International Business Machines Corporation

Scott D DeWitt

Brad Byer Topol

Masahiro Hori

Mari Abe

An anchoring method for generating an XPath expression. The method can include identifying a stable anchor in the transcodable markup along an axis shared by the selected node. An XPath expression can be generated for the stable anchor. Subsequently, an offset between the stable anchor and the selected node can be computed. Finally, the XPath expression for the stable anchor and the offset can be concatenated, the concatenation forming the XPath expression for the selected node.

Anchoring method for computing an XPath expression

A method and system for generating robust XPath expressions for a selected node in transcodable markup. The system of the invention can include a set of differing XPath expression generators; an interface through which at least one of the XPath expression generators can be selected; and, an XPath generator processor configured to apply each of the selected XPath expression generators to the selected node in the transcodable markup to produce a redundant set of robust XPath expressions configured to identify the selected node. Notably, the system also can include an XPath resolution processor. The XPath resolution processor can resolve each XPath expression in the redundant set. The resolutions, in turn, can identify a set of candidate nodes, the XPath resolution processor identifying the selected node from among the set of candidate nodes based upon the XPath expressions resolving to the selected node more than any other node in the set of candidate nodes.

Selectable methods for generating robust XPath expressions

A system and method for generating and processing robust XPath expressions. The system can include two or more differing XPath generators, at least one of the XPath generators producing at least two XPath expressions for a selected node, the produced XPath expressions forming a redundant set of robust XPath expressions configured to identify the selected node. The system further can include an XPath resolution processor, the XPath resolution processor resolving each XPath expression in the redundant set, the resolutions identifying a set of candidate nodes, the XPath resolution processor identifying the selected node from among the set of candidate nodes based upon the XPath expressions resolving to the selected node more than any other node in the set of candidate nodes.

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Cary, NC, United States of America

Scott D DeWitt