source: branches/0.4/web/addons/job_monarch/dwoo/plugins/builtin/blocks/else.php @ 755

<?php

/**
 * Generic else block, it supports all builtin optional-display blocks which are if/for/foreach/loop/with
 *
 * If any of those block contains an else statement, the content between {else} and {/block} (you do not
 * need to close the else block) will be shown if the block's condition has no been met
 *
 * Example :
 *
 * <code>
 * {foreach $array val}
 *   $array is not empty so we display it's values : {$val}
 * {else}
 *   if this shows, it means that $array is empty or doesn't exist.
 * {/foreach}
 * </code>
 *
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the authors be held liable for any damages arising from the use of this software.
 *
 * @author     Jordi Boggiano <j.boggiano@seld.be>
 * @copyright  Copyright (c) 2008, Jordi Boggiano
 * @license    http://dwoo.org/LICENSE   Modified BSD License
 * @link       http://dwoo.org/
 * @version    1.0.0
 * @date       2008-10-23
 * @package    Dwoo
 */
class Dwoo_Plugin_else extends Dwoo_Block_Plugin implements Dwoo_ICompilable_Block
{
        public function init()
        {
        }

        public static function preProcessing(Dwoo_Compiler $compiler, array $params, $prepend, $append, $type)
        {
                $preContent = '';
                while (true) {
                        $preContent .= $compiler->removeTopBlock();
                        $block =& $compiler->getCurrentBlock();
                        $interfaces = class_implements($block['class'], false);
                        if (in_array('Dwoo_IElseable', $interfaces) !== false) {
                                break;
                        }
                }

                $params['initialized'] = true;
                $compiler->injectBlock($type, $params);
                return $preContent;
        }

        public static function postProcessing(Dwoo_Compiler $compiler, array $params, $prepend, $append, $content)
        {
                if (!isset($params['initialized'])) {
                        return '';
                }

                $block =& $compiler->getCurrentBlock();
                $block['params']['hasElse'] = Dwoo_Compiler::PHP_OPEN."else {\n".Dwoo_Compiler::PHP_CLOSE . $content . Dwoo_Compiler::PHP_OPEN."\n}".Dwoo_Compiler::PHP_CLOSE;
                return '';
        }
}