96 lines
1.9 KiB
PHP
96 lines
1.9 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Expression
|
||
|
|
*
|
||
|
|
* @package Less
|
||
|
|
* @subpackage tree
|
||
|
|
*/
|
||
|
|
class Less_Tree_Expression extends Less_Tree {
|
||
|
|
|
||
|
|
public $value = array();
|
||
|
|
public $parens = false;
|
||
|
|
public $parensInOp = false;
|
||
|
|
public $type = 'Expression';
|
||
|
|
|
||
|
|
public function __construct( $value, $parens = null ) {
|
||
|
|
$this->value = $value;
|
||
|
|
$this->parens = $parens;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function accept( $visitor ) {
|
||
|
|
$this->value = $visitor->visitArray( $this->value );
|
||
|
|
}
|
||
|
|
|
||
|
|
public function compile( $env ) {
|
||
|
|
$doubleParen = false;
|
||
|
|
|
||
|
|
if ( $this->parens && !$this->parensInOp ) {
|
||
|
|
Less_Environment::$parensStack++;
|
||
|
|
}
|
||
|
|
|
||
|
|
$returnValue = null;
|
||
|
|
if ( $this->value ) {
|
||
|
|
|
||
|
|
$count = count( $this->value );
|
||
|
|
|
||
|
|
if ( $count > 1 ) {
|
||
|
|
|
||
|
|
$ret = array();
|
||
|
|
foreach ( $this->value as $e ) {
|
||
|
|
$ret[] = $e->compile( $env );
|
||
|
|
}
|
||
|
|
$returnValue = new Less_Tree_Expression( $ret );
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
if ( ( $this->value[0] instanceof Less_Tree_Expression ) && $this->value[0]->parens && !$this->value[0]->parensInOp ) {
|
||
|
|
$doubleParen = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
$returnValue = $this->value[0]->compile( $env );
|
||
|
|
}
|
||
|
|
|
||
|
|
} else {
|
||
|
|
$returnValue = $this;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( $this->parens ) {
|
||
|
|
if ( !$this->parensInOp ) {
|
||
|
|
Less_Environment::$parensStack--;
|
||
|
|
|
||
|
|
} elseif ( !Less_Environment::isMathOn() && !$doubleParen ) {
|
||
|
|
$returnValue = new Less_Tree_Paren( $returnValue );
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $returnValue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @see Less_Tree::genCSS
|
||
|
|
*/
|
||
|
|
public function genCSS( $output ) {
|
||
|
|
$val_len = count( $this->value );
|
||
|
|
for ( $i = 0; $i < $val_len; $i++ ) {
|
||
|
|
$this->value[$i]->genCSS( $output );
|
||
|
|
if ( $i + 1 < $val_len ) {
|
||
|
|
$output->add( ' ' );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public function throwAwayComments() {
|
||
|
|
if ( is_array( $this->value ) ) {
|
||
|
|
$new_value = array();
|
||
|
|
foreach ( $this->value as $v ) {
|
||
|
|
if ( $v instanceof Less_Tree_Comment ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$new_value[] = $v;
|
||
|
|
}
|
||
|
|
$this->value = $new_value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|