Implement MultiLength.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@173 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/AttrDef/MultiLength.php

@@ -0,0 +1,36 @@
+<?php
+
+require_once 'HTMLPurifier/AttrDef.php';
+require_once 'HTMLPurifier/AttrDef/Length.php';
+
+class HTMLPurifier_AttrDef_MultiLength extends HTMLPurifier_AttrDef_Length
+{
+    
+    function validate($string) {
+        
+        $string = trim($string);
+        if ($string === '') return false;
+        
+        $parent_result = parent::validate($string);
+        if ($parent_result !== false) return $parent_result;
+        
+        $length = strlen($string);
+        $last_char = $string[$length - 1];
+        
+        if ($last_char !== '*') return false;
+        
+        $int = substr($string, 0, $length - 1);
+        
+        if (!is_numeric($int)) return false;
+        
+        $int = (int) $int;
+        
+        if ($int < 0) return '0*';
+        
+        return ((string) $int) . '*';
+        
+    }
+    
+}
+
+?>