Is there a ReplaceRules equivalent for document titles?

I have a site name appended to every title.  When Swish-E stores the 
title, I'd like to remove that text string (it's the same on every 
document), much like you can use ReplaceRules to modify the file path 
that gets stored.

For the record, I searched the site for a good 20 minutes trying to find 
an answer for this.

Version 2.4.3 on Gentoo Linux.  File indexing method.