Regular Expressions 101

Pro

\w*any word character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Group 1(.*(?:(?:R)|))

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

Non-Capturing Group(?:(?:R)|)

1st Alternative(?:R)

Non-Capturing Group(?:R)

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

2nd Alternative — matches an empty string

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

\w*<(.*(?:(?:R)|))>

New

aaa<123>
bbb<456;789>
ccc<aaa<123>;bbb<456;789>>
ccc<aaa<123>;bbb<456;ccc<aaa<123>;bbb<456;789>>>>

aaa<123>
bbb<456;789>
ccc<aaa<123>;bbb<456;789>>
ccc<aaa<123>;bbb<456;ccc<aaa<123>;bbb<456;789>>>>