Parse::FieldPath 0.004

Parse::FieldPath is a Perl module that parses an XPath inspired field list and extracts those fields from an object hierarchy.

Based on the "fields" parameter for the Google+ API: http://developers.google.com/+/api/

SYNOPSIS

Say you have an object, with some sub-objects, that's initialized like this:

 my $cow = Cow->new();
 $cow->color("black and white");
 $cow->tail(Cow::Tail->new(floppy => 1));
 $cow->mouth(Cow::Tounge->new(
 tounge => Cow::Tounge->new,
 teeth => Cow::Teeth->new,
 );

And you want a hash containing some of those fields (perhaps to pass to JSON::XS, or something). Then you can do this:

 use Parse::FieldPath qw/extract_fields/;

 my $cow_hash = extract_fields($cow, "color,tail/floppy");
 # $cow_hash is now:
 # {
 # color => 'black and white',
 # tail => {
 # floppy => 1,
 # }
 # }


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Requirements:

· Perl