CPAN::...::Range(3perl) Perl Programmers Reference GuideCPAN::...::Range(3perl)
NAME
CPAN::Meta::Requirements::Range - a set of version requirements for a
CPAN dist
VERSION
version 2.143
SYNOPSIS
use CPAN::Meta::Requirements::Range;
my $range = CPAN::Meta::Requirements::Range->with_minimum(1);
$range = $range->with_maximum('v2.2');
my $stringified = $range->as_string;
DESCRIPTION
A CPAN::Meta::Requirements::Range object models a set of version
constraints like those specified in the META.yml or META.json files in
CPAN distributions, and as defined by CPAN::Meta::Spec; It can be built
up by adding more and more constraints, and it will reduce them to the
simplest representation.
Logically impossible constraints will be identified immediately by
thrown exceptions.
METHODS
with_string_requirement
$req->with_string_requirement('>= 1.208, <= 2.206');
$req->with_string_requirement(v1.208);
This method parses the passed in string and adds the appropriate
requirement. A version can be a Perl "v-string". It understands
version ranges as described in the "Version Ranges" in CPAN::Meta::Spec.
For example:
1.3
>= 1.3
<= 1.3
== 1.3
!= 1.3
> 1.3
< 1.3
>= 1.3, != 1.5, <= 2.0
A version number without an operator is equivalent to specifying a
minimum (">="). Extra whitespace is allowed.
with_range
$range->with_range($other_range)
This creates a new range object that is a merge two others.
with_exact_version
$range->with_exact_version( $version );
This sets the version required to exactly the given version. No other
version would be considered acceptable.
This method returns the version range object.
with_minimum
$range->with_minimum( $version );
This adds a new minimum version requirement. If the new requirement is
redundant to the existing specification, this has no effect.
Minimum requirements are inclusive. $version is required, along with
any greater version number.
This method returns the version range object.
with_maximum
$range->with_maximum( $version );
This adds a new maximum version requirement. If the new requirement is
redundant to the existing specification, this has no effect.
Maximum requirements are inclusive. No version strictly greater than
the given version is allowed.
This method returns the version range object.
with_exclusion
$range->with_exclusion( $version );
This adds a new excluded version. For example, you might use these
three method calls:
$range->with_minimum( '1.00' );
$range->with_maximum( '1.82' );
$range->with_exclusion( '1.75' );
Any version between 1.00 and 1.82 inclusive would be acceptable, except
for 1.75.
This method returns the requirements object.
as_struct
$range->as_struct( $module );
This returns a data structure containing the version requirements. This
should not be used for version checks (see "accepts_module" instead).
as_string
$range->as_string;
This returns a string containing the version requirements in the format
described in CPAN::Meta::Spec. This should only be used for
informational purposes such as error messages and should not be
interpreted or used for comparison (see "accepts" instead).
accepts
my $bool = $range->accepts($version);
Given a version, this method returns true if the version specification
accepts the provided version. In other words, given:
'>= 1.00, < 2.00'
We will accept 1.00 and 1.75 but not 0.50 or 2.00.
is_simple
This method returns true if and only if the range is an inclusive
minimum -- that is, if their string expression is just the version
number.
AUTHORS
• David Golden <dagolden@cpan.org>
• Ricardo Signes <rjbs@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2010 by David Golden and Ricardo Signes.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
perl v5.40.1 2026-08-30 CPAN::...::Range(3perl)
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