StringDump.scala

object StringDump{
  class DumpableString(str: String) {
    def dump = StringDump.dump(str)
  }
  implicit def enrichString(str: String) = new DumpableString(str)
  def dump(str:String):String={
    str.getBytes("UTF-8").map{
      case 34 => "\\\""
      case 92 => "\\"
      case n if 32 <= n && n <= 126 => new String(Array[Byte](n))
      case n if n < 0 => "\\%03o" format (256+n)
      case n => "\\%03o" format n
    }.mkString("\"","","\"")
  }
  def main(args: Array[String])={
    println(args(0).dump)
  }
}