19 lines
312 B
Go
19 lines
312 B
Go
|
package main
|
||
|
|
import "io"
|
||
|
|
import "code.squareroundforest.org/arpio/wand"
|
||
|
|
func main() {
|
||
|
|
wand.Exec(func(in io.Reader) (out io.Reader) {
|
||
|
|
buf := make([]byte, 1)
|
||
|
|
for {
|
||
|
|
n, err := in.Read(buf)
|
||
|
|
if n == 1 {
|
||
|
|
buf[0] = buf[0] * 2
|
||
|
|
out.Write(buf)
|
||
|
|
}
|
||
|
|
|
||
|
|
if err != nil {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|