code: private final boolean parseBoolean(String value)
     {
        return value != null && (value.equalsIgnoreCase("true") || value.equalsIgnoreCase("y") || value.equalsIgnoreCase("yes"));
     }
docs: Parse a string representation of a Boolean value.
  XER files sometimes have "N" and "Y" to indicate boolean
  
  @param value string representation
  @return Boolean value