<ul dir="auto">
<li>VSCode Version: 1.0.0</li>
<li>OS Version: Linux</li>
</ul>
<p dir="auto">Steps to Reproduce:</p>
<ol dir="auto">
<li>Smoke test (clone <a href="https://monacotools.visualstudio.com/DefaultCollection/Samples/_git/vscode-smoketest-express" rel="nofollow">https://monacotools.visualstudio.com/DefaultCollection/Samples/_git/vscode-smoketest-express</a>)</li>
<li>open bin/www</li>
<li>Show quick outline. Note that several entries are duplicated<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/6461412/14497738/197eff32-0198-11e6-93c8-173dca8eb027.png"><img src="https://cloud.githubusercontent.com/assets/6461412/14497738/197eff32-0198-11e6-93c8-173dca8eb027.png" alt="image" style="max-width: 100%;"></a></li>
</ol>
<p dir="auto">As far as I can tell, extensions can set a <code class="notranslate">LanguageConfiguration</code> object for a language with <code class="notranslate">languages.setLanguageConfiguration()</code>, but they can't get an existing one. This would be very useful for getting information about the language of the current document.</p>