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<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2002-2003 David Roundy</span>
<a name="line-2"></a><span class='hs-comment'>--</span>
<a name="line-3"></a><span class='hs-comment'>-- This program is free software; you can redistribute it and/or modify</span>
<a name="line-4"></a><span class='hs-comment'>-- it under the terms of the GNU General Public License as published by</span>
<a name="line-5"></a><span class='hs-comment'>-- the Free Software Foundation; either version 2, or (at your option)</span>
<a name="line-6"></a><span class='hs-comment'>-- any later version.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- This program is distributed in the hope that it will be useful,</span>
<a name="line-9"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-10"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="line-11"></a><span class='hs-comment'>-- GNU General Public License for more details.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- You should have received a copy of the GNU General Public License</span>
<a name="line-14"></a><span class='hs-comment'>-- along with this program; see the file COPYING. If not, write to</span>
<a name="line-15"></a><span class='hs-comment'>-- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="line-16"></a><span class='hs-comment'>-- Boston, MA 02110-1301, USA.</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Read</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ReadPatch</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>readPatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>readPatchPartial</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>bracketedFL</span><span class='hs-layout'>,</span> <span class='hs-varid'>peekfor</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>readFileName</span> <span class='hs-layout'>)</span>
<a name="line-24"></a> <span class='hs-keyword'>where</span>
<a name="line-25"></a>
<a name="line-26"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span> <span class='hs-varid'>pi</span> <span class='hs-layout'>)</span>
<a name="line-27"></a>
<a name="line-28"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>ByteStringUtils</span> <span class='hs-layout'>(</span> <span class='hs-varid'>dropSpace</span> <span class='hs-layout'>)</span>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>,</span> <span class='hs-varid'>null</span><span class='hs-layout'>)</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Bracketed</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Bracketed</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>unBracketedFL</span> <span class='hs-layout'>)</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>FileName</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-varid'>fp2fn</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps2fn</span><span class='hs-layout'>,</span> <span class='hs-varid'>decodeWhite</span> <span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Format</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchListFormat</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'>ListFormat</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'>FileNameFormat</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadMonads</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParserM</span><span class='hs-layout'>,</span>
<a name="line-35"></a> <span class='hs-varid'>parseStrictly</span><span class='hs-layout'>,</span>
<a name="line-36"></a> <span class='hs-varid'>choice</span><span class='hs-layout'>,</span> <span class='hs-varid'>lexChar</span><span class='hs-layout'>,</span> <span class='hs-varid'>lexString</span><span class='hs-layout'>,</span>
<a name="line-37"></a> <span class='hs-varid'>checkConsumes</span> <span class='hs-layout'>)</span>
<a name="line-38"></a>
<a name="line-39"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FL</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>RL</span><span class='hs-layout'>,</span> <span class='hs-varid'>reverseFL</span> <span class='hs-layout'>)</span>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Sealed</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapSeal</span> <span class='hs-layout'>)</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><|></span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-43"></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'>mzero</span> <span class='hs-layout'>)</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BC</span> <span class='hs-layout'>(</span> <span class='hs-conid'>ByteString</span><span class='hs-layout'>,</span> <span class='hs-varid'>unpack</span> <span class='hs-layout'>)</span>
<a name="line-45"></a>
<a name="line-46"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-47"></a>
<a name="line-48"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>where</span>
<a name="line-49"></a> <span class='hs-varid'>readPatch'</span>
<a name="line-50"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParserM</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-51"></a>
<a name="line-52"></a><a name="readPatchPartial"></a><span class='hs-definition'>readPatchPartial</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-definition'>readPatchPartial</span> <span class='hs-varid'>ps</span>
<a name="line-54"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-varid'>readPatch'</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-55"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps'</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'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps'</span><span class='hs-layout'>)</span>
<a name="line-56"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="readPatch"></a><span class='hs-definition'>readPatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-59"></a><span class='hs-definition'>readPatch</span> <span class='hs-varid'>ps</span>
<a name="line-60"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>readPatchPartial</span> <span class='hs-varid'>ps</span> <span class='hs-keyword'>of</span>
<a name="line-61"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>ps'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-layout'>(</span><span class='hs-varid'>dropSpace</span> <span class='hs-varid'>ps'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-varid'>p</span>
<a name="line-62"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="instance%20ReadPatch%20(Bracketed%20p)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ReadPatch</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bracketed</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-65"></a> <span class='hs-varid'>readPatch'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapSeal</span> <span class='hs-conid'>Braced</span> <span class='hs-varop'><$></span> <span class='hs-varid'>bracketedFL</span> <span class='hs-varid'>readPatch'</span> <span class='hs-chr'>'{'</span> <span class='hs-chr'>'}'</span>
<a name="line-66"></a> <span class='hs-varop'><|></span>
<a name="line-67"></a> <span class='hs-varid'>mapSeal</span> <span class='hs-conid'>Parens</span> <span class='hs-varop'><$></span> <span class='hs-varid'>bracketedFL</span> <span class='hs-varid'>readPatch'</span> <span class='hs-chr'>'('</span> <span class='hs-chr'>')'</span>
<a name="line-68"></a> <span class='hs-varop'><|></span>
<a name="line-69"></a> <span class='hs-varid'>mapSeal</span> <span class='hs-conid'>Singleton</span> <span class='hs-varop'><$></span> <span class='hs-varid'>readPatch'</span>
<a name="line-70"></a>
<a name="line-71"></a><a name="instance%20ReadPatch%20(FL%20p)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>PatchListFormat</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ReadPatch</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-72"></a> <span class='hs-varid'>readPatch'</span>
<a name="line-73"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ListFormatV1</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>patchListFormat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ListFormat</span> <span class='hs-varid'>p</span>
<a name="line-74"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapSeal</span> <span class='hs-varid'>unBracketedFL</span> <span class='hs-varop'><$></span> <span class='hs-varid'>readPatch'</span>
<a name="line-75"></a> <span class='hs-comment'>-- in the V2 format case, we only need to support () on reading, not {}</span>
<a name="line-76"></a> <span class='hs-comment'>-- for simplicity we just go through the same code path.</span>
<a name="line-77"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ListFormatV2</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>patchListFormat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ListFormat</span> <span class='hs-varid'>p</span>
<a name="line-78"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapSeal</span> <span class='hs-varid'>unBracketedFL</span> <span class='hs-varop'><$></span> <span class='hs-varid'>readPatch'</span>
<a name="line-79"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>
<a name="line-80"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>read_patches</span>
<a name="line-81"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>read_patches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParserM</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-varid'>read_patches</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-comment'>--tracePeek "starting FL read"</span>
<a name="line-83"></a> <span class='hs-comment'>-- checkConsumes is needed to make sure that something is read,</span>
<a name="line-84"></a> <span class='hs-comment'>-- to avoid stack overflow when parsing FL (FL p)</span>
<a name="line-85"></a> <span class='hs-varid'>mp</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'><$></span> <span class='hs-varid'>checkConsumes</span> <span class='hs-varid'>readPatch'</span><span class='hs-layout'>)</span> <span class='hs-varop'><|></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-86"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>mp</span> <span class='hs-keyword'>of</span>
<a name="line-87"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span> <span class='hs-comment'>--tracePeek "found one patch"</span>
<a name="line-88"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>read_patches</span>
<a name="line-89"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span>
<a name="line-90"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Sealed</span> <span class='hs-conid'>NilFL</span>
<a name="line-91"></a><span class='hs-comment'>-- tracePeek x = do y <- peekInput</span>
<a name="line-92"></a><span class='hs-comment'>-- traceDoc (greenText x $$ greenText (show $ sal_to_string y)) return ()</span>
<a name="line-93"></a>
<a name="line-94"></a><a name="instance%20ReadPatch%20(RL%20p)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>ReadPatch</span> <span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>PatchListFormat</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ReadPatch</span> <span class='hs-layout'>(</span><span class='hs-conid'>RL</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-95"></a> <span class='hs-varid'>readPatch'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapSeal</span> <span class='hs-varid'>reverseFL</span> <span class='hs-varop'><$></span> <span class='hs-varid'>readPatch'</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="bracketedFL"></a><span class='hs-comment'>{-# INLINE bracketedFL #-}</span>
<a name="line-98"></a><span class='hs-definition'>bracketedFL</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>p</span> <span class='hs-varid'>m</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>ParserM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span>
<a name="line-99"></a> <span class='hs-layout'>(</span><span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-100"></a><span class='hs-definition'>bracketedFL</span> <span class='hs-varid'>parser</span> <span class='hs-varid'>pre</span> <span class='hs-varid'>post</span> <span class='hs-keyglyph'>=</span>
<a name="line-101"></a> <span class='hs-varid'>peekforc</span> <span class='hs-varid'>pre</span> <span class='hs-varid'>bfl</span> <span class='hs-varid'>mzero</span>
<a name="line-102"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>bfl</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FORALL</span><span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-conid'>FL</span> <span class='hs-varid'>p</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>z</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-103"></a> <span class='hs-varid'>bfl</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>peekforc</span> <span class='hs-varid'>post</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Sealed</span> <span class='hs-conid'>NilFL</span><span class='hs-layout'>)</span>
<a name="line-104"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>do</span> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parser</span>
<a name="line-105"></a> <span class='hs-conid'>Sealed</span> <span class='hs-varid'>ps</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>bfl</span>
<a name="line-106"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Sealed</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-conop'>:>:</span><span class='hs-varid'>ps</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-107"></a>
<a name="line-108"></a><a name="peekforc"></a><span class='hs-comment'>{-# INLINE peekforc #-}</span>
<a name="line-109"></a><span class='hs-definition'>peekforc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParserM</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-110"></a><span class='hs-definition'>peekforc</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ifstr</span> <span class='hs-varid'>ifnot</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>choice</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>lexChar</span> <span class='hs-varid'>c</span> <span class='hs-varop'>>></span> <span class='hs-varid'>ifstr</span>
<a name="line-111"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ifnot</span> <span class='hs-keyglyph'>]</span>
<a name="line-112"></a>
<a name="line-113"></a><a name="peekfor"></a><span class='hs-definition'>peekfor</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ParserM</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-114"></a><span class='hs-definition'>peekfor</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ifstr</span> <span class='hs-varid'>ifnot</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>choice</span> <span class='hs-keyglyph'>[</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>lexString</span> <span class='hs-varid'>ps</span>
<a name="line-115"></a> <span class='hs-varid'>ifstr</span>
<a name="line-116"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ifnot</span> <span class='hs-keyglyph'>]</span>
<a name="line-117"></a><span class='hs-comment'>{-# INLINE peekfor #-}</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="readFileName"></a><span class='hs-definition'>readFileName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FileNameFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FileName</span>
<a name="line-120"></a><span class='hs-definition'>readFileName</span> <span class='hs-conid'>OldFormat</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ps2fn</span>
<a name="line-121"></a><span class='hs-definition'>readFileName</span> <span class='hs-conid'>NewFormat</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fp2fn</span> <span class='hs-varop'>.</span> <span class='hs-varid'>decodeWhite</span> <span class='hs-varop'>.</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span>
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