values.go

package main

type ValuesStruct struct {
	key   string
	value string

	InterpretFunc func(string) (string, error)
}

func MakeValueStruct(Key string, Interpret func(string) (string, error)) (*ValuesStruct, error) {
	var TS ValuesStruct
	var err error

	TS.key = Key
	TS.InterpretFunc = Interpret

	return &TS, err
}

func (o *ValuesStruct) GetKey() string {
	return o.key
}

func (o *ValuesStruct) GetValue() string {
	return o.value
}

func (o *ValuesStruct) Ingest(Value string) (IsNew bool, err error) {
	var NewValue string

	NewValue, err = o.InterpretFunc(Value)
	if err != nil {
		return false, err
	} else if NewValue == o.value {
		return false, nil
	}

	o.value = NewValue
	return true, err
}