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Re: [xml] Adding pre-defined namespaces

On Wed, Oct 05, 2005 at 03:41:22PM -0700, Eric Seidel wrote:


On Oct 5, 2005, at 3:14 PM, Daniel Veillard wrote:


On Mon, Oct 03, 2005 at 12:45:33AM -0700, Eric Seidel wrote:

Another example is when parsing document fragments for things such as
setInnerHTML in an xhtml context...  There we need to build up a
"namespace stack" representing the current document context before
doing the actual parse.


 I don't understand, either it's XHTML in which case it is XML
and an XML parser should work or it's not. Trying to parse XML island
in non well-formed XML'like HTML opens the door to so many error case
that loosing the namespace sounds just liek a small side effect.


As far as I understand, this is completely valid javascript + xhtml,  
which we'd like to support (and I do currently, through some of my  
own hacks):

<html xmlns="http://www.w3.org/1999/xhtml"; xmlns:svg="http:// 
www.w3.org/2000/svg">
<script type="text/javascript">
<![CDATA[
    var e = document.getElementById('test');
    e.innerHTML = '<svg:svg></svg:svg>';
}
]]>
</script>
<body>
<div id="test"/>
</body>
</html>

NOTE: setting innerHTML in an xhtml context expects an xmlfragment,  
not an html one.  Bad naming, I know.  :)


  Okay, I understand better, one case of use of the namespace from the PCDATA
and not from the markup itself... nasty :-)


Unfortunately use of the libxml SAX2 parser for this "setInnerHTML"  
xml parsing barfs due to the fact that the xml fragment we're parsing  


  It should complain but still produce a tree though.


does not contain all of the necessary namespace definitions.  Yet, as  
far as I know, this the above code should be valid, since the xml  
fragment should be evaluated in the context of the document.

Currently I support this

Thoughts?


  This is a bit far stretched IMHO, but I understand, maybe I can add a small 
API to add in-scope namespace like that, I find that slightly disturbing though
the parsing really should be context free ...

Daniel

-- 
Daniel Veillard      | Red Hat Desktop team http://redhat.com/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
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