[1.5.0] AttrDef partitioned into HTML, CSS and URI segments. Also, some minor bugs with MultiLength fixed.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@747 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/AttrDef/CSS/TextDecoration.php

@@ -0,0 +1,41 @@
+<?php
+
+require_once 'HTMLPurifier/AttrDef.php';
+
+/**
+ * Validates the value for the CSS property text-decoration
+ * @note This class could be generalized into a version that acts sort of
+ *       like Enum except you can compound the allowed values.
+ */
+class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef
+{
+    
+    /**
+     * Lookup table of allowed values.
+     * @protected
+     */
+    var $allowed_values = array(
+        'line-through' => true,
+        'overline' => true,
+        'underline' => true
+    );
+    
+    function validate($string, $config, &$context) {
+        
+        $string = strtolower($this->parseCDATA($string));
+        $parts = explode(' ', $string);
+        $final = '';
+        foreach ($parts as $part) {
+            if (isset($this->allowed_values[$part])) {
+                $final .= $part . ' ';
+            }
+        }
+        $final = rtrim($final);
+        if ($final === '') return false;
+        return $final;
+        
+    }
+    
+}
+
+?>