From: William James <w_a_x_man@...>
Date: 2008-09-25T08:54:52+09:00
Subject: Re: Strange ruby problem

On Sep 24, 9:18 am, "christofore...@gmail.com"
<christofore...@gmail.com> wrote:
> So i've cut the program down to about 4 lines to give the idea of
> whats going on:
>
> num = ARGV[0]
> num2 = ARGV[1]
> puts " #{num} #{num2} \n"
> line = gets
>
> if i give the program some input from the command line it fails and
> sais " gets: No such file or directory -1"
> yet if i supply no input the program goes straight to gets. This seems
> fairly strange to me. Though when I did this:
>
> num = ARGV[0]
> num2 = ARGV[1]
> puts " #{num} #{num2} \n"
> STDOUT.flush
> line = STDIN.gets
>
> everything works normal. Why is this and whats going on? Thanks in
> advance
>
> Sincerely,
> Chris Dancy

Arguments on the command line are assumed
to be files to be read by "gets".

E:\>echo First line of file > temp.txt

E:\>ruby -e "p gets" temp.txt
"First line of file \n"

Correct programs:

num = ARGV.shift
num2 = ARGV.shift
puts " #{num} #{num2}"
line = gets


num = ARGV[0]
num2 = ARGV[1]
puts " #{num} #{num2}"
line = $stdin.gets