lib/lessphp/VisitorReplacing.php

   1 <?php
   2
   3 /**
   4  * Replacing Visitor
   5  *
   6  * @package Less
   7  * @subpackage visitor
   8  */
   9 class Less_VisitorReplacing extends Less_Visitor{
  10
  11         function visitObj( $node ){
  12
  13                 $funcName = 'visit'.$node->type;
  14                 if( isset($this->_visitFnCache[$funcName]) ){
  15
  16                         $visitDeeper = true;
  17                         $node = $this->$funcName( $node, $visitDeeper );
  18
  19                         if( $node ){
  20                                 if( $visitDeeper && is_object($node) ){
  21                                         $node->accept($this);
  22                                 }
  23
  24                                 $funcName = $funcName . "Out";
  25                                 if( isset($this->_visitFnCache[$funcName]) ){
  26                                         $this->$funcName( $node );
  27                                 }
  28                         }
  29
  30                 }else{
  31                         $node->accept($this);
  32                 }
  33
  34                 return $node;
  35         }
  36
  37         function visitArray( $nodes ){
  38
  39                 $newNodes = array();
  40                 foreach($nodes as $node){
  41                         $evald = $this->visitObj($node);
  42                         if( $evald ){
  43                                 if( is_array($evald) ){
  44                                         self::flatten($evald,$newNodes);
  45                                 }else{
  46                                         $newNodes[] = $evald;
  47                                 }
  48                         }
  49                 }
  50                 return $newNodes;
  51         }
  52
  53         function flatten( $arr, &$out ){
  54
  55                 foreach($arr as $item){
  56                         if( !is_array($item) ){
  57                                 $out[] = $item;
  58                                 continue;
  59                         }
  60
  61                         foreach($item as $nestedItem){
  62                                 if( is_array($nestedItem) ){
  63                                         self::flatten( $nestedItem, $out);
  64                                 }else{
  65                                         $out[] = $nestedItem;
  66                                 }
  67                         }
  68                 }
  69
  70                 return $out;
  71         }
  72
  73 }
  74
  75