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theon/reverse_letter_words.scala

Last active August 29, 2015 14:26
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reverse_letter_words.scala
import scala.io.Source
val reverseLetters = ( ('a' to 'z') zip ('a' to 'z').reverse ).toMap.withDefault(identity)
val words = Source.fromFile("/usr/share/dict/words").getLines.toVector
def isWordMatch(word: String) = {
val reverseLetterWord = word.toLowerCase.map(reverseLetters)
reverseLetterWord.reverse == word
}
println(words filter isWordMatch)
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