Comment by bogwog

Haven't watched the full video, but this looks similar ImHex (https://imhex.werwolv.net/), which also includes a pattern language thing to describe the structure of data. I used it once for a project, and it was useful when it worked, although I ran into some limitations when trying to model container formats.

Maybe it could do that and I just couldn't figure it out at the time, but if you have say a zip file with different file formats, you couldn't tell the language to switch between different structures based on like an index or a header that tells you the format of a subsection. It was a limitation of the pattern language.

I wonder if GNU poke is more advanced in that regard? A tool like this would be super useful for debugging custom binary formats, but some formats can get pretty complex.