Time-Simple version 0.055
=========================
NAME
Time::Simple - A simple, light-weight ISO 8601 time object.
SYNOPSIS
use Time::Simple;
my $time = Time::Simple->new('23:24:59');
my $hour = $time->hours;
my $minute = $time->minutes;
my $second = $time->seconds;
my $time2 = Time::Simple->new($hour, $minute, $second);
my $now = Time::Simple->new;
my $nexthour = $now + (60*60);
print "An hour from now is $nexthour.\n";
if ($nexthour->hour > 23) {
print "It'll be tomorrow within the next hour!\n";
}
# You can also do this:
($time cmp "23:24:25")
# ...and this:
($time <=> [23, 24, 25])
$time++; # Add a second
$time--; # Subtract a second
# Seconds of difference:
$seconds = Time::Simple->new("00:00:02")
- Time::Simple->new("00:00:01");
my $now = Time::Simple->new;
# A minute from now:
my $then = Time::Simple->new( $now + 60 );
# Or:
my $soon = Time::Simple->new( '00:01:00' );
DESCRIPTION
A simple, light-weight time object.
This version should be considered an alpha developer release.
How do you think this moudle should handle return values of
multiplacation, where the return value would be greater than 23:59:59?
INSTALLATION
To install this module type the following:
perl Makefile.PL
make
make test
make install
FATAL ERRORS
Attempting to create an invalid time with this module will return
"undef" rather than an object.
Some operations can produce fatal errors: these can be replaced by
warnings and the return of "undef" by switching the value of $FATALS:
$Time::Simple::FATALS = undef;
You will then only get warnings to "STDERR", and even then only if you
asked perl for warnings with "use warnings" or by setting $^W either
directly or with the "-w" command-line switch.
The constructor "new" returns a "Time::Simple" object if the supplied
values specify a valid time, otherwise returns "undef".
Valid times are either as supplied by the time, or in ISO 8601 format.
In the latter case, the values may be supplied as a colon-delimited
scalar, as a list, or as an anonymous array.
If nothing is supplied to the constructor, the current local time will
be used.
INSTANCE METHODS
METHOD next
my $will_be_by_one_second = $now->next;
Returns the next time by incrementing the caller's time by one second.
METHOD prev
my $was_by_one_second = $now->prev;
Returns the last time by decrementing the caller's time by one second.
METHOD hour
my $hr = $time->hour;
The hour. Alias: "hours".
METHOD minute
my $min = $time->minute;
The minutes. Alias: "minutes".
METHOD second
my $sec = $time->second;
The seconds. Alias: "seconds".
format
Returns a string representing the time, in the format specified. If you
don't pass a parameter, an ISO 8601 formatted time is returned.
$date->format;
$date->format("%H hours, %M minutes, and %S seconds");
$date->format("%H-%M-%S");
The formatting parameter is as you would pass to strftime(3): "strftime"
in POSIX.
OPERATORS
Some operators can be used with "Time::Simple" objects:
+= -=
You can increment or decrement a time by a number of seconds using
the "+=" and "-=" operators
+ - You can construct new times offset by a number of seconds using the
"+" and "-" operators.
- You can subtract two times ("$t1 - $t2") to find the number of
seconds between them.
comparison
You can compare two times using the arithmetic and/or string
comparison operators: "lt le ge gt < <= >= >".
"" You can interpolate a time instance directly into a string, in the
format specified by ISO 8601 (eg: 23:24:25).
* You can multiply a time by a number: "00:00:30 * 2 = 00:01:00".
/ You can divide a time by a number: "00:02:00 * 2 = 00:01:00".
DIAGNOSTICS
"Illegal octal digit ...."
You probably used an anonymous array and prefixed a number with a
leading zero, as you would if you supplied a scalar string:
"[11,10,09]".
TODO
Suggestions welcome. How should operators not mentioend behave? Can one
"verbar" times?
SEE ALSO
Time::HiRes, Date::Time, Date::Simple, "localtime" in perlfunc, "time"
in perlfunc. "strftime" in POSIX, "mktime" in POSIX.
LATEST CHANGES
Version 0.05 Sun 02 July 16:52 2006 - Added multiply and division
CREDITS
This module is a rewrite of Marty Pauley's excellent and very useful
"Date::Simple" object. If you're reading, Marty: many thanks. For
support, though, please contact Lee Goddard (lgoddard -at- cpan -dot-
org) or use rt.cpan.org.
Thanks to Zsolt for testing, and 'Agent' for the patch.
AUTHOR
Lee Goddard (lgoddard -at- cpan -dot- org) after Marty Pauley.
COPYRIGHT AND LICENSE
Copyright (C) 2006 Lee Goddard. Parts Copyright (C) 2001, *Kasei*.
This program is free software; you can redistribute it and/or modify it
under the terms of either: a) the GNU General Public License; either
version 2 of the License, or (at your option) any later version. b) the
Perl Artistic License.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.