| 38 | string Channel::join(string_view layer, string_view channel) { return fmt::format("{}.{}", layer, channel); } |
| 39 | |
| 40 | string Channel::joinIfNonempty(string_view layer, string_view channel) { |
| 41 | if (layer.empty()) { |
| 42 | return string{channel}; |
| 43 | } else if (channel.empty()) { |
| 44 | return string{layer}; |
| 45 | } else { |
| 46 | return Channel::join(layer, channel); |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | string_view Channel::tail(string_view channel) { return split(channel).second; } |
| 51 |