Ingo Karkat wrote:
> On 20-Dec-2010 23:26, Christian Brabandt wrote:
> > Hi Bram,
> > when working with csv-files, I have often wished for more than 10
> > capturing groups. So here is a patch, that allows 99 capturing groups in
> > the replacement part. This uses the perl-like syntax ${1} until ${99}
> > for the capturing groups in the replacement part. If there does not
> > exist a capturing group, this will resolve to the empty string.
> >
> > I have tested it locally and it works for me[1]. This obviously needs to
> > be very well tested, before included.
> >
> > [1] running make test as well as trying several different :s commands.
> >
> > regards,
> > Christian
>
> I don't like the fact that this introduces another character / substring that
> needs to be escaped in the replacement text, thus breaking backward
> compatibility and making scripting more difficult. So far, only "\"
> (and "&" and
> "~" depending on 'magic', cp. :help sub-replace-special) need to be escaped.
>
> Since that many capturing groups are rarely used (but I agree, could sometimes
> be useful), how about just making them available through submatch({nr}), as
> in:
> :s/{pat}/\=submatch(99)/
>
> This would keep compatibility. Alternatively, couldn't something
> starting with a backslash be used, for example \{99}?
That's already used. We could use \%99g, where "g" stands for group.
--
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/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
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