Logo Logo
Hilfe
Hilfe
Switch Language to English

Schaffert, Dan; Meuss, Holger; Furche, Tim und Bry, François (2002): XPath: Looking Forward. EDBT 2002 Workshops XMLDM, MDDE, and YRWS, Prag, Tschechische Republik, 24. - 28. März 2002. Lecture Notes in Computer Science. Berlin u.a.: Springer. S. 109-127 [PDF, 276kB]

[thumbnail of Bry_17344.pdf]
Vorschau
Download (276kB)

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.

Dokument bearbeiten Dokument bearbeiten