//
// String Reverse By Words
//

public class reverseByWords {

  public static String toString(String source) {
    String revSource = reverseByLetters.toString(source);

    // Walk through the reversed list, finding blank-separated
    // tokens and appending them to a destination string with
    // re-reversals of the individual words.

    char whiteSpace = ' ';
    int startLoc = 0;
    int wsLoc = 1;
    String word, newString = "";
    
    while (wsLoc >= 0) {
      wsLoc = revSource.indexOf(whiteSpace, startLoc);
      if (wsLoc < 0) {
        word = revSource.substring(startLoc);
	if (word.length() > 0) newString += reverseByLetters.toString(word);
	break;
      }
      word = revSource.substring(startLoc, wsLoc);
      if (word.length() > 0) newString += reverseByLetters.toString(word) + " ";
      startLoc = wsLoc+1;
    }
    return newString;
  }
}