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- To: Carlos da Costa <carlos.dacosta@lbicon.co.uk>
- Subject: RE: [xml-dev] xml 2.0 - so it's on the way after all?
- From: Toni Uusitalo <toni.uusitalo@pan.nu>
- Date: Fri, 04 Feb 2005 19:33:49 +0200
- Cc: xml-dev@lists.xml.org
- In-reply-to: <1197C0671A039E4298626AFCCC1C30BB824DB2@stamps.pc.aspectgroup.co.uk>
- References: <1197C0671A039E4298626AFCCC1C30BB824DB2@stamps.pc.aspectgroup.co.uk>
At 18:50 4.2.2005, you wrote:
>I just tried it with MSXML 4 SP2 and it worked for me.
>I even succeeded transforming it with XSLT. (Although the document is boring
>- only having a "doc" element.)
Beware: I've patented that document; you cannot use that doc in productive
XSLT transformations ;-)
>Maybe you should check what version of MSXML your IE is using?
MSXML4 is installed said the sniffer (not my dog but one at the topxml site).
I noticed there's security update available for my IE, I'll install that
and see if that helps.
But my point was it isn't easy to write conformant parser when the DTD
parameter entities are concerned - it takes a few versions and a few SPs and
careful sniffing of program code ;-)
>Cheers
>Carlos
>
> > -----Original Message-----
> > From: Toni Uusitalo [mailto:toni.uusitalo@pan.nu]
> > Sent: Friday 04 February 2005 16:19
> > To: Bob Foster
> > Cc: xml-dev@lists.xml.org
> > Subject: Re: [xml-dev] xml 2.0 - so it's on the way after all?
> >
> >
> > At 02:48 4.2.2005, you wrote:
> >
> > >If there were to be an XML 2.0, one of the goals should be that any
> > >off-the-shelf parser generator can produce a parser for it. It's
> > >ridiculously hard to write a correct XML parser; it ought to be
> > >ridiculously easy.
> > >I also agree with whoever wrote that DTDs, validation and
> > macro expansion
> > >should be pulled out of the base specification entirely.
> > Hey, here's an
> > >idea: what you see is what you get.
> >
> > Somewhat relating to this, an example of how hard it is to get DTD
> > parameter entity expansion right; this is something I've
> > encountered when
> > writing my Parsifal parser:
> >
> > The following document is well-formed (and valid too but
> > that's not the
> > point) but very troublesome to parse for MSXML (IE6 crashes)
> > and Expat.
> > Works ok with RXP and Parsifal - haven't test others.
> >
> > You can test this with your browser in the link
> > http://www.saunalahti.fi/~samiuus/toni/xmlproc/parsifal_tests/
> > output_tests/output_PE1.xml
> >
> > Or just examine this:
> >
> > output_PE1.xml:
> > <!DOCTYPE doc SYSTEM "output_PE1.dtd"[]>
> > <doc/>
> >
> > output_PE1.dtd:
> > <!ENTITY % b "test">
> >
> > <!ENTITY % ws "">
> > <!ENTITY % e SYSTEM%ws;"output_PE1.ent">
> >
> > <!ENTITY % PE "%">
> > <!ENTITY%PE; s "%e;">
> >
> > <!ENTITY u "%s;">
> > <!ELEMENT doc ANY>
> > <!ATTLIST doc att CDATA #FIXED "&u;">
> >
> > output_PE1.ent:
> > %b;
> >
> > Quite evil document? not very "real world" one I guess but
> > well-formed
> > nevertheless.
> >
> >
> > with respect,
> > Toni Uusitalo
> >
> >
> >
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>
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with respect,
Toni Uusitalo
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