HTMLPurifier_ConfigSchema::addAlias PHP Method

    public function addAlias($key, $new_key)
    {
        $obj = new stdclass();
        $obj->key = $new_key;
        $obj->isAlias = true;
        $this->info[$key] = $obj;
    }

 public function build($interchange)
 {
     $schema = new HTMLPurifier_ConfigSchema();
     foreach ($interchange->directives as $d) {
         $schema->add($d->id->key, $d->default, $d->type, $d->typeAllowsNull);
         if ($d->allowed !== NULL) {
             $schema->addAllowedValues($d->id->key, $d->allowed);
         }
         foreach ($d->aliases as $alias) {
             $schema->addAlias($alias->key, $d->id->key);
         }
         if ($d->valueAliases !== NULL) {
             $schema->addValueAliases($d->id->key, $d->valueAliases);
         }
     }
     $schema->postProcess();
     return $schema;
 }