Re: collapsing number ranges

There are type-related implications: some people would say that since
) the values of $begin and $end are integers, you should process them as
) integers rather than pretending that they're strings.

You'd have to look to the schema for a declaration of their integral
nature, though, wouldn't you? So unless you're specifically typing (and
worrying about that later on) then they might as well be strings.