I just wanted to say that I think you're doing great work here! Obviously everyone has their own motivations for doing open source work, and yours are clearly t

I just wanted to say that I think you're doing great work here! Obviously everyone has their own motivations for doing open source work, and yours are clearly to work in Rust and contribute to the Rust community while also scratching some personal itches. Honestly, I'm not sure that trying to contribute to grep would even be worthwhile. You've got a few cases where ripgrep is faster than grep, but to submit patches to grep to fix it for those cases would be an enormous amount of effort, and either require you to rewrite a whole bunch of Rust code in C or the grep maintainers to accept patches in Rust, neither of which seem like great ideas. What you have done is advance the state of the art in search tools, as well as provide lots of building blocks to the Rust community for other developers to get great behavior out of their own programs. (Incidentally this is one thing I love about Rust--it's very straightforward for someone to write a crate that implements something in an extremely optimized way but still presents an easy-to-use API for other developers.) I haven't had an opportunity to use many of your crates in my Rust development yet (except byteorder!) but I'm excited that they exist and I can definitely see myself using them in the future.