I cannot say definitively what's going on, however two conceivably possible explanations could be:

Possible alternatives include reducing the latter for loop:

for my $h (@out) {
    &analyze($htree->append("$h$hist\n$k"),$rul) unless ($hist =~ /\|$
+h\|/);
}

[download]

If that works, it would seem to confirm that it is a bug.

UPDATE: Looking at the provided code again, it would appear that it was provided in its entirety and that the comments were merely comments. However your reference to next as opposed to last still applies.

In reply to Re: Iterator Problem with recursion by eibwen
in thread Iterator Problem with recursion by PetaMem

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