jquery.role — sizzle edition ;)

jquery.role.js

jQuery.expr.match['ROLE'] = /\$((?:[\w\u00c0-\uFFFF\-]|\\.)+)/;

jQuery.expr.preFilter['ROLE'] = function( match, curLoop, inplace, result, not, isXML ) {
  match = " " + match[1] + " ";
  return match;
}

jQuery.expr.filter['ROLE'] = function( elem, match ) {
  return (" " + elem.getAttribute('role') + " ").indexOf( match ) > -1;
}

for ( var type in jQuery.expr.match ) {
  jQuery.expr.match[ type ] = new RegExp( jQuery.expr.match[ type ].source + (/(?![^\[]*\])(?![^\(]*\))/.source) );
  jQuery.expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + jQuery.expr.match[ type ].source.replace(/\\(\d+)/g, function(all, num) {
    return "\\" + (num - 0 + 1);
  }));
}