anx.framework/lib/nant-0.91/doc/help/functions/environment.variable-exists(System.String).html
Glatzemann 39dc83d33e added NAnt 0.91 build system to the lib folder
added build folder
added build script for release build of ANX.Framework and all RenderSystems
fixed some issues in projects regarding compiler directives
removed StockShaderCodeGenerator from Pre-Build-Events. Build the Stock shaders using NAnt target build_stock_shaders.
started Wiki documentation for custom build switches (e.g. extended mode)
2011-11-18 11:04:26 +00:00

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<title>environment::variable-exists Function</title>
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<h1>environment::variable-exists</h1>
<p> Gets a value indicating whether the specified environment variable exists. </p>
<h3>Usage</h3>
<code>bool environment::variable-exists(<span class="parameter">name</span>)
</code>
<p />
<h3>Parameters</h3>
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<th>Name</th>
<th>Type</th>
<th>Description</th>
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<td>name</td>
<td>string</td>
<td>The environment variable that should be checked.</td>
</tr>
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<h3>Return Value</h3>
<b>true</b> if the environment variable exists; otherwise, <b>false</b>. <h3>Examples</h3><ul class="examples"><li><p> Execute a set of tasks only if the "BUILD_DEBUG" environment variable is set. </p><pre class="code">
&lt;if test="${environment::variable-exists('BUILD_DEBUG')}"&gt;
...
&lt;/if&gt;
</pre></li></ul><h3>Requirements</h3><div style="margin-left: 20px;"><b>Assembly:</b> NAnt.Core (0.91.4312.0)
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