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37 lines
953 B
PHP
37 lines
953 B
PHP
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<?php
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require_once 'HTMLPurifier/AttrDef.php';
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// appears to be a dud class: no currently allowed CSS uses this type
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// Uses this: widows, orphans, z-index, counter-increment, counter-reset
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class HTMLPurifier_AttrDef_Integer extends HTMLPurifier_AttrDef
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{
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var $non_negative = false;
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function HTMLPurifier_AttrDef_Integer($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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