<?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/Commands/Help.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 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-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span><span class='hs-varop'>.</span><span class='hs-conid'>Help</span> <span class='hs-layout'>(</span>
<a name="line-19"></a> <span class='hs-varid'>helpCmd</span><span class='hs-layout'>,</span>
<a name="line-20"></a> <span class='hs-varid'>commandControlList</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelp</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- these are for preproc.hs</span>
<a name="line-21"></a> <span class='hs-varid'>printVersion</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>listAvailableCommands</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-23"></a>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Arguments</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsFlag</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpEmail</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpSendmail</span> <span class='hs-layout'>)</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Commands</span> <span class='hs-layout'>(</span>
<a name="line-26"></a> <span class='hs-conid'>CommandArgs</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'>CommandControl</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'>DarcsCommand</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>disambiguateCommands</span><span class='hs-layout'>,</span> <span class='hs-varid'>extractCommands</span><span class='hs-layout'>,</span> <span class='hs-varid'>getCommandHelp</span><span class='hs-layout'>,</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span> <span class='hs-varid'>usage</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'>External</span> <span class='hs-layout'>(</span> <span class='hs-varid'>viewDoc</span> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Lock</span> <span class='hs-layout'>(</span> <span class='hs-varid'>environmentHelpTmpdir</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpKeepTmpdir</span> <span class='hs-layout'>)</span>
<a name="line-30"></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'>Match</span> <span class='hs-layout'>(</span> <span class='hs-varid'>helpOnMatchers</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'>Repository</span><span class='hs-varop'>.</span><span class='hs-conid'>Prefs</span> <span class='hs-layout'>(</span> <span class='hs-varid'>boringFileHelp</span><span class='hs-layout'>,</span> <span class='hs-varid'>binariesFileHelp</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpHome</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'>Ssh</span> <span class='hs-layout'>(</span> <span class='hs-varid'>environmentHelpSsh</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpScp</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpSshPort</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'>Utils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>withCurrentDirectory</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpEditor</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpPager</span> <span class='hs-layout'>)</span>
<a name="line-34"></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'>isAlphaNum</span><span class='hs-layout'>,</span> <span class='hs-varid'>toLower</span><span class='hs-layout'>,</span> <span class='hs-varid'>toUpper</span> <span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>groupBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>isPrefixOf</span><span class='hs-layout'>,</span> <span class='hs-varid'>intercalate</span><span class='hs-layout'>,</span> <span class='hs-varid'>nub</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>English</span> <span class='hs-layout'>(</span> <span class='hs-varid'>andClauses</span> <span class='hs-layout'>)</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Printer</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</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-layout'>(</span><span class='hs-varop'>$$</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Exit</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ExitCode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>exitWith</span> <span class='hs-layout'>)</span>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Version</span> <span class='hs-layout'>(</span> <span class='hs-varid'>version</span> <span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>URL</span> <span class='hs-layout'>(</span><span class='hs-varid'>environmentHelpProxy</span><span class='hs-layout'>,</span> <span class='hs-varid'>environmentHelpProxyPassword</span><span class='hs-layout'>)</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Workaround</span> <span class='hs-layout'>(</span> <span class='hs-varid'>getCurrentDirectory</span> <span class='hs-layout'>)</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>TheCommands</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>TheCommands</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="helpDescription"></a><span class='hs-definition'>helpDescription</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-45"></a><span class='hs-definition'>helpDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Display help about darcs and darcs commands."</span>
<a name="line-46"></a>
<a name="line-47"></a><a name="helpHelp"></a><span class='hs-definition'>helpHelp</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span>
<a name="line-48"></a><span class='hs-definition'>helpHelp</span> <span class='hs-keyglyph'>=</span>
<a name="line-49"></a> <span class='hs-str'>"Without arguments, `darcs help' prints a categorized list of darcs\n"</span> <span class='hs-varop'>++</span>
<a name="line-50"></a> <span class='hs-str'>"commands and a short description of each one. With an extra argument,\n"</span> <span class='hs-varop'>++</span>
<a name="line-51"></a> <span class='hs-str'>"`darcs help foo' prints detailed help about the darcs command foo.\n"</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="help"></a><span class='hs-definition'>help</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DarcsCommand</span>
<a name="line-54"></a><span class='hs-definition'>help</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-layout'>{</span><span class='hs-varid'>commandProgramName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"darcs"</span><span class='hs-layout'>,</span>
<a name="line-55"></a> <span class='hs-varid'>commandName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"help"</span><span class='hs-layout'>,</span>
<a name="line-56"></a> <span class='hs-varid'>commandHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>helpHelp</span><span class='hs-layout'>,</span>
<a name="line-57"></a> <span class='hs-varid'>commandDescription</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>helpDescription</span><span class='hs-layout'>,</span>
<a name="line-58"></a> <span class='hs-varid'>commandExtraArgs</span> <span class='hs-keyglyph'>=</span> <span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>,</span>
<a name="line-59"></a> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"[<DARCS_COMMAND> [DARCS_SUBCOMMAND]] "</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span>
<a name="line-60"></a> <span class='hs-varid'>commandCommand</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>helpCmd</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varop'>>></span> <span class='hs-varid'>exitWith</span> <span class='hs-conid'>ExitSuccess</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>commandPrereq</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-62"></a> <span class='hs-varid'>commandGetArgPossibilities</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-63"></a> <span class='hs-varid'>commandArgdefaults</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nodefaults</span><span class='hs-layout'>,</span>
<a name="line-64"></a> <span class='hs-varid'>commandAdvancedOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span><span class='hs-layout'>,</span>
<a name="line-65"></a> <span class='hs-varid'>commandBasicOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span><span class='hs-layout'>}</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="helpCmd"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-68"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"manpage"</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>putStr</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unlines</span> <span class='hs-varid'>manpageLines</span>
<a name="line-69"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"patterns"</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>viewDoc</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-varop'>$</span> <span class='hs-varid'>helpOnMatchers</span>
<a name="line-70"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-str'>"environment"</span><span class='hs-conop'>:</span><span class='hs-varid'>vs_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-71"></a> <span class='hs-varid'>viewDoc</span> <span class='hs-varop'>.</span> <span class='hs-varid'>vsep</span> <span class='hs-varop'>$</span>
<a name="line-72"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>null</span> <span class='hs-varid'>vs</span>
<a name="line-73"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>header</span> <span class='hs-conop'>:</span> <span class='hs-varid'>map</span> <span class='hs-varid'>render</span> <span class='hs-varid'>environmentHelp</span>
<a name="line-74"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>map</span> <span class='hs-varid'>render</span> <span class='hs-varid'>known</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>footer</span><span class='hs-keyglyph'>]</span>
<a name="line-75"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>header</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>vcat</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>text</span> <span class='hs-str'>"Environment Variables"</span>
<a name="line-76"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>text</span> <span class='hs-str'>"====================="</span>
<a name="line-77"></a> <span class='hs-keyglyph'>]</span>
<a name="line-78"></a> <span class='hs-varid'>footer</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>text</span> <span class='hs-layout'>(</span><span class='hs-str'>"Unknown environment variables: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>intercalate</span> <span class='hs-str'>", "</span> <span class='hs-varid'>unknown</span><span class='hs-layout'>)</span>
<a name="line-79"></a> <span class='hs-varid'>render</span> <span class='hs-layout'>(</span><span class='hs-varid'>ks</span><span class='hs-layout'>,</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>text</span> <span class='hs-layout'>(</span><span class='hs-varid'>andClauses</span> <span class='hs-varid'>ks</span> <span class='hs-varop'>++</span> <span class='hs-str'>":"</span><span class='hs-layout'>)</span> <span class='hs-varop'>$$</span>
<a name="line-80"></a> <span class='hs-varid'>vcat</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>text</span> <span class='hs-layout'>(</span><span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>ds</span><span class='hs-keyglyph'>]</span>
<a name="line-81"></a> <span class='hs-varid'>lookupEnv</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>e</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-varid'>ks</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'>environmentHelp</span><span class='hs-layout'>,</span> <span class='hs-varid'>v</span> <span class='hs-varop'>`elem`</span> <span class='hs-varid'>ks</span> <span class='hs-keyglyph'>]</span>
<a name="line-82"></a> <span class='hs-varid'>unknown</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>vs</span><span class='hs-layout'>,</span> <span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-varid'>lookupEnv</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>]</span>
<a name="line-83"></a> <span class='hs-varid'>known</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nub</span> <span class='hs-layout'>(</span><span class='hs-varid'>concatMap</span> <span class='hs-varid'>lookupEnv</span> <span class='hs-varid'>vs</span><span class='hs-layout'>)</span>
<a name="line-84"></a> <span class='hs-varid'>vs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>toUpper</span><span class='hs-layout'>)</span> <span class='hs-varid'>vs_</span>
<a name="line-85"></a>
<a name="line-86"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>viewDoc</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-varop'>$</span> <span class='hs-varid'>usage</span> <span class='hs-varid'>commandControlList</span>
<a name="line-87"></a>
<a name="line-88"></a><span class='hs-definition'>helpCmd</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmd</span><span class='hs-conop'>:</span><span class='hs-varid'>args</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-89"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>disambiguated</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>disambiguateCommands</span> <span class='hs-varid'>commandControlList</span> <span class='hs-varid'>cmd</span> <span class='hs-varid'>args</span>
<a name="line-90"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>disambiguated</span> <span class='hs-keyword'>of</span>
<a name="line-91"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>err</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-varid'>err</span>
<a name="line-92"></a> <span class='hs-conid'>Right</span> <span class='hs-layout'>(</span><span class='hs-varid'>cmds</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-93"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>msg</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>cmds</span> <span class='hs-keyword'>of</span>
<a name="line-94"></a> <span class='hs-conid'>CommandOnly</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>getCommandHelp</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>c</span>
<a name="line-95"></a> <span class='hs-conid'>SuperCommandOnly</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>getCommandHelp</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>c</span>
<a name="line-96"></a> <span class='hs-conid'>SuperCommandSub</span> <span class='hs-varid'>c</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>getCommandHelp</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span>
<a name="line-97"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>viewDoc</span> <span class='hs-varop'>$</span> <span class='hs-varid'>text</span> <span class='hs-varid'>msg</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="listAvailableCommands"></a><span class='hs-definition'>listAvailableCommands</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-100"></a><span class='hs-definition'>listAvailableCommands</span> <span class='hs-keyglyph'>=</span>
<a name="line-101"></a> <span class='hs-keyword'>do</span> <span class='hs-varid'>here</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getCurrentDirectory</span>
<a name="line-102"></a> <span class='hs-varid'>is_valid</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span>
<a name="line-103"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>-></span> <span class='hs-varid'>withCurrentDirectory</span> <span class='hs-varid'>here</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandPrereq</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-layout'>(</span><span class='hs-varid'>extractCommands</span> <span class='hs-varid'>commandControlList</span><span class='hs-layout'>)</span>
<a name="line-105"></a> <span class='hs-varid'>putStr</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unlines</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fst</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-106"></a> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>isRight</span><span class='hs-varop'>.</span><span class='hs-varid'>snd</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-107"></a> <span class='hs-varid'>zip</span> <span class='hs-layout'>(</span><span class='hs-varid'>extractCommands</span> <span class='hs-varid'>commandControlList</span><span class='hs-layout'>)</span> <span class='hs-varid'>is_valid</span>
<a name="line-108"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"--help"</span>
<a name="line-109"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"--version"</span>
<a name="line-110"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"--exact-version"</span>
<a name="line-111"></a> <span class='hs-varid'>putStrLn</span> <span class='hs-str'>"--overview"</span>
<a name="line-112"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>isRight</span> <span class='hs-layout'>(</span><span class='hs-conid'>Right</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-113"></a> <span class='hs-varid'>isRight</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="printVersion"></a><span class='hs-definition'>printVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-116"></a><span class='hs-definition'>printVersion</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>putStrLn</span> <span class='hs-varop'>$</span> <span class='hs-str'>"darcs version "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>version</span>
<a name="line-117"></a>
<a name="line-118"></a><a name="commandControlList"></a><span class='hs-comment'>-- avoiding a module import cycle between Help and TheCommands</span>
<a name="line-119"></a><span class='hs-definition'>commandControlList</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>CommandControl</span><span class='hs-keyglyph'>]</span>
<a name="line-120"></a><span class='hs-definition'>commandControlList</span> <span class='hs-keyglyph'>=</span>
<a name="line-121"></a> <span class='hs-conid'>CommandData</span> <span class='hs-varid'>help</span> <span class='hs-conop'>:</span> <span class='hs-conid'>TheCommands</span><span class='hs-varop'>.</span><span class='hs-varid'>commandControlList</span>
<a name="line-122"></a>
<a name="line-123"></a><span class='hs-comment'>-- FIXME: the "grouping" comments below should made subsections in the</span>
<a name="line-124"></a><span class='hs-comment'>-- manpage, as we already do for DarcsCommand groups. --twb, 2009</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="environmentHelp"></a><span class='hs-comment'>-- | Help on each environment variable in which Darcs is interested.</span>
<a name="line-127"></a><span class='hs-definition'>environmentHelp</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-128"></a><span class='hs-definition'>environmentHelp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span>
<a name="line-129"></a> <span class='hs-comment'>-- General-purpose</span>
<a name="line-130"></a> <span class='hs-varid'>environmentHelpHome</span><span class='hs-layout'>,</span>
<a name="line-131"></a> <span class='hs-varid'>environmentHelpEditor</span><span class='hs-layout'>,</span>
<a name="line-132"></a> <span class='hs-varid'>environmentHelpPager</span><span class='hs-layout'>,</span>
<a name="line-133"></a> <span class='hs-varid'>environmentHelpTmpdir</span><span class='hs-layout'>,</span>
<a name="line-134"></a> <span class='hs-varid'>environmentHelpKeepTmpdir</span><span class='hs-layout'>,</span>
<a name="line-135"></a> <span class='hs-varid'>environmentHelpEmail</span><span class='hs-layout'>,</span>
<a name="line-136"></a> <span class='hs-varid'>environmentHelpSendmail</span><span class='hs-layout'>,</span>
<a name="line-137"></a> <span class='hs-comment'>-- Remote Repositories</span>
<a name="line-138"></a> <span class='hs-varid'>environmentHelpSsh</span><span class='hs-layout'>,</span>
<a name="line-139"></a> <span class='hs-varid'>environmentHelpScp</span><span class='hs-layout'>,</span>
<a name="line-140"></a> <span class='hs-varid'>environmentHelpSshPort</span><span class='hs-layout'>,</span>
<a name="line-141"></a> <span class='hs-varid'>environmentHelpProxy</span><span class='hs-layout'>,</span>
<a name="line-142"></a> <span class='hs-varid'>environmentHelpProxyPassword</span><span class='hs-keyglyph'>]</span>
<a name="line-143"></a>
<a name="line-144"></a><span class='hs-comment'>-- | This module is responsible for emitting a darcs "man-page", a</span>
<a name="line-145"></a><span class='hs-comment'>-- reference document used widely on Unix-like systems. Manpages are</span>
<a name="line-146"></a><span class='hs-comment'>-- primarily used as a quick reference, or "memory jogger", so the</span>
<a name="line-147"></a><span class='hs-comment'>-- output should be terser than the user manual.</span>
<a name="line-148"></a><span class='hs-comment'>--</span>
<a name="line-149"></a><span class='hs-comment'>-- Before modifying the output, please be sure to read the man(7) and</span>
<a name="line-150"></a><span class='hs-comment'>-- man-pages(7) manpages, as these respectively describe the relevant</span>
<a name="line-151"></a><span class='hs-comment'>-- syntax and conventions.</span>
<a name="line-152"></a>
<a name="line-153"></a><a name="manpageLines"></a><span class='hs-comment'>-- | The lines of the manpage to be printed.</span>
<a name="line-154"></a><span class='hs-definition'>manpageLines</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-155"></a><span class='hs-definition'>manpageLines</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span>
<a name="line-156"></a> <span class='hs-str'>".TH DARCS 1 \""</span> <span class='hs-varop'>++</span> <span class='hs-varid'>version</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span><span class='hs-layout'>,</span>
<a name="line-157"></a> <span class='hs-str'>".SH NAME"</span><span class='hs-layout'>,</span>
<a name="line-158"></a> <span class='hs-str'>"darcs \\- an advanced revision control system"</span><span class='hs-layout'>,</span>
<a name="line-159"></a> <span class='hs-str'>".SH SYNOPSIS"</span><span class='hs-layout'>,</span>
<a name="line-160"></a> <span class='hs-str'>".B darcs"</span><span class='hs-layout'>,</span> <span class='hs-str'>".I command"</span><span class='hs-layout'>,</span> <span class='hs-str'>".RI < arguments |[ options ]>..."</span><span class='hs-layout'>,</span>
<a name="line-161"></a> <span class='hs-str'>""</span><span class='hs-layout'>,</span>
<a name="line-162"></a> <span class='hs-str'>"Where the"</span><span class='hs-layout'>,</span> <span class='hs-str'>".I commands"</span><span class='hs-layout'>,</span> <span class='hs-str'>"and their respective"</span><span class='hs-layout'>,</span> <span class='hs-str'>".I arguments"</span><span class='hs-layout'>,</span> <span class='hs-str'>"are"</span><span class='hs-layout'>,</span>
<a name="line-163"></a> <span class='hs-str'>""</span><span class='hs-layout'>,</span>
<a name="line-164"></a> <span class='hs-varid'>unlines</span> <span class='hs-varid'>synopsis</span><span class='hs-layout'>,</span>
<a name="line-165"></a> <span class='hs-str'>".SH DESCRIPTION"</span><span class='hs-layout'>,</span>
<a name="line-166"></a> <span class='hs-comment'>-- FIXME: this is copy-and-pasted from darcs.cabal, so</span>
<a name="line-167"></a> <span class='hs-comment'>-- it'll get out of date as people forget to maintain</span>
<a name="line-168"></a> <span class='hs-comment'>-- both in sync.</span>
<a name="line-169"></a> <span class='hs-str'>"Darcs is a free, open source revision control"</span><span class='hs-layout'>,</span>
<a name="line-170"></a> <span class='hs-str'>"system. It is:"</span><span class='hs-layout'>,</span>
<a name="line-171"></a> <span class='hs-str'>".TP 3"</span><span class='hs-layout'>,</span> <span class='hs-str'>"\\(bu"</span><span class='hs-layout'>,</span>
<a name="line-172"></a> <span class='hs-str'>"Distributed: Every user has access to the full"</span><span class='hs-layout'>,</span>
<a name="line-173"></a> <span class='hs-str'>"command set, removing boundaries between server and"</span><span class='hs-layout'>,</span>
<a name="line-174"></a> <span class='hs-str'>"client or committer and non\\(hycommitters."</span><span class='hs-layout'>,</span>
<a name="line-175"></a> <span class='hs-str'>".TP"</span><span class='hs-layout'>,</span> <span class='hs-str'>"\\(bu"</span><span class='hs-layout'>,</span>
<a name="line-176"></a> <span class='hs-str'>"Interactive: Darcs is easy to learn and efficient to"</span><span class='hs-layout'>,</span>
<a name="line-177"></a> <span class='hs-str'>"use because it asks you questions in response to"</span><span class='hs-layout'>,</span>
<a name="line-178"></a> <span class='hs-str'>"simple commands, giving you choices in your work"</span><span class='hs-layout'>,</span>
<a name="line-179"></a> <span class='hs-str'>"flow. You can choose to record one change in a file,"</span><span class='hs-layout'>,</span>
<a name="line-180"></a> <span class='hs-str'>"while ignoring another. As you update from upstream,"</span><span class='hs-layout'>,</span>
<a name="line-181"></a> <span class='hs-str'>"you can review each patch name, even the full `diff'"</span><span class='hs-layout'>,</span>
<a name="line-182"></a> <span class='hs-str'>"for interesting patches."</span><span class='hs-layout'>,</span>
<a name="line-183"></a> <span class='hs-str'>".TP"</span><span class='hs-layout'>,</span> <span class='hs-str'>"\\(bu"</span><span class='hs-layout'>,</span>
<a name="line-184"></a> <span class='hs-str'>"Smart: Originally developed by physicist David"</span><span class='hs-layout'>,</span>
<a name="line-185"></a> <span class='hs-str'>"Roundy, darcs is based on a unique algebra of"</span><span class='hs-layout'>,</span>
<a name="line-186"></a> <span class='hs-str'>"patches."</span><span class='hs-layout'>,</span>
<a name="line-187"></a> <span class='hs-str'>"This smartness lets you respond to changing demands"</span><span class='hs-layout'>,</span>
<a name="line-188"></a> <span class='hs-str'>"in ways that would otherwise not be possible. Learn"</span><span class='hs-layout'>,</span>
<a name="line-189"></a> <span class='hs-str'>"more about spontaneous branches with darcs."</span><span class='hs-layout'>,</span>
<a name="line-190"></a> <span class='hs-str'>".SH OPTIONS"</span><span class='hs-layout'>,</span>
<a name="line-191"></a> <span class='hs-str'>"Different options are accepted by different Darcs commands."</span><span class='hs-layout'>,</span>
<a name="line-192"></a> <span class='hs-str'>"Each command's most important options are listed in the"</span><span class='hs-layout'>,</span>
<a name="line-193"></a> <span class='hs-str'>".B COMMANDS"</span><span class='hs-layout'>,</span>
<a name="line-194"></a> <span class='hs-str'>"section. For a full list of all options accepted by"</span><span class='hs-layout'>,</span>
<a name="line-195"></a> <span class='hs-str'>"a particular command, run `darcs"</span><span class='hs-layout'>,</span> <span class='hs-str'>".I command"</span><span class='hs-layout'>,</span> <span class='hs-str'>"\\-\\-help'."</span><span class='hs-layout'>,</span>
<a name="line-196"></a> <span class='hs-str'>".SS "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>helpOnMatchers</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- FIXME: this is a kludge.</span>
<a name="line-197"></a> <span class='hs-str'>".SH COMMANDS"</span><span class='hs-layout'>,</span>
<a name="line-198"></a> <span class='hs-varid'>unlines</span> <span class='hs-varid'>commands</span><span class='hs-layout'>,</span>
<a name="line-199"></a> <span class='hs-varid'>unlines</span> <span class='hs-varid'>environment</span><span class='hs-layout'>,</span>
<a name="line-200"></a> <span class='hs-str'>".SH FILES"</span><span class='hs-layout'>,</span>
<a name="line-201"></a> <span class='hs-str'>".SS \"_darcs/prefs/binaries\""</span><span class='hs-layout'>,</span>
<a name="line-202"></a> <span class='hs-varid'>escape</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unlines</span> <span class='hs-varid'>binariesFileHelp</span><span class='hs-layout'>,</span>
<a name="line-203"></a> <span class='hs-str'>".SS \"_darcs/prefs/boring\""</span><span class='hs-layout'>,</span>
<a name="line-204"></a> <span class='hs-varid'>escape</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unlines</span> <span class='hs-varid'>boringFileHelp</span><span class='hs-layout'>,</span>
<a name="line-205"></a> <span class='hs-str'>".SH BUGS"</span><span class='hs-layout'>,</span>
<a name="line-206"></a> <span class='hs-str'>"At http://bugs.darcs.net/ you can find a list of known"</span><span class='hs-layout'>,</span>
<a name="line-207"></a> <span class='hs-str'>"bugs in Darcs. Unknown bugs can be reported at that"</span><span class='hs-layout'>,</span>
<a name="line-208"></a> <span class='hs-str'>"site (after creating an account) or by emailing the"</span><span class='hs-layout'>,</span>
<a name="line-209"></a> <span class='hs-str'>"report to bugs@darcs.net."</span><span class='hs-layout'>,</span>
<a name="line-210"></a> <span class='hs-comment'>-- ".SH EXAMPLE",</span>
<a name="line-211"></a> <span class='hs-comment'>-- FIXME:</span>
<a name="line-212"></a> <span class='hs-comment'>-- new project: init, rec -la;</span>
<a name="line-213"></a> <span class='hs-comment'>-- track upstream project: get, pull -a;</span>
<a name="line-214"></a> <span class='hs-comment'>-- contribute to project: add, rec, push/send.</span>
<a name="line-215"></a> <span class='hs-str'>".SH SEE ALSO"</span><span class='hs-layout'>,</span>
<a name="line-216"></a> <span class='hs-str'>"A user manual is included with Darcs, in PDF and HTML"</span><span class='hs-layout'>,</span>
<a name="line-217"></a> <span class='hs-str'>"form. It can also be found at http://darcs.net/manual/."</span><span class='hs-layout'>,</span>
<a name="line-218"></a> <span class='hs-str'>".SH LICENSE"</span><span class='hs-layout'>,</span>
<a name="line-219"></a> <span class='hs-str'>"Darcs is free software; you can redistribute it and/or modify"</span><span class='hs-layout'>,</span>
<a name="line-220"></a> <span class='hs-str'>"it under the terms of the GNU General Public License as published by"</span><span class='hs-layout'>,</span>
<a name="line-221"></a> <span class='hs-str'>"the Free Software Foundation; either version 2, or (at your option)"</span><span class='hs-layout'>,</span>
<a name="line-222"></a> <span class='hs-str'>"any later version."</span> <span class='hs-keyglyph'>]</span>
<a name="line-223"></a> <span class='hs-keyword'>where</span>
<a name="line-224"></a> <span class='hs-comment'>-- | A synopsis line for each command. Uses 'foldl' because it is</span>
<a name="line-225"></a> <span class='hs-comment'>-- necessary to avoid blank lines from Hidden_commands, as groff</span>
<a name="line-226"></a> <span class='hs-comment'>-- translates them into annoying vertical padding (unlike TeX).</span>
<a name="line-227"></a> <span class='hs-varid'>synopsis</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-228"></a> <span class='hs-varid'>synopsis</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl</span> <span class='hs-varid'>iter</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>commandControlList</span>
<a name="line-229"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CommandControl</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-230"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>GroupName</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span>
<a name="line-231"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>HiddenCommand</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span>
<a name="line-232"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>CommandData</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>SuperCommand</span> <span class='hs-layout'>{</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-233"></a> <span class='hs-varid'>acc</span> <span class='hs-varop'>++</span> <span class='hs-varid'>concatMap</span>
<a name="line-234"></a> <span class='hs-layout'>(</span><span class='hs-varid'>render</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandName</span> <span class='hs-varid'>c</span> <span class='hs-varop'>++</span> <span class='hs-str'>" "</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-235"></a> <span class='hs-layout'>(</span><span class='hs-varid'>extractCommands</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandSubCommands</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-236"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>CommandData</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span> <span class='hs-varop'>++</span> <span class='hs-varid'>render</span> <span class='hs-str'>""</span> <span class='hs-varid'>c</span>
<a name="line-237"></a> <span class='hs-varid'>render</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-238"></a> <span class='hs-varid'>render</span> <span class='hs-varid'>prefix</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span>
<a name="line-239"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>".B darcs "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prefix</span> <span class='hs-varop'>++</span> <span class='hs-varid'>commandName</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span>
<a name="line-240"></a> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>mangle_args</span> <span class='hs-varop'>$</span> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span>
<a name="line-241"></a> <span class='hs-comment'>-- In the output, we want each command to be on its own</span>
<a name="line-242"></a> <span class='hs-comment'>-- line, but we don't want blank lines between them.</span>
<a name="line-243"></a> <span class='hs-comment'>-- AFAICT this can only be achieved with the .br</span>
<a name="line-244"></a> <span class='hs-comment'>-- directive, which is probably a GNUism.</span>
<a name="line-245"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>".br"</span><span class='hs-keyglyph'>]</span>
<a name="line-246"></a>
<a name="line-247"></a> <span class='hs-comment'>-- | As 'synopsis', but make each group a subsection (.SS), and</span>
<a name="line-248"></a> <span class='hs-comment'>-- include the help text for each command.</span>
<a name="line-249"></a> <span class='hs-varid'>commands</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-250"></a> <span class='hs-varid'>commands</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl</span> <span class='hs-varid'>iter</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>commandControlList</span>
<a name="line-251"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CommandControl</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-252"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>GroupName</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>".SS \""</span> <span class='hs-varop'>++</span> <span class='hs-varid'>x</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span><span class='hs-keyglyph'>]</span>
<a name="line-253"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>HiddenCommand</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span>
<a name="line-254"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>CommandData</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>SuperCommand</span> <span class='hs-layout'>{</span><span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-255"></a> <span class='hs-varid'>acc</span> <span class='hs-varop'>++</span> <span class='hs-varid'>concatMap</span>
<a name="line-256"></a> <span class='hs-layout'>(</span><span class='hs-varid'>render</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandName</span> <span class='hs-varid'>c</span> <span class='hs-varop'>++</span> <span class='hs-str'>" "</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-257"></a> <span class='hs-layout'>(</span><span class='hs-varid'>extractCommands</span> <span class='hs-layout'>(</span><span class='hs-varid'>commandSubCommands</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-258"></a> <span class='hs-varid'>iter</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>CommandData</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>acc</span> <span class='hs-varop'>++</span> <span class='hs-varid'>render</span> <span class='hs-str'>""</span> <span class='hs-varid'>c</span>
<a name="line-259"></a> <span class='hs-varid'>render</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>DarcsCommand</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-260"></a> <span class='hs-varid'>render</span> <span class='hs-varid'>prefix</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span>
<a name="line-261"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>".B darcs "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>prefix</span> <span class='hs-varop'>++</span> <span class='hs-varid'>commandName</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span>
<a name="line-262"></a> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>mangle_args</span> <span class='hs-varop'>$</span> <span class='hs-varid'>commandExtraArgHelp</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'>++</span>
<a name="line-263"></a> <span class='hs-keyglyph'>[</span><span class='hs-str'>".RS 4"</span><span class='hs-layout'>,</span> <span class='hs-varid'>escape</span> <span class='hs-varop'>$</span> <span class='hs-varid'>commandHelp</span> <span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-str'>".RE"</span><span class='hs-keyglyph'>]</span>
<a name="line-264"></a>
<a name="line-265"></a> <span class='hs-comment'>-- | Now I'm showing off: mangle the extra arguments of Darcs commands</span>
<a name="line-266"></a> <span class='hs-comment'>-- so as to use the ideal format for manpages, italic words and roman</span>
<a name="line-267"></a> <span class='hs-comment'>-- punctuation.</span>
<a name="line-268"></a> <span class='hs-varid'>mangle_args</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-269"></a> <span class='hs-varid'>mangle_args</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-270"></a> <span class='hs-str'>".RI "</span> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>unwords</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-varid'>groupBy</span> <span class='hs-varid'>cmp</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span> <span class='hs-varop'>$</span> <span class='hs-varid'>gank</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-271"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>cmp</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>xor</span> <span class='hs-layout'>(</span><span class='hs-varid'>isAlphaNum</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>isAlphaNum</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-272"></a> <span class='hs-varid'>xor</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>not</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-273"></a> <span class='hs-varid'>gank</span> <span class='hs-layout'>(</span><span class='hs-chr'>' '</span><span class='hs-conop'>:</span><span class='hs-chr'>'o'</span><span class='hs-conop'>:</span><span class='hs-chr'>'r'</span><span class='hs-conop'>:</span><span class='hs-chr'>' '</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-chr'>'|'</span> <span class='hs-conop'>:</span> <span class='hs-varid'>gank</span> <span class='hs-varid'>xs</span>
<a name="line-274"></a> <span class='hs-varid'>gank</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'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>gank</span> <span class='hs-varid'>xs</span>
<a name="line-275"></a> <span class='hs-varid'>gank</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-276"></a>
<a name="line-277"></a> <span class='hs-varid'>environment</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span>
<a name="line-278"></a> <span class='hs-varid'>environment</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>".SH ENVIRONMENT"</span> <span class='hs-conop'>:</span> <span class='hs-varid'>concat</span>
<a name="line-279"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-str'>".SS \""</span> <span class='hs-varop'>++</span> <span class='hs-varid'>andClauses</span> <span class='hs-varid'>ks</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\""</span><span class='hs-layout'>)</span> <span class='hs-conop'>:</span> <span class='hs-varid'>map</span> <span class='hs-varid'>escape</span> <span class='hs-varid'>ds</span>
<a name="line-280"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>ks</span><span class='hs-layout'>,</span> <span class='hs-varid'>ds</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>environmentHelp</span><span class='hs-keyglyph'>]</span>
<a name="line-281"></a>
<a name="line-282"></a> <span class='hs-comment'>-- | Copied from Preproc.escape_latex_specials.</span>
<a name="line-283"></a> <span class='hs-varid'>escape</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-284"></a> <span class='hs-varid'>escape</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>minus</span> <span class='hs-varop'>.</span> <span class='hs-varid'>bs</span> <span class='hs-comment'>-- Order is important</span>
<a name="line-285"></a> <span class='hs-keyword'>where</span>
<a name="line-286"></a> <span class='hs-varid'>minus</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replace</span> <span class='hs-str'>"-"</span> <span class='hs-str'>"\\-"</span>
<a name="line-287"></a> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>replace</span> <span class='hs-str'>"\\"</span> <span class='hs-str'>"\\\\"</span>
<a name="line-288"></a>
<a name="line-289"></a> <span class='hs-varid'>replace</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-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-290"></a> <span class='hs-varid'>replace</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-291"></a> <span class='hs-varid'>replace</span> <span class='hs-varid'>find</span> <span class='hs-varid'>repl</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-292"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>find</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>s</span>
<a name="line-293"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>repl</span> <span class='hs-varop'>++</span> <span class='hs-layout'>(</span><span class='hs-varid'>replace</span> <span class='hs-varid'>find</span> <span class='hs-varid'>repl</span> <span class='hs-layout'>(</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>find</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-294"></a> <span class='hs-keyword'>else</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>head</span> <span class='hs-varid'>s</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>replace</span> <span class='hs-varid'>find</span> <span class='hs-varid'>repl</span> <span class='hs-layout'>(</span><span class='hs-varid'>tail</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-295"></a>
</pre></body>
</html>
