Regular Expressions 101

Non-Capturing Group(?:(?:\s*<\s*(?!bar)\w+\s*>\s*)*(<\s*bar\s*>)){2}

{2}repeats the group contents below exactly 2 times:

Non-Capturing Group(?:\s*<\s*(?!bar)\w+\s*>\s*)*

*repeats the group contents below any number of times:

\s*any whitespace character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\s*any whitespace character, repeated any number of times

Negative Lookahead(?!bar)

barthe literal text bar (case sensitive)

\w+any word character, repeated at least once

\s*any whitespace character, repeated any number of times

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\s*any whitespace character, repeated any number of times

Group 1(<\s*bar\s*>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\s*any whitespace character, repeated any number of times

barthe literal text bar (case sensitive)

\s*any whitespace character, repeated any number of times

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

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

(?:(?:\s*<\s*(?!bar)\w+\s*>\s*)*(<\s*bar\s*>)){2}

Test String
New

< foo >< bar >< baz >
< foo >< bar >< baz >
< foo >< bar >< baz >

Substitution
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