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BIO.mod
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1994-11-08
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IMPLEMENTATION MODULE BIO ;
FROM FIO IMPORT
StdIn, StdOut, StdErr, (* variables *)
EndType, File, Status, (* types *)
(* procedures *)
Close, EOF, EOLN, FindPosition,
IOStatus, FlushFile, ReportError,
ReadChar, ReadInteger, ReadLine,
ReadReal, ReadLongReal, ReadString, ReadLn,
WriteChar, WriteInteger, WriteLine,
WriteReal, WriteRealFmt, WriteLongReal, WriteLongRealFmt, WriteString,
WriteLn, UnReadChar ;
PROCEDURE IsMore( ) : BOOLEAN ;
BEGIN RETURN NOT EOF( StdIn )
END IsMore ;
PROCEDURE IsEndOfLine( ) : BOOLEAN ;
BEGIN RETURN EOLN( StdIn )
END IsEndOfLine ;
PROCEDURE PushBackChar( c : CHAR ) ;
BEGIN UnReadChar( StdIn, c )
END PushBackChar ;
PROCEDURE GetLn( VAR s : ARRAY OF CHAR ) ;
BEGIN ReadLn( StdIn, s )
END GetLn ;
PROCEDURE PutLn( s : ARRAY OF CHAR );
BEGIN WriteLn( StdOut, s )
END PutLn ;
PROCEDURE GetInteger( VAR int : LONGINT ) ;
BEGIN
LOOP
int := ReadInteger( StdIn ) ;
IF IOStatus( StdIn ) = NoError THEN EXIT END ;
WriteString( StdErr, "Not a valid Integer. Try again: ") ;
FlushFile( StdErr ) ;
ReadLine( StdIn )
END
END GetInteger ;
PROCEDURE PutInteger( int : LONGINT ) ;
BEGIN WriteInteger( StdOut, int )
END PutInteger ;
PROCEDURE GetReal( VAR real : REAL ) ;
BEGIN
LOOP
real := ReadReal( StdIn ) ;
IF IOStatus( StdIn ) = NoError THEN EXIT END ;
WriteString( StdErr, "Not a valid REAL. Try again: ") ;
FlushFile( StdErr ) ;
ReadLine( StdIn )
END
END GetReal ;
PROCEDURE PutReal( real : REAL ) ;
BEGIN WriteReal( StdOut, real )
END PutReal ;
PROCEDURE PutRealFmt( r : REAL; width, decplaces : LONGINT ) ;
BEGIN WriteRealFmt( StdOut, r, width, decplaces )
END PutRealFmt ;
PROCEDURE GetLongReal( VAR longReal : LONGREAL ) ;
BEGIN
LOOP
longReal := ReadLongReal( StdIn ) ;
IF IOStatus( StdIn ) = NoError THEN EXIT END ;
WriteString( StdErr, "Not a valid LONGREAL. Try again: ") ;
FlushFile( StdErr ) ;
ReadLine( StdIn )
END
END GetLongReal ;
PROCEDURE PutLongReal( lr : LONGREAL ) ;
BEGIN WriteLongReal( StdOut, lr )
END PutLongReal ;
PROCEDURE PutLongRealFmt( r : LONGREAL ; width, decplaces : LONGINT ) ;
BEGIN WriteLongRealFmt( StdOut, r, width, decplaces )
END PutLongRealFmt ;
PROCEDURE GetChar( VAR ch : CHAR ) ;
BEGIN ch := ReadChar( StdIn )
END GetChar ;
PROCEDURE InspectChar( ) : CHAR ;
VAR ch : CHAR ;
BEGIN
IF EOF( StdIn ) THEN
RETURN 0C
ELSE
ch := ReadChar( StdIn ) ;
UnReadChar( StdIn, ch ) ;
RETURN ch
END
END InspectChar;
PROCEDURE PutChar( ch : CHAR ) ;
BEGIN WriteChar( StdOut, ch )
END PutChar ;
PROCEDURE GetString( VAR str : ARRAY OF CHAR ) ;
BEGIN
LOOP
str[0] := 0C ;
ReadString( StdIn, str ) ;
IF IOStatus( StdIn ) = NoError THEN EXIT END ;
WriteString( StdErr, "Not a valid STRING. Try again: ") ;
FlushFile( StdErr ) ;
ReadLine( StdIn )
END ;
END GetString ;
PROCEDURE PutString( str : (*@N*) ARRAY OF CHAR ) ;
BEGIN WriteString( StdOut, str )
END PutString ;
PROCEDURE GetLine( ) ;
BEGIN ReadLine( StdIn )
END GetLine;
PROCEDURE PutLine( ) ;
BEGIN WriteLine( StdOut )
END PutLine ;
PROCEDURE Flush( ) ;
BEGIN FlushFile( StdOut ) ; FlushFile( StdIn )
END Flush ;
END BIO.