On Fri, Apr 12, 2002 at 09:26:45AM +0100, Piers Cawley wrote:
> Trey Harris <[EMAIL PROTECTED]> writes:
>
> > I think I've missed something, even after poring over the archives for
> > some hours looking for the answer. How does one write defaulting
> > subroutines a la builtins like print() and chomp()? Assume the code:
> >
> > for <> {
> > printRec;
> > }
> > printRec "Done!";
> >
> > sub printRec {
> > chomp;
> > print ":$_:\n";
> > }
>
> You could take advantage of subroutine signatures and multi-dispatch
>
> sub printRec() { printRec($_) } # No args, therefore no new topic.
> sub printRec($rec) { .chomp; print ":$rec:\n" } # 1 arg
Hm, I wonder if
sub printRec($rec=$_) { ... }
or someother way to specify that the current topic be used
as a default argument, might be possible
Graham.
