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# Copyright (C) 2021 Felix Lechner
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, you can find it on the World Wide
# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
package Lintian::Output::Grammar;
use v5.20;
use warnings;
use utf8;
use Const::Fast;
use Moo::Role;
use namespace::clean;
const my $EMPTY => q{};
const my $SPACE => q{ };
const my $COMMA => q{,};
=head1 NAME
Lintian::Output::Grammar - sentence helpers
=head1 SYNOPSIS
use Lintian::Output::Grammar;
=head1 DESCRIPTION
Helps with human readable output.
=head1 INSTANCE METHODS
=over 4
=item oxford_enumeration
=cut
sub oxford_enumeration {
my ($self, $conjunctive, @alternatives) = @_;
return $EMPTY
unless @alternatives;
# remove and save last element
my $final = pop @alternatives;
my $maybe_comma = (@alternatives > 1 ? $COMMA : $EMPTY);
my $text = $EMPTY;
$text = join($COMMA . $SPACE, @alternatives) . "$maybe_comma $conjunctive "
if @alternatives;
$text .= $final;
return $text;
}
=back
=cut
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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