Regular Expressions 101

Group 1(\b\w{4,}\b)

\ban ASCII word boundary

\w{4,}any word character, repeated at least 4 times

\ban ASCII word boundary

Non-Capturing Group(?:.*?\1){4,}

{4,}repeats the group contents below at least 4 times:

.*?any character (except for line terminators), repeated any number of times

\1the text saved by group 1

Global pattern flags

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

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\b\w{4,}\b)(?:.*?\1){4,}

New

hello, bonjour bonjour, ceci est un test dans lequel bonjour est écrit cinq fois et test seulement quatre fois, bonjour test, bonjour test