The new std.process is ready for review

[Vladimir Panteleev]

On Tuesday, 12 March 2013 at 21:39:47 UTC, Steven Schveighoffer 
wrote:
>> I'd be very interested to hear if you have a suggestion for a 
>> better way to do it, keeping in mind that there needs to be 
>> *some* way to clear the environment too.
>
> Sadly, no I don't.  I had hoped [] would allocate an empty AA, 
> but it fails to compile.
>
> Note that you can "hack" it by setting a single environment 
> variable which nobody will ever use.
>
> i.e. spawnProcess("blah.exe", ["_____":"_____"]);
>
> But that is really, really ugly.

How about this:

@property string[string] emptyEnvironment()
{
     string[string] result;
     result["a"] = "a";
     result.remove("a");
     assert(result && result.length == 0);
     return result;
}

(can be cached to avoid allocating each time)