How to convert Quoted-Print String

Question

I\'m working on French String in .NET Decoding a Mail body , I receive \"Chasn=C3=A9 sur illet\" I would like to get \"Chasné sur illet\" and i don\'t find any solution ave

Answer 1

    static string ConverFromHex(string source)
    {
        string target = string.Empty;

        int startPos = source.IndexOf('=', 0);
        int prevStartPos = 0;
        while (startPos >= 0)
        {
            // concat with substring from source
            target += source.Substring(prevStartPos, startPos - prevStartPos);

            // next offset
            startPos++;

            // update prev pos
            prevStartPos = startPos;

            // get substring
            string hexString = source.Substring(startPos, 2);

            // get int equiv
            int hexNum = 0;
            if (int.TryParse(hexString, System.Globalization.NumberStyles.AllowHexSpecifier, System.Globalization.CultureInfo.InvariantCulture, out hexNum))
            {
                // add to target string
                target += (char)hexNum;

                // add hex length
                prevStartPos += 2;
            }

            // next occurence
            startPos = source.IndexOf('=', startPos);
        }

        // add rest of source
        target += source.Substring(prevStartPos);

        return target;
    }