token_filter.module in Token Filter 5

File

token_filter.module

<?php

// implementation of hook_filter to create the checkbox filter
function token_filter_filter($op, $delta = 0, $format = -1, $text = '') {
  switch ($op) {
    case 'list':
      return array(
        0 => t('Token filter'),
      );
    case 'description':
      return t('Allows you to use token values in a filter enclosed. Eg. [token global site-name] or [token user user-name]');
    case 'settings':
      break;
    case 'no cache':
      return TRUE;
    case 'prepare':
      return $text;
    case 'process':

      // generate some header code, form tag and we save the node id so that the
      // javascript has a convenient place to get it from
      if (strpos($text, "[token") === false) {
        return $text;
      }
      else {
        $output .= preg_replace_callback("|\\[token ([^ ]*)([^]]*)\\]|i", 'token_filter_replacetoken', $text);
        return $output;
      }
      break;
    default:
      return $text;
  }
}

// helper function for preg_replace_callback to generate the html for each token filter
function token_filter_replacetoken($matches) {
  global $user;
  $type = $matches[1];
  $token = $matches[2];
  switch ($type) {
    case 'global':
      $object = NULL;
      break;
    case 'user':
      $object = $user;
      break;
    default:
      drupal_set_message("Filter Error: token_filter doesn't yet handle objects of type {$type}", 'error');

      // Return the provided token so at least you can see which one is giving the error in the text
      return "%{$token}";
  }
  $output = token_replace($token, $type, $object = NULL, $leading = '', $trailing = '');
  return $output;
}

Functions

Name	Description
token_filter_filter
token_filter_replacetoken