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-
- /* A Bison parser, made from ./getdate.y */
-
- #define YYBISON 1 /* Identify Bison output. */
-
- #define tAGO 258
- #define tDAY 259
- #define tDAYZONE 260
- #define tID 261
- #define tMERIDIAN 262
- #define tMINUTE_UNIT 263
- #define tMONTH 264
- #define tMONTH_UNIT 265
- #define tSEC_UNIT 266
- #define tSNUMBER 267
- #define tUNUMBER 268
- #define tZONE 269
- #define tDST 270
-
- #line 1 "./getdate.y"
-
- /* $Revision: 2.1 $
- **
- ** 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;
- ** send any email to Rich.
- **
- ** This grammar has eight shift/reduce conflicts.
- **
- ** This code is in the public domain and has no copyright.
- */
- /* SUPPRESS 287 on yaccpar_sccsid *//* Unusd static variable */
- /* SUPPRESS 288 on yyerrlab *//* Label unused */
-
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #ifdef __GNUC__
- #define alloca __builtin_alloca
- #else
- #ifdef HAVE_ALLOCA_H
- #include <alloca.h>
- #else
- #ifdef _AIX /* for Bison */
- #pragma alloca
- #else
- char *alloca ();
- #endif
- #endif
- #endif
-
- #include <stdio.h>
- #include <ctype.h>
-
- /* The code at the top of get_date which figures out the offset of the
- current time zone checks various CPP symbols to see if special
- tricks are need, but defaults to using the gettimeofday system call.
- Include <sys/time.h> if that will be used. */
-
- #if !defined (USG) && !defined (sgi) && !defined (__386BSD__)
- #include <sys/time.h>
- #endif
-
- #if defined(vms)
-
- #include <types.h>
- #include <time.h>
-
- #else
-
- #include <sys/types.h>
-
- #if defined(USG) || !defined(HAVE_FTIME)
- /*
- ** If you need to do a tzset() call to set the
- ** timezone, and don't have ftime().
- */
- struct timeb {
- time_t time; /* Seconds since the epoch */
- unsigned short millitm; /* Field not used */
- short timezone;
- short dstflag; /* Field not used */
- };
-
- #else
-
- #include <sys/timeb.h>
-
- #endif /* defined(USG) && !defined(HAVE_FTIME) */
-
- #if defined(BSD4_2) || defined(BSD4_1C) || (defined (hp9000) && !defined (hpux))
- #include <sys/time.h>
- #else
- #if defined(_AIX)
- #include <sys/time.h>
- #endif
- #include <time.h>
- #endif /* defined(BSD4_2) */
-
- #endif /* defined(vms) */
-
- #if defined (STDC_HEADERS) || defined (USG)
- #include <string.h>
- #endif
-
- #if sgi
- #undef timezone
- #endif
-
- extern struct tm *localtime();
-
- #define yyparse getdate_yyparse
- #define yylex getdate_yylex
- #define yyerror getdate_yyerror
-
- #if !defined(lint) && !defined(SABER)
- static char RCS[] =
- "$Header: str2date.y,v 2.1 90/09/06 08:15:06 cronan Exp $";
- #endif /* !defined(lint) && !defined(SABER) */
-
-
- #define EPOCH 1970
- #define HOUR(x) ((time_t)(x) * 60)
- #define SECSPERDAY (24L * 60L * 60L)
-
-
- /*
- ** An entry in the lexical lookup table.
- */
- typedef struct _TABLE {
- char *name;
- int type;
- time_t value;
- } TABLE;
-
-
- /*
- ** Daylight-savings mode: on, off, or not yet known.
- */
- typedef enum _DSTMODE {
- DSTon, DSToff, DSTmaybe
- } DSTMODE;
-
- /*
- ** 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 char *yyInput;
- static DSTMODE yyDSTmode;
- static time_t yyDayOrdinal;
- static time_t yyDayNumber;
- static int yyHaveDate;
- static int yyHaveDay;
- static int yyHaveRel;
- static int yyHaveTime;
- static int yyHaveZone;
- static time_t yyTimezone;
- static time_t yyDay;
- static time_t yyHour;
- static time_t yyMinutes;
- static time_t yyMonth;
- static time_t yySeconds;
- static time_t yyYear;
- static MERIDIAN yyMeridian;
- static time_t yyRelMonth;
- static time_t yyRelSeconds;
-
-
- #line 163 "./getdate.y"
- typedef union {
- time_t Number;
- enum _MERIDIAN Meridian;
- } YYSTYPE;
-
- #ifndef YYLTYPE
- typedef
- struct yyltype
- {
- int timestamp;
- int first_line;
- int first_column;
- int last_line;
- int last_column;
- char *text;
- }
- yyltype;
-
- #define YYLTYPE yyltype
- #endif
-
- #include <stdio.h>
-
- #ifndef __STDC__
- #define const
- #endif
-
-
-
- #define YYFINAL 51
- #define YYFLAG -32768
- #define YYNTBASE 19
-
- #define YYTRANSLATE(x) ((unsigned)(x) <= 270 ? yytranslate[x] : 29)
-
- 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, 17, 2, 2, 18, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 16, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 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
- };
-
- 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, 75, 80, 83, 87, 90, 92, 95,
- 98, 100, 103, 106, 108, 111, 114, 116, 118, 119
- };
-
- static const short yyrhs[] = { -1,
- 19, 20, 0, 21, 0, 22, 0, 24, 0, 23,
- 0, 25, 0, 27, 0, 13, 7, 0, 13, 16,
- 13, 28, 0, 13, 16, 13, 12, 0, 13, 16,
- 13, 16, 13, 28, 0, 13, 16, 13, 16, 13,
- 12, 0, 14, 0, 5, 0, 14, 15, 0, 4,
- 0, 4, 17, 0, 13, 4, 0, 13, 18, 13,
- 0, 13, 18, 13, 18, 13, 0, 13, 12, 12,
- 0, 9, 13, 0, 9, 13, 17, 13, 0, 13,
- 9, 0, 13, 9, 13, 0, 26, 3, 0, 26,
- 0, 13, 8, 0, 12, 8, 0, 8, 0, 12,
- 11, 0, 13, 11, 0, 11, 0, 12, 10, 0,
- 13, 10, 0, 10, 0, 13, 0, 0, 7, 0
- };
-
- #if YYDEBUG != 0
- static const short yyrline[] = { 0,
- 177, 178, 181, 184, 187, 190, 193, 196, 199, 205,
- 211, 218, 224, 234, 238, 242, 249, 253, 257, 263,
- 267, 272, 278, 282, 287, 291, 298, 302, 305, 308,
- 311, 314, 317, 320, 323, 326, 329, 334, 362, 365
- };
-
- static const char * const yytname[] = { "$","error","$illegal.","tAGO","tDAY",
- "tDAYZONE","tID","tMERIDIAN","tMINUTE_UNIT","tMONTH","tMONTH_UNIT","tSEC_UNIT",
- "tSNUMBER","tUNUMBER","tZONE","tDST","':'","','","'/'","spec","item","time",
- "zone","day","date","rel","relunit","number","o_merid",""
- };
- #endif
-
- static const short yyr1[] = { 0,
- 19, 19, 20, 20, 20, 20, 20, 20, 21, 21,
- 21, 21, 21, 22, 22, 22, 23, 23, 23, 24,
- 24, 24, 24, 24, 24, 24, 25, 25, 26, 26,
- 26, 26, 26, 26, 26, 26, 26, 27, 28, 28
- };
-
- 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, 2, 4, 2, 3, 2, 1, 2, 2,
- 1, 2, 2, 1, 2, 2, 1, 1, 0, 1
- };
-
- static const short yydefact[] = { 1,
- 0, 17, 15, 31, 0, 37, 34, 0, 38, 14,
- 2, 3, 4, 6, 5, 7, 28, 8, 18, 23,
- 30, 35, 32, 19, 9, 29, 25, 36, 33, 0,
- 0, 0, 16, 27, 0, 26, 22, 39, 20, 24,
- 40, 11, 0, 10, 0, 39, 21, 13, 12, 0,
- 0
- };
-
- static const short yydefgoto[] = { 1,
- 11, 12, 13, 14, 15, 16, 17, 18, 44
- };
-
- static const short yypact[] = {-32768,
- 0, -15,-32768,-32768, -10,-32768,-32768, 25, 11, -8,
- -32768,-32768,-32768,-32768,-32768,-32768, 13,-32768,-32768, 7,
- -32768,-32768,-32768,-32768,-32768,-32768, 4,-32768,-32768, 14,
- 15, 19,-32768,-32768, 24,-32768,-32768, 18, 20,-32768,
- -32768,-32768, 26,-32768, 27, -6,-32768,-32768,-32768, 31,
- -32768
- };
-
- static const short yypgoto[] = {-32768,
- -32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, -5
- };
-
-
- #define YYLAST 41
-
-
- static const short yytable[] = { 50,
- 41, 19, 20, 2, 3, 48, 33, 4, 5, 6,
- 7, 8, 9, 10, 24, 34, 36, 25, 26, 27,
- 28, 29, 30, 35, 41, 37, 31, 38, 32, 42,
- 51, 39, 21, 43, 22, 23, 40, 45, 46, 47,
- 49
- };
-
- static const short yycheck[] = { 0,
- 7, 17, 13, 4, 5, 12, 15, 8, 9, 10,
- 11, 12, 13, 14, 4, 3, 13, 7, 8, 9,
- 10, 11, 12, 17, 7, 12, 16, 13, 18, 12,
- 0, 13, 8, 16, 10, 11, 13, 18, 13, 13,
- 46
- };
- /* -*-C-*- Note some compilers choke on comments on `#line' lines. */
- #line 3 "bison.simple"
-
- /* Skeleton output parser for bison,
- Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
-
- 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 1, 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. */
-
-
- #ifndef alloca
- #ifdef __GNUC__
- #define alloca __builtin_alloca
- #else /* not GNU C. */
- #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__)
- #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
- #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
- #define YYLEX yylex(&yylval, &yylloc)
- #else
- #define YYLEX yylex(&yylval)
- #endif
- #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
-
- #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */
- #define __yy_bcopy(FROM,TO,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_bcopy (from, to, count)
- char *from;
- char *to;
- 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_bcopy (char *from, char *to, int count)
- {
- register char *f = from;
- register char *t = to;
- register int i = count;
-
- while (i-- > 0)
- *t++ = *f++;
- }
-
- #endif
- #endif
-
- #line 169 "bison.simple"
- int
- yyparse()
- {
- 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; /* 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. */
-
- 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. */
- yyoverflow("parser stack overflow",
- &yyss1, size * sizeof (*yyssp),
- &yyvs1, size * sizeof (*yyvsp),
- #ifdef YYLSP_NEEDED
- &yyls1, size * sizeof (*yylsp),
- #endif
- &yystacksize);
-
- 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_bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp));
- yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp));
- __yy_bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp));
- #ifdef YYLSP_NEEDED
- yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp));
- __yy_bcopy ((char *)yyls1, (char *)yyls, 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
-
- 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];
- 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 symboles 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 181 "./getdate.y"
- {
- yyHaveTime++;
- ;
- break;}
- case 4:
- #line 184 "./getdate.y"
- {
- yyHaveZone++;
- ;
- break;}
- case 5:
- #line 187 "./getdate.y"
- {
- yyHaveDate++;
- ;
- break;}
- case 6:
- #line 190 "./getdate.y"
- {
- yyHaveDay++;
- ;
- break;}
- case 7:
- #line 193 "./getdate.y"
- {
- yyHaveRel++;
- ;
- break;}
- case 9:
- #line 199 "./getdate.y"
- {
- yyHour = yyvsp[-1].Number;
- yyMinutes = 0;
- yySeconds = 0;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 10:
- #line 205 "./getdate.y"
- {
- yyHour = yyvsp[-3].Number;
- yyMinutes = yyvsp[-1].Number;
- yySeconds = 0;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 11:
- #line 211 "./getdate.y"
- {
- yyHour = yyvsp[-3].Number;
- yyMinutes = yyvsp[-1].Number;
- yyMeridian = MER24;
- yyDSTmode = DSToff;
- yyTimezone = - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60);
- ;
- break;}
- case 12:
- #line 218 "./getdate.y"
- {
- yyHour = yyvsp[-5].Number;
- yyMinutes = yyvsp[-3].Number;
- yySeconds = yyvsp[-1].Number;
- yyMeridian = yyvsp[0].Meridian;
- ;
- break;}
- case 13:
- #line 224 "./getdate.y"
- {
- yyHour = yyvsp[-5].Number;
- yyMinutes = yyvsp[-3].Number;
- yySeconds = yyvsp[-1].Number;
- yyMeridian = MER24;
- yyDSTmode = DSToff;
- yyTimezone = - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60);
- ;
- break;}
- case 14:
- #line 234 "./getdate.y"
- {
- yyTimezone = yyvsp[0].Number;
- yyDSTmode = DSToff;
- ;
- break;}
- case 15:
- #line 238 "./getdate.y"
- {
- yyTimezone = yyvsp[0].Number;
- yyDSTmode = DSTon;
- ;
- break;}
- case 16:
- #line 243 "./getdate.y"
- {
- yyTimezone = yyvsp[-1].Number;
- yyDSTmode = DSTon;
- ;
- break;}
- case 17:
- #line 249 "./getdate.y"
- {
- yyDayOrdinal = 1;
- yyDayNumber = yyvsp[0].Number;
- ;
- break;}
- case 18:
- #line 253 "./getdate.y"
- {
- yyDayOrdinal = 1;
- yyDayNumber = yyvsp[-1].Number;
- ;
- break;}
- case 19:
- #line 257 "./getdate.y"
- {
- yyDayOrdinal = yyvsp[-1].Number;
- yyDayNumber = yyvsp[0].Number;
- ;
- break;}
- case 20:
- #line 263 "./getdate.y"
- {
- yyMonth = yyvsp[-2].Number;
- yyDay = yyvsp[0].Number;
- ;
- break;}
- case 21:
- #line 267 "./getdate.y"
- {
- yyMonth = yyvsp[-4].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- ;
- break;}
- case 22:
- #line 272 "./getdate.y"
- {
- /* ISO 8601 format. yyyy-mm-dd. */
- yyYear = yyvsp[-2].Number;
- yyMonth = -yyvsp[-1].Number;
- yyDay = -yyvsp[0].Number;
- ;
- break;}
- case 23:
- #line 278 "./getdate.y"
- {
- yyMonth = yyvsp[-1].Number;
- yyDay = yyvsp[0].Number;
- ;
- break;}
- case 24:
- #line 282 "./getdate.y"
- {
- yyMonth = yyvsp[-3].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- ;
- break;}
- case 25:
- #line 287 "./getdate.y"
- {
- yyMonth = yyvsp[0].Number;
- yyDay = yyvsp[-1].Number;
- ;
- break;}
- case 26:
- #line 291 "./getdate.y"
- {
- yyMonth = yyvsp[-1].Number;
- yyDay = yyvsp[-2].Number;
- yyYear = yyvsp[0].Number;
- ;
- break;}
- case 27:
- #line 298 "./getdate.y"
- {
- yyRelSeconds = -yyRelSeconds;
- yyRelMonth = -yyRelMonth;
- ;
- break;}
- case 29:
- #line 305 "./getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
- ;
- break;}
- case 30:
- #line 308 "./getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
- ;
- break;}
- case 31:
- #line 311 "./getdate.y"
- {
- yyRelSeconds += yyvsp[0].Number * 60L;
- ;
- break;}
- case 32:
- #line 314 "./getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number;
- ;
- break;}
- case 33:
- #line 317 "./getdate.y"
- {
- yyRelSeconds += yyvsp[-1].Number;
- ;
- break;}
- case 34:
- #line 320 "./getdate.y"
- {
- yyRelSeconds++;
- ;
- break;}
- case 35:
- #line 323 "./getdate.y"
- {
- yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 36:
- #line 326 "./getdate.y"
- {
- yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
- ;
- break;}
- case 37:
- #line 329 "./getdate.y"
- {
- yyRelMonth += yyvsp[0].Number;
- ;
- break;}
- case 38:
- #line 334 "./getdate.y"
- {
- if (yyHaveTime && yyHaveDate && !yyHaveRel)
- yyYear = yyvsp[0].Number;
- else {
- if(yyvsp[0].Number>10000) {
- time_t date_part;
-
- date_part= yyvsp[0].Number/10000;
- yyHaveDate++;
- yyDay= (date_part)%100;
- yyMonth= (date_part/100)%100;
- yyYear = date_part/10000;
- }
- 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 39:
- #line 362 "./getdate.y"
- {
- yyval.Meridian = MER24;
- ;
- break;}
- case 40:
- #line 365 "./getdate.y"
- {
- yyval.Meridian = yyvsp[0].Meridian;
- ;
- break;}
- }
- /* the action file gets copied in in place of this dollarsign */
- #line 440 "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;
- for (x = 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 = 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");
- }
-
- 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 370 "./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", tMONTH_UNIT, 12 },
- { "month", tMONTH_UNIT, 1 },
- { "fortnight", tMINUTE_UNIT, 14 * 24 * 60 },
- { "week", tMINUTE_UNIT, 7 * 24 * 60 },
- { "day", tMINUTE_UNIT, 1 * 24 * 60 },
- { "hour", tMINUTE_UNIT, 60 },
- { "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. */
- /* Some of these are commented out because a time_t can't store a float. */
- 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 */
- { "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 Stanard, 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 time_t
- ToSeconds(Hours, Minutes, Seconds, Meridian)
- time_t Hours;
- time_t Minutes;
- time_t Seconds;
- MERIDIAN Meridian;
- {
- if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59)
- return -1;
- switch (Meridian) {
- case MER24:
- if (Hours < 0 || Hours > 23)
- return -1;
- return (Hours * 60L + Minutes) * 60L + Seconds;
- case MERam:
- if (Hours < 1 || Hours > 12)
- return -1;
- return (Hours * 60L + Minutes) * 60L + Seconds;
- case MERpm:
- if (Hours < 1 || Hours > 12)
- return -1;
- return ((Hours + 12) * 60L + Minutes) * 60L + Seconds;
- }
- /* NOTREACHED */
- }
-
-
- static time_t
- Convert(Month, Day, Year, Hours, Minutes, Seconds, Meridian, DSTmode)
- time_t Month;
- time_t Day;
- time_t Year;
- time_t Hours;
- time_t Minutes;
- time_t Seconds;
- MERIDIAN Meridian;
- DSTMODE DSTmode;
- {
- static int DaysInMonth[12] = {
- 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
- };
- time_t tod;
- time_t Julian;
- int i;
-
- if (Year < 0)
- Year = -Year;
- if (Year < 100)
- Year += 1900;
- DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
- ? 29 : 28;
- if (Year < EPOCH || Year > 1999
- || Month < 1 || Month > 12
- /* Lint fluff: "conversion from long may lose accuracy" */
- || Day < 1 || Day > DaysInMonth[(int)--Month])
- return -1;
-
- for (Julian = Day - 1, i = 0; i < Month; i++)
- Julian += DaysInMonth[i];
- for (i = EPOCH; i < Year; i++)
- Julian += 365 + (i % 4 == 0);
- Julian *= SECSPERDAY;
- Julian += yyTimezone * 60L;
- if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
- return -1;
- Julian += tod;
- if (DSTmode == DSTon
- || (DSTmode == DSTmaybe && localtime(&Julian)->tm_isdst))
- Julian -= 60 * 60;
- return Julian;
- }
-
-
- static time_t
- DSTcorrect(Start, Future)
- time_t Start;
- time_t Future;
- {
- time_t StartDay;
- time_t FutureDay;
-
- StartDay = (localtime(&Start)->tm_hour + 1) % 24;
- FutureDay = (localtime(&Future)->tm_hour + 1) % 24;
- return (Future - Start) + (StartDay - FutureDay) * 60L * 60L;
- }
-
-
- static time_t
- RelativeDate(Start, DayOrdinal, DayNumber)
- time_t Start;
- time_t DayOrdinal;
- time_t DayNumber;
- {
- struct tm *tm;
- time_t now;
-
- now = Start;
- tm = localtime(&now);
- now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7);
- now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1);
- return DSTcorrect(Start, now);
- }
-
-
- static time_t
- RelativeMonth(Start, RelMonth)
- time_t Start;
- time_t RelMonth;
- {
- struct tm *tm;
- time_t Month;
- time_t Year;
-
- if (RelMonth == 0)
- return 0;
- tm = localtime(&Start);
- Month = 12 * tm->tm_year + tm->tm_mon + RelMonth;
- Year = Month / 12;
- Month = Month % 12 + 1;
- return DSTcorrect(Start,
- Convert(Month, (time_t)tm->tm_mday, Year,
- (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec,
- MER24, DSTmaybe));
- }
-
-
- 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; isalpha(c = *yyInput++) || 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);
- }
- }
-
-
- time_t
- get_date(p, now)
- char *p;
- struct timeb *now;
- {
- struct tm *tm;
- struct timeb ftz;
- time_t Start;
- time_t tod;
-
- yyInput = p;
- if (now == NULL) {
- now = &ftz;
- #if !defined(HAVE_FTIME)
- (void)time(&ftz.time);
- /* Set the timezone global. */
- tzset();
- {
- #if sgi
- ftz.timezone = (int) _timezone / 60;
- #else /* not sgi */
- #ifdef __386BSD__
- ftz.timezone = 0;
- #else /* neither sgi nor 386BSD */
- #if defined (USG)
- extern time_t timezone;
-
- ftz.timezone = (int) timezone / 60;
- #else /* neither sgi nor 386BSD nor USG */
- struct timeval tv;
- struct timezone tz;
-
- gettimeofday (&tv, &tz);
- ftz.timezone = (int) tz.tz_minuteswest;
- #endif /* neither sgi nor 386BSD nor USG */
- #endif /* neither sgi nor 386BSD */
- #endif /* not sgi */
- }
- #else /* HAVE_FTIME */
- (void)ftime(&ftz);
- #endif /* HAVE_FTIME */
- }
-
- tm = localtime(&now->time);
- yyYear = tm->tm_year;
- yyMonth = tm->tm_mon + 1;
- yyDay = tm->tm_mday;
- yyTimezone = now->timezone;
- yyDSTmode = DSTmaybe;
- yyHour = 0;
- yyMinutes = 0;
- yySeconds = 0;
- yyMeridian = MER24;
- yyRelSeconds = 0;
- yyRelMonth = 0;
- yyHaveDate = 0;
- yyHaveDay = 0;
- yyHaveRel = 0;
- yyHaveTime = 0;
- yyHaveZone = 0;
-
- if (yyparse()
- || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1)
- return -1;
-
- if (yyHaveDate || yyHaveTime || yyHaveDay) {
- Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds,
- yyMeridian, yyDSTmode);
- if (Start < 0)
- return -1;
- }
- else {
- Start = now->time;
- if (!yyHaveRel)
- Start -= ((tm->tm_hour * 60L + tm->tm_min) * 60L) + tm->tm_sec;
- }
-
- Start += yyRelSeconds;
- Start += RelativeMonth(Start, yyRelMonth);
-
- if (yyHaveDay && !yyHaveDate) {
- tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber);
- Start += tod;
- }
-
- /* Have to do *something* with a legitimate -1 so it's distinguishable
- * from the error return value. (Alternately could set errno on error.) */
- return Start == -1 ? 0 : Start;
- }
-
-
- #if defined(TEST)
-
- /* ARGSUSED */
- main(ac, av)
- int ac;
- char *av[];
- {
- char buff[128];
- time_t d;
-
- (void)printf("Enter date, or blank line to exit.\n\t> ");
- (void)fflush(stdout);
- while (gets(buff) && buff[0]) {
- d = get_date(buff, (struct timeb *)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) */
-