[Ipe-discuss] Checking HOSTNAME in an ipelet

[Otfried Cheong]

On 11/09/2010 08:47 AM, Dmitriy Morozov wrote:
>>> 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.

Perhaps because you ran lua from a shell that sets HOSTNAME, and Ipe is 
not run from the shell?

I don't know what your system is like, but on my Ubuntu system there is 
no HOSTNAME environment variable.

I guess Ipe could provide the screen geometry to the lua environment, 
then you wouldn't have to play such tricks.  Or set a dedicated 
environment variable (IPEWINDOWSIZE) on the machines where you want the 
window to be big?

Otfried