Regex for string between to delimeters

[mninansplunk]

Hello,

Thank you for your help on this in advance,  I just need to create a field in Splunk Search that contains the value between 2 delimiters.    The delimiter is "?".  For example.

Athena.siteone.com?suvathp001?443

What would be the regex to only extract suvathp001

Thanks again for your help,

Tom

[richgalloway]

The general form for that regex is "<<delimiter>>(?<field>[^<<delimiter>>]+)".  In this case, the delimiter is a regex special character so escaping is needed.  Try this command:

| rex "\?(?<field>[^\?]+)"