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https://github.com/renbaoshuo/S2OJ.git
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54 lines
1.3 KiB
PHP
54 lines
1.3 KiB
PHP
<?php
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/**
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* Decorator that, depending on a token, switches between two definitions.
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*/
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class HTMLPurifier_AttrDef_Switch
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{
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/**
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* @type string
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*/
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protected $tag;
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/**
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* @type HTMLPurifier_AttrDef
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*/
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protected $withTag;
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/**
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* @type HTMLPurifier_AttrDef
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*/
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protected $withoutTag;
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/**
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* @param string $tag Tag name to switch upon
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* @param HTMLPurifier_AttrDef $with_tag Call if token matches tag
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* @param HTMLPurifier_AttrDef $without_tag Call if token doesn't match, or there is no token
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*/
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public function __construct($tag, $with_tag, $without_tag)
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{
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$this->tag = $tag;
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$this->withTag = $with_tag;
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$this->withoutTag = $without_tag;
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}
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/**
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* @param string $string
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* @param HTMLPurifier_Config $config
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* @param HTMLPurifier_Context $context
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* @return bool|string
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*/
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public function validate($string, $config, $context)
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{
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$token = $context->get('CurrentToken', true);
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if (!$token || $token->name !== $this->tag) {
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return $this->withoutTag->validate($string, $config, $context);
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} else {
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return $this->withTag->validate($string, $config, $context);
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}
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}
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}
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// vim: et sw=4 sts=4
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