package Catmandu::Fix::expand;
use Catmandu::Sane;
use Moo;
use CGI::Expand ();
use Catmandu::Fix::Has;
has sep => (fix_opt => 1, default => sub { undef });
sub fix {
my ($self,$data) = @_;
if (defined(my $char = $self->sep)) {
my $new_ref = {};
for my $key (keys %$data) {
my $val = $data->{$key};
$key =~ s{$char}{\.}g;
$new_ref->{$key} = $val;
}
$data = $new_ref;
}
CGI::Expand->expand_hash($data);
}
=head1 NAME
Catmandu::Fix::expand - convert a flat hash into nested data using the TT2 dot convention
=head1 SYNOPSIS
# collapse the data into a flat hash
collapse()
# expand again to the nested original
expand()
# optionally provide a path separator
collapse(-sep => '/')
expand(-sep => '/')
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;