Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.postscript > #3170

Re: Named Resources

Show all headers | View raw

Op woensdag 25 september 2013 00:19:43 UTC+2 schreef luser droog:
> I've spent the last few weeks trying to wrap my head 
> around how to implement Named Resources. I'm just going
> to talk about what I think I know. Please correct any 
> mistakes!
> 
> Named Resources exist in up to 3 places at any given time
> while "part of the system".
> 
>   * in a filesystem directory
>   * in a data structure in local vm
>   * in a data structure in global vm
> 
> So, I'm going to create 2 data structures, 
> as a rough start:
> 
> true setglobal
> globaldict begin
> /globalresourcedict <<
>     /Category <<
>     >>  
>     /Generic <<
>     >>  
>     /ProcSet <<
>     >>  
> >> def 
> end
> 
> false setglobal
> userdict begin
> /localresourcedict <<
>     /Encoding <<
>         /StandardEncoding [ ] 
>         /ISOLatin1Encoding [ ] 
>     >>  
> >> def 
> end
> 
> I still don't understand Category and Generic. :(




How do you handle the local and global VM?

The red book states: 
"The resources dictionary should take care of local and global VM resources".

Ghostscript comments say:

% The PostScript manual says that each category must
% manage global and local instances separately.  However, objects in
% global VM other than systemdict can't reference objects in local VM."

Now how is it possible to manage both local and global VM in a single dictionary (the resources dictionary) ?

Is it possible to explain this as I'm confused with the local/global VM in combination with Named Resources... how does that work together?

Back to comp.lang.postscript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Named Resources luser- -droog <mijoryx@yahoo.com> - 2013-09-24 15:19 -0700
  Re: Named Resources John Deubert <john@acumentraining.com> - 2013-09-27 07:31 -0700
    Re: Named Resources luser- -droog <mijoryx@yahoo.com> - 2013-09-29 22:32 -0700
  Re: Named Resources John Deubert <john@acumentraining.com> - 2013-09-27 07:44 -0700
  Re: Named Resources John Deubert <john@acumentraining.com> - 2013-09-27 07:49 -0700
  Re: Named Resources John Deubert <john@acumentraining.com> - 2013-09-27 08:44 -0700
  Re: Named Resources wst wst <wouter_staelens@hotmail.com> - 2017-08-29 02:02 -0700
    Re: Named Resources luser droog <luser.droog@gmail.com> - 2017-08-29 19:25 -0700
    Re: Named Resources Carlos <carlos@cvkm.cz> - 2017-08-30 19:24 +0200

csiph-web