diff options
Diffstat (limited to 'source/modules/getdate.c')
| -rw-r--r-- | source/modules/getdate.c | 2460 |
1 files changed, 0 insertions, 2460 deletions
diff --git a/source/modules/getdate.c b/source/modules/getdate.c deleted file mode 100644 index 491c51294e9..00000000000 --- a/source/modules/getdate.c +++ /dev/null @@ -1,2460 +0,0 @@ -/* A Bison parser, made by GNU Bison 1.875a. */ - -/* Skeleton parser for Yacc-like parsing with Bison, - Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* As a special exception, when this file is copied by Bison into a - Bison output file, you may use that output file without restriction. - This special exception was added by the Free Software Foundation - in version 1.24 of Bison. */ - -/* Written by Richard Stallman by simplifying the original so called - ``semantic'' parser. */ - -/* All symbols defined below should begin with yy or YY, to avoid - infringing on user name space. This should be done even for local - variables, as they might otherwise be expanded by user macros. - There are some unavoidable exceptions within include files to - define necessary library symbols; they are noted "INFRINGES ON - USER NAME SPACE" below. */ - -/* Identify Bison output. */ -#define YYBISON 1 - -/* Skeleton name. */ -#define YYSKELETON_NAME "yacc.c" - -/* Pure parsers. */ -#define YYPURE 1 - -/* Using locations. */ -#define YYLSP_NEEDED 0 - - - -/* Tokens. */ -#ifndef YYTOKENTYPE -# define YYTOKENTYPE - /* Put the tokens into the symbol table, so that GDB and other debuggers - know about them. */ - enum yytokentype { - tAGO = 258, - tDST = 259, - tDAY = 260, - tDAY_UNIT = 261, - tDAYZONE = 262, - tHOUR_UNIT = 263, - tLOCAL_ZONE = 264, - tMERIDIAN = 265, - tMINUTE_UNIT = 266, - tMONTH = 267, - tMONTH_UNIT = 268, - tSEC_UNIT = 269, - tYEAR_UNIT = 270, - tZONE = 271, - tSNUMBER = 272, - tUNUMBER = 273 - }; -#endif -#define tAGO 258 -#define tDST 259 -#define tDAY 260 -#define tDAY_UNIT 261 -#define tDAYZONE 262 -#define tHOUR_UNIT 263 -#define tLOCAL_ZONE 264 -#define tMERIDIAN 265 -#define tMINUTE_UNIT 266 -#define tMONTH 267 -#define tMONTH_UNIT 268 -#define tSEC_UNIT 269 -#define tYEAR_UNIT 270 -#define tZONE 271 -#define tSNUMBER 272 -#define tUNUMBER 273 - - - - -/* Copy the first part of user declarations. */ -#line 1 "getdate.y" - -/* Parse a string into an internal time stamp. - Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Originally written by Steven M. Bellovin <smb@research.att.com> while - at the University of North Carolina at Chapel Hill. Later tweaked by - a couple of people on Usenet. Completely overhauled by Rich $alz - <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990. - - Modified by Paul Eggert <eggert@twinsun.com> in August 1999 to do - the right thing about local DST. Unlike previous versions, this - version is reentrant. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# endif -#endif - -/* Since the code of getdate.y is not included in the Emacs executable - itself, there is no need to #define static in this file. Even if - the code were included in the Emacs executable, it probably - wouldn't do any harm to #undef it here; this will only cause - problems if we try to write to a static variable, which I don't - think this code needs to do. */ -#ifdef emacs -# undef static -#endif - -#include <ctype.h> - -#if HAVE_STDLIB_H -# include <stdlib.h> /* for `free'; used by Bison 1.27 */ -#endif - -#if STDC_HEADERS || (! defined isascii && ! HAVE_ISASCII) -# define IN_CTYPE_DOMAIN(c) 1 -#else -# define IN_CTYPE_DOMAIN(c) isascii (c) -#endif - -#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c)) -#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c)) -#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c)) -#define ISDIGIT_LOCALE(c) (IN_CTYPE_DOMAIN (c) && isdigit (c)) - -/* ISDIGIT differs from ISDIGIT_LOCALE, as follows: - - Its arg may be any int or unsigned int; it need not be an unsigned char. - - It's guaranteed to evaluate its argument exactly once. - - It's typically faster. - POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to - ISDIGIT_LOCALE unless it's important to use the locale's definition - of `digit' even when the host does not conform to POSIX. */ -#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) - -#if STDC_HEADERS || HAVE_STRING_H -# include <string.h> -#endif - -#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__ -# define __attribute__(x) -#endif - -#ifndef ATTRIBUTE_UNUSED -# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) -#endif - -#define EPOCH_YEAR 1970 -#define TM_YEAR_BASE 1900 - -#define HOUR(x) ((x) * 60) - -/* An integer value, and the number of digits in its textual - representation. */ -typedef struct -{ - int value; - int digits; -} textint; - -/* An entry in the lexical lookup table. */ -typedef struct -{ - char const *name; - int type; - int value; -} table; - -/* Meridian: am, pm, or 24-hour style. */ -enum { MERam, MERpm, MER24 }; - -/* Information passed to and from the parser. */ -typedef struct -{ - /* The input string remaining to be parsed. */ - const char *input; - - /* N, if this is the Nth Tuesday. */ - int day_ordinal; - - /* Day of week; Sunday is 0. */ - int day_number; - - /* tm_isdst flag for the local zone. */ - int local_isdst; - - /* Time zone, in minutes east of UTC. */ - int time_zone; - - /* Style used for time. */ - int meridian; - - /* Gregorian year, month, day, hour, minutes, and seconds. */ - textint year; - int month; - int day; - int hour; - int minutes; - int seconds; - - /* Relative year, month, day, hour, minutes, and seconds. */ - int rel_year; - int rel_month; - int rel_day; - int rel_hour; - int rel_minutes; - int rel_seconds; - - /* Counts of nonterminals of various flavors parsed so far. */ - int dates_seen; - int days_seen; - int local_zones_seen; - int rels_seen; - int times_seen; - int zones_seen; - - /* Table of local time zone abbrevations, terminated by a null entry. */ - table local_time_zone_table[3]; -} parser_control; - -#define PC (* (parser_control *) parm) -#define YYLEX_PARAM parm -#define YYPARSE_PARAM parm - -static int yyerror (); -static int yylex (); - - - -/* Enabling traces. */ -#ifndef YYDEBUG -# define YYDEBUG 0 -#endif - -/* Enabling verbose error messages. */ -#ifdef YYERROR_VERBOSE -# undef YYERROR_VERBOSE -# define YYERROR_VERBOSE 1 -#else -# define YYERROR_VERBOSE 0 -#endif - -#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) -#line 172 "getdate.y" -typedef union YYSTYPE { - int intval; - textint textintval; -} YYSTYPE; -/* Line 191 of yacc.c. */ -#line 281 "getdate.c" -# define yystype YYSTYPE /* obsolescent; will be withdrawn */ -# define YYSTYPE_IS_DECLARED 1 -# define YYSTYPE_IS_TRIVIAL 1 -#endif - - - -/* Copy the second part of user declarations. */ - - -/* Line 214 of yacc.c. */ -#line 293 "getdate.c" - -#if ! defined (yyoverflow) || YYERROR_VERBOSE - -/* The parser invokes alloca or malloc; define the necessary symbols. */ - -# if YYSTACK_USE_ALLOCA -# define YYSTACK_ALLOC alloca -# else -# ifndef YYSTACK_USE_ALLOCA -# if defined (alloca) || defined (_ALLOCA_H) -# define YYSTACK_ALLOC alloca -# else -# ifdef __GNUC__ -# define YYSTACK_ALLOC __builtin_alloca -# endif -# endif -# endif -# endif - -# ifdef YYSTACK_ALLOC - /* Pacify GCC's `empty if-body' warning. */ -# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) -# else -# if defined (__STDC__) || defined (__cplusplus) -# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -# define YYSTACK_ALLOC malloc -# define YYSTACK_FREE free -# endif -#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ - - -#if (! defined (yyoverflow) \ - && (! defined (__cplusplus) \ - || (YYSTYPE_IS_TRIVIAL))) - -/* A type that is properly aligned for any stack member. */ -union yyalloc -{ - short yyss; - YYSTYPE yyvs; - }; - -/* The size of the maximum gap between one aligned stack and the next. */ -# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) - -/* The size of an array large to enough to hold all stacks, each with - N elements. */ -# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ - + YYSTACK_GAP_MAXIMUM) - -/* Copy COUNT objects from FROM to TO. The source and destination do - not overlap. */ -# ifndef YYCOPY -# if 1 < __GNUC__ -# define YYCOPY(To, From, Count) \ - __builtin_memcpy (To, From, (Count) * sizeof (*(From))) -# else -# define YYCOPY(To, From, Count) \ - do \ - { \ - register YYSIZE_T yyi; \ - for (yyi = 0; yyi < (Count); yyi++) \ - (To)[yyi] = (From)[yyi]; \ - } \ - while (0) -# endif -# endif - -/* Relocate STACK from its old location to the new one. The - local variables YYSIZE and YYSTACKSIZE give the old and new number of - elements in the stack, and YYPTR gives the new location of the - stack. Advance YYPTR to a properly aligned location for the next - stack. */ -# define YYSTACK_RELOCATE(Stack) \ - do \ - { \ - YYSIZE_T yynewbytes; \ - YYCOPY (&yyptr->Stack, Stack, yysize); \ - Stack = &yyptr->Stack; \ - yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ - yyptr += yynewbytes / sizeof (*yyptr); \ - } \ - while (0) - -#endif - -#if defined (__STDC__) || defined (__cplusplus) - typedef signed char yysigned_char; -#else - typedef short yysigned_char; -#endif - -/* YYFINAL -- State number of the termination state. */ -#define YYFINAL 2 -/* YYLAST -- Last index in YYTABLE. */ -#define YYLAST 52 - -/* YYNTOKENS -- Number of terminals. */ -#define YYNTOKENS 22 -/* YYNNTS -- Number of nonterminals. */ -#define YYNNTS 12 -/* YYNRULES -- Number of rules. */ -#define YYNRULES 54 -/* YYNRULES -- Number of states. */ -#define YYNSTATES 64 - -/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ -#define YYUNDEFTOK 2 -#define YYMAXUTOK 273 - -#define YYTRANSLATE(YYX) \ - ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) - -/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ -static const unsigned char yytranslate[] = -{ - 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 20, 2, 2, 21, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 19, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, - 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, - 15, 16, 17, 18 -}; - -#if YYDEBUG -/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in - YYRHS. */ -static const unsigned char yyprhs[] = -{ - 0, 0, 3, 4, 7, 9, 11, 13, 15, 17, - 19, 21, 24, 29, 34, 41, 48, 50, 53, 55, - 57, 60, 62, 65, 68, 72, 78, 82, 86, 89, - 94, 97, 101, 104, 106, 109, 112, 114, 117, 120, - 122, 125, 128, 130, 133, 136, 138, 141, 144, 146, - 149, 152, 154, 156, 157 -}; - -/* YYRHS -- A `-1'-separated list of the rules' RHS. */ -static const yysigned_char yyrhs[] = -{ - 23, 0, -1, -1, 23, 24, -1, 25, -1, 26, - -1, 27, -1, 29, -1, 28, -1, 30, -1, 32, - -1, 18, 10, -1, 18, 19, 18, 33, -1, 18, - 19, 18, 17, -1, 18, 19, 18, 19, 18, 33, - -1, 18, 19, 18, 19, 18, 17, -1, 9, -1, - 9, 4, -1, 16, -1, 7, -1, 16, 4, -1, - 5, -1, 5, 20, -1, 18, 5, -1, 18, 21, - 18, -1, 18, 21, 18, 21, 18, -1, 18, 17, - 17, -1, 18, 12, 17, -1, 12, 18, -1, 12, - 18, 20, 18, -1, 18, 12, -1, 18, 12, 18, - -1, 31, 3, -1, 31, -1, 18, 15, -1, 17, - 15, -1, 15, -1, 18, 13, -1, 17, 13, -1, - 13, -1, 18, 6, -1, 17, 6, -1, 6, -1, - 18, 8, -1, 17, 8, -1, 8, -1, 18, 11, - -1, 17, 11, -1, 11, -1, 18, 14, -1, 17, - 14, -1, 14, -1, 18, -1, -1, 10, -1 -}; - -/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ -static const unsigned short yyrline[] = -{ - 0, 188, 188, 190, 194, 196, 198, 200, 202, 204, - 206, 210, 217, 224, 232, 239, 251, 253, 258, 260, - 262, 267, 272, 277, 285, 290, 310, 317, 325, 330, - 336, 341, 350, 359, 363, 365, 367, 369, 371, 373, - 375, 377, 379, 381, 383, 385, 387, 389, 391, 393, - 395, 397, 402, 439, 440 -}; -#endif - -#if YYDEBUG || YYERROR_VERBOSE -/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. - First, the terminals, then, starting at YYNTOKENS, nonterminals. */ -static const char *const yytname[] = -{ - "$end", "error", "$undefined", "tAGO", "tDST", "tDAY", "tDAY_UNIT", - "tDAYZONE", "tHOUR_UNIT", "tLOCAL_ZONE", "tMERIDIAN", "tMINUTE_UNIT", - "tMONTH", "tMONTH_UNIT", "tSEC_UNIT", "tYEAR_UNIT", "tZONE", "tSNUMBER", - "tUNUMBER", "':'", "','", "'/'", "$accept", "spec", "item", "time", - "local_zone", "zone", "day", "date", "rel", "relunit", "number", - "o_merid", 0 -}; -#endif - -# ifdef YYPRINT -/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to - token YYLEX-NUM. */ -static const unsigned short yytoknum[] = -{ - 0, 256, 257, 258, 259, 260, 261, 262, 263, 264, - 265, 266, 267, 268, 269, 270, 271, 272, 273, 58, - 44, 47 -}; -# endif - -/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ -static const unsigned char yyr1[] = -{ - 0, 22, 23, 23, 24, 24, 24, 24, 24, 24, - 24, 25, 25, 25, 25, 25, 26, 26, 27, 27, - 27, 28, 28, 28, 29, 29, 29, 29, 29, 29, - 29, 29, 30, 30, 31, 31, 31, 31, 31, 31, - 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, - 31, 31, 32, 33, 33 -}; - -/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ -static const unsigned char yyr2[] = -{ - 0, 2, 0, 2, 1, 1, 1, 1, 1, 1, - 1, 2, 4, 4, 6, 6, 1, 2, 1, 1, - 2, 1, 2, 2, 3, 5, 3, 3, 2, 4, - 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, - 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, - 2, 1, 1, 0, 1 -}; - -/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state - STATE-NUM when YYTABLE doesn't specify something else to do. Zero - means the default is an error. */ -static const unsigned char yydefact[] = -{ - 2, 0, 1, 21, 42, 19, 45, 16, 48, 0, - 39, 51, 36, 18, 0, 52, 3, 4, 5, 6, - 8, 7, 9, 33, 10, 22, 17, 28, 20, 41, - 44, 47, 38, 50, 35, 23, 40, 43, 11, 46, - 30, 37, 49, 34, 0, 0, 0, 32, 0, 27, - 31, 26, 53, 24, 29, 54, 13, 0, 12, 0, - 53, 25, 15, 14 -}; - -/* YYDEFGOTO[NTERM-NUM]. */ -static const yysigned_char yydefgoto[] = -{ - -1, 1, 16, 17, 18, 19, 20, 21, 22, 23, - 24, 58 -}; - -/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing - STATE-NUM. */ -#define YYPACT_NINF -17 -static const yysigned_char yypact[] = -{ - -17, 0, -17, 1, -17, -17, -17, 19, -17, -14, - -17, -17, -17, 32, 26, 14, -17, -17, -17, -17, - -17, -17, -17, 27, -17, -17, -17, 22, -17, -17, - -17, -17, -17, -17, -17, -17, -17, -17, -17, -17, - -16, -17, -17, -17, 29, 25, 30, -17, 31, -17, - -17, -17, 28, 23, -17, -17, -17, 33, -17, 34, - -7, -17, -17, -17 -}; - -/* YYPGOTO[NTERM-NUM]. */ -static const yysigned_char yypgoto[] = -{ - -17, -17, -17, -17, -17, -17, -17, -17, -17, -17, - -17, -10 -}; - -/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If - positive, shift that token. If negative, reduce the rule which - number is the opposite. If zero, do what YYDEFACT says. - If YYTABLE_NINF, syntax error. */ -#define YYTABLE_NINF -1 -static const unsigned char yytable[] = -{ - 2, 49, 50, 55, 27, 3, 4, 5, 6, 7, - 62, 8, 9, 10, 11, 12, 13, 14, 15, 35, - 36, 25, 37, 26, 38, 39, 40, 41, 42, 43, - 47, 44, 29, 45, 30, 46, 28, 31, 55, 32, - 33, 34, 48, 52, 59, 56, 51, 57, 53, 54, - 63, 60, 61 -}; - -static const unsigned char yycheck[] = -{ - 0, 17, 18, 10, 18, 5, 6, 7, 8, 9, - 17, 11, 12, 13, 14, 15, 16, 17, 18, 5, - 6, 20, 8, 4, 10, 11, 12, 13, 14, 15, - 3, 17, 6, 19, 8, 21, 4, 11, 10, 13, - 14, 15, 20, 18, 21, 17, 17, 19, 18, 18, - 60, 18, 18 -}; - -/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing - symbol of state STATE-NUM. */ -static const unsigned char yystos[] = -{ - 0, 23, 0, 5, 6, 7, 8, 9, 11, 12, - 13, 14, 15, 16, 17, 18, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 20, 4, 18, 4, 6, - 8, 11, 13, 14, 15, 5, 6, 8, 10, 11, - 12, 13, 14, 15, 17, 19, 21, 3, 20, 17, - 18, 17, 18, 18, 18, 10, 17, 19, 33, 21, - 18, 18, 17, 33 -}; - -#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) -# define YYSIZE_T __SIZE_TYPE__ -#endif -#if ! defined (YYSIZE_T) && defined (size_t) -# define YYSIZE_T size_t -#endif -#if ! defined (YYSIZE_T) -# if defined (__STDC__) || defined (__cplusplus) -# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -#endif -#if ! defined (YYSIZE_T) -# define YYSIZE_T unsigned int -#endif - -#define yyerrok (yyerrstatus = 0) -#define yyclearin (yychar = YYEMPTY) -#define YYEMPTY (-2) -#define YYEOF 0 - -#define YYACCEPT goto yyacceptlab -#define YYABORT goto yyabortlab -#define YYERROR goto yyerrlab1 - - -/* Like YYERROR except do call yyerror. This remains here temporarily - to ease the transition to the new meaning of YYERROR, for GCC. - Once GCC version 2 has supplanted version 1, this can go. */ - -#define YYFAIL goto yyerrlab - -#define YYRECOVERING() (!!yyerrstatus) - -#define YYBACKUP(Token, Value) \ -do \ - if (yychar == YYEMPTY && yylen == 1) \ - { \ - yychar = (Token); \ - yylval = (Value); \ - yytoken = YYTRANSLATE (yychar); \ - YYPOPSTACK; \ - goto yybackup; \ - } \ - else \ - { \ - yyerror ("syntax error: cannot back up");\ - YYERROR; \ - } \ -while (0) - -#define YYTERROR 1 -#define YYERRCODE 256 - -/* YYLLOC_DEFAULT -- Compute the default location (before the actions - are run). */ - -#ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ - Current.first_line = Rhs[1].first_line; \ - Current.first_column = Rhs[1].first_column; \ - Current.last_line = Rhs[N].last_line; \ - Current.last_column = Rhs[N].last_column; -#endif - -/* YYLEX -- calling `yylex' with the right arguments. */ - -#ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval, YYLEX_PARAM) -#else -# define YYLEX yylex (&yylval) -#endif - -/* Enable debugging if requested. */ -#if YYDEBUG - -# ifndef YYFPRINTF -# include <stdio.h> /* INFRINGES ON USER NAME SPACE */ -# define YYFPRINTF fprintf -# endif - -# define YYDPRINTF(Args) \ -do { \ - if (yydebug) \ - YYFPRINTF Args; \ -} while (0) - -# define YYDSYMPRINT(Args) \ -do { \ - if (yydebug) \ - yysymprint Args; \ -} while (0) - -# define YYDSYMPRINTF(Title, Token, Value, Location) \ -do { \ - if (yydebug) \ - { \ - YYFPRINTF (stderr, "%s ", Title); \ - yysymprint (stderr, \ - Token, Value); \ - YYFPRINTF (stderr, "\n"); \ - } \ -} while (0) - -/*------------------------------------------------------------------. -| yy_stack_print -- Print the state stack from its BOTTOM up to its | -| TOP (cinluded). | -`------------------------------------------------------------------*/ - -#if defined (__STDC__) || defined (__cplusplus) -static void -yy_stack_print (short *bottom, short *top) -#else -static void -yy_stack_print (bottom, top) - short *bottom; - short *top; -#endif -{ - YYFPRINTF (stderr, "Stack now"); - for (/* Nothing. */; bottom <= top; ++bottom) - YYFPRINTF (stderr, " %d", *bottom); - YYFPRINTF (stderr, "\n"); -} - -# define YY_STACK_PRINT(Bottom, Top) \ -do { \ - if (yydebug) \ - yy_stack_print ((Bottom), (Top)); \ -} while (0) - - -/*------------------------------------------------. -| Report that the YYRULE is going to be reduced. | -`------------------------------------------------*/ - -#if defined (__STDC__) || defined (__cplusplus) -static void -yy_reduce_print (int yyrule) -#else -static void -yy_reduce_print (yyrule) - int yyrule; -#endif -{ - int yyi; - unsigned int yylineno = yyrline[yyrule]; - YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ", - yyrule - 1, yylineno); - /* Print the symbols being reduced, and their result. */ - for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) - YYFPRINTF (stderr, "%s ", yytname [yyrhs[yyi]]); - YYFPRINTF (stderr, "-> %s\n", yytname [yyr1[yyrule]]); -} - -# define YY_REDUCE_PRINT(Rule) \ -do { \ - if (yydebug) \ - yy_reduce_print (Rule); \ -} while (0) - -/* Nonzero means print parse trace. It is left uninitialized so that - multiple parsers can coexist. */ -int yydebug; -#else /* !YYDEBUG */ -# define YYDPRINTF(Args) -# define YYDSYMPRINT(Args) -# define YYDSYMPRINTF(Title, Token, Value, Location) -# define YY_STACK_PRINT(Bottom, Top) -# define YY_REDUCE_PRINT(Rule) -#endif /* !YYDEBUG */ - - -/* YYINITDEPTH -- initial size of the parser's stacks. */ -#ifndef YYINITDEPTH -# define YYINITDEPTH 200 -#endif - -/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only - if the built-in stack extension method is used). - - Do not make this value too large; the results are undefined if - SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH) - evaluated with infinite-precision integer arithmetic. */ - -#if YYMAXDEPTH == 0 -# undef YYMAXDEPTH -#endif - -#ifndef YYMAXDEPTH -# define YYMAXDEPTH 10000 -#endif - - - -#if YYERROR_VERBOSE - -# ifndef yystrlen -# if defined (__GLIBC__) && defined (_STRING_H) -# define yystrlen strlen -# else -/* Return the length of YYSTR. */ -static YYSIZE_T -# if defined (__STDC__) || defined (__cplusplus) -yystrlen (const char *yystr) -# else -yystrlen (yystr) - const char *yystr; -# endif -{ - register const char *yys = yystr; - - while (*yys++ != '\0') - continue; - - return yys - yystr - 1; -} -# endif -# endif - -# ifndef yystpcpy -# if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE) -# define yystpcpy stpcpy -# else -/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in - YYDEST. */ -static char * -# if defined (__STDC__) || defined (__cplusplus) -yystpcpy (char *yydest, const char *yysrc) -# else -yystpcpy (yydest, yysrc) - char *yydest; - const char *yysrc; -# endif -{ - register char *yyd = yydest; - register const char *yys = yysrc; - - while ((*yyd++ = *yys++) != '\0') - continue; - - return yyd - 1; -} -# endif -# endif - -#endif /* !YYERROR_VERBOSE */ - - - -#if YYDEBUG -/*--------------------------------. -| Print this symbol on YYOUTPUT. | -`--------------------------------*/ - -#if defined (__STDC__) || defined (__cplusplus) -static void -yysymprint (FILE *yyoutput, int yytype, YYSTYPE *yyvaluep) -#else -static void -yysymprint (yyoutput, yytype, yyvaluep) - FILE *yyoutput; - int yytype; - YYSTYPE *yyvaluep; -#endif -{ - /* Pacify ``unused variable'' warnings. */ - (void) yyvaluep; - - if (yytype < YYNTOKENS) - { - YYFPRINTF (yyoutput, "token %s (", yytname[yytype]); -# ifdef YYPRINT - YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); -# endif - } - else - YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]); - - switch (yytype) - { - default: - break; - } - YYFPRINTF (yyoutput, ")"); -} - -#endif /* ! YYDEBUG */ -/*-----------------------------------------------. -| Release the memory associated to this symbol. | -`-----------------------------------------------*/ - -#if defined (__STDC__) || defined (__cplusplus) -static void -yydestruct (int yytype, YYSTYPE *yyvaluep) -#else -static void -yydestruct (yytype, yyvaluep) - int yytype; - YYSTYPE *yyvaluep; -#endif -{ - /* Pacify ``unused variable'' warnings. */ - (void) yyvaluep; - - switch (yytype) - { - - default: - break; - } -} - - -/* Prevent warnings from -Wmissing-prototypes. */ - -#ifdef YYPARSE_PARAM -# if defined (__STDC__) || defined (__cplusplus) -int yyparse (void *YYPARSE_PARAM); -# else -int yyparse (); -# endif -#else /* ! YYPARSE_PARAM */ -#if defined (__STDC__) || defined (__cplusplus) -int yyparse (void); -#else -int yyparse (); -#endif -#endif /* ! YYPARSE_PARAM */ - - - - - - -/*----------. -| yyparse. | -`----------*/ - -#ifdef YYPARSE_PARAM -# if defined (__STDC__) || defined (__cplusplus) -int yyparse (void *YYPARSE_PARAM) -# else -int yyparse (YYPARSE_PARAM) - void *YYPARSE_PARAM; -# endif -#else /* ! YYPARSE_PARAM */ -#if defined (__STDC__) || defined (__cplusplus) -int -yyparse (void) -#else -int -yyparse () - -#endif -#endif -{ - /* The lookahead symbol. */ -int yychar; - -/* The semantic value of the lookahead symbol. */ -YYSTYPE yylval; - -/* Number of syntax errors so far. */ -int yynerrs; - - register int yystate; - register int yyn; - int yyresult; - /* Number of tokens to shift before error messages enabled. */ - int yyerrstatus; - /* Lookahead token as an internal (translated) token number. */ - int yytoken = 0; - - /* Three stacks and their tools: - `yyss': related to states, - `yyvs': related to semantic values, - `yyls': related to locations. - - Refer to the stacks thru separate pointers, to allow yyoverflow - to reallocate them elsewhere. */ - - /* The state stack. */ - short yyssa[YYINITDEPTH]; - short *yyss = yyssa; - register short *yyssp; - - /* The semantic value stack. */ - YYSTYPE yyvsa[YYINITDEPTH]; - YYSTYPE *yyvs = yyvsa; - register YYSTYPE *yyvsp; - - - -#define YYPOPSTACK (yyvsp--, yyssp--) - - YYSIZE_T yystacksize = YYINITDEPTH; - - /* The variables used to return semantic value and location from the - action routines. */ - YYSTYPE yyval; - - - /* When reducing, the number of symbols on the RHS of the reduced - rule. */ - int yylen; - - YYDPRINTF ((stderr, "Starting parse\n")); - - yystate = 0; - yyerrstatus = 0; - yynerrs = 0; - yychar = YYEMPTY; /* Cause a token to be read. */ - - /* Initialize stack pointers. - Waste one element of value and location stack - so that they stay on the same level as the state stack. - The wasted elements are never initialized. */ - - yyssp = yyss; - yyvsp = yyvs; - - goto yysetstate; - -/*------------------------------------------------------------. -| yynewstate -- Push a new state, which is found in yystate. | -`------------------------------------------------------------*/ - yynewstate: - /* In all cases, when you get here, the value and location stacks - have just been pushed. so pushing a state here evens the stacks. - */ - yyssp++; - - yysetstate: - *yyssp = yystate; - - if (yyss + yystacksize - 1 <= yyssp) - { - /* Get the current used size of the three stacks, in elements. */ - YYSIZE_T yysize = yyssp - yyss + 1; - -#ifdef yyoverflow - { - /* Give user a chance to reallocate the stack. Use copies of - these so that the &'s don't force the real ones into - memory. */ - YYSTYPE *yyvs1 = yyvs; - short *yyss1 = yyss; - - - /* Each stack pointer address is followed by the size of the - data in use in that stack, in bytes. This used to be a - conditional around just the two extra args, but that might - be undefined if yyoverflow is a macro. */ - yyoverflow ("parser stack overflow", - &yyss1, yysize * sizeof (*yyssp), - &yyvs1, yysize * sizeof (*yyvsp), - - &yystacksize); - - yyss = yyss1; - yyvs = yyvs1; - } -#else /* no yyoverflow */ -# ifndef YYSTACK_RELOCATE - goto yyoverflowlab; -# else - /* Extend the stack our own way. */ - if (YYMAXDEPTH <= yystacksize) - goto yyoverflowlab; - yystacksize *= 2; - if (YYMAXDEPTH < yystacksize) - yystacksize = YYMAXDEPTH; - - { - short *yyss1 = yyss; - union yyalloc *yyptr = - (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); - if (! yyptr) - goto yyoverflowlab; - YYSTACK_RELOCATE (yyss); - YYSTACK_RELOCATE (yyvs); - -# undef YYSTACK_RELOCATE - if (yyss1 != yyssa) - YYSTACK_FREE (yyss1); - } -# endif -#endif /* no yyoverflow */ - - yyssp = yyss + yysize - 1; - yyvsp = yyvs + yysize - 1; - - - YYDPRINTF ((stderr, "Stack size increased to %lu\n", - (unsigned long int) yystacksize)); - - if (yyss + yystacksize - 1 <= yyssp) - YYABORT; - } - - YYDPRINTF ((stderr, "Entering state %d\n", yystate)); - - goto yybackup; - -/*-----------. -| yybackup. | -`-----------*/ -yybackup: - -/* Do appropriate processing given the current state. */ -/* Read a lookahead token if we need one and don't already have one. */ -/* yyresume: */ - - /* First try to decide what to do without reference to lookahead token. */ - - yyn = yypact[yystate]; - if (yyn == YYPACT_NINF) - goto yydefault; - - /* Not known => get a lookahead token if don't already have one. */ - - /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ - if (yychar == YYEMPTY) - { - YYDPRINTF ((stderr, "Reading a token: ")); - yychar = YYLEX; - } - - if (yychar <= YYEOF) - { - yychar = yytoken = YYEOF; - YYDPRINTF ((stderr, "Now at end of input.\n")); - } - else - { - yytoken = YYTRANSLATE (yychar); - YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc); - } - - /* If the proper action on seeing token YYTOKEN is to reduce or to - detect an error, take that action. */ - yyn += yytoken; - if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) - goto yydefault; - yyn = yytable[yyn]; - if (yyn <= 0) - { - if (yyn == 0 || yyn == YYTABLE_NINF) - goto yyerrlab; - yyn = -yyn; - goto yyreduce; - } - - if (yyn == YYFINAL) - YYACCEPT; - - /* Shift the lookahead token. */ - YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken])); - - /* Discard the token being shifted unless it is eof. */ - if (yychar != YYEOF) - yychar = YYEMPTY; - - *++yyvsp = yylval; - - - /* Count tokens shifted since error; after three, turn off error - status. */ - if (yyerrstatus) - yyerrstatus--; - - yystate = yyn; - goto yynewstate; - - -/*-----------------------------------------------------------. -| yydefault -- do the default action for the current state. | -`-----------------------------------------------------------*/ -yydefault: - yyn = yydefact[yystate]; - if (yyn == 0) - goto yyerrlab; - goto yyreduce; - - -/*-----------------------------. -| yyreduce -- Do a reduction. | -`-----------------------------*/ -yyreduce: - /* yyn is the number of a rule to reduce with. */ - yylen = yyr2[yyn]; - - /* If YYLEN is nonzero, implement the default value of the action: - `$$ = $1'. - - Otherwise, the following line sets YYVAL to garbage. - This behavior is undocumented and Bison - users should not rely upon it. Assigning to YYVAL - unconditionally makes the parser a bit smaller, and it avoids a - GCC warning that YYVAL may be used uninitialized. */ - yyval = yyvsp[1-yylen]; - - - YY_REDUCE_PRINT (yyn); - switch (yyn) - { - case 4: -#line 195 "getdate.y" - { PC.times_seen++; } - break; - - case 5: -#line 197 "getdate.y" - { PC.local_zones_seen++; } - break; - - case 6: -#line 199 "getdate.y" - { PC.zones_seen++; } - break; - - case 7: -#line 201 "getdate.y" - { PC.dates_seen++; } - break; - - case 8: -#line 203 "getdate.y" - { PC.days_seen++; } - break; - - case 9: -#line 205 "getdate.y" - { PC.rels_seen++; } - break; - - case 11: -#line 211 "getdate.y" - { - PC.hour = yyvsp[-1].textintval.value; - PC.minutes = 0; - PC.seconds = 0; - PC.meridian = yyvsp[0].intval; - } - break; - - case 12: -#line 218 "getdate.y" - { - PC.hour = yyvsp[-3].textintval.value; - PC.minutes = yyvsp[-1].textintval.value; - PC.seconds = 0; - PC.meridian = yyvsp[0].intval; - } - break; - - case 13: -#line 225 "getdate.y" - { - PC.hour = yyvsp[-3].textintval.value; - PC.minutes = yyvsp[-1].textintval.value; - PC.meridian = MER24; - PC.zones_seen++; - PC.time_zone = yyvsp[0].textintval.value % 100 + (yyvsp[0].textintval.value / 100) * 60; - } - break; - - case 14: -#line 233 "getdate.y" - { - PC.hour = yyvsp[-5].textintval.value; - PC.minutes = yyvsp[-3].textintval.value; - PC.seconds = yyvsp[-1].textintval.value; - PC.meridian = yyvsp[0].intval; - } - break; - - case 15: -#line 240 "getdate.y" - { - PC.hour = yyvsp[-5].textintval.value; - PC.minutes = yyvsp[-3].textintval.value; - PC.seconds = yyvsp[-1].textintval.value; - PC.meridian = MER24; - PC.zones_seen++; - PC.time_zone = yyvsp[0].textintval.value % 100 + (yyvsp[0].textintval.value / 100) * 60; - } - break; - - case 16: -#line 252 "getdate.y" - { PC.local_isdst = yyvsp[0].intval; } - break; - - case 17: -#line 254 "getdate.y" - { PC.local_isdst = yyvsp[-1].intval < 0 ? 1 : yyvsp[-1].intval + 1; } - break; - - case 18: -#line 259 "getdate.y" - { PC.time_zone = yyvsp[0].intval; } - break; - - case 19: -#line 261 "getdate.y" - { PC.time_zone = yyvsp[0].intval + 60; } - break; - - case 20: -#line 263 "getdate.y" - { PC.time_zone = yyvsp[-1].intval + 60; } - break; - - case 21: -#line 268 "getdate.y" - { - PC.day_ordinal = 1; - PC.day_number = yyvsp[0].intval; - } - break; - - case 22: -#line 273 "getdate.y" - { - PC.day_ordinal = 1; - PC.day_number = yyvsp[-1].intval; - } - break; - - case 23: -#line 278 "getdate.y" - { - PC.day_ordinal = yyvsp[-1].textintval.value; - PC.day_number = yyvsp[0].intval; - } - break; - - case 24: -#line 286 "getdate.y" - { - PC.month = yyvsp[-2].textintval.value; - PC.day = yyvsp[0].textintval.value; - } - break; - - case 25: -#line 291 "getdate.y" - { - /* Interpret as YYYY/MM/DD if the first value has 4 or more digits, - otherwise as MM/DD/YY. - The goal in recognizing YYYY/MM/DD is solely to support legacy - machine-generated dates like those in an RCS log listing. If - you want portability, use the ISO 8601 format. */ - if (4 <= yyvsp[-4].textintval.digits) - { - PC.year = yyvsp[-4].textintval; - PC.month = yyvsp[-2].textintval.value; - PC.day = yyvsp[0].textintval.value; - } - else - { - PC.month = yyvsp[-4].textintval.value; - PC.day = yyvsp[-2].textintval.value; - PC.year = yyvsp[0].textintval; - } - } - break; - - case 26: -#line 311 "getdate.y" - { - /* ISO 8601 format. YYYY-MM-DD. */ - PC.year = yyvsp[-2].textintval; - PC.month = -yyvsp[-1].textintval.value; - PC.day = -yyvsp[0].textintval.value; - } - break; - - case 27: -#line 318 "getdate.y" - { - /* e.g. 17-JUN-1992. */ - PC.day = yyvsp[-2].textintval.value; - PC.month = yyvsp[-1].intval; - PC.year.value = -yyvsp[0].textintval.value; - PC.year.digits = yyvsp[0].textintval.digits; - } - break; - - case 28: -#line 326 "getdate.y" - { - PC.month = yyvsp[-1].intval; - PC.day = yyvsp[0].textintval.value; - } - break; - - case 29: -#line 331 "getdate.y" - { - PC.month = yyvsp[-3].intval; - PC.day = yyvsp[-2].textintval.value; - PC.year = yyvsp[0].textintval; - } - break; - - case 30: -#line 337 "getdate.y" - { - PC.day = yyvsp[-1].textintval.value; - PC.month = yyvsp[0].intval; - } - break; - - case 31: -#line 342 "getdate.y" - { - PC.day = yyvsp[-2].textintval.value; - PC.month = yyvsp[-1].intval; - PC.year = yyvsp[0].textintval; - } - break; - - case 32: -#line 351 "getdate.y" - { - PC.rel_seconds = -PC.rel_seconds; - PC.rel_minutes = -PC.rel_minutes; - PC.rel_hour = -PC.rel_hour; - PC.rel_day = -PC.rel_day; - PC.rel_month = -PC.rel_month; - PC.rel_year = -PC.rel_year; - } - break; - - case 34: -#line 364 "getdate.y" - { PC.rel_year += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 35: -#line 366 "getdate.y" - { PC.rel_year += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 36: -#line 368 "getdate.y" - { PC.rel_year += yyvsp[0].intval; } - break; - - case 37: -#line 370 "getdate.y" - { PC.rel_month += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 38: -#line 372 "getdate.y" - { PC.rel_month += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 39: -#line 374 "getdate.y" - { PC.rel_month += yyvsp[0].intval; } - break; - - case 40: -#line 376 "getdate.y" - { PC.rel_day += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 41: -#line 378 "getdate.y" - { PC.rel_day += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 42: -#line 380 "getdate.y" - { PC.rel_day += yyvsp[0].intval; } - break; - - case 43: -#line 382 "getdate.y" - { PC.rel_hour += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 44: -#line 384 "getdate.y" - { PC.rel_hour += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 45: -#line 386 "getdate.y" - { PC.rel_hour += yyvsp[0].intval; } - break; - - case 46: -#line 388 "getdate.y" - { PC.rel_minutes += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 47: -#line 390 "getdate.y" - { PC.rel_minutes += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 48: -#line 392 "getdate.y" - { PC.rel_minutes += yyvsp[0].intval; } - break; - - case 49: -#line 394 "getdate.y" - { PC.rel_seconds += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 50: -#line 396 "getdate.y" - { PC.rel_seconds += yyvsp[-1].textintval.value * yyvsp[0].intval; } - break; - - case 51: -#line 398 "getdate.y" - { PC.rel_seconds += yyvsp[0].intval; } - break; - - case 52: -#line 403 "getdate.y" - { - if (PC.dates_seen - && ! PC.rels_seen && (PC.times_seen || 2 < yyvsp[0].textintval.digits)) - PC.year = yyvsp[0].textintval; - else - { - if (4 < yyvsp[0].textintval.digits) - { - PC.dates_seen++; - PC.day = yyvsp[0].textintval.value % 100; - PC.month = (yyvsp[0].textintval.value / 100) % 100; - PC.year.value = yyvsp[0].textintval.value / 10000; - PC.year.digits = yyvsp[0].textintval.digits - 4; - } - else - { - PC.times_seen++; - if (yyvsp[0].textintval.digits <= 2) - { - PC.hour = yyvsp[0].textintval.value; - PC.minutes = 0; - } - else - { - PC.hour = yyvsp[0].textintval.value / 100; - PC.minutes = yyvsp[0].textintval.value % 100; - } - PC.seconds = 0; - PC.meridian = MER24; - } - } - } - break; - - case 53: -#line 439 "getdate.y" - { yyval.intval = MER24; } - break; - - case 54: -#line 441 "getdate.y" - { yyval.intval = yyvsp[0].intval; } - break; - - - } - -/* Line 999 of yacc.c. */ -#line 1593 "getdate.c" - - yyvsp -= yylen; - yyssp -= yylen; - - - YY_STACK_PRINT (yyss, yyssp); - - *++yyvsp = yyval; - - - /* Now `shift' the result of the reduction. Determine what state - that goes to, based on the state we popped back to and the rule - number reduced by. */ - - yyn = yyr1[yyn]; - - yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; - if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) - yystate = yytable[yystate]; - else - yystate = yydefgoto[yyn - YYNTOKENS]; - - goto yynewstate; - - -/*------------------------------------. -| yyerrlab -- here on detecting error | -`------------------------------------*/ -yyerrlab: - /* If not already recovering from an error, report this error. */ - if (!yyerrstatus) - { - ++yynerrs; -#if YYERROR_VERBOSE - yyn = yypact[yystate]; - - if (YYPACT_NINF < yyn && yyn < YYLAST) - { - YYSIZE_T yysize = 0; - int yytype = YYTRANSLATE (yychar); - char *yymsg; - int yyx, yycount; - - yycount = 0; - /* Start YYX at -YYN if negative to avoid negative indexes in - YYCHECK. */ - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) - if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) - yysize += yystrlen (yytname[yyx]) + 15, yycount++; - yysize += yystrlen ("syntax error, unexpected ") + 1; - yysize += yystrlen (yytname[yytype]); - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg != 0) - { - char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); - yyp = yystpcpy (yyp, yytname[yytype]); - - if (yycount < 5) - { - yycount = 0; - for (yyx = yyn < 0 ? -yyn : 0; - yyx < (int) (sizeof (yytname) / sizeof (char *)); - yyx++) - if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) - { - const char *yyq = ! yycount ? ", expecting " : " or "; - yyp = yystpcpy (yyp, yyq); - yyp = yystpcpy (yyp, yytname[yyx]); - yycount++; - } - } - yyerror (yymsg); - YYSTACK_FREE (yymsg); - } - else - yyerror ("syntax error; also virtual memory exhausted"); - } - else -#endif /* YYERROR_VERBOSE */ - yyerror ("syntax error"); - } - - - - if (yyerrstatus == 3) - { - /* If just tried and failed to reuse lookahead token after an - error, discard it. */ - - /* Return failure if at end of input. */ - if (yychar == YYEOF) - { - /* Pop the error token. */ - YYPOPSTACK; - /* Pop the rest of the stack. */ - while (yyss < yyssp) - { - YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); - yydestruct (yystos[*yyssp], yyvsp); - YYPOPSTACK; - } - YYABORT; - } - - YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc); - yydestruct (yytoken, &yylval); - yychar = YYEMPTY; - - } - - /* Else will try to reuse lookahead token after shifting the error - token. */ - goto yyerrlab1; - - -/*----------------------------------------------------. -| yyerrlab1 -- error raised explicitly by an action. | -`----------------------------------------------------*/ -yyerrlab1: - yyerrstatus = 3; /* Each real token shifted decrements this. */ - - for (;;) - { - yyn = yypact[yystate]; - if (yyn != YYPACT_NINF) - { - yyn += YYTERROR; - if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) - { - yyn = yytable[yyn]; - if (0 < yyn) - break; - } - } - - /* Pop the current state because it cannot handle the error token. */ - if (yyssp == yyss) - YYABORT; - - YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp); - yydestruct (yystos[yystate], yyvsp); - yyvsp--; - yystate = *--yyssp; - - YY_STACK_PRINT (yyss, yyssp); - } - - if (yyn == YYFINAL) - YYACCEPT; - - YYDPRINTF ((stderr, "Shifting error token, ")); - - *++yyvsp = yylval; - - - yystate = yyn; - goto yynewstate; - - -/*-------------------------------------. -| yyacceptlab -- YYACCEPT comes here. | -`-------------------------------------*/ -yyacceptlab: - yyresult = 0; - goto yyreturn; - -/*-----------------------------------. -| yyabortlab -- YYABORT comes here. | -`-----------------------------------*/ -yyabortlab: - yyresult = 1; - goto yyreturn; - -#ifndef yyoverflow -/*----------------------------------------------. -| yyoverflowlab -- parser overflow comes here. | -`----------------------------------------------*/ -yyoverflowlab: - yyerror ("parser stack overflow"); - yyresult = 2; - /* Fall through. */ -#endif - -yyreturn: -#ifndef yyoverflow - if (yyss != yyssa) - YYSTACK_FREE (yyss); -#endif - return yyresult; -} - - -#line 444 "getdate.y" - - -/* Include this file down here because bison inserts code above which - may define-away `const'. We want the prototype for get_date to have - the same signature as the function definition. */ -#include "modules/getdate.h" - -#ifndef gmtime -struct tm *gmtime (); -#endif -#ifndef localtime -struct tm *localtime (); -#endif -#ifndef mktime -time_t mktime (); -#endif - -static table const meridian_table[] = -{ - { "AM", tMERIDIAN, MERam }, - { "A.M.", tMERIDIAN, MERam }, - { "PM", tMERIDIAN, MERpm }, - { "P.M.", tMERIDIAN, MERpm }, - { 0, 0, 0 } -}; - -static table const dst_table[] = -{ - { "DST", tDST, 0 } -}; - -static table const month_and_day_table[] = -{ - { "JANUARY", tMONTH, 1 }, - { "FEBRUARY", tMONTH, 2 }, - { "MARCH", tMONTH, 3 }, - { "APRIL", tMONTH, 4 }, - { "MAY", tMONTH, 5 }, - { "JUNE", tMONTH, 6 }, - { "JULY", tMONTH, 7 }, - { "AUGUST", tMONTH, 8 }, - { "SEPTEMBER",tMONTH, 9 }, - { "SEPT", tMONTH, 9 }, - { "OCTOBER", tMONTH, 10 }, - { "NOVEMBER", tMONTH, 11 }, - { "DECEMBER", tMONTH, 12 }, - { "SUNDAY", tDAY, 0 }, - { "MONDAY", tDAY, 1 }, - { "TUESDAY", tDAY, 2 }, - { "TUES", tDAY, 2 }, - { "WEDNESDAY",tDAY, 3 }, - { "WEDNES", tDAY, 3 }, - { "THURSDAY", tDAY, 4 }, - { "THUR", tDAY, 4 }, - { "THURS", tDAY, 4 }, - { "FRIDAY", tDAY, 5 }, - { "SATURDAY", tDAY, 6 }, - { 0, 0, 0 } -}; - -static table const time_units_table[] = -{ - { "YEAR", tYEAR_UNIT, 1 }, - { "MONTH", tMONTH_UNIT, 1 }, - { "FORTNIGHT",tDAY_UNIT, 14 }, - { "WEEK", tDAY_UNIT, 7 }, - { "DAY", tDAY_UNIT, 1 }, - { "HOUR", tHOUR_UNIT, 1 }, - { "MINUTE", tMINUTE_UNIT, 1 }, - { "MIN", tMINUTE_UNIT, 1 }, - { "SECOND", tSEC_UNIT, 1 }, - { "SEC", tSEC_UNIT, 1 }, - { 0, 0, 0 } -}; - -/* Assorted relative-time words. */ -static table const relative_time_table[] = -{ - { "TOMORROW", tMINUTE_UNIT, 24 * 60 }, - { "YESTERDAY",tMINUTE_UNIT, - (24 * 60) }, - { "TODAY", tMINUTE_UNIT, 0 }, - { "NOW", tMINUTE_UNIT, 0 }, - { "LAST", tUNUMBER, -1 }, - { "THIS", tUNUMBER, 0 }, - { "NEXT", tUNUMBER, 1 }, - { "FIRST", tUNUMBER, 1 }, -/*{ "SECOND", tUNUMBER, 2 }, */ - { "THIRD", tUNUMBER, 3 }, - { "FOURTH", tUNUMBER, 4 }, - { "FIFTH", tUNUMBER, 5 }, - { "SIXTH", tUNUMBER, 6 }, - { "SEVENTH", tUNUMBER, 7 }, - { "EIGHTH", tUNUMBER, 8 }, - { "NINTH", tUNUMBER, 9 }, - { "TENTH", tUNUMBER, 10 }, - { "ELEVENTH", tUNUMBER, 11 }, - { "TWELFTH", tUNUMBER, 12 }, - { "AGO", tAGO, 1 }, - { 0, 0, 0 } -}; - -/* The time zone table. This table is necessarily incomplete, as time - zone abbreviations are ambiguous; e.g. Australians interpret "EST" - as Eastern time in Australia, not as US Eastern Standard Time. - You cannot rely on getdate to handle arbitrary time zone - abbreviations; use numeric abbreviations like `-0500' instead. */ -static table const time_zone_table[] = -{ - { "GMT", tZONE, HOUR ( 0) }, /* Greenwich Mean */ - { "UT", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */ - { "UTC", tZONE, HOUR ( 0) }, - { "WET", tZONE, HOUR ( 0) }, /* Western European */ - { "WEST", tDAYZONE, HOUR ( 0) }, /* Western European Summer */ - { "BST", tDAYZONE, HOUR ( 0) }, /* British Summer */ - { "ART", tZONE, -HOUR ( 3) }, /* Argentina */ - { "BRT", tZONE, -HOUR ( 3) }, /* Brazil */ - { "BRST", tDAYZONE, -HOUR ( 3) }, /* Brazil Summer */ - { "NST", tZONE, -(HOUR ( 3) + 30) }, /* Newfoundland Standard */ - { "NDT", tDAYZONE,-(HOUR ( 3) + 30) }, /* Newfoundland Daylight */ - { "AST", tZONE, -HOUR ( 4) }, /* Atlantic Standard */ - { "ADT", tDAYZONE, -HOUR ( 4) }, /* Atlantic Daylight */ - { "CLT", tZONE, -HOUR ( 4) }, /* Chile */ - { "CLST", tDAYZONE, -HOUR ( 4) }, /* Chile Summer */ - { "EST", tZONE, -HOUR ( 5) }, /* Eastern Standard */ - { "EDT", tDAYZONE, -HOUR ( 5) }, /* Eastern Daylight */ - { "CST", tZONE, -HOUR ( 6) }, /* Central Standard */ - { "CDT", tDAYZONE, -HOUR ( 6) }, /* Central Daylight */ - { "MST", tZONE, -HOUR ( 7) }, /* Mountain Standard */ - { "MDT", tDAYZONE, -HOUR ( 7) }, /* Mountain Daylight */ - { "PST", tZONE, -HOUR ( 8) }, /* Pacific Standard */ - { "PDT", tDAYZONE, -HOUR ( 8) }, /* Pacific Daylight */ - { "AKST", tZONE, -HOUR ( 9) }, /* Alaska Standard */ - { "AKDT", tDAYZONE, -HOUR ( 9) }, /* Alaska Daylight */ - { "HST", tZONE, -HOUR (10) }, /* Hawaii Standard */ - { "HAST", tZONE, -HOUR (10) }, /* Hawaii-Aleutian Standard */ - { "HADT", tDAYZONE, -HOUR (10) }, /* Hawaii-Aleutian Daylight */ - { "SST", tZONE, -HOUR (12) }, /* Samoa Standard */ - { "WAT", tZONE, HOUR ( 1) }, /* West Africa */ - { "CET", tZONE, HOUR ( 1) }, /* Central European */ - { "CEST", tDAYZONE, HOUR ( 1) }, /* Central European Summer */ - { "MET", tZONE, HOUR ( 1) }, /* Middle European */ - { "MEZ", tZONE, HOUR ( 1) }, /* Middle European */ - { "MEST", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */ - { "MESZ", tDAYZONE, HOUR ( 1) }, /* Middle European Summer */ - { "EET", tZONE, HOUR ( 2) }, /* Eastern European */ - { "EEST", tDAYZONE, HOUR ( 2) }, /* Eastern European Summer */ - { "CAT", tZONE, HOUR ( 2) }, /* Central Africa */ - { "SAST", tZONE, HOUR ( 2) }, /* South Africa Standard */ - { "EAT", tZONE, HOUR ( 3) }, /* East Africa */ - { "MSK", tZONE, HOUR ( 3) }, /* Moscow */ - { "MSD", tDAYZONE, HOUR ( 3) }, /* Moscow Daylight */ - { "IST", tZONE, (HOUR ( 5) + 30) }, /* India Standard */ - { "SGT", tZONE, HOUR ( 8) }, /* Singapore */ - { "KST", tZONE, HOUR ( 9) }, /* Korea Standard */ - { "JST", tZONE, HOUR ( 9) }, /* Japan Standard */ - { "GST", tZONE, HOUR (10) }, /* Guam Standard */ - { "NZST", tZONE, HOUR (12) }, /* New Zealand Standard */ - { "NZDT", tDAYZONE, HOUR (12) }, /* New Zealand Daylight */ - { 0, 0, 0 } -}; - -/* Military time zone table. */ -static table const military_table[] = -{ - { "A", tZONE, -HOUR ( 1) }, - { "B", tZONE, -HOUR ( 2) }, - { "C", tZONE, -HOUR ( 3) }, - { "D", tZONE, -HOUR ( 4) }, - { "E", tZONE, -HOUR ( 5) }, - { "F", tZONE, -HOUR ( 6) }, - { "G", tZONE, -HOUR ( 7) }, - { "H", tZONE, -HOUR ( 8) }, - { "I", tZONE, -HOUR ( 9) }, - { "K", tZONE, -HOUR (10) }, - { "L", tZONE, -HOUR (11) }, - { "M", tZONE, -HOUR (12) }, - { "N", tZONE, HOUR ( 1) }, - { "O", tZONE, HOUR ( 2) }, - { "P", tZONE, HOUR ( 3) }, - { "Q", tZONE, HOUR ( 4) }, - { "R", tZONE, HOUR ( 5) }, - { "S", tZONE, HOUR ( 6) }, - { "T", tZONE, HOUR ( 7) }, - { "U", tZONE, HOUR ( 8) }, - { "V", tZONE, HOUR ( 9) }, - { "W", tZONE, HOUR (10) }, - { "X", tZONE, HOUR (11) }, - { "Y", tZONE, HOUR (12) }, - { "Z", tZONE, HOUR ( 0) }, - { 0, 0, 0 } -}; - - - -static int -to_hour (int hours, int meridian) -{ - switch (meridian) - { - case MER24: - return 0 <= hours && hours < 24 ? hours : -1; - case MERam: - return 0 < hours && hours < 12 ? hours : hours == 12 ? 0 : -1; - case MERpm: - return 0 < hours && hours < 12 ? hours + 12 : hours == 12 ? 12 : -1; - default: - abort (); - } - /* NOTREACHED */ - return 0; -} - -static int -to_year (textint textyear) -{ - int year = textyear.value; - - if (year < 0) - year = -year; - - /* XPG4 suggests that years 00-68 map to 2000-2068, and - years 69-99 map to 1969-1999. */ - if (textyear.digits == 2) - year += year < 69 ? 2000 : 1900; - - return year; -} - -static table const * -lookup_zone (parser_control const *pc, char const *name) -{ - table const *tp; - - /* Try local zone abbreviations first; they're more likely to be right. */ - for (tp = pc->local_time_zone_table; tp->name; tp++) - if (strcmp (name, tp->name) == 0) - return tp; - - for (tp = time_zone_table; tp->name; tp++) - if (strcmp (name, tp->name) == 0) - return tp; - - return 0; -} - -#if ! HAVE_TM_GMTOFF -/* Yield the difference between *A and *B, - measured in seconds, ignoring leap seconds. - The body of this function is taken directly from the GNU C Library; - see src/strftime.c. */ -static int -tm_diff (struct tm const *a, struct tm const *b) -{ - /* Compute intervening leap days correctly even if year is negative. - Take care to avoid int overflow in leap day calculations, - but it's OK to assume that A and B are close to each other. */ - int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3); - int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3); - int a100 = a4 / 25 - (a4 % 25 < 0); - int b100 = b4 / 25 - (b4 % 25 < 0); - int a400 = a100 >> 2; - int b400 = b100 >> 2; - int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400); - int years = a->tm_year - b->tm_year; - int days = (365 * years + intervening_leap_days - + (a->tm_yday - b->tm_yday)); - return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour)) - + (a->tm_min - b->tm_min)) - + (a->tm_sec - b->tm_sec)); -} -#endif /* ! HAVE_TM_GMTOFF */ - -static table const * -lookup_word (parser_control const *pc, char *word) -{ - char *p; - char *q; - size_t wordlen; - table const *tp; - int i; - int abbrev; - - /* Make it uppercase. */ - for (p = word; *p; p++) - if (ISLOWER ((unsigned char) *p)) - *p = toupper ((unsigned char) *p); - - for (tp = meridian_table; tp->name; tp++) - if (strcmp (word, tp->name) == 0) - return tp; - - /* See if we have an abbreviation for a month. */ - wordlen = strlen (word); - abbrev = wordlen == 3 || (wordlen == 4 && word[3] == '.'); - - for (tp = month_and_day_table; tp->name; tp++) - if ((abbrev ? strncmp (word, tp->name, 3) : strcmp (word, tp->name)) == 0) - return tp; - - if ((tp = lookup_zone (pc, word))) - return tp; - - if (strcmp (word, dst_table[0].name) == 0) - return dst_table; - - for (tp = time_units_table; tp->name; tp++) - if (strcmp (word, tp->name) == 0) - return tp; - - /* Strip off any plural and try the units table again. */ - if (word[wordlen - 1] == 'S') - { - word[wordlen - 1] = '\0'; - for (tp = time_units_table; tp->name; tp++) - if (strcmp (word, tp->name) == 0) - return tp; - word[wordlen - 1] = 'S'; /* For "this" in relative_time_table. */ - } - - for (tp = relative_time_table; tp->name; tp++) - if (strcmp (word, tp->name) == 0) - return tp; - - /* Military time zones. */ - if (wordlen == 1) - for (tp = military_table; tp->name; tp++) - if (word[0] == tp->name[0]) - return tp; - - /* Drop out any periods and try the time zone table again. */ - for (i = 0, p = q = word; (*p = *q); q++) - if (*q == '.') - i = 1; - else - p++; - if (i && (tp = lookup_zone (pc, word))) - return tp; - - return 0; -} - -static int -yylex (YYSTYPE *lvalp, parser_control *pc) -{ - unsigned char c; - int count; - - for (;;) - { - while (c = *pc->input, ISSPACE (c)) - pc->input++; - - if (ISDIGIT (c) || c == '-' || c == '+') - { - char const *p; - int sign; - int value; - if (c == '-' || c == '+') - { - sign = c == '-' ? -1 : 1; - c = *++pc->input; - if (! ISDIGIT (c)) - /* skip the '-' sign */ - continue; - } - else - sign = 0; - p = pc->input; - value = 0; - do - { - value = 10 * value + c - '0'; - c = *++p; - } - while (ISDIGIT (c)); - lvalp->textintval.value = sign < 0 ? -value : value; - lvalp->textintval.digits = p - pc->input; - pc->input = p; - return sign ? tSNUMBER : tUNUMBER; - } - - if (ISALPHA (c)) - { - char buff[20]; - char *p = buff; - table const *tp; - - do - { - if (p < buff + sizeof buff - 1) - *p++ = c; - c = *++pc->input; - } - while (ISALPHA (c) || c == '.'); - - *p = '\0'; - tp = lookup_word (pc, buff); - if (! tp) - return '?'; - lvalp->intval = tp->value; - return tp->type; - } - - if (c != '(') - return *pc->input++; - count = 0; - do - { - c = *pc->input++; - if (c == '\0') - return c; - if (c == '(') - count++; - else if (c == ')') - count--; - } - while (count > 0); - } -} - -/* Do nothing if the parser reports an error. */ -static int -yyerror (char *s ATTRIBUTE_UNUSED) -{ - return 0; -} - -/* Parse a date/time string P. Return the corresponding time_t value, - or (time_t) -1 if there is an error. P can be an incomplete or - relative time specification; if so, use *NOW as the basis for the - returned time. */ -time_t -get_date (const char *p, const time_t *now) -{ - time_t Start = now ? *now : time (0); - struct tm *tmp = localtime (&Start); - struct tm tm; - struct tm tm0; - parser_control pc; - - if (! tmp) - return -1; - - pc.input = p; - pc.year.value = tmp->tm_year + TM_YEAR_BASE; - pc.year.digits = 4; - pc.month = tmp->tm_mon + 1; - pc.day = tmp->tm_mday; - pc.hour = tmp->tm_hour; - pc.minutes = tmp->tm_min; - pc.seconds = tmp->tm_sec; - tm.tm_isdst = tmp->tm_isdst; - - pc.meridian = MER24; - pc.rel_seconds = 0; - pc.rel_minutes = 0; - pc.rel_hour = 0; - pc.rel_day = 0; - pc.rel_month = 0; - pc.rel_year = 0; - pc.dates_seen = 0; - pc.days_seen = 0; - pc.rels_seen = 0; - pc.times_seen = 0; - pc.local_zones_seen = 0; - pc.zones_seen = 0; - -#if HAVE_STRUCT_TM_TM_ZONE - pc.local_time_zone_table[0].name = tmp->tm_zone; - pc.local_time_zone_table[0].type = tLOCAL_ZONE; - pc.local_time_zone_table[0].value = tmp->tm_isdst; - pc.local_time_zone_table[1].name = 0; - - /* Probe the names used in the next three calendar quarters, looking - for a tm_isdst different from the one we already have. */ - { - int quarter; - for (quarter = 1; quarter <= 3; quarter++) - { - time_t probe = Start + quarter * (90 * 24 * 60 * 60); - struct tm *probe_tm = localtime (&probe); - if (probe_tm && probe_tm->tm_zone - && probe_tm->tm_isdst != pc.local_time_zone_table[0].value) - { - { - pc.local_time_zone_table[1].name = probe_tm->tm_zone; - pc.local_time_zone_table[1].type = tLOCAL_ZONE; - pc.local_time_zone_table[1].value = probe_tm->tm_isdst; - pc.local_time_zone_table[2].name = 0; - } - break; - } - } - } -#else -#if HAVE_TZNAME - { -# ifndef tzname - extern char *tzname[]; -# endif - int i; - for (i = 0; i < 2; i++) - { - pc.local_time_zone_table[i].name = tzname[i]; - pc.local_time_zone_table[i].type = tLOCAL_ZONE; - pc.local_time_zone_table[i].value = i; - } - pc.local_time_zone_table[i].name = 0; - } -#else - pc.local_time_zone_table[0].name = 0; -#endif -#endif - - if (pc.local_time_zone_table[0].name && pc.local_time_zone_table[1].name - && ! strcmp (pc.local_time_zone_table[0].name, - pc.local_time_zone_table[1].name)) - { - /* This locale uses the same abbrevation for standard and - daylight times. So if we see that abbreviation, we don't - know whether it's daylight time. */ - pc.local_time_zone_table[0].value = -1; - pc.local_time_zone_table[1].name = 0; - } - - if (yyparse (&pc) != 0 - || 1 < pc.times_seen || 1 < pc.dates_seen || 1 < pc.days_seen - || 1 < (pc.local_zones_seen + pc.zones_seen) - || (pc.local_zones_seen && 1 < pc.local_isdst)) - return -1; - - tm.tm_year = to_year (pc.year) - TM_YEAR_BASE + pc.rel_year; - tm.tm_mon = pc.month - 1 + pc.rel_month; - tm.tm_mday = pc.day + pc.rel_day; - if (pc.times_seen || (pc.rels_seen && ! pc.dates_seen && ! pc.days_seen)) - { - tm.tm_hour = to_hour (pc.hour, pc.meridian); - if (tm.tm_hour < 0) - return -1; - tm.tm_min = pc.minutes; - tm.tm_sec = pc.seconds; - } - else - { - tm.tm_hour = tm.tm_min = tm.tm_sec = 0; - } - - /* Let mktime deduce tm_isdst if we have an absolute time stamp, - or if the relative time stamp mentions days, months, or years. */ - if (pc.dates_seen | pc.days_seen | pc.times_seen | pc.rel_day - | pc.rel_month | pc.rel_year) - tm.tm_isdst = -1; - - /* But if the input explicitly specifies local time with or without - DST, give mktime that information. */ - if (pc.local_zones_seen) - tm.tm_isdst = pc.local_isdst; - - tm0 = tm; - - Start = mktime (&tm); - - if (Start == (time_t) -1) - { - - /* Guard against falsely reporting errors near the time_t boundaries - when parsing times in other time zones. For example, if the min - time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead - of UTC, then the min localtime value is 1970-01-01 08:00:00; if - we apply mktime to 1970-01-01 00:00:00 we will get an error, so - we apply mktime to 1970-01-02 08:00:00 instead and adjust the time - zone by 24 hours to compensate. This algorithm assumes that - there is no DST transition within a day of the time_t boundaries. */ - if (pc.zones_seen) - { - tm = tm0; - if (tm.tm_year <= EPOCH_YEAR - TM_YEAR_BASE) - { - tm.tm_mday++; - pc.time_zone += 24 * 60; - } - else - { - tm.tm_mday--; - pc.time_zone -= 24 * 60; - } - Start = mktime (&tm); - } - - if (Start == (time_t) -1) - return Start; - } - - if (pc.days_seen && ! pc.dates_seen) - { - tm.tm_mday += ((pc.day_number - tm.tm_wday + 7) % 7 - + 7 * (pc.day_ordinal - (0 < pc.day_ordinal))); - tm.tm_isdst = -1; - Start = mktime (&tm); - if (Start == (time_t) -1) - return Start; - } - - if (pc.zones_seen) - { - int delta = pc.time_zone * 60; -#ifdef HAVE_TM_GMTOFF - delta -= tm.tm_gmtoff; -#else - struct tm *gmt = gmtime (&Start); - if (! gmt) - return -1; - delta -= tm_diff (&tm, gmt); -#endif - if ((Start < Start - delta) != (delta < 0)) - return -1; /* time_t overflow */ - Start -= delta; - } - - /* Add relative hours, minutes, and seconds. Ignore leap seconds; - i.e. "+ 10 minutes" means 600 seconds, even if one of them is a - leap second. Typically this is not what the user wants, but it's - too hard to do it the other way, because the time zone indicator - must be applied before relative times, and if mktime is applied - again the time zone will be lost. */ - { - time_t t0 = Start; - long d1 = 60 * 60 * (long) pc.rel_hour; - time_t t1 = t0 + d1; - long d2 = 60 * (long) pc.rel_minutes; - time_t t2 = t1 + d2; - int d3 = pc.rel_seconds; - time_t t3 = t2 + d3; - if ((d1 / (60 * 60) ^ pc.rel_hour) - | (d2 / 60 ^ pc.rel_minutes) - | ((t0 + d1 < t0) ^ (d1 < 0)) - | ((t1 + d2 < t1) ^ (d2 < 0)) - | ((t2 + d3 < t2) ^ (d3 < 0))) - return -1; - Start = t3; - } - - return Start; -} - -#if TEST - -#include <stdio.h> - -int -main (int ac, char **av) -{ - char buff[BUFSIZ]; - time_t d; - - printf ("Enter date, or blank line to exit.\n\t> "); - fflush (stdout); - - buff[BUFSIZ - 1] = 0; - while (fgets (buff, BUFSIZ - 1, stdin) && buff[0]) - { - d = get_date (buff, 0); - if (d == (time_t) -1) - printf ("Bad format - couldn't convert.\n"); - else - printf ("%s", ctime (&d)); - printf ("\t> "); - fflush (stdout); - } - return 0; -} -#endif /* defined TEST */ - - |