/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2020 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Aaron LI * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef DAYS_H_ #define DAYS_H_ /* IDs of special days */ enum { SD_NONE, SD_EASTER, SD_PASKHA, SD_ADVENT, SD_CNY, SD_CQINGMING, SD_CJIEQI, SD_MAREQUINOX, SD_SEPEQUINOX, SD_JUNSOLSTICE, SD_DECSOLSTICE, SD_NEWMOON, SD_FULLMOON, }; struct cal_day; struct specialday { int id; /* enum ID of the special day */ const char *name; /* name of the special day */ size_t len; /* length of the name */ char *n_name; /* national name of the special day */ size_t n_len; /* length of the national name */ /* function to find days of the special day in [rd1, rd2] */ int (*find_days)(int offset, struct cal_day **dayp, char **edp); }; extern struct specialday specialdays[]; int find_days_ymd(int year, int month, int day, struct cal_day **dayp, char **edp); int find_days_dom(int dom, struct cal_day **dayp, char **edp); int find_days_month(int month, struct cal_day **dayp, char **edp); int find_days_mdow(int month, int dow, int index, struct cal_day **dayp, char **edp); #endif