Celestin Apprentice 5/Apprentice-Release5.iso/Environments/MacMETH 3.2.4/Examples/In.MOD

Modula Implementation | 1996-06-20 | 1.4 KB | 57 lines | [TEXT/MEDT]

IMPLEMENTATION MODULE In;

IMPORT InOut;

  PROCEDURE Open;
  BEGIN
    InOut.WriteString("Please type the name of the input file,"); InOut.WriteLn;
    InOut.WriteString("or press TAB to choose it interactively."); InOut.WriteLn;
    InOut.OpenInput(""); Done := InOut.Done
  END Open;

  PROCEDURE Char(VAR ch: CHAR);
  BEGIN
       IF Done THEN InOut.Read(ch);  Done := Done & InOut.Done END
  END Char;

  PROCEDURE Int(VAR p: INTEGER);
  BEGIN IF Done THEN InOut.ReadInt(p); Done := Done & InOut.Done END
  END Int;

  PROCEDURE LongInt(VAR i: LONGINT);
  BEGIN
       IF Done THEN InOut.ReadLongInt(i); Done := Done & InOut.Done END
  END LongInt;

  PROCEDURE Real(VAR p: REAL);
  BEGIN IF Done THEN InOut.ReadReal(p); Done := Done & InOut.Done END
  END Real;

  PROCEDURE LongReal(VAR p: LONGREAL);
  BEGIN
       IF Done THEN InOut.ReadLongReal(p); Done := Done & InOut.Done END
  END LongReal;

  PROCEDURE Name(VAR nme: ARRAY OF CHAR);
  BEGIN
       IF Done THEN InOut.ReadString(nme); Done := Done & InOut.Done END
  END Name;

  PROCEDURE String(VAR str: ARRAY OF CHAR);
  CONST CR = 15C;  NUL = 0C;
  VAR ch: CHAR;  j: INTEGER;
  BEGIN
      IF Done THEN
          REPEAT  Char(ch)  UNTIL ((ch # " ") & (ch # CR)) OR ~Done;
          j := 0;
          WHILE Done & (ch # " ") & (ch # CR) DO
              IF j < SIZE(str) - 1 THEN str[j] := ch;  INC(j)  END;
              Char(ch)
          END;
          str[j] := NUL; Done := j # 0
      END
  END String;

BEGIN Done := TRUE
END In.