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IMPLEMENTATION MODULE InOut;
FROM ASCII IMPORT nul,bs,lf,del;
FROM String IMPORT Length,Append;
IMPORT NumConv;
IMPORT Terminal;
IMPORT Files;
VAR
termIsInput,termIsOutput:BOOLEAN;
inf,out:Files.File;
PROCEDURE OpenInput(defext:ARRAY OF CHAR);
VAR fname:ARRAY[0..80] OF CHAR;
f:Files.File;
BEGIN
GetFName(fname,defext);
f:=Files.Open(fname,Files.Rmode);
Done:=Files.status=Files.Done;
IF Done THEN termIsInput:=FALSE;inf:=f; END;
END OpenInput;
PROCEDURE OpenOutput(defext:ARRAY OF CHAR);
VAR fname:ARRAY[0..80] OF CHAR;
f:Files.File;
BEGIN
GetFName(fname,defext);
f:=Files.Create(fname,Files.Wmode);
Done:=Files.status=Files.Done;
IF Done THEN termIsOutput:=FALSE;out:=f; END;
END OpenOutput;
PROCEDURE CloseInput;
BEGIN
IF NOT termIsInput THEN Files.Close(inf); END;
termIsInput:=TRUE;
END CloseInput;
PROCEDURE CloseOutput;
BEGIN
IF NOT termIsOutput THEN Files.Close(out); END;
termIsOutput:=TRUE;
END CloseOutput;
PROCEDURE Read(VAR ch:CHAR);
BEGIN
IF termIsInput THEN
Terminal.Read(ch);
IF ch=lf THEN ch:=EOL; END;
Done:=TRUE;
ELSE
Files.ReadChar(inf,ch);Done:=NOT Files.IsEof(inf);
IF ch=lf THEN ch:=EOL; END;
END;
END Read;
PROCEDURE Write(ch:CHAR);
BEGIN
IF termIsOutput THEN
IF ch=EOL THEN
Terminal.Write(lf);
ELSE Terminal.Write(ch); END;
ELSE
IF ch=EOL THEN
Files.WriteChar(out,lf);
ELSE Files.WriteChar(out,ch); END;
END;
END Write;
PROCEDURE ReadString(VAR s:ARRAY OF CHAR);
VAR ch:CHAR;i:CARDINAL;flend:BOOLEAN;
BEGIN
i:=0;flend:=FALSE;
REPEAT
Read(ch);
IF (ch # " ") OR (i>0)THEN
IF (ch=del) & termIsInput THEN
IF i>0 THEN
DEC(i);Write(bs);Write(" ");Write(bs);
END;
ELSIF ch<=" " THEN flend:=TRUE;
ELSE
s[i]:=ch;INC(i);flend:=i>CARDINAL(HIGH(s));
END;
END;
UNTIL flend;
IF i<=CARDINAL(HIGH(s)) THEN s[i]:=nul; END;
termCh:=ch;
END ReadString;
PROCEDURE ReadInt(VAR x:INTEGER);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToInt(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadInt;
PROCEDURE ReadShortInt(VAR x:SHORTINT);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToShortInt(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadShortInt;
PROCEDURE ReadLongInt(VAR x:LONGINT);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToLongInt(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadLongInt;
PROCEDURE ReadCard(VAR x:CARDINAL);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToCard(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadCard;
PROCEDURE ReadShortCard(VAR x:SHORTCARD);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToShortCard(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadShortCard;
PROCEDURE ReadLongCard(VAR x:LONGCARD);
VAR s:ARRAY[0..80] OF CHAR;
BEGIN
ReadString(s);NumConv.StrToLongCard(s,10,x);
Done:=NumConv.NCStatus=NumConv.Done;
END ReadLongCard;
PROCEDURE WriteLn;
BEGIN
Write(EOL);
END WriteLn;
PROCEDURE WriteString(s:ARRAY OF CHAR);
VAR i:CARDINAL;
BEGIN
i:=0;
WHILE (i<=CARDINAL(HIGH(s))) &(s[i]#nul) DO Write(s[i]);INC(i); END;
END WriteString;
PROCEDURE WriteInt(x:INTEGER;n:CARDINAL);
BEGIN
WriteLongInt(x,n);
END WriteInt;
PROCEDURE WriteLongInt(x:LONGINT;n:CARDINAL);
VAR s:ARRAY[0..80] OF CHAR;i:CARDINAL;
BEGIN
NumConv.LongIntToStr(x,10,s);
IF n#0 THEN
FOR i:=Length(s) TO n-1 DO Write(" "); END;
END;
WriteString(s);
END WriteLongInt;
PROCEDURE WriteCard(x,n:CARDINAL);
BEGIN
OutLongCard(x,n,10);
END WriteCard;
PROCEDURE WriteLongCard(x:LONGCARD;n:CARDINAL);
BEGIN
OutLongCard(x,n,10);
END WriteLongCard;
PROCEDURE WriteOct(x,n:CARDINAL);
BEGIN
OutLongCard(x,n,8);
END WriteOct;
PROCEDURE WriteLongOct(x:LONGCARD;n:CARDINAL);
BEGIN
OutLongCard(x,n,8);
END WriteLongOct;
PROCEDURE WriteHex(x,n:CARDINAL);
BEGIN
OutLongCard(x,n,16);
END WriteHex;
PROCEDURE WriteLongHex(x:LONGCARD;n:CARDINAL);
BEGIN
OutLongCard(x,n,16);
END WriteLongHex;
(*------ internal procedures ------------*)
PROCEDURE GetFName(VAR fn,defext:ARRAY OF CHAR);
VAR flterm:BOOLEAN;ch:CHAR;i:CARDINAL;
BEGIN
flterm:=termIsInput;termIsInput:=TRUE;ch:=termCh;
ReadString(fn);i:=Length(fn);
IF (i#0) & (fn[i-1]=".") THEN Append(fn,defext); END;
termIsInput:=flterm;termCh:=ch;
END GetFName;
PROCEDURE OutLongCard(x:LONGCARD;n,base:CARDINAL);
VAR s:ARRAY[0..80] OF CHAR;i:CARDINAL;
BEGIN
NumConv.LongCardToStr(x,base,s);
IF n#0 THEN
FOR i:=Length(s) TO n-1 DO Write(" ");END;
END;
WriteString(s);
END OutLongCard;
BEGIN
termIsInput:=TRUE;termIsOutput:=TRUE;Done:=TRUE;termCh:=" ";
END InOut.
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