/// <summary>
/// Clone the <see cref="Base64Encoder"/> with its current state.
/// </summary>
/// <remarks>
/// Creates a new <see cref="Base64Encoder"/> with exactly the same state as the current encoder.
/// </remarks>
/// <returns>A new <see cref="Base64Encoder"/> with identical state.</returns>
public IMimeEncoder Clone()
{
var encoder = new Base64Encoder(rfc2047, quartetsPerLine * 4);
encoder.quartets = quartets;
encoder.saved1 = saved1;
encoder.saved2 = saved2;
encoder.saved = saved;
return(encoder);
}
static void AppendEncodedWord (StringBuilder str, Encoding charset, string text, int startIndex, int length, QEncodeMode mode)
{
var chars = new char[length];
IMimeEncoder encoder;
byte[] word, encoded;
char encoding;
int len;
text.CopyTo (startIndex, chars, 0, length);
try {
word = CharsetConvert (charset, chars, length, out len);
} catch {
charset = Encoding.UTF8;
word = CharsetConvert (charset, chars, length, out len);
}
if (CharsetRequiresBase64 (charset) || GetBestContentEncoding (word, 0, len) == ContentEncoding.Base64) {
encoder = new Base64Encoder (true);
encoding = 'b';
} else {
encoder = new QEncoder (mode);
encoding = 'q';
}
encoded = new byte[encoder.EstimateOutputLength (len)];
len = encoder.Flush (word, 0, len, encoded);
str.AppendFormat ("=?{0}?{1}?", CharsetUtils.GetMimeCharset (charset), encoding);
for (int i = 0; i < len; i++)
str.Append ((char) encoded[i]);
str.Append ("?=");
}
/// <summary>
/// Clone the <see cref="Base64Encoder"/> with its current state.
/// </summary>
/// <remarks>
/// Creates a new <see cref="Base64Encoder"/> with exactly the same state as the current encoder.
/// </remarks>
/// <returns>A new <see cref="Base64Encoder"/> with identical state.</returns>
public IMimeEncoder Clone ()
{
var encoder = new Base64Encoder (rfc2047, quartetsPerLine * 4);
encoder.quartets = quartets;
encoder.saved1 = saved1;
encoder.saved2 = saved2;
encoder.saved = saved;
return encoder;
}