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+%{
+/*
+ * Imported from the public domain source in PHP 4.4
+ * Fri May 20 07:14:01 2005
+ * https://github.com/php/php-src/blob/379c4af44aa6456fbdbc69dba3ead166ba7ff67d/ext/standard/parsedate.y
+ *
+ * and patched from there
+ *
+ * Later versions removed this from PHP and replaced it with entirely
+ * new code written under the PHP license. That code is not used here
+ * and cannot be used.
+ *
+ */
+
+
+/*
+** Originally written by Steven M. Bellovin <smb@research.att.com> while
+** at the University of North Carolina at Chapel Hill. Later tweaked by
+** a couple of people on Usenet. Completely overhauled by Rich $alz
+** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990.
+**
+** This code is in the public domain and has no copyright.
+*/
+
+
+#ifdef HAVE_CONFIG_H
+#include <raptor_config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <ctype.h>
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#if defined(_HPUX_SOURCE)
+#include <alloca.h>
+#endif
+
+#include "raptor2.h"
+#include "raptor_internal.h"
+
+
+#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
+
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif
+
+#if !defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __attribute__(x)
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+/* Some old versions of bison generate parsers that use bcopy.
+ That loses on systems that don't provide the function, so we have
+ to redefine it here. */
+#if !defined (HAVE_BCOPY) && defined (HAVE_MEMCPY) && !defined (bcopy)
+# define bcopy(from, to, len) memcpy ((to), (from), (len))
+#endif
+
+/* Prototypes */
+static int raptor_parsedate_error(void* parm, const char *msg);
+
+
+#define EPOCH 1970
+#define HOUR(x) ((x) * 60)
+
+#define MAX_BUFF_LEN 128 /* size of buffer to read the date into */
+
+/*
+** An entry in the lexical lookup table.
+*/
+typedef struct _TABLE {
+ const char *name;
+ int type;
+ int value;
+} TABLE;
+
+
+/*
+** Meridian: am, pm, or 24-hour style.
+*/
+typedef enum _MERIDIAN {
+ MERam, MERpm, MER24
+} MERIDIAN;
+
+struct date_yy {
+ const char *yyInput;
+ int yyDayOrdinal;
+ int yyDayNumber;
+ int yyHaveDate;
+ int yyHaveDay;
+ int yyHaveRel;
+ int yyHaveTime;
+ int yyHaveZone;
+ int yyTimezone;
+ int yyDay;
+ int yyHour;
+ int yyMinutes;
+ int yyMonth;
+ int yySeconds;
+ int yyYear;
+ MERIDIAN yyMeridian;
+ int yyRelDay;
+ int yyRelHour;
+ int yyRelMinutes;
+ int yyRelMonth;
+ int yyRelSeconds;
+ int yyRelYear;
+};
+
+typedef union _date_ll {
+ int Number;
+ enum _MERIDIAN Meridian;
+} date_ll;
+
+#define YYPARSE_PARAM parm
+#define YYLEX_PARAM parm
+#define YYSTYPE date_ll
+#define YYLTYPE void
+
+static int yylex (YYSTYPE *lvalp, void *parm);
+
+static int ToHour (int Hours, MERIDIAN Meridian);
+static int ToYear (int Year);
+static int LookupWord (YYSTYPE *lvalp, char *buff);
+
+%}
+
+/* directives */
+
+%require "3.0"
+
+/* File prefix (bison -b) */
+%file-prefix "parsedate"
+
+/* Symbol prefix (bison -d : deprecated) */
+%define api.prefix {raptor_parsedate_}
+
+/* Write parser header file with macros (bison -d) */
+%defines
+
+/* Write output file with verbose descriptions of parser states */
+%verbose
+
+%define api.pure true
+
+/* This grammar has 56 shift/reduce conflicts. */
+%expect 56
+
+%param { struct date_yy *parm }
+
+%token tAGO tDAY tDAY_UNIT tDAYZONE tDST tHOUR_UNIT tID tTZONE tWZONE tZZONE
+%token tMERIDIAN tMINUTE_UNIT tMONTH tMONTH_UNIT
+%token tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE
+
+%type <Number> tDAY tDAY_UNIT tDAYZONE tHOUR_UNIT tMINUTE_UNIT
+%type <Number> tMONTH tMONTH_UNIT
+%type <Number> tSEC_UNIT tSNUMBER tUNUMBER tYEAR_UNIT tZONE tTZONE tWZONE tZZONE
+%type <Meridian> tMERIDIAN
+
+%%
+
+spec : /* NULL */
+ | spec item
+ ;
+
+item : time {
+ ((struct date_yy *)parm)->yyHaveTime++;
+ }
+ | zone {
+ ((struct date_yy *)parm)->yyHaveZone++;
+ }
+ | date {
+ ((struct date_yy *)parm)->yyHaveDate++;
+ }
+ | day {
+ ((struct date_yy *)parm)->yyHaveDay++;
+ }
+ | rel {
+ ((struct date_yy *)parm)->yyHaveRel++;
+ }
+ | number
+ | o_merid
+ ;
+
+time : tUNUMBER tMERIDIAN {
+ ((struct date_yy *)parm)->yyHour = $1;
+ ((struct date_yy *)parm)->yyMinutes = 0;
+ ((struct date_yy *)parm)->yySeconds = 0;
+ ((struct date_yy *)parm)->yyMeridian = $2;
+ }
+ | iso8601time_colon
+ /* | pgsqltime ... shares a common spec with ISO8601 */
+ ;
+
+iso8601time_colon: HMStime_with_colon sec_fraction_part rel {
+ ((struct date_yy *)parm)->yyMeridian = MER24;
+ }
+ | HMtime_with_colon sec_fraction_part rel {
+ ((struct date_yy *)parm)->yyMeridian = MER24;
+ ((struct date_yy *)parm)->yySeconds = 0;
+ }
+ | HMStime_with_colon sec_fraction_part iso8601zonepart {
+ ((struct date_yy *)parm)->yyMeridian = MER24;
+ }
+ | HMtime_with_colon sec_fraction_part iso8601zonepart {
+ ((struct date_yy *)parm)->yyMeridian = MER24;
+ ((struct date_yy *)parm)->yySeconds = 0;
+ }
+ ;
+
+iso8601zonepart: zonepart_numeric_without_colon {
+ ((struct date_yy *)parm)->yyHaveZone++;
+ }
+ | zonepart_numeric_with_colon {
+ ((struct date_yy *)parm)->yyHaveZone++;
+ }
+ | zone {
+ ((struct date_yy *)parm)->yyHaveZone++;
+ }
+ | /* empty */
+ ;
+
+sec_fraction_part: '.' tUNUMBER {
+ }
+ | /* empty */
+ ;
+
+zonepart_numeric_without_colon: tSNUMBER {
+ /* format: [+-]hhmm */
+ if($1 <= -100 || $1 >= 100) {
+ ((struct date_yy *)parm)->yyTimezone = (-$1 / 100) * 60 + (-$1 % 100);
+ } else if($1 >= -99 && $1 <= 99) {
+ ((struct date_yy *)parm)->yyTimezone = -$1 * 60;
+ }
+ }
+ ;
+
+zonepart_numeric_with_colon: tSNUMBER ':' tUNUMBER {
+ /* format: [+-]hh:mm */
+ ((struct date_yy *)parm)->yyTimezone = -$1 * 60 + ($1 > 0 ? -$3: $3);
+ }
+ ;
+
+HMStime_with_colon: HMtime_with_colon ':' tUNUMBER {
+ /* format: hh:mm:ss */
+ ((struct date_yy *)parm)->yySeconds = $3;
+ }
+ ;
+
+HMtime_with_colon: tUNUMBER ':' tUNUMBER {
+ /* format: hh:mm */
+ ((struct date_yy *)parm)->yyHour = $1;
+ ((struct date_yy *)parm)->yyMinutes = $3;
+ }
+ ;
+
+
+ /* we have to deal with a special case for the datetime format
+ of XML Schema here: '2003-11-18T22:40:00Z'
+ the combination of a 'T' timezone specifier later followed
+ by a 'Z' is now recognized and allowed
+ TODO: change the grammer so that the exact positions are checked
+ right now '2003-11-18 22:40:00 TZ' is also accepted (hartmut)
+ */
+
+zone : tTZONE {
+ ((struct date_yy *)parm)->yyTimezone = $1;
+ }
+ | tWZONE {
+ ((struct date_yy *)parm)->yyTimezone = $1;
+ }
+ | tZZONE {
+ ((struct date_yy *)parm)->yyTimezone = $1;
+ }
+ | tZONE {
+ ((struct date_yy *)parm)->yyTimezone = $1;
+ }
+ | tDAYZONE {
+ ((struct date_yy *)parm)->yyTimezone = $1 - 60;
+ }
+ | tZONE tDST {
+ ((struct date_yy *)parm)->yyTimezone = $1 - 60;
+ }
+ ;
+
+day : tDAY {
+ ((struct date_yy *)parm)->yyDayOrdinal = 1;
+ ((struct date_yy *)parm)->yyDayNumber = $1;
+ }
+ | tDAY ',' {
+ ((struct date_yy *)parm)->yyDayOrdinal = 1;
+ ((struct date_yy *)parm)->yyDayNumber = $1;
+ }
+ | tUNUMBER tDAY {
+ ((struct date_yy *)parm)->yyDayOrdinal = $1;
+ ((struct date_yy *)parm)->yyDayNumber = $2;
+ }
+ ;
+
+date : tUNUMBER '/' tUNUMBER {
+ ((struct date_yy *)parm)->yyMonth = $1;
+ ((struct date_yy *)parm)->yyDay = $3;
+ }
+ | tMONTH tUNUMBER tUNUMBER ':' tUNUMBER ':' tUNUMBER tUNUMBER {
+ ((struct date_yy *)parm)->yyYear = $8;
+ ((struct date_yy *)parm)->yyMonth = $1;
+ ((struct date_yy *)parm)->yyDay = $2;
+
+ ((struct date_yy *)parm)->yyHour = $3;
+ ((struct date_yy *)parm)->yyMinutes = $5;
+ ((struct date_yy *)parm)->yySeconds = $7;
+
+ ((struct date_yy *)parm)->yyHaveTime = 1;
+ }
+ | tUNUMBER '/' tUNUMBER '/' tUNUMBER {
+ /* Interpret as YYYY/MM/DD if $1 >= 1000, otherwise as MM/DD/YY.
+ The goal in recognizing YYYY/MM/DD is solely to support legacy
+ machine-generated dates like those in an RCS log listing. If
+ you want portability, use the ISO 8601 format. */
+ if($1 >= 1000)
+ {
+ ((struct date_yy *)parm)->yyYear = $1;
+ ((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
+ | iso8601datetime {
+ ((struct date_yy *)parm)->yyHaveTime++;
+ }
+ | tUNUMBER tMONTH tSNUMBER {
+ /* e.g. 17-JUN-1992. */
+ ((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 = i;
+ ((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);
+
+/* 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, 1 },
+ { "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(void* parm, const char *s)
+{
+ return 0;
+}
+
+static int
+ToHour(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:
+#ifdef RAPTOR_DEBUG
+ fprintf(stderr, "%s:%d:%s: UNKNOWN Meridian %d - add a new case",
+ __FILE__, __LINE__, __FUNCTION__, (int)Meridian);
+#endif
+ return -1;
+ }
+ /* NOTREACHED */
+}
+
+static int
+ToYear(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 (YYSTYPE *lvalp, char *buff)
+{
+ char *p;
+ char *q;
+ 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 = RAPTOR_BAD_CAST(int, 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)
+{
+ unsigned char c;
+ 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 raptor_parse_date(const 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 (&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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 19:16:07 +0000