system IDs and URIs

[Lauren Wood <lauren@softquad.com>]

On 17 May 2001, Norman Walsh wrote:

> / Lauren Wood <lauren@softquad.com> was heard to say:
> | John raises an issue: why we treat system IDs and other URIs separately.

> We treat them differently because system identifiers and URIs are
> different.  While it's true that all system identifiers must be URIs,
> the converse is not true. More to the point, the XML REC speaks of
> public and system identifiers, TR9401 catalogs speak of public and
> system identifiers, and users speak of public and system identifiers.

To me, the main reason for having generic URIs is to allow mapping 
of items such as stylesheets from the stylesheet PI, which isn't 
defined as a system identifier, and potentially other URIs which 
also aren't defined as system identifiers. I would not like to lose 
this ability.


Lauren