mirror of
https://github.com/ezyang/htmlpurifier.git
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37 lines
839 B
PHP
37 lines
839 B
PHP
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<?php
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require_once 'HTMLPurifier/AttrDef.php';
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require_once 'HTMLPurifier/IDAccumulator.php';
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class HTMLPurifier_AttrDef_ID extends HTMLPurifier_AttrDef
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{
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function validate($id, $accumulator) {
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$id = @ (string) $id; // sanity check
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if ($id === '') return false;
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if (isset($accumulator->ids[$id])) return false;
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// we purposely avoid using regex, hopefully this is faster
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if (ctype_alpha($id)) {
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$result = true;
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} else {
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if (!ctype_alpha(@$id[0])) return false;
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$trim = trim(
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$id,
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'A..Za..z0..9:-._'
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);
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$result = ($trim === '');
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}
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if ($result) $accumulator->add($id);
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return $result;
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}
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}
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?>
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