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Commit | Line | Data |
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6dbe3af9 KZ |
1 | /* |
2 | * Copyright (c) 1989, 1993, 1994 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Kim Letkeman. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
35 | */ | |
36 | ||
5c36a0eb | 37 | /* 1999-02-01 Jean-Francois Bignolles: added option '-m' to display |
d162fcb5 | 38 | * monday as the first day of the week. |
b50945d4 | 39 | * 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL> |
7eda085c KZ |
40 | * - added Native Language Support |
41 | * | |
d162fcb5 | 42 | * 2000-09-01 Michael Charles Pruznick <dummy@netwiz.net> |
66ee8158 KZ |
43 | * Added "-3" option to print prev/next month with current. |
44 | * Added over-ridable default NUM_MONTHS and "-1" option to | |
45 | * get traditional output when -3 is the default. I hope that | |
46 | * enough people will like -3 as the default that one day the | |
47 | * product can be shipped that way. | |
e8f26419 KZ |
48 | * |
49 | * 2001-05-07 Pablo Saratxaga <pablo@mandrakesoft.com> | |
50 | * Fixed the bugs with multi-byte charset (zg: cjk, utf-8) | |
51 | * displaying. made the 'month year' ("%s %d") header translatable | |
52 | * so it can be adapted to conventions used by different languages | |
53 | * added support to read "first_weekday" locale information | |
54 | * still to do: support for 'cal_direction' (will require a major | |
55 | * rewrite of the displaying) and proper handling of RTL scripts | |
5c36a0eb KZ |
56 | */ |
57 | ||
6dbe3af9 KZ |
58 | #include <sys/types.h> |
59 | ||
60 | #include <ctype.h> | |
022df321 | 61 | #include <getopt.h> |
6dbe3af9 KZ |
62 | #include <stdio.h> |
63 | #include <stdlib.h> | |
64 | #include <string.h> | |
65 | #include <time.h> | |
66 | #include <unistd.h> | |
37d6897f | 67 | #include <errno.h> |
17282538 KZ |
68 | |
69 | #include "c.h" | |
c05a80ca | 70 | #include "closestream.h" |
7b353df2 | 71 | #include "colors.h" |
7eda085c | 72 | #include "nls.h" |
104b92f8 | 73 | #include "mbsalign.h" |
022df321 | 74 | #include "strutils.h" |
726f69e2 | 75 | |
310170b8 | 76 | #if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) |
4aefe5e8 SK |
77 | # ifdef HAVE_NCURSES_H |
78 | # include <ncurses.h> | |
79 | # elif defined(HAVE_NCURSES_NCURSES_H) | |
80 | # include <ncurses/ncurses.h> | |
81 | # endif | |
82 | # include <term.h> | |
83 | ||
84 | static void my_setupterm(const char *term, int fildes, int *errret) | |
85 | { | |
86 | setupterm((char *)term, fildes, errret); | |
d162fcb5 KZ |
87 | } |
88 | ||
4aefe5e8 SK |
89 | static void my_putstring(char *s) |
90 | { | |
91 | putp(s); | |
d162fcb5 KZ |
92 | } |
93 | ||
4aefe5e8 SK |
94 | static const char *my_tgetstr(char *s __attribute__((__unused__)), char *ss) |
95 | { | |
96 | const char *ret = tigetstr(ss); | |
97 | if (!ret || ret == (char *)-1) | |
98 | return ""; | |
99 | else | |
100 | return ret; | |
d162fcb5 KZ |
101 | } |
102 | ||
48d7b13a | 103 | #elif defined(HAVE_LIBTERMCAP) |
4aefe5e8 | 104 | # include <termcap.h> |
d162fcb5 KZ |
105 | |
106 | char termbuffer[4096]; | |
107 | char tcbuffer[4096]; | |
108 | char *strbuf = termbuffer; | |
109 | ||
4aefe5e8 SK |
110 | static void my_setupterm(const char *term, int fildes, int *errret) |
111 | { | |
112 | *errret = tgetent(tcbuffer, term); | |
d162fcb5 KZ |
113 | } |
114 | ||
4aefe5e8 SK |
115 | static void my_putstring(char *s) |
116 | { | |
117 | tputs(s, 1, putchar); | |
d162fcb5 KZ |
118 | } |
119 | ||
4aefe5e8 SK |
120 | static const char *my_tgetstr(char *s, char *ss __attribute__((__unused__))) |
121 | { | |
122 | const char *ret = tgetstr(s, &strbuf); | |
123 | if (!ret) | |
124 | return ""; | |
125 | else | |
126 | return ret; | |
d162fcb5 KZ |
127 | } |
128 | ||
4aefe5e8 | 129 | #else /* ! (HAVE_LIBTERMCAP || HAVE_LIBNCURSES || HAVE_LIBNCURSESW) */ |
f4061938 | 130 | |
4aefe5e8 SK |
131 | static void my_putstring(char *s) |
132 | { | |
133 | fputs(s, stdout); | |
f4061938 KZ |
134 | } |
135 | ||
4aefe5e8 | 136 | #endif /* end of LIBTERMCAP / NCURSES */ |
f4061938 KZ |
137 | |
138 | ||
d162fcb5 KZ |
139 | const char *term=""; |
140 | const char *Senter="", *Sexit="";/* enter and exit standout mode */ | |
94b26919 KZ |
141 | int Slen; /* strlen of Senter+Sexit */ |
142 | char *Hrow; /* pointer to highlighted row in month */ | |
d162fcb5 | 143 | |
e8f26419 | 144 | #include "widechar.h" |
95f1bdee | 145 | |
66ee8158 KZ |
146 | /* allow compile-time define to over-ride default */ |
147 | #ifndef NUM_MONTHS | |
148 | #define NUM_MONTHS 1 | |
149 | #endif | |
150 | ||
151 | #if ( NUM_MONTHS != 1 && NUM_MONTHS !=3 ) | |
152 | #error NUM_MONTHS must be 1 or 3 | |
153 | #endif | |
154 | ||
5f845cb7 SK |
155 | enum { |
156 | SUNDAY = 0, | |
157 | MONDAY, | |
158 | TUESDAY, | |
159 | WEDNESDAY, | |
160 | THURSDAY, | |
161 | FRIDAY, | |
162 | SATURDAY, | |
163 | DAYS_IN_WEEK | |
164 | }; | |
6dbe3af9 | 165 | |
5f845cb7 SK |
166 | #define FIRST_WEEKDAY SATURDAY /* Jan 1st, 1 was a Saturday */ |
167 | #define REFORMATION_WEEKDAY THURSDAY /* after reformation it was Thursday */ | |
168 | #define REFORMATION_YEAR 1752 /* Signed-off-by: Lord Chesterfield */ | |
169 | #define REFORMATION_MONTH 9 /* September */ | |
d162fcb5 KZ |
170 | #define FIRST_MISSING_DAY 639799 /* 3 Sep 1752 */ |
171 | #define NUMBER_MISSING_DAYS 11 /* 11 day correction */ | |
6dbe3af9 | 172 | |
5f845cb7 SK |
173 | #define DAYS_IN_YEAR 365 /* the common case, leap years are calculated */ |
174 | #define MONTHS_IN_YEAR 12 | |
175 | #define DAYS_IN_MONTH 31 | |
f06602a4 | 176 | #define MAXDAYS 42 /* slots in a month array */ |
6dbe3af9 KZ |
177 | #define SPACE -1 /* used in day array */ |
178 | ||
5f845cb7 SK |
179 | #define SMALLEST_YEAR 1 |
180 | #define GREATEST_YEAR 9999 | |
181 | ||
182 | #define DAY_LEN 3 /* 3 spaces per day */ | |
183 | #define WEEK_LEN (DAYS_IN_WEEK * DAY_LEN) | |
184 | #define HEAD_SEP 2 | |
b283141c | 185 | #define MONTH_COLS 3 /* month columns in year view */ |
5f845cb7 SK |
186 | |
187 | #define J_DAY_LEN 4 /* 4 spaces per day */ | |
188 | #define J_WEEK_LEN (DAYS_IN_WEEK * J_DAY_LEN) | |
189 | #define J_HEAD_SEP 2 | |
b283141c | 190 | #define J_MONTH_COLS 2 |
5f845cb7 SK |
191 | |
192 | #define TODAY_FLAG 0x400 /* flag day for highlighting */ | |
193 | ||
194 | #define FMT_ST_LINES 8 | |
195 | #define FMT_ST_CHARS 300 /* 90 suffices in most locales */ | |
196 | struct fmt_st | |
197 | { | |
198 | char s[FMT_ST_LINES][FMT_ST_CHARS]; | |
199 | }; | |
200 | ||
6dbe3af9 KZ |
201 | static int days_in_month[2][13] = { |
202 | {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, | |
203 | {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, | |
204 | }; | |
205 | ||
e8c58289 SK |
206 | /* September 1752 is special, and has static assignments for both date |
207 | * and Julian representations. */ | |
208 | int d_sep1752[MAXDAYS / 2] = { | |
6dbe3af9 KZ |
209 | SPACE, SPACE, 1, 2, 14, 15, 16, |
210 | 17, 18, 19, 20, 21, 22, 23, | |
e8c58289 SK |
211 | 24, 25, 26, 27, 28, 29, 30 |
212 | }, j_sep1752[MAXDAYS / 2] = { | |
6dbe3af9 KZ |
213 | SPACE, SPACE, 245, 246, 258, 259, 260, |
214 | 261, 262, 263, 264, 265, 266, 267, | |
e8c58289 | 215 | 268, 269, 270, 271, 272, 273, 274 |
6dbe3af9 KZ |
216 | }, empty[MAXDAYS] = { |
217 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
218 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
219 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
220 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
221 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
f06602a4 | 222 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE |
6dbe3af9 KZ |
223 | }; |
224 | ||
e8f26419 KZ |
225 | |
226 | /* utf-8 can have up to 6 bytes per char; and an extra byte for ending \0 */ | |
b283141c | 227 | char day_headings[J_WEEK_LEN * 6 + 1]; |
0a9bead0 | 228 | /* weekstart = 1 => " M Tu W Th F S S " */ |
5f845cb7 | 229 | const char *full_month[MONTHS_IN_YEAR]; |
6dbe3af9 | 230 | |
0a9bead0 | 231 | /* 0 => sunday, 1 => monday */ |
5f845cb7 | 232 | int weekstart = SUNDAY; |
6dbe3af9 KZ |
233 | int julian; |
234 | ||
5f845cb7 | 235 | /* function prototypes */ |
3b66dfd6 SK |
236 | static int leap_year(int year); |
237 | static int centuries_since_1700(int year, int centuries); | |
238 | static int leap_years_since_year_1(int year); | |
d162fcb5 | 239 | char * ascii_day(char *, int); |
104b92f8 PB |
240 | int center_str(const char* src, char* dest, size_t dest_size, size_t width); |
241 | void center(const char *, size_t, int); | |
d162fcb5 KZ |
242 | void day_array(int, int, int, int *); |
243 | int day_in_week(int, int, int); | |
244 | int day_in_year(int, int, int); | |
b283141c | 245 | void yearly(int, int, int); |
d162fcb5 KZ |
246 | void do_monthly(int, int, int, struct fmt_st*); |
247 | void monthly(int, int, int); | |
248 | void monthly3(int, int, int); | |
249 | void trim_trailing_spaces(char *); | |
022df321 | 250 | static void __attribute__ ((__noreturn__)) usage(FILE * out); |
b283141c | 251 | void headers_init(int); |
6dbe3af9 KZ |
252 | |
253 | int | |
22853e4a | 254 | main(int argc, char **argv) { |
6dbe3af9 KZ |
255 | struct tm *local_time; |
256 | time_t now; | |
5f845cb7 | 257 | int ch, day = 0, month = 0, year = 0, yflag = 0; |
66ee8158 | 258 | int num_months = NUM_MONTHS; |
7b353df2 SK |
259 | int colormode = UL_COLORMODE_AUTO; |
260 | ||
261 | enum { | |
262 | OPT_COLOR = CHAR_MAX + 1 | |
263 | }; | |
eb63b9b8 | 264 | |
022df321 SK |
265 | static const struct option longopts[] = { |
266 | {"one", no_argument, NULL, '1'}, | |
267 | {"three", no_argument, NULL, '3'}, | |
268 | {"sunday", no_argument, NULL, 's'}, | |
269 | {"monday", no_argument, NULL, 'm'}, | |
270 | {"julian", no_argument, NULL, 'j'}, | |
271 | {"year", no_argument, NULL, 'y'}, | |
7b353df2 | 272 | {"color", optional_argument, NULL, OPT_COLOR}, |
022df321 SK |
273 | {"version", no_argument, NULL, 'V'}, |
274 | {"help", no_argument, NULL, 'h'}, | |
275 | {NULL, 0, NULL, 0} | |
276 | }; | |
277 | ||
7eda085c KZ |
278 | setlocale(LC_ALL, ""); |
279 | bindtextdomain(PACKAGE, LOCALEDIR); | |
280 | textdomain(PACKAGE); | |
c05a80ca | 281 | atexit(close_stdout); |
e8f26419 | 282 | |
310170b8 | 283 | #if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP) |
d162fcb5 KZ |
284 | if ((term = getenv("TERM"))) { |
285 | int ret; | |
5f845cb7 | 286 | my_setupterm(term, STDOUT_FILENO, &ret); |
d162fcb5 KZ |
287 | if (ret > 0) { |
288 | Senter = my_tgetstr("so","smso"); | |
289 | Sexit = my_tgetstr("se","rmso"); | |
94b26919 | 290 | Slen = strlen(Senter) + strlen(Sexit); |
d162fcb5 KZ |
291 | } |
292 | } | |
293 | #endif | |
294 | ||
612721db | 295 | /* |
0a9bead0 PB |
296 | * The traditional Unix cal utility starts the week at Sunday, |
297 | * while ISO 8601 starts at Monday. We read the start day from | |
298 | * the locale database, which can be overridden with the | |
299 | * -s (Sunday) or -m (Monday) options. | |
612721db | 300 | */ |
69cabd72 | 301 | #if HAVE_DECL__NL_TIME_WEEK_1STDAY |
0a9bead0 PB |
302 | /* |
303 | * You need to use 2 locale variables to get the first day of the week. | |
304 | * This is needed to support first_weekday=2 and first_workday=1 for | |
305 | * the rare case where working days span across 2 weeks. | |
306 | * This shell script shows the combinations and calculations involved: | |
33c17354 SK |
307 | * |
308 | * for LANG in en_US ru_RU fr_FR csb_PL POSIX; do | |
309 | * printf "%s:\t%s + %s -1 = " $LANG $(locale week-1stday first_weekday) | |
310 | * date -d"$(locale week-1stday) +$(($(locale first_weekday)-1))day" +%w | |
311 | * done | |
312 | * | |
313 | * en_US: 19971130 + 1 -1 = 0 #0 = sunday | |
314 | * ru_RU: 19971130 + 2 -1 = 1 | |
315 | * fr_FR: 19971201 + 1 -1 = 1 | |
316 | * csb_PL: 19971201 + 2 -1 = 2 | |
317 | * POSIX: 19971201 + 7 -1 = 0 | |
0a9bead0 PB |
318 | */ |
319 | { | |
aebb9522 KZ |
320 | int wfd; |
321 | union { unsigned int word; char *string; } val; | |
322 | val.string = nl_langinfo(_NL_TIME_WEEK_1STDAY); | |
323 | ||
324 | wfd = val.word; | |
0a9bead0 | 325 | wfd = day_in_week(wfd % 100, (wfd / 100) % 100, wfd / (100 * 100)); |
5f845cb7 | 326 | weekstart = (wfd + *nl_langinfo(_NL_TIME_FIRST_WEEKDAY) - 1) % DAYS_IN_WEEK; |
0a9bead0 | 327 | } |
e8f26419 | 328 | #endif |
d162fcb5 | 329 | |
022df321 | 330 | while ((ch = getopt_long(argc, argv, "13mjsyVh", longopts, NULL)) != -1) |
6dbe3af9 | 331 | switch(ch) { |
d162fcb5 KZ |
332 | case '1': |
333 | num_months = 1; /* default */ | |
334 | break; | |
335 | case '3': | |
336 | num_months = 3; | |
337 | break; | |
ffc43748 | 338 | case 's': |
5f845cb7 | 339 | weekstart = SUNDAY; /* default */ |
ffc43748 | 340 | break; |
5c36a0eb | 341 | case 'm': |
5f845cb7 | 342 | weekstart = MONDAY; |
5c36a0eb | 343 | break; |
6dbe3af9 KZ |
344 | case 'j': |
345 | julian = 1; | |
346 | break; | |
347 | case 'y': | |
348 | yflag = 1; | |
349 | break; | |
7b353df2 SK |
350 | case OPT_COLOR: |
351 | if (optarg) { | |
352 | char *p = *optarg == '=' ? optarg + 1 : optarg; | |
353 | colormode = colormode_from_string(p); | |
354 | if (colormode < 0) | |
355 | errx(EXIT_FAILURE, _("unsupported color mode: '%s'"), p); | |
356 | } | |
357 | break; | |
eb63b9b8 | 358 | case 'V': |
e421313d | 359 | printf(UTIL_LINUX_VERSION); |
37d6897f | 360 | return EXIT_SUCCESS; |
022df321 SK |
361 | case 'h': |
362 | usage(stdout); | |
6dbe3af9 KZ |
363 | case '?': |
364 | default: | |
022df321 | 365 | usage(stderr); |
6dbe3af9 KZ |
366 | } |
367 | argc -= optind; | |
368 | argv += optind; | |
369 | ||
a43145e1 RP |
370 | time(&now); |
371 | local_time = localtime(&now); | |
372 | ||
6dbe3af9 | 373 | switch(argc) { |
d7a92b89 | 374 | case 3: |
db41a429 | 375 | day = strtos32_or_err(*argv++, _("illegal day value")); |
5f845cb7 SK |
376 | if (day < 1 || DAYS_IN_MONTH < day) |
377 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), DAYS_IN_MONTH); | |
d7a92b89 | 378 | /* FALLTHROUGH */ |
6dbe3af9 | 379 | case 2: |
db41a429 | 380 | month = strtos32_or_err(*argv++, _("illegal month value: use 1-12")); |
5f845cb7 | 381 | if (month < 1 || MONTHS_IN_YEAR < month) |
022df321 | 382 | errx(EXIT_FAILURE, _("illegal month value: use 1-12")); |
6dbe3af9 KZ |
383 | /* FALLTHROUGH */ |
384 | case 1: | |
db41a429 | 385 | year = strtos32_or_err(*argv++, _("illegal year value: use 1-9999")); |
5f845cb7 | 386 | if (year < SMALLEST_YEAR || GREATEST_YEAR < year) |
022df321 | 387 | errx(EXIT_FAILURE, _("illegal year value: use 1-9999")); |
d7a92b89 PB |
388 | if (day) { |
389 | int dm = days_in_month[leap_year(year)][month]; | |
390 | if (day > dm) | |
022df321 | 391 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), dm); |
d7a92b89 | 392 | day = day_in_year(day, month, year); |
a43145e1 RP |
393 | } else if ((local_time->tm_year + 1900) == year) { |
394 | day = local_time->tm_yday + 1; | |
d7a92b89 PB |
395 | } |
396 | if (!month) | |
397 | yflag=1; | |
6dbe3af9 KZ |
398 | break; |
399 | case 0: | |
d7a92b89 | 400 | day = local_time->tm_yday + 1; |
6dbe3af9 | 401 | year = local_time->tm_year + 1900; |
d7a92b89 | 402 | month = local_time->tm_mon + 1; |
6dbe3af9 KZ |
403 | break; |
404 | default: | |
022df321 | 405 | usage(stderr); |
6dbe3af9 | 406 | } |
b283141c | 407 | headers_init(julian); |
6dbe3af9 | 408 | |
7b353df2 SK |
409 | if (!colors_init(colormode)) |
410 | day = 0; | |
d7a92b89 | 411 | |
b283141c SK |
412 | if (yflag) |
413 | yearly(day, year, julian); | |
d7a92b89 PB |
414 | else if (num_months == 1) |
415 | monthly(day, month, year); | |
416 | else if (num_months == 3) | |
417 | monthly3(day, month, year); | |
37d6897f KZ |
418 | |
419 | return EXIT_SUCCESS; | |
6dbe3af9 KZ |
420 | } |
421 | ||
3b66dfd6 SK |
422 | /* leap year -- account for gregorian reformation in 1752 */ |
423 | static int leap_year(int year) | |
424 | { | |
5f845cb7 | 425 | if (year <= REFORMATION_YEAR) |
3b66dfd6 SK |
426 | return !(year % 4); |
427 | else | |
428 | return ( !(year % 4) && (year % 100) ) || !(year % 400); | |
429 | } | |
430 | ||
431 | /* number of centuries since 1700 */ | |
432 | static int centuries_since_1700(int year, int n) | |
433 | { | |
5f845cb7 | 434 | if (year < REFORMATION_YEAR) |
3b66dfd6 SK |
435 | return 0; |
436 | else | |
5f845cb7 | 437 | return ((year / (100 * n)) - ((REFORMATION_YEAR / 100) / n)); |
3b66dfd6 SK |
438 | } |
439 | ||
440 | /* number of leap years between year 1 and this year, not inclusive */ | |
441 | static int leap_years_since_year_1(int year) | |
442 | { | |
443 | return (year / 4 - centuries_since_1700(year, 1) + | |
444 | centuries_since_1700(year, 4)); | |
445 | } | |
446 | ||
b283141c | 447 | void headers_init(int julian) |
6dbe3af9 | 448 | { |
b283141c SK |
449 | int i, wd, spaces = julian ? J_DAY_LEN - 1 : DAY_LEN - 1; |
450 | char *cur_dh = day_headings; | |
33c17354 | 451 | |
5f845cb7 | 452 | for (i = 0; i < DAYS_IN_WEEK; i++) { |
33c17354 | 453 | ssize_t space_left; |
5f845cb7 | 454 | wd = (i + weekstart) % DAYS_IN_WEEK; |
33c17354 SK |
455 | |
456 | if (i) | |
457 | strcat(cur_dh++, " "); | |
458 | space_left = | |
459 | sizeof(day_headings) - (cur_dh - day_headings); | |
b283141c | 460 | if (space_left <= spaces) |
33c17354 SK |
461 | break; |
462 | cur_dh += | |
463 | center_str(nl_langinfo(ABDAY_1 + wd), cur_dh, | |
b283141c | 464 | space_left, spaces); |
33c17354 SK |
465 | } |
466 | ||
5f845cb7 | 467 | for (i = 0; i < MONTHS_IN_YEAR; i++) |
33c17354 | 468 | full_month[i] = nl_langinfo(MON_1 + i); |
6dbe3af9 KZ |
469 | } |
470 | ||
471 | void | |
d162fcb5 | 472 | do_monthly(int day, int month, int year, struct fmt_st *out) { |
ff87defc | 473 | int col, row, days[MAXDAYS]; |
d162fcb5 KZ |
474 | char *p, lineout[FMT_ST_CHARS]; |
475 | int width = (julian ? J_WEEK_LEN : WEEK_LEN) - 1; | |
476 | ||
477 | day_array(day, month, year, days); | |
478 | ||
479 | /* | |
480 | * %s is the month name, %d the year number. | |
0e6f4a20 | 481 | * you can change the order and/or add something here; eg for |
e8f26419 KZ |
482 | * Basque the translation should be: "%2$dko %1$s", and |
483 | * the Vietnamese should be "%s na(m %d", etc. | |
484 | */ | |
ff87defc PB |
485 | snprintf(lineout, sizeof(lineout), _("%s %d"), |
486 | full_month[month - 1], year); | |
17282538 | 487 | center_str(lineout, out->s[0], ARRAY_SIZE(out->s[0]), width); |
d162fcb5 | 488 | |
b283141c | 489 | snprintf(out->s[1], FMT_ST_CHARS, "%s", day_headings); |
5f845cb7 | 490 | for (row = 0; row < DAYS_IN_WEEK - 1; row++) { |
94b26919 | 491 | int has_hl = 0; |
5f845cb7 SK |
492 | for (col = 0, p = lineout; col < DAYS_IN_WEEK; col++) { |
493 | int xd = days[row * DAYS_IN_WEEK + col]; | |
94b26919 KZ |
494 | if (xd != SPACE && (xd & TODAY_FLAG)) |
495 | has_hl = 1; | |
496 | p = ascii_day(p, xd); | |
497 | } | |
6dbe3af9 KZ |
498 | *p = '\0'; |
499 | trim_trailing_spaces(lineout); | |
ff87defc | 500 | snprintf(out->s[row+2], FMT_ST_CHARS, "%s", lineout); |
94b26919 KZ |
501 | if (has_hl) |
502 | Hrow = out->s[row+2]; | |
66ee8158 KZ |
503 | } |
504 | } | |
505 | ||
506 | void | |
d162fcb5 | 507 | monthly(int day, int month, int year) { |
66ee8158 KZ |
508 | int i; |
509 | struct fmt_st out; | |
510 | ||
d162fcb5 KZ |
511 | do_monthly(day, month, year, &out); |
512 | for (i = 0; i < FMT_ST_LINES; i++) { | |
f4061938 | 513 | my_putstring(out.s[i]); |
e66ba1bf | 514 | my_putstring("\n"); |
66ee8158 KZ |
515 | } |
516 | } | |
517 | ||
518 | void | |
d162fcb5 KZ |
519 | monthly3(int day, int month, int year) { |
520 | char lineout[FMT_ST_CHARS]; | |
66ee8158 KZ |
521 | int i; |
522 | int width; | |
523 | struct fmt_st out_prev; | |
524 | struct fmt_st out_curm; | |
525 | struct fmt_st out_next; | |
526 | int prev_month, prev_year; | |
527 | int next_month, next_year; | |
528 | ||
d162fcb5 | 529 | if (month == 1) { |
5f845cb7 | 530 | prev_month = MONTHS_IN_YEAR; |
d162fcb5 KZ |
531 | prev_year = year - 1; |
532 | } else { | |
533 | prev_month = month - 1; | |
534 | prev_year = year; | |
66ee8158 | 535 | } |
5f845cb7 | 536 | if (month == MONTHS_IN_YEAR) { |
d162fcb5 KZ |
537 | next_month = 1; |
538 | next_year = year + 1; | |
539 | } else { | |
540 | next_month = month + 1; | |
541 | next_year = year; | |
66ee8158 KZ |
542 | } |
543 | ||
d162fcb5 KZ |
544 | do_monthly(day, prev_month, prev_year, &out_prev); |
545 | do_monthly(day, month, year, &out_curm); | |
546 | do_monthly(day, next_month, next_year, &out_next); | |
94b26919 | 547 | |
33c17354 | 548 | width = (julian ? J_WEEK_LEN : WEEK_LEN) -1; |
e66ba1bf KZ |
549 | for (i = 0; i < 2; i++) { |
550 | snprintf(lineout, sizeof(lineout), | |
551 | "%s %s %s\n", out_prev.s[i], out_curm.s[i], out_next.s[i]); | |
552 | my_putstring(lineout); | |
553 | } | |
d162fcb5 | 554 | for (i = 2; i < FMT_ST_LINES; i++) { |
94b26919 KZ |
555 | int w1, w2, w3; |
556 | w1 = w2 = w3 = width; | |
557 | ||
310170b8 | 558 | #if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP) |
33c17354 SK |
559 | /* adjust width to allow for non printable characters */ |
560 | w1 += (out_prev.s[i] == Hrow ? Slen : 0); | |
561 | w2 += (out_curm.s[i] == Hrow ? Slen : 0); | |
562 | w3 += (out_next.s[i] == Hrow ? Slen : 0); | |
94b26919 | 563 | #endif |
17282538 | 564 | snprintf(lineout, sizeof(lineout), "%-*s %-*s %-*s\n", |
94b26919 KZ |
565 | w1, out_prev.s[i], |
566 | w2, out_curm.s[i], | |
567 | w3, out_next.s[i]); | |
568 | ||
d162fcb5 | 569 | my_putstring(lineout); |
6dbe3af9 KZ |
570 | } |
571 | } | |
572 | ||
573 | void | |
b283141c | 574 | yearly(int day, int year, int julian) { |
6dbe3af9 | 575 | int col, *dp, i, month, row, which_cal; |
b283141c | 576 | int maxrow, sep_len, week_len; |
5f845cb7 | 577 | int days[MONTHS_IN_YEAR][MAXDAYS]; |
d162fcb5 | 578 | char *p, lineout[100]; |
6dbe3af9 | 579 | |
b283141c SK |
580 | if (julian) { |
581 | maxrow = J_MONTH_COLS; | |
582 | sep_len = J_HEAD_SEP; | |
583 | week_len = J_WEEK_LEN; | |
584 | } else { | |
585 | maxrow = MONTH_COLS; | |
586 | sep_len = HEAD_SEP; | |
587 | week_len = WEEK_LEN; | |
588 | } | |
ff87defc | 589 | snprintf(lineout, sizeof(lineout), "%d", year); |
b283141c SK |
590 | /* 2013-04-28: The -1 near sep_len makes year header to be |
591 | * aligned exactly how it has been aligned for long time, but it | |
592 | * is unexplainable. */ | |
593 | center(lineout, (week_len + sep_len) * maxrow - sep_len - 1, 0); | |
e66ba1bf | 594 | my_putstring("\n\n"); |
d162fcb5 | 595 | |
5f845cb7 | 596 | for (i = 0; i < MONTHS_IN_YEAR; i++) |
d162fcb5 | 597 | day_array(day, i + 1, year, days[i]); |
b283141c SK |
598 | for (month = 0; month < MONTHS_IN_YEAR; month += maxrow) { |
599 | center(full_month[month], week_len - 1, sep_len + 1); | |
600 | if (julian) { | |
601 | center(full_month[month + 1], week_len - 1, 0); | |
602 | } else { | |
603 | center(full_month[month + 1], week_len - 1, sep_len + 1); | |
604 | center(full_month[month + 2], week_len - 1, 0); | |
605 | } | |
606 | if (julian) | |
607 | snprintf(lineout, sizeof(lineout), | |
608 | "\n%s%*s %s\n", day_headings, sep_len, "", day_headings); | |
609 | else | |
610 | snprintf(lineout, sizeof(lineout), | |
611 | "\n%s%*s %s%*s %s\n", day_headings, sep_len, | |
612 | "", day_headings, sep_len, "", day_headings); | |
e66ba1bf | 613 | my_putstring(lineout); |
5f845cb7 | 614 | for (row = 0; row < DAYS_IN_WEEK - 1; row++) { |
d162fcb5 | 615 | p = lineout; |
b283141c | 616 | for (which_cal = 0; which_cal < maxrow; which_cal++) { |
5f845cb7 SK |
617 | dp = &days[month + which_cal][row * DAYS_IN_WEEK]; |
618 | for (col = 0; col < DAYS_IN_WEEK; col++) | |
d162fcb5 KZ |
619 | p = ascii_day(p, *dp++); |
620 | p += sprintf(p, " "); | |
6dbe3af9 KZ |
621 | } |
622 | *p = '\0'; | |
623 | trim_trailing_spaces(lineout); | |
f4061938 | 624 | my_putstring(lineout); |
e66ba1bf | 625 | my_putstring("\n"); |
6dbe3af9 KZ |
626 | } |
627 | } | |
e66ba1bf | 628 | my_putstring("\n"); |
6dbe3af9 KZ |
629 | } |
630 | ||
631 | /* | |
632 | * day_array -- | |
633 | * Fill in an array of 42 integers with a calendar. Assume for a moment | |
634 | * that you took the (maximum) 6 rows in a calendar and stretched them | |
635 | * out end to end. You would have 42 numbers or spaces. This routine | |
636 | * builds that array for any month from Jan. 1 through Dec. 9999. | |
637 | */ | |
638 | void | |
d162fcb5 KZ |
639 | day_array(int day, int month, int year, int *days) { |
640 | int julday, daynum, dw, dm; | |
e8c58289 SK |
641 | int *sep1752; |
642 | ||
643 | memcpy(days, empty, MAXDAYS * sizeof(int)); | |
644 | if (year == REFORMATION_YEAR && month == REFORMATION_MONTH) { | |
645 | sep1752 = julian ? j_sep1752 : d_sep1752; | |
646 | memcpy(days, sep1752 + weekstart, | |
647 | ((MAXDAYS / 2) - weekstart) * sizeof(int)); | |
648 | for (dm = 0; dm < MAXDAYS / 2; dm++) | |
649 | if (j_sep1752[dm] == day) | |
d7a92b89 | 650 | days[dm] |= TODAY_FLAG; |
6dbe3af9 KZ |
651 | return; |
652 | } | |
6dbe3af9 | 653 | dm = days_in_month[leap_year(year)][month]; |
5f845cb7 | 654 | dw = (day_in_week(1, month, year) - weekstart + DAYS_IN_WEEK) % DAYS_IN_WEEK; |
d162fcb5 KZ |
655 | julday = day_in_year(1, month, year); |
656 | daynum = julian ? julday : 1; | |
657 | while (dm--) { | |
658 | days[dw] = daynum++; | |
659 | if (julday++ == day) | |
660 | days[dw] |= TODAY_FLAG; | |
661 | dw++; | |
662 | } | |
6dbe3af9 KZ |
663 | } |
664 | ||
665 | /* | |
666 | * day_in_year -- | |
667 | * return the 1 based day number within the year | |
668 | */ | |
669 | int | |
d162fcb5 | 670 | day_in_year(int day, int month, int year) { |
6dbe3af9 KZ |
671 | int i, leap; |
672 | ||
673 | leap = leap_year(year); | |
674 | for (i = 1; i < month; i++) | |
675 | day += days_in_month[leap][i]; | |
d162fcb5 | 676 | return day; |
6dbe3af9 KZ |
677 | } |
678 | ||
679 | /* | |
680 | * day_in_week | |
681 | * return the 0 based day number for any date from 1 Jan. 1 to | |
682 | * 31 Dec. 9999. Assumes the Gregorian reformation eliminates | |
683 | * 3 Sep. 1752 through 13 Sep. 1752. Returns Thursday for all | |
684 | * missing days. | |
685 | */ | |
686 | int | |
d162fcb5 | 687 | day_in_week(int day, int month, int year) { |
6dbe3af9 KZ |
688 | long temp; |
689 | ||
5f845cb7 SK |
690 | temp = |
691 | (long)(year - SMALLEST_YEAR) * DAYS_IN_YEAR + | |
692 | leap_years_since_year_1(year - SMALLEST_YEAR) | |
6dbe3af9 KZ |
693 | + day_in_year(day, month, year); |
694 | if (temp < FIRST_MISSING_DAY) | |
5f845cb7 | 695 | return ((temp - 1 + FIRST_WEEKDAY) % DAYS_IN_WEEK); |
6dbe3af9 | 696 | if (temp >= (FIRST_MISSING_DAY + NUMBER_MISSING_DAYS)) |
5f845cb7 SK |
697 | return (((temp - 1 + FIRST_WEEKDAY) - NUMBER_MISSING_DAYS) % DAYS_IN_WEEK); |
698 | return(REFORMATION_WEEKDAY); | |
6dbe3af9 KZ |
699 | } |
700 | ||
d162fcb5 KZ |
701 | char * |
702 | ascii_day(char *p, int day) { | |
6dbe3af9 | 703 | int display, val; |
d162fcb5 | 704 | int highlight = 0; |
6dbe3af9 KZ |
705 | static char *aday[] = { |
706 | "", | |
707 | " 1", " 2", " 3", " 4", " 5", " 6", " 7", | |
708 | " 8", " 9", "10", "11", "12", "13", "14", | |
709 | "15", "16", "17", "18", "19", "20", "21", | |
710 | "22", "23", "24", "25", "26", "27", "28", | |
711 | "29", "30", "31", | |
712 | }; | |
713 | ||
714 | if (day == SPACE) { | |
d162fcb5 KZ |
715 | int len = julian ? J_DAY_LEN : DAY_LEN; |
716 | memset(p, ' ', len); | |
717 | return p+len; | |
718 | } | |
719 | if (day & TODAY_FLAG) { | |
720 | day &= ~TODAY_FLAG; | |
8c6c72bf | 721 | p += sprintf(p, "%s", Senter); |
d162fcb5 | 722 | highlight = 1; |
6dbe3af9 KZ |
723 | } |
724 | if (julian) { | |
726f69e2 | 725 | if ((val = day / 100)) { |
6dbe3af9 KZ |
726 | day %= 100; |
727 | *p++ = val + '0'; | |
728 | display = 1; | |
729 | } else { | |
730 | *p++ = ' '; | |
731 | display = 0; | |
732 | } | |
733 | val = day / 10; | |
734 | if (val || display) | |
735 | *p++ = val + '0'; | |
736 | else | |
737 | *p++ = ' '; | |
738 | *p++ = day % 10 + '0'; | |
739 | } else { | |
740 | *p++ = aday[day][0]; | |
741 | *p++ = aday[day][1]; | |
742 | } | |
d162fcb5 | 743 | if (highlight) |
8c6c72bf | 744 | p += sprintf(p, "%s", Sexit); |
d162fcb5 KZ |
745 | *p++ = ' '; |
746 | return p; | |
6dbe3af9 KZ |
747 | } |
748 | ||
749 | void | |
2985e383 | 750 | trim_trailing_spaces(char *s) |
6dbe3af9 KZ |
751 | { |
752 | char *p; | |
753 | ||
754 | for (p = s; *p; ++p) | |
755 | continue; | |
756 | while (p > s && isspace(*--p)) | |
757 | continue; | |
758 | if (p > s) | |
759 | ++p; | |
760 | *p = '\0'; | |
761 | } | |
762 | ||
d162fcb5 KZ |
763 | /* |
764 | * Center string, handling multibyte characters appropriately. | |
765 | * In addition if the string is too large for the width it's truncated. | |
ff87defc | 766 | * The number of trailing spaces may be 1 less than the number of leading spaces. |
d162fcb5 | 767 | */ |
ff87defc | 768 | int |
104b92f8 | 769 | center_str(const char* src, char* dest, size_t dest_size, size_t width) |
d162fcb5 | 770 | { |
104b92f8 PB |
771 | return mbsalign(src, dest, dest_size, &width, |
772 | MBS_ALIGN_CENTER, MBA_UNIBYTE_FALLBACK); | |
d162fcb5 KZ |
773 | } |
774 | ||
6dbe3af9 | 775 | void |
2985e383 | 776 | center(const char *str, size_t len, int separate) |
6dbe3af9 | 777 | { |
d162fcb5 | 778 | char lineout[FMT_ST_CHARS]; |
e66ba1bf | 779 | |
17282538 | 780 | center_str(str, lineout, ARRAY_SIZE(lineout), len); |
e66ba1bf KZ |
781 | my_putstring(lineout); |
782 | ||
783 | if (separate) { | |
784 | snprintf(lineout, sizeof(lineout), "%*s", separate, ""); | |
785 | my_putstring(lineout); | |
786 | } | |
6dbe3af9 KZ |
787 | } |
788 | ||
022df321 | 789 | static void __attribute__ ((__noreturn__)) usage(FILE * out) |
6dbe3af9 | 790 | { |
201d43fd SK |
791 | fputs(USAGE_HEADER, out); |
792 | fprintf(out, _(" %s [options] [[[day] month] year]\n"), program_invocation_short_name); | |
793 | fputs(USAGE_OPTIONS, out); | |
794 | fputs(_(" -1, --one show only current month (default)\n"), out); | |
795 | fputs(_(" -3, --three show previous, current and next month\n"), out); | |
796 | fputs(_(" -s, --sunday Sunday as first day of week\n"), out); | |
797 | fputs(_(" -m, --monday Monday as first day of week\n"), out); | |
798 | fputs(_(" -j, --julian output Julian dates\n"), out); | |
799 | fputs(_(" -y, --year show whole current year\n"), out); | |
800 | fputs(_(" --color[=<when>] colorize messages (auto, always or never)\n"), out); | |
801 | fputs(USAGE_SEPARATOR, out); | |
802 | fputs(USAGE_HELP, out); | |
803 | fputs(USAGE_VERSION, out); | |
804 | fprintf(out, USAGE_MAN_TAIL("cal(1)")); | |
022df321 | 805 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
6dbe3af9 | 806 | } |