regex101: Python Match Workspace

Explanation

Pro

Pet Owner : the literal text Pet Owner : (case sensitive)

Group 1(\w+)

\w+a Unicode word character, repeated at least once

Non-Capturing Group(?:(?!Pet Owner :).)*

*repeats the group contents below any number of times:

Negative Lookahead(?!Pet Owner :)

Pet Owner :the literal text Pet Owner : (case sensitive)

.any Unicode character

Pet Type : the literal text Pet Type : (case sensitive)

Group 2(\w+)

\w+a Unicode word character, repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

s modifier: single line. Allows a dot to match line terminators

Quick Reference

25 tokens

Regular Expression

Pet Owner : (\w+)(?:(?!Pet Owner :).)*Pet Type : (\w+)

New

Pet Owner : Sophia
    Colour : Blue
    Pet Type : Cat
    From : India
    Price : High

Pet Owner : Bruce
    Not own pet

Pet Owner : Sean
    Not own pet

Pet Owner : Julia
    Colour : Yellow
    Pet Type : Bird
    From : Israel
    Price : Low

Pet Owner : Bean
    Not own pet

Pet Owner : Max
    Colour : Green
    Pet Type : Dog
    From : Italy
    Price : Normal

Pet Owner : Clarie
    Not own pet

Substitution

Pet Owner : Sophia
    Colour : Blue
    Pet Type : Cat
    From : India
    Price : High

Pet Owner : Bruce
    Not own pet

Pet Owner : Sean
    Not own pet

Pet Owner : Julia
    Colour : Yellow
    Pet Type : Bird
    From : Israel
    Price : Low

Pet Owner : Bean
    Not own pet

Pet Owner : Max
    Colour : Green
    Pet Type : Dog
    From : Italy
    Price : Normal

Pet Owner : Clarie
    Not own pet