The titlecaps package is intended for setting rich text into titling 
capitals (in which the first character of words are capitalized).  It 
automatically accounts for diacritical marks (like umlauts), national 
symbols (like "ae"), punctuation, and font changing commands that alter 
the appearance or size of the text.  It allows a list of predesignated 
words to be protected as lower-cased, and also allows for titling 
exceptions of various sorts.