90c72ba909
Explicitly use GNU cpp for preprocessing. Remove explicit debugging code. Change some variable names to be less confusing. Improve some comments. Improve indentation. PR: 162211 168785 MFC after: 2 weeks
197 lines
6.2 KiB
C
197 lines
6.2 KiB
C
/*-
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* Copyright (c) 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/uio.h>
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#define SECSPERDAY (24 * 60 * 60)
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#define SECSPERHOUR (60 * 60)
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#define SECSPERMINUTE (60)
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#define MINSPERHOUR (60)
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#define HOURSPERDAY (24)
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#define FSECSPERDAY (24.0 * 60.0 * 60.0)
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#define FSECSPERHOUR (60.0 * 60.0)
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#define FSECSPERMINUTE (60.0)
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#define FMINSPERHOUR (60.0)
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#define FHOURSPERDAY (24.0)
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#define DAYSPERYEAR 365
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#define DAYSPERLEAPYEAR 366
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/* Not yet categorized */
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extern struct passwd *pw;
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extern int doall;
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extern time_t t1, t2;
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extern const char *calendarFile;
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extern int yrdays;
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extern struct fixs neaster, npaskha, ncny, nfullmoon, nnewmoon;
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extern struct fixs nmarequinox, nsepequinox, njunsolstice, ndecsolstice;
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extern double UTCOffset;
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extern int EastLongitude;
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#define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
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/* Flags to determine the returned values by determinestyle() in parsedata.c */
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#define F_NONE 0x00000
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#define F_MONTH 0x00001
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#define F_DAYOFWEEK 0x00002
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#define F_DAYOFMONTH 0x00004
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#define F_MODIFIERINDEX 0x00008
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#define F_MODIFIEROFFSET 0x00010
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#define F_SPECIALDAY 0x00020
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#define F_ALLMONTH 0x00040
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#define F_ALLDAY 0x00080
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#define F_VARIABLE 0x00100
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#define F_EASTER 0x00200
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#define F_CNY 0x00400
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#define F_PASKHA 0x00800
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#define F_NEWMOON 0x01000
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#define F_FULLMOON 0x02000
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#define F_MAREQUINOX 0x04000
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#define F_SEPEQUINOX 0x08000
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#define F_JUNSOLSTICE 0x10000
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#define F_DECSOLSTICE 0x20000
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#define F_YEAR 0x40000
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#define STRING_EASTER "Easter"
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#define STRING_PASKHA "Paskha"
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#define STRING_CNY "ChineseNewYear"
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#define STRING_NEWMOON "NewMoon"
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#define STRING_FULLMOON "FullMoon"
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#define STRING_MAREQUINOX "MarEquinox"
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#define STRING_SEPEQUINOX "SepEquinox"
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#define STRING_JUNSOLSTICE "JunSolstice"
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#define STRING_DECSOLSTICE "DecSolstice"
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#define MAXCOUNT 125 /* Random number of maximum number of
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* repeats of an event. Should be 52
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* (number of weeks per year), if you
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* want to show two years then it
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* should be 104. If you are seeing
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* more than this you are using this
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* program wrong.
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*/
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/*
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* All the astronomical calculations are carried out for the meridian 120
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* degrees east of Greenwich.
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*/
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#define UTCOFFSET_CNY 8.0
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extern int debug; /* show parsing of the input */
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extern int year1, year2;
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/* events.c */
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/*
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* Event sorting related functions:
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* - Use event_add() to create a new event
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* - Use event_continue() to add more text to the last added event
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* - Use event_print_all() to display them in time chronological order
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*/
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struct event *event_add(int, int, int, char *, int, char *, char *);
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void event_continue(struct event *events, char *txt);
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void event_print_all(FILE *fp);
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struct event {
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int year;
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int month;
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int day;
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int var;
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char *date;
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char *text;
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char *extra;
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struct event *next;
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};
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/* locale.c */
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struct fixs {
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char *name;
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size_t len;
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};
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extern const char *days[];
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extern const char *fdays[];
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extern const char *fmonths[];
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extern const char *months[];
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extern const char *sequences[];
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extern struct fixs fndays[8]; /* full national days names */
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extern struct fixs fnmonths[13]; /* full national months names */
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extern struct fixs ndays[8]; /* short national days names */
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extern struct fixs nmonths[13]; /* short national month names */
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extern struct fixs nsequences[10];
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void setnnames(void);
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void setnsequences(char *);
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/* day.c */
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extern const struct tm tm0;
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extern char dayname[];
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void settimes(time_t,int before, int after, int friday, struct tm *tp1, struct tm *tp2);
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time_t Mktime(char *);
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/* parsedata.c */
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int parsedaymonth(char *, int *, int *, int *, int *, char **);
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void dodebug(char *type);
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/* io.c */
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void cal(void);
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void closecal(FILE *);
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FILE *opencal(void);
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/* ostern.c / paskha.c */
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int paskha(int);
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int easter(int);
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int j2g(int);
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/* dates.c */
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extern int cumdaytab[][14];
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extern int monthdaytab[][14];
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extern int debug_remember;
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void generatedates(struct tm *tp1, struct tm *tp2);
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void dumpdates(void);
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int remember_ymd(int y, int m, int d);
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int remember_yd(int y, int d, int *rm, int *rd);
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int first_dayofweek_of_year(int y);
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int first_dayofweek_of_month(int y, int m);
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int walkthrough_dates(struct event **e);
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void addtodate(struct event *e, int year, int month, int day);
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/* pom.c */
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#define MAXMOONS 18
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void pom(int year, double UTCoffset, int *fms, int *nms);
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void fpom(int year, double utcoffset, double *ffms, double *fnms);
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/* sunpos.c */
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void equinoxsolstice(int year, double UTCoffset, int *equinoxdays, int *solsticedays);
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void fequinoxsolstice(int year, double UTCoffset, double *equinoxdays, double *solsticedays);
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int calculatesunlongitude30(int year, int degreeGMToffset, int *ichinesemonths);
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