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.

perl v5.40.1                                       2025-07-04                 URI::VersionRange::Constraint(3pm)