Command line

["Andreas" <andreasv@telia.com>]

Hello

In a part of a program i'm writing, i need to read each row in a file and
check if the format is what i want it to be. I use a procedure (that takes
no arguments) to check if the format is OK. This procedure shall raise an
error if the format is bad, but will not handle the error; the procedure
that calls this procedure is supposed to do that.
I need to write the file name in the command line when i start my program.

To clear up the difficulties:

First i start the program by typing

myprog < data.txt

Then the main procedure runs, and calls the format check procedure, once for
each row in the file. If the format check procedure raised an error; handle
it in the main function (once error check for each call to the format check
procedure).

I've got a 500+ pages ADA programming book, but it doesn't help. I really
can't find what i'm looking for there.

Thanks in advance,

/Andreas