2 * Copyright (c) 1997 Wolfgang Helbig
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: head/usr.bin/ncal/ncal.c 241737 2012-10-19 14:49:42Z ed $
44 #undef lines /* term.h defines this */
46 /* Width of one month with backward compatibility and in regular mode*/
47 #define MONTH_WIDTH_B_J 27
48 #define MONTH_WIDTH_B 20
50 #define MONTH_WIDTH_R_J 24
51 #define MONTH_WIDTH_R 18
55 typedef struct date date
;
58 wchar_t name
[MAX_WIDTH
+ 1];
59 char lines
[7][MAX_WIDTH
+ 1];
60 char weeks
[MAX_WIDTH
+ 1];
61 unsigned int extralen
[7];
68 /* The switches from Julian to Gregorian in some countries */
69 static struct djswitch
{
70 const char *cc
; /* Country code according to ISO 3166 */
71 const char *nm
; /* Name of country */
72 date dt
; /* Last day of Julian calendar */
74 {"AL", "Albania", {1912, 11, 30}},
75 {"AT", "Austria", {1583, 10, 5}},
76 {"AU", "Australia", {1752, 9, 2}},
77 {"BE", "Belgium", {1582, 12, 14}},
78 {"BG", "Bulgaria", {1916, 3, 18}},
79 {"CA", "Canada", {1752, 9, 2}},
80 {"CH", "Switzerland", {1655, 2, 28}},
81 {"CN", "China", {1911, 12, 18}},
82 {"CZ", "Czech Republic",{1584, 1, 6}},
83 {"DE", "Germany", {1700, 2, 18}},
84 {"DK", "Denmark", {1700, 2, 18}},
85 {"ES", "Spain", {1582, 10, 4}},
86 {"FI", "Finland", {1753, 2, 17}},
87 {"FR", "France", {1582, 12, 9}},
88 {"GB", "United Kingdom",{1752, 9, 2}},
89 {"GR", "Greece", {1924, 3, 9}},
90 {"HU", "Hungary", {1587, 10, 21}},
91 {"IS", "Iceland", {1700, 11, 16}},
92 {"IT", "Italy", {1582, 10, 4}},
93 {"JP", "Japan", {1918, 12, 18}},
94 {"LI", "Lithuania", {1918, 2, 1}},
95 {"LN", "Latin", {9999, 05, 31}},
96 {"LU", "Luxembourg", {1582, 12, 14}},
97 {"LV", "Latvia", {1918, 2, 1}},
98 {"NL", "Netherlands", {1582, 12, 14}},
99 {"NO", "Norway", {1700, 2, 18}},
100 {"PL", "Poland", {1582, 10, 4}},
101 {"PT", "Portugal", {1582, 10, 4}},
102 {"RO", "Romania", {1919, 3, 31}},
103 {"RU", "Russia", {1918, 1, 31}},
104 {"SI", "Slovenia", {1919, 3, 4}},
105 {"SE", "Sweden", {1753, 2, 17}},
106 {"TR", "Turkey", {1926, 12, 18}},
107 {"US", "United States", {1752, 9, 2}},
108 {"YU", "Yugoslavia", {1919, 3, 4}}
111 static struct djswitch
*dftswitch
=
112 switches
+ sizeof(switches
) / sizeof(struct djswitch
) - 2;
113 /* default switch (should be "US") */
115 /* Table used to print day of month and week numbers */
116 static char daystr
[] = " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15"
117 " 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31"
118 " 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47"
119 " 48 49 50 51 52 53";
121 /* Table used to print day of year and week numbers */
122 static char jdaystr
[] = " 1 2 3 4 5 6 7 8 9"
123 " 10 11 12 13 14 15 16 17 18 19"
124 " 20 21 22 23 24 25 26 27 28 29"
125 " 30 31 32 33 34 35 36 37 38 39"
126 " 40 41 42 43 44 45 46 47 48 49"
127 " 50 51 52 53 54 55 56 57 58 59"
128 " 60 61 62 63 64 65 66 67 68 69"
129 " 70 71 72 73 74 75 76 77 78 79"
130 " 80 81 82 83 84 85 86 87 88 89"
131 " 90 91 92 93 94 95 96 97 98 99"
132 " 100 101 102 103 104 105 106 107 108 109"
133 " 110 111 112 113 114 115 116 117 118 119"
134 " 120 121 122 123 124 125 126 127 128 129"
135 " 130 131 132 133 134 135 136 137 138 139"
136 " 140 141 142 143 144 145 146 147 148 149"
137 " 150 151 152 153 154 155 156 157 158 159"
138 " 160 161 162 163 164 165 166 167 168 169"
139 " 170 171 172 173 174 175 176 177 178 179"
140 " 180 181 182 183 184 185 186 187 188 189"
141 " 190 191 192 193 194 195 196 197 198 199"
142 " 200 201 202 203 204 205 206 207 208 209"
143 " 210 211 212 213 214 215 216 217 218 219"
144 " 220 221 222 223 224 225 226 227 228 229"
145 " 230 231 232 233 234 235 236 237 238 239"
146 " 240 241 242 243 244 245 246 247 248 249"
147 " 250 251 252 253 254 255 256 257 258 259"
148 " 260 261 262 263 264 265 266 267 268 269"
149 " 270 271 272 273 274 275 276 277 278 279"
150 " 280 281 282 283 284 285 286 287 288 289"
151 " 290 291 292 293 294 295 296 297 298 299"
152 " 300 301 302 303 304 305 306 307 308 309"
153 " 310 311 312 313 314 315 316 317 318 319"
154 " 320 321 322 323 324 325 326 327 328 329"
155 " 330 331 332 333 334 335 336 337 338 339"
156 " 340 341 342 343 344 345 346 347 348 349"
157 " 350 351 352 353 354 355 356 357 358 359"
158 " 360 361 362 363 364 365 366";
160 static int flag_nohighlight
; /* user doesn't want a highlighted today */
161 static int flag_weeks
; /* user wants number of week */
162 static int nswitch
; /* user defined switch date */
163 static int nswitchb
; /* switch date for backward compatibility */
164 static int highlightdate
;
166 static char *center(char *s
, char *t
, int w
);
167 static wchar_t *wcenter(wchar_t *s
, wchar_t *t
, int w
);
168 static int firstday(int y
, int m
);
169 static void highlight(char *dst
, char *src
, int len
, int *extraletters
);
170 static void mkmonthr(int year
, int month
, int jd_flag
,
171 struct monthlines
* monthl
);
172 static void mkmonthb(int year
, int month
, int jd_flag
,
173 struct monthlines
* monthl
);
174 static void mkweekdays(struct weekdays
* wds
);
175 static void monthranger(int year
, int m
, int jd_flag
,
176 int before
, int after
);
177 static void monthrangeb(int year
, int m
, int jd_flag
,
178 int before
, int after
);
179 static int parsemonth(const char *s
, int *m
, int *y
);
180 static void printcc(void);
181 static void printeaster(int year
, int julian
, int orthodox
);
182 static date
*sdater(int ndays
, struct date
* d
);
183 static date
*sdateb(int ndays
, struct date
* d
);
184 static int sndaysr(struct date
* d
);
185 static int sndaysb(struct date
* d
);
186 static void usage(void);
189 main(int argc
, char *argv
[])
191 struct djswitch
*p
, *q
; /* to search user defined switch date */
192 date never
= {10000, 1, 1}; /* outside valid range of dates */
193 date ukswitch
= {1752, 9, 2};/* switch date for Great Britain */
195 int ch
; /* holds the option character */
196 int m
= 0; /* month */
197 int y
= 0; /* year */
198 int flag_backward
= 0; /* user called cal--backward compat. */
199 int flag_wholeyear
= 0; /* user wants the whole year */
200 int flag_julian_cal
= 0; /* user wants Julian Calendar */
201 int flag_julian_day
= 0; /* user wants the Julian day numbers */
202 int flag_orthodox
= 0; /* user wants Orthodox easter */
203 int flag_easter
= 0; /* user wants easter date */
204 int flag_3months
= 0; /* user wants 3 month display (-3) */
205 int flag_after
= 0; /* user wants to see months after */
206 int flag_before
= 0; /* user wants to see months before */
207 int flag_specifiedmonth
= 0;/* user wants to see this month (-m) */
208 int flag_givenmonth
= 0; /* user has specified month [n] */
209 int flag_givenyear
= 0; /* user has specified year [n] */
210 char *cp
; /* character pointer */
211 char *flag_today
= NULL
; /* debug: use date as being today */
212 char *flag_month
= NULL
; /* requested month as string */
213 char *flag_highlightdate
= NULL
; /* debug: date to highlight */
215 const char *locale
; /* locale to get country code */
217 flag_nohighlight
= 0;
221 * Use locale to determine the country code,
222 * and use the country code to determine the default
223 * switchdate and date format from the switches table.
225 if (setlocale(LC_ALL
, "") == NULL
)
227 locale
= setlocale(LC_TIME
, NULL
);
228 if (locale
== NULL
||
229 strcmp(locale
, "C") == 0 ||
230 strcmp(locale
, "POSIX") == 0 ||
231 strcmp(locale
, "ASCII") == 0 ||
232 strcmp(locale
, "US-ASCII") == 0)
234 q
= switches
+ sizeof(switches
) / sizeof(struct djswitch
);
235 for (p
= switches
; p
!= q
; p
++)
236 if ((cp
= strstr(locale
, p
->cc
)) != NULL
&& *(cp
- 1) == '_')
239 nswitch
= ndaysj(&dftswitch
->dt
);
241 nswitch
= ndaysj(&p
->dt
);
247 * Get the filename portion of argv[0] and set flag_backward if
248 * this program is called "cal".
250 if (strncmp(basename(argv
[0]), "cal", strlen("cal")) == 0)
253 /* Set the switch date to United Kingdom if backwards compatible */
255 nswitchb
= ndaysj(&ukswitch
);
259 while ((ch
= getopt(argc
, argv
, "3A:B:Cd:eH:hjJm:Nops:wy")) != -1)
266 errx(EX_USAGE
, "Double -A specified");
267 flag_after
= strtol(optarg
, NULL
, 10);
270 "Argument to -A must be positive");
274 errx(EX_USAGE
, "Double -A specified");
275 flag_before
= strtol(optarg
, NULL
, 10);
276 if (flag_before
<= 0)
278 "Argument to -B must be positive");
283 nswitch
= ndaysj(&never
);
296 flag_highlightdate
= optarg
;
299 flag_nohighlight
= 1;
310 if (flag_specifiedmonth
)
311 errx(EX_USAGE
, "Double -m specified");
313 flag_specifiedmonth
= 1;
331 sizeof(switches
) / sizeof(struct djswitch
);
333 p
!= q
&& strcmp(p
->cc
, optarg
) != 0; p
++)
337 "%s: invalid country code", optarg
);
338 nswitch
= ndaysj(&(p
->dt
));
359 flag_month
= *argv
++;
361 m
= strtol(flag_month
, NULL
, 10);
364 if (strcmp(*argv
, ".") == 0) {
370 y
= tm
->tm_year
+ 1900;
374 if (y
< 1 || y
> 9999)
375 errx(EX_USAGE
, "year `%s' not in range 1..9999", *argv
);
380 if (flag_today
!= NULL
) {
381 y
= strtol(flag_today
, NULL
, 10);
382 m
= strtol(flag_today
+ 5, NULL
, 10);
389 y
= tm
->tm_year
+ 1900;
397 if (flag_month
!= NULL
) {
398 if (parsemonth(flag_month
, &m
, &y
)) {
400 "%s is neither a month number (1..12) nor a name",
406 * What is not supported:
408 * -3 displays 3 months, -A and -B change that behaviour.
410 * -3 displays 3 months, -y says display a whole year.
411 * -3 with a given year but no given month or without -m
412 * -3 displays 3 months, no month specified doesn't make clear
413 * which three months.
414 * -m with a given month
415 * conflicting arguments, both specify the same field.
417 * -y displays the whole year, -m displays a single month.
418 * -y with a given month
419 * -y displays the whole year, the given month displays a single
422 * -y displays the whole year, -A and -B display extra months.
425 /* -3 together with -A or -B. */
426 if (flag_3months
&& (flag_after
|| flag_before
))
427 errx(EX_USAGE
, "-3 together with -A and -B is not supported.");
428 /* -3 together with -y. */
429 if (flag_3months
&& flag_wholeyear
)
430 errx(EX_USAGE
, "-3 together with -y is not supported.");
431 /* -3 together with givenyear but no givenmonth. */
432 if (flag_3months
&& flag_givenyear
&&
433 !(flag_givenmonth
|| flag_specifiedmonth
))
435 "-3 together with a given year but no given month is "
437 /* -m together with xx xxxx. */
438 if (flag_specifiedmonth
&& flag_givenmonth
)
440 "-m together with a given month is not supported.");
441 /* -y together with -m. */
442 if (flag_wholeyear
&& flag_specifiedmonth
)
443 errx(EX_USAGE
, "-y together with -m is not supported.");
444 /* -y together with xx xxxx. */
445 if (flag_wholeyear
&& flag_givenmonth
)
446 errx(EX_USAGE
, "-y together a given month is not supported.");
447 /* -y together with -A or -B. */
448 if (flag_wholeyear
&& (flag_before
> 0 || flag_after
> 0))
449 errx(EX_USAGE
, "-y together a -A or -B is not supported.");
450 /* The rest should be fine. */
452 /* Select the period to display, in order of increasing priority .*/
453 if (flag_wholeyear
||
454 (flag_givenyear
&& !(flag_givenmonth
|| flag_specifiedmonth
))) {
459 if (flag_givenyear
&& flag_givenmonth
) {
463 if (flag_specifiedmonth
) {
468 before
= flag_before
;
482 /* Highlight a specified day or today .*/
483 if (flag_highlightdate
!= NULL
) {
484 dt
.y
= strtol(flag_highlightdate
, NULL
, 10);
485 dt
.m
= strtol(flag_highlightdate
+ 5, NULL
, 10);
486 dt
.d
= strtol(flag_highlightdate
+ 8, NULL
, 10);
493 dt
.y
= tm1
->tm_year
+ 1900;
494 dt
.m
= tm1
->tm_mon
+ 1;
497 highlightdate
= sndaysb(&dt
);
499 /* And now we finally start to calculate and output calendars. */
501 printeaster(y
, flag_julian_cal
, flag_orthodox
);
504 monthrangeb(y
, m
, flag_julian_day
, before
, after
);
506 monthranger(y
, m
, flag_julian_day
, before
, after
);
515 "Usage: cal [general options] [-hjy] [[month] year]\n"
516 " cal [general options] [-hj] [-m month] [year]\n"
517 " ncal [general options] [-hJjpwy] [-s country_code] [[month] year]\n"
518 " ncal [general options] [-hJeo] [year]\n"
519 "General options: [-NC3] [-A months] [-B months]\n"
520 "For debug the highlighting: [-H yyyy-mm-dd] [-d yyyy-mm]\n",
525 /* Print the assumed switches for all countries. */
530 int n
; /* number of lines to print */
531 int m
; /* offset from left to right table entry on the same line */
533 #define FSTR "%c%s %-15s%4d-%02d-%02d"
534 #define DFLT(p) ((p) == dftswitch ? '*' : ' ')
535 #define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d
537 n
= sizeof(switches
) / sizeof(struct djswitch
);
540 for (p
= switches
; p
!= switches
+ n
; p
++)
541 printf(FSTR
" "FSTR
"\n", FSTRARG(p
), FSTRARG(p
+m
));
543 printf(FSTR
"\n", FSTRARG(p
));
546 /* Print the date of easter sunday. */
548 printeaster(int y
, int julian
, int orthodox
)
553 static int d_first
= -1;
556 d_first
= (*nl_langinfo(D_MD_ORDER
) == 'd');
557 /* force orthodox easter for years before 1583 */
569 memset(&tm
, 0, sizeof(tm
));
570 tm
.tm_year
= dt
.y
- 1900;
571 tm
.tm_mon
= dt
.m
- 1;
573 strftime(buf
, sizeof(buf
), d_first
? "%e %B %Y" : "%B %e %Y", &tm
);
577 #define MW(mw, me) ((mw) + me)
578 #define DECREASEMONTH(m, y) \
583 #define INCREASEMONTH(m, y) \
588 #define M2Y(m) ((m) / 12)
589 #define M2M(m) (1 + (m) % 12)
591 /* Print all months for the period in the range [ before .. y-m .. after ]. */
593 monthrangeb(int y
, int m
, int jd_flag
, int before
, int after
)
595 struct monthlines year
[12];
597 char s
[MAX_WIDTH
], t
[MAX_WIDTH
];
598 wchar_t ws
[MAX_WIDTH
], ws1
[MAX_WIDTH
];
607 mpl
= jd_flag
? 2 : 3;
608 mw
= jd_flag
? MONTH_WIDTH_B_J
: MONTH_WIDTH_B
;
609 wdss
= (mpl
== 2) ? " " : "";
611 while (before
!= 0) {
622 * The year header is printed when there are more than 'mpl' months
623 * and if the first month is a multitude of 'mpl'.
624 * If not, it will print the year behind every month.
626 printyearheader
= (after
>= mpl
- 1) && (M2M(m1
) - 1) % mpl
== 0;
631 for (i
= 0; i
!= mpl
&& m
+ i
<= m2
; i
++) {
632 mkmonthb(M2Y(m
+ i
), M2M(m
+ i
) - 1, jd_flag
, year
+ i
);
636 /* Empty line between two rows of months */
640 /* Year at the top. */
641 if (printyearheader
&& M2Y(m
) != prevyear
) {
642 sprintf(s
, "%d", M2Y(m
));
643 printf("%s\n", center(t
, s
, mpl
* mw
));
648 for (i
= 0; i
< count
; i
++)
651 mw
, wcenter(ws
, year
[i
].name
, mw
));
653 swprintf(ws
, sizeof(ws
), L
"%-ls %d",
654 year
[i
].name
, M2Y(m
+ i
));
655 wprintf(L
"%-*ls ", mw
, wcenter(ws1
, ws
, mw
));
659 /* Day of the week names. */
660 for (i
= 0; i
< count
; i
++) {
661 wprintf(L
"%s%ls%s%ls%s%ls%s%ls%s%ls%s%ls%s%ls ",
662 wdss
, wds
.names
[6], wdss
, wds
.names
[0],
663 wdss
, wds
.names
[1], wdss
, wds
.names
[2],
664 wdss
, wds
.names
[3], wdss
, wds
.names
[4],
669 /* And the days of the month. */
670 for (i
= 0; i
!= 6; i
++) {
671 for (j
= 0; j
< count
; j
++)
673 MW(mw
, year
[j
].extralen
[i
]),
683 monthranger(int y
, int m
, int jd_flag
, int before
, int after
)
685 struct monthlines year
[12];
687 char s
[MAX_WIDTH
], t
[MAX_WIDTH
];
695 mpl
= jd_flag
? 3 : 4;
696 mw
= jd_flag
? MONTH_WIDTH_R_J
: MONTH_WIDTH_R
;
698 while (before
!= 0) {
709 * The year header is printed when there are more than 'mpl' months
710 * and if the first month is a multitude of 'mpl'.
711 * If not, it will print the year behind every month.
713 printyearheader
= (after
>= mpl
- 1) && (M2M(m1
) - 1) % mpl
== 0;
718 for (i
= 0; i
!= mpl
&& m
+ i
<= m2
; i
++) {
719 mkmonthr(M2Y(m
+ i
), M2M(m
+ i
) - 1, jd_flag
, year
+ i
);
723 /* Empty line between two rows of months. */
727 /* Year at the top. */
728 if (printyearheader
&& M2Y(m
) != prevyear
) {
729 sprintf(s
, "%d", M2Y(m
));
730 printf("%s\n", center(t
, s
, mpl
* mw
));
736 for (i
= 0; i
< count
; i
++)
738 wprintf(L
"%-*ls", mw
, year
[i
].name
);
740 wprintf(L
"%-ls %-*d", year
[i
].name
,
741 mw
- wcslen(year
[i
].name
) - 1, M2Y(m
+ i
));
744 /* And the days of the month. */
745 for (i
= 0; i
!= 7; i
++) {
747 wprintf(L
"%.2ls", wds
.names
[i
]);
750 for (j
= 0; j
< count
; j
++)
752 MW(mw
, year
[j
].extralen
[i
]),
760 for (i
= 0; i
< count
; i
++)
761 printf("%-*s", mw
, year
[i
].weeks
);
771 mkmonthr(int y
, int m
, int jd_flag
, struct monthlines
*mlines
)
774 struct tm tm
; /* for strftime printing local names of
776 date dt
; /* handy date */
777 int dw
; /* width of numbers */
778 int first
; /* first day of month */
779 int firstm
; /* first day of first week of month */
780 int i
, j
, k
, l
; /* just indices */
781 int last
; /* the first day of next month */
782 int jan1
= 0; /* the first day of this year */
783 char *ds
; /* pointer to day strings (daystr or
786 /* Set name of month. */
787 memset(&tm
, 0, sizeof(tm
));
789 wcsftime(mlines
->name
, sizeof(mlines
->name
) / sizeof(mlines
->name
[0]),
791 mlines
->name
[0] = towupper(mlines
->name
[0]);
794 * Set first and last to the day number of the first day of this
795 * month and the first day of next month respectively. Set jan1 to
796 * the day number of the first day of this year.
798 first
= firstday(y
, m
+ 1);
800 last
= firstday(y
+ 1, 1);
802 last
= firstday(y
, m
+ 2);
805 jan1
= firstday(y
, 1);
808 * Set firstm to the day number of monday of the first week of
809 * this month. (This might be in the last month)
811 firstm
= first
- weekday(first
);
813 /* Set ds (daystring) and dw (daywidth) according to the jd_flag. */
823 * Fill the lines with day of month or day of year (julian day)
824 * line index: i, each line is one weekday. column index: j, each
825 * column is one day number. print column index: k.
827 for (i
= 0; i
!= 7; i
++) {
829 for (j
= firstm
+ i
, k
= 0; j
< last
; j
+= 7, k
+= dw
) {
835 if (j
== highlightdate
&& !flag_nohighlight
836 && isatty(STDOUT_FILENO
))
837 highlight(mlines
->lines
[i
] + k
,
838 ds
+ dt
.d
* dw
, dw
, &l
);
840 memcpy(mlines
->lines
[i
] + k
+ l
,
843 memcpy(mlines
->lines
[i
] + k
+ l
, " ", dw
);
845 mlines
->lines
[i
][k
+ l
] = '\0';
846 mlines
->extralen
[i
] = l
;
849 /* fill the weeknumbers. */
851 for (j
= firstm
, k
= 0; j
< last
; k
+= dw
, j
+= 7)
853 memset(mlines
->weeks
+ k
, ' ', dw
);
855 memcpy(mlines
->weeks
+ k
,
856 ds
+ week(j
, &i
)*dw
, dw
);
857 mlines
->weeks
[k
] = '\0';
862 mkmonthb(int y
, int m
, int jd_flag
, struct monthlines
*mlines
)
865 struct tm tm
; /* for strftime printing local names of
867 date dt
; /* handy date */
868 int dw
; /* width of numbers */
869 int first
; /* first day of month */
870 int firsts
; /* sunday of first week of month */
871 int i
, j
, k
, l
; /* just indices */
872 int jan1
= 0; /* the first day of this year */
873 int last
; /* the first day of next month */
874 char *ds
; /* pointer to day strings (daystr or
877 /* Set ds (daystring) and dw (daywidth) according to the jd_flag */
886 /* Set name of month centered. */
887 memset(&tm
, 0, sizeof(tm
));
889 wcsftime(mlines
->name
, sizeof(mlines
->name
) / sizeof(mlines
->name
[0]),
891 mlines
->name
[0] = towupper(mlines
->name
[0]);
894 * Set first and last to the day number of the first day of this
895 * month and the first day of next month respectively. Set jan1 to
896 * the day number of Jan 1st of this year.
901 first
= sndaysb(&dt
);
921 * Set firsts to the day number of sunday of the first week of
922 * this month. (This might be in the last month)
924 firsts
= first
- (weekday(first
)+1) % 7;
927 * Fill the lines with day of month or day of year (Julian day)
928 * line index: i, each line is one week. column index: j, each
929 * column is one day number. print column index: k.
931 for (i
= 0; i
!= 6; i
++) {
933 for (j
= firsts
+ 7 * i
, k
= 0; j
< last
&& k
!= dw
* 7;
940 if (j
== highlightdate
&& !flag_nohighlight
)
941 highlight(mlines
->lines
[i
] + k
,
942 ds
+ dt
.d
* dw
, dw
, &l
);
944 memcpy(mlines
->lines
[i
] + k
+ l
,
947 memcpy(mlines
->lines
[i
] + k
+ l
, " ", dw
);
950 mlines
->lines
[i
][1] = '\0';
952 mlines
->lines
[i
][k
+ l
] = '\0';
953 mlines
->extralen
[i
] = l
;
957 /* Put the local names of weekdays into the wds. */
959 mkweekdays(struct weekdays
*wds
)
961 int i
, len
, width
= 0;
965 memset(&tm
, 0, sizeof(tm
));
967 for (i
= 0; i
!= 7; i
++) {
968 tm
.tm_wday
= (i
+1) % 7;
969 wcsftime(buf
, sizeof(buf
), L
"%a", &tm
);
970 for (len
= 2; len
> 0; --len
) {
971 if ((width
= wcswidth(buf
, len
)) <= 2)
974 wmemset(wds
->names
[i
], L
'\0', 4);
976 wds
->names
[i
][0] = L
' ';
977 wcsncat(wds
->names
[i
], buf
, len
);
978 wcsncat(wds
->names
[i
], L
" ", 1);
983 * Compute the day number of the first existing date after the first day in
984 * month. (the first day in month and even the month might not exist!)
987 firstday(int y
, int m
)
998 if ((dt
.m
>= m
&& dt
.y
== y
) || dt
.y
> y
)
1007 * Compute the number of days from date, obey the local switch from
1008 * Julian to Gregorian if specified by the user.
1011 sndaysr(struct date
*d
)
1015 if (nswitch
< ndaysj(d
))
1024 * Compute the number of days from date, obey the switch from
1025 * Julian to Gregorian as used by UK and her colonies.
1028 sndaysb(struct date
*d
)
1031 if (nswitchb
< ndaysj(d
))
1037 /* Inverse of sndays. */
1038 static struct date
*
1039 sdater(int nd
, struct date
*d
)
1043 return (gdate(nd
, d
));
1045 return (jdate(nd
, d
));
1048 /* Inverse of sndaysb. */
1049 static struct date
*
1050 sdateb(int nd
, struct date
*d
)
1054 return (gdate(nd
, d
));
1056 return (jdate(nd
, d
));
1059 /* Center string t in string s of length w by putting enough leading blanks. */
1061 center(char *s
, char *t
, int w
)
1063 char blanks
[MAX_WIDTH
];
1065 memset(blanks
, ' ', sizeof(blanks
));
1066 sprintf(s
, "%.*s%s", (int)(w
- strlen(t
)) / 2, blanks
, t
);
1070 /* Center string t in string s of length w by putting enough leading blanks. */
1072 wcenter(wchar_t *s
, wchar_t *t
, int w
)
1074 char blanks
[MAX_WIDTH
];
1076 memset(blanks
, ' ', sizeof(blanks
));
1077 swprintf(s
, MAX_WIDTH
, L
"%.*s%ls", (int)(w
- wcslen(t
)) / 2, blanks
, t
);
1082 parsemonth(const char *s
, int *m
, int *y
)
1088 nm
= (int)strtol(s
, &cp
, 10);
1092 ; /* no special action */
1093 } else if (*cp
== 'f' || *cp
== 'F') {
1096 } else if (*cp
== 'p' || *cp
== 'P') {
1101 if (nm
< 1 || nm
> 12)
1107 if (strptime(s
, "%B", &tm
) != NULL
|| strptime(s
, "%b", &tm
) != NULL
) {
1115 highlight(char *dst
, char *src
, int len
, int *extralen
)
1117 static int first
= 1;
1118 static const char *term_so
, *term_se
;
1121 char tbuf
[1024], cbuf
[512], *b
;
1123 term_se
= term_so
= NULL
;
1125 /* On how to highlight on this type of terminal (if any). */
1126 if (isatty(STDOUT_FILENO
) && tgetent(tbuf
, NULL
) == 1) {
1128 term_so
= tgetstr("so", &b
);
1129 term_se
= tgetstr("se", &b
);
1136 * This check is not necessary, should have been handled before calling
1139 if (flag_nohighlight
) {
1140 memcpy(dst
, src
, len
);
1145 * If it is a real terminal, use the data from the termcap database.
1147 if (term_so
!= NULL
&& term_se
!= NULL
) {
1152 memcpy(dst
, term_so
, strlen(term_so
));
1153 dst
+= strlen(term_so
);
1154 /* the actual text. (minus leading space) */
1157 memcpy(dst
, src
, len
);
1159 /* highlight off. */
1160 memcpy(dst
, term_se
, strlen(term_se
));
1161 *extralen
= strlen(term_so
) + strlen(term_se
);
1166 * Otherwise, print a _, backspace and the letter.
1169 /* skip leading space. */
1176 /* _ and backspace. */
1177 memcpy(dst
, "_\010", 2);
1180 /* the character. */