Function parseLanguageList

dql/parser.go:2747–2779

(it *lex.ItemIterator)

}

func parseLanguageList(it *lex.ItemIterator) ([]string, error) {
	item := it.Item()
	var langs []string
	for ; item.Typ == itemName || item.Typ == itemPeriod || item.Typ == itemStar; item = it.Item() {
		langs = append(langs, item.Val)
		it.Next()
		if it.Item().Typ == itemColon {
			it.Next()
		} else {
			break
		}
	}
	if it.Item().Typ == itemPeriod {
		peekIt, err := it.Peek(1)
		if err != nil {
			return nil, err
		}
		if peekIt[0].Typ == itemPeriod {
			return nil, it.Errorf("Expected only one dot(.) while parsing language list.")
		}
	}
	it.Prev()

	for _, lang := range langs {
		if lang == string(star) && len(langs) > 1 {
			return nil, errors.Errorf(
				"If * is used, no other languages are allowed in the language list. Found %v",
				langs)
		}
	}

	return langs, nil
}

func validKeyAtRoot(k string) bool {
	switch k {