Class for fast parsing of CSV file (never more than one line in application memory). More...

#include <agrum/base/database/CSVParser.h>

Public Member Functions
Constructors / Destructors
	CSVParser (std::istream &in, const std::string &filename, const std::string &delimiter=",", const char commentmarker='#', const char quoteMarker='"')
	default constructor
virtual	~CSVParser ()
	destructor
Accessors / Modifiers
bool	next ()
	gets the next line of the csv stream and parses it
const std::vector< std::string > &	current () const
	returns the current parsed line
std::size_t	nbLine () const
	returns the current line number within the stream
void	useNewStream (std::istream &in, const std::string &delimiter=",", const char commentmarker='#', const char quoteMarker='"')
	reopens a new input stream to parse

Detailed Description

Class for fast parsing of CSV file (never more than one line in application memory).

Typical use:

// open the CSV file
std::string filename="foo.csv"
std::ifstream in(filename.c_str());
gum::learning::CSVParser csvp(in);
 
// read each line in the CSV file
while (csvp.next()) {
 csvp.current ();
}
 
in.close();

Definition at line 77 of file CSVParser.h.

Constructor & Destructor Documentation

◆ CSVParser()

gum::learning::CSVParser::CSVParser	(	std::istream &	in,
		const std::string &	filename,
		const std::string &	delimiter = ",",
		const char	commentmarker = '#',
		const char	quoteMarker = '"' )

default constructor

Parameters

in	an input stream containing the CSV
delimiter	the character that acts as the column separator in the CSV
commentmarker	the character that marks the beginning of a comment
quoteMarker	the character that is used to quote the sentences in the CSV

◆ ~CSVParser()

virtual gum::learning::CSVParser::~CSVParser ( )

virtual

destructor

Member Function Documentation

◆ current()

const std::vector< std::string > & gum::learning::CSVParser::current ( ) const

returns the current parsed line

Exceptions

NullElement is raised if there is no data

◆ nbLine()

std::size_t gum::learning::CSVParser::nbLine ( ) const

returns the current line number within the stream

◆ next()

bool gum::learning::CSVParser::next ( )

gets the next line of the csv stream and parses it

Returns: false if there is no next line

◆ useNewStream()

void gum::learning::CSVParser::useNewStream	(	std::istream &	in,
		const std::string &	delimiter = ",",
		const char	commentmarker = '#',
		const char	quoteMarker = '"' )

reopens a new input stream to parse

The documentation for this class was generated from the following file:

agrum/base/database/CSVParser.h

Public Member Functions