Just to clarify my previous message...
Say, I want to include 2htdp/image and 2htdp/universe libraries so that
once I start DrRacket, I can type "circle" in the interactions pane even
before pressing the "run" button. The same libraries should be available
directly for racket and gracket, as well
Matthew Butterick wrote on 02/28/2015 11:19 PM:
"Caught on with everyone else"? When I looked into SXML a couple years
ago, it seemed like it was already somewhere between dying and dead. [1]
No, SXML is alive and well. One paragraph... And I was speaking of
when Scheme people went one wa
On Sat, Feb 28, 2015 at 4:45 PM, Neil Van Dyke wrote:
> * X-expressions are in official Racket, perhaps because they were already
> used for the old DrScheme documentation browser(?) before SXML caught on
> with everyone else, so people looking now assume that X-expressions are the
> way to go.
>
on this page
~/.racket/6.1.1/pkgs/sxml/sxml/doc/sxml/sxpath.html
I read this:
"Like sxpath, but only accepts an XPath query in string form, using the
standard XPath syntax.
Deprecated; use sxpath instead."
so I'd like to get the hang of sxpath but I'm somehow stuck on how to translate
txpat
Matthew Butterick wrote on 02/28/2015 06:49 PM:
If the latter, then you may find that using native Racket data
structures (esp. the X-expression) and native XML-friendly functions
(like `match`) is more convenient.
Either SXML or X-expressions are OK for most purposes.
But, IMHO, SXML is som
Thanks for the reply.
I have a suite of xslt transforms already done, so it would be easiest
to run them as is.
That said, the xslt transforms are a small fraction of the total work
that I have already done on the application in Common Lisp. It will of
course be a substantial effort to conve
It's not clear whether you already have XSLT transforms that you want to
use in Racket, or if you're mentioning XSLT just because it's a method of
parsing & transforming XML. If the latter, then you may find that using
native Racket data structures (esp. the X-expression) and native
XML-friendly fu
If I want to ensure that certain libraries get automatically included
(required) in the initial racket/gracket/drracket environments, where
should I add them?
I tried /racket/collects/init.rkt but that didn't seem to work. I didn't
remove the .zo file though...
br, jukka
I’m getting a similar error on Travis CI for my measures-with-dimensions
package:
https://travis-ci.org/AlexKnauth/measures-with-dimensions/jobs/52573161#L200
syntax-local-module-exports: unknown module
module name: #
compilation context...:
/home/travis/build/AlexKnauth/measures-with-d
I don't like debugging with printf, although Medic does seem cool.
I like to turn errors into test cases and then trace the execution of
the program and turn one test case into more. This is a nice way to
debug because it ensures the same error won't come up again.
Jay
On Sat, Feb 28, 2015 at 2:
Having spent a bunch of time writing Python over the last year (while
building Pycket [1]), the debugger is the one thing I wish I had in
Racket. This isn't because it interacts with C (I've not used any C
extensions), but because it makes debugging much faster than when I
have to use printf (my us
I think we don't miss a conventional debugger in Racket (Emacs or Dr)
because, unlike say Python, Racket is not a shallow layer over some
unsafe amalgam of C and C++. Sure there is some of it left but our
crashes don't leave core dumps because most of them are safe.
I agree that on occasion it w
DJ wrote on 02/28/2015 11:49 AM:
I have spent a half hour searching for info on how to run xslt
transforms in racket. All that I can find is a mention that sxml /used
to have/ xslt but doesn't any more. I would prefer native racket
rather than some kind of ffi solution if possible.
I don't kn
On 28/02/2015 16:33, Greg Hendershott wrote:
Sure, I hardly ever want a debugger for Racket, in the way I used one
heavily and religiously for C/C++ (to step through new code the first
time instead of just hitting Run). After all we have the REPL, and
functions. And TBH printfs usually suffice.
Ok - new to racket. I would like to use it because I know Common Lisp,
but need something that provides good cross-platform gui capabilities.
(I can't afford a commercial implementation of CL.)
My software will harvest data from several web services that provide
results in xml.
I have spent
Thank you folks. This is reassuring.
And now, back to our regularly scheduled program
Mike
Quoting Leif Andersen :
Hello,
I've gotten one message from you in the past (requesting offline
documentation in DrRacket), which got two replies.
~Leif Andersen
On Fri, Feb 27, 2015 at 8:17 PM,
> Don't make me want to go back to programming Racket in Emacs :-)
> But thanks for mapping Emacs back into the fold. -- Matthias
The more I do with racket-mode, the deeper my appreciation for
everything that DrRacket does. It's really quite amazing.
Also the more I program in Emacs Lisp, the mo
Wow. I like the design.
I like that the design is not similar to the circle in The Hudsucker
Proxy: "You know. For kids!"
Sidenote:
Lately my Twitter feed says people like Phil Hagelberg (aka
Technomancy) and John Carmack (makes some games?) are teaching their
kids how to code using Rack
Based on your description and the stack trace, I think this is probably
a bug that I fixed in November (after the v6.1.1 release):
https://github.com/plt/racket/commit/50a8863169
Thanks for the report!
At Tue, 24 Feb 2015 23:06:22 -0500, Ben Lerner wrote:
> I ran into an unfortunate situation
I ran into an unfortunate situation last night with DrRacket, where I
was editing a single scribble file, and DrRacket basically locked up in
a gc loop (the recycle icon was flashing, syntax highlighting was
glacially slow, and the entire UI was mostly frozen.) There were two
threads which see
hi.
i'm trying to run racket (v6.1.1.8) under valgrind.
(valgrind --num-callers=24 --vex-iropt-register-updates=allregs-at-each-insn
--tool=memcheck --trace-children=yes /var/tmp/racket/bin/racket)
but racket segfaults when scheme_handle_stack_overflow
calls scheme_longjmpup(&scheme_overflow_jmp-
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Hi, I'm trying to do something that I think should be simple, and
can't figure out a good way to do it.
I want to get verbatim output (for code examples) in Scribbled PDF to
be _smaller_ than the default. (nested #:style 'smaller ...) has no
effect, and various other hacky things I've tried like
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