1 : /* -*-C-*- Note some compilers choke on comments on `#line' lines. */
2 : #line
3 : /* Skeleton output parser for bison,
4 :
5 : Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 Free Software
6 : Foundation, Inc.
7 :
8 : This program is free software; you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation; either version 2, or (at your option)
11 : any later version.
12 :
13 : This program is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with this program; if not, write to the Free Software
20 : Foundation, Inc., 59 Temple Place - Suite 330,
21 : Boston, MA 02111-1307, USA. */
22 :
23 : /* As a special exception, when this file is copied by Bison into a
24 : Bison output file, you may use that output file without restriction.
25 : This special exception was added by the Free Software Foundation
26 : in version 1.24 of Bison. */
27 :
28 : /* This is the parser code that is written into each bison parser when
29 : the %semantic_parser declaration is not specified in the grammar.
30 : It was written by Richard Stallman by simplifying the hairy parser
31 : used when %semantic_parser is specified. */
32 :
33 : /* All symbols defined below should begin with yy or YY, to avoid
34 : infringing on user name space. This should be done even for local
35 : variables, as they might otherwise be expanded by user macros.
36 : There are some unavoidable exceptions within include files to
37 : define necessary library symbols; they are noted "INFRINGES ON
38 : USER NAME SPACE" below. */
39 :
40 : #if ! defined (yyoverflow) || defined (YYERROR_VERBOSE)
41 :
42 : /* The parser invokes alloca or malloc; define the necessary symbols. */
43 :
44 : # if YYSTACK_USE_ALLOCA
45 : # define YYSTACK_ALLOC alloca
46 : # else
47 : # ifndef YYSTACK_USE_ALLOCA
48 : # if defined (alloca) || defined (_ALLOCA_H)
49 : # define YYSTACK_ALLOC alloca
50 : # else
51 : # ifdef __GNUC__
52 : # define YYSTACK_ALLOC __builtin_alloca
53 : # endif
54 : # endif
55 : # endif
56 : # endif
57 :
58 : # ifdef YYSTACK_ALLOC
59 : /* Pacify GCC's `empty if-body' warning. */
60 : # define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
61 : # else
62 : # if defined (__STDC__) || defined (__cplusplus)
63 : # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
64 : # define YYSIZE_T size_t
65 : # endif
66 : # define YYSTACK_ALLOC malloc
67 : # define YYSTACK_FREE free
68 : # endif
69 : #endif /* ! defined (yyoverflow) || defined (YYERROR_VERBOSE) */
70 :
71 :
72 : #if (! defined (yyoverflow) \
73 : && (! defined (__cplusplus) \
74 : || (YYLTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
75 :
76 : /* A type that is properly aligned for any stack member. */
77 : union yyalloc
78 : {
79 : short yyss;
80 : YYSTYPE yyvs;
81 : # if YYLSP_NEEDED
82 : YYLTYPE yyls;
83 : # endif
84 : };
85 :
86 : /* The size of the maximum gap between one aligned stack and the next. */
87 : # define YYSTACK_GAP_MAX (sizeof (union yyalloc) - 1)
88 :
89 : /* The size of an array large to enough to hold all stacks, each with
90 : N elements. */
91 : # if YYLSP_NEEDED
92 : # define YYSTACK_BYTES(N) \
93 : ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
94 : + 2 * YYSTACK_GAP_MAX)
95 : # else
96 : # define YYSTACK_BYTES(N) \
97 : ((N) * (sizeof (short) + sizeof (YYSTYPE)) \
98 : + YYSTACK_GAP_MAX)
99 : # endif
100 :
101 : /* Copy COUNT objects from FROM to TO. The source and destination do
102 : not overlap. */
103 : # ifndef YYCOPY
104 : # if 1 < __GNUC__
105 : # define YYCOPY(To, From, Count) \
106 : __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
107 : # else
108 : # define YYCOPY(To, From, Count) \
109 : do \
110 : { \
111 : register YYSIZE_T yyi; \
112 : for (yyi = 0; yyi < (Count); yyi++) \
113 : (To)[yyi] = (From)[yyi]; \
114 : } \
115 : while (0)
116 : # endif
117 : # endif
118 :
119 : /* Relocate STACK from its old location to the new one. The
120 : local variables YYSIZE and YYSTACKSIZE give the old and new number of
121 : elements in the stack, and YYPTR gives the new location of the
122 : stack. Advance YYPTR to a properly aligned location for the next
123 : stack. */
124 : # define YYSTACK_RELOCATE(Stack) \
125 : do \
126 : { \
127 : YYSIZE_T yynewbytes; \
128 : YYCOPY (&yyptr->Stack, Stack, yysize); \
129 : Stack = &yyptr->Stack; \
130 : yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAX; \
131 : yyptr += yynewbytes / sizeof (*yyptr); \
132 : } \
133 : while (0)
134 :
135 : #endif
136 :
137 :
138 : #if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
139 : # define YYSIZE_T __SIZE_TYPE__
140 : #endif
141 : #if ! defined (YYSIZE_T) && defined (size_t)
142 : # define YYSIZE_T size_t
143 : #endif
144 : #if ! defined (YYSIZE_T)
145 : # if defined (__STDC__) || defined (__cplusplus)
146 : # include <stddef.h> /* INFRINGES ON USER NAME SPACE */
147 : # define YYSIZE_T size_t
148 : # endif
149 : #endif
150 : #if ! defined (YYSIZE_T)
151 : # define YYSIZE_T unsigned int
152 : #endif
153 :
154 : #define yyerrok (yyerrstatus = 0)
155 : #define yyclearin (yychar = YYEMPTY)
156 : #define YYEMPTY -2
157 : #define YYEOF 0
158 : #define YYACCEPT goto yyacceptlab
159 : #define YYABORT goto yyabortlab
160 : #define YYERROR goto yyerrlab1
161 : /* Like YYERROR except do call yyerror. This remains here temporarily
162 : to ease the transition to the new meaning of YYERROR, for GCC.
163 : Once GCC version 2 has supplanted version 1, this can go. */
164 : #define YYFAIL goto yyerrlab
165 : #define YYRECOVERING() (!!yyerrstatus)
166 : #define YYBACKUP(Token, Value) \
167 : do \
168 : if (yychar == YYEMPTY && yylen == 1) \
169 : { \
170 : yychar = (Token); \
171 : yylval = (Value); \
172 : yychar1 = YYTRANSLATE (yychar); \
173 : YYPOPSTACK; \
174 : goto yybackup; \
175 : } \
176 : else \
177 : { \
178 : yyerror ("syntax error: cannot back up"); \
179 : YYERROR; \
180 : } \
181 : while (0)
182 :
183 : #define YYTERROR 1
184 : #define YYERRCODE 256
185 :
186 :
187 : /* YYLLOC_DEFAULT -- Compute the default location (before the actions
188 : are run).
189 :
190 : When YYLLOC_DEFAULT is run, CURRENT is set the location of the
191 : first token. By default, to implement support for ranges, extend
192 : its range to the last symbol. */
193 :
194 : #ifndef YYLLOC_DEFAULT
195 : # define YYLLOC_DEFAULT(Current, Rhs, N) \
196 : Current.last_line = Rhs[N].last_line; \
197 : Current.last_column = Rhs[N].last_column;
198 : #endif
199 :
200 :
201 : /* YYLEX -- calling `yylex' with the right arguments. */
202 :
203 : #if YYPURE
204 : # if YYLSP_NEEDED
205 : # ifdef YYLEX_PARAM
206 : # define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM)
207 : # else
208 : # define YYLEX yylex (&yylval, &yylloc)
209 : # endif
210 : # else /* !YYLSP_NEEDED */
211 : # ifdef YYLEX_PARAM
212 : # define YYLEX yylex (&yylval, YYLEX_PARAM)
213 : # else
214 : # define YYLEX yylex (&yylval)
215 : # endif
216 : # endif /* !YYLSP_NEEDED */
217 : #else /* !YYPURE */
218 : # define YYLEX yylex ()
219 : #endif /* !YYPURE */
220 :
221 :
222 : /* Enable debugging if requested. */
223 : #if YYDEBUG
224 :
225 : # ifndef YYFPRINTF
226 : # include <stdio.h> /* INFRINGES ON USER NAME SPACE */
227 : # define YYFPRINTF fprintf
228 : # endif
229 :
230 : # define YYDPRINTF(Args) \
231 : do { \
232 : if (yydebug) \
233 : YYFPRINTF Args; \
234 : } while (0)
235 : /* Nonzero means print parse trace. It is left uninitialized so that
236 : multiple parsers can coexist. */
237 : int yydebug;
238 : #else /* !YYDEBUG */
239 : # define YYDPRINTF(Args)
240 : #endif /* !YYDEBUG */
241 :
242 : /* YYINITDEPTH -- initial size of the parser's stacks. */
243 : #ifndef YYINITDEPTH
244 : # define YYINITDEPTH 200
245 : #endif
246 :
247 : /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
248 : if the built-in stack extension method is used).
249 :
250 : Do not make this value too large; the results are undefined if
251 : SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH)
252 : evaluated with infinite-precision integer arithmetic. */
253 :
254 : #if YYMAXDEPTH == 0
255 : # undef YYMAXDEPTH
256 : #endif
257 :
258 : #ifndef YYMAXDEPTH
259 : # define YYMAXDEPTH 10000
260 : #endif
261 :
262 : #ifdef YYERROR_VERBOSE
263 :
264 : # ifndef yystrlen
265 : # if defined (__GLIBC__) && defined (_STRING_H)
266 : # define yystrlen strlen
267 : # else
268 : /* Return the length of YYSTR. */
269 : static YYSIZE_T
270 : # if defined (__STDC__) || defined (__cplusplus)
271 : yystrlen (const char *yystr)
272 : # else
273 : yystrlen (yystr)
274 : const char *yystr;
275 : # endif
276 : {
277 : register const char *yys = yystr;
278 :
279 : while (*yys++ != '\0')
280 : continue;
281 :
282 : return yys - yystr - 1;
283 : }
284 : # endif
285 : # endif
286 :
287 : # ifndef yystpcpy
288 : # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
289 : # define yystpcpy stpcpy
290 : # else
291 : /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
292 : YYDEST. */
293 : static char *
294 : # if defined (__STDC__) || defined (__cplusplus)
295 : yystpcpy (char *yydest, const char *yysrc)
296 : # else
297 : yystpcpy (yydest, yysrc)
298 : char *yydest;
299 : const char *yysrc;
300 : # endif
301 : {
302 : register char *yyd = yydest;
303 : register const char *yys = yysrc;
304 :
305 : while ((*yyd++ = *yys++) != '\0')
306 : continue;
307 :
308 : return yyd - 1;
309 : }
310 : # endif
311 : # endif
312 : #endif
313 :
314 : #line
315 :
316 : /* The user can define YYPARSE_PARAM as the name of an argument to be passed
317 : into yyparse. The argument should have type void *.
318 : It should actually point to an object.
319 : Grammar actions can access the variable by casting it
320 : to the proper pointer type. */
321 :
322 : #ifdef YYPARSE_PARAM
323 : # if defined (__STDC__) || defined (__cplusplus)
324 : # define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
325 : # define YYPARSE_PARAM_DECL
326 : # else
327 : # define YYPARSE_PARAM_ARG YYPARSE_PARAM
328 : # define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
329 : # endif
330 : #else /* !YYPARSE_PARAM */
331 : # define YYPARSE_PARAM_ARG
332 : # define YYPARSE_PARAM_DECL
333 : #endif /* !YYPARSE_PARAM */
334 :
335 : /* Prevent warning if -Wstrict-prototypes. */
336 : #ifdef __GNUC__
337 : # ifdef YYPARSE_PARAM
338 : int yyparse (void *);
339 : # else
340 : int yyparse (void);
341 : # endif
342 : #endif
343 :
344 : /* YY_DECL_VARIABLES -- depending whether we use a pure parser,
345 : variables are global, or local to YYPARSE. */
346 :
347 : #define YY_DECL_NON_LSP_VARIABLES \
348 : /* The lookahead symbol. */ \
349 : int yychar; \
350 : \
351 : /* The semantic value of the lookahead symbol. */ \
352 : YYSTYPE yylval; \
353 : \
354 : /* Number of parse errors so far. */ \
355 : int yynerrs;
356 :
357 : #if YYLSP_NEEDED
358 : # define YY_DECL_VARIABLES \
359 : YY_DECL_NON_LSP_VARIABLES \
360 : \
361 : /* Location data for the lookahead symbol. */ \
362 : YYLTYPE yylloc;
363 : #else
364 : # define YY_DECL_VARIABLES \
365 : YY_DECL_NON_LSP_VARIABLES
366 : #endif
367 :
368 :
369 : /* If nonreentrant, generate the variables here. */
370 :
371 : #if !YYPURE
372 : YY_DECL_VARIABLES
373 : #endif /* !YYPURE */
374 :
375 : int
376 : yyparse (YYPARSE_PARAM_ARG)
377 48 : YYPARSE_PARAM_DECL
378 : {
379 : /* If reentrant, generate the variables here. */
380 : #if YYPURE
381 : YY_DECL_VARIABLES
382 : #endif /* !YYPURE */
383 :
384 : register int yystate;
385 : register int yyn;
386 : int yyresult;
387 : /* Number of tokens to shift before error messages enabled. */
388 : int yyerrstatus;
389 : /* Lookahead token as an internal (translated) token number. */
390 : int yychar1 = 0;
391 :
392 : /* Three stacks and their tools:
393 : `yyss': related to states,
394 : `yyvs': related to semantic values,
395 : `yyls': related to locations.
396 :
397 : Refer to the stacks thru separate pointers, to allow yyoverflow
398 : to reallocate them elsewhere. */
399 :
400 : /* The state stack. */
401 : short yyssa[YYINITDEPTH];
402 : short *yyss = yyssa;
403 : register short *yyssp;
404 :
405 : /* The semantic value stack. */
406 : YYSTYPE yyvsa[YYINITDEPTH];
407 : YYSTYPE *yyvs = yyvsa;
408 : register YYSTYPE *yyvsp;
409 :
410 : #if YYLSP_NEEDED
411 : /* The location stack. */
412 : YYLTYPE yylsa[YYINITDEPTH];
413 : YYLTYPE *yyls = yylsa;
414 : YYLTYPE *yylsp;
415 : #endif
416 :
417 : #if YYLSP_NEEDED
418 : # define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
419 : #else
420 : # define YYPOPSTACK (yyvsp--, yyssp--)
421 : #endif
422 :
423 : YYSIZE_T yystacksize = YYINITDEPTH;
424 :
425 :
426 : /* The variables used to return semantic value and location from the
427 : action routines. */
428 : YYSTYPE yyval;
429 : #if YYLSP_NEEDED
430 : YYLTYPE yyloc;
431 : #endif
432 :
433 : /* When reducing, the number of symbols on the RHS of the reduced
434 : rule. */
435 : int yylen;
436 :
437 : YYDPRINTF ((stderr, "Starting parse\n"));
438 :
439 : yystate = 0;
440 : yyerrstatus = 0;
441 : yynerrs = 0;
442 48 : yychar = YYEMPTY; /* Cause a token to be read. */
443 48 :
444 : /* Initialize stack pointers.
445 : Waste one element of value and location stack
446 : so that they stay on the same level as the state stack.
447 : The wasted elements are never initialized. */
448 :
449 : yyssp = yyss;
450 : yyvsp = yyvs;
451 : #if YYLSP_NEEDED
452 : yylsp = yyls;
453 : #endif
454 : goto yysetstate;
455 :
456 : /*------------------------------------------------------------.
457 : | yynewstate -- Push a new state, which is found in yystate. |
458 : `------------------------------------------------------------*/
459 : yynewstate:
460 166536 : /* In all cases, when you get here, the value and location stacks
461 : have just been pushed. so pushing a state here evens the stacks.
462 : */
463 : yyssp++;
464 166536 :
465 : yysetstate:
466 166536 : *yyssp = yystate;
467 166584 :
468 : if (yyssp >= yyss + yystacksize - 1)
469 166584 : {
470 : /* Get the current used size of the three stacks, in elements. */
471 : YYSIZE_T yysize = yyssp - yyss + 1;
472 :
473 : #ifdef yyoverflow
474 : {
475 : /* Give user a chance to reallocate the stack. Use copies of
476 : these so that the &'s don't force the real ones into
477 : memory. */
478 : YYSTYPE *yyvs1 = yyvs;
479 : short *yyss1 = yyss;
480 :
481 : /* Each stack pointer address is followed by the size of the
482 : data in use in that stack, in bytes. */
483 : # if YYLSP_NEEDED
484 : YYLTYPE *yyls1 = yyls;
485 : /* This used to be a conditional around just the two extra args,
486 : but that might be undefined if yyoverflow is a macro. */
487 : yyoverflow ("parser stack overflow",
488 : &yyss1, yysize * sizeof (*yyssp),
489 : &yyvs1, yysize * sizeof (*yyvsp),
490 : &yyls1, yysize * sizeof (*yylsp),
491 : &yystacksize);
492 : yyls = yyls1;
493 : # else
494 : yyoverflow ("parser stack overflow",
495 : &yyss1, yysize * sizeof (*yyssp),
496 : &yyvs1, yysize * sizeof (*yyvsp),
497 : &yystacksize);
498 : # endif
499 : yyss = yyss1;
500 : yyvs = yyvs1;
501 : }
502 : #else /* no yyoverflow */
503 : # ifndef YYSTACK_RELOCATE
504 : goto yyoverflowlab;
505 : # else
506 : /* Extend the stack our own way. */
507 : if (yystacksize >= YYMAXDEPTH)
508 : goto yyoverflowlab;
509 : yystacksize *= 2;
510 : if (yystacksize > YYMAXDEPTH)
511 : yystacksize = YYMAXDEPTH;
512 :
513 : {
514 : short *yyss1 = yyss;
515 : union yyalloc *yyptr =
516 : (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
517 : if (! yyptr)
518 : goto yyoverflowlab;
519 : YYSTACK_RELOCATE (yyss);
520 : YYSTACK_RELOCATE (yyvs);
521 : # if YYLSP_NEEDED
522 : YYSTACK_RELOCATE (yyls);
523 : # endif
524 : # undef YYSTACK_RELOCATE
525 : if (yyss1 != yyssa)
526 : YYSTACK_FREE (yyss1);
527 : }
528 : # endif
529 : #endif /* no yyoverflow */
530 :
531 : yyssp = yyss + yysize - 1;
532 : yyvsp = yyvs + yysize - 1;
533 : #if YYLSP_NEEDED
534 : yylsp = yyls + yysize - 1;
535 : #endif
536 :
537 : YYDPRINTF ((stderr, "Stack size increased to %lu\n",
538 : (unsigned long int) yystacksize));
539 :
540 : if (yyssp >= yyss + yystacksize - 1)
541 : YYABORT;
542 : }
543 :
544 : YYDPRINTF ((stderr, "Entering state %d\n", yystate));
545 :
546 : goto yybackup;
547 :
548 :
549 : /*-----------.
550 : | yybackup. |
551 : `-----------*/
552 : yybackup:
553 166584 :
554 : /* Do appropriate processing given the current state. */
555 : /* Read a lookahead token if we need one and don't already have one. */
556 : /* yyresume: */
557 :
558 : /* First try to decide what to do without reference to lookahead token. */
559 :
560 : yyn = yypact[yystate];
561 166584 : if (yyn == YYFLAG)
562 166584 : goto yydefault;
563 87073 :
564 : /* Not known => get a lookahead token if don't already have one. */
565 :
566 : /* yychar is either YYEMPTY or YYEOF
567 : or a valid token in external form. */
568 :
569 : if (yychar == YYEMPTY)
570 87073 : {
571 : YYDPRINTF ((stderr, "Reading a token: "));
572 : yychar = YYLEX;
573 60369 : }
574 :
575 : /* Convert token to internal form (in yychar1) for indexing tables with */
576 :
577 : if (yychar <= 0) /* This means end of input. */
578 87073 : {
579 : yychar1 = 0;
580 : yychar = YYEOF; /* Don't call YYLEX any more */
581 142 :
582 : YYDPRINTF ((stderr, "Now at end of input.\n"));
583 : }
584 : else
585 : {
586 : yychar1 = YYTRANSLATE (yychar);
587 86931 :
588 : #if YYDEBUG
589 : /* We have to keep this `#if YYDEBUG', since we use variables
590 : which are defined only if `YYDEBUG' is set. */
591 : if (yydebug)
592 : {
593 : YYFPRINTF (stderr, "Next token is %d (%s",
594 : yychar, yytname[yychar1]);
595 : /* Give the individual parser a way to print the precise
596 : meaning of a token, for further debugging info. */
597 : # ifdef YYPRINT
598 : YYPRINT (stderr, yychar, yylval);
599 : # endif
600 : YYFPRINTF (stderr, ")\n");
601 : }
602 : #endif
603 : }
604 :
605 : yyn += yychar1;
606 87073 : if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
607 87073 : goto yydefault;
608 :
609 : yyn = yytable[yyn];
610 61656 :
611 : /* yyn is what to do for this token type in this state.
612 : Negative => reduce, -yyn is rule number.
613 : Positive => shift, yyn is new state.
614 : New state is final state => don't bother to shift,
615 : just return success.
616 : 0, or most negative number => error. */
617 :
618 : if (yyn < 0)
619 61656 : {
620 : if (yyn == YYFLAG)
621 1246 : goto yyerrlab;
622 1246 : yyn = -yyn;
623 1246 : goto yyreduce;
624 1246 : }
625 : else if (yyn == 0)
626 60410 : goto yyerrlab;
627 60410 :
628 : if (yyn == YYFINAL)
629 60410 : YYACCEPT;
630 60363 :
631 : /* Shift the lookahead token. */
632 : YYDPRINTF ((stderr, "Shifting token %d (%s), ",
633 : yychar, yytname[yychar1]));
634 :
635 : /* Discard the token being shifted unless it is eof. */
636 : if (yychar != YYEOF)
637 60363 : yychar = YYEMPTY;
638 60316 :
639 : *++yyvsp = yylval;
640 60363 : #if YYLSP_NEEDED
641 : *++yylsp = yylloc;
642 : #endif
643 :
644 : /* Count tokens shifted since error; after three, turn off error
645 : status. */
646 : if (yyerrstatus)
647 60363 : yyerrstatus--;
648 3 :
649 : yystate = yyn;
650 : goto yynewstate;
651 :
652 :
653 : /*-----------------------------------------------------------.
654 : | yydefault -- do the default action for the current state. |
655 : `-----------------------------------------------------------*/
656 : yydefault:
657 104928 : yyn = yydefact[yystate];
658 104928 : if (yyn == 0)
659 104928 : goto yyerrlab;
660 106167 : goto yyreduce;
661 :
662 :
663 : /*-----------------------------.
664 : | yyreduce -- Do a reduction. |
665 : `-----------------------------*/
666 : yyreduce:
667 106167 : /* yyn is the number of a rule to reduce with. */
668 : yylen = yyr2[yyn];
669 106167 :
670 : /* If YYLEN is nonzero, implement the default value of the action:
671 : `$$ = $1'.
672 :
673 : Otherwise, the following line sets YYVAL to the semantic value of
674 : the lookahead token. This behavior is undocumented and Bison
675 : users should not rely upon it. Assigning to YYVAL
676 : unconditionally makes the parser a bit smaller, and it avoids a
677 : GCC warning that YYVAL may be used uninitialized. */
678 : yyval = yyvsp[1-yylen];
679 106167 :
680 : #if YYLSP_NEEDED
681 : /* Similarly for the default location. Let the user run additional
682 : commands if for instance locations are ranges. */
683 : yyloc = yylsp[1-yylen];
684 : YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
685 : #endif
686 :
687 : #if YYDEBUG
688 : /* We have to keep this `#if YYDEBUG', since we use variables which
689 : are defined only if `YYDEBUG' is set. */
690 : if (yydebug)
691 : {
692 : int yyi;
693 :
694 : YYFPRINTF (stderr, "Reducing via rule %d (line %d), ",
695 : yyn, yyrline[yyn]);
696 :
697 : /* Print the symbols being reduced, and their result. */
698 : for (yyi = yyprhs[yyn]; yyrhs[yyi] > 0; yyi++)
699 : YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
700 : YYFPRINTF (stderr, " -> %s\n", yytname[yyr1[yyn]]);
701 : }
702 : #endif
703 : %% actions /* The action file replaces this line. */
704 : #line
705 106167 :
706 : yyvsp -= yylen;
707 106164 : yyssp -= yylen;
708 106164 : #if YYLSP_NEEDED
709 : yylsp -= yylen;
710 : #endif
711 :
712 : #if YYDEBUG
713 : if (yydebug)
714 : {
715 : short *yyssp1 = yyss - 1;
716 : YYFPRINTF (stderr, "state stack now");
717 : while (yyssp1 != yyssp)
718 : YYFPRINTF (stderr, " %d", *++yyssp1);
719 : YYFPRINTF (stderr, "\n");
720 : }
721 : #endif
722 :
723 : *++yyvsp = yyval;
724 106164 : #if YYLSP_NEEDED
725 : *++yylsp = yyloc;
726 : #endif
727 :
728 : /* Now `shift' the result of the reduction. Determine what state
729 : that goes to, based on the state we popped back to and the rule
730 : number reduced by. */
731 :
732 : yyn = yyr1[yyn];
733 :
734 : yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
735 106164 : if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
736 144889 : yystate = yytable[yystate];
737 38725 : else
738 : yystate = yydefgoto[yyn - YYNTBASE];
739 67439 :
740 : goto yynewstate;
741 :
742 :
743 : /*------------------------------------.
744 : | yyerrlab -- here on detecting error |
745 : `------------------------------------*/
746 : yyerrlab:
747 7 : /* If not already recovering from an error, report this error. */
748 : if (!yyerrstatus)
749 7 : {
750 : ++yynerrs;
751 1 :
752 : #ifdef YYERROR_VERBOSE
753 : yyn = yypact[yystate];
754 :
755 : if (yyn > YYFLAG && yyn < YYLAST)
756 : {
757 : YYSIZE_T yysize = 0;
758 : char *yymsg;
759 : int yyx, yycount;
760 :
761 : yycount = 0;
762 : /* Start YYX at -YYN if negative to avoid negative indexes in
763 : YYCHECK. */
764 : for (yyx = yyn < 0 ? -yyn : 0;
765 : yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++)
766 : if (yycheck[yyx + yyn] == yyx)
767 : yysize += yystrlen (yytname[yyx]) + 15, yycount++;
768 : yysize += yystrlen ("parse error, unexpected ") + 1;
769 : yysize += yystrlen (yytname[YYTRANSLATE (yychar)]);
770 : yymsg = (char *) YYSTACK_ALLOC (yysize);
771 : if (yymsg != 0)
772 : {
773 : char *yyp = yystpcpy (yymsg, "parse error, unexpected ");
774 : yyp = yystpcpy (yyp, yytname[YYTRANSLATE (yychar)]);
775 :
776 : if (yycount < 5)
777 : {
778 : yycount = 0;
779 : for (yyx = yyn < 0 ? -yyn : 0;
780 : yyx < (int) (sizeof (yytname) / sizeof (char *));
781 : yyx++)
782 : if (yycheck[yyx + yyn] == yyx)
783 : {
784 : const char *yyq = ! yycount ? ", expecting " : " or ";
785 : yyp = yystpcpy (yyp, yyq);
786 : yyp = yystpcpy (yyp, yytname[yyx]);
787 : yycount++;
788 : }
789 : }
790 : yyerror (yymsg);
791 : YYSTACK_FREE (yymsg);
792 : }
793 : else
794 : yyerror ("parse error; also virtual memory exhausted");
795 : }
796 : else
797 : #endif /* defined (YYERROR_VERBOSE) */
798 : yyerror ("parse error");
799 1 : }
800 : goto yyerrlab1;
801 :
802 :
803 : /*--------------------------------------------------.
804 : | yyerrlab1 -- error raised explicitly by an action |
805 : `--------------------------------------------------*/
806 : yyerrlab1:
807 9 : if (yyerrstatus == 3)
808 9 : {
809 : /* If just tried and failed to reuse lookahead token after an
810 : error, discard it. */
811 :
812 : /* return failure if at end of input */
813 : if (yychar == YYEOF)
814 6 : YYABORT;
815 5 : YYDPRINTF ((stderr, "Discarding token %d (%s).\n",
816 : yychar, yytname[yychar1]));
817 : yychar = YYEMPTY;
818 5 : }
819 :
820 : /* Else will try to reuse lookahead token after shifting the error
821 : token. */
822 :
823 : yyerrstatus = 3; /* Each real token shifted decrements this */
824 :
825 : goto yyerrhandle;
826 9 :
827 :
828 : /*-------------------------------------------------------------------.
829 : | yyerrdefault -- current state does not do anything special for the |
830 : | error token. |
831 : `-------------------------------------------------------------------*/
832 : yyerrdefault:
833 16 : #if 0
834 : /* This is wrong; only states that explicitly want error tokens
835 : should shift them. */
836 :
837 : /* If its default is to accept any token, ok. Otherwise pop it. */
838 : yyn = yydefact[yystate];
839 : if (yyn)
840 : goto yydefault;
841 : #endif
842 :
843 :
844 : /*---------------------------------------------------------------.
845 : | yyerrpop -- pop the current state because it cannot handle the |
846 : | error token |
847 : `---------------------------------------------------------------*/
848 : yyerrpop:
849 16 : if (yyssp == yyss)
850 16 : YYABORT;
851 16 : yyvsp--;
852 16 : yystate = *--yyssp;
853 16 : #if YYLSP_NEEDED
854 : yylsp--;
855 : #endif
856 :
857 : #if YYDEBUG
858 : if (yydebug)
859 : {
860 : short *yyssp1 = yyss - 1;
861 : YYFPRINTF (stderr, "Error: state stack now");
862 : while (yyssp1 != yyssp)
863 : YYFPRINTF (stderr, " %d", *++yyssp1);
864 : YYFPRINTF (stderr, "\n");
865 : }
866 : #endif
867 :
868 : /*--------------.
869 : | yyerrhandle. |
870 : `--------------*/
871 : yyerrhandle:
872 25 : yyn = yypact[yystate];
873 25 : if (yyn == YYFLAG)
874 25 : goto yyerrdefault;
875 20 :
876 : yyn += YYTERROR;
877 20 : if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
878 20 : goto yyerrdefault;
879 :
880 : yyn = yytable[yyn];
881 9 : if (yyn < 0)
882 9 : {
883 : if (yyn == YYFLAG)
884 0 : goto yyerrpop;
885 0 : yyn = -yyn;
886 0 : goto yyreduce;
887 0 : }
888 : else if (yyn == 0)
889 9 : goto yyerrpop;
890 9 :
891 : if (yyn == YYFINAL)
892 9 : YYACCEPT;
893 9 :
894 : YYDPRINTF ((stderr, "Shifting error token, "));
895 :
896 : *++yyvsp = yylval;
897 9 : #if YYLSP_NEEDED
898 : *++yylsp = yylloc;
899 : #endif
900 :
901 : yystate = yyn;
902 : goto yynewstate;
903 9 :
904 :
905 : /*-------------------------------------.
906 : | yyacceptlab -- YYACCEPT comes here. |
907 : `-------------------------------------*/
908 : yyacceptlab:
909 : yyresult = 0;
910 : goto yyreturn;
911 :
912 : /*-----------------------------------.
913 : | yyabortlab -- YYABORT comes here. |
914 : `-----------------------------------*/
915 : yyabortlab:
916 : yyresult = 1;
917 : goto yyreturn;
918 :
919 : /*---------------------------------------------.
920 : | yyoverflowab -- parser overflow comes here. |
921 : `---------------------------------------------*/
922 : yyoverflowlab:
923 0 : yyerror ("parser stack overflow");
924 0 : yyresult = 2;
925 : /* Fall through. */
926 :
927 : yyreturn:
928 47 : #ifndef yyoverflow
929 : if (yyss != yyssa)
930 : YYSTACK_FREE (yyss);
931 : #endif
932 : return yyresult;
933 : }
|
