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/*
  Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.

  The MySQL Connector/C++ is licensed under the terms of the GPLv2
  <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
  MySQL Connectors. There are special exceptions to the terms and
  conditions of the GPLv2 as it is applied to this software, see the
  FLOSS License Exception
  <http://www.mysql.com/about/legal/licensing/foss-exception.html>.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published
  by the Free Software Foundation; version 2 of the License.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#ifndef _SQL_STRING_H_
#define _SQL_STRING_H_

#include <string>
#include "build_config.h"
#include <iostream>

namespace sql
{
	class CPPCONN_PUBLIC_FUNC SQLString
	{
		std::string realStr;

	public:
#ifdef _WIN32
        //TODO something less dirty-hackish.
        static const size_t npos = static_cast<std::string::size_type>(-1);
#else
		static const size_t npos = std::string::npos;
#endif

		~SQLString() {}

		SQLString() {}

		SQLString(const SQLString & other) : realStr(other.realStr) {}

		SQLString(const std::string & other) : realStr(other) {}

		SQLString(const char other[]) : realStr(other) {}

		SQLString(const char * s, size_t n) : realStr(s, n) {}

		// Needed for stuff like SQLString str= "char * string constant"
		const SQLString & operator=(const char * s)
		{
			realStr = s;
			return *this;
		}

		const SQLString & operator=(const std::string & rhs)
		{
			realStr = rhs;
			return *this;
		}

		const SQLString & operator=(const SQLString & rhs)
		{
			realStr = rhs.realStr;
			return *this;
		}

		// Conversion to st::string. Comes in play for stuff like std::string str= SQLString_var;
		operator const std::string &() const
		{
			return realStr;
		}

		/** For access std::string methods. Not sure we need it. Makes it look like some smart ptr.
			possibly operator* - will look even more like smart ptr */
		std::string * operator ->()
		{
			return & realStr;
		}

		int compare(const SQLString& str) const
		{
			return realStr.compare(str.realStr);
		}

		int compare(const char * s) const
		{
			return realStr.compare(s);
		}

		int compare(size_t pos1, size_t n1, const char * s) const
		{
			return realStr.compare(pos1, n1, s);
		}

		const std::string & asStdString() const
		{
			return realStr;
		}

		const char * c_str() const
		{
			return realStr.c_str();
		}

		size_t length() const
		{
			return realStr.length();
		}

		SQLString & append(const std::string & str)
		{
			realStr.append(str);
			return *this;
		}

		SQLString & append(const char * s)
		{
			realStr.append(s);
			return *this;
		}

		const char& operator[](size_t pos) const
		{
			return realStr[pos];
		}

		size_t find(char c, size_t pos = 0) const
		{
			return realStr.find(c, pos);
		}

		size_t find(const SQLString & s, size_t pos = 0) const
		{
			return realStr.find(s.realStr, pos);
		}

		SQLString substr(size_t pos = 0, size_t n = npos) const
		{
			return realStr.substr(pos, n);
		}

		const SQLString& replace(size_t pos1, size_t n1, const SQLString & s)
		{
			realStr.replace(pos1, n1, s.realStr);
			return *this;
		}

		size_t find_first_of(char c, size_t pos = 0) const
		{
			return realStr.find_first_of(c, pos);
		}

		size_t find_last_of(char c, size_t pos = npos) const
		{
			return realStr.find_last_of(c, pos);
		}

		const SQLString & operator+=(const SQLString & op2)
		{
			realStr += op2.realStr;
			return *this;
		}
};


/*
  Operators that can and have to be not a member.
*/
inline const SQLString operator+(const SQLString & op1, const SQLString & op2)
{
	return sql::SQLString(op1.asStdString() + op2.asStdString());
}

inline bool operator ==(const SQLString & op1, const SQLString & op2)
{
	return (op1.asStdString() == op2.asStdString());
}

inline bool operator !=(const SQLString & op1, const SQLString & op2)
{
	return (op1.asStdString() != op2.asStdString());
}

inline bool operator <(const SQLString & op1, const SQLString & op2)
{
	return op1.asStdString() < op2.asStdString();
}


}// namespace sql


namespace std
{
	// operator << for SQLString output
	inline ostream & operator << (ostream & os, const sql::SQLString & str )
	{
		return os << str.asStdString();
	}
}
#endif