#pragma once

#ifndef TTOKENIZER_INCLUDED

#define TTOKENIZER_INCLUDED

#include "tcommon.h"

#ifdef _WIN32

#pragma warning(push)

#pragma warning(disable : 4251)

#endif

#undef DVAPI

#undef DVVAR

#ifdef TNZBASE_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

namespace TSyntax

{

//-------------------------------------------------------------------

class DVAPI Token

{

public:

	enum Type { None,

				Space,

				Ident,

				Number,

				Punct,

				Eos };

	Token(int pos = 0)

		: m_text(""), m_type(None), m_pos(pos)

	{

	}

	Token(int p0, int p1)

		: m_text(p1 - p0 + 1, ' '), m_type(Space), m_pos(p0)

	{

	}

	Token(std::string text, Type type, int pos)

		: m_text(text), m_type(type), m_pos(pos)

	{

	}

	Type getType() const { return m_type; }

	std::string getText() const { return m_text; }

	int getIntValue() const;

	double getDoubleValue() const;

	int getPos() const { return m_pos; }

	int getPos1() const { return m_pos + m_text.length() - 1; }

private:

	std::string m_text;

	int m_pos;

	Type m_type;

};

//-------------------------------------------------------------------

class DVAPI Tokenizer

{

	std::string m_buffer;

	std::vector<token> m_tokens;</token>

	int m_index;

public:

	Tokenizer();

	Tokenizer(std::string buffer);

	~Tokenizer();

	void setBuffer(std::string buffer);

	std::string getBuffer() const { return m_buffer; }

	int getTokenCount() const;

	const Token &getToken(int index) const;

	//! get the token containing the pos-th character in the input string

	Token getTokenFromPos(int pos) const;

	//! reset the token index. (set it to 0)

	void reset();

	//! return the current token (possibly Eos)

	const Token &getToken();

	//! same as getToken(), but post-increment the token index (if !eos())

	Token nextToken();

	//! return true if the current token is the last one

	bool eos() const;

	//! to read all the sequence:

	//! while(!tokenizer.eos()) {token = tokenizer.nextToken();...}

};

//-------------------------------------------------------------------

} // namespace TSyntax

#ifdef _WIN32

#pragma warning(pop)

#endif

#endif