Doing text processing in Python, trying to match <brackets> in the output. The inside can contain any character, but if there are numbers the brackets shall not match if there is more than 1 single digit number. For instance...
< 1? >
<12>
<hot 198663 , ? ... @ key \n 6>
...shall↑match, while...
<0 0>
<9653, 8 test 6>
<18str 500 ing 4. 3 – 6>
...shall↑not.
I have tried with something like <(?:\d{1}|\d{2,}|[^\d])>, but it doesn’t really do it.
You may use a general pattern like <[^>]*> and restrict it with a (?!(?:[^>]*\b\d\b){2}) negative lookahead:
r'<(?!(?:[^>]*\b\d\b){2})[^>]*>'
See the regex demo
Details
< - a <(?!(?:[^>]*\b\d\b){2}) - a negative lookahead that fails the match if exactly 2 occurrences of the following sequence is matched immediately to the right of the current location:
[^>]* - any 0+ chars other than >\b\d\b - a 1-digit "whole word"[^>]* - any 0+ chars other than >> - a >
