function crumbs_match_pattern in Crumbs, the Breadcrumbs suite 6.2

File

./crumbs.module, line 81

Code

function crumbs_match_pattern($patterns, $path = NULL) {
  if (is_string($patterns)) {
    $patterns = explode("\n", $patterns);
  }
  if (!isset($path)) {
    $path = $_GET['q'];
  }
  $trail = crumbs_get_trail($path);
  $patterns_normalized = array();
  foreach ($patterns as $pattern) {
    $pattern = trim(strtolower($pattern));
    if (strlen($pattern)) {
      $patterns_normalized[$pattern] = TRUE;
    }
  }
  $patterns = $patterns_normalized;
  foreach (array_reverse($trail) as $item) {
    $alias = $item['alias'];
    if (isset($patterns[$alias])) {
      return TRUE;
    }
    else {
      if (isset($patterns['! ' . $alias])) {
        return FALSE;
      }
      else {
        if (isset($patterns[$alias . '/+'])) {
          return TRUE;
        }
        else {
          if (isset($patterns['! ' . $alias . '/+'])) {
            return FALSE;
          }
        }
      }
    }
  }
  $alias = drupal_get_path_alias($path);
  $fragments = explode('/', $alias);
  $partial_alias = array_shift($fragments);
  $match = NULL;
  while (TRUE) {
    if (empty($fragments)) {
      break;
    }
    if (isset($patterns[$partial_alias . '/*'])) {
      $match = TRUE;
    }
    else {
      if (isset($patterns['! ' . $partial_alias . '/*'])) {
        $match = FALSE;
      }
    }
    $partial_alias .= '/' . array_shift($fragments);
  }
  if (isset($match)) {
    return $match;
  }
  if (isset($patterns['*'])) {
    return TRUE;
  }
  return FALSE;
}