Comments, parsers, XPointers

Chris Maden crism at ora.com
Wed May 20 19:27:41 BST 1998


[John E. Simpson]
> From previous (sometimes contentious) discussions on this list, I
> gather that there's no provision in SAX for passing document <!--
> comments --> to a downstream application.
> 
> The XPointer WD, production 12, allows for relative addressing by
> node type (element, PI, and so on), *including* comments.
> 
> Does the downstream invisibility of comments imply that a URL like
> this will always fail?
> 	somedoc.xml#child(1,#comment)
> 
> Thanks for any insights,

Insight: XML != SAX.

A purely SAX implementation will not see comments, so an XPointer
implementation based on it will fail with that pointer.

However, a different XML parser may still have the comments, and an
XPointer based on it may well find them.  A complete XPointer
implementation would need to have access to the comments, though I'm
not entirely sure what the purpose would be (except possibly for
editing applications).

-Chris
-- 
<!NOTATION SGML.Geek PUBLIC "-//Anonymous//NOTATION SGML Geek//EN">
<!ENTITY crism PUBLIC "-//O'Reilly//NONSGML Christopher R. Maden//EN"
"<URL>http://www.oreilly.com/people/staff/crism/ <TEL>+1.617.499.7487
<USMAIL>90 Sherman Street, Cambridge, MA 02140 USA" NDATA SGML.Geek>

xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)




More information about the Xml-dev mailing list