log.Panicln(err)

			log.Println(err)
			continue

			// compare in lowercase when case-insensitive

			}
			if !c.match(matchLine, pattern) {
				continue
			}
			// write filenames only once when onlyFile is set
			if c.onlyFile {
				ret = append(ret, fname)
				break

			if c.match(matchLine, pattern) {
				if c.onlyFile {
					ret = append(ret, fname)
					break
				} else {
					var out strings.Builder
					if len(files) > 1 {
						out.WriteString(fname + ":")
					}
					if c.lineNum {
						out.WriteString(strconv.Itoa(i) + ":")
					}
					out.WriteString(line)
					ret = append(ret, out.String())
				}

			var out strings.Builder
			if len(files) > 1 {
				out.WriteString(fname + ":")
			}
			if c.lineNum {
				out.WriteString(strconv.Itoa(i) + ":")

			out.WriteString(line)
			ret = append(ret, out.String())