<?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://code.haskell.org/~malcolm/hscolour/ -->
<title>src/Darcs/Patch/Bundle.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2002-2004,2007 David Roundy</span>
<a name="line-2"></a><span class='hs-comment'>--</span>
<a name="line-3"></a><span class='hs-comment'>-- This program is free software; you can redistribute it and/or modify</span>
<a name="line-4"></a><span class='hs-comment'>-- it under the terms of the GNU General Public License as published by</span>
<a name="line-5"></a><span class='hs-comment'>-- the Free Software Foundation; either version 2, or (at your option)</span>
<a name="line-6"></a><span class='hs-comment'>-- any later version.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- This program is distributed in the hope that it will be useful,</span>
<a name="line-9"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-10"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="line-11"></a><span class='hs-comment'>-- GNU General Public License for more details.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- You should have received a copy of the GNU General Public License</span>
<a name="line-14"></a><span class='hs-comment'>-- along with this program; see the file COPYING. If not, write to</span>
<a name="line-15"></a><span class='hs-comment'>-- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="line-16"></a><span class='hs-comment'>-- Boston, MA 02110-1301, USA.</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-21"></a>
<a name="line-22"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Bundle</span> <span class='hs-layout'>(</span> <span class='hs-varid'>hashBundle</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeBundle2</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeBundleN</span><span class='hs-layout'>,</span> <span class='hs-varid'>scanBundle</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>contextPatches</span><span class='hs-layout'>,</span> <span class='hs-varid'>scanContext</span><span class='hs-layout'>,</span> <span class='hs-varid'>patchFilename</span><span class='hs-layout'>,</span> <span class='hs-varid'>getContext</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>parseBundle</span>
<a name="line-25"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isAlpha</span><span class='hs-layout'>,</span> <span class='hs-varid'>toLower</span><span class='hs-layout'>,</span> <span class='hs-varid'>isDigit</span><span class='hs-layout'>,</span> <span class='hs-varid'>isSpace</span> <span class='hs-layout'>)</span>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchInfoAnd</span><span class='hs-layout'>,</span> <span class='hs-varid'>piap</span><span class='hs-layout'>,</span> <span class='hs-varid'>fmapFL_PIAP</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-varid'>patchInfoAndPatch</span><span class='hs-layout'>,</span>
<a name="line-30"></a> <span class='hs-varid'>unavailable</span><span class='hs-layout'>,</span> <span class='hs-varid'>hopefully</span> <span class='hs-layout'>)</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RepoPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>Named</span><span class='hs-layout'>,</span> <span class='hs-varid'>showPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>showContextPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>readPatchPartial</span> <span class='hs-layout'>)</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Apply</span><span class='hs-layout'>(</span> <span class='hs-conid'>ApplyState</span> <span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Bracketed</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Bracketed</span><span class='hs-layout'>,</span> <span class='hs-varid'>unBracketedFL</span> <span class='hs-layout'>)</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Bracketed</span><span class='hs-varop'>.</span><span class='hs-conid'>Instances</span> <span class='hs-conid'>()</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Format</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchListFormat</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Info</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchInfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>readPatchInfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>showPatchInfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>humanFriendly</span><span class='hs-layout'>,</span> <span class='hs-varid'>isTag</span> <span class='hs-layout'>)</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchSet</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Tagged</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Show</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ShowPatchBasic</span> <span class='hs-layout'>)</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Depends</span> <span class='hs-layout'>(</span> <span class='hs-varid'>slightlyOptimizePatchset</span> <span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadMonads</span> <span class='hs-layout'>(</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-layout'>)</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>PatchInfoAnd</span><span class='hs-layout'>(</span> <span class='hs-varid'>info</span> <span class='hs-layout'>)</span>
<a name="line-42"></a><span class='hs-cpp'>#ifdef GADT_WITNESSES</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Origin</span> <span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-cpp'>#endif</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>FL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-conop'>:></span><span class='hs-layout'>)</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-47"></a> <span class='hs-varid'>reverseFL</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>+<+</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapFL</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapFL_FL</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapRL</span> <span class='hs-layout'>)</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Printer</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Doc</span><span class='hs-layout'>,</span> <span class='hs-varid'>renderPS</span><span class='hs-layout'>,</span> <span class='hs-varid'>newline</span><span class='hs-layout'>,</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>$$</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-49"></a> <span class='hs-layout'>(</span><span class='hs-varop'><></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>vcat</span><span class='hs-layout'>,</span> <span class='hs-varid'>vsep</span><span class='hs-layout'>,</span> <span class='hs-varid'>renderString</span> <span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ByteStringUtils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>linesPS</span><span class='hs-layout'>,</span> <span class='hs-varid'>unlinesPS</span><span class='hs-layout'>,</span> <span class='hs-varid'>dropSpace</span><span class='hs-layout'>,</span> <span class='hs-varid'>substrPS</span><span class='hs-layout'>)</span>
<a name="line-52"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>,</span> <span class='hs-varid'>length</span><span class='hs-layout'>,</span> <span class='hs-varid'>null</span><span class='hs-layout'>,</span> <span class='hs-varid'>drop</span><span class='hs-layout'>,</span> <span class='hs-varid'>isPrefixOf</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BC</span> <span class='hs-layout'>(</span><span class='hs-varid'>unpack</span><span class='hs-layout'>,</span> <span class='hs-varid'>break</span><span class='hs-layout'>,</span> <span class='hs-varid'>pack</span><span class='hs-layout'>)</span>
<a name="line-54"></a>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>SHA1</span><span class='hs-layout'>(</span> <span class='hs-varid'>sha1PS</span> <span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Sealed</span><span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-57"></a>
<a name="line-58"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-varop'>.</span><span class='hs-conid'>Tree</span><span class='hs-layout'>(</span> <span class='hs-conid'>Tree</span> <span class='hs-layout'>)</span>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Storage</span><span class='hs-varop'>.</span><span class='hs-conid'>Hashed</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-layout'>(</span> <span class='hs-varid'>virtualTreeIO</span> <span class='hs-layout'>)</span>
<a name="line-60"></a>
<a name="line-61"></a><a name="hashBundle"></a><span class='hs-comment'>-- |hashBundle creates a SHA1 string of a given a FL of named patches. This</span>
<a name="line-62"></a><span class='hs-comment'>-- allows us to ensure that the patches in a received patchBundle have not been</span>
<a name="line-63"></a><span class='hs-comment'>-- modified in transit.</span>
<a name="line-64"></a><span class='hs-definition'>hashBundle</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchListFormat</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ShowPatchBasic</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span>
<a name="line-65"></a><span class='hs-definition'>hashBundle</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sha1PS</span> <span class='hs-varop'>$</span> <span class='hs-varid'>renderPS</span>
<a name="line-66"></a> <span class='hs-varop'>$</span> <span class='hs-varid'>vcat</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapFL</span> <span class='hs-varid'>showPatch</span> <span class='hs-varid'>to_be_sent</span><span class='hs-layout'>)</span> <span class='hs-varop'><></span> <span class='hs-varid'>newline</span>
<a name="line-67"></a>
<a name="line-68"></a><a name="makeBundleN"></a><span class='hs-definition'>makeBundleN</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tree</span> <span class='hs-conid'>IO</span><span class='hs-layout'>)</span>
<a name="line-69"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Doc</span>
<a name="line-70"></a><span class='hs-definition'>makeBundleN</span> <span class='hs-varid'>the_s</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-conop'>:<:</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-keyglyph'>=</span>
<a name="line-71"></a> <span class='hs-varid'>makeBundle2</span> <span class='hs-varid'>the_s</span> <span class='hs-layout'>(</span><span class='hs-varid'>ps</span> <span class='hs-varop'>+<+</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span> <span class='hs-conop'>:<:</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-varid'>to_be_sent</span>
<a name="line-72"></a><span class='hs-definition'>makeBundleN</span> <span class='hs-varid'>the_s</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-keyglyph'>=</span>
<a name="line-73"></a> <span class='hs-varid'>makeBundle2</span> <span class='hs-varid'>the_s</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-varid'>to_be_sent</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="makeBundle2"></a><span class='hs-comment'>-- | In makeBundle2, it is presumed that the two patch sequences are</span>
<a name="line-76"></a><span class='hs-comment'>-- identical, but that they may be lazily generated. If two different</span>
<a name="line-77"></a><span class='hs-comment'>-- patch sequences are passed, a bundle with a mismatched hash will be</span>
<a name="line-78"></a><span class='hs-comment'>-- generated, which is not the end of the world, but isn't very useful</span>
<a name="line-79"></a><span class='hs-comment'>-- either.</span>
<a name="line-80"></a><span class='hs-definition'>makeBundle2</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>Tree</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tree</span> <span class='hs-conid'>IO</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-81"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Doc</span>
<a name="line-82"></a><span class='hs-definition'>makeBundle2</span> <span class='hs-varid'>the_s</span> <span class='hs-varid'>common'</span> <span class='hs-varid'>to_be_sent</span> <span class='hs-varid'>to_be_sent2</span> <span class='hs-keyglyph'>=</span>
<a name="line-83"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>patches</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>the_s</span> <span class='hs-keyword'>of</span>
<a name="line-84"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>tree</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fst</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>virtualTreeIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>showContextPatch</span> <span class='hs-varid'>to_be_sent</span><span class='hs-layout'>)</span> <span class='hs-varid'>tree</span>
<a name="line-85"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>vsep</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mapFL</span> <span class='hs-varid'>showPatch</span> <span class='hs-varid'>to_be_sent</span><span class='hs-layout'>)</span>
<a name="line-86"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>format</span> <span class='hs-varid'>patches</span>
<a name="line-87"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>format</span> <span class='hs-varid'>the_new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-88"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"New patches:"</span>
<a name="line-89"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-90"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>the_new</span>
<a name="line-91"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-92"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Context:"</span>
<a name="line-93"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-94"></a> <span class='hs-varop'>$$</span> <span class='hs-layout'>(</span><span class='hs-varid'>vcat</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>showPatchInfo</span> <span class='hs-varid'>common</span><span class='hs-layout'>)</span>
<a name="line-95"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Patch bundle hash:"</span>
<a name="line-96"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-layout'>(</span><span class='hs-varid'>hashBundle</span> <span class='hs-varid'>to_be_sent2</span><span class='hs-layout'>)</span>
<a name="line-97"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-98"></a> <span class='hs-varid'>common</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapRL</span> <span class='hs-varid'>info</span> <span class='hs-varid'>common'</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="parseBundle"></a><span class='hs-definition'>parseBundle</span> <span class='hs-keyglyph'>::</span><span class='hs-keyword'>forall</span> <span class='hs-varid'>p</span><span class='hs-varop'>.</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-101"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conop'>:></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-102"></a><span class='hs-definition'>parseBundle</span> <span class='hs-varid'>ps</span>
<a name="line-103"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Left</span> <span class='hs-str'>"Bad patch bundle!"</span>
<a name="line-104"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-105"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>sillyLex</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-106"></a> <span class='hs-layout'>(</span><span class='hs-str'>"New patches:"</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-107"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getPatches</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-108"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>bracketedPatches</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-109"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>sillyLex</span> <span class='hs-varid'>rest'</span> <span class='hs-keyword'>of</span>
<a name="line-110"></a> <span class='hs-layout'>(</span><span class='hs-str'>"Context:"</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest''</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-111"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getContext</span> <span class='hs-varid'>rest''</span> <span class='hs-keyword'>of</span>
<a name="line-112"></a> <span class='hs-layout'>(</span><span class='hs-varid'>cont</span><span class='hs-layout'>,</span><span class='hs-varid'>maybe_hash</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-113"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>substrPS</span> <span class='hs-layout'>(</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"Patch bundle hash:"</span><span class='hs-layout'>)</span>
<a name="line-114"></a> <span class='hs-varid'>maybe_hash</span> <span class='hs-keyword'>of</span>
<a name="line-115"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span>
<a name="line-116"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>hashBundle</span> <span class='hs-layout'>(</span><span class='hs-varid'>mapFL_FL</span> <span class='hs-varid'>hopefully</span> <span class='hs-varid'>bracketedPatches</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varop'>==</span> <span class='hs-varid'>fst</span> <span class='hs-layout'>(</span><span class='hs-varid'>sillyLex</span> <span class='hs-varop'>$</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sillyLex</span> <span class='hs-varop'>$</span>
<a name="line-118"></a> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-varid'>n</span> <span class='hs-varid'>maybe_hash</span><span class='hs-layout'>)</span>
<a name="line-119"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sealContextWithPatches</span> <span class='hs-varid'>cont</span> <span class='hs-varid'>bracketedPatches</span>
<a name="line-120"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span>
<a name="line-121"></a> <span class='hs-str'>"Patch bundle failed hash!\n"</span> <span class='hs-varop'>++</span>
<a name="line-122"></a> <span class='hs-str'>"This probably means that the patch has been "</span><span class='hs-varop'>++</span>
<a name="line-123"></a> <span class='hs-str'>"corrupted by a mailer.\n"</span><span class='hs-varop'>++</span>
<a name="line-124"></a> <span class='hs-str'>"The most likely culprit is CRLF newlines."</span>
<a name="line-125"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sealContextWithPatches</span> <span class='hs-varid'>cont</span> <span class='hs-varid'>bracketedPatches</span>
<a name="line-126"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Malformed patch bundle: '"</span><span class='hs-varop'>++</span><span class='hs-varid'>a</span><span class='hs-varop'>++</span><span class='hs-str'>"' is not 'Context:'"</span>
<a name="line-127"></a> <span class='hs-varop'>++</span> <span class='hs-str'>"\n"</span> <span class='hs-varop'>++</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>r</span>
<a name="line-128"></a> <span class='hs-layout'>(</span><span class='hs-str'>"Context:"</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-129"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getContext</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-130"></a> <span class='hs-layout'>(</span><span class='hs-varid'>cont</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-131"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>sillyLex</span> <span class='hs-varid'>rest'</span> <span class='hs-keyword'>of</span>
<a name="line-132"></a> <span class='hs-layout'>(</span><span class='hs-str'>"New patches:"</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest''</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-133"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getPatches</span> <span class='hs-varid'>rest''</span> <span class='hs-keyword'>of</span>
<a name="line-134"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>bracketedPatches</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>sealContextWithPatches</span> <span class='hs-varid'>cont</span> <span class='hs-varid'>bracketedPatches</span>
<a name="line-135"></a> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Malformed patch bundle: '"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span>
<a name="line-136"></a> <span class='hs-str'>"' is not 'New patches:'"</span>
<a name="line-137"></a> <span class='hs-layout'>(</span><span class='hs-str'>"-----BEGIN PGP SIGNED MESSAGE-----"</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-138"></a> <span class='hs-varid'>parseBundle</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filterGpgDashes</span> <span class='hs-varid'>rest</span>
<a name="line-139"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>parseBundle</span> <span class='hs-varid'>rest</span>
<a name="line-140"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>sealContextWithPatches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PatchInfo</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bracketed</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conop'>:></span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-141"></a> <span class='hs-varid'>sealContextWithPatches</span> <span class='hs-varid'>context</span> <span class='hs-varid'>bracketedPatches</span> <span class='hs-keyglyph'>=</span>
<a name="line-142"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>patches</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapFL_FL</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmapFL_PIAP</span> <span class='hs-varid'>unBracketedFL</span><span class='hs-layout'>)</span> <span class='hs-varid'>bracketedPatches</span> <span class='hs-keyword'>in</span>
<a name="line-143"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>reverse</span> <span class='hs-varid'>context</span> <span class='hs-keyword'>of</span>
<a name="line-144"></a> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>ry</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isTag</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span>
<a name="line-145"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span>
<a name="line-146"></a> <span class='hs-layout'>(</span><span class='hs-varid'>unavailablePatches</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverse</span> <span class='hs-varid'>ry</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-147"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-layout'>(</span><span class='hs-varid'>piUnavailable</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>NilRL</span> <span class='hs-conop'>:<:</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span>
<a name="line-148"></a> <span class='hs-conop'>:></span> <span class='hs-varid'>patches</span><span class='hs-layout'>)</span>
<a name="line-149"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>unavailablePatches</span> <span class='hs-varid'>context</span><span class='hs-layout'>)</span>
<a name="line-150"></a> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-conop'>:></span> <span class='hs-varid'>patches</span><span class='hs-layout'>)</span>
<a name="line-151"></a> <span class='hs-comment'>-- The above NilRLs aren't quite right, because ther *are*</span>
<a name="line-152"></a> <span class='hs-comment'>-- earlier patches, but we can't set this to undefined</span>
<a name="line-153"></a> <span class='hs-comment'>-- because there are situations where we look at the rest.</span>
<a name="line-154"></a> <span class='hs-comment'>-- :{</span>
<a name="line-155"></a>
<a name="line-156"></a>
<a name="line-157"></a><a name="scanBundle"></a><span class='hs-definition'>scanBundle</span> <span class='hs-keyglyph'>::</span><span class='hs-keyword'>forall</span> <span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-158"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-159"></a><span class='hs-definition'>scanBundle</span> <span class='hs-varid'>bundle</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-160"></a> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>recent</span> <span class='hs-varid'>tagged</span><span class='hs-layout'>)</span><span class='hs-conop'>:></span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parseBundle</span> <span class='hs-varid'>bundle</span>
<a name="line-161"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Sealed</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>reverseFL</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>+<+</span> <span class='hs-varid'>recent</span><span class='hs-layout'>)</span> <span class='hs-varid'>tagged</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="filterGpgDashes"></a><span class='hs-comment'>-- |filterGpgDashes unescapes a clearsigned patch, which will have had any</span>
<a name="line-164"></a><span class='hs-comment'>-- lines starting with dashes escaped with a leading "- ".</span>
<a name="line-165"></a><span class='hs-definition'>filterGpgDashes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-166"></a><span class='hs-definition'>filterGpgDashes</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span>
<a name="line-167"></a> <span class='hs-varid'>unlinesPS</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>drop_dashes</span> <span class='hs-varop'>$</span>
<a name="line-168"></a> <span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"-----END PGP SIGNED MESSAGE-----"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-169"></a> <span class='hs-varid'>dropWhile</span> <span class='hs-varid'>not_context_or_newpatches</span> <span class='hs-varop'>$</span> <span class='hs-varid'>linesPS</span> <span class='hs-varid'>ps</span>
<a name="line-170"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>drop_dashes</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>x</span> <span class='hs-varop'><</span> <span class='hs-num'>2</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>x</span>
<a name="line-171"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"- "</span> <span class='hs-varop'>`</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>isPrefixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>x</span>
<a name="line-172"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-num'>2</span> <span class='hs-varid'>x</span>
<a name="line-173"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>x</span>
<a name="line-174"></a> <span class='hs-varid'>not_context_or_newpatches</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"Context:"</span><span class='hs-layout'>)</span> <span class='hs-varop'>&&</span>
<a name="line-175"></a> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-varop'>/=</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"New patches:"</span><span class='hs-layout'>)</span>
<a name="line-176"></a>
<a name="line-177"></a><a name="unavailablePatches"></a><span class='hs-comment'>-- |unavailablePatches converts a list of PatchInfos into a RL of PatchInfoAnd</span>
<a name="line-178"></a><span class='hs-comment'>-- Unavailable patches. This is used to represent the Context of a patchBundle.</span>
<a name="line-179"></a><span class='hs-definition'>unavailablePatches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PatchInfo</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-180"></a><span class='hs-definition'>unavailablePatches</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-conid'>NilRL</span>
<a name="line-181"></a><span class='hs-definition'>unavailablePatches</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-varid'>piUnavailable</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>unavailablePatches</span> <span class='hs-varid'>xs</span>
<a name="line-182"></a>
<a name="line-183"></a><a name="piUnavailable"></a><span class='hs-comment'>-- |piUnavailable returns an Unavailable within a PatchInfoAnd given a</span>
<a name="line-184"></a><span class='hs-comment'>-- PatchInfo.</span>
<a name="line-185"></a><span class='hs-definition'>piUnavailable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PatchInfo</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-186"></a><span class='hs-definition'>piUnavailable</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>`patchInfoAndPatch`</span>
<a name="line-187"></a> <span class='hs-varid'>unavailable</span> <span class='hs-layout'>(</span><span class='hs-str'>"Patch not stored in patch bundle:\n"</span> <span class='hs-varop'>++</span>
<a name="line-188"></a> <span class='hs-varid'>renderString</span> <span class='hs-layout'>(</span><span class='hs-varid'>humanFriendly</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="getContext"></a><span class='hs-comment'>-- |getContext parses a context list, returning a tuple containing the list,</span>
<a name="line-191"></a><span class='hs-comment'>-- and remaining ByteString input.</span>
<a name="line-192"></a><span class='hs-definition'>getContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>PatchInfo</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-193"></a><span class='hs-definition'>getContext</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span>
<a name="line-194"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-varid'>readPatchInfo</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-195"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>pinfo</span><span class='hs-layout'>,</span><span class='hs-varid'>r'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-196"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getContext</span> <span class='hs-varid'>r'</span> <span class='hs-keyword'>of</span>
<a name="line-197"></a> <span class='hs-layout'>(</span><span class='hs-varid'>pis</span><span class='hs-layout'>,</span><span class='hs-varid'>r''</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>pinfo</span><span class='hs-conop'>:</span><span class='hs-varid'>pis</span><span class='hs-layout'>,</span> <span class='hs-varid'>r''</span><span class='hs-layout'>)</span>
<a name="line-198"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>[]</span><span class='hs-layout'>,</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-199"></a>
<a name="line-200"></a><a name="-:-"></a><span class='hs-comment'>-- |(-:-) is used to build up a Sealed FL of patches and tuple it, along with</span>
<a name="line-201"></a><span class='hs-comment'>-- any unconsumed input.</span>
<a name="line-202"></a><span class='hs-layout'>(</span><span class='hs-varop'>-:-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>a</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</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-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>a</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-203"></a><a name="p"></a><span class='hs-definition'>p</span> <span class='hs-varop'>-:-</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>ps</span><span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span>
<a name="line-204"></a>
<a name="line-205"></a><a name="getPatches"></a><span class='hs-comment'>-- |getPatches attempts to parse a sequence of patches from a ByteString,</span>
<a name="line-206"></a><span class='hs-comment'>-- returning the FL of as many patches-with-info as were successfully parsed,</span>
<a name="line-207"></a><span class='hs-comment'>-- along with any unconsumed input.</span>
<a name="line-208"></a><span class='hs-definition'>getPatches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bracketed</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-209"></a><span class='hs-definition'>getPatches</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span>
<a name="line-210"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-varid'>readPatchInfo</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-211"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-conid'>NilFL</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-212"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>pinfo</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-213"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>readPatchPartial</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-214"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-conid'>NilFL</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-215"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>pinfo</span> <span class='hs-varop'>`piap`</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>-:-</span> <span class='hs-varid'>getPatches</span> <span class='hs-varid'>r</span>
<a name="line-216"></a>
<a name="line-217"></a><a name="sillyLex"></a><span class='hs-comment'>-- |sillyLex takes a ByteString and breaks it upon the first newline, having</span>
<a name="line-218"></a><span class='hs-comment'>-- removed any leading spaces. The before-newline part is unpacked to a String,</span>
<a name="line-219"></a><span class='hs-comment'>-- and tupled up with the remaining ByteString. </span>
<a name="line-220"></a><span class='hs-definition'>sillyLex</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-221"></a><span class='hs-definition'>sillyLex</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</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-222"></a> <span class='hs-keyword'>where</span>
<a name="line-223"></a> <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-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropSpace</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-224"></a>
<a name="line-225"></a><a name="contextPatches"></a><span class='hs-definition'>contextPatches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-226"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conop'>:></span> <span class='hs-layout'>(</span><span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-227"></a><span class='hs-definition'>contextPatches</span> <span class='hs-varid'>set</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>slightlyOptimizePatchset</span> <span class='hs-varid'>set</span> <span class='hs-keyword'>of</span>
<a name="line-228"></a> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps'</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-229"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps'</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-conop'>:></span> <span class='hs-layout'>(</span><span class='hs-varid'>ps</span> <span class='hs-varop'>+<+</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span> <span class='hs-conop'>:<:</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-230"></a> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-conid'>NilRL</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span> <span class='hs-conop'>:></span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-231"></a>
<a name="line-232"></a><a name="scanContext"></a><span class='hs-comment'>-- are the type witnesses sensible?</span>
<a name="line-233"></a><span class='hs-definition'>scanContext</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-234"></a><span class='hs-definition'>scanContext</span> <span class='hs-varid'>ps</span>
<a name="line-235"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Bad context!"</span>
<a name="line-236"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-237"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>sillyLex</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-238"></a> <span class='hs-layout'>(</span><span class='hs-str'>"Context:"</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-239"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getContext</span> <span class='hs-varid'>rest</span> <span class='hs-keyword'>of</span>
<a name="line-240"></a> <span class='hs-layout'>(</span><span class='hs-varid'>cont</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isTag</span> <span class='hs-layout'>(</span><span class='hs-varid'>last</span> <span class='hs-varid'>cont</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-241"></a> <span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>unavailablePatches</span> <span class='hs-varop'>$</span> <span class='hs-varid'>init</span> <span class='hs-varid'>cont</span><span class='hs-layout'>)</span>
<a name="line-242"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-layout'>(</span><span class='hs-varid'>piUnavailable</span> <span class='hs-varop'>$</span> <span class='hs-varid'>last</span> <span class='hs-varid'>cont</span><span class='hs-layout'>)</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>NilRL</span> <span class='hs-conop'>:<:</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span>
<a name="line-243"></a> <span class='hs-layout'>(</span><span class='hs-varid'>cont</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>unavailablePatches</span> <span class='hs-varid'>cont</span><span class='hs-layout'>)</span> <span class='hs-conid'>NilRL</span>
<a name="line-244"></a> <span class='hs-layout'>(</span><span class='hs-str'>"-----BEGIN PGP SIGNED MESSAGE-----"</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-245"></a> <span class='hs-varid'>scanContext</span> <span class='hs-varop'>$</span> <span class='hs-varid'>filterGpgDashes</span> <span class='hs-varid'>rest</span>
<a name="line-246"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>rest</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>scanContext</span> <span class='hs-varid'>rest</span>
<a name="line-247"></a>
<a name="line-248"></a><a name="patchFilename"></a><span class='hs-comment'>-- |patchFilename maps a patch description string to a safe (lowercased, spaces</span>
<a name="line-249"></a><span class='hs-comment'>-- removed and ascii-only characters) patch filename.</span>
<a name="line-250"></a><span class='hs-definition'>patchFilename</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-251"></a><span class='hs-definition'>patchFilename</span> <span class='hs-varid'>the_summary</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>name</span> <span class='hs-varop'>++</span> <span class='hs-str'>".dpatch"</span>
<a name="line-252"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>safeFileChar</span> <span class='hs-varid'>the_summary</span>
<a name="line-253"></a> <span class='hs-varid'>safeFileChar</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isAlpha</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toLower</span> <span class='hs-varid'>c</span>
<a name="line-254"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isDigit</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span>
<a name="line-255"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isSpace</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'-'</span>
<a name="line-256"></a> <span class='hs-varid'>safeFileChar</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-chr'>'_'</span>
</pre></body>
</html>
