hg.stevelosh.com > docs.stevelosh.com

e805f586a549 

cl-digraph: Update site.
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author Steve Losh <steve@stevelosh.com>
date Tue, 03 Dec 2019 19:32:32 -0500
parents 697d200ad349
children ecf37e3bc6e1
branches/tags (none)
files cl-digraph/_dmedia/goodwolf.css cl-digraph/_dmedia/style.less cl-digraph/_dmedia/tango.css cl-digraph/changelog/index.html cl-digraph/reference-dot/index.html cl-digraph/reference/index.html cl-digraph/usage/index.html

Changes

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cl-digraph/_dmedia/goodwolf.css	Tue Dec 03 19:32:32 2019 -0500
@@ -0,0 +1,62 @@
+/* @override http://localhost:8080/media/css/pygments-monokai-light.css */
+div.highlight .hll { background-color: #FFD7EF; display: block; }
+div.highlight .err { color: #fff; background-color: #f00 } /* Error */
+div.highlight .gi { font-weight: bold } /* Diff Insert */
+div.highlight .gd { font-weight: bold } /* Diff Delete */
+div.highlight .k { color: #111} /* Keyword */
+div.highlight .l { color: #111 } /* Literal */
+div.highlight .n { color: #111 } /* Name */
+div.highlight .o { color: #111 } /* Operator */
+div.highlight .p { color: #111 } /* Punctuation */
+div.highlight .c  { color: #714678; font-style: italic; font-weight: bold; } /* Comment */
+div.highlight .cm { color: #714678; font-style: italic; font-weight: bold; } /* Comment.Multiline */
+div.highlight .cp { color: #714678; font-style: italic; font-weight: bold; } /* Comment.Preproc */
+div.highlight .c1 { color: #714678; font-style: italic; font-weight: bold; } /* Comment.Single */
+div.highlight .cs { color: #714678; font-style: italic; font-weight: bold; } /* Comment.Special */
+div.highlight .ge { font-style: italic } /* Generic.Emph */
+div.highlight .gs { font-weight: bold } /* Generic.Strong */
+div.highlight .kc { color: #111 } /* Keyword.Constant */
+div.highlight .kd { color: #111 } /* Keyword.Declaration */
+div.highlight .kn { color: #111 } /* Keyword.Namespace */
+div.highlight .kp { color: #111 } /* Keyword.Pseudo */
+div.highlight .kr { color: #111 } /* Keyword.Reserved */
+div.highlight .kt { color: #111 } /* Keyword.Type */
+div.highlight .ld { color: #111 } /* Literal.Date */
+div.highlight .m { color: #111 } /* Literal.Number */
+div.highlight .s { color: #111; font-style: italic; } /* Literal.String */
+div.highlight .na { color: #111 } /* Name.Attribute */
+div.highlight .nb { color: #111 } /* Name.Builtin */
+div.highlight .nc { color: #111 } /* Name.Class */
+div.highlight .no { color: #111 } /* Name.Constant */
+div.highlight .nd { color: #111 } /* Name.Decorator */
+div.highlight .ni { color: #111 } /* Name.Entity */
+div.highlight .ne { color: #111 } /* Name.Exception */
+div.highlight .nf { color: #111} /* Name.Function */
+div.highlight .nl { color: #111 } /* Name.Label */
+div.highlight .nn { color: #111} /* Name.Namespace */
+div.highlight .nx { color: #111 } /* Name.Other */
+div.highlight .py { color: #111 } /* Name.Property */
+div.highlight .nt { color: #111 } /* Name.Tag */
+div.highlight .nv { color: #111 } /* Name.Variable */
+div.highlight .ow { color: #111 } /* Operator.Word */
+div.highlight .w { color: #111 } /* Text.Whitespace */
+div.highlight .mf { color: #111 } /* Literal.Number.Float */
+div.highlight .mh { color: #111 } /* Literal.Number.Hex */
+div.highlight .mi { color: #111 } /* Literal.Number.Integer */
+div.highlight .mo { color: #111 } /* Literal.Number.Oct */
+div.highlight .sb { color: #111 } /* Literal.String.Backtick */
+div.highlight .sc { color: #111 } /* Literal.String.Char */
+div.highlight .sd { color: #111 } /* Literal.String.Doc */
+div.highlight .s2 { color: #111 } /* Literal.String.Double */
+div.highlight .se { color: #111 } /* Literal.String.Escape */
+div.highlight .sh { color: #111 } /* Literal.String.Heredoc */
+div.highlight .si { color: #111 } /* Literal.String.Interpol */
+div.highlight .sx { color: #111 } /* Literal.String.Other */
+div.highlight .sr { color: #111 } /* Literal.String.Regex */
+div.highlight .s1 { color: #111 } /* Literal.String.Single */
+div.highlight .ss { color: #111 } /* Literal.String.Symbol */
+div.highlight .bp { color: #111 } /* Name.Builtin.Pseudo */
+div.highlight .vc { color: #111 } /* Name.Variable.Class */
+div.highlight .vg { color: #111 } /* Name.Variable.Global */
+div.highlight .vi { color: #111 } /* Name.Variable.Instance */
+div.highlight .il { color: #111 } /* Literal.Number.Integer.Long */
--- a/cl-digraph/_dmedia/style.less	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/_dmedia/style.less	Tue Dec 03 19:32:32 2019 -0500
@@ -2,11 +2,11 @@
     overflow-y: scroll;
 }
 .wrap {
-    width: 600px;
+    width: 640px;
     margin: 40px auto 180px;
 }
 body {
-    font-size: 18px;
+    font-size: 16px;
     line-height: 1.4;
     font-family: Georgia, Palatino, "Palatino Linotype", serif;
     color: #111111;
@@ -27,11 +27,11 @@
     }
 }
 h1 {
-    font-size: 48px;
+    font-size: 40px;
     line-height: 1;
 }
 h2 {
-    font-size: 34px;
+    font-size: 28px;
     line-height: 1;
     margin-top: 40px;
     margin-bottom: 0;
@@ -44,7 +44,7 @@
     }
 }
 h3 {
-    font-size: 26px;
+    font-size: 22px;
     line-height: 1;
     margin-top: 40px;
     margin-bottom: 0;
@@ -57,7 +57,7 @@
     }
 }
 h4 {
-    font-size: 20px;
+    font-size: 18px;
     line-height: 1;
     margin-top: 30px;
     margin-bottom: 0;
@@ -83,7 +83,7 @@
     }
 }
 pre {
-    font-size: 15px;
+    font-size: 14px;
     line-height: 1.3;
     white-space: pre;
     overflow-x: auto;
@@ -93,7 +93,7 @@
     font-family: Menlo, Monaco, Consolas, monospace;
 }
 code {
-    font-size: 15px;
+    font-size: 14px;
     border: 1px solid #fdd;
     background: #fffafa;
     padding: 1px 4px;
--- a/cl-digraph/_dmedia/tango.css	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/_dmedia/tango.css	Tue Dec 03 19:32:32 2019 -0500
@@ -1,6 +1,6 @@
 .codehilite .hll { background-color: #ffffcc }
 .codehilite .c { color: #8f5902; font-style: italic } /* Comment */
-.codehilite .err { color: #a40000; border: 1px solid #ef2929 } /* Error */
+.codehilite .err { color: #000000; } /* Error */
 .codehilite .g { color: #000000 } /* Generic */
 .codehilite .k { color: #204a87; font-weight: bold } /* Keyword */
 .codehilite .l { color: #000000 } /* Literal */
@@ -61,7 +61,7 @@
 .codehilite .sx { color: #4e9a06 } /* Literal.String.Other */
 .codehilite .sr { color: #4e9a06 } /* Literal.String.Regex */
 .codehilite .s1 { color: #4e9a06 } /* Literal.String.Single */
-.codehilite .ss { color: #4e9a06 } /* Literal.String.Symbol */
+.codehilite .ss { color: #000000 } /* Literal.String.Symbol */
 .codehilite .bp { color: #3465a4 } /* Name.Builtin.Pseudo */
 .codehilite .vc { color: #000000 } /* Name.Variable.Class */
 .codehilite .vg { color: #000000 } /* Name.Variable.Global */
--- a/cl-digraph/changelog/index.html	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/changelog/index.html	Tue Dec 03 19:32:32 2019 -0500
@@ -15,11 +15,15 @@
 <h1 id="changelog"><a href="">Changelog</a></h1><p>Here's the list of changes in each released version.</p>
 <div class="toc">
 <ul>
+<li><a href="#v130">v1.3.0</a></li>
 <li><a href="#v121">v1.2.1</a></li>
 <li><a href="#v120">v1.2.0</a></li>
 <li><a href="#v110">v1.1.0</a></li>
 <li><a href="#v100">v1.0.0</a></li>
 </ul></div>
+<h2 id="v130">v1.3.0</h2>
+<p>Added the <code>arbitrary-vertex</code> function to return an arbitrary vertex of
+a digraph.</p>
 <h2 id="v121">v1.2.1</h2>
 <p>Fixed a bug in <code>copy-digraph</code>.</p>
 <h2 id="v120">v1.2.0</h2>
--- a/cl-digraph/reference-dot/index.html	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/reference-dot/index.html	Tue Dec 03 19:32:32 2019 -0500
@@ -23,7 +23,7 @@
 </ul></div>
 <h2 id="package-digraphdot">Package <code>DIGRAPH.DOT</code></h2>
 <h3 id="draw-function"><code>DRAW</code> (function)</h3>
-<div class="codehilite"><pre><span/>(DRAW DIGRAPH &amp;amp;KEY (FILENAME digraph.png) (FORMAT :PNG))
+<div class="codehilite"><pre><span/>(DRAW DIGRAPH &amp;KEY (FILENAME digraph.png) (FORMAT :PNG))
 </pre></div>
 
 
--- a/cl-digraph/reference/index.html	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/reference/index.html	Tue Dec 03 19:32:32 2019 -0500
@@ -20,6 +20,7 @@
 <div class="toc">
 <ul>
 <li><a href="#package-digraph">Package DIGRAPH</a><ul>
+<li><a href="#arbitrary-vertex-function">ARBITRARY-VERTEX (function)</a></li>
 <li><a href="#contains-edge-p-function">CONTAINS-EDGE-P (function)</a></li>
 <li><a href="#contains-vertex-p-function">CONTAINS-VERTEX-P (function)</a></li>
 <li><a href="#copy-digraph-function">COPY-DIGRAPH (function)</a></li>
@@ -58,6 +59,13 @@
 </li>
 </ul></div>
 <h2 id="package-digraph">Package <code>DIGRAPH</code></h2>
+<h3 id="arbitrary-vertex-function"><code>ARBITRARY-VERTEX</code> (function)</h3>
+<div class="codehilite"><pre><span/>(ARBITRARY-VERTEX DIGRAPH)
+</pre></div>
+
+
+<p>Return an arbitrary vertex of <code>digraph</code> and <code>t</code>.</p>
+<p>If the digraph is empty, <code>(values nil nil)</code> will be returned instead.</p>
 <h3 id="contains-edge-p-function"><code>CONTAINS-EDGE-P</code> (function)</h3>
 <div class="codehilite"><pre><span/>(CONTAINS-EDGE-P DIGRAPH PREDECESSOR SUCCESSOR)
 </pre></div>
@@ -154,7 +162,7 @@
 <p>This is currently O(vertices).</p>
 <p>A root is a vertex with no outgoing edges (i.e. out-degree 0).</p>
 <h3 id="make-digraph-function"><code>MAKE-DIGRAPH</code> (function)</h3>
-<div class="codehilite"><pre><span/>(MAKE-DIGRAPH &amp;amp;KEY INITIAL-VERTICES (TEST #'EQL) (HASH-FUNCTION NIL))
+<div class="codehilite"><pre><span/>(MAKE-DIGRAPH &amp;KEY INITIAL-VERTICES (TEST #'EQL) (HASH-FUNCTION NIL))
 </pre></div>
 
 
@@ -255,7 +263,7 @@
 
 <p>Return a fresh list of the predecessors of <code>vertex</code>.</p>
 <h3 id="reachablep-function"><code>REACHABLEP</code> (function)</h3>
-<div class="codehilite"><pre><span/>(REACHABLEP DIGRAPH START TARGET &amp;amp;KEY (STRATEGY :BREADTH-FIRST))
+<div class="codehilite"><pre><span/>(REACHABLEP DIGRAPH START TARGET &amp;KEY (STRATEGY :BREADTH-FIRST))
 </pre></div>
 
 
--- a/cl-digraph/usage/index.html	Sun Nov 17 18:28:54 2019 -0500
+++ b/cl-digraph/usage/index.html	Tue Dec 03 19:32:32 2019 -0500
@@ -43,8 +43,8 @@
 <h2 id="creating-digraphs">Creating Digraphs</h2>
 <p>Digraphs can be created with <code>make-digraph</code>:</p>
 <div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:make-digraph</span><span class="p">)</span>
-<span class="c1">; =&amp;gt;</span>
-<span class="err">#</span><span class="nv">&amp;lt</span><span class="c1">;DIGRAPH:DIGRAPH () {1002CFD343}&amp;gt;</span>
+<span class="c1">; =&gt;</span>
+<span class="err">#</span><span class="nv">&lt;DIGRAPH:DIGRAPH</span> <span class="p">()</span> <span class="nv">{1002CFD343}&gt;</span>
 </pre></div>
 
 
@@ -54,15 +54,15 @@
 <div class="codehilite"><pre><span/><span class="p">(</span><span class="nb">defparameter</span> <span class="vg">*d*</span> <span class="p">(</span><span class="nv">digraph:make-digraph</span><span class="p">))</span>
 
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ()</span>
+<span class="c1">; =&gt; ()</span>
 
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="ss">'foo</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (foo)</span>
+<span class="c1">; =&gt; (foo)</span>
 
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (bar foo)</span>
+<span class="c1">; =&gt; (bar foo)</span>
 </pre></div>
 
 
@@ -75,7 +75,7 @@
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="ss">'foo</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="ss">'foo</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (foo)</span>
+<span class="c1">; =&gt; (foo)</span>
 </pre></div>
 
 
@@ -85,11 +85,11 @@
   <span class="p">(</span><span class="nv">digraph:make-digraph</span> <span class="ss">:initial-vertices</span> <span class="o">'</span><span class="p">(</span><span class="nv">a</span> <span class="nv">b</span> <span class="nv">c</span><span class="p">)))</span>
 
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (a c b)</span>
+<span class="c1">; =&gt; (a c b)</span>
 
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="ss">'foo</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (a c foo b)</span>
+<span class="c1">; =&gt; (a c foo b)</span>
 </pre></div>
 
 
@@ -99,15 +99,15 @@
   <span class="p">(</span><span class="nv">digraph:make-digraph</span> <span class="ss">:initial-vertices</span> <span class="o">'</span><span class="p">(</span><span class="nv">a</span> <span class="nv">b</span> <span class="nv">c</span><span class="p">)))</span>
 
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (a c b)</span>
+<span class="c1">; =&gt; (a c b)</span>
 
 <span class="p">(</span><span class="nv">digraph:remove-vertex</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (c b)</span>
+<span class="c1">; =&gt; (c b)</span>
 
 <span class="p">(</span><span class="nv">digraph:remove-vertex</span> <span class="vg">*d*</span> <span class="ss">'cats</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (c b)</span>
+<span class="c1">; =&gt; (c b)</span>
 </pre></div>
 
 
@@ -121,15 +121,15 @@
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="p">(</span><span class="nb">list</span> <span class="mi">1</span> <span class="mi">2</span><span class="p">))</span>
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="p">(</span><span class="nb">list</span> <span class="mi">3</span> <span class="mi">4</span><span class="p">))</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((1 2) (3 4))</span>
+<span class="c1">; =&gt; ((1 2) (3 4))</span>
 
 <span class="p">(</span><span class="nv">digraph:insert-vertex</span> <span class="vg">*d*</span> <span class="p">(</span><span class="nb">list</span> <span class="mi">1</span> <span class="mi">2</span><span class="p">))</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((1 2) (3 4))</span>
+<span class="c1">; =&gt; ((1 2) (3 4))</span>
 
 <span class="p">(</span><span class="nv">digraph:remove-vertex</span> <span class="vg">*d*</span> <span class="p">(</span><span class="nb">list</span> <span class="mi">1</span> <span class="mi">2</span><span class="p">))</span>
 <span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((3 4))</span>
+<span class="c1">; =&gt; ((3 4))</span>
 </pre></div>
 
 
@@ -161,15 +161,15 @@
   <span class="p">(</span><span class="nv">digraph:make-digraph</span> <span class="ss">:initial-vertices</span> <span class="o">'</span><span class="p">(</span><span class="nv">a</span> <span class="nv">b</span> <span class="nv">c</span><span class="p">)))</span>
 
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ()</span>
+<span class="c1">; =&gt; ()</span>
 
-<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&amp;gt; b</span>
+<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&gt; b</span>
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((a . b))</span>
+<span class="c1">; =&gt; ((a . b))</span>
 
-<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'b</span> <span class="ss">'c</span><span class="p">)</span> <span class="c1">; b -&amp;gt; c</span>
+<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'b</span> <span class="ss">'c</span><span class="p">)</span> <span class="c1">; b -&gt; c</span>
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((b . c) (a . b))</span>
+<span class="c1">; =&gt; ((b . c) (a . b))</span>
 </pre></div>
 
 
@@ -178,14 +178,14 @@
 <div class="codehilite"><pre><span/><span class="p">(</span><span class="nb">defparameter</span> <span class="vg">*d*</span>
   <span class="p">(</span><span class="nv">digraph:make-digraph</span> <span class="ss">:initial-vertices</span> <span class="o">'</span><span class="p">(</span><span class="nv">a</span> <span class="nv">b</span> <span class="nv">c</span><span class="p">)))</span>
 
-<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&amp;gt; b</span>
+<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&gt; b</span>
 <span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; ignored</span>
 <span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; ignored</span>
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((a . b))</span>
+<span class="c1">; =&gt; ((a . b))</span>
 
 <span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'cats</span> <span class="ss">'dogs</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; Error!</span>
+<span class="c1">; =&gt; Error!</span>
 </pre></div>
 
 
@@ -194,14 +194,14 @@
 <div class="codehilite"><pre><span/><span class="p">(</span><span class="nb">defparameter</span> <span class="vg">*d*</span>
   <span class="p">(</span><span class="nv">digraph:make-digraph</span> <span class="ss">:initial-vertices</span> <span class="o">'</span><span class="p">(</span><span class="nv">a</span> <span class="nv">b</span> <span class="nv">c</span><span class="p">)))</span>
 
-<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&amp;gt; b</span>
+<span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; a -&gt; b</span>
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((a . b))</span>
+<span class="c1">; =&gt; ((a . b))</span>
 
-<span class="p">(</span><span class="nv">digraph:remove-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; removes a -&amp;gt; b</span>
+<span class="p">(</span><span class="nv">digraph:remove-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; removes a -&gt; b</span>
 <span class="p">(</span><span class="nv">digraph:remove-edge</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; ignored</span>
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ()</span>
+<span class="c1">; =&gt; ()</span>
 </pre></div>
 
 
@@ -231,10 +231,10 @@
 <h3 id="vertices-and-edges">Vertices and Edges</h3>
 <p>We've already seen <code>vertices</code> and <code>edges</code>:</p>
 <div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:vertices</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; (BAR FOO D C B A)</span>
+<span class="c1">; =&gt; (BAR FOO D C B A)</span>
 
 <span class="p">(</span><span class="nv">digraph:edges</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; ((BAR . BAR) (FOO . BAR) (B . D) (A . B) (A . C))</span>
+<span class="c1">; =&gt; ((BAR . BAR) (FOO . BAR) (B . D) (A . B) (A . C))</span>
 </pre></div>
 
 
@@ -243,49 +243,49 @@
 <h3 id="neighboring-vertices">Neighboring Vertices</h3>
 <p>The <code>predecessors</code> and <code>successors</code> functions return a list of vertices with
 edges to/from a particular vertex:</p>
-<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; =&amp;gt; ()</span>
-<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span>   <span class="c1">; =&amp;gt; (b c)</span>
+<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; =&gt; ()</span>
+<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span>   <span class="c1">; =&gt; (b c)</span>
 
-<span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&amp;gt; (foo bar)</span>
-<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span>   <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&amp;gt; (bar)</span>
+<span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&gt; (foo bar)</span>
+<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span>   <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&gt; (bar)</span>
 </pre></div>
 
 
 <p><code>neighbors</code> returns all vertices that are a predecessor <em>or</em> successor of the
 given vertex:</p>
-<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:neighbors</span> <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&amp;gt; (a d)</span>
+<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:neighbors</span> <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&gt; (a d)</span>
 </pre></div>
 
 
 <h3 id="membership">Membership</h3>
 <p>To check whether a digraph contains a particular edge or vertex use
 <code>contains-vertex-p</code> and <code>contains-edge-p</code>:</p>
-<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:contains-vertex-p</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span>      <span class="c1">; =&amp;gt; t</span>
-<span class="p">(</span><span class="nv">digraph:contains-vertex-p</span> <span class="vg">*d*</span> <span class="ss">'horses</span><span class="p">)</span> <span class="c1">; =&amp;gt; nil</span>
+<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:contains-vertex-p</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span>      <span class="c1">; =&gt; t</span>
+<span class="p">(</span><span class="nv">digraph:contains-vertex-p</span> <span class="vg">*d*</span> <span class="ss">'horses</span><span class="p">)</span> <span class="c1">; =&gt; nil</span>
 
-<span class="p">(</span><span class="nv">digraph:contains-edge-p</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span>     <span class="c1">; =&amp;gt; t</span>
-<span class="p">(</span><span class="nv">digraph:contains-edge-p</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'foo</span><span class="p">)</span>   <span class="c1">; =&amp;gt; nil</span>
+<span class="p">(</span><span class="nv">digraph:contains-edge-p</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'b</span><span class="p">)</span>     <span class="c1">; =&gt; t</span>
+<span class="p">(</span><span class="nv">digraph:contains-edge-p</span> <span class="vg">*d*</span> <span class="ss">'a</span> <span class="ss">'foo</span><span class="p">)</span>   <span class="c1">; =&gt; nil</span>
 </pre></div>
 
 
 <h3 id="sizes-and-counts">Sizes and Counts</h3>
 <p>If you just want the <em>number</em> of vertices or edges in a digraph and don't need
 a list of them, use <code>count-vertices</code> and <code>count-edges</code>:</p>
-<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:count-vertices</span> <span class="vg">*d*</span><span class="p">)</span> <span class="c1">; =&amp;gt; 6</span>
-<span class="p">(</span><span class="nv">digraph:count-edges</span> <span class="vg">*d*</span><span class="p">)</span>    <span class="c1">; =&amp;gt; 5</span>
+<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:count-vertices</span> <span class="vg">*d*</span><span class="p">)</span> <span class="c1">; =&gt; 6</span>
+<span class="p">(</span><span class="nv">digraph:count-edges</span> <span class="vg">*d*</span><span class="p">)</span>    <span class="c1">; =&gt; 5</span>
 </pre></div>
 
 
 <p>Similarly, if you want to know the number of edges into/out of/involving
 a vertex use <code>degree</code>, <code>degree-in</code>, and <code>degree-out</code>:</p>
-<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; =&amp;gt; ()</span>
+<div class="codehilite"><pre><span/><span class="p">(</span><span class="nv">digraph:predecessors</span> <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; =&gt; ()</span>
 <span class="p">(</span><span class="nv">digraph:degree-in</span>    <span class="vg">*d*</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; = 0</span>
 
-<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&amp;gt; (bar)</span>
-<span class="p">(</span><span class="nv">digraph:degree-out</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&amp;gt; 1</span>
+<span class="p">(</span><span class="nv">digraph:successors</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&gt; (bar)</span>
+<span class="p">(</span><span class="nv">digraph:degree-out</span> <span class="vg">*d*</span> <span class="ss">'bar</span><span class="p">)</span> <span class="c1">; =&gt; 1</span>
 
-<span class="p">(</span><span class="nv">digraph:neighbors</span>  <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&amp;gt; (a d)</span>
-<span class="p">(</span><span class="nv">digraph:degree-out</span> <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&amp;gt; 2</span>
+<span class="p">(</span><span class="nv">digraph:neighbors</span>  <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&gt; (a d)</span>
+<span class="p">(</span><span class="nv">digraph:degree-out</span> <span class="vg">*d*</span> <span class="ss">'b</span><span class="p">)</span> <span class="c1">; =&gt; 2</span>
 </pre></div>
 
 
@@ -334,7 +334,7 @@
 <span class="p">(</span><span class="nv">digraph:insert-edge</span> <span class="vg">*d*</span> <span class="ss">'d</span> <span class="ss">'a</span><span class="p">)</span> <span class="c1">; d depends on a</span>
 
 <span class="p">(</span><span class="nv">digraph:topological-sort</span> <span class="vg">*d*</span><span class="p">)</span>
-<span class="c1">; =&amp;gt; one of</span>
+<span class="c1">; =&gt; one of</span>
 <span class="p">(</span><span class="nv">C</span> <span class="nv">B</span> <span class="nv">A</span> <span class="nv">D</span><span class="p">)</span>
 <span class="p">(</span><span class="nv">B</span> <span class="nv">C</span> <span class="nv">A</span> <span class="nv">D</span><span class="p">)</span>
 </pre></div>