vpIoTools.h

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Directory management.
 *
 * Authors:
 * Fabien Spindler
 *
 *****************************************************************************/


#ifndef vpIoTools_HH
#define vpIoTools_HH

#include <visp3/core/vpConfig.h>

#include <iostream>
#include <sstream>
#include <string>
#include <stdlib.h>
#include <vector>
#include <visp3/core/vpColor.h>

class VISP_EXPORT vpIoTools
{

public:
  static const std::string& getBuildInformation();
  static void getUserName(std::string &username);
  static std::string getUserName();
  static std::string getenv(const char *env);
  static std::string getenv(const std::string &env);
  static std::string getViSPImagesDataPath();
  static void getVersion(const std::string &version, unsigned int &major, unsigned int &minor, unsigned int &patch);
  static bool checkDirectory(const char *dirname);
  static bool checkDirectory(const std::string &dirname);
  static bool checkFilename(const char *filename);
  static bool checkFilename(const std::string &filename);
  static bool copy(const char *src, const char *dst);
  static bool copy(const std::string &src, const std::string &dst);
  static void makeDirectory(const char *dirname);
  static void makeDirectory(const std::string &dirname);
  static bool remove(const char *filename);
  static bool remove(const std::string &filename);
  static bool rename(const char *oldfilename, const char *newfilename);
  static bool rename(const std::string &oldfilename, const std::string &newfilename);
  
  static std::string path(const char * pathname);
  static std::string path(const std::string &pathname);
  
  static const char separator =
  #if defined(_WIN32)
    '\\';
  #else
    '/';
  #endif

  static std::string getAbsolutePathname(const std::string &pathname);
  static std::string getFileExtension(const std::string &pathname, const bool checkFile=false);
  static std::string getName(const std::string &pathname);
  static std::string getNameWE(const std::string &pathname);
  static std::string getParent(const std::string& pathname);
  static std::string createFilePath(const std::string& parent, const std::string child);
  static bool isAbsolutePathname(const std::string& pathname);
  static bool isSamePathname(const std::string& pathname1, const std::string& pathname2);
  static std::pair<std::string, std::string> splitDrive(const std::string& pathname);
  static std::vector<std::string> splitChain(const std::string & chain, const std::string & sep);

  // read configuration file
  static bool loadConfigFile(const std::string &confFile);
  static bool readConfigVar(const std::string &var, float &value);
  static bool readConfigVar(const std::string &var, double &value);
  static bool readConfigVar(const std::string &var, int &value);
  static bool readConfigVar(const std::string &var, unsigned int &value);
  static bool readConfigVar(const std::string &var, bool &value);
  static bool readConfigVar(const std::string &var, std::string &value);
  static bool readConfigVar(const std::string &var, vpColor &value);
  static bool readConfigVar(const std::string &var, vpArray2D<double> &value,
                            const unsigned int &nCols = 0,
                            const unsigned int &nRows = 0);
  
  // construct experiment filename & path
  static void setBaseName(const std::string &s);
  static void setBaseDir(const std::string &dir);
  static void addNameElement(const std::string &strTrue, 
                 const bool &cond=true, 
                 const std::string &strFalse="");
  static void addNameElement(const std::string &strTrue, const double &val);
  static std::string getBaseName();
  static std::string getFullName();
  
  // write files
  static void saveConfigFile(const bool &actuallySave = true);
  static void createBaseNamePath(const bool &empty = false);

 protected:
  static std::string baseName;
  static std::string baseDir;
  static std::string configFile;
  static std::vector<std::string> configVars;
  static std::vector<std::string> configValues;
} ;


#endif