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Re: XPath and XPattern (was Re: More on taming SAX)

• To: Oleg Tkachenko <oleg@t...>
• Subject: Re: XPath and XPattern (was Re: More on taming SAX)
• From: Christian Nentwich <christian@s...>
• Date: Thu, 23 Dec 2004 22:50:22 +0000
• Cc: Michael Kay <mike@s...>, "'David Megginson'" <david.megginson@g...>, <xml-dev@l...>
• In-reply-to: <41CB29FA.8010201@t...>
• Organization: Systemwire
• References: <E1ChXnb-0004PJ-00@u...><41CB29FA.8010201@t...>
• Reply-to: Christian Nentwich <christian@s...>

Stop right now! :) This "streaming subset of XPath" is turning into a
permathread. There is one, it's called STXPath and it's part of STX:

http://stx.sourceforge.net/documents/spec-stx-20040701.html#stxpath

I'm sure somebody could take it and make it available standalone if
that was desired, for example by engineering out the required section
from one of the open source STX engines.

regards,
Christian

-------------------------------------
Christian Nentwich
Technical Director, Syste/\/\/ire

Semantic validation? Let's go...
http://www.systemwire.com
-------------------------------------

> Michael Kay wrote:

>> Uche: are your XPatterns full XSLT patterns? That is, can they include any
>> XPath expression within a predicate? Or are they more like the subset of
>> XPath used in XML Schema uniqueness constraints, which is designed for
>> serial on-the-fly evaluation and doesn't allow predicates at all?

> It would be really nice to have such streamable XPath subset strictly
> defined (and probably with different name). Many attempts to implement
> XPath in a streaming way, such as Microsoft's XPathReader [1] (which is
> actually used in Biztalk internally) are hardly widely usable primarily
> because of proprietary XPath subsetting.

> [1] http://workspaces.gotdotnet.com/xpathreader

• Follow-Ups:
  • Re: XPath and XPattern (was Re: More on tamingSAX)
    • From: Uche Ogbuji <Uche.Ogbuji@f...>

• References:
  • RE: XPath and XPattern (was Re: More on taming SAX)
    • From: "Michael Kay" <mike@s...>
  • Re: XPath and XPattern (was Re: More on tamingSAX)
    • From: Oleg Tkachenko <oleg@t...>

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