Regular Expressions 101

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

Non-Capturing Group(?:[^<]|<(?!\/tag>))*

*repeats the group contents below any number of times:

1st Alternative[^<]

Negated Character Class[^<]

<the literal < (60₁₀ / 74₈ / 3C₁₆)

2nd Alternative<(?!\/tag>)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Negative Lookahead(?!\/tag>)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

tag>the literal text tag> (case sensitive)

contentthe literal text content (case sensitive)

.*?any character, repeated any number of times

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

tag>the literal text tag> (case sensitive)

Global pattern flags

s modifier: single line. Allows a dot to match line terminators

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.

Search reference

Regular Expression

<tag>(?:[^<]|<(?!\/tag>))*content.*?<\/tag>

Test String
New

<tag>
    ...
</tag>
<tag>
    ...
    content
    ...
</tag>
<tag>
    ...
    content
    ...
</tag>
<tag>
    ...
</tag>
<tag>
    ...
    content
    ...
</tag>
<tag>
    ...
</tag>
<tag>
    ...
</tag>

Regular Expression

Test StringNew

Test String
New