miniblog.

@krinkle A surprising number of PL design workarounds are "just add another equals sign" 🙃

In LSP, a position is represented as a line number and a column offset (in Unicode code units): https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#position This is pretty elegant. You'll get the correct line regardless of encoding bugs, and the editor already knows the line number so it's cheap to compute.

Today I learnt that Racket *intentionally* doesn't have a traditional REPL workflow. The authors were concerned about students not understanding the state between the current session and the code on disk. (Arguably Jupyter has some of these features now.) https://blog.racket-lang.org/2009/03/the-drscheme-repl-isnt-the-one-in-emacs.html