Re: ":b {bufname}" tab-completion uses whole filepath

On Fr, 14 Jun 2024, Enan Ajmain wrote:

> On Fri, 14 Jun 2024 22:52:10 +0200
> Christian Brabandt <[email protected]> wrote:
> > 
> > You could try the following mapping:
> > 
> > :cnoremap <expr> B getcmdtype()==#':'&&getcmdpos()==1?'b */':'B'
> > 
> > And then type :B which would expand to :b */ on the commandline and then 
> > whatever you type would be anchored to the directory separator.
> 
> I think the cnoremap only maps 'B' to expand to "b */" if it's at the
> start of the commandline.  But what's "b */" supposed to do?  I added
> this mapping and then typed "deep" (so the whole commandline became "b
> */deep" and then pressed tab.  It didn't do anything.  No completion.

Ah Windows, I didn't think about it. So unless you use shellslash, 
you'll need to change the mapping to use a backslash instead:

:cnoremap <expr> B getcmdtype()==#':'&&getcmdpos()==1?'b *\':'B'

> Could you explain the logic behind "anchored to the directory
> separator"?

The idea is, that you want everything that you typed to be matched after 
a directory separator. So instead of :b deeplog<tab> which presents you 
with 3 different files, anchor the pattern to the directory separator: 
\deeplog.py which Vim shall then only complete if it matches the 
directory separator followed by whatever you enter.

> Note that I also tried "b *\" and "b *\\" since I'm in Windows.

Try if :b *\<pattern><tab> works for you.


Thanks,
Christian
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