var PL_EN_LETTERS_MAPPING = {
	'ą': 'a',
	'ć': 'c',
	'ę': 'e',
	'ł': 'l',
	'ń': 'n',
	'ó': 'o',
	'ś': 's',
	'ź': 'z',
	'ż': 'z',
	'„': '"',
	'”': '"'
};
function replaceAt(value, index, replacement) {
	return value.substr(0, index) + replacement + value.substr(index + replacement.length);
}
function convertToStringIdentifier(value) {
	let identifier = value.toLowerCase();
	for (let i = 0; i < identifier.length; i++) {
		const currentChar = identifier.charAt(i);
		const en_letter = PL_EN_LETTERS_MAPPING[currentChar];
		if (en_letter) {
			identifier = replaceAt(identifier, i, en_letter);
		}
	}
	return identifier;
}