From: Paul Brannan <paul@...>
Date: 2002-02-08T03:10:05+09:00
Subject: Re: Class variable bug

On Fri, Feb 08, 2002 at 02:53:47AM +0900, Sean Chittenden wrote:
> > First of all, if you put '-v' option to the interpeter, it warns you
> > about class variables, that means it might not work as you expected.
> 
> Is -v any different from -w (other than printing $VERSION)?  -sc

Mostly, no.  Both will set ruby_verbose:

          case 'v':
            if (verbose) {
                s++;
                goto reswitch;
            }
            ruby_show_version();
            verbose = 1;
          case 'w':
            ruby_verbose = Qtrue;
            s++;
            goto reswitch;

But the former will not allow you to redirect input to the ruby
interpreter:

    if (!e_script && argc == 0) { /* no more args */
        if (verbose) exit(0);
        script = "-";
    }

I suppose this is so that you can type ruby -v and get the version.

Paul