title: json parser Pharo 2.0
body: <p>I'm working with a webservice that returns data in JSON format and i'm pretty new at Pharo 2.0</p>
  
  <p>¿is there a good, simple and most of all reliable JSON parser?</p>
  
  <p>I saw the JSON parser example using PetitParser in the book "Pharo by example 2" (deep into pharo) but i don't know if it's just an illustrative example or something fully functional.</p>