On Thu, Aug 17, 2006 at 01:11:00PM -0700, jerry gay wrote:
> On 8/17/06, Chip Salzenberg <[EMAIL PROTECTED]> wrote:
> > $S0 = default hsh['key'], ''
> >[...]
> > $P0 = new .Undef
> > $P1 = default hsh['key1'], $P0
> > $P1 = default hsh['key2'], $P0
> > ...
> >
> >It would work without the lookups too:
> >
> > $S0 = default $S0, '' # if $S0 is null, assign it ''
> >
> >what say?
> >
>
> default is ugly. err is sexy.
>
> ## if $S0 is null, assign it ''
> #pasm
> err $S0, ''
> err $S1, $S2, ''
>
> #pir
> $S0 //= ''
> $S0 = err ''
> $S0 = err $S1, ''
There might be a cognitive dissonance here with "err", since
C<err> in pasm/pir is testing for null, while C<err> in
perl6 tests for definedness. While it doesn't much matter
for strings in the examples above, it might make a difference for
$S0 = err hsh['key1'], 'foo'
Pm
