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<title>Class: ColorFilter</title>
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<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">ColorFilter</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../files/lib/network/protocol/colorfilter_rb.html">
lib/network/protocol/colorfilter.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
<a href="Filter.html">
Filter
</a>
</td>
</tr>
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<map id="map" name="map">
<area shape="rect" coords="5,101,88,149" href="ColorFilter.html" alt="ColorFilter
" />
<area shape="rect" coords="11,5,83,53" href="Filter.html" alt="Filter
" />
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<img src="../dot/f_31.png" usemap="#map" border="0" alt="dot/f_31.png">
</div>
<div id="description">
<p>
The <a href="ColorFilter.html">ColorFilter</a> class implements ANSI color
(SGR) support.
</p>
<p>
A <a href="Filter.html">Filter</a> can keep state and partial data
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000241">filter_out</a>
</div>
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<div id="methods">
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000241" class="method-detail">
<a name="M000241"></a>
<div class="method-heading">
<a href="#M000241" class="method-signature">
<span class="method-name">filter_out</span><span class="method-args">(str)</span>
</a>
</div>
<div class="method-description">
<p>
The <a href="ColorFilter.html#M000241">filter_out</a> method filters output
data
</p>
<dl>
<dt><tt>str</tt></dt><dd>The string to be processed
</dd>
<dt><tt>return</tt></dt><dd>The filtered data
</dd>
</dl>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000241-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000241-source">
<pre>
<span class="ruby-comment cmt"># File lib/network/protocol/colorfilter.rb, line 28</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">filter_out</span>(<span class="ruby-identifier">str</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-value str">""</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">str</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">str</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@pstack</span>.<span class="ruby-identifier">color_on</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[COLOR\s+(\w+)\s+ON\s+(\w+)\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$1</span>] <span class="ruby-operator">&&</span> <span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$2</span>]
<span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$1</span>][<span class="ruby-value">2</span>]<span class="ruby-operator">+</span><span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$2</span>][<span class="ruby-value">3</span>]
<span class="ruby-keyword kw">else</span>
<span class="ruby-value str">''</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[COLOR\s+(\w+)\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$1</span>]
<span class="ruby-constant">ColorTable</span>[<span class="ruby-identifier">$1</span>][<span class="ruby-value">2</span>]
<span class="ruby-keyword kw">else</span>
<span class="ruby-value str">''</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[\/COLOR\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-constant">ANSICODE</span>[<span class="ruby-value str">'reset'</span>]
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[[BI]\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-constant">ANSICODE</span>[<span class="ruby-value str">'bold'</span>]
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[U\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-constant">ANSICODE</span>[<span class="ruby-value str">'underline'</span>]
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[\/[BUI]\]/</span><span class="ruby-identifier">mi</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span>
<span class="ruby-constant">ANSICODE</span>[<span class="ruby-value str">'reset'</span>]
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[COLOR\s+(\w+)\s+ON\s+(\w+)\]/</span><span class="ruby-identifier">mi</span>,<span class="ruby-value str">''</span>)
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[COLOR\s+(\w+)\]|\[\/COLOR\]/</span><span class="ruby-identifier">mi</span>, <span class="ruby-value str">''</span>)
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[SIZE .*?\]|\[\/SIZE\]/</span><span class="ruby-identifier">mi</span>, <span class="ruby-value str">''</span>)
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[FONT .*?\]|\[\/FONT\]/</span><span class="ruby-identifier">mi</span>, <span class="ruby-value str">''</span>)
<span class="ruby-identifier">str</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/\[[BUI]\]|\[\/[BUI]\]/</span><span class="ruby-identifier">mi</span>, <span class="ruby-value str">''</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">str</span>
<span class="ruby-keyword kw">end</span>
</pre>
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