Regular Expressions 101

Pro

Non-Capturing Group(?:(?<=<\/)|(?<=<))

1st Alternative(?<=<\/)

Positive Lookbehind(?<=<\/)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

2nd Alternative(?<=<)

Positive Lookbehind(?<=<)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Negated Character Class[^ >\/]+

+matches at least one character outside the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

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.

25 tokens

Regular Expression

(?:(?<=<\/)|(?<=<))[^ >\/]+

New

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
</head>
<body>
    <a></a>
</body>
</html>

Substitution

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
</head>
<body>
    <a></a>
</body>
</html>