Re: Archives

On Jul 15, 2005, at 7:11 AM, Matthias Hengartner wrote:

> Hello,
>  
> After the (quite successful) porting of the railMLEditor.app, I'm now 
> trying to port another (much more extensive) application from OpenStep 
> to GNUstep. First steps look promising, but now I'm stuck in a 
> (well-known) problem: I want to read (and later also write) 
> OpenStep-Archives on GNUstep.
> I had already a look at some prior discussions, and I'm not quite sure 
> about the current standings on this topic.
> I've also read about GMArchiver, which could be used instead of 
> NSArchiver. But how to use this exactly?
>  
>

The current progress you might be thinking of is with regards to Mac OS 
X keyed archiving. OpenStep doesn't have this - there is still the 
problem that these archives are binary and not documented.

GMArchiver and related files (in gnustep-gui/Model) would allow you to 
read the archives and write them into a plist-type format - but you 
would need to run this on an OPENSTEP machine). If that's possible, you 
could use it to translate all your archives into a more readable 
format, so that they could be used both in OPENSTEP and GNUstep.

Failing that, I think you're stuck trying to decode the OPENSTEP binary 
format to figure out how things are stored.