[Rd] paste(character(0), collapse="", recycle0=FALSE) should be ""

[Hervé Pagès]

Excellent! Thanks Martin.

H.

On 5/28/20 00:39, Martin Maechler wrote:
>>>>>> Martin Maechler
>>>>>>      on Wed, 27 May 2020 13:35:44 +0200 writes:
> 
>>>>>> Hervé Pagès
>>>>>>      on Tue, 26 May 2020 12:38:13 -0700 writes:
> 
>      >> Hi Martin, On 5/26/20 06:24, Martin Maechler wrote: ...
>      >>>
>      >>> What about remaining back-compatible, not only to R 3.y.z
>      >>> with default recycle0=FALSE, but also to R 4.0.0 with
>      >>> recycle0=TRUE
> 
>      >> What back-compatibility with R 4.0.0 are we talking about?
>      >> The 'recycle0' arg was added **after** the R 4.0.0 release
>      >> and has never been part of an official release yet.
> 
>      > Yes, of course.  It was *planned* for R 4.0.0 and finally was
>      > too late (feature freeze etc)... I'm sorry I was wrong and
>      > misleading above.
> 
>      >> This is the time to fix it.
> 
>      > Well, R 4.0.1 is already in 'beta' and does contain it too.
>      > So the "fix" should happen really really fast, or we (R core)
>      > take it out from there entirely.
> 
> Well, in the end your repeated good reasoning has prevailed:
> I've committed a change (to R-devel; most probably in
> time to be ported to 4.0.1 beta).
> I think this implements the   recycle0 = TRUE   behavior you
> have been advocating for,
> in svn r78591  (2020-05-27 19:45:07 +0200)   with message
> 
>       paste(), paste0(): collapse=<string> always gives a string
>       (also w/ `recycle0=TRUE`)
> 
> Best regards,
> Martin
> 

-- 
Hervé Pagès

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