Proyectos de Subversion Moodle

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1 efrain 1 
<?php
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/**
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 * Validates based on {ident} CSS grammar production
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 */
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class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef
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{
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    /**
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     * @param string $string
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return bool|string
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     */
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    public function validate($string, $config, $context)
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    {
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        $string = trim($string);
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        // early abort: '' and '0' (strings that convert to false) are invalid
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        if (!$string) {
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            return false;
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        }
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        $pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/';
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        if (!preg_match($pattern, $string)) {
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            return false;
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        }
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        return $string;
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    }
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}
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// vim: et sw=4 sts=4