how to check whether a string A is contained into a longer string B for any combination of upper/lower character

Question

I'm looking for a function in Python that checks whether a string A is contained in a string B for any combination of upper/lower characters of both strings.

Example:

a = 'uaUa'
b = 'this is a longer string containing uaua'

checkString (a, b) returns True because a is contained in b.

A form of this question has been asked many times so I can going to vote to close it search for substring matching - I will note that a.lower() and b.lower() will help — PyNEwbie, May 19 '14 at 14:29
ups sorry. I made a quick search but I couldn't find anything. thanks! — DaniPaniz, May 19 '14 at 14:39

score 4 · Accepted Answer · answered May 19 '14 at 14:28

4

def checkString(a, b):
    return a.lower() in b.lower()

answered May 19 '14 at 14:28

endragor

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score 0 · Answer 2 · answered May 19 '14 at 14:30

0

Try https://docs.python.org/2/library/re.html#re.search

>>> import re
>>> a = 'uaUa' 
>>> b = 'this is a longer string containing uaua'
>>> print bool( re.search(a, b, re.IGNORECASE) )
True

answered May 19 '14 at 14:30

Nick

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why use regular expressions for something this simple? – loopbackbee May 19 '14 at 14:31
actually I thought about using reg expressions but I didn't know the function bool() and IGNORECASE. superquick! thanks :) – DaniPaniz May 19 '14 at 14:35
Glad it was helpful. Happy parsing! – Nick May 19 '14 at 14:37

score 0 · Answer 3 · answered May 19 '14 at 14:32

0

You could just convert both strings to lowercase (for instance) with the ".lower()" method, and then use the standard find methods of Python's string functionalities.

answered May 19 '14 at 14:32

MultiVAC

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how to check whether a string A is contained into a longer string B for any combination of upper/lower character

3 Answers3