I realize this is a very old thread, but the behavior of Racket has not
changed since.
On 03-05-14 23:29, Marijn Schouten (hkBst) wrote:
> On 07/10/2012 05:03 PM, Matthew Flatt wrote:
>> At Tue, 10 Jul 2012 10:51:57 -0400, Eli Barzilay wrote:
>>> 20 minutes ago, Marijn wrote:
On 07/10/2012 05:03 PM, Matthew Flatt wrote:
> At Tue, 10 Jul 2012 10:51:57 -0400, Eli Barzilay wrote:
>> 20 minutes ago, Marijn wrote:
>>>
>>> It seems to me that both these results cannot be correct
>>> simultaneously, but I'll await the experts
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On 14-06-13 11:39, Marijn wrote:
> Hi list,
>
> racket-5.3.3 and 5.3.4 are today both failing to compile for me
> with:
>
> raco setup: in r5rs/private raco setup: in
> typed-racket/optimizer SIGSEGV MAPERR si_code 1 fault o
EGV MAPERR error and got some other mentions
of the problem dating back a long time, but no-one seemed to have any
clue what was going on.
Marijn
[1]:https://bugs.gentoo.org/show_bug.cgi?id=471978
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tage is there to using images over source code for
saving, loading and exchange? Or is what you're describing also
possible using source code instead of images and then looks something
like the ideas of Bret Victor (http://worrydream.com)?
Marijn
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t; complaints, `matrix-norm' would have contained a time bomb.)
Should -0.0 really be a Nonnegative-Real?
Marijn
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On 01-12-12 18:45, Neil Toronto wrote:
Rather than a guarantee (or a probabilistic estimate) of actual
collection, could the garbage collector's opinion of what is or isn't
garbage be exposed somehow?
Marijn
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On 11-11-12 18:06, Eli Barzilay wrote:
> Yesterday, Neil Toronto wrote:
>> On 11/09/2012 08:33 AM, Eli Barzilay wrote:
>>>
>>> Marijn: if this is a problem, you might get around it by
>>> avoiding the documenta
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On 09-11-12 16:33, Eli Barzilay wrote:
> Four hours ago, Sam Tobin-Hochstadt wrote:
>> On Fri, Nov 9, 2012 at 4:57 AM, Marijn wrote:
>>> I've had a report that building racket without X doesn't work
>>> if cairo
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Hi,
I've had a report that building racket without X doesn't work if cairo
is not installed. Presumably in this mode it should not need cairo, right?
Marijn
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On 19-07-12 16:59, Marijn wrote:
> Hi,
>
> I've been having some performance problems when using lots of items
> in table-panels[1]. Switching tabs when running the following
> example exhibits the problem. Can anything be done ab
cket/collects/mred/private/wx/common/queue.rkt:633:3
Marijn
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iXUAni72AhlCzSkjEZp2uE29Nus3FaEb
=Nt5Z
the first
tab is not blank but lets you specify the number of rows and columns
of the table of buttons on tab 2.
Marijn
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Hi,
I've been having some performance problems when using lots of items in
table-panels[1]. Switching tabs when running the following example
exhibits the problem. Can anything be done about it?
Marijn
#lang racket/gui
;(require (planet wil
`(let ((x 1)) #,stx))
(define-syntax (m stx)
(syntax-case stx ()
((_) #`(let ((x 2)) #,(f #'x))) ))
(m)
it now produces 1 instead of the expected 2.
It seems to me that both these results cannot be correct
simultaneously, but I'll await the experts' opinion on that.
as well. In conclusion,
some options are:
~error-port
@error-port
~error-port~
@error-port@
Just some random thoughts,
Marijn
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On 04-05-12 21:54, Vincent St-Amour wrote:
> I don't think that's what Marijn was suggesting.
>
> I understood it as:
>
> (define-syntax-rule (define-complex real-name imag-name rhs)
> (define real-name (real-part rhs))
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Hi,
would it make sense for define-syntax-rule to have an implicit begin
such that it could accept multiple forms for the template?
Marijn
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It's possible that you were hoping to have the callback invoked
> more often on Windows, instead of less often on Gtk, but
> `racket/gui' is meant to invoke callbacks only in response to user
> actions.
Not really; all I was looking for was the consistency that you've n
er ways to
tickle this difference that don't rely on that: any effectful callback
would exhibit the difference. Is it possible to remove this
platform-dependent difference?
Marijn
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he function name.
How about changing the message such that it complains about a shortage
of parentheses without stating that there are none?
- - expected a function call, but there is an open parenthesis missing
before this function name
Or maybe formulate it in a positive way to encourage the user
t
a keyword is a value which evaluates to itself, like a constant,
whereas symbols are produced by quoting identifiers. The difference
manifesting when multiple-evaluation comes into play: what is the
value of the value of ...
Marijn
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On 18-01-12 17:47, Matthew Flatt wrote:
> At Wed, 18 Jan 2012 12:02:10 +0100, Marijn wrote:
>> I would expect both forms to work. This is a reduction of a different
>> problem possibly caused by these issues here.
So I tried to cut down my program to a reasonably sized test-case wh
srfi/1)
leads to ```module: identifier already imported from: frtime at: third
in: srfi/1''' error.
I would expect both forms to work. This is a reduction of a different
problem possibly caused by these issues here.
Marijn
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On 12-01-12 18:27, Gregory Cooper wrote:
> Hi Marijn,
>
> The value-now/sync procedure waits for propagation to complete
> before reading a signal's value. Would something like the
> following suit your purposes?
>
>
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On 10-01-12 15:25, Matthew Flatt wrote:
> At Tue, 10 Jan 2012 11:31:19 +0100, Marijn wrote:
>> Racket calls `ldconfig -n /usr/lib' in the course of doing `make
>> install' and this causes one of bigloo's shared object
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On 11-01-12 21:26, Gregory Cooper wrote:
> Hi Marijn,
>
> FrTime propagates changes asynchronously. When send-event returns,
> there's no guarantee that the event has finished propagating
> through the system. And in general,
t. `b' is the
behavior produced by holding the last value seen on `a'. After the
value 3 arrives on `a', `b' should hold to 3. But it doesn't unless
you ``help'' frtime a bit...
Marijn
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On 27-12-11 11:04, Marijn wrote:
> Hi,
>
> the docs for application:current-app-name say that it is used in
> the Help menu, but that doesn't seem to work for the following
> program:
>
>
> #lang racke
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On 22-12-11 10:02, Marijn wrote:
> On 21-12-11 18:57, Eli Barzilay wrote:
>>> Since I'm talking, I might as well mention my personal opinion
>>> on the strong points of racket (besides the (non-)obvious ones
>>&g
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On 19-12-11 16:50, Marijn wrote:
> Hi,
>
> XREPL is said to be able to edit your .racketrc in the docs, but
> apparently doesn't cope well with that file not existing yet:
>
> $ racket Welcome to Racket v5.2.0.7.
>> (r
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On 19-12-11 16:45, Marijn wrote:
> Hi,
>
> just tried out XREPL and it turns out it complains about not
> finding libreadline.so.5:
>
> $ racket Welcome to Racket v5.2.0.7.
>> (require xrepl)
> ; Warning: no readline supp
bug seems to have been caused by the recently
fixed locale bug (that caused .1 to be read as .0) and works fine now.
At least it doesn't hang drracket any more. Without screenshots it is
hard to say whether it does what is expected.
Anyway, I'm just glad it is working now,
Marijn
inked.
I don't think racket should be calling ldconfig.
On the other hand, I am not sure that I know of any good reason why
calling ldconfig should cause that unlink to happen (which isn't
saying very much). Could it be that bigloo also does something funny here?
Marijn
[1]:https://b
ing by supporting this though, since you can
always use a non-capturing group, but I do agree that it can be
considered an inappropriate extension of the meaning of regexp-split.
I'll be sure to raise these issues on the guile list.
> We've talked semi-recently abou
d module-path string at: "file-with-lo>ng-name" in:
(require "file-with-lo>ng-name")
=== context ===
/usr/lib64/racket/collects/racket/private/reqprov.rkt:243:14:
transform-simple
/usr/lib64/racket/collects/racket/private/reqprov.rkt:222:2
Marijn
-
p-split "([^0-9])" "123+456*/")
'("123" "456" "" "")
should it be considered a bug in racket that it doesn't support
capturing groups in regexp-split? Without the capturing group the
results are identical:
>
cale
stack to become ``seeded'' (due to postulated unmatched push/pop).
BTW Perhaps coccinelle (http://coccinelle.lip6.fr/) can help identify
(and automatically fix) the unmatched uses of the locale stack.
Marijn
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t crazy for thinking the bug might
> discriminate against people whose first language isn't English?
> Laurent speaks French and I think Marijn speaks Dutch.
Locales are a beautiful thing, but they also cause many many weird
issues... but it is ever so annoying to see a numeric date and
p_c_numeric_locale(loc); }
Hi Matthew,
you're certainly on the right track. I tried starting drracket in this
way:
LC_ALL="en_US.UTF-8" drracket &
and almost all symptoms were gone.
Marijn
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On 24-12-11 16:23, Matthew Flatt wrote:
> At Wed, 14 Dec 2011 16:49:23 +0100, Marijn wrote:
>> #lang racket (* .1 pi)
>>
>> produces 0.0 reliably in a freshly started drracket even when
>> rerunning it, but:
&
e get-area-container))
(send root-frame show #t)
Marijn
[1]:http://docs.racket-lang.org/framework/Frame.html?q=default%20key%20bindings&q=menu-bar#%28def._%28%28lib._framework/main..rkt%29._frame~3aeditor-mixin%29%29
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(define root-frame (new (frame:standard-menus-mixin frame:basic%)
(label (application:current-app-name))
(width 200)
(height 200) ))
(send root-frame show #t)
Marijn
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ons without inverting control flow
Racket:
Racket is a unique general-purpose programming language with strong
support for domain-specific languages, that enables you to do unified
native GUI programming for Windows, OS X and Linux, and let's you
write web applications without inverting control
out yet, if the times comes I would
definitely try racket for this first.
Marijn
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n't open
"libreadline.so.5" (libreadline.so.5: cannot open shared object file:
No such file or directory))
- -> ,install!
file-size: file not found: "/home/marijn/.racketrc"
- ->
and indeed it doesn't get created:
$ cat ~/.racketrc
cat: /home/marijn/.racketrc: No s
dline.so.5: cannot open shared object file:
No such file or directory))
- ->
that makes sense as my installed and the current upstream readline
version is 6.2. Any chance that could be fixed?
Marijn
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g-term solution, but I'm curious to
> see if it improves things for you at least.
Hi Robby, I'm sorry to disappoint again, but there was no change to
the observed behavior.
Marijn
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-rational 2/3 2/3)
2/3
but what about:
> (gcd-rational 2/3 2/3 2/3)
2/3
> (lcm-rational 2/3 2/3 2/3)
4/9
is that 4/9 the intended result?
Marijn
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iEYEARE
Not that I have noticed. Also the numeric tests seem to complete
without any errors.
Marijn
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On 06-12-11 23:14, Robby Findler wrote:
> I've pushed a change that I think (hope) fixes this.
>
> Robby
Hi Robby, I'm sorry to disappoint, but the issue is still there with
this morning's master.
Marijn
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trying to determine the cause via private email.
Matthew, has any of the data I provided so far pointed you anywhere?
Otherwise is there something else I can do to help debug?
Marijn
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On 24-11-11 09:51, Marijn wrote:
> Hi Robby,
>
> On 23-11-11 13:10, Robby Findler wrote:
>> I'm not seeing that under ubuntu 10.04 using the version of
>> Racket from this morning. Is there possibly something else that
>&
gt; port, rather than reading a line and then doing a "regexp-split" on
> the line. The latter way is a Perl idiomatic way of parsing a
> language like this, and that way will also work in Racket, but
> there are arguably better ways.
Thanks, I had no idea.
; given '("m")
but
$ echo "m" | racket -e '(require rnrs/base-6) (car (list (read-line
(current-input-port))))'
"m"
so apparently regexp-split is the culprit,
Marijn
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e/wx/common/freeze.rkt:9:0
internal-error
/usr/lib64/racket/collects/mred/private/wx/common/freeze.rkt:36:0 core6
this internal error is repeated some dozen more times.
Marijn
> On Wed, Nov 23, 2011 at 1:53 AM, Marijn wrote:
> In the latest git master, check-syntax button is freezing d
console.
Marijn
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=eqRj
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On 10/20/11 20:30, Robby Findler wrote:
> On Thu, Oct 20, 2011 at 11:34 AM, Marijn wrote:
>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA1
>>
>> Hi Robby,
>>
>> On 10/20/11 18:15, Robby Findler wrote:
>>&g
doesn't have a menu, when used in a
complete application there probably will be menus, and I'm planning to
check out what the framework provides.
However, I don't understand the logic of menus that bring about key
bindings for editors.
Marijn
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On 10/20/11 18:12, Matthew Flatt wrote:
> At Thu, 20 Oct 2011 17:58:08 +0200, Marijn wrote:
>>>> Another thing. How do you enable simple
>>>> select/copy/cut/paste behavior with standard key-bindings in
>>>> a
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On 10/20/11 14:53, Matthew Flatt wrote:
> At Thu, 20 Oct 2011 11:16:59 +0200, Marijn wrote:
>> Could you perhaps comment on the slowness of the cursor appearing
>> in a clicked cell? It seems to have something to do with the
>
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Hi Matthew,
On 10/18/11 17:10, Matthew Flatt wrote:
> At Tue, 18 Oct 2011 16:32:54 +0200, Marijn wrote:
>> the attached program draws a grid in a canvas and paints a few of
>> the cells so created. When resizing the window, t
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Hi Robby,
On 10/18/11 17:58, Robby Findler wrote:
> On Tue, Oct 18, 2011 at 8:39 AM, Marijn wrote:
>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA1
>>
>> On 10/18/11 14:09, Robby Findler wrote:
>>> Oh, and one more com
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On 10/18/11 17:10, Matthew Flatt wrote:
> At Tue, 18 Oct 2011 16:32:54 +0200, Marijn wrote:
>> the attached program draws a grid in a canvas and paints a few of
>> the cells so created. When resizing the window, the grid is also
>>
the drawing is off and the colored cells do not properly correspond
to the drawn grid. You can see this especially well if you hold down the
mouse button after resizing. When releasing it the grid lines will
change position to match up once more with the colorings.
Marijn
#lang racket/gui
it didn't show anything outside my one file.
> On Tue, Oct 18, 2011 at 6:36 AM, Marijn wrote:
>> Hi list,
>>
>> while running some code I'm working on, I noticed that the error
>> message reported and the expression highlighted as the source of
>>
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On 10/04/11 20:59, Matthew Flatt wrote:
> I think I found the problem. Can you try the latest version?
Thanks Matthew, everything seems to work now.
> At Tue, 04 Oct 2011 09:42:53 +0200, Marijn wrote: On 10/03/11
> 17:07, Matthew Fl
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On 10/03/11 17:07, Matthew Flatt wrote:
> At Mon, 03 Oct 2011 16:10:15 +0200, Marijn wrote:
>> creating executables is still broken and seems now to cause lots
>> of memory allocation causing my system to start thrashing...
>
> I
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Hi list,
creating executables is still broken and seems now to cause lots of
memory allocation causing my system to start thrashing...
$ cat hello.rkt
#lang racket
(print "hello")
$ raco exe -o hello hello.rkt
[.starts thrashing.]
Mari
;m confused now. That bug talks about a bundled zlib, while Eli says
this is about:
``keeping the C code that was ripped out of gnuplot.''
which would IIUC be a violation of gnuplot's license.
Marijn
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On 09/08/11 11:16, Marijn wrote:
> Hi Matthew,
>
> On 09/01/11 10:31, Marijn wrote:
>> Hi list,
>>
>> list-box%es are not properly sized; the following code:
>
> I think you pushed a patch to change this. Currently
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On 09/05/11 10:03, Marijn wrote:
> Hi Vincent,
>
> On 09/02/11 19:33, Vincent St-Amour wrote:
>> At Fri, 02 Sep 2011 09:15:20 +0200, Marijn wrote:
>>> I just tried with latest git and nothing has changed for me.
>>&g
think).
This is with a git racket of 12 Sept on amd64 Linux.
Marijn
standard-module-name-resolver: expected argument of type ; given
#"/usr/lib64/racket/collects/drracket/private/syncheck/online-comp.rkt"
=== context ===
standard-module-name-resolver
/usr/lib64/racket/collects/d
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Hi Matthew,
On 09/10/11 22:49, Matthew Flatt wrote:
> At Fri, 09 Sep 2011 12:29:13 +0200, Marijn wrote:
>> this racket bug was discovered when I was trying out geiser
>> which starts programs in a way that exposes this bug. The pr
Now
> I'm really curious as to what's going on here!
With last week's code I get:
eq? 0.0 #f
eqv? 0.0 #t
Float? #t
Float-Or-Integer? #f
but with this morning's git version:
eq? 0.0 #f
eqv? 0.0 #t
Float? #t
Float-Or-Integer? #t
on amd64 Gentoo GNU/Linux,
HTH,
Marijn
-
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On 09/09/11 09:33, John Clements wrote:
> [*] See earlier thread where the general consensus was that it was
> not possible to make a Racket version of this run less than (IIRC)
> 5x slower than C.
What is the subject of that thread
del (new button% (parent h) (label "del")
(callback (λ (b e) (send parent delete-child v))) ))
v)
(for-each (λ (v) (create-item v items)) '("1" "2" "3"))
(new button% (parent f) (label "append") (callback (λ (b e)
(cre
Hi Matthew,
On 09/01/11 10:31, Marijn wrote:
> Hi list,
>
> list-box%es are not properly sized; the following code:
I think you pushed a patch to change this. Currently the list-box as
coded below has a minimum size of three items. Unfortunately the scroll
bar seems to have a minimum s
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Hi Vincent,
On 09/02/11 19:33, Vincent St-Amour wrote:
> At Fri, 02 Sep 2011 09:15:20 +0200, Marijn wrote:
>> I just tried with latest git and nothing has changed for me.
>> Neither the wrong message, nor the failing executable.
>
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Hi Robby,
On 09/02/11 14:33, Robby Findler wrote:
> On Fri, Sep 2, 2011 at 2:50 AM, Marijn wrote:
>> But anyway, the test for whether the platform is Gtk seems to be
>> faulty, because now I'm seeing the ``Windows/OS X''
ts restriction on partial matches, by using wildcards to
extend to full match). I'm sure other people have more/better ideas.
> Please let me know if you spot any problems.
No problems, just work in progress (as is all software) ;P
Thanks for working on this!
Marijn
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Hi Matthew,
On 09/01/11 16:41, Marijn wrote:
> On 09/01/11 16:29, Matthew Flatt wrote:
>> At Thu, 1 Sep 2011 09:14:47 -0500, Robby Findler wrote:
>>> On Wed, Aug 31, 2011 at 3:30 AM, Marijn
>>> wrote:
>>>>>
t and nothing has changed for me. Neither
the wrong message, nor the failing executable.
Marijn
> At Thu, 01 Sep 2011 16:24:02 +0200, Marijn wrote:
>>
> Hi list,
>
> when creating executables from racket, when I choose (the
> defaults) standalone based on racket, it will say &
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On 09/01/11 16:29, Matthew Flatt wrote:
> At Thu, 1 Sep 2011 09:14:47 -0500, Robby Findler wrote:
>> On Wed, Aug 31, 2011 at 3:30 AM, Marijn
>> wrote:
>>>> I like the idea of adding shift, but I've changed thin
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On 09/01/11 16:14, Robby Findler wrote:
> On Wed, Aug 31, 2011 at 3:30 AM, Marijn wrote:
>>> I like the idea of adding shift, but I've changed things so
>>> that instead of the w shortcut going away, the close menu item
&g
o run like this:
$ ./hello
read failed to read all 885878182 bytes from file
/home/marijn/racketzooi/./hello
Aborted
My test program:
#lang racket
(print "hello")
This is on amd64 Linux with a racket from a day old.
Marijn
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efine text (new text%))
(new editor-canvas% (parent root) (editor text) (min-width 40)
(min-height 50))
(send root show #t)
produces the attached screenshot on my system,
Marijn
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For l
"C3" "44" "five" "6" "seven" "OO"
(send root show #t)
results in the attached screenshot.
Marijn
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For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/dev
ng C-t for backward compatibility.
I concur with Eli completely. Given that Ctrl+R is currently bound to
``Replace'' which is disabled by default (!) it seems silly not to
bind it to Run (which apparently is important enough to have its own
button).
Marijn
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On 08/25/11 19:30, Robby Findler wrote:
> On Thu, Aug 25, 2011 at 9:12 AM, Marijn wrote:
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>>
>> Hi Robby,
>>
>> On 08/25/11 14:13, Robby Findler wrote:
>>>
en confused by this if the visual
cue in the menus had actually moved as intended.
Marijn
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in many terminal emulators (like
LXTerminal, Konsole, Gnome Terminal) Ctrl+Shift+w means close tab. Close
Program (usually called Quit) is bound to Ctrl+Q (Firefox) or
Ctrl+Shift+Q (terminal emulators). Could drRacket follow these keybindings?
Marijn
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for me in most cases I'd prefer for the
file to disappear from the list. Alternatively the list could be checked
for no-longer-existing files on startup or when opening it from the menu.
What do you think?
Marijn
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braces and it will absorb (and need) a semicolon, so that it
won't break your if-statements. You can read more about it here:
https://www.securecoding.cert.org/confluence/display/seccode/PRE10-C.+Wrap+multi-statement+macros+in+a+do-while+loop
HTH,
Marijn
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Versio
> I noticed that text-fields are now missing their right border. Might be
> related to your fix.
>
> Marijn
There seems to be some positioning error, as text-fields are now
displayed on top of their labels. Sample program:
#lang racket/gui
(define root (new frame% (label "Te
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On 08/16/11 10:43, Marijn wrote:
> On 08/13/11 15:01, Matthew Flatt wrote:
>> At Thu, 11 Aug 2011 14:20:23 +0200, Marijn wrote:
>>> On 06/21/11 09:50, Marijn wrote:
>>>> On 06/20/11 18:29, Matthew Flatt wrote:
>>&g
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On 08/13/11 15:01, Matthew Flatt wrote:
> At Thu, 11 Aug 2011 14:20:23 +0200, Marijn wrote:
>> On 06/21/11 09:50, Marijn wrote:
>>> On 06/20/11 18:29, Matthew Flatt wrote:
>>>> I think I've found the problem and pu
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On 06/21/11 09:50, Marijn wrote:
> On 06/20/11 18:29, Matthew Flatt wrote:
>> I think I've found the problem and pushed a fix.
>
> Thanks for the quick fix Matthew! 1) 2) and 3) are now working fine
> :) but I do believe border
tton% (parent vp3) (label "button") (horiz-margin 5)))
(send root show #t)
produces the attached window with just a button, but no borders for any
of the panels...
Marijn
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lt,
since they are only to prevent flickering due to too frequent on-screen
resizing.
4) Finally, it seems that (style '(border)) doesn't work for me when I
add it on the line marked ** as a property of the vertical-panel.
All this (tested) on Linux.
Marijn
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