public void GetEncodingTest7(int codePage)
{
Encoding enc = TextEncodingConverter.GetEncoding(codePage);
Assert.AreEqual(65001, enc.CodePage);
Assert.IsNotInstanceOfType(enc.EncoderFallback, EncoderFallback.ExceptionFallback.GetType());
Assert.IsNotInstanceOfType(enc.DecoderFallback.GetType(), DecoderFallback.ExceptionFallback.GetType());
}
public void GetEncodingTest5()
{
const int defaultCodePage = 1252;
Encoding enc = TextEncodingConverter.GetEncoding(0);
Assert.AreEqual(defaultCodePage, enc.CodePage);
Assert.IsNotInstanceOfType(enc.EncoderFallback, EncoderFallback.ExceptionFallback.GetType());
Assert.IsNotInstanceOfType(enc.DecoderFallback.GetType(), DecoderFallback.ExceptionFallback.GetType());
}
/// <summary>
/// Dekodiert Quoted-Printable kodierten Text, der sich in <see cref="Value"/> befindet, wenn
/// <see cref="VCards.Models.PropertyParts.ParameterSection.Encoding"/>
/// gleich <see cref="VCdEncoding.QuotedPrintable"/> ist.
/// </summary>
internal void DecodeQuotedPrintable()
{
if (this.Parameters.Encoding == VCdEncoding.QuotedPrintable && !_quotedPrintableDecoded)
{
this.Value = QuotedPrintableConverter.Decode(this.Value, // null-Prüfung nicht erforderlich
TextEncodingConverter.GetEncoding(this.Parameters.Charset)); // null-Prüfung nicht erforderlich
_quotedPrintableDecoded = true; // Encoding nicht 2x durchführen
}
}
/// <summary>
/// Gibt den im <see cref="DataUrl"/> eingebetteten Text zurück oder <c>null</c>,
/// wenn der <see cref="DataUrl"/> eingebettete binäre Daten enthält.
/// </summary>
/// <returns>Der eingebettete Text oder <c>null</c>.</returns>
public string?GetEmbeddedText()
{
if (!ContainsText)
{
return(null);
}
if (Encoding == DataEncoding.Base64)
{
// als Base64 codierter Text:
byte[] data;
try
{
data = Base64Parser.ParseBase64(EncodedData);
}
catch
{
return(null);
}
string?charsetValue = MimeType.Parameters?.FirstOrDefault(x => x.Key == "charset").Value;
int codePage = TextEncodingConverter.GetCodePage(data, out int bomLength);
Encoding enc = bomLength != 0
? TextEncodingConverter.GetEncoding(codePage)
: StringComparer.OrdinalIgnoreCase.Equals(charsetValue, "US-ASCII")
? System.Text.Encoding.UTF8
: TextEncodingConverter.GetEncoding(charsetValue);
try
{
return(enc.GetString(data, bomLength, data.Length - bomLength));
}
catch
{
return(null);
}
}
else
{
// Url-Codierter UTF-8-String:
return(Uri.UnescapeDataString(EncodedData ?? ""));
}
}
public void ParseTest2()
{
Encoding enc = TextEncodingConverter.GetEncoding("ISO-8859-1");
Assert.AreEqual(28591, enc.CodePage);
}
public void ParseTest1()
{
Encoding enc = TextEncodingConverter.GetEncoding("blödelidödel");
Assert.AreEqual(UTF8, enc.CodePage);
}