ncal.c revision 138036
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 */ 2632310Scharnier 2732310Scharnier#ifndef lint 2832310Scharnierstatic const char rcsid[] = 2950477Speter "$FreeBSD: head/usr.bin/ncal/ncal.c 138036 2004-11-23 22:57:17Z wollman $"; 3032310Scharnier#endif /* not lint */ 3132310Scharnier 3231744Shelbig#include <calendar.h> 3374612Sache#include <ctype.h> 3431744Shelbig#include <err.h> 3574573Sache#include <langinfo.h> 3631744Shelbig#include <locale.h> 3731744Shelbig#include <stdio.h> 3831744Shelbig#include <stdlib.h> 3931744Shelbig#include <string.h> 4031744Shelbig#include <sysexits.h> 4131744Shelbig#include <time.h> 4231744Shelbig#include <unistd.h> 4331744Shelbig 4431744Shelbig/* Width of one month with backward compatibility */ 4531744Shelbig#define MONTH_WIDTH_B_J 27 4631744Shelbig#define MONTH_WIDTH_B 20 4731744Shelbig 4831744Shelbig#define MONTH_WIDTH_J 24 4931744Shelbig#define MONTH_WIDTH 18 5031744Shelbig 5131744Shelbig#define MAX_WIDTH 28 5231744Shelbig 5331744Shelbigtypedef struct date date; 5431744Shelbig 5531744Shelbigstruct monthlines { 5631744Shelbig char name[MAX_WIDTH + 1]; 5731744Shelbig char lines[7][MAX_WIDTH + 1]; 5831744Shelbig char weeks[MAX_WIDTH + 1]; 5931744Shelbig}; 6031744Shelbig 6131744Shelbigstruct weekdays { 6231744Shelbig char names[7][4]; 6331744Shelbig}; 6431744Shelbig 6531744Shelbig/* The switches from Julian to Gregorian in some countries */ 6631744Shelbigstatic struct djswitch { 6795641Smarkm const char *cc; /* Country code according to ISO 3166 */ 6895641Smarkm const char *nm; /* Name of country */ 6931744Shelbig date dt; /* Last day of Julian calendar */ 7031744Shelbig} switches[] = { 7153963Sache {"AL", "Albania", {1912, 11, 30}}, 7253963Sache {"AT", "Austria", {1583, 10, 5}}, 7353963Sache {"AU", "Australia", {1752, 9, 2}}, 7453963Sache {"BE", "Belgium", {1582, 12, 14}}, 7553963Sache {"BG", "Bulgaria", {1916, 3, 18}}, 7653963Sache {"CA", "Canada", {1752, 9, 2}}, 7753963Sache {"CH", "Switzerland", {1655, 2, 28}}, 7853963Sache {"CN", "China", {1911, 12, 18}}, 7953963Sache {"CZ", "Czech Republic",{1584, 1, 6}}, 8053963Sache {"DE", "Germany", {1700, 2, 18}}, 8153963Sache {"DK", "Denmark", {1700, 2, 18}}, 8253963Sache {"ES", "Spain", {1582, 10, 4}}, 8353963Sache {"FI", "Finland", {1753, 2, 17}}, 8453963Sache {"FR", "France", {1582, 12, 9}}, 8553963Sache {"GB", "United Kingdom",{1752, 9, 2}}, 8653963Sache {"GR", "Greece", {1924, 3, 9}}, 8753963Sache {"HU", "Hungary", {1587, 10, 21}}, 8853963Sache {"IS", "Iceland", {1700, 11, 16}}, 8953963Sache {"IT", "Italy", {1582, 10, 4}}, 9053963Sache {"JP", "Japan", {1918, 12, 18}}, 9153963Sache {"LI", "Lithuania", {1918, 2, 1}}, 9253963Sache {"LN", "Latin", {9999, 05, 31}}, 9353963Sache {"LU", "Luxembourg", {1582, 12, 14}}, 9453963Sache {"LV", "Latvia", {1918, 2, 1}}, 9553963Sache {"NL", "Netherlands", {1582, 12, 14}}, 9653963Sache {"NO", "Norway", {1700, 2, 18}}, 9753963Sache {"PL", "Poland", {1582, 10, 4}}, 9853963Sache {"PT", "Portugal", {1582, 10, 4}}, 9953963Sache {"RO", "Romania", {1919, 3, 31}}, 10053963Sache {"RU", "Russia", {1918, 1, 31}}, 10153963Sache {"SI", "Slovenia", {1919, 3, 4}}, 10253963Sache {"SW", "Sweden", {1753, 2, 17}}, 10353963Sache {"TR", "Turkey", {1926, 12, 18}}, 10453963Sache {"US", "United States", {1752, 9, 2}}, 10553963Sache {"YU", "Yugoslavia", {1919, 3, 4}} 10631744Shelbig}; 10731744Shelbig 10832215Shelbigstruct djswitch *dftswitch = 10932215Shelbig switches + sizeof(switches) / sizeof(struct djswitch) - 2; 11032215Shelbig /* default switch (should be "US") */ 11132215Shelbig 11231744Shelbig/* Table used to print day of month and week numbers */ 11331744Shelbigchar daystr[] = " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15" 11431744Shelbig " 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31" 11531744Shelbig " 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47" 11631744Shelbig " 48 49 50 51 52 53"; 11731744Shelbig 11831744Shelbig/* Table used to print day of year and week numbers */ 11931744Shelbigchar jdaystr[] = " 1 2 3 4 5 6 7 8 9" 12031744Shelbig " 10 11 12 13 14 15 16 17 18 19" 12131744Shelbig " 20 21 22 23 24 25 26 27 28 29" 12231744Shelbig " 30 31 32 33 34 35 36 37 38 39" 12331744Shelbig " 40 41 42 43 44 45 46 47 48 49" 12431744Shelbig " 50 51 52 53 54 55 56 57 58 59" 12531744Shelbig " 60 61 62 63 64 65 66 67 68 69" 12631744Shelbig " 70 71 72 73 74 75 76 77 78 79" 12731744Shelbig " 80 81 82 83 84 85 86 87 88 89" 12831744Shelbig " 90 91 92 93 94 95 96 97 98 99" 12931744Shelbig " 100 101 102 103 104 105 106 107 108 109" 13031744Shelbig " 110 111 112 113 114 115 116 117 118 119" 13131744Shelbig " 120 121 122 123 124 125 126 127 128 129" 13231744Shelbig " 130 131 132 133 134 135 136 137 138 139" 13331744Shelbig " 140 141 142 143 144 145 146 147 148 149" 13431744Shelbig " 150 151 152 153 154 155 156 157 158 159" 13531744Shelbig " 160 161 162 163 164 165 166 167 168 169" 13631744Shelbig " 170 171 172 173 174 175 176 177 178 179" 13731744Shelbig " 180 181 182 183 184 185 186 187 188 189" 13831744Shelbig " 190 191 192 193 194 195 196 197 198 199" 13931744Shelbig " 200 201 202 203 204 205 206 207 208 209" 14031744Shelbig " 210 211 212 213 214 215 216 217 218 219" 14131744Shelbig " 220 221 222 223 224 225 226 227 228 229" 14231744Shelbig " 230 231 232 233 234 235 236 237 238 239" 14331744Shelbig " 240 241 242 243 244 245 246 247 248 249" 14431744Shelbig " 250 251 252 253 254 255 256 257 258 259" 14531744Shelbig " 260 261 262 263 264 265 266 267 268 269" 14631744Shelbig " 270 271 272 273 274 275 276 277 278 279" 14731744Shelbig " 280 281 282 283 284 285 286 287 288 289" 14831744Shelbig " 290 291 292 293 294 295 296 297 298 299" 14931744Shelbig " 300 301 302 303 304 305 306 307 308 309" 15031744Shelbig " 310 311 312 313 314 315 316 317 318 319" 15131744Shelbig " 320 321 322 323 324 325 326 327 328 329" 15231744Shelbig " 330 331 332 333 334 335 336 337 338 339" 15331744Shelbig " 340 341 342 343 344 345 346 347 348 349" 15431744Shelbig " 350 351 352 353 354 355 356 357 358 359" 15531744Shelbig " 360 361 362 363 364 365 366"; 15631744Shelbig 15732139Shelbigint flag_weeks; /* user wants number of week */ 15831744Shelbigint nswitch; /* user defined switch date */ 15931744Shelbigint nswitchb; /* switch date for backward compatibility */ 16031744Shelbig 16131744Shelbigchar *center(char *s, char *t, int w); 16231744Shelbigvoid mkmonth(int year, int month, int jd_flag, struct monthlines * monthl); 16331744Shelbigvoid mkmonthb(int year, int month, int jd_flag, struct monthlines * monthl); 16431744Shelbigvoid mkweekdays(struct weekdays * wds); 165104369Sroamint parsemonth(const char *s); 16631744Shelbigvoid printcc(void); 16731744Shelbigvoid printeaster(int year, int julian, int orthodox); 16831744Shelbigvoid printmonth(int year, int month, int jd_flag); 16931744Shelbigvoid printmonthb(int year, int month, int jd_flag); 17031744Shelbigvoid printyear(int year, int jd_flag); 17131744Shelbigvoid printyearb(int year, int jd_flag); 17232282Shelbigint firstday(int y, int m); 17331744Shelbigdate *sdate(int ndays, struct date * d); 17431744Shelbigdate *sdateb(int ndays, struct date * d); 17531744Shelbigint sndays(struct date * d); 17631744Shelbigint sndaysb(struct date * d); 17732310Scharnierstatic void usage(void); 17831744Shelbigint weekdayb(int nd); 17931744Shelbig 18031744Shelbigint 18131744Shelbigmain(int argc, char *argv[]) 18231744Shelbig{ 18331744Shelbig struct djswitch *p, *q; /* to search user defined switch date */ 18431744Shelbig date never = {10000, 1, 1}; /* outside valid range of dates */ 18531744Shelbig date ukswitch = {1752, 9, 2};/* switch date for Great Britain */ 18631744Shelbig int ch; /* holds the option character */ 18731744Shelbig int m = 0; /* month */ 18831744Shelbig int y = 0; /* year */ 18931744Shelbig int flag_backward = 0; /* user called cal--backward compat. */ 19031744Shelbig int flag_hole_year = 0; /* user wants the whole year */ 19131744Shelbig int flag_julian_cal = 0; /* user wants Julian Calendar */ 19231744Shelbig int flag_julian_day = 0; /* user wants the Julian day 19331744Shelbig * numbers */ 19431744Shelbig int flag_orthodox = 0; /* use wants Orthodox easter */ 19531744Shelbig int flag_easter = 0; /* use wants easter date */ 19631744Shelbig char *cp; /* character pointer */ 197138036Swollman char *flag_month = NULL; /* requested month as string */ 19895641Smarkm const char *locale; /* locale to get country code */ 19931744Shelbig 20032215Shelbig /* 20132215Shelbig * Use locale to determine the country code, 20232215Shelbig * and use the country code to determine the default 20332215Shelbig * switchdate and date format from the switches table. 20432215Shelbig */ 20574612Sache if (setlocale(LC_ALL, "") == NULL) 20632215Shelbig warn("setlocale"); 20774612Sache locale = setlocale(LC_TIME, NULL); 20878016Sache if (locale == NULL || 20978016Sache strcmp(locale, "C") == 0 || 21078027Sache strcmp(locale, "POSIX") == 0 || 21178027Sache strcmp(locale, "ASCII") == 0 || 21278027Sache strcmp(locale, "US-ASCII") == 0) 21332215Shelbig locale = "_US"; 21432215Shelbig q = switches + sizeof(switches) / sizeof(struct djswitch); 21532215Shelbig for (p = switches; p != q; p++) 21632215Shelbig if ((cp = strstr(locale, p->cc)) != NULL && *(cp - 1) == '_') 21732215Shelbig break; 21832215Shelbig if (p == q) { 21932215Shelbig nswitch = ndaysj(&dftswitch->dt); 22032215Shelbig } else { 22132215Shelbig nswitch = ndaysj(&p->dt); 22232215Shelbig dftswitch = p; 22332215Shelbig } 22431744Shelbig 22532215Shelbig 22631744Shelbig /* 22731744Shelbig * Get the filename portion of argv[0] and set flag_backward if 22831744Shelbig * this program is called "cal". 22931744Shelbig */ 230138036Swollman cp = strrchr(argv[0], '/'); 231138036Swollman cp = (cp == NULL) ? argv[0] : cp + 1; 232138036Swollman if (strcmp("cal", cp) == 0) 23331744Shelbig flag_backward = 1; 23431744Shelbig 23531744Shelbig /* Set the switch date to United Kingdom if backwards compatible */ 23631744Shelbig if (flag_backward) 23731744Shelbig nswitchb = ndaysj(&ukswitch); 23831744Shelbig 239138036Swollman while ((ch = getopt(argc, argv, "Jejm:ops:wy")) != -1) 24031744Shelbig switch (ch) { 24131744Shelbig case 'J': 24231744Shelbig if (flag_backward) 24331744Shelbig usage(); 24431744Shelbig nswitch = ndaysj(&never); 24531744Shelbig flag_julian_cal = 1; 24631744Shelbig break; 24731744Shelbig case 'e': 24831744Shelbig if (flag_backward) 24931744Shelbig usage(); 25031744Shelbig flag_easter = 1; 25131744Shelbig break; 25231744Shelbig case 'j': 25331744Shelbig flag_julian_day = 1; 25431744Shelbig break; 255138036Swollman case 'm': 256138036Swollman flag_month = optarg; 257138036Swollman break; 25831744Shelbig case 'o': 25931744Shelbig if (flag_backward) 26031744Shelbig usage(); 26131744Shelbig flag_orthodox = 1; 26231744Shelbig flag_easter = 1; 26331744Shelbig break; 26431744Shelbig case 'p': 26531744Shelbig if (flag_backward) 26631744Shelbig usage(); 26731744Shelbig printcc(); 26831744Shelbig return (0); 26931744Shelbig break; 27031744Shelbig case 's': 27131744Shelbig if (flag_backward) 27231744Shelbig usage(); 27331744Shelbig q = switches + 27431744Shelbig sizeof(switches) / sizeof(struct djswitch); 27531744Shelbig for (p = switches; 27631744Shelbig p != q && strcmp(p->cc, optarg) != 0; p++) 27731744Shelbig ; 27831744Shelbig if (p == q) 27931744Shelbig errx(EX_USAGE, 28031744Shelbig "%s: invalid country code", optarg); 28131744Shelbig nswitch = ndaysj(&(p->dt)); 28231744Shelbig break; 28331744Shelbig case 'w': 28431744Shelbig if (flag_backward) 28531744Shelbig usage(); 28631744Shelbig flag_weeks = 1; 28731744Shelbig break; 28831744Shelbig case 'y': 28931744Shelbig flag_hole_year = 1; 29031744Shelbig break; 29131744Shelbig default: 29231744Shelbig usage(); 29331744Shelbig } 29431744Shelbig 29531744Shelbig argc -= optind; 29631744Shelbig argv += optind; 29731744Shelbig 29831744Shelbig switch (argc) { 29931744Shelbig case 2: 30031744Shelbig if (flag_easter) 30131744Shelbig usage(); 302138036Swollman flag_month = *argv++; 30331744Shelbig /* FALLTHROUGH */ 30431744Shelbig case 1: 30531744Shelbig y = atoi(*argv++); 30631744Shelbig if (y < 1 || y > 9999) 30731744Shelbig errx(EX_USAGE, "year %d not in range 1..9999", y); 30831744Shelbig break; 30931744Shelbig case 0: 310138036Swollman { 311138036Swollman time_t t; 312138036Swollman struct tm *tm; 313138036Swollman 314138036Swollman t = time(NULL); 315138036Swollman tm = localtime(&t); 316138036Swollman y = tm->tm_year + 1900; 317138036Swollman m = tm->tm_mon + 1; 318138036Swollman } 31931744Shelbig break; 32031744Shelbig default: 32131744Shelbig usage(); 32231744Shelbig } 32331744Shelbig 324138036Swollman if (flag_month != NULL) { 325138036Swollman m = parsemonth(flag_month); 326138036Swollman if (m < 1 || m > 12) 327138036Swollman errx(EX_USAGE, 328138036Swollman "%s is neither a month number (1..12) nor a name", 329138036Swollman flag_month); 330138036Swollman } 331138036Swollman 33231744Shelbig if (flag_easter) 33331744Shelbig printeaster(y, flag_julian_cal, flag_orthodox); 33431744Shelbig else if (argc == 1 || flag_hole_year) 33531744Shelbig if (flag_backward) 33631744Shelbig printyearb(y, flag_julian_day); 33731744Shelbig else 33831744Shelbig printyear(y, flag_julian_day); 33931744Shelbig else 34031744Shelbig if (flag_backward) 34131744Shelbig printmonthb(y, m, flag_julian_day); 34231744Shelbig else 34331744Shelbig printmonth(y, m, flag_julian_day); 34431744Shelbig 34531744Shelbig return (0); 34631744Shelbig} 34731744Shelbig 34832310Scharnierstatic void 34931744Shelbigusage(void) 35031744Shelbig{ 35131744Shelbig 352138036Swollman fputs( 353138036Swollman "usage: cal [-jy] [[month] year]\n" 354138036Swollman " cal [-j] [-m month] [year]\n" 355138036Swollman " ncal [-Jjpwy] [-s country_code] [[month] year]\n" 356138036Swollman " ncal [-Jeo] [year]\n", stderr); 35731744Shelbig exit(EX_USAGE); 35831744Shelbig} 35931744Shelbig 36031744Shelbig/* print the assumed switches for all countries */ 36131744Shelbigvoid 36231744Shelbigprintcc(void) 36331744Shelbig{ 36431744Shelbig struct djswitch *p; 36531744Shelbig int n; /* number of lines to print */ 36631744Shelbig int m; /* offset from left to right table entry on the same line */ 36731744Shelbig 36832215Shelbig#define FSTR "%c%s %-15s%4d-%02d-%02d" 36932215Shelbig#define DFLT(p) ((p) == dftswitch ? '*' : ' ') 37032215Shelbig#define FSTRARG(p) DFLT(p), (p)->cc, (p)->nm, (p)->dt.y, (p)->dt.m, (p)->dt.d 37131744Shelbig 37231744Shelbig n = sizeof(switches) / sizeof(struct djswitch); 37331744Shelbig m = (n + 1) / 2; 37431744Shelbig n /= 2; 37532215Shelbig for (p = switches; p != switches + n; p++) 37632215Shelbig printf(FSTR" "FSTR"\n", FSTRARG(p), FSTRARG(p+m)); 37731744Shelbig if (m != n) 37832215Shelbig printf(FSTR"\n", FSTRARG(p)); 37931744Shelbig} 38031744Shelbig 38131744Shelbig/* print the date of easter sunday */ 38231744Shelbigvoid 38331744Shelbigprinteaster(int y, int julian, int orthodox) 38431744Shelbig{ 38532215Shelbig date dt; 38632215Shelbig struct tm tm; 38732215Shelbig char buf[80]; 38874573Sache static int d_first = -1; 38931744Shelbig 39074573Sache if (d_first < 0) 39174573Sache d_first = (*nl_langinfo(D_MD_ORDER) == 'd'); 39231744Shelbig /* force orthodox easter for years before 1583 */ 39331744Shelbig if (y < 1583) 39431744Shelbig orthodox = 1; 39531744Shelbig 39631744Shelbig if (orthodox) 39731744Shelbig if (julian) 39831744Shelbig easteroj(y, &dt); 39931744Shelbig else 40031744Shelbig easterog(y, &dt); 40131744Shelbig else 40231744Shelbig easterg(y, &dt); 40332215Shelbig 40432215Shelbig memset(&tm, 0, sizeof(tm)); 40532215Shelbig tm.tm_year = dt.y - 1900; 40632215Shelbig tm.tm_mon = dt.m - 1; 40732215Shelbig tm.tm_mday = dt.d; 40874573Sache strftime(buf, sizeof(buf), d_first ? "%e %B %Y" : "%B %e %Y", &tm); 40932215Shelbig printf("%s\n", buf); 41031744Shelbig} 41131744Shelbig 41231744Shelbigvoid 41331744Shelbigprintmonth(int y, int m, int jd_flag) 41431744Shelbig{ 41531744Shelbig struct monthlines month; 41631744Shelbig struct weekdays wds; 41731744Shelbig int i; 41831744Shelbig 41931744Shelbig mkmonth(y, m - 1, jd_flag, &month); 42031744Shelbig mkweekdays(&wds); 42131744Shelbig printf(" %s %d\n", month.name, y); 42231744Shelbig for (i = 0; i != 7; i++) 42331744Shelbig printf("%.2s%s\n", wds.names[i], month.lines[i]); 42431744Shelbig if (flag_weeks) 42531744Shelbig printf(" %s\n", month.weeks); 42631744Shelbig} 42731744Shelbig 42831744Shelbigvoid 42931744Shelbigprintmonthb(int y, int m, int jd_flag) 43031744Shelbig{ 43131744Shelbig struct monthlines month; 43231744Shelbig struct weekdays wds; 43331744Shelbig char s[MAX_WIDTH], t[MAX_WIDTH]; 43431744Shelbig int i; 43531744Shelbig int mw; 43631744Shelbig 43731744Shelbig mkmonthb(y, m - 1, jd_flag, &month); 43831744Shelbig mkweekdays(&wds); 43931744Shelbig 44031744Shelbig mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 44131744Shelbig 44231744Shelbig sprintf(s, "%s %d", month.name, y); 44331744Shelbig printf("%s\n", center(t, s, mw)); 44431744Shelbig 44531744Shelbig if (jd_flag) 44631744Shelbig printf(" %s %s %s %s %s %s %.2s\n", wds.names[6], wds.names[0], 44731744Shelbig wds.names[1], wds.names[2], wds.names[3], 44831744Shelbig wds.names[4], wds.names[5]); 44931744Shelbig else 45031744Shelbig printf("%s%s%s%s%s%s%.2s\n", wds.names[6], wds.names[0], 45131744Shelbig wds.names[1], wds.names[2], wds.names[3], 45231744Shelbig wds.names[4], wds.names[5]); 45331744Shelbig 45431744Shelbig for (i = 0; i != 6; i++) 45531744Shelbig printf("%s\n", month.lines[i]+1); 45631744Shelbig} 45731744Shelbig 45831744Shelbigvoid 45931744Shelbigprintyear(int y, int jd_flag) 46031744Shelbig{ 46131744Shelbig struct monthlines year[12]; 46231744Shelbig struct weekdays wds; 46331744Shelbig char s[80], t[80]; 46431744Shelbig int i, j; 46531744Shelbig int mpl; 46631744Shelbig int mw; 46731744Shelbig 46831744Shelbig for (i = 0; i != 12; i++) 46931744Shelbig mkmonth(y, i, jd_flag, year + i); 47031744Shelbig mkweekdays(&wds); 47131744Shelbig mpl = jd_flag ? 3 : 4; 47231744Shelbig mw = jd_flag ? MONTH_WIDTH_J : MONTH_WIDTH; 47331744Shelbig 47431744Shelbig sprintf(s, "%d", y); 47531744Shelbig printf("%s\n", center(t, s, mpl * mw)); 47631744Shelbig 47731744Shelbig for (j = 0; j != 12; j += mpl) { 47831744Shelbig printf(" %-*s%-*s", 47931744Shelbig mw, year[j].name, 48031744Shelbig mw, year[j + 1].name); 48131744Shelbig if (mpl == 3) 48231744Shelbig printf("%s\n", year[j + 2].name); 48331744Shelbig else 48431744Shelbig printf("%-*s%s\n", 48531744Shelbig mw, year[j + 2].name, 48631744Shelbig year[j + 3].name); 48731744Shelbig for (i = 0; i != 7; i++) { 48831744Shelbig printf("%.2s%-*s%-*s", 48931744Shelbig wds.names[i], 49031744Shelbig mw, year[j].lines[i], 49131744Shelbig mw, year[j + 1].lines[i]); 49231744Shelbig if (mpl == 3) 49331744Shelbig printf("%s\n", year[j + 2].lines[i]); 49431744Shelbig else 49531744Shelbig printf("%-*s%s\n", 49631744Shelbig mw, year[j + 2].lines[i], 49731744Shelbig year[j + 3].lines[i]); 49831744Shelbig } 49948566Sbillf if (flag_weeks) { 50031744Shelbig if (mpl == 3) 50131744Shelbig printf(" %-*s%-*s%-s\n", 50231744Shelbig mw, year[j].weeks, 50331744Shelbig mw, year[j + 1].weeks, 50431744Shelbig year[j + 2].weeks); 50531744Shelbig else 50631744Shelbig printf(" %-*s%-*s%-*s%-s\n", 50731744Shelbig mw, year[j].weeks, 50831744Shelbig mw, year[j + 1].weeks, 50931744Shelbig mw, year[j + 2].weeks, 51031744Shelbig year[j + 3].weeks); 51148566Sbillf } 51231744Shelbig } 51331744Shelbig} 51431744Shelbig 51531744Shelbigvoid 51631744Shelbigprintyearb(int y, int jd_flag) 51731744Shelbig{ 51831744Shelbig struct monthlines year[12]; 51931744Shelbig struct weekdays wds; 52031744Shelbig char s[80], t[80]; 52131744Shelbig int i, j; 52231744Shelbig int mpl; 52331744Shelbig int mw; 52431744Shelbig 52531744Shelbig for (i = 0; i != 12; i++) 52631744Shelbig mkmonthb(y, i, jd_flag, year + i); 52731744Shelbig mkweekdays(&wds); 52831744Shelbig mpl = jd_flag ? 2 : 3; 52931744Shelbig mw = jd_flag ? MONTH_WIDTH_B_J : MONTH_WIDTH_B; 53031744Shelbig 53131744Shelbig sprintf(s, "%d", y); 53231744Shelbig printf("%s\n\n", center(t, s, mw * mpl + mpl)); 53331744Shelbig 53431744Shelbig for (j = 0; j != 12; j += mpl) { 53531744Shelbig printf("%-*s ", mw, center(s, year[j].name, mw)); 53631744Shelbig if (mpl == 2) 53731744Shelbig printf("%s\n", center(s, year[j + 1].name, mw)); 53831744Shelbig else 53931744Shelbig printf("%-*s %s\n", mw, 54031744Shelbig center(s, year[j + 1].name, mw), 54131744Shelbig center(t, year[j + 2].name, mw)); 54231744Shelbig 54331744Shelbig if (mpl == 2) 54431744Shelbig printf(" %s %s %s %s %s %s %s " 54531744Shelbig " %s %s %s %s %s %s %.2s\n", 54631744Shelbig wds.names[6], wds.names[0], wds.names[1], 54731744Shelbig wds.names[2], wds.names[3], wds.names[4], 54831744Shelbig wds.names[5], 54931744Shelbig wds.names[6], wds.names[0], wds.names[1], 55031744Shelbig wds.names[2], wds.names[3], wds.names[4], 55131744Shelbig wds.names[5]); 55231744Shelbig else 55331744Shelbig printf("%s%s%s%s%s%s%s " 55431744Shelbig "%s%s%s%s%s%s%s " 55531744Shelbig "%s%s%s%s%s%s%.2s\n", 55631744Shelbig wds.names[6], wds.names[0], wds.names[1], 55731744Shelbig wds.names[2], wds.names[3], wds.names[4], 55831744Shelbig wds.names[5], 55931744Shelbig wds.names[6], wds.names[0], wds.names[1], 56031744Shelbig wds.names[2], wds.names[3], wds.names[4], 56131744Shelbig wds.names[5], 56231744Shelbig wds.names[6], wds.names[0], wds.names[1], 56331744Shelbig wds.names[2], wds.names[3], wds.names[4], 56431744Shelbig wds.names[5]); 56531744Shelbig for (i = 0; i != 6; i++) { 56631744Shelbig if (mpl == 2) 56731744Shelbig printf("%-*s %s\n", 56831744Shelbig mw, year[j].lines[i]+1, 56931744Shelbig year[j + 1].lines[i]+1); 57031744Shelbig else 57131744Shelbig printf("%-*s %-*s %s\n", 57231744Shelbig mw, year[j].lines[i]+1, 57331744Shelbig mw, year[j + 1].lines[i]+1, 57431744Shelbig year[j + 2].lines[i]+1); 57531744Shelbig 57631744Shelbig } 57731744Shelbig } 57831744Shelbig} 57931744Shelbig 58031744Shelbigvoid 58131744Shelbigmkmonth(int y, int m, int jd_flag, struct monthlines *mlines) 58231744Shelbig{ 58331744Shelbig 58431744Shelbig struct tm tm; /* for strftime printing local names of 58531744Shelbig * months */ 58631744Shelbig date dt; /* handy date */ 58731744Shelbig int dw; /* width of numbers */ 58831744Shelbig int first; /* first day of month */ 58931744Shelbig int firstm; /* first day of first week of month */ 59031744Shelbig int i, j, k; /* just indices */ 59131744Shelbig int last; /* the first day of next month */ 59231744Shelbig int jan1 = 0; /* the first day of this year */ 59331744Shelbig char *ds; /* pointer to day strings (daystr or 59431744Shelbig * jdaystr) */ 59531744Shelbig 59631744Shelbig /* Set name of month. */ 59731744Shelbig memset(&tm, 0, sizeof(tm)); 59831744Shelbig tm.tm_mon = m; 59951201Sache strftime(mlines->name, sizeof(mlines->name), "%OB", &tm); 60074612Sache mlines->name[0] = toupper((unsigned char)mlines->name[0]); 60131744Shelbig 60231744Shelbig /* 60331744Shelbig * Set first and last to the day number of the first day of this 60431744Shelbig * month and the first day of next month respectively. Set jan1 to 60532282Shelbig * the day number of the first day of this year. 60631744Shelbig */ 60732282Shelbig first = firstday(y, m + 1); 60832282Shelbig if (m == 11) 60932282Shelbig last = firstday(y + 1, 1); 61032282Shelbig else 61132282Shelbig last = firstday(y, m + 2); 61231744Shelbig 61332282Shelbig if (jd_flag) 61432525Shelbig jan1 = firstday(y, 1); 61531744Shelbig 61631744Shelbig /* 61731744Shelbig * Set firstm to the day number of monday of the first week of 61831744Shelbig * this month. (This might be in the last month) 61931744Shelbig */ 62031744Shelbig firstm = first - weekday(first); 62131744Shelbig 62231744Shelbig /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 62331744Shelbig if (jd_flag) { 62431744Shelbig ds = jdaystr; 62531744Shelbig dw = 4; 62631744Shelbig } else { 62731744Shelbig ds = daystr; 62831744Shelbig dw = 3; 62931744Shelbig } 63031744Shelbig 63131744Shelbig /* 63231744Shelbig * Fill the lines with day of month or day of year (julian day) 63331744Shelbig * line index: i, each line is one weekday. column index: j, each 63431744Shelbig * column is one day number. print column index: k. 63531744Shelbig */ 63631744Shelbig for (i = 0; i != 7; i++) { 63731744Shelbig for (j = firstm + i, k = 0; j < last; j += 7, k += dw) 63831744Shelbig if (j >= first) { 63931744Shelbig if (jd_flag) 64031744Shelbig dt.d = j - jan1 + 1; 64131744Shelbig else 64231744Shelbig sdate(j, &dt); 64331744Shelbig memcpy(mlines->lines[i] + k, 64431744Shelbig ds + dt.d * dw, dw); 64531744Shelbig } else 64631744Shelbig memcpy(mlines->lines[i] + k, " ", dw); 64731744Shelbig mlines->lines[i][k] = '\0'; 64831744Shelbig 64931744Shelbig } 65031744Shelbig 65131744Shelbig /* fill the weeknumbers */ 65231744Shelbig if (flag_weeks) { 65331744Shelbig for (j = firstm, k = 0; j < last; k += dw, j += 7) 65431744Shelbig if (j <= nswitch) 65531744Shelbig memset(mlines->weeks + k, ' ', dw); 65631744Shelbig else 65731744Shelbig memcpy(mlines->weeks + k, 65831744Shelbig ds + week(j, &i)*dw, dw); 65931744Shelbig mlines->weeks[k] = '\0'; 66031744Shelbig } 66131744Shelbig} 66231744Shelbig 66331744Shelbigvoid 66431744Shelbigmkmonthb(int y, int m, int jd_flag, struct monthlines *mlines) 66531744Shelbig{ 66631744Shelbig 66731744Shelbig struct tm tm; /* for strftime printing local names of 66831744Shelbig * months */ 66931744Shelbig date dt; /* handy date */ 67031744Shelbig int dw; /* width of numbers */ 67131744Shelbig int first; /* first day of month */ 67231744Shelbig int firsts; /* sunday of first week of month */ 67331744Shelbig int i, j, k; /* just indices */ 67431744Shelbig int jan1 = 0; /* the first day of this year */ 67531744Shelbig int last; /* the first day of next month */ 67631744Shelbig char *ds; /* pointer to day strings (daystr or 67731744Shelbig * jdaystr) */ 67831744Shelbig 67931744Shelbig /* Set ds (daystring) and dw (daywidth) according to the jd_flag */ 68031744Shelbig if (jd_flag) { 68131744Shelbig ds = jdaystr; 68231744Shelbig dw = 4; 68331744Shelbig } else { 68431744Shelbig ds = daystr; 68531744Shelbig dw = 3; 68631744Shelbig } 68731744Shelbig 68831744Shelbig /* Set name of month centered */ 68931744Shelbig memset(&tm, 0, sizeof(tm)); 69031744Shelbig tm.tm_mon = m; 69151201Sache strftime(mlines->name, sizeof(mlines->name), "%OB", &tm); 69274612Sache mlines->name[0] = toupper((unsigned char)mlines->name[0]); 69331744Shelbig 69431744Shelbig /* 69531744Shelbig * Set first and last to the day number of the first day of this 69631744Shelbig * month and the first day of next month respectively. Set jan1 to 69731744Shelbig * the day number of Jan 1st of this year. 69831744Shelbig */ 69931744Shelbig dt.y = y; 70031744Shelbig dt.m = m + 1; 70131744Shelbig dt.d = 1; 70231744Shelbig first = sndaysb(&dt); 70331744Shelbig if (m == 11) { 70431744Shelbig dt.y = y + 1; 70531744Shelbig dt.m = 1; 70631744Shelbig dt.d = 1; 70731744Shelbig } else { 70831744Shelbig dt.y = y; 70931744Shelbig dt.m = m + 2; 71031744Shelbig dt.d = 1; 71131744Shelbig } 71231744Shelbig last = sndaysb(&dt); 71331744Shelbig 71431744Shelbig if (jd_flag) { 71531744Shelbig dt.y = y; 71631744Shelbig dt.m = 1; 71731744Shelbig dt.d = 1; 71831744Shelbig jan1 = sndaysb(&dt); 71931744Shelbig } 72031744Shelbig 72131744Shelbig /* 72231744Shelbig * Set firsts to the day number of sunday of the first week of 72331744Shelbig * this month. (This might be in the last month) 72431744Shelbig */ 72531744Shelbig firsts = first - (weekday(first)+1) % 7; 72631744Shelbig 72731744Shelbig /* 72831744Shelbig * Fill the lines with day of month or day of year (Julian day) 72931744Shelbig * line index: i, each line is one week. column index: j, each 73031744Shelbig * column is one day number. print column index: k. 73131744Shelbig */ 73231744Shelbig for (i = 0; i != 6; i++) { 73331744Shelbig for (j = firsts + 7 * i, k = 0; j < last && k != dw * 7; 73431744Shelbig j++, k += dw) 73531744Shelbig if (j >= first) { 73631744Shelbig if (jd_flag) 73731744Shelbig dt.d = j - jan1 + 1; 73831744Shelbig else 73931744Shelbig sdateb(j, &dt); 74031744Shelbig memcpy(mlines->lines[i] + k, 74131744Shelbig ds + dt.d * dw, dw); 74231744Shelbig } else 74331744Shelbig memcpy(mlines->lines[i] + k, " ", dw); 74431744Shelbig if (k == 0) 74531744Shelbig mlines->lines[i][1] = '\0'; 74631744Shelbig else 74731744Shelbig mlines->lines[i][k] = '\0'; 74831744Shelbig } 74931744Shelbig} 75031744Shelbig 75131744Shelbig/* Put the local names of weekdays into the wds */ 75232139Shelbigvoid 75332139Shelbigmkweekdays(struct weekdays *wds) 75431744Shelbig{ 75574618Sache int i, len; 75631744Shelbig struct tm tm; 75774618Sache char buf[20]; 75831744Shelbig 75931744Shelbig memset(&tm, 0, sizeof(tm)); 76031744Shelbig 76131744Shelbig for (i = 0; i != 7; i++) { 76231744Shelbig tm.tm_wday = (i+1) % 7; 76374618Sache strftime(buf, sizeof(buf), "%a", &tm); 76474618Sache len = strlen(buf); 76574618Sache if (len > 2) 76674618Sache len = 2; 76774618Sache strcpy(wds->names[i], " "); 76874618Sache strncpy(wds->names[i] + 2 - len, buf, len); 76931744Shelbig } 77031744Shelbig} 77131744Shelbig 77231744Shelbig/* 77345064Shelbig * Compute the day number of the first 77445064Shelbig * existing date after the first day in month. 77545064Shelbig * (the first day in month and even the month might not exist!) 77632282Shelbig */ 77732282Shelbigint 77832282Shelbigfirstday(int y, int m) 77932282Shelbig{ 78032282Shelbig date dt; 78132282Shelbig int nd; 78232282Shelbig 78332282Shelbig dt.y = y; 78432282Shelbig dt.m = m; 78532282Shelbig dt.d = 1; 78645064Shelbig nd = sndays(&dt); 78745064Shelbig for (;;) { 78845064Shelbig sdate(nd, &dt); 78945064Shelbig if ((dt.m >= m && dt.y == y) || dt.y > y) 79045064Shelbig return (nd); 79145064Shelbig else 79245064Shelbig nd++; 79345064Shelbig } 79445064Shelbig /* NEVER REACHED */ 79532282Shelbig} 79632282Shelbig 79732282Shelbig/* 79831744Shelbig * Compute the number of days from date, obey the local switch from 79931744Shelbig * Julian to Gregorian if specified by the user. 80031744Shelbig */ 80131744Shelbigint 80231744Shelbigsndays(struct date *d) 80331744Shelbig{ 80431744Shelbig 80531744Shelbig if (nswitch != 0) 80631744Shelbig if (nswitch < ndaysj(d)) 80731744Shelbig return (ndaysg(d)); 80831744Shelbig else 80931744Shelbig return (ndaysj(d)); 81031744Shelbig else 81131744Shelbig return ndaysg(d); 81231744Shelbig} 81331744Shelbig 81431744Shelbig/* 81531744Shelbig * Compute the number of days from date, obey the switch from 81631744Shelbig * Julian to Gregorian as used by UK and her colonies. 81731744Shelbig */ 81831744Shelbigint 81931744Shelbigsndaysb(struct date *d) 82031744Shelbig{ 82131744Shelbig 82231744Shelbig if (nswitchb < ndaysj(d)) 82331744Shelbig return (ndaysg(d)); 82431744Shelbig else 82531744Shelbig return (ndaysj(d)); 82631744Shelbig} 82731744Shelbig 82831744Shelbig/* Inverse of sndays */ 82931744Shelbigstruct date * 83031744Shelbigsdate(int nd, struct date *d) 83131744Shelbig{ 83231744Shelbig 83331744Shelbig if (nswitch < nd) 83431744Shelbig return (gdate(nd, d)); 83531744Shelbig else 83631744Shelbig return (jdate(nd, d)); 83731744Shelbig} 83831744Shelbig 83931744Shelbig/* Inverse of sndaysb */ 84031744Shelbigstruct date * 84131744Shelbigsdateb(int nd, struct date *d) 84231744Shelbig{ 84331744Shelbig 84431744Shelbig if (nswitchb < nd) 84531744Shelbig return (gdate(nd, d)); 84631744Shelbig else 84731744Shelbig return (jdate(nd, d)); 84831744Shelbig} 84931744Shelbig 85031744Shelbig/* Center string t in string s of length w by putting enough leading blanks */ 85131744Shelbigchar * 85231744Shelbigcenter(char *s, char *t, int w) 85331744Shelbig{ 85431744Shelbig char blanks[80]; 85531744Shelbig 85631744Shelbig memset(blanks, ' ', sizeof(blanks)); 85731744Shelbig sprintf(s, "%.*s%s", (int)(w - strlen(t)) / 2, blanks, t); 85831744Shelbig return (s); 85931744Shelbig} 860104369Sroam 861104369Sroamint 862104369Sroamparsemonth(const char *s) 863104369Sroam{ 864104369Sroam int v; 865104369Sroam char *cp; 866104369Sroam struct tm tm; 867104369Sroam 868104369Sroam v = (int)strtol(s, &cp, 10); 869104369Sroam if (cp != s) 870104369Sroam return (v); 871104369Sroam if (strptime(s, "%B", &tm) != NULL) 872104369Sroam return (tm.tm_mon + 1); 873104369Sroam if (strptime(s, "%b", &tm) != NULL) 874104369Sroam return (tm.tm_mon + 1); 875104369Sroam return (0); 876104369Sroam} 877