On Thu, 17 Feb 2011, Spencer E. Olson wrote:
> We are not actually using the yes utility (think y\ny\ny\ny\ny\ny\n...)
>
> As far as I understand, in this particular use, "yes" and "no" are just
> comments. We could also write
> : I like banannas ;;
> and
> ! : I do not like anchovies ;;
Ah, I'm sure you're right. Need to read up on that colon operator. Thanks.
>
> On Thursday 17 February 2011 17:34, Martin von Zweigbergk wrote:
> > On Thu, 17 Feb 2011, Johannes Sixt wrote:
> > > Am 2/16/2011 20:51, schrieb Junio C Hamano:
> > > > Here is how to write the above more concisely, efficiently and
> > > > portably.
> > > >
> > > > case "$2;" in
> > > > *";$1;"*)
> > > > echo yes ;;
> > > > *)
> > > > echo no ;;
> > > > esac
> > > >
> > > > The trailing ';' takes care of the case where cloned_modules has only
> > > > one element, in which case you have ";name" in "$2". No need for a
> > > > loop.
> > >
> > > And while you are here, you could make this:
> > >
> > > list_contains()
> > > {
> > > case "$2;" in
> > > *";$1;"*)
> > >
> > > : yes ;;
> > >
> > > *)
> > > ! : no ;;
> > > esac
> > > }
> > >
> > > and test for the exit code of this function rather than its output at the
> > > call site.
> >
> > According to Brandon Casey: "Some platforms (IRIX 6.5, Solaris 7) do
> > not provide the 'yes' utility." See 8648732 (t/test-lib.sh: provide a
> > shell implementation of the 'yes' utility, 2009-08-28).
> >
> >
> > /Martin
>
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