Here is a clearer photo. In the original (and working) graphical editor you can
select the entities to highlight them in red. The entities are weirdly cut off.
The top left arc is cut off in the middle! Have since commented out (define
draw-line ..), but the problem still persists.
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You rece
Could you point to the complete code base? Thanks -- Matthias
On Mar 26, 2015, at 9:38 AM, chia kang ren wrote:
> Here is a clearer photo. In the original (and working) graphical editor you
> can select the entities to highlight them in red. The entities are weirdly
> cut off. The top left
Thanks a lot George, for this insightful reply.
Your idea about FFI explaining 95% of the overhead looks good... but i wonder:
in this case, shouldn't we also see a high cost in bind-prepared-statement
alone?
(sorry for my sketchy english)
Thanks again,
Renaud
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I'd like to typeset some Javascript code in a way similar to what pict/code
allows, but the naive approach of (code someFunc(someArg, someOtherArg))
doesn't quite work because of the reader adding whitespace in various places.
pict/code seems to be purely oriented towards working with racket cod
At Wed, 25 Mar 2015 17:08:56 -0700 (PDT), Steve Olsen wrote:
> I was wondering if anybody could show me an example of a very simple
> snip% that maybe drew a circle and had some sort of click interaction
> that I could work off of.
I'll add the enclosed example to the documentation.
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I use the `java-lexer` package to typeset JavaScript code:
https://github.com/stamourv/java-lexer
To turn those into picts, you can use `codeblock->pict` from
`unstable/gui/scribble`.
Vincent
At Thu, 26 Mar 2015 09:45:50 -0700 (PDT),
Jack Firth wrote:
>
> I'd like to typeset some Javascri
Fantastic, thank you. Sidenote - I had to (require java-lexer) instead of
(require java/code) like the readme says.
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You're all forgiven since, 1/ there's nothing to forgive, and 2/ you're of
great help with such precise and thorough answers.
I still don't know how to speed up my code, but i've learnt a lot.
Big thanks to you George, again.
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How did you time the queries?
/Jens Axel
2015-03-25 15:03 GMT+01:00 Renaud :
> Hi,
>
> I'm new to Racket, and i would like to know why sqlite queries are so slow in
> my test program.
>
> This program imports some data from a text file into a simple sqlite DB. It
> takes 35s with the INSERT qu
Le jeudi 26 mars 2015 19:21:11 UTC+1, Jens Axel Søgaard a écrit :
> How did you time the queries?
>
> /Jens Axel
>
>
> 2015-03-25 15:03 GMT+01:00 Renaud :
> > Hi,
> >
> > I'm new to Racket, and i would like to know why sqlite queries are so slow
> > in my test program.
> >
> > This program impo
Did you subtract the startup cost of Racket to get the time of the queries?
/Jens Axel
2015-03-26 19:29 GMT+01:00 Renaud :
> Le jeudi 26 mars 2015 19:21:11 UTC+1, Jens Axel Søgaard a écrit :
>> How did you time the queries?
>>
>> /Jens Axel
>>
>>
>> 2015-03-25 15:03 GMT+01:00 Renaud :
>> > Hi,
>
Le jeudi 26 mars 2015 19:37:19 UTC+1, Jens Axel Søgaard a écrit :
> Did you subtract the startup cost of Racket to get the time of the queries?
>
> /Jens Axel
I subtracted the two timings, which should get rid of everything but the query
time, and gives about 30s for raket vs. about 5s for perl
Good catch! I just pushed a fix.
Thanks!
Vincent
At Thu, 26 Mar 2015 10:38:53 -0700 (PDT),
Jack Firth wrote:
>
> Fantastic, thank you. Sidenote - I had to (require java-lexer) instead of
> (require java/code) like the readme says.
>
> --
> You received this message because you are subscrib
This is so awesome.
Jay
On Wed, Mar 25, 2015 at 9:55 PM, Jon Zeppieri wrote:
> I recently uploaded Gregor, a date and time library, to the package server.
>
> Features:
>
> - representations for and generic operations on:
> - dates
> - times (as in, time-of-day)
> - datetimes (combined dat
That's also what I understand, and I find this philosophy pretty appealing
too, for what it's worth.
However it still worries me as this sounds a like "I'm not wearing shoes
because the problem is not your feet but the pavement; What we need is a
pavement that makes it possible to walk without sho
Laurent writes:
> Furthermore, files and github are not chosen by Racket, so I don't
> personally mind that much using a few external tools if Racket
> can't do it itself (I'd still rather have Racket do it itself of
> course; I want a Racket machine). What's more, whether `raco` is
I'd go on
Matthias Felleisen writes:
> Neil, I wrote this paper _because_ academia perceives Racket as a cult.
Wow. I must be missing something interesting. Is there some tutorial
on the Rites of Racket? ;-)
I am in academia, but quite remote from the Racket hotspots both
thematically and geographicall
On Mar 26, 2015, at 7:42 AM, Konrad Hinsen wrote:
> In my opinion, it would be interesting to develop a pedagogical
> approach to the language development theme in the form of tutorials,
> books, or presentations. Maybe even a "teaching language" with a
> simplified version of syntax/parse. The g
On Mar 26, 2015, at 7:42 AM, Konrad Hinsen wrote:
> I must be missing something interesting. Is there some tutorial on the Rites
> of Racket? ;-)
I meant to address this one but a separate message is better anyway.
Here we go:
0. open drracket
1. type "("
2. hit
3. stare at the two space
I didn't understand the manifesto as saying Racket should try to be a
lisp machine or OS (we already have Emacs for that :)) or that all
external tools are bad (despite what I wrote quickly; sorry). Instead
I understood it to mean, let's minimize gratuitous tools that do stuff
that would be more na
On 3/25/2015 10:03 AM, Renaud wrote:
I'm new to Racket, and i would like to know why sqlite queries are so slow in
my test program.
This program imports some data from a text file into a simple sqlite DB. It
takes 35s with the INSERT queries and 5-6s without them.
I've done the same thing wit
Thanks for sending this, again. I was writing a response very
much along these lines when your post came in.
1. No, we cannot and will not replace all tools. Quite the opposite,
I foresee a future in which we will produce many more tools. [Your
effort will make me think twice before I write a
This is really cool!
Do you have plans for operations on durations?
Vincent
At Wed, 25 Mar 2015 21:55:31 -0400,
Jon Zeppieri wrote:
>
> I recently uploaded Gregor, a date and time library, to the package server.
>
> Features:
>
> - representations for and generic operations on:
> - dates
Matthias Felleisen writes:
> Here we go:
>
> 0. open drracket
> 1. type "("
> 2. hit
> 3. stare at the two spaces of indentation in sheer amazement
> 4. relax, type ")"
>
> Smile. Now you're a Racketeer.
Thanks - now I feel enlightened!
> A web site is an ad.
As is a research pa
Thanks, that clarifies the point. The manifesto maybe puts it too strictly
indeed.
On Thu, Mar 26, 2015 at 1:58 PM, Matthias Felleisen
wrote:
>
> Thanks for sending this, again. I was writing a response very
> much along these lines when your post came in.
>
> 1. No, we cannot and will not repla
[I am sorry for replying again on this sub-thread,
but your first statement makes me very sad and the
second one points out a serious flaw in our web prose.]
On Mar 26, 2015, at 11:02 AM, Konrad Hinsen wrote:
>> A web site is an ad.
>
> As is a research paper. It's the audience that differs
On 3/26/2015 10:16 AM, Renaud wrote:
Thanks a lot George, for this insightful reply.
Your idea about FFI explaining 95% of the overhead looks good... but i wonder:
in this case, shouldn't we also see a high cost in bind-prepared-statement
alone?
Hi Renaud,
I'm not sure exactly what you are
On Mar 25, 2015, at 6:55 PM, Jon Zeppieri wrote:
> I recently uploaded Gregor, a date and time library, to the package server.
Can I use this instead of SRFI 19? That would be wonderful.
John Clements
>
> Features:
>
> - representations for and generic operations on:
> - dates
> - times
On Thu, Mar 26, 2015 at 3:56 PM, John Clements
wrote:
>
> On Mar 25, 2015, at 6:55 PM, Jon Zeppieri wrote:
>
>> I recently uploaded Gregor, a date and time library, to the package server.
>
> Can I use this instead of SRFI 19? That would be wonderful.
>
> John Clements
Please do, and let me know
At Thu, 26 Mar 2015 14:30:28 -0400,
Jon Zeppieri wrote:
>
> On Thu, Mar 26, 2015 at 10:51 AM, Vincent St-Amour
> wrote:
> > This is really cool!
> >
> > Do you have plans for operations on durations?
> >
> > Vincent
>
> More vague thoughts than plans.
>
> So-- there's a useful distinction (tha
On Thu, Mar 26, 2015 at 4:57 PM, Vincent St-Amour wrote:
> At Thu, 26 Mar 2015 14:30:28 -0400,
> Jon Zeppieri wrote:
>>
[ snip]
> Since, IIUC, periods need to be "anchored" to a specific point in time,
> that would make them a bit more heavyweight to create. I could see
> durations being nice fo
On Thu, Mar 26, 2015 at 4:13 PM, Jon Zeppieri wrote:
> You
> can carry around a bucket that says "5 years, 3 weeks, and 40 hours,"
> but the precise number of seconds inside the bucket is indeterminate
> until you pour it over a date-provider. (No, not a great metaphor.)
I have a feeling I'm goin
On Thu, Mar 26, 2015 at 5:27 PM, Robby Findler
wrote:
> On Thu, Mar 26, 2015 at 4:13 PM, Jon Zeppieri wrote:
>> You
>> can carry around a bucket that says "5 years, 3 weeks, and 40 hours,"
>> but the precise number of seconds inside the bucket is indeterminate
>> until you pour it over a date-pro
On Thu, Mar 26, 2015 at 5:30 PM, Jon Zeppieri wrote:
>
> 3 weeks and 40 hours will always have a fixed number of seconds...
And this is because Gregor isn't faithful to UTC, of course.
Otherwise, this wouldn't be true.
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On Thu, Mar 26, 2015 at 4:31 PM, Jon Zeppieri wrote:
> On Thu, Mar 26, 2015 at 5:30 PM, Jon Zeppieri wrote:
>>
>> 3 weeks and 40 hours will always have a fixed number of seconds...
>
> And this is because Gregor isn't faithful to UTC, of course.
> Otherwise, this wouldn't be true.
Right; I notic
2015-03-26 22:30 GMT+01:00 Jon Zeppieri :
> On Thu, Mar 26, 2015 at 5:27 PM, Robby Findler
>> Would 3 weeks and 40 hours always be a precise number of
>> seconds?
>>
>> Robby
What about leap seconds?
/Jens Axel
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"Rac
>> - Assuming that "periods" are useful, what operations on them do we
>> want? Arithmetic, probably; maybe the `period->nanoseconds` function I
>> just mentioned; maybe convenience functions based on the current time
>> (e.g., `ago`, `from-now`). Anything else?
1. For scheduling apps people often
Yeah, these are really good ideas.
Thanks!
- Jon
On Mar 26, 2015, at 5:55 PM, Greg Hendershott wrote:
>>> - Assuming that "periods" are useful, what operations on them do we
>>> want? Arithmetic, probably; maybe the `period->nanoseconds` function I
>>> just mentioned; maybe convenience function
On Thu, Mar 26, 2015 at 2:57 PM, Vincent St-Amour wrote:
> At Thu, 26 Mar 2015 14:30:28 -0400, Jon Zeppieri wrote:
>>
>> On Thu, Mar 26, 2015 at 10:51 AM, Vincent St-Amour
>> wrote:
>> - Is a "duration" data structure, distinct from some number of
>> nanoseconds, useful? In Joda it seems largely
Gregor shares the near-universal disdain for UTC exhibited by operating systems
and date/time libraries alike.
Seriously, though: Gregor doesn't keep UTC time, so there are no leap seconds.
I mentioned in the docs that if there's a real demand for UTC, I'll implement
it.
- Jon
> On Mar 26,
On Thu, Mar 26, 2015 at 10:51 AM, Vincent St-Amour wrote:
> This is really cool!
>
> Do you have plans for operations on durations?
>
> Vincent
More vague thoughts than plans.
So-- there's a useful distinction (that comes out of Joda-Time)
between a duration, which is directly convertible to som
One area where a notion of Project comes in handy is with cross-file
refactoring.
E.g. Right now I am in the midst of renaming a #:keyword and resorting to
grep to find dependencies in other files. Is there a smarter existing way
of doing this kind of thing in DrRacket? Or is this a use-case for f
BTW, the ISO 8601 standard (I don't mean the trivial "ISO 8601 date/time
format" everybody knows) has done a lot on concepts you might want to
look at. Beware that ISO 8601 is big, and there is some baffling stuff
included, but you can't always tell what is important.
One thing I can tell you
I've used a library like this before
[https://github.com/jeremyw/stamp], and realized that there were two
things I didn't like about it: (1) potential ambiguity in the
(user-)chosen exemplar date/time and (2) my tendency to mistake the
exemplar date for an actual piece of data in the program. Go's
I'm confused about how local package development is supposed to work with `raco
pkg install --clone`. This is turning into a deterrent to diagnosing & fixing
bugs, and an encouragement to post issues so others can fix them.
In the dark ages, one would a) fork the main Racket repo on GitHub, b) w
On Thu, Mar 26, 2015 at 9:52 PM, Matthew Butterick wrote:
> I'm confused about how local package development is supposed to work with
> `raco pkg install --clone`. This is turning into a deterrent to diagnosing &
> fixing bugs, and an encouragement to post issues so others can fix them.
>
> In t
Unless it was just a typo in your e-mail message, you wanted
"path=typed-racket" instead of "path-typed-racket" (i.e., an "="
instead of "-").
Instead, though, I recommend that you start with "typed-racket"
installed the usual way, and then use
raco pkg update --clone typed-racket
Afterward, c
Yeah... I've debated several times whether to shell out the 138 Swiss
francs for a copy.
There is a bit of support for the week-based calendar in Gregor
(->iso-week, ->iso-wyear, and ->iso-wday are defined on
date-provider), but the I've never actually used the week-based
calendar, which makes it
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