#pragma once
#include "SHArray.h"

//通用字符串类,以NULL结尾
class UString : public SHArray<wchar_t>
{
public:
	
	UString(long size = 0);
	
	UString(const char *pszVal);
	
	UString(const wchar_t * format);
	
	UString(const UString &string);

	virtual ~UString();

	UString& operator = (UString &string);

	UString& operator = (const wchar_t *p);
	
	UString& operator << (int i);
	
	UString& operator << (double d);
	
	UString& operator << (wchar_t c);
	
	UString& operator << (const UString &s);
	
	UString& operator << (const wchar_t *p);
	
	UString& Format(const wchar_t *format,...);

	const UString& operator >> (int &i) const;
	
	const UString& operator >> (double &d) const;
	
	const UString& operator >> (UString &s) const;
	
	const UString& operator >> (wchar_t *p) const;

	bool operator == (const wchar_t *p) const;
	
	bool operator != (const wchar_t *p) const;
	
	bool operator >  (const wchar_t *p) const;
	
	bool operator <  (const wchar_t *p) const;
	
	int operator - (const wchar_t *p) const;
	
	UString operator + (const UString &string) const;
	
	operator int() const;
	
	operator float() const;
	
	operator double() const;
	
	operator const wchar_t*() const;

	void Clear();
	
	void FreeExtra();
	
	void Realloc(long size,bool bCopy = true);

	void Del(long i);
	
	long Del(const UString &s);

	void Del(long from, long to);
	
	void DelLeft(long count);
	
	void DelRight(long count);
	
	void Insert(long i, wchar_t c);

	bool Insert(long i, const UString &s);

	long IsValidIndex(long index) const;
	
	long Length() const;
	
	long ReverseFind(wchar_t c) const;
	
	long IsEmpty() const;
	
	bool IsIntNumber() const;
	
	bool IsFloatNumber() const;

	//字母变大写
	void MakeUpper();			
	
	void Reverse(long start = 0, long to = -1);
	
	void CreateNextTable(long *next) const;

	long Find(wchar_t c, long from = 0, long to = -1) const;
	
	long Find(const UString &s, long from = 0, long to = -1) const;
	
	long Find(const UString &s, SHQuene<long> &quene, long from = 0, long to = -1) const;
	
	//支持通配符的查找替换
	long FindEx(const UString &sFindRule, UString &res, int flag = 0, long from = 0, long to = -1) const;

	long Replace(const UString &s, const UString &d, long from = 0, long to = -1);
	
	void ReplaceEx(const UString &sFindRule, const UString &sReplaceRule, int flag = 0);
	
	UString Right(long count) const;
	
	UString Left(long count) const;
	
	UString Mid(long from, long to) const;

protected:
	
	void SetEnd(long index);
	
	void SetLength(long l);

	void Copy(long from, long to, long size);
	void Copy(const wchar_t *p, long pos = 0);	
	void Copy(const wchar_t *p, long pos, long size);

protected:

	long end;
};