ncal.c revision 191737
1235783Skib/*- 2235783Skib * Copyright (c) 1997 Wolfgang Helbig 3235783Skib * All rights reserved. 4235783Skib * 5235783Skib * Redistribution and use in source and binary forms, with or without 6235783Skib * modification, are permitted provided that the following conditions 7235783Skib * are met: 8235783Skib * 1. Redistributions of source code must retain the above copyright 9235783Skib * notice, this list of conditions and the following disclaimer. 10235783Skib * 2. Redistributions in binary form must reproduce the above copyright 11282199Sdumbbell * notice, this list of conditions and the following disclaimer in the 12235783Skib * documentation and/or other materials provided with the distribution. 13235783Skib * 14235783Skib * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15282199Sdumbbell * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16235783Skib * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17235783Skib * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18235783Skib * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19235783Skib * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20235783Skib * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21235783Skib * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22235783Skib * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23235783Skib * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24235783Skib * SUCH DAMAGE. 25235783Skib */ 26235783Skib 27235783Skib#ifndef lint 28235783Skibstatic const char rcsid[] = 29235783Skib "$FreeBSD: head/usr.bin/ncal/ncal.c 191737 2009-05-02 07:02:31Z rdivacky $"; 30235783Skib#endif /* not lint */ 31235783Skib 32235783Skib#include <calendar.h> 33235783Skib#include <ctype.h> 34235783Skib#include <err.h> 35235783Skib#include <langinfo.h> 36235783Skib#include <locale.h> 37235783Skib#include <stdio.h> 38235783Skib#include <stdlib.h> 39235783Skib#include <string.h> 40235783Skib#include <sysexits.h> 41235783Skib#include <time.h> 42235783Skib#include <unistd.h> 43235783Skib#include <wchar.h> 44235783Skib#include <wctype.h> 45235783Skib#include <term.h> 46235783Skib#undef lines /* term.h defines this */ 47235783Skib 48235783Skib/* Width of one month with backward compatibility */ 49235783Skib#define MONTH_WIDTH_B_J 27 50235783Skib#define MONTH_WIDTH_B 20 51235783Skib 52235783Skib#define MONTH_WIDTH_J 24 53235783Skib#define MONTH_WIDTH 18 54235783Skib 55235783Skib#define MAX_WIDTH 64 56235783Skib 57235783Skibtypedef struct date date; 58235783Skib 59235783Skibstruct monthlines { 60235783Skib wchar_t name[MAX_WIDTH + 1]; 61235783Skib char lines[7][MAX_WIDTH + 1]; 62235783Skib char weeks[MAX_WIDTH + 1]; 63235783Skib}; 64235783Skib 65235783Skibstruct weekdays { 66235783Skib wchar_t names[7][4]; 67235783Skib}; 68235783Skib 69235783Skib/* The switches from Julian to Gregorian in some countries */ 70235783Skibstatic struct djswitch { 71235783Skib const char *cc; /* Country code according to ISO 3166 */ 72235783Skib const char *nm; /* Name of country */ 73282199Sdumbbell date dt; /* Last day of Julian calendar */ 74282199Sdumbbell} switches[] = { 75282199Sdumbbell {"AL", "Albania", {1912, 11, 30}}, 76282199Sdumbbell {"AT", "Austria", {1583, 10, 5}}, 77282199Sdumbbell {"AU", "Australia", {1752, 9, 2}}, 78235783Skib {"BE", "Belgium", {1582, 12, 14}}, 79235783Skib {"BG", "Bulgaria", {1916, 3, 18}}, 80235783Skib {"CA", "Canada", {1752, 9, 2}}, 81235783Skib {"CH", "Switzerland", {1655, 2, 28}}, 82235783Skib {"CN", "China", {1911, 12, 18}}, 83235783Skib {"CZ", "Czech Republic",{1584, 1, 6}}, 84235783Skib {"DE", "Germany", {1700, 2, 18}}, 85282199Sdumbbell {"DK", "Denmark", {1700, 2, 18}}, 86282199Sdumbbell {"ES", "Spain", {1582, 10, 4}}, 87282199Sdumbbell {"FI", "Finland", {1753, 2, 17}}, 88282199Sdumbbell {"FR", "France", {1582, 12, 9}}, 89282199Sdumbbell {"GB", "United Kingdom",{1752, 9, 2}}, 90235783Skib {"GR", "Greece", {1924, 3, 9}}, 91235783Skib {"HU", "Hungary", {1587, 10, 21}}, 92235783Skib {"IS", "Iceland", {1700, 11, 16}}, 93235783Skib {"IT", "Italy", {1582, 10, 4}}, 94235783Skib {"JP", "Japan", {1918, 12, 18}}, 95235783Skib {"LI", "Lithuania", {1918, 2, 1}}, 96282199Sdumbbell {"LN", "Latin", {9999, 05, 31}}, 97282199Sdumbbell {"LU", "Luxembourg", {1582, 12, 14}}, 98282199Sdumbbell {"LV", "Latvia", {1918, 2, 1}}, 99282199Sdumbbell {"NL", "Netherlands", {1582, 12, 14}}, 100282199Sdumbbell {"NO", "Norway", {1700, 2, 18}}, 101235783Skib {"PL", "Poland", {1582, 10, 4}}, 102235783Skib {"PT", "Portugal", {1582, 10, 4}}, 103235783Skib {"RO", "Romania", {1919, 3, 31}}, 104235783Skib {"RU", "Russia", {1918, 1, 31}}, 105235783Skib {"SI", "Slovenia", {1919, 3, 4}}, 106235783Skib {"SW", "Sweden", {1753, 2, 17}}, 107235783Skib {"TR", "Turkey", {1926, 12, 18}}, 108235783Skib {"US", "United States", {1752, 9, 2}}, 109235783Skib {"YU", "Yugoslavia", {1919, 3, 4}} 110235783Skib}; 111235783Skib 112282199Sdumbbellstruct djswitch *dftswitch = 113282199Sdumbbell switches + sizeof(switches) / sizeof(struct djswitch) - 2; 114282199Sdumbbell /* default switch (should be "US") */ 115282199Sdumbbell 116235783Skib/* Table used to print day of month and week numbers */ 117235783Skibchar daystr[] = " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" 118282199Sdumbbell " 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31" 119235783Skib " 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47" 120235783Skib " 48 49 50 51 52 53"; 121282199Sdumbbell 122235783Skib/* Table used to print day of year and week numbers */ 123235783Skibchar jdaystr[] = " 1 2 3 4 5 6 7 8 9" 124235783Skib " 10 11 12 13 14 15 16 17 18 19" 125235783Skib " 20 21 22 23 24 25 26 27 28 29" 126235783Skib " 30 31 32 33 34 35 36 37 38 39" 127235783Skib " 40 41 42 43 44 45 46 47 48 49" 128235783Skib " 50 51 52 53 54 55 56 57 58 59" 129235783Skib " 60 61 62 63 64 65 66 67 68 69" 130235783Skib " 70 71 72 73 74 75 76 77 78 79" 131235783Skib " 80 81 82 83 84 85 86 87 88 89" 132235783Skib " 90 91 92 93 94 95 96 97 98 99" 133235783Skib " 100 101 102 103 104 105 106 107 108 109" 134235783Skib " 110 111 112 113 114 115 116 117 118 119" 135235783Skib " 120 121 122 123 124 125 126 127 128 129" 136235783Skib " 130 131 132 133 134 135 136 137 138 139" 137235783Skib " 140 141 142 143 144 145 146 147 148 149" 138235783Skib " 150 151 152 153 154 155 156 157 158 159" 139235783Skib " 160 161 162 163 164 165 166 167 168 169" 140235783Skib " 170 171 172 173 174 175 176 177 178 179" 141235783Skib " 180 181 182 183 184 185 186 187 188 189" 142235783Skib " 190 191 192 193 194 195 196 197 198 199" 143282199Sdumbbell " 200 201 202 203 204 205 206 207 208 209" 144282199Sdumbbell " 210 211 212 213 214 215 216 217 218 219" 145282199Sdumbbell " 220 221 222 223 224 225 226 227 228 229" 146235783Skib " 230 231 232 233 234 235 236 237 238 239" 147235783Skib " 240 241 242 243 244 245 246 247 248 249" 148235783Skib " 250 251 252 253 254 255 256 257 258 259" 149235783Skib " 260 261 262 263 264 265 266 267 268 269" 150235783Skib " 270 271 272 273 274 275 276 277 278 279" 151235783Skib " 280 281 282 283 284 285 286 287 288 289" 152282199Sdumbbell " 290 291 292 293 294 295 296 297 298 299" 153235783Skib " 300 301 302 303 304 305 306 307 308 309" 154235783Skib " 310 311 312 313 314 315 316 317 318 319" 155235783Skib " 320 321 322 323 324 325 326 327 328 329" 156235783Skib " 330 331 332 333 334 335 336 337 338 339" 157235783Skib " 340 341 342 343 344 345 346 347 348 349" 158235783Skib " 350 351 352 353 354 355 356 357 358 359" 159235783Skib " 360 361 362 363 364 365 366"; 160235783Skib 161235783Skibint flag_weeks; /* user wants number of week */ 162235783Skibint nswitch; /* user defined switch date */ 163235783Skibint nswitchb; /* switch date for backward compatibility */ 164235783Skibconst char *term_so, *term_se; 165235783Skibint today; 166282199Sdumbbell 167282199Sdumbbellchar *center(char *s, char *t, int w); 168235783Skibwchar_t *wcenter(wchar_t *s, wchar_t *t, int w); 169235783Skibvoid mkmonth(int year, int month, int jd_flag, struct monthlines * monthl); 170235783Skibvoid mkmonthb(int year, int month, int jd_flag, struct monthlines * monthl); 171235783Skibvoid mkweekdays(struct weekdays * wds); 172282199Sdumbbellint parsemonth(const char *s, int *m, int *y); 173282199Sdumbbellvoid printcc(void); 174282199Sdumbbellvoid printeaster(int year, int julian, int orthodox); 175235783Skibvoid printmonth(int year, int month, int jd_flag); 176235783Skibvoid printmonthb(int year, int month, int jd_flag); 177282199Sdumbbellvoid printyear(int year, int jd_flag); 178282199Sdumbbellvoid printyearb(int year, int jd_flag); 179282199Sdumbbellint firstday(int y, int m); 180235783Skibdate *sdate(int ndays, struct date * d); 181235783Skibdate *sdateb(int ndays, struct date * d); 182235783Skibint sndays(struct date * d); 183282199Sdumbbellint sndaysb(struct date * d); 184235783Skibstatic void usage(void); 185235783Skibint weekdayb(int nd); 186235783Skib 187235783Skibint 188235783Skibmain(int argc, char *argv[]) 189235783Skib{ 190235783Skib struct djswitch *p, *q; /* to search user defined switch date */ 191235783Skib date never = {10000, 1, 1}; /* outside valid range of dates */ 192235783Skib date ukswitch = {1752, 9, 2};/* switch date for Great Britain */ 193235783Skib int ch; /* holds the option character */ 194235783Skib int m = 0; /* month */ 195235783Skib int y = 0; /* year */ 196282199Sdumbbell int flag_backward = 0; /* user called cal--backward compat. */ 197282199Sdumbbell int flag_hole_year = 0; /* user wants the whole year */ 198255012Sjkim int flag_julian_cal = 0; /* user wants Julian Calendar */ 199255012Sjkim int flag_julian_day = 0; /* user wants the Julian day 200255012Sjkim * numbers */ 201255012Sjkim int flag_orthodox = 0; /* use wants Orthodox easter */ 202255012Sjkim int flag_easter = 0; /* use wants easter date */ 203255012Sjkim char *cp; /* character pointer */ 204255012Sjkim char *flag_month = NULL; /* requested month as string */ 205255012Sjkim const char *locale; /* locale to get country code */ 206255012Sjkim char tbuf[1024], cbuf[512], *b; 207235783Skib time_t t; 208235783Skib struct tm *tm1; 209235783Skib 210235783Skib term_se = term_so = NULL; 211235783Skib today = 0; 212235783Skib if (isatty(STDOUT_FILENO) && tgetent(tbuf, NULL) == 1) { 213235783Skib date dt; /* handy date */ 214235783Skib 215235783Skib b = cbuf; 216235783Skib term_so = tgetstr("so", &b); 217235783Skib term_se = tgetstr("se", &b); 218282199Sdumbbell t = time(NULL); 219282199Sdumbbell tm1 = localtime(&t); 220282199Sdumbbell dt.y = tm1->tm_year + 1900; 221282199Sdumbbell dt.m = tm1->tm_mon + 1; 222235783Skib dt.d = tm1->tm_mday; 223282199Sdumbbell 224235783Skib today = sndaysb(&dt); 225235783Skib } 226235783Skib 227235783Skib /* 228235783Skib * Use locale to determine the country code, 229235783Skib * and use the country code to determine the default 230235783Skib * switchdate and date format from the switches table. 231282199Sdumbbell */ 232282199Sdumbbell if (setlocale(LC_ALL, "") == NULL) 233282199Sdumbbell warn("setlocale"); 234282199Sdumbbell locale = setlocale(LC_TIME, NULL); 235235783Skib if (locale == NULL || 236235783Skib strcmp(locale, "C") == 0 || 237235783Skib strcmp(locale, "POSIX") == 0 || 238235783Skib strcmp(locale, "ASCII") == 0 || 239282199Sdumbbell strcmp(locale, "US-ASCII") == 0) 240235783Skib locale = "_US"; 241235783Skib q = switches + sizeof(switches) / sizeof(struct djswitch); 242235783Skib for (p = switches; p != q; p++) 243235783Skib if ((cp = strstr(locale, p->cc)) != NULL && *(cp - 1) == '_') 244255012Sjkim break; 245255012Sjkim if (p == q) { 246235783Skib nswitch = ndaysj(&dftswitch->dt); 247255012Sjkim } else { 248255012Sjkim nswitch = ndaysj(&p->dt); 249255012Sjkim dftswitch = p; 250255012Sjkim } 251255012Sjkim 252255012Sjkim 253255012Sjkim /* 254255012Sjkim * Get the filename portion of argv[0] and set flag_backward if 255235783Skib * this program is called "cal". 256255012Sjkim */ 257255012Sjkim cp = strrchr(argv[0], '/'); 258235783Skib cp = (cp == NULL) ? argv[0] : cp + 1; 259282199Sdumbbell if (strcmp("cal", cp) == 0) 260235783Skib flag_backward = 1; 261235783Skib 262235783Skib /* Set the switch date to United Kingdom if backwards compatible */ 263235783Skib if (flag_backward) 264235783Skib nswitchb = ndaysj(&ukswitch); 265282199Sdumbbell 266282199Sdumbbell while ((ch = getopt(argc, argv, "Jehjm:ops:wy")) != -1) 267282199Sdumbbell switch (ch) { 268235783Skib case 'J': 269235783Skib if (flag_backward) 270235783Skib usage(); 271235783Skib nswitch = ndaysj(&never); 272235783Skib flag_julian_cal = 1; 273235783Skib break; 274235783Skib case 'h': 275235783Skib term_so = term_se = NULL; 276235783Skib break; 277235783Skib case 'e': 278235783Skib if (flag_backward) 279282199Sdumbbell usage(); 280282199Sdumbbell flag_easter = 1; 281235783Skib break; 282235783Skib case 'j': 283235783Skib flag_julian_day = 1; 284235783Skib break; 285235783Skib case 'm': 286235783Skib flag_month = optarg; 287235783Skib break; 288235783Skib case 'o': 289235783Skib if (flag_backward) 290235783Skib usage(); 291235783Skib flag_orthodox = 1; 292235783Skib flag_easter = 1; 293235783Skib break; 294235783Skib case 'p': 295235783Skib if (flag_backward) 296235783Skib usage(); 297235783Skib printcc(); 298235783Skib return (0); 299235783Skib break; 300235783Skib case 's': 301235783Skib if (flag_backward) 302235783Skib usage(); 303235783Skib q = switches + 304235783Skib sizeof(switches) / sizeof(struct djswitch); 305235783Skib for (p = switches; 306235783Skib p != q && strcmp(p->cc, optarg) != 0; p++) 307235783Skib ; 308235783Skib if (p == q) 309235783Skib errx(EX_USAGE, 310235783Skib "%s: invalid country code", optarg); 311235783Skib nswitch = ndaysj(&(p->dt)); 312235783Skib break; 313235783Skib case 'w': 314235783Skib if (flag_backward) 315235783Skib usage(); 316235783Skib flag_weeks = 1; 317235783Skib break; 318235783Skib case 'y': 319235783Skib flag_hole_year = 1; 320235783Skib break; 321235783Skib default: 322235783Skib usage(); 323235783Skib } 324235783Skib 325235783Skib argc -= optind; 326235783Skib argv += optind; 327235783Skib 328235783Skib switch (argc) { 329235783Skib case 2: 330235783Skib if (flag_easter) 331235783Skib usage(); 332235783Skib flag_month = *argv++; 333235783Skib /* FALLTHROUGH */ 334235783Skib case 1: 335235783Skib y = atoi(*argv++); 336235783Skib if (y < 1 || y > 9999) 337235783Skib errx(EX_USAGE, "year %d not in range 1..9999", y); 338235783Skib break; 339235783Skib case 0: 340235783Skib { 341235783Skib time_t t; 342235783Skib struct tm *tm; 343235783Skib 344282199Sdumbbell t = time(NULL); 345235783Skib tm = localtime(&t); 346235783Skib y = tm->tm_year + 1900; 347235783Skib m = tm->tm_mon + 1; 348235783Skib } 349235783Skib break; 350235783Skib default: 351235783Skib usage(); 352235783Skib } 353235783Skib 354282199Sdumbbell if (flag_month != NULL) { 355235783Skib if (parsemonth(flag_month, &m, &y)) { 356235783Skib errx(EX_USAGE, 357235783Skib "%s is neither a month number (1..12) nor a name", 358235783Skib flag_month); 359235783Skib } 360235783Skib } 361235783Skib 362235783Skib if (flag_easter) 363235783Skib printeaster(y, flag_julian_cal, flag_orthodox); 364235783Skib else if (argc == 1 || flag_hole_year) { 365282199Sdumbbell /* disable the highlight for now */ 366235783Skib today = 0; 367235783Skib if (flag_backward) 368235783Skib printyearb(y, flag_julian_day); 369235783Skib else 370235783Skib printyear(y, flag_julian_day); 371235783Skib } else 372235783Skib if (flag_backward) 373235783Skib printmonthb(y, m, flag_julian_day); 374235783Skib else 375235783Skib printmonth(y, m, flag_julian_day); 376235783Skib 377235783Skib return (0); 378235783Skib} 379235783Skib 380235783Skibstatic void 381235783Skibusage(void) 382235783Skib{ 383235783Skib 384235783Skib fputs( 385235783Skib "usage: cal [-hjy] [[month] year]\n" 386235783Skib " cal [-hj] [-m month] [year]\n" 387235783Skib " ncal [-hJjpwy] [-s country_code] [[month] year]\n" 388235783Skib " ncal [-hJeo] [year]\n", stderr); 389235783Skib exit(EX_USAGE); 390235783Skib} 391235783Skib 392235783Skib/* print the assumed switches for all countries */ 393235783Skibvoid 394235783Skibprintcc(void) 395235783Skib{ 396235783Skib struct djswitch *p; 397235783Skib int n; /* number of lines to print */ 398235783Skib int m; /* offset from left to right table entry on the same line */ 399235783Skib 400235783Skib#define FSTR "%c%s %-15s%4d-%02d-%02d" 401235783Skib#define DFLT(p) ((p) == dftswitch ? '*' : ' ') 402235783Skib#define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d 403 404 n = sizeof(switches) / sizeof(struct djswitch); 405 m = (n + 1) / 2; 406 n /= 2; 407 for (p = switches; p != switches + n; p++) 408 printf(FSTR" "FSTR"\n", FSTRARG(p), FSTRARG(p+m)); 409 if (m != n) 410 printf(FSTR"\n", FSTRARG(p)); 411} 412 413/* print the date of easter sunday */ 414void 415printeaster(int y, int julian, int orthodox) 416{ 417 date dt; 418 struct tm tm; 419 char buf[80]; 420 static int d_first = -1; 421 422 if (d_first < 0) 423 d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 424 /* force orthodox easter for years before 1583 */ 425 if (y < 1583) 426 orthodox = 1; 427 428 if (orthodox) 429 if (julian) 430 easteroj(y, &dt); 431 else 432 easterog(y, &dt); 433 else 434 easterg(y, &dt); 435 436 memset(&tm, 0, sizeof(tm)); 437 tm.tm_year = dt.y - 1900; 438 tm.tm_mon = dt.m - 1; 439 tm.tm_mday = dt.d; 440 strftime(buf, sizeof(buf), d_first ? "%e %B %Y" : "%B %e %Y", &tm); 441 printf("%s\n", buf); 442} 443 444void 445printmonth(int y, int m, int jd_flag) 446{ 447 struct monthlines month; 448 struct weekdays wds; 449 int i; 450 451 mkmonth(y, m - 1, jd_flag, &month); 452 mkweekdays(&wds); 453 printf(" %ls %d\n", month.name, y); 454 for (i = 0; i != 7; i++) 455 wprintf(L"%.2ls%s\n", wds.names[i], month.lines[i]); 456 if (flag_weeks) 457 printf(" %s\n", month.weeks); 458} 459 460void 461printmonthb(int y, int m, int jd_flag) 462{ 463 struct monthlines month; 464 struct weekdays wds; 465 wchar_t s[MAX_WIDTH], t[MAX_WIDTH]; 466 int i; 467 int mw; 468 469 mkmonthb(y, m - 1, jd_flag, &month); 470 mkweekdays(&wds); 471 472 mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 473 474 swprintf(s, MAX_WIDTH, L"%ls %d", month.name, y); 475 wprintf(L"%ls\n", wcenter(t, s, mw)); 476 477 if (jd_flag) 478 wprintf(L" %ls %ls %ls %ls %ls %ls %.2ls\n", 479 wds.names[6], wds.names[0], 480 wds.names[1], wds.names[2], wds.names[3], 481 wds.names[4], wds.names[5]); 482 else 483 wprintf(L"%ls%ls%ls%ls%ls%ls%.2ls\n", wds.names[6], 484 wds.names[0], wds.names[1], wds.names[2], wds.names[3], 485 wds.names[4], wds.names[5]); 486 487 for (i = 0; i != 6; i++) 488 printf("%s\n", month.lines[i]+1); 489} 490 491void 492printyear(int y, int jd_flag) 493{ 494 struct monthlines year[12]; 495 struct weekdays wds; 496 char s[80], t[80]; 497 int i, j; 498 int mpl; 499 int mw; 500 501 for (i = 0; i != 12; i++) 502 mkmonth(y, i, jd_flag, year + i); 503 mkweekdays(&wds); 504 mpl = jd_flag ? 3 : 4; 505 mw = jd_flag ? MONTH_WIDTH_J : MONTH_WIDTH; 506 507 sprintf(s, "%d", y); 508 printf("%s\n", center(t, s, mpl * mw)); 509 510 for (j = 0; j != 12; j += mpl) { 511 wprintf(L" %-*ls%-*ls", 512 mw, year[j].name, 513 mw, year[j + 1].name); 514 if (mpl == 3) 515 printf("%ls\n", year[j + 2].name); 516 else 517 wprintf(L"%-*ls%ls\n", 518 mw, year[j + 2].name, 519 year[j + 3].name); 520 for (i = 0; i != 7; i++) { 521 wprintf(L"%.2ls%-*s%-*s", 522 wds.names[i], 523 mw, year[j].lines[i], 524 mw, year[j + 1].lines[i]); 525 if (mpl == 3) 526 printf("%s\n", year[j + 2].lines[i]); 527 else 528 printf("%-*s%s\n", 529 mw, year[j + 2].lines[i], 530 year[j + 3].lines[i]); 531 } 532 if (flag_weeks) { 533 if (mpl == 3) 534 printf(" %-*s%-*s%-s\n", 535 mw, year[j].weeks, 536 mw, year[j + 1].weeks, 537 year[j + 2].weeks); 538 else 539 printf(" %-*s%-*s%-*s%-s\n", 540 mw, year[j].weeks, 541 mw, year[j + 1].weeks, 542 mw, year[j + 2].weeks, 543 year[j + 3].weeks); 544 } 545 } 546} 547 548void 549printyearb(int y, int jd_flag) 550{ 551 struct monthlines year[12]; 552 struct weekdays wds; 553 char s[80], t[80]; 554 wchar_t ws[80], wt[80]; 555 int i, j; 556 int mpl; 557 int mw; 558 559 for (i = 0; i != 12; i++) 560 mkmonthb(y, i, jd_flag, year + i); 561 mkweekdays(&wds); 562 mpl = jd_flag ? 2 : 3; 563 mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 564 565 sprintf(s, "%d", y); 566 printf("%s\n\n", center(t, s, mw * mpl + mpl)); 567 568 for (j = 0; j != 12; j += mpl) { 569 wprintf(L"%-*ls ", mw, wcenter(ws, year[j].name, mw)); 570 if (mpl == 2) 571 printf("%ls\n", wcenter(ws, year[j + 1].name, mw)); 572 else 573 wprintf(L"%-*ls %ls\n", mw, 574 wcenter(ws, year[j + 1].name, mw), 575 wcenter(wt, year[j + 2].name, mw)); 576 577 if (mpl == 2) 578 wprintf(L" %ls %ls %ls %ls %ls %ls %ls " 579 " %ls %ls %ls %ls %ls %ls %.2ls\n", 580 wds.names[6], wds.names[0], wds.names[1], 581 wds.names[2], wds.names[3], wds.names[4], 582 wds.names[5], 583 wds.names[6], wds.names[0], wds.names[1], 584 wds.names[2], wds.names[3], wds.names[4], 585 wds.names[5]); 586 else 587 wprintf(L"%ls%ls%ls%ls%ls%ls%ls " 588 "%ls%ls%ls%ls%ls%ls%ls " 589 "%ls%ls%ls%ls%ls%ls%.2ls\n", 590 wds.names[6], wds.names[0], wds.names[1], 591 wds.names[2], wds.names[3], wds.names[4], 592 wds.names[5], 593 wds.names[6], wds.names[0], wds.names[1], 594 wds.names[2], wds.names[3], wds.names[4], 595 wds.names[5], 596 wds.names[6], wds.names[0], wds.names[1], 597 wds.names[2], wds.names[3], wds.names[4], 598 wds.names[5]); 599 for (i = 0; i != 6; i++) { 600 if (mpl == 2) 601 printf("%-*s %s\n", 602 mw, year[j].lines[i]+1, 603 year[j + 1].lines[i]+1); 604 else 605 printf("%-*s %-*s %s\n", 606 mw, year[j].lines[i]+1, 607 mw, year[j + 1].lines[i]+1, 608 year[j + 2].lines[i]+1); 609 610 } 611 } 612} 613 614void 615mkmonth(int y, int m, int jd_flag, struct monthlines *mlines) 616{ 617 618 struct tm tm; /* for strftime printing local names of 619 * months */ 620 date dt; /* handy date */ 621 int dw; /* width of numbers */ 622 int first; /* first day of month */ 623 int firstm; /* first day of first week of month */ 624 int i, j, k, l; /* just indices */ 625 int last; /* the first day of next month */ 626 int jan1 = 0; /* the first day of this year */ 627 char *ds; /* pointer to day strings (daystr or 628 * jdaystr) */ 629 630 /* Set name of month. */ 631 memset(&tm, 0, sizeof(tm)); 632 tm.tm_mon = m; 633 wcsftime(mlines->name, sizeof(mlines->name) / sizeof(mlines->name[0]), 634 L"%OB", &tm); 635 mlines->name[0] = towupper(mlines->name[0]); 636 637 /* 638 * Set first and last to the day number of the first day of this 639 * month and the first day of next month respectively. Set jan1 to 640 * the day number of the first day of this year. 641 */ 642 first = firstday(y, m + 1); 643 if (m == 11) 644 last = firstday(y + 1, 1); 645 else 646 last = firstday(y, m + 2); 647 648 if (jd_flag) 649 jan1 = firstday(y, 1); 650 651 /* 652 * Set firstm to the day number of monday of the first week of 653 * this month. (This might be in the last month) 654 */ 655 firstm = first - weekday(first); 656 657 /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 658 if (jd_flag) { 659 ds = jdaystr; 660 dw = 4; 661 } else { 662 ds = daystr; 663 dw = 3; 664 } 665 666 /* 667 * Fill the lines with day of month or day of year (julian day) 668 * line index: i, each line is one weekday. column index: j, each 669 * column is one day number. print column index: k. 670 */ 671 for (i = 0; i != 7; i++) { 672 l = 0; 673 for (j = firstm + i, k = 0; j < last; j += 7, k += dw) { 674 if (j == today && (term_so != NULL && term_se != NULL)) { 675 l = strlen(term_so); 676 if (jd_flag) 677 dt.d = j - jan1 + 1; 678 else 679 sdateb(j, &dt); 680 /* separator */ 681 mlines->lines[i][k] = ' '; 682 /* the actual text */ 683 memcpy(mlines->lines[i] + k + l, 684 ds + dt.d * dw, dw); 685 /* highlight on */ 686 memcpy(mlines->lines[i] + k + 1, term_so, l); 687 /* highlight off */ 688 memcpy(mlines->lines[i] + k + l + dw, term_se, 689 strlen(term_se)); 690 l = strlen(term_se) + strlen(term_so); 691 continue; 692 } 693 if (j >= first) { 694 if (jd_flag) 695 dt.d = j - jan1 + 1; 696 else 697 sdate(j, &dt); 698 memcpy(mlines->lines[i] + k + l, 699 ds + dt.d * dw, dw); 700 } else 701 memcpy(mlines->lines[i] + k + l, " ", dw); 702 } 703 mlines->lines[i][k + l] = '\0'; 704 705 } 706 707 /* fill the weeknumbers */ 708 if (flag_weeks) { 709 for (j = firstm, k = 0; j < last; k += dw, j += 7) 710 if (j <= nswitch) 711 memset(mlines->weeks + k, ' ', dw); 712 else 713 memcpy(mlines->weeks + k, 714 ds + week(j, &i)*dw, dw); 715 mlines->weeks[k] = '\0'; 716 } 717} 718 719void 720mkmonthb(int y, int m, int jd_flag, struct monthlines *mlines) 721{ 722 723 struct tm tm; /* for strftime printing local names of 724 * months */ 725 date dt; /* handy date */ 726 int dw; /* width of numbers */ 727 int first; /* first day of month */ 728 int firsts; /* sunday of first week of month */ 729 int i, j, k, l; /* just indices */ 730 int jan1 = 0; /* the first day of this year */ 731 int last; /* the first day of next month */ 732 char *ds; /* pointer to day strings (daystr or 733 * jdaystr) */ 734 735 /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 736 if (jd_flag) { 737 ds = jdaystr; 738 dw = 4; 739 } else { 740 ds = daystr; 741 dw = 3; 742 } 743 744 /* Set name of month centered */ 745 memset(&tm, 0, sizeof(tm)); 746 tm.tm_mon = m; 747 wcsftime(mlines->name, sizeof(mlines->name) / sizeof(mlines->name[0]), 748 L"%OB", &tm); 749 mlines->name[0] = towupper(mlines->name[0]); 750 751 /* 752 * Set first and last to the day number of the first day of this 753 * month and the first day of next month respectively. Set jan1 to 754 * the day number of Jan 1st of this year. 755 */ 756 dt.y = y; 757 dt.m = m + 1; 758 dt.d = 1; 759 first = sndaysb(&dt); 760 if (m == 11) { 761 dt.y = y + 1; 762 dt.m = 1; 763 dt.d = 1; 764 } else { 765 dt.y = y; 766 dt.m = m + 2; 767 dt.d = 1; 768 } 769 last = sndaysb(&dt); 770 771 if (jd_flag) { 772 dt.y = y; 773 dt.m = 1; 774 dt.d = 1; 775 jan1 = sndaysb(&dt); 776 } 777 778 /* 779 * Set firsts to the day number of sunday of the first week of 780 * this month. (This might be in the last month) 781 */ 782 firsts = first - (weekday(first)+1) % 7; 783 784 /* 785 * Fill the lines with day of month or day of year (Julian day) 786 * line index: i, each line is one week. column index: j, each 787 * column is one day number. print column index: k. 788 */ 789 for (i = 0; i != 6; i++) { 790 l = 0; 791 for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7; 792 j++, k += dw) { 793 if (j == today && (term_so != NULL && term_se != NULL)) { 794 l = strlen(term_so); 795 if (jd_flag) 796 dt.d = j - jan1 + 1; 797 else 798 sdateb(j, &dt); 799 /* separator */ 800 mlines->lines[i][k] = ' '; 801 /* the actual text */ 802 memcpy(mlines->lines[i] + k + l, 803 ds + dt.d * dw, dw); 804 /* highlight on */ 805 memcpy(mlines->lines[i] + k + 1, term_so, l); 806 /* highlight off */ 807 memcpy(mlines->lines[i] + k + l + dw, term_se, 808 strlen(term_se)); 809 l = strlen(term_se) + strlen(term_so); 810 continue; 811 } 812 if (j >= first) { 813 if (jd_flag) 814 dt.d = j - jan1 + 1; 815 else 816 sdateb(j, &dt); 817 memcpy(mlines->lines[i] + k + l, 818 ds + dt.d * dw, dw); 819 } else 820 memcpy(mlines->lines[i] + k + l, " ", dw); 821 } 822 if (k == 0) 823 mlines->lines[i][1] = '\0'; 824 else 825 mlines->lines[i][k + l] = '\0'; 826 } 827} 828 829/* Put the local names of weekdays into the wds */ 830void 831mkweekdays(struct weekdays *wds) 832{ 833 int i, len; 834 struct tm tm; 835 wchar_t buf[20]; 836 837 memset(&tm, 0, sizeof(tm)); 838 839 for (i = 0; i != 7; i++) { 840 tm.tm_wday = (i+1) % 7; 841 wcsftime(buf, sizeof(buf), L"%a", &tm); 842 len = wcslen(buf); 843 if (len > 2) 844 len = 2; 845 wcscpy(wds->names[i], L" "); 846 wcsncpy(wds->names[i] + 2 - len, buf, len); 847 } 848} 849 850/* 851 * Compute the day number of the first 852 * existing date after the first day in month. 853 * (the first day in month and even the month might not exist!) 854 */ 855int 856firstday(int y, int m) 857{ 858 date dt; 859 int nd; 860 861 dt.y = y; 862 dt.m = m; 863 dt.d = 1; 864 nd = sndays(&dt); 865 for (;;) { 866 sdate(nd, &dt); 867 if ((dt.m >= m && dt.y == y) || dt.y > y) 868 return (nd); 869 else 870 nd++; 871 } 872 /* NEVER REACHED */ 873} 874 875/* 876 * Compute the number of days from date, obey the local switch from 877 * Julian to Gregorian if specified by the user. 878 */ 879int 880sndays(struct date *d) 881{ 882 883 if (nswitch != 0) 884 if (nswitch < ndaysj(d)) 885 return (ndaysg(d)); 886 else 887 return (ndaysj(d)); 888 else 889 return ndaysg(d); 890} 891 892/* 893 * Compute the number of days from date, obey the switch from 894 * Julian to Gregorian as used by UK and her colonies. 895 */ 896int 897sndaysb(struct date *d) 898{ 899 900 if (nswitchb < ndaysj(d)) 901 return (ndaysg(d)); 902 else 903 return (ndaysj(d)); 904} 905 906/* Inverse of sndays */ 907struct date * 908sdate(int nd, struct date *d) 909{ 910 911 if (nswitch < nd) 912 return (gdate(nd, d)); 913 else 914 return (jdate(nd, d)); 915} 916 917/* Inverse of sndaysb */ 918struct date * 919sdateb(int nd, struct date *d) 920{ 921 922 if (nswitchb < nd) 923 return (gdate(nd, d)); 924 else 925 return (jdate(nd, d)); 926} 927 928/* Center string t in string s of length w by putting enough leading blanks */ 929char * 930center(char *s, char *t, int w) 931{ 932 char blanks[80]; 933 934 memset(blanks, ' ', sizeof(blanks)); 935 sprintf(s, "%.*s%s", (int)(w - strlen(t)) / 2, blanks, t); 936 return (s); 937} 938 939/* Center string t in string s of length w by putting enough leading blanks */ 940wchar_t * 941wcenter(wchar_t *s, wchar_t *t, int w) 942{ 943 char blanks[80]; 944 945 memset(blanks, ' ', sizeof(blanks)); 946 swprintf(s, MAX_WIDTH, L"%.*s%ls", (int)(w - wcslen(t)) / 2, blanks, t); 947 return (s); 948} 949 950int 951parsemonth(const char *s, int *m, int *y) 952{ 953 int nm, ny; 954 char *cp; 955 struct tm tm; 956 957 nm = (int)strtol(s, &cp, 10); 958 if (cp != s) { 959 ny = *y; 960 if (*cp == '\0') { 961 ; /* no special action */ 962 } else if (*cp == 'f' || *cp == 'F') { 963 if (nm <= *m) 964 ny++; 965 } else if (*cp == 'p' || *cp == 'P') { 966 if (nm >= *m) 967 ny--; 968 } else 969 return (1); 970 if (nm < 1 || nm > 12) 971 return 1; 972 *m = nm; 973 *y = ny; 974 return (0); 975 } 976 if (strptime(s, "%B", &tm) != NULL || strptime(s, "%b", &tm) != NULL) { 977 *m = tm.tm_mon + 1; 978 return (0); 979 } 980 return (1); 981} 982