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=over 2

=item Data paths, format

You can pass data paths to element(), keys() and values() in different formats.

Standard is the Perl-like format for Hashes/Arrays:

 my $path = "{'key1'}{'key2'}[2][1]";

If you are too busy to write all the brackets and braces, this will do ok:

 my $path = 'key1.key2.2.1';

If you choose not to use brackets/braces, hash keys have to contain at least one non-numerical character. Otherwise they will be taken as an array index - and will cause a non-fatal error plus warning.

Additionally you can define an arbitrary delimiter to separate keys/indices - quite useful, if the . occurs within a hash key:

 my $path = "#key1#key2#2#1";

Note: