26. The system of claim 18 , wherein the walker is further configured to divide the text content into of the plurality of the text parts such that in each text part, all the characters of the text part have the same explicit embedding level and override status.
26. The system of claim 18 , wherein the walker is further configured to divide the text content into of the plurality of the text parts such that in each text part, all the characters of the text part have the same explicit embedding level and override status. 27. The system of claim 26 , wherein the walker is further configured to divide the text content into the plurality of text parts such that no text part has characters belonging to different paragraphs as defined by applying the Unicode Bidirectional Algorithm to the text part with any higher level protocols corresponding to this type of content.