//****************************************************************************
// Filename: Csv.h
// Copyright 1999 Daniel X. Pape. All rights reserved.
//
// Description: A parser for a string of comma separated values.
//
// This is based on a similar class described in "The Practice of
// Programming" by Brian W. Kernighan and Rob Pike.
//
// Sample input: "foo",1,1.485,"la la lala","poit"
//
//****************************************************************************
// Revision History:
// Sunday, July 11, 1999 - Original
//****************************************************************************

#ifndef _CSV_H_
#define _CSV_H_

#ifdef _MSC_VER
// Disable stupid MSVC warning about identifiers > 255 chars long
#pragma warning (disable: 4786)
#endif

#include <string>
#include <vector> 


class Csv 
{
public:
    
// typedefs

    typedef std::vector<std::string> cont_t;
    typedef cont_t::value_type value_type;
#ifndef _MSC_VER
    typedef cont_t::pointer pointer;
    typedef cont_t::const_pointer const_pointer;
#endif
    typedef cont_t::iterator iterator;
    typedef cont_t::const_iterator const_iterator;
    typedef cont_t::reference reference;
    typedef cont_t::const_reference const_reference;
    typedef cont_t::size_type size_type;
    typedef cont_t::difference_type difference_type;

    Csv(std::string line, std::string sep = ",");

    std::string GetField(size_type n);
    size_type GetNField(void) const { return nField_; }

    iterator begin() { return fields_.begin(); }
    const_iterator begin() const { return fields_.begin(); }
    iterator end() { return fields_.end(); }
    const_iterator end() const { return fields_.end(); }
    
    size_type size() const { return fields_.size(); }
    bool empty() const { return fields_.empty(); }

    reference operator[](size_type n) { return fields_[n]; }
    const_reference operator[](size_type n) const { return fields_[n]; }

private:

    Csv(const Csv &);
    Csv & operator=(const Csv &);

    cont_t fields_;
    size_type nField_;
    std::string line_;
    std::string fieldSep_;
    
    int split(void);
    int advPlain(const std::string& line, std::string& field, size_type);
    int advQuoted(const std::string& line, std::string& field, size_type);

};

#endif