package term // import "github.com/docker/docker/pkg/term" import ( "fmt" "strings" ) // ASCII list the possible supported ASCII key sequence var ASCII = []string{ "ctrl-@", "ctrl-a", "ctrl-b", "ctrl-c", "ctrl-d", "ctrl-e", "ctrl-f", "ctrl-g", "ctrl-h", "ctrl-i", "ctrl-j", "ctrl-k", "ctrl-l", "ctrl-m", "ctrl-n", "ctrl-o", "ctrl-p", "ctrl-q", "ctrl-r", "ctrl-s", "ctrl-t", "ctrl-u", "ctrl-v", "ctrl-w", "ctrl-x", "ctrl-y", "ctrl-z", "ctrl-[", "ctrl-\\", "ctrl-]", "ctrl-^", "ctrl-_", } // ToBytes converts a string representing a suite of key-sequence to the corresponding ASCII code. func ToBytes(keys string) ([]byte, error) { codes := []byte{} next: for _, key := range strings.Split(keys, ",") { if len(key) != 1 { for code, ctrl := range ASCII { if ctrl == key { codes = append(codes, byte(code)) continue next } } if key == "DEL" { codes = append(codes, 127) } else { return nil, fmt.Errorf("Unknown character: '%s'", key) } } else { codes = append(codes, key[0]) } } return codes, nil }