[xsl] Inserting Entities into an XML file

[Chad Chelius <cchelius@xxxxxxxxxxxxxxx>]

I have a project where I need to insert specific entities throughout  
an XML document for some of the basic entities like (', &, ", etc.)  
but also for some very specific math equation symbols. I know what  
entities need to be inserted but I'm not quite sure what the best way  
would be to go about this. Initially I am thinking a complex find/ 
change routine, but before I spend a lot of time doing that, I'd like  
to know if anyone has a better mousetrap to accomplish this task. Any  
ideas?

chad