This is PR 10954.
On Sat, Jun 12, 2010 at 5:32 PM, Todd O'Bryan wrote:
> Here's a minimal example of what I think is a bug:
>
> #lang racket
>
> (define (blah #:foo foo #:bar bar)
> (+ foo 2))
>
> (blah #:bar 3)
>
> Running it causes:
>
> blah: requires an argument with keyword #:foo, not suppli
On Sun, Jun 13, 2010 at 2:51 AM, Neil Van Dyke wrote:
> 2. What was the rationale for not having "pair?", "car", "cdr", work on both
> mutable pairs and immutable pairs? Was this to push everyone harder towards
> immutable pairs, at the cost of having to convert legacy libraries and
> breaking R5
To quote from Jose's documentation:
"I’ve concentrated initially in supporting those Schemes with the
richest (to my knowledge) introspection capabilities, namely, Guile
and Racket."
I assume it's running mostly elisp underneath. :)
On Thu, Jun 24, 2010 at 9:28 AM, Shriram Krishnamurthi
wrote
#lang racket
(require racket/trace)
(define (f x)
(if (zero? x) "done" (f (sub1 x
(trace f)
(f 100)
On Sun, Jun 27, 2010 at 12:54 AM, Insik Cho wrote:
> Hi buddies,
> I want to trace calls of a function with (require trace), but it doesn't
> work.
> What can I do to trace calls of a fun
On Sun, Jun 27, 2010 at 8:40 AM, Laurent wrote:
>
>
> On Sun, Jun 27, 2010 at 14:35, Sam Tobin-Hochstadt
> wrote:
>>
>> #lang racket
>>
>> (require racket/trace)
>>
>> (define (f x)
>> (if (zero? x) "done" (f (sub1 x
>>
On Wed, Jun 30, 2010 at 4:54 PM, Eli Barzilay wrote:
>
>
> Also, I think that Google uses dmoz for the search result blurbs,
That definitely doesn't seem to be the case here, since Racket doesn't
seem to be on dmoz at all. Google takes the snippet from the page
directly.
--
sam th
sa...@ccs.ne
On Fri, Jul 2, 2010 at 2:39 PM, John Floren wrote:
> I thought I'd give racket a shot on my new FreeBSD/sparc64 system, but
> in compiling it I ran into a problem:
>
> make racketcgc
> `racketcgc' is up to date.
One thing to try is 'make cgc', which just builds the version with the
conservative c
On Sun, Jul 4, 2010 at 6:45 PM, Matthew Flatt wrote:
> At Sun, 4 Jul 2010 16:26:21 -0400, Eli Barzilay wrote:
>> On Jul 4, Matthew Flatt wrote:
>> > [...]
>> >
>> > * A subprocess can create any number of sub-subprocesses itself, and
>> > there's no way to kill those, which isn't very custodi
On Mon, Jul 5, 2010 at 10:09 AM, Jose A. Ortega Ruiz wrote:
>
> but, if we want to define a non-procedural value in an analogous fashion:
>
> (: carrow (All (E) (C (Arrow E
> (define carrow
> (C #{compose-arrows :: ((Arrow E) (Arrow E) -> (Arrow E))}))
>
> the type checker complains that
This seems to work for me:
#lang racket
(require racket/runtime-path (for-syntax racket/file))
(define-runtime-path-list p (find-files (λ (x) (regexp-match "[.]tex$" x
Probably you were missing the `for-syntax' require.
On Mon, Jul 5, 2010 at 1:47 PM, Laurent wrote:
> Hi,
>
> I'd like to bu
2010/7/5 Laurent :
>
>
> Now another question:
> I'm in fact using `find-files' inside a function, say `find-files-ex', that
> is declared in the same file and used in the `define-runtime-path-list'
> call.
> The problem is that this function must be available both at compile time and
> at runtime
On Tue, Jul 6, 2010 at 7:00 PM, Neil Toronto wrote:
> I'd like to use Typed Racket to create an interpreter for a typed lambda
> calculus, which *inherits* Typed Racket's type system. (In other words, I'm
> lazy and I don't want to make my own type system. But who does? Except maybe
> Sam? :p) I w
On Sat, Jul 10, 2010 at 12:52 AM, Skeptic . wrote:
>
> I was trying to come up with a naive implementation of check-expect/test and
> I found out that if a macro expands to a set! on a module-level variable
> directly, an error will be given when using the macro from another module. A
> simple
On Sat, Jul 10, 2010 at 6:03 PM, Paulo J. Matos wrote:
> Hi all,
>
> I have two questions regarding match. Hopefully both have an answer.
>
> One of the things I would like to do in a match is to in the pattern
> have a variable to stand for a given pattern and at the same time be
> able to match
On Wed, Jul 28, 2010 at 1:44 PM, Matthias Felleisen
wrote:
>
> (Nothing about futures. But may I recommend a nice and simple 'optimization':
>
> (cond
> [(= 1 (length values)) ...]
>
> adds quite some complexity to a recursive function over a list.
> I'd use
>
> (empty? (rest values))
>
> ins
On Mon, Aug 2, 2010 at 9:48 AM, Keiko Nakata wrote:
> Or, call/cc does not capture the state?
`call/cc' does not capture the state of the heap (such as the contents
of boxes).
--
sam th
sa...@ccs.neu.edu
_
For list-related administrative tasks:
Thanks for this detailed account (and for trying it out). I have some
questions inline:
On Sat, Jan 2, 2021 at 5:34 PM Dominik Pantůček
wrote:
> And now for the worse part. TR rough edges:
>
> * Higher-order procedures and polymorphic functions in all imaginable
> combinations. That was a total
On Wed, Jan 20, 2021 at 5:16 PM Dominik Pantůček
wrote:
>
> Hi Sam,
>
> I went through all my notes and prepared minimal (sometimes) working
> examples for most of the issues I mentioned. Let's go through it one by
> one. I assume that some of the complications I encountered were because
> my lack
Unfortunately this isn't supported yet. Right now, you can use struct
type properties directly to build your own generics, but you can't use
the generics library.
Sam
On Sat, Jan 30, 2021 at 4:20 AM Stuart Hungerford
wrote:
>
> Hi Racketeers,
>
> Is there any way to have Racket code using `defin
This means that you're building with a previous version of Racket that is
too old (which might be quite recent but is nonetheless too old to use in
place of bootstrapping).
Sam
On Fri, Feb 5, 2021, 6:44 PM 'Killian Zhuo (KDr2)' via Racket Users <
racket-users@googlegroups.com> wrote:
> Here is m
w enough...
>
> Greetings.
>
> Killian Zhuo (KDr2, https://kdr2.com)
>
>
>
> On Saturday, February 6, 2021, 07:47:41 AM GMT+8, Sam Tobin-Hochstadt <
> sa...@cs.indiana.edu> wrote:
>
>
> This means that you're building with a previous version of Racket t
I think there's a typo in your program -- there's an extra "br" in the
name of `racket/function`.
Sam
On Mon, Feb 15, 2021 at 11:58 AM Gowthaman Basuvaraj
wrote:
>
> open-input-file: cannot open module file
> module path: racket/functionbr
> path: /home/gowthaman/racket/collects/racket/functio
This seems like it would be a nice addition. I think starting with a
PR is the right place to begin.
Sam
On Wed, Feb 17, 2021 at 7:01 PM 'William J. Bowman' via Racket Users
wrote:
>
> One of my students asked about making the Racket docs navbar sticky and
> scrollable, to help when navigating
Unfortunately, it's old versions of Racket that don't support this,
and adding error messages there will have the same problem as fixing
them -- they're already out there and on people's computers. However,
this will be fixed in the next release of Racket.
Sam
On Tue, Feb 23, 2021 at 6:49 AM Roge
Github doesn't require making your email address public.
Sam
On Tue, Feb 23, 2021 at 12:19 PM Hendrik Boom wrote:
>
> On Sat, Feb 20, 2021 at 11:47:19PM +0700, Roger Keays wrote:
> > Has any consideration been given to concealing email addresses on
> > pkgs.racket-lang.org for privacy purposes?
You can use the value-contract function, along with contract-stronger? to
do this.
Sam
On Wed, Feb 24, 2021, 6:03 PM David Storrs wrote:
> I have some macros that generate functions. For testing purposes, I'd
> like to be able to ask the function "Do you have this contract
> ?" Is there a way
When Chez is faster than Racket CS, the usual culprits are either:
- mutable pairs
- very large code size that causes Racket CS to interpret the outer module
However, neither of those seem to be happening here.
Sam
On Mon, Mar 1, 2021 at 2:39 AM philngu...@gmail.com
wrote:
>
> There’s this benc
First, there's no longer a difference because yjqww6 just had a PR
merged that improves the Racket performance.
The performance difference that was there was mostly because the Chez
code was run with `--optimize-level 3` which turns off safety. If that
was changed to `--optimize-level 2` the timin
ce slower.
>
> On Wednesday, March 3, 2021 at 11:12:30 AM UTC-8 Sam Tobin-Hochstadt wrote:
>>
>> First, there's no longer a difference because yjqww6 just had a PR
>> merged that improves the Racket performance.
>>
>> The performance difference that was ther
I think you want to add `#:property prop:custom-print-quotable 'never`
to that struct declaration, and then it will behave as you wanted.
Sam
On Thu, Mar 4, 2021 at 11:44 AM Dimaugh Silvestris
wrote:
>
> I have a struct defined as:
> (struct ugen sc.unit (name rate inputs)
> #:methods gen:cust
On Thu, Mar 4, 2021 at 3:24 PM Dimaugh Silvestris
wrote:
>
> On Thu, 4 Mar 2021 at 19:29, Sam Tobin-Hochstadt wrote:
>>
>> It doesn't print that way because that wouldn't turn back into the original
>> value when evaluated, since it's quoted.
>
>
I believe it's
https://github.com/racket/racket/commit/0561d71e60502fa857b0d169f64da723584d96d6
Sam
On Sun, Mar 7, 2021 at 8:52 PM Greg Rosenblatt wrote:
>
> Great, thanks. Out of curiosity, where in the reader was this bug
> originally? Can you point me to a diff?
>
> On Sunday, March 7, 20
I think Aaron Turon's reagents (and more generally k-cas) are an example of
N-way rendezvous.
Sam
On Mon, Mar 15, 2021, 5:50 PM Matthew Flatt wrote:
> At Mon, 15 Mar 2021 13:38:46 -0700 (PDT), Greg Rosenblatt wrote:
> > Is there a corresponding event for a logical conjunction (I was looking
> f
r. Is there anything CML can express that
> reagents have trouble with? How does the implementation complexity compare?
>
> On Monday, March 15, 2021 at 8:12:03 PM UTC-4 Sam Tobin-Hochstadt wrote:
>
>> I think Aaron Turon's reagents (and more generally k-cas) are an example
Here's a somewhat-optimized version of the code:
#lang racket/base
(require racket/string racket/vector racket/port)
(define h (make-hash))
(time
(for* ([l (in-lines)]
[w (in-list (string-split l))]
[w* (in-value (string-downcase w))])
(hash-update! h w* add1 0)))
(define v
2021 at 11:28 AM Sam Tobin-Hochstadt
wrote:
>
> Here's a somewhat-optimized version of the code:
>
> #lang racket/base
> (require racket/string racket/vector racket/port)
>
> (define h (make-hash))
>
> (time
> (for* ([l (in-lines)]
> [w (in-list (st
18, 2021 at 7:22:10 PM UTC bogdan wrote:
> >
> >> I managed to get it about as fast as Python by making it really
> >> imperative and rolling my own hash:
> >>
> >> https://gist.github.com/Bogdanp/fb39d202037cdaadd55dae3d45737571
> >>
> >
something new.
>> >
>> > Many thanks,
>> > Pawel
>> >
>> > On Thursday, March 18, 2021 at 7:22:10 PM UTC bogdan wrote:
>> >
>> >> I managed to get it about as fast as Python by making it really
>> >> imperative and rolling m
Another possibility is to send a message on a channel when the user is
set, and then just wait with `sync` for a message to appear on the
channel.
Sam
On Fri, Mar 19, 2021 at 12:02 PM Jay McCarthy wrote:
>
> The best thing is to use a semaphore instead of a mutable reference.
> If you can't do t
small speed-ups? On my machines, if I
> run the same program twice, I can sometimes see more than 10% time difference.
>
> On Fri, Mar 19, 2021 at 4:10 PM Sam Tobin-Hochstadt
> wrote:
>>
>> Use `#:authentic`, and `unsafe-vector*-{ref,set!}` saved about 50 more
>>
This should be fixed now.
Let this be a lesson about ignoring warnings about out-of-date software. :)
Sam
On Thu, Apr 1, 2021 at 11:59 AM David Storrs wrote:
>
> Not sure where the right place is to report this, but the certificate for
> pkgd.racket-lang.org expired on 3/31/2021.
>
> --
> You
I don't think we have plans to start signing installers. The code that
creates installers is in the `distro-build` package, and the use of
sha1 is here:
https://github.com/racket/distro-build/blob/21ccc39fc14408eea79aff035e508856a66adf89/distro-build-server/pack-built.rkt#L76
Sam
On Thu, Apr 1,
You might use `(list 'value-evt)` if that's the require you want.
Sam
On Thu, Apr 1, 2021 at 3:41 PM David Storrs wrote:
>
> I cargo-culted this chunk of code and, predictably, it is now failing
> for reasons I don't understand. This is in the value-evt scribble
> file; it works fine when I bui
There is indeed signing for Ubuntu ppas, but that's specific both to apt
and to the ppa system.
Sam
On Fri, Apr 2, 2021, 9:29 PM Sage Gerard wrote:
> No, I'm just looking for extra confidence when verifying installers.
>
> On that note, did Ubuntu require someone to sign packages to distribute
On Thu, Apr 15, 2021 at 4:21 PM Dominik Pantůček
wrote:
>
> Hello Racketeers,
>
> >> * Math/Fixnums/Flonums: All fx+/-/*/... accept two arguments only. No
> >> unary fl-, no variadic-argument fl+ or fxior (this one hurt the most).
> >
> > These definitely became variadic after the type definitions
To improve this, we'd have to extend the type of `fxquotient`, which
is reasonable, but I'm not sure what the addition would be. In
particular, your addition is not sound:
(fxquotient 1024 2) produces 512 which is not a Byte.
Sam
On Thu, Apr 15, 2021 at 6:22 PM Dominik Pantůček
wrote:
>
> Hello
ace racket/unsafe/ops with TR to provide
> compile-time type consistency and to have modules which are internally
> consistent and if they are used with other TR code the consistency
> remains. More on that later.
>
> On 16. 04. 21 15:51, Sam Tobin-Hochstadt wrote:
> > To i
On Sun, Apr 18, 2021 at 3:05 AM Dominik Pantůček
wrote:
>
> 0. Thank you very much for looking into this.
>
> On 18. 04. 21 4:57, Sam Tobin-Hochstadt wrote:
> > Ok, three parts:
> >
> > 1. Is it possible to make `average` on `Byte` provably produce a
> > `Byt
It's a little more complicated than that -- the _constraints_ have to
be linear -- that is, the expressions in the refinements, but the
expressions reasoned about can be more general. However, it doesn't do
very much useful with multiplication by bounded values at the moment.
Sam
On Mon, Apr 19,
On Mon, Apr 19, 2021 at 3:19 PM Dominik Pantůček
wrote:
>
> >>>
> >>> However, I would suggest that the right fix here is to use refinement
> >>> types, and specify exactly what you want. Unfortunately, the
> >>> refinement types feature (good intro here:
> >>> https://blog.racket-lang.org/2017/11
This is a bug. It's not the the contract is unsatisfiable, it's that it's
too satisfiable. The contract system could probably make this work, but
Typed Racket should probably avoid this situation.
Sam
On Fri, Apr 30, 2021, 2:07 AM 'John Clements' via Racket Users <
racket-users@googlegroups.com>
I think there's two things you're seeing.
1. The results hadn't yet updated for your typed-compose change. I no
longer see a conflict here: https://pkg-build.racket-lang.org/
2. The conflicts page is for _all_ the packages in the whole package
catalog. That's why it always mentions mischief.
The
You might also be interested in the new `raco-pkg-env` tool:
https://github.com/samdphillips/raco-pkg-env/
Sam
On Tue, May 18, 2021 at 12:20 PM Matthew Flatt wrote:
>
> Yes, this approach can work. I don't think the existing Racket tools
> will help much with persisting a configuration across ve
It's not quite as convenient, but here's a version of your program
that should work:
(let ([conn #f])
(dynamic-wind
(lambda () (set! conn (connect-to-server))
(lambda () (send-message conn "foo"))
(lambda () (finalize-connection conn
Sam
On Tue, May 18, 2021 at 2:08 PM David St
#x27;s easier to see what the code should do before
> getting into the weeds of error handling.
>
> (I probably should have put these details in the original message but I was
> trying to keep it simple so as not to make people burn brain cycles.)
>
> On Tue, May 18, 2021 a
at we should have, and we
are sorry.
If you wish to offer your thoughts to the people named below, the
email address feedb...@racket-lang.org will reach us directly.
Jay McCarthy
John Clements
Matthew Flatt
Robby Findler
Sam Tobin-Hochstadt
[Matthew Butterick's recent po
This is indeed an issue where "the top-level is hopeless" is the problem [1].
However, there's a better work-around. You can write `(define-syntaxes
(name.r ...) (values))` to forward-declare all those names, and then
the subsequent definitions will work correctly.
Sam
[1] https://lists.racket-l
On Mon, Jun 28, 2021 at 9:46 PM Jonathan Simpson wrote:
>
> On Sunday, June 27, 2021 at 10:29:55 AM UTC-4 Robby Findler wrote:
>>
>> Replacing ` (~r x #:precision 1)` with `(number->string x)` and ditto for
>> `y` eliminates the overhead of contracts and brings about another 4x speedup
>> on my
On Tue, Jun 29, 2021 at 12:04 PM Jonathan Simpson wrote:
>
> On Monday, June 28, 2021 at 10:25:36 PM UTC-4 Sam Tobin-Hochstadt wrote:
>>
>> On Mon, Jun 28, 2021 at 9:46 PM Jonathan Simpson wrote:
>> >
>> > On Sunday, June 27, 2021 at 10:29:55 AM UTC-4 Robby
Unfortunately, this has had larger impact than we expected, because a
number of places linked directly to mirror.racket-lang.org, which
normally hosts downloads. That machine will be down until July 2. In
particular, this seems to affect the setup-racket GitHub Action and
the homebrew formula for R
Your "only remaining idea" is what I'd recommend for telling another
place what function to run (that's how dynamic-place works in the
first place). But your [details] sounds worrying. I just tested on my
machine and it didn't happen for me, and I don't think it's supposed
to happen on other platfo
Ah, this must be a case where different platforms behave differently,
because I still see other threads running even with
`finder:std-get-file` on Linux.
Sam
On Thu, Jul 1, 2021 at 2:58 PM David Storrs wrote:
>
>
>
> On Thu, Jul 1, 2021 at 2:42 PM Sam Tobin-Hochstadt
> wrote:
&
The Racket team recently became aware of a security vulnerability in
the `racket/sandbox` library. Code evaluated using a sandbox could
cause system modules to incorrectly use attacker-created modules
instead of their intended dependencies. This could allow system
functions to be controlled by the
Currently, the implementation of https://pkgs.racket-lang.org as well
as https://pkg-build.racket-lang.org (see Notes) is primarily
maintained by Matthew Flatt, although much of it was originally
written by Jay McCarthy and Tony Garnock-Jones (for pkgs in
particular). Matthew of course wears a lot
up to the end of the year, with lots to
> do but, come January, I should be in much better shape.
>
> James
>
> On Dec 7, 2021, at 3:30 PM, Sam Tobin-Hochstadt wrote:
>
> > Currently, the implementation of https://pkgs.racket-lang.org as well
> > as https://pkg-bui
It appears that enabling this is quite simple. I believe I have set it
up so that emailing racket+uncategorize...@discoursemail.com should
create a new topic in the Uncategorized category. Feel free to test it
out.
Sam
On Thu, Dec 9, 2021 at 8:27 AM Stephen De Gabrielle
wrote:
>
> > it’s becomin
One thing to note here: it's now not possible to _request_ to join the
list. If someone wants to join the list, they have to know someone who
is already a member and ask them to join.
It looks like another option is "Anyone on the web can ask" to join.
It's not immediately clear who gets the email
in" no matter what, so the mailing list configuration is relevant
>> for a different reason. Do we want members to start the process in Google
>> Groups, or by sending an email to a fixed address?
>>
>> On 1/11/22 1:51 PM, Robby Findler wrote:
>>
>> P
s
> disguise permission issues, so I suspect that switching to "ask to join"
> will make that problem go away too.
>
> On 1/12/22 1:00 PM, Sam Tobin-Hochstadt wrote:
>
> > Here's my suggestion: we switch to "ask to join" on Google Groups. I
> > thi
I don't think that you need to remove `t`. Instead, your problem is
that somewhere something is calling `collection-path` with "t" as an
argument. If you provide more information about the context and the
error message, it would be easier to help here.
Sam
On Mon, Aug 8, 2022 at 11:31 AM Don Gree
We're using the free-for-open-source plan from Discourse:
https://free.discourse.group/
Sam
On Fri, Jul 21, 2023 at 1:13 PM Ryan Johnson wrote:
> Thanks
>
> How did you guys get a discourse.group subdomain? I visited
> discourse.group and the domain is unreachable.
>
> What software is it runni
I think there are some purely functional data structures that you can
use here. Two examples:
- Random Access Lists implemented in Hari Prashanth's Typed Purely
Functional Data Structures [1]
Some of the other data structures here, such as VLists, may also be helpful.
- David Van Horn's RAL
On Thu, Sep 1, 2011 at 9:43 AM, J. Ian Johnson wrote:
> I have a list of symbols '(a b c) that I want to be printed "a b c" as part
> of string I'm formatting.
> 2) Is there a better way to write my first attempt without changing format
> string?
Here is another possibility:
(with-output-to-s
On Thu, Sep 1, 2011 at 3:43 PM, Matthew Flatt wrote:
> Instead of `#:info', you want to specify `#:language-info'.
>
> The `#:info' hook is for things related to the *source* of a module in
> the language, such as syntax coloring in DrRacket for a module that
> start `#lang Z'. The plain `racket'
On Fri, Sep 2, 2011 at 4:33 PM, Danny Yoo wrote:
>
> We have a few programs and some initial documentation on this. The
> documentation for the web-world API is:
>
> http://hashcollision.org/whalesong/#(part._.The_web-world_.A.P.I)
>
>
> Here are two toy examples. (Note: try the examples in C
On Sat, Sep 3, 2011 at 3:38 PM, Shriram Krishnamurthi wrote:
> I have a define form that expands into two two definitions. Usually I can
> write
>
> (my-define ...) ==> (begin (define ...) (define ...))
>
> However, this doesn't interact well with local. Is there a way of
> identifying that I'm
On Sat, Sep 3, 2011 at 5:04 PM, Doug Orleans wrote:
>
> Better yet, package it into a .deb, which, when you double-click on
> it, will launch the Ubuntu Software Center and install it.
There's and Ubuntu PPA here:
https://launchpad.net/~plt/+archive/racket maintained by Jon Rafkind.
Probably the
On Sat, Sep 3, 2011 at 5:26 PM, Doug Orleans wrote:
> On Sat, Sep 3, 2011 at 5:09 PM, Sam Tobin-Hochstadt wrote:
>> There's and Ubuntu PPA here:
>> https://launchpad.net/~plt/+archive/racket maintained by Jon Rafkind.
>
> Huh, neat, thanks. That page says you have
On Mon, Sep 5, 2011 at 11:50 AM, Shriram Krishnamurthi
wrote:
> In a syntax-case, I can obtain the term being processed: eg,
>
> (define-syntax (foo stx)
> (syntax-case stx ()
> [... (with-syntax ([term stx]) ... #'term)]))
>
> In syntax-id-rules, the RHS is like a syntax-*rules*, so I don't k
On Mon, Sep 5, 2011 at 2:36 PM, Danny Yoo wrote:
> On Fri, Sep 2, 2011 at 4:33 PM, Danny Yoo wrote:
>> We're smack in the middle of implementing web-world for Whalesong,
>> which is analogous to regular world, but with web pages. Unlike
>> regular world, the callbacks in web-world take in both t
What would be printed for cycles?
On Mon, Sep 5, 2011 at 9:56 PM, Shriram Krishnamurthi wrote:
> Just in case my example is misleading, I want to suppress ALL shared
> printing if possible.
> _
> For list-related administrative tasks:
> http://lis
On Thu, Sep 8, 2011 at 11:48 PM, Robby Findler
wrote:
> I've changed how online check syntax reports errors. Instead of
> hilighting the source location in gold, it puts a little reddish thing
> in the right-hand margin where the error is. The goal is to make this
> less obtrusive in, say, lecture
On Fri, Sep 9, 2011 at 11:23 AM, Grant Rettke wrote:
> Hi,
>
> At work I've inherited a financial application whose model that is too
> complicated to be documented.
>
> It has got me really curious how I might use Racket to document,
> understand, and implement the model so that we can really fle
On Fri, Sep 9, 2011 at 6:08 PM, Robby Findler
wrote:
> On Fri, Sep 9, 2011 at 10:04 AM, Sam Tobin-Hochstadt
> wrote:
>> Speaking of things that would improve the experience of those who keep
>> parens balanced, if the error message appearing didn't move the
>> div
I'm definitely in favor of the alpha fanciness idea. The others seem
reasonable as well, though.
sam th
On Sep 9, 2011 8:09 PM, "Robby Findler" wrote:
> On Fri, Sep 9, 2011 at 5:42 PM, Sam Tobin-Hochstadt
wrote:
>> On Fri, Sep 9, 2011 at 6:08 PM, Robby Findler
>>
On Sun, Sep 11, 2011 at 1:44 PM, Jeremy Kun wrote:
> Is there an existing Racket analogue for the "define-type" language form
> from the PLAI text? Is there a quick way for me to just (require-syntax
> define-type) so I can use it in my otherwise purely-Racket programs? Or
> perhaps, is there a wa
On Thu, Sep 15, 2011 at 10:29 PM, Eric Dobson wrote:
> Currently macros written from Typed Racket can not be used in the
> untyped world.
> Example:
>
> #lang racket/load
>
> (module t typed/racket
> (provide foo)
> (define-syntax (foo stx)
> #'(+ 2 1)))
>
> (module u racket
> (require 't)
>
On Wed, Sep 21, 2011 at 10:24 PM, Robby Findler
wrote:
>
> Did anyone check and see if there are any uses of (define (let ()
> ...)) in the tree or on planet?
I know I've used this idiom, and even more:
(define-values (x y) (let () ...))
--
sam th
sa...@ccs.neu.edu
___
This past week, I wrote some parallel Racket versions of benchmarks
for the Computer Language Shootout. It was fun to do, and I wrote a
little bit about what I learned:
http://scriptstoprograms.wordpress.com/2011/09/25/benchmarketing/
One unfortunate bit -- it's hard to combine the `place' form a
On Mon, Sep 26, 2011 at 12:56 PM, Danny Yoo wrote:
> An alternative to the APK stuff, offline web-app using HTML 5's
> application caching, is also in place. See:
>
> http://hashcollision.org/tmp/where-am-i/where-am-i.html
This doesn't seem to do anything with the local storage for me, on Fir
On Wed, Sep 28, 2011 at 10:36 AM, Marijn wrote:
>
> recent talk about internal define being considered the preferred style
> made me focus on trying to use it more in my own code and resulted in
> some thoughts which I'd like to throw out there without much sanity
> checking on my part.
>
> Consid
You should reply to the email that you recieved from the bug system,
keeping the original subject line. All emails to the bug system are
automatically handled and added to the correct bug.
On Thu, Sep 29, 2011 at 8:30 AM, Eddie Rucker wrote:
> I made a mistake and would like to edit the bug repo
The videos are still being processed, and I hope they will be up soon,
but I don't have an estimated date.
On Fri, Sep 30, 2011 at 12:50 PM, Eric Tanter wrote:
> Hi,
>
> It seems that the videos of RacketCon are not online yet. Is there an
> estimated release date?
>
> Thanks,
>
> -- Éric
>
> __
Your path needs to have the *directory* that `drracket' is in, not the
file itself. $PATH is a list of directories.
On Sat, Oct 1, 2011 at 7:51 AM, michael rice wrote:
> Just installed the 64-bit Linux Fedora 14 version (I'm using F15), but seem
> to be having a problem starting it up.
> [micha
On Sat, Oct 1, 2011 at 2:51 PM, Neil Toronto wrote:
>
> You know what would convince me the most? Find me a great name for the new
> library that contains the word "plot". It should be clever and sound
> official.
Why does it need to include 'plot'? What about "chart" or "graph" or
"visualize"?
Since Matthew added nice programmatic tools for understanding the
behavior of the GC, I've written a little tool to summarize the GC
behavior of your program. You can find it on GitHub here:
https://github.com/samth/gcstats . To install it, do this:
% git clone git://github.com/samth/gcstats.git
On Mon, Oct 3, 2011 at 2:25 AM, Jukka Tuominen
wrote:
>
> Sorry for thinking aload again, but I'm learning these issues myself in the
> background, and I wonder if something like the following might work?
>
> Concurrent List Processing -idea
>
> Two phase process
>
> 1) Distribution phase
> Creat
On Wed, Oct 5, 2011 at 12:48 AM, Asumu Takikawa wrote:
>> Also if there are any articles that discuss the design decisions about
>> Racket where it has diverged from the usual or standard form of Scheme.
>> Not just where it differs but why it was made different.
>
> Off the top of my hea
On Thu, Oct 6, 2011 at 8:16 AM, Paulo J. Matos wrote:
> On 05/10/11 15:26, Stephen Bloch wrote:
>>>
>>> I am wondering if there's anything in place already to create an image
>>> thumbnail. This is basically resizing an image.
>>
>> In the student graphics libraries (2htdp/image and picturing-prog
I don't plan to change it, but I do plan to move it to `racket/match'.
On Tue, Oct 11, 2011 at 2:51 PM, Brian Mastenbrook
wrote:
> What is the likelihood that the == match expander from unstable/match is
> going to change in the future? It hasn't been changed since it was added
> almost two years
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