man Set::Crontab () - Expand crontab(5)-style integer lists

NAME

Set::Crontab - Expand crontab(5)-style integer lists

$s = Set::Crontab->new(1-9/3,>15,>30,!23, [0..30]);

if ($s->contains(3)) { ... }

Set::Crontab parses crontab-style lists of integers and defines some utility functions to make it easier to deal with them.

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).

new($spec, [@range]): Creates a new Set::Crontab object and returns a reference to it.
contains($num): Returns true if CW$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.

Abhijit Menon-Sen <ams@wiw.org>

This software is distributed under the terms of the Artistic License <URL:http://ams.wiw.org/code/artistic.txt>.