> Use the lock method:
>
>(send e lock #t)
This works perfectly. Thanks!
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The fully expanded form of the original program doesn't have a require
that brings in displayln? So I'm not sure how Check Syntax could know
to draw an arrow.
Robby
On Sat, Dec 3, 2016 at 9:11 PM, Dupéron Georges
wrote:
> I made a copy-paste mistake, the
I made a copy-paste mistake, the replacement for the last line of "MyLang.rkt"
should use "body2" instead of "body":
#'(#%plain-module-begin (module nm lng (#%plain-module-begin . body2)))
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I'm writing a meta-language (a small extension of scribble/lp2), which
delegates to a second language. I am using the neat trick suggested to me by
Alex Knauth [1], but I have trouble getting the arrows to be drawn in DrRacket
for language "built-ins".
A boiled down version of the language
A few ideas:
1) Loading a lot of modules can be slow. You are already avoiding that by using
racket/base and racket/gui/base, so that's good, but it already takes me 0.5s
just to require these :-( . I don't know it there is much to do about this.
2) Your main.rkt might be doing a some lengthy
On 12/03/2016 02:15 PM, Winston Weinert wrote:
I managed to resolve the alignment question with the following lines:
(define e (send my-text-field get-editor))
(send e auto-wrap #t)
(send e set-paragraph-alignment 0 'center)
However, I'm still at a loss how to make the text-field% read-only
I managed to resolve the alignment question with the following lines:
(define e (send my-text-field get-editor))
(send e auto-wrap #t)
(send e set-paragraph-alignment 0 'center)
However, I'm still at a loss how to make the text-field% read-only yet
selectable.
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I didn't see a way to make the text in a text-field% right or center aligned.
There was some talk about using the set-paragraph-alignment on the
text-field%'s editable<%> (get-editor), but this didn't appear to work for me.
Also, I noticed if one sets the text-field%'s enabled to #f, it makes
I am doing this course:
https://www.edx.org/xseries/how-code-systematic-program-design
It uses the Basic Student Language and they use DrRacket, which is fine. Still,
I happen to also use other editors, like vim and emacs. With emacs, I use
racket-mode and I am able to run tests with
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