Top 4 C++ parser-combinator Projects

PEGTL

2 1,766 0.0 C++

Parsing Expression Grammar Template Library

Project mention: Show HN: Matcheroni, a tiny C++20 header library for building lexers/parsers | news.ycombinator.com | 2023-07-06

Very cool, and I like the name!
I'd be interested in reading about how Matcheroni compares with PEGTL and Lexy.
https://github.com/taocpp/PEGTL
lexy

6 857 0.0 C++

C++ parsing DSL

Project mention: Show HN: Matcheroni, a tiny C++20 header library for building lexers/parsers | news.ycombinator.com | 2023-07-06
Mergify

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spirit

1 361 0.0 C++

Boost.org spirit module

Project mention: How does an experienced programmer go about learning new languages such as C++. | /r/cpp | 2022-11-26

Oh, one project that I learned a lot of modern C++ from was, https://github.com/boostorg/spirit, I wanted to build a faster org-mode parser. I built at best a working prototype, but ended up learning a lot about how templates. It is also a header only library. If you want to avoid some administrative work, linking, choosing a build system, .... I figured it might be helpful.
hspp

1 148 0.0 C++

hspp: An experimental library to bring Haskell Style Programming to C++.

Project mention: Chromium accepting Rust in a clear move to copy what Mozilla have done, replace C++ source code | /r/cpp | 2023-01-12

Yeah, C++ supports higher kinded types through template templates (I'm not sure why the other poster said it doesn't), however it quickly becomes messy and impractical. Here's a cursed library that attempts to support Haskell-style programming in C++. Here's an example where they implement a monad transformer using the only example of a template template template that I have ever seen in the wild.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-07-06.