I have written code which reads network stream and stores data into byte array, then convert that byte array to string array.
I want to remove non printable ASCII character (Code 28 ie File Separator) from string array or directly from byte array.
How can I achieve the same ?
I tried following code:
saBytesReceived = saBytesReceived.Select(s => s.Replace(@"[^U+001C]", "")).ToArray();
Code :-
if (serverSocket.Connected)
{
bBytesToRead = serverSocket.Available;
if (bBytesToRead > 0)
{
try
{
bDataReceived = new byte[bBytesToRead];
networkStream.Read(bDataReceived, 0, bBytesToRead);
try
{
if (System.Text.ASCIIEncoding.ASCII.GetString(bDataReceived).Trim() != "")
{
uncompletedMessage.IdleCount = 0;
saBytesReceived = System.Text.ASCIIEncoding.ASCII.GetString(bDataReceived).Split(new string[] { "\n" }, StringSplitOptions.None);
saBytesReceived = saBytesReceived.Select(s => s.Replace(@"[^U+001C]", "")).ToArray();
}
}
}
}
}
Not sure about the byte array but from the string you can use string.Replace. If its a single string:
string str = "1" + (char)(28) + "2";
//str.Length == 3
str = str.Replace(((char)28).ToString(), "");
//str.Length == 2
For array:
saBytesReceived = saBytesReceived.Select(s => s.Replace(((char)28).ToString(), "")).ToArray();
This was annoying me after converting a HEX string to UTF8 string because then I couldn't seem to remove the empty values from the array. @Habib you char cast and to string did the trick. Ty.
public static string GetString( string hex )
{
byte[ ] raw = new byte[ hex.Length / 2 ];
for( int i = 0; i < raw.Length; i++ )
{
byte convertToByte = Convert.ToByte( hex.Substring( i * 2, 2 ), 16 );
raw[ i ] = convertToByte;
}
var result = Encoding.UTF8.GetString( raw ).Replace( ( ( char ) 0 ).ToString( ), "" );
return result;
}
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