[DAS2] hrefs and xml:base

[Lincoln Stein]

On Wednesday 04 May 2005 19:55, Ed Erwin wrote:
> Andrew Dalke wrote:
> > In a related topic, the TYPES example we have says
> >
> > <TYPES
> >      xmlns="http://www.biodas.org/ns/das/genome/2.00"
> >      xmlns:xlink="http://www.w3.org/1999/xlink"
> >      xmlns:bg="http://www.bioperl.org/biographics/properties"
> >      xmlns:das="http://www.biodas.org/ns/das/genome/2.00"
> >      xml:base="http://www.wormbase.org/das/genome/volvox/1/type/">
> > ...
> >     <PROP key="bg:glyph"     value="box" />
> >     <PROP key="bg:bgcolor"   value="white" />
> >     <PROP key="bg:fgcolor"   value="black" />
> >     <PROP key="bg:key"       value="tRNAs" />
> >     <PROP key="bg:citation"  value="tRNA predictions made using Sean
> > Eddy's tRNAscan program." />
> >     <PROP key="bg:fontcolor" value="slateblue" />
> >     <PROP key="bg:height"    value="3" />
> >
> > Is the "bg" in the XML namespace "bg" supposed to be inserted
> > into the key name as a string?  If so, how?  Using universal
> > names ( http://www.jclark.com/xml/xmlns.htm ) like
> >  "{http://www.bioperl.org/biographics/properties}height"
> >
> > Or is the xmlns:bg definition there in error?
>
> I also wondered about this.
>
> I assumed that the "bg:" is a mistake, because later there is an example
> of this feature type request:
>
>   http://www.wormbase.org/das/genome/volvox/1/type/tRNAscan/citation
>
> Here, ".../citation" is used, rather than ".../bg:citation", but it is
> my understanding that the <PROP> key is supposed to literally map to the
> name used in constructing that type request URL.
>
>
> I have two other question/comments on that document (
>
> http://biodas.org/documents/das2/das2_get.html ):
>  > <FORMAT>   (zero or more)
>  >  indicates which representations are available for objects
>  >  within the given namespace.
>
> Does this mean *all* objects in the given namespace will be available in
> *all* of the given format ? or that *some* will be available in each of
> the listed formats ?

All objects in the given namespace will be available in all of the given 
formats.

Lincoln