15 #define MODE_CURSOR 0x01
16 #define MODE_WRAP 0x02
17 #define MODE_ORIGIN 0x04
18 #define MODE_AUTOCR 0x08
19 #define MODE_DEFAULT (MODE_CURSOR | MODE_WRAP)
20 #define ATTR_BOLD 0x10
21 #define ATTR_ITALIC 0x20
23 #define ATTR_ALL (ATTR_BOLD | ATTR_ITALIC | ATTR_REV)
24 #define MODE_INSERT 0x100
25 #define MODE_WRAPREADY 0x200
27 #define LIMIT(n, a, b) ((n) < (a) ? (a) : ((n) > (b) ? (b) : (n)))
28 #define BIT_SET(i, b, val) ((val) ? ((i) | (b)) : ((i) & ~(b)))
29 #define OFFSET(r, c) ((r) * pad_cols() + (c))
31 static struct term
*term
;
33 static short *fgs
, *bgs
;
40 /* low level drawing and lazy updating */
42 static int dirty
[NROWS
];
45 static int fgcolor(void)
47 int c
= mode
& ATTR_REV
? bg
: fg
;
50 if (mode
& ATTR_ITALIC
)
55 static int bgcolor(void)
57 return mode
& ATTR_REV
? fg
: bg
;
60 /* assumes visible && !lazy */
61 static void _draw_pos(int r
, int c
, int cursor
)
63 int rev
= cursor
&& mode
& MODE_CURSOR
;
65 int fg
= rev
? bgs
[i
] : fgs
[i
];
66 int bg
= rev
? fgs
[i
] : bgs
[i
];
67 pad_put(screen
[i
], r
, c
, fg
, bg
);
70 /* assumes visible && !lazy */
71 static void _draw_row(int r
)
74 pad_blankrow(r
, bgcolor());
75 for (i
= 0; i
< pad_cols(); i
++) {
76 int c
= screen
[OFFSET(r
, i
)];
77 if ((c
&& c
!= ' ') || bgs
[OFFSET(r
, i
)] != bgcolor())
82 static int candraw(int sr
, int er
)
88 for (i
= sr
; i
< er
; i
++)
93 static void draw_rows(int sr
, int er
)
97 for (i
= sr
; i
< er
; i
++)
101 static void draw_cols(int r
, int sc
, int ec
)
104 if (candraw(r
, r
+ 1))
105 for (i
= sc
; i
< ec
; i
++)
109 static void draw_char(int ch
, int r
, int c
)
111 int i
= OFFSET(r
, c
);
115 if (candraw(r
, r
+ 1))
119 static void draw_cursor(int put
)
121 if (candraw(row
, row
+ 1))
122 _draw_pos(row
, col
, put
);
125 static void lazy_start(void)
127 memset(dirty
, 0, sizeof(dirty
));
131 static void lazy_flush(void)
134 if (!visible
|| !lazy
)
136 _draw_pos(row
, col
, 0);
137 for (i
= 0; i
< pad_rows(); i
++)
140 _draw_pos(row
, col
, 1);
144 static void screen_reset(int i
, int n
)
147 memset(screen
+ i
, 0, n
* sizeof(*screen
));
148 for (c
= 0; c
< n
; c
++)
150 for (c
= 0; c
< n
; c
++)
154 static void screen_move(int dst
, int src
, int n
)
156 memmove(screen
+ dst
, screen
+ src
, n
* sizeof(*screen
));
157 memmove(fgs
+ dst
, fgs
+ src
, n
* sizeof(*fgs
));
158 memmove(bgs
+ dst
, bgs
+ src
, n
* sizeof(*bgs
));
161 /* terminal input buffering */
163 #define PTYLEN (1 << 16)
165 static char ptybuf
[PTYLEN
]; /* always emptied in term_read() */
166 static int ptylen
; /* buffer length */
167 static int ptycur
; /* current offset */
169 static int waitpty(int us
)
171 struct pollfd ufds
[1];
172 ufds
[0].fd
= term
->fd
;
173 ufds
[0].events
= POLLIN
;
174 return poll(ufds
, 1, us
) <= 0;
177 static int readpty(void)
181 return (unsigned char) ptybuf
[ptycur
++];
185 while ((nr
= read(term
->fd
, ptybuf
+ ptylen
, PTYLEN
- ptylen
)) > 0)
187 if (!ptylen
&& errno
== EAGAIN
&& !waitpty(100))
188 ptylen
= read(term
->fd
, ptybuf
, PTYLEN
);
190 return ptylen
> 0 ? (unsigned char) ptybuf
[0] : -1;
193 /* term interface functions */
195 void term_send(int c
)
199 write(term
->fd
, &b
, 1);
202 static void term_sendstr(char *s
)
205 write(term
->fd
, s
, strlen(s
));
208 static void term_blank(void)
210 screen_reset(0, pad_rows() * pad_cols());
212 pad_blank(bgcolor());
215 static void ctlseq(void);
219 while (ptycur
< ptylen
) {
220 if (visible
&& !lazy
&& ptylen
- ptycur
> 15)
227 static void term_reset(void)
238 static int _openpty(int *master
, int *slave
)
243 if ((*master
= open("/dev/ptmx", O_RDWR
)) == -1)
245 if (ioctl(*master
, TIOCSPTLCK
, &unlock
) == -1)
247 if (ioctl(*master
, TIOCGPTN
, &ptyno
) == -1)
249 sprintf(name
, "/dev/pts/%d", ptyno
);
250 *slave
= open(name
, O_RDWR
| O_NOCTTY
);
254 static void _login(int fd
)
257 winp
.ws_col
= pad_cols();
258 winp
.ws_row
= pad_rows();
262 ioctl(fd
, TIOCSCTTY
, NULL
);
263 ioctl(fd
, TIOCSWINSZ
, &winp
);
271 #define MAXENV (1 << 8)
273 static void envcpy(char **d
, char **s
)
280 static void execvep(char *cmd
, char **argv
, char **envp
)
283 char *p
= getenv("PATH");
284 execve(cmd
, argv
, envp
);
287 while (*p
&& *p
!= ':')
291 execve(path
, argv
, envp
);
297 extern char **environ
;
298 void term_exec(char **args
)
301 memset(term
, 0, sizeof(*term
));
302 if (_openpty(&master
, &slave
) == -1)
304 if ((term
->pid
= fork()) == -1)
307 char *envp
[MAXENV
] = {"TERM=linux"};
308 envcpy(envp
+ 1, environ
);
311 execvep(args
[0], args
, envp
);
316 fcntl(term
->fd
, F_SETFD
, fcntl(term
->fd
, F_GETFD
) | FD_CLOEXEC
);
317 fcntl(term
->fd
, F_SETFL
, fcntl(term
->fd
, F_GETFL
) | O_NONBLOCK
);
319 memset(term
->hist
, 0, sizeof(term
->hist
));
322 static void misc_save(struct term_state
*state
)
331 static void misc_load(struct term_state
*state
)
340 void term_save(struct term
*term
)
343 misc_save(&term
->cur
);
348 void term_redraw(void)
352 memset(dirty
, 1, sizeof(dirty
));
359 void term_load(struct term
*t
, int flags
)
362 misc_load(&term
->cur
);
363 screen
= term
->screen
;
375 memset(term
, 0, sizeof(*term
));
376 term_load(term
, visible
);
381 static int writeutf8(char *dst
, int c
)
386 *d
++ = 0xf0 | (c
>> 18);
388 } else if (c
> 0x7ff) {
389 *d
++ = 0xe0 | (c
>> 12);
391 } else if (c
> 0x7f) {
392 *d
++ = 0xc0 | (c
>> 6);
395 *d
++ = c
> 0 ? c
: ' ';
399 *d
++ = 0x80 | ((c
>> (l
* 6)) & 0x3f);
403 void term_screenshot(void)
406 int fd
= open(SCRSHOT
, O_CREAT
| O_TRUNC
| O_WRONLY
, 0600);
408 for (i
= 0; i
< pad_rows(); i
++) {
410 for (j
= 0; j
< pad_cols(); j
++)
411 if (~screen
[OFFSET(i
, j
)] & DWCHAR
)
412 s
+= writeutf8(s
, screen
[OFFSET(i
, j
)]);
414 write(fd
, buf
, s
- buf
);
419 /* high-level drawing functions */
421 static void empty_rows(int sr
, int er
)
423 screen_reset(OFFSET(sr
, 0), (er
- sr
) * pad_cols());
426 static void blank_rows(int sr
, int er
)
433 #define HISTROW(pos) (term->hist + ((term->histtail + NHIST - (pos)) % NHIST) * pad_cols())
435 static void scrl_rows(int nr
)
438 for (i
= 0; i
< nr
; i
++) {
439 memcpy(HISTROW(0), screen
+ i
* pad_cols(),
440 pad_cols() * sizeof(screen
[0]));
441 term
->histtail
= (term
->histtail
+ 1) % NHIST
;
445 void term_hist(int scrl
)
453 memset(dirty
, 1, sizeof(dirty
));
454 for (i
= 0; i
< pad_rows(); i
++) {
455 int off
= (i
- scrl
) * pad_cols();
456 int *_scr
= i
< scrl
? HISTROW(scrl
- i
) : term
->screen
+ off
;
457 short *_fgs
= i
< scrl
? NULL
: term
->fgs
+ off
;
458 short *_bgs
= i
< scrl
? NULL
: term
->bgs
+ off
;
459 for (j
= 0; j
< pad_cols(); j
++)
460 pad_put(_scr
[j
], i
, j
, _fgs
? _fgs
[j
] : BGCOLOR
,
461 _bgs
? _bgs
[j
] : FGCOLOR
);
465 static void scroll_screen(int sr
, int nr
, int n
)
470 screen_move(OFFSET(sr
+ n
, 0), OFFSET(sr
, 0), nr
* pad_cols());
472 empty_rows(sr
, sr
+ n
);
474 empty_rows(sr
+ nr
+ n
, sr
+ nr
);
475 draw_rows(MIN(sr
, sr
+ n
), MAX(sr
+ nr
, sr
+ nr
+ n
));
479 static void insert_lines(int n
)
481 int sr
= MAX(top
, row
);
482 int nr
= bot
- row
- n
;
484 scroll_screen(sr
, nr
, n
);
487 static void delete_lines(int n
)
489 int r
= MAX(top
, row
);
491 int nr
= bot
- r
- n
;
493 scroll_screen(sr
, nr
, -n
);
496 static int origin(void)
498 return mode
& MODE_ORIGIN
;
501 static void move_cursor(int r
, int c
)
505 t
= origin() ? top
: 0;
506 b
= origin() ? bot
: pad_rows();
507 row
= LIMIT(r
, t
, b
- 1);
508 col
= LIMIT(c
, 0, pad_cols() - 1);
510 mode
= BIT_SET(mode
, MODE_WRAPREADY
, 0);
513 static void set_region(int t
, int b
)
515 top
= LIMIT(t
- 1, 0, pad_rows() - 1);
516 bot
= LIMIT(b
? b
: pad_rows(), top
+ 1, pad_rows());
521 static void setattr(int m
)
542 mode
&= ~ATTR_ITALIC
;
549 fg
= m
> 37 ? FGCOLOR
: m
- 30;
551 bg
= m
> 47 ? BGCOLOR
: m
- 40;
559 static void kill_chars(int sc
, int ec
)
562 for (i
= sc
; i
< ec
; i
++)
563 draw_char(0, row
, i
);
567 static void move_chars(int sc
, int nc
, int n
)
570 screen_move(OFFSET(row
, sc
+ n
), OFFSET(row
, sc
), nc
);
572 screen_reset(OFFSET(row
, sc
), n
);
574 screen_reset(OFFSET(row
, pad_cols() + n
), -n
);
575 draw_cols(row
, MIN(sc
, sc
+ n
), pad_cols());
579 static void delete_chars(int n
)
582 int nc
= pad_cols() - sc
;
583 move_chars(sc
, nc
, -n
);
586 static void insert_chars(int n
)
588 int nc
= pad_cols() - col
- n
;
589 move_chars(col
, nc
, n
);
592 static void advance(int dr
, int dc
, int scrl
)
596 if (dr
&& r
>= bot
&& scrl
) {
598 int nr
= (bot
- top
) + n
;
599 scroll_screen(top
+ -n
, nr
, n
);
601 if (dr
&& r
< top
&& scrl
) {
603 int nr
= (bot
- top
) - n
;
604 scroll_screen(top
, nr
, n
);
606 r
= dr
? LIMIT(r
, top
, bot
- 1) : r
;
607 c
= LIMIT(c
, 0, pad_cols() - 1);
611 static void insertchar(int c
)
613 if (mode
& MODE_WRAPREADY
)
615 if (mode
& MODE_INSERT
)
617 draw_char(c
, row
, col
);
618 if (col
== pad_cols() - 1)
619 mode
= BIT_SET(mode
, MODE_WRAPREADY
, 1);
625 /* partial vt102 implementation */
627 static void escseq(void);
628 static void escseq_cs(void);
629 static void escseq_g0(void);
630 static void escseq_g1(void);
631 static void escseq_g2(void);
632 static void escseq_g3(void);
633 static void csiseq(void);
634 static void csiseq_da(int c
);
635 static void csiseq_dsr(int c
);
636 static void modeseq(int c
, int set
);
638 /* comments taken from: http://www.ivarch.com/programs/termvt102.shtml */
640 static int readutf8(int c
)
646 while (l
< 6 && c
& (0x40 >> l
))
648 result
= (0x3f >> l
) & c
;
650 result
= (result
<< 6) | (readpty() & 0x3f);
654 #define unknown(ctl, c)
656 /* control sequences */
657 static void ctlseq(void)
661 case 0x09: /* HT horizontal tab to next tab stop */
662 advance(0, 8 - col
% 8, 0);
664 case 0x0a: /* LF line feed */
665 case 0x0b: /* VT line feed */
666 case 0x0c: /* FF line feed */
667 advance(1, (mode
& MODE_AUTOCR
) ? -col
: 0, 1);
669 case 0x08: /* BS backspace one column */
672 case 0x1b: /* ESC start escape sequence */
675 case 0x0d: /* CR carriage return */
678 case 0x00: /* NUL ignored */
679 case 0x07: /* BEL beep */
680 case 0x7f: /* DEL ignored */
682 case 0x05: /* ENQ trigger answerback message */
683 case 0x0e: /* SO activate G1 character set & newline */
684 case 0x0f: /* SI activate G0 character set */
685 case 0x11: /* XON resume transmission */
686 case 0x13: /* XOFF stop transmission, ignore characters */
687 case 0x18: /* CAN interrupt escape sequence */
688 case 0x1a: /* SUB interrupt escape sequence */
689 case 0x9b: /* CSI equivalent to ESC [ */
690 unknown("ctlseq", c
);
694 if (isdw(c
) && col
+ 1 == pad_cols() && ~mode
& MODE_WRAPREADY
)
699 insertchar(c
| DWCHAR
);
704 #define ESCM(c) (((c) & 0xf0) == 0x20)
705 #define ESCF(c) ((c) > 0x30 && (c) < 0x7f)
707 /* escape sequences */
708 static void escseq(void)
714 case '[': /* CSI control sequence introducer */
717 case '%': /* CS... escseq_cs table */
720 case '(': /* G0... escseq_g0 table */
723 case ')': /* G1... escseq_g1 table */
726 case '*': /* G2... escseq_g2 table */
729 case '+': /* G3... escseq_g3 table */
732 case '7': /* DECSC save state (position, charset, attributes) */
733 misc_save(&term
->sav
);
735 case '8': /* DECRC restore most recently saved state */
736 misc_load(&term
->sav
);
738 case 'M': /* RI reverse line feed */
741 case 'D': /* IND line feed */
744 case 'E': /* NEL newline */
747 case 'c': /* RIS reset */
750 case 'H': /* HTS set tab stop at current column */
751 case 'Z': /* DECID DEC private ID; return ESC [ ? 6 c (VT102) */
752 case '#': /* DECALN ("#8") DEC alignment test - fill screen with E's */
753 case '>': /* DECPNM set numeric keypad mode */
754 case '=': /* DECPAM set application keypad mode */
755 case 'N': /* SS2 select G2 charset for next char only */
756 case 'O': /* SS3 select G3 charset for next char only */
757 case 'P': /* DCS device control string (ended by ST) */
758 case 'X': /* SOS start of string */
759 case '^': /* PM privacy message (ended by ST) */
760 case '_': /* APC application program command (ended by ST) */
761 case '\\': /* ST string terminator */
762 case 'n': /* LS2 invoke G2 charset */
763 case 'o': /* LS3 invoke G3 charset */
764 case '|': /* LS3R invoke G3 charset as GR */
765 case '}': /* LS2R invoke G2 charset as GR */
766 case '~': /* LS1R invoke G1 charset as GR */
767 case ']': /* OSC operating system command */
768 case 'g': /* BEL alternate BEL */
770 unknown("escseq", c
);
775 static void escseq_cs(void)
779 case '@': /* CSDFL select default charset (ISO646/8859-1) */
780 case 'G': /* CSUTF8 select UTF-8 */
781 case '8': /* CSUTF8 select UTF-8 (obsolete) */
783 unknown("escseq_cs", c
);
788 static void escseq_g0(void)
792 case '8': /* G0DFL G0 charset = default mapping (ISO8859-1) */
793 case '0': /* G0GFX G0 charset = VT100 graphics mapping */
794 case 'U': /* G0ROM G0 charset = null mapping (straight to ROM) */
795 case 'K': /* G0USR G0 charset = user defined mapping */
796 case 'B': /* G0TXT G0 charset = ASCII mapping */
798 unknown("escseq_g0", c
);
803 static void escseq_g1(void)
807 case '8': /* G1DFL G1 charset = default mapping (ISO8859-1) */
808 case '0': /* G1GFX G1 charset = VT100 graphics mapping */
809 case 'U': /* G1ROM G1 charset = null mapping (straight to ROM) */
810 case 'K': /* G1USR G1 charset = user defined mapping */
811 case 'B': /* G1TXT G1 charset = ASCII mapping */
813 unknown("escseq_g1", c
);
818 static void escseq_g2(void)
822 case '8': /* G2DFL G2 charset = default mapping (ISO8859-1) */
823 case '0': /* G2GFX G2 charset = VT100 graphics mapping */
824 case 'U': /* G2ROM G2 charset = null mapping (straight to ROM) */
825 case 'K': /* G2USR G2 charset = user defined mapping */
827 unknown("escseq_g2", c
);
832 static void escseq_g3(void)
836 case '8': /* G3DFL G3 charset = default mapping (ISO8859-1) */
837 case '0': /* G3GFX G3 charset = VT100 graphics mapping */
838 case 'U': /* G3ROM G3 charset = null mapping (straight to ROM) */
839 case 'K': /* G3USR G3 charset = user defined mapping */
841 unknown("escseq_g3", c
);
846 static int absrow(int r
)
848 return origin() ? top
+ r
: r
;
851 #define CSIP(c) (((c) & 0xf0) == 0x30)
852 #define CSII(c) (((c) & 0xf0) == 0x20)
853 #define CSIF(c) ((c) >= 0x40 && (c) < 0x80)
855 #define MAXCSIARGS 32
856 /* ECMA-48 CSI sequences */
857 static void csiseq(void)
859 int args
[MAXCSIARGS
] = {0};
865 if (strchr("<=>?", c
)) {
872 arg
= arg
* 10 + (c
- '0');
883 case 'H': /* CUP move cursor to row, column */
884 case 'f': /* HVP move cursor to row, column */
885 move_cursor(absrow(MAX(0, args
[0] - 1)), MAX(0, args
[1] - 1));
887 case 'J': /* ED erase display */
890 kill_chars(col
, pad_cols());
891 blank_rows(row
+ 1, pad_rows());
894 kill_chars(0, col
+ 1);
895 blank_rows(0, row
- 1);
902 case 'A': /* CUU move cursor up */
903 advance(-MAX(1, args
[0]), 0, 0);
905 case 'e': /* VPR move cursor down */
906 case 'B': /* CUD move cursor down */
907 advance(MAX(1, args
[0]), 0, 0);
909 case 'a': /* HPR move cursor right */
910 case 'C': /* CUF move cursor right */
911 advance(0, MAX(1, args
[0]), 0);
913 case 'D': /* CUB move cursor left */
914 advance(0, -MAX(1, args
[0]), 0);
916 case 'K': /* EL erase line */
919 kill_chars(col
, pad_cols());
922 kill_chars(0, col
+ 1);
925 kill_chars(0, pad_cols());
929 case 'L': /* IL insert blank lines */
930 if (row
>= top
&& row
< bot
)
931 insert_lines(MAX(1, args
[0]));
933 case 'M': /* DL delete lines */
934 if (row
>= top
&& row
< bot
)
935 delete_lines(MAX(1, args
[0]));
937 case 'd': /* VPA move to row (current column) */
938 move_cursor(absrow(MAX(1, args
[0]) - 1), col
);
940 case 'm': /* SGR set graphic rendition */
943 for (i
= 0; i
< n
; i
++) {
957 case 'r': /* DECSTBM set scrolling region to (top, bottom) rows */
958 set_region(args
[0], args
[1]);
960 case 'c': /* DA return ESC [ ? 6 c (VT102) */
961 csiseq_da(priv
== '?' ? args
[0] | 0x80 : args
[0]);
963 case 'h': /* SM set mode */
964 for (i
= 0; i
< n
; i
++)
965 modeseq(priv
== '?' ? args
[i
] | 0x80 : args
[i
], 1);
967 case 'l': /* RM reset mode */
968 for (i
= 0; i
< n
; i
++)
969 modeseq(priv
== '?' ? args
[i
] | 0x80 : args
[i
], 0);
971 case 'P': /* DCH delete characters on current line */
972 delete_chars(LIMIT(args
[0], 1, pad_cols() - col
));
974 case '@': /* ICH insert blank characters */
975 insert_chars(LIMIT(args
[0], 1, pad_cols() - col
));
977 case 'n': /* DSR device status report */
980 case 'G': /* CHA move cursor to column in current row */
981 advance(0, MAX(0, args
[0] - 1) - col
, 0);
983 case 'X': /* ECH erase characters on current line */
984 kill_chars(col
, MIN(col
+ MAX(1, args
[0]), pad_cols()));
986 case '[': /* IGN ignored control sequence */
987 case 'E': /* CNL move cursor down and to column 1 */
988 case 'F': /* CPL move cursor up and to column 1 */
989 case 'g': /* TBC clear tab stop (CSI 3 g = clear all stops) */
990 case 'q': /* DECLL set keyboard LEDs */
991 case 's': /* CUPSV save cursor position */
992 case 'u': /* CUPRS restore cursor position */
993 case '`': /* HPA move cursor to column in current row */
995 unknown("csiseq", c
);
1000 static void csiseq_da(int c
)
1004 term_sendstr("\x1b[?6c");
1007 /* we don't care much about cursor shape */
1008 /* printf("csiseq_da <0x%x>\n", c); */
1013 static void csiseq_dsr(int c
)
1015 char status
[1 << 5];
1018 term_sendstr("\x1b[0n");
1021 sprintf(status
, "\x1b[%d;%dR",
1022 (origin() ? row
- top
: row
) + 1, col
+ 1);
1023 term_sendstr(status
);
1026 unknown("csiseq_dsr", c
);
1031 /* ANSI/DEC specified modes for SM/RM ANSI Specified Modes */
1032 static void modeseq(int c
, int set
)
1035 case 0x87: /* DECAWM Auto Wrap */
1036 mode
= BIT_SET(mode
, MODE_WRAP
, set
);
1038 case 0x99: /* DECTCEM Cursor on (set); Cursor off (reset) */
1039 mode
= BIT_SET(mode
, MODE_CURSOR
, set
);
1041 case 0x86: /* DECOM Sets relative coordinates (set); Sets absolute coordinates (reset) */
1042 mode
= BIT_SET(mode
, MODE_ORIGIN
, set
);
1044 case 0x14: /* LNM Line Feed / New Line Mode */
1045 mode
= BIT_SET(mode
, MODE_AUTOCR
, set
);
1047 case 0x04: /* IRM insertion/replacement mode (always reset) */
1048 mode
= BIT_SET(mode
, MODE_INSERT
, set
);
1050 case 0x00: /* IGN Error (Ignored) */
1051 case 0x01: /* GATM guarded-area transfer mode (ignored) */
1052 case 0x02: /* KAM keyboard action mode (always reset) */
1053 case 0x03: /* CRM control representation mode (always reset) */
1054 case 0x05: /* SRTM status-reporting transfer mode */
1055 case 0x06: /* ERM erasure mode (always set) */
1056 case 0x07: /* VEM vertical editing mode (ignored) */
1057 case 0x0a: /* HEM horizontal editing mode */
1058 case 0x0b: /* PUM positioning unit mode */
1059 case 0x0c: /* SRM send/receive mode (echo on/off) */
1060 case 0x0d: /* FEAM format effector action mode */
1061 case 0x0e: /* FETM format effector transfer mode */
1062 case 0x0f: /* MATM multiple area transfer mode */
1063 case 0x10: /* TTM transfer termination mode */
1064 case 0x11: /* SATM selected area transfer mode */
1065 case 0x12: /* TSM tabulation stop mode */
1066 case 0x13: /* EBM editing boundary mode */
1067 /* DEC Private Modes: "?NUM" -> (NUM | 0x80) */
1068 case 0x80: /* IGN Error (Ignored) */
1069 case 0x81: /* DECCKM Cursorkeys application (set); Cursorkeys normal (reset) */
1070 case 0x82: /* DECANM ANSI (set); VT52 (reset) */
1071 case 0x83: /* DECCOLM 132 columns (set); 80 columns (reset) */
1072 case 0x84: /* DECSCLM Jump scroll (set); Smooth scroll (reset) */
1073 case 0x85: /* DECSCNM Reverse screen (set); Normal screen (reset) */
1074 case 0x88: /* DECARM Auto Repeat */
1075 case 0x89: /* DECINLM Interlace */
1076 case 0x92: /* DECPFF Send FF to printer after print screen (set); No char after PS (reset) */
1077 case 0x93: /* DECPEX Print screen: prints full screen (set); prints scroll region (reset) */
1079 unknown("modeseq", c
);