I’m not at all the first person to make a distinction between “regex” and “regular expression”. (First result on google for “regex vs regular expression”) http

I’m not at all the first person to make a distinction between “regex” and “regular expression”. (First result on google for “regex vs regular expression”) https://www.rexegg.com/regex-vs-regular-expression.html https://www.rexegg.com/regex-vs-regular-expression.html > Perl had a huge influence on the flavors of regular expressions used in most modern engines today. This is why modern regular expressions are often called Perl-style. The differences in features across regex engines are considerable, so in my view speaking of Perl-style regular expressions only makes sense when one wants to make it clear one is not talking about the ivory tower brand of mathematically-correct expressions. > But if you really want to avoid ambiguity, just say regex, as that is one word that white-coat computer scientists are not claiming.