On 9/26/12 10:07 PM, hans1wo...@gmail.com wrote:
> See also this thread: http://stackoverflow.com/questions/12596468/
>
> It looks like there is some bug in the pattern matcher
>
> $ shopt -s extglob
> $ touch a ab ba
> $ echo a*!(x)
>
> Expected result:
> a ab
> Experienced result:
> ab
The qu
> The question is whether or not !(x) should match the empty string. The
> bash matcher treats it similarly to [!x], which does not.
It does however match the empty string at most times. So I guess that's the
real bug. Again, there is some inconsistency in
$ echo *!(x)a # does match empty string
> $ echo a*!(x) # does not
> ba
Sorry, that should of course be
$ echo a*!(x) # does not
ab
