[carom]

My dream for a parsing library / language is that it would be able to read, manipulate, and then re-serialize the data. I'm sure there are a ton of edge cases there, but the round trip would be so useful for fuzzing and program analysis.

[jaxefayo]

From what I’ve read, kaitai does that now. For the longest time it could only parse, but I believe now it can generate/serialize.