[alexandria-devel] flatten depth param
Hi, I've found it useful to be able to specify a depth when flattening a list structure. The attached patch adds a :to-depth keyword parameter to the flatten function. For instance, (flatten '((a b) (c (d)) :to-depth 1) => (a b c (d)) Is this something that could be added? Thanks, -Garrett
On 16 January 2013 06:29, Garrett Kolpin <gkolpin@gmail.com> wrote:
Hi,
I've found it useful to be able to specify a depth when flattening a list structure. The attached patch adds a :to-depth keyword parameter to the flatten function. For instance,
(flatten '((a b) (c (d)) :to-depth 1) => (a b c (d))
Is this something that could be added?
Possibly. Please explain it in the docstring and send the patch as generated by git format-patch. Cheers, -- Nikodemus
Hello: I've created a patch for this. The only difference is that instead of flattening to a particular depth, it flattens by a particular number of levels. I thought this was more in the spirit of FLATTEN. If we want to flatten to a particular depth, it is a trivial computation. I've attached a patch for the function, as well as tests. Cheers, Robert Smith On Sat, Jan 26, 2013 at 6:12 AM, Nikodemus Siivola <nikodemus@random-state.net> wrote:
On 16 January 2013 06:29, Garrett Kolpin <gkolpin@gmail.com> wrote:
Hi,
I've found it useful to be able to specify a depth when flattening a list structure. The attached patch adds a :to-depth keyword parameter to the flatten function. For instance,
(flatten '((a b) (c (d)) :to-depth 1) => (a b c (d))
Is this something that could be added?
Possibly. Please explain it in the docstring and send the patch as generated by git format-patch.
Cheers,
-- Nikodemus
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I apologize all, I stupidly didn't realize that there was a patch already written. Well, it can't hurt to have another implementation to compare with, right? :) Cheers, Robert On Sat, Feb 23, 2013 at 1:57 AM, Robert Smith <quad@symbo1ics.com> wrote:
Hello:
I've created a patch for this. The only difference is that instead of flattening to a particular depth, it flattens by a particular number of levels. I thought this was more in the spirit of FLATTEN. If we want to flatten to a particular depth, it is a trivial computation.
I've attached a patch for the function, as well as tests.
Cheers,
Robert Smith
On Sat, Jan 26, 2013 at 6:12 AM, Nikodemus Siivola <nikodemus@random-state.net> wrote:
On 16 January 2013 06:29, Garrett Kolpin <gkolpin@gmail.com> wrote:
Hi,
I've found it useful to be able to specify a depth when flattening a list structure. The attached patch adds a :to-depth keyword parameter to the flatten function. For instance,
(flatten '((a b) (c (d)) :to-depth 1) => (a b c (d))
Is this something that could be added?
Possibly. Please explain it in the docstring and send the patch as generated by git format-patch.
Cheers,
-- Nikodemus
_______________________________________________ alexandria-devel mailing list alexandria-devel@common-lisp.net http://lists.common-lisp.net/cgi-bin/mailman/listinfo/alexandria-devel
participants (3)
-
Garrett Kolpin -
Nikodemus Siivola -
Robert Smith