Indexer Fun

Indexer.scala

class Indexer(sentences : List[String]) {

  // Let's pre-process the words for thousands of calls
  val sentenceList = sentences.map(words(_))

  def find(key: String) {
    for {
      sentence <- sentenceList
      count = sentence.count{ _.equalsIgnoreCase(key) } if count > 0
      debug = sentence.mkString(" ")
    } {
      println(s"""${debug} ($count)""")
      //println(debug + " (" + count + ")")
    }
  }
}

// Test words function
def words(sentence: String): List[String] = sentence.split(" ").toList

// ~-- Initial thoughts --
//  def find(key: String) = {
//    for(sentence <- sentences) {
//      val x = words(sentence).filter(_.equalsIgnoreCase(key)).length
//      if(x > 0) println(sentence + " (" + x + ")")
//    }
//  }