Recursive regular expressions in Python

[risu252]

I'm pretty sure you saw the explanation here:

https://stackoverflow.com/questions/2638...n-in-regex

I thought it was pretty good.

Hi!

Yes, I came across that at some point. However, what I don’t understand is why we need the closing bracket in the character group. Why can’t the regex be /{(?:[^{]|(?R)*)/}? Aren’t we starting a recursive call every time we encounter a closing bracket as well? Why is that desired? Shouldn’t we start a recursive call only when we find an opening bracket and expect it to be matched by the \} part of the regex? I can’t understand why the regex with the closing bracket in the character group does not lead to infinite recursion, since, when we encounter the closing bracket, we make a recursive call, and that closing bracket is not matched again, leading to a new recursive call and so on. What am I missing here?

Thanks a lot for replying.