Method sprintf

core/string/ustring.cpp:5465–5849

}

String String::sprintf(const Array &values, bool *error) const {
	static const String ZERO("0");
	static const String SPACE(" ");
	static const String MINUS("-");
	static const String PLUS("+");

	String formatted;
	char32_t *self = (char32_t *)get_data();
	bool in_format = false;
	int value_index = 0;
	int min_chars = 0;
	int min_decimals = 0;
	bool in_decimals = false;
	bool pad_with_zeros = false;
	bool left_justified = false;
	bool show_sign = false;
	bool as_unsigned = false;

	if (error) {
		*error = true;
	}

	for (; *self; self++) {
		const char32_t c = *self;

		if (in_format) { // We have % - let's see what else we get.
			switch (c) {
				case '%': { // Replace %% with %
					formatted += c;
					in_format = false;
					break;
				}
				case 'd': // Integer (signed)
				case 'o': // Octal
				case 'x': // Hexadecimal (lowercase)
				case 'X': { // Hexadecimal (uppercase)
					if (value_index >= values.size()) {
						return "not enough arguments for format string";
					}

					if (!values[value_index].is_num()) {
						return "a number is required";
					}

					int64_t value = values[value_index];
					int base = 16;
					bool capitalize = false;
					switch (c) {
						case 'd':
							base = 10;
							break;
						case 'o':
							base = 8;
							break;
						case 'x':
							break;
						case 'X':
							capitalize = true;