Regular Expressions 101

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\w+any word character, repeated at least once

Negated Character Class[^>]*?

*?matches any number of characters outside the set below:

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Group 1((?R)|[^<]+)*

*repeats the group contents below any number of times:

1st Alternative(?R)

(?R)recurses into the entire pattern

2nd Alternative[^<]+

Negated Character Class[^<]+

+matches at least one character outside the set below:

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\w+any word character, repeated at least once

>the literal > (62₁₀ / 76₈ / 3E₁₆)

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

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Search reference

Regular Expression

<\w+[^>]*?>((?R)|[^<]+)*<\/\w+>

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