[PD-dev] pure-data CVS

mark mark at junklight.com
Sat Aug 10 20:15:03 CEST 2002

One solution would be to have a default namespace - which
everything is currently in.

New name spaces could be used with a new name space box - different
from objects,numbers and messages - perhaps a box with rounded
corners or something - this would be a "use namespace" box - where
there was confusion you could use a qualified ("mylib::guass") name.
Another kind of box could be used to give the namespace of the patch
itself. The default namespace would be included in all patches I guess
so that pd could be used as it without any namespaces...

This could perhaps even link into the -lib command either replacing it
or allowing a namespace to be given in the lib command

	-lib mylibpath mynamespace

where all the objects in the lib where forced into the namespace.

anyway just some thoughts


-----Original Message-----
From: Miller Puckette [mailto:mpuckett at man104-1.ucsd.edu]
Sent: 10 August 2002 18:27
To: Olaf Matthes
Cc: pd-list
Subject: Re: [PD-dev] pure-data CVS

Hi Olaf et al,

I think that putting the indocator in the object box would cause misery,
because whenever a new name clash arose everyone would have to go edit
all their patches ... worse yet, what if two libraries are merged or for
some other reason the name of a library changes...

So, it would be better somehow to be able to specify where to find specific
classes as part of Pd's run-time environment, similarly to how "path" now
works.  This isn't a real solution either though... what if you're using
an abstraction which assumes a different "gauss" from that of the calling
patch.  I don't know what to offer for that scenario!


> I think we should try to find a way  to avoid nameclashes! Taking the
> example, someone might only be using the maxlib library and thus [gauss]
> perfectly allright. Let's say someone else is running Pd with footils
> there one would get gauss from footils... Not what we want, I guess!
> On the other hand, I think, it would be rather easy to implement a
> that tell's pd from which library to load an object from when typing
> [libraryname.objectname]. This could be used to force Pd to use gauss from
> maxlib, not from footils in case both are present. But, right, this makes
> boxes much longer.
> BTW, what does Pd right now if there are two identical objects? Does the
one win
> that is loaded into Pd first? (I gues the order is Pd core objects ->
> -> single externals -> abstractions ?)
> > I'm not sure,
> > how a "using namespace maxlib" could be implemented or be useful in
> > the PD programming language.
> We allready have a similar thing when specifying which library to load. I
> see any differences here.
> I think the best - and most difficult to implement - way would be to
> objects as usual but to save information about the libraries / namespace
> (invisibly) in the pd patch. In case one of the libraries is missing on
> machine, one would get an error message instead of an object from a wrong
> library.
> But then we still need a mechanism to force Pd to use a special library.
> Olaf

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