Grammars

There's a metric ton of them by now. Here's incomplete notes from a couple of years ago: ### kaitai - https://github.com/kaitai-io/kaitai_struct - https://github.com/kaitai-io/awesome-kaitai - http://formats.kaitai.io/dos_datetime/index.html ### Hexinator / Synalyze It! - Universal Parsing Engine - Hexinator is freemium version of Synalyze It! - https://github.com/synalysis/Grammars/blob/master/bitmap.gra... ### quickbms - http://aluigi.altervista.org/quickbms.htm ## multiex - http://multiex.xentax.com/ ### Game Extractor by WATTO - http://www.watto.org/game_extractor.html ### 010 editor templates - https://www.sweetscape.com/010editor/repository/templates/ ### hex fiend templates - https://github.com/HexFiend/HexFiend/tree/master/templates ### malcat - has some form of binary templates - https://malcat.fr/ ### Andys Binary Fo

I contributed a number of file formats a few years ago (and attempted numerous others) but ran into a number of problems with certain file formats: 1. It's not possible to read from the file until a multiple byte termination sequence is detected. [1] 2. You can't read sections of a file where the termination condition is the presence of a sequence of bytes denoting the next unrelated section of the file (and you don't want to consume/read these bytes) [2] 3. The WebIDE at the time couldn't handle very large file format specifications such as Photoshop (PSD) [3] 4. Files containing compressed or encrypted sections require a compression/encryption algorithm to be hardcoded into Kaitai struct libraries for each programming language it can output to. The WebIDE I particularly liked as it makes it easy to get started and share results. I also