[Newbies] Tables for WideString?

Hello!!!

I have problems with WideString. (realy not with WideString, but debugger brings me to this class). When I send #beginsWith: message to WideString, squeak invokes String>>beginsWith: and this method use String>>findSubstring:in:startingAt:matchTable: For String matchTables (AsciiOrder CaseInsensitiveOrder CaseSensitiveOrder) contains 256 bytes. So when invoked 'matchTable at: myWideChar asciiValue + 1' -- i get error -- 'subscript is out of bounds'.

How to fix this? I must create my own huge tables for wide strings?

And another question. From class definition for WideString 'String variableWordSubclass: #WideString' What means 'variableWordSubclass' and is it restrict me in some way, or I can ignore this?

Thanks. Alex.