24. The system of claim 20 , wherein the bidirectional text checker is further configured to identify a mismatch when the intrinsic text direction is left-to-right and the declared text direction is right-to-left or when the intrinsic text direction is right-to-left and the declared text direction is left-to-right.
25. The system of claim 24 , wherein a mismatch is not identified when either the intrinsic text direction or the declared direction is at least one of neutral, mixed, undefined or other than left-to-right or right-to-left.