scrable scorer in scala

scrabble

#!/usr/bin/env scala
!#

import io.Source

if(args.length < 1) { println("usage: ./scrabble <filename>"); System.exit(-1)}

Source.fromFile(args(0)).getLines.foreach(w => printf("%s,%d%n", w,score(w)))

def score(word:String) = word.foldLeft(0) (_ + scoreChar(_))

def scoreChar(letter:Char) = {
  letter match {
    case 'a' => 1
    case 'b' => 3
    case 'c' => 5
    case 'd' => 2
    case 'e' => 1
    case 'f' => 4
    case 'g' => 3
    case 'h' => 4
    case 'i' => 1
    case 'j' => 4
    case 'k' => 3
    case 'l' => 3
    case 'm' => 3
    case 'n' => 1
    case 'o' => 1
    case 'p' => 3
    case 'q' => 10
    case 'r' => 2
    case 's' => 2
    case 't' => 2 
    case 'u' => 4
    case 'v' => 4
    case 'w' => 5
    case 'x' => 8
    case 'y' => 8
    case 'z' => 4
    case _ => 0        
  }
}