URI::VersionRange::Constraint(3pm)

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
new

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

Create new URI::VersionRange::Constraint instance.

comparator

    $constraint->comparator

Return the comparator.

version

    $constraint->version

Return the version string.

to_string

    $vers->to_string

Stringify "vers" components.

to_human_string

    $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

TO_JSON

    $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"}

from_string

    $vers = URI::VersionRange::Constraint->from_string($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) 2022-2026 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.