--- /dev/null
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Interface implemented by lexer classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated since 1.12 (to be removed in 3.0)
+ */
+interface Twig_LexerInterface
+{
+ /**
+ * Tokenizes a source code.
+ *
+ * @param string|Twig_Source $code The source code
+ * @param string $name A unique identifier for the source code
+ *
+ * @return Twig_TokenStream
+ *
+ * @throws Twig_Error_Syntax When the code is syntactically wrong
+ */
+ public function tokenize($code, $name = null);
+}