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45 lines
1.2 KiB
45 lines
1.2 KiB
<?php |
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/** |
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* Definition that allows a set of elements, and allows no children. |
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* @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required, |
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* really, one shouldn't inherit from the other. Only altered behavior |
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* is to overload a returned false with an array. Thus, it will never |
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* return false. |
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*/ |
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class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required |
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{ |
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/** |
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* @type bool |
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*/ |
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public $allow_empty = true; |
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/** |
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* @type string |
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*/ |
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public $type = 'optional'; |
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/** |
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* @param array $children |
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* @param HTMLPurifier_Config $config |
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* @param HTMLPurifier_Context $context |
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* @return array |
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*/ |
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public function validateChildren($children, $config, $context) |
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{ |
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$result = parent::validateChildren($children, $config, $context); |
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// we assume that $children is not modified |
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if ($result === false) { |
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if (empty($children)) { |
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return true; |
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} elseif ($this->whitespace) { |
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return $children; |
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} else { |
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return array(); |
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} |
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} |
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return $result; |
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} |
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} |
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// vim: et sw=4 sts=4
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