Method sort

src/csvdatastorage.cpp:118–176

sort(int column, bool ascending, int sortType) sortType 0:Numerical, 1:String, 2:String (ignore case) – default: 1 */

	sortType 0:Numerical, 1:String, 2:String (ignore case) – default: 1
 */
void CsvDataStorage::sort(table_index_t column, bool ascending, int sortType) {

	if( rows() <= 1 || column < 0 || column >= columns() ) {
		return;
	}

	long counter = 0;
	std::sort( tableData.begin(), tableData.end(), [&column, &ascending, &sortType, &counter](const auto& lhs, const auto& rhs) {
		std::string s1 = getColumn(lhs, column);
		std::string s2 = getColumn(rhs, column);
		double d1, d2;
		std::string lowerS1;
		std::string lowerS2;
		if( counter % 50000 == 0 ) {
			Fl::check();
		}
		++counter;
		switch( sortType ) {
			case 0:		// NUMERIC
				// TODO make this optional
				// std::replace( s1.begin(), s1.end(), ',', '.');
				// std::replace( s2.begin(), s2.end(), ',', '.');
				try {
					d1 = std::stod(s1);
				} catch(const std::exception&) {
					d1 = 0;
				}
				try {
					d2 = std::stod(s2);
				} catch(const std::exception&) {
					d2 = 0;
				}
				if( ascending ) {
					return d1 < d2;
				} else {
					return d1 > d2;
				}
			break;
			case 1:		// STRING with case
				if( ascending )
					return s1 < s2;
				else
					return s1 > s2;
			break;
			case 2:		// STRING ignore case
				lowerS1 = Utf8CppUtils::utf8::casefold(s1);
				lowerS2 = Utf8CppUtils::utf8::casefold(s2);
				if( ascending )
					return lowerS1 < lowerS2;
				else
					return lowerS1 > lowerS2;
			break;
			default:
				return true;
		}
	});