.. _program_listing_file_src_common_file_utils.cpp:

Program Listing for File file_utils.cpp
=======================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_common_file_utils.cpp>` (``src/common/file_utils.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "common/file_utils.h"
   #include "common/utils.h"
   
   namespace marian {
   namespace fileutils {
   
   void cut(const std::string& tsvIn,
            Ptr<io::TemporaryFile> tsvOut,
            const std::vector<size_t>& fields,
            size_t numFields,
            const std::string& sep /*= "\t"*/) {
     std::vector<std::string> tsvFields(numFields);
     std::string line;
     io::InputFileStream ioIn(tsvIn);
     while(getline(ioIn, line)) {
       tsvFields.clear();
       utils::splitTsv(line, tsvFields, numFields);  // split tab-separated fields
       for(size_t i = 0; i < fields.size(); ++i) {
         *tsvOut << tsvFields[fields[i]];
         if(i < fields.size() - 1)
           *tsvOut << sep;  // concatenating fields with the custom separator
       }
       *tsvOut << std::endl;
     }
   };
   
   }  // namespace fileutils
   }  // namespace marian