static getCodeword(symbol /*int*/) {
			const i = Arrays.binarySearch(PDF417Common.SYMBOL_TABLE, symbol & 0x3FFFF);
			if (i < 0) {
				return -1;
			}
			return (PDF417Common.CODEWORD_TABLE[i] - 1) % PDF417Common.NUMBER_OF_CODEWORDS;
		}
@param symbol encoded symbol to translate to a codeword
@return the codeword corresponding to the symbol.