Regular Expressions 101

Explanation
Pro

Branch Reset Group(?|<h3>(.+?)</h3>|<h4>(.+?)</h4>)

1st Alternative<h3>(.+?)</h3>

<h3>the literal text <h3> (case sensitive)

Group 1(.+?)

.+?any character, repeated at least once

</h3>the literal text </h3> (case sensitive)

2nd Alternative<h4>(.+?)</h4>

<h4>the literal text <h4> (case sensitive)

Group 1(.+?)

.+?any character, repeated at least once

</h4>the literal text </h4> (case sensitive)

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

Detailed match information will be displayed here automatically.

25 tokens

(?|<h3>(.+?)</h3>|<h4>(.+?)</h4>)

New

<h3>foo</h3>
<h4>bar</h4>
<h3>title</h4>

<h3>foo</h3>
<h4>bar</h4>
<h3>title</h4>