Re: Excluding autocommands for files matching an exclusion pattern

Hi Tony,

Reading :h <amatch>, I'm unable to tell whether <amatch> would be the basename or the full pathname of the matched file. Could you say?

Thanks

On Thu, Oct 15, 2015 at 1:29 AM, Tony Mechelynck <antoine.mechelynck@gmail.com> wrote:

 On Thu, Oct 15, 2015 at 7:27 AM, Tony Mechelynck
<antoine.mechelynck@gmail.com> wrote:
> On Thu, Oct 15, 2015 at 4:30 AM,  <vmlvws@gmail.com> wrote:
>> Hi all,
>>
>> I have right now an autocommand, au BufWritePost *.foo :run_cmd.
>>
>> I want it to run upon writing all files matching *.foo, but not any files matching bar.*, or more equivalently bar.*.foo.
>>
>> How can I disable the autocommand for files starting with bar? The full path of an ideally excluded file may be /tmp/dir/bar.qux.foo, while /tmp/dir/qux.foo should be included
>>
>> Thanks, everyone!
>
> Simple (but sometimes when it's too simple we don't think of it)
>
> :au BufWritePost *

oops —the above should of course have been :au BufWritePost *.foo

>     \ if <amatch> !~ '^bar\.' | RunCmd | endif
>
> see
>     :h <amatch>
>     :h expr-!~
>     :h line-continuation
>
> Notes:
>   1. !~ takes a full-fledged Vim pattern as in the / :s :g etc.
> commands, not a shell-like "glob pattern". So the ^ (spacing
> circumflex) matches zero characters at the beginning of the string,
> and the \. (slash-dot) matches an actual dot. Any match starting with
> "bar." will thus take the (empty) false path of the :if — and do
> nothing.
>   2. The use of line continuation assumes that you're running Vim in
> 'nocompatible' mode, or at least without the C flag in 'cpoptions'.
>   3. You cannot define a user command named :run_cmd but you can
> define one named :RunCmd (every user-command name must start with an
> uppercase letter).
>
>
> Best regards,
> Tony.

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