HStr в Delphi 7 Lite

[QaK]

ЭЭээ, ну да, вообще-то, легко ... щас дам

function SymbolEntersCount(s: string): string;
var
  i: integer;
begin
  Result := '';
  for i := 1 to Length(s) do
    if not(s[i] in [' ',#10,#13]) then
      Result:=Result+s[i];
end;

function HexToString(Hex:String):String;
var
  buf:String;
  bt:Byte;
  i:Integer;
begin
  buf:='';
  Hex:=SymbolEntersCount(UpperCase(Hex));
  for i:=0 to (Length(Hex) div 2)-1 do begin
    bt:=0;
    if (Byte(hex[i*2+1])>$2F)and(Byte(hex[i*2+1])<$3A)then bt:=Byte(hex[i*2+1])-$30;
    if (Byte(hex[i*2+1])>$40)and(Byte(hex[i*2+1])<$47)then bt:=Byte(hex[i*2+1])-$37;
    if (Byte(hex[i*2+2])>$2F)and(Byte(hex[i*2+2])<$3A)then bt:=bt*16+Byte(hex[i*2+2])-$30;
    if (Byte(hex[i*2+2])>$40)and(Byte(hex[i*2+2])<$47)then bt:=bt*16+Byte(hex[i*2+2])-$37;
    buf:=buf+char(bt);
  end;
  HexToString:=buf;
end;