136 lines
2.6 KiB
C++
136 lines
2.6 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-Comté
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* (Université de Franche-Comté), France.
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*/
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#include "csvfilereader.hh"
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#include "point3d.hh"
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#include <iostream>
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using namespace std ;
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using namespace boost ;
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/* *** Constructors *** */
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CSVFileReader::~CSVFileReader()
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{
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delete current_token ;
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}
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/* *** Operations *** */
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/**
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* Note that this function is not called by the constructor, so you
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* must manually call it prior to use read_field().
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* @return \em false in case of error (EOF, etc.), \em true else.
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*/
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bool CSVFileReader::next_line()
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{
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delete current_token ;
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current_token = NULL ;
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if (! read_nonblank_line(current_line))
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return false ;
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// Split read string into fields (semicolon-separated)
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current_token = new tokenizer<escaped_list_separator<char> >(
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current_line, escaped_list_separator<char>('\\', separator, '\"')) ;
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token_iterator = current_token->begin() ;
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current_field_nb = 0 ;
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return true ;
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}
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bool CSVFileReader::read_timestamp(Timestamp &t)
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{
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string timestamp_str ;
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uint_fast32_t time_s, time_ns ;
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if (! read_field(timestamp_str))
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return false ;
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tokenizer<escaped_list_separator<char> > tok(
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timestamp_str, escaped_list_separator<char>('\\', '.', '\"')) ;
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tokenizer<escaped_list_separator<char> >::const_iterator tok_iter =
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tok.begin() ;
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if (tok_iter == tok.end())
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return false ;
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try
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{
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time_s = lexical_cast<uint_fast32_t>(*tok_iter) ;
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}
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catch (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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++tok_iter ;
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if (tok_iter == tok.end())
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return false ;
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try
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{
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time_ns = lexical_cast<uint_fast32_t>(*tok_iter) ;
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}
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catch (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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t = Timestamp(time_s, time_ns) ;
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return true ;
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}
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bool CSVFileReader::read_point3d(Point3D &p)
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{
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float coord[3] ;
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for (unsigned int i = 0 ; i < 3 ; ++i)
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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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coord[i] = lexical_cast<float>(*token_iterator) ;
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}
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catch (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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}
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p.set_coordinates(coord) ;
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return true ;
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}
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void CSVFileReader::print_error_cast() const
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{
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cerr
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<< "Bad value \""
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<< *token_iterator << "\" at line "
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<< current_line_nb << ", field #"
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<< current_field_nb << ", of input file \""
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<< file_name << "\"!" << endl ;
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}
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