text: var MATCH = require('./$.wks')('match');
  module.exports = function(KEY){
    var re = /./;
    try {
      '/./'[KEY](re);
    } catch(e){
      try {
        re[MATCH] = false;
        return !'/./'[KEY](re);
      } catch(f){ /* empty */ }
    } return true;
  };