PROGRAM PROG7;
{$U+          Copyright (C), 1985 by Lyle Faurot.  All rights reserved.

    New Topics: REPEAT statement
                CHAR data type

}

VAR
  Response         : Char;
  Correct_Response : Boolean;

BEGIN
  WriteLn('Turbo Pascal seems to ');
  WriteLn;
  WriteLn('A. Run faster than other Pascals.');
  WriteLn('B. Compile faster than others.');
  WriteLn('C. Take less room in memory.');
  WriteLn('D. All of the above.');
  WriteLn;

  REPEAT
      Write('Enter your choice - A, B, C, or D: ');
      ReadLn(Response);
      WriteLn;

      If (Response = 'D') or (Response = 'd')
          THEN
            Correct_Response := True
          ELSE
            Correct_Response := False;

      If Correct_Response
          THEN
            WriteLn('Right!')
          ELSE
            WriteLn('Wrong choice, try again.');

  UNTIL Correct_Response;

END.