/**
* date.php
*
- * Copyright (c) 1999-2002 The SquirrelMail Project Team
+ * Copyright (c) 1999-2003 The SquirrelMail Project Team
* Licensed under the GNU GPL. For full terms see the file COPYING.
*
* Takes a date and parses it into a usable format. The form that a
require_once(SM_PATH . 'functions/constants.php');
/* corrects a time stamp to be the local time */
-function getGMTSeconds($stamp, $gmt) {
- global $invert_time;
-
+function getGMTSeconds($stamp, $tzc) {
/* date couldn't be parsed */
if ($stamp == -1) {
return -1;
}
-
- switch($gmt)
+ /* timezone correction, expressed as `shhmm' */
+ switch($tzc)
{
case 'Pacific':
case 'PST':
- $gmt = '-0800';
+ $tzc = '-0800';
break;
case 'Mountain':
case 'MST':
case 'PDT':
- $gmt = '-0700';
+ $tzc = '-0700';
break;
case 'Central':
case 'CST':
case 'MDT':
- $gmt = '-0600';
+ $tzc = '-0600';
break;
case 'Eastern':
case 'EST':
case 'CDT':
- $gmt = '-0500';
+ $tzc = '-0500';
break;
case 'EDT':
- $gmt = '-0400';
+ $tzc = '-0400';
break;
case 'GMT':
- $gmt = '+0000';
+ $tzc = '+0000';
break;
case 'BST':
- case 'MET':
- $gmt = '+0100';
+ case 'MET':
+ case 'CET':
+ $tzc = '+0100';
+ break;
case 'EET':
case 'IST':
case 'MET DST':
case 'METDST':
- $gmt = '+0200';
+ $tzc = '+0200';
break;
case 'HKT':
- $gmt = '+0800';
+ $tzc = '+0800';
break;
case 'JST':
case 'KST':
- $gmt = '+0900';
+ $tzc = '+0900';
break;
}
-
- if (substr($gmt, 0, 1) == '-') {
+ $neg = false;
+ if (substr($tzc, 0, 1) == '-') {
$neg = true;
- $gmt = substr($gmt, 1, strlen($gmt));
- } else if (substr($gmt, 0, 1) == '+') {
- $neg = false;
- $gmt = substr($gmt, 1, strlen($gmt));
- } else {
- $neg = false;
+ } else if (substr($tzc, 0, 1) != '+') {
+ $tzc = '+'.$tzc;
}
-
- $difference = substr($gmt, 2, 2);
- $gmt = substr($gmt, 0, 2);
- $gmt = ($gmt + ($difference / 60)) * 3600;
- if ($neg) {
- $gmt = "-$gmt";
- } else {
- $gmt = "+$gmt";
- }
-
+ $hh = substr($tzc,1,2);
+ $mm = substr($tzc,3,2);
+ $iTzc = ($hh * 60 + $mm) * 60;
+ if ($neg) $iTzc = -1 * (int) $iTzc;
+ /* stamp in gmt */
+ $stamp -= $iTzc;
/** now find what the server is at **/
$current = date('Z', time());
- if ($invert_time) {
- $current = - $current;
- }
- $stamp = (int)$stamp - (int)$gmt + (int)$current;
+ /* stamp in local timezone */
+ $stamp += $current;
return $stamp;
}
return( $ret );
}
+function getDayAbrv( $day_number ) {
+
+ switch( $day_number ) {
+ case 0:
+ $ret = _("Sun");
+ break;
+ case 1:
+ $ret = _("Mon");
+ break;
+ case 2:
+ $ret = _("Tue");
+ break;
+ case 3:
+ $ret = _("Wed");
+ break;
+ case 4:
+ $ret = _("Thu");
+ break;
+ case 5:
+ $ret = _("Fri");
+ break;
+ case 6:
+ $ret = _("Sat");
+ break;
+ default:
+ $ret = '';
+ }
+ return( $ret );
+}
+
function getMonthName( $month_number ) {
switch( $month_number ) {
case '01':
return( $ret );
}
+function getMonthAbrv( $month_number ) {
+ switch( $month_number ) {
+ case '01':
+ $ret = _("Jan");
+ break;
+ case '02':
+ $ret = _("Feb");
+ break;
+ case '03':
+ $ret = _("Mar");
+ break;
+ case '04':
+ $ret = _("Apr");
+ break;
+ case '05':
+ $ret = _("May");
+ break;
+ case '06':
+ $ret = _("Jun");
+ break;
+ case '07':
+ $ret = _("Jul");
+ break;
+ case '08':
+ $ret = _("Aug");
+ break;
+ case '09':
+ $ret = _("Sep");
+ break;
+ case '10':
+ $ret = _("Oct");
+ break;
+ case '11':
+ $ret = _("Nov");
+ break;
+ case '12':
+ $ret = _("Dec");
+ break;
+ default:
+ $ret = '';
+ }
+ return( $ret );
+}
+
+
function date_intl( $date_format, $stamp ) {
$ret = str_replace( 'D', '$1', $date_format );
$ret = str_replace( 'l', '$4', $ret );
$ret = str_replace( 'M', '$5', $ret );
$ret = date( '$3'. $ret . '$3', $stamp ); // Workaround for a PHP 4.0.4 problem
- $ret = str_replace( '$1', substr( getDayName( date( 'w', $stamp ) ), 0, 3 ), $ret );
- $ret = str_replace( '$5', substr( getMonthName( date( 'm', $stamp ) ), 0, 3 ), $ret );
+ $ret = str_replace( '$1', getDayAbrv( date( 'w', $stamp ) ), $ret );
+ $ret = str_replace( '$5', getMonthAbrv( date( 'm', $stamp ) ), $ret );
$ret = str_replace( '$2', getMonthName( date( 'm', $stamp ) ), $ret );
$ret = str_replace( '$4', getDayName( date( 'w', $stamp ) ), $ret );
$ret = str_replace( '$3', '', $ret );
** In that case, dateParts[0] would be the <day of month>
** and everything would be bumped up one.
**/
-
+
/*
* Simply check to see if the first element in the dateParts
* array is an integer or not.
* Since the day of week is optional, this check is needed.
*/
+ if (count($dateParts) <2) {
+ return 0;
+ }
- /* validate zone before we uses strtotime */
- if (isset($dateParts[6]) && $dateParts[6] && $dateParts[6]{0} != '(') {
- $dateParts[6] = '('.$dateParts[6].')';
- }
- $string = implode (' ', $dateParts);
-
- if (! isset($dateParts[4])) {
- $dateParts[4] = '';
+ /* remove day of week */
+ if (!is_numeric(trim($dateParts[0]))) {
+ $dataParts = array_shift($dateParts);
}
- if (! isset($dateParts[5])) {
- $dateParts[5] = '';
+ /* calculate timestamp separated from the zone and obs-zone */
+ $stamp = strtotime(implode (' ', array_splice ($dateParts,0,4)));
+ if (!isset($dateParts[0])) {
+ $dateParts[0] = '+0000';
}
- if (intval(trim($dateParts[0])) > 0) {
- return getGMTSeconds(strtotime($string), $dateParts[4]);
+ if (!preg_match('/^[+-]{1}[0-9]{4}$/',$dateParts[0])) {
+ /* zone in obs-zone format */
+ if (preg_match('/\((.+)\)/',$dateParts[0],$regs)) {
+ $obs_zone = $regs[1];
+ } else {
+ $obs_zone = $dateParts[0];
+ }
+ return getGMTSeconds($stamp, $obs_zone);
+ } else {
+ return getGMTSeconds($stamp, $dateParts[0]);
}
- return getGMTSeconds(strtotime($string), $dateParts[5]);
}
/* I use this function for profiling. Should never be called in
projects / squirrelmail.git / blobdiff