1 files changed, 49 insertions, 0 deletions
diff --git a/lib/less.php/Visitor.php b/lib/less.php/Visitor.php
new file mode 100644
index 0000000..d85f1d9
--- /dev/null
+++ b/lib/less.php/Visitor.php
@@ -0,0 +1,49 @@
+<?php
+
+/**
+ * Visitor
+ *
+ * @package Less
+ * @subpackage visitor
+ */
+class Less_Visitor{
+
+	protected $methods = array();
+	protected $_visitFnCache = array();
+
+	public function __construct(){
+		$this->_visitFnCache = get_class_methods(get_class($this));
+		$this->_visitFnCache = array_flip($this->_visitFnCache);
+	}
+
+	public function visitObj( $node ){
+
+		$funcName = 'visit'.$node->type;
+		if( isset($this->_visitFnCache[$funcName]) ){
+
+			$visitDeeper = true;
+			$this->$funcName( $node, $visitDeeper );
+
+			if( $visitDeeper ){
+				$node->accept($this);
+			}
+
+			$funcName = $funcName . "Out";
+			if( isset($this->_visitFnCache[$funcName]) ){
+				$this->$funcName( $node );
+			}
+
+		}else{
+			$node->accept($this);
+		}
+
+		return $node;
+	}
+
+	public function visitArray( $nodes ){
+
+		array_map( array($this,'visitObj'), $nodes);
+		return $nodes;
+	}
+}
+