7/14/2023 0 Comments Xml notepad xpath![]() Argument Lists When Creating an XPATH Document This limitation causes slightly increased CPU usage as you process large numbers of documents in a loop. This works around a limitation in third-party software. If you are iterating through a large set of documents and evaluating XPath expressions for each of them, InterSystems recommends that you set the OREF for a document equal to null when you are done processing it, before you open the next document. This uses XPath syntax to express the path to that desired node. The node context specifies the context in which to evaluate the expression. For this method, you specify the node context and an expression to evaluate. Use the EvaluateExpression() method of your instance of % Opens in a new tab. This step parses the XML document, using a built-in XSLT processor. With any of these methods, you specify the input XML document as the first argument and receive an instance of % Opens in a new tab as an output parameter. To do so, use one of the following class methods: CreateFromFile(), CreateFromStream(), or CreateFromString(). To use InterSystems IRIS XML support to evaluate XPath expressions using an arbitrary XML document, you do the following:Ĭreate an instance of % Opens in a new tab. Overview of Evaluating XPath Expressions in InterSystems IRIS ![]() If these defaults are not correct, modify the XML declaration so that it specifies the character set actually used. If the character encoding is not declared, InterSystems IRIS® uses the defaults described in Character Encoding of Input and Output. The XML declaration of any XML document that you use should indicate the character encoding of that document, and the document should be encoded as declared.
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