Python | Check if string matches regex list
Sometimes, while working with Python, we can have a problem we have list of regex and we need to check a particular string matches any of the available regex in list. Let’s discuss a way in which this task can be performed.
Method : Using join regex + loop + re.match()
This task can be performed using combination of above functions. In this, we create a new regex string by joining all the regex list and then match the string against it to check for match using match() with any of the element of regex list.
# Python3 code to demonstrate working of # Check if string matches regex list # Using join regex + loop + re.match() import re # initializing list test_list = ["gee*", "gf*", "df.*", "re"] # printing list print("The original list : " + str(test_list)) # initializing test_str test_str = "geeksforgeeks" # Check if string matches regex list # Using join regex + loop + re.match() temp = '(?:% s)' % '|'.join(test_list) res = Falseif re.match(temp, test_str): res = True # Printing result print("Does string match any of regex in list ? : " + str(res)) |
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Output :
The original list : ['gee*', 'gf*', 'df.*', 're'] Does string match any of regex in list ? : True
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