VTK/Examples/Cxx/Utilities/FilenameFunctions

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This example gets a list of all files in a directory. It then extracts the file extension and filename from each string.

FilenameFunctions.cxx

#include <vtkSmartPointer.h>
#include <vtkDirectory.h>
#include <string>
#include <vtksys/SystemTools.hxx>
 
int main(int argc, char *argv[])
{
  std::string directoryName;
  if(argc < 2)
    {
    directoryName = std::string(".");    
    }
  else
    {
    directoryName = std::string(argv[1]);    
    }
 
  vtkSmartPointer<vtkDirectory> directory =
    vtkSmartPointer<vtkDirectory>::New();
 
  int opened = directory->Open(directoryName.c_str());
  if(!opened)
    {
    std::cout << "Invalid directory!" << std::endl;
    return EXIT_FAILURE;
    }
 
  int numberOfFiles = directory->GetNumberOfFiles();
  std::cout << "Number of files: " << numberOfFiles << std::endl;
 
  for (int i = 0; i < numberOfFiles; i++)
    {
    std::string fileString = directoryName;
    fileString += "/";
    fileString += directory->GetFile(i);
 
    std::string ext = vtksys::SystemTools::GetFilenameLastExtension(fileString);
    std::cout << fileString << " extension: " << ext << std::endl;
 
    std::string name = vtksys::SystemTools::GetFilenameWithoutLastExtension(fileString);    
    std::cout << "name: " << name << std::endl;
    }
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
PROJECT(FilenameFunctions)
 
FIND_PACKAGE(VTK REQUIRED)
INCLUDE(${VTK_USE_FILE})
 
ADD_EXECUTABLE(FilenameFunctions FilenameFunctions.cxx)
TARGET_LINK_LIBRARIES(FilenameFunctions vtkHybrid)
Retrieved from "http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/FilenameFunctions"
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