function htmlpurifier_filter in HTML Purifier 6

Same name and namespace in other branches

1. 5 htmlpurifier.module \htmlpurifier_filter()
2. 6.2 htmlpurifier.module \htmlpurifier_filter()

Implementation of hook_filter().

File

./htmlpurifier.module, line 70

Implements HTML Purifier as a Drupal filter.

Code

function htmlpurifier_filter($op, $delta = 0, $format = -1, $text = '') {
  switch ($op) {
    case 'list':
      return array(
        0 => t('HTML Purifier'),
        1 => t('HTML Purifier (advanced)'),
      );
    case 'no cache':

      // Since HTML Purifier implements its own caching layer, having filter
      // cache it again is wasteful. Returns FALSE if double caching is permitted.
      return !variable_get("htmlpurifier_doublecache_{$format}", FALSE);
    case 'description':
      $common = t('Removes malicious HTML code and ensures that the output ' . 'is standards compliant. <strong>Warning:</strong> For performance ' . 'reasons, please ensure that there are no highly dynamic filters before HTML Purifier. ');
      switch ($delta) {
        case 0:
          return $common;
        case 1:
          return $common . t('<em>This version has advanced configuration options, do not enable both at the same time.</em>');
      }
    case 'prepare':
      return $text;
    case 'process':
      return _htmlpurifier_process($text, $format);
    case 'settings':
      return _htmlpurifier_settings($delta, $format);
    default:
      return NULL;
  }
}