文件内容替换。支持批量处理和特殊字符。

 1 #include <stdio.h>
 2 #include <iostream>
 3 #include <fstream>
 4 #include <sstream>
 5 #include <streambuf>
 6 #include <string>
 7 #include <io.h>
 8
 9 using namespace std;
10
11 int string_replace(std::string& buf, const std::string & src, const std::string & dest)
12 {
13     int pos = 0;
14     int src_len = src.size();
15     int dest_len = dest.size();
16     int replace_count = 0;
17
18     while(pos != string::npos)
19     {
20         if((pos = buf.find(src, pos)) > 0)
21             buf.replace(pos, src_len, dest), replace_count++;
22     }
23
24     return replace_count;
25 }
26
27 int main(int argc, char* argv[])
28 {
29     _finddata_t fd;
30
31     char srcStr[] =        "oooooooooooooooooooooooooooooo";
32     char destStr[] =    "xxxxxxxxxxxxxxxxxxxxxxxxxxx";
33
34
35     long pf = _findfirst("*.cpp",&fd);
36     do
37     {
38         if ((fd.attrib & _A_RDONLY) == 0) // ignore read-only file
39         {
40             // read all from source file
41             ifstream inf(fd.name);
42             std::stringstream filebuf;
43             filebuf << inf.rdbuf();
44             std::string buf(filebuf.str());
45             inf.close();
46
47             // replace string and recover orignal file
48             if (string_replace(buf, std::string(srcStr), string(destStr)))
49             {
50                 char newName[128];
51                 memset(newName, 0, 128);
52                 sprintf(newName, "%s.bak", fd.name);
53                 ofstream  newInf;
54                 newInf.open(newName, ios::out);
55                 newInf << buf;
56                 newInf.close();
57
58                 char cmd[100];
59                 sprintf(cmd, "move /Y %s %s", newName, fd.name);
60                 system(cmd);
61             }
62
63         } // loop one file
64     }while (!_findnext(pf,&fd));
65
66     _findclose(pf);
67
68     return 0;
69 }

遍历一个文件夹下是所有类型文件，替换字符串。