Function to Change a Block of Text to Title Case

Description:

Function to change a block of text to Title Case.

Source Code:

Application.AddMessageFilter(new MyMessageFilter());
/// <SUMMARY>
/// Returns the given phrase in Title Case.
/// </SUMMARY>
/// <PARAM name="thePhrase">The phrase to be formatted.
</PARAM>
/// <RETURNS>formatted string; example: The Procedure Returns a Formatted String In Title Case.
</RETURNS>
public string TitleCase(string thePhrase)
{
StringBuilder newString = new StringBuilder();
StringBuilder nextString = new StringBuilder();
string[] phraseArray;
string theWord;
string returnValue;
phraseArray = thePhrase.Split(null);
for(int i = 0; i < phraseArray.Length; i++)
{
theWord = phraseArray[i].ToLower();
if (theWord.Length > 1)
{
if (theWord.Substring(1, 1) == "'")
{
//Process word with apostrophe at position 1 in 0 based string.
if (nextString.Length > 0)
nextString.Replace(nextString.ToString(), null);
nextString.Append(theWord.Substring(0, 1).ToUpper());
nextString.Append("'");
nextString.Append(theWord.Substring(2, 1).ToUpper());
nextString.Append(theWord.Substring(3).ToLower());
nextString.Append(" ");
}
else
{
if (theWord.Length > 1 && theWord.Substring(0, 2) == "mc")
{
//Process McName.
if (nextString.Length > 0)
nextString.Replace(nextString.ToString(), null);
nextString.Append("Mc");
nextString.Append(theWord.Substring(2, 1).ToUpper());
nextString.Append(theWord.Substring(3).ToLower());
nextString.Append(" ");
}
else
{
if (theWord.Length > 2 && theWord.Substring(0, 3) == "mac")
{
//Process MacName.
if (nextString.Length > 0)
nextString.Replace(nextString.ToString(), null);
nextString.Append("Mac");
nextString.Append(theWord.Substring(3, 1).ToUpper());
nextString.Append(theWord.Substring(4).ToLower());
nextString.Append(" ");
}
else
{
//Process normal word (possible apostrophe near end of word.
if (nextString.Length > 0)
nextString.Replace(nextString.ToString(), null);
nextString.Append(theWord.Substring(0, 1).ToUpper());
nextString.Append(theWord.Substring(1).ToLower());
nextString.Append(" ");
}
}
}
}
else
{
//Process normal single character length word.
if (nextString.Length > 0)
nextString.Replace(nextString.ToString(),null);
nextString.Append(theWord.ToUpper());
nextString.Append(" ");
}
newString.Append(nextString);
}
returnValue = newString.ToString();
return returnValue.Trim();
}