2 * Copyright (c) 1989, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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32 #include <sys/types.h>
35 #define SECSPERDAY (24 * 60 * 60)
36 #define SECSPERHOUR (60 * 60)
37 #define SECSPERMINUTE (60)
38 #define MINSPERHOUR (60)
39 #define HOURSPERDAY (24)
40 #define FSECSPERDAY (24.0 * 60.0 * 60.0)
41 #define FSECSPERHOUR (60.0 * 60.0)
42 #define FSECSPERMINUTE (60.0)
43 #define FMINSPERHOUR (60.0)
44 #define FHOURSPERDAY (24.0)
46 #define DAYSPERYEAR 365
47 #define DAYSPERLEAPYEAR 366
49 /* Not yet categorized */
51 extern struct passwd *pw;
54 extern const char *calendarFile;
56 extern struct fixs neaster, npaskha, ncny, nfullmoon, nnewmoon;
57 extern struct fixs nmarequinox, nsepequinox, njunsolstice, ndecsolstice;
58 extern double UTCOffset;
59 extern int EastLongitude;
61 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
63 /* Flags to determine the returned values by determinestyle() in parsedata.c */
64 #define F_NONE 0x00000
65 #define F_MONTH 0x00001
66 #define F_DAYOFWEEK 0x00002
67 #define F_DAYOFMONTH 0x00004
68 #define F_MODIFIERINDEX 0x00008
69 #define F_MODIFIEROFFSET 0x00010
70 #define F_SPECIALDAY 0x00020
71 #define F_ALLMONTH 0x00040
72 #define F_ALLDAY 0x00080
73 #define F_VARIABLE 0x00100
74 #define F_EASTER 0x00200
76 #define F_PASKHA 0x00800
77 #define F_NEWMOON 0x01000
78 #define F_FULLMOON 0x02000
79 #define F_MAREQUINOX 0x04000
80 #define F_SEPEQUINOX 0x08000
81 #define F_JUNSOLSTICE 0x10000
82 #define F_DECSOLSTICE 0x20000
83 #define F_YEAR 0x40000
85 #define STRING_EASTER "Easter"
86 #define STRING_PASKHA "Paskha"
87 #define STRING_CNY "ChineseNewYear"
88 #define STRING_NEWMOON "NewMoon"
89 #define STRING_FULLMOON "FullMoon"
90 #define STRING_MAREQUINOX "MarEquinox"
91 #define STRING_SEPEQUINOX "SepEquinox"
92 #define STRING_JUNSOLSTICE "JunSolstice"
93 #define STRING_DECSOLSTICE "DecSolstice"
95 #define MAXCOUNT 125 /* Random number of maximum number of
96 * repeats of an event. Should be 52
97 * (number of weeks per year), if you
98 * want to show two years then it
99 * should be 104. If you are seeing
100 * more than this you are using this
105 * All the astronomical calculations are carried out for the meridian 120
106 * degrees east of Greenwich.
108 #define UTCOFFSET_CNY 8.0
110 extern int debug; /* show parsing of the input */
111 extern int year1, year2;
115 * Event sorting related functions:
116 * - Use event_add() to create a new event
117 * - Use event_continue() to add more text to the last added event
118 * - Use event_print_all() to display them in time chronological order
120 struct event *event_add(int, int, int, char *, int, char *, char *);
121 void event_continue(struct event *events, char *txt);
122 void event_print_all(FILE *fp);
141 extern const char *days[];
142 extern const char *fdays[];
143 extern const char *fmonths[];
144 extern const char *months[];
145 extern const char *sequences[];
146 extern struct fixs fndays[8]; /* full national days names */
147 extern struct fixs fnmonths[13]; /* full national months names */
148 extern struct fixs ndays[8]; /* short national days names */
149 extern struct fixs nmonths[13]; /* short national month names */
150 extern struct fixs nsequences[10];
152 void setnnames(void);
153 void setnsequences(char *);
156 extern const struct tm tm0;
157 extern char dayname[];
158 void settimes(time_t,int before, int after, int friday, struct tm *tp1, struct tm *tp2);
159 time_t Mktime(char *);
162 int parsedaymonth(char *, int *, int *, int *, int *, char **);
163 void dodebug(char *type);
167 void closecal(FILE *);
168 FILE *opencalin(void);
169 FILE *opencalout(void);
173 FILE *fincludegets(char *buf, int size, FILE *fp);
175 /* ostern.c / paskha.c */
181 extern int cumdaytab[][14];
182 extern int monthdaytab[][14];
183 extern int debug_remember;
184 void generatedates(struct tm *tp1, struct tm *tp2);
185 void dumpdates(void);
186 int remember_ymd(int y, int m, int d);
187 int remember_yd(int y, int d, int *rm, int *rd);
188 int first_dayofweek_of_year(int y);
189 int first_dayofweek_of_month(int y, int m);
190 int walkthrough_dates(struct event **e);
191 void addtodate(struct event *e, int year, int month, int day);
195 void pom(int year, double UTCoffset, int *fms, int *nms);
196 void fpom(int year, double utcoffset, double *ffms, double *fnms);
199 void equinoxsolstice(int year, double UTCoffset, int *equinoxdays, int *solsticedays);
200 void fequinoxsolstice(int year, double UTCoffset, double *equinoxdays, double *solsticedays);
201 int calculatesunlongitude30(int year, int degreeGMToffset, int *ichinesemonths);