go-prompt/key_bind.go

60 lines
1.1 KiB
Go

package prompt
// KeyBindFunc receives buffer and processed it.
type KeyBindFunc func(*Buffer)
// KeyBind represents which key should do what operation.
type KeyBind struct {
Key Key
Fn KeyBindFunc
}
// ASCIICodeBind represents which []byte should do what operation
type ASCIICodeBind struct {
ASCIICode []byte
Fn KeyBindFunc
}
// KeyBindMode to switch a key binding flexibly.
type KeyBindMode string
const (
// CommonKeyBind is a mode without any keyboard shortcut
CommonKeyBind KeyBindMode = "common"
// EmacsKeyBind is a mode to use emacs-like keyboard shortcut
EmacsKeyBind KeyBindMode = "emacs"
)
var commonKeyBindings = []KeyBind{
// Go to the End of the line
{
Key: End,
Fn: GoLineEnd,
},
// Go to the beginning of the line
{
Key: Home,
Fn: GoLineBeginning,
},
// Delete character under the cursor
{
Key: Delete,
Fn: DeleteChar,
},
// Backspace
{
Key: Backspace,
Fn: DeleteBeforeChar,
},
// Right allow: Forward one character
{
Key: Right,
Fn: GoRightChar,
},
// Left allow: Backward one character
{
Key: Left,
Fn: GoLeftChar,
},
}