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Re: How to avoid expansion when completing?
- X-seq: zsh-users 3355
- From: Sven Wischnowsky <wischnow@xxxxxxxxxxxxxxxxxxxxxxx>
- To: zsh-users@xxxxxxxxxxxxxx
- Subject: Re: How to avoid expansion when completing?
- Date: Thu, 3 Aug 2000 12:51:52 +0200 (MET DST)
- In-reply-to: Peter Stephenson's message of Thu, 03 Aug 2000 10:19:05 +0100
- Mailing-list: contact zsh-users-help@xxxxxxxxxxxxxx; run by ezmlm
Peter Stephenson wrote:
> > Suppose I have a load of subdirectories, each of which contains a file
> > called foobar.dat. I enter
> > % wc **/foob<Tab>
> > hoping to expand this to **/foobar.dat (assuming there's nothing else
> > starting with 'foob' in any of the subdirectories). However, I get the
> > '**' expanded to the first subdirectory name which has a file starting
> > with 'foob' in it. (If I keep pressing <Tab> then I cycle round).
> > I've got the following options set, and I'm running version 3.1.5.
> If you don't mind upgrading, you can do such things with the new bindable
> completion widgets in 3.1.9 (maybe 3.1.6, but that's irrelevant if you're
> still on 3.1.5). Assuming the file is unique, you can use
> e.g. _most_recent_file (usually bound to ^xm), which would normally put a
> `*' on the end and find the most recently modified matching file --- that
> ought to be enough for this purpose.
> The following function is a trivial modification of that to add all
> matching files as possible completions (_glob_expand_and_complete).
> Sven probably has a better way of doing it.
Actually, no. I seem to remember Andrej the same question. And I seem
to remember me replying that this could get pretty expensive...
One could write a function that globs and lets one complete the last
pathname component. But it would then probably be easy to find cases
where it should complete the `intersting' part instead, which can be
hard (or even impossible) to identify with complex patterns. Especially
if the possible completions can have different numbers of components.
After thinking about this I gave up thinking about it at all.
It might be possible to add this to _match (together with _path_files;
for those not familiar with the new completion system: these are two
of its functions, _path_files completes filenames and _match offers
something like globcomplete, opnly more powerful). In fact, they
already handle completion of patterns a bit, but they don't try to
restore parts of the completion back to the original pattern, which
would be needed here.
Sven Wischnowsky wischnow@xxxxxxxxxxxxxxxxxxxxxxx
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