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+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+
+/*
+ * Keycode definitions for special keys.
+ *
+ * Any special key code sequences are replaced by these codes.
+ */
+
+/*
+ * For MSDOS some keys produce codes larger than 0xff. They are split into two
+ * chars, the first one is K_NUL (same value used in term.h).
+ */
+#define K_NUL (0xce) // for MSDOS: special key follows
+
+/*
+ * K_SPECIAL is the first byte of a special key code and is always followed by
+ * two bytes.
+ * The second byte can have any value. ASCII is used for normal termcap
+ * entries, 0x80 and higher for special keys, see below.
+ * The third byte is guaranteed to be between 0x02 and 0x7f.
+ */
+
+#define K_SPECIAL (0x80)
+
+/*
+ * Positive characters are "normal" characters.
+ * Negative characters are special key codes. Only characters below -0x200
+ * are used to so that the absolute value can't be mistaken for a single-byte
+ * character.
+ */
+#define IS_SPECIAL(c) ((c) < 0)
+
+/*
+ * Characters 0x0100 - 0x01ff have a special meaning for abbreviations.
+ * Multi-byte characters also have ABBR_OFF added, thus are above 0x0200.
+ */
+#define ABBR_OFF 0x100
+
+/*
+ * NUL cannot be in the input string, therefore it is replaced by
+ * K_SPECIAL KS_ZERO KE_FILLER
+ */
+#define KS_ZERO 255
+
+/*
+ * K_SPECIAL cannot be in the input string, therefore it is replaced by
+ * K_SPECIAL KS_SPECIAL KE_FILLER
+ */
+#define KS_SPECIAL 254
+
+/*
+ * KS_EXTRA is used for keys that have no termcap name
+ * K_SPECIAL KS_EXTRA KE_xxx
+ */
+#define KS_EXTRA 253
+
+/*
+ * KS_MODIFIER is used when a modifier is given for a (special) key
+ * K_SPECIAL KS_MODIFIER bitmask
+ */
+#define KS_MODIFIER 252
+
+/*
+ * These are used for the GUI
+ * K_SPECIAL KS_xxx KE_FILLER
+ */
+#define KS_MOUSE 251
+#define KS_MENU 250
+#define KS_VER_SCROLLBAR 249
+#define KS_HOR_SCROLLBAR 248
+
+/*
+ * These are used for DEC mouse
+ */
+#define KS_NETTERM_MOUSE 247
+#define KS_DEC_MOUSE 246
+
+/*
+ * Used for switching Select mode back on after a mapping or menu.
+ */
+#define KS_SELECT 245
+#define K_SELECT_STRING (char_u *)"\200\365X"
+
+/*
+ * Used for tearing off a menu.
+ */
+#define KS_TEAROFF 244
+
+// Used for JSB term mouse.
+#define KS_JSBTERM_MOUSE 243
+
+// Used a termcap entry that produces a normal character.
+#define KS_KEY 242
+
+// Used for the qnx pterm mouse.
+#define KS_PTERM_MOUSE 241
+
+// Used for click in a tab pages label.
+#define KS_TABLINE 240
+
+// Used for menu in a tab pages line.
+#define KS_TABMENU 239
+
+// Used for the urxvt mouse.
+#define KS_URXVT_MOUSE 238
+
+// Used for the sgr mouse.
+#define KS_SGR_MOUSE 237
+#define KS_SGR_MOUSE_RELEASE 236
+
+// Used for the GPM mouse.
+#define KS_GPM_MOUSE 235
+
+/*
+ * Filler used after KS_SPECIAL and others
+ */
+#define KE_FILLER ('X')
+
+/*
+ * translation of three byte code "K_SPECIAL a b" into int "K_xxx" and back
+ */
+#define TERMCAP2KEY(a, b) (-((a) + ((int)(b) << 8)))
+#define KEY2TERMCAP0(x) ((-(x)) & 0xff)
+#define KEY2TERMCAP1(x) (((unsigned)(-(x)) >> 8) & 0xff)
+
+/*
+ * get second or third byte when translating special key code into three bytes
+ */
+#define K_SECOND(c) ((c) == K_SPECIAL ? KS_SPECIAL : (c) == NUL ? KS_ZERO : KEY2TERMCAP0(c))
+
+#define K_THIRD(c) (((c) == K_SPECIAL || (c) == NUL) ? KE_FILLER : KEY2TERMCAP1(c))
+
+/*
+ * get single int code from second byte after K_SPECIAL
+ */
+#define TO_SPECIAL(a, b) ((a) == KS_SPECIAL ? K_SPECIAL : (a) == KS_ZERO ? K_ZERO : TERMCAP2KEY(a, b))
+
+/*
+ * Codes for keys that do not have a termcap name.
+ * The numbers are fixed to make sure that recorded key sequences remain valid.
+ * Add new entries at the end, not halfway.
+ *
+ * K_SPECIAL KS_EXTRA KE_xxx
+ */
+enum key_extra
+{
+ KE_NAME = 3 // name of this terminal entry
+
+ , KE_S_UP = 4 // shift-up
+ , KE_S_DOWN = 5 // shift-down
+
+ , KE_S_F1 = 6 // shifted function keys
+ , KE_S_F2 = 7
+ , KE_S_F3 = 8
+ , KE_S_F4 = 9
+ , KE_S_F5 = 10
+ , KE_S_F6 = 11
+ , KE_S_F7 = 12
+ , KE_S_F8 = 13
+ , KE_S_F9 = 14
+ , KE_S_F10 = 15
+
+ , KE_S_F11 = 16
+ , KE_S_F12 = 17
+ , KE_S_F13 = 18
+ , KE_S_F14 = 19
+ , KE_S_F15 = 20
+ , KE_S_F16 = 21
+ , KE_S_F17 = 22
+ , KE_S_F18 = 23
+ , KE_S_F19 = 24
+ , KE_S_F20 = 25
+
+ , KE_S_F21 = 26
+ , KE_S_F22 = 27
+ , KE_S_F23 = 28
+ , KE_S_F24 = 29
+ , KE_S_F25 = 30
+ , KE_S_F26 = 31
+ , KE_S_F27 = 32
+ , KE_S_F28 = 33
+ , KE_S_F29 = 34
+ , KE_S_F30 = 35
+
+ , KE_S_F31 = 36
+ , KE_S_F32 = 37
+ , KE_S_F33 = 38
+ , KE_S_F34 = 39
+ , KE_S_F35 = 40
+ , KE_S_F36 = 41
+ , KE_S_F37 = 42
+
+ , KE_MOUSE = 43 // mouse event start
+
+/*
+ * Symbols for pseudo keys which are translated from the real key symbols
+ * above.
+ */
+ , KE_LEFTMOUSE = 44 // Left mouse button click
+ , KE_LEFTDRAG = 45 // Drag with left mouse button down
+ , KE_LEFTRELEASE = 46 // Left mouse button release
+ , KE_MIDDLEMOUSE = 47 // Middle mouse button click
+ , KE_MIDDLEDRAG = 48 // Drag with middle mouse button down
+ , KE_MIDDLERELEASE = 49 // Middle mouse button release
+ , KE_RIGHTMOUSE = 50 // Right mouse button click
+ , KE_RIGHTDRAG = 51 // Drag with right mouse button down
+ , KE_RIGHTRELEASE = 52 // Right mouse button release
+
+ , KE_IGNORE = 53 // Ignored mouse drag/release
+
+ , KE_TAB = 54 // unshifted TAB key
+ , KE_S_TAB_OLD = 55 // shifted TAB key (no longer used)
+
+ , KE_SNIFF_UNUSED = 56 // obsolete
+ , KE_XF1 = 57 // extra vt100 function keys for xterm
+ , KE_XF2 = 58
+ , KE_XF3 = 59
+ , KE_XF4 = 60
+ , KE_XEND = 61 // extra (vt100) end key for xterm
+ , KE_ZEND = 62 // extra (vt100) end key for xterm
+ , KE_XHOME = 63 // extra (vt100) home key for xterm
+ , KE_ZHOME = 64 // extra (vt100) home key for xterm
+ , KE_XUP = 65 // extra vt100 cursor keys for xterm
+ , KE_XDOWN = 66
+ , KE_XLEFT = 67
+ , KE_XRIGHT = 68
+
+ , KE_LEFTMOUSE_NM = 69 // non-mappable Left mouse button click
+ , KE_LEFTRELEASE_NM = 70 // non-mappable left mouse button release
+
+ , KE_S_XF1 = 71 // vt100 shifted function keys for xterm
+ , KE_S_XF2 = 72
+ , KE_S_XF3 = 73
+ , KE_S_XF4 = 74
+
+ // NOTE: The scroll wheel events are inverted: i.e. UP is the same as
+ // moving the actual scroll wheel down, LEFT is the same as moving the
+ // scroll wheel right.
+ , KE_MOUSEDOWN = 75 // scroll wheel pseudo-button Down
+ , KE_MOUSEUP = 76 // scroll wheel pseudo-button Up
+ , KE_MOUSELEFT = 77 // scroll wheel pseudo-button Left
+ , KE_MOUSERIGHT = 78 // scroll wheel pseudo-button Right
+
+ , KE_KINS = 79 // keypad Insert key
+ , KE_KDEL = 80 // keypad Delete key
+
+ , KE_CSI = 81 // CSI typed directly
+ , KE_SNR = 82 // <SNR>
+ , KE_PLUG = 83 // <Plug>
+ , KE_CMDWIN = 84 // open command-line window from Command-line Mode
+
+ , KE_C_LEFT = 85 // control-left
+ , KE_C_RIGHT = 86 // control-right
+ , KE_C_HOME = 87 // control-home
+ , KE_C_END = 88 // control-end
+
+ , KE_X1MOUSE = 89 // X1/X2 mouse-buttons
+ , KE_X1DRAG = 90
+ , KE_X1RELEASE = 91
+ , KE_X2MOUSE = 92
+ , KE_X2DRAG = 93
+ , KE_X2RELEASE = 94
+
+ , KE_DROP = 95 // DnD data is available
+ , KE_CURSORHOLD = 96 // CursorHold event
+ , KE_NOP = 97 // doesn't do something
+ , KE_FOCUSGAINED = 98 // focus gained
+ , KE_FOCUSLOST = 99 // focus lost
+ , KE_MOUSEMOVE = 100 // mouse moved with no button down
+ , KE_CANCEL = 101 // return from vgetc()
+ , KE_COMMAND = 102 // <Cmd> special key
+};
+
+/*
+ * the three byte codes are replaced with the following int when using vgetc()
+ */
+#define K_ZERO TERMCAP2KEY(KS_ZERO, KE_FILLER)
+
+#define K_UP TERMCAP2KEY('k', 'u')
+#define K_DOWN TERMCAP2KEY('k', 'd')
+#define K_LEFT TERMCAP2KEY('k', 'l')
+#define K_RIGHT TERMCAP2KEY('k', 'r')
+#define K_S_UP TERMCAP2KEY(KS_EXTRA, KE_S_UP)
+#define K_S_DOWN TERMCAP2KEY(KS_EXTRA, KE_S_DOWN)
+#define K_S_LEFT TERMCAP2KEY('#', '4')
+#define K_C_LEFT TERMCAP2KEY(KS_EXTRA, KE_C_LEFT)
+#define K_S_RIGHT TERMCAP2KEY('%', 'i')
+#define K_C_RIGHT TERMCAP2KEY(KS_EXTRA, KE_C_RIGHT)
+#define K_S_HOME TERMCAP2KEY('#', '2')
+#define K_C_HOME TERMCAP2KEY(KS_EXTRA, KE_C_HOME)
+#define K_S_END TERMCAP2KEY('*', '7')
+#define K_C_END TERMCAP2KEY(KS_EXTRA, KE_C_END)
+#define K_TAB TERMCAP2KEY(KS_EXTRA, KE_TAB)
+#define K_S_TAB TERMCAP2KEY('k', 'B')
+
+// extra set of function keys F1-F4, for vt100 compatible xterm
+#define K_XF1 TERMCAP2KEY(KS_EXTRA, KE_XF1)
+#define K_XF2 TERMCAP2KEY(KS_EXTRA, KE_XF2)
+#define K_XF3 TERMCAP2KEY(KS_EXTRA, KE_XF3)
+#define K_XF4 TERMCAP2KEY(KS_EXTRA, KE_XF4)
+
+// extra set of cursor keys for vt100 compatible xterm
+#define K_XUP TERMCAP2KEY(KS_EXTRA, KE_XUP)
+#define K_XDOWN TERMCAP2KEY(KS_EXTRA, KE_XDOWN)
+#define K_XLEFT TERMCAP2KEY(KS_EXTRA, KE_XLEFT)
+#define K_XRIGHT TERMCAP2KEY(KS_EXTRA, KE_XRIGHT)
+
+#define K_F1 TERMCAP2KEY('k', '1') // function keys
+#define K_F2 TERMCAP2KEY('k', '2')
+#define K_F3 TERMCAP2KEY('k', '3')
+#define K_F4 TERMCAP2KEY('k', '4')
+#define K_F5 TERMCAP2KEY('k', '5')
+#define K_F6 TERMCAP2KEY('k', '6')
+#define K_F7 TERMCAP2KEY('k', '7')
+#define K_F8 TERMCAP2KEY('k', '8')
+#define K_F9 TERMCAP2KEY('k', '9')
+#define K_F10 TERMCAP2KEY('k', ';')
+
+#define K_F11 TERMCAP2KEY('F', '1')
+#define K_F12 TERMCAP2KEY('F', '2')
+#define K_F13 TERMCAP2KEY('F', '3')
+#define K_F14 TERMCAP2KEY('F', '4')
+#define K_F15 TERMCAP2KEY('F', '5')
+#define K_F16 TERMCAP2KEY('F', '6')
+#define K_F17 TERMCAP2KEY('F', '7')
+#define K_F18 TERMCAP2KEY('F', '8')
+#define K_F19 TERMCAP2KEY('F', '9')
+#define K_F20 TERMCAP2KEY('F', 'A')
+
+#define K_F21 TERMCAP2KEY('F', 'B')
+#define K_F22 TERMCAP2KEY('F', 'C')
+#define K_F23 TERMCAP2KEY('F', 'D')
+#define K_F24 TERMCAP2KEY('F', 'E')
+#define K_F25 TERMCAP2KEY('F', 'F')
+#define K_F26 TERMCAP2KEY('F', 'G')
+#define K_F27 TERMCAP2KEY('F', 'H')
+#define K_F28 TERMCAP2KEY('F', 'I')
+#define K_F29 TERMCAP2KEY('F', 'J')
+#define K_F30 TERMCAP2KEY('F', 'K')
+
+#define K_F31 TERMCAP2KEY('F', 'L')
+#define K_F32 TERMCAP2KEY('F', 'M')
+#define K_F33 TERMCAP2KEY('F', 'N')
+#define K_F34 TERMCAP2KEY('F', 'O')
+#define K_F35 TERMCAP2KEY('F', 'P')
+#define K_F36 TERMCAP2KEY('F', 'Q')
+#define K_F37 TERMCAP2KEY('F', 'R')
+
+// extra set of shifted function keys F1-F4, for vt100 compatible xterm
+#define K_S_XF1 TERMCAP2KEY(KS_EXTRA, KE_S_XF1)
+#define K_S_XF2 TERMCAP2KEY(KS_EXTRA, KE_S_XF2)
+#define K_S_XF3 TERMCAP2KEY(KS_EXTRA, KE_S_XF3)
+#define K_S_XF4 TERMCAP2KEY(KS_EXTRA, KE_S_XF4)
+
+#define K_S_F1 TERMCAP2KEY(KS_EXTRA, KE_S_F1) // shifted func. keys
+#define K_S_F2 TERMCAP2KEY(KS_EXTRA, KE_S_F2)
+#define K_S_F3 TERMCAP2KEY(KS_EXTRA, KE_S_F3)
+#define K_S_F4 TERMCAP2KEY(KS_EXTRA, KE_S_F4)
+#define K_S_F5 TERMCAP2KEY(KS_EXTRA, KE_S_F5)
+#define K_S_F6 TERMCAP2KEY(KS_EXTRA, KE_S_F6)
+#define K_S_F7 TERMCAP2KEY(KS_EXTRA, KE_S_F7)
+#define K_S_F8 TERMCAP2KEY(KS_EXTRA, KE_S_F8)
+#define K_S_F9 TERMCAP2KEY(KS_EXTRA, KE_S_F9)
+#define K_S_F10 TERMCAP2KEY(KS_EXTRA, KE_S_F10)
+
+#define K_S_F11 TERMCAP2KEY(KS_EXTRA, KE_S_F11)
+#define K_S_F12 TERMCAP2KEY(KS_EXTRA, KE_S_F12)
+// K_S_F13 to K_S_F37 are currently not used
+
+#define K_HELP TERMCAP2KEY('%', '1')
+#define K_UNDO TERMCAP2KEY('&', '8')
+
+#define K_BS TERMCAP2KEY('k', 'b')
+
+#define K_INS TERMCAP2KEY('k', 'I')
+#define K_KINS TERMCAP2KEY(KS_EXTRA, KE_KINS)
+#define K_DEL TERMCAP2KEY('k', 'D')
+#define K_KDEL TERMCAP2KEY(KS_EXTRA, KE_KDEL)
+#define K_HOME TERMCAP2KEY('k', 'h')
+#define K_KHOME TERMCAP2KEY('K', '1') // keypad home (upper left)
+#define K_XHOME TERMCAP2KEY(KS_EXTRA, KE_XHOME)
+#define K_ZHOME TERMCAP2KEY(KS_EXTRA, KE_ZHOME)
+#define K_END TERMCAP2KEY('@', '7')
+#define K_KEND TERMCAP2KEY('K', '4') // keypad end (lower left)
+#define K_XEND TERMCAP2KEY(KS_EXTRA, KE_XEND)
+#define K_ZEND TERMCAP2KEY(KS_EXTRA, KE_ZEND)
+#define K_PAGEUP TERMCAP2KEY('k', 'P')
+#define K_PAGEDOWN TERMCAP2KEY('k', 'N')
+#define K_KPAGEUP TERMCAP2KEY('K', '3') // keypad pageup (upper R.)
+#define K_KPAGEDOWN TERMCAP2KEY('K', '5') // keypad pagedown (lower R.)
+
+#define K_KPLUS TERMCAP2KEY('K', '6') // keypad plus
+#define K_KMINUS TERMCAP2KEY('K', '7') // keypad minus
+#define K_KDIVIDE TERMCAP2KEY('K', '8') // keypad /
+#define K_KMULTIPLY TERMCAP2KEY('K', '9') // keypad *
+#define K_KENTER TERMCAP2KEY('K', 'A') // keypad Enter
+#define K_KPOINT TERMCAP2KEY('K', 'B') // keypad . or ,
+#define K_PS TERMCAP2KEY('P', 'S') // paste start
+#define K_PE TERMCAP2KEY('P', 'E') // paste end
+
+#define K_K0 TERMCAP2KEY('K', 'C') // keypad 0
+#define K_K1 TERMCAP2KEY('K', 'D') // keypad 1
+#define K_K2 TERMCAP2KEY('K', 'E') // keypad 2
+#define K_K3 TERMCAP2KEY('K', 'F') // keypad 3
+#define K_K4 TERMCAP2KEY('K', 'G') // keypad 4
+#define K_K5 TERMCAP2KEY('K', 'H') // keypad 5
+#define K_K6 TERMCAP2KEY('K', 'I') // keypad 6
+#define K_K7 TERMCAP2KEY('K', 'J') // keypad 7
+#define K_K8 TERMCAP2KEY('K', 'K') // keypad 8
+#define K_K9 TERMCAP2KEY('K', 'L') // keypad 9
+
+#define K_MOUSE TERMCAP2KEY(KS_MOUSE, KE_FILLER)
+#define K_MENU TERMCAP2KEY(KS_MENU, KE_FILLER)
+#define K_VER_SCROLLBAR TERMCAP2KEY(KS_VER_SCROLLBAR, KE_FILLER)
+#define K_HOR_SCROLLBAR TERMCAP2KEY(KS_HOR_SCROLLBAR, KE_FILLER)
+
+#define K_NETTERM_MOUSE TERMCAP2KEY(KS_NETTERM_MOUSE, KE_FILLER)
+#define K_DEC_MOUSE TERMCAP2KEY(KS_DEC_MOUSE, KE_FILLER)
+#define K_JSBTERM_MOUSE TERMCAP2KEY(KS_JSBTERM_MOUSE, KE_FILLER)
+#define K_PTERM_MOUSE TERMCAP2KEY(KS_PTERM_MOUSE, KE_FILLER)
+#define K_URXVT_MOUSE TERMCAP2KEY(KS_URXVT_MOUSE, KE_FILLER)
+#define K_SGR_MOUSE TERMCAP2KEY(KS_SGR_MOUSE, KE_FILLER)
+#define K_SGR_MOUSERELEASE TERMCAP2KEY(KS_SGR_MOUSE_RELEASE, KE_FILLER)
+
+#define K_SELECT TERMCAP2KEY(KS_SELECT, KE_FILLER)
+#define K_TEAROFF TERMCAP2KEY(KS_TEAROFF, KE_FILLER)
+
+#define K_TABLINE TERMCAP2KEY(KS_TABLINE, KE_FILLER)
+#define K_TABMENU TERMCAP2KEY(KS_TABMENU, KE_FILLER)
+
+/*
+ * Symbols for pseudo keys which are translated from the real key symbols
+ * above.
+ */
+#define K_LEFTMOUSE TERMCAP2KEY(KS_EXTRA, KE_LEFTMOUSE)
+#define K_LEFTMOUSE_NM TERMCAP2KEY(KS_EXTRA, KE_LEFTMOUSE_NM)
+#define K_LEFTDRAG TERMCAP2KEY(KS_EXTRA, KE_LEFTDRAG)
+#define K_LEFTRELEASE TERMCAP2KEY(KS_EXTRA, KE_LEFTRELEASE)
+#define K_LEFTRELEASE_NM TERMCAP2KEY(KS_EXTRA, KE_LEFTRELEASE_NM)
+#define K_MOUSEMOVE TERMCAP2KEY(KS_EXTRA, KE_MOUSEMOVE)
+#define K_MIDDLEMOUSE TERMCAP2KEY(KS_EXTRA, KE_MIDDLEMOUSE)
+#define K_MIDDLEDRAG TERMCAP2KEY(KS_EXTRA, KE_MIDDLEDRAG)
+#define K_MIDDLERELEASE TERMCAP2KEY(KS_EXTRA, KE_MIDDLERELEASE)
+#define K_RIGHTMOUSE TERMCAP2KEY(KS_EXTRA, KE_RIGHTMOUSE)
+#define K_RIGHTDRAG TERMCAP2KEY(KS_EXTRA, KE_RIGHTDRAG)
+#define K_RIGHTRELEASE TERMCAP2KEY(KS_EXTRA, KE_RIGHTRELEASE)
+#define K_X1MOUSE TERMCAP2KEY(KS_EXTRA, KE_X1MOUSE)
+#define K_X1MOUSE TERMCAP2KEY(KS_EXTRA, KE_X1MOUSE)
+#define K_X1DRAG TERMCAP2KEY(KS_EXTRA, KE_X1DRAG)
+#define K_X1RELEASE TERMCAP2KEY(KS_EXTRA, KE_X1RELEASE)
+#define K_X2MOUSE TERMCAP2KEY(KS_EXTRA, KE_X2MOUSE)
+#define K_X2DRAG TERMCAP2KEY(KS_EXTRA, KE_X2DRAG)
+#define K_X2RELEASE TERMCAP2KEY(KS_EXTRA, KE_X2RELEASE)
+
+#define K_IGNORE TERMCAP2KEY(KS_EXTRA, KE_IGNORE)
+#define K_NOP TERMCAP2KEY(KS_EXTRA, KE_NOP)
+#define K_CANCEL TERMCAP2KEY(KS_EXTRA, KE_CANCEL)
+
+#define K_MOUSEDOWN TERMCAP2KEY(KS_EXTRA, KE_MOUSEDOWN)
+#define K_MOUSEUP TERMCAP2KEY(KS_EXTRA, KE_MOUSEUP)
+#define K_MOUSELEFT TERMCAP2KEY(KS_EXTRA, KE_MOUSELEFT)
+#define K_MOUSERIGHT TERMCAP2KEY(KS_EXTRA, KE_MOUSERIGHT)
+
+#define K_CSI TERMCAP2KEY(KS_EXTRA, KE_CSI)
+#define K_SNR TERMCAP2KEY(KS_EXTRA, KE_SNR)
+#define K_PLUG TERMCAP2KEY(KS_EXTRA, KE_PLUG)
+#define K_CMDWIN TERMCAP2KEY(KS_EXTRA, KE_CMDWIN)
+
+#define K_DROP TERMCAP2KEY(KS_EXTRA, KE_DROP)
+#define K_FOCUSGAINED TERMCAP2KEY(KS_EXTRA, KE_FOCUSGAINED)
+#define K_FOCUSLOST TERMCAP2KEY(KS_EXTRA, KE_FOCUSLOST)
+
+#define K_CURSORHOLD TERMCAP2KEY(KS_EXTRA, KE_CURSORHOLD)
+
+#define K_COMMAND TERMCAP2KEY(KS_EXTRA, KE_COMMAND)
+
+// Bits for modifier mask
+// 0x01 cannot be used, because the modifier must be 0x02 or higher
+#define MOD_MASK_SHIFT 0x02
+#define MOD_MASK_CTRL 0x04
+#define MOD_MASK_ALT 0x08 // aka META
+#define MOD_MASK_META 0x10 // META when it's different from ALT
+#define MOD_MASK_2CLICK 0x20 // use MOD_MASK_MULTI_CLICK
+#define MOD_MASK_3CLICK 0x40 // use MOD_MASK_MULTI_CLICK
+#define MOD_MASK_4CLICK 0x60 // use MOD_MASK_MULTI_CLICK
+#ifdef MACOS_X
+# define MOD_MASK_CMD 0x80
+#endif
+
+#define MOD_MASK_MULTI_CLICK (MOD_MASK_2CLICK|MOD_MASK_3CLICK|MOD_MASK_4CLICK)
+
+/*
+ * The length of the longest special key name, including modifiers.
+ * Current longest is <M-C-S-T-D-A-4-ScrollWheelRight> (length includes '<' and
+ * '>').
+ */
+#define MAX_KEY_NAME_LEN 32
+
+/*
+ * Maximum length of a special key event as tokens. This includes modifiers.
+ * The longest event is something like <M-C-S-T-4-LeftDrag> which would be the
+ * following string of tokens:
+ *
+ * <K_SPECIAL> <KS_MODIFIER> bitmask <K_SPECIAL> <KS_EXTRA> <KT_LEFTDRAG>.
+ *
+ * This is a total of 6 tokens, and is currently the longest one possible.
+ */
+#define MAX_KEY_CODE_LEN 6