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  1. import re
  2.  
  3. s = ("(2021-07-02 01:00:00 AM BST)  \n"
  4.      "---  \n"
  5.      "syl.hs has joined the conversation  \n"
  6.      "  \n"
  7.      "  \n\n"
  8.      "(2021-07-02 01:00:23 AM BST)  \n"
  9.      "---  \n"
  10.      "e.wang  \n"
  11.      "Good Morning\n"
  12.      "How're you?\n"
  13.      "  \n"
  14.      "  \n"
  15.      "  \n\n"
  16.      "(2021-07-02 01:05:11 AM BST)  \n"
  17.      "---  \n"
  18.      "wk.wang  \n"
  19.      "Hi, I'm Good.  \n"
  20.      "  \n"
  21.      "  \n\n"
  22.      "(2021-07-02 01:08:01 AM BST)  \n"
  23.      "---  \n"
  24.      "perter.derrek   \n"
  25.      "we got the update on work. \n"
  26.      "It will get complete by next week.\n\n"
  27.      "(2021-07-15 08:59:41 PM BST)  \n"
  28.      "---  \n"
  29.      "ad.ft has left the conversation  \n"
  30.      "  \n"
  31.      "  \n"
  32.      "  \n"
  33.      "  \n"
  34.      "---  \n"
  35.      "  \n"
  36.      "* * *\"")
  37.  
  38. pattern = r"^---\s*\n(?!.* has (?:joined|left) the conversation|\* \* \*)\S.*((?:\n(?!\(\d|---).*)*)"
  39. result = [m.strip() for m in re.findall(pattern, s, re.M) if m]
  40. print(result)
  41.  
  42.  
Success #stdin #stdout 0.02s 9556KB
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Standard input is empty
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["Good Morning\nHow're you?", "Hi, I'm Good.", 'we got the update on work. \nIt will get complete by next week.']
https://ideone.com/ItgVUV
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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