I'm unclear about how alternation works in a regex. Say I want to find either "foo" or "bar" within a string. I don't care which one I match, only that I make a match. Would this be correct: /foo|bar/ Should they be grouped thusly: /(foo|bar)/ What about /(?:foo|bar)/ ? Specifically, I know that the second one remembers which one is found and the third one doesn't. But is the first example wrong? TIA richf
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