Commit | Line | Data |
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0de566d7 DM |
1 | /* perly.c |
2 | * | |
54ca4ee7 | 3 | * Copyright (c) 2004, 2005, 2006 Larry Wall and others |
0de566d7 DM |
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 DM |
10 | * and edited; the bits that are dependent on perly.y are now |
11 | * #included from the files perly.tab and perly.act. | |
0de566d7 DM |
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 DM |
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 DM |
23 | * but which includes extra code for dumping the parse tree. |
24 | * This is controlled by the PERL_IN_MADLY_C define. | |
0de566d7 DM |
25 | */ |
26 | ||
27 | ||
3797f23d | 28 | |
0de566d7 DM |
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 DM |
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 DM |
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 DM |
48 | /* contains all the parser state tables; auto-generated from perly.y */ |
49 | #include "perly.tab" | |
0de566d7 DM |
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 DM |
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 DM |
103 | do { \ |
104 | if (yydebug) { \ | |
105 | YYFPRINTF (Perl_debug_log, "%s ", Title); \ | |
356f4fed | 106 | yysymprint (aTHX_ Perl_debug_log, Token, Value); \ |
0de566d7 DM |
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 DM |
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 DM |
124 | # endif |
125 | } | |
126 | else | |
127 | YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); | |
128 | ||
0de566d7 DM |
129 | YYFPRINTF (yyoutput, ")"); |
130 | } | |
131 | ||
132 | ||
9388183f CB |
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 DM |
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 CB |
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 DM |
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 DM |
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 DM |
159 | for (i=0; i < count; i++) { |
160 | if (yy_is_opval[yystos[yyss[start+i]]]) { | |
161 | PerlIO_printf(Perl_debug_log, " %8.8s", | |
162 | yyvs[start+i].opval | |
163 | ? PL_op_name[yyvs[start+i].opval->op_type] | |
164 | : "NULL" | |
165 | ); | |
166 | } | |
167 | else | |
168 | PerlIO_printf(Perl_debug_log, " %8"UVxf, (UV)yyvs[start+i].ival); | |
169 | } | |
9388183f | 170 | PerlIO_printf(Perl_debug_log, "\n\n"); |
0de566d7 DM |
171 | } |
172 | ||
9388183f | 173 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) \ |
0de566d7 | 174 | do { \ |
9388183f CB |
175 | if (yydebug && DEBUG_v_TEST) \ |
176 | yy_stack_print (aTHX_ (yyss), (yyssp), (yyvs), (yyns)); \ | |
0de566d7 DM |
177 | } while (0) |
178 | ||
09bef843 | 179 | |
0de566d7 DM |
180 | /*------------------------------------------------. |
181 | | Report that the YYRULE is going to be reduced. | | |
182 | `------------------------------------------------*/ | |
183 | ||
184 | static void | |
185 | yy_reduce_print (pTHX_ int yyrule) | |
186 | { | |
187 | int yyi; | |
df35152e | 188 | const unsigned int yylineno = yyrline[yyrule]; |
0de566d7 DM |
189 | YYFPRINTF (Perl_debug_log, "Reducing stack by rule %d (line %u), ", |
190 | yyrule - 1, yylineno); | |
191 | /* Print the symbols being reduced, and their result. */ | |
192 | for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) | |
193 | YYFPRINTF (Perl_debug_log, "%s ", yytname [yyrhs[yyi]]); | |
194 | YYFPRINTF (Perl_debug_log, "-> %s\n", yytname [yyr1[yyrule]]); | |
195 | } | |
196 | ||
197 | # define YY_REDUCE_PRINT(Rule) \ | |
198 | do { \ | |
199 | if (yydebug) \ | |
200 | yy_reduce_print (aTHX_ Rule); \ | |
201 | } while (0) | |
202 | ||
203 | #else /* !DEBUGGING */ | |
204 | # define YYDPRINTF(Args) | |
9388183f CB |
205 | # define YYDSYMPRINTF(Title, Token, Value) |
206 | # define YY_STACK_PRINT(yyss, yyssp, yyvs, yyns) | |
0de566d7 DM |
207 | # define YY_REDUCE_PRINT(Rule) |
208 | #endif /* !DEBUGGING */ | |
209 | ||
210 | ||
211 | /* YYINITDEPTH -- initial size of the parser's stacks. */ | |
212 | #ifndef YYINITDEPTH | |
213 | # define YYINITDEPTH 200 | |
09bef843 | 214 | #endif |
09bef843 | 215 | |
0de566d7 DM |
216 | |
217 | #if YYERROR_VERBOSE | |
218 | # ifndef yystrlen | |
219 | # if defined (__GLIBC__) && defined (_STRING_H) | |
220 | # define yystrlen strlen | |
221 | # else | |
222 | /* Return the length of YYSTR. */ | |
223 | static YYSIZE_T | |
224 | yystrlen (const char *yystr) | |
225 | { | |
226 | register const char *yys = yystr; | |
227 | ||
228 | while (*yys++ != '\0') | |
229 | continue; | |
230 | ||
231 | return yys - yystr - 1; | |
232 | } | |
233 | # endif | |
234 | # endif | |
235 | ||
236 | # ifndef yystpcpy | |
237 | # if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) | |
238 | # define yystpcpy stpcpy | |
239 | # else | |
240 | /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in | |
241 | YYDEST. */ | |
242 | static char * | |
243 | yystpcpy (pTHX_ char *yydest, const char *yysrc) | |
244 | { | |
245 | register char *yyd = yydest; | |
246 | register const char *yys = yysrc; | |
247 | ||
248 | while ((*yyd++ = *yys++) != '\0') | |
249 | continue; | |
250 | ||
251 | return yyd - 1; | |
252 | } | |
253 | # endif | |
254 | # endif | |
255 | ||
256 | #endif /* !YYERROR_VERBOSE */ | |
257 | ||
0de566d7 DM |
258 | /*----------. |
259 | | yyparse. | | |
260 | `----------*/ | |
261 | ||
79072805 | 262 | int |
bc463c31 DM |
263 | #ifdef PERL_IN_MADLY_C |
264 | Perl_madparse (pTHX) | |
265 | #else | |
0de566d7 | 266 | Perl_yyparse (pTHX) |
bc463c31 | 267 | #endif |
79072805 | 268 | { |
97aff369 | 269 | dVAR; |
0de566d7 DM |
270 | int yychar; /* The lookahead symbol. */ |
271 | YYSTYPE yylval; /* The semantic value of the lookahead symbol. */ | |
272 | int yynerrs; /* Number of syntax errors so far. */ | |
273 | register int yystate; | |
274 | register int yyn; | |
275 | int yyresult; | |
276 | ||
277 | /* Number of tokens to shift before error messages enabled. */ | |
278 | int yyerrstatus; | |
279 | /* Lookahead token as an internal (translated) token number. */ | |
280 | int yytoken = 0; | |
281 | ||
282 | /* two stacks and their tools: | |
a0288114 AL |
283 | yyss: related to states, |
284 | yyvs: related to semantic values, | |
0de566d7 DM |
285 | |
286 | Refer to the stacks thru separate pointers, to allow yyoverflow | |
287 | to reallocate them elsewhere. */ | |
288 | ||
289 | /* The state stack. */ | |
290 | short *yyss; | |
93a17b20 | 291 | register short *yyssp; |
0de566d7 DM |
292 | |
293 | /* The semantic value stack. */ | |
294 | YYSTYPE *yyvs; | |
93a17b20 | 295 | register YYSTYPE *yyvsp; |
a0d0e21e | 296 | |
0de566d7 DM |
297 | /* for ease of re-allocation and automatic freeing, have two SVs whose |
298 | * SvPVX points to the stacks */ | |
299 | SV *yyss_sv, *yyvs_sv; | |
300 | ||
9388183f CB |
301 | #ifdef DEBUGGING |
302 | /* maintain also a stack of token/rule names for debugging with -Dpv */ | |
e1ec3a88 | 303 | const char **yyns, **yynsp; |
9388183f CB |
304 | SV *yyns_sv; |
305 | # define YYPOPSTACK (yyvsp--, yyssp--, yynsp--) | |
306 | #else | |
307 | # define YYPOPSTACK (yyvsp--, yyssp--) | |
308 | #endif | |
309 | ||
0de566d7 DM |
310 | |
311 | YYSIZE_T yystacksize = YYINITDEPTH; | |
312 | ||
313 | /* The variables used to return semantic value and location from the | |
314 | action routines. */ | |
315 | YYSTYPE yyval; | |
316 | ||
317 | ||
318 | /* When reducing, the number of symbols on the RHS of the reduced | |
319 | rule. */ | |
320 | int yylen; | |
321 | ||
bc463c31 DM |
322 | #ifndef PERL_IN_MADLY_C |
323 | # ifdef PERL_MAD | |
00e74f14 NC |
324 | if (PL_madskills) |
325 | return madparse(); | |
bc463c31 | 326 | # endif |
81d86705 NC |
327 | #endif |
328 | ||
0de566d7 DM |
329 | YYDPRINTF ((Perl_debug_log, "Starting parse\n")); |
330 | ||
0de566d7 | 331 | ENTER; /* force stack free before we return */ |
12fbd33b DM |
332 | SAVEVPTR(PL_yycharp); |
333 | SAVEVPTR(PL_yylvalp); | |
334 | PL_yycharp = &yychar; /* so PL_yyerror() can access it */ | |
335 | PL_yylvalp = &yylval; /* so various functions in toke.c can access it */ | |
336 | ||
561b68a9 SH |
337 | yyss_sv = newSV(YYINITDEPTH * sizeof(short)); |
338 | yyvs_sv = newSV(YYINITDEPTH * sizeof(YYSTYPE)); | |
0de566d7 DM |
339 | SAVEFREESV(yyss_sv); |
340 | SAVEFREESV(yyvs_sv); | |
341 | yyss = (short *) SvPVX(yyss_sv); | |
342 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); | |
9388183f CB |
343 | /* note that elements zero of yyvs and yyns are not used */ |
344 | yyssp = yyss; | |
345 | yyvsp = yyvs; | |
346 | #ifdef DEBUGGING | |
561b68a9 | 347 | yyns_sv = newSV(YYINITDEPTH * sizeof(char *)); |
9388183f | 348 | SAVEFREESV(yyns_sv); |
a28509cc | 349 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 | 350 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f CB |
351 | yynsp = yyns; |
352 | #endif | |
79072805 | 353 | |
0de566d7 DM |
354 | yystate = 0; |
355 | yyerrstatus = 0; | |
93a17b20 | 356 | yynerrs = 0; |
0de566d7 DM |
357 | yychar = YYEMPTY; /* Cause a token to be read. */ |
358 | ||
9388183f | 359 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
0de566d7 DM |
360 | |
361 | goto yysetstate; | |
362 | ||
363 | /*------------------------------------------------------------. | |
364 | | yynewstate -- Push a new state, which is found in yystate. | | |
365 | `------------------------------------------------------------*/ | |
366 | yynewstate: | |
367 | /* In all cases, when you get here, the value and location stacks | |
368 | have just been pushed. so pushing a state here evens the stacks. | |
369 | */ | |
370 | yyssp++; | |
371 | ||
372 | yysetstate: | |
373 | *yyssp = yystate; | |
374 | ||
375 | if (yyss + yystacksize - 1 <= yyssp) { | |
376 | /* Get the current used size of the three stacks, in elements. */ | |
df35152e | 377 | const YYSIZE_T yysize = yyssp - yyss + 1; |
0de566d7 DM |
378 | |
379 | /* Extend the stack our own way. */ | |
380 | if (YYMAXDEPTH <= yystacksize) | |
381 | goto yyoverflowlab; | |
382 | yystacksize *= 2; | |
383 | if (YYMAXDEPTH < yystacksize) | |
384 | yystacksize = YYMAXDEPTH; | |
385 | ||
386 | SvGROW(yyss_sv, yystacksize * sizeof(short)); | |
387 | SvGROW(yyvs_sv, yystacksize * sizeof(YYSTYPE)); | |
388 | yyss = (short *) SvPVX(yyss_sv); | |
389 | yyvs = (YYSTYPE *) SvPVX(yyvs_sv); | |
9388183f CB |
390 | #ifdef DEBUGGING |
391 | SvGROW(yyns_sv, yystacksize * sizeof(char *)); | |
a28509cc | 392 | /* XXX This seems strange to cast char * to char ** */ |
94a11853 | 393 | yyns = (const char **) SvPVX(yyns_sv); |
9388183f CB |
394 | if (! yyns) |
395 | goto yyoverflowlab; | |
396 | yynsp = yyns + yysize - 1; | |
397 | #endif | |
0de566d7 DM |
398 | if (!yyss || ! yyvs) |
399 | goto yyoverflowlab; | |
400 | ||
401 | yyssp = yyss + yysize - 1; | |
402 | yyvsp = yyvs + yysize - 1; | |
403 | ||
404 | ||
405 | YYDPRINTF ((Perl_debug_log, "Stack size increased to %lu\n", | |
406 | (unsigned long int) yystacksize)); | |
407 | ||
408 | if (yyss + yystacksize - 1 <= yyssp) | |
409 | YYABORT; | |
93a17b20 | 410 | } |
0de566d7 | 411 | |
0de566d7 DM |
412 | goto yybackup; |
413 | ||
414 | /*-----------. | |
415 | | yybackup. | | |
416 | `-----------*/ | |
417 | yybackup: | |
418 | ||
419 | /* Do appropriate processing given the current state. */ | |
420 | /* Read a lookahead token if we need one and don't already have one. */ | |
421 | /* yyresume: */ | |
422 | ||
423 | /* First try to decide what to do without reference to lookahead token. */ | |
424 | ||
425 | yyn = yypact[yystate]; | |
426 | if (yyn == YYPACT_NINF) | |
427 | goto yydefault; | |
428 | ||
429 | /* Not known => get a lookahead token if don't already have one. */ | |
430 | ||
431 | /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ | |
432 | if (yychar == YYEMPTY) { | |
433 | YYDPRINTF ((Perl_debug_log, "Reading a token: ")); | |
f05e27e5 | 434 | #ifdef PERL_IN_MADLY_C |
00e74f14 | 435 | yychar = PL_madskills ? madlex() : yylex(); |
f05e27e5 | 436 | #else |
12fbd33b | 437 | yychar = yylex(); |
81d86705 | 438 | #endif |
bc463c31 | 439 | |
12fbd33b DM |
440 | # ifdef EBCDIC |
441 | if (yychar >= 0 && yychar < 255) { | |
442 | yychar = NATIVE_TO_ASCII(yychar); | |
443 | } | |
444 | # endif | |
0de566d7 DM |
445 | } |
446 | ||
447 | if (yychar <= YYEOF) { | |
448 | yychar = yytoken = YYEOF; | |
449 | YYDPRINTF ((Perl_debug_log, "Now at end of input.\n")); | |
93a17b20 | 450 | } |
0de566d7 DM |
451 | else { |
452 | yytoken = YYTRANSLATE (yychar); | |
9388183f | 453 | YYDSYMPRINTF ("Next token is", yytoken, &yylval); |
93a17b20 | 454 | } |
771df094 | 455 | |
0de566d7 DM |
456 | /* If the proper action on seeing token YYTOKEN is to reduce or to |
457 | detect an error, take that action. */ | |
458 | yyn += yytoken; | |
459 | if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) | |
460 | goto yydefault; | |
461 | yyn = yytable[yyn]; | |
462 | if (yyn <= 0) { | |
463 | if (yyn == 0 || yyn == YYTABLE_NINF) | |
464 | goto yyerrlab; | |
465 | yyn = -yyn; | |
466 | goto yyreduce; | |
467 | } | |
7b57b0ea | 468 | |
0de566d7 DM |
469 | if (yyn == YYFINAL) |
470 | YYACCEPT; | |
771df094 | 471 | |
0de566d7 DM |
472 | /* Shift the lookahead token. */ |
473 | YYDPRINTF ((Perl_debug_log, "Shifting token %s, ", yytname[yytoken])); | |
474 | ||
475 | /* Discard the token being shifted unless it is eof. */ | |
476 | if (yychar != YYEOF) | |
477 | yychar = YYEMPTY; | |
478 | ||
479 | *++yyvsp = yylval; | |
9388183f | 480 | #ifdef DEBUGGING |
e1ec3a88 | 481 | *++yynsp = (const char *)(yytname[yytoken]); |
9388183f | 482 | #endif |
0de566d7 DM |
483 | |
484 | ||
485 | /* Count tokens shifted since error; after three, turn off error | |
486 | status. */ | |
487 | if (yyerrstatus) | |
488 | yyerrstatus--; | |
489 | ||
490 | yystate = yyn; | |
9388183f CB |
491 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
492 | ||
0de566d7 DM |
493 | goto yynewstate; |
494 | ||
495 | ||
496 | /*-----------------------------------------------------------. | |
497 | | yydefault -- do the default action for the current state. | | |
498 | `-----------------------------------------------------------*/ | |
499 | yydefault: | |
500 | yyn = yydefact[yystate]; | |
501 | if (yyn == 0) | |
502 | goto yyerrlab; | |
503 | goto yyreduce; | |
504 | ||
505 | ||
506 | /*-----------------------------. | |
507 | | yyreduce -- Do a reduction. | | |
508 | `-----------------------------*/ | |
509 | yyreduce: | |
510 | /* yyn is the number of a rule to reduce with. */ | |
511 | yylen = yyr2[yyn]; | |
512 | ||
513 | /* If YYLEN is nonzero, implement the default value of the action: | |
a0288114 | 514 | "$$ = $1". |
0de566d7 DM |
515 | |
516 | Otherwise, the following line sets YYVAL to garbage. | |
517 | This behavior is undocumented and Bison | |
518 | users should not rely upon it. Assigning to YYVAL | |
519 | unconditionally makes the parser a bit smaller, and it avoids a | |
520 | GCC warning that YYVAL may be used uninitialized. */ | |
521 | yyval = yyvsp[1-yylen]; | |
522 | ||
523 | ||
524 | YY_REDUCE_PRINT (yyn); | |
525 | switch (yyn) { | |
526 | ||
0de566d7 DM |
527 | |
528 | #define dep() deprecate("\"do\" to call subroutines") | |
f05e27e5 | 529 | |
bc463c31 | 530 | #ifdef PERL_IN_MADLY_C |
f05e27e5 DM |
531 | # define IVAL(i) (i)->tk_lval.ival |
532 | # define PVAL(p) (p)->tk_lval.pval | |
533 | # define TOKEN_GETMAD(a,b,c) token_getmad((a),(b),(c)) | |
534 | # define TOKEN_FREE(a) token_free(a) | |
535 | # define OP_GETMAD(a,b,c) op_getmad((a),(b),(c)) | |
536 | # define IF_MAD(a,b) (a) | |
537 | # define DO_MAD(a) a | |
538 | # define MAD | |
bc463c31 | 539 | #else |
f05e27e5 DM |
540 | # define IVAL(i) (i) |
541 | # define PVAL(p) (p) | |
542 | # define TOKEN_GETMAD(a,b,c) | |
543 | # define TOKEN_FREE(a) | |
544 | # define OP_GETMAD(a,b,c) | |
545 | # define IF_MAD(a,b) (b) | |
546 | # define DO_MAD(a) | |
547 | # undef MAD | |
bc463c31 | 548 | #endif |
7b57b0ea | 549 | |
f05e27e5 DM |
550 | /* contains all the rule actions; auto-generated from perly.y */ |
551 | #include "perly.act" | |
552 | ||
93a17b20 | 553 | } |
0de566d7 DM |
554 | |
555 | yyvsp -= yylen; | |
556 | yyssp -= yylen; | |
9388183f CB |
557 | #ifdef DEBUGGING |
558 | yynsp -= yylen; | |
559 | #endif | |
0de566d7 | 560 | |
0de566d7 DM |
561 | |
562 | *++yyvsp = yyval; | |
9388183f | 563 | #ifdef DEBUGGING |
e1ec3a88 | 564 | *++yynsp = (const char *)(yytname [yyr1[yyn]]); |
9388183f | 565 | #endif |
0de566d7 | 566 | |
a0288114 | 567 | /* Now shift the result of the reduction. Determine what state |
0de566d7 DM |
568 | that goes to, based on the state we popped back to and the rule |
569 | number reduced by. */ | |
570 | ||
571 | yyn = yyr1[yyn]; | |
572 | ||
573 | yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; | |
574 | if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) | |
575 | yystate = yytable[yystate]; | |
93a17b20 | 576 | else |
0de566d7 DM |
577 | yystate = yydefgoto[yyn - YYNTOKENS]; |
578 | ||
9388183f CB |
579 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
580 | ||
581 | #ifdef DEBUGGING | |
582 | /* tmp push yystate for stack print; this is normally pushed later in | |
583 | * yynewstate */ | |
584 | yyssp++; | |
585 | *yyssp = yystate; | |
586 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); | |
587 | yyssp--; | |
588 | #endif | |
589 | ||
0de566d7 DM |
590 | goto yynewstate; |
591 | ||
592 | ||
593 | /*------------------------------------. | |
594 | | yyerrlab -- here on detecting error | | |
595 | `------------------------------------*/ | |
596 | yyerrlab: | |
597 | /* If not already recovering from an error, report this error. */ | |
598 | if (!yyerrstatus) { | |
599 | ++yynerrs; | |
600 | #if YYERROR_VERBOSE | |
601 | yyn = yypact[yystate]; | |
602 | ||
603 | if (YYPACT_NINF < yyn && yyn < YYLAST) { | |
604 | YYSIZE_T yysize = 0; | |
df35152e | 605 | const int yytype = YYTRANSLATE (yychar); |
0de566d7 DM |
606 | char *yymsg; |
607 | int yyx, yycount; | |
608 | ||
609 | yycount = 0; | |
610 | /* Start YYX at -YYN if negative to avoid negative indexes in | |
611 | YYCHECK. */ | |
612 | for (yyx = yyn < 0 ? -yyn : 0; | |
613 | yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) | |
614 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) | |
615 | yysize += yystrlen (yytname[yyx]) + 15, yycount++; | |
616 | yysize += yystrlen ("syntax error, unexpected ") + 1; | |
617 | yysize += yystrlen (yytname[yytype]); | |
4b711db3 | 618 | Newx(yymsg, yysize, char *); |
0de566d7 | 619 | if (yymsg != 0) { |
df35152e | 620 | const char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); |
0de566d7 DM |
621 | yyp = yystpcpy (yyp, yytname[yytype]); |
622 | ||
623 | if (yycount < 5) { | |
624 | yycount = 0; | |
625 | for (yyx = yyn < 0 ? -yyn : 0; | |
626 | yyx < (int) (sizeof (yytname) / sizeof (char *)); | |
627 | yyx++) | |
628 | { | |
629 | if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) { | |
630 | const char *yyq = ! yycount ? | |
631 | ", expecting " : " or "; | |
632 | yyp = yystpcpy (yyp, yyq); | |
633 | yyp = yystpcpy (yyp, yytname[yyx]); | |
634 | yycount++; | |
635 | } | |
636 | } | |
ecb2f335 | 637 | } |
0de566d7 DM |
638 | yyerror (yymsg); |
639 | YYSTACK_FREE (yymsg); | |
640 | } | |
641 | else | |
642 | yyerror ("syntax error; also virtual memory exhausted"); | |
643 | } | |
644 | else | |
645 | #endif /* YYERROR_VERBOSE */ | |
646 | yyerror ("syntax error"); | |
93a17b20 | 647 | } |
0de566d7 DM |
648 | |
649 | ||
650 | if (yyerrstatus == 3) { | |
651 | /* If just tried and failed to reuse lookahead token after an | |
652 | error, discard it. */ | |
653 | ||
654 | /* Return failure if at end of input. */ | |
655 | if (yychar == YYEOF) { | |
656 | /* Pop the error token. */ | |
657 | YYPOPSTACK; | |
658 | /* Pop the rest of the stack. */ | |
659 | while (yyss < yyssp) { | |
9388183f | 660 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0539ab63 DM |
661 | if (yy_is_opval[yystos[*yyssp]]) { |
662 | YYDPRINTF ((Perl_debug_log, "(freeing op)\n")); | |
663 | op_free(yyvsp->opval); | |
664 | } | |
0de566d7 DM |
665 | YYPOPSTACK; |
666 | } | |
667 | YYABORT; | |
668 | } | |
669 | ||
9388183f | 670 | YYDSYMPRINTF ("Error: discarding", yytoken, &yylval); |
0de566d7 DM |
671 | yychar = YYEMPTY; |
672 | ||
93a17b20 | 673 | } |
0de566d7 DM |
674 | |
675 | /* Else will try to reuse lookahead token after shifting the error | |
676 | token. */ | |
677 | goto yyerrlab1; | |
678 | ||
679 | ||
680 | /*----------------------------------------------------. | |
681 | | yyerrlab1 -- error raised explicitly by an action. | | |
682 | `----------------------------------------------------*/ | |
683 | yyerrlab1: | |
684 | yyerrstatus = 3; /* Each real token shifted decrements this. */ | |
685 | ||
686 | for (;;) { | |
687 | yyn = yypact[yystate]; | |
688 | if (yyn != YYPACT_NINF) { | |
689 | yyn += YYTERROR; | |
690 | if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { | |
691 | yyn = yytable[yyn]; | |
692 | if (0 < yyn) | |
693 | break; | |
694 | } | |
695 | } | |
696 | ||
697 | /* Pop the current state because it cannot handle the error token. */ | |
698 | if (yyssp == yyss) | |
699 | YYABORT; | |
700 | ||
9388183f | 701 | YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp); |
0539ab63 DM |
702 | if (yy_is_opval[yystos[*yyssp]]) { |
703 | YYDPRINTF ((Perl_debug_log, "(freeing op)\n")); | |
704 | op_free(yyvsp->opval); | |
705 | } | |
0de566d7 | 706 | yyvsp--; |
9388183f CB |
707 | #ifdef DEBUGGING |
708 | yynsp--; | |
709 | #endif | |
0de566d7 DM |
710 | yystate = *--yyssp; |
711 | ||
9388183f | 712 | YY_STACK_PRINT (yyss, yyssp, yyvs, yyns); |
93a17b20 | 713 | } |
0de566d7 DM |
714 | |
715 | if (yyn == YYFINAL) | |
716 | YYACCEPT; | |
717 | ||
718 | YYDPRINTF ((Perl_debug_log, "Shifting error token, ")); | |
719 | ||
720 | *++yyvsp = yylval; | |
9388183f CB |
721 | #ifdef DEBUGGING |
722 | *++yynsp ="<err>"; | |
723 | #endif | |
0de566d7 DM |
724 | |
725 | yystate = yyn; | |
9388183f CB |
726 | YYDPRINTF ((Perl_debug_log, "Entering state %d\n", yystate)); |
727 | ||
0de566d7 DM |
728 | goto yynewstate; |
729 | ||
730 | ||
731 | /*-------------------------------------. | |
732 | | yyacceptlab -- YYACCEPT comes here. | | |
733 | `-------------------------------------*/ | |
734 | yyacceptlab: | |
735 | yyresult = 0; | |
736 | goto yyreturn; | |
737 | ||
738 | /*-----------------------------------. | |
739 | | yyabortlab -- YYABORT comes here. | | |
740 | `-----------------------------------*/ | |
741 | yyabortlab: | |
742 | yyresult = 1; | |
743 | goto yyreturn; | |
744 | ||
745 | /*----------------------------------------------. | |
746 | | yyoverflowlab -- parser overflow comes here. | | |
747 | `----------------------------------------------*/ | |
748 | yyoverflowlab: | |
749 | yyerror ("parser stack overflow"); | |
750 | yyresult = 2; | |
751 | /* Fall through. */ | |
752 | ||
753 | yyreturn: | |
754 | ||
c86b7e91 | 755 | LEAVE; /* force stack free before we return */ |
e1f15930 | 756 | |
0de566d7 | 757 | return yyresult; |
e1f15930 | 758 | } |
66610fdd RGS |
759 | |
760 | /* | |
761 | * Local variables: | |
762 | * c-indentation-style: bsd | |
763 | * c-basic-offset: 4 | |
764 | * indent-tabs-mode: t | |
765 | * End: | |
766 | * | |
37442d52 RGS |
767 | * ex: set ts=8 sts=4 sw=4 noet: |
768 | */ |