Regex nested parenthesis in python

Question

I have something like this:

Othername California (2000) (T) (S) (ok) {state (#2.1)}

Is there a regex code to obtain:

Other         


        

Answer 1

Try this one:

import re

thestr = 'Othername California (2000) (T) (S) (ok) {state (#2.1)}'

regex = r'''
    ([^(]*)             # match anything but a (
    \                   # a space
    (?:                 # non capturing parentheses
        \([^(]*\)       # parentheses
        \               # a space
    ){3}                # three times
    \(([^(]*)\)         # capture fourth parentheses contents
    \                   # a space
    {                   # opening {
        [^}]*           # anything but }
        \(\#            # opening ( followed by #
            ([^)]*)     # match anything but )
        \)              # closing )
    }                   # closing }
'''

match = re.match(regex, thestr, re.X)

print match.groups()

Output:

('Othername California', 'ok', '2.1')

And here's the compressed version:

import re

thestr = 'Othername California (2000) (T) (S) (ok) {state (#2.1)}'
regex = r'([^(]*) (?:\([^(]*\) ){3}\(([^(]*)\) {[^}]*\(\#([^)]*)\)}'
match = re.match(regex, thestr)

print match.groups()