public SentenceWithWordCounts AnalyzeSentence(string sentence)
{
string parsedSentence = sentence.Trim().TrimEnd(EndOfSentenceChars);
IEnumerable<string> words = parsedSentence.Split(PunctuationChars, StringSplitOptions.RemoveEmptyEntries).Select(w => w.ToLower());
IEnumerable<WordCount> wordCounts = words.GroupBy(w => w).Select(group => new WordCount {Word = group.Key, Count = group.Count()});
SentenceWithWordCounts sentenceWithWordCounts = new SentenceWithWordCounts(sentence, wordCounts);
return sentenceWithWordCounts;
}
public string FormatOutput(SentenceWithWordCounts sentenceWithWordCount)
{
StringBuilder stringBuilder = new StringBuilder(string.Format("Input: {0}\r\nOutput:", sentenceWithWordCount.Sentence));
foreach (WordCount wordCount in sentenceWithWordCount.WordCounts)
{
stringBuilder.AppendFormat("\r\n{0} - {1}", wordCount.Word, wordCount.Count);
}
string output = stringBuilder.ToString();
return output;
}