Allow subsecond precision for ISO8601 durations.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2942 44740490-163a-0410-bde0-09ae8108e29a

lib/SimpleSAML/Utilities.php

@@ -389,7 +389,7 @@ class SimpleSAML_Utilities {
 		assert('is_null($timestamp) || is_int($timestamp)');
 
 		/* Parse the duration. We use a very strict pattern. */
-		$durationRegEx = '#^(-?)P(?:(?:(?:(\\d+)Y)?(?:(\\d+)M)?(?:(\\d+)D)?(?:T(?:(\\d+)H)?(?:(\\d+)M)?(?:(\\d+)S)?)?)|(?:(\\d+)W))$#D';
+		$durationRegEx = '#^(-?)P(?:(?:(?:(\\d+)Y)?(?:(\\d+)M)?(?:(\\d+)D)?(?:T(?:(\\d+)H)?(?:(\\d+)M)?(?:(\\d+)(?:[.,]\d+)?S)?)?)|(?:(\\d+)W))$#D';
 		if (!preg_match($durationRegEx, $duration, $matches)) {
 			throw new Exception('Invalid ISO 8601 duration: ' . $duration);
 		}