3. The method of claim 2 , wherein the determining of the symmetric swapping attribute further comprises: setting the symmetric swapping attribute to an OFF value if the orientation attribute is determined as the LTR value and the text type attribute is determined as visual; setting the symmetric swapping attribute to an ON value if the orientation attribute is determined as the RTL value and the text type attribute is determined as visual; and setting the symmetric swapping attribute to an ON value if the text type attribute is determined as logical.
2. The method of claim 1 , further comprising determining a symmetric swapping attribute of the text, using the determined text type attribute and the determined orientation attribute, the determined symmetric swapping attribute indicating whether characters in a predetermined character set are to be reversed upon conversion of the text from a source layout to a target layout.