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<title>src/Text/Pandoc/UUID.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-
<a name="line-2"></a>Copyright (C) 2010 John MacFarlane <jgm@berkeley.edu>
<a name="line-3"></a>
<a name="line-4"></a>This program is free software; you can redistribute it and/or modify
<a name="line-5"></a>it under the terms of the GNU General Public License as published by
<a name="line-6"></a>the Free Software Foundation; either version 2 of the License, or
<a name="line-7"></a>(at your option) any later version.
<a name="line-8"></a>
<a name="line-9"></a>This program is distributed in the hope that it will be useful,
<a name="line-10"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of
<a name="line-11"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<a name="line-12"></a>GNU General Public License for more details.
<a name="line-13"></a>
<a name="line-14"></a>You should have received a copy of the GNU General Public License
<a name="line-15"></a>along with this program; if not, write to the Free Software
<a name="line-16"></a>Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
<a name="line-17"></a>-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{- |
<a name="line-20"></a> Module : Text.Pandoc.UUID
<a name="line-21"></a> Copyright : Copyright (C) 2010 John MacFarlane
<a name="line-22"></a> License : GNU GPL, version 2 or above
<a name="line-23"></a>
<a name="line-24"></a> Maintainer : John MacFarlane <jgm@berkeley.edu>
<a name="line-25"></a> Stability : alpha
<a name="line-26"></a> Portability : portable
<a name="line-27"></a>
<a name="line-28"></a>UUID generation using Version 4 (random method) described
<a name="line-29"></a>in RFC4122. See <a href="http://tools.ietf.org/html/rfc4122">http://tools.ietf.org/html/rfc4122</a>
<a name="line-30"></a>-}</span>
<a name="line-31"></a>
<a name="line-32"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Pandoc</span><span class='hs-varop'>.</span><span class='hs-conid'>UUID</span> <span class='hs-layout'>(</span> <span class='hs-conid'>UUID</span><span class='hs-layout'>,</span> <span class='hs-varid'>getRandomUUID</span> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Printf</span> <span class='hs-layout'>(</span> <span class='hs-varid'>printf</span> <span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Random</span> <span class='hs-layout'>(</span> <span class='hs-varid'>randomIO</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span> <span class='hs-layout'>(</span> <span class='hs-varid'>setBit</span><span class='hs-layout'>,</span> <span class='hs-varid'>clearBit</span> <span class='hs-layout'>)</span>
<a name="line-38"></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>
<a name="line-39"></a>
<a name="line-40"></a><a name="UUID"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>UUID</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span>
<a name="line-41"></a> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span> <span class='hs-conid'>Word8</span>
<a name="line-42"></a>
<a name="line-43"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>UUID</span> <span class='hs-keyword'>where</span>
<a name="line-44"></a> <span class='hs-varid'>show</span> <span class='hs-layout'>(</span><span class='hs-conid'>UUID</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span> <span class='hs-varid'>e</span> <span class='hs-varid'>f</span> <span class='hs-varid'>g</span> <span class='hs-varid'>h</span> <span class='hs-varid'>i</span> <span class='hs-varid'>j</span> <span class='hs-varid'>k</span> <span class='hs-varid'>l</span> <span class='hs-varid'>m</span> <span class='hs-varid'>n</span> <span class='hs-varid'>o</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-45"></a> <span class='hs-str'>"urn:uuid:"</span> <span class='hs-varop'>++</span>
<a name="line-46"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>a</span> <span class='hs-varop'>++</span>
<a name="line-47"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>b</span> <span class='hs-varop'>++</span>
<a name="line-48"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>c</span> <span class='hs-varop'>++</span>
<a name="line-49"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>d</span> <span class='hs-varop'>++</span>
<a name="line-50"></a> <span class='hs-str'>"-"</span> <span class='hs-varop'>++</span>
<a name="line-51"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>e</span> <span class='hs-varop'>++</span>
<a name="line-52"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>f</span> <span class='hs-varop'>++</span>
<a name="line-53"></a> <span class='hs-str'>"-"</span> <span class='hs-varop'>++</span>
<a name="line-54"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>g</span> <span class='hs-varop'>++</span>
<a name="line-55"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>h</span> <span class='hs-varop'>++</span>
<a name="line-56"></a> <span class='hs-str'>"-"</span> <span class='hs-varop'>++</span>
<a name="line-57"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>i</span> <span class='hs-varop'>++</span>
<a name="line-58"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>j</span> <span class='hs-varop'>++</span>
<a name="line-59"></a> <span class='hs-str'>"-"</span> <span class='hs-varop'>++</span>
<a name="line-60"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>k</span> <span class='hs-varop'>++</span>
<a name="line-61"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>l</span> <span class='hs-varop'>++</span>
<a name="line-62"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>m</span> <span class='hs-varop'>++</span>
<a name="line-63"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>n</span> <span class='hs-varop'>++</span>
<a name="line-64"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>o</span> <span class='hs-varop'>++</span>
<a name="line-65"></a> <span class='hs-varid'>printf</span> <span class='hs-str'>"%02x"</span> <span class='hs-varid'>p</span>
<a name="line-66"></a>
<a name="line-67"></a><a name="getRandomUUID"></a><span class='hs-definition'>getRandomUUID</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>UUID</span>
<a name="line-68"></a><span class='hs-definition'>getRandomUUID</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-69"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>getRN</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Word8</span>
<a name="line-70"></a> <span class='hs-varid'>getRN</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>randomIO</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span><span class='hs-layout'>)</span>
<a name="line-71"></a> <span class='hs-keyglyph'>[</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-varid'>d</span><span class='hs-layout'>,</span><span class='hs-varid'>e</span><span class='hs-layout'>,</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span><span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-varid'>h</span><span class='hs-layout'>,</span><span class='hs-varid'>i</span><span class='hs-layout'>,</span><span class='hs-varid'>j</span><span class='hs-layout'>,</span><span class='hs-varid'>k</span><span class='hs-layout'>,</span><span class='hs-varid'>l</span><span class='hs-layout'>,</span><span class='hs-varid'>m</span><span class='hs-layout'>,</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-varid'>o</span><span class='hs-layout'>,</span><span class='hs-varid'>p</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mapM</span> <span class='hs-varid'>getRN</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>[</span><span class='hs-num'>1</span><span class='hs-keyglyph'>..</span><span class='hs-num'>16</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Int</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-72"></a> <span class='hs-comment'>-- set variant</span>
<a name="line-73"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>i'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-varop'>`setBit`</span> <span class='hs-num'>7</span> <span class='hs-varop'>`clearBit`</span> <span class='hs-num'>6</span>
<a name="line-74"></a> <span class='hs-comment'>-- set version (0100 for random)</span>
<a name="line-75"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>g'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-varop'>`clearBit`</span> <span class='hs-num'>7</span> <span class='hs-varop'>`setBit`</span> <span class='hs-num'>6</span> <span class='hs-varop'>`clearBit`</span> <span class='hs-num'>5</span> <span class='hs-varop'>`clearBit`</span> <span class='hs-num'>4</span>
<a name="line-76"></a> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>UUID</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span> <span class='hs-varid'>e</span> <span class='hs-varid'>f</span> <span class='hs-varid'>g'</span> <span class='hs-varid'>h</span> <span class='hs-varid'>i'</span> <span class='hs-varid'>j</span> <span class='hs-varid'>k</span> <span class='hs-varid'>l</span> <span class='hs-varid'>m</span> <span class='hs-varid'>n</span> <span class='hs-varid'>o</span> <span class='hs-varid'>p</span>
<a name="line-77"></a>
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