My comment wasn't meant to disrespect your work, or make it look like a simple task to achieve.
The GP comment said that Rust is nice because you can write libraries that can be bound to other languages with more runtime. I was highlighting that this property sounds nice in theory, but has a small scope of applicability in practice. A regex library fits the small scope.
> but has a small scope of applicability in practice
I disagree. It's a critical tool for adopting Rust libraries in projects that are otherwise C or C++ or Python or Go or Java or ..., for example. The scope is pretty vast.
The GP comment said that Rust is nice because you can write libraries that can be bound to other languages with more runtime. I was highlighting that this property sounds nice in theory, but has a small scope of applicability in practice. A regex library fits the small scope.