import re
print(len(re.findall('ANA', 'BANANA')))
This outputs 1, but I want to count matches using characters inclusively, so the output should be 2. Can this be done using re findall?
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no, you'll have to write code to change the anchor point iteratively. What you want are overlapping matches, but the methods of the `re` module only find non-overlapping matches. – President James K. Polk Nov 23 '16 at 01:13
1 Answers
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You cannot do that with the currently standard re module. However, as pointed out in other threads, you could use the newer regex module which offers an overlapped flag:
import regex
print(len(regex.findall('ANA', 'BANANA', overlapped=True)))
Information on regex module can be found here: https://pypi.python.org/pypi/regex
You will likely have to install it as:
pip install regex
The other threads mentioned: How to find overlapping matches with a regexp? and Python regex find all overlapping matches?
