ehm ... he's using goto as loop control, last, next and redo are not much different.
Than you don't print the $msg before first run like he did.
Considering "cleanest" and "DRYest" flow control , I'd rather try this
> perl
$max_length=5;
OUTER: {
print "Input max is $max_length!!!\n";
while (1) {
chomp( $input = <STDIN> );
last OUTER
if lc( $input ) eq "end";
redo OUTER
if length( $input ) > $max_length;
print "- $input is OK\n";
}
}
__END__
Input max is 5!!!
1
- 1 is OK
12345
- 12345 is OK
123456
Input max is 5!!!
123
- 123 is OK
end
>
YMMV! :)
update
please note that the more verbose
OUTER:
while(1) {
...
works equally well and might be less surprising for some maintainers. :)
Cheers Rolf
(addicted to the Perl Programming Language)
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