2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
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8 * modification, are permitted provided that the following conditions
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34 #include <sys/types.h>
37 #define SECSPERDAY (24 * 60 * 60)
38 #define SECSPERHOUR (60 * 60)
39 #define SECSPERMINUTE (60)
40 #define MINSPERHOUR (60)
41 #define HOURSPERDAY (24)
42 #define FSECSPERDAY (24.0 * 60.0 * 60.0)
43 #define FSECSPERHOUR (60.0 * 60.0)
44 #define FSECSPERMINUTE (60.0)
45 #define FMINSPERHOUR (60.0)
46 #define FHOURSPERDAY (24.0)
48 #define DAYSPERYEAR 365
49 #define DAYSPERLEAPYEAR 366
51 /* Not yet categorized */
53 extern struct passwd *pw;
56 extern const char *calendarFile;
58 extern struct fixs neaster, npaskha, ncny, nfullmoon, nnewmoon;
59 extern struct fixs nmarequinox, nsepequinox, njunsolstice, ndecsolstice;
60 extern double UTCOffset;
61 extern int EastLongitude;
63 extern const char *outputEncoding;
66 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
68 /* Flags to determine the returned values by determinestyle() in parsedata.c */
69 #define F_NONE 0x00000
70 #define F_MONTH 0x00001
71 #define F_DAYOFWEEK 0x00002
72 #define F_DAYOFMONTH 0x00004
73 #define F_MODIFIERINDEX 0x00008
74 #define F_MODIFIEROFFSET 0x00010
75 #define F_SPECIALDAY 0x00020
76 #define F_ALLMONTH 0x00040
77 #define F_ALLDAY 0x00080
78 #define F_VARIABLE 0x00100
79 #define F_EASTER 0x00200
81 #define F_PASKHA 0x00800
82 #define F_NEWMOON 0x01000
83 #define F_FULLMOON 0x02000
84 #define F_MAREQUINOX 0x04000
85 #define F_SEPEQUINOX 0x08000
86 #define F_JUNSOLSTICE 0x10000
87 #define F_DECSOLSTICE 0x20000
88 #define F_YEAR 0x40000
90 #define STRING_EASTER "Easter"
91 #define STRING_PASKHA "Paskha"
92 #define STRING_CNY "ChineseNewYear"
93 #define STRING_NEWMOON "NewMoon"
94 #define STRING_FULLMOON "FullMoon"
95 #define STRING_MAREQUINOX "MarEquinox"
96 #define STRING_SEPEQUINOX "SepEquinox"
97 #define STRING_JUNSOLSTICE "JunSolstice"
98 #define STRING_DECSOLSTICE "DecSolstice"
100 #define MAXCOUNT 125 /* Random number of maximum number of
101 * repeats of an event. Should be 52
102 * (number of weeks per year), if you
103 * want to show two years then it
104 * should be 104. If you are seeing
105 * more than this you are using this
110 * All the astronomical calculations are carried out for the meridian 120
111 * degrees east of Greenwich.
113 #define UTCOFFSET_CNY 8.0
115 extern int debug; /* show parsing of the input */
116 extern int year1, year2;
120 * Event sorting related functions:
121 * - Use event_add() to create a new event
122 * - Use event_continue() to add more text to the last added event
123 * - Use event_print_all() to display them in time chronological order
125 struct event *event_add(int, int, int, char *, int, char *, char *);
126 void event_continue(struct event *events, char *txt);
127 void event_print_all(FILE *fp);
146 extern const char *days[];
147 extern const char *fdays[];
148 extern const char *fmonths[];
149 extern const char *months[];
150 extern const char *sequences[];
151 extern struct fixs fndays[8]; /* full national days names */
152 extern struct fixs fnmonths[13]; /* full national months names */
153 extern struct fixs ndays[8]; /* short national days names */
154 extern struct fixs nmonths[13]; /* short national month names */
155 extern struct fixs nsequences[10];
157 void setnnames(void);
158 void setnsequences(char *);
161 extern const struct tm tm0;
162 extern char dayname[];
163 void settimes(time_t,int before, int after, int friday, struct tm *tp1, struct tm *tp2);
164 time_t Mktime(char *);
167 int parsedaymonth(char *, int *, int *, int *, int *, char **);
168 void dodebug(char *type);
172 void closecal(FILE *);
173 FILE *opencalin(void);
174 FILE *opencalout(void);
176 /* ostern.c / paskha.c */
182 extern int cumdaytab[][14];
183 extern int monthdaytab[][14];
184 extern int debug_remember;
185 void generatedates(struct tm *tp1, struct tm *tp2);
186 void dumpdates(void);
187 int remember_ymd(int y, int m, int d);
188 int remember_yd(int y, int d, int *rm, int *rd);
189 int first_dayofweek_of_year(int y);
190 int first_dayofweek_of_month(int y, int m);
191 int walkthrough_dates(struct event **e);
192 void addtodate(struct event *e, int year, int month, int day);
196 void pom(int year, double UTCoffset, int *fms, int *nms);
197 void fpom(int year, double utcoffset, double *ffms, double *fnms);
200 void equinoxsolstice(int year, double UTCoffset, int *equinoxdays, int *solsticedays);
201 void fequinoxsolstice(int year, double UTCoffset, double *equinoxdays, double *solsticedays);
202 int calculatesunlongitude30(int year, int degreeGMToffset, int *ichinesemonths);
205 void set_new_encoding(void);