lib/lessphp/Tree/Rule.php

   1 <?php
   2
   3 /**
   4  * Rule
   5  *
   6  * @package Less
   7  * @subpackage tree
   8  */
   9 class Less_Tree_Rule extends Less_Tree{
  10
  11         public $name;
  12         public $value;
  13         public $important;
  14         public $merge;
  15         public $index;
  16         public $inline;
  17         public $variable;
  18         public $currentFileInfo;
  19         public $type = 'Rule';
  20
  21         /**
  22          * @param string $important
  23          */
  24         public function __construct($name, $value = null, $important = null, $merge = null, $index = null, $currentFileInfo = null,  $inline = false){
  25                 $this->name = $name;
  26                 $this->value = ($value instanceof Less_Tree_Value || $value instanceof Less_Tree_Ruleset) ? $value : new Less_Tree_Value(array($value));
  27                 $this->important = $important ? ' ' . trim($important) : '';
  28                 $this->merge = $merge;
  29                 $this->index = $index;
  30                 $this->currentFileInfo = $currentFileInfo;
  31                 $this->inline = $inline;
  32                 $this->variable = ( is_string($name) && $name[0] === '@');
  33         }
  34
  35         function accept($visitor) {
  36                 $this->value = $visitor->visitObj( $this->value );
  37         }
  38
  39     /**
  40      * @see Less_Tree::genCSS
  41      */
  42         function genCSS( $output ){
  43
  44                 $output->add( $this->name . Less_Environment::$_outputMap[': '], $this->currentFileInfo, $this->index);
  45                 try{
  46                         $this->value->genCSS( $output);
  47
  48                 }catch( Less_Exception_Parser $e ){
  49                         $e->index = $this->index;
  50                         $e->currentFile = $this->currentFileInfo;
  51                         throw $e;
  52                 }
  53                 $output->add( $this->important . (($this->inline || (Less_Environment::$lastRule && Less_Parser::$options['compress'])) ? "" : ";"), $this->currentFileInfo, $this->index);
  54         }
  55
  56         public function compile ($env){
  57
  58                 $name = $this->name;
  59                 if( is_array($name) ){
  60                         // expand 'primitive' name directly to get
  61                         // things faster (~10% for benchmark.less):
  62                         if( count($name) === 1 && $name[0] instanceof Less_Tree_Keyword ){
  63                                 $name = $name[0]->value;
  64                         }else{
  65                                 $name = $this->CompileName($env,$name);
  66                         }
  67                 }
  68
  69                 $strictMathBypass = Less_Parser::$options['strictMath'];
  70                 if( $name === "font" && !Less_Parser::$options['strictMath'] ){
  71                         Less_Parser::$options['strictMath'] = true;
  72                 }
  73
  74                 try {
  75                         $evaldValue = $this->value->compile($env);
  76
  77                         if( !$this->variable && $evaldValue->type === "DetachedRuleset") {
  78                                 throw new Less_Exception_Compiler("Rulesets cannot be evaluated on a property.", null, $this->index, $this->currentFileInfo);
  79                         }
  80
  81                         if( Less_Environment::$mixin_stack ){
  82                                 $return = new Less_Tree_Rule($name, $evaldValue, $this->important, $this->merge, $this->index, $this->currentFileInfo, $this->inline);
  83                         }else{
  84                                 $this->name = $name;
  85                                 $this->value = $evaldValue;
  86                                 $return = $this;
  87                         }
  88
  89                 }catch( Less_Exception_Parser $e ){
  90                         if( !is_numeric($e->index) ){
  91                                 $e->index = $this->index;
  92                                 $e->currentFile = $this->currentFileInfo;
  93                         }
  94                         throw $e;
  95                 }
  96
  97                 Less_Parser::$options['strictMath'] = $strictMathBypass;
  98
  99                 return $return;
 100         }
 101
 102
 103         function CompileName( $env, $name ){
 104                 $output = new Less_Output();
 105                 foreach($name as $n){
 106                         $n->compile($env)->genCSS($output);
 107                 }
 108                 return $output->toString();
 109         }
 110
 111         function makeImportant(){
 112                 return new Less_Tree_Rule($this->name, $this->value, '!important', $this->merge, $this->index, $this->currentFileInfo, $this->inline);
 113         }
 114
 115 }