Function stringToRat

lib/execution_segment.go:73–86

stringToRat is a helper function that tries to convert a string to a rational number while allowing percentage, decimal, and fraction values.

(s string)

// stringToRat is a helper function that tries to convert a string to a rational
// number while allowing percentage, decimal, and fraction values.
func stringToRat(s string) (*big.Rat, error) {
	if before, ok := strings.CutSuffix(s, "%"); ok {
		num, ok := new(big.Int).SetString(before, 10)
		if !ok {
			return nil, fmt.Errorf("'%s' is not a valid percentage", s)
		}
		return new(big.Rat).SetFrac(num, big.NewInt(100)), nil
	}
	rat, ok := new(big.Rat).SetString(s)
	if !ok {
		return nil, fmt.Errorf("'%s' is not a valid percentage, decimal, fraction or interval value", s)
	}
	return rat, nil
}

// NewExecutionSegmentFromString validates the supplied string value and returns
// the newly created ExecutionSegment or and error from it.