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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK hide #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE FlexibleInstances, TypeSynonymInstances #-}</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='hs-comment'>{- |
<a name="line-5"></a> Module : Data.GraphViz.Internal.State
<a name="line-6"></a> Description : Printing and parsing state.
<a name="line-7"></a> Copyright : (c) Ivan Lazar Miljenovic
<a name="line-8"></a> License : 3-Clause BSD-style
<a name="line-9"></a> Maintainer : Ivan.Miljenovic@gmail.com
<a name="line-10"></a>
<a name="line-11"></a> When printing and parsing Dot code, some items depend on values
<a name="line-12"></a> that are set earlier.
<a name="line-13"></a>-}</span>
<a name="line-14"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>GraphViz</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>
<a name="line-15"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>GraphvizStateM</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-16"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>GraphvizState</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-17"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>AttributeType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-18"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setAttributeType</span>
<a name="line-19"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getAttributeType</span>
<a name="line-20"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>initialState</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setDirectedness</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getDirectedness</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setLayerSep</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getLayerSep</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setLayerListSep</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getLayerListSep</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>setColorScheme</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getColorScheme</span>
<a name="line-29"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-30"></a>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>GraphViz</span><span class='hs-varop'>.</span><span class='hs-conid'>Attributes</span><span class='hs-varop'>.</span><span class='hs-conid'>ColorScheme</span>
<a name="line-32"></a>
<a name="line-33"></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-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span> <span class='hs-layout'>(</span><span class='hs-conid'>State</span><span class='hs-layout'>,</span> <span class='hs-varid'>gets</span><span class='hs-layout'>,</span> <span class='hs-varid'>modify</span><span class='hs-layout'>)</span>
<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'>ParserCombinators</span><span class='hs-varop'>.</span><span class='hs-conid'>Poly</span><span class='hs-varop'>.</span><span class='hs-conid'>StateText</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parser</span><span class='hs-layout'>,</span> <span class='hs-varid'>stQuery</span><span class='hs-layout'>,</span> <span class='hs-varid'>stUpdate</span><span class='hs-layout'>)</span>
<a name="line-35"></a>
<a name="line-36"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-37"></a>
<a name="line-38"></a><a name="GraphvizStateM"></a><span class='hs-keyword'>class</span> <span class='hs-layout'>(</span><span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span> <span class='hs-keyword'>where</span>
<a name="line-39"></a> <span class='hs-varid'>modifyGS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizState</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>GraphvizState</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-40"></a>
<a name="line-41"></a> <span class='hs-varid'>getsGS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizState</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>a</span>
<a name="line-42"></a>
<a name="line-43"></a><a name="instance%20GraphvizStateM%20(State%20GraphvizState)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>GraphvizStateM</span> <span class='hs-layout'>(</span><span class='hs-conid'>State</span> <span class='hs-conid'>GraphvizState</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-44"></a> <span class='hs-varid'>modifyGS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modify</span>
<a name="line-45"></a>
<a name="line-46"></a> <span class='hs-varid'>getsGS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gets</span>
<a name="line-47"></a>
<a name="line-48"></a><a name="instance%20GraphvizStateM%20(Parser%20GraphvizState)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>GraphvizStateM</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parser</span> <span class='hs-conid'>GraphvizState</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-49"></a> <span class='hs-varid'>modifyGS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stUpdate</span>
<a name="line-50"></a>
<a name="line-51"></a> <span class='hs-varid'>getsGS</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stQuery</span>
<a name="line-52"></a>
<a name="line-53"></a><a name="AttributeType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>AttributeType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GraphAttribute</span>
<a name="line-54"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>SubGraphAttribute</span>
<a name="line-55"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>ClusterAttribute</span>
<a name="line-56"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>NodeAttribute</span>
<a name="line-57"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>EdgeAttribute</span>
<a name="line-58"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span><span class='hs-layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a><a name="GraphvizState"></a><span class='hs-comment'>-- | Several aspects of Dot code are either global or mutable state.</span>
<a name="line-61"></a><a name="GraphvizState"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>GraphvizState</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GS</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-62"></a> <span class='hs-comment'>-- ^ If 'False', allow fallbacks for</span>
<a name="line-63"></a> <span class='hs-comment'>-- attributes that don't match known</span>
<a name="line-64"></a> <span class='hs-comment'>-- specification when parsing.</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>directedEdges</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>layerSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-67"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>layerListSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-68"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>attributeType</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>AttributeType</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>graphColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>ColorScheme</span>
<a name="line-70"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>clusterColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>ColorScheme</span>
<a name="line-71"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>nodeColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>ColorScheme</span>
<a name="line-72"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>edgeColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>ColorScheme</span>
<a name="line-73"></a> <span class='hs-layout'>}</span>
<a name="line-74"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span><span class='hs-layout'>)</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="initialState"></a><span class='hs-definition'>initialState</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GraphvizState</span>
<a name="line-77"></a><span class='hs-definition'>initialState</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GS</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parseStrictly</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-78"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>directedEdges</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-79"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>layerSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defLayerSep</span>
<a name="line-80"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>layerListSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>defLayerListSep</span>
<a name="line-81"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>attributeType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GraphAttribute</span>
<a name="line-82"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>graphColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>X11</span>
<a name="line-83"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>clusterColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>X11</span>
<a name="line-84"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>nodeColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>X11</span>
<a name="line-85"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>edgeColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>X11</span>
<a name="line-86"></a> <span class='hs-layout'>}</span>
<a name="line-87"></a>
<a name="line-88"></a><a name="setDirectedness"></a><span class='hs-definition'>setDirectedness</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-89"></a><span class='hs-definition'>setDirectedness</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyGS</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>directedEdges</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d</span> <span class='hs-layout'>}</span> <span class='hs-layout'>)</span>
<a name="line-90"></a>
<a name="line-91"></a><a name="getDirectedness"></a><span class='hs-definition'>getDirectedness</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Bool</span>
<a name="line-92"></a><span class='hs-definition'>getDirectedness</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>directedEdges</span>
<a name="line-93"></a>
<a name="line-94"></a><a name="setAttributeType"></a><span class='hs-definition'>setAttributeType</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>AttributeType</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-95"></a><span class='hs-definition'>setAttributeType</span> <span class='hs-varid'>tp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyGS</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>attributeType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tp</span> <span class='hs-layout'>}</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="getAttributeType"></a><span class='hs-definition'>getAttributeType</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-conid'>AttributeType</span>
<a name="line-98"></a><span class='hs-definition'>getAttributeType</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>attributeType</span>
<a name="line-99"></a>
<a name="line-100"></a><a name="setLayerSep"></a><span class='hs-definition'>setLayerSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-101"></a><span class='hs-definition'>setLayerSep</span> <span class='hs-varid'>sep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyGS</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>layerSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sep</span> <span class='hs-layout'>}</span> <span class='hs-layout'>)</span>
<a name="line-102"></a>
<a name="line-103"></a><a name="getLayerSep"></a><span class='hs-definition'>getLayerSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-104"></a><span class='hs-definition'>getLayerSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>layerSep</span>
<a name="line-105"></a>
<a name="line-106"></a><a name="setLayerListSep"></a><span class='hs-definition'>setLayerListSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-107"></a><span class='hs-definition'>setLayerListSep</span> <span class='hs-varid'>sep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>modifyGS</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>layerListSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sep</span> <span class='hs-layout'>}</span> <span class='hs-layout'>)</span>
<a name="line-108"></a>
<a name="line-109"></a><a name="getLayerListSep"></a><span class='hs-definition'>getLayerListSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-110"></a><span class='hs-definition'>getLayerListSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>layerListSep</span>
<a name="line-111"></a>
<a name="line-112"></a><a name="setColorScheme"></a><span class='hs-definition'>setColorScheme</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>ColorScheme</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-113"></a><span class='hs-definition'>setColorScheme</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>tp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>attributeType</span>
<a name="line-114"></a> <span class='hs-varid'>modifyGS</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>gs</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>tp</span> <span class='hs-keyword'>of</span>
<a name="line-115"></a> <span class='hs-conid'>GraphAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>graphColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-116"></a> <span class='hs-comment'>-- subgraphs don't have specified scheme</span>
<a name="line-117"></a> <span class='hs-conid'>SubGraphAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>graphColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-118"></a> <span class='hs-conid'>ClusterAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>clusterColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-119"></a> <span class='hs-conid'>NodeAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>nodeColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-120"></a> <span class='hs-conid'>EdgeAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>gs</span> <span class='hs-layout'>{</span> <span class='hs-varid'>edgeColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-121"></a>
<a name="line-122"></a><a name="getColorScheme"></a><span class='hs-definition'>getColorScheme</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GraphvizStateM</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-conid'>ColorScheme</span>
<a name="line-123"></a><span class='hs-definition'>getColorScheme</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>tp</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>getsGS</span> <span class='hs-varid'>attributeType</span>
<a name="line-124"></a> <span class='hs-varid'>getsGS</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>tp</span> <span class='hs-keyword'>of</span>
<a name="line-125"></a> <span class='hs-conid'>GraphAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>graphColor</span>
<a name="line-126"></a> <span class='hs-comment'>-- subgraphs don't have specified scheme</span>
<a name="line-127"></a> <span class='hs-conid'>SubGraphAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>graphColor</span>
<a name="line-128"></a> <span class='hs-conid'>ClusterAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>clusterColor</span>
<a name="line-129"></a> <span class='hs-conid'>NodeAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>nodeColor</span>
<a name="line-130"></a> <span class='hs-conid'>EdgeAttribute</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>edgeColor</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="defLayerSep"></a><span class='hs-comment'>-- | The default separators for 'LayerSep'.</span>
<a name="line-133"></a><span class='hs-definition'>defLayerSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-134"></a><span class='hs-definition'>defLayerSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-chr'>' '</span><span class='hs-layout'>,</span> <span class='hs-chr'>':'</span><span class='hs-layout'>,</span> <span class='hs-chr'>'\t'</span><span class='hs-keyglyph'>]</span>
<a name="line-135"></a>
<a name="line-136"></a><a name="defLayerListSep"></a><span class='hs-comment'>-- | The default separators for 'LayerListSep'.</span>
<a name="line-137"></a><span class='hs-definition'>defLayerListSep</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Char</span><span class='hs-keyglyph'>]</span>
<a name="line-138"></a><span class='hs-definition'>defLayerListSep</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-chr'>','</span><span class='hs-keyglyph'>]</span>
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