File.cpp

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// ----------------------------------------------------------------------------
//
// $Id$
//
// Copyright 2008, 2009, 2010, 2011  Antonio Franchi and Paolo Stegagno    
//
// This file is part of MIP.
//
// MIP is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// MIP 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 MIP. If not, see <http://www.gnu.org/licenses/>.
//
// Contact info: antonio.franchi@tuebingen.mpg.de stegagno@dis.uniroma1.it
//
// ----------------------------------------------------------------------------


#include <telekyb_base/File/File.hpp>


//#include <Tools/TokenReader.h>
// stl
//#include <iostream>


// boost
#include <boost/tokenizer.hpp>

// ros
#include <ros/console.h>

// defines
#define FILE_COMMENT_CHAR '#'

namespace TELEKYB_NAMESPACE
{

typedef boost::tokenizer< boost::escaped_list_separator<char> > Tokenizer;

File::File(const std::string& fileName_, std::ifstream::openmode mode)
{
        fileName = fileName_;
        file.open(fileName.c_str(), mode);

        if (!file.is_open())
        {
                ROS_WARN_STREAM(fileName << " does not exist!");
        }
}

File::~File()
{
        file.close();
}

bool File::getWords(std::vector<std::string>& wordVector)
{
        // exit conditions
        if (!file.is_open()) {
                ROS_WARN_STREAM("Cound not get Words from File! " << fileName << " does not exist!");
                return false;
        }

        // a line is always a word sparator
        std::string line;
        while(std::getline(file, line)) {
                // check if line has #. ignore rest
                size_t cPos = line.find( FILE_COMMENT_CHAR );
                line = line.substr(0,cPos);

                boost::escaped_list_separator<char> sep('\\',' ','\"');
                Tokenizer tokenizer(line,sep);

                for(Tokenizer::iterator it = tokenizer.begin(); it != tokenizer.end(); it++) {
                        wordVector.push_back(*it);
                }
        }

        return true;
}

} // namespace