Hi again,
sorry for again asking such a basic FFI question, but I have a problem getting
an output string from the C side...
E.g. in one case, in my first attempt
(def-ocilib datetotext OCI_DateToText : (date_ptr : _pointer) (fmt : _string)
(size : _int) (strval : (_ptr o _string)) -> (result
In the following program, (sync (regexp-match-evt #rx"^..." in)) returns
'(#"123") but (file-position in) returns 0 instead of 3:
#lang racket/base
(require racket/port)
(define-values (in out) (make-pipe))
(display "12345" out)
(sync (regexp-match-evt #rx"^..." in))
(file-position in)
Tha
Since this is a public forum, so someone reading that post might also
find this thread, let me point out one more source of confusion.
Continuations do not manufacture more names *than there really are*.
So, no matter how you program (continuations or CPS, Ajax or not) you
still have to come up wi
On Sat, Jun 11, 2011 at 10:59 AM, Shriram Krishnamurthi
wrote:
> Where to start? Oh, where to start? Every sentence begins half-right
> and then ends up all-wrong. (Even the premise of this flame is wrong.
> Continuations are not solely about managing client-side state.)
>
> I guess it's up t
On Fri, Jun 10, 2011 at 8:59 PM, Shriram Krishnamurthi
wrote:
> I wonder if he's read the structure of JavaScript programs, which --
> because of the cooperative multi-tasking structure of JavaScript --
> have to return control to the event loop (ie, "terminate") whenever
> they make an Ajax requ
And I take what I said back: they are still crucial. Javascript really
just opens new doors that, pre-javascript, we had kind of wedged our
fingers underneath but hadn't really opened.
For example, just the other day, Casey crashed travelocity when he
tried to buy two tickets at once (he and Diana
Where to start? Oh, where to start? Every sentence begins half-right
and then ends up all-wrong. (Even the premise of this flame is wrong.
Continuations are not solely about managing client-side state.)
I guess it's up to Jay to post the brilliant follow-up that
will...well, who knows what wil
There may be a grain of truth to what he says (that the existence of
javascript in every browser makes continuation-based web servers less
crucial than it was before that) but overall that post just seems
confused.
Robby
On Fri, Jun 10, 2011 at 7:47 PM, Paul A. Steckler wrote:
> I came across th
I came across this post recently:
http://carcaddar.blogspot.com/2011/06/continuation-based-web-applications.html
The claim is that AJAX makes server-side continuations (invented at
PLT) unnecessary.
-- Paul
_
For list-related administrative tas
On Fri, Jun 10, 2011 at 7:03 PM, Richard Lawrence
wrote:
> Sam Tobin-Hochstadt
> writes:
>
>> I'll try to respond more comprehensively about the more general
>> question, but for this:
>>> (define-type Variable (Pair 'var Symbol))
>>> (define-predicate variable? Variable)
>>
>> Just use a struct:
Sam Tobin-Hochstadt
writes:
> I'll try to respond more comprehensively about the more general
> question, but for this:
>> (define-type Variable (Pair 'var Symbol))
>> (define-predicate variable? Variable)
>
> Just use a struct:
>
> (struct: variable ([s : Symbol]))
>
> Now you have `variable' an
That would be easier, but would also have to be added, I believe.
Robby
On Fri, Jun 10, 2011 at 4:09 PM, Rodolfo Carvalho wrote:
> Ok, thanks.
> Alt + G brings up a "Go to slide" window. Isn't there a way to do something
> similar for let's say Alt + V to bring something else like a video player
Ok, thanks.
Alt + G brings up a "Go to slide" window. Isn't there a way to do something
similar for let's say Alt + V to bring something else like a video player or
code editor?!
[]'s
Rodolfo Carvalho
On Fri, Jun 10, 2011 at 18:03, Robby Findler wrote:
> At the moment, I don't think that the
At the moment, I don't think that the slideshow pict objects (the
things that are displayed in the window) can react to mouse/keyboard
events to do what you want. Probably the easiest thing would be to add
something at the slide level that would let you direct the viewer to
put a GUI control somewh
Hello everybody,
Has anyone had the experience of embedding a "live code editor" into
Slideshow?
I woke up with this idea for a coming presentation, I would talk with slides
and from time to time I would show a code editor, type, and run a script
(not necessarily racket code) and see the result /
At Fri, 10 Jun 2011 14:51:00 -0400, Tony Garnock-Jones wrote:
> Hi Matthew, everybody,
>
> On 2011-06-09 7:35 PM, Matthew Flatt wrote:
> > Racket normally relies on memory limits imposed by the OS.
>
> After I posted my message, I thought to try ulimit. Unfortunately, it
> didn't help: I couldn'
I'll try to respond more comprehensively about the more general
question, but for this:
On Fri, Jun 10, 2011 at 2:12 PM, Richard Lawrence
wrote:
>
> And if it isn't possible, the cleanest workaround I can think of is to
> tag all Variable values, like:
>
> (define-type Variable (Pair 'var Symbol)
Hi Matthew, everybody,
On 2011-06-09 7:35 PM, Matthew Flatt wrote:
Racket normally relies on memory limits imposed by the OS.
After I posted my message, I thought to try ulimit. Unfortunately, it
didn't help: I couldn't find any setting smaller than all of available
RAM within which Racket w
Hi Racketeers,
I'm wondering if there's a way to specify a type in Typed Racket that is
an infinite subtype of an existing type. (Not sure if I'm using the
terminology correctly; by "subtype" I just mean a type whose values are a
subset of another type's values.)
For example, suppose I want to sp
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