[2.0.1] Implement haphazard error collection for AttrValidator.

- Error collector / Language can take arrays and listify them
- AttrValidator takes token by reference
- Formatted errors now have their severity <strong>
- 100 test-cases! W00t!

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1250 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Strategy/ValidateAttributes.php

@@ -27,6 +27,9 @@ class HTMLPurifier_Strategy_ValidateAttributes extends HTMLPurifier_Strategy
         // setup validator
         $validator = new HTMLPurifier_AttrValidator();
         
+        $token = false;
+        $context->register('CurrentToken', $token);
+        
         foreach ($tokens as $key => $token) {
             
             // only process tokens that have attributes,
@@ -36,7 +39,8 @@ class HTMLPurifier_Strategy_ValidateAttributes extends HTMLPurifier_Strategy
             // skip tokens that are armored
             if (!empty($token->armor['ValidateAttributes'])) continue;
             
-            $tokens[$key] = $validator->validateToken($token, $config, $context);
+            // note that we have no facilities here for removing tokens
+            $validator->validateToken($token, $config, $context);
         }
         
         $context->destroy('IDAccumulator');