/*

 * Copyright 2008-2011 Various Authors

 * Copyright 2004 Timo Hirvonen

 *

 * 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 2 of the

 * License, or (at your option) 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/>.

 */

#ifndef _FORMAT_PRINT_H

#define _FORMAT_PRINT_H

struct format_option {

	union {

		/* NULL is treated like "" */

		const char *fo_str;

		int fo_int;

		/* [h:]mm:ss. can be negative */

		int fo_time;

		double fo_double;

	};

	/* set to 1 if you want to disable printing */

	unsigned int empty : 1;

	/* set to 1 if zero padding is allowed */

	unsigned int pad_zero : 1;

	enum { FO_STR = 1, FO_INT, FO_TIME, FO_DOUBLE } type;

	char ch;

	const char *str;

};

/* gcc < 4.6 and icc < 12.0 can't properly initialize anonymous unions */

#if (defined(__GNUC__) && defined(__GNUC_MINOR__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6))) || \

	(defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1200)

#define UNION_INIT(f, v) { .f = v }

#else

#define UNION_INIT(f, v) .f = v

#endif

#define DEF_FO_STR(c, s, z)    { UNION_INIT(fo_str,  NULL), .type = FO_STR,    .pad_zero = z, .ch = c, .str = s }

#define DEF_FO_INT(c, s, z)    { UNION_INIT(fo_int,  0),    .type = FO_INT,    .pad_zero = z, .ch = c, .str = s }

#define DEF_FO_TIME(c, s, z)   { UNION_INIT(fo_time, 0),    .type = FO_TIME,   .pad_zero = z, .ch = c, .str = s }

#define DEF_FO_DOUBLE(c, s, z) { UNION_INIT(fo_double, 0.), .type = FO_DOUBLE, .pad_zero = z, .ch = c, .str = s }

#define DEF_FO_END             { .type = 0 }

int format_print(char *str, int width, const char *format, const struct format_option *fopts);

int format_valid(const char *format, const struct format_option *fopts);

#endif