The new std.process is ready for review

[Jonathan M Davis]

On Tuesday, February 26, 2013 08:08:33 Lars T. Kyllingstad wrote:
> What if the variable is set, but empty?  Is that very different
> from the situation where it doesn't exist at all?  In my opinion,
> when it comes to environment variables, no.

And yet, there _is_ a difference. I've dealt with code before that simply cared 
about whether an environment variable was set and not at all what it was set 
to. Regardless of whether that's desirable behavior, any program that needs to 
be compatible with a program that follows that behavior will need to be able 
to follow that behavior as well. So, if std.process is set up so that you 
can't tell the difference betwen an environment variable which hasn't been set 
and one that's been set to nothing, then that's a problem, even if it's not 
the most common case.

- Jonathan M Davis