First of all, . won’t work in standard Racket because . has a special
meaning (see
https://docs.racket-lang.org/reference/reader.html#%28part._parse-pair%29).
But yes, this is directly related to the discussion above because with the
field name information, you can write your own accessor.
#lang
> On Jun 14, 2019, at 4:34 PM, Matthew Flatt wrote:
>
> Sometimes, staying out of the error-triggering space is unavoidable,
> and the possible errors are well enough defined by all filesystems, so
> retrying is a workable solution. If you really have to be in that
> space, then retry an arbitr
At Fri, 14 Jun 2019 15:26:17 -0700, Matthew Butterick wrote:
>
>
> > On Jun 13, 2019, at 6:43 PM, Matthew Flatt wrote:
> >
> >
> > Oh, don't do that. Unreliable workarounds to concurrency problems
> > really do come back to bite you later.
>
> To ask the second dumbest possible question, what
Eric Eide writes:
> You might be interested in Xsmith. Version 1.0 will be released imminently,
> like within the next week. I'll send another email when it's released.
To follow up in this thread, Xsmith version 1.0.0 is now available. You can
find it in the Racket package catalog:
https://p
Hello,
While we are at it: is it theoretically possible in Racket or Typed Racket (or
will be possible in Racket 2 or Typed Racket 2) to access struct fields without
repeating the name of the struct type again?
Like in C
typedef struct
{
double x;
double y;
} VeryLongStructureName;
VeryL
I am pleased to announce that Xsmith version 1.0.0 is now available. You can
find it in the Racket package catalog at:
https://pkgs.racket-lang.org/package/xsmith
Xsmith is a library for creating fuzz testers, also known as "fuzzers," for
programming language compilers and interpreters. In ot
> On Jun 13, 2019, at 6:43 PM, Matthew Flatt wrote:
>
>
> Oh, don't do that. Unreliable workarounds to concurrency problems
> really do come back to bite you later.
To ask the second dumbest possible question, what error-recovery policies are
reliable under concurrency? (Put another way, wh
Right --- the goal is not to provide the cheapest possible
accommodations but to recommend a pretty good hotel and to try to
improve the rate there. You should book at the Little America if that
kind of hotel appeals to you.
As full disclosure, RacketCon does lose some money if it turns out that
I
Very generous, thank you!
Robby
On Fri, Jun 14, 2019 at 4:24 PM David Storrs wrote:
>
>
>
> On Fri, Jun 14, 2019 at 5:16 PM Robby Findler
> wrote:
>>
>> Not that you should change your system/plans, but attendees booking
>> rooms at the hotel is actually part of what helps to pay for the event
On Fri, Jun 14, 2019 at 5:16 PM Robby Findler
wrote:
> Not that you should change your system/plans, but attendees booking
> rooms at the hotel is actually part of what helps to pay for the event
> (because of the way the contracts between the event and the hotel
> works). In this case, I don't t
Not that you should change your system/plans, but attendees booking
rooms at the hotel is actually part of what helps to pay for the event
(because of the way the contracts between the event and the hotel
works). In this case, I don't think there is any issue and RacketCon
is, as far as I know, fin
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, Matth
If you're attending just RacketCon, there are still some group-rate
rooms available at the Little America Hotel --- but you'll need to act
fast. Our guaranteed group reservation has expired, but they'll
continue to accept group reservations as long as space remains.
See
https://con.racket-lang.
On Fri, Jun 14, 2019 at 10:45 AM Sanjeev Sharma wrote:
> within this for loop is there any way to access different pieces of the
> description and amt? car-ing and cdr-ing for example?
>
I'm not entirely clear on what you're looking for, but maybe this helps?
(define lst '(a b c))
(for ([(val
It's here!!!
https://racket-news.com/2019/06/racket-news-issue-10.html
Have a good weekend,
--
Paulo Matos
--
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 rac
I am not entirely sure this answer is what you are looking for, but the
following generator
will produce the pairs of the list instead of the elements.
(define (in-pairs xs)
(make-do-sequence
(λ ()
(define (pos->element p) p)
(define (next-position p) (cdr p))
(define initial-p
On Thu, Jun 13, 2019 at 11:50 PM Sorawee Porncharoenwase <
sorawee.pw...@gmail.com> wrote:
> Hence the question: why struct type doesn’t include field names?
>
struct-plus-plus (
https://docs.racket-lang.org/struct-plus-plus/index.html#%28part._.Reflection%29)
gives you full reflection data,
At Thu, 13 Jun 2019 20:50:34 -0700, Sorawee Porncharoenwase wrote:
> Hence the question: why struct type doesn’t include field names?
It was an early design decision. There didn't seem to be a need to keep
field names, and so we left them out for simplicity. That may seem
difficult to believe, giv
cat is from srfi/54
On Friday, June 14, 2019 at 10:45:10 AM UTC-4, Sanjeev Sharma wrote:
>
> within this for loop is there any way to access different pieces of the
> description and amt? car-ing and cdr-ing for example?
>
> Or move the identifier definitions into the let*, and pass those to for
within this for loop is there any way to access different pieces of the
description and amt? car-ing and cdr-ing for example?
Or move the identifier definitions into the let*, and pass those to for in
some way?
(let*((ratio 9/12))
(for((description(list "this" "that"))
(amt(list 4467.
You may be interested in
https://github.com/adjkant/web-sourcery (wip)
> On Jun 14, 2019, at 3:15 AM, Gregor Kopp wrote:
>
> Thank you very much!
> It's hot here...
>
> Am Freitag, 14. Juni 2019 08:58:53 UTC+2 schrieb Tom Gillespie:
> https://github.com/Junker/routy found via `rack
On 6/14/19, Gregor Kopp wrote:
> Hi!
> I found here docs: https://docs.racket-lang.org/routy/
> I'd like to try this for fast prototyping, but can't find the package as my
>
> google-fu is sloppy I guess.
> Any help please, sirs and madams?
Another option: search for "routy" at pkgs.racket-lang.o
> On Jun 1, 2019, at 7:47 PM, Matthias Felleisen wrote:
>
>
> Someone recently mentioned the “7 GUIs” task. I spent a couple of days to
> write up minimal solutions:
>
> https://github.com/mfelleisen/7GUI/blob/master/task-7.rkt
>
> In my spare time, I will develop this repo in more dept
Racket Week is less than a month away! The dorm housing signup for the
workshops is closing soon. You'll have until 06/21 to register for it.
https://school.racket-lang.org/#housing
The details are at the link, but in summary, it's $40/night at the
University of Utah dorms.
Jay
--
Jay McCarthy
Yes, the intermediate output-string does the job. Thanks.
Stupid me, not thinking of that by myself.
Jos
From: Robby Findler
Sent: 13 June 2019 21:32
To: Jos Koot
Cc: Racket Users
Subject: Re: [racket-users] exact rationals in interactions window
Does this help?
(let ([cp (current-print)])
(cu
Thank you very much!
It's hot here...
Am Freitag, 14. Juni 2019 08:58:53 UTC+2 schrieb Tom Gillespie:
>
> https://github.com/Junker/routy found via `racket routy git` seems right?
>
> On Thu, Jun 13, 2019 at 11:56 PM Gregor Kopp > wrote:
>
>> Hi!
>> I found here docs: https://docs.racket-lang.org
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