VC++std::string功能扩展

VC&＃43;&＃43;中使用频率最高的字符串莫过于std::string和CString了&＃xff0c;但是std::string相比较CString而言&＃xff0c;少了字符串格式化功能&＃xff0c;于是扩展一下&＃xff0c;方便以后使用&＃xff1a;

// xstring.h
#pragma once#include
#include
#include namespace SW{templateclass string: public basic_string<_CharT, _Traits, _Alloc>{public:typedef typename _Alloc::template rebind<_CharT>::other _CharT_alloc_type;typedef typename _CharT_alloc_type::size_type size_type;static const size_type npos &＃61; static_cast (-1);inline string() :basic_string<_CharT, _Traits, _Alloc> (){}explicit string(const _Alloc& __a) :basic_string<_CharT, _Traits, _Alloc> (){}string(const string& __str) :basic_string<_CharT, _Traits, _Alloc> (__str){}string(const string& __str, size_type __pos, size_type __n &＃61; npos) :basic_string<_CharT, _Traits, _Alloc> (__str, __pos, npos){}string(const string& __str, size_type __pos, size_type __n,const _Alloc& __a) :basic_string<_CharT, _Traits, _Alloc> (__str, __pos, __n, __a){}string(const _CharT* __s, size_type __n, const _Alloc& __a &＃61; _Alloc()) :basic_string<_CharT, _Traits, _Alloc> (__s, __n, __a){}string(const _CharT* __s, const _Alloc& __a &＃61; _Alloc()) :basic_string<_CharT, _Traits, _Alloc> (__s, __a){}string(size_type __n, _CharT __c, const _Alloc& __a &＃61; _Alloc()) :basic_string<_CharT, _Traits, _Alloc> (__n, __c, __a){}templatestring(_InputIterator __beg, _InputIterator __end, const _Alloc& __a &＃61;_Alloc()) :basic_string<_CharT, _Traits, _Alloc> (__beg, __end, __a){}string& operator&＃61;(const string& __str){return this->assign(__str);}string& operator&＃61;(const _CharT* __s){this->assign(__s);return *this;}string& operator&＃61;(_CharT __c){this->assign(1, __c);return *this;}inline string& LeftTrim(){this->erase(0, this->find_first_not_of(" "));return *this;}inline string& RightTrim(){this->erase(this->find_last_not_of(" ") &＃43; 1);return *this;}inline string& Trim(){LeftTrim();RightTrim();return *this;}inline string &Format(const char *_format, ...){va_list args;va_start(args, _format);char szBuffer[1000] &＃61; { 0 };memset(szBuffer, 0x00, sizeof(szBuffer));try{vsnprintf_s(szBuffer, 1000, _format, args);} catch (...){cout <<"ERROR: format the string failed..." <assign(szBuffer);return *this;}inline string &AppendFormat(const char *_format, ...){char szBuffer[1000];memset(szBuffer, 0x00, sizeof(szBuffer));va_list ap;va_start(ap, _format);try{vsnprintf(szBuffer, 1000, _format, ap);} catch (...){cout <<"ERROR: format the string failed..." <append(szBuffer);return *this;}inline string &Replace(string oldStr, string newStr){string::size_type pos &＃61; 0;string::size_type srcLen &＃61; oldStr.size();string::size_type desLen &＃61; newStr.size();pos &＃61; find(oldStr, pos);while ((pos !&＃61; string::npos)){strSrc.replace(pos, srcLen, newStr);pos &＃61; strSrc.find(oldStr, (pos &＃43; desLen));}return *this;}std::vector ExtractSubString(string separateStr, bool repeatedCharIgnored){string sSrc &＃61; *this;std::vector resultStringVector;size_t pos &＃61; sSrc.find(separateStr.c_str());string subString &＃61; "";while (pos !&＃61; string::npos){subString &＃61; sSrc.substr(0, pos);if (!subString.empty() || !repeatedCharIgnored){resultStringVector.push_back(subString);}sSrc.erase(sSrc.begin(), sSrc.begin() &＃43; pos &＃43; separateStr.length());pos &＃61; sSrc.find(separateStr.c_str());}subString &＃61; sSrc;if (!subString.empty() || !repeatedCharIgnored){resultStringVector.push_back(subString);}return resultStringVector;}};using string &＃61; basic_string, allocator>;using wstring &＃61; basic_string, allocator>;using u16string &＃61; basic_string, allocator>;using u32string &＃61; basic_string, allocator>;
}