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mpeterv
2014-03-09 15:04:08 +04:00
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@@ -55,6 +55,8 @@
<li><a href="#setting-number-of-invocations">Setting number of invocations</a></li>
</ul>
</li>
<li><a href="#mutually-exclusive-groups">Mutually exclusive groups</a></li>
<li>
<a href="#commands">Commands</a>
@@ -408,6 +410,27 @@ optional {}
<pre><code>verbosity 2
</code></pre>
<h2>
<a name="mutually-exclusive-groups" class="anchor" href="#mutually-exclusive-groups"><span class="octicon octicon-link"></span></a>Mutually exclusive groups</h2>
<p>A group of options can be marked as mutually exclusive using <code>:mutex()</code> method of the Parser class. </p>
<div class="highlight highlight-lua"><pre><span class="n">parser</span><span class="p">:</span><span class="n">mutex</span><span class="p">(</span>
<span class="n">parser</span><span class="p">:</span><span class="n">flag</span> <span class="s2">"</span><span class="s">-q"</span> <span class="s2">"</span><span class="s">--quiet"</span><span class="p">,</span>
<span class="n">parser</span><span class="p">:</span><span class="n">flag</span> <span class="s2">"</span><span class="s">-v"</span> <span class="s2">"</span><span class="s">--verbose"</span>
<span class="p">)</span>
</pre></div>
<p>If more than one element of a mutually exclusive group is used, an error is raised. </p>
<div class="highlight highlight-bash"><pre><span class="nv">$ </span>lua script.lua -qv
</pre></div>
<pre><code>Usage: script.lua ([-q] | [-v]) [-h]
Error: option '-v' can not be used together with option '-q'
</code></pre>
<h2>
<a name="commands" class="anchor" href="#commands"><span class="octicon octicon-link"></span></a>Commands</h2>