If this is a run-once-only problem, trying using a tag as the input record separator is the way to go, and only if that fails with out-of-memory go to another approach.

One other way would be to pick a common character or string from the file that won't appear in any tag (or appears at the end of any tags it is in). For instance, ' ', '>', or 'the' might work, given appropriate data.

I just upvoted this node, and saw it reach zero.

For something obscene, rude, or wrong it may be reasonable to downvote. But if a node is as coherent, as the one this is a reply to, please explain your motives. It's really frustrating!

-nuffin
zz zZ Z Z #!perl

I don't get frustrated anymore. I just assume someone hit the wrong button by accident or is voting against me rather than the node.