Merged emitter branch into trunk, changes r105:r151

include/emitter.h

@@ -0,0 +1,85 @@
+#pragma once
+
+#include "emittermanip.h"
+#include "ostream.h"
+#include <memory>
+#include <string>
+
+namespace YAML
+{
+	class EmitterState;
+	
+	class Emitter
+	{
+	public:
+		Emitter();
+		~Emitter();
+		
+		bool WriteToStream(std::ostream& out) const;
+		bool WriteToFile(const std::string& fileName) const;
+		
+		// state checking
+		bool good() const;
+		const std::string GetLastError() const;
+		
+		// global setters
+		bool SetStringFormat(EMITTER_MANIP value);
+		bool SetBoolFormat(EMITTER_MANIP value);
+		bool SetIntBase(EMITTER_MANIP value);
+		bool SetSeqFormat(EMITTER_MANIP value);
+		bool SetMapFormat(EMITTER_MANIP value);
+		bool SetIndent(unsigned n);
+		bool SetPreCommentIndent(unsigned n);
+		bool SetPostCommentIndent(unsigned n);
+		
+		// local setters
+		Emitter& SetLocalValue(EMITTER_MANIP value);
+		Emitter& SetLocalIndent(const _Indent& indent);
+		
+		// overloads of write
+		Emitter& Write(const std::string& str);
+		Emitter& Write(const char *str);
+		Emitter& Write(int i);
+		Emitter& Write(bool b);
+		Emitter& Write(float f);
+		Emitter& Write(double d);
+		Emitter& Write(const _Alias& alias);
+		Emitter& Write(const _Anchor& anchor);
+		Emitter& Write(const _Comment& comment);
+		
+	private:
+		enum ATOMIC_TYPE { AT_SCALAR, AT_SEQ, AT_BLOCK_SEQ, AT_FLOW_SEQ, AT_MAP, AT_BLOCK_MAP, AT_FLOW_MAP };
+		
+		void PreAtomicWrite();
+		bool GotoNextPreAtomicState();
+		void PostAtomicWrite();
+		void EmitSeparationIfNecessary();
+		
+		void EmitBeginSeq();
+		void EmitEndSeq();
+		void EmitBeginMap();
+		void EmitEndMap();
+		void EmitKey();
+		void EmitValue();
+		
+	private:
+		ostream m_stream;
+		std::auto_ptr <EmitterState> m_pState;
+	};
+	
+	// overloads of insertion
+	template <typename T>
+	inline Emitter& operator << (Emitter& emitter, T v) {
+		return emitter.Write(v);
+	}
+
+	template <>
+	inline Emitter& operator << (Emitter& emitter, EMITTER_MANIP value) {
+		return emitter.SetLocalValue(value);
+	}
+	
+	template <>
+	inline Emitter& operator << (Emitter& emitter, _Indent indent) {
+		return emitter.SetLocalIndent(indent);
+	}
+}