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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, | |
d68f076f SK |
163 | DAYS_IN_WEEK, |
164 | NONEDAY | |
5f845cb7 | 165 | }; |
6dbe3af9 | 166 | |
5f845cb7 | 167 | #define FIRST_WEEKDAY SATURDAY /* Jan 1st, 1 was a Saturday */ |
5f845cb7 SK |
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 | 179 | #define SMALLEST_YEAR 1 |
5f845cb7 SK |
180 | |
181 | #define DAY_LEN 3 /* 3 spaces per day */ | |
182 | #define WEEK_LEN (DAYS_IN_WEEK * DAY_LEN) | |
183 | #define HEAD_SEP 2 | |
b283141c | 184 | #define MONTH_COLS 3 /* month columns in year view */ |
5f845cb7 SK |
185 | |
186 | #define J_DAY_LEN 4 /* 4 spaces per day */ | |
187 | #define J_WEEK_LEN (DAYS_IN_WEEK * J_DAY_LEN) | |
188 | #define J_HEAD_SEP 2 | |
b283141c | 189 | #define J_MONTH_COLS 2 |
5f845cb7 SK |
190 | |
191 | #define TODAY_FLAG 0x400 /* flag day for highlighting */ | |
192 | ||
e44fe471 | 193 | #define FMT_ST_LINES 9 |
5f845cb7 SK |
194 | #define FMT_ST_CHARS 300 /* 90 suffices in most locales */ |
195 | struct fmt_st | |
196 | { | |
197 | char s[FMT_ST_LINES][FMT_ST_CHARS]; | |
198 | }; | |
199 | ||
6dbe3af9 KZ |
200 | static int days_in_month[2][13] = { |
201 | {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, | |
202 | {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, | |
203 | }; | |
204 | ||
e8c58289 SK |
205 | /* September 1752 is special, and has static assignments for both date |
206 | * and Julian representations. */ | |
207 | int d_sep1752[MAXDAYS / 2] = { | |
6dbe3af9 KZ |
208 | SPACE, SPACE, 1, 2, 14, 15, 16, |
209 | 17, 18, 19, 20, 21, 22, 23, | |
e8c58289 SK |
210 | 24, 25, 26, 27, 28, 29, 30 |
211 | }, j_sep1752[MAXDAYS / 2] = { | |
6dbe3af9 KZ |
212 | SPACE, SPACE, 245, 246, 258, 259, 260, |
213 | 261, 262, 263, 264, 265, 266, 267, | |
e8c58289 | 214 | 268, 269, 270, 271, 272, 273, 274 |
6dbe3af9 KZ |
215 | }, empty[MAXDAYS] = { |
216 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, | |
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, | |
f06602a4 | 221 | SPACE, SPACE, SPACE, SPACE, SPACE, SPACE, SPACE |
6dbe3af9 KZ |
222 | }; |
223 | ||
e8f26419 KZ |
224 | |
225 | /* utf-8 can have up to 6 bytes per char; and an extra byte for ending \0 */ | |
b283141c | 226 | char day_headings[J_WEEK_LEN * 6 + 1]; |
0a9bead0 | 227 | /* weekstart = 1 => " M Tu W Th F S S " */ |
5f845cb7 | 228 | const char *full_month[MONTHS_IN_YEAR]; |
6dbe3af9 | 229 | |
0a9bead0 | 230 | /* 0 => sunday, 1 => monday */ |
5f845cb7 | 231 | int weekstart = SUNDAY; |
6dbe3af9 KZ |
232 | int julian; |
233 | ||
5f845cb7 | 234 | /* function prototypes */ |
e44fe471 | 235 | static int leap_year(long year); |
8ea0caa2 SK |
236 | static char * ascii_day(char *, int); |
237 | static int center_str(const char* src, char* dest, size_t dest_size, size_t width); | |
238 | static void center(const char *, size_t, int); | |
e44fe471 | 239 | static void day_array(int, int, long, int *); |
8ea0caa2 | 240 | static int day_in_week(int, int, int); |
e44fe471 SK |
241 | static int day_in_year(int, int, long); |
242 | static void yearly(int, long, int); | |
243 | static int do_monthly(int, int, long, struct fmt_st*, int); | |
244 | static void monthly(int, int, long); | |
245 | static int two_header_lines(int month, long year); | |
246 | static void monthly3(int, int, long); | |
022df321 | 247 | static void __attribute__ ((__noreturn__)) usage(FILE * out); |
8ea0caa2 | 248 | static void headers_init(int); |
6dbe3af9 KZ |
249 | |
250 | int | |
22853e4a | 251 | main(int argc, char **argv) { |
6dbe3af9 KZ |
252 | struct tm *local_time; |
253 | time_t now; | |
e44fe471 SK |
254 | int ch, day = 0, month = 0, yflag = 0; |
255 | long year; | |
66ee8158 | 256 | int num_months = NUM_MONTHS; |
7b353df2 SK |
257 | int colormode = UL_COLORMODE_AUTO; |
258 | ||
259 | enum { | |
260 | OPT_COLOR = CHAR_MAX + 1 | |
261 | }; | |
eb63b9b8 | 262 | |
022df321 SK |
263 | static const struct option longopts[] = { |
264 | {"one", no_argument, NULL, '1'}, | |
265 | {"three", no_argument, NULL, '3'}, | |
266 | {"sunday", no_argument, NULL, 's'}, | |
267 | {"monday", no_argument, NULL, 'm'}, | |
268 | {"julian", no_argument, NULL, 'j'}, | |
269 | {"year", no_argument, NULL, 'y'}, | |
7b353df2 | 270 | {"color", optional_argument, NULL, OPT_COLOR}, |
022df321 SK |
271 | {"version", no_argument, NULL, 'V'}, |
272 | {"help", no_argument, NULL, 'h'}, | |
273 | {NULL, 0, NULL, 0} | |
274 | }; | |
275 | ||
7eda085c KZ |
276 | setlocale(LC_ALL, ""); |
277 | bindtextdomain(PACKAGE, LOCALEDIR); | |
278 | textdomain(PACKAGE); | |
c05a80ca | 279 | atexit(close_stdout); |
e8f26419 | 280 | |
310170b8 | 281 | #if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP) |
d162fcb5 KZ |
282 | if ((term = getenv("TERM"))) { |
283 | int ret; | |
5f845cb7 | 284 | my_setupterm(term, STDOUT_FILENO, &ret); |
d162fcb5 KZ |
285 | if (ret > 0) { |
286 | Senter = my_tgetstr("so","smso"); | |
287 | Sexit = my_tgetstr("se","rmso"); | |
94b26919 | 288 | Slen = strlen(Senter) + strlen(Sexit); |
d162fcb5 KZ |
289 | } |
290 | } | |
291 | #endif | |
292 | ||
612721db | 293 | /* |
0a9bead0 PB |
294 | * The traditional Unix cal utility starts the week at Sunday, |
295 | * while ISO 8601 starts at Monday. We read the start day from | |
296 | * the locale database, which can be overridden with the | |
297 | * -s (Sunday) or -m (Monday) options. | |
612721db | 298 | */ |
69cabd72 | 299 | #if HAVE_DECL__NL_TIME_WEEK_1STDAY |
0a9bead0 PB |
300 | /* |
301 | * You need to use 2 locale variables to get the first day of the week. | |
302 | * This is needed to support first_weekday=2 and first_workday=1 for | |
303 | * the rare case where working days span across 2 weeks. | |
304 | * This shell script shows the combinations and calculations involved: | |
33c17354 SK |
305 | * |
306 | * for LANG in en_US ru_RU fr_FR csb_PL POSIX; do | |
307 | * printf "%s:\t%s + %s -1 = " $LANG $(locale week-1stday first_weekday) | |
308 | * date -d"$(locale week-1stday) +$(($(locale first_weekday)-1))day" +%w | |
309 | * done | |
310 | * | |
311 | * en_US: 19971130 + 1 -1 = 0 #0 = sunday | |
312 | * ru_RU: 19971130 + 2 -1 = 1 | |
313 | * fr_FR: 19971201 + 1 -1 = 1 | |
314 | * csb_PL: 19971201 + 2 -1 = 2 | |
315 | * POSIX: 19971201 + 7 -1 = 0 | |
0a9bead0 PB |
316 | */ |
317 | { | |
aebb9522 KZ |
318 | int wfd; |
319 | union { unsigned int word; char *string; } val; | |
320 | val.string = nl_langinfo(_NL_TIME_WEEK_1STDAY); | |
321 | ||
322 | wfd = val.word; | |
0a9bead0 | 323 | wfd = day_in_week(wfd % 100, (wfd / 100) % 100, wfd / (100 * 100)); |
5f845cb7 | 324 | weekstart = (wfd + *nl_langinfo(_NL_TIME_FIRST_WEEKDAY) - 1) % DAYS_IN_WEEK; |
0a9bead0 | 325 | } |
e8f26419 | 326 | #endif |
d162fcb5 | 327 | |
022df321 | 328 | while ((ch = getopt_long(argc, argv, "13mjsyVh", longopts, NULL)) != -1) |
6dbe3af9 | 329 | switch(ch) { |
d162fcb5 KZ |
330 | case '1': |
331 | num_months = 1; /* default */ | |
332 | break; | |
333 | case '3': | |
334 | num_months = 3; | |
335 | break; | |
ffc43748 | 336 | case 's': |
5f845cb7 | 337 | weekstart = SUNDAY; /* default */ |
ffc43748 | 338 | break; |
5c36a0eb | 339 | case 'm': |
5f845cb7 | 340 | weekstart = MONDAY; |
5c36a0eb | 341 | break; |
6dbe3af9 KZ |
342 | case 'j': |
343 | julian = 1; | |
344 | break; | |
345 | case 'y': | |
346 | yflag = 1; | |
347 | break; | |
7b353df2 | 348 | case OPT_COLOR: |
201b39f0 KZ |
349 | if (optarg) |
350 | colormode = colormode_or_err(optarg, | |
351 | _("unsupported color mode")); | |
7b353df2 | 352 | break; |
eb63b9b8 | 353 | case 'V': |
e421313d | 354 | printf(UTIL_LINUX_VERSION); |
37d6897f | 355 | return EXIT_SUCCESS; |
022df321 SK |
356 | case 'h': |
357 | usage(stdout); | |
6dbe3af9 KZ |
358 | case '?': |
359 | default: | |
022df321 | 360 | usage(stderr); |
6dbe3af9 KZ |
361 | } |
362 | argc -= optind; | |
363 | argv += optind; | |
364 | ||
a43145e1 RP |
365 | time(&now); |
366 | local_time = localtime(&now); | |
367 | ||
6dbe3af9 | 368 | switch(argc) { |
d7a92b89 | 369 | case 3: |
db41a429 | 370 | day = strtos32_or_err(*argv++, _("illegal day value")); |
5f845cb7 SK |
371 | if (day < 1 || DAYS_IN_MONTH < day) |
372 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), DAYS_IN_MONTH); | |
d7a92b89 | 373 | /* FALLTHROUGH */ |
6dbe3af9 | 374 | case 2: |
db41a429 | 375 | month = strtos32_or_err(*argv++, _("illegal month value: use 1-12")); |
5f845cb7 | 376 | if (month < 1 || MONTHS_IN_YEAR < month) |
022df321 | 377 | errx(EXIT_FAILURE, _("illegal month value: use 1-12")); |
6dbe3af9 KZ |
378 | /* FALLTHROUGH */ |
379 | case 1: | |
e44fe471 SK |
380 | year = strtol_or_err(*argv++, _("illegal year value")); |
381 | if (year < SMALLEST_YEAR) | |
382 | errx(EXIT_FAILURE, _("illegal year value: use positive integer")); | |
d7a92b89 PB |
383 | if (day) { |
384 | int dm = days_in_month[leap_year(year)][month]; | |
385 | if (day > dm) | |
022df321 | 386 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), dm); |
d7a92b89 | 387 | day = day_in_year(day, month, year); |
e44fe471 | 388 | } else if ((long) (local_time->tm_year + 1900) == year) { |
a43145e1 | 389 | day = local_time->tm_yday + 1; |
d7a92b89 PB |
390 | } |
391 | if (!month) | |
392 | yflag=1; | |
6dbe3af9 KZ |
393 | break; |
394 | case 0: | |
d7a92b89 | 395 | day = local_time->tm_yday + 1; |
6dbe3af9 | 396 | year = local_time->tm_year + 1900; |
d7a92b89 | 397 | month = local_time->tm_mon + 1; |
6dbe3af9 KZ |
398 | break; |
399 | default: | |
022df321 | 400 | usage(stderr); |
6dbe3af9 | 401 | } |
b283141c | 402 | headers_init(julian); |
6dbe3af9 | 403 | |
7b353df2 SK |
404 | if (!colors_init(colormode)) |
405 | day = 0; | |
d7a92b89 | 406 | |
b283141c SK |
407 | if (yflag) |
408 | yearly(day, year, julian); | |
d7a92b89 PB |
409 | else if (num_months == 1) |
410 | monthly(day, month, year); | |
411 | else if (num_months == 3) | |
412 | monthly3(day, month, year); | |
37d6897f KZ |
413 | |
414 | return EXIT_SUCCESS; | |
6dbe3af9 KZ |
415 | } |
416 | ||
3b66dfd6 | 417 | /* leap year -- account for gregorian reformation in 1752 */ |
e44fe471 | 418 | static int leap_year(long year) |
3b66dfd6 | 419 | { |
5f845cb7 | 420 | if (year <= REFORMATION_YEAR) |
3b66dfd6 SK |
421 | return !(year % 4); |
422 | else | |
423 | return ( !(year % 4) && (year % 100) ) || !(year % 400); | |
424 | } | |
425 | ||
8ea0caa2 | 426 | static void headers_init(int julian) |
6dbe3af9 | 427 | { |
b283141c SK |
428 | int i, wd, spaces = julian ? J_DAY_LEN - 1 : DAY_LEN - 1; |
429 | char *cur_dh = day_headings; | |
33c17354 | 430 | |
5f845cb7 | 431 | for (i = 0; i < DAYS_IN_WEEK; i++) { |
33c17354 | 432 | ssize_t space_left; |
5f845cb7 | 433 | wd = (i + weekstart) % DAYS_IN_WEEK; |
33c17354 SK |
434 | |
435 | if (i) | |
436 | strcat(cur_dh++, " "); | |
437 | space_left = | |
438 | sizeof(day_headings) - (cur_dh - day_headings); | |
b283141c | 439 | if (space_left <= spaces) |
33c17354 SK |
440 | break; |
441 | cur_dh += | |
442 | center_str(nl_langinfo(ABDAY_1 + wd), cur_dh, | |
b283141c | 443 | space_left, spaces); |
33c17354 SK |
444 | } |
445 | ||
5f845cb7 | 446 | for (i = 0; i < MONTHS_IN_YEAR; i++) |
33c17354 | 447 | full_month[i] = nl_langinfo(MON_1 + i); |
6dbe3af9 KZ |
448 | } |
449 | ||
e44fe471 SK |
450 | static int |
451 | do_monthly(int day, int month, long year, struct fmt_st *out, int header_hint) { | |
ff87defc | 452 | int col, row, days[MAXDAYS]; |
d162fcb5 | 453 | char *p, lineout[FMT_ST_CHARS]; |
e44fe471 SK |
454 | size_t width = (julian ? J_WEEK_LEN : WEEK_LEN) - 1; |
455 | int pos = 0; | |
d162fcb5 KZ |
456 | |
457 | day_array(day, month, year, days); | |
458 | ||
459 | /* | |
460 | * %s is the month name, %d the year number. | |
0e6f4a20 | 461 | * you can change the order and/or add something here; eg for |
e8f26419 KZ |
462 | * Basque the translation should be: "%2$dko %1$s", and |
463 | * the Vietnamese should be "%s na(m %d", etc. | |
464 | */ | |
e44fe471 SK |
465 | if (header_hint < 0) |
466 | header_hint = two_header_lines(month, year); | |
467 | if (header_hint) { | |
468 | snprintf(lineout, sizeof(lineout), _("%s"), full_month[month - 1]); | |
469 | center_str(lineout, out->s[pos], ARRAY_SIZE(out->s[pos]), width); | |
470 | pos++; | |
471 | snprintf(lineout, sizeof(lineout), _("%lu"), year); | |
472 | center_str(lineout, out->s[pos], ARRAY_SIZE(out->s[pos]), width); | |
473 | pos++; | |
474 | } else { | |
475 | snprintf(lineout, sizeof(lineout), _("%s %lu"), | |
ff87defc | 476 | full_month[month - 1], year); |
e44fe471 SK |
477 | center_str(lineout, out->s[pos], ARRAY_SIZE(out->s[pos]), width); |
478 | pos++; | |
479 | } | |
d162fcb5 | 480 | |
e44fe471 | 481 | snprintf(out->s[pos++], FMT_ST_CHARS, "%s", day_headings); |
5f845cb7 | 482 | for (row = 0; row < DAYS_IN_WEEK - 1; row++) { |
94b26919 | 483 | int has_hl = 0; |
5f845cb7 SK |
484 | for (col = 0, p = lineout; col < DAYS_IN_WEEK; col++) { |
485 | int xd = days[row * DAYS_IN_WEEK + col]; | |
94b26919 KZ |
486 | if (xd != SPACE && (xd & TODAY_FLAG)) |
487 | has_hl = 1; | |
488 | p = ascii_day(p, xd); | |
489 | } | |
6dbe3af9 | 490 | *p = '\0'; |
e44fe471 | 491 | snprintf(out->s[row+pos], FMT_ST_CHARS, "%s", lineout); |
94b26919 | 492 | if (has_hl) |
e44fe471 | 493 | Hrow = out->s[row+pos]; |
66ee8158 | 494 | } |
e44fe471 SK |
495 | pos += row; |
496 | return pos; | |
66ee8158 KZ |
497 | } |
498 | ||
8ea0caa2 | 499 | static void |
e44fe471 SK |
500 | monthly(int day, int month, long year) { |
501 | int i, rows; | |
66ee8158 KZ |
502 | struct fmt_st out; |
503 | ||
e44fe471 SK |
504 | rows = do_monthly(day, month, year, &out, -1); |
505 | for (i = 0; i < rows; i++) { | |
f4061938 | 506 | my_putstring(out.s[i]); |
e66ba1bf | 507 | my_putstring("\n"); |
66ee8158 KZ |
508 | } |
509 | } | |
510 | ||
e44fe471 SK |
511 | static int |
512 | two_header_lines(int month, long year) | |
513 | { | |
514 | char lineout[FMT_ST_CHARS]; | |
515 | size_t width = (julian ? J_WEEK_LEN : WEEK_LEN) - 1; | |
516 | size_t len; | |
517 | snprintf(lineout, sizeof(lineout), "%lu", year); | |
518 | len = strlen(lineout); | |
519 | len += strlen(full_month[month - 1]) + 1; | |
520 | if (width < len) | |
521 | return 1; | |
522 | return 0; | |
523 | } | |
524 | ||
8ea0caa2 | 525 | static void |
e44fe471 | 526 | monthly3(int day, int month, long year) { |
d162fcb5 | 527 | char lineout[FMT_ST_CHARS]; |
66ee8158 | 528 | int i; |
e44fe471 | 529 | int width, rows, two_lines; |
66ee8158 KZ |
530 | struct fmt_st out_prev; |
531 | struct fmt_st out_curm; | |
532 | struct fmt_st out_next; | |
e44fe471 SK |
533 | int prev_month, next_month; |
534 | long prev_year, next_year; | |
66ee8158 | 535 | |
e44fe471 SK |
536 | memset(&out_prev, 0, sizeof(struct fmt_st)); |
537 | memset(&out_curm, 0, sizeof(struct fmt_st)); | |
538 | memset(&out_next, 0, sizeof(struct fmt_st)); | |
d162fcb5 | 539 | if (month == 1) { |
5f845cb7 | 540 | prev_month = MONTHS_IN_YEAR; |
d162fcb5 KZ |
541 | prev_year = year - 1; |
542 | } else { | |
543 | prev_month = month - 1; | |
544 | prev_year = year; | |
66ee8158 | 545 | } |
5f845cb7 | 546 | if (month == MONTHS_IN_YEAR) { |
d162fcb5 KZ |
547 | next_month = 1; |
548 | next_year = year + 1; | |
549 | } else { | |
550 | next_month = month + 1; | |
551 | next_year = year; | |
66ee8158 | 552 | } |
e44fe471 SK |
553 | two_lines = two_header_lines(prev_month, prev_year); |
554 | two_lines += two_header_lines(month, year); | |
555 | two_lines += two_header_lines(next_month, next_year); | |
556 | if (0 < two_lines) | |
557 | rows = FMT_ST_LINES; | |
558 | else | |
559 | rows = FMT_ST_LINES - 1; | |
560 | do_monthly(day, prev_month, prev_year, &out_prev, two_lines); | |
561 | do_monthly(day, month, year, &out_curm, two_lines); | |
562 | do_monthly(day, next_month, next_year, &out_next, two_lines); | |
94b26919 | 563 | |
33c17354 | 564 | width = (julian ? J_WEEK_LEN : WEEK_LEN) -1; |
e44fe471 | 565 | for (i = 0; i < (two_lines ? 3 : 2); i++) { |
e66ba1bf KZ |
566 | snprintf(lineout, sizeof(lineout), |
567 | "%s %s %s\n", out_prev.s[i], out_curm.s[i], out_next.s[i]); | |
568 | my_putstring(lineout); | |
569 | } | |
e44fe471 | 570 | for (i = two_lines ? 3 : 2; i < rows; i++) { |
94b26919 KZ |
571 | int w1, w2, w3; |
572 | w1 = w2 = w3 = width; | |
573 | ||
310170b8 | 574 | #if defined(HAVE_LIBNCURSES) || defined(HAVE_LIBNCURSESW) || defined(HAVE_LIBTERMCAP) |
33c17354 SK |
575 | /* adjust width to allow for non printable characters */ |
576 | w1 += (out_prev.s[i] == Hrow ? Slen : 0); | |
577 | w2 += (out_curm.s[i] == Hrow ? Slen : 0); | |
578 | w3 += (out_next.s[i] == Hrow ? Slen : 0); | |
94b26919 | 579 | #endif |
22468708 | 580 | snprintf(lineout, sizeof(lineout), "%-*s %-*s %-*s\n", |
94b26919 KZ |
581 | w1, out_prev.s[i], |
582 | w2, out_curm.s[i], | |
583 | w3, out_next.s[i]); | |
584 | ||
d162fcb5 | 585 | my_putstring(lineout); |
6dbe3af9 KZ |
586 | } |
587 | } | |
588 | ||
8ea0caa2 | 589 | static void |
e44fe471 | 590 | yearly(int day, long year, int julian) { |
6dbe3af9 | 591 | int col, *dp, i, month, row, which_cal; |
b283141c | 592 | int maxrow, sep_len, week_len; |
5f845cb7 | 593 | int days[MONTHS_IN_YEAR][MAXDAYS]; |
d162fcb5 | 594 | char *p, lineout[100]; |
6dbe3af9 | 595 | |
b283141c SK |
596 | if (julian) { |
597 | maxrow = J_MONTH_COLS; | |
598 | sep_len = J_HEAD_SEP; | |
599 | week_len = J_WEEK_LEN; | |
600 | } else { | |
601 | maxrow = MONTH_COLS; | |
602 | sep_len = HEAD_SEP; | |
603 | week_len = WEEK_LEN; | |
604 | } | |
e44fe471 | 605 | snprintf(lineout, sizeof(lineout), "%lu", year); |
b283141c SK |
606 | /* 2013-04-28: The -1 near sep_len makes year header to be |
607 | * aligned exactly how it has been aligned for long time, but it | |
608 | * is unexplainable. */ | |
609 | center(lineout, (week_len + sep_len) * maxrow - sep_len - 1, 0); | |
e66ba1bf | 610 | my_putstring("\n\n"); |
d162fcb5 | 611 | |
5f845cb7 | 612 | for (i = 0; i < MONTHS_IN_YEAR; i++) |
d162fcb5 | 613 | day_array(day, i + 1, year, days[i]); |
b283141c SK |
614 | for (month = 0; month < MONTHS_IN_YEAR; month += maxrow) { |
615 | center(full_month[month], week_len - 1, sep_len + 1); | |
616 | if (julian) { | |
617 | center(full_month[month + 1], week_len - 1, 0); | |
618 | } else { | |
619 | center(full_month[month + 1], week_len - 1, sep_len + 1); | |
620 | center(full_month[month + 2], week_len - 1, 0); | |
621 | } | |
622 | if (julian) | |
623 | snprintf(lineout, sizeof(lineout), | |
624 | "\n%s%*s %s\n", day_headings, sep_len, "", day_headings); | |
625 | else | |
626 | snprintf(lineout, sizeof(lineout), | |
627 | "\n%s%*s %s%*s %s\n", day_headings, sep_len, | |
628 | "", day_headings, sep_len, "", day_headings); | |
e66ba1bf | 629 | my_putstring(lineout); |
5f845cb7 | 630 | for (row = 0; row < DAYS_IN_WEEK - 1; row++) { |
d162fcb5 | 631 | p = lineout; |
b283141c | 632 | for (which_cal = 0; which_cal < maxrow; which_cal++) { |
5f845cb7 SK |
633 | dp = &days[month + which_cal][row * DAYS_IN_WEEK]; |
634 | for (col = 0; col < DAYS_IN_WEEK; col++) | |
d162fcb5 KZ |
635 | p = ascii_day(p, *dp++); |
636 | p += sprintf(p, " "); | |
6dbe3af9 KZ |
637 | } |
638 | *p = '\0'; | |
f4061938 | 639 | my_putstring(lineout); |
e66ba1bf | 640 | my_putstring("\n"); |
6dbe3af9 KZ |
641 | } |
642 | } | |
e66ba1bf | 643 | my_putstring("\n"); |
6dbe3af9 KZ |
644 | } |
645 | ||
646 | /* | |
647 | * day_array -- | |
648 | * Fill in an array of 42 integers with a calendar. Assume for a moment | |
649 | * that you took the (maximum) 6 rows in a calendar and stretched them | |
650 | * out end to end. You would have 42 numbers or spaces. This routine | |
651 | * builds that array for any month from Jan. 1 through Dec. 9999. | |
652 | */ | |
8ea0caa2 | 653 | static void |
e44fe471 | 654 | day_array(int day, int month, long year, int *days) { |
d162fcb5 | 655 | int julday, daynum, dw, dm; |
e8c58289 SK |
656 | int *sep1752; |
657 | ||
658 | memcpy(days, empty, MAXDAYS * sizeof(int)); | |
659 | if (year == REFORMATION_YEAR && month == REFORMATION_MONTH) { | |
660 | sep1752 = julian ? j_sep1752 : d_sep1752; | |
661 | memcpy(days, sep1752 + weekstart, | |
662 | ((MAXDAYS / 2) - weekstart) * sizeof(int)); | |
663 | for (dm = 0; dm < MAXDAYS / 2; dm++) | |
664 | if (j_sep1752[dm] == day) | |
d7a92b89 | 665 | days[dm] |= TODAY_FLAG; |
6dbe3af9 KZ |
666 | return; |
667 | } | |
6dbe3af9 | 668 | dm = days_in_month[leap_year(year)][month]; |
5f845cb7 | 669 | dw = (day_in_week(1, month, year) - weekstart + DAYS_IN_WEEK) % DAYS_IN_WEEK; |
d162fcb5 KZ |
670 | julday = day_in_year(1, month, year); |
671 | daynum = julian ? julday : 1; | |
672 | while (dm--) { | |
673 | days[dw] = daynum++; | |
674 | if (julday++ == day) | |
675 | days[dw] |= TODAY_FLAG; | |
676 | dw++; | |
677 | } | |
6dbe3af9 KZ |
678 | } |
679 | ||
680 | /* | |
681 | * day_in_year -- | |
682 | * return the 1 based day number within the year | |
683 | */ | |
8ea0caa2 | 684 | static int |
e44fe471 | 685 | day_in_year(int day, int month, long year) { |
6dbe3af9 KZ |
686 | int i, leap; |
687 | ||
688 | leap = leap_year(year); | |
689 | for (i = 1; i < month; i++) | |
690 | day += days_in_month[leap][i]; | |
d162fcb5 | 691 | return day; |
6dbe3af9 KZ |
692 | } |
693 | ||
694 | /* | |
695 | * day_in_week | |
696 | * return the 0 based day number for any date from 1 Jan. 1 to | |
697 | * 31 Dec. 9999. Assumes the Gregorian reformation eliminates | |
d68f076f SK |
698 | * 3 Sep. 1752 through 13 Sep. 1752, and returns invalid weekday |
699 | * during the period of 11 days. | |
6dbe3af9 | 700 | */ |
8ea0caa2 | 701 | static int |
91ac9ef5 SK |
702 | day_in_week(int d, int m, int y) |
703 | { | |
704 | static const int reform[] = { | |
705 | SUNDAY, WEDNESDAY, TUESDAY, FRIDAY, SUNDAY, WEDNESDAY, | |
706 | FRIDAY, MONDAY, THURSDAY, SATURDAY, TUESDAY, THURSDAY | |
707 | }; | |
708 | static const int old[] = { | |
709 | FRIDAY, MONDAY, SUNDAY, WEDNESDAY, FRIDAY, MONDAY, | |
710 | WEDNESDAY, SATURDAY, TUESDAY, THURSDAY, SUNDAY, TUESDAY | |
711 | }; | |
712 | if (y != 1753) | |
713 | y -= m < 3; | |
714 | else | |
715 | y -= (m < 3) + 14; | |
716 | if (1752 < y || (y == 1752 && 9 < m) || (y == 1752 && m == 9 && 13 < d)) | |
717 | return (y + (y / 4) - (y / 100) + (y / 400) + reform[m - 1] + | |
718 | d) % 7; | |
719 | if (y < 1752 || (y == 1752 && m < 9) || (y == 1752 && m == 9 && d < 3)) | |
720 | return (y + y / 4 + old[m - 1] + d) % 7; | |
721 | return NONEDAY; | |
6dbe3af9 KZ |
722 | } |
723 | ||
8ea0caa2 | 724 | static char * |
d162fcb5 | 725 | ascii_day(char *p, int day) { |
6dbe3af9 | 726 | int display, val; |
d162fcb5 | 727 | int highlight = 0; |
6dbe3af9 KZ |
728 | static char *aday[] = { |
729 | "", | |
730 | " 1", " 2", " 3", " 4", " 5", " 6", " 7", | |
731 | " 8", " 9", "10", "11", "12", "13", "14", | |
732 | "15", "16", "17", "18", "19", "20", "21", | |
733 | "22", "23", "24", "25", "26", "27", "28", | |
734 | "29", "30", "31", | |
735 | }; | |
736 | ||
737 | if (day == SPACE) { | |
d162fcb5 KZ |
738 | int len = julian ? J_DAY_LEN : DAY_LEN; |
739 | memset(p, ' ', len); | |
740 | return p+len; | |
741 | } | |
742 | if (day & TODAY_FLAG) { | |
743 | day &= ~TODAY_FLAG; | |
8c6c72bf | 744 | p += sprintf(p, "%s", Senter); |
d162fcb5 | 745 | highlight = 1; |
6dbe3af9 KZ |
746 | } |
747 | if (julian) { | |
726f69e2 | 748 | if ((val = day / 100)) { |
6dbe3af9 KZ |
749 | day %= 100; |
750 | *p++ = val + '0'; | |
751 | display = 1; | |
752 | } else { | |
753 | *p++ = ' '; | |
754 | display = 0; | |
755 | } | |
756 | val = day / 10; | |
757 | if (val || display) | |
758 | *p++ = val + '0'; | |
759 | else | |
760 | *p++ = ' '; | |
761 | *p++ = day % 10 + '0'; | |
762 | } else { | |
763 | *p++ = aday[day][0]; | |
764 | *p++ = aday[day][1]; | |
765 | } | |
d162fcb5 | 766 | if (highlight) |
8c6c72bf | 767 | p += sprintf(p, "%s", Sexit); |
d162fcb5 KZ |
768 | *p++ = ' '; |
769 | return p; | |
6dbe3af9 KZ |
770 | } |
771 | ||
d162fcb5 KZ |
772 | /* |
773 | * Center string, handling multibyte characters appropriately. | |
774 | * In addition if the string is too large for the width it's truncated. | |
ff87defc | 775 | * The number of trailing spaces may be 1 less than the number of leading spaces. |
d162fcb5 | 776 | */ |
8ea0caa2 | 777 | static int |
104b92f8 | 778 | center_str(const char* src, char* dest, size_t dest_size, size_t width) |
d162fcb5 | 779 | { |
104b92f8 PB |
780 | return mbsalign(src, dest, dest_size, &width, |
781 | MBS_ALIGN_CENTER, MBA_UNIBYTE_FALLBACK); | |
d162fcb5 KZ |
782 | } |
783 | ||
8ea0caa2 | 784 | static void |
2985e383 | 785 | center(const char *str, size_t len, int separate) |
6dbe3af9 | 786 | { |
d162fcb5 | 787 | char lineout[FMT_ST_CHARS]; |
e66ba1bf | 788 | |
17282538 | 789 | center_str(str, lineout, ARRAY_SIZE(lineout), len); |
e66ba1bf KZ |
790 | my_putstring(lineout); |
791 | ||
792 | if (separate) { | |
793 | snprintf(lineout, sizeof(lineout), "%*s", separate, ""); | |
794 | my_putstring(lineout); | |
795 | } | |
6dbe3af9 KZ |
796 | } |
797 | ||
022df321 | 798 | static void __attribute__ ((__noreturn__)) usage(FILE * out) |
6dbe3af9 | 799 | { |
201d43fd SK |
800 | fputs(USAGE_HEADER, out); |
801 | fprintf(out, _(" %s [options] [[[day] month] year]\n"), program_invocation_short_name); | |
802 | fputs(USAGE_OPTIONS, out); | |
803 | fputs(_(" -1, --one show only current month (default)\n"), out); | |
804 | fputs(_(" -3, --three show previous, current and next month\n"), out); | |
805 | fputs(_(" -s, --sunday Sunday as first day of week\n"), out); | |
806 | fputs(_(" -m, --monday Monday as first day of week\n"), out); | |
807 | fputs(_(" -j, --julian output Julian dates\n"), out); | |
808 | fputs(_(" -y, --year show whole current year\n"), out); | |
809 | fputs(_(" --color[=<when>] colorize messages (auto, always or never)\n"), out); | |
810 | fputs(USAGE_SEPARATOR, out); | |
811 | fputs(USAGE_HELP, out); | |
812 | fputs(USAGE_VERSION, out); | |
813 | fprintf(out, USAGE_MAN_TAIL("cal(1)")); | |
022df321 | 814 | exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS); |
6dbe3af9 | 815 | } |