\installprettytype [HASKELL] [HASKELL]
% Define \starthaskell \stophaskell
\definetyping[haskell][option=HASKELL,before=,after=]
\installprettytype [HASKELL] [HASKELL]
% Define \starthaskell \stophaskell
\definetyping[haskell][option=HASKELL,before=,after=]