Automattic / jetpack

	 * @param string $str Input string.

	 * @return string Plain text string.

	 */

	protected function get_plain_text( $str ) {

		// Trim string and return if empty.

		$str = trim( (string) $str );

		if ( empty( $str ) ) {

			return '';

		}

		// Make sure there are no tags.

		$str = wp_strip_all_tags( $str );

		// Replace all entities with their characters, including all types of quotes.

		$str = html_entity_decode( $str, ENT_QUOTES );

		return $str;

	}

	/**

	 * Formats strings as safe HTML.

	 * @param string $str Input string.

	 * @return string HTML text string.

	 */

	protected function get_rich_text( $str ) {

		// Trim string and return if empty.

		$str = trim( (string) $str );

		if ( empty( $str ) ) {

			return '';

		}

		// Make sure HTML is safe.

		$str = wp_kses_post( $str );

		// Replace all entities with their characters, including all types of quotes.

		$str = html_entity_decode( $str, ENT_QUOTES );

		return $str;

	}

	/**

	 * Loads an RSS feed using `fetch_feed`.