System.Text.EncodingHelper.GetDefaultEncoding C# (CSharp) Метод

	internal static Encoding GetDefaultEncoding ()
	{
		Encoding enc = null;
						// See if the underlying system knows what
						// code page handler we should be using.
						int code_page = 1;
						
						string code_page_name = InternalCodePage (ref code_page);
						try {
							if (code_page == -1)
								enc = Encoding.GetEncoding (code_page_name);
							else {
								// map the codepage from internal to our numbers
								code_page = code_page & 0x0fffffff;
								switch (code_page){
								case 1: code_page = 20127; break; // ASCIIEncoding.ASCII_CODE_PAGE
								case 2: code_page = 65007; break; // UTF7Encoding.UTF7_CODE_PAGE
								case 3: code_page = 65001; break; // UTF8Encoding.UTF8_CODE_PAGE
								case 4: code_page = 1200; break; // UnicodeEncoding.UNICODE_CODE_PAGE
								case 5: code_page = 1201; break; // UnicodeEncoding.BIG_UNICODE_CODE_PAGE
								case 6: code_page = 1252; break; // Latin1Encoding.ISOLATIN_CODE_PAGE
								}
								enc = Encoding.GetEncoding (code_page);
							}
						} catch (NotSupportedException) {
							// code_page is not supported on underlying platform
							enc = EncodingHelper.UTF8Unmarked;
						} catch (ArgumentException) {
							// code_page_name is not a valid code page, or is 
							// not supported by underlying OS
							enc = EncodingHelper.UTF8Unmarked;
						}
		return enc;
	}