/**
  * Get text command from the message, if any.
  *
  * A blank message is treated as a subscribe command.
  *
  * @since 1.0.0
  * @return string Text command if found, otherwise empty.
  */
 protected function get_text_command()
 {
     $stripped_text = $this->get_message_text();
     if (preg_match('/^\\s*$/', $stripped_text, $matches)) {
         return self::$subscribe_method;
     }
     $subscribe_matcher = new Prompt_Subscribe_Matcher($stripped_text);
     if ($subscribe_matcher->matches()) {
         return self::$subscribe_method;
     }
     $unsubscribe_matcher = new Prompt_Unsubscribe_Matcher($stripped_text);
     if ($unsubscribe_matcher->matches()) {
         return self::$unsubscribe_method;
     }
     return '';
 }
 /**
  * @since 2.0.0
  *
  * @return array Two strings, HTML then text
  */
 protected function footnote_content()
 {
     $html_parts = array();
     $text_parts = array();
     /* translators: %s is a subscription list title */
     $why = sprintf(__('You received this email because you\'re subscribed to %s.', 'Postmatic'), '{{{subscribed_object_label}}}');
     $html_parts[] = $why;
     $text_parts[] = $why;
     /**
      * Filter extra footnote content for post emails.
      *
      * @param array $content Two element array containing first HTML then text content.
      */
     list($html_parts[], $text_parts[]) = apply_filters('prompt/post_email_batch/extra_footnote_content', array('', ''));
     /* translators: %s is the unsubscribe command word */
     $unsub_format = __('To unsubscribe reply with the word \'%s\'.', 'Postmatic');
     $html_parts[] = sprintf($unsub_format, "<a href=\"{$this->unsubscribe_mailto()}\">" . Prompt_Unsubscribe_Matcher::target() . '</a>');
     $text_parts[] = sprintf($unsub_format, Prompt_Unsubscribe_Matcher::target());
     $html_parts = array(html('p', implode(' ', $html_parts)));
     $text_parts[] = "\n\n";
     if ($this->replyable) {
         $sub_mailto = sprintf('mailto:{{{reply_to}}}?subject=%s&body=%s', rawurlencode(__('Subscribe to comments', 'Postmatic')), rawurlencode(Prompt_Subscribe_Matcher::target()));
         /* translators: %s is the subscribed command word */
         $sub_format = __('To keep up to date with the conversation you can subscribe to comments. Just reply to this email with the word \'%s\'.', 'Postmatic');
         $html_parts[] = html('p', sprintf($sub_format, "<a href=\"{$sub_mailto}\">" . Prompt_Subscribe_Matcher::target() . '</a>'));
         $text_parts[] = sprintf($sub_format, Prompt_Subscribe_Matcher::target());
     }
     return array(implode(' ', $html_parts), implode(' ', $text_parts));
 }