Software::Copyright::Statement - a copyright statement for one owner

       Dominique Dumont

       The constructor can be called without argument or with a string containing:

       •   a year range (optional)

       •   a name (mandatory)

       •   an email address (optional)

       E.g:

        my $st = Software::Copyright::Statement->new();
        my $st = Software::Copyright::Statement->new('2002, Joe <joe@example.com>');

       This software is Copyright (c) 2022 by Dominique Dumont <dod@debian.org>.

       This is free software, licensed under:

         The GNU General Public License, Version 3, June 2007

perl v5.40.1                                       2025-04-07                Software::Copyright::Statement(3pm)

       This class holds one copyright statement, i.e. year range, name and email of one copyright contributor.

       On construction, a cleanup is done to make the statement more standard. Here are some cleanup example:

        2002-6 Joe => 2002-2006, Joe
        2001,2002,2003,2004 Joe => 2001-2004, Joe
        # found in markdown documents
        2002 Joe mailto:joe@example.com => 2002, Joe <joe@example.com>

name
       Set or get owner's name

   email
       Set or get owner's name

   owner
       Returns a Software::Copyright::Owner object. This object can be used as a string.

   merge
       Merge 2 statements. Note that the 2 statements must belong to the same owner (the name attributes must be
       identical).

       See the Synopsis for an example.

       This method returns $self

   add_years
       Add  a  year  range  to  the  copyright owner. This method accepts year ranges like "2020", "2018, 2020",
       "2016-2020,2022". White spaces are ignored.

       This method returns $self

   stringify
       Returns a string containing a year range (if any), a name and email (if any) of the copyright owner.

   contains
       Return 1 if the other statement is contained in current statement, i.e. owner or record are identical and
       other year range is contained in current year range.

       For instance:

       •   "2016, Joe" is contained in "2014-2020, Joe"

       •   "2010, Joe" is not contained in "2014-2020, Joe"

   Operatoroverload
       Operator "" is overloaded to call "stringify".

       Software::Copyright::Statement - a copyright statement for one owner

        use Software::Copyright::Statement;

        my $statement = Software::Copyright::Statement->new('2020,2021, Joe <joe@example.com>');

        $statement->name; # => is "Joe"
        $statement->email; # => is 'joe@example.com'
        $statement->range; # => is '2020, 2021'

        # merge records
        $statement->merge(Software::Copyright::Statement->new('2022, Joe <joe@example.com>'));
        $statement->range; # => is '2020-2022'

        # update the year range
        $statement->add_years('2015, 2016-2019')->stringify; # => is '2015-2022, Joe <joe@example.com>'

        # stringification
        my $string = "$statement"; # => is '2015-2022, Joe <joe@example.com>'

        # test if a statement "contains" another one
        my $st_2020 = Software::Copyright::Statement->new('2020, Joe <joe@example.com>');
        $statement->contains($st_2020); # => is '1'

       version 0.015