appendLetter(escapeValue); } else { dataBuffer.ColumnStart = dataBuffer.Position + 1; switch (currentLetter) { case 'n': appendLetter(Letters.LF); break; case 'r': appendLetter(Letters.CR); break; case 't': appendLetter(Letters.TAB); break; case 'b': appendLetter(Letters.BACKSPACE); break; case 'f': appendLetter(Letters.FORM_FEED); break; case 'e': appendLetter(Letters.ESCAPE); break; case 'v': appendLetter(Letters.VERTICAL_TAB); break; case 'a': appendLetter(Letters.ALERT); break;