Перекодирование из одних кодировок в другие

Code:

const

Koi: Array[0..66] of Char = ("T", "Ё", "ё", "А", "Б", "В", "Г", "Д", "Е", "Ж",

               "З", "И", "Й", "К", "Л", "М", "Н", "О", "П", "Р",

               "С", "Т", "У", "Ф", "Х", "Ц", "Ч", "Ш", "Щ", "Ъ",

               "Ы", "Ь", "Э", "Ю", "Я", "а", "б", "в", "г", "д",

               "е", "ж", "з", "и", "й", "к", "л", "м", "н", "о",

               "п", "р", "с", "т", "у", "ф", "х", "ц", "ч", "ш",

               "щ", "ъ", "ы", "ь", "э", "ю", "я");

Win: Array[0..66] of Char = ("ё", "Ё", "T", "ю", "а", "б", "ц", "д", "е", "ф",

               "г", "х", "и", "й", "к", "л", "м", "н", "о", "п",

               "я", "р", "с", "т", "у", "ж", "в", "ь", "ы", "з",

               "ш", "э", "щ", "ч", "ъ", "Ю", "А", "Б", "Ц", "Д",

               "Е", "Ф", "Г", "Х", "И", "Й", "К", "Л", "М", "Н",

               "О", "П", "Я", "Р", "С", "Т", "У", "Ж", "В", "Ь",

               "Ы", "З", "Ш", "Э", "Щ", "Ч", "Ъ");

function WinToKoi(Str: String): String;

var

i, j, Index: Integer;

begin

Result := ""

for i := 1 to Length(Str) do

begin

Index := -1;

for j := Low(Win) to High(Win) do

  if Win[j] = Str[i] then

  begin

   Index := j;

   Break;

  end;

if Index = -1 then Result := Result + Str[i]

        else Result := Result + Koi[Index];

end;

end;

function KoiToWin(Str: String): String;

var

i, j, Index: Integer;

begin

Result := ""

for i := 1 to Length(Str) do

begin

Index := -1;

for j := Low(Win) to High(Win) do

  if Koi[j] = Str[i] then

  begin

   Index := j;

   Break;

  end;

if Index = -1 then Result := Result + Str[i]

        else Result := Result + Win[Index];

end;

end;

procedure SendFileOnSMTP(Host: String;

            Port: Integer;

            Subject,

            FromAddress, ToAddress,

            Body,

            FileName: String);

var

NMSMTP: TNMSMTP;

begin

if DelSpace(ToAddress) = "" then Exit;

if ToAddress[1] = "" then Exit;

if (DelSpace(FileName) <> "") and not FileExists(FileName) then

raise Exception.Create("SendFileOnSMTP: file not exist: " + FileName);

NMSMTP := TNMSMTP.Create(nil);

try

NMSMTP.Host := Host;

NMSMTP.Port := Port;

NMSMTP.Charset := "koi8-r"

NMSMTP.PostMessage.FromAddress := FromAddress;

NMSMTP.PostMessage.ToAddress.Text := ToAddress;

NMSMTP.PostMessage.Attachments.Text := FileName;

NMSMTP.PostMessage.Subject := Subject;

NMSMTP.PostMessage.Date := DateTimeToStr(Now);

NMSMTP.UserID := "netmaster"

NMSMTP.PostMessage.Body.Text := WinToKoi(Body);

NMSMTP.FinalHeader.Clear;

NMSMTP.TimeOut := 5000;

NMSMTP.Connect;

NMSMTP.SendMail;

NMSMTP.Disconnect;

finally

NMSMTP.Free;

end;

end;