NAME

URI::VersionRange::Constraint - Version Constraint for Version Range Specification

SYNOPSIS

use URI::VersionRange::Constraint;

# OO-interface

$constraint = URI::VersionRange::Constraint->new(
  comparator => '>',
  version    => '2.00'
);

say $constraint; # >2.00

# Parse "vers" string
$constraint = URI::VersionRange::Constraint->from_string('>2.00');

DESCRIPTION

A version range specifier (aka. "vers") is a URI string using the vers URI-scheme with this syntax:

vers:<versioning-scheme>/<version-constraint>|<version-constraint>|...

vers is the URI-scheme and is an acronym for "VErsion Range Specifier".

The pipe "|" is used as a simple separator between version-constraint. Each version-constraint in this pipe-separated list contains a comparator and a version:

<comparator:version>

This list of version-constraint are signposts in the version timeline of a package that specify version intervals.

A version satisfies a version range specifier if it is contained within any of the intervals defined by these version-constraint.

https://github.com/package-url/purl-spec

OBJECT-ORIENTED INTERFACE

$constraint = URI::VersionRange::Constraint->new( comparator => STRING, version => STRING )

Create new URI::VersionRange::Constraint instance.

$constraint->comparator

Return the comparator.

$constraint->version

Return the version string.

$vers->to_string

Stringify vers components.

$vers->to_human_string

Convert the constraint into human-readable format.

$constraint = URI::VersionRange::Constraint->new(
    comparator => '>=',
    version    => '2.10'
);

say $constraint->to_human_string; # greater than or equal 2.10

$vers->TO_JSON

Helper method for JSON modules (JSON, JSON::PP, JSON::XS, Mojo::JSON, etc).

use Mojo::JSON qw(encode_json);

say encode_json($constraint);  # {"comparator":">","version":"2.00"}

$vers = URI::VersionRange::Constraint->from_string($vers_string);

Converts the given "constraint" string to URI::VersionRange::Constraint object. Croaks on error.

SUPPORT

Bugs / Feature Requests

Please report any bugs or feature requests through the issue tracker at https://github.com/giterlizzi/perl-URI-PackageURL/issues. You will be notified automatically of any progress on your issue.

Source Code

This is open source software. The code repository is available for public review and contribution under the terms of the license.

https://github.com/giterlizzi/perl-URI-PackageURL

git clone https://github.com/giterlizzi/perl-URI-PackageURL.git

AUTHOR

• Giuseppe Di Terlizzi <gdt@cpan.org>

LICENSE AND COPYRIGHT

This software is copyright (c) 2022-2024 by Giuseppe Di Terlizzi.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.