// WordIter.h: interface for the WordIter class.
//
//////////////////////////////////////

#if !defined(AFX_WORDITER_H_INCLUDED_)
#define AFX_WORDITER_H_INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <ctype.h>
#include <iterator>
#include <string>

class WordIter : public std::iterator<std::input_iterator_tag, std::string>  
{
private:
  static const char END_OF_STRING;

	char const	*s;
	char const	*e;
	int			nLen;

	void findword();

public:
	static const WordIter	EOS;
	
	// Default ctor equal 
	// beyond-the-end.
	WordIter() :s(&END_OF_STRING),e(&END_OF_STRING),nLen(0) {};

	WordIter(char const * const S) : e(S) {findword();}
	WordIter(const std::string S) : e(S.c_str()) {findword();}


	WordIter& operator=(char const * const S) 
		{e=S; findword(); return(*this);}
	
	std::string	operator*()	const		
		{return std::string(s, nLen);}
		
	bool operator==(WordIter rhs) const
	{
		bool retv = false;
		if (*s == *rhs.s)
			if ( (*s==END_OF_STRING) || (s == rhs.s) )
				retv = true;
		return (retv);
	}
	bool operator!=(WordIter rhs) const 
		{return ! operator==(rhs); }

	WordIter &operator++()	  
		{findword();  return (*this);}
		
	WordIter  operator++(int) 
		{WordIter ret(*this);findword();return (ret);}
};

#endif // !defined(AFX_WORDITER_H_INCLUDED_)