Hi Sam,
I've got some pretty good general sysadmin skills. I would have to get up to
speed with some of the specific technologies but that should not be a problem.
I'm pretty much booked up to the end of the year, with lots to do but, come
January, I should be in much better shape.
James
> If you had continued reading, you would have seen my comment that NOT ALL
> news groups support list distribution or posting via email. NNTP is not
> email. Usenet group moderators[*] can choose how to make their groups
> available: the default is via list distribution and NNTP both, but
On Dec 8, 2021, at 10:45 AM, George Neuner wrote:
> It's a big deal if you are (or were) following multiple groups.
I don't understand. Why is this an issue? I find it very convenient to filter
each group into it's own folder in email. If this were a non-technical group,
you wouldn't
I notice that Discourse has a "mailing list mode" which you can set in the
preferences. I haven't had a chance to evaluate it much yet but, what I'm
hoping for is that this will allow me to use the forum pretty much the same way
as I have been using Google Groups all along. I just realized,
> I wouldn't take it as passive-aggressive per-se. It's just super confusing.
> Especially if you watch the discussion about future of Racket at RacketCon
> where Matthias has stated it pretty clearly and other confirmed that - the
> core team is doing all infrastructure maintenance
... and from there it's turtles all the way down.
On Nov 11, 2021, at 9:46 AM, David Storrs wrote:
> Sure, that's as good a definition as any.
>
> On Thu, Nov 11, 2021, 6:04 AM Yushuo Xiao wrote:
> Thank you for your comprehensive answer! It helps a lot. I also read more
> about Racket after
I'm getting an error (shown below) when trying to run any code from Emacs with
Racket Mode. It says to restart the REPL but that does not clear the problem.
It even persists through a reboot. I was on Racket 8.0 and I tried upgrading
to 8.2 to solve the problem but that did not work either.
On Aug 12, 2021, at 3:47 PM, George Neuner wrote:
> However it does suggest that he wants menubar menus. I don't use (or have
> available to check) MacOS, so I'm don't know what limitations may be on 'root
> menubars, or whether a child frame can have its own internal menubar (which
> is
On Aug 12, 2021, at 2:52 PM, Jens Axel Søgaard wrote:
> Are we talking menu bar menus or contextual menus?
>
> On macOS the menu bar menu belongs to the application and not a window.
The macOS menu bar is also contextual. It changes depending on what is
selected in the application. IIRC,
> In linux and I imagine on Windows and macOS, when there exists a vertical OS
> toolbar the values returned by get-display-size and get-client-size are the
> same and are insufficient.
The macOS version, at least, is draggable so there can be different widths on
different Finder windows at
I was there and, as I remember it, there was a presentation on something else
where this was mentioned. IIRC, the topic was Language Oriented Programming
and there was a discussion about how much complexity is okay when you are
programmatically generating DSL code. The presenter mentioned
On Apr 2, 2021, at 6:59 PM, Alex Harsányi wrote:
> Hi James,
>
> If you are worried about dependency confusion attacks, you can set up your
> own package catalog on an internal server, delete the default catalogs from
> racket and add only a reference just your internal catalog. This way,
Are you bring this up because of the recent rise of dependency confusion
attacks? In any case, it would be good to know where Racket stands with that.
On Apr 1, 2021, at 12:39 PM, Sage Gerard wrote:
> Are there any plans to publish GPG signatures for Racket installers, or
> at least
On Mar 16, 2021, at 3:24 PM, Christopher Lemmer Webber wrote:
> But "smart contracts" is a use case, a broad problem domain. What kind
> of smart contracts are you wanting to write?
I do need to research the topic a bit to make sure that what I want to do is
possible but, according to what I
On Mar 15, 2021, at 7:01 PM, Beatriz Moreira wrote:
> Hello! I recently used Racket as a tool to see the small step execution of
> some smart contract languages and I was wondering if there is anywhere i can
> submit my work or share it with the Racket community.
One place might be the
ffer yourself with something like charterm.
> I think lux with the lux-charterm might be a good way to build your terminal
> application from many little pieces that are combined to form the full
> application,
> but I haven't used it so far, would be nice to find a medium sized example
>
I am working on an example command line chat client in Racket and I need a
method to switch from text chat to commands for things like sending a binary
file or executing a utility to check the network connection. I am thinking of
something like control key combinations. What is the easiest
One workaround you could do would be to duplicate the functionality of the
button in a pulldown menu and define the keyboard shortcut there. I think it
is good general practice anyway to put all functions in the pulldown menus and
use other GUI elements only as shortcuts. This gives the user
> platform-specific dialogs through foreign functions. Whether that's a
> good option probably depends on your users.
>
> Finally, Racket CS offers access to OS-level threads through
> `ffi/unsafe/os-thread`. That's unlikely to be a good option, though,
> because it can't cooper
In Racket, does a given process have to be in a thread in order to give up time
to other threads? In other words, putting code in a thread does not guarantee
it will keep running if execution can move into other code that is not threaded?
Details:
I am working on documenting and writing
On Aug 19, 2020, at 8:53 PM, George Neuner wrote:
> Sorry, it was not clear to me that you wanted to resize widgets (child
> windows). Typically when one speaks about a window's "content" they are
> referring to text or imagery drawn onto the window's backing bitmap.
I was going by
>
> On 8/18/2020 12:31 PM, James Platt wrote:
>> I'm looking at implementing a zoom contents (not zoom window) feature in a
>> GUI with lots of elements and I'm wondering about the best way to do this.
>> Most, if not all, standard GUI widgets in Racket can be resized
I'm looking at implementing a zoom contents (not zoom window) feature in a GUI
with lots of elements and I'm wondering about the best way to do this. Most,
if not all, standard GUI widgets in Racket can be resized by changing the font
size of their contents or label. Then redraw the widget
I'm seeing a glitch with all Racket combo fields when run in Linux Mint 19.3.
When you click on the popup menu, it just flashes open for an instant and then
disappears, the first item becomes selected without actually clicking on it
with the mouse, and the callback is triggered. If you hold
I wonder if this is a more general TCP/IP issue rather than anything Postgres
specific. I'm troubleshooting an issue where a TCP connection to a server is
unexpectedly going down, once in a while, with no obvious indication. The
solution, for now, is to have the client send a sort of ping
I just added an example to Artifacts with one way of using the qresults-list
package to create a table and manipulate it with a right-click menu. I added
quite a few comments which, I hope, will help people wanting to figure out how
to use the qresults-list package. This package has been
I'm looking at profiling some code for performance and tried out the Racket
profile package but I'm not sure what the numbers mean.
Here is a very simple example:
https://stackoverflow.com/questions/23988370/thorough-guide-for-profiling-racket-code
Here's a run from my actual code:
Would virtual machines be an option? You do have to have a pretty good host
machine with lots of RAM. I do this mainly to have different development and
testing environments. It works pretty smoothly on my Mac Pro, with VirtualBox
for Linux and Windows guest machines and VMWare for macOS
On May 7, 2020, at 12:44 AM, Philip McGrath wrote:
> Rather than designing an ad hoc system of indirection that can handle all of
> the complexity,* I suggest using the one that already exists: units, Racket's
> original, first-class (rather than first-order) module system, offer support
> for
enu (make-info-menu-item row-edit-menu table3)
>
> You could also have just one "make-row-edit-menu" function which creates all
> menu items.
>
> Alex.
>
> On Thursday, May 7, 2020 at 7:50:01 AM UTC+8, James Platt wrote:
> I'm working on organizing and documen
Thanks, Jon. I'm going to try Alex's solution first but I may get back to this.
On May 6, 2020, at 8:49 PM, Jon Zeppieri wrote:
> On Wed, May 6, 2020 at 7:50 PM James Platt wrote:
>>
>> I'm working on organizing and documenting some things and I have some code,
>> bel
I'm working on organizing and documenting some things and I have some code,
below, which works but I don't understand why. Specifically, why don't I get
an error about table3 not being defined?
This is a very simplified version of what I'm working on. What I actually want
to do is put all
While we are looking at the possibility of improving The Guide, one of the
things which I find confusing in Racket documentation is that The Guide, The
Reference and various manuals all look the same. On several occasions I have
started in The Guide, followed links, and then discover that I am
> https://stackoverflow.blog/2020/02/05/the-2020-developer-survey-is-now-open/
>
> Represent!
I tried this right after I saw this message on Friday and it said that the
survey had already expired. I tried again with three different browsers, just
now, to be sure it wasn't a glitch but I got
On Feb 26, 2020, at 10:44 AM, Stephen De Gabrielle wrote:
> At 62 response, sadly the histogram doesn't show how many people use two or
> even three editors.
> https://www.surveymonkey.com/results/SM-GBD6J7ST7/
I am in transition between DrRacket and Emacs so I checked both of those two,
to display a
'#\backspace' shortcut in Linux is the serious one in terms of practicality.
On Jan 22, 2020, at 5:42 PM, George Neuner wrote:
>
> On 1/22/2020 4:44 PM, James Platt wrote:
>> I'm working on some GUI code and I am seeing some glitches with keyboard
>> shortcuts in popu
I'm working on some GUI code and I am seeing some glitches with keyboard
shortcuts in popup menus. I wonder if others are seeing the same things.
In Racket 7.5 on macOS 10.11.6 "El Captian":
Shortcuts defined in a menu-item% in a popup menu don't work unless the popup
menu is displayed. In
On Jan 4, 2020, at 4:04 PM, Robby Findler wrote:
> No Yosemite users to be found?
At some point, I should build a Yosemite VM in VMWare for testing purposes but
it isn't a priority at the moment. The thing is that Yosemite is one of those
versions of macOS where the use cases to stick with
On Dec 6, 2019, at 9:56 PM, Darth Vadør wrote:
> If it isn't too much trouble, I at least would really appreciate this.
> One reason I think this is important is because Homebrew has a cask for
> Racket, which uses the .dmg distribution. It sets up $PATH (and probably
> other things I don't
On Dec 3, 2019, at 7:09 PM, John Clements wrote:
> It sounds to me like an easy solution to your problems would be a
> .tgz-bundled set, as e.g. we offer for Minimal Racket on the page
>
> https://download.racket-lang.org/releases/7.5/
>
> specifically at the link
>
>
On Nov 27, 2019, at 12:42 PM, Darth Vadør wrote:
> I am having the same problem, and I am pretty sure that this is because the
> new DMG uses the novel APFS format, which is not readable by our old HFS
> computers.
> As far as I know, HFS DMGs can be opened on new APFS Macs; would it be
>
On Nov 25, 2019, at 1:29 PM, Stephen De Gabrielle wrote:
> Many packages contain an /examples folder, and adding examples is an easy way
> to contribute.
I did not know that. So, I guess the strategy is to find the git repository
for the package and look there? In any case, I haven't been
On Nov 21, 2019, at 6:27 PM, Alexis King wrote:
>> On Nov 21, 2019, at 11:21, James Platt wrote:
>>
>> If we can direct more of the energy of this community into, not just
>> improving the documentation, but the way we do documentation, it would be a
>> majo
On Nov 20, 2019, at 3:31 AM, Jack Firth wrote:
> Would it have helped if the get-directory documentation had included
> examples? Many parts of Racket's documentation are lacking in example code,
> especially the less-commonly-encountered parts.
Indeed, I have previously mentioned the lack
On Nov 16, 2019, at 3:49 AM, Bogdan Popa wrote:
>
> James Platt writes:
>
>> Would this now be the preferred method to include a copy of the SQLite
>> library. required by the DB module, to your distribution? The
>> software I am working on requires a n
On Nov 12, 2019, at 10:13 PM, Matthew Flatt wrote:
>> Although you can find the files using `find-share-dir` and/or
>> `find-user-share-dir`, adding a 'share mode to `define-runtime-path`
>> would make it possible for `raco distribute` to find and carry along a
>> directory/file when it's
I looking at implementing DTLS (TLS for UDP) and I see that ports->ssl-ports in
the openssl package does not specify that the port has to be TCP. Does that
mean that this should already work with UDP? If so, has anyone done much work
with this?
James
--
You received this message because
On Aug 19, 2019, at 9:24 PM, John Clements wrote:
> Perhaps you need to configure your lib-search-dir setting?
>
> https://docs.racket-lang.org/raco/config-file.html?q=lib-search-dir#%28idx._%28gentag._65._%28lib._scribblings%2Fraco%2Fraco..scrbl%29%29%29
Thanks for the help but I think
I'm having an issue where I can't seem to get Racket to run the right version
of sqlite3. At least, I'm assuming that's the problem because the syntax error
below occurs in an older version but not the current version of sqlite3. My
Terminal command path has the correct version. What can I
On Aug 6, 2019, at 1:54 PM, Tony Garnock-Jones wrote:
> How can a UDP socket survive process exit?
>
I don't knot but this appears to happen. On macOS, the open port shows in
netstat but not lsof. You can find the process ID with netstat but then, when
you go to kill it, kill says there
There is also qresults-list, which is from Alex Harsanyi's ActivityLog2
application. You can see how it is used in that application.
https://pkgs.racket-lang.org/package/qresults-list
https://github.com/alex-hhh/ActivityLog2
On Jul 22, 2019, at 7:22 AM, Roman Klochkov wrote:
>
Like others have said, I'm not sure that syntax is really the issue with Racket
adoption. For me, the difficulty in moving to Racket from other languages is
not the syntax, it's other things. Lot's of parentheses don't bother me.
Writing (2 + 2) as (+ 2 2) is a little weird but It's not
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 rendering it does is too simple. It's about on the
level of
I actually booked rooms at a hotel across the street from the Little America
for much less. In all the conferences and other events I have been to, I don't
think I have ever, even once, found the group-rate rooms at the host hotel to
be the best deal.
James
On Jun 14, 2019, at 3:40 PM,
On Jun 11, 2019, at 4:54 PM, Matthew Flatt wrote:
> At Tue, 11 Jun 2019 16:45:05 -0400, James Platt wrote:
>> It looks like there is not way to enable and disable (grey out) menu
>> items the way that there is with buttons.
>
> There's no `enable` initialization ar
It looks like there is not way to enable and disable (grey out) menu items the
way that there is with buttons. So my question is whether the expectation is
that you add and remove items from a menu instead or is this a reasonable
feature request for a new version of Racket?
To illustrate what
Another consideration with Homebrew is how far back you want to go with OS
support. They recently ended support for macOS 10.11 "El Capitan". In fact,
it's the very first thing which has become an issue for me still running El
Capitan. I don't know exactly how far back you can support with
On May 15, 2019, at 11:25 PM, Daniel Lister wrote:
> I do my racket projects using android with an external keyboard plugged in as
> well, here's how I do it:
>
> -Install termux
> -Inside termux, do a pkg install unstable-repo
> -You can now install racket
>
> I haven't had any issues so
I'm looking at the idea of writing Racket code on an ARM device. Specifically,
I have a tablet, which shipped with Android, with an external keyboard. I
have a few questions but I think I should start with the most fundamental. Is
Lineage OS the best choice or would something else be
On Mar 25, 2019, at 12:49 PM, Matthias Felleisen wrote:
> See how precise the exn message is: 2nd arg of 1st arg of f ~~ not a boolean?
Okay. So the exn message is generated in a systematic way which I can count
on. I didn't realize that. Thanks.
--
You received this message because you
On Mar 25, 2019, at 12:05 PM, Matthias Felleisen wrote:
> Your exception handlers may test a contract failure to any level. You can
> specify this in the predicate part of with-handlers or via match on the exn
> within the handler function. Regexp matching works well here.
It's obvious
On Mar 23, 2019, at 5:49 PM, Greg Hendershott wrote:
> But -- contract violations aren't like that. They're about some code
> surprising some other code. I think the only hope here is, run the
> code enough (before the user ever does) to flush out the bad code
> assumptions and fix them.
> Robby
>
> On Fri, Mar 22, 2019 at 3:09 PM James Platt wrote:
> I'm working on displaying informative error messages in a GUI and I have been
> finding that many of the things I need to handle are contract violations in
> downstream functions. The thing is that it seems like
I'm working on displaying informative error messages in a GUI and I have been
finding that many of the things I need to handle are contract violations in
downstream functions. The thing is that it seems like there ought to be a
better way than the methods I can think of.
It's very simple to
In R, I have extensively used the sqldf package, which allows you to execute
SQL commands on one or more data frames and get the results back as another
data frame. You can connect it to different database engines to handle the
SQL. Although sqlite is the default, I mostly used PostgreSQL
On Feb 14, 2019, at 9:22 PM, Alex Harsanyi wrote:
> There are two solutions I can think of:
>
> (1) derive combo-field% and override the on-popup method to construct the
> choice menu dynamically based on what is selected in the combo box field.
> This has a few disadvantages, namely (a) you
I have a situation where I want a Racket GUI combo-field% (or some other GUI
element) to allow the user to select an exact item (uniquely matching a
database key) from a list that is too long to display all at once. I'm
thinking that some form of auto completion would be best. In Framework, I
On Feb 8, 2019, at 12:51 PM, Robby Findler wrote:
> There are some messages that get held up in the spam traps that
> requires one of the admins to explicitly approve (this happens when
> the post comes from someone on the list, but where they post with a
> different email address, I believe).
I noticed recently that there have been several messages to this list which
took an excessively long time to get to me. For example, two messages from
George Neuner, which arrived today, were actually sent on Wednesday. Since I
am having messages delivered to my desktop client, I decided to
On Jan 25, 2019, at 8:51 PM, Neil Van Dyke wrote:
> Regarding hosting of the email list server... worst case, were Google Groups
> to shut down with no good migration offering... if we can't find a turn-key
> email list service we like, we could always run the time-honored MailMan on
> either
On Jan 29, 2019, at 3:08 PM, 'John Clements' via Racket Users wrote:
> For what it’s worth, I’m firmly in the “let’s wait and see” camp. I’m not
> worried about losing archives…I think I personally have just about all of the
> messages that have been posted to the google group, and I don’t
I wonder if this has anything to do with mitigation for Spectre, Meltdown or
the other speculative execution vulnerabilities that have been identified
recently. I understand that some or all of the patches affect the performance
of multi-CPU processing in general.
James
--
You received
> "/Applications/Racket v7.0/bin" >/etc/paths.d/racket`.
>
> -Philip
>
>
> On Tue, Oct 2, 2018 at 9:53 PM James Platt wrote:
> I'm just now getting back to this after returning from Racketcon. I ran
> `raco setup` as the user and again as root and it did
I'm just now getting back to this after returning from Racketcon. I ran `raco
setup` as the user and again as root and it did not solve the problem. So then
I tried `raco setup -c` but this gave permission errors (unlike the previous
commands). so I ran `sudo raco setup -c' and then `sudo
I just tried upgrading to Racket 7 on one of my machines (macOS 10.11.6) and I
get the error shown below in DrRacket. I thought I should mention it since I
am probably not the only one. I installed with the obvious method, which is to
just drag the new Racket folder over to applications as it
In the PLT Games included with Racket 7, there is a game called Jewel. It's
very much like a game from a while back that was called Jewelbox. This was
something like 20 years ago and I remember it mainly because I still have the
little drawstring bag which the disk came in. It was
No problem on macOS 10.11.6 "El Capitan", Racket 6.10, or on macOS 10.13.4
"High Sierra", Racket 6.12.
On May 7, 2018, at 8:46 PM, Alex Harsanyi wrote:
> I have a problem with the Racket GUI where the main application window looses
> focus if two dialog boxes are opened than closed. The
My company, Biomantica, is working on an SBIR grant application and we would
like to be able to include statements from people who would be willing to do
Racket contract work for us contingent on our getting the grant. What we
really need is just to show that we have people we can call on who
> May be relevant
>
> https://pkgs.racket-lang.org/package/spreadsheet-editor
Indeed, I got part way through working with that package for this exact purpose
but ran into glitches. The main thing is just a lack of documentation. At
this point, I am favoring the idea of borrowing
> I am trying to create a GUI program, my problem is that the source code for
> the
> GUI portion is growing out of control and I don't know how to split it up.
I'm not sure if this will really answer your question but you may want to look
at some code from MrEd Designer and see how it splits
On Mar 5, 2018, at 4:00 PM, Alex Harsanyi wrote:
> If you want to look at a possible implementation, I wrote a wrapper around
> list-box% for exactly the purpose of showing SQL query results in a
> list-box%. It supports sorting, adding, deleting and updating individual
> rows, and you can
I'm working on something which is leading to a cascade of questions so I
suppose that I should just start by explaining what I am trying to do. I have
written some code which takes the results of an SQL query and displays it as a
table in a GUI using list-box%. This works and I am now writing
>
> (And is the html thing really that big a deal?)
>
>
> It's likely that part of the reason they were caught in a spam trap was
> because they were HTML and formatted with both very large font and half a
> dozen different colors. Also, as George points out, HTML formatting gets
> fouled
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