#include <sys/cdefs.h>
#ifndef lint
#if 0
static char yysccsid[] = "@(#)yaccpar 1.9 (Berkeley) 02/21/93";
#else
__IDSTRING(yyrcsid, "$NetBSD: skeleton.c,v 1.14 1997/10/20 03:41:16 lukem Exp $");
#endif
#endif
#include <stdlib.h>
#define YYBYACC 1
#define YYMAJOR 1
#define YYMINOR 9
#define YYLEX yylex()
#define YYEMPTY -1
#define yyclearin (yychar=(YYEMPTY))
#define yyerrok (yyerrflag=0)
#define YYRECOVERING (yyerrflag!=0)
#define YYPREFIX "yy"
#line 2 "getdate.y"
#ifdef HAVE_CONFIG_H
#if defined (emacs) || defined (CONFIG_BROKETS)
#include <config.h>
#else
#include "config.h"
#endif
#endif
#ifdef emacs
#undef static
#endif
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#if defined(vms)
# include <types.h>
#else
# include <sys/types.h>
# include <sys/time.h>
# include <time.h>
#endif
#include <sys/timeb.h>
#if defined (STDC_HEADERS) || defined (USG)
#include <string.h>
#endif
#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
extern struct tm *gmtime();
extern struct tm *localtime();
#define yyparse getdate_yyparse
#define yylex getdate_yylex
#define yyerror getdate_yyerror
static int yyparse ();
static int yylex ();
static int yyerror ();
#define EPOCH 1970
#define HOUR(x) ((time_t)(x) * 60)
#define SECSPERDAY (24L * 60L * 60L)
typedef struct _TABLE {
char *name;
int type;
time_t value;
} TABLE;
typedef enum _DSTMODE {
DSTon, DSToff, DSTmaybe
} DSTMODE;
typedef enum _MERIDIAN {
MERam, MERpm, MER24
} MERIDIAN;
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 150 "getdate.y"
typedef union {
time_t Number;
enum _MERIDIAN Meridian;
} YYSTYPE;
#line 172 "y.tab.c"
#define tAGO 257
#define tDAY 258
#define tDAYZONE 259
#define tID 260
#define tMERIDIAN 261
#define tMINUTE_UNIT 262
#define tMONTH 263
#define tMONTH_UNIT 264
#define tSEC_UNIT 265
#define tSNUMBER 266
#define tUNUMBER 267
#define tZONE 268
#define tDST 269
#define YYERRCODE 256
short yylhs[] = { -1,
0, 0, 2, 2, 2, 2, 2, 2, 3, 3,
3, 3, 3, 4, 4, 4, 6, 6, 6, 5,
5, 5, 5, 5, 5, 5, 5, 7, 7, 9,
9, 9, 9, 9, 9, 9, 9, 9, 8, 1,
1,
};
short yylen[] = { 2,
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,
};
short yydefred[] = { 1,
0, 0, 15, 32, 0, 38, 35, 0, 0, 0,
2, 3, 4, 5, 6, 7, 8, 0, 18, 0,
31, 36, 33, 19, 9, 30, 0, 37, 34, 0,
0, 0, 16, 28, 0, 23, 27, 22, 0, 0,
25, 41, 11, 0, 10, 0, 0, 21, 13, 12,
};
short yydgoto[] = { 1,
45, 11, 12, 13, 14, 15, 16, 17, 18,
};
short yysindex[] = { 0,
-249, -38, 0, 0, -260, 0, 0, -240, -47, -248,
0, 0, 0, 0, 0, 0, 0, -237, 0, -18,
0, 0, 0, 0, 0, 0, -262, 0, 0, -239,
-238, -236, 0, 0, -235, 0, 0, 0, -56, -19,
0, 0, 0, -234, 0, -232, -258, 0, 0, 0,
};
short yyrindex[] = { 0,
0, 1, 0, 0, 0, 0, 0, 0, 69, 12,
0, 0, 0, 0, 0, 0, 0, 23, 0, 34,
0, 0, 0, 0, 0, 0, 67, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 56, 45,
0, 0, 0, 0, 0, 0, 56, 0, 0, 0,
};
short yygindex[] = { 0,
-17, 0, 0, 0, 0, 0, 0, 0, 0,
};
#define YYTABLESIZE 337
short yytable[] = { 32,
17, 44, 42, 36, 37, 19, 20, 49, 2, 3,
31, 14, 4, 5, 6, 7, 8, 9, 10, 34,
33, 21, 29, 22, 23, 35, 38, 46, 39, 50,
40, 41, 47, 24, 48, 0, 0, 0, 0, 0,
0, 0, 0, 0, 20, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 40, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 26, 0, 39, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 42, 0, 0, 0, 0, 43,
24, 0, 0, 25, 26, 27, 28, 29, 30, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 17, 17,
0, 0, 17, 17, 17, 17, 17, 17, 17, 14,
14, 0, 0, 14, 14, 14, 14, 14, 14, 14,
29, 29, 0, 0, 29, 29, 29, 29, 29, 29,
29, 24, 24, 0, 0, 24, 24, 24, 24, 24,
24, 24, 20, 20, 0, 0, 20, 20, 20, 20,
20, 20, 20, 40, 40, 0, 0, 40, 40, 40,
40, 0, 40, 40, 26, 26, 0, 39, 26, 26,
26, 26, 0, 0, 26, 39, 39,
};
short yycheck[] = { 47,
0, 58, 261, 266, 267, 44, 267, 266, 258, 259,
58, 0, 262, 263, 264, 265, 266, 267, 268, 257,
269, 262, 0, 264, 265, 44, 266, 47, 267, 47,
267, 267, 267, 0, 267, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 0, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, 0, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, 0, -1, 0, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, 261, -1, -1, -1, -1, 266,
258, -1, -1, 261, 262, 263, 264, 265, 266, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, 258, 259,
-1, -1, 262, 263, 264, 265, 266, 267, 268, 258,
259, -1, -1, 262, 263, 264, 265, 266, 267, 268,
258, 259, -1, -1, 262, 263, 264, 265, 266, 267,
268, 258, 259, -1, -1, 262, 263, 264, 265, 266,
267, 268, 258, 259, -1, -1, 262, 263, 264, 265,
266, 267, 268, 258, 259, -1, -1, 262, 263, 264,
265, -1, 267, 268, 258, 259, -1, 259, 262, 263,
264, 265, -1, -1, 268, 267, 268,
};
#define YYFINAL 1
#ifndef YYDEBUG
#define YYDEBUG 0
#endif
#define YYMAXTOKEN 269
#if YYDEBUG
char *yyname[] = {
"end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,"','",0,0,"'/'",0,0,0,0,0,0,0,0,0,0,"':'",0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"tAGO","tDAY",
"tDAYZONE","tID","tMERIDIAN","tMINUTE_UNIT","tMONTH","tMONTH_UNIT","tSEC_UNIT",
"tSNUMBER","tUNUMBER","tZONE","tDST",
};
char *yyrule[] = {
"$accept : spec",
"spec :",
"spec : spec item",
"item : time",
"item : zone",
"item : date",
"item : day",
"item : rel",
"item : number",
"time : tUNUMBER tMERIDIAN",
"time : tUNUMBER ':' tUNUMBER o_merid",
"time : tUNUMBER ':' tUNUMBER tSNUMBER",
"time : tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid",
"time : tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER",
"zone : tZONE",
"zone : tDAYZONE",
"zone : tZONE tDST",
"day : tDAY",
"day : tDAY ','",
"day : tUNUMBER tDAY",
"date : tUNUMBER '/' tUNUMBER",
"date : tUNUMBER '/' tUNUMBER '/' tUNUMBER",
"date : tUNUMBER tSNUMBER tSNUMBER",
"date : tUNUMBER tMONTH tSNUMBER",
"date : tMONTH tUNUMBER",
"date : tMONTH tUNUMBER ',' tUNUMBER",
"date : tUNUMBER tMONTH",
"date : tUNUMBER tMONTH tUNUMBER",
"rel : relunit tAGO",
"rel : relunit",
"relunit : tUNUMBER tMINUTE_UNIT",
"relunit : tSNUMBER tMINUTE_UNIT",
"relunit : tMINUTE_UNIT",
"relunit : tSNUMBER tSEC_UNIT",
"relunit : tUNUMBER tSEC_UNIT",
"relunit : tSEC_UNIT",
"relunit : tSNUMBER tMONTH_UNIT",
"relunit : tUNUMBER tMONTH_UNIT",
"relunit : tMONTH_UNIT",
"number : tUNUMBER",
"o_merid :",
"o_merid : tMERIDIAN",
};
#endif
#ifdef YYSTACKSIZE
#undef YYMAXDEPTH
#define YYMAXDEPTH YYSTACKSIZE
#else
#ifdef YYMAXDEPTH
#define YYSTACKSIZE YYMAXDEPTH
#else
#define YYSTACKSIZE 10000
#define YYMAXDEPTH 10000
#endif
#endif
#define YYINITSTACKSIZE 200
int yydebug;
int yynerrs;
int yyerrflag;
int yychar;
short *yyssp;
YYSTYPE *yyvsp;
YYSTYPE yyval;
YYSTYPE yylval;
short *yyss;
short *yysslim;
YYSTYPE *yyvs;
int yystacksize;
#line 369 "getdate.y"
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 }
};
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 }
};
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 },
{ "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 }
};
static TABLE const TimezoneTable[] = {
{ "gmt", tZONE, HOUR( 0) },
{ "ut", tZONE, HOUR( 0) },
{ "utc", tZONE, HOUR( 0) },
{ "wet", tZONE, HOUR( 0) },
{ "bst", tDAYZONE, HOUR( 0) },
{ "wat", tZONE, HOUR( 1) },
{ "at", tZONE, HOUR( 2) },
#if 0
{ "bst", tZONE, HOUR( 3) },
{ "gst", tZONE, HOUR( 3) },
#endif
#if 0
{ "nft", tZONE, HOUR(3.5) },
{ "nst", tZONE, HOUR(3.5) },
{ "ndt", tDAYZONE, HOUR(3.5) },
#endif
{ "ast", tZONE, HOUR( 4) },
{ "adt", tDAYZONE, HOUR( 4) },
{ "est", tZONE, HOUR( 5) },
{ "edt", tDAYZONE, HOUR( 5) },
{ "cst", tZONE, HOUR( 6) },
{ "cdt", tDAYZONE, HOUR( 6) },
{ "mst", tZONE, HOUR( 7) },
{ "mdt", tDAYZONE, HOUR( 7) },
{ "pst", tZONE, HOUR( 8) },
{ "pdt", tDAYZONE, HOUR( 8) },
{ "yst", tZONE, HOUR( 9) },
{ "ydt", tDAYZONE, HOUR( 9) },
{ "hst", tZONE, HOUR(10) },
{ "hdt", tDAYZONE, HOUR(10) },
{ "cat", tZONE, HOUR(10) },
{ "ahst", tZONE, HOUR(10) },
{ "nt", tZONE, HOUR(11) },
{ "idlw", tZONE, HOUR(12) },
{ "cet", tZONE, -HOUR(1) },
{ "met", tZONE, -HOUR(1) },
{ "mewt", tZONE, -HOUR(1) },
{ "mest", tDAYZONE, -HOUR(1) },
{ "swt", tZONE, -HOUR(1) },
{ "sst", tDAYZONE, -HOUR(1) },
{ "fwt", tZONE, -HOUR(1) },
{ "fst", tDAYZONE, -HOUR(1) },
{ "eet", tZONE, -HOUR(2) },
{ "bt", tZONE, -HOUR(3) },
#if 0
{ "it", tZONE, -HOUR(3.5) },
#endif
{ "zp4", tZONE, -HOUR(4) },
{ "zp5", tZONE, -HOUR(5) },
#if 0
{ "ist", tZONE, -HOUR(5.5) },
#endif
{ "zp6", tZONE, -HOUR(6) },
#if 0
{ "nst", tZONE, -HOUR(6.5) },
{ "sst", tZONE, -HOUR(7) },
#endif
{ "wast", tZONE, -HOUR(7) },
{ "wadt", tDAYZONE, -HOUR(7) },
#if 0
{ "jt", tZONE, -HOUR(7.5) },
#endif
{ "cct", tZONE, -HOUR(8) },
{ "jst", tZONE, -HOUR(9) },
#if 0
{ "cast", tZONE, -HOUR(9.5) },
{ "cadt", tDAYZONE, -HOUR(9.5) },
#endif
{ "east", tZONE, -HOUR(10) },
{ "eadt", tDAYZONE, -HOUR(10) },
{ "gst", tZONE, -HOUR(10) },
{ "nzt", tZONE, -HOUR(12) },
{ "nzst", tZONE, -HOUR(12) },
{ "nzdt", tDAYZONE, -HOUR(12) },
{ "idle", tZONE, -HOUR(12) },
{ NULL }
};
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 }
};
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;
if (Hours == 12)
Hours = 0;
return (Hours * 60L + Minutes) * 60L + Seconds;
case MERpm:
if (Hours < 1 || Hours > 12)
return -1;
if (Hours == 12)
Hours = 0;
return ((Hours + 12) * 60L + Minutes) * 60L + Seconds;
default:
abort ();
}
}
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 < 69)
Year += 2000;
else if (Year < 100)
Year += 1900;
DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
? 29 : 28;
if (Year < EPOCH || Year > 2038
|| Month < 1 || Month > 12
|| 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 + 1900) + 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;
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;
}
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;
}
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';
}
for (tp = OtherTable; tp->name; tp++)
if (strcmp(buff, tp->name) == 0) {
yylval.Number = tp->value;
return tp->type;
}
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;
}
}
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))
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
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 = (
a->tm_yday - b->tm_yday
+ ((ay >> 2) - (by >> 2))
- (ay/100 - by/100)
+ ((ay/100 >> 2) - (by/100 >> 2))
+ (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;
time_t nowtime;
yyInput = p;
if (now == NULL) {
struct tm *gmt_ptr;
now = &ftz;
(void)time (&nowtime);
gmt_ptr = gmtime (&nowtime);
if (gmt_ptr != NULL)
{
gmt = *gmt_ptr;
}
if (! (tm = localtime (&nowtime)))
return -1;
if (gmt_ptr != NULL)
ftz.timezone = difftm (&gmt, tm) / 60;
else
ftz.timezone = 0;
if(tm->tm_isdst)
ftz.timezone += 60;
}
else
{
nowtime = now->time;
}
tm = localtime(&nowtime);
yyYear = tm->tm_year + 1900;
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 = nowtime;
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;
}
return Start == -1 ? 0 : Start;
}
#if defined(TEST)
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);
}
#endif
#line 1031 "y.tab.c"
int yyparse __P((void));
static int yygrowstack __P((void));
static int yygrowstack()
{
int newsize, i;
short *newss;
YYSTYPE *newvs;
if ((newsize = yystacksize) == 0)
newsize = YYINITSTACKSIZE;
else if (newsize >= YYMAXDEPTH)
return -1;
else if ((newsize *= 2) > YYMAXDEPTH)
newsize = YYMAXDEPTH;
i = yyssp - yyss;
if ((newss = (short *)realloc(yyss, newsize * sizeof *newss)) == NULL)
return -1;
yyss = newss;
yyssp = newss + i;
if ((newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs)) == NULL)
return -1;
yyvs = newvs;
yyvsp = newvs + i;
yystacksize = newsize;
yysslim = yyss + newsize - 1;
return 0;
}
#define YYABORT goto yyabort
#define YYREJECT goto yyabort
#define YYACCEPT goto yyaccept
#define YYERROR goto yyerrlab
int
yyparse()
{
int yym, yyn, yystate;
#if YYDEBUG
char *yys;
if ((yys = getenv("YYDEBUG")) != NULL)
{
yyn = *yys;
if (yyn >= '0' && yyn <= '9')
yydebug = yyn - '0';
}
#endif
yynerrs = 0;
yyerrflag = 0;
yychar = (-1);
if (yyss == NULL && yygrowstack()) goto yyoverflow;
yyssp = yyss;
yyvsp = yyvs;
*yyssp = yystate = 0;
yyloop:
if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
}
if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, shifting to state %d\n",
YYPREFIX, yystate, yytable[yyn]);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
yychar = (-1);
if (yyerrflag > 0) --yyerrflag;
goto yyloop;
}
if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
{
yyn = yytable[yyn];
goto yyreduce;
}
if (yyerrflag) goto yyinrecovery;
goto yynewerror;
yynewerror:
yyerror("syntax error");
goto yyerrlab;
yyerrlab:
++yynerrs;
yyinrecovery:
if (yyerrflag < 3)
{
yyerrflag = 3;
for (;;)
{
if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, error recovery shifting\
to state %d\n", YYPREFIX, *yyssp, yytable[yyn]);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate = yytable[yyn];
*++yyvsp = yylval;
goto yyloop;
}
else
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: error recovery discarding state %d\n",
YYPREFIX, *yyssp);
#endif
if (yyssp <= yyss) goto yyabort;
--yyssp;
--yyvsp;
}
}
}
else
{
if (yychar == 0) goto yyabort;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
YYPREFIX, yystate, yychar, yys);
}
#endif
yychar = (-1);
goto yyloop;
}
yyreduce:
#if YYDEBUG
if (yydebug)
printf("%sdebug: state %d, reducing by rule %d (%s)\n",
YYPREFIX, yystate, yyn, yyrule[yyn]);
#endif
yym = yylen[yyn];
yyval = yyvsp[1-yym];
switch (yyn)
{
case 3:
#line 168 "getdate.y"
{
yyHaveTime++;
}
break;
case 4:
#line 171 "getdate.y"
{
yyHaveZone++;
}
break;
case 5:
#line 174 "getdate.y"
{
yyHaveDate++;
}
break;
case 6:
#line 177 "getdate.y"
{
yyHaveDay++;
}
break;
case 7:
#line 180 "getdate.y"
{
yyHaveRel++;
}
break;
case 9:
#line 186 "getdate.y"
{
yyHour = yyvsp[-1].Number;
yyMinutes = 0;
yySeconds = 0;
yyMeridian = yyvsp[0].Meridian;
}
break;
case 10:
#line 192 "getdate.y"
{
yyHour = yyvsp[-3].Number;
yyMinutes = yyvsp[-1].Number;
yySeconds = 0;
yyMeridian = yyvsp[0].Meridian;
}
break;
case 11:
#line 198 "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 205 "getdate.y"
{
yyHour = yyvsp[-5].Number;
yyMinutes = yyvsp[-3].Number;
yySeconds = yyvsp[-1].Number;
yyMeridian = yyvsp[0].Meridian;
}
break;
case 13:
#line 211 "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 221 "getdate.y"
{
yyTimezone = yyvsp[0].Number;
yyDSTmode = DSToff;
}
break;
case 15:
#line 225 "getdate.y"
{
yyTimezone = yyvsp[0].Number;
yyDSTmode = DSTon;
}
break;
case 16:
#line 230 "getdate.y"
{
yyTimezone = yyvsp[-1].Number;
yyDSTmode = DSTon;
}
break;
case 17:
#line 236 "getdate.y"
{
yyDayOrdinal = 1;
yyDayNumber = yyvsp[0].Number;
}
break;
case 18:
#line 240 "getdate.y"
{
yyDayOrdinal = 1;
yyDayNumber = yyvsp[-1].Number;
}
break;
case 19:
#line 244 "getdate.y"
{
yyDayOrdinal = yyvsp[-1].Number;
yyDayNumber = yyvsp[0].Number;
}
break;
case 20:
#line 250 "getdate.y"
{
yyMonth = yyvsp[-2].Number;
yyDay = yyvsp[0].Number;
}
break;
case 21:
#line 254 "getdate.y"
{
if (yyvsp[-4].Number >= 100) {
yyYear = yyvsp[-4].Number;
yyMonth = yyvsp[-2].Number;
yyDay = yyvsp[0].Number;
} else {
yyMonth = yyvsp[-4].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
}
}
break;
case 22:
#line 265 "getdate.y"
{
yyYear = yyvsp[-2].Number;
yyMonth = -yyvsp[-1].Number;
yyDay = -yyvsp[0].Number;
}
break;
case 23:
#line 271 "getdate.y"
{
yyDay = yyvsp[-2].Number;
yyMonth = yyvsp[-1].Number;
yyYear = -yyvsp[0].Number;
}
break;
case 24:
#line 277 "getdate.y"
{
yyMonth = yyvsp[-1].Number;
yyDay = yyvsp[0].Number;
}
break;
case 25:
#line 281 "getdate.y"
{
yyMonth = yyvsp[-3].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
}
break;
case 26:
#line 286 "getdate.y"
{
yyMonth = yyvsp[0].Number;
yyDay = yyvsp[-1].Number;
}
break;
case 27:
#line 290 "getdate.y"
{
yyMonth = yyvsp[-1].Number;
yyDay = yyvsp[-2].Number;
yyYear = yyvsp[0].Number;
}
break;
case 28:
#line 297 "getdate.y"
{
yyRelSeconds = -yyRelSeconds;
yyRelMonth = -yyRelMonth;
}
break;
case 30:
#line 304 "getdate.y"
{
yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
}
break;
case 31:
#line 307 "getdate.y"
{
yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
}
break;
case 32:
#line 310 "getdate.y"
{
yyRelSeconds += yyvsp[0].Number * 60L;
}
break;
case 33:
#line 313 "getdate.y"
{
yyRelSeconds += yyvsp[-1].Number;
}
break;
case 34:
#line 316 "getdate.y"
{
yyRelSeconds += yyvsp[-1].Number;
}
break;
case 35:
#line 319 "getdate.y"
{
yyRelSeconds++;
}
break;
case 36:
#line 322 "getdate.y"
{
yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
}
break;
case 37:
#line 325 "getdate.y"
{
yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
}
break;
case 38:
#line 328 "getdate.y"
{
yyRelMonth += yyvsp[0].Number;
}
break;
case 39:
#line 333 "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 360 "getdate.y"
{
yyval.Meridian = MER24;
}
break;
case 41:
#line 363 "getdate.y"
{
yyval.Meridian = yyvsp[0].Meridian;
}
break;
#line 1487 "y.tab.c"
}
yyssp -= yym;
yystate = *yyssp;
yyvsp -= yym;
yym = yylhs[yyn];
if (yystate == 0 && yym == 0)
{
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state 0 to\
state %d\n", YYPREFIX, YYFINAL);
#endif
yystate = YYFINAL;
*++yyssp = YYFINAL;
*++yyvsp = yyval;
if (yychar < 0)
{
if ((yychar = yylex()) < 0) yychar = 0;
#if YYDEBUG
if (yydebug)
{
yys = 0;
if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
if (!yys) yys = "illegal-symbol";
printf("%sdebug: state %d, reading %d (%s)\n",
YYPREFIX, YYFINAL, yychar, yys);
}
#endif
}
if (yychar == 0) goto yyaccept;
goto yyloop;
}
if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
yystate = yytable[yyn];
else
yystate = yydgoto[yym];
#if YYDEBUG
if (yydebug)
printf("%sdebug: after reduction, shifting from state %d \
to state %d\n", YYPREFIX, *yyssp, yystate);
#endif
if (yyssp >= yysslim && yygrowstack())
{
goto yyoverflow;
}
*++yyssp = yystate;
*++yyvsp = yyval;
goto yyloop;
yyoverflow:
yyerror("yacc stack overflow");
yyabort:
return (1);
yyaccept:
return (0);
}