METHOD AND SYSTEM FOR XPATH IMPLEMENTATION

摘要

The present invention provides a new programming language (DPL) for performing XPath expression commands as part of an XML processing module. The DPL command languages themselves are used for maintaining internal states which represent the updated location and result values of the querying and traversing process through the XML document. Thus, the memory allocated for the program commands is the only memory required for executing the XPath expression. The DPL languages command performs an atomic step, which is part of the XPath expression, and its results represent a pointer to respective node of the XML structure or its values. The results are stored within the command memory and are used for performing the next DPL command or providing the output value for the XML processing module.