<?php 
/**
 * Relative Linking Plugin
 *
 * @author Andy Turner <public@ssbd.net>
 */

if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');

class action_plugin_relativelinks extends DokuWiki_Action_Plugin {

  /**
   * return some info
   */
  function getInfo(){
    return array(
                 'author' => 'Andy Turner',
                 'email'  => 'public [at] ssbd [dot] net',
                 'date'   => '2008-03-07',
                 'name'   => 'Relative Links',
                 'desc'   => 'Replaces standard wiki-base-centric links with relative ones (anything which doesn\'t start with . or : is assumed to be relative to the current namespace)',
                 );
  }

  /**
   * Register its handlers with the DokuWiki's event controller
   */
  function register(Doku_Event_Handler $controller) {
    $controller->register_hook('PARSER_WIKITEXT_PREPROCESS', 'BEFORE',  $this, '_hookrellink');
  }

  /**
   * Stick a colon in front of links... that's all :D
   *
   * @author Andy Turner <public [at] ssbd [dot] net>
   */
  function _hookrellink(&$event, $param) {
        $event->data = preg_replace( "/\[\[([^:.][^\/]*?(?:\|.*?))\]\]/", '[[.:${1}]]', $event->data );
  }
}