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NAME
Set::Crontab - Expand crontab(5)-style integer lists
SYNOPSIS
$s = Set::Crontab->new("1-9/3,>15,>30,!23", [0..30]);
if ($s->contains(3)) { ... }
DESCRIPTION
Set::Crontab parses crontab-style lists of integers and defines
some utility functions to make it easier to deal with them.
Syntax
Numbers, ranges, *, and step values all work exactly as described
in the crontab(5) manpage. A few extensions to the standard syntax
are described below.
< and >
<N selects the elements smaller than N from the entire range,
and adds them to the set. >N does likewise for elements larger
than N.
!
!N excludes N from the set. It applies to the other specified
range; otherwise it applies to the specified ranges (i.e. "!3"
with a range of "1-10" corresponds to "1-2,4-10", but ">3,!7" in
the same range means "4-6,8-10").
Functions
new($spec, [@range])
Creates a new Set::Crontab object and returns a reference to it.
contains($num)
Returns true if `$num' exists in the set.
list()
Returns the expanded list corresponding to the set.
The functions described above croak if they are called with
incorrect arguments.
SEE ALSO
The crontab(5) manpage.
AUTHOR
Abhijit Menon-Sen <ams@toroid.org>
Copyright 2001 Abhijit Menon-Sen <ams@toroid.org>
This module is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
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