Function grep

regexp/regexp_test.go:165–189

(re *Regexp, b []byte)

}

func grep(re *Regexp, b []byte) []int {
	var m []int
	lineno := 1
	for {
		i := re.Match(b, true, true)
		if i < 0 {
			break
		}
		start := bytes.LastIndex(b[:i], nl) + 1
		end := i + 1
		if end > len(b) {
			end = len(b)
		}
		lineno += bytes.Count(b[:start], nl)
		m = append(m, lineno)
		if start < end && b[end-1] == '\n' {
			lineno++
		}
		b = b[end:]
		if len(b) == 0 {
			break
		}
	}
	return m
}

var grepTests = []struct {
	re  string