From: bbiker <renard@...>
Date: 2007-10-30T14:41:45+09:00
Subject: Re: jruby and case insensitive environment variables on win32

On Oct 29, 11:52 pm, Charles Oliver Nutter <charles.nut...@sun.com>
wrote:
> Martin DeMello wrote:
> > When converting a Win32/Ruby application to JRuby, I ran into an
> > interesting quirk - the Windows Ruby interpreter (1.8.6 from the
> > one-click installer) let me "get away" with whatever mix of upper and
> > lower case I liked when accessing environment variables (e.g.
> > ENV['UserProfile'], ENV['userprofile'], ENV["USERPROFILE"], etc),
> > which is consistent with the way Windows itself does it. JRuby seems
> > to follow the Unix model where UserProfile and USERPROFILE are two
> > separate variables.
>
> > I raise this here rather than filing a bug with the JRuby team because
> > I am unsure as to what the correct behaviour is - are JRuby
> > environment variables a property of the JVM, and only incidentally a
> > property of the underlying operating system that the JVM picked them
> > up from, or should they accurately return the same results that MRI
> > would have?
>
> In JRuby, we pull in whatever the system provides as an environment, and
> we don't do any magic to support case insensitivity. I'd like to know if
> 1.8.6 is doing something "extra" to support this or if it's just the way
> environment variables work on win32.
>
> FYI, it has already been reported as a bug, so don't worry about that.
>
> http://jira.codehaus.org/browse/JRUBY-1441
>
> Of course, if you'd like to try fixing it, we'd appreciate that too :)
>
> - Charlie- Hide quoted text -
>
> - Show quoted text -

Windows's environmental variables are case insensitive.

Hope's that helps.