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.\" ========================================================================
.\"
.IX Title "Crontab 3pm"
.TH Crontab 3pm "2021-01-04" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Set::Crontab \- Expand crontab(5)\-style integer lists
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\f(CW$s\fR = Set::Crontab\->new(\*(L"1\-9/3,>15,>30,!23\*(R", [0..30]);
.PP
if ($s\->\fBcontains\fR\|(3)) { ... }
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Set::Crontab parses crontab-style lists of integers and defines some
utility functions to make it easier to deal with them.
.SS "Syntax"
.IX Subsection "Syntax"
Numbers, ranges, *, and step values all work exactly as described in
\&\fBcrontab\fR\|(5). A few extensions to the standard syntax are described
below.
.IP "< and >" 4
.IX Item "< 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.
.IP "!" 4
!N excludes N from the set. It applies to the other specified 
range; otherwise it applies to the specified ranges (i.e. \*(L"!3\*(R" with a
range of \*(L"1\-10\*(R" corresponds to \*(L"1\-2,4\-10\*(R", but \*(L">3,!7\*(R" in the same range
means \*(L"4\-6,8\-10\*(R").
.SS "Functions"
.IX Subsection "Functions"
.IP "new($spec, [@range])" 4
.IX Item "new($spec, [@range])"
Creates a new Set::Crontab object and returns a reference to it.
.IP "contains($num)" 4
.IX Item "contains($num)"
Returns true if \f(CW$num\fR exists in the set.
.IP "\fBlist()\fR" 4
.IX Item "list()"
Returns the expanded list corresponding to the set. Elements are in
ascending order.
.PP
The functions described above croak if they are called with incorrect
arguments.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBcrontab\fR\|(5)
.SH "AUTHOR"
.IX Header "AUTHOR"
Abhijit Menon-Sen <ams@toroid.org>
.PP
Copyright 2001 Abhijit Menon-Sen <ams@toroid.org>
.PP
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.