ruby-json-pure 2.0.2+dfsg-3 (i386 binary) in ubuntu zesty

 This is purely ruby implementation of the RFC 7159 JSON specification. It
 relies on the ruby standard library iconv and stringscan extensions. You can
 think of it as a low fat alternative to XML, if you want to store data to disk
 or transmit it over a network rather than use a verbose markup language.