That happens to the best and worst of us. I switch among
syntax-rule, syntax-rules, syntax-case, and syntax-parse.
I have made the same mistake as your friend.
On Nov 8, 2012, at 10:06 AM, Greg Hendershott wrote:
> In general I love internal define and have been using it heavily.
>
> A
In general I love internal define and have been using it heavily.
After the initial infatuation, I still love it. I've also come to
appreciate that sometimes let can be clearer. I like having the
choice.
Another way internal define can bite you is if you're not real crisp
on your understanding of
Here's a different comparison of let-vs-internal-define, using your code.
Your internal define example (hopefully whitespace doesn't get mangled
by however you're reading this message):
(define (partial-tree elts n)
(cond [(= n 0)
(values EMPTY-TREE elts)]
[else
(de
On Fri, Nov 2, 2012 at 4:33 PM, Sam Tobin-Hochstadt wrote:
> Just a cautionary tale,+++
>
>
Good point. Thanks for sharing.
Racket Users list:
http://lists.racket-lang.org/users
On Fri, Nov 2, 2012 at 5:29 PM, Grant Rettke wrote:
> Internal define is awesome.
I agree in general, but I did recently fix a bug in Typed Racket that
was made possible entirely by use of internal `define`:
https://github.com/plt/racket/commit/0e71f2d5dc#L1R16
The original code had a `let`, whi
Internal define is awesome.
On Fri, Nov 2, 2012 at 4:17 PM, Matthias Felleisen wrote:
>
> I guess we should take this also as a confirmation of the style guide :-)
>
>
> On Nov 2, 2012, at 5:05 PM, Danny Yoo wrote:
>
> > I was just looking at exercise 2.64 of SICP, one that creates a BST out
> o
I guess we should take this also as a confirmation of the style guide :-)
On Nov 2, 2012, at 5:05 PM, Danny Yoo wrote:
> I was just looking at exercise 2.64 of SICP, one that creates a BST out of an
> ordered list of elements:
>
> http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-16.h
I was just looking at exercise 2.64 of SICP, one that creates a BST out of
an ordered list of elements:
http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-16.html#%_thm_2.64
However, because of all the nested lets, I have to admit that I was having
a hard time reading it!
So I rewrote it w
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