49 lines
1.4 KiB
C#
49 lines
1.4 KiB
C#
using System.Text;
|
|
using MediaBrowser.Model.IO;
|
|
using MediaBrowser.Model.TextEncoding;
|
|
|
|
namespace Emby.Common.Implementations.TextEncoding
|
|
{
|
|
public class TextEncoding : IEncoding
|
|
{
|
|
private readonly IFileSystem _fileSystem;
|
|
|
|
public TextEncoding(IFileSystem fileSystem)
|
|
{
|
|
_fileSystem = fileSystem;
|
|
}
|
|
|
|
public byte[] GetASCIIBytes(string text)
|
|
{
|
|
return Encoding.ASCII.GetBytes(text);
|
|
}
|
|
|
|
public string GetASCIIString(byte[] bytes, int startIndex, int length)
|
|
{
|
|
return Encoding.ASCII.GetString(bytes, 0, bytes.Length);
|
|
}
|
|
|
|
public Encoding GetFileEncoding(string srcFile)
|
|
{
|
|
// *** Detect byte order mark if any - otherwise assume default
|
|
var buffer = new byte[5];
|
|
|
|
using (var file = _fileSystem.OpenRead(srcFile))
|
|
{
|
|
file.Read(buffer, 0, 5);
|
|
}
|
|
|
|
if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf)
|
|
return Encoding.UTF8;
|
|
if (buffer[0] == 0xfe && buffer[1] == 0xff)
|
|
return Encoding.Unicode;
|
|
if (buffer[0] == 0 && buffer[1] == 0 && buffer[2] == 0xfe && buffer[3] == 0xff)
|
|
return Encoding.UTF32;
|
|
if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76)
|
|
return Encoding.UTF7;
|
|
|
|
return null;
|
|
}
|
|
}
|
|
}
|