[racket] Hosting the try-racket REPL.

I get errors when trying to type in a multi-line function.  Am I doing something wrong?



________________________________
 From: Jay McCarthy <jay.mccarthy at gmail.com>
To: J Arcane <jarcane at gmail.com> 
Cc: Racket Users <users at racket-lang.org>; Robby Findler <robby at eecs.northwestern.edu>; Marc Burns <m4burns at csclub.uwaterloo.ca> 
Sent: Monday, September 22, 2014 12:05 PM
Subject: Re: [racket] Hosting the try-racket REPL.
 

J and I chatted a little and he got his DNS working and also I added

http://try.racket-lang.org/

as an alias for it.

In general, the Racket team is willing to give out subdomains of
r-l.org for projects that would like them, so they don't have to buy
their own DNS addresses. Just email the list or one of us directly to
ask.

Jay

On Mon, Sep 22, 2014 at 1:17 AM, J Arcane <jarcane at gmail.com> wrote:
> Hmm.
>
> Alright, replacing the calls to slideshow with calls directly to pict, as
> well as commenting out the racket/gui/base calls successfully gets the code
> to run without X.
>
> However, something about how it converts the picts for web isn't working, so
> instead of a neat little circle, for instance, I get "(pict '(prog
> #<procedure:... etc." instead.
>
> I suspect this is probably something to do with a difference in behavior in
> how images are converted by the server, which does a convertible? test and
> then runs:
>  (run-code ev `(bytes-append #"data:image/png;base64,"
>                          (base64-encode (convert ,res 'png-bytes) #"")))
>
> At an idiot's guess, something is different about how pict is making the
> images, so convertible? is #f and the code just prints the (pict '(prog...
> stuff.
>
> I've set up a fork here: https://github.com/jarcane/try-racket
> I'm still working on getting the DNS set properly though, so no
> try-racket.org yet; the servlet is public at http://104.131.18.192:8000/ but
> I haven't figured out how to get try-racket.org to go there yet.
>
>
> <robby at eecs.northwestern.edu> wrote:
>>
>> Maybe you can use  slideshow/code-pict instead?
>>
>> Robby
>>
>> On Sun, Sep 21, 2014 at 6:00 PM, Marc Burns <m4burns at csclub.uwaterloo.ca>
>> wrote:
>> > The culprit is the slideshow/code module loaded into the sandbox
>> > evaluator. Requiring slideshow/code attempts to establish an X server
>> > connection.
>> >
>> > On Mon, Sep 22, 2014 at 12:12:37AM +0300, J Arcane wrote:
>> >> Greetings,
>> >>
>> >> For some time now, it's bothered me a bit that Racket doesn't have an
>> >> online REPL currently hosted anywhere. There's one written here:
>> >> https://github.com/voila/try-racket
>> >>
>> >> But no one's hosted it anywhere. So I took it upon myself to fix that.
>> >> I've
>> >> purchased try-racket.org and a basic DigitalOcean droplet to host it
>> >> on,
>> >> but I've hit a snag: I can't get it to run.
>> >>
>> >> It runs more or less without trouble on my personal FreeBSD box, but on
>> >> my
>> >> Debian 7 droplet I waded through countless dependency issues until
>> >> finally
>> >> I reached what seems to be this same error:
>> >>
>> >> http://bugs.racket-lang.org/query/?cmd=view%20audit-trail≺=12465
>> >>
>> >> Presuming that perhaps this was in someway trying to run Racket in an
>> >> actual GUI window whether I wanted it to or not, I attempted to run it
>> >> as
>> >> --script, but this just quits silently instead, leaving no servlet
>> >> behind
>> >> either.
>> >>
>> >> Any ideas what I might be doing wrong? or have I hit a proper bug? (IME
>> >> it's usually the former ... )
>> >>
>> >> John Berry
>> >> http://jarcane.github.com
>> >
>> >> ____________________
>> >>   Racket Users list:
>> >>  http://lists.racket-lang.org/users
>> >
>> > ____________________
>> >   Racket Users list:
>> >  http://lists.racket-lang.org/users
>
>
>
> ____________________
>   Racket Users list:
>  http://lists.racket-lang.org/users
>



-- 
Jay McCarthy
http://jeapostrophe.github.io

           "Wherefore, be not weary in well-doing,
      for ye are laying the foundation of a great work.
And out of small things proceedeth that which is great."
                          - D&C 64:33



____________________
  Racket Users list:
  http://lists.racket-lang.org/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20140922/3e4f6ee8/attachment.html>