From: Peter Schrammel <peter.schrammel@...>
Date: 2006-11-17T17:00:06+09:00
Subject: Re: popen, open3 problems

ara.t.howard@noaa.gov wrote:
...
>       i.puts 'v=8'
>       i.flush                              #   <<---

ok. i don't need this if I use syswrite (flush flushes only ruby buffers)

>       puts o.gets
>     end
> 
> 
>     harp:~ > cat a.pl
> 
>     $| = 1;                                #   <<---

yes! that's it. I knew there was some perl-guru-thing about it.


>     while ($line = <STDIN>) {
>       chomp($line);
>       if ($line eq "set_var") { &set_var;}
>       elsif ($line eq "quit") { exit 0;}
>     }
> 
>     sub set_var { $var=<STDIN>; chomp($var); print "set.$var\n"; }
> 
> 
>     harp:~ > ruby a.rb
>     set.v=8

thanks very much.