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https://github.com/renbaoshuo/S2OJ.git
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58 lines
1.6 KiB
PHP
58 lines
1.6 KiB
PHP
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<?php
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/**
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* Component of HTMLPurifier_AttrContext that accumulates IDs to prevent dupes
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* @note In Slashdot-speak, dupe means duplicate.
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* @note The default constructor does not accept $config or $context objects:
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* use must use the static build() factory method to perform initialization.
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*/
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class HTMLPurifier_IDAccumulator
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{
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/**
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* Lookup table of IDs we've accumulated.
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* @public
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*/
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public $ids = array();
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/**
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* Builds an IDAccumulator, also initializing the default blacklist
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* @param HTMLPurifier_Config $config Instance of HTMLPurifier_Config
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* @param HTMLPurifier_Context $context Instance of HTMLPurifier_Context
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* @return HTMLPurifier_IDAccumulator Fully initialized HTMLPurifier_IDAccumulator
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*/
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public static function build($config, $context)
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{
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$id_accumulator = new HTMLPurifier_IDAccumulator();
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$id_accumulator->load($config->get('Attr.IDBlacklist'));
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return $id_accumulator;
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}
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/**
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* Add an ID to the lookup table.
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* @param string $id ID to be added.
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* @return bool status, true if success, false if there's a dupe
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*/
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public function add($id)
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{
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if (isset($this->ids[$id])) {
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return false;
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}
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return $this->ids[$id] = true;
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}
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/**
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* Load a list of IDs into the lookup table
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* @param $array_of_ids Array of IDs to load
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* @note This function doesn't care about duplicates
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*/
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public function load($array_of_ids)
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{
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foreach ($array_of_ids as $id) {
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$this->ids[$id] = true;
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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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