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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Data/GraphViz/Types/Graph.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP, FlexibleInstances, MultiParamTypeClasses #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>{- |
<a name="line-4"></a>   Module      : Data.GraphViz.Types.Graph
<a name="line-5"></a>   Description : A graph-like representation of Dot graphs.
<a name="line-6"></a>   Copyright   : (c) Ivan Lazar Miljenovic
<a name="line-7"></a>   License     : 3-Clause BSD-style
<a name="line-8"></a>   Maintainer  : Ivan.Miljenovic@gmail.com
<a name="line-9"></a>
<a name="line-10"></a>   It is sometimes useful to be able to manipulate a Dot graph /as/ an
<a name="line-11"></a>   actual graph.  This representation lets you do so, using an
<a name="line-12"></a>   inductive approach based upon that from FGL (note that 'DotGraph'
<a name="line-13"></a>   is /not/ an instance of the FGL classes due to having the wrong
<a name="line-14"></a>   kind).  Note, however, that the API is not as complete as proper
<a name="line-15"></a>   graph implementations.
<a name="line-16"></a>
<a name="line-17"></a>   For purposes of manipulation, all edges are found in the root graph
<a name="line-18"></a>   and not in a cluster; as such, having 'EdgeAttrs' in a cluster's
<a name="line-19"></a>   'GlobalAttributes' is redundant.
<a name="line-20"></a>
<a name="line-21"></a>   Printing is achieved via "Data.GraphViz.Types.Canonical" (using
<a name="line-22"></a>   'toCanonical') and parsing via "Data.GraphViz.Types.Generalised"
<a name="line-23"></a>   (so /any/ piece of Dot code can be parsed in).
<a name="line-24"></a>
<a name="line-25"></a>   This representation doesn't allow non-cluster sub-graphs.  Also, all
<a name="line-26"></a>   clusters /must/ have a unique identifier.  For those functions (with
<a name="line-27"></a>   the exception of 'DotRepr' methods) that take or return a \"@Maybe
<a name="line-28"></a>   GraphID@\", a value of \"@Nothing@\" refers to the root graph; \"@Just
<a name="line-29"></a>   clust@\" refers to the cluster with the identifier \"@clust@\".
<a name="line-30"></a>
<a name="line-31"></a>   You would not typically explicitly create these values, instead
<a name="line-32"></a>   converting existing Dot graphs (via 'fromDotRepr').  However, one
<a name="line-33"></a>   way of constructing the sample graph would be:
<a name="line-34"></a>
<a name="line-35"></a>   &gt; setID (Str "G")
<a name="line-36"></a>   &gt; . setStrictness False
<a name="line-37"></a>   &gt; . setIsDirected True
<a name="line-38"></a>   &gt; . setClusterAttributes (Int 0) [GraphAttrs [style filled, color LightGray, textLabel "process #1"], NodeAttrs [style filled, color White]]
<a name="line-39"></a>   &gt; . setClusterAttributes (Int 1) [GraphAttrs [textLabel "process #2", color Blue], NodeAttrs [style filled]]
<a name="line-40"></a>   &gt; $ composeList [ Cntxt "a0"    (Just $ Int 0)   []               [("a3",[]),("start",[])] [("a1",[])]
<a name="line-41"></a>   &gt;               , Cntxt "a1"    (Just $ Int 0)   []               []                       [("a2",[]),("b3",[])]
<a name="line-42"></a>   &gt;               , Cntxt "a2"    (Just $ Int 0)   []               []                       [("a3",[])]
<a name="line-43"></a>   &gt;               , Cntxt "a3"    (Just $ Int 0)   []               [("b2",[])]              [("end",[])]
<a name="line-44"></a>   &gt;               , Cntxt "b0"    (Just $ Int 1)   []               [("start",[])]           [("b1",[])]
<a name="line-45"></a>   &gt;               , Cntxt "b1"    (Just $ Int 1)   []               []                       [("b2",[])]
<a name="line-46"></a>   &gt;               , Cntxt "b2"    (Just $ Int 1)   []               []                       [("b3",[])]
<a name="line-47"></a>   &gt;               , Cntxt "b3"    (Just $ Int 1)   []               []                       [("end",[])]
<a name="line-48"></a>   &gt;               , Cntxt "end"   Nothing          [shape MSquare]  []                       []
<a name="line-49"></a>   &gt;               , Cntxt "start" Nothing          [shape MDiamond] []                       []]
<a name="line-50"></a>
<a name="line-51"></a> -}</span>
<a name="line-52"></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'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Graph</span>
<a name="line-53"></a>       <span class='hs-layout'>(</span> <span class='hs-conid'>DotGraph</span>
<a name="line-54"></a>       <span class='hs-layout'>,</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-55"></a>       <span class='hs-layout'>,</span> <span class='hs-conid'>Context</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-56"></a>         <span class='hs-comment'>-- * Conversions</span>
<a name="line-57"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>toCanonical</span>
<a name="line-58"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>unsafeFromCanonical</span>
<a name="line-59"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>fromDotRepr</span>
<a name="line-60"></a>         <span class='hs-comment'>-- * Graph information</span>
<a name="line-61"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>isEmpty</span>
<a name="line-62"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>hasClusters</span>
<a name="line-63"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>isEmptyGraph</span>
<a name="line-64"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>graphAttributes</span>
<a name="line-65"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>parentOf</span>
<a name="line-66"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>clusterAttributes</span>
<a name="line-67"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>foundInCluster</span>
<a name="line-68"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>attributesOf</span>
<a name="line-69"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>predecessorsOf</span>
<a name="line-70"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>successorsOf</span>
<a name="line-71"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>adjacentTo</span>
<a name="line-72"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>adjacent</span>
<a name="line-73"></a>         <span class='hs-comment'>-- * Graph construction</span>
<a name="line-74"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>mkGraph</span>
<a name="line-75"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>emptyGraph</span>
<a name="line-76"></a>       <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>&amp;</span><span class='hs-layout'>)</span>
<a name="line-77"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>composeList</span>
<a name="line-78"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>addNode</span>
<a name="line-79"></a>       <span class='hs-layout'>,</span> <span class='hs-conid'>DotNode</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-80"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>addDotNode</span>
<a name="line-81"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>addEdge</span>
<a name="line-82"></a>       <span class='hs-layout'>,</span> <span class='hs-conid'>DotEdge</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-83"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>addDotEdge</span>
<a name="line-84"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>addCluster</span>
<a name="line-85"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>setClusterParent</span>
<a name="line-86"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>setClusterAttributes</span>
<a name="line-87"></a>         <span class='hs-comment'>-- * Graph deconstruction</span>
<a name="line-88"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>decompose</span>
<a name="line-89"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>decomposeAny</span>
<a name="line-90"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>decomposeList</span>
<a name="line-91"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>deleteNode</span>
<a name="line-92"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>deleteAllEdges</span>
<a name="line-93"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>deleteEdge</span>
<a name="line-94"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>deleteDotEdge</span>
<a name="line-95"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>deleteCluster</span>
<a name="line-96"></a>       <span class='hs-layout'>,</span> <span class='hs-varid'>removeEmptyClusters</span>
<a name="line-97"></a>       <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-98"></a>
<a name="line-99"></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'>Algorithms</span>            <span class='hs-layout'>(</span><span class='hs-conid'>CanonicaliseOptions</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-100"></a>                                                      <span class='hs-varid'>canonicaliseOptions</span><span class='hs-layout'>)</span>
<a name="line-101"></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'>Algorithms</span><span class='hs-varop'>.</span><span class='hs-conid'>Clustering</span>
<a name="line-102"></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'>Complete</span>   <span class='hs-layout'>(</span><span class='hs-conid'>Attributes</span><span class='hs-layout'>)</span>
<a name="line-103"></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'>Same</span>
<a name="line-104"></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'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span>         <span class='hs-layout'>(</span><span class='hs-varid'>groupSortBy</span><span class='hs-layout'>,</span>
<a name="line-105"></a>                                                      <span class='hs-varid'>groupSortCollectBy</span><span class='hs-layout'>)</span>
<a name="line-106"></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'>Types</span>
<a name="line-107"></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'>GraphViz</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Canonical</span>       <span class='hs-keyword'>as</span> <span class='hs-conid'>C</span>
<a name="line-108"></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'>GraphViz</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Generalised</span>     <span class='hs-keyword'>as</span> <span class='hs-conid'>G</span>
<a name="line-109"></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'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span> <span class='hs-layout'>(</span><span class='hs-varid'>partitionGlobal</span><span class='hs-layout'>)</span>
<a name="line-110"></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'>GraphViz</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>           <span class='hs-keyword'>as</span> <span class='hs-conid'>St</span>
<a name="line-111"></a>
<a name="line-112"></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-varid'>liftA2</span><span class='hs-layout'>)</span>
<a name="line-113"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</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-114"></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'>Foldable</span>                   <span class='hs-keyword'>as</span> <span class='hs-conid'>F</span>
<a name="line-115"></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'>delete</span><span class='hs-layout'>,</span> <span class='hs-varid'>foldl'</span><span class='hs-layout'>,</span> <span class='hs-varid'>unfoldr</span><span class='hs-layout'>)</span>
<a name="line-116"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Map</span>                        <span class='hs-layout'>(</span><span class='hs-conid'>Map</span><span class='hs-layout'>)</span>
<a name="line-117"></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'>Map</span>                        <span class='hs-keyword'>as</span> <span class='hs-conid'>M</span>
<a name="line-118"></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'>fromMaybe</span><span class='hs-layout'>,</span> <span class='hs-varid'>mapMaybe</span><span class='hs-layout'>)</span>
<a name="line-119"></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'>Sequence</span>                   <span class='hs-keyword'>as</span> <span class='hs-conid'>Seq</span>
<a name="line-120"></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'>Set</span>                        <span class='hs-keyword'>as</span> <span class='hs-conid'>S</span>
<a name="line-121"></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'>ReadPrec</span> <span class='hs-layout'>(</span><span class='hs-varid'>prec</span><span class='hs-layout'>)</span>
<a name="line-122"></a><span class='hs-keyword'>import</span>           <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Read</span>                       <span class='hs-layout'>(</span><span class='hs-conid'>Lexeme</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ident</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>lexP</span><span class='hs-layout'>,</span> <span class='hs-varid'>parens</span><span class='hs-layout'>,</span>
<a name="line-123"></a>                                                  <span class='hs-varid'>readPrec</span><span class='hs-layout'>)</span>
<a name="line-124"></a>
<a name="line-125"></a><span class='hs-cpp'>#if !(MIN_VERSION_base (4,8,0))</span>
<a name="line-126"></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'>&lt;$&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>&lt;*&gt;</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-127"></a><span class='hs-cpp'>#endif</span>
<a name="line-128"></a>
<a name="line-129"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-130"></a>
<a name="line-131"></a><a name="DotGraph"></a><span class='hs-comment'>-- | A Dot graph that allows graph operations on it.</span>
<a name="line-132"></a><a name="DotGraph"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DG</span> <span class='hs-layout'>{</span> <span class='hs-varid'>strictGraph</span>   <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-133"></a>                     <span class='hs-layout'>,</span> <span class='hs-varid'>directedGraph</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-134"></a>                     <span class='hs-layout'>,</span> <span class='hs-varid'>graphAttrs</span>    <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>GlobAttrs</span>
<a name="line-135"></a>                     <span class='hs-layout'>,</span> <span class='hs-varid'>graphID</span>       <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span>
<a name="line-136"></a>                     <span class='hs-layout'>,</span> <span class='hs-varid'>clusters</span>      <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>GraphID</span> <span class='hs-conid'>ClusterInfo</span><span class='hs-layout'>)</span>
<a name="line-137"></a>                     <span class='hs-layout'>,</span> <span class='hs-varid'>values</span>        <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-138"></a>                     <span class='hs-layout'>}</span>
<a name="line-139"></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>
<a name="line-140"></a>
<a name="line-141"></a><a name="instance%20Show%20(DotGraph%20n)"></a><span class='hs-comment'>-- | It should be safe to substitute 'unsafeFromCanonical' for</span>
<a name="line-142"></a><a name="instance%20Show%20(DotGraph%20n)"></a><span class='hs-comment'>--   'fromCanonical' in the output of this.</span>
<a name="line-143"></a><a name="instance%20Show%20(DotGraph%20n)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Show</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-144"></a>  <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>d</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showParen</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>10</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-145"></a>                   <span class='hs-varid'>showString</span> <span class='hs-str'>"fromCanonical "</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shows</span> <span class='hs-layout'>(</span><span class='hs-varid'>toCanonical</span> <span class='hs-varid'>dg</span><span class='hs-layout'>)</span>
<a name="line-146"></a>
<a name="line-147"></a><a name="instance%20Read%20(DotGraph%20n)"></a><span class='hs-comment'>-- | If the graph is the output from 'show', then it should be safe to</span>
<a name="line-148"></a><a name="instance%20Read%20(DotGraph%20n)"></a><span class='hs-comment'>--   substitute 'unsafeFromCanonical' for 'fromCanonical'.</span>
<a name="line-149"></a><a name="instance%20Read%20(DotGraph%20n)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Read</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Read</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-150"></a>  <span class='hs-varid'>readPrec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parens</span> <span class='hs-varop'>.</span> <span class='hs-varid'>prec</span> <span class='hs-num'>10</span>
<a name="line-151"></a>             <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span> <span class='hs-conid'>Ident</span> <span class='hs-str'>"fromCanonical"</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>lexP</span>
<a name="line-152"></a>                  <span class='hs-varid'>cdg</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>readPrec</span>
<a name="line-153"></a>                  <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromCanonical</span> <span class='hs-varid'>cdg</span>
<a name="line-154"></a>
<a name="line-155"></a><a name="GlobAttrs"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>GlobAttrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GA</span> <span class='hs-layout'>{</span> <span class='hs-varid'>graphAs</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>SAttrs</span>
<a name="line-156"></a>                    <span class='hs-layout'>,</span> <span class='hs-varid'>nodeAs</span>  <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>SAttrs</span>
<a name="line-157"></a>                    <span class='hs-layout'>,</span> <span class='hs-varid'>edgeAs</span>  <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>SAttrs</span>
<a name="line-158"></a>                    <span class='hs-layout'>}</span>
<a name="line-159"></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-160"></a>
<a name="line-161"></a><a name="NodeInfo"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NI</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_inCluster</span>    <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span>
<a name="line-162"></a>                     <span class='hs-layout'>,</span> <span class='hs-sel'>_attributes</span>   <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Attributes</span>
<a name="line-163"></a>                     <span class='hs-layout'>,</span> <span class='hs-sel'>_predecessors</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-164"></a>                     <span class='hs-layout'>,</span> <span class='hs-sel'>_successors</span>   <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-165"></a>                     <span class='hs-layout'>}</span>
<a name="line-166"></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-167"></a>
<a name="line-168"></a><a name="ClusterInfo"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>ClusterInfo</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CI</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parentCluster</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span>
<a name="line-169"></a>                      <span class='hs-layout'>,</span> <span class='hs-varid'>clusterAttrs</span>  <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>GlobAttrs</span>
<a name="line-170"></a>                      <span class='hs-layout'>}</span>
<a name="line-171"></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-172"></a>
<a name="line-173"></a><a name="NodeMap"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-174"></a>
<a name="line-175"></a><a name="EdgeMap"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Attributes</span><span class='hs-keyglyph'>]</span>
<a name="line-176"></a>
<a name="line-177"></a><a name="Context"></a><span class='hs-comment'>-- | The decomposition of a node from a dot graph.  Any loops should</span>
<a name="line-178"></a><a name="Context"></a><span class='hs-comment'>--   be found in 'successors' rather than 'predecessors'.  Note also</span>
<a name="line-179"></a><a name="Context"></a><span class='hs-comment'>--   that these are created\/consumed as if for /directed/ graphs.</span>
<a name="line-180"></a><a name="Context"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Context</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cntxt</span> <span class='hs-layout'>{</span> <span class='hs-varid'>node</span>         <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span>
<a name="line-181"></a>                         <span class='hs-comment'>-- | The cluster this node can be found in;</span>
<a name="line-182"></a>                         <span class='hs-comment'>--   @Nothing@ indicates the node can be</span>
<a name="line-183"></a>                         <span class='hs-comment'>--   found in the root graph.</span>
<a name="line-184"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>inCluster</span>    <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span>
<a name="line-185"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>attributes</span>   <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Attributes</span>
<a name="line-186"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>predecessors</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Attributes</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-187"></a>                       <span class='hs-layout'>,</span> <span class='hs-varid'>successors</span>   <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Attributes</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-188"></a>                       <span class='hs-layout'>}</span>
<a name="line-189"></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-190"></a>
<a name="line-191"></a><a name="adjacent"></a><span class='hs-definition'>adjacent</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Context</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-192"></a><span class='hs-definition'>adjacent</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapU</span> <span class='hs-layout'>(</span><span class='hs-varop'>`DotEdge`</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>predecessors</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-193"></a>             <span class='hs-varop'>++</span> <span class='hs-varid'>mapU</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>successors</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-194"></a>  <span class='hs-keyword'>where</span>
<a name="line-195"></a>    <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>node</span> <span class='hs-varid'>c</span>
<a name="line-196"></a>    <span class='hs-varid'>mapU</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varop'>.</span> <span class='hs-varid'>uncurry</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="emptyGraph"></a><span class='hs-definition'>emptyGraph</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-199"></a><span class='hs-definition'>emptyGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DG</span> <span class='hs-layout'>{</span> <span class='hs-varid'>strictGraph</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-200"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>directedGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-201"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>graphID</span>       <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-202"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>graphAttrs</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emptyGA</span>
<a name="line-203"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>clusters</span>      <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-204"></a>                <span class='hs-layout'>,</span> <span class='hs-varid'>values</span>        <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-205"></a>                <span class='hs-layout'>}</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="emptyGA"></a><span class='hs-definition'>emptyGA</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlobAttrs</span>
<a name="line-208"></a><span class='hs-definition'>emptyGA</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GA</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-209"></a>
<a name="line-210"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-211"></a><span class='hs-comment'>-- Construction</span>
<a name="line-212"></a>
<a name="line-213"></a><a name="&"></a><span class='hs-comment'>-- | Merge the 'Context' into the graph.  Assumes that the specified</span>
<a name="line-214"></a><span class='hs-comment'>--   node is not in the graph but that all endpoints in the</span>
<a name="line-215"></a><span class='hs-comment'>--   'successors' and 'predecessors' (with the exception of loops)</span>
<a name="line-216"></a><span class='hs-comment'>--   are.  If the cluster is not present in the graph, then it will be</span>
<a name="line-217"></a><span class='hs-comment'>--   added with no attributes with a parent of the root graph.</span>
<a name="line-218"></a><span class='hs-comment'>--</span>
<a name="line-219"></a><span class='hs-comment'>--   Note that @&amp;@ and @'decompose'@ are /not/ quite inverses, as this</span>
<a name="line-220"></a><span class='hs-comment'>--   function will add in the cluster if it does not yet exist in the</span>
<a name="line-221"></a><span class='hs-comment'>--   graph, but 'decompose' will not delete it.</span>
<a name="line-222"></a><span class='hs-layout'>(</span><span class='hs-varop'>&amp;</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>Context</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-223"></a><span class='hs-layout'>(</span><span class='hs-conid'>Cntxt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span> <span class='hs-varop'>&amp;</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withValues</span> <span class='hs-varid'>merge</span> <span class='hs-varid'>dg'</span>
<a name="line-224"></a>  <span class='hs-keyword'>where</span>
<a name="line-225"></a>    <span class='hs-varid'>ps'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toMap</span> <span class='hs-varid'>ps</span>
<a name="line-226"></a>    <span class='hs-varid'>ps''</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ps'</span>
<a name="line-227"></a>    <span class='hs-varid'>ss'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toMap</span> <span class='hs-varid'>ss</span>
<a name="line-228"></a>    <span class='hs-varid'>ss''</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ss'</span>
<a name="line-229"></a>
<a name="line-230"></a>    <span class='hs-varid'>dg'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addNode</span> <span class='hs-varid'>n</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>dg</span>
<a name="line-231"></a>
<a name="line-232"></a>    <span class='hs-varid'>merge</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addSucc</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ps''</span> <span class='hs-varop'>.</span> <span class='hs-varid'>addPred</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ss''</span>
<a name="line-233"></a>            <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>ni</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_predecessors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ps'</span><span class='hs-layout'>,</span> <span class='hs-sel'>_successors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ss'</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span>
<a name="line-234"></a>
<a name="line-235"></a><span class='hs-keyword'>infixr</span> <span class='hs-num'>5</span> <span class='hs-varop'>&amp;</span>
<a name="line-236"></a>
<a name="line-237"></a><a name="composeList"></a><span class='hs-comment'>-- | Recursively merge the list of contexts.</span>
<a name="line-238"></a><span class='hs-comment'>--</span>
<a name="line-239"></a><span class='hs-comment'>--   &gt; composeList = foldr (&amp;) emptyGraph</span>
<a name="line-240"></a><span class='hs-definition'>composeList</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Context</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-241"></a><span class='hs-definition'>composeList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-varop'>&amp;</span><span class='hs-layout'>)</span> <span class='hs-varid'>emptyGraph</span>
<a name="line-242"></a>
<a name="line-243"></a><a name="addSucc"></a><span class='hs-definition'>addSucc</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-244"></a><span class='hs-definition'>addSucc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addPS</span> <span class='hs-varid'>niSucc</span>
<a name="line-245"></a>
<a name="line-246"></a><a name="addPred"></a><span class='hs-definition'>addPred</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-247"></a><span class='hs-definition'>addPred</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addPS</span> <span class='hs-varid'>niPred</span>
<a name="line-248"></a>
<a name="line-249"></a><a name="addPS"></a><span class='hs-definition'>addPS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-250"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-251"></a><span class='hs-definition'>addPS</span> <span class='hs-varid'>fni</span> <span class='hs-varid'>t</span> <span class='hs-varid'>fas</span> <span class='hs-varid'>nm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>t</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>foldl'</span> <span class='hs-varid'>addSucc'</span> <span class='hs-varid'>nm</span> <span class='hs-varid'>fas'</span>
<a name="line-252"></a>  <span class='hs-keyword'>where</span>
<a name="line-253"></a>    <span class='hs-varid'>fas'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMap</span> <span class='hs-varid'>fas</span>
<a name="line-254"></a>
<a name="line-255"></a>    <span class='hs-varid'>addSucc'</span> <span class='hs-varid'>nm'</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span><span class='hs-layout'>,</span><span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>`seq`</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>alter</span> <span class='hs-layout'>(</span><span class='hs-varid'>addS</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-varid'>nm'</span>
<a name="line-256"></a>
<a name="line-257"></a>    <span class='hs-varid'>addS</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span>
<a name="line-258"></a>              <span class='hs-varop'>.</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>error</span> <span class='hs-str'>"Node not in the graph!"</span><span class='hs-layout'>)</span>
<a name="line-259"></a>                      <span class='hs-layout'>(</span><span class='hs-varid'>fni</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insertWith</span> <span class='hs-layout'>(</span><span class='hs-varop'>++</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>[</span><span class='hs-keyword'>as</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-260"></a>
<a name="line-261"></a><a name="addNode"></a><span class='hs-comment'>-- | Add a node to the current graph.  Throws an error if the node</span>
<a name="line-262"></a><span class='hs-comment'>--   already exists in the graph.</span>
<a name="line-263"></a><span class='hs-comment'>--</span>
<a name="line-264"></a><span class='hs-comment'>--   If the specified cluster does not yet exist in the graph, then it</span>
<a name="line-265"></a><span class='hs-comment'>--   will be added (as a sub-graph of the overall graph and no</span>
<a name="line-266"></a><span class='hs-comment'>--   attributes).</span>
<a name="line-267"></a><span class='hs-definition'>addNode</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-268"></a>           <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span>
<a name="line-269"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span> <span class='hs-comment'>-- ^ The cluster the node can be found in</span>
<a name="line-270"></a>                            <span class='hs-comment'>--   (@Nothing@ refers to the root graph).</span>
<a name="line-271"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Attributes</span>
<a name="line-272"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-273"></a>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-274"></a><span class='hs-definition'>addNode</span> <span class='hs-varid'>n</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>dg</span>
<a name="line-275"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>member</span><span class='hs-varop'>`</span> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Node already exists in the graph"</span>
<a name="line-276"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>       <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addEmptyCluster</span> <span class='hs-varid'>mc</span>
<a name="line-277"></a>                      <span class='hs-varop'>$</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>values</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ns'</span> <span class='hs-layout'>}</span>
<a name="line-278"></a>  <span class='hs-keyword'>where</span>
<a name="line-279"></a>    <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-280"></a>    <span class='hs-varid'>ns'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>NI</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span> <span class='hs-varid'>ns</span>
<a name="line-281"></a>
<a name="line-282"></a><a name="addDotNode"></a><span class='hs-comment'>-- | A variant of 'addNode' that takes in a DotNode (not in a</span>
<a name="line-283"></a><span class='hs-comment'>--   cluster).</span>
<a name="line-284"></a><span class='hs-definition'>addDotNode</span>                <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotNode</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-285"></a><span class='hs-definition'>addDotNode</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotNode</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addNode</span> <span class='hs-varid'>n</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>as</span>
<a name="line-286"></a>
<a name="line-287"></a><a name="addEdge"></a><span class='hs-comment'>-- | Add the specified edge to the graph; assumes both node values are</span>
<a name="line-288"></a><span class='hs-comment'>--   already present in the graph.  If the graph is undirected then</span>
<a name="line-289"></a><span class='hs-comment'>--   the order of nodes doesn't matter.</span>
<a name="line-290"></a><span class='hs-definition'>addEdge</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Attributes</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-291"></a><span class='hs-definition'>addEdge</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withValues</span> <span class='hs-varid'>merge</span>
<a name="line-292"></a>  <span class='hs-keyword'>where</span>
<a name="line-293"></a>    <span class='hs-comment'>-- Add the edge assuming it's directed; let the getter functions</span>
<a name="line-294"></a>    <span class='hs-comment'>-- be smart regarding directedness.</span>
<a name="line-295"></a>    <span class='hs-varid'>merge</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addPred</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>[</span><span class='hs-keyword'>as</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>addSucc</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>[</span><span class='hs-keyword'>as</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-296"></a>
<a name="line-297"></a><a name="addDotEdge"></a><span class='hs-comment'>-- | A variant of 'addEdge' that takes a 'DotEdge' value.</span>
<a name="line-298"></a><span class='hs-definition'>addDotEdge</span>                  <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-299"></a><span class='hs-definition'>addDotEdge</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addEdge</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyword'>as</span>
<a name="line-300"></a>
<a name="line-301"></a><a name="addCluster"></a><span class='hs-comment'>-- | Add a new cluster to the graph; throws an error if the cluster</span>
<a name="line-302"></a><span class='hs-comment'>--   already exists.  Assumes that it doesn't match the identifier of</span>
<a name="line-303"></a><span class='hs-comment'>--   the overall graph.  If the parent cluster doesn't already exist</span>
<a name="line-304"></a><span class='hs-comment'>--   in the graph then it will be added.</span>
<a name="line-305"></a><span class='hs-definition'>addCluster</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GraphID</span>          <span class='hs-comment'>-- ^ The identifier for this cluster.</span>
<a name="line-306"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span> <span class='hs-comment'>-- ^ The parent of this cluster</span>
<a name="line-307"></a>                               <span class='hs-comment'>--   (@Nothing@ refers to the root</span>
<a name="line-308"></a>                               <span class='hs-comment'>--   graph)</span>
<a name="line-309"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span>
<a name="line-310"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-311"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-312"></a><span class='hs-definition'>addCluster</span> <span class='hs-varid'>c</span> <span class='hs-varid'>mp</span> <span class='hs-varid'>gas</span> <span class='hs-varid'>dg</span>
<a name="line-313"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>c</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>member</span><span class='hs-varop'>`</span> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Cluster already exists in the graph"</span>
<a name="line-314"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>       <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addEmptyCluster</span> <span class='hs-varid'>mp</span>
<a name="line-315"></a>                      <span class='hs-varop'>$</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>clusters</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ci</span> <span class='hs-varid'>cs</span> <span class='hs-layout'>}</span>
<a name="line-316"></a>  <span class='hs-keyword'>where</span>
<a name="line-317"></a>    <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-318"></a>    <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CI</span> <span class='hs-varid'>mp</span> <span class='hs-varop'>$</span> <span class='hs-varid'>toGlobAttrs</span> <span class='hs-varid'>gas</span>
<a name="line-319"></a>
<a name="line-320"></a><a name="addEmptyCluster"></a><span class='hs-comment'>-- Used to make sure that the parent cluster exists</span>
<a name="line-321"></a><span class='hs-definition'>addEmptyCluster</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-322"></a><span class='hs-definition'>addEmptyCluster</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-varid'>id</span> <span class='hs-layout'>(</span><span class='hs-varid'>withClusters</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varop'>`dontReplace`</span> <span class='hs-varid'>defCI</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-323"></a>  <span class='hs-keyword'>where</span>
<a name="line-324"></a>    <span class='hs-varid'>dontReplace</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insertWith</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span>
<a name="line-325"></a>    <span class='hs-varid'>defCI</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CI</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>emptyGA</span>
<a name="line-326"></a>
<a name="line-327"></a><a name="setClusterParent"></a><span class='hs-comment'>-- | Specify the parent of the cluster; adds both in if not already present.</span>
<a name="line-328"></a><span class='hs-definition'>setClusterParent</span>     <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-329"></a><span class='hs-definition'>setClusterParent</span> <span class='hs-varid'>c</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withClusters</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-varid'>setP</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>addCs</span>
<a name="line-330"></a>  <span class='hs-keyword'>where</span>
<a name="line-331"></a>    <span class='hs-varid'>addCs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>addEmptyCluster</span> <span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-varid'>addEmptyCluster</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-332"></a>    <span class='hs-varid'>setP</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ci</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parentCluster</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <span class='hs-layout'>}</span>
<a name="line-333"></a>
<a name="line-334"></a><a name="setClusterAttributes"></a><span class='hs-comment'>-- | Specify the attributes of the cluster; adds it if not already</span>
<a name="line-335"></a><span class='hs-comment'>--   present.</span>
<a name="line-336"></a><span class='hs-definition'>setClusterAttributes</span>       <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span>
<a name="line-337"></a>                              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-338"></a><span class='hs-definition'>setClusterAttributes</span> <span class='hs-varid'>c</span> <span class='hs-varid'>gas</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withClusters</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-varid'>setAs</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-339"></a>                             <span class='hs-varop'>.</span> <span class='hs-varid'>addEmptyCluster</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-340"></a>  <span class='hs-keyword'>where</span>
<a name="line-341"></a>    <span class='hs-varid'>setAs</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ci</span> <span class='hs-layout'>{</span> <span class='hs-varid'>clusterAttrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toGlobAttrs</span> <span class='hs-varid'>gas</span> <span class='hs-layout'>}</span>
<a name="line-342"></a>
<a name="line-343"></a><a name="mkGraph"></a><span class='hs-comment'>-- | Create a graph with no clusters.</span>
<a name="line-344"></a><span class='hs-definition'>mkGraph</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotNode</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-345"></a><span class='hs-definition'>mkGraph</span> <span class='hs-varid'>ns</span> <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>flip</span> <span class='hs-layout'>(</span><span class='hs-varid'>foldl'</span> <span class='hs-varop'>$</span> <span class='hs-varid'>flip</span> <span class='hs-varid'>addDotEdge</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span>
<a name="line-346"></a>                <span class='hs-varop'>$</span> <span class='hs-varid'>foldl'</span> <span class='hs-layout'>(</span><span class='hs-varid'>flip</span> <span class='hs-varid'>addDotNode</span><span class='hs-layout'>)</span> <span class='hs-varid'>emptyGraph</span> <span class='hs-varid'>ns</span>
<a name="line-347"></a>
<a name="line-348"></a><a name="toCanonical"></a><span class='hs-comment'>-- | Convert this DotGraph into canonical form.  All edges are found</span>
<a name="line-349"></a><span class='hs-comment'>--   in the outer graph rather than in clusters.</span>
<a name="line-350"></a><span class='hs-definition'>toCanonical</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-351"></a><span class='hs-definition'>toCanonical</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>DotGraph</span> <span class='hs-layout'>{</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>strictGraph</span>     <span class='hs-keyglyph'>=</span> <span class='hs-varid'>strictGraph</span> <span class='hs-varid'>dg</span>
<a name="line-352"></a>                            <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>directedGraph</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>directedGraph</span> <span class='hs-varid'>dg</span>
<a name="line-353"></a>                            <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>graphID</span>         <span class='hs-keyglyph'>=</span> <span class='hs-varid'>graphID</span> <span class='hs-varid'>dg</span>
<a name="line-354"></a>                            <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>graphStatements</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>stmts</span>
<a name="line-355"></a>                            <span class='hs-layout'>}</span>
<a name="line-356"></a>  <span class='hs-keyword'>where</span>
<a name="line-357"></a>    <span class='hs-varid'>stmts</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>DotStmts</span> <span class='hs-layout'>{</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>attrStmts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromGlobAttrs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>graphAttrs</span> <span class='hs-varid'>dg</span>
<a name="line-358"></a>                       <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>subGraphs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span>
<a name="line-359"></a>                       <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>nodeStmts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ns</span>
<a name="line-360"></a>                       <span class='hs-layout'>,</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>edgeStmts</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getEdgeInfo</span> <span class='hs-conid'>False</span> <span class='hs-varid'>dg</span>
<a name="line-361"></a>                       <span class='hs-layout'>}</span>
<a name="line-362"></a>
<a name="line-363"></a>    <span class='hs-varid'>cls</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-364"></a>    <span class='hs-varid'>pM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusterPath'</span> <span class='hs-varid'>dg</span>
<a name="line-365"></a>
<a name="line-366"></a>    <span class='hs-varid'>clustAs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromGlobAttrs</span> <span class='hs-varop'>.</span> <span class='hs-varid'>clusterAttrs</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span><span class='hs-varid'>cls</span><span class='hs-layout'>)</span>
<a name="line-367"></a>
<a name="line-368"></a>    <span class='hs-varid'>lns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-varid'>ni</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-sel'>_inCluster</span> <span class='hs-varid'>ni</span><span class='hs-layout'>,</span> <span class='hs-sel'>_attributes</span> <span class='hs-varid'>ni</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-369"></a>          <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>assocs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-370"></a>
<a name="line-371"></a>    <span class='hs-layout'>(</span><span class='hs-varid'>cs</span><span class='hs-layout'>,</span><span class='hs-varid'>ns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clustersToNodes</span> <span class='hs-varid'>pathOf</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span> <span class='hs-varid'>id</span> <span class='hs-varid'>clustAs</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>lns</span>
<a name="line-372"></a>
<a name="line-373"></a>    <span class='hs-varid'>pathOf</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-keyword'>as</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pathFrom</span> <span class='hs-varid'>c</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span><span class='hs-keyword'>as</span><span class='hs-layout'>)</span>
<a name="line-374"></a>    <span class='hs-varid'>pathFrom</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ln</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-conid'>C</span> <span class='hs-layout'>(</span><span class='hs-conid'>N</span> <span class='hs-varid'>ln</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span><span class='hs-varid'>pM</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>c</span>
<a name="line-375"></a>
<a name="line-376"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-377"></a><span class='hs-comment'>-- Deconstruction</span>
<a name="line-378"></a>
<a name="line-379"></a><a name="decompose"></a><span class='hs-comment'>-- | A partial inverse of @'&amp;'@, in that if a node exists in a graph</span>
<a name="line-380"></a><span class='hs-comment'>--   then it will be decomposed, but will not remove the cluster that</span>
<a name="line-381"></a><span class='hs-comment'>--   it was in even if it was the only node in that cluster.</span>
<a name="line-382"></a><span class='hs-definition'>decompose</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Context</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-383"></a><span class='hs-definition'>decompose</span> <span class='hs-varid'>n</span> <span class='hs-varid'>dg</span>
<a name="line-384"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>notMember</span><span class='hs-varop'>`</span> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-385"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</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'>dg'</span><span class='hs-layout'>)</span>
<a name="line-386"></a>  <span class='hs-keyword'>where</span>
<a name="line-387"></a>    <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-388"></a>    <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>NI</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>updateLookupWithKey</span> <span class='hs-layout'>(</span><span class='hs-varid'>const</span> <span class='hs-varop'>.</span> <span class='hs-varid'>const</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ns</span>
<a name="line-389"></a>
<a name="line-390"></a>    <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Cntxt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>mc</span> <span class='hs-keyword'>as</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMap</span> <span class='hs-varop'>$</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span><span class='hs-varop'>`</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromMap</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span>
<a name="line-391"></a>    <span class='hs-varid'>dg'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>values</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delSucc</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>.</span> <span class='hs-varid'>delPred</span> <span class='hs-varid'>n</span> <span class='hs-varid'>ss</span> <span class='hs-varop'>$</span> <span class='hs-varid'>ns'</span> <span class='hs-layout'>}</span>
<a name="line-392"></a>
<a name="line-393"></a><a name="decomposeAny"></a><span class='hs-comment'>-- | As with 'decompose', but do not specify /which/ node to</span>
<a name="line-394"></a><span class='hs-comment'>--   decompose.</span>
<a name="line-395"></a><span class='hs-definition'>decomposeAny</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Context</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-396"></a><span class='hs-definition'>decomposeAny</span> <span class='hs-varid'>dg</span>
<a name="line-397"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>isEmpty</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-398"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decompose</span> <span class='hs-layout'>(</span><span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>findMin</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span><span class='hs-layout'>)</span> <span class='hs-varid'>dg</span>
<a name="line-399"></a>
<a name="line-400"></a><a name="decomposeList"></a><span class='hs-comment'>-- | Recursively decompose the Dot graph into a list of contexts such</span>
<a name="line-401"></a><span class='hs-comment'>--   that if @(c:cs) = decomposeList dg@, then @dg = c &amp; 'composeList' cs@.</span>
<a name="line-402"></a><span class='hs-comment'>--</span>
<a name="line-403"></a><span class='hs-comment'>--   Note that all global attributes are lost, so this is /not/</span>
<a name="line-404"></a><span class='hs-comment'>--   suitable for representing a Dot graph on its own.</span>
<a name="line-405"></a><span class='hs-definition'>decomposeList</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Context</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-406"></a><span class='hs-definition'>decomposeList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unfoldr</span> <span class='hs-varid'>decomposeAny</span>
<a name="line-407"></a>
<a name="line-408"></a><a name="delSucc"></a><span class='hs-definition'>delSucc</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-409"></a><span class='hs-definition'>delSucc</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delPS</span> <span class='hs-varid'>niSucc</span>
<a name="line-410"></a>
<a name="line-411"></a><a name="delPred"></a><span class='hs-definition'>delPred</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-412"></a><span class='hs-definition'>delPred</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delPS</span> <span class='hs-varid'>niPred</span>
<a name="line-413"></a>
<a name="line-414"></a><a name="delPS"></a><span class='hs-comment'>-- Only takes in EdgeMap rather than [n] to make it easier to call</span>
<a name="line-415"></a><span class='hs-comment'>-- from decompose</span>
<a name="line-416"></a><span class='hs-definition'>delPS</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-417"></a>         <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span>
<a name="line-418"></a><span class='hs-definition'>delPS</span> <span class='hs-varid'>fni</span> <span class='hs-varid'>t</span> <span class='hs-varid'>fm</span> <span class='hs-varid'>nm</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldl'</span> <span class='hs-varid'>delE</span> <span class='hs-varid'>nm</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>keys</span> <span class='hs-varid'>fm</span>
<a name="line-419"></a>  <span class='hs-keyword'>where</span>
<a name="line-420"></a>    <span class='hs-varid'>delE</span> <span class='hs-varid'>nm'</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-varid'>fni</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span> <span class='hs-varid'>nm'</span>
<a name="line-421"></a>
<a name="line-422"></a><a name="deleteNode"></a><span class='hs-comment'>-- | Delete the specified node from the graph; returns the original</span>
<a name="line-423"></a><span class='hs-comment'>--   graph if that node isn't present.</span>
<a name="line-424"></a><span class='hs-definition'>deleteNode</span>      <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-425"></a><span class='hs-definition'>deleteNode</span> <span class='hs-varid'>n</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>$</span> <span class='hs-varid'>decompose</span> <span class='hs-varid'>n</span> <span class='hs-varid'>dg</span>
<a name="line-426"></a>
<a name="line-427"></a><a name="deleteAllEdges"></a><span class='hs-comment'>-- | Delete all edges between the two nodes; returns the original</span>
<a name="line-428"></a><span class='hs-comment'>--   graph if there are no edges.</span>
<a name="line-429"></a><span class='hs-definition'>deleteAllEdges</span>          <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-430"></a><span class='hs-definition'>deleteAllEdges</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withValues</span> <span class='hs-layout'>(</span><span class='hs-varid'>delAE</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-varop'>.</span> <span class='hs-varid'>delAE</span> <span class='hs-varid'>n2</span> <span class='hs-varid'>n1</span><span class='hs-layout'>)</span>
<a name="line-431"></a>  <span class='hs-keyword'>where</span>
<a name="line-432"></a>    <span class='hs-varid'>delAE</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delSucc</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t'</span> <span class='hs-varop'>.</span> <span class='hs-varid'>delPred</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t'</span>
<a name="line-433"></a>      <span class='hs-keyword'>where</span>
<a name="line-434"></a>        <span class='hs-varid'>t'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>t</span> <span class='hs-conid'>[]</span>
<a name="line-435"></a>
<a name="line-436"></a><a name="deleteEdge"></a><span class='hs-comment'>-- | Deletes the specified edge from the DotGraph (note: for unordered</span>
<a name="line-437"></a><span class='hs-comment'>--   graphs both orientations are considered).</span>
<a name="line-438"></a><span class='hs-definition'>deleteEdge</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Attributes</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-439"></a><span class='hs-definition'>deleteEdge</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withValues</span> <span class='hs-varid'>delEs</span> <span class='hs-varid'>dg</span>
<a name="line-440"></a>  <span class='hs-keyword'>where</span>
<a name="line-441"></a>    <span class='hs-varid'>delE</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-varid'>niSucc</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-varid'>delete</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span>
<a name="line-442"></a>               <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-varid'>niPred</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>adjust</span> <span class='hs-layout'>(</span><span class='hs-varid'>delete</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varid'>t</span>
<a name="line-443"></a>
<a name="line-444"></a>    <span class='hs-varid'>delEs</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>directedGraph</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delE</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span>
<a name="line-445"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delE</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-varop'>.</span> <span class='hs-varid'>delE</span> <span class='hs-varid'>n2</span> <span class='hs-varid'>n1</span>
<a name="line-446"></a>
<a name="line-447"></a><a name="deleteDotEdge"></a><span class='hs-comment'>-- | As with 'deleteEdge' but takes a 'DotEdge' rather than individual</span>
<a name="line-448"></a><span class='hs-comment'>--   values.</span>
<a name="line-449"></a><span class='hs-definition'>deleteDotEdge</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-450"></a><span class='hs-definition'>deleteDotEdge</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-keyword'>as</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>deleteEdge</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>n2</span> <span class='hs-keyword'>as</span>
<a name="line-451"></a>
<a name="line-452"></a><a name="deleteCluster"></a><span class='hs-comment'>-- | Delete the specified cluster, and makes any clusters or nodes</span>
<a name="line-453"></a><span class='hs-comment'>--   within it be in its root cluster (or the overall graph if</span>
<a name="line-454"></a><span class='hs-comment'>--   required).</span>
<a name="line-455"></a><span class='hs-definition'>deleteCluster</span>      <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-456"></a><span class='hs-definition'>deleteCluster</span> <span class='hs-varid'>c</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withValues</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>adjNode</span><span class='hs-layout'>)</span>
<a name="line-457"></a>                     <span class='hs-varop'>.</span> <span class='hs-varid'>withClusters</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>adjCluster</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-458"></a>                     <span class='hs-varop'>$</span> <span class='hs-varid'>dg</span>
<a name="line-459"></a>  <span class='hs-keyword'>where</span>
<a name="line-460"></a>    <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>c</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-461"></a>
<a name="line-462"></a>    <span class='hs-varid'>adjParent</span> <span class='hs-varid'>p'</span>
<a name="line-463"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>p'</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-464"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p'</span>
<a name="line-465"></a>
<a name="line-466"></a>    <span class='hs-varid'>adjNode</span> <span class='hs-varid'>ni</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_inCluster</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>adjParent</span> <span class='hs-varop'>$</span> <span class='hs-sel'>_inCluster</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>}</span>
<a name="line-467"></a>
<a name="line-468"></a>    <span class='hs-varid'>adjCluster</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ci</span> <span class='hs-layout'>{</span> <span class='hs-varid'>parentCluster</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>adjParent</span> <span class='hs-varop'>$</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varid'>ci</span> <span class='hs-layout'>}</span>
<a name="line-469"></a>
<a name="line-470"></a><a name="removeEmptyClusters"></a><span class='hs-comment'>-- | Remove clusters with no sub-clusters and no nodes within them.</span>
<a name="line-471"></a><span class='hs-definition'>removeEmptyClusters</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-472"></a><span class='hs-definition'>removeEmptyClusters</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>clusters</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cM'</span> <span class='hs-layout'>}</span>
<a name="line-473"></a>  <span class='hs-keyword'>where</span>
<a name="line-474"></a>    <span class='hs-varid'>cM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-475"></a>    <span class='hs-varid'>cM'</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>cM</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>difference</span><span class='hs-varop'>`</span> <span class='hs-varid'>invCs</span><span class='hs-layout'>)</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>difference</span><span class='hs-varop'>`</span> <span class='hs-varid'>invNs</span>
<a name="line-476"></a>
<a name="line-477"></a>    <span class='hs-varid'>invCs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>usedClustsIn</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varid'>cM</span>
<a name="line-478"></a>    <span class='hs-varid'>invNs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>usedClustsIn</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-sel'>_inCluster</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-479"></a>
<a name="line-480"></a>    <span class='hs-varid'>usedClustsIn</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromAscList</span>
<a name="line-481"></a>                   <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>(,)</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>.</span> <span class='hs-varid'>head</span> <span class='hs-varop'>&lt;*&gt;</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span><span class='hs-layout'>)</span>
<a name="line-482"></a>                   <span class='hs-varop'>.</span> <span class='hs-varid'>groupSortBy</span> <span class='hs-varid'>fst</span>
<a name="line-483"></a>                   <span class='hs-varop'>.</span> <span class='hs-varid'>mapMaybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varop'>.</span> <span class='hs-varid'>flip</span> <span class='hs-conid'>(,)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-484"></a>                   <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>assocs</span>
<a name="line-485"></a>
<a name="line-486"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-487"></a><span class='hs-comment'>-- Information</span>
<a name="line-488"></a>
<a name="line-489"></a><a name="isEmpty"></a><span class='hs-comment'>-- | Does this graph have any nodes?</span>
<a name="line-490"></a><span class='hs-definition'>isEmpty</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-491"></a><span class='hs-definition'>isEmpty</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varop'>.</span> <span class='hs-varid'>values</span>
<a name="line-492"></a>
<a name="line-493"></a><a name="hasClusters"></a><span class='hs-comment'>-- | Does this graph have any clusters?</span>
<a name="line-494"></a><span class='hs-definition'>hasClusters</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-495"></a><span class='hs-definition'>hasClusters</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varop'>.</span> <span class='hs-varid'>clusters</span>
<a name="line-496"></a>
<a name="line-497"></a><a name="isEmptyGraph"></a><span class='hs-comment'>-- | Determine if this graph has nodes or clusters.</span>
<a name="line-498"></a><span class='hs-definition'>isEmptyGraph</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Bool</span>
<a name="line-499"></a><span class='hs-definition'>isEmptyGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftA2</span> <span class='hs-layout'>(</span><span class='hs-varop'>&amp;&amp;</span><span class='hs-layout'>)</span> <span class='hs-varid'>isEmpty</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>hasClusters</span><span class='hs-layout'>)</span>
<a name="line-500"></a>
<a name="line-501"></a><a name="graphAttributes"></a><span class='hs-definition'>graphAttributes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span>
<a name="line-502"></a><span class='hs-definition'>graphAttributes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromGlobAttrs</span> <span class='hs-varop'>.</span> <span class='hs-varid'>graphAttrs</span>
<a name="line-503"></a>
<a name="line-504"></a><a name="foundInCluster"></a><span class='hs-comment'>-- | Return the ID for the cluster the node is in.</span>
<a name="line-505"></a><span class='hs-definition'>foundInCluster</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span>
<a name="line-506"></a><span class='hs-definition'>foundInCluster</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_inCluster</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>n</span>
<a name="line-507"></a>
<a name="line-508"></a><a name="attributesOf"></a><span class='hs-comment'>-- | Return the attributes for the node.</span>
<a name="line-509"></a><span class='hs-definition'>attributesOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Attributes</span>
<a name="line-510"></a><span class='hs-definition'>attributesOf</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_attributes</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>n</span>
<a name="line-511"></a>
<a name="line-512"></a><a name="predecessorsOf"></a><span class='hs-comment'>-- | Predecessor edges for the specified node.  For undirected graphs</span>
<a name="line-513"></a><span class='hs-comment'>--   equivalent to 'adjacentTo'.</span>
<a name="line-514"></a><span class='hs-definition'>predecessorsOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-515"></a><span class='hs-definition'>predecessorsOf</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>t</span>
<a name="line-516"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>directedGraph</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emToDE</span> <span class='hs-layout'>(</span><span class='hs-varop'>`DotEdge`</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span>
<a name="line-517"></a>                       <span class='hs-varop'>.</span> <span class='hs-sel'>_predecessors</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>t</span>
<a name="line-518"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>adjacentTo</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>t</span>
<a name="line-519"></a>
<a name="line-520"></a><a name="successorsOf"></a><span class='hs-comment'>-- | Successor edges for the specified node.  For undirected graphs</span>
<a name="line-521"></a><span class='hs-comment'>--   equivalent to 'adjacentTo'.</span>
<a name="line-522"></a><span class='hs-definition'>successorsOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-523"></a><span class='hs-definition'>successorsOf</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>f</span>
<a name="line-524"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>directedGraph</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emToDE</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-525"></a>                       <span class='hs-varop'>.</span> <span class='hs-sel'>_successors</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>f</span>
<a name="line-526"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>adjacentTo</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>f</span>
<a name="line-527"></a>
<a name="line-528"></a><a name="adjacentTo"></a><span class='hs-comment'>-- | All edges involving this node.</span>
<a name="line-529"></a><span class='hs-definition'>adjacentTo</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-530"></a><span class='hs-definition'>adjacentTo</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sucs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>preds</span>
<a name="line-531"></a>  <span class='hs-keyword'>where</span>
<a name="line-532"></a>    <span class='hs-varid'>ni</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>n</span>
<a name="line-533"></a>    <span class='hs-varid'>sucs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emToDE</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-sel'>_successors</span> <span class='hs-varid'>ni</span>
<a name="line-534"></a>    <span class='hs-varid'>preds</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>emToDE</span> <span class='hs-layout'>(</span><span class='hs-varop'>`DotEdge`</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span><span class='hs-varop'>`</span> <span class='hs-sel'>_predecessors</span> <span class='hs-varid'>ni</span>
<a name="line-535"></a>
<a name="line-536"></a><a name="emToDE"></a><span class='hs-definition'>emToDE</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Attributes</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-537"></a><span class='hs-definition'>emToDE</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromMap</span>
<a name="line-538"></a>
<a name="line-539"></a><a name="parentOf"></a><span class='hs-comment'>-- | Which cluster (or the root graph) is this cluster in?</span>
<a name="line-540"></a><span class='hs-definition'>parentOf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span>
<a name="line-541"></a><span class='hs-definition'>parentOf</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varop'>$</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>c</span>
<a name="line-542"></a>
<a name="line-543"></a><a name="clusterAttributes"></a><span class='hs-definition'>clusterAttributes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>GraphID</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span>
<a name="line-544"></a><span class='hs-definition'>clusterAttributes</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromGlobAttrs</span> <span class='hs-varop'>.</span> <span class='hs-varid'>clusterAttrs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span> <span class='hs-conid'>M</span><span class='hs-varop'>.!</span> <span class='hs-varid'>c</span>
<a name="line-545"></a>
<a name="line-546"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-547"></a><span class='hs-comment'>-- For DotRepr instance</span>
<a name="line-548"></a>
<a name="line-549"></a><a name="instance%20DotRepr%20DotGraph%20n"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>DotRepr</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>where</span>
<a name="line-550"></a>  <span class='hs-varid'>fromCanonical</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromDotRepr</span>
<a name="line-551"></a>
<a name="line-552"></a>  <span class='hs-varid'>getID</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>graphID</span>
<a name="line-553"></a>
<a name="line-554"></a>  <span class='hs-varid'>setID</span> <span class='hs-varid'>i</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-layout'>{</span> <span class='hs-varid'>graphID</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>i</span> <span class='hs-layout'>}</span>
<a name="line-555"></a>
<a name="line-556"></a>  <span class='hs-varid'>graphIsDirected</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>directedGraph</span>
<a name="line-557"></a>
<a name="line-558"></a>  <span class='hs-varid'>setIsDirected</span> <span class='hs-varid'>d</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-layout'>{</span> <span class='hs-varid'>directedGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d</span> <span class='hs-layout'>}</span>
<a name="line-559"></a>
<a name="line-560"></a>  <span class='hs-varid'>graphIsStrict</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>strictGraph</span>
<a name="line-561"></a>
<a name="line-562"></a>  <span class='hs-varid'>setStrictness</span> <span class='hs-varid'>s</span> <span class='hs-varid'>g</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>g</span> <span class='hs-layout'>{</span> <span class='hs-varid'>strictGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <span class='hs-layout'>}</span>
<a name="line-563"></a>
<a name="line-564"></a>  <span class='hs-varid'>mapDotGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mapNs</span>
<a name="line-565"></a>
<a name="line-566"></a>  <span class='hs-varid'>graphStructureInformation</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getGraphInfo</span>
<a name="line-567"></a>
<a name="line-568"></a>  <span class='hs-varid'>nodeInformation</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getNodeInfo</span>
<a name="line-569"></a>
<a name="line-570"></a>  <span class='hs-varid'>edgeInformation</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>getEdgeInfo</span>
<a name="line-571"></a>
<a name="line-572"></a>  <span class='hs-varid'>unAnonymise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span> <span class='hs-comment'>-- No anonymous clusters!</span>
<a name="line-573"></a>
<a name="line-574"></a><a name="instance%20G.FromGeneralisedDot%20DotGraph%20n"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>G</span><span class='hs-varop'>.</span><span class='hs-conid'>FromGeneralisedDot</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>where</span>
<a name="line-575"></a>  <span class='hs-varid'>fromGeneralised</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromDotRepr</span>
<a name="line-576"></a>
<a name="line-577"></a><a name="instance%20PrintDotRepr%20DotGraph%20n"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrintDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>PrintDotRepr</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-578"></a><a name="instance%20ParseDotRepr%20DotGraph%20n"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>ParseDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ParseDotRepr</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-579"></a><a name="instance%20PPDotRepr%20DotGraph%20n"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrintDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>ParseDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>PPDotRepr</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-580"></a>
<a name="line-581"></a><a name="instance%20PrintDot%20(DotGraph%20n)"></a><span class='hs-comment'>-- | Uses the PrintDot instance for canonical 'C.DotGraph's.</span>
<a name="line-582"></a><a name="instance%20PrintDot%20(DotGraph%20n)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>PrintDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>PrintDot</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-583"></a>  <span class='hs-varid'>unqtDot</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unqtDot</span> <span class='hs-varop'>.</span> <span class='hs-varid'>toCanonical</span>
<a name="line-584"></a>
<a name="line-585"></a><a name="instance%20ParseDot%20(DotGraph%20n)"></a><span class='hs-comment'>-- | Uses the ParseDot instance for generalised 'G.DotGraph's.</span>
<a name="line-586"></a><a name="instance%20ParseDot%20(DotGraph%20n)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>ParseDot</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>ParseDot</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-587"></a>  <span class='hs-varid'>parseUnqt</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromGDot</span> <span class='hs-varop'>&lt;$&gt;</span> <span class='hs-varid'>parseUnqt</span>
<a name="line-588"></a>    <span class='hs-keyword'>where</span>
<a name="line-589"></a>      <span class='hs-comment'>-- fromGDot :: G.DotGraph n -&gt; DotGraph n</span>
<a name="line-590"></a>      <span class='hs-varid'>fromGDot</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromDotRepr</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-varop'>`asTypeOf`</span> <span class='hs-layout'>(</span><span class='hs-varid'>undefined</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>G</span><span class='hs-varop'>.</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-591"></a>
<a name="line-592"></a>  <span class='hs-varid'>parse</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parseUnqt</span> <span class='hs-comment'>-- Don't want the option of quoting</span>
<a name="line-593"></a>
<a name="line-594"></a><a name="cOptions"></a><span class='hs-definition'>cOptions</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CanonicaliseOptions</span>
<a name="line-595"></a><span class='hs-definition'>cOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>COpts</span> <span class='hs-layout'>{</span> <span class='hs-varid'>edgesInClusters</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-596"></a>                 <span class='hs-layout'>,</span> <span class='hs-varid'>groupAttributes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-597"></a>                 <span class='hs-layout'>}</span>
<a name="line-598"></a>
<a name="line-599"></a><a name="fromDotRepr"></a><span class='hs-comment'>-- | Convert any existing DotRepr instance to a 'DotGraph'.</span>
<a name="line-600"></a><span class='hs-definition'>fromDotRepr</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotRepr</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-varid'>dg</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-601"></a><span class='hs-definition'>fromDotRepr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeFromCanonical</span> <span class='hs-varop'>.</span> <span class='hs-varid'>canonicaliseOptions</span> <span class='hs-varid'>cOptions</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unAnonymise</span>
<a name="line-602"></a>
<a name="line-603"></a><a name="unsafeFromCanonical"></a><span class='hs-comment'>-- | Convert a canonical Dot graph to a graph-based one.  This assumes</span>
<a name="line-604"></a><span class='hs-comment'>--   that the canonical graph is the same format as returned by</span>
<a name="line-605"></a><span class='hs-comment'>--   'toCanonical'.  The \"unsafeness\" is that:</span>
<a name="line-606"></a><span class='hs-comment'>--</span>
<a name="line-607"></a><span class='hs-comment'>--   * All clusters must have a unique identifier ('unAnonymise' can</span>
<a name="line-608"></a><span class='hs-comment'>--     be used to make sure all clusters /have/ an identifier, but it</span>
<a name="line-609"></a><span class='hs-comment'>--     doesn't ensure uniqueness).</span>
<a name="line-610"></a><span class='hs-comment'>--</span>
<a name="line-611"></a><span class='hs-comment'>--   * All nodes are assumed to be explicitly listed precisely once.</span>
<a name="line-612"></a><span class='hs-comment'>--</span>
<a name="line-613"></a><span class='hs-comment'>--   * Only edges found in the root graph are considered.</span>
<a name="line-614"></a><span class='hs-comment'>--</span>
<a name="line-615"></a><span class='hs-comment'>--   If this isn't the case, use 'fromCanonical' instead.</span>
<a name="line-616"></a><span class='hs-comment'>--</span>
<a name="line-617"></a><span class='hs-comment'>--   The 'graphToDot' function from "Data.GraphViz" produces output</span>
<a name="line-618"></a><span class='hs-comment'>--   suitable for this function (assuming all clusters are provided</span>
<a name="line-619"></a><span class='hs-comment'>--   with a unique identifier); 'graphElemsToDot' is suitable if all</span>
<a name="line-620"></a><span class='hs-comment'>--   nodes are specified in the input list (rather than just the</span>
<a name="line-621"></a><span class='hs-comment'>--   edges).</span>
<a name="line-622"></a><span class='hs-definition'>unsafeFromCanonical</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-623"></a><span class='hs-definition'>unsafeFromCanonical</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DG</span> <span class='hs-layout'>{</span> <span class='hs-varid'>strictGraph</span>   <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>strictGraph</span> <span class='hs-varid'>dg</span>
<a name="line-624"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>directedGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dirGraph</span>
<a name="line-625"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>graphAttrs</span>    <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>as</span>
<a name="line-626"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>graphID</span>       <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mgid</span>
<a name="line-627"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>clusters</span>      <span class='hs-keyglyph'>=</span> <span class='hs-varid'>cs</span>
<a name="line-628"></a>                            <span class='hs-layout'>,</span> <span class='hs-varid'>values</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ns</span>
<a name="line-629"></a>                            <span class='hs-layout'>}</span>
<a name="line-630"></a>  <span class='hs-keyword'>where</span>
<a name="line-631"></a>    <span class='hs-varid'>stmts</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>graphStatements</span> <span class='hs-varid'>dg</span>
<a name="line-632"></a>    <span class='hs-varid'>mgid</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>graphID</span> <span class='hs-varid'>dg</span>
<a name="line-633"></a>    <span class='hs-varid'>dirGraph</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>directedGraph</span> <span class='hs-varid'>dg</span>
<a name="line-634"></a>
<a name="line-635"></a>    <span class='hs-layout'>(</span><span class='hs-keyword'>as</span><span class='hs-layout'>,</span> <span class='hs-varid'>cs</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fCStmt</span> <span class='hs-conid'>Nothing</span> <span class='hs-varid'>stmts</span>
<a name="line-636"></a>
<a name="line-637"></a>    <span class='hs-varid'>fCStmt</span> <span class='hs-varid'>p</span> <span class='hs-varid'>stmts'</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>sgAs</span><span class='hs-layout'>,</span> <span class='hs-varid'>cs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns'</span><span class='hs-layout'>)</span>
<a name="line-638"></a>      <span class='hs-keyword'>where</span>
<a name="line-639"></a>        <span class='hs-varid'>sgAs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toGlobAttrs</span> <span class='hs-varop'>$</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>attrStmts</span> <span class='hs-varid'>stmts'</span>
<a name="line-640"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>cs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>sgNs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>unions</span> <span class='hs-varop'>***</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>unions</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unzip</span>
<a name="line-641"></a>                      <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fCSG</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>subGraphs</span> <span class='hs-varid'>stmts'</span>
<a name="line-642"></a>        <span class='hs-varid'>nNs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fDN</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>nodeStmts</span> <span class='hs-varid'>stmts'</span>
<a name="line-643"></a>        <span class='hs-varid'>ns'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>sgNs</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span><span class='hs-varop'>`</span> <span class='hs-varid'>nNs</span>
<a name="line-644"></a>
<a name="line-645"></a>    <span class='hs-varid'>fCSG</span> <span class='hs-varid'>p</span> <span class='hs-varid'>sg</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>insert</span> <span class='hs-varid'>sgid</span> <span class='hs-varid'>ci</span> <span class='hs-varid'>cs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns'</span><span class='hs-layout'>)</span>
<a name="line-646"></a>      <span class='hs-keyword'>where</span>
<a name="line-647"></a>        <span class='hs-varid'>msgid</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>sgid</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>subGraphID</span> <span class='hs-varid'>sg</span>
<a name="line-648"></a>        <span class='hs-layout'>(</span><span class='hs-varid'>as'</span><span class='hs-layout'>,</span> <span class='hs-varid'>cs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ns'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fCStmt</span> <span class='hs-varid'>msgid</span> <span class='hs-varop'>$</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>subGraphStmts</span> <span class='hs-varid'>sg</span>
<a name="line-649"></a>        <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CI</span> <span class='hs-varid'>p</span> <span class='hs-varid'>as'</span>
<a name="line-650"></a>
<a name="line-651"></a>    <span class='hs-varid'>fDN</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotNode</span> <span class='hs-varid'>n</span> <span class='hs-varid'>as'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span> <span class='hs-varid'>n</span>
<a name="line-652"></a>                            <span class='hs-layout'>,</span> <span class='hs-conid'>NI</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_inCluster</span>    <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span>
<a name="line-653"></a>                                 <span class='hs-layout'>,</span> <span class='hs-sel'>_attributes</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>as'</span>
<a name="line-654"></a>                                 <span class='hs-layout'>,</span> <span class='hs-sel'>_predecessors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>eSel</span> <span class='hs-varid'>n</span> <span class='hs-varid'>tEs</span>
<a name="line-655"></a>                                 <span class='hs-layout'>,</span> <span class='hs-sel'>_successors</span>   <span class='hs-keyglyph'>=</span> <span class='hs-varid'>eSel</span> <span class='hs-varid'>n</span> <span class='hs-varid'>fEs</span>
<a name="line-656"></a>                                 <span class='hs-layout'>}</span>
<a name="line-657"></a>                            <span class='hs-layout'>)</span>
<a name="line-658"></a>
<a name="line-659"></a>    <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-varid'>edgeStmts</span> <span class='hs-varid'>stmts</span>
<a name="line-660"></a>    <span class='hs-varid'>fEs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toEdgeMap</span> <span class='hs-varid'>fromNode</span> <span class='hs-varid'>toNode</span> <span class='hs-varid'>es</span>
<a name="line-661"></a>    <span class='hs-varid'>tEs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>delLoops</span> <span class='hs-varop'>$</span> <span class='hs-varid'>toEdgeMap</span> <span class='hs-varid'>toNode</span> <span class='hs-varid'>fromNode</span> <span class='hs-varid'>es</span>
<a name="line-662"></a>    <span class='hs-varid'>eSel</span> <span class='hs-varid'>n</span> <span class='hs-varid'>es'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varop'>$</span> <span class='hs-varid'>n</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>es'</span>
<a name="line-663"></a>    <span class='hs-varid'>delLoops</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapWithKey</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>delete</span>
<a name="line-664"></a>
<a name="line-665"></a><a name="toEdgeMap"></a><span class='hs-definition'>toEdgeMap</span>     <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-666"></a>                 <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Map</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-667"></a><span class='hs-definition'>toEdgeMap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>eM</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>groupSortCollectBy</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t'</span>
<a name="line-668"></a>  <span class='hs-keyword'>where</span>
<a name="line-669"></a>    <span class='hs-varid'>t'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftA2</span> <span class='hs-conid'>(,)</span> <span class='hs-varid'>t</span> <span class='hs-varid'>edgeAttributes</span>
<a name="line-670"></a>    <span class='hs-varid'>eM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>groupSortCollectBy</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>snd</span>
<a name="line-671"></a>
<a name="line-672"></a><a name="mapNs"></a><span class='hs-definition'>mapNs</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>n'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n'</span>
<a name="line-673"></a><span class='hs-definition'>mapNs</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>DG</span> <span class='hs-varid'>st</span> <span class='hs-varid'>d</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>mid</span> <span class='hs-varid'>cs</span> <span class='hs-varid'>vs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DG</span> <span class='hs-varid'>st</span> <span class='hs-varid'>d</span> <span class='hs-keyword'>as</span> <span class='hs-varid'>mid</span> <span class='hs-varid'>cs</span>
<a name="line-674"></a>                                 <span class='hs-varop'>$</span> <span class='hs-varid'>mapNM</span> <span class='hs-varid'>vs</span>
<a name="line-675"></a>  <span class='hs-keyword'>where</span>
<a name="line-676"></a>    <span class='hs-varid'>mapNM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>mapNI</span> <span class='hs-varop'>.</span> <span class='hs-varid'>mpM</span>
<a name="line-677"></a>    <span class='hs-varid'>mapNI</span> <span class='hs-layout'>(</span><span class='hs-conid'>NI</span> <span class='hs-varid'>mc</span> <span class='hs-varid'>as'</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NI</span> <span class='hs-varid'>mc</span> <span class='hs-varid'>as'</span> <span class='hs-layout'>(</span><span class='hs-varid'>mpM</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>mpM</span> <span class='hs-varid'>ss</span><span class='hs-layout'>)</span>
<a name="line-678"></a>    <span class='hs-varid'>mpM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapKeys</span> <span class='hs-varid'>f</span>
<a name="line-679"></a>
<a name="line-680"></a><a name="getGraphInfo"></a><span class='hs-definition'>getGraphInfo</span>    <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-layout'>,</span> <span class='hs-conid'>ClusterLookup</span><span class='hs-layout'>)</span>
<a name="line-681"></a><span class='hs-definition'>getGraphInfo</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>gas</span><span class='hs-layout'>,</span> <span class='hs-varid'>cl</span><span class='hs-layout'>)</span>
<a name="line-682"></a>  <span class='hs-keyword'>where</span>
<a name="line-683"></a>    <span class='hs-varid'>toGA</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GraphAttrs</span> <span class='hs-varop'>.</span> <span class='hs-varid'>unSame</span>
<a name="line-684"></a>    <span class='hs-layout'>(</span><span class='hs-varid'>gas</span><span class='hs-layout'>,</span> <span class='hs-varid'>cgs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>toGA</span> <span class='hs-varop'>***</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>toGA</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>globAttrMap</span> <span class='hs-varid'>graphAs</span> <span class='hs-varid'>dg</span>
<a name="line-685"></a>    <span class='hs-varid'>pM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>pInit</span> <span class='hs-varop'>$</span> <span class='hs-varid'>clusterPath</span> <span class='hs-varid'>dg</span>
<a name="line-686"></a>
<a name="line-687"></a>    <span class='hs-varid'>cl</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapWithKey</span> <span class='hs-varid'>addPath</span> <span class='hs-varop'>$</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapKeysMonotonic</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>cgs</span>
<a name="line-688"></a>
<a name="line-689"></a>    <span class='hs-varid'>addPath</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span> <span class='hs-varid'>maybe</span> <span class='hs-conid'>[]</span> <span class='hs-layout'>(</span><span class='hs-conop'>:</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>c</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>pM</span>
<a name="line-690"></a>                   <span class='hs-layout'>,</span> <span class='hs-keyword'>as</span>
<a name="line-691"></a>                   <span class='hs-layout'>)</span>
<a name="line-692"></a>
<a name="line-693"></a>    <span class='hs-varid'>pInit</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-varid'>viewr</span> <span class='hs-varid'>p</span> <span class='hs-keyword'>of</span>
<a name="line-694"></a>                <span class='hs-layout'>(</span><span class='hs-varid'>p'</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.:&gt;</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>p'</span>
<a name="line-695"></a>                <span class='hs-keyword'>_</span>             <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-696"></a>
<a name="line-697"></a><a name="getNodeInfo"></a><span class='hs-definition'>getNodeInfo</span>             <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeLookup</span> <span class='hs-varid'>n</span>
<a name="line-698"></a><span class='hs-definition'>getNodeInfo</span> <span class='hs-varid'>withGlob</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLookup</span> <span class='hs-varid'>ns</span>
<a name="line-699"></a>  <span class='hs-keyword'>where</span>
<a name="line-700"></a>    <span class='hs-layout'>(</span><span class='hs-varid'>gGlob</span><span class='hs-layout'>,</span> <span class='hs-varid'>aM</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>globAttrMap</span> <span class='hs-varid'>nodeAs</span> <span class='hs-varid'>dg</span>
<a name="line-701"></a>    <span class='hs-varid'>pM</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusterPath</span> <span class='hs-varid'>dg</span>
<a name="line-702"></a>
<a name="line-703"></a>    <span class='hs-varid'>ns</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-704"></a>
<a name="line-705"></a>    <span class='hs-varid'>toLookup</span> <span class='hs-varid'>ni</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>pth</span><span class='hs-layout'>,</span> <span class='hs-varid'>as'</span><span class='hs-layout'>)</span>
<a name="line-706"></a>      <span class='hs-keyword'>where</span>
<a name="line-707"></a>        <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_attributes</span> <span class='hs-varid'>ni</span>
<a name="line-708"></a>        <span class='hs-varid'>mp</span> <span class='hs-keyglyph'>=</span> <span class='hs-sel'>_inCluster</span> <span class='hs-varid'>ni</span>
<a name="line-709"></a>        <span class='hs-varid'>pth</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varop'>$</span> <span class='hs-varid'>mp</span> <span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>pM</span>
<a name="line-710"></a>        <span class='hs-varid'>pAs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>gGlob</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>aM</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>mp</span>
<a name="line-711"></a>        <span class='hs-varid'>as'</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>withGlob</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unSame</span> <span class='hs-varop'>$</span> <span class='hs-varid'>toSAttr</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>`</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span><span class='hs-varop'>`</span> <span class='hs-varid'>pAs</span>
<a name="line-712"></a>            <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>as</span>
<a name="line-713"></a>
<a name="line-714"></a><a name="getEdgeInfo"></a><span class='hs-definition'>getEdgeInfo</span>             <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>n</span><span class='hs-keyglyph'>]</span>
<a name="line-715"></a><span class='hs-definition'>getEdgeInfo</span> <span class='hs-varid'>withGlob</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-varid'>mkDotEdges</span><span class='hs-layout'>)</span> <span class='hs-varid'>es</span>
<a name="line-716"></a>  <span class='hs-keyword'>where</span>
<a name="line-717"></a>    <span class='hs-varid'>gGlob</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>edgeAs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>graphAttrs</span> <span class='hs-varid'>dg</span>
<a name="line-718"></a>
<a name="line-719"></a>    <span class='hs-varid'>es</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varop'>.</span> <span class='hs-conid'>(,)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-720"></a>         <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>assocs</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>assocs</span> <span class='hs-varop'>.</span> <span class='hs-sel'>_successors</span><span class='hs-layout'>)</span>
<a name="line-721"></a>         <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span>
<a name="line-722"></a>
<a name="line-723"></a>    <span class='hs-varid'>addGlob</span> <span class='hs-keyword'>as</span>
<a name="line-724"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>withGlob</span>  <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unSame</span> <span class='hs-varop'>$</span> <span class='hs-varid'>toSAttr</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>`</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span><span class='hs-varop'>`</span> <span class='hs-varid'>gGlob</span>
<a name="line-725"></a>      <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>as</span>
<a name="line-726"></a>
<a name="line-727"></a>    <span class='hs-varid'>mkDotEdges</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-layout'>,</span> <span class='hs-varid'>ass</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>DotEdge</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-varop'>.</span> <span class='hs-varid'>addGlob</span><span class='hs-layout'>)</span> <span class='hs-varid'>ass</span>
<a name="line-728"></a>
<a name="line-729"></a><a name="globAttrMap"></a><span class='hs-definition'>globAttrMap</span>       <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>GlobAttrs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>SAttrs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-730"></a>                     <span class='hs-keyglyph'>-&gt;</span> <span class='hs-layout'>(</span><span class='hs-conid'>SAttrs</span><span class='hs-layout'>,</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>GraphID</span> <span class='hs-conid'>SAttrs</span><span class='hs-layout'>)</span>
<a name="line-731"></a><span class='hs-definition'>globAttrMap</span> <span class='hs-varid'>af</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>gGlob</span><span class='hs-layout'>,</span> <span class='hs-varid'>aM</span><span class='hs-layout'>)</span>
<a name="line-732"></a>  <span class='hs-keyword'>where</span>
<a name="line-733"></a>    <span class='hs-varid'>gGlob</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>af</span> <span class='hs-varop'>$</span> <span class='hs-varid'>graphAttrs</span> <span class='hs-varid'>dg</span>
<a name="line-734"></a>
<a name="line-735"></a>    <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-736"></a>
<a name="line-737"></a>    <span class='hs-varid'>aM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>attrsFor</span> <span class='hs-varid'>cs</span>
<a name="line-738"></a>
<a name="line-739"></a>    <span class='hs-varid'>attrsFor</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>as</span> <span class='hs-varop'>`</span><span class='hs-conid'>S</span><span class='hs-varop'>.</span><span class='hs-varid'>union</span><span class='hs-varop'>`</span> <span class='hs-varid'>pAs</span>
<a name="line-740"></a>      <span class='hs-keyword'>where</span>
<a name="line-741"></a>        <span class='hs-keyword'>as</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>af</span> <span class='hs-varop'>$</span> <span class='hs-varid'>clusterAttrs</span> <span class='hs-varid'>ci</span>
<a name="line-742"></a>        <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varid'>ci</span>
<a name="line-743"></a>        <span class='hs-varid'>pAs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-varid'>gGlob</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>aM</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>p</span>
<a name="line-744"></a>
<a name="line-745"></a><a name="clusterPath"></a><span class='hs-definition'>clusterPath</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Map</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span> <span class='hs-conid'>St</span><span class='hs-varop'>.</span><span class='hs-conid'>Path</span>
<a name="line-746"></a><span class='hs-definition'>clusterPath</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapKeysMonotonic</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-conid'>Just</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>clusterPath'</span>
<a name="line-747"></a>
<a name="line-748"></a><a name="clusterPath'"></a><span class='hs-definition'>clusterPath'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>GraphID</span> <span class='hs-layout'>(</span><span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-conid'>Seq</span> <span class='hs-conid'>GraphID</span><span class='hs-layout'>)</span>
<a name="line-749"></a><span class='hs-definition'>clusterPath'</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pM</span>
<a name="line-750"></a>  <span class='hs-keyword'>where</span>
<a name="line-751"></a>    <span class='hs-varid'>cs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span>
<a name="line-752"></a>
<a name="line-753"></a>    <span class='hs-varid'>pM</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>mapWithKey</span> <span class='hs-varid'>pathOf</span> <span class='hs-varid'>cs</span>
<a name="line-754"></a>
<a name="line-755"></a>    <span class='hs-varid'>pathOf</span> <span class='hs-varid'>c</span> <span class='hs-varid'>ci</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pPth</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.|&gt;</span> <span class='hs-varid'>c</span>
<a name="line-756"></a>      <span class='hs-keyword'>where</span>
<a name="line-757"></a>        <span class='hs-varid'>mp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>parentCluster</span> <span class='hs-varid'>ci</span>
<a name="line-758"></a>        <span class='hs-varid'>pPth</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromMaybe</span> <span class='hs-conid'>Seq</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varop'>`</span><span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>lookup</span><span class='hs-varop'>`</span> <span class='hs-varid'>pM</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-varid'>mp</span>
<a name="line-759"></a>
<a name="line-760"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-761"></a>
<a name="line-762"></a><a name="withValues"></a><span class='hs-definition'>withValues</span>      <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-763"></a><span class='hs-definition'>withValues</span> <span class='hs-varid'>f</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>values</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>values</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>}</span>
<a name="line-764"></a>
<a name="line-765"></a><a name="withClusters"></a><span class='hs-definition'>withClusters</span>      <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Map</span> <span class='hs-conid'>GraphID</span> <span class='hs-conid'>ClusterInfo</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Map</span> <span class='hs-conid'>GraphID</span> <span class='hs-conid'>ClusterInfo</span><span class='hs-layout'>)</span>
<a name="line-766"></a>                     <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DotGraph</span> <span class='hs-varid'>n</span>
<a name="line-767"></a><span class='hs-definition'>withClusters</span> <span class='hs-varid'>f</span> <span class='hs-varid'>dg</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>{</span> <span class='hs-varid'>clusters</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-varid'>clusters</span> <span class='hs-varid'>dg</span> <span class='hs-layout'>}</span>
<a name="line-768"></a>
<a name="line-769"></a><a name="toGlobAttrs"></a><span class='hs-definition'>toGlobAttrs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>GlobAttrs</span>
<a name="line-770"></a><span class='hs-definition'>toGlobAttrs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mkGA</span> <span class='hs-varop'>.</span> <span class='hs-varid'>partitionGlobal</span>
<a name="line-771"></a>  <span class='hs-keyword'>where</span>
<a name="line-772"></a>    <span class='hs-varid'>mkGA</span> <span class='hs-layout'>(</span><span class='hs-varid'>ga</span><span class='hs-layout'>,</span><span class='hs-varid'>na</span><span class='hs-layout'>,</span><span class='hs-varid'>ea</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GA</span> <span class='hs-layout'>(</span><span class='hs-varid'>toSAttr</span> <span class='hs-varid'>ga</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toSAttr</span> <span class='hs-varid'>na</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toSAttr</span> <span class='hs-varid'>ea</span><span class='hs-layout'>)</span>
<a name="line-773"></a>
<a name="line-774"></a><a name="fromGlobAttrs"></a><span class='hs-definition'>fromGlobAttrs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GlobAttrs</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>GlobalAttributes</span><span class='hs-keyglyph'>]</span>
<a name="line-775"></a><span class='hs-definition'>fromGlobAttrs</span> <span class='hs-layout'>(</span><span class='hs-conid'>GA</span> <span class='hs-varid'>ga</span> <span class='hs-varid'>na</span> <span class='hs-varid'>ea</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>filter</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>null</span> <span class='hs-varop'>.</span> <span class='hs-varid'>attrs</span><span class='hs-layout'>)</span>
<a name="line-776"></a>                              <span class='hs-keyglyph'>[</span> <span class='hs-conid'>GraphAttrs</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unSame</span> <span class='hs-varid'>ga</span>
<a name="line-777"></a>                              <span class='hs-layout'>,</span> <span class='hs-conid'>NodeAttrs</span>  <span class='hs-varop'>$</span> <span class='hs-varid'>unSame</span> <span class='hs-varid'>na</span>
<a name="line-778"></a>                              <span class='hs-layout'>,</span> <span class='hs-conid'>EdgeAttrs</span>  <span class='hs-varop'>$</span> <span class='hs-varid'>unSame</span> <span class='hs-varid'>ea</span>
<a name="line-779"></a>                              <span class='hs-keyglyph'>]</span>
<a name="line-780"></a>
<a name="line-781"></a><a name="niSucc"></a><span class='hs-definition'>niSucc</span>      <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span>
<a name="line-782"></a><span class='hs-definition'>niSucc</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ni</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_successors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-sel'>_successors</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>}</span>
<a name="line-783"></a>
<a name="line-784"></a><a name="niPred"></a><span class='hs-definition'>niPred</span>      <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>NodeInfo</span> <span class='hs-varid'>n</span>
<a name="line-785"></a><span class='hs-definition'>niPred</span> <span class='hs-varid'>f</span> <span class='hs-varid'>ni</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>{</span> <span class='hs-sel'>_predecessors</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-sel'>_predecessors</span> <span class='hs-varid'>ni</span> <span class='hs-layout'>}</span>
<a name="line-786"></a>
<a name="line-787"></a><a name="toMap"></a><span class='hs-definition'>toMap</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ord</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Attributes</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span>
<a name="line-788"></a><span class='hs-definition'>toMap</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>fromAscList</span> <span class='hs-varop'>.</span> <span class='hs-varid'>groupSortCollectBy</span> <span class='hs-varid'>fst</span> <span class='hs-varid'>snd</span>
<a name="line-789"></a>
<a name="line-790"></a><a name="fromMap"></a><span class='hs-definition'>fromMap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EdgeMap</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-layout'>,</span> <span class='hs-conid'>Attributes</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-791"></a><span class='hs-definition'>fromMap</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMap</span> <span class='hs-layout'>(</span><span class='hs-varid'>uncurry</span> <span class='hs-layout'>(</span><span class='hs-varid'>map</span> <span class='hs-varop'>.</span> <span class='hs-conid'>(,)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>M</span><span class='hs-varop'>.</span><span class='hs-varid'>toList</span>
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