static long parseInt64(final String text) throws NumberFormatException
    {
        return parseInteger(text, true, true);
    }
Parse a 64-bit signed integer from the text. Unlike the Java standard {@code Integer.parseInt()}, this function
recognizes the prefixes "0x" and "0" to signify hexidecimal and octal numbers, respectively.
protostuff-parser/src/main/java/io/protostuff/parser/TextFormat.java