code: func ParseIntoFile(s string, dest map[string]interface{}, runesToVal runesToVal) error {
  	scanner := bytes.NewBufferString(s)
  	t := newFileParser(scanner, dest, runesToVal)
  	return t.parse()
  }
docs: // ParseIntoFile parses a filevals line and merges the result into dest.
  //
  // This method always returns a string as the value.