/** Various helper functions.
 *
 * @file
 * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
 * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
 * @license GNU General Public License (version 3)
 *
 * VILLASnode
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************************/

#pragma once

/* Alternate character set
 *
 * The suffixed of the BOX_ macro a constructed by
 * combining the following letters in the written order:
 *   - U for a line facing upwards
 *   - D for a line facing downwards
 *   - L for a line facing leftwards
 *   - R for a line facing rightwards
 *
 * E.g. a cross can be constructed by combining all line fragments:
 *    BOX_UDLR
 */
#define BOX(chr)	"\e(0" chr "\e(B"
#define BOX_LR		BOX("\x71") /**< Boxdrawing: ─ */
#define BOX_UD		BOX("\x78") /**< Boxdrawing: │ */
#define BOX_UDR		BOX("\x74") /**< Boxdrawing: ├ */
#define BOX_UDLR	BOX("\x6E") /**< Boxdrawing: ┼ */
#define BOX_UDL		BOX("\x75") /**< Boxdrawing: ┤ */
#define BOX_ULR		BOX("\x76") /**< Boxdrawing: ┴ */
#define BOX_UL		BOX("\x6A") /**< Boxdrawing: ┘ */
#define BOX_DLR		BOX("\x77") /**< Boxdrawing: ┘ */
#define BOX_DL		BOX("\x6B") /**< Boxdrawing: ┘ */