in reply to Re^2: Parsing and translating Perl Regexes
in thread Parsing and translating Perl Regexes

What people name REGEX comes in 3 main dialects:

The above also have dialect/implementation variants.

And there are the different REGEX-notations used in other sciences like linguistics, which Friedl AFAIR does not include in his book.

Helmut Wollmersdorfer
  • Comment on Re^3: Parsing and translating Perl Regexes

In Section Seekers of Perl Wisdom