ometa FJSParser <: Parser {
  fromTo :x :y = seq(x) (~seq(y) char)* seq(y), 
  space        = super(#space) | fromTo('//', '\n') | fromTo('/*', '*/'),
  nameFirst    = letter | '$' | '_',
  nameRest     = nameFirst | digit,
  iName        = firstAndRest(`nameFirst, `nameRest):r                                           -> r.join(''),
  isKeyword :x = ?FJSParser._isKeyword(x),
  name         = iName:n ~isKeyword(n)                                                           -> [`name, n],
  keyword      = iName:k isKeyword(k)                                                            -> [k, k],
  hexDigit     = char:x {self.hexDigits.indexOf(x.toLowerCase())}:v ?(v >= 0)                    -> v,
  hexLit       = hexLit:n hexDigit:d                                                             -> (n * 16 + d)
               | hexDigit,
  number       = ``0x'' hexLit:n                                                                 -> [`number, n]
               | digit+:ws ('.' digit+ | empty -> []):fs                                         -> [`number,
                                                                                                     parseFloat(ws.join('') + '.' +
                                                                                                                fs.join(''))],
}
JSParser.hexDigits = "0123456789abcdef"

All // For prototypeing all objects
Closures = {}
Lists = [] // Arrays
Boolean = true && false
String = "" && ''
Number = 10 && 0xe11a1