I compressed thousands of files, went through libarchive's and Sembiance's test data at least for the decompressor side. I recompressed the files, and round-tripped them against 7zip, unrar, every later version of winrar.
It failed a lot at the start, and codex burned a lot of tokens instrumenting the binaries and dividing and conquering until things settled down and round-trips worked properly.
I can't really say it works in every case as I honestly didn't spend that much time on it. But it works in the majority of cases. There's likely some nasty bugs hiding in there.
alt Hacker News
I compressed thousands of files, went through libarchive's and Sembiance's test data at least for the decompressor side. I recompressed the files, and round-tripped them against 7zip, unrar, every later version of winrar. It failed a lot at the start, and codex burned a lot of tokens instrumenting the binaries and dividing and conquering until things settled down and round-trips worked properly.
I can't really say it works in every case as I honestly didn't spend that much time on it. But it works in the majority of cases. There's likely some nasty bugs hiding in there.