Copy JSON from SandBox to trunk

JSON/include/Poco/JSON/Parser.h

@@ -0,0 +1,140 @@
+//
+// Parser.h
+//
+// $Id$
+//
+// Library: JSON
+// Package: JSON
+// Module:  Parser
+//
+// Definition of the Parser class.
+//
+// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+//
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+#ifndef JSON_JSONParser_INCLUDED
+#define JSON_JSONParser_INCLUDED
+
+
+#include <istream>
+#include <sstream>
+
+#include "Poco/DynamicAny.h"
+#include "Poco/StreamTokenizer.h"
+
+#include "Poco/JSON/JSON.h"
+#include "Poco/JSON/Object.h"
+#include "Poco/JSON/Array.h"
+#include "Poco/JSON/Handler.h"
+
+namespace Poco
+{
+namespace JSON
+{
+
+class JSON_API Parser
+	/// A class for passing JSON strings or streams
+{
+public:
+
+	Parser();
+		/// Constructor
+
+
+	virtual ~Parser();
+		/// Destructor
+
+
+	void parse(const std::string& source);
+		/// Parses a string
+
+
+	void parse(std::istream& in);
+		/// Parses a JSON from the input stream
+
+
+	void setHandler(Handler* handler);
+		/// Set the handler
+
+	Handler* getHandler();
+		/// Returns the handler
+
+
+private:
+
+
+	const Token* nextToken();
+		/// Returns the next token
+
+
+	void readObject();
+		/// Starts reading an object
+
+
+	void readArray();
+		/// Starts reading an array
+
+
+	bool readRow(bool firstCall = false);
+		/// Reads a property value pair. Returns true when a next row is expected.
+
+
+	void readValue(const Token* token);
+		/// Read a value from the token
+
+
+	bool readElements(bool firstCall = false);
+		/// Read all elements of an array
+
+
+	StreamTokenizer _tokenizer;
+
+
+	Handler* _handler;
+};
+
+
+inline void Parser::parse(const std::string& source)
+{
+	std::istringstream is(source);
+	parse(is);
+}
+
+
+inline void Parser::setHandler(Handler* handler)
+{
+	_handler = handler;
+}
+
+
+inline Handler* Parser::getHandler()
+{
+	return _handler;
+}
+
+}} // Namespace Poco::JSON
+
+#endif // JSON_JSONParser_INCLUDED