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  1. import re
  2. text = "2-f becomes 2f, f-2 becomes f2"
  3. print( re.sub(r"(\d)-(\D)|(\D)-(\d)", r"\1\2\3\4", text) )
Success #stdin #stdout 0.03s 9616KB
comments (?)
stdin 
Standard input is empty
stdout 
2f becomes 2f, f2 becomes f2
https://ideone.com/hAR05S
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
secret

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