private static string RotatePhrase(string phrase, int number_rotations, IShifter shifter)
{
string phraseWithoutSpaces = RemoveSpaces(phrase);
phraseWithoutSpaces = shifter.Shift(phraseWithoutSpaces, number_rotations);
return(PutSpacesBackInPlace(phrase, phraseWithoutSpaces));
}
private static string RotateWords(string phrase, int number_rotations, IShifter shifter)
{
List <string> words = GetListOfWordsIn(phrase);
for (int position = 0; position < NumberOf(words); position++)
{
if (HasMoreThanOneLetter(words[position]))
{
words[position] = shifter.Shift(words[position], number_rotations);
}
}
return(JoinWords(words, SPACE));
}