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package Forest::Tree::Reader::SimpleTextFile;
use Moose;
our $VERSION = '0.09';
our $AUTHORITY = 'cpan:STEVAN';
use Forest::Tree::Builder::SimpleTextFile;
with qw(Forest::Tree::Reader Forest::Tree::Constructor); # see new_subtree_callback below
# FIXME these are for compat... remove them?
has 'tab_width' => (
is => 'rw',
isa => 'Int',
default => 4
);
has 'parser' => (
is => 'rw',
isa => 'CodeRef',
lazy => 1,
builder => 'build_parser',
);
sub build_parser {
return sub {
my ($self, $line) = @_;
my ($indent, $node) = ($line =~ /^(\s*)(.*)$/);
my $depth = ((length $indent) / $self->tab_width);
return ($depth, $node);
}
}
sub parse_line { $_[0]->parser->(@_) }
# compat endscreate_new_subtree(@_);},
sub read {
my ($self, $fh) = @_;
my $builder = Forest::Tree::Builder::SimpleTextFile->new(
tree_class => ref( $self->tree ),
tab_width => $self->tab_width,
parser => $self->parser,
fh => $fh,
# since it's possible to subclass reader and implement this method, we
# include Forest::Tree::Constructor into this class as well, and make
# the builder use that definition (which under normal circumstances
# will be the same, Forest::Tree::Constructor::create_new_subtree)
new_subtree_callback => sub {
my ( $builder, @args ) = @_;
$self->create_new_subtree(@args);
},
);
$self->tree->add_child($_) for @{ $builder->subtrees };
}
__PACKAGE__->meta->make_immutable;
no Moose; 1;
__END__
=pod
=head1 NAME
Forest::Tree::Reader::SimpleTextFile - A reader for Forest::Tree heirarchies
=head1 DESCRIPTION
B<This module is deprecated>. You should use L<Forest::Tree::Builder::SimpleTextFile> instead.
This reads simple F<.tree> files, which are basically the tree represented
as a tabbed heirarchy.
=head1 ATTRIBUTES
=over 4
=item I<tab_width>
=back
=head1 METHODS
=over 4
=item B<read ($fh)>
=item B<build_parser>
=item B<create_new_subtree (%options)>
=back
=head1 BUGS
All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
=head1 AUTHOR
Stevan Little E<lt>stevan.little@iinteractive.comE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright 2008-2010 Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
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