Uri Escape

Uri.scala

object Uri {
	def escape(unsafe: String) = {

		val alphabet = List[String]("a","b","c","e","f","g","h","i","j","k","l","m","n",
									 "o","p","q","r","s","t","u","v","w","x","y","z")

		var safe = ""
		unsafe.split("").foreach { char =>
			if (alphabet.indexOf(char.toLowerCase) == -1 && char.forall(_.isDigit) == false) {
				safe += "%"
				safe += Integer.toHexString(char.charAt(0).toInt)
			} else {
				safe += char
			}
		}
		safe
	}
}