Searching for individual characters within an attribute?

Is it possible to do this?

For example

<nm>
	<G V="Ed" CLAS="[B R C]"/>
	<G V="B" CLAS="[B R I]"/>
	<F V="Araquel" CLAS="[B R C]"/>
</nm>

I would like to be able to pick out that a G element contains a middle
initial of a person's name. This is done by looking at the CLAS attribute
and finding an I in there. The other characters within CLAS can be a whole
range of things which means I can't just search for a whole string like "[B
R I]".

Any ideas?

Ed
--
Ed Araquel

Mayo Foundation
200 1st St. SW - Siebens 7
Rochester, Minnesota
55905
(507) 538-1023



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