1 files changed, 53 insertions, 0 deletions
diff --git a/xsd-examples/cxx/tree/messaging/protocol.xsd b/xsd-examples/cxx/tree/messaging/protocol.xsd
new file mode 100644
index 0000000..4a28ac3
--- /dev/null
+++ b/xsd-examples/cxx/tree/messaging/protocol.xsd
@@ -0,0 +1,53 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : cxx/tree/messaging/protocol.xsd
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+            xmlns:p="http://www.codesynthesis.com/protocol"
+            targetNamespace="http://www.codesynthesis.com/protocol">
+
+  <!-- types -->
+
+  <xsd:complexType name="account_t">
+    <xsd:sequence>
+      <xsd:element name="account" type="xsd:unsignedInt"/>
+    </xsd:sequence>
+  </xsd:complexType>
+
+  <xsd:complexType name="change_t">
+    <xsd:complexContent>
+      <xsd:extension base="p:account_t">
+        <xsd:sequence>
+          <xsd:element name="amount" type="xsd:unsignedInt"/>
+        </xsd:sequence>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <xsd:complexType name="balance_t">
+    <xsd:complexContent>
+      <xsd:extension base="p:account_t">
+        <xsd:sequence>
+          <xsd:element name="balance" type="xsd:unsignedInt"/>
+        </xsd:sequence>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <!-- request elements -->
+
+  <xsd:element name="balance" type="p:account_t"/>
+  <xsd:element name="withdraw" type="p:change_t"/>
+  <xsd:element name="deposit" type="p:change_t"/>
+
+  <!-- response elements -->
+
+  <xsd:element name="success" type="p:balance_t"/>
+  <xsd:element name="insufficient-funds" type="p:balance_t"/>
+
+</xsd:schema>