Jens -
Interesting - does the default #%top-interaction behave differently from
#%module-begin w.r.t. to a #lang's read?
Right now my main.rkt is providing the standard #%module-begin,
#%top-interaction, #%app, #%datum, and #%top, in addition to my language's
functions + macros.
Thanks!
On Fri,
There may be other solutions, but one way to control the evaluation of
expressions entered in the REPL
is to provide an #%top-interaction, which sets the appropriate parameters.
/Jens Axel
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Any ideas what I can do to stop getting this message anytime I have
DrRacket running in 2 terminals in different workspaces on linux/Ubuntu.
"Error saving preferences" is the title in the popup window.
Text in the window is:
"The preferences file is locked (because ...) so your preference change
co
Quick follow-up:
It looks like I may somehow be able to change DrRacket's printing and
reading behavior on a per-language basis somehow using the classes here
https://docs.racket-lang.org/tools/drracket_language.html?q=drracket%3Alanguage%3Asimple-settings-printing-style
but the documentation
On Friday, May 29, 2020 at 11:29:38 AM UTC-4, Matthew Flatt wrote:
>
> DrRacket uses `pretty-print`, which will print numbers using
> `number->string`, and so (I think) won't go through your parameter.
>
This sounds like a good lead - curious if this also applies to `write` and
`display` as w
DrRacket uses `pretty-print`, which will print numbers using
`number->string`, and so (I think) won't go through your parameter.
I think there may be problems with parametering the core printer,
partly because printing is is sometimes used where `read` is supposed
to work on the result, but I thin
On an apparently related note:
I have modified Racket to allow parameterized control over how numbers are
written/printed/displayed ( cf. https://github.com/racket/racket/pull/3222
).
This works fine from command-line racket, but DrRacket (installed using
`raco pkg install -i drracket` of my mo
Hi, im a beginner with racket and im using it to implement a language in
order to test its operational semantic rules.
This is the function where i keep having the error:
(define-metafunction FS
call : env-ß classes address f ((x v)...) -> e
[(call (env-ß_1 ... ((address_1 C_1 n_1 vars_1 ...
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