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+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