I want a regular expression, which returns only digits, which are within a word, but I can only find expressions, which returns all digits in a string.
I’ve used this example:
text = 'I need this number inside my wor5d, but also this word3 and this 4word, but not this 1 and not this 555.'
The following code returns all digits, but I am only interested in [‘5’, ‘3’, ‘4’]
import re print(re.findall(r'\d+', text))
Any suggestions?
>Solution :
You can use
re.findall(r'(?<=[a-zA-Z])\d+|\d+(?=[a-zA-Z])', text)
This regex will extract all one or more digit chunks that are immediately preceded or followed with an ASCII letter.
A fully Unicode version for Python re would look like
(?<=[^\W\d_])\d+|\d+(?=[^\W\d_])
where [^\W\d_] matches any Unicode letter.
See the regex demo for reference.