Matthias Felleisen writes:
> We should start with a Racket version for Land of Lisp.
> It would be much nicer in the Universe world than in an
> old Lisp world.
I think this would be really cool! I was thinking of doing this for my
own edification. It might be fun for interested parties to
It is documented that way:
http://docs.racket-lang.org/xml/index.html#(def._((lib._xml/main..rkt)._cdata))
I'm not sure why it was originally written that way.
Jay
On Tue, Nov 9, 2010 at 9:53 PM, YC wrote:
> Hi all -
> read-xml apparently does not normalize/strip the wrapper
> when creating t
Hi all -
read-xml apparently does not normalize/strip the wrapper
when creating the cdata struct. Is there a reason why they are not
stripped?
#lang scheme
(require xml)
(define xml "")
(define xexpr (xml->xexpr (document-element (read-xml (open-input-string
xml)
(cdata-string (last xexp
On 11/7/10 6:58 AM, Matthew Flatt wrote:
At Sun, 07 Nov 2010 01:51:29 -0400, David Van Horn wrote:
Is there a way to make scribble render the result of evaluating examples
as if the examples were run in a student language in DrRacket?
In addition to initializing the namespace, you need to set
On Mon, Nov 08, 2010 at 10:38:40PM -0500, Matthias Felleisen wrote:
>
> We should start with a Racket version for Land of Lisp.
> It would be much nicer in the Universe world than in an
> old Lisp world.
How is _Land of Lisp_? It looks tempting, and I might finally
get to apply some of the gr
On Tue, Nov 9, 2010 at 12:39 PM, scouic wrote:
> and the error log :
> [Tue Nov 09 21:26:09 2010] [error] [client 127.0.0.1] Premature end of
> script headers: try.cgi
> [Tue Nov 09 21:26:09 2010] [error] [client 127.0.0.1] try.cgi:1:0: read:
> expected only alphanumeric, `-', `+', `_', or `/' cha
As much as I want to look at that I want to pass or fail this one on my
own.. Otherwise I'm just cheating myself...
On 9 November 2010 16:27, namekuseijin wrote:
> On Tue, Nov 9, 2010 at 6:50 PM, Peter Breitsprecher
> wrote:
> > Ok, here is the exact assignment.
> >
> > Tiny Scheme Details: Th
On Tue, Nov 9, 2010 at 6:50 PM, Peter Breitsprecher
wrote:
> Ok, here is the exact assignment.
>
> Tiny Scheme Details: The Scheme or LISP that you are going to implement
> should include the following primitives:
hey, it's you lucky day! Tiny Scheme is implemented already and is an
open-source
On Nov 9, 2010, at 12:50 PM, Peter Breitsprecher wrote:
> Ok, here is the exact assignment.
Blecch, I don't like this assignment :).
Based on the text, it appears that your professor wants you to do both parsing
and evaluation. And some GUI stuff. Glug.
Here's what I'd do: since your profes
Ok, here is the exact assignment.
*
*
*Tiny Scheme Details**:* The Scheme or LISP that you are going to implement
should include the following primitives:
*T, NIL, CAR, CDR, CONS, ATOM, EQ, NULL, INT,*
*PLUS, MINUS, TIMES, LESS, GREATER COND, QUOTE, DEFINE.*
T and NIL represent true and false.
On Nov 9, 2010, at 12:32 PM, Peter Breitsprecher wrote:
> Ok, here is the code I have written so far for the function I am having
> trouble with...
I'm also a bit curious: does your assignment say anything about using or not
using 'read' ?
John Clements
smime.p7s
Description: S/MIME crypto
Hey,
with the command line mzscheme it works, so i don't know where is the
problem :
actually, try.cgi is this one :
#!c:/Racket/mzscheme.exe
(display "HTTP/1.1 200 OK \r\n")
(display "Content-type: text/plain; charset=iso-8859-1 \n\n")
(display "hello")
The apache access log says :
127.0.0.1 - -
On Nov 9, 2010, at 12:32 PM, Peter Breitsprecher wrote:
> Ok, here is the code I have written so far for the function I am having
> trouble with...
>
> (define (rep-loop)
> (newline)
> (display "repl>")
> (read-token))
I'm going to ignore rep-loop.
>
> (define (read-token)
> (let ((e
Ok, here is the code I have written so far for the function I am having
trouble with...
(define (rep-loop)
(newline)
(display "repl>")
(read-token))
(define (read-token)
(let ((expr (read-char)))
((cond [(char-whitespace? expr) (read-token1)]
[(eq? expr #\() (read-token2)]
On Nov 9, 2010, at 12:27 PM, Peter Breitsprecher wrote:
> I'd lie but no.. I was just trying to clarify what I was looking for. I gave
> a the code for one of the functions I had written, and then an example of the
> input the user is giving below, and then tried to describe in more detail
>
I'd lie but no.. I was just trying to clarify what I was looking for. I
gave a the code for one of the functions I had written, and then an example
of the input the user is giving below, and then tried to describe in more
detail what I needed help with...
On 9 November 2010 15:23, Shriram Krishna
Hi,
That would not be considered an "example" for at least two reasons. Do you
see why?
On Nov 9, 2010 12:17 PM, "Peter Breitsprecher"
wrote:
As an example, I want have most of the functions for Plus, Minus already
written.
Here is the code for it.
(define (plus num1 num2)
(+ num1 num2))
Tha
As an example, I want have most of the functions for Plus, Minus already
written.
Here is the code for it.
(define (plus num1 num2)
(+ num1 num2))
That is childs stuff... Here is where I am having the problem, and please
keep in mind I am new to DrRacket...
If my program accepts input such as
On Nov 9, 2010, at 11:48 AM, Peter Breitsprecher wrote:
> I am in the process of writing a simple scheme interpreter for a class I
> have. I am running into an issue with regards to parsing the input properly.
> I will try and explain what I want to do and tell me if I am way off base or
> n
I am in the process of writing a simple scheme interpreter for a class I
have. I am running into an issue with regards to parsing the input
properly. I will try and explain what I want to do and tell me if I am way
off base or not. I have a procedure set up to read the input from the
user. Whic
Thanks, worked like a charm!
On 11/09/2010 03:38 PM, Ryan Culpepper wrote:
> Eduardo Bellani wrote:
>> But as you can see here:
>>
>> (define (diva-link:frame-mixin super%) ... )
>>
>> diva-link is a frame-mixin. So my problem is probably my lack of
>> understanding of the mixin mechanism. But my
You may want to check out the documentation here:
http://docs.racket-lang.org/guide/scripts.html?q=script
which discusses running Racket in scripts. Also, as suggested by other
people, you should try running this from the command line first.
Thanks,
-Everett
On 11/09/2010 10:09 AM, Sam Ph
I made the example from the free chapter (ch 8, the Hunt the Wumpus
game) work in Racket last week by writing macros and function
definitions to get the LISP code running under Racket with minimal
modifications. I haven't gotten to rewriting it in Universe yet, but I
did wonder if it would hav
Eduardo Bellani wrote:
But as you can see here:
(define (diva-link:frame-mixin super%) ... )
diva-link is a frame-mixin. So my problem is probably my lack of
understanding of the mixin mechanism. But my doubt remains, with a
clearer cause :)
The file diva-link.ss has many mixins. Line 572 (fr
But as you can see here:
(define (diva-link:frame-mixin super%) ... )
diva-link is a frame-mixin. So my problem is probably my lack of
understanding of the mixin mechanism. But my doubt remains, with a
clearer cause :)
Thanks for the reply
On 11/09/2010 03:15 PM, Robby Findler wrote:
> close-cu
close-current-tab is a method on the frame, I believe.
Robby
On Tue, Nov 9, 2010 at 11:12 AM, Eduardo Bellani wrote:
> Hello there.
>
> I am trying to add this keybinding, but without success:
>
> (keybinding "c:x;c:k" (λ (editor evt)
> ;; close current tab (or buffer)
>
Hello there.
I am trying to add this keybinding, but without success:
(keybinding "c:x;c:k" (λ (editor evt)
;; close current tab (or buffer)
(send editor close-current-tab)))
The error I got is this:
send: no such method: close-current-tab for cla
Hello there.
I am trying to add this keybinding, but without success:
(keybinding "c:x;c:k" (λ (editor evt)
;; close current tab (or buffer)
(send editor close-current-tab)))
The error I got is this:
send: no such method: close-current-tab for cla
On Mon, Nov 8, 2010 at 9:37 PM, scouic wrote:
> What's wrong here ? Must i write #lang racket at the top, must i change
> mzscheme.exe with gracket.exe ... ?
> I don't really understand why i've an apache internal server error ...
> ps : in my apache httpd.conf i've the line > AddHandler cgi-scrip
I've been wanting to implement a fork-like feature for places where a
new place is created as a clone of its parent.
A deep namespace-copy could be useful in that scenario.
On 11/08/2010 04:49 PM, Jay McCarthy wrote:
Could namespaces be dicts and we could write dict-copy?
Jay
On Mon, Nov 8, 2
Does this script work from the command line? If not, it certainly
won't work from the web server. If it does work from the cmd line that
will get us some way to debugging it.
N.
On Tue, Nov 9, 2010 at 5:37 AM, scouic wrote:
> test.cgi :
> #!c:\Program Files (x86)\DrRacket\mzscheme.exe
> (display
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