SassBoolean.php in Sassy 7

File

phamlp/sass/script/literals/SassBoolean.php

<?php

/* SVN FILE: $Id$ */

/**
 * SassBoolean class file.
 * @author			Chris Yates <[e-mail]>
 * @copyright 	Copyright (c) 2010 PBM Web Development
 * @license			http://phamlp.googlecode.com/files/license.txt
 * @package			PHamlP
 * @subpackage	Sass.script.literals
 */
require_once 'SassLiteral.php';

/**
 * SassBoolean class.
 * @package			PHamlP
 * @subpackage	Sass.script.literals
 */
class SassBoolean extends SassLiteral {

  /**@#+
   * Regex for matching and extracting booleans
   */
  const MATCH = '/^(true|false)\\b/';

  /**
   * SassBoolean constructor
   * @param string value of the boolean type
   * @return SassBoolean
   */
  public function __construct($value) {
    if (is_bool($value)) {
      $this->value = $value;
    }
    elseif ($value === 'true' || $value === 'false') {
      $this->value = $value === 'true' ? true : false;
    }
    else {
      throw new SassBooleanException('Invalid {what}', array(
        '{what}' => 'SassBoolean',
      ), SassScriptParser::$context->node);
    }
  }

  /**
   * Returns the value of this boolean.
   * @return boolean the value of this boolean
   */
  public function getValue() {
    return $this->value;
  }

  /**
   * Returns a string representation of the value.
   * @return string string representation of the value.
   */
  public function toString() {
    return $this
      ->getValue() ? 'true' : 'false';
  }

  /**
   * Returns a value indicating if a token of this type can be matched at
   * the start of the subject string.
   * @param string the subject string
   * @return mixed match at the start of the string or false if no match
   */
  public static function isa($subject) {
    return preg_match(self::MATCH, $subject, $matches) ? $matches[0] : false;
  }

}

Classes

Name	Description
SassBoolean	SassBoolean class. @package PHamlP @subpackage Sass.script.literals