[racket-users] [racket][draw] some APIs should be more open

2017-04-11 Thread WarGrey Gyoudmon Ju
This is a little awkward, there are lots of simple classes defined in racket/draw, font%, color%, pen%, brush% and so on. They just hold a group of plain data, hence opportunities to be inspected easily. However by default all classes are opaque, the easiest (and perhaps unique) way to handle this

Re: [racket-users] Package documentation link issue

2017-04-11 Thread Matthew Flatt
It's a bug in the pkg-build process, and I should have it fixed for the next build. At Tue, 11 Apr 2017 18:11:08 -0400, Tony Garnock-Jones wrote: > Thanks, Philip -- that could well be a bug in the catalog UI. I can't > check it out until after the OOPSLA deadline, so I've filed >

Re: [racket-users] Package documentation link issue

2017-04-11 Thread Tony Garnock-Jones
Thanks, Philip -- that could well be a bug in the catalog UI. I can't check it out until after the OOPSLA deadline, so I've filed https://github.com/tonyg/racket-pkg-website/issues/42 to keep track of it until then. Regards, Tony On 04/11/2017 01:21 PM, Philip McGrath wrote: > I recently

[racket-users] Package documentation link issue

2017-04-11 Thread Philip McGrath
I recently posted a package "recaptcha", and I noticed a problem with the documentation link that I'm not sure how to fix. Google stylizes the name as reCAPTCHA, and I've capitalized it that way in the title of the documentation, but I called the actual package "recaptcha" so that you can "raco

[racket-users] Names for flat-contract-with-explanation contracts

2017-04-11 Thread Philip McGrath
Is it possible to give a name to a contract created with contract-with-explanation? To illustrate, this example: > #lang racket > (define has-explanation/c > (flat-contract-with-explanation >(λ (val) > (λ (blame) >(raise-blame-error blame val >

Re: [racket-users] Announcing Leibniz, a new language in the Racket universe

2017-04-11 Thread Konrad Hinsen
On 10/04/17 17:02, Shriram Krishnamurthi wrote: Let me ask a few questions that may nudge you a bit: What is an example of a system you want to model? For instance: Do you want to be able to model simple linear motion? Uniform acceleration? Do you want to be able to model predator-prey? Or