M000480.html in facets-0.7.2

- old
+ new
@@ -3,16 +3,24 @@
      PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
 <html>
 <head>
-  <title>sum (Lisp)</title>
+  <title>member? (Lisp)</title>
   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
   <link rel="stylesheet" href="../.././rdoc-style.css" type="text/css" media="screen" />
 </head>
 <body class="standalone-code">
-  <pre><span class="ruby-comment cmt"># File lib/facet/lisp.rb, line 322</span>
-  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">sum</span>(<span class="ruby-identifier">list</span>)
-    <span class="ruby-identifier">accumulate</span>(<span class="ruby-identifier">lambda</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">x</span>, <span class="ruby-identifier">y</span><span class="ruby-operator">|</span> <span class="ruby-identifier">x</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">y</span> }, <span class="ruby-value">0</span>, <span class="ruby-identifier">list</span>)
+  <pre><span class="ruby-comment cmt"># File lib/facet/lisp.rb, line 237</span>
+  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">member?</span>(<span class="ruby-identifier">x</span>, <span class="ruby-identifier">list</span>)
+    <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">null?</span>(<span class="ruby-identifier">list</span>)
+      <span class="ruby-keyword kw">false</span>
+    <span class="ruby-keyword kw">else</span>
+      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">x</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">car</span>(<span class="ruby-identifier">list</span>)
+        <span class="ruby-keyword kw">true</span>
+      <span class="ruby-keyword kw">else</span>
+        <span class="ruby-identifier">member?</span>(<span class="ruby-identifier">x</span>, <span class="ruby-identifier">cdr</span>(<span class="ruby-identifier">list</span>))
+      <span class="ruby-keyword kw">end</span>
+    <span class="ruby-keyword kw">end</span>
   <span class="ruby-keyword kw">end</span></pre>
 </body>
 </html>
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