Ir is never too late to point out a mistake. :-)

/foo|(bar)?|rat/ is not logically equivalent to /(foo|bar|rat)?/. They both match every possible string, but they will put different things in $1 and $&.

In reply to Re: Why machine-generated solutions will never cease to amaze me by tilly
in thread Why machine-generated solutions will never cease to amaze me by grinder

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