Function Parse

src/go/pkg/selectorcore/parse.go:18–41

Parse parses one selector expression.

(expr string)

// Parse parses one selector expression.
func Parse(expr string) (Selector, error) {
	terms, err := splitSelectorTerms(unsugarExpr(expr))
	if err != nil {
		return nil, err
	}

	srs := make([]Selector, 0, len(terms))
	for _, term := range terms {
		sr, err := parseSelector(term)
		if err != nil {
			return nil, err
		}
		srs = append(srs, sr)
	}

	switch len(srs) {
	case 0:
		return nil, nil
	case 1:
		return srs[0], nil
	default:
		return And(srs[0], srs[1], srs[2:]...), nil
	}
}

func parseSelector(line string) (Selector, error) {
	sub := reLV.FindStringSubmatch(strings.TrimSpace(line))