[racket-users] Repaint an editor<%> (when embedded in an editor-snip%) when it is copied.

I have extended a pasteboard% editor that overrides the `on-paint` method to draw a snazy background. (Also the min width and height have been set to 200.) When I put this editor in a snip using `(make-object editor-snip% (new snazy-pasteboard%))`, and insert that snip directly into drracket (via

[racket-users] rewrite the "assignment problems" with mapple on a racket

code mapple > restart: n:=4: > A:=[[1,7,1,3],[1,6,4,6],[17,1,5,1],[1,6,10,4]]: > w:=0: > for i1 to n do > for i2 to n do > for i3 to n do > for i4 to n do > if((i1<>i2)and(i1<>i3)and(i1<>i4) > and(i2<>i3)and(i2<>i4)and(i3<>i4)) > then w:=w+1; > S[w]:=add(A[i||k,k],k=1..n); > fi; > od;

[racket-users] rewrite the "assignment problems" with mapple on a racket

> restart: n:=4: > A:=[[1,7,1,3],[1,6,4,6],[17,1,5,1],[1,6,10,4]]: eqWorld.ipmnet.ru eqWorld.ipmnet.ru > w:=0: > for i1 to n do > for i2 to n do > for i3 to n do > for i4 to n do > if((i1<>i2)and(i1<>i3)and(i1<>i4) > and(i2<>i3)and(i2<>i4)and(i3<>i4)) > then w:=w+1; > S[w]:=add(A[i||k,k],k=1..n);

Re: [racket-users] anyone experiencing a problem with `raco pkg install` via github?

At Mon, 19 Dec 2016 12:57:48 -0800, Matthew Butterick wrote: > > > On Dec 19, 2016, at 12:01 PM, Matthew Flatt wrote: > > > > Here's why some downloads have been slow: The package server hasn't > > been updating its catalog, so the checksum reported by the catalog are > >

Re: [racket-users] anyone experiencing a problem with `raco pkg install` via github?

> On Dec 19, 2016, at 12:01 PM, Matthew Flatt wrote: > > Here's why some downloads have been slow: The package server hasn't > been updating its catalog, so the checksum reported by the catalog are > out of sync with the HEAD commit of some repos. Due to the way the Git >

Re: [racket-users] anyone experiencing a problem with `raco pkg install` via github?

At Mon, 19 Dec 2016 11:39:04 -0800, Matthew Butterick wrote: > All the "Resolving ..." queries to `pkgs.racket-lang.org` complete > successfully. > > But as soon as I start "Downloading repository > git://github.com/some-pkg-name" > it hangs indefinitely. I have been seeing much slower

[racket-users] anyone experiencing a problem with `raco pkg install` via github?

All the "Resolving ..." queries to `pkgs.racket-lang.org` complete successfully. But as soon as I start "Downloading repository git://github.com/some-pkg-name" it hangs indefinitely. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To

Re: [racket-users] REPL output editor speed

I'm not sure, but if this is the issue, it's happening somewhere in the implementation of text%, I believe. In particular, it seems to be the case that the `insert` method is being called once every 1,000 bytes (with a single string each time). Adding this printf: (printf "str/snp: ~s\n" (and

Re: [racket-users] REPL output editor speed

Just curious. #lang racket (for ([x 1000]) (displayln x)) The program above runs very quickly in DrRacket. I can hardly see other numbers than the final ones. For this program: #lang racket (for ([x 1]) (displayln x)) the first, say, 1000, lines are done in an instant, but

Re: [racket-users] REPL output editor speed

Thanks for the code reference. That will definitely take a while for me to grok. I will punt with a separate editor window for now and later get acquainted with the framework text.rkt code. Thanks again, John -- You received this message because you are subscribed to the Google Groups

Re: [racket-users]

I think probably that sentence should be deleted. It does what I guess you expect, namely it doesn't add any properties and calls to the result on impersonate-procedure are just like calls to its argument (in that case, anyway) Robby On Mon, Dec 19, 2016 at 10:18 AM, Shu-Hung You

[racket-users]

The documentation of impersonate-procedure states that if it is invoked with wrapper-proc equals #f and that there are no props, then the result is proc "unimpersonated". However, neither the impersonator wrapper-function nor the impersonator properties are removed in the following program, and

Re: [racket-users] REPL output editor speed

There is probably some performance improvements that could be made to this code: https://github.com/racket/gui/blob/master/gui-lib/framework/private/text.rkt#L2492-L3240 I've spent some time on this, but your comment about `insert` suggests that maybe there is another special case in there

[racket-users] REPL output editor speed

I’m in an situation where Dr. Racket suffices almost perfectly to replace a Python-based IPython notebook session. The REPL output is graphics and text, perfect for Dr. Racket. A problem is that for all but the smallest output, the REPL text output is simply too lethargic, even compared to

[racket-users] Re: Operations that create objects

Thank you for the examples and clarification. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit