[Zope] Newbie: String work

[Andy Gates]

Simple stuff from the simple people today: string manipulation.

I have a string variable which has various chunks delimited by double 
tildes ~~. In order to do what I need to do, I need to extract the 
section of the string after the last double-tilde, so that

"fred~~bloggs" returns "bloggs"
"fred" returns "fred"
"fred~~bloggs~aardvark" returns "aardvark"

I can see that rfind is the thing I need to use, but as usual (gah! 
newbie!) I'm stuck on the syntax.  Help!
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Andy Gates, Learning and Research Technology
Andy.Gates@bristol.ac.uk - ICQ#74362415