Commit | Line | Data |
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1 | /* perly.c |
2 | * |
54ca4ee7 |
3 | * Copyright (c) 2004, 2005, 2006 Larry Wall and others |
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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 |
f05e27e5 |
10 | * and edited; the bits that are dependent on perly.y are now |
11 | * #included from the files perly.tab and perly.act. |
0de566d7 |
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. |
bc463c31 |
20 | * |
21 | * Note that this file is also #included in madly.c, to allow compilation |
22 | * of a second parser, Perl_madparse, that is identical to Perl_yyparse, |
f05e27e5 |
23 | * but which includes extra code for dumping the parse tree. |
24 | * This is controlled by the PERL_IN_MADLY_C define. |
0de566d7 |
25 | */ |
26 | |
27 | |
3797f23d |
28 | |
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29 | /* allow stack size to grow effectively without limit */ |
30 | #define YYMAXDEPTH 10000000 |
31 | |
79072805 |
32 | #include "EXTERN.h" |
864dbfa3 |
33 | #define PERL_IN_PERLY_C |
79072805 |
34 | #include "perl.h" |
09bef843 |
35 | |
3797f23d |
36 | typedef unsigned char yytype_uint8; |
37 | typedef signed char yytype_int8; |
38 | typedef unsigned short int yytype_uint16; |
39 | typedef short int yytype_int16; |
0de566d7 |
40 | typedef signed char yysigned_char; |
41 | |
42 | #ifdef DEBUGGING |
43 | # define YYDEBUG 1 |
93a17b20 |
44 | #else |
0de566d7 |
45 | # define YYDEBUG 0 |
93a17b20 |
46 | #endif |
09bef843 |
47 | |
f05e27e5 |
48 | /* contains all the parser state tables; auto-generated from perly.y */ |
49 | #include "perly.tab" |
0de566d7 |
50 | |
51 | # define YYSIZE_T size_t |
52 | |
53 | #define yyerrok (yyerrstatus = 0) |
54 | #define yyclearin (yychar = YYEMPTY) |
55 | #define YYEMPTY (-2) |
56 | #define YYEOF 0 |
57 | |
58 | #define YYACCEPT goto yyacceptlab |
59 | #define YYABORT goto yyabortlab |
60 | #define YYERROR goto yyerrlab1 |
61 | |
62 | |
63 | /* Like YYERROR except do call yyerror. This remains here temporarily |
64 | to ease the transition to the new meaning of YYERROR, for GCC. |
65 | Once GCC version 2 has supplanted version 1, this can go. */ |
66 | |
67 | #define YYFAIL goto yyerrlab |
68 | |
69 | #define YYRECOVERING() (!!yyerrstatus) |
70 | |
71 | #define YYBACKUP(Token, Value) \ |
72 | do \ |
73 | if (yychar == YYEMPTY && yylen == 1) { \ |
74 | yychar = (Token); \ |
75 | yylval = (Value); \ |
76 | yytoken = YYTRANSLATE (yychar); \ |
77 | YYPOPSTACK; \ |
78 | goto yybackup; \ |
79 | } \ |
80 | else { \ |
81 | yyerror ("syntax error: cannot back up"); \ |
82 | YYERROR; \ |
83 | } \ |
84 | while (0) |
85 | |
86 | #define YYTERROR 1 |
87 | #define YYERRCODE 256 |
88 | |
0de566d7 |
89 | /* Enable debugging if requested. */ |
9388183f |
90 | #ifdef DEBUGGING |
0de566d7 |
91 | |
92 | # define yydebug (DEBUG_p_TEST) |
93 | |
94 | # define YYFPRINTF PerlIO_printf |
95 | |
96 | # define YYDPRINTF(Args) \ |
97 | do { \ |
98 | if (yydebug) \ |
99 | YYFPRINTF 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); \ |
356f4fed |
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 |
356f4fed |
116 | yysymprint(pTHX_ PerlIO * const yyoutput, int yytype, const YYSTYPE * const yyvaluep) |
0de566d7 |
117 | { |
0de566d7 |
118 | if (yytype < YYNTOKENS) { |
119 | YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); |
120 | # ifdef YYPRINT |
121 | YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); |
9388183f |
122 | # else |
e4584336 |
123 | YYFPRINTF (yyoutput, "0x%"UVxf, (UV)yyvaluep->ival); |
0de566d7 |
124 | # endif |
125 | } |
126 | else |
127 | YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); |
128 | |
0de566d7 |
129 | YYFPRINTF (yyoutput, ")"); |
130 | } |
131 | |
132 | |
9388183f |
133 | /* yy_stack_print() |
134 | * print the top 8 items on the parse stack. The args have the same |
135 | * meanings as the local vars in yyparse() of the same name */ |
0de566d7 |
136 | |
137 | static void |
df35152e |
138 | yy_stack_print (pTHX_ const short *yyss, const short *yyssp, const YYSTYPE *yyvs, const char**yyns) |
0de566d7 |
139 | { |
9388183f |
140 | int i; |
141 | int start = 1; |
142 | int count = (int)(yyssp - yyss); |
143 | |
144 | if (count > 8) { |
145 | start = count - 8 + 1; |
146 | count = 8; |
147 | } |
148 | |
149 | PerlIO_printf(Perl_debug_log, "\nindex:"); |
150 | for (i=0; i < count; i++) |
151 | PerlIO_printf(Perl_debug_log, " %8d", start+i); |
152 | PerlIO_printf(Perl_debug_log, "\nstate:"); |
21612876 |
153 | for (i=0; i < count; i++) |
154 | PerlIO_printf(Perl_debug_log, " %8d", yyss[start+i]); |
9388183f |
155 | PerlIO_printf(Perl_debug_log, "\ntoken:"); |
21612876 |
156 | for (i=0; i < count; i++) |
157 | PerlIO_printf(Perl_debug_log, " %8.8s", yyns[start+i]); |
9388183f |
158 | PerlIO_printf(Perl_debug_log, "\nvalue:"); |
21612876 |
159 | for (i=0; i < count; i++) { |
d5c6462e |
160 | switch (yy_type_tab[yystos[yyss[start+i]]]) { |
161 | case toketype_opval: |
21612876 |
162 | PerlIO_printf(Perl_debug_log, " %8.8s", |
163 | yyvs[start+i].opval |
164 | ? PL_op_name[yyvs[start+i].opval->op_type] |
d5c6462e |
165 | : "(NULL)" |
21612876 |
166 | ); |
d5c6462e |
167 | break; |
168 | #ifndef PERL_IN_MADLY_C |
169 | case toketype_p_tkval: |
170 | PerlIO_printf(Perl_debug_log, " %8.8s", |
171 | yyvs[start+i].pval ? yyvs[start+i].pval : "(NULL)"); |
172 | break; |
173 | |
174 | case toketype_i_tkval: |
175 | #endif |
176 | case toketype_ival: |
177 | PerlIO_printf(Perl_debug_log, " %8"IVdf, yyvs[start+i].ival); |
178 | break; |
179 | default: |
21612876 |
180 | PerlIO_printf(Perl_debug_log, " %8"UVxf, (UV)yyvs[start+i].ival); |
d5c6462e |
181 | } |
21612876 |
182 | } |
9388183f |
183 | PerlIO_printf(Perl_debug_log, "\n\n"); |
0de566d7 |
184 | } |
185 | |
9388183f |
186 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) \ |
0de566d7 |
187 | do { \ |
9388183f |
188 | if (yydebug && DEBUG_v_TEST) \ |
189 | yy_stack_print (aTHX_ (yyss), (yyssp), (yyvs), (yyns)); \ |
0de566d7 |
190 | } while (0) |
191 | |
09bef843 |
192 | |
0de566d7 |
193 | /*------------------------------------------------. |
194 | | Report that the YYRULE is going to be reduced. | |
195 | `------------------------------------------------*/ |
196 | |
197 | static void |
198 | yy_reduce_print (pTHX_ int yyrule) |
199 | { |
200 | int yyi; |
df35152e |
201 | const unsigned int yylineno = yyrline[yyrule]; |
0de566d7 |
202 | YYFPRINTF (Perl_debug_log, "Reducing stack by rule %d (line %u), ", |
203 | yyrule - 1, yylineno); |
204 | /* Print the symbols being reduced, and their result. */ |
205 | for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) |
206 | YYFPRINTF (Perl_debug_log, "%s ", yytname [yyrhs[yyi]]); |
207 | YYFPRINTF (Perl_debug_log, "-> %s\n", yytname [yyr1[yyrule]]); |
208 | } |
209 | |
210 | # define YY_REDUCE_PRINT(Rule) \ |
211 | do { \ |
212 | if (yydebug) \ |
213 | yy_reduce_print (aTHX_ Rule); \ |
214 | } while (0) |
215 | |
216 | #else /* !DEBUGGING */ |
217 | # define YYDPRINTF(Args) |
9388183f |
218 | # define YYDSYMPRINTF(Title, Token, Value) |
219 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) |
0de566d7 |
220 | # define YY_REDUCE_PRINT(Rule) |
221 | #endif /* !DEBUGGING */ |
222 | |
223 | |
224 | /* YYINITDEPTH -- initial size of the parser's stacks. */ |
225 | #ifndef YYINITDEPTH |
226 | # define YYINITDEPTH 200 |
09bef843 |
227 | #endif |
09bef843 |
228 | |
0de566d7 |
229 | |
230 | #if YYERROR_VERBOSE |
231 | # ifndef yystrlen |
232 | # if defined (__GLIBC__) && defined (_STRING_H) |
233 | # define yystrlen strlen |
234 | # else |
235 | /* Return the length of YYSTR. */ |
236 | static YYSIZE_T |
237 | yystrlen (const char *yystr) |
238 | { |
239 | register const char *yys = yystr; |
240 | |
241 | while (*yys++ != '\0') |
242 | continue; |
243 | |
244 | return yys - yystr - 1; |
245 | } |
246 | # endif |
247 | # endif |
248 | |
249 | # ifndef yystpcpy |
250 | # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) |
251 | # define yystpcpy stpcpy |
252 | # else |
253 | /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in |
254 | YYDEST. */ |
255 | static char * |
256 | yystpcpy (pTHX_ char *yydest, const char *yysrc) |
257 | { |
258 | register char *yyd = yydest; |
259 | register const char *yys = yysrc; |
260 | |
261 | while ((*yyd++ = *yys++) != '\0') |
262 | continue; |
263 | |
264 | return yyd - 1; |
265 | } |
266 | # endif |
267 | # endif |
268 | |
269 | #endif /* !YYERROR_VERBOSE */ |
270 | |
0de566d7 |
271 | /*----------. |
272 | | yyparse. | |
273 | `----------*/ |
274 | |
79072805 |
275 | int |
bc463c31 |
276 | #ifdef PERL_IN_MADLY_C |
277 | Perl_madparse (pTHX) |
278 | #else |
0de566d7 |
279 | Perl_yyparse (pTHX) |
bc463c31 |
280 | #endif |
79072805 |
281 | { |
97aff369 |
282 | dVAR; |
0de566d7 |
283 | int yychar; /* The lookahead symbol. */ |
284 | YYSTYPE yylval; /* The semantic value of the lookahead symbol. */ |
285 | int yynerrs; /* Number of syntax errors so far. */ |
286 | register int yystate; |
287 | register int yyn; |
288 | int yyresult; |
289 | |
290 | /* Number of tokens to shift before error messages enabled. */ |
291 | int yyerrstatus; |
292 | /* Lookahead token as an internal (translated) token number. */ |
293 | int yytoken = 0; |
294 | |
295 | /* two stacks and their tools: |
a0288114 |
296 | yyss: related to states, |
297 | yyvs: related to semantic values, |
0de566d7 |
298 | |
299 | Refer to the stacks thru separate pointers, to allow yyoverflow |
300 | to reallocate them elsewhere. */ |
301 | |
302 | /* The state stack. */ |
303 | short *yyss; |
93a17b20 |
304 | register short *yyssp; |
0de566d7 |
305 | |
306 | /* The semantic value stack. */ |
307 | YYSTYPE *yyvs; |
93a17b20 |
308 | register YYSTYPE *yyvsp; |
a0d0e21e |
309 | |
0de566d7 |
310 | /* for ease of re-allocation and automatic freeing, have two SVs whose |
311 | * SvPVX points to the stacks */ |
312 | SV *yyss_sv, *yyvs_sv; |
313 | |
9388183f |
314 | #ifdef DEBUGGING |
315 | /* maintain also a stack of token/rule names for debugging with -Dpv */ |
e1ec3a88 |
316 | const char **yyns, **yynsp; |
9388183f |
317 | SV *yyns_sv; |
318 | # define YYPOPSTACK (yyvsp--, yyssp--, yynsp--) |
319 | #else |
320 | # define YYPOPSTACK (yyvsp--, yyssp--) |
321 | #endif |
322 | |
0de566d7 |
323 | |
324 | YYSIZE_T yystacksize = YYINITDEPTH; |
325 | |
326 | /* The variables used to return semantic value and location from the |
327 | action routines. */ |
328 | YYSTYPE yyval; |
329 | |
330 | |
331 | /* When reducing, the number of symbols on the RHS of the reduced |
332 | rule. */ |
333 | int yylen; |
334 | |
2af555bf |
335 | /* keep track of which pad ops are currently using */ |
336 | AV* comppad = PL_comppad; |
337 | |
bc463c31 |
338 | #ifndef PERL_IN_MADLY_C |
339 | # ifdef PERL_MAD |
00e74f14 |
340 | if (PL_madskills) |
341 | return madparse(); |
bc463c31 |
342 | # endif |
81d86705 |
343 | #endif |
344 | |
0de566d7 |
345 | YYDPRINTF ((Perl_debug_log, "Starting parse\n")); |
346 | |
0de566d7 |
347 | ENTER; /* force stack free before we return */ |
12fbd33b |
348 | SAVEVPTR(PL_yycharp); |
349 | SAVEVPTR(PL_yylvalp); |
350 | PL_yycharp = &yychar; /* so PL_yyerror() can access it */ |
351 | PL_yylvalp = &yylval; /* so various functions in toke.c can access it */ |
352 | |
561b68a9 |
353 | yyss_sv = newSV(YYINITDEPTH * sizeof(short)); |
354 | yyvs_sv = newSV(YYINITDEPTH * sizeof(YYSTYPE)); |
0de566d7 |
355 | SAVEFREESV(yyss_sv); |
356 | SAVEFREESV(yyvs_sv); |
357 | yyss = (short *) SvPVX(yyss_sv); |
358 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); |
9388183f |
359 | /* note that elements zero of yyvs and yyns are not used */ |
360 | yyssp = yyss; |
361 | yyvsp = yyvs; |
362 | #ifdef DEBUGGING |
561b68a9 |
363 | yyns_sv = newSV(YYINITDEPTH * sizeof(char *)); |
9388183f |
364 | SAVEFREESV(yyns_sv); |
a28509cc |
365 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 |
366 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f |
367 | yynsp = yyns; |
368 | #endif |
79072805 |
369 | |
0de566d7 |
370 | yystate = 0; |
371 | yyerrstatus = 0; |
93a17b20 |
372 | yynerrs = 0; |
0de566d7 |
373 | yychar = YYEMPTY; /* Cause a token to be read. */ |
374 | |
9388183f |
375 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
0de566d7 |
376 | |
377 | goto yysetstate; |
378 | |
379 | /*------------------------------------------------------------. |
380 | | yynewstate -- Push a new state, which is found in yystate. | |
381 | `------------------------------------------------------------*/ |
382 | yynewstate: |
383 | /* In all cases, when you get here, the value and location stacks |
384 | have just been pushed. so pushing a state here evens the stacks. |
385 | */ |
386 | yyssp++; |
387 | |
388 | yysetstate: |
389 | *yyssp = yystate; |
390 | |
391 | if (yyss + yystacksize - 1 <= yyssp) { |
392 | /* Get the current used size of the three stacks, in elements. */ |
df35152e |
393 | const YYSIZE_T yysize = yyssp - yyss + 1; |
0de566d7 |
394 | |
395 | /* Extend the stack our own way. */ |
396 | if (YYMAXDEPTH <= yystacksize) |
397 | goto yyoverflowlab; |
398 | yystacksize *= 2; |
399 | if (YYMAXDEPTH < yystacksize) |
400 | yystacksize = YYMAXDEPTH; |
401 | |
402 | SvGROW(yyss_sv, yystacksize * sizeof(short)); |
403 | SvGROW(yyvs_sv, yystacksize * sizeof(YYSTYPE)); |
404 | yyss = (short *) SvPVX(yyss_sv); |
405 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); |
9388183f |
406 | #ifdef DEBUGGING |
407 | SvGROW(yyns_sv, yystacksize * sizeof(char *)); |
a28509cc |
408 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 |
409 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f |
410 | if (! yyns) |
411 | goto yyoverflowlab; |
412 | yynsp = yyns + yysize - 1; |
413 | #endif |
0de566d7 |
414 | if (!yyss || ! yyvs) |
415 | goto yyoverflowlab; |
416 | |
417 | yyssp = yyss + yysize - 1; |
418 | yyvsp = yyvs + yysize - 1; |
419 | |
420 | |
421 | YYDPRINTF ((Perl_debug_log, "Stack size increased to %lu\n", |
422 | (unsigned long int) yystacksize)); |
423 | |
424 | if (yyss + yystacksize - 1 <= yyssp) |
425 | YYABORT; |
93a17b20 |
426 | } |
0de566d7 |
427 | |
0de566d7 |
428 | goto yybackup; |
429 | |
430 | /*-----------. |
431 | | yybackup. | |
432 | `-----------*/ |
433 | yybackup: |
434 | |
435 | /* Do appropriate processing given the current state. */ |
436 | /* Read a lookahead token if we need one and don't already have one. */ |
437 | /* yyresume: */ |
438 | |
439 | /* First try to decide what to do without reference to lookahead token. */ |
440 | |
441 | yyn = yypact[yystate]; |
442 | if (yyn == YYPACT_NINF) |
443 | goto yydefault; |
444 | |
445 | /* Not known => get a lookahead token if don't already have one. */ |
446 | |
447 | /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ |
448 | if (yychar == YYEMPTY) { |
449 | YYDPRINTF ((Perl_debug_log, "Reading a token: ")); |
f05e27e5 |
450 | #ifdef PERL_IN_MADLY_C |
00e74f14 |
451 | yychar = PL_madskills ? madlex() : yylex(); |
f05e27e5 |
452 | #else |
12fbd33b |
453 | yychar = yylex(); |
81d86705 |
454 | #endif |
bc463c31 |
455 | |
12fbd33b |
456 | # ifdef EBCDIC |
457 | if (yychar >= 0 && yychar < 255) { |
458 | yychar = NATIVE_TO_ASCII(yychar); |
459 | } |
460 | # endif |
0de566d7 |
461 | } |
462 | |
463 | if (yychar <= YYEOF) { |
464 | yychar = yytoken = YYEOF; |
465 | YYDPRINTF ((Perl_debug_log, "Now at end of input.\n")); |
93a17b20 |
466 | } |
0de566d7 |
467 | else { |
468 | yytoken = YYTRANSLATE (yychar); |
9388183f |
469 | YYDSYMPRINTF ("Next token is", yytoken, &yylval); |
93a17b20 |
470 | } |
771df094 |
471 | |
0de566d7 |
472 | /* If the proper action on seeing token YYTOKEN is to reduce or to |
473 | detect an error, take that action. */ |
474 | yyn += yytoken; |
475 | if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) |
476 | goto yydefault; |
477 | yyn = yytable[yyn]; |
478 | if (yyn <= 0) { |
479 | if (yyn == 0 || yyn == YYTABLE_NINF) |
480 | goto yyerrlab; |
481 | yyn = -yyn; |
482 | goto yyreduce; |
483 | } |
7b57b0ea |
484 | |
0de566d7 |
485 | if (yyn == YYFINAL) |
486 | YYACCEPT; |
771df094 |
487 | |
0de566d7 |
488 | /* Shift the lookahead token. */ |
489 | YYDPRINTF ((Perl_debug_log, "Shifting token %s, ", yytname[yytoken])); |
490 | |
491 | /* Discard the token being shifted unless it is eof. */ |
492 | if (yychar != YYEOF) |
493 | yychar = YYEMPTY; |
494 | |
495 | *++yyvsp = yylval; |
9388183f |
496 | #ifdef DEBUGGING |
e1ec3a88 |
497 | *++yynsp = (const char *)(yytname[yytoken]); |
9388183f |
498 | #endif |
0de566d7 |
499 | |
500 | |
501 | /* Count tokens shifted since error; after three, turn off error |
502 | status. */ |
503 | if (yyerrstatus) |
504 | yyerrstatus--; |
505 | |
506 | yystate = yyn; |
9388183f |
507 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
508 | |
0de566d7 |
509 | goto yynewstate; |
510 | |
511 | |
512 | /*-----------------------------------------------------------. |
513 | | yydefault -- do the default action for the current state. | |
514 | `-----------------------------------------------------------*/ |
515 | yydefault: |
516 | yyn = yydefact[yystate]; |
517 | if (yyn == 0) |
518 | goto yyerrlab; |
519 | goto yyreduce; |
520 | |
521 | |
522 | /*-----------------------------. |
523 | | yyreduce -- Do a reduction. | |
524 | `-----------------------------*/ |
525 | yyreduce: |
526 | /* yyn is the number of a rule to reduce with. */ |
527 | yylen = yyr2[yyn]; |
528 | |
529 | /* If YYLEN is nonzero, implement the default value of the action: |
a0288114 |
530 | "$$ = $1". |
0de566d7 |
531 | |
532 | Otherwise, the following line sets YYVAL to garbage. |
533 | This behavior is undocumented and Bison |
534 | users should not rely upon it. Assigning to YYVAL |
535 | unconditionally makes the parser a bit smaller, and it avoids a |
536 | GCC warning that YYVAL may be used uninitialized. */ |
537 | yyval = yyvsp[1-yylen]; |
538 | |
539 | |
540 | YY_REDUCE_PRINT (yyn); |
541 | switch (yyn) { |
542 | |
0de566d7 |
543 | |
544 | #define dep() deprecate("\"do\" to call subroutines") |
f05e27e5 |
545 | |
bc463c31 |
546 | #ifdef PERL_IN_MADLY_C |
f05e27e5 |
547 | # define IVAL(i) (i)->tk_lval.ival |
548 | # define PVAL(p) (p)->tk_lval.pval |
549 | # define TOKEN_GETMAD(a,b,c) token_getmad((a),(b),(c)) |
550 | # define TOKEN_FREE(a) token_free(a) |
551 | # define OP_GETMAD(a,b,c) op_getmad((a),(b),(c)) |
552 | # define IF_MAD(a,b) (a) |
553 | # define DO_MAD(a) a |
554 | # define MAD |
bc463c31 |
555 | #else |
f05e27e5 |
556 | # define IVAL(i) (i) |
557 | # define PVAL(p) (p) |
558 | # define TOKEN_GETMAD(a,b,c) |
559 | # define TOKEN_FREE(a) |
560 | # define OP_GETMAD(a,b,c) |
561 | # define IF_MAD(a,b) (b) |
562 | # define DO_MAD(a) |
563 | # undef MAD |
bc463c31 |
564 | #endif |
7b57b0ea |
565 | |
f05e27e5 |
566 | /* contains all the rule actions; auto-generated from perly.y */ |
567 | #include "perly.act" |
568 | |
93a17b20 |
569 | } |
0de566d7 |
570 | |
571 | yyvsp -= yylen; |
572 | yyssp -= yylen; |
9388183f |
573 | #ifdef DEBUGGING |
574 | yynsp -= yylen; |
575 | #endif |
0de566d7 |
576 | |
0de566d7 |
577 | |
578 | *++yyvsp = yyval; |
2af555bf |
579 | comppad = PL_comppad; |
580 | |
9388183f |
581 | #ifdef DEBUGGING |
e1ec3a88 |
582 | *++yynsp = (const char *)(yytname [yyr1[yyn]]); |
9388183f |
583 | #endif |
0de566d7 |
584 | |
a0288114 |
585 | /* Now shift the result of the reduction. Determine what state |
0de566d7 |
586 | that goes to, based on the state we popped back to and the rule |
587 | number reduced by. */ |
588 | |
589 | yyn = yyr1[yyn]; |
590 | |
591 | yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; |
592 | if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) |
593 | yystate = yytable[yystate]; |
93a17b20 |
594 | else |
0de566d7 |
595 | yystate = yydefgoto[yyn - YYNTOKENS]; |
596 | |
9388183f |
597 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
598 | |
599 | #ifdef DEBUGGING |
600 | /* tmp push yystate for stack print; this is normally pushed later in |
601 | * yynewstate */ |
602 | yyssp++; |
603 | *yyssp = yystate; |
604 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
605 | yyssp--; |
606 | #endif |
607 | |
0de566d7 |
608 | goto yynewstate; |
609 | |
610 | |
611 | /*------------------------------------. |
612 | | yyerrlab -- here on detecting error | |
613 | `------------------------------------*/ |
614 | yyerrlab: |
615 | /* If not already recovering from an error, report this error. */ |
616 | if (!yyerrstatus) { |
617 | ++yynerrs; |
618 | #if YYERROR_VERBOSE |
619 | yyn = yypact[yystate]; |
620 | |
621 | if (YYPACT_NINF < yyn && yyn < YYLAST) { |
622 | YYSIZE_T yysize = 0; |
df35152e |
623 | const int yytype = YYTRANSLATE (yychar); |
0de566d7 |
624 | char *yymsg; |
625 | int yyx, yycount; |
626 | |
627 | yycount = 0; |
628 | /* Start YYX at -YYN if negative to avoid negative indexes in |
629 | YYCHECK. */ |
630 | for (yyx = yyn < 0 ? -yyn : 0; |
631 | yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) |
632 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) |
633 | yysize += yystrlen (yytname[yyx]) + 15, yycount++; |
634 | yysize += yystrlen ("syntax error, unexpected ") + 1; |
635 | yysize += yystrlen (yytname[yytype]); |
4b711db3 |
636 | Newx(yymsg, yysize, char *); |
0de566d7 |
637 | if (yymsg != 0) { |
df35152e |
638 | const char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); |
0de566d7 |
639 | yyp = yystpcpy (yyp, yytname[yytype]); |
640 | |
641 | if (yycount < 5) { |
642 | yycount = 0; |
643 | for (yyx = yyn < 0 ? -yyn : 0; |
644 | yyx < (int) (sizeof (yytname) / sizeof (char *)); |
645 | yyx++) |
646 | { |
647 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { |
648 | const char *yyq = ! yycount ? |
649 | ", expecting " : " or "; |
650 | yyp = yystpcpy (yyp, yyq); |
651 | yyp = yystpcpy (yyp, yytname[yyx]); |
652 | yycount++; |
653 | } |
654 | } |
ecb2f335 |
655 | } |
0de566d7 |
656 | yyerror (yymsg); |
657 | YYSTACK_FREE (yymsg); |
658 | } |
659 | else |
660 | yyerror ("syntax error; also virtual memory exhausted"); |
661 | } |
662 | else |
663 | #endif /* YYERROR_VERBOSE */ |
664 | yyerror ("syntax error"); |
93a17b20 |
665 | } |
0de566d7 |
666 | |
667 | |
668 | if (yyerrstatus == 3) { |
669 | /* If just tried and failed to reuse lookahead token after an |
670 | error, discard it. */ |
671 | |
672 | /* Return failure if at end of input. */ |
673 | if (yychar == YYEOF) { |
674 | /* Pop the error token. */ |
675 | YYPOPSTACK; |
676 | /* Pop the rest of the stack. */ |
2af555bf |
677 | PAD_RESTORE_LOCAL(comppad); |
0de566d7 |
678 | while (yyss < yyssp) { |
9388183f |
679 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
2af555bf |
680 | if (yy_type_tab[yystos[*yyssp]] == toketype_padval) { |
681 | comppad = yyvsp->padval; |
682 | PAD_RESTORE_LOCAL(comppad); |
683 | } |
684 | else if (yy_type_tab[yystos[*yyssp]] == toketype_opval) { |
0539ab63 |
685 | YYDPRINTF ((Perl_debug_log, "(freeing op)\n")); |
686 | op_free(yyvsp->opval); |
687 | } |
0de566d7 |
688 | YYPOPSTACK; |
689 | } |
690 | YYABORT; |
691 | } |
692 | |
9388183f |
693 | YYDSYMPRINTF ("Error: discarding", yytoken, &yylval); |
0de566d7 |
694 | yychar = YYEMPTY; |
695 | |
93a17b20 |
696 | } |
0de566d7 |
697 | |
698 | /* Else will try to reuse lookahead token after shifting the error |
699 | token. */ |
700 | goto yyerrlab1; |
701 | |
702 | |
703 | /*----------------------------------------------------. |
704 | | yyerrlab1 -- error raised explicitly by an action. | |
705 | `----------------------------------------------------*/ |
706 | yyerrlab1: |
707 | yyerrstatus = 3; /* Each real token shifted decrements this. */ |
708 | |
2af555bf |
709 | PAD_RESTORE_LOCAL(comppad); |
0de566d7 |
710 | for (;;) { |
711 | yyn = yypact[yystate]; |
712 | if (yyn != YYPACT_NINF) { |
713 | yyn += YYTERROR; |
714 | if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { |
715 | yyn = yytable[yyn]; |
716 | if (0 < yyn) |
717 | break; |
718 | } |
719 | } |
720 | |
721 | /* Pop the current state because it cannot handle the error token. */ |
722 | if (yyssp == yyss) |
723 | YYABORT; |
724 | |
9388183f |
725 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
2af555bf |
726 | if (yy_type_tab[yystos[*yyssp]] == toketype_padval) { |
727 | comppad = yyvsp->padval; |
728 | PAD_RESTORE_LOCAL(comppad); |
729 | } |
730 | else if (yy_type_tab[yystos[*yyssp]] == toketype_opval) { |
0539ab63 |
731 | YYDPRINTF ((Perl_debug_log, "(freeing op)\n")); |
732 | op_free(yyvsp->opval); |
733 | } |
0de566d7 |
734 | yyvsp--; |
9388183f |
735 | #ifdef DEBUGGING |
736 | yynsp--; |
737 | #endif |
0de566d7 |
738 | yystate = *--yyssp; |
739 | |
9388183f |
740 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
93a17b20 |
741 | } |
0de566d7 |
742 | |
743 | if (yyn == YYFINAL) |
744 | YYACCEPT; |
745 | |
746 | YYDPRINTF ((Perl_debug_log, "Shifting error token, ")); |
747 | |
748 | *++yyvsp = yylval; |
9388183f |
749 | #ifdef DEBUGGING |
750 | *++yynsp ="<err>"; |
751 | #endif |
0de566d7 |
752 | |
753 | yystate = yyn; |
9388183f |
754 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
755 | |
0de566d7 |
756 | goto yynewstate; |
757 | |
758 | |
759 | /*-------------------------------------. |
760 | | yyacceptlab -- YYACCEPT comes here. | |
761 | `-------------------------------------*/ |
762 | yyacceptlab: |
763 | yyresult = 0; |
764 | goto yyreturn; |
765 | |
766 | /*-----------------------------------. |
767 | | yyabortlab -- YYABORT comes here. | |
768 | `-----------------------------------*/ |
769 | yyabortlab: |
770 | yyresult = 1; |
771 | goto yyreturn; |
772 | |
773 | /*----------------------------------------------. |
774 | | yyoverflowlab -- parser overflow comes here. | |
775 | `----------------------------------------------*/ |
776 | yyoverflowlab: |
777 | yyerror ("parser stack overflow"); |
778 | yyresult = 2; |
779 | /* Fall through. */ |
780 | |
781 | yyreturn: |
782 | |
c86b7e91 |
783 | LEAVE; /* force stack free before we return */ |
e1f15930 |
784 | |
0de566d7 |
785 | return yyresult; |
e1f15930 |
786 | } |
66610fdd |
787 | |
788 | /* |
789 | * Local variables: |
790 | * c-indentation-style: bsd |
791 | * c-basic-offset: 4 |
792 | * indent-tabs-mode: t |
793 | * End: |
794 | * |
37442d52 |
795 | * ex: set ts=8 sts=4 sw=4 noet: |
796 | */ |