I'm seeing the following error when trying to install mzscheme on a
Xen-hosted virtual environment. In the middle of 'make', I see this:
#
make mzschemecgc
make[4]: Entering directory `/home/dyoo/local/plt-4.2.5/src/mzscheme'
gc
On Fri, Jun 18, 2010 at 3:20 PM, Eli Barzilay wrote:
> On Jun 18, Danny Yoo wrote:
>> What other debugging information can I provide?
>
> Create a core dump, then use gdb to get a stack trace.
Ok, here's what I'm seeing:
d...@go:~/local/plt-4.2.5/src/mzscheme/gc2$ gdb
> Meanwhile, configure with `--disable-futures' to disable the use of
> thread-local variables in the run-time system, and then the build seems
> to work ok.
Thank you so much! Yes, this appears to work for me now.
_
For list-related administrati
I was just reading though John Reppy's "Concurrent Programming in ML"
and wanted to play with some code. Out of curiosity, I wrote the
following code to try to see what it would look like to simulate
semaphores using channels. How does it look?
;;
Hi everyone,
Unfortunately, it looks like the password on my account
(d...@hashcollision.org) on pkgd.racket-lang.org got compromised recently,
so I'm trying to figure out how to reset it now.
I don't see an option to do so except in the Login page. When I try to do
so, I ask it to "Email me
> I wish you could earn Racket badges and levels for completing exercises,
> getting +1'ed on the mailing list, and contributing code and documentation.
+1. Stack Overflow does this sort of achievement system. It feels
very much like a game.
_
F
We're smack in the middle of implementing web-world for Whalesong,
which is analogous to regular world, but with web pages. Unlike
regular world, the callbacks in web-world take in both the world as
well as a functional representation of the DOM.
We have a few programs and some initial documenta
I've never been able to use the Racket profiler module effectively,
which makes me very sad.
I want to use it because Whalesong takes way too much time to compile.
I'm looking at: http://docs.racket-lang.org/profile/index.html.
I've been able to run my program with it, and it dumps out an
impres
On Fri, Sep 2, 2011 at 4:33 PM, Danny Yoo wrote:
> We're smack in the middle of implementing web-world for Whalesong,
> which is analogous to regular world, but with web pages. Unlike
> regular world, the callbacks in web-world take in both the world as
> well as a functional
On Mon, Sep 5, 2011 at 2:18 PM, Shriram Krishnamurthi wrote:
> On Sat, Sep 3, 2011 at 11:17 PM, Shriram Krishnamurthi
> wrote:
>> Is there a way of checking whether a value position is undefined?
>> Specifically, I'm trying to recognize the undefined value put in
>> structures by SHARED. It app
I got some good feedback, and made some changes!
The code that's generating should behave under Firefox now. Please
try this again:
http://hashcollision.org/whalesong/examples/todo/todo.html
_
For list-related administrative tasks:
http://
>
> http://stackoverflow.com/questions/54971/profiling-visualization-tools
>
> which has a number of pointers that look useful. It also looks like
> graphviz is the most popular recommendation, so perhaps that's the
> best way to go -- slapping a GUI or an HTML rendering around it.
As an exampl
On Wed, Sep 7, 2011 at 12:00 PM, Joan Arnaldich wrote:
> Something worth noting is that they only offer CGI, whatever the
> language... so you won't be able to run the racket web server. AFAICT,
> the most cost-effective options for running the web server would still
> be a virtual shared host or
> JFYI, I have revised the documentation, which had a bunch of pretty
> bad points. But that's probably not what you want; hopefully my
> earlier reply was helpful, and more hopefully someone will write up a
> "guide" part for the docs, to similarly clarify things.
Apologies: I'm still very conf
> 2. Unfortunately Internet Explorer 8 on Windows 7 gives a page with
> red text saying:
>
> 'Error: unable to focus to "add-button": "JScript object expected"'
>
> 3. As for Internet Explorer 9: I keep telling Windows Update, "Yeah,
> I'll take a rain-check on that, thanks". But when I eventually
On Sun, Sep 11, 2011 at 1:44 PM, Jeremy Kun wrote:
> Is there an existing Racket analogue for the "define-type" language form
> from the PLAI text?
You can pull out specific things from a language or module by using:
(require (only-in some-module
language-feature-1 l
I wanted to share another small web-world demonstration in Whalesong.
Try this in Google Chrome:
http://hashcollision.org/whalesong/examples/boid/boid.html
Source code:
http://hashcollision.org/whalesong/examples/boid/boid.rkt
http://hashcollision.org/whalesong/examples/boid/index.html
> Danny: why do you think that changing those elements does less work
> than what happens when you create a new scene with the 2htdp/universe
> version of this program?
The diff-based approach I'm taking in web-world makes it easier to
preserve pieces of state embedded in the dom, without the user
I wanted to double check my understanding on why source locations have
several representations in Racket.
One of them is the srcloc structure:
http://docs.racket-lang.org/reference/exns.html#(def._((lib._racket/private/base..rkt)._srcloc))
But there's also the list and vector representations, all
On Tue, Sep 13, 2011 at 8:03 AM, Noel Welsh wrote:
> That is not one expression, but several. Wrap it in a (begin ...) and
> it should work. I.e.
Yikes! Don't continue to encourage him to use process here.
At the very least, even the raw use of eval is probably safer than
what's being proposed.
> Such a cold community. :(
> I give up. I'm sorry for bothering you with my bad english and stupidity,
> I'll never post to this group again.
Hello!
Whoa! I think you are reading a lot more aggression out of those
replies than what actually exists. Your english is fine; no one has
made a singl
[CCing the Racket mailing list]
> Yes, I got this to work. But, what if I don't want to use DrRacket, but just
> pure old console Racket.exe instead? Or emacs?
Oh! Then it should just print like Lisp mode, if I remember
correctly. Give me a sec; let me double check that.
;
Sometimes I want to write a module language that extends the
functionality of another, but I want to write that extension in
racket/base, not in the extending language.
At the moment, I do this like this:
;;;
> In #lang scribble/manual, if I type
>
> @codeblock{
> #lang racket
> }
>
> the output (in HTML) has the word "racket" underlined, which seems
> fair enough;
I see this is the case if I run scribble manually:
scribble --html some-file.scrbl
However, the red underline shows up, not because it
I'm working on automating the build process for Android phone packages
(.apk) for Whalesong. Before I do so, I'd like people who have
android phones to try the following:
http://hashcollision.org/tmp/WhereAmI-debug.apk
This is that geolocation test program from earlier, but as an Android
pac
An alternative to the APK stuff, offline web-app using HTML 5's
application caching, is also in place. See:
http://hashcollision.org/tmp/where-am-i/where-am-i.html
or
http://hashcollision.org/tmp/rain/index.html
Once you visit the page once, it should persist in the cache. If you
try
The awk macro refers to the documentation in scsh; there are examples
of the awk macro there in:
http://www.scsh.net/docu/html/man-Z-H-9.html#node_sec_8.2.1
Some of the examples there may need some adaptation, as I don't think
Racket has an "sre" library to support the writing regexps with
s
> Not sure what inexact=? does. What's needed is something like a
> three-argument function that tests |x-y| < epsilon. Epsilon should
> not be implicit.
It's not in the racket/base language, but it sounds like you're
describing =~ from the teaching languages:
http://docs.racket-lang.org/
I've been receiving reports that my WeScheme project has been raising
errors on IE. In response, I've rolled back to a previous version
(reverting CodeMirror 2 back to CodeMirror 1). I want to make sure
that IE is running WeScheme fine.
If you have time, please you visit:
http://www.weschem
> It wasn't clear to me from the video how someone programs the behavior of
> the games. I wonder whether that is currently slick visual programming, or
> it's pretty much traditional programming (albeit with text editor features
> like a pop-up color chooser).
I've got it downloaded and have loo
On Fri, Sep 30, 2011 at 12:52 PM, Sam Tobin-Hochstadt wrote:
> The videos are still being processed, and I hope they will be up soon,
> but I don't have an estimated date.
Just curious: is anything happening with regards to the videos?
_
For list
I'd like to be able to tell raco make to use
(compile-context-preservation-enabled #t) when compiling my PLaneT
package. I don't see a configuration option I can provide in
info.rkt, so I'm not sure if this is possible with the current
info.rkt system.
Motivation: Whalesong does its work by grabb
On Thu, Nov 3, 2011 at 3:42 PM, Eli Barzilay wrote:
> 50 minutes ago, Danny Yoo wrote:
>> I'd like to be able to tell raco make to use
>> (compile-context-preservation-enabled #t) when compiling my PLaneT
>> package. I don't see a configuration option I can pro
In the absence of an official revokation procedure for PLaneT
packages, I've released a mock package of Moby. It's there just to
print the following message:
Moby is obsolete, and has been replaced with the Whalesong project.
See:
http://hashcollision.org/whalesong
for installation a
Whalesong is a Racket to JavaScript compiler that's intended to
replace Moby Scheme. It's documentation can be found here:
http://hashcollision.org/whalesong
The documentation shows how to generate the launcher for 1.5.
Major changes include:
* Corrected bug that would cause Whalesong
Is PLaneT down for anyone else?
_
For list-related administrative tasks:
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I've been thinking about how to support hash-iterate-first and
hash-iterate-next in Whalesong. In Whalesong, my functional hash
implementation is based on left-leaning red-black trees. The
hash-iterate-* functions are a little weird for me since they return
numbers, and I had expected them to pro
Here's a list of changes in Whalesong 1.7:
* Added primitives: hash-keys, hash-values, hash-for-each, hash-map, write.
* Merged some changes to support sk's cs019 language level.
I didn't make a separate release note for 1.6. In 1.6, Whalesong
constraints its use of the stack to support
On Fri, Nov 11, 2011 at 12:07 PM, Paul Leger wrote:
> On 11/11/2011 11:02 AM, Sam Tobin-Hochstadt wrote:
>>
>> Unfortunately, Typed Racket needs a little more help from the
>> programmer here. This will work:
>>
>> #lang typed/racket
>> (: g (case-> (-> Number)
>> (Number -> Numbe
On Mon, Nov 14, 2011 at 3:12 PM, Todd O'Bryan wrote:
> One thing that annoys me about DrRacket is that, if you have an error
> in the Definitions pane, none of your required modules are loaded, so
> if you try to fiddle in the Interactions window, you get "undefined"
> errors.
By error, do you m
On Mon, Nov 14, 2011 at 9:04 PM, Todd O'Bryan wrote:
> I should have been clearer. It is compile-time errors. Runtime work fine.
Ok, cool.
I have this problem myself, but as a professional programmer, I use a
revision control system like 'git' to save my hide. The basic idea is
that I checkpoin
Quick check: does the Racket bytecode format change whether or not the
platform is 32-bit or 64-bit? I would guess not, but I want to make
sure. Thanks!
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/users
> Using the draw-circle function defined in draw.ss, I wanted to draw a green
> circle centered at (posn 150 150), with radius 20.
>> (draw-circle (make-posn 150 150) 20 'green)
> . . draw-circle: expects a posn as first argument, given #
> I don't understand the above error. Draw-circle expects a
> I don't know what => means in formlets.
The documentation talks about what => means in the context of a formlet here:
http://docs.racket-lang.org/web-server/formlets.html#(part._.Static_.Syntactic_.Shorthand)
_
For list-related administrati
On Sun, Nov 20, 2011 at 11:25 PM, Nadeem Abdul Hamid wrote:
> I'm trying to create a planet archive and am getting the error below.
> Any ideas on what might be wrong? Thanks,
Yeah, I've seen it when a PLaneT package uses the planet/version or
scribble/planet libraries. If you're using those too
Hi everyone,
This release addresses some bugs:
---
Bugs fixed:
* appcache manifests did not allow for external network communication.
* --compress-javascript didn't work under certain situations in 1.7.
* view-up, view-down, view-left, view-right produced bad error
messages without trace
Hi everyone,
Whalesong 1.9 corrects a few issues, particularly the use of external
CSS stylesheets on the Android phone browsers.
---
Changes:
* Added view-has-attr? and remove-view-attr.
* Added example that shows the use of checkboxes. See the
"hot-cross-buns" example in
http://hash
There's a bug in Racket 5.2 that prevents Whalesong from compiling. Try
either a pre-release version of Racket, or Racket 5.1.3.
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/users
Hi everyone,
Whalesong 1.11 is a bug-fix release that may slightly impact the
performance of Whalesong applications.
Changes:
* Whalesong's will not release control to the browser during
long-running computations. Program output may be a little bit more
delayed as a result.
* Miscellane
> I currently learning scheme macros, and trying to figure out how to do
> two particulars things:
[code cut]
You may want to look at syntax-case style macros, which let you do
computation at compile time. When I try to write macros purely via
syntax-rules templates, occasionally I have difficu
Hi everyone,
Whalesong 1.12 includes a few more error traps to catch misuse of
web-world primitives; the major change is that using the web-world
handler functions outside the lexical context of a big-bang is now
illegal. So the following buggy code:
(define a-view (initial-view ...))
(bi
> I am new to Racket and Lisp/Scheme in general. I am trying to write a simple
> rest web service in Racket, but I'm not making much progress. Unfortunately,
> I don't find the Racket docs to be very helpful. I guess my brain just isn't
> wired right ;-) Asking questions on the mailing list woul
> Just for the readability, is it possible to write
>
> some-list
> (proc-1 some-list)
> (proc-2 (val-of-last-expression))
> ...
> (proc-n (val-of-last-expression)) ;where n is 'largeish'
>
> instead of
>
> (proc-n ... (proc-2 (proc-1 some-list
Possible. The syntax in Racket is progr
On Saturday, December 17, 2011, Niitsuma Hirotaka <
hirotaka.niits...@gmail.com> wrote:
> Is this valid behavior?
>
The sub.scm file you posted looks malformed, so some copy-and-paste error
probably happened.
Otherwise, can you also say what you expected to see?
__
2011/12/17 Racket Noob :
>
> I've already read. Continue tutorial is not bad, I passed through it
> (congratulations, Danny Yoo, you're man!)
Wait, wait. You can't thank me on this one and ignore Jay on this:
he's a co-author. He absolutely shares the blame for t
On Sunday, December 18, 2011, Niitsuma Hirotaka
wrote:
> How about this?
> http://d.hatena.ne.jp/niitsuma/20081113/1324207362
> I add some comment
>
Ok, thanks for posting that code.
Do you expect modules to be re-invoked on every require? I am trying to
understand your concern about "valid beh
On Sunday, December 18, 2011, Niitsuma Hirotaka
wrote:
> Thank you.
> I clearly understand.
>
> By the way,
> Are there standard way exporting global variable from some module ?
I usually avoid global name exports unless the name stands for a constant
value. Otherwise, I may export a parameter
I'm trying to extract documentation strings for all the functions in
racket/base. By documentation strings, I truly mean strings. Here's
the progress I'm making on this:
https://github.com/dyoo/extract-docstring
It's buggy still, and I'm working out the kinks.
The process I'm using to app
On Mon, Dec 19, 2011 at 3:37 PM, Robby Findler
wrote:
> What is the usecase for this information? Giving people quick access
> to docs in the REPL?
For my particular use case, I need to take slices of the documentation
and re-present them in a Scribble document.
Specifically: WeScheme has a sub
The server that hosts my web site will be swapping machines and IP
addresses tomorrow, so the tutorials I've got on it may be momentarily
innaccessible tomorrow. I'll try to get the DNS records corrected tomorrow
when the swap happens as quickly as I can. (I'm in Palm Springs now with
intermitte
On Tuesday, January 3, 2012, José Lopes wrote:
> Hello,
>
> I am using Racket 5.2.0.7.
> I defined a name that holds an image, embedded in a Racket source file,
and I exported the name.
>
Does this describe the situation you're seeing?
http://bugs.racket-lang.org/query/?cmd=view%20audit-trail&da
On Sun, Jan 8, 2012 at 3:23 PM, Jordan Schatz wrote:
> This code runs, but I'm guessing that its not the "right way" to do it.
>
> (define (js-date [i (current-date)])
> (let ([original-format (date-display-format)]
> [return ((λ ()
> (date-display-format 'rfc2822)
>
On Sat, Jan 7, 2012 at 4:18 AM, Neil Van Dyke wrote:
> How do I get the complete path to Racket executables like "raco", in a
> portable way?
'find-exe' from the compiler/find-exe library should do the trick:
http://docs.racket-lang.org/raco/exe.html#(def._((lib._compiler/find-exe..rkt)._find-ex
On Tue, Jan 10, 2012 at 4:09 PM, Robby Findler
wrote:
> It isn't redefined, it is shadowed-- the definitions in a module are
> in one lexical scope lower than the module position. Racket's module
> system doesn't allow redefinition.
The relevant section in the documentation that mentions the abil
> What language difference(s) might be responsible for the vast performance
> difference we're observing? If it would be helpful to see the code I can
> share it, but it's about 1000 LoC and I don't think it's proper to post it
> publicly. I've tried to construct a small program that shows the
> Can someone tell me, is there some advantage or added funtionality in using
> the @syntax in a template over the first example using quosiquotes?
Section 7.4 of the Web Server docs shows a difference:
http://docs.racket-lang.org/web-server/templates.html#(part._.Escaping)
A version with qu
On Tue, Jan 17, 2012 at 5:09 PM, J G Cho wrote:
> Following instruction per http://hashcollision.org/whalesong/, I tried to run
>
> #lang racket/base
> (require (planet dyoo/whalesong:1:12/make-launcher)) in DrRacket. (v
> 5.2 with unlimited memory flag, OSX Snow Leop with 1GB memorty)
Whalesong
> I am thinking, write the code in rkt enjoying its syntax check, unit
> testing, etc. Use whalesong to provide runtime.js+lib.js for various
> clients that can use js. If not, serve it over HTTPS via PLT
> WebServer. (I am thinking I don't have to do another re-write like
> this for sometime.)
>
>
My apologies! My hosting provider is doing something very strange at
the moment, and all the content on hashcollision.org is currently
offline. I'm not doing some kind of SOPA protest! I'm trying to
figure out what's going on now.
Racket Users list:
http://lists.racket-l
It's taking a good few seconds for it to respond to http requests.
Racket Users list:
http://lists.racket-lang.org/users
For the upcoming version of WeScheme, I'm planning to use the real
'compile' from Racket. I'm trying to better understand a part of the
compilation system. Here's a sample program I'm using to play:
;
> After struggling to document my first planet package, I find that
> either Scribble or PLaneT is incorrectly rendering the links in
> my package documentation's table of contents. Is this a bug or am
> I doing something wrong?
>
> To see the issue, visit:
> http://planet.plt-scheme.org/package-so
On Thu, Feb 2, 2012 at 12:59 AM, mikeyao wrote:
> I'm learning scheme and code in emacs and geiser. I want to watch the whole
> recursive process to understand well. I know drracket can do it. Is it other
> tools(command line) that can use in emacs?
A simple tool you can use is the 'racket/trace
> I have tried trace library but I have a problem.
> If I put my definitions in the interactive window, everything is fine.
> But if I put the definitions in the definition window and then I try to
> trace them, I get error "set!: cannot modify a constant: ".
> Why?
Let me assume you're doing some
I end up needing to look at an HTML file in a web-serving context
every once in a while. Rather than copy the files over to my personal
web server, I do this instead:
;;
#!/usr/bin/env racket
#lang racket/base
;; Quick and dirty program to view a local file under a web se
Where's the source?
On Feb 4, 2012 4:40 PM, "John Sampson" wrote:
> Hello -
>
> I have found code for a Scheme version of the Porter stemming algorithm.
>
> Supposedly it has been tested on PLT Scheme but when loaded into
> DrRacket there are many unreadable characters and syntax errors.
>
> Is t
On Mon, Feb 6, 2012 at 4:23 AM, Neil Caldwell wrote:
> Hi everyone,
>
> As I may have mentioned in an earlier thread, I've started developing
> bindings to libxmmsclient, the client library for xmms2.
+1; very cool!
Racket Users list:
http://lists.racket-lang.org/users
Would a structure type property be a viable alternative? Example:
;;
#lang racket/load
(module a racket
(define-values (prop:S S? S-ref) (make-struct-type-property 'S))
(provide S?)
(define-struct s (a b) #:transpare
On Sun, Feb 5, 2012 at 3:42 AM, John Sampson wrote:
> Hello -
>
> see http://programmingpraxis.com/2009/09/08/porter-stemming/
Awesome. Ok, I've taken the code there and put it up as a Racket
PLaneT package to make it easier to use.
For example:
;;
On Wed, Feb 8, 2012 at 4:59 PM, John Sampson wrote:
> Hello -
>
> Many thanks for your interest. I have used the version just uploaded to
> PLaneT
> and it works. For a Racket ignoramus like me this is a buzz! Many thanks to
> all.
No problem! Currently, I've got no time to write the proper
doc
I was looking at trying to implement a structure that represents a
dictionary, but some of the elements of the interface don't make too much
sense to me yet: there are elements corresponding to ref/set as I expected,
but what I didn't expect were iteration as well.. Since there's a separate
protoc
I can't get to documentation or PLaneT at the moment.
Racket Users list:
http://lists.racket-lang.org/users
On Mon, Feb 13, 2012 at 11:52 PM, Joe Gilray wrote:
> Warning: extreme newbie question ahead.
>
> I wrote the following fibonacci function:
>
> ; function that returns the next fibonacci number each time it is called
> ; invoke as (fib)
> (define fib
> (let ([n0 -1] [n1 1])
> (lambda ()
>
> (let ([fib-sequence (in-producer fib 'donttellmecauseithurts)])
I realize that I forgot to add explanation.
This line creates a "sequence" by repeatedly calling your fib
function. in-producer will continue to call fib until it sees the
second argument. But since the fibonacci numbers don't en
On Tue, Feb 14, 2012 at 12:32 AM, Joe Gilray wrote:
> Danny,
>
> Thanks for the explanations. These are powerful ideas. It appears not to
> generate the sequence until needed, very nice.
>
> How could I modify this to do the "less than n" idea?
A stream is a sequence, and also has a few more f
On Wed, Feb 15, 2012 at 3:10 AM, Joe Gilray wrote:
> The code that Danny wrote to create fib-stream works great with his
> peek-fibs function, but I really don't understand stream-first.
>
> I wrote:
>
> ; function to use the fib-stream to generate a list of all fibs < n
> (define (fib-stream-less
> I've learned a lot tonight. I have been reading the manuals, but they are
> hard to get your arms around when you are just starting out. Also it would
> be great if the manuals had more and longer examples. Have anyone looked
> into doing a Racket "cookbook"?
Some of the documentation is meant
Hi everyone,
Whalesong 1.15 is mostly a bug-fix release. At the very least,
Whalesong 1.15 should match Racket's behavior on the following silly
program:
;;
#lang planet dyoo/whalesong
(define (puzzle n)
(if (= n
So I'm looking at the Realm of Racket page at:
http://realmofracket.com/, and the kid who is sitting on the left
looks, well, unhappy. Is he dealing with a tough programming problem?
Please tell me he will be happier when the book's finally released.
:)
Racket Users list:
>> Many thanks for your interest. I have used the version just uploaded to
>> PLaneT
>> and it works. For a Racket ignoramus like me this is a buzz! Many thanks to
>> all.
Ok, I just added docs to it. :)
Here:
http://planet.racket-lang.org/package-source/dyoo/porter-stemmer.plt/1/2/planet-docs/
Just wanted to post this just in case it helps anyone else:
;;;
#lang racket
(require plot)
;; histogram-with-points: (sequenceof (sequence any/c real)) ->
(listof renderer2d)
;;
;; Given a sequence of data to draw as ba
> "It is possible to extend the basic notion of 'function call' to
> allow functions to have multiple return points. This turns out to be
> a surprisingly useful mechanism. This article conducts a fairly
> wide-ranging tour of such a feature..."
Hmmm! I haven't done a deep look into the pape
The following code is bigger than the limit, but I've always thought
it was cute:
#lang racket
;; see: http://mail.python.org/pipermail/tutor/2001-April/004888.html
(define (a n) (* 2 n (add1 (* 2 n
(define (b x y) (if (<= (abs x) (abs y))
(+ (a (- y)) (abs (- y x)))
On Saturday, February 25, 2012, Ashok Bakthavathsalam wrote:
> Is there a way to set the font style used by the "display" function to be
> a "fixed" type?
Hi Ashok,
At the moment, no. I'll put on my TODO to change the default font to
'fixed', and hope to have that ready as soon as possible.
__
On Mon, Feb 27, 2012 at 11:38 AM, Rüdiger Asche wrote:
> I'd like to split the components of my Racket project into multiple files
> according to this structure:
>
> contents of file1:
>
> (letrec ((id1 body1)
> ...
>
> ...
> )
> (main execution body using id1, id
Hi everyone,
The following is work that Jens Axel Soegaard has done: he's written
bindings for RaphaelJS in Whalesong! The following is very, very
tentative, but it's so cool I can't bear to stay quiet about it. :)
First, see the program source:
http://hashcollision.org/tmp/raphael-demo/rap
On Tue, Feb 28, 2012 at 2:31 AM, Rüdiger Asche wrote:
> yes, but the docs for include also say that "If the source is not a complete
> path string, then path-spec is resolved relative to
> (current-load-relative-directory) if it is not #f, or relative to
> (current-directory) otherwise." Is that a
On Tue, Feb 28, 2012 at 12:56 AM, Danny Yoo wrote:
> Hi everyone,
>
> The following is work that Jens Axel Soegaard has done: he's written
> bindings for RaphaelJS in Whalesong! The following is very, very
> tentative, but it's so cool I can't bear to stay quiet abo
On Wed, Feb 29, 2012 at 4:33 PM, Ashok Bakthavathsalam
wrote:
> Will eval-string work even if the string is the normal mathematical
> notation?
> For example, "1+1" or "8*74-2" ?
No, but there is an example in Racket's parser-tools library
(parser-tools/examples/calc) that will parse very simple
Hi Rüdiger,
The top of all four files should have
#lang racket
at the very top. This declares the file to be a module in the full
Racket language. Other documentation out there that are a few years
old might refer to the older style of defining modules, where there's
an outer "(module foo m
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