10 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
11 #define CL_VT100 0x0002 /* VT100 */
12 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
13 #define CL_VT102 0x0008 /* VT102 */
14 #define CL_VT220 0x0010 /* VT220 */
15 #define CL_VT320 0x0020 /* VT320 */
16 #define CL_VT420 0x0040 /* VT420 */
17 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
18 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
19 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
20 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
21 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
23 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
24 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
25 #define TM_VT102 (TM_VT100AVO|CL_VT102)
26 #define TM_VT220 (TM_VT102|CL_VT220)
27 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
28 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
30 #define TM_PUTTY (0xFFFF)
32 #define compatibility(x) \
33 if ( ((CL_##x)&compatibility_level) == 0 ) { \
37 #define compatibility2(x,y) \
38 if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \
43 #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
45 static int compatibility_level
= TM_PUTTY
;
48 static unsigned long *text
; /* buffer of text on terminal screen */
49 static unsigned long *scrtop
; /* top of working screen */
50 static unsigned long *disptop
; /* top of displayed screen */
51 static unsigned long *sbtop
; /* top of scrollback */
52 static unsigned long *sbbot
; /* furthest extent of scrollback */
53 static unsigned long *cpos
; /* cursor position (convenience) */
54 static unsigned long *disptext
; /* buffer of text on real screen */
55 static unsigned long *wanttext
; /* buffer of text we want on screen */
56 static unsigned long *alttext
; /* buffer of text on alt. screen */
58 #define VBELL_TIMEOUT 100 /* millisecond duration of visual bell */
61 struct beeptime
*next
;
64 static struct beeptime
*beephead
, *beeptail
;
69 static unsigned char *selspace
; /* buffer for building selections in */
71 #define TSIZE (sizeof(*text))
72 #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0)
74 static unsigned long curr_attr
, save_attr
;
75 static unsigned long erase_char
= ERASE_CHAR
;
77 static int curs_x
, curs_y
; /* cursor */
78 static int save_x
, save_y
; /* saved cursor position */
79 static int marg_t
, marg_b
; /* scroll margins */
80 static int dec_om
; /* DEC origin mode flag */
81 static int wrap
, wrapnext
; /* wrap flags */
82 static int insert
; /* insert-mode flag */
83 static int cset
; /* 0 or 1: which char set */
84 static int save_cset
, save_csattr
; /* saved with cursor position */
85 static int rvideo
; /* global reverse video flag */
86 static int cursor_on
; /* cursor enabled flag */
87 static int reset_132
; /* Flag ESC c resets to 80 cols */
88 static int use_bce
; /* Use Background coloured erase */
89 static int blinker
; /* When blinking is the cursor on ? */
90 static int tblinker
; /* When the blinking text is on */
91 static int blink_is_real
; /* Actually blink blinking text */
92 static int term_echoing
; /* Does terminal want local echo? */
93 static int term_editing
; /* Does terminal want local edit? */
95 static unsigned long cset_attr
[2];
98 * Saved settings on the alternate screen.
100 static int alt_x
, alt_y
, alt_om
, alt_wrap
, alt_wnext
, alt_ins
, alt_cset
;
101 static int alt_t
, alt_b
;
102 static int alt_which
;
104 #define ARGS_MAX 32 /* max # of esc sequence arguments */
105 #define ARG_DEFAULT 0 /* if an arg isn't specified */
106 #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
107 static int esc_args
[ARGS_MAX
];
108 static int esc_nargs
;
109 static int esc_query
;
110 #define ANSI(x,y) ((x)+((y)<<8))
111 #define ANSI_QUE(x) ANSI(x,TRUE)
113 #define OSC_STR_MAX 2048
114 static int osc_strlen
;
115 static char osc_string
[OSC_STR_MAX
+1];
118 static char id_string
[1024] = "\033[?6c";
120 static unsigned char *tabs
;
134 OSC_STRING
, OSC_MAYBE_ST
,
142 NO_SELECTION
, ABOUT_TO
, DRAGGING
, SELECTED
145 SM_CHAR
, SM_WORD
, SM_LINE
147 static unsigned long *selstart
, *selend
, *selanchor
;
149 static short wordness
[256] = {
150 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 01 */
151 0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1, /* 23 */
152 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */
153 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1, /* 67 */
154 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 89 */
155 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* AB */
156 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* CD */
157 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* EF */
160 static unsigned char sel_nl
[] = SEL_NL
;
161 static char * paste_buffer
= 0;
162 static int paste_len
, paste_pos
, paste_hold
;
165 * Internal prototypes.
167 static void do_paint (Context
, int);
168 static void erase_lots (int, int, int);
169 static void swap_screen (int);
170 static void update_sbar (void);
171 static void deselect (void);
172 /* log session to file stuff ... */
173 static FILE *lgfp
= NULL
;
174 static void logtraffic(unsigned char c
, int logmode
);
177 * Set up power-on settings for the terminal.
179 static void power_on(void) {
180 curs_x
= curs_y
= alt_x
= alt_y
= save_x
= save_y
= 0;
183 alt_b
= marg_b
= rows
- 1;
188 for (i
= 0; i
< cols
; i
++)
189 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
191 alt_om
= dec_om
= cfg
.dec_om
;
192 alt_wnext
= wrapnext
= alt_ins
= insert
= FALSE
;
193 alt_wrap
= wrap
= cfg
.wrap_mode
;
195 cset_attr
[0] = cset_attr
[1] = ATTR_ASCII
;
199 save_attr
= curr_attr
= ATTR_DEFAULT
;
200 term_editing
= term_echoing
= FALSE
;
201 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
202 app_cursor_keys
= cfg
.app_cursor
;
203 app_keypad_keys
= cfg
.app_keypad
;
205 blink_is_real
= cfg
.blinktext
;
206 erase_char
= ERASE_CHAR
;
210 for (i
= 0; i
< 256; i
++)
211 wordness
[i
] = cfg
.wordness
[i
];
215 erase_lots (FALSE
, TRUE
, TRUE
);
217 erase_lots (FALSE
, TRUE
, TRUE
);
222 * Force a screen update.
224 void term_update(void) {
228 if ( (seen_key_event
&& (cfg
.scroll_on_key
)) ||
229 (seen_disp_event
&& (cfg
.scroll_on_disp
)) ) {
231 seen_disp_event
= seen_key_event
= 0;
234 do_paint (ctx
, TRUE
);
235 sys_cursor(curs_x
, curs_y
+ (scrtop
- disptop
) / (cols
+1));
241 * Same as power_on(), but an external function.
243 void term_pwron(void) {
252 * Clear the scrollback.
254 void term_clrsb(void) {
255 disptop
= sbtop
= scrtop
;
260 * Initialise the terminal.
262 void term_init(void) {
263 text
= sbtop
= sbbot
= scrtop
= disptop
= cpos
= NULL
;
264 disptext
= wanttext
= NULL
;
270 beephead
= beeptail
= NULL
;
273 beep_overloaded
= FALSE
;
277 * Set up the terminal for a given size.
279 void term_size(int newrows
, int newcols
, int newsavelines
) {
280 unsigned long *newtext
, *newdisp
, *newwant
, *newalt
;
281 int i
, j
, crows
, ccols
;
283 int save_alt_which
= alt_which
;
285 if (newrows
== rows
&& newcols
== cols
&& newsavelines
== savelines
)
286 return; /* nothing to do */
292 alt_b
= marg_b
= newrows
- 1;
294 newtext
= smalloc ((newrows
+newsavelines
)*(newcols
+1)*TSIZE
);
295 sbbot
= newtext
+ newsavelines
*(newcols
+1);
296 for (i
=0; i
<(newrows
+newsavelines
)*(newcols
+1); i
++)
297 newtext
[i
] = erase_char
;
299 crows
= rows
+ (scrtop
- sbtop
) / (cols
+1);
300 if (crows
> newrows
+newsavelines
)
301 crows
= newrows
+newsavelines
;
305 disptop
= newtext
+ (crows
-newrows
)*(newcols
+1);
306 ccols
= (cols
< newcols ? cols
: newcols
);
307 for (i
=0; i
<crows
; i
++) {
308 int oldidx
= (rows
- crows
+ i
) * (cols
+1);
309 int newidx
= (newrows
- crows
+ i
) * (newcols
+1);
311 for (j
=0; j
<ccols
; j
++)
312 disptop
[newidx
+j
] = scrtop
[oldidx
+j
];
313 disptop
[newidx
+newcols
] =
314 (cols
== newcols ? scrtop
[oldidx
+cols
]
315 : (scrtop
[oldidx
+cols
]&LATTR_MODE
));
319 sbtop
= disptop
= newtext
;
325 newdisp
= smalloc (newrows
*(newcols
+1)*TSIZE
);
326 for (i
=0; i
<newrows
*(newcols
+1); i
++)
327 newdisp
[i
] = ATTR_INVALID
;
331 newwant
= smalloc (newrows
*(newcols
+1)*TSIZE
);
332 for (i
=0; i
<newrows
*(newcols
+1); i
++)
333 newwant
[i
] = ATTR_INVALID
;
337 newalt
= smalloc (newrows
*(newcols
+1)*TSIZE
);
338 for (i
=0; i
<newrows
*(newcols
+1); i
++)
339 newalt
[i
] = erase_char
;
344 selspace
= smalloc ( (newrows
+newsavelines
) * (newcols
+sizeof(sel_nl
)) );
346 tabs
= srealloc (tabs
, newcols
*sizeof(*tabs
));
349 for (i
= (cols
> 0 ? cols
: 0); i
< newcols
; i
++)
350 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
354 curs_y
+= newrows
- rows
;
357 if (curs_y
>= newrows
)
359 if (curs_x
>= newcols
)
362 wrapnext
= alt_wnext
= FALSE
;
366 savelines
= newsavelines
;
369 swap_screen(save_alt_which
);
378 static void swap_screen (int which
) {
382 if (which
== alt_which
)
387 for (t
=0; t
<rows
*(cols
+1); t
++) {
388 tt
= scrtop
[t
]; scrtop
[t
] = alttext
[t
]; alttext
[t
] = tt
;
391 t
= curs_x
; curs_x
= alt_x
; alt_x
= t
;
392 t
= curs_y
; curs_y
= alt_y
; alt_y
= t
;
393 t
= marg_t
; marg_t
= alt_t
; alt_t
= t
;
394 t
= marg_b
; marg_b
= alt_b
; alt_b
= t
;
395 t
= dec_om
; dec_om
= alt_om
; alt_om
= t
;
396 t
= wrap
; wrap
= alt_wrap
; alt_wrap
= t
;
397 t
= wrapnext
; wrapnext
= alt_wnext
; alt_wnext
= t
;
398 t
= insert
; insert
= alt_ins
; alt_ins
= t
;
399 t
= cset
; cset
= alt_cset
; alt_cset
= t
;
405 * Update the scroll bar.
407 static void update_sbar(void) {
410 min
= (sbtop
- text
) / (cols
+1);
411 set_sbar ((scrtop
- text
) / (cols
+1) + rows
- min
,
412 (disptop
- text
) / (cols
+1) - min
,
417 * Check whether the region bounded by the two pointers intersects
418 * the scroll region, and de-select the on-screen selection if so.
420 static void check_selection (unsigned long *from
, unsigned long *to
) {
421 if (from
< selend
&& selstart
< to
)
426 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
427 * for backward.) `sb' is TRUE if the scrolling is permitted to
428 * affect the scrollback buffer.
430 static void scroll (int topline
, int botline
, int lines
, int sb
) {
431 unsigned long *scroll_top
;
432 unsigned long *newscr
;
433 int scroll_size
, size
, i
;
434 int scrtop_is_disptop
= (scrtop
==disptop
);
435 static int recursive
= 0;
437 /* Only scroll more than the window if we're doing a 10% scroll */
438 if (!recursive
&& lines
> botline
- topline
+ 1)
439 lines
= botline
- topline
+ 1;
441 scroll_top
= scrtop
+ topline
*(cols
+1);
442 size
= (lines
< 0 ?
-lines
: lines
) * (cols
+1);
443 scroll_size
= (botline
- topline
+ 1) * (cols
+1) - size
;
445 if (lines
> 0 && topline
== 0 && alt_which
== 0 && sb
) {
447 * Since we're going to scroll the top line and we're on the
448 * scrolling screen let's also effect the scrollback buffer.
450 * This is normally done by moving the position the screen
451 * painter reads from to reduce the amount of memory copying
454 if (scroll_size
>= 0 && !recursive
) {
455 newscr
= scrtop
+ lines
* (cols
+1);
457 if (newscr
> sbbot
&& botline
== rows
-1) {
458 /* We've hit the bottom of memory, so we have to do a
459 * physical scroll. But instead of just 1 line do it
460 * by 10% of the available memory.
462 * If the scroll region isn't the whole screen then we can't
463 * do this as it stands. We would need to recover the bottom
464 * of the screen from the scroll buffer after being sure that
465 * it doesn't get deleted.
468 i
= (rows
+savelines
)/10;
470 /* Make it simple and ensure safe recursion */
471 if ( i
<savelines
-1) {
473 scroll(topline
, botline
, i
, sb
);
476 newscr
= scrtop
- i
* (cols
+1);
477 if (scrtop_is_disptop
) disptop
= newscr
;
481 newscr
= scrtop
+ lines
* (cols
+1);
484 if (newscr
<= sbbot
) {
485 if (scrtop_is_disptop
) disptop
= newscr
;
488 if (botline
== rows
-1 )
489 for (i
= 0; i
< size
; i
++)
490 scrtop
[i
+scroll_size
] = erase_char
;
495 if (botline
!= rows
-1) {
496 /* This fastscroll only works for full window scrolls.
497 * If the caller wanted a partial one we have to reverse
498 * scroll the bottom of the screen.
500 scroll(botline
-lines
+1, rows
-1, -lines
, 0);
505 /* If we can't scroll by memory remapping do it physically.
506 * But rather than expensivly doing the scroll buffer just
507 * scroll the screen. All it means is that sometimes we choose
508 * to not add lines from a scroll region to the scroll buffer.
511 if (savelines
<= 400) {
512 sbtop
-= lines
* (cols
+1);
515 scroll_size
+= scroll_top
- sbtop
;
521 /* Ho hum, expensive scroll required. */
523 sbtop
-= lines
* (cols
+1);
526 scroll_size
+= scroll_top
- sbtop
;
533 if (scroll_size
< 0) {
540 memmove (scroll_top
, scroll_top
+ size
, scroll_size
*TSIZE
);
541 for (i
= 0; i
< size
; i
++)
542 scroll_top
[i
+scroll_size
] = erase_char
;
543 if (selstart
> scroll_top
&&
544 selstart
< scroll_top
+ size
+ scroll_size
) {
546 if (selstart
< scroll_top
)
547 selstart
= scroll_top
;
549 if (selend
> scroll_top
&&
550 selend
< scroll_top
+ size
+ scroll_size
) {
552 if (selend
< scroll_top
)
555 if (scrtop_is_disptop
)
558 if (disptop
> scroll_top
&&
559 disptop
< scroll_top
+ size
+ scroll_size
) {
561 if (disptop
< scroll_top
)
562 disptop
= scroll_top
;
566 memmove (scroll_top
+ size
, scroll_top
, scroll_size
*TSIZE
);
567 for (i
= 0; i
< size
; i
++)
568 scroll_top
[i
] = erase_char
;
569 if (selstart
> scroll_top
&&
570 selstart
< scroll_top
+ size
+ scroll_size
) {
572 if (selstart
> scroll_top
+ size
+ scroll_size
)
573 selstart
= scroll_top
+ size
+ scroll_size
;
575 if (selend
> scroll_top
&&
576 selend
< scroll_top
+ size
+ scroll_size
) {
578 if (selend
> scroll_top
+ size
+ scroll_size
)
579 selend
= scroll_top
+ size
+ scroll_size
;
581 if (scrtop_is_disptop
)
583 else if (disptop
> scroll_top
&&
584 disptop
< scroll_top
+ size
+ scroll_size
) {
586 if (disptop
> scroll_top
+ size
+ scroll_size
)
587 disptop
= scroll_top
+ size
+ scroll_size
;
593 * Move the cursor to a given position, clipping at boundaries. We
594 * may or may not want to clip at the scroll margin: marg_clip is 0
595 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
596 * even _being_ outside the margins.
598 static void move (int x
, int y
, int marg_clip
) {
604 if ((curs_y
>= marg_t
|| marg_clip
== 2) && y
< marg_t
)
606 if ((curs_y
<= marg_b
|| marg_clip
== 2) && y
> marg_b
)
620 * Save or restore the cursor and SGR mode.
622 static void save_cursor(int save
) {
626 save_attr
= curr_attr
;
628 save_csattr
= cset_attr
[cset
];
632 /* Make sure the window hasn't shrunk since the save */
633 if (curs_x
>= cols
) curs_x
= cols
-1;
634 if (curs_y
>= rows
) curs_y
= rows
-1;
636 curr_attr
= save_attr
;
638 cset_attr
[cset
] = save_csattr
;
640 if (use_bce
) erase_char
= (' ' |(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
645 * Erase a large portion of the screen: the whole screen, or the
646 * whole line, or parts thereof.
648 static void erase_lots (int line_only
, int from_begin
, int to_end
) {
649 unsigned long *startpos
, *endpos
;
652 startpos
= cpos
- curs_x
;
653 endpos
= startpos
+ cols
;
654 /* I've removed the +1 so that the Wide screen stuff is not
655 * removed when it shouldn't be.
659 endpos
= startpos
+ rows
* (cols
+1);
665 check_selection (startpos
, endpos
);
667 /* Clear screen also forces a full window redraw, just in case. */
668 if (startpos
== scrtop
&& endpos
== scrtop
+ rows
* (cols
+1))
671 while (startpos
< endpos
)
672 *startpos
++ = erase_char
;
676 * Insert or delete characters within the current line. n is +ve if
677 * insertion is desired, and -ve for deletion.
679 static void insch (int n
) {
680 int dir
= (n
< 0 ?
-1 : +1);
683 n
= (n
< 0 ?
-n
: n
);
684 if (n
> cols
- curs_x
)
686 m
= cols
- curs_x
- n
;
687 check_selection (cpos
, cpos
+n
);
689 memmove (cpos
, cpos
+n
, m
*TSIZE
);
691 cpos
[m
++] = erase_char
;
693 memmove (cpos
+n
, cpos
, m
*TSIZE
);
695 cpos
[n
] = erase_char
;
700 * Toggle terminal mode `mode' to state `state'. (`query' indicates
701 * whether the mode is a DEC private one or a normal one.)
703 static void toggle_mode (int mode
, int query
, int state
) {
704 if (query
) switch (mode
) {
705 case 1: /* application cursor keys */
706 app_cursor_keys
= state
;
708 case 2: /* VT52 mode */
711 case 3: /* 80/132 columns */
713 request_resize (state ?
132 : 80, rows
, 1);
716 case 5: /* reverse video */
718 seen_disp_event
= TRUE
;
719 if (state
) term_update();
721 case 6: /* DEC origin mode */
724 case 7: /* auto wrap */
727 case 8: /* auto key repeat */
730 case 10: /* set local edit mode */
731 term_editing
= state
;
732 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
734 case 25: /* enable/disable cursor */
735 compatibility2(OTHER
,VT220
);
737 seen_disp_event
= TRUE
;
739 case 47: /* alternate screen */
740 compatibility(OTHER
);
745 } else switch (mode
) {
746 case 4: /* set insert mode */
747 compatibility(VT102
);
750 case 12: /* set echo mode */
751 term_echoing
= !state
;
752 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
754 case 20: /* Return sends ... */
755 cr_lf_return
= state
;
761 * Process an OSC sequence: set window title or icon name.
763 static void do_osc(void) {
766 wordness
[(unsigned char)osc_string
[osc_strlen
]] = esc_args
[0];
768 osc_string
[osc_strlen
] = '\0';
769 switch (esc_args
[0]) {
772 set_icon (osc_string
);
773 if (esc_args
[0] == 1)
775 /* fall through: parameter 0 means set both */
778 set_title (osc_string
);
785 * Remove everything currently in `inbuf' and stick it up on the
786 * in-memory display. There's a big state machine in here to
787 * process escape sequences...
789 void term_out(void) {
792 for(inbuf_reap
= 0; inbuf_reap
< inbuf_head
; inbuf_reap
++)
794 c
= inbuf
[inbuf_reap
];
797 * Optionally log the session traffic to a file. Useful for
798 * debugging and possibly also useful for actual logging.
800 logtraffic((unsigned char)c
, LGTYP_DEBUG
);
802 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
803 * be able to display 8-bit characters, but I'll let that go 'cause
806 if( ( (c
&0x60) == 0 || c
== '\177') &&
807 termstate
< DO_CTRLS
&&
808 ( (c
&0x80) == 0 || has_compat(VT220
))) {
810 case '\005': /* terminal type query */
811 /* Strictly speaking this is VT100 but a VT100 defaults to
812 * no response. Other terminals respond at their option.
814 * Don't put a CR in the default string as this tends to
815 * upset some weird software.
817 * An xterm returns "xterm" (5 characters)
819 compatibility(ANSIMIN
);
821 char abuf
[256], *s
, *d
;
823 for(s
=cfg
.answerback
, d
=abuf
; *s
; s
++) {
826 if (*s
>= 'a' && *s
<= 'z')
827 *d
++ = (*s
- ('a'-1));
828 else if ((*s
>='@' && *s
<='_') ||
829 *s
== '?' || (*s
&0x80))
835 else if (*s
== '^') {
839 *d
++ = xlat_kbd2tty((unsigned char)*s
);
841 ldisc_send (abuf
, d
-abuf
);
846 struct beeptime
*newbeep
;
849 ticks
= GetTickCount();
851 if (!beep_overloaded
) {
852 newbeep
= smalloc(sizeof(struct beeptime
));
853 newbeep
->ticks
= ticks
;
854 newbeep
->next
= NULL
;
858 beeptail
->next
= newbeep
;
864 * Throw out any beeps that happened more than
868 beephead
->ticks
< ticks
- cfg
.bellovl_t
*1000) {
869 struct beeptime
*tmp
= beephead
;
870 beephead
= tmp
->next
;
877 if (cfg
.bellovl
&& beep_overloaded
&&
878 ticks
-lastbeep
>= cfg
.bellovl_s
* 1000) {
880 * If we're currently overloaded and the
881 * last beep was more than s seconds ago,
882 * leave overload mode.
884 beep_overloaded
= FALSE
;
885 } else if (cfg
.bellovl
&& !beep_overloaded
&&
886 nbeeps
>= cfg
.bellovl_n
) {
888 * Now, if we have n or more beeps
889 * remaining in the queue, go into overload
892 beep_overloaded
= TRUE
;
897 * Perform an actual beep if we're not overloaded.
899 if ((!cfg
.bellovl
|| !beep_overloaded
) && cfg
.beep
!= 0) {
902 else if(cfg
.beep
== 2) {
904 vbell_timeout
= ticks
+ VBELL_TIMEOUT
;
912 if (curs_x
== 0 && curs_y
== 0)
914 else if (curs_x
== 0 && curs_y
> 0)
915 curs_x
= cols
-1, curs_y
--;
921 seen_disp_event
= TRUE
;
924 compatibility(VT100
);
928 compatibility(VT100
);
933 termstate
= VT52_ESC
;
935 compatibility(ANSIMIN
);
936 termstate
= SEEN_ESC
;
940 compatibility(VT220
);
941 termstate
= SEEN_CSI
;
943 esc_args
[0] = ARG_DEFAULT
;
947 compatibility(VT220
);
948 termstate
= SEEN_OSC
;
955 seen_disp_event
= TRUE
;
957 logtraffic((unsigned char)c
,LGTYP_ASCII
);
961 compatibility(VT100
);
963 if (curs_y
== marg_b
)
964 scroll (marg_t
, marg_b
, 1, TRUE
);
965 else if (curs_y
< rows
-1)
973 logtraffic((unsigned char)c
,LGTYP_ASCII
);
977 unsigned long *old_cpos
= cpos
;
978 unsigned long *p
= scrtop
+ curs_y
* (cols
+1) + cols
;
982 } while (curs_x
< cols
-1 && !tabs
[curs_x
]);
984 if ((*p
& LATTR_MODE
) != LATTR_NORM
)
986 if (curs_x
>= cols
/2)
996 check_selection (old_cpos
, cpos
);
998 seen_disp_event
= TRUE
;
1000 case '\177': /* Destructive backspace
1001 This does nothing on a real VT100 */
1002 compatibility(OTHER
);
1003 if (curs_x
&& !wrapnext
) curs_x
--;
1006 *cpos
= (' ' | curr_attr
| ATTR_ASCII
);
1010 else switch (termstate
) {
1012 /* Only graphic characters get this far, ctrls are stripped above */
1013 if (wrapnext
&& wrap
) {
1014 cpos
[1] |= ATTR_WRAPPED
;
1015 if (curs_y
== marg_b
)
1016 scroll (marg_t
, marg_b
, 1, TRUE
);
1017 else if (curs_y
< rows
-1)
1025 if (selstate
!= NO_SELECTION
)
1026 check_selection (cpos
, cpos
+1);
1027 switch (cset_attr
[cset
]) {
1028 /* Linedraw characters are different from 'ESC ( B' only
1029 * for a small range, for ones outside that range make sure
1030 * we use the same font as well as the same encoding.
1033 if (c
<0x5f || c
>0x7F)
1034 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
1037 *cpos
++ = ' ' | curr_attr
| ATTR_ASCII
;
1039 *cpos
++ = ((unsigned char)c
) | curr_attr
| ATTR_LINEDRW
;
1042 /* If UK-ASCII, make the '#' a LineDraw Pound */
1044 *cpos
++ = '}' | curr_attr
| ATTR_LINEDRW
;
1049 *cpos
= xlat_tty2scr((unsigned char)c
) | curr_attr
|
1050 (c
<= 0x7F ? cset_attr
[cset
] : ATTR_ASCII
);
1051 logtraffic((unsigned char)c
, LGTYP_ASCII
);
1056 if (curs_x
== cols
) {
1061 seen_disp_event
= 1;
1065 termstate
= TOPLEVEL
;
1069 * This state is virtually identical to SEEN_ESC, with the
1070 * exception that we have an OSC sequence in the pipeline,
1071 * and _if_ we see a backslash, we process it.
1075 termstate
= TOPLEVEL
;
1078 /* else fall through */
1080 termstate
= TOPLEVEL
;
1082 case ' ': /* some weird sequence? */
1083 compatibility(VT220
);
1084 termstate
= IGNORE_NEXT
;
1086 case '[': /* enter CSI mode */
1087 termstate
= SEEN_CSI
;
1089 esc_args
[0] = ARG_DEFAULT
;
1092 case ']': /* xterm escape sequences */
1093 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1094 compatibility(OTHER
);
1095 termstate
= SEEN_OSC
;
1098 case '(': /* should set GL */
1099 compatibility(VT100
);
1102 case ')': /* should set GR */
1103 compatibility(VT100
);
1106 case '7': /* save cursor */
1107 compatibility(VT100
);
1110 case '8': /* restore cursor */
1111 compatibility(VT100
);
1112 save_cursor (FALSE
);
1113 seen_disp_event
= TRUE
;
1116 compatibility(VT100
);
1117 app_keypad_keys
= TRUE
;
1120 compatibility(VT100
);
1121 app_keypad_keys
= FALSE
;
1123 case 'D': /* exactly equivalent to LF */
1124 compatibility(VT100
);
1125 if (curs_y
== marg_b
)
1126 scroll (marg_t
, marg_b
, 1, TRUE
);
1127 else if (curs_y
< rows
-1)
1131 seen_disp_event
= TRUE
;
1133 case 'E': /* exactly equivalent to CR-LF */
1134 compatibility(VT100
);
1136 if (curs_y
== marg_b
)
1137 scroll (marg_t
, marg_b
, 1, TRUE
);
1138 else if (curs_y
< rows
-1)
1142 seen_disp_event
= TRUE
;
1144 case 'M': /* reverse index - backwards LF */
1145 compatibility(VT100
);
1146 if (curs_y
== marg_t
)
1147 scroll (marg_t
, marg_b
, -1, TRUE
);
1148 else if (curs_y
> 0)
1152 seen_disp_event
= TRUE
;
1154 case 'Z': /* terminal type query */
1155 compatibility(VT100
);
1156 ldisc_send (id_string
, strlen(id_string
));
1158 case 'c': /* restore power-on settings */
1159 compatibility(VT100
);
1162 request_resize (80, rows
, 1);
1167 seen_disp_event
= TRUE
;
1169 case '#': /* ESC # 8 fills screen with Es :-) */
1170 compatibility(VT100
);
1171 termstate
= SEEN_ESCHASH
;
1173 case 'H': /* set a tab */
1174 compatibility(VT100
);
1175 tabs
[curs_x
] = TRUE
;
1180 termstate
= TOPLEVEL
; /* default */
1183 if (esc_nargs
<= ARGS_MAX
) {
1184 if (esc_args
[esc_nargs
-1] == ARG_DEFAULT
)
1185 esc_args
[esc_nargs
-1] = 0;
1186 esc_args
[esc_nargs
-1] =
1187 10 * esc_args
[esc_nargs
-1] + c
- '0';
1189 termstate
= SEEN_CSI
;
1193 if (++esc_nargs
<= ARGS_MAX
)
1194 esc_args
[esc_nargs
-1] = ARG_DEFAULT
;
1195 termstate
= SEEN_CSI
;
1199 if( esc_query
) esc_query
= -1;
1200 else if( c
== '?' ) esc_query
= TRUE
;
1202 termstate
= SEEN_CSI
;
1204 else switch (ANSI(c
,esc_query
)) {
1205 case 'A': /* move up N lines */
1206 move (curs_x
, curs_y
- def(esc_args
[0], 1), 1);
1207 seen_disp_event
= TRUE
;
1209 case 'e': /* move down N lines */
1210 compatibility(ANSI
);
1212 move (curs_x
, curs_y
+ def(esc_args
[0], 1), 1);
1213 seen_disp_event
= TRUE
;
1215 case 'a': /* move right N cols */
1216 compatibility(ANSI
);
1218 move (curs_x
+ def(esc_args
[0], 1), curs_y
, 1);
1219 seen_disp_event
= TRUE
;
1221 case 'D': /* move left N cols */
1222 move (curs_x
- def(esc_args
[0], 1), curs_y
, 1);
1223 seen_disp_event
= TRUE
;
1225 case 'E': /* move down N lines and CR */
1226 compatibility(ANSI
);
1227 move (0, curs_y
+ def(esc_args
[0], 1), 1);
1228 seen_disp_event
= TRUE
;
1230 case 'F': /* move up N lines and CR */
1231 compatibility(ANSI
);
1232 move (0, curs_y
- def(esc_args
[0], 1), 1);
1233 seen_disp_event
= TRUE
;
1235 case 'G': case '`': /* set horizontal posn */
1236 compatibility(ANSI
);
1237 move (def(esc_args
[0], 1) - 1, curs_y
, 0);
1238 seen_disp_event
= TRUE
;
1240 case 'd': /* set vertical posn */
1241 compatibility(ANSI
);
1242 move (curs_x
, (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1244 seen_disp_event
= TRUE
;
1246 case 'H': case 'f': /* set horz and vert posns at once */
1248 esc_args
[1] = ARG_DEFAULT
;
1249 move (def(esc_args
[1], 1) - 1,
1250 (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1252 seen_disp_event
= TRUE
;
1254 case 'J': /* erase screen or parts of it */
1256 unsigned int i
= def(esc_args
[0], 0) + 1;
1259 erase_lots(FALSE
, !!(i
& 2), !!(i
& 1));
1262 seen_disp_event
= TRUE
;
1264 case 'K': /* erase line or parts of it */
1266 unsigned int i
= def(esc_args
[0], 0) + 1;
1269 erase_lots(TRUE
, !!(i
& 2), !!(i
& 1));
1271 seen_disp_event
= TRUE
;
1273 case 'L': /* insert lines */
1274 compatibility(VT102
);
1275 if (curs_y
<= marg_b
)
1276 scroll (curs_y
, marg_b
, -def(esc_args
[0], 1), FALSE
);
1277 seen_disp_event
= TRUE
;
1279 case 'M': /* delete lines */
1280 compatibility(VT102
);
1281 if (curs_y
<= marg_b
)
1282 scroll (curs_y
, marg_b
, def(esc_args
[0], 1), TRUE
);
1283 seen_disp_event
= TRUE
;
1285 case '@': /* insert chars */
1286 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1287 compatibility(VT102
);
1288 insch (def(esc_args
[0], 1));
1289 seen_disp_event
= TRUE
;
1291 case 'P': /* delete chars */
1292 compatibility(VT102
);
1293 insch (-def(esc_args
[0], 1));
1294 seen_disp_event
= TRUE
;
1296 case 'c': /* terminal type query */
1297 compatibility(VT100
);
1298 /* This is the response for a VT102 */
1299 ldisc_send (id_string
, strlen(id_string
));
1301 case 'n': /* cursor position query */
1302 if (esc_args
[0] == 6) {
1304 sprintf (buf
, "\033[%d;%dR", curs_y
+ 1, curs_x
+ 1);
1305 ldisc_send (buf
, strlen(buf
));
1307 else if (esc_args
[0] == 5) {
1308 ldisc_send ("\033[0n", 4);
1311 case 'h': /* toggle modes to high */
1313 compatibility(VT100
);
1316 for (i
=0; i
<esc_nargs
; i
++)
1317 toggle_mode (esc_args
[i
], esc_query
, TRUE
);
1320 case 'l': /* toggle modes to low */
1322 compatibility(VT100
);
1325 for (i
=0; i
<esc_nargs
; i
++)
1326 toggle_mode (esc_args
[i
], esc_query
, FALSE
);
1329 case 'g': /* clear tabs */
1330 compatibility(VT100
);
1331 if (esc_nargs
== 1) {
1332 if (esc_args
[0] == 0) {
1333 tabs
[curs_x
] = FALSE
;
1334 } else if (esc_args
[0] == 3) {
1336 for (i
= 0; i
< cols
; i
++)
1341 case 'r': /* set scroll margins */
1342 compatibility(VT100
);
1343 if (esc_nargs
<= 2) {
1345 top
= def(esc_args
[0], 1) - 1;
1346 bot
= (esc_nargs
<= 1 || esc_args
[1] == 0 ? rows
:
1347 def(esc_args
[1], rows
)) - 1;
1350 /* VTTEST Bug 9 - if region is less than 2 lines
1351 * don't change region.
1358 * I used to think the cursor should be
1359 * placed at the top of the newly marginned
1360 * area. Apparently not: VMS TPU falls over
1363 * Well actually it should for Origin mode - RDB
1365 curs_y
= (dec_om ? marg_t
: 0);
1367 seen_disp_event
= TRUE
;
1371 case 'm': /* set graphics rendition */
1374 * A VT100 without the AVO only had one attribute, either
1375 * underline or reverse video depending on the cursor type,
1376 * this was selected by CSI 7m.
1379 * This is DIM on the VT100-AVO and VT102
1381 * This is BLINK on the VT100-AVO and VT102+
1383 * This is INVIS on the VT100-AVO and VT102
1385 * This like 22 disables BOLD, DIM and INVIS
1387 * The ANSI colours appear on any terminal that has colour
1388 * (obviously) but the interaction between sgr0 and the
1389 * colours varies but is usually related to the background
1390 * colour erase item.
1391 * The interaction between colour attributes and the mono
1392 * ones is also very implementation dependent.
1394 * The 39 and 49 attributes are likely to be unimplemented.
1397 for (i
=0; i
<esc_nargs
; i
++) {
1398 switch (def(esc_args
[i
], 0)) {
1399 case 0: /* restore defaults */
1400 curr_attr
= ATTR_DEFAULT
; break;
1401 case 1: /* enable bold */
1402 compatibility(VT100AVO
);
1403 curr_attr
|= ATTR_BOLD
; break;
1404 case 21: /* (enable double underline) */
1405 compatibility(OTHER
);
1406 case 4: /* enable underline */
1407 compatibility(VT100AVO
);
1408 curr_attr
|= ATTR_UNDER
; break;
1409 case 5: /* enable blink */
1410 compatibility(VT100AVO
);
1411 curr_attr
|= ATTR_BLINK
; break;
1412 case 7: /* enable reverse video */
1413 curr_attr
|= ATTR_REVERSE
; break;
1414 case 22: /* disable bold */
1415 compatibility2(OTHER
,VT220
);
1416 curr_attr
&= ~ATTR_BOLD
; break;
1417 case 24: /* disable underline */
1418 compatibility2(OTHER
,VT220
);
1419 curr_attr
&= ~ATTR_UNDER
; break;
1420 case 25: /* disable blink */
1421 compatibility2(OTHER
,VT220
);
1422 curr_attr
&= ~ATTR_BLINK
; break;
1423 case 27: /* disable reverse video */
1424 compatibility2(OTHER
,VT220
);
1425 curr_attr
&= ~ATTR_REVERSE
; break;
1426 case 30: case 31: case 32: case 33:
1427 case 34: case 35: case 36: case 37:
1429 curr_attr
&= ~ATTR_FGMASK
;
1430 curr_attr
|= (esc_args
[i
] - 30) << ATTR_FGSHIFT
;
1432 case 39: /* default-foreground */
1433 curr_attr
&= ~ATTR_FGMASK
;
1434 curr_attr
|= ATTR_DEFFG
;
1436 case 40: case 41: case 42: case 43:
1437 case 44: case 45: case 46: case 47:
1439 curr_attr
&= ~ATTR_BGMASK
;
1440 curr_attr
|= (esc_args
[i
] - 40) << ATTR_BGSHIFT
;
1442 case 49: /* default-background */
1443 curr_attr
&= ~ATTR_BGMASK
;
1444 curr_attr
|= ATTR_DEFBG
;
1451 (curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
|ATTR_BLINK
))
1455 case 's': /* save cursor */
1458 case 'u': /* restore cursor */
1459 save_cursor (FALSE
);
1460 seen_disp_event
= TRUE
;
1462 case 't': /* set page size - ie window height */
1464 * VT340/VT420 sequence DECSLPP, DEC only allows values
1465 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1466 * illegal values (eg first arg 1..9) for window changing
1469 compatibility(VT340TEXT
);
1470 if (esc_nargs
<=1 && (esc_args
[0]<1 || esc_args
[0]>=24)) {
1471 request_resize (cols
, def(esc_args
[0], 24), 0);
1475 case ANSI('|', '*'):
1476 /* VT420 sequence DECSNLS
1477 * Set number of lines on screen
1478 * VT420 uses VGA like hardware and can support any size in
1479 * reasonable range (24..49 AIUI) with no default specified.
1481 compatibility(VT420
);
1482 if (esc_nargs
==1 && esc_args
[0]>0) {
1483 request_resize (cols
, def(esc_args
[0], cfg
.height
), 0);
1487 case ANSI('|', '$'):
1488 /* VT340/VT420 sequence DECSCPP
1489 * Set number of columns per page
1490 * Docs imply range is only 80 or 132, but I'll allow any.
1492 compatibility(VT340TEXT
);
1494 request_resize (def(esc_args
[0], cfg
.width
), rows
, 0);
1498 case 'X': /* write N spaces w/o moving cursor */
1499 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1500 compatibility(ANSIMIN
);
1502 int n
= def(esc_args
[0], 1);
1503 unsigned long *p
= cpos
;
1504 if (n
> cols
- curs_x
)
1506 check_selection (cpos
, cpos
+n
);
1509 seen_disp_event
= TRUE
;
1512 case 'x': /* report terminal characteristics */
1513 compatibility(VT100
);
1516 int i
= def(esc_args
[0], 0);
1517 if (i
== 0 || i
== 1) {
1518 strcpy (buf
, "\033[2;1;1;112;112;1;0x");
1520 ldisc_send (buf
, 20);
1525 compatibility(OTHER
);
1526 use_bce
= (esc_args
[0]<=0);
1527 erase_char
= ERASE_CHAR
;
1529 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1532 compatibility(OTHER
);
1533 blink_is_real
= (esc_args
[0]>=1);
1536 /* Allow the host to make this emulator a 'perfect' VT102.
1537 * This first appeared in the VT220, but we do need to get
1538 * back to PuTTY mode so I won't check it.
1540 * The arg in 40..42 are a PuTTY extension.
1541 * The 2nd arg, 8bit vs 7bit is not checked.
1543 * Setting VT102 mode should also change the Fkeys to
1544 * generate PF* codes as a real VT102 has no Fkeys.
1545 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1548 * Note ESC c will NOT change this!
1551 switch (esc_args
[0]) {
1552 case 61: compatibility_level
&= ~TM_VTXXX
;
1553 compatibility_level
|= TM_VT102
; break;
1554 case 62: compatibility_level
&= ~TM_VTXXX
;
1555 compatibility_level
|= TM_VT220
; break;
1557 default: if( esc_args
[0] > 60 && esc_args
[0] < 70 )
1558 compatibility_level
|= TM_VTXXX
;
1561 case 40: compatibility_level
&= TM_VTXXX
; break;
1562 case 41: compatibility_level
= TM_PUTTY
; break;
1563 case 42: compatibility_level
= TM_SCOANSI
; break;
1566 compatibility_level
= TM_PUTTY
; break;
1570 /* Change the response to CSI c */
1571 if (esc_args
[0] == 50) {
1574 strcpy(id_string
, "\033[?");
1575 for (i
=1; i
<esc_nargs
; i
++) {
1576 if (i
!=1) strcat(id_string
, ";");
1577 sprintf(lbuf
, "%d", esc_args
[i
]);
1578 strcat(id_string
, lbuf
);
1580 strcat(id_string
, "c");
1584 /* Is this a good idea ?
1585 * Well we should do a soft reset at this point ...
1587 if (!has_compat(VT420
) && has_compat(VT100
)) {
1588 if (reset_132
) request_resize (132, 24, 1);
1589 else request_resize ( 80, 24, 1);
1597 /* VT100 only here, checked above */
1600 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_GBCHR
;
1603 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_LINEDRW
;
1606 default: /* specifically, 'B' */
1607 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_ASCII
;
1610 if( !has_compat(VT220
) || c
!= '%' )
1611 termstate
= TOPLEVEL
;
1616 case 'P': /* Linux palette sequence */
1617 termstate
= SEEN_OSC_P
;
1620 case 'R': /* Linux palette reset */
1623 termstate
= TOPLEVEL
;
1625 case 'W': /* word-set */
1626 termstate
= SEEN_OSC_W
;
1629 case '0': case '1': case '2': case '3': case '4':
1630 case '5': case '6': case '7': case '8': case '9':
1631 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1635 * Grotty hack to support xterm and DECterm title
1636 * sequences concurrently.
1638 if (esc_args
[0] == 2) {
1642 /* else fall through */
1644 termstate
= OSC_STRING
;
1650 * This OSC stuff is EVIL. It takes just one character to get into
1651 * sysline mode and it's not initially obvious how to get out.
1652 * So I've added CR and LF as string aborts.
1653 * This shouldn't effect compatibility as I believe embedded
1654 * control characters are supposed to be interpreted (maybe?)
1655 * and they don't display anything useful anyway.
1659 if (c
== '\n' || c
== '\r') {
1660 termstate
= TOPLEVEL
;
1661 } else if (c
== 0234 || c
== '\007' ) {
1663 * These characters terminate the string; ST and BEL
1664 * terminate the sequence and trigger instant
1665 * processing of it, whereas ESC goes back to SEEN_ESC
1666 * mode unless it is followed by \, in which case it is
1667 * synonymous with ST in the first place.
1670 termstate
= TOPLEVEL
;
1671 } else if (c
== '\033')
1672 termstate
= OSC_MAYBE_ST
;
1673 else if (osc_strlen
< OSC_STR_MAX
)
1674 osc_string
[osc_strlen
++] = c
;
1678 int max
= (osc_strlen
== 0 ?
21 : 16);
1680 if (c
>= '0' && c
<= '9')
1682 else if (c
>= 'A' && c
<= 'A'+max
-10)
1684 else if (c
>= 'a' && c
<= 'a'+max
-10)
1687 termstate
= TOPLEVEL
;
1688 osc_string
[osc_strlen
++] = val
;
1689 if (osc_strlen
>= 7) {
1690 palette_set (osc_string
[0],
1691 osc_string
[1] * 16 + osc_string
[2],
1692 osc_string
[3] * 16 + osc_string
[4],
1693 osc_string
[5] * 16 + osc_string
[6]);
1695 termstate
= TOPLEVEL
;
1701 case '0': case '1': case '2': case '3': case '4':
1702 case '5': case '6': case '7': case '8': case '9':
1703 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1706 termstate
= OSC_STRING
;
1713 unsigned long nlattr
;
1719 n
= rows
* (cols
+1);
1721 *p
++ = ATTR_DEFAULT
| 'E';
1723 seen_disp_event
= TRUE
;
1724 check_selection (scrtop
, scrtop
+ rows
* (cols
+1));
1727 case '3': nlattr
= LATTR_TOP
; if(0) {
1728 case '4': nlattr
= LATTR_BOT
; } if(0) {
1729 case '5': nlattr
= LATTR_NORM
; } if(0) {
1730 case '6': nlattr
= LATTR_WIDE
; }
1732 p
= scrtop
+ curs_y
* (cols
+1) + cols
;
1737 termstate
= TOPLEVEL
;
1740 termstate
= TOPLEVEL
;
1741 seen_disp_event
= TRUE
;
1744 move (curs_x
, curs_y
- 1, 1);
1747 move (curs_x
, curs_y
+ 1, 1);
1750 move (curs_x
+ 1, curs_y
, 1);
1753 move (curs_x
- 1, curs_y
, 1);
1756 cset_attr
[cset
=0] = ATTR_LINEDRW
;
1759 cset_attr
[cset
=0] = ATTR_ASCII
;
1766 scroll (0, rows
-1, -1, TRUE
);
1767 else if (curs_y
> 0)
1773 erase_lots(FALSE
, FALSE
, TRUE
);
1777 erase_lots(TRUE
, FALSE
, TRUE
);
1780 /* XXX Print cursor line */
1783 /* XXX Start controller mode */
1786 /* XXX Stop controller mode */
1789 termstate
= VT52_Y1
;
1792 ldisc_send ("\033/Z", 3);
1795 app_keypad_keys
= TRUE
;
1798 app_keypad_keys
= FALSE
;
1801 /* XXX This should switch to VT100 mode not current or default
1802 * VT mode. But this will only have effect in a VT220+
1808 /* XXX Enter auto print mode */
1811 /* XXX Exit auto print mode */
1814 /* XXX Print screen */
1819 termstate
= VT52_Y2
;
1820 move(curs_x
, c
-' ', 0);
1823 termstate
= TOPLEVEL
;
1824 move(c
-' ', curs_y
, 0);
1827 if (selstate
!= NO_SELECTION
)
1828 check_selection (cpos
, cpos
+1);
1834 * Compare two lines to determine whether they are sufficiently
1835 * alike to scroll-optimise one to the other. Return the degree of
1838 static int linecmp (unsigned long *a
, unsigned long *b
) {
1841 for (i
=n
=0; i
< cols
; i
++)
1842 n
+= (*a
++ == *b
++);
1847 * Given a context, update the window. Out of paranoia, we don't
1848 * allow WM_PAINT responses to do scrolling optimisations.
1850 static void do_paint (Context ctx
, int may_optimise
){
1851 int i
, j
, start
, our_curs_y
;
1852 unsigned long attr
, rv
, cursor
;
1857 * Check the visual bell state.
1860 ticks
= GetTickCount();
1861 if (ticks
- vbell_timeout
>= 0)
1866 * screen array, disptop, scrtop,
1868 * cfg.blinkpc, blink_is_real, tblinker,
1869 * curs_y, curs_x, blinker, cfg.blink_cur, cursor_on, has_focus
1873 if (blinker
|| !cfg
.blink_cur
)
1874 cursor
= ATTR_ACTCURS
;
1879 cursor
= ATTR_PASCURS
;
1881 cursor
|= ATTR_RIGHTCURS
;
1885 rv
= (!rvideo
^ !in_vbell ? ATTR_REVERSE
: 0);
1886 our_curs_y
= curs_y
+ (scrtop
- disptop
) / (cols
+1);
1888 for (i
=0; i
<rows
; i
++) {
1889 int idx
= i
*(cols
+1);
1890 int lattr
= (disptop
[idx
+cols
] & LATTR_MODE
);
1891 for (j
=0; j
<=cols
; j
++,idx
++) {
1892 unsigned long *d
= disptop
+idx
;
1893 wanttext
[idx
] = lattr
| (((*d
&~ ATTR_WRAPPED
) ^ rv
1894 ^ (selstart
<= d
&& d
< selend ?
1895 ATTR_REVERSE
: 0)) |
1896 (i
==our_curs_y
&& j
==curs_x ? cursor
: 0));
1897 if (blink_is_real
) {
1898 if (has_focus
&& tblinker
&& (wanttext
[idx
]&ATTR_BLINK
) )
1900 wanttext
[idx
] &= ATTR_MASK
;
1901 wanttext
[idx
] += ' ';
1903 wanttext
[idx
] &= ~ATTR_BLINK
;
1909 * We would perform scrolling optimisations in here, if they
1910 * didn't have a nasty tendency to cause the whole sodding
1911 * program to hang for a second at speed-critical moments.
1912 * We'll leave it well alone...
1915 for (i
=0; i
<rows
; i
++) {
1916 int idx
= i
*(cols
+1);
1917 int lattr
= (wanttext
[idx
+cols
] & LATTR_MODE
);
1919 for (j
=0; j
<=cols
; j
++,idx
++) {
1920 unsigned long t
= wanttext
[idx
];
1921 int needs_update
= (j
< cols
&& t
!= disptext
[idx
]);
1922 int keep_going
= (start
!= -1 && needs_update
&&
1923 (t
& ATTR_MASK
) == attr
&&
1924 j
-start
< sizeof(ch
));
1925 if (start
!= -1 && !keep_going
) {
1926 do_text (ctx
, start
, i
, ch
, j
-start
, attr
, lattr
);
1932 attr
= t
& ATTR_MASK
;
1934 ch
[j
-start
] = (char) (t
& CHAR_MASK
);
1942 * Flick the switch that says if blinking things should be shown or hidden.
1945 void term_blink(int flg
) {
1946 static long last_blink
= 0;
1947 static long last_tblink
= 0;
1948 long now
, blink_diff
;
1950 now
= GetTickCount();
1951 blink_diff
= now
-last_tblink
;
1953 /* Make sure the text blinks no more than 2Hz */
1954 if (blink_diff
<0 || blink_diff
>450)
1957 tblinker
= !tblinker
;
1966 blink_diff
= now
-last_blink
;
1968 /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */
1969 if (blink_diff
>=0 && blink_diff
<(long)GetCaretBlinkTime())
1977 * Invalidate the whole screen so it will be repainted in full.
1979 void term_invalidate(void) {
1982 for (i
=0; i
<rows
*(cols
+1); i
++)
1983 disptext
[i
] = ATTR_INVALID
;
1987 * Paint the window in response to a WM_PAINT message.
1989 void term_paint (Context ctx
, int l
, int t
, int r
, int b
) {
1990 int i
, j
, left
, top
, right
, bottom
;
1992 left
= l
/ font_width
;
1993 right
= (r
- 1) / font_width
;
1994 top
= t
/ font_height
;
1995 bottom
= (b
- 1) / font_height
;
1996 for (i
= top
; i
<= bottom
&& i
< rows
; i
++)
1998 if ( (disptext
[i
*(cols
+1)+cols
]&LATTR_MODE
) == LATTR_NORM
)
1999 for (j
= left
; j
<= right
&& j
< cols
; j
++)
2000 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2002 for (j
= left
/2; j
<= right
/2+1 && j
< cols
; j
++)
2003 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2006 /* This should happen soon enough, also for some reason it sometimes
2007 * fails to actually do anything when re-sizing ... painting the wrong
2009 do_paint (ctx, FALSE);
2014 * Attempt to scroll the scrollback. The second parameter gives the
2015 * position we want to scroll to; the first is +1 to denote that
2016 * this position is relative to the beginning of the scrollback, -1
2017 * to denote it is relative to the end, and 0 to denote that it is
2018 * relative to the current position.
2020 void term_scroll (int rel
, int where
) {
2021 int n
= where
* (cols
+1);
2023 disptop
= (rel
< 0 ? scrtop
:
2024 rel
> 0 ? sbtop
: disptop
) + n
;
2025 if (disptop
< sbtop
)
2027 if (disptop
> scrtop
)
2033 static void clipme(unsigned long *top
, unsigned long *bottom
, char *workbuf
) {
2034 char *wbptr
; /* where next char goes within workbuf */
2035 int wblen
= 0; /* workbuf len */
2036 int buflen
; /* amount of memory allocated to workbuf */
2038 if ( workbuf
!= NULL
) { /* user supplied buffer? */
2039 buflen
= -1; /* assume buffer passed in is big enough */
2040 wbptr
= workbuf
; /* start filling here */
2043 buflen
= 0; /* No data is available yet */
2045 while (top
< bottom
) {
2047 unsigned long *lineend
= top
- (top
-text
) % (cols
+1) + cols
;
2048 unsigned long *nlpos
= lineend
;
2050 if (!(*nlpos
& ATTR_WRAPPED
)) {
2051 while ((nlpos
[-1] & CHAR_MASK
) == 0x20 && nlpos
> top
)
2056 while (top
< nlpos
&& top
< bottom
)
2058 int ch
= (*top
& CHAR_MASK
);
2059 int set
= (*top
& CSET_MASK
);
2061 /* VT Specials -> ISO8859-1 for Cut&Paste */
2062 static const unsigned char poorman2
[] =
2063 "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 ";
2065 if (set
&& !cfg
.rawcnp
) {
2066 if (set
== ATTR_LINEDRW
&& ch
>= 0x60 && ch
< 0x7F) {
2068 if ((x
= poorman2
[2*(ch
-0x60)+1]) == ' ')
2070 ch
= (x
<<8) + poorman2
[2*(ch
-0x60)];
2075 if (cfg
.rawcnp
|| !!(ch
&0xE0)) {
2076 if ( wblen
== buflen
)
2078 workbuf
= srealloc(workbuf
, buflen
+= 100);
2079 wbptr
= workbuf
+ wblen
;
2082 *wbptr
++ = (unsigned char) ch
;
2090 for (i
=0; i
<sizeof(sel_nl
); i
++)
2092 if ( wblen
== buflen
)
2094 workbuf
= srealloc(workbuf
, buflen
+= 100);
2095 wbptr
= workbuf
+ wblen
;
2098 *wbptr
++ = sel_nl
[i
];
2101 top
= lineend
+ 1; /* start of next line */
2103 write_clip (workbuf
, wblen
, FALSE
); /* transfer to clipboard */
2104 if ( buflen
> 0 ) /* indicates we allocated this buffer */
2108 void term_copyall (void) {
2109 clipme(sbtop
, cpos
, NULL
/* dynamic allocation */);
2113 * Spread the selection outwards according to the selection mode.
2115 static unsigned long *sel_spread_half (unsigned long *p
, int dir
) {
2116 unsigned long *linestart
, *lineend
;
2120 x
= (p
- text
) % (cols
+1);
2122 lineend
= linestart
+ cols
;
2127 * In this mode, every character is a separate unit, except
2128 * for runs of spaces at the end of a non-wrapping line.
2130 if (!(linestart
[cols
] & ATTR_WRAPPED
)) {
2131 unsigned long *q
= lineend
;
2132 while (q
> linestart
&& (q
[-1] & CHAR_MASK
) == 0x20)
2137 p
= (dir
== -1 ? q
: lineend
- 1);
2142 * In this mode, the units are maximal runs of characters
2143 * whose `wordness' has the same value.
2145 wvalue
= wordness
[*p
& CHAR_MASK
];
2147 while (p
< lineend
&& wordness
[p
[1] & CHAR_MASK
] == wvalue
)
2150 while (p
> linestart
&& wordness
[p
[-1] & CHAR_MASK
] == wvalue
)
2156 * In this mode, every line is a unit.
2158 p
= (dir
== -1 ? linestart
: lineend
- 1);
2164 static void sel_spread (void) {
2165 selstart
= sel_spread_half (selstart
, -1);
2166 selend
= sel_spread_half (selend
- 1, +1) + 1;
2169 void term_mouse (Mouse_Button b
, Mouse_Action a
, int x
, int y
) {
2170 unsigned long *selpoint
;
2173 if (y
>=rows
) y
= rows
-1;
2181 if (x
>=cols
) x
= cols
-1;
2183 selpoint
= disptop
+ y
* (cols
+1);
2184 if ((selpoint
[cols
]&LATTR_MODE
) != LATTR_NORM
)
2189 if (b
== MB_SELECT
&& a
== MA_CLICK
) {
2191 selstate
= ABOUT_TO
;
2192 selanchor
= selpoint
;
2194 } else if (b
== MB_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
2196 selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
2197 selstate
= DRAGGING
;
2198 selstart
= selanchor
= selpoint
;
2199 selend
= selstart
+ 1;
2201 } else if ((b
== MB_SELECT
&& a
== MA_DRAG
) ||
2202 (b
== MB_EXTEND
&& a
!= MA_RELEASE
)) {
2203 if (selstate
== ABOUT_TO
&& selanchor
== selpoint
)
2205 if (b
== MB_EXTEND
&& a
!= MA_DRAG
&& selstate
== SELECTED
) {
2206 if (selpoint
-selstart
< (selend
-selstart
)/2)
2207 selanchor
= selend
- 1;
2209 selanchor
= selstart
;
2210 selstate
= DRAGGING
;
2212 if (selstate
!= ABOUT_TO
&& selstate
!= DRAGGING
)
2213 selanchor
= selpoint
;
2214 selstate
= DRAGGING
;
2215 if (selpoint
< selanchor
) {
2216 selstart
= selpoint
;
2217 selend
= selanchor
+ 1;
2219 selstart
= selanchor
;
2220 selend
= selpoint
+ 1;
2223 } else if ((b
== MB_SELECT
|| b
== MB_EXTEND
) && a
== MA_RELEASE
) {
2224 if (selstate
== DRAGGING
) {
2226 * We've completed a selection. We now transfer the
2227 * data to the clipboard.
2229 clipme(selstart
, selend
, selspace
);
2230 selstate
= SELECTED
;
2232 selstate
= NO_SELECTION
;
2233 } else if (b
== MB_PASTE
&& (a
==MA_CLICK
|| a
==MA_2CLK
|| a
==MA_3CLK
)) {
2237 get_clip((void **) &data
, &len
);
2241 if (paste_buffer
) sfree(paste_buffer
);
2242 paste_pos
= paste_hold
= paste_len
= 0;
2243 paste_buffer
= smalloc(len
);
2246 while (p
< data
+len
) {
2247 while (p
< data
+len
&&
2248 !(p
<= data
+len
-sizeof(sel_nl
) &&
2249 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
2257 c
=xlat_kbd2tty(q
[i
]);
2258 paste_buffer
[paste_len
++] = c
;
2262 if (p
<= data
+len
-sizeof(sel_nl
) &&
2263 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
2264 paste_buffer
[paste_len
++] = '\r';
2265 p
+= sizeof(sel_nl
);
2270 /* Assume a small paste will be OK in one go. */
2271 if (paste_len
<256) {
2272 ldisc_send (paste_buffer
, paste_len
);
2273 if (paste_buffer
) sfree(paste_buffer
);
2275 paste_pos
= paste_hold
= paste_len
= 0;
2278 get_clip(NULL
, NULL
);
2284 void term_nopaste() {
2285 if(paste_len
== 0) return;
2286 sfree(paste_buffer
);
2292 static long last_paste
= 0;
2293 long now
, paste_diff
;
2295 if(paste_len
== 0) return;
2297 /* Don't wait forever to paste */
2299 now
= GetTickCount();
2300 paste_diff
= now
-last_paste
;
2301 if (paste_diff
>=0 && paste_diff
<450)
2306 while(paste_pos
<paste_len
)
2309 while (n
+ paste_pos
< paste_len
) {
2310 if (paste_buffer
[paste_pos
+ n
++] == '\r')
2313 ldisc_send (paste_buffer
+paste_pos
, n
);
2316 if (paste_pos
< paste_len
) {
2321 sfree(paste_buffer
);
2326 static void deselect (void) {
2327 selstate
= NO_SELECTION
;
2328 selstart
= selend
= scrtop
;
2331 void term_deselect (void) {
2336 int term_ldisc(int option
) {
2337 if (option
== LD_ECHO
) return term_echoing
;
2338 if (option
== LD_EDIT
) return term_editing
;
2343 * from_backend(), to get data from the backend for the terminal.
2345 void from_backend(int is_stderr
, char *data
, int len
) {
2347 if (inbuf_head
>= INBUF_SIZE
)
2349 inbuf
[inbuf_head
++] = *data
++;
2354 * Log session traffic.
2356 void logtraffic(unsigned char c
, int logmode
) {
2357 if (cfg
.logtype
> 0) {
2358 if (cfg
.logtype
== logmode
) {
2359 /* deferred open file from pgm start? */
2360 if (!lgfp
) logfopen();
2361 if (lgfp
) fputc (c
, lgfp
);
2366 /* open log file append/overwrite mode */
2367 void logfopen(void) {
2375 sprintf (writemod
, "wb"); /* default to rewrite */
2376 lgfp
= fopen(cfg
.logfilename
, "r"); /* file already present? */
2380 i
= askappend(cfg
.logfilename
);
2382 writemod
[0] = 'a'; /* set append mode */
2383 else if (i
== 0) { /* cancelled */
2385 cfg
.logtype
= 0; /* disable logging */
2390 lgfp
= fopen(cfg
.logfilename
, writemod
);
2391 if (lgfp
) { /* enter into event log */
2392 sprintf(buf
, "%s session log (%s mode) to file : ",
2393 (writemod
[0] == 'a') ?
"Appending" : "Writing new",
2394 (cfg
.logtype
== LGTYP_ASCII ?
"ASCII" :
2395 cfg
.logtype
== LGTYP_DEBUG ?
"raw" : "<ukwn>") );
2396 /* Make sure we do not exceed the output buffer size */
2397 strncat (buf
, cfg
.logfilename
, 128);
2398 buf
[strlen(buf
)] = '\0';
2401 /* --- write header line iinto log file */
2402 fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp
);
2405 strftime(buf
, 24, "%Y.%m.%d %H:%M:%S", tm
);
2407 fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp
);
2411 void logfclose (void) {
2412 if (lgfp
) { fclose(lgfp
); lgfp
= NULL
; }