use TestML -run,
-bridge => 't::TestML_JSONY';
# $Pegex::Parser::Debug = 1;
__DATA__
%TestML 1.0
# Make sure these strings do not parse as JSONY.
*jsony.jsony_decode.Catch.OK;
=== Comma in bareword
--- jsony: { url: http://foo.com,2012 }
=== Unmatched [
--- jsony: foo[bar