<?php
/**
* @version       $Id: pagebreak.php 10576 2008-07-21 12:50:09Z ircmaxell $
* @package       Joomla
* @copyright     Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
* @license       GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
 
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );
 
$mainframe->registerEvent( 'onPrepareContent', 'plgContentPagebreak' );
 
/**
* Page break plugin
*
* <b>Usage:</b>
* <code><hr class="system-pagebreak" /></code>
* <code><hr class="system-pagebreak" title="The page title" /></code>
* or
* <code><hr class="system-pagebreak" alt="The first page" /></code>
* or
* <code><hr class="system-pagebreak" title="The page title" alt="The first page" /></code>
* or
* <code><hr class="system-pagebreak" alt="The first page" title="The page title" /></code>
*
*/
function plgContentPagebreak( &$row, &$params, $page=0 )
{
     // expression to search for
     $regex = '#<hr([^>]*?)class=(\"|\')system-pagebreak(\"|\')([^>]*?)\/*>#iU';
 
     // Get Plugin info
     $plugin           =& JPluginHelper::getPlugin('content', 'pagebreak');
     $pluginParams    = new JParameter( $plugin->params );
 
     $print&nbsp; &nbsp;= JRequest::getBool('print');
     $showall = JRequest::getBool('showall');
 
     if (!$pluginParams->get('enabled', 1)) {
          $print = true;
     }
 
     if ($print) {
          $row->text = preg_replace( $regex, '<BR/>', $row->text );
          return true;
     }
 
     //simple performance check to determine whether bot should process further
&nbsp; &nbsp; if ( strpos( $row->text, 'class="system-pagebreak' ) === false && strpos( $row->text, 'class=\'system-pagebreak' ) === false ) {
          return true;
     }
 
     $db      =& JFactory::getDBO();
     $full   = JRequest::getBool('fullview');
 
     if(!$page) {
          $page = 0;
     }
 
 
     // check whether plugin has been unpublished
     if (!JPluginHelper::isEnabled('content', 'pagebreak') || $params->get( 'intro_only' )|| $params->get( 'popup' ) || $full) {
          $row->text = preg_replace( $regex, '', $row->text );
          return;
     }
 
     // find all instances of plugin and put in $matches
     $matches = array();
     preg_match_all( $regex, $row->text, $matches, PREG_SET_ORDER );
 
     if (($showall && $pluginParams->get('showall', 1) ))
     {
          $hasToc = $pluginParams->get( 'multipage_toc', 1 );
          if ( $hasToc ) {
               // display TOC
               $page = 1;
               plgContentCreateTOC( $row, $matches, $page );
          } else {
               $row->toc = '';
          }
          $row->text = preg_replace( $regex, '<BR/>', $row->text );
          return true;
     }
 
     // split the text around the plugin
     $text = preg_split( $regex, $row->text );
 
     // count the number of pages
     $n = count( $text );
 
     // we have found at least one plugin, therefore at least 2 pages
     if ($n > 1)
     {
          // Get pl