forked from c-bata/go-prompt
/
input.go
169 lines (149 loc) · 7.45 KB
/
input.go
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package prompt
import "bytes"
// WinSize represents the width and height of terminal.
type WinSize struct {
Row uint16
Col uint16
}
// ConsoleParser is an interface to abstract input layer.
type ConsoleParser interface {
// Setup should be called before starting input
Setup() error
// TearDown should be called after stopping input
TearDown() error
// GetWinSize returns WinSize object to represent width and height of terminal.
GetWinSize() *WinSize
// Read returns byte array.
Read() ([]byte, error)
}
// GetKey returns Key correspond to input byte codes.
func GetKey(b []byte) Key {
for _, k := range ASCIISequences {
if bytes.Equal(k.ASCIICode, b) {
return k.Key
}
}
return NotDefined
}
// ASCIISequences holds mappings of the key and byte array.
var ASCIISequences = []*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}},
//{Key: ControlI, ASCIICode: []byte{0x9}},
//{Key: ControlJ, ASCIICode: []byte{0xa}},
{Key: ControlK, ASCIICode: []byte{0xb}},
{Key: ControlL, ASCIICode: []byte{0xc}},
{Key: ControlM, ASCIICode: []byte{0xd}},
{Key: ControlN, ASCIICode: []byte{0xe}},
{Key: ControlO, ASCIICode: []byte{0xf}},
{Key: ControlP, ASCIICode: []byte{0x10}},
{Key: ControlQ, ASCIICode: []byte{0x11}},
{Key: ControlR, ASCIICode: []byte{0x12}},
{Key: ControlS, ASCIICode: []byte{0x13}},
{Key: ControlT, ASCIICode: []byte{0x14}},
{Key: ControlU, ASCIICode: []byte{0x15}},
{Key: ControlV, ASCIICode: []byte{0x16}},
{Key: ControlW, ASCIICode: []byte{0x17}},
{Key: ControlX, ASCIICode: []byte{0x18}},
{Key: ControlY, ASCIICode: []byte{0x19}},
{Key: ControlZ, ASCIICode: []byte{0x1a}},
{Key: ControlBackslash, ASCIICode: []byte{0x1c}},
{Key: ControlSquareClose, ASCIICode: []byte{0x1d}},
{Key: ControlCircumflex, ASCIICode: []byte{0x1e}},
{Key: ControlUnderscore, ASCIICode: []byte{0x1f}},
{Key: Backspace, ASCIICode: []byte{0x7f}},
{Key: Up, ASCIICode: []byte{0x1b, 0x5b, 0x41}},
{Key: Down, ASCIICode: []byte{0x1b, 0x5b, 0x42}},
{Key: Right, ASCIICode: []byte{0x1b, 0x5b, 0x43}},
{Key: Left, ASCIICode: []byte{0x1b, 0x5b, 0x44}},
{Key: Home, ASCIICode: []byte{0x1b, 0x5b, 0x48}},
{Key: Home, ASCIICode: []byte{0x1b, 0x30, 0x48}},
{Key: End, ASCIICode: []byte{0x1b, 0x5b, 0x46}},
{Key: End, ASCIICode: []byte{0x1b, 0x30, 0x46}},
{Key: Enter, ASCIICode: []byte{0xa}},
{Key: Delete, ASCIICode: []byte{0x1b, 0x5b, 0x33, 0x7e}},
{Key: ShiftDelete, ASCIICode: []byte{0x1b, 0x5b, 0x33, 0x3b, 0x32, 0x7e}},
{Key: ControlDelete, ASCIICode: []byte{0x1b, 0x5b, 0x33, 0x3b, 0x35, 0x7e}},
{Key: Home, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x7e}},
{Key: End, ASCIICode: []byte{0x1b, 0x5b, 0x34, 0x7e}},
{Key: PageUp, ASCIICode: []byte{0x1b, 0x5b, 0x35, 0x7e}},
{Key: PageDown, ASCIICode: []byte{0x1b, 0x5b, 0x36, 0x7e}},
{Key: Home, ASCIICode: []byte{0x1b, 0x5b, 0x37, 0x7e}},
{Key: End, ASCIICode: []byte{0x1b, 0x5b, 0x38, 0x7e}},
{Key: Tab, ASCIICode: []byte{0x9}},
{Key: BackTab, ASCIICode: []byte{0x1b, 0x5b, 0x5a}},
{Key: Insert, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x7e}},
{Key: F1, ASCIICode: []byte{0x1b, 0x4f, 0x50}},
{Key: F2, ASCIICode: []byte{0x1b, 0x4f, 0x51}},
{Key: F3, ASCIICode: []byte{0x1b, 0x4f, 0x52}},
{Key: F4, ASCIICode: []byte{0x1b, 0x4f, 0x53}},
{Key: F1, ASCIICode: []byte{0x1b, 0x4f, 0x50, 0x41}}, // Linux console
{Key: F2, ASCIICode: []byte{0x1b, 0x5b, 0x5b, 0x42}}, // Linux console
{Key: F3, ASCIICode: []byte{0x1b, 0x5b, 0x5b, 0x43}}, // Linux console
{Key: F4, ASCIICode: []byte{0x1b, 0x5b, 0x5b, 0x44}}, // Linux console
{Key: F5, ASCIICode: []byte{0x1b, 0x5b, 0x5b, 0x45}}, // Linux console
{Key: F1, ASCIICode: []byte{0x1b, 0x5b, 0x11, 0x7e}}, // rxvt-unicode
{Key: F2, ASCIICode: []byte{0x1b, 0x5b, 0x12, 0x7e}}, // rxvt-unicode
{Key: F3, ASCIICode: []byte{0x1b, 0x5b, 0x13, 0x7e}}, // rxvt-unicode
{Key: F4, ASCIICode: []byte{0x1b, 0x5b, 0x14, 0x7e}}, // rxvt-unicode
{Key: F5, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x35, 0x7e}},
{Key: F6, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x37, 0x7e}},
{Key: F7, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x38, 0x7e}},
{Key: F8, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x39, 0x7e}},
{Key: F9, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x30, 0x7e}},
{Key: F10, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x31, 0x7e}},
{Key: F11, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x32, 0x7e}},
{Key: F12, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x34, 0x7e, 0x8}},
{Key: F13, ASCIICode: []byte{0x1b, 0x5b, 0x25, 0x7e}},
{Key: F14, ASCIICode: []byte{0x1b, 0x5b, 0x26, 0x7e}},
{Key: F15, ASCIICode: []byte{0x1b, 0x5b, 0x28, 0x7e}},
{Key: F16, ASCIICode: []byte{0x1b, 0x5b, 0x29, 0x7e}},
{Key: F17, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x7e}},
{Key: F18, ASCIICode: []byte{0x1b, 0x5b, 0x32, 0x7e}},
{Key: F19, ASCIICode: []byte{0x1b, 0x5b, 0x33, 0x7e}},
{Key: F20, ASCIICode: []byte{0x1b, 0x5b, 0x34, 0x7e}},
// Xterm
{Key: F13, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x50}},
{Key: F14, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x51}},
// &ASCIICode{Key: F15, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x52}}, // Conflicts with CPR response
{Key: F16, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x52}},
{Key: F17, ASCIICode: []byte{0x1b, 0x5b, 0x15, 0x3b, 0x32, 0x7e}},
{Key: F18, ASCIICode: []byte{0x1b, 0x5b, 0x17, 0x3b, 0x32, 0x7e}},
{Key: F19, ASCIICode: []byte{0x1b, 0x5b, 0x18, 0x3b, 0x32, 0x7e}},
{Key: F20, ASCIICode: []byte{0x1b, 0x5b, 0x19, 0x3b, 0x32, 0x7e}},
{Key: F21, ASCIICode: []byte{0x1b, 0x5b, 0x20, 0x3b, 0x32, 0x7e}},
{Key: F22, ASCIICode: []byte{0x1b, 0x5b, 0x21, 0x3b, 0x32, 0x7e}},
{Key: F23, ASCIICode: []byte{0x1b, 0x5b, 0x23, 0x3b, 0x32, 0x7e}},
{Key: F24, ASCIICode: []byte{0x1b, 0x5b, 0x24, 0x3b, 0x32, 0x7e}},
{Key: ControlUp, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x35, 0x41}},
{Key: ControlDown, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x35, 0x42}},
{Key: ControlRight, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x35, 0x43}},
{Key: ControlLeft, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x35, 0x44}},
{Key: ShiftUp, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x41}},
{Key: ShiftDown, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x42}},
{Key: ShiftRight, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x43}},
{Key: ShiftLeft, ASCIICode: []byte{0x1b, 0x5b, 0x31, 0x3b, 0x32, 0x44}},
// Tmux sends following keystrokes when control+arrow is pressed, but for
// Emacs ansi-term sends the same sequences for normal arrow keys. Consider
// it a normal arrow press, because that's more important.
{Key: Up, ASCIICode: []byte{0x1b, 0x4f, 0x41}},
{Key: Down, ASCIICode: []byte{0x1b, 0x4f, 0x42}},
{Key: Right, ASCIICode: []byte{0x1b, 0x4f, 0x43}},
{Key: Left, ASCIICode: []byte{0x1b, 0x4f, 0x44}},
{Key: ControlUp, ASCIICode: []byte{0x1b, 0x5b, 0x35, 0x41}},
{Key: ControlDown, ASCIICode: []byte{0x1b, 0x5b, 0x35, 0x42}},
{Key: ControlRight, ASCIICode: []byte{0x1b, 0x5b, 0x35, 0x43}},
{Key: ControlLeft, ASCIICode: []byte{0x1b, 0x5b, 0x35, 0x44}},
{Key: ControlRight, ASCIICode: []byte{0x1b, 0x5b, 0x4f, 0x63}}, // rxvt
{Key: ControlLeft, ASCIICode: []byte{0x1b, 0x5b, 0x4f, 0x64}}, // rxvt
{Key: Ignore, ASCIICode: []byte{0x1b, 0x5b, 0x45}}, // Xterm
{Key: Ignore, ASCIICode: []byte{0x1b, 0x5b, 0x46}}, // Linux console
}