Function GrpToChn

server/store/types/types.go:212–221

GrpToChn converts group topic name to corresponding channel name. If it's a non-group channel topic, the name is returned unchanged. If it's neither, an empty string is returned.

(grp string)

// If it's a non-group channel topic, the name is returned unchanged.
// If it's neither, an empty string is returned.
func GrpToChn(grp string) string {
	if strings.HasPrefix(grp, "grp") {
		return strings.Replace(grp, "grp", "chn", 1)
	}
	// Return unchanged if it's a channel already.
	if strings.HasPrefix(grp, "chn") {
		return grp
	}
	return ""
}

// IsChannel checks if the given topic name is a reference to a channel.
// The "nch" should not be considered a channel reference because it can only be used by the topic owner at the time of