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<title>src/Darcs/Patch/Prim/V3/Read.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE ViewPatterns, OverloadedStrings #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# OPTIONS_GHC -fno-warn-orphans #-}</span>
<a name="line-3"></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'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>Read</span> <span class='hs-conid'>()</span> <span class='hs-keyword'>where</span>
<a name="line-4"></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'>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-5"></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>
<a name="line-6"></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'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span><span class='hs-layout'>(</span> <span class='hs-conid'>PrimRead</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-7"></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'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>Core</span><span class='hs-layout'>(</span> <span class='hs-conid'>Prim</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'>Hunk</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-8"></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'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>ObjectMap</span>
<a name="line-9"></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-varid'>seal</span> <span class='hs-layout'>)</span>
<a name="line-10"></a>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span> <span class='hs-varid'>liftM</span><span class='hs-layout'>,</span> <span class='hs-varid'>liftM2</span> <span class='hs-layout'>)</span>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BC</span>
<a name="line-15"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span> <span class='hs-varid'>chr</span> <span class='hs-layout'>)</span>
<a name="line-16"></a>
<a name="line-17"></a><a name="instance%20PrimRead%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PrimRead</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-18"></a> <span class='hs-varid'>readPrim</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>skipSpace</span>
<a name="line-19"></a> <span class='hs-varid'>choice</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span> <span class='hs-varid'>seal</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span>
<a name="line-20"></a> <span class='hs-varid'>identity</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>hunk</span> <span class='hs-str'>"hunk"</span> <span class='hs-conid'>TextHunk</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>hunk</span> <span class='hs-str'>"binhunk"</span> <span class='hs-conid'>BinaryHunk</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>manifest</span> <span class='hs-str'>"manifest"</span> <span class='hs-conid'>Manifest</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>manifest</span> <span class='hs-str'>"demanifest"</span> <span class='hs-conid'>Demanifest</span> <span class='hs-keyglyph'>]</span>
<a name="line-25"></a>
<a name="line-26"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>manifest</span> <span class='hs-varid'>kind</span> <span class='hs-varid'>ctor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM2</span> <span class='hs-varid'>ctor</span> <span class='hs-layout'>(</span><span class='hs-varid'>patch</span> <span class='hs-varid'>kind</span><span class='hs-layout'>)</span> <span class='hs-varid'>location</span>
<a name="line-27"></a> <span class='hs-varid'>identity</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lexString</span> <span class='hs-str'>"identity"</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>Identity</span>
<a name="line-28"></a> <span class='hs-varid'>patch</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>string</span> <span class='hs-varid'>x</span> <span class='hs-varop'>>></span> <span class='hs-varid'>uuid</span>
<a name="line-29"></a> <span class='hs-varid'>uuid</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UUID</span> <span class='hs-varop'><$></span> <span class='hs-varid'>myLex'</span>
<a name="line-30"></a> <span class='hs-varid'>filename</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>encoded</span>
<a name="line-31"></a> <span class='hs-varid'>encoded</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeWhite</span> <span class='hs-varop'><$></span> <span class='hs-varid'>myLex'</span>
<a name="line-32"></a> <span class='hs-varid'>hunktext</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>skipSpace</span> <span class='hs-varop'>>></span> <span class='hs-varid'>choice</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>string</span> <span class='hs-str'>"."</span> <span class='hs-varop'>>></span> <span class='hs-varid'>encoded</span><span class='hs-layout'>,</span> <span class='hs-varid'>string</span> <span class='hs-str'>"!"</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-keyglyph'>]</span>
<a name="line-33"></a> <span class='hs-varid'>location</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM2</span> <span class='hs-conid'>(,)</span> <span class='hs-varid'>uuid</span> <span class='hs-varid'>filename</span>
<a name="line-34"></a> <span class='hs-varid'>hunk</span> <span class='hs-varid'>kind</span> <span class='hs-varid'>ctor</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>uid</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>patch</span> <span class='hs-varid'>kind</span>
<a name="line-35"></a> <span class='hs-varid'>offset</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>int</span>
<a name="line-36"></a> <span class='hs-varid'>old</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>hunktext</span>
<a name="line-37"></a> <span class='hs-varid'>new</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>hunktext</span>
<a name="line-38"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>ctor</span> <span class='hs-varid'>uid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>offset</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><a name="instance%20ReadPatch%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>ReadPatch</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-41"></a> <span class='hs-varid'>readPatch'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>readPrim</span> <span class='hs-varid'>undefined</span>
<a name="line-42"></a>
<a name="line-43"></a><a name="decodeWhite"></a><span class='hs-comment'>-- XXX a bytestring version of decodeWhite from Darcs.FileName</span>
<a name="line-44"></a><span class='hs-definition'>decodeWhite</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-45"></a><span class='hs-definition'>decodeWhite</span> <span class='hs-layout'>(</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\\'</span><span class='hs-layout'>,</span> <span class='hs-varid'>cs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-46"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>break</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-chr'>'\\'</span><span class='hs-layout'>)</span> <span class='hs-varid'>cs</span> <span class='hs-keyword'>of</span>
<a name="line-47"></a> <span class='hs-layout'>(</span><span class='hs-varid'>theord</span><span class='hs-layout'>,</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\\'</span><span class='hs-layout'>,</span> <span class='hs-varid'>rest</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span>
<a name="line-48"></a> <span class='hs-varid'>chr</span> <span class='hs-layout'>(</span><span class='hs-varid'>read</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>theord</span><span class='hs-layout'>)</span> <span class='hs-varop'>`</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span><span class='hs-varop'>`</span> <span class='hs-varid'>decodeWhite</span> <span class='hs-varid'>rest</span>
<a name="line-49"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error</span> <span class='hs-str'>"malformed filename"</span>
<a name="line-50"></a><span class='hs-definition'>decodeWhite</span> <span class='hs-layout'>(</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>cs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span> <span class='hs-varop'>`</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>cons</span><span class='hs-varop'>`</span> <span class='hs-varid'>decodeWhite</span> <span class='hs-varid'>cs</span>
<a name="line-51"></a><span class='hs-definition'>decodeWhite</span> <span class='hs-layout'>(</span><span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BC</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-52"></a>
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