1993-06-18 06:22:21 +02:00
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%{
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1994-11-04 03:14:13 +01:00
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/* $Revision: 1.1.1.1 $
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1993-06-18 06:22:21 +02:00
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**
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** Originally written by Steven M. Bellovin <smb@research.att.com> while
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** at the University of North Carolina at Chapel Hill. Later tweaked by
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** a couple of people on Usenet. Completely overhauled by Rich $alz
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** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990;
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** send any email to Rich.
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**
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** This grammar has eight shift/reduce conflicts.
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**
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** This code is in the public domain and has no copyright.
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*/
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/* SUPPRESS 287 on yaccpar_sccsid *//* Unusd static variable */
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/* SUPPRESS 288 on yyerrlab *//* Label unused */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef __GNUC__
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#define alloca __builtin_alloca
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#else
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#ifdef HAVE_ALLOCA_H
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#include <alloca.h>
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#else
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#ifdef _AIX /* for Bison */
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#pragma alloca
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#else
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char *alloca ();
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#endif
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#endif
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#endif
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#include <stdio.h>
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#include <ctype.h>
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/* The code at the top of get_date which figures out the offset of the
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current time zone checks various CPP symbols to see if special
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tricks are need, but defaults to using the gettimeofday system call.
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Include <sys/time.h> if that will be used. */
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1994-11-04 03:14:13 +01:00
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#if !defined (USG) && !defined (sgi) && !defined (__FreeBSD__)
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1993-06-18 06:22:21 +02:00
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#include <sys/time.h>
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#endif
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#if defined(vms)
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#include <types.h>
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#include <time.h>
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#else
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#include <sys/types.h>
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#if defined(USG) || !defined(HAVE_FTIME)
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/*
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** If you need to do a tzset() call to set the
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** timezone, and don't have ftime().
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*/
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struct timeb {
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time_t time; /* Seconds since the epoch */
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unsigned short millitm; /* Field not used */
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short timezone;
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short dstflag; /* Field not used */
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};
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#else
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#include <sys/timeb.h>
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#endif /* defined(USG) && !defined(HAVE_FTIME) */
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#if defined(BSD4_2) || defined(BSD4_1C) || (defined (hp9000) && !defined (hpux))
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#include <sys/time.h>
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#else
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#if defined(_AIX)
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#include <sys/time.h>
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#endif
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#include <time.h>
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#endif /* defined(BSD4_2) */
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#endif /* defined(vms) */
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#if defined (STDC_HEADERS) || defined (USG)
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#include <string.h>
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#endif
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#if sgi
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#undef timezone
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#endif
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extern struct tm *localtime();
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#define yyparse getdate_yyparse
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#define yylex getdate_yylex
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#define yyerror getdate_yyerror
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#if !defined(lint) && !defined(SABER)
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static char RCS[] =
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1994-11-04 03:14:13 +01:00
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"$Header: /home/ncvs/src/gnu/usr.bin/tar/getdate.y,v 1.1.1.1 1993/06/18 04:22:21 jkh Exp $";
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1993-06-18 06:22:21 +02:00
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#endif /* !defined(lint) && !defined(SABER) */
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#define EPOCH 1970
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#define HOUR(x) ((time_t)(x) * 60)
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#define SECSPERDAY (24L * 60L * 60L)
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/*
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** An entry in the lexical lookup table.
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*/
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typedef struct _TABLE {
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char *name;
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int type;
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time_t value;
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} TABLE;
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/*
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** Daylight-savings mode: on, off, or not yet known.
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*/
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typedef enum _DSTMODE {
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DSTon, DSToff, DSTmaybe
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} DSTMODE;
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/*
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** Meridian: am, pm, or 24-hour style.
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*/
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typedef enum _MERIDIAN {
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MERam, MERpm, MER24
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} MERIDIAN;
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/*
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** Global variables. We could get rid of most of these by using a good
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** union as the yacc stack. (This routine was originally written before
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** yacc had the %union construct.) Maybe someday; right now we only use
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** the %union very rarely.
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*/
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static char *yyInput;
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static DSTMODE yyDSTmode;
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static time_t yyDayOrdinal;
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static time_t yyDayNumber;
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static int yyHaveDate;
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static int yyHaveDay;
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static int yyHaveRel;
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static int yyHaveTime;
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static int yyHaveZone;
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static time_t yyTimezone;
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static time_t yyDay;
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static time_t yyHour;
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static time_t yyMinutes;
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static time_t yyMonth;
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static time_t yySeconds;
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static time_t yyYear;
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static MERIDIAN yyMeridian;
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static time_t yyRelMonth;
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static time_t yyRelSeconds;
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%}
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%union {
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time_t Number;
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enum _MERIDIAN Meridian;
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}
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%token tAGO tDAY tDAYZONE tID tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
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%token tSEC_UNIT tSNUMBER tUNUMBER tZONE tDST
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%type <Number> tDAY tDAYZONE tMINUTE_UNIT tMONTH tMONTH_UNIT
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%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tZONE
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%type <Meridian> tMERIDIAN o_merid
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%%
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spec : /* NULL */
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| spec item
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;
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item : time {
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yyHaveTime++;
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}
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| zone {
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yyHaveZone++;
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}
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| date {
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yyHaveDate++;
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}
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| day {
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yyHaveDay++;
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}
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| rel {
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yyHaveRel++;
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}
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| number
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;
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time : tUNUMBER tMERIDIAN {
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yyHour = $1;
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yyMinutes = 0;
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yySeconds = 0;
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yyMeridian = $2;
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}
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| tUNUMBER ':' tUNUMBER o_merid {
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yyHour = $1;
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yyMinutes = $3;
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yySeconds = 0;
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yyMeridian = $4;
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}
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| tUNUMBER ':' tUNUMBER tSNUMBER {
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yyHour = $1;
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yyMinutes = $3;
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yyMeridian = MER24;
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yyDSTmode = DSToff;
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yyTimezone = - ($4 % 100 + ($4 / 100) * 60);
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}
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| tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid {
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yyHour = $1;
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yyMinutes = $3;
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yySeconds = $5;
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yyMeridian = $6;
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}
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| tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER {
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yyHour = $1;
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yyMinutes = $3;
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yySeconds = $5;
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yyMeridian = MER24;
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yyDSTmode = DSToff;
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yyTimezone = - ($6 % 100 + ($6 / 100) * 60);
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}
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;
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zone : tZONE {
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yyTimezone = $1;
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yyDSTmode = DSToff;
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}
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| tDAYZONE {
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yyTimezone = $1;
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yyDSTmode = DSTon;
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}
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tZONE tDST {
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yyTimezone = $1;
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yyDSTmode = DSTon;
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}
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;
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day : tDAY {
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yyDayOrdinal = 1;
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yyDayNumber = $1;
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}
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| tDAY ',' {
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yyDayOrdinal = 1;
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yyDayNumber = $1;
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}
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| tUNUMBER tDAY {
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yyDayOrdinal = $1;
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yyDayNumber = $2;
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}
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;
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date : tUNUMBER '/' tUNUMBER {
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yyMonth = $1;
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yyDay = $3;
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}
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| tUNUMBER '/' tUNUMBER '/' tUNUMBER {
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yyMonth = $1;
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yyDay = $3;
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yyYear = $5;
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}
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| tUNUMBER tSNUMBER tSNUMBER {
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/* ISO 8601 format. yyyy-mm-dd. */
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yyYear = $1;
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yyMonth = -$2;
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yyDay = -$3;
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}
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| tMONTH tUNUMBER {
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yyMonth = $1;
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yyDay = $2;
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}
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| tMONTH tUNUMBER ',' tUNUMBER {
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yyMonth = $1;
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yyDay = $2;
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yyYear = $4;
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}
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| tUNUMBER tMONTH {
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yyMonth = $2;
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yyDay = $1;
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}
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| tUNUMBER tMONTH tUNUMBER {
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yyMonth = $2;
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yyDay = $1;
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yyYear = $3;
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}
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;
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rel : relunit tAGO {
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yyRelSeconds = -yyRelSeconds;
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yyRelMonth = -yyRelMonth;
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}
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| relunit
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;
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relunit : tUNUMBER tMINUTE_UNIT {
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yyRelSeconds += $1 * $2 * 60L;
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}
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| tSNUMBER tMINUTE_UNIT {
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|
|
yyRelSeconds += $1 * $2 * 60L;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tMINUTE_UNIT {
|
|
|
|
|
|
yyRelSeconds += $1 * 60L;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tSNUMBER tSEC_UNIT {
|
|
|
|
|
|
yyRelSeconds += $1;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tUNUMBER tSEC_UNIT {
|
|
|
|
|
|
yyRelSeconds += $1;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tSEC_UNIT {
|
|
|
|
|
|
yyRelSeconds++;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tSNUMBER tMONTH_UNIT {
|
|
|
|
|
|
yyRelMonth += $1 * $2;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tUNUMBER tMONTH_UNIT {
|
|
|
|
|
|
yyRelMonth += $1 * $2;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tMONTH_UNIT {
|
|
|
|
|
|
yyRelMonth += $1;
|
|
|
|
|
|
}
|
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
number : tUNUMBER {
|
|
|
|
|
|
if (yyHaveTime && yyHaveDate && !yyHaveRel)
|
|
|
|
|
|
yyYear = $1;
|
|
|
|
|
|
else {
|
|
|
|
|
|
if($1>10000) {
|
|
|
|
|
|
time_t date_part;
|
|
|
|
|
|
|
|
|
|
|
|
date_part= $1/10000;
|
|
|
|
|
|
yyHaveDate++;
|
|
|
|
|
|
yyDay= (date_part)%100;
|
|
|
|
|
|
yyMonth= (date_part/100)%100;
|
|
|
|
|
|
yyYear = date_part/10000;
|
|
|
|
|
|
}
|
|
|
|
|
|
yyHaveTime++;
|
|
|
|
|
|
if ($1 < 100) {
|
|
|
|
|
|
yyHour = $1;
|
|
|
|
|
|
yyMinutes = 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
else {
|
|
|
|
|
|
yyHour = $1 / 100;
|
|
|
|
|
|
yyMinutes = $1 % 100;
|
|
|
|
|
|
}
|
|
|
|
|
|
yySeconds = 0;
|
|
|
|
|
|
yyMeridian = MER24;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
o_merid : /* NULL */ {
|
|
|
|
|
|
$$ = MER24;
|
|
|
|
|
|
}
|
|
|
|
|
|
| tMERIDIAN {
|
|
|
|
|
|
$$ = $1;
|
|
|
|
|
|
}
|
|
|
|
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
%%
|
|
|
|
|
|
|
|
|
|
|
|
/* 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 */
|
1994-11-04 03:14:13 +01:00
|
|
|
|
#ifdef __FreeBSD__
|
1993-06-18 06:22:21 +02:00
|
|
|
|
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) */
|
