Per Doug’s post:
I have implemented an equivalent of the Python pack/unpack functions in PLT Scheme. I needed it primarily to be able to (more easily) read binary data from other applications for analysis in PLT Scheme.
Here is what it does:
This module performs conversions between PLT Scheme values and C structs represented as PLT Scheme byte strings. It uses format strings (explained below) as compact descriptions of the layout of the C structs and the intended conversion to/from PLT Scheme values. This can be used in handling binary data stored in files or from network connections, among other sources.