Case insensitive regular expression without re.compile? Case insensitive regular expression without re.compile? python python

Case insensitive regular expression without re.compile?


Pass re.IGNORECASE to the flags param of search, match, or sub:

re.search('test', 'TeSt', re.IGNORECASE)re.match('test', 'TeSt', re.IGNORECASE)re.sub('test', 'xxxx', 'Testing', flags=re.IGNORECASE)


You can also perform case insensitive searches using search/match without the IGNORECASE flag (tested in Python 2.7.3):

re.search(r'(?i)test', 'TeSt').group()    ## returns 'TeSt're.match(r'(?i)test', 'TeSt').group()     ## returns 'TeSt'


The case-insensitive marker, (?i) can be incorporated directly into the regex pattern:

>>> import re>>> s = 'This is one Test, another TEST, and another test.'>>> re.findall('(?i)test', s)['Test', 'TEST', 'test']


matomo