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%{
/*
** 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 code is in the public domain and has no copyright.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
# ifdef HAVE_ALLOCA_H
# include <alloca.h>
# endif
#endif
/* Since the code of getdate.y is not included in the Emacs executable
itself, there is no need to #define static in this file. Even if
the code were included in the Emacs executable, it probably
wouldn't do any harm to #undef it here; this will only cause
problems if we try to write to a static variable, which I don't
think this code needs to do. */
#ifdef emacs
# undef static
#endif
#ifdef __APPLE__
#include <sys/types.h>
#include <sys/malloc.h>
#else
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#include <string.h>
#include <stdio.h>
#include <ctype.h>
#if HAVE_STDLIB_H
# include <stdlib.h> /* for `free'; used by Bison 1.27 */
#endif
#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)
#if defined (STDC_HEADERS) || defined (USG)
# include <string.h>
#endif
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
# define __attribute__(x)
#endif
#ifndef ATTRIBUTE_UNUSED
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#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
/* 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;
%}
/* This grammar has 13 shift/reduce conflicts. */
%expect 13
%union {
int Number;
enum _MERIDIAN Meridian;
}
%token tAGO tDAY tDAY_UNIT tDAYZONE tDST tHOUR_UNIT tID
%token tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
%token tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
%type <Number> tDAY tDAY_UNIT tDAYZONE tHOUR_UNIT tMINUTE_UNIT
%type <Number> tMONTH tMONTH_UNIT
%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
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