On Wed, Jan 5, 2022 at 1:53 PM Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> On Wed, Jan 05, 2022 at 02:46:10PM -0600, Eric W. Biederman wrote:
> >
> > Being in assembly it did not have anything after the name do_exit so it
> > hid from my regex "[^A-Za-z0-9_]do_exit[^A-Za-z0-9]". Thank you for
> > finding that.
>
> Umm... What's wrong with '\<do_exit\>'?
Christ people, you both make it so complicated.
If you want to search for 'do_exit', just do
git grep -w do_exit
where that '-w' does exactly that "word boundary" thing.
I thought everybody knew about this, because it's such a common thing
to do - checking my shell history, more than a third of my "git grep"
uses use '-w', exactly because it's very convenient for identifier
lookup
But yes, in more complex cases where you have other parts to the
pattern (ie you're not looking *just* for a single word), by all means
use '\<' and/or '\>'.
Linus
