What syntax or format of regex does Splunk support?

[Simeon]

I have created regular expressions (regex) to extract fields and want to know what syntax style Splunk supports.

[Simeon · Accepted solution]

Splunk uses the Perl Compatible Regular Expression (PCRE) library. Therefore, you should utilize the perl syntax for creating regular expressions (regex).

[gkanapathy]

References on PCRE are here: http://www.pcre.org/