Add snippets for Racket

[codingbum]

A few snippets for the Racket programming language.

[AndreaCrotti]

Looks good but I'm not super convinced by having snippets that take the body as well.
I mean suppose you write quite a long cond with a lot options, you would have to write everything still while expanding the snippet.
I would rather simply have $0 be the body, so at that point you write the more bulky part you expanded the whole snippet already.

What do you think @codingbum ?

[codingbum]

I did set $0 as the body but i am not sure about the do-loop snippet which is now

(do ([${1:name} ${2:init} ${3:step}]$4) (${5:stop-predicate} ${6:finish}) $0)

[AndreaCrotti]

why is the $1 just next to the for here?
Does it mean you might want to add something to "for"?

[codingbum]

It's because racket has a multitude of for/...

(for/list ...) ;; build a list
(for/vector ...) ;; build a vector
(for/sum ...) ;; sum
(for/and ...) ;; checks if all iterations return (not #f)
...

https://docs.racket-lang.org/reference/for.html?q=for#%28part._.Iteration_and_.Comprehension_.Forms%29

[AndreaCrotti]

Well don't see why not, what's the problem with the $0 there in the do loop @codingbum ?
One slight issue for me is that some of these snippets have way too much stuff to expand in general, for example the do loop just mentioned has 6 things to expand.

I don't think there is a "rule" for this but normally most snippets involve maximum 3-4 tabs..
It would be nice to stay around that, even if it means the snippet is a bit less precise, but the important thing after all is to give a good skeleton not to help you write everything imho.

[codingbum]

the do loop form has multiple bodies. Where shall $0 be?

https://docs.racket-lang.org/reference/for.html?q=for#%28form._%28%28lib._racket%2Fprivate%2Fmore-scheme..rkt%29._do%29%29

[AndreaCrotti]

mm yeah I think that 7 expansions is way too much, I would just do something like

(do ([$1] $2)
         ($3)
     $0)

(with the appropriate placeholder names)
Would that make sense?

[AndreaCrotti]

Ok I tried the snippets again and I think it's fine, we can keep also the do as it is..
Thanks!