I'm trying to post my solution and I keep getting an error from anti-chit - You cannot do that. What exactly can't I do, what do I need to fix? I'm tired of playing the guessing game. These rules should be clearly spelled out. I realize it probably doesn't like some of the naming in my code, but I shouldn't have to guess, the error should clearly tell me what needs to be changed. JSON.parse and eval I understandably don't use.

Prolog translation

At least in Haskell, "valid ones" section of random tests generates numbers with exponent and expects the user to parse them, which contradicts the description. Example (note -3.458508438120589e-2 near the very end):

["[4",[{"p3sf":[{";bw(":null,"x6)zv":"z},"},[":[gw}",null],null,{"o4":"[pz","p25'":null}],"s}2":"y63","gs;":{"8t.ui":null,";4p":"kq(0","c":{"7":false,"j99":["a",false,null,[[true,"l",[36.58830218136235,{"mcw-":"0"}],"5",null],{"w.b":true},null,{"u":63.98380597025043," n":true,"][g'.":[[{"{j8g":[{"30oc":-25.68867089613157,"]9p":-78.98615392191253,";ir6q":[],"4]; ":false}],"::":null}],null],"y( ":-75.11152108324292,"(":{"h,9eb":null}}]]},"9p'":"g"}},[[true,[{"r7:":null}]],null,{";w0eo":"(7k","2(3b":80.80835504387433,"6":{"]":null,"273 ":null,"my)":{"m6bqn":null,"}7":"8",";y":{"a3":false,"g9":"1b"},"ie3]n":true}}},{},"1nyf-"],[-3.458508438120589e-2]],null]

js at least: missing a fixed test with a string beginning with a whitespace. Fortunately, it appears frequently in the random tests, but having it in the fixed tests would be more comfortable. Increasing a bit the number of random tests would be a good idea too, to be sure tha nobody can slip through the tests.

And neither the grammar nor the description mentions whitespace should be ignored.

Otherwise stated: the "grammar" does not differentiate clearly between terminal and non-terminal symbols.

Needs random tests

This kata is now uncompletable because test framework is dependent on JSON.stringify.