<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>src/Util.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP, ExistentialQuantification, Rank2Types #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Util</span> <span class='hs-keyword'>where</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Function</span>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Ord</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Directory</span>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Exit</span>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>FilePath</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span>
<a name="line-15"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span>
<a name="line-16"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Coerce</span>
<a name="line-17"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span>
<a name="line-18"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Generics</span><span class='hs-varop'>.</span><span class='hs-conid'>Uniplate</span><span class='hs-varop'>.</span><span class='hs-conid'>Operations</span>
<a name="line-19"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>Exts</span><span class='hs-varop'>.</span><span class='hs-conid'>Extension</span>
<a name="line-20"></a>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-23"></a><span class='hs-comment'>-- SYSTEM.DIRECTORY</span>
<a name="line-24"></a>
<a name="line-25"></a><a name="getDirectoryContentsRecursive"></a><span class='hs-definition'>getDirectoryContentsRecursive</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span>
<a name="line-26"></a><span class='hs-definition'>getDirectoryContentsRecursive</span> <span class='hs-varid'>dir</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-27"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getDirectoryContents</span> <span class='hs-varid'>dir</span>
<a name="line-28"></a> <span class='hs-layout'>(</span><span class='hs-varid'>dirs</span><span class='hs-layout'>,</span><span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>partitionM</span> <span class='hs-varid'>doesDirectoryExist</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>dir</span> <span class='hs-varop'></></span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>xs</span><span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>isBadDir</span> <span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-29"></a> <span class='hs-varid'>rest</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>concatMapM</span> <span class='hs-varid'>getDirectoryContentsRecursive</span> <span class='hs-varid'>dirs</span>
<a name="line-30"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>files</span><span class='hs-varop'>++</span><span class='hs-varid'>rest</span>
<a name="line-31"></a> <span class='hs-keyword'>where</span>
<a name="line-32"></a> <span class='hs-varid'>isBadDir</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"."</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>x</span> <span class='hs-varop'>||</span> <span class='hs-str'>"_"</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>x</span>
<a name="line-33"></a>
<a name="line-34"></a>
<a name="line-35"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-36"></a><span class='hs-comment'>-- CONTROL.MONAD</span>
<a name="line-37"></a>
<a name="line-38"></a><a name="partitionM"></a><span class='hs-definition'>partitionM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-39"></a><span class='hs-definition'>partitionM</span> <span class='hs-varid'>f</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-definition'>partitionM</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-41"></a> <span class='hs-varid'>res</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span>
<a name="line-42"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>as</span><span class='hs-layout'>,</span><span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>partitionM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>xs</span>
<a name="line-43"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>|</span><span class='hs-varid'>res</span><span class='hs-keyglyph'>]</span><span class='hs-varop'>++</span><span class='hs-keyword'>as</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>|</span><span class='hs-varid'>not</span> <span class='hs-varid'>res</span><span class='hs-keyglyph'>]</span><span class='hs-varop'>++</span><span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="concatMapM"></a><span class='hs-definition'>concatMapM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span>
<a name="line-46"></a><span class='hs-definition'>concatMapM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>.</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>f</span>
<a name="line-47"></a>
<a name="line-48"></a><a name="concatZipWithM"></a><span class='hs-definition'>concatZipWithM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span>
<a name="line-49"></a><span class='hs-definition'>concatZipWithM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>ys</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>concat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zipWithM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>ys</span>
<a name="line-50"></a>
<a name="line-51"></a><a name="listM'"></a><span class='hs-definition'>listM'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-52"></a><span class='hs-definition'>listM'</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>x</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>return</span> <span class='hs-varid'>x</span>
<a name="line-53"></a>
<a name="line-54"></a>
<a name="line-55"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-56"></a><span class='hs-comment'>-- PRELUDE</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="notNull"></a><span class='hs-definition'>notNull</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>null</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="headDef"></a><span class='hs-definition'>headDef</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-61"></a><span class='hs-definition'>headDef</span> <span class='hs-varid'>x</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-62"></a><span class='hs-definition'>headDef</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>y</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="isLeft"></a><span class='hs-definition'>isLeft</span> <span class='hs-conid'>Left</span><span class='hs-layout'>{</span><span class='hs-layout'>}</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span><span class='hs-layout'>;</span> <span class='hs-varid'>isLeft</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-65"></a><a name="isRight"></a><span class='hs-definition'>isRight</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>isLeft</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="unzipEither"></a><span class='hs-definition'>unzipEither</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Either</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-68"></a><span class='hs-definition'>unzipEither</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-69"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-70"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-71"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unzipEither</span> <span class='hs-varid'>xs</span>
<a name="line-72"></a><span class='hs-definition'>unzipEither</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-73"></a>
<a name="line-74"></a>
<a name="line-75"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-76"></a><span class='hs-comment'>-- DATA.STRING</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="limit"></a><span class='hs-definition'>limit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-79"></a><span class='hs-definition'>limit</span> <span class='hs-varid'>n</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>post</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>pre</span> <span class='hs-varop'>++</span> <span class='hs-str'>"..."</span>
<a name="line-80"></a> <span class='hs-keyword'>where</span> <span class='hs-layout'>(</span><span class='hs-varid'>pre</span><span class='hs-layout'>,</span><span class='hs-varid'>post</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitAt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>s</span>
<a name="line-81"></a>
<a name="line-82"></a><a name="ltrim"></a><span class='hs-definition'>ltrim</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-83"></a><span class='hs-definition'>ltrim</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>isSpace</span>
<a name="line-84"></a>
<a name="line-85"></a><a name="trimBy"></a><span class='hs-definition'>trimBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span>
<a name="line-86"></a><span class='hs-definition'>trimBy</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>reverse</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>f</span>
<a name="line-87"></a>
<a name="line-88"></a>
<a name="line-89"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-90"></a><span class='hs-comment'>-- DATA.LIST</span>
<a name="line-91"></a>
<a name="line-92"></a><a name="groupSortFst"></a><span class='hs-definition'>groupSortFst</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ord</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>b</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-93"></a><span class='hs-definition'>groupSortFst</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>head</span> <span class='hs-varop'>&&&</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>groupBy</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-varop'>`on`</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>sortBy</span> <span class='hs-layout'>(</span><span class='hs-varid'>comparing</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="disjoint"></a><span class='hs-definition'>disjoint</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Eq</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-96"></a><span class='hs-definition'>disjoint</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>null</span> <span class='hs-varop'>.</span> <span class='hs-varid'>intersect</span> <span class='hs-varid'>xs</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="unsnoc"></a><span class='hs-definition'>unsnoc</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-99"></a><span class='hs-definition'>unsnoc</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Unsnoc on empty list"</span>
<a name="line-100"></a><span class='hs-definition'>unsnoc</span> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>init</span> <span class='hs-varid'>xs</span><span class='hs-layout'>,</span> <span class='hs-varid'>last</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-101"></a>
<a name="line-102"></a>
<a name="line-103"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-104"></a><span class='hs-comment'>-- SYSTEM.IO</span>
<a name="line-105"></a>
<a name="line-106"></a><a name="readFileEncoding"></a><span class='hs-definition'>readFileEncoding</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span>
<a name="line-107"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ < 612</span>
<a name="line-108"></a><span class='hs-definition'>readFileEncoding</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readFile</span>
<a name="line-109"></a><span class='hs-cpp'>#else</span>
<a name="line-110"></a><span class='hs-definition'>readFileEncoding</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readFile</span>
<a name="line-111"></a><span class='hs-definition'>readFileEncoding</span> <span class='hs-varid'>enc</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>file</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-112"></a> <span class='hs-varid'>h</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>openFile</span> <span class='hs-varid'>file</span> <span class='hs-conid'>ReadMode</span>
<a name="line-113"></a> <span class='hs-varid'>enc</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mkTextEncoding</span> <span class='hs-varid'>enc</span>
<a name="line-114"></a> <span class='hs-varid'>hSetEncoding</span> <span class='hs-varid'>h</span> <span class='hs-varid'>enc</span>
<a name="line-115"></a> <span class='hs-varid'>hGetContents</span> <span class='hs-varid'>h</span>
<a name="line-116"></a><span class='hs-cpp'>#endif</span>
<a name="line-117"></a>
<a name="line-118"></a><a name="warnEncoding"></a><span class='hs-definition'>warnEncoding</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-119"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ < 612</span>
<a name="line-120"></a><span class='hs-definition'>warnEncoding</span> <span class='hs-varid'>enc</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>enc</span> <span class='hs-varop'>/=</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"Warning: Text encodings are not supported with HLint compiled by GHC 6.10"</span>
<a name="line-121"></a><span class='hs-cpp'>#endif</span>
<a name="line-122"></a><span class='hs-definition'>warnEncoding</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-123"></a>
<a name="line-124"></a>
<a name="line-125"></a><a name="exitMessage"></a><span class='hs-definition'>exitMessage</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-126"></a><span class='hs-definition'>exitMessage</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-127"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-varid'>msg</span>
<a name="line-128"></a> <span class='hs-varid'>exitWith</span> <span class='hs-varop'>$</span> <span class='hs-conid'>ExitFailure</span> <span class='hs-num'>1</span>
<a name="line-129"></a>
<a name="line-130"></a>
<a name="line-131"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-132"></a><span class='hs-comment'>-- DATA.GENERICS</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="Box"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Box</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>a</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Data</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Box</span> <span class='hs-varid'>a</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="gzip"></a><span class='hs-definition'>gzip</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Data</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-keyword'>forall</span> <span class='hs-varid'>b</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Data</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span>
<a name="line-137"></a><span class='hs-definition'>gzip</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>toConstr</span> <span class='hs-varid'>x</span> <span class='hs-varop'>/=</span> <span class='hs-varid'>toConstr</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-138"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>zipWith</span> <span class='hs-varid'>op</span> <span class='hs-layout'>(</span><span class='hs-varid'>gmapQ</span> <span class='hs-conid'>Box</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>gmapQ</span> <span class='hs-conid'>Box</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-139"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>op</span> <span class='hs-layout'>(</span><span class='hs-conid'>Box</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Box</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeCoerce</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-140"></a>
<a name="line-141"></a>
<a name="line-142"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-143"></a><span class='hs-comment'>-- DATA.GENERICS.UNIPLATE.OPERATIONS</span>
<a name="line-144"></a>
<a name="line-145"></a><a name="descendIndex"></a><span class='hs-definition'>descendIndex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Uniplate</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-146"></a><span class='hs-definition'>descendIndex</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>evalState</span> <span class='hs-num'>0</span> <span class='hs-varop'>$</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>descendM</span> <span class='hs-varid'>x</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-147"></a> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>get</span>
<a name="line-148"></a> <span class='hs-varid'>modify</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-149"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>f</span> <span class='hs-varid'>i</span> <span class='hs-varid'>y</span>
<a name="line-150"></a>
<a name="line-151"></a><a name="universeParent"></a><span class='hs-definition'>universeParent</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Uniplate</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-152"></a><span class='hs-definition'>universeParent</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Nothing</span><span class='hs-layout'>,</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span>
<a name="line-153"></a> <span class='hs-keyword'>where</span>
<a name="line-154"></a> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Uniplate</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-155"></a> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>f</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>children</span> <span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-156"></a>
<a name="line-157"></a><a name="universeParentBi"></a><span class='hs-definition'>universeParentBi</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Biplate</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-varid'>b</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-158"></a><span class='hs-definition'>universeParentBi</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>universeParent</span> <span class='hs-varop'>.</span> <span class='hs-varid'>childrenBi</span>
<a name="line-159"></a>
<a name="line-160"></a>
<a name="line-161"></a><span class='hs-comment'>---------------------------------------------------------------------</span>
<a name="line-162"></a><span class='hs-comment'>-- LANGUAGE.HASKELL.EXTS.EXTENSION</span>
<a name="line-163"></a>
<a name="line-164"></a><a name="defaultExtensions"></a><span class='hs-definition'>defaultExtensions</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Extension</span><span class='hs-keyglyph'>]</span>
<a name="line-165"></a><span class='hs-definition'>defaultExtensions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>knownExtensions</span> <span class='hs-varop'>\\</span> <span class='hs-varid'>badExtensions</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="badExtensions"></a><span class='hs-definition'>badExtensions</span> <span class='hs-keyglyph'>=</span>
<a name="line-168"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arrows</span> <span class='hs-comment'>-- steals proc</span>
<a name="line-169"></a> <span class='hs-layout'>,</span><span class='hs-conid'>TransformListComp</span> <span class='hs-comment'>-- steals the group keyword</span>
<a name="line-170"></a> <span class='hs-layout'>,</span><span class='hs-conid'>XmlSyntax</span><span class='hs-layout'>,</span> <span class='hs-conid'>RegularPatterns</span> <span class='hs-comment'>-- steals a-b</span>
<a name="line-171"></a> <span class='hs-keyglyph'>]</span>
</pre></body>
</html>
