Re: [racket] modules: require and provide behaviour

2012-04-20 Thread Harry Spier
Dear Matthias, Thank you very much and apologies. It works fine now. While going over your example, I noticed a typo in my code, I should have coded (require "get-devanagari-page1.rkt") instead of (require "get-devanagari-page.rkt") which was an older version where I didn't enclose the GUI cr

Re: [racket] modules: require and provide behaviour

2012-04-20 Thread Harry Spier
Apologies Danny, I should have removed the line "(require "imagemagick_interface.rkt")" It has nothing to do with the GUI and is only used later on. Harry On Fri, Apr 20, 2012 at 5:13 PM, Danny Yoo wrote: > Hi Harry, > > I'm a little confused, and need a little bit more information. > > I'm assum

Re: [racket] modules: require and provide behaviour

2012-04-20 Thread Danny Yoo
Hi Harry, I'm a little confused, and need a little bit more information. I'm assuming that the first file in your message is 'imagemagick_interface.rkt'. Is it the file that constructs the GUI, and provides the function 'get-devanagari-page'? When you show the content of another file called 'ge

Re: [racket] modules: require and provide behaviour

2012-04-20 Thread Matthias Felleisen
This works fine for me: #lang racket/load (module a racket/gui (provide get-devanagari-page) (define (get-devanagari-page) (define main-ocr-frame (new frame% [label "DEVANAGARI OCR"] [width 1]

[racket] modules: require and provide behaviour

2012-04-20 Thread Harry Spier
Dear list members, Perhaps someone could explain this "module,require and provide" behaviour. I've created a Racket module that provides a procedure that creates a simple GUI dialog to return a file path and another module that uses the procedure. The module to create the GUI is: #lang racket/

Re: [racket] tutorial: exploring the boundaries of outer space

2012-04-20 Thread Danny Yoo
Hi Brian, I wanted to revisit this! Reading back your comments and Eli's, I think I see now that syntax-parameterize is not what I want, because it doesn't respect lexical boundaries. The whole point of the 'outer' I'm trying to define is to respect those boundaries, even as I'm drilling holes in

Re: [racket] message-box too small to display title

2012-04-20 Thread Patrick Mahoney
Hello Mr. Spier, I ran into this issue recently-are you using racket on Windows out of curiosity? In short, I think you need to set auto-resize to #t explicitly upon init'ing your message. I submitted problem report 12714 to track this. #|Setting up the first frame and parent.|# (define parent1

Re: [racket] gui issue > frame updating control thread painter > questions about how to resolve the problem, attain eventual reactive semantics

2012-04-20 Thread Patrick Mahoney
> #lang racket > (require racket/gui/base) > > #|Hello all, > Patrick here- > First, my apologies for posting a non-working example-I hope I didn't > waste anyone's time. Secondly, thanks to Matthias and Robby for the > corrections-I will certainly refer to these when I use eventspaces again. > >

Re: [racket] The Racket Guide Error

2012-04-20 Thread Danny Yoo
> I've submitted a bug report on your behalf as: > >    http://bugs.racket-lang.org/query/?cmd=view&pr=12713 Cool. Matthew Flatt fixed this a few seconds ago: http://git.racket-lang.org/plt/25d7d49648..6dc3fbb72c Racket Users list: http://lists.racket-lang.org/users

Re: [racket] Apache does not get along with RKT WebServer?

2012-04-20 Thread Jay McCarthy
You might think I'd know more, but this is the extent of my Apache knowledge: http://docs.racket-lang.org/web-server-internal/Troubleshooting_and_Tips.html#(part._.How_do_.I_use_.Apache_with_the_.Racket_.Web_.Server_) Jay On Fri, Apr 20, 2012 at 10:16 AM, J G Cho wrote: > My search on previous

Re: [racket] The Racket Guide Error

2012-04-20 Thread Danny Yoo
> It looks like there is some error in section 6.1.1 of the Racket Guide. > > I think the picture is incorrect in that it show the files that should have > been in 'machine' folder in 'db' folder and vice versa. The code sample > refers them correctly I think but the picture is misleading. Agreed:

Re: [racket] Problem or bug in specifying GUI font

2012-04-20 Thread Kieron Hardy
I'm using a recent (nightly build) DrRacket (5.3.0.1--2012-04-12) on Vista and observe that 'roman works, but 'script and 'symbol fail with the message at the top left corner of the frame in a normal sized windows system font. - Kieron. On Fri, Apr 20, 2012 at 7:33 AM, Harry Spier wrote: > Dea

Re: [racket] Apache does not get along with RKT WebServer?

2012-04-20 Thread David Vanderson
Try putting the RewriteRule inside a Location directive in the apache config: RewriteEngine on RewriteRule ^(.*)$ http://localhost:8080/$1 [P,NE] Does that help? On 04/20/2012 09:16 AM, J G Cho wrote: My search on previous discussions on this topic did not bring up a definitive answer so all

Re: [racket] Other language levels in WeScheme?

2012-04-20 Thread namekuseijin
at the very least, he may use a fac-simile (define (for/list from to f) (if (> from to) '() (cons (f from) (for/list (+ 1 from) to f (define (id x) x) (define (double n) (+ n n)) (define (fact n) (apply + (for/list 1 n id))) (for/list 1 10 double) (for/list 1 10 fact) (fo

[racket] Apache does not get along with RKT WebServer?

2012-04-20 Thread J G Cho
My search on previous discussions on this topic did not bring up a definitive answer so allow me to ask this question one more time. First, what does work: ProxyRequests Off ProxyPreserveHost On ProxyPass / http://localhost:8080/ ProxyPassReverse / http://localhost:8000/ However, t

Re: [racket] Other language levels in WeScheme?

2012-04-20 Thread Danny Yoo
On Thu, Apr 19, 2012 at 11:30 PM, John Clements wrote: > Is WeScheme pinned on beginner for a while? My son is interested in writing a > simple turn-based RPG in WeScheme---something it seems admirably suited for, > by and large--but I'm dying for things like for/list. Am I missing a simple > s

[racket] The Racket Guide Error

2012-04-20 Thread Bikal Gurung
Hi, It looks like there is some error in section 6.1.1 of the Racket Guide. I think the picture is incorrect in that it show the files that should have been in 'machine' folder in 'db' folder and vice versa. The code sample refers them correctly I think but the picture is misleading. Bikal _

Re: [racket] Need some help for my first real experiment with scheme

2012-04-20 Thread Hendrik Boom
On Wed, Apr 18, 2012 at 08:54:54PM +0200, Pedro wrote: > So to put it in a simple way, I need to tokenize all my data and > create an index which I load into memory...? > Is this how it is usually done? For example, does my browser (firefox) > keep an index of all the words present in urls and page

Re: [racket] gui issue > frame updating control thread painter > questions about how to resolve the problem, attain eventual reactive semantics

2012-04-20 Thread Matthias Felleisen
Here is a solution in the DrRacket beginner language: (require 2htdp/universe) (require 2htdp/image) (define (bundle x) (make-bundle x '() '())) (launch-many-worlds (universe 'n/a (on-new (λ (u nw) (bundle u))) (on-msg (λ (u w m) (bundle m))) (state #t)) (big-bang 'n/a (to-draw (λ (w) (emp

[racket] message-box too small to display title

2012-04-20 Thread Harry Spier
I've created a simple message-box. It expands in width to display the message, but if the title is longer than the message, then the title is cut-off. Is there any way to have the message-box expand enough to display the title in that case. Thanks, Harry Spier Racket Users

[racket] Problem or bug in specifying GUI font

2012-04-20 Thread Harry Spier
Dear list members, I'm using Windows Vista When I create a window with a title as follows: #lang racket/gui ;Top level window (define main-ocr-frame (new frame% [label "DEVANAGARI OCR"] [width 1]

Re: [racket] gui issue > frame updating control thread painter > questions about how to resolve the problem, attain eventual reactive semantics

2012-04-20 Thread Robby Findler
The right approach here, I believe, is to have some fields in the canvas% that hold the most recently seen x and y coordinates. In on-event, update those fields and call the refresh method of the canvas. In on-paint, draw based on those coordinates. Robby On Thu, Apr 19, 2012 at 1:32 PM, Patrick

Re: [racket] Unlinking tool and package file injection

2012-04-20 Thread Sam Tobin-Hochstadt
On Fri, Apr 20, 2012 at 2:16 AM, Laurent wrote: > > After developing a tool using a development link, I want to test the file > injection of the package, so I removed the link. > The problem is that the tool still loads on DrRacket startup, even though > the development link does not appear in `ra