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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Class: Rack::Directory</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<link rel="stylesheet" href="../.././rdoc-style.css" type="text/css" media="screen" />
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</head>
<body>
<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">Rack::Directory</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/lib/rack/directory_rb.html">
lib/rack/directory.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
Object
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
<a href="Directory.html">Rack::Directory</a> serves entries below the
<tt>root</tt> given, according to the path info of the <a
href="../Rack.html">Rack</a> request. If a directory is found, the
file&#8216;s contents will be presented in an html based index. If a file
is found, the env will be passed to the specified <tt>app</tt>.
</p>
<p>
If <tt>app</tt> is not specified, a <a href="File.html">Rack::File</a> of
the same <tt>root</tt> will be used.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000137">_call</a>&nbsp;&nbsp;
<a href="#M000136">call</a>&nbsp;&nbsp;
<a href="#M000138">check_forbidden</a>&nbsp;&nbsp;
<a href="#M000143">each</a>&nbsp;&nbsp;
<a href="#M000142">entity_not_found</a>&nbsp;&nbsp;
<a href="#M000144">filesize_format</a>&nbsp;&nbsp;
<a href="#M000139">list_directory</a>&nbsp;&nbsp;
<a href="#M000141">list_path</a>&nbsp;&nbsp;
<a href="#M000135">new</a>&nbsp;&nbsp;
<a href="#M000140">stat</a>&nbsp;&nbsp;
</div>
</div>
</div>
<!-- if includes -->
<div id="section">
<div id="constants-list">
<h3 class="section-bar">Constants</h3>
<div class="name-list">
<table summary="Constants">
<tr class="top-aligned-row context-row">
<td class="context-item-name">DIR_FILE</td>
<td>=</td>
<td class="context-item-value">&quot;&lt;tr&gt;&lt;td class='name'&gt;&lt;a href='%s'&gt;%s&lt;/a&gt;&lt;/td&gt;&lt;td class='size'&gt;%s&lt;/td&gt;&lt;td class='type'&gt;%s&lt;/td&gt;&lt;td class='mtime'&gt;%s&lt;/td&gt;&lt;/tr&gt;&quot;</td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">DIR_PAGE</td>
<td>=</td>
<td class="context-item-value">&lt;&lt;-PAGE &lt;html&gt;&lt;head&gt; &lt;title&gt;%s&lt;/title&gt; &lt;meta http-equiv=&quot;content-type&quot; content=&quot;text/html; charset=utf-8&quot; /&gt; &lt;style type='text/css'&gt; table { width:100%%; } .name { text-align:left; } .size, .mtime { text-align:right; } .type { width:11em; } .mtime { width:15em; } &lt;/style&gt; &lt;/head&gt;&lt;body&gt; &lt;h1&gt;%s&lt;/h1&gt; &lt;hr /&gt; &lt;table&gt; &lt;tr&gt; &lt;th class='name'&gt;Name&lt;/th&gt; &lt;th class='size'&gt;Size&lt;/th&gt; &lt;th class='type'&gt;Type&lt;/th&gt; &lt;th class='mtime'&gt;Last Modified&lt;/th&gt; &lt;/tr&gt; %s &lt;/table&gt; &lt;hr /&gt; &lt;/body&gt;&lt;/html&gt; PAGE</td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">F</td>
<td>=</td>
<td class="context-item-value">::File</td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">FILESIZE_FORMAT</td>
<td>=</td>
<td class="context-item-value">[ ['%.1fT', 1 &lt;&lt; 40], ['%.1fG', 1 &lt;&lt; 30], ['%.1fM', 1 &lt;&lt; 20], ['%.1fK', 1 &lt;&lt; 10], ]</td>
<td width="3em">&nbsp;</td>
<td class="context-item-desc">
Stolen from Ramaze
</td>
</tr>
</table>
</div>
</div>
<div id="attribute-list">
<h3 class="section-bar">Attributes</h3>
<div class="name-list">
<table>
<tr class="top-aligned-row context-row">
<td class="context-item-name">files</td>
<td class="context-item-value">&nbsp;[R]&nbsp;</td>
<td class="context-item-desc"></td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">path</td>
<td class="context-item-value">&nbsp;[RW]&nbsp;</td>
<td class="context-item-desc"></td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">root</td>
<td class="context-item-value">&nbsp;[RW]&nbsp;</td>
<td class="context-item-desc"></td>
</tr>
</table>
</div>
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000135" class="method-detail">
<a name="M000135"></a>
<div class="method-heading">
<a href="#M000135" class="method-signature">
<span class="method-name">new</span><span class="method-args">(root, app=nil)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000135-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000135-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 45</span>
45: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">root</span>, <span class="ruby-identifier">app</span>=<span class="ruby-keyword kw">nil</span>)
46: <span class="ruby-ivar">@root</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">expand_path</span>(<span class="ruby-identifier">root</span>)
47: <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span> <span class="ruby-operator">||</span> <span class="ruby-constant">Rack</span><span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@root</span>)
48: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000137" class="method-detail">
<a name="M000137"></a>
<div class="method-heading">
<a href="#M000137" class="method-signature">
<span class="method-name">_call</span><span class="method-args">(env)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000137-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000137-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 56</span>
56: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">_call</span>(<span class="ruby-identifier">env</span>)
57: <span class="ruby-ivar">@env</span> = <span class="ruby-identifier">env</span>
58: <span class="ruby-ivar">@script_name</span> = <span class="ruby-identifier">env</span>[<span class="ruby-value str">'SCRIPT_NAME'</span>]
59: <span class="ruby-ivar">@path_info</span> = <span class="ruby-constant">Utils</span>.<span class="ruby-identifier">unescape</span>(<span class="ruby-identifier">env</span>[<span class="ruby-value str">'PATH_INFO'</span>])
60:
61: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">forbidden</span> = <span class="ruby-identifier">check_forbidden</span>
62: <span class="ruby-identifier">forbidden</span>
63: <span class="ruby-keyword kw">else</span>
64: <span class="ruby-ivar">@path</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">join</span>(<span class="ruby-ivar">@root</span>, <span class="ruby-ivar">@path_info</span>)
65: <span class="ruby-identifier">list_path</span>
66: <span class="ruby-keyword kw">end</span>
67: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000136" class="method-detail">
<a name="M000136"></a>
<div class="method-heading">
<a href="#M000136" class="method-signature">
<span class="method-name">call</span><span class="method-args">(env)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000136-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000136-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 50</span>
50: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>)
51: <span class="ruby-identifier">dup</span>.<span class="ruby-identifier">_call</span>(<span class="ruby-identifier">env</span>)
52: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000138" class="method-detail">
<a name="M000138"></a>
<div class="method-heading">
<a href="#M000138" class="method-signature">
<span class="method-name">check_forbidden</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000138-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000138-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 69</span>
69: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">check_forbidden</span>
70: <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-ivar">@path_info</span>.<span class="ruby-identifier">include?</span> <span class="ruby-value str">&quot;..&quot;</span>
71:
72: <span class="ruby-identifier">body</span> = <span class="ruby-value str">&quot;Forbidden\n&quot;</span>
73: <span class="ruby-identifier">size</span> = <span class="ruby-identifier">body</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:bytesize</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">size</span>
74: <span class="ruby-keyword kw">return</span> [<span class="ruby-value">403</span>, {<span class="ruby-value str">&quot;Content-Type&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;text/plain&quot;</span>,<span class="ruby-value str">&quot;Content-Length&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">size</span>.<span class="ruby-identifier">to_s</span>}, [<span class="ruby-identifier">body</span>]]
75: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000143" class="method-detail">
<a name="M000143"></a>
<div class="method-heading">
<a href="#M000143" class="method-signature">
<span class="method-name">each</span><span class="method-args">() {|l| ...}</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000143-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000143-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 127</span>
127: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">each</span>
128: <span class="ruby-identifier">show_path</span> = <span class="ruby-ivar">@path</span>.<span class="ruby-identifier">sub</span>(<span class="ruby-node">/^#{@root}/</span>,<span class="ruby-value str">''</span>)
129: <span class="ruby-identifier">files</span> = <span class="ruby-ivar">@files</span>.<span class="ruby-identifier">map</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-constant">DIR_FILE</span> <span class="ruby-operator">%</span> <span class="ruby-identifier">f</span> }<span class="ruby-operator">*</span><span class="ruby-value str">&quot;\n&quot;</span>
130: <span class="ruby-identifier">page</span> = <span class="ruby-constant">DIR_PAGE</span> <span class="ruby-operator">%</span> [ <span class="ruby-identifier">show_path</span>, <span class="ruby-identifier">show_path</span> , <span class="ruby-identifier">files</span> ]
131: <span class="ruby-identifier">page</span>.<span class="ruby-identifier">each_line</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">l</span><span class="ruby-operator">|</span> <span class="ruby-keyword kw">yield</span> <span class="ruby-identifier">l</span> }
132: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000142" class="method-detail">
<a name="M000142"></a>
<div class="method-heading">
<a href="#M000142" class="method-signature">
<span class="method-name">entity_not_found</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000142-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000142-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 121</span>
121: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">entity_not_found</span>
122: <span class="ruby-identifier">body</span> = <span class="ruby-node">&quot;Entity not found: #{@path_info}\n&quot;</span>
123: <span class="ruby-identifier">size</span> = <span class="ruby-identifier">body</span>.<span class="ruby-identifier">respond_to?</span>(<span class="ruby-identifier">:bytesize</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">size</span>
124: <span class="ruby-keyword kw">return</span> [<span class="ruby-value">404</span>, {<span class="ruby-value str">&quot;Content-Type&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-value str">&quot;text/plain&quot;</span>, <span class="ruby-value str">&quot;Content-Length&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">size</span>.<span class="ruby-identifier">to_s</span>}, [<span class="ruby-identifier">body</span>]]
125: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000144" class="method-detail">
<a name="M000144"></a>
<div class="method-heading">
<a href="#M000144" class="method-signature">
<span class="method-name">filesize_format</span><span class="method-args">(int)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000144-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000144-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 143</span>
143: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">filesize_format</span>(<span class="ruby-identifier">int</span>)
144: <span class="ruby-constant">FILESIZE_FORMAT</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">format</span>, <span class="ruby-identifier">size</span><span class="ruby-operator">|</span>
145: <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">format</span> <span class="ruby-operator">%</span> (<span class="ruby-identifier">int</span>.<span class="ruby-identifier">to_f</span> <span class="ruby-operator">/</span> <span class="ruby-identifier">size</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">int</span> <span class="ruby-operator">&gt;=</span> <span class="ruby-identifier">size</span>
146: <span class="ruby-keyword kw">end</span>
147:
148: <span class="ruby-identifier">int</span>.<span class="ruby-identifier">to_s</span> <span class="ruby-operator">+</span> <span class="ruby-value str">'B'</span>
149: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000139" class="method-detail">
<a name="M000139"></a>
<div class="method-heading">
<a href="#M000139" class="method-signature">
<span class="method-name">list_directory</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000139-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000139-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 77</span>
77: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">list_directory</span>
78: <span class="ruby-ivar">@files</span> = [[<span class="ruby-value str">'../'</span>,<span class="ruby-value str">'Parent Directory'</span>,<span class="ruby-value str">''</span>,<span class="ruby-value str">''</span>,<span class="ruby-value str">''</span>]]
79: <span class="ruby-identifier">glob</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">join</span>(<span class="ruby-ivar">@path</span>, <span class="ruby-value str">'*'</span>)
80:
81: <span class="ruby-constant">Dir</span>[<span class="ruby-identifier">glob</span>].<span class="ruby-identifier">sort</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span>
82: <span class="ruby-identifier">stat</span> = <span class="ruby-identifier">stat</span>(<span class="ruby-identifier">node</span>)
83: <span class="ruby-keyword kw">next</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">stat</span>
84: <span class="ruby-identifier">basename</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">basename</span>(<span class="ruby-identifier">node</span>)
85: <span class="ruby-identifier">ext</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">extname</span>(<span class="ruby-identifier">node</span>)
86:
87: <span class="ruby-identifier">url</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">join</span>(<span class="ruby-ivar">@script_name</span>, <span class="ruby-ivar">@path_info</span>, <span class="ruby-identifier">basename</span>)
88: <span class="ruby-identifier">size</span> = <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">size</span>
89: <span class="ruby-identifier">type</span> = <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">directory?</span> <span class="ruby-value">? </span><span class="ruby-value str">'directory'</span> <span class="ruby-operator">:</span> <span class="ruby-constant">Mime</span>.<span class="ruby-identifier">mime_type</span>(<span class="ruby-identifier">ext</span>)
90: <span class="ruby-identifier">size</span> = <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">directory?</span> <span class="ruby-value">? </span><span class="ruby-value str">'-'</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">filesize_format</span>(<span class="ruby-identifier">size</span>)
91: <span class="ruby-identifier">mtime</span> = <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">mtime</span>.<span class="ruby-identifier">httpdate</span>
92:
93: <span class="ruby-ivar">@files</span> <span class="ruby-operator">&lt;&lt;</span> [ <span class="ruby-identifier">url</span>, <span class="ruby-identifier">basename</span>, <span class="ruby-identifier">size</span>, <span class="ruby-identifier">type</span>, <span class="ruby-identifier">mtime</span> ]
94: <span class="ruby-keyword kw">end</span>
95:
96: <span class="ruby-keyword kw">return</span> [ <span class="ruby-value">200</span>, {<span class="ruby-value str">'Content-Type'</span>=<span class="ruby-operator">&gt;</span><span class="ruby-value str">'text/html; charset=utf-8'</span>}, <span class="ruby-keyword kw">self</span> ]
97: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000141" class="method-detail">
<a name="M000141"></a>
<div class="method-heading">
<a href="#M000141" class="method-signature">
<span class="method-name">list_path</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
TODO: add correct response if not readable, not sure if 404 is the best
</p>
<pre>
option
</pre>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000141-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000141-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 107</span>
107: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">list_path</span>
108: <span class="ruby-ivar">@stat</span> = <span class="ruby-constant">F</span>.<span class="ruby-identifier">stat</span>(<span class="ruby-ivar">@path</span>)
109:
110: <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@stat</span>.<span class="ruby-identifier">readable?</span>
111: <span class="ruby-keyword kw">return</span> <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-ivar">@env</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@stat</span>.<span class="ruby-identifier">file?</span>
112: <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">list_directory</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@stat</span>.<span class="ruby-identifier">directory?</span>
113: <span class="ruby-keyword kw">else</span>
114: <span class="ruby-identifier">raise</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>, <span class="ruby-value str">'No such file or directory'</span>
115: <span class="ruby-keyword kw">end</span>
116:
117: <span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>, <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ELOOP</span>
118: <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">entity_not_found</span>
119: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000140" class="method-detail">
<a name="M000140"></a>
<div class="method-heading">
<a href="#M000140" class="method-signature">
<span class="method-name">stat</span><span class="method-args">(node, max = 10)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000140-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000140-source">
<pre>
<span class="ruby-comment cmt"># File lib/rack/directory.rb, line 99</span>
99: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">stat</span>(<span class="ruby-identifier">node</span>, <span class="ruby-identifier">max</span> = <span class="ruby-value">10</span>)
100: <span class="ruby-constant">F</span>.<span class="ruby-identifier">stat</span>(<span class="ruby-identifier">node</span>)
101: <span class="ruby-keyword kw">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>, <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ELOOP</span>
102: <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">nil</span>
103: <span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
</div>
</div>
<div id="validator-badges">
<p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
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