Boost.Spirit

Boost.Spirit is a C++ library that allows programmers to write code for parsing and interpreting text directly within their programs. Think of it as a way to create custom "reading rules" that can understand complex data formats, like programming languages, configuration files, or protocols, without writing extensive manual code. It uses a flexible, declarative syntax that makes defining how the text should be processed more intuitive. Essentially, Boost.Spirit enables developers to embed language-like parsing logic into their software, making data extraction more efficient and code easier to maintain.