text: /*-
   * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   *
   * Copyright (c) 2020 The DragonFly Project.  All rights reserved.
   * Copyright (c) 1992-2009 Edwin Groothuis <edwin@FreeBSD.org>.
   * All rights reserved.
   *
   * This code is derived from software contributed to The DragonFly Project
   * by Aaron LI <aly@aaronly.me>
   *
   * 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.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 DATES_H_
  #define DATES_H_
  
  #include <stdbool.h>
  #include <stdio.h>
  
  struct event;
  struct cal_desc;
  
  struct cal_day {
  	int	rd;
  	int	year;
  	int	month;
  	int	day;
  	int	dow[3];  /* [day-of-week, index-in-month, reverse-index] */
  	bool	last_dom;  /* true if the last day of month */
  	struct event *events;
  };
  
  void	generate_dates(void);
  void	free_dates(void);
  struct cal_day *loop_dates(struct cal_day *dp);
  
  struct cal_day *find_rd(int rd, int offset);
  
  struct event *event_add(struct cal_day *dp, bool day_first, bool variable,
  			struct cal_desc *desc, char *extra);
  void	event_print_all(FILE *fp);
  
  #endif
  