From a6f807f60a9abb544e44216ad7ef9df86a075290 Mon Sep 17 00:00:00 2001
From: Roland Gruber <post@rolandgruber.de>
Date: Sun, 26 Jul 2015 08:19:55 +0000
Subject: [PATCH] functions to shorten timestamps

---
 lam/lib/account.inc | 54 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

diff --git a/lam/lib/account.inc b/lam/lib/account.inc
index 56097a9e..ffe42ee9 100644
--- a/lam/lib/account.inc
+++ b/lam/lib/account.inc
@@ -575,7 +575,7 @@ function get_preg($argument, $regexp) {
 					$pregexpr = '/^[' . chr(1) . '-' . chr(128) . ']*$/';
 					break;
 		case 'objectClass':
-					$pregexpr = '/^[[:alnum:]_]+$/';
+					$pregexpr = '/^[[:alnum:]_-]+$/';
 					break;
 	}
 	if ($pregexpr!='')
@@ -1283,4 +1283,56 @@ function getTimeZone() {
 	return new DateTimeZone($timeZone);
 }
 
+/**
+ * Formats a number of seconds to a more human readable format with minutes, hours, etc.
+ * E.g. 70 seconds will return 1m10s.
+ *
+ * @param int $numSeconds number of seconds
+ * @return String formated number
+ */
+function formatSecondsToShortFormat($numSeconds) {
+	if (empty($numSeconds)) {
+		return '';
+	}
+	$seconds = $numSeconds % 60;
+	$seconds = ($seconds == 0) ? '' : $seconds . 's';
+	$minutes = floor(($numSeconds % 3600) / 60);
+	$minutes = ($minutes == 0) ? '' : $minutes . 'm';
+	$hours = floor(($numSeconds % 86400) / 3600);
+	$hours = ($hours == 0) ? '' : $hours . 'h';
+	$days = floor($numSeconds / 86400);
+	$days = ($days == 0) ? '' : $days . 'd';
+	return $days . $hours . $minutes . $seconds;
+}
+
+/**
+ * Unformats text like 1m10s back to number of seconds.
+ *
+ * @param String $text formatted text
+ * @return int number of seconds
+ */
+function unformatShortFormatToSeconds($text) {
+	if (empty($text)) {
+		return $text;
+	}
+	$matches = array();
+	if (preg_match('/^([0-9]+d)?([0-9]+h)?([0-9]+m)?([0-9]+s)?$/', $text, $matches)) {
+		$newValue = 0;
+		if (!empty($matches[1])) {
+			$newValue += $matches[1] * 86400;
+		}
+		if (!empty($matches[2])) {
+			$newValue += $matches[2] * 3600;
+		}
+		if (!empty($matches[3])) {
+			$newValue += $matches[3] * 60;
+		}
+		if (!empty($matches[4])) {
+			$newValue += $matches[4];
+		}
+		return $newValue;
+	}
+	return $text;
+}
+
 ?>