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 unsigned long *resizeline(unsigned long *, int);
66 static unsigned long *lineptr(Terminal
*, int, int);
67 static void do_paint(Terminal
*, Context
, int);
68 static void erase_lots(Terminal
*, int, int, int);
69 static void swap_screen(Terminal
*, int, int, int);
70 static void update_sbar(Terminal
*);
71 static void deselect(Terminal
*);
72 static void term_print_finish(Terminal
*);
73 #ifdef OPTIMISE_SCROLL
74 static void scroll_display(Terminal
*, int, int, int);
75 #endif /* OPTIMISE_SCROLL */
78 * Resize a line to make it `cols' columns wide.
80 static unsigned long *resizeline(unsigned long *line
, int cols
)
83 unsigned long lineattrs
;
85 if (line
[0] != (unsigned long)cols
) {
87 * This line is the wrong length, which probably means it
88 * hasn't been accessed since a resize. Resize it now.
91 lineattrs
= line
[oldlen
+ 1];
92 line
= srealloc(line
, TSIZE
* (2 + cols
));
94 for (i
= oldlen
; i
< cols
; i
++)
95 line
[i
+ 1] = ERASE_CHAR
;
96 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
103 * Retrieve a line of the screen or of the scrollback, according to
104 * whether the y coordinate is non-negative or negative
107 static unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
109 unsigned long *line
, *newline
;
114 whichtree
= term
->screen
;
117 whichtree
= term
->scrollback
;
118 treeindex
= y
+ count234(term
->scrollback
);
120 line
= index234(whichtree
, treeindex
);
122 /* We assume that we don't screw up and retrieve something out of range. */
123 assert(line
!= NULL
);
125 newline
= resizeline(line
, term
->cols
);
126 if (newline
!= line
) {
127 delpos234(whichtree
, treeindex
);
128 addpos234(whichtree
, newline
, treeindex
);
135 #define lineptr(x) lineptr(term,x,__LINE__)
138 * Set up power-on settings for the terminal.
140 static void power_on(Terminal
*term
)
142 term
->curs
.x
= term
->curs
.y
= 0;
143 term
->alt_x
= term
->alt_y
= 0;
144 term
->savecurs
.x
= term
->savecurs
.y
= 0;
145 term
->alt_t
= term
->marg_t
= 0;
146 if (term
->rows
!= -1)
147 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
149 term
->alt_b
= term
->marg_b
= 0;
150 if (term
->cols
!= -1) {
152 for (i
= 0; i
< term
->cols
; i
++)
153 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
155 term
->alt_om
= term
->dec_om
= term
->cfg
->dec_om
;
156 term
->alt_ins
= term
->insert
= FALSE
;
157 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
158 term
->alt_wrap
= term
->wrap
= term
->cfg
->wrap_mode
;
159 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
160 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
162 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
163 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
165 term
->in_vbell
= FALSE
;
167 term
->big_cursor
= 0;
168 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
169 term
->term_editing
= term
->term_echoing
= FALSE
;
170 term
->app_cursor_keys
= term
->cfg
->app_cursor
;
171 term
->app_keypad_keys
= term
->cfg
->app_keypad
;
172 term
->use_bce
= term
->cfg
->bce
;
173 term
->blink_is_real
= term
->cfg
->blinktext
;
174 term
->erase_char
= ERASE_CHAR
;
176 term_print_finish(term
);
179 for (i
= 0; i
< 256; i
++)
180 term
->wordness
[i
] = term
->cfg
->wordness
[i
];
183 swap_screen(term
, 1, FALSE
, FALSE
);
184 erase_lots(term
, FALSE
, TRUE
, TRUE
);
185 swap_screen(term
, 0, FALSE
, FALSE
);
186 erase_lots(term
, FALSE
, TRUE
, TRUE
);
191 * Force a screen update.
193 void term_update(Terminal
*term
)
196 ctx
= get_ctx(term
->frontend
);
198 int need_sbar_update
= term
->seen_disp_event
;
199 if (term
->seen_disp_event
&& term
->cfg
->scroll_on_disp
) {
200 term
->disptop
= 0; /* return to main screen */
201 term
->seen_disp_event
= 0;
202 need_sbar_update
= TRUE
;
204 if (need_sbar_update
)
206 do_paint(term
, ctx
, TRUE
);
207 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
213 * Called from front end when a keypress occurs, to trigger
214 * anything magical that needs to happen in that situation.
216 void term_seen_key_event(Terminal
*term
)
219 * On any keypress, clear the bell overload mechanism
220 * completely, on the grounds that large numbers of
221 * beeps coming from deliberate key action are likely
222 * to be intended (e.g. beeps from filename completion
223 * blocking repeatedly).
225 term
->beep_overloaded
= FALSE
;
226 while (term
->beephead
) {
227 struct beeptime
*tmp
= term
->beephead
;
228 term
->beephead
= tmp
->next
;
231 term
->beeptail
= NULL
;
235 * Reset the scrollback on keypress, if we're doing that.
237 if (term
->cfg
->scroll_on_key
) {
238 term
->disptop
= 0; /* return to main screen */
239 term
->seen_disp_event
= 1;
244 * Same as power_on(), but an external function.
246 void term_pwron(Terminal
*term
)
249 if (term
->ldisc
) /* cause ldisc to notice changes */
250 ldisc_send(term
->ldisc
, NULL
, 0, 0);
258 * When the user reconfigures us, we need to check the forbidden-
259 * alternate-screen config option, disable raw mouse mode if the
260 * user has disabled mouse reporting, and abandon a print job if
261 * the user has disabled printing.
263 void term_reconfig(Terminal
*term
)
265 if (term
->cfg
->no_alt_screen
)
266 swap_screen(term
, 0, FALSE
, FALSE
);
267 if (term
->cfg
->no_mouse_rep
) {
268 term
->xterm_mouse
= 0;
269 set_raw_mouse_mode(term
->frontend
, 0);
271 if (term
->cfg
->no_remote_charset
) {
272 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
273 term
->sco_acs
= term
->alt_sco_acs
= 0;
276 if (!*term
->cfg
->printer
) {
277 term_print_finish(term
);
282 * Clear the scrollback.
284 void term_clrsb(Terminal
*term
)
288 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
295 * Initialise the terminal.
297 Terminal
*term_init(Config
*mycfg
, void *frontend
)
302 * Allocate a new Terminal structure and initialise the fields
305 term
= smalloc(sizeof(Terminal
));
306 term
->frontend
= frontend
;
309 term
->compatibility_level
= TM_PUTTY
;
310 strcpy(term
->id_string
, "\033[?6c");
311 term
->last_blink
= term
->last_tblink
= 0;
312 term
->paste_buffer
= NULL
;
313 term
->last_paste
= 0;
314 bufchain_init(&term
->inbuf
);
315 bufchain_init(&term
->printer_buf
);
316 term
->printing
= term
->only_printing
= FALSE
;
317 term
->print_job
= NULL
;
318 term
->vt52_mode
= FALSE
;
319 term
->cr_lf_return
= FALSE
;
320 term
->seen_disp_event
= FALSE
;
321 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
322 term
->reset_132
= FALSE
;
323 term
->blinker
= term
->tblinker
= 0;
325 term
->repeat_off
= FALSE
;
326 term
->termstate
= TOPLEVEL
;
327 term
->selstate
= NO_SELECTION
;
330 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
332 term
->disptext
= term
->dispcurs
= NULL
;
335 term
->rows
= term
->cols
= -1;
337 term
->beephead
= term
->beeptail
= NULL
;
339 term
->lastbeep
= FALSE
;
340 term
->beep_overloaded
= FALSE
;
341 term
->attr_mask
= 0xffffffff;
342 term
->resize_fn
= NULL
;
343 term
->resize_ctx
= NULL
;
349 * Set up the terminal for a given size.
351 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
354 unsigned long *newdisp
, *line
;
357 int save_alt_which
= term
->alt_which
;
359 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
360 newsavelines
== term
->savelines
)
361 return; /* nothing to do */
364 swap_screen(term
, 0, FALSE
, FALSE
);
366 term
->alt_t
= term
->marg_t
= 0;
367 term
->alt_b
= term
->marg_b
= newrows
- 1;
369 if (term
->rows
== -1) {
370 term
->scrollback
= newtree234(NULL
);
371 term
->screen
= newtree234(NULL
);
376 * Resize the screen and scrollback. We only need to shift
377 * lines around within our data structures, because lineptr()
378 * will take care of resizing each individual line if
381 * - If the new screen and the old screen differ in length, we
382 * must shunt some lines in from the scrollback or out to
385 * - If doing that fails to provide us with enough material to
386 * fill the new screen (i.e. the number of rows needed in
387 * the new screen exceeds the total number in the previous
388 * screen+scrollback), we must invent some blank lines to
391 * - Then, if the new scrollback length is less than the
392 * amount of scrollback we actually have, we must throw some
395 sblen
= count234(term
->scrollback
);
396 /* Do this loop to expand the screen if newrows > rows */
397 for (i
= term
->rows
; i
< newrows
; i
++) {
399 line
= delpos234(term
->scrollback
, --sblen
);
401 line
= smalloc(TSIZE
* (newcols
+ 2));
403 for (j
= 0; j
<= newcols
; j
++)
404 line
[j
+ 1] = ERASE_CHAR
;
406 addpos234(term
->screen
, line
, 0);
408 /* Do this loop to shrink the screen if newrows < rows */
409 for (i
= newrows
; i
< term
->rows
; i
++) {
410 line
= delpos234(term
->screen
, 0);
411 addpos234(term
->scrollback
, line
, sblen
++);
413 assert(count234(term
->screen
) == newrows
);
414 while (sblen
> newsavelines
) {
415 line
= delpos234(term
->scrollback
, 0);
419 assert(count234(term
->scrollback
) <= newsavelines
);
422 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
423 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
424 newdisp
[i
] = ATTR_INVALID
;
425 sfree(term
->disptext
);
426 term
->disptext
= newdisp
;
427 term
->dispcurs
= NULL
;
429 newalt
= newtree234(NULL
);
430 for (i
= 0; i
< newrows
; i
++) {
431 line
= smalloc(TSIZE
* (newcols
+ 2));
433 for (j
= 0; j
<= newcols
; j
++)
434 line
[j
+ 1] = term
->erase_char
;
435 addpos234(newalt
, line
, i
);
437 if (term
->alt_screen
) {
438 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
440 freetree234(term
->alt_screen
);
442 term
->alt_screen
= newalt
;
444 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
447 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
448 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
452 term
->curs
.y
+= newrows
- term
->rows
;
453 if (term
->curs
.y
< 0)
455 if (term
->curs
.y
>= newrows
)
456 term
->curs
.y
= newrows
- 1;
457 if (term
->curs
.x
>= newcols
)
458 term
->curs
.x
= newcols
- 1;
459 term
->alt_x
= term
->alt_y
= 0;
460 term
->wrapnext
= term
->alt_wnext
= FALSE
;
462 term
->rows
= newrows
;
463 term
->cols
= newcols
;
464 term
->savelines
= newsavelines
;
467 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
472 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
476 * Hand a function and context pointer to the terminal which it can
477 * use to notify a back end of resizes.
479 void term_provide_resize_fn(Terminal
*term
,
480 void (*resize_fn
)(void *, int, int),
483 term
->resize_fn
= resize_fn
;
484 term
->resize_ctx
= resize_ctx
;
485 if (term
->cols
> 0 && term
->rows
> 0)
486 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
490 * Swap screens. If `reset' is TRUE and we have been asked to
491 * switch to the alternate screen, we must bring most of its
492 * configuration from the main screen and erase the contents of the
493 * alternate screen completely. (This is even true if we're already
494 * on it! Blame xterm.)
496 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
502 reset
= FALSE
; /* do no weird resetting if which==0 */
504 if (which
!= term
->alt_which
) {
505 term
->alt_which
= which
;
507 ttr
= term
->alt_screen
;
508 term
->alt_screen
= term
->screen
;
511 if (!reset
&& !keep_cur_pos
)
512 term
->curs
.x
= term
->alt_x
;
515 if (!reset
&& !keep_cur_pos
)
516 term
->curs
.y
= term
->alt_y
;
519 if (!reset
) term
->marg_t
= term
->alt_t
;
522 if (!reset
) term
->marg_b
= term
->alt_b
;
525 if (!reset
) term
->dec_om
= term
->alt_om
;
528 if (!reset
) term
->wrap
= term
->alt_wrap
;
531 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
534 if (!reset
) term
->insert
= term
->alt_ins
;
537 if (!reset
) term
->cset
= term
->alt_cset
;
540 if (!reset
) term
->utf
= term
->alt_utf
;
543 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
544 term
->alt_sco_acs
= t
;
547 if (reset
&& term
->screen
) {
549 * Yes, this _is_ supposed to honour background-colour-erase.
551 erase_lots(term
, FALSE
, TRUE
, TRUE
);
555 * This might not be possible if we're called during
563 * Update the scroll bar.
565 static void update_sbar(Terminal
*term
)
569 nscroll
= count234(term
->scrollback
);
571 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
572 nscroll
+ term
->disptop
, term
->rows
);
576 * Check whether the region bounded by the two pointers intersects
577 * the scroll region, and de-select the on-screen selection if so.
579 static void check_selection(Terminal
*term
, pos from
, pos to
)
581 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
586 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
587 * for backward.) `sb' is TRUE if the scrolling is permitted to
588 * affect the scrollback buffer.
590 * NB this function invalidates all pointers into lines of the
591 * screen data structures. In particular, you MUST call fix_cpos
592 * after calling scroll() and before doing anything else that
593 * uses the cpos shortcut pointer.
595 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
597 unsigned long *line
, *line2
;
598 int i
, seltop
, olddisptop
, shift
;
600 if (topline
!= 0 || term
->alt_which
!= 0)
603 olddisptop
= term
->disptop
;
607 line
= delpos234(term
->screen
, botline
);
608 line
= resizeline(line
, term
->cols
);
609 for (i
= 0; i
< term
->cols
; i
++)
610 line
[i
+ 1] = term
->erase_char
;
611 line
[term
->cols
+ 1] = 0;
612 addpos234(term
->screen
, line
, topline
);
614 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
616 if (term
->selstart
.y
> botline
) {
617 term
->selstart
.y
= botline
;
618 term
->selstart
.x
= 0;
621 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
623 if (term
->selend
.y
> botline
) {
624 term
->selend
.y
= botline
;
633 line
= delpos234(term
->screen
, topline
);
634 if (sb
&& term
->savelines
> 0) {
635 int sblen
= count234(term
->scrollback
);
637 * We must add this line to the scrollback. We'll
638 * remove a line from the top of the scrollback to
639 * replace it, or allocate a new one if the
640 * scrollback isn't full.
642 if (sblen
== term
->savelines
) {
643 sblen
--, line2
= delpos234(term
->scrollback
, 0);
645 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
646 line2
[0] = term
->cols
;
648 addpos234(term
->scrollback
, line
, sblen
);
652 * If the user is currently looking at part of the
653 * scrollback, and they haven't enabled any options
654 * that are going to reset the scrollback as a
655 * result of this movement, then the chances are
656 * they'd like to keep looking at the same line. So
657 * we move their viewpoint at the same rate as the
658 * scroll, at least until their viewpoint hits the
659 * top end of the scrollback buffer, at which point
660 * we don't have the choice any more.
662 * Thanks to Jan Holmen Holsten for the idea and
663 * initial implementation.
665 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
668 line
= resizeline(line
, term
->cols
);
669 for (i
= 0; i
< term
->cols
; i
++)
670 line
[i
+ 1] = term
->erase_char
;
671 line
[term
->cols
+ 1] = 0;
672 addpos234(term
->screen
, line
, botline
);
675 * If the selection endpoints move into the scrollback,
676 * we keep them moving until they hit the top. However,
677 * of course, if the line _hasn't_ moved into the
678 * scrollback then we don't do this, and cut them off
679 * at the top of the scroll region.
681 * This applies to selstart and selend (for an existing
682 * selection), and also selanchor (for one being
683 * selected as we speak).
685 seltop
= sb ?
-term
->savelines
: topline
;
687 if (term
->selstart
.y
>= seltop
&&
688 term
->selstart
.y
<= botline
) {
690 if (term
->selstart
.y
< seltop
) {
691 term
->selstart
.y
= seltop
;
692 term
->selstart
.x
= 0;
695 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
697 if (term
->selend
.y
< seltop
) {
698 term
->selend
.y
= seltop
;
702 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
704 if (term
->selanchor
.y
< seltop
) {
705 term
->selanchor
.y
= seltop
;
706 term
->selanchor
.x
= 0;
713 #ifdef OPTIMISE_SCROLL
714 shift
+= term
->disptop
- olddisptop
;
715 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
716 scroll_display(term
, topline
, botline
, shift
);
717 #endif /* OPTIMISE_SCROLL */
720 #ifdef OPTIMISE_SCROLL
722 * Scroll the physical display, and our conception of it in disptext.
724 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
726 unsigned long *start
, *end
;
727 int distance
, size
, i
;
729 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
730 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
731 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
732 size
= end
- start
- distance
;
734 memmove(start
, start
+ distance
, size
* TSIZE
);
735 if (term
->dispcurs
>= start
+ distance
&&
736 term
->dispcurs
<= start
+ distance
+ size
)
737 term
->dispcurs
-= distance
;
738 for (i
= 0; i
< distance
; i
++)
739 (start
+ size
)[i
] |= ATTR_INVALID
;
741 memmove(start
+ distance
, start
, size
* TSIZE
);
742 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
743 term
->dispcurs
+= distance
;
744 for (i
= 0; i
< distance
; i
++)
745 start
[i
] |= ATTR_INVALID
;
747 do_scroll(term
->frontend
, topline
, botline
, lines
);
749 #endif /* OPTIMISE_SCROLL */
752 * Move the cursor to a given position, clipping at boundaries. We
753 * may or may not want to clip at the scroll margin: marg_clip is 0
754 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
755 * even _being_ outside the margins.
757 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
764 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
767 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
778 term
->wrapnext
= FALSE
;
782 * Save or restore the cursor and SGR mode.
784 static void save_cursor(Terminal
*term
, int save
)
787 term
->savecurs
= term
->curs
;
788 term
->save_attr
= term
->curr_attr
;
789 term
->save_cset
= term
->cset
;
790 term
->save_utf
= term
->utf
;
791 term
->save_wnext
= term
->wrapnext
;
792 term
->save_csattr
= term
->cset_attr
[term
->cset
];
793 term
->save_sco_acs
= term
->sco_acs
;
795 term
->curs
= term
->savecurs
;
796 /* Make sure the window hasn't shrunk since the save */
797 if (term
->curs
.x
>= term
->cols
)
798 term
->curs
.x
= term
->cols
- 1;
799 if (term
->curs
.y
>= term
->rows
)
800 term
->curs
.y
= term
->rows
- 1;
802 term
->curr_attr
= term
->save_attr
;
803 term
->cset
= term
->save_cset
;
804 term
->utf
= term
->save_utf
;
805 term
->wrapnext
= term
->save_wnext
;
807 * wrapnext might reset to False if the x position is no
808 * longer at the rightmost edge.
810 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
811 term
->wrapnext
= FALSE
;
812 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
813 term
->sco_acs
= term
->save_sco_acs
;
816 term
->erase_char
= (' ' | ATTR_ASCII
|
818 (ATTR_FGMASK
| ATTR_BGMASK
)));
823 * Erase a large portion of the screen: the whole screen, or the
824 * whole line, or parts thereof.
826 static void erase_lots(Terminal
*term
,
827 int line_only
, int from_begin
, int to_end
)
831 unsigned long *ldata
;
834 start
.y
= term
->curs
.y
;
836 end
.y
= term
->curs
.y
+ 1;
853 check_selection(term
, start
, end
);
855 /* Clear screen also forces a full window redraw, just in case. */
856 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
857 term_invalidate(term
);
859 ldata
= lineptr(start
.y
);
860 while (poslt(start
, end
)) {
861 if (start
.x
== term
->cols
&& !erase_lattr
)
862 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
864 ldata
[start
.x
] = term
->erase_char
;
865 if (incpos(start
) && start
.y
< term
->rows
)
866 ldata
= lineptr(start
.y
);
871 * Insert or delete characters within the current line. n is +ve if
872 * insertion is desired, and -ve for deletion.
874 static void insch(Terminal
*term
, int n
)
876 int dir
= (n
< 0 ?
-1 : +1);
879 unsigned long *ldata
;
881 n
= (n
< 0 ?
-n
: n
);
882 if (n
> term
->cols
- term
->curs
.x
)
883 n
= term
->cols
- term
->curs
.x
;
884 m
= term
->cols
- term
->curs
.x
- n
;
885 cursplus
.y
= term
->curs
.y
;
886 cursplus
.x
= term
->curs
.x
+ n
;
887 check_selection(term
, term
->curs
, cursplus
);
888 ldata
= lineptr(term
->curs
.y
);
890 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
892 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
894 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
896 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
901 * Toggle terminal mode `mode' to state `state'. (`query' indicates
902 * whether the mode is a DEC private one or a normal one.)
904 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
910 case 1: /* application cursor keys */
911 term
->app_cursor_keys
= state
;
913 case 2: /* VT52 mode */
914 term
->vt52_mode
= !state
;
915 if (term
->vt52_mode
) {
916 term
->blink_is_real
= FALSE
;
917 term
->vt52_bold
= FALSE
;
919 term
->blink_is_real
= term
->cfg
->blinktext
;
922 case 3: /* 80/132 columns */
924 if (!term
->cfg
->no_remote_resize
)
925 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
926 term
->reset_132
= state
;
928 case 5: /* reverse video */
930 * Toggle reverse video. If we receive an OFF within the
931 * visual bell timeout period after an ON, we trigger an
932 * effective visual bell, so that ESC[?5hESC[?5l will
933 * always be an actually _visible_ visual bell.
935 ticks
= GETTICKCOUNT();
936 /* turn off a previous vbell to avoid inconsistencies */
937 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
938 term
->in_vbell
= FALSE
;
939 if (term
->rvideo
&& !state
&& /* we're turning it off... */
940 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
941 /* If there's no vbell timeout already, or this one lasts
942 * longer, replace vbell_timeout with ours. */
943 if (!term
->in_vbell
||
944 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
946 term
->vbell_startpoint
= term
->rvbell_startpoint
;
947 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
948 } else if (!term
->rvideo
&& state
) {
949 /* This is an ON, so we notice the time and save it. */
950 term
->rvbell_startpoint
= ticks
;
952 term
->rvideo
= state
;
953 term
->seen_disp_event
= TRUE
;
957 case 6: /* DEC origin mode */
958 term
->dec_om
= state
;
960 case 7: /* auto wrap */
963 case 8: /* auto key repeat */
964 term
->repeat_off
= !state
;
966 case 10: /* set local edit mode */
967 term
->term_editing
= state
;
968 if (term
->ldisc
) /* cause ldisc to notice changes */
969 ldisc_send(term
->ldisc
, NULL
, 0, 0);
971 case 25: /* enable/disable cursor */
972 compatibility2(OTHER
, VT220
);
973 term
->cursor_on
= state
;
974 term
->seen_disp_event
= TRUE
;
976 case 47: /* alternate screen */
977 compatibility(OTHER
);
979 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, FALSE
, FALSE
);
982 case 1000: /* xterm mouse 1 */
983 term
->xterm_mouse
= state ?
1 : 0;
984 set_raw_mouse_mode(term
->frontend
, state
);
986 case 1002: /* xterm mouse 2 */
987 term
->xterm_mouse
= state ?
2 : 0;
988 set_raw_mouse_mode(term
->frontend
, state
);
990 case 1047: /* alternate screen */
991 compatibility(OTHER
);
993 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, TRUE
);
996 case 1048: /* save/restore cursor */
997 save_cursor(term
, state
);
998 if (!state
) term
->seen_disp_event
= TRUE
;
1000 case 1049: /* cursor & alternate screen */
1002 save_cursor(term
, state
);
1003 if (!state
) term
->seen_disp_event
= TRUE
;
1004 compatibility(OTHER
);
1006 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1008 save_cursor(term
, state
);
1013 case 4: /* set insert mode */
1014 compatibility(VT102
);
1015 term
->insert
= state
;
1017 case 12: /* set echo mode */
1018 term
->term_echoing
= !state
;
1019 if (term
->ldisc
) /* cause ldisc to notice changes */
1020 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1022 case 20: /* Return sends ... */
1023 term
->cr_lf_return
= state
;
1025 case 34: /* Make cursor BIG */
1026 compatibility2(OTHER
, VT220
);
1027 term
->big_cursor
= !state
;
1032 * Process an OSC sequence: set window title or icon name.
1034 static void do_osc(Terminal
*term
)
1037 while (term
->osc_strlen
--)
1038 term
->wordness
[(unsigned char)
1039 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1041 term
->osc_string
[term
->osc_strlen
] = '\0';
1042 switch (term
->esc_args
[0]) {
1045 if (!term
->cfg
->no_remote_wintitle
)
1046 set_icon(term
->frontend
, term
->osc_string
);
1047 if (term
->esc_args
[0] == 1)
1049 /* fall through: parameter 0 means set both */
1052 if (!term
->cfg
->no_remote_wintitle
)
1053 set_title(term
->frontend
, term
->osc_string
);
1060 * ANSI printing routines.
1062 static void term_print_setup(Terminal
*term
)
1064 bufchain_clear(&term
->printer_buf
);
1065 term
->print_job
= printer_start_job(term
->cfg
->printer
);
1067 static void term_print_flush(Terminal
*term
)
1072 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1073 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1076 printer_job_data(term
->print_job
, data
, len
);
1077 bufchain_consume(&term
->printer_buf
, len
);
1080 static void term_print_finish(Terminal
*term
)
1086 if (!term
->printing
&& !term
->only_printing
)
1087 return; /* we need do nothing */
1089 term_print_flush(term
);
1090 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1091 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1093 if (c
== '\033' || c
== '\233') {
1094 bufchain_consume(&term
->printer_buf
, size
);
1097 printer_job_data(term
->print_job
, &c
, 1);
1098 bufchain_consume(&term
->printer_buf
, 1);
1101 printer_finish_job(term
->print_job
);
1102 term
->print_job
= NULL
;
1103 term
->printing
= term
->only_printing
= FALSE
;
1107 * Remove everything currently in `inbuf' and stick it up on the
1108 * in-memory display. There's a big state machine in here to
1109 * process escape sequences...
1111 void term_out(Terminal
*term
)
1114 unsigned char localbuf
[256], *chars
;
1119 chars
= NULL
; /* placate compiler warnings */
1120 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1124 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1125 if (nchars
> sizeof(localbuf
))
1126 nchars
= sizeof(localbuf
);
1127 memcpy(localbuf
, ret
, nchars
);
1128 bufchain_consume(&term
->inbuf
, nchars
);
1130 assert(chars
!= NULL
);
1136 * Optionally log the session traffic to a file. Useful for
1137 * debugging and possibly also useful for actual logging.
1139 if (term
->cfg
->logtype
== LGTYP_DEBUG
&& term
->logctx
)
1140 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1146 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1147 * be able to display 8-bit characters, but I'll let that go 'cause
1152 * If we're printing, add the character to the printer
1155 if (term
->printing
) {
1156 bufchain_add(&term
->printer_buf
, &c
, 1);
1159 * If we're in print-only mode, we use a much simpler
1160 * state machine designed only to recognise the ESC[4i
1161 * termination sequence.
1163 if (term
->only_printing
) {
1165 term
->print_state
= 1;
1166 else if (c
== (unsigned char)'\233')
1167 term
->print_state
= 2;
1168 else if (c
== '[' && term
->print_state
== 1)
1169 term
->print_state
= 2;
1170 else if (c
== '4' && term
->print_state
== 2)
1171 term
->print_state
= 3;
1172 else if (c
== 'i' && term
->print_state
== 3)
1173 term
->print_state
= 4;
1175 term
->print_state
= 0;
1176 if (term
->print_state
== 4) {
1177 term_print_finish(term
);
1183 /* First see about all those translations. */
1184 if (term
->termstate
== TOPLEVEL
) {
1186 switch (term
->utf_state
) {
1189 /* UTF-8 must be stateless so we ignore iso2022. */
1190 if (unitab_ctrl
[c
] != 0xFF)
1192 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1194 } else if ((c
& 0xe0) == 0xc0) {
1195 term
->utf_size
= term
->utf_state
= 1;
1196 term
->utf_char
= (c
& 0x1f);
1197 } else if ((c
& 0xf0) == 0xe0) {
1198 term
->utf_size
= term
->utf_state
= 2;
1199 term
->utf_char
= (c
& 0x0f);
1200 } else if ((c
& 0xf8) == 0xf0) {
1201 term
->utf_size
= term
->utf_state
= 3;
1202 term
->utf_char
= (c
& 0x07);
1203 } else if ((c
& 0xfc) == 0xf8) {
1204 term
->utf_size
= term
->utf_state
= 4;
1205 term
->utf_char
= (c
& 0x03);
1206 } else if ((c
& 0xfe) == 0xfc) {
1207 term
->utf_size
= term
->utf_state
= 5;
1208 term
->utf_char
= (c
& 0x01);
1219 if ((c
& 0xC0) != 0x80) {
1222 term
->utf_state
= 0;
1225 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1226 if (--term
->utf_state
)
1231 /* Is somebody trying to be evil! */
1233 (c
< 0x800 && term
->utf_size
>= 2) ||
1234 (c
< 0x10000 && term
->utf_size
>= 3) ||
1235 (c
< 0x200000 && term
->utf_size
>= 4) ||
1236 (c
< 0x4000000 && term
->utf_size
>= 5))
1239 /* Unicode line separator and paragraph separator are CR-LF */
1240 if (c
== 0x2028 || c
== 0x2029)
1243 /* High controls are probably a Baaad idea too. */
1247 /* The UTF-16 surrogates are not nice either. */
1248 /* The standard give the option of decoding these:
1249 * I don't want to! */
1250 if (c
>= 0xD800 && c
< 0xE000)
1253 /* ISO 10646 characters now limited to UTF-16 range. */
1257 /* This is currently a TagPhobic application.. */
1258 if (c
>= 0xE0000 && c
<= 0xE007F)
1261 /* U+FEFF is best seen as a null. */
1264 /* But U+FFFE is an error. */
1265 if (c
== 0xFFFE || c
== 0xFFFF)
1268 /* Oops this is a 16bit implementation */
1273 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1274 else if(term
->sco_acs
&&
1275 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1277 if (term
->sco_acs
== 2) c
|= 0x80;
1280 switch (term
->cset_attr
[term
->cset
]) {
1282 * Linedraw characters are different from 'ESC ( B'
1283 * only for a small range. For ones outside that
1284 * range, make sure we use the same font as well as
1285 * the same encoding.
1288 if (unitab_ctrl
[c
] != 0xFF)
1291 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1295 /* If UK-ASCII, make the '#' a LineDraw Pound */
1297 c
= '}' | ATTR_LINEDRW
;
1300 /*FALLTHROUGH*/ case ATTR_ASCII
:
1301 if (unitab_ctrl
[c
] != 0xFF)
1304 c
= ((unsigned char) c
) | ATTR_ASCII
;
1307 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1313 /* How about C1 controls ? */
1314 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1315 !term
->vt52_mode
&& has_compat(VT220
)) {
1316 term
->termstate
= SEEN_ESC
;
1317 term
->esc_query
= FALSE
;
1318 c
= '@' + (c
& 0x1F);
1321 /* Or the GL control. */
1322 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1323 if (term
->curs
.x
&& !term
->wrapnext
)
1325 term
->wrapnext
= FALSE
;
1327 if (!term
->cfg
->no_dbackspace
) /* destructive bksp might be disabled */
1328 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1330 /* Or normal C0 controls. */
1331 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1333 case '\005': /* terminal type query */
1334 /* Strictly speaking this is VT100 but a VT100 defaults to
1335 * no response. Other terminals respond at their option.
1337 * Don't put a CR in the default string as this tends to
1338 * upset some weird software.
1340 * An xterm returns "xterm" (5 characters)
1342 compatibility(ANSIMIN
);
1344 char abuf
[256], *s
, *d
;
1346 for (s
= term
->cfg
->answerback
, d
= abuf
; *s
; s
++) {
1348 if (*s
>= 'a' && *s
<= 'z')
1349 *d
++ = (*s
- ('a' - 1));
1350 else if ((*s
>= '@' && *s
<= '_') ||
1351 *s
== '?' || (*s
& 0x80))
1356 } else if (*s
== '^') {
1361 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1367 struct beeptime
*newbeep
;
1368 unsigned long ticks
;
1370 ticks
= GETTICKCOUNT();
1372 if (!term
->beep_overloaded
) {
1373 newbeep
= smalloc(sizeof(struct beeptime
));
1374 newbeep
->ticks
= ticks
;
1375 newbeep
->next
= NULL
;
1376 if (!term
->beephead
)
1377 term
->beephead
= newbeep
;
1379 term
->beeptail
->next
= newbeep
;
1380 term
->beeptail
= newbeep
;
1385 * Throw out any beeps that happened more than
1388 while (term
->beephead
&&
1389 term
->beephead
->ticks
< ticks
- term
->cfg
->bellovl_t
) {
1390 struct beeptime
*tmp
= term
->beephead
;
1391 term
->beephead
= tmp
->next
;
1393 if (!term
->beephead
)
1394 term
->beeptail
= NULL
;
1398 if (term
->cfg
->bellovl
&& term
->beep_overloaded
&&
1399 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
->bellovl_s
) {
1401 * If we're currently overloaded and the
1402 * last beep was more than s seconds ago,
1403 * leave overload mode.
1405 term
->beep_overloaded
= FALSE
;
1406 } else if (term
->cfg
->bellovl
&& !term
->beep_overloaded
&&
1407 term
->nbeeps
>= term
->cfg
->bellovl_n
) {
1409 * Now, if we have n or more beeps
1410 * remaining in the queue, go into overload
1413 term
->beep_overloaded
= TRUE
;
1415 term
->lastbeep
= ticks
;
1418 * Perform an actual beep if we're not overloaded.
1420 if (!term
->cfg
->bellovl
|| !term
->beep_overloaded
) {
1421 beep(term
->frontend
, term
->cfg
->beep
);
1422 if (term
->cfg
->beep
== BELL_VISUAL
) {
1423 term
->in_vbell
= TRUE
;
1424 term
->vbell_startpoint
= ticks
;
1432 if (term
->curs
.x
== 0 &&
1433 (term
->curs
.y
== 0 || term
->wrap
== 0))
1435 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1436 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1437 else if (term
->wrapnext
)
1438 term
->wrapnext
= FALSE
;
1442 term
->seen_disp_event
= TRUE
;
1445 compatibility(VT100
);
1449 compatibility(VT100
);
1453 if (term
->vt52_mode
)
1454 term
->termstate
= VT52_ESC
;
1456 compatibility(ANSIMIN
);
1457 term
->termstate
= SEEN_ESC
;
1458 term
->esc_query
= FALSE
;
1463 term
->wrapnext
= FALSE
;
1465 term
->seen_disp_event
= TRUE
;
1466 term
->paste_hold
= 0;
1468 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1471 if (has_compat(SCOANSI
)) {
1472 move(term
, 0, 0, 0);
1473 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1475 term
->wrapnext
= FALSE
;
1476 term
->seen_disp_event
= 1;
1480 compatibility(VT100
);
1482 if (term
->curs
.y
== term
->marg_b
)
1483 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1484 else if (term
->curs
.y
< term
->rows
- 1)
1486 if (term
->cfg
->lfhascr
)
1489 term
->wrapnext
= FALSE
;
1490 term
->seen_disp_event
= 1;
1491 term
->paste_hold
= 0;
1493 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1497 pos old_curs
= term
->curs
;
1498 unsigned long *ldata
= lineptr(term
->curs
.y
);
1502 } while (term
->curs
.x
< term
->cols
- 1 &&
1503 !term
->tabs
[term
->curs
.x
]);
1505 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1506 if (term
->curs
.x
>= term
->cols
/ 2)
1507 term
->curs
.x
= term
->cols
/ 2 - 1;
1509 if (term
->curs
.x
>= term
->cols
)
1510 term
->curs
.x
= term
->cols
- 1;
1514 check_selection(term
, old_curs
, term
->curs
);
1516 term
->seen_disp_event
= TRUE
;
1520 switch (term
->termstate
) {
1522 /* Only graphic characters get this far;
1523 * ctrls are stripped above */
1524 if (term
->wrapnext
&& term
->wrap
) {
1525 term
->cpos
[1] |= LATTR_WRAPPED
;
1526 if (term
->curs
.y
== term
->marg_b
)
1527 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1528 else if (term
->curs
.y
< term
->rows
- 1)
1532 term
->wrapnext
= FALSE
;
1536 if (term
->selstate
!= NO_SELECTION
) {
1537 pos cursplus
= term
->curs
;
1539 check_selection(term
, term
->curs
, cursplus
);
1541 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1543 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1549 width
= wcwidth((wchar_t) c
);
1552 *term
->cpos
++ = c
| term
->curr_attr
;
1553 if (++term
->curs
.x
== term
->cols
) {
1554 *term
->cpos
|= LATTR_WRAPPED
;
1555 if (term
->curs
.y
== term
->marg_b
)
1556 scroll(term
, term
->marg_t
, term
->marg_b
,
1558 else if (term
->curs
.y
< term
->rows
- 1)
1563 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1566 *term
->cpos
++ = c
| term
->curr_attr
;
1573 if (term
->curs
.x
== term
->cols
) {
1576 term
->wrapnext
= TRUE
;
1577 if (term
->wrap
&& term
->vt52_mode
) {
1578 term
->cpos
[1] |= LATTR_WRAPPED
;
1579 if (term
->curs
.y
== term
->marg_b
)
1580 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1581 else if (term
->curs
.y
< term
->rows
- 1)
1585 term
->wrapnext
= FALSE
;
1588 term
->seen_disp_event
= 1;
1593 * This state is virtually identical to SEEN_ESC, with the
1594 * exception that we have an OSC sequence in the pipeline,
1595 * and _if_ we see a backslash, we process it.
1599 term
->termstate
= TOPLEVEL
;
1602 /* else fall through */
1604 if (c
>= ' ' && c
<= '/') {
1605 if (term
->esc_query
)
1606 term
->esc_query
= -1;
1608 term
->esc_query
= c
;
1611 term
->termstate
= TOPLEVEL
;
1612 switch (ANSI(c
, term
->esc_query
)) {
1613 case '[': /* enter CSI mode */
1614 term
->termstate
= SEEN_CSI
;
1615 term
->esc_nargs
= 1;
1616 term
->esc_args
[0] = ARG_DEFAULT
;
1617 term
->esc_query
= FALSE
;
1619 case ']': /* xterm escape sequences */
1620 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1621 compatibility(OTHER
);
1622 term
->termstate
= SEEN_OSC
;
1623 term
->esc_args
[0] = 0;
1625 case '7': /* save cursor */
1626 compatibility(VT100
);
1627 save_cursor(term
, TRUE
);
1629 case '8': /* restore cursor */
1630 compatibility(VT100
);
1631 save_cursor(term
, FALSE
);
1632 term
->seen_disp_event
= TRUE
;
1635 compatibility(VT100
);
1636 term
->app_keypad_keys
= TRUE
;
1639 compatibility(VT100
);
1640 term
->app_keypad_keys
= FALSE
;
1642 case 'D': /* exactly equivalent to LF */
1643 compatibility(VT100
);
1644 if (term
->curs
.y
== term
->marg_b
)
1645 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1646 else if (term
->curs
.y
< term
->rows
- 1)
1649 term
->wrapnext
= FALSE
;
1650 term
->seen_disp_event
= TRUE
;
1652 case 'E': /* exactly equivalent to CR-LF */
1653 compatibility(VT100
);
1655 if (term
->curs
.y
== term
->marg_b
)
1656 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1657 else if (term
->curs
.y
< term
->rows
- 1)
1660 term
->wrapnext
= FALSE
;
1661 term
->seen_disp_event
= TRUE
;
1663 case 'M': /* reverse index - backwards LF */
1664 compatibility(VT100
);
1665 if (term
->curs
.y
== term
->marg_t
)
1666 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1667 else if (term
->curs
.y
> 0)
1670 term
->wrapnext
= FALSE
;
1671 term
->seen_disp_event
= TRUE
;
1673 case 'Z': /* terminal type query */
1674 compatibility(VT100
);
1676 ldisc_send(term
->ldisc
, term
->id_string
,
1677 strlen(term
->id_string
), 0);
1679 case 'c': /* restore power-on settings */
1680 compatibility(VT100
);
1682 if (term
->ldisc
) /* cause ldisc to notice changes */
1683 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1684 if (term
->reset_132
) {
1685 if (!term
->cfg
->no_remote_resize
)
1686 request_resize(term
->frontend
, 80, term
->rows
);
1687 term
->reset_132
= 0;
1691 term
->seen_disp_event
= TRUE
;
1693 case 'H': /* set a tab */
1694 compatibility(VT100
);
1695 term
->tabs
[term
->curs
.x
] = TRUE
;
1698 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1699 compatibility(VT100
);
1701 unsigned long *ldata
;
1705 for (i
= 0; i
< term
->rows
; i
++) {
1707 for (j
= 0; j
< term
->cols
; j
++)
1708 ldata
[j
] = ATTR_DEFAULT
| 'E';
1709 ldata
[term
->cols
] = 0;
1712 term
->seen_disp_event
= TRUE
;
1713 scrtop
.x
= scrtop
.y
= 0;
1715 scrbot
.y
= term
->rows
;
1716 check_selection(term
, scrtop
, scrbot
);
1720 case ANSI('3', '#'):
1721 case ANSI('4', '#'):
1722 case ANSI('5', '#'):
1723 case ANSI('6', '#'):
1724 compatibility(VT100
);
1726 unsigned long nlattr
;
1727 unsigned long *ldata
;
1728 switch (ANSI(c
, term
->esc_query
)) {
1729 case ANSI('3', '#'):
1732 case ANSI('4', '#'):
1735 case ANSI('5', '#'):
1736 nlattr
= LATTR_NORM
;
1738 default: /* spiritually case ANSI('6', '#'): */
1739 nlattr
= LATTR_WIDE
;
1742 ldata
= lineptr(term
->curs
.y
);
1743 ldata
[term
->cols
] &= ~LATTR_MODE
;
1744 ldata
[term
->cols
] |= nlattr
;
1748 case ANSI('A', '('):
1749 compatibility(VT100
);
1750 if (!term
->cfg
->no_remote_charset
)
1751 term
->cset_attr
[0] = ATTR_GBCHR
;
1753 case ANSI('B', '('):
1754 compatibility(VT100
);
1755 if (!term
->cfg
->no_remote_charset
)
1756 term
->cset_attr
[0] = ATTR_ASCII
;
1758 case ANSI('0', '('):
1759 compatibility(VT100
);
1760 if (!term
->cfg
->no_remote_charset
)
1761 term
->cset_attr
[0] = ATTR_LINEDRW
;
1763 case ANSI('U', '('):
1764 compatibility(OTHER
);
1765 if (!term
->cfg
->no_remote_charset
)
1766 term
->cset_attr
[0] = ATTR_SCOACS
;
1769 case ANSI('A', ')'):
1770 compatibility(VT100
);
1771 if (!term
->cfg
->no_remote_charset
)
1772 term
->cset_attr
[1] = ATTR_GBCHR
;
1774 case ANSI('B', ')'):
1775 compatibility(VT100
);
1776 if (!term
->cfg
->no_remote_charset
)
1777 term
->cset_attr
[1] = ATTR_ASCII
;
1779 case ANSI('0', ')'):
1780 compatibility(VT100
);
1781 if (!term
->cfg
->no_remote_charset
)
1782 term
->cset_attr
[1] = ATTR_LINEDRW
;
1784 case ANSI('U', ')'):
1785 compatibility(OTHER
);
1786 if (!term
->cfg
->no_remote_charset
)
1787 term
->cset_attr
[1] = ATTR_SCOACS
;
1790 case ANSI('8', '%'): /* Old Linux code */
1791 case ANSI('G', '%'):
1792 compatibility(OTHER
);
1793 if (!term
->cfg
->no_remote_charset
)
1796 case ANSI('@', '%'):
1797 compatibility(OTHER
);
1798 if (!term
->cfg
->no_remote_charset
)
1804 term
->termstate
= TOPLEVEL
; /* default */
1806 if (term
->esc_nargs
<= ARGS_MAX
) {
1807 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1808 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1809 term
->esc_args
[term
->esc_nargs
- 1] =
1810 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1812 term
->termstate
= SEEN_CSI
;
1813 } else if (c
== ';') {
1814 if (++term
->esc_nargs
<= ARGS_MAX
)
1815 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1816 term
->termstate
= SEEN_CSI
;
1817 } else if (c
< '@') {
1818 if (term
->esc_query
)
1819 term
->esc_query
= -1;
1821 term
->esc_query
= TRUE
;
1823 term
->esc_query
= c
;
1824 term
->termstate
= SEEN_CSI
;
1826 switch (ANSI(c
, term
->esc_query
)) {
1827 case 'A': /* move up N lines */
1828 move(term
, term
->curs
.x
,
1829 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1830 term
->seen_disp_event
= TRUE
;
1832 case 'e': /* move down N lines */
1833 compatibility(ANSI
);
1836 move(term
, term
->curs
.x
,
1837 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1838 term
->seen_disp_event
= TRUE
;
1840 case ANSI('c', '>'): /* report xterm version */
1841 compatibility(OTHER
);
1842 /* this reports xterm version 136 so that VIM can
1843 use the drag messages from the mouse reporting */
1845 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1847 case 'a': /* move right N cols */
1848 compatibility(ANSI
);
1851 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1853 term
->seen_disp_event
= TRUE
;
1855 case 'D': /* move left N cols */
1856 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1858 term
->seen_disp_event
= TRUE
;
1860 case 'E': /* move down N lines and CR */
1861 compatibility(ANSI
);
1863 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1864 term
->seen_disp_event
= TRUE
;
1866 case 'F': /* move up N lines and CR */
1867 compatibility(ANSI
);
1869 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1870 term
->seen_disp_event
= TRUE
;
1873 case '`': /* set horizontal posn */
1874 compatibility(ANSI
);
1875 move(term
, def(term
->esc_args
[0], 1) - 1,
1877 term
->seen_disp_event
= TRUE
;
1879 case 'd': /* set vertical posn */
1880 compatibility(ANSI
);
1881 move(term
, term
->curs
.x
,
1882 ((term
->dec_om ? term
->marg_t
: 0) +
1883 def(term
->esc_args
[0], 1) - 1),
1884 (term
->dec_om ?
2 : 0));
1885 term
->seen_disp_event
= TRUE
;
1888 case 'f': /* set horz and vert posns at once */
1889 if (term
->esc_nargs
< 2)
1890 term
->esc_args
[1] = ARG_DEFAULT
;
1891 move(term
, def(term
->esc_args
[1], 1) - 1,
1892 ((term
->dec_om ? term
->marg_t
: 0) +
1893 def(term
->esc_args
[0], 1) - 1),
1894 (term
->dec_om ?
2 : 0));
1895 term
->seen_disp_event
= TRUE
;
1897 case 'J': /* erase screen or parts of it */
1899 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1902 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1905 term
->seen_disp_event
= TRUE
;
1907 case 'K': /* erase line or parts of it */
1909 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1912 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1914 term
->seen_disp_event
= TRUE
;
1916 case 'L': /* insert lines */
1917 compatibility(VT102
);
1918 if (term
->curs
.y
<= term
->marg_b
)
1919 scroll(term
, term
->curs
.y
, term
->marg_b
,
1920 -def(term
->esc_args
[0], 1), FALSE
);
1922 term
->seen_disp_event
= TRUE
;
1924 case 'M': /* delete lines */
1925 compatibility(VT102
);
1926 if (term
->curs
.y
<= term
->marg_b
)
1927 scroll(term
, term
->curs
.y
, term
->marg_b
,
1928 def(term
->esc_args
[0], 1),
1931 term
->seen_disp_event
= TRUE
;
1933 case '@': /* insert chars */
1934 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1935 compatibility(VT102
);
1936 insch(term
, def(term
->esc_args
[0], 1));
1937 term
->seen_disp_event
= TRUE
;
1939 case 'P': /* delete chars */
1940 compatibility(VT102
);
1941 insch(term
, -def(term
->esc_args
[0], 1));
1942 term
->seen_disp_event
= TRUE
;
1944 case 'c': /* terminal type query */
1945 compatibility(VT100
);
1946 /* This is the response for a VT102 */
1948 ldisc_send(term
->ldisc
, term
->id_string
,
1949 strlen(term
->id_string
), 0);
1951 case 'n': /* cursor position query */
1953 if (term
->esc_args
[0] == 6) {
1955 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1957 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1958 } else if (term
->esc_args
[0] == 5) {
1959 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1963 case 'h': /* toggle modes to high */
1965 compatibility(VT100
);
1968 for (i
= 0; i
< term
->esc_nargs
; i
++)
1969 toggle_mode(term
, term
->esc_args
[i
],
1970 term
->esc_query
, TRUE
);
1975 compatibility(VT100
);
1977 if (term
->esc_nargs
!= 1) break;
1978 if (term
->esc_args
[0] == 5 && *term
->cfg
->printer
) {
1979 term
->printing
= TRUE
;
1980 term
->only_printing
= !term
->esc_query
;
1981 term
->print_state
= 0;
1982 term_print_setup(term
);
1983 } else if (term
->esc_args
[0] == 4 &&
1985 term_print_finish(term
);
1989 case 'l': /* toggle modes to low */
1991 compatibility(VT100
);
1994 for (i
= 0; i
< term
->esc_nargs
; i
++)
1995 toggle_mode(term
, term
->esc_args
[i
],
1996 term
->esc_query
, FALSE
);
1999 case 'g': /* clear tabs */
2000 compatibility(VT100
);
2001 if (term
->esc_nargs
== 1) {
2002 if (term
->esc_args
[0] == 0) {
2003 term
->tabs
[term
->curs
.x
] = FALSE
;
2004 } else if (term
->esc_args
[0] == 3) {
2006 for (i
= 0; i
< term
->cols
; i
++)
2007 term
->tabs
[i
] = FALSE
;
2011 case 'r': /* set scroll margins */
2012 compatibility(VT100
);
2013 if (term
->esc_nargs
<= 2) {
2015 top
= def(term
->esc_args
[0], 1) - 1;
2016 bot
= (term
->esc_nargs
<= 1
2017 || term
->esc_args
[1] == 0 ?
2019 def(term
->esc_args
[1], term
->rows
)) - 1;
2020 if (bot
>= term
->rows
)
2021 bot
= term
->rows
- 1;
2022 /* VTTEST Bug 9 - if region is less than 2 lines
2023 * don't change region.
2025 if (bot
- top
> 0) {
2030 * I used to think the cursor should be
2031 * placed at the top of the newly marginned
2032 * area. Apparently not: VMS TPU falls over
2035 * Well actually it should for
2038 term
->curs
.y
= (term
->dec_om ?
2041 term
->seen_disp_event
= TRUE
;
2045 case 'm': /* set graphics rendition */
2048 * A VT100 without the AVO only had one
2049 * attribute, either underline or
2050 * reverse video depending on the
2051 * cursor type, this was selected by
2055 * This is sometimes DIM, eg on the
2058 * This is sometimes INVIS various ANSI.
2060 * This like 22 disables BOLD, DIM and INVIS
2062 * The ANSI colours appear on any
2063 * terminal that has colour (obviously)
2064 * but the interaction between sgr0 and
2065 * the colours varies but is usually
2066 * related to the background colour
2067 * erase item. The interaction between
2068 * colour attributes and the mono ones
2069 * is also very implementation
2072 * The 39 and 49 attributes are likely
2073 * to be unimplemented.
2076 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2077 switch (def(term
->esc_args
[i
], 0)) {
2078 case 0: /* restore defaults */
2079 term
->curr_attr
= ATTR_DEFAULT
;
2081 case 1: /* enable bold */
2082 compatibility(VT100AVO
);
2083 term
->curr_attr
|= ATTR_BOLD
;
2085 case 21: /* (enable double underline) */
2086 compatibility(OTHER
);
2087 case 4: /* enable underline */
2088 compatibility(VT100AVO
);
2089 term
->curr_attr
|= ATTR_UNDER
;
2091 case 5: /* enable blink */
2092 compatibility(VT100AVO
);
2093 term
->curr_attr
|= ATTR_BLINK
;
2095 case 7: /* enable reverse video */
2096 term
->curr_attr
|= ATTR_REVERSE
;
2098 case 10: /* SCO acs off */
2099 compatibility(SCOANSI
);
2100 if (term
->cfg
->no_remote_charset
) break;
2101 term
->sco_acs
= 0; break;
2102 case 11: /* SCO acs on */
2103 compatibility(SCOANSI
);
2104 if (term
->cfg
->no_remote_charset
) break;
2105 term
->sco_acs
= 1; break;
2106 case 12: /* SCO acs on, |0x80 */
2107 compatibility(SCOANSI
);
2108 if (term
->cfg
->no_remote_charset
) break;
2109 term
->sco_acs
= 2; break;
2110 case 22: /* disable bold */
2111 compatibility2(OTHER
, VT220
);
2112 term
->curr_attr
&= ~ATTR_BOLD
;
2114 case 24: /* disable underline */
2115 compatibility2(OTHER
, VT220
);
2116 term
->curr_attr
&= ~ATTR_UNDER
;
2118 case 25: /* disable blink */
2119 compatibility2(OTHER
, VT220
);
2120 term
->curr_attr
&= ~ATTR_BLINK
;
2122 case 27: /* disable reverse video */
2123 compatibility2(OTHER
, VT220
);
2124 term
->curr_attr
&= ~ATTR_REVERSE
;
2135 term
->curr_attr
&= ~ATTR_FGMASK
;
2137 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2139 case 39: /* default-foreground */
2140 term
->curr_attr
&= ~ATTR_FGMASK
;
2141 term
->curr_attr
|= ATTR_DEFFG
;
2152 term
->curr_attr
&= ~ATTR_BGMASK
;
2154 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2156 case 49: /* default-background */
2157 term
->curr_attr
&= ~ATTR_BGMASK
;
2158 term
->curr_attr
|= ATTR_DEFBG
;
2163 term
->erase_char
= (' ' | ATTR_ASCII
|
2169 case 's': /* save cursor */
2170 save_cursor(term
, TRUE
);
2172 case 'u': /* restore cursor */
2173 save_cursor(term
, FALSE
);
2174 term
->seen_disp_event
= TRUE
;
2176 case 't': /* set page size - ie window height */
2178 * VT340/VT420 sequence DECSLPP, DEC only allows values
2179 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2180 * illegal values (eg first arg 1..9) for window changing
2183 if (term
->esc_nargs
<= 1
2184 && (term
->esc_args
[0] < 1 ||
2185 term
->esc_args
[0] >= 24)) {
2186 compatibility(VT340TEXT
);
2187 if (!term
->cfg
->no_remote_resize
)
2188 request_resize(term
->frontend
, term
->cols
,
2189 def(term
->esc_args
[0], 24));
2191 } else if (term
->esc_nargs
>= 1 &&
2192 term
->esc_args
[0] >= 1 &&
2193 term
->esc_args
[0] < 24) {
2194 compatibility(OTHER
);
2196 switch (term
->esc_args
[0]) {
2200 set_iconic(term
->frontend
, FALSE
);
2203 set_iconic(term
->frontend
, TRUE
);
2206 if (term
->esc_nargs
>= 3) {
2207 if (!term
->cfg
->no_remote_resize
)
2208 move_window(term
->frontend
,
2209 def(term
->esc_args
[1], 0),
2210 def(term
->esc_args
[2], 0));
2214 /* We should resize the window to a given
2215 * size in pixels here, but currently our
2216 * resizing code isn't healthy enough to
2221 set_zorder(term
->frontend
, TRUE
);
2224 /* move to bottom */
2225 set_zorder(term
->frontend
, FALSE
);
2228 refresh_window(term
->frontend
);
2231 if (term
->esc_nargs
>= 3) {
2232 if (!term
->cfg
->no_remote_resize
)
2233 request_resize(term
->frontend
,
2234 def(term
->esc_args
[2], term
->cfg
->width
),
2235 def(term
->esc_args
[1], term
->cfg
->height
));
2239 if (term
->esc_nargs
>= 2)
2240 set_zoomed(term
->frontend
,
2246 ldisc_send(term
->ldisc
,
2247 is_iconic(term
->frontend
) ?
2248 "\033[1t" : "\033[2t", 4, 0);
2252 get_window_pos(term
->frontend
, &x
, &y
);
2253 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2254 ldisc_send(term
->ldisc
, buf
, len
, 0);
2259 get_window_pixels(term
->frontend
, &x
, &y
);
2260 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2261 ldisc_send(term
->ldisc
, buf
, len
, 0);
2266 len
= sprintf(buf
, "\033[8;%d;%dt",
2267 term
->rows
, term
->cols
);
2268 ldisc_send(term
->ldisc
, buf
, len
, 0);
2273 * Hmmm. Strictly speaking we
2274 * should return `the size of the
2275 * screen in characters', but
2276 * that's not easy: (a) window
2277 * furniture being what it is it's
2278 * hard to compute, and (b) in
2279 * resize-font mode maximising the
2280 * window wouldn't change the
2281 * number of characters. *shrug*. I
2282 * think we'll ignore it for the
2283 * moment and see if anyone
2284 * complains, and then ask them
2285 * what they would like it to do.
2290 p
= get_window_title(term
->frontend
, TRUE
);
2292 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2293 ldisc_send(term
->ldisc
, p
, len
, 0);
2294 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2299 p
= get_window_title(term
->frontend
,FALSE
);
2301 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2302 ldisc_send(term
->ldisc
, p
, len
, 0);
2303 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2310 compatibility(SCOANSI
);
2311 scroll(term
, term
->marg_t
, term
->marg_b
,
2312 def(term
->esc_args
[0], 1), TRUE
);
2314 term
->wrapnext
= FALSE
;
2315 term
->seen_disp_event
= TRUE
;
2318 compatibility(SCOANSI
);
2319 scroll(term
, term
->marg_t
, term
->marg_b
,
2320 -def(term
->esc_args
[0], 1), TRUE
);
2322 term
->wrapnext
= FALSE
;
2323 term
->seen_disp_event
= TRUE
;
2325 case ANSI('|', '*'):
2326 /* VT420 sequence DECSNLS
2327 * Set number of lines on screen
2328 * VT420 uses VGA like hardware and can support any size in
2329 * reasonable range (24..49 AIUI) with no default specified.
2331 compatibility(VT420
);
2332 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2333 if (!term
->cfg
->no_remote_resize
)
2334 request_resize(term
->frontend
, term
->cols
,
2335 def(term
->esc_args
[0],
2336 term
->cfg
->height
));
2340 case ANSI('|', '$'):
2341 /* VT340/VT420 sequence DECSCPP
2342 * Set number of columns per page
2343 * Docs imply range is only 80 or 132, but I'll allow any.
2345 compatibility(VT340TEXT
);
2346 if (term
->esc_nargs
<= 1) {
2347 if (!term
->cfg
->no_remote_resize
)
2348 request_resize(term
->frontend
,
2349 def(term
->esc_args
[0],
2350 term
->cfg
->width
), term
->rows
);
2354 case 'X': /* write N spaces w/o moving cursor */
2355 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2356 compatibility(ANSIMIN
);
2358 int n
= def(term
->esc_args
[0], 1);
2360 unsigned long *p
= term
->cpos
;
2361 if (n
> term
->cols
- term
->curs
.x
)
2362 n
= term
->cols
- term
->curs
.x
;
2363 cursplus
= term
->curs
;
2365 check_selection(term
, term
->curs
, cursplus
);
2367 *p
++ = term
->erase_char
;
2368 term
->seen_disp_event
= TRUE
;
2371 case 'x': /* report terminal characteristics */
2372 compatibility(VT100
);
2375 int i
= def(term
->esc_args
[0], 0);
2376 if (i
== 0 || i
== 1) {
2377 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2379 ldisc_send(term
->ldisc
, buf
, 20, 0);
2383 case 'Z': /* BackTab for xterm */
2384 compatibility(OTHER
);
2386 int i
= def(term
->esc_args
[0], 1);
2387 pos old_curs
= term
->curs
;
2389 for(;i
>0 && term
->curs
.x
>0; i
--) {
2392 } while (term
->curs
.x
>0 &&
2393 !term
->tabs
[term
->curs
.x
]);
2396 check_selection(term
, old_curs
, term
->curs
);
2399 case ANSI('L', '='):
2400 compatibility(OTHER
);
2401 term
->use_bce
= (term
->esc_args
[0] <= 0);
2402 term
->erase_char
= ERASE_CHAR
;
2404 term
->erase_char
= (' ' | ATTR_ASCII
|
2406 (ATTR_FGMASK
| ATTR_BGMASK
)));
2408 case ANSI('E', '='):
2409 compatibility(OTHER
);
2410 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2412 case ANSI('p', '"'):
2414 * Allow the host to make this emulator a
2415 * 'perfect' VT102. This first appeared in
2416 * the VT220, but we do need to get back to
2417 * PuTTY mode so I won't check it.
2419 * The arg in 40..42,50 are a PuTTY extension.
2420 * The 2nd arg, 8bit vs 7bit is not checked.
2422 * Setting VT102 mode should also change
2423 * the Fkeys to generate PF* codes as a
2424 * real VT102 has no Fkeys. The VT220 does
2425 * this, F11..F13 become ESC,BS,LF other
2426 * Fkeys send nothing.
2428 * Note ESC c will NOT change this!
2431 switch (term
->esc_args
[0]) {
2433 term
->compatibility_level
&= ~TM_VTXXX
;
2434 term
->compatibility_level
|= TM_VT102
;
2437 term
->compatibility_level
&= ~TM_VTXXX
;
2438 term
->compatibility_level
|= TM_VT220
;
2442 if (term
->esc_args
[0] > 60 &&
2443 term
->esc_args
[0] < 70)
2444 term
->compatibility_level
|= TM_VTXXX
;
2448 term
->compatibility_level
&= TM_VTXXX
;
2451 term
->compatibility_level
= TM_PUTTY
;
2454 term
->compatibility_level
= TM_SCOANSI
;
2458 term
->compatibility_level
= TM_PUTTY
;
2464 /* Change the response to CSI c */
2465 if (term
->esc_args
[0] == 50) {
2468 strcpy(term
->id_string
, "\033[?");
2469 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2471 strcat(term
->id_string
, ";");
2472 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2473 strcat(term
->id_string
, lbuf
);
2475 strcat(term
->id_string
, "c");
2478 /* Is this a good idea ?
2479 * Well we should do a soft reset at this point ...
2481 if (!has_compat(VT420
) && has_compat(VT100
)) {
2482 if (!term
->cfg
->no_remote_resize
) {
2483 if (term
->reset_132
)
2484 request_resize(132, 24);
2486 request_resize(80, 24);
2494 term
->osc_w
= FALSE
;
2496 case 'P': /* Linux palette sequence */
2497 term
->termstate
= SEEN_OSC_P
;
2498 term
->osc_strlen
= 0;
2500 case 'R': /* Linux palette reset */
2501 palette_reset(term
->frontend
);
2502 term_invalidate(term
);
2503 term
->termstate
= TOPLEVEL
;
2505 case 'W': /* word-set */
2506 term
->termstate
= SEEN_OSC_W
;
2519 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2523 * Grotty hack to support xterm and DECterm title
2524 * sequences concurrently.
2526 if (term
->esc_args
[0] == 2) {
2527 term
->esc_args
[0] = 1;
2530 /* else fall through */
2532 term
->termstate
= OSC_STRING
;
2533 term
->osc_strlen
= 0;
2538 * This OSC stuff is EVIL. It takes just one character to get into
2539 * sysline mode and it's not initially obvious how to get out.
2540 * So I've added CR and LF as string aborts.
2541 * This shouldn't effect compatibility as I believe embedded
2542 * control characters are supposed to be interpreted (maybe?)
2543 * and they don't display anything useful anyway.
2547 if (c
== '\012' || c
== '\015') {
2548 term
->termstate
= TOPLEVEL
;
2549 } else if (c
== 0234 || c
== '\007') {
2551 * These characters terminate the string; ST and BEL
2552 * terminate the sequence and trigger instant
2553 * processing of it, whereas ESC goes back to SEEN_ESC
2554 * mode unless it is followed by \, in which case it is
2555 * synonymous with ST in the first place.
2558 term
->termstate
= TOPLEVEL
;
2559 } else if (c
== '\033')
2560 term
->termstate
= OSC_MAYBE_ST
;
2561 else if (term
->osc_strlen
< OSC_STR_MAX
)
2562 term
->osc_string
[term
->osc_strlen
++] = c
;
2566 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2568 if (c
>= '0' && c
<= '9')
2570 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2572 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2575 term
->termstate
= TOPLEVEL
;
2578 term
->osc_string
[term
->osc_strlen
++] = val
;
2579 if (term
->osc_strlen
>= 7) {
2580 palette_set(term
->frontend
, term
->osc_string
[0],
2581 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2582 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2583 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2584 term_invalidate(term
);
2585 term
->termstate
= TOPLEVEL
;
2601 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2604 term
->termstate
= OSC_STRING
;
2605 term
->osc_strlen
= 0;
2609 term
->termstate
= TOPLEVEL
;
2610 term
->seen_disp_event
= TRUE
;
2613 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2616 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2619 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2622 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2625 * From the VT100 Manual
2626 * NOTE: The special graphics characters in the VT100
2627 * are different from those in the VT52
2629 * From VT102 manual:
2630 * 137 _ Blank - Same
2631 * 140 ` Reserved - Humm.
2632 * 141 a Solid rectangle - Similar
2633 * 142 b 1/ - Top half of fraction for the
2634 * 143 c 3/ - subscript numbers below.
2637 * 146 f Degrees - Same
2638 * 147 g Plus or minus - Same
2640 * 151 i Ellipsis (dots)
2643 * 154 l Bar at scan 0
2644 * 155 m Bar at scan 1
2645 * 156 n Bar at scan 2
2646 * 157 o Bar at scan 3 - Similar
2647 * 160 p Bar at scan 4 - Similar
2648 * 161 q Bar at scan 5 - Similar
2649 * 162 r Bar at scan 6 - Same
2650 * 163 s Bar at scan 7 - Similar
2665 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2668 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2671 move(term
, 0, 0, 0);
2674 if (term
->curs
.y
== 0)
2675 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2676 else if (term
->curs
.y
> 0)
2679 term
->wrapnext
= FALSE
;
2682 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2686 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2690 /* XXX Print cursor line */
2693 /* XXX Start controller mode */
2696 /* XXX Stop controller mode */
2700 term
->termstate
= VT52_Y1
;
2704 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2707 term
->app_keypad_keys
= TRUE
;
2710 term
->app_keypad_keys
= FALSE
;
2713 /* XXX This should switch to VT100 mode not current or default
2714 * VT mode. But this will only have effect in a VT220+
2717 term
->vt52_mode
= FALSE
;
2718 term
->blink_is_real
= term
->cfg
->blinktext
;
2722 /* XXX Enter auto print mode */
2725 /* XXX Exit auto print mode */
2728 /* XXX Print screen */
2734 /* compatibility(ATARI) */
2735 move(term
, 0, 0, 0);
2736 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2740 /* compatibility(ATARI) */
2741 if (term
->curs
.y
<= term
->marg_b
)
2742 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2745 /* compatibility(ATARI) */
2746 if (term
->curs
.y
<= term
->marg_b
)
2747 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2750 /* compatibility(ATARI) */
2751 term
->termstate
= VT52_FG
;
2754 /* compatibility(ATARI) */
2755 term
->termstate
= VT52_BG
;
2758 /* compatibility(ATARI) */
2759 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2763 /* compatibility(ATARI) */
2764 term
->cursor_on
= TRUE
;
2767 /* compatibility(ATARI) */
2768 term
->cursor_on
= FALSE
;
2770 /* case 'j': Save cursor position - broken on ST */
2771 /* case 'k': Restore cursor position */
2773 /* compatibility(ATARI) */
2774 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2776 term
->wrapnext
= FALSE
;
2780 /* compatibility(ATARI) */
2781 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2784 /* compatibility(ATARI) */
2785 term
->curr_attr
|= ATTR_REVERSE
;
2788 /* compatibility(ATARI) */
2789 term
->curr_attr
&= ~ATTR_REVERSE
;
2791 case 'v': /* wrap Autowrap on - Wyse style */
2792 /* compatibility(ATARI) */
2795 case 'w': /* Autowrap off */
2796 /* compatibility(ATARI) */
2801 /* compatibility(OTHER) */
2802 term
->vt52_bold
= FALSE
;
2803 term
->curr_attr
= ATTR_DEFAULT
;
2805 term
->erase_char
= (' ' | ATTR_ASCII
|
2807 (ATTR_FGMASK
| ATTR_BGMASK
)));
2810 /* compatibility(VI50) */
2811 term
->curr_attr
|= ATTR_UNDER
;
2814 /* compatibility(VI50) */
2815 term
->curr_attr
&= ~ATTR_UNDER
;
2818 /* compatibility(VI50) */
2819 term
->vt52_bold
= TRUE
;
2820 term
->curr_attr
|= ATTR_BOLD
;
2823 /* compatibility(VI50) */
2824 term
->vt52_bold
= FALSE
;
2825 term
->curr_attr
&= ~ATTR_BOLD
;
2831 term
->termstate
= VT52_Y2
;
2832 move(term
, term
->curs
.x
, c
- ' ', 0);
2835 term
->termstate
= TOPLEVEL
;
2836 move(term
, c
- ' ', term
->curs
.y
, 0);
2841 term
->termstate
= TOPLEVEL
;
2842 term
->curr_attr
&= ~ATTR_FGMASK
;
2843 term
->curr_attr
&= ~ATTR_BOLD
;
2844 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2845 if ((c
& 0x8) || term
->vt52_bold
)
2846 term
->curr_attr
|= ATTR_BOLD
;
2849 term
->erase_char
= (' ' | ATTR_ASCII
|
2851 (ATTR_FGMASK
| ATTR_BGMASK
)));
2854 term
->termstate
= TOPLEVEL
;
2855 term
->curr_attr
&= ~ATTR_BGMASK
;
2856 term
->curr_attr
&= ~ATTR_BLINK
;
2857 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2859 /* Note: bold background */
2861 term
->curr_attr
|= ATTR_BLINK
;
2864 term
->erase_char
= (' ' | ATTR_ASCII
|
2866 (ATTR_FGMASK
| ATTR_BGMASK
)));
2869 default: break; /* placate gcc warning about enum use */
2871 if (term
->selstate
!= NO_SELECTION
) {
2872 pos cursplus
= term
->curs
;
2874 check_selection(term
, term
->curs
, cursplus
);
2878 term_print_flush(term
);
2883 * Compare two lines to determine whether they are sufficiently
2884 * alike to scroll-optimise one to the other. Return the degree of
2887 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2891 for (i
= n
= 0; i
< term
->cols
; i
++)
2892 n
+= (*a
++ == *b
++);
2898 * Given a context, update the window. Out of paranoia, we don't
2899 * allow WM_PAINT responses to do scrolling optimisations.
2901 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2903 int i
, j
, our_curs_y
;
2904 unsigned long rv
, cursor
;
2907 long cursor_background
= ERASE_CHAR
;
2908 unsigned long ticks
;
2911 * Check the visual bell state.
2913 if (term
->in_vbell
) {
2914 ticks
= GETTICKCOUNT();
2915 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2916 term
->in_vbell
= FALSE
;
2919 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2922 * screen array, disptop, scrtop,
2924 * cfg.blinkpc, blink_is_real, tblinker,
2925 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2928 /* Has the cursor position or type changed ? */
2929 if (term
->cursor_on
) {
2930 if (term
->has_focus
) {
2931 if (term
->blinker
|| !term
->cfg
->blink_cur
)
2932 cursor
= TATTR_ACTCURS
;
2936 cursor
= TATTR_PASCURS
;
2938 cursor
|= TATTR_RIGHTCURS
;
2941 our_curs_y
= term
->curs
.y
- term
->disptop
;
2943 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2945 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2947 if (term
->dispcurs
> term
->disptext
&&
2948 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2949 term
->dispcurs
[-1] |= ATTR_INVALID
;
2950 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2951 term
->dispcurs
[1] |= ATTR_INVALID
;
2952 *term
->dispcurs
|= ATTR_INVALID
;
2955 term
->dispcurs
= NULL
;
2957 /* The normal screen data */
2958 for (i
= 0; i
< term
->rows
; i
++) {
2959 unsigned long *ldata
;
2961 int idx
, dirty_line
, dirty_run
, selected
;
2962 unsigned long attr
= 0;
2963 int updated_line
= 0;
2966 int last_run_dirty
= 0;
2968 scrpos
.y
= i
+ term
->disptop
;
2969 ldata
= lineptr(scrpos
.y
);
2970 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2972 idx
= i
* (term
->cols
+ 1);
2973 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2974 term
->disptext
[idx
+ term
->cols
]);
2975 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2977 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2978 unsigned long tattr
, tchar
;
2979 unsigned long *d
= ldata
+ j
;
2983 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2984 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2985 switch (tchar
& CSET_MASK
) {
2987 tchar
= unitab_line
[tchar
& 0xFF];
2990 tchar
= unitab_xterm
[tchar
& 0xFF];
2993 tchar
= unitab_scoacs
[tchar
&0xFF];
2996 tattr
|= (tchar
& CSET_MASK
);
2998 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3001 /* Video reversing things */
3002 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3003 if (term
->seltype
== LEXICOGRAPHIC
)
3004 selected
= (posle(term
->selstart
, scrpos
) &&
3005 poslt(scrpos
, term
->selend
));
3007 selected
= (posPle(term
->selstart
, scrpos
) &&
3008 posPlt(scrpos
, term
->selend
));
3012 ^ (selected ? ATTR_REVERSE
: 0));
3014 /* 'Real' blinking ? */
3015 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3016 if (term
->has_focus
&& term
->tblinker
) {
3018 tattr
&= ~CSET_MASK
;
3021 tattr
&= ~ATTR_BLINK
;
3025 * Check the font we'll _probably_ be using to see if
3026 * the character is wide when we don't want it to be.
3028 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3029 if ((tattr
& ATTR_WIDE
) == 0 &&
3030 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3031 tattr
|= ATTR_NARROW
;
3032 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3033 tattr
|= ATTR_NARROW
;
3035 /* Cursor here ? Save the 'background' */
3036 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3037 cursor_background
= tattr
| tchar
;
3038 term
->dispcurs
= term
->disptext
+ idx
;
3041 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3044 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3045 j
- start
>= sizeof(ch
));
3047 /* Special hack for VT100 Linedraw glyphs */
3048 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3049 && tchar
<= 0xBD) break_run
= TRUE
;
3051 if (!dbcs_screenfont
&& !dirty_line
) {
3052 if ((tchar
| tattr
) == term
->disptext
[idx
])
3054 else if (!dirty_run
&& ccount
== 1)
3059 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3060 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3066 if (dbcs_screenfont
)
3067 last_run_dirty
= dirty_run
;
3068 dirty_run
= dirty_line
;
3071 if ((tchar
| tattr
) != term
->disptext
[idx
])
3073 ch
[ccount
++] = (char) tchar
;
3074 term
->disptext
[idx
] = tchar
| tattr
;
3076 /* If it's a wide char step along to the next one. */
3077 if (tattr
& ATTR_WIDE
) {
3078 if (++j
< term
->cols
) {
3081 /* Cursor is here ? Ouch! */
3082 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3083 cursor_background
= *d
;
3084 term
->dispcurs
= term
->disptext
+ idx
;
3086 if (term
->disptext
[idx
] != *d
)
3088 term
->disptext
[idx
] = *d
;
3092 if (dirty_run
&& ccount
> 0) {
3093 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3097 /* Cursor on this line ? (and changed) */
3098 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3099 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3100 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3101 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3102 term
->curstype
= cursor
;
3108 * Flick the switch that says if blinking things should be shown or hidden.
3111 void term_blink(Terminal
*term
, int flg
)
3113 long now
, blink_diff
;
3115 now
= GETTICKCOUNT();
3116 blink_diff
= now
- term
->last_tblink
;
3118 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3119 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3120 term
->last_tblink
= now
;
3121 term
->tblinker
= !term
->tblinker
;
3126 term
->last_blink
= now
;
3130 blink_diff
= now
- term
->last_blink
;
3132 /* Make sure the cursor blinks no faster than system blink rate */
3133 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3136 term
->last_blink
= now
;
3137 term
->blinker
= !term
->blinker
;
3141 * Invalidate the whole screen so it will be repainted in full.
3143 void term_invalidate(Terminal
*term
)
3147 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3148 term
->disptext
[i
] = ATTR_INVALID
;
3152 * Paint the window in response to a WM_PAINT message.
3154 void term_paint(Terminal
*term
, Context ctx
,
3155 int left
, int top
, int right
, int bottom
, int immediately
)
3158 if (left
< 0) left
= 0;
3159 if (top
< 0) top
= 0;
3160 if (right
>= term
->cols
) right
= term
->cols
-1;
3161 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3163 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3164 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3165 LATTR_MODE
) == LATTR_NORM
)
3166 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3167 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3169 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3170 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3173 /* This should happen soon enough, also for some reason it sometimes
3174 * fails to actually do anything when re-sizing ... painting the wrong
3178 do_paint (term
, ctx
, FALSE
);
3182 * Attempt to scroll the scrollback. The second parameter gives the
3183 * position we want to scroll to; the first is +1 to denote that
3184 * this position is relative to the beginning of the scrollback, -1
3185 * to denote it is relative to the end, and 0 to denote that it is
3186 * relative to the current position.
3188 void term_scroll(Terminal
*term
, int rel
, int where
)
3190 int sbtop
= -count234(term
->scrollback
);
3191 #ifdef OPTIMISE_SCROLL
3192 int olddisptop
= term
->disptop
;
3194 #endif /* OPTIMISE_SCROLL */
3196 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3197 if (term
->disptop
< sbtop
)
3198 term
->disptop
= sbtop
;
3199 if (term
->disptop
> 0)
3202 #ifdef OPTIMISE_SCROLL
3203 shift
= (term
->disptop
- olddisptop
);
3204 if (shift
< term
->rows
&& shift
> -term
->rows
)
3205 scroll_display(term
, 0, term
->rows
- 1, shift
);
3206 #endif /* OPTIMISE_SCROLL */
3210 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3213 wchar_t *wbptr
; /* where next char goes within workbuf */
3215 int wblen
= 0; /* workbuf len */
3216 int buflen
; /* amount of memory allocated to workbuf */
3218 buflen
= 5120; /* Default size */
3219 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3220 wbptr
= workbuf
; /* start filling here */
3221 old_top_x
= top
.x
; /* needed for rect==1 */
3223 while (poslt(top
, bottom
)) {
3225 unsigned long *ldata
= lineptr(top
.y
);
3229 * nlpos will point at the maximum position on this line we
3230 * should copy up to. So we start it at the end of the
3234 nlpos
.x
= term
->cols
;
3237 * ... move it backwards if there's unused space at the end
3238 * of the line (and also set `nl' if this is the case,
3239 * because in normal selection mode this means we need a
3240 * newline at the end)...
3242 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3243 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3244 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3245 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3246 && poslt(top
, nlpos
))
3248 if (poslt(nlpos
, bottom
))
3253 * ... and then clip it to the terminal x coordinate if
3254 * we're doing rectangular selection. (In this case we
3255 * still did the above, so that copying e.g. the right-hand
3256 * column from a table doesn't fill with spaces on the
3260 if (nlpos
.x
> bottom
.x
)
3262 nl
= (top
.y
< bottom
.y
);
3265 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3268 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3270 wchar_t cbuf
[16], *p
;
3271 int uc
= (ldata
[top
.x
] & 0xFFFF);
3274 if (uc
== UCSWIDE
) {
3279 switch (uc
& CSET_MASK
) {
3281 if (!term
->cfg
->rawcnp
) {
3282 uc
= unitab_xterm
[uc
& 0xFF];
3286 uc
= unitab_line
[uc
& 0xFF];
3289 uc
= unitab_scoacs
[uc
&0xFF];
3292 switch (uc
& CSET_MASK
) {
3294 uc
= unitab_font
[uc
& 0xFF];
3297 uc
= unitab_oemcp
[uc
& 0xFF];
3301 set
= (uc
& CSET_MASK
);
3302 c
= (uc
& CHAR_MASK
);
3306 if (DIRECT_FONT(uc
)) {
3307 if (c
>= ' ' && c
!= 0x7F) {
3311 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3313 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3314 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3318 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3322 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3329 for (p
= cbuf
; *p
; p
++) {
3330 /* Enough overhead for trailing NL and nul */
3331 if (wblen
>= buflen
- 16) {
3334 sizeof(wchar_t) * (buflen
+= 100));
3335 wbptr
= workbuf
+ wblen
;
3344 for (i
= 0; i
< sel_nl_sz
; i
++) {
3346 *wbptr
++ = sel_nl
[i
];
3350 top
.x
= rect ? old_top_x
: 0;
3352 #if SELECTION_NUL_TERMINATED
3356 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3357 if (buflen
> 0) /* indicates we allocated this buffer */
3361 void term_copyall(Terminal
*term
)
3364 top
.y
= -count234(term
->scrollback
);
3366 clipme(term
, top
, term
->curs
, 0);
3370 * The wordness array is mainly for deciding the disposition of the
3371 * US-ASCII characters.
3373 static int wordtype(Terminal
*term
, int uc
)
3376 int start
, end
, ctype
;
3378 static const struct ucsword ucs_words
[] = {
3384 0x037e, 0x037e, 1}, /* Greek question mark */
3386 0x0387, 0x0387, 1}, /* Greek ano teleia */
3388 0x055a, 0x055f, 1}, /* Armenian punctuation */
3390 0x0589, 0x0589, 1}, /* Armenian full stop */
3392 0x0700, 0x070d, 1}, /* Syriac punctuation */
3394 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3396 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3398 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3400 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3402 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3404 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3406 0x2000, 0x200a, 0}, /* Various spaces */
3408 0x2070, 0x207f, 2}, /* superscript */
3410 0x2080, 0x208f, 2}, /* subscript */
3412 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3414 0x3000, 0x3000, 0}, /* ideographic space */
3416 0x3001, 0x3020, 1}, /* ideographic punctuation */
3418 0x303f, 0x309f, 3}, /* Hiragana */
3420 0x30a0, 0x30ff, 3}, /* Katakana */
3422 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3424 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3426 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3428 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3430 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3432 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3434 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3436 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3438 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3442 const struct ucsword
*wptr
;
3444 uc
&= (CSET_MASK
| CHAR_MASK
);
3446 switch (uc
& CSET_MASK
) {
3448 uc
= unitab_xterm
[uc
& 0xFF];
3451 uc
= unitab_line
[uc
& 0xFF];
3454 uc
= unitab_scoacs
[uc
&0xFF];
3457 switch (uc
& CSET_MASK
) {
3459 uc
= unitab_font
[uc
& 0xFF];
3462 uc
= unitab_oemcp
[uc
& 0xFF];
3466 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3467 * fail as there's such a thing as a double width space. :-(
3469 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3473 return term
->wordness
[uc
];
3475 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3476 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3484 * Spread the selection outwards according to the selection mode.
3486 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3488 unsigned long *ldata
;
3490 int topy
= -count234(term
->scrollback
);
3492 ldata
= lineptr(p
.y
);
3494 switch (term
->selmode
) {
3497 * In this mode, every character is a separate unit, except
3498 * for runs of spaces at the end of a non-wrapping line.
3500 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3501 unsigned long *q
= ldata
+ term
->cols
;
3502 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3504 if (q
== ldata
+ term
->cols
)
3506 if (p
.x
>= q
- ldata
)
3507 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3512 * In this mode, the units are maximal runs of characters
3513 * whose `wordness' has the same value.
3515 wvalue
= wordtype(term
, ldata
[p
.x
]);
3518 if (p
.x
< term
->cols
-1) {
3519 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3524 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3525 unsigned long *ldata2
;
3526 ldata2
= lineptr(p
.y
+1);
3527 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3540 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3545 unsigned long *ldata2
;
3548 ldata2
= lineptr(p
.y
-1);
3549 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3550 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3562 * In this mode, every line is a unit.
3564 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3570 static void sel_spread(Terminal
*term
)
3572 if (term
->seltype
== LEXICOGRAPHIC
) {
3573 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3574 decpos(term
->selend
);
3575 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3576 incpos(term
->selend
);
3580 void term_do_paste(Terminal
*term
)
3585 get_clip(term
->frontend
, &data
, &len
);
3586 if (data
&& len
> 0) {
3589 term_seen_key_event(term
); /* pasted data counts */
3591 if (term
->paste_buffer
)
3592 sfree(term
->paste_buffer
);
3593 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3594 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3597 while (p
< data
+ len
) {
3598 while (p
< data
+ len
&&
3599 !(p
<= data
+ len
- sel_nl_sz
&&
3600 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3605 for (i
= 0; i
< p
- q
; i
++) {
3606 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3610 if (p
<= data
+ len
- sel_nl_sz
&&
3611 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3612 term
->paste_buffer
[term
->paste_len
++] = '\015';
3618 /* Assume a small paste will be OK in one go. */
3619 if (term
->paste_len
< 256) {
3621 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3622 if (term
->paste_buffer
)
3623 sfree(term
->paste_buffer
);
3624 term
->paste_buffer
= 0;
3625 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3628 get_clip(term
->frontend
, NULL
, NULL
);
3631 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3632 int shift
, int ctrl
, int alt
)
3635 unsigned long *ldata
;
3636 int raw_mouse
= (term
->xterm_mouse
&&
3637 !term
->cfg
->no_mouse_rep
&&
3638 !(term
->cfg
->mouse_override
&& shift
));
3639 int default_seltype
;
3643 if (a
== MA_DRAG
&& !raw_mouse
)
3644 term_scroll(term
, 0, -1);
3646 if (y
>= term
->rows
) {
3648 if (a
== MA_DRAG
&& !raw_mouse
)
3649 term_scroll(term
, 0, +1);
3658 if (x
>= term
->cols
)
3661 selpoint
.y
= y
+ term
->disptop
;
3663 ldata
= lineptr(selpoint
.y
);
3664 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3668 int encstate
= 0, r
, c
;
3675 encstate
= 0x20; /* left button down */
3686 case MBT_WHEEL_DOWN
:
3689 default: break; /* placate gcc warning about enum use */
3693 if (term
->xterm_mouse
== 1)
3699 term
->mouse_is_down
= 0;
3702 if (term
->mouse_is_down
== b
)
3704 term
->mouse_is_down
= b
;
3706 default: break; /* placate gcc warning about enum use */
3715 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3716 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3721 b
= translate_button(term
->frontend
, b
);
3724 * Set the selection type (rectangular or normal) at the start
3725 * of a selection attempt, from the state of Alt.
3727 if (!alt
^ !term
->cfg
->rect_select
)
3728 default_seltype
= RECTANGULAR
;
3730 default_seltype
= LEXICOGRAPHIC
;
3732 if (term
->selstate
== NO_SELECTION
) {
3733 term
->seltype
= default_seltype
;
3736 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3738 term
->selstate
= ABOUT_TO
;
3739 term
->seltype
= default_seltype
;
3740 term
->selanchor
= selpoint
;
3741 term
->selmode
= SM_CHAR
;
3742 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3744 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3745 term
->selstate
= DRAGGING
;
3746 term
->selstart
= term
->selanchor
= selpoint
;
3747 term
->selend
= term
->selstart
;
3748 incpos(term
->selend
);
3750 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3751 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3752 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3754 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3755 if (term
->seltype
== LEXICOGRAPHIC
) {
3757 * For normal selection, we extend by moving
3758 * whichever end of the current selection is closer
3761 if (posdiff(selpoint
, term
->selstart
) <
3762 posdiff(term
->selend
, term
->selstart
) / 2) {
3763 term
->selanchor
= term
->selend
;
3764 decpos(term
->selanchor
);
3766 term
->selanchor
= term
->selstart
;
3770 * For rectangular selection, we have a choice of
3771 * _four_ places to put selanchor and selpoint: the
3772 * four corners of the selection.
3774 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3775 term
->selanchor
.x
= term
->selend
.x
-1;
3777 term
->selanchor
.x
= term
->selstart
.x
;
3779 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3780 term
->selanchor
.y
= term
->selend
.y
;
3782 term
->selanchor
.y
= term
->selstart
.y
;
3784 term
->selstate
= DRAGGING
;
3786 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3787 term
->selanchor
= selpoint
;
3788 term
->selstate
= DRAGGING
;
3789 if (term
->seltype
== LEXICOGRAPHIC
) {
3791 * For normal selection, we set (selstart,selend) to
3792 * (selpoint,selanchor) in some order.
3794 if (poslt(selpoint
, term
->selanchor
)) {
3795 term
->selstart
= selpoint
;
3796 term
->selend
= term
->selanchor
;
3797 incpos(term
->selend
);
3799 term
->selstart
= term
->selanchor
;
3800 term
->selend
= selpoint
;
3801 incpos(term
->selend
);
3805 * For rectangular selection, we may need to
3806 * interchange x and y coordinates (if the user has
3807 * dragged in the -x and +y directions, or vice versa).
3809 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3810 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3811 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3812 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3815 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3816 if (term
->selstate
== DRAGGING
) {
3818 * We've completed a selection. We now transfer the
3819 * data to the clipboard.
3821 clipme(term
, term
->selstart
, term
->selend
,
3822 (term
->seltype
== RECTANGULAR
));
3823 term
->selstate
= SELECTED
;
3825 term
->selstate
= NO_SELECTION
;
3826 } else if (b
== MBT_PASTE
3828 #if MULTICLICK_ONLY_EVENT
3829 || a
== MA_2CLK
|| a
== MA_3CLK
3832 request_paste(term
->frontend
);
3838 void term_nopaste(Terminal
*term
)
3840 if (term
->paste_len
== 0)
3842 sfree(term
->paste_buffer
);
3843 term
->paste_buffer
= NULL
;
3844 term
->paste_len
= 0;
3847 int term_paste_pending(Terminal
*term
)
3849 return term
->paste_len
!= 0;
3852 void term_paste(Terminal
*term
)
3854 long now
, paste_diff
;
3856 if (term
->paste_len
== 0)
3859 /* Don't wait forever to paste */
3860 if (term
->paste_hold
) {
3861 now
= GETTICKCOUNT();
3862 paste_diff
= now
- term
->last_paste
;
3863 if (paste_diff
>= 0 && paste_diff
< 450)
3866 term
->paste_hold
= 0;
3868 while (term
->paste_pos
< term
->paste_len
) {
3870 while (n
+ term
->paste_pos
< term
->paste_len
) {
3871 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3875 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3876 term
->paste_pos
+= n
;
3878 if (term
->paste_pos
< term
->paste_len
) {
3879 term
->paste_hold
= 1;
3883 sfree(term
->paste_buffer
);
3884 term
->paste_buffer
= NULL
;
3885 term
->paste_len
= 0;
3888 static void deselect(Terminal
*term
)
3890 term
->selstate
= NO_SELECTION
;
3891 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3894 void term_deselect(Terminal
*term
)
3900 int term_ldisc(Terminal
*term
, int option
)
3902 if (option
== LD_ECHO
)
3903 return term
->term_echoing
;
3904 if (option
== LD_EDIT
)
3905 return term
->term_editing
;
3910 * from_backend(), to get data from the backend for the terminal.
3912 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3914 Terminal
*term
= (Terminal
*)vterm
;
3918 bufchain_add(&term
->inbuf
, data
, len
);
3921 * term_out() always completely empties inbuf. Therefore,
3922 * there's no reason at all to return anything other than zero
3923 * from this function, because there _can't_ be a question of
3924 * the remote side needing to wait until term_out() has cleared
3927 * This is a slightly suboptimal way to deal with SSH2 - in
3928 * principle, the window mechanism would allow us to continue
3929 * to accept data on forwarded ports and X connections even
3930 * while the terminal processing was going slowly - but we
3931 * can't do the 100% right thing without moving the terminal
3932 * processing into a separate thread, and that might hurt
3933 * portability. So we manage stdout buffering the old SSH1 way:
3934 * if the terminal processing goes slowly, the whole SSH
3935 * connection stops accepting data until it's ready.
3937 * In practice, I can't imagine this causing serious trouble.
3942 void term_provide_logctx(Terminal
*term
, void *logctx
)
3944 term
->logctx
= logctx
;