Why does this regex pattern not match?

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Greedy vs. Reluctant vs. Possessive Quantifiers 7 answers

Can someone explain Possessive Quantifiers to me? (Regular Expressions) 1 answer

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++ Matches between one and unlimited times, as many times as possible, without giving back - means, if you write .++ , it matches everything including the final b . So the additional b in your regex will never matched.

You could get around this, if you don't use possessive quantifiers or simply remove the b from the matching class [^b]++b - but I would suggest the first. Possessive quantifiers are almost everytime unneccessary.

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