JSON++ Sample

sample.jsonpp

{
  alphanumeric_field_needs_quotes: false,
  _leading_undderscores_ok: true,
  trailing_underscores_ok_: true,
  carriage_return_acts_like_comma: true
  "vanilla JSON keys also supported": true
  "a list with null element in at index 1": [0,,2,3,4,5]
  "a list with null element in at index 0": [,1,2,3,4,5]
  "a list with null final element": [0,1,2,3,4,]
  "empty list is interpreted as the empty list, not [null]": []
  // You can also add comments
  /* Multiline 
     comments
     /* can be nested */
  */
}