From: CT <demerzel@...>
Date: 2004-07-13T15:06:07+09:00
Subject: Re: gets

On Tue, 13 Jul 2004 14:47:22 +0900, News Groups <ram_naga@yahoo.com> wrote:
> Hello All,
> 
>     I am new to Ruby Language. I just want to read a string using 'gets'
> function, but am getting the below error message.

Welcome!

>    ERROR MESSAGE:  `gets': Bad file descriptor (Errno::EBADF)

You must be trying to run that code in the SciTE editor. Try running
the program on the command line.  I remember getting this sort of an
error when I tried running a similar thing from SciTE.

>     Can anybody please help me in solving this problem. Is it required to
> require any file to use 'gets' function.
> 
> Thanks in Advance,
> 
> Thanks & Regards,
> Mohan
> 
> 
Hope that helps, and no problem.

Also, here's the ri doc for gets: (try the command 'ri' to get
documentation on methods and such)

C:\Files\Ruby>ri Kernel.gets
------------------------------------------------------------ Kernel#gets
     gets(separator=$/)    => string or nil
------------------------------------------------------------------------
     Returns (and assigns to +$_+) the next line from the list of files
     in +ARGV+ (or +$*+), or from standard input if no files are present
     on the command line. Returns +nil+ at end of file. The optional
     argument specifies the record separator. The separator is included
     with the contents of each record. A separator of +nil+ reads the
     entire contents, and a zero-length separator reads the input one
     paragraph at a time, where paragraphs are divided by two
     consecutive newlines. If multiple filenames are present in +ARGV+,
     +gets(nil)+ will read the contents one file at a time.

        ARGV << "testfile"
        print while gets

     _produces:_

        This is line one
        This is line two
        This is line three
        And so on...

     The style of programming using +$_+ as an implicit parameter is
     gradually losing favor in the Ruby community.