* filter-list
@ 2014-04-16 22:01 Michael Heerdegen
2014-04-17 2:13 ` filter-list Grant Rettke
0 siblings, 1 reply; 5+ messages in thread
From: Michael Heerdegen @ 2014-04-16 22:01 UTC (permalink / raw)
To: help-gnu-emacs
Hi,
Is there something like
| (defun filter-list (pred list)
| "Make a list of all LIST elements satisfying PRED."
| (let ((deleted '#:deleted))
| (delete deleted
| (mapcar (lambda (el) (if (funcall pred el) el deleted))
| list))))
existing in Emacs Lisp? I can't find it, but I would expect such
an elementary function would be built in. Do I miss something?
Thanks,
Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: filter-list
[not found] <mailman.19722.1397685716.10748.help-gnu-emacs@gnu.org>
@ 2014-04-17 0:54 ` Stefan Monnier
2014-04-17 12:28 ` filter-list Michael Heerdegen
0 siblings, 1 reply; 5+ messages in thread
From: Stefan Monnier @ 2014-04-17 0:54 UTC (permalink / raw)
To: help-gnu-emacs
> Is there something like
> | (defun filter-list (pred list)
There's cl-remove-if.
Stefan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: filter-list
2014-04-16 22:01 filter-list Michael Heerdegen
@ 2014-04-17 2:13 ` Grant Rettke
2014-04-17 12:33 ` filter-list Michael Heerdegen
0 siblings, 1 reply; 5+ messages in thread
From: Grant Rettke @ 2014-04-17 2:13 UTC (permalink / raw)
To: Michael Heerdegen; +Cc: Emacs Help
https://github.com/magnars/dash.el#-filter-pred-list
Grant Rettke | AAAS, ACM, FSF, IEEE, Sigma Xi
grettke@acm.org | http://www.wisdomandwonder.com/
“Wisdom begins in wonder.” --Socrates
((λ (x) (x x)) (λ (x) (x x)))
“Life has become immeasurably better since I have been forced to stop
taking it seriously.” --Thompson
On Wed, Apr 16, 2014 at 5:01 PM, Michael Heerdegen
<michael_heerdegen@web.de> wrote:
> Hi,
>
> Is there something like
>
> | (defun filter-list (pred list)
> | "Make a list of all LIST elements satisfying PRED."
> | (let ((deleted '#:deleted))
> | (delete deleted
> | (mapcar (lambda (el) (if (funcall pred el) el deleted))
> | list))))
>
> existing in Emacs Lisp? I can't find it, but I would expect such
> an elementary function would be built in. Do I miss something?
>
>
> Thanks,
>
> Michael.
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: filter-list
2014-04-17 0:54 ` filter-list Stefan Monnier
@ 2014-04-17 12:28 ` Michael Heerdegen
0 siblings, 0 replies; 5+ messages in thread
From: Michael Heerdegen @ 2014-04-17 12:28 UTC (permalink / raw)
To: help-gnu-emacs
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> > | (defun filter-list (pred list)
>
> There's cl-remove-if.
Indeed, thanks. I was overlooking it because it's only in a side note
in the cl manual.
Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: filter-list
2014-04-17 2:13 ` filter-list Grant Rettke
@ 2014-04-17 12:33 ` Michael Heerdegen
0 siblings, 0 replies; 5+ messages in thread
From: Michael Heerdegen @ 2014-04-17 12:33 UTC (permalink / raw)
To: help-gnu-emacs
Grant Rettke <gcr@wisdomandwonder.com> writes:
> https://github.com/magnars/dash.el#-filter-pred-list
Indeed a good source for diverse list processing functions.
Thanks,
Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
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