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-rw-r--r--lib/less.php/VisitorReplacing.php75
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/less.php/VisitorReplacing.php b/lib/less.php/VisitorReplacing.php
new file mode 100644
index 0000000..5923170
--- /dev/null
+++ b/lib/less.php/VisitorReplacing.php
@@ -0,0 +1,75 @@
+<?php
+
+/**
+ * Replacing Visitor
+ *
+ * @package Less
+ * @subpackage visitor
+ */
+class Less_VisitorReplacing extends Less_Visitor{
+
+ public function visitObj( $node ){
+
+ $funcName = 'visit'.$node->type;
+ if( isset($this->_visitFnCache[$funcName]) ){
+
+ $visitDeeper = true;
+ $node = $this->$funcName( $node, $visitDeeper );
+
+ if( $node ){
+ if( $visitDeeper && is_object($node) ){
+ $node->accept($this);
+ }
+
+ $funcName = $funcName . "Out";
+ if( isset($this->_visitFnCache[$funcName]) ){
+ $this->$funcName( $node );
+ }
+ }
+
+ }else{
+ $node->accept($this);
+ }
+
+ return $node;
+ }
+
+ public function visitArray( $nodes ){
+
+ $newNodes = array();
+ foreach($nodes as $node){
+ $evald = $this->visitObj($node);
+ if( $evald ){
+ if( is_array($evald) ){
+ self::flatten($evald,$newNodes);
+ }else{
+ $newNodes[] = $evald;
+ }
+ }
+ }
+ return $newNodes;
+ }
+
+ public function flatten( $arr, &$out ){
+
+ foreach($arr as $item){
+ if( !is_array($item) ){
+ $out[] = $item;
+ continue;
+ }
+
+ foreach($item as $nestedItem){
+ if( is_array($nestedItem) ){
+ self::flatten( $nestedItem, $out);
+ }else{
+ $out[] = $nestedItem;
+ }
+ }
+ }
+
+ return $out;
+ }
+
+}
+
+