Thanks for the references. That really useful.
Interestingly according to Matt these ideas were already floating around at his
uni as early as 98?
On 6 February 2019 18:50:21 CET, Matthias Felleisen
wrote:
>
>
>> On Feb 6, 2019, at 12:30 PM, 'Paulo Matos' via Racket Users
>
On 06/02/2019 13:42, Matt Jadud wrote:
> On Tue, Feb 5, 2019 at 8:01 AM 'Paulo Matos' via Racket Users
> mailto:racket-users@googlegroups.com>>
> wrote:
>
>
> Matthew mentions the move to Chez will help maintainability and I am
> sure he's right because he h
>
Happy to get some help on the port. :)
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e so far have been
> modest, I have already factored into my costs the worst-case scenario
> of fully maintaining Chez Scheme as used by Racket. Even if that
> happens, it still looks like a good deal in the long run.
>
Thanks. I guess it all makes sense.
> Matthew
>
> At T
be evaluable by the user. This obviously can't happen if it expands
to private functions.
Is there a specific reason for this or just happened and nobody every cared?
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to print-values. I assume print-values is an `id` in the
grammar, but I cannot find a reference to `print-values` in the docs
either. Is this an omission?
[1]
https://docs.racket-lang.org/reference/syntax-model.html?#(part._fully-expanded)
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/PORTING.md
[2]
https://groups.google.com/forum/#!searchin/chez-scheme/Paulo$20Matos%7Csort:date
[3] https://github.com/cisco/ChezScheme/blob/master/s/cpnanopass.ss
[4] https://twitter.com/lexi_lambda/status/1092539293791330305
[5] https://github.com/cisco/ChezScheme/graphs/contributors
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On 01/02/2019 14:28, Greg Trzeciak wrote:
> Nicely done!
>
> Is my understanding correct and this will also be a newsletter (as in
> subscribe and receive by email)?
>
It's not pretty... yet, but I have added the newsletter subscription option.
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and I can automate that integration as well so that I act as a
hole-filler and editor, even better.
Thanks.
> Sam
>
> On Fri, Feb 1, 2019 at 6:40 AM 'Paulo Matos' via Racket Users
> wrote:
>>
>> A quick preamble: I have been thinking about creating something along
>> t
h following url:
> https://github.com/racket-news/racket-news.github.io-src/issues/new?title=[submission]=foo
>
Great idea. I will try to add something like that. Thanks.
> That would be the simplest solution requiring least effort.
>
>
>
> On Friday, February 1, 2019 at
y like) - this could send an email, create a gist or a github
> issue.
>
That's interesting. Initially I thought people could do that by
submitting a PR or if they don't want to create a PR, they could submit
an issue. Do you think forwarding people to the submit issue form would
put people
esi
* Jay McCarthy
* Matthew Flatt
* Robby Findler
* rxg
* Ryan Culpepper
* Spencer Florence
* Vincent St-Amour
* Winny
Jobs
If you want to advertise any Racket related jobs, please send me an
email or submit a PR.
Disclaimer
This issue is brought to you by Paulo Matos. Any mista
ion. Do others see the same performance degradation in their
> applications?
>
I am about to run some thorough tests and benchmarks on my app. Will
report back on this. Thanks for raising these issues.
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How's this going? Let me know if I can provide any feedback.
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Thanks, I think this is really useful...
I went to look at what gitlab does but unfortunately they don't have
topics... yet!
Paulo Matos
On 16/01/2019 16:45, Stephen De Gabrielle wrote:
> Hi,
>
> https://github.com/topics/racket
>
> I recently noticed the github topic fo
cripts. Is there an easy way to escape
> a string so it's suitable for usage in the shell? Things like
> backwhacking all the quotes and relevant spaces and such.
>
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And here I was hoping for the piece to somehow have a Rackety end...
On 08/01/2019 22:09, Tim Hanson wrote:
> great piece by Michelle Goldberg, imho:
>
> https://www.nytimes.com/2019/01/07/opinion/rashida-tlaib-profanity.html
>
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> the environment is improving, so look for the latest info/news,
> whenever
> you start.)
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t rather awkward #false is shown in green surrounded by
double quotes. Why does this happen? Can I remove them?
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On 07/01/2019 22:38, Andrei Formiga wrote:
> Sorry to slightly hijack the thread here, but what would be a good
> RISC-V dev board to experiment with Racket on it?
I have the HiFive Unleashed which I recommend:
https://www.sifive.com/boards/hifive-unleashed
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ISC-V.
However, it's not a risky bet to support the porting of Racket for
RISC-V because both are really mature projects which are here to stay
and lots can be done on RISC-V since the base ISA's and some extension
specs have been frozen.
Kind regards,
Paulo Matos
> David
>
> Den tor
.
Paulo Matos
[1] https://github.com/LinkiTools/ChezScheme-RISCV/
On 03/01/2019 02:59, Neil Van Dyke wrote:
> (CC-ing Paulo Matos.)
>
> I expect RISC-V to be a top architecture platform for systems
> researchers doing open science, including some language/compilers
> researche
much worse because of the generic
contracts? Also, is there a way to speed up the copying of hash tables?
Paulo Matos
On 06/12/2018 17:08, 'Paulo Matos' via Racket Users wrote:
>
>
> On 06/12/2018 16:39, Vincent St-Amour wrote:
>> On Thu, 06 Dec 2018 07:05:03 -0600,
>> 'Paulo Ma
On 06/12/2018 16:39, Vincent St-Amour wrote:
> On Thu, 06 Dec 2018 07:05:03 -0600,
> 'Paulo Matos' via Racket Users wrote:
>>
>>
>>
>> On 05/12/2018 11:55, Tony Garnock-Jones wrote:
>>> I suspect it will be slow because sets are generics, and generics are
oglegroups.com
> <mailto:racket-users+unsubscr...@googlegroups.com>.
> For more options, visit https://groups.google.com/d/optout.
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do besides replacing place for locus and places for
loci. Let me know if I can help any further.
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On 04/11/2018 22:56, Matt Jadud wrote:
> On Sun, Nov 4, 2018 at 4:30 PM 'Paulo Matos' via Racket Users
> mailto:racket-users@googlegroups.com>>
> wrote:
>
> Curious about what your places are doing.
> How come you started so many places without
Hi,
Curious about what your places are doing.
How come you started so many places without seeing this:
https://groups.google.com/d/msg/racket-users/oE72JfIKDO4/zbFI6knhAQAJ
Could you share what each of the places do?
Paulo Matos
On 04/11/2018 18:18, Matt Jadud wrote:
> Hi all,
>
> I
On 30/10/2018 19:10, Matthew Flatt wrote:
> At Tue, 30 Oct 2018 17:54:46 +0100, "'Paulo Matos' via Racket Users" wrote:
>>
>>
>> On 30/10/2018 16:39, Matthew Flatt wrote:
>>> You need to close the output port after `gunzip-through-ports` finishes.
>
On 30/10/2018 17:07, George Neuner wrote:
>
> On 10/30/2018 11:32 AM, 'Paulo Matos' via Racket Users wrote:
>> I have quite a few large files that I want to gzip to a single file
>> (without an intermediate concatenation) and then later gunzip.
>
> I don't think yo
ion to what Matthew said...
>
> 'Paulo Matos' via Racket Users wrote on 10/30/18 11:32 AM:
>> $ base64 /dev/urandom | head -c 100 > foo3
>
> Even though these are just test files, you might normally want to make
> them by instead `dd if=/dev/urandom` piped to `base64 -`
a (cin)
(gunzip-through-ports cin out)
(close-output-port out))
#:mode 'binary
(call-with-atomic-output-file "foo.txt"
(lambda (op p)
(let loop ([l (read-line in)])
(unless (eof-object? l)
(write l op)
(newline op)
(loop (read-li
`zcat foo.gz | less` you can see the whole
file, so I am suspicious that something might be wrong with
gunzip-through-ports.
Any suggestions to improve this?
Thanks,
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On 05/10/2018 19:23, Matthew Flatt wrote:
>
> We should certainly update the documentation with information about the
> limits of parallelism via places.
>
Added PR:
https://github.com/racket/racket/pull/2304
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localhost. Once I
get to try to implement remote loci I will look into distributed places
and try to improve on that.
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. Next step is to add remote loci at which point I will want to
compare with distributed-places and possibly improve on it.
If anyone has comments, suggestions or complaints on the library please
let me know but keep in mind it's barely a day old.
Paulo Matos
1: https://github.com/LinkiTools/racket
I just confirmed that this is due to memory allocation locking in the
kernel. If your places do no allocation then all is fine.
Paulo Matos
On 08/10/2018 21:39, James Platt wrote:
> I wonder if this has anything to do with mitigation for Spectre, Meltdown or
> the other speculative exe
s also about 10x what it is for
> 2 places, but only gets up to 2 seconds.
> On Fri, Oct 5, 2018 at 10:32 AM Matthew Flatt wrote:
>>
>> At Fri, 5 Oct 2018 15:36:04 +0200, Paulo Matos wrote:
>>> Again, I am really surprised that you mention that places are not
>>>
. No IO (writing to disk) or communication so I would expect
them to really max out all CPUs.
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the racket process status goes from 'R' to 'D' (which
also happens in my case), the CPUs are never really working at 100% with
a lot of the work being done at kernel level.
Has anyone ever noticed this?
On 01/10/2018 11:13, 'Paulo Matos' via Racket Users wrote:
>
> Hi,
>
> I
ng Racket-on-Chez.
>
> So even if you weren’t at RacketCon, there are plans to provide a more
> current update at some point (hopefully soon).
>
+1
Awesome! I assume there'll be RacketCon videos as well?
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Leandro, obrigado por esta excelente contribuição.
Thank you for this excellent contribution. It's really good. I am
reading it a bit at a time and I really enjoy it, not only how you write
it but the subject as well.
Racket needs more of this.
Paulo Matos
On 30/09/2018 18:34, 'Leandro
I attach yet another example where this behaviour is much more
noticiable. This is on a 64 core dedicated machine in amazon aws.
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- screenshots attached.
Are there any suggestions on what the problem might be or how I could
start to understand why the kernel is so active?
Kind regards,
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in Racket boat, I have a feeling the future is
bright. Buckle your seatbelts, the ride is just starting! :)
Paulo Matos
On 27/09/2018 00:53, Matthew Flatt wrote:
> Dear Racketeers,
>
> Racket has just received the
>
>2018 ACM SIGPLAN Software Systems Award
>
&g
On 26/09/2018 19:39, Philip McGrath wrote:
> On Wed, Sep 26, 2018 at 1:36 AM Paulo Matos wrote:
>
> I am keen on hearing about alternatives. The reason to do like this is
> to minimize friction with clients. Clients in the area of development
> tools expect somethin
u run it? On the
example of my original post, I get the demod'ed file, and try to run it
with racket. It doesn't crash but it also prints nothing.
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On 25/09/2018 23:44, Philip McGrath wrote:
> On Tue, Sep 25, 2018 at 3:46 PM 'Paulo Matos' via Racket Users
> mailto:racket-users@googlegroups.com>>
> wrote:
>
> OK, so I understand now that what I want is an unimplemented feature,
> but in most compilers these
it on a very large application. :)
What do you mean 'marked with a warning'?
raco demod --help just says:
-r, --recompile : Recompile final module to re-run optimizations
There's no warning there.
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ing, instantiating, and visiting modules,
> and how that relates to compilation, see this very helpful section in
> The Racket Guide:
>
>http://docs.racket-lang.org/guide/macro-module.html
>
Thank you for the reference.
Paulo Matos
>
>> On Sep 25, 2018, at 07:32, 'Pa
ed-code) would make it to the executable file.
Another thing that might help me understand what's going on, is there a
way to extract the bytecode from the executable and decompile it?
Thanks,
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> of sensors (less than 2,000) in the oil and gas market. Several
> components (maybe one could call them microservices) are written in Racket.
>
> Kind regards,
> Daniel
>
Which company is this, may I ask?
Feel free to join racket-money [1].
[1]: http://www.neilvan
ted? Is there any use case you are
specifically targetting?
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661c12a9752c6a99f952c0e1b267645b33/racket/collects/openssl/libcrypto.rkt#L55
That looks ok to me, so why didn't raco distribute copy the library into
the distribution?
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If I understand correctly you want to create languages in Racket?
In which case you want to read:
https://beautifulracket.com/
Paulo Matos
On 17/09/2018 02:22, Hendrik Boom wrote:
> I'm looking for an introduction to the tools for making Racket into a
> specualized language.
>
>
://list.cs.brown.edu/pipermail/plt-scheme/
But that link is broken. I assume it should point to:
http://lists.racket-lang.org/users/archive/
Was it in June 2002 that it was split into dev and users?
Thanks,
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oice.rkt:7:21: provide: provided identifier is not defined or
required
How can get get-configured-backend-path to exist at both level which
seems to be what define-runtime-module-path-index requires?
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&qu
how can
I get the variable at compile time, and then cache that for use at runtime?
I tried
(define-for-syntax foo (getenv "FOO"))
(define-runtime-path p (build-path foo "name.rkt"))
but this will tell me foo is not available at runtime, so I sort of need
to move the c
.
I super-support an idea of an european gathering of schemers but if it's
at FOSDEM, I will probably stay home and live stream.
Good luck,
Paulo Matos
On 24/08/2018 18:59, amz3 wrote:
> Hello /Racketeers,/
>
> Let's organize a Scheme event at FOSDEM 2019 in Bruxelles.
>
> I s
as much detail as you
would probably like.
>From the docs of hash->list the result type is (listof (cons/c any/c any/c))
This is an association list, so the result is:
(("banana" . (yellow long)) ("apple" . (red round)))
except that racket shows them as lists, and it lo
oo clever by half (maybe).
>
>Robby
>
>On Thu, Aug 16, 2018 at 1:40 PM 'Paulo Matos' via Racket Users <
>racket-users@googlegroups.com> wrote:
>
>>
>>
>> On 16/08/18 19:42, Robby Findler wrote:
>> > Yes, this looks like a bug. I see something went wrong
ivate method, but what I didn't realise is that at the
implementation level, there must be a way to identify a field which is a
lambda and a method because one is part of the object and the other part
of the class.
Thanks!
> Robby
>
> On Thu, Aug 16, 2018 at 12:37 PM 'Paulo Matos' vi
econd, is this a bug? Why does this happen? Shall an issue be opened?
Kind regards,
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ng lines and short names. So I would try to name the
variables appropriatelly. If intermediate variables don't have a
'meaning' such that they can be given proper names, maybe they don't
deserve to be a variable and instead I will compose.
Just my 2 cents.
Paulo Matos
>
> Which could, of cours
code yourself (see https://github.com/rjnw/sham for an
> example).
>
Wow,didn't know about sham. Thanks for the reference.
> Sam
>
> On Sat, Aug 11, 2018 at 4:15 AM, 'Paulo Matos' via Racket Users
> wrote:
>> Hi,
>>
>> In http://felleisen.org/matthias/manifes
ow level C bit manip constructs besides ffi?
Kind regards,
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to thank everyone who is part of the Racket community
and made this possible. Thank you for the amazing Racket ecosystem.
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Peter,
Thank you very much for the reference to the vignette and simple-http
package. simple-http seems to make it quite straightforward, therefore I
will be giving it a go.
Paulo Matos
On 12/04/18 17:28, Peter Schmiedeskamp wrote:
> Darren Newton's simple-http library
> (https://gith
e looked yesterday at Jesse Alama's Server Racket
and he has a chapter on it so I might end up giving Racket a try.
> On Wednesday, April 11, 2018 at 11:36:50 AM UTC-7, Paulo Matos wrote:
>
> Hi,
>
> I am interested in developing a Racket wrapper for hetzner cloud rest
>
I publish it. :)
[1] https://github.com/elsyms/hetznercloud-py/
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On 28/03/18 10:23, 'Paulo Matos' via Racket Users wrote:
> True, I can confirm that. I will open an issue on this.
Done #2019.
https://github.com/racket/racket/issues/2019
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On 27/03/18 17:18, Vincent St-Amour wrote:
> On Tue, 27 Mar 2018 07:55:08 -0500,
> 'Paulo Matos' via Racket Users wrote:
>>
>> I was trying to confirm my suspicion that profile needs to be manually
>> setup in each place for profiling.
>
> Right. Each plac
On 27/03/18 14:55, 'Paulo Matos' via Racket Users wrote:
>
> 1. setup a profile command line argument that's passed to places-profile.rkt
> 2. send a flag indicating if we need profiling in any-double?
> 3. then use profile-thunk on the function if profiling is required,
eads under this custodian."
But what happens if the place itself creates its own custodian to launch
threads?
Kind regards,
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le.com/d/optout
>> <https://groups.google.com/d/optout>.
>>
>>
> --
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>
On 21/03/18 08:46, 'Paulo Matos' via Racket Users wrote:
> Thanks for pointing that out. I hadn't noticed that. It certainly sounds
> like an issue to me.
>
Opened #2001:
https://github.com/racket/racket/issues/2001
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>
> I am a little surprised that the contracted vector can't be converted to
> an immutable-vector like other mutable vectors for use as a place
> message though.
>
Thanks for pointing that out. I hadn't noticed that. It certainly sounds
like an issue to me.
>
> On Tue, Ma
ntract-out documentation.
Regards,
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For more
On 20/03/18 12:50, Philip McGrath wrote:
> The reference section on "Reading Structures" has more relevant details:
> http://docs.racket-lang.org/reference/reader.html#%28part._parse-structure%29
>
> -Philip
>
Thanks for your help on this. I will have a read.
then send
> the serialized representation across the place channel.>
Yes, that seems to be the alternative, thanks.
> -Philip
>
> On Tue, Mar 20, 2018 at 5:39 AM, 'Paulo Matos' via Racket Users
> <racket-users@googlegroups.com <mailto:racket-users@googlegroups.com>>
(...) returned true while the other
returned false. This is surprising because I thought I had read
everything about prefabs and never seen this distinction being discussed.
Any reasons for this to happen?
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's certainly possible that one
might want to have a larger number of places running simultaneously.
At least it seems I can catch the exception and present the error nicely
to the user.
Thanks,
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"
on dynamic-place
instead of place*. But even more surprised that given I only open one
open (the null) port for stdout and stderr I still get the system error.
Is there anything I can do to avoid this? Which files are actually being
created? And 200 is not a very large number...
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t phases of the compiler
but I am unsure of the details. How can one go about solving this?
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reated issue #1989
https://github.com/racket/racket/issues/1989
Thanks,
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ine which I never called. Then the type in the message:
is not very useful either if you do not understand the inner
working of parse-command-line.
The most surprising thing is that errortrace complains about:
/home/pmatos/installs/racket-6.12/collects/racket/cmdline.rkt:199:13:
(define username (comm
at the
end of file, lines longer than 102 chars etc. However, I would like to know if
there's anything already out there before I try to get more complex features
implemented.
Kind regards,
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rrent-logger (create-sublogger lt-logger)])
(thread
(thunk ...)))
create-sublogger increases a counter, which makes it part of a topic and
returns a logger with that topic. I do not know the logger name. Simply
that lt-logger is its parent.
How can I achieve something like this?
--
Pa
tarts off kids in school a bit later than in the UK. Therefore she is
just starting to read/write.
I will nonetheless try to show her the DrRacket REPL and see what she
makes of it following suggestions elsewhere in this thread.
Thanks,
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Paulo Matos
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You received this message bec
ou normally run
> with a faster setting, and temporarily re-run to get a more-helpful
> error message.
>
That's great. Thanks once again.
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Paulo Matos
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-time slower and executable size larger).
However, assembly code generated is the same. It's the use of that
information that's the problem -- mainly under a debugger.
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Paulo Matos
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On 05/03/18 15:28, 'Paulo Matos' via Racket Users wrote:
>
> Is there anything I can try to improve backtrace generation?
>
OK, doing racket -l errortrace -t as suggested in
http://docs.racket-lang.org/errortrace/quick-instructions.html helps.
Does errortrace introduce a performanc
ything I can try to improve backtrace generation?
Kind regards,
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to racke
your answers with a computer, you
have to type (- 16 2), (+ 10 18), etc. But is it useful or a waste of
mine and her time and there's a better way to begin?
Kind regards,
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Paulo Matos
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On 23/02/18 15:13, 'Paulo Matos' via Racket Users wrote:
> That's true, thanks for pointing it out. I only just noticed you could
> generate test-suites and test-cases at runtime with make-testcase and
> make-testsuite. Therefore I will actually be doing this without a macro.
> H
"Examples" section, I found I could
> handle many of the cases I wanted to without needing to dive into the
> more intimidating parts of the documentation for quite a while.
>
Thanks, I shall take a look.
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efore I will actually be doing this without a macro.
However, it's always very useful to attempt this macro katas. :)
Thanks,
> -Philip
>
> On Fri, Feb 23, 2018 at 7:11 AM, 'Paulo Matos' via Racket Users
> <racket-users@googlegroups.com <mailto:racket-users@googlegroups.com>
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