calendar.1, calendar.c:

Updates for v1.1 as submitted by Marlin Allred.  His comments:

	"I compiled calendar with the 2.0.6 libraries and fixed it so
	 the date could be put anywhere on the line. I also fix[ed] the
	 program so that tomorrow's and Monday's activity was also being
	listed. The man page for calendar was also updated. [...] I did
	not update the source file to indicate the changes made."

calendar.desc:
	Updated for v1.1.
This commit is contained in:
gdr-ftp 1998-07-04 17:24:38 +00:00
parent 5a9733461b
commit b40c451852
3 changed files with 80 additions and 49 deletions

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@ -1,21 +1,25 @@
CALENDAR(1) CALENDAR(1)
NAME
calendar - reminder service
SYNOPSIS
calendar
DESCRIPTION
calendar consults the file calendar in the current directory and prints
out lines that contain today's or tomorrow's date anywhere in the line.
Most reasonable month-day dates such as ``Aug. 24,'' ``august 24,''
``8/24,'' etc., are recognized, but not ``24 August'' or ``24/8''. On
weekends ``tomorrow'' extends through Monday.
BUGS
calendar's extended idea of ``tomorrow'' does not account for holidays.
Page 1 Release 4.0.5 May 1992
.TH CALENDAR 1 "June 30, 1998"
.SH NAME
.BR calendar
\- reminder service
.SH SYNOPSIS
calendar
.SH DESCRIPTION
.BR calendar
consults the file calendar in the current directory
and prints out lines that contain today's or tomorrow's date
anywhere in the line. Most reasonable month-day dates such as
Aug. 24, august 24, 8/24, and so on, are recognized, but not
24 August or 24/8. On weekends ``tomorrow'' extends through
Monday.
.BR calendar
can be invoked regularly by using the
crontab(1) or at(1) commands.
.SH REFERENCES
at(1), cron(1M), crontab(1), date(1)
.SH NOTICES
.BR calendar's
extended idea of ``tomorrow'' does not account for
holidays.

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@ -1,12 +1,13 @@
/* Calendar file v1.0. Copyright 1994 by Christopher Neufeld */
/* The executable for this file contains linked runtime libraries
copyrighted by The Byte Works. Used with permission. */
copyrighted by The Byte Works. Used with permission. */
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <time.h>
#include <ctype.h>
#include <string.h>
#pragma stacksize 512
@ -16,11 +17,16 @@
#define CALFILE "calendar"
#define SECSPERDAY (24 * 60 * 60)
#define SECSPERDAY (24 * 60 * (long)60)
const char months[NMONTHS][] = {"jan", "feb", "mar", "apr", "may", "jun",
const char months[NMONTHS][4] = {"jan", "feb", "mar", "apr", "may", "jun",
"jul", "aug", "sep", "oct", "nov", "dec"};
#ifdef NODIFFTIME
#define difftime(x1,x2) (double)((x1) - (x2))
#endif /* Note that this is not necessarily portable, but works with */
/* some systems which don't have 'difftime' */
int main(void)
{
FILE *ifile;
@ -30,52 +36,73 @@ int main(void)
char *ptr1, *ptr2, holdmnth[4];
static char thislin[MAXLINELEN+1];
long deltat;
long ldayschk;
if ((ifile = fopen(CALFILE, "r")) == NULL) exit(0);
t1 = time(NULL);
st1 = *localtime(&t1);
st1.tm_sec = st1.tm_min = st1.tm_hour = 0;
t1 = mktime(&st1);
dayschk = (st1.tm_wday >= 5) ? 8 - st1.tm_wday : 1;
if ((ifile = fopen(CALFILE, "r")) == NULL) exit(0); /* Open calendar file
in CWD. If there is none, exit successfully */
t1 = time(NULL); /* Get the current time */
st1 = *localtime(&t1); /* Convert to formatted date/time */
st1.tm_sec = st1.tm_min = st1.tm_hour = 0; /* Pretend it's midnight, it
makes the checking later much easier */
t1 = mktime(&st1); /* Make an internal representation for that midnight
(the one which heralded today's date) */
dayschk = (st1.tm_wday >= 5) ? 8 - st1.tm_wday : 2; /* Check today and
tomorrow, unless tomorrow is on the weekend, in
which case we check up to and including Monday */
thislin[MAXLINELEN] = 0;
while (!feof(ifile)) {
fgets(thislin, MAXLINELEN, ifile);
if (fgets(thislin, MAXLINELEN, ifile) == NULL) { /* Get a line from the calendar file */
if (feof(ifile)) break; /* Didn't read a line, if we're done, quit */
fprintf(stderr, "Can't happen\n");
continue; /* Something funny happened on the read */
}
ptr1 = thislin;
while (isspace(*ptr1) && *ptr1 != 0) ptr1++;
while (isspace(*ptr1) && *ptr1 != 0) ptr1++; /* Flush initial whitespace */
if (*ptr1 == 0) continue; /* Blank line */
monthnum = -1;
while (*ptr1) {
if (isdigit(*ptr1)) { /* month/day format */
monthnum = strtoul(ptr1, &ptr2, 10) - 1;
daynum = strtoul(ptr2+1, NULL, 10);
if (monthnum < 0 || monthnum >= NMONTHS || daynum < 0 || daynum > NDAYS)
continue;
/* We've now parsed a month/day format line */
if (monthnum && monthnum < NMONTHS && daynum && daynum <= NDAYS)
break; /* Valid date, print line of the file */
} else {
for (i=0; i<3; i++) holdmnth[i] = tolower(ptr1[i]);
for (i=0; i<3; i++) holdmnth[i] = tolower(ptr1[i]); /* make the search
case-insensitive */
holdmnth[3] = 0;
for (i = 0; i < NMONTHS; i++)
if (!(strcmp(holdmnth, months[i]))) {
monthnum = i;
monthnum = i; /* look for "jan", "feb", etc. */
break;
}
if (monthnum == -1) continue;
while (!isspace(*ptr1) && *ptr1 != 0) ptr1++;
if (*ptr1 == 0) continue;
while (isspace(*ptr1) && *ptr1 != 0) ptr1++;
if (*ptr1 == 0) continue;
daynum = atoi(ptr1);
if (daynum < 1 || daynum > NDAYS) continue;
if (monthnum != -1) { /* found a valid month, get day */
while (!isspace(*ptr1) && *ptr1 != 0) ptr1++; /* flush text */
if (*ptr1 == 0) break;
while (isspace(*ptr1) && *ptr1 != 0) ptr1++; /* flush whitespace */
if (*ptr1 == 0) break; /* No day number, go to next line in file */
daynum = atoi(ptr1); /* get day number */
if (daynum >= 1 && daynum <= NDAYS) break; /* Valid, go print line */
}
}
ptr1++;
}
st2.tm_sec = st2.tm_min = st2.tm_hour = st2.tm_isdst = 0;
st2.tm_mday = daynum;
st2.tm_mon = monthnum;
st2.tm_year = st1.tm_year;
t2 = mktime(&st2);
if ((deltat = difftime(t2, t1)) < 0) { /* Next year */
/* We've now set up the time for midnight at the
beginning of the day represented by the line we
found in the calendar file */
t2 = mktime(&st2); /* Change to internal format */
if ((deltat = difftime(t2, t1)) < 0) { /* The day was in the past, check
the same date next year */
st2.tm_year++;
t2 = mktime(&st2);
deltat = difftime(t2, t1);
}
if (deltat <= dayschk * SECSPERDAY) printf(thislin);
/* print the entire line if it is inside our acceptance window */
}
fclose(ifile);
exit(0);

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@ -1,11 +1,11 @@
Name: calendar
Version: 1.0
Version: 1.1
Shell: GNO
Author: Christopher Neufeld
Contact: neufeld@physics.utoronto.ca
Where: /usr/local/games
FTP: ftp.gno.org, ground.isca.uiowa.edu
Author: Christopher Neufeld, Marlin Allred
Contact: neufeld@physics.utoronto.ca, Marlin.Allred@unisys.com
Where: /usr/games
FTP: ftp.gno.org
This program consults a calandar database, and prints out entries
This program consults a calandar database, and prints out entries
corresponding to today's or tomorrow's entries. On weekends, "tomorrow"
extends through Monday.