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Regex in sift statements


	The following regex behaves in a way that reveals my ignorance of 

	This will match on CAN:: and CANEDM::Q but fails for CANEDM::QQ

	I thought that * matched 0 or more occurences of the previous pattern
This appears to match 0 or 1 but not more.  This is the behaviour I'd 
have expected from [A-Z]?

=> Sherwood Botsford                   sherwood@space.ualberta.ca <= 
=> University of Alberta         Lab Manager, Space Physics Group <=         
=> tel:403 492-3713                             fax: 403 492-4256 <=