7l7w-scala-day2

censor1.scala

trait Censor {
  val document: List[String]
  val dictionary = Map("Shoot" -> "Pucky", "Darn" -> "Beans")
  
  def censor = document.map(word => dictionary.getOrElse(word, word))
}

object sample extends Censor {
  val document = List("Gosh", "Darn", "It", "Shit", "Shoot")
}

println(sample.censor)

censor2.scala

import scala.io.Source

trait Censor {
  val document:List[String]

  def dictionary:Map[String, String] = {
    val dictionaryFile = Source.fromFile("dictionary.txt")
    dictionaryFile.getLines.toList.map(line => line.split(' ')).map(pair => (pair(0), pair(1))).toMap
  }

  def censor = document.map(word => dictionary.getOrElse(word, word))
}

object sample extends Censor {
  val document = List("Gosh", "Darn", "It", "Shit","Shoot")
}

println(sample.censor)

dictionary.txt

Shoot Pucky
Darn Beans

http://d.hatena.ne.jp/passingloop/20110928/seven_languages_in_seven_weeks_scala_homework