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<title>src/Darcs/Patch/TouchesFiles.hs</title>
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<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-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'>TouchesFiles</span> <span class='hs-layout'>(</span> <span class='hs-varid'>lookTouch</span><span class='hs-layout'>,</span> <span class='hs-varid'>chooseTouching</span><span class='hs-layout'>,</span> <span class='hs-varid'>choosePreTouching</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>selectTouching</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>deselectNotTouching</span><span class='hs-layout'>,</span> <span class='hs-varid'>selectNotTouching</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</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-27"></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'>isSuffixOf</span><span class='hs-layout'>,</span> <span class='hs-varid'>nub</span> <span class='hs-layout'>)</span>
<a name="line-28"></a>
<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'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Choices</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchChoices</span><span class='hs-layout'>,</span> <span class='hs-conid'>Tag</span><span class='hs-layout'>,</span> <span class='hs-conid'>TaggedPatch</span><span class='hs-layout'>,</span>
<a name="line-30"></a> <span class='hs-varid'>patchChoices</span><span class='hs-layout'>,</span> <span class='hs-varid'>tag</span><span class='hs-layout'>,</span> <span class='hs-varid'>getChoices</span><span class='hs-layout'>,</span>
<a name="line-31"></a> <span class='hs-varid'>forceFirsts</span><span class='hs-layout'>,</span> <span class='hs-varid'>forceLasts</span><span class='hs-layout'>,</span> <span class='hs-varid'>tpPatch</span><span class='hs-layout'>,</span>
<a name="line-32"></a> <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-layout'>(</span> <span class='hs-conid'>Patchy</span><span class='hs-layout'>,</span> <span class='hs-varid'>invert</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'>Apply</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ApplyState</span><span class='hs-layout'>,</span> <span class='hs-varid'>applyToFilePaths</span><span class='hs-layout'>,</span> <span class='hs-varid'>effectOnFilePaths</span> <span class='hs-layout'>)</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'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</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> <span class='hs-varid'>mapFL_FL</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-36"></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-varid'>seal</span> <span class='hs-layout'>)</span>
<a name="line-37"></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-38"></a>
<a name="line-39"></a><a name="selectTouching"></a><span class='hs-definition'>selectTouching</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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>
<a name="line-40"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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-41"></a><span class='hs-definition'>selectTouching</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pc</span>
<a name="line-42"></a><span class='hs-definition'>selectTouching</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>forceFirsts</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>pc</span>
<a name="line-43"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ct</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</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'>TaggedPatch</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-keyglyph'>[</span><span class='hs-conid'>Tag</span><span class='hs-keyglyph'>]</span>
<a name="line-44"></a> <span class='hs-varid'>ct</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-45"></a> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tp</span><span class='hs-conop'>:>:</span><span class='hs-varid'>tps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookTouchOnlyEffect</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tpPatch</span> <span class='hs-varid'>tp</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-46"></a> <span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>tag</span> <span class='hs-varid'>tp</span><span class='hs-conop'>:</span><span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-47"></a> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-48"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>getChoices</span> <span class='hs-varid'>pc</span> <span class='hs-keyword'>of</span>
<a name="line-49"></a> <span class='hs-keyword'>_</span> <span class='hs-conop'>:></span> <span class='hs-varid'>mc</span> <span class='hs-conop'>:></span> <span class='hs-varid'>lc</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fix</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>mc</span> <span class='hs-varop'>+>+</span> <span class='hs-varid'>lc</span><span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a><a name="deselectNotTouching"></a><span class='hs-definition'>deselectNotTouching</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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>
<a name="line-52"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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-53"></a><span class='hs-definition'>deselectNotTouching</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pc</span>
<a name="line-54"></a><span class='hs-definition'>deselectNotTouching</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>forceLasts</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>pc</span>
<a name="line-55"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ct</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</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'>TaggedPatch</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-keyglyph'>[</span><span class='hs-conid'>Tag</span><span class='hs-keyglyph'>]</span>
<a name="line-56"></a> <span class='hs-varid'>ct</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-57"></a> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tp</span><span class='hs-conop'>:>:</span><span class='hs-varid'>tps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookTouchOnlyEffect</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tpPatch</span> <span class='hs-varid'>tp</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-58"></a> <span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-59"></a> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>tag</span> <span class='hs-varid'>tp</span><span class='hs-conop'>:</span><span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-60"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>getChoices</span> <span class='hs-varid'>pc</span> <span class='hs-keyword'>of</span>
<a name="line-61"></a> <span class='hs-varid'>fc</span> <span class='hs-conop'>:></span> <span class='hs-varid'>mc</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fix</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fc</span> <span class='hs-varop'>+>+</span> <span class='hs-varid'>mc</span><span class='hs-layout'>)</span>
<a name="line-62"></a>
<a name="line-63"></a><a name="selectNotTouching"></a><span class='hs-definition'>selectNotTouching</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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>
<a name="line-64"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchChoices</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-65"></a><span class='hs-definition'>selectNotTouching</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pc</span>
<a name="line-66"></a><span class='hs-definition'>selectNotTouching</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-varid'>pc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>forceFirsts</span> <span class='hs-varid'>xs</span> <span class='hs-varid'>pc</span>
<a name="line-67"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>ct</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</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'>TaggedPatch</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-keyglyph'>[</span><span class='hs-conid'>Tag</span><span class='hs-keyglyph'>]</span>
<a name="line-68"></a> <span class='hs-varid'>ct</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>NilFL</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-69"></a> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tp</span><span class='hs-conop'>:>:</span><span class='hs-varid'>tps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>lookTouchOnlyEffect</span> <span class='hs-varid'>fs</span> <span class='hs-layout'>(</span><span class='hs-varid'>tpPatch</span> <span class='hs-varid'>tp</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-70"></a> <span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-71"></a> <span class='hs-layout'>(</span><span class='hs-conid'>False</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>tag</span> <span class='hs-varid'>tp</span><span class='hs-conop'>:</span><span class='hs-varid'>ct</span> <span class='hs-varid'>fs'</span> <span class='hs-varid'>tps</span>
<a name="line-72"></a> <span class='hs-varid'>xs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>getChoices</span> <span class='hs-varid'>pc</span> <span class='hs-keyword'>of</span>
<a name="line-73"></a> <span class='hs-varid'>fc</span> <span class='hs-conop'>:></span> <span class='hs-varid'>mc</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ct</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varid'>fix</span> <span class='hs-varid'>files</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fc</span> <span class='hs-varop'>+>+</span> <span class='hs-varid'>mc</span><span class='hs-layout'>)</span>
<a name="line-74"></a>
<a name="line-75"></a><a name="fix"></a><span class='hs-definition'>fix</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-76"></a><span class='hs-definition'>fix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>|</span> <span class='hs-str'>"/"</span> <span class='hs-varop'>`isSuffixOf`</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fix</span> <span class='hs-varop'>$</span> <span class='hs-varid'>init</span> <span class='hs-varid'>f</span>
<a name="line-77"></a><span class='hs-definition'>fix</span> <span class='hs-str'>""</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"."</span>
<a name="line-78"></a><span class='hs-definition'>fix</span> <span class='hs-str'>"."</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"."</span>
<a name="line-79"></a><span class='hs-definition'>fix</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"./"</span> <span class='hs-varop'>++</span> <span class='hs-varid'>f</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="chooseTouching"></a><span class='hs-definition'>chooseTouching</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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>
<a name="line-82"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</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-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-83"></a><span class='hs-definition'>chooseTouching</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varid'>p</span>
<a name="line-84"></a><span class='hs-definition'>chooseTouching</span> <span class='hs-varid'>files</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>getChoices</span> <span class='hs-varop'>$</span> <span class='hs-varid'>selectTouching</span> <span class='hs-varid'>files</span> <span class='hs-varop'>$</span> <span class='hs-varid'>patchChoices</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>of</span>
<a name="line-85"></a> <span class='hs-varid'>fc</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-conop'>:></span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mapFL_FL</span> <span class='hs-varid'>tpPatch</span> <span class='hs-varid'>fc</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="choosePreTouching"></a><span class='hs-definition'>choosePreTouching</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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>
<a name="line-88"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FL</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> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</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-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-89"></a><span class='hs-definition'>choosePreTouching</span> <span class='hs-varid'>files</span> <span class='hs-varid'>patch</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>chooseTouching</span> <span class='hs-varid'>filesBeforePatch</span> <span class='hs-varid'>patch</span> <span class='hs-keyword'>where</span>
<a name="line-90"></a> <span class='hs-varid'>filesBeforePatch</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>effectOnFilePaths</span> <span class='hs-layout'>(</span><span class='hs-varid'>invert</span> <span class='hs-varid'>patch</span><span class='hs-layout'>)</span> <span class='hs-varop'><$></span> <span class='hs-varid'>files</span>
<a name="line-91"></a>
<a name="line-92"></a><a name="lookTouchOnlyEffect"></a><span class='hs-definition'>lookTouchOnlyEffect</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></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-93"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-94"></a><span class='hs-definition'>lookTouchOnlyEffect</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>wasTouched</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-95"></a> <span class='hs-layout'>(</span><span class='hs-varid'>wasTouched</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</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'>lookTouch</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>p</span>
<a name="line-96"></a>
<a name="line-97"></a>
<a name="line-98"></a><a name="lookTouch"></a><span class='hs-definition'>lookTouch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-keyglyph'>=></span> <span class='hs-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>FilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>FilePath</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-99"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></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-100"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FilePath</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>FilePath</span><span class='hs-layout'>,</span> <span class='hs-conid'>FilePath</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-101"></a><span class='hs-definition'>lookTouch</span> <span class='hs-varid'>renames</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>anyTouched</span><span class='hs-layout'>,</span> <span class='hs-varid'>touchedFs</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>renames'</span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-keyword'>where</span>
<a name="line-103"></a> <span class='hs-varid'>touchedFs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nub</span> <span class='hs-varop'>.</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>fsAffectedBy</span> <span class='hs-varop'>$</span> <span class='hs-varid'>affected</span>
<a name="line-104"></a> <span class='hs-varid'>fsAffectedBy</span> <span class='hs-varid'>af</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>affectedBy</span> <span class='hs-varid'>af</span><span class='hs-layout'>)</span> <span class='hs-varid'>fs</span>
<a name="line-105"></a> <span class='hs-varid'>anyTouched</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>touchedFs</span> <span class='hs-varop'>></span> <span class='hs-num'>0</span>
<a name="line-106"></a> <span class='hs-varid'>affectedBy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-107"></a> <span class='hs-varid'>touched</span> <span class='hs-varop'>`affectedBy`</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>touched</span> <span class='hs-varop'>==</span> <span class='hs-varid'>f</span>
<a name="line-108"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>touched</span> <span class='hs-varop'>`isSubPathOf`</span> <span class='hs-varid'>f</span>
<a name="line-109"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>f</span> <span class='hs-varop'>`isSubPathOf`</span> <span class='hs-varid'>touched</span>
<a name="line-110"></a> <span class='hs-varid'>isSubPathOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-111"></a> <span class='hs-varid'>path</span> <span class='hs-varop'>`isSubPathOf`</span> <span class='hs-varid'>parent</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>splitAt</span> <span class='hs-layout'>(</span><span class='hs-varid'>length</span> <span class='hs-varid'>parent</span><span class='hs-layout'>)</span> <span class='hs-varid'>path</span> <span class='hs-keyword'>of</span>
<a name="line-112"></a> <span class='hs-layout'>(</span><span class='hs-varid'>path'</span><span class='hs-layout'>,</span> <span class='hs-chr'>'/'</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>path'</span> <span class='hs-varop'>==</span> <span class='hs-varid'>parent</span>
<a name="line-113"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>False</span>
<a name="line-114"></a> <span class='hs-layout'>(</span><span class='hs-varid'>affected</span><span class='hs-layout'>,</span> <span class='hs-varid'>fs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>renames'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyToFilePaths</span> <span class='hs-varid'>p</span> <span class='hs-varid'>renames</span> <span class='hs-varid'>fs</span>
</pre></body>
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