--- /dev/null
+<?php
+
+/*
+ * This file is part of the Behat.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Behat\Definition\Context\Annotation;
+
+use Behat\Behat\Context\Annotation\AnnotationReader;
+use ReflectionMethod;
+
+/**
+ * Reads definition annotations from the context class.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+final class DefinitionAnnotationReader implements AnnotationReader
+{
+ /**
+ * @var string
+ */
+ private static $regex = '/^\@(given|when|then)\s+(.+)$/i';
+ /**
+ * @var string[]
+ */
+ private static $classes = array(
+ 'given' => 'Behat\Behat\Definition\Call\Given',
+ 'when' => 'Behat\Behat\Definition\Call\When',
+ 'then' => 'Behat\Behat\Definition\Call\Then',
+ );
+
+ /**
+ * {@inheritdoc}
+ */
+ public function readCallee($contextClass, ReflectionMethod $method, $docLine, $description)
+ {
+ if (!preg_match(self::$regex, $docLine, $match)) {
+ return null;
+ }
+
+ $type = strtolower($match[1]);
+ $class = self::$classes[$type];
+ $pattern = $match[2];
+ $callable = array($contextClass, $method->getName());
+
+ return new $class($pattern, $callable, $description);
+ }
+}