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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Sv: Dissillusioned about interoperability.
How about XSLT ?
----- Original Message -----
From: Richard Lanyon <rgl@d...>
To: <xml-dev@i...>
Sent: Friday, October 08, 1999 5:32 PM
Subject: Re: Dissillusioned about interoperability.
> On Thu, 7 Oct 1999, Simon St.Laurent wrote:
> > At 05:13 PM 10/7/99 -0600, Kent Sievers wrote:
>
> > >A tool like, say, a markup language other than XML? One that only had one
> > >way to mark up a simple name/value pair? That is what we left behind.
>
> > We haven't left anything behind yet, not by a long run. What I'm talking
> > about is a tool that would let you map:
> >
> > everybody else's damn structures -> my structures
>
> You're going to need to do this with a transformation language of some
> sort - no other solution is going to be flexible enough to deal with the
> variety of formats in which data is likely to appear. I don't think this
> is a problem with XML, however, because I don't think specifying
> structures was the problem XML set out to answer. Indeed, a system
> rigorous enough to give only one layout for arbitrary data would probably
> be so complex that no-one would ever use it. The main advantages are:
>
> a) XML frees us from writing new parsers to accompany every new structure.
> b) XML is sufficiently familiar to anyone who's used HTML that it might
> actually catch on.
>
> The real problem is thus that writing transformations seems so painful,
> and that's really a fault with much of the current software available to
> do transformations. I'd like to think that XML Script (www.xmlscript.org)
> is a significant improvement in this field.
>
> > Mike Hatalski pointed out IBM's XML Translator Generator - it's one option,
> > though I'd like to see it given a prettier face.
> > http://www.alphaworks.ibm.com/aw.nsf/techmain/5F60964153C4274788256776006817AA
>
> The problem being that this is essentially a DTD-to-DTD mapper. Lots of
> XML "out there" in the real world is going to be DTD-less or have very
> underspecified DTDs. More importantly, you're often going to find that you
> want your transformation to depend on the content/attributes of an
> element, rather than the element type. This is certainly the case with
> <object type="myType">content</object>
> Where you need to look at the `type' attribute to do your transformation.
> This is comparatively straightforward in XML Script, where you can do
> things like:
> <_if test="object.type == myType"></_if>
> or
> <_foreach object="object{.type == myType}"></_foreach>
>
> --
> Richard Lanyon (Software Engineer) | "The medium is the message"
> XML Script development, | - Marshall McLuhan
> DecisionSoft Ltd. |
>
>
>
>
>
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