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0de566d7 |
1 | /* perly.c |
2 | * |
3 | * Copyright (c) 2004 Larry Wall |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | * Note that this file was originally generated as an output from |
9 | * GNU bison version 1.875, but now the code is statically maintained |
10 | * and edited; the bits that are dependent on perly.y are now #included |
11 | * from the files perly.tab and perly.act. |
12 | * |
13 | * Here is an important copyright statement from the original, generated |
14 | * file: |
15 | * |
16 | * As a special exception, when this file is copied by Bison into a |
17 | * Bison output file, you may use that output file without |
18 | * restriction. This special exception was added by the Free |
19 | * Software Foundation in version 1.24 of Bison. |
20 | */ |
21 | |
22 | |
23 | /* allow stack size to grow effectively without limit */ |
24 | #define YYMAXDEPTH 10000000 |
25 | |
79072805 |
26 | #include "EXTERN.h" |
864dbfa3 |
27 | #define PERL_IN_PERLY_C |
79072805 |
28 | #include "perl.h" |
09bef843 |
29 | |
0de566d7 |
30 | typedef signed char yysigned_char; |
31 | |
32 | #ifdef DEBUGGING |
33 | # define YYDEBUG 1 |
93a17b20 |
34 | #else |
0de566d7 |
35 | # define YYDEBUG 0 |
93a17b20 |
36 | #endif |
09bef843 |
37 | |
0de566d7 |
38 | /* contains all the parser state tables; auto-generated from perly.y */ |
39 | #include "perly.tab" |
40 | |
41 | # define YYSIZE_T size_t |
42 | |
43 | #define yyerrok (yyerrstatus = 0) |
44 | #define yyclearin (yychar = YYEMPTY) |
45 | #define YYEMPTY (-2) |
46 | #define YYEOF 0 |
47 | |
48 | #define YYACCEPT goto yyacceptlab |
49 | #define YYABORT goto yyabortlab |
50 | #define YYERROR goto yyerrlab1 |
51 | |
52 | |
53 | /* Like YYERROR except do call yyerror. This remains here temporarily |
54 | to ease the transition to the new meaning of YYERROR, for GCC. |
55 | Once GCC version 2 has supplanted version 1, this can go. */ |
56 | |
57 | #define YYFAIL goto yyerrlab |
58 | |
59 | #define YYRECOVERING() (!!yyerrstatus) |
60 | |
61 | #define YYBACKUP(Token, Value) \ |
62 | do \ |
63 | if (yychar == YYEMPTY && yylen == 1) { \ |
64 | yychar = (Token); \ |
65 | yylval = (Value); \ |
66 | yytoken = YYTRANSLATE (yychar); \ |
67 | YYPOPSTACK; \ |
68 | goto yybackup; \ |
69 | } \ |
70 | else { \ |
71 | yyerror ("syntax error: cannot back up"); \ |
72 | YYERROR; \ |
73 | } \ |
74 | while (0) |
75 | |
76 | #define YYTERROR 1 |
77 | #define YYERRCODE 256 |
78 | |
79 | /* YYLEX -- calling `yylex' with the right arguments. */ |
80 | |
81 | # define YYLEX yylex_r (&yylval, &yychar) |
82 | |
83 | /* Enable debugging if requested. */ |
9388183f |
84 | #ifdef DEBUGGING |
0de566d7 |
85 | |
86 | # define yydebug (DEBUG_p_TEST) |
87 | |
88 | # define YYFPRINTF PerlIO_printf |
89 | |
90 | # define YYDPRINTF(Args) \ |
91 | do { \ |
92 | if (yydebug) \ |
93 | YYFPRINTF Args; \ |
94 | } while (0) |
95 | |
96 | # define YYDSYMPRINT(Args) \ |
97 | do { \ |
98 | if (yydebug) \ |
99 | yysymprint Args; \ |
100 | } while (0) |
101 | |
9388183f |
102 | # define YYDSYMPRINTF(Title, Token, Value) \ |
0de566d7 |
103 | do { \ |
104 | if (yydebug) { \ |
105 | YYFPRINTF (Perl_debug_log, "%s ", Title); \ |
9388183f |
106 | yysymprint (aTHX_ Perl_debug_log, Token, Value); \ |
0de566d7 |
107 | YYFPRINTF (Perl_debug_log, "\n"); \ |
108 | } \ |
109 | } while (0) |
110 | |
111 | /*--------------------------------. |
112 | | Print this symbol on YYOUTPUT. | |
113 | `--------------------------------*/ |
114 | |
115 | static void |
116 | yysymprint (pTHX_ PerlIO *yyoutput, int yytype, YYSTYPE *yyvaluep) |
117 | { |
118 | /* Pacify ``unused variable'' warnings. */ |
119 | (void) yyvaluep; |
120 | |
121 | if (yytype < YYNTOKENS) { |
122 | YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); |
123 | # ifdef YYPRINT |
124 | YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); |
9388183f |
125 | # else |
126 | YYFPRINTF (yyoutput, "0x%x", yyvaluep->ival); |
0de566d7 |
127 | # endif |
128 | } |
129 | else |
130 | YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); |
131 | |
132 | switch (yytype) { |
133 | default: |
134 | break; |
135 | } |
136 | YYFPRINTF (yyoutput, ")"); |
137 | } |
138 | |
139 | |
9388183f |
140 | /* yy_stack_print() |
141 | * print the top 8 items on the parse stack. The args have the same |
142 | * meanings as the local vars in yyparse() of the same name */ |
0de566d7 |
143 | |
144 | static void |
9388183f |
145 | yy_stack_print (pTHX_ short *yyss, short *yyssp, YYSTYPE *yyvs, char**yyns) |
0de566d7 |
146 | { |
9388183f |
147 | int i; |
148 | int start = 1; |
149 | int count = (int)(yyssp - yyss); |
150 | |
151 | if (count > 8) { |
152 | start = count - 8 + 1; |
153 | count = 8; |
154 | } |
155 | |
156 | PerlIO_printf(Perl_debug_log, "\nindex:"); |
157 | for (i=0; i < count; i++) |
158 | PerlIO_printf(Perl_debug_log, " %8d", start+i); |
159 | PerlIO_printf(Perl_debug_log, "\nstate:"); |
160 | for (i=0, yyss += start; i < count; i++, yyss++) |
161 | PerlIO_printf(Perl_debug_log, " %8d", *yyss); |
162 | PerlIO_printf(Perl_debug_log, "\ntoken:"); |
163 | for (i=0, yyns += start; i < count; i++, yyns++) |
164 | PerlIO_printf(Perl_debug_log, " %8.8s", *yyns); |
165 | PerlIO_printf(Perl_debug_log, "\nvalue:"); |
166 | for (i=0, yyvs += start; i < count; i++, yyvs++) |
167 | PerlIO_printf(Perl_debug_log, " %8x", yyvs->ival); |
168 | PerlIO_printf(Perl_debug_log, "\n\n"); |
0de566d7 |
169 | } |
170 | |
9388183f |
171 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) \ |
0de566d7 |
172 | do { \ |
9388183f |
173 | if (yydebug && DEBUG_v_TEST) \ |
174 | yy_stack_print (aTHX_ (yyss), (yyssp), (yyvs), (yyns)); \ |
0de566d7 |
175 | } while (0) |
176 | |
09bef843 |
177 | |
0de566d7 |
178 | /*------------------------------------------------. |
179 | | Report that the YYRULE is going to be reduced. | |
180 | `------------------------------------------------*/ |
181 | |
182 | static void |
183 | yy_reduce_print (pTHX_ int yyrule) |
184 | { |
185 | int yyi; |
186 | unsigned int yylineno = yyrline[yyrule]; |
187 | YYFPRINTF (Perl_debug_log, "Reducing stack by rule %d (line %u), ", |
188 | yyrule - 1, yylineno); |
189 | /* Print the symbols being reduced, and their result. */ |
190 | for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) |
191 | YYFPRINTF (Perl_debug_log, "%s ", yytname [yyrhs[yyi]]); |
192 | YYFPRINTF (Perl_debug_log, "-> %s\n", yytname [yyr1[yyrule]]); |
193 | } |
194 | |
195 | # define YY_REDUCE_PRINT(Rule) \ |
196 | do { \ |
197 | if (yydebug) \ |
198 | yy_reduce_print (aTHX_ Rule); \ |
199 | } while (0) |
200 | |
201 | #else /* !DEBUGGING */ |
202 | # define YYDPRINTF(Args) |
203 | # define YYDSYMPRINT(Args) |
9388183f |
204 | # define YYDSYMPRINTF(Title, Token, Value) |
205 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) |
0de566d7 |
206 | # define YY_REDUCE_PRINT(Rule) |
207 | #endif /* !DEBUGGING */ |
208 | |
209 | |
210 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
211 | #ifndef YYINITDEPTH |
212 | # define YYINITDEPTH 200 |
09bef843 |
213 | #endif |
09bef843 |
214 | |
0de566d7 |
215 | |
216 | #if YYERROR_VERBOSE |
217 | # ifndef yystrlen |
218 | # if defined (__GLIBC__) && defined (_STRING_H) |
219 | # define yystrlen strlen |
220 | # else |
221 | /* Return the length of YYSTR. */ |
222 | static YYSIZE_T |
223 | yystrlen (const char *yystr) |
224 | { |
225 | register const char *yys = yystr; |
226 | |
227 | while (*yys++ != '\0') |
228 | continue; |
229 | |
230 | return yys - yystr - 1; |
231 | } |
232 | # endif |
233 | # endif |
234 | |
235 | # ifndef yystpcpy |
236 | # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) |
237 | # define yystpcpy stpcpy |
238 | # else |
239 | /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in |
240 | YYDEST. */ |
241 | static char * |
242 | yystpcpy (pTHX_ char *yydest, const char *yysrc) |
243 | { |
244 | register char *yyd = yydest; |
245 | register const char *yys = yysrc; |
246 | |
247 | while ((*yyd++ = *yys++) != '\0') |
248 | continue; |
249 | |
250 | return yyd - 1; |
251 | } |
252 | # endif |
253 | # endif |
254 | |
255 | #endif /* !YYERROR_VERBOSE */ |
256 | |
257 | |
258 | /*-----------------------------------------------. |
259 | | Release the memory associated to this symbol. | |
260 | `-----------------------------------------------*/ |
261 | |
262 | static void |
263 | yydestruct (int yytype, YYSTYPE *yyvaluep) |
264 | { |
265 | /* Pacify ``unused variable'' warnings. */ |
266 | (void) yyvaluep; |
267 | |
268 | switch (yytype) { |
269 | default: |
270 | break; |
271 | } |
272 | } |
273 | |
274 | |
275 | |
276 | |
277 | /*----------. |
278 | | yyparse. | |
279 | `----------*/ |
280 | |
79072805 |
281 | int |
0de566d7 |
282 | Perl_yyparse (pTHX) |
79072805 |
283 | { |
0de566d7 |
284 | int yychar; /* The lookahead symbol. */ |
285 | YYSTYPE yylval; /* The semantic value of the lookahead symbol. */ |
286 | int yynerrs; /* Number of syntax errors so far. */ |
287 | register int yystate; |
288 | register int yyn; |
289 | int yyresult; |
290 | |
291 | /* Number of tokens to shift before error messages enabled. */ |
292 | int yyerrstatus; |
293 | /* Lookahead token as an internal (translated) token number. */ |
294 | int yytoken = 0; |
295 | |
296 | /* two stacks and their tools: |
297 | `yyss': related to states, |
298 | `yyvs': related to semantic values, |
299 | |
300 | Refer to the stacks thru separate pointers, to allow yyoverflow |
301 | to reallocate them elsewhere. */ |
302 | |
303 | /* The state stack. */ |
304 | short *yyss; |
93a17b20 |
305 | register short *yyssp; |
0de566d7 |
306 | |
307 | /* The semantic value stack. */ |
308 | YYSTYPE *yyvs; |
93a17b20 |
309 | register YYSTYPE *yyvsp; |
a0d0e21e |
310 | |
0de566d7 |
311 | /* for ease of re-allocation and automatic freeing, have two SVs whose |
312 | * SvPVX points to the stacks */ |
313 | SV *yyss_sv, *yyvs_sv; |
314 | |
9388183f |
315 | #ifdef DEBUGGING |
316 | /* maintain also a stack of token/rule names for debugging with -Dpv */ |
317 | char **yyns, **yynsp; |
318 | SV *yyns_sv; |
319 | # define YYPOPSTACK (yyvsp--, yyssp--, yynsp--) |
320 | #else |
321 | # define YYPOPSTACK (yyvsp--, yyssp--) |
322 | #endif |
323 | |
0de566d7 |
324 | |
325 | YYSIZE_T yystacksize = YYINITDEPTH; |
326 | |
327 | /* The variables used to return semantic value and location from the |
328 | action routines. */ |
329 | YYSTYPE yyval; |
330 | |
331 | |
332 | /* When reducing, the number of symbols on the RHS of the reduced |
333 | rule. */ |
334 | int yylen; |
335 | |
336 | YYDPRINTF ((Perl_debug_log, "Starting parse\n")); |
337 | |
f4dd75d9 |
338 | #ifdef USE_ITHREADS |
0de566d7 |
339 | /* XXX is this needed anymore? DAPM 13-Feb-04; |
340 | * if not, delete the correspinding LEAVE too */ |
341 | ENTER; /* force stack free before we return */ |
93a17b20 |
342 | #endif |
9388183f |
343 | yyss_sv = NEWSV(73, YYINITDEPTH * sizeof(short)); |
344 | yyvs_sv = NEWSV(73, YYINITDEPTH * sizeof(YYSTYPE)); |
0de566d7 |
345 | SAVEFREESV(yyss_sv); |
346 | SAVEFREESV(yyvs_sv); |
347 | yyss = (short *) SvPVX(yyss_sv); |
348 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); |
9388183f |
349 | /* note that elements zero of yyvs and yyns are not used */ |
350 | yyssp = yyss; |
351 | yyvsp = yyvs; |
352 | #ifdef DEBUGGING |
353 | yyns_sv = NEWSV(73, YYINITDEPTH * sizeof(char *)); |
354 | SAVEFREESV(yyns_sv); |
355 | yyns = (char **) SvPVX(yyns_sv); |
356 | yynsp = yyns; |
357 | #endif |
79072805 |
358 | |
0de566d7 |
359 | yystate = 0; |
360 | yyerrstatus = 0; |
93a17b20 |
361 | yynerrs = 0; |
0de566d7 |
362 | yychar = YYEMPTY; /* Cause a token to be read. */ |
363 | |
79072805 |
364 | |
9388183f |
365 | |
366 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
0de566d7 |
367 | |
368 | goto yysetstate; |
369 | |
370 | /*------------------------------------------------------------. |
371 | | yynewstate -- Push a new state, which is found in yystate. | |
372 | `------------------------------------------------------------*/ |
373 | yynewstate: |
374 | /* In all cases, when you get here, the value and location stacks |
375 | have just been pushed. so pushing a state here evens the stacks. |
376 | */ |
377 | yyssp++; |
378 | |
379 | yysetstate: |
380 | *yyssp = yystate; |
381 | |
382 | if (yyss + yystacksize - 1 <= yyssp) { |
383 | /* Get the current used size of the three stacks, in elements. */ |
384 | YYSIZE_T yysize = yyssp - yyss + 1; |
385 | |
386 | /* Extend the stack our own way. */ |
387 | if (YYMAXDEPTH <= yystacksize) |
388 | goto yyoverflowlab; |
389 | yystacksize *= 2; |
390 | if (YYMAXDEPTH < yystacksize) |
391 | yystacksize = YYMAXDEPTH; |
392 | |
393 | SvGROW(yyss_sv, yystacksize * sizeof(short)); |
394 | SvGROW(yyvs_sv, yystacksize * sizeof(YYSTYPE)); |
395 | yyss = (short *) SvPVX(yyss_sv); |
396 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); |
9388183f |
397 | #ifdef DEBUGGING |
398 | SvGROW(yyns_sv, yystacksize * sizeof(char *)); |
399 | yyns = (char **) SvPVX(yyns_sv); |
400 | if (! yyns) |
401 | goto yyoverflowlab; |
402 | yynsp = yyns + yysize - 1; |
403 | #endif |
0de566d7 |
404 | if (!yyss || ! yyvs) |
405 | goto yyoverflowlab; |
406 | |
407 | yyssp = yyss + yysize - 1; |
408 | yyvsp = yyvs + yysize - 1; |
409 | |
410 | |
411 | YYDPRINTF ((Perl_debug_log, "Stack size increased to %lu\n", |
412 | (unsigned long int) yystacksize)); |
413 | |
414 | if (yyss + yystacksize - 1 <= yyssp) |
415 | YYABORT; |
93a17b20 |
416 | } |
0de566d7 |
417 | |
0de566d7 |
418 | goto yybackup; |
419 | |
420 | /*-----------. |
421 | | yybackup. | |
422 | `-----------*/ |
423 | yybackup: |
424 | |
425 | /* Do appropriate processing given the current state. */ |
426 | /* Read a lookahead token if we need one and don't already have one. */ |
427 | /* yyresume: */ |
428 | |
429 | /* First try to decide what to do without reference to lookahead token. */ |
430 | |
431 | yyn = yypact[yystate]; |
432 | if (yyn == YYPACT_NINF) |
433 | goto yydefault; |
434 | |
435 | /* Not known => get a lookahead token if don't already have one. */ |
436 | |
437 | /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ |
438 | if (yychar == YYEMPTY) { |
439 | YYDPRINTF ((Perl_debug_log, "Reading a token: ")); |
440 | yychar = YYLEX; |
441 | } |
442 | |
443 | if (yychar <= YYEOF) { |
444 | yychar = yytoken = YYEOF; |
445 | YYDPRINTF ((Perl_debug_log, "Now at end of input.\n")); |
93a17b20 |
446 | } |
0de566d7 |
447 | else { |
448 | yytoken = YYTRANSLATE (yychar); |
9388183f |
449 | YYDSYMPRINTF ("Next token is", yytoken, &yylval); |
93a17b20 |
450 | } |
771df094 |
451 | |
0de566d7 |
452 | /* If the proper action on seeing token YYTOKEN is to reduce or to |
453 | detect an error, take that action. */ |
454 | yyn += yytoken; |
455 | if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) |
456 | goto yydefault; |
457 | yyn = yytable[yyn]; |
458 | if (yyn <= 0) { |
459 | if (yyn == 0 || yyn == YYTABLE_NINF) |
460 | goto yyerrlab; |
461 | yyn = -yyn; |
462 | goto yyreduce; |
463 | } |
7b57b0ea |
464 | |
0de566d7 |
465 | if (yyn == YYFINAL) |
466 | YYACCEPT; |
771df094 |
467 | |
0de566d7 |
468 | /* Shift the lookahead token. */ |
469 | YYDPRINTF ((Perl_debug_log, "Shifting token %s, ", yytname[yytoken])); |
470 | |
471 | /* Discard the token being shifted unless it is eof. */ |
472 | if (yychar != YYEOF) |
473 | yychar = YYEMPTY; |
474 | |
475 | *++yyvsp = yylval; |
9388183f |
476 | #ifdef DEBUGGING |
477 | *++yynsp = (char *)(yytname[yytoken]); |
478 | #endif |
0de566d7 |
479 | |
480 | |
481 | /* Count tokens shifted since error; after three, turn off error |
482 | status. */ |
483 | if (yyerrstatus) |
484 | yyerrstatus--; |
485 | |
486 | yystate = yyn; |
9388183f |
487 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
488 | |
0de566d7 |
489 | goto yynewstate; |
490 | |
491 | |
492 | /*-----------------------------------------------------------. |
493 | | yydefault -- do the default action for the current state. | |
494 | `-----------------------------------------------------------*/ |
495 | yydefault: |
496 | yyn = yydefact[yystate]; |
497 | if (yyn == 0) |
498 | goto yyerrlab; |
499 | goto yyreduce; |
500 | |
501 | |
502 | /*-----------------------------. |
503 | | yyreduce -- Do a reduction. | |
504 | `-----------------------------*/ |
505 | yyreduce: |
506 | /* yyn is the number of a rule to reduce with. */ |
507 | yylen = yyr2[yyn]; |
508 | |
509 | /* If YYLEN is nonzero, implement the default value of the action: |
510 | `$$ = $1'. |
511 | |
512 | Otherwise, the following line sets YYVAL to garbage. |
513 | This behavior is undocumented and Bison |
514 | users should not rely upon it. Assigning to YYVAL |
515 | unconditionally makes the parser a bit smaller, and it avoids a |
516 | GCC warning that YYVAL may be used uninitialized. */ |
517 | yyval = yyvsp[1-yylen]; |
518 | |
519 | |
520 | YY_REDUCE_PRINT (yyn); |
521 | switch (yyn) { |
522 | |
523 | /* contains all the rule actions; auto-generated from perly.y */ |
524 | |
525 | #define dep() deprecate("\"do\" to call subroutines") |
526 | #include "perly.act" |
7b57b0ea |
527 | |
93a17b20 |
528 | } |
0de566d7 |
529 | |
530 | yyvsp -= yylen; |
531 | yyssp -= yylen; |
9388183f |
532 | #ifdef DEBUGGING |
533 | yynsp -= yylen; |
534 | #endif |
0de566d7 |
535 | |
0de566d7 |
536 | |
537 | *++yyvsp = yyval; |
9388183f |
538 | #ifdef DEBUGGING |
539 | *++yynsp = (char *)(yytname [yyr1[yyn]]); |
540 | #endif |
0de566d7 |
541 | |
542 | /* Now `shift' the result of the reduction. Determine what state |
543 | that goes to, based on the state we popped back to and the rule |
544 | number reduced by. */ |
545 | |
546 | yyn = yyr1[yyn]; |
547 | |
548 | yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; |
549 | if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) |
550 | yystate = yytable[yystate]; |
93a17b20 |
551 | else |
0de566d7 |
552 | yystate = yydefgoto[yyn - YYNTOKENS]; |
553 | |
9388183f |
554 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
555 | |
556 | #ifdef DEBUGGING |
557 | /* tmp push yystate for stack print; this is normally pushed later in |
558 | * yynewstate */ |
559 | yyssp++; |
560 | *yyssp = yystate; |
561 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
562 | yyssp--; |
563 | #endif |
564 | |
0de566d7 |
565 | goto yynewstate; |
566 | |
567 | |
568 | /*------------------------------------. |
569 | | yyerrlab -- here on detecting error | |
570 | `------------------------------------*/ |
571 | yyerrlab: |
572 | /* If not already recovering from an error, report this error. */ |
573 | if (!yyerrstatus) { |
574 | ++yynerrs; |
575 | #if YYERROR_VERBOSE |
576 | yyn = yypact[yystate]; |
577 | |
578 | if (YYPACT_NINF < yyn && yyn < YYLAST) { |
579 | YYSIZE_T yysize = 0; |
580 | int yytype = YYTRANSLATE (yychar); |
581 | char *yymsg; |
582 | int yyx, yycount; |
583 | |
584 | yycount = 0; |
585 | /* Start YYX at -YYN if negative to avoid negative indexes in |
586 | YYCHECK. */ |
587 | for (yyx = yyn < 0 ? -yyn : 0; |
588 | yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) |
589 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) |
590 | yysize += yystrlen (yytname[yyx]) + 15, yycount++; |
591 | yysize += yystrlen ("syntax error, unexpected ") + 1; |
592 | yysize += yystrlen (yytname[yytype]); |
593 | New(yymsg, yysize, char *); |
594 | if (yymsg != 0) { |
595 | char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); |
596 | yyp = yystpcpy (yyp, yytname[yytype]); |
597 | |
598 | if (yycount < 5) { |
599 | yycount = 0; |
600 | for (yyx = yyn < 0 ? -yyn : 0; |
601 | yyx < (int) (sizeof (yytname) / sizeof (char *)); |
602 | yyx++) |
603 | { |
604 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { |
605 | const char *yyq = ! yycount ? |
606 | ", expecting " : " or "; |
607 | yyp = yystpcpy (yyp, yyq); |
608 | yyp = yystpcpy (yyp, yytname[yyx]); |
609 | yycount++; |
610 | } |
611 | } |
ecb2f335 |
612 | } |
0de566d7 |
613 | yyerror (yymsg); |
614 | YYSTACK_FREE (yymsg); |
615 | } |
616 | else |
617 | yyerror ("syntax error; also virtual memory exhausted"); |
618 | } |
619 | else |
620 | #endif /* YYERROR_VERBOSE */ |
621 | yyerror ("syntax error"); |
93a17b20 |
622 | } |
0de566d7 |
623 | |
624 | |
625 | if (yyerrstatus == 3) { |
626 | /* If just tried and failed to reuse lookahead token after an |
627 | error, discard it. */ |
628 | |
629 | /* Return failure if at end of input. */ |
630 | if (yychar == YYEOF) { |
631 | /* Pop the error token. */ |
632 | YYPOPSTACK; |
633 | /* Pop the rest of the stack. */ |
634 | while (yyss < yyssp) { |
9388183f |
635 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0de566d7 |
636 | yydestruct (yystos[*yyssp], yyvsp); |
637 | YYPOPSTACK; |
638 | } |
639 | YYABORT; |
640 | } |
641 | |
9388183f |
642 | YYDSYMPRINTF ("Error: discarding", yytoken, &yylval); |
0de566d7 |
643 | yydestruct (yytoken, &yylval); |
644 | yychar = YYEMPTY; |
645 | |
93a17b20 |
646 | } |
0de566d7 |
647 | |
648 | /* Else will try to reuse lookahead token after shifting the error |
649 | token. */ |
650 | goto yyerrlab1; |
651 | |
652 | |
653 | /*----------------------------------------------------. |
654 | | yyerrlab1 -- error raised explicitly by an action. | |
655 | `----------------------------------------------------*/ |
656 | yyerrlab1: |
657 | yyerrstatus = 3; /* Each real token shifted decrements this. */ |
658 | |
659 | for (;;) { |
660 | yyn = yypact[yystate]; |
661 | if (yyn != YYPACT_NINF) { |
662 | yyn += YYTERROR; |
663 | if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { |
664 | yyn = yytable[yyn]; |
665 | if (0 < yyn) |
666 | break; |
667 | } |
668 | } |
669 | |
670 | /* Pop the current state because it cannot handle the error token. */ |
671 | if (yyssp == yyss) |
672 | YYABORT; |
673 | |
9388183f |
674 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0de566d7 |
675 | yydestruct (yystos[yystate], yyvsp); |
676 | yyvsp--; |
9388183f |
677 | #ifdef DEBUGGING |
678 | yynsp--; |
679 | #endif |
0de566d7 |
680 | yystate = *--yyssp; |
681 | |
9388183f |
682 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
93a17b20 |
683 | } |
0de566d7 |
684 | |
685 | if (yyn == YYFINAL) |
686 | YYACCEPT; |
687 | |
688 | YYDPRINTF ((Perl_debug_log, "Shifting error token, ")); |
689 | |
690 | *++yyvsp = yylval; |
9388183f |
691 | #ifdef DEBUGGING |
692 | *++yynsp ="<err>"; |
693 | #endif |
0de566d7 |
694 | |
695 | yystate = yyn; |
9388183f |
696 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
697 | |
0de566d7 |
698 | goto yynewstate; |
699 | |
700 | |
701 | /*-------------------------------------. |
702 | | yyacceptlab -- YYACCEPT comes here. | |
703 | `-------------------------------------*/ |
704 | yyacceptlab: |
705 | yyresult = 0; |
706 | goto yyreturn; |
707 | |
708 | /*-----------------------------------. |
709 | | yyabortlab -- YYABORT comes here. | |
710 | `-----------------------------------*/ |
711 | yyabortlab: |
712 | yyresult = 1; |
713 | goto yyreturn; |
714 | |
715 | /*----------------------------------------------. |
716 | | yyoverflowlab -- parser overflow comes here. | |
717 | `----------------------------------------------*/ |
718 | yyoverflowlab: |
719 | yyerror ("parser stack overflow"); |
720 | yyresult = 2; |
721 | /* Fall through. */ |
722 | |
723 | yyreturn: |
724 | |
f4dd75d9 |
725 | #ifdef USE_ITHREADS |
0de566d7 |
726 | LEAVE; /* force stack free before we return */ |
f4dd75d9 |
727 | #endif |
e1f15930 |
728 | |
0de566d7 |
729 | return yyresult; |
e1f15930 |
730 | } |