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1 /* A Bison parser, made by GNU Bison 2.1a. */
2
3 /* Skeleton parser for Yacc-like parsing with Bison,
4 Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA. */
20
21 /* As a special exception, when this file is copied by Bison into a
22 Bison output file, you may use that output file without restriction.
23 This special exception was added by the Free Software Foundation
24 in version 1.24 of Bison. */
25
26 /* Written by Richard Stallman by simplifying the original so called
27 ``semantic'' parser. */
28
29 /* All symbols defined below should begin with yy or YY, to avoid
30 infringing on user name space. This should be done even for local
31 variables, as they might otherwise be expanded by user macros.
32 There are some unavoidable exceptions within include files to
33 define necessary library symbols; they are noted "INFRINGES ON
34 USER NAME SPACE" below. */
35
36 /* Identify Bison output. */
37 #define YYBISON 1
38
39 /* Bison version. */
40 #define YYBISON_VERSION "2.1a"
41
42 /* Skeleton name. */
43 #define YYSKELETON_NAME "yacc.c"
44
45 /* Pure parsers. */
46 #define YYPURE 1
47
48 /* Using locations. */
49 #define YYLSP_NEEDED 1
50
51 /* Substitute the variable and function names. */
52 #define yyparse gram_parse
53 #define yylex gram_lex
54 #define yyerror gram_error
55 #define yylval gram_lval
56 #define yychar gram_char
57 #define yydebug gram_debug
58 #define yynerrs gram_nerrs
59 #define yylloc gram_lloc
60
61 /* Tokens. */
62 #ifndef YYTOKENTYPE
63 # define YYTOKENTYPE
64 /* Put the tokens into the symbol table, so that GDB and other debuggers
65 know about them. */
66 enum yytokentype {
67 GRAM_EOF = 0,
68 STRING = 258,
69 INT = 259,
70 PERCENT_TOKEN = 260,
71 PERCENT_NTERM = 261,
72 PERCENT_TYPE = 262,
73 PERCENT_DESTRUCTOR = 263,
74 PERCENT_PRINTER = 264,
75 PERCENT_UNION = 265,
76 PERCENT_LEFT = 266,
77 PERCENT_RIGHT = 267,
78 PERCENT_NONASSOC = 268,
79 PERCENT_PREC = 269,
80 PERCENT_DPREC = 270,
81 PERCENT_MERGE = 271,
82 PERCENT_DEBUG = 272,
83 PERCENT_DEFAULT_PREC = 273,
84 PERCENT_DEFINE = 274,
85 PERCENT_DEFINES = 275,
86 PERCENT_ERROR_VERBOSE = 276,
87 PERCENT_EXPECT = 277,
88 PERCENT_EXPECT_RR = 278,
89 PERCENT_FILE_PREFIX = 279,
90 PERCENT_GLR_PARSER = 280,
91 PERCENT_INITIAL_ACTION = 281,
92 PERCENT_LEX_PARAM = 282,
93 PERCENT_LOCATIONS = 283,
94 PERCENT_NAME_PREFIX = 284,
95 PERCENT_NO_DEFAULT_PREC = 285,
96 PERCENT_NO_LINES = 286,
97 PERCENT_NONDETERMINISTIC_PARSER = 287,
98 PERCENT_OUTPUT = 288,
99 PERCENT_PARSE_PARAM = 289,
100 PERCENT_PURE_PARSER = 290,
101 PERCENT_REQUIRE = 291,
102 PERCENT_SKELETON = 292,
103 PERCENT_START = 293,
104 PERCENT_TOKEN_TABLE = 294,
105 PERCENT_VERBOSE = 295,
106 PERCENT_YACC = 296,
107 TYPE = 297,
108 EQUAL = 298,
109 SEMICOLON = 299,
110 PIPE = 300,
111 ID = 301,
112 ID_COLON = 302,
113 PERCENT_PERCENT = 303,
114 PROLOGUE = 304,
115 EPILOGUE = 305,
116 BRACED_CODE = 306
117 };
118 #endif
119 /* Tokens. */
120 #define GRAM_EOF 0
121 #define STRING 258
122 #define INT 259
123 #define PERCENT_TOKEN 260
124 #define PERCENT_NTERM 261
125 #define PERCENT_TYPE 262
126 #define PERCENT_DESTRUCTOR 263
127 #define PERCENT_PRINTER 264
128 #define PERCENT_UNION 265
129 #define PERCENT_LEFT 266
130 #define PERCENT_RIGHT 267
131 #define PERCENT_NONASSOC 268
132 #define PERCENT_PREC 269
133 #define PERCENT_DPREC 270
134 #define PERCENT_MERGE 271
135 #define PERCENT_DEBUG 272
136 #define PERCENT_DEFAULT_PREC 273
137 #define PERCENT_DEFINE 274
138 #define PERCENT_DEFINES 275
139 #define PERCENT_ERROR_VERBOSE 276
140 #define PERCENT_EXPECT 277
141 #define PERCENT_EXPECT_RR 278
142 #define PERCENT_FILE_PREFIX 279
143 #define PERCENT_GLR_PARSER 280
144 #define PERCENT_INITIAL_ACTION 281
145 #define PERCENT_LEX_PARAM 282
146 #define PERCENT_LOCATIONS 283
147 #define PERCENT_NAME_PREFIX 284
148 #define PERCENT_NO_DEFAULT_PREC 285
149 #define PERCENT_NO_LINES 286
150 #define PERCENT_NONDETERMINISTIC_PARSER 287
151 #define PERCENT_OUTPUT 288
152 #define PERCENT_PARSE_PARAM 289
153 #define PERCENT_PURE_PARSER 290
154 #define PERCENT_REQUIRE 291
155 #define PERCENT_SKELETON 292
156 #define PERCENT_START 293
157 #define PERCENT_TOKEN_TABLE 294
158 #define PERCENT_VERBOSE 295
159 #define PERCENT_YACC 296
160 #define TYPE 297
161 #define EQUAL 298
162 #define SEMICOLON 299
163 #define PIPE 300
164 #define ID 301
165 #define ID_COLON 302
166 #define PERCENT_PERCENT 303
167 #define PROLOGUE 304
168 #define EPILOGUE 305
169 #define BRACED_CODE 306
170
171
172
173
174 /* Copy the first part of user declarations. */
175 #line 1 "../../src/parse-gram.y"
176 /* Bison Grammar Parser -*- C -*-
177
178 Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
179
180 This file is part of Bison, the GNU Compiler Compiler.
181
182 This program is free software; you can redistribute it and/or modify
183 it under the terms of the GNU General Public License as published by
184 the Free Software Foundation; either version 2 of the License, or
185 (at your option) any later version.
186
187 This program is distributed in the hope that it will be useful,
188 but WITHOUT ANY WARRANTY; without even the implied warranty of
189 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
190 GNU General Public License for more details.
191
192 You should have received a copy of the GNU General Public License
193 along with this program; if not, write to the Free Software
194 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
195 02110-1301 USA
196 */
197
198 #include "system.h"
199
200 #include "complain.h"
201 #include "conflicts.h"
202 #include "files.h"
203 #include "getargs.h"
204 #include "gram.h"
205 #include "muscle_tab.h"
206 #include "output.h"
207 #include "quotearg.h"
208 #include "reader.h"
209 #include "symlist.h"
210 #include "strverscmp.h"
211
212 #define YYLLOC_DEFAULT(Current, Rhs, N) (Current) = lloc_default (Rhs, N)
213 static YYLTYPE lloc_default (YYLTYPE const *, int);
214
215 #define YY_LOCATION_PRINT(File, Loc) \
216 location_print (File, Loc)
217
218 static void version_check (location const *loc, char const *version);
219
220 /* Request detailed syntax error messages, and pass them to GRAM_ERROR.
221 FIXME: depends on the undocumented availability of YYLLOC. */
222 #undef yyerror
223 #define yyerror(Msg) \
224 gram_error (&yylloc, Msg)
225 static void gram_error (location const *, char const *);
226
227 static void add_param (char const *, char *, location);
228
229 static symbol_class current_class = unknown_sym;
230 static uniqstr current_type = 0;
231 symbol *current_lhs;
232 location current_lhs_location;
233 assoc current_assoc;
234 static int current_prec = 0;
235
236
237 /* Enabling traces. */
238 #ifndef YYDEBUG
239 # define YYDEBUG 1
240 #endif
241
242 /* Enabling verbose error messages. */
243 #ifdef YYERROR_VERBOSE
244 # undef YYERROR_VERBOSE
245 # define YYERROR_VERBOSE 1
246 #else
247 # define YYERROR_VERBOSE 1
248 #endif
249
250 /* Enabling the token table. */
251 #ifndef YYTOKEN_TABLE
252 # define YYTOKEN_TABLE 0
253 #endif
254
255 #if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
256 #line 82 "../../src/parse-gram.y"
257 typedef union YYSTYPE {
258 symbol *symbol;
259 symbol_list *list;
260 int integer;
261 char *chars;
262 assoc assoc;
263 uniqstr uniqstr;
264 } YYSTYPE;
265 /* Line 196 of yacc.c. */
266 #line 267 "../../src/parse-gram.c"
267 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
268 # define YYSTYPE_IS_DECLARED 1
269 # define YYSTYPE_IS_TRIVIAL 1
270 #endif
271
272 #if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
273 typedef struct YYLTYPE
274 {
275 int first_line;
276 int first_column;
277 int last_line;
278 int last_column;
279 } YYLTYPE;
280 # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
281 # define YYLTYPE_IS_DECLARED 1
282 # define YYLTYPE_IS_TRIVIAL 1
283 #endif
284
285
286 /* Copy the second part of user declarations. */
287
288
289 /* Line 219 of yacc.c. */
290 #line 291 "../../src/parse-gram.c"
291
292 #ifndef YYSIZE_T
293 # if defined (__SIZE_TYPE__)
294 # define YYSIZE_T __SIZE_TYPE__
295 # elif defined (size_t)
296 # define YYSIZE_T size_t
297 # elif ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
298 # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
299 # define YYSIZE_T size_t
300 # else
301 # define YYSIZE_T unsigned int
302 # endif
303 #endif
304
305 #define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
306
307 #ifndef YY_
308 # if YYENABLE_NLS
309 # if ENABLE_NLS
310 # include <libintl.h> /* INFRINGES ON USER NAME SPACE */
311 # define YY_(msgid) dgettext ("bison-runtime", msgid)
312 # endif
313 # endif
314 # ifndef YY_
315 # define YY_(msgid) msgid
316 # endif
317 #endif
318
319 #if ! defined (yyoverflow) || YYERROR_VERBOSE
320
321 /* The parser invokes alloca or malloc; define the necessary symbols. */
322
323 # ifdef YYSTACK_USE_ALLOCA
324 # if YYSTACK_USE_ALLOCA
325 # ifdef __GNUC__
326 # define YYSTACK_ALLOC __builtin_alloca
327 # elif defined (__BUILTIN_VA_ARG_INCR)
328 # include <alloca.h> /* INFRINGES ON USER NAME SPACE */
329 # elif defined (_AIX)
330 # define YYSTACK_ALLOC __alloca
331 # elif defined (_MSC_VER)
332 # include <malloc.h> /* INFRINGES ON USER NAME SPACE */
333 # define alloca _alloca
334 # else
335 # define YYSTACK_ALLOC alloca
336 # if (! defined (_ALLOCA_H) && ! defined (_STDLIB_H) \
337 && (defined (__STDC__) || defined (__cplusplus)))
338 # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
339 # ifndef _STDLIB_H
340 # define _STDLIB_H 1
341 # endif
342 # endif
343 # endif
344 # endif
345 # endif
346
347 # ifdef YYSTACK_ALLOC
348 /* Pacify GCC's `empty if-body' warning. */
349 # define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
350 # ifndef YYSTACK_ALLOC_MAXIMUM
351 /* The OS might guarantee only one guard page at the bottom of the stack,
352 and a page size can be as small as 4096 bytes. So we cannot safely
353 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
354 to allow for a few compiler-allocated temporary stack slots. */
355 # define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
356 # endif
357 # else
358 # define YYSTACK_ALLOC YYMALLOC
359 # define YYSTACK_FREE YYFREE
360 # ifndef YYSTACK_ALLOC_MAXIMUM
361 # define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
362 # endif
363 # ifdef __cplusplus
364 extern "C" {
365 # endif
366 # ifndef YYMALLOC
367 # define YYMALLOC malloc
368 # if (! defined (malloc) && ! defined (_STDLIB_H) \
369 && (defined (__STDC__) || defined (__cplusplus)))
370 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
371 # endif
372 # endif
373 # ifndef YYFREE
374 # define YYFREE free
375 # if (! defined (free) && ! defined (_STDLIB_H) \
376 && (defined (__STDC__) || defined (__cplusplus)))
377 void free (void *); /* INFRINGES ON USER NAME SPACE */
378 # endif
379 # endif
380 # ifdef __cplusplus
381 }
382 # endif
383 # endif
384 #endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
385
386
387 #if (! defined (yyoverflow) \
388 && (! defined (__cplusplus) \
389 || (defined (YYLTYPE_IS_TRIVIAL) && YYLTYPE_IS_TRIVIAL \
390 && defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
391
392 /* A type that is properly aligned for any stack member. */
393 union yyalloc
394 {
395 short int yyss;
396 YYSTYPE yyvs;
397 YYLTYPE yyls;
398 };
399
400 /* The size of the maximum gap between one aligned stack and the next. */
401 # define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
402
403 /* The size of an array large to enough to hold all stacks, each with
404 N elements. */
405 # define YYSTACK_BYTES(N) \
406 ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
407 + 2 * YYSTACK_GAP_MAXIMUM)
408
409 /* Copy COUNT objects from FROM to TO. The source and destination do
410 not overlap. */
411 # ifndef YYCOPY
412 # if defined (__GNUC__) && 1 < __GNUC__
413 # define YYCOPY(To, From, Count) \
414 __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
415 # else
416 # define YYCOPY(To, From, Count) \
417 do \
418 { \
419 YYSIZE_T yyi; \
420 for (yyi = 0; yyi < (Count); yyi++) \
421 (To)[yyi] = (From)[yyi]; \
422 } \
423 while (0)
424 # endif
425 # endif
426
427 /* Relocate STACK from its old location to the new one. The
428 local variables YYSIZE and YYSTACKSIZE give the old and new number of
429 elements in the stack, and YYPTR gives the new location of the
430 stack. Advance YYPTR to a properly aligned location for the next
431 stack. */
432 # define YYSTACK_RELOCATE(Stack) \
433 do \
434 { \
435 YYSIZE_T yynewbytes; \
436 YYCOPY (&yyptr->Stack, Stack, yysize); \
437 Stack = &yyptr->Stack; \
438 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
439 yyptr += yynewbytes / sizeof (*yyptr); \
440 } \
441 while (0)
442
443 #endif
444
445 #if defined (__STDC__) || defined (__cplusplus)
446 typedef signed char yysigned_char;
447 #else
448 typedef short int yysigned_char;
449 #endif
450
451 /* YYFINAL -- State number of the termination state. */
452 #define YYFINAL 3
453 /* YYLAST -- Last index in YYTABLE. */
454 #define YYLAST 161
455
456 /* YYNTOKENS -- Number of terminals. */
457 #define YYNTOKENS 52
458 /* YYNNTS -- Number of nonterminals. */
459 #define YYNNTS 25
460 /* YYNRULES -- Number of rules. */
461 #define YYNRULES 81
462 /* YYNRULES -- Number of states. */
463 #define YYNSTATES 110
464
465 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
466 #define YYUNDEFTOK 2
467 #define YYMAXUTOK 306
468
469 #define YYTRANSLATE(YYX) \
470 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
471
472 /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
473 static const unsigned char yytranslate[] =
474 {
475 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
476 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
477 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
478 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
479 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
480 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
481 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
482 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
483 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
484 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
485 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
486 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
487 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
488 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
489 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
490 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
491 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
492 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
493 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
494 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
495 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
496 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
497 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
498 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
499 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
500 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
501 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
502 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
503 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
504 35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
505 45, 46, 47, 48, 49, 50, 51
506 };
507
508 #if YYDEBUG
509 /* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
510 YYRHS. */
511 static const unsigned char yyprhs[] =
512 {
513 0, 0, 3, 8, 9, 12, 14, 16, 18, 21,
514 25, 27, 29, 32, 35, 39, 41, 43, 45, 47,
515 51, 53, 55, 59, 61, 63, 66, 69, 71, 73,
516 75, 77, 79, 81, 84, 86, 89, 92, 94, 96,
517 97, 101, 102, 106, 110, 114, 116, 118, 120, 121,
518 123, 125, 128, 130, 132, 135, 138, 142, 144, 147,
519 149, 152, 154, 157, 160, 161, 165, 167, 171, 174,
520 175, 178, 181, 185, 189, 193, 195, 197, 199, 201,
521 203, 204
522 };
523
524 /* YYRHS -- A `-1'-separated list of the rules' RHS. */
525 static const yysigned_char yyrhs[] =
526 {
527 53, 0, -1, 54, 48, 66, 76, -1, -1, 54,
528 55, -1, 56, -1, 49, -1, 17, -1, 19, 75,
529 -1, 19, 75, 75, -1, 20, -1, 21, -1, 22,
530 4, -1, 23, 4, -1, 24, 43, 75, -1, 25,
531 -1, 26, -1, 27, -1, 28, -1, 29, 43, 75,
532 -1, 31, -1, 32, -1, 33, 43, 75, -1, 34,
533 -1, 35, -1, 36, 75, -1, 37, 75, -1, 39,
534 -1, 40, -1, 41, -1, 44, -1, 60, -1, 57,
535 -1, 38, 72, -1, 10, -1, 8, 63, -1, 9,
536 63, -1, 18, -1, 30, -1, -1, 6, 58, 65,
537 -1, -1, 5, 59, 65, -1, 7, 42, 63, -1,
538 61, 62, 63, -1, 11, -1, 12, -1, 13, -1,
539 -1, 42, -1, 72, -1, 63, 72, -1, 42, -1,
540 46, -1, 46, 4, -1, 46, 74, -1, 46, 4,
541 74, -1, 64, -1, 65, 64, -1, 67, -1, 66,
542 67, -1, 68, -1, 56, 44, -1, 1, 44, -1,
543 -1, 47, 69, 70, -1, 71, -1, 70, 45, 71,
544 -1, 70, 44, -1, -1, 71, 72, -1, 71, 73,
545 -1, 71, 14, 72, -1, 71, 15, 4, -1, 71,
546 16, 42, -1, 46, -1, 74, -1, 51, -1, 3,
547 -1, 3, -1, -1, 48, 50, -1
548 };
549
550 /* YYRLINE[YYN] -- source line where rule number YYN was defined. */
551 static const unsigned short int yyrline[] =
552 {
553 0, 192, 192, 200, 202, 206, 207, 208, 209, 210,
554 211, 212, 213, 214, 215, 216, 221, 225, 226, 227,
555 228, 229, 230, 231, 232, 233, 234, 235, 236, 237,
556 238, 242, 243, 244, 248, 254, 261, 268, 272, 279,
557 279, 284, 284, 289, 299, 314, 315, 316, 320, 321,
558 327, 328, 333, 337, 342, 348, 354, 365, 366, 375,
559 376, 382, 383, 388, 395, 395, 399, 400, 401, 406,
560 407, 409, 411, 413, 415, 420, 421, 425, 431, 440,
561 445, 447
562 };
563 #endif
564
565 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
566 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
567 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
568 static const char *const yytname[] =
569 {
570 "\"end of file\"", "error", "$undefined", "\"string\"", "\"integer\"",
571 "\"%token\"", "\"%nterm\"", "\"%type\"", "\"%destructor {...}\"",
572 "\"%printer {...}\"", "\"%union {...}\"", "\"%left\"", "\"%right\"",
573 "\"%nonassoc\"", "\"%prec\"", "\"%dprec\"", "\"%merge\"", "\"%debug\"",
574 "\"%default-prec\"", "\"%define\"", "\"%defines\"", "\"%error-verbose\"",
575 "\"%expect\"", "\"%expect-rr\"", "\"%file-prefix\"", "\"%glr-parser\"",
576 "\"%initial-action {...}\"", "\"%lex-param {...}\"", "\"%locations\"",
577 "\"%name-prefix\"", "\"%no-default-prec\"", "\"%no-lines\"",
578 "\"%nondeterministic-parser\"", "\"%output\"", "\"%parse-param {...}\"",
579 "\"%pure-parser\"", "\"%require\"", "\"%skeleton\"", "\"%start\"",
580 "\"%token-table\"", "\"%verbose\"", "\"%yacc\"", "\"type\"", "\"=\"",
581 "\";\"", "\"|\"", "\"identifier\"", "\"identifier:\"", "\"%%\"",
582 "\"%{...%}\"", "\"epilogue\"", "\"{...}\"", "$accept", "input",
583 "declarations", "declaration", "grammar_declaration",
584 "symbol_declaration", "@1", "@2", "precedence_declaration",
585 "precedence_declarator", "type.opt", "symbols.1", "symbol_def",
586 "symbol_defs.1", "grammar", "rules_or_grammar_declaration", "rules",
587 "@3", "rhses.1", "rhs", "symbol", "action", "string_as_id",
588 "string_content", "epilogue.opt", 0
589 };
590 #endif
591
592 # ifdef YYPRINT
593 /* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
594 token YYLEX-NUM. */
595 static const unsigned short int yytoknum[] =
596 {
597 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
598 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
599 275, 276, 277, 278, 279, 280, 281, 282, 283, 284,
600 285, 286, 287, 288, 289, 290, 291, 292, 293, 294,
601 295, 296, 297, 298, 299, 300, 301, 302, 303, 304,
602 305, 306
603 };
604 # endif
605
606 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
607 static const unsigned char yyr1[] =
608 {
609 0, 52, 53, 54, 54, 55, 55, 55, 55, 55,
610 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
611 55, 55, 55, 55, 55, 55, 55, 55, 55, 55,
612 55, 56, 56, 56, 56, 56, 56, 56, 56, 58,
613 57, 59, 57, 57, 60, 61, 61, 61, 62, 62,
614 63, 63, 64, 64, 64, 64, 64, 65, 65, 66,
615 66, 67, 67, 67, 69, 68, 70, 70, 70, 71,
616 71, 71, 71, 71, 71, 72, 72, 73, 74, 75,
617 76, 76
618 };
619
620 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
621 static const unsigned char yyr2[] =
622 {
623 0, 2, 4, 0, 2, 1, 1, 1, 2, 3,
624 1, 1, 2, 2, 3, 1, 1, 1, 1, 3,
625 1, 1, 3, 1, 1, 2, 2, 1, 1, 1,
626 1, 1, 1, 2, 1, 2, 2, 1, 1, 0,
627 3, 0, 3, 3, 3, 1, 1, 1, 0, 1,
628 1, 2, 1, 1, 2, 2, 3, 1, 2, 1,
629 2, 1, 2, 2, 0, 3, 1, 3, 2, 0,
630 2, 2, 3, 3, 3, 1, 1, 1, 1, 1,
631 0, 2
632 };
633
634 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
635 STATE-NUM when YYTABLE doesn't specify something else to do. Zero
636 means the default is an error. */
637 static const unsigned char yydefact[] =
638 {
639 3, 0, 0, 1, 41, 39, 0, 0, 0, 34,
640 45, 46, 47, 7, 37, 0, 10, 11, 0, 0,
641 0, 15, 16, 17, 18, 0, 38, 20, 21, 0,
642 23, 24, 0, 0, 0, 27, 28, 29, 30, 0,
643 6, 4, 5, 32, 31, 48, 0, 0, 0, 78,
644 75, 35, 50, 76, 36, 79, 8, 12, 13, 0,
645 0, 0, 25, 26, 33, 0, 64, 0, 0, 59,
646 61, 49, 0, 52, 53, 57, 42, 40, 43, 51,
647 9, 14, 19, 22, 63, 69, 62, 0, 60, 2,
648 44, 54, 55, 58, 65, 66, 81, 56, 68, 69,
649 0, 0, 0, 77, 70, 71, 67, 72, 73, 74
650 };
651
652 /* YYDEFGOTO[NTERM-NUM]. */
653 static const yysigned_char yydefgoto[] =
654 {
655 -1, 1, 2, 41, 67, 43, 47, 46, 44, 45,
656 72, 51, 75, 76, 68, 69, 70, 85, 94, 95,
657 52, 105, 53, 56, 89
658 };
659
660 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
661 STATE-NUM. */
662 #define YYPACT_NINF -69
663 static const yysigned_char yypact[] =
664 {
665 -69, 5, 112, -69, -69, -69, -35, 0, 0, -69,
666 -69, -69, -69, -69, -69, 13, -69, -69, 20, 31,
667 -18, -69, -69, -69, -69, -6, -69, -69, -69, -5,
668 -69, -69, 13, 13, 0, -69, -69, -69, -69, 69,
669 -69, -69, -69, -69, -69, -2, -38, -38, 0, -69,
670 -69, 0, -69, -69, 0, -69, 13, -69, -69, 13,
671 13, 13, -69, -69, -69, -8, -69, 3, 21, -69,
672 -69, -69, 0, -69, 6, -69, -38, -38, 0, -69,
673 -69, -69, -69, -69, -69, -69, -69, 2, -69, -69,
674 0, 39, -69, -69, -33, -1, -69, -69, -69, -69,
675 0, 44, 1, -69, -69, -69, -1, -69, -69, -69
676 };
677
678 /* YYPGOTO[NTERM-NUM]. */
679 static const yysigned_char yypgoto[] =
680 {
681 -69, -69, -69, -69, 47, -69, -69, -69, -69, -69,
682 -69, -7, -58, 7, -69, -15, -69, -69, -69, -44,
683 -34, -69, -68, 30, -69
684 };
685
686 /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
687 positive, shift that token. If negative, reduce the rule which
688 number is the opposite. If zero, do what YYDEFACT says.
689 If YYTABLE_NINF, syntax error. */
690 #define YYTABLE_NINF -81
691 static const yysigned_char yytable[] =
692 {
693 64, 54, 49, 49, 73, 3, 92, 48, 74, 49,
694 91, 98, 99, 100, 101, 102, 55, 79, 93, 93,
695 79, -80, 65, 97, 57, 59, 4, 5, 6, 7,
696 8, 9, 10, 11, 12, 58, 84, 60, 61, 14,
697 71, 78, 49, 109, 79, 50, 50, 86, 108, 42,
698 103, 26, 96, 88, 77, 106, 79, 0, 0, 34,
699 0, 104, 62, 63, 0, 90, 107, 0, 66, 87,
700 65, 0, 104, 0, 4, 5, 6, 7, 8, 9,
701 10, 11, 12, 0, 0, 0, 80, 14, 0, 81,
702 82, 83, 0, 0, 0, 0, 0, 0, 0, 26,
703 0, 0, 0, 0, 0, 0, 0, 34, 0, 0,
704 0, 0, 0, 0, 0, 0, 66, 4, 5, 6,
705 7, 8, 9, 10, 11, 12, 0, 0, 0, 13,
706 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
707 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
708 34, 35, 36, 37, 0, 0, 38, 0, 0, 0,
709 39, 40
710 };
711
712 static const yysigned_char yycheck[] =
713 {
714 34, 8, 3, 3, 42, 0, 74, 42, 46, 3,
715 4, 44, 45, 14, 15, 16, 3, 51, 76, 77,
716 54, 0, 1, 91, 4, 43, 5, 6, 7, 8,
717 9, 10, 11, 12, 13, 4, 44, 43, 43, 18,
718 42, 48, 3, 42, 78, 46, 46, 44, 4, 2,
719 51, 30, 50, 68, 47, 99, 90, -1, -1, 38,
720 -1, 95, 32, 33, -1, 72, 100, -1, 47, 48,
721 1, -1, 106, -1, 5, 6, 7, 8, 9, 10,
722 11, 12, 13, -1, -1, -1, 56, 18, -1, 59,
723 60, 61, -1, -1, -1, -1, -1, -1, -1, 30,
724 -1, -1, -1, -1, -1, -1, -1, 38, -1, -1,
725 -1, -1, -1, -1, -1, -1, 47, 5, 6, 7,
726 8, 9, 10, 11, 12, 13, -1, -1, -1, 17,
727 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
728 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
729 38, 39, 40, 41, -1, -1, 44, -1, -1, -1,
730 48, 49
731 };
732
733 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
734 symbol of state STATE-NUM. */
735 static const unsigned char yystos[] =
736 {
737 0, 53, 54, 0, 5, 6, 7, 8, 9, 10,
738 11, 12, 13, 17, 18, 19, 20, 21, 22, 23,
739 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
740 34, 35, 36, 37, 38, 39, 40, 41, 44, 48,
741 49, 55, 56, 57, 60, 61, 59, 58, 42, 3,
742 46, 63, 72, 74, 63, 3, 75, 4, 4, 43,
743 43, 43, 75, 75, 72, 1, 47, 56, 66, 67,
744 68, 42, 62, 42, 46, 64, 65, 65, 63, 72,
745 75, 75, 75, 75, 44, 69, 44, 48, 67, 76,
746 63, 4, 74, 64, 70, 71, 50, 74, 44, 45,
747 14, 15, 16, 51, 72, 73, 71, 72, 4, 42
748 };
749
750 #define yyerrok (yyerrstatus = 0)
751 #define yyclearin (yychar = YYEMPTY)
752 #define YYEMPTY (-2)
753 #define YYEOF 0
754
755 #define YYACCEPT goto yyacceptlab
756 #define YYABORT goto yyabortlab
757 #define YYERROR goto yyerrorlab
758
759
760 /* Like YYERROR except do call yyerror. This remains here temporarily
761 to ease the transition to the new meaning of YYERROR, for GCC.
762 Once GCC version 2 has supplanted version 1, this can go. */
763
764 #define YYFAIL goto yyerrlab
765
766 #define YYRECOVERING() (!!yyerrstatus)
767
768 #define YYBACKUP(Token, Value) \
769 do \
770 if (yychar == YYEMPTY && yylen == 1) \
771 { \
772 yychar = (Token); \
773 yylval = (Value); \
774 yytoken = YYTRANSLATE (yychar); \
775 YYPOPSTACK; \
776 goto yybackup; \
777 } \
778 else \
779 { \
780 yyerror (YY_("syntax error: cannot back up")); \
781 YYERROR; \
782 } \
783 while (0)
784
785
786 #define YYTERROR 1
787 #define YYERRCODE 256
788
789
790 /* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
791 If N is 0, then set CURRENT to the empty location which ends
792 the previous symbol: RHS[0] (always defined). */
793
794 #define YYRHSLOC(Rhs, K) ((Rhs)[K])
795 #ifndef YYLLOC_DEFAULT
796 # define YYLLOC_DEFAULT(Current, Rhs, N) \
797 do \
798 if (N) \
799 { \
800 (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
801 (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
802 (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
803 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
804 } \
805 else \
806 { \
807 (Current).first_line = (Current).last_line = \
808 YYRHSLOC (Rhs, 0).last_line; \
809 (Current).first_column = (Current).last_column = \
810 YYRHSLOC (Rhs, 0).last_column; \
811 } \
812 while (0)
813 #endif
814
815
816 /* YY_LOCATION_PRINT -- Print the location on the stream.
817 This macro was not mandated originally: define only if we know
818 we won't break user code: when these are the locations we know. */
819
820 #ifndef YY_LOCATION_PRINT
821 # if YYLTYPE_IS_TRIVIAL
822 # define YY_LOCATION_PRINT(File, Loc) \
823 fprintf (File, "%d.%d-%d.%d", \
824 (Loc).first_line, (Loc).first_column, \
825 (Loc).last_line, (Loc).last_column)
826 # else
827 # define YY_LOCATION_PRINT(File, Loc) ((void) 0)
828 # endif
829 #endif
830
831
832 /* YYLEX -- calling `yylex' with the right arguments. */
833
834 #ifdef YYLEX_PARAM
835 # define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
836 #else
837 # define YYLEX yylex (&yylval, &yylloc)
838 #endif
839
840 /* Enable debugging if requested. */
841 #if YYDEBUG
842
843 # ifndef YYFPRINTF
844 # include <stdio.h> /* INFRINGES ON USER NAME SPACE */
845 # define YYFPRINTF fprintf
846 # endif
847
848 # define YYDPRINTF(Args) \
849 do { \
850 if (yydebug) \
851 YYFPRINTF Args; \
852 } while (0)
853
854 # define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
855 do { \
856 if (yydebug) \
857 { \
858 YYFPRINTF (stderr, "%s ", Title); \
859 yysymprint (stderr, \
860 Type, Value, Location); \
861 YYFPRINTF (stderr, "\n"); \
862 } \
863 } while (0)
864
865 /*------------------------------------------------------------------.
866 | yy_stack_print -- Print the state stack from its BOTTOM up to its |
867 | TOP (included). |
868 `------------------------------------------------------------------*/
869
870 #if defined (__STDC__) || defined (__cplusplus)
871 static void
872 yy_stack_print (short int *bottom, short int *top)
873 #else
874 static void
875 yy_stack_print (bottom, top)
876 short int *bottom;
877 short int *top;
878 #endif
879 {
880 YYFPRINTF (stderr, "Stack now");
881 for (/* Nothing. */; bottom <= top; ++bottom)
882 YYFPRINTF (stderr, " %d", *bottom);
883 YYFPRINTF (stderr, "\n");
884 }
885
886 # define YY_STACK_PRINT(Bottom, Top) \
887 do { \
888 if (yydebug) \
889 yy_stack_print ((Bottom), (Top)); \
890 } while (0)
891
892
893 /*------------------------------------------------.
894 | Report that the YYRULE is going to be reduced. |
895 `------------------------------------------------*/
896
897 #if defined (__STDC__) || defined (__cplusplus)
898 static void
899 yy_reduce_print (int yyrule)
900 #else
901 static void
902 yy_reduce_print (yyrule)
903 int yyrule;
904 #endif
905 {
906 int yyi;
907 unsigned long int yylno = yyrline[yyrule];
908 YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ",
909 yyrule - 1, yylno);
910 /* Print the symbols being reduced, and their result. */
911 for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
912 YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
913 YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]);
914 }
915
916 # define YY_REDUCE_PRINT(Rule) \
917 do { \
918 if (yydebug) \
919 yy_reduce_print (Rule); \
920 } while (0)
921
922 /* Nonzero means print parse trace. It is left uninitialized so that
923 multiple parsers can coexist. */
924 int yydebug;
925 #else /* !YYDEBUG */
926 # define YYDPRINTF(Args)
927 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
928 # define YY_STACK_PRINT(Bottom, Top)
929 # define YY_REDUCE_PRINT(Rule)
930 #endif /* !YYDEBUG */
931
932
933 /* YYINITDEPTH -- initial size of the parser's stacks. */
934 #ifndef YYINITDEPTH
935 # define YYINITDEPTH 200
936 #endif
937
938 /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
939 if the built-in stack extension method is used).
940
941 Do not make this value too large; the results are undefined if
942 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
943 evaluated with infinite-precision integer arithmetic. */
944
945 #ifndef YYMAXDEPTH
946 # define YYMAXDEPTH 10000
947 #endif
948
949 \f
950
951 #if YYERROR_VERBOSE
952
953 # ifndef yystrlen
954 # if defined (__GLIBC__) && defined (_STRING_H)
955 # define yystrlen strlen
956 # else
957 /* Return the length of YYSTR. */
958 static YYSIZE_T
959 # if defined (__STDC__) || defined (__cplusplus)
960 yystrlen (const char *yystr)
961 # else
962 yystrlen (yystr)
963 const char *yystr;
964 # endif
965 {
966 const char *yys = yystr;
967
968 while (*yys++ != '\0')
969 continue;
970
971 return yys - yystr - 1;
972 }
973 # endif
974 # endif
975
976 # ifndef yystpcpy
977 # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
978 # define yystpcpy stpcpy
979 # else
980 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
981 YYDEST. */
982 static char *
983 # if defined (__STDC__) || defined (__cplusplus)
984 yystpcpy (char *yydest, const char *yysrc)
985 # else
986 yystpcpy (yydest, yysrc)
987 char *yydest;
988 const char *yysrc;
989 # endif
990 {
991 char *yyd = yydest;
992 const char *yys = yysrc;
993
994 while ((*yyd++ = *yys++) != '\0')
995 continue;
996
997 return yyd - 1;
998 }
999 # endif
1000 # endif
1001
1002 # ifndef yytnamerr
1003 /* Copy to YYRES the contents of YYSTR after stripping away unnecessary
1004 quotes and backslashes, so that it's suitable for yyerror. The
1005 heuristic is that double-quoting is unnecessary unless the string
1006 contains an apostrophe, a comma, or backslash (other than
1007 backslash-backslash). YYSTR is taken from yytname. If YYRES is
1008 null, do not copy; instead, return the length of what the result
1009 would have been. */
1010 static YYSIZE_T
1011 yytnamerr (char *yyres, const char *yystr)
1012 {
1013 if (*yystr == '"')
1014 {
1015 size_t yyn = 0;
1016 char const *yyp = yystr;
1017
1018 for (;;)
1019 switch (*++yyp)
1020 {
1021 case '\'':
1022 case ',':
1023 goto do_not_strip_quotes;
1024
1025 case '\\':
1026 if (*++yyp != '\\')
1027 goto do_not_strip_quotes;
1028 /* Fall through. */
1029 default:
1030 if (yyres)
1031 yyres[yyn] = *yyp;
1032 yyn++;
1033 break;
1034
1035 case '"':
1036 if (yyres)
1037 yyres[yyn] = '\0';
1038 return yyn;
1039 }
1040 do_not_strip_quotes: ;
1041 }
1042
1043 if (! yyres)
1044 return yystrlen (yystr);
1045
1046 return yystpcpy (yyres, yystr) - yyres;
1047 }
1048 # endif
1049
1050 /* Copy into YYRESULT an error message about the unexpected token
1051 YYCHAR while in state YYSTATE. Return the number of bytes copied,
1052 including the terminating null byte. If YYRESULT is null, do not
1053 copy anything; just return the number of bytes that would be
1054 copied. As a special case, return 0 if an ordinary "syntax error"
1055 message will do. Return YYSIZE_MAXIMUM if overflow occurs during
1056 size calculation. */
1057 static YYSIZE_T
1058 yysyntax_error (char *yyresult, int yystate, int yychar)
1059 {
1060 int yyn = yypact[yystate];
1061
1062 if (! (YYPACT_NINF < yyn && yyn < YYLAST))
1063 return 0;
1064 else
1065 {
1066 int yytype = YYTRANSLATE (yychar);
1067 YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
1068 YYSIZE_T yysize = yysize0;
1069 YYSIZE_T yysize1;
1070 int yysize_overflow = 0;
1071 enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
1072 char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
1073 int yyx;
1074
1075 # if 0
1076 /* This is so xgettext sees the translatable formats that are
1077 constructed on the fly. */
1078 YY_("syntax error, unexpected %s");
1079 YY_("syntax error, unexpected %s, expecting %s");
1080 YY_("syntax error, unexpected %s, expecting %s or %s");
1081 YY_("syntax error, unexpected %s, expecting %s or %s or %s");
1082 YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
1083 # endif
1084 char *yyfmt;
1085 char const *yyf;
1086 static char const yyunexpected[] = "syntax error, unexpected %s";
1087 static char const yyexpecting[] = ", expecting %s";
1088 static char const yyor[] = " or %s";
1089 char yyformat[sizeof yyunexpected
1090 + sizeof yyexpecting - 1
1091 + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
1092 * (sizeof yyor - 1))];
1093 char const *yyprefix = yyexpecting;
1094
1095 /* Start YYX at -YYN if negative to avoid negative indexes in
1096 YYCHECK. */
1097 int yyxbegin = yyn < 0 ? -yyn : 0;
1098
1099 /* Stay within bounds of both yycheck and yytname. */
1100 int yychecklim = YYLAST - yyn;
1101 int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
1102 int yycount = 1;
1103
1104 yyarg[0] = yytname[yytype];
1105 yyfmt = yystpcpy (yyformat, yyunexpected);
1106
1107 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
1108 if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
1109 {
1110 if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
1111 {
1112 yycount = 1;
1113 yysize = yysize0;
1114 yyformat[sizeof yyunexpected - 1] = '\0';
1115 break;
1116 }
1117 yyarg[yycount++] = yytname[yyx];
1118 yysize1 = yysize + yytnamerr (0, yytname[yyx]);
1119 yysize_overflow |= yysize1 < yysize;
1120 yysize = yysize1;
1121 yyfmt = yystpcpy (yyfmt, yyprefix);
1122 yyprefix = yyor;
1123 }
1124
1125 yyf = YY_(yyformat);
1126 yysize1 = yysize + yystrlen (yyf);
1127 yysize_overflow |= yysize1 < yysize;
1128 yysize = yysize1;
1129
1130 if (yysize_overflow)
1131 return YYSIZE_MAXIMUM;
1132
1133 if (yyresult)
1134 {
1135 /* Avoid sprintf, as that infringes on the user's name space.
1136 Don't have undefined behavior even if the translation
1137 produced a string with the wrong number of "%s"s. */
1138 char *yyp = yyresult;
1139 int yyi = 0;
1140 while ((*yyp = *yyf))
1141 {
1142 if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
1143 {
1144 yyp += yytnamerr (yyp, yyarg[yyi++]);
1145 yyf += 2;
1146 }
1147 else
1148 {
1149 yyp++;
1150 yyf++;
1151 }
1152 }
1153 }
1154 return yysize;
1155 }
1156 }
1157 #endif /* YYERROR_VERBOSE */
1158 \f
1159
1160 #if YYDEBUG
1161 /*--------------------------------.
1162 | Print this symbol on YYOUTPUT. |
1163 `--------------------------------*/
1164
1165 #if defined (__STDC__) || defined (__cplusplus)
1166 static void
1167 yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp)
1168 #else
1169 static void
1170 yysymprint (yyoutput, yytype, yyvaluep, yylocationp)
1171 FILE *yyoutput;
1172 int yytype;
1173 YYSTYPE *yyvaluep;
1174 YYLTYPE *yylocationp;
1175 #endif
1176 {
1177 /* Pacify ``unused variable'' warnings. */
1178 (void) yyvaluep;
1179 (void) yylocationp;
1180
1181 if (yytype < YYNTOKENS)
1182 YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
1183 else
1184 YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
1185
1186 YY_LOCATION_PRINT (yyoutput, *yylocationp);
1187 YYFPRINTF (yyoutput, ": ");
1188
1189 # ifdef YYPRINT
1190 if (yytype < YYNTOKENS)
1191 YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
1192 # endif
1193 switch (yytype)
1194 {
1195 case 3: /* "\"string\"" */
1196 #line 169 "../../src/parse-gram.y"
1197 { fprintf (stderr, "\"%s\"", (yyvaluep->chars)); };
1198 #line 1199 "../../src/parse-gram.c"
1199 break;
1200 case 4: /* "\"integer\"" */
1201 #line 182 "../../src/parse-gram.y"
1202 { fprintf (stderr, "%d", (yyvaluep->integer)); };
1203 #line 1204 "../../src/parse-gram.c"
1204 break;
1205 case 8: /* "\"%destructor {...}\"" */
1206 #line 171 "../../src/parse-gram.y"
1207 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1208 #line 1209 "../../src/parse-gram.c"
1209 break;
1210 case 9: /* "\"%printer {...}\"" */
1211 #line 175 "../../src/parse-gram.y"
1212 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1213 #line 1214 "../../src/parse-gram.c"
1214 break;
1215 case 10: /* "\"%union {...}\"" */
1216 #line 176 "../../src/parse-gram.y"
1217 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1218 #line 1219 "../../src/parse-gram.c"
1219 break;
1220 case 26: /* "\"%initial-action {...}\"" */
1221 #line 172 "../../src/parse-gram.y"
1222 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1223 #line 1224 "../../src/parse-gram.c"
1224 break;
1225 case 27: /* "\"%lex-param {...}\"" */
1226 #line 173 "../../src/parse-gram.y"
1227 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1228 #line 1229 "../../src/parse-gram.c"
1229 break;
1230 case 34: /* "\"%parse-param {...}\"" */
1231 #line 174 "../../src/parse-gram.y"
1232 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1233 #line 1234 "../../src/parse-gram.c"
1234 break;
1235 case 42: /* "\"type\"" */
1236 #line 180 "../../src/parse-gram.y"
1237 { fprintf (stderr, "<%s>", (yyvaluep->uniqstr)); };
1238 #line 1239 "../../src/parse-gram.c"
1239 break;
1240 case 46: /* "\"identifier\"" */
1241 #line 184 "../../src/parse-gram.y"
1242 { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
1243 #line 1244 "../../src/parse-gram.c"
1244 break;
1245 case 47: /* "\"identifier:\"" */
1246 #line 186 "../../src/parse-gram.y"
1247 { fprintf (stderr, "%s:", (yyvaluep->symbol)->tag); };
1248 #line 1249 "../../src/parse-gram.c"
1249 break;
1250 case 49: /* "\"%{...%}\"" */
1251 #line 178 "../../src/parse-gram.y"
1252 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1253 #line 1254 "../../src/parse-gram.c"
1254 break;
1255 case 50: /* "\"epilogue\"" */
1256 #line 178 "../../src/parse-gram.y"
1257 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1258 #line 1259 "../../src/parse-gram.c"
1259 break;
1260 case 51: /* "\"{...}\"" */
1261 #line 177 "../../src/parse-gram.y"
1262 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1263 #line 1264 "../../src/parse-gram.c"
1264 break;
1265 case 72: /* "symbol" */
1266 #line 184 "../../src/parse-gram.y"
1267 { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
1268 #line 1269 "../../src/parse-gram.c"
1269 break;
1270 case 73: /* "action" */
1271 #line 177 "../../src/parse-gram.y"
1272 { fprintf (stderr, "{\n%s\n}", (yyvaluep->chars)); };
1273 #line 1274 "../../src/parse-gram.c"
1274 break;
1275 case 74: /* "string_as_id" */
1276 #line 184 "../../src/parse-gram.y"
1277 { fprintf (stderr, "%s", (yyvaluep->symbol)->tag); };
1278 #line 1279 "../../src/parse-gram.c"
1279 break;
1280 case 75: /* "string_content" */
1281 #line 169 "../../src/parse-gram.y"
1282 { fprintf (stderr, "\"%s\"", (yyvaluep->chars)); };
1283 #line 1284 "../../src/parse-gram.c"
1284 break;
1285 default:
1286 break;
1287 }
1288 YYFPRINTF (yyoutput, ")");
1289 }
1290
1291 #endif /* ! YYDEBUG */
1292 /*-----------------------------------------------.
1293 | Release the memory associated to this symbol. |
1294 `-----------------------------------------------*/
1295
1296 #if defined (__STDC__) || defined (__cplusplus)
1297 static void
1298 yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp)
1299 #else
1300 static void
1301 yydestruct (yymsg, yytype, yyvaluep, yylocationp)
1302 const char *yymsg;
1303 int yytype;
1304 YYSTYPE *yyvaluep;
1305 YYLTYPE *yylocationp;
1306 #endif
1307 {
1308 /* Pacify ``unused variable'' warnings. */
1309 (void) yyvaluep;
1310 (void) yylocationp;
1311
1312 if (!yymsg)
1313 yymsg = "Deleting";
1314 YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
1315
1316 switch (yytype)
1317 {
1318
1319 default:
1320 break;
1321 }
1322 }
1323 \f
1324
1325 /* Prevent warnings from -Wmissing-prototypes. */
1326
1327 #ifdef YYPARSE_PARAM
1328 # if defined (__STDC__) || defined (__cplusplus)
1329 int yyparse (void *YYPARSE_PARAM);
1330 # else
1331 int yyparse ();
1332 # endif
1333 #else /* ! YYPARSE_PARAM */
1334 #if defined (__STDC__) || defined (__cplusplus)
1335 int yyparse (void);
1336 #else
1337 int yyparse ();
1338 #endif
1339 #endif /* ! YYPARSE_PARAM */
1340
1341
1342
1343
1344
1345
1346 /*----------.
1347 | yyparse. |
1348 `----------*/
1349
1350 #ifdef YYPARSE_PARAM
1351 # if defined (__STDC__) || defined (__cplusplus)
1352 int yyparse (void *YYPARSE_PARAM)
1353 # else
1354 int yyparse (YYPARSE_PARAM)
1355 void *YYPARSE_PARAM;
1356 # endif
1357 #else /* ! YYPARSE_PARAM */
1358 #if defined (__STDC__) || defined (__cplusplus)
1359 int
1360 yyparse (void)
1361 #else
1362 int
1363 yyparse ()
1364 ;
1365 #endif
1366 #endif
1367 {
1368 /* The look-ahead symbol. */
1369 int yychar;
1370
1371 /* The semantic value of the look-ahead symbol. */
1372 YYSTYPE yylval;
1373
1374 /* Number of syntax errors so far. */
1375 int yynerrs;
1376 /* Location data for the look-ahead symbol. */
1377 YYLTYPE yylloc;
1378
1379 int yystate;
1380 int yyn;
1381 int yyresult;
1382 /* Number of tokens to shift before error messages enabled. */
1383 int yyerrstatus;
1384 /* Look-ahead token as an internal (translated) token number. */
1385 int yytoken = 0;
1386 #if YYERROR_VERBOSE
1387 /* Buffer for error messages, and its allocated size. */
1388 char yymsgbuf[128];
1389 char *yymsg = yymsgbuf;
1390 YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
1391 #endif
1392
1393 /* Three stacks and their tools:
1394 `yyss': related to states,
1395 `yyvs': related to semantic values,
1396 `yyls': related to locations.
1397
1398 Refer to the stacks thru separate pointers, to allow yyoverflow
1399 to reallocate them elsewhere. */
1400
1401 /* The state stack. */
1402 short int yyssa[YYINITDEPTH];
1403 short int *yyss = yyssa;
1404 short int *yyssp;
1405
1406 /* The semantic value stack. */
1407 YYSTYPE yyvsa[YYINITDEPTH];
1408 YYSTYPE *yyvs = yyvsa;
1409 YYSTYPE *yyvsp;
1410
1411 /* The location stack. */
1412 YYLTYPE yylsa[YYINITDEPTH];
1413 YYLTYPE *yyls = yylsa;
1414 YYLTYPE *yylsp;
1415 /* The locations where the error started and ended. */
1416 YYLTYPE yyerror_range[2];
1417
1418 #define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
1419
1420 YYSIZE_T yystacksize = YYINITDEPTH;
1421
1422 /* The variables used to return semantic value and location from the
1423 action routines. */
1424 YYSTYPE yyval;
1425 YYLTYPE yyloc;
1426
1427 /* When reducing, the number of symbols on the RHS of the reduced
1428 rule. */
1429 int yylen;
1430
1431 YYDPRINTF ((stderr, "Starting parse\n"));
1432
1433 yystate = 0;
1434 yyerrstatus = 0;
1435 yynerrs = 0;
1436 yychar = YYEMPTY; /* Cause a token to be read. */
1437
1438 /* Initialize stack pointers.
1439 Waste one element of value and location stack
1440 so that they stay on the same level as the state stack.
1441 The wasted elements are never initialized. */
1442
1443 yyssp = yyss;
1444 yyvsp = yyvs;
1445 yylsp = yyls;
1446 #if YYLTYPE_IS_TRIVIAL
1447 /* Initialize the default location before parsing starts. */
1448 yylloc.first_line = yylloc.last_line = 1;
1449 yylloc.first_column = yylloc.last_column = 0;
1450 #endif
1451
1452
1453 /* User initialization code. */
1454 #line 72 "../../src/parse-gram.y"
1455 {
1456 /* Bison's grammar can initial empty locations, hence a default
1457 location is needed. */
1458 yylloc.start.file = yylloc.end.file = current_file;
1459 yylloc.start.line = yylloc.end.line = 1;
1460 yylloc.start.column = yylloc.end.column = 0;
1461 }
1462 /* Line 1053 of yacc.c. */
1463 #line 1464 "../../src/parse-gram.c"
1464 yylsp[0] = yylloc;
1465 goto yysetstate;
1466
1467 /*------------------------------------------------------------.
1468 | yynewstate -- Push a new state, which is found in yystate. |
1469 `------------------------------------------------------------*/
1470 yynewstate:
1471 /* In all cases, when you get here, the value and location stacks
1472 have just been pushed. so pushing a state here evens the stacks.
1473 */
1474 yyssp++;
1475
1476 yysetstate:
1477 *yyssp = yystate;
1478
1479 if (yyss + yystacksize - 1 <= yyssp)
1480 {
1481 /* Get the current used size of the three stacks, in elements. */
1482 YYSIZE_T yysize = yyssp - yyss + 1;
1483
1484 #ifdef yyoverflow
1485 {
1486 /* Give user a chance to reallocate the stack. Use copies of
1487 these so that the &'s don't force the real ones into
1488 memory. */
1489 YYSTYPE *yyvs1 = yyvs;
1490 short int *yyss1 = yyss;
1491 YYLTYPE *yyls1 = yyls;
1492
1493 /* Each stack pointer address is followed by the size of the
1494 data in use in that stack, in bytes. This used to be a
1495 conditional around just the two extra args, but that might
1496 be undefined if yyoverflow is a macro. */
1497 yyoverflow (YY_("memory exhausted"),
1498 &yyss1, yysize * sizeof (*yyssp),
1499 &yyvs1, yysize * sizeof (*yyvsp),
1500 &yyls1, yysize * sizeof (*yylsp),
1501 &yystacksize);
1502 yyls = yyls1;
1503 yyss = yyss1;
1504 yyvs = yyvs1;
1505 }
1506 #else /* no yyoverflow */
1507 # ifndef YYSTACK_RELOCATE
1508 goto yyexhaustedlab;
1509 # else
1510 /* Extend the stack our own way. */
1511 if (YYMAXDEPTH <= yystacksize)
1512 goto yyexhaustedlab;
1513 yystacksize *= 2;
1514 if (YYMAXDEPTH < yystacksize)
1515 yystacksize = YYMAXDEPTH;
1516
1517 {
1518 short int *yyss1 = yyss;
1519 union yyalloc *yyptr =
1520 (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
1521 if (! yyptr)
1522 goto yyexhaustedlab;
1523 YYSTACK_RELOCATE (yyss);
1524 YYSTACK_RELOCATE (yyvs);
1525 YYSTACK_RELOCATE (yyls);
1526 # undef YYSTACK_RELOCATE
1527 if (yyss1 != yyssa)
1528 YYSTACK_FREE (yyss1);
1529 }
1530 # endif
1531 #endif /* no yyoverflow */
1532
1533 yyssp = yyss + yysize - 1;
1534 yyvsp = yyvs + yysize - 1;
1535 yylsp = yyls + yysize - 1;
1536
1537 YYDPRINTF ((stderr, "Stack size increased to %lu\n",
1538 (unsigned long int) yystacksize));
1539
1540 if (yyss + yystacksize - 1 <= yyssp)
1541 YYABORT;
1542 }
1543
1544 YYDPRINTF ((stderr, "Entering state %d\n", yystate));
1545
1546 goto yybackup;
1547
1548 /*-----------.
1549 | yybackup. |
1550 `-----------*/
1551 yybackup:
1552
1553 /* Do appropriate processing given the current state. */
1554 /* Read a look-ahead token if we need one and don't already have one. */
1555 /* yyresume: */
1556
1557 /* First try to decide what to do without reference to look-ahead token. */
1558
1559 yyn = yypact[yystate];
1560 if (yyn == YYPACT_NINF)
1561 goto yydefault;
1562
1563 /* Not known => get a look-ahead token if don't already have one. */
1564
1565 /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
1566 if (yychar == YYEMPTY)
1567 {
1568 YYDPRINTF ((stderr, "Reading a token: "));
1569 yychar = YYLEX;
1570 }
1571
1572 if (yychar <= YYEOF)
1573 {
1574 yychar = yytoken = YYEOF;
1575 YYDPRINTF ((stderr, "Now at end of input.\n"));
1576 }
1577 else
1578 {
1579 yytoken = YYTRANSLATE (yychar);
1580 YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
1581 }
1582
1583 /* If the proper action on seeing token YYTOKEN is to reduce or to
1584 detect an error, take that action. */
1585 yyn += yytoken;
1586 if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
1587 goto yydefault;
1588 yyn = yytable[yyn];
1589 if (yyn <= 0)
1590 {
1591 if (yyn == 0 || yyn == YYTABLE_NINF)
1592 goto yyerrlab;
1593 yyn = -yyn;
1594 goto yyreduce;
1595 }
1596
1597 if (yyn == YYFINAL)
1598 YYACCEPT;
1599
1600 /* Shift the look-ahead token. */
1601 YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
1602
1603 /* Discard the token being shifted unless it is eof. */
1604 if (yychar != YYEOF)
1605 yychar = YYEMPTY;
1606
1607 *++yyvsp = yylval;
1608 *++yylsp = yylloc;
1609
1610 /* Count tokens shifted since error; after three, turn off error
1611 status. */
1612 if (yyerrstatus)
1613 yyerrstatus--;
1614
1615 yystate = yyn;
1616 goto yynewstate;
1617
1618
1619 /*-----------------------------------------------------------.
1620 | yydefault -- do the default action for the current state. |
1621 `-----------------------------------------------------------*/
1622 yydefault:
1623 yyn = yydefact[yystate];
1624 if (yyn == 0)
1625 goto yyerrlab;
1626 goto yyreduce;
1627
1628
1629 /*-----------------------------.
1630 | yyreduce -- Do a reduction. |
1631 `-----------------------------*/
1632 yyreduce:
1633 /* yyn is the number of a rule to reduce with. */
1634 yylen = yyr2[yyn];
1635
1636 /* If YYLEN is nonzero, implement the default value of the action:
1637 `$$ = $1'.
1638
1639 Otherwise, the following line sets YYVAL to garbage.
1640 This behavior is undocumented and Bison
1641 users should not rely upon it. Assigning to YYVAL
1642 unconditionally makes the parser a bit smaller, and it avoids a
1643 GCC warning that YYVAL may be used uninitialized. */
1644 yyval = yyvsp[1-yylen];
1645
1646 /* Default location. */
1647 YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);
1648 YY_REDUCE_PRINT (yyn);
1649 switch (yyn)
1650 {
1651 case 6:
1652 #line 207 "../../src/parse-gram.y"
1653 { prologue_augment ((yyvsp[0].chars), (yylsp[0])); }
1654 break;
1655
1656 case 7:
1657 #line 208 "../../src/parse-gram.y"
1658 { debug_flag = true; }
1659 break;
1660
1661 case 8:
1662 #line 209 "../../src/parse-gram.y"
1663 { muscle_insert ((yyvsp[0].chars), "1"); }
1664 break;
1665
1666 case 9:
1667 #line 210 "../../src/parse-gram.y"
1668 { muscle_insert ((yyvsp[-1].chars), (yyvsp[0].chars)); }
1669 break;
1670
1671 case 10:
1672 #line 211 "../../src/parse-gram.y"
1673 { defines_flag = true; }
1674 break;
1675
1676 case 11:
1677 #line 212 "../../src/parse-gram.y"
1678 { error_verbose = true; }
1679 break;
1680
1681 case 12:
1682 #line 213 "../../src/parse-gram.y"
1683 { expected_sr_conflicts = (yyvsp[0].integer); }
1684 break;
1685
1686 case 13:
1687 #line 214 "../../src/parse-gram.y"
1688 { expected_rr_conflicts = (yyvsp[0].integer); }
1689 break;
1690
1691 case 14:
1692 #line 215 "../../src/parse-gram.y"
1693 { spec_file_prefix = (yyvsp[0].chars); }
1694 break;
1695
1696 case 15:
1697 #line 217 "../../src/parse-gram.y"
1698 {
1699 nondeterministic_parser = true;
1700 glr_parser = true;
1701 }
1702 break;
1703
1704 case 16:
1705 #line 222 "../../src/parse-gram.y"
1706 {
1707 muscle_code_grow ("initial_action", (yyvsp[0].chars), (yylsp[0]));
1708 }
1709 break;
1710
1711 case 17:
1712 #line 225 "../../src/parse-gram.y"
1713 { add_param ("lex_param", (yyvsp[0].chars), (yylsp[0])); }
1714 break;
1715
1716 case 18:
1717 #line 226 "../../src/parse-gram.y"
1718 { locations_flag = true; }
1719 break;
1720
1721 case 19:
1722 #line 227 "../../src/parse-gram.y"
1723 { spec_name_prefix = (yyvsp[0].chars); }
1724 break;
1725
1726 case 20:
1727 #line 228 "../../src/parse-gram.y"
1728 { no_lines_flag = true; }
1729 break;
1730
1731 case 21:
1732 #line 229 "../../src/parse-gram.y"
1733 { nondeterministic_parser = true; }
1734 break;
1735
1736 case 22:
1737 #line 230 "../../src/parse-gram.y"
1738 { spec_outfile = (yyvsp[0].chars); }
1739 break;
1740
1741 case 23:
1742 #line 231 "../../src/parse-gram.y"
1743 { add_param ("parse_param", (yyvsp[0].chars), (yylsp[0])); }
1744 break;
1745
1746 case 24:
1747 #line 232 "../../src/parse-gram.y"
1748 { pure_parser = true; }
1749 break;
1750
1751 case 25:
1752 #line 233 "../../src/parse-gram.y"
1753 { version_check (&(yylsp[0]), (yyvsp[0].chars)); }
1754 break;
1755
1756 case 26:
1757 #line 234 "../../src/parse-gram.y"
1758 { skeleton = (yyvsp[0].chars); }
1759 break;
1760
1761 case 27:
1762 #line 235 "../../src/parse-gram.y"
1763 { token_table_flag = true; }
1764 break;
1765
1766 case 28:
1767 #line 236 "../../src/parse-gram.y"
1768 { report_flag = report_states; }
1769 break;
1770
1771 case 29:
1772 #line 237 "../../src/parse-gram.y"
1773 { yacc_flag = true; }
1774 break;
1775
1776 case 33:
1777 #line 245 "../../src/parse-gram.y"
1778 {
1779 grammar_start_symbol_set ((yyvsp[0].symbol), (yylsp[0]));
1780 }
1781 break;
1782
1783 case 34:
1784 #line 249 "../../src/parse-gram.y"
1785 {
1786 typed = true;
1787 MUSCLE_INSERT_INT ("stype_line", (yylsp[0]).start.line);
1788 muscle_insert ("stype", (yyvsp[0].chars));
1789 }
1790 break;
1791
1792 case 35:
1793 #line 255 "../../src/parse-gram.y"
1794 {
1795 symbol_list *list;
1796 for (list = (yyvsp[0].list); list; list = list->next)
1797 symbol_destructor_set (list->sym, (yyvsp[-1].chars), (yylsp[-1]));
1798 symbol_list_free ((yyvsp[0].list));
1799 }
1800 break;
1801
1802 case 36:
1803 #line 262 "../../src/parse-gram.y"
1804 {
1805 symbol_list *list;
1806 for (list = (yyvsp[0].list); list; list = list->next)
1807 symbol_printer_set (list->sym, (yyvsp[-1].chars), list->location);
1808 symbol_list_free ((yyvsp[0].list));
1809 }
1810 break;
1811
1812 case 37:
1813 #line 269 "../../src/parse-gram.y"
1814 {
1815 default_prec = true;
1816 }
1817 break;
1818
1819 case 38:
1820 #line 273 "../../src/parse-gram.y"
1821 {
1822 default_prec = false;
1823 }
1824 break;
1825
1826 case 39:
1827 #line 279 "../../src/parse-gram.y"
1828 { current_class = nterm_sym; }
1829 break;
1830
1831 case 40:
1832 #line 280 "../../src/parse-gram.y"
1833 {
1834 current_class = unknown_sym;
1835 current_type = NULL;
1836 }
1837 break;
1838
1839 case 41:
1840 #line 284 "../../src/parse-gram.y"
1841 { current_class = token_sym; }
1842 break;
1843
1844 case 42:
1845 #line 285 "../../src/parse-gram.y"
1846 {
1847 current_class = unknown_sym;
1848 current_type = NULL;
1849 }
1850 break;
1851
1852 case 43:
1853 #line 290 "../../src/parse-gram.y"
1854 {
1855 symbol_list *list;
1856 for (list = (yyvsp[0].list); list; list = list->next)
1857 symbol_type_set (list->sym, (yyvsp[-1].uniqstr), (yylsp[-1]));
1858 symbol_list_free ((yyvsp[0].list));
1859 }
1860 break;
1861
1862 case 44:
1863 #line 300 "../../src/parse-gram.y"
1864 {
1865 symbol_list *list;
1866 ++current_prec;
1867 for (list = (yyvsp[0].list); list; list = list->next)
1868 {
1869 symbol_type_set (list->sym, current_type, (yylsp[-1]));
1870 symbol_precedence_set (list->sym, current_prec, (yyvsp[-2].assoc), (yylsp[-2]));
1871 }
1872 symbol_list_free ((yyvsp[0].list));
1873 current_type = NULL;
1874 }
1875 break;
1876
1877 case 45:
1878 #line 314 "../../src/parse-gram.y"
1879 { (yyval.assoc) = left_assoc; }
1880 break;
1881
1882 case 46:
1883 #line 315 "../../src/parse-gram.y"
1884 { (yyval.assoc) = right_assoc; }
1885 break;
1886
1887 case 47:
1888 #line 316 "../../src/parse-gram.y"
1889 { (yyval.assoc) = non_assoc; }
1890 break;
1891
1892 case 48:
1893 #line 320 "../../src/parse-gram.y"
1894 { current_type = NULL; }
1895 break;
1896
1897 case 49:
1898 #line 321 "../../src/parse-gram.y"
1899 { current_type = (yyvsp[0].uniqstr); }
1900 break;
1901
1902 case 50:
1903 #line 327 "../../src/parse-gram.y"
1904 { (yyval.list) = symbol_list_new ((yyvsp[0].symbol), (yylsp[0])); }
1905 break;
1906
1907 case 51:
1908 #line 328 "../../src/parse-gram.y"
1909 { (yyval.list) = symbol_list_prepend ((yyvsp[-1].list), (yyvsp[0].symbol), (yylsp[0])); }
1910 break;
1911
1912 case 52:
1913 #line 334 "../../src/parse-gram.y"
1914 {
1915 current_type = (yyvsp[0].uniqstr);
1916 }
1917 break;
1918
1919 case 53:
1920 #line 338 "../../src/parse-gram.y"
1921 {
1922 symbol_class_set ((yyvsp[0].symbol), current_class, (yylsp[0]));
1923 symbol_type_set ((yyvsp[0].symbol), current_type, (yylsp[0]));
1924 }
1925 break;
1926
1927 case 54:
1928 #line 343 "../../src/parse-gram.y"
1929 {
1930 symbol_class_set ((yyvsp[-1].symbol), current_class, (yylsp[-1]));
1931 symbol_type_set ((yyvsp[-1].symbol), current_type, (yylsp[-1]));
1932 symbol_user_token_number_set ((yyvsp[-1].symbol), (yyvsp[0].integer), (yylsp[0]));
1933 }
1934 break;
1935
1936 case 55:
1937 #line 349 "../../src/parse-gram.y"
1938 {
1939 symbol_class_set ((yyvsp[-1].symbol), current_class, (yylsp[-1]));
1940 symbol_type_set ((yyvsp[-1].symbol), current_type, (yylsp[-1]));
1941 symbol_make_alias ((yyvsp[-1].symbol), (yyvsp[0].symbol), (yyloc));
1942 }
1943 break;
1944
1945 case 56:
1946 #line 355 "../../src/parse-gram.y"
1947 {
1948 symbol_class_set ((yyvsp[-2].symbol), current_class, (yylsp[-2]));
1949 symbol_type_set ((yyvsp[-2].symbol), current_type, (yylsp[-2]));
1950 symbol_user_token_number_set ((yyvsp[-2].symbol), (yyvsp[-1].integer), (yylsp[-1]));
1951 symbol_make_alias ((yyvsp[-2].symbol), (yyvsp[0].symbol), (yyloc));
1952 }
1953 break;
1954
1955 case 62:
1956 #line 384 "../../src/parse-gram.y"
1957 {
1958 if (yacc_flag)
1959 complain_at ((yyloc), _("POSIX forbids declarations in the grammar"));
1960 }
1961 break;
1962
1963 case 63:
1964 #line 389 "../../src/parse-gram.y"
1965 {
1966 yyerrok;
1967 }
1968 break;
1969
1970 case 64:
1971 #line 395 "../../src/parse-gram.y"
1972 { current_lhs = (yyvsp[0].symbol); current_lhs_location = (yylsp[0]); }
1973 break;
1974
1975 case 66:
1976 #line 399 "../../src/parse-gram.y"
1977 { grammar_rule_end ((yylsp[0])); }
1978 break;
1979
1980 case 67:
1981 #line 400 "../../src/parse-gram.y"
1982 { grammar_rule_end ((yylsp[0])); }
1983 break;
1984
1985 case 69:
1986 #line 406 "../../src/parse-gram.y"
1987 { grammar_rule_begin (current_lhs, current_lhs_location); }
1988 break;
1989
1990 case 70:
1991 #line 408 "../../src/parse-gram.y"
1992 { grammar_current_rule_symbol_append ((yyvsp[0].symbol), (yylsp[0])); }
1993 break;
1994
1995 case 71:
1996 #line 410 "../../src/parse-gram.y"
1997 { grammar_current_rule_action_append ((yyvsp[0].chars), (yylsp[0])); }
1998 break;
1999
2000 case 72:
2001 #line 412 "../../src/parse-gram.y"
2002 { grammar_current_rule_prec_set ((yyvsp[0].symbol), (yylsp[0])); }
2003 break;
2004
2005 case 73:
2006 #line 414 "../../src/parse-gram.y"
2007 { grammar_current_rule_dprec_set ((yyvsp[0].integer), (yylsp[0])); }
2008 break;
2009
2010 case 74:
2011 #line 416 "../../src/parse-gram.y"
2012 { grammar_current_rule_merge_set ((yyvsp[0].uniqstr), (yylsp[0])); }
2013 break;
2014
2015 case 75:
2016 #line 420 "../../src/parse-gram.y"
2017 { (yyval.symbol) = (yyvsp[0].symbol); }
2018 break;
2019
2020 case 76:
2021 #line 421 "../../src/parse-gram.y"
2022 { (yyval.symbol) = (yyvsp[0].symbol); }
2023 break;
2024
2025 case 77:
2026 #line 426 "../../src/parse-gram.y"
2027 { (yyval.chars) = (yyvsp[0].chars); }
2028 break;
2029
2030 case 78:
2031 #line 432 "../../src/parse-gram.y"
2032 {
2033 (yyval.symbol) = symbol_get (quotearg_style (c_quoting_style, (yyvsp[0].chars)), (yylsp[0]));
2034 symbol_class_set ((yyval.symbol), token_sym, (yylsp[0]));
2035 }
2036 break;
2037
2038 case 79:
2039 #line 441 "../../src/parse-gram.y"
2040 { (yyval.chars) = (yyvsp[0].chars); }
2041 break;
2042
2043 case 81:
2044 #line 448 "../../src/parse-gram.y"
2045 {
2046 muscle_code_grow ("epilogue", (yyvsp[0].chars), (yylsp[0]));
2047 scanner_last_string_free ();
2048 }
2049 break;
2050
2051
2052 default: break;
2053 }
2054
2055 /* Line 1249 of yacc.c. */
2056 #line 2057 "../../src/parse-gram.c"
2057 \f
2058 yyvsp -= yylen;
2059 yyssp -= yylen;
2060 yylsp -= yylen;
2061
2062 YY_STACK_PRINT (yyss, yyssp);
2063
2064 *++yyvsp = yyval;
2065 *++yylsp = yyloc;
2066
2067 /* Now `shift' the result of the reduction. Determine what state
2068 that goes to, based on the state we popped back to and the rule
2069 number reduced by. */
2070
2071 yyn = yyr1[yyn];
2072
2073 yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
2074 if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
2075 yystate = yytable[yystate];
2076 else
2077 yystate = yydefgoto[yyn - YYNTOKENS];
2078
2079 goto yynewstate;
2080
2081
2082 /*------------------------------------.
2083 | yyerrlab -- here on detecting error |
2084 `------------------------------------*/
2085 yyerrlab:
2086 /* If not already recovering from an error, report this error. */
2087 if (!yyerrstatus)
2088 {
2089 ++yynerrs;
2090 #if ! YYERROR_VERBOSE
2091 yyerror (YY_("syntax error"));
2092 #else
2093 {
2094 YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
2095 if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
2096 {
2097 YYSIZE_T yyalloc = 2 * yysize;
2098 if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
2099 yyalloc = YYSTACK_ALLOC_MAXIMUM;
2100 if (yymsg != yymsgbuf)
2101 YYSTACK_FREE (yymsg);
2102 yymsg = (char *) YYSTACK_ALLOC (yyalloc);
2103 if (yymsg)
2104 yymsg_alloc = yyalloc;
2105 else
2106 {
2107 yymsg = yymsgbuf;
2108 yymsg_alloc = sizeof yymsgbuf;
2109 }
2110 }
2111
2112 if (0 < yysize && yysize <= yymsg_alloc)
2113 {
2114 (void) yysyntax_error (yymsg, yystate, yychar);
2115 yyerror (yymsg);
2116 }
2117 else
2118 {
2119 yyerror (YY_("syntax error"));
2120 if (yysize != 0)
2121 goto yyexhaustedlab;
2122 }
2123 }
2124 #endif
2125 }
2126
2127 yyerror_range[0] = yylloc;
2128
2129 if (yyerrstatus == 3)
2130 {
2131 /* If just tried and failed to reuse look-ahead token after an
2132 error, discard it. */
2133
2134 if (yychar <= YYEOF)
2135 {
2136 /* Return failure if at end of input. */
2137 if (yychar == YYEOF)
2138 YYABORT;
2139 }
2140 else
2141 {
2142 yydestruct ("Error: discarding", yytoken, &yylval, &yylloc);
2143 yychar = YYEMPTY;
2144 }
2145 }
2146
2147 /* Else will try to reuse look-ahead token after shifting the error
2148 token. */
2149 goto yyerrlab1;
2150
2151
2152 /*---------------------------------------------------.
2153 | yyerrorlab -- error raised explicitly by YYERROR. |
2154 `---------------------------------------------------*/
2155 yyerrorlab:
2156
2157 /* Pacify compilers like GCC when the user code never invokes
2158 YYERROR and the label yyerrorlab therefore never appears in user
2159 code. */
2160 if (0)
2161 goto yyerrorlab;
2162
2163 yyerror_range[0] = yylsp[1-yylen];
2164 yylsp -= yylen;
2165 yyvsp -= yylen;
2166 yyssp -= yylen;
2167 yystate = *yyssp;
2168 goto yyerrlab1;
2169
2170
2171 /*-------------------------------------------------------------.
2172 | yyerrlab1 -- common code for both syntax error and YYERROR. |
2173 `-------------------------------------------------------------*/
2174 yyerrlab1:
2175 yyerrstatus = 3; /* Each real token shifted decrements this. */
2176
2177 for (;;)
2178 {
2179 yyn = yypact[yystate];
2180 if (yyn != YYPACT_NINF)
2181 {
2182 yyn += YYTERROR;
2183 if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
2184 {
2185 yyn = yytable[yyn];
2186 if (0 < yyn)
2187 break;
2188 }
2189 }
2190
2191 /* Pop the current state because it cannot handle the error token. */
2192 if (yyssp == yyss)
2193 YYABORT;
2194
2195 yyerror_range[0] = *yylsp;
2196 yydestruct ("Error: popping", yystos[yystate], yyvsp, yylsp);
2197 YYPOPSTACK;
2198 yystate = *yyssp;
2199 YY_STACK_PRINT (yyss, yyssp);
2200 }
2201
2202 if (yyn == YYFINAL)
2203 YYACCEPT;
2204
2205 *++yyvsp = yylval;
2206
2207 yyerror_range[1] = yylloc;
2208 /* Using YYLLOC is tempting, but would change the location of
2209 the look-ahead. YYLOC is available though. */
2210 YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2);
2211 *++yylsp = yyloc;
2212
2213 /* Shift the error token. */
2214 YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
2215
2216 yystate = yyn;
2217 goto yynewstate;
2218
2219
2220 /*-------------------------------------.
2221 | yyacceptlab -- YYACCEPT comes here. |
2222 `-------------------------------------*/
2223 yyacceptlab:
2224 yyresult = 0;
2225 goto yyreturn;
2226
2227 /*-----------------------------------.
2228 | yyabortlab -- YYABORT comes here. |
2229 `-----------------------------------*/
2230 yyabortlab:
2231 yyresult = 1;
2232 goto yyreturn;
2233
2234 #ifndef yyoverflow
2235 /*-------------------------------------------------.
2236 | yyexhaustedlab -- memory exhaustion comes here. |
2237 `-------------------------------------------------*/
2238 yyexhaustedlab:
2239 yyerror (YY_("memory exhausted"));
2240 yyresult = 2;
2241 /* Fall through. */
2242 #endif
2243
2244 yyreturn:
2245 if (yychar != YYEOF && yychar != YYEMPTY)
2246 yydestruct ("Cleanup: discarding lookahead",
2247 yytoken, &yylval, &yylloc);
2248 while (yyssp != yyss)
2249 {
2250 yydestruct ("Cleanup: popping",
2251 yystos[*yyssp], yyvsp, yylsp);
2252 YYPOPSTACK;
2253 }
2254 #ifndef yyoverflow
2255 if (yyss != yyssa)
2256 YYSTACK_FREE (yyss);
2257 #endif
2258 #if YYERROR_VERBOSE
2259 if (yymsg != yymsgbuf)
2260 YYSTACK_FREE (yymsg);
2261 #endif
2262 return yyresult;
2263 }
2264
2265
2266 #line 454 "../../src/parse-gram.y"
2267
2268
2269
2270 /* Return the location of the left-hand side of a rule whose
2271 right-hand side is RHS[1] ... RHS[N]. Ignore empty nonterminals in
2272 the right-hand side, and return an empty location equal to the end
2273 boundary of RHS[0] if the right-hand side is empty. */
2274
2275 static YYLTYPE
2276 lloc_default (YYLTYPE const *rhs, int n)
2277 {
2278 int i;
2279 YYLTYPE loc;
2280
2281 /* SGI MIPSpro 7.4.1m miscompiles "loc.start = loc.end = rhs[n].end;".
2282 The bug is fixed in 7.4.2m, but play it safe for now. */
2283 loc.start = rhs[n].end;
2284 loc.end = rhs[n].end;
2285
2286 /* Ignore empty nonterminals the start of the the right-hand side.
2287 Do not bother to ignore them at the end of the right-hand side,
2288 since empty nonterminals have the same end as their predecessors. */
2289 for (i = 1; i <= n; i++)
2290 if (! equal_boundaries (rhs[i].start, rhs[i].end))
2291 {
2292 loc.start = rhs[i].start;
2293 break;
2294 }
2295
2296 return loc;
2297 }
2298
2299
2300 /* Add a lex-param or a parse-param (depending on TYPE) with
2301 declaration DECL and location LOC. */
2302
2303 static void
2304 add_param (char const *type, char *decl, location loc)
2305 {
2306 static char const alphanum[26 + 26 + 1 + 10] =
2307 "abcdefghijklmnopqrstuvwxyz"
2308 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
2309 "_"
2310 "0123456789";
2311 char const *name_start = NULL;
2312 char *p;
2313
2314 /* Stop on last actual character. */
2315 for (p = decl; p[1]; p++)
2316 if ((p == decl
2317 || ! memchr (alphanum, p[-1], sizeof alphanum))
2318 && memchr (alphanum, p[0], sizeof alphanum - 10))
2319 name_start = p;
2320
2321 /* Strip the surrounding '{' and '}', and any blanks just inside
2322 the braces. */
2323 while (*--p == ' ' || *p == '\t')
2324 continue;
2325 p[1] = '\0';
2326 while (*++decl == ' ' || *decl == '\t')
2327 continue;
2328
2329 if (! name_start)
2330 complain_at (loc, _("missing identifier in parameter declaration"));
2331 else
2332 {
2333 char *name;
2334 size_t name_len;
2335
2336 for (name_len = 1;
2337 memchr (alphanum, name_start[name_len], sizeof alphanum);
2338 name_len++)
2339 continue;
2340
2341 name = xmalloc (name_len + 1);
2342 memcpy (name, name_start, name_len);
2343 name[name_len] = '\0';
2344 muscle_pair_list_grow (type, decl, name);
2345 free (name);
2346 }
2347
2348 scanner_last_string_free ();
2349 }
2350
2351 static void
2352 version_check (location const *loc, char const *version)
2353 {
2354 if (strverscmp (version, PACKAGE_VERSION) > 0)
2355 complain_at (*loc, "require bison %s, but have %s",
2356 version, PACKAGE_VERSION);
2357 }
2358
2359 static void
2360 gram_error (location const *loc, char const *msg)
2361 {
2362 complain_at (*loc, "%s", msg);
2363 }
2364
2365 char const *
2366 token_name (int type)
2367 {
2368 return yytname[YYTRANSLATE (type)];
2369 }
2370