You seem to be asking for a fairly specific answer to a very general question. The context for the code could make a great deal of difference to what constitutes a good solution.
For example, if the while loop is in a sub and you simply want to bail when an error is encountered you could return or die within the loop. That sends a very clear message that an unusual condition is being handled. You could use eval for a block you can return from to achieve the same effect without using a sub. In some situations that may be a clean concise solution. Consider:
#!/usr/bin/perl
use strict;
use warnings;
my @items = qw(ok fine great bail);
eval {
while (@items) {
return if $items[0] eq 'bail';
print shift(@items), "\n";
}
print "No bail items found today\n";
return 1;
} or print "Bailed early\n";
Prints:
ok
fine
great
Bailed early
True laziness is hard work
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