As a meta-point, one thing our experience with trying to put together
multiple files in different languages into programs suggests that
putting the information telling us which language a given file
supposed to be in should be with the file, not with the reference to
the file (and not nowhere). Tha
I think something like this could be made to work as, say, a `raco`
command.
If it were really implemented by writing to a new file, then source
locations would all be wrong, of course. But it looks like the `#lang`
protocol might work with an input stream that is different from the one
that named
I might be a bit lost here but can’t you do the moral equivalent of this:
cat my-dsl.rkt program-in-my-dsl.rkt > crude.rkt; racket crude.rkt
where my-dsl.rkt is
#lang racket/base ;; or your favorite #lang line
and program-in-my-dsl.rkt is
(displayln "I am in my special language now”)
I've always thought that should be possible -- for instance, if someone
were to implement some pre-existing language in Racket, it would be nice to
be able to say "require this using #lang X" so that it can be parsed and
bound correctly. Eg. if you had a Javascript implementation and some
function
On Thursday, May 5, 2016 at 5:39:44 PM UTC-7, Matthew Flatt wrote:
> At Thu, 5 May 2016 17:32:20 -0700 (PDT), Jack Firth wrote:
> > Does that evaluate the file as if it were entered in a REPL?
>
> Yes.
What if I don't want REPL semantics, but I want behavior identical to if the
file began with t
At Thu, 5 May 2016 17:32:20 -0700 (PDT), Jack Firth wrote:
> On Thursday, May 5, 2016 at 5:28:06 PM UTC-7, Matthew Flatt wrote:
> > At Thu, 5 May 2016 17:14:57 -0700 (PDT), Jack Firth wrote:
> > > Suppose I have a file in some custom language, like #lang foo, but it
> omits
> > > the #lang foo li
On Thursday, May 5, 2016 at 5:28:06 PM UTC-7, Matthew Flatt wrote:
> At Thu, 5 May 2016 17:14:57 -0700 (PDT), Jack Firth wrote:
> > Suppose I have a file in some custom language, like #lang foo, but it omits
> > the #lang foo line. Is there a way I can run the racket command line
> > program
> >
At Thu, 5 May 2016 17:14:57 -0700 (PDT), Jack Firth wrote:
> Suppose I have a file in some custom language, like #lang foo, but it omits
> the #lang foo line. Is there a way I can run the racket command line program
> in a way where it says "treat this file as if it starts with the line #lang
>
Suppose I have a file in some custom language, like #lang foo, but it omits the
#lang foo line. Is there a way I can run the racket command line program in a
way where it says "treat this file as if it starts with the line #lang foo"?
I'm having trouble parsing the "Running Racket or Gracket" se
I think you can implement exactly this API using `make-syntax-introducer`.
Sam
On Thu, May 5, 2016, 5:14 PM Matthew Butterick wrote:
>
> On May 5, 2016, at 10:43 AM, Matthew Butterick wrote:
>
> Of course, one can reveal the scopes with `(syntax-debug-info stx
> 'context)`
>
>
> That should've
On May 5, 2016, at 10:43 AM, Matthew Butterick wrote:
> Of course, one can reveal the scopes with `(syntax-debug-info stx 'context)`
That should've read:
`(hash-ref (syntax-debug-info stx) 'context)`
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Thanks Jay,
Will check on it during work tomorrow.
Tim
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For more opti
Hi Tim,
I consider this an error. The Web server tries to avoid interpreting
anything as UTF-8 unless asked by the servlet. Header comparison
incorrectly converted to UTF-8 and I just pushed a fix. Can you verify that
it works now with your workload?
Jay
On Thu, May 5, 2016 at 11:28 AM, Tim Brow
On May 3, 2016, at 2:40 PM, Matthew Flatt wrote:
> More specifically, the problem is in converting definitions to
> `let-values` as opposed to `letrec-values`. If you have
>
> (define x^{s1,s2} 1)
> (define x^{s1} 2)
> x^{s1,s2}
Now that we live in a world of scope sets, is there a way to tre
Folks,
I have a web server, which in production is receiving a user agent
in its header which includes the phrase:
#"FBCR/M\351ditel"
It seems to be a mobile from Morocco. I’m forcing the
request-headers/raw promise on my request; and I get:
“bytes->string/utf-8: string is not a well-formed U
Is there anything we could do at the distro packaging level that would
make this automatic?
Vincent
On Thu, 05 May 2016 09:05:25 -0500,
Alex Knauth wrote:
>
>
> > On May 5, 2016, at 9:55 AM, phil jones wrote:
> >
> >> Ubuntu just upgraded me to Racket 6.5.
> >>
> >> However my program which
Ah . OK. That seems to work.
Many thanks.
One question. Does this import older versions of the libraries? If the
libraries have also been updated, does it get the newest versions? Or does that
need a different installation?
cheers
Phil
On Thursday, 5 May 2016 11:05:32 UTC-3, Alex Knauth wr
> On May 5, 2016, at 9:55 AM, phil jones wrote:
>
>> Ubuntu just upgraded me to Racket 6.5.
>>
>> However my program which uses sxml is now broken.
>> Is this a library / package I need to reinstall after the 6.5 upgrade? Is
>> the sxml library itself not working in 6.5?
> Frog also isn't wo
Actually it's looking like the Ubuntu upgrade killed a bunch of stuff.
Frog also isn't working. Or rather, raco no longer recognises the "raco frog"
instruction.
Does this mean we basically have to re-install all our racket packages and
tools after an upgrade? Is that a racket thing or a Ubunt
Hi,
Ubuntu just upgraded me to Racket 6.5.
However my program which uses sxml is now broken.
I get this error message :
standard-module-name-resolver: collection not found
for module path: sxml
collection: "sxml"
in collection directories:
Anyone got any ideas?
Is this a library / pac
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