ncal.c revision 32282
131744Shelbig/*- 231744Shelbig * Copyright (c) 1997 Wolfgang Helbig 331744Shelbig * All rights reserved. 431744Shelbig * 531744Shelbig * Redistribution and use in source and binary forms, with or without 631744Shelbig * modification, are permitted provided that the following conditions 731744Shelbig * are met: 831744Shelbig * 1. Redistributions of source code must retain the above copyright 931744Shelbig * notice, this list of conditions and the following disclaimer. 1031744Shelbig * 2. Redistributions in binary form must reproduce the above copyright 1131744Shelbig * notice, this list of conditions and the following disclaimer in the 1231744Shelbig * documentation and/or other materials provided with the distribution. 1331744Shelbig * 1431744Shelbig * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1531744Shelbig * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1631744Shelbig * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1731744Shelbig * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1831744Shelbig * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1931744Shelbig * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2031744Shelbig * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2131744Shelbig * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2231744Shelbig * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2331744Shelbig * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2431744Shelbig * SUCH DAMAGE. 2531744Shelbig * 2632282Shelbig * $Id: ncal.c,v 1.3 1998/01/03 15:10:11 helbig Exp $ 2731744Shelbig */ 2831744Shelbig#include <calendar.h> 2931744Shelbig#include <err.h> 3031744Shelbig#include <locale.h> 3131744Shelbig#include <stdio.h> 3231744Shelbig#include <stdlib.h> 3331744Shelbig#include <string.h> 3431744Shelbig#include <sysexits.h> 3531744Shelbig#include <time.h> 3631744Shelbig#include <unistd.h> 3731744Shelbig 3831744Shelbig/* Width of one month with backward compatibility */ 3931744Shelbig#define MONTH_WIDTH_B_J 27 4031744Shelbig#define MONTH_WIDTH_B 20 4131744Shelbig 4231744Shelbig#define MONTH_WIDTH_J 24 4331744Shelbig#define MONTH_WIDTH 18 4431744Shelbig 4531744Shelbig#define MAX_WIDTH 28 4631744Shelbig 4731744Shelbigtypedef struct date date; 4831744Shelbig 4931744Shelbigstruct monthlines { 5031744Shelbig char name[MAX_WIDTH + 1]; 5131744Shelbig char lines[7][MAX_WIDTH + 1]; 5231744Shelbig char weeks[MAX_WIDTH + 1]; 5331744Shelbig}; 5431744Shelbig 5531744Shelbigstruct weekdays { 5631744Shelbig char names[7][4]; 5731744Shelbig}; 5831744Shelbig 5931744Shelbig/* The switches from Julian to Gregorian in some countries */ 6031744Shelbigstatic struct djswitch { 6131744Shelbig char *cc; /* Country code according to ISO 3166 */ 6231744Shelbig char *nm; /* Name of country */ 6331744Shelbig date dt; /* Last day of Julian calendar */ 6432215Shelbig char *efmt; /* strftime format for printing date of easter */ 6531744Shelbig} switches[] = { 6632215Shelbig {"AL", "Albania", {1912, 11, 30}, "%e %B %Y"}, 6732282Shelbig {"AT", "Austria", {1583, 10, 5}, "%e. %B %Y"}, 6832215Shelbig {"AU", "Australia", {1752, 9, 2}, "%B %e, %Y"}, 6932282Shelbig {"BE", "Belgium", {1582, 12, 14}, "%B %e, %Y"}, 7032215Shelbig {"BG", "Bulgaria", {1916, 3, 18}, "%e %B %Y"}, 7132215Shelbig {"CA", "Canada", {1752, 9, 2}, "%B %e, %Y"}, 7232215Shelbig {"CH", "Switzerland", {1655, 2, 28}, "%e. %B %Y"}, 7332215Shelbig {"CN", "China", {1911, 12, 18}, "%e %B %Y"}, 7432215Shelbig {"CZ", "Czech Republic",{1584, 1, 6}, "%e %B %Y"}, 7532215Shelbig {"DE", "Germany", {1700, 2, 18}, "%e. %B %Y"}, 7632215Shelbig {"DK", "Denmark", {1700, 2, 18}, "%e. %B %Y"}, 7732215Shelbig {"ES", "Spain", {1582, 10, 4}, "%e de %B de %Y"}, 7832282Shelbig {"FI", "Finland", {1753, 2, 17}, "%e %B %Y"}, 7932215Shelbig {"FR", "France", {1582, 12, 9}, "%e. %B %Y"}, 8032215Shelbig {"GB", "United Kingdom",{1752, 9, 2}, "%e %B %Y"}, 8132215Shelbig {"GR", "Greece", {1924, 3, 9}, "%e %B %Y"}, 8232215Shelbig {"HU", "Hungary", {1587, 10, 21}, "%e %B %Y"}, 8332215Shelbig {"IS", "Iceland", {1700, 11, 16}, "%e %B %Y"}, 8432215Shelbig {"IT", "Italy", {1582, 10, 4}, "%e %B %Y"}, 8532215Shelbig {"JP", "Japan", {1918, 12, 18}, "%Y\x94N %B%e"}, 8632282Shelbig {"LI", "Lithuania", {1918, 2, 1}, "%e %B %Y"}, 8732282Shelbig {"LN", "Latin", {9999, 31, 12}, "%e %B %Y"}, 8832282Shelbig {"LU", "Luxembourg", {1582, 12, 14}, "%e %B %Y"}, 8932215Shelbig {"LV", "Latvia", {1918, 2, 1}, "%e %B %Y"}, 9032282Shelbig {"NL", "Netherlands", {1582, 12, 14}, "%e %B %Y"}, 9132215Shelbig {"NO", "Norway", {1700, 2, 18}, "%e %B %Y"}, 9232215Shelbig {"PL", "Poland", {1582, 10, 4}, "%e %B %Y"}, 9332215Shelbig {"PT", "Portugal", {1582, 10, 4}, "%e %B %Y"}, 9432282Shelbig {"RO", "Romania", {1919, 3, 31}, "%e %B %Y"}, 9532282Shelbig {"RU", "Russia", {1918, 1, 31}, "%e %B %Y"}, 9632215Shelbig {"SI", "Slovenia", {1919, 3, 4}, "%e %B %Y"}, 9732215Shelbig {"SU", "USSR", {1920, 3, 4}, "%e %B %Y"}, 9832215Shelbig {"SW", "Sweden", {1753, 2, 17}, "%e %B %Y"}, 9932215Shelbig {"TR", "Turkey", {1926, 12, 18}, "%e %B %Y"}, 10032215Shelbig {"US", "United States", {1752, 9, 2}, "%B %e, %Y"}, 10132215Shelbig {"YU", "Yugoslavia", {1919, 3, 4}, "%e %B %Y"} 10231744Shelbig}; 10331744Shelbig 10432215Shelbigstruct djswitch *dftswitch = 10532215Shelbig switches + sizeof(switches) / sizeof(struct djswitch) - 2; 10632215Shelbig /* default switch (should be "US") */ 10732215Shelbig 10831744Shelbig/* Table used to print day of month and week numbers */ 10931744Shelbigchar daystr[] = " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" 11031744Shelbig " 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31" 11131744Shelbig " 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47" 11231744Shelbig " 48 49 50 51 52 53"; 11331744Shelbig 11431744Shelbig/* Table used to print day of year and week numbers */ 11531744Shelbigchar jdaystr[] = " 1 2 3 4 5 6 7 8 9" 11631744Shelbig " 10 11 12 13 14 15 16 17 18 19" 11731744Shelbig " 20 21 22 23 24 25 26 27 28 29" 11831744Shelbig " 30 31 32 33 34 35 36 37 38 39" 11931744Shelbig " 40 41 42 43 44 45 46 47 48 49" 12031744Shelbig " 50 51 52 53 54 55 56 57 58 59" 12131744Shelbig " 60 61 62 63 64 65 66 67 68 69" 12231744Shelbig " 70 71 72 73 74 75 76 77 78 79" 12331744Shelbig " 80 81 82 83 84 85 86 87 88 89" 12431744Shelbig " 90 91 92 93 94 95 96 97 98 99" 12531744Shelbig " 100 101 102 103 104 105 106 107 108 109" 12631744Shelbig " 110 111 112 113 114 115 116 117 118 119" 12731744Shelbig " 120 121 122 123 124 125 126 127 128 129" 12831744Shelbig " 130 131 132 133 134 135 136 137 138 139" 12931744Shelbig " 140 141 142 143 144 145 146 147 148 149" 13031744Shelbig " 150 151 152 153 154 155 156 157 158 159" 13131744Shelbig " 160 161 162 163 164 165 166 167 168 169" 13231744Shelbig " 170 171 172 173 174 175 176 177 178 179" 13331744Shelbig " 180 181 182 183 184 185 186 187 188 189" 13431744Shelbig " 190 191 192 193 194 195 196 197 198 199" 13531744Shelbig " 200 201 202 203 204 205 206 207 208 209" 13631744Shelbig " 210 211 212 213 214 215 216 217 218 219" 13731744Shelbig " 220 221 222 223 224 225 226 227 228 229" 13831744Shelbig " 230 231 232 233 234 235 236 237 238 239" 13931744Shelbig " 240 241 242 243 244 245 246 247 248 249" 14031744Shelbig " 250 251 252 253 254 255 256 257 258 259" 14131744Shelbig " 260 261 262 263 264 265 266 267 268 269" 14231744Shelbig " 270 271 272 273 274 275 276 277 278 279" 14331744Shelbig " 280 281 282 283 284 285 286 287 288 289" 14431744Shelbig " 290 291 292 293 294 295 296 297 298 299" 14531744Shelbig " 300 301 302 303 304 305 306 307 308 309" 14631744Shelbig " 310 311 312 313 314 315 316 317 318 319" 14731744Shelbig " 320 321 322 323 324 325 326 327 328 329" 14831744Shelbig " 330 331 332 333 334 335 336 337 338 339" 14931744Shelbig " 340 341 342 343 344 345 346 347 348 349" 15031744Shelbig " 350 351 352 353 354 355 356 357 358 359" 15131744Shelbig " 360 361 362 363 364 365 366"; 15231744Shelbig 15332139Shelbigint flag_weeks; /* user wants number of week */ 15431744Shelbigint nswitch; /* user defined switch date */ 15531744Shelbigint nswitchb; /* switch date for backward compatibility */ 15632215Shelbigchar *efmt; /* strftime format string for printeaster() */ 15731744Shelbig 15831744Shelbigchar *center(char *s, char *t, int w); 15931744Shelbigvoid mkmonth(int year, int month, int jd_flag, struct monthlines * monthl); 16031744Shelbigvoid mkmonthb(int year, int month, int jd_flag, struct monthlines * monthl); 16131744Shelbigvoid mkweekdays(struct weekdays * wds); 16231744Shelbigvoid printcc(void); 16331744Shelbigvoid printeaster(int year, int julian, int orthodox); 16431744Shelbigvoid printmonth(int year, int month, int jd_flag); 16531744Shelbigvoid printmonthb(int year, int month, int jd_flag); 16631744Shelbigvoid printyear(int year, int jd_flag); 16731744Shelbigvoid printyearb(int year, int jd_flag); 16832282Shelbigint firstday(int y, int m); 16931744Shelbigdate *sdate(int ndays, struct date * d); 17031744Shelbigdate *sdateb(int ndays, struct date * d); 17131744Shelbigint sndays(struct date * d); 17231744Shelbigint sndaysb(struct date * d); 17331744Shelbigvoid usage(void); 17431744Shelbigint weekdayb(int nd); 17531744Shelbig 17631744Shelbigint 17731744Shelbigmain(int argc, char *argv[]) 17831744Shelbig{ 17931744Shelbig struct djswitch *p, *q; /* to search user defined switch date */ 18031744Shelbig date never = {10000, 1, 1}; /* outside valid range of dates */ 18131744Shelbig date ukswitch = {1752, 9, 2};/* switch date for Great Britain */ 18231744Shelbig int ch; /* holds the option character */ 18331744Shelbig int m = 0; /* month */ 18431744Shelbig int y = 0; /* year */ 18531744Shelbig int flag_backward = 0; /* user called cal--backward compat. */ 18631744Shelbig int flag_hole_year = 0; /* user wants the whole year */ 18731744Shelbig int flag_julian_cal = 0; /* user wants Julian Calendar */ 18831744Shelbig int flag_julian_day = 0; /* user wants the Julian day 18931744Shelbig * numbers */ 19031744Shelbig int flag_orthodox = 0; /* use wants Orthodox easter */ 19131744Shelbig int flag_easter = 0; /* use wants easter date */ 19231744Shelbig char *cp; /* character pointer */ 19332215Shelbig char *locale; /* locale to get country code */ 19431744Shelbig 19532215Shelbig /* 19632215Shelbig * Use locale to determine the country code, 19732215Shelbig * and use the country code to determine the default 19832215Shelbig * switchdate and date format from the switches table. 19932215Shelbig */ 20032215Shelbig if ((locale = setlocale(LC_TIME, "")) == NULL) 20132215Shelbig warn("setlocale"); 20232215Shelbig if (locale == NULL || locale == "C") 20332215Shelbig locale = "_US"; 20432215Shelbig q = switches + sizeof(switches) / sizeof(struct djswitch); 20532215Shelbig for (p = switches; p != q; p++) 20632215Shelbig if ((cp = strstr(locale, p->cc)) != NULL && *(cp - 1) == '_') 20732215Shelbig break; 20832215Shelbig if (p == q) { 20932215Shelbig nswitch = ndaysj(&dftswitch->dt); 21032215Shelbig efmt = dftswitch->efmt; 21132215Shelbig } else { 21232215Shelbig nswitch = ndaysj(&p->dt); 21332215Shelbig efmt = p->efmt; 21432215Shelbig dftswitch = p; 21532215Shelbig } 21631744Shelbig 21732215Shelbig 21831744Shelbig /* 21931744Shelbig * Get the filename portion of argv[0] and set flag_backward if 22031744Shelbig * this program is called "cal". 22131744Shelbig */ 22231744Shelbig for (cp = argv[0]; *cp; cp++) 22331744Shelbig ; 22431744Shelbig while (cp >= argv[0] && *cp != '/') 22531744Shelbig cp--; 22631744Shelbig if (strcmp("cal", ++cp) == 0) 22731744Shelbig flag_backward = 1; 22831744Shelbig 22931744Shelbig /* Set the switch date to United Kingdom if backwards compatible */ 23031744Shelbig if (flag_backward) 23131744Shelbig nswitchb = ndaysj(&ukswitch); 23231744Shelbig 23331744Shelbig while ((ch = getopt(argc, argv, "Jejops:wy")) != -1) 23431744Shelbig switch (ch) { 23531744Shelbig case 'J': 23631744Shelbig if (flag_backward) 23731744Shelbig usage(); 23831744Shelbig nswitch = ndaysj(&never); 23931744Shelbig flag_julian_cal = 1; 24031744Shelbig break; 24131744Shelbig case 'e': 24231744Shelbig if (flag_backward) 24331744Shelbig usage(); 24431744Shelbig flag_easter = 1; 24531744Shelbig break; 24631744Shelbig case 'j': 24731744Shelbig flag_julian_day = 1; 24831744Shelbig break; 24931744Shelbig case 'o': 25031744Shelbig if (flag_backward) 25131744Shelbig usage(); 25231744Shelbig flag_orthodox = 1; 25331744Shelbig flag_easter = 1; 25431744Shelbig break; 25531744Shelbig case 'p': 25631744Shelbig if (flag_backward) 25731744Shelbig usage(); 25831744Shelbig printcc(); 25931744Shelbig return (0); 26031744Shelbig break; 26131744Shelbig case 's': 26231744Shelbig if (flag_backward) 26331744Shelbig usage(); 26431744Shelbig q = switches + 26531744Shelbig sizeof(switches) / sizeof(struct djswitch); 26631744Shelbig for (p = switches; 26731744Shelbig p != q && strcmp(p->cc, optarg) != 0; p++) 26831744Shelbig ; 26931744Shelbig if (p == q) 27031744Shelbig errx(EX_USAGE, 27131744Shelbig "%s: invalid country code", optarg); 27231744Shelbig nswitch = ndaysj(&(p->dt)); 27331744Shelbig break; 27431744Shelbig case 'w': 27531744Shelbig if (flag_backward) 27631744Shelbig usage(); 27731744Shelbig flag_weeks = 1; 27831744Shelbig break; 27931744Shelbig case 'y': 28031744Shelbig flag_hole_year = 1; 28131744Shelbig break; 28231744Shelbig default: 28331744Shelbig usage(); 28431744Shelbig } 28531744Shelbig 28631744Shelbig argc -= optind; 28731744Shelbig argv += optind; 28831744Shelbig 28931744Shelbig if (argc == 0) { 29031744Shelbig time_t t; 29131744Shelbig struct tm *tm; 29231744Shelbig 29331744Shelbig t = time(NULL); 29431744Shelbig tm = localtime(&t); 29531744Shelbig y = tm->tm_year + 1900; 29631744Shelbig m = tm->tm_mon + 1; 29731744Shelbig } 29831744Shelbig 29931744Shelbig switch (argc) { 30031744Shelbig case 2: 30131744Shelbig if (flag_easter) 30231744Shelbig usage(); 30331744Shelbig m = atoi(*argv++); 30431744Shelbig if (m < 1 || m > 12) 30531744Shelbig errx(EX_USAGE, "month %d not in range 1..12", m); 30631744Shelbig /* FALLTHROUGH */ 30731744Shelbig case 1: 30831744Shelbig y = atoi(*argv++); 30931744Shelbig if (y < 1 || y > 9999) 31031744Shelbig errx(EX_USAGE, "year %d not in range 1..9999", y); 31131744Shelbig break; 31231744Shelbig case 0: 31331744Shelbig break; 31431744Shelbig default: 31531744Shelbig usage(); 31631744Shelbig } 31731744Shelbig 31831744Shelbig if (flag_easter) 31931744Shelbig printeaster(y, flag_julian_cal, flag_orthodox); 32031744Shelbig else if (argc == 1 || flag_hole_year) 32131744Shelbig if (flag_backward) 32231744Shelbig printyearb(y, flag_julian_day); 32331744Shelbig else 32431744Shelbig printyear(y, flag_julian_day); 32531744Shelbig else 32631744Shelbig if (flag_backward) 32731744Shelbig printmonthb(y, m, flag_julian_day); 32831744Shelbig else 32931744Shelbig printmonth(y, m, flag_julian_day); 33031744Shelbig 33131744Shelbig return (0); 33231744Shelbig} 33331744Shelbig 33431744Shelbigvoid 33531744Shelbigusage(void) 33631744Shelbig{ 33731744Shelbig 33831744Shelbig fprintf(stderr, 33931744Shelbig "usage: cal [-jy] [month[year]]\n" 34031744Shelbig "usage: ncal [-Jjpwy] [-s country_code] [[month] year]\n" 34131744Shelbig "usage: ncal [-Jeo] [year]\n"); 34231744Shelbig exit(EX_USAGE); 34331744Shelbig} 34431744Shelbig 34531744Shelbig/* print the assumed switches for all countries */ 34631744Shelbigvoid 34731744Shelbigprintcc(void) 34831744Shelbig{ 34931744Shelbig struct djswitch *p; 35031744Shelbig int n; /* number of lines to print */ 35131744Shelbig int m; /* offset from left to right table entry on the same line */ 35231744Shelbig 35332215Shelbig#define FSTR "%c%s %-15s%4d-%02d-%02d" 35432215Shelbig#define DFLT(p) ((p) == dftswitch ? '*' : ' ') 35532215Shelbig#define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d 35631744Shelbig 35731744Shelbig n = sizeof(switches) / sizeof(struct djswitch); 35831744Shelbig m = (n + 1) / 2; 35931744Shelbig n /= 2; 36032215Shelbig for (p = switches; p != switches + n; p++) 36132215Shelbig printf(FSTR" "FSTR"\n", FSTRARG(p), FSTRARG(p+m)); 36231744Shelbig if (m != n) 36332215Shelbig printf(FSTR"\n", FSTRARG(p)); 36431744Shelbig} 36531744Shelbig 36631744Shelbig/* print the date of easter sunday */ 36731744Shelbigvoid 36831744Shelbigprinteaster(int y, int julian, int orthodox) 36931744Shelbig{ 37032215Shelbig date dt; 37132215Shelbig struct tm tm; 37232215Shelbig char buf[80]; 37331744Shelbig 37431744Shelbig /* force orthodox easter for years before 1583 */ 37531744Shelbig if (y < 1583) 37631744Shelbig orthodox = 1; 37731744Shelbig 37831744Shelbig if (orthodox) 37931744Shelbig if (julian) 38031744Shelbig easteroj(y, &dt); 38131744Shelbig else 38231744Shelbig easterog(y, &dt); 38331744Shelbig else 38431744Shelbig easterg(y, &dt); 38532215Shelbig 38632215Shelbig memset(&tm, 0, sizeof(tm)); 38732215Shelbig tm.tm_year = dt.y - 1900; 38832215Shelbig tm.tm_mon = dt.m - 1; 38932215Shelbig tm.tm_mday = dt.d; 39032215Shelbig strftime(buf, sizeof(buf), efmt, &tm); 39132215Shelbig printf("%s\n", buf); 39231744Shelbig} 39331744Shelbig 39431744Shelbigvoid 39531744Shelbigprintmonth(int y, int m, int jd_flag) 39631744Shelbig{ 39731744Shelbig struct monthlines month; 39831744Shelbig struct weekdays wds; 39931744Shelbig int i; 40031744Shelbig 40131744Shelbig mkmonth(y, m - 1, jd_flag, &month); 40231744Shelbig mkweekdays(&wds); 40331744Shelbig printf(" %s %d\n", month.name, y); 40431744Shelbig for (i = 0; i != 7; i++) 40531744Shelbig printf("%.2s%s\n", wds.names[i], month.lines[i]); 40631744Shelbig if (flag_weeks) 40731744Shelbig printf(" %s\n", month.weeks); 40831744Shelbig} 40931744Shelbig 41031744Shelbigvoid 41131744Shelbigprintmonthb(int y, int m, int jd_flag) 41231744Shelbig{ 41331744Shelbig struct monthlines month; 41431744Shelbig struct weekdays wds; 41531744Shelbig char s[MAX_WIDTH], t[MAX_WIDTH]; 41631744Shelbig int i; 41731744Shelbig int mw; 41831744Shelbig 41931744Shelbig mkmonthb(y, m - 1, jd_flag, &month); 42031744Shelbig mkweekdays(&wds); 42131744Shelbig 42231744Shelbig mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 42331744Shelbig 42431744Shelbig sprintf(s, "%s %d", month.name, y); 42531744Shelbig printf("%s\n", center(t, s, mw)); 42631744Shelbig 42731744Shelbig if (jd_flag) 42831744Shelbig printf(" %s %s %s %s %s %s %.2s\n", wds.names[6], wds.names[0], 42931744Shelbig wds.names[1], wds.names[2], wds.names[3], 43031744Shelbig wds.names[4], wds.names[5]); 43131744Shelbig else 43231744Shelbig printf("%s%s%s%s%s%s%.2s\n", wds.names[6], wds.names[0], 43331744Shelbig wds.names[1], wds.names[2], wds.names[3], 43431744Shelbig wds.names[4], wds.names[5]); 43531744Shelbig 43631744Shelbig for (i = 0; i != 6; i++) 43731744Shelbig printf("%s\n", month.lines[i]+1); 43831744Shelbig} 43931744Shelbig 44031744Shelbigvoid 44131744Shelbigprintyear(int y, int jd_flag) 44231744Shelbig{ 44331744Shelbig struct monthlines year[12]; 44431744Shelbig struct weekdays wds; 44531744Shelbig char s[80], t[80]; 44631744Shelbig int i, j; 44731744Shelbig int mpl; 44831744Shelbig int mw; 44931744Shelbig 45031744Shelbig for (i = 0; i != 12; i++) 45131744Shelbig mkmonth(y, i, jd_flag, year + i); 45231744Shelbig mkweekdays(&wds); 45331744Shelbig mpl = jd_flag ? 3 : 4; 45431744Shelbig mw = jd_flag ? MONTH_WIDTH_J : MONTH_WIDTH; 45531744Shelbig 45631744Shelbig sprintf(s, "%d", y); 45731744Shelbig printf("%s\n", center(t, s, mpl * mw)); 45831744Shelbig 45931744Shelbig for (j = 0; j != 12; j += mpl) { 46031744Shelbig printf(" %-*s%-*s", 46131744Shelbig mw, year[j].name, 46231744Shelbig mw, year[j + 1].name); 46331744Shelbig if (mpl == 3) 46431744Shelbig printf("%s\n", year[j + 2].name); 46531744Shelbig else 46631744Shelbig printf("%-*s%s\n", 46731744Shelbig mw, year[j + 2].name, 46831744Shelbig year[j + 3].name); 46931744Shelbig for (i = 0; i != 7; i++) { 47031744Shelbig printf("%.2s%-*s%-*s", 47131744Shelbig wds.names[i], 47231744Shelbig mw, year[j].lines[i], 47331744Shelbig mw, year[j + 1].lines[i]); 47431744Shelbig if (mpl == 3) 47531744Shelbig printf("%s\n", year[j + 2].lines[i]); 47631744Shelbig else 47731744Shelbig printf("%-*s%s\n", 47831744Shelbig mw, year[j + 2].lines[i], 47931744Shelbig year[j + 3].lines[i]); 48031744Shelbig } 48131744Shelbig if (flag_weeks) 48231744Shelbig if (mpl == 3) 48331744Shelbig printf(" %-*s%-*s%-s\n", 48431744Shelbig mw, year[j].weeks, 48531744Shelbig mw, year[j + 1].weeks, 48631744Shelbig year[j + 2].weeks); 48731744Shelbig else 48831744Shelbig printf(" %-*s%-*s%-*s%-s\n", 48931744Shelbig mw, year[j].weeks, 49031744Shelbig mw, year[j + 1].weeks, 49131744Shelbig mw, year[j + 2].weeks, 49231744Shelbig year[j + 3].weeks); 49331744Shelbig } 49431744Shelbig} 49531744Shelbig 49631744Shelbigvoid 49731744Shelbigprintyearb(int y, int jd_flag) 49831744Shelbig{ 49931744Shelbig struct monthlines year[12]; 50031744Shelbig struct weekdays wds; 50131744Shelbig char s[80], t[80]; 50231744Shelbig int i, j; 50331744Shelbig int mpl; 50431744Shelbig int mw; 50531744Shelbig 50631744Shelbig for (i = 0; i != 12; i++) 50731744Shelbig mkmonthb(y, i, jd_flag, year + i); 50831744Shelbig mkweekdays(&wds); 50931744Shelbig mpl = jd_flag ? 2 : 3; 51031744Shelbig mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 51131744Shelbig 51231744Shelbig sprintf(s, "%d", y); 51331744Shelbig printf("%s\n\n", center(t, s, mw * mpl + mpl)); 51431744Shelbig 51531744Shelbig for (j = 0; j != 12; j += mpl) { 51631744Shelbig printf("%-*s ", mw, center(s, year[j].name, mw)); 51731744Shelbig if (mpl == 2) 51831744Shelbig printf("%s\n", center(s, year[j + 1].name, mw)); 51931744Shelbig else 52031744Shelbig printf("%-*s %s\n", mw, 52131744Shelbig center(s, year[j + 1].name, mw), 52231744Shelbig center(t, year[j + 2].name, mw)); 52331744Shelbig 52431744Shelbig if (mpl == 2) 52531744Shelbig printf(" %s %s %s %s %s %s %s " 52631744Shelbig " %s %s %s %s %s %s %.2s\n", 52731744Shelbig wds.names[6], wds.names[0], wds.names[1], 52831744Shelbig wds.names[2], wds.names[3], wds.names[4], 52931744Shelbig wds.names[5], 53031744Shelbig wds.names[6], wds.names[0], wds.names[1], 53131744Shelbig wds.names[2], wds.names[3], wds.names[4], 53231744Shelbig wds.names[5]); 53331744Shelbig else 53431744Shelbig printf("%s%s%s%s%s%s%s " 53531744Shelbig "%s%s%s%s%s%s%s " 53631744Shelbig "%s%s%s%s%s%s%.2s\n", 53731744Shelbig wds.names[6], wds.names[0], wds.names[1], 53831744Shelbig wds.names[2], wds.names[3], wds.names[4], 53931744Shelbig wds.names[5], 54031744Shelbig wds.names[6], wds.names[0], wds.names[1], 54131744Shelbig wds.names[2], wds.names[3], wds.names[4], 54231744Shelbig wds.names[5], 54331744Shelbig wds.names[6], wds.names[0], wds.names[1], 54431744Shelbig wds.names[2], wds.names[3], wds.names[4], 54531744Shelbig wds.names[5]); 54631744Shelbig for (i = 0; i != 6; i++) { 54731744Shelbig if (mpl == 2) 54831744Shelbig printf("%-*s %s\n", 54931744Shelbig mw, year[j].lines[i]+1, 55031744Shelbig year[j + 1].lines[i]+1); 55131744Shelbig else 55231744Shelbig printf("%-*s %-*s %s\n", 55331744Shelbig mw, year[j].lines[i]+1, 55431744Shelbig mw, year[j + 1].lines[i]+1, 55531744Shelbig year[j + 2].lines[i]+1); 55631744Shelbig 55731744Shelbig } 55831744Shelbig } 55931744Shelbig} 56031744Shelbig 56131744Shelbigvoid 56231744Shelbigmkmonth(int y, int m, int jd_flag, struct monthlines *mlines) 56331744Shelbig{ 56431744Shelbig 56531744Shelbig struct tm tm; /* for strftime printing local names of 56631744Shelbig * months */ 56731744Shelbig date dt; /* handy date */ 56831744Shelbig int dw; /* width of numbers */ 56931744Shelbig int first; /* first day of month */ 57031744Shelbig int firstm; /* first day of first week of month */ 57131744Shelbig int i, j, k; /* just indices */ 57231744Shelbig int last; /* the first day of next month */ 57331744Shelbig int jan1 = 0; /* the first day of this year */ 57431744Shelbig char *ds; /* pointer to day strings (daystr or 57531744Shelbig * jdaystr) */ 57631744Shelbig 57731744Shelbig /* Set name of month. */ 57831744Shelbig memset(&tm, 0, sizeof(tm)); 57931744Shelbig tm.tm_mon = m; 58031744Shelbig strftime(mlines->name, sizeof(mlines->name), "%B", &tm); 58131744Shelbig 58231744Shelbig /* 58331744Shelbig * Set first and last to the day number of the first day of this 58431744Shelbig * month and the first day of next month respectively. Set jan1 to 58532282Shelbig * the day number of the first day of this year. 58631744Shelbig */ 58732282Shelbig first = firstday(y, m + 1); 58832282Shelbig if (m == 11) 58932282Shelbig last = firstday(y + 1, 1); 59032282Shelbig else 59132282Shelbig last = firstday(y, m + 2); 59231744Shelbig 59332282Shelbig if (jd_flag) 59432282Shelbig jan1 = firstday(m, 1); 59531744Shelbig 59631744Shelbig /* 59731744Shelbig * Set firstm to the day number of monday of the first week of 59831744Shelbig * this month. (This might be in the last month) 59931744Shelbig */ 60031744Shelbig firstm = first - weekday(first); 60131744Shelbig 60231744Shelbig /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 60331744Shelbig if (jd_flag) { 60431744Shelbig ds = jdaystr; 60531744Shelbig dw = 4; 60631744Shelbig } else { 60731744Shelbig ds = daystr; 60831744Shelbig dw = 3; 60931744Shelbig } 61031744Shelbig 61131744Shelbig /* 61231744Shelbig * Fill the lines with day of month or day of year (julian day) 61331744Shelbig * line index: i, each line is one weekday. column index: j, each 61431744Shelbig * column is one day number. print column index: k. 61531744Shelbig */ 61631744Shelbig for (i = 0; i != 7; i++) { 61731744Shelbig for (j = firstm + i, k = 0; j < last; j += 7, k += dw) 61831744Shelbig if (j >= first) { 61931744Shelbig if (jd_flag) 62031744Shelbig dt.d = j - jan1 + 1; 62131744Shelbig else 62231744Shelbig sdate(j, &dt); 62331744Shelbig memcpy(mlines->lines[i] + k, 62431744Shelbig ds + dt.d * dw, dw); 62531744Shelbig } else 62631744Shelbig memcpy(mlines->lines[i] + k, " ", dw); 62731744Shelbig mlines->lines[i][k] = '\0'; 62831744Shelbig 62931744Shelbig } 63031744Shelbig 63131744Shelbig /* fill the weeknumbers */ 63231744Shelbig if (flag_weeks) { 63331744Shelbig for (j = firstm, k = 0; j < last; k += dw, j += 7) 63431744Shelbig if (j <= nswitch) 63531744Shelbig memset(mlines->weeks + k, ' ', dw); 63631744Shelbig else 63731744Shelbig memcpy(mlines->weeks + k, 63831744Shelbig ds + week(j, &i)*dw, dw); 63931744Shelbig mlines->weeks[k] = '\0'; 64031744Shelbig } 64131744Shelbig} 64231744Shelbig 64331744Shelbigvoid 64431744Shelbigmkmonthb(int y, int m, int jd_flag, struct monthlines *mlines) 64531744Shelbig{ 64631744Shelbig 64731744Shelbig struct tm tm; /* for strftime printing local names of 64831744Shelbig * months */ 64931744Shelbig date dt; /* handy date */ 65031744Shelbig int dw; /* width of numbers */ 65131744Shelbig int first; /* first day of month */ 65231744Shelbig int firsts; /* sunday of first week of month */ 65331744Shelbig int i, j, k; /* just indices */ 65431744Shelbig int jan1 = 0; /* the first day of this year */ 65531744Shelbig int last; /* the first day of next month */ 65631744Shelbig char *ds; /* pointer to day strings (daystr or 65731744Shelbig * jdaystr) */ 65831744Shelbig 65931744Shelbig /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 66031744Shelbig if (jd_flag) { 66131744Shelbig ds = jdaystr; 66231744Shelbig dw = 4; 66331744Shelbig } else { 66431744Shelbig ds = daystr; 66531744Shelbig dw = 3; 66631744Shelbig } 66731744Shelbig 66831744Shelbig /* Set name of month centered */ 66931744Shelbig memset(&tm, 0, sizeof(tm)); 67031744Shelbig tm.tm_mon = m; 67131744Shelbig strftime(mlines->name, sizeof(mlines->name), "%B", &tm); 67231744Shelbig 67331744Shelbig /* 67431744Shelbig * Set first and last to the day number of the first day of this 67531744Shelbig * month and the first day of next month respectively. Set jan1 to 67631744Shelbig * the day number of Jan 1st of this year. 67731744Shelbig */ 67831744Shelbig dt.y = y; 67931744Shelbig dt.m = m + 1; 68031744Shelbig dt.d = 1; 68131744Shelbig first = sndaysb(&dt); 68231744Shelbig if (m == 11) { 68331744Shelbig dt.y = y + 1; 68431744Shelbig dt.m = 1; 68531744Shelbig dt.d = 1; 68631744Shelbig } else { 68731744Shelbig dt.y = y; 68831744Shelbig dt.m = m + 2; 68931744Shelbig dt.d = 1; 69031744Shelbig } 69131744Shelbig last = sndaysb(&dt); 69231744Shelbig 69331744Shelbig if (jd_flag) { 69431744Shelbig dt.y = y; 69531744Shelbig dt.m = 1; 69631744Shelbig dt.d = 1; 69731744Shelbig jan1 = sndaysb(&dt); 69831744Shelbig } 69931744Shelbig 70031744Shelbig /* 70131744Shelbig * Set firsts to the day number of sunday of the first week of 70231744Shelbig * this month. (This might be in the last month) 70331744Shelbig */ 70431744Shelbig firsts = first - (weekday(first)+1) % 7; 70531744Shelbig 70631744Shelbig /* 70731744Shelbig * Fill the lines with day of month or day of year (Julian day) 70831744Shelbig * line index: i, each line is one week. column index: j, each 70931744Shelbig * column is one day number. print column index: k. 71031744Shelbig */ 71131744Shelbig for (i = 0; i != 6; i++) { 71231744Shelbig for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7; 71331744Shelbig j++, k += dw) 71431744Shelbig if (j >= first) { 71531744Shelbig if (jd_flag) 71631744Shelbig dt.d = j - jan1 + 1; 71731744Shelbig else 71831744Shelbig sdateb(j, &dt); 71931744Shelbig memcpy(mlines->lines[i] + k, 72031744Shelbig ds + dt.d * dw, dw); 72131744Shelbig } else 72231744Shelbig memcpy(mlines->lines[i] + k, " ", dw); 72331744Shelbig if (k == 0) 72431744Shelbig mlines->lines[i][1] = '\0'; 72531744Shelbig else 72631744Shelbig mlines->lines[i][k] = '\0'; 72731744Shelbig } 72831744Shelbig} 72931744Shelbig 73031744Shelbig/* Put the local names of weekdays into the wds */ 73132139Shelbigvoid 73232139Shelbigmkweekdays(struct weekdays *wds) 73331744Shelbig{ 73431744Shelbig int i; 73531744Shelbig struct tm tm; 73631744Shelbig 73731744Shelbig memset(&tm, 0, sizeof(tm)); 73831744Shelbig 73931744Shelbig for (i = 0; i != 7; i++) { 74031744Shelbig tm.tm_wday = (i+1) % 7; 74131744Shelbig strftime(wds->names[i], 4, "%a", &tm); 74232139Shelbig wds->names[i][2] = ' '; 74331744Shelbig } 74431744Shelbig} 74531744Shelbig 74631744Shelbig/* 74732282Shelbig * Compute the day number of the first day in month. 74832282Shelbig * The day y-m-1 might be dropped due to Gregorian Reformation, 74932282Shelbig * so the answer is the smallest day number nd with sdate(nd) in 75032282Shelbig * the month m. 75132282Shelbig */ 75232282Shelbigint 75332282Shelbigfirstday(int y, int m) 75432282Shelbig{ 75532282Shelbig date dt; 75632282Shelbig int nd; 75732282Shelbig 75832282Shelbig dt.y = y; 75932282Shelbig dt.m = m; 76032282Shelbig dt.d = 1; 76132282Shelbig for (nd = sndays(&dt); sdate(nd, &dt)->m != m; nd++) 76232282Shelbig ; 76332282Shelbig return (nd); 76432282Shelbig} 76532282Shelbig 76632282Shelbig/* 76731744Shelbig * Compute the number of days from date, obey the local switch from 76831744Shelbig * Julian to Gregorian if specified by the user. 76931744Shelbig */ 77031744Shelbigint 77131744Shelbigsndays(struct date *d) 77231744Shelbig{ 77331744Shelbig 77431744Shelbig if (nswitch != 0) 77531744Shelbig if (nswitch < ndaysj(d)) 77631744Shelbig return (ndaysg(d)); 77731744Shelbig else 77831744Shelbig return (ndaysj(d)); 77931744Shelbig else 78031744Shelbig return ndaysg(d); 78131744Shelbig} 78231744Shelbig 78331744Shelbig/* 78431744Shelbig * Compute the number of days from date, obey the switch from 78531744Shelbig * Julian to Gregorian as used by UK and her colonies. 78631744Shelbig */ 78731744Shelbigint 78831744Shelbigsndaysb(struct date *d) 78931744Shelbig{ 79031744Shelbig 79131744Shelbig if (nswitchb < ndaysj(d)) 79231744Shelbig return (ndaysg(d)); 79331744Shelbig else 79431744Shelbig return (ndaysj(d)); 79531744Shelbig} 79631744Shelbig 79731744Shelbig/* Inverse of sndays */ 79831744Shelbigstruct date * 79931744Shelbigsdate(int nd, struct date *d) 80031744Shelbig{ 80131744Shelbig 80231744Shelbig if (nswitch < nd) 80331744Shelbig return (gdate(nd, d)); 80431744Shelbig else 80531744Shelbig return (jdate(nd, d)); 80631744Shelbig} 80731744Shelbig 80831744Shelbig/* Inverse of sndaysb */ 80931744Shelbigstruct date * 81031744Shelbigsdateb(int nd, struct date *d) 81131744Shelbig{ 81231744Shelbig 81331744Shelbig if (nswitchb < nd) 81431744Shelbig return (gdate(nd, d)); 81531744Shelbig else 81631744Shelbig return (jdate(nd, d)); 81731744Shelbig} 81831744Shelbig 81931744Shelbig/* Center string t in string s of length w by putting enough leading blanks */ 82031744Shelbigchar * 82131744Shelbigcenter(char *s, char *t, int w) 82231744Shelbig{ 82331744Shelbig char blanks[80]; 82431744Shelbig 82531744Shelbig memset(blanks, ' ', sizeof(blanks)); 82631744Shelbig sprintf(s, "%.*s%s", (int)(w - strlen(t)) / 2, blanks, t); 82731744Shelbig return (s); 82831744Shelbig} 829