Remove trailing whitespace.

Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>

library/HTMLPurifier/AttrValidator.php

@@ -7,7 +7,7 @@
  */
 class HTMLPurifier_AttrValidator
 {
-    
+
     /**
      * Validates the attributes of a token, returning a modified token
      * that has valid tokens
@@ -19,33 +19,33 @@ class HTMLPurifier_AttrValidator
      * @param $context Instance of HTMLPurifier_Context
      */
     public function validateToken(&$token, &$config, $context) {
-            
+
         $definition = $config->getHTMLDefinition();
         $e =& $context->get('ErrorCollector', true);
-        
+
         // initialize IDAccumulator if necessary
         $ok =& $context->get('IDAccumulator', true);
         if (!$ok) {
             $id_accumulator = HTMLPurifier_IDAccumulator::build($config, $context);
             $context->register('IDAccumulator', $id_accumulator);
         }
-        
+
         // initialize CurrentToken if necessary
         $current_token =& $context->get('CurrentToken', true);
         if (!$current_token) $context->register('CurrentToken', $token);
-        
+
         if (
             !$token instanceof HTMLPurifier_Token_Start &&
             !$token instanceof HTMLPurifier_Token_Empty
         ) return $token;
-        
+
         // create alias to global definition array, see also $defs
         // DEFINITION CALL
         $d_defs = $definition->info_global_attr;
-        
+
         // don't update token until the very end, to ensure an atomic update
         $attr = $token->attr;
-        
+
         // do global transformations (pre)
         // nothing currently utilizes this
         foreach ($definition->info_attr_transform_pre as $transform) {
@@ -54,7 +54,7 @@ class HTMLPurifier_AttrValidator
                 if ($attr != $o) $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
             }
         }
-        
+
         // do local transformations only applicable to this element (pre)
         // ex. <p align="right"> to <p style="text-align:right;">
         foreach ($definition->info[$token->name]->attr_transform_pre as $transform) {
@@ -63,19 +63,19 @@ class HTMLPurifier_AttrValidator
                 if ($attr != $o) $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
             }
         }
-        
+
         // create alias to this element's attribute definition array, see
         // also $d_defs (global attribute definition array)
         // DEFINITION CALL
         $defs = $definition->info[$token->name]->attr;
-        
+
         $attr_key = false;
         $context->register('CurrentAttr', $attr_key);
-        
+
         // iterate through all the attribute keypairs
         // Watch out for name collisions: $key has previously been used
         foreach ($attr as $attr_key => $value) {
-            
+
             // call the definition
             if ( isset($defs[$attr_key]) ) {
                 // there is a local definition defined
@@ -102,37 +102,37 @@ class HTMLPurifier_AttrValidator
                 // system never heard of the attribute? DELETE!
                 $result = false;
             }
-            
+
             // put the results into effect
             if ($result === false || $result === null) {
                 // this is a generic error message that should replaced
                 // with more specific ones when possible
                 if ($e) $e->send(E_ERROR, 'AttrValidator: Attribute removed');
-                
+
                 // remove the attribute
                 unset($attr[$attr_key]);
             } elseif (is_string($result)) {
                 // generally, if a substitution is happening, there
                 // was some sort of implicit correction going on. We'll
                 // delegate it to the attribute classes to say exactly what.
-                
+
                 // simple substitution
                 $attr[$attr_key] = $result;
             } else {
                 // nothing happens
             }
-            
+
             // we'd also want slightly more complicated substitution
             // involving an array as the return value,
             // although we're not sure how colliding attributes would
             // resolve (certain ones would be completely overriden,
             // others would prepend themselves).
         }
-        
+
         $context->destroy('CurrentAttr');
-        
+
         // post transforms
-        
+
         // global (error reporting untested)
         foreach ($definition->info_attr_transform_post as $transform) {
             $attr = $transform->transform($o = $attr, $config, $context);
@@ -140,7 +140,7 @@ class HTMLPurifier_AttrValidator
                 if ($attr != $o) $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
             }
         }
-        
+
         // local (error reporting untested)
         foreach ($definition->info[$token->name]->attr_transform_post as $transform) {
             $attr = $transform->transform($o = $attr, $config, $context);
@@ -148,14 +148,14 @@ class HTMLPurifier_AttrValidator
                 if ($attr != $o) $e->send(E_NOTICE, 'AttrValidator: Attributes transformed', $o, $attr);
             }
         }
-        
+
         $token->attr = $attr;
-        
+
         // destroy CurrentToken if we made it ourselves
         if (!$current_token) $context->destroy('CurrentToken');
-        
+
     }
-    
-    
+
+
 }