1.1 --- a/libraries/json/json.c	Wed Jul 30 22:56:21 2014 +0200
     1.2 +++ b/libraries/json/json.c	Wed Jul 30 23:11:38 2014 +0200
     1.3 @@ -4,7 +4,14 @@
     1.4  #include <string.h>
     1.5  
     1.6  // maximum number of nested JSON values (objects and arrays):
     1.7 -#define JSON_MAXDEPTH 100
     1.8 +// NOTE: The Lua reference states that the stack may typically contain at least
     1.9 +//       "a few thousand elements". Since every nested level consumes
    1.10 +//       3 elements on the Lua stack (the object/array, its shadow table,
    1.11 +//       a string key or a placeholder), we limit the number of nested levels
    1.12 +//       to 500. If a stack overflow would still happen in the import function,
    1.13 +//       this is detected nevertheless and an error is thrown (instead of
    1.14 +//       returning nil and an error string).
    1.15 +#define JSON_MAXDEPTH 500
    1.16  
    1.17  // macros for usage of Lua registry:
    1.18  #define JSON_REGENT char