ncal.c revision 32215
1198157Srrs/*- 2198157Srrs * Copyright (c) 1997 Wolfgang Helbig 3198157Srrs * All rights reserved. 4198157Srrs * 5198157Srrs * Redistribution and use in source and binary forms, with or without 6198157Srrs * modification, are permitted provided that the following conditions 7198157Srrs * are met: 8198157Srrs * 1. Redistributions of source code must retain the above copyright 9198157Srrs * notice, this list of conditions and the following disclaimer. 10198157Srrs * 2. Redistributions in binary form must reproduce the above copyright 11198157Srrs * notice, this list of conditions and the following disclaimer in the 12198157Srrs * documentation and/or other materials provided with the distribution. 13198157Srrs * 14198157Srrs * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15198157Srrs * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16198157Srrs * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17198157Srrs * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18198157Srrs * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19198157Srrs * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20198157Srrs * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21198157Srrs * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22198157Srrs * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23198157Srrs * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24198157Srrs * SUCH DAMAGE. 25198157Srrs * 26198157Srrs * $Id: ncal.c,v 1.2 1997/12/31 15:55:08 helbig Exp $ 27198157Srrs */ 28198157Srrs#include <calendar.h> 29202066Simp#include <err.h> 30202066Simp#include <locale.h> 31198157Srrs#include <stdio.h> 32202066Simp#include <stdlib.h> 33202066Simp#include <string.h> 34202066Simp#include <sysexits.h> 35198157Srrs#include <time.h> 36198157Srrs#include <unistd.h> 37198157Srrs 38198157Srrs/* Width of one month with backward compatibility */ 39198157Srrs#define MONTH_WIDTH_B_J 27 40198157Srrs#define MONTH_WIDTH_B 20 41198157Srrs 42198157Srrs#define MONTH_WIDTH_J 24 43198157Srrs#define MONTH_WIDTH 18 44198157Srrs 45198157Srrs#define MAX_WIDTH 28 46198157Srrs 47198157Srrstypedef struct date date; 48198157Srrs 49198157Srrsstruct monthlines { 50198157Srrs char name[MAX_WIDTH + 1]; 51198157Srrs char lines[7][MAX_WIDTH + 1]; 52198157Srrs char weeks[MAX_WIDTH + 1]; 53198157Srrs}; 54198157Srrs 55198157Srrsstruct weekdays { 56198157Srrs char names[7][4]; 57208165Srrs}; 58211994Sjchandra 59198157Srrs/* The switches from Julian to Gregorian in some countries */ 60198157Srrsstatic struct djswitch { 61198157Srrs char *cc; /* Country code according to ISO 3166 */ 62198157Srrs char *nm; /* Name of country */ 63198157Srrs date dt; /* Last day of Julian calendar */ 64198157Srrs char *efmt; /* strftime format for printing date of easter */ 65198157Srrs} switches[] = { 66198157Srrs {"AL", "Albania", {1912, 11, 30}, "%e %B %Y"}, 67198157Srrs {"AT", "Austria", {1582, 10, 4}, "%e. %B %Y"}, 68198157Srrs {"AU", "Australia", {1752, 9, 2}, "%B %e, %Y"}, 69198157Srrs {"BG", "Bulgaria", {1916, 3, 18}, "%e %B %Y"}, 70198157Srrs {"CA", "Canada", {1752, 9, 2}, "%B %e, %Y"}, 71198157Srrs {"CH", "Switzerland", {1655, 2, 28}, "%e. %B %Y"}, 72198157Srrs {"CN", "China", {1911, 12, 18}, "%e %B %Y"}, 73198157Srrs {"CZ", "Czech Republic",{1584, 1, 6}, "%e %B %Y"}, 74198157Srrs {"DE", "Germany", {1700, 2, 18}, "%e. %B %Y"}, 75198157Srrs {"DK", "Denmark", {1700, 2, 18}, "%e. %B %Y"}, 76198157Srrs {"ES", "Spain", {1582, 10, 4}, "%e de %B de %Y"}, 77198157Srrs {"FR", "France", {1582, 12, 9}, "%e. %B %Y"}, 78198157Srrs {"GB", "United Kingdom",{1752, 9, 2}, "%e %B %Y"}, 79198157Srrs {"GR", "Greece", {1924, 3, 9}, "%e %B %Y"}, 80198157Srrs {"HU", "Hungary", {1587, 10, 21}, "%e %B %Y"}, 81198789Srrs {"IS", "Iceland", {1700, 11, 16}, "%e %B %Y"}, 82198157Srrs {"IT", "Italy", {1582, 10, 4}, "%e %B %Y"}, 83198157Srrs {"JP", "Japan", {1918, 12, 18}, "%Y\x94N %B%e"}, 84198157Srrs {"LV", "Latvia", {1918, 2, 1}, "%e %B %Y"}, 85198157Srrs {"LI", "Lithuania", {1918, 2, 1}, "%e %B %Y"}, 86198157Srrs {"NL", "Netherlands", {1701, 4, 30}, "%e %B %Y"}, 87208165Srrs {"NO", "Norway", {1700, 2, 18}, "%e %B %Y"}, 88198626Srrs {"PL", "Poland", {1582, 10, 4}, "%e %B %Y"}, 89198157Srrs {"PT", "Portugal", {1582, 10, 4}, "%e %B %Y"}, 90211994Sjchandra {"RO", "Romania", {1920, 3, 4}, "%e %B %Y"}, 91211994Sjchandra {"RU", "Russia", {1920, 3, 4}, "%e %B %Y"}, 92211994Sjchandra {"SI", "Slovenia", {1919, 3, 4}, "%e %B %Y"}, 93211994Sjchandra {"SU", "USSR", {1920, 3, 4}, "%e %B %Y"}, 94211994Sjchandra {"SW", "Sweden", {1753, 2, 17}, "%e %B %Y"}, 95198608Srrs {"TR", "Turkey", {1926, 12, 18}, "%e %B %Y"}, 96198608Srrs {"US", "United States", {1752, 9, 2}, "%B %e, %Y"}, 97198608Srrs {"YU", "Yugoslavia", {1919, 3, 4}, "%e %B %Y"} 98198608Srrs}; 99211994Sjchandra 100211994Sjchandrastruct djswitch *dftswitch = 101198608Srrs switches + sizeof(switches) / sizeof(struct djswitch) - 2; 102211996Sjchandra /* default switch (should be "US") */ 103211996Sjchandra 104202066Simp/* Table used to print day of month and week numbers */ 105202066Simpchar daystr[] = " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" 106202092Simp " 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31" 107198157Srrs " 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47" 108198608Srrs " 48 49 50 51 52 53"; 109198608Srrs 110198157Srrs/* Table used to print day of year and week numbers */ 111198157Srrschar jdaystr[] = " 1 2 3 4 5 6 7 8 9" 112198157Srrs " 10 11 12 13 14 15 16 17 18 19" 113198157Srrs " 20 21 22 23 24 25 26 27 28 29" 114198157Srrs " 30 31 32 33 34 35 36 37 38 39" 115198157Srrs " 40 41 42 43 44 45 46 47 48 49" 116198157Srrs " 50 51 52 53 54 55 56 57 58 59" 117198157Srrs " 60 61 62 63 64 65 66 67 68 69" 118198157Srrs " 70 71 72 73 74 75 76 77 78 79" 119198157Srrs " 80 81 82 83 84 85 86 87 88 89" 120198626Srrs " 90 91 92 93 94 95 96 97 98 99" 121198626Srrs " 100 101 102 103 104 105 106 107 108 109" 122198157Srrs " 110 111 112 113 114 115 116 117 118 119" 123198157Srrs " 120 121 122 123 124 125 126 127 128 129" 124198157Srrs " 130 131 132 133 134 135 136 137 138 139" 125198157Srrs " 140 141 142 143 144 145 146 147 148 149" 126208369Sjchandra " 150 151 152 153 154 155 156 157 158 159" 127198157Srrs " 160 161 162 163 164 165 166 167 168 169" 128198157Srrs " 170 171 172 173 174 175 176 177 178 179" 129198157Srrs " 180 181 182 183 184 185 186 187 188 189" 130198157Srrs " 190 191 192 193 194 195 196 197 198 199" 131198157Srrs " 200 201 202 203 204 205 206 207 208 209" 132198157Srrs " 210 211 212 213 214 215 216 217 218 219" 133198157Srrs " 220 221 222 223 224 225 226 227 228 229" 134198626Srrs " 230 231 232 233 234 235 236 237 238 239" 135198626Srrs " 240 241 242 243 244 245 246 247 248 249" 136198157Srrs " 250 251 252 253 254 255 256 257 258 259" 137198157Srrs " 260 261 262 263 264 265 266 267 268 269" 138198157Srrs " 270 271 272 273 274 275 276 277 278 279" 139198157Srrs " 280 281 282 283 284 285 286 287 288 289" 140198157Srrs " 290 291 292 293 294 295 296 297 298 299" 141198157Srrs " 300 301 302 303 304 305 306 307 308 309" 142198157Srrs " 310 311 312 313 314 315 316 317 318 319" 143198157Srrs " 320 321 322 323 324 325 326 327 328 329" 144198157Srrs " 330 331 332 333 334 335 336 337 338 339" 145198157Srrs " 340 341 342 343 344 345 346 347 348 349" 146198157Srrs " 350 351 352 353 354 355 356 357 358 359" 147198157Srrs " 360 361 362 363 364 365 366"; 148198157Srrs 149198157Srrsint flag_weeks; /* user wants number of week */ 150198157Srrsint nswitch; /* user defined switch date */ 151198157Srrsint nswitchb; /* switch date for backward compatibility */ 152198157Srrschar *efmt; /* strftime format string for printeaster() */ 153198157Srrs 154198157Srrschar *center(char *s, char *t, int w); 155198157Srrsvoid mkmonth(int year, int month, int jd_flag, struct monthlines * monthl); 156198157Srrsvoid mkmonthb(int year, int month, int jd_flag, struct monthlines * monthl); 157198157Srrsvoid mkweekdays(struct weekdays * wds); 158198157Srrsvoid printcc(void); 159198157Srrsvoid printeaster(int year, int julian, int orthodox); 160198157Srrsvoid printmonth(int year, int month, int jd_flag); 161198157Srrsvoid printmonthb(int year, int month, int jd_flag); 162198157Srrsvoid printyear(int year, int jd_flag); 163198157Srrsvoid printyearb(int year, int jd_flag); 164198157Srrsdate *sdate(int ndays, struct date * d); 165198157Srrsdate *sdateb(int ndays, struct date * d); 166198157Srrsint sndays(struct date * d); 167198157Srrsint sndaysb(struct date * d); 168198157Srrsvoid usage(void); 169198157Srrsint weekdayb(int nd); 170198626Srrs 171198626Srrsint 172198157Srrsmain(int argc, char *argv[]) 173198157Srrs{ 174198157Srrs struct djswitch *p, *q; /* to search user defined switch date */ 175198626Srrs date never = {10000, 1, 1}; /* outside valid range of dates */ 176198626Srrs date ukswitch = {1752, 9, 2};/* switch date for Great Britain */ 177198157Srrs int ch; /* holds the option character */ 178198157Srrs int m = 0; /* month */ 179198157Srrs int y = 0; /* year */ 180198157Srrs int flag_backward = 0; /* user called cal--backward compat. */ 181198157Srrs int flag_hole_year = 0; /* user wants the whole year */ 182198157Srrs int flag_julian_cal = 0; /* user wants Julian Calendar */ 183198157Srrs int flag_julian_day = 0; /* user wants the Julian day 184198157Srrs * numbers */ 185198157Srrs int flag_orthodox = 0; /* use wants Orthodox easter */ 186198157Srrs int flag_easter = 0; /* use wants easter date */ 187198626Srrs char *cp; /* character pointer */ 188198157Srrs char *locale; /* locale to get country code */ 189198157Srrs 190198626Srrs /* 191198626Srrs * Use locale to determine the country code, 192198626Srrs * and use the country code to determine the default 193198626Srrs * switchdate and date format from the switches table. 194198626Srrs */ 195198626Srrs if ((locale = setlocale(LC_TIME, "")) == NULL) 196198626Srrs warn("setlocale"); 197198626Srrs if (locale == NULL || locale == "C") 198198626Srrs locale = "_US"; 199198626Srrs q = switches + sizeof(switches) / sizeof(struct djswitch); 200198626Srrs for (p = switches; p != q; p++) 201198626Srrs if ((cp = strstr(locale, p->cc)) != NULL && *(cp - 1) == '_') 202198157Srrs break; 203198157Srrs if (p == q) { 204198157Srrs nswitch = ndaysj(&dftswitch->dt); 205208165Srrs efmt = dftswitch->efmt; 206208165Srrs } else { 207208165Srrs nswitch = ndaysj(&p->dt); 208208165Srrs efmt = p->efmt; 209208165Srrs dftswitch = p; 210208165Srrs } 211208165Srrs 212208165Srrs 213208165Srrs /* 214198157Srrs * Get the filename portion of argv[0] and set flag_backward if 215198157Srrs * this program is called "cal". 216198157Srrs */ 217198157Srrs for (cp = argv[0]; *cp; cp++) 218198157Srrs ; 219198157Srrs while (cp >= argv[0] && *cp != '/') 220198157Srrs cp--; 221198157Srrs if (strcmp("cal", ++cp) == 0) 222198157Srrs flag_backward = 1; 223198157Srrs 224198157Srrs /* Set the switch date to United Kingdom if backwards compatible */ 225198157Srrs if (flag_backward) 226198157Srrs nswitchb = ndaysj(&ukswitch); 227198626Srrs 228198157Srrs while ((ch = getopt(argc, argv, "Jejops:wy")) != -1) 229198626Srrs switch (ch) { 230198157Srrs case 'J': 231198626Srrs if (flag_backward) 232198157Srrs usage(); 233198157Srrs nswitch = ndaysj(&never); 234198157Srrs flag_julian_cal = 1; 235198626Srrs break; 236198626Srrs case 'e': 237198157Srrs if (flag_backward) 238198626Srrs usage(); 239198157Srrs flag_easter = 1; 240198157Srrs break; 241198626Srrs case 'j': 242198626Srrs flag_julian_day = 1; 243198626Srrs break; 244198626Srrs case 'o': 245198626Srrs if (flag_backward) 246198626Srrs usage(); 247198626Srrs flag_orthodox = 1; 248198626Srrs flag_easter = 1; 249198626Srrs break; 250198626Srrs case 'p': 251198626Srrs if (flag_backward) 252198626Srrs usage(); 253198626Srrs printcc(); 254198626Srrs return (0); 255198626Srrs break; 256198157Srrs case 's': 257198157Srrs if (flag_backward) 258198626Srrs usage(); 259198626Srrs q = switches + 260198157Srrs sizeof(switches) / sizeof(struct djswitch); 261198626Srrs for (p = switches; 262198626Srrs p != q && strcmp(p->cc, optarg) != 0; p++) 263198626Srrs ; 264198626Srrs if (p == q) 265198626Srrs errx(EX_USAGE, 266198626Srrs "%s: invalid country code", optarg); 267198626Srrs nswitch = ndaysj(&(p->dt)); 268198626Srrs break; 269198626Srrs case 'w': 270198626Srrs if (flag_backward) 271198626Srrs usage(); 272198626Srrs flag_weeks = 1; 273198626Srrs break; 274198157Srrs case 'y': 275198626Srrs flag_hole_year = 1; 276198626Srrs break; 277198626Srrs default: 278198626Srrs usage(); 279198626Srrs } 280198626Srrs 281198157Srrs argc -= optind; 282198626Srrs argv += optind; 283198626Srrs 284198157Srrs if (argc == 0) { 285198626Srrs time_t t; 286198626Srrs struct tm *tm; 287198626Srrs 288198626Srrs t = time(NULL); 289198626Srrs tm = localtime(&t); 290198626Srrs y = tm->tm_year + 1900; 291198157Srrs m = tm->tm_mon + 1; 292198626Srrs } 293198157Srrs 294198157Srrs switch (argc) { 295198157Srrs case 2: 296198157Srrs if (flag_easter) 297198157Srrs usage(); 298198626Srrs m = atoi(*argv++); 299198157Srrs if (m < 1 || m > 12) 300198157Srrs errx(EX_USAGE, "month %d not in range 1..12", m); 301198626Srrs /* FALLTHROUGH */ 302198157Srrs case 1: 303198626Srrs y = atoi(*argv++); 304198157Srrs if (y < 1 || y > 9999) 305198626Srrs errx(EX_USAGE, "year %d not in range 1..9999", y); 306198157Srrs break; 307198157Srrs case 0: 308198157Srrs break; 309198157Srrs default: 310198157Srrs usage(); 311198157Srrs } 312198157Srrs 313198157Srrs if (flag_easter) 314198157Srrs printeaster(y, flag_julian_cal, flag_orthodox); 315198157Srrs else if (argc == 1 || flag_hole_year) 316198157Srrs if (flag_backward) 317198157Srrs printyearb(y, flag_julian_day); 318198608Srrs else 319198157Srrs printyear(y, flag_julian_day); 320198157Srrs else 321198157Srrs if (flag_backward) 322198157Srrs printmonthb(y, m, flag_julian_day); 323198626Srrs else 324198157Srrs printmonth(y, m, flag_julian_day); 325198157Srrs 326198157Srrs return (0); 327198157Srrs} 328198157Srrs 329198157Srrsvoid 330198157Srrsusage(void) 331198157Srrs{ 332198157Srrs 333198157Srrs fprintf(stderr, 334198157Srrs "usage: cal [-jy] [month[year]]\n" 335198157Srrs "usage: ncal [-Jjpwy] [-s country_code] [[month] year]\n" 336198157Srrs "usage: ncal [-Jeo] [year]\n"); 337198157Srrs exit(EX_USAGE); 338198157Srrs} 339198157Srrs 340198157Srrs/* print the assumed switches for all countries */ 341198626Srrsvoid 342198157Srrsprintcc(void) 343198157Srrs{ 344198157Srrs struct djswitch *p; 345198626Srrs int n; /* number of lines to print */ 346198157Srrs int m; /* offset from left to right table entry on the same line */ 347198626Srrs 348198157Srrs#define FSTR "%c%s %-15s%4d-%02d-%02d" 349198157Srrs#define DFLT(p) ((p) == dftswitch ? '*' : ' ') 350198157Srrs#define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d 351198157Srrs 352198157Srrs n = sizeof(switches) / sizeof(struct djswitch); 353198157Srrs m = (n + 1) / 2; 354198157Srrs n /= 2; 355198157Srrs for (p = switches; p != switches + n; p++) 356198157Srrs printf(FSTR" "FSTR"\n", FSTRARG(p), FSTRARG(p+m)); 357198626Srrs if (m != n) 358198157Srrs printf(FSTR"\n", FSTRARG(p)); 359198626Srrs} 360198626Srrs 361198626Srrs/* print the date of easter sunday */ 362198626Srrsvoid 363198626Srrsprinteaster(int y, int julian, int orthodox) 364198626Srrs{ 365198626Srrs date dt; 366198626Srrs struct tm tm; 367198626Srrs char buf[80]; 368198626Srrs 369198157Srrs /* force orthodox easter for years before 1583 */ 370198157Srrs if (y < 1583) 371199139Srrs orthodox = 1; 372198626Srrs 373198626Srrs if (orthodox) 374198626Srrs if (julian) 375198626Srrs easteroj(y, &dt); 376198626Srrs else 377198626Srrs easterog(y, &dt); 378198626Srrs else 379198626Srrs easterg(y, &dt); 380198626Srrs 381198626Srrs memset(&tm, 0, sizeof(tm)); 382198626Srrs tm.tm_year = dt.y - 1900; 383198157Srrs tm.tm_mon = dt.m - 1; 384198157Srrs tm.tm_mday = dt.d; 385198157Srrs strftime(buf, sizeof(buf), efmt, &tm); 386198157Srrs printf("%s\n", buf); 387198626Srrs} 388198626Srrs 389198157Srrsvoid 390198157Srrsprintmonth(int y, int m, int jd_flag) 391198157Srrs{ 392198157Srrs struct monthlines month; 393198157Srrs struct weekdays wds; 394198157Srrs int i; 395198157Srrs 396198157Srrs mkmonth(y, m - 1, jd_flag, &month); 397198157Srrs mkweekdays(&wds); 398198157Srrs printf(" %s %d\n", month.name, y); 399198626Srrs for (i = 0; i != 7; i++) 400198626Srrs printf("%.2s%s\n", wds.names[i], month.lines[i]); 401198157Srrs if (flag_weeks) 402198157Srrs printf(" %s\n", month.weeks); 403198157Srrs} 404208369Sjchandra 405198157Srrsvoid 406198157Srrsprintmonthb(int y, int m, int jd_flag) 407198157Srrs{ 408208165Srrs struct monthlines month; 409198626Srrs struct weekdays wds; 410198626Srrs char s[MAX_WIDTH], t[MAX_WIDTH]; 411198157Srrs int i; 412198157Srrs int mw; 413198157Srrs 414198157Srrs mkmonthb(y, m - 1, jd_flag, &month); 415198626Srrs mkweekdays(&wds); 416198626Srrs 417198626Srrs mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 418198157Srrs 419198626Srrs sprintf(s, "%s %d", month.name, y); 420198157Srrs printf("%s\n", center(t, s, mw)); 421198157Srrs 422198157Srrs if (jd_flag) 423198157Srrs printf(" %s %s %s %s %s %s %.2s\n", wds.names[6], wds.names[0], 424198157Srrs wds.names[1], wds.names[2], wds.names[3], 425198157Srrs wds.names[4], wds.names[5]); 426198626Srrs else 427198626Srrs printf("%s%s%s%s%s%s%.2s\n", wds.names[6], wds.names[0], 428198157Srrs wds.names[1], wds.names[2], wds.names[3], 429198157Srrs wds.names[4], wds.names[5]); 430198626Srrs 431198626Srrs for (i = 0; i != 6; i++) 432198157Srrs printf("%s\n", month.lines[i]+1); 433198626Srrs} 434198157Srrs 435198157Srrsvoid 436198157Srrsprintyear(int y, int jd_flag) 437198157Srrs{ 438198157Srrs struct monthlines year[12]; 439198626Srrs struct weekdays wds; 440198626Srrs char s[80], t[80]; 441198157Srrs int i, j; 442198157Srrs int mpl; 443198157Srrs int mw; 444198157Srrs 445198626Srrs for (i = 0; i != 12; i++) 446198157Srrs mkmonth(y, i, jd_flag, year + i); 447198157Srrs mkweekdays(&wds); 448198157Srrs mpl = jd_flag ? 3 : 4; 449198157Srrs mw = jd_flag ? MONTH_WIDTH_J : MONTH_WIDTH; 450198157Srrs 451198157Srrs sprintf(s, "%d", y); 452198157Srrs printf("%s\n", center(t, s, mpl * mw)); 453198157Srrs 454198157Srrs for (j = 0; j != 12; j += mpl) { 455198157Srrs printf(" %-*s%-*s", 456198157Srrs mw, year[j].name, 457198626Srrs mw, year[j + 1].name); 458198157Srrs if (mpl == 3) 459198157Srrs printf("%s\n", year[j + 2].name); 460198157Srrs else 461198157Srrs printf("%-*s%s\n", 462198157Srrs mw, year[j + 2].name, 463198157Srrs year[j + 3].name); 464198157Srrs for (i = 0; i != 7; i++) { 465198157Srrs printf("%.2s%-*s%-*s", 466208165Srrs wds.names[i], 467198157Srrs mw, year[j].lines[i], 468198157Srrs mw, year[j + 1].lines[i]); 469198157Srrs if (mpl == 3) 470198157Srrs printf("%s\n", year[j + 2].lines[i]); 471198157Srrs else 472198157Srrs printf("%-*s%s\n", 473198157Srrs mw, year[j + 2].lines[i], 474198157Srrs year[j + 3].lines[i]); 475198626Srrs } 476198626Srrs if (flag_weeks) 477198157Srrs if (mpl == 3) 478198157Srrs printf(" %-*s%-*s%-s\n", 479198157Srrs mw, year[j].weeks, 480198157Srrs mw, year[j + 1].weeks, 481198157Srrs year[j + 2].weeks); 482198626Srrs else 483198157Srrs printf(" %-*s%-*s%-*s%-s\n", 484198157Srrs mw, year[j].weeks, 485198157Srrs mw, year[j + 1].weeks, 486208165Srrs mw, year[j + 2].weeks, 487198157Srrs year[j + 3].weeks); 488198157Srrs } 489198157Srrs} 490198157Srrs 491198157Srrsvoid 492198157Srrsprintyearb(int y, int jd_flag) 493198157Srrs{ 494198157Srrs struct monthlines year[12]; 495198157Srrs struct weekdays wds; 496198157Srrs char s[80], t[80]; 497198157Srrs int i, j; 498198157Srrs int mpl; 499198157Srrs int mw; 500198626Srrs 501198157Srrs for (i = 0; i != 12; i++) 502198157Srrs mkmonthb(y, i, jd_flag, year + i); 503198626Srrs mkweekdays(&wds); 504198626Srrs mpl = jd_flag ? 2 : 3; 505198626Srrs mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 506198626Srrs 507198626Srrs sprintf(s, "%d", y); 508198626Srrs printf("%s\n\n", center(t, s, mw * mpl + mpl)); 509198626Srrs 510198626Srrs for (j = 0; j != 12; j += mpl) { 511198626Srrs printf("%-*s ", mw, center(s, year[j].name, mw)); 512208165Srrs if (mpl == 2) 513198157Srrs printf("%s\n", center(s, year[j + 1].name, mw)); 514198157Srrs else 515198157Srrs printf("%-*s %s\n", mw, 516198157Srrs center(s, year[j + 1].name, mw), 517198157Srrs center(t, year[j + 2].name, mw)); 518198157Srrs 519198157Srrs if (mpl == 2) 520198157Srrs printf(" %s %s %s %s %s %s %s " 521198157Srrs " %s %s %s %s %s %s %.2s\n", 522198157Srrs wds.names[6], wds.names[0], wds.names[1], 523198157Srrs wds.names[2], wds.names[3], wds.names[4], 524198157Srrs wds.names[5], 525198157Srrs wds.names[6], wds.names[0], wds.names[1], 526198626Srrs wds.names[2], wds.names[3], wds.names[4], 527198157Srrs wds.names[5]); 528198157Srrs else 529198626Srrs printf("%s%s%s%s%s%s%s " 530198157Srrs "%s%s%s%s%s%s%s " 531198626Srrs "%s%s%s%s%s%s%.2s\n", 532198157Srrs wds.names[6], wds.names[0], wds.names[1], 533198626Srrs wds.names[2], wds.names[3], wds.names[4], 534198157Srrs wds.names[5], 535198157Srrs wds.names[6], wds.names[0], wds.names[1], 536203754Srrs wds.names[2], wds.names[3], wds.names[4], 537203754Srrs wds.names[5], 538198157Srrs wds.names[6], wds.names[0], wds.names[1], 539198157Srrs wds.names[2], wds.names[3], wds.names[4], 540198157Srrs wds.names[5]); 541198157Srrs for (i = 0; i != 6; i++) { 542198626Srrs if (mpl == 2) 543198157Srrs printf("%-*s %s\n", 544198157Srrs mw, year[j].lines[i]+1, 545198157Srrs year[j + 1].lines[i]+1); 546198157Srrs else 547198157Srrs printf("%-*s %-*s %s\n", 548198608Srrs mw, year[j].lines[i]+1, 549198157Srrs mw, year[j + 1].lines[i]+1, 550198626Srrs year[j + 2].lines[i]+1); 551198157Srrs 552198157Srrs } 553198157Srrs } 554198157Srrs} 555198157Srrs 556198157Srrsvoid 557198626Srrsmkmonth(int y, int m, int jd_flag, struct monthlines *mlines) 558198157Srrs{ 559198157Srrs 560198157Srrs struct tm tm; /* for strftime printing local names of 561198157Srrs * months */ 562198157Srrs date dt; /* handy date */ 563198157Srrs int dw; /* width of numbers */ 564198626Srrs int first; /* first day of month */ 565198157Srrs int firstm; /* first day of first week of month */ 566198157Srrs int i, j, k; /* just indices */ 567210630Sjchandra int last; /* the first day of next month */ 568210630Sjchandra int jan1 = 0; /* the first day of this year */ 569198157Srrs char *ds; /* pointer to day strings (daystr or 570198157Srrs * jdaystr) */ 571198157Srrs 572198626Srrs /* Set name of month. */ 573198157Srrs memset(&tm, 0, sizeof(tm)); 574198157Srrs tm.tm_mon = m; 575198157Srrs strftime(mlines->name, sizeof(mlines->name), "%B", &tm); 576198626Srrs 577198157Srrs /* 578198157Srrs * Set first and last to the day number of the first day of this 579199139Srrs * month and the first day of next month respectively. Set jan1 to 580198626Srrs * the day number of Jan 1st of this year. 581198157Srrs */ 582199139Srrs dt.y = y; 583209808Sjchandra dt.m = m + 1; 584199139Srrs dt.d = 1; 585199139Srrs first = sndays(&dt); 586199139Srrs if (m == 11) { 587199139Srrs dt.y = y + 1; 588199139Srrs dt.m = 1; 589198157Srrs dt.d = 1; 590209808Sjchandra } else { 591198157Srrs dt.y = y; 592198157Srrs dt.m = m + 2; 593198157Srrs dt.d = 1; 594198157Srrs } 595198157Srrs last = sndays(&dt); 596198157Srrs 597198626Srrs if (jd_flag) { 598198157Srrs dt.y = y; 599198157Srrs dt.m = 1; 600198626Srrs dt.d = 1; 601198157Srrs jan1 = sndays(&dt); 602198157Srrs } 603198157Srrs 604198157Srrs /* 605198157Srrs * Set firstm to the day number of monday of the first week of 606198157Srrs * this month. (This might be in the last month) 607198157Srrs */ 608198157Srrs firstm = first - weekday(first); 609198157Srrs 610198626Srrs /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 611198157Srrs if (jd_flag) { 612198157Srrs ds = jdaystr; 613198626Srrs dw = 4; 614210630Sjchandra } else { 615210630Sjchandra ds = daystr; 616210630Sjchandra dw = 3; 617198157Srrs } 618210630Sjchandra 619210630Sjchandra /* 620210630Sjchandra * Fill the lines with day of month or day of year (julian day) 621210630Sjchandra * line index: i, each line is one weekday. column index: j, each 622210630Sjchandra * column is one day number. print column index: k. 623210630Sjchandra */ 624208165Srrs for (i = 0; i != 7; i++) { 625210630Sjchandra for (j = firstm + i, k = 0; j < last; j += 7, k += dw) 626210630Sjchandra if (j >= first) { 627208165Srrs if (jd_flag) 628210630Sjchandra dt.d = j - jan1 + 1; 629208165Srrs else 630199139Srrs sdate(j, &dt); 631208165Srrs memcpy(mlines->lines[i] + k, 632208165Srrs ds + dt.d * dw, dw); 633199139Srrs } else 634199139Srrs memcpy(mlines->lines[i] + k, " ", dw); 635198157Srrs mlines->lines[i][k] = '\0'; 636198157Srrs 637198157Srrs } 638198157Srrs 639198157Srrs /* fill the weeknumbers */ 640198157Srrs if (flag_weeks) { 641198157Srrs for (j = firstm, k = 0; j < last; k += dw, j += 7) 642198626Srrs if (j <= nswitch) 643210630Sjchandra memset(mlines->weeks + k, ' ', dw); 644198157Srrs else 645198626Srrs memcpy(mlines->weeks + k, 646198157Srrs ds + week(j, &i)*dw, dw); 647198157Srrs mlines->weeks[k] = '\0'; 648198157Srrs } 649198157Srrs} 650198157Srrs 651198157Srrsvoid 652209808Sjchandramkmonthb(int y, int m, int jd_flag, struct monthlines *mlines) 653210630Sjchandra{ 654209808Sjchandra 655198157Srrs struct tm tm; /* for strftime printing local names of 656198157Srrs * months */ 657198157Srrs date dt; /* handy date */ 658198157Srrs int dw; /* width of numbers */ 659198626Srrs int first; /* first day of month */ 660198626Srrs int firsts; /* sunday of first week of month */ 661198157Srrs int i, j, k; /* just indices */ 662198157Srrs int jan1 = 0; /* the first day of this year */ 663198157Srrs int last; /* the first day of next month */ 664198157Srrs char *ds; /* pointer to day strings (daystr or 665198157Srrs * jdaystr) */ 666198157Srrs 667198157Srrs /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 668198157Srrs if (jd_flag) { 669198626Srrs ds = jdaystr; 670198157Srrs dw = 4; 671198157Srrs } else { 672198626Srrs ds = daystr; 673198626Srrs dw = 3; 674198157Srrs } 675198157Srrs 676198157Srrs /* Set name of month centered */ 677198157Srrs memset(&tm, 0, sizeof(tm)); 678198626Srrs tm.tm_mon = m; 679198157Srrs strftime(mlines->name, sizeof(mlines->name), "%B", &tm); 680198157Srrs 681198157Srrs /* 682198157Srrs * Set first and last to the day number of the first day of this 683198157Srrs * month and the first day of next month respectively. Set jan1 to 684198157Srrs * the day number of Jan 1st of this year. 685198157Srrs */ 686198157Srrs dt.y = y; 687198157Srrs dt.m = m + 1; 688198157Srrs dt.d = 1; 689198157Srrs first = sndaysb(&dt); 690198157Srrs if (m == 11) { 691198157Srrs dt.y = y + 1; 692198157Srrs dt.m = 1; 693198157Srrs dt.d = 1; 694198626Srrs } else { 695198157Srrs dt.y = y; 696198157Srrs dt.m = m + 2; 697198157Srrs dt.d = 1; 698198157Srrs } 699198157Srrs last = sndaysb(&dt); 700198157Srrs 701198157Srrs if (jd_flag) { 702198157Srrs dt.y = y; 703198157Srrs dt.m = 1; 704198157Srrs dt.d = 1; 705198157Srrs jan1 = sndaysb(&dt); 706198157Srrs } 707198157Srrs 708198157Srrs /* 709198157Srrs * Set firsts to the day number of sunday of the first week of 710198626Srrs * this month. (This might be in the last month) 711198157Srrs */ 712198626Srrs firsts = first - (weekday(first)+1) % 7; 713198157Srrs 714212321Sjchandra /* 715198626Srrs * Fill the lines with day of month or day of year (Julian day) 716212409Sjchandra * line index: i, each line is one week. column index: j, each 717212321Sjchandra * column is one day number. print column index: k. 718212409Sjchandra */ 719212409Sjchandra for (i = 0; i != 6; i++) { 720212409Sjchandra for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7; 721198157Srrs j++, k += dw) 722198626Srrs if (j >= first) { 723198157Srrs if (jd_flag) 724198157Srrs dt.d = j - jan1 + 1; 725208165Srrs else 726208165Srrs sdateb(j, &dt); 727212321Sjchandra memcpy(mlines->lines[i] + k, 728212321Sjchandra ds + dt.d * dw, dw); 729212321Sjchandra } else 730212321Sjchandra memcpy(mlines->lines[i] + k, " ", dw); 731198157Srrs if (k == 0) 732212321Sjchandra mlines->lines[i][1] = '\0'; 733212321Sjchandra else 734212321Sjchandra mlines->lines[i][k] = '\0'; 735212321Sjchandra } 736212321Sjchandra} 737212321Sjchandra 738212321Sjchandra/* Put the local names of weekdays into the wds */ 739198157Srrsvoid 740198157Srrsmkweekdays(struct weekdays *wds) 741198157Srrs{ 742198157Srrs int i; 743198157Srrs struct tm tm; 744198626Srrs 745198157Srrs memset(&tm, 0, sizeof(tm)); 746198157Srrs 747198626Srrs for (i = 0; i != 7; i++) { 748198626Srrs tm.tm_wday = (i+1) % 7; 749198626Srrs strftime(wds->names[i], 4, "%a", &tm); 750198157Srrs wds->names[i][2] = ' '; 751198157Srrs } 752198157Srrs} 753198157Srrs 754198157Srrs/* 755198157Srrs * Compute the number of days from date, obey the local switch from 756198157Srrs * Julian to Gregorian if specified by the user. 757198157Srrs */ 758198157Srrsint 759198157Srrssndays(struct date *d) 760198157Srrs{ 761198157Srrs 762198157Srrs if (nswitch != 0) 763198157Srrs if (nswitch < ndaysj(d)) 764198157Srrs return (ndaysg(d)); 765198626Srrs else 766198157Srrs return (ndaysj(d)); 767198157Srrs else 768198626Srrs return ndaysg(d); 769198157Srrs} 770198157Srrs 771198157Srrs/* 772198157Srrs * Compute the number of days from date, obey the switch from 773198157Srrs * Julian to Gregorian as used by UK and her colonies. 774198157Srrs */ 775198157Srrsint 776198157Srrssndaysb(struct date *d) 777198157Srrs{ 778198157Srrs 779198157Srrs if (nswitchb < ndaysj(d)) 780198157Srrs return (ndaysg(d)); 781198157Srrs else 782198157Srrs return (ndaysj(d)); 783198157Srrs} 784198157Srrs 785198157Srrs/* Inverse of sndays */ 786198626Srrsstruct date * 787198626Srrssdate(int nd, struct date *d) 788198157Srrs{ 789198626Srrs 790198157Srrs if (nswitch < nd) 791198157Srrs return (gdate(nd, d)); 792198157Srrs else 793198626Srrs return (jdate(nd, d)); 794198157Srrs} 795198157Srrs 796198626Srrs/* Inverse of sndaysb */ 797198157Srrsstruct date * 798198157Srrssdateb(int nd, struct date *d) 799198157Srrs{ 800198157Srrs 801198157Srrs if (nswitchb < nd) 802198157Srrs return (gdate(nd, d)); 803198157Srrs else 804198157Srrs return (jdate(nd, d)); 805198157Srrs} 806198157Srrs 807198157Srrs/* Center string t in string s of length w by putting enough leading blanks */ 808198157Srrschar * 809198157Srrscenter(char *s, char *t, int w) 810198157Srrs{ 811198157Srrs char blanks[80]; 812198157Srrs 813198157Srrs memset(blanks, ' ', sizeof(blanks)); 814198626Srrs sprintf(s, "%.*s%s", (int)(w - strlen(t)) / 2, blanks, t); 815198608Srrs return (s); 816198157Srrs} 817198157Srrs