eXtended

X

Any character following a \ that is not a valid meta sequence will be faulted and raise an error.

Examples

PCRE

Share & Embed

Use this snippet to display this token on your own site.

<!-- Embed Regex Token: X -->
<code class="regex-token">X</code> - eXtended
<small><a href="https://testregex.com/cheatsheet/extended">See details</a></small>