| 148 | |
| 149 | const filterEmpty = Chunk.filter<string>((line) => line.length > 0) |
| 150 | const filterEmptyChannel = <IE, Done>() => { |
| 151 | const loop: Channel.Channel< |
| 152 | Chunk.Chunk<string>, |
| 153 | Chunk.Chunk<string>, |
| 154 | IE, |
| 155 | IE, |
| 156 | Done, |
| 157 | Done, |
| 158 | never |
| 159 | > = Channel.readWithCause({ |
| 160 | onInput(input: Chunk.Chunk<string>) { |
| 161 | const filtered = filterEmpty(input) |
| 162 | return Channel.zipRight(Chunk.isEmpty(filtered) ? Channel.void : Channel.write(filtered), loop) |
| 163 | }, |
| 164 | onFailure(cause: Cause.Cause<IE>) { |
| 165 | return Channel.failCause(cause) |
| 166 | }, |
| 167 | onDone(done: Done) { |
| 168 | return Channel.succeed(done) |
| 169 | } |
| 170 | }) |
| 171 | return loop |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * @since 1.0.0 |