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<title>Class: LineIO</title>
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<td><strong>Class</strong></td>
<td class="class-name-in-header">LineIO</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../files/lib/network/lineio_rb.html">
lib/network/lineio.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
<a href="SockIO.html">
SockIO
</a>
</td>
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<div id="description">
<p>
The <a href="LineIO.html">LineIO</a> class implements a line-orient
interface for TCP sockets. It‘s a specialization of sockio. This
class is intended for line-oriented protocols.
</p>
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<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000200">new</a>
<a href="#M000201">read</a>
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<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000200" class="method-detail">
<a name="M000200"></a>
<div class="method-heading">
<a href="#M000200" class="method-signature">
<span class="method-name">new</span><span class="method-args">(sock, bufsize=8192)</span>
</a>
</div>
<div class="method-description">
<p>
Creates a <a href="LineIO.html#M000200">new</a> <a
href="LineIO.html">LineIO</a> object
</p>
<dl>
<dt><tt>sock</tt></dt><dd>The socket which will be used
</dd>
<dt><tt>bufsize</tt></dt><dd>The size of the buffer to use (default is 8192)
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000200-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000200-source">
<pre>
<span class="ruby-comment cmt"># File lib/network/lineio.rb, line 27</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">sock</span>, <span class="ruby-identifier">bufsize</span>=<span class="ruby-value">8192</span>)
<span class="ruby-keyword kw">super</span>(<span class="ruby-identifier">sock</span>,<span class="ruby-identifier">bufsize</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000201" class="method-detail">
<a name="M000201"></a>
<div class="method-heading">
<a href="#M000201" class="method-signature">
<span class="method-name">read</span><span class="method-args">()</span>
</a>
</div>
<div class="method-description">
<p>
<a href="LineIO.html#M000201">read</a> will receive a set of lines from the
socket. A line may be terminated by CRLF, CRNUL, LFCR, CR, or LF. Not yet
terminated lines are left in the @inbuffer.
</p>
<dl>
<dt><tt>return</tt></dt><dd>One or more complete lines or nil.
</dd>
<dt><tt>IOError</tt></dt><dd>A sockets error occurred.
</dd>
<dt><tt>EOFError</tt></dt><dd>The connection has closed normally.
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000201-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000201-source">
<pre>
<span class="ruby-comment cmt"># File lib/network/lineio.rb, line 38</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">read</span>
<span class="ruby-ivar">@inbuffer</span> <span class="ruby-operator"><<</span> <span class="ruby-ivar">@sock</span>.<span class="ruby-identifier">recv</span>(<span class="ruby-ivar">@bufsize</span>)
<span class="ruby-ivar">@inbuffer</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\r\n|\r\x00|\n\r|\r|\n/</span>,<span class="ruby-value str">"\n"</span>)
<span class="ruby-identifier">pos</span> = <span class="ruby-ivar">@inbuffer</span>.<span class="ruby-identifier">rindex</span>(<span class="ruby-value str">"\n"</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">pos</span>
<span class="ruby-identifier">ln</span> = <span class="ruby-ivar">@inbuffer</span>.<span class="ruby-identifier">slice!</span>(<span class="ruby-value">0</span><span class="ruby-operator">..</span><span class="ruby-identifier">pos</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">ln</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">nil</span>
<span class="ruby-keyword kw">end</span>
</pre>
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