Method trim

opensca/sca/java/xml/marshal.go:1076–1090

trim updates the XML context to match the longest common prefix of the stack and the given parents. A closing tag will be written for every parent popped. Passing a zero slice or nil will close all the elements.

(parents []string)

// and the given parents. A closing tag will be written for every parent
// popped. Passing a zero slice or nil will close all the elements.
func (s *parentStack) trim(parents []string) error {
	split := 0
	for ; split < len(parents) && split < len(s.stack); split++ {
		if parents[split] != s.stack[split] {
			break
		}
	}
	for i := len(s.stack) - 1; i >= split; i-- {
		if err := s.p.writeEnd(Name{Local: s.stack[i]}); err != nil {
			return err
		}
	}
	s.stack = s.stack[:split]
	return nil
}

// push adds parent elements to the stack and writes open tags.
func (s *parentStack) push(parents []string) error {