Re: Deprecation of egrep

[Peter Stephenson <p.w.stephenson@xxxxxxxxxxxx>]

> On 12/09/2022 11:15 Jun T <takimoto-j@xxxxxxxxxxxxxxxxx> wrote:
> If we are going to patch each file that uses egrep, we can use
> zsh pattern matching in each of them; for example:
> 
> diff --git a/Test/D07multibyte.ztst b/Test/D07multibyte.ztst
> index e2e9a25ef..cde3f2b81 100644
> --- a/Test/D07multibyte.ztst
> +++ b/Test/D07multibyte.ztst
> @@ -6,7 +6,7 @@
>    unset -m LC_\*
>    mb_ok=
>    langs=(en_{US,GB}.{UTF-,utf}8 en.UTF-8
> -	 $(locale -a 2>/dev/null | egrep 'utf8|UTF-8'))
> +	 ${(M)$(locale -a 2>/dev/null):#*.(utf8|UTF-8)} )
>    for LANG in $langs; do
>      if [[ é = ? ]]; then
>        mb_ok=1
> 
> I don't know which is better.

I tend to agree with Bart that a change like the above is probably best
in the long run.  Directly using zsh's own features inline would be
clearer (given the core audience here is zsh experts anyway).

pws