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I use Visual Studio 2010, C# to read Gmail inbox using IMAP, it works as a charm, but I think Unicode is not fully supported as I cannot get Persian (Farsi) strings easily.
For instance I have my string: سلام, but IMAP gives me: "=?utf-8?B?2LPZhNin2YU=?=".
How can I convert it to original string? any tips from converting utf-8 to string?
886
So first, write the very first character of the encoded string and remove it from the encoded string then start adding the first character of the encoded string first to the left and then to the right of the decoded string and do this task repeatedly till the encoded string becomes empty.
UTF-8 vs.UTF-8 encodes a character into a binary string of one, two, three, or four bytes. UTF-16 encodes a Unicode character into a string of either two or four bytes. This distinction is evident from their names.
In order to convert a String into UTF-8, we use the getBytes() method in Java. The getBytes() method encodes a String into a sequence of bytes and returns a byte array. where charsetName is the specific charset by which the String is encoded into an array of bytes.
Let's have a look at the meaning of the MIME encoding:
=?utf-8?B?...something...?=
^ ^
| +--- The bytes are Base64 encoded
|
+---- The string is UTF-8 encoded
So, to decode this, take the ...something... out of your string (2LPZhNin2YU= in your case) and then
reverse the Base64 encoding
var bytes = Convert.FromBase64String("2LPZhNin2YU=");
interpret the bytes as a UTF8 string
var text = Encoding.UTF8.GetString(bytes);
text should now contain the desired result.
A description of this format can be found in Wikipedia:
77
What you have is a MIME encoded string. .NET does not include libraries for MIME decoding, but you can either implement this yourself or use a library.
40
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