Regular Expressions 101

Pro

Non-Capturing Group(?:[\s\S]*?)

Character Class[\s\S]*?

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

\sany whitespace character

\Sany non-whitespace character

Group 1(<article role="main">[\s\S]*<\/article>)

<article role="main">the literal text <article role="main"> (case sensitive)

Character Class[\s\S]*

*matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

<the literal < (60₁₀ / 74₈ / 3C₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

article>the literal text article> (case sensitive)

Non-Capturing Group(?:[\s\S]*)

Character Class[\s\S]*

*matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

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

(?:[\s\S]*?)(<article role="main">[\s\S]*<\/article>)(?:[\s\S]*)

New

<chapter version="1.21" id="chapter_01">

    <p>before</p>

    <article role="main">text
 content</article>

    <p>after</p>
</chapter>

<chapter version="1.21" id="chapter_01">

    <p>before</p>

    <article role="main">text
 content</article>

    <p>after</p>
</chapter>