[racket-users] Re: problem with :user-error-message in handin server

2020-01-08 Thread David Bremner
David Bremner writes: > > (lambda (msg) > (add-header-line! "Erroneous submission!") > (add-header-line! (format " --> ~a" msg)) > (message (string-append > "You have an error in your program -- please hit" >

[racket-users] problem with :user-error-message in handin server

2020-01-07 Thread David Bremner
Apologies if this appears twice. I sent the first one before being subscribed, so suspect it might just have been black-holed by google. I'm using the latest handin package for the handin server source, installed with "raco pkg install handin". The server is running racket 7.2. I'm trying to

Re: [racket-users] typed-plai vs typed/racket

2020-03-11 Thread David Bremner
Pratyush Das writes: > Is there a comprehensive list of differences between typed-plai and > typed/racket? I'm guessing you mean plai-typed. This is a simple type-inferred language designed for teaching. Because the language is simpler, the type inference is in some sense better; it requires

[racket-users] plotting graphs with flipped y axes

2020-05-03 Thread David Bremner
Does anyone know how to achieve plots like the attached with racket's plot module? I'm stuck trying to invert the y axis. I'd like the smaller y values to be at the top of the plot. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To

[racket-users] using plai/gc2/{collector,mutator} in one file

2020-03-18 Thread David Bremner
As part of an effort to use plai/gc2 with the racket handin server (never having really successfully used the multiple file stuff), I've been trying (and failing) to use modules in one file for the collector and mutator. Attached is the simplest possible example I could cook up using sample code

[racket-users] SISAL like interpreters in racket/scheme

2021-06-23 Thread David Bremner
I'm interested in SISAL and the IF1 intermediate form. I found a typescript based interpreter [1] and an old version of the original compiler in CVS [2], but would love not to have to deal with typescript or CVS. Toy subsets or similar languages welcome! [1]:

Re: [racket-users] Registered on irc.libera.chat

2021-05-26 Thread David Bremner
Yury Bulka writes: > #haskell seems to have been taken over: > > https://www.reddit.com/r/haskell/comments/nl74hc/freenode_has_unilaterally_taken_over_haskell/ > Yes, I spoke too soon apparently. #notmuch was also hijacked last night. I have deleted my freenode account. d -- You received

Re: [racket-users] Registered on irc.libera.chat

2021-05-24 Thread David Bremner
Hendrik Boom writes: > > Experience in other channels indicates that saying you are moving to > libera.chat will get the quick response of having your administrator > privileges revoked and having that message deleted. > For what it is worth, that has not been my experience. I have moved

[racket-users] exporting example code from slideshow documents

2021-02-21 Thread David Bremner
I mostly use emacs org-mode documents for making (latex beamer) slide decks. This allows me to "tangle" the example code from the slides, along with whatever needed supporting material, to generate example programs that I can share with students. Is there a (pre-built?) way to do something

Re: [racket-users] Ubuntu PPA also updated to v8.2

2021-07-30 Thread David Bremner
Joseph Turco writes: > Now we just need the Debian ppas to update to 8.2 for x86 and arm. I'm > more inclined for arm as building racket on a 64bit distro on a pi 400 > hangs the OS. I don't know what you refer to when you say "Debian ppas", but 8.2 is available in Debian experimental for

Re: [racket-users] Ubuntu PPA also updated to v8.2

2021-07-31 Thread David Bremner
Joseph Turco writes: > So I tried installing racket 8.2 from the experimental repos > (downloaded it) and the dependencies (newer version of libc6) will > break some things. So install at your own risk. I'll stick with 7.2 > for now. Yes, I should have mentioned those packages only work with a

Re: [racket-users] Possible options for stopping spam

2021-12-14 Thread David Bremner
Sage Gerard writes: > All, > > I've gained administrative privileges over this list to address the spammer. > I want to hear from others before I touch anything. > Thanks for putting effort into this. > I've been informed that an invite-only approach might not be appropriate, but > without