literate haskell

[Phil Molyneux]

On Wed, 20 Mar 2002, Jorge Adriano wrote:

> Why is it necessary to leave a blank line between comments and code?
> I'm using LaTeX  in my lhs files, with the code inside a verbatim 
> environment, and I'd rather start writing my code right after the 
> \begin{verbatim}.

Haskell allows you to use a LaTeX \begin{code}...\end{code} environment to
signify code in a literate script (Report Appendix C) --- the only snag is
finding a definition for the ``code'' environment. 

The two that work for me are:

(1) Andrew Cooke's haskell.sty --- this is based on the listings.sty package
which has lots of features to pretty-print your code without editing it or
inserting LaTeX commands. This is available at haskell.org

(2) The fancybox.sty package --- if the listings package is not available or
fairly old on your LaTeX system then the following will probably still work

% code environment for Haskell/HUGS
% Environment for code --- requires fancybox package

\usepackage{fancybox}

\newenvironment{code}%
    {\VerbatimEnvironment
      \begin{Verbatim}}%
    {\end{Verbatim}}


Phil

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Phil Molyneux                             email  molyneux@kingston.ac.uk
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