Re: [xml] Parser error: html entities not defined
- From: Daniel Veillard <veillard redhat com>
- To: Liam R E Quin <liam holoweb net>
- Cc: xml <xml gnome org>
- Subject: Re: [xml] Parser error: html entities not defined
- Date: Tue, 4 Sep 2007 10:45:17 -0400
On Tue, Sep 04, 2007 at 10:19:18AM -0400, Liam R E Quin wrote:
On Tue, 2007-09-04 at 07:01 -0400, Daniel Veillard wrote:
On Tue, Sep 04, 2007 at 06:39:01AM -0300, Bruno Dilly wrote:
I'm trying to parse RSS with html entities, but I'm having the
following errors when it tries to parse the rss file:
Entity 'ntilde' not defined;
Entity 'iacute' not defined;
are the HTML entities defined in the RSS DTD ? if yes then you
need to ask to load the DTD. If no, then using them there is an error.
It's worse than that :-)
RSS requires HTML markup to be escaped in descriptions, so you have
to write things like
and the same for elements, <i>...</i> to get <i>...</i> into
an RSS feed.
A lot of RSS feeds are invalid.
By default libxml2 XML parser does not fetch the external subset of DTDs.
So the undeclared entities are an error but not a fatal error (since of
course they never set standalone="yes"). The fact they are invalid doesn't
bother me that much, but it seems in practice they are often not well-formed
and a lot of RSS readers don't use XML parsers to work around this. One
thing is sure, I won't encourage this trend...
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard | virtualization library http://libvirt.org/
veillard redhat com | libxml GNOME XML XSLT toolkit http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/
] [Thread Prev