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require 5; package Pod::Simple::LinkSection; # Based somewhat dimly on Array::Autojoin use vars qw($VERSION ); $VERSION = '3.35'; use strict; use Pod::Simple::BlackBox; use vars qw($VERSION ); $VERSION = '3.35'; use overload( # So it'll stringify nice '""' => \&Pod::Simple::BlackBox::stringify_lol, 'bool' => \&Pod::Simple::BlackBox::stringify_lol, # '.=' => \&tack_on, # grudgingly support 'fallback' => 1, # turn on cleverness ); sub tack_on { $_[0] = ['', {}, "$_[0]" ]; return $_[0][2] .= $_[1]; } sub as_string { goto &Pod::Simple::BlackBox::stringify_lol; } sub stringify { goto &Pod::Simple::BlackBox::stringify_lol; } sub new { my $class = shift; $class = ref($class) || $class; my $new; if(@_ == 1) { if (!ref($_[0] || '')) { # most common case: one bare string return bless ['', {}, $_[0] ], $class; } elsif( ref($_[0] || '') eq 'ARRAY') { $new = [ @{ $_[0] } ]; } else { Carp::croak( "$class new() doesn't know to clone $new" ); } } else { # misc stuff $new = [ '', {}, @_ ]; } # By now it's a treelet: [ 'foo', {}, ... ] foreach my $x (@$new) { if(ref($x || '') eq 'ARRAY') { $x = $class->new($x); # recurse } elsif(ref($x || '') eq 'HASH') { $x = { %$x }; } # otherwise leave it. } return bless $new, $class; } # Not much in this class is likely to be link-section specific -- # but it just so happens that link-sections are about the only treelets # that are exposed to the user. 1; __END__ # TODO: let it be an option whether a given subclass even wants little treelets? __END__ =head1 NAME Pod::Simple::LinkSection -- represent "section" attributes of L codes =head1 SYNOPSIS # a long story =head1 DESCRIPTION This class is not of interest to general users. Pod::Simple uses this class for representing the value of the "section" attribute of "L" start-element events. Most applications can just use the normal stringification of objects of this class; they stringify to just the text content of the section, such as "foo" for C<< LZ<><Stuff/foo> >>, and "bar" for C<< LZ<><Stuff/bIZ<><ar>> >>. However, anyone particularly interested in getting the full value of the treelet, can just traverse the content of the treeleet @$treelet_object. To wit: % perl -MData::Dumper -e "use base qw(Pod::Simple::Methody); sub start_L { print Dumper($_[1]{'section'} ) } __PACKAGE__->new->parse_string_document('=head1 L<Foo/bI<ar>baz>>') " Output: $VAR1 = bless( [ '', {}, 'b', bless( [ 'I', {}, 'ar' ], 'Pod::Simple::LinkSection' ), 'baz' ], 'Pod::Simple::LinkSection' ); But stringify it and you get just the text content: % perl -MData::Dumper -e "use base qw(Pod::Simple::Methody); sub start_L { print Dumper( '' . $_[1]{'section'} ) } __PACKAGE__->new->parse_string_document('=head1 L<Foo/bI<ar>baz>>') " Output: $VAR1 = 'barbaz'; =head1 SEE ALSO L<Pod::Simple> =head1 SUPPORT Questions or discussion about POD and Pod::Simple should be sent to the pod-people@perl.org mail list. Send an empty email to pod-people-subscribe@perl.org to subscribe. This module is managed in an open GitHub repository, L<https://github.com/perl-pod/pod-simple/>. Feel free to fork and contribute, or to clone L<git://github.com/perl-pod/pod-simple.git> and send patches! Patches against Pod::Simple are welcome. Please send bug reports to <bug-pod-simple@rt.cpan.org>. =head1 COPYRIGHT AND DISCLAIMERS Copyright (c) 2004 Sean M. Burke. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. 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. =head1 AUTHOR Pod::Simple was created by Sean M. Burke <sburke@cpan.org>. But don't bother him, he's retired. Pod::Simple is maintained by: =over =item * Allison Randal C<allison@perl.org> =item * Hans Dieter Pearcey C<hdp@cpan.org> =item * David E. Wheeler C<dwheeler@cpan.org> =back =cut
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