public static function get_date_front( $post_type ) {
		$structure = CPTP_Util::get_permalink_structure( $post_type );

		$front = '';

		preg_match_all( '/%.+?%/', $structure, $tokens );
		$tok_index = 1;
		foreach ( (array) $tokens[0] as $token ) {
			if ( '%post_id%' === $token && ( $tok_index <= 3 ) ) {
				$front = '/date';
				break;
			}
			$tok_index ++;
		}

		return apply_filters( 'CPTP_date_front', $front, $post_type, $structure );
	}