package feragstring import "fmt" type ControlCharacterSet struct { DontProduce bool BundlesToSecondaryExit bool } func NewControlCharacterSet() *ControlCharacterSet { cc := ControlCharacterSet{ DontProduce: false, BundlesToSecondaryExit: false, } return &cc } func (cc *ControlCharacterSet) SetDontProduce() { cc.DontProduce = true } func (cc *ControlCharacterSet) SetBundlesToSecondaryExit() { cc.BundlesToSecondaryExit = true } func (cc *ControlCharacterSet) GetControlCharactersMessage() string { var ccCount int var ccString string if cc.DontProduce == true { ccString += "D" ccCount++ } if cc.BundlesToSecondaryExit == true { ccString += "T" ccCount++ } if ccCount == 0 { return "" } return fmt.Sprintf("+14%-16s", ccString) }