Scrabble Score [Exercism - Nim]

scrabble.score.nim

import strutils
proc score*(word: string): int =

  for char in word.toUpperAscii:
   case char
    of 'A', 'E', 'I', 'O', 'U', 'L', 'N', 'R', 'S', 'T': inc(result)
    of 'D', 'G': inc(result, 2)
    of 'B', 'C', 'M', 'P': inc(result, 3)
    of 'F', 'H', 'V', 'W', 'Y': inc(result, 4)
    of 'K': inc(result,5)
    of 'J', 'X': inc(result, 8)
    of 'Q', 'Z': inc(result, 10)
    else: discard