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10fa2066 | 1 | /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ |
dc08c1d5 | 2 | #line |
7d369561 | 3 | /* This file comes from bison-@bison_version@. */ |
10fa2066 RS |
4 | |
5 | /* Skeleton output parser for bison, | |
a35f64ea | 6 | Copyright 1984, 1989, 1990, 2000 Free Software Foundation, Inc. |
10fa2066 RS |
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 | |
21b14802 | 10 | the Free Software Foundation; either version 2, or (at your option) |
10fa2066 RS |
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 | |
c49a8e71 JT |
20 | Foundation, Inc., 59 Temple Place - Suite 330, |
21 | Boston, MA 02111-1307, USA. */ | |
10fa2066 | 22 | |
c71f8bba RS |
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 | |
cfeaeb52 | 26 | in version 1.24 of Bison. */ |
10fa2066 | 27 | |
71da9eea AD |
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. */ | |
444fbf65 | 32 | |
70ddf897 | 33 | #ifndef YYSTACK_USE_ALLOCA |
361f60b3 AD |
34 | # ifdef alloca |
35 | # define YYSTACK_USE_ALLOCA | |
36 | # else /* alloca not defined */ | |
37 | # ifdef __GNUC__ | |
38 | # define YYSTACK_USE_ALLOCA | |
39 | # define alloca __builtin_alloca | |
40 | # else /* not GNU C. */ | |
41 | # if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) | |
42 | # define YYSTACK_USE_ALLOCA | |
43 | # include <alloca.h> | |
44 | # else /* not sparc */ | |
45 | /* We think this test detects Watcom and Microsoft C. */ | |
46 | /* This used to test MSDOS, but that is a bad idea since that | |
47 | symbol is in the user namespace. */ | |
48 | # if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) | |
49 | # if 0 | |
50 | /* No need for malloc.h, which pollutes the namespace; instead, | |
51 | just don't use alloca. */ | |
52 | # include <malloc.h> | |
53 | # endif | |
54 | # else /* not MSDOS, or __TURBOC__ */ | |
55 | # if defined(_AIX) | |
56 | /* I don't know what this was needed for, but it pollutes the | |
57 | namespace. So I turned it off. rms, 2 May 1997. */ | |
58 | /* #include <malloc.h> */ | |
10fa2066 | 59 | #pragma alloca |
361f60b3 AD |
60 | # define YYSTACK_USE_ALLOCA |
61 | # else /* not MSDOS, or __TURBOC__, or _AIX */ | |
62 | # if 0 | |
63 | /* haible@ilog.fr says this works for HPUX 9.05 and up, and on | |
64 | HPUX 10. Eventually we can turn this on. */ | |
65 | # ifdef __hpux | |
66 | # define YYSTACK_USE_ALLOCA | |
67 | # define alloca __builtin_alloca | |
68 | # endif /* __hpux */ | |
69 | # endif | |
70 | # endif /* not _AIX */ | |
71 | # endif /* not MSDOS, or __TURBOC__ */ | |
72 | # endif /* not sparc */ | |
73 | # endif /* not GNU C */ | |
74 | # endif /* alloca not defined */ | |
70ddf897 RS |
75 | #endif /* YYSTACK_USE_ALLOCA not defined */ |
76 | ||
77 | #ifdef YYSTACK_USE_ALLOCA | |
361f60b3 | 78 | # define YYSTACK_ALLOC alloca |
70ddf897 | 79 | #else |
361f60b3 | 80 | # define YYSTACK_ALLOC malloc |
70ddf897 | 81 | #endif |
10fa2066 | 82 | |
10fa2066 RS |
83 | /* Note: there must be only one dollar sign in this file. |
84 | It is replaced by the list of actions, each action | |
85 | as one case of the switch. */ | |
86 | ||
87 | #define yyerrok (yyerrstatus = 0) | |
88 | #define yyclearin (yychar = YYEMPTY) | |
89 | #define YYEMPTY -2 | |
90 | #define YYEOF 0 | |
70ddf897 RS |
91 | #define YYACCEPT goto yyacceptlab |
92 | #define YYABORT goto yyabortlab | |
10fa2066 | 93 | #define YYERROR goto yyerrlab1 |
71da9eea AD |
94 | /* Like YYERROR except do call yyerror. This remains here temporarily |
95 | to ease the transition to the new meaning of YYERROR, for GCC. | |
10fa2066 RS |
96 | Once GCC version 2 has supplanted version 1, this can go. */ |
97 | #define YYFAIL goto yyerrlab | |
98 | #define YYRECOVERING() (!!yyerrstatus) | |
71da9eea | 99 | #define YYBACKUP(Token, Value) \ |
10fa2066 RS |
100 | do \ |
101 | if (yychar == YYEMPTY && yylen == 1) \ | |
71da9eea AD |
102 | { \ |
103 | yychar = (Token); \ | |
104 | yylval = (Value); \ | |
10fa2066 RS |
105 | yychar1 = YYTRANSLATE (yychar); \ |
106 | YYPOPSTACK; \ | |
107 | goto yybackup; \ | |
108 | } \ | |
109 | else \ | |
71da9eea AD |
110 | { \ |
111 | yyerror ("syntax error: cannot back up"); \ | |
112 | YYERROR; \ | |
113 | } \ | |
10fa2066 RS |
114 | while (0) |
115 | ||
116 | #define YYTERROR 1 | |
117 | #define YYERRCODE 256 | |
118 | ||
10fa2066 | 119 | |
553e2b22 AD |
120 | /* YYLEX -- calling `yylex' with the right arguments. */ |
121 | ||
122 | #if YYPURE | |
5af1f549 | 123 | # if YYLSP_NEEDED |
b07b484a | 124 | # ifdef YYLEX_PARAM |
71da9eea | 125 | # define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) |
b07b484a | 126 | # else |
71da9eea | 127 | # define YYLEX yylex (&yylval, &yylloc) |
b07b484a | 128 | # endif |
71da9eea | 129 | # else /* !YYLSP_NEEDED */ |
b07b484a | 130 | # ifdef YYLEX_PARAM |
71da9eea | 131 | # define YYLEX yylex (&yylval, YYLEX_PARAM) |
b07b484a | 132 | # else |
71da9eea | 133 | # define YYLEX yylex (&yylval) |
b07b484a | 134 | # endif |
71da9eea | 135 | # endif /* !YYLSP_NEEDED */ |
553e2b22 AD |
136 | #else /* !YYPURE */ |
137 | # define YYLEX yylex () | |
138 | #endif /* !YYPURE */ | |
139 | ||
10fa2066 | 140 | |
5a35a6cb | 141 | /* Enable debugging if requested. */ |
0d533154 | 142 | #if YYDEBUG |
5a35a6cb AD |
143 | # define YYDPRINTF(Args) \ |
144 | do { \ | |
145 | if (yydebug) \ | |
146 | fprintf Args; \ | |
147 | } while (0) | |
148 | /* Nonzero means print parse trace. [The following comment makes no | |
149 | sense to me. Could someone clarify it? --akim] Since this is | |
150 | uninitialized, it does not stop multiple parsers from coexisting. | |
151 | */ | |
152 | int yydebug; | |
153 | #else /* !YYDEBUG */ | |
154 | # define YYDPRINTF(Args) | |
155 | #endif /* !YYDEBUG */ | |
156 | ||
157 | /* YYINITDEPTH -- initial size of the parser's stacks. */ | |
10fa2066 | 158 | #ifndef YYINITDEPTH |
b07b484a | 159 | # define YYINITDEPTH 200 |
10fa2066 RS |
160 | #endif |
161 | ||
5a35a6cb AD |
162 | /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only |
163 | if the built-in stack extension method is used). */ | |
10fa2066 | 164 | #if YYMAXDEPTH == 0 |
b07b484a | 165 | # undef YYMAXDEPTH |
10fa2066 RS |
166 | #endif |
167 | ||
168 | #ifndef YYMAXDEPTH | |
b07b484a | 169 | # define YYMAXDEPTH 10000 |
10fa2066 | 170 | #endif |
10fa2066 | 171 | \f |
5e02f2ad RS |
172 | /* Define __yy_memcpy. Note that the size argument |
173 | should be passed with type unsigned int, because that is what the non-GCC | |
174 | definitions require. With GCC, __builtin_memcpy takes an arg | |
175 | of type size_t, but it can handle unsigned int. */ | |
176 | ||
10fa2066 | 177 | #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ |
5a35a6cb | 178 | # define __yy_memcpy(To, From, Count) __builtin_memcpy (To, From, Count) |
10fa2066 | 179 | #else /* not GNU C or C++ */ |
b07b484a | 180 | # ifndef __cplusplus |
10fa2066 RS |
181 | |
182 | /* This is the most reliable way to avoid incompatibilities | |
183 | in available built-in functions on various systems. */ | |
184 | static void | |
c245d0d3 | 185 | __yy_memcpy (to, from, count) |
10fa2066 | 186 | char *to; |
c245d0d3 | 187 | char *from; |
5e02f2ad | 188 | unsigned int count; |
10fa2066 RS |
189 | { |
190 | register char *f = from; | |
191 | register char *t = to; | |
192 | register int i = count; | |
193 | ||
194 | while (i-- > 0) | |
195 | *t++ = *f++; | |
196 | } | |
197 | ||
b07b484a | 198 | # else /* __cplusplus */ |
10fa2066 RS |
199 | |
200 | /* This is the most reliable way to avoid incompatibilities | |
201 | in available built-in functions on various systems. */ | |
202 | static void | |
5e02f2ad | 203 | __yy_memcpy (char *to, char *from, unsigned int count) |
10fa2066 | 204 | { |
10fa2066 | 205 | register char *t = to; |
4cf401b2 | 206 | register char *f = from; |
10fa2066 RS |
207 | register int i = count; |
208 | ||
209 | while (i-- > 0) | |
210 | *t++ = *f++; | |
211 | } | |
212 | ||
b07b484a | 213 | # endif |
10fa2066 RS |
214 | #endif |
215 | \f | |
dc08c1d5 | 216 | #line |
b658bf92 RS |
217 | |
218 | /* The user can define YYPARSE_PARAM as the name of an argument to be passed | |
219 | into yyparse. The argument should have type void *. | |
220 | It should actually point to an object. | |
221 | Grammar actions can access the variable by casting it | |
222 | to the proper pointer type. */ | |
223 | ||
224 | #ifdef YYPARSE_PARAM | |
b07b484a AD |
225 | # ifdef __cplusplus |
226 | # define YYPARSE_PARAM_ARG void *YYPARSE_PARAM | |
227 | # define YYPARSE_PARAM_DECL | |
71da9eea | 228 | # else /* !__cplusplus */ |
b07b484a AD |
229 | # define YYPARSE_PARAM_ARG YYPARSE_PARAM |
230 | # define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; | |
71da9eea AD |
231 | # endif /* !__cplusplus */ |
232 | #else /* !YYPARSE_PARAM */ | |
b07b484a AD |
233 | # define YYPARSE_PARAM_ARG |
234 | # define YYPARSE_PARAM_DECL | |
71da9eea | 235 | #endif /* !YYPARSE_PARAM */ |
b658bf92 | 236 | |
1b181651 PE |
237 | /* Prevent warning if -Wstrict-prototypes. */ |
238 | #ifdef __GNUC__ | |
b07b484a | 239 | # ifdef YYPARSE_PARAM |
1b181651 | 240 | int yyparse (void *); |
b07b484a | 241 | # else |
1b181651 | 242 | int yyparse (void); |
b07b484a | 243 | # endif |
1b181651 PE |
244 | #endif |
245 | ||
a35f64ea AD |
246 | /* YY_DECL_VARIABLES -- depending whether we use a pure parser, |
247 | variables are global, or local to YYPARSE. */ | |
248 | ||
249 | #define _YY_DECL_VARIABLES \ | |
250 | /* The lookahead symbol. */ \ | |
251 | int yychar; \ | |
252 | \ | |
253 | /* The semantic value of the lookahead symbol. */ \ | |
254 | YYSTYPE yylval; \ | |
255 | \ | |
256 | /* Number of parse errors so far. */ \ | |
257 | int yynerrs; | |
258 | ||
259 | #if YYLSP_NEEDED | |
260 | # define YY_DECL_VARIABLES \ | |
261 | _YY_DECL_VARIABLES \ | |
262 | \ | |
263 | /* Location data for the lookahead symbol. */ \ | |
264 | YYLTYPE yylloc; | |
265 | #else | |
266 | # define YY_DECL_VARIABLES \ | |
267 | _YY_DECL_VARIABLES | |
268 | #endif | |
269 | ||
270 | ||
271 | /* If nonreentrant, generate the variables here. */ | |
272 | ||
273 | #if !YYPURE | |
274 | YY_DECL_VARIABLES | |
275 | #endif /* !YYPURE */ | |
276 | ||
10fa2066 | 277 | int |
71da9eea | 278 | yyparse (YYPARSE_PARAM_ARG) |
b658bf92 | 279 | YYPARSE_PARAM_DECL |
10fa2066 | 280 | { |
a35f64ea AD |
281 | /* If reentrant, generate the variables here. */ |
282 | #if YYPURE | |
283 | YY_DECL_VARIABLES | |
284 | #endif /* !YYPURE */ | |
285 | ||
10fa2066 RS |
286 | register int yystate; |
287 | register int yyn; | |
b07b484a AD |
288 | /* Number of tokens to shift before error messages enabled. */ |
289 | int yyerrstatus; | |
290 | /* Lookahead token as an internal (translated) token number. */ | |
291 | int yychar1 = 0; | |
10fa2066 | 292 | |
bb10be54 AD |
293 | /* Three stacks and their tools: |
294 | `yyss': related to states, | |
295 | `yysv': related to semantic values, | |
296 | `yyls': related to locations. | |
297 | ||
298 | Refer to the stacks thru separate pointers, to allow yyoverflow | |
299 | to reallocate them elsewhere. */ | |
300 | ||
b07b484a AD |
301 | /* The state stack. */ |
302 | short yyssa[YYINITDEPTH]; | |
bb10be54 AD |
303 | short *yyss = yyssa; |
304 | register short *yyssp; | |
305 | ||
b07b484a AD |
306 | /* The semantic value stack. */ |
307 | YYSTYPE yyvsa[YYINITDEPTH]; | |
b07b484a | 308 | YYSTYPE *yyvs = yyvsa; |
bb10be54 | 309 | register YYSTYPE *yyvsp; |
10fa2066 | 310 | |
5af1f549 | 311 | #if YYLSP_NEEDED |
b07b484a AD |
312 | /* The location stack. */ |
313 | YYLTYPE yylsa[YYINITDEPTH]; | |
10fa2066 RS |
314 | YYLTYPE *yyls = yylsa; |
315 | YYLTYPE *yylsp; | |
bb10be54 | 316 | #endif |
10fa2066 | 317 | |
5af1f549 | 318 | #if YYLSP_NEEDED |
b07b484a | 319 | # define YYPOPSTACK (yyvsp--, yyssp--, yylsp--) |
10fa2066 | 320 | #else |
b07b484a | 321 | # define YYPOPSTACK (yyvsp--, yyssp--) |
10fa2066 RS |
322 | #endif |
323 | ||
324 | int yystacksize = YYINITDEPTH; | |
70ddf897 | 325 | int yyfree_stacks = 0; |
10fa2066 | 326 | |
bb10be54 | 327 | |
6666f98f AD |
328 | /* The variables used to return semantic value and location from the |
329 | action routines. */ | |
bb10be54 | 330 | YYSTYPE yyval; |
5af1f549 | 331 | # if YYLSP_NEEDED |
6666f98f AD |
332 | YYLTYPE yyloc; |
333 | # endif | |
10fa2066 | 334 | |
6666f98f AD |
335 | /* When reducing, the number of symbols on the RHS of the reduced |
336 | rule. */ | |
10fa2066 RS |
337 | int yylen; |
338 | ||
5a35a6cb | 339 | YYDPRINTF ((stderr, "Starting parse\n")); |
10fa2066 RS |
340 | |
341 | yystate = 0; | |
342 | yyerrstatus = 0; | |
343 | yynerrs = 0; | |
344 | yychar = YYEMPTY; /* Cause a token to be read. */ | |
345 | ||
346 | /* Initialize stack pointers. | |
347 | Waste one element of value and location stack | |
348 | so that they stay on the same level as the state stack. | |
349 | The wasted elements are never initialized. */ | |
350 | ||
351 | yyssp = yyss - 1; | |
352 | yyvsp = yyvs; | |
5af1f549 | 353 | #if YYLSP_NEEDED |
10fa2066 RS |
354 | yylsp = yyls; |
355 | #endif | |
356 | ||
10fa2066 | 357 | |
71da9eea AD |
358 | /*------------------------------------------------------------. |
359 | | yynewstate -- Push a new state, which is found in yystate. | | |
360 | `------------------------------------------------------------*/ | |
361 | yynewstate: | |
362 | /* In all cases, when you get here, the value and location stacks | |
363 | have just been pushed. so pushing a state here evens the stacks. | |
364 | */ | |
10fa2066 RS |
365 | *++yyssp = yystate; |
366 | ||
367 | if (yyssp >= yyss + yystacksize - 1) | |
368 | { | |
71da9eea AD |
369 | /* Give user a chance to reallocate the stack. Use copies of |
370 | these so that the &'s don't force the real ones into memory. | |
371 | */ | |
10fa2066 RS |
372 | YYSTYPE *yyvs1 = yyvs; |
373 | short *yyss1 = yyss; | |
5af1f549 | 374 | #if YYLSP_NEEDED |
10fa2066 RS |
375 | YYLTYPE *yyls1 = yyls; |
376 | #endif | |
377 | ||
378 | /* Get the current used size of the three stacks, in elements. */ | |
379 | int size = yyssp - yyss + 1; | |
380 | ||
381 | #ifdef yyoverflow | |
382 | /* Each stack pointer address is followed by the size of | |
383 | the data in use in that stack, in bytes. */ | |
5af1f549 | 384 | # if YYLSP_NEEDED |
be4bf877 RS |
385 | /* This used to be a conditional around just the two extra args, |
386 | but that might be undefined if yyoverflow is a macro. */ | |
bb10be54 AD |
387 | yyoverflow ("parser stack overflow", |
388 | &yyss1, size * sizeof (*yyssp), | |
389 | &yyvs1, size * sizeof (*yyvsp), | |
390 | &yyls1, size * sizeof (*yylsp), | |
391 | &yystacksize); | |
b07b484a | 392 | # else |
bb10be54 AD |
393 | yyoverflow ("parser stack overflow", |
394 | &yyss1, size * sizeof (*yyssp), | |
395 | &yyvs1, size * sizeof (*yyvsp), | |
396 | &yystacksize); | |
b07b484a | 397 | # endif |
10fa2066 RS |
398 | |
399 | yyss = yyss1; yyvs = yyvs1; | |
5af1f549 | 400 | # if YYLSP_NEEDED |
10fa2066 | 401 | yyls = yyls1; |
b07b484a | 402 | # endif |
10fa2066 RS |
403 | #else /* no yyoverflow */ |
404 | /* Extend the stack our own way. */ | |
405 | if (yystacksize >= YYMAXDEPTH) | |
406 | { | |
71da9eea | 407 | yyerror ("parser stack overflow"); |
70ddf897 RS |
408 | if (yyfree_stacks) |
409 | { | |
410 | free (yyss); | |
411 | free (yyvs); | |
5af1f549 | 412 | # if YYLSP_NEEDED |
70ddf897 | 413 | free (yyls); |
b07b484a | 414 | # endif |
70ddf897 | 415 | } |
10fa2066 RS |
416 | return 2; |
417 | } | |
418 | yystacksize *= 2; | |
419 | if (yystacksize > YYMAXDEPTH) | |
420 | yystacksize = YYMAXDEPTH; | |
b07b484a | 421 | # ifndef YYSTACK_USE_ALLOCA |
70ddf897 | 422 | yyfree_stacks = 1; |
b07b484a | 423 | # endif |
70ddf897 | 424 | yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); |
5e02f2ad RS |
425 | __yy_memcpy ((char *)yyss, (char *)yyss1, |
426 | size * (unsigned int) sizeof (*yyssp)); | |
70ddf897 | 427 | yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); |
5e02f2ad RS |
428 | __yy_memcpy ((char *)yyvs, (char *)yyvs1, |
429 | size * (unsigned int) sizeof (*yyvsp)); | |
5af1f549 | 430 | # if YYLSP_NEEDED |
70ddf897 | 431 | yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); |
5e02f2ad RS |
432 | __yy_memcpy ((char *)yyls, (char *)yyls1, |
433 | size * (unsigned int) sizeof (*yylsp)); | |
b07b484a | 434 | # endif |
10fa2066 RS |
435 | #endif /* no yyoverflow */ |
436 | ||
437 | yyssp = yyss + size - 1; | |
438 | yyvsp = yyvs + size - 1; | |
5af1f549 | 439 | #if YYLSP_NEEDED |
10fa2066 RS |
440 | yylsp = yyls + size - 1; |
441 | #endif | |
442 | ||
5a35a6cb | 443 | YYDPRINTF ((stderr, "Stack size increased to %d\n", yystacksize)); |
10fa2066 RS |
444 | |
445 | if (yyssp >= yyss + yystacksize - 1) | |
446 | YYABORT; | |
447 | } | |
448 | ||
5a35a6cb | 449 | YYDPRINTF ((stderr, "Entering state %d\n", yystate)); |
10fa2066 RS |
450 | |
451 | goto yybackup; | |
71da9eea AD |
452 | |
453 | ||
454 | /*-----------. | |
455 | | yybackup. | | |
456 | `-----------*/ | |
457 | yybackup: | |
10fa2066 RS |
458 | |
459 | /* Do appropriate processing given the current state. */ | |
460 | /* Read a lookahead token if we need one and don't already have one. */ | |
461 | /* yyresume: */ | |
462 | ||
463 | /* First try to decide what to do without reference to lookahead token. */ | |
464 | ||
465 | yyn = yypact[yystate]; | |
466 | if (yyn == YYFLAG) | |
467 | goto yydefault; | |
468 | ||
469 | /* Not known => get a lookahead token if don't already have one. */ | |
470 | ||
471 | /* yychar is either YYEMPTY or YYEOF | |
472 | or a valid token in external form. */ | |
473 | ||
474 | if (yychar == YYEMPTY) | |
475 | { | |
5a35a6cb | 476 | YYDPRINTF ((stderr, "Reading a token: ")); |
10fa2066 RS |
477 | yychar = YYLEX; |
478 | } | |
479 | ||
480 | /* Convert token to internal form (in yychar1) for indexing tables with */ | |
481 | ||
482 | if (yychar <= 0) /* This means end of input. */ | |
483 | { | |
484 | yychar1 = 0; | |
485 | yychar = YYEOF; /* Don't call YYLEX any more */ | |
486 | ||
5a35a6cb | 487 | YYDPRINTF ((stderr, "Now at end of input.\n")); |
10fa2066 RS |
488 | } |
489 | else | |
490 | { | |
71da9eea | 491 | yychar1 = YYTRANSLATE (yychar); |
10fa2066 | 492 | |
0d533154 AD |
493 | #if YYDEBUG |
494 | /* We have to keep this `#if YYDEBUG', since we use variables | |
495 | which are defined only if `YYDEBUG' is set. */ | |
10fa2066 RS |
496 | if (yydebug) |
497 | { | |
498 | fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); | |
0d533154 AD |
499 | /* Give the individual parser a way to print the precise |
500 | meaning of a token, for further debugging info. */ | |
b07b484a | 501 | # ifdef YYPRINT |
10fa2066 | 502 | YYPRINT (stderr, yychar, yylval); |
b07b484a | 503 | # endif |
10fa2066 RS |
504 | fprintf (stderr, ")\n"); |
505 | } | |
0d533154 | 506 | #endif |
10fa2066 RS |
507 | } |
508 | ||
509 | yyn += yychar1; | |
510 | if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) | |
511 | goto yydefault; | |
512 | ||
513 | yyn = yytable[yyn]; | |
514 | ||
515 | /* yyn is what to do for this token type in this state. | |
516 | Negative => reduce, -yyn is rule number. | |
517 | Positive => shift, yyn is new state. | |
518 | New state is final state => don't bother to shift, | |
519 | just return success. | |
520 | 0, or most negative number => error. */ | |
521 | ||
522 | if (yyn < 0) | |
523 | { | |
524 | if (yyn == YYFLAG) | |
525 | goto yyerrlab; | |
526 | yyn = -yyn; | |
527 | goto yyreduce; | |
528 | } | |
529 | else if (yyn == 0) | |
530 | goto yyerrlab; | |
531 | ||
532 | if (yyn == YYFINAL) | |
533 | YYACCEPT; | |
534 | ||
535 | /* Shift the lookahead token. */ | |
5a35a6cb | 536 | YYDPRINTF ((stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1])); |
10fa2066 RS |
537 | |
538 | /* Discard the token being shifted unless it is eof. */ | |
539 | if (yychar != YYEOF) | |
540 | yychar = YYEMPTY; | |
541 | ||
542 | *++yyvsp = yylval; | |
5af1f549 | 543 | #if YYLSP_NEEDED |
10fa2066 RS |
544 | *++yylsp = yylloc; |
545 | #endif | |
546 | ||
71da9eea AD |
547 | /* Count tokens shifted since error; after three, turn off error |
548 | status. */ | |
549 | if (yyerrstatus) | |
550 | yyerrstatus--; | |
10fa2066 RS |
551 | |
552 | yystate = yyn; | |
553 | goto yynewstate; | |
554 | ||
10fa2066 | 555 | |
71da9eea AD |
556 | /*-----------------------------------------------------------. |
557 | | yydefault -- do the default action for the current state. | | |
558 | `-----------------------------------------------------------*/ | |
559 | yydefault: | |
10fa2066 RS |
560 | yyn = yydefact[yystate]; |
561 | if (yyn == 0) | |
562 | goto yyerrlab; | |
71da9eea | 563 | goto yyreduce; |
10fa2066 | 564 | |
71da9eea AD |
565 | |
566 | /*-----------------------------. | |
567 | | yyreduce -- Do a reduction. | | |
568 | `-----------------------------*/ | |
10fa2066 | 569 | yyreduce: |
71da9eea | 570 | /* yyn is the number of a rule to reduce with. */ |
10fa2066 | 571 | yylen = yyr2[yyn]; |
da9abf43 AD |
572 | |
573 | /* If YYLEN is nonzero, implement the default value of the action: | |
574 | `{dollar}{dollar} = {dollar}1'. | |
575 | ||
576 | Otherwise, the following line sets YYVAL to the semantic value of | |
577 | the lookahead token. This behavior is undocumented and Bison | |
578 | users should not rely upon it. Assigning to YYVAL | |
579 | unconditionally makes the parser a bit smaller, and it avoids a | |
580 | GCC warning that YYVAL may be used uninitialized. */ | |
581 | yyval = yyvsp[1-yylen]; | |
5af1f549 | 582 | #if YYLSP_NEEDED |
6666f98f AD |
583 | /* Implement default location. If the rhs is empty, extend YYLOC to |
584 | YYLLOC, which corresponds to the current token, otherwise | |
585 | implement `@{dollar} = Starts at @1, ends at @YYLEN'. */ | |
fb75fa82 | 586 | if (yylen > 0) |
6666f98f AD |
587 | { |
588 | yyloc = yylsp[1-yylen]; | |
589 | yyloc.last_line = yylsp[0].last_line; | |
590 | yyloc.last_column = yylsp[0].last_column; | |
591 | } | |
592 | else | |
593 | { | |
594 | yyloc.last_line = yylsp[0].last_line; | |
595 | yyloc.last_column = yylsp[0].last_column; | |
596 | yyloc.text = 0; | |
597 | } | |
598 | #endif | |
10fa2066 | 599 | |
0de741ca AD |
600 | #if YYDEBUG |
601 | /* We have to keep this `#if YYDEBUG', since we use variables which | |
602 | are defined only if `YYDEBUG' is set. */ | |
10fa2066 RS |
603 | if (yydebug) |
604 | { | |
605 | int i; | |
606 | ||
607 | fprintf (stderr, "Reducing via rule %d (line %d), ", | |
608 | yyn, yyrline[yyn]); | |
609 | ||
610 | /* Print the symbols being reduced, and their result. */ | |
611 | for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) | |
612 | fprintf (stderr, "%s ", yytname[yyrhs[i]]); | |
613 | fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); | |
614 | } | |
615 | #endif | |
71da9eea | 616 | $ /* The action file replaces this line marked with this dollarsign. */ |
dc08c1d5 | 617 | #line |
10fa2066 RS |
618 | \f |
619 | yyvsp -= yylen; | |
620 | yyssp -= yylen; | |
5af1f549 | 621 | #if YYLSP_NEEDED |
10fa2066 RS |
622 | yylsp -= yylen; |
623 | #endif | |
624 | ||
5a35a6cb | 625 | #if YYDEBUG |
10fa2066 RS |
626 | if (yydebug) |
627 | { | |
628 | short *ssp1 = yyss - 1; | |
629 | fprintf (stderr, "state stack now"); | |
630 | while (ssp1 != yyssp) | |
631 | fprintf (stderr, " %d", *++ssp1); | |
632 | fprintf (stderr, "\n"); | |
633 | } | |
5a35a6cb | 634 | #endif |
10fa2066 RS |
635 | |
636 | *++yyvsp = yyval; | |
5af1f549 | 637 | #if YYLSP_NEEDED |
6666f98f | 638 | *++yylsp = yyloc; |
10fa2066 RS |
639 | #endif |
640 | ||
41aca2e0 AD |
641 | /* Now `shift' the result of the reduction. Determine what state |
642 | that goes to, based on the state we popped back to and the rule | |
643 | number reduced by. */ | |
10fa2066 RS |
644 | |
645 | yyn = yyr1[yyn]; | |
646 | ||
647 | yystate = yypgoto[yyn - YYNTBASE] + *yyssp; | |
648 | if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) | |
649 | yystate = yytable[yystate]; | |
650 | else | |
651 | yystate = yydefgoto[yyn - YYNTBASE]; | |
652 | ||
653 | goto yynewstate; | |
654 | ||
10fa2066 | 655 | |
71da9eea AD |
656 | /*------------------------------------. |
657 | | yyerrlab -- here on detecting error | | |
658 | `------------------------------------*/ | |
659 | yyerrlab: | |
660 | /* If not already recovering from an error, report this error. */ | |
661 | if (!yyerrstatus) | |
10fa2066 RS |
662 | { |
663 | ++yynerrs; | |
664 | ||
665 | #ifdef YYERROR_VERBOSE | |
666 | yyn = yypact[yystate]; | |
667 | ||
668 | if (yyn > YYFLAG && yyn < YYLAST) | |
669 | { | |
670 | int size = 0; | |
671 | char *msg; | |
672 | int x, count; | |
673 | ||
674 | count = 0; | |
675 | /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ | |
676 | for (x = (yyn < 0 ? -yyn : 0); | |
71da9eea | 677 | x < (sizeof (yytname) / sizeof (char *)); x++) |
10fa2066 | 678 | if (yycheck[x + yyn] == x) |
71da9eea | 679 | size += strlen (yytname[x]) + 15, count++; |
75bbe78d AD |
680 | size += strlen ("parse error, unexpected `") + 1; |
681 | size += strlen (yytname[YYTRANSLATE (yychar)]); | |
682 | msg = (char *) malloc (size); | |
10fa2066 RS |
683 | if (msg != 0) |
684 | { | |
75bbe78d AD |
685 | strcpy (msg, "parse error, unexpected `"); |
686 | strcat (msg, yytname[YYTRANSLATE (yychar)]); | |
687 | strcat (msg, "'"); | |
10fa2066 RS |
688 | |
689 | if (count < 5) | |
690 | { | |
691 | count = 0; | |
692 | for (x = (yyn < 0 ? -yyn : 0); | |
71da9eea | 693 | x < (sizeof (yytname) / sizeof (char *)); x++) |
10fa2066 RS |
694 | if (yycheck[x + yyn] == x) |
695 | { | |
75bbe78d AD |
696 | strcat (msg, count == 0 ? ", expecting `" : " or `"); |
697 | strcat (msg, yytname[x]); | |
698 | strcat (msg, "'"); | |
10fa2066 RS |
699 | count++; |
700 | } | |
701 | } | |
75bbe78d AD |
702 | yyerror (msg); |
703 | free (msg); | |
10fa2066 RS |
704 | } |
705 | else | |
706 | yyerror ("parse error; also virtual memory exceeded"); | |
707 | } | |
708 | else | |
709 | #endif /* YYERROR_VERBOSE */ | |
75bbe78d | 710 | yyerror ("parse error"); |
10fa2066 | 711 | } |
10fa2066 | 712 | goto yyerrlab1; |
10fa2066 | 713 | |
71da9eea AD |
714 | |
715 | /*--------------------------------------------------. | |
716 | | yyerrlab1 -- error raised explicitly by an action | | |
717 | `--------------------------------------------------*/ | |
718 | yyerrlab1: | |
10fa2066 RS |
719 | if (yyerrstatus == 3) |
720 | { | |
71da9eea AD |
721 | /* If just tried and failed to reuse lookahead token after an |
722 | error, discard it. */ | |
10fa2066 RS |
723 | |
724 | /* return failure if at end of input */ | |
725 | if (yychar == YYEOF) | |
726 | YYABORT; | |
5a35a6cb AD |
727 | YYDPRINTF ((stderr, "Discarding token %d (%s).\n", |
728 | yychar, yytname[yychar1])); | |
10fa2066 RS |
729 | yychar = YYEMPTY; |
730 | } | |
731 | ||
71da9eea AD |
732 | /* Else will try to reuse lookahead token after shifting the error |
733 | token. */ | |
10fa2066 RS |
734 | |
735 | yyerrstatus = 3; /* Each real token shifted decrements this */ | |
736 | ||
737 | goto yyerrhandle; | |
738 | ||
10fa2066 | 739 | |
71da9eea AD |
740 | /*-------------------------------------------------------------------. |
741 | | yyerrdefault -- current state does not do anything special for the | | |
742 | | error token. | | |
743 | `-------------------------------------------------------------------*/ | |
744 | yyerrdefault: | |
10fa2066 RS |
745 | #if 0 |
746 | /* This is wrong; only states that explicitly want error tokens | |
747 | should shift them. */ | |
71da9eea AD |
748 | |
749 | /* If its default is to accept any token, ok. Otherwise pop it. */ | |
750 | yyn = yydefact[yystate]; | |
751 | if (yyn) | |
752 | goto yydefault; | |
10fa2066 RS |
753 | #endif |
754 | ||
10fa2066 | 755 | |
71da9eea AD |
756 | /*---------------------------------------------------------------. |
757 | | yyerrpop -- pop the current state because it cannot handle the | | |
758 | | error token | | |
759 | `---------------------------------------------------------------*/ | |
760 | yyerrpop: | |
761 | if (yyssp == yyss) | |
762 | YYABORT; | |
10fa2066 RS |
763 | yyvsp--; |
764 | yystate = *--yyssp; | |
5af1f549 | 765 | #if YYLSP_NEEDED |
10fa2066 RS |
766 | yylsp--; |
767 | #endif | |
768 | ||
5a35a6cb | 769 | #if YYDEBUG |
10fa2066 RS |
770 | if (yydebug) |
771 | { | |
772 | short *ssp1 = yyss - 1; | |
773 | fprintf (stderr, "Error: state stack now"); | |
774 | while (ssp1 != yyssp) | |
775 | fprintf (stderr, " %d", *++ssp1); | |
776 | fprintf (stderr, "\n"); | |
777 | } | |
5a35a6cb | 778 | #endif |
10fa2066 | 779 | |
71da9eea AD |
780 | /*--------------. |
781 | | yyerrhandle. | | |
782 | `--------------*/ | |
783 | yyerrhandle: | |
10fa2066 RS |
784 | yyn = yypact[yystate]; |
785 | if (yyn == YYFLAG) | |
786 | goto yyerrdefault; | |
787 | ||
788 | yyn += YYTERROR; | |
789 | if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) | |
790 | goto yyerrdefault; | |
791 | ||
792 | yyn = yytable[yyn]; | |
793 | if (yyn < 0) | |
794 | { | |
795 | if (yyn == YYFLAG) | |
796 | goto yyerrpop; | |
797 | yyn = -yyn; | |
798 | goto yyreduce; | |
799 | } | |
800 | else if (yyn == 0) | |
801 | goto yyerrpop; | |
802 | ||
803 | if (yyn == YYFINAL) | |
804 | YYACCEPT; | |
805 | ||
5a35a6cb | 806 | YYDPRINTF ((stderr, "Shifting error token, ")); |
10fa2066 RS |
807 | |
808 | *++yyvsp = yylval; | |
5af1f549 | 809 | #if YYLSP_NEEDED |
10fa2066 RS |
810 | *++yylsp = yylloc; |
811 | #endif | |
812 | ||
813 | yystate = yyn; | |
814 | goto yynewstate; | |
70ddf897 | 815 | |
71da9eea AD |
816 | |
817 | /*-------------------------------------. | |
818 | | yyacceptlab -- YYACCEPT comes here. | | |
819 | `-------------------------------------*/ | |
820 | yyacceptlab: | |
70ddf897 RS |
821 | if (yyfree_stacks) |
822 | { | |
823 | free (yyss); | |
824 | free (yyvs); | |
5af1f549 | 825 | #if YYLSP_NEEDED |
70ddf897 RS |
826 | free (yyls); |
827 | #endif | |
828 | } | |
829 | return 0; | |
830 | ||
71da9eea AD |
831 | |
832 | /*-----------------------------------. | |
833 | | yyabortlab -- YYABORT comes here. | | |
834 | `-----------------------------------*/ | |
835 | yyabortlab: | |
70ddf897 RS |
836 | if (yyfree_stacks) |
837 | { | |
838 | free (yyss); | |
839 | free (yyvs); | |
5af1f549 | 840 | #if YYLSP_NEEDED |
70ddf897 RS |
841 | free (yyls); |
842 | #endif | |
843 | } | |
844 | return 1; | |
10fa2066 | 845 | } |