正则表达式查找替换

待我称王封你为后i 2022-07-21 01:59 277阅读 0赞

## 1 项目描述 ##

在文本中查找替换对应的字符串，功能如下：

thisisbefore(self ,func) 替换成thisisafter(func,self).

## 2详细设计 ##

2.1字符串查找替换

string regexReplace(string sMsg, string sSreach, string sReplace)
    {
    	string sRet = "";
    	std::regex rPattern(sSreach);//搜索串
    	sRet = std::regex_replace(sMsg, rPattern, sReplace);
    	return sRet;
    }

### 2.2self与func交换位置 ###

string regexSelfChangePos(string sMsg)
    {
    	string sFunc = "";
    	string sSelf = "";
    	std::smatch rPotRet;
    	std::regex rPotPattern("[(](\\s*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*[.]*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*\\s*),(\\s*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*[.]*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*\\s*)[)]");
    	const std::sregex_token_iterator end;
    
    	for (std::sregex_token_iterator itPot(sMsg.begin(), sMsg.end(), rPotPattern); itPot != end; ++itPot)
    	{
    		std::string sPot = *itPot;
    		if (std::regex_search(sPot, rPotRet, rPotPattern))
    		{
    			sFunc = rPotRet[1].str();
    			sSelf = rPotRet[2].str();
    		}
    
    	}
    
    	sFunc = regexDelBlank(sFunc);
    	sSelf = regexDelBlank(sSelf);
    	string tmp = sSelf + "Tmp";
    	sMsg = regexReplace(sMsg, sFunc, tmp);
    	sMsg = regexReplace(sMsg, sSelf, sFunc);
    	sMsg = regexReplace(sMsg, sFunc + "Tmp", sSelf);
    	return sMsg;
    }

### 2.3文件读写操作 ###

int fileTest()
    {
    	char* old_locale = _strdup(setlocale(LC_CTYPE, NULL));
    	setlocale(LC_CTYPE, "chs");
    	CString StrFileName("d:\\fileTest.lua");
    	CStdioFile TempFile, File;
    	if (!File.Open(StrFileName, CFile::modeRead))
    		return -1;
    	CString StrTempFileName = File.GetFileTitle() + CString(".tmp");
    	if (!TempFile.Open(StrTempFileName, CFile::modeCreate | CFile::modeReadWrite))
    		return -1;
    	CString Str;
    	while (File.ReadString(Str))
    	{
    		string sMsg = (CStringA)Str;
    		sMsg = clickDeal(sMsg);
    		CString strNew(sMsg.c_str());	
    		TempFile.WriteString(strNew + CString("\n"));		
    	}
    	File.Close();
    	TempFile.Close();
    	CFile::Remove(StrFileName);
    	CFile::Rename(StrTempFileName, StrFileName);
    	printf("successful ");
    	setlocale(LC_CTYPE, old_locale); //还原语言区域的设置 
    	free(old_locale);//还原区域设定
    	return 0;
    }

全部源代码

// Regex2.cpp : 定义控制台应用程序的入口点。
    //
    
    #include "stdafx.h"
    #include "Regex2.h"
    #include "stdafx.h"
    
    #include <regex>
    #include <iostream>
    #include <string>
    #include "Windows.h" 
    #include "Windef.h" 
    #include "atltypes.h"
    #include <atlconv.h>
    #include <locale.h>
    // 唯一的应用程序对象
    
    CWinApp theApp;
    
    using namespace std;
    
    #ifdef _DEBUG
    #define new DEBUG_NEW
    #endif
    
    
    // 唯一的应用程序对象
    
    using namespace std;
    //替换
    string regexReplace(string sMsg, string sSreach, string sReplace)
    {
    	string sRet = "";
    	std::regex rPattern(sSreach);//搜索串
    	sRet = std::regex_replace(sMsg, rPattern, sReplace);
    	return sRet;
    }
    
    string regexDelBlank(string sMsg)
    {
    	string sSreach = "\\s*";
    
    	std::regex rPattern(sSreach);//搜索串
    
    	sMsg = std::regex_replace(sMsg, rPattern, "");
    
    	return sMsg;
    }
    string regexSelfChangePos(string sMsg)
    {
    	string sFunc = "";
    	string sSelf = "";
    	std::smatch rPotRet;//([0-9]+)  ([a-zA-Z]+)
    	std::regex rPotPattern("[(](\\s*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*[.]*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*\\s*),(\\s*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*[.]*[a-zA-Z]+[0-9]*[a-zA-Z]+[0-9]*\\s*)[)]");
    	const std::sregex_token_iterator end;
    
    	for (std::sregex_token_iterator itPot(sMsg.begin(), sMsg.end(), rPotPattern); itPot != end; ++itPot)
    	{
    		std::string sPot = *itPot;
    		if (std::regex_search(sPot, rPotRet, rPotPattern))
    		{
    			sFunc = rPotRet[1].str();
    			sSelf = rPotRet[2].str();
    		}
    
    	}
    
    	sFunc = regexDelBlank(sFunc);
    	sSelf = regexDelBlank(sSelf);
    	string tmp = sSelf + "Tmp";
    	sMsg = regexReplace(sMsg, sFunc, tmp);
    	sMsg = regexReplace(sMsg, sSelf, sFunc);
    	sMsg = regexReplace(sMsg, sFunc + "Tmp", sSelf);
    	return sMsg;
    }
    
    string  clickDeal(string sMsg)
    {
    	string sOut = regexReplace(sMsg, "thisisbefore", "thisisafter");
    
    	sMsg = regexSelfChangePos(sOut);
    	return sMsg;
    }
    
    int fileTest()
    {
    	char* old_locale = _strdup(setlocale(LC_CTYPE, NULL));
    	setlocale(LC_CTYPE, "chs");
    	CString StrFileName("d:\\fileTest.lua");
    	CStdioFile TempFile, File;
    	if (!File.Open(StrFileName, CFile::modeRead))
    		return -1;
    	CString StrTempFileName = File.GetFileTitle() + CString(".tmp");
    	if (!TempFile.Open(StrTempFileName, CFile::modeCreate | CFile::modeReadWrite))
    		return -1;
    	CString Str;
    	while (File.ReadString(Str))
    	{
    		string sMsg = (CStringA)Str;
    		sMsg = clickDeal(sMsg);
    		CString strNew(sMsg.c_str());	
    		TempFile.WriteString(strNew + CString("\n"));		
    	}
    	File.Close();
    	TempFile.Close();
    	CFile::Remove(StrFileName);
    	CFile::Rename(StrTempFileName, StrFileName);
    	printf("successful ");
    	setlocale(LC_CTYPE, old_locale); //还原语言区域的设置 
    	free(old_locale);//还原区域设定
    	return 0;
    }
    
    
    int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
    {
    	int nRetCode = 0;
    
    	HMODULE hModule = ::GetModuleHandle(NULL);
    
    	if (hModule != NULL)
    	{
    		// 初始化 MFC 并在失败时显示错误
    		if (!AfxWinInit(hModule, NULL, ::GetCommandLine(), 0))
    		{
    			// TODO:  更改错误代码以符合您的需要
    			_tprintf(_T("错误:  MFC 初始化失败\n"));
    			nRetCode = 1;
    		}
    		else
    		{
    			// TODO:  在此处为应用程序的行为编写代码。
    			fileTest();
    		}
    	}
    	else
    	{
    		// TODO:  更改错误代码以符合您的需要
    		_tprintf(_T("错误:  GetModuleHandle 失败\n"));
    		nRetCode = 1;
    	}
    	getchar();
    	return nRetCode;
    }