Method parsePath

parse.go:41–79

(c context.Context)

}

func (p *parser) parsePath(c context.Context) error {
	switch p.Scan() {
	case '.':
		return p.parseSelect(c)
	case '[':
		keys, seperator, err := p.parseBracket(c)

		if err != nil {
			return err
		}

		switch seperator {
		case ':':
			if len(keys) > 3 {
				return fmt.Errorf("range query has at least the parameter [min:max:step]")
			}
			keys = append(keys, []gval.Evaluable{
				p.Const(0), p.Const(float64(math.MaxInt32)), p.Const(1)}[len(keys):]...)
			p.appendAmbiguousSelector(rangeSelector(keys[0], keys[1], keys[2]))
		case '?':
			if len(keys) != 1 {
				return fmt.Errorf("filter needs exactly one key")
			}
			p.appendAmbiguousSelector(filterSelector(keys[0]))
		default:
			if len(keys) == 1 {
				p.appendPlainSelector(directSelector(keys[0]))
			} else {
				p.appendAmbiguousSelector(multiSelector(keys))
			}
		}
		return p.parsePath(c)
	case '(':
		return p.parseScript(c)
	default:
		p.Camouflage("jsonpath", '.', '[', '(')
		return nil
	}
}

func (p *parser) parseSelect(c context.Context) error {
	scan := p.Scan()