parsing of json array objects

Question

i am trying to parse a json array,i am facing problem.

My array is like this:

configure: {"id":4,"userId":107,"deviceMacAddress":"00:06:66:30:02:3C","medication":

[{"id":11,"version":18,"name":"name1","unit":"mg","forMed":"for1","schedule":[1]},{"id":45,"version":1,"name":"sdga",,"unit":"mg","forMed":"54234","schedule":[0,1,2,3,4,5,6]}],

i am able to access medication array and print total array,but not able to access objects inside array. can you pls suggest any solution or any example to do this using C language?

stackoverflow.com/helpcenter/dont-ask - Stack Overflow is for asking objective questions. You need to read about either grammars or finite state machines. Or you can ask a specific question about code you've tried and tell us what it's not doing and how to fix a specific problem. Also, proper english is highly encouraged. "Text speak" is frowned upon. — xaxxon
– xaxxon, Commented Jun 7, 2013 at 4:21
Also, the most trivial google search returns obvious results: google.com/… — xaxxon
– xaxxon, Commented Jun 7, 2013 at 4:22
@Navnath what exactly do you mean? Just that it doesn't require a full-on CFG to describe? — xaxxon
– xaxxon, Commented Jun 7, 2013 at 4:27
@xaxxon I mean to say, the given JSON is syntactically incorrect. — Navnath Godse
– Navnath Godse, Commented Jun 7, 2013 at 4:31

xaxxon · Accepted Answer · 2013-06-07 04:31:27Z

I'll throw you a bone. When you find a sigil representing the beginning of an element in the text, call a function that knows how to handle that type of element - hash, array, string, number, etc (http://www.json.org/). Now how you want to handle things like a hash is up to you, and C makes it a bit difficult to store the different types of values easily, but basically in each section, you return the object representing that and it gets turned into a overall data structure representing the json you just parsed.

VERY pseudocode:

parseJson(char* json) {
  if json[0]=='['
    parseJsonArray(json+1)
  if json[0]=='{]
    parseJsonArray(json+1)
  if json[0]=='"'
    parseJsonString(json+1)
  ...etc...
}

parseJsonArray(char* json) {
  SomeSortOfList array = MakeListThing();
  while *json != ']' {
    if *json=='['
      push(array, parseJsonArray(json+1))
    if *json=='{'
      push(array, parseJsonHash(json+1))
    if *json=='"'
      push(array, parseJsonString(json+1))
  }
  return array
}

..and other functions..

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