fork download 
  1. import re
  2. p = re.compile(r'(?=((?:hello|you).*?(?:hello|you)))', re.IGNORECASE | re.DOTALL)
  3. test_str = "Hello how are you doing you have a nice day hello there"
  4. print(p.findall(test_str))
Success #stdin #stdout 0.01s 8968KB
comments (?)
stdin 
Standard input is empty
stdout 
['Hello how are you', 'you doing you', 'you have a nice day hello']
https://ideone.com/ajSIjU
language:
Python (cpython 2.7.16)
created:
10 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!