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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 | 43 | * Added "-3" option to print prev/next month with current. |
9e930041 | 44 | * Added overridable default MONTHS_IN_ROW and "-1" option to |
66ee8158 KZ |
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> |
a79735f6 | 62 | #include <stdint.h> |
6dbe3af9 KZ |
63 | #include <stdio.h> |
64 | #include <stdlib.h> | |
65 | #include <string.h> | |
66 | #include <time.h> | |
67 | #include <unistd.h> | |
37d6897f | 68 | #include <errno.h> |
17282538 KZ |
69 | |
70 | #include "c.h" | |
c05a80ca | 71 | #include "closestream.h" |
7b353df2 | 72 | #include "colors.h" |
7eda085c | 73 | #include "nls.h" |
104b92f8 | 74 | #include "mbsalign.h" |
022df321 | 75 | #include "strutils.h" |
7800509b | 76 | #include "optutils.h" |
cd28d6a4 | 77 | #include "timeutils.h" |
8315a2ff | 78 | #include "ttyutils.h" |
6ed057ad | 79 | #include "xalloc.h" |
8315a2ff KZ |
80 | |
81 | #define DOY_MONTH_WIDTH 27 /* -j month width */ | |
82 | #define DOM_MONTH_WIDTH 20 /* month width */ | |
726f69e2 | 83 | |
6013e1eb TW |
84 | enum { |
85 | CAL_COLOR_TODAY, | |
86 | CAL_COLOR_HEADER, | |
87 | CAL_COLOR_WEEKNUMBER, | |
a6c81d61 KZ |
88 | CAL_COLOR_WORKDAY, |
89 | CAL_COLOR_WEEKEND | |
6013e1eb TW |
90 | }; |
91 | ||
92 | static const struct { const char * const scheme; const char * dflt; } colors[] = | |
93 | { | |
94 | [CAL_COLOR_TODAY] = { "today", UL_COLOR_REVERSE }, | |
95 | [CAL_COLOR_WEEKNUMBER] = { "weeknumber", UL_COLOR_REVERSE }, | |
96 | [CAL_COLOR_HEADER] = { "header", "" }, | |
a6c81d61 KZ |
97 | [CAL_COLOR_WORKDAY] = { "workday", "" }, |
98 | [CAL_COLOR_WEEKEND] = { "weekend", "" } | |
6013e1eb TW |
99 | }; |
100 | ||
101 | static inline void cal_enable_color(int id) | |
102 | { | |
103 | color_scheme_enable(colors[id].scheme, colors[id].dflt); | |
104 | } | |
105 | ||
106 | static inline const char *cal_get_color_sequence(int id) | |
107 | { | |
108 | return color_scheme_get_sequence(colors[id].scheme, colors[id].dflt); | |
109 | } | |
110 | ||
111 | static inline void cal_disable_color(int id) | |
112 | { | |
113 | const char *seq = cal_get_color_sequence(id); | |
114 | if (seq && seq[0]) | |
115 | color_disable(); | |
116 | } | |
117 | ||
118 | static inline const char *cal_get_color_disable_sequence(int id) | |
119 | { | |
120 | const char *seq = cal_get_color_sequence(id); | |
121 | if (seq && seq[0]) | |
122 | return UL_COLOR_RESET; | |
123 | else | |
124 | return ""; | |
125 | } | |
2a4b073e | 126 | |
e8f26419 | 127 | #include "widechar.h" |
95f1bdee | 128 | |
ae51e7b4 WP |
129 | enum { |
130 | GREGORIAN = INT32_MIN, | |
131 | ISO = INT32_MIN, | |
132 | GB1752 = 1752, | |
133 | DEFAULT_REFORM_YEAR = 1752, | |
134 | JULIAN = INT32_MAX | |
135 | }; | |
136 | ||
5f845cb7 SK |
137 | enum { |
138 | SUNDAY = 0, | |
139 | MONDAY, | |
140 | TUESDAY, | |
141 | WEDNESDAY, | |
142 | THURSDAY, | |
143 | FRIDAY, | |
144 | SATURDAY, | |
d68f076f SK |
145 | DAYS_IN_WEEK, |
146 | NONEDAY | |
5f845cb7 | 147 | }; |
6dbe3af9 | 148 | |
e1abe57e SK |
149 | enum { |
150 | JANUARY = 1, | |
151 | FEBRUARY, | |
152 | MARCH, | |
153 | APRIL, | |
154 | MAY, | |
155 | JUNE, | |
156 | JULY, | |
157 | AUGUST, | |
158 | SEPTEMBER, | |
159 | OCTOBER, | |
160 | NOVEMBER, | |
161 | DECEMBER | |
162 | }; | |
163 | ||
e1abe57e | 164 | #define REFORMATION_MONTH SEPTEMBER |
d162fcb5 | 165 | #define NUMBER_MISSING_DAYS 11 /* 11 day correction */ |
c36c4a4e | 166 | #define YDAY_AFTER_MISSING 258 /* 14th in Sep 1752 */ |
6dbe3af9 | 167 | |
e1abe57e | 168 | #define MONTHS_IN_YEAR DECEMBER |
5f845cb7 | 169 | #define DAYS_IN_MONTH 31 |
f06602a4 | 170 | #define MAXDAYS 42 /* slots in a month array */ |
6dbe3af9 KZ |
171 | #define SPACE -1 /* used in day array */ |
172 | ||
5f845cb7 | 173 | #define SMALLEST_YEAR 1 |
5f845cb7 SK |
174 | |
175 | #define DAY_LEN 3 /* 3 spaces per day */ | |
176 | #define WEEK_LEN (DAYS_IN_WEEK * DAY_LEN) | |
7800509b | 177 | #define MONTHS_IN_YEAR_ROW 3 /* month columns in year view */ |
aae4f87e | 178 | #define WNUM_LEN 3 |
5f845cb7 | 179 | |
5f845cb7 | 180 | #define FMT_ST_CHARS 300 /* 90 suffices in most locales */ |
5f845cb7 | 181 | |
1beb933e | 182 | static const int days_in_month[2][13] = { |
6dbe3af9 KZ |
183 | {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, |
184 | {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, | |
185 | }; | |
186 | ||
c36c4a4e TK |
187 | enum { |
188 | WEEK_NUM_DISABLED = 0, | |
aae4f87e TK |
189 | WEEK_NUM_MASK=0xff, |
190 | WEEK_NUM_ISO=0x100, | |
191 | WEEK_NUM_US=0x200, | |
c36c4a4e | 192 | }; |
e8f26419 | 193 | |
0e68b637 TW |
194 | enum { |
195 | COLUMNS_MAX_THREE = -1, | |
196 | COLUMNS_AUTO = -2, | |
197 | }; | |
198 | ||
e8f26419 | 199 | /* utf-8 can have up to 6 bytes per char; and an extra byte for ending \0 */ |
71ff238e | 200 | static char day_headings[(WEEK_LEN + 1) * 6 + 1]; |
6dbe3af9 | 201 | |
ffc56357 SK |
202 | struct cal_request { |
203 | int day; | |
204 | int month; | |
4a7424a5 | 205 | int32_t year; |
ffc56357 | 206 | int week; |
7800509b | 207 | int start_month; |
ffc56357 SK |
208 | }; |
209 | ||
b549058b SK |
210 | struct cal_control { |
211 | const char *full_month[MONTHS_IN_YEAR]; /* month names */ | |
c8805632 | 212 | const char *abbr_month[MONTHS_IN_YEAR]; /* abbreviated month names */ |
0c440bd7 | 213 | const char *weekdays[DAYS_IN_WEEK]; /* day names */ |
c8805632 | 214 | |
db9baa8a | 215 | int reform_year; /* Gregorian reform year */ |
b549058b | 216 | int colormode; /* day and week number highlight */ |
12f17a23 | 217 | int num_months; /* number of requested months */ |
d4cb626d | 218 | int span_months; /* span the date */ |
7800509b | 219 | int months_in_row; /* number of months horizontally in print out */ |
b549058b SK |
220 | int weekstart; /* day the week starts, often Sun or Mon */ |
221 | int weektype; /* WEEK_TYPE_{NONE,ISO,US} */ | |
71ff238e SK |
222 | size_t day_width; /* day width in characters in printout */ |
223 | size_t week_width; /* 7 * day_width + possible week num */ | |
27fafcf8 | 224 | size_t month_width; /* width of a month (vertical mode) */ |
95f4adde | 225 | int gutter_width; /* spaces in between horizontal month outputs */ |
ffc56357 | 226 | struct cal_request req; /* the times user is interested */ |
b549058b | 227 | unsigned int julian:1, /* julian output */ |
7800509b | 228 | header_year:1, /* print year number */ |
27fafcf8 AL |
229 | header_hint:1, /* does month name + year need two lines to fit */ |
230 | vertical:1; /* display the output in vertical */ | |
b549058b | 231 | }; |
6dbe3af9 | 232 | |
852c8d21 SK |
233 | struct cal_month { |
234 | int days[MAXDAYS]; /* the day numbers, or SPACE */ | |
235 | int weeks[MAXDAYS / DAYS_IN_WEEK]; | |
236 | int month; | |
4a7424a5 | 237 | int32_t year; |
852c8d21 SK |
238 | struct cal_month *next; |
239 | }; | |
5f845cb7 | 240 | /* function prototypes */ |
db9baa8a | 241 | static int leap_year(const struct cal_control *ctl, int32_t year); |
731441ac | 242 | static int monthname_to_number(struct cal_control *ctl, const char *name); |
0c440bd7 | 243 | static void weekdays_init(struct cal_control *ctl); |
b549058b | 244 | static void headers_init(struct cal_control *ctl); |
852c8d21 SK |
245 | static void cal_fill_month(struct cal_month *month, const struct cal_control *ctl); |
246 | static void cal_output_header(struct cal_month *month, const struct cal_control *ctl); | |
247 | static void cal_output_months(struct cal_month *month, const struct cal_control *ctl); | |
27fafcf8 | 248 | static void cal_vert_output_months(struct cal_month *month, const struct cal_control *ctl); |
ffc56357 | 249 | static void monthly(const struct cal_control *ctl); |
ffc56357 | 250 | static void yearly(const struct cal_control *ctl); |
db9baa8a WP |
251 | static int day_in_year(const struct cal_control *ctl, int day, |
252 | int month, int32_t year); | |
253 | static int day_in_week(const struct cal_control *ctl, int day, | |
254 | int month, int32_t year); | |
4a7424a5 | 255 | static int week_number(int day, int month, int32_t year, const struct cal_control *ctl); |
ffc56357 | 256 | static int week_to_day(const struct cal_control *ctl); |
0106c9e2 SK |
257 | static int center_str(const char *src, char *dest, size_t dest_size, size_t width); |
258 | static void center(const char *str, size_t len, int separate); | |
4de7efb5 | 259 | static int left_str(const char *src, char *dest, size_t dest_size, size_t width); |
27fafcf8 | 260 | static void left(const char *str, size_t len, int separate); |
ae51e7b4 | 261 | static int parse_reform_year(const char *reform_year); |
6e1eda6f | 262 | static void __attribute__((__noreturn__)) usage(void); |
6dbe3af9 | 263 | |
b9d9ab7d KZ |
264 | #ifdef TEST_CAL |
265 | static time_t cal_time(time_t *t) | |
266 | { | |
267 | char *str = getenv("CAL_TEST_TIME"); | |
268 | ||
269 | if (str) { | |
270 | uint64_t x = strtou64_or_err(str, "failed to parse CAL_TEST_TIME"); | |
271 | ||
272 | *t = x; | |
273 | return *t; | |
274 | } | |
275 | ||
276 | return time(t); | |
277 | } | |
278 | #else | |
279 | # define cal_time(t) time(t) | |
280 | #endif | |
281 | ||
d4be073d KZ |
282 | int main(int argc, char **argv) |
283 | { | |
3160589d | 284 | struct tm local_time; |
6dbe3af9 | 285 | time_t now; |
0e68b637 | 286 | int ch = 0, yflag = 0, Yflag = 0, cols = COLUMNS_MAX_THREE; |
db9baa8a | 287 | |
b549058b | 288 | static struct cal_control ctl = { |
ae51e7b4 | 289 | .reform_year = DEFAULT_REFORM_YEAR, |
b549058b | 290 | .weekstart = SUNDAY, |
d4cb626d | 291 | .span_months = 0, |
d0c9ddc3 | 292 | .colormode = UL_COLORMODE_UNDEF, |
71ff238e | 293 | .weektype = WEEK_NUM_DISABLED, |
ffc56357 | 294 | .day_width = DAY_LEN, |
95f4adde | 295 | .gutter_width = 2, |
ffc56357 SK |
296 | .req.day = 0, |
297 | .req.month = 0 | |
b549058b | 298 | }; |
7b353df2 SK |
299 | |
300 | enum { | |
ae51e7b4 WP |
301 | OPT_COLOR = CHAR_MAX + 1, |
302 | OPT_ISO, | |
303 | OPT_REFORM | |
7b353df2 | 304 | }; |
eb63b9b8 | 305 | |
022df321 SK |
306 | static const struct option longopts[] = { |
307 | {"one", no_argument, NULL, '1'}, | |
308 | {"three", no_argument, NULL, '3'}, | |
309 | {"sunday", no_argument, NULL, 's'}, | |
310 | {"monday", no_argument, NULL, 'm'}, | |
311 | {"julian", no_argument, NULL, 'j'}, | |
7800509b | 312 | {"months", required_argument, NULL, 'n'}, |
ccf3dd50 | 313 | {"span", no_argument, NULL, 'S'}, |
022df321 | 314 | {"year", no_argument, NULL, 'y'}, |
aae4f87e | 315 | {"week", optional_argument, NULL, 'w'}, |
7b353df2 | 316 | {"color", optional_argument, NULL, OPT_COLOR}, |
ae51e7b4 WP |
317 | {"reform", required_argument, NULL, OPT_REFORM}, |
318 | {"iso", no_argument, NULL, OPT_ISO}, | |
022df321 | 319 | {"version", no_argument, NULL, 'V'}, |
7800509b | 320 | {"twelve", no_argument, NULL, 'Y'}, |
022df321 | 321 | {"help", no_argument, NULL, 'h'}, |
27fafcf8 | 322 | {"vertical", no_argument, NULL,'v'}, |
618dd71b | 323 | {"columns", required_argument, NULL,'c'}, |
022df321 SK |
324 | {NULL, 0, NULL, 0} |
325 | }; | |
326 | ||
a7349ee3 | 327 | static const ul_excl_t excl[] = { /* rows and cols in ASCII order */ |
7800509b MK |
328 | { 'Y','n','y' }, |
329 | { 0 } | |
330 | }; | |
331 | int excl_st[ARRAY_SIZE(excl)] = UL_EXCL_STATUS_INIT; | |
332 | ||
7eda085c KZ |
333 | setlocale(LC_ALL, ""); |
334 | bindtextdomain(PACKAGE, LOCALEDIR); | |
335 | textdomain(PACKAGE); | |
2c308875 | 336 | close_stdout_atexit(); |
e8f26419 | 337 | |
612721db | 338 | /* |
0a9bead0 PB |
339 | * The traditional Unix cal utility starts the week at Sunday, |
340 | * while ISO 8601 starts at Monday. We read the start day from | |
341 | * the locale database, which can be overridden with the | |
342 | * -s (Sunday) or -m (Monday) options. | |
612721db | 343 | */ |
69cabd72 | 344 | #if HAVE_DECL__NL_TIME_WEEK_1STDAY |
0a9bead0 PB |
345 | /* |
346 | * You need to use 2 locale variables to get the first day of the week. | |
347 | * This is needed to support first_weekday=2 and first_workday=1 for | |
348 | * the rare case where working days span across 2 weeks. | |
349 | * This shell script shows the combinations and calculations involved: | |
33c17354 SK |
350 | * |
351 | * for LANG in en_US ru_RU fr_FR csb_PL POSIX; do | |
352 | * printf "%s:\t%s + %s -1 = " $LANG $(locale week-1stday first_weekday) | |
353 | * date -d"$(locale week-1stday) +$(($(locale first_weekday)-1))day" +%w | |
354 | * done | |
355 | * | |
356 | * en_US: 19971130 + 1 -1 = 0 #0 = sunday | |
357 | * ru_RU: 19971130 + 2 -1 = 1 | |
358 | * fr_FR: 19971201 + 1 -1 = 1 | |
359 | * csb_PL: 19971201 + 2 -1 = 2 | |
360 | * POSIX: 19971201 + 7 -1 = 0 | |
0a9bead0 PB |
361 | */ |
362 | { | |
aebb9522 KZ |
363 | int wfd; |
364 | union { unsigned int word; char *string; } val; | |
365 | val.string = nl_langinfo(_NL_TIME_WEEK_1STDAY); | |
366 | ||
367 | wfd = val.word; | |
db9baa8a WP |
368 | wfd = day_in_week(&ctl, wfd % 100, (wfd / 100) % 100, |
369 | wfd / (100 * 100)); | |
b549058b | 370 | ctl.weekstart = (wfd + *nl_langinfo(_NL_TIME_FIRST_WEEKDAY) - 1) % DAYS_IN_WEEK; |
0a9bead0 | 371 | } |
e8f26419 | 372 | #endif |
0e68b637 | 373 | while ((ch = getopt_long(argc, argv, "13mjn:sSywYvc:Vh", longopts, NULL)) != -1) { |
7800509b MK |
374 | |
375 | err_exclusive_options(ch, longopts, excl, excl_st); | |
d162fcb5 | 376 | |
6dbe3af9 | 377 | switch(ch) { |
d162fcb5 | 378 | case '1': |
2bcf8f79 | 379 | ctl.num_months = 1; |
d162fcb5 KZ |
380 | break; |
381 | case '3': | |
b549058b | 382 | ctl.num_months = 3; |
d4cb626d | 383 | ctl.span_months = 1; |
d162fcb5 | 384 | break; |
ffc43748 | 385 | case 's': |
b549058b | 386 | ctl.weekstart = SUNDAY; /* default */ |
ffc43748 | 387 | break; |
5c36a0eb | 388 | case 'm': |
b549058b | 389 | ctl.weekstart = MONDAY; |
5c36a0eb | 390 | break; |
6dbe3af9 | 391 | case 'j': |
b549058b | 392 | ctl.julian = 1; |
71ff238e | 393 | ctl.day_width = DAY_LEN + 1; |
6dbe3af9 KZ |
394 | break; |
395 | case 'y': | |
7800509b MK |
396 | yflag = 1; |
397 | break; | |
398 | case 'Y': | |
399 | Yflag = 1; | |
400 | break; | |
401 | case 'n': | |
402 | ctl.num_months = strtou32_or_err(optarg, | |
403 | _("invalid month argument")); | |
6dbe3af9 | 404 | break; |
ccf3dd50 D |
405 | case 'S': |
406 | ctl.span_months = 1; | |
407 | break; | |
c36c4a4e | 408 | case 'w': |
aae4f87e | 409 | if (optarg) { |
ffc56357 | 410 | ctl.req.week = strtos32_or_err(optarg, |
aae4f87e | 411 | _("invalid week argument")); |
efafeaf6 SK |
412 | if (ctl.req.week < 1 || 54 < ctl.req.week) |
413 | errx(EXIT_FAILURE,_("illegal week value: use 1-54")); | |
aae4f87e | 414 | } |
b549058b | 415 | ctl.weektype = WEEK_NUM_US; /* default per weekstart */ |
c36c4a4e | 416 | break; |
7b353df2 | 417 | case OPT_COLOR: |
5d51dc2a | 418 | ctl.colormode = UL_COLORMODE_AUTO; |
201b39f0 | 419 | if (optarg) |
b549058b | 420 | ctl.colormode = colormode_or_err(optarg, |
201b39f0 | 421 | _("unsupported color mode")); |
7b353df2 | 422 | break; |
ae51e7b4 WP |
423 | case OPT_REFORM: |
424 | ctl.reform_year = parse_reform_year(optarg); | |
425 | break; | |
426 | case OPT_ISO: | |
427 | ctl.reform_year = ISO; | |
428 | break; | |
27fafcf8 AL |
429 | case 'v': |
430 | ctl.vertical = 1; | |
431 | break; | |
0e68b637 TW |
432 | case 'c': |
433 | if (strcmp(optarg, "auto") == 0) | |
434 | cols = COLUMNS_AUTO; | |
435 | else | |
0fb52dab JW |
436 | cols = strtosize_or_err(optarg, |
437 | _("failed to parse columns")); | |
0e68b637 | 438 | break; |
eb63b9b8 | 439 | case 'V': |
2c308875 | 440 | print_version(EXIT_SUCCESS); |
022df321 | 441 | case 'h': |
6e1eda6f | 442 | usage(); |
6dbe3af9 | 443 | default: |
677ec86c | 444 | errtryhelp(EXIT_FAILURE); |
6dbe3af9 | 445 | } |
7800509b MK |
446 | } |
447 | ||
6dbe3af9 KZ |
448 | argc -= optind; |
449 | argv += optind; | |
450 | ||
b549058b | 451 | if (ctl.weektype) { |
ffc56357 | 452 | ctl.weektype = ctl.req.week & WEEK_NUM_MASK; |
b549058b | 453 | ctl.weektype |= (ctl.weekstart == MONDAY ? WEEK_NUM_ISO : WEEK_NUM_US); |
71ff238e SK |
454 | ctl.week_width = (ctl.day_width * DAYS_IN_WEEK) + WNUM_LEN; |
455 | } else | |
456 | ctl.week_width = ctl.day_width * DAYS_IN_WEEK; | |
a5e322f4 AL |
457 | /* |
458 | * The day_width includes the space between days, | |
459 | * as there is no leading space, remove 1 | |
460 | * */ | |
461 | ctl.week_width -= 1; | |
c36c4a4e | 462 | |
cd28d6a4 KZ |
463 | if (argc == 1 && !isdigit_string(*argv)) { |
464 | usec_t x; | |
535fd6d2 | 465 | /* cal <timestamp> */ |
cd28d6a4 KZ |
466 | if (parse_timestamp(*argv, &x) == 0) |
467 | now = (time_t) (x / 1000000); | |
535fd6d2 KZ |
468 | /* cal <monthname> */ |
469 | else if ((ctl.req.month = monthname_to_number(&ctl, *argv)) > 0) | |
b9d9ab7d | 470 | cal_time(&now); /* this year */ |
cd28d6a4 | 471 | else |
535fd6d2 | 472 | errx(EXIT_FAILURE, _("failed to parse timestamp or unknown month name: %s"), *argv); |
cd28d6a4 KZ |
473 | argc = 0; |
474 | } else | |
b9d9ab7d | 475 | cal_time(&now); |
cd28d6a4 | 476 | |
3160589d | 477 | localtime_r(&now, &local_time); |
a43145e1 | 478 | |
6dbe3af9 | 479 | switch(argc) { |
d7a92b89 | 480 | case 3: |
ffc56357 SK |
481 | ctl.req.day = strtos32_or_err(*argv++, _("illegal day value")); |
482 | if (ctl.req.day < 1 || DAYS_IN_MONTH < ctl.req.day) | |
5f845cb7 | 483 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), DAYS_IN_MONTH); |
b1557fe9 | 484 | /* fallthrough */ |
6dbe3af9 | 485 | case 2: |
731441ac KZ |
486 | if (isdigit(**argv)) |
487 | ctl.req.month = strtos32_or_err(*argv++, _("illegal month value: use 1-12")); | |
c49fb9ca KZ |
488 | else { |
489 | ctl.req.month = monthname_to_number(&ctl, *argv); | |
490 | if (ctl.req.month < 0) | |
491 | errx(EXIT_FAILURE, _("unknown month name: %s"), *argv); | |
492 | argv++; | |
493 | } | |
ffc56357 | 494 | if (ctl.req.month < 1 || MONTHS_IN_YEAR < ctl.req.month) |
022df321 | 495 | errx(EXIT_FAILURE, _("illegal month value: use 1-12")); |
b1557fe9 | 496 | /* fallthrough */ |
6dbe3af9 | 497 | case 1: |
4a7424a5 | 498 | ctl.req.year = strtos32_or_err(*argv++, _("illegal year value")); |
ffc56357 | 499 | if (ctl.req.year < SMALLEST_YEAR) |
e44fe471 | 500 | errx(EXIT_FAILURE, _("illegal year value: use positive integer")); |
ae51e7b4 | 501 | if (ctl.req.year == JULIAN) |
4a7424a5 | 502 | errx(EXIT_FAILURE, _("illegal year value")); |
ffc56357 | 503 | if (ctl.req.day) { |
db9baa8a WP |
504 | int dm = days_in_month[leap_year(&ctl, ctl.req.year)] |
505 | [ctl.req.month]; | |
ffc56357 | 506 | if (ctl.req.day > dm) |
022df321 | 507 | errx(EXIT_FAILURE, _("illegal day value: use 1-%d"), dm); |
db9baa8a WP |
508 | ctl.req.day = day_in_year(&ctl, ctl.req.day, |
509 | ctl.req.month, ctl.req.year); | |
3160589d SK |
510 | } else if ((int32_t) (local_time.tm_year + 1900) == ctl.req.year) { |
511 | ctl.req.day = local_time.tm_yday + 1; | |
d7a92b89 | 512 | } |
95f4adde | 513 | if (!ctl.req.month && !ctl.req.week) { |
3160589d | 514 | ctl.req.month = local_time.tm_mon + 1; |
37bd991f KZ |
515 | if (!ctl.num_months) |
516 | yflag = 1; | |
95f4adde | 517 | } |
6dbe3af9 KZ |
518 | break; |
519 | case 0: | |
3160589d SK |
520 | ctl.req.day = local_time.tm_yday + 1; |
521 | ctl.req.year = local_time.tm_year + 1900; | |
535fd6d2 | 522 | if (!ctl.req.month) |
3160589d | 523 | ctl.req.month = local_time.tm_mon + 1; |
6dbe3af9 KZ |
524 | break; |
525 | default: | |
6e1eda6f RM |
526 | warnx(_("bad usage")); |
527 | errtryhelp(EXIT_FAILURE); | |
6dbe3af9 | 528 | } |
aae4f87e | 529 | |
ffc56357 SK |
530 | if (0 < ctl.req.week) { |
531 | int yday = week_to_day(&ctl); | |
db9baa8a | 532 | int leap = leap_year(&ctl, ctl.req.year); |
ffc56357 | 533 | int m = 1; |
c1732e62 | 534 | |
aae4f87e | 535 | if (yday < 1) |
4a7424a5 | 536 | errx(EXIT_FAILURE, _("illegal week value: year %d " |
c1732e62 | 537 | "doesn't have week %d"), |
ffc56357 | 538 | ctl.req.year, ctl.req.week); |
e1abe57e | 539 | while (m <= DECEMBER && yday > days_in_month[leap][m]) |
ffc56357 | 540 | yday -= days_in_month[leap][m++]; |
03f8bc1f | 541 | if (DECEMBER < m && ctl.weektype & WEEK_NUM_ISO) { |
c1732e62 KZ |
542 | /* In some years (e.g. 2010 in ISO mode) it's possible |
543 | * to have a remnant of week 53 starting the year yet | |
544 | * the year in question ends during 52, in this case | |
545 | * we're assuming that early remnant is being referred | |
546 | * to if 53 is given as argument. */ | |
e1abe57e | 547 | if (ctl.req.week != week_number(31, DECEMBER, ctl.req.year - 1, &ctl)) |
c1732e62 | 548 | errx(EXIT_FAILURE, |
4a7424a5 | 549 | _("illegal week value: year %d " |
c1732e62 | 550 | "doesn't have week %d"), |
ffc56357 | 551 | ctl.req.year, ctl.req.week); |
aae4f87e | 552 | } |
ffc56357 | 553 | if (!ctl.req.month) |
7800509b | 554 | ctl.req.month = MONTHS_IN_YEAR < m ? 1 : m; |
aae4f87e TK |
555 | } |
556 | ||
0c440bd7 | 557 | weekdays_init(&ctl); |
b549058b | 558 | headers_init(&ctl); |
6dbe3af9 | 559 | |
6013e1eb | 560 | if (colors_init(ctl.colormode, "cal") == 0) { |
f31049f9 TW |
561 | /* disable */ |
562 | ctl.req.day = 0; | |
563 | ctl.weektype &= ~WEEK_NUM_MASK; | |
aae4f87e | 564 | } |
d7a92b89 | 565 | |
7800509b | 566 | if (yflag || Yflag) { |
95f4adde | 567 | ctl.gutter_width = 3; |
2bcf8f79 WP |
568 | if (!ctl.num_months) |
569 | ctl.num_months = MONTHS_IN_YEAR; | |
7800509b MK |
570 | if (yflag) { |
571 | ctl.req.start_month = 1; /* start from Jan */ | |
572 | ctl.header_year = 1; /* print year number */ | |
573 | } | |
574 | } | |
575 | ||
27fafcf8 AL |
576 | if (ctl.vertical) |
577 | ctl.gutter_width = 1; | |
578 | ||
8315a2ff KZ |
579 | if (ctl.num_months > 1 && ctl.months_in_row == 0) { |
580 | ctl.months_in_row = MONTHS_IN_YEAR_ROW; /* default */ | |
581 | ||
0e68b637 TW |
582 | if (cols > 0) |
583 | ctl.months_in_row = cols; | |
584 | else if (isatty(STDOUT_FILENO)) { | |
f06d8b69 KZ |
585 | int w, mw, extra, new_n; |
586 | ||
587 | w = get_terminal_width(80); | |
588 | mw = ctl.julian ? DOY_MONTH_WIDTH : DOM_MONTH_WIDTH; | |
589 | ||
590 | if (w < mw) | |
591 | w = mw; | |
592 | ||
593 | extra = ((w / mw) - 1) * ctl.gutter_width; | |
594 | new_n = (w - extra) / mw; | |
8315a2ff | 595 | |
0e68b637 TW |
596 | switch (cols) { |
597 | case COLUMNS_MAX_THREE: | |
598 | if (new_n < MONTHS_IN_YEAR_ROW) | |
599 | ctl.months_in_row = new_n > 0 ? new_n : 1; | |
600 | break; | |
601 | case COLUMNS_AUTO: | |
f06d8b69 | 602 | ctl.months_in_row = new_n > 0 ? new_n : 1; |
0e68b637 TW |
603 | break; |
604 | } | |
8315a2ff KZ |
605 | } |
606 | } else if (!ctl.months_in_row) | |
7800509b MK |
607 | ctl.months_in_row = 1; |
608 | ||
2bcf8f79 WP |
609 | if (!ctl.num_months) |
610 | ctl.num_months = 1; /* display at least one month */ | |
611 | ||
7800509b | 612 | if (yflag || Yflag) |
ffc56357 | 613 | yearly(&ctl); |
7800509b | 614 | else |
ffc56357 | 615 | monthly(&ctl); |
37d6897f KZ |
616 | |
617 | return EXIT_SUCCESS; | |
6dbe3af9 KZ |
618 | } |
619 | ||
b9c65010 | 620 | /* leap year -- account for gregorian reformation in 1752 */ |
db9baa8a | 621 | static int leap_year(const struct cal_control *ctl, int32_t year) |
3b66dfd6 | 622 | { |
db9baa8a | 623 | if (year <= ctl->reform_year) |
b9c65010 | 624 | return !(year % 4); |
042f62df RP |
625 | |
626 | return ( !(year % 4) && (year % 100) ) || !(year % 400); | |
3b66dfd6 SK |
627 | } |
628 | ||
731441ac KZ |
629 | static void init_monthnames(struct cal_control *ctl) |
630 | { | |
631 | size_t i; | |
632 | ||
87918040 | 633 | if (ctl->full_month[0] != NULL) |
731441ac KZ |
634 | return; /* already initialized */ |
635 | ||
636 | for (i = 0; i < MONTHS_IN_YEAR; i++) | |
4e12a62e | 637 | ctl->full_month[i] = nl_langinfo(ALTMON_1 + i); |
731441ac KZ |
638 | } |
639 | ||
c8805632 KZ |
640 | static void init_abbr_monthnames(struct cal_control *ctl) |
641 | { | |
642 | size_t i; | |
643 | ||
87918040 | 644 | if (ctl->abbr_month[0] != NULL) |
c8805632 KZ |
645 | return; /* already initialized */ |
646 | ||
647 | for (i = 0; i < MONTHS_IN_YEAR; i++) | |
4e12a62e | 648 | ctl->abbr_month[i] = nl_langinfo(_NL_ABALTMON_1 + i); |
c8805632 KZ |
649 | } |
650 | ||
731441ac KZ |
651 | static int monthname_to_number(struct cal_control *ctl, const char *name) |
652 | { | |
653 | size_t i; | |
654 | ||
655 | init_monthnames(ctl); | |
731441ac KZ |
656 | for (i = 0; i < MONTHS_IN_YEAR; i++) |
657 | if (strcasecmp(ctl->full_month[i], name) == 0) | |
658 | return i + 1; | |
659 | ||
c8805632 KZ |
660 | init_abbr_monthnames(ctl); |
661 | for (i = 0; i < MONTHS_IN_YEAR; i++) | |
662 | if (strcasecmp(ctl->abbr_month[i], name) == 0) | |
663 | return i + 1; | |
664 | ||
c49fb9ca | 665 | return -EINVAL; |
731441ac KZ |
666 | } |
667 | ||
0c440bd7 AL |
668 | static void weekdays_init(struct cal_control *ctl) |
669 | { | |
670 | size_t wd; | |
31862cde KZ |
671 | int i; |
672 | ||
673 | for (i = 0; i < DAYS_IN_WEEK; i++) { | |
0c440bd7 AL |
674 | wd = (i + ctl->weekstart) % DAYS_IN_WEEK; |
675 | ctl->weekdays[i] = nl_langinfo(ABDAY_1 + wd); | |
676 | } | |
677 | } | |
b549058b | 678 | static void headers_init(struct cal_control *ctl) |
6dbe3af9 | 679 | { |
0c440bd7 | 680 | size_t i; |
b283141c | 681 | char *cur_dh = day_headings; |
efce94ec | 682 | char tmp[FMT_ST_CHARS]; |
06fa5817 | 683 | int year_len; |
efce94ec | 684 | |
e671a62e | 685 | year_len = snprintf(tmp, sizeof(tmp), "%04d", ctl->req.year); |
33c17354 | 686 | |
06fa5817 YK |
687 | if (year_len < 0 || (size_t)year_len >= sizeof(tmp)) { |
688 | /* XXX impossible error */ | |
689 | return; | |
690 | } | |
691 | ||
5f845cb7 | 692 | for (i = 0; i < DAYS_IN_WEEK; i++) { |
add1924d | 693 | size_t space_left; |
33c17354 | 694 | |
add1924d | 695 | space_left = sizeof(day_headings) - (cur_dh - day_headings); |
1be53cb4 TW |
696 | if (i && space_left) |
697 | strncat(cur_dh++, " ", space_left--); | |
add1924d | 698 | |
71ff238e | 699 | if (space_left <= (ctl->day_width - 1)) |
33c17354 | 700 | break; |
0c440bd7 | 701 | cur_dh += center_str(ctl->weekdays[i], cur_dh, |
71ff238e | 702 | space_left, ctl->day_width - 1); |
33c17354 SK |
703 | } |
704 | ||
731441ac KZ |
705 | init_monthnames(ctl); |
706 | ||
efce94ec | 707 | for (i = 0; i < MONTHS_IN_YEAR; i++) { |
efce94ec | 708 | /* The +1 after year_len is space in between month and year. */ |
a5e322f4 | 709 | if (ctl->week_width < strlen(ctl->full_month[i]) + year_len) |
efce94ec SK |
710 | ctl->header_hint = 1; |
711 | } | |
6dbe3af9 KZ |
712 | } |
713 | ||
852c8d21 | 714 | static void cal_fill_month(struct cal_month *month, const struct cal_control *ctl) |
d4be073d | 715 | { |
db9baa8a | 716 | int first_week_day = day_in_week(ctl, 1, month->month, month->year); |
852c8d21 SK |
717 | int month_days; |
718 | int i, j, weeklines = 0; | |
719 | ||
720 | if (ctl->julian) | |
db9baa8a | 721 | j = day_in_year(ctl, 1, month->month, month->year); |
852c8d21 SK |
722 | else |
723 | j = 1; | |
db9baa8a | 724 | month_days = j + days_in_month[leap_year(ctl, month->year)][month->month]; |
852c8d21 SK |
725 | |
726 | /* True when Sunday is not first day in the output week. */ | |
727 | if (ctl->weekstart) { | |
728 | first_week_day -= ctl->weekstart; | |
729 | if (first_week_day < 0) | |
730 | first_week_day = DAYS_IN_WEEK - ctl->weekstart; | |
731 | month_days += ctl->weekstart - 1; | |
732 | } | |
733 | ||
734 | /* Fill day array. */ | |
735 | for (i = 0; i < MAXDAYS; i++) { | |
736 | if (0 < first_week_day) { | |
737 | month->days[i] = SPACE; | |
738 | first_week_day--; | |
739 | continue; | |
740 | } | |
741 | if (j < month_days) { | |
db9baa8a WP |
742 | if (month->year == ctl->reform_year && |
743 | month->month == REFORMATION_MONTH && | |
744 | (j == 3 || j == 247)) | |
852c8d21 SK |
745 | j += NUMBER_MISSING_DAYS; |
746 | month->days[i] = j; | |
747 | j++; | |
748 | continue; | |
749 | } | |
750 | month->days[i] = SPACE; | |
751 | weeklines++; | |
752 | } | |
66ee8158 | 753 | |
852c8d21 SK |
754 | /* Add week numbers */ |
755 | if (ctl->weektype) { | |
756 | int weeknum = week_number(1, month->month, month->year, ctl); | |
757 | weeklines = MAXDAYS / DAYS_IN_WEEK - weeklines / DAYS_IN_WEEK; | |
758 | for (i = 0; i < MAXDAYS / DAYS_IN_WEEK; i++) { | |
efafeaf6 SK |
759 | if (0 < weeklines) { |
760 | if (52 < weeknum) | |
761 | weeknum = week_number(month->days[i * DAYS_IN_WEEK], month->month, month->year, ctl); | |
852c8d21 | 762 | month->weeks[i] = weeknum++; |
efafeaf6 | 763 | } else |
852c8d21 SK |
764 | month->weeks[i] = SPACE; |
765 | weeklines--; | |
852c8d21 | 766 | } |
66ee8158 KZ |
767 | } |
768 | } | |
769 | ||
852c8d21 SK |
770 | static void cal_output_header(struct cal_month *month, const struct cal_control *ctl) |
771 | { | |
772 | char out[FMT_ST_CHARS]; | |
773 | struct cal_month *i; | |
774 | ||
6013e1eb TW |
775 | cal_enable_color(CAL_COLOR_HEADER); |
776 | ||
7800509b | 777 | if (ctl->header_hint || ctl->header_year) { |
852c8d21 | 778 | for (i = month; i; i = i->next) { |
100a1406 | 779 | snprintf(out, sizeof(out), "%s", ctl->full_month[i->month - 1]); |
a5e322f4 | 780 | center(out, ctl->week_width, i->next == NULL ? 0 : ctl->gutter_width); |
852c8d21 | 781 | } |
7800509b | 782 | if (!ctl->header_year) { |
07c8462f | 783 | fputc('\n', stdout); |
95f4adde | 784 | for (i = month; i; i = i->next) { |
100a1406 | 785 | snprintf(out, sizeof(out), "%04d", i->year); |
a5e322f4 | 786 | center(out, ctl->week_width, i->next == NULL ? 0 : ctl->gutter_width); |
95f4adde | 787 | } |
852c8d21 SK |
788 | } |
789 | } else { | |
790 | for (i = month; i; i = i->next) { | |
100a1406 | 791 | snprintf(out, sizeof(out), "%s %04d", ctl->full_month[i->month - 1], i->year); |
a5e322f4 | 792 | center(out, ctl->week_width, i->next == NULL ? 0 : ctl->gutter_width); |
852c8d21 SK |
793 | } |
794 | } | |
07c8462f | 795 | fputc('\n', stdout); |
852c8d21 SK |
796 | for (i = month; i; i = i->next) { |
797 | if (ctl->weektype) { | |
798 | if (ctl->julian) | |
07c8462f | 799 | printf("%*s%s", (int)ctl->day_width - 1, "", day_headings); |
852c8d21 | 800 | else |
07c8462f | 801 | printf("%*s%s", (int)ctl->day_width, "", day_headings); |
852c8d21 | 802 | } else |
07c8462f KZ |
803 | fputs(day_headings, stdout); |
804 | if (i->next != NULL) | |
805 | printf("%*s", ctl->gutter_width, ""); | |
852c8d21 | 806 | } |
6013e1eb | 807 | cal_disable_color(CAL_COLOR_HEADER); |
07c8462f | 808 | fputc('\n', stdout); |
852c8d21 SK |
809 | } |
810 | ||
27fafcf8 AL |
811 | static void cal_vert_output_header(struct cal_month *month, |
812 | const struct cal_control *ctl) | |
813 | { | |
814 | char out[FMT_ST_CHARS]; | |
815 | struct cal_month *m; | |
816 | int month_width; | |
817 | ||
818 | month_width = ctl->day_width * (MAXDAYS / DAYS_IN_WEEK); | |
07c8462f | 819 | |
27fafcf8 | 820 | /* Padding for the weekdays */ |
07c8462f KZ |
821 | printf("%*s", (int)ctl->day_width + 1, ""); |
822 | ||
27fafcf8 AL |
823 | if (ctl->header_hint || ctl->header_year) { |
824 | for (m = month; m; m = m->next) { | |
825 | snprintf(out, sizeof(out), "%s", ctl->full_month[m->month - 1]); | |
826 | left(out, month_width, ctl->gutter_width); | |
827 | } | |
828 | if (!ctl->header_year) { | |
07c8462f | 829 | fputc('\n', stdout); |
27fafcf8 | 830 | /* Padding for the weekdays */ |
07c8462f KZ |
831 | printf("%*s", (int)ctl->day_width + 1, ""); |
832 | ||
27fafcf8 AL |
833 | for (m = month; m; m = m->next) { |
834 | snprintf(out, sizeof(out), "%04d", m->year); | |
835 | left(out, month_width, ctl->gutter_width); | |
836 | } | |
837 | } | |
838 | } else { | |
839 | for (m = month; m; m = m->next) { | |
840 | snprintf(out, sizeof(out), "%s %04d", ctl->full_month[m->month - 1], m->year); | |
841 | left(out, month_width, ctl->gutter_width); | |
842 | } | |
843 | } | |
07c8462f | 844 | fputc('\n', stdout); |
27fafcf8 AL |
845 | } |
846 | ||
a6c81d61 KZ |
847 | #define fput_seq(_s) do { if ((_s) && *(_s)) fputs((_s), stdout); } while(0) |
848 | ||
852c8d21 SK |
849 | static void cal_output_months(struct cal_month *month, const struct cal_control *ctl) |
850 | { | |
851 | int reqday, week_line, d; | |
852 | int skip; | |
853 | struct cal_month *i; | |
a6c81d61 KZ |
854 | int firstwork = ctl->weekstart == SUNDAY ? 1 : 0; /* first workday in week */ |
855 | ||
856 | /* Let's keep sequence cached rather than search it for each day */ | |
857 | const char *seq_wo_start = cal_get_color_sequence(CAL_COLOR_WORKDAY); | |
858 | const char *seq_wo_end = cal_get_color_disable_sequence(CAL_COLOR_WORKDAY); | |
859 | const char *seq_we_start = cal_get_color_sequence(CAL_COLOR_WEEKEND); | |
860 | const char *seq_we_end = cal_get_color_disable_sequence(CAL_COLOR_WEEKEND); | |
852c8d21 SK |
861 | |
862 | for (week_line = 0; week_line < MAXDAYS / DAYS_IN_WEEK; week_line++) { | |
863 | for (i = month; i; i = i->next) { | |
864 | /* Determine the day that should be highlighted. */ | |
865 | reqday = 0; | |
866 | if (i->month == ctl->req.month && i->year == ctl->req.year) { | |
867 | if (ctl->julian) | |
868 | reqday = ctl->req.day; | |
869 | else | |
db9baa8a WP |
870 | reqday = ctl->req.day + 1 - |
871 | day_in_year(ctl, 1, i->month, | |
872 | i->year); | |
852c8d21 SK |
873 | } |
874 | ||
875 | if (ctl->weektype) { | |
876 | if (0 < i->weeks[week_line]) { | |
07c8462f | 877 | if ((ctl->weektype & WEEK_NUM_MASK) == i->weeks[week_line]) |
6013e1eb TW |
878 | printf("%s%2d%s", |
879 | cal_get_color_sequence(CAL_COLOR_WEEKNUMBER), | |
880 | i->weeks[week_line], | |
881 | cal_get_color_disable_sequence(CAL_COLOR_WEEKNUMBER)); | |
852c8d21 | 882 | else |
07c8462f | 883 | printf("%2d", i->weeks[week_line]); |
852c8d21 | 884 | } else |
07c8462f | 885 | printf("%2s", ""); |
852c8d21 SK |
886 | skip = ctl->day_width; |
887 | } else | |
888 | /* First day of the week is one char narrower than the other days, | |
889 | * unless week number is printed. */ | |
890 | skip = ctl->day_width - 1; | |
891 | ||
892 | for (d = DAYS_IN_WEEK * week_line; | |
893 | d < DAYS_IN_WEEK * week_line + DAYS_IN_WEEK; d++) { | |
a6c81d61 KZ |
894 | |
895 | int workday = d >= DAYS_IN_WEEK * week_line + firstwork && | |
896 | d <= DAYS_IN_WEEK * week_line + firstwork + 4; | |
897 | ||
852c8d21 | 898 | if (0 < i->days[d]) { |
a6c81d61 KZ |
899 | fput_seq(workday ? seq_wo_start : seq_we_start); |
900 | ||
852c8d21 | 901 | if (reqday == i->days[d]) |
07c8462f KZ |
902 | printf("%*s%s%*d%s", |
903 | skip - (ctl->julian ? 3 : 2), | |
6013e1eb TW |
904 | "", cal_get_color_sequence(CAL_COLOR_TODAY), (ctl->julian ? 3 : 2), |
905 | i->days[d], cal_get_color_disable_sequence(CAL_COLOR_TODAY)); | |
852c8d21 | 906 | else |
07c8462f | 907 | printf("%*d", skip, i->days[d]); |
a6c81d61 KZ |
908 | |
909 | fput_seq(workday ? seq_wo_end : seq_we_end); | |
852c8d21 | 910 | } else |
07c8462f KZ |
911 | printf("%*s", skip, ""); |
912 | ||
852c8d21 SK |
913 | if (skip < (int)ctl->day_width) |
914 | skip++; | |
915 | } | |
07c8462f KZ |
916 | if (i->next != NULL) |
917 | printf("%*s", ctl->gutter_width, ""); | |
07ac4aa9 | 918 | } |
8315a2ff | 919 | if (i == NULL) |
07c8462f | 920 | fputc('\n', stdout); |
852c8d21 SK |
921 | } |
922 | } | |
923 | ||
27fafcf8 AL |
924 | static void |
925 | cal_vert_output_months(struct cal_month *month, const struct cal_control *ctl) | |
926 | { | |
27fafcf8 AL |
927 | int i, reqday, week, d; |
928 | int skip; | |
929 | struct cal_month *m; | |
930 | ||
931 | skip = ctl->day_width; | |
932 | for (i = 0; i < DAYS_IN_WEEK; i++) { | |
933 | left(ctl->weekdays[i], ctl->day_width - 1, 0); | |
934 | for (m = month; m; m = m->next) { | |
935 | reqday = 0; | |
936 | if (m->month == ctl->req.month && m->year == ctl->req.year) { | |
937 | if (ctl->julian) { | |
938 | reqday = ctl->req.day; | |
939 | } else { | |
940 | reqday = ctl->req.day + 1 - | |
941 | day_in_year(ctl, 1, m->month, m->year); | |
942 | } | |
943 | } | |
944 | for (week = 0; week < MAXDAYS / DAYS_IN_WEEK; week++) { | |
945 | d = i + DAYS_IN_WEEK * week; | |
946 | if (0 < m->days[d]) { | |
947 | if (reqday == m->days[d]) { | |
07c8462f | 948 | printf("%*s%s%*d%s", |
27fafcf8 | 949 | skip - (ctl->julian ? 3 : 2), |
6013e1eb TW |
950 | "", |
951 | cal_get_color_sequence(CAL_COLOR_TODAY), | |
952 | (ctl->julian ? 3 : 2), | |
953 | m->days[d], | |
954 | cal_get_color_disable_sequence(CAL_COLOR_TODAY)); | |
27fafcf8 | 955 | } else { |
07c8462f | 956 | printf("%*d", skip, m->days[d]); |
27fafcf8 AL |
957 | } |
958 | } else { | |
07c8462f | 959 | printf("%*s", skip, ""); |
27fafcf8 | 960 | } |
27fafcf8 AL |
961 | skip = ctl->day_width; |
962 | } | |
07c8462f KZ |
963 | if (m->next != NULL) |
964 | printf("%*s", ctl->gutter_width, ""); | |
27fafcf8 | 965 | } |
07c8462f | 966 | fputc('\n', stdout); |
27fafcf8 AL |
967 | } |
968 | if (!ctl->weektype) | |
969 | return; | |
970 | ||
07c8462f | 971 | printf("%*s", (int)ctl->day_width - 1, ""); |
27fafcf8 AL |
972 | for (m = month; m; m = m->next) { |
973 | for (week = 0; week < MAXDAYS / DAYS_IN_WEEK; week++) { | |
974 | if (0 < m->weeks[week]) { | |
07c8462f KZ |
975 | if ((ctl->weektype & WEEK_NUM_MASK) == m->weeks[week]) |
976 | printf("%s%*d%s", | |
6013e1eb | 977 | cal_get_color_sequence(CAL_COLOR_WEEKNUMBER), |
27fafcf8 | 978 | skip - (ctl->julian ? 3 : 2), |
6013e1eb TW |
979 | m->weeks[week], |
980 | cal_get_color_disable_sequence(CAL_COLOR_WEEKNUMBER)); | |
07c8462f KZ |
981 | else |
982 | printf("%*d", skip, m->weeks[week]); | |
983 | } else | |
984 | printf("%*s", skip, ""); | |
27fafcf8 | 985 | } |
07c8462f KZ |
986 | if (m->next != NULL) |
987 | printf("%*s", ctl->gutter_width, ""); | |
27fafcf8 | 988 | } |
07c8462f | 989 | fputc('\n', stdout); |
27fafcf8 AL |
990 | } |
991 | ||
992 | ||
852c8d21 SK |
993 | static void monthly(const struct cal_control *ctl) |
994 | { | |
6ed057ad | 995 | struct cal_month *m, *ms; |
2395f93c | 996 | int i, rows, month = ctl->req.start_month ? ctl->req.start_month : ctl->req.month; |
7800509b MK |
997 | int32_t year = ctl->req.year; |
998 | ||
ccf3dd50 D |
999 | /* cal -3, cal -Y --span, etc. */ |
1000 | if (ctl->span_months) { | |
2395f93c | 1001 | int new_month = month - ctl->num_months / 2; |
ccf3dd50 | 1002 | if (new_month < 1) { |
2395f93c KZ |
1003 | new_month *= -1; |
1004 | year -= (new_month / MONTHS_IN_YEAR) + 1; | |
1005 | ||
1006 | if (new_month > MONTHS_IN_YEAR) | |
1007 | new_month %= MONTHS_IN_YEAR; | |
1008 | month = MONTHS_IN_YEAR - new_month; | |
1009 | } else | |
ccf3dd50 | 1010 | month = new_month; |
7800509b | 1011 | } |
f60117b5 | 1012 | |
6ed057ad TW |
1013 | ms = xcalloc(ctl->months_in_row, sizeof(*ms)); |
1014 | ||
1015 | for (i = 0; i < ctl->months_in_row - 1; i++) | |
1016 | ms[i].next = &ms[i + 1]; | |
f60117b5 | 1017 | |
7800509b MK |
1018 | rows = (ctl->num_months - 1) / ctl->months_in_row; |
1019 | for (i = 0; i < rows + 1 ; i++){ | |
151baa02 J |
1020 | if (i == rows && ctl->num_months % ctl->months_in_row > 0) |
1021 | for (int n = (ctl->num_months % ctl->months_in_row) - 1; n < ctl->months_in_row; n++) | |
6ed057ad TW |
1022 | ms[n].next = NULL; |
1023 | ||
1024 | for (m = ms; m; m = m->next){ | |
7800509b MK |
1025 | m->month = month++; |
1026 | m->year = year; | |
1027 | if (MONTHS_IN_YEAR < month) { | |
1028 | year++; | |
1029 | month = 1; | |
1030 | } | |
1031 | cal_fill_month(m, ctl); | |
1032 | } | |
27fafcf8 | 1033 | if (ctl->vertical) { |
07c8462f KZ |
1034 | if (i > 0) |
1035 | fputc('\n', stdout); /* Add a line between row */ | |
1036 | ||
6ed057ad TW |
1037 | cal_vert_output_header(ms, ctl); |
1038 | cal_vert_output_months(ms, ctl); | |
27fafcf8 | 1039 | } else { |
6ed057ad TW |
1040 | cal_output_header(ms, ctl); |
1041 | cal_output_months(ms, ctl); | |
27fafcf8 | 1042 | } |
e66ba1bf | 1043 | } |
6ed057ad | 1044 | free(ms); |
6dbe3af9 KZ |
1045 | } |
1046 | ||
ffc56357 | 1047 | static void yearly(const struct cal_control *ctl) |
d4be073d | 1048 | { |
7586e9d1 | 1049 | size_t year_width; |
add1924d | 1050 | |
7586e9d1 KZ |
1051 | year_width = (size_t) ctl->months_in_row * ctl->week_width |
1052 | + ((size_t) ctl->months_in_row - 1) * ctl->gutter_width; | |
7800509b MK |
1053 | |
1054 | if (ctl->header_year) { | |
07c8462f KZ |
1055 | char out[FMT_ST_CHARS]; |
1056 | ||
100a1406 | 1057 | snprintf(out, sizeof(out), "%04d", ctl->req.year); |
7800509b | 1058 | center(out, year_width, 0); |
07c8462f | 1059 | fputs("\n\n", stdout); |
d162fcb5 | 1060 | } |
7800509b | 1061 | monthly(ctl); |
6dbe3af9 KZ |
1062 | } |
1063 | ||
1064 | /* | |
1065 | * day_in_year -- | |
1066 | * return the 1 based day number within the year | |
1067 | */ | |
db9baa8a WP |
1068 | static int day_in_year(const struct cal_control *ctl, |
1069 | int day, int month, int32_t year) | |
d4be073d | 1070 | { |
6dbe3af9 KZ |
1071 | int i, leap; |
1072 | ||
db9baa8a | 1073 | leap = leap_year(ctl, year); |
6dbe3af9 KZ |
1074 | for (i = 1; i < month; i++) |
1075 | day += days_in_month[leap][i]; | |
d162fcb5 | 1076 | return day; |
6dbe3af9 KZ |
1077 | } |
1078 | ||
1079 | /* | |
1080 | * day_in_week | |
1081 | * return the 0 based day number for any date from 1 Jan. 1 to | |
1082 | * 31 Dec. 9999. Assumes the Gregorian reformation eliminates | |
d68f076f SK |
1083 | * 3 Sep. 1752 through 13 Sep. 1752, and returns invalid weekday |
1084 | * during the period of 11 days. | |
6dbe3af9 | 1085 | */ |
db9baa8a WP |
1086 | static int day_in_week(const struct cal_control *ctl, int day, |
1087 | int month, int32_t year) | |
91ac9ef5 | 1088 | { |
6ce7eca3 KZ |
1089 | /* |
1090 | * The magic constants in the reform[] array are, in a simplified | |
1091 | * sense, the remaining days after slicing into one week periods the total | |
1092 | * days from the beginning of the year to the target month. That is, | |
1093 | * weeks + reform[] days gets us to the target month. The exception is, | |
1094 | * that for the months past February 'DOY - 1' must be used. | |
1095 | * | |
1096 | * DoY (Day of Year): total days to the target month | |
1097 | * | |
1098 | * Month 1 2 3 4 5 6 7 8 9 10 11 12 | |
1099 | * DoY 0 31 59 90 120 151 181 212 243 273 304 334 | |
1100 | * DoY % 7 0 3 | |
1101 | * DoY - 1 % 7 - -- 2 5 0 3 5 1 4 6 2 4 | |
1102 | * reform[] = { 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 }; | |
1103 | * | |
1104 | * Note: these calculations are for non leap years. | |
1105 | */ | |
3c49b23a KZ |
1106 | static const int reform[] = { 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 }; |
1107 | static const int old[] = { 5, 1, 0, 3, 5, 1, 3, 6, 2, 4, 0, 2 }; | |
1108 | ||
db9baa8a | 1109 | if (year != ctl->reform_year + 1) |
e1abe57e | 1110 | year -= month < MARCH; |
91ac9ef5 | 1111 | else |
e1abe57e | 1112 | year -= (month < MARCH) + 14; |
db9baa8a WP |
1113 | if (ctl->reform_year < year |
1114 | || (year == ctl->reform_year && REFORMATION_MONTH < month) | |
1115 | || (year == ctl->reform_year | |
1116 | && month == REFORMATION_MONTH && 13 < day)) { | |
1dca3edc WP |
1117 | return ((int64_t) year + (year / 4) |
1118 | - (year / 100) + (year / 400) | |
1119 | + reform[month - 1] + day) % DAYS_IN_WEEK; | |
26f3a386 | 1120 | } |
db9baa8a WP |
1121 | if (year < ctl->reform_year |
1122 | || (year == ctl->reform_year && month < REFORMATION_MONTH) | |
1123 | || (year == ctl->reform_year && month == REFORMATION_MONTH && day < 3)) | |
1dca3edc WP |
1124 | return ((int64_t) year + year / 4 + old[month - 1] + day) |
1125 | % DAYS_IN_WEEK; | |
91ac9ef5 | 1126 | return NONEDAY; |
6dbe3af9 KZ |
1127 | } |
1128 | ||
c36c4a4e TK |
1129 | /* |
1130 | * week_number | |
efafeaf6 | 1131 | * return the week number of a given date, 1..54. |
c36c4a4e TK |
1132 | * Supports ISO-8601 and North American modes. |
1133 | * Day may be given as Julian day of the year mode, in which | |
1134 | * case the month is disregarded entirely. | |
1135 | */ | |
4a7424a5 | 1136 | static int week_number(int day, int month, int32_t year, const struct cal_control *ctl) |
c1732e62 KZ |
1137 | { |
1138 | int fday = 0, yday; | |
db9baa8a | 1139 | const int wday = day_in_week(ctl, 1, JANUARY, year); |
c1732e62 | 1140 | |
b549058b | 1141 | if (ctl->weektype & WEEK_NUM_ISO) |
c1732e62 | 1142 | fday = wday + (wday >= FRIDAY ? -2 : 5); |
efafeaf6 SK |
1143 | else { |
1144 | /* WEEK_NUM_US: Jan 1 is always First week, that may | |
1145 | * begin previous year. That means there is very seldom | |
1146 | * more than 52 weeks, */ | |
1147 | fday = wday + 6; | |
1148 | } | |
c1732e62 KZ |
1149 | /* For julian dates the month can be set to 1, the global julian |
1150 | * variable cannot be relied upon here, because we may recurse | |
1151 | * internally for 31.12. which would not work. */ | |
e1abe57e SK |
1152 | if (day > DAYS_IN_MONTH) |
1153 | month = JANUARY; | |
c1732e62 | 1154 | |
db9baa8a WP |
1155 | yday = day_in_year(ctl, day, month, year); |
1156 | if (year == ctl->reform_year && yday >= YDAY_AFTER_MISSING) | |
74ce680a | 1157 | fday -= NUMBER_MISSING_DAYS; |
c1732e62 KZ |
1158 | |
1159 | /* Last year is last year */ | |
e1abe57e SK |
1160 | if (yday + fday < DAYS_IN_WEEK) |
1161 | return week_number(31, DECEMBER, year - 1, ctl); | |
c1732e62 KZ |
1162 | |
1163 | /* Or it could be part of the next year. The reformation year had less | |
1164 | * days than 365 making this check invalid, but reformation year ended | |
1165 | * on Sunday and in week 51, so it's ok here. */ | |
b549058b | 1166 | if (ctl->weektype == WEEK_NUM_ISO && yday >= 363 |
db9baa8a WP |
1167 | && day_in_week(ctl, day, month, year) >= MONDAY |
1168 | && day_in_week(ctl, day, month, year) <= WEDNESDAY | |
1169 | && day_in_week(ctl, 31, DECEMBER, year) >= MONDAY | |
1170 | && day_in_week(ctl, 31, DECEMBER, year) <= WEDNESDAY) | |
e1abe57e | 1171 | return week_number(1, JANUARY, year + 1, ctl); |
c1732e62 | 1172 | |
e1abe57e | 1173 | return (yday + fday) / DAYS_IN_WEEK; |
c36c4a4e TK |
1174 | } |
1175 | ||
aae4f87e TK |
1176 | /* |
1177 | * week_to_day | |
1178 | * return the yday of the first day in a given week inside | |
1179 | * the given year. This may be something other than Monday | |
1180 | * for ISO-8601 modes. For North American numbering this | |
1181 | * always returns a Sunday. | |
1182 | */ | |
ffc56357 | 1183 | static int week_to_day(const struct cal_control *ctl) |
c1732e62 | 1184 | { |
aae4f87e | 1185 | int yday, wday; |
c1732e62 | 1186 | |
db9baa8a | 1187 | wday = day_in_week(ctl, 1, JANUARY, ctl->req.year); |
e1abe57e | 1188 | yday = ctl->req.week * DAYS_IN_WEEK - wday; |
c1732e62 | 1189 | |
e572a765 WP |
1190 | if (ctl->req.year == ctl->reform_year && yday >= YDAY_AFTER_MISSING) |
1191 | yday += NUMBER_MISSING_DAYS; | |
1192 | ||
b549058b | 1193 | if (ctl->weektype & WEEK_NUM_ISO) |
c1732e62 KZ |
1194 | yday -= (wday >= FRIDAY ? -2 : 5); |
1195 | else | |
6304358c | 1196 | yday -= 6; /* WEEK_NUM_US */ |
c1732e62 | 1197 | if (yday <= 0) |
aae4f87e TK |
1198 | return 1; |
1199 | ||
1200 | return yday; | |
1201 | } | |
1202 | ||
d162fcb5 KZ |
1203 | /* |
1204 | * Center string, handling multibyte characters appropriately. | |
1205 | * In addition if the string is too large for the width it's truncated. | |
ff87defc | 1206 | * The number of trailing spaces may be 1 less than the number of leading spaces. |
d162fcb5 | 1207 | */ |
d4be073d KZ |
1208 | static int center_str(const char* src, char* dest, |
1209 | size_t dest_size, size_t width) | |
d162fcb5 | 1210 | { |
104b92f8 PB |
1211 | return mbsalign(src, dest, dest_size, &width, |
1212 | MBS_ALIGN_CENTER, MBA_UNIBYTE_FALLBACK); | |
d162fcb5 KZ |
1213 | } |
1214 | ||
d4be073d | 1215 | static void center(const char *str, size_t len, int separate) |
6dbe3af9 | 1216 | { |
d162fcb5 | 1217 | char lineout[FMT_ST_CHARS]; |
e66ba1bf | 1218 | |
17282538 | 1219 | center_str(str, lineout, ARRAY_SIZE(lineout), len); |
07c8462f | 1220 | fputs(lineout, stdout); |
e66ba1bf | 1221 | |
07c8462f KZ |
1222 | if (separate) |
1223 | printf("%*s", separate, ""); | |
6dbe3af9 | 1224 | } |
4de7efb5 AL |
1225 | static int left_str(const char* src, char* dest, |
1226 | size_t dest_size, size_t width) | |
1227 | { | |
1228 | return mbsalign(src, dest, dest_size, &width, | |
1229 | MBS_ALIGN_LEFT, MBA_UNIBYTE_FALLBACK); | |
1230 | } | |
6dbe3af9 | 1231 | |
4de7efb5 AL |
1232 | static void left(const char *str, size_t len, int separate) |
1233 | { | |
1234 | char lineout[FMT_ST_CHARS]; | |
1235 | ||
1236 | left_str(str, lineout, sizeof(lineout), len); | |
07c8462f | 1237 | fputs(lineout, stdout); |
4de7efb5 | 1238 | |
07c8462f KZ |
1239 | if (separate) |
1240 | printf("%*s", separate, ""); | |
4de7efb5 | 1241 | } |
07c8462f | 1242 | |
ae51e7b4 WP |
1243 | static int parse_reform_year(const char *reform_year) |
1244 | { | |
1245 | size_t i; | |
1246 | ||
1247 | struct reform { | |
1248 | char *name; | |
1249 | int val; | |
1250 | }; | |
1251 | ||
1252 | struct reform years[] = { | |
1253 | {"gregorian", GREGORIAN}, | |
1254 | {"iso", ISO}, | |
1255 | {"1752", GB1752}, | |
1256 | {"julian", JULIAN}, | |
1257 | }; | |
1258 | ||
1259 | for (i = 0; i < ARRAY_SIZE(years); i++) { | |
07c8462f | 1260 | if (strcasecmp(reform_year, years[i].name) == 0) |
ae51e7b4 | 1261 | return years[i].val; |
ae51e7b4 WP |
1262 | } |
1263 | errx(EXIT_FAILURE, "invalid --reform value: '%s'", reform_year); | |
1264 | } | |
1265 | ||
6e1eda6f | 1266 | static void __attribute__((__noreturn__)) usage(void) |
6dbe3af9 | 1267 | { |
6e1eda6f | 1268 | FILE *out = stdout; |
07c8462f | 1269 | |
201d43fd SK |
1270 | fputs(USAGE_HEADER, out); |
1271 | fprintf(out, _(" %s [options] [[[day] month] year]\n"), program_invocation_short_name); | |
535fd6d2 | 1272 | fprintf(out, _(" %s [options] <timestamp|monthname>\n"), program_invocation_short_name); |
d4be073d | 1273 | |
233ad1fa PB |
1274 | fputs(USAGE_SEPARATOR, out); |
1275 | fputs(_("Display a calendar, or some part of it.\n"), out); | |
1276 | fputs(_("Without any arguments, display the current month.\n"), out); | |
1277 | ||
201d43fd | 1278 | fputs(USAGE_OPTIONS, out); |
233ad1fa PB |
1279 | fputs(_(" -1, --one show only a single month (default)\n"), out); |
1280 | fputs(_(" -3, --three show three months spanning the date\n"), out); | |
7800509b | 1281 | fputs(_(" -n, --months <num> show num months starting with date's month\n"), out); |
ccf3dd50 | 1282 | fputs(_(" -S, --span span the date when displaying multiple months\n"), out); |
201d43fd SK |
1283 | fputs(_(" -s, --sunday Sunday as first day of week\n"), out); |
1284 | fputs(_(" -m, --monday Monday as first day of week\n"), out); | |
ae51e7b4 WP |
1285 | fputs(_(" -j, --julian use day-of-year for all calendars\n"), out); |
1286 | fputs(_(" --reform <val> Gregorian reform date (1752|gregorian|iso|julian)\n"), out); | |
1287 | fputs(_(" --iso alias for --reform=iso\n"), out); | |
233ad1fa | 1288 | fputs(_(" -y, --year show the whole year\n"), out); |
7800509b | 1289 | fputs(_(" -Y, --twelve show the next twelve months\n"), out); |
af7c483e | 1290 | fputs(_(" -w, --week[=<num>] show US or ISO-8601 week numbers\n"), out); |
27fafcf8 | 1291 | fputs(_(" -v, --vertical show day vertically instead of line\n"), out); |
0e68b637 | 1292 | fputs(_(" -c, --columns <width> amount of columns to use\n"), out); |
a7466bdc SK |
1293 | fprintf(out, |
1294 | _(" --color[=<when>] colorize messages (%s, %s or %s)\n"), "auto", "always", "never"); | |
5d51dc2a KZ |
1295 | fprintf(out, |
1296 | " %s\n", USAGE_COLORS_DEFAULT); | |
d4be073d | 1297 | |
201d43fd | 1298 | fputs(USAGE_SEPARATOR, out); |
bad4c729 MY |
1299 | fprintf(out, USAGE_HELP_OPTIONS(23)); |
1300 | fprintf(out, USAGE_MAN_TAIL("cal(1)")); | |
d4be073d | 1301 | |
6e1eda6f | 1302 | exit(EXIT_SUCCESS); |
6dbe3af9 | 1303 | } |