Support for schema evolution using substitution groups

New examples: hybrid/evolution/ignore and hybrid/evolution/passthrough.

1 files changed, 51 insertions, 0 deletions

diff --git a/examples/cxx/hybrid/evolution/passthrough/unknown-type.hxx b/examples/cxx/hybrid/evolution/passthrough/unknown-type.hxx
new file mode 100644
index 0000000..c3e544c
--- /dev/null
+++ b/examples/cxx/hybrid/evolution/passthrough/unknown-type.hxx
@@ -0,0 +1,51 @@
+// file      : examples/cxx/hybrid/evolution/passthrough/unknown-type.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#ifndef UNKNOWN_TYPE_HXX
+#define UNKNOWN_TYPE_HXX
+
+#include "xml.hxx"
+
+namespace transform
+{
+  // Customized unknown_type. We add members that store the raw XML
+  // representation of an unknown transformation as well as the parsed
+  // element name and namespace from the substitution group.
+  //
+  class unknown_type: public unknown_type_base
+  {
+  public:
+    unknown_type ();
+
+    const xml::qname&
+    element_name () const
+    {
+      return name_;
+    }
+
+    void
+    element_name (const xml::qname& n)
+    {
+      name_ = n;
+    }
+
+    const xml::element&
+    content () const
+    {
+      return content_;
+    }
+
+    xml::element&
+    content ()
+    {
+      return content_;
+    }
+
+  private:
+    xml::qname name_;
+    xml::element content_;
+  };
+}
+
+#endif // UNKNOWN_TYPE_HXX