I don't want 'return' to have any meaning other than returning from a
subroutine, nor do I want the word 'goto' to appear in my code except for
goto &sub.
How about we just allow last, redo, next to take another argument, which
provides the final or intermediate value of a block whose value is being
used? First argument can be undef for nearest enclosing block. Yes, it
looks a little weird, but this is a relatively uncommon thing to want to do
and not worth IMHO creating a new keyword for, so why shouldn't it look
weird. Hence:
$foo = do { last undef, $bar if baz($bar) } while $bar++;
@list = grep { last undef, '' if /sentinel/; baz($_) } @thingies;
@list = grep { next undef, 'okay' if /sentinel/; baz($_) } @thingies;
etc. I'm assuming that one would want to retain the capability to last,
next etc out of an outer enclosing labelled loop, otherwise I'd just
propose overloading the one argument and say that if it's a reference, take
the thing it refers to as the value and exit/continue the nearest enclosing
loop.
--
Peter Scott
Pacific Systems Design Technologies
