File indexing completed on 2024-05-05 06:02:15

 <?php
 
 /**
  * Defines allowed child nodes and validates nodes against it.
  */
 abstract class HTMLPurifier_ChildDef
 {
     /**
      * Type of child definition, usually right-most part of class name lowercase.
      * Used occasionally in terms of context.
      * @type string
      */
     public $type;
 
     /**
      * Indicates whether or not an empty array of children is okay.
      *
      * This is necessary for redundant checking when changes affecting
      * a child node may cause a parent node to now be disallowed.
      * @type bool
      */
     public $allow_empty;
 
     /**
      * Lookup array of all elements that this definition could possibly allow.
      * @type array
      */
     public $elements = array();
 
     /**
      * Get lookup of tag names that should not close this element automatically.
      * All other elements will do so.
      * @param HTMLPurifier_Config $config HTMLPurifier_Config object
      * @return array
      */
     public function getAllowedElements($config)
     {
         return $this->elements;
     }
 
     /**
      * Validates nodes according to definition and returns modification.
      *
      * @param HTMLPurifier_Node[] $children Array of HTMLPurifier_Node
      * @param HTMLPurifier_Config $config HTMLPurifier_Config object
      * @param HTMLPurifier_Context $context HTMLPurifier_Context object
      * @return bool|array true to leave nodes as is, false to remove parent node, array of replacement children
      */
     abstract public function validateChildren($children, $config, $context);
 }
 
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