Ok then maybe it's just a matter of taste. I like the parser approach more: import Text.ParserCombinators.ReadP -- or the parser lib of your choice import Dat

Ok then maybe it's just a matter of taste. I like the parser approach more: import Text.ParserCombinators.ReadP -- or the parser lib of your choice import Data.Char ... macP = count 16 (satisfy isHexDigit)