meik.michalke at uni-duesseldorf.de
Wed May 16 21:45:36 UTC 2018
Am Mittwoch, 16. Mai 2018, 21:08:02 CEST schrieb Thomas Friedrichsmeier:
> On Wed, 16 May 2018 17:12:58 +0200
> meik michalke <meik.michalke at uni-duesseldorf.de> wrote:
> > that's an even better idea. i've pushed something for testing, i just
> > called the new function rk.askYesNo() and modelled its arguments
> > after askYesNo().
> nice! Seems to work just fine. So with this, we can just do
> options("askYesNo"=rk.askYesNo), and that's it, right?
after some initial checks i'm afraid it's not so easy after all. there's some
small issues like we'd have to rename the "message" argument into "msg"
because askYesNo() is hardcoded to call the function with "msg = msg".
but the more complex thing is handling the "prompts" argument in a sane way.
the thing is, if a user doesn't want to use "yes", "no" and "cancel", he will
set "prompts" accordingly, thus removing the default getOption("askYesNo")
from the askYesNo() call, which will effectively circumvent the use of
rk.askYesNo() and alternatively pop up a text input window.
to also cover those cases, i guess we'll have to mask askYesNo() completely
with our own function and have it also handle the set options accordingly. it
is a relatively trivial function, so i'd not expect huge surprises here. our
function could check if "prompts" is a function and call utils::askYesNo()
with it if that's a positive -- that would again produce the text input popup,
but we'll not be able to take care of custom functions here, will we.
shall i proceed?
> I suppose we may want to add a "..." parameter in front of caption,
> just to be on the safe side, in case askYesNo() gains further parameters
> in the future.
true, and if we're to replace the function with our own, we'll have to include
> Could you also document the return value, explicitly, and mention that
> buttons can be hidden by supplying "" as their label?
viele grüße :: m.eik
dipl. psych. meik michalke
institut f"ur experimentelle psychologie
abt. f"ur diagnostik und differentielle psychologie
heinrich-heine-universit"at d-40204 d"usseldorf
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