Question about the perl representation of false

[le-garff-yoann]

Is it possible to ensure that the parser translates false into 0 instead of an empty string ?

[perlpunk]

The empty string is perl's default false value, so I don't think there will be an option to support 0.

Starting with YAML::XS 0.66_001, you can use this:

local $YAML::XS::Boolean = "JSON::PP"; # or "boolean"
my $data = Load("booltrue: true");
$data->{boolfalse} = JSON::PP::false;
my $yaml = Dump($data);
# boolfalse: false
# booltrue: true

See more about this in the docs. Maybe this helps you as the string value of JSON::PP::Boolean and boolean.pm false objects is 0.

I will close this issue when YAML::XS 0.67 is released, unless there are further questions.