MODULE DaysLeft;
FROM Arguments IMPORT InitArgs, FetchString, AllArgs,
Usage;
FROM Calendar IMPORT Date, Daytime, CurrentTime,
ConvertTime;
FROM InOut IMPORT WriteString, WriteCard, WriteLn;
FROM TimeIO IMPORT Done, SreadDate, ReleaseList, Append;
VAR
date: Date; (* Datum aus der Kommandozeile *)
today: Date; (* heutiges Datum *)
PROCEDURE InitTimeIO; (* ... folgt ... *)
PROCEDURE ProcessArgs; (* ... folgt ... *)
PROCEDURE CurrentDate() : Date; (* ... folgt ... *)
BEGIN
InitTimeIO;
ProcessArgs;
today := CurrentDate();
IF date >= today THEN
WriteCard(date - today, 1); WriteLn;
ELSE
WriteString("Das Datum stammt aus der Vergangenheit.");
WriteLn;
END;
END DaysLeft.
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