I've got a pretty long regex to match an entry in a list I'm processing. The list should be one or more of these entries, comma-separated. Consider a regex:

([abc]+|[123]+)

for the entry. To match my comma-separated list, I'm matching against something like this:

([abc]+|[123]+)(,([abc]+|[123]+))*

(It looks especially foolish with my nasty regex instead of the short one I used here for the example)

I feel there must be a better way than having two copies of the entry -- once for the first entry, again for and follow comma/entry pairs.

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