XPath evaluation method, XML document processing system and program using the same

摘要

To efficiently search an evaluation result of a plurality of XPath expressions with respect to a data file such as an XML document: an evaluation result of an XPath expression is obtained by generating a data structure with a redundant element by evaluating what common part or dependency has been omitted from a plurality of XPath expressions to be evaluated, and then the data structure is used with respect to a data file to be processed.