TextFileOperator  [--returnparameterfile <std::string>]
                     [--processinformationaddress <std::string>] [--xml]
                     [--echo] [--scale <double>] [--indexRow <std::string>]
                     [--connectColumn <std::string>] [--connectRow
                     <std::string>] [--extract <std::vector<int>>]
                     [--transpose] [--info] [-o <std::string>] [--]
                     [--version] [-h] <std::string>


   --returnparameterfile <std::string>
     Filename in which to write simple return parameters (int, float,
     int-vector, etc.) as opposed to bulk return parameters (image,
     geometry, transform, measurement, table).

   --processinformationaddress <std::string>
     Address of a structure to store process information (progress, abort,
     etc.). (default: 0)

     Produce xml description of command line arguments (default: 0)

     Echo the command line arguments (default: 0)

   --scale <double>
     Scale value.

   --indexRow <std::string>
     Index file to select rows.

   --connectColumn <std::string>
     The file which is appended after all columns in theh input file.

   --connectRow <std::string>
     The file which is appended after all rows in theh input file.

   --extract <std::vector<int>>
     Extract submatrix based on 4 indices rowStart,rowEnd,columnStart

     File transpose. (default: 0)

     File information. (default: 0)

   -o <std::string>,  -- <std::string>
     Output file.

   --,  --ignore_rest
     Ignores the rest of the labeled arguments following this flag.

     Displays version information and exits.

   -h,  --help
     Displays usage information and exits.

     (required)  Input file.

   Description: Operations for text files.

   Author(s): Jian Cheng (jian.cheng.1983@gmail.com)

   Acknowledgements: Thank you everyone.