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Re: atoms, molecules
- From: "Simon St.Laurent" <email@example.com>
- To: firstname.lastname@example.org
- Date: Thu, 19 Apr 2001 10:47:34 -0400
At 10:57 AM 4/19/01 +0200, Anders W. Tell wrote:
There is another mechanism which may be a part of a solution.
>I have ealier proposed to the XML schema group a mechanism where it is
>to handle "parsable encodings" such as XPath expressions and SVG paths in
>strings (attributes, etc.),
>In these cases are regular expressions not really sufficient because of
>complex parsing rules.
Is 'microparsing' something readily defined with a declarative unpacking
Or does it bind more tightly to a particular processing environment?
Regular expressions don't solve every problem, but I find them attractive
because of their relative independence from particular platforms and their
inclusion in XML Schema.
>What I proposed was a mechanism to annotate "compressed" attributes with
>XML representatation, ie a binding between string and a corresponding XML
>This means that XPath strings can be unpacked or tokenized into XML.
>However this leaves some problems: how should these specialized parser be
>identified and bound at runtime.
I'd think some kind of annotation mechanism might be able to help here -
sounds like the microparsers would just need identification and some kind
of infrastructure. It's not that different from what already happens in a
lot of applications, just abstracted a layer higher to become metadata
about a type.
Simon St.Laurent - Associate Editor, O'Reilly and Associates
XML Elements of Style / XML: A Primer, 2nd Ed.
XHTML: Migrating Toward XML
http://www.simonstl.com - XML essays and books