removed IDibiVariable & DibiVariable, replaced with DibiLiteral

dibi/libs/DibiLiteral.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * This file is part of the "dibi" - smart database abstraction layer.
+ *
+ * Copyright (c) 2005 David Grudl (http://davidgrudl.com)
+ *
+ * For the full copyright and license information, please view
+ * the file license.txt that was distributed with this source code.
+ */
+
+
+
+/**
+ * SQL literal value.
+ *
+ * @author     David Grudl
+ */
+class DibiLiteral extends DibiObject
+{
+	/** @var string */
+	private $value;
+
+
+	public function __construct($value)
+	{
+		$this->value = (string) $value;
+	}
+
+
+
+	/**
+	 * @return string
+	 */
+	public function __toString()
+	{
+		return $this->value;
+	}
+
+}