From: sebastien.rigaud@... (Sebby)
Date: 2002-11-05T23:22:34+09:00
Subject: IO.pos: does it work !? [newbie question...]

Hi,
Could you please tell me why the code:
> f = IO.popen("sqlplus -s system/manager@DAS1", "r+")
> f.write("select 'and now, the drive-by...' from dual;\n")
> f.write("exit\n")
> 
> # following OK:
> while car = f.getc and car != nil
>   putc car
>   puts " [eof: #{f.pos}]\n"
> end

always returns me the value '-1' when 'f.pos' is called ?
Should I not see an increasing number ?? I see lines like:
> ...
> n [eof: -1]
> o [eof: -1]
> w [eof: -1]
> , [eof: -1]
>   [eof: -1]
> t [eof: -1]
> h [eof: -1]
> ...

Thanks...
Seb