/** Various helper functions.
 *
 * @file
 * @author Steffen Vogel <svogel2@eonerc.rwth-aachen.de>
 * @copyright 2014-2022, 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

/* 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
 */
#if 0 /* Alternate character set */
  #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: ┘ */
#elif 1 /* UTF-8 */
  #define BOX_LR	"─" /**< Boxdrawing: ─ */
  #define BOX_UD	"│" /**< Boxdrawing: │ */
  #define BOX_UDR	"├" /**< Boxdrawing: ├ */
  #define BOX_UDLR	"┼" /**< Boxdrawing: ┼ */
  #define BOX_UDL	"┤" /**< Boxdrawing: ┤ */
  #define BOX_ULR	"┴" /**< Boxdrawing: ┴ */
  #define BOX_UL	"┘" /**< Boxdrawing: ┘ */
  #define BOX_DLR	"┬" /**< Boxdrawing: ┘ */
  #define BOX_DL	"┐" /**< Boxdrawing: ┘ */
  #define BOX_UR	"└" /**< Boxdrawing: └ */
#else /* ASCII */
  #define BOX_LR	"-" /**< Boxdrawing: ─ */
  #define BOX_UD	"|" /**< Boxdrawing: │ */
  #define BOX_UDR	"+" /**< Boxdrawing: ├ */
  #define BOX_UDLR	"+" /**< Boxdrawing: ┼ */
  #define BOX_UDL	"+" /**< Boxdrawing: ┤ */
  #define BOX_ULR	"+" /**< Boxdrawing: ┴ */
  #define BOX_UL	"+" /**< Boxdrawing: ┘ */
  #define BOX_DLR	"+" /**< Boxdrawing: ┘ */
  #define BOX_DL	"+" /**< Boxdrawing: ┘ */
#endif