--- /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\Transformation;
+
+/**
+ * Regular expression generator.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+interface RegexGenerator
+{
+ /**
+ * Generates regular expression using provided parameters.
+ *
+ * @param string $suiteName
+ * @param string $pattern
+ * @param string $language
+ *
+ * @return string
+ */
+ public function generateRegex($suiteName, $pattern, $language);
+}