kaitai - Interface design language

kaitai is an interface design language created in 2016 by Mikhail Yakshin.

Source code:

git clone https://github.com/kaitai-io/kaitai_struct

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Kaitai Struct is a YAML-based declarative language used to describe various binary data structures, laid out in files or in memory: i.e. binary file formats, network stream packet formats, etc. The main idea is that a particular format is described in Kaitai Struct language (.ksy file) and then can be compiled with ksc into source files in one of the supported programming languages. These modules will include a generated code for a parser that can read described data structure from a file / stream and give access to it in a nice, easy-to-comprehend API.

kaitai website
kaitai is developed on GitHub and has 3,040 stars
kaitai first developed in http://kaitai.io/
file extensions for kaitai include ksy
kaitai on Twitter
kaitai.io was registered in 2016
See also: (1 related languages)Protocol Buffers
Read more about kaitai on the web: 1.

Example from the web:

meta:
  id: tcp_segment
  endian: be
seq:
  - id: src_port
    type: u2
  - id: dst_port
    type: u2
  - id: seq_num
    type: u4
  - id: ack_num
    type: u4