Wonderful! Also amazed to see how the image comes out in the emacs repl in racket-mode

@jbclements pull requests welcome to either add yours or make things extensible :slightly_smiling_face:

@robby Agh! Got me. :slightly_smiling_face:

/kick-drdr

@mflatt What is the #:tag feature in define-cpointer-type, do?

(I ask because define-cstruct seems to use it, but its not documented.

(Trying to make my own define-cstruct that can make structs for different (ABI breaking) versions of the same library. Which is why this is relevant to me.)

It specifies a tag as an alternative to the default 'id. I’ll make a note to add that to the docs.

Ah, okay

I’d be happy to do it if that helps.

@drdeeglaze standard-cat is rad!

Yes…it should get merged. :slightly_smiling_face:

We could have pict/farm. :slightly_smiling_face:

@samth what’s that command do?

@royall it resets the CI server build at http://drdr.racket-lang.org\|drdr.racket-lang.org

Best not to run it unless that’s hung

@ben The cat-silhouette function would be good way to build that version. I can also have #:left-eye and #:right-eye options that take picts and place them appropriately. Probably #:nose too.

Also @mflatt I submitted a PR to add it to the docs: https://github.com/racket/racket/pull/1844

/kick-drdr

Can someone explain why these two programs print different things? Maybe @mflatt or @samth? #lang racket (require (for-syntax racket/syntax) syntax/parse/define) (define-simple-macro (mac) #:do [(define x (generate-temporary)) (define intdef-ctx (syntax-local-make-definition-context)) (define x* (internal-definition-context-introduce intdef-ctx x)) (syntax-local-bind-syntaxes (list x) #f intdef-ctx) (println (identifier-binding x*))] (void)) (mac) ; => #f #lang racket (require (for-syntax racket/syntax) syntax/parse/define) (define-simple-macro (mac) #:do [(define x (syntax-local-introduce (generate-temporary))) (define intdef-ctx (syntax-local-make-definition-context)) (define x* (internal-definition-context-introduce intdef-ctx x)) (syntax-local-bind-syntaxes (list x) #f intdef-ctx) (println (identifier-binding x*))] (void)) (mac) ; => 'lexical The only difference is the addition of syntax-local-introduce in the second program.

I don’t see how that could happen, so I hope @mflatt can explain

It appears to happen in racket7 as well, fwiw.

I’m on a chrome book, so everything has to be done through the browser. I’ve been using http://pasterack.org\|pasterack.org as a REPL, and that’s a rough experience. Especially with all the captcha requirements as you iterate. Eagerly awaiting racketscript + pict + racket/draw support so I can fiddle with images faster. I can ssh into a machine with racket for text-based iteration, but graphical stuff is hard.

Got my hands on a mac and figured out the whiskers for the cat. Wrote some contracts. Tomorrow, docs! (compilation takes too long for pasterack to render the image now)