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diff --git a/xsd-examples/cxx/tree/xpath/README b/xsd-examples/cxx/tree/xpath/README new file mode 100644 index 0000000..39f9c09 --- /dev/null +++ b/xsd-examples/cxx/tree/xpath/README @@ -0,0 +1,59 @@ +This example shows how to use the C++/Tree mapping together with XPath. +In particular, it shows how to execute an XPath query on the underlying +DOM document and then handle the result using the more convenient object +model representation. For more information on maintaining association +with the underlying DOM document, refer to Section 5.1, "DOM Association" +in the C++/Tree Mapping User Manual. + +You will need the XQilla library[1] which provides XQuery and XPath 2 +support on top of Xerces-C++ in order to build and run this example. + +[1] http://xqilla.sourceforge.net + +The example consists of the following files: + +people.xsd + XML Schema definition for a simple person record vocabulary. + +people.xml + Sample XML instance document. + +people.hxx +people.cxx + C++ types that represent the person record vocabulary and a set of + parsing functions that convert XML instance documents to a tree-like + in-memory object model. + + These files are generated by the XSD compiler from people.xsd using + the following command line: + + xsd cxx-tree people.xsd + +dom-parse.hxx +dom-parse.cxx + Definition and implementation of the parse() function that parses an + XML document to a DOM document. + +driver.cxx + Driver for the example. It first calls the above parse() function to + parse the input file to a DOM document using XQilla-provided DOM + Implementation with support for XPath 2. It then parses the DOM + document to the object model. Finally, it prepares and executes + an XPath query on the underlying DOM document and then handles + the result by getting back from the returned DOM nodes to object + model nodes. + +To compile and link the example manually from the command line we can use +the following commands (replace 'c++' with your C++ compiler name): + +c++ -DXSD_CXX11 -c people.cxx +c++ -DXSD_CXX11 -c dom-parse.cxx +c++ -DXSD_CXX11 -c driver.cxx +c++ -o driver driver.o people.o dom-parse.o -lxqilla -lxerces-c + +Note that we need to define the XSD_CXX11 preprocessor macro since the +source code includes libxsd headers directly. + +To run the example on the sample XML document execute: + +./driver people.xml |