support meta-{backspace,left,right} key.

emacs.go

@@ -94,20 +94,40 @@ var emacsKeyBindings = []KeyBind{
 			buf.CursorRight(1)
 		},
 	},
+	// Alt Right allow: Forward one word
+	{
+		Key: AltRight,
+		Fn: func(buf *Buffer) {
+			buf.CursorRight(buf.Document().FindEndOfCurrentWordWithSpace())
+		},
+	},
 	// Left allow: Backward one character
 	{
 		Key: ControlB,
 		Fn: func(buf *Buffer) {
 			buf.CursorLeft(1)
 		},
 	},
+	// Alt Left allow: Backward one word
+	{
+		Key: AltLeft,
+		Fn: func(buf *Buffer) {
+			buf.CursorLeft(len([]rune(buf.Document().TextBeforeCursor())) - buf.Document().FindStartOfPreviousWordWithSpace())
+		},
+	},
 	// Cut the Word before the cursor.
 	{
 		Key: ControlW,
 		Fn: func(buf *Buffer) {
 			buf.DeleteBeforeCursor(len([]rune(buf.Document().GetWordBeforeCursorWithSpace())))
 		},
 	},
+	{
+		Key: AltBackspace,
+		Fn: func(buf *Buffer) {
+			buf.DeleteBeforeCursor(len([]rune(buf.Document().GetWordBeforeCursorWithSpace())))
+		},
+	},
 	// Clear the Screen, similar to the clear command
 	{
 		Key: ControlL,

go.mod

@@ -1,6 +1,6 @@
 module github.com/c-bata/go-prompt
 
-go 1.14
+go 1.22
 
 require (
 	github.com/mattn/go-colorable v0.1.7
@@ -9,3 +9,5 @@ require (
 	github.com/pkg/term v1.2.0-beta.2
 	golang.org/x/sys v0.0.0-20200918174421-af09f7315aff
 )
+
+require github.com/mattn/go-isatty v0.0.12 // indirect

input.go

@@ -67,11 +67,14 @@ var ASCIISequences = []*ASCIICode{
 	{Key: ControlCircumflex, ASCIICode: []byte{0x1e}},
 	{Key: ControlUnderscore, ASCIICode: []byte{0x1f}},
 	{Key: Backspace, ASCIICode: []byte{0x7f}},
+	{Key: AltBackspace, ASCIICode: []byte{0x1b, 0x7f}},
 
 	{Key: Up, ASCIICode: []byte{0x1b, 0x5b, 0x41}},
 	{Key: Down, ASCIICode: []byte{0x1b, 0x5b, 0x42}},
 	{Key: Right, ASCIICode: []byte{0x1b, 0x5b, 0x43}},
+	{Key: AltRight, ASCIICode: []byte{0x1b, 0x1b, 0x5b, 0x43}},
 	{Key: Left, ASCIICode: []byte{0x1b, 0x5b, 0x44}},
+	{Key: AltLeft, ASCIICode: []byte{0x1b, 0x1b, 0x5b, 0x44}},
 	{Key: Home, ASCIICode: []byte{0x1b, 0x5b, 0x48}},
 	{Key: Home, ASCIICode: []byte{0x1b, 0x30, 0x48}},
 	{Key: End, ASCIICode: []byte{0x1b, 0x5b, 0x46}},
@@ -166,4 +169,8 @@ var ASCIISequences = []*ASCIICode{
 
 	{Key: Ignore, ASCIICode: []byte{0x1b, 0x5b, 0x45}}, // Xterm
 	{Key: Ignore, ASCIICode: []byte{0x1b, 0x5b, 0x46}}, // Linux console
+
+	// MacOS Keybind
+	{Key: AltRight, ASCIICode: []byte{0x1b, 0x66}},
+	{Key: AltLeft, ASCIICode: []byte{0x1b, 0x62}},
 }

internal/term/raw.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package term
@@ -25,5 +26,5 @@ func SetRaw(fd int) error {
 	n.Cc[syscall.VMIN] = 1
 	n.Cc[syscall.VTIME] = 0
 
-	return termios.Tcsetattr(uintptr(fd), termios.TCSANOW, (*unix.Termios)(n))
+	return termios.Tcsetattr(uintptr(fd), termios.TCSANOW, (*unix.Termios)(&n))
 }

internal/term/term.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package term
@@ -15,13 +16,13 @@ var (
 	saveTermiosOnce sync.Once
 )
 
-func getOriginalTermios(fd int) (*unix.Termios, error) {
+func getOriginalTermios(fd int) (unix.Termios, error) {
 	var err error
 	saveTermiosOnce.Do(func() {
 		saveTermiosFD = fd
 		saveTermios, err = termios.Tcgetattr(uintptr(fd))
 	})
-	return saveTermios, err
+	return *saveTermios, err
 }
 
 // Restore terminal's mode.
@@ -30,5 +31,5 @@ func Restore() error {
 	if err != nil {
 		return err
 	}
-	return termios.Tcsetattr(uintptr(saveTermiosFD), termios.TCSANOW, o)
+	return termios.Tcsetattr(uintptr(saveTermiosFD), termios.TCSANOW, &o)
 }