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/* A Bison parser, made from /u/jimb/cvs/cvs-1.5/lib/getdate.y with Bison version GNU Bison version 1.22
*/
#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 "/u/jimb/cvs/cvs-1.5/lib/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;
** send any email to Rich.
**
** This grammar has 10 shift/reduce conflicts.
**
** This code is in the public domain and has no copyright.
*/
/* SUPPRESS 287 on yaccpar_sccsid *//* Unused static variable */
/* SUPPRESS 288 on yyerrlab *//* Label unused */
#ifdef HAVE_CONFIG_H
#if defined (emacs) || defined (CONFIG_BROKETS)
#include <config.h>
#else
#include "config.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>
/* 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(vms)
#include <types.h>
#include <time.h>
#else
#include <sys/types.h>
#ifdef TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif
#ifdef timezone
#undef timezone /* needed for sgi */
#endif
#if defined(HAVE_SYS_TIMEB_H)
#include <sys/timeb.h>
#else
/*
** We use the obsolete `struct timeb' as part of our interface!
** Since the system doesn't have it, we define it here;
** our callers must do likewise.
*/
struct timeb {
time_t time; /* Seconds since the epoch */
unsigned short millitm; /* Field not used */
short timezone; /* Minutes west of GMT */
short dstflag; /* Field not used */
};
#endif /* defined(HAVE_SYS_TIMEB_H) */
#endif /* defined(vms) */
#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
#if defined (STDC_HEADERS)
#include <stdlib.h>
#endif
#if defined (HAVE_ALLOCA_H)
#include <alloca.h>
#endif
extern struct tm *gmtime();
extern struct tm *localtime();
#define yyparse getdate_yyparse
#define yylex getdate_yylex
#define yyerror getdate_yyerror
#if !defined(lint) && !defined(SABER)
static char RCS[] = "$CVSid: @(#)getdate.y 1.11 94/09/21 $";
#endif /* !defined(lint) && !defined(SABER) */
static int yylex ();
static int yyerror ();
#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 175 "/u/jimb/cvs/cvs-1.5/lib/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 __cplusplus
#ifndef __STDC__
#define const
#endif
#endif
#define YYFINAL 52
#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
};
#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, 122,
123
};
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, 13, 9, 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
};
#endif
#if YYDEBUG != 0
static const short yyrline[] = { 0,
189, 190, 193, 196, 199, 202, 205, 208, 211, 217,
223, 230, 236, 246, 250, 254, 261, 265, 269, 275,
279, 284, 290, 296, 300, 305, 309, 316, 320, 323,
326, 329, 332, 335, 338, 341, 344, 347, 352, 379,
382
};
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, 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, 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, 32, 0, 38, 35, 0, 39, 14,
2, 3, 4, 6, 5, 7, 29, 8, 18, 24,
31, 36, 33, 19, 9, 30, 26, 37, 34, 0,
0, 0, 16, 28, 0, 23, 27, 22, 40, 20,
25, 41, 11, 0, 10, 0, 40, 21, 13, 12,
0, 0
};
static const short yydefgoto[] = { 1,
11, 12, 13, 14, 15, 16, 17, 18, 45
};
static const short yypact[] = {-32768,
0, -1,-32768,-32768, 4,-32768,-32768, 25, 11, -8,
-32768,-32768,-32768,-32768,-32768,-32768, 21,-32768,-32768, 9,
-32768,-32768,-32768,-32768,-32768,-32768, -10,-32768,-32768, 16,
19, 24,-32768,-32768, 26,-32768,-32768,-32768, 18, 13,
-32768,-32768,-32768, 27,-32768, 28, -6,-32768,-32768,-32768,
38,-32768
};
static const short yypgoto[] = {-32768,
-32768,-32768,-32768,-32768,-32768,-32768,-32768,-32768, -5
};
#define YYLAST 42
static const short yytable[] = { 51,
42, 36, 37, 2, 3, 49, 33, 4, 5, 6,
7, 8, 9, 10, 24, 19, 20, 25, 26, 27,
28, 29, 30, 34, 42, 35, 31, 38, 32, 43,
46, 39, 21, 44, 22, 23, 40, 52, 41, 47,
48, 50
};
static const short yycheck[] = { 0,
7, 12, 13, 4, 5, 12, 15, 8, 9, 10,
11, 12, 13, 14, 4, 17, 13, 7, 8, 9,
10, 11, 12, 3, 7, 17, 16, 12, 18, 12,
18, 13, 8, 16, 10, 11, 13, 0, 13, 13,
13, 47
};
/* -*-C-*- Note some compilers choke on comments on `#line' lines. */
#line 3 "/usr/local/lib/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__) || defined (__sparc) || defined (__sgi)
#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
#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
/* Prevent warning if -Wstrict-prototypes. */
#ifdef __GNUC__
int yyparse (void);
#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 184 "/usr/local/lib/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 = 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_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
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 193 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHaveTime++;
;
break;}
case 4:
#line 196 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHaveZone++;
;
break;}
case 5:
#line 199 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHaveDate++;
;
break;}
case 6:
#line 202 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHaveDay++;
;
break;}
case 7:
#line 205 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHaveRel++;
;
break;}
case 9:
#line 211 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHour = yyvsp[-1].Number;
yyMinutes = 0;
yySeconds = 0;
yyMeridian = yyvsp[0].Meridian;
;
break;}
case 10:
#line 217 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHour = yyvsp[-3].Number;
yyMinutes = yyvsp[-1].Number;
yySeconds = 0;
yyMeridian = yyvsp[0].Meridian;
;
break;}
case 11:
#line 223 "/u/jimb/cvs/cvs-1.5/lib/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 230 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyHour = yyvsp[-5].Number;
yyMinutes = yyvsp[-3].Number;
yySeconds = yyvsp[-1].Number;
yyMeridian = yyvsp[0].Meridian;
;
break;}
case 13:
#line 236 "/u/jimb/cvs/cvs-1.5/lib/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 246 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyTimezone = yyvsp[0].Number;
yyDSTmode = DSToff;
;
break;}
case 15:
#line 250 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyTimezone = yyvsp[0].Number;
yyDSTmode = DSTon;
;
break;}
case 16:
#line 255 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyTimezone = yyvsp[-1].Number;
yyDSTmode = DSTon;
;
break;}
case 17:
#line 261 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyDayOrdinal = 1;
yyDayNumber = yyvsp[0].Number;
;
break;}
case 18:
#line 265 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyDayOrdinal = 1;
yyDayNumber = yyvsp[-1].Number;
;
break;}
case 19:
#line 269 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyDayOrdinal = yyvsp[-1].Number;
yyDayNumber = yyvsp[0].Number;
;
break;}
case 20:
#line 275 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[-2].Number;
yyDay = yyvsp[0].Number;
;
break;}
case 21:
#line 279 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[-4].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
;
break;}
case 22:
#line 284 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
/* ISO 8601 format. yyyy-mm-dd. */
yyYear = yyvsp[-2].Number;
yyMonth = -yyvsp[-1].Number;
yyDay = -yyvsp[0].Number;
;
break;}
case 23:
#line 290 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
/* e.g. 17-JUN-1992. */
yyDay = yyvsp[-2].Number;
yyMonth = yyvsp[-1].Number;
yyYear = -yyvsp[0].Number;
;
break;}
case 24:
#line 296 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[-1].Number;
yyDay = yyvsp[0].Number;
;
break;}
case 25:
#line 300 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[-3].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
;
break;}
case 26:
#line 305 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[0].Number;
yyDay = yyvsp[-1].Number;
;
break;}
case 27:
#line 309 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyMonth = yyvsp[-1].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
;
break;}
case 28:
#line 316 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds = -yyRelSeconds;
yyRelMonth = -yyRelMonth;
;
break;}
case 30:
#line 323 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
;
break;}
case 31:
#line 326 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
;
break;}
case 32:
#line 329 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds += yyvsp[0].Number * 60L;
;
break;}
case 33:
#line 332 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds += yyvsp[-1].Number;
;
break;}
case 34:
#line 335 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds += yyvsp[-1].Number;
;
break;}
case 35:
#line 338 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelSeconds++;
;
break;}
case 36:
#line 341 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
;
break;}
case 37:
#line 344 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
;
break;}
case 38:
#line 347 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyRelMonth += yyvsp[0].Number;
;
break;}
case 39:
#line 352 "/u/jimb/cvs/cvs-1.5/lib/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 40:
#line 379 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyval.Meridian = MER24;
;
break;}
case 41:
#line 382 "/u/jimb/cvs/cvs-1.5/lib/getdate.y"
{
yyval.Meridian = yyvsp[0].Meridian;
;
break;}
}
/* the action file gets copied in in place of this dollarsign */
#line 465 "/usr/local/lib/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 387 "/u/jimb/cvs/cvs-1.5/lib/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;
default:
abort ();
}
/* 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);
}
}
#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);
int 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)
char *p;
struct timeb *now;
{
struct tm *tm, gmt;
struct timeb ftz;
time_t Start;
time_t tod;
yyInput = p;
if (now == NULL) {
now = &ftz;
(void)time(&ftz.time);
if (! (tm = gmtime (&ftz.time)))
return -1;
gmt = *tm; /* Make a copy, in case localtime modifies *tm. */
if (! (tm = localtime (&ftz.time)))
return -1;
ftz.timezone = difftm (&gmt, tm) / 60;
if(tm->tm_isdst)
ftz.timezone += 60;
}
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 */
int
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) */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.