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
);
1545 extern int wcwidth(wchar_t ucs
);
1550 width
= wcwidth((wchar_t) c
);
1553 *term
->cpos
++ = c
| term
->curr_attr
;
1554 if (++term
->curs
.x
== term
->cols
) {
1555 *term
->cpos
|= LATTR_WRAPPED
;
1556 if (term
->curs
.y
== term
->marg_b
)
1557 scroll(term
, term
->marg_t
, term
->marg_b
,
1559 else if (term
->curs
.y
< term
->rows
- 1)
1564 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1567 *term
->cpos
++ = c
| term
->curr_attr
;
1574 if (term
->curs
.x
== term
->cols
) {
1577 term
->wrapnext
= TRUE
;
1578 if (term
->wrap
&& term
->vt52_mode
) {
1579 term
->cpos
[1] |= LATTR_WRAPPED
;
1580 if (term
->curs
.y
== term
->marg_b
)
1581 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1582 else if (term
->curs
.y
< term
->rows
- 1)
1586 term
->wrapnext
= FALSE
;
1589 term
->seen_disp_event
= 1;
1594 * This state is virtually identical to SEEN_ESC, with the
1595 * exception that we have an OSC sequence in the pipeline,
1596 * and _if_ we see a backslash, we process it.
1600 term
->termstate
= TOPLEVEL
;
1603 /* else fall through */
1605 if (c
>= ' ' && c
<= '/') {
1606 if (term
->esc_query
)
1607 term
->esc_query
= -1;
1609 term
->esc_query
= c
;
1612 term
->termstate
= TOPLEVEL
;
1613 switch (ANSI(c
, term
->esc_query
)) {
1614 case '[': /* enter CSI mode */
1615 term
->termstate
= SEEN_CSI
;
1616 term
->esc_nargs
= 1;
1617 term
->esc_args
[0] = ARG_DEFAULT
;
1618 term
->esc_query
= FALSE
;
1620 case ']': /* xterm escape sequences */
1621 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1622 compatibility(OTHER
);
1623 term
->termstate
= SEEN_OSC
;
1624 term
->esc_args
[0] = 0;
1626 case '7': /* save cursor */
1627 compatibility(VT100
);
1628 save_cursor(term
, TRUE
);
1630 case '8': /* restore cursor */
1631 compatibility(VT100
);
1632 save_cursor(term
, FALSE
);
1633 term
->seen_disp_event
= TRUE
;
1636 compatibility(VT100
);
1637 term
->app_keypad_keys
= TRUE
;
1640 compatibility(VT100
);
1641 term
->app_keypad_keys
= FALSE
;
1643 case 'D': /* exactly equivalent to LF */
1644 compatibility(VT100
);
1645 if (term
->curs
.y
== term
->marg_b
)
1646 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1647 else if (term
->curs
.y
< term
->rows
- 1)
1650 term
->wrapnext
= FALSE
;
1651 term
->seen_disp_event
= TRUE
;
1653 case 'E': /* exactly equivalent to CR-LF */
1654 compatibility(VT100
);
1656 if (term
->curs
.y
== term
->marg_b
)
1657 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1658 else if (term
->curs
.y
< term
->rows
- 1)
1661 term
->wrapnext
= FALSE
;
1662 term
->seen_disp_event
= TRUE
;
1664 case 'M': /* reverse index - backwards LF */
1665 compatibility(VT100
);
1666 if (term
->curs
.y
== term
->marg_t
)
1667 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1668 else if (term
->curs
.y
> 0)
1671 term
->wrapnext
= FALSE
;
1672 term
->seen_disp_event
= TRUE
;
1674 case 'Z': /* terminal type query */
1675 compatibility(VT100
);
1677 ldisc_send(term
->ldisc
, term
->id_string
,
1678 strlen(term
->id_string
), 0);
1680 case 'c': /* restore power-on settings */
1681 compatibility(VT100
);
1683 if (term
->ldisc
) /* cause ldisc to notice changes */
1684 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1685 if (term
->reset_132
) {
1686 if (!term
->cfg
->no_remote_resize
)
1687 request_resize(term
->frontend
, 80, term
->rows
);
1688 term
->reset_132
= 0;
1692 term
->seen_disp_event
= TRUE
;
1694 case 'H': /* set a tab */
1695 compatibility(VT100
);
1696 term
->tabs
[term
->curs
.x
] = TRUE
;
1699 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1700 compatibility(VT100
);
1702 unsigned long *ldata
;
1706 for (i
= 0; i
< term
->rows
; i
++) {
1708 for (j
= 0; j
< term
->cols
; j
++)
1709 ldata
[j
] = ATTR_DEFAULT
| 'E';
1710 ldata
[term
->cols
] = 0;
1713 term
->seen_disp_event
= TRUE
;
1714 scrtop
.x
= scrtop
.y
= 0;
1716 scrbot
.y
= term
->rows
;
1717 check_selection(term
, scrtop
, scrbot
);
1721 case ANSI('3', '#'):
1722 case ANSI('4', '#'):
1723 case ANSI('5', '#'):
1724 case ANSI('6', '#'):
1725 compatibility(VT100
);
1727 unsigned long nlattr
;
1728 unsigned long *ldata
;
1729 switch (ANSI(c
, term
->esc_query
)) {
1730 case ANSI('3', '#'):
1733 case ANSI('4', '#'):
1736 case ANSI('5', '#'):
1737 nlattr
= LATTR_NORM
;
1739 default: /* spiritually case ANSI('6', '#'): */
1740 nlattr
= LATTR_WIDE
;
1743 ldata
= lineptr(term
->curs
.y
);
1744 ldata
[term
->cols
] &= ~LATTR_MODE
;
1745 ldata
[term
->cols
] |= nlattr
;
1749 case ANSI('A', '('):
1750 compatibility(VT100
);
1751 if (!term
->cfg
->no_remote_charset
)
1752 term
->cset_attr
[0] = ATTR_GBCHR
;
1754 case ANSI('B', '('):
1755 compatibility(VT100
);
1756 if (!term
->cfg
->no_remote_charset
)
1757 term
->cset_attr
[0] = ATTR_ASCII
;
1759 case ANSI('0', '('):
1760 compatibility(VT100
);
1761 if (!term
->cfg
->no_remote_charset
)
1762 term
->cset_attr
[0] = ATTR_LINEDRW
;
1764 case ANSI('U', '('):
1765 compatibility(OTHER
);
1766 if (!term
->cfg
->no_remote_charset
)
1767 term
->cset_attr
[0] = ATTR_SCOACS
;
1770 case ANSI('A', ')'):
1771 compatibility(VT100
);
1772 if (!term
->cfg
->no_remote_charset
)
1773 term
->cset_attr
[1] = ATTR_GBCHR
;
1775 case ANSI('B', ')'):
1776 compatibility(VT100
);
1777 if (!term
->cfg
->no_remote_charset
)
1778 term
->cset_attr
[1] = ATTR_ASCII
;
1780 case ANSI('0', ')'):
1781 compatibility(VT100
);
1782 if (!term
->cfg
->no_remote_charset
)
1783 term
->cset_attr
[1] = ATTR_LINEDRW
;
1785 case ANSI('U', ')'):
1786 compatibility(OTHER
);
1787 if (!term
->cfg
->no_remote_charset
)
1788 term
->cset_attr
[1] = ATTR_SCOACS
;
1791 case ANSI('8', '%'): /* Old Linux code */
1792 case ANSI('G', '%'):
1793 compatibility(OTHER
);
1794 if (!term
->cfg
->no_remote_charset
)
1797 case ANSI('@', '%'):
1798 compatibility(OTHER
);
1799 if (!term
->cfg
->no_remote_charset
)
1805 term
->termstate
= TOPLEVEL
; /* default */
1807 if (term
->esc_nargs
<= ARGS_MAX
) {
1808 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1809 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1810 term
->esc_args
[term
->esc_nargs
- 1] =
1811 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1813 term
->termstate
= SEEN_CSI
;
1814 } else if (c
== ';') {
1815 if (++term
->esc_nargs
<= ARGS_MAX
)
1816 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1817 term
->termstate
= SEEN_CSI
;
1818 } else if (c
< '@') {
1819 if (term
->esc_query
)
1820 term
->esc_query
= -1;
1822 term
->esc_query
= TRUE
;
1824 term
->esc_query
= c
;
1825 term
->termstate
= SEEN_CSI
;
1827 switch (ANSI(c
, term
->esc_query
)) {
1828 case 'A': /* move up N lines */
1829 move(term
, term
->curs
.x
,
1830 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1831 term
->seen_disp_event
= TRUE
;
1833 case 'e': /* move down N lines */
1834 compatibility(ANSI
);
1837 move(term
, term
->curs
.x
,
1838 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1839 term
->seen_disp_event
= TRUE
;
1841 case ANSI('c', '>'): /* report xterm version */
1842 compatibility(OTHER
);
1843 /* this reports xterm version 136 so that VIM can
1844 use the drag messages from the mouse reporting */
1846 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1848 case 'a': /* move right N cols */
1849 compatibility(ANSI
);
1852 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1854 term
->seen_disp_event
= TRUE
;
1856 case 'D': /* move left N cols */
1857 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1859 term
->seen_disp_event
= TRUE
;
1861 case 'E': /* move down N lines and CR */
1862 compatibility(ANSI
);
1864 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1865 term
->seen_disp_event
= TRUE
;
1867 case 'F': /* move up N lines and CR */
1868 compatibility(ANSI
);
1870 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1871 term
->seen_disp_event
= TRUE
;
1874 case '`': /* set horizontal posn */
1875 compatibility(ANSI
);
1876 move(term
, def(term
->esc_args
[0], 1) - 1,
1878 term
->seen_disp_event
= TRUE
;
1880 case 'd': /* set vertical posn */
1881 compatibility(ANSI
);
1882 move(term
, term
->curs
.x
,
1883 ((term
->dec_om ? term
->marg_t
: 0) +
1884 def(term
->esc_args
[0], 1) - 1),
1885 (term
->dec_om ?
2 : 0));
1886 term
->seen_disp_event
= TRUE
;
1889 case 'f': /* set horz and vert posns at once */
1890 if (term
->esc_nargs
< 2)
1891 term
->esc_args
[1] = ARG_DEFAULT
;
1892 move(term
, def(term
->esc_args
[1], 1) - 1,
1893 ((term
->dec_om ? term
->marg_t
: 0) +
1894 def(term
->esc_args
[0], 1) - 1),
1895 (term
->dec_om ?
2 : 0));
1896 term
->seen_disp_event
= TRUE
;
1898 case 'J': /* erase screen or parts of it */
1900 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1903 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1906 term
->seen_disp_event
= TRUE
;
1908 case 'K': /* erase line or parts of it */
1910 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1913 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1915 term
->seen_disp_event
= TRUE
;
1917 case 'L': /* insert lines */
1918 compatibility(VT102
);
1919 if (term
->curs
.y
<= term
->marg_b
)
1920 scroll(term
, term
->curs
.y
, term
->marg_b
,
1921 -def(term
->esc_args
[0], 1), FALSE
);
1923 term
->seen_disp_event
= TRUE
;
1925 case 'M': /* delete lines */
1926 compatibility(VT102
);
1927 if (term
->curs
.y
<= term
->marg_b
)
1928 scroll(term
, term
->curs
.y
, term
->marg_b
,
1929 def(term
->esc_args
[0], 1),
1932 term
->seen_disp_event
= TRUE
;
1934 case '@': /* insert chars */
1935 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1936 compatibility(VT102
);
1937 insch(term
, def(term
->esc_args
[0], 1));
1938 term
->seen_disp_event
= TRUE
;
1940 case 'P': /* delete chars */
1941 compatibility(VT102
);
1942 insch(term
, -def(term
->esc_args
[0], 1));
1943 term
->seen_disp_event
= TRUE
;
1945 case 'c': /* terminal type query */
1946 compatibility(VT100
);
1947 /* This is the response for a VT102 */
1949 ldisc_send(term
->ldisc
, term
->id_string
,
1950 strlen(term
->id_string
), 0);
1952 case 'n': /* cursor position query */
1954 if (term
->esc_args
[0] == 6) {
1956 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1958 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1959 } else if (term
->esc_args
[0] == 5) {
1960 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1964 case 'h': /* toggle modes to high */
1966 compatibility(VT100
);
1969 for (i
= 0; i
< term
->esc_nargs
; i
++)
1970 toggle_mode(term
, term
->esc_args
[i
],
1971 term
->esc_query
, TRUE
);
1976 compatibility(VT100
);
1978 if (term
->esc_nargs
!= 1) break;
1979 if (term
->esc_args
[0] == 5 && *term
->cfg
->printer
) {
1980 term
->printing
= TRUE
;
1981 term
->only_printing
= !term
->esc_query
;
1982 term
->print_state
= 0;
1983 term_print_setup(term
);
1984 } else if (term
->esc_args
[0] == 4 &&
1986 term_print_finish(term
);
1990 case 'l': /* toggle modes to low */
1992 compatibility(VT100
);
1995 for (i
= 0; i
< term
->esc_nargs
; i
++)
1996 toggle_mode(term
, term
->esc_args
[i
],
1997 term
->esc_query
, FALSE
);
2000 case 'g': /* clear tabs */
2001 compatibility(VT100
);
2002 if (term
->esc_nargs
== 1) {
2003 if (term
->esc_args
[0] == 0) {
2004 term
->tabs
[term
->curs
.x
] = FALSE
;
2005 } else if (term
->esc_args
[0] == 3) {
2007 for (i
= 0; i
< term
->cols
; i
++)
2008 term
->tabs
[i
] = FALSE
;
2012 case 'r': /* set scroll margins */
2013 compatibility(VT100
);
2014 if (term
->esc_nargs
<= 2) {
2016 top
= def(term
->esc_args
[0], 1) - 1;
2017 bot
= (term
->esc_nargs
<= 1
2018 || term
->esc_args
[1] == 0 ?
2020 def(term
->esc_args
[1], term
->rows
)) - 1;
2021 if (bot
>= term
->rows
)
2022 bot
= term
->rows
- 1;
2023 /* VTTEST Bug 9 - if region is less than 2 lines
2024 * don't change region.
2026 if (bot
- top
> 0) {
2031 * I used to think the cursor should be
2032 * placed at the top of the newly marginned
2033 * area. Apparently not: VMS TPU falls over
2036 * Well actually it should for
2039 term
->curs
.y
= (term
->dec_om ?
2042 term
->seen_disp_event
= TRUE
;
2046 case 'm': /* set graphics rendition */
2049 * A VT100 without the AVO only had one
2050 * attribute, either underline or
2051 * reverse video depending on the
2052 * cursor type, this was selected by
2056 * This is sometimes DIM, eg on the
2059 * This is sometimes INVIS various ANSI.
2061 * This like 22 disables BOLD, DIM and INVIS
2063 * The ANSI colours appear on any
2064 * terminal that has colour (obviously)
2065 * but the interaction between sgr0 and
2066 * the colours varies but is usually
2067 * related to the background colour
2068 * erase item. The interaction between
2069 * colour attributes and the mono ones
2070 * is also very implementation
2073 * The 39 and 49 attributes are likely
2074 * to be unimplemented.
2077 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2078 switch (def(term
->esc_args
[i
], 0)) {
2079 case 0: /* restore defaults */
2080 term
->curr_attr
= ATTR_DEFAULT
;
2082 case 1: /* enable bold */
2083 compatibility(VT100AVO
);
2084 term
->curr_attr
|= ATTR_BOLD
;
2086 case 21: /* (enable double underline) */
2087 compatibility(OTHER
);
2088 case 4: /* enable underline */
2089 compatibility(VT100AVO
);
2090 term
->curr_attr
|= ATTR_UNDER
;
2092 case 5: /* enable blink */
2093 compatibility(VT100AVO
);
2094 term
->curr_attr
|= ATTR_BLINK
;
2096 case 7: /* enable reverse video */
2097 term
->curr_attr
|= ATTR_REVERSE
;
2099 case 10: /* SCO acs off */
2100 compatibility(SCOANSI
);
2101 if (term
->cfg
->no_remote_charset
) break;
2102 term
->sco_acs
= 0; break;
2103 case 11: /* SCO acs on */
2104 compatibility(SCOANSI
);
2105 if (term
->cfg
->no_remote_charset
) break;
2106 term
->sco_acs
= 1; break;
2107 case 12: /* SCO acs on flipped */
2108 compatibility(SCOANSI
);
2109 if (term
->cfg
->no_remote_charset
) break;
2110 term
->sco_acs
= 2; break;
2111 case 22: /* disable bold */
2112 compatibility2(OTHER
, VT220
);
2113 term
->curr_attr
&= ~ATTR_BOLD
;
2115 case 24: /* disable underline */
2116 compatibility2(OTHER
, VT220
);
2117 term
->curr_attr
&= ~ATTR_UNDER
;
2119 case 25: /* disable blink */
2120 compatibility2(OTHER
, VT220
);
2121 term
->curr_attr
&= ~ATTR_BLINK
;
2123 case 27: /* disable reverse video */
2124 compatibility2(OTHER
, VT220
);
2125 term
->curr_attr
&= ~ATTR_REVERSE
;
2136 term
->curr_attr
&= ~ATTR_FGMASK
;
2138 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2140 case 39: /* default-foreground */
2141 term
->curr_attr
&= ~ATTR_FGMASK
;
2142 term
->curr_attr
|= ATTR_DEFFG
;
2153 term
->curr_attr
&= ~ATTR_BGMASK
;
2155 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2157 case 49: /* default-background */
2158 term
->curr_attr
&= ~ATTR_BGMASK
;
2159 term
->curr_attr
|= ATTR_DEFBG
;
2164 term
->erase_char
= (' ' | ATTR_ASCII
|
2170 case 's': /* save cursor */
2171 save_cursor(term
, TRUE
);
2173 case 'u': /* restore cursor */
2174 save_cursor(term
, FALSE
);
2175 term
->seen_disp_event
= TRUE
;
2177 case 't': /* set page size - ie window height */
2179 * VT340/VT420 sequence DECSLPP, DEC only allows values
2180 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2181 * illegal values (eg first arg 1..9) for window changing
2184 if (term
->esc_nargs
<= 1
2185 && (term
->esc_args
[0] < 1 ||
2186 term
->esc_args
[0] >= 24)) {
2187 compatibility(VT340TEXT
);
2188 if (!term
->cfg
->no_remote_resize
)
2189 request_resize(term
->frontend
, term
->cols
,
2190 def(term
->esc_args
[0], 24));
2192 } else if (term
->esc_nargs
>= 1 &&
2193 term
->esc_args
[0] >= 1 &&
2194 term
->esc_args
[0] < 24) {
2195 compatibility(OTHER
);
2197 switch (term
->esc_args
[0]) {
2201 set_iconic(term
->frontend
, FALSE
);
2204 set_iconic(term
->frontend
, TRUE
);
2207 if (term
->esc_nargs
>= 3) {
2208 if (!term
->cfg
->no_remote_resize
)
2209 move_window(term
->frontend
,
2210 def(term
->esc_args
[1], 0),
2211 def(term
->esc_args
[2], 0));
2215 /* We should resize the window to a given
2216 * size in pixels here, but currently our
2217 * resizing code isn't healthy enough to
2222 set_zorder(term
->frontend
, TRUE
);
2225 /* move to bottom */
2226 set_zorder(term
->frontend
, FALSE
);
2229 refresh_window(term
->frontend
);
2232 if (term
->esc_nargs
>= 3) {
2233 if (!term
->cfg
->no_remote_resize
)
2234 request_resize(term
->frontend
,
2235 def(term
->esc_args
[2], term
->cfg
->width
),
2236 def(term
->esc_args
[1], term
->cfg
->height
));
2240 if (term
->esc_nargs
>= 2)
2241 set_zoomed(term
->frontend
,
2247 ldisc_send(term
->ldisc
,
2248 is_iconic(term
->frontend
) ?
2249 "\033[1t" : "\033[2t", 4, 0);
2253 get_window_pos(term
->frontend
, &x
, &y
);
2254 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2255 ldisc_send(term
->ldisc
, buf
, len
, 0);
2260 get_window_pixels(term
->frontend
, &x
, &y
);
2261 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2262 ldisc_send(term
->ldisc
, buf
, len
, 0);
2267 len
= sprintf(buf
, "\033[8;%d;%dt",
2268 term
->rows
, term
->cols
);
2269 ldisc_send(term
->ldisc
, buf
, len
, 0);
2274 * Hmmm. Strictly speaking we
2275 * should return `the size of the
2276 * screen in characters', but
2277 * that's not easy: (a) window
2278 * furniture being what it is it's
2279 * hard to compute, and (b) in
2280 * resize-font mode maximising the
2281 * window wouldn't change the
2282 * number of characters. *shrug*. I
2283 * think we'll ignore it for the
2284 * moment and see if anyone
2285 * complains, and then ask them
2286 * what they would like it to do.
2291 p
= get_window_title(term
->frontend
, TRUE
);
2293 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2294 ldisc_send(term
->ldisc
, p
, len
, 0);
2295 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2300 p
= get_window_title(term
->frontend
,FALSE
);
2302 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2303 ldisc_send(term
->ldisc
, p
, len
, 0);
2304 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2311 compatibility(SCOANSI
);
2312 scroll(term
, term
->marg_t
, term
->marg_b
,
2313 def(term
->esc_args
[0], 1), TRUE
);
2315 term
->wrapnext
= FALSE
;
2316 term
->seen_disp_event
= TRUE
;
2319 compatibility(SCOANSI
);
2320 scroll(term
, term
->marg_t
, term
->marg_b
,
2321 -def(term
->esc_args
[0], 1), TRUE
);
2323 term
->wrapnext
= FALSE
;
2324 term
->seen_disp_event
= TRUE
;
2326 case ANSI('|', '*'):
2327 /* VT420 sequence DECSNLS
2328 * Set number of lines on screen
2329 * VT420 uses VGA like hardware and can support any size in
2330 * reasonable range (24..49 AIUI) with no default specified.
2332 compatibility(VT420
);
2333 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2334 if (!term
->cfg
->no_remote_resize
)
2335 request_resize(term
->frontend
, term
->cols
,
2336 def(term
->esc_args
[0],
2337 term
->cfg
->height
));
2341 case ANSI('|', '$'):
2342 /* VT340/VT420 sequence DECSCPP
2343 * Set number of columns per page
2344 * Docs imply range is only 80 or 132, but I'll allow any.
2346 compatibility(VT340TEXT
);
2347 if (term
->esc_nargs
<= 1) {
2348 if (!term
->cfg
->no_remote_resize
)
2349 request_resize(term
->frontend
,
2350 def(term
->esc_args
[0],
2351 term
->cfg
->width
), term
->rows
);
2355 case 'X': /* write N spaces w/o moving cursor */
2356 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2357 compatibility(ANSIMIN
);
2359 int n
= def(term
->esc_args
[0], 1);
2361 unsigned long *p
= term
->cpos
;
2362 if (n
> term
->cols
- term
->curs
.x
)
2363 n
= term
->cols
- term
->curs
.x
;
2364 cursplus
= term
->curs
;
2366 check_selection(term
, term
->curs
, cursplus
);
2368 *p
++ = term
->erase_char
;
2369 term
->seen_disp_event
= TRUE
;
2372 case 'x': /* report terminal characteristics */
2373 compatibility(VT100
);
2376 int i
= def(term
->esc_args
[0], 0);
2377 if (i
== 0 || i
== 1) {
2378 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2380 ldisc_send(term
->ldisc
, buf
, 20, 0);
2384 case 'Z': /* BackTab for xterm */
2385 compatibility(OTHER
);
2387 int i
= def(term
->esc_args
[0], 1);
2388 pos old_curs
= term
->curs
;
2390 for(;i
>0 && term
->curs
.x
>0; i
--) {
2393 } while (term
->curs
.x
>0 &&
2394 !term
->tabs
[term
->curs
.x
]);
2397 check_selection(term
, old_curs
, term
->curs
);
2400 case ANSI('L', '='):
2401 compatibility(OTHER
);
2402 term
->use_bce
= (term
->esc_args
[0] <= 0);
2403 term
->erase_char
= ERASE_CHAR
;
2405 term
->erase_char
= (' ' | ATTR_ASCII
|
2407 (ATTR_FGMASK
| ATTR_BGMASK
)));
2409 case ANSI('E', '='):
2410 compatibility(OTHER
);
2411 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2413 case ANSI('p', '"'):
2415 * Allow the host to make this emulator a
2416 * 'perfect' VT102. This first appeared in
2417 * the VT220, but we do need to get back to
2418 * PuTTY mode so I won't check it.
2420 * The arg in 40..42,50 are a PuTTY extension.
2421 * The 2nd arg, 8bit vs 7bit is not checked.
2423 * Setting VT102 mode should also change
2424 * the Fkeys to generate PF* codes as a
2425 * real VT102 has no Fkeys. The VT220 does
2426 * this, F11..F13 become ESC,BS,LF other
2427 * Fkeys send nothing.
2429 * Note ESC c will NOT change this!
2432 switch (term
->esc_args
[0]) {
2434 term
->compatibility_level
&= ~TM_VTXXX
;
2435 term
->compatibility_level
|= TM_VT102
;
2438 term
->compatibility_level
&= ~TM_VTXXX
;
2439 term
->compatibility_level
|= TM_VT220
;
2443 if (term
->esc_args
[0] > 60 &&
2444 term
->esc_args
[0] < 70)
2445 term
->compatibility_level
|= TM_VTXXX
;
2449 term
->compatibility_level
&= TM_VTXXX
;
2452 term
->compatibility_level
= TM_PUTTY
;
2455 term
->compatibility_level
= TM_SCOANSI
;
2459 term
->compatibility_level
= TM_PUTTY
;
2465 /* Change the response to CSI c */
2466 if (term
->esc_args
[0] == 50) {
2469 strcpy(term
->id_string
, "\033[?");
2470 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2472 strcat(term
->id_string
, ";");
2473 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2474 strcat(term
->id_string
, lbuf
);
2476 strcat(term
->id_string
, "c");
2479 /* Is this a good idea ?
2480 * Well we should do a soft reset at this point ...
2482 if (!has_compat(VT420
) && has_compat(VT100
)) {
2483 if (!term
->cfg
->no_remote_resize
) {
2484 if (term
->reset_132
)
2485 request_resize(132, 24);
2487 request_resize(80, 24);
2495 term
->osc_w
= FALSE
;
2497 case 'P': /* Linux palette sequence */
2498 term
->termstate
= SEEN_OSC_P
;
2499 term
->osc_strlen
= 0;
2501 case 'R': /* Linux palette reset */
2502 palette_reset(term
->frontend
);
2503 term_invalidate(term
);
2504 term
->termstate
= TOPLEVEL
;
2506 case 'W': /* word-set */
2507 term
->termstate
= SEEN_OSC_W
;
2520 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2524 * Grotty hack to support xterm and DECterm title
2525 * sequences concurrently.
2527 if (term
->esc_args
[0] == 2) {
2528 term
->esc_args
[0] = 1;
2531 /* else fall through */
2533 term
->termstate
= OSC_STRING
;
2534 term
->osc_strlen
= 0;
2539 * This OSC stuff is EVIL. It takes just one character to get into
2540 * sysline mode and it's not initially obvious how to get out.
2541 * So I've added CR and LF as string aborts.
2542 * This shouldn't effect compatibility as I believe embedded
2543 * control characters are supposed to be interpreted (maybe?)
2544 * and they don't display anything useful anyway.
2548 if (c
== '\012' || c
== '\015') {
2549 term
->termstate
= TOPLEVEL
;
2550 } else if (c
== 0234 || c
== '\007') {
2552 * These characters terminate the string; ST and BEL
2553 * terminate the sequence and trigger instant
2554 * processing of it, whereas ESC goes back to SEEN_ESC
2555 * mode unless it is followed by \, in which case it is
2556 * synonymous with ST in the first place.
2559 term
->termstate
= TOPLEVEL
;
2560 } else if (c
== '\033')
2561 term
->termstate
= OSC_MAYBE_ST
;
2562 else if (term
->osc_strlen
< OSC_STR_MAX
)
2563 term
->osc_string
[term
->osc_strlen
++] = c
;
2567 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2569 if (c
>= '0' && c
<= '9')
2571 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2573 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2576 term
->termstate
= TOPLEVEL
;
2579 term
->osc_string
[term
->osc_strlen
++] = val
;
2580 if (term
->osc_strlen
>= 7) {
2581 palette_set(term
->frontend
, term
->osc_string
[0],
2582 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2583 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2584 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2585 term_invalidate(term
);
2586 term
->termstate
= TOPLEVEL
;
2602 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2605 term
->termstate
= OSC_STRING
;
2606 term
->osc_strlen
= 0;
2610 term
->termstate
= TOPLEVEL
;
2611 term
->seen_disp_event
= TRUE
;
2614 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2617 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2620 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2623 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2626 * From the VT100 Manual
2627 * NOTE: The special graphics characters in the VT100
2628 * are different from those in the VT52
2630 * From VT102 manual:
2631 * 137 _ Blank - Same
2632 * 140 ` Reserved - Humm.
2633 * 141 a Solid rectangle - Similar
2634 * 142 b 1/ - Top half of fraction for the
2635 * 143 c 3/ - subscript numbers below.
2638 * 146 f Degrees - Same
2639 * 147 g Plus or minus - Same
2641 * 151 i Ellipsis (dots)
2644 * 154 l Bar at scan 0
2645 * 155 m Bar at scan 1
2646 * 156 n Bar at scan 2
2647 * 157 o Bar at scan 3 - Similar
2648 * 160 p Bar at scan 4 - Similar
2649 * 161 q Bar at scan 5 - Similar
2650 * 162 r Bar at scan 6 - Same
2651 * 163 s Bar at scan 7 - Similar
2666 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2669 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2672 move(term
, 0, 0, 0);
2675 if (term
->curs
.y
== 0)
2676 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2677 else if (term
->curs
.y
> 0)
2680 term
->wrapnext
= FALSE
;
2683 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2687 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2691 /* XXX Print cursor line */
2694 /* XXX Start controller mode */
2697 /* XXX Stop controller mode */
2701 term
->termstate
= VT52_Y1
;
2705 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2708 term
->app_keypad_keys
= TRUE
;
2711 term
->app_keypad_keys
= FALSE
;
2714 /* XXX This should switch to VT100 mode not current or default
2715 * VT mode. But this will only have effect in a VT220+
2718 term
->vt52_mode
= FALSE
;
2719 term
->blink_is_real
= term
->cfg
->blinktext
;
2723 /* XXX Enter auto print mode */
2726 /* XXX Exit auto print mode */
2729 /* XXX Print screen */
2735 /* compatibility(ATARI) */
2736 move(term
, 0, 0, 0);
2737 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2741 /* compatibility(ATARI) */
2742 if (term
->curs
.y
<= term
->marg_b
)
2743 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2746 /* compatibility(ATARI) */
2747 if (term
->curs
.y
<= term
->marg_b
)
2748 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2751 /* compatibility(ATARI) */
2752 term
->termstate
= VT52_FG
;
2755 /* compatibility(ATARI) */
2756 term
->termstate
= VT52_BG
;
2759 /* compatibility(ATARI) */
2760 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2764 /* compatibility(ATARI) */
2765 term
->cursor_on
= TRUE
;
2768 /* compatibility(ATARI) */
2769 term
->cursor_on
= FALSE
;
2771 /* case 'j': Save cursor position - broken on ST */
2772 /* case 'k': Restore cursor position */
2774 /* compatibility(ATARI) */
2775 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2777 term
->wrapnext
= FALSE
;
2781 /* compatibility(ATARI) */
2782 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2785 /* compatibility(ATARI) */
2786 term
->curr_attr
|= ATTR_REVERSE
;
2789 /* compatibility(ATARI) */
2790 term
->curr_attr
&= ~ATTR_REVERSE
;
2792 case 'v': /* wrap Autowrap on - Wyse style */
2793 /* compatibility(ATARI) */
2796 case 'w': /* Autowrap off */
2797 /* compatibility(ATARI) */
2802 /* compatibility(OTHER) */
2803 term
->vt52_bold
= FALSE
;
2804 term
->curr_attr
= ATTR_DEFAULT
;
2806 term
->erase_char
= (' ' | ATTR_ASCII
|
2808 (ATTR_FGMASK
| ATTR_BGMASK
)));
2811 /* compatibility(VI50) */
2812 term
->curr_attr
|= ATTR_UNDER
;
2815 /* compatibility(VI50) */
2816 term
->curr_attr
&= ~ATTR_UNDER
;
2819 /* compatibility(VI50) */
2820 term
->vt52_bold
= TRUE
;
2821 term
->curr_attr
|= ATTR_BOLD
;
2824 /* compatibility(VI50) */
2825 term
->vt52_bold
= FALSE
;
2826 term
->curr_attr
&= ~ATTR_BOLD
;
2832 term
->termstate
= VT52_Y2
;
2833 move(term
, term
->curs
.x
, c
- ' ', 0);
2836 term
->termstate
= TOPLEVEL
;
2837 move(term
, c
- ' ', term
->curs
.y
, 0);
2842 term
->termstate
= TOPLEVEL
;
2843 term
->curr_attr
&= ~ATTR_FGMASK
;
2844 term
->curr_attr
&= ~ATTR_BOLD
;
2845 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2846 if ((c
& 0x8) || term
->vt52_bold
)
2847 term
->curr_attr
|= ATTR_BOLD
;
2850 term
->erase_char
= (' ' | ATTR_ASCII
|
2852 (ATTR_FGMASK
| ATTR_BGMASK
)));
2855 term
->termstate
= TOPLEVEL
;
2856 term
->curr_attr
&= ~ATTR_BGMASK
;
2857 term
->curr_attr
&= ~ATTR_BLINK
;
2858 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2860 /* Note: bold background */
2862 term
->curr_attr
|= ATTR_BLINK
;
2865 term
->erase_char
= (' ' | ATTR_ASCII
|
2867 (ATTR_FGMASK
| ATTR_BGMASK
)));
2870 default: break; /* placate gcc warning about enum use */
2872 if (term
->selstate
!= NO_SELECTION
) {
2873 pos cursplus
= term
->curs
;
2875 check_selection(term
, term
->curs
, cursplus
);
2879 term_print_flush(term
);
2884 * Compare two lines to determine whether they are sufficiently
2885 * alike to scroll-optimise one to the other. Return the degree of
2888 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2892 for (i
= n
= 0; i
< term
->cols
; i
++)
2893 n
+= (*a
++ == *b
++);
2899 * Given a context, update the window. Out of paranoia, we don't
2900 * allow WM_PAINT responses to do scrolling optimisations.
2902 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2904 int i
, j
, our_curs_y
;
2905 unsigned long rv
, cursor
;
2908 long cursor_background
= ERASE_CHAR
;
2909 unsigned long ticks
;
2912 * Check the visual bell state.
2914 if (term
->in_vbell
) {
2915 ticks
= GETTICKCOUNT();
2916 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2917 term
->in_vbell
= FALSE
;
2920 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2923 * screen array, disptop, scrtop,
2925 * cfg.blinkpc, blink_is_real, tblinker,
2926 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2929 /* Has the cursor position or type changed ? */
2930 if (term
->cursor_on
) {
2931 if (term
->has_focus
) {
2932 if (term
->blinker
|| !term
->cfg
->blink_cur
)
2933 cursor
= TATTR_ACTCURS
;
2937 cursor
= TATTR_PASCURS
;
2939 cursor
|= TATTR_RIGHTCURS
;
2942 our_curs_y
= term
->curs
.y
- term
->disptop
;
2944 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2946 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2948 if (term
->dispcurs
> term
->disptext
&&
2949 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2950 term
->dispcurs
[-1] |= ATTR_INVALID
;
2951 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2952 term
->dispcurs
[1] |= ATTR_INVALID
;
2953 *term
->dispcurs
|= ATTR_INVALID
;
2956 term
->dispcurs
= NULL
;
2958 /* The normal screen data */
2959 for (i
= 0; i
< term
->rows
; i
++) {
2960 unsigned long *ldata
;
2962 int idx
, dirty_line
, dirty_run
, selected
;
2963 unsigned long attr
= 0;
2964 int updated_line
= 0;
2967 int last_run_dirty
= 0;
2969 scrpos
.y
= i
+ term
->disptop
;
2970 ldata
= lineptr(scrpos
.y
);
2971 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2973 idx
= i
* (term
->cols
+ 1);
2974 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2975 term
->disptext
[idx
+ term
->cols
]);
2976 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2978 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2979 unsigned long tattr
, tchar
;
2980 unsigned long *d
= ldata
+ j
;
2984 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2985 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2986 switch (tchar
& CSET_MASK
) {
2988 tchar
= unitab_line
[tchar
& 0xFF];
2991 tchar
= unitab_xterm
[tchar
& 0xFF];
2994 tchar
= unitab_scoacs
[tchar
&0xFF];
2997 tattr
|= (tchar
& CSET_MASK
);
2999 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3002 /* Video reversing things */
3003 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3004 if (term
->seltype
== LEXICOGRAPHIC
)
3005 selected
= (posle(term
->selstart
, scrpos
) &&
3006 poslt(scrpos
, term
->selend
));
3008 selected
= (posPle(term
->selstart
, scrpos
) &&
3009 posPlt(scrpos
, term
->selend
));
3013 ^ (selected ? ATTR_REVERSE
: 0));
3015 /* 'Real' blinking ? */
3016 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3017 if (term
->has_focus
&& term
->tblinker
) {
3019 tattr
&= ~CSET_MASK
;
3022 tattr
&= ~ATTR_BLINK
;
3026 * Check the font we'll _probably_ be using to see if
3027 * the character is wide when we don't want it to be.
3029 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3030 if ((tattr
& ATTR_WIDE
) == 0 &&
3031 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3032 tattr
|= ATTR_NARROW
;
3033 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3034 tattr
|= ATTR_NARROW
;
3036 /* Cursor here ? Save the 'background' */
3037 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3038 cursor_background
= tattr
| tchar
;
3039 term
->dispcurs
= term
->disptext
+ idx
;
3042 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3045 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3046 j
- start
>= sizeof(ch
));
3048 /* Special hack for VT100 Linedraw glyphs */
3049 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3050 && tchar
<= 0xBD) break_run
= TRUE
;
3052 if (!dbcs_screenfont
&& !dirty_line
) {
3053 if ((tchar
| tattr
) == term
->disptext
[idx
])
3055 else if (!dirty_run
&& ccount
== 1)
3060 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3061 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3067 if (dbcs_screenfont
)
3068 last_run_dirty
= dirty_run
;
3069 dirty_run
= dirty_line
;
3072 if ((tchar
| tattr
) != term
->disptext
[idx
])
3074 ch
[ccount
++] = (char) tchar
;
3075 term
->disptext
[idx
] = tchar
| tattr
;
3077 /* If it's a wide char step along to the next one. */
3078 if (tattr
& ATTR_WIDE
) {
3079 if (++j
< term
->cols
) {
3082 /* Cursor is here ? Ouch! */
3083 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3084 cursor_background
= *d
;
3085 term
->dispcurs
= term
->disptext
+ idx
;
3087 if (term
->disptext
[idx
] != *d
)
3089 term
->disptext
[idx
] = *d
;
3093 if (dirty_run
&& ccount
> 0) {
3094 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3098 /* Cursor on this line ? (and changed) */
3099 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3100 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3101 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3102 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3103 term
->curstype
= cursor
;
3109 * Flick the switch that says if blinking things should be shown or hidden.
3112 void term_blink(Terminal
*term
, int flg
)
3114 long now
, blink_diff
;
3116 now
= GETTICKCOUNT();
3117 blink_diff
= now
- term
->last_tblink
;
3119 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3120 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3121 term
->last_tblink
= now
;
3122 term
->tblinker
= !term
->tblinker
;
3127 term
->last_blink
= now
;
3131 blink_diff
= now
- term
->last_blink
;
3133 /* Make sure the cursor blinks no faster than system blink rate */
3134 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3137 term
->last_blink
= now
;
3138 term
->blinker
= !term
->blinker
;
3142 * Invalidate the whole screen so it will be repainted in full.
3144 void term_invalidate(Terminal
*term
)
3148 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3149 term
->disptext
[i
] = ATTR_INVALID
;
3153 * Paint the window in response to a WM_PAINT message.
3155 void term_paint(Terminal
*term
, Context ctx
,
3156 int left
, int top
, int right
, int bottom
, int immediately
)
3159 if (left
< 0) left
= 0;
3160 if (top
< 0) top
= 0;
3161 if (right
>= term
->cols
) right
= term
->cols
-1;
3162 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3164 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3165 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3166 LATTR_MODE
) == LATTR_NORM
)
3167 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3168 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3170 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3171 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3174 /* This should happen soon enough, also for some reason it sometimes
3175 * fails to actually do anything when re-sizing ... painting the wrong
3179 do_paint (term
, ctx
, FALSE
);
3183 * Attempt to scroll the scrollback. The second parameter gives the
3184 * position we want to scroll to; the first is +1 to denote that
3185 * this position is relative to the beginning of the scrollback, -1
3186 * to denote it is relative to the end, and 0 to denote that it is
3187 * relative to the current position.
3189 void term_scroll(Terminal
*term
, int rel
, int where
)
3191 int sbtop
= -count234(term
->scrollback
);
3192 #ifdef OPTIMISE_SCROLL
3193 int olddisptop
= term
->disptop
;
3195 #endif /* OPTIMISE_SCROLL */
3197 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3198 if (term
->disptop
< sbtop
)
3199 term
->disptop
= sbtop
;
3200 if (term
->disptop
> 0)
3203 #ifdef OPTIMISE_SCROLL
3204 shift
= (term
->disptop
- olddisptop
);
3205 if (shift
< term
->rows
&& shift
> -term
->rows
)
3206 scroll_display(term
, 0, term
->rows
- 1, shift
);
3207 #endif /* OPTIMISE_SCROLL */
3211 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3214 wchar_t *wbptr
; /* where next char goes within workbuf */
3216 int wblen
= 0; /* workbuf len */
3217 int buflen
; /* amount of memory allocated to workbuf */
3219 buflen
= 5120; /* Default size */
3220 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3221 wbptr
= workbuf
; /* start filling here */
3222 old_top_x
= top
.x
; /* needed for rect==1 */
3224 while (poslt(top
, bottom
)) {
3226 unsigned long *ldata
= lineptr(top
.y
);
3230 * nlpos will point at the maximum position on this line we
3231 * should copy up to. So we start it at the end of the
3235 nlpos
.x
= term
->cols
;
3238 * ... move it backwards if there's unused space at the end
3239 * of the line (and also set `nl' if this is the case,
3240 * because in normal selection mode this means we need a
3241 * newline at the end)...
3243 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3244 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3245 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3246 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3247 && poslt(top
, nlpos
))
3249 if (poslt(nlpos
, bottom
))
3254 * ... and then clip it to the terminal x coordinate if
3255 * we're doing rectangular selection. (In this case we
3256 * still did the above, so that copying e.g. the right-hand
3257 * column from a table doesn't fill with spaces on the
3261 if (nlpos
.x
> bottom
.x
)
3263 nl
= (top
.y
< bottom
.y
);
3266 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3269 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3271 wchar_t cbuf
[16], *p
;
3272 int uc
= (ldata
[top
.x
] & 0xFFFF);
3275 if (uc
== UCSWIDE
) {
3280 switch (uc
& CSET_MASK
) {
3282 if (!term
->cfg
->rawcnp
) {
3283 uc
= unitab_xterm
[uc
& 0xFF];
3287 uc
= unitab_line
[uc
& 0xFF];
3290 uc
= unitab_scoacs
[uc
&0xFF];
3293 switch (uc
& CSET_MASK
) {
3295 uc
= unitab_font
[uc
& 0xFF];
3298 uc
= unitab_oemcp
[uc
& 0xFF];
3302 set
= (uc
& CSET_MASK
);
3303 c
= (uc
& CHAR_MASK
);
3307 if (DIRECT_FONT(uc
)) {
3308 if (c
>= ' ' && c
!= 0x7F) {
3312 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3314 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3315 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3319 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3323 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3330 for (p
= cbuf
; *p
; p
++) {
3331 /* Enough overhead for trailing NL and nul */
3332 if (wblen
>= buflen
- 16) {
3335 sizeof(wchar_t) * (buflen
+= 100));
3336 wbptr
= workbuf
+ wblen
;
3345 for (i
= 0; i
< sel_nl_sz
; i
++) {
3347 *wbptr
++ = sel_nl
[i
];
3351 top
.x
= rect ? old_top_x
: 0;
3353 #if SELECTION_NUL_TERMINATED
3357 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3358 if (buflen
> 0) /* indicates we allocated this buffer */
3362 void term_copyall(Terminal
*term
)
3365 top
.y
= -count234(term
->scrollback
);
3367 clipme(term
, top
, term
->curs
, 0);
3371 * The wordness array is mainly for deciding the disposition of the
3372 * US-ASCII characters.
3374 static int wordtype(Terminal
*term
, int uc
)
3377 int start
, end
, ctype
;
3379 static const struct ucsword ucs_words
[] = {
3385 0x037e, 0x037e, 1}, /* Greek question mark */
3387 0x0387, 0x0387, 1}, /* Greek ano teleia */
3389 0x055a, 0x055f, 1}, /* Armenian punctuation */
3391 0x0589, 0x0589, 1}, /* Armenian full stop */
3393 0x0700, 0x070d, 1}, /* Syriac punctuation */
3395 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3397 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3399 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3401 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3403 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3405 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3407 0x2000, 0x200a, 0}, /* Various spaces */
3409 0x2070, 0x207f, 2}, /* superscript */
3411 0x2080, 0x208f, 2}, /* subscript */
3413 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3415 0x3000, 0x3000, 0}, /* ideographic space */
3417 0x3001, 0x3020, 1}, /* ideographic punctuation */
3419 0x303f, 0x309f, 3}, /* Hiragana */
3421 0x30a0, 0x30ff, 3}, /* Katakana */
3423 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3425 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3427 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3429 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3431 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3433 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3435 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3437 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3439 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3443 const struct ucsword
*wptr
;
3445 uc
&= (CSET_MASK
| CHAR_MASK
);
3447 switch (uc
& CSET_MASK
) {
3449 uc
= unitab_xterm
[uc
& 0xFF];
3452 uc
= unitab_line
[uc
& 0xFF];
3455 uc
= unitab_scoacs
[uc
&0xFF];
3458 switch (uc
& CSET_MASK
) {
3460 uc
= unitab_font
[uc
& 0xFF];
3463 uc
= unitab_oemcp
[uc
& 0xFF];
3467 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3468 * fail as there's such a thing as a double width space. :-(
3470 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3474 return term
->wordness
[uc
];
3476 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3477 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3485 * Spread the selection outwards according to the selection mode.
3487 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3489 unsigned long *ldata
;
3491 int topy
= -count234(term
->scrollback
);
3493 ldata
= lineptr(p
.y
);
3495 switch (term
->selmode
) {
3498 * In this mode, every character is a separate unit, except
3499 * for runs of spaces at the end of a non-wrapping line.
3501 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3502 unsigned long *q
= ldata
+ term
->cols
;
3503 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3505 if (q
== ldata
+ term
->cols
)
3507 if (p
.x
>= q
- ldata
)
3508 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3513 * In this mode, the units are maximal runs of characters
3514 * whose `wordness' has the same value.
3516 wvalue
= wordtype(term
, ldata
[p
.x
]);
3519 if (p
.x
< term
->cols
-1) {
3520 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3525 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3526 unsigned long *ldata2
;
3527 ldata2
= lineptr(p
.y
+1);
3528 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3541 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3546 unsigned long *ldata2
;
3549 ldata2
= lineptr(p
.y
-1);
3550 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3551 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3563 * In this mode, every line is a unit.
3565 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3571 static void sel_spread(Terminal
*term
)
3573 if (term
->seltype
== LEXICOGRAPHIC
) {
3574 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3575 decpos(term
->selend
);
3576 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3577 incpos(term
->selend
);
3581 void term_do_paste(Terminal
*term
)
3586 get_clip(term
->frontend
, &data
, &len
);
3587 if (data
&& len
> 0) {
3590 term_seen_key_event(term
); /* pasted data counts */
3592 if (term
->paste_buffer
)
3593 sfree(term
->paste_buffer
);
3594 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3595 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3598 while (p
< data
+ len
) {
3599 while (p
< data
+ len
&&
3600 !(p
<= data
+ len
- sel_nl_sz
&&
3601 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3606 for (i
= 0; i
< p
- q
; i
++) {
3607 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3611 if (p
<= data
+ len
- sel_nl_sz
&&
3612 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3613 term
->paste_buffer
[term
->paste_len
++] = '\015';
3619 /* Assume a small paste will be OK in one go. */
3620 if (term
->paste_len
< 256) {
3622 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3623 if (term
->paste_buffer
)
3624 sfree(term
->paste_buffer
);
3625 term
->paste_buffer
= 0;
3626 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3629 get_clip(term
->frontend
, NULL
, NULL
);
3632 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3633 int shift
, int ctrl
, int alt
)
3636 unsigned long *ldata
;
3637 int raw_mouse
= (term
->xterm_mouse
&&
3638 !term
->cfg
->no_mouse_rep
&&
3639 !(term
->cfg
->mouse_override
&& shift
));
3640 int default_seltype
;
3644 if (a
== MA_DRAG
&& !raw_mouse
)
3645 term_scroll(term
, 0, -1);
3647 if (y
>= term
->rows
) {
3649 if (a
== MA_DRAG
&& !raw_mouse
)
3650 term_scroll(term
, 0, +1);
3659 if (x
>= term
->cols
)
3662 selpoint
.y
= y
+ term
->disptop
;
3664 ldata
= lineptr(selpoint
.y
);
3665 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3669 int encstate
= 0, r
, c
;
3676 encstate
= 0x20; /* left button down */
3687 case MBT_WHEEL_DOWN
:
3690 default: break; /* placate gcc warning about enum use */
3694 if (term
->xterm_mouse
== 1)
3700 term
->mouse_is_down
= 0;
3703 if (term
->mouse_is_down
== b
)
3705 term
->mouse_is_down
= b
;
3707 default: break; /* placate gcc warning about enum use */
3716 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3717 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3722 b
= translate_button(term
->frontend
, b
);
3725 * Set the selection type (rectangular or normal) at the start
3726 * of a selection attempt, from the state of Alt.
3728 if (!alt
^ !term
->cfg
->rect_select
)
3729 default_seltype
= RECTANGULAR
;
3731 default_seltype
= LEXICOGRAPHIC
;
3733 if (term
->selstate
== NO_SELECTION
) {
3734 term
->seltype
= default_seltype
;
3737 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3739 term
->selstate
= ABOUT_TO
;
3740 term
->seltype
= default_seltype
;
3741 term
->selanchor
= selpoint
;
3742 term
->selmode
= SM_CHAR
;
3743 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3745 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3746 term
->selstate
= DRAGGING
;
3747 term
->selstart
= term
->selanchor
= selpoint
;
3748 term
->selend
= term
->selstart
;
3749 incpos(term
->selend
);
3751 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3752 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3753 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3755 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3756 if (term
->seltype
== LEXICOGRAPHIC
) {
3758 * For normal selection, we extend by moving
3759 * whichever end of the current selection is closer
3762 if (posdiff(selpoint
, term
->selstart
) <
3763 posdiff(term
->selend
, term
->selstart
) / 2) {
3764 term
->selanchor
= term
->selend
;
3765 decpos(term
->selanchor
);
3767 term
->selanchor
= term
->selstart
;
3771 * For rectangular selection, we have a choice of
3772 * _four_ places to put selanchor and selpoint: the
3773 * four corners of the selection.
3775 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3776 term
->selanchor
.x
= term
->selend
.x
-1;
3778 term
->selanchor
.x
= term
->selstart
.x
;
3780 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3781 term
->selanchor
.y
= term
->selend
.y
;
3783 term
->selanchor
.y
= term
->selstart
.y
;
3785 term
->selstate
= DRAGGING
;
3787 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3788 term
->selanchor
= selpoint
;
3789 term
->selstate
= DRAGGING
;
3790 if (term
->seltype
== LEXICOGRAPHIC
) {
3792 * For normal selection, we set (selstart,selend) to
3793 * (selpoint,selanchor) in some order.
3795 if (poslt(selpoint
, term
->selanchor
)) {
3796 term
->selstart
= selpoint
;
3797 term
->selend
= term
->selanchor
;
3798 incpos(term
->selend
);
3800 term
->selstart
= term
->selanchor
;
3801 term
->selend
= selpoint
;
3802 incpos(term
->selend
);
3806 * For rectangular selection, we may need to
3807 * interchange x and y coordinates (if the user has
3808 * dragged in the -x and +y directions, or vice versa).
3810 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3811 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3812 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3813 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3816 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3817 if (term
->selstate
== DRAGGING
) {
3819 * We've completed a selection. We now transfer the
3820 * data to the clipboard.
3822 clipme(term
, term
->selstart
, term
->selend
,
3823 (term
->seltype
== RECTANGULAR
));
3824 term
->selstate
= SELECTED
;
3826 term
->selstate
= NO_SELECTION
;
3827 } else if (b
== MBT_PASTE
3829 #if MULTICLICK_ONLY_EVENT
3830 || a
== MA_2CLK
|| a
== MA_3CLK
3833 request_paste(term
->frontend
);
3839 void term_nopaste(Terminal
*term
)
3841 if (term
->paste_len
== 0)
3843 sfree(term
->paste_buffer
);
3844 term
->paste_buffer
= NULL
;
3845 term
->paste_len
= 0;
3848 int term_paste_pending(Terminal
*term
)
3850 return term
->paste_len
!= 0;
3853 void term_paste(Terminal
*term
)
3855 long now
, paste_diff
;
3857 if (term
->paste_len
== 0)
3860 /* Don't wait forever to paste */
3861 if (term
->paste_hold
) {
3862 now
= GETTICKCOUNT();
3863 paste_diff
= now
- term
->last_paste
;
3864 if (paste_diff
>= 0 && paste_diff
< 450)
3867 term
->paste_hold
= 0;
3869 while (term
->paste_pos
< term
->paste_len
) {
3871 while (n
+ term
->paste_pos
< term
->paste_len
) {
3872 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3876 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3877 term
->paste_pos
+= n
;
3879 if (term
->paste_pos
< term
->paste_len
) {
3880 term
->paste_hold
= 1;
3884 sfree(term
->paste_buffer
);
3885 term
->paste_buffer
= NULL
;
3886 term
->paste_len
= 0;
3889 static void deselect(Terminal
*term
)
3891 term
->selstate
= NO_SELECTION
;
3892 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3895 void term_deselect(Terminal
*term
)
3901 int term_ldisc(Terminal
*term
, int option
)
3903 if (option
== LD_ECHO
)
3904 return term
->term_echoing
;
3905 if (option
== LD_EDIT
)
3906 return term
->term_editing
;
3911 * from_backend(), to get data from the backend for the terminal.
3913 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3915 Terminal
*term
= (Terminal
*)vterm
;
3919 bufchain_add(&term
->inbuf
, data
, len
);
3922 * term_out() always completely empties inbuf. Therefore,
3923 * there's no reason at all to return anything other than zero
3924 * from this function, because there _can't_ be a question of
3925 * the remote side needing to wait until term_out() has cleared
3928 * This is a slightly suboptimal way to deal with SSH2 - in
3929 * principle, the window mechanism would allow us to continue
3930 * to accept data on forwarded ports and X connections even
3931 * while the terminal processing was going slowly - but we
3932 * can't do the 100% right thing without moving the terminal
3933 * processing into a separate thread, and that might hurt
3934 * portability. So we manage stdout buffering the old SSH1 way:
3935 * if the terminal processing goes slowly, the whole SSH
3936 * connection stops accepting data until it's ready.
3938 * In practice, I can't imagine this causing serious trouble.
3943 void term_provide_logctx(Terminal
*term
, void *logctx
)
3945 term
->logctx
= logctx
;