code: public static String getOffsetCodeFromCurveName(String curveName) {
  		if(curveName == null || curveName.length() == 0) {
  			return null;
  		}
  		String[] splits = curveName.split("(?<=\\D)(?=\\d)");
  		String offsetCode = splits[splits.length-1];
  		if(!Character.isDigit(offsetCode.charAt(0))) {
  			return null;
  		}
  
  		offsetCode = offsetCode.split("(?<=[A-Za-z])(?=.)", 2)[0];
  		offsetCode = offsetCode.replaceAll( "[\\W_]", "" );
  		return offsetCode;
  	}
docs: Determines the offset code of a forward contract from the name of a forward curve.
  This method will extract a group of one or more digits together with the first letter behind them, if any.
  If there are multiple groups of digits in the name, this method will extract the last.
  If there is no number in the string, this method will return null.
  
  @param curveName The name of the curve.
  @return The offset code as String