Help on `?` (for getting a character's codepoint)

[dmarcoux]

Cool, I’ll put the same link pinned to the latest commit SHA so others can refer to this at a later date if the file changes one day:

https://github.com/elixir-lang/elixir/blob/3b90a793fca04869cf90add0fd7144ece52f9dba/lib/elixir/src/elixir_tokenizer.erl#L233-L274