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![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-6-320.jpg)
![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr
ICANON(2bit )](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-7-320.jpg)
![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr
VMIN / VTIME](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-8-320.jpg)
![github.com/pkg/term
// Cfmakeraw modifies attr for raw mode.
func Cfmakeraw(attr *syscall.Termios) {
attr.Iflag &^= syscall.BRKINT | syscall.ICRNL |
syscall.INPCK | syscall.ISTRIP | syscall.IXON
attr.Oflag &^= syscall.OPOST
attr.Cflag &^= syscall.CSIZE | syscall.PARENB
attr.Cflag |= syscall.CS8
attr.Lflag &^= syscall.ECHO | syscall.ICANON |
syscall.IEXTEN | syscall.ISIG
attr.Cc[syscall.VMIN] = 1
attr.Cc[syscall.VTIME] = 0
}
https://github.com/pkg/term/blob/master/termios/termios.go](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-10-320.jpg)
![https://github.com/c-bata/go-prompt/blob/master/vt100_input.go
Byte
var asciiSequences []*ASCIICode = []*ASCIICode{
{Key: Escape, ASCIICode: []byte{0x1b}},
{Key: ControlSpace, ASCIICode: []byte{0x00}},
{Key: ControlA, ASCIICode: []byte{0x1}},
{Key: ControlB, ASCIICode: []byte{0x2}},
{Key: ControlC, ASCIICode: []byte{0x3}},
{Key: ControlD, ASCIICode: []byte{0x4}},
{Key: ControlE, ASCIICode: []byte{0x5}},
{Key: ControlF, ASCIICode: []byte{0x6}},
{Key: ControlG, ASCIICode: []byte{0x7}},
{Key: ControlH, ASCIICode: []byte{0x8}},
:
}](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-11-320.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-19-320.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
Control Sequence Introducer (CSI)](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-20-320.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
: :](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-21-320.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
Final Character](https://image.slidesharecdn.com/uploading-170906142935/85/Golang-UI-22-320.jpg)
![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-6-2048.jpg)
![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr
ICANON(2bit )](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-7-2048.jpg)
![https://golang.org/pkg/syscall/#Termios
type Termios struct {
Iflag uint32
Oflag uint32
Cflag uint32
Lflag uint32
Line uint8
Cc [32]uint8
Pad_cgo_0 [3]byte
Ispeed uint32
Ospeed uint32
}
termios tcgetattr / tcsetattr
VMIN / VTIME](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-8-2048.jpg)
![github.com/pkg/term
// Cfmakeraw modifies attr for raw mode.
func Cfmakeraw(attr *syscall.Termios) {
attr.Iflag &^= syscall.BRKINT | syscall.ICRNL |
syscall.INPCK | syscall.ISTRIP | syscall.IXON
attr.Oflag &^= syscall.OPOST
attr.Cflag &^= syscall.CSIZE | syscall.PARENB
attr.Cflag |= syscall.CS8
attr.Lflag &^= syscall.ECHO | syscall.ICANON |
syscall.IEXTEN | syscall.ISIG
attr.Cc[syscall.VMIN] = 1
attr.Cc[syscall.VTIME] = 0
}
https://github.com/pkg/term/blob/master/termios/termios.go](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-10-2048.jpg)
![https://github.com/c-bata/go-prompt/blob/master/vt100_input.go
Byte
var asciiSequences []*ASCIICode = []*ASCIICode{
{Key: Escape, ASCIICode: []byte{0x1b}},
{Key: ControlSpace, ASCIICode: []byte{0x00}},
{Key: ControlA, ASCIICode: []byte{0x1}},
{Key: ControlB, ASCIICode: []byte{0x2}},
{Key: ControlC, ASCIICode: []byte{0x3}},
{Key: ControlD, ASCIICode: []byte{0x4}},
{Key: ControlE, ASCIICode: []byte{0x5}},
{Key: ControlF, ASCIICode: []byte{0x6}},
{Key: ControlG, ASCIICode: []byte{0x7}},
{Key: ControlH, ASCIICode: []byte{0x8}},
:
}](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-11-2048.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-19-2048.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
Control Sequence Introducer (CSI)](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-20-2048.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
: :](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-21-2048.jpg)
![VT100
syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m"))
syscall.Write(syscall.Stdin, []byte("Hello Worldn"))
syscall.Write(syscall.Stdin, []byte("x1b[0m"))
http://vt100.net/docs/vt100-ug/chapter3.html
x1b[ 4;30;46 m
Final Character](https://image.slidesharecdn.com/uploading-170906142935/75/Golang-UI-22-2048.jpg)
Uploaded byMasashi Shibata
Golangにおける端末制御 リッチなターミナルUIの実現方法
The document discusses terminal input/output and window resizing in Go. It covers terminal modes like canonical, non-canonical, and raw modes. It describes the termios struct and how it is used to configure terminal settings. It also discusses VT100 escape sequences for color and formatting text. Finally, it mentions using ioctl with TIOCGWINSZ to get the window size and handling SIGWINCH signals to detect resizes.
More Related Content
Golangにおける端末制御 リッチなターミナルUIの実現方法
- 1.
- 2.
- 3. Topic 1 termios canonical mode/ non-canonical mode raw mode / cbreak mode termios structure KEYWORDS
- 4.
- 5.
- 6. https://golang.org/pkg/syscall/#Termios type Termios struct{ Iflag uint32 Oflag uint32 Cflag uint32 Lflag uint32 Line uint8 Cc [32]uint8 Pad_cgo_0 [3]byte Ispeed uint32 Ospeed uint32 } termios tcgetattr / tcsetattr
- 7. https://golang.org/pkg/syscall/#Termios type Termios struct{ Iflag uint32 Oflag uint32 Cflag uint32 Lflag uint32 Line uint8 Cc [32]uint8 Pad_cgo_0 [3]byte Ispeed uint32 Ospeed uint32 } termios tcgetattr / tcsetattr ICANON(2bit )
- 8. https://golang.org/pkg/syscall/#Termios type Termios struct{ Iflag uint32 Oflag uint32 Cflag uint32 Lflag uint32 Line uint8 Cc [32]uint8 Pad_cgo_0 [3]byte Ispeed uint32 Ospeed uint32 } termios tcgetattr / tcsetattr VMIN / VTIME
- 9. raw raw mode VMIN=1 /VTIME=0
- 10. github.com/pkg/term // Cfmakeraw modifiesattr for raw mode. func Cfmakeraw(attr *syscall.Termios) { attr.Iflag &^= syscall.BRKINT | syscall.ICRNL | syscall.INPCK | syscall.ISTRIP | syscall.IXON attr.Oflag &^= syscall.OPOST attr.Cflag &^= syscall.CSIZE | syscall.PARENB attr.Cflag |= syscall.CS8 attr.Lflag &^= syscall.ECHO | syscall.ICANON | syscall.IEXTEN | syscall.ISIG attr.Cc[syscall.VMIN] = 1 attr.Cc[syscall.VTIME] = 0 } https://github.com/pkg/term/blob/master/termios/termios.go
- 11. https://github.com/c-bata/go-prompt/blob/master/vt100_input.go Byte var asciiSequences []*ASCIICode= []*ASCIICode{ {Key: Escape, ASCIICode: []byte{0x1b}}, {Key: ControlSpace, ASCIICode: []byte{0x00}}, {Key: ControlA, ASCIICode: []byte{0x1}}, {Key: ControlB, ASCIICode: []byte{0x2}}, {Key: ControlC, ASCIICode: []byte{0x3}}, {Key: ControlD, ASCIICode: []byte{0x4}}, {Key: ControlE, ASCIICode: []byte{0x5}}, {Key: ControlF, ASCIICode: []byte{0x6}}, {Key: ControlG, ASCIICode: []byte{0x7}}, {Key: ControlH, ASCIICode: []byte{0x8}}, : }
- 12.
- 13. Topic 2 VT100 digitalterminal device Escape sequences KEYWORDS
- 14.
- 15.
- 16.
- 17.
- 18.
- 19. VT100 syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m")) syscall.Write(syscall.Stdin, []byte("HelloWorldn")) syscall.Write(syscall.Stdin, []byte("x1b[0m")) http://vt100.net/docs/vt100-ug/chapter3.html
- 20. VT100 syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m")) syscall.Write(syscall.Stdin, []byte("HelloWorldn")) syscall.Write(syscall.Stdin, []byte("x1b[0m")) http://vt100.net/docs/vt100-ug/chapter3.html x1b[ 4;30;46 m Control Sequence Introducer (CSI)
- 21. VT100 syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m")) syscall.Write(syscall.Stdin, []byte("HelloWorldn")) syscall.Write(syscall.Stdin, []byte("x1b[0m")) http://vt100.net/docs/vt100-ug/chapter3.html x1b[ 4;30;46 m : :
- 22. VT100 syscall.Write(syscall.Stdin, []byte("x1b[4;30;46m")) syscall.Write(syscall.Stdin, []byte("HelloWorldn")) syscall.Write(syscall.Stdin, []byte("x1b[0m")) http://vt100.net/docs/vt100-ug/chapter3.html x1b[ 4;30;46 m Final Character
- 23. Topic 3 ioctl systemcall and TIOCGWINSZ SIGWINCH KEYWORDS
- 25.
- 27. Window https://github.com/c-bata/go-prompt/blob/master/_tools/window_size.go func GetWinSize(fd int)(row, col uint16, err error) { var ws *winsize retCode, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(syscall.Stdin), uintptr(syscall.TIOCGWINSZ), uintptr(unsafe.Pointer(ws))) if int(retCode) == -1 { return 0, 0, fmt.Errorf(“failed with %d”, retCode) } return ws.Row, ws.Col, nil } ioctl TIOCGWINSZ SIGWINCH
- 28.