<?php

/**
 * Definition that allows a set of elements, and allows no children.
 * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
 *       really, one shouldn't inherit from the other.  Only altered behavior
 *       is to overload a returned false with an array.  Thus, it will never
 *       return false.
 */
class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
{
    /** @type bool */
    public $allow_empty = true;

    /** @type string */
    public $type = 'optional';

    /**
     * @param array $children
     * @param HTMLPurifier_Config $config
     * @param HTMLPurifier_Context $context
     * @return array
     */
    public function validateChildren($children, $config, $context)
    {
        $result = parent::validateChildren($children, $config, $context);
        // we assume that $children is not modified
        if ($result === false) {
            if (empty($children)) {
                return true;
            } elseif ($this->whitespace) {
                return $children;
            } else {
                return array();
            }
        }
        return $result;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTc3NzEzMTcwOTUzMTgxNyAyODQ5OTQxNTU5Mzk2NzE5IDQzMjg1MDc4Nzk1Njg2NDA=