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-
- /* A Bison parser, made from getdate.y
- by GNU Bison version 1.25
- */
-
- #define YYBISON 1 /* Identify Bison output. */
-
- #define tAGO 258
- #define tDAY 259
- #define tDAY_UNIT 260
- #define tDAYZONE 261
- #define tDST 262
- #define tHOUR_UNIT 263
- #define tID 264
- #define tMERIDIAN 265
- #define tMINUTE_UNIT 266
- #define tMONTH 267
- #define tMONTH_UNIT 268
- #define tSEC_UNIT 269
- #define tSNUMBER 270
- #define tUNUMBER 271
- #define tYEAR_UNIT 272
- #define tZONE 273
-
- #line 1 "getdate.y"
-
- /*
- ** 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;
- **
- ** This grammar has 13 shift/reduce conflicts.
- **
- ** This code is in the public domain and has no copyright.
- */
-
- #ifdef HAVE_CONFIG_H
- # include <config.h>
- # ifdef FORCE_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 <stdio.h>
- #include <ctype.h>
-
- #if defined (STDC_HEADERS) || (!defined (isascii) && !defined (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 ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (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 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 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)
-
- #include "getdate.h"
-
- #if defined (STDC_HEADERS) || defined (USG)
- # include <string.h>
- #endif
-
- /* Some old versions of bison generate parsers that use bcopy.
- That loses on systems that don't provide the function, so we have
- to redefine it here. */
- #if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
- # define bcopy(from, to, len) memcpy ((to), (from), (len))
- #endif
-
- extern struct tm *gmtime ();
- extern struct tm *localtime ();
- extern time_t mktime ();
-
- /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
- as well as gratuitiously global symbol names, so we can have multiple
- yacc generated parsers in the same program. Note that these are only
- the variables produced by yacc. If other parser generators (bison,
- byacc, etc) produce additional global names that conflict at link time,
- then those parser generators need to be fixed instead of adding those
- names to this list. */
-
- #define yymaxdepth gd_maxdepth
- #define yyparse gd_parse
- #define yylex gd_lex
- #define yyerror gd_error
- #define yylval gd_lval
- #define yychar gd_char
- #define yydebug gd_debug
- #define yypact gd_pact
- #define yyr1 gd_r1
- #define yyr2 gd_r2
- #define yydef gd_def
- #define yychk gd_chk
- #define yypgo gd_pgo
- #define yyact gd_act
- #define yyexca gd_exca
- #define yyerrflag gd_errflag
- #define yynerrs gd_nerrs
- #define yyps gd_ps
- #define yypv gd_pv
- #define yys gd_s
- #define yy_yys gd_yys
- #define yystate gd_state
- #define yytmp gd_tmp
- #define yyv gd_v
- #define yy_yyv gd_yyv
- #define yyval gd_val
- #define yylloc gd_lloc
- #define yyreds gd_reds /* With YYDEBUG defined */
- #define yytoks gd_toks /* With YYDEBUG defined */
- #define yylhs gd_yylhs
- #define yylen gd_yylen
- #define yydefred gd_yydefred
- #define yydgoto gd_yydgoto
- #define yysindex gd_yysindex
- #define yyrindex gd_yyrindex
- #define yygindex gd_yygindex
- #define yytable gd_yytable
- #define yycheck gd_yycheck
-
- static int yylex ();
- static int yyerror ();
-
- #define EPOCH 1970
- #define HOUR(x) ((x) * 60)
-
- #define MAX_BUFF_LEN 128 /* size of buffer to read the date into */
-
- /*
- ** An entry in the lexical lookup table.
- */
- typedef struct _TABLE {
- const char *name;
- int type;
- int value;
- } TABLE;
-
-
- /*
- ** Meridian: am, pm, or 24-hour style.
- */
- typedef enum _MERIDIAN {
- MERam, MERpm, MER24
- } MERIDIAN;
-
-
- /*
- ** Global variables. We could get rid of most of these by using a good
- ** union as the yacc stack. (This routine was originally written before
- ** yacc had the %union construct.) Maybe someday; right now we only use
- ** the %union very rarely.
- */
- static const char *yyInput;
- static int yyDayOrdinal;
- static int yyDayNumber;
- static int yyHaveDate;
- static int yyHaveDay;
- static int yyHaveRel;
- static int yyHaveTime;
- static int yyHaveZone;
- static int yyTimezone;
- static int yyDay;
- static int yyHour;
- static int yyMinutes;
- static int yyMonth;
- static int yySeconds;
- static int yyYear;
- static MERIDIAN yyMeridian;
- static int yyRelDay;
- static int yyRelHour;
- static int yyRelMinutes;
- static int yyRelMonth;
- static int yyRelSeconds;
- static int yyRelYear;
-
-
- #line 175 "getdate.y"
- typedef union {
- int Number;
- enum _MERIDIAN Meridian;
- } YYSTYPE;
- #include <stdio.h>
-
- #ifndef __cplusplus
- #ifndef __STDC__
- #define const
- #endif
- #endif
-
-
-
- #define YYFINAL 61
- #define YYFLAG -32768
- #define YYNTBASE 22
-
- #define YYTRANSLATE(x) ((unsigned)(x) <= 273 ? yytranslate[x] : 32)
-
- static const 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 != 0
- static const short yyprhs[] = { 0,
- 0, 1, 4, 6, 8, 10, 12, 14, 16, 19,
- 24, 29, 36, 43, 45, 47, 50, 52, 55, 58,
- 62, 68, 72, 76, 79, 84, 87, 91, 94, 96,
- 99, 102, 104, 107, 110, 112, 115, 118, 120, 123,
- 126, 128, 131, 134, 136, 139, 142, 144, 146, 147
- };
-
- static const short yyrhs[] = { -1,
- 22, 23, 0, 24, 0, 25, 0, 27, 0, 26,
- 0, 28, 0, 30, 0, 16, 10, 0, 16, 19,
- 16, 31, 0, 16, 19, 16, 15, 0, 16, 19,
- 16, 19, 16, 31, 0, 16, 19, 16, 19, 16,
- 15, 0, 18, 0, 6, 0, 18, 7, 0, 4,
- 0, 4, 20, 0, 16, 4, 0, 16, 21, 16,
- 0, 16, 21, 16, 21, 16, 0, 16, 15, 15,
- 0, 16, 12, 15, 0, 12, 16, 0, 12, 16,
- 20, 16, 0, 16, 12, 0, 16, 12, 16, 0,
- 29, 3, 0, 29, 0, 16, 17, 0, 15, 17,
- 0, 17, 0, 16, 13, 0, 15, 13, 0, 13,
- 0, 16, 5, 0, 15, 5, 0, 5, 0, 16,
- 8, 0, 15, 8, 0, 8, 0, 16, 11, 0,
- 15, 11, 0, 11, 0, 16, 14, 0, 15, 14,
- 0, 14, 0, 16, 0, 0, 10, 0
- };
-
- #endif
-
- #if YYDEBUG != 0
- static const short yyrline[] = { 0,
- 191, 192, 195, 198, 201, 204, 207, 210, 213, 219,
- 225, 234, 240, 252, 255, 258, 264, 268, 272, 278,
- 282, 300, 306, 312, 316, 321, 325, 332, 340, 343,
- 346, 349, 352, 355, 358, 361, 364, 367, 370, 373,
- 376, 379, 382, 385, 388, 391, 394, 399, 432, 436
- };
- #endif
-
-
- #if YYDEBUG != 0 || defined (YYERROR_VERBOSE)
-
- static const char * const yytname[] = { "$","error","$undefined.","tAGO","tDAY",
- "tDAY_UNIT","tDAYZONE","tDST","tHOUR_UNIT","tID","tMERIDIAN","tMINUTE_UNIT",
- "tMONTH","tMONTH_UNIT","tSEC_UNIT","tSNUMBER","tUNUMBER","tYEAR_UNIT","tZONE",
- "':'","','","'/'","spec","item","time","zone","day","date","rel","relunit","number",
- "o_merid", NULL
- };
- #endif
-
- static const short yyr1[] = { 0,
- 22, 22, 23, 23, 23, 23, 23, 23, 24, 24,
- 24, 24, 24, 25, 25, 25, 26, 26, 26, 27,
- 27, 27, 27, 27, 27, 27, 27, 28, 28, 29,
- 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
- 29, 29, 29, 29, 29, 29, 29, 30, 31, 31
- };
-
- static const short yyr2[] = { 0,
- 0, 2, 1, 1, 1, 1, 1, 1, 2, 4,
- 4, 6, 6, 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
- };
-
- static const short yydefact[] = { 1,
- 0, 17, 38, 15, 41, 44, 0, 35, 47, 0,
- 48, 32, 14, 2, 3, 4, 6, 5, 7, 29,
- 8, 18, 24, 37, 40, 43, 34, 46, 31, 19,
- 36, 39, 9, 42, 26, 33, 45, 0, 30, 0,
- 0, 16, 28, 0, 23, 27, 22, 49, 20, 25,
- 50, 11, 0, 10, 0, 49, 21, 13, 12, 0,
- 0
- };
-
- static const short yydefgoto[] = { 1,
- 14, 15, 16, 17, 18, 19, 20, 21, 54
- };
-
- static const short yypact[] = {-32768,
- 0, -19,-32768,-32768,-32768,-32768, -13,-32768,-32768, 30,
- 15,-32768, 14,-32768,-32768,-32768,-32768,-32768,-32768, 19,
- -32768,-32768, 4,-32768,-32768,-32768,-32768,-32768,-32768,-32768,
- -32768,-32768,-32768,-32768, -6,-32768,-32768, 16,-32768, 17,
- 23,-32768,-32768, 24,-32768,-32768,-32768, 27, 28,-32768,
- -32768,-32768, 29,-32768, 32, -8,-32768,-32768,-32768, 50,
- -32768
- };
-
- static const short yypgoto[] = {-32768,
- -32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, -5
- };
-
-
- #define YYLAST 51
-
-
- static const short yytable[] = { 60,
- 22, 51, 23, 2, 3, 4, 58, 5, 45, 46,
- 6, 7, 8, 9, 10, 11, 12, 13, 30, 31,
- 42, 43, 32, 44, 33, 34, 35, 36, 37, 38,
- 47, 39, 48, 40, 24, 41, 51, 25, 49, 50,
- 26, 52, 27, 28, 56, 53, 29, 57, 55, 61,
- 59
- };
-
- static const short yycheck[] = { 0,
- 20, 10, 16, 4, 5, 6, 15, 8, 15, 16,
- 11, 12, 13, 14, 15, 16, 17, 18, 4, 5,
- 7, 3, 8, 20, 10, 11, 12, 13, 14, 15,
- 15, 17, 16, 19, 5, 21, 10, 8, 16, 16,
- 11, 15, 13, 14, 16, 19, 17, 16, 21, 0,
- 56
- };
- /* -*-C-*- Note some compilers choke on comments on `#line' lines. */
- #line 3 "/p/share/bison.simple"
-
- /* Skeleton output parser for bison,
- Copyright (C) 1984, 1989, 1990 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., 675 Mass Ave, Cambridge, MA 02139, 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. */
-
- #ifndef alloca
- #ifdef __GNUC__
- #define alloca __builtin_alloca
- #else /* not GNU C. */
- #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || defined (HAVE_ALLOCA_H)
- #include <alloca.h>
- #else /* not sparc */
- #if defined (MSDOS) && !defined (__TURBOC__)
- #include <malloc.h>
- #else /* not MSDOS, or __TURBOC__ */
- #if defined(_AIX)
- #include <malloc.h>
- #pragma alloca
- #else /* not MSDOS, __TURBOC__, or _AIX */
- #ifdef __hpux
- #ifdef __cplusplus
- extern "C" {
- void *alloca (unsigned int);
- };
- #else /* not __cplusplus */
- void *alloca ();
- #endif /* not __cplusplus */
- #endif /* __hpux */
- #endif /* not _AIX */
- #endif /* not MSDOS, or __TURBOC__ */
- #endif /* not sparc. */
- #endif /* not GNU C. */
- #endif /* alloca not defined. */
-
- /* This is the parser code that is written into each bison parser
- when the %semantic_parser declaration is not specified in the grammar.
- It was written by Richard Stallman by simplifying the hairy parser
- used when %semantic_parser is specified. */
-
- /* Note: there must be only one dollar sign in this file.
- It is replaced by the list of actions, each action
- as one case of the switch. */
-
- #define yyerrok (yyerrstatus = 0)
- #define yyclearin (yychar = YYEMPTY)
- #define YYEMPTY -2
- #define YYEOF 0
- #define YYACCEPT return(0)
- #define YYABORT return(1)
- #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); \
- yychar1 = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
- goto yybackup; \
- } \
- else \
- { yyerror ("syntax error: cannot back up"); YYERROR; } \
- while (0)
-
- #define YYTERROR 1
- #define YYERRCODE 256
-
- #ifndef YYPURE
- #define YYLEX yylex()
- #endif
-
- #ifdef YYPURE
- #ifdef YYLSP_NEEDED
- #ifdef YYLEX_PARAM
- #define YYLEX yylex(&yylval, &yylloc, YYLEX_PARAM)
- #else
- #define YYLEX yylex(&yylval, &yylloc)
- #endif
- #else /* not YYLSP_NEEDED */
- #ifdef YYLEX_PARAM
- #define YYLEX yylex(&yylval, YYLEX_PARAM)
- #else
- #define YYLEX yylex(&yylval)
- #endif
- #endif /* not YYLSP_NEEDED */
- #endif
-
- /* If nonreentrant, generate the variables here */
-
- #ifndef YYPURE
-
- int yychar; /* the lookahead symbol */
- YYSTYPE yylval; /* the semantic value of the */
- /* lookahead symbol */
-
- #ifdef YYLSP_NEEDED
- YYLTYPE yylloc; /* location data for the lookahead */
- /* symbol */
- #endif
-
- int yynerrs; /* number of parse errors so far */
- #endif /* not YYPURE */
-
- #if YYDEBUG != 0
- int yydebug; /* nonzero means print parse trace */
- /* Since this is uninitialized, it does not stop multiple parsers
- from coexisting. */
- #endif
-
- /* YYINITDEPTH indicates the initial size of the parser's stacks */
-
- #ifndef YYINITDEPTH
- #define YYINITDEPTH 200
- #endif
-
- /* YYMAXDEPTH is the maximum size the stacks can grow to
- (effective only if the built-in stack extension method is used). */
-
- #if YYMAXDEPTH == 0
- #undef YYMAXDEPTH
- #endif
-
- #ifndef YYMAXDEPTH
- #define YYMAXDEPTH 10000
- #endif
-
- /* Prevent warning if -Wstrict-prototypes. */
- #ifdef __GNUC__
- int yyparse (void);
- #endif
-
- #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
- #define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT)
- #else /* not GNU C or C++ */
- #ifndef __cplusplus
-
- /* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
- static void
- __yy_memcpy (to, from, count)
- char *to;
- char *from;
- int count;
- {
- register char *f = from;
- register char *t = to;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
- }
-
- #else /* __cplusplus */
-
- /* This is the most reliable way to avoid incompatibilities
- in available built-in functions on various systems. */
- static void
- __yy_memcpy (char *to, char *from, int count)
- {
- register char *t = to;
- register char *f = from;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
- }
-
- #endif
- #endif
-
- #line 196 "/p/share/bison.simple"
-
- /* The user can define YYPARSE_PARAM as the name of an argument to be passed
- into yyparse. The argument should have type void *.
- It should actually point to an object.
- Grammar actions can access the variable by casting it
- to the proper pointer type. */
-
- #ifdef YYPARSE_PARAM
- #ifdef __cplusplus
- #define YYPARSE_PARAM_ARG void *YYPARSE_PARAM
- #define YYPARSE_PARAM_DECL
- #else /* not __cplusplus */
- #define YYPARSE_PARAM_ARG YYPARSE_PARAM
- #define YYPARSE_PARAM_DECL void *YYPARSE_PARAM;
- #endif /* not __cplusplus */
- #else /* not YYPARSE_PARAM */
- #define YYPARSE_PARAM_ARG
- #define YYPARSE_PARAM_DECL
- #endif /* not YYPARSE_PARAM */
-
- int
- yyparse(YYPARSE_PARAM_ARG)
- YYPARSE_PARAM_DECL
- {
- register int yystate;
- register int yyn;
- register short *yyssp;
- register YYSTYPE *yyvsp;
- int yyerrstatus; /* number of tokens to shift before error messages enabled */
- int yychar1 = 0; /* lookahead token as an internal (translated) token number */
-
- short yyssa[YYINITDEPTH]; /* the state stack */
- YYSTYPE yyvsa[YYINITDEPTH]; /* the semantic value stack */
-
- short *yyss = yyssa; /* refer to the stacks thru separate pointers */
- YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
-
- #ifdef YYLSP_NEEDED
- YYLTYPE yylsa[YYINITDEPTH]; /* the location stack */
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
-
- #define YYPOPSTACK (yyvsp--, yyssp--, yylsp--)
- #else
- #define YYPOPSTACK (yyvsp--, yyssp--)
- #endif
-
- int yystacksize = YYINITDEPTH;
-
- #ifdef YYPURE
- int yychar;
- YYSTYPE yylval;
- int yynerrs;
- #ifdef YYLSP_NEEDED
- YYLTYPE yylloc;
- #endif
- #endif
-
- YYSTYPE yyval; /* the variable used to return */
- /* semantic values from the action */
- /* routines */
-
- int yylen;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Starting parse\n");
- #endif
-
- 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 - 1;
- yyvsp = yyvs;
- #ifdef YYLSP_NEEDED
- yylsp = yyls;
- #endif
-
- /* Push a new state, which is found in yystate . */
- /* In all cases, when you get here, the value and location stacks
- have just been pushed. so pushing a state here evens the stacks. */
- yynewstate:
-
- *++yyssp = yystate;
-
- if (yyssp >= yyss + yystacksize - 1)
- {
- /* 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;
- #ifdef YYLSP_NEEDED
- YYLTYPE *yyls1 = yyls;
- #endif
-
- /* Get the current used size of the three stacks, in elements. */
- int size = yyssp - yyss + 1;
-
- #ifdef yyoverflow
- /* Each stack pointer address is followed by the size of
- the data in use in that stack, in bytes. */
- #ifdef YYLSP_NEEDED
- /* 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, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yyls1, size * sizeof (*yylsp),
- &yystacksize);
- #else
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- &yystacksize);
- #endif
-
- yyss = yyss1; yyvs = yyvs1;
- #ifdef YYLSP_NEEDED
- yyls = yyls1;
- #endif
- #else /* no yyoverflow */
- /* Extend the stack our own way. */
- if (yystacksize >= YYMAXDEPTH)
- {
- yyerror("parser stack overflow");
- return 2;
- }
- yystacksize *= 2;
- if (yystacksize > YYMAXDEPTH)
- yystacksize = YYMAXDEPTH;
- yyss = (short *) alloca (yystacksize * sizeof (*yyssp));
- __yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
- yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
- __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
- #ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
- __yy_memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp));
- #endif
- #endif /* no yyoverflow */
-
- yyssp = yyss + size - 1;
- yyvsp = yyvs + size - 1;
- #ifdef YYLSP_NEEDED
- yylsp = yyls + size - 1;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Stack size increased to %d\n", yystacksize);
- #endif
-
- if (yyssp >= yyss + yystacksize - 1)
- YYABORT;
- }
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Entering state %d\n", yystate);
- #endif
-
- goto 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 == YYFLAG)
- goto yydefault;
-
- /* Not known => get a lookahead token if don't already have one. */
-
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
- if (yychar == YYEMPTY)
- {
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Reading a token: ");
- #endif
- yychar = YYLEX;
- }
-
- /* Convert token to internal form (in yychar1) for indexing tables with */
-
- if (yychar <= 0) /* This means end of input. */
- {
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Now at end of input.\n");
- #endif
- }
- else
- {
- yychar1 = YYTRANSLATE(yychar);
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]);
- /* Give the individual parser a way to print the precise meaning
- of a token, for further debugging info. */
- #ifdef YYPRINT
- YYPRINT (stderr, yychar, yylval);
- #endif
- fprintf (stderr, ")\n");
- }
- #endif
- }
-
- yyn += yychar1;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
- goto yydefault;
-
- yyn = yytable[yyn];
-
- /* yyn is what to do for this token type in this state.
- Negative => reduce, -yyn is rule number.
- Positive => shift, yyn is new state.
- New state is final state => don't bother to shift,
- just return success.
- 0, or most negative number => error. */
-
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrlab;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrlab;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
- #endif
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- /* count tokens shifted since error; after three, turn off error status. */
- if (yyerrstatus) yyerrstatus--;
-
- yystate = yyn;
- goto yynewstate;
-
- /* Do the default action for the current state. */
- yydefault:
-
- yyn = yydefact[yystate];
- if (yyn == 0)
- goto yyerrlab;
-
- /* Do a reduction. yyn is the number of a rule to reduce with. */
- yyreduce:
- yylen = yyr2[yyn];
- if (yylen > 0)
- yyval = yyvsp[1-yylen]; /* implement default value of the action */
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- int i;
-
- fprintf (stderr, "Reducing via rule %d (line %d), ",
- yyn, yyrline[yyn]);
-
- /* Print the symbols being reduced, and their result. */
- for (i = yyprhs[yyn]; yyrhs[i] > 0; i++)
- fprintf (stderr, "%s ", yytname[yyrhs[i]]);
- fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]);
- }
- #endif
-
-
- switch (yyn) {
-
- case 3:
- #line 195 "getdate.y"
- {
- yyHaveTime++;
- ;
- break;}
- case 4:
- #line 198 "getdate.y"
- {
- yyHaveZone++;
- ;
- break;}
- case 5:
- #line 201 "getdate.y"
- {
- yyHaveDate++;
- ;
- break;}
- case 6:
- #line 204 "getdate.y"
- {
- yyHaveDay++;
- ;
- break;}
- case 7:
- #line 207 "getdate.y"
- {
- yyHaveRel++;
- ;
- break;}
- case 9:
- #line 213 "getdate.y"
- {
- yyHour = yyvsp[-1].Number;
- yyMinutes = 0;
- yySeconds = 0;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 10:
- #line 219 "getdate.y"
- {
- yyHour = yyvsp[-3].Number;
- yyMinutes = yyvsp[-1].Number;
- yySeconds = 0;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 11:
- #line 225 "getdate.y"
- {
- yyHour = yyvsp[-3].Number;
- yyMinutes = yyvsp[-1].Number;
- yyMeridian = MER24;
- yyHaveZone++;
- yyTimezone = (yyvsp[0].Number < 0
- ? -yyvsp[0].Number % 100 + (-yyvsp[0].Number / 100) * 60
- : - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60));
- ;
- break;}
- case 12:
- #line 234 "getdate.y"
- {
- yyHour = yyvsp[-5].Number;
- yyMinutes = yyvsp[-3].Number;
- yySeconds = yyvsp[-1].Number;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 13:
- #line 240 "getdate.y"
- {
- yyHour = yyvsp[-5].Number;
- yyMinutes = yyvsp[-3].Number;
- yySeconds = yyvsp[-1].Number;
- yyMeridian = MER24;
- yyHaveZone++;
- yyTimezone = (yyvsp[0].Number < 0
- ? -yyvsp[0].Number % 100 + (-yyvsp[0].Number / 100) * 60
- : - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60));
- ;
- break;}
- case 14:
- #line 252 "getdate.y"
- {
- yyTimezone = yyvsp[0].Number;
- ;
- break;}
- case 15:
- #line 255 "getdate.y"
- {
- yyTimezone = yyvsp[0].Number - 60;
- ;
- break;}
- case 16:
- #line 259 "getdate.y"
- {
- yyTimezone = yyvsp[-1].Number - 60;
- ;
- break;}
- case 17:
- #line 264 "getdate.y"
- {
- yyDayOrdinal = 1;
- yyDayNumber = yyvsp[0].Number;
- ;
- break;}
- case 18:
- #line 268 "getdate.y"
- {
- yyDayOrdinal = 1;
- yyDayNumber = yyvsp[-1].Number;
- ;
- break;}
- case 19:
- #line 272 "getdate.y"
- {
- yyDayOrdinal = yyvsp[-1].Number;
- yyDayNumber = yyvsp[0].Number;
- ;
- break;}
- case 20:
- #line 278 "getdate.y"
- {
- yyMonth = yyvsp[-2].Number;
- yyDay = yyvsp[0].Number;
- ;
- break;}
- case 21:
- #line 282 "getdate.y"
- {
- /* Interpret as YYYY/MM/DD if $1 >= 1000, 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 (yyvsp[-4].Number >= 1000)
- {
- yyYear = yyvsp[-4].Number;
- yyMonth = yyvsp[-2].Number;
- yyDay = yyvsp[0].Number;
- }
- else
- {
- yyMonth = yyvsp[-4].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- }
- ;
- break;}
- case 22:
- #line 300 "getdate.y"
- {
- /* ISO 8601 format. yyyy-mm-dd. */
- yyYear = yyvsp[-2].Number;
- yyMonth = -yyvsp[-1].Number;
- yyDay = -yyvsp[0].Number;
- ;
- break;}
- case 23:
- #line 306 "getdate.y"
- {
- /* e.g. 17-JUN-1992. */
- yyDay = yyvsp[-2].Number;
- yyMonth = yyvsp[-1].Number;
- yyYear = -yyvsp[0].Number;
- ;
- break;}
- case 24:
- #line 312 "getdate.y"
- {
- yyMonth = yyvsp[-1].Number;
- yyDay = yyvsp[0].Number;
- ;
- break;}
- case 25:
- #line 316 "getdate.y"
- {
- yyMonth = yyvsp[-3].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- ;
- break;}
- case 26:
- #line 321 "getdate.y"
- {
- yyMonth = yyvsp[0].Number;
- yyDay = yyvsp[-1].Number;
- ;
- break;}
- case 27:
- #line 325 "getdate.y"
- {
- yyMonth = yyvsp[-1].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- ;
- break;}
- case 28:
- #line 332 "getdate.y"
- {
- yyRelSeconds = -yyRelSeconds;
- yyRelMinutes = -yyRelMinutes;
- yyRelHour = -yyRelHour;
- yyRelDay = -yyRelDay;
- yyRelMonth = -yyRelMonth;
- yyRelYear = -yyRelYear;
- ;
- break;}
- case 30:
- #line 343 "getdate.y"
- {
- yyRelYear += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 31:
- #line 346 "getdate.y"
- {
- yyRelYear += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 32:
- #line 349 "getdate.y"
- {
- yyRelYear++;
- ;
- break;}
- case 33:
- #line 352 "getdate.y"
- {
- yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 34:
- #line 355 "getdate.y"
- {
- yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 35:
- #line 358 "getdate.y"
- {
- yyRelMonth++;
- ;
- break;}
- case 36:
- #line 361 "getdate.y"
- {
- yyRelDay += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 37:
- #line 364 "getdate.y"
- {
- yyRelDay += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 38:
- #line 367 "getdate.y"
- {
- yyRelDay++;
- ;
- break;}
- case 39:
- #line 370 "getdate.y"
- {
- yyRelHour += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 40:
- #line 373 "getdate.y"
- {
- yyRelHour += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 41:
- #line 376 "getdate.y"
- {
- yyRelHour++;
- ;
- break;}
- case 42:
- #line 379 "getdate.y"
- {
- yyRelMinutes += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 43:
- #line 382 "getdate.y"
- {
- yyRelMinutes += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 44:
- #line 385 "getdate.y"
- {
- yyRelMinutes++;
- ;
- break;}
- case 45:
- #line 388 "getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 46:
- #line 391 "getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 47:
- #line 394 "getdate.y"
- {
- yyRelSeconds++;
- ;
- break;}
- case 48:
- #line 400 "getdate.y"
- {
- if (yyHaveTime && yyHaveDate && !yyHaveRel)
- yyYear = yyvsp[0].Number;
- else
- {
- if (yyvsp[0].Number>10000)
- {
- yyHaveDate++;
- yyDay= (yyvsp[0].Number)%100;
- yyMonth= (yyvsp[0].Number/100)%100;
- yyYear = yyvsp[0].Number/10000;
- }
- else
- {
- yyHaveTime++;
- if (yyvsp[0].Number < 100)
- {
- yyHour = yyvsp[0].Number;
- yyMinutes = 0;
- }
- else
- {
- yyHour = yyvsp[0].Number / 100;
- yyMinutes = yyvsp[0].Number % 100;
- }
- yySeconds = 0;
- yyMeridian = MER24;
- }
- }
- ;
- break;}
- case 49:
- #line 433 "getdate.y"
- {
- yyval.Meridian = MER24;
- ;
- break;}
- case 50:
- #line 437 "getdate.y"
- {
- yyval.Meridian = yyvsp[0].Meridian;
- ;
- break;}
- }
- /* the action file gets copied in in place of this dollarsign */
- #line 498 "/p/share/bison.simple"
-
- yyvsp -= yylen;
- yyssp -= yylen;
- #ifdef YYLSP_NEEDED
- yylsp -= yylen;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- *++yyvsp = yyval;
-
- #ifdef YYLSP_NEEDED
- yylsp++;
- if (yylen == 0)
- {
- yylsp->first_line = yylloc.first_line;
- yylsp->first_column = yylloc.first_column;
- yylsp->last_line = (yylsp-1)->last_line;
- yylsp->last_column = (yylsp-1)->last_column;
- yylsp->text = 0;
- }
- else
- {
- yylsp->last_line = (yylsp+yylen-1)->last_line;
- yylsp->last_column = (yylsp+yylen-1)->last_column;
- }
- #endif
-
- /* 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 - YYNTBASE] + *yyssp;
- if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
- yystate = yytable[yystate];
- else
- yystate = yydefgoto[yyn - YYNTBASE];
-
- goto yynewstate;
-
- yyerrlab: /* here on detecting error */
-
- if (! yyerrstatus)
- /* If not already recovering from an error, report this error. */
- {
- ++yynerrs;
-
- #ifdef YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (yyn > YYFLAG && yyn < YYLAST)
- {
- int size = 0;
- char *msg;
- int x, count;
-
- count = 0;
- /* Start X at -yyn if nec to avoid negative indexes in yycheck. */
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- size += strlen(yytname[x]) + 15, count++;
- msg = (char *) malloc(size + 15);
- if (msg != 0)
- {
- strcpy(msg, "parse error");
-
- if (count < 5)
- {
- count = 0;
- for (x = (yyn < 0 ? -yyn : 0);
- x < (sizeof(yytname) / sizeof(char *)); x++)
- if (yycheck[x + yyn] == x)
- {
- strcat(msg, count == 0 ? ", expecting `" : " or `");
- strcat(msg, yytname[x]);
- strcat(msg, "'");
- count++;
- }
- }
- yyerror(msg);
- free(msg);
- }
- else
- yyerror ("parse error; also virtual memory exceeded");
- }
- else
- #endif /* YYERROR_VERBOSE */
- yyerror("parse error");
- }
-
- goto yyerrlab1;
- yyerrlab1: /* here on error raised explicitly by an action */
-
- 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)
- YYABORT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
- #endif
-
- yychar = YYEMPTY;
- }
-
- /* Else will try to reuse lookahead token
- after shifting the error token. */
-
- yyerrstatus = 3; /* Each real token shifted decrements this */
-
- goto yyerrhandle;
-
- yyerrdefault: /* current state does not do anything special for the error token. */
-
- #if 0
- /* This is wrong; only states that explicitly want error tokens
- should shift them. */
- yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
- if (yyn) goto yydefault;
- #endif
-
- yyerrpop: /* pop the current state because it cannot handle the error token */
-
- if (yyssp == yyss) YYABORT;
- yyvsp--;
- yystate = *--yyssp;
- #ifdef YYLSP_NEEDED
- yylsp--;
- #endif
-
- #if YYDEBUG != 0
- if (yydebug)
- {
- short *ssp1 = yyss - 1;
- fprintf (stderr, "Error: state stack now");
- while (ssp1 != yyssp)
- fprintf (stderr, " %d", *++ssp1);
- fprintf (stderr, "\n");
- }
- #endif
-
- yyerrhandle:
-
- yyn = yypact[yystate];
- if (yyn == YYFLAG)
- goto yyerrdefault;
-
- yyn += YYTERROR;
- if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
- goto yyerrdefault;
-
- yyn = yytable[yyn];
- if (yyn < 0)
- {
- if (yyn == YYFLAG)
- goto yyerrpop;
- yyn = -yyn;
- goto yyreduce;
- }
- else if (yyn == 0)
- goto yyerrpop;
-
- if (yyn == YYFINAL)
- YYACCEPT;
-
- #if YYDEBUG != 0
- if (yydebug)
- fprintf(stderr, "Shifting error token, ");
- #endif
-
- *++yyvsp = yylval;
- #ifdef YYLSP_NEEDED
- *++yylsp = yylloc;
- #endif
-
- yystate = yyn;
- goto yynewstate;
- }
- #line 442 "getdate.y"
-
-
- /* Month and day table. */
- static TABLE const MonthDayTable[] = {
- { "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 },
- { NULL }
- };
-
- /* Time units table. */
- static TABLE const UnitsTable[] = {
- { "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 },
- { NULL }
- };
-
- /* Assorted relative-time words. */
- static TABLE const OtherTable[] = {
- { "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 },
- { "yesterday", tMINUTE_UNIT, -1 * 24 * 60 },
- { "today", tMINUTE_UNIT, 0 },
- { "now", tMINUTE_UNIT, 0 },
- { "last", tUNUMBER, -1 },
- { "this", tMINUTE_UNIT, 0 },
- { "next", tUNUMBER, 2 },
- { "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 },
- { NULL }
- };
-
- /* The timezone table. */
- static TABLE const TimezoneTable[] = {
- { "gmt", tZONE, HOUR ( 0) }, /* Greenwich Mean */
- { "ut", tZONE, HOUR ( 0) }, /* Universal (Coordinated) */
- { "utc", tZONE, HOUR ( 0) },
- { "wet", tZONE, HOUR ( 0) }, /* Western European */
- { "bst", tDAYZONE, HOUR ( 0) }, /* British Summer */
- { "wat", tZONE, HOUR ( 1) }, /* West Africa */
- { "at", tZONE, HOUR ( 2) }, /* Azores */
- #if 0
- /* For completeness. BST is also British Summer, and GST is
- * also Guam Standard. */
- { "bst", tZONE, HOUR ( 3) }, /* Brazil Standard */
- { "gst", tZONE, HOUR ( 3) }, /* Greenland Standard */
- #endif
- #if 0
- { "nft", tZONE, HOUR (3.5) }, /* Newfoundland */
- { "nst", tZONE, HOUR (3.5) }, /* Newfoundland Standard */
- { "ndt", tDAYZONE, HOUR (3.5) }, /* Newfoundland Daylight */
- #endif
- { "ast", tZONE, HOUR ( 4) }, /* Atlantic Standard */
- { "adt", tDAYZONE, HOUR ( 4) }, /* Atlantic Daylight */
- { "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 */
- { "yst", tZONE, HOUR ( 9) }, /* Yukon Standard */
- { "ydt", tDAYZONE, HOUR ( 9) }, /* Yukon Daylight */
- { "hst", tZONE, HOUR (10) }, /* Hawaii Standard */
- { "hdt", tDAYZONE, HOUR (10) }, /* Hawaii Daylight */
- { "cat", tZONE, HOUR (10) }, /* Central Alaska */
- { "ahst", tZONE, HOUR (10) }, /* Alaska-Hawaii Standard */
- { "nt", tZONE, HOUR (11) }, /* Nome */
- { "idlw", tZONE, HOUR (12) }, /* International Date Line West */
- { "cet", tZONE, -HOUR (1) }, /* Central European */
- { "met", tZONE, -HOUR (1) }, /* Middle European */
- { "mewt", tZONE, -HOUR (1) }, /* Middle European Winter */
- { "mest", tDAYZONE, -HOUR (1) }, /* Middle European Summer */
- { "mesz", tDAYZONE, -HOUR (1) }, /* Middle European Summer */
- { "swt", tZONE, -HOUR (1) }, /* Swedish Winter */
- { "sst", tDAYZONE, -HOUR (1) }, /* Swedish Summer */
- { "fwt", tZONE, -HOUR (1) }, /* French Winter */
- { "fst", tDAYZONE, -HOUR (1) }, /* French Summer */
- { "eet", tZONE, -HOUR (2) }, /* Eastern Europe, USSR Zone 1 */
- { "bt", tZONE, -HOUR (3) }, /* Baghdad, USSR Zone 2 */
- #if 0
- { "it", tZONE, -HOUR (3.5) },/* Iran */
- #endif
- { "zp4", tZONE, -HOUR (4) }, /* USSR Zone 3 */
- { "zp5", tZONE, -HOUR (5) }, /* USSR Zone 4 */
- #if 0
- { "ist", tZONE, -HOUR (5.5) },/* Indian Standard */
- #endif
- { "zp6", tZONE, -HOUR (6) }, /* USSR Zone 5 */
- #if 0
- /* For completeness. NST is also Newfoundland Standard, and SST is
- * also Swedish Summer. */
- { "nst", tZONE, -HOUR (6.5) },/* North Sumatra */
- { "sst", tZONE, -HOUR (7) }, /* South Sumatra, USSR Zone 6 */
- #endif /* 0 */
- { "wast", tZONE, -HOUR (7) }, /* West Australian Standard */
- { "wadt", tDAYZONE, -HOUR (7) }, /* West Australian Daylight */
- #if 0
- { "jt", tZONE, -HOUR (7.5) },/* Java (3pm in Cronusland!) */
- #endif
- { "cct", tZONE, -HOUR (8) }, /* China Coast, USSR Zone 7 */
- { "jst", tZONE, -HOUR (9) }, /* Japan Standard, USSR Zone 8 */
- #if 0
- { "cast", tZONE, -HOUR (9.5) },/* Central Australian Standard */
- { "cadt", tDAYZONE, -HOUR (9.5) },/* Central Australian Daylight */
- #endif
- { "east", tZONE, -HOUR (10) }, /* Eastern Australian Standard */
- { "eadt", tDAYZONE, -HOUR (10) }, /* Eastern Australian Daylight */
- { "gst", tZONE, -HOUR (10) }, /* Guam Standard, USSR Zone 9 */
- { "nzt", tZONE, -HOUR (12) }, /* New Zealand */
- { "nzst", tZONE, -HOUR (12) }, /* New Zealand Standard */
- { "nzdt", tDAYZONE, -HOUR (12) }, /* New Zealand Daylight */
- { "idle", tZONE, -HOUR (12) }, /* International Date Line East */
- { NULL }
- };
-
- /* Military timezone table. */
- static TABLE const MilitaryTable[] = {
- { "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) },
- { NULL }
- };
-
-
-
-
- /* ARGSUSED */
- static int
- yyerror (s)
- char *s;
- {
- return 0;
- }
-
- static int
- ToHour (Hours, Meridian)
- int Hours;
- MERIDIAN Meridian;
- {
- switch (Meridian)
- {
- case MER24:
- if (Hours < 0 || Hours > 23)
- return -1;
- return Hours;
- case MERam:
- if (Hours < 1 || Hours > 12)
- return -1;
- if (Hours == 12)
- Hours = 0;
- return Hours;
- case MERpm:
- if (Hours < 1 || Hours > 12)
- return -1;
- if (Hours == 12)
- Hours = 0;
- return Hours + 12;
- default:
- abort ();
- }
- /* NOTREACHED */
- }
-
- static int
- ToYear (Year)
- int Year;
- {
- if (Year < 0)
- Year = -Year;
-
- /* XPG4 suggests that years 00-68 map to 2000-2068, and
- years 69-99 map to 1969-1999. */
- if (Year < 69)
- Year += 2000;
- else if (Year < 100)
- Year += 1900;
-
- return Year;
- }
-
- static int
- LookupWord (buff)
- char *buff;
- {
- register char *p;
- register char *q;
- register const TABLE *tp;
- int i;
- int abbrev;
-
- /* Make it lowercase. */
- for (p = buff; *p; p++)
- if (ISUPPER (*p))
- *p = tolower (*p);
-
- if (strcmp (buff, "am") == 0 || strcmp (buff, "a.m.") == 0)
- {
- yylval.Meridian = MERam;
- return tMERIDIAN;
- }
- if (strcmp (buff, "pm") == 0 || strcmp (buff, "p.m.") == 0)
- {
- yylval.Meridian = MERpm;
- return tMERIDIAN;
- }
-
- /* See if we have an abbreviation for a month. */
- if (strlen (buff) == 3)
- abbrev = 1;
- else if (strlen (buff) == 4 && buff[3] == '.')
- {
- abbrev = 1;
- buff[3] = '\0';
- }
- else
- abbrev = 0;
-
- for (tp = MonthDayTable; tp->name; tp++)
- {
- if (abbrev)
- {
- if (strncmp (buff, tp->name, 3) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
- }
- else if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
- }
-
- for (tp = TimezoneTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
-
- if (strcmp (buff, "dst") == 0)
- return tDST;
-
- for (tp = UnitsTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
-
- /* Strip off any plural and try the units table again. */
- i = strlen (buff) - 1;
- if (buff[i] == 's')
- {
- buff[i] = '\0';
- for (tp = UnitsTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
- buff[i] = 's'; /* Put back for "this" in OtherTable. */
- }
-
- for (tp = OtherTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
-
- /* Military timezones. */
- if (buff[1] == '\0' && ISALPHA (*buff))
- {
- for (tp = MilitaryTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
- }
-
- /* Drop out any periods and try the timezone table again. */
- for (i = 0, p = q = buff; *q; q++)
- if (*q != '.')
- *p++ = *q;
- else
- i++;
- *p = '\0';
- if (i)
- for (tp = TimezoneTable; tp->name; tp++)
- if (strcmp (buff, tp->name) == 0)
- {
- yylval.Number = tp->value;
- return tp->type;
- }
-
- return tID;
- }
-
- static int
- yylex ()
- {
- register char c;
- register char *p;
- char buff[20];
- int Count;
- int sign;
-
- for (;;)
- {
- while (ISSPACE (*yyInput))
- yyInput++;
-
- if (ISDIGIT (c = *yyInput) || c == '-' || c == '+')
- {
- if (c == '-' || c == '+')
- {
- sign = c == '-' ? -1 : 1;
- if (!ISDIGIT (*++yyInput))
- /* skip the '-' sign */
- continue;
- }
- else
- sign = 0;
- for (yylval.Number = 0; ISDIGIT (c = *yyInput++);)
- yylval.Number = 10 * yylval.Number + c - '0';
- yyInput--;
- if (sign < 0)
- yylval.Number = -yylval.Number;
- return sign ? tSNUMBER : tUNUMBER;
- }
- if (ISALPHA (c))
- {
- for (p = buff; (c = *yyInput++, ISALPHA (c)) || c == '.';)
- if (p < &buff[sizeof buff - 1])
- *p++ = c;
- *p = '\0';
- yyInput--;
- return LookupWord (buff);
- }
- if (c != '(')
- return *yyInput++;
- Count = 0;
- do
- {
- c = *yyInput++;
- if (c == '\0')
- return c;
- if (c == '(')
- Count++;
- else if (c == ')')
- Count--;
- }
- while (Count > 0);
- }
- }
-
- #define TM_YEAR_ORIGIN 1900
-
- /* Yield A - B, measured in seconds. */
- static long
- difftm (a, b)
- struct tm *a, *b;
- {
- int ay = a->tm_year + (TM_YEAR_ORIGIN - 1);
- int by = b->tm_year + (TM_YEAR_ORIGIN - 1);
- long days = (
- /* difference in day of year */
- a->tm_yday - b->tm_yday
- /* + intervening leap days */
- + ((ay >> 2) - (by >> 2))
- - (ay / 100 - by / 100)
- + ((ay / 100 >> 2) - (by / 100 >> 2))
- /* + difference in years * 365 */
- + (long) (ay - by) * 365
- );
- return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
- + (a->tm_min - b->tm_min))
- + (a->tm_sec - b->tm_sec));
- }
-
- time_t
- get_date (p, now)
- const char *p;
- const time_t *now;
- {
- struct tm tm, tm0, *tmp;
- time_t Start;
-
- yyInput = p;
- Start = now ? *now : time ((time_t *) NULL);
- tmp = localtime (&Start);
- yyYear = tmp->tm_year + TM_YEAR_ORIGIN;
- yyMonth = tmp->tm_mon + 1;
- yyDay = tmp->tm_mday;
- yyHour = tmp->tm_hour;
- yyMinutes = tmp->tm_min;
- yySeconds = tmp->tm_sec;
- yyMeridian = MER24;
- yyRelSeconds = 0;
- yyRelMinutes = 0;
- yyRelHour = 0;
- yyRelDay = 0;
- yyRelMonth = 0;
- yyRelYear = 0;
- yyHaveDate = 0;
- yyHaveDay = 0;
- yyHaveRel = 0;
- yyHaveTime = 0;
- yyHaveZone = 0;
-
- if (yyparse ()
- || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1)
- return -1;
-
- tm.tm_year = ToYear (yyYear) - TM_YEAR_ORIGIN + yyRelYear;
- tm.tm_mon = yyMonth - 1 + yyRelMonth;
- tm.tm_mday = yyDay + yyRelDay;
- if (yyHaveTime || (yyHaveRel && !yyHaveDate && !yyHaveDay))
- {
- tm.tm_hour = ToHour (yyHour, yyMeridian);
- if (tm.tm_hour < 0)
- return -1;
- tm.tm_min = yyMinutes;
- tm.tm_sec = yySeconds;
- }
- else
- {
- tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
- }
- tm.tm_hour += yyRelHour;
- tm.tm_min += yyRelMinutes;
- tm.tm_sec += yyRelSeconds;
- tm.tm_isdst = -1;
- 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 (yyHaveZone)
- {
- tm = tm0;
- if (tm.tm_year <= EPOCH - TM_YEAR_ORIGIN)
- {
- tm.tm_mday++;
- yyTimezone -= 24 * 60;
- }
- else
- {
- tm.tm_mday--;
- yyTimezone += 24 * 60;
- }
- Start = mktime (&tm);
- }
-
- if (Start == (time_t) -1)
- return Start;
- }
-
- if (yyHaveDay && !yyHaveDate)
- {
- tm.tm_mday += ((yyDayNumber - tm.tm_wday + 7) % 7
- + 7 * (yyDayOrdinal - (0 < yyDayOrdinal)));
- Start = mktime (&tm);
- if (Start == (time_t) -1)
- return Start;
- }
-
- if (yyHaveZone)
- {
- long delta = yyTimezone * 60L + difftm (&tm, gmtime (&Start));
- if ((Start + delta < Start) != (delta < 0))
- return -1; /* time_t overflow */
- Start += delta;
- }
-
- return Start;
- }
-
- #if defined (TEST)
-
- /* ARGSUSED */
- int
- main (ac, av)
- int ac;
- char *av[];
- {
- char buff[MAX_BUFF_LEN + 1];
- time_t d;
-
- (void) printf ("Enter date, or blank line to exit.\n\t> ");
- (void) fflush (stdout);
-
- buff[MAX_BUFF_LEN] = 0;
- while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0])
- {
- d = get_date (buff, (time_t *) NULL);
- if (d == -1)
- (void) printf ("Bad format - couldn't convert.\n");
- else
- (void) printf ("%s", ctime (&d));
- (void) printf ("\t> ");
- (void) fflush (stdout);
- }
- exit (0);
- /* NOTREACHED */
- }
- #endif /* defined (TEST) */
-