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<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2004-2005 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, ScopedTypeVariables, MultiParamTypeClasses, FlexibleInstances, Rank2Types #-}</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-comment'>-- | /First matcher, Second matcher and Nonrange matcher/</span>
<a name="line-23"></a><span class='hs-comment'>--</span>
<a name="line-24"></a><span class='hs-comment'>-- When we match for patches, we have a PatchSet, of which we want a</span>
<a name="line-25"></a><span class='hs-comment'>-- subset. This subset is formed by the patches in a given interval</span>
<a name="line-26"></a><span class='hs-comment'>-- which match a given criterion. If we represent time going left to</span>
<a name="line-27"></a><span class='hs-comment'>-- right, then we have (up to) three 'Matcher's:</span>
<a name="line-28"></a><span class='hs-comment'>--</span>
<a name="line-29"></a><span class='hs-comment'>-- * the 'firstMatcher' is the left bound of the interval,</span>
<a name="line-30"></a><span class='hs-comment'>--</span>
<a name="line-31"></a><span class='hs-comment'>-- * the 'secondMatcher' is the right bound, and</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></a><span class='hs-comment'>-- * the 'nonrangeMatcher' is the criterion we use to select among</span>
<a name="line-34"></a><span class='hs-comment'>-- patches in the interval.</span>
<a name="line-35"></a><span class='hs-comment'>---</span>
<a name="line-36"></a><span class='hs-comment'>-- Each of these matchers can be present or not according to the</span>
<a name="line-37"></a><span class='hs-comment'>-- options. The patches we want would then be the ones that all</span>
<a name="line-38"></a><span class='hs-comment'>-- present matchers have in common.</span>
<a name="line-39"></a><span class='hs-comment'>--</span>
<a name="line-40"></a><span class='hs-comment'>-- (Implementation note: keep in mind that the PatchSet is written</span>
<a name="line-41"></a><span class='hs-comment'>-- backwards with respect to the timeline, ie., from right to left)</span>
<a name="line-42"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Match</span> <span class='hs-layout'>(</span> <span class='hs-varid'>matchFirstPatchset</span><span class='hs-layout'>,</span> <span class='hs-varid'>matchSecondPatchset</span><span class='hs-layout'>,</span>
<a name="line-43"></a> <span class='hs-varid'>matchPatch</span><span class='hs-layout'>,</span>
<a name="line-44"></a> <span class='hs-varid'>matchAPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>matchAPatchread</span><span class='hs-layout'>,</span>
<a name="line-45"></a> <span class='hs-varid'>getFirstMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>getNonrangeMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>getNonrangeMatchS</span><span class='hs-layout'>,</span>
<a name="line-46"></a> <span class='hs-varid'>getPartialFirstMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>getPartialSecondMatch</span><span class='hs-layout'>,</span>
<a name="line-47"></a> <span class='hs-varid'>getPartialNonrangeMatch</span><span class='hs-layout'>,</span>
<a name="line-48"></a> <span class='hs-varid'>firstMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>secondMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>haveNonrangeMatch</span><span class='hs-layout'>,</span>
<a name="line-49"></a> <span class='hs-varid'>havePatchsetMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>getOnePatchset</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-varid'>checkMatchSyntax</span><span class='hs-layout'>,</span> <span class='hs-varid'>applyInvToMatcher</span><span class='hs-layout'>,</span> <span class='hs-varid'>nonrangeMatcher</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-conid'>InclusiveOrExclusive</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'>matchExists</span><span class='hs-layout'>,</span> <span class='hs-varid'>applyNInv</span><span class='hs-layout'>,</span> <span class='hs-varid'>hasIndexRange</span>
<a name="line-52"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-53"></a>
<a name="line-54"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Regex</span> <span class='hs-layout'>(</span> <span class='hs-varid'>mkRegex</span><span class='hs-layout'>,</span> <span class='hs-varid'>matchRegex</span> <span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>when</span> <span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>)</span>
<a name="line-57"></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'>isPrefixOf</span> <span class='hs-layout'>)</span>
<a name="line-58"></a>
<a name="line-59"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>MonadProgress</span> <span class='hs-layout'>(</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-layout'>)</span>
<a name="line-60"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchInfoAnd</span><span class='hs-layout'>,</span> <span class='hs-varid'>info</span><span class='hs-layout'>,</span> <span class='hs-varid'>piap</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>conscientiously</span><span class='hs-layout'>,</span> <span class='hs-varid'>hopefully</span> <span class='hs-layout'>)</span>
<a name="line-62"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Info</span> <span class='hs-layout'>(</span> <span class='hs-varid'>justName</span> <span class='hs-layout'>)</span>
<a name="line-63"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RepoPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>Patchy</span><span class='hs-layout'>,</span> <span class='hs-conid'>Named</span><span class='hs-layout'>,</span> <span class='hs-varid'>invert</span><span class='hs-layout'>,</span> <span class='hs-varid'>invertRL</span><span class='hs-layout'>,</span> <span class='hs-varid'>patch2patchinfo</span><span class='hs-layout'>,</span> <span class='hs-varid'>apply</span> <span class='hs-layout'>)</span>
<a name="line-64"></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'>Dummy</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DummyPatch</span> <span class='hs-layout'>)</span>
<a name="line-65"></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-layout'>(</span> <span class='hs-conid'>Repository</span><span class='hs-layout'>,</span> <span class='hs-varid'>readRepo</span><span class='hs-layout'>,</span> <span class='hs-varid'>createPristineDirectoryTree</span> <span class='hs-layout'>)</span>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchSet</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Tagged</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>SealedPatchSet</span><span class='hs-layout'>,</span> <span class='hs-varid'>newset2RL</span> <span class='hs-layout'>)</span>
<a name="line-67"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Apply</span><span class='hs-layout'>(</span> <span class='hs-conid'>ApplyState</span> <span class='hs-layout'>)</span>
<a name="line-68"></a><span class='hs-cpp'>#ifdef GADT_WITNESSES</span>
<a name="line-69"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Set</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Origin</span> <span class='hs-layout'>)</span>
<a name="line-70"></a><span class='hs-cpp'>#endif</span>
<a name="line-71"></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'>ApplyPatches</span> <span class='hs-layout'>(</span> <span class='hs-varid'>applyPatches</span> <span class='hs-layout'>)</span>
<a name="line-72"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Depends</span> <span class='hs-layout'>(</span> <span class='hs-varid'>getPatchesBeyondTag</span> <span class='hs-layout'>)</span>
<a name="line-73"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>RL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>consRLSealed</span> <span class='hs-layout'>)</span>
<a name="line-74"></a>
<a name="line-75"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ByteStringUtils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>mmapFilePS</span> <span class='hs-layout'>)</span>
<a name="line-76"></a>
<a name="line-77"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Flags</span> <span class='hs-layout'>(</span> <span class='hs-conid'>DarcsFlag</span><span class='hs-layout'>(</span> <span class='hs-conid'>OnePatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>SeveralPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>Context</span><span class='hs-layout'>,</span>
<a name="line-78"></a> <span class='hs-conid'>AfterPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>UpToPatch</span><span class='hs-layout'>,</span> <span class='hs-conid'>LastN</span><span class='hs-layout'>,</span> <span class='hs-conid'>PatchIndexRange</span><span class='hs-layout'>,</span>
<a name="line-79"></a> <span class='hs-conid'>OneTag</span><span class='hs-layout'>,</span> <span class='hs-conid'>AfterTag</span><span class='hs-layout'>,</span> <span class='hs-conid'>UpToTag</span><span class='hs-layout'>,</span>
<a name="line-80"></a> <span class='hs-conid'>OnePattern</span><span class='hs-layout'>,</span> <span class='hs-conid'>SeveralPattern</span><span class='hs-layout'>,</span>
<a name="line-81"></a> <span class='hs-conid'>AfterPattern</span><span class='hs-layout'>,</span> <span class='hs-conid'>UpToPattern</span> <span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-82"></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'>Bundle</span> <span class='hs-layout'>(</span> <span class='hs-varid'>scanContext</span> <span class='hs-layout'>)</span>
<a name="line-83"></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-conid'>Matcher</span><span class='hs-layout'>,</span> <span class='hs-conid'>MatchFun</span><span class='hs-layout'>,</span> <span class='hs-varid'>matchPattern</span><span class='hs-layout'>,</span> <span class='hs-varid'>applyMatcher</span><span class='hs-layout'>,</span> <span class='hs-varid'>makeMatcher</span><span class='hs-layout'>,</span> <span class='hs-varid'>parseMatch</span> <span class='hs-layout'>)</span>
<a name="line-84"></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'>MatchData</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchMatch</span> <span class='hs-layout'>)</span>
<a name="line-85"></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-layout'>(</span><span class='hs-varop'>$$</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-86"></a>
<a name="line-87"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>RepoPath</span> <span class='hs-layout'>(</span> <span class='hs-varid'>toFilePath</span> <span class='hs-layout'>)</span>
<a name="line-88"></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'>ApplyMonad</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ApplyMonad</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-89"></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'>FileName</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FileName</span> <span class='hs-layout'>)</span>
<a name="line-90"></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'>FlippedSeal</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'>Sealed2</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-91"></a> <span class='hs-varid'>seal</span><span class='hs-layout'>,</span> <span class='hs-varid'>flipSeal</span><span class='hs-layout'>,</span> <span class='hs-varid'>seal2</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsealFlipped</span><span class='hs-layout'>,</span> <span class='hs-varid'>unseal2</span><span class='hs-layout'>,</span> <span class='hs-varid'>unseal</span> <span class='hs-layout'>)</span>
<a name="line-92"></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-93"></a><span class='hs-cpp'>#include "impossible.h"</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="InclusiveOrExclusive"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>InclusiveOrExclusive</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Inclusive</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Exclusive</span> <span class='hs-keyword'>deriving</span> <span class='hs-conid'>Eq</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="haveNonrangeMatch"></a><span class='hs-comment'>-- | @haveNonrangeMatch flags@ tells whether there is a flag in</span>
<a name="line-98"></a><span class='hs-comment'>-- @flags@ which corresponds to a match that is "non-range". Thus,</span>
<a name="line-99"></a><span class='hs-comment'>-- @--match@, @--patch@ and @--index@ make @haveNonrangeMatch@</span>
<a name="line-100"></a><span class='hs-comment'>-- true, but not @--from-patch@ or @--to-patch@.</span>
<a name="line-101"></a><span class='hs-definition'>haveNonrangeMatch</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-conid'>Bool</span>
<a name="line-102"></a><span class='hs-definition'>haveNonrangeMatch</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-conid'>DummyPatch</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a><a name="havePatchsetMatch"></a><span class='hs-comment'>-- | @havePatchsetMatch flags@ tells whether there is a "patchset</span>
<a name="line-105"></a><span class='hs-comment'>-- match" in the flag list. A patchset match is @--match@ or</span>
<a name="line-106"></a><span class='hs-comment'>-- @--patch@, or @--context@, but not @--from-patch@ nor (!)</span>
<a name="line-107"></a><span class='hs-comment'>-- @--index@.</span>
<a name="line-108"></a><span class='hs-comment'>-- Question: Is it supposed not to be a subset of @haveNonrangeMatch@?</span>
<a name="line-109"></a><span class='hs-definition'>havePatchsetMatch</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-conid'>Bool</span>
<a name="line-110"></a><span class='hs-definition'>havePatchsetMatch</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-conid'>DummyPatch</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-varid'>hasC</span> <span class='hs-varid'>fs</span>
<a name="line-111"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>hasC</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-112"></a> <span class='hs-varid'>hasC</span> <span class='hs-layout'>(</span><span class='hs-conid'>Context</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</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'>hasC</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</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'>hasC</span> <span class='hs-varid'>xs</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="getNonrangeMatch"></a><span class='hs-definition'>getNonrangeMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-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-116"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</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-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-117"></a><span class='hs-definition'>getNonrangeMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-varid'>getNonrangeMatchS</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="getPartialNonrangeMatch"></a><span class='hs-definition'>getPartialNonrangeMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</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-120"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-121"></a> <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'>FileName</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-122"></a><span class='hs-definition'>getPartialNonrangeMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span>
<a name="line-123"></a> <span class='hs-varid'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-varid'>getNonrangeMatchS</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="getNonrangeMatchS"></a><span class='hs-definition'>getNonrangeMatchS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-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>
<a name="line-126"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-127"></a><span class='hs-definition'>getNonrangeMatchS</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>repo</span> <span class='hs-keyglyph'>=</span>
<a name="line-128"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-129"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>nonrangeMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-130"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>getTagS</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-131"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>getMatcherS</span> <span class='hs-conid'>Exclusive</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-132"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Pattern not specified in getNonrangeMatch."</span>
<a name="line-133"></a>
<a name="line-134"></a><a name="firstMatch"></a><span class='hs-comment'>-- | @firstMatch fs@ tells whether @fs@ implies a "first match", that</span>
<a name="line-135"></a><span class='hs-comment'>-- is if we match against patches from a point in the past on, rather</span>
<a name="line-136"></a><span class='hs-comment'>-- than against all patches since the creation of the repository.</span>
<a name="line-137"></a><span class='hs-definition'>firstMatch</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-conid'>Bool</span>
<a name="line-138"></a><span class='hs-definition'>firstMatch</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasLastn</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-139"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>firstMatcher</span> <span class='hs-varid'>fs</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-conid'>DummyPatch</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-140"></a> <span class='hs-varop'>||</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-141"></a>
<a name="line-142"></a><a name="getFirstMatch"></a><span class='hs-definition'>getFirstMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-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-143"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</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-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-144"></a><span class='hs-definition'>getFirstMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-varid'>getFirstMatchS</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="getPartialFirstMatch"></a><span class='hs-definition'>getPartialFirstMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</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-147"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-148"></a> <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-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FileName</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-149"></a><span class='hs-definition'>getPartialFirstMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span>
<a name="line-150"></a> <span class='hs-varid'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-layout'>(</span><span class='hs-varid'>getFirstMatchS</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="getFirstMatchS"></a><span class='hs-definition'>getFirstMatchS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span>
<a name="line-153"></a> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-154"></a><span class='hs-definition'>getFirstMatchS</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>repo</span> <span class='hs-keyglyph'>=</span>
<a name="line-155"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasLastn</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-156"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unpullLastN</span> <span class='hs-varid'>repo</span> <span class='hs-varid'>n</span>
<a name="line-157"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span>
<a name="line-158"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-159"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unpullLastN</span> <span class='hs-varid'>repo</span> <span class='hs-varid'>b</span> <span class='hs-comment'>-- b is chronologically earlier than a</span>
<a name="line-160"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span>
<a name="line-161"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>firstMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-162"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Pattern not specified in getFirstMatch."</span>
<a name="line-163"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>firstMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-164"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>getTagS</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-165"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>getMatcherS</span> <span class='hs-conid'>Inclusive</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="secondMatch"></a><span class='hs-comment'>-- | @secondMatch fs@ tells whether @fs@ implies a "second match", that</span>
<a name="line-168"></a><span class='hs-comment'>-- is if we match against patches up to a point in the past on, rather</span>
<a name="line-169"></a><span class='hs-comment'>-- than against all patches until now.</span>
<a name="line-170"></a><span class='hs-definition'>secondMatch</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-conid'>Bool</span>
<a name="line-171"></a><span class='hs-definition'>secondMatch</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>secondMatcher</span> <span class='hs-varid'>fs</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-conid'>DummyPatch</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="getPartialSecondMatch"></a><span class='hs-definition'>getPartialSecondMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</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-174"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-175"></a> <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-conid'>Maybe</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>FileName</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-176"></a><span class='hs-definition'>getPartialSecondMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span>
<a name="line-177"></a> <span class='hs-varid'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>repo</span> <span class='hs-keyglyph'>-></span>
<a name="line-178"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>secondMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-179"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-180"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unpullLastN</span> <span class='hs-varid'>repo</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-181"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>fail</span> <span class='hs-str'>"Two patterns not specified in get_second_match."</span>
<a name="line-182"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>secondMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-183"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>getTagS</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-184"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>getMatcherS</span> <span class='hs-conid'>Exclusive</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-185"></a>
<a name="line-186"></a><a name="unpullLastN"></a><span class='hs-definition'>unpullLastN</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-varid'>m</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-keyglyph'>=></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-187"></a><span class='hs-definition'>unpullLastN</span> <span class='hs-varid'>repo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyInvRL</span> <span class='hs-varop'>`unsealFlipped`</span> <span class='hs-layout'>(</span><span class='hs-varid'>safetake</span> <span class='hs-varid'>n</span> <span class='hs-varop'>$</span> <span class='hs-varid'>newset2RL</span> <span class='hs-varid'>repo</span><span class='hs-layout'>)</span>
<a name="line-188"></a>
<a name="line-189"></a><a name="checkMatchSyntax"></a><span class='hs-definition'>checkMatchSyntax</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-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-190"></a><span class='hs-definition'>checkMatchSyntax</span> <span class='hs-varid'>opts</span> <span class='hs-keyglyph'>=</span>
<a name="line-191"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getMatchPattern</span> <span class='hs-varid'>opts</span> <span class='hs-keyword'>of</span>
<a name="line-192"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-193"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>either</span> <span class='hs-varid'>fail</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>parseMatch</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>Either</span> <span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-conid'>MatchFun</span> <span class='hs-conid'>DummyPatch</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-194"></a>
<a name="line-195"></a><a name="getMatchPattern"></a><span class='hs-definition'>getMatchPattern</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-conid'>Maybe</span> <span class='hs-conid'>PatchMatch</span>
<a name="line-196"></a><span class='hs-definition'>getMatchPattern</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-197"></a><span class='hs-definition'>getMatchPattern</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePattern</span> <span class='hs-varid'>m</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span>
<a name="line-198"></a><span class='hs-definition'>getMatchPattern</span> <span class='hs-layout'>(</span><span class='hs-conid'>SeveralPattern</span> <span class='hs-varid'>m</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span>
<a name="line-199"></a><span class='hs-definition'>getMatchPattern</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getMatchPattern</span> <span class='hs-varid'>fs</span>
<a name="line-200"></a>
<a name="line-201"></a><a name="tagmatch"></a><span class='hs-definition'>tagmatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span>
<a name="line-202"></a><span class='hs-definition'>tagmatch</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeMatcher</span> <span class='hs-layout'>(</span><span class='hs-str'>"tag-name "</span><span class='hs-varop'>++</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varid'>tm</span>
<a name="line-203"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>tm</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed2</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-204"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>justName</span> <span class='hs-layout'>(</span><span class='hs-varid'>info</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>in</span>
<a name="line-205"></a> <span class='hs-str'>"TAG "</span> <span class='hs-varop'>`isPrefixOf`</span> <span class='hs-varid'>n</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>isJust</span> <span class='hs-layout'>(</span><span class='hs-varid'>matchRegex</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkRegex</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>drop</span> <span class='hs-num'>4</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="mymatch"></a><span class='hs-definition'>mymatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span>
<a name="line-208"></a><span class='hs-definition'>mymatch</span> <span class='hs-varid'>r</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>makeMatcher</span> <span class='hs-layout'>(</span><span class='hs-str'>"patch-name "</span><span class='hs-varop'>++</span><span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varid'>mm</span>
<a name="line-209"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mm</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed2</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isJust</span> <span class='hs-varop'>.</span> <span class='hs-varid'>matchRegex</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkRegex</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>justName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>info</span> <span class='hs-varop'>$</span> <span class='hs-varid'>p</span>
<a name="line-210"></a>
<a name="line-211"></a>
<a name="line-212"></a><a name="strictJust"></a><span class='hs-comment'>-- | strictJust is a strict version of the Just constructor, used to ensure</span>
<a name="line-213"></a><span class='hs-comment'>-- that if we claim we've got a pattern match, that the pattern will</span>
<a name="line-214"></a><span class='hs-comment'>-- actually match (rathern than fail to compile properly).</span>
<a name="line-215"></a><span class='hs-definition'>strictJust</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>a</span>
<a name="line-216"></a><span class='hs-definition'>strictJust</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>x</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="nonrangeMatcher"></a><span class='hs-comment'>-- | @nonrangeMatcher@ is the criterion that is used to match against</span>
<a name="line-219"></a><span class='hs-comment'>-- patches in the interval. It is 'Just m' when the @--patch@, @--match@,</span>
<a name="line-220"></a><span class='hs-comment'>-- @--tag@ options are passed (or their plural variants).</span>
<a name="line-221"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-222"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-223"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-224"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OneTag</span> <span class='hs-varid'>t</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tagmatch</span> <span class='hs-varid'>t</span>
<a name="line-225"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-226"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>SeveralPattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-227"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>SeveralPatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-228"></a><span class='hs-definition'>nonrangeMatcher</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span>
<a name="line-229"></a>
<a name="line-230"></a><a name="nonrangeMatcherIsTag"></a><span class='hs-comment'>-- | @nonrangeMatcherIsTag@ returns true if the matching option was</span>
<a name="line-231"></a><span class='hs-comment'>-- '--tag'</span>
<a name="line-232"></a><span class='hs-definition'>nonrangeMatcherIsTag</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-conid'>Bool</span>
<a name="line-233"></a><span class='hs-definition'>nonrangeMatcherIsTag</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-234"></a><span class='hs-definition'>nonrangeMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-conid'>OneTag</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</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-235"></a><span class='hs-definition'>nonrangeMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>nonrangeMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-236"></a>
<a name="line-237"></a><a name="firstMatcher"></a><span class='hs-comment'>-- | @firstMatcher@ returns the left bound of the matched interval.</span>
<a name="line-238"></a><span class='hs-comment'>-- This left bound is also specified when we use the singular versions</span>
<a name="line-239"></a><span class='hs-comment'>-- of @--patch@, @--match@ and @--tag@. Otherwise, @firstMatcher@</span>
<a name="line-240"></a><span class='hs-comment'>-- returns @Nothing@.</span>
<a name="line-241"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-242"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-243"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-244"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>AfterPattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-245"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>AfterTag</span> <span class='hs-varid'>t</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tagmatch</span> <span class='hs-varid'>t</span>
<a name="line-246"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-247"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>AfterPatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-248"></a><span class='hs-definition'>firstMatcher</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>firstMatcher</span> <span class='hs-varid'>fs</span>
<a name="line-249"></a>
<a name="line-250"></a><a name="firstMatcherIsTag"></a><span class='hs-definition'>firstMatcherIsTag</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-conid'>Bool</span>
<a name="line-251"></a><span class='hs-definition'>firstMatcherIsTag</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-252"></a><span class='hs-definition'>firstMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-conid'>AfterTag</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</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-253"></a><span class='hs-definition'>firstMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>firstMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-254"></a>
<a name="line-255"></a><a name="secondMatcher"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-256"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-257"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-258"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>UpToPattern</span> <span class='hs-varid'>m</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchPattern</span> <span class='hs-varid'>m</span>
<a name="line-259"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>OnePatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-260"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>UpToPatch</span> <span class='hs-varid'>p</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mymatch</span> <span class='hs-varid'>p</span>
<a name="line-261"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-conid'>UpToTag</span> <span class='hs-varid'>t</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'>strictJust</span> <span class='hs-varop'>$</span> <span class='hs-varid'>tagmatch</span> <span class='hs-varid'>t</span>
<a name="line-262"></a><span class='hs-definition'>secondMatcher</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>secondMatcher</span> <span class='hs-varid'>fs</span>
<a name="line-263"></a>
<a name="line-264"></a><a name="secondMatcherIsTag"></a><span class='hs-definition'>secondMatcherIsTag</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-conid'>Bool</span>
<a name="line-265"></a><span class='hs-definition'>secondMatcherIsTag</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-266"></a><span class='hs-definition'>secondMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-conid'>UpToTag</span> <span class='hs-keyword'>_</span><span class='hs-conop'>:</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-267"></a><span class='hs-definition'>secondMatcherIsTag</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>secondMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-268"></a>
<a name="line-269"></a><a name="matchAPatchread"></a><span class='hs-comment'>-- | @matchAPatchread fs p@ tells whether @p@ matches the matchers in</span>
<a name="line-270"></a><span class='hs-comment'>-- the flags listed in @fs@.</span>
<a name="line-271"></a><span class='hs-definition'>matchAPatchread</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-272"></a><span class='hs-definition'>matchAPatchread</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-273"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>const</span> <span class='hs-conid'>True</span>
<a name="line-274"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span>
<a name="line-275"></a>
<a name="line-276"></a><a name="matchAPatch"></a><span class='hs-comment'>-- | @matchAPatch fs p@ tells whether @p@ matches the matchers in</span>
<a name="line-277"></a><span class='hs-comment'>-- the flags @fs@</span>
<a name="line-278"></a><span class='hs-definition'>matchAPatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patchy</span> <span class='hs-varid'>p</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-conid'>Named</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'>Bool</span>
<a name="line-279"></a><span class='hs-definition'>matchAPatch</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span>
<a name="line-280"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-281"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>True</span>
<a name="line-282"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>patch2patchinfo</span> <span class='hs-varid'>p</span> <span class='hs-varop'>`piap`</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-283"></a>
<a name="line-284"></a><a name="matchPatch"></a><span class='hs-definition'>matchPatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed2</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-285"></a><span class='hs-definition'>matchPatch</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span>
<a name="line-286"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-287"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>a'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>a'</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-layout'>(</span><span class='hs-varid'>unseal</span> <span class='hs-varid'>myhead</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>dropn</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-288"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed2</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>seal2</span> <span class='hs-varop'>$</span> <span class='hs-varid'>hopefully</span> <span class='hs-varid'>p</span>
<a name="line-289"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error</span> <span class='hs-str'>"Patch out of range!"</span>
<a name="line-290"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-layout'>(</span><span class='hs-str'>"Invalid index range match given to matchPatch: "</span><span class='hs-varop'>++</span>
<a name="line-291"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchIndexRange</span> <span class='hs-varid'>a</span> <span class='hs-varid'>a'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-292"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>myhead</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed2</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-293"></a> <span class='hs-varid'>myhead</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-conop'>:<:</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal2</span> <span class='hs-varid'>t</span>
<a name="line-294"></a> <span class='hs-varid'>myhead</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:<:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>seal2</span> <span class='hs-varid'>x</span>
<a name="line-295"></a> <span class='hs-varid'>myhead</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-296"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-297"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-str'>"Couldn't matchPatch"</span>
<a name="line-298"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-varid'>ps</span>
<a name="line-299"></a>
<a name="line-300"></a><a name="getOnePatchset"></a><span class='hs-definition'>getOnePatchset</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-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'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</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>
<a name="line-301"></a> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-302"></a><span class='hs-definition'>getOnePatchset</span> <span class='hs-varid'>repository</span> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'>=</span>
<a name="line-303"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>nonrangeMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-304"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readRepo</span> <span class='hs-varid'>repository</span>
<a name="line-305"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>nonrangeMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-306"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-varid'>ps</span>
<a name="line-307"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-varid'>ps</span>
<a name="line-308"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>seal</span> <span class='hs-varop'>.</span> <span class='hs-varid'>scanContext</span><span class='hs-layout'>)</span> <span class='hs-varop'>`fmap`</span> <span class='hs-varid'>mmapFilePS</span> <span class='hs-layout'>(</span><span class='hs-varid'>toFilePath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>context_f</span> <span class='hs-varid'>fs</span><span class='hs-layout'>)</span>
<a name="line-309"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>context_f</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bug</span> <span class='hs-str'>"Couldn't match_nonrange_patchset"</span>
<a name="line-310"></a> <span class='hs-varid'>context_f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Context</span> <span class='hs-varid'>f</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'>f</span>
<a name="line-311"></a> <span class='hs-varid'>context_f</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</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'>context_f</span> <span class='hs-varid'>xs</span>
<a name="line-312"></a>
<a name="line-313"></a><a name="hasLastn"></a><span class='hs-comment'>-- | @hasLastn fs@ return the @--last@ argument in @fs@, if any.</span>
<a name="line-314"></a><span class='hs-definition'>hasLastn</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-conid'>Maybe</span> <span class='hs-conid'>Int</span>
<a name="line-315"></a><span class='hs-definition'>hasLastn</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-316"></a><span class='hs-definition'>hasLastn</span> <span class='hs-layout'>(</span><span class='hs-conid'>LastN</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</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'>error</span> <span class='hs-str'>"--last requires a positive integer argument."</span>
<a name="line-317"></a><span class='hs-definition'>hasLastn</span> <span class='hs-layout'>(</span><span class='hs-conid'>LastN</span> <span class='hs-varid'>n</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span>
<a name="line-318"></a><span class='hs-definition'>hasLastn</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hasLastn</span> <span class='hs-varid'>fs</span>
<a name="line-319"></a>
<a name="line-320"></a><a name="hasIndexRange"></a><span class='hs-definition'>hasIndexRange</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-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int</span><span class='hs-layout'>,</span><span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-321"></a><span class='hs-definition'>hasIndexRange</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-322"></a><span class='hs-definition'>hasIndexRange</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchIndexRange</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-conop'>:</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-323"></a><span class='hs-definition'>hasIndexRange</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:</span><span class='hs-varid'>fs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span>
<a name="line-324"></a>
<a name="line-325"></a><a name="matchFirstPatchset"></a><span class='hs-comment'>-- | @matchFirstPatchset fs ps@ returns the part of @ps@ before its</span>
<a name="line-326"></a><span class='hs-comment'>-- first matcher, ie the one that comes first dependencywise. Hence,</span>
<a name="line-327"></a><span class='hs-comment'>-- patches in @matchFirstPatchset fs ps@ are the context for the ones</span>
<a name="line-328"></a><span class='hs-comment'>-- we don't want.</span>
<a name="line-329"></a><span class='hs-definition'>matchFirstPatchset</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-330"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-331"></a><span class='hs-definition'>matchFirstPatchset</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>patchset</span> <span class='hs-keyglyph'>=</span>
<a name="line-332"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasLastn</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-333"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>dropn</span> <span class='hs-varid'>n</span> <span class='hs-varid'>patchset</span>
<a name="line-334"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span>
<a name="line-335"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-336"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>dropn</span> <span class='hs-varid'>b</span> <span class='hs-varid'>patchset</span>
<a name="line-337"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span>
<a name="line-338"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>firstMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-339"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-str'>"Couldn't matchFirstPatchset"</span>
<a name="line-340"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>unseal</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropn</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>firstMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-341"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-varid'>patchset</span>
<a name="line-342"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-varid'>patchset</span>
<a name="line-343"></a>
<a name="line-344"></a><a name="dropn"></a><span class='hs-comment'>-- | @dropn n ps@ drops the @n@ last patches from @ps@.</span>
<a name="line-345"></a><span class='hs-definition'>dropn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-346"></a><span class='hs-definition'>dropn</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varid'>ps</span>
<a name="line-347"></a><span class='hs-definition'>dropn</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropn</span> <span class='hs-varid'>n</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span>
<a name="line-348"></a><span class='hs-definition'>dropn</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span>
<a name="line-349"></a><span class='hs-definition'>dropn</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dropn</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span>
<a name="line-350"></a>
<a name="line-351"></a><a name="matchSecondPatchset"></a><span class='hs-comment'>-- | @matchSecondPatchset fs ps@ returns the part of @ps@ before its</span>
<a name="line-352"></a><span class='hs-comment'>-- second matcher, ie the one that comes last dependencywise.</span>
<a name="line-353"></a><span class='hs-definition'>matchSecondPatchset</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DarcsFlag</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-354"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-355"></a><span class='hs-definition'>matchSecondPatchset</span> <span class='hs-varid'>fs</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'>=</span>
<a name="line-356"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>hasIndexRange</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-357"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>dropn</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ps</span>
<a name="line-358"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span>
<a name="line-359"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>secondMatcher</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-360"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>bug</span> <span class='hs-str'>"Couldn't matchSecondPatchset"</span>
<a name="line-361"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>secondMatcherIsTag</span> <span class='hs-varid'>fs</span>
<a name="line-362"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-varid'>ps</span>
<a name="line-363"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-varid'>ps</span>
<a name="line-364"></a>
<a name="line-365"></a><a name="findAPatch"></a><span class='hs-comment'>-- | @findAPatch m ps@ returns the last patch in @ps@ matching @m@, and</span>
<a name="line-366"></a><span class='hs-comment'>-- calls 'error' if there is none.</span>
<a name="line-367"></a><span class='hs-definition'>findAPatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Sealed2</span> <span class='hs-layout'>(</span><span class='hs-conid'>Named</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-368"></a><span class='hs-definition'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Couldn't find patch matching "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>m</span>
<a name="line-369"></a><span class='hs-definition'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-370"></a><span class='hs-definition'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal2</span> <span class='hs-varop'>$</span> <span class='hs-varid'>hopefully</span> <span class='hs-varid'>p</span>
<a name="line-371"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>findAPatch</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-372"></a>
<a name="line-373"></a><a name="matchAPatchset"></a><span class='hs-comment'>-- | @matchAPatchset m ps@ returns a (the largest?) subset of @ps@</span>
<a name="line-374"></a><span class='hs-comment'>-- ending in patch which matches @m@. Calls 'error' if there is none.</span>
<a name="line-375"></a><span class='hs-definition'>matchAPatchset</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-376"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-377"></a><span class='hs-definition'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Couldn't find patch matching "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>m</span>
<a name="line-378"></a><span class='hs-definition'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-379"></a><span class='hs-definition'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-380"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>matchAPatchset</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-381"></a>
<a name="line-382"></a><a name="getMatchingTag"></a><span class='hs-comment'>-- | @getMatchingTag m ps@, where @m@ is a 'Matcher' which matches tags</span>
<a name="line-383"></a><span class='hs-comment'>-- returns a 'SealedPatchSet' containing all patches in the last tag which</span>
<a name="line-384"></a><span class='hs-comment'>-- matches @m@. Last tag means the most recent tag in repository order,</span>
<a name="line-385"></a><span class='hs-comment'>-- i.e. the last one you'd see if you ran darcs changes -t @m@. Calls</span>
<a name="line-386"></a><span class='hs-comment'>-- 'error' if there is no matching tag.</span>
<a name="line-387"></a><span class='hs-definition'>getMatchingTag</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>SealedPatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span><span class='hs-layout'>)</span>
<a name="line-388"></a><span class='hs-definition'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Couldn't find a tag matching "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>m</span>
<a name="line-389"></a><span class='hs-definition'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-390"></a><span class='hs-definition'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-391"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>seal</span> <span class='hs-varop'>$</span> <span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span>
<a name="line-392"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getMatchingTag</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-393"></a>
<a name="line-394"></a><a name="matchExists"></a><span class='hs-comment'>-- | @matchExists m ps@ tells whether there is a patch matching</span>
<a name="line-395"></a><span class='hs-comment'>-- @m@ in @ps@</span>
<a name="line-396"></a><span class='hs-definition'>matchExists</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>start</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-397"></a><span class='hs-definition'>matchExists</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-398"></a><span class='hs-definition'>matchExists</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>matchExists</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-399"></a><span class='hs-definition'>matchExists</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-varop'>$</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-400"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>matchExists</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-401"></a>
<a name="line-402"></a><a name="applyInvToMatcher"></a><span class='hs-definition'>applyInvToMatcher</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-403"></a> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>InclusiveOrExclusive</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-404"></a><span class='hs-definition'>applyInvToMatcher</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>impossible</span>
<a name="line-405"></a><span class='hs-definition'>applyInvToMatcher</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyInvToMatcher</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span>
<a name="line-406"></a> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-407"></a><span class='hs-definition'>applyInvToMatcher</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:<:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-408"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>applyMatcher</span> <span class='hs-varid'>m</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>when</span> <span class='hs-layout'>(</span><span class='hs-varid'>ioe</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Inclusive</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>applyInvp</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-409"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyInvp</span> <span class='hs-varid'>p</span> <span class='hs-varop'>>></span> <span class='hs-varid'>applyInvToMatcher</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-410"></a>
<a name="line-411"></a><a name="applyNInv"></a><span class='hs-comment'>-- | @applyNInv@ n ps applies the inverse of the last @n@ patches of @ps@.</span>
<a name="line-412"></a><span class='hs-definition'>applyNInv</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-413"></a><span class='hs-definition'>applyNInv</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-414"></a><span class='hs-definition'>applyNInv</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-conid'>NilRL</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Index out of range."</span>
<a name="line-415"></a><span class='hs-definition'>applyNInv</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-conid'>NilRL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Tagged</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ps</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-416"></a> <span class='hs-varid'>applyNInv</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>ts</span><span class='hs-layout'>)</span>
<a name="line-417"></a><span class='hs-definition'>applyNInv</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conop'>:<:</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-418"></a> <span class='hs-varid'>applyInvp</span> <span class='hs-varid'>p</span> <span class='hs-varop'>>></span> <span class='hs-varid'>applyNInv</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-419"></a>
<a name="line-420"></a>
<a name="line-421"></a><a name="getMatcherS"></a><span class='hs-definition'>getMatcherS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span>
<a name="line-422"></a> <span class='hs-conid'>InclusiveOrExclusive</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-423"></a><span class='hs-definition'>getMatcherS</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span> <span class='hs-keyglyph'>=</span>
<a name="line-424"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>matchExists</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-425"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>applyInvToMatcher</span> <span class='hs-varid'>ioe</span> <span class='hs-varid'>m</span> <span class='hs-varid'>repo</span>
<a name="line-426"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>fail</span> <span class='hs-varop'>$</span> <span class='hs-str'>"Couldn't match pattern "</span><span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>m</span>
<a name="line-427"></a>
<a name="line-428"></a><a name="getTagS"></a><span class='hs-definition'>getTagS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-varid'>m</span><span class='hs-layout'>,</span> <span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span>
<a name="line-429"></a> <span class='hs-conid'>Matcher</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-430"></a><span class='hs-definition'>getTagS</span> <span class='hs-varid'>match</span> <span class='hs-varid'>repo</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-431"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pinfo</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>patch2patchinfo</span> <span class='hs-varop'>`unseal2`</span> <span class='hs-layout'>(</span><span class='hs-varid'>findAPatch</span> <span class='hs-varid'>match</span> <span class='hs-varid'>repo</span><span class='hs-layout'>)</span>
<a name="line-432"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>getPatchesBeyondTag</span> <span class='hs-varid'>pinfo</span> <span class='hs-varid'>repo</span> <span class='hs-keyword'>of</span>
<a name="line-433"></a> <span class='hs-conid'>FlippedSeal</span> <span class='hs-varid'>extras</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>applyInvRL</span> <span class='hs-varid'>extras</span>
<a name="line-434"></a>
<a name="line-435"></a><a name="applyInvp"></a><span class='hs-comment'>-- | @applyInvp@ tries to get the patch that's in a 'PatchInfoAnd</span>
<a name="line-436"></a><span class='hs-comment'>-- patch', and to apply its inverse. If we fail to fetch the patch</span>
<a name="line-437"></a><span class='hs-comment'>-- (presumably in a partial repositiory), then we share our sorrow</span>
<a name="line-438"></a><span class='hs-comment'>-- with the user.</span>
<a name="line-439"></a><span class='hs-definition'>applyInvp</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'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-440"></a><span class='hs-definition'>applyInvp</span> <span class='hs-varid'>hp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>apply</span> <span class='hs-layout'>(</span><span class='hs-varid'>invert</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromHopefully</span> <span class='hs-varid'>hp</span><span class='hs-layout'>)</span>
<a name="line-441"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>fromHopefully</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>conscientiously</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>e</span> <span class='hs-keyglyph'>-></span>
<a name="line-442"></a> <span class='hs-varid'>text</span> <span class='hs-str'>"Sorry, partial repository problem. Patch not available:"</span>
<a name="line-443"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>e</span>
<a name="line-444"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>""</span>
<a name="line-445"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"If you think what you're trying to do is ok then"</span>
<a name="line-446"></a> <span class='hs-varop'>$$</span> <span class='hs-varid'>text</span> <span class='hs-str'>"report this as a bug on the darcs-user list."</span>
<a name="line-447"></a>
<a name="line-448"></a><a name="safetake"></a><span class='hs-comment'>-- | a version of 'take' for 'RL' lists that cater for contexts.</span>
<a name="line-449"></a><span class='hs-definition'>safetake</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RL</span> <span class='hs-varid'>a</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FlippedSeal</span> <span class='hs-layout'>(</span><span class='hs-conid'>RL</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-450"></a><span class='hs-definition'>safetake</span> <span class='hs-num'>0</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flipSeal</span> <span class='hs-conid'>NilRL</span>
<a name="line-451"></a><span class='hs-definition'>safetake</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>NilRL</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"There aren't that many patches..."</span>
<a name="line-452"></a><span class='hs-definition'>safetake</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-conop'>:<:</span><span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>`consRLSealed`</span> <span class='hs-varid'>safetake</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-keyword'>as</span>
<a name="line-453"></a>
<a name="line-454"></a><a name="withRecordedMatch"></a><span class='hs-definition'>withRecordedMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>RepoPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-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'>Repository</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>r</span> <span class='hs-varid'>u</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-455"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchSet</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-conid'>Origin</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-456"></a><span class='hs-definition'>withRecordedMatch</span> <span class='hs-varid'>r</span> <span class='hs-varid'>job</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>createPristineDirectoryTree</span> <span class='hs-varid'>r</span> <span class='hs-str'>"."</span>
<a name="line-457"></a> <span class='hs-varid'>readRepo</span> <span class='hs-varid'>r</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>job</span>
<a name="line-458"></a>
<a name="line-459"></a><a name="applyInvRL"></a><span class='hs-definition'>applyInvRL</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyMonad</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>ApplyState</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>MonadProgress</span> <span class='hs-varid'>m</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-keyglyph'>=></span> <span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>PatchInfoAnd</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-460"></a><span class='hs-definition'>applyInvRL</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>applyPatches</span> <span class='hs-varop'>.</span> <span class='hs-varid'>invertRL</span> <span class='hs-comment'>-- this gives nicer feedback</span>
</pre></body>
</html>
