1 files changed, 73 insertions, 0 deletions
diff --git a/yaml-cpp/src/contrib/graphbuilderadapter.h b/yaml-cpp/src/contrib/graphbuilderadapter.h
new file mode 100755
index 00000000..3ef8ab6c
--- /dev/null
+++ b/yaml-cpp/src/contrib/graphbuilderadapter.h
@@ -0,0 +1,73 @@
+#ifndef GRAPHBUILDERADAPTER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+#define GRAPHBUILDERADAPTER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+
+#if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
+#pragma once
+#endif
+
+#include <cstdlib>
+#include <map>
+#include <stack>
+#include "yaml-cpp/eventhandler.h"
+#include "yaml-cpp/contrib/anchordict.h"
+#include "yaml-cpp/contrib/graphbuilder.h"
+
+namespace YAML
+{
+  class GraphBuilderAdapter : public EventHandler
+  {
+  public:
+    GraphBuilderAdapter(GraphBuilderInterface& builder)
+    : m_builder(builder), m_pRootNode(NULL), m_pKeyNode(NULL)
+    {
+    }
+    
+    virtual void OnDocumentStart(const Mark& mark) {(void)mark;}
+    virtual void OnDocumentEnd() {}
+    
+    virtual void OnNull(const Mark& mark, anchor_t anchor);
+    virtual void OnAlias(const Mark& mark, anchor_t anchor);
+    virtual void OnScalar(const Mark& mark, const std::string& tag, anchor_t anchor, const std::string& value);
+    
+    virtual void OnSequenceStart(const Mark& mark, const std::string& tag, anchor_t anchor);
+    virtual void OnSequenceEnd();
+    
+    virtual void OnMapStart(const Mark& mark, const std::string& tag, anchor_t anchor);
+    virtual void OnMapEnd();
+    
+    void *RootNode() const {return m_pRootNode;}
+  
+  private:
+    struct ContainerFrame
+    {
+      ContainerFrame(void *pSequence)
+      : pContainer(pSequence), pPrevKeyNode(&sequenceMarker)
+      {}
+      ContainerFrame(void *pMap, void* pPrevKeyNode)
+      : pContainer(pMap), pPrevKeyNode(pPrevKeyNode)
+      {}
+      
+      void *pContainer;
+      void *pPrevKeyNode;
+      
+      bool isMap() const {return pPrevKeyNode != &sequenceMarker;}
+    
+    private:
+      static int sequenceMarker;
+    };
+    typedef std::stack<ContainerFrame> ContainerStack;
+    typedef AnchorDict<void*> AnchorMap;
+    
+    GraphBuilderInterface& m_builder;
+    ContainerStack m_containers;
+    AnchorMap m_anchors;
+    void *m_pRootNode;
+    void *m_pKeyNode;
+    
+    void *GetCurrentParent() const;
+    void RegisterAnchor(anchor_t anchor, void *pNode);
+    void DispositionNode(void *pNode);
+  };
+}
+
+#endif // GRAPHBUILDERADAPTER_H_62B23520_7C8E_11DE_8A39_0800200C9A66