escapes inside filter

[davewood]

the different behaviour of single and double quotes inside of a filter is confusing to me and https://metacpan.org/pod/Data::DPath#Special-characters didnt entirely clear it up to us.

#!/usr/bin/env perl
use 5.018;
use warnings;
use Data::DPath 'dpath';

my $data = { foo => 'aaa[bbb/ccc]ddd' };

match( $data, q!/foo[value eq 'aaa\[bbb/ccc\]ddd']! );
match( $data, q!/foo[value eq 'aaa[bbb/ccc]ddd']! );
match( $data, q!/foo[value eq "aaa\\[bbb/ccc\\]ddd"]! );

sub match {
    my ($input_pl, $query_path) = @_;
    my $dpath = Data::DPath::Path->new( path => $query_path );
    my @result = $dpath->match($input_pl);
    say $query_path;
    say scalar @result ? 'match' : 'no match';
}

perl dpath.pl 
/foo[value eq 'aaa\[bbb/ccc\]ddd']
no match
/foo[value eq 'aaa[bbb/ccc]ddd']
no match
/foo[value eq "aaa\[bbb/ccc\]ddd"]
match

[renormalist]

I see your point and agree it looks strange. Though, I don't have an answer right now. Data::DPath uses Text::Balanced - maybe we can find hints in that documentation; I need to dive deeper into this.

[renormalist]

I wonder if #18 is related to this problem and might even fix this. I appreciate any help from whoever uses it and is also confused.

[Madskill]

Sorry! It is different problems...