Added.
At Mon, 6 Jan 2014 12:04:16 -0800, John Clements wrote:
>
> On Jan 6, 2014, at 11:59 AM, Matthew Flatt wrote:
>
> > I don't think there's a good way to write type assertions as the
> > moment, so let's add one. What syntax do you suggest?
>
> The simplest would just be a has-type that l
The `enter!` form is analogous to `require`, where both are syntactic
forms. It sounds like you want something analogous to
`dynamic-require`, but there's currently no `dynamic-enter!`.
We can add `dynamic-enter!` to `racket/enter`. Meanwhile, though, you
may have to use `eval` as a workaround.
A
Hello,
I'm trying to make a wrapper for enter! (from racket/enter) but the
filename argument gets read by enter! as a symbol rather than the value it
is bound to. How can I expand the argument into a string for this case?
--
Cheers,
Mark Watts
Department of Computer Science
University of Texas
1) Has anyone written a Racket FFI to either the OpenOffice or LibreOffice
API ?
2) The interface is called UNO and from a very very brief look at the
documentation it appears to be written in C++ but there is a tool that they
say "maps all types to their corresponding C type declarations with a f
Ok, finally using FFI works fine.
I implemented:
(define (socket-exists? f)
(mode-exists f S_IFSOCK))
(define (pipe-exists? f)
(mode-exists f S_IFIFO))
(define (block-device-exists? f)
(mode-exists f S_IFBLK))
(define (character-device-exists? f)
(mode-exists f S_IFCHR))
(define (reg
On 2014-01-06 15:45:07 -0500, Asumu Takikawa wrote:
> Does anyone know an easy way to add extra indentation to pretty printed
> output using racket/pretty?
>
> For example, suppose I want to add pretty printed output after part of
> an error message like:
>
> expected: (
> )
Actuall
I forget the details, but maybe try to call the default
pretty-print-print-line and add your own output there instead?
Robby
On Mon, Jan 6, 2014 at 2:45 PM, Asumu Takikawa wrote:
> Hi all,
>
> Does anyone know an easy way to add extra indentation to pretty printed
> output using racket/pretty
Hi all,
Does anyone know an easy way to add extra indentation to pretty printed
output using racket/pretty?
For example, suppose I want to add pretty printed output after part of
an error message like:
expected: (
)
I would want any linebreak-separated portions to align with the
On Tue, Jan 7, 2014 at 12:54 AM, Matthew Flatt wrote:
> How are the images produced in your Scribble program/document?
>
Currently I'm using 2htdp/image to generate the images, and including them
in Scribble using
figure, figure* and figure-here.
If you're referencing ".png" files via `image`,
On Jan 6, 2014, at 11:59 AM, Matthew Flatt wrote:
> I don't think there's a good way to write type assertions as the
> moment, so let's add one. What syntax do you suggest?
The simplest would just be a has-type that looks like an application.
(define (id x)
(has-type number x))
Actually, t
I don't think there's a good way to write type assertions as the
moment, so let's add one. What syntax do you suggest?
At Mon, 6 Jan 2014 11:53:54 -0800, John Clements wrote:
> I’ve bitten the bullet and announced to my PL class that we’ll be using #lang
> plai-typed. Right now, I’m trying to fig
I’ve bitten the bullet and announced to my PL class that we’ll be using #lang
plai-typed. Right now, I’m trying to figure out if there’s an easy way to do
type debugging; in particular, I anticipate wanting to make assertions about
the type of expressions that are buried inside of other expressi
On Mon, 6 Jan 2014 06:34:11 -0700
Matthew Flatt wrote:
> At Mon, 6 Jan 2014 13:47:30 +0100, Manfred Lotz wrote:
> > On Mon, 6 Jan 2014 10:32:49 +0100
> > Manfred Lotz wrote:
> >
> > > I was to quick to state this is a solution as it is not a good
> > > idea if for example a socket file will be
All,
Please find below the call for papers for the 3rd International Workshop on
Trends In Functional Programming in Education, TFPIE 2014. Apologies in
advance for multiple copies you may receive.
Best regards,
James Caldwell
Call for Papers
__
Rian, you want a syntactic abstraction that hides this mechanism:
#lang racket
(module library racket
(provide
;; syntax
;; (define/safe (f x ...) e ...)
;; introduces a safe function that is ... and prints its name as just 'f'
define/safe)
(define-syntax-rule
(defi
As far as I know, no.
Vincent
At Sun, 5 Jan 2014 19:51:10 -0500,
Rian Shams wrote:
>
> Perfect, I didn't know structs could be used like that.
> Thank you!
>
> As a follow-up question, can you directly create functions with a custom
> printing method, without having to go through structs?
>
>
How are the images produced in your Scribble program/document?
If you're referencing ".png" files via `image`, then if you could just
reference ".pdf" files instead. In particular, you could write `image*`
that converts a ".png" to ".pdf" and calls `image`.
If you're generating bitmaps some other
On Mon, 6 Jan 2014 13:47:30 +0100
Manfred Lotz wrote:
> On Mon, 6 Jan 2014 10:32:49 +0100
> Manfred Lotz wrote:
>
> > I was to quick to state this is a solution as it is not a good idea
> > if for example a socket file will be shown as a duplicate of normal
> > file having size zero.
> >
> > F
At Mon, 6 Jan 2014 13:47:30 +0100, Manfred Lotz wrote:
> On Mon, 6 Jan 2014 10:32:49 +0100
> Manfred Lotz wrote:
>
> > I was to quick to state this is a solution as it is not a good idea if
> > for example a socket file will be shown as a duplicate of normal file
> > having size zero.
> >
> > Fo
On Mon, 6 Jan 2014 10:32:49 +0100
Manfred Lotz wrote:
> I was to quick to state this is a solution as it is not a good idea if
> for example a socket file will be shown as a duplicate of normal file
> having size zero.
>
> For the time being I guess I have to look how to implement it using C
> s
Thanks to both of you for sharing your code, this should help me get
started.
Nathaniel
On Fri, Jan 3, 2014 at 4:40 PM, Doug Williams
wrote:
> I maintain all of my source code on Sourceforge under the Cognidrome
> project. You can get the code or the .plt file for the Sesame interface
> from th
I was to quick to state this is a solution as it is not a good idea if
for example a socket file will be shown as a duplicate of normal file
having size zero.
For the time being I guess I have to look how to implement it using C
stat call from Racket.
--
Manfred
Racket
On Mon, 6 Jan 2014 05:32:58 +0100
Manfred Lotz wrote:
> On Sun, 5 Jan 2014 14:37:08 -0700
> Matthew Flatt wrote:
>
> > At Sun, 5 Jan 2014 21:45:59 +0100, Manfred Lotz wrote:
> > > This might be a stupid question. But how do I find out in Racket
> > > if a file is a socket or a haracter resp. bl
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