Re: :buffer command, #, $

On Oct 25, 2013 12:24 AM, "Tim Chase" <vim@tim.thechases.com> wrote:
>
> On 2013-10-24 16:15, David Fishburn wrote:
> > :$b
> > E86: Buffer 48 does not exist
> [snip output of :ls]
> > Strange how 48 came along.
>
> Could it be possible that you've opened 48 buffers, but closed/wiped
> some since starting Vim?  Though based on your next example, were you
> on line 48 when you issued that?
>
> > httpd.conf" 691 lines --91%--
> > :$b
> > E86: Buffer 691 does not exist
>
> This one does seem suspect/buggy to me.

It is not. Every command prefix like this is always a range. The fact that some commands hide this does not make :3b not refer to (possibly inexistent) line 3. Implementation detail leaked to userspace, like NL-used-for-Nul.

>
> > :#b
> > E488: Trailing characters
>
> This one makes sense, since "#" is an Ex command to number the
> current line, which I regularly use as ":g/pattern/#" to number the
> lines matching a pattern.  So it doesn't expect anything after that.
> I think you're reaching for
>
>   :b#
>
> > :^b
> > E492: Not an editor command: ^b
>
> This one makes sense to me too, at least as an omission, as Vim sees
> the "^" and doesn't recognize it as a command or valid range, so the
> E492 lets you know what it thinks is wrong.  Not having meaning, it
> *could* be overloaded in this context to mean something like ":0b"
> but I'm not sure that has much value as you already have ":0b"
>
> > Just a simple question, does it make sense to expect the usual
> > buffer arguments to work for :buffer?
>
> maybe :-)
>
> -tim
>
>
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