convert Hex UTF-8 bytes to Hex code point

5
votes

how can i convert
Hex UTF-8 bytes -E0 A4 A4 to hex code point - 0924

ref: http://www.ltg.ed.ac.uk/~richard/utf-8.cgi?input=e0+a4+a4&mode=bytes

I need this because when i read Unicode data in c# it is taking it as single byte sequence and displaying 3 characters instead of 1,but i need 3 byte sequence(read 3 bytes and display single character),I tried many solutions but didn't get the result.

If I can display or store a 3-byte sequence utf-8 character then I don't need conversion.

senario is like this:

    string str=getivrresult();

in str I have a word with each character as 3 byte utf-8 sequence.

Edited:

             string str="त";
             //i want it as "त" in str.

    Character                                   त
    Character name                              DEVANAGARI LETTER TA
    Hex code point                              0924
    Decimal code point                          2340
    Hex UTF-8 bytes                             E0 A4 A4
    Octal UTF-8 bytes                           340 244 244
    UTF-8 bytes as Latin-1 characters bytes     à ¤ ¤

Thank You.

2
c#unicodeutf-8hex
Please show us what you have tried so far. - dtb
It's really unclear what your input is and what output you want... a sample showing both would be helpful. - Jon Skeet
@JonSkeet: I assume the OP wants to reverse string.Join(" ", Encoding.UTF8.GetBytes(string).Select(x => x.ToString("X2"))); - dtb
@dtb: Possibly, but it's not entirely clear. In particular, it's not obvious whether the input is a byte array or a string... - Jon Skeet
BitConverter.ToString(b).Replace("-", "") - Charles Okwuagwu

2 Answers

6
votes

Use the GetString methdod in the Encoding class:

byte[] data = { 0xE0, 0xA4, 0xA4 };
string str = Encoding.UTF8.GetString(data);

The string now contains one character with the character code 0x924.

0
votes
        //utf-8 Single Byte Sequence input
        string str = "त";
        int i = 0;
        byte[] data=new byte[3];

        foreach (char c in str)
        {
            string tmpstr = String.Format("{0:x2}", (int)c);
            data[i] = Convert.ToByte(int.Parse(tmpstr, System.Globalization.NumberStyles.HexNumber));
            i++;
        }


        //utf-8 3-Byte Sequence Output now stp contains "त".
        string stp = Encoding.UTF8.GetString(data);