tokenizer.h

来自「高精度遥感处理算法(RPC正解)」· C头文件 代码 · 共 56 行

// Tokenizer.h: interface for the CTokenizer class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_TOKENIZER_H__276B4AF7_6FD0_4A64_862D_AD309AA02B4D__INCLUDED_)
#define AFX_TOKENIZER_H__276B4AF7_6FD0_4A64_862D_AD309AA02B4D__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <bitset>
class CTokenizer  
{public:
	CTokenizer(const CString& cs,const CString& csDelim ):m_cs(cs),m_nCurPos(0)
	{
		SetDelimiters(csDelim);
	}
	void SetDelimiters(const CString& csDelim)
	{
		for(int i=0;i<csDelim.GetLength();++i)
			m_sDelimiter.set(static_cast<BYTE>(csDelim[i]));
	}
	bool Next(CString& cs)
	{
		cs.Empty();
		while(m_nCurPos<m_cs.GetLength()&&m_sDelimiter[static_cast<BYTE>(m_cs[m_nCurPos])])
			++m_nCurPos;
		if(m_nCurPos>=m_cs.GetLength())
			return FALSE;
		int nStartPos=m_nCurPos;
		while(m_nCurPos<m_cs.GetLength()&&!m_sDelimiter[static_cast<BYTE>(m_cs[m_nCurPos])])
			++m_nCurPos;
		cs=m_cs.Mid(nStartPos,m_nCurPos-nStartPos);
		return TRUE;
	}
	CString Tail() const
	{
		int nCurPos=m_nCurPos;
		while(nCurPos<m_cs.GetLength()&&m_sDelimiter[static_cast<BYTE>(m_cs[nCurPos])])
			++nCurPos;
		CString csResult;
		if(nCurPos<m_cs.GetLength())
			csResult=m_cs.Mid(nCurPos);
		return csResult;
	}

//	virtual ~CTokenizer();
private:
	CString m_cs;
	std::bitset<256> m_sDelimiter;
	int m_nCurPos;

};

#endif // !defined(AFX_TOKENIZER_H__276B4AF7_6FD0_4A64_862D_AD309AA02B4D__INCLUDED_)