source: mainline/uspace/app/ash/arith.c@ 8ccd2ea

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8ccd2ea was c28a023, checked in by Josef Cejka <malyzelenyhnus@…>, 17 years ago

Initial commit of ash shell.
It cannot be compiled yet.
  • Property mode set to 100644
File size: 51.0 KB
RevLine 
[c28a023]1/* A Bison parser, made by GNU Bison 2.3. */
2
3/* Skeleton implementation for Bison's Yacc-like parsers in C
4
5 Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
6 Free Software Foundation, Inc.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
22
23/* As a special exception, you may create a larger work that contains
24 part or all of the Bison parser skeleton and distribute that work
25 under terms of your choice, so long as that work isn't itself a
26 parser generator using the skeleton or a modified version thereof
27 as a parser skeleton. Alternatively, if you modify or redistribute
28 the parser skeleton itself, you may (at your option) remove this
29 special exception, which will cause the skeleton and the resulting
30 Bison output files to be licensed under the GNU General Public
31 License without this special exception.
32
33 This special exception was added by the Free Software Foundation in
34 version 2.2 of Bison. */
35
36/* C LALR(1) parser skeleton written by Richard Stallman, by
37 simplifying the original so-called "semantic" parser. */
38
39/* All symbols defined below should begin with yy or YY, to avoid
40 infringing on user name space. This should be done even for local
41 variables, as they might otherwise be expanded by user macros.
42 There are some unavoidable exceptions within include files to
43 define necessary library symbols; they are noted "INFRINGES ON
44 USER NAME SPACE" below. */
45
46/* Identify Bison output. */
47#define YYBISON 1
48
49/* Bison version. */
50#define YYBISON_VERSION "2.3"
51
52/* Skeleton name. */
53#define YYSKELETON_NAME "yacc.c"
54
55/* Pure parsers. */
56#define YYPURE 0
57
58/* Using locations. */
59#define YYLSP_NEEDED 0
60
61
62
63/* Tokens. */
64#ifndef YYTOKENTYPE
65# define YYTOKENTYPE
66 /* Put the tokens into the symbol table, so that GDB and other debuggers
67 know about them. */
68 enum yytokentype {
69 ARITH_NUM = 258,
70 ARITH_LPAREN = 259,
71 ARITH_RPAREN = 260,
72 ARITH_OR = 261,
73 ARITH_AND = 262,
74 ARITH_BOR = 263,
75 ARITH_BXOR = 264,
76 ARITH_BAND = 265,
77 ARITH_NE = 266,
78 ARITH_EQ = 267,
79 ARITH_LE = 268,
80 ARITH_GE = 269,
81 ARITH_GT = 270,
82 ARITH_LT = 271,
83 ARITH_RSHIFT = 272,
84 ARITH_LSHIFT = 273,
85 ARITH_SUB = 274,
86 ARITH_ADD = 275,
87 ARITH_REM = 276,
88 ARITH_DIV = 277,
89 ARITH_MUL = 278,
90 ARITH_BNOT = 279,
91 ARITH_NOT = 280,
92 ARITH_UNARYPLUS = 281,
93 ARITH_UNARYMINUS = 282
94 };
95#endif
96/* Tokens. */
97#define ARITH_NUM 258
98#define ARITH_LPAREN 259
99#define ARITH_RPAREN 260
100#define ARITH_OR 261
101#define ARITH_AND 262
102#define ARITH_BOR 263
103#define ARITH_BXOR 264
104#define ARITH_BAND 265
105#define ARITH_NE 266
106#define ARITH_EQ 267
107#define ARITH_LE 268
108#define ARITH_GE 269
109#define ARITH_GT 270
110#define ARITH_LT 271
111#define ARITH_RSHIFT 272
112#define ARITH_LSHIFT 273
113#define ARITH_SUB 274
114#define ARITH_ADD 275
115#define ARITH_REM 276
116#define ARITH_DIV 277
117#define ARITH_MUL 278
118#define ARITH_BNOT 279
119#define ARITH_NOT 280
120#define ARITH_UNARYPLUS 281
121#define ARITH_UNARYMINUS 282
122
123
124
125
126/* Copy the first part of user declarations. */
127#line 1 "arith.y"
128
129/* $NetBSD: arith.y,v 1.13 1999/07/09 03:05:49 christos Exp $ */
130
131/*-
132 * Copyright (c) 1993
133 * The Regents of the University of California. All rights reserved.
134 *
135 * This code is derived from software contributed to Berkeley by
136 * Kenneth Almquist.
137 *
138 * Redistribution and use in source and binary forms, with or without
139 * modification, are permitted provided that the following conditions
140 * are met:
141 * 1. Redistributions of source code must retain the above copyright
142 * notice, this list of conditions and the following disclaimer.
143 * 2. Redistributions in binary form must reproduce the above copyright
144 * notice, this list of conditions and the following disclaimer in the
145 * documentation and/or other materials provided with the distribution.
146 * 3. All advertising materials mentioning features or use of this software
147 * must display the following acknowledgement:
148 * This product includes software developed by the University of
149 * California, Berkeley and its contributors.
150 * 4. Neither the name of the University nor the names of its contributors
151 * may be used to endorse or promote products derived from this software
152 * without specific prior written permission.
153 *
154 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
155 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
156 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
157 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
158 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
159 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
160 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
161 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
162 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
163 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
164 * SUCH DAMAGE.
165 */
166
167#include <sys/cdefs.h>
168#ifndef lint
169#if 0
170static char sccsid[] = "@(#)arith.y 8.3 (Berkeley) 5/4/95";
171#else
172__RCSID("$NetBSD: arith.y,v 1.13 1999/07/09 03:05:49 christos Exp $");
173#endif
174#endif /* not lint */
175
176#include <stdlib.h>
177#include "expand.h"
178#include "shell.h"
179#include "error.h"
180#include "output.h"
181#include "memalloc.h"
182
183const char *arith_buf, *arith_startbuf;
184
185void yyerror (const char *);
186int yyparse (void);
187#ifdef TESTARITH
188int main (int , char *[]);
189int error (char *);
190#endif
191
192int
193arith(s)
194 const char *s;
195{
196 long result;
197
198 arith_buf = arith_startbuf = s;
199
200 INTOFF;
201 result = yyparse();
202 arith_lex_reset(); /* reprime lex */
203 INTON;
204
205 return (result);
206}
207
208
209/*
210 * The exp(1) builtin.
211 */
212int
213expcmd(argc, argv)
214 int argc;
215 char **argv;
216{
217 const char *p;
218 char *concat;
219 char **ap;
220 long i;
221
222 if (argc > 1) {
223 p = argv[1];
224 if (argc > 2) {
225 /*
226 * concatenate arguments
227 */
228 STARTSTACKSTR(concat);
229 ap = argv + 2;
230 for (;;) {
231 while (*p)
232 STPUTC(*p++, concat);
233 if ((p = *ap++) == NULL)
234 break;
235 STPUTC(' ', concat);
236 }
237 STPUTC('\0', concat);
238 p = grabstackstr(concat);
239 }
240 } else
241 p = "";
242
243 i = arith(p);
244
245 out1fmt("%ld\n", i);
246 return (! i);
247}
248
249/*************************/
250#ifdef TEST_ARITH
251#include <stdio.h>
252main(argc, argv)
253 char *argv[];
254{
255 printf("%d\n", exp(argv[1]));
256}
257error(s)
258 char *s;
259{
260 fprintf(stderr, "exp: %s\n", s);
261 exit(1);
262}
263#endif
264
265
266/* Enabling traces. */
267#ifndef YYDEBUG
268# define YYDEBUG 0
269#endif
270
271/* Enabling verbose error messages. */
272#ifdef YYERROR_VERBOSE
273# undef YYERROR_VERBOSE
274# define YYERROR_VERBOSE 1
275#else
276# define YYERROR_VERBOSE 0
277#endif
278
279/* Enabling the token table. */
280#ifndef YYTOKEN_TABLE
281# define YYTOKEN_TABLE 0
282#endif
283
284#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
285typedef int YYSTYPE;
286# define yystype YYSTYPE /* obsolescent; will be withdrawn */
287# define YYSTYPE_IS_DECLARED 1
288# define YYSTYPE_IS_TRIVIAL 1
289#endif
290
291
292
293/* Copy the second part of user declarations. */
294
295
296/* Line 216 of yacc.c. */
297#line 298 "y.tab.c"
298
299#ifdef short
300# undef short
301#endif
302
303#ifdef YYTYPE_UINT8
304typedef YYTYPE_UINT8 yytype_uint8;
305#else
306typedef unsigned char yytype_uint8;
307#endif
308
309#ifdef YYTYPE_INT8
310typedef YYTYPE_INT8 yytype_int8;
311#elif (defined __STDC__ || defined __C99__FUNC__ \
312 || defined __cplusplus || defined _MSC_VER)
313typedef signed char yytype_int8;
314#else
315typedef short int yytype_int8;
316#endif
317
318#ifdef YYTYPE_UINT16
319typedef YYTYPE_UINT16 yytype_uint16;
320#else
321typedef unsigned short int yytype_uint16;
322#endif
323
324#ifdef YYTYPE_INT16
325typedef YYTYPE_INT16 yytype_int16;
326#else
327typedef short int yytype_int16;
328#endif
329
330#ifndef YYSIZE_T
331# ifdef __SIZE_TYPE__
332# define YYSIZE_T __SIZE_TYPE__
333# elif defined size_t
334# define YYSIZE_T size_t
335# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
336 || defined __cplusplus || defined _MSC_VER)
337# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
338# define YYSIZE_T size_t
339# else
340# define YYSIZE_T unsigned int
341# endif
342#endif
343
344#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
345
346#ifndef YY_
347# if YYENABLE_NLS
348# if ENABLE_NLS
349# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
350# define YY_(msgid) dgettext ("bison-runtime", msgid)
351# endif
352# endif
353# ifndef YY_
354# define YY_(msgid) msgid
355# endif
356#endif
357
358/* Suppress unused-variable warnings by "using" E. */
359#if ! defined lint || defined __GNUC__
360# define YYUSE(e) ((void) (e))
361#else
362# define YYUSE(e) /* empty */
363#endif
364
365/* Identity function, used to suppress warnings about constant conditions. */
366#ifndef lint
367# define YYID(n) (n)
368#else
369#if (defined __STDC__ || defined __C99__FUNC__ \
370 || defined __cplusplus || defined _MSC_VER)
371static int
372YYID (int i)
373#else
374static int
375YYID (i)
376 int i;
377#endif
378{
379 return i;
380}
381#endif
382
383#if ! defined yyoverflow || YYERROR_VERBOSE
384
385/* The parser invokes alloca or malloc; define the necessary symbols. */
386
387# ifdef YYSTACK_USE_ALLOCA
388# if YYSTACK_USE_ALLOCA
389# ifdef __GNUC__
390# define YYSTACK_ALLOC __builtin_alloca
391# elif defined __BUILTIN_VA_ARG_INCR
392# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
393# elif defined _AIX
394# define YYSTACK_ALLOC __alloca
395# elif defined _MSC_VER
396# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
397# define alloca _alloca
398# else
399# define YYSTACK_ALLOC alloca
400# if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
401 || defined __cplusplus || defined _MSC_VER)
402# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
403# ifndef _STDLIB_H
404# define _STDLIB_H 1
405# endif
406# endif
407# endif
408# endif
409# endif
410
411# ifdef YYSTACK_ALLOC
412 /* Pacify GCC's `empty if-body' warning. */
413# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
414# ifndef YYSTACK_ALLOC_MAXIMUM
415 /* The OS might guarantee only one guard page at the bottom of the stack,
416 and a page size can be as small as 4096 bytes. So we cannot safely
417 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
418 to allow for a few compiler-allocated temporary stack slots. */
419# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
420# endif
421# else
422# define YYSTACK_ALLOC YYMALLOC
423# define YYSTACK_FREE YYFREE
424# ifndef YYSTACK_ALLOC_MAXIMUM
425# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
426# endif
427# if (defined __cplusplus && ! defined _STDLIB_H \
428 && ! ((defined YYMALLOC || defined malloc) \
429 && (defined YYFREE || defined free)))
430# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
431# ifndef _STDLIB_H
432# define _STDLIB_H 1
433# endif
434# endif
435# ifndef YYMALLOC
436# define YYMALLOC malloc
437# if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
438 || defined __cplusplus || defined _MSC_VER)
439void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
440# endif
441# endif
442# ifndef YYFREE
443# define YYFREE free
444# if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
445 || defined __cplusplus || defined _MSC_VER)
446void free (void *); /* INFRINGES ON USER NAME SPACE */
447# endif
448# endif
449# endif
450#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
451
452
453#if (! defined yyoverflow \
454 && (! defined __cplusplus \
455 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
456
457/* A type that is properly aligned for any stack member. */
458union yyalloc
459{
460 yytype_int16 yyss;
461 YYSTYPE yyvs;
462 };
463
464/* The size of the maximum gap between one aligned stack and the next. */
465# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
466
467/* The size of an array large to enough to hold all stacks, each with
468 N elements. */
469# define YYSTACK_BYTES(N) \
470 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
471 + YYSTACK_GAP_MAXIMUM)
472
473/* Copy COUNT objects from FROM to TO. The source and destination do
474 not overlap. */
475# ifndef YYCOPY
476# if defined __GNUC__ && 1 < __GNUC__
477# define YYCOPY(To, From, Count) \
478 __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
479# else
480# define YYCOPY(To, From, Count) \
481 do \
482 { \
483 YYSIZE_T yyi; \
484 for (yyi = 0; yyi < (Count); yyi++) \
485 (To)[yyi] = (From)[yyi]; \
486 } \
487 while (YYID (0))
488# endif
489# endif
490
491/* Relocate STACK from its old location to the new one. The
492 local variables YYSIZE and YYSTACKSIZE give the old and new number of
493 elements in the stack, and YYPTR gives the new location of the
494 stack. Advance YYPTR to a properly aligned location for the next
495 stack. */
496# define YYSTACK_RELOCATE(Stack) \
497 do \
498 { \
499 YYSIZE_T yynewbytes; \
500 YYCOPY (&yyptr->Stack, Stack, yysize); \
501 Stack = &yyptr->Stack; \
502 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
503 yyptr += yynewbytes / sizeof (*yyptr); \
504 } \
505 while (YYID (0))
506
507#endif
508
509/* YYFINAL -- State number of the termination state. */
510#define YYFINAL 14
511/* YYLAST -- Last index in YYTABLE. */
512#define YYLAST 170
513
514/* YYNTOKENS -- Number of terminals. */
515#define YYNTOKENS 28
516/* YYNNTS -- Number of nonterminals. */
517#define YYNNTS 3
518/* YYNRULES -- Number of rules. */
519#define YYNRULES 26
520/* YYNRULES -- Number of states. */
521#define YYNSTATES 52
522
523/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */
524#define YYUNDEFTOK 2
525#define YYMAXUTOK 282
526
527#define YYTRANSLATE(YYX) \
528 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
529
530/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
531static const yytype_uint8 yytranslate[] =
532{
533 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
534 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
535 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
536 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
537 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
538 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
539 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
540 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
541 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
542 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
543 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
544 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
545 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
546 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
547 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
548 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
549 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
550 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
551 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
552 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
553 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
554 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
555 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
556 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
557 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
558 2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
559 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
560 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
561 25, 26, 27
562};
563
564#if YYDEBUG
565/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
566 YYRHS. */
567static const yytype_uint8 yyprhs[] =
568{
569 0, 0, 3, 5, 9, 13, 17, 21, 25, 29,
570 33, 37, 41, 45, 49, 53, 57, 61, 65, 69,
571 73, 77, 81, 84, 87, 90, 93
572};
573
574/* YYRHS -- A `-1'-separated list of the rules' RHS. */
575static const yytype_int8 yyrhs[] =
576{
577 29, 0, -1, 30, -1, 4, 30, 5, -1, 30,
578 6, 30, -1, 30, 7, 30, -1, 30, 8, 30,
579 -1, 30, 9, 30, -1, 30, 10, 30, -1, 30,
580 12, 30, -1, 30, 15, 30, -1, 30, 14, 30,
581 -1, 30, 16, 30, -1, 30, 13, 30, -1, 30,
582 11, 30, -1, 30, 18, 30, -1, 30, 17, 30,
583 -1, 30, 20, 30, -1, 30, 19, 30, -1, 30,
584 23, 30, -1, 30, 22, 30, -1, 30, 21, 30,
585 -1, 25, 30, -1, 24, 30, -1, 19, 30, -1,
586 20, 30, -1, 3, -1
587};
588
589/* YYRLINE[YYN] -- source line where rule number YYN was defined. */
590static const yytype_uint8 yyrline[] =
591{
592 0, 153, 153, 159, 160, 161, 162, 163, 164, 165,
593 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
594 176, 181, 186, 187, 188, 189, 190
595};
596#endif
597
598#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
599/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
600 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
601static const char *const yytname[] =
602{
603 "$end", "error", "$undefined", "ARITH_NUM", "ARITH_LPAREN",
604 "ARITH_RPAREN", "ARITH_OR", "ARITH_AND", "ARITH_BOR", "ARITH_BXOR",
605 "ARITH_BAND", "ARITH_NE", "ARITH_EQ", "ARITH_LE", "ARITH_GE", "ARITH_GT",
606 "ARITH_LT", "ARITH_RSHIFT", "ARITH_LSHIFT", "ARITH_SUB", "ARITH_ADD",
607 "ARITH_REM", "ARITH_DIV", "ARITH_MUL", "ARITH_BNOT", "ARITH_NOT",
608 "ARITH_UNARYPLUS", "ARITH_UNARYMINUS", "$accept", "exp", "expr", 0
609};
610#endif
611
612# ifdef YYPRINT
613/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
614 token YYLEX-NUM. */
615static const yytype_uint16 yytoknum[] =
616{
617 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
618 265, 266, 267, 268, 269, 270, 271, 272, 273, 274,
619 275, 276, 277, 278, 279, 280, 281, 282
620};
621# endif
622
623/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
624static const yytype_uint8 yyr1[] =
625{
626 0, 28, 29, 30, 30, 30, 30, 30, 30, 30,
627 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
628 30, 30, 30, 30, 30, 30, 30
629};
630
631/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */
632static const yytype_uint8 yyr2[] =
633{
634 0, 2, 1, 3, 3, 3, 3, 3, 3, 3,
635 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
636 3, 3, 2, 2, 2, 2, 1
637};
638
639/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
640 STATE-NUM when YYTABLE doesn't specify something else to do. Zero
641 means the default is an error. */
642static const yytype_uint8 yydefact[] =
643{
644 0, 26, 0, 0, 0, 0, 0, 0, 2, 0,
645 24, 25, 23, 22, 1, 0, 0, 0, 0, 0,
646 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
647 0, 0, 0, 3, 4, 5, 6, 7, 8, 14,
648 9, 13, 11, 10, 12, 16, 15, 18, 17, 21,
649 20, 19
650};
651
652/* YYDEFGOTO[NTERM-NUM]. */
653static const yytype_int8 yydefgoto[] =
654{
655 -1, 7, 8
656};
657
658/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
659 STATE-NUM. */
660#define YYPACT_NINF -13
661static const yytype_int16 yypact[] =
662{
663 28, -13, 28, 28, 28, 28, 28, 12, 67, 49,
664 -13, -13, -13, -13, -13, 28, 28, 28, 28, 28,
665 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
666 28, 28, 28, -13, 84, 100, 115, 23, 128, 139,
667 139, -12, -12, -12, -12, 144, 144, 147, 147, -13,
668 -13, -13
669};
670
671/* YYPGOTO[NTERM-NUM]. */
672static const yytype_int8 yypgoto[] =
673{
674 -13, -13, -2
675};
676
677/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
678 positive, shift that token. If negative, reduce the rule which
679 number is the opposite. If zero, do what YYDEFACT says.
680 If YYTABLE_NINF, syntax error. */
681#define YYTABLE_NINF -1
682static const yytype_uint8 yytable[] =
683{
684 9, 10, 11, 12, 13, 26, 27, 28, 29, 30,
685 31, 32, 14, 34, 35, 36, 37, 38, 39, 40,
686 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
687 51, 1, 2, 19, 20, 21, 22, 23, 24, 25,
688 26, 27, 28, 29, 30, 31, 32, 3, 4, 0,
689 0, 0, 5, 6, 33, 15, 16, 17, 18, 19,
690 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
691 30, 31, 32, 15, 16, 17, 18, 19, 20, 21,
692 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
693 32, 16, 17, 18, 19, 20, 21, 22, 23, 24,
694 25, 26, 27, 28, 29, 30, 31, 32, 17, 18,
695 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
696 29, 30, 31, 32, 18, 19, 20, 21, 22, 23,
697 24, 25, 26, 27, 28, 29, 30, 31, 32, 20,
698 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
699 31, 32, 22, 23, 24, 25, 26, 27, 28, 29,
700 30, 31, 32, 28, 29, 30, 31, 32, 30, 31,
701 32
702};
703
704static const yytype_int8 yycheck[] =
705{
706 2, 3, 4, 5, 6, 17, 18, 19, 20, 21,
707 22, 23, 0, 15, 16, 17, 18, 19, 20, 21,
708 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
709 32, 3, 4, 10, 11, 12, 13, 14, 15, 16,
710 17, 18, 19, 20, 21, 22, 23, 19, 20, -1,
711 -1, -1, 24, 25, 5, 6, 7, 8, 9, 10,
712 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
713 21, 22, 23, 6, 7, 8, 9, 10, 11, 12,
714 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
715 23, 7, 8, 9, 10, 11, 12, 13, 14, 15,
716 16, 17, 18, 19, 20, 21, 22, 23, 8, 9,
717 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
718 20, 21, 22, 23, 9, 10, 11, 12, 13, 14,
719 15, 16, 17, 18, 19, 20, 21, 22, 23, 11,
720 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
721 22, 23, 13, 14, 15, 16, 17, 18, 19, 20,
722 21, 22, 23, 19, 20, 21, 22, 23, 21, 22,
723 23
724};
725
726/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
727 symbol of state STATE-NUM. */
728static const yytype_uint8 yystos[] =
729{
730 0, 3, 4, 19, 20, 24, 25, 29, 30, 30,
731 30, 30, 30, 30, 0, 6, 7, 8, 9, 10,
732 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
733 21, 22, 23, 5, 30, 30, 30, 30, 30, 30,
734 30, 30, 30, 30, 30, 30, 30, 30, 30, 30,
735 30, 30
736};
737
738#define yyerrok (yyerrstatus = 0)
739#define yyclearin (yychar = YYEMPTY)
740#define YYEMPTY (-2)
741#define YYEOF 0
742
743#define YYACCEPT goto yyacceptlab
744#define YYABORT goto yyabortlab
745#define YYERROR goto yyerrorlab
746
747
748/* Like YYERROR except do call yyerror. This remains here temporarily
749 to ease the transition to the new meaning of YYERROR, for GCC.
750 Once GCC version 2 has supplanted version 1, this can go. */
751
752#define YYFAIL goto yyerrlab
753
754#define YYRECOVERING() (!!yyerrstatus)
755
756#define YYBACKUP(Token, Value) \
757do \
758 if (yychar == YYEMPTY && yylen == 1) \
759 { \
760 yychar = (Token); \
761 yylval = (Value); \
762 yytoken = YYTRANSLATE (yychar); \
763 YYPOPSTACK (1); \
764 goto yybackup; \
765 } \
766 else \
767 { \
768 yyerror (YY_("syntax error: cannot back up")); \
769 YYERROR; \
770 } \
771while (YYID (0))
772
773
774#define YYTERROR 1
775#define YYERRCODE 256
776
777
778/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
779 If N is 0, then set CURRENT to the empty location which ends
780 the previous symbol: RHS[0] (always defined). */
781
782#define YYRHSLOC(Rhs, K) ((Rhs)[K])
783#ifndef YYLLOC_DEFAULT
784# define YYLLOC_DEFAULT(Current, Rhs, N) \
785 do \
786 if (YYID (N)) \
787 { \
788 (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
789 (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
790 (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
791 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
792 } \
793 else \
794 { \
795 (Current).first_line = (Current).last_line = \
796 YYRHSLOC (Rhs, 0).last_line; \
797 (Current).first_column = (Current).last_column = \
798 YYRHSLOC (Rhs, 0).last_column; \
799 } \
800 while (YYID (0))
801#endif
802
803
804/* YY_LOCATION_PRINT -- Print the location on the stream.
805 This macro was not mandated originally: define only if we know
806 we won't break user code: when these are the locations we know. */
807
808#ifndef YY_LOCATION_PRINT
809# if YYLTYPE_IS_TRIVIAL
810# define YY_LOCATION_PRINT(File, Loc) \
811 fprintf (File, "%d.%d-%d.%d", \
812 (Loc).first_line, (Loc).first_column, \
813 (Loc).last_line, (Loc).last_column)
814# else
815# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
816# endif
817#endif
818
819
820/* YYLEX -- calling `yylex' with the right arguments. */
821
822#ifdef YYLEX_PARAM
823# define YYLEX yylex (YYLEX_PARAM)
824#else
825# define YYLEX yylex ()
826#endif
827
828/* Enable debugging if requested. */
829#if YYDEBUG
830
831# ifndef YYFPRINTF
832# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
833# define YYFPRINTF fprintf
834# endif
835
836# define YYDPRINTF(Args) \
837do { \
838 if (yydebug) \
839 YYFPRINTF Args; \
840} while (YYID (0))
841
842# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
843do { \
844 if (yydebug) \
845 { \
846 YYFPRINTF (stderr, "%s ", Title); \
847 yy_symbol_print (stderr, \
848 Type, Value); \
849 YYFPRINTF (stderr, "\n"); \
850 } \
851} while (YYID (0))
852
853
854/*--------------------------------.
855| Print this symbol on YYOUTPUT. |
856`--------------------------------*/
857
858/*ARGSUSED*/
859#if (defined __STDC__ || defined __C99__FUNC__ \
860 || defined __cplusplus || defined _MSC_VER)
861static void
862yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
863#else
864static void
865yy_symbol_value_print (yyoutput, yytype, yyvaluep)
866 FILE *yyoutput;
867 int yytype;
868 YYSTYPE const * const yyvaluep;
869#endif
870{
871 if (!yyvaluep)
872 return;
873# ifdef YYPRINT
874 if (yytype < YYNTOKENS)
875 YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
876# else
877 YYUSE (yyoutput);
878# endif
879 switch (yytype)
880 {
881 default:
882 break;
883 }
884}
885
886
887/*--------------------------------.
888| Print this symbol on YYOUTPUT. |
889`--------------------------------*/
890
891#if (defined __STDC__ || defined __C99__FUNC__ \
892 || defined __cplusplus || defined _MSC_VER)
893static void
894yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
895#else
896static void
897yy_symbol_print (yyoutput, yytype, yyvaluep)
898 FILE *yyoutput;
899 int yytype;
900 YYSTYPE const * const yyvaluep;
901#endif
902{
903 if (yytype < YYNTOKENS)
904 YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
905 else
906 YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
907
908 yy_symbol_value_print (yyoutput, yytype, yyvaluep);
909 YYFPRINTF (yyoutput, ")");
910}
911
912/*------------------------------------------------------------------.
913| yy_stack_print -- Print the state stack from its BOTTOM up to its |
914| TOP (included). |
915`------------------------------------------------------------------*/
916
917#if (defined __STDC__ || defined __C99__FUNC__ \
918 || defined __cplusplus || defined _MSC_VER)
919static void
920yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
921#else
922static void
923yy_stack_print (bottom, top)
924 yytype_int16 *bottom;
925 yytype_int16 *top;
926#endif
927{
928 YYFPRINTF (stderr, "Stack now");
929 for (; bottom <= top; ++bottom)
930 YYFPRINTF (stderr, " %d", *bottom);
931 YYFPRINTF (stderr, "\n");
932}
933
934# define YY_STACK_PRINT(Bottom, Top) \
935do { \
936 if (yydebug) \
937 yy_stack_print ((Bottom), (Top)); \
938} while (YYID (0))
939
940
941/*------------------------------------------------.
942| Report that the YYRULE is going to be reduced. |
943`------------------------------------------------*/
944
945#if (defined __STDC__ || defined __C99__FUNC__ \
946 || defined __cplusplus || defined _MSC_VER)
947static void
948yy_reduce_print (YYSTYPE *yyvsp, int yyrule)
949#else
950static void
951yy_reduce_print (yyvsp, yyrule)
952 YYSTYPE *yyvsp;
953 int yyrule;
954#endif
955{
956 int yynrhs = yyr2[yyrule];
957 int yyi;
958 unsigned long int yylno = yyrline[yyrule];
959 YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
960 yyrule - 1, yylno);
961 /* The symbols being reduced. */
962 for (yyi = 0; yyi < yynrhs; yyi++)
963 {
964 fprintf (stderr, " $%d = ", yyi + 1);
965 yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
966 &(yyvsp[(yyi + 1) - (yynrhs)])
967 );
968 fprintf (stderr, "\n");
969 }
970}
971
972# define YY_REDUCE_PRINT(Rule) \
973do { \
974 if (yydebug) \
975 yy_reduce_print (yyvsp, Rule); \
976} while (YYID (0))
977
978/* Nonzero means print parse trace. It is left uninitialized so that
979 multiple parsers can coexist. */
980int yydebug;
981#else /* !YYDEBUG */
982# define YYDPRINTF(Args)
983# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
984# define YY_STACK_PRINT(Bottom, Top)
985# define YY_REDUCE_PRINT(Rule)
986#endif /* !YYDEBUG */
987
988
989/* YYINITDEPTH -- initial size of the parser's stacks. */
990#ifndef YYINITDEPTH
991# define YYINITDEPTH 200
992#endif
993
994/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
995 if the built-in stack extension method is used).
996
997 Do not make this value too large; the results are undefined if
998 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
999 evaluated with infinite-precision integer arithmetic. */
1000
1001#ifndef YYMAXDEPTH
1002# define YYMAXDEPTH 10000
1003#endif
1004
1005
1006
1007
1008#if YYERROR_VERBOSE
1009
1010# ifndef yystrlen
1011# if defined __GLIBC__ && defined _STRING_H
1012# define yystrlen strlen
1013# else
1014/* Return the length of YYSTR. */
1015#if (defined __STDC__ || defined __C99__FUNC__ \
1016 || defined __cplusplus || defined _MSC_VER)
1017static YYSIZE_T
1018yystrlen (const char *yystr)
1019#else
1020static YYSIZE_T
1021yystrlen (yystr)
1022 const char *yystr;
1023#endif
1024{
1025 YYSIZE_T yylen;
1026 for (yylen = 0; yystr[yylen]; yylen++)
1027 continue;
1028 return yylen;
1029}
1030# endif
1031# endif
1032
1033# ifndef yystpcpy
1034# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
1035# define yystpcpy stpcpy
1036# else
1037/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
1038 YYDEST. */
1039#if (defined __STDC__ || defined __C99__FUNC__ \
1040 || defined __cplusplus || defined _MSC_VER)
1041static char *
1042yystpcpy (char *yydest, const char *yysrc)
1043#else
1044static char *
1045yystpcpy (yydest, yysrc)
1046 char *yydest;
1047 const char *yysrc;
1048#endif
1049{
1050 char *yyd = yydest;
1051 const char *yys = yysrc;
1052
1053 while ((*yyd++ = *yys++) != '\0')
1054 continue;
1055
1056 return yyd - 1;
1057}
1058# endif
1059# endif
1060
1061# ifndef yytnamerr
1062/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
1063 quotes and backslashes, so that it's suitable for yyerror. The
1064 heuristic is that double-quoting is unnecessary unless the string
1065 contains an apostrophe, a comma, or backslash (other than
1066 backslash-backslash). YYSTR is taken from yytname. If YYRES is
1067 null, do not copy; instead, return the length of what the result
1068 would have been. */
1069static YYSIZE_T
1070yytnamerr (char *yyres, const char *yystr)
1071{
1072 if (*yystr == '"')
1073 {
1074 YYSIZE_T yyn = 0;
1075 char const *yyp = yystr;
1076
1077 for (;;)
1078 switch (*++yyp)
1079 {
1080 case '\'':
1081 case ',':
1082 goto do_not_strip_quotes;
1083
1084 case '\\':
1085 if (*++yyp != '\\')
1086 goto do_not_strip_quotes;
1087 /* Fall through. */
1088 default:
1089 if (yyres)
1090 yyres[yyn] = *yyp;
1091 yyn++;
1092 break;
1093
1094 case '"':
1095 if (yyres)
1096 yyres[yyn] = '\0';
1097 return yyn;
1098 }
1099 do_not_strip_quotes: ;
1100 }
1101
1102 if (! yyres)
1103 return yystrlen (yystr);
1104
1105 return yystpcpy (yyres, yystr) - yyres;
1106}
1107# endif
1108
1109/* Copy into YYRESULT an error message about the unexpected token
1110 YYCHAR while in state YYSTATE. Return the number of bytes copied,
1111 including the terminating null byte. If YYRESULT is null, do not
1112 copy anything; just return the number of bytes that would be
1113 copied. As a special case, return 0 if an ordinary "syntax error"
1114 message will do. Return YYSIZE_MAXIMUM if overflow occurs during
1115 size calculation. */
1116static YYSIZE_T
1117yysyntax_error (char *yyresult, int yystate, int yychar)
1118{
1119 int yyn = yypact[yystate];
1120
1121 if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
1122 return 0;
1123 else
1124 {
1125 int yytype = YYTRANSLATE (yychar);
1126 YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
1127 YYSIZE_T yysize = yysize0;
1128 YYSIZE_T yysize1;
1129 int yysize_overflow = 0;
1130 enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
1131 char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
1132 int yyx;
1133
1134# if 0
1135 /* This is so xgettext sees the translatable formats that are
1136 constructed on the fly. */
1137 YY_("syntax error, unexpected %s");
1138 YY_("syntax error, unexpected %s, expecting %s");
1139 YY_("syntax error, unexpected %s, expecting %s or %s");
1140 YY_("syntax error, unexpected %s, expecting %s or %s or %s");
1141 YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
1142# endif
1143 char *yyfmt;
1144 char const *yyf;
1145 static char const yyunexpected[] = "syntax error, unexpected %s";
1146 static char const yyexpecting[] = ", expecting %s";
1147 static char const yyor[] = " or %s";
1148 char yyformat[sizeof yyunexpected
1149 + sizeof yyexpecting - 1
1150 + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
1151 * (sizeof yyor - 1))];
1152 char const *yyprefix = yyexpecting;
1153
1154 /* Start YYX at -YYN if negative to avoid negative indexes in
1155 YYCHECK. */
1156 int yyxbegin = yyn < 0 ? -yyn : 0;
1157
1158 /* Stay within bounds of both yycheck and yytname. */
1159 int yychecklim = YYLAST - yyn + 1;
1160 int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
1161 int yycount = 1;
1162
1163 yyarg[0] = yytname[yytype];
1164 yyfmt = yystpcpy (yyformat, yyunexpected);
1165
1166 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
1167 if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
1168 {
1169 if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
1170 {
1171 yycount = 1;
1172 yysize = yysize0;
1173 yyformat[sizeof yyunexpected - 1] = '\0';
1174 break;
1175 }
1176 yyarg[yycount++] = yytname[yyx];
1177 yysize1 = yysize + yytnamerr (0, yytname[yyx]);
1178 yysize_overflow |= (yysize1 < yysize);
1179 yysize = yysize1;
1180 yyfmt = yystpcpy (yyfmt, yyprefix);
1181 yyprefix = yyor;
1182 }
1183
1184 yyf = YY_(yyformat);
1185 yysize1 = yysize + yystrlen (yyf);
1186 yysize_overflow |= (yysize1 < yysize);
1187 yysize = yysize1;
1188
1189 if (yysize_overflow)
1190 return YYSIZE_MAXIMUM;
1191
1192 if (yyresult)
1193 {
1194 /* Avoid sprintf, as that infringes on the user's name space.
1195 Don't have undefined behavior even if the translation
1196 produced a string with the wrong number of "%s"s. */
1197 char *yyp = yyresult;
1198 int yyi = 0;
1199 while ((*yyp = *yyf) != '\0')
1200 {
1201 if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
1202 {
1203 yyp += yytnamerr (yyp, yyarg[yyi++]);
1204 yyf += 2;
1205 }
1206 else
1207 {
1208 yyp++;
1209 yyf++;
1210 }
1211 }
1212 }
1213 return yysize;
1214 }
1215}
1216#endif /* YYERROR_VERBOSE */
1217
1218
1219
1220/*-----------------------------------------------.
1221| Release the memory associated to this symbol. |
1222`-----------------------------------------------*/
1223
1224/*ARGSUSED*/
1225#if (defined __STDC__ || defined __C99__FUNC__ \
1226 || defined __cplusplus || defined _MSC_VER)
1227static void
1228yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
1229#else
1230static void
1231yydestruct (yymsg, yytype, yyvaluep)
1232 const char *yymsg;
1233 int yytype;
1234 YYSTYPE *yyvaluep;
1235#endif
1236{
1237 YYUSE (yyvaluep);
1238
1239 if (!yymsg)
1240 yymsg = "Deleting";
1241 YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
1242
1243 switch (yytype)
1244 {
1245
1246 default:
1247 break;
1248 }
1249}
1250
1251
1252
1253/* Prevent warnings from -Wmissing-prototypes. */
1254
1255#ifdef YYPARSE_PARAM
1256#if defined __STDC__ || defined __cplusplus
1257int yyparse (void *YYPARSE_PARAM);
1258#else
1259int yyparse ();
1260#endif
1261#else /* ! YYPARSE_PARAM */
1262#if defined __STDC__ || defined __cplusplus
1263int yyparse (void);
1264#else
1265int yyparse ();
1266#endif
1267#endif /* ! YYPARSE_PARAM */
1268
1269
1270
1271/* The look-ahead symbol. */
1272int yychar;
1273
1274/* The semantic value of the look-ahead symbol. */
1275YYSTYPE yylval;
1276
1277/* Number of syntax errors so far. */
1278int yynerrs;
1279
1280
1281
1282/*----------.
1283| yyparse. |
1284`----------*/
1285
1286#ifdef YYPARSE_PARAM
1287#if (defined __STDC__ || defined __C99__FUNC__ \
1288 || defined __cplusplus || defined _MSC_VER)
1289int
1290yyparse (void *YYPARSE_PARAM)
1291#else
1292int
1293yyparse (YYPARSE_PARAM)
1294 void *YYPARSE_PARAM;
1295#endif
1296#else /* ! YYPARSE_PARAM */
1297#if (defined __STDC__ || defined __C99__FUNC__ \
1298 || defined __cplusplus || defined _MSC_VER)
1299int
1300yyparse (void)
1301#else
1302int
1303yyparse ()
1304
1305#endif
1306#endif
1307{
1308
1309 int yystate;
1310 int yyn;
1311 int yyresult;
1312 /* Number of tokens to shift before error messages enabled. */
1313 int yyerrstatus;
1314 /* Look-ahead token as an internal (translated) token number. */
1315 int yytoken = 0;
1316#if YYERROR_VERBOSE
1317 /* Buffer for error messages, and its allocated size. */
1318 char yymsgbuf[128];
1319 char *yymsg = yymsgbuf;
1320 YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
1321#endif
1322
1323 /* Three stacks and their tools:
1324 `yyss': related to states,
1325 `yyvs': related to semantic values,
1326 `yyls': related to locations.
1327
1328 Refer to the stacks thru separate pointers, to allow yyoverflow
1329 to reallocate them elsewhere. */
1330
1331 /* The state stack. */
1332 yytype_int16 yyssa[YYINITDEPTH];
1333 yytype_int16 *yyss = yyssa;
1334 yytype_int16 *yyssp;
1335
1336 /* The semantic value stack. */
1337 YYSTYPE yyvsa[YYINITDEPTH];
1338 YYSTYPE *yyvs = yyvsa;
1339 YYSTYPE *yyvsp;
1340
1341
1342
1343#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
1344
1345 YYSIZE_T yystacksize = YYINITDEPTH;
1346
1347 /* The variables used to return semantic value and location from the
1348 action routines. */
1349 YYSTYPE yyval;
1350
1351
1352 /* The number of symbols on the RHS of the reduced rule.
1353 Keep to zero when no symbol should be popped. */
1354 int yylen = 0;
1355
1356 YYDPRINTF ((stderr, "Starting parse\n"));
1357
1358 yystate = 0;
1359 yyerrstatus = 0;
1360 yynerrs = 0;
1361 yychar = YYEMPTY; /* Cause a token to be read. */
1362
1363 /* Initialize stack pointers.
1364 Waste one element of value and location stack
1365 so that they stay on the same level as the state stack.
1366 The wasted elements are never initialized. */
1367
1368 yyssp = yyss;
1369 yyvsp = yyvs;
1370
1371 goto yysetstate;
1372
1373/*------------------------------------------------------------.
1374| yynewstate -- Push a new state, which is found in yystate. |
1375`------------------------------------------------------------*/
1376 yynewstate:
1377 /* In all cases, when you get here, the value and location stacks
1378 have just been pushed. So pushing a state here evens the stacks. */
1379 yyssp++;
1380
1381 yysetstate:
1382 *yyssp = yystate;
1383
1384 if (yyss + yystacksize - 1 <= yyssp)
1385 {
1386 /* Get the current used size of the three stacks, in elements. */
1387 YYSIZE_T yysize = yyssp - yyss + 1;
1388
1389#ifdef yyoverflow
1390 {
1391 /* Give user a chance to reallocate the stack. Use copies of
1392 these so that the &'s don't force the real ones into
1393 memory. */
1394 YYSTYPE *yyvs1 = yyvs;
1395 yytype_int16 *yyss1 = yyss;
1396
1397
1398 /* Each stack pointer address is followed by the size of the
1399 data in use in that stack, in bytes. This used to be a
1400 conditional around just the two extra args, but that might
1401 be undefined if yyoverflow is a macro. */
1402 yyoverflow (YY_("memory exhausted"),
1403 &yyss1, yysize * sizeof (*yyssp),
1404 &yyvs1, yysize * sizeof (*yyvsp),
1405
1406 &yystacksize);
1407
1408 yyss = yyss1;
1409 yyvs = yyvs1;
1410 }
1411#else /* no yyoverflow */
1412# ifndef YYSTACK_RELOCATE
1413 goto yyexhaustedlab;
1414# else
1415 /* Extend the stack our own way. */
1416 if (YYMAXDEPTH <= yystacksize)
1417 goto yyexhaustedlab;
1418 yystacksize *= 2;
1419 if (YYMAXDEPTH < yystacksize)
1420 yystacksize = YYMAXDEPTH;
1421
1422 {
1423 yytype_int16 *yyss1 = yyss;
1424 union yyalloc *yyptr =
1425 (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
1426 if (! yyptr)
1427 goto yyexhaustedlab;
1428 YYSTACK_RELOCATE (yyss);
1429 YYSTACK_RELOCATE (yyvs);
1430
1431# undef YYSTACK_RELOCATE
1432 if (yyss1 != yyssa)
1433 YYSTACK_FREE (yyss1);
1434 }
1435# endif
1436#endif /* no yyoverflow */
1437
1438 yyssp = yyss + yysize - 1;
1439 yyvsp = yyvs + yysize - 1;
1440
1441
1442 YYDPRINTF ((stderr, "Stack size increased to %lu\n",
1443 (unsigned long int) yystacksize));
1444
1445 if (yyss + yystacksize - 1 <= yyssp)
1446 YYABORT;
1447 }
1448
1449 YYDPRINTF ((stderr, "Entering state %d\n", yystate));
1450
1451 goto yybackup;
1452
1453/*-----------.
1454| yybackup. |
1455`-----------*/
1456yybackup:
1457
1458 /* Do appropriate processing given the current state. Read a
1459 look-ahead token if we need one and don't already have one. */
1460
1461 /* First try to decide what to do without reference to look-ahead token. */
1462 yyn = yypact[yystate];
1463 if (yyn == YYPACT_NINF)
1464 goto yydefault;
1465
1466 /* Not known => get a look-ahead token if don't already have one. */
1467
1468 /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
1469 if (yychar == YYEMPTY)
1470 {
1471 YYDPRINTF ((stderr, "Reading a token: "));
1472 yychar = YYLEX;
1473 }
1474
1475 if (yychar <= YYEOF)
1476 {
1477 yychar = yytoken = YYEOF;
1478 YYDPRINTF ((stderr, "Now at end of input.\n"));
1479 }
1480 else
1481 {
1482 yytoken = YYTRANSLATE (yychar);
1483 YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
1484 }
1485
1486 /* If the proper action on seeing token YYTOKEN is to reduce or to
1487 detect an error, take that action. */
1488 yyn += yytoken;
1489 if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
1490 goto yydefault;
1491 yyn = yytable[yyn];
1492 if (yyn <= 0)
1493 {
1494 if (yyn == 0 || yyn == YYTABLE_NINF)
1495 goto yyerrlab;
1496 yyn = -yyn;
1497 goto yyreduce;
1498 }
1499
1500 if (yyn == YYFINAL)
1501 YYACCEPT;
1502
1503 /* Count tokens shifted since error; after three, turn off error
1504 status. */
1505 if (yyerrstatus)
1506 yyerrstatus--;
1507
1508 /* Shift the look-ahead token. */
1509 YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
1510
1511 /* Discard the shifted token unless it is eof. */
1512 if (yychar != YYEOF)
1513 yychar = YYEMPTY;
1514
1515 yystate = yyn;
1516 *++yyvsp = yylval;
1517
1518 goto yynewstate;
1519
1520
1521/*-----------------------------------------------------------.
1522| yydefault -- do the default action for the current state. |
1523`-----------------------------------------------------------*/
1524yydefault:
1525 yyn = yydefact[yystate];
1526 if (yyn == 0)
1527 goto yyerrlab;
1528 goto yyreduce;
1529
1530
1531/*-----------------------------.
1532| yyreduce -- Do a reduction. |
1533`-----------------------------*/
1534yyreduce:
1535 /* yyn is the number of a rule to reduce with. */
1536 yylen = yyr2[yyn];
1537
1538 /* If YYLEN is nonzero, implement the default value of the action:
1539 `$$ = $1'.
1540
1541 Otherwise, the following line sets YYVAL to garbage.
1542 This behavior is undocumented and Bison
1543 users should not rely upon it. Assigning to YYVAL
1544 unconditionally makes the parser a bit smaller, and it avoids a
1545 GCC warning that YYVAL may be used uninitialized. */
1546 yyval = yyvsp[1-yylen];
1547
1548
1549 YY_REDUCE_PRINT (yyn);
1550 switch (yyn)
1551 {
1552 case 2:
1553#line 153 "arith.y"
1554 {
1555 return ((yyvsp[(1) - (1)]));
1556 }
1557 break;
1558
1559 case 3:
1560#line 159 "arith.y"
1561 { (yyval) = (yyvsp[(2) - (3)]); }
1562 break;
1563
1564 case 4:
1565#line 160 "arith.y"
1566 { (yyval) = (yyvsp[(1) - (3)]) ? (yyvsp[(1) - (3)]) : (yyvsp[(3) - (3)]) ? (yyvsp[(3) - (3)]) : 0; }
1567 break;
1568
1569 case 5:
1570#line 161 "arith.y"
1571 { (yyval) = (yyvsp[(1) - (3)]) ? ( (yyvsp[(3) - (3)]) ? (yyvsp[(3) - (3)]) : 0 ) : 0; }
1572 break;
1573
1574 case 6:
1575#line 162 "arith.y"
1576 { (yyval) = (yyvsp[(1) - (3)]) | (yyvsp[(3) - (3)]); }
1577 break;
1578
1579 case 7:
1580#line 163 "arith.y"
1581 { (yyval) = (yyvsp[(1) - (3)]) ^ (yyvsp[(3) - (3)]); }
1582 break;
1583
1584 case 8:
1585#line 164 "arith.y"
1586 { (yyval) = (yyvsp[(1) - (3)]) & (yyvsp[(3) - (3)]); }
1587 break;
1588
1589 case 9:
1590#line 165 "arith.y"
1591 { (yyval) = (yyvsp[(1) - (3)]) == (yyvsp[(3) - (3)]); }
1592 break;
1593
1594 case 10:
1595#line 166 "arith.y"
1596 { (yyval) = (yyvsp[(1) - (3)]) > (yyvsp[(3) - (3)]); }
1597 break;
1598
1599 case 11:
1600#line 167 "arith.y"
1601 { (yyval) = (yyvsp[(1) - (3)]) >= (yyvsp[(3) - (3)]); }
1602 break;
1603
1604 case 12:
1605#line 168 "arith.y"
1606 { (yyval) = (yyvsp[(1) - (3)]) < (yyvsp[(3) - (3)]); }
1607 break;
1608
1609 case 13:
1610#line 169 "arith.y"
1611 { (yyval) = (yyvsp[(1) - (3)]) <= (yyvsp[(3) - (3)]); }
1612 break;
1613
1614 case 14:
1615#line 170 "arith.y"
1616 { (yyval) = (yyvsp[(1) - (3)]) != (yyvsp[(3) - (3)]); }
1617 break;
1618
1619 case 15:
1620#line 171 "arith.y"
1621 { (yyval) = (yyvsp[(1) - (3)]) << (yyvsp[(3) - (3)]); }
1622 break;
1623
1624 case 16:
1625#line 172 "arith.y"
1626 { (yyval) = (yyvsp[(1) - (3)]) >> (yyvsp[(3) - (3)]); }
1627 break;
1628
1629 case 17:
1630#line 173 "arith.y"
1631 { (yyval) = (yyvsp[(1) - (3)]) + (yyvsp[(3) - (3)]); }
1632 break;
1633
1634 case 18:
1635#line 174 "arith.y"
1636 { (yyval) = (yyvsp[(1) - (3)]) - (yyvsp[(3) - (3)]); }
1637 break;
1638
1639 case 19:
1640#line 175 "arith.y"
1641 { (yyval) = (yyvsp[(1) - (3)]) * (yyvsp[(3) - (3)]); }
1642 break;
1643
1644 case 20:
1645#line 176 "arith.y"
1646 {
1647 if ((yyvsp[(3) - (3)]) == 0)
1648 yyerror("division by zero");
1649 (yyval) = (yyvsp[(1) - (3)]) / (yyvsp[(3) - (3)]);
1650 }
1651 break;
1652
1653 case 21:
1654#line 181 "arith.y"
1655 {
1656 if ((yyvsp[(3) - (3)]) == 0)
1657 yyerror("division by zero");
1658 (yyval) = (yyvsp[(1) - (3)]) % (yyvsp[(3) - (3)]);
1659 }
1660 break;
1661
1662 case 22:
1663#line 186 "arith.y"
1664 { (yyval) = !((yyvsp[(2) - (2)])); }
1665 break;
1666
1667 case 23:
1668#line 187 "arith.y"
1669 { (yyval) = ~((yyvsp[(2) - (2)])); }
1670 break;
1671
1672 case 24:
1673#line 188 "arith.y"
1674 { (yyval) = -((yyvsp[(2) - (2)])); }
1675 break;
1676
1677 case 25:
1678#line 189 "arith.y"
1679 { (yyval) = (yyvsp[(2) - (2)]); }
1680 break;
1681
1682
1683/* Line 1267 of yacc.c. */
1684#line 1682 "y.tab.c"
1685 default: break;
1686 }
1687 YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
1688
1689 YYPOPSTACK (yylen);
1690 yylen = 0;
1691 YY_STACK_PRINT (yyss, yyssp);
1692
1693 *++yyvsp = yyval;
1694
1695
1696 /* Now `shift' the result of the reduction. Determine what state
1697 that goes to, based on the state we popped back to and the rule
1698 number reduced by. */
1699
1700 yyn = yyr1[yyn];
1701
1702 yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
1703 if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
1704 yystate = yytable[yystate];
1705 else
1706 yystate = yydefgoto[yyn - YYNTOKENS];
1707
1708 goto yynewstate;
1709
1710
1711/*------------------------------------.
1712| yyerrlab -- here on detecting error |
1713`------------------------------------*/
1714yyerrlab:
1715 /* If not already recovering from an error, report this error. */
1716 if (!yyerrstatus)
1717 {
1718 ++yynerrs;
1719#if ! YYERROR_VERBOSE
1720 yyerror (YY_("syntax error"));
1721#else
1722 {
1723 YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
1724 if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
1725 {
1726 YYSIZE_T yyalloc = 2 * yysize;
1727 if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
1728 yyalloc = YYSTACK_ALLOC_MAXIMUM;
1729 if (yymsg != yymsgbuf)
1730 YYSTACK_FREE (yymsg);
1731 yymsg = (char *) YYSTACK_ALLOC (yyalloc);
1732 if (yymsg)
1733 yymsg_alloc = yyalloc;
1734 else
1735 {
1736 yymsg = yymsgbuf;
1737 yymsg_alloc = sizeof yymsgbuf;
1738 }
1739 }
1740
1741 if (0 < yysize && yysize <= yymsg_alloc)
1742 {
1743 (void) yysyntax_error (yymsg, yystate, yychar);
1744 yyerror (yymsg);
1745 }
1746 else
1747 {
1748 yyerror (YY_("syntax error"));
1749 if (yysize != 0)
1750 goto yyexhaustedlab;
1751 }
1752 }
1753#endif
1754 }
1755
1756
1757
1758 if (yyerrstatus == 3)
1759 {
1760 /* If just tried and failed to reuse look-ahead token after an
1761 error, discard it. */
1762
1763 if (yychar <= YYEOF)
1764 {
1765 /* Return failure if at end of input. */
1766 if (yychar == YYEOF)
1767 YYABORT;
1768 }
1769 else
1770 {
1771 yydestruct ("Error: discarding",
1772 yytoken, &yylval);
1773 yychar = YYEMPTY;
1774 }
1775 }
1776
1777 /* Else will try to reuse look-ahead token after shifting the error
1778 token. */
1779 goto yyerrlab1;
1780
1781
1782/*---------------------------------------------------.
1783| yyerrorlab -- error raised explicitly by YYERROR. |
1784`---------------------------------------------------*/
1785yyerrorlab:
1786
1787 /* Pacify compilers like GCC when the user code never invokes
1788 YYERROR and the label yyerrorlab therefore never appears in user
1789 code. */
1790 if (/*CONSTCOND*/ 0)
1791 goto yyerrorlab;
1792
1793 /* Do not reclaim the symbols of the rule which action triggered
1794 this YYERROR. */
1795 YYPOPSTACK (yylen);
1796 yylen = 0;
1797 YY_STACK_PRINT (yyss, yyssp);
1798 yystate = *yyssp;
1799 goto yyerrlab1;
1800
1801
1802/*-------------------------------------------------------------.
1803| yyerrlab1 -- common code for both syntax error and YYERROR. |
1804`-------------------------------------------------------------*/
1805yyerrlab1:
1806 yyerrstatus = 3; /* Each real token shifted decrements this. */
1807
1808 for (;;)
1809 {
1810 yyn = yypact[yystate];
1811 if (yyn != YYPACT_NINF)
1812 {
1813 yyn += YYTERROR;
1814 if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
1815 {
1816 yyn = yytable[yyn];
1817 if (0 < yyn)
1818 break;
1819 }
1820 }
1821
1822 /* Pop the current state because it cannot handle the error token. */
1823 if (yyssp == yyss)
1824 YYABORT;
1825
1826
1827 yydestruct ("Error: popping",
1828 yystos[yystate], yyvsp);
1829 YYPOPSTACK (1);
1830 yystate = *yyssp;
1831 YY_STACK_PRINT (yyss, yyssp);
1832 }
1833
1834 if (yyn == YYFINAL)
1835 YYACCEPT;
1836
1837 *++yyvsp = yylval;
1838
1839
1840 /* Shift the error token. */
1841 YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
1842
1843 yystate = yyn;
1844 goto yynewstate;
1845
1846
1847/*-------------------------------------.
1848| yyacceptlab -- YYACCEPT comes here. |
1849`-------------------------------------*/
1850yyacceptlab:
1851 yyresult = 0;
1852 goto yyreturn;
1853
1854/*-----------------------------------.
1855| yyabortlab -- YYABORT comes here. |
1856`-----------------------------------*/
1857yyabortlab:
1858 yyresult = 1;
1859 goto yyreturn;
1860
1861#ifndef yyoverflow
1862/*-------------------------------------------------.
1863| yyexhaustedlab -- memory exhaustion comes here. |
1864`-------------------------------------------------*/
1865yyexhaustedlab:
1866 yyerror (YY_("memory exhausted"));
1867 yyresult = 2;
1868 /* Fall through. */
1869#endif
1870
1871yyreturn:
1872 if (yychar != YYEOF && yychar != YYEMPTY)
1873 yydestruct ("Cleanup: discarding lookahead",
1874 yytoken, &yylval);
1875 /* Do not reclaim the symbols of the rule which action triggered
1876 this YYABORT or YYACCEPT. */
1877 YYPOPSTACK (yylen);
1878 YY_STACK_PRINT (yyss, yyssp);
1879 while (yyssp != yyss)
1880 {
1881 yydestruct ("Cleanup: popping",
1882 yystos[*yyssp], yyvsp);
1883 YYPOPSTACK (1);
1884 }
1885#ifndef yyoverflow
1886 if (yyss != yyssa)
1887 YYSTACK_FREE (yyss);
1888#endif
1889#if YYERROR_VERBOSE
1890 if (yymsg != yymsgbuf)
1891 YYSTACK_FREE (yymsg);
1892#endif
1893 /* Make sure YYID is used. */
1894 return YYID (yyresult);
1895}
1896
1897
1898#line 192 "arith.y"
1899
1900void
1901yyerror(s)
1902 const char *s;
1903{
1904
1905 yyclearin;
1906 arith_lex_reset(); /* reprime lex */
1907 error("arithmetic expression: %s: \"%s\"", s, arith_startbuf);
1908 /* NOTREACHED */
1909}
1910
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