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  1. import re
  2.  
  3. strings = ["ggggg18-05-2018ggggg",
  4. "ggggg18-05-2018ggggg12345678",
  5. "ggggg18-05-18ggggg",
  6. "ggggg18-05-18ggggg12345678",
  7. "ggggg2018-05-18ggggg",
  8. "ggggg2018-05-18ggggg12345678",
  9. "ggggg18-05-123ggggg12345678"]
  10.  
  11. for str in strings:
  12. 	print(re.findall(r'(?<!\d)\d{2}-\d{2}-(?:\d{4}|\d{2})(?!\d)', str))
Success #stdin #stdout 0.01s 27800KB
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Standard input is empty
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['18-05-2018']
['18-05-2018']
['18-05-18']
['18-05-18']
[]
[]
[]
https://ideone.com/yXYRjl
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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