Re: [xml] Potential wrong usage of xmlIsID() in tree.c

On Fri, Feb 24, 2006 at 07:04:46AM -0500, Rob Richards wrote:
Daniel Veillard wrote:
On Fri, Feb 24, 2006 at 06:33:54AM -0500, Rob Richards wrote:
Based on a DTD or the xml:id spec, an attribute must have an element to 
be considered an ID.

 True for DTD as far as I know, but I don't see where you get this
from the xml:id spec, both the processing section and the section
about application interface drop any requirement at the containing
element level:
Doesn't mean that the element must 
be present?

The following information items must be present in the input infosets to 
enable correct processing:

  *   Element Information Items with attributes property.

 True, but it's a generic requirement from xml:id to Infoset, i.e.
that the toolkit must be able to provide element informations to 
garantee that xml:id can work on top of it.
It doesn't mean that if an attribute is standalone at some point
then it's idness should be asserted, but that for the spec as a whole
to function (i.e. being able to use xml:id in a framework) then
the infoset framwork must support element informations. I still
think the property of the attribute in that case is not dependant
of the element presence, but we can't garantee it will work in all
frameworks, and for example an xpath id() query won't ve able to find


Daniel Veillard      | Red Hat
veillard redhat com  | libxml GNOME XML XSLT toolkit | Rpmfind RPM search engine

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