serendipity_event_textile.php

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<?php # $Id: serendipity_event_textile.php,v 1.3.4.1 2004/04/13 10:01:14 garvinhicking Exp $

/******************************************************
*汉化作者:youngong(http://youngong.tk)                *
*如果有问题,欢迎和作者及汉化作者联系。                *
*[e-mail]                                     *
*******************************************************/

require_once S9Y_INCLUDE_PATH . 'plugins/serendipity_event_textile/textile.php';

switch ($serendipity['lang']) {
    case 'de':
        @define('PLUGIN_EVENT_TEXTILE_NAME',     'Textformatierung: Textile');
        @define('PLUGIN_EVENT_TEXTILE_DESC',     'Textile-Formatierung durchf黨ren');
        @define('PLUGIN_EVENT_TEXTILE_TRANSFORM', '<a href="http://www.textism.com/tools/textile/">Textile</a>-Formatierung erlaubt');
        break;

    case 'cn':
        @define('PLUGIN_EVENT_TEXTILE_NAME', '标记: Textile');
        @define('PLUGIN_EVENT_TEXTILE_DESC', '通过Textile转换器解析所有输出');
        @define('PLUGIN_EVENT_TEXTILE_TRANSFORM', '<a href="http://www.textism.com/tools/textile/">Textile</a>-格式标准');
        break;
        
    case 'en':
    default:
        @define('PLUGIN_EVENT_TEXTILE_NAME', 'Markup: Textile');
        @define('PLUGIN_EVENT_TEXTILE_DESC', 'Parse all output through the Textile converter');
        @define('PLUGIN_EVENT_TEXTILE_TRANSFORM', '<a href="http://www.textism.com/tools/textile/">Textile</a>-formatting allowed');
        break;
}

class serendipity_event_textile extends serendipity_event
{

    function introspect(&$propbag)
    {
        global $serendipity;

        $propbag->add('name',          PLUGIN_EVENT_TEXTILE_NAME);
        $propbag->add('description',   PLUGIN_EVENT_TEXTILE_DESC);
        $propbag->add('event_hooks', array('frontend_display' => true, 'frontend_comment' => true));

        $propbag->add('preserve_tags',
          array(
            'php',
            'output',
            'name'
          )
        );

        $this->markup_elements = array(
            array(
              'name'     => ENTRY_BODY,
              'element'  => 'body',
            ),
            array(
              'name'     => EXTENDED_BODY,
              'element'  => 'extended',
            ),
            array(
              'name'     => COMMENT,
              'element'  => 'comment',
            ),
            array(
              'name'     => HTML_NUGGET,
              'element'  => 'html_nugget',
            )
        );

        $conf_array = array();
        foreach($this->markup_elements as $element) {
            $conf_array[] = $element['name'];
        }
        $propbag->add('configuration', $conf_array);
    }


    function generate_content(&$title) {
        $title = PLUGIN_EVENT_TEXTILE_NAME;
    }


    function introspect_config_item($name, &$propbag)
    {
        $propbag->add('type',        'boolean');
        $propbag->add('name',        $name);
        $propbag->add('description', sprintf(APPLY_MARKUP_TO, $name));
        return true;
    }


    function event_hook($event, &$bag, &$eventData) {
        global $serendipity;

        $hooks = &$bag->get('event_hooks');

        if (isset($hooks[$event])) {
            switch($event) {
              case 'frontend_display':

                $preserve_tags = &$bag->get('preserve_tags');

                foreach ($this->markup_elements as $temp) {
                    if (serendipity_db_bool($this->get_config($temp['name'], true))) {
                        $element = $temp['element'];

        /* find all the tags and store them in $blocks */

                        $blocks = array();
                        foreach($preserve_tags as $tag) {
                            if (preg_match_all('/(<'.$tag.'[^>]?>.*<\/'.$tag.'>)/msU', $eventData[$element], $matches )) {
                                foreach($matches[1] as $match) {
                                    $blocks[] = $match;
                                }
                            }
                        }

        /* replace all the blocks with some code */

                        foreach($blocks as $id=>$block) {
                            $eventData[$element] = str_replace($block, '@BLOCK::'.$id.'@', $eventData[$element]);
                        }

        /* textile it */

                        $eventData[$element] = textile($eventData[$element]);

        /* each block will now be "<code>BLOCK::2</code>"
         * so look for those place holders and replace
         * them with the original blocks */

                        if (preg_match_all('/<code>BLOCK::(\d+)<\/code>/', $eventData[$element], $matches )) {
                            foreach($matches[1] as $key=>$match) {
                                $eventData[$element] = str_replace($matches[0][$key], $blocks[$match], $eventData[$element]);
                            }
                        }

        /* post-process each block */

                        foreach($preserve_tags as $tag) {
                            $method = '_process_tag_' . $tag;
                            if (method_exists($this,$method)) {
                                if (preg_match_all('/<'.$tag.'[^>]?>(.*)<\/'.$tag.'>/msU', $eventData[$element], $matches )) {
                                    foreach($matches[1] as $key=>$match) {
                                        $eventData[$element] = str_replace($matches[0][$key], $this->$method($match), $eventData[$element]);
                                    }
                                }
                            }
                        }

        /* end textile processing */

                    }
                }
                return true;

                case 'frontend_comment':
                    if (serendipity_db_bool($this->get_config(COMMENT, true))) {
                        echo PLUGIN_EVENT_TEXTILE_TRANSFORM . '<br />';
                    }
                    return true;
                    break;

                default:
                  return false;
            }

        } else {

            return false;

        }

    }

    function _process_tag_php($text) {

        $code = "<?php\n" . trim($text) . "\n?>";

        # Using OB, as highlight_string() only supports
        # returning the result from 4.2.0

        ob_start();
        highlight_string($code);
        $highlighted = ob_get_contents();
        ob_end_clean();

        # Fix output to use CSS classes and wrap well

        $highlighted = '<p><div class="phpcode">' . str_replace(
            array(
                '&nbsp;',
                '<br />',
                '<font color="',
                '</font>',
                "\n ",
                '