Reading struct with structs

[Baillargeon, Sonny]

I am trying to read in a C struct file that contains sub-structs as part
as the data definition. For example:
int a /* 4 bytes */
int_t b /* custom struct */
blah_t c /* custom struct */
bing_t d /* custom struct */

The custom structs are arbitrary. The struct module only allows me to
have strict C datatypes. How can I read in a struct recursively given I
have to feed the struct.unpack?

Thanks,
Sonny
<FONT SIZE = 1>************************************************ ****************************
This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Anydissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer.</FONT>

[Alex Martelli]

Baillargeon, Sonny <So***************@bmonb.com> wrote:

I am trying to read in a C struct file that contains sub-structs as part
as the data definition. For example:
int a /* 4 bytes */
int_t b /* custom struct */
blah_t c /* custom struct */
bing_t d /* custom struct */

The custom structs are arbitrary. The struct module only allows me to
have strict C datatypes. How can I read in a struct recursively given I
have to feed the struct.unpack?

You need to know how the various "custom structs" are made, in detail --
if you don't it's impossible to read that file, of course. Now, just
insert the formatstring for the various fields of each "custom struct"
in place of the "custom struct" in the overall formatstring.
Alex