-/* "Keycodes" that report an escape sequence.
- * We use something which fits into signed char,
- * yet doesn't represent any valid Unicode characher.
- * Also, -1 is reserved for error indication and we don't use it. */
-enum {
- KEYCODE_UP = -2,
- KEYCODE_DOWN = -3,
- KEYCODE_RIGHT = -4,
- KEYCODE_LEFT = -5,
- KEYCODE_HOME = -6,
- KEYCODE_END = -7,
- KEYCODE_INSERT = -8,
- KEYCODE_DELETE = -9,
- KEYCODE_PAGEUP = -10,
- KEYCODE_PAGEDOWN = -11,
-#if 0
- KEYCODE_FUN1 = -12,
- KEYCODE_FUN2 = -13,
- KEYCODE_FUN3 = -14,
- KEYCODE_FUN4 = -15,
- KEYCODE_FUN5 = -16,
- KEYCODE_FUN6 = -17,
- KEYCODE_FUN7 = -18,
- KEYCODE_FUN8 = -19,
- KEYCODE_FUN9 = -20,
- KEYCODE_FUN10 = -21,
- KEYCODE_FUN11 = -22,
- KEYCODE_FUN12 = -23,
-#endif
- KEYCODE_CURSOR_POS = -0x100,
- /* How long is the longest ESC sequence we know?
- * We want it big enough to be able to contain
- * cursor position sequence "ESC [ 9999 ; 9999 R"
- */
- KEYCODE_BUFFER_SIZE = 16
-};
-/* Note: fd may be in blocking or non-blocking mode, both make sense.
- * For one, less uses non-blocking mode.
- * Only the first read syscall inside read_key may block indefinitely
- * (unless fd is in non-blocking mode),
- * subsequent reads will time out after a few milliseconds.
- * Return of -1 means EOF or error (errno == 0 on EOF).
- * buffer[0] is used as a counter of buffered chars and must be 0
- * on first call.
- */
-int64_t read_key(int fd, char *buffer) FAST_FUNC;
-
-