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parsedate.c
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1/* A Bison parser, made by GNU Bison 3.0.4. */
2
3/* Bison implementation for Yacc-like parsers in C
4
5 Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
6
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20/* As a special exception, you may create a larger work that contains
21 part or all of the Bison parser skeleton and distribute that work
22 under terms of your choice, so long as that work isn't itself a
23 parser generator using the skeleton or a modified version thereof
24 as a parser skeleton. Alternatively, if you modify or redistribute
25 the parser skeleton itself, you may (at your option) remove this
26 special exception, which will cause the skeleton and the resulting
27 Bison output files to be licensed under the GNU General Public
28 License without this special exception.
29
30 This special exception was added by the Free Software Foundation in
31 version 2.2 of Bison. */
32
33/* C LALR(1) parser skeleton written by Richard Stallman, by
34 simplifying the original so-called "semantic" parser. */
35
36/* All symbols defined below should begin with yy or YY, to avoid
37 infringing on user name space. This should be done even for local
38 variables, as they might otherwise be expanded by user macros.
39 There are some unavoidable exceptions within include files to
40 define necessary library symbols; they are noted "INFRINGES ON
41 USER NAME SPACE" below. */
42
43/* Identify Bison output. */
44#define YYBISON 1
45
46/* Bison version. */
47#define YYBISON_VERSION "3.0.4"
48
49/* Skeleton name. */
50#define YYSKELETON_NAME "yacc.c"
51
52/* Pure parsers. */
53#define YYPURE 0
54
55/* Push parsers. */
56#define YYPUSH 0
57
58/* Pull parsers. */
59#define YYPULL 1
60
61
62
63
64/* Copy the first part of user declarations. */
65#line 1 "parsedate.y" /* yacc.c:339 */
66
67/* $Revision$
68**
69** Originally written by Steven M. Bellovin <smb@research.att.com> while
70** at the University of North Carolina at Chapel Hill. Later tweaked by
71** a couple of people on Usenet. Completely overhauled by Rich $alz
72** <rsalz@osf.org> and Jim Berets <jberets@bbn.com> in August, 1990.
73** Further revised (removed obsolete constructs and cleaned up timezone
74** names) in August, 1991, by Rich. Paul Eggert <eggert@twinsun.com>
75** helped in September, 1992. Art Cancro <ajc@citadel.org> cleaned
76** it up for ANSI C in December, 1999.
77**
78** This grammar has six shift/reduce conflicts.
79**
80** This code is in the public domain and has no copyright.
81*/
82/* SUPPRESS 530 *//* Empty body for statement */
83/* SUPPRESS 593 on yyerrlab *//* Label was not used */
84/* SUPPRESS 593 on yynewstate *//* Label was not used */
85/* SUPPRESS 595 on yypvt *//* Automatic variable may be used before set */
86
87#include "sysdep.h"
88
89#include <stdio.h>
90#include <stdlib.h>
91#include <sys/types.h>
92#include <ctype.h>
93#include <time.h>
94#if HAVE_STRING_H
95# if !STDC_HEADERS && HAVE_MEMORY_H
96# include <memory.h>
97# endif
98# include <string.h>
99#endif
100#if HAVE_STRINGS_H
101# include <strings.h>
102#endif
103
104#include "parsedate.h"
105
106int date_lex(void);
107
108#define yyparse date_parse
109#define yylex date_lex
110#define yyerror date_error
111
112
113 /* See the LeapYears table in Convert. */
114#define EPOCH 1970
115#define END_OF_TIME 2038
116 /* Constants for general time calculations. */
117#define DST_OFFSET 1
118#define SECSPERDAY (24L * 60L * 60L)
119 /* Readability for TABLE stuff. */
120#define HOUR(x) (x * 60)
121
122#define LPAREN '('
123#define RPAREN ')'
124#define IS7BIT(x) ((unsigned int)(x) < 0200)
125
126#define SIZEOF(array) ((int)(sizeof array / sizeof array[0]))
127#define ENDOF(array) (&array[SIZEOF(array)])
128
129
130/*
131** An entry in the lexical lookup table.
132*/
133typedef struct _TABLE {
134 char *name;
135 int type;
136 time_t value;
138
139/*
140** Daylight-savings mode: on, off, or not yet known.
141*/
142typedef enum _DSTMODE {
145
146/*
147** Meridian: am, pm, or 24-hour style.
148*/
149typedef enum _MERIDIAN {
152
153
154/*
155** Global variables. We could get rid of most of them by using a yacc
156** union, but this is more efficient. (This routine predates the
157** yacc %union construct.)
158*/
159static const char *yyInput;
161static int yyHaveDate;
162static int yyHaveRel;
163static int yyHaveTime;
164static time_t yyTimezone;
165static time_t yyDay;
166static time_t yyHour;
167static time_t yyMinutes;
168static time_t yyMonth;
169static time_t yySeconds;
170static time_t yyYear;
172static time_t yyRelMonth;
173static time_t yyRelSeconds;
174
175
176static void date_error(char *);
177
178#line 179 "y.tab.c" /* yacc.c:339 */
179
180# ifndef YY_NULLPTR
181# if defined __cplusplus && 201103L <= __cplusplus
182# define YY_NULLPTR nullptr
183# else
184# define YY_NULLPTR 0
185# endif
186# endif
187
188/* Enabling verbose error messages. */
189#ifdef YYERROR_VERBOSE
190# undef YYERROR_VERBOSE
191# define YYERROR_VERBOSE 1
192#else
193# define YYERROR_VERBOSE 0
194#endif
195
196
197/* Debug traces. */
198#ifndef YYDEBUG
199# define YYDEBUG 0
200#endif
201#if YYDEBUG
202extern int yydebug;
203#endif
204
205/* Token type. */
206#ifndef YYTOKENTYPE
207# define YYTOKENTYPE
209 {
210 tDAY = 258,
211 tDAYZONE = 259,
213 tMONTH = 261,
216 tSNUMBER = 264,
217 tUNUMBER = 265,
218 tZONE = 266
219 };
220#endif
221/* Tokens. */
222#define tDAY 258
223#define tDAYZONE 259
224#define tMERIDIAN 260
225#define tMONTH 261
226#define tMONTH_UNIT 262
227#define tSEC_UNIT 263
228#define tSNUMBER 264
229#define tUNUMBER 265
230#define tZONE 266
231
232/* Value type. */
233#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
234
236{
237#line 114 "parsedate.y" /* yacc.c:355 */
238
239 time_t Number;
241
242#line 243 "y.tab.c" /* yacc.c:355 */
243};
244
245typedef union YYSTYPE YYSTYPE;
246# define YYSTYPE_IS_TRIVIAL 1
247# define YYSTYPE_IS_DECLARED 1
248#endif
249
250
251extern YYSTYPE yylval;
252
253int yyparse (void);
254
255
256
257/* Copy the second part of user declarations. */
258
259#line 260 "y.tab.c" /* yacc.c:358 */
260
261#ifdef short
262# undef short
263#endif
264
265#ifdef YYTYPE_UINT8
266typedef YYTYPE_UINT8 yytype_uint8;
267#else
268typedef unsigned char yytype_uint8;
269#endif
270
271#ifdef YYTYPE_INT8
272typedef YYTYPE_INT8 yytype_int8;
273#else
274typedef signed char yytype_int8;
275#endif
276
277#ifdef YYTYPE_UINT16
278typedef YYTYPE_UINT16 yytype_uint16;
279#else
280typedef unsigned short int yytype_uint16;
281#endif
282
283#ifdef YYTYPE_INT16
284typedef YYTYPE_INT16 yytype_int16;
285#else
286typedef short int yytype_int16;
287#endif
288
289#ifndef YYSIZE_T
290# ifdef __SIZE_TYPE__
291# define YYSIZE_T __SIZE_TYPE__
292# elif defined size_t
293# define YYSIZE_T size_t
294# elif ! defined YYSIZE_T
295# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
296# define YYSIZE_T size_t
297# else
298# define YYSIZE_T unsigned int
299# endif
300#endif
301
302#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
303
304#ifndef YY_
305# if defined YYENABLE_NLS && YYENABLE_NLS
306# if ENABLE_NLS
307# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
308# define YY_(Msgid) dgettext ("bison-runtime", Msgid)
309# endif
310# endif
311# ifndef YY_
312# define YY_(Msgid) Msgid
313# endif
314#endif
315
316#ifndef YY_ATTRIBUTE
317# if (defined __GNUC__ \
318 && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__))) \
319 || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
320# define YY_ATTRIBUTE(Spec) __attribute__(Spec)
321# else
322# define YY_ATTRIBUTE(Spec) /* empty */
323# endif
324#endif
325
326#ifndef YY_ATTRIBUTE_PURE
327# define YY_ATTRIBUTE_PURE YY_ATTRIBUTE ((__pure__))
328#endif
329
330#ifndef YY_ATTRIBUTE_UNUSED
331# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
332#endif
333
334#if !defined _Noreturn \
335 && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
336# if defined _MSC_VER && 1200 <= _MSC_VER
337# define _Noreturn __declspec (noreturn)
338# else
339# define _Noreturn YY_ATTRIBUTE ((__noreturn__))
340# endif
341#endif
342
343/* Suppress unused-variable warnings by "using" E. */
344#if ! defined lint || defined __GNUC__
345# define YYUSE(E) ((void) (E))
346#else
347# define YYUSE(E) /* empty */
348#endif
349
350#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
351/* Suppress an incorrect diagnostic about yylval being uninitialized. */
352# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
353 _Pragma ("GCC diagnostic push") \
354 _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
355 _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
356# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
357 _Pragma ("GCC diagnostic pop")
358#else
359# define YY_INITIAL_VALUE(Value) Value
360#endif
361#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
362# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
363# define YY_IGNORE_MAYBE_UNINITIALIZED_END
364#endif
365#ifndef YY_INITIAL_VALUE
366# define YY_INITIAL_VALUE(Value) /* Nothing. */
367#endif
368
369
370#if ! defined yyoverflow || YYERROR_VERBOSE
371
372/* The parser invokes alloca or malloc; define the necessary symbols. */
373
374# ifdef YYSTACK_USE_ALLOCA
375# if YYSTACK_USE_ALLOCA
376# ifdef __GNUC__
377# define YYSTACK_ALLOC __builtin_alloca
378# elif defined __BUILTIN_VA_ARG_INCR
379# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
380# elif defined _AIX
381# define YYSTACK_ALLOC __alloca
382# elif defined _MSC_VER
383# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
384# define alloca _alloca
385# else
386# define YYSTACK_ALLOC alloca
387# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
388# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
389 /* Use EXIT_SUCCESS as a witness for stdlib.h. */
390# ifndef EXIT_SUCCESS
391# define EXIT_SUCCESS 0
392# endif
393# endif
394# endif
395# endif
396# endif
397
398# ifdef YYSTACK_ALLOC
399 /* Pacify GCC's 'empty if-body' warning. */
400# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
401# ifndef YYSTACK_ALLOC_MAXIMUM
402 /* The OS might guarantee only one guard page at the bottom of the stack,
403 and a page size can be as small as 4096 bytes. So we cannot safely
404 invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
405 to allow for a few compiler-allocated temporary stack slots. */
406# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
407# endif
408# else
409# define YYSTACK_ALLOC YYMALLOC
410# define YYSTACK_FREE YYFREE
411# ifndef YYSTACK_ALLOC_MAXIMUM
412# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
413# endif
414# if (defined __cplusplus && ! defined EXIT_SUCCESS \
415 && ! ((defined YYMALLOC || defined malloc) \
416 && (defined YYFREE || defined free)))
417# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
418# ifndef EXIT_SUCCESS
419# define EXIT_SUCCESS 0
420# endif
421# endif
422# ifndef YYMALLOC
423# define YYMALLOC malloc
424# if ! defined malloc && ! defined EXIT_SUCCESS
425void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
426# endif
427# endif
428# ifndef YYFREE
429# define YYFREE free
430# if ! defined free && ! defined EXIT_SUCCESS
431void free (void *); /* INFRINGES ON USER NAME SPACE */
432# endif
433# endif
434# endif
435#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
436
437
438#if (! defined yyoverflow \
439 && (! defined __cplusplus \
440 || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
441
442/* A type that is properly aligned for any stack member. */
444{
447};
448
449/* The size of the maximum gap between one aligned stack and the next. */
450# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
451
452/* The size of an array large to enough to hold all stacks, each with
453 N elements. */
454# define YYSTACK_BYTES(N) \
455 ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \
456 + YYSTACK_GAP_MAXIMUM)
457
458# define YYCOPY_NEEDED 1
459
460/* Relocate STACK from its old location to the new one. The
461 local variables YYSIZE and YYSTACKSIZE give the old and new number of
462 elements in the stack, and YYPTR gives the new location of the
463 stack. Advance YYPTR to a properly aligned location for the next
464 stack. */
465# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
466 do \
467 { \
468 YYSIZE_T yynewbytes; \
469 YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
470 Stack = &yyptr->Stack_alloc; \
471 yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
472 yyptr += yynewbytes / sizeof (*yyptr); \
473 } \
474 while (0)
475
476#endif
477
478#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
479/* Copy COUNT objects from SRC to DST. The source and destination do
480 not overlap. */
481# ifndef YYCOPY
482# if defined __GNUC__ && 1 < __GNUC__
483# define YYCOPY(Dst, Src, Count) \
484 __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
485# else
486# define YYCOPY(Dst, Src, Count) \
487 do \
488 { \
489 YYSIZE_T yyi; \
490 for (yyi = 0; yyi < (Count); yyi++) \
491 (Dst)[yyi] = (Src)[yyi]; \
492 } \
493 while (0)
494# endif
495# endif
496#endif /* !YYCOPY_NEEDED */
497
498/* YYFINAL -- State number of the termination state. */
499#define YYFINAL 2
500/* YYLAST -- Last index in YYTABLE. */
501#define YYLAST 40
502
503/* YYNTOKENS -- Number of terminals. */
504#define YYNTOKENS 15
505/* YYNNTS -- Number of nonterminals. */
506#define YYNNTS 9
507/* YYNRULES -- Number of rules. */
508#define YYNRULES 30
509/* YYNSTATES -- Number of states. */
510#define YYNSTATES 44
511
512/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
513 by yylex, with out-of-bounds checking. */
514#define YYUNDEFTOK 2
515#define YYMAXUTOK 266
516
517#define YYTRANSLATE(YYX) \
518 ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
519
520/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
521 as returned by yylex, without out-of-bounds checking. */
522static const yytype_uint8 yytranslate[] =
523{
524 0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
525 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
526 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
527 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
528 2, 2, 2, 2, 14, 2, 2, 13, 2, 2,
529 2, 2, 2, 2, 2, 2, 2, 2, 12, 2,
530 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
531 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
532 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
533 2, 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, 1, 2, 3, 4,
550 5, 6, 7, 8, 9, 10, 11
551};
552
553#if YYDEBUG
554 /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
555static const yytype_uint16 yyrline[] =
556{
557 0, 128, 128, 129, 132, 141, 145, 148, 153, 165,
558 171, 178, 184, 194, 198, 202, 210, 216, 237, 241,
559 253, 257, 262, 266, 271, 278, 281, 284, 287, 292,
560 295
561};
562#endif
563
564#if YYDEBUG || YYERROR_VERBOSE || 0
565/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
566 First, the terminals, then, starting at YYNTOKENS, nonterminals. */
567static const char *const yytname[] =
568{
569 "$end", "error", "$undefined", "tDAY", "tDAYZONE", "tMERIDIAN",
570 "tMONTH", "tMONTH_UNIT", "tSEC_UNIT", "tSNUMBER", "tUNUMBER", "tZONE",
571 "':'", "'/'", "','", "$accept", "spec", "item", "time", "zone",
572 "numzone", "date", "rel", "o_merid", YY_NULLPTR
573};
574#endif
575
576# ifdef YYPRINT
577/* YYTOKNUM[NUM] -- (External) token number corresponding to the
578 (internal) symbol number NUM (which must be that of a token). */
579static const yytype_uint16 yytoknum[] =
580{
581 0, 256, 257, 258, 259, 260, 261, 262, 263, 264,
582 265, 266, 58, 47, 44
583};
584# endif
585
586#define YYPACT_NINF -29
587
588#define yypact_value_is_default(Yystate) \
589 (!!((Yystate) == (-29)))
590
591#define YYTABLE_NINF -1
592
593#define yytable_value_is_error(Yytable_value) \
594 0
595
596 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
597 STATE-NUM. */
598static const yytype_int8 yypact[] =
599{
600 -29, 1, -29, -11, 11, 20, 12, -29, 4, -29,
601 -29, 13, 16, -29, -29, -29, 21, -29, -29, 22,
602 23, -29, -29, -29, 5, -29, -29, 28, 25, -29,
603 17, 24, -29, 26, -29, 29, -29, -29, 30, -29,
604 0, -29, -29, -29
605};
606
607 /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
608 Performed when YYTABLE does not specify something else to do. Zero
609 means the default is an error. */
610static const yytype_uint8 yydefact[] =
611{
612 2, 0, 1, 0, 0, 0, 29, 3, 4, 6,
613 7, 0, 20, 27, 25, 30, 22, 28, 26, 0,
614 0, 8, 14, 17, 13, 5, 16, 0, 0, 23,
615 29, 18, 15, 0, 21, 0, 10, 9, 0, 24,
616 29, 19, 12, 11
617};
618
619 /* YYPGOTO[NTERM-NUM]. */
620static const yytype_int8 yypgoto[] =
621{
622 -29, -29, -29, -29, -29, -24, -29, -29, -28
623};
624
625 /* YYDEFGOTO[NTERM-NUM]. */
626static const yytype_int8 yydefgoto[] =
627{
628 -1, 1, 7, 8, 25, 26, 9, 10, 21
629};
630
631 /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If
632 positive, shift that token. If negative, reduce the rule whose
633 number is the opposite. If YYTABLE_NINF, syntax error. */
634static const yytype_uint8 yytable[] =
635{
636 32, 2, 37, 11, 3, 15, 36, 4, 22, 23,
637 5, 6, 43, 23, 23, 24, 42, 15, 16, 17,
638 18, 12, 15, 27, 19, 20, 23, 13, 14, 35,
639 28, 29, 30, 31, 33, 34, 39, 38, 0, 40,
640 41
641};
642
643static const yytype_int8 yycheck[] =
644{
645 24, 0, 30, 14, 3, 5, 30, 6, 4, 9,
646 9, 10, 40, 9, 9, 11, 40, 5, 6, 7,
647 8, 10, 5, 10, 12, 13, 9, 7, 8, 12,
648 14, 10, 10, 10, 6, 10, 10, 13, -1, 10,
649 10
650};
651
652 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
653 symbol of state STATE-NUM. */
654static const yytype_uint8 yystos[] =
655{
656 0, 16, 0, 3, 6, 9, 10, 17, 18, 21,
657 22, 14, 10, 7, 8, 5, 6, 7, 8, 12,
658 13, 23, 4, 9, 11, 19, 20, 10, 14, 10,
659 10, 10, 20, 6, 10, 12, 20, 23, 13, 10,
660 10, 10, 20, 23
661};
662
663 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */
664static const yytype_uint8 yyr1[] =
665{
666 0, 15, 16, 16, 17, 17, 17, 17, 18, 18,
667 18, 18, 18, 19, 19, 19, 19, 20, 21, 21,
668 21, 21, 21, 21, 21, 22, 22, 22, 22, 23,
669 23
670};
671
672 /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN. */
673static const yytype_uint8 yyr2[] =
674{
675 0, 2, 0, 2, 1, 2, 1, 1, 2, 4,
676 4, 6, 6, 1, 1, 2, 1, 1, 3, 5,
677 2, 4, 2, 3, 5, 2, 2, 2, 2, 0,
678 1
679};
680
681
682#define yyerrok (yyerrstatus = 0)
683#define yyclearin (yychar = YYEMPTY)
684#define YYEMPTY (-2)
685#define YYEOF 0
686
687#define YYACCEPT goto yyacceptlab
688#define YYABORT goto yyabortlab
689#define YYERROR goto yyerrorlab
690
691
692#define YYRECOVERING() (!!yyerrstatus)
693
694#define YYBACKUP(Token, Value) \
695do \
696 if (yychar == YYEMPTY) \
697 { \
698 yychar = (Token); \
699 yylval = (Value); \
700 YYPOPSTACK (yylen); \
701 yystate = *yyssp; \
702 goto yybackup; \
703 } \
704 else \
705 { \
706 yyerror (YY_("syntax error: cannot back up")); \
707 YYERROR; \
708 } \
709while (0)
710
711/* Error token number */
712#define YYTERROR 1
713#define YYERRCODE 256
714
715
716
717/* Enable debugging if requested. */
718#if YYDEBUG
719
720# ifndef YYFPRINTF
721# include <stdio.h> /* INFRINGES ON USER NAME SPACE */
722# define YYFPRINTF fprintf
723# endif
724
725# define YYDPRINTF(Args) \
726do { \
727 if (yydebug) \
728 YYFPRINTF Args; \
729} while (0)
730
731/* This macro is provided for backward compatibility. */
732#ifndef YY_LOCATION_PRINT
733# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
734#endif
735
736
737# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
738do { \
739 if (yydebug) \
740 { \
741 YYFPRINTF (stderr, "%s ", Title); \
742 yy_symbol_print (stderr, \
743 Type, Value); \
744 YYFPRINTF (stderr, "\n"); \
745 } \
746} while (0)
747
748
749/*----------------------------------------.
750| Print this symbol's value on YYOUTPUT. |
751`----------------------------------------*/
752
753static void
754yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
755{
756 FILE *yyo = yyoutput;
757 YYUSE (yyo);
758 if (!yyvaluep)
759 return;
760# ifdef YYPRINT
761 if (yytype < YYNTOKENS)
762 YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
763# endif
764 YYUSE (yytype);
765}
766
767
768/*--------------------------------.
769| Print this symbol on YYOUTPUT. |
770`--------------------------------*/
771
772static void
773yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep)
774{
775 YYFPRINTF (yyoutput, "%s %s (",
776 yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
777
778 yy_symbol_value_print (yyoutput, yytype, yyvaluep);
779 YYFPRINTF (yyoutput, ")");
780}
781
782/*------------------------------------------------------------------.
783| yy_stack_print -- Print the state stack from its BOTTOM up to its |
784| TOP (included). |
785`------------------------------------------------------------------*/
786
787static void
788yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
789{
790 YYFPRINTF (stderr, "Stack now");
791 for (; yybottom <= yytop; yybottom++)
792 {
793 int yybot = *yybottom;
794 YYFPRINTF (stderr, " %d", yybot);
795 }
796 YYFPRINTF (stderr, "\n");
797}
798
799# define YY_STACK_PRINT(Bottom, Top) \
800do { \
801 if (yydebug) \
802 yy_stack_print ((Bottom), (Top)); \
803} while (0)
804
805
806/*------------------------------------------------.
807| Report that the YYRULE is going to be reduced. |
808`------------------------------------------------*/
809
810static void
811yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule)
812{
813 unsigned long int yylno = yyrline[yyrule];
814 int yynrhs = yyr2[yyrule];
815 int yyi;
816 YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
817 yyrule - 1, yylno);
818 /* The symbols being reduced. */
819 for (yyi = 0; yyi < yynrhs; yyi++)
820 {
821 YYFPRINTF (stderr, " $%d = ", yyi + 1);
822 yy_symbol_print (stderr,
823 yystos[yyssp[yyi + 1 - yynrhs]],
824 &(yyvsp[(yyi + 1) - (yynrhs)])
825 );
826 YYFPRINTF (stderr, "\n");
827 }
828}
829
830# define YY_REDUCE_PRINT(Rule) \
831do { \
832 if (yydebug) \
833 yy_reduce_print (yyssp, yyvsp, Rule); \
834} while (0)
835
836/* Nonzero means print parse trace. It is left uninitialized so that
837 multiple parsers can coexist. */
838int yydebug;
839#else /* !YYDEBUG */
840# define YYDPRINTF(Args)
841# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
842# define YY_STACK_PRINT(Bottom, Top)
843# define YY_REDUCE_PRINT(Rule)
844#endif /* !YYDEBUG */
845
846
847/* YYINITDEPTH -- initial size of the parser's stacks. */
848#ifndef YYINITDEPTH
849# define YYINITDEPTH 200
850#endif
851
852/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
853 if the built-in stack extension method is used).
854
855 Do not make this value too large; the results are undefined if
856 YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
857 evaluated with infinite-precision integer arithmetic. */
858
859#ifndef YYMAXDEPTH
860# define YYMAXDEPTH 10000
861#endif
862
863
864#if YYERROR_VERBOSE
865
866# ifndef yystrlen
867# if defined __GLIBC__ && defined _STRING_H
868# define yystrlen strlen
869# else
870/* Return the length of YYSTR. */
871static YYSIZE_T
872yystrlen (const char *yystr)
873{
874 YYSIZE_T yylen;
875 for (yylen = 0; yystr[yylen]; yylen++)
876 continue;
877 return yylen;
878}
879# endif
880# endif
881
882# ifndef yystpcpy
883# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
884# define yystpcpy stpcpy
885# else
886/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
887 YYDEST. */
888static char *
889yystpcpy (char *yydest, const char *yysrc)
890{
891 char *yyd = yydest;
892 const char *yys = yysrc;
893
894 while ((*yyd++ = *yys++) != '\0')
895 continue;
896
897 return yyd - 1;
898}
899# endif
900# endif
901
902# ifndef yytnamerr
903/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
904 quotes and backslashes, so that it's suitable for yyerror. The
905 heuristic is that double-quoting is unnecessary unless the string
906 contains an apostrophe, a comma, or backslash (other than
907 backslash-backslash). YYSTR is taken from yytname. If YYRES is
908 null, do not copy; instead, return the length of what the result
909 would have been. */
910static YYSIZE_T
911yytnamerr (char *yyres, const char *yystr)
912{
913 if (*yystr == '"')
914 {
915 YYSIZE_T yyn = 0;
916 char const *yyp = yystr;
917
918 for (;;)
919 switch (*++yyp)
920 {
921 case '\'':
922 case ',':
923 goto do_not_strip_quotes;
924
925 case '\\':
926 if (*++yyp != '\\')
927 goto do_not_strip_quotes;
928 /* Fall through. */
929 default:
930 if (yyres)
931 yyres[yyn] = *yyp;
932 yyn++;
933 break;
934
935 case '"':
936 if (yyres)
937 yyres[yyn] = '\0';
938 return yyn;
939 }
940 do_not_strip_quotes: ;
941 }
942
943 if (! yyres)
944 return yystrlen (yystr);
945
946 return yystpcpy (yyres, yystr) - yyres;
947}
948# endif
949
950/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
951 about the unexpected token YYTOKEN for the state stack whose top is
952 YYSSP.
953
954 Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is
955 not large enough to hold the message. In that case, also set
956 *YYMSG_ALLOC to the required number of bytes. Return 2 if the
957 required number of bytes is too large to store. */
958static int
959yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
960 yytype_int16 *yyssp, int yytoken)
961{
962 YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
963 YYSIZE_T yysize = yysize0;
964 enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
965 /* Internationalized format string. */
966 const char *yyformat = YY_NULLPTR;
967 /* Arguments of yyformat. */
968 char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
969 /* Number of reported tokens (one for the "unexpected", one per
970 "expected"). */
971 int yycount = 0;
972
973 /* There are many possibilities here to consider:
974 - If this state is a consistent state with a default action, then
975 the only way this function was invoked is if the default action
976 is an error action. In that case, don't check for expected
977 tokens because there are none.
978 - The only way there can be no lookahead present (in yychar) is if
979 this state is a consistent state with a default action. Thus,
980 detecting the absence of a lookahead is sufficient to determine
981 that there is no unexpected or expected token to report. In that
982 case, just report a simple "syntax error".
983 - Don't assume there isn't a lookahead just because this state is a
984 consistent state with a default action. There might have been a
985 previous inconsistent state, consistent state with a non-default
986 action, or user semantic action that manipulated yychar.
987 - Of course, the expected token list depends on states to have
988 correct lookahead information, and it depends on the parser not
989 to perform extra reductions after fetching a lookahead from the
990 scanner and before detecting a syntax error. Thus, state merging
991 (from LALR or IELR) and default reductions corrupt the expected
992 token list. However, the list is correct for canonical LR with
993 one exception: it will still contain any token that will not be
994 accepted due to an error action in a later state.
995 */
996 if (yytoken != YYEMPTY)
997 {
998 int yyn = yypact[*yyssp];
999 yyarg[yycount++] = yytname[yytoken];
1000 if (!yypact_value_is_default (yyn))
1001 {
1002 /* Start YYX at -YYN if negative to avoid negative indexes in
1003 YYCHECK. In other words, skip the first -YYN actions for
1004 this state because they are default actions. */
1005 int yyxbegin = yyn < 0 ? -yyn : 0;
1006 /* Stay within bounds of both yycheck and yytname. */
1007 int yychecklim = YYLAST - yyn + 1;
1008 int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
1009 int yyx;
1010
1011 for (yyx = yyxbegin; yyx < yyxend; ++yyx)
1012 if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
1013 && !yytable_value_is_error (yytable[yyx + yyn]))
1014 {
1015 if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
1016 {
1017 yycount = 1;
1018 yysize = yysize0;
1019 break;
1020 }
1021 yyarg[yycount++] = yytname[yyx];
1022 {
1023 YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
1024 if (! (yysize <= yysize1
1025 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
1026 return 2;
1027 yysize = yysize1;
1028 }
1029 }
1030 }
1031 }
1032
1033 switch (yycount)
1034 {
1035# define YYCASE_(N, S) \
1036 case N: \
1037 yyformat = S; \
1038 break
1039 YYCASE_(0, YY_("syntax error"));
1040 YYCASE_(1, YY_("syntax error, unexpected %s"));
1041 YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
1042 YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
1043 YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
1044 YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
1045# undef YYCASE_
1046 }
1047
1048 {
1049 YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
1050 if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
1051 return 2;
1052 yysize = yysize1;
1053 }
1054
1055 if (*yymsg_alloc < yysize)
1056 {
1057 *yymsg_alloc = 2 * yysize;
1058 if (! (yysize <= *yymsg_alloc
1059 && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
1060 *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
1061 return 1;
1062 }
1063
1064 /* Avoid sprintf, as that infringes on the user's name space.
1065 Don't have undefined behavior even if the translation
1066 produced a string with the wrong number of "%s"s. */
1067 {
1068 char *yyp = *yymsg;
1069 int yyi = 0;
1070 while ((*yyp = *yyformat) != '\0')
1071 if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
1072 {
1073 yyp += yytnamerr (yyp, yyarg[yyi++]);
1074 yyformat += 2;
1075 }
1076 else
1077 {
1078 yyp++;
1079 yyformat++;
1080 }
1081 }
1082 return 0;
1083}
1084#endif /* YYERROR_VERBOSE */
1085
1086/*-----------------------------------------------.
1087| Release the memory associated to this symbol. |
1088`-----------------------------------------------*/
1089
1090static void
1091yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep)
1092{
1093 YYUSE (yyvaluep);
1094 if (!yymsg)
1095 yymsg = "Deleting";
1096 YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
1097
1099 YYUSE (yytype);
1101}
1102
1103
1104
1105
1106/* The lookahead symbol. */
1108
1109/* The semantic value of the lookahead symbol. */
1111/* Number of syntax errors so far. */
1113
1114
1115/*----------.
1116| yyparse. |
1117`----------*/
1118
1119int
1121{
1122 int yystate;
1123 /* Number of tokens to shift before error messages enabled. */
1124 int yyerrstatus;
1125
1126 /* The stacks and their tools:
1127 'yyss': related to states.
1128 'yyvs': related to semantic values.
1129
1130 Refer to the stacks through separate pointers, to allow yyoverflow
1131 to reallocate them elsewhere. */
1132
1133 /* The state stack. */
1135 yytype_int16 *yyss;
1136 yytype_int16 *yyssp;
1137
1138 /* The semantic value stack. */
1139 YYSTYPE yyvsa[YYINITDEPTH];
1140 YYSTYPE *yyvs;
1141 YYSTYPE *yyvsp;
1142
1143 YYSIZE_T yystacksize;
1144
1145 int yyn;
1146 int yyresult;
1147 /* Lookahead token as an internal (translated) token number. */
1148 int yytoken = 0;
1149 /* The variables used to return semantic value and location from the
1150 action routines. */
1151 YYSTYPE yyval;
1152
1153#if YYERROR_VERBOSE
1154 /* Buffer for error messages, and its allocated size. */
1155 char yymsgbuf[128];
1156 char *yymsg = yymsgbuf;
1157 YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
1158#endif
1159
1160#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
1161
1162 /* The number of symbols on the RHS of the reduced rule.
1163 Keep to zero when no symbol should be popped. */
1164 int yylen = 0;
1165
1166 yyssp = yyss = yyssa;
1167 yyvsp = yyvs = yyvsa;
1168 yystacksize = YYINITDEPTH;
1169
1170 YYDPRINTF ((stderr, "Starting parse\n"));
1171
1172 yystate = 0;
1173 yyerrstatus = 0;
1174 yynerrs = 0;
1175 yychar = YYEMPTY; /* Cause a token to be read. */
1176 goto yysetstate;
1177
1178/*------------------------------------------------------------.
1179| yynewstate -- Push a new state, which is found in yystate. |
1180`------------------------------------------------------------*/
1181 yynewstate:
1182 /* In all cases, when you get here, the value and location stacks
1183 have just been pushed. So pushing a state here evens the stacks. */
1184 yyssp++;
1185
1186 yysetstate:
1187 *yyssp = yystate;
1188
1189 if (yyss + yystacksize - 1 <= yyssp)
1190 {
1191 /* Get the current used size of the three stacks, in elements. */
1192 YYSIZE_T yysize = yyssp - yyss + 1;
1193
1194#ifdef yyoverflow
1195 {
1196 /* Give user a chance to reallocate the stack. Use copies of
1197 these so that the &'s don't force the real ones into
1198 memory. */
1199 YYSTYPE *yyvs1 = yyvs;
1200 yytype_int16 *yyss1 = yyss;
1201
1202 /* Each stack pointer address is followed by the size of the
1203 data in use in that stack, in bytes. This used to be a
1204 conditional around just the two extra args, but that might
1205 be undefined if yyoverflow is a macro. */
1206 yyoverflow (YY_("memory exhausted"),
1207 &yyss1, yysize * sizeof (*yyssp),
1208 &yyvs1, yysize * sizeof (*yyvsp),
1209 &yystacksize);
1210
1211 yyss = yyss1;
1212 yyvs = yyvs1;
1213 }
1214#else /* no yyoverflow */
1215# ifndef YYSTACK_RELOCATE
1216 goto yyexhaustedlab;
1217# else
1218 /* Extend the stack our own way. */
1219 if (YYMAXDEPTH <= yystacksize)
1220 goto yyexhaustedlab;
1221 yystacksize *= 2;
1222 if (YYMAXDEPTH < yystacksize)
1223 yystacksize = YYMAXDEPTH;
1224
1225 {
1226 yytype_int16 *yyss1 = yyss;
1227 union yyalloc *yyptr =
1228 (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
1229 if (! yyptr)
1230 goto yyexhaustedlab;
1233# undef YYSTACK_RELOCATE
1234 if (yyss1 != yyssa)
1235 YYSTACK_FREE (yyss1);
1236 }
1237# endif
1238#endif /* no yyoverflow */
1239
1240 yyssp = yyss + yysize - 1;
1241 yyvsp = yyvs + yysize - 1;
1242
1243 YYDPRINTF ((stderr, "Stack size increased to %lu\n",
1244 (unsigned long int) yystacksize));
1245
1246 if (yyss + yystacksize - 1 <= yyssp)
1247 YYABORT;
1248 }
1249
1250 YYDPRINTF ((stderr, "Entering state %d\n", yystate));
1251
1252 if (yystate == YYFINAL)
1253 YYACCEPT;
1254
1255 goto yybackup;
1256
1257/*-----------.
1258| yybackup. |
1259`-----------*/
1260yybackup:
1261
1262 /* Do appropriate processing given the current state. Read a
1263 lookahead token if we need one and don't already have one. */
1264
1265 /* First try to decide what to do without reference to lookahead token. */
1266 yyn = yypact[yystate];
1267 if (yypact_value_is_default (yyn))
1268 goto yydefault;
1269
1270 /* Not known => get a lookahead token if don't already have one. */
1271
1272 /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
1273 if (yychar == YYEMPTY)
1274 {
1275 YYDPRINTF ((stderr, "Reading a token: "));
1276 yychar = yylex ();
1277 }
1278
1279 if (yychar <= YYEOF)
1280 {
1281 yychar = yytoken = YYEOF;
1282 YYDPRINTF ((stderr, "Now at end of input.\n"));
1283 }
1284 else
1285 {
1286 yytoken = YYTRANSLATE (yychar);
1287 YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
1288 }
1289
1290 /* If the proper action on seeing token YYTOKEN is to reduce or to
1291 detect an error, take that action. */
1292 yyn += yytoken;
1293 if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
1294 goto yydefault;
1295 yyn = yytable[yyn];
1296 if (yyn <= 0)
1297 {
1298 if (yytable_value_is_error (yyn))
1299 goto yyerrlab;
1300 yyn = -yyn;
1301 goto yyreduce;
1302 }
1303
1304 /* Count tokens shifted since error; after three, turn off error
1305 status. */
1306 if (yyerrstatus)
1307 yyerrstatus--;
1308
1309 /* Shift the lookahead token. */
1310 YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
1311
1312 /* Discard the shifted token. */
1313 yychar = YYEMPTY;
1314
1315 yystate = yyn;
1317 *++yyvsp = yylval;
1319
1320 goto yynewstate;
1321
1322
1323/*-----------------------------------------------------------.
1324| yydefault -- do the default action for the current state. |
1325`-----------------------------------------------------------*/
1326yydefault:
1327 yyn = yydefact[yystate];
1328 if (yyn == 0)
1329 goto yyerrlab;
1330 goto yyreduce;
1331
1332
1333/*-----------------------------.
1334| yyreduce -- Do a reduction. |
1335`-----------------------------*/
1336yyreduce:
1337 /* yyn is the number of a rule to reduce with. */
1338 yylen = yyr2[yyn];
1339
1340 /* If YYLEN is nonzero, implement the default value of the action:
1341 '$$ = $1'.
1342
1343 Otherwise, the following line sets YYVAL to garbage.
1344 This behavior is undocumented and Bison
1345 users should not rely upon it. Assigning to YYVAL
1346 unconditionally makes the parser a bit smaller, and it avoids a
1347 GCC warning that YYVAL may be used uninitialized. */
1348 yyval = yyvsp[1-yylen];
1349
1350
1351 YY_REDUCE_PRINT (yyn);
1352 switch (yyn)
1353 {
1354 case 4:
1355#line 132 "parsedate.y" /* yacc.c:1646 */
1356 {
1357 yyHaveTime++;
1358#ifdef lint
1359 /* I am compulsive about lint natterings... */
1360 if (yyHaveTime == -1) {
1361 YYERROR;
1362 }
1363#endif /* lint */
1364 }
1365#line 1366 "y.tab.c" /* yacc.c:1646 */
1366 break;
1367
1368 case 5:
1369#line 141 "parsedate.y" /* yacc.c:1646 */
1370 {
1371 yyHaveTime++;
1372 yyTimezone = (yyvsp[0].Number);
1373 }
1374#line 1375 "y.tab.c" /* yacc.c:1646 */
1375 break;
1376
1377 case 6:
1378#line 145 "parsedate.y" /* yacc.c:1646 */
1379 {
1380 yyHaveDate++;
1381 }
1382#line 1383 "y.tab.c" /* yacc.c:1646 */
1383 break;
1384
1385 case 7:
1386#line 148 "parsedate.y" /* yacc.c:1646 */
1387 {
1388 yyHaveRel = 1;
1389 }
1390#line 1391 "y.tab.c" /* yacc.c:1646 */
1391 break;
1392
1393 case 8:
1394#line 153 "parsedate.y" /* yacc.c:1646 */
1395 {
1396 if ((yyvsp[-1].Number) < 100) {
1397 yyHour = (yyvsp[-1].Number);
1398 yyMinutes = 0;
1399 }
1400 else {
1401 yyHour = (yyvsp[-1].Number) / 100;
1402 yyMinutes = (yyvsp[-1].Number) % 100;
1403 }
1404 yySeconds = 0;
1405 yyMeridian = (yyvsp[0].Meridian);
1406 }
1407#line 1408 "y.tab.c" /* yacc.c:1646 */
1408 break;
1409
1410 case 9:
1411#line 165 "parsedate.y" /* yacc.c:1646 */
1412 {
1413 yyHour = (yyvsp[-3].Number);
1414 yyMinutes = (yyvsp[-1].Number);
1415 yySeconds = 0;
1416 yyMeridian = (yyvsp[0].Meridian);
1417 }
1418#line 1419 "y.tab.c" /* yacc.c:1646 */
1419 break;
1420
1421 case 10:
1422#line 171 "parsedate.y" /* yacc.c:1646 */
1423 {
1424 yyHour = (yyvsp[-3].Number);
1425 yyMinutes = (yyvsp[-1].Number);
1426 yyTimezone = (yyvsp[0].Number);
1427 yyMeridian = MER24;
1428 yyDSTmode = DSToff;
1429 }
1430#line 1431 "y.tab.c" /* yacc.c:1646 */
1431 break;
1432
1433 case 11:
1434#line 178 "parsedate.y" /* yacc.c:1646 */
1435 {
1436 yyHour = (yyvsp[-5].Number);
1437 yyMinutes = (yyvsp[-3].Number);
1438 yySeconds = (yyvsp[-1].Number);
1439 yyMeridian = (yyvsp[0].Meridian);
1440 }
1441#line 1442 "y.tab.c" /* yacc.c:1646 */
1442 break;
1443
1444 case 12:
1445#line 184 "parsedate.y" /* yacc.c:1646 */
1446 {
1447 yyHour = (yyvsp[-5].Number);
1448 yyMinutes = (yyvsp[-3].Number);
1449 yySeconds = (yyvsp[-1].Number);
1450 yyTimezone = (yyvsp[0].Number);
1451 yyMeridian = MER24;
1452 yyDSTmode = DSToff;
1453 }
1454#line 1455 "y.tab.c" /* yacc.c:1646 */
1455 break;
1456
1457 case 13:
1458#line 194 "parsedate.y" /* yacc.c:1646 */
1459 {
1460 (yyval.Number) = (yyvsp[0].Number);
1461 yyDSTmode = DSToff;
1462 }
1463#line 1464 "y.tab.c" /* yacc.c:1646 */
1464 break;
1465
1466 case 14:
1467#line 198 "parsedate.y" /* yacc.c:1646 */
1468 {
1469 (yyval.Number) = (yyvsp[0].Number);
1470 yyDSTmode = DSTon;
1471 }
1472#line 1473 "y.tab.c" /* yacc.c:1646 */
1473 break;
1474
1475 case 15:
1476#line 202 "parsedate.y" /* yacc.c:1646 */
1477 {
1478 /* Only allow "GMT+300" and "GMT-0800" */
1479 if ((yyvsp[-1].Number) != 0) {
1480 YYABORT;
1481 }
1482 (yyval.Number) = (yyvsp[0].Number);
1483 yyDSTmode = DSToff;
1484 }
1485#line 1486 "y.tab.c" /* yacc.c:1646 */
1486 break;
1487
1488 case 16:
1489#line 210 "parsedate.y" /* yacc.c:1646 */
1490 {
1491 (yyval.Number) = (yyvsp[0].Number);
1492 yyDSTmode = DSToff;
1493 }
1494#line 1495 "y.tab.c" /* yacc.c:1646 */
1495 break;
1496
1497 case 17:
1498#line 216 "parsedate.y" /* yacc.c:1646 */
1499 {
1500 int i;
1501
1502 /* Unix and GMT and numeric timezones -- a little confusing. */
1503 if ((yyvsp[0].Number) < 0) {
1504 /* Don't work with negative modulus. */
1505 (yyvsp[0].Number) = -(yyvsp[0].Number);
1506 if ((yyvsp[0].Number) > 9999 || (i = (yyvsp[0].Number) % 100) >= 60) {
1507 YYABORT;
1508 }
1509 (yyval.Number) = ((yyvsp[0].Number) / 100) * 60 + i;
1510 }
1511 else {
1512 if ((yyvsp[0].Number) > 9999 || (i = (yyvsp[0].Number) % 100) >= 60) {
1513 YYABORT;
1514 }
1515 (yyval.Number) = -(((yyvsp[0].Number) / 100) * 60 + i);
1516 }
1517 }
1518#line 1519 "y.tab.c" /* yacc.c:1646 */
1519 break;
1520
1521 case 18:
1522#line 237 "parsedate.y" /* yacc.c:1646 */
1523 {
1524 yyMonth = (yyvsp[-2].Number);
1525 yyDay = (yyvsp[0].Number);
1526 }
1527#line 1528 "y.tab.c" /* yacc.c:1646 */
1528 break;
1529
1530 case 19:
1531#line 241 "parsedate.y" /* yacc.c:1646 */
1532 {
1533 if ((yyvsp[-4].Number) > 100) {
1534 yyYear = (yyvsp[-4].Number);
1535 yyMonth = (yyvsp[-2].Number);
1536 yyDay = (yyvsp[0].Number);
1537 }
1538 else {
1539 yyMonth = (yyvsp[-4].Number);
1540 yyDay = (yyvsp[-2].Number);
1541 yyYear = (yyvsp[0].Number);
1542 }
1543 }
1544#line 1545 "y.tab.c" /* yacc.c:1646 */
1545 break;
1546
1547 case 20:
1548#line 253 "parsedate.y" /* yacc.c:1646 */
1549 {
1550 yyMonth = (yyvsp[-1].Number);
1551 yyDay = (yyvsp[0].Number);
1552 }
1553#line 1554 "y.tab.c" /* yacc.c:1646 */
1554 break;
1555
1556 case 21:
1557#line 257 "parsedate.y" /* yacc.c:1646 */
1558 {
1559 yyMonth = (yyvsp[-3].Number);
1560 yyDay = (yyvsp[-2].Number);
1561 yyYear = (yyvsp[0].Number);
1562 }
1563#line 1564 "y.tab.c" /* yacc.c:1646 */
1564 break;
1565
1566 case 22:
1567#line 262 "parsedate.y" /* yacc.c:1646 */
1568 {
1569 yyDay = (yyvsp[-1].Number);
1570 yyMonth = (yyvsp[0].Number);
1571 }
1572#line 1573 "y.tab.c" /* yacc.c:1646 */
1573 break;
1574
1575 case 23:
1576#line 266 "parsedate.y" /* yacc.c:1646 */
1577 {
1578 yyDay = (yyvsp[-2].Number);
1579 yyMonth = (yyvsp[-1].Number);
1580 yyYear = (yyvsp[0].Number);
1581 }
1582#line 1583 "y.tab.c" /* yacc.c:1646 */
1583 break;
1584
1585 case 24:
1586#line 271 "parsedate.y" /* yacc.c:1646 */
1587 {
1588 yyDay = (yyvsp[-2].Number);
1589 yyMonth = (yyvsp[-1].Number);
1590 yyYear = (yyvsp[0].Number);
1591 }
1592#line 1593 "y.tab.c" /* yacc.c:1646 */
1593 break;
1594
1595 case 25:
1596#line 278 "parsedate.y" /* yacc.c:1646 */
1597 {
1598 yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number);
1599 }
1600#line 1601 "y.tab.c" /* yacc.c:1646 */
1601 break;
1602
1603 case 26:
1604#line 281 "parsedate.y" /* yacc.c:1646 */
1605 {
1606 yyRelSeconds += (yyvsp[-1].Number) * (yyvsp[0].Number);
1607 }
1608#line 1609 "y.tab.c" /* yacc.c:1646 */
1609 break;
1610
1611 case 27:
1612#line 284 "parsedate.y" /* yacc.c:1646 */
1613 {
1614 yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number);
1615 }
1616#line 1617 "y.tab.c" /* yacc.c:1646 */
1617 break;
1618
1619 case 28:
1620#line 287 "parsedate.y" /* yacc.c:1646 */
1621 {
1622 yyRelMonth += (yyvsp[-1].Number) * (yyvsp[0].Number);
1623 }
1624#line 1625 "y.tab.c" /* yacc.c:1646 */
1625 break;
1626
1627 case 29:
1628#line 292 "parsedate.y" /* yacc.c:1646 */
1629 {
1630 (yyval.Meridian) = MER24;
1631 }
1632#line 1633 "y.tab.c" /* yacc.c:1646 */
1633 break;
1634
1635 case 30:
1636#line 295 "parsedate.y" /* yacc.c:1646 */
1637 {
1638 (yyval.Meridian) = (yyvsp[0].Meridian);
1639 }
1640#line 1641 "y.tab.c" /* yacc.c:1646 */
1641 break;
1642
1643
1644#line 1645 "y.tab.c" /* yacc.c:1646 */
1645 default: break;
1646 }
1647 /* User semantic actions sometimes alter yychar, and that requires
1648 that yytoken be updated with the new translation. We take the
1649 approach of translating immediately before every use of yytoken.
1650 One alternative is translating here after every semantic action,
1651 but that translation would be missed if the semantic action invokes
1652 YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
1653 if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
1654 incorrect destructor might then be invoked immediately. In the
1655 case of YYERROR or YYBACKUP, subsequent parser actions might lead
1656 to an incorrect destructor call or verbose syntax error message
1657 before the lookahead is translated. */
1658 YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
1659
1660 YYPOPSTACK (yylen);
1661 yylen = 0;
1662 YY_STACK_PRINT (yyss, yyssp);
1663
1664 *++yyvsp = yyval;
1665
1666 /* Now 'shift' the result of the reduction. Determine what state
1667 that goes to, based on the state we popped back to and the rule
1668 number reduced by. */
1669
1670 yyn = yyr1[yyn];
1671
1672 yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
1673 if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
1674 yystate = yytable[yystate];
1675 else
1676 yystate = yydefgoto[yyn - YYNTOKENS];
1677
1678 goto yynewstate;
1679
1680
1681/*--------------------------------------.
1682| yyerrlab -- here on detecting error. |
1683`--------------------------------------*/
1684yyerrlab:
1685 /* Make sure we have latest lookahead translation. See comments at
1686 user semantic actions for why this is necessary. */
1687 yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
1688
1689 /* If not already recovering from an error, report this error. */
1690 if (!yyerrstatus)
1691 {
1692 ++yynerrs;
1693#if ! YYERROR_VERBOSE
1694 yyerror (YY_("syntax error"));
1695#else
1696# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
1697 yyssp, yytoken)
1698 {
1699 char const *yymsgp = YY_("syntax error");
1700 int yysyntax_error_status;
1701 yysyntax_error_status = YYSYNTAX_ERROR;
1702 if (yysyntax_error_status == 0)
1703 yymsgp = yymsg;
1704 else if (yysyntax_error_status == 1)
1705 {
1706 if (yymsg != yymsgbuf)
1707 YYSTACK_FREE (yymsg);
1708 yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
1709 if (!yymsg)
1710 {
1711 yymsg = yymsgbuf;
1712 yymsg_alloc = sizeof yymsgbuf;
1713 yysyntax_error_status = 2;
1714 }
1715 else
1716 {
1717 yysyntax_error_status = YYSYNTAX_ERROR;
1718 yymsgp = yymsg;
1719 }
1720 }
1721 yyerror (yymsgp);
1722 if (yysyntax_error_status == 2)
1723 goto yyexhaustedlab;
1724 }
1725# undef YYSYNTAX_ERROR
1726#endif
1727 }
1728
1729
1730
1731 if (yyerrstatus == 3)
1732 {
1733 /* If just tried and failed to reuse lookahead token after an
1734 error, discard it. */
1735
1736 if (yychar <= YYEOF)
1737 {
1738 /* Return failure if at end of input. */
1739 if (yychar == YYEOF)
1740 YYABORT;
1741 }
1742 else
1743 {
1744 yydestruct ("Error: discarding",
1745 yytoken, &yylval);
1746 yychar = YYEMPTY;
1747 }
1748 }
1749
1750 /* Else will try to reuse lookahead token after shifting the error
1751 token. */
1752 goto yyerrlab1;
1753
1754
1755/*---------------------------------------------------.
1756| yyerrorlab -- error raised explicitly by YYERROR. |
1757`---------------------------------------------------*/
1758yyerrorlab:
1759
1760 /* Pacify compilers like GCC when the user code never invokes
1761 YYERROR and the label yyerrorlab therefore never appears in user
1762 code. */
1763 if (/*CONSTCOND*/ 0)
1764 goto yyerrorlab;
1765
1766 /* Do not reclaim the symbols of the rule whose action triggered
1767 this YYERROR. */
1768 YYPOPSTACK (yylen);
1769 yylen = 0;
1770 YY_STACK_PRINT (yyss, yyssp);
1771 yystate = *yyssp;
1772 goto yyerrlab1;
1773
1774
1775/*-------------------------------------------------------------.
1776| yyerrlab1 -- common code for both syntax error and YYERROR. |
1777`-------------------------------------------------------------*/
1778yyerrlab1:
1779 yyerrstatus = 3; /* Each real token shifted decrements this. */
1780
1781 for (;;)
1782 {
1783 yyn = yypact[yystate];
1784 if (!yypact_value_is_default (yyn))
1785 {
1786 yyn += YYTERROR;
1787 if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
1788 {
1789 yyn = yytable[yyn];
1790 if (0 < yyn)
1791 break;
1792 }
1793 }
1794
1795 /* Pop the current state because it cannot handle the error token. */
1796 if (yyssp == yyss)
1797 YYABORT;
1798
1799
1800 yydestruct ("Error: popping",
1801 yystos[yystate], yyvsp);
1802 YYPOPSTACK (1);
1803 yystate = *yyssp;
1804 YY_STACK_PRINT (yyss, yyssp);
1805 }
1806
1808 *++yyvsp = yylval;
1810
1811
1812 /* Shift the error token. */
1813 YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
1814
1815 yystate = yyn;
1816 goto yynewstate;
1817
1818
1819/*-------------------------------------.
1820| yyacceptlab -- YYACCEPT comes here. |
1821`-------------------------------------*/
1822yyacceptlab:
1823 yyresult = 0;
1824 goto yyreturn;
1825
1826/*-----------------------------------.
1827| yyabortlab -- YYABORT comes here. |
1828`-----------------------------------*/
1829yyabortlab:
1830 yyresult = 1;
1831 goto yyreturn;
1832
1833#if !defined yyoverflow || YYERROR_VERBOSE
1834/*-------------------------------------------------.
1835| yyexhaustedlab -- memory exhaustion comes here. |
1836`-------------------------------------------------*/
1837yyexhaustedlab:
1838 yyerror (YY_("memory exhausted"));
1839 yyresult = 2;
1840 /* Fall through. */
1841#endif
1842
1843yyreturn:
1844 if (yychar != YYEMPTY)
1845 {
1846 /* Make sure we have latest lookahead translation. See comments at
1847 user semantic actions for why this is necessary. */
1848 yytoken = YYTRANSLATE (yychar);
1849 yydestruct ("Cleanup: discarding lookahead",
1850 yytoken, &yylval);
1851 }
1852 /* Do not reclaim the symbols of the rule whose action triggered
1853 this YYABORT or YYACCEPT. */
1854 YYPOPSTACK (yylen);
1855 YY_STACK_PRINT (yyss, yyssp);
1856 while (yyssp != yyss)
1857 {
1858 yydestruct ("Cleanup: popping",
1859 yystos[*yyssp], yyvsp);
1860 YYPOPSTACK (1);
1861 }
1862#ifndef yyoverflow
1863 if (yyss != yyssa)
1864 YYSTACK_FREE (yyss);
1865#endif
1866#if YYERROR_VERBOSE
1867 if (yymsg != yymsgbuf)
1868 YYSTACK_FREE (yymsg);
1869#endif
1870 return yyresult;
1871}
1872#line 300 "parsedate.y" /* yacc.c:1906 */
1873
1874
1875/* Month and day table. */
1877 { "january", tMONTH, 1 },
1878 { "february", tMONTH, 2 },
1879 { "march", tMONTH, 3 },
1880 { "april", tMONTH, 4 },
1881 { "may", tMONTH, 5 },
1882 { "june", tMONTH, 6 },
1883 { "july", tMONTH, 7 },
1884 { "august", tMONTH, 8 },
1885 { "september", tMONTH, 9 },
1886 { "october", tMONTH, 10 },
1887 { "november", tMONTH, 11 },
1888 { "december", tMONTH, 12 },
1889 /* The value of the day isn't used... */
1890 { "sunday", tDAY, 0 },
1891 { "monday", tDAY, 0 },
1892 { "tuesday", tDAY, 0 },
1893 { "wednesday", tDAY, 0 },
1894 { "thursday", tDAY, 0 },
1895 { "friday", tDAY, 0 },
1896 { "saturday", tDAY, 0 },
1897};
1898
1899/* Time units table. */
1900static TABLE UnitsTable[] = {
1901 { "year", tMONTH_UNIT, 12 },
1902 { "month", tMONTH_UNIT, 1 },
1903 { "week", tSEC_UNIT, 7L * 24 * 60 * 60 },
1904 { "day", tSEC_UNIT, 1L * 24 * 60 * 60 },
1905 { "hour", tSEC_UNIT, 60 * 60 },
1906 { "minute", tSEC_UNIT, 60 },
1907 { "min", tSEC_UNIT, 60 },
1908 { "second", tSEC_UNIT, 1 },
1909 { "sec", tSEC_UNIT, 1 },
1910};
1911
1912/* Timezone table. */
1914 { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */
1915 { "ut", tZONE, HOUR( 0) }, /* Universal */
1916 { "utc", tZONE, HOUR( 0) }, /* Universal Coordinated */
1917 { "cut", tZONE, HOUR( 0) }, /* Coordinated Universal */
1918 { "z", tZONE, HOUR( 0) }, /* Greenwich Mean */
1919 { "wet", tZONE, HOUR( 0) }, /* Western European */
1920 { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */
1921 { "nst", tZONE, HOUR(3)+30 }, /* Newfoundland Standard */
1922 { "ndt", tDAYZONE, HOUR(3)+30 }, /* Newfoundland Daylight */
1923 { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */
1924 { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */
1925 { "est", tZONE, HOUR( 5) }, /* Eastern Standard */
1926 { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */
1927 { "cst", tZONE, HOUR( 6) }, /* Central Standard */
1928 { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */
1929 { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */
1930 { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */
1931 { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */
1932 { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */
1933 { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */
1934 { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */
1935 { "akst", tZONE, HOUR( 9) }, /* Alaska Standard */
1936 { "akdt", tDAYZONE, HOUR( 9) }, /* Alaska Daylight */
1937 { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */
1938 { "hast", tZONE, HOUR(10) }, /* Hawaii-Aleutian Standard */
1939 { "hadt", tDAYZONE, HOUR(10) }, /* Hawaii-Aleutian Daylight */
1940 { "ces", tDAYZONE, -HOUR(1) }, /* Central European Summer */
1941 { "cest", tDAYZONE, -HOUR(1) }, /* Central European Summer */
1942 { "mez", tZONE, -HOUR(1) }, /* Middle European */
1943 { "mezt", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
1944 { "cet", tZONE, -HOUR(1) }, /* Central European */
1945 { "met", tZONE, -HOUR(1) }, /* Middle European */
1946 { "eet", tZONE, -HOUR(2) }, /* Eastern Europe */
1947 { "msk", tZONE, -HOUR(3) }, /* Moscow Winter */
1948 { "msd", tDAYZONE, -HOUR(3) }, /* Moscow Summer */
1949 { "wast", tZONE, -HOUR(8) }, /* West Australian Standard */
1950 { "wadt", tDAYZONE, -HOUR(8) }, /* West Australian Daylight */
1951 { "hkt", tZONE, -HOUR(8) }, /* Hong Kong */
1952 { "cct", tZONE, -HOUR(8) }, /* China Coast */
1953 { "jst", tZONE, -HOUR(9) }, /* Japan Standard */
1954 { "kst", tZONE, -HOUR(9) }, /* Korean Standard */
1955 { "kdt", tZONE, -HOUR(9) }, /* Korean Daylight */
1956 { "cast", tZONE, -(HOUR(9)+30) }, /* Central Australian Standard */
1957 { "cadt", tDAYZONE, -(HOUR(9)+30) }, /* Central Australian Daylight */
1958 { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */
1959 { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */
1960 { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */
1961 { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */
1962
1963 /* For completeness we include the following entries. */
1964#if 0
1965
1966 /* Duplicate names. Either they conflict with a zone listed above
1967 * (which is either more likely to be seen or just been in circulation
1968 * longer), or they conflict with another zone in this section and
1969 * we could not reasonably choose one over the other. */
1970 { "fst", tZONE, HOUR( 2) }, /* Fernando De Noronha Standard */
1971 { "fdt", tDAYZONE, HOUR( 2) }, /* Fernando De Noronha Daylight */
1972 { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */
1973 { "est", tZONE, HOUR( 3) }, /* Eastern Standard (Brazil) */
1974 { "edt", tDAYZONE, HOUR( 3) }, /* Eastern Daylight (Brazil) */
1975 { "wst", tZONE, HOUR( 4) }, /* Western Standard (Brazil) */
1976 { "wdt", tDAYZONE, HOUR( 4) }, /* Western Daylight (Brazil) */
1977 { "cst", tZONE, HOUR( 5) }, /* Chile Standard */
1978 { "cdt", tDAYZONE, HOUR( 5) }, /* Chile Daylight */
1979 { "ast", tZONE, HOUR( 5) }, /* Acre Standard */
1980 { "adt", tDAYZONE, HOUR( 5) }, /* Acre Daylight */
1981 { "cst", tZONE, HOUR( 5) }, /* Cuba Standard */
1982 { "cdt", tDAYZONE, HOUR( 5) }, /* Cuba Daylight */
1983 { "est", tZONE, HOUR( 6) }, /* Easter Island Standard */
1984 { "edt", tDAYZONE, HOUR( 6) }, /* Easter Island Daylight */
1985 { "sst", tZONE, HOUR(11) }, /* Samoa Standard */
1986 { "ist", tZONE, -HOUR(2) }, /* Israel Standard */
1987 { "idt", tDAYZONE, -HOUR(2) }, /* Israel Daylight */
1988 { "idt", tDAYZONE, -(HOUR(3)+30) }, /* Iran Daylight */
1989 { "ist", tZONE, -(HOUR(3)+30) }, /* Iran Standard */
1990 { "cst", tZONE, -HOUR(8) }, /* China Standard */
1991 { "cdt", tDAYZONE, -HOUR(8) }, /* China Daylight */
1992 { "sst", tZONE, -HOUR(8) }, /* Singapore Standard */
1993
1994 /* Dubious (e.g., not in Olson's TIMEZONE package) or obsolete. */
1995 { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */
1996 { "wat", tZONE, -HOUR(1) }, /* West Africa */
1997 { "at", tZONE, HOUR( 2) }, /* Azores */
1998 { "gst", tZONE, -HOUR(10) }, /* Guam Standard */
1999 { "nft", tZONE, HOUR(3)+30 }, /* Newfoundland */
2000 { "idlw", tZONE, HOUR(12) }, /* International Date Line West */
2001 { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */
2002 { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
2003 { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */
2004 { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */
2005 { "fwt", tZONE, -HOUR(1) }, /* French Winter */
2006 { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */
2007 { "bt", tZONE, -HOUR(3) }, /* Baghdad */
2008 { "it", tZONE, -(HOUR(3)+30) }, /* Iran */
2009 { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */
2010 { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */
2011 { "ist", tZONE, -(HOUR(5)+30) }, /* Indian Standard */
2012 { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */
2013 { "nst", tZONE, -HOUR(7) }, /* North Sumatra */
2014 { "sst", tZONE, -HOUR(7) }, /* South Sumatra */
2015 { "jt", tZONE, -(HOUR(7)+30) }, /* Java (3pm in Cronusland!) */
2016 { "nzt", tZONE, -HOUR(12) }, /* New Zealand */
2017 { "idle", tZONE, -HOUR(12) }, /* International Date Line East */
2018 { "cat", tZONE, HOUR(10) }, /* -- expired 1967 */
2019 { "nt", tZONE, HOUR(11) }, /* -- expired 1967 */
2020 { "ahst", tZONE, HOUR(10) }, /* -- expired 1983 */
2021 { "hdt", tDAYZONE, HOUR(10) }, /* -- expired 1986 */
2022#endif /* 0 */
2023};
2024
2025
2026/* ARGSUSED */
2027static void
2029{
2030 /* NOTREACHED */
2031}
2032
2033
2034static time_t
2035ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian)
2036{
2037 if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 61)
2038 return -1;
2039 if (Meridian == MER24) {
2040 if (Hours < 0 || Hours > 23)
2041 return -1;
2042 }
2043 else {
2044 if (Hours < 1 || Hours > 12)
2045 return -1;
2046 if (Hours == 12)
2047 Hours = 0;
2048 if (Meridian == MERpm)
2049 Hours += 12;
2050 }
2051 return (Hours * 60L + Minutes) * 60L + Seconds;
2052}
2053
2054
2055static time_t
2056Convert(time_t Month, time_t Day, time_t Year,
2057 time_t Hours, time_t Minutes, time_t Seconds,
2058 MERIDIAN Meridian, DSTMODE dst)
2059{
2060 static int DaysNormal[13] = {
2061 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
2062 };
2063 static int DaysLeap[13] = {
2064 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
2065 };
2066 static int LeapYears[] = {
2067 1972, 1976, 1980, 1984, 1988, 1992, 1996,
2068 2000, 2004, 2008, 2012, 2016, 2020, 2024, 2028, 2032, 2036
2069 };
2070 register int *yp;
2071 register int *mp;
2072 register time_t Julian;
2073 register int i;
2074 time_t tod;
2075
2076 if (Year < 0)
2077 Year = -Year;
2078 if (Year < 100)
2079 Year += 1900;
2080 if (Year < EPOCH)
2081 Year += 100;
2082 for (mp = DaysNormal, yp = LeapYears; yp < ENDOF(LeapYears); yp++)
2083 if (Year == *yp) {
2084 mp = DaysLeap;
2085 break;
2086 }
2087 if (Year < EPOCH || Year > END_OF_TIME
2088 || Month < 1 || Month > 12
2089 /* NOSTRICT *//* conversion from long may lose accuracy */
2090 || Day < 1 || Day > mp[(int)Month])
2091 return -1;
2092
2093 Julian = Day - 1 + (Year - EPOCH) * 365;
2094 for (yp = LeapYears; yp < ENDOF(LeapYears); yp++, Julian++)
2095 if (Year <= *yp)
2096 break;
2097 for (i = 1; i < Month; i++)
2098 Julian += *++mp;
2099 Julian *= SECSPERDAY;
2100 Julian += yyTimezone * 60L;
2101 if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
2102 return -1;
2103 Julian += tod;
2104 tod = Julian;
2105 if (dst == DSTon || (dst == DSTmaybe && localtime(&tod)->tm_isdst))
2106 Julian -= DST_OFFSET * 60L * 60L;
2107 return Julian;
2108}
2109
2110
2111static time_t
2112DSTcorrect(time_t Start, time_t Future)
2113{
2114 time_t StartDay;
2115 time_t FutureDay;
2116
2117 StartDay = (localtime(&Start)->tm_hour + 1) % 24;
2118 FutureDay = (localtime(&Future)->tm_hour + 1) % 24;
2119 return (Future - Start) + (StartDay - FutureDay) * DST_OFFSET * 60L * 60L;
2120}
2121
2122
2123static time_t
2124RelativeMonth(time_t Start, time_t RelMonth)
2125{
2126 struct tm *tm;
2127 time_t Month;
2128 time_t Year;
2129
2130 tm = localtime(&Start);
2131 Month = 12 * tm->tm_year + tm->tm_mon + RelMonth;
2132 Year = Month / 12;
2133 Month = Month % 12 + 1;
2134 return DSTcorrect(Start,
2135 Convert(Month, (time_t)tm->tm_mday, Year,
2136 (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec,
2137 MER24, DSTmaybe));
2138}
2139
2140
2141static int
2142LookupWord(char *buff, register int length)
2143{
2144 register char *p;
2145 register char *q;
2146 register TABLE *tp;
2147 register int c;
2148
2149 p = buff;
2150 c = p[0];
2151
2152 /* See if we have an abbreviation for a month. */
2153 if (length == 3 || (length == 4 && p[3] == '.'))
2154 for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++) {
2155 q = tp->name;
2156 if (c == q[0] && p[1] == q[1] && p[2] == q[2]) {
2157 yylval.Number = tp->value;
2158 return tp->type;
2159 }
2160 }
2161 else
2162 for (tp = MonthDayTable; tp < ENDOF(MonthDayTable); tp++)
2163 if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
2164 yylval.Number = tp->value;
2165 return tp->type;
2166 }
2167
2168 /* Try for a timezone. */
2169 for (tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++)
2170 if (c == tp->name[0] && p[1] == tp->name[1]
2171 && strcmp(p, tp->name) == 0) {
2172 yylval.Number = tp->value;
2173 return tp->type;
2174 }
2175
2176 /* Try the units table. */
2177 for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++)
2178 if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
2179 yylval.Number = tp->value;
2180 return tp->type;
2181 }
2182
2183 /* Strip off any plural and try the units table again. */
2184 if (--length > 0 && p[length] == 's') {
2185 p[length] = '\0';
2186 for (tp = UnitsTable; tp < ENDOF(UnitsTable); tp++)
2187 if (c == tp->name[0] && strcmp(p, tp->name) == 0) {
2188 p[length] = 's';
2189 yylval.Number = tp->value;
2190 return tp->type;
2191 }
2192 p[length] = 's';
2193 }
2194 length++;
2195
2196 /* Drop out any periods. */
2197 for (p = buff, q = (char*)buff; *q; q++)
2198 if (*q != '.')
2199 *p++ = *q;
2200 *p = '\0';
2201
2202 /* Try the meridians. */
2203 if (buff[1] == 'm' && buff[2] == '\0') {
2204 if (buff[0] == 'a') {
2206 return tMERIDIAN;
2207 }
2208 if (buff[0] == 'p') {
2210 return tMERIDIAN;
2211 }
2212 }
2213
2214 /* If we saw any periods, try the timezones again. */
2215 if (p - buff != length) {
2216 c = buff[0];
2217 for (p = buff, tp = TimezoneTable; tp < ENDOF(TimezoneTable); tp++)
2218 if (c == tp->name[0] && p[1] == tp->name[1]
2219 && strcmp(p, tp->name) == 0) {
2220 yylval.Number = tp->value;
2221 return tp->type;
2222 }
2223 }
2224
2225 /* Unknown word -- assume GMT timezone. */
2226 yylval.Number = 0;
2227 return tZONE;
2228}
2229
2230
2231int
2233{
2234 register char c;
2235 register char *p;
2236 char buff[20];
2237 register int sign;
2238 register int i;
2239 register int nesting;
2240
2241 for ( ; ; ) {
2242 /* Get first character after the whitespace. */
2243 for ( ; ; ) {
2244 while (isspace(*yyInput))
2245 yyInput++;
2246 c = *yyInput;
2247
2248 /* Ignore RFC 822 comments, typically time zone names. */
2249 if (c != LPAREN)
2250 break;
2251 for (nesting = 1; (c = *++yyInput) != RPAREN || --nesting; )
2252 if (c == LPAREN)
2253 nesting++;
2254 else if (!IS7BIT(c) || c == '\0' || c == '\r'
2255 || (c == '\\' && ((c = *++yyInput) == '\0' || !IS7BIT(c))))
2256 /* Lexical error: bad comment. */
2257 return '?';
2258 yyInput++;
2259 }
2260
2261 /* A number? */
2262 if (isdigit(c) || c == '-' || c == '+') {
2263 if (c == '-' || c == '+') {
2264 sign = c == '-' ? -1 : 1;
2265 yyInput++;
2266 if (!isdigit(*yyInput))
2267 /* Skip the plus or minus sign. */
2268 continue;
2269 }
2270 else
2271 sign = 0;
2272 for (i = 0; (c = *yyInput++) != '\0' && isdigit(c); )
2273 i = 10 * i + c - '0';
2274 yyInput--;
2275 yylval.Number = sign < 0 ? -i : i;
2276 return sign ? tSNUMBER : tUNUMBER;
2277 }
2278
2279 /* A word? */
2280 if (isalpha(c)) {
2281 for (p = buff; (c = *yyInput++) == '.' || isalpha(c); )
2282 if (p < &buff[sizeof buff - 1])
2283 *p++ = isupper(c) ? tolower(c) : c;
2284 *p = '\0';
2285 yyInput--;
2286 return LookupWord(buff, p - buff);
2287 }
2288
2289 return *yyInput++;
2290 }
2291}
2292
2293
2294time_t
2295parsedate(const char *p)
2296{
2297 extern int date_parse(void);
2298 time_t Start;
2299
2300 yyInput = p; /* well, its supposed to be const... */
2301
2302 yyYear = 0;
2303 yyMonth = 0;
2304 yyDay = 0;
2305 yyTimezone = 0;
2307 yyHour = 0;
2308 yyMinutes = 0;
2309 yySeconds = 0;
2310 yyMeridian = MER24;
2311 yyRelSeconds = 0;
2312 yyRelMonth = 0;
2313 yyHaveDate = 0;
2314 yyHaveRel = 0;
2315 yyHaveTime = 0;
2316
2317 if (date_parse() || yyHaveTime > 1 || yyHaveDate > 1)
2318 return -1;
2319
2320 if (yyHaveDate || yyHaveTime) {
2323 if (Start < 0)
2324 return -1;
2325 }
2326 else
2327 return -1;
2328
2329 Start += yyRelSeconds;
2330 if (yyRelMonth)
2331 Start += RelativeMonth(Start, yyRelMonth);
2332
2333 /* Have to do *something* with a legitimate -1 so it's distinguishable
2334 * from the error return value. (Alternately could set errno on error.) */
2335 return Start == -1 ? 0 : Start;
2336}
2337
2338
2339#ifdef TEST
2340
2341#if YYDEBUG
2342extern int yydebug;
2343#endif /* YYDEBUG */
2344
2345/* ARGSUSED */
2346int
2347main(int ac, char *av[])
2348{
2349 char buff[128];
2350 time_t d;
2351
2352#if YYDEBUG
2353 yydebug = 1;
2354#endif /* YYDEBUG */
2355
2356 (void)printf("Enter date, or blank line to exit.\n\t> ");
2357 for ( ; ; ) {
2358 (void)printf("\t> ");
2359 (void)fflush(stdout);
2360 if (fgets(buff, sizeof buff, stdin) == NULL || buff[0] == '\n')
2361 break;
2362#if YYDEBUG
2363 if (strcmp(buff, "yydebug") == 0) {
2364 yydebug = !yydebug;
2365 printf("yydebug = %s\n", yydebug ? "on" : "off");
2366 continue;
2367 }
2368#endif /* YYDEBUG */
2369 d = parsedate(buff, (TIMEINFO *)NULL);
2370 if (d == -1)
2371 (void)printf("Bad format - couldn't convert.\n");
2372 else
2373 (void)printf("%s", ctime(&d));
2374 }
2375
2376 exit(0);
2377 /* NOTREACHED */
2378}
2379#endif /* TEST */
int main(int argc, char **argv)
Definition: chkpw.c:107
unsigned short int yytype_uint16
Definition: parsedate.c:280
#define SECSPERDAY
Definition: parsedate.c:118
#define tDAY
Definition: parsedate.c:222
#define EPOCH
Definition: parsedate.c:114
static const yytype_uint8 yyr1[]
Definition: parsedate.c:664
int yynerrs
Definition: parsedate.c:1112
#define tMERIDIAN
Definition: parsedate.c:224
static int LookupWord(char *buff, register int length)
Definition: parsedate.c:2142
#define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
Definition: parsedate.c:362
#define tMONTH
Definition: parsedate.c:225
#define YYMAXDEPTH
Definition: parsedate.c:860
yytokentype
Definition: parsedate.c:209
static TABLE UnitsTable[]
Definition: parsedate.c:1900
static TABLE MonthDayTable[]
Definition: parsedate.c:1876
#define YYSTACK_FREE
Definition: parsedate.c:410
#define YY_SYMBOL_PRINT(Title, Type, Value, Location)
Definition: parsedate.c:841
static time_t yyDay
Definition: parsedate.c:165
#define YY_(Msgid)
Definition: parsedate.c:312
#define tMONTH_UNIT
Definition: parsedate.c:226
enum _MERIDIAN MERIDIAN
#define YY_IGNORE_MAYBE_UNINITIALIZED_END
Definition: parsedate.c:363
#define tSNUMBER
Definition: parsedate.c:228
static time_t yySeconds
Definition: parsedate.c:169
#define YYUSE(E)
Definition: parsedate.c:345
#define HOUR(x)
Definition: parsedate.c:120
static const yytype_uint8 yytranslate[]
Definition: parsedate.c:522
#define YYEOF
Definition: parsedate.c:685
#define YYABORT
Definition: parsedate.c:688
#define yypact_value_is_default(Yystate)
Definition: parsedate.c:588
#define YYSTACK_BYTES(N)
Definition: parsedate.c:454
static const yytype_int8 yycheck[]
Definition: parsedate.c:643
#define YY_REDUCE_PRINT(Rule)
Definition: parsedate.c:843
#define IS7BIT(x)
Definition: parsedate.c:124
static int yyHaveTime
Definition: parsedate.c:163
void * malloc(size_t)
#define END_OF_TIME
Definition: parsedate.c:115
YYSTYPE yylval
Definition: parsedate.c:1110
#define tSEC_UNIT
Definition: parsedate.c:227
#define yylex
Definition: parsedate.c:109
#define YY_NULLPTR
Definition: parsedate.c:184
#define DST_OFFSET
Definition: parsedate.c:117
#define tDAYZONE
Definition: parsedate.c:223
static time_t Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian, DSTMODE dst)
Definition: parsedate.c:2056
static const yytype_int8 yypact[]
Definition: parsedate.c:598
#define tZONE
Definition: parsedate.c:230
#define RPAREN
Definition: parsedate.c:123
static time_t yyTimezone
Definition: parsedate.c:164
#define YYFINAL
Definition: parsedate.c:499
static MERIDIAN yyMeridian
Definition: parsedate.c:171
static void yydestruct(const char *yymsg, int yytype, YYSTYPE *yyvaluep)
Definition: parsedate.c:1091
static time_t yyRelSeconds
Definition: parsedate.c:173
time_t parsedate(const char *p)
Definition: parsedate.c:2295
#define yyparse
Definition: parsedate.c:108
static time_t ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian)
Definition: parsedate.c:2035
#define YYNTOKENS
Definition: parsedate.c:504
static DSTMODE yyDSTmode
Definition: parsedate.c:160
unsigned char yytype_uint8
Definition: parsedate.c:268
#define YY_STACK_PRINT(Bottom, Top)
Definition: parsedate.c:842
struct _TABLE TABLE
static int yyHaveDate
Definition: parsedate.c:161
#define YYSIZE_T
Definition: parsedate.c:296
static int yyHaveRel
Definition: parsedate.c:162
#define YYSTACK_ALLOC_MAXIMUM
Definition: parsedate.c:412
static time_t yyMonth
Definition: parsedate.c:168
static time_t yyYear
Definition: parsedate.c:170
_MERIDIAN
Definition: parsedate.c:149
@ MERam
Definition: parsedate.c:150
@ MERpm
Definition: parsedate.c:150
@ MER24
Definition: parsedate.c:150
int yychar
Definition: parsedate.c:1107
static const yytype_uint8 yyr2[]
Definition: parsedate.c:673
#define YYACCEPT
Definition: parsedate.c:687
int date_parse(void)
Definition: parsedate.c:1120
static TABLE TimezoneTable[]
Definition: parsedate.c:1913
#define YYTRANSLATE(YYX)
Definition: parsedate.c:517
static const yytype_int8 yypgoto[]
Definition: parsedate.c:620
static const yytype_uint8 yystos[]
Definition: parsedate.c:654
#define LPAREN
Definition: parsedate.c:122
#define ENDOF(array)
Definition: parsedate.c:127
static const char * yyInput
Definition: parsedate.c:159
static time_t yyHour
Definition: parsedate.c:166
static time_t yyRelMonth
Definition: parsedate.c:172
#define YYTERROR
Definition: parsedate.c:712
#define YYPOPSTACK(N)
_DSTMODE
Definition: parsedate.c:142
@ DSToff
Definition: parsedate.c:143
@ DSTmaybe
Definition: parsedate.c:143
@ DSTon
Definition: parsedate.c:143
static const yytype_int8 yydefgoto[]
Definition: parsedate.c:626
short int yytype_int16
Definition: parsedate.c:286
#define YYEMPTY
Definition: parsedate.c:684
#define YYLAST
Definition: parsedate.c:501
static void date_error(char *)
Definition: parsedate.c:2028
#define YYSTACK_RELOCATE(Stack_alloc, Stack)
Definition: parsedate.c:465
static time_t DSTcorrect(time_t Start, time_t Future)
Definition: parsedate.c:2112
#define YYINITDEPTH
Definition: parsedate.c:849
static const yytype_uint8 yytable[]
Definition: parsedate.c:634
static time_t RelativeMonth(time_t Start, time_t RelMonth)
Definition: parsedate.c:2124
signed char yytype_int8
Definition: parsedate.c:274
void free(void *)
#define YYERROR
Definition: parsedate.c:689
#define yytable_value_is_error(Yytable_value)
Definition: parsedate.c:593
#define tUNUMBER
Definition: parsedate.c:229
int date_lex(void)
Definition: parsedate.c:2232
#define YYSTACK_ALLOC
Definition: parsedate.c:409
static time_t yyMinutes
Definition: parsedate.c:167
#define YYDPRINTF(Args)
Definition: parsedate.c:840
static const yytype_uint8 yydefact[]
Definition: parsedate.c:610
enum _DSTMODE DSTMODE
#define yyerror
Definition: parsedate.c:110
char * name
Definition: parsedate.c:134
time_t value
Definition: parsedate.c:136
int type
Definition: parsedate.c:135
enum _MERIDIAN Meridian
Definition: parsedate.c:240
time_t Number
Definition: parsedate.c:239
yytype_int16 yyss_alloc
Definition: parsedate.c:445
YYSTYPE yyvs_alloc
Definition: parsedate.c:446