jQuery.extend(
    jQuery.expr[':'], {
        regex: function(elem, index, match) {
            var matchParams = match[3].split(','),
                validLabels = /^(data|css):/,
                attr = {
                    method: matchParams[0].match(validLabels) ? 
                                matchParams[0].split(':')[0] : 'attr',
                    property: matchParams.shift().replace(validLabels,'')
                },
                regexFlags = 'ig',
                regex = new RegExp(matchParams.join('').replace(/^\s+|\s+$/g,''), regexFlags);
            return regex.test(jQuery(elem)[attr.method](attr.property));
        }
    }
);