File: str.h

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/*
 * Schism Tracker - a cross-platform Impulse Tracker clone
 * copyright (c) 2003-2005 Storlek <storlek@rigelseven.com>
 * copyright (c) 2005-2008 Mrs. Brisby <mrs.brisby@nimh.org>
 * copyright (c) 2009 Storlek & Mrs. Brisby
 * copyright (c) 2010-2012 Storlek
 * URL: http://schismtracker.org/
 *
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef SCHISM_STR_H_
#define SCHISM_STR_H_

#include "headers.h"

/* formatting */
char *str_from_num(int digits, unsigned int n, char *buf); // what size
char *str_from_num_signed(int digits, int n, char *buf);   // buffer do
char *str_from_num99(int n, char buf[3]);

/* date/time formatting */
typedef enum {
	// stolen from Wikipedia:
	STR_DATE_FORMAT_MMMMDYYYY,  // January 7, 2025  (United States, default)
	STR_DATE_FORMAT_DMMMMYYYY,  // 7 January 2025   (Most of the world)
	STR_DATE_FORMAT_YYYYMMMMDD, // 2025 January 07  (Wikipedia has this ?)

	STR_DATE_FORMAT_MDYYYY,   // M/D/YYYY (United States, default)
	STR_DATE_FORMAT_MMDDYYYY, // M/D/YYYY (United States with leading zeroes)
	STR_DATE_FORMAT_DMYYYY,   // D/M/YYYY (United Kingdom with no leading zeroes)
	STR_DATE_FORMAT_DDMMYYYY, // DD/MM/YYYY (United Kingdom)
	STR_DATE_FORMAT_YYYYMD,   // YYYY/M/D
	STR_DATE_FORMAT_YYYYMMDD, // YYYY/MM/DD

	STR_DATE_FORMAT_ISO8601, // YYYY-MM-DD

	// special constant.
	STR_DATE_FORMAT_DEFAULT = -1,
} str_date_format_t;

typedef enum {
	STR_TIME_FORMAT_12HR, // 11:27 PM (North America, Australia, default),
	STR_TIME_FORMAT_24HR, // 23:27    (everyone else)

	// special constant.
	STR_TIME_FORMAT_DEFAULT = -1,
} str_time_format_t;

char *str_date_from_tm(struct tm *tm, char buf[27], str_date_format_t format);
char *str_time_from_tm(struct tm *tm, char buf[27], str_time_format_t format);
char *str_from_date(time_t when, char buf[27], str_date_format_t format);
char *str_from_time(time_t when, char buf[27], str_time_format_t format);

/* string handling */
int str_ltrim(char *s); // return: length of string after trimming
int str_rtrim(char *s); // ditto
int str_trim(char *s);  // ditto
int str_break(const char *s, char c, char **first, char **second);
char *str_escape(const char *source, int space_hack);
char *str_unescape(const char *source);
int str_get_num_lines(const char *text);
char *str_concat(const char *s, ...);
int str_realloc(char **output, const char *input, size_t len);

/* convert a C string to a pascal string; truncated can be NULL */
void str_to_pascal(const char *cstr, unsigned char pstr[256], int *truncated);
void str_from_pascal(const unsigned char pstr[256], char cstr[256]);

#endif