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314a48373c
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@308 48356398-32a2-884e-a903-53898d9a118a
47 lines
1.3 KiB
PHP
47 lines
1.3 KiB
PHP
<?php
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require_once 'HTMLPurifier/AttrDef.php';
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/**
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* Validates an integer.
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* @note While this class was modeled off the CSS definition, no currently
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* allowed CSS uses this type. The properties that do are: widows,
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* orphans, z-index, counter-increment, counter-reset. Some of the
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* HTML attributes, however, find use for a non-negative version of this.
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*/
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class HTMLPurifier_AttrDef_Integer extends HTMLPurifier_AttrDef
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{
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/**
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* Bool indicating whether or not integers can only be positive.
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*/
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var $non_negative = false;
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/**
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* @param $non_negative bool indicating whether or not only positive
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*/
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function HTMLPurifier_AttrDef_Integer($non_negative = false) {
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$this->non_negative = $non_negative;
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}
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function validate($integer, $config, &$context) {
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$integer = $this->parseCDATA($integer);
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if ($integer === '') return false;
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if ( !$this->non_negative && $integer[0] === '-' ) {
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$digits = substr($integer, 1);
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} elseif( $integer[0] === '+' ) {
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$digits = $integer = substr($integer, 1);
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} else {
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$digits = $integer;
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}
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if (!ctype_digit($digits)) return false;
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return $integer;
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}
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}
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?>
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