added @namespace rule support

Author: goetas

lib/Sabberworm/CSS/Property/CssNamespace.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Sabberworm\CSS\Property;
+
+/**
+* Class representing an @namespace rule.
+*/
+class CssNamespace {
+	private $sValue;
+	private $sPrefix;
+	
+	public function __construct($sValue, $sPrefix = null) {
+		$this->sValue = $sValue;
+		$this->sPrefix = $sPrefix;		
+	}
+	
+	public function __toString() {
+		return '@namespace '.$this->sPrefix.' "'.$this->sValue.'";';
+	}
+	
+	public function getValue() {
+		return $this->sValue;
+	}
+
+	public function getPrefix() {
+		return $this->sPrefix;
+	}
+
+	public function setValue($sValue) {
+		$this->sValue = $sValue;
+	}
+
+	public function setPrefix($sPrefix) {
+		$this->sPrefix = $sPrefix;
+	}
+
+}