Function parsePrecisionV2

ext/formatting_v2.go:765–793

(formatStr string, maxPrecision int)

}

func parsePrecisionV2(formatStr string, maxPrecision int) (int, int, error) {
	i := 0
	if formatStr[i] != '.' {
		return i, defaultPrecision, nil
	}
	i++
	var buffer strings.Builder
	for {
		if i >= len(formatStr) {
			return -1, -1, errors.New("could not find end of precision specifier")
		}
		if !isASCIIDigit(rune(formatStr[i])) {
			break
		}
		buffer.WriteByte(formatStr[i])
		i++
	}
	precision, err := strconv.Atoi(buffer.String())
	if err != nil {
		return -1, -1, fmt.Errorf("error while converting precision to integer: %w", err)
	}
	if precision < 0 {
		return -1, -1, fmt.Errorf("negative precision: %d", precision)
	}
	if maxPrecision > 0 && precision > maxPrecision {
		return -1, -1, fmt.Errorf("precision %d exceeds maximum allowed precision %d", precision, maxPrecision)
	}
	return i, precision, nil
}