> What is the best way to retrieve the email from the following text:
> 
> 
> Mr. Joseph Smith Jr. III jsmithjr@xxxxxxxx "J Jr."
> -or it might be-
> Joe jsmithjr@xxxxxxxx
> 

Assuming you're using XSLT 1.0, use any of the standard ways of tokenizing a
string (e.g. exslt's str:tokenize(), or a recursive template) and then take
the first token that contains an "@".

Michael Kay
http://www.saxonica.com/