Document LOWER-CASE-P, UPPER-CASE-P, BOTH-CASE-P, LISP:TITLE-CASE-P,

  Returns non-nil{} if the Unicode category is a graphic category.

\end{defun}

\begin{defun}{}{upper-case-p}{\args \var{character}}

  \defunx{lower-case-p}{\args \var{character}}

  Returns non-nil{} if the Unicode category is an uppercase

  (lowercase) character.

\end{defun}

\begin{defun}{lisp:}{title-case-p}{\args \var{character}}

  Returns non-nil{} if the Unicode category is a titlecase character.

\end{defun}

\begin{defun}{}{both-case-p}{\args \var{character}}

  Returns non-nil{} if the Unicode category is an uppercase,

  lowercase, or titlecase character.

\end{defun}

\begin{defun}{}{char-upcase}{\args \var{character}}

  \defunx{char-downcase}{\args \var{character}}

  The Unicode uppercase (lowercase) letter is returned.

\end{defun}

\begin{defun}{lisp:}{char-titlecase}{\args \var{character}}

  \defunx{char-downcase}{\args \var{character}}

  The Unicode titlecase letter is returned.

\end{defun}

\begin{defun}{}{char-name}{\args \var{char}}

   If possible the name of the character \var{char} is returned.  If