| public GetString ( byte bytes, int index, int count ) : string | ||
| bytes | byte | |
| index | int | |
| count | int | |
| return | string | |
public string Decompress(string filename)
{
StringBuilder result = null;
try
{
Stream s = new GZipInputStream(File.OpenRead(filename));
result = new StringBuilder(8192);
UTF7Encoding encoding = new UTF7Encoding(true);
int size = 2048;
byte[] writeData = new byte[2048];
while (true)
{
size = s.Read(writeData, 0, size);
if (size > 0)
{
result.Append(encoding.GetString(writeData,0,size));
}
else
{
break;
}
}
s.Close();
} // end try
catch (GZipException)
{
throw new Exception("Error: The file being read contains invalid data.");
}
catch (FileNotFoundException)
{
throw new Exception("Error:The file specified was not found.");
}
catch (ArgumentException)
{
throw new Exception("Error: path is a zero-length string, contains only white space, or contains one or more invalid characters");
}
catch (PathTooLongException)
{
throw new Exception("Error: The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.");
}
catch (DirectoryNotFoundException)
{
throw new Exception("Error: The specified path is invalid, such as being on an unmapped drive.");
}
catch (IOException)
{
throw new Exception("Error: An I/O error occurred while opening the file.");
}
catch (UnauthorizedAccessException)
{
throw new Exception("Error: path specified a file that is read-only, the path is a directory, or caller does not have the required permissions.");
}
return result.ToString();
}
public void NegTest1()
{
Byte[] bytes = null;
UTF7Encoding utf7 = new UTF7Encoding();
Assert.Throws<ArgumentNullException>(() =>
{
string str = utf7.GetString(bytes, 0, 2);
});
}
public void PosTest1()
{
Byte[] bytes = new Byte[] {
85, 84, 70, 56, 32, 69, 110,
99, 111, 100, 105, 110, 103, 32,
69, 120, 97, 109, 112, 108, 101};
UTF7Encoding utf7 = new UTF7Encoding();
string str = utf7.GetString(bytes, 0, bytes.Length);
}
public void NegTest3()
{
Byte[] bytes = new Byte[] {
85, 84, 70, 56, 32, 69, 110,
99, 111, 100, 105, 110, 103, 32,
69, 120, 97, 109, 112, 108, 101};
UTF7Encoding utf7 = new UTF7Encoding();
Assert.Throws<ArgumentOutOfRangeException>(() =>
{
string str = utf7.GetString(bytes, 0, -1);
});
}
public void PosTest2()
{
int startIndex = 0;
int count = 0;
Byte[] bytes = new Byte[] {
85, 84, 70, 56, 32, 69, 110,
99, 111, 100, 105, 110, 103, 32,
69, 120, 97, 109, 112, 108, 101};
startIndex = _generator.GetInt32(-55) % bytes.Length;
count = _generator.GetInt32(-55) % (bytes.Length - startIndex) + 1;
UTF7Encoding utf7 = new UTF7Encoding();
string str = utf7.GetString(bytes, startIndex, count);
}
public string ReadUDTString(string tagName)
{
lock (mSyncLock) {
System.Text.UTF7Encoding utf = new System.Text.UTF7Encoding();
Logix.Tag lengthTag = new Logix.Tag(tagName + ".LEN");
Logix.Tag dataTag = new Logix.Tag(tagName + ".DATA[0]");
ReadTag(lengthTag);
dataTag.Length = (int)lengthTag.Value;
ReadTag(dataTag);
if (dataTag.Value is sbyte) {
return Convert.ToChar(dataTag.Value).ToString();
} else if (dataTag.Value is System.Array) {
byte[] b = (byte[])dataTag.Value;
return utf.GetString(b, 0, dataTag.Length);
} else {
throw new LogixTagException("Invalid tag type.", dataTag, 0);
}
}
}
public void RFC1642_Example4 ()
{
string UniCodeString = "\u0049\u0074\u0065\u006D\u0020\u0033\u0020\u0069\u0073\u0020\u00A3\u0031\u002E";
char[] expected = UniCodeString.ToCharArray ();
byte[] UTF7Bytes = new byte[] { 0x49, 0x74, 0x65, 0x6D, 0x20, 0x33, 0x20, 0x69, 0x73, 0x20, 0x2B, 0x41, 0x4B, 0x4D, 0x2D, 0x31, 0x2E };
UTF7Encoding UTF7enc = new UTF7Encoding ();
char[] actual = UTF7enc.GetChars (UTF7Bytes);
// "Item 3 is +AKM-1." is decoded as "Item 3 is <POUND SIGN>1."
AssertEquals ("UTF #1", expected [0], actual [0]);
AssertEquals ("UTF #2", expected [1], actual [1]);
AssertEquals ("UTF #3", expected [2], actual [2]);
AssertEquals ("UTF #4", expected [3], actual [3]);
AssertEquals ("UTF #5", expected [4], actual [4]);
AssertEquals ("UTF #6", expected [5], actual [5]);
AssertEquals ("UTF #7", expected [6], actual [6]);
AssertEquals ("UTF #8", expected [7], actual [7]);
AssertEquals ("UTF #9", expected [8], actual [8]);
AssertEquals ("UTF #10", expected [9], actual [9]);
AssertEquals ("UTF #11", expected [10], actual [10]);
AssertEquals ("UTF #12", expected [11], actual [11]);
AssertEquals ("UTF #13", expected [12], actual [12]);
AssertEquals ("GetString", UniCodeString, UTF7enc.GetString (UTF7Bytes));
}
public void RFC1642_Example3 ()
{
string UniCodeString = "\u65E5\u672C\u8A9E";
char[] expected = UniCodeString.ToCharArray ();
byte[] UTF7Bytes = new byte[] { 0x2B, 0x5A, 0x65, 0x56, 0x6E, 0x4C, 0x49, 0x71, 0x65, 0x2D };
UTF7Encoding UTF7enc = new UTF7Encoding ();
char[] actual = UTF7enc.GetChars (UTF7Bytes);
// "+ZeVnLIqe-" is decoded as Japanese "nihongo"
AssertEquals ("UTF #1", expected [0], actual [0]);
AssertEquals ("UTF #2", expected [1], actual [1]);
AssertEquals ("UTF #3", expected [2], actual [2]);
AssertEquals ("GetString", UniCodeString, UTF7enc.GetString (UTF7Bytes));
}
public void RFC1642_Example2 ()
{
string UniCodeString = "\u0048\u0069\u0020\u004D\u006F\u004D\u0020\u263A\u0021";
char[] expected = UniCodeString.ToCharArray ();
byte[] UTF7Bytes = new byte[] { 0x48, 0x69, 0x20, 0x4D, 0x6F, 0x4D, 0x20, 0x2B, 0x4A, 0x6A, 0x6F, 0x41, 0x49, 0x51, 0x2D };
UTF7Encoding UTF7enc = new UTF7Encoding ();
char[] actual = UTF7enc.GetChars (UTF7Bytes);
// "Hi Mom +Jjo-!" is decoded as "Hi Mom <WHITE SMILING FACE>!"
AssertEquals ("UTF #1", expected [0], actual [0]);
AssertEquals ("UTF #2", expected [1], actual [1]);
AssertEquals ("UTF #3", expected [2], actual [2]);
AssertEquals ("UTF #4", expected [3], actual [3]);
AssertEquals ("UTF #5", expected [4], actual [4]);
AssertEquals ("UTF #6", expected [5], actual [5]);
AssertEquals ("UTF #7", expected [6], actual [6]);
AssertEquals ("UTF #8", expected [7], actual [7]);
AssertEquals ("UTF #9", expected [8], actual [8]);
AssertEquals ("GetString", UniCodeString, UTF7enc.GetString (UTF7Bytes));
}
public void RFC1642_Example1 ()
{
string UniCodeString = "\u0041\u2262\u0391\u002E";
char[] expected = UniCodeString.ToCharArray ();
byte[] UTF7Bytes = new byte [] {0x41, 0x2B, 0x49, 0x6D, 0x49, 0x44, 0x6B, 0x51, 0x2D, 0x2E};
UTF7Encoding UTF7enc = new UTF7Encoding ();
char[] actual = UTF7enc.GetChars (UTF7Bytes);
// "A+ImIDkQ-." is decoded as "A<NOT IDENTICAL TO><ALPHA>." see RFC 1642
AssertEquals ("UTF #1", expected [0], actual [0]);
AssertEquals ("UTF #2", expected [1], actual [1]);
AssertEquals ("UTF #3", expected [2], actual [2]);
AssertEquals ("UTF #4", expected [3], actual [3]);
AssertEquals ("GetString", UniCodeString, UTF7enc.GetString (UTF7Bytes));
}
public string Scan()
{
if (dispositivo_aberto && !Ocupado())
{
string dadoss = string.Empty;
UTF7Encoding enc = new UTF7Encoding();
int tamanho=155;
byte[] dados = new byte[tamanho];
dispositivo.SendControlMessage(descritor.VendorId | (1 << 7), (int)Comando.USB_FUNC_SCAN, tamanho, dados);
dadoss += enc.GetString(dados);
return dadoss;
}
else
{
return string.Empty;
}
}
/// <summary>Recebe dados do dispositivo.
/// </summary>
public string Receber()
{
if (dispositivo_aberto && !Ocupado())
{
string dadoss = string.Empty;
UTF7Encoding enc = new UTF7Encoding();
byte[] dados = new byte[8];
dispositivo.SendControlMessage(descritor.VendorId | (1 << 7), 4, 3, dados);
int tamanho = dados[1];
if (tamanho > 0)
{
Array.Resize(ref dados, tamanho);
dispositivo.SendControlMessage(descritor.VendorId | (1 << 7), 5, tamanho, dados);
dadoss += enc.GetString(dados);
return dadoss;
}
else
{
// throw new Exception("Dispositivo não inicializado.");
return string.Empty;
}
}
else
{
// throw new Exception("Dispositivo não inicializado.");
return string.Empty;
}
}
protected string Encode7Bit(byte[] data)
{
try
{
UTF7Encoding utf7 = new UTF7Encoding();
return utf7.GetString(data);
}
catch
{
return null;
}
}