10 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
15 /* Product-order comparisons for rectangular block selection. */
16 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
19 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
24 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25 #define CL_VT100 0x0002 /* VT100 */
26 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27 #define CL_VT102 0x0008 /* VT102 */
28 #define CL_VT220 0x0010 /* VT220 */
29 #define CL_VT320 0x0020 /* VT320 */
30 #define CL_VT420 0x0040 /* VT420 */
31 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
37 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
38 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39 #define TM_VT102 (TM_VT100AVO|CL_VT102)
40 #define TM_VT220 (TM_VT102|CL_VT220)
41 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
44 #define TM_PUTTY (0xFFFF)
46 #define compatibility(x) \
47 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
48 term->termstate=TOPLEVEL; \
51 #define compatibility2(x,y) \
52 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
57 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
59 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
60 const wchar_t sel_nl
[] = SEL_NL
;
63 * Internal prototypes.
65 static void do_paint(Terminal
*, Context
, int);
66 static void erase_lots(Terminal
*, int, int, int);
67 static void swap_screen(Terminal
*, int, int, int);
68 static void update_sbar(Terminal
*);
69 static void deselect(Terminal
*);
70 static void term_print_finish(Terminal
*);
73 * Resize a line to make it `cols' columns wide.
75 unsigned long *resizeline(unsigned long *line
, int cols
)
78 unsigned long lineattrs
;
80 if (line
[0] != (unsigned long)cols
) {
82 * This line is the wrong length, which probably means it
83 * hasn't been accessed since a resize. Resize it now.
86 lineattrs
= line
[oldlen
+ 1];
87 line
= srealloc(line
, TSIZE
* (2 + cols
));
89 for (i
= oldlen
; i
< cols
; i
++)
90 line
[i
+ 1] = ERASE_CHAR
;
91 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
98 * Retrieve a line of the screen or of the scrollback, according to
99 * whether the y coordinate is non-negative or negative
102 unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
104 unsigned long *line
, *newline
;
109 whichtree
= term
->screen
;
112 whichtree
= term
->scrollback
;
113 treeindex
= y
+ count234(term
->scrollback
);
115 line
= index234(whichtree
, treeindex
);
117 /* We assume that we don't screw up and retrieve something out of range. */
118 assert(line
!= NULL
);
120 newline
= resizeline(line
, term
->cols
);
121 if (newline
!= line
) {
122 delpos234(whichtree
, treeindex
);
123 addpos234(whichtree
, newline
, treeindex
);
130 #define lineptr(x) lineptr(term,x,__LINE__)
133 * Set up power-on settings for the terminal.
135 static void power_on(Terminal
*term
)
137 term
->curs
.x
= term
->curs
.y
= 0;
138 term
->alt_x
= term
->alt_y
= 0;
139 term
->savecurs
.x
= term
->savecurs
.y
= 0;
140 term
->alt_t
= term
->marg_t
= 0;
141 if (term
->rows
!= -1)
142 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
144 term
->alt_b
= term
->marg_b
= 0;
145 if (term
->cols
!= -1) {
147 for (i
= 0; i
< term
->cols
; i
++)
148 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
150 term
->alt_om
= term
->dec_om
= cfg
.dec_om
;
151 term
->alt_ins
= term
->insert
= FALSE
;
152 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
153 term
->alt_wrap
= term
->wrap
= cfg
.wrap_mode
;
154 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
155 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
157 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
158 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
160 term
->in_vbell
= FALSE
;
162 term
->big_cursor
= 0;
163 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
164 term
->term_editing
= term
->term_echoing
= FALSE
;
165 term
->app_cursor_keys
= cfg
.app_cursor
;
166 term
->app_keypad_keys
= cfg
.app_keypad
;
167 term
->use_bce
= cfg
.bce
;
168 term
->blink_is_real
= cfg
.blinktext
;
169 term
->erase_char
= ERASE_CHAR
;
171 term_print_finish(term
);
174 for (i
= 0; i
< 256; i
++)
175 term
->wordness
[i
] = cfg
.wordness
[i
];
178 swap_screen(term
, 1, FALSE
, FALSE
);
179 erase_lots(term
, FALSE
, TRUE
, TRUE
);
180 swap_screen(term
, 0, FALSE
, FALSE
);
181 erase_lots(term
, FALSE
, TRUE
, TRUE
);
186 * Force a screen update.
188 void term_update(Terminal
*term
)
191 ctx
= get_ctx(term
->frontend
);
193 int need_sbar_update
= term
->seen_disp_event
;
194 if (term
->seen_disp_event
&& cfg
.scroll_on_disp
) {
195 term
->disptop
= 0; /* return to main screen */
196 term
->seen_disp_event
= 0;
197 need_sbar_update
= TRUE
;
199 if (need_sbar_update
)
201 do_paint(term
, ctx
, TRUE
);
202 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
208 * Called from front end when a keypress occurs, to trigger
209 * anything magical that needs to happen in that situation.
211 void term_seen_key_event(Terminal
*term
)
214 * On any keypress, clear the bell overload mechanism
215 * completely, on the grounds that large numbers of
216 * beeps coming from deliberate key action are likely
217 * to be intended (e.g. beeps from filename completion
218 * blocking repeatedly).
220 term
->beep_overloaded
= FALSE
;
221 while (term
->beephead
) {
222 struct beeptime
*tmp
= term
->beephead
;
223 term
->beephead
= tmp
->next
;
226 term
->beeptail
= NULL
;
230 * Reset the scrollback on keypress, if we're doing that.
232 if (cfg
.scroll_on_key
) {
233 term
->disptop
= 0; /* return to main screen */
234 term
->seen_disp_event
= 1;
239 * Same as power_on(), but an external function.
241 void term_pwron(Terminal
*term
)
244 if (term
->ldisc
) /* cause ldisc to notice changes */
245 ldisc_send(term
->ldisc
, NULL
, 0, 0);
253 * When the user reconfigures us, we need to check the forbidden-
254 * alternate-screen config option, disable raw mouse mode if the
255 * user has disabled mouse reporting, and abandon a print job if
256 * the user has disabled printing.
258 void term_reconfig(Terminal
*term
)
260 if (cfg
.no_alt_screen
)
261 swap_screen(term
, 0, FALSE
, FALSE
);
262 if (cfg
.no_mouse_rep
) {
263 term
->xterm_mouse
= 0;
264 set_raw_mouse_mode(term
->frontend
, 0);
266 if (cfg
.no_remote_charset
) {
267 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
268 term
->sco_acs
= term
->alt_sco_acs
= 0;
272 term_print_finish(term
);
277 * Clear the scrollback.
279 void term_clrsb(Terminal
*term
)
283 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
290 * Initialise the terminal.
292 Terminal
*term_init(void *frontend
)
297 * Allocate a new Terminal structure and initialise the fields
300 term
= smalloc(sizeof(Terminal
));
301 term
->frontend
= frontend
;
303 term
->compatibility_level
= TM_PUTTY
;
304 strcpy(term
->id_string
, "\033[?6c");
305 term
->last_blink
= term
->last_tblink
= 0;
306 term
->paste_buffer
= NULL
;
307 term
->last_paste
= 0;
308 bufchain_init(&term
->inbuf
);
309 bufchain_init(&term
->printer_buf
);
310 term
->printing
= term
->only_printing
= FALSE
;
311 term
->print_job
= NULL
;
312 term
->vt52_mode
= FALSE
;
313 term
->cr_lf_return
= FALSE
;
314 term
->seen_disp_event
= FALSE
;
315 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
316 term
->reset_132
= FALSE
;
317 term
->blinker
= term
->tblinker
= 0;
319 term
->repeat_off
= FALSE
;
320 term
->termstate
= TOPLEVEL
;
321 term
->selstate
= NO_SELECTION
;
324 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
326 term
->disptext
= term
->dispcurs
= NULL
;
329 term
->rows
= term
->cols
= -1;
331 term
->beephead
= term
->beeptail
= NULL
;
333 term
->lastbeep
= FALSE
;
334 term
->beep_overloaded
= FALSE
;
335 term
->resize_fn
= NULL
;
336 term
->resize_ctx
= NULL
;
342 * Set up the terminal for a given size.
344 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
347 unsigned long *newdisp
, *line
;
350 int save_alt_which
= term
->alt_which
;
352 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
353 newsavelines
== term
->savelines
)
354 return; /* nothing to do */
357 swap_screen(term
, 0, FALSE
, FALSE
);
359 term
->alt_t
= term
->marg_t
= 0;
360 term
->alt_b
= term
->marg_b
= newrows
- 1;
362 if (term
->rows
== -1) {
363 term
->scrollback
= newtree234(NULL
);
364 term
->screen
= newtree234(NULL
);
369 * Resize the screen and scrollback. We only need to shift
370 * lines around within our data structures, because lineptr()
371 * will take care of resizing each individual line if
374 * - If the new screen and the old screen differ in length, we
375 * must shunt some lines in from the scrollback or out to
378 * - If doing that fails to provide us with enough material to
379 * fill the new screen (i.e. the number of rows needed in
380 * the new screen exceeds the total number in the previous
381 * screen+scrollback), we must invent some blank lines to
384 * - Then, if the new scrollback length is less than the
385 * amount of scrollback we actually have, we must throw some
388 sblen
= count234(term
->scrollback
);
389 /* Do this loop to expand the screen if newrows > rows */
390 for (i
= term
->rows
; i
< newrows
; i
++) {
392 line
= delpos234(term
->scrollback
, --sblen
);
394 line
= smalloc(TSIZE
* (newcols
+ 2));
396 for (j
= 0; j
<= newcols
; j
++)
397 line
[j
+ 1] = ERASE_CHAR
;
399 addpos234(term
->screen
, line
, 0);
401 /* Do this loop to shrink the screen if newrows < rows */
402 for (i
= newrows
; i
< term
->rows
; i
++) {
403 line
= delpos234(term
->screen
, 0);
404 addpos234(term
->scrollback
, line
, sblen
++);
406 assert(count234(term
->screen
) == newrows
);
407 while (sblen
> newsavelines
) {
408 line
= delpos234(term
->scrollback
, 0);
412 assert(count234(term
->scrollback
) <= newsavelines
);
415 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
416 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
417 newdisp
[i
] = ATTR_INVALID
;
418 sfree(term
->disptext
);
419 term
->disptext
= newdisp
;
420 term
->dispcurs
= NULL
;
422 newalt
= newtree234(NULL
);
423 for (i
= 0; i
< newrows
; i
++) {
424 line
= smalloc(TSIZE
* (newcols
+ 2));
426 for (j
= 0; j
<= newcols
; j
++)
427 line
[j
+ 1] = term
->erase_char
;
428 addpos234(newalt
, line
, i
);
430 if (term
->alt_screen
) {
431 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
433 freetree234(term
->alt_screen
);
435 term
->alt_screen
= newalt
;
437 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
440 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
441 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
445 term
->curs
.y
+= newrows
- term
->rows
;
446 if (term
->curs
.y
< 0)
448 if (term
->curs
.y
>= newrows
)
449 term
->curs
.y
= newrows
- 1;
450 if (term
->curs
.x
>= newcols
)
451 term
->curs
.x
= newcols
- 1;
452 term
->alt_x
= term
->alt_y
= 0;
453 term
->wrapnext
= term
->alt_wnext
= FALSE
;
455 term
->rows
= newrows
;
456 term
->cols
= newcols
;
457 term
->savelines
= newsavelines
;
460 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
465 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
469 * Hand a function and context pointer to the terminal which it can
470 * use to notify a back end of resizes.
472 void term_provide_resize_fn(Terminal
*term
,
473 void (*resize_fn
)(void *, int, int),
476 term
->resize_fn
= resize_fn
;
477 term
->resize_ctx
= resize_ctx
;
478 if (term
->cols
> 0 && term
->rows
> 0)
479 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
483 * Swap screens. If `reset' is TRUE and we have been asked to
484 * switch to the alternate screen, we must bring most of its
485 * configuration from the main screen and erase the contents of the
486 * alternate screen completely. (This is even true if we're already
487 * on it! Blame xterm.)
489 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
495 reset
= FALSE
; /* do no weird resetting if which==0 */
497 if (which
!= term
->alt_which
) {
498 term
->alt_which
= which
;
500 ttr
= term
->alt_screen
;
501 term
->alt_screen
= term
->screen
;
504 if (!reset
&& !keep_cur_pos
)
505 term
->curs
.x
= term
->alt_x
;
508 if (!reset
&& !keep_cur_pos
)
509 term
->curs
.y
= term
->alt_y
;
512 if (!reset
) term
->marg_t
= term
->alt_t
;
515 if (!reset
) term
->marg_b
= term
->alt_b
;
518 if (!reset
) term
->dec_om
= term
->alt_om
;
521 if (!reset
) term
->wrap
= term
->alt_wrap
;
524 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
527 if (!reset
) term
->insert
= term
->alt_ins
;
530 if (!reset
) term
->cset
= term
->alt_cset
;
533 if (!reset
) term
->utf
= term
->alt_utf
;
536 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
537 term
->alt_sco_acs
= t
;
540 if (reset
&& term
->screen
) {
542 * Yes, this _is_ supposed to honour background-colour-erase.
544 erase_lots(term
, FALSE
, TRUE
, TRUE
);
548 * This might not be possible if we're called during
556 * Update the scroll bar.
558 static void update_sbar(Terminal
*term
)
562 nscroll
= count234(term
->scrollback
);
564 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
565 nscroll
+ term
->disptop
, term
->rows
);
569 * Check whether the region bounded by the two pointers intersects
570 * the scroll region, and de-select the on-screen selection if so.
572 static void check_selection(Terminal
*term
, pos from
, pos to
)
574 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
579 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
580 * for backward.) `sb' is TRUE if the scrolling is permitted to
581 * affect the scrollback buffer.
583 * NB this function invalidates all pointers into lines of the
584 * screen data structures. In particular, you MUST call fix_cpos
585 * after calling scroll() and before doing anything else that
586 * uses the cpos shortcut pointer.
588 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
590 unsigned long *line
, *line2
;
593 if (topline
!= 0 || term
->alt_which
!= 0)
598 line
= delpos234(term
->screen
, botline
);
599 line
= resizeline(line
, term
->cols
);
600 for (i
= 0; i
< term
->cols
; i
++)
601 line
[i
+ 1] = term
->erase_char
;
602 line
[term
->cols
+ 1] = 0;
603 addpos234(term
->screen
, line
, topline
);
605 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
607 if (term
->selstart
.y
> botline
) {
608 term
->selstart
.y
= botline
;
609 term
->selstart
.x
= 0;
612 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
614 if (term
->selend
.y
> botline
) {
615 term
->selend
.y
= botline
;
624 line
= delpos234(term
->screen
, topline
);
625 if (sb
&& term
->savelines
> 0) {
626 int sblen
= count234(term
->scrollback
);
628 * We must add this line to the scrollback. We'll
629 * remove a line from the top of the scrollback to
630 * replace it, or allocate a new one if the
631 * scrollback isn't full.
633 if (sblen
== term
->savelines
) {
634 sblen
--, line2
= delpos234(term
->scrollback
, 0);
636 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
637 line2
[0] = term
->cols
;
639 addpos234(term
->scrollback
, line
, sblen
);
643 * If the user is currently looking at part of the
644 * scrollback, and they haven't enabled any options
645 * that are going to reset the scrollback as a
646 * result of this movement, then the chances are
647 * they'd like to keep looking at the same line. So
648 * we move their viewpoint at the same rate as the
649 * scroll, at least until their viewpoint hits the
650 * top end of the scrollback buffer, at which point
651 * we don't have the choice any more.
653 * Thanks to Jan Holmen Holsten for the idea and
654 * initial implementation.
656 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
659 line
= resizeline(line
, term
->cols
);
660 for (i
= 0; i
< term
->cols
; i
++)
661 line
[i
+ 1] = term
->erase_char
;
662 line
[term
->cols
+ 1] = 0;
663 addpos234(term
->screen
, line
, botline
);
666 * If the selection endpoints move into the scrollback,
667 * we keep them moving until they hit the top. However,
668 * of course, if the line _hasn't_ moved into the
669 * scrollback then we don't do this, and cut them off
670 * at the top of the scroll region.
672 * This applies to selstart and selend (for an existing
673 * selection), and also selanchor (for one being
674 * selected as we speak).
676 seltop
= sb ?
-term
->savelines
: topline
;
678 if (term
->selstart
.y
>= seltop
&&
679 term
->selstart
.y
<= botline
) {
681 if (term
->selstart
.y
< seltop
) {
682 term
->selstart
.y
= seltop
;
683 term
->selstart
.x
= 0;
686 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
688 if (term
->selend
.y
< seltop
) {
689 term
->selend
.y
= seltop
;
693 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
695 if (term
->selanchor
.y
< seltop
) {
696 term
->selanchor
.y
= seltop
;
697 term
->selanchor
.x
= 0;
707 * Move the cursor to a given position, clipping at boundaries. We
708 * may or may not want to clip at the scroll margin: marg_clip is 0
709 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
710 * even _being_ outside the margins.
712 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
719 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
722 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
733 term
->wrapnext
= FALSE
;
737 * Save or restore the cursor and SGR mode.
739 static void save_cursor(Terminal
*term
, int save
)
742 term
->savecurs
= term
->curs
;
743 term
->save_attr
= term
->curr_attr
;
744 term
->save_cset
= term
->cset
;
745 term
->save_utf
= term
->utf
;
746 term
->save_wnext
= term
->wrapnext
;
747 term
->save_csattr
= term
->cset_attr
[term
->cset
];
748 term
->save_sco_acs
= term
->sco_acs
;
750 term
->curs
= term
->savecurs
;
751 /* Make sure the window hasn't shrunk since the save */
752 if (term
->curs
.x
>= term
->cols
)
753 term
->curs
.x
= term
->cols
- 1;
754 if (term
->curs
.y
>= term
->rows
)
755 term
->curs
.y
= term
->rows
- 1;
757 term
->curr_attr
= term
->save_attr
;
758 term
->cset
= term
->save_cset
;
759 term
->utf
= term
->save_utf
;
760 term
->wrapnext
= term
->save_wnext
;
762 * wrapnext might reset to False if the x position is no
763 * longer at the rightmost edge.
765 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
766 term
->wrapnext
= FALSE
;
767 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
768 term
->sco_acs
= term
->save_sco_acs
;
771 term
->erase_char
= (' ' | ATTR_ASCII
|
773 (ATTR_FGMASK
| ATTR_BGMASK
)));
778 * Erase a large portion of the screen: the whole screen, or the
779 * whole line, or parts thereof.
781 static void erase_lots(Terminal
*term
,
782 int line_only
, int from_begin
, int to_end
)
786 unsigned long *ldata
;
789 start
.y
= term
->curs
.y
;
791 end
.y
= term
->curs
.y
+ 1;
808 check_selection(term
, start
, end
);
810 /* Clear screen also forces a full window redraw, just in case. */
811 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
812 term_invalidate(term
);
814 ldata
= lineptr(start
.y
);
815 while (poslt(start
, end
)) {
816 if (start
.x
== term
->cols
&& !erase_lattr
)
817 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
819 ldata
[start
.x
] = term
->erase_char
;
820 if (incpos(start
) && start
.y
< term
->rows
)
821 ldata
= lineptr(start
.y
);
826 * Insert or delete characters within the current line. n is +ve if
827 * insertion is desired, and -ve for deletion.
829 static void insch(Terminal
*term
, int n
)
831 int dir
= (n
< 0 ?
-1 : +1);
834 unsigned long *ldata
;
836 n
= (n
< 0 ?
-n
: n
);
837 if (n
> term
->cols
- term
->curs
.x
)
838 n
= term
->cols
- term
->curs
.x
;
839 m
= term
->cols
- term
->curs
.x
- n
;
840 cursplus
.y
= term
->curs
.y
;
841 cursplus
.x
= term
->curs
.x
+ n
;
842 check_selection(term
, term
->curs
, cursplus
);
843 ldata
= lineptr(term
->curs
.y
);
845 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
847 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
849 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
851 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
856 * Toggle terminal mode `mode' to state `state'. (`query' indicates
857 * whether the mode is a DEC private one or a normal one.)
859 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
865 case 1: /* application cursor keys */
866 term
->app_cursor_keys
= state
;
868 case 2: /* VT52 mode */
869 term
->vt52_mode
= !state
;
870 if (term
->vt52_mode
) {
871 term
->blink_is_real
= FALSE
;
872 term
->vt52_bold
= FALSE
;
874 term
->blink_is_real
= cfg
.blinktext
;
877 case 3: /* 80/132 columns */
879 if (!cfg
.no_remote_resize
)
880 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
881 term
->reset_132
= state
;
883 case 5: /* reverse video */
885 * Toggle reverse video. If we receive an OFF within the
886 * visual bell timeout period after an ON, we trigger an
887 * effective visual bell, so that ESC[?5hESC[?5l will
888 * always be an actually _visible_ visual bell.
890 ticks
= GETTICKCOUNT();
891 /* turn off a previous vbell to avoid inconsistencies */
892 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
893 term
->in_vbell
= FALSE
;
894 if (term
->rvideo
&& !state
&& /* we're turning it off... */
895 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
896 /* If there's no vbell timeout already, or this one lasts
897 * longer, replace vbell_timeout with ours. */
898 if (!term
->in_vbell
||
899 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
901 term
->vbell_startpoint
= term
->rvbell_startpoint
;
902 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
903 } else if (!term
->rvideo
&& state
) {
904 /* This is an ON, so we notice the time and save it. */
905 term
->rvbell_startpoint
= ticks
;
907 term
->rvideo
= state
;
908 term
->seen_disp_event
= TRUE
;
912 case 6: /* DEC origin mode */
913 term
->dec_om
= state
;
915 case 7: /* auto wrap */
918 case 8: /* auto key repeat */
919 term
->repeat_off
= !state
;
921 case 10: /* set local edit mode */
922 term
->term_editing
= state
;
923 if (term
->ldisc
) /* cause ldisc to notice changes */
924 ldisc_send(term
->ldisc
, NULL
, 0, 0);
926 case 25: /* enable/disable cursor */
927 compatibility2(OTHER
, VT220
);
928 term
->cursor_on
= state
;
929 term
->seen_disp_event
= TRUE
;
931 case 47: /* alternate screen */
932 compatibility(OTHER
);
934 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
937 case 1000: /* xterm mouse 1 */
938 term
->xterm_mouse
= state ?
1 : 0;
939 set_raw_mouse_mode(term
->frontend
, state
);
941 case 1002: /* xterm mouse 2 */
942 term
->xterm_mouse
= state ?
2 : 0;
943 set_raw_mouse_mode(term
->frontend
, state
);
945 case 1047: /* alternate screen */
946 compatibility(OTHER
);
948 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
951 case 1048: /* save/restore cursor */
952 save_cursor(term
, state
);
953 if (!state
) term
->seen_disp_event
= TRUE
;
955 case 1049: /* cursor & alternate screen */
957 save_cursor(term
, state
);
958 if (!state
) term
->seen_disp_event
= TRUE
;
959 compatibility(OTHER
);
961 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
963 save_cursor(term
, state
);
968 case 4: /* set insert mode */
969 compatibility(VT102
);
970 term
->insert
= state
;
972 case 12: /* set echo mode */
973 term
->term_echoing
= !state
;
974 if (term
->ldisc
) /* cause ldisc to notice changes */
975 ldisc_send(term
->ldisc
, NULL
, 0, 0);
977 case 20: /* Return sends ... */
978 term
->cr_lf_return
= state
;
980 case 34: /* Make cursor BIG */
981 compatibility2(OTHER
, VT220
);
982 term
->big_cursor
= !state
;
987 * Process an OSC sequence: set window title or icon name.
989 static void do_osc(Terminal
*term
)
992 while (term
->osc_strlen
--)
993 term
->wordness
[(unsigned char)
994 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
996 term
->osc_string
[term
->osc_strlen
] = '\0';
997 switch (term
->esc_args
[0]) {
1000 if (!cfg
.no_remote_wintitle
)
1001 set_icon(term
->frontend
, term
->osc_string
);
1002 if (term
->esc_args
[0] == 1)
1004 /* fall through: parameter 0 means set both */
1007 if (!cfg
.no_remote_wintitle
)
1008 set_title(term
->frontend
, term
->osc_string
);
1015 * ANSI printing routines.
1017 static void term_print_setup(Terminal
*term
)
1019 bufchain_clear(&term
->printer_buf
);
1020 term
->print_job
= printer_start_job(cfg
.printer
);
1022 static void term_print_flush(Terminal
*term
)
1027 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1028 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1031 printer_job_data(term
->print_job
, data
, len
);
1032 bufchain_consume(&term
->printer_buf
, len
);
1035 static void term_print_finish(Terminal
*term
)
1041 if (!term
->printing
&& !term
->only_printing
)
1042 return; /* we need do nothing */
1044 term_print_flush(term
);
1045 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1046 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1048 if (c
== '\033' || c
== '\233') {
1049 bufchain_consume(&term
->printer_buf
, size
);
1052 printer_job_data(term
->print_job
, &c
, 1);
1053 bufchain_consume(&term
->printer_buf
, 1);
1056 printer_finish_job(term
->print_job
);
1057 term
->print_job
= NULL
;
1058 term
->printing
= term
->only_printing
= FALSE
;
1062 * Remove everything currently in `inbuf' and stick it up on the
1063 * in-memory display. There's a big state machine in here to
1064 * process escape sequences...
1066 void term_out(Terminal
*term
)
1069 unsigned char localbuf
[256], *chars
;
1074 chars
= NULL
; /* placate compiler warnings */
1075 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1079 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1080 if (nchars
> sizeof(localbuf
))
1081 nchars
= sizeof(localbuf
);
1082 memcpy(localbuf
, ret
, nchars
);
1083 bufchain_consume(&term
->inbuf
, nchars
);
1085 assert(chars
!= NULL
);
1091 * Optionally log the session traffic to a file. Useful for
1092 * debugging and possibly also useful for actual logging.
1094 if (cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1095 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1101 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1102 * be able to display 8-bit characters, but I'll let that go 'cause
1107 * If we're printing, add the character to the printer
1110 if (term
->printing
) {
1111 bufchain_add(&term
->printer_buf
, &c
, 1);
1114 * If we're in print-only mode, we use a much simpler
1115 * state machine designed only to recognise the ESC[4i
1116 * termination sequence.
1118 if (term
->only_printing
) {
1120 term
->print_state
= 1;
1121 else if (c
== (unsigned char)'\233')
1122 term
->print_state
= 2;
1123 else if (c
== '[' && term
->print_state
== 1)
1124 term
->print_state
= 2;
1125 else if (c
== '4' && term
->print_state
== 2)
1126 term
->print_state
= 3;
1127 else if (c
== 'i' && term
->print_state
== 3)
1128 term
->print_state
= 4;
1130 term
->print_state
= 0;
1131 if (term
->print_state
== 4) {
1132 term_print_finish(term
);
1138 /* First see about all those translations. */
1139 if (term
->termstate
== TOPLEVEL
) {
1141 switch (term
->utf_state
) {
1144 /* UTF-8 must be stateless so we ignore iso2022. */
1145 if (unitab_ctrl
[c
] != 0xFF)
1147 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1149 } else if ((c
& 0xe0) == 0xc0) {
1150 term
->utf_size
= term
->utf_state
= 1;
1151 term
->utf_char
= (c
& 0x1f);
1152 } else if ((c
& 0xf0) == 0xe0) {
1153 term
->utf_size
= term
->utf_state
= 2;
1154 term
->utf_char
= (c
& 0x0f);
1155 } else if ((c
& 0xf8) == 0xf0) {
1156 term
->utf_size
= term
->utf_state
= 3;
1157 term
->utf_char
= (c
& 0x07);
1158 } else if ((c
& 0xfc) == 0xf8) {
1159 term
->utf_size
= term
->utf_state
= 4;
1160 term
->utf_char
= (c
& 0x03);
1161 } else if ((c
& 0xfe) == 0xfc) {
1162 term
->utf_size
= term
->utf_state
= 5;
1163 term
->utf_char
= (c
& 0x01);
1174 if ((c
& 0xC0) != 0x80) {
1177 term
->utf_state
= 0;
1180 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1181 if (--term
->utf_state
)
1186 /* Is somebody trying to be evil! */
1188 (c
< 0x800 && term
->utf_size
>= 2) ||
1189 (c
< 0x10000 && term
->utf_size
>= 3) ||
1190 (c
< 0x200000 && term
->utf_size
>= 4) ||
1191 (c
< 0x4000000 && term
->utf_size
>= 5))
1194 /* Unicode line separator and paragraph separator are CR-LF */
1195 if (c
== 0x2028 || c
== 0x2029)
1198 /* High controls are probably a Baaad idea too. */
1202 /* The UTF-16 surrogates are not nice either. */
1203 /* The standard give the option of decoding these:
1204 * I don't want to! */
1205 if (c
>= 0xD800 && c
< 0xE000)
1208 /* ISO 10646 characters now limited to UTF-16 range. */
1212 /* This is currently a TagPhobic application.. */
1213 if (c
>= 0xE0000 && c
<= 0xE007F)
1216 /* U+FEFF is best seen as a null. */
1219 /* But U+FFFE is an error. */
1220 if (c
== 0xFFFE || c
== 0xFFFF)
1223 /* Oops this is a 16bit implementation */
1228 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1229 else if(term
->sco_acs
&&
1230 (c
!='\033' && c
!='\n' && c
!='\r' && c
!='\b'))
1232 if (term
->sco_acs
== 2) c
^= 0x80;
1235 switch (term
->cset_attr
[term
->cset
]) {
1237 * Linedraw characters are different from 'ESC ( B'
1238 * only for a small range. For ones outside that
1239 * range, make sure we use the same font as well as
1240 * the same encoding.
1243 if (unitab_ctrl
[c
] != 0xFF)
1246 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1250 /* If UK-ASCII, make the '#' a LineDraw Pound */
1252 c
= '}' | ATTR_LINEDRW
;
1255 /*FALLTHROUGH*/ case ATTR_ASCII
:
1256 if (unitab_ctrl
[c
] != 0xFF)
1259 c
= ((unsigned char) c
) | ATTR_ASCII
;
1262 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1268 /* How about C1 controls ? */
1269 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1270 !term
->vt52_mode
&& has_compat(VT220
)) {
1271 term
->termstate
= SEEN_ESC
;
1272 term
->esc_query
= FALSE
;
1273 c
= '@' + (c
& 0x1F);
1276 /* Or the GL control. */
1277 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1278 if (term
->curs
.x
&& !term
->wrapnext
)
1280 term
->wrapnext
= FALSE
;
1282 if (!cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1283 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1285 /* Or normal C0 controls. */
1286 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1288 case '\005': /* terminal type query */
1289 /* Strictly speaking this is VT100 but a VT100 defaults to
1290 * no response. Other terminals respond at their option.
1292 * Don't put a CR in the default string as this tends to
1293 * upset some weird software.
1295 * An xterm returns "xterm" (5 characters)
1297 compatibility(ANSIMIN
);
1299 char abuf
[256], *s
, *d
;
1301 for (s
= cfg
.answerback
, d
= abuf
; *s
; s
++) {
1303 if (*s
>= 'a' && *s
<= 'z')
1304 *d
++ = (*s
- ('a' - 1));
1305 else if ((*s
>= '@' && *s
<= '_') ||
1306 *s
== '?' || (*s
& 0x80))
1311 } else if (*s
== '^') {
1316 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1322 struct beeptime
*newbeep
;
1323 unsigned long ticks
;
1325 ticks
= GETTICKCOUNT();
1327 if (!term
->beep_overloaded
) {
1328 newbeep
= smalloc(sizeof(struct beeptime
));
1329 newbeep
->ticks
= ticks
;
1330 newbeep
->next
= NULL
;
1331 if (!term
->beephead
)
1332 term
->beephead
= newbeep
;
1334 term
->beeptail
->next
= newbeep
;
1335 term
->beeptail
= newbeep
;
1340 * Throw out any beeps that happened more than
1343 while (term
->beephead
&&
1344 term
->beephead
->ticks
< ticks
- cfg
.bellovl_t
) {
1345 struct beeptime
*tmp
= term
->beephead
;
1346 term
->beephead
= tmp
->next
;
1348 if (!term
->beephead
)
1349 term
->beeptail
= NULL
;
1353 if (cfg
.bellovl
&& term
->beep_overloaded
&&
1354 ticks
- term
->lastbeep
>= (unsigned)cfg
.bellovl_s
) {
1356 * If we're currently overloaded and the
1357 * last beep was more than s seconds ago,
1358 * leave overload mode.
1360 term
->beep_overloaded
= FALSE
;
1361 } else if (cfg
.bellovl
&& !term
->beep_overloaded
&&
1362 term
->nbeeps
>= cfg
.bellovl_n
) {
1364 * Now, if we have n or more beeps
1365 * remaining in the queue, go into overload
1368 term
->beep_overloaded
= TRUE
;
1370 term
->lastbeep
= ticks
;
1373 * Perform an actual beep if we're not overloaded.
1375 if (!cfg
.bellovl
|| !term
->beep_overloaded
) {
1376 beep(term
->frontend
, cfg
.beep
);
1377 if (cfg
.beep
== BELL_VISUAL
) {
1378 term
->in_vbell
= TRUE
;
1379 term
->vbell_startpoint
= ticks
;
1387 if (term
->curs
.x
== 0 &&
1388 (term
->curs
.y
== 0 || term
->wrap
== 0))
1390 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1391 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1392 else if (term
->wrapnext
)
1393 term
->wrapnext
= FALSE
;
1397 term
->seen_disp_event
= TRUE
;
1400 compatibility(VT100
);
1404 compatibility(VT100
);
1408 if (term
->vt52_mode
)
1409 term
->termstate
= VT52_ESC
;
1411 compatibility(ANSIMIN
);
1412 term
->termstate
= SEEN_ESC
;
1413 term
->esc_query
= FALSE
;
1418 term
->wrapnext
= FALSE
;
1420 term
->seen_disp_event
= TRUE
;
1421 term
->paste_hold
= 0;
1423 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1426 if (has_compat(SCOANSI
)) {
1427 move(term
, 0, 0, 0);
1428 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1430 term
->wrapnext
= FALSE
;
1431 term
->seen_disp_event
= 1;
1435 compatibility(VT100
);
1437 if (term
->curs
.y
== term
->marg_b
)
1438 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1439 else if (term
->curs
.y
< term
->rows
- 1)
1444 term
->wrapnext
= FALSE
;
1445 term
->seen_disp_event
= 1;
1446 term
->paste_hold
= 0;
1448 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1452 pos old_curs
= term
->curs
;
1453 unsigned long *ldata
= lineptr(term
->curs
.y
);
1457 } while (term
->curs
.x
< term
->cols
- 1 &&
1458 !term
->tabs
[term
->curs
.x
]);
1460 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1461 if (term
->curs
.x
>= term
->cols
/ 2)
1462 term
->curs
.x
= term
->cols
/ 2 - 1;
1464 if (term
->curs
.x
>= term
->cols
)
1465 term
->curs
.x
= term
->cols
- 1;
1469 check_selection(term
, old_curs
, term
->curs
);
1471 term
->seen_disp_event
= TRUE
;
1475 switch (term
->termstate
) {
1477 /* Only graphic characters get this far;
1478 * ctrls are stripped above */
1479 if (term
->wrapnext
&& term
->wrap
) {
1480 term
->cpos
[1] |= LATTR_WRAPPED
;
1481 if (term
->curs
.y
== term
->marg_b
)
1482 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1483 else if (term
->curs
.y
< term
->rows
- 1)
1487 term
->wrapnext
= FALSE
;
1491 if (term
->selstate
!= NO_SELECTION
) {
1492 pos cursplus
= term
->curs
;
1494 check_selection(term
, term
->curs
, cursplus
);
1496 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1498 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1500 extern int wcwidth(wchar_t ucs
);
1505 width
= wcwidth((wchar_t) c
);
1508 *term
->cpos
++ = c
| term
->curr_attr
;
1509 if (++term
->curs
.x
== term
->cols
) {
1510 *term
->cpos
|= LATTR_WRAPPED
;
1511 if (term
->curs
.y
== term
->marg_b
)
1512 scroll(term
, term
->marg_t
, term
->marg_b
,
1514 else if (term
->curs
.y
< term
->rows
- 1)
1519 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1522 *term
->cpos
++ = c
| term
->curr_attr
;
1529 if (term
->curs
.x
== term
->cols
) {
1532 term
->wrapnext
= TRUE
;
1533 if (term
->wrap
&& term
->vt52_mode
) {
1534 term
->cpos
[1] |= LATTR_WRAPPED
;
1535 if (term
->curs
.y
== term
->marg_b
)
1536 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1537 else if (term
->curs
.y
< term
->rows
- 1)
1541 term
->wrapnext
= FALSE
;
1544 term
->seen_disp_event
= 1;
1549 * This state is virtually identical to SEEN_ESC, with the
1550 * exception that we have an OSC sequence in the pipeline,
1551 * and _if_ we see a backslash, we process it.
1555 term
->termstate
= TOPLEVEL
;
1558 /* else fall through */
1560 if (c
>= ' ' && c
<= '/') {
1561 if (term
->esc_query
)
1562 term
->esc_query
= -1;
1564 term
->esc_query
= c
;
1567 term
->termstate
= TOPLEVEL
;
1568 switch (ANSI(c
, term
->esc_query
)) {
1569 case '[': /* enter CSI mode */
1570 term
->termstate
= SEEN_CSI
;
1571 term
->esc_nargs
= 1;
1572 term
->esc_args
[0] = ARG_DEFAULT
;
1573 term
->esc_query
= FALSE
;
1575 case ']': /* xterm escape sequences */
1576 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1577 compatibility(OTHER
);
1578 term
->termstate
= SEEN_OSC
;
1579 term
->esc_args
[0] = 0;
1581 case '7': /* save cursor */
1582 compatibility(VT100
);
1583 save_cursor(term
, TRUE
);
1585 case '8': /* restore cursor */
1586 compatibility(VT100
);
1587 save_cursor(term
, FALSE
);
1588 term
->seen_disp_event
= TRUE
;
1591 compatibility(VT100
);
1592 term
->app_keypad_keys
= TRUE
;
1595 compatibility(VT100
);
1596 term
->app_keypad_keys
= FALSE
;
1598 case 'D': /* exactly equivalent to LF */
1599 compatibility(VT100
);
1600 if (term
->curs
.y
== term
->marg_b
)
1601 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1602 else if (term
->curs
.y
< term
->rows
- 1)
1605 term
->wrapnext
= FALSE
;
1606 term
->seen_disp_event
= TRUE
;
1608 case 'E': /* exactly equivalent to CR-LF */
1609 compatibility(VT100
);
1611 if (term
->curs
.y
== term
->marg_b
)
1612 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1613 else if (term
->curs
.y
< term
->rows
- 1)
1616 term
->wrapnext
= FALSE
;
1617 term
->seen_disp_event
= TRUE
;
1619 case 'M': /* reverse index - backwards LF */
1620 compatibility(VT100
);
1621 if (term
->curs
.y
== term
->marg_t
)
1622 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1623 else if (term
->curs
.y
> 0)
1626 term
->wrapnext
= FALSE
;
1627 term
->seen_disp_event
= TRUE
;
1629 case 'Z': /* terminal type query */
1630 compatibility(VT100
);
1632 ldisc_send(term
->ldisc
, term
->id_string
,
1633 strlen(term
->id_string
), 0);
1635 case 'c': /* restore power-on settings */
1636 compatibility(VT100
);
1638 if (term
->ldisc
) /* cause ldisc to notice changes */
1639 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1640 if (term
->reset_132
) {
1641 if (!cfg
.no_remote_resize
)
1642 request_resize(term
->frontend
, 80, term
->rows
);
1643 term
->reset_132
= 0;
1647 term
->seen_disp_event
= TRUE
;
1649 case 'H': /* set a tab */
1650 compatibility(VT100
);
1651 term
->tabs
[term
->curs
.x
] = TRUE
;
1654 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1655 compatibility(VT100
);
1657 unsigned long *ldata
;
1661 for (i
= 0; i
< term
->rows
; i
++) {
1663 for (j
= 0; j
< term
->cols
; j
++)
1664 ldata
[j
] = ATTR_DEFAULT
| 'E';
1665 ldata
[term
->cols
] = 0;
1668 term
->seen_disp_event
= TRUE
;
1669 scrtop
.x
= scrtop
.y
= 0;
1671 scrbot
.y
= term
->rows
;
1672 check_selection(term
, scrtop
, scrbot
);
1676 case ANSI('3', '#'):
1677 case ANSI('4', '#'):
1678 case ANSI('5', '#'):
1679 case ANSI('6', '#'):
1680 compatibility(VT100
);
1682 unsigned long nlattr
;
1683 unsigned long *ldata
;
1684 switch (ANSI(c
, term
->esc_query
)) {
1685 case ANSI('3', '#'):
1688 case ANSI('4', '#'):
1691 case ANSI('5', '#'):
1692 nlattr
= LATTR_NORM
;
1694 default: /* spiritually case ANSI('6', '#'): */
1695 nlattr
= LATTR_WIDE
;
1698 ldata
= lineptr(term
->curs
.y
);
1699 ldata
[term
->cols
] &= ~LATTR_MODE
;
1700 ldata
[term
->cols
] |= nlattr
;
1704 case ANSI('A', '('):
1705 compatibility(VT100
);
1706 if (!cfg
.no_remote_charset
)
1707 term
->cset_attr
[0] = ATTR_GBCHR
;
1709 case ANSI('B', '('):
1710 compatibility(VT100
);
1711 if (!cfg
.no_remote_charset
)
1712 term
->cset_attr
[0] = ATTR_ASCII
;
1714 case ANSI('0', '('):
1715 compatibility(VT100
);
1716 if (!cfg
.no_remote_charset
)
1717 term
->cset_attr
[0] = ATTR_LINEDRW
;
1719 case ANSI('U', '('):
1720 compatibility(OTHER
);
1721 if (!cfg
.no_remote_charset
)
1722 term
->cset_attr
[0] = ATTR_SCOACS
;
1725 case ANSI('A', ')'):
1726 compatibility(VT100
);
1727 if (!cfg
.no_remote_charset
)
1728 term
->cset_attr
[1] = ATTR_GBCHR
;
1730 case ANSI('B', ')'):
1731 compatibility(VT100
);
1732 if (!cfg
.no_remote_charset
)
1733 term
->cset_attr
[1] = ATTR_ASCII
;
1735 case ANSI('0', ')'):
1736 compatibility(VT100
);
1737 if (!cfg
.no_remote_charset
)
1738 term
->cset_attr
[1] = ATTR_LINEDRW
;
1740 case ANSI('U', ')'):
1741 compatibility(OTHER
);
1742 if (!cfg
.no_remote_charset
)
1743 term
->cset_attr
[1] = ATTR_SCOACS
;
1746 case ANSI('8', '%'): /* Old Linux code */
1747 case ANSI('G', '%'):
1748 compatibility(OTHER
);
1749 if (!cfg
.no_remote_charset
)
1752 case ANSI('@', '%'):
1753 compatibility(OTHER
);
1754 if (!cfg
.no_remote_charset
)
1760 term
->termstate
= TOPLEVEL
; /* default */
1762 if (term
->esc_nargs
<= ARGS_MAX
) {
1763 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1764 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1765 term
->esc_args
[term
->esc_nargs
- 1] =
1766 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1768 term
->termstate
= SEEN_CSI
;
1769 } else if (c
== ';') {
1770 if (++term
->esc_nargs
<= ARGS_MAX
)
1771 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1772 term
->termstate
= SEEN_CSI
;
1773 } else if (c
< '@') {
1774 if (term
->esc_query
)
1775 term
->esc_query
= -1;
1777 term
->esc_query
= TRUE
;
1779 term
->esc_query
= c
;
1780 term
->termstate
= SEEN_CSI
;
1782 switch (ANSI(c
, term
->esc_query
)) {
1783 case 'A': /* move up N lines */
1784 move(term
, term
->curs
.x
,
1785 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1786 term
->seen_disp_event
= TRUE
;
1788 case 'e': /* move down N lines */
1789 compatibility(ANSI
);
1792 move(term
, term
->curs
.x
,
1793 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1794 term
->seen_disp_event
= TRUE
;
1796 case ANSI('c', '>'): /* report xterm version */
1797 compatibility(OTHER
);
1798 /* this reports xterm version 136 so that VIM can
1799 use the drag messages from the mouse reporting */
1801 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1803 case 'a': /* move right N cols */
1804 compatibility(ANSI
);
1807 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1809 term
->seen_disp_event
= TRUE
;
1811 case 'D': /* move left N cols */
1812 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1814 term
->seen_disp_event
= TRUE
;
1816 case 'E': /* move down N lines and CR */
1817 compatibility(ANSI
);
1819 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1820 term
->seen_disp_event
= TRUE
;
1822 case 'F': /* move up N lines and CR */
1823 compatibility(ANSI
);
1825 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1826 term
->seen_disp_event
= TRUE
;
1829 case '`': /* set horizontal posn */
1830 compatibility(ANSI
);
1831 move(term
, def(term
->esc_args
[0], 1) - 1,
1833 term
->seen_disp_event
= TRUE
;
1835 case 'd': /* set vertical posn */
1836 compatibility(ANSI
);
1837 move(term
, term
->curs
.x
,
1838 ((term
->dec_om ? term
->marg_t
: 0) +
1839 def(term
->esc_args
[0], 1) - 1),
1840 (term
->dec_om ?
2 : 0));
1841 term
->seen_disp_event
= TRUE
;
1844 case 'f': /* set horz and vert posns at once */
1845 if (term
->esc_nargs
< 2)
1846 term
->esc_args
[1] = ARG_DEFAULT
;
1847 move(term
, def(term
->esc_args
[1], 1) - 1,
1848 ((term
->dec_om ? term
->marg_t
: 0) +
1849 def(term
->esc_args
[0], 1) - 1),
1850 (term
->dec_om ?
2 : 0));
1851 term
->seen_disp_event
= TRUE
;
1853 case 'J': /* erase screen or parts of it */
1855 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1858 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1861 term
->seen_disp_event
= TRUE
;
1863 case 'K': /* erase line or parts of it */
1865 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1868 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1870 term
->seen_disp_event
= TRUE
;
1872 case 'L': /* insert lines */
1873 compatibility(VT102
);
1874 if (term
->curs
.y
<= term
->marg_b
)
1875 scroll(term
, term
->curs
.y
, term
->marg_b
,
1876 -def(term
->esc_args
[0], 1), FALSE
);
1878 term
->seen_disp_event
= TRUE
;
1880 case 'M': /* delete lines */
1881 compatibility(VT102
);
1882 if (term
->curs
.y
<= term
->marg_b
)
1883 scroll(term
, term
->curs
.y
, term
->marg_b
,
1884 def(term
->esc_args
[0], 1),
1887 term
->seen_disp_event
= TRUE
;
1889 case '@': /* insert chars */
1890 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1891 compatibility(VT102
);
1892 insch(term
, def(term
->esc_args
[0], 1));
1893 term
->seen_disp_event
= TRUE
;
1895 case 'P': /* delete chars */
1896 compatibility(VT102
);
1897 insch(term
, -def(term
->esc_args
[0], 1));
1898 term
->seen_disp_event
= TRUE
;
1900 case 'c': /* terminal type query */
1901 compatibility(VT100
);
1902 /* This is the response for a VT102 */
1904 ldisc_send(term
->ldisc
, term
->id_string
,
1905 strlen(term
->id_string
), 0);
1907 case 'n': /* cursor position query */
1909 if (term
->esc_args
[0] == 6) {
1911 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1913 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1914 } else if (term
->esc_args
[0] == 5) {
1915 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1919 case 'h': /* toggle modes to high */
1921 compatibility(VT100
);
1924 for (i
= 0; i
< term
->esc_nargs
; i
++)
1925 toggle_mode(term
, term
->esc_args
[i
],
1926 term
->esc_query
, TRUE
);
1931 compatibility(VT100
);
1933 if (term
->esc_nargs
!= 1) break;
1934 if (term
->esc_args
[0] == 5 && *cfg
.printer
) {
1935 term
->printing
= TRUE
;
1936 term
->only_printing
= !term
->esc_query
;
1937 term
->print_state
= 0;
1938 term_print_setup(term
);
1939 } else if (term
->esc_args
[0] == 4 &&
1941 term_print_finish(term
);
1945 case 'l': /* toggle modes to low */
1947 compatibility(VT100
);
1950 for (i
= 0; i
< term
->esc_nargs
; i
++)
1951 toggle_mode(term
, term
->esc_args
[i
],
1952 term
->esc_query
, FALSE
);
1955 case 'g': /* clear tabs */
1956 compatibility(VT100
);
1957 if (term
->esc_nargs
== 1) {
1958 if (term
->esc_args
[0] == 0) {
1959 term
->tabs
[term
->curs
.x
] = FALSE
;
1960 } else if (term
->esc_args
[0] == 3) {
1962 for (i
= 0; i
< term
->cols
; i
++)
1963 term
->tabs
[i
] = FALSE
;
1967 case 'r': /* set scroll margins */
1968 compatibility(VT100
);
1969 if (term
->esc_nargs
<= 2) {
1971 top
= def(term
->esc_args
[0], 1) - 1;
1972 bot
= (term
->esc_nargs
<= 1
1973 || term
->esc_args
[1] == 0 ?
1975 def(term
->esc_args
[1], term
->rows
)) - 1;
1976 if (bot
>= term
->rows
)
1977 bot
= term
->rows
- 1;
1978 /* VTTEST Bug 9 - if region is less than 2 lines
1979 * don't change region.
1981 if (bot
- top
> 0) {
1986 * I used to think the cursor should be
1987 * placed at the top of the newly marginned
1988 * area. Apparently not: VMS TPU falls over
1991 * Well actually it should for
1994 term
->curs
.y
= (term
->dec_om ?
1997 term
->seen_disp_event
= TRUE
;
2001 case 'm': /* set graphics rendition */
2004 * A VT100 without the AVO only had one
2005 * attribute, either underline or
2006 * reverse video depending on the
2007 * cursor type, this was selected by
2011 * This is sometimes DIM, eg on the
2014 * This is sometimes INVIS various ANSI.
2016 * This like 22 disables BOLD, DIM and INVIS
2018 * The ANSI colours appear on any
2019 * terminal that has colour (obviously)
2020 * but the interaction between sgr0 and
2021 * the colours varies but is usually
2022 * related to the background colour
2023 * erase item. The interaction between
2024 * colour attributes and the mono ones
2025 * is also very implementation
2028 * The 39 and 49 attributes are likely
2029 * to be unimplemented.
2032 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2033 switch (def(term
->esc_args
[i
], 0)) {
2034 case 0: /* restore defaults */
2035 term
->curr_attr
= ATTR_DEFAULT
;
2037 case 1: /* enable bold */
2038 compatibility(VT100AVO
);
2039 term
->curr_attr
|= ATTR_BOLD
;
2041 case 21: /* (enable double underline) */
2042 compatibility(OTHER
);
2043 case 4: /* enable underline */
2044 compatibility(VT100AVO
);
2045 term
->curr_attr
|= ATTR_UNDER
;
2047 case 5: /* enable blink */
2048 compatibility(VT100AVO
);
2049 term
->curr_attr
|= ATTR_BLINK
;
2051 case 7: /* enable reverse video */
2052 term
->curr_attr
|= ATTR_REVERSE
;
2054 case 10: /* SCO acs off */
2055 compatibility(SCOANSI
);
2056 if (cfg
.no_remote_charset
) break;
2057 term
->sco_acs
= 0; break;
2058 case 11: /* SCO acs on */
2059 compatibility(SCOANSI
);
2060 if (cfg
.no_remote_charset
) break;
2061 term
->sco_acs
= 1; break;
2062 case 12: /* SCO acs on flipped */
2063 compatibility(SCOANSI
);
2064 if (cfg
.no_remote_charset
) break;
2065 term
->sco_acs
= 2; break;
2066 case 22: /* disable bold */
2067 compatibility2(OTHER
, VT220
);
2068 term
->curr_attr
&= ~ATTR_BOLD
;
2070 case 24: /* disable underline */
2071 compatibility2(OTHER
, VT220
);
2072 term
->curr_attr
&= ~ATTR_UNDER
;
2074 case 25: /* disable blink */
2075 compatibility2(OTHER
, VT220
);
2076 term
->curr_attr
&= ~ATTR_BLINK
;
2078 case 27: /* disable reverse video */
2079 compatibility2(OTHER
, VT220
);
2080 term
->curr_attr
&= ~ATTR_REVERSE
;
2091 term
->curr_attr
&= ~ATTR_FGMASK
;
2093 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2095 case 39: /* default-foreground */
2096 term
->curr_attr
&= ~ATTR_FGMASK
;
2097 term
->curr_attr
|= ATTR_DEFFG
;
2108 term
->curr_attr
&= ~ATTR_BGMASK
;
2110 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2112 case 49: /* default-background */
2113 term
->curr_attr
&= ~ATTR_BGMASK
;
2114 term
->curr_attr
|= ATTR_DEFBG
;
2119 term
->erase_char
= (' ' | ATTR_ASCII
|
2125 case 's': /* save cursor */
2126 save_cursor(term
, TRUE
);
2128 case 'u': /* restore cursor */
2129 save_cursor(term
, FALSE
);
2130 term
->seen_disp_event
= TRUE
;
2132 case 't': /* set page size - ie window height */
2134 * VT340/VT420 sequence DECSLPP, DEC only allows values
2135 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2136 * illegal values (eg first arg 1..9) for window changing
2139 if (term
->esc_nargs
<= 1
2140 && (term
->esc_args
[0] < 1 ||
2141 term
->esc_args
[0] >= 24)) {
2142 compatibility(VT340TEXT
);
2143 if (!cfg
.no_remote_resize
)
2144 request_resize(term
->frontend
, term
->cols
,
2145 def(term
->esc_args
[0], 24));
2147 } else if (term
->esc_nargs
>= 1 &&
2148 term
->esc_args
[0] >= 1 &&
2149 term
->esc_args
[0] < 24) {
2150 compatibility(OTHER
);
2152 switch (term
->esc_args
[0]) {
2156 set_iconic(term
->frontend
, FALSE
);
2159 set_iconic(term
->frontend
, TRUE
);
2162 if (term
->esc_nargs
>= 3) {
2163 if (!cfg
.no_remote_resize
)
2164 move_window(term
->frontend
,
2165 def(term
->esc_args
[1], 0),
2166 def(term
->esc_args
[2], 0));
2170 /* We should resize the window to a given
2171 * size in pixels here, but currently our
2172 * resizing code isn't healthy enough to
2177 set_zorder(term
->frontend
, TRUE
);
2180 /* move to bottom */
2181 set_zorder(term
->frontend
, FALSE
);
2184 refresh_window(term
->frontend
);
2187 if (term
->esc_nargs
>= 3) {
2188 if (!cfg
.no_remote_resize
)
2189 request_resize(term
->frontend
,
2190 def(term
->esc_args
[2], cfg
.width
),
2191 def(term
->esc_args
[1], cfg
.height
));
2195 if (term
->esc_nargs
>= 2)
2196 set_zoomed(term
->frontend
,
2202 ldisc_send(term
->ldisc
,
2203 is_iconic(term
->frontend
) ?
2204 "\033[1t" : "\033[2t", 4, 0);
2208 get_window_pos(term
->frontend
, &x
, &y
);
2209 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2210 ldisc_send(term
->ldisc
, buf
, len
, 0);
2215 get_window_pixels(term
->frontend
, &x
, &y
);
2216 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2217 ldisc_send(term
->ldisc
, buf
, len
, 0);
2222 len
= sprintf(buf
, "\033[8;%d;%dt",
2223 term
->rows
, term
->cols
);
2224 ldisc_send(term
->ldisc
, buf
, len
, 0);
2229 * Hmmm. Strictly speaking we
2230 * should return `the size of the
2231 * screen in characters', but
2232 * that's not easy: (a) window
2233 * furniture being what it is it's
2234 * hard to compute, and (b) in
2235 * resize-font mode maximising the
2236 * window wouldn't change the
2237 * number of characters. *shrug*. I
2238 * think we'll ignore it for the
2239 * moment and see if anyone
2240 * complains, and then ask them
2241 * what they would like it to do.
2246 p
= get_window_title(term
->frontend
, TRUE
);
2248 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2249 ldisc_send(term
->ldisc
, p
, len
, 0);
2250 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2255 p
= get_window_title(term
->frontend
,FALSE
);
2257 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2258 ldisc_send(term
->ldisc
, p
, len
, 0);
2259 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2266 compatibility(SCOANSI
);
2267 scroll(term
, term
->marg_t
, term
->marg_b
,
2268 def(term
->esc_args
[0], 1), TRUE
);
2270 term
->wrapnext
= FALSE
;
2271 term
->seen_disp_event
= TRUE
;
2274 compatibility(SCOANSI
);
2275 scroll(term
, term
->marg_t
, term
->marg_b
,
2276 -def(term
->esc_args
[0], 1), TRUE
);
2278 term
->wrapnext
= FALSE
;
2279 term
->seen_disp_event
= TRUE
;
2281 case ANSI('|', '*'):
2282 /* VT420 sequence DECSNLS
2283 * Set number of lines on screen
2284 * VT420 uses VGA like hardware and can support any size in
2285 * reasonable range (24..49 AIUI) with no default specified.
2287 compatibility(VT420
);
2288 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2289 if (!cfg
.no_remote_resize
)
2290 request_resize(term
->frontend
, term
->cols
,
2291 def(term
->esc_args
[0],
2296 case ANSI('|', '$'):
2297 /* VT340/VT420 sequence DECSCPP
2298 * Set number of columns per page
2299 * Docs imply range is only 80 or 132, but I'll allow any.
2301 compatibility(VT340TEXT
);
2302 if (term
->esc_nargs
<= 1) {
2303 if (!cfg
.no_remote_resize
)
2304 request_resize(term
->frontend
,
2305 def(term
->esc_args
[0],
2306 cfg
.width
), term
->rows
);
2310 case 'X': /* write N spaces w/o moving cursor */
2311 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2312 compatibility(ANSIMIN
);
2314 int n
= def(term
->esc_args
[0], 1);
2316 unsigned long *p
= term
->cpos
;
2317 if (n
> term
->cols
- term
->curs
.x
)
2318 n
= term
->cols
- term
->curs
.x
;
2319 cursplus
= term
->curs
;
2321 check_selection(term
, term
->curs
, cursplus
);
2323 *p
++ = term
->erase_char
;
2324 term
->seen_disp_event
= TRUE
;
2327 case 'x': /* report terminal characteristics */
2328 compatibility(VT100
);
2331 int i
= def(term
->esc_args
[0], 0);
2332 if (i
== 0 || i
== 1) {
2333 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2335 ldisc_send(term
->ldisc
, buf
, 20, 0);
2339 case 'Z': /* BackTab for xterm */
2340 compatibility(OTHER
);
2342 int i
= def(term
->esc_args
[0], 1);
2343 pos old_curs
= term
->curs
;
2345 for(;i
>0 && term
->curs
.x
>0; i
--) {
2348 } while (term
->curs
.x
>0 &&
2349 !term
->tabs
[term
->curs
.x
]);
2352 check_selection(term
, old_curs
, term
->curs
);
2355 case ANSI('L', '='):
2356 compatibility(OTHER
);
2357 term
->use_bce
= (term
->esc_args
[0] <= 0);
2358 term
->erase_char
= ERASE_CHAR
;
2360 term
->erase_char
= (' ' | ATTR_ASCII
|
2362 (ATTR_FGMASK
| ATTR_BGMASK
)));
2364 case ANSI('E', '='):
2365 compatibility(OTHER
);
2366 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2368 case ANSI('p', '"'):
2370 * Allow the host to make this emulator a
2371 * 'perfect' VT102. This first appeared in
2372 * the VT220, but we do need to get back to
2373 * PuTTY mode so I won't check it.
2375 * The arg in 40..42,50 are a PuTTY extension.
2376 * The 2nd arg, 8bit vs 7bit is not checked.
2378 * Setting VT102 mode should also change
2379 * the Fkeys to generate PF* codes as a
2380 * real VT102 has no Fkeys. The VT220 does
2381 * this, F11..F13 become ESC,BS,LF other
2382 * Fkeys send nothing.
2384 * Note ESC c will NOT change this!
2387 switch (term
->esc_args
[0]) {
2389 term
->compatibility_level
&= ~TM_VTXXX
;
2390 term
->compatibility_level
|= TM_VT102
;
2393 term
->compatibility_level
&= ~TM_VTXXX
;
2394 term
->compatibility_level
|= TM_VT220
;
2398 if (term
->esc_args
[0] > 60 &&
2399 term
->esc_args
[0] < 70)
2400 term
->compatibility_level
|= TM_VTXXX
;
2404 term
->compatibility_level
&= TM_VTXXX
;
2407 term
->compatibility_level
= TM_PUTTY
;
2410 term
->compatibility_level
= TM_SCOANSI
;
2414 term
->compatibility_level
= TM_PUTTY
;
2420 /* Change the response to CSI c */
2421 if (term
->esc_args
[0] == 50) {
2424 strcpy(term
->id_string
, "\033[?");
2425 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2427 strcat(term
->id_string
, ";");
2428 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2429 strcat(term
->id_string
, lbuf
);
2431 strcat(term
->id_string
, "c");
2434 /* Is this a good idea ?
2435 * Well we should do a soft reset at this point ...
2437 if (!has_compat(VT420
) && has_compat(VT100
)) {
2438 if (!cfg
.no_remote_resize
) {
2439 if (term
->reset_132
)
2440 request_resize(132, 24);
2442 request_resize(80, 24);
2450 term
->osc_w
= FALSE
;
2452 case 'P': /* Linux palette sequence */
2453 term
->termstate
= SEEN_OSC_P
;
2454 term
->osc_strlen
= 0;
2456 case 'R': /* Linux palette reset */
2457 palette_reset(term
->frontend
);
2458 term_invalidate(term
);
2459 term
->termstate
= TOPLEVEL
;
2461 case 'W': /* word-set */
2462 term
->termstate
= SEEN_OSC_W
;
2475 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2479 * Grotty hack to support xterm and DECterm title
2480 * sequences concurrently.
2482 if (term
->esc_args
[0] == 2) {
2483 term
->esc_args
[0] = 1;
2486 /* else fall through */
2488 term
->termstate
= OSC_STRING
;
2489 term
->osc_strlen
= 0;
2494 * This OSC stuff is EVIL. It takes just one character to get into
2495 * sysline mode and it's not initially obvious how to get out.
2496 * So I've added CR and LF as string aborts.
2497 * This shouldn't effect compatibility as I believe embedded
2498 * control characters are supposed to be interpreted (maybe?)
2499 * and they don't display anything useful anyway.
2503 if (c
== '\n' || c
== '\r') {
2504 term
->termstate
= TOPLEVEL
;
2505 } else if (c
== 0234 || c
== '\007') {
2507 * These characters terminate the string; ST and BEL
2508 * terminate the sequence and trigger instant
2509 * processing of it, whereas ESC goes back to SEEN_ESC
2510 * mode unless it is followed by \, in which case it is
2511 * synonymous with ST in the first place.
2514 term
->termstate
= TOPLEVEL
;
2515 } else if (c
== '\033')
2516 term
->termstate
= OSC_MAYBE_ST
;
2517 else if (term
->osc_strlen
< OSC_STR_MAX
)
2518 term
->osc_string
[term
->osc_strlen
++] = c
;
2522 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2524 if (c
>= '0' && c
<= '9')
2526 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2528 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2531 term
->termstate
= TOPLEVEL
;
2534 term
->osc_string
[term
->osc_strlen
++] = val
;
2535 if (term
->osc_strlen
>= 7) {
2536 palette_set(term
->frontend
, term
->osc_string
[0],
2537 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2538 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2539 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2540 term_invalidate(term
);
2541 term
->termstate
= TOPLEVEL
;
2557 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2560 term
->termstate
= OSC_STRING
;
2561 term
->osc_strlen
= 0;
2565 term
->termstate
= TOPLEVEL
;
2566 term
->seen_disp_event
= TRUE
;
2569 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2572 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2575 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2578 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2581 * From the VT100 Manual
2582 * NOTE: The special graphics characters in the VT100
2583 * are different from those in the VT52
2585 * From VT102 manual:
2586 * 137 _ Blank - Same
2587 * 140 ` Reserved - Humm.
2588 * 141 a Solid rectangle - Similar
2589 * 142 b 1/ - Top half of fraction for the
2590 * 143 c 3/ - subscript numbers below.
2593 * 146 f Degrees - Same
2594 * 147 g Plus or minus - Same
2596 * 151 i Ellipsis (dots)
2599 * 154 l Bar at scan 0
2600 * 155 m Bar at scan 1
2601 * 156 n Bar at scan 2
2602 * 157 o Bar at scan 3 - Similar
2603 * 160 p Bar at scan 4 - Similar
2604 * 161 q Bar at scan 5 - Similar
2605 * 162 r Bar at scan 6 - Same
2606 * 163 s Bar at scan 7 - Similar
2621 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2624 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2627 move(term
, 0, 0, 0);
2630 if (term
->curs
.y
== 0)
2631 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2632 else if (term
->curs
.y
> 0)
2635 term
->wrapnext
= FALSE
;
2638 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2642 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2646 /* XXX Print cursor line */
2649 /* XXX Start controller mode */
2652 /* XXX Stop controller mode */
2656 term
->termstate
= VT52_Y1
;
2660 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2663 term
->app_keypad_keys
= TRUE
;
2666 term
->app_keypad_keys
= FALSE
;
2669 /* XXX This should switch to VT100 mode not current or default
2670 * VT mode. But this will only have effect in a VT220+
2673 term
->vt52_mode
= FALSE
;
2674 term
->blink_is_real
= cfg
.blinktext
;
2678 /* XXX Enter auto print mode */
2681 /* XXX Exit auto print mode */
2684 /* XXX Print screen */
2690 /* compatibility(ATARI) */
2691 move(term
, 0, 0, 0);
2692 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2696 /* compatibility(ATARI) */
2697 if (term
->curs
.y
<= term
->marg_b
)
2698 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2701 /* compatibility(ATARI) */
2702 if (term
->curs
.y
<= term
->marg_b
)
2703 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2706 /* compatibility(ATARI) */
2707 term
->termstate
= VT52_FG
;
2710 /* compatibility(ATARI) */
2711 term
->termstate
= VT52_BG
;
2714 /* compatibility(ATARI) */
2715 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2719 /* compatibility(ATARI) */
2720 term
->cursor_on
= TRUE
;
2723 /* compatibility(ATARI) */
2724 term
->cursor_on
= FALSE
;
2726 /* case 'j': Save cursor position - broken on ST */
2727 /* case 'k': Restore cursor position */
2729 /* compatibility(ATARI) */
2730 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2732 term
->wrapnext
= FALSE
;
2736 /* compatibility(ATARI) */
2737 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2740 /* compatibility(ATARI) */
2741 term
->curr_attr
|= ATTR_REVERSE
;
2744 /* compatibility(ATARI) */
2745 term
->curr_attr
&= ~ATTR_REVERSE
;
2747 case 'v': /* wrap Autowrap on - Wyse style */
2748 /* compatibility(ATARI) */
2751 case 'w': /* Autowrap off */
2752 /* compatibility(ATARI) */
2757 /* compatibility(OTHER) */
2758 term
->vt52_bold
= FALSE
;
2759 term
->curr_attr
= ATTR_DEFAULT
;
2761 term
->erase_char
= (' ' | ATTR_ASCII
|
2763 (ATTR_FGMASK
| ATTR_BGMASK
)));
2766 /* compatibility(VI50) */
2767 term
->curr_attr
|= ATTR_UNDER
;
2770 /* compatibility(VI50) */
2771 term
->curr_attr
&= ~ATTR_UNDER
;
2774 /* compatibility(VI50) */
2775 term
->vt52_bold
= TRUE
;
2776 term
->curr_attr
|= ATTR_BOLD
;
2779 /* compatibility(VI50) */
2780 term
->vt52_bold
= FALSE
;
2781 term
->curr_attr
&= ~ATTR_BOLD
;
2787 term
->termstate
= VT52_Y2
;
2788 move(term
, term
->curs
.x
, c
- ' ', 0);
2791 term
->termstate
= TOPLEVEL
;
2792 move(term
, c
- ' ', term
->curs
.y
, 0);
2797 term
->termstate
= TOPLEVEL
;
2798 term
->curr_attr
&= ~ATTR_FGMASK
;
2799 term
->curr_attr
&= ~ATTR_BOLD
;
2800 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2801 if ((c
& 0x8) || term
->vt52_bold
)
2802 term
->curr_attr
|= ATTR_BOLD
;
2805 term
->erase_char
= (' ' | ATTR_ASCII
|
2807 (ATTR_FGMASK
| ATTR_BGMASK
)));
2810 term
->termstate
= TOPLEVEL
;
2811 term
->curr_attr
&= ~ATTR_BGMASK
;
2812 term
->curr_attr
&= ~ATTR_BLINK
;
2813 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2815 /* Note: bold background */
2817 term
->curr_attr
|= ATTR_BLINK
;
2820 term
->erase_char
= (' ' | ATTR_ASCII
|
2822 (ATTR_FGMASK
| ATTR_BGMASK
)));
2825 default: break; /* placate gcc warning about enum use */
2827 if (term
->selstate
!= NO_SELECTION
) {
2828 pos cursplus
= term
->curs
;
2830 check_selection(term
, term
->curs
, cursplus
);
2834 term_print_flush(term
);
2839 * Compare two lines to determine whether they are sufficiently
2840 * alike to scroll-optimise one to the other. Return the degree of
2843 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2847 for (i
= n
= 0; i
< term
->cols
; i
++)
2848 n
+= (*a
++ == *b
++);
2854 * Given a context, update the window. Out of paranoia, we don't
2855 * allow WM_PAINT responses to do scrolling optimisations.
2857 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2859 int i
, j
, our_curs_y
;
2860 unsigned long rv
, cursor
;
2863 long cursor_background
= ERASE_CHAR
;
2864 unsigned long ticks
;
2867 * Check the visual bell state.
2869 if (term
->in_vbell
) {
2870 ticks
= GETTICKCOUNT();
2871 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2872 term
->in_vbell
= FALSE
;
2875 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2878 * screen array, disptop, scrtop,
2880 * cfg.blinkpc, blink_is_real, tblinker,
2881 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2884 /* Has the cursor position or type changed ? */
2885 if (term
->cursor_on
) {
2886 if (term
->has_focus
) {
2887 if (term
->blinker
|| !cfg
.blink_cur
)
2888 cursor
= TATTR_ACTCURS
;
2892 cursor
= TATTR_PASCURS
;
2894 cursor
|= TATTR_RIGHTCURS
;
2897 our_curs_y
= term
->curs
.y
- term
->disptop
;
2899 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2901 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2903 if (term
->dispcurs
> term
->disptext
&&
2904 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2905 term
->dispcurs
[-1] |= ATTR_INVALID
;
2906 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2907 term
->dispcurs
[1] |= ATTR_INVALID
;
2908 *term
->dispcurs
|= ATTR_INVALID
;
2911 term
->dispcurs
= NULL
;
2913 /* The normal screen data */
2914 for (i
= 0; i
< term
->rows
; i
++) {
2915 unsigned long *ldata
;
2917 int idx
, dirty_line
, dirty_run
, selected
;
2918 unsigned long attr
= 0;
2919 int updated_line
= 0;
2922 int last_run_dirty
= 0;
2924 scrpos
.y
= i
+ term
->disptop
;
2925 ldata
= lineptr(scrpos
.y
);
2926 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2928 idx
= i
* (term
->cols
+ 1);
2929 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2930 term
->disptext
[idx
+ term
->cols
]);
2931 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2933 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2934 unsigned long tattr
, tchar
;
2935 unsigned long *d
= ldata
+ j
;
2939 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2940 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2941 switch (tchar
& CSET_MASK
) {
2943 tchar
= unitab_line
[tchar
& 0xFF];
2946 tchar
= unitab_xterm
[tchar
& 0xFF];
2949 tchar
= unitab_scoacs
[tchar
&0xFF];
2952 tattr
|= (tchar
& CSET_MASK
);
2954 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2957 /* Video reversing things */
2958 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
2959 if (term
->seltype
== LEXICOGRAPHIC
)
2960 selected
= (posle(term
->selstart
, scrpos
) &&
2961 poslt(scrpos
, term
->selend
));
2963 selected
= (posPle(term
->selstart
, scrpos
) &&
2964 posPlt(scrpos
, term
->selend
));
2968 ^ (selected ? ATTR_REVERSE
: 0));
2970 /* 'Real' blinking ? */
2971 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
2972 if (term
->has_focus
&& term
->tblinker
) {
2974 tattr
&= ~CSET_MASK
;
2977 tattr
&= ~ATTR_BLINK
;
2981 * Check the font we'll _probably_ be using to see if
2982 * the character is wide when we don't want it to be.
2984 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
2985 if ((tattr
& ATTR_WIDE
) == 0 &&
2986 CharWidth(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
2987 tattr
|= ATTR_NARROW
;
2988 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
2989 tattr
|= ATTR_NARROW
;
2991 /* Cursor here ? Save the 'background' */
2992 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
2993 cursor_background
= tattr
| tchar
;
2994 term
->dispcurs
= term
->disptext
+ idx
;
2997 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3000 break_run
= (tattr
!= attr
|| j
- start
>= sizeof(ch
));
3002 /* Special hack for VT100 Linedraw glyphs */
3003 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3004 && tchar
<= 0xBD) break_run
= TRUE
;
3006 if (!dbcs_screenfont
&& !dirty_line
) {
3007 if ((tchar
| tattr
) == term
->disptext
[idx
])
3009 else if (!dirty_run
&& ccount
== 1)
3014 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3015 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3021 if (dbcs_screenfont
)
3022 last_run_dirty
= dirty_run
;
3023 dirty_run
= dirty_line
;
3026 if ((tchar
| tattr
) != term
->disptext
[idx
])
3028 ch
[ccount
++] = (char) tchar
;
3029 term
->disptext
[idx
] = tchar
| tattr
;
3031 /* If it's a wide char step along to the next one. */
3032 if (tattr
& ATTR_WIDE
) {
3033 if (++j
< term
->cols
) {
3036 /* Cursor is here ? Ouch! */
3037 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3038 cursor_background
= *d
;
3039 term
->dispcurs
= term
->disptext
+ idx
;
3041 if (term
->disptext
[idx
] != *d
)
3043 term
->disptext
[idx
] = *d
;
3047 if (dirty_run
&& ccount
> 0) {
3048 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3052 /* Cursor on this line ? (and changed) */
3053 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3054 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3055 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3056 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3057 term
->curstype
= cursor
;
3063 * Flick the switch that says if blinking things should be shown or hidden.
3066 void term_blink(Terminal
*term
, int flg
)
3068 long now
, blink_diff
;
3070 now
= GETTICKCOUNT();
3071 blink_diff
= now
- term
->last_tblink
;
3073 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3074 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3075 term
->last_tblink
= now
;
3076 term
->tblinker
= !term
->tblinker
;
3081 term
->last_blink
= now
;
3085 blink_diff
= now
- term
->last_blink
;
3087 /* Make sure the cursor blinks no faster than system blink rate */
3088 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3091 term
->last_blink
= now
;
3092 term
->blinker
= !term
->blinker
;
3096 * Invalidate the whole screen so it will be repainted in full.
3098 void term_invalidate(Terminal
*term
)
3102 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3103 term
->disptext
[i
] = ATTR_INVALID
;
3107 * Paint the window in response to a WM_PAINT message.
3109 void term_paint(Terminal
*term
, Context ctx
,
3110 int left
, int top
, int right
, int bottom
, int immediately
)
3113 if (left
< 0) left
= 0;
3114 if (top
< 0) top
= 0;
3115 if (right
>= term
->cols
) right
= term
->cols
-1;
3116 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3118 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3119 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3120 LATTR_MODE
) == LATTR_NORM
)
3121 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3122 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3124 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3125 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3128 /* This should happen soon enough, also for some reason it sometimes
3129 * fails to actually do anything when re-sizing ... painting the wrong
3133 do_paint (term
, ctx
, FALSE
);
3137 * Attempt to scroll the scrollback. The second parameter gives the
3138 * position we want to scroll to; the first is +1 to denote that
3139 * this position is relative to the beginning of the scrollback, -1
3140 * to denote it is relative to the end, and 0 to denote that it is
3141 * relative to the current position.
3143 void term_scroll(Terminal
*term
, int rel
, int where
)
3145 int sbtop
= -count234(term
->scrollback
);
3147 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3148 if (term
->disptop
< sbtop
)
3149 term
->disptop
= sbtop
;
3150 if (term
->disptop
> 0)
3156 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3159 wchar_t *wbptr
; /* where next char goes within workbuf */
3161 int wblen
= 0; /* workbuf len */
3162 int buflen
; /* amount of memory allocated to workbuf */
3164 buflen
= 5120; /* Default size */
3165 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3166 wbptr
= workbuf
; /* start filling here */
3167 old_top_x
= top
.x
; /* needed for rect==1 */
3169 while (poslt(top
, bottom
)) {
3171 unsigned long *ldata
= lineptr(top
.y
);
3175 * nlpos will point at the maximum position on this line we
3176 * should copy up to. So we start it at the end of the
3180 nlpos
.x
= term
->cols
;
3183 * ... move it backwards if there's unused space at the end
3184 * of the line (and also set `nl' if this is the case,
3185 * because in normal selection mode this means we need a
3186 * newline at the end)...
3188 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3189 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3190 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3191 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3192 && poslt(top
, nlpos
))
3194 if (poslt(nlpos
, bottom
))
3199 * ... and then clip it to the terminal x coordinate if
3200 * we're doing rectangular selection. (In this case we
3201 * still did the above, so that copying e.g. the right-hand
3202 * column from a table doesn't fill with spaces on the
3206 if (nlpos
.x
> bottom
.x
)
3208 nl
= (top
.y
< bottom
.y
);
3211 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3214 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3216 wchar_t cbuf
[16], *p
;
3217 int uc
= (ldata
[top
.x
] & 0xFFFF);
3220 if (uc
== UCSWIDE
) {
3225 switch (uc
& CSET_MASK
) {
3228 uc
= unitab_xterm
[uc
& 0xFF];
3232 uc
= unitab_line
[uc
& 0xFF];
3235 uc
= unitab_scoacs
[uc
&0xFF];
3238 switch (uc
& CSET_MASK
) {
3240 uc
= unitab_font
[uc
& 0xFF];
3243 uc
= unitab_oemcp
[uc
& 0xFF];
3247 set
= (uc
& CSET_MASK
);
3248 c
= (uc
& CHAR_MASK
);
3252 if (DIRECT_FONT(uc
)) {
3253 if (c
>= ' ' && c
!= 0x7F) {
3254 unsigned char buf
[4];
3257 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3259 buf
[1] = (unsigned char) ldata
[top
.x
+ 1];
3260 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3264 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3268 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3275 for (p
= cbuf
; *p
; p
++) {
3276 /* Enough overhead for trailing NL and nul */
3277 if (wblen
>= buflen
- 16) {
3280 sizeof(wchar_t) * (buflen
+= 100));
3281 wbptr
= workbuf
+ wblen
;
3290 for (i
= 0; i
< sel_nl_sz
; i
++) {
3292 *wbptr
++ = sel_nl
[i
];
3296 top
.x
= rect ? old_top_x
: 0;
3298 #if SELECTION_NUL_TERMINATED
3302 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3303 if (buflen
> 0) /* indicates we allocated this buffer */
3307 void term_copyall(Terminal
*term
)
3310 top
.y
= -count234(term
->scrollback
);
3312 clipme(term
, top
, term
->curs
, 0);
3316 * The wordness array is mainly for deciding the disposition of the
3317 * US-ASCII characters.
3319 static int wordtype(Terminal
*term
, int uc
)
3322 int start
, end
, ctype
;
3324 static const struct ucsword ucs_words
[] = {
3330 0x037e, 0x037e, 1}, /* Greek question mark */
3332 0x0387, 0x0387, 1}, /* Greek ano teleia */
3334 0x055a, 0x055f, 1}, /* Armenian punctuation */
3336 0x0589, 0x0589, 1}, /* Armenian full stop */
3338 0x0700, 0x070d, 1}, /* Syriac punctuation */
3340 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3342 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3344 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3346 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3348 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3350 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3352 0x2000, 0x200a, 0}, /* Various spaces */
3354 0x2070, 0x207f, 2}, /* superscript */
3356 0x2080, 0x208f, 2}, /* subscript */
3358 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3360 0x3000, 0x3000, 0}, /* ideographic space */
3362 0x3001, 0x3020, 1}, /* ideographic punctuation */
3364 0x303f, 0x309f, 3}, /* Hiragana */
3366 0x30a0, 0x30ff, 3}, /* Katakana */
3368 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3370 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3372 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3374 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3376 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3378 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3380 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3382 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3384 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3388 const struct ucsword
*wptr
;
3390 uc
&= (CSET_MASK
| CHAR_MASK
);
3392 switch (uc
& CSET_MASK
) {
3394 uc
= unitab_xterm
[uc
& 0xFF];
3397 uc
= unitab_line
[uc
& 0xFF];
3400 uc
= unitab_scoacs
[uc
&0xFF];
3403 switch (uc
& CSET_MASK
) {
3405 uc
= unitab_font
[uc
& 0xFF];
3408 uc
= unitab_oemcp
[uc
& 0xFF];
3412 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3413 * fail as there's such a thing as a double width space. :-(
3415 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3419 return term
->wordness
[uc
];
3421 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3422 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3430 * Spread the selection outwards according to the selection mode.
3432 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3434 unsigned long *ldata
;
3436 int topy
= -count234(term
->scrollback
);
3438 ldata
= lineptr(p
.y
);
3440 switch (term
->selmode
) {
3443 * In this mode, every character is a separate unit, except
3444 * for runs of spaces at the end of a non-wrapping line.
3446 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3447 unsigned long *q
= ldata
+ term
->cols
;
3448 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3450 if (q
== ldata
+ term
->cols
)
3452 if (p
.x
>= q
- ldata
)
3453 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3458 * In this mode, the units are maximal runs of characters
3459 * whose `wordness' has the same value.
3461 wvalue
= wordtype(term
, ldata
[p
.x
]);
3464 if (p
.x
< term
->cols
-1) {
3465 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3470 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3471 unsigned long *ldata2
;
3472 ldata2
= lineptr(p
.y
+1);
3473 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3486 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3491 unsigned long *ldata2
;
3494 ldata2
= lineptr(p
.y
-1);
3495 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3496 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3508 * In this mode, every line is a unit.
3510 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3516 static void sel_spread(Terminal
*term
)
3518 if (term
->seltype
== LEXICOGRAPHIC
) {
3519 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3520 decpos(term
->selend
);
3521 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3522 incpos(term
->selend
);
3526 void term_do_paste(Terminal
*term
)
3531 get_clip(term
->frontend
, &data
, &len
);
3532 if (data
&& len
> 0) {
3535 term_seen_key_event(term
); /* pasted data counts */
3537 if (term
->paste_buffer
)
3538 sfree(term
->paste_buffer
);
3539 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3540 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3543 while (p
< data
+ len
) {
3544 while (p
< data
+ len
&&
3545 !(p
<= data
+ len
- sel_nl_sz
&&
3546 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3551 for (i
= 0; i
< p
- q
; i
++) {
3552 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3556 if (p
<= data
+ len
- sel_nl_sz
&&
3557 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3558 term
->paste_buffer
[term
->paste_len
++] = '\r';
3564 /* Assume a small paste will be OK in one go. */
3565 if (term
->paste_len
< 256) {
3567 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3568 if (term
->paste_buffer
)
3569 sfree(term
->paste_buffer
);
3570 term
->paste_buffer
= 0;
3571 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3574 get_clip(term
->frontend
, NULL
, NULL
);
3577 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3578 int shift
, int ctrl
, int alt
)
3581 unsigned long *ldata
;
3582 int raw_mouse
= (term
->xterm_mouse
&&
3583 !cfg
.no_mouse_rep
&&
3584 !(cfg
.mouse_override
&& shift
));
3585 int default_seltype
;
3589 if (a
== MA_DRAG
&& !raw_mouse
)
3590 term_scroll(term
, 0, -1);
3592 if (y
>= term
->rows
) {
3594 if (a
== MA_DRAG
&& !raw_mouse
)
3595 term_scroll(term
, 0, +1);
3604 if (x
>= term
->cols
)
3607 selpoint
.y
= y
+ term
->disptop
;
3609 ldata
= lineptr(selpoint
.y
);
3610 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3614 int encstate
= 0, r
, c
;
3621 encstate
= 0x20; /* left button down */
3632 case MBT_WHEEL_DOWN
:
3635 default: break; /* placate gcc warning about enum use */
3639 if (term
->xterm_mouse
== 1)
3645 term
->mouse_is_down
= 0;
3648 if (term
->mouse_is_down
== b
)
3650 term
->mouse_is_down
= b
;
3652 default: break; /* placate gcc warning about enum use */
3661 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3662 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3667 b
= translate_button(term
->frontend
, b
);
3670 * Set the selection type (rectangular or normal) at the start
3671 * of a selection attempt, from the state of Alt.
3673 if (!alt
^ !cfg
.rect_select
)
3674 default_seltype
= RECTANGULAR
;
3676 default_seltype
= LEXICOGRAPHIC
;
3678 if (term
->selstate
== NO_SELECTION
) {
3679 term
->seltype
= default_seltype
;
3682 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3684 term
->selstate
= ABOUT_TO
;
3685 term
->seltype
= default_seltype
;
3686 term
->selanchor
= selpoint
;
3687 term
->selmode
= SM_CHAR
;
3688 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3690 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3691 term
->selstate
= DRAGGING
;
3692 term
->selstart
= term
->selanchor
= selpoint
;
3693 term
->selend
= term
->selstart
;
3694 incpos(term
->selend
);
3696 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3697 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3698 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3700 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3701 if (term
->seltype
== LEXICOGRAPHIC
) {
3703 * For normal selection, we extend by moving
3704 * whichever end of the current selection is closer
3707 if (posdiff(selpoint
, term
->selstart
) <
3708 posdiff(term
->selend
, term
->selstart
) / 2) {
3709 term
->selanchor
= term
->selend
;
3710 decpos(term
->selanchor
);
3712 term
->selanchor
= term
->selstart
;
3716 * For rectangular selection, we have a choice of
3717 * _four_ places to put selanchor and selpoint: the
3718 * four corners of the selection.
3720 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3721 term
->selanchor
.x
= term
->selend
.x
-1;
3723 term
->selanchor
.x
= term
->selstart
.x
;
3725 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3726 term
->selanchor
.y
= term
->selend
.y
;
3728 term
->selanchor
.y
= term
->selstart
.y
;
3730 term
->selstate
= DRAGGING
;
3732 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3733 term
->selanchor
= selpoint
;
3734 term
->selstate
= DRAGGING
;
3735 if (term
->seltype
== LEXICOGRAPHIC
) {
3737 * For normal selection, we set (selstart,selend) to
3738 * (selpoint,selanchor) in some order.
3740 if (poslt(selpoint
, term
->selanchor
)) {
3741 term
->selstart
= selpoint
;
3742 term
->selend
= term
->selanchor
;
3743 incpos(term
->selend
);
3745 term
->selstart
= term
->selanchor
;
3746 term
->selend
= selpoint
;
3747 incpos(term
->selend
);
3751 * For rectangular selection, we may need to
3752 * interchange x and y coordinates (if the user has
3753 * dragged in the -x and +y directions, or vice versa).
3755 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3756 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3757 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3758 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3761 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3762 if (term
->selstate
== DRAGGING
) {
3764 * We've completed a selection. We now transfer the
3765 * data to the clipboard.
3767 clipme(term
, term
->selstart
, term
->selend
,
3768 (term
->seltype
== RECTANGULAR
));
3769 term
->selstate
= SELECTED
;
3771 term
->selstate
= NO_SELECTION
;
3772 } else if (b
== MBT_PASTE
3774 #if MULTICLICK_ONLY_EVENT
3775 || a
== MA_2CLK
|| a
== MA_3CLK
3778 request_paste(term
->frontend
);
3784 void term_nopaste(Terminal
*term
)
3786 if (term
->paste_len
== 0)
3788 sfree(term
->paste_buffer
);
3789 term
->paste_buffer
= NULL
;
3790 term
->paste_len
= 0;
3793 int term_paste_pending(Terminal
*term
)
3795 return term
->paste_len
!= 0;
3798 void term_paste(Terminal
*term
)
3800 long now
, paste_diff
;
3802 if (term
->paste_len
== 0)
3805 /* Don't wait forever to paste */
3806 if (term
->paste_hold
) {
3807 now
= GETTICKCOUNT();
3808 paste_diff
= now
- term
->last_paste
;
3809 if (paste_diff
>= 0 && paste_diff
< 450)
3812 term
->paste_hold
= 0;
3814 while (term
->paste_pos
< term
->paste_len
) {
3816 while (n
+ term
->paste_pos
< term
->paste_len
) {
3817 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\r')
3821 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3822 term
->paste_pos
+= n
;
3824 if (term
->paste_pos
< term
->paste_len
) {
3825 term
->paste_hold
= 1;
3829 sfree(term
->paste_buffer
);
3830 term
->paste_buffer
= NULL
;
3831 term
->paste_len
= 0;
3834 static void deselect(Terminal
*term
)
3836 term
->selstate
= NO_SELECTION
;
3837 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3840 void term_deselect(Terminal
*term
)
3846 int term_ldisc(Terminal
*term
, int option
)
3848 if (option
== LD_ECHO
)
3849 return term
->term_echoing
;
3850 if (option
== LD_EDIT
)
3851 return term
->term_editing
;
3856 * from_backend(), to get data from the backend for the terminal.
3858 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3860 Terminal
*term
= (Terminal
*)vterm
;
3864 bufchain_add(&term
->inbuf
, data
, len
);
3867 * term_out() always completely empties inbuf. Therefore,
3868 * there's no reason at all to return anything other than zero
3869 * from this function, because there _can't_ be a question of
3870 * the remote side needing to wait until term_out() has cleared
3873 * This is a slightly suboptimal way to deal with SSH2 - in
3874 * principle, the window mechanism would allow us to continue
3875 * to accept data on forwarded ports and X connections even
3876 * while the terminal processing was going slowly - but we
3877 * can't do the 100% right thing without moving the terminal
3878 * processing into a separate thread, and that might hurt
3879 * portability. So we manage stdout buffering the old SSH1 way:
3880 * if the terminal processing goes slowly, the whole SSH
3881 * connection stops accepting data until it's ready.
3883 * In practice, I can't imagine this causing serious trouble.
3888 void term_provide_logctx(Terminal
*term
, void *logctx
)
3890 term
->logctx
= logctx
;