code: function DOT(fnLeft, sIdentifier, aParts, oReference) {
  		var oParent = fnLeft(aParts),
  			vChild = oParent[sIdentifier];
  
  		if (oReference) {
  			oReference.base = oParent;
  		}
  		return vChild;
  	}
docs: Formatter function for member access via the dot operator.
  @param {function} fnLeft - formatter function for the left operand
  @param {string} sIdentifier - the identifier on the dot's right side
  @param {any[]} aParts - the array of binding values
  @param {object} [oReference]
  optional side channel to return the base value (left operand) of the reference
  @return {any} - the left operand's member with the name