> This conversation would be a lot clearer with a distinction between "regexes" and "regular languages". This is often an important distinction, but the point

> This conversation would be a lot clearer with a distinction between "regexes" and "regular languages". This is often an important distinction, but the point of the article is that the Stackoverflow question does not require recursion or any other non-standard regex features, and therefore can be solved using a vanilla regular expression. So in this particular question the distinction is not important.