121 lines
3.5 KiB
C++
121 lines
3.5 KiB
C++
/*
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* This file is part of the Owl Positioning System (OwlPS).
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* OwlPS is a project of the University of Franche-Comte
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* (Université de Franche-Comté), France.
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*
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* Copyright © Université de Franche-Comté 2007-2012.
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*
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* Corresponding author: Matteo Cypriani <mcy@lm7.fr>
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*
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***********************************************************************
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*
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* This software is governed by the CeCILL license under French law and
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* abiding by the rules of distribution of free software. You can use,
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* modify and/or redistribute the software under the terms of the CeCILL
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* license as circulated by CEA, CNRS and INRIA at the following URL:
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* http://www.cecill.info
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*
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* As a counterpart to the access to the source code and rights to copy,
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* modify and redistribute granted by the license, users are provided
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* only with a limited warranty and the software's authors, the holder
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* of the economic rights, and the successive licensors have only
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* limited liability.
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*
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* In this respect, the user's attention is drawn to the risks
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* associated with loading, using, modifying and/or developing or
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* reproducing the software by the user in light of its specific status
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* of free software, that may mean that it is complicated to manipulate,
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* and that also therefore means that it is reserved for developers and
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* experienced professionals having in-depth computer knowledge. Users
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* are therefore encouraged to load and test the software's suitability
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* as regards their requirements in conditions enabling the security of
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* their systems and/or data to be ensured and, more generally, to use
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* and operate it in the same conditions as regards security.
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*
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* The fact that you are presently reading this means that you have had
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* knowledge of the CeCILL license and that you accept its terms.
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*
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***********************************************************************
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*/
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#ifndef _OWLPS_POSITIONING_CSVREADER_HH_
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#define _OWLPS_POSITIONING_CSVREADER_HH_
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class Point3D ;
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#include "timestamp.hh"
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#include <boost/tokenizer.hpp>
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#include <boost/lexical_cast.hpp>
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/// Processes CSV strings, allowing to read them field by field
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class CSVStringReader
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{
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protected:
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const char separator ;
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std::string str ;
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boost::tokenizer<boost::escaped_list_separator<char> > *current_token ;
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boost::tokenizer<boost::escaped_list_separator<char> >::const_iterator
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token_iterator ;
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unsigned int current_field_nb ;
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void print_error_cast(void) const ;
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public:
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CSVStringReader(const char _separator = ';'):
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separator(_separator), current_token(NULL), current_field_nb(0) {}
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CSVStringReader(const std::string &_str, const char _separator = ';') ;
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virtual ~CSVStringReader(void) ;
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/** @name Accessors */
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//@{
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/// Set a new string to process
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void set_str(const std::string &_str) ;
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//@}
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/** @name Operations */
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//@{
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/// Reads the next field of the current line
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template<class T> bool read_field(T &field) ;
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/// Reads the next field that should be a Timestamp
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bool read_timestamp(Timestamp &t) ;
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/// Reads the next 3 fields that should form a Point3D
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bool read_point3d(Point3D &p) ;
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//@}
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} ;
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/* *** Operations *** */
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template<class T>
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inline bool CSVStringReader::read_field(T &field)
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{
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if (token_iterator == current_token->end())
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return false ;
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++current_field_nb ;
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try
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{
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field = boost::lexical_cast<T>(*token_iterator) ;
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}
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catch (boost::bad_lexical_cast &e)
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{
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print_error_cast() ;
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return false ;
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}
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++token_iterator ;
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return true ;
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}
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#endif // _OWLPS_POSITIONING_CSVREADER_HH_
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