This example shows how to use type customization to parse and serialize a specific attribute that is matched by a wildcard (anyAttribute). The example achieves this by customizing the type to include the data members and accessors/modifiers that represent the attribute as well as the parsing constructor and serialization operator where the attribute value is extracted from and inserted back to DOM, respectively. For more information on the C++/Tree mapping customization see the C++/Tree Mapping Customization Guide[1]. [1] http://wiki.codesynthesis.com/Tree/Customization_guide The example consists of the following files: wildcard.xsd XML Schema definition for simple data type and element. wildcard.xml Sample XML instance document. wildcard.hxx wildcard.ixx wildcard.cxx C++ types that represent the given vocabulary, a set of parsing functions that convert XML instance documents to a tree-like in-memory object model, and a set of serialization functions that convert the object model back to XML. These are generated by XSD from wildcard.xsd with the --custom-type option in order to customize the data type. wildcard-custom.hxx Header file which defines our own data class by inheriting from the generated data_base. It is included at the end of wildcard.hxx using the --hxx-epilogue option. wildcard-custom.cxx Source file which contains the implementation of our data class. driver.cxx Driver for the example. It first calls one of the parsing functions that constructs the object model from the input file. It then prints the data to STDERR, including the extra attribute. Finally, the driver serializes the object model back to XML. To run the example on the sample XML instance document simply execute: $ ./driver wildcard.xml