doc/epl/index.php

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		<h1 class="page-header">Epsilon Pattern Language</h1>

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				<p>EPL is a pattern matching language built on top of EOL. EPL provides facilities for performing mattern matching on a model and produces a match model than can be used with the other Epsilon langauges in order to query, evaluate, tranform, etc. the found matches. A common scenario is to use the pattern matches as input for model transformations. </p>
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		<h3>Features</h3>
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				<ul>
					<li>Match elements from one or many models
					<li>Ability to query/navigate the source models
					<li>Declarative patterns with imperative bodies
					<li>Automated pattern execution
                    <li>Filtering of pattern roles
                    <li>Support for negative, optional and active roles
					<li>Guarded patterns
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		<h3>Examples and Screencasts</h3>
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                  <li><a href="../../examples/index.php?example=org.eclipse.epsilon.examples.epl">Find pattern matches in railway models using EPL</a>
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		<h3>Reference</h3>
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				<p>Chapter 11 of the <a href="../book">Epsilon book</a> provides a complete reference of the syntax and semantics of EPL.</p>
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