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From: allbery@ncoast.UUCP (Brandon S. Allbery)
Newsgroups: comp.sys.ibm.pc
Subject: Turbo Pascal vs. the Input standard file
Message-ID: <2575@ncoast.UUCP>
Date: Sat, 30-May-87 20:43:28 EDT
Article-I.D.: ncoast.2575
Posted: Sat May 30 20:43:28 1987
Date-Received: Tue, 2-Jun-87 05:15:47 EDT
Reply-To: allbery@ncoast.UUCP (Brandon S. Allbery)
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 35

I'm trying to write a program which will read standard input or files named
on the command line.  (It's a program to expand tabs and formfeeds for my
DuMbPrinter-105.)  The main block seemed simple enough:

begin
  if ParamCount = 0 then
    Process(Input)
  else
    for arg := 1 to ParamCount do
      begin
        Assign(Infile, ParamStr(arg));
        Reset(Infile);
        Process(Infile);
        Close(Infile)
      end
end.

BUT -- My Turbo Pascal (3.01A) doesn't seem to recognize Input as a file.  If
I leave it undeclared, I get a compile error `unknown identifier or syntax
error'; if I declare it, I get I/O error 02 (file not reset).

Is the standard input file available as a file variable?  I'd rather not have
two versions of the Process procedure, one for standard input and one for a
file.

Thanks in advance,
++Brando
-- 
Copyright (C) 1987 Brandon S. Allbery.  Redistribution permitted only if the
	redistributor permits further redistribution.
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