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| Crontab(3) | User Contributed Perl Documentation | Crontab(3) |
NAME
Set::Crontab - Expand crontab(5)-style integer listsSYNOPSIS
$s = Set::Crontab->new("1-9/3,>15,>30,!23", [0..30]);if ($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 crontab(5). 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. Elements are in ascending order.
The functions described above croak if they are called with incorrect arguments.
SEE ALSO
crontab(5)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.
| 2010-05-08 | perl v5.32.1 |
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