pep-3118 extended struct format parser

hi there,

at last scipy'08 sprint, somebody (apologies for my brain fade) was working on 
being able to parse the extended struct format string so one could do:

Nested structure
    ::

        struct {
             int ival;
             struct {
                 unsigned short sval;
                 unsigned char bval;
                 unsigned char cval;
             } sub;
        }
        """i:ival: 
           T{
              H:sval: 
              B:bval: 
              B:cval:
            }:sub:
        """
Nested array
    ::

        struct {
             int ival;
             double data[16*4];
        }
        """i:ival: 
           (16,4)d:data:
        """

is this available somewhere ?
(being it in pure python or fast-C implemented, I don't really care for the 
moment :) )

cheers,
sebastien.
--

-- 
#########################################
# Dr. Sebastien Binet
# Laboratoire de l'Accelerateur Lineaire
# Universite Paris-Sud XI
# Batiment 200
# 91898 Orsay
#########################################