fork download 
  1. import re
  2. teststr= 'chapter 1 Here is a block of text from chapter one.  chapter 2 Here is another block of text from the second chapter.  chapter 3 Here is the third and final block of text.'
  3. print( re.split(r'(?!^)(?=chapter \d)', teststr) )
Success #stdin #stdout 0.02s 9504KB
comments (?)
stdin 
Standard input is empty
stdout 
['chapter 1 Here is a block of text from chapter one.  ', 'chapter 2 Here is another block of text from the second chapter.  ', 'chapter 3 Here is the third and final block of text.']
https://ideone.com/AEW6vn
language:
Python 3 (python  3.12)
created:
5 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!