Grammars Alternatives

Similar projects and alternatives to Grammars

nom

85 9,007 6.5 Rust Grammars VS nom

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80 3,743 9.4 C Grammars VS wuffs

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Kaitai Struct

44 3,830 7.5 Shell Grammars VS Kaitai Struct

Kaitai Struct: declarative language to generate binary data parsers in C++ / C# / Go / Java / JavaScript / Lua / Nim / Perl / PHP / Python / Ruby
binrw

3 479 8.2 Rust Grammars VS binrw

A Rust crate for helping parse and rebuild binary data using ✨macro magic✨.
hachoir

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3 345 3.2 Go Grammars VS restruct

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FortniteReplayDecompressor

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smm2-documentation

1 38 0.0 Grammars VS smm2-documentation

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better Grammars alternative or higher similarity.

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Grammars reviews and mentions

Posts with mentions or reviews of Grammars. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-03-17.

Kaitai Struct: A new way to develop parsers for binary structures
12 projects | news.ycombinator.com | 17 Mar 2022

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 liked how Kaitai Struct allows easy definition of constraints (simple ones at least) into the file format specification so that you can say "this section of the file shall have a size not exceeding header.length * 2 bytes".
Some alternative binary file format specification attempts for those interested in seeing alternatives, each with their own set of problems/pros/cons:
1. 010 Editor [4]
2. Synalysis [5]
3. hachoir [6]
4. DFDL [7]
[1] https://github.com/kaitai-io/kaitai_struct/issues/158
[2] https://github.com/kaitai-io/kaitai_struct/issues/156
[3] https://raw.githubusercontent.com/davidhicks/kaitai_struct_f...
[4] https://www.sweetscape.com/010editor/repository/templates/
[5] https://github.com/synalysis/Grammars
[6] https://github.com/vstinner/hachoir/tree/main/hachoir/parser
[7] https://github.com/DFDLSchemas/