% \subsubsection{Hints}
% \DescribeEnv{hint}{Hint environments can be embedded inside problems.}
%    \begin{macrocode}
%<*classXimera>
%    \end{macrocode}
% Create a counter that will track how deeply nested the current hint is
%    \begin{macrocode}
\newcounter{hintLevel}
\setcounter{hintLevel}{0}
%    \end{macrocode}
% Create an empty shell to renew
%    \begin{macrocode}
\newenvironment{hint}{}{}
%    \end{macrocode}
% Now we renew the environment as needed, this should allow support
% for any transition code that treats some parts as a "handout" and
% some parts as non-handout.  renewing the environment on the fly is a
% bit hacky.
%    \begin{macrocode}
\renewenvironment{hint}
	{
	\ifhandout
		\setbox0\vbox\bgroup
	\else
		\begin{trivlist}\item[\hskip \labelsep\small\slshape\bfseries Hint:\hspace{2ex}]
		\small\slshape
	\fi
%    \end{macrocode}
% Step up hint level to track the nested level of the hint. This will be used for problem numbering.
%    \begin{macrocode}
	\stepcounter{hintLevel}
	}
	{
	\ifhandout
		\egroup\ignorespacesafterend
	\else
		\end{trivlist}
	\fi
%    \end{macrocode}
% Detract from hint level counter to track hint nested level
%    \begin{macrocode}
	\addtocounter{hintLevel}{-1}
	}

\ifhints
	\renewenvironment{hint}{
	\begin{trivlist}\item[\hskip \labelsep\small\slshape\bfseries Hint:\hspace{2ex}]
	\small\slshape}
	{\end{trivlist}}
\fi

%</classXimera>
%    \end{macrocode}