/**
* create: 2014-08-02
* author: longwc@uway.cn
*/
#include "cxxlib2/str/csvparser.hpp"
#include <string.h>
namespace cpp {
namespace str {
csv_parser::csv_parser(const char* input, char delimiter)
: begin_(input), end_(input + strlen(input)),
delim_(delimiter)
{
parse();
}
csv_parser::csv_parser(const std::string& input, char delimiter)
: begin_(input.c_str()), end_(begin_ + input.size()),
delim_(delimiter)
{
parse();
}
csv_parser::csv_parser(const char* begin, const char* end, char delimiter)
: begin_(begin), end_(end),
delim_(delimiter)
{
parse();
}
size_t csv_parser::size() const
{
return field_.size();
}
bool csv_parser::empty() const
{
return field_.empty();
}
const csv_parser::string_t& csv_parser::at(size_t index) const
{
return field_[index];
}
const char* csv_parser::input() const
{
return begin_;
}
const csv_parser::fields_t& csv_parser::field() const
{
return field_;
}
std::string csv_parser::operator[](size_t index) const
{
const string_t& r = field_[index];
return std::string(begin_ + r.first, begin_ + r.second);
}
enum csv_parser_state {
unquoted, in_quoted, quote_in_quoted
};
void csv_parser::parse()
{
size_t start = 0;
size_t len = 0;
bool line = true;
bool nil = false;
field_.clear();
const char* ptr = begin_;
while(ptr != end_ && line) {
if(*ptr == delim_) {
field_.push_back(std::make_pair(start, start + len));
start = start + len + 1;
len = 0;
nil = true;
ptr++;
}
else if(*ptr == '\r' || *ptr == '\n') {
field_.push_back(std::make_pair(start, start + len));
len = 0;
line = false;
}
else {
nil = false;
len++;
ptr++;
}
}
if(len != 0 || nil) {
field_.push_back(std::make_pair(start, start + len));
}
}
}
}
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