TableReader.ih

/**
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 **/
 
/**
 * @file TableReader.ih
 * @author Bertrand Kerautret (\c kerautre@loria.fr )
 * LORIA (CNRS, UMR 7503), University of Nancy, France
 *
 * @date 2013/11/30
 *
 * Implementation of inline methods defined in TableReader.h
 *
 * This file is part of the DGtal library.
 */
 
///////////////////////////////////////////////////////////////////////////////
// IMPLEMENTATION of inline methods.
///////////////////////////////////////////////////////////////////////////////
 
//////////////////////////////////////////////////////////////////////////////
#include <cstdlib>
#include <sstream>
#include <fstream>
//////////////////////////////////////////////////////////////////////////////
 
 
 
///////////////////////////////////////////////////////////////////////////////
// Implementation of inline methods                                          //
 
 
 
 
template<typename TQuantity>
inline
std::vector<TQuantity>
DGtal::TableReader<TQuantity>::getColumnElementsFromFile (const std::string &aFilename,  unsigned int aPosition)
{
  std::ifstream infile;
  infile.open (aFilename.c_str(), std::ifstream::in);
  return TableReader<TQuantity>::getColumnElementsFromInputStream(infile, aPosition);
}
 
template <typename TQuantity>
inline std::vector<TQuantity>
DGtal::TableReader<TQuantity>::getColumnElementsFromInputStream(
std::istream & in, unsigned int aPosition )
{
  std::vector<TQuantity> vectResult;
  std::string str;
  getline(in, str );
  while ( in.good() )
  {
    if ( ( str != "" ) && ( str[ 0 ] != '#' ) )
    {
      std::istringstream in_str( str );
      std::string wordVal;
      TQuantity val;
      bool found       = false;
      unsigned int idx = 0;
      while ( in_str.good() && !found )
      {
        std::operator>>( in_str, wordVal );
        std::istringstream word_str( wordVal );
        word_str >> val;
        bool isOK = !word_str.fail();
        if ( isOK && idx == aPosition )
        {
          found = true;
          vectResult.push_back( val );
        }
        idx++;
      }
    }
    getline( in, str );
  }
  return vectResult;
}
 
template <typename TQuantity>
inline std::vector<std::vector<TQuantity>>
DGtal::TableReader<TQuantity>::getLinesElementsFromFile(
const std::string & aFilename )
{
  std::ifstream infile;
  infile.open( aFilename.c_str(), std::ifstream::in );
  return DGtal::TableReader<TQuantity>::getLinesElementsFromInputStream(
  infile );
}
 
template <typename TQuantity>
inline std::vector<std::vector<TQuantity>>
DGtal::TableReader<TQuantity>::getLinesElementsFromInputStream(
std::istream & in )
{
  std::vector<std::vector<TQuantity>> vectResult;
  std::string str;
  getline( in, str );
  while ( in.good() )
  {
    std::vector<TQuantity> aLine;
    if ( ( str != "" ) && ( str[ 0 ] != '#' ) )
    {
      std::istringstream in_str( str );
      std::string wordVal;
      TQuantity val;
      while ( in_str.good() )
      {
        std::operator>>( in_str, wordVal );
        std::istringstream word_str( wordVal );
        word_str >> val;
        if ( !word_str.fail() )
        {
          aLine.push_back( val );
        }
      }
      vectResult.push_back( aLine );
    }
    getline( in, str );
  }
  return vectResult;
}
 
//                                                                           //
///////////////////////////////////////////////////////////////////////////////