func ExampleNewRunLengthEncoder() {
var s string
rle := missinggo.NewRunLengthEncoder(func(e interface{}, count uint64) {
s += fmt.Sprintf("%d%c", count, e)
})
for _, e := range "WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWBWWWWWWWWWWWWWW" {
rle.Append(e, 1)
}
rle.Flush()
fmt.Println(s)
// Output: 12W1B12W3B24W1B14W
}
func (t *torrent) pieceStateRuns() (ret []PieceStateRun) {
rle := missinggo.NewRunLengthEncoder(func(el interface{}, count uint64) {
ret = append(ret, PieceStateRun{
PieceState: el.(PieceState),
Length: int(count),
})
})
for index := range t.Pieces {
rle.Append(t.pieceState(index), 1)
}
rle.Flush()
return
}