mfer/internal/cli/misc.go

33 lines
536 B
Go

package cli
import "fmt"
// FIXME make this write to a bytes.Buffer with fprintf
func dumpByteSlice(b []byte) {
var a [16]byte
n := (len(b) + 15) &^ 15
for i := 0; i < n; i++ {
if i%16 == 0 {
fmt.Printf("%4d", i)
}
if i%8 == 0 {
fmt.Print(" ")
}
if i < len(b) {
fmt.Printf(" %02X", b[i])
} else {
fmt.Print(" ")
}
if i >= len(b) {
a[i%16] = ' '
} else if b[i] < 32 || b[i] > 126 {
a[i%16] = '.'
} else {
a[i%16] = b[i]
}
if i%16 == 15 {
fmt.Printf(" %s\n", string(a[:]))
}
}
}