Convert a string to a List of words

ConvertStringToListWord.cs

private static List<string> stringToWordArray(string s)
{
	List<string> words = new List<string>();
	string word;
	s = s.ToUpper();
	s = s.Trim(',', '.', '"', '-', ' ', ':', ';', '\n', '!', '?');
	while (s.Length > 0)
	{
		if (s.Contains(' '))
		{
			word = s.Substring(0, s.IndexOf(" "));
			s = s.Substring(s.IndexOf(" ") + 1);
			s = s.Trim();
		}
		else
		{
			word = s;
			s = "";
		}
		word = word.Trim(',', '.', '"', '-', ' ', ':', ';', '\n', '!', '?');
		if (word.Length > 0)
			words.Add(word);
		else
			return words;

	}
	return words;
}