2009-02-07 20:20:49 +01:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2009-12-31 02:18:35 +01:00
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="pandoc" />
<style type="text/css">
2010-07-16 08:00:58 +02:00
table.sourceCode, tr.sourceCode, td.lineNumbers, td.sourceCode, table.sourceCode pre
{ margin: 0; padding: 0; border: 0; vertical-align: baseline; border: none; }
2010-07-16 09:23:13 +02:00
td.lineNumbers { border-right: 1px solid #AAAAAA; text-align: right; color: #AAAAAA; padding-right: 5px; padding-left: 5px; }
2010-07-16 08:00:58 +02:00
td.sourceCode { padding-left: 5px; }
2010-07-16 09:23:13 +02:00
pre.sourceCode span.kw { color: #007020; font-weight: bold; }
pre.sourceCode span.dt { color: #902000; }
pre.sourceCode span.dv { color: #40a070; }
pre.sourceCode span.bn { color: #40a070; }
pre.sourceCode span.fl { color: #40a070; }
pre.sourceCode span.ch { color: #4070a0; }
pre.sourceCode span.st { color: #4070a0; }
pre.sourceCode span.co { color: #60a0b0; font-style: italic; }
pre.sourceCode span.ot { color: #007020; }
pre.sourceCode span.al { color: red; font-weight: bold; }
pre.sourceCode span.fu { color: #06287e; }
2010-07-16 08:00:58 +02:00
pre.sourceCode span.re { }
pre.sourceCode span.er { color: red; font-weight: bold; }
2009-12-31 02:18:35 +01:00
</style>
</head>
<body>
2010-07-16 08:00:58 +02:00
<h1 id="lhs-test"
>lhs test</h1
><p
><code
>unsplit</code
> is an arrow that takes a pair of values and combines them to return a single value:</p
><pre class="sourceCode haskell"
><code
2011-01-07 06:04:57 +01:00
>> <span class="ot"
>unsplit </span
><span class="ot"
>::</span
> (<span class="dt"
2010-07-16 08:00:58 +02:00
>Arrow</span
2011-01-07 06:04:57 +01:00
> a) <span class="ot"
>=></span
> (b <span class="ot"
>-></span
> c <span class="ot"
>-></span
> d) <span class="ot"
>-></span
> a (b, c) d<br
2010-07-16 08:00:58 +02:00
/>> unsplit <span class="fu"
>=</span
> arr <span class="fu"
>.</span
> <span class="fu"
>uncurry</span
> <br
/>> <span class="co"
>-- arr (\op (x,y) -> x `op` y) </span
><br
/></code
></pre
><p
><code
>(***)</code
> combines two arrows into a new arrow by running the two arrows on a pair of values (one arrow on the first item of the pair and one arrow on the second item of the pair).</p
><pre
><code
>f *** g = first f >>> second g
2009-02-07 20:20:49 +01:00
</code
2010-07-16 08:00:58 +02:00
></pre
><p
>Block quote:</p
><blockquote
><p
>foo bar</p
></blockquote
2009-02-07 20:20:49 +01:00
>
2009-12-31 02:18:35 +01:00
</body>
</html>
