Paul Eggert wrote:
> On 03/05/2012 02:27 PM, Bruno Haible wrote:
>
>> Then how about using "==" or ":=" to designate the assignment?
>
> That's too fancy. Plain '=' would be better.
>
> We can also support notations like '+700' and '-77' to
> OR-in or AND-out arbitrary masks. This would be
> a clear and straightforward extension to the
> existing symbolic modes.
>
> Something like the attached patches for gnulib and
> coreutils, perhaps? If this looks OK
> I'll add test cases.
I like it. Thanks!
I noted one typo:
...
> diff --git a/doc/perm.texi b/doc/perm.texi
...
> +@node Operator Numeric Modes
> +@section Operator Numeric Modes
> +
> +An operator numeric mode is a numeric mode that is prefixed by a
> +@samp{-}, @samp{+}, or @samp{=} operator, which has the same
> +interpretation as in symbolic modes. For example, @samp{+440} enables
> +read permission for the file's owner and group, @samp{-1} disables
> +execute permission for other users, and @samp{=600} clears all
> +permissions that it enables read-write permissions for the file's
s/that/then/
> +owner. Operator numeric modes can be combined with symbolic modes by
> +separating them with a comma; for example, @samp{=0,u+r} clears all
> +permissions except for enabling read permission for the file's owner.
