35 

    36 // ErrEmptyKeyName indicates the error type of no key name is found which there should be one.

    37 type ErrEmptyKeyName struct {

    38 	Line string

    39 }

    40 

    41 // IsErrEmptyKeyName returns true if the given error is an instance of ErrEmptyKeyName.

    42 func IsErrEmptyKeyName(err error) bool {

    43 	_, ok := err.(ErrEmptyKeyName)

    44 	return ok

    45 }

    46 

    47 func (err ErrEmptyKeyName) Error() string {

    48 	return fmt.Sprintf("empty key name: %s", err.Line)

    49 }