operation.  */

static struct demangle_component *
d_unary (const char *name, struct demangle_component *lhs)
{
  return fill_comp (DEMANGLE_COMPONENT_UNARY, make_operator (name, 1), lhs);
}

/* Wrapper to create a binary operation.  */

static struct demangle_component *
d_binary (const char *name, struct demangle_component *lhs, struct demangle_component *rhs)
{
  return fill_comp (DEMANGLE_COMPONENT_BINARY, make_operator (name, 2),
		      fill_comp (DEMANGLE_COMPONENT_BINARY_ARGS, lhs, rhs));
}

/* Find the end of a symbol name starting at LEXPTR.  */

static const char *
symbol_end (const char *lexptr)
{
  const char *p = lexptr;

  while (*p && (ISALNUM (*p) || *p == '_' || *p == '$' || *p == '.'))
    p++;

  return p;
}

/* Take care of parsing a number (anything that starts with a digit).
   The number starts at P and contains LEN characters.  Store the result in
   YYLVAL.  */

static int
parse_number (const char *p, int len, int parsed_float)
{
  int unsigned_p = 0;

  /* Number of "L" suffixes encountered.  */
  int long_p = 0;

  struct demangle_component *signed_type;
  struct demangle_component *unsigned_type;
  struct demangle_component *type, *name;
  enum demangle_component_type literal_type;

  if (p[0] == '-')
    {
      literal_type = DEMANGLE_COMPONENT_LITERAL_NEG;
      p++;
      len--;
    }
  else
    literal_type = DEMANGLE_COMPONENT_LITERAL;

  if (parsed_float)
    {
      /* It's a float since it contains a point or an exponent.  */
      char c;

      /* The GDB lexer checks the result of scanf at this point.  Not doing
         this leaves our error checking slightly weaker but only for invalid
         data.  */

      /* See if it has `f' or `l' suffix (float or long double).  */

      c = TOLOWER (p[len - 1]);

      if (c == 'f')
      	{
      	  len--;
      	  type = make_builtin_type ("float");
      	}
      else if (c == 'l')
	{
	  len--;
	  type = make_builtin_type ("long double");
	}
      else if (ISDIGIT (c) || c == '.')
	type = make_builtin_type ("double");
      else
	return ERROR;

      name = make_name (p, len);
      yylval.comp = fill_comp (literal_type, type, name);

      return FLOAT;
    }

  /* This treats 0x1 and 1 as different literals.  We also do not
     automatically generate unsigned types.  */

  long_p = 0;
  unsigned_p = 0;
  while (len > 0)
    {
      if (p[len - 1] == 'l' || p[len - 1] == 'L')
	{
	  len--;
	  long_p++;
	  continue;
	}
      if (p[len - 1] == 'u' || p[len - 1] == 'U')
	{
	  len--;
	  unsigned_p++;
	  continue;
	}
      break;
    }

  if (long_p == 0)
    {
      unsigned_type = make_builtin_type ("unsigned int");
      signed_type = make_builtin_type ("int");
    }
  else if (long_p == 1)
    {
      unsigned_type = make_builtin_type ("unsigned long");
      signed_type = make_builtin_type ("long");
    }
  else
    {
      unsigned_type = make_builtin_type ("unsigned long long");
      signed_type = make_builtin_type ("long long");
    }

   if (unsigned_p)
     type = unsigned_type;
   else
     type = signed_type;

   name = make_name (p, len);
   yylval.comp = fill_comp (literal_type, type, name);

   return INT;
}

static char backslashable[] = "abefnrtv";
static char represented[] = "\a\b\e\f\n\r\t\v";

/* Translate the backslash the way we would in the host character set.  */
static int
c_parse_backslash (int host_char, int *target_char)
{
  const char *ix;
  ix = strchr (backslashable, host_char);
  if (! ix)
    return 0;
  else
    *target_char = represented[ix - backslashable];
  return 1;
}

/* Parse a C escape sequence.  STRING_PTR points to a variable
   containing a pointer to the string to parse.  That pointer
   should point to the character after the \.  That pointer
   is updated past the characters we use.  The value of the
   escape sequence is returned.

   A negative value means the sequence \ newline was seen,
   which is supposed to be equivalent to nothing at all.

   If \ is followed by a null character, we return a negative
   value and leave the string pointer pointing at the null character.

   If \ is followed by 000, we return 0 and leave the string pointer
   after the zeros.  A value of 0 does not mean end of string.  */

static int
parse_escape (const char **string_ptr)
{
  int target_char;
  int c = *(*string_ptr)++;
  if (c_parse_backslash (c, &target_char))
    return target_char;
  else
    switch (c)
      {
      case '\n':
	return -2;
      case 0:
	(*string_ptr)--;
	return 0;
      case '^':
	{
	  c = *(*string_ptr)++;

	  if (c == '?')
	    return 0177;
	  else if (c == '\\')
	    target_char = parse_escape (string_ptr);
	  else
	    target_char = c;

	  /* Now target_char is something like `c', and we want to find
	     its control-character equivalent.  */
	  target_char = target_char & 037;

	  return target_char;
	}

      case '0':
      case '1':
      case '2':
      case '3':
      case '4':
      case '5':
      case '6':
      case '7':
	{
	  int i = c - '0';
	  int count = 0;
	  while (++count < 3)
	    {
	      c = (**string_ptr);
	      if (c >= '0' && c <= '7')
		{
		  (*string_ptr)++;
		  i *= 8;
		  i += c - '0';
		}
	      else
		{
		  break;
		}
	    }
	  return i;
	}
      default:
	return target_char;
      }
}

#define HANDLE_SPECIAL(string, comp)				\
  if (strncmp (tokstart, string, sizeof (string) - 1) == 0)	\
    {								\
      lexptr = tokstart + sizeof (string) - 1;			\
      yylval.lval = comp;					\
      return DEMANGLER_SPECIAL;					\
    }

#define HANDLE_TOKEN2(string, token)			\
  if (lexptr[1] == string[1])				\
    {							\
      lexptr += 2;					\
      yylval.opname = string;				\
      return token;					\
    }      

#define HANDLE_TOKEN3(string, token)			\
  if (lexptr[1] == string[1] && lexptr[2] == string[2])	\
    {							\
      lexptr += 3;					\
      yylval.opname = string;				\
      return token;					\
    }      

/* Read one token, getting characters through LEXPTR.  */

static int
yylex (void)
{
  int c;
  int namelen;
  const char *tokstart, *tokptr;

 retry:
  prev_lexptr = lexptr;
  tokstart = lexptr;

  switch (c = *tokstart)
    {
    case 0:
      return 0;

    case ' ':
    case '\t':
    case '\n':
      lexptr++;
      goto retry;

    case '\'':
      /* We either have a character constant ('0' or '\177' for example)
	 or we have a quoted symbol reference ('foo(int,int)' in C++
	 for example). */
      lexptr++;
      c = *lexptr++;
      if (c == '\\')
	c = parse_escape (&lexptr);
      else if (c == '\'')
	{
	  yyerror ("empty character constant");
	  return ERROR;
	}

      c = *lexptr++;
      if (c != '\'')
	{
	  yyerror ("invalid character constant");
	  return ERROR;
	}

      /* FIXME: We should refer to a canonical form of the character,
	 presumably the same one that appears in manglings - the decimal
	 representation.  But if that isn't in our input then we have to
	 allocate memory for it somewhere.  */
      yylval.comp = fill_comp (DEMANGLE_COMPONENT_LITERAL,
				 make_builtin_type ("char"),
				 make_name (tokstart, lexptr - tokstart));

      return INT;

    case '(':
      if (strncmp (tokstart, "(anonymous namespace)", 21) == 0)
	{
	  lexptr += 21;
	  yylval.comp = make_name ("(anonymous namespace)",
				     sizeof "(anonymous namespace)" - 1);
	  return NAME;
	}
	/* FALL THROUGH */

    case ')':
    case ',':
      lexptr++;
      return c;

    case '.':
      if (lexptr[1] == '.' && lexptr[2] == '.')
	{
	  lexptr += 3;
	  return ELLIPSIS;
	}

      /* Might be a floating point number.  */
      if (lexptr[1] < '0' || lexptr[1] > '9')
	goto symbol;		/* Nope, must be a symbol. */

      goto try_number;

    case '-':
      HANDLE_TOKEN2 ("-=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 ("--", DECREMENT);
      HANDLE_TOKEN2 ("->", ARROW);

      /* For construction vtables.  This is kind of hokey.  */
      if (strncmp (tokstart, "-in-", 4) == 0)
	{
	  lexptr += 4;
	  return CONSTRUCTION_IN;
	}

      if (lexptr[1] < '0' || lexptr[1] > '9')
	{
	  lexptr++;
	  return '-';
	}
      /* FALL THRU into number case.  */

    try_number:
    case '0':
    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9':
      {
	/* It's a number.  */
	int got_dot = 0, got_e = 0, toktype;
	const char *p = tokstart;
	int hex = 0;

	if (c == '-')
	  p++;

	if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
	  {
	    p += 2;
	    hex = 1;
	  }
	else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D'))
	  {
	    p += 2;
	    hex = 0;
	  }

	for (;; ++p)
	  {
	    /* This test includes !hex because 'e' is a valid hex digit
	       and thus does not indicate a floating point number when
	       the radix is hex.  */
	    if (!hex && !got_e && (*p == 'e' || *p == 'E'))
	      got_dot = got_e = 1;
	    /* This test does not include !hex, because a '.' always indicates
	       a decimal floating point number regardless of the radix.

	       NOTE drow/2005-03-09: This comment is not accurate in C99;
	       however, it's not clear that all the floating point support
	       in this file is doing any good here.  */
	    else if (!got_dot && *p == '.')
	      got_dot = 1;
	    else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
		     && (*p == '-' || *p == '+'))
	      /* This is the sign of the exponent, not the end of the
		 number.  */
	      continue;
	    /* We will take any letters or digits.  parse_number will
	       complain if past the radix, or if L or U are not final.  */
	    else if (! ISALNUM (*p))
	      break;
	  }
	toktype = parse_number (tokstart, p - tokstart, got_dot|got_e);
        if (toktype == ERROR)
	  {
	    char *err_copy = (char *) alloca (p - tokstart + 1);

	    memcpy (err_copy, tokstart, p - tokstart);
	    err_copy[p - tokstart] = 0;
	    yyerror ("invalid number");
	    return ERROR;
	  }
	lexptr = p;
	return toktype;
      }

    case '+':
      HANDLE_TOKEN2 ("+=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 ("++", INCREMENT);
      lexptr++;
      return c;
    case '*':
      HANDLE_TOKEN2 ("*=", ASSIGN_MODIFY);
      lexptr++;
      return c;
    case '/':
      HANDLE_TOKEN2 ("/=", ASSIGN_MODIFY);
      lexptr++;
      return c;
    case '%':
      HANDLE_TOKEN2 ("%=", ASSIGN_MODIFY);
      lexptr++;
      return c;
    case '|':
      HANDLE_TOKEN2 ("|=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 ("||", OROR);
      lexptr++;
      return c;
    case '&':
      HANDLE_TOKEN2 ("&=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 ("&&", ANDAND);
      lexptr++;
      return c;
    case '^':
      HANDLE_TOKEN2 ("^=", ASSIGN_MODIFY);
      lexptr++;
      return c;
    case '!':
      HANDLE_TOKEN2 ("!=", NOTEQUAL);
      lexptr++;
      return c;
    case '<':
      HANDLE_TOKEN3 ("<<=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 ("<=", LEQ);
      HANDLE_TOKEN2 ("<<", LSH);
      lexptr++;
      return c;
    case '>':
      HANDLE_TOKEN3 (">>=", ASSIGN_MODIFY);
      HANDLE_TOKEN2 (">=", GEQ);
      HANDLE_TOKEN2 (">>", RSH);
      lexptr++;
      return c;
    case '=':
      HANDLE_TOKEN2 ("==", EQUAL);
      lexptr++;
      return c;
    case ':':
      HANDLE_TOKEN2 ("::", COLONCOLON);
      lexptr++;
      return c;

    case '[':
    case ']':
    case '?':
    case '@':
    case '~':
    case '{':
    case '}':
    symbol:
      lexptr++;
      return c;

    case '"':
      /* These can't occur in C++ names.  */
      yyerror ("unexpected string literal");
      return ERROR;
    }

  if (!(c == '_' || c == '$' || ISALPHA (c)))
    {
      /* We must have come across a bad character (e.g. ';').  */
      yyerror ("invalid character");
      return ERROR;
    }

  /* It's a name.  See how long it is.  */
  namelen = 0;
  do
    c = tokstart[++namelen];
  while (ISALNUM (c) || c == '_' || c == '$');

  lexptr += namelen;

  /* Catch specific keywords.  Notice that some of the keywords contain
     spaces, and are sorted by the length of the first word.  They must
     all include a trailing space in the string comparison.  */
  switch (namelen)
    {
    case 16:
      if (strncmp (tokstart, "reinterpret_cast", 16) == 0)
        return REINTERPRET_CAST;
      break;
    case 12:
      if (strncmp (tokstart, "construction vtable for ", 24) == 0)
	{
	  lexptr = tokstart + 24;
	  return CONSTRUCTION_VTABLE;
	}
      if (strncmp (tokstart, "dynamic_cast", 12) == 0)
        return DYNAMIC_CAST;
      break;
    case 11:
      if (strncmp (tokstart, "static_cast", 11) == 0)
        return STATIC_CAST;
      break;
    case 9:
      HANDLE_SPECIAL ("covariant return thunk to ", DEMANGLE_COMPONENT_COVARIANT_THUNK);
      HANDLE_SPECIAL ("reference temporary for ", DEMANGLE_COMPONENT_REFTEMP);
      break;
    case 8:
      HANDLE_SPECIAL ("typeinfo for ", DEMANGLE_COMPONENT_TYPEINFO);
      HANDLE_SPECIAL ("typeinfo fn for ", DEMANGLE_COMPONENT_TYPEINFO_FN);
      HANDLE_SPECIAL ("typeinfo name for ", DEMANGLE_COMPONENT_TYPEINFO_NAME);
      if (strncmp (tokstart, "operator", 8) == 0)
	return OPERATOR;
      if (strncmp (tokstart, "restrict", 8) == 0)
	return RESTRICT;
      if (strncmp (tokstart, "unsigned", 8) == 0)
	return UNSIGNED;
      if (strncmp (tokstart, "template", 8) == 0)
	return TEMPLATE;
      if (strncmp (tokstart, "volatile", 8) == 0)
	return VOLATILE_KEYWORD;
      break;
    case 7:
      HANDLE_SPECIAL ("virtual thunk to ", DEMANGLE_COMPONENT_VIRTUAL_THUNK);
      if (strncmp (tokstart, "wchar_t", 7) == 0)
	return WCHAR_T;
      break;
    case 6:
      if (strncmp (tokstart, "global constructors keyed to ", 29) == 0)
	{
	  const char *p;
	  lexptr = tokstart + 29;
	  yylval.typed_val_int.val = GLOBAL_CONSTRUCTORS;
	  /* Find the end of the symbol.  */
	  p = symbol_end (lexptr);
	  yylval.typed_val_int.type = make_name (lexptr, p - lexptr);
	  lexptr = p;
	  return GLOBAL;
	}
      if (strncmp (tokstart, "global destructors keyed to ", 28) == 0)
	{
	  const char *p;
	  lexptr = tokstart + 28;
	  yylval.typed_val_int.val = GLOBAL_DESTRUCTORS;
	  /* Find the end of the symbol.  */
	  p = symbol_end (lexptr);
	  yylval.typed_val_int.type = make_name (lexptr, p - lexptr);
	  lexptr = p;
	  return GLOBAL;
	}

      HANDLE_SPECIAL ("vtable for ", DEMANGLE_COMPONENT_VTABLE);
      if (strncmp (tokstart, "delete", 6) == 0)
	return DELETE;
      if (strncmp (tokstart, "struct", 6) == 0)
	return STRUCT;
      if (strncmp (tokstart, "signed", 6) == 0)
	return SIGNED_KEYWORD;
      if (strncmp (tokstart, "sizeof", 6) == 0)
	return SIZEOF;
      if (strncmp (tokstart, "double", 6) == 0)
	return DOUBLE_KEYWORD;
      break;
    case 5:
      HANDLE_SPECIAL ("guard variable for ", DEMANGLE_COMPONENT_GUARD);
      if (strncmp (tokstart, "false", 5) == 0)
	return FALSEKEYWORD;
      if (strncmp (tokstart, "class", 5) == 0)
	return CLASS;
      if (strncmp (tokstart, "union", 5) == 0)
	return UNION;
      if (strncmp (tokstart, "float", 5) == 0)
	return FLOAT_KEYWORD;
      if (strncmp (tokstart, "short", 5) == 0)
	return SHORT;
      if (strncmp (tokstart, "const", 5) == 0)
	return CONST_KEYWORD;
      break;
    case 4:
      if (strncmp (tokstart, "void", 4) == 0)
	return VOID;
      if (strncmp (tokstart, "bool", 4) == 0)
	return BOOL;
      if (strncmp (tokstart, "char", 4) == 0)
	return CHAR;
      if (strncmp (tokstart, "enum", 4) == 0)
	return ENUM;
      if (strncmp (tokstart, "long", 4) == 0)
	return LONG;
      if (strncmp (tokstart, "true", 4) == 0)
	return TRUEKEYWORD;
      break;
    case 3:
      HANDLE_SPECIAL ("VTT for ", DEMANGLE_COMPONENT_VTT);
      HANDLE_SPECIAL ("non-virtual thunk to ", DEMANGLE_COMPONENT_THUNK);
      if (strncmp (tokstart, "new", 3) == 0)
	return NEW;
      if (strncmp (tokstart, "int", 3) == 0)
	return INT_KEYWORD;
      break;
    default:
      break;
    }

  yylval.comp = make_name (tokstart, namelen);
  return NAME;
}

static void
yyerror (char *msg)
{
  if (global_errmsg)
    return;

  error_lexptr = prev_lexptr;
  global_errmsg = msg ? msg : "parse error";
}

/* Allocate all the components we'll need to build a tree.  We generally
   allocate too many components, but the extra memory usage doesn't hurt
   because the trees are temporary.  If we start keeping the trees for
   a longer lifetime we'll need to be cleverer.  */
static struct demangle_info *
allocate_info (int comps)
{
  struct demangle_info *ret;

  ret = malloc (sizeof (struct demangle_info)
		+ sizeof (struct demangle_component) * (comps - 1));
  ret->used = 0;
  return ret;
}

/* Convert RESULT to a string.  The return value is allocated
   using xmalloc.  ESTIMATED_LEN is used only as a guide to the
   length of the result.  This functions handles a few cases that
   cplus_demangle_print does not, specifically the global destructor
   and constructor labels.  */

char *
cp_comp_to_string (struct demangle_component *result, int estimated_len)
{
  char *str, *prefix = NULL, *buf;
  size_t err = 0;

  if (result->type == GLOBAL_DESTRUCTORS)
    {
      result = d_left (result);
      prefix = "global destructors keyed to ";
    }
  else if (result->type == GLOBAL_CONSTRUCTORS)
    {
      result = d_left (result);
      prefix = "global constructors keyed to ";
    }

  str = cplus_demangle_print (DMGL_PARAMS | DMGL_ANSI, result, estimated_len, &err);
  if (str == NULL)
    return NULL;

  if (prefix == NULL)
    return str;

  buf = malloc (strlen (str) + strlen (prefix) + 1);
  strcpy (buf, prefix);
  strcat (buf, str);
  free (str);
  return (buf);
}

/* Convert a demangled name to a demangle_component tree.  *MEMORY is set to the
   block of used memory that should be freed when finished with the
   tree.  On error, NULL is returned, and an error message will be
   set in *ERRMSG (which does not need to be freed).  */

struct demangle_component *
cp_demangled_name_to_comp (const char *demangled_name, void **memory,
			   const char **errmsg)
{
  static char errbuf[60];
  struct demangle_component *result;

  int len = strlen (demangled_name);

  len = len + len / 8;
  prev_lexptr = lexptr = demangled_name;
  error_lexptr = NULL;
  global_errmsg = NULL;

  demangle_info = allocate_info (len);

  if (yyparse ())
    {
      if (global_errmsg && errmsg)
	{
	  snprintf (errbuf, sizeof (errbuf) - 2, "%s, near `%s",
		    global_errmsg, error_lexptr);
	  strcat (errbuf, "'");
	  *errmsg = errbuf;
	}
      free (demangle_info);
      return NULL;
    }

  *memory = demangle_info;
  result = global_result;
  global_result = NULL;

  return result;
}

#ifdef TEST_CPNAMES

static void
cp_print (struct demangle_component *result)
{
  char *str;
  size_t err = 0;

  if (result->type == GLOBAL_DESTRUCTORS)
    {
      result = d_left (result);
      fputs ("global destructors keyed to ", stdout);
    }
  else if (result->type == GLOBAL_CONSTRUCTORS)
    {
      result = d_left (result);
      fputs ("global constructors keyed to ", stdout);
    }

  str = cplus_demangle_print (DMGL_PARAMS | DMGL_ANSI, result, 64, &err);
  if (str == NULL)
    return;

  fputs (str, stdout);

  free (str);
}

static char
trim_chars (char *lexptr, char **extra_chars)
{
  char *p = (char *) symbol_end (lexptr);
  char c = 0;

  if (*p)
    {
      c = *p;
      *p = 0;
      *extra_chars = p + 1;
    }

  return c;
}

int
main (int argc, char **argv)
{
  char *str2, *extra_chars, c;
  char buf[65536];
  int arg;
  const char *errmsg;
  void *memory;
  struct demangle_component *result;

  arg = 1;
  if (argv[arg] && strcmp (argv[arg], "--debug") == 0)
    {
      yydebug = 1;
      arg++;
    }

  if (argv[arg] == NULL)
    while (fgets (buf, 65536, stdin) != NULL)
      {
	int len;
	buf[strlen (buf) - 1] = 0;
	/* Use DMGL_VERBOSE to get expanded standard substitutions.  */
	c = trim_chars (buf, &extra_chars);
	str2 = cplus_demangle (buf, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE);
	if (str2 == NULL)
	  {
	    /* printf ("Demangling error\n"); */
	    if (c)
	      printf ("%s%c%s\n", buf, c, extra_chars);
	    else
	      printf ("%s\n", buf);
	    continue;
	  }
	result = cp_demangled_name_to_comp (str2, &memory, &errmsg);
	if (result == NULL)
	  {
	    fputs (errmsg, stderr);
	    fputc ('\n', stderr);
	    continue;
	  }

	cp_print (result);
	free (memory);

	free (str2);
	if (c)
	  {
	    putchar (c);
	    fputs (extra_chars, stdout);
	  }
	putchar ('\n');
      }
  else
    {
      result = cp_demangled_name_to_comp (argv[arg], &memory, &errmsg);
      if (result == NULL)
	{
	  fputs (errmsg, stderr);
	  fputc ('\n', stderr);
	  return 0;
	}
      cp_print (result);
      putchar ('\n');
      free (memory);
    }
  return 0;
}

#endif