# Latest **URL:** https://racket.discourse.group/latest.md?page=27 [Latest](https://racket.discourse.group/latest.md) · [Categories](https://racket.discourse.group/categories.md) · [Tags](https://racket.discourse.group/tags.md) **Page:** 28 --- ## [Can raco turn off SSL?](https://racket.discourse.group/t/can-raco-turn-off-ssl/3044)
**Author:** [@Don](https://racket.discourse.group/u/Don)\ **Replies:** 6\ **Last updated:** [July 24, 2024, 2:31am UTC](https://racket.discourse.group/t/can-raco-turn-off-ssl/3044 "2024-07-24T02:31:39Z")
Trying to obtain pkg: remote-shell for macOS. Getting: ssl-connect: connect failed ..tls\_process\_server\_certificate verify failed when using: raco pkg install remote-shell Since I have yet to discover a fix for the a… --- ## [Trying to install package: remote-shell-lib](https://racket.discourse.group/t/trying-to-install-package-remote-shell-lib/3034)
**Author:** [@Don](https://racket.discourse.group/u/Don)\ **Replies:** 14\ **Last updated:** [July 23, 2024, 8:59pm UTC](https://racket.discourse.group/t/trying-to-install-package-remote-shell-lib/3034 "2024-07-23T20:59:21Z")
Trying to install package: remote-shell-lib on macos. When I try Package Install Pacckage Source: https:://download.racket-lang-org/releases/8.7/catalog I see this: Downloading cechsum for catalog ssl-connect: conn… --- ## [Why add commands to \`raco\`?](https://racket.discourse.group/t/why-add-commands-to-raco/3033)
**Author:** [@stevebyan](https://racket.discourse.group/u/stevebyan)\ **Replies:** 3\ **Last updated:** [July 16, 2024, 7:52pm UTC](https://racket.discourse.group/t/why-add-commands-to-raco/3033 "2024-07-16T19:52:36Z")
I can see why one would put all the tooling needed to build and maintain Racket into raco as commands, but when does it make sense to add other commands to raco, as opposed to just running the executable? For example, I… --- ## [Help: I can't get contract-in to work!](https://racket.discourse.group/t/help-i-cant-get-contract-in-to-work/3041)
**Author:** [@Greg\_Davidson](https://racket.discourse.group/u/Greg_Davidson)\ **Replies:** 2\ **Last updated:** [July 20, 2024, 7:03pm UTC](https://racket.discourse.group/t/help-i-cant-get-contract-in-to-work/3041 "2024-07-20T19:03:56Z")
I'm trying to bring in some functions from a relative file using contract-in with Racket v8.13 \[cs\]. Nothing I've tried seems to work. The doc says (\[contract-in\] require-spec contract-in-item ...) where require-spec … --- ## [Raco unable to install packages on macOS due to SSL/TLS certificate issues](https://racket.discourse.group/t/raco-unable-to-install-packages-on-macos-due-to-ssl-tls-certificate-issues/3039)
**Author:** [@Don](https://racket.discourse.group/u/Don)\ **Replies:** 1\ **Last updated:** [July 19, 2024, 6:59pm UTC](https://racket.discourse.group/t/raco-unable-to-install-packages-on-macos-due-to-ssl-tls-certificate-issues/3039 "2024-07-19T18:59:35Z")
My issue on macos v10.11.6 is the same as one I have found here: Raco unable to install packages on macOS due to SSL/TLS certificate issues #4108 rmculpepper added 3 commits 2 years ago /github.com/racket/racket/pull/… --- ## [Where is the macro system in the source tree?](https://racket.discourse.group/t/where-is-the-macro-system-in-the-source-tree/3043)
**Author:** [@abdulhamid-the-ottom](https://racket.discourse.group/u/abdulhamid-the-ottom)\ **Replies:** 2\ **Last updated:** [July 19, 2024, 6:31pm UTC](https://racket.discourse.group/t/where-is-the-macro-system-in-the-source-tree/3043 "2024-07-19T18:31:10Z")
Hi, I want to know where is the source code located for the Racket's macro system? And what would it take to rewrite it from scratch? Thanks --- ## [File explorer functionality for DrRacket](https://racket.discourse.group/t/file-explorer-functionality-for-drracket/3037)
**Author:** [@frodeaux](https://racket.discourse.group/u/frodeaux)\ **Replies:** 2\ **Last updated:** [July 18, 2024, 8:22pm UTC](https://racket.discourse.group/t/file-explorer-functionality-for-drracket/3037 "2024-07-18T20:22:36Z")
For me, adding the ability to browse files/directories to DrRacket would be a giant help. I found a reference to the plugin, "files-viewer" but documentation links are broken. Can anyone offer how-to info on using this p… --- ## [Racket packages in Racket Mode for Emacs](https://racket.discourse.group/t/racket-packages-in-racket-mode-for-emacs/3027)
**Author:** [@greghendershott](https://racket.discourse.group/u/greghendershott)\ **Replies:** 8\ **Last updated:** [July 18, 2024, 8:05pm UTC](https://racket.discourse.group/t/racket-packages-in-racket-mode-for-emacs/3027 "2024-07-18T20:05:30Z")
FYI, I just added to Racket Mode a UX for Racket packages. Roughly the same spirit as the Emacs UX for Emacs packages (with its list-packages and describe-package). So M-x list-racket-packages gives you a summary of all… --- ## [Dynamically sending keyword arguments](https://racket.discourse.group/t/dynamically-sending-keyword-arguments/3036)
**Author:** [@qnc](https://racket.discourse.group/u/qnc)\ **Replies:** 1\ **Last updated:** [July 18, 2024, 2:00pm UTC](https://racket.discourse.group/t/dynamically-sending-keyword-arguments/3036 "2024-07-18T14:00:16Z")
Racket has keyword-apply function to compensate apply's inability to pass keyword arguments dynamically. However, I can't see dynamic-send's keyword counterpart. What should I do to dynamically send an object's method wi… --- ## [How do I unclone a package?](https://racket.discourse.group/t/how-do-i-unclone-a-package/3028)
**Author:** [@stevebyan](https://racket.discourse.group/u/stevebyan)\ **Replies:** 4\ **Last updated:** [July 18, 2024, 5:35am UTC](https://racket.discourse.group/t/how-do-i-unclone-a-package/3028 "2024-07-18T05:35:07Z")
I used the information in the Tutorial: Contributing to Racket to install a local forked clone of the Scribble repo into my pre-compiled installation of Racket, via $ raco pkg update --no-setup --catalog https://pkgs.r… --- ## [Can one add new renderers to Scribble via a package?](https://racket.discourse.group/t/can-one-add-new-renderers-to-scribble-via-a-package/3023)
**Author:** [@stevebyan](https://racket.discourse.group/u/stevebyan)\ **Replies:** 1\ **Last updated:** [July 18, 2024, 3:27am UTC](https://racket.discourse.group/t/can-one-add-new-renderers-to-scribble-via-a-package/3023 "2024-07-18T03:27:21Z")
I'd like to extend Scribble with an --html-nav option to produce a separate file containing the navigational elements. My intent is to convert the Scribble-generated html to sxml, then include the body sxml and navigatio… --- ## [Stepper for Plait (instead of BSL/ISL)](https://racket.discourse.group/t/stepper-for-plait-instead-of-bsl-isl/3017)
**Author:** [@JoeyEremondi](https://racket.discourse.group/u/JoeyEremondi)\ **Replies:** 1\ **Last updated:** [July 17, 2024, 5:57pm UTC](https://racket.discourse.group/t/stepper-for-plait-instead-of-bsl-isl/3017 "2024-07-17T17:57:06Z")
I was wondering if anybody had an algebraic stepper that worked on Racket languages other than BSL or ISL, that I could adapt to work on (a fragment of) Plait. There's the debugger, but for purely functional code it's … --- ## [Handin grading without using server?](https://racket.discourse.group/t/handin-grading-without-using-server/3020)
**Author:** [@JoeyEremondi](https://racket.discourse.group/u/JoeyEremondi)\ **Replies:** 3\ **Last updated:** [July 17, 2024, 5:52pm UTC](https://racket.discourse.group/t/handin-grading-without-using-server/3020 "2024-07-17T17:52:53Z")
Basically, I've got a bunch of students submitting assignments, so I get a .zip file from Moodle with a bunch of folders, each of which has one .rkt file. I've seen that the handin server has really nice tools for defin… --- ## [Experiences coming from other languages to Racket?](https://racket.discourse.group/t/experiences-coming-from-other-languages-to-racket/170)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 23\ **Last updated:** [July 16, 2024, 8:54pm UTC](https://racket.discourse.group/t/experiences-coming-from-other-languages-to-racket/170 "2024-07-16T20:54:56Z")
In an effort to help new people coming to Racket the platform and the language this is an invitation to share your experiences coming from other platforms/languages to Racket. What surprised you when you came to Racket… --- ## [Import syntax? in r6rs program](https://racket.discourse.group/t/import-syntax-in-r6rs-program/3026)
**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\ **Replies:** 2\ **Last updated:** [July 15, 2024, 10:14am UTC](https://racket.discourse.group/t/import-syntax-in-r6rs-program/3026 "2024-07-15T10:14:30Z")
hello, is there a way to import syntax? which exist in Racket in #!r6rs program, i have already imported (rnrs syntax-case (6)) but it isn't inside : (import (rnrs base (6)) (rnrs syntax-case (6)) (only (srfi :1… --- ## [Contributing to Racket](https://racket.discourse.group/t/contributing-to-racket/542)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 19\ **Last updated:** [July 13, 2024, 8:37pm UTC](https://racket.discourse.group/t/contributing-to-racket/542 "2024-07-13T20:37:22Z")
Hi, Do we make it easy to contribute to Racket? I've listed the resources I am aware of below. Suggestions, PR's, comments, etc. all welcome! Help us make this better! best wishes, Stephen Resources that new memb… --- ## [Single-use macros](https://racket.discourse.group/t/single-use-macros/3022)
**Author:** [@qnc](https://racket.discourse.group/u/qnc)\ **Replies:** 3\ **Last updated:** [July 13, 2024, 1:18pm UTC](https://racket.discourse.group/t/single-use-macros/3022 "2024-07-13T13:18:01Z")
In addition to code-reuse, macros also come in handy for ad-hoc templating. I often have to repeat the following pattern: (define-syntax (xxx stx) #\`(... #,@(for/list ...) ...) xxx and never use xxx again. … --- ## [Windows Arm64 build to test](https://racket.discourse.group/t/windows-arm64-build-to-test/3021)
**Author:** [@jbclements](https://racket.discourse.group/u/jbclements)\ **Replies:** 0\ **Last updated:** [July 12, 2024, 11:46pm UTC](https://racket.discourse.group/t/windows-arm64-build-to-test/3021 "2024-07-12T23:46:53Z")
The current plan is for the upcoming 8.14 release to include a pre-built arm64 windows build. This will be the first release to include this as a pre-built option, which means that there could easily be some interesting … --- ## [Build errors on powerpc macos](https://racket.discourse.group/t/build-errors-on-powerpc-macos/3004)
**Author:** [@jjsimpso](https://racket.discourse.group/u/jjsimpso)\ **Replies:** 5\ **Last updated:** [July 10, 2024, 2:01pm UTC](https://racket.discourse.group/t/build-errors-on-powerpc-macos/3004 "2024-07-10T14:01:13Z")
I've tried to build racket on two different powerpc macs and so far have not been successful. Is there a minimum macos or xcode version that I need? Should I build BC or CS variants? I'm building from the official racke… --- ## [Compile time for unused functions might take very long time](https://racket.discourse.group/t/compile-time-for-unused-functions-might-take-very-long-time/3013)
**Author:** [@hakank](https://racket.discourse.group/u/hakank)\ **Replies:** 2\ **Last updated:** [July 10, 2024, 10:10am UTC](https://racket.discourse.group/t/compile-time-for-unused-functions-might-take-very-long-time/3013 "2024-07-10T10:10:40Z")
I'm a Racket newbie and this is perhaps a common question, but I haven't found any answers on this. Here's a simple function just returning a large list: (define slow-test (range 1 100000000)) (writeln "after") Not… --- ## [\`emacs-ob-racket\` packaged for Guix](https://racket.discourse.group/t/emacs-ob-racket-packaged-for-guix/3011)
**Author:** [@scolobb](https://racket.discourse.group/u/scolobb)\ **Replies:** 0\ **Last updated:** [July 9, 2024, 3:32pm UTC](https://racket.discourse.group/t/emacs-ob-racket-packaged-for-guix/3011 "2024-07-09T15:32:34Z")
Hi, Org Babel is the part of Org mode for Emacs allowing to execute source code blocks. Tero Hasu wrote emacs-ob-racket which is the Racket backend for Org Babel. emacs-ob-racket is now available as a Guix package … --- ## [Blogpost showcasing rosette to solve puzzle](https://racket.discourse.group/t/blogpost-showcasing-rosette-to-solve-puzzle/1950)
**Author:** [@rdivyanshu](https://racket.discourse.group/u/rdivyanshu)\ **Replies:** 4\ **Last updated:** [July 9, 2024, 11:05am UTC](https://racket.discourse.group/t/blogpost-showcasing-rosette-to-solve-puzzle/1950 "2024-07-09T11:05:33Z")
Hello everyone, I have written a blog post to show how to use rosette to solve a problem. Link - Solving a mathematic problem using Rosette --- ## [IPv6 fallback to IPv4](https://racket.discourse.group/t/ipv6-fallback-to-ipv4/1039)
**Author:** [@evdubs](https://racket.discourse.group/u/evdubs)\ **Replies:** 6\ **Last updated:** [July 9, 2024, 2:40am UTC](https://racket.discourse.group/t/ipv6-fallback-to-ipv4/1039 "2024-07-09T02:40:15Z")
I recently had an issue where my IPv6 connection was not working (ping google.com resolved to an IPv6 address and failed to get a response), but IPv4 was working (ping -4 google.com got responses). I was able to use Fire… --- ## [Racket v8.14 Release Thread](https://racket.discourse.group/t/racket-v8-14-release-thread/2997)
**Author:** [@jbclements](https://racket.discourse.group/u/jbclements)\ **Replies:** 1\ **Last updated:** [July 7, 2024, 4:08pm UTC](https://racket.discourse.group/t/racket-v8-14-release-thread/2997 "2024-07-07T16:08:12Z")
The release process for v8.14 will begin in about a week. If you have any new features that you want in and are relatively close to to being done, now is a good time to do that. Upcoming dates: - 7th: Branch day, merg… --- ## [Generate foreign procedures dynamically](https://racket.discourse.group/t/generate-foreign-procedures-dynamically/3003)
**Author:** [@bjornkihlberg](https://racket.discourse.group/u/bjornkihlberg)\ **Replies:** 4\ **Last updated:** [July 6, 2024, 7:04pm UTC](https://racket.discourse.group/t/generate-foreign-procedures-dynamically/3003 "2024-07-06T19:04:46Z")
Hello, It just struck me recently that since procedures can be locked in memory and viewed as pointers, are they arrays of instructions? Can I allocate memory and directly set each byte such that I can invoke the array … --- ## [Racket meet-up: Saturday, 6 July, 2024 at 18:00 UTC](https://racket.discourse.group/t/racket-meet-up-saturday-6-july-2024-at-18-00-utc/3005)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 0\ **Last updated:** [July 6, 2024, 9:14am UTC](https://racket.discourse.group/t/racket-meet-up-saturday-6-july-2024-at-18-00-utc/3005 "2024-07-06T09:14:09Z")
In your timezone: 2024-07-06T18:00:00Z (UTC). (converter) At this meet-up: Hybrid Meet-ups? Show and tell News & rumours AOB This meet-up will be held at https://meet.jit.si/Racketmeet-up Racket meet-ups are on th… --- ## [LangDev Conference Seville, 17-19 October 2024. CFP](https://racket.discourse.group/t/langdev-conference-seville-17-19-october-2024-cfp/3002)
**Author:** [@spdegabrielle](https://racket.discourse.group/u/spdegabrielle)\ **Replies:** 0\ **Last updated:** [July 4, 2024, 12:35pm UTC](https://racket.discourse.group/t/langdev-conference-seville-17-19-october-2024-cfp/3002 "2024-07-04T12:35:14Z")
Thought this might be interesting CALL FOR PRESENTATIONS Open now from: June 6th till July 12th. We solicit talk proposals concerning the application, development, and innovation of language engineering. https://lan… --- ## [Problems about parser-tools/lex](https://racket.discourse.group/t/problems-about-parser-tools-lex/3001)
**Author:** [@qnc](https://racket.discourse.group/u/qnc)\ **Replies:** 2\ **Last updated:** [July 4, 2024, 5:02am UTC](https://racket.discourse.group/t/problems-about-parser-tools-lex/3001 "2024-07-04T05:02:17Z")
I've been writing a parser for a compiler and wish to trace the generated syntax objects' source locations. The documentation told me to simply replace lexer with lexer-src-pos. Doing so does make the procedure produce p… --- ## [Locale for regexp-quote](https://racket.discourse.group/t/locale-for-regexp-quote/2988)
**Author:** [@sorawee](https://racket.discourse.group/u/sorawee)\ **Replies:** 1\ **Last updated:** [July 1, 2024, 6:30am UTC](https://racket.discourse.group/t/locale-for-regexp-quote/2988 "2024-07-01T06:30:19Z")
@gus-massa asked in Fix regexps docs by gus-massa · Pull Request #5027 · racket/racket · GitHub Which locale is used in regexp-quote when it compare bytes in case insensitive? (regexp-match (regexp-quote #"Á" #f) #"á… --- ## [Displaying Animated Snips in an IRacket Notebook](https://racket.discourse.group/t/displaying-animated-snips-in-an-iracket-notebook/2985)
**Author:** [@bakgatviooldoos](https://racket.discourse.group/u/bakgatviooldoos)\ **Replies:** 0\ **Last updated:** [June 28, 2024, 11:30am UTC](https://racket.discourse.group/t/displaying-animated-snips-in-an-iracket-notebook/2985 "2024-06-28T11:30:54Z")
Hi, Racket Discourse. I am currently playing around with iracket and jupyter notebooks. Such fun! I would like to structure the notebook I am busy with in the vein of the Advent of Code puzzles, where you are taken thr… [Previous page](https://racket.discourse.group/latest.md?page=26) [Next page](https://racket.discourse.group/latest.md?page=28)