diff options
Diffstat (limited to 'usr.bin/calendar/day.c')
-rw-r--r-- | usr.bin/calendar/day.c | 416 |
1 files changed, 24 insertions, 392 deletions
diff --git a/usr.bin/calendar/day.c b/usr.bin/calendar/day.c index e40481e..237b6b5 100644 --- a/usr.bin/calendar/day.c +++ b/usr.bin/calendar/day.c @@ -1,4 +1,4 @@ -/* +/*- * Copyright (c) 1989, 1993, 1994 * The Regents of the University of California. All rights reserved. * @@ -10,10 +10,6 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. @@ -34,9 +30,6 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#include <sys/types.h> -#include <sys/uio.h> -#include <ctype.h> #include <err.h> #include <locale.h> #include <stdio.h> @@ -46,120 +39,38 @@ __FBSDID("$FreeBSD$"); #include "calendar.h" -struct tm *tp; -static const struct tm tm0; -int *cumdays, yrdays; -char dayname[10]; - - -/* 1-based month, 0-based days, cumulative */ -int daytab[][14] = { - {0, -1, 30, 58, 89, 119, 150, 180, 211, 242, 272, 303, 333, 364}, - {0, -1, 30, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365}, -}; - -static char const *days[] = { - "sun", "mon", "tue", "wed", "thu", "fri", "sat", NULL, -}; - -static const char *months[] = { - "jan", "feb", "mar", "apr", "may", "jun", - "jul", "aug", "sep", "oct", "nov", "dec", NULL, -}; - -static struct fixs fndays[8]; /* full national days names */ -static struct fixs ndays[8]; /* short national days names */ - -static struct fixs fnmonths[13]; /* full national months names */ -static struct fixs nmonths[13]; /* short national month names */ +time_t time1, time2; +const struct tm tm0; +char dayname[100]; +int year1, year2; void -setnnames(void) +settimes(time_t now, int before, int after, int friday, struct tm *tp1, struct tm *tp2) { - char buf[80]; - int i, l; - struct tm tm; - - for (i = 0; i < 7; i++) { - tm.tm_wday = i; - strftime(buf, sizeof(buf), "%a", &tm); - for (l = strlen(buf); - l > 0 && isspace((unsigned char)buf[l - 1]); - l--) - ; - buf[l] = '\0'; - if (ndays[i].name != NULL) - free(ndays[i].name); - if ((ndays[i].name = strdup(buf)) == NULL) - errx(1, "cannot allocate memory"); - ndays[i].len = strlen(buf); - - strftime(buf, sizeof(buf), "%A", &tm); - for (l = strlen(buf); - l > 0 && isspace((unsigned char)buf[l - 1]); - l--) - ; - buf[l] = '\0'; - if (fndays[i].name != NULL) - free(fndays[i].name); - if ((fndays[i].name = strdup(buf)) == NULL) - errx(1, "cannot allocate memory"); - fndays[i].len = strlen(buf); - } + char *oldl, *lbufp; + struct tm tp; - for (i = 0; i < 12; i++) { - tm.tm_mon = i; - strftime(buf, sizeof(buf), "%b", &tm); - for (l = strlen(buf); - l > 0 && isspace((unsigned char)buf[l - 1]); - l--) - ; - buf[l] = '\0'; - if (nmonths[i].name != NULL) - free(nmonths[i].name); - if ((nmonths[i].name = strdup(buf)) == NULL) - errx(1, "cannot allocate memory"); - nmonths[i].len = strlen(buf); + localtime_r(&now, &tp); - strftime(buf, sizeof(buf), "%B", &tm); - for (l = strlen(buf); - l > 0 && isspace((unsigned char)buf[l - 1]); - l--) - ; - buf[l] = '\0'; - if (fnmonths[i].name != NULL) - free(fnmonths[i].name); - if ((fnmonths[i].name = strdup(buf)) == NULL) - errx(1, "cannot allocate memory"); - fnmonths[i].len = strlen(buf); - } -} + /* Friday displays Monday's events */ + if (after == 0 && before == 0 && friday != -1) + after = tp.tm_wday == friday ? 3 : 1; -void -settime(time_t now) -{ - char *oldl, *lbufp; + time1 = now - SECSPERDAY * before; + localtime_r(&time1, tp1); + year1 = 1900 + tp1->tm_year; + time2 = now + SECSPERDAY * after; + localtime_r(&time2, tp2); + year2 = 1900 + tp2->tm_year; - tp = localtime(&now); - if (isleap(tp->tm_year + 1900)) { - yrdays = 366; - cumdays = daytab[1]; - } else { - yrdays = 365; - cumdays = daytab[0]; - } - /* Friday displays Monday's events */ - if (f_dayAfter == 0 && f_dayBefore == 0 && Friday != -1) - f_dayAfter = tp->tm_wday == Friday ? 3 : 1; - header[5].iov_base = dayname; + strftime(dayname, sizeof(dayname) - 1, "%A, %d %B %Y", tp1); oldl = NULL; lbufp = setlocale(LC_TIME, NULL); if (lbufp != NULL && (oldl = strdup(lbufp)) == NULL) errx(1, "cannot allocate memory"); (void)setlocale(LC_TIME, "C"); - header[5].iov_len = strftime(dayname, sizeof(dayname), "%A", tp); (void)setlocale(LC_TIME, (oldl != NULL ? oldl : "")); if (oldl != NULL) free(oldl); @@ -175,15 +86,15 @@ Mktime(char *dp) { time_t t; int d, m, y; - struct tm tm; + struct tm tm, tp; (void)time(&t); - tp = localtime(&t); + localtime_r(&t, &tp); tm = tm0; - tm.tm_mday = tp->tm_mday; - tm.tm_mon = tp->tm_mon; - tm.tm_year = tp->tm_year; + tm.tm_mday = tp.tm_mday; + tm.tm_mon = tp.tm_mon; + tm.tm_year = tp.tm_year; switch (sscanf(dp, "%d.%d.%d", &d, &m, &y)) { case 3: @@ -204,282 +115,3 @@ Mktime(char *dp) #endif return (mktime(&tm)); } - -/* - * Possible date formats include any combination of: - * 3-charmonth (January, Jan, Jan) - * 3-charweekday (Friday, Monday, mon.) - * numeric month or day (1, 2, 04) - * - * Any character may separate them, or they may not be separated. Any line, - * following a line that is matched, that starts with "whitespace", is shown - * along with the matched line. - */ -int -isnow(char *endp, int *monthp, int *dayp, int *varp) -{ - int day, flags, month = 0, v1, v2; - - /* - * CONVENTION - * - * Month: 1-12 - * Monthname: Jan .. Dec - * Day: 1-31 - * Weekday: Mon-Sun - * - */ - - flags = 0; - - /* read first field */ - /* didn't recognize anything, skip it */ - if (!(v1 = getfield(endp, &endp, &flags))) - return (0); - - /* Easter or Easter depending days */ - if (flags & F_EASTER) - day = v1 - 1; /* days since January 1 [0-365] */ - - /* - * 1. {Weekday,Day} XYZ ... - * - * where Day is > 12 - */ - else if (flags & F_ISDAY || v1 > 12) { - - /* found a day; day: 1-31 or weekday: 1-7 */ - day = v1; - - /* {Day,Weekday} {Month,Monthname} ... */ - /* if no recognizable month, assume just a day alone - * in other words, find month or use current month */ - if (!(month = getfield(endp, &endp, &flags))) - month = tp->tm_mon + 1; - } - - /* 2. {Monthname} XYZ ... */ - else if (flags & F_ISMONTH) { - month = v1; - - /* Monthname {day,weekday} */ - /* if no recognizable day, assume the first day in month */ - if (!(day = getfield(endp, &endp, &flags))) - day = 1; - } - - /* Hm ... */ - else { - v2 = getfield(endp, &endp, &flags); - - /* - * {Day} {Monthname} ... - * where Day <= 12 - */ - if (flags & F_ISMONTH) { - day = v1; - month = v2; - *varp = 0; - } - - /* {Month} {Weekday,Day} ... */ - else { - /* F_ISDAY set, v2 > 12, or no way to tell */ - month = v1; - /* if no recognizable day, assume the first */ - day = v2 ? v2 : 1; - *varp = 0; - } - } - - /* convert Weekday into *next* Day, - * e.g.: 'Sunday' -> 22 - * 'SundayLast' -> ?? - */ - if (flags & F_ISDAY) { -#ifdef DEBUG - fprintf(stderr, "\nday: %d %s month %d\n", day, endp, month); -#endif - - *varp = 1; - /* variable weekday, SundayLast, MondayFirst ... */ - if (day < 0 || day >= 10) { - - /* negative offset; last, -4 .. -1 */ - if (day < 0) { - v1 = day / 10 - 1; /* offset -4 ... -1 */ - day = 10 + (day % 10); /* day 1 ... 7 */ - - /* day, eg '22nd' */ - v2 = tp->tm_mday + - (((day - 1) - tp->tm_wday + 7) % 7); - - /* (month length - day) / 7 + 1 */ - if (cumdays[month + 1] - cumdays[month] >= v2 - && ((int)((cumdays[month + 1] - - cumdays[month] - v2) / 7) + 1) == -v1) - day = v2; /* bingo ! */ - - /* set to yesterday */ - else { - day = tp->tm_mday - 1; - if (day == 0) - return (0); - } - } - - /* first, second ... +1 ... +5 */ - else { - /* offset: +1 (first Sunday) ... */ - v1 = day / 10; - day = day % 10; - - /* day, eg '22th' */ - v2 = tp->tm_mday + - (((day - 1) - tp->tm_wday + 7) % 7); - - /* Hurrah! matched */ - if (((v2 - 1 + 7) / 7) == v1 ) - day = v2; - - else { - /* set to yesterday */ - day = tp->tm_mday - 1; - if (day == 0) - return (0); - } - } - } else { - /* wired */ - day = tp->tm_mday + (((day - 1) - tp->tm_wday + 7) % 7); - *varp = 1; - } - } - - if (!(flags & F_EASTER)) { - if (day + cumdays[month] > cumdays[month + 1]) { - /* off end of month, adjust */ - day -= (cumdays[month + 1] - cumdays[month]); - /* next year */ - if (++month > 12) - month = 1; - } - *monthp = month; - *dayp = day; - day = cumdays[month] + day; - } else { - for (v1 = 0; day > cumdays[v1]; v1++) - ; - *monthp = v1 - 1; - *dayp = day - cumdays[v1 - 1]; - *varp = 1; - } - -#ifdef DEBUG - fprintf(stderr, "day2: day %d(%d-%d) yday %d\n", - *dayp, day, cumdays[month], tp->tm_yday); -#endif - - /* When days before or days after is specified */ - /* no year rollover */ - if (day >= tp->tm_yday - f_dayBefore && - day <= tp->tm_yday + f_dayAfter) - return (1); - - /* next year */ - if (tp->tm_yday + f_dayAfter >= yrdays) { - int end = tp->tm_yday + f_dayAfter - yrdays; - if (day <= end) - return (1); - } - - /* previous year */ - if (tp->tm_yday - f_dayBefore < 0) { - int before = yrdays + (tp->tm_yday - f_dayBefore); - if (day >= before) - return (1); - } - - return (0); -} - - -int -getmonth(char *s) -{ - const char **p; - struct fixs *n; - - for (n = fnmonths; n->name; ++n) - if (!strncasecmp(s, n->name, n->len)) - return ((n - fnmonths) + 1); - for (n = nmonths; n->name; ++n) - if (!strncasecmp(s, n->name, n->len)) - return ((n - nmonths) + 1); - for (p = months; *p; ++p) - if (!strncasecmp(s, *p, 3)) - return ((p - months) + 1); - return (0); -} - - -int -getday(char *s) -{ - const char **p; - struct fixs *n; - - for (n = fndays; n->name; ++n) - if (!strncasecmp(s, n->name, n->len)) - return ((n - fndays) + 1); - for (n = ndays; n->name; ++n) - if (!strncasecmp(s, n->name, n->len)) - return ((n - ndays) + 1); - for (p = days; *p; ++p) - if (!strncasecmp(s, *p, 3)) - return ((p - days) + 1); - return (0); -} - -/* return offset for variable weekdays - * -1 -> last weekday in month - * +1 -> first weekday in month - * ... etc ... - */ -int -getdayvar(char *s) -{ - int offs; - - offs = strlen(s); - - /* Sun+1 or Wednesday-2 - * ^ ^ */ - - /* fprintf(stderr, "x: %s %s %d\n", s, s + offs - 2, offs); */ - switch (*(s + offs - 2)) { - case '-': - return (-(atoi(s + offs - 1))); - case '+': - return (atoi(s + offs - 1)); - } - - /* - * some aliases: last, first, second, third, fourth - */ - - /* last */ - if (offs > 4 && !strcasecmp(s + offs - 4, "last")) - return (-1); - else if (offs > 5 && !strcasecmp(s + offs - 5, "first")) - return (+1); - else if (offs > 6 && !strcasecmp(s + offs - 6, "second")) - return (+2); - else if (offs > 5 && !strcasecmp(s + offs - 5, "third")) - return (+3); - else if (offs > 6 && !strcasecmp(s + offs - 6, "fourth")) - return (+4); - - /* no offset detected */ - return (0); -} |