source: branches/Ver2.0/xpressme_integration_kit/include/xpress_render.php

<?php

//< style >< script >< link > tag is pulled out from the header of html contents. 
function get_mod_header($contents)
{
        global $xpress_config;
        
        $pattern = "<body[^>]*?>(.*)<\/body>";
        $body_cut = preg_replace("/".$pattern."/s" , '' , $contents);


        $pattern = "<head[^>]*?>(.*)<\/head>";
        preg_match("/".$pattern."/s",  $body_cut, $head_matches);
        $head_str = $head_matches[1];
        
        $pattern = '<head[^>]*?>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);
        $pattern = '<\/head>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);
        $pattern = '<\s*html\s+xmlns[^>]*?>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);
        $pattern = '<\s*head\s+profile[^>]*?>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);
        $pattern = '<\s*meta\s+http-equiv[^>]*?>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);
        $pattern = '<title[^>]*?>(.*)<\s*\/\s*title\s*>';
        $head_str = preg_replace("/".$pattern."/s" , '' , $head_str);

        $head_str = meta_name_cut('robots',$head_str);
        $head_str = meta_name_cut('keywords',$head_str);
        $head_str = meta_name_cut('description',$head_str);
        $head_str = meta_name_cut('rating',$head_str);
        $head_str = meta_name_cut('author',$head_str);
        $head_str = meta_name_cut('copyright',$head_str);
        $head_str = meta_name_cut('generator',$head_str);

        $head_str = preg_replace("/^(\s)*(\r|\n|\r\n)/m", "", $head_str);       
        return $head_str;
}

function meta_name_cut($name = '', $head_str)
{
        $pattern = '<\s*meta\s+name\s*=\s*["\']' . $name . '["\'][^>]*?>';
        $head_str = preg_replace("/".$pattern."/i" , '' , $head_str);
        return $head_str;
}

// for title reprace plugin (all in one seo pack)
function get_xpress_title($contents)
{
        $pattern = '<title[^>]*?>(.*)<\s*\/\s*title\s*>';
        preg_match("/".$pattern."/i",  $contents, $head_matches);
        $title_str = $head_matches[1];
        return $title_str;
}

function get_xpress_meta_name($name = '',$contents)
{
        $pattern = '<\s*meta\s+name\s*=\s*["\']' . $name . '["\']\s*content\s*=\s*[\'"](.*)[\'"]\s*\/\s*>';
        preg_match("/".$pattern."/i",  $contents, $head_matches);
        $meta = $head_matches[1];
        return $meta;
}

// get sidebar rendaring 
function get_sidebar_rander($name = null)
{
        $templates = array();
        if ( isset($name) )
                $templates[] = "sidebar-{$name}.php";

        $templates[] = "sidebar.php";

        $link= locate_template($templates, false);
        if ('' == $link)
                $link =  get_theme_root() . '/default/sidebar.php';

        ob_start();
                require($link);
                $sidebar = ob_get_contents();
        ob_end_clean();
        return $sidebar;
}

// < body > tag is pulled out from the header of html contents. 
function get_body($contents)
{
        $xpess_config = new XPressME_Class();
        $pattern = "<body[^>]*?>(.*)<\/body>";
        preg_match("/".$pattern."/s",  $contents, $body_matches);
        $body = $body_matches[1];

        if (!$xpess_config->is_theme_sidebar_disp){
                $side_panel = get_sidebar_rander();
                        $body = str_replace($side_panel,'',$body);
        }
        return $body;
}

//Making of module header
function get_xpress_module_header($contents)
{
        global $xoopsTpl;
        if( defined( 'XOOPS_CUBE_LEGACY' ) ) {
                $preload_make_module_header = $xoopsTpl->get_template_vars('xoops_module_header');
        } else {
                $preload_make_module_header = '';
        }
        
        if (! empty($preload_make_module_header)){
        $preload_make_module_header = '<!-- preload added module header -->
' . $preload_make_module_header . '
';
        }
        
        $wp_module_header = '<!-- wordpress  added module header -->
' . get_mod_header($contents) . '
<!-- end of wordpress  added module header -->';
        
        return $preload_make_module_header . $wp_module_header;
}

//PHP_SELF and GET are remake for the XOOPS event notification.
function xpress_remake_global_for_permlink(){
        global $wp_db,$wp_query;
        $php_self = $_SERVER['PHP_SELF'];
        $get = $_GET;

        if (preg_match('/\/$/',$php_self) && !preg_match('/index.php/',$php_self)) {
                $php_self = $php_self . 'index.php';
                $_SERVER['PHP_SELF'] = $php_self;
        }
        if (empty($_GET)){
                $query_vars = $wp_query->query_vars;
                $post = $wp_query->post;
                if ($wp_query->is_single) {
                        $_GET = array('p'=>$post->ID);
                } else if($wp_query->is_category){
                        $_GET = array('cat'=>$query_vars['cat']);
                } else if($wp_query->is_author){
                        $_GET = array('author'=>$query_vars['author']);
                }
        }
}

//rendering for the module header and the body
function xpress_render($contents){
        global $xoops_config , $xoopsTpl,$xpress_config;
        xpress_remake_global_for_permlink();
        $mydirname = basename(dirname(dirname(__FILE__)));
        include $xoops_config->xoops_root_path ."/header.php";
        $xoopsTpl->assign('xoops_module_header', get_xpress_module_header($contents));
        $page_title = $GLOBALS["xoopsModule"]->getVar("name"). ' &raquo;'. get_xpress_title($contents);
        $xoopsTpl->assign('xoops_pagetitle', $page_title);
        
        $xoops_keywords = $xoopsTpl->get_template_vars('xoops_meta_keywords');
        $wp_keyword = get_xpress_meta_name('keywords',$contents);
        switch ($xpress_config->meta_keyword_type){
                case 'xoops':
                        break;
                case 'wordpress':
                        if (!empty($wp_keyword))
                                $xoopsTpl->assign('xoops_meta_keywords', $wp_keyword);
                        break;
                case 'wordpress_xoops':
                        if (!empty($wp_keyword)){
                                if (!empty($xoops_keywords)){
                                        $keywords = $wp_keyword . ', ' . $xoops_keywords;
                                } else {
                                        $keywords = $wp_keyword;
                                }
                                $xoopsTpl->assign('xoops_meta_keywords', $keywords);
                        } 
                        break;
                default :
        }

        $xoops_description = $xoopsTpl->get_template_vars('xoops_meta_description');
        $wp_description = get_xpress_meta_name('description',$contents);
        switch ($xpress_config->meta_description_type){
                case 'xoops':
                        break;
                case 'wordpress':
                        if (!empty($wp_description))
                                $xoopsTpl->assign('xoops_meta_description', $wp_description);
                        break;
                case 'wordpress_xoops':
                        if (!empty($wp_description)){
                                if (!empty($xoops_description)){
                                        $description = $wp_description . ' ' . $xoops_description;
                                } else {
                                        $description = $wp_description;
                                }
                                $xoopsTpl->assign('xoops_meta_description', $description);
                        } 
                        break;
                default :
        }

        $wp_robots = get_xpress_meta_name('robots',$contents);
        switch ($xpress_config->meta_robot_type){
                case 'xoops':
                        break;
                case 'wordpress':
                        if (!empty($wp_robots))
                                $xoopsTpl->assign('xoops_meta_robots', $wp_robots);
                        break;
                default :
        }
        
        $xpress_data['body_contents'] = get_body($contents);
        // used $GLOBALS. becose xpress_left_arrow_post_link() and xpress_right_arrow_post_link() is other loop in this position
        $xpress_data['left_post_link'] = $GLOBALS['left_arrow_post_link'];
        $xpress_data['right_post_link'] = $GLOBALS['right_arrow_post_link'];
        $xpress_data['left_posts_link'] =  str_replace('&laquo;','',xpress_left_arrow_posts_link(false));
        $xpress_data['right_posts_link'] = str_replace('&raquo;','',xpress_right_arrow_posts_link(false));
        $xpress_data['now_user_level'] = xpress_now_user_level(false);

        $xoopsTpl->assign('xpress', $xpress_data);
        $templates_file = 'db:'.$mydirname. '_index.html';
        echo $xoopsTpl->fetch( $templates_file ) ;
        require_once( ABSPATH .'/include/xpress_breadcrumbs.php' );
        include $xoops_config->xoops_root_path . '/footer.php';
}

?>