mirror of
https://github.com/php/php-src.git
synced 2024-11-25 10:54:15 +08:00
1162 lines
30 KiB
Plaintext
1162 lines
30 KiB
Plaintext
%{
|
||
/*
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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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**
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** This code is in the public domain and has no copyright.
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||
*/
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||
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||
/* $Id$ */
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#include "php.h"
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#ifdef PHP_WIN32
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#include <malloc.h>
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#endif
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||
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||
#include <stdio.h>
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||
#include <sys/types.h>
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||
#include <time.h>
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||
#include <ctype.h>
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||
|
||
#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
|
||
#endif
|
||
#ifdef PHP_WIN32
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||
# include "win32/time.h"
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||
#endif
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||
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||
#include "php_parsedate.h"
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||
|
||
#if HAVE_STDLIB_H
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||
# include <stdlib.h> /* for `free'; used by Bison 1.27 */
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||
#endif
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||
|
||
#if defined(_HPUX_SOURCE)
|
||
#include <alloca.h>
|
||
#endif
|
||
|
||
#if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
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||
# 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))
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||
|
||
/* ISDIGIT differs from ISDIGIT_LOCALE, as follows:
|
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- 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.
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||
Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
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only '0' through '9' are digits. Prefer ISDIGIT to ISDIGIT_LOCALE unless
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it's important to use the locale's definition of `digit' even when the
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||
host does not conform to Posix. */
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#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
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||
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||
#if defined (STDC_HEADERS) || defined (USG)
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||
# include <string.h>
|
||
#endif
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||
|
||
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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# define __attribute__(x)
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||
#endif
|
||
|
||
#ifndef ATTRIBUTE_UNUSED
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# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
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||
#endif
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||
|
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/* Some old versions of bison generate parsers that use bcopy.
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That loses on systems that don't provide the function, so we have
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to redefine it here. */
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#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
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# define bcopy(from, to, len) memcpy ((to), (from), (len))
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#endif
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/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
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as well as gratuitiously global symbol names, so we can have multiple
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||
yacc generated parsers in the same program. Note that these are only
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the variables produced by yacc. If other parser generators (bison,
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byacc, etc) produce additional global names that conflict at link time,
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||
then those parser generators need to be fixed instead of adding those
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||
names to this list. */
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|
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#define yyparse php_gd_parse
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#define yylex php_gd_lex
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static int yyerror ();
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|
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#define EPOCH 1970
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#define HOUR(x) ((x) * 60)
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|
||
#define MAX_BUFF_LEN 128 /* size of buffer to read the date into */
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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 {
|
||
const char *name;
|
||
int type;
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||
int value;
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||
} TABLE;
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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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struct date_yy {
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const char *yyInput;
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int yyDayOrdinal;
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int yyDayNumber;
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int yyHaveDate;
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int yyHaveDay;
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int yyHaveRel;
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int yyHaveTime;
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int yyHaveZone;
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||
int yyTimezone;
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int yyDay;
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||
int yyHour;
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int yyMinutes;
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||
int yyMonth;
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int yySeconds;
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int yyYear;
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MERIDIAN yyMeridian;
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int yyRelDay;
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int yyRelHour;
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int yyRelMinutes;
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int yyRelMonth;
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int yyRelSeconds;
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int yyRelYear;
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};
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typedef union _date_ll {
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int Number;
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enum _MERIDIAN Meridian;
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} date_ll;
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#define YYPARSE_PARAM parm
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#define YYLEX_PARAM parm
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#define YYSTYPE date_ll
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#define YYLTYPE void
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static int yylex (YYSTYPE *lvalp, void *parm);
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%}
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/* This grammar has 56 shift/reduce conflicts. */
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%expect 56
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%pure_parser
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%token tAGO tDAY tDAY_UNIT tDAYZONE tDST tHOUR_UNIT tID tTZONE tWZONE tZZONE
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%token tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
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%token tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
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%type <Number> tDAY tDAY_UNIT tDAYZONE tHOUR_UNIT tMINUTE_UNIT
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%type <Number> tMONTH tMONTH_UNIT
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%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE tTZONE tWZONE tZZONE
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%type <Meridian> tMERIDIAN
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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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((struct date_yy *)parm)->yyHaveTime++;
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}
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| zone {
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((struct date_yy *)parm)->yyHaveZone++;
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}
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| date {
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((struct date_yy *)parm)->yyHaveDate++;
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}
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| day {
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((struct date_yy *)parm)->yyHaveDay++;
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}
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| rel {
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((struct date_yy *)parm)->yyHaveRel++;
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}
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| number
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| o_merid
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;
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time : tUNUMBER tMERIDIAN {
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((struct date_yy *)parm)->yyHour = $1;
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((struct date_yy *)parm)->yyMinutes = 0;
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((struct date_yy *)parm)->yySeconds = 0;
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((struct date_yy *)parm)->yyMeridian = $2;
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}
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| iso8601time_colon
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/* | pgsqltime ... shares a common spec with ISO8601 */
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;
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iso8601time_colon: HMStime_with_colon sec_fraction_part rel {
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((struct date_yy *)parm)->yyMeridian = MER24;
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}
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| HMtime_with_colon sec_fraction_part rel {
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((struct date_yy *)parm)->yyMeridian = MER24;
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((struct date_yy *)parm)->yySeconds = 0;
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}
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| HMStime_with_colon sec_fraction_part iso8601zonepart {
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((struct date_yy *)parm)->yyMeridian = MER24;
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}
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| HMtime_with_colon sec_fraction_part iso8601zonepart {
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((struct date_yy *)parm)->yyMeridian = MER24;
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((struct date_yy *)parm)->yySeconds = 0;
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}
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;
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iso8601zonepart: zonepart_numeric_without_colon {
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((struct date_yy *)parm)->yyHaveZone++;
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}
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| zonepart_numeric_with_colon {
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((struct date_yy *)parm)->yyHaveZone++;
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}
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| zone {
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((struct date_yy *)parm)->yyHaveZone++;
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}
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| /* empty */
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;
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sec_fraction_part: '.' tUNUMBER {
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}
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| /* empty */
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;
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zonepart_numeric_without_colon: tSNUMBER {
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/* format: [+-]hhmm */
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if ($1 <= -100 || $1 >= 100) {
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((struct date_yy *)parm)->yyTimezone = (-$1 / 100) * 60 + (-$1 % 100);
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} else if ($1 >= -99 || $1 <= 99) {
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((struct date_yy *)parm)->yyTimezone = -$1 * 60;
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}
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}
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;
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zonepart_numeric_with_colon: tSNUMBER ':' tUNUMBER {
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/* format: [+-]hh:mm */
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((struct date_yy *)parm)->yyTimezone = -$1 * 60 + ($1 > 0 ? -$3: $3);
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}
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;
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HMStime_with_colon: HMtime_with_colon ':' tUNUMBER {
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/* format: hh:mm:ss */
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((struct date_yy *)parm)->yySeconds = $3;
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}
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;
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HMtime_with_colon: tUNUMBER ':' tUNUMBER {
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/* format: hh:mm */
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((struct date_yy *)parm)->yyHour = $1;
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((struct date_yy *)parm)->yyMinutes = $3;
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}
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;
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/* we have to deal with a special case for the datetime format
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of XML Schema here: '2003-11-18T22:40:00Z'
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the combination of a 'T' timezone specifier later followed
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by a 'Z' is now recognized and allowed
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TODO: change the grammer so that the exact positions are checked
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right now '2003-11-18 22:40:00 TZ' is also accepted (hartmut)
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*/
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zone : tTZONE {
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((struct date_yy *)parm)->yyTimezone = $1;
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}
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| tWZONE {
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((struct date_yy *)parm)->yyTimezone = $1;
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}
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| tZZONE {
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((struct date_yy *)parm)->yyTimezone = $1;
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}
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| tZONE {
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((struct date_yy *)parm)->yyTimezone = $1;
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}
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| tDAYZONE {
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((struct date_yy *)parm)->yyTimezone = $1 - 60;
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}
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| tZONE tDST {
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((struct date_yy *)parm)->yyTimezone = $1 - 60;
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}
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;
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day : tDAY {
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((struct date_yy *)parm)->yyDayOrdinal = 1;
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((struct date_yy *)parm)->yyDayNumber = $1;
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}
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| tDAY ',' {
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((struct date_yy *)parm)->yyDayOrdinal = 1;
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((struct date_yy *)parm)->yyDayNumber = $1;
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}
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| tUNUMBER tDAY {
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((struct date_yy *)parm)->yyDayOrdinal = $1;
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((struct date_yy *)parm)->yyDayNumber = $2;
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}
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;
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date : tUNUMBER '/' tUNUMBER {
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((struct date_yy *)parm)->yyMonth = $1;
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((struct date_yy *)parm)->yyDay = $3;
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}
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| tMONTH tUNUMBER tUNUMBER ':' tUNUMBER ':' tUNUMBER tUNUMBER {
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((struct date_yy *)parm)->yyYear = $8;
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((struct date_yy *)parm)->yyMonth = $1;
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((struct date_yy *)parm)->yyDay = $2;
|
||
|
||
((struct date_yy *)parm)->yyHour = $3;
|
||
((struct date_yy *)parm)->yyMinutes = $5;
|
||
((struct date_yy *)parm)->yySeconds = $7;
|
||
|
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((struct date_yy *)parm)->yyHaveTime = 1;
|
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}
|
||
| tUNUMBER '/' tUNUMBER '/' tUNUMBER {
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||
/* Interpret as YYYY/MM/DD if $1 >= 1000, otherwise as MM/DD/YY.
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The goal in recognizing YYYY/MM/DD is solely to support legacy
|
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machine-generated dates like those in an RCS log listing. If
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you want portability, use the ISO 8601 format. */
|
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if ($1 >= 1000)
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{
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((struct date_yy *)parm)->yyYear = $1;
|
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((struct date_yy *)parm)->yyMonth = $3;
|
||
((struct date_yy *)parm)->yyDay = $5;
|
||
}
|
||
else
|
||
{
|
||
((struct date_yy *)parm)->yyMonth = $1;
|
||
((struct date_yy *)parm)->yyDay = $3;
|
||
((struct date_yy *)parm)->yyYear = $5;
|
||
}
|
||
}
|
||
| iso8601date
|
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| iso8601datetime {
|
||
((struct date_yy *)parm)->yyHaveTime++;
|
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}
|
||
| tUNUMBER tMONTH tSNUMBER {
|
||
/* e.g. 17-JUN-1992. */
|
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((struct date_yy *)parm)->yyDay = $1;
|
||
((struct date_yy *)parm)->yyMonth = $2;
|
||
((struct date_yy *)parm)->yyYear = -$3;
|
||
}
|
||
| tMONTH tUNUMBER tUNUMBER {
|
||
((struct date_yy *)parm)->yyMonth = $1;
|
||
((struct date_yy *)parm)->yyDay = $2;
|
||
((struct date_yy *)parm)->yyYear = $3;
|
||
}
|
||
| tMONTH tUNUMBER {
|
||
((struct date_yy *)parm)->yyMonth = $1;
|
||
if ($2 > 1000) {
|
||
((struct date_yy *)parm)->yyYear = $2;
|
||
} else {
|
||
((struct date_yy *)parm)->yyDay = $2;
|
||
}
|
||
}
|
||
| tMONTH tUNUMBER ',' tUNUMBER {
|
||
((struct date_yy *)parm)->yyMonth = $1;
|
||
((struct date_yy *)parm)->yyDay = $2;
|
||
((struct date_yy *)parm)->yyYear = $4;
|
||
}
|
||
| tUNUMBER tMONTH {
|
||
((struct date_yy *)parm)->yyMonth = $2;
|
||
if ($1 > 1000) {
|
||
((struct date_yy *)parm)->yyYear = $1;
|
||
} else {
|
||
((struct date_yy *)parm)->yyDay = $1;
|
||
}
|
||
}
|
||
| tUNUMBER tMONTH tUNUMBER {
|
||
((struct date_yy *)parm)->yyMonth = $2;
|
||
((struct date_yy *)parm)->yyDay = $1;
|
||
((struct date_yy *)parm)->yyYear = $3;
|
||
}
|
||
;
|
||
|
||
iso8601datetime: iso8601date tTZONE iso8601time
|
||
| tUNUMBER tTZONE iso8601time {
|
||
int i = $1;
|
||
|
||
if (i >= 10000) {
|
||
/* format: yyyymmdd */
|
||
((struct date_yy *)parm)->yyYear = i / 10000;
|
||
i %= 10000;
|
||
((struct date_yy *)parm)->yyMonth = i / 100;
|
||
i %= 100;
|
||
((struct date_yy *)parm)->yyDay = i;
|
||
} else if (i >= 1000 && i <= 9999) {
|
||
/* format: yyyy */
|
||
((struct date_yy *)parm)->yyYear = i;
|
||
((struct date_yy *)parm)->yyDay= 1;
|
||
((struct date_yy *)parm)->yyMonth = 1;
|
||
}
|
||
}
|
||
;
|
||
|
||
iso8601date: tUNUMBER tSNUMBER tSNUMBER {
|
||
/* ISO 8601 format. yyyy-mm-dd. */
|
||
((struct date_yy *)parm)->yyYear = $1;
|
||
((struct date_yy *)parm)->yyMonth = -$2;
|
||
((struct date_yy *)parm)->yyDay = -$3;
|
||
}
|
||
| tUNUMBER tSNUMBER {
|
||
/* ISO 8601 format yyyy-mm */
|
||
((struct date_yy *)parm)->yyYear = $1;
|
||
((struct date_yy *)parm)->yyMonth = -$2;
|
||
((struct date_yy *)parm)->yyDay = 1;
|
||
}
|
||
| tUNUMBER iso8601weekspec {
|
||
const int om = (1 + 9) % 12; /* offset month */
|
||
const int oy = $1 - 1; /* offset year */
|
||
|
||
((struct date_yy *)parm)->yyYear = $1;
|
||
((struct date_yy *)parm)->yyMonth = 1;
|
||
/* Zeller's formula */
|
||
((struct date_yy *)parm)->yyDay -= ((13 * om + 12) / 5 +
|
||
oy + oy / 4 + oy / 400 - oy / 100) % 7 - 1;
|
||
}
|
||
;
|
||
|
||
iso8601weekspec: tWZONE tUNUMBER {
|
||
((struct date_yy *)parm)->yyDay = ($2 / 10) * 7 + ($2 % 10) - 8;
|
||
}
|
||
| tWZONE tUNUMBER tSNUMBER {
|
||
((struct date_yy *)parm)->yyDay = $2 * 7 - $3 - 8;
|
||
}
|
||
;
|
||
|
||
iso8601time:
|
||
iso8601time_colon
|
||
| tUNUMBER sec_fraction_part iso8601zonepart {
|
||
int i = $1;
|
||
|
||
if (i <= -100000 || i >= 100000) {
|
||
((struct date_yy *)parm)->yyHour = i / 10000;
|
||
i %= 10000;
|
||
((struct date_yy *)parm)->yyMinutes = i / 100;
|
||
i %= 100;
|
||
((struct date_yy *)parm)->yySeconds = i;
|
||
} else if (i <= -1000 || i >= 1000) {
|
||
((struct date_yy *)parm)->yyHour = i / 100;
|
||
i %= 100;
|
||
((struct date_yy *)parm)->yyMinutes = i;
|
||
((struct date_yy *)parm)->yySeconds = 0;
|
||
} else if (i >= -99 || i <= 99) {
|
||
((struct date_yy *)parm)->yyHour = $1;
|
||
((struct date_yy *)parm)->yyMinutes = 0;
|
||
((struct date_yy *)parm)->yySeconds = 0;
|
||
} else {
|
||
((struct date_yy *)parm)->yyHaveTime = 0;
|
||
}
|
||
((struct date_yy *)parm)->yyMeridian = MER24;
|
||
}
|
||
;
|
||
|
||
rel : relunit tAGO {
|
||
((struct date_yy *)parm)->yyRelSeconds =
|
||
-((struct date_yy *)parm)->yyRelSeconds;
|
||
((struct date_yy *)parm)->yyRelMinutes =
|
||
-((struct date_yy *)parm)->yyRelMinutes;
|
||
((struct date_yy *)parm)->yyRelHour =
|
||
-((struct date_yy *)parm)->yyRelHour;
|
||
((struct date_yy *)parm)->yyRelDay =
|
||
-((struct date_yy *)parm)->yyRelDay;
|
||
((struct date_yy *)parm)->yyRelMonth =
|
||
-((struct date_yy *)parm)->yyRelMonth;
|
||
((struct date_yy *)parm)->yyRelYear =
|
||
-((struct date_yy *)parm)->yyRelYear;
|
||
}
|
||
| relunit
|
||
;
|
||
|
||
relunit : tUNUMBER tYEAR_UNIT {
|
||
((struct date_yy *)parm)->yyRelYear += $1 * $2;
|
||
}
|
||
| tSNUMBER tYEAR_UNIT {
|
||
((struct date_yy *)parm)->yyRelYear += $1 * $2;
|
||
}
|
||
| tYEAR_UNIT {
|
||
((struct date_yy *)parm)->yyRelYear += $1;
|
||
}
|
||
| tUNUMBER tMONTH_UNIT {
|
||
((struct date_yy *)parm)->yyRelMonth += $1 * $2;
|
||
}
|
||
| tSNUMBER tMONTH_UNIT {
|
||
((struct date_yy *)parm)->yyRelMonth += $1 * $2;
|
||
}
|
||
| tMONTH_UNIT {
|
||
((struct date_yy *)parm)->yyRelMonth += $1;
|
||
}
|
||
| tUNUMBER tDAY_UNIT {
|
||
((struct date_yy *)parm)->yyRelDay += $1 * $2;
|
||
}
|
||
| tSNUMBER tDAY_UNIT {
|
||
((struct date_yy *)parm)->yyRelDay += $1 * $2;
|
||
}
|
||
| tDAY_UNIT {
|
||
((struct date_yy *)parm)->yyRelDay += $1;
|
||
}
|
||
| tUNUMBER tHOUR_UNIT {
|
||
((struct date_yy *)parm)->yyRelHour += $1 * $2;
|
||
}
|
||
| tSNUMBER tHOUR_UNIT {
|
||
((struct date_yy *)parm)->yyRelHour += $1 * $2;
|
||
}
|
||
| tHOUR_UNIT {
|
||
((struct date_yy *)parm)->yyRelHour += $1;
|
||
}
|
||
| tUNUMBER tMINUTE_UNIT {
|
||
((struct date_yy *)parm)->yyRelMinutes += $1 * $2;
|
||
}
|
||
| tSNUMBER tMINUTE_UNIT {
|
||
((struct date_yy *)parm)->yyRelMinutes += $1 * $2;
|
||
}
|
||
| tMINUTE_UNIT {
|
||
((struct date_yy *)parm)->yyRelMinutes += $1;
|
||
}
|
||
| tUNUMBER tSEC_UNIT {
|
||
((struct date_yy *)parm)->yyRelSeconds += $1 * $2;
|
||
}
|
||
| tSNUMBER tSEC_UNIT {
|
||
((struct date_yy *)parm)->yyRelSeconds += $1 * $2;
|
||
}
|
||
| tSEC_UNIT {
|
||
((struct date_yy *)parm)->yyRelSeconds += $1;
|
||
}
|
||
;
|
||
|
||
number : tUNUMBER
|
||
{
|
||
if (((struct date_yy *)parm)->yyHaveTime &&
|
||
((struct date_yy *)parm)->yyHaveDate &&
|
||
!((struct date_yy *)parm)->yyHaveRel)
|
||
((struct date_yy *)parm)->yyYear = $1;
|
||
else
|
||
{
|
||
if ($1>10000)
|
||
{
|
||
((struct date_yy *)parm)->yyHaveDate++;
|
||
((struct date_yy *)parm)->yyDay= ($1)%100;
|
||
((struct date_yy *)parm)->yyMonth= ($1/100)%100;
|
||
((struct date_yy *)parm)->yyYear = $1/10000;
|
||
}
|
||
else
|
||
{
|
||
((struct date_yy *)parm)->yyHaveTime++;
|
||
if ($1 < 100)
|
||
{
|
||
((struct date_yy *)parm)->yyHour = $1;
|
||
((struct date_yy *)parm)->yyMinutes = 0;
|
||
}
|
||
else
|
||
{
|
||
((struct date_yy *)parm)->yyHour = $1 / 100;
|
||
((struct date_yy *)parm)->yyMinutes = $1 % 100;
|
||
}
|
||
((struct date_yy *)parm)->yySeconds = 0;
|
||
((struct date_yy *)parm)->yyMeridian = MER24;
|
||
}
|
||
}
|
||
}
|
||
;
|
||
|
||
o_merid : tMERIDIAN
|
||
{
|
||
((struct date_yy *)parm)->yyMeridian = $1;
|
||
}
|
||
;
|
||
|
||
%%
|
||
|
||
time_t get_date (char *p, time_t *now);
|
||
|
||
#ifndef PHP_WIN32
|
||
extern struct tm *gmtime();
|
||
extern struct tm *localtime();
|
||
extern time_t mktime();
|
||
#endif
|
||
|
||
/* 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, 0, 0 }
|
||
};
|
||
|
||
/* Time units table. */
|
||
static TABLE const UnitsTable[] = {
|
||
{ "year", tYEAR_UNIT, 1 },
|
||
{ "month", tMONTH_UNIT, 1 },
|
||
{ "fortnight", tDAY_UNIT, 14 },
|
||
{ "week", tDAY_UNIT, 7 },
|
||
{ "day", tDAY_UNIT, 1 },
|
||
{ "hour", tHOUR_UNIT, 1 },
|
||
{ "minute", tMINUTE_UNIT, 1 },
|
||
{ "min", tMINUTE_UNIT, 1 },
|
||
{ "second", tSEC_UNIT, 1 },
|
||
{ "sec", tSEC_UNIT, 1 },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
/* Assorted relative-time words. */
|
||
static TABLE const OtherTable[] = {
|
||
{ "tomorrow", tDAY_UNIT, 1 },
|
||
{ "yesterday", tDAY_UNIT, -1 },
|
||
{ "today", tDAY_UNIT, 0 },
|
||
{ "now", tDAY_UNIT, 0 },
|
||
{ "last", tUNUMBER, -1 },
|
||
{ "this", tUNUMBER, 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, 0, 0 }
|
||
};
|
||
|
||
/* The timezone table. */
|
||
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 */
|
||
{ "akst", tZONE, HOUR (10) }, /* Alaska Standard */
|
||
{ "akdt", tZONE, HOUR (10) }, /* Alaska Daylight */
|
||
{ "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 */
|
||
{ "cest", tDAYZONE, -HOUR (1) }, /* Central European Summer */
|
||
{ "met", tZONE, -HOUR (1) }, /* Middle European */
|
||
{ "mewt", tZONE, -HOUR (1) }, /* Middle European Winter */
|
||
{ "mest", tDAYZONE, -HOUR (1) }, /* Middle European Summer */
|
||
{ "mesz", 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 Standard, 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, 0, 0 }
|
||
};
|
||
|
||
/* 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", tTZONE, HOUR ( 7) },
|
||
{ "u", tZONE, HOUR ( 8) },
|
||
{ "v", tZONE, HOUR ( 9) },
|
||
{ "w", tWZONE, HOUR ( 10) },
|
||
{ "x", tZONE, HOUR ( 11) },
|
||
{ "y", tZONE, HOUR ( 12) },
|
||
{ "z", tZZONE, HOUR ( 0) },
|
||
{ NULL, 0, 0 }
|
||
};
|
||
|
||
|
||
|
||
|
||
/* ARGSUSED */
|
||
static int
|
||
yyerror (s)
|
||
char *s ATTRIBUTE_UNUSED;
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
static int
|
||
ToHour (Hours, Meridian)
|
||
int Hours;
|
||
MERIDIAN Meridian;
|
||
{
|
||
switch (Meridian)
|
||
{
|
||
case MER24:
|
||
if (Hours < 0 || Hours > 23)
|
||
return -1;
|
||
return Hours;
|
||
case MERam:
|
||
if (Hours < 1 || Hours > 12)
|
||
return -1;
|
||
if (Hours == 12)
|
||
Hours = 0;
|
||
return Hours;
|
||
case MERpm:
|
||
if (Hours < 1 || Hours > 12)
|
||
return -1;
|
||
if (Hours == 12)
|
||
Hours = 0;
|
||
return Hours + 12;
|
||
default:
|
||
abort ();
|
||
}
|
||
/* NOTREACHED */
|
||
}
|
||
|
||
static int
|
||
ToYear (Year)
|
||
int Year;
|
||
{
|
||
if (Year < 0)
|
||
Year = -Year;
|
||
|
||
/* XPG4 suggests that years 00-68 map to 2000-2068, and
|
||
years 69-99 map to 1969-1999. */
|
||
if (Year < 69)
|
||
Year += 2000;
|
||
else if (Year < 100)
|
||
Year += 1900;
|
||
|
||
return Year;
|
||
}
|
||
|
||
static int
|
||
LookupWord (lvalp,buff)
|
||
YYSTYPE *lvalp;
|
||
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 ((unsigned char) *p))
|
||
*p = tolower (*p);
|
||
|
||
if (strcmp (buff, "am") == 0 || strcmp (buff, "a.m.") == 0)
|
||
{
|
||
lvalp->Meridian = MERam;
|
||
return tMERIDIAN;
|
||
}
|
||
if (strcmp (buff, "pm") == 0 || strcmp (buff, "p.m.") == 0)
|
||
{
|
||
lvalp->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)
|
||
{
|
||
lvalp->Number = tp->value;
|
||
return tp->type;
|
||
}
|
||
}
|
||
else if (strcmp (buff, tp->name) == 0)
|
||
{
|
||
lvalp->Number = tp->value;
|
||
return tp->type;
|
||
}
|
||
}
|
||
|
||
for (tp = TimezoneTable; tp->name; tp++)
|
||
if (strcmp (buff, tp->name) == 0)
|
||
{
|
||
lvalp->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)
|
||
{
|
||
lvalp->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)
|
||
{
|
||
lvalp->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)
|
||
{
|
||
lvalp->Number = tp->value;
|
||
return tp->type;
|
||
}
|
||
|
||
/* Military timezones. */
|
||
if (buff[1] == '\0' && ISALPHA ((unsigned char) *buff))
|
||
{
|
||
for (tp = MilitaryTable; tp->name; tp++)
|
||
if (strcmp (buff, tp->name) == 0)
|
||
{
|
||
lvalp->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)
|
||
{
|
||
lvalp->Number = tp->value;
|
||
return tp->type;
|
||
}
|
||
|
||
return tID;
|
||
}
|
||
|
||
int yylex (YYSTYPE *lvalp, void *parm)
|
||
{
|
||
register unsigned char c;
|
||
register char *p;
|
||
char buff[20];
|
||
int Count;
|
||
int sign;
|
||
struct date_yy * date = (struct date_yy *)parm;
|
||
|
||
for (;;)
|
||
{
|
||
while (ISSPACE ((unsigned char) *date->yyInput))
|
||
date->yyInput++;
|
||
|
||
if (ISDIGIT (c = *date->yyInput) || c == '-' || c == '+')
|
||
{
|
||
if (c == '-' || c == '+')
|
||
{
|
||
sign = c == '-' ? -1 : 1;
|
||
if (!ISDIGIT (*++date->yyInput))
|
||
/* skip the '-' sign */
|
||
continue;
|
||
}
|
||
else
|
||
sign = 0;
|
||
for (lvalp->Number = 0; ISDIGIT (c = *date->yyInput++);)
|
||
lvalp->Number = 10 * lvalp->Number + c - '0';
|
||
date->yyInput--;
|
||
if (sign < 0)
|
||
lvalp->Number = -lvalp->Number;
|
||
/* Ignore ordinal suffixes on numbers */
|
||
c = *date->yyInput;
|
||
if (c == 's' || c == 'n' || c == 'r' || c == 't') {
|
||
c = *++date->yyInput;
|
||
if (c == 't' || c == 'd' || c == 'h') {
|
||
date->yyInput++;
|
||
} else {
|
||
date->yyInput--;
|
||
}
|
||
}
|
||
return sign ? tSNUMBER : tUNUMBER;
|
||
}
|
||
if (ISALPHA (c))
|
||
{
|
||
for (p = buff; (c = *date->yyInput++, ISALPHA (c)) || c == '.';)
|
||
if (p < &buff[sizeof buff - 1])
|
||
*p++ = c;
|
||
*p = '\0';
|
||
date->yyInput--;
|
||
return LookupWord (lvalp, buff);
|
||
}
|
||
if (c != '(')
|
||
return *date->yyInput++;
|
||
Count = 0;
|
||
do
|
||
{
|
||
c = *date->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 (struct tm *a, struct tm *b)
|
||
{
|
||
int ay = a->tm_year + (TM_YEAR_ORIGIN - 1);
|
||
int by = b->tm_year + (TM_YEAR_ORIGIN - 1);
|
||
long 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 php_parse_date(char *p, time_t *now)
|
||
{
|
||
struct tm tm, tm0, *tmp;
|
||
time_t Start;
|
||
struct date_yy date;
|
||
|
||
date.yyInput = p;
|
||
Start = now ? *now : time ((time_t *) NULL);
|
||
tmp = localtime (&Start);
|
||
if (!tmp)
|
||
return -1;
|
||
date.yyYear = tmp->tm_year + TM_YEAR_ORIGIN;
|
||
date.yyMonth = tmp->tm_mon + 1;
|
||
date.yyDay = tmp->tm_mday;
|
||
date.yyHour = tmp->tm_hour;
|
||
date.yyMinutes = tmp->tm_min;
|
||
date.yySeconds = tmp->tm_sec;
|
||
tm.tm_isdst = tmp->tm_isdst;
|
||
date.yyMeridian = MER24;
|
||
date.yyRelSeconds = 0;
|
||
date.yyRelMinutes = 0;
|
||
date.yyRelHour = 0;
|
||
date.yyRelDay = 0;
|
||
date.yyRelMonth = 0;
|
||
date.yyRelYear = 0;
|
||
date.yyHaveDate = 0;
|
||
date.yyHaveDay = 0;
|
||
date.yyHaveRel = 0;
|
||
date.yyHaveTime = 0;
|
||
date.yyHaveZone = 0;
|
||
|
||
if (yyparse ((void *)&date)
|
||
|| date.yyHaveTime > 1 || date.yyHaveZone > 1
|
||
|| date.yyHaveDate > 1 || date.yyHaveDay > 1) {
|
||
return -1;
|
||
}
|
||
tm.tm_year = ToYear (date.yyYear) - TM_YEAR_ORIGIN + date.yyRelYear;
|
||
tm.tm_mon = date.yyMonth - 1 + date.yyRelMonth;
|
||
tm.tm_mday = date.yyDay + date.yyRelDay;
|
||
if (date.yyHaveTime || (date.yyHaveRel && !date.yyHaveDate && !date.yyHaveDay))
|
||
{
|
||
tm.tm_hour = ToHour (date.yyHour, date.yyMeridian);
|
||
if (tm.tm_hour < 0)
|
||
return -1;
|
||
tm.tm_min = date.yyMinutes;
|
||
tm.tm_sec = date.yySeconds;
|
||
}
|
||
else
|
||
{
|
||
tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
|
||
}
|
||
tm.tm_hour += date.yyRelHour;
|
||
tm.tm_min += date.yyRelMinutes;
|
||
tm.tm_sec += date.yyRelSeconds;
|
||
|
||
/* Let mktime deduce tm_isdst if we have an absolute timestamp,
|
||
or if the relative timestamp mentions days, months, or years. */
|
||
if (date.yyHaveDate | date.yyHaveDay | date.yyHaveTime | date.yyRelDay | date.yyRelMonth | date.yyRelYear)
|
||
tm.tm_isdst = -1;
|
||
|
||
tm0 = tm;
|
||
|
||
Start = mktime (&tm);
|
||
|
||
if (Start == (time_t) -1)
|
||
{
|
||
|
||
/* Guard against falsely reporting errors near the time_t boundaries
|
||
when parsing times in other time zones. For example, if the min
|
||
time_t value is 1970-01-01 00:00:00 UTC and we are 8 hours ahead
|
||
of UTC, then the min localtime value is 1970-01-01 08:00:00; if
|
||
we apply mktime to 1970-01-01 00:00:00 we will get an error, so
|
||
we apply mktime to 1970-01-02 08:00:00 instead and adjust the time
|
||
zone by 24 hours to compensate. This algorithm assumes that
|
||
there is no DST transition within a day of the time_t boundaries. */
|
||
if (date.yyHaveZone)
|
||
{
|
||
tm = tm0;
|
||
if (tm.tm_year <= EPOCH - TM_YEAR_ORIGIN)
|
||
{
|
||
tm.tm_mday++;
|
||
date.yyTimezone -= 24 * 60;
|
||
}
|
||
else
|
||
{
|
||
tm.tm_mday--;
|
||
date.yyTimezone += 24 * 60;
|
||
}
|
||
Start = mktime (&tm);
|
||
}
|
||
|
||
if (Start == (time_t) -1)
|
||
return Start;
|
||
}
|
||
|
||
if (date.yyHaveDay && !date.yyHaveDate)
|
||
{
|
||
tm.tm_mday += ((date.yyDayNumber - tm.tm_wday + 7) % 7
|
||
+ 7 * (date.yyDayOrdinal - (0 < date.yyDayOrdinal)));
|
||
Start = mktime (&tm);
|
||
if (Start == (time_t) -1)
|
||
return Start;
|
||
}
|
||
|
||
if (date.yyHaveZone)
|
||
{
|
||
long delta;
|
||
struct tm *gmt = gmtime (&Start);
|
||
if (!gmt)
|
||
return -1;
|
||
delta = date.yyTimezone * 60L + difftm (&tm, gmt);
|
||
|
||
if ((Start + delta < Start) != (delta < 0))
|
||
return -1; /* time_t overflow */
|
||
Start += delta;
|
||
}
|
||
|
||
return Start;
|
||
}
|