[Rd] Autocompletion for the new S3 generic @ method?

Deepayan Sarkar deep@y@n@@@rk@r @end|ng |rom gm@||@com
Mon Apr 3 06:07:09 CEST 2023


Thanks, we are discussing the details, but we will definitely add
something along those lines before 4.3.0 is released.

Best,
-Deepayan

On Sun, Apr 2, 2023 at 6:39 PM Tomasz Kalinowski <kalinowskit using gmail.com> wrote:
>
> I agree, this is a good idea and would be very helpful in interactive contexts.
>
> I have a draft patch implementing this feature here: https://github.com/r-devel/r-svn/pull/122
> (Append  “.patch” to the URL to get a raw patch.)
>
> Regards,
> Tomasz
>
> > On Mar 31, 2023, at 2:11 PM, Karolis K <karolis.koncevicius using gmail.com> wrote:
> >
> > Hello,
> >
> > In the current R-devel @ is S3 generic, so we can do things like - for example - use it to extract matrix rows by name:
> >
> >    .S3method("@", "mm", function(object, name) object[name,])
> >    m <- structure(matrix(rnorm(20), ncol=2), dimnames=list(paste0("row", 1:10), paste("col", 1:2)), class="mm")
> >
> >    m using row1
> >
> > However, seems like currently it does not support autocompletion.
> >
> > Wouldn’t it make sense to add a method like .EtaNames() which would provide tab autocompletions for x@<tab> in the same way current .DollarNames() does for x$<tab>?
> >
> > Regards,
> > Karolis K.
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>
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