filtskel.icn: Program skeleton for generic filter

July 16, 1994; Robert J. Alexander
This file is in the public domain.
Generic filter skeleton in Icon.

This program is not intended to be used as is -- it serves as a
starting point for creation of filter programs.  Command line
options, file names, and tabbing are handled by the skeleton.  You
need only provide the filtering code.

As it stands, filter.icn simply copies the input file(s) to
standard output.

Multiple files can be specified as arguments, and will be processed
in sequence.  A file name of "-" represents the standard input file.
If there are no arguments, standard input is processed.

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