正则表达式查找替换

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;
}