How can I get the "!" as an item on this split list?

user_19418720 0
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This is my first question!

What should the pattern be in order to make the last "!" appear as an item on this split list?

    import re
    re.split(r'([.?!]) ', 'One sentence. Another one? And the last one!')

I get: ['One sentence', '.', 'Another one', '?', 'And the last one!'], or ['One sentence', '.', 'Another one', '?', 'And the last one', '!', ''] if I use ([.?!]) ?. But I'd like to get this list: ['One sentence', '.', 'Another one', '?', 'And the last one', '!']

Thank you!

python split regex
1 Answers

You can split using the following regex:

(?=[\.?!])|(?<=[\.?!] )

which will match

  • (?=[\.?!]): any place which is followed by a punctuation character
  • (?<=[\.?!] ): any place which comes after a punctuation character + space

Check the demo here.

Another option is to use a matching operation on all the strings and all the punctuation symbols:

[^\.?!]+(?=[\.?!])|[\.?!]

This will match two patterns:

  • [^\.?!]+(?=[\.?!]): any string [^\.?!]+, followed by a punctuation symbol (?=[\.?!])
  • [\.?!]: the punctuation symbol

Check the demo here.

user_124928900
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