Re: [racket-users] How 'Pythonic' Can Racket Be Made?

Den man. 9. okt. 2023 kl. 19.35 skrev Adam Golding : > I am going to write a language called 'micronatrix' that is pythonic in > its use of whitespace and even with python 2 type print statements but very > minimal and pared down -- has similar ground been trodden? > There a #lang python

Re: [racket-users] Macro generating macro question

le Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/6BC84910-3AC4-472

Re: [racket-users] Some DrRacket preferences unreadable

be from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/4ba70e7b-e7ac-4720-898a-d9548dbc8426n%40googlegroups.com > <https://groups.google

Re: [racket-users] can't open DrRacket 8.5 on M1 macOS

Also - was Racket moved to the Applications ? It looks like your colleague is opening from the downloaded archive [but I could be wrong]. Den man. 4. jul. 2022 kl. 13.18 skrev Jens Axel Søgaard < jensa...@soegaard.net>: > Can you open it from the terminal: > > open /Applicatio

Re: [racket-users] can't open DrRacket 8.5 on M1 macOS

racket-users/3ec173be-bfbd-4ba2-a019-12b4479501c9n%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/3ec173be-bfbd-4ba2-a019-12b4479501c9n%40googlegroups.com?utm_medium=email_source=footer> > . > -- -- Jens Axel Søgaard -- You received this message because you

Re: [racket-users] Beginner's question

d an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/e72b954e-0b48-4830-b253-34b904d726bcn%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/e72b954e-0b48-4830-b253-34b90

Re: the end of the [racket-users] mailing list and the migration to Discourse as a forum for Racket

to receiving as Internet mail the contributions to the > Discursive forum for Racket <https://racket.discourse.group/>. The > stewards of Racket <https://racket-lang.org/> have published a facility > for enlisting as a participant in the Discursive forum for Racket > <https://r

Re: [racket-users] How to discover a struct's interface without Dr Racket?

e (struct-ref beauty))) (map struct-field-name (struct-info-fields info)) The result is: '(breed color legs) Den søn. 31. okt. 2021 kl. 13.06 skrev David Storrs : > > > On Sun, Oct 31, 2021, 7:49 AM Jens Axel Søgaard > wrote: > >> Hi Brian, >> >> A few random thou

Re: [racket-users] How to discover a struct's interface without Dr Racket?

t;>>> > >>>>> > (begin-for-syntax >>>>> > (displayln >>>>> >(extract-struct-info >>>>> > (syntax-local-value >>>>> > #'syntax >>>>> > >>>>> > ~~> >>>>

Re: [racket-users] Doc pages search engine difficulties

Den tir. 17. aug. 2021 kl. 16.34 skrev Dexter Lagan : > Hello there, > > I'm trying to teach one of my coworkers how to search for function names > in the Racket manual, and I'm having serious problems finding very simple > things, such as the function to display the file browser dialog

Re: [racket-users] problem of gui layout using side-by-side frames

Den tor. 12. aug. 2021 kl. 20.44 skrev George Neuner : > > If I understand correctly, Don seems to want menus in his side-by-side > "panels". > Are we talking menu bar menus or contextual menus? On macOS the menu bar menu belongs to the application and not a window.

Re: [racket-users] frame width and (get-display-size) ...

n on the web visit > https://groups.google.com/d/msgid/racket-users/1e605128-50b3-4578-bf60-2aaa68016006n%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/1e605128-50b3-4578-bf60-2aaa68016006n%40googlegroups.com?utm_medium=email_source=footer> > . > --

Re: [racket-users] Speeding up the conversion of flvectors to string

Den søn. 27. jun. 2021 kl. 18.58 skrev Alessandro Motta : > I also like Jens' code for its pure functional elegance. I'm surprised > that building up a long list of short strings before joining them is so > much faster. After all, isn't the final `string-join` essentially doing > what the

Re: [racket-users] Speeding up the conversion of flvectors to string

dro > > -- > 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. > To view this discussion

Re: [racket-users] Is it possible to effectively display a window with a bitmap background?

googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/565f3573-8759-4d72-8277-35bf3297befdn%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/565f3573-8759-4d72-8277-35bf3297befdn%40googlegroups.com?utm_medium=email_

Re: [racket-users] Can we provide a list of functions?

Den tor. 17. jun. 2021 kl. 15.37 skrev Yossu Bonkers : > I'm quite new to racket, so please pardon me if this is a dumb question. > > I'm working my way through the first tutorial in Beautiful Racket > , and want to extend it. > He only provides +

Re: [racket-users] canvas% mouse event handling difference in Racket CS?

Den lør. 22. maj 2021 kl. 05.37 skrev schle...@gmail.com < schleesi...@gmail.com>: > I have a racket gui app that uses a canvas% with overridden on-event and > on-paint methods. > When the user hovers over drawn elements the on-paint is called via (send > this refresh) > to display the element

Re: [racket-users] Is there a good Racket DSL alternative to Image Magick?

up and stop receiving emails from it, send > an email to racket-users+unsubscr...@googlegroups.com. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/b6a89a78-c92c-41c1-960a-49d64d8a5366n%40googlegroups.com > . > > -- > You received

Re: [racket-users] macros in Racket repository

his discussion on the web visit > https://groups.google.com/d/msgid/racket-users/CANy33q%3DsLEH-ooUJxTay6pG1GNcRLZDUotNJ23L1HRTC1XqHwA%40mail.gmail.com > <https://groups.google.com/d/msgid/racket-users/CANy33q%3DsLEH-ooUJxTay6pG1GNcRLZDUotNJ23L1HRTC1XqHwA%40mail.gmail.com?utm_medium=email_source

Re: [racket-users] SRFI 216 "SICP Prerequisites" vs #lang sicp

Den tir. 9. mar. 2021 kl. 20.38 skrev Tim Lee : > I noticed that SRFI 216 "SICP Prerequisites" reached "final" status in > January 2021. How will this affect #lang sicp? What are the differences > between these two SICP aids? > > SRFI 216 link: https://srfi.schemers.org/srfi-216/srfi-216.html >

Re: [racket-users] Bit Scan Reverse in Racket

oup. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/a2a4fe83-877d-d7ed-4812-bd628c128659%40trustica.cz > . &g

Re: [racket-users] flomat -- possible typo in documentation

Den tir. 23. feb. 2021 kl. 14.39 skrev Hendrik Boom : > On > https://docs.racket-lang.org/manual-flomat/index.html#%28part._.Matrix_.Creation%29 > > it says > > > (sub! A i j m n) > > Same as sub, but the elements are copied - the underlying array of > flonums are shared. > > Presumably it should

Re: [racket-users] New to Racket

Den tor. 18. feb. 2021 kl. 08.09 skrev Rohan Posthumus < rohanposthu...@gmail.com>: > I am a data analyst and uses a lot of data science packages in Python. > In order to learn Racket, I want to translate some of these into Racket. I > need some help with where to start. > >- I finished

Re: [racket-users] Moving a Rust/Haskell abstract algebra library to Racket?

Den tor. 21. jan. 2021 kl. 05.06 skrev Stuart Hungerford < stuart.hungerf...@gmail.com>: > My project is really aimed at supporting self-directed learning of > concepts from abstract algebra. > I was taught many years ago that to really understand something to try > implementing it in a high

Re: [racket-users] Moving a Rust/Haskell abstract algebra library to Racket?

Den tor. 21. jan. 2021 kl. 05.06 skrev Stuart Hungerford < stuart.hungerf...@gmail.com>: > On Thursday, 21 January 2021 at 10:22:45 UTC+11 Jens Axel Søgaard wrote: > > > Back to your project - what is the goal of the project? > > Making something like GAP perhaps? &g

Re: [racket-users] Moving a Rust/Haskell abstract algebra library to Racket?

Den ons. 20. jan. 2021 kl. 08.43 skrev Stuart Hungerford < stuart.hungerf...@gmail.com>: > On Wednesday, 20 January 2021 at 12:34:59 UTC+11 Robby Findler wrote: > > I'm no expert on algebras, but I think the way to work on this is not to >> think "what Racket constructs are close that I might

Re: [racket-users] Linear algebra performance (was: calculations with arrays)

Den tir. 24. nov. 2020 kl. 15.12 skrev Dominik Pantůček < dominik.pantu...@trustica.cz>: > Hello, > > > If you are after numerical calculations for mxn matrices, then look at > > `flomat` > > which uses the same underlying C/Fortran library that NumPy uses. > > > >

Re: [racket-users] calculations with arrays

Den ons. 18. nov. 2020 kl. 14.15 skrev Tim Meehan : > Is there a way to use Racket vectors similarly to how one might use NumPy? > (Or are vectors even the right thing to use?) > If you are after numerical calculations for mxn matrices, then look at `flomat` which uses the same underlying

Re: [racket-users] Package Server Update Status

Den tir. 18. aug. 2020 kl. 16.57 skrev Deren Dohoda : > Hi team, > > I notice on the very nice about page, > https://pkg-build.racket-lang.org/about.html, it does not give an > indication of when packages are rebuilt. I had a package that had doc > problems and conflicts that I resolved (the ol'

Re: [racket-users] [racket users] %app question

Den tor. 13. aug. 2020 kl. 21.55 skrev Kevin Forchione : > Hi guys, > > Pollen makes use of something like this: > > (require syntax/parse/define) > > (define-simple-macro (#%top . x) 'x) > > > and it comes in handy in some of my projects. But I’m wondering if there’s > an equivalent for

Re: [racket-users] macro hiding in raco expand

et Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/94E20736-F1F7-4073-B3FA-505ADD71DB4F%40dcc.

Re: [racket-users] namespaces + eval + reader

Den fre. 31. jul. 2020 kl. 04.01 skrev Shriram Krishnamurthi < shri...@gmail.com>: > want to create a namespace for (say) the BSL language in DrRacket. > Critically, I need the *reader* to be aligned with this language. > Otherwise, small semantic discrepancies creep in. ... > The expressions

Re: [racket-users] combining require, build-path, and namespaces

Den tir. 21. jul. 2020 kl. 20.25 skrev Sorawee Porncharoenwase < sorawee.pw...@gmail.com>: > This is weird. I usually parameterize current-namespace when using > namespace-* functions, and in this particular case it works fine. > > On Tue, Jul 21, 2020 at 11:05 AM Shriram Krishnamurthi > wrote:

Re: [racket-users] combining require, build-path, and namespaces

Den tir. 21. jul. 2020 kl. 17.45 skrev Shriram Krishnamurthi < shri...@gmail.com>: > How I can combine these three? I want to do something like this: > > (define n (make-base-namespace)) > (define p (build-path f)) > (eval `(require ,p) n) > > Racket doesn't like that: bad syntax for

Re: [racket-users] Font bearing - lining up texts and outlines

Den man. 20. jul. 2020 kl. 19.14 skrev Jens Axel Søgaard < jensa...@soegaard.net>: > Thanks for the response. > > I have attempted to go in your foot steps and have made a single file > example, so it is easy to try out. > Just to recap, the goal is to get the vertical bearin

Re: [racket-users] Layout + styling in racket/gui

Hi Travis, Den tir. 7. jul. 2020 kl. 00.18 skrev Travis Kiefer : > Thank you for the example links. The spreadsheet example gets closer to > the right direction of a non-trivial example. What's missing from these is > the ability to add styles to the elements... Background colors, gradients, >

Re: [racket-users] Is it possible to simulate FEXPRs in Racket?

Den søn. 7. jun. 2020 kl. 14.09 skrev Siyuan Chen : Unfortunately, this code doesn't work, because it lacks two functions, > `get-current-env` and `extends-env`. > These are not available since static lexical scope makes it possible for the compiler to determine where a variable is stored at

Re: [racket-users] Some stuff about "case".

Den man. 1. jun. 2020 kl. 20.53 skrev Christopher Lemmer Webber < cweb...@dustycloud.org>: > As I started typing this email and looking into the definition of case, > I realized my assumptions are wrong. > > What I needed: something like case which dispatches on symbols, except > not auto-quoting

Re: [racket-users] Re: How to make DrRacket interactions window use the same reader as the definitions window?

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 -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To

Re: [racket-users] Re: Typing lag with DrRacket on Linux

gt; >>> > > >>> > >>> > > >>> > >>> > > On Friday, February 9, 2018 at 7:00:18 PM UTC-10, Evan Whitmer >>> wrote: >>> > >>> > >> >>> > >>> > >> I, too, am

Re: [racket-users] coding style query

Den ons. 27. maj 2020 kl. 19.56 skrev Hendrik Boom : > Is there an accepted convention about how to use a symbol used in a > program within a comment so it's clear the comment is using it as a > program symbol and not as an ordinary English word? > Not sure. Sometimes I surround the symbol with

Re: [racket-users] Function that potentially can return more than one value

Den ons. 27. maj 2020 kl. 19.27 skrev George Neuner : > > On 5/27/2020 6:34 AM, Jens Axel Søgaard wrote: > > > > In standard Racket an application doesn't communicate how many values > > a function is expected to produce. > > You can ask: see procedure-result-ar

Re: [racket-users] Migrating from a "model-driven" language framework to Racket

ubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/3ee19998-88bf-48f7-8129-c1be9419d4c9%40googlegroups.com > <https://grou

Re: [racket-users] Re: Practical HTTP requests?

is >>> together, I'm struggling as a new user to figure out what libraries are >>> recommended and, more importantly, how to put them together to accomplish >>> the above points. >>> >>> Thank you. >>> >>> p.s. The Racket documentation is by far the

Re: [racket-users] Re: Strange behaviour of ptr-ref + ptr-add(?)

iving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/CABNTSaFmfgTpTrWzfcxL%2BxQCqtge5Ls1eKW%2Bp0ftd%3D0q554ALg%40mail.gmail.com > <https://groups.google.c

Re: [racket-users] A convenient assertion macro - with one caveat

ogle.com/d/msgid/racket-users/CACUENrLX%3D9ix2kv9MNpp3nNoSN%3DsWBx%2BFTRdwNyNA7EiVWQ0mA%40mail.gmail.com > <https://groups.google.com/d/msgid/racket-users/CACUENrLX%3D9ix2kv9MNpp3nNoSN%3DsWBx%2BFTRdwNyNA7EiVWQ0mA%40mail.gmail.com?utm_medium=email_source=footer> > . > -- -- Jens A

Re: [racket-users] a minor regexp question (and a how-could-I-answer-it-myself? question)

Den fre. 1. maj 2020 kl. 14.20 skrev Tim Hanson : > hi, just now I'm debugging a regular expression and trying to understand > why this: > > > (regexp-match-positions #rx"[-+][0-9]+" "-0500") > '((0 . 5)) > > works as I expect, whereas this: > > > (regexp-match-positions #rx"[-+][0-9]{4}"

Re: [racket-users] Question on test failures sorting a BTS

> "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/e5e05ebe-87ed-4d49-8a

Re: [racket-users] rename-in issue

Den tor. 9. apr. 2020 kl. 11.04 skrev Lucas Liendo : > Hi everyone! I've a very dumb question (as still not very experienced > Racket programmer), I'm doing the following: > > (require net/url > web-server/dispatchers/filesystem-map > (rename-in

Re: [racket-users] BLAS and LAPACK bindings for operations over math/matrix

Den lør. 28. mar. 2020 kl. 12.37 skrev Pratyush Das : > So, this is what I found when I was looking for a Racket library with BLAS > and LAPACK bindings - > https://github.com/soegaard/flmatrix > https://github.com/farr/PLT-Racket-Linear-Algebra-Bindings > > But they implement their own matrices

Re: [racket-users] Help with vector-sort

Den lør. 15. feb. 2020 kl. 13.44 skrev greadey : > I have written a programme to compute a bootstrapped mean etc. I > successfully wrote it using lists both untyped and in typed/racket. > I am interested in optimising the code and having seen that typed racket > performs faster (for lists) I am

Re: [racket-users] resources for learning JS / React?

-993a-210a364c70f7%40googlegroups.com > . > > > > -- > 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...@

Re: [racket-users] Web server + authentication

Den tor. 23. jan. 2020 kl. 01.47 skrev Matthew Butterick : > I concur on Postmark. For 2+ yrs I've used it with the Racket web server > for mbtype.com. I pass the server settings to `smtp-send-message` from ` > net/smtp`. > > On 22 Jan 20, at 3:00 AM, Bogdan Popa wrote: > > I like using

Re: [racket-users] Web server + authentication

cr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/93a77b99-f238-4315-9f10-0b1aa6929262%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/93a77b99-f238-4315-9f10-0b1aa6929262%40googlegroups.com?utm_medium=email_sourc

Re: [racket-users] GUI (get-directory)

the web visit > https://groups.google.com/d/msgid/racket-users/67dff8ff-cbd2-4d26-8901-34fc2be43928%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/67dff8ff-cbd2-4d26-8901-34fc2be43928%40googlegroups.com?utm_medium=email_source=footer> > . > -- -- Jens Ax

Re: [racket-users] Question regarding use of Scribble PDF button (and scribble-math) under Windows

Den tir. 26. nov. 2019 kl. 01.18 skrev E Comer : > Hi Racket friends: > > The running of the following code produce an error under Windows, when I > try to generate a PDF with the Scribble PDF button under DrRacket 7.5. > > Which error? /Jens Axel -- You received this message because you are

[racket-users] Parameters and dynamic-require

Hi All, How can I set a parameter used in a dynamically required module? Example: A parameter `out` is defined in a module p. Before requiring (dynamically) module a, we want to set the parameter. The attempt below fails. (module p racket/base (define out (make-parameter 'original-value))

Re: [racket-users] eq? of quoted expressions

Den fre. 25. okt. 2019 kl. 16.35 skrev wanderley.guimar...@gmail.com < wanderley.guimar...@gmail.com>: > Why (eq? (quote a) (quote a)) is #t but (eq? (quote (a)) (quote (a))) > is #f? I would expect that if (quote (a)) was a mutable pair but it > is not since (quote (a)) returns #f. It seems

Re: [racket-users] Some guidance in setting up Racket as a game scripting language.

Den man. 7. okt. 2019 kl. 20.15 skrev Hans Sjunnesson < hans.sjunnes...@gmail.com>: > I'm sorry Jens - I'm using Visual Studio on Windows to compile this > project. > I've initially built libracket, and SDL, which I'm linking against. > I can zip the entire solution and upload it somewhere for

Re: [racket-users] Some guidance in setting up Racket as a game scripting language.

Den ons. 2. okt. 2019 kl. 15.31 skrev Hans Sjunnesson < hans.sjunnes...@gmail.com>: > This is a hobby project of mine - a game in C, using SDL. I'd like to only > use C for the rendering part - rather use a scripting language for all of > the gameplay code. I want to try to use Racket for this -

[racket-users] Racket Stories

Hi All, As the Slack users already know, I have created a little web-site to share interesting stories/links/blogs/packages/papers on everything Racket-related. https://racket-stories.com Click "submit" to submit your own stories. /Jens Axel -- You received this message because you are

Re: [racket-users] General ways and concrete examples of approaching web dev

Hi Marc, Den tir. 24. sep. 2019 kl. 21.28 skrev Marc Kaufmann < marc.kaufman...@gmail.com>: > TL;DR: What are some patterns/approaches for web sites for which Racket is > particularly suited *and* for which you can point at decently written up > examples in Racket or other languages that share

Re: [racket-users] syntax-parse ellipsis question

Den lør. 21. sep. 2019 kl. 22.15 skrev Jonathan Simpson : > Given this macro that I'm experimenting with: > > (syntax-parse #'(1 2 2 a 2 2 b 2 c) [(1 (~seq n:nat ...+ x) ...) #'((n ... > x) ...)]) > > How would I change it so that it returns #'(2 2 a 2 2 b 2 c) instead of > #'((2 2 a) (2 2 b) (2

Re: [racket-users] How to disable back button in web application

Den lør. 21. sep. 2019 kl. 10.05 skrev Marc Kaufmann < marc.kaufman...@gmail.com>: > Could I use the send/forward to essentially disable forms if I use as the > `action` attribute on the form an (embed-url ...), which will no longer > work later on? This will probably through an error if people

Re: [racket-users] How to disable back button in web application

Den fre. 20. sep. 2019 kl. 13.51 skrev Marc Kaufmann < marc.kaufman...@gmail.com>: > Thanks Jens, yes the send/forward seems to at least address a few of the > cases that I have - not sure if it disallows the forms unless I use > continuations in the forms (right now I am not, mostly just sending

Re: [racket-users] How to disable back button in web application

oups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/7e356eb4-e886-4f9c-90cd-0db658d14a91%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/7e356eb4-e886-4f9c-90cd-0db658d14a91%40googlegroups.com?utm_medium=email_source=fo

Re: [racket-users] FFI and immovable pointers for input/output (featuring automatic cropping for picts)

Den tor. 19. sep. 2019 kl. 17.05 skrev Matthew Flatt : > I don't think you need immobile memory. There are no callbacks to > Racket involved with `cairo_recording_surface_ink_extents`, and you're > not using `#:blocking? #t`, so no memory-moving GC will happen during > the foreign call. That

[racket-users] FFI and immovable pointers for input/output (featuring automatic cropping for picts)

Hi All, I am working on automatic cropping for picts. Here automatic means the pict will be cropped (or extended) to include what will be inked when the pict is drawn. The function crop/inked seems to work fine (see attached file), but the functions in draw/unsage/cairo uses the following for

Re: [racket-users] Running Big Bang applications in the browser

web visit > https://groups.google.com/d/msgid/racket-users/8ece7940-39d0-42a6-9ede-1ca2f9b071c1%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/8ece7940-39d0-42a6-9ede-1ca2f9b071c1%40googlegroups.com?utm_medium=email_source=footer> > . > -- -- Je

Re: [racket-users] transparency in Pict

Den tir. 10. sep. 2019 kl. 17.04 skrev Hendrik Boom : > On Tue, Sep 10, 2019 at 03:23:43PM +0200, Jens Axel Søgaard wrote: > > > I have extended "clipped" to handle regions defined by more than one > path. > > Now (clipped c ... p) will make a region from the curv

Re: [racket-users] transparency in Pict

Den tir. 10. sep. 2019 kl. 14.54 skrev George Neuner : > > Or create a region with a hole through it and use it to clip the drawing. > Great suggestion. That's much better than using pict->bitmap. I have extended "clipped" to handle regions defined by more than one path. Now (clipped c ... p)

Re: [racket-users] transparency in Pict

sit > https://groups.google.com/d/msgid/racket-users/20190909182018.74o322qfwehrmqaz%40topoi.pooq.com > . > -- -- Jens Axel Søgaard -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receivi

Re: [racket-users] Downloadable tutorials (e.g. on github)? Tutorial example source codes samples attached to DrRacket instalation?

from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/254a1ad3-637c-46d1-9466-3a10599af180%40googlegroups.com > <https://grou

Re: [racket-users] Listing All Programs

Den tor. 5. sep. 2019 kl. 23.27 skrev Josh Rubin : > > On 9/5/2019 9:05 AM, Adam Golding wrote: > > What is the shortest/smallest racket program (ithat enumerates all and > > only valid racket programs? > > > > You might be interested in the logic-programming/constraint-solving > language named

Re: [racket-users] I'd like clarification about scribble and pollen.

Den ons. 28. aug. 2019 kl. 20.45 skrev Hendrik Boom : > > There is even a documented trick that enables a user to > discover the s-expression resulting from a particular @-expression. > But this trick does not show the s-expression resulting from an entire > #lang scribble file. Is there a way

Re: [racket-users] running the wrong sqlite3

t; "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/433b3b19-e6ef-43b6-957f-e58da37675f6%

Re: [racket-users] Unwelcome surprises using Scribble on a 90,000-word novel

Den tor. 1. aug. 2019 kl. 13.25 skrev Hendrik Boom : > (2) When I use include-section from the main file, the actual text in > the main file appears first, and the included files are all saved up ane > emitted after the text in the main file. I expected the sections to be > included where the

Re: [racket-users] Calling function with Scribble text as argument(s)

Den tir. 30. jul. 2019 kl. 19.02 skrev Hendrik Boom : > I've found this as an example for getting coloured text: > > #lang scribble/base > > @(require scribble/core) > > @(define (colorize #:color c . content) > (elem #:style (style #f (list (color-property c))) >

Re: [racket-users] Re: (ninth RacketCon) videos

> > > On Friday, July 19, 2019 at 12:19:44 PM UTC-7, Matthew Flatt wrote: >> >> Individual videos for this year's RacketCon talks are now available: >> >> https://www.youtube.com/playlist?list=PLXr4KViVC0qJp4_2uTTAOjt-4URQBAR4c >> > Den man. 22. jul. 2019 kl. 23.36 skrev Kees-Jochem Wehrmeijer <

Re: [racket-users] Re: Thinking in scheme / racket

Den tor. 11. jul. 2019 kl. 15.40 skrev Bob Heffernan < bob.heffer...@gmail.com>: > On 19-07-11 09:31, James Geddes wrote: > > Indeed, I would have thought that the calculation time would be > > entirely dominated by the test for primality, and especially what > > happens once the candidate primes

[racket-users] Specializing functions accepting keywords

Consider the following fishy example wherein we try to reuse a function with keyword arguments. (define (fish #:name[name #f] #:color [color #f] #:studio [studio #f] #:eyes[eyes 2]) (~a "The fish " name " is " color ", appears in a

Re: [racket-users] HTML rendering

Den fre. 21. jun. 2019 kl. 21.10 skrev James Platt : > I've been looking at HTML rendering in Racket and the Browser package > looks interesting, especially since it can execute Racket code from a > special HTML tag. > > https://docs.racket-lang.org/browser/index.html > > The problem is that the

Re: [racket-users] for loop: any way to access the whole list?

he web visit > https://groups.google.com/d/msgid/racket-users/07ad5ce3-0ba8-48a5-a356-5cb1545de4cd%40googlegroups.com > <https://groups.google.com/d/msgid/racket-users/07ad5ce3-0ba8-48a5-a356-5cb1545de4cd%40googlegroups.com?utm_medium=email_source=footer> > . > For more options,

Re: [racket-users] Re: How would you implement autoquoted atoms?

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. > -- --

Re: [racket-users] question about matching with "(? ...)"

; > > -- > 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.

Re: [racket-users] make extensions or replacements

obscure. > > > > Sure, I could invent something. But chances are, someone else already > > has invented something better than I'd improvise. > > > > -- hendrik > > -- > You received this message because you are subscribed to the Google Groups > "Racket U

Re: [racket-users] Pattern: reusing the same name in macro-generated definitions

Yes! fre. 5. apr. 2019 kl. 13.52 skrev Hendrik Boom : > On Fri, Apr 05, 2019 at 01:35:37PM +0200, Jens Axel Søgaard wrote: > > Den tor. 4. apr. 2019 kl. 21.58 skrev zeRusski >: > > > > (define-simple-macro (define-foo (name:id formal:id ...) body:expr ...) > >

Re: [racket-users] Pattern: reusing the same name in macro-generated definitions

Den tor. 4. apr. 2019 kl. 21.58 skrev zeRusski : (define-simple-macro (define-foo (name:id formal:id ...) body:expr ...) >> (begin >> (define (foo-impl formal ...) body ...) >> (define-syntax (name stx) >> (syntax-parse stx >> [(_ . args) #'(foo-impl . args)] >>

Re: [racket-users] color-maps for the plot package

t; >> (plot (list (function sin -5 5) (function cos -5 5))) >> >> If others think that (1) and (2) are worthwhile doing, I will submit a >> PR, so >> we can discuss the API an implementation over something more concrete. I >> am >> open discussion

Re: [racket-users] color-maps for the plot package

Den tir. 19. mar. 2019 kl. 23.03 skrev Alex Harsanyi : > On Tuesday, March 19, 2019 at 9:53:23 PM UTC+8, Jens Axel Søgaard wrote: >> >> This is a great idea. >> >> It would be really nice to be able to use the colors also from non-plot >> programs. >> &

Re: [racket-users] color-maps for the plot package

FWIW see also the Mathematica documentation on ColorSchemes and related functions for inspiration. https://reference.wolfram.com/language/guide/ColorSchemes.html /Jens Axel -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from

Re: [racket-users] color-maps for the plot package

lots for a lot less effort. > > Do others think this would be useful? > > Alex. > > -- > 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

Re: [racket-users] Cannot use case+else inside match+else

oup. > 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. > -- -- Jens Axel Søgaard -- You received this message because you are subscribed to the Google G

Re: [racket-users] Help with generators from python land!

Den ons. 20. feb. 2019 kl. 22.25 skrev Dave McDaniel : > Hello, > > I have interest in picking up racket and have done some koans and also > have been doing the racket track on exercism. > > There is a fairly simple exercise called `etl` on exercism related to > taking a hash for scoring scrabble

Re: [racket-users] Wishlist for regexen: x mode, named captures, embeddable regexn

Den tor. 14. feb. 2019 kl. 16.16 skrev Greg Hendershott < greghendersh...@gmail.com>: > > When I do use regexps in Racket, I almost always use them with `match` > and the `pregexp` pattern, to bind the groups to identifiers. > > There is some space between trivial regexps and a full/"real"

Re: [racket-users] Loading foreign libraries on Windows

int me to > the file(s).] > > George > > -- > 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.

Re: [racket-users] Re: nested for loops and suggested alternatives

rove that (the timings are old - perhaps it has become better already). /Jens Axel -- -- Jens Axel Søgaard -- 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,

Re: [racket-users] Guide and reference

Den ons. 6. feb. 2019 kl. 12.33 skrev James Geddes : > There was a recent discussion on this list about the Racket guides and > manuals. Without wishing to comment on the suggestions therein, I did want > to say what I really, really like about the Racket documentation. > > There are two things.

Re: [racket-users] Real-world examples of XML usage?

Den søn. 3. feb. 2019 kl. 05.57 skrev David Storrs : > There was a discussion in another thread lately about various ways of > representing XML. It got me thinking, and I wanted to ask about > people's practical experience. > > What projects have y'all done where XML was the best choice for a >

Re: [racket-users] Python's append vs Racket's append and helping novices understand the implications

re meeting >> with GvR), I used Python’s append and was annoyed beyond belief. ]] >> >> >> -- > 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, s

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