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package Mail::AuthenticationResults::Token::Comment; # ABSTRACT: Class for modelling AuthenticationResults Header parts detected as comments require 5.008; use strict; use warnings; our $VERSION = '2.20230112'; # VERSION use Carp; use base 'Mail::AuthenticationResults::Token'; sub is { my ( $self ) = @_; return 'comment'; } sub parse { my ($self) = @_; my $header = $self->{ 'header' }; my $value = q{}; my $depth = 0; my $first = substr( $header,0,1 ); if ( $first ne '(' ) { croak 'Not a comment'; } while ( length $header > 0 ) { my $first = substr( $header,0,1 ); $header = substr( $header,1 ); $value .= $first; if ( $first eq '(' ) { $depth++; } elsif ( $first eq ')' ) { $depth--; last if $depth == 0; } } if ( $depth != 0 ) { croak 'Mismatched parens in comment'; } $value =~ s/^\(//; $value =~ s/\)$//; $self->{ 'value' } = $value; $self->{ 'header' } = $header; return; } 1; __END__ =pod =encoding UTF-8 =head1 NAME Mail::AuthenticationResults::Token::Comment - Class for modelling AuthenticationResults Header parts detected as comments =head1 VERSION version 2.20230112 =head1 DESCRIPTION Token representing a comment =head1 AUTHOR Marc Bradshaw <marc@marcbradshaw.net> =head1 COPYRIGHT AND LICENSE This software is copyright (c) 2021 by Marc Bradshaw. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =cut