Method String

index/regexp.go:283–330

()

}

func (q *Query) String() string {
	if q == nil {
		return "?"
	}
	if q.Op == QNone {
		return "-"
	}
	if q.Op == QAll {
		return "+"
	}

	if len(q.Sub) == 0 && len(q.Trigram) == 1 {
		return strconv.Quote(q.Trigram[0])
	}

	var (
		s     string
		sjoin string
		end   string
		tjoin string
	)
	if q.Op == QAnd {
		sjoin = " "
		tjoin = " "
	} else {
		s = "("
		sjoin = ")|("
		end = ")"
		tjoin = "|"
	}
	for i, t := range q.Trigram {
		if i > 0 {
			s += tjoin
		}
		s += strconv.Quote(t)
	}
	if len(q.Sub) > 0 {
		if len(q.Trigram) > 0 {
			s += sjoin
		}
		s += q.Sub[0].String()
		for i := 1; i < len(q.Sub); i++ {
			s += sjoin + q.Sub[i].String()
		}
	}
	s += end
	return s
}

// RegexpQuery returns a Query for the given regexp.
func RegexpQuery(re *syntax.Regexp) *Query {