On Wed, Nov 19, 2008 at 07:32:34PM +0100, martin f krafft wrote:
> also sprach Petr Baudis <pasky@xxxxxxx> [2008.11.19.1924 +0100]:
> > > +args_saved="$@"
> > > +while [ -n "$1" ]; do
> > > + case "$1" in
> > > + help|--help|-h)
> > > + shift
> > > + do_help "$1"
> > > + exit 1;;
> > > + esac
> > > + shift
> > > +done
> > > +set -- $args_saved
> > > +unset args_saved
> > >
> > > ## Initial setup
> >
> > Huh, why do you actually need $args_saved at all? :-) This is bound to
> > do horrible things with space-containing arguments etc., I think. You
> > don't need to do the outer shift and then drop $args_saved altogether,
> > no?
>
> I figured I need to restore $@ for others to consume, e.g. when you
> check for -r later.
>
> The challenge is to identify help|--help|-h anywhere on the command
> line. Thus, you need to iterate, or do some weird matching against
> $*.
>
> When you iterate in a for loop, it's not easy to get at the next
> argument, except if you use a state machine. I wanted to avoid that.
Oh, oops - I missed the loop, I should get some lunch. ;-)
Thus, something like this?
check_help() { while [ -n "$1" ]; do ...; shift; done }
check_help "$@"
--
Petr "Pasky" Baudis
People who take cold baths never have rheumatism, but they have
cold baths.
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