RTEMS_GDB clarification

[Dhananjay Balan]

Hi,

Need help with a code snippet. I cannot understand the need for 
"nesting" in the following.


> rtems.py line 33-47
> def lookup_function (val):
>     "Look-up and return a pretty-printer that can print val."
> 
>     global nesting
> 
>     typename = str(type_from_value(val))
> 
>     for function in pp_dict:
>         if function.search (typename):
>             nesting += 1
>             result = pp_dict[function] (val)
>             nesting -= 1
>             if nesting == 0:
>                 objects.information.invalidate()
>             return result
> 

Thanks,
Dhananjay
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