10. The system of claim 8 , wherein the plurality of computer instructions further cause the at least one computing device to at least designate the series of characters in the text block as the text unit according to at least one rule.
10. The system of claim 8 , wherein the plurality of computer instructions further cause the at least one computing device to at least designate the series of characters in the text block as the text unit according to at least one rule. 13. The system of claim 10 , wherein the at least one rule specifies designating the series of characters as a text unit when the series of characters forms at least one of a word, a sentence, or a paragraph.