bool krui_getFirstSymbolTableEntry( char * *symbol_name,
int *symbol_type )
bool krui_getNextSymbolTableEntry( char * *symbol_name,
int *symbol_type )
determines the name and type of the first/next entry in the symbol
table and returns TRUE if another entry exists.
bool krui_symbolSearch( char *symbol, int symbol_type)
returns TRUE if the given symbol exists in the symbol table.