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points by luhn 15 hours ago | 0 comments

What's the difference between regex and regular expression? I always understood the former to be an abbreviation for the latter.

It is but what they mean is that many implementations (e.g. PCRE) are not actually regular languages, they're more powerful: https://www.npopov.com/2012/06/15/The-true-power-of-regular-...