I need a regexp that will find improperly nested brackets, not properly. For example:
()(( — matches regexp
(()) - doesn't match regexp
))((( — matches regexp
etc.
Asked
Active
Viewed 70 times
0
-
Regular expressions are not appropriate for this, unless you have a regexp engine that supports recursion. – Barmar Apr 24 '20 at 16:57
-
@Barmar I guess the author of the question uses QRegExp. – USERNAME GOES HERE Apr 24 '20 at 17:01
-
@Barmar see eyllanesc's edit. – USERNAME GOES HERE Apr 24 '20 at 17:01
-
1@VictorVosMottorthanksMonica I guess they're using Python's `re` module, which doesn't support recursion. [this website](http://rachbelaid.com/recursive-regular-experession/) mentions that you can install a PCRE library that does, and then shows how to use it to detect balanced parentheses. – Barmar Apr 24 '20 at 17:03
-
@Barmar I use `QTextCharFormat.regexp_by_format()`. – Victor Apr 24 '20 at 17:06
-
1OK, that apparently uses PCRE, so you should be able to use the solution at the website in my link. – Barmar Apr 24 '20 at 17:09