SassEachNode.php in Sassy 7

File

phamlp/sass/tree/SassEachNode.php

<?php

/* SVN FILE: $Id$ */

/**
 * SassEachNode class file.
 * The syntax is:
 * <pre>@each <var> in <list><pre>.
 *
 * <list> is comma+space separated
 * <var> is available to the rest of the script following evaluation
 * and has the value that terminated the loop.
 * 
 * @author	Pavol (Lopo) Hluchy <[e-mail]>
 * @copyright	Copyright (c) 2011 Lopo
 * @license	http://www.gnu.org/licenses/gpl.html GNU General Public License Version 3
 * @package	PHamlP
 * @subpackage	Sass.tree
 */

/**
 * SassEachNode class.
 * Represents a Sass @each loop.
 * @package	PHamlP
 * @subpackage	Sass.tree
 */
class SassEachNode extends SassNode {
  const MATCH = '/@each\\s+[!\\$](\\w+)\\s+in\\s+(.+)$/i';
  const VARIABLE = 1;
  const IN = 2;

  /**
   * @var string variable name for the loop
   */
  private $variable;

  /**
   * @var string expression that provides the loop values
   */
  private $in;

  /**
   * SassEachNode constructor.
   * @param object source token
   * @return SassEachNode
   */
  public function __construct($token) {
    parent::__construct($token);
    if (!preg_match(self::MATCH, $token->source, $matches)) {
      throw new SassEachNodeException('Invalid {what}', array(
        '{what}' => '@each directive',
      ), $this);
    }
    $this->variable = $matches[self::VARIABLE];
    $this->in = $matches[self::IN];
  }

  /**
   * Parse this node.
   * @param SassContext the context in which this node is parsed
   * @return array parsed child nodes
   */
  public function parse($context) {
    $children = array();
    $context = new SassContext($context);
    foreach (explode(',', $this
      ->evaluate($this->in, $context)->value) as $var) {
      $context
        ->setVariable($this->variable, new SassString(trim($var)));
      $children = array_merge($children, $this
        ->parseChildren($context));
    }
    return $children;
  }

}

Classes

Name	Description
SassEachNode	SassEachNode class. Represents a Sass @each loop. @package PHamlP @subpackage Sass.tree