diff options
Diffstat (limited to 'xsd-examples/cxx/parser/polyroot/README')
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/README | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/xsd-examples/cxx/parser/polyroot/README b/xsd-examples/cxx/parser/polyroot/README new file mode 100644 index 0000000..b431417 --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/README @@ -0,0 +1,56 @@ +This example shows how to handle the xsi:type attributes when it is used +on root elements. For general coverage of XML Schema polymorphism handling +in the C++/Parser mapping see the polymorphism example. + +The example consists of the following files: + +supermen.xsd + XML Schema which describes the "supermen" instance documents. + +person.xml +superman.xml +batman.xml + Sample XML instance documents. + +supermen-pskel.hxx +supermen-pskel.cxx + Parser skeletons generated by the XSD compiler from supermen.xsd using + the following command line: + + xsd cxx-parser --generate-polymorphic supermen.xsd + + Or if using Expat instead of Xerces-C++ as the underlying XML parser: + + xsd cxx-parser --xml-parser=expat --generate-polymorphic supermen.xsd + + Note the use of the --generate-polymorphic command line option. + +supermen-pimpl.hxx +supermen-pimpl.cxx + Parser implementations that print the XML data to STDOUT. + +driver.cxx + Driver for the example. It implements a custom document parser + that determines which XML Schema type is being parsed and uses + the corresponding parser implementation. The driver first + constructs a parser instance from all the individual parsers + found in supermen-pimpl.hxx. In then invokes this parser instance + to parse the input file. + +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++ -c supermen-pskel.cxx +c++ -c supermen-pimpl.cxx +c++ -c driver.cxx +c++ -o driver driver.o supermen-pskel.o supermen-pimpl.o -lxerces-c + +Or if using Expat as the underlying XML parser: + +c++ -o driver driver.o supermen-pskel.o supermen-pimpl.o -lexpat + +To run the example on the sample XML instance documents execute: + +./driver person.xml +./driver superman.xml +./driver batman.xml |