text: var $export = require('./$.export')
    , defined = require('./$.defined')
    , fails   = require('./$.fails')
    , spaces  = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
        '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF'
    , space   = '[' + spaces + ']'
    , non     = '\u200b\u0085'
    , ltrim   = RegExp('^' + space + space + '*')
    , rtrim   = RegExp(space + space + '*$');
  
  var exporter = function(KEY, exec){
    var exp  = {};
    exp[KEY] = exec(trim);
    $export($export.P + $export.F * fails(function(){
      return !!spaces[KEY]() || non[KEY]() != non;
    }), 'String', exp);
  };
  
  // 1 -> String#trimLeft
  // 2 -> String#trimRight
  // 3 -> String#trim
  var trim = exporter.trim = function(string, TYPE){
    string = String(defined(string));
    if(TYPE & 1)string = string.replace(ltrim, '');
    if(TYPE & 2)string = string.replace(rtrim, '');
    return string;
  };
  
  module.exports = exporter;