2009-02-07 20:20:49 +01:00
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\documentclass{article}
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\usepackage{amsmath}
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\usepackage[mathletters]{ucs}
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\usepackage[utf8x]{inputenc}
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\usepackage{listings}
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\lstnewenvironment{code}{\lstset{language=Haskell,basicstyle=\small\ttfamily}}{}
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\setlength{\parindent}{0pt}
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\setlength{\parskip}{6pt plus 2pt minus 1pt}
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\setcounter{secnumdepth}{0}
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\author{}
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\begin{document}
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\section{lhs test}
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\verb!unsplit! is an arrow that takes a pair of values and combines
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them to return a single value:
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\begin{code}
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unsplit :: (Arrow a) => (b -> c -> d) -> a (b, c) d
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unsplit = arr . uncurry
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-- arr (\op (x,y) -> x `op` y)
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\end{code}
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\verb!(***)! combines two arrows into a new arrow by running the
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two arrows on a pair of values (one arrow on the first item of the
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pair and one arrow on the second item of the pair).
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\begin{verbatim}
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f *** g = first f >>> second g
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\end{verbatim}
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2009-02-14 05:08:18 +01:00
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Block quote:
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2009-02-07 20:20:49 +01:00
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\begin{quote}
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2009-02-14 05:08:18 +01:00
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foo bar
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2009-02-07 20:20:49 +01:00
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\end{quote}
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\end{document}
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