[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XPath and XPattern (was Re: More on tamingSAX)
Karl Waclawek wrote: > > > Uche Ogbuji wrote: > >>> There's also the question of context -- would the only context be the >>> stack, or do people hope to have access to left siblings as well? >> >> >> >> I'd say only the parent stack, or shallow but very wide documents become >> resource hogs. An extension mechanism could allow implementations to >> support sibling access, or perhaps that would be a matter of conformance >> levels (a la DOM or XAPI). > > > Why not leave this to the application to decide. > Just provide a hook for accessing context, but > don't make a decision what to provide. > Providing these hooks just on the parent stack > should be sufficient, because at the parent level > one can aggregate context as needed. This sounds too processing-model-specific. I guess I started it by saying "parent stack". Permit me to amend that to "ancestor axis". I don't think that in a spec that is supposed to be cross-platform, cross-platform, cross-toolkit, we can get away with specifying things in terms such as "put a hook here". We'd have to define context in a similar way to XPath's definition (though more restricted, naturally). -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://4Suite.org http://fourthought.com Use CSS to display XML - http://www.ibm.com/developerworks/edu/x-dw-x-xmlcss-i.html Full XML Indexes with Gnosis - http://www.xml.com/pub/a/2004/12/08/py-xml.html Be humble, not imperial (in design) - http://www.adtmag.com/article.asp?id=10286 UBL 1.0 - http://www-106.ibm.com/developerworks/xml/library/x-think28.html Use Universal Feed Parser to tame RSS - http://www.ibm.com/developerworks/xml/library/x-tipufp.html Default and error handling in XSLT lookup tables - http://www.ibm.com/developerworks/xml/library/x-tiplook.html A survey of XML standards - http://www-106.ibm.com/developerworks/xml/library/x-stand4/ The State of Python-XML in 2004 - http://www.xml.com/pub/a/2004/10/13/py-xml.html
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