Advice on how to write
took the root "aero", but
with the exception of "aerosol", "aerob"?
(aero) -- Finds the group of a character in a given order.
[^aerosol]|[^aerob] - Excludes words containing combinations of letters "aerosol", "aerob"?
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Yaroslav
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Negative lookahead? https://www.regular-expressions.info/lookaround.html – Nick ODell May 27 '23 at 00:38
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What about `"aerobatics"` (as opposed to `"aerob"`)? – Cary Swoveland May 27 '23 at 03:09
1 Answers
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I think you're looking for a negative lookahead, which is a way of making sure that certain characters aren't found after a match -- in your case, you want aero but not aero-sol or aero-b (dash just used for affect). Here would be an example:
David542
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1You don't need the non-capture group. `^aero(?!sol|b)\w*$` is sufficient (as I'm sure you know). IMO it would be clearer to write, "...but not aerosol or aerob...". – Cary Swoveland May 27 '23 at 08:12