Edit File: Ident.php
<?php /** * Validates based on {ident} CSS grammar production */ class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef { /** * @param string $string * @param HTMLPurifier_Config $config * @param HTMLPurifier_Context $context * @return bool|string */ public function validate($string, $config, $context) { $string = trim($string); // early abort: '' and '0' (strings that convert to false) are invalid if (!$string) { return false; } $pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/'; if (!preg_match($pattern, $string)) { return false; } return $string; } } // vim: et sw=4 sts=4
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