Ah, so there is a use for the for which is like foreach other than a shortcut. Can I do that with foreach? I see that what you are describing with the foreach loops above is what was going on with my nested foreach loops before.
I believe this is the remaining source of your confusion and I bet I can make it go away by explaining one simple fact: Perl allows the words for and foreach to be used interchangeably, they mean exactly the same thing. That help?
next() jumps to the next iteration of the targetloop, or the enclosing loop, by default. Consider this example:
foreach (1..10) { next if $_ % 2; # skip to the next number, if this one is odd print "$_\n"; # this prints just even numbers }
That is helpful. Though why would you want to use next? Is is just another way to do something?
It could be sure. There's generally more than one way to do things, especially in Perl. In the above example, you could just put the print() call inside a conditional. However, there are times when doing something without next() would be a lot more work. My nested for loops to find prime numbers is probably a decent example of that.
Hope that helps.
James
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