Thanks a lot, that's a cool data structure and I was thinking about
something similar. (Actually, I was thinking about the "chart" in "chart
parser" and was about to look up how these are usually implemented.)
I'm reluctant to do it on the side, though, because experience has told
me that these
The arrows, docs information, etc that Check Syntax draws use a
data/interval-map to manage that kind of information on the side.
On Fri, Jan 5, 2018 at 8:58 AM, Erich Rast wrote:
> Hi all,
> Is there a way to
FYI the package lux is like Big Bang and the package mode-lambda is like
2htdp/image. Right now, however, I am working on raart for doing ANSI user
On Fri, Jan 5, 2018 at 11:04 AM Matthias Felleisen
> Thanks for the feedback.
> Yes, b-b was designed
I think the effect that you're seeing with a same-phase `syntax-rules`
is described here:
It's not as easy to find an explanation in the documentation, but the
pointer at the end of
On Fri, Jan 05, 2018 at 08:09:59AM -0800, Andrew Kent wrote:
> In case you didn't see, there's a blog post (by Jay) about writing Conway's
> game of life in Racket. It spends some time talking about various
> optimizations to get performance:
Are you using a recent version of Racket? I see the same error in Racket
6.8, but not in more recent releases.
On Fri, Jan 5, 2018 at 2:15 PM, David Storrs wrote:
In DrRacket's "Package Manager" (under "File"), there's a "Copy from
At the command line, it's `raco pkg migrate`.
At Fri, 5 Jan 2018 15:51:33 -0500, David Storrs wrote:
> Ah, yes. That would be the problem -- I'm still on 6.6. Okay, time to
> My belief is that
(flat-contract-with-explanation get-explanation [#:name name]) →
get-explanation : (-> any/c (or/c
Ah, yes. That would be the problem -- I'm still on 6.6. Okay, time to upgrade!
My belief is that when I upgrade (on OSX) I will need to reinstall all
modules I've 'raco pkg install'd. Is there an easy way to
automatically port them all over?
On Fri, Jan 5, 2018 at 3:24 PM, Daniel Feltey
Brilliant. Thanks, Matthew.
On Fri, Jan 5, 2018 at 4:14 PM, Matthew Flatt wrote:
> In DrRacket's "Package Manager" (under "File"), there's a "Copy from
> Version" tab.
> At the command line, it's `raco pkg migrate`.
> At Fri, 5 Jan 2018 15:51:33 -0500, David Storrs
Wow! These libraries are great! Excited to discover about them :)
I'm also excited to see the ANSI user interface one, as a fan of
roguelikes (and ascii art)!
Jay McCarthy writes:
> FYI the package lux is like Big Bang and the package mode-lambda is like
> 2htdp/image. Right now, however, I
Thanks for the feedback.
Yes, b-b was designed for middle school, high school and college
freshman courses. But like all software, it eventually escapes and
makes it into the “real world”.
[ ASIDE What does this tell you about the terrible
training that most students get and
In case you didn't see, there's a blog post (by Jay) about writing Conway's
game of life in Racket. It spends some time talking about various
optimizations to get performance:
On Friday, January 5, 2018 at 9:14:39 AM UTC-5, cwebber wrote:
Oh yeah, I’ve even had the opportunity to speak to T.V. Raman about it! Cool
stuff, but it’s solving a different set of problems.
While it's a wonderfully powerful tool, Emacs is poorly suited to our
educational context. We work in schools where teachers are nervous about the
jump from Word to
Last night out of curiosity I started lazily adding some code to see how
long it would take me to write a game of life implementation in Racket.
Not exactly a challenging expidition game-authoring-wise, but a fun
little exercise anyway. You can see and play with the results here:
Is there a way to associate custom payload data to individual
characters and image snips in a text% instance? Maybe some package or
framework class that already exists?
I'd like to add custom data that is independent of styles but behaves
like them. Basically, I need to keep track of
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