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  1. import re
  2.  
  3. s = "bar6387\nbar63287\nfoo1234\nfoohelloworld\nfooloremipsum\nbaz\nbar\nfoo236\nfoo5382\nbar\nfoo879"
  4. def f(m):
  5.     print(m.group().replace('\n', r'\n'))
  6.  
  7. re.sub(r'(?m)^foo.*(?:\nfoo.*)*', f, s)
Success #stdin #stdout 0.02s 9412KB
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stdin
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Standard input is empty
stdout
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foo1234\nfoohelloworld\nfooloremipsum
foo236\nfoo5382
foo879
https://ideone.com/MJQiZb
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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