10 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
15 /* Product-order comparisons for rectangular block selection. */
16 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
19 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
24 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25 #define CL_VT100 0x0002 /* VT100 */
26 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27 #define CL_VT102 0x0008 /* VT102 */
28 #define CL_VT220 0x0010 /* VT220 */
29 #define CL_VT320 0x0020 /* VT320 */
30 #define CL_VT420 0x0040 /* VT420 */
31 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
37 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
38 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39 #define TM_VT102 (TM_VT100AVO|CL_VT102)
40 #define TM_VT220 (TM_VT102|CL_VT220)
41 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
44 #define TM_PUTTY (0xFFFF)
46 #define compatibility(x) \
47 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
48 term->termstate=TOPLEVEL; \
51 #define compatibility2(x,y) \
52 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
57 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
59 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
60 const wchar_t sel_nl
[] = SEL_NL
;
63 * Internal prototypes.
65 static void do_paint(Terminal
*, Context
, int);
66 static void erase_lots(Terminal
*, int, int, int);
67 static void swap_screen(Terminal
*, int, int, int);
68 static void update_sbar(Terminal
*);
69 static void deselect(Terminal
*);
70 static void term_print_finish(Terminal
*);
71 #ifdef OPTIMISE_SCROLL
72 static void scroll_display(Terminal
*, int, int, int);
73 #endif /* OPTIMISE_SCROLL */
76 * Resize a line to make it `cols' columns wide.
78 unsigned long *resizeline(unsigned long *line
, int cols
)
81 unsigned long lineattrs
;
83 if (line
[0] != (unsigned long)cols
) {
85 * This line is the wrong length, which probably means it
86 * hasn't been accessed since a resize. Resize it now.
89 lineattrs
= line
[oldlen
+ 1];
90 line
= srealloc(line
, TSIZE
* (2 + cols
));
92 for (i
= oldlen
; i
< cols
; i
++)
93 line
[i
+ 1] = ERASE_CHAR
;
94 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
101 * Retrieve a line of the screen or of the scrollback, according to
102 * whether the y coordinate is non-negative or negative
105 unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
107 unsigned long *line
, *newline
;
112 whichtree
= term
->screen
;
115 whichtree
= term
->scrollback
;
116 treeindex
= y
+ count234(term
->scrollback
);
118 line
= index234(whichtree
, treeindex
);
120 /* We assume that we don't screw up and retrieve something out of range. */
121 assert(line
!= NULL
);
123 newline
= resizeline(line
, term
->cols
);
124 if (newline
!= line
) {
125 delpos234(whichtree
, treeindex
);
126 addpos234(whichtree
, newline
, treeindex
);
133 #define lineptr(x) lineptr(term,x,__LINE__)
136 * Set up power-on settings for the terminal.
138 static void power_on(Terminal
*term
)
140 term
->curs
.x
= term
->curs
.y
= 0;
141 term
->alt_x
= term
->alt_y
= 0;
142 term
->savecurs
.x
= term
->savecurs
.y
= 0;
143 term
->alt_t
= term
->marg_t
= 0;
144 if (term
->rows
!= -1)
145 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
147 term
->alt_b
= term
->marg_b
= 0;
148 if (term
->cols
!= -1) {
150 for (i
= 0; i
< term
->cols
; i
++)
151 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
153 term
->alt_om
= term
->dec_om
= term
->cfg
->dec_om
;
154 term
->alt_ins
= term
->insert
= FALSE
;
155 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
156 term
->alt_wrap
= term
->wrap
= term
->cfg
->wrap_mode
;
157 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
158 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
160 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
161 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
163 term
->in_vbell
= FALSE
;
165 term
->big_cursor
= 0;
166 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
167 term
->term_editing
= term
->term_echoing
= FALSE
;
168 term
->app_cursor_keys
= term
->cfg
->app_cursor
;
169 term
->app_keypad_keys
= term
->cfg
->app_keypad
;
170 term
->use_bce
= term
->cfg
->bce
;
171 term
->blink_is_real
= term
->cfg
->blinktext
;
172 term
->erase_char
= ERASE_CHAR
;
174 term_print_finish(term
);
177 for (i
= 0; i
< 256; i
++)
178 term
->wordness
[i
] = term
->cfg
->wordness
[i
];
181 swap_screen(term
, 1, FALSE
, FALSE
);
182 erase_lots(term
, FALSE
, TRUE
, TRUE
);
183 swap_screen(term
, 0, FALSE
, FALSE
);
184 erase_lots(term
, FALSE
, TRUE
, TRUE
);
189 * Force a screen update.
191 void term_update(Terminal
*term
)
194 ctx
= get_ctx(term
->frontend
);
196 int need_sbar_update
= term
->seen_disp_event
;
197 if (term
->seen_disp_event
&& term
->cfg
->scroll_on_disp
) {
198 term
->disptop
= 0; /* return to main screen */
199 term
->seen_disp_event
= 0;
200 need_sbar_update
= TRUE
;
202 if (need_sbar_update
)
204 do_paint(term
, ctx
, TRUE
);
205 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
211 * Called from front end when a keypress occurs, to trigger
212 * anything magical that needs to happen in that situation.
214 void term_seen_key_event(Terminal
*term
)
217 * On any keypress, clear the bell overload mechanism
218 * completely, on the grounds that large numbers of
219 * beeps coming from deliberate key action are likely
220 * to be intended (e.g. beeps from filename completion
221 * blocking repeatedly).
223 term
->beep_overloaded
= FALSE
;
224 while (term
->beephead
) {
225 struct beeptime
*tmp
= term
->beephead
;
226 term
->beephead
= tmp
->next
;
229 term
->beeptail
= NULL
;
233 * Reset the scrollback on keypress, if we're doing that.
235 if (term
->cfg
->scroll_on_key
) {
236 term
->disptop
= 0; /* return to main screen */
237 term
->seen_disp_event
= 1;
242 * Same as power_on(), but an external function.
244 void term_pwron(Terminal
*term
)
247 if (term
->ldisc
) /* cause ldisc to notice changes */
248 ldisc_send(term
->ldisc
, NULL
, 0, 0);
256 * When the user reconfigures us, we need to check the forbidden-
257 * alternate-screen config option, disable raw mouse mode if the
258 * user has disabled mouse reporting, and abandon a print job if
259 * the user has disabled printing.
261 void term_reconfig(Terminal
*term
)
263 if (term
->cfg
->no_alt_screen
)
264 swap_screen(term
, 0, FALSE
, FALSE
);
265 if (term
->cfg
->no_mouse_rep
) {
266 term
->xterm_mouse
= 0;
267 set_raw_mouse_mode(term
->frontend
, 0);
269 if (term
->cfg
->no_remote_charset
) {
270 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
271 term
->sco_acs
= term
->alt_sco_acs
= 0;
274 if (!*term
->cfg
->printer
) {
275 term_print_finish(term
);
280 * Clear the scrollback.
282 void term_clrsb(Terminal
*term
)
286 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
293 * Initialise the terminal.
295 Terminal
*term_init(Config
*mycfg
, void *frontend
)
300 * Allocate a new Terminal structure and initialise the fields
303 term
= smalloc(sizeof(Terminal
));
304 term
->frontend
= frontend
;
307 term
->compatibility_level
= TM_PUTTY
;
308 strcpy(term
->id_string
, "\033[?6c");
309 term
->last_blink
= term
->last_tblink
= 0;
310 term
->paste_buffer
= NULL
;
311 term
->last_paste
= 0;
312 bufchain_init(&term
->inbuf
);
313 bufchain_init(&term
->printer_buf
);
314 term
->printing
= term
->only_printing
= FALSE
;
315 term
->print_job
= NULL
;
316 term
->vt52_mode
= FALSE
;
317 term
->cr_lf_return
= FALSE
;
318 term
->seen_disp_event
= FALSE
;
319 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
320 term
->reset_132
= FALSE
;
321 term
->blinker
= term
->tblinker
= 0;
323 term
->repeat_off
= FALSE
;
324 term
->termstate
= TOPLEVEL
;
325 term
->selstate
= NO_SELECTION
;
328 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
330 term
->disptext
= term
->dispcurs
= NULL
;
333 term
->rows
= term
->cols
= -1;
335 term
->beephead
= term
->beeptail
= NULL
;
337 term
->lastbeep
= FALSE
;
338 term
->beep_overloaded
= FALSE
;
339 term
->attr_mask
= 0xffffffff;
340 term
->resize_fn
= NULL
;
341 term
->resize_ctx
= NULL
;
347 * Set up the terminal for a given size.
349 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
352 unsigned long *newdisp
, *line
;
355 int save_alt_which
= term
->alt_which
;
357 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
358 newsavelines
== term
->savelines
)
359 return; /* nothing to do */
362 swap_screen(term
, 0, FALSE
, FALSE
);
364 term
->alt_t
= term
->marg_t
= 0;
365 term
->alt_b
= term
->marg_b
= newrows
- 1;
367 if (term
->rows
== -1) {
368 term
->scrollback
= newtree234(NULL
);
369 term
->screen
= newtree234(NULL
);
374 * Resize the screen and scrollback. We only need to shift
375 * lines around within our data structures, because lineptr()
376 * will take care of resizing each individual line if
379 * - If the new screen and the old screen differ in length, we
380 * must shunt some lines in from the scrollback or out to
383 * - If doing that fails to provide us with enough material to
384 * fill the new screen (i.e. the number of rows needed in
385 * the new screen exceeds the total number in the previous
386 * screen+scrollback), we must invent some blank lines to
389 * - Then, if the new scrollback length is less than the
390 * amount of scrollback we actually have, we must throw some
393 sblen
= count234(term
->scrollback
);
394 /* Do this loop to expand the screen if newrows > rows */
395 for (i
= term
->rows
; i
< newrows
; i
++) {
397 line
= delpos234(term
->scrollback
, --sblen
);
399 line
= smalloc(TSIZE
* (newcols
+ 2));
401 for (j
= 0; j
<= newcols
; j
++)
402 line
[j
+ 1] = ERASE_CHAR
;
404 addpos234(term
->screen
, line
, 0);
406 /* Do this loop to shrink the screen if newrows < rows */
407 for (i
= newrows
; i
< term
->rows
; i
++) {
408 line
= delpos234(term
->screen
, 0);
409 addpos234(term
->scrollback
, line
, sblen
++);
411 assert(count234(term
->screen
) == newrows
);
412 while (sblen
> newsavelines
) {
413 line
= delpos234(term
->scrollback
, 0);
417 assert(count234(term
->scrollback
) <= newsavelines
);
420 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
421 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
422 newdisp
[i
] = ATTR_INVALID
;
423 sfree(term
->disptext
);
424 term
->disptext
= newdisp
;
425 term
->dispcurs
= NULL
;
427 newalt
= newtree234(NULL
);
428 for (i
= 0; i
< newrows
; i
++) {
429 line
= smalloc(TSIZE
* (newcols
+ 2));
431 for (j
= 0; j
<= newcols
; j
++)
432 line
[j
+ 1] = term
->erase_char
;
433 addpos234(newalt
, line
, i
);
435 if (term
->alt_screen
) {
436 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
438 freetree234(term
->alt_screen
);
440 term
->alt_screen
= newalt
;
442 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
445 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
446 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
450 term
->curs
.y
+= newrows
- term
->rows
;
451 if (term
->curs
.y
< 0)
453 if (term
->curs
.y
>= newrows
)
454 term
->curs
.y
= newrows
- 1;
455 if (term
->curs
.x
>= newcols
)
456 term
->curs
.x
= newcols
- 1;
457 term
->alt_x
= term
->alt_y
= 0;
458 term
->wrapnext
= term
->alt_wnext
= FALSE
;
460 term
->rows
= newrows
;
461 term
->cols
= newcols
;
462 term
->savelines
= newsavelines
;
465 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
470 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
474 * Hand a function and context pointer to the terminal which it can
475 * use to notify a back end of resizes.
477 void term_provide_resize_fn(Terminal
*term
,
478 void (*resize_fn
)(void *, int, int),
481 term
->resize_fn
= resize_fn
;
482 term
->resize_ctx
= resize_ctx
;
483 if (term
->cols
> 0 && term
->rows
> 0)
484 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
488 * Swap screens. If `reset' is TRUE and we have been asked to
489 * switch to the alternate screen, we must bring most of its
490 * configuration from the main screen and erase the contents of the
491 * alternate screen completely. (This is even true if we're already
492 * on it! Blame xterm.)
494 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
500 reset
= FALSE
; /* do no weird resetting if which==0 */
502 if (which
!= term
->alt_which
) {
503 term
->alt_which
= which
;
505 ttr
= term
->alt_screen
;
506 term
->alt_screen
= term
->screen
;
509 if (!reset
&& !keep_cur_pos
)
510 term
->curs
.x
= term
->alt_x
;
513 if (!reset
&& !keep_cur_pos
)
514 term
->curs
.y
= term
->alt_y
;
517 if (!reset
) term
->marg_t
= term
->alt_t
;
520 if (!reset
) term
->marg_b
= term
->alt_b
;
523 if (!reset
) term
->dec_om
= term
->alt_om
;
526 if (!reset
) term
->wrap
= term
->alt_wrap
;
529 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
532 if (!reset
) term
->insert
= term
->alt_ins
;
535 if (!reset
) term
->cset
= term
->alt_cset
;
538 if (!reset
) term
->utf
= term
->alt_utf
;
541 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
542 term
->alt_sco_acs
= t
;
545 if (reset
&& term
->screen
) {
547 * Yes, this _is_ supposed to honour background-colour-erase.
549 erase_lots(term
, FALSE
, TRUE
, TRUE
);
553 * This might not be possible if we're called during
561 * Update the scroll bar.
563 static void update_sbar(Terminal
*term
)
567 nscroll
= count234(term
->scrollback
);
569 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
570 nscroll
+ term
->disptop
, term
->rows
);
574 * Check whether the region bounded by the two pointers intersects
575 * the scroll region, and de-select the on-screen selection if so.
577 static void check_selection(Terminal
*term
, pos from
, pos to
)
579 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
584 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
585 * for backward.) `sb' is TRUE if the scrolling is permitted to
586 * affect the scrollback buffer.
588 * NB this function invalidates all pointers into lines of the
589 * screen data structures. In particular, you MUST call fix_cpos
590 * after calling scroll() and before doing anything else that
591 * uses the cpos shortcut pointer.
593 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
595 unsigned long *line
, *line2
;
596 int i
, seltop
, olddisptop
, shift
;
598 if (topline
!= 0 || term
->alt_which
!= 0)
601 olddisptop
= term
->disptop
;
605 line
= delpos234(term
->screen
, botline
);
606 line
= resizeline(line
, term
->cols
);
607 for (i
= 0; i
< term
->cols
; i
++)
608 line
[i
+ 1] = term
->erase_char
;
609 line
[term
->cols
+ 1] = 0;
610 addpos234(term
->screen
, line
, topline
);
612 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
614 if (term
->selstart
.y
> botline
) {
615 term
->selstart
.y
= botline
;
616 term
->selstart
.x
= 0;
619 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
621 if (term
->selend
.y
> botline
) {
622 term
->selend
.y
= botline
;
631 line
= delpos234(term
->screen
, topline
);
632 if (sb
&& term
->savelines
> 0) {
633 int sblen
= count234(term
->scrollback
);
635 * We must add this line to the scrollback. We'll
636 * remove a line from the top of the scrollback to
637 * replace it, or allocate a new one if the
638 * scrollback isn't full.
640 if (sblen
== term
->savelines
) {
641 sblen
--, line2
= delpos234(term
->scrollback
, 0);
643 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
644 line2
[0] = term
->cols
;
646 addpos234(term
->scrollback
, line
, sblen
);
650 * If the user is currently looking at part of the
651 * scrollback, and they haven't enabled any options
652 * that are going to reset the scrollback as a
653 * result of this movement, then the chances are
654 * they'd like to keep looking at the same line. So
655 * we move their viewpoint at the same rate as the
656 * scroll, at least until their viewpoint hits the
657 * top end of the scrollback buffer, at which point
658 * we don't have the choice any more.
660 * Thanks to Jan Holmen Holsten for the idea and
661 * initial implementation.
663 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
666 line
= resizeline(line
, term
->cols
);
667 for (i
= 0; i
< term
->cols
; i
++)
668 line
[i
+ 1] = term
->erase_char
;
669 line
[term
->cols
+ 1] = 0;
670 addpos234(term
->screen
, line
, botline
);
673 * If the selection endpoints move into the scrollback,
674 * we keep them moving until they hit the top. However,
675 * of course, if the line _hasn't_ moved into the
676 * scrollback then we don't do this, and cut them off
677 * at the top of the scroll region.
679 * This applies to selstart and selend (for an existing
680 * selection), and also selanchor (for one being
681 * selected as we speak).
683 seltop
= sb ?
-term
->savelines
: topline
;
685 if (term
->selstart
.y
>= seltop
&&
686 term
->selstart
.y
<= botline
) {
688 if (term
->selstart
.y
< seltop
) {
689 term
->selstart
.y
= seltop
;
690 term
->selstart
.x
= 0;
693 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
695 if (term
->selend
.y
< seltop
) {
696 term
->selend
.y
= seltop
;
700 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
702 if (term
->selanchor
.y
< seltop
) {
703 term
->selanchor
.y
= seltop
;
704 term
->selanchor
.x
= 0;
711 #ifdef OPTIMISE_SCROLL
712 shift
+= term
->disptop
- olddisptop
;
713 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
714 scroll_display(term
, topline
, botline
, shift
);
715 #endif /* OPTIMISE_SCROLL */
718 #ifdef OPTIMISE_SCROLL
720 * Scroll the physical display, and our conception of it in disptext.
722 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
724 unsigned long *start
, *end
;
725 int distance
, size
, i
;
727 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
728 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
729 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
730 size
= end
- start
- distance
;
732 memmove(start
, start
+ distance
, size
* TSIZE
);
733 if (term
->dispcurs
>= start
+ distance
&&
734 term
->dispcurs
<= start
+ distance
+ size
)
735 term
->dispcurs
-= distance
;
736 for (i
= 0; i
< distance
; i
++)
737 (start
+ size
)[i
] |= ATTR_INVALID
;
739 memmove(start
+ distance
, start
, size
* TSIZE
);
740 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
741 term
->dispcurs
+= distance
;
742 for (i
= 0; i
< distance
; i
++)
743 start
[i
] |= ATTR_INVALID
;
745 do_scroll(term
->frontend
, topline
, botline
, lines
);
747 #endif /* OPTIMISE_SCROLL */
750 * Move the cursor to a given position, clipping at boundaries. We
751 * may or may not want to clip at the scroll margin: marg_clip is 0
752 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
753 * even _being_ outside the margins.
755 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
762 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
765 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
776 term
->wrapnext
= FALSE
;
780 * Save or restore the cursor and SGR mode.
782 static void save_cursor(Terminal
*term
, int save
)
785 term
->savecurs
= term
->curs
;
786 term
->save_attr
= term
->curr_attr
;
787 term
->save_cset
= term
->cset
;
788 term
->save_utf
= term
->utf
;
789 term
->save_wnext
= term
->wrapnext
;
790 term
->save_csattr
= term
->cset_attr
[term
->cset
];
791 term
->save_sco_acs
= term
->sco_acs
;
793 term
->curs
= term
->savecurs
;
794 /* Make sure the window hasn't shrunk since the save */
795 if (term
->curs
.x
>= term
->cols
)
796 term
->curs
.x
= term
->cols
- 1;
797 if (term
->curs
.y
>= term
->rows
)
798 term
->curs
.y
= term
->rows
- 1;
800 term
->curr_attr
= term
->save_attr
;
801 term
->cset
= term
->save_cset
;
802 term
->utf
= term
->save_utf
;
803 term
->wrapnext
= term
->save_wnext
;
805 * wrapnext might reset to False if the x position is no
806 * longer at the rightmost edge.
808 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
809 term
->wrapnext
= FALSE
;
810 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
811 term
->sco_acs
= term
->save_sco_acs
;
814 term
->erase_char
= (' ' | ATTR_ASCII
|
816 (ATTR_FGMASK
| ATTR_BGMASK
)));
821 * Erase a large portion of the screen: the whole screen, or the
822 * whole line, or parts thereof.
824 static void erase_lots(Terminal
*term
,
825 int line_only
, int from_begin
, int to_end
)
829 unsigned long *ldata
;
832 start
.y
= term
->curs
.y
;
834 end
.y
= term
->curs
.y
+ 1;
851 check_selection(term
, start
, end
);
853 /* Clear screen also forces a full window redraw, just in case. */
854 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
855 term_invalidate(term
);
857 ldata
= lineptr(start
.y
);
858 while (poslt(start
, end
)) {
859 if (start
.x
== term
->cols
&& !erase_lattr
)
860 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
862 ldata
[start
.x
] = term
->erase_char
;
863 if (incpos(start
) && start
.y
< term
->rows
)
864 ldata
= lineptr(start
.y
);
869 * Insert or delete characters within the current line. n is +ve if
870 * insertion is desired, and -ve for deletion.
872 static void insch(Terminal
*term
, int n
)
874 int dir
= (n
< 0 ?
-1 : +1);
877 unsigned long *ldata
;
879 n
= (n
< 0 ?
-n
: n
);
880 if (n
> term
->cols
- term
->curs
.x
)
881 n
= term
->cols
- term
->curs
.x
;
882 m
= term
->cols
- term
->curs
.x
- n
;
883 cursplus
.y
= term
->curs
.y
;
884 cursplus
.x
= term
->curs
.x
+ n
;
885 check_selection(term
, term
->curs
, cursplus
);
886 ldata
= lineptr(term
->curs
.y
);
888 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
890 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
892 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
894 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
899 * Toggle terminal mode `mode' to state `state'. (`query' indicates
900 * whether the mode is a DEC private one or a normal one.)
902 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
908 case 1: /* application cursor keys */
909 term
->app_cursor_keys
= state
;
911 case 2: /* VT52 mode */
912 term
->vt52_mode
= !state
;
913 if (term
->vt52_mode
) {
914 term
->blink_is_real
= FALSE
;
915 term
->vt52_bold
= FALSE
;
917 term
->blink_is_real
= term
->cfg
->blinktext
;
920 case 3: /* 80/132 columns */
922 if (!term
->cfg
->no_remote_resize
)
923 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
924 term
->reset_132
= state
;
926 case 5: /* reverse video */
928 * Toggle reverse video. If we receive an OFF within the
929 * visual bell timeout period after an ON, we trigger an
930 * effective visual bell, so that ESC[?5hESC[?5l will
931 * always be an actually _visible_ visual bell.
933 ticks
= GETTICKCOUNT();
934 /* turn off a previous vbell to avoid inconsistencies */
935 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
936 term
->in_vbell
= FALSE
;
937 if (term
->rvideo
&& !state
&& /* we're turning it off... */
938 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
939 /* If there's no vbell timeout already, or this one lasts
940 * longer, replace vbell_timeout with ours. */
941 if (!term
->in_vbell
||
942 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
944 term
->vbell_startpoint
= term
->rvbell_startpoint
;
945 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
946 } else if (!term
->rvideo
&& state
) {
947 /* This is an ON, so we notice the time and save it. */
948 term
->rvbell_startpoint
= ticks
;
950 term
->rvideo
= state
;
951 term
->seen_disp_event
= TRUE
;
955 case 6: /* DEC origin mode */
956 term
->dec_om
= state
;
958 case 7: /* auto wrap */
961 case 8: /* auto key repeat */
962 term
->repeat_off
= !state
;
964 case 10: /* set local edit mode */
965 term
->term_editing
= state
;
966 if (term
->ldisc
) /* cause ldisc to notice changes */
967 ldisc_send(term
->ldisc
, NULL
, 0, 0);
969 case 25: /* enable/disable cursor */
970 compatibility2(OTHER
, VT220
);
971 term
->cursor_on
= state
;
972 term
->seen_disp_event
= TRUE
;
974 case 47: /* alternate screen */
975 compatibility(OTHER
);
977 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, FALSE
, FALSE
);
980 case 1000: /* xterm mouse 1 */
981 term
->xterm_mouse
= state ?
1 : 0;
982 set_raw_mouse_mode(term
->frontend
, state
);
984 case 1002: /* xterm mouse 2 */
985 term
->xterm_mouse
= state ?
2 : 0;
986 set_raw_mouse_mode(term
->frontend
, state
);
988 case 1047: /* alternate screen */
989 compatibility(OTHER
);
991 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, TRUE
);
994 case 1048: /* save/restore cursor */
995 save_cursor(term
, state
);
996 if (!state
) term
->seen_disp_event
= TRUE
;
998 case 1049: /* cursor & alternate screen */
1000 save_cursor(term
, state
);
1001 if (!state
) term
->seen_disp_event
= TRUE
;
1002 compatibility(OTHER
);
1004 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1006 save_cursor(term
, state
);
1011 case 4: /* set insert mode */
1012 compatibility(VT102
);
1013 term
->insert
= state
;
1015 case 12: /* set echo mode */
1016 term
->term_echoing
= !state
;
1017 if (term
->ldisc
) /* cause ldisc to notice changes */
1018 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1020 case 20: /* Return sends ... */
1021 term
->cr_lf_return
= state
;
1023 case 34: /* Make cursor BIG */
1024 compatibility2(OTHER
, VT220
);
1025 term
->big_cursor
= !state
;
1030 * Process an OSC sequence: set window title or icon name.
1032 static void do_osc(Terminal
*term
)
1035 while (term
->osc_strlen
--)
1036 term
->wordness
[(unsigned char)
1037 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1039 term
->osc_string
[term
->osc_strlen
] = '\0';
1040 switch (term
->esc_args
[0]) {
1043 if (!term
->cfg
->no_remote_wintitle
)
1044 set_icon(term
->frontend
, term
->osc_string
);
1045 if (term
->esc_args
[0] == 1)
1047 /* fall through: parameter 0 means set both */
1050 if (!term
->cfg
->no_remote_wintitle
)
1051 set_title(term
->frontend
, term
->osc_string
);
1058 * ANSI printing routines.
1060 static void term_print_setup(Terminal
*term
)
1062 bufchain_clear(&term
->printer_buf
);
1063 term
->print_job
= printer_start_job(term
->cfg
->printer
);
1065 static void term_print_flush(Terminal
*term
)
1070 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1071 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1074 printer_job_data(term
->print_job
, data
, len
);
1075 bufchain_consume(&term
->printer_buf
, len
);
1078 static void term_print_finish(Terminal
*term
)
1084 if (!term
->printing
&& !term
->only_printing
)
1085 return; /* we need do nothing */
1087 term_print_flush(term
);
1088 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1089 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1091 if (c
== '\033' || c
== '\233') {
1092 bufchain_consume(&term
->printer_buf
, size
);
1095 printer_job_data(term
->print_job
, &c
, 1);
1096 bufchain_consume(&term
->printer_buf
, 1);
1099 printer_finish_job(term
->print_job
);
1100 term
->print_job
= NULL
;
1101 term
->printing
= term
->only_printing
= FALSE
;
1105 * Remove everything currently in `inbuf' and stick it up on the
1106 * in-memory display. There's a big state machine in here to
1107 * process escape sequences...
1109 void term_out(Terminal
*term
)
1112 unsigned char localbuf
[256], *chars
;
1117 chars
= NULL
; /* placate compiler warnings */
1118 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1122 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1123 if (nchars
> sizeof(localbuf
))
1124 nchars
= sizeof(localbuf
);
1125 memcpy(localbuf
, ret
, nchars
);
1126 bufchain_consume(&term
->inbuf
, nchars
);
1128 assert(chars
!= NULL
);
1134 * Optionally log the session traffic to a file. Useful for
1135 * debugging and possibly also useful for actual logging.
1137 if (term
->cfg
->logtype
== LGTYP_DEBUG
&& term
->logctx
)
1138 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1144 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1145 * be able to display 8-bit characters, but I'll let that go 'cause
1150 * If we're printing, add the character to the printer
1153 if (term
->printing
) {
1154 bufchain_add(&term
->printer_buf
, &c
, 1);
1157 * If we're in print-only mode, we use a much simpler
1158 * state machine designed only to recognise the ESC[4i
1159 * termination sequence.
1161 if (term
->only_printing
) {
1163 term
->print_state
= 1;
1164 else if (c
== (unsigned char)'\233')
1165 term
->print_state
= 2;
1166 else if (c
== '[' && term
->print_state
== 1)
1167 term
->print_state
= 2;
1168 else if (c
== '4' && term
->print_state
== 2)
1169 term
->print_state
= 3;
1170 else if (c
== 'i' && term
->print_state
== 3)
1171 term
->print_state
= 4;
1173 term
->print_state
= 0;
1174 if (term
->print_state
== 4) {
1175 term_print_finish(term
);
1181 /* First see about all those translations. */
1182 if (term
->termstate
== TOPLEVEL
) {
1184 switch (term
->utf_state
) {
1187 /* UTF-8 must be stateless so we ignore iso2022. */
1188 if (unitab_ctrl
[c
] != 0xFF)
1190 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1192 } else if ((c
& 0xe0) == 0xc0) {
1193 term
->utf_size
= term
->utf_state
= 1;
1194 term
->utf_char
= (c
& 0x1f);
1195 } else if ((c
& 0xf0) == 0xe0) {
1196 term
->utf_size
= term
->utf_state
= 2;
1197 term
->utf_char
= (c
& 0x0f);
1198 } else if ((c
& 0xf8) == 0xf0) {
1199 term
->utf_size
= term
->utf_state
= 3;
1200 term
->utf_char
= (c
& 0x07);
1201 } else if ((c
& 0xfc) == 0xf8) {
1202 term
->utf_size
= term
->utf_state
= 4;
1203 term
->utf_char
= (c
& 0x03);
1204 } else if ((c
& 0xfe) == 0xfc) {
1205 term
->utf_size
= term
->utf_state
= 5;
1206 term
->utf_char
= (c
& 0x01);
1217 if ((c
& 0xC0) != 0x80) {
1220 term
->utf_state
= 0;
1223 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1224 if (--term
->utf_state
)
1229 /* Is somebody trying to be evil! */
1231 (c
< 0x800 && term
->utf_size
>= 2) ||
1232 (c
< 0x10000 && term
->utf_size
>= 3) ||
1233 (c
< 0x200000 && term
->utf_size
>= 4) ||
1234 (c
< 0x4000000 && term
->utf_size
>= 5))
1237 /* Unicode line separator and paragraph separator are CR-LF */
1238 if (c
== 0x2028 || c
== 0x2029)
1241 /* High controls are probably a Baaad idea too. */
1245 /* The UTF-16 surrogates are not nice either. */
1246 /* The standard give the option of decoding these:
1247 * I don't want to! */
1248 if (c
>= 0xD800 && c
< 0xE000)
1251 /* ISO 10646 characters now limited to UTF-16 range. */
1255 /* This is currently a TagPhobic application.. */
1256 if (c
>= 0xE0000 && c
<= 0xE007F)
1259 /* U+FEFF is best seen as a null. */
1262 /* But U+FFFE is an error. */
1263 if (c
== 0xFFFE || c
== 0xFFFF)
1266 /* Oops this is a 16bit implementation */
1271 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1272 else if(term
->sco_acs
&&
1273 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1275 if (term
->sco_acs
== 2) c
^= 0x80;
1278 switch (term
->cset_attr
[term
->cset
]) {
1280 * Linedraw characters are different from 'ESC ( B'
1281 * only for a small range. For ones outside that
1282 * range, make sure we use the same font as well as
1283 * the same encoding.
1286 if (unitab_ctrl
[c
] != 0xFF)
1289 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1293 /* If UK-ASCII, make the '#' a LineDraw Pound */
1295 c
= '}' | ATTR_LINEDRW
;
1298 /*FALLTHROUGH*/ case ATTR_ASCII
:
1299 if (unitab_ctrl
[c
] != 0xFF)
1302 c
= ((unsigned char) c
) | ATTR_ASCII
;
1305 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1311 /* How about C1 controls ? */
1312 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1313 !term
->vt52_mode
&& has_compat(VT220
)) {
1314 term
->termstate
= SEEN_ESC
;
1315 term
->esc_query
= FALSE
;
1316 c
= '@' + (c
& 0x1F);
1319 /* Or the GL control. */
1320 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1321 if (term
->curs
.x
&& !term
->wrapnext
)
1323 term
->wrapnext
= FALSE
;
1325 if (!term
->cfg
->no_dbackspace
) /* destructive bksp might be disabled */
1326 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1328 /* Or normal C0 controls. */
1329 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1331 case '\005': /* terminal type query */
1332 /* Strictly speaking this is VT100 but a VT100 defaults to
1333 * no response. Other terminals respond at their option.
1335 * Don't put a CR in the default string as this tends to
1336 * upset some weird software.
1338 * An xterm returns "xterm" (5 characters)
1340 compatibility(ANSIMIN
);
1342 char abuf
[256], *s
, *d
;
1344 for (s
= term
->cfg
->answerback
, d
= abuf
; *s
; s
++) {
1346 if (*s
>= 'a' && *s
<= 'z')
1347 *d
++ = (*s
- ('a' - 1));
1348 else if ((*s
>= '@' && *s
<= '_') ||
1349 *s
== '?' || (*s
& 0x80))
1354 } else if (*s
== '^') {
1359 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1365 struct beeptime
*newbeep
;
1366 unsigned long ticks
;
1368 ticks
= GETTICKCOUNT();
1370 if (!term
->beep_overloaded
) {
1371 newbeep
= smalloc(sizeof(struct beeptime
));
1372 newbeep
->ticks
= ticks
;
1373 newbeep
->next
= NULL
;
1374 if (!term
->beephead
)
1375 term
->beephead
= newbeep
;
1377 term
->beeptail
->next
= newbeep
;
1378 term
->beeptail
= newbeep
;
1383 * Throw out any beeps that happened more than
1386 while (term
->beephead
&&
1387 term
->beephead
->ticks
< ticks
- term
->cfg
->bellovl_t
) {
1388 struct beeptime
*tmp
= term
->beephead
;
1389 term
->beephead
= tmp
->next
;
1391 if (!term
->beephead
)
1392 term
->beeptail
= NULL
;
1396 if (term
->cfg
->bellovl
&& term
->beep_overloaded
&&
1397 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
->bellovl_s
) {
1399 * If we're currently overloaded and the
1400 * last beep was more than s seconds ago,
1401 * leave overload mode.
1403 term
->beep_overloaded
= FALSE
;
1404 } else if (term
->cfg
->bellovl
&& !term
->beep_overloaded
&&
1405 term
->nbeeps
>= term
->cfg
->bellovl_n
) {
1407 * Now, if we have n or more beeps
1408 * remaining in the queue, go into overload
1411 term
->beep_overloaded
= TRUE
;
1413 term
->lastbeep
= ticks
;
1416 * Perform an actual beep if we're not overloaded.
1418 if (!term
->cfg
->bellovl
|| !term
->beep_overloaded
) {
1419 beep(term
->frontend
, term
->cfg
->beep
);
1420 if (term
->cfg
->beep
== BELL_VISUAL
) {
1421 term
->in_vbell
= TRUE
;
1422 term
->vbell_startpoint
= ticks
;
1430 if (term
->curs
.x
== 0 &&
1431 (term
->curs
.y
== 0 || term
->wrap
== 0))
1433 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1434 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1435 else if (term
->wrapnext
)
1436 term
->wrapnext
= FALSE
;
1440 term
->seen_disp_event
= TRUE
;
1443 compatibility(VT100
);
1447 compatibility(VT100
);
1451 if (term
->vt52_mode
)
1452 term
->termstate
= VT52_ESC
;
1454 compatibility(ANSIMIN
);
1455 term
->termstate
= SEEN_ESC
;
1456 term
->esc_query
= FALSE
;
1461 term
->wrapnext
= FALSE
;
1463 term
->seen_disp_event
= TRUE
;
1464 term
->paste_hold
= 0;
1466 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1469 if (has_compat(SCOANSI
)) {
1470 move(term
, 0, 0, 0);
1471 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1473 term
->wrapnext
= FALSE
;
1474 term
->seen_disp_event
= 1;
1478 compatibility(VT100
);
1480 if (term
->curs
.y
== term
->marg_b
)
1481 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1482 else if (term
->curs
.y
< term
->rows
- 1)
1484 if (term
->cfg
->lfhascr
)
1487 term
->wrapnext
= FALSE
;
1488 term
->seen_disp_event
= 1;
1489 term
->paste_hold
= 0;
1491 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1495 pos old_curs
= term
->curs
;
1496 unsigned long *ldata
= lineptr(term
->curs
.y
);
1500 } while (term
->curs
.x
< term
->cols
- 1 &&
1501 !term
->tabs
[term
->curs
.x
]);
1503 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1504 if (term
->curs
.x
>= term
->cols
/ 2)
1505 term
->curs
.x
= term
->cols
/ 2 - 1;
1507 if (term
->curs
.x
>= term
->cols
)
1508 term
->curs
.x
= term
->cols
- 1;
1512 check_selection(term
, old_curs
, term
->curs
);
1514 term
->seen_disp_event
= TRUE
;
1518 switch (term
->termstate
) {
1520 /* Only graphic characters get this far;
1521 * ctrls are stripped above */
1522 if (term
->wrapnext
&& term
->wrap
) {
1523 term
->cpos
[1] |= LATTR_WRAPPED
;
1524 if (term
->curs
.y
== term
->marg_b
)
1525 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1526 else if (term
->curs
.y
< term
->rows
- 1)
1530 term
->wrapnext
= FALSE
;
1534 if (term
->selstate
!= NO_SELECTION
) {
1535 pos cursplus
= term
->curs
;
1537 check_selection(term
, term
->curs
, cursplus
);
1539 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1541 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1543 extern int wcwidth(wchar_t ucs
);
1548 width
= wcwidth((wchar_t) c
);
1551 *term
->cpos
++ = c
| term
->curr_attr
;
1552 if (++term
->curs
.x
== term
->cols
) {
1553 *term
->cpos
|= LATTR_WRAPPED
;
1554 if (term
->curs
.y
== term
->marg_b
)
1555 scroll(term
, term
->marg_t
, term
->marg_b
,
1557 else if (term
->curs
.y
< term
->rows
- 1)
1562 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1565 *term
->cpos
++ = c
| term
->curr_attr
;
1572 if (term
->curs
.x
== term
->cols
) {
1575 term
->wrapnext
= TRUE
;
1576 if (term
->wrap
&& term
->vt52_mode
) {
1577 term
->cpos
[1] |= LATTR_WRAPPED
;
1578 if (term
->curs
.y
== term
->marg_b
)
1579 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1580 else if (term
->curs
.y
< term
->rows
- 1)
1584 term
->wrapnext
= FALSE
;
1587 term
->seen_disp_event
= 1;
1592 * This state is virtually identical to SEEN_ESC, with the
1593 * exception that we have an OSC sequence in the pipeline,
1594 * and _if_ we see a backslash, we process it.
1598 term
->termstate
= TOPLEVEL
;
1601 /* else fall through */
1603 if (c
>= ' ' && c
<= '/') {
1604 if (term
->esc_query
)
1605 term
->esc_query
= -1;
1607 term
->esc_query
= c
;
1610 term
->termstate
= TOPLEVEL
;
1611 switch (ANSI(c
, term
->esc_query
)) {
1612 case '[': /* enter CSI mode */
1613 term
->termstate
= SEEN_CSI
;
1614 term
->esc_nargs
= 1;
1615 term
->esc_args
[0] = ARG_DEFAULT
;
1616 term
->esc_query
= FALSE
;
1618 case ']': /* xterm escape sequences */
1619 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1620 compatibility(OTHER
);
1621 term
->termstate
= SEEN_OSC
;
1622 term
->esc_args
[0] = 0;
1624 case '7': /* save cursor */
1625 compatibility(VT100
);
1626 save_cursor(term
, TRUE
);
1628 case '8': /* restore cursor */
1629 compatibility(VT100
);
1630 save_cursor(term
, FALSE
);
1631 term
->seen_disp_event
= TRUE
;
1634 compatibility(VT100
);
1635 term
->app_keypad_keys
= TRUE
;
1638 compatibility(VT100
);
1639 term
->app_keypad_keys
= FALSE
;
1641 case 'D': /* exactly equivalent to LF */
1642 compatibility(VT100
);
1643 if (term
->curs
.y
== term
->marg_b
)
1644 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1645 else if (term
->curs
.y
< term
->rows
- 1)
1648 term
->wrapnext
= FALSE
;
1649 term
->seen_disp_event
= TRUE
;
1651 case 'E': /* exactly equivalent to CR-LF */
1652 compatibility(VT100
);
1654 if (term
->curs
.y
== term
->marg_b
)
1655 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1656 else if (term
->curs
.y
< term
->rows
- 1)
1659 term
->wrapnext
= FALSE
;
1660 term
->seen_disp_event
= TRUE
;
1662 case 'M': /* reverse index - backwards LF */
1663 compatibility(VT100
);
1664 if (term
->curs
.y
== term
->marg_t
)
1665 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1666 else if (term
->curs
.y
> 0)
1669 term
->wrapnext
= FALSE
;
1670 term
->seen_disp_event
= TRUE
;
1672 case 'Z': /* terminal type query */
1673 compatibility(VT100
);
1675 ldisc_send(term
->ldisc
, term
->id_string
,
1676 strlen(term
->id_string
), 0);
1678 case 'c': /* restore power-on settings */
1679 compatibility(VT100
);
1681 if (term
->ldisc
) /* cause ldisc to notice changes */
1682 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1683 if (term
->reset_132
) {
1684 if (!term
->cfg
->no_remote_resize
)
1685 request_resize(term
->frontend
, 80, term
->rows
);
1686 term
->reset_132
= 0;
1690 term
->seen_disp_event
= TRUE
;
1692 case 'H': /* set a tab */
1693 compatibility(VT100
);
1694 term
->tabs
[term
->curs
.x
] = TRUE
;
1697 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1698 compatibility(VT100
);
1700 unsigned long *ldata
;
1704 for (i
= 0; i
< term
->rows
; i
++) {
1706 for (j
= 0; j
< term
->cols
; j
++)
1707 ldata
[j
] = ATTR_DEFAULT
| 'E';
1708 ldata
[term
->cols
] = 0;
1711 term
->seen_disp_event
= TRUE
;
1712 scrtop
.x
= scrtop
.y
= 0;
1714 scrbot
.y
= term
->rows
;
1715 check_selection(term
, scrtop
, scrbot
);
1719 case ANSI('3', '#'):
1720 case ANSI('4', '#'):
1721 case ANSI('5', '#'):
1722 case ANSI('6', '#'):
1723 compatibility(VT100
);
1725 unsigned long nlattr
;
1726 unsigned long *ldata
;
1727 switch (ANSI(c
, term
->esc_query
)) {
1728 case ANSI('3', '#'):
1731 case ANSI('4', '#'):
1734 case ANSI('5', '#'):
1735 nlattr
= LATTR_NORM
;
1737 default: /* spiritually case ANSI('6', '#'): */
1738 nlattr
= LATTR_WIDE
;
1741 ldata
= lineptr(term
->curs
.y
);
1742 ldata
[term
->cols
] &= ~LATTR_MODE
;
1743 ldata
[term
->cols
] |= nlattr
;
1747 case ANSI('A', '('):
1748 compatibility(VT100
);
1749 if (!term
->cfg
->no_remote_charset
)
1750 term
->cset_attr
[0] = ATTR_GBCHR
;
1752 case ANSI('B', '('):
1753 compatibility(VT100
);
1754 if (!term
->cfg
->no_remote_charset
)
1755 term
->cset_attr
[0] = ATTR_ASCII
;
1757 case ANSI('0', '('):
1758 compatibility(VT100
);
1759 if (!term
->cfg
->no_remote_charset
)
1760 term
->cset_attr
[0] = ATTR_LINEDRW
;
1762 case ANSI('U', '('):
1763 compatibility(OTHER
);
1764 if (!term
->cfg
->no_remote_charset
)
1765 term
->cset_attr
[0] = ATTR_SCOACS
;
1768 case ANSI('A', ')'):
1769 compatibility(VT100
);
1770 if (!term
->cfg
->no_remote_charset
)
1771 term
->cset_attr
[1] = ATTR_GBCHR
;
1773 case ANSI('B', ')'):
1774 compatibility(VT100
);
1775 if (!term
->cfg
->no_remote_charset
)
1776 term
->cset_attr
[1] = ATTR_ASCII
;
1778 case ANSI('0', ')'):
1779 compatibility(VT100
);
1780 if (!term
->cfg
->no_remote_charset
)
1781 term
->cset_attr
[1] = ATTR_LINEDRW
;
1783 case ANSI('U', ')'):
1784 compatibility(OTHER
);
1785 if (!term
->cfg
->no_remote_charset
)
1786 term
->cset_attr
[1] = ATTR_SCOACS
;
1789 case ANSI('8', '%'): /* Old Linux code */
1790 case ANSI('G', '%'):
1791 compatibility(OTHER
);
1792 if (!term
->cfg
->no_remote_charset
)
1795 case ANSI('@', '%'):
1796 compatibility(OTHER
);
1797 if (!term
->cfg
->no_remote_charset
)
1803 term
->termstate
= TOPLEVEL
; /* default */
1805 if (term
->esc_nargs
<= ARGS_MAX
) {
1806 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1807 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1808 term
->esc_args
[term
->esc_nargs
- 1] =
1809 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1811 term
->termstate
= SEEN_CSI
;
1812 } else if (c
== ';') {
1813 if (++term
->esc_nargs
<= ARGS_MAX
)
1814 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1815 term
->termstate
= SEEN_CSI
;
1816 } else if (c
< '@') {
1817 if (term
->esc_query
)
1818 term
->esc_query
= -1;
1820 term
->esc_query
= TRUE
;
1822 term
->esc_query
= c
;
1823 term
->termstate
= SEEN_CSI
;
1825 switch (ANSI(c
, term
->esc_query
)) {
1826 case 'A': /* move up N lines */
1827 move(term
, term
->curs
.x
,
1828 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1829 term
->seen_disp_event
= TRUE
;
1831 case 'e': /* move down N lines */
1832 compatibility(ANSI
);
1835 move(term
, term
->curs
.x
,
1836 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1837 term
->seen_disp_event
= TRUE
;
1839 case ANSI('c', '>'): /* report xterm version */
1840 compatibility(OTHER
);
1841 /* this reports xterm version 136 so that VIM can
1842 use the drag messages from the mouse reporting */
1844 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1846 case 'a': /* move right N cols */
1847 compatibility(ANSI
);
1850 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1852 term
->seen_disp_event
= TRUE
;
1854 case 'D': /* move left N cols */
1855 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1857 term
->seen_disp_event
= TRUE
;
1859 case 'E': /* move down N lines and CR */
1860 compatibility(ANSI
);
1862 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1863 term
->seen_disp_event
= TRUE
;
1865 case 'F': /* move up N lines and CR */
1866 compatibility(ANSI
);
1868 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1869 term
->seen_disp_event
= TRUE
;
1872 case '`': /* set horizontal posn */
1873 compatibility(ANSI
);
1874 move(term
, def(term
->esc_args
[0], 1) - 1,
1876 term
->seen_disp_event
= TRUE
;
1878 case 'd': /* set vertical posn */
1879 compatibility(ANSI
);
1880 move(term
, term
->curs
.x
,
1881 ((term
->dec_om ? term
->marg_t
: 0) +
1882 def(term
->esc_args
[0], 1) - 1),
1883 (term
->dec_om ?
2 : 0));
1884 term
->seen_disp_event
= TRUE
;
1887 case 'f': /* set horz and vert posns at once */
1888 if (term
->esc_nargs
< 2)
1889 term
->esc_args
[1] = ARG_DEFAULT
;
1890 move(term
, def(term
->esc_args
[1], 1) - 1,
1891 ((term
->dec_om ? term
->marg_t
: 0) +
1892 def(term
->esc_args
[0], 1) - 1),
1893 (term
->dec_om ?
2 : 0));
1894 term
->seen_disp_event
= TRUE
;
1896 case 'J': /* erase screen or parts of it */
1898 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1901 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1904 term
->seen_disp_event
= TRUE
;
1906 case 'K': /* erase line or parts of it */
1908 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1911 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1913 term
->seen_disp_event
= TRUE
;
1915 case 'L': /* insert lines */
1916 compatibility(VT102
);
1917 if (term
->curs
.y
<= term
->marg_b
)
1918 scroll(term
, term
->curs
.y
, term
->marg_b
,
1919 -def(term
->esc_args
[0], 1), FALSE
);
1921 term
->seen_disp_event
= TRUE
;
1923 case 'M': /* delete lines */
1924 compatibility(VT102
);
1925 if (term
->curs
.y
<= term
->marg_b
)
1926 scroll(term
, term
->curs
.y
, term
->marg_b
,
1927 def(term
->esc_args
[0], 1),
1930 term
->seen_disp_event
= TRUE
;
1932 case '@': /* insert chars */
1933 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1934 compatibility(VT102
);
1935 insch(term
, def(term
->esc_args
[0], 1));
1936 term
->seen_disp_event
= TRUE
;
1938 case 'P': /* delete chars */
1939 compatibility(VT102
);
1940 insch(term
, -def(term
->esc_args
[0], 1));
1941 term
->seen_disp_event
= TRUE
;
1943 case 'c': /* terminal type query */
1944 compatibility(VT100
);
1945 /* This is the response for a VT102 */
1947 ldisc_send(term
->ldisc
, term
->id_string
,
1948 strlen(term
->id_string
), 0);
1950 case 'n': /* cursor position query */
1952 if (term
->esc_args
[0] == 6) {
1954 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1956 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1957 } else if (term
->esc_args
[0] == 5) {
1958 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1962 case 'h': /* toggle modes to high */
1964 compatibility(VT100
);
1967 for (i
= 0; i
< term
->esc_nargs
; i
++)
1968 toggle_mode(term
, term
->esc_args
[i
],
1969 term
->esc_query
, TRUE
);
1974 compatibility(VT100
);
1976 if (term
->esc_nargs
!= 1) break;
1977 if (term
->esc_args
[0] == 5 && *term
->cfg
->printer
) {
1978 term
->printing
= TRUE
;
1979 term
->only_printing
= !term
->esc_query
;
1980 term
->print_state
= 0;
1981 term_print_setup(term
);
1982 } else if (term
->esc_args
[0] == 4 &&
1984 term_print_finish(term
);
1988 case 'l': /* toggle modes to low */
1990 compatibility(VT100
);
1993 for (i
= 0; i
< term
->esc_nargs
; i
++)
1994 toggle_mode(term
, term
->esc_args
[i
],
1995 term
->esc_query
, FALSE
);
1998 case 'g': /* clear tabs */
1999 compatibility(VT100
);
2000 if (term
->esc_nargs
== 1) {
2001 if (term
->esc_args
[0] == 0) {
2002 term
->tabs
[term
->curs
.x
] = FALSE
;
2003 } else if (term
->esc_args
[0] == 3) {
2005 for (i
= 0; i
< term
->cols
; i
++)
2006 term
->tabs
[i
] = FALSE
;
2010 case 'r': /* set scroll margins */
2011 compatibility(VT100
);
2012 if (term
->esc_nargs
<= 2) {
2014 top
= def(term
->esc_args
[0], 1) - 1;
2015 bot
= (term
->esc_nargs
<= 1
2016 || term
->esc_args
[1] == 0 ?
2018 def(term
->esc_args
[1], term
->rows
)) - 1;
2019 if (bot
>= term
->rows
)
2020 bot
= term
->rows
- 1;
2021 /* VTTEST Bug 9 - if region is less than 2 lines
2022 * don't change region.
2024 if (bot
- top
> 0) {
2029 * I used to think the cursor should be
2030 * placed at the top of the newly marginned
2031 * area. Apparently not: VMS TPU falls over
2034 * Well actually it should for
2037 term
->curs
.y
= (term
->dec_om ?
2040 term
->seen_disp_event
= TRUE
;
2044 case 'm': /* set graphics rendition */
2047 * A VT100 without the AVO only had one
2048 * attribute, either underline or
2049 * reverse video depending on the
2050 * cursor type, this was selected by
2054 * This is sometimes DIM, eg on the
2057 * This is sometimes INVIS various ANSI.
2059 * This like 22 disables BOLD, DIM and INVIS
2061 * The ANSI colours appear on any
2062 * terminal that has colour (obviously)
2063 * but the interaction between sgr0 and
2064 * the colours varies but is usually
2065 * related to the background colour
2066 * erase item. The interaction between
2067 * colour attributes and the mono ones
2068 * is also very implementation
2071 * The 39 and 49 attributes are likely
2072 * to be unimplemented.
2075 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2076 switch (def(term
->esc_args
[i
], 0)) {
2077 case 0: /* restore defaults */
2078 term
->curr_attr
= ATTR_DEFAULT
;
2080 case 1: /* enable bold */
2081 compatibility(VT100AVO
);
2082 term
->curr_attr
|= ATTR_BOLD
;
2084 case 21: /* (enable double underline) */
2085 compatibility(OTHER
);
2086 case 4: /* enable underline */
2087 compatibility(VT100AVO
);
2088 term
->curr_attr
|= ATTR_UNDER
;
2090 case 5: /* enable blink */
2091 compatibility(VT100AVO
);
2092 term
->curr_attr
|= ATTR_BLINK
;
2094 case 7: /* enable reverse video */
2095 term
->curr_attr
|= ATTR_REVERSE
;
2097 case 10: /* SCO acs off */
2098 compatibility(SCOANSI
);
2099 if (term
->cfg
->no_remote_charset
) break;
2100 term
->sco_acs
= 0; break;
2101 case 11: /* SCO acs on */
2102 compatibility(SCOANSI
);
2103 if (term
->cfg
->no_remote_charset
) break;
2104 term
->sco_acs
= 1; break;
2105 case 12: /* SCO acs on flipped */
2106 compatibility(SCOANSI
);
2107 if (term
->cfg
->no_remote_charset
) break;
2108 term
->sco_acs
= 2; break;
2109 case 22: /* disable bold */
2110 compatibility2(OTHER
, VT220
);
2111 term
->curr_attr
&= ~ATTR_BOLD
;
2113 case 24: /* disable underline */
2114 compatibility2(OTHER
, VT220
);
2115 term
->curr_attr
&= ~ATTR_UNDER
;
2117 case 25: /* disable blink */
2118 compatibility2(OTHER
, VT220
);
2119 term
->curr_attr
&= ~ATTR_BLINK
;
2121 case 27: /* disable reverse video */
2122 compatibility2(OTHER
, VT220
);
2123 term
->curr_attr
&= ~ATTR_REVERSE
;
2134 term
->curr_attr
&= ~ATTR_FGMASK
;
2136 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2138 case 39: /* default-foreground */
2139 term
->curr_attr
&= ~ATTR_FGMASK
;
2140 term
->curr_attr
|= ATTR_DEFFG
;
2151 term
->curr_attr
&= ~ATTR_BGMASK
;
2153 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2155 case 49: /* default-background */
2156 term
->curr_attr
&= ~ATTR_BGMASK
;
2157 term
->curr_attr
|= ATTR_DEFBG
;
2162 term
->erase_char
= (' ' | ATTR_ASCII
|
2168 case 's': /* save cursor */
2169 save_cursor(term
, TRUE
);
2171 case 'u': /* restore cursor */
2172 save_cursor(term
, FALSE
);
2173 term
->seen_disp_event
= TRUE
;
2175 case 't': /* set page size - ie window height */
2177 * VT340/VT420 sequence DECSLPP, DEC only allows values
2178 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2179 * illegal values (eg first arg 1..9) for window changing
2182 if (term
->esc_nargs
<= 1
2183 && (term
->esc_args
[0] < 1 ||
2184 term
->esc_args
[0] >= 24)) {
2185 compatibility(VT340TEXT
);
2186 if (!term
->cfg
->no_remote_resize
)
2187 request_resize(term
->frontend
, term
->cols
,
2188 def(term
->esc_args
[0], 24));
2190 } else if (term
->esc_nargs
>= 1 &&
2191 term
->esc_args
[0] >= 1 &&
2192 term
->esc_args
[0] < 24) {
2193 compatibility(OTHER
);
2195 switch (term
->esc_args
[0]) {
2199 set_iconic(term
->frontend
, FALSE
);
2202 set_iconic(term
->frontend
, TRUE
);
2205 if (term
->esc_nargs
>= 3) {
2206 if (!term
->cfg
->no_remote_resize
)
2207 move_window(term
->frontend
,
2208 def(term
->esc_args
[1], 0),
2209 def(term
->esc_args
[2], 0));
2213 /* We should resize the window to a given
2214 * size in pixels here, but currently our
2215 * resizing code isn't healthy enough to
2220 set_zorder(term
->frontend
, TRUE
);
2223 /* move to bottom */
2224 set_zorder(term
->frontend
, FALSE
);
2227 refresh_window(term
->frontend
);
2230 if (term
->esc_nargs
>= 3) {
2231 if (!term
->cfg
->no_remote_resize
)
2232 request_resize(term
->frontend
,
2233 def(term
->esc_args
[2], term
->cfg
->width
),
2234 def(term
->esc_args
[1], term
->cfg
->height
));
2238 if (term
->esc_nargs
>= 2)
2239 set_zoomed(term
->frontend
,
2245 ldisc_send(term
->ldisc
,
2246 is_iconic(term
->frontend
) ?
2247 "\033[1t" : "\033[2t", 4, 0);
2251 get_window_pos(term
->frontend
, &x
, &y
);
2252 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2253 ldisc_send(term
->ldisc
, buf
, len
, 0);
2258 get_window_pixels(term
->frontend
, &x
, &y
);
2259 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2260 ldisc_send(term
->ldisc
, buf
, len
, 0);
2265 len
= sprintf(buf
, "\033[8;%d;%dt",
2266 term
->rows
, term
->cols
);
2267 ldisc_send(term
->ldisc
, buf
, len
, 0);
2272 * Hmmm. Strictly speaking we
2273 * should return `the size of the
2274 * screen in characters', but
2275 * that's not easy: (a) window
2276 * furniture being what it is it's
2277 * hard to compute, and (b) in
2278 * resize-font mode maximising the
2279 * window wouldn't change the
2280 * number of characters. *shrug*. I
2281 * think we'll ignore it for the
2282 * moment and see if anyone
2283 * complains, and then ask them
2284 * what they would like it to do.
2289 p
= get_window_title(term
->frontend
, TRUE
);
2291 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2292 ldisc_send(term
->ldisc
, p
, len
, 0);
2293 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2298 p
= get_window_title(term
->frontend
,FALSE
);
2300 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2301 ldisc_send(term
->ldisc
, p
, len
, 0);
2302 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2309 compatibility(SCOANSI
);
2310 scroll(term
, term
->marg_t
, term
->marg_b
,
2311 def(term
->esc_args
[0], 1), TRUE
);
2313 term
->wrapnext
= FALSE
;
2314 term
->seen_disp_event
= TRUE
;
2317 compatibility(SCOANSI
);
2318 scroll(term
, term
->marg_t
, term
->marg_b
,
2319 -def(term
->esc_args
[0], 1), TRUE
);
2321 term
->wrapnext
= FALSE
;
2322 term
->seen_disp_event
= TRUE
;
2324 case ANSI('|', '*'):
2325 /* VT420 sequence DECSNLS
2326 * Set number of lines on screen
2327 * VT420 uses VGA like hardware and can support any size in
2328 * reasonable range (24..49 AIUI) with no default specified.
2330 compatibility(VT420
);
2331 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2332 if (!term
->cfg
->no_remote_resize
)
2333 request_resize(term
->frontend
, term
->cols
,
2334 def(term
->esc_args
[0],
2335 term
->cfg
->height
));
2339 case ANSI('|', '$'):
2340 /* VT340/VT420 sequence DECSCPP
2341 * Set number of columns per page
2342 * Docs imply range is only 80 or 132, but I'll allow any.
2344 compatibility(VT340TEXT
);
2345 if (term
->esc_nargs
<= 1) {
2346 if (!term
->cfg
->no_remote_resize
)
2347 request_resize(term
->frontend
,
2348 def(term
->esc_args
[0],
2349 term
->cfg
->width
), term
->rows
);
2353 case 'X': /* write N spaces w/o moving cursor */
2354 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2355 compatibility(ANSIMIN
);
2357 int n
= def(term
->esc_args
[0], 1);
2359 unsigned long *p
= term
->cpos
;
2360 if (n
> term
->cols
- term
->curs
.x
)
2361 n
= term
->cols
- term
->curs
.x
;
2362 cursplus
= term
->curs
;
2364 check_selection(term
, term
->curs
, cursplus
);
2366 *p
++ = term
->erase_char
;
2367 term
->seen_disp_event
= TRUE
;
2370 case 'x': /* report terminal characteristics */
2371 compatibility(VT100
);
2374 int i
= def(term
->esc_args
[0], 0);
2375 if (i
== 0 || i
== 1) {
2376 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2378 ldisc_send(term
->ldisc
, buf
, 20, 0);
2382 case 'Z': /* BackTab for xterm */
2383 compatibility(OTHER
);
2385 int i
= def(term
->esc_args
[0], 1);
2386 pos old_curs
= term
->curs
;
2388 for(;i
>0 && term
->curs
.x
>0; i
--) {
2391 } while (term
->curs
.x
>0 &&
2392 !term
->tabs
[term
->curs
.x
]);
2395 check_selection(term
, old_curs
, term
->curs
);
2398 case ANSI('L', '='):
2399 compatibility(OTHER
);
2400 term
->use_bce
= (term
->esc_args
[0] <= 0);
2401 term
->erase_char
= ERASE_CHAR
;
2403 term
->erase_char
= (' ' | ATTR_ASCII
|
2405 (ATTR_FGMASK
| ATTR_BGMASK
)));
2407 case ANSI('E', '='):
2408 compatibility(OTHER
);
2409 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2411 case ANSI('p', '"'):
2413 * Allow the host to make this emulator a
2414 * 'perfect' VT102. This first appeared in
2415 * the VT220, but we do need to get back to
2416 * PuTTY mode so I won't check it.
2418 * The arg in 40..42,50 are a PuTTY extension.
2419 * The 2nd arg, 8bit vs 7bit is not checked.
2421 * Setting VT102 mode should also change
2422 * the Fkeys to generate PF* codes as a
2423 * real VT102 has no Fkeys. The VT220 does
2424 * this, F11..F13 become ESC,BS,LF other
2425 * Fkeys send nothing.
2427 * Note ESC c will NOT change this!
2430 switch (term
->esc_args
[0]) {
2432 term
->compatibility_level
&= ~TM_VTXXX
;
2433 term
->compatibility_level
|= TM_VT102
;
2436 term
->compatibility_level
&= ~TM_VTXXX
;
2437 term
->compatibility_level
|= TM_VT220
;
2441 if (term
->esc_args
[0] > 60 &&
2442 term
->esc_args
[0] < 70)
2443 term
->compatibility_level
|= TM_VTXXX
;
2447 term
->compatibility_level
&= TM_VTXXX
;
2450 term
->compatibility_level
= TM_PUTTY
;
2453 term
->compatibility_level
= TM_SCOANSI
;
2457 term
->compatibility_level
= TM_PUTTY
;
2463 /* Change the response to CSI c */
2464 if (term
->esc_args
[0] == 50) {
2467 strcpy(term
->id_string
, "\033[?");
2468 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2470 strcat(term
->id_string
, ";");
2471 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2472 strcat(term
->id_string
, lbuf
);
2474 strcat(term
->id_string
, "c");
2477 /* Is this a good idea ?
2478 * Well we should do a soft reset at this point ...
2480 if (!has_compat(VT420
) && has_compat(VT100
)) {
2481 if (!term
->cfg
->no_remote_resize
) {
2482 if (term
->reset_132
)
2483 request_resize(132, 24);
2485 request_resize(80, 24);
2493 term
->osc_w
= FALSE
;
2495 case 'P': /* Linux palette sequence */
2496 term
->termstate
= SEEN_OSC_P
;
2497 term
->osc_strlen
= 0;
2499 case 'R': /* Linux palette reset */
2500 palette_reset(term
->frontend
);
2501 term_invalidate(term
);
2502 term
->termstate
= TOPLEVEL
;
2504 case 'W': /* word-set */
2505 term
->termstate
= SEEN_OSC_W
;
2518 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2522 * Grotty hack to support xterm and DECterm title
2523 * sequences concurrently.
2525 if (term
->esc_args
[0] == 2) {
2526 term
->esc_args
[0] = 1;
2529 /* else fall through */
2531 term
->termstate
= OSC_STRING
;
2532 term
->osc_strlen
= 0;
2537 * This OSC stuff is EVIL. It takes just one character to get into
2538 * sysline mode and it's not initially obvious how to get out.
2539 * So I've added CR and LF as string aborts.
2540 * This shouldn't effect compatibility as I believe embedded
2541 * control characters are supposed to be interpreted (maybe?)
2542 * and they don't display anything useful anyway.
2546 if (c
== '\012' || c
== '\015') {
2547 term
->termstate
= TOPLEVEL
;
2548 } else if (c
== 0234 || c
== '\007') {
2550 * These characters terminate the string; ST and BEL
2551 * terminate the sequence and trigger instant
2552 * processing of it, whereas ESC goes back to SEEN_ESC
2553 * mode unless it is followed by \, in which case it is
2554 * synonymous with ST in the first place.
2557 term
->termstate
= TOPLEVEL
;
2558 } else if (c
== '\033')
2559 term
->termstate
= OSC_MAYBE_ST
;
2560 else if (term
->osc_strlen
< OSC_STR_MAX
)
2561 term
->osc_string
[term
->osc_strlen
++] = c
;
2565 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2567 if (c
>= '0' && c
<= '9')
2569 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2571 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2574 term
->termstate
= TOPLEVEL
;
2577 term
->osc_string
[term
->osc_strlen
++] = val
;
2578 if (term
->osc_strlen
>= 7) {
2579 palette_set(term
->frontend
, term
->osc_string
[0],
2580 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2581 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2582 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2583 term_invalidate(term
);
2584 term
->termstate
= TOPLEVEL
;
2600 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2603 term
->termstate
= OSC_STRING
;
2604 term
->osc_strlen
= 0;
2608 term
->termstate
= TOPLEVEL
;
2609 term
->seen_disp_event
= TRUE
;
2612 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2615 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2618 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2621 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2624 * From the VT100 Manual
2625 * NOTE: The special graphics characters in the VT100
2626 * are different from those in the VT52
2628 * From VT102 manual:
2629 * 137 _ Blank - Same
2630 * 140 ` Reserved - Humm.
2631 * 141 a Solid rectangle - Similar
2632 * 142 b 1/ - Top half of fraction for the
2633 * 143 c 3/ - subscript numbers below.
2636 * 146 f Degrees - Same
2637 * 147 g Plus or minus - Same
2639 * 151 i Ellipsis (dots)
2642 * 154 l Bar at scan 0
2643 * 155 m Bar at scan 1
2644 * 156 n Bar at scan 2
2645 * 157 o Bar at scan 3 - Similar
2646 * 160 p Bar at scan 4 - Similar
2647 * 161 q Bar at scan 5 - Similar
2648 * 162 r Bar at scan 6 - Same
2649 * 163 s Bar at scan 7 - Similar
2664 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2667 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2670 move(term
, 0, 0, 0);
2673 if (term
->curs
.y
== 0)
2674 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2675 else if (term
->curs
.y
> 0)
2678 term
->wrapnext
= FALSE
;
2681 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2685 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2689 /* XXX Print cursor line */
2692 /* XXX Start controller mode */
2695 /* XXX Stop controller mode */
2699 term
->termstate
= VT52_Y1
;
2703 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2706 term
->app_keypad_keys
= TRUE
;
2709 term
->app_keypad_keys
= FALSE
;
2712 /* XXX This should switch to VT100 mode not current or default
2713 * VT mode. But this will only have effect in a VT220+
2716 term
->vt52_mode
= FALSE
;
2717 term
->blink_is_real
= term
->cfg
->blinktext
;
2721 /* XXX Enter auto print mode */
2724 /* XXX Exit auto print mode */
2727 /* XXX Print screen */
2733 /* compatibility(ATARI) */
2734 move(term
, 0, 0, 0);
2735 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2739 /* compatibility(ATARI) */
2740 if (term
->curs
.y
<= term
->marg_b
)
2741 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2744 /* compatibility(ATARI) */
2745 if (term
->curs
.y
<= term
->marg_b
)
2746 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2749 /* compatibility(ATARI) */
2750 term
->termstate
= VT52_FG
;
2753 /* compatibility(ATARI) */
2754 term
->termstate
= VT52_BG
;
2757 /* compatibility(ATARI) */
2758 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2762 /* compatibility(ATARI) */
2763 term
->cursor_on
= TRUE
;
2766 /* compatibility(ATARI) */
2767 term
->cursor_on
= FALSE
;
2769 /* case 'j': Save cursor position - broken on ST */
2770 /* case 'k': Restore cursor position */
2772 /* compatibility(ATARI) */
2773 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2775 term
->wrapnext
= FALSE
;
2779 /* compatibility(ATARI) */
2780 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2783 /* compatibility(ATARI) */
2784 term
->curr_attr
|= ATTR_REVERSE
;
2787 /* compatibility(ATARI) */
2788 term
->curr_attr
&= ~ATTR_REVERSE
;
2790 case 'v': /* wrap Autowrap on - Wyse style */
2791 /* compatibility(ATARI) */
2794 case 'w': /* Autowrap off */
2795 /* compatibility(ATARI) */
2800 /* compatibility(OTHER) */
2801 term
->vt52_bold
= FALSE
;
2802 term
->curr_attr
= ATTR_DEFAULT
;
2804 term
->erase_char
= (' ' | ATTR_ASCII
|
2806 (ATTR_FGMASK
| ATTR_BGMASK
)));
2809 /* compatibility(VI50) */
2810 term
->curr_attr
|= ATTR_UNDER
;
2813 /* compatibility(VI50) */
2814 term
->curr_attr
&= ~ATTR_UNDER
;
2817 /* compatibility(VI50) */
2818 term
->vt52_bold
= TRUE
;
2819 term
->curr_attr
|= ATTR_BOLD
;
2822 /* compatibility(VI50) */
2823 term
->vt52_bold
= FALSE
;
2824 term
->curr_attr
&= ~ATTR_BOLD
;
2830 term
->termstate
= VT52_Y2
;
2831 move(term
, term
->curs
.x
, c
- ' ', 0);
2834 term
->termstate
= TOPLEVEL
;
2835 move(term
, c
- ' ', term
->curs
.y
, 0);
2840 term
->termstate
= TOPLEVEL
;
2841 term
->curr_attr
&= ~ATTR_FGMASK
;
2842 term
->curr_attr
&= ~ATTR_BOLD
;
2843 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2844 if ((c
& 0x8) || term
->vt52_bold
)
2845 term
->curr_attr
|= ATTR_BOLD
;
2848 term
->erase_char
= (' ' | ATTR_ASCII
|
2850 (ATTR_FGMASK
| ATTR_BGMASK
)));
2853 term
->termstate
= TOPLEVEL
;
2854 term
->curr_attr
&= ~ATTR_BGMASK
;
2855 term
->curr_attr
&= ~ATTR_BLINK
;
2856 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2858 /* Note: bold background */
2860 term
->curr_attr
|= ATTR_BLINK
;
2863 term
->erase_char
= (' ' | ATTR_ASCII
|
2865 (ATTR_FGMASK
| ATTR_BGMASK
)));
2868 default: break; /* placate gcc warning about enum use */
2870 if (term
->selstate
!= NO_SELECTION
) {
2871 pos cursplus
= term
->curs
;
2873 check_selection(term
, term
->curs
, cursplus
);
2877 term_print_flush(term
);
2882 * Compare two lines to determine whether they are sufficiently
2883 * alike to scroll-optimise one to the other. Return the degree of
2886 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2890 for (i
= n
= 0; i
< term
->cols
; i
++)
2891 n
+= (*a
++ == *b
++);
2897 * Given a context, update the window. Out of paranoia, we don't
2898 * allow WM_PAINT responses to do scrolling optimisations.
2900 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2902 int i
, j
, our_curs_y
;
2903 unsigned long rv
, cursor
;
2906 long cursor_background
= ERASE_CHAR
;
2907 unsigned long ticks
;
2910 * Check the visual bell state.
2912 if (term
->in_vbell
) {
2913 ticks
= GETTICKCOUNT();
2914 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2915 term
->in_vbell
= FALSE
;
2918 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2921 * screen array, disptop, scrtop,
2923 * cfg.blinkpc, blink_is_real, tblinker,
2924 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2927 /* Has the cursor position or type changed ? */
2928 if (term
->cursor_on
) {
2929 if (term
->has_focus
) {
2930 if (term
->blinker
|| !term
->cfg
->blink_cur
)
2931 cursor
= TATTR_ACTCURS
;
2935 cursor
= TATTR_PASCURS
;
2937 cursor
|= TATTR_RIGHTCURS
;
2940 our_curs_y
= term
->curs
.y
- term
->disptop
;
2942 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2944 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2946 if (term
->dispcurs
> term
->disptext
&&
2947 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2948 term
->dispcurs
[-1] |= ATTR_INVALID
;
2949 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2950 term
->dispcurs
[1] |= ATTR_INVALID
;
2951 *term
->dispcurs
|= ATTR_INVALID
;
2954 term
->dispcurs
= NULL
;
2956 /* The normal screen data */
2957 for (i
= 0; i
< term
->rows
; i
++) {
2958 unsigned long *ldata
;
2960 int idx
, dirty_line
, dirty_run
, selected
;
2961 unsigned long attr
= 0;
2962 int updated_line
= 0;
2965 int last_run_dirty
= 0;
2967 scrpos
.y
= i
+ term
->disptop
;
2968 ldata
= lineptr(scrpos
.y
);
2969 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2971 idx
= i
* (term
->cols
+ 1);
2972 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2973 term
->disptext
[idx
+ term
->cols
]);
2974 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2976 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2977 unsigned long tattr
, tchar
;
2978 unsigned long *d
= ldata
+ j
;
2982 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2983 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2984 switch (tchar
& CSET_MASK
) {
2986 tchar
= unitab_line
[tchar
& 0xFF];
2989 tchar
= unitab_xterm
[tchar
& 0xFF];
2992 tchar
= unitab_scoacs
[tchar
&0xFF];
2995 tattr
|= (tchar
& CSET_MASK
);
2997 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3000 /* Video reversing things */
3001 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3002 if (term
->seltype
== LEXICOGRAPHIC
)
3003 selected
= (posle(term
->selstart
, scrpos
) &&
3004 poslt(scrpos
, term
->selend
));
3006 selected
= (posPle(term
->selstart
, scrpos
) &&
3007 posPlt(scrpos
, term
->selend
));
3011 ^ (selected ? ATTR_REVERSE
: 0));
3013 /* 'Real' blinking ? */
3014 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3015 if (term
->has_focus
&& term
->tblinker
) {
3017 tattr
&= ~CSET_MASK
;
3020 tattr
&= ~ATTR_BLINK
;
3024 * Check the font we'll _probably_ be using to see if
3025 * the character is wide when we don't want it to be.
3027 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3028 if ((tattr
& ATTR_WIDE
) == 0 &&
3029 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3030 tattr
|= ATTR_NARROW
;
3031 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3032 tattr
|= ATTR_NARROW
;
3034 /* Cursor here ? Save the 'background' */
3035 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3036 cursor_background
= tattr
| tchar
;
3037 term
->dispcurs
= term
->disptext
+ idx
;
3040 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3043 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3044 j
- start
>= sizeof(ch
));
3046 /* Special hack for VT100 Linedraw glyphs */
3047 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3048 && tchar
<= 0xBD) break_run
= TRUE
;
3050 if (!dbcs_screenfont
&& !dirty_line
) {
3051 if ((tchar
| tattr
) == term
->disptext
[idx
])
3053 else if (!dirty_run
&& ccount
== 1)
3058 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3059 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3065 if (dbcs_screenfont
)
3066 last_run_dirty
= dirty_run
;
3067 dirty_run
= dirty_line
;
3070 if ((tchar
| tattr
) != term
->disptext
[idx
])
3072 ch
[ccount
++] = (char) tchar
;
3073 term
->disptext
[idx
] = tchar
| tattr
;
3075 /* If it's a wide char step along to the next one. */
3076 if (tattr
& ATTR_WIDE
) {
3077 if (++j
< term
->cols
) {
3080 /* Cursor is here ? Ouch! */
3081 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3082 cursor_background
= *d
;
3083 term
->dispcurs
= term
->disptext
+ idx
;
3085 if (term
->disptext
[idx
] != *d
)
3087 term
->disptext
[idx
] = *d
;
3091 if (dirty_run
&& ccount
> 0) {
3092 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3096 /* Cursor on this line ? (and changed) */
3097 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3098 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3099 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3100 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3101 term
->curstype
= cursor
;
3107 * Flick the switch that says if blinking things should be shown or hidden.
3110 void term_blink(Terminal
*term
, int flg
)
3112 long now
, blink_diff
;
3114 now
= GETTICKCOUNT();
3115 blink_diff
= now
- term
->last_tblink
;
3117 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3118 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3119 term
->last_tblink
= now
;
3120 term
->tblinker
= !term
->tblinker
;
3125 term
->last_blink
= now
;
3129 blink_diff
= now
- term
->last_blink
;
3131 /* Make sure the cursor blinks no faster than system blink rate */
3132 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3135 term
->last_blink
= now
;
3136 term
->blinker
= !term
->blinker
;
3140 * Invalidate the whole screen so it will be repainted in full.
3142 void term_invalidate(Terminal
*term
)
3146 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3147 term
->disptext
[i
] = ATTR_INVALID
;
3151 * Paint the window in response to a WM_PAINT message.
3153 void term_paint(Terminal
*term
, Context ctx
,
3154 int left
, int top
, int right
, int bottom
, int immediately
)
3157 if (left
< 0) left
= 0;
3158 if (top
< 0) top
= 0;
3159 if (right
>= term
->cols
) right
= term
->cols
-1;
3160 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3162 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3163 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3164 LATTR_MODE
) == LATTR_NORM
)
3165 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3166 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3168 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3169 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3172 /* This should happen soon enough, also for some reason it sometimes
3173 * fails to actually do anything when re-sizing ... painting the wrong
3177 do_paint (term
, ctx
, FALSE
);
3181 * Attempt to scroll the scrollback. The second parameter gives the
3182 * position we want to scroll to; the first is +1 to denote that
3183 * this position is relative to the beginning of the scrollback, -1
3184 * to denote it is relative to the end, and 0 to denote that it is
3185 * relative to the current position.
3187 void term_scroll(Terminal
*term
, int rel
, int where
)
3189 int sbtop
= -count234(term
->scrollback
);
3190 #ifdef OPTIMISE_SCROLL
3191 int olddisptop
= term
->disptop
;
3193 #endif /* OPTIMISE_SCROLL */
3195 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3196 if (term
->disptop
< sbtop
)
3197 term
->disptop
= sbtop
;
3198 if (term
->disptop
> 0)
3201 #ifdef OPTIMISE_SCROLL
3202 shift
= (term
->disptop
- olddisptop
);
3203 if (shift
< term
->rows
&& shift
> -term
->rows
)
3204 scroll_display(term
, 0, term
->rows
- 1, shift
);
3205 #endif /* OPTIMISE_SCROLL */
3209 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3212 wchar_t *wbptr
; /* where next char goes within workbuf */
3214 int wblen
= 0; /* workbuf len */
3215 int buflen
; /* amount of memory allocated to workbuf */
3217 buflen
= 5120; /* Default size */
3218 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3219 wbptr
= workbuf
; /* start filling here */
3220 old_top_x
= top
.x
; /* needed for rect==1 */
3222 while (poslt(top
, bottom
)) {
3224 unsigned long *ldata
= lineptr(top
.y
);
3228 * nlpos will point at the maximum position on this line we
3229 * should copy up to. So we start it at the end of the
3233 nlpos
.x
= term
->cols
;
3236 * ... move it backwards if there's unused space at the end
3237 * of the line (and also set `nl' if this is the case,
3238 * because in normal selection mode this means we need a
3239 * newline at the end)...
3241 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3242 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3243 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3244 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3245 && poslt(top
, nlpos
))
3247 if (poslt(nlpos
, bottom
))
3252 * ... and then clip it to the terminal x coordinate if
3253 * we're doing rectangular selection. (In this case we
3254 * still did the above, so that copying e.g. the right-hand
3255 * column from a table doesn't fill with spaces on the
3259 if (nlpos
.x
> bottom
.x
)
3261 nl
= (top
.y
< bottom
.y
);
3264 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3267 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3269 wchar_t cbuf
[16], *p
;
3270 int uc
= (ldata
[top
.x
] & 0xFFFF);
3273 if (uc
== UCSWIDE
) {
3278 switch (uc
& CSET_MASK
) {
3280 if (!term
->cfg
->rawcnp
) {
3281 uc
= unitab_xterm
[uc
& 0xFF];
3285 uc
= unitab_line
[uc
& 0xFF];
3288 uc
= unitab_scoacs
[uc
&0xFF];
3291 switch (uc
& CSET_MASK
) {
3293 uc
= unitab_font
[uc
& 0xFF];
3296 uc
= unitab_oemcp
[uc
& 0xFF];
3300 set
= (uc
& CSET_MASK
);
3301 c
= (uc
& CHAR_MASK
);
3305 if (DIRECT_FONT(uc
)) {
3306 if (c
>= ' ' && c
!= 0x7F) {
3310 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3312 buf
[1] = ldata
[top
.x
+ 1];
3313 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3317 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3321 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3328 for (p
= cbuf
; *p
; p
++) {
3329 /* Enough overhead for trailing NL and nul */
3330 if (wblen
>= buflen
- 16) {
3333 sizeof(wchar_t) * (buflen
+= 100));
3334 wbptr
= workbuf
+ wblen
;
3343 for (i
= 0; i
< sel_nl_sz
; i
++) {
3345 *wbptr
++ = sel_nl
[i
];
3349 top
.x
= rect ? old_top_x
: 0;
3351 #if SELECTION_NUL_TERMINATED
3355 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3356 if (buflen
> 0) /* indicates we allocated this buffer */
3360 void term_copyall(Terminal
*term
)
3363 top
.y
= -count234(term
->scrollback
);
3365 clipme(term
, top
, term
->curs
, 0);
3369 * The wordness array is mainly for deciding the disposition of the
3370 * US-ASCII characters.
3372 static int wordtype(Terminal
*term
, int uc
)
3375 int start
, end
, ctype
;
3377 static const struct ucsword ucs_words
[] = {
3383 0x037e, 0x037e, 1}, /* Greek question mark */
3385 0x0387, 0x0387, 1}, /* Greek ano teleia */
3387 0x055a, 0x055f, 1}, /* Armenian punctuation */
3389 0x0589, 0x0589, 1}, /* Armenian full stop */
3391 0x0700, 0x070d, 1}, /* Syriac punctuation */
3393 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3395 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3397 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3399 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3401 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3403 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3405 0x2000, 0x200a, 0}, /* Various spaces */
3407 0x2070, 0x207f, 2}, /* superscript */
3409 0x2080, 0x208f, 2}, /* subscript */
3411 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3413 0x3000, 0x3000, 0}, /* ideographic space */
3415 0x3001, 0x3020, 1}, /* ideographic punctuation */
3417 0x303f, 0x309f, 3}, /* Hiragana */
3419 0x30a0, 0x30ff, 3}, /* Katakana */
3421 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3423 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3425 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3427 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3429 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3431 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3433 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3435 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3437 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3441 const struct ucsword
*wptr
;
3443 uc
&= (CSET_MASK
| CHAR_MASK
);
3445 switch (uc
& CSET_MASK
) {
3447 uc
= unitab_xterm
[uc
& 0xFF];
3450 uc
= unitab_line
[uc
& 0xFF];
3453 uc
= unitab_scoacs
[uc
&0xFF];
3456 switch (uc
& CSET_MASK
) {
3458 uc
= unitab_font
[uc
& 0xFF];
3461 uc
= unitab_oemcp
[uc
& 0xFF];
3465 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3466 * fail as there's such a thing as a double width space. :-(
3468 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3472 return term
->wordness
[uc
];
3474 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3475 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3483 * Spread the selection outwards according to the selection mode.
3485 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3487 unsigned long *ldata
;
3489 int topy
= -count234(term
->scrollback
);
3491 ldata
= lineptr(p
.y
);
3493 switch (term
->selmode
) {
3496 * In this mode, every character is a separate unit, except
3497 * for runs of spaces at the end of a non-wrapping line.
3499 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3500 unsigned long *q
= ldata
+ term
->cols
;
3501 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3503 if (q
== ldata
+ term
->cols
)
3505 if (p
.x
>= q
- ldata
)
3506 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3511 * In this mode, the units are maximal runs of characters
3512 * whose `wordness' has the same value.
3514 wvalue
= wordtype(term
, ldata
[p
.x
]);
3517 if (p
.x
< term
->cols
-1) {
3518 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3523 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3524 unsigned long *ldata2
;
3525 ldata2
= lineptr(p
.y
+1);
3526 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3539 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3544 unsigned long *ldata2
;
3547 ldata2
= lineptr(p
.y
-1);
3548 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3549 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3561 * In this mode, every line is a unit.
3563 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3569 static void sel_spread(Terminal
*term
)
3571 if (term
->seltype
== LEXICOGRAPHIC
) {
3572 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3573 decpos(term
->selend
);
3574 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3575 incpos(term
->selend
);
3579 void term_do_paste(Terminal
*term
)
3584 get_clip(term
->frontend
, &data
, &len
);
3585 if (data
&& len
> 0) {
3588 term_seen_key_event(term
); /* pasted data counts */
3590 if (term
->paste_buffer
)
3591 sfree(term
->paste_buffer
);
3592 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3593 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3596 while (p
< data
+ len
) {
3597 while (p
< data
+ len
&&
3598 !(p
<= data
+ len
- sel_nl_sz
&&
3599 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3604 for (i
= 0; i
< p
- q
; i
++) {
3605 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3609 if (p
<= data
+ len
- sel_nl_sz
&&
3610 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3611 term
->paste_buffer
[term
->paste_len
++] = '\015';
3617 /* Assume a small paste will be OK in one go. */
3618 if (term
->paste_len
< 256) {
3620 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3621 if (term
->paste_buffer
)
3622 sfree(term
->paste_buffer
);
3623 term
->paste_buffer
= 0;
3624 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3627 get_clip(term
->frontend
, NULL
, NULL
);
3630 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3631 int shift
, int ctrl
, int alt
)
3634 unsigned long *ldata
;
3635 int raw_mouse
= (term
->xterm_mouse
&&
3636 !term
->cfg
->no_mouse_rep
&&
3637 !(term
->cfg
->mouse_override
&& shift
));
3638 int default_seltype
;
3642 if (a
== MA_DRAG
&& !raw_mouse
)
3643 term_scroll(term
, 0, -1);
3645 if (y
>= term
->rows
) {
3647 if (a
== MA_DRAG
&& !raw_mouse
)
3648 term_scroll(term
, 0, +1);
3657 if (x
>= term
->cols
)
3660 selpoint
.y
= y
+ term
->disptop
;
3662 ldata
= lineptr(selpoint
.y
);
3663 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3667 int encstate
= 0, r
, c
;
3674 encstate
= 0x20; /* left button down */
3685 case MBT_WHEEL_DOWN
:
3688 default: break; /* placate gcc warning about enum use */
3692 if (term
->xterm_mouse
== 1)
3698 term
->mouse_is_down
= 0;
3701 if (term
->mouse_is_down
== b
)
3703 term
->mouse_is_down
= b
;
3705 default: break; /* placate gcc warning about enum use */
3714 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3715 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3720 b
= translate_button(term
->frontend
, b
);
3723 * Set the selection type (rectangular or normal) at the start
3724 * of a selection attempt, from the state of Alt.
3726 if (!alt
^ !term
->cfg
->rect_select
)
3727 default_seltype
= RECTANGULAR
;
3729 default_seltype
= LEXICOGRAPHIC
;
3731 if (term
->selstate
== NO_SELECTION
) {
3732 term
->seltype
= default_seltype
;
3735 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3737 term
->selstate
= ABOUT_TO
;
3738 term
->seltype
= default_seltype
;
3739 term
->selanchor
= selpoint
;
3740 term
->selmode
= SM_CHAR
;
3741 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3743 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3744 term
->selstate
= DRAGGING
;
3745 term
->selstart
= term
->selanchor
= selpoint
;
3746 term
->selend
= term
->selstart
;
3747 incpos(term
->selend
);
3749 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3750 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3751 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3753 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3754 if (term
->seltype
== LEXICOGRAPHIC
) {
3756 * For normal selection, we extend by moving
3757 * whichever end of the current selection is closer
3760 if (posdiff(selpoint
, term
->selstart
) <
3761 posdiff(term
->selend
, term
->selstart
) / 2) {
3762 term
->selanchor
= term
->selend
;
3763 decpos(term
->selanchor
);
3765 term
->selanchor
= term
->selstart
;
3769 * For rectangular selection, we have a choice of
3770 * _four_ places to put selanchor and selpoint: the
3771 * four corners of the selection.
3773 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3774 term
->selanchor
.x
= term
->selend
.x
-1;
3776 term
->selanchor
.x
= term
->selstart
.x
;
3778 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3779 term
->selanchor
.y
= term
->selend
.y
;
3781 term
->selanchor
.y
= term
->selstart
.y
;
3783 term
->selstate
= DRAGGING
;
3785 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3786 term
->selanchor
= selpoint
;
3787 term
->selstate
= DRAGGING
;
3788 if (term
->seltype
== LEXICOGRAPHIC
) {
3790 * For normal selection, we set (selstart,selend) to
3791 * (selpoint,selanchor) in some order.
3793 if (poslt(selpoint
, term
->selanchor
)) {
3794 term
->selstart
= selpoint
;
3795 term
->selend
= term
->selanchor
;
3796 incpos(term
->selend
);
3798 term
->selstart
= term
->selanchor
;
3799 term
->selend
= selpoint
;
3800 incpos(term
->selend
);
3804 * For rectangular selection, we may need to
3805 * interchange x and y coordinates (if the user has
3806 * dragged in the -x and +y directions, or vice versa).
3808 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3809 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3810 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3811 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3814 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3815 if (term
->selstate
== DRAGGING
) {
3817 * We've completed a selection. We now transfer the
3818 * data to the clipboard.
3820 clipme(term
, term
->selstart
, term
->selend
,
3821 (term
->seltype
== RECTANGULAR
));
3822 term
->selstate
= SELECTED
;
3824 term
->selstate
= NO_SELECTION
;
3825 } else if (b
== MBT_PASTE
3827 #if MULTICLICK_ONLY_EVENT
3828 || a
== MA_2CLK
|| a
== MA_3CLK
3831 request_paste(term
->frontend
);
3837 void term_nopaste(Terminal
*term
)
3839 if (term
->paste_len
== 0)
3841 sfree(term
->paste_buffer
);
3842 term
->paste_buffer
= NULL
;
3843 term
->paste_len
= 0;
3846 int term_paste_pending(Terminal
*term
)
3848 return term
->paste_len
!= 0;
3851 void term_paste(Terminal
*term
)
3853 long now
, paste_diff
;
3855 if (term
->paste_len
== 0)
3858 /* Don't wait forever to paste */
3859 if (term
->paste_hold
) {
3860 now
= GETTICKCOUNT();
3861 paste_diff
= now
- term
->last_paste
;
3862 if (paste_diff
>= 0 && paste_diff
< 450)
3865 term
->paste_hold
= 0;
3867 while (term
->paste_pos
< term
->paste_len
) {
3869 while (n
+ term
->paste_pos
< term
->paste_len
) {
3870 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3874 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3875 term
->paste_pos
+= n
;
3877 if (term
->paste_pos
< term
->paste_len
) {
3878 term
->paste_hold
= 1;
3882 sfree(term
->paste_buffer
);
3883 term
->paste_buffer
= NULL
;
3884 term
->paste_len
= 0;
3887 static void deselect(Terminal
*term
)
3889 term
->selstate
= NO_SELECTION
;
3890 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3893 void term_deselect(Terminal
*term
)
3899 int term_ldisc(Terminal
*term
, int option
)
3901 if (option
== LD_ECHO
)
3902 return term
->term_echoing
;
3903 if (option
== LD_EDIT
)
3904 return term
->term_editing
;
3909 * from_backend(), to get data from the backend for the terminal.
3911 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3913 Terminal
*term
= (Terminal
*)vterm
;
3917 bufchain_add(&term
->inbuf
, data
, len
);
3920 * term_out() always completely empties inbuf. Therefore,
3921 * there's no reason at all to return anything other than zero
3922 * from this function, because there _can't_ be a question of
3923 * the remote side needing to wait until term_out() has cleared
3926 * This is a slightly suboptimal way to deal with SSH2 - in
3927 * principle, the window mechanism would allow us to continue
3928 * to accept data on forwarded ports and X connections even
3929 * while the terminal processing was going slowly - but we
3930 * can't do the 100% right thing without moving the terminal
3931 * processing into a separate thread, and that might hurt
3932 * portability. So we manage stdout buffering the old SSH1 way:
3933 * if the terminal processing goes slowly, the whole SSH
3934 * connection stops accepting data until it's ready.
3936 * In practice, I can't imagine this causing serious trouble.
3941 void term_provide_logctx(Terminal
*term
, void *logctx
)
3943 term
->logctx
= logctx
;