将Unicode字符串写入一个txt文件

我做了我的简单txt扫描器，他将文本写入与我的选择匹配的文件中。问题是写入文件时，而不是笔写入，例如，洀漀。在照片中可以看到，例如：将Unicode字符串写入一个txt文件

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#include <iostream> 
#include <fstream> 
#include <string> 

using namespace std; 

int main() 
{ 
int offset; 
wstring DBSearchLine, ScanLine; 

wifstream ScanFile, DBSearchFile; 
wofstream ResultFile; 
ScanFile.open("ScanFile.txt", ios_base::binary); 
ResultFile.open("ResultFile.txt", ios::out, ios_base::binary); 

if (ScanFile.is_open()) 
{ 
    while (!ScanFile.eof()) 
    { 
     DBSearchFile.open("DBSearchFile.txt", ios_base::binary); 
     if (!DBSearchFile.is_open()) 
     { 
      cout << "Error open DBSearchFile.txt" << "\n"; 
      break; 
     } 

     getline(ScanFile, ScanLine); 
     wcout << "Scan line is - " << ScanLine << "\n"; 

     while (!DBSearchFile.eof()) 
     { 
      getline(DBSearchFile, DBSearchLine); 
      wcout << "DBSearchLine is -" << DBSearchLine << "\n"; 
      if ((offset = ScanLine.find(DBSearchLine, 0)) != string::npos) 
      { 
       ResultFile << ScanLine << L"\n"; 
      } 
     } 
     DBSearchFile.close(); 
    } 
    ScanFile.close(); 
} 
else 
{ 
    cout << "Error open ScanFile.txt" << "\n"; 
} 
system("PAUSE"); 
return 0; 
}

来源

2016-12-23 Marek

请问，如果你使用字符，而不是宽字符工作的呢？ – ZDF

@ZDF如果你的意思是字符串是无法使用getline的wstring，因为插入的字符串是wstring。并且在编码方面应该有所不同 – Marek

'ResultFile.open（“ResultFile.txt”，ios :: out，ios_base :: binary）' - 不应该是'ios :: out |的ios_base :: binary'？此外，不能再现 - 铿锵3.9.0，Ubuntu 14.04.05 x86_64。 –

#include <iostream> 
#include <fstream> 
#include <string> 
#include <locale> 
#include <codecvt> 

using namespace std; 

int main() 
{ 
    /* via http://stackoverflow.com/a/5105192/4005233 
     changes the encoding of the console and all subsequently opened 
     files */ 
    std::locale::global(std::locale("")); 

    wifstream ScanFile; 
    ScanFile.open("ScanFile.txt", ios_base::binary); 
    if (!ScanFile.is_open()) { 
     cout << "Error open ScanFile.txt" << "\n"; 
     return 1; 
    } 

    wofstream ResultFile("ResultFile.txt", ios::out); 

    while (!ScanFile.eof()) 
    { 
     wifstream DBSearchFile; 
     DBSearchFile.open("DBSearchFile.txt", ios_base::binary); 
     if (!DBSearchFile.is_open()) 
     { 
      cout << "Error open DBSearchFile.txt" << "\n"; 
      break; 
     } 

     wstring ScanLine; 
     getline(ScanFile, ScanLine); 
     wcout << "Scan line is - " << ScanLine << "\n"; 

     do 
     { 
      wstring DBSearchLine; 
      getline(DBSearchFile, DBSearchLine); 
      // have all lines been read? 
      if(!DBSearchLine.length()) 
       break; 
      wcout << "DBSearchLine is -" << DBSearchLine << "\n"; 

      if (ScanLine.find(DBSearchLine, 0) != string::npos) 
      { 
       ResultFile << ScanLine << L"\n"; 
       break; // found a match, no need to search further 
      } 
     }while(1); 
     DBSearchFile.close(); 
    } 

    ScanFile.close(); 

    return 0; 
}

这是使用有和没有BOM文件进行测试。

最内层的循环必须改变，以处理结尾带有换行符的文件;如果我没有这样做，它会匹配一个总是为真的空字符串。

（我也改变了一些其他的事情，根据我的编码风格，最重要的变化是一个正确的顶部）

来源

2016-12-23 23:25:40 user45891

将Unicode字符串写入一个txt文件

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