C / C++ / MFC

<br />
int main(int argc, char *argv[])<br />
{<br />
  if (argc != 4)<br />
    {  //progname, filename, searchstr, replacestr<br />
      printf("Missing Parameters");<br />
      exit(1);<br />
    }<br />
<br />
  FILE *fp = fopen(argv[1],"rb");<br />
  if (fp)<br />
    {<br />
      CString cFileData;<br />
      char caBuf[4096];<br />
      int iSize = fread(caBuf,1,sizeof(caBuf)-1,fp);<br />
      while (iSize > 0)<br />
        {<br />
          caBuf[iSize] = 0;<br />
          cFileData += caBuf;<br />
          iSize = fread(caBuf,1,sizeof(caBuf)-1,fp);<br />
        }<br />
<br />
      fclose(fp);<br />
<br />
      cFileData.Replace(argv[2],argv[3]);<br />
<br />
      fp = fopen(argv[1],"wb");<br />
      if (fp)<br />
        {<br />
          fwrite((LPCSTR)cFileData,1,cFileData.GetLength(),fp);<br />
          fclose(fp);<br />
        }<br />
      // else error<br />
    }<br />
   // else error<br />
<br />
  return 0;<br />
}<br />

if (argc < 4) return (1);//progname, filename, searchstr, replacestr<br />
CFile file(argv[1], CFile::modeRead);<br />
CString Buffer;<br />
file.Read(Buffer.GetBuffer(file.GetLength()), file.GetLength());<br />
Buffer.ReleaseBuffer(file.GetLength());<br />
file.Close();<br />
Buffer.Replace(argv[2],argv[3]);<br />
file.Open(argv[1], CFile::modeCreate|CFile::modeWrite);<br />
file.Write((LPCTSTR)Buffer, Buffer.GetLength());<br />
file.Close();<br />

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