>> I find the #; construct very convenient for commenting out sexps, but in Dr >> Racket the visual cue of switching to comment-color is missing. >> >> Example (in Racket 6.12): >> >> [image: Screen Shot 2018-10-07 at 10.19.09 pm.png] >> >> Expected: >> >> *#lang racket* >> >> (display #|Comment|# >> ; comment >> #;(string-join "comm" "ent") >> "Hello world")
I have some sympathy for this view but I think that it is a misunderstanding. I think #; is rather distinct from #| ... |# and ;; It signals “the following is a code snippet that is currently not useful or not quite right but you should read it as code and with the structure of code in mind”. Here is a use that illustrates this. When I write untyped code, I strictly follow the design recipe (because I discovered that “do as I tell you not as I do” applies here too). For signatures, I write #; [ String String -> (U Number String) ] (define (f s t) (if (= (string-length t) 3) 0 s)) and such things. I want this signature to be readable as code when someone wishes to inject types into my code. Similar uses for code snippets abound in my repos too. — Matthias -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
