[Ipe-discuss] Checking HOSTNAME in an ipelet

[Dmitriy Morozov]

>> if os.getenv("HOSTNAME") == "cole" then
>
> Ipelets run in a protected environment.
>
> Use _G.os.getenv to access the getenv function.

_G.os.getenv("HOSTNAME") returned nil, whereas from within Lua
interpreter it returns the actual hostname.