Commit | Line | Data |
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0de566d7 DM |
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 DM |
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 DM |
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 | ||
0de566d7 | 79 | /* Enable debugging if requested. */ |
9388183f | 80 | #ifdef DEBUGGING |
0de566d7 DM |
81 | |
82 | # define yydebug (DEBUG_p_TEST) | |
83 | ||
84 | # define YYFPRINTF PerlIO_printf | |
85 | ||
86 | # define YYDPRINTF(Args) \ | |
87 | do { \ | |
88 | if (yydebug) \ | |
89 | YYFPRINTF Args; \ | |
90 | } while (0) | |
91 | ||
92 | # define YYDSYMPRINT(Args) \ | |
93 | do { \ | |
94 | if (yydebug) \ | |
95 | yysymprint Args; \ | |
96 | } while (0) | |
97 | ||
9388183f | 98 | # define YYDSYMPRINTF(Title, Token, Value) \ |
0de566d7 DM |
99 | do { \ |
100 | if (yydebug) { \ | |
101 | YYFPRINTF (Perl_debug_log, "%s ", Title); \ | |
9388183f | 102 | yysymprint (aTHX_ Perl_debug_log, Token, Value); \ |
0de566d7 DM |
103 | YYFPRINTF (Perl_debug_log, "\n"); \ |
104 | } \ | |
105 | } while (0) | |
106 | ||
107 | /*--------------------------------. | |
108 | | Print this symbol on YYOUTPUT. | | |
109 | `--------------------------------*/ | |
110 | ||
111 | static void | |
df35152e | 112 | yysymprint (pTHX_ PerlIO *yyoutput, int yytype, const YYSTYPE *yyvaluep) |
0de566d7 | 113 | { |
0de566d7 DM |
114 | if (yytype < YYNTOKENS) { |
115 | YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); | |
116 | # ifdef YYPRINT | |
117 | YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); | |
9388183f | 118 | # else |
e4584336 | 119 | YYFPRINTF (yyoutput, "0x%"UVxf, (UV)yyvaluep->ival); |
0de566d7 DM |
120 | # endif |
121 | } | |
122 | else | |
123 | YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); | |
124 | ||
0de566d7 DM |
125 | YYFPRINTF (yyoutput, ")"); |
126 | } | |
127 | ||
128 | ||
9388183f CB |
129 | /* yy_stack_print() |
130 | * print the top 8 items on the parse stack. The args have the same | |
131 | * meanings as the local vars in yyparse() of the same name */ | |
0de566d7 DM |
132 | |
133 | static void | |
df35152e | 134 | yy_stack_print (pTHX_ const short *yyss, const short *yyssp, const YYSTYPE *yyvs, const char**yyns) |
0de566d7 | 135 | { |
9388183f CB |
136 | int i; |
137 | int start = 1; | |
138 | int count = (int)(yyssp - yyss); | |
139 | ||
140 | if (count > 8) { | |
141 | start = count - 8 + 1; | |
142 | count = 8; | |
143 | } | |
144 | ||
145 | PerlIO_printf(Perl_debug_log, "\nindex:"); | |
146 | for (i=0; i < count; i++) | |
147 | PerlIO_printf(Perl_debug_log, " %8d", start+i); | |
148 | PerlIO_printf(Perl_debug_log, "\nstate:"); | |
149 | for (i=0, yyss += start; i < count; i++, yyss++) | |
150 | PerlIO_printf(Perl_debug_log, " %8d", *yyss); | |
151 | PerlIO_printf(Perl_debug_log, "\ntoken:"); | |
152 | for (i=0, yyns += start; i < count; i++, yyns++) | |
153 | PerlIO_printf(Perl_debug_log, " %8.8s", *yyns); | |
154 | PerlIO_printf(Perl_debug_log, "\nvalue:"); | |
155 | for (i=0, yyvs += start; i < count; i++, yyvs++) | |
e4584336 | 156 | PerlIO_printf(Perl_debug_log, " %8"UVxf, (UV)yyvs->ival); |
9388183f | 157 | PerlIO_printf(Perl_debug_log, "\n\n"); |
0de566d7 DM |
158 | } |
159 | ||
9388183f | 160 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) \ |
0de566d7 | 161 | do { \ |
9388183f CB |
162 | if (yydebug && DEBUG_v_TEST) \ |
163 | yy_stack_print (aTHX_ (yyss), (yyssp), (yyvs), (yyns)); \ | |
0de566d7 DM |
164 | } while (0) |
165 | ||
09bef843 | 166 | |
0de566d7 DM |
167 | /*------------------------------------------------. |
168 | | Report that the YYRULE is going to be reduced. | | |
169 | `------------------------------------------------*/ | |
170 | ||
171 | static void | |
172 | yy_reduce_print (pTHX_ int yyrule) | |
173 | { | |
174 | int yyi; | |
df35152e | 175 | const unsigned int yylineno = yyrline[yyrule]; |
0de566d7 DM |
176 | YYFPRINTF (Perl_debug_log, "Reducing stack by rule %d (line %u), ", |
177 | yyrule - 1, yylineno); | |
178 | /* Print the symbols being reduced, and their result. */ | |
179 | for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) | |
180 | YYFPRINTF (Perl_debug_log, "%s ", yytname [yyrhs[yyi]]); | |
181 | YYFPRINTF (Perl_debug_log, "-> %s\n", yytname [yyr1[yyrule]]); | |
182 | } | |
183 | ||
184 | # define YY_REDUCE_PRINT(Rule) \ | |
185 | do { \ | |
186 | if (yydebug) \ | |
187 | yy_reduce_print (aTHX_ Rule); \ | |
188 | } while (0) | |
189 | ||
190 | #else /* !DEBUGGING */ | |
191 | # define YYDPRINTF(Args) | |
192 | # define YYDSYMPRINT(Args) | |
9388183f CB |
193 | # define YYDSYMPRINTF(Title, Token, Value) |
194 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) | |
0de566d7 DM |
195 | # define YY_REDUCE_PRINT(Rule) |
196 | #endif /* !DEBUGGING */ | |
197 | ||
198 | ||
199 | /* YYINITDEPTH -- initial size of the parser's stacks. */ | |
200 | #ifndef YYINITDEPTH | |
201 | # define YYINITDEPTH 200 | |
09bef843 | 202 | #endif |
09bef843 | 203 | |
0de566d7 DM |
204 | |
205 | #if YYERROR_VERBOSE | |
206 | # ifndef yystrlen | |
207 | # if defined (__GLIBC__) && defined (_STRING_H) | |
208 | # define yystrlen strlen | |
209 | # else | |
210 | /* Return the length of YYSTR. */ | |
211 | static YYSIZE_T | |
212 | yystrlen (const char *yystr) | |
213 | { | |
214 | register const char *yys = yystr; | |
215 | ||
216 | while (*yys++ != '\0') | |
217 | continue; | |
218 | ||
219 | return yys - yystr - 1; | |
220 | } | |
221 | # endif | |
222 | # endif | |
223 | ||
224 | # ifndef yystpcpy | |
225 | # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) | |
226 | # define yystpcpy stpcpy | |
227 | # else | |
228 | /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in | |
229 | YYDEST. */ | |
230 | static char * | |
231 | yystpcpy (pTHX_ char *yydest, const char *yysrc) | |
232 | { | |
233 | register char *yyd = yydest; | |
234 | register const char *yys = yysrc; | |
235 | ||
236 | while ((*yyd++ = *yys++) != '\0') | |
237 | continue; | |
238 | ||
239 | return yyd - 1; | |
240 | } | |
241 | # endif | |
242 | # endif | |
243 | ||
244 | #endif /* !YYERROR_VERBOSE */ | |
245 | ||
0de566d7 DM |
246 | /*----------. |
247 | | yyparse. | | |
248 | `----------*/ | |
249 | ||
79072805 | 250 | int |
0de566d7 | 251 | Perl_yyparse (pTHX) |
79072805 | 252 | { |
0de566d7 DM |
253 | int yychar; /* The lookahead symbol. */ |
254 | YYSTYPE yylval; /* The semantic value of the lookahead symbol. */ | |
255 | int yynerrs; /* Number of syntax errors so far. */ | |
256 | register int yystate; | |
257 | register int yyn; | |
258 | int yyresult; | |
259 | ||
260 | /* Number of tokens to shift before error messages enabled. */ | |
261 | int yyerrstatus; | |
262 | /* Lookahead token as an internal (translated) token number. */ | |
263 | int yytoken = 0; | |
264 | ||
265 | /* two stacks and their tools: | |
a0288114 AL |
266 | yyss: related to states, |
267 | yyvs: related to semantic values, | |
0de566d7 DM |
268 | |
269 | Refer to the stacks thru separate pointers, to allow yyoverflow | |
270 | to reallocate them elsewhere. */ | |
271 | ||
272 | /* The state stack. */ | |
273 | short *yyss; | |
93a17b20 | 274 | register short *yyssp; |
0de566d7 DM |
275 | |
276 | /* The semantic value stack. */ | |
277 | YYSTYPE *yyvs; | |
93a17b20 | 278 | register YYSTYPE *yyvsp; |
a0d0e21e | 279 | |
0de566d7 DM |
280 | /* for ease of re-allocation and automatic freeing, have two SVs whose |
281 | * SvPVX points to the stacks */ | |
282 | SV *yyss_sv, *yyvs_sv; | |
283 | ||
9388183f CB |
284 | #ifdef DEBUGGING |
285 | /* maintain also a stack of token/rule names for debugging with -Dpv */ | |
e1ec3a88 | 286 | const char **yyns, **yynsp; |
9388183f CB |
287 | SV *yyns_sv; |
288 | # define YYPOPSTACK (yyvsp--, yyssp--, yynsp--) | |
289 | #else | |
290 | # define YYPOPSTACK (yyvsp--, yyssp--) | |
291 | #endif | |
292 | ||
0de566d7 DM |
293 | |
294 | YYSIZE_T yystacksize = YYINITDEPTH; | |
295 | ||
296 | /* The variables used to return semantic value and location from the | |
297 | action routines. */ | |
298 | YYSTYPE yyval; | |
299 | ||
300 | ||
301 | /* When reducing, the number of symbols on the RHS of the reduced | |
302 | rule. */ | |
303 | int yylen; | |
304 | ||
305 | YYDPRINTF ((Perl_debug_log, "Starting parse\n")); | |
306 | ||
0de566d7 | 307 | ENTER; /* force stack free before we return */ |
12fbd33b DM |
308 | SAVEVPTR(PL_yycharp); |
309 | SAVEVPTR(PL_yylvalp); | |
310 | PL_yycharp = &yychar; /* so PL_yyerror() can access it */ | |
311 | PL_yylvalp = &yylval; /* so various functions in toke.c can access it */ | |
312 | ||
9388183f CB |
313 | yyss_sv = NEWSV(73, YYINITDEPTH * sizeof(short)); |
314 | yyvs_sv = NEWSV(73, YYINITDEPTH * sizeof(YYSTYPE)); | |
0de566d7 DM |
315 | SAVEFREESV(yyss_sv); |
316 | SAVEFREESV(yyvs_sv); | |
317 | yyss = (short *) SvPVX(yyss_sv); | |
318 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); | |
9388183f CB |
319 | /* note that elements zero of yyvs and yyns are not used */ |
320 | yyssp = yyss; | |
321 | yyvsp = yyvs; | |
322 | #ifdef DEBUGGING | |
323 | yyns_sv = NEWSV(73, YYINITDEPTH * sizeof(char *)); | |
324 | SAVEFREESV(yyns_sv); | |
a28509cc | 325 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 | 326 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f CB |
327 | yynsp = yyns; |
328 | #endif | |
79072805 | 329 | |
0de566d7 DM |
330 | yystate = 0; |
331 | yyerrstatus = 0; | |
93a17b20 | 332 | yynerrs = 0; |
0de566d7 DM |
333 | yychar = YYEMPTY; /* Cause a token to be read. */ |
334 | ||
79072805 | 335 | |
9388183f CB |
336 | |
337 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); | |
0de566d7 DM |
338 | |
339 | goto yysetstate; | |
340 | ||
341 | /*------------------------------------------------------------. | |
342 | | yynewstate -- Push a new state, which is found in yystate. | | |
343 | `------------------------------------------------------------*/ | |
344 | yynewstate: | |
345 | /* In all cases, when you get here, the value and location stacks | |
346 | have just been pushed. so pushing a state here evens the stacks. | |
347 | */ | |
348 | yyssp++; | |
349 | ||
350 | yysetstate: | |
351 | *yyssp = yystate; | |
352 | ||
353 | if (yyss + yystacksize - 1 <= yyssp) { | |
354 | /* Get the current used size of the three stacks, in elements. */ | |
df35152e | 355 | const YYSIZE_T yysize = yyssp - yyss + 1; |
0de566d7 DM |
356 | |
357 | /* Extend the stack our own way. */ | |
358 | if (YYMAXDEPTH <= yystacksize) | |
359 | goto yyoverflowlab; | |
360 | yystacksize *= 2; | |
361 | if (YYMAXDEPTH < yystacksize) | |
362 | yystacksize = YYMAXDEPTH; | |
363 | ||
364 | SvGROW(yyss_sv, yystacksize * sizeof(short)); | |
365 | SvGROW(yyvs_sv, yystacksize * sizeof(YYSTYPE)); | |
366 | yyss = (short *) SvPVX(yyss_sv); | |
367 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); | |
9388183f CB |
368 | #ifdef DEBUGGING |
369 | SvGROW(yyns_sv, yystacksize * sizeof(char *)); | |
a28509cc | 370 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 | 371 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f CB |
372 | if (! yyns) |
373 | goto yyoverflowlab; | |
374 | yynsp = yyns + yysize - 1; | |
375 | #endif | |
0de566d7 DM |
376 | if (!yyss || ! yyvs) |
377 | goto yyoverflowlab; | |
378 | ||
379 | yyssp = yyss + yysize - 1; | |
380 | yyvsp = yyvs + yysize - 1; | |
381 | ||
382 | ||
383 | YYDPRINTF ((Perl_debug_log, "Stack size increased to %lu\n", | |
384 | (unsigned long int) yystacksize)); | |
385 | ||
386 | if (yyss + yystacksize - 1 <= yyssp) | |
387 | YYABORT; | |
93a17b20 | 388 | } |
0de566d7 | 389 | |
0de566d7 DM |
390 | goto yybackup; |
391 | ||
392 | /*-----------. | |
393 | | yybackup. | | |
394 | `-----------*/ | |
395 | yybackup: | |
396 | ||
397 | /* Do appropriate processing given the current state. */ | |
398 | /* Read a lookahead token if we need one and don't already have one. */ | |
399 | /* yyresume: */ | |
400 | ||
401 | /* First try to decide what to do without reference to lookahead token. */ | |
402 | ||
403 | yyn = yypact[yystate]; | |
404 | if (yyn == YYPACT_NINF) | |
405 | goto yydefault; | |
406 | ||
407 | /* Not known => get a lookahead token if don't already have one. */ | |
408 | ||
409 | /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ | |
410 | if (yychar == YYEMPTY) { | |
411 | YYDPRINTF ((Perl_debug_log, "Reading a token: ")); | |
12fbd33b DM |
412 | yychar = yylex(); |
413 | # ifdef EBCDIC | |
414 | if (yychar >= 0 && yychar < 255) { | |
415 | yychar = NATIVE_TO_ASCII(yychar); | |
416 | } | |
417 | # endif | |
0de566d7 DM |
418 | } |
419 | ||
420 | if (yychar <= YYEOF) { | |
421 | yychar = yytoken = YYEOF; | |
422 | YYDPRINTF ((Perl_debug_log, "Now at end of input.\n")); | |
93a17b20 | 423 | } |
0de566d7 DM |
424 | else { |
425 | yytoken = YYTRANSLATE (yychar); | |
9388183f | 426 | YYDSYMPRINTF ("Next token is", yytoken, &yylval); |
93a17b20 | 427 | } |
771df094 | 428 | |
0de566d7 DM |
429 | /* If the proper action on seeing token YYTOKEN is to reduce or to |
430 | detect an error, take that action. */ | |
431 | yyn += yytoken; | |
432 | if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) | |
433 | goto yydefault; | |
434 | yyn = yytable[yyn]; | |
435 | if (yyn <= 0) { | |
436 | if (yyn == 0 || yyn == YYTABLE_NINF) | |
437 | goto yyerrlab; | |
438 | yyn = -yyn; | |
439 | goto yyreduce; | |
440 | } | |
7b57b0ea | 441 | |
0de566d7 DM |
442 | if (yyn == YYFINAL) |
443 | YYACCEPT; | |
771df094 | 444 | |
0de566d7 DM |
445 | /* Shift the lookahead token. */ |
446 | YYDPRINTF ((Perl_debug_log, "Shifting token %s, ", yytname[yytoken])); | |
447 | ||
448 | /* Discard the token being shifted unless it is eof. */ | |
449 | if (yychar != YYEOF) | |
450 | yychar = YYEMPTY; | |
451 | ||
452 | *++yyvsp = yylval; | |
9388183f | 453 | #ifdef DEBUGGING |
e1ec3a88 | 454 | *++yynsp = (const char *)(yytname[yytoken]); |
9388183f | 455 | #endif |
0de566d7 DM |
456 | |
457 | ||
458 | /* Count tokens shifted since error; after three, turn off error | |
459 | status. */ | |
460 | if (yyerrstatus) | |
461 | yyerrstatus--; | |
462 | ||
463 | yystate = yyn; | |
9388183f CB |
464 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
465 | ||
0de566d7 DM |
466 | goto yynewstate; |
467 | ||
468 | ||
469 | /*-----------------------------------------------------------. | |
470 | | yydefault -- do the default action for the current state. | | |
471 | `-----------------------------------------------------------*/ | |
472 | yydefault: | |
473 | yyn = yydefact[yystate]; | |
474 | if (yyn == 0) | |
475 | goto yyerrlab; | |
476 | goto yyreduce; | |
477 | ||
478 | ||
479 | /*-----------------------------. | |
480 | | yyreduce -- Do a reduction. | | |
481 | `-----------------------------*/ | |
482 | yyreduce: | |
483 | /* yyn is the number of a rule to reduce with. */ | |
484 | yylen = yyr2[yyn]; | |
485 | ||
486 | /* If YYLEN is nonzero, implement the default value of the action: | |
a0288114 | 487 | "$$ = $1". |
0de566d7 DM |
488 | |
489 | Otherwise, the following line sets YYVAL to garbage. | |
490 | This behavior is undocumented and Bison | |
491 | users should not rely upon it. Assigning to YYVAL | |
492 | unconditionally makes the parser a bit smaller, and it avoids a | |
493 | GCC warning that YYVAL may be used uninitialized. */ | |
494 | yyval = yyvsp[1-yylen]; | |
495 | ||
496 | ||
497 | YY_REDUCE_PRINT (yyn); | |
498 | switch (yyn) { | |
499 | ||
500 | /* contains all the rule actions; auto-generated from perly.y */ | |
501 | ||
502 | #define dep() deprecate("\"do\" to call subroutines") | |
503 | #include "perly.act" | |
7b57b0ea | 504 | |
93a17b20 | 505 | } |
0de566d7 DM |
506 | |
507 | yyvsp -= yylen; | |
508 | yyssp -= yylen; | |
9388183f CB |
509 | #ifdef DEBUGGING |
510 | yynsp -= yylen; | |
511 | #endif | |
0de566d7 | 512 | |
0de566d7 DM |
513 | |
514 | *++yyvsp = yyval; | |
9388183f | 515 | #ifdef DEBUGGING |
e1ec3a88 | 516 | *++yynsp = (const char *)(yytname [yyr1[yyn]]); |
9388183f | 517 | #endif |
0de566d7 | 518 | |
a0288114 | 519 | /* Now shift the result of the reduction. Determine what state |
0de566d7 DM |
520 | that goes to, based on the state we popped back to and the rule |
521 | number reduced by. */ | |
522 | ||
523 | yyn = yyr1[yyn]; | |
524 | ||
525 | yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; | |
526 | if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) | |
527 | yystate = yytable[yystate]; | |
93a17b20 | 528 | else |
0de566d7 DM |
529 | yystate = yydefgoto[yyn - YYNTOKENS]; |
530 | ||
9388183f CB |
531 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
532 | ||
533 | #ifdef DEBUGGING | |
534 | /* tmp push yystate for stack print; this is normally pushed later in | |
535 | * yynewstate */ | |
536 | yyssp++; | |
537 | *yyssp = yystate; | |
538 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); | |
539 | yyssp--; | |
540 | #endif | |
541 | ||
0de566d7 DM |
542 | goto yynewstate; |
543 | ||
544 | ||
545 | /*------------------------------------. | |
546 | | yyerrlab -- here on detecting error | | |
547 | `------------------------------------*/ | |
548 | yyerrlab: | |
549 | /* If not already recovering from an error, report this error. */ | |
550 | if (!yyerrstatus) { | |
551 | ++yynerrs; | |
552 | #if YYERROR_VERBOSE | |
553 | yyn = yypact[yystate]; | |
554 | ||
555 | if (YYPACT_NINF < yyn && yyn < YYLAST) { | |
556 | YYSIZE_T yysize = 0; | |
df35152e | 557 | const int yytype = YYTRANSLATE (yychar); |
0de566d7 DM |
558 | char *yymsg; |
559 | int yyx, yycount; | |
560 | ||
561 | yycount = 0; | |
562 | /* Start YYX at -YYN if negative to avoid negative indexes in | |
563 | YYCHECK. */ | |
564 | for (yyx = yyn < 0 ? -yyn : 0; | |
565 | yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) | |
566 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) | |
567 | yysize += yystrlen (yytname[yyx]) + 15, yycount++; | |
568 | yysize += yystrlen ("syntax error, unexpected ") + 1; | |
569 | yysize += yystrlen (yytname[yytype]); | |
4b711db3 | 570 | Newx(yymsg, yysize, char *); |
0de566d7 | 571 | if (yymsg != 0) { |
df35152e | 572 | const char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); |
0de566d7 DM |
573 | yyp = yystpcpy (yyp, yytname[yytype]); |
574 | ||
575 | if (yycount < 5) { | |
576 | yycount = 0; | |
577 | for (yyx = yyn < 0 ? -yyn : 0; | |
578 | yyx < (int) (sizeof (yytname) / sizeof (char *)); | |
579 | yyx++) | |
580 | { | |
581 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { | |
582 | const char *yyq = ! yycount ? | |
583 | ", expecting " : " or "; | |
584 | yyp = yystpcpy (yyp, yyq); | |
585 | yyp = yystpcpy (yyp, yytname[yyx]); | |
586 | yycount++; | |
587 | } | |
588 | } | |
ecb2f335 | 589 | } |
0de566d7 DM |
590 | yyerror (yymsg); |
591 | YYSTACK_FREE (yymsg); | |
592 | } | |
593 | else | |
594 | yyerror ("syntax error; also virtual memory exhausted"); | |
595 | } | |
596 | else | |
597 | #endif /* YYERROR_VERBOSE */ | |
598 | yyerror ("syntax error"); | |
93a17b20 | 599 | } |
0de566d7 DM |
600 | |
601 | ||
602 | if (yyerrstatus == 3) { | |
603 | /* If just tried and failed to reuse lookahead token after an | |
604 | error, discard it. */ | |
605 | ||
606 | /* Return failure if at end of input. */ | |
607 | if (yychar == YYEOF) { | |
608 | /* Pop the error token. */ | |
609 | YYPOPSTACK; | |
610 | /* Pop the rest of the stack. */ | |
611 | while (yyss < yyssp) { | |
9388183f | 612 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0de566d7 DM |
613 | YYPOPSTACK; |
614 | } | |
615 | YYABORT; | |
616 | } | |
617 | ||
9388183f | 618 | YYDSYMPRINTF ("Error: discarding", yytoken, &yylval); |
0de566d7 DM |
619 | yychar = YYEMPTY; |
620 | ||
93a17b20 | 621 | } |
0de566d7 DM |
622 | |
623 | /* Else will try to reuse lookahead token after shifting the error | |
624 | token. */ | |
625 | goto yyerrlab1; | |
626 | ||
627 | ||
628 | /*----------------------------------------------------. | |
629 | | yyerrlab1 -- error raised explicitly by an action. | | |
630 | `----------------------------------------------------*/ | |
631 | yyerrlab1: | |
632 | yyerrstatus = 3; /* Each real token shifted decrements this. */ | |
633 | ||
634 | for (;;) { | |
635 | yyn = yypact[yystate]; | |
636 | if (yyn != YYPACT_NINF) { | |
637 | yyn += YYTERROR; | |
638 | if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { | |
639 | yyn = yytable[yyn]; | |
640 | if (0 < yyn) | |
641 | break; | |
642 | } | |
643 | } | |
644 | ||
645 | /* Pop the current state because it cannot handle the error token. */ | |
646 | if (yyssp == yyss) | |
647 | YYABORT; | |
648 | ||
9388183f | 649 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0de566d7 | 650 | yyvsp--; |
9388183f CB |
651 | #ifdef DEBUGGING |
652 | yynsp--; | |
653 | #endif | |
0de566d7 DM |
654 | yystate = *--yyssp; |
655 | ||
9388183f | 656 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
93a17b20 | 657 | } |
0de566d7 DM |
658 | |
659 | if (yyn == YYFINAL) | |
660 | YYACCEPT; | |
661 | ||
662 | YYDPRINTF ((Perl_debug_log, "Shifting error token, ")); | |
663 | ||
664 | *++yyvsp = yylval; | |
9388183f CB |
665 | #ifdef DEBUGGING |
666 | *++yynsp ="<err>"; | |
667 | #endif | |
0de566d7 DM |
668 | |
669 | yystate = yyn; | |
9388183f CB |
670 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
671 | ||
0de566d7 DM |
672 | goto yynewstate; |
673 | ||
674 | ||
675 | /*-------------------------------------. | |
676 | | yyacceptlab -- YYACCEPT comes here. | | |
677 | `-------------------------------------*/ | |
678 | yyacceptlab: | |
679 | yyresult = 0; | |
680 | goto yyreturn; | |
681 | ||
682 | /*-----------------------------------. | |
683 | | yyabortlab -- YYABORT comes here. | | |
684 | `-----------------------------------*/ | |
685 | yyabortlab: | |
686 | yyresult = 1; | |
687 | goto yyreturn; | |
688 | ||
689 | /*----------------------------------------------. | |
690 | | yyoverflowlab -- parser overflow comes here. | | |
691 | `----------------------------------------------*/ | |
692 | yyoverflowlab: | |
693 | yyerror ("parser stack overflow"); | |
694 | yyresult = 2; | |
695 | /* Fall through. */ | |
696 | ||
697 | yyreturn: | |
698 | ||
12fbd33b | 699 | LEAVE; /* force stack free before we return */ |
e1f15930 | 700 | |
0de566d7 | 701 | return yyresult; |
e1f15930 | 702 | } |
66610fdd RGS |
703 | |
704 | /* | |
705 | * Local variables: | |
706 | * c-indentation-style: bsd | |
707 | * c-basic-offset: 4 | |
708 | * indent-tabs-mode: t | |
709 | * End: | |
710 | * | |
37442d52 RGS |
711 | * ex: set ts=8 sts=4 sw=4 noet: |
712 | */ |