PHP Geshi::enable_keyword_links示例

 /**
  * Helper function for overriding some GeSHi defaults.
  *
  * @param \Geshi $geshi
  *   Geshi object.
  * @param string $langcode
  *   The language.
  */
 public static function overrideGeshiDefaults(\Geshi &$geshi, $langcode)
 {
     $config = \Drupal::config('geshifilter.settings');
     // Override the some default GeSHi styles (e.g. GeSHi uses Courier by
     // default, which is ugly).
     $geshi->set_line_style('font-family: monospace; font-weight: normal;', 'font-family: monospace; font-weight: bold; font-style: italic;');
     $geshi->set_code_style('font-family: monospace; font-weight: normal; font-style: normal');
     // Overall class needed for CSS.
     $geshi->set_overall_class('geshifilter-' . $langcode);
     // Set keyword linking.
     $geshi->enable_keyword_links($config->get('enable_keyword_urls', TRUE));
 }