original_string: protected function registration_warning($registered) {
  
          if (!$registered && site_is_public()) {
              if (has_capability('moodle/site:config', context_system::instance())) {
                  $registerbutton = $this->single_button(new moodle_url('/admin/registration/index.php'),
                      get_string('register', 'admin'));
                  $str = 'registrationwarning';
              } else {
                  $registerbutton = '';
                  $str = 'registrationwarningcontactadmin';
              }
  
              return $this->warning( get_string($str, 'admin')
                      . '&nbsp;' . $this->help_icon('registration', 'admin') . $registerbutton ,
                  'error alert alert-danger');
          }
  
          return '';
      }
code: protected function registration_warning($registered) {
  
          if (!$registered && site_is_public()) {
              if (has_capability('moodle/site:config', context_system::instance())) {
                  $registerbutton = $this->single_button(new moodle_url('/admin/registration/index.php'),
                      get_string('register', 'admin'));
                  $str = 'registrationwarning';
              } else {
                  $registerbutton = '';
                  $str = 'registrationwarningcontactadmin';
              }
  
              return $this->warning( get_string($str, 'admin')
                      . '&nbsp;' . $this->help_icon('registration', 'admin') . $registerbutton ,
                  'error alert alert-danger');
          }
  
          return '';
      }
code_tokens: protected function registration_warning ( $ registered ) { if ( ! $ registered && site_is_public ( ) ) { if ( has_capability ( 'moodle/site:config' , context_system :: instance ( ) ) ) { $ registerbutton = $ this -> single_button ( new moodle_url ( '/admin/registration/index.php' ) , get_string ( 'register' , 'admin' ) ) ; $ str = 'registrationwarning' ; } else { $ registerbutton = '' ; $ str = 'registrationwarningcontactadmin' ; } return $ this -> warning ( get_string ( $ str , 'admin' ) . '&nbsp;' . $ this -> help_icon ( 'registration' , 'admin' ) . $ registerbutton , 'error alert alert-danger' ) ; } return '' ; }
docstring: Display a warning about not being registered on Moodle.org if necesary.
  
  @param boolean $registered true if the site is registered on Moodle.org
  @return string HTML to output.
docstring_tokens: Display a warning about not being registered on Moodle . org if necesary .