XPath: Looking Forward [ Dan Olteanu, Holger Meuss, Tim Furche, François Bry ]

Citation

Dan Olteanu, Holger Meuss, Tim Furche, François Bry, XPath: Looking Forward, pp. 109-127, International Conference on Extending Database Technology — EDBT 2002 Workshop on XML-Based Data Management (XMLDM), Akmal B. Chaudhri, Rainer Unland, Chabane Djeraba, Wolfgang Lindner (Ed.), Lecture Notes in Computer Science, Springer-Verlag, Prague, Czech Republic, Lecture Notes in Computer Science, Vol. 2490, March 2002, 3540001301.

Descriptions

Abstract:

The location path language XPath is of particular importance for XML applications since it is a core component of many XML processing standards such as XSLT or XQuery. In this paper, based on axis symmetry of XPath, equivalences of XPath 1.0 location paths involving reverse axes, such as anc and prec, are established. These equivalences are used as rewriting rules in an algorithm for transforming location paths with reverse axes into equivalent reverse-axis-free ones. Location paths without reverse axes, as generated by the presented rewriting algorithm, enable efficient SAX-like streamed data processing of XPath.

Annotation:

Keywords: XPath 1.0_0.8;

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