xr: A new weapon for your regex arsenal – Emacs Notes
This looks seriously handy: take a regular expression, throw it at this tool, and get an rx expression out of the other side!
"In order to increase fluency in a programming language, one has to read a lot of it. But how can you read a lot of it if you don't know what it means?
In this article, instead of focusing on one or two concepts, I'll try to go through as many Rust snippets as I can, and explain what the keywords and symbols they contain mean."