[Biojava-l] is valid character

[Eric Buckley]

I was wondering if there is a way to check if a character is valid within an 
alphabet. For example I want to do some preprocessing on a string before I 
convert the string to a SymbolList using DNATools. However if an invalid 
character exists in the string an Exception will be thrown, so I would first 
like to remove (or replace) all of the invalid characters.

Eric Buckley