If you want to use lots of whiles in a code, define a sub. For example (untested): 

sub w (\&@) { while (&{$_[0]}()) { &{$_[1]}() } } 
sub d (\&) { $_[0]; }
# then, instead of while (foo) { bar }, you can say
w{foo}d{bar};

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or, like 
sub l(\&) { WHILE: while(1) { &{$_[0]}(); } }
sub w($) { $_[0] or last WHILE }
# then, instead of while (foo) { bar },
l{w foo;bar};

[download]

In reply to Re: Golf Question - Shortest way to write while inside while by ambrus
in thread Golf Question - Shortest way to write while inside while by o0lit3

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