private static void ResolveEncoding(String filePath, out String exportExtensionKeyName, out Encoding encoding)
{
using (FileStream fs = File.OpenRead(filePath))
{
ICharsetDetector cdet = new CharsetDetector();
byte[] buffer = new byte[1024];
Boolean done = false;
int count;
while ((count = fs.Read(buffer, 0, buffer.Length)) > 0 && !done)
{
cdet.Feed(buffer, 0, count);
done = cdet.IsDone();
}
cdet.DataEnd();
if (String.Equals(cdet.Charset, Ude.Charsets.UTF8, StringComparison.Ordinal))
{
exportExtensionKeyName = Utf8ExportExtensionKeyName;
encoding = Encoding.UTF8;
}
else if (String.Equals(cdet.Charset, Ude.Charsets.UTF16_LE, StringComparison.Ordinal))
{
exportExtensionKeyName = Utf16ExportExtensionKeyName;
encoding = Encoding.Unicode;
}
else if (String.Equals(cdet.Charset, Ude.Charsets.UTF32_LE, StringComparison.Ordinal))
{
exportExtensionKeyName = Utf32ExportExtensionKeyName;
encoding = Encoding.UTF32;
}
else
{
exportExtensionKeyName = OemExportExtensionKeyName;
encoding = Encoding.Default;
}
}
}