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
->resize_fn
= NULL
;
340 term
->resize_ctx
= NULL
;
346 * Set up the terminal for a given size.
348 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
351 unsigned long *newdisp
, *line
;
354 int save_alt_which
= term
->alt_which
;
356 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
357 newsavelines
== term
->savelines
)
358 return; /* nothing to do */
361 swap_screen(term
, 0, FALSE
, FALSE
);
363 term
->alt_t
= term
->marg_t
= 0;
364 term
->alt_b
= term
->marg_b
= newrows
- 1;
366 if (term
->rows
== -1) {
367 term
->scrollback
= newtree234(NULL
);
368 term
->screen
= newtree234(NULL
);
373 * Resize the screen and scrollback. We only need to shift
374 * lines around within our data structures, because lineptr()
375 * will take care of resizing each individual line if
378 * - If the new screen and the old screen differ in length, we
379 * must shunt some lines in from the scrollback or out to
382 * - If doing that fails to provide us with enough material to
383 * fill the new screen (i.e. the number of rows needed in
384 * the new screen exceeds the total number in the previous
385 * screen+scrollback), we must invent some blank lines to
388 * - Then, if the new scrollback length is less than the
389 * amount of scrollback we actually have, we must throw some
392 sblen
= count234(term
->scrollback
);
393 /* Do this loop to expand the screen if newrows > rows */
394 for (i
= term
->rows
; i
< newrows
; i
++) {
396 line
= delpos234(term
->scrollback
, --sblen
);
398 line
= smalloc(TSIZE
* (newcols
+ 2));
400 for (j
= 0; j
<= newcols
; j
++)
401 line
[j
+ 1] = ERASE_CHAR
;
403 addpos234(term
->screen
, line
, 0);
405 /* Do this loop to shrink the screen if newrows < rows */
406 for (i
= newrows
; i
< term
->rows
; i
++) {
407 line
= delpos234(term
->screen
, 0);
408 addpos234(term
->scrollback
, line
, sblen
++);
410 assert(count234(term
->screen
) == newrows
);
411 while (sblen
> newsavelines
) {
412 line
= delpos234(term
->scrollback
, 0);
416 assert(count234(term
->scrollback
) <= newsavelines
);
419 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
420 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
421 newdisp
[i
] = ATTR_INVALID
;
422 sfree(term
->disptext
);
423 term
->disptext
= newdisp
;
424 term
->dispcurs
= NULL
;
426 newalt
= newtree234(NULL
);
427 for (i
= 0; i
< newrows
; i
++) {
428 line
= smalloc(TSIZE
* (newcols
+ 2));
430 for (j
= 0; j
<= newcols
; j
++)
431 line
[j
+ 1] = term
->erase_char
;
432 addpos234(newalt
, line
, i
);
434 if (term
->alt_screen
) {
435 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
437 freetree234(term
->alt_screen
);
439 term
->alt_screen
= newalt
;
441 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
444 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
445 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
449 term
->curs
.y
+= newrows
- term
->rows
;
450 if (term
->curs
.y
< 0)
452 if (term
->curs
.y
>= newrows
)
453 term
->curs
.y
= newrows
- 1;
454 if (term
->curs
.x
>= newcols
)
455 term
->curs
.x
= newcols
- 1;
456 term
->alt_x
= term
->alt_y
= 0;
457 term
->wrapnext
= term
->alt_wnext
= FALSE
;
459 term
->rows
= newrows
;
460 term
->cols
= newcols
;
461 term
->savelines
= newsavelines
;
464 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
469 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
473 * Hand a function and context pointer to the terminal which it can
474 * use to notify a back end of resizes.
476 void term_provide_resize_fn(Terminal
*term
,
477 void (*resize_fn
)(void *, int, int),
480 term
->resize_fn
= resize_fn
;
481 term
->resize_ctx
= resize_ctx
;
482 if (term
->cols
> 0 && term
->rows
> 0)
483 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
487 * Swap screens. If `reset' is TRUE and we have been asked to
488 * switch to the alternate screen, we must bring most of its
489 * configuration from the main screen and erase the contents of the
490 * alternate screen completely. (This is even true if we're already
491 * on it! Blame xterm.)
493 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
499 reset
= FALSE
; /* do no weird resetting if which==0 */
501 if (which
!= term
->alt_which
) {
502 term
->alt_which
= which
;
504 ttr
= term
->alt_screen
;
505 term
->alt_screen
= term
->screen
;
508 if (!reset
&& !keep_cur_pos
)
509 term
->curs
.x
= term
->alt_x
;
512 if (!reset
&& !keep_cur_pos
)
513 term
->curs
.y
= term
->alt_y
;
516 if (!reset
) term
->marg_t
= term
->alt_t
;
519 if (!reset
) term
->marg_b
= term
->alt_b
;
522 if (!reset
) term
->dec_om
= term
->alt_om
;
525 if (!reset
) term
->wrap
= term
->alt_wrap
;
528 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
531 if (!reset
) term
->insert
= term
->alt_ins
;
534 if (!reset
) term
->cset
= term
->alt_cset
;
537 if (!reset
) term
->utf
= term
->alt_utf
;
540 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
541 term
->alt_sco_acs
= t
;
544 if (reset
&& term
->screen
) {
546 * Yes, this _is_ supposed to honour background-colour-erase.
548 erase_lots(term
, FALSE
, TRUE
, TRUE
);
552 * This might not be possible if we're called during
560 * Update the scroll bar.
562 static void update_sbar(Terminal
*term
)
566 nscroll
= count234(term
->scrollback
);
568 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
569 nscroll
+ term
->disptop
, term
->rows
);
573 * Check whether the region bounded by the two pointers intersects
574 * the scroll region, and de-select the on-screen selection if so.
576 static void check_selection(Terminal
*term
, pos from
, pos to
)
578 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
583 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
584 * for backward.) `sb' is TRUE if the scrolling is permitted to
585 * affect the scrollback buffer.
587 * NB this function invalidates all pointers into lines of the
588 * screen data structures. In particular, you MUST call fix_cpos
589 * after calling scroll() and before doing anything else that
590 * uses the cpos shortcut pointer.
592 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
594 unsigned long *line
, *line2
;
595 int i
, seltop
, olddisptop
, shift
;
597 if (topline
!= 0 || term
->alt_which
!= 0)
600 olddisptop
= term
->disptop
;
604 line
= delpos234(term
->screen
, botline
);
605 line
= resizeline(line
, term
->cols
);
606 for (i
= 0; i
< term
->cols
; i
++)
607 line
[i
+ 1] = term
->erase_char
;
608 line
[term
->cols
+ 1] = 0;
609 addpos234(term
->screen
, line
, topline
);
611 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
613 if (term
->selstart
.y
> botline
) {
614 term
->selstart
.y
= botline
;
615 term
->selstart
.x
= 0;
618 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
620 if (term
->selend
.y
> botline
) {
621 term
->selend
.y
= botline
;
630 line
= delpos234(term
->screen
, topline
);
631 if (sb
&& term
->savelines
> 0) {
632 int sblen
= count234(term
->scrollback
);
634 * We must add this line to the scrollback. We'll
635 * remove a line from the top of the scrollback to
636 * replace it, or allocate a new one if the
637 * scrollback isn't full.
639 if (sblen
== term
->savelines
) {
640 sblen
--, line2
= delpos234(term
->scrollback
, 0);
642 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
643 line2
[0] = term
->cols
;
645 addpos234(term
->scrollback
, line
, sblen
);
649 * If the user is currently looking at part of the
650 * scrollback, and they haven't enabled any options
651 * that are going to reset the scrollback as a
652 * result of this movement, then the chances are
653 * they'd like to keep looking at the same line. So
654 * we move their viewpoint at the same rate as the
655 * scroll, at least until their viewpoint hits the
656 * top end of the scrollback buffer, at which point
657 * we don't have the choice any more.
659 * Thanks to Jan Holmen Holsten for the idea and
660 * initial implementation.
662 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
665 line
= resizeline(line
, term
->cols
);
666 for (i
= 0; i
< term
->cols
; i
++)
667 line
[i
+ 1] = term
->erase_char
;
668 line
[term
->cols
+ 1] = 0;
669 addpos234(term
->screen
, line
, botline
);
672 * If the selection endpoints move into the scrollback,
673 * we keep them moving until they hit the top. However,
674 * of course, if the line _hasn't_ moved into the
675 * scrollback then we don't do this, and cut them off
676 * at the top of the scroll region.
678 * This applies to selstart and selend (for an existing
679 * selection), and also selanchor (for one being
680 * selected as we speak).
682 seltop
= sb ?
-term
->savelines
: topline
;
684 if (term
->selstart
.y
>= seltop
&&
685 term
->selstart
.y
<= botline
) {
687 if (term
->selstart
.y
< seltop
) {
688 term
->selstart
.y
= seltop
;
689 term
->selstart
.x
= 0;
692 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
694 if (term
->selend
.y
< seltop
) {
695 term
->selend
.y
= seltop
;
699 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
701 if (term
->selanchor
.y
< seltop
) {
702 term
->selanchor
.y
= seltop
;
703 term
->selanchor
.x
= 0;
710 #ifdef OPTIMISE_SCROLL
711 shift
+= term
->disptop
- olddisptop
;
712 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
713 scroll_display(term
, topline
, botline
, shift
);
714 #endif /* OPTIMISE_SCROLL */
717 #ifdef OPTIMISE_SCROLL
719 * Scroll the physical display, and our conception of it in disptext.
721 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
723 unsigned long *start
, *end
;
724 int distance
, size
, i
;
726 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
727 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
728 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
729 size
= end
- start
- distance
;
731 memmove(start
, start
+ distance
, size
* TSIZE
);
732 if (term
->dispcurs
>= start
+ distance
&&
733 term
->dispcurs
<= start
+ distance
+ size
)
734 term
->dispcurs
-= distance
;
735 for (i
= 0; i
< distance
; i
++)
736 (start
+ size
)[i
] |= ATTR_INVALID
;
738 memmove(start
+ distance
, start
, size
* TSIZE
);
739 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
740 term
->dispcurs
+= distance
;
741 for (i
= 0; i
< distance
; i
++)
742 start
[i
] |= ATTR_INVALID
;
744 do_scroll(term
->frontend
, topline
, botline
, lines
);
746 #endif /* OPTIMISE_SCROLL */
749 * Move the cursor to a given position, clipping at boundaries. We
750 * may or may not want to clip at the scroll margin: marg_clip is 0
751 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
752 * even _being_ outside the margins.
754 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
761 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
764 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
775 term
->wrapnext
= FALSE
;
779 * Save or restore the cursor and SGR mode.
781 static void save_cursor(Terminal
*term
, int save
)
784 term
->savecurs
= term
->curs
;
785 term
->save_attr
= term
->curr_attr
;
786 term
->save_cset
= term
->cset
;
787 term
->save_utf
= term
->utf
;
788 term
->save_wnext
= term
->wrapnext
;
789 term
->save_csattr
= term
->cset_attr
[term
->cset
];
790 term
->save_sco_acs
= term
->sco_acs
;
792 term
->curs
= term
->savecurs
;
793 /* Make sure the window hasn't shrunk since the save */
794 if (term
->curs
.x
>= term
->cols
)
795 term
->curs
.x
= term
->cols
- 1;
796 if (term
->curs
.y
>= term
->rows
)
797 term
->curs
.y
= term
->rows
- 1;
799 term
->curr_attr
= term
->save_attr
;
800 term
->cset
= term
->save_cset
;
801 term
->utf
= term
->save_utf
;
802 term
->wrapnext
= term
->save_wnext
;
804 * wrapnext might reset to False if the x position is no
805 * longer at the rightmost edge.
807 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
808 term
->wrapnext
= FALSE
;
809 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
810 term
->sco_acs
= term
->save_sco_acs
;
813 term
->erase_char
= (' ' | ATTR_ASCII
|
815 (ATTR_FGMASK
| ATTR_BGMASK
)));
820 * Erase a large portion of the screen: the whole screen, or the
821 * whole line, or parts thereof.
823 static void erase_lots(Terminal
*term
,
824 int line_only
, int from_begin
, int to_end
)
828 unsigned long *ldata
;
831 start
.y
= term
->curs
.y
;
833 end
.y
= term
->curs
.y
+ 1;
850 check_selection(term
, start
, end
);
852 /* Clear screen also forces a full window redraw, just in case. */
853 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
854 term_invalidate(term
);
856 ldata
= lineptr(start
.y
);
857 while (poslt(start
, end
)) {
858 if (start
.x
== term
->cols
&& !erase_lattr
)
859 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
861 ldata
[start
.x
] = term
->erase_char
;
862 if (incpos(start
) && start
.y
< term
->rows
)
863 ldata
= lineptr(start
.y
);
868 * Insert or delete characters within the current line. n is +ve if
869 * insertion is desired, and -ve for deletion.
871 static void insch(Terminal
*term
, int n
)
873 int dir
= (n
< 0 ?
-1 : +1);
876 unsigned long *ldata
;
878 n
= (n
< 0 ?
-n
: n
);
879 if (n
> term
->cols
- term
->curs
.x
)
880 n
= term
->cols
- term
->curs
.x
;
881 m
= term
->cols
- term
->curs
.x
- n
;
882 cursplus
.y
= term
->curs
.y
;
883 cursplus
.x
= term
->curs
.x
+ n
;
884 check_selection(term
, term
->curs
, cursplus
);
885 ldata
= lineptr(term
->curs
.y
);
887 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
889 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
891 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
893 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
898 * Toggle terminal mode `mode' to state `state'. (`query' indicates
899 * whether the mode is a DEC private one or a normal one.)
901 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
907 case 1: /* application cursor keys */
908 term
->app_cursor_keys
= state
;
910 case 2: /* VT52 mode */
911 term
->vt52_mode
= !state
;
912 if (term
->vt52_mode
) {
913 term
->blink_is_real
= FALSE
;
914 term
->vt52_bold
= FALSE
;
916 term
->blink_is_real
= term
->cfg
->blinktext
;
919 case 3: /* 80/132 columns */
921 if (!term
->cfg
->no_remote_resize
)
922 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
923 term
->reset_132
= state
;
925 case 5: /* reverse video */
927 * Toggle reverse video. If we receive an OFF within the
928 * visual bell timeout period after an ON, we trigger an
929 * effective visual bell, so that ESC[?5hESC[?5l will
930 * always be an actually _visible_ visual bell.
932 ticks
= GETTICKCOUNT();
933 /* turn off a previous vbell to avoid inconsistencies */
934 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
935 term
->in_vbell
= FALSE
;
936 if (term
->rvideo
&& !state
&& /* we're turning it off... */
937 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
938 /* If there's no vbell timeout already, or this one lasts
939 * longer, replace vbell_timeout with ours. */
940 if (!term
->in_vbell
||
941 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
943 term
->vbell_startpoint
= term
->rvbell_startpoint
;
944 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
945 } else if (!term
->rvideo
&& state
) {
946 /* This is an ON, so we notice the time and save it. */
947 term
->rvbell_startpoint
= ticks
;
949 term
->rvideo
= state
;
950 term
->seen_disp_event
= TRUE
;
954 case 6: /* DEC origin mode */
955 term
->dec_om
= state
;
957 case 7: /* auto wrap */
960 case 8: /* auto key repeat */
961 term
->repeat_off
= !state
;
963 case 10: /* set local edit mode */
964 term
->term_editing
= state
;
965 if (term
->ldisc
) /* cause ldisc to notice changes */
966 ldisc_send(term
->ldisc
, NULL
, 0, 0);
968 case 25: /* enable/disable cursor */
969 compatibility2(OTHER
, VT220
);
970 term
->cursor_on
= state
;
971 term
->seen_disp_event
= TRUE
;
973 case 47: /* alternate screen */
974 compatibility(OTHER
);
976 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, FALSE
, FALSE
);
979 case 1000: /* xterm mouse 1 */
980 term
->xterm_mouse
= state ?
1 : 0;
981 set_raw_mouse_mode(term
->frontend
, state
);
983 case 1002: /* xterm mouse 2 */
984 term
->xterm_mouse
= state ?
2 : 0;
985 set_raw_mouse_mode(term
->frontend
, state
);
987 case 1047: /* alternate screen */
988 compatibility(OTHER
);
990 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, TRUE
);
993 case 1048: /* save/restore cursor */
994 save_cursor(term
, state
);
995 if (!state
) term
->seen_disp_event
= TRUE
;
997 case 1049: /* cursor & alternate screen */
999 save_cursor(term
, state
);
1000 if (!state
) term
->seen_disp_event
= TRUE
;
1001 compatibility(OTHER
);
1003 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1005 save_cursor(term
, state
);
1010 case 4: /* set insert mode */
1011 compatibility(VT102
);
1012 term
->insert
= state
;
1014 case 12: /* set echo mode */
1015 term
->term_echoing
= !state
;
1016 if (term
->ldisc
) /* cause ldisc to notice changes */
1017 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1019 case 20: /* Return sends ... */
1020 term
->cr_lf_return
= state
;
1022 case 34: /* Make cursor BIG */
1023 compatibility2(OTHER
, VT220
);
1024 term
->big_cursor
= !state
;
1029 * Process an OSC sequence: set window title or icon name.
1031 static void do_osc(Terminal
*term
)
1034 while (term
->osc_strlen
--)
1035 term
->wordness
[(unsigned char)
1036 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1038 term
->osc_string
[term
->osc_strlen
] = '\0';
1039 switch (term
->esc_args
[0]) {
1042 if (!term
->cfg
->no_remote_wintitle
)
1043 set_icon(term
->frontend
, term
->osc_string
);
1044 if (term
->esc_args
[0] == 1)
1046 /* fall through: parameter 0 means set both */
1049 if (!term
->cfg
->no_remote_wintitle
)
1050 set_title(term
->frontend
, term
->osc_string
);
1057 * ANSI printing routines.
1059 static void term_print_setup(Terminal
*term
)
1061 bufchain_clear(&term
->printer_buf
);
1062 term
->print_job
= printer_start_job(term
->cfg
->printer
);
1064 static void term_print_flush(Terminal
*term
)
1069 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1070 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1073 printer_job_data(term
->print_job
, data
, len
);
1074 bufchain_consume(&term
->printer_buf
, len
);
1077 static void term_print_finish(Terminal
*term
)
1083 if (!term
->printing
&& !term
->only_printing
)
1084 return; /* we need do nothing */
1086 term_print_flush(term
);
1087 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1088 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1090 if (c
== '\033' || c
== '\233') {
1091 bufchain_consume(&term
->printer_buf
, size
);
1094 printer_job_data(term
->print_job
, &c
, 1);
1095 bufchain_consume(&term
->printer_buf
, 1);
1098 printer_finish_job(term
->print_job
);
1099 term
->print_job
= NULL
;
1100 term
->printing
= term
->only_printing
= FALSE
;
1104 * Remove everything currently in `inbuf' and stick it up on the
1105 * in-memory display. There's a big state machine in here to
1106 * process escape sequences...
1108 void term_out(Terminal
*term
)
1111 unsigned char localbuf
[256], *chars
;
1116 chars
= NULL
; /* placate compiler warnings */
1117 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1121 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1122 if (nchars
> sizeof(localbuf
))
1123 nchars
= sizeof(localbuf
);
1124 memcpy(localbuf
, ret
, nchars
);
1125 bufchain_consume(&term
->inbuf
, nchars
);
1127 assert(chars
!= NULL
);
1133 * Optionally log the session traffic to a file. Useful for
1134 * debugging and possibly also useful for actual logging.
1136 if (term
->cfg
->logtype
== LGTYP_DEBUG
&& term
->logctx
)
1137 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1143 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1144 * be able to display 8-bit characters, but I'll let that go 'cause
1149 * If we're printing, add the character to the printer
1152 if (term
->printing
) {
1153 bufchain_add(&term
->printer_buf
, &c
, 1);
1156 * If we're in print-only mode, we use a much simpler
1157 * state machine designed only to recognise the ESC[4i
1158 * termination sequence.
1160 if (term
->only_printing
) {
1162 term
->print_state
= 1;
1163 else if (c
== (unsigned char)'\233')
1164 term
->print_state
= 2;
1165 else if (c
== '[' && term
->print_state
== 1)
1166 term
->print_state
= 2;
1167 else if (c
== '4' && term
->print_state
== 2)
1168 term
->print_state
= 3;
1169 else if (c
== 'i' && term
->print_state
== 3)
1170 term
->print_state
= 4;
1172 term
->print_state
= 0;
1173 if (term
->print_state
== 4) {
1174 term_print_finish(term
);
1180 /* First see about all those translations. */
1181 if (term
->termstate
== TOPLEVEL
) {
1183 switch (term
->utf_state
) {
1186 /* UTF-8 must be stateless so we ignore iso2022. */
1187 if (unitab_ctrl
[c
] != 0xFF)
1189 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1191 } else if ((c
& 0xe0) == 0xc0) {
1192 term
->utf_size
= term
->utf_state
= 1;
1193 term
->utf_char
= (c
& 0x1f);
1194 } else if ((c
& 0xf0) == 0xe0) {
1195 term
->utf_size
= term
->utf_state
= 2;
1196 term
->utf_char
= (c
& 0x0f);
1197 } else if ((c
& 0xf8) == 0xf0) {
1198 term
->utf_size
= term
->utf_state
= 3;
1199 term
->utf_char
= (c
& 0x07);
1200 } else if ((c
& 0xfc) == 0xf8) {
1201 term
->utf_size
= term
->utf_state
= 4;
1202 term
->utf_char
= (c
& 0x03);
1203 } else if ((c
& 0xfe) == 0xfc) {
1204 term
->utf_size
= term
->utf_state
= 5;
1205 term
->utf_char
= (c
& 0x01);
1216 if ((c
& 0xC0) != 0x80) {
1219 term
->utf_state
= 0;
1222 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1223 if (--term
->utf_state
)
1228 /* Is somebody trying to be evil! */
1230 (c
< 0x800 && term
->utf_size
>= 2) ||
1231 (c
< 0x10000 && term
->utf_size
>= 3) ||
1232 (c
< 0x200000 && term
->utf_size
>= 4) ||
1233 (c
< 0x4000000 && term
->utf_size
>= 5))
1236 /* Unicode line separator and paragraph separator are CR-LF */
1237 if (c
== 0x2028 || c
== 0x2029)
1240 /* High controls are probably a Baaad idea too. */
1244 /* The UTF-16 surrogates are not nice either. */
1245 /* The standard give the option of decoding these:
1246 * I don't want to! */
1247 if (c
>= 0xD800 && c
< 0xE000)
1250 /* ISO 10646 characters now limited to UTF-16 range. */
1254 /* This is currently a TagPhobic application.. */
1255 if (c
>= 0xE0000 && c
<= 0xE007F)
1258 /* U+FEFF is best seen as a null. */
1261 /* But U+FFFE is an error. */
1262 if (c
== 0xFFFE || c
== 0xFFFF)
1265 /* Oops this is a 16bit implementation */
1270 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1271 else if(term
->sco_acs
&&
1272 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1274 if (term
->sco_acs
== 2) c
^= 0x80;
1277 switch (term
->cset_attr
[term
->cset
]) {
1279 * Linedraw characters are different from 'ESC ( B'
1280 * only for a small range. For ones outside that
1281 * range, make sure we use the same font as well as
1282 * the same encoding.
1285 if (unitab_ctrl
[c
] != 0xFF)
1288 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1292 /* If UK-ASCII, make the '#' a LineDraw Pound */
1294 c
= '}' | ATTR_LINEDRW
;
1297 /*FALLTHROUGH*/ case ATTR_ASCII
:
1298 if (unitab_ctrl
[c
] != 0xFF)
1301 c
= ((unsigned char) c
) | ATTR_ASCII
;
1304 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1310 /* How about C1 controls ? */
1311 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1312 !term
->vt52_mode
&& has_compat(VT220
)) {
1313 term
->termstate
= SEEN_ESC
;
1314 term
->esc_query
= FALSE
;
1315 c
= '@' + (c
& 0x1F);
1318 /* Or the GL control. */
1319 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1320 if (term
->curs
.x
&& !term
->wrapnext
)
1322 term
->wrapnext
= FALSE
;
1324 if (!term
->cfg
->no_dbackspace
) /* destructive bksp might be disabled */
1325 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1327 /* Or normal C0 controls. */
1328 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1330 case '\005': /* terminal type query */
1331 /* Strictly speaking this is VT100 but a VT100 defaults to
1332 * no response. Other terminals respond at their option.
1334 * Don't put a CR in the default string as this tends to
1335 * upset some weird software.
1337 * An xterm returns "xterm" (5 characters)
1339 compatibility(ANSIMIN
);
1341 char abuf
[256], *s
, *d
;
1343 for (s
= term
->cfg
->answerback
, d
= abuf
; *s
; s
++) {
1345 if (*s
>= 'a' && *s
<= 'z')
1346 *d
++ = (*s
- ('a' - 1));
1347 else if ((*s
>= '@' && *s
<= '_') ||
1348 *s
== '?' || (*s
& 0x80))
1353 } else if (*s
== '^') {
1358 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1364 struct beeptime
*newbeep
;
1365 unsigned long ticks
;
1367 ticks
= GETTICKCOUNT();
1369 if (!term
->beep_overloaded
) {
1370 newbeep
= smalloc(sizeof(struct beeptime
));
1371 newbeep
->ticks
= ticks
;
1372 newbeep
->next
= NULL
;
1373 if (!term
->beephead
)
1374 term
->beephead
= newbeep
;
1376 term
->beeptail
->next
= newbeep
;
1377 term
->beeptail
= newbeep
;
1382 * Throw out any beeps that happened more than
1385 while (term
->beephead
&&
1386 term
->beephead
->ticks
< ticks
- term
->cfg
->bellovl_t
) {
1387 struct beeptime
*tmp
= term
->beephead
;
1388 term
->beephead
= tmp
->next
;
1390 if (!term
->beephead
)
1391 term
->beeptail
= NULL
;
1395 if (term
->cfg
->bellovl
&& term
->beep_overloaded
&&
1396 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
->bellovl_s
) {
1398 * If we're currently overloaded and the
1399 * last beep was more than s seconds ago,
1400 * leave overload mode.
1402 term
->beep_overloaded
= FALSE
;
1403 } else if (term
->cfg
->bellovl
&& !term
->beep_overloaded
&&
1404 term
->nbeeps
>= term
->cfg
->bellovl_n
) {
1406 * Now, if we have n or more beeps
1407 * remaining in the queue, go into overload
1410 term
->beep_overloaded
= TRUE
;
1412 term
->lastbeep
= ticks
;
1415 * Perform an actual beep if we're not overloaded.
1417 if (!term
->cfg
->bellovl
|| !term
->beep_overloaded
) {
1418 beep(term
->frontend
, term
->cfg
->beep
);
1419 if (term
->cfg
->beep
== BELL_VISUAL
) {
1420 term
->in_vbell
= TRUE
;
1421 term
->vbell_startpoint
= ticks
;
1429 if (term
->curs
.x
== 0 &&
1430 (term
->curs
.y
== 0 || term
->wrap
== 0))
1432 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1433 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1434 else if (term
->wrapnext
)
1435 term
->wrapnext
= FALSE
;
1439 term
->seen_disp_event
= TRUE
;
1442 compatibility(VT100
);
1446 compatibility(VT100
);
1450 if (term
->vt52_mode
)
1451 term
->termstate
= VT52_ESC
;
1453 compatibility(ANSIMIN
);
1454 term
->termstate
= SEEN_ESC
;
1455 term
->esc_query
= FALSE
;
1460 term
->wrapnext
= FALSE
;
1462 term
->seen_disp_event
= TRUE
;
1463 term
->paste_hold
= 0;
1465 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1468 if (has_compat(SCOANSI
)) {
1469 move(term
, 0, 0, 0);
1470 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1472 term
->wrapnext
= FALSE
;
1473 term
->seen_disp_event
= 1;
1477 compatibility(VT100
);
1479 if (term
->curs
.y
== term
->marg_b
)
1480 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1481 else if (term
->curs
.y
< term
->rows
- 1)
1483 if (term
->cfg
->lfhascr
)
1486 term
->wrapnext
= FALSE
;
1487 term
->seen_disp_event
= 1;
1488 term
->paste_hold
= 0;
1490 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1494 pos old_curs
= term
->curs
;
1495 unsigned long *ldata
= lineptr(term
->curs
.y
);
1499 } while (term
->curs
.x
< term
->cols
- 1 &&
1500 !term
->tabs
[term
->curs
.x
]);
1502 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1503 if (term
->curs
.x
>= term
->cols
/ 2)
1504 term
->curs
.x
= term
->cols
/ 2 - 1;
1506 if (term
->curs
.x
>= term
->cols
)
1507 term
->curs
.x
= term
->cols
- 1;
1511 check_selection(term
, old_curs
, term
->curs
);
1513 term
->seen_disp_event
= TRUE
;
1517 switch (term
->termstate
) {
1519 /* Only graphic characters get this far;
1520 * ctrls are stripped above */
1521 if (term
->wrapnext
&& term
->wrap
) {
1522 term
->cpos
[1] |= LATTR_WRAPPED
;
1523 if (term
->curs
.y
== term
->marg_b
)
1524 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1525 else if (term
->curs
.y
< term
->rows
- 1)
1529 term
->wrapnext
= FALSE
;
1533 if (term
->selstate
!= NO_SELECTION
) {
1534 pos cursplus
= term
->curs
;
1536 check_selection(term
, term
->curs
, cursplus
);
1538 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1540 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1542 extern int wcwidth(wchar_t ucs
);
1547 width
= wcwidth((wchar_t) c
);
1550 *term
->cpos
++ = c
| term
->curr_attr
;
1551 if (++term
->curs
.x
== term
->cols
) {
1552 *term
->cpos
|= LATTR_WRAPPED
;
1553 if (term
->curs
.y
== term
->marg_b
)
1554 scroll(term
, term
->marg_t
, term
->marg_b
,
1556 else if (term
->curs
.y
< term
->rows
- 1)
1561 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1564 *term
->cpos
++ = c
| term
->curr_attr
;
1571 if (term
->curs
.x
== term
->cols
) {
1574 term
->wrapnext
= TRUE
;
1575 if (term
->wrap
&& term
->vt52_mode
) {
1576 term
->cpos
[1] |= LATTR_WRAPPED
;
1577 if (term
->curs
.y
== term
->marg_b
)
1578 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1579 else if (term
->curs
.y
< term
->rows
- 1)
1583 term
->wrapnext
= FALSE
;
1586 term
->seen_disp_event
= 1;
1591 * This state is virtually identical to SEEN_ESC, with the
1592 * exception that we have an OSC sequence in the pipeline,
1593 * and _if_ we see a backslash, we process it.
1597 term
->termstate
= TOPLEVEL
;
1600 /* else fall through */
1602 if (c
>= ' ' && c
<= '/') {
1603 if (term
->esc_query
)
1604 term
->esc_query
= -1;
1606 term
->esc_query
= c
;
1609 term
->termstate
= TOPLEVEL
;
1610 switch (ANSI(c
, term
->esc_query
)) {
1611 case '[': /* enter CSI mode */
1612 term
->termstate
= SEEN_CSI
;
1613 term
->esc_nargs
= 1;
1614 term
->esc_args
[0] = ARG_DEFAULT
;
1615 term
->esc_query
= FALSE
;
1617 case ']': /* xterm escape sequences */
1618 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1619 compatibility(OTHER
);
1620 term
->termstate
= SEEN_OSC
;
1621 term
->esc_args
[0] = 0;
1623 case '7': /* save cursor */
1624 compatibility(VT100
);
1625 save_cursor(term
, TRUE
);
1627 case '8': /* restore cursor */
1628 compatibility(VT100
);
1629 save_cursor(term
, FALSE
);
1630 term
->seen_disp_event
= TRUE
;
1633 compatibility(VT100
);
1634 term
->app_keypad_keys
= TRUE
;
1637 compatibility(VT100
);
1638 term
->app_keypad_keys
= FALSE
;
1640 case 'D': /* exactly equivalent to LF */
1641 compatibility(VT100
);
1642 if (term
->curs
.y
== term
->marg_b
)
1643 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1644 else if (term
->curs
.y
< term
->rows
- 1)
1647 term
->wrapnext
= FALSE
;
1648 term
->seen_disp_event
= TRUE
;
1650 case 'E': /* exactly equivalent to CR-LF */
1651 compatibility(VT100
);
1653 if (term
->curs
.y
== term
->marg_b
)
1654 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1655 else if (term
->curs
.y
< term
->rows
- 1)
1658 term
->wrapnext
= FALSE
;
1659 term
->seen_disp_event
= TRUE
;
1661 case 'M': /* reverse index - backwards LF */
1662 compatibility(VT100
);
1663 if (term
->curs
.y
== term
->marg_t
)
1664 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1665 else if (term
->curs
.y
> 0)
1668 term
->wrapnext
= FALSE
;
1669 term
->seen_disp_event
= TRUE
;
1671 case 'Z': /* terminal type query */
1672 compatibility(VT100
);
1674 ldisc_send(term
->ldisc
, term
->id_string
,
1675 strlen(term
->id_string
), 0);
1677 case 'c': /* restore power-on settings */
1678 compatibility(VT100
);
1680 if (term
->ldisc
) /* cause ldisc to notice changes */
1681 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1682 if (term
->reset_132
) {
1683 if (!term
->cfg
->no_remote_resize
)
1684 request_resize(term
->frontend
, 80, term
->rows
);
1685 term
->reset_132
= 0;
1689 term
->seen_disp_event
= TRUE
;
1691 case 'H': /* set a tab */
1692 compatibility(VT100
);
1693 term
->tabs
[term
->curs
.x
] = TRUE
;
1696 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1697 compatibility(VT100
);
1699 unsigned long *ldata
;
1703 for (i
= 0; i
< term
->rows
; i
++) {
1705 for (j
= 0; j
< term
->cols
; j
++)
1706 ldata
[j
] = ATTR_DEFAULT
| 'E';
1707 ldata
[term
->cols
] = 0;
1710 term
->seen_disp_event
= TRUE
;
1711 scrtop
.x
= scrtop
.y
= 0;
1713 scrbot
.y
= term
->rows
;
1714 check_selection(term
, scrtop
, scrbot
);
1718 case ANSI('3', '#'):
1719 case ANSI('4', '#'):
1720 case ANSI('5', '#'):
1721 case ANSI('6', '#'):
1722 compatibility(VT100
);
1724 unsigned long nlattr
;
1725 unsigned long *ldata
;
1726 switch (ANSI(c
, term
->esc_query
)) {
1727 case ANSI('3', '#'):
1730 case ANSI('4', '#'):
1733 case ANSI('5', '#'):
1734 nlattr
= LATTR_NORM
;
1736 default: /* spiritually case ANSI('6', '#'): */
1737 nlattr
= LATTR_WIDE
;
1740 ldata
= lineptr(term
->curs
.y
);
1741 ldata
[term
->cols
] &= ~LATTR_MODE
;
1742 ldata
[term
->cols
] |= nlattr
;
1746 case ANSI('A', '('):
1747 compatibility(VT100
);
1748 if (!term
->cfg
->no_remote_charset
)
1749 term
->cset_attr
[0] = ATTR_GBCHR
;
1751 case ANSI('B', '('):
1752 compatibility(VT100
);
1753 if (!term
->cfg
->no_remote_charset
)
1754 term
->cset_attr
[0] = ATTR_ASCII
;
1756 case ANSI('0', '('):
1757 compatibility(VT100
);
1758 if (!term
->cfg
->no_remote_charset
)
1759 term
->cset_attr
[0] = ATTR_LINEDRW
;
1761 case ANSI('U', '('):
1762 compatibility(OTHER
);
1763 if (!term
->cfg
->no_remote_charset
)
1764 term
->cset_attr
[0] = ATTR_SCOACS
;
1767 case ANSI('A', ')'):
1768 compatibility(VT100
);
1769 if (!term
->cfg
->no_remote_charset
)
1770 term
->cset_attr
[1] = ATTR_GBCHR
;
1772 case ANSI('B', ')'):
1773 compatibility(VT100
);
1774 if (!term
->cfg
->no_remote_charset
)
1775 term
->cset_attr
[1] = ATTR_ASCII
;
1777 case ANSI('0', ')'):
1778 compatibility(VT100
);
1779 if (!term
->cfg
->no_remote_charset
)
1780 term
->cset_attr
[1] = ATTR_LINEDRW
;
1782 case ANSI('U', ')'):
1783 compatibility(OTHER
);
1784 if (!term
->cfg
->no_remote_charset
)
1785 term
->cset_attr
[1] = ATTR_SCOACS
;
1788 case ANSI('8', '%'): /* Old Linux code */
1789 case ANSI('G', '%'):
1790 compatibility(OTHER
);
1791 if (!term
->cfg
->no_remote_charset
)
1794 case ANSI('@', '%'):
1795 compatibility(OTHER
);
1796 if (!term
->cfg
->no_remote_charset
)
1802 term
->termstate
= TOPLEVEL
; /* default */
1804 if (term
->esc_nargs
<= ARGS_MAX
) {
1805 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1806 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1807 term
->esc_args
[term
->esc_nargs
- 1] =
1808 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1810 term
->termstate
= SEEN_CSI
;
1811 } else if (c
== ';') {
1812 if (++term
->esc_nargs
<= ARGS_MAX
)
1813 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1814 term
->termstate
= SEEN_CSI
;
1815 } else if (c
< '@') {
1816 if (term
->esc_query
)
1817 term
->esc_query
= -1;
1819 term
->esc_query
= TRUE
;
1821 term
->esc_query
= c
;
1822 term
->termstate
= SEEN_CSI
;
1824 switch (ANSI(c
, term
->esc_query
)) {
1825 case 'A': /* move up N lines */
1826 move(term
, term
->curs
.x
,
1827 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1828 term
->seen_disp_event
= TRUE
;
1830 case 'e': /* move down N lines */
1831 compatibility(ANSI
);
1834 move(term
, term
->curs
.x
,
1835 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1836 term
->seen_disp_event
= TRUE
;
1838 case ANSI('c', '>'): /* report xterm version */
1839 compatibility(OTHER
);
1840 /* this reports xterm version 136 so that VIM can
1841 use the drag messages from the mouse reporting */
1843 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1845 case 'a': /* move right N cols */
1846 compatibility(ANSI
);
1849 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1851 term
->seen_disp_event
= TRUE
;
1853 case 'D': /* move left N cols */
1854 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1856 term
->seen_disp_event
= TRUE
;
1858 case 'E': /* move down N lines and CR */
1859 compatibility(ANSI
);
1861 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1862 term
->seen_disp_event
= TRUE
;
1864 case 'F': /* move up N lines and CR */
1865 compatibility(ANSI
);
1867 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1868 term
->seen_disp_event
= TRUE
;
1871 case '`': /* set horizontal posn */
1872 compatibility(ANSI
);
1873 move(term
, def(term
->esc_args
[0], 1) - 1,
1875 term
->seen_disp_event
= TRUE
;
1877 case 'd': /* set vertical posn */
1878 compatibility(ANSI
);
1879 move(term
, term
->curs
.x
,
1880 ((term
->dec_om ? term
->marg_t
: 0) +
1881 def(term
->esc_args
[0], 1) - 1),
1882 (term
->dec_om ?
2 : 0));
1883 term
->seen_disp_event
= TRUE
;
1886 case 'f': /* set horz and vert posns at once */
1887 if (term
->esc_nargs
< 2)
1888 term
->esc_args
[1] = ARG_DEFAULT
;
1889 move(term
, def(term
->esc_args
[1], 1) - 1,
1890 ((term
->dec_om ? term
->marg_t
: 0) +
1891 def(term
->esc_args
[0], 1) - 1),
1892 (term
->dec_om ?
2 : 0));
1893 term
->seen_disp_event
= TRUE
;
1895 case 'J': /* erase screen or parts of it */
1897 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1900 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1903 term
->seen_disp_event
= TRUE
;
1905 case 'K': /* erase line or parts of it */
1907 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1910 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1912 term
->seen_disp_event
= TRUE
;
1914 case 'L': /* insert lines */
1915 compatibility(VT102
);
1916 if (term
->curs
.y
<= term
->marg_b
)
1917 scroll(term
, term
->curs
.y
, term
->marg_b
,
1918 -def(term
->esc_args
[0], 1), FALSE
);
1920 term
->seen_disp_event
= TRUE
;
1922 case 'M': /* delete lines */
1923 compatibility(VT102
);
1924 if (term
->curs
.y
<= term
->marg_b
)
1925 scroll(term
, term
->curs
.y
, term
->marg_b
,
1926 def(term
->esc_args
[0], 1),
1929 term
->seen_disp_event
= TRUE
;
1931 case '@': /* insert chars */
1932 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1933 compatibility(VT102
);
1934 insch(term
, def(term
->esc_args
[0], 1));
1935 term
->seen_disp_event
= TRUE
;
1937 case 'P': /* delete chars */
1938 compatibility(VT102
);
1939 insch(term
, -def(term
->esc_args
[0], 1));
1940 term
->seen_disp_event
= TRUE
;
1942 case 'c': /* terminal type query */
1943 compatibility(VT100
);
1944 /* This is the response for a VT102 */
1946 ldisc_send(term
->ldisc
, term
->id_string
,
1947 strlen(term
->id_string
), 0);
1949 case 'n': /* cursor position query */
1951 if (term
->esc_args
[0] == 6) {
1953 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1955 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1956 } else if (term
->esc_args
[0] == 5) {
1957 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1961 case 'h': /* toggle modes to high */
1963 compatibility(VT100
);
1966 for (i
= 0; i
< term
->esc_nargs
; i
++)
1967 toggle_mode(term
, term
->esc_args
[i
],
1968 term
->esc_query
, TRUE
);
1973 compatibility(VT100
);
1975 if (term
->esc_nargs
!= 1) break;
1976 if (term
->esc_args
[0] == 5 && *term
->cfg
->printer
) {
1977 term
->printing
= TRUE
;
1978 term
->only_printing
= !term
->esc_query
;
1979 term
->print_state
= 0;
1980 term_print_setup(term
);
1981 } else if (term
->esc_args
[0] == 4 &&
1983 term_print_finish(term
);
1987 case 'l': /* toggle modes to low */
1989 compatibility(VT100
);
1992 for (i
= 0; i
< term
->esc_nargs
; i
++)
1993 toggle_mode(term
, term
->esc_args
[i
],
1994 term
->esc_query
, FALSE
);
1997 case 'g': /* clear tabs */
1998 compatibility(VT100
);
1999 if (term
->esc_nargs
== 1) {
2000 if (term
->esc_args
[0] == 0) {
2001 term
->tabs
[term
->curs
.x
] = FALSE
;
2002 } else if (term
->esc_args
[0] == 3) {
2004 for (i
= 0; i
< term
->cols
; i
++)
2005 term
->tabs
[i
] = FALSE
;
2009 case 'r': /* set scroll margins */
2010 compatibility(VT100
);
2011 if (term
->esc_nargs
<= 2) {
2013 top
= def(term
->esc_args
[0], 1) - 1;
2014 bot
= (term
->esc_nargs
<= 1
2015 || term
->esc_args
[1] == 0 ?
2017 def(term
->esc_args
[1], term
->rows
)) - 1;
2018 if (bot
>= term
->rows
)
2019 bot
= term
->rows
- 1;
2020 /* VTTEST Bug 9 - if region is less than 2 lines
2021 * don't change region.
2023 if (bot
- top
> 0) {
2028 * I used to think the cursor should be
2029 * placed at the top of the newly marginned
2030 * area. Apparently not: VMS TPU falls over
2033 * Well actually it should for
2036 term
->curs
.y
= (term
->dec_om ?
2039 term
->seen_disp_event
= TRUE
;
2043 case 'm': /* set graphics rendition */
2046 * A VT100 without the AVO only had one
2047 * attribute, either underline or
2048 * reverse video depending on the
2049 * cursor type, this was selected by
2053 * This is sometimes DIM, eg on the
2056 * This is sometimes INVIS various ANSI.
2058 * This like 22 disables BOLD, DIM and INVIS
2060 * The ANSI colours appear on any
2061 * terminal that has colour (obviously)
2062 * but the interaction between sgr0 and
2063 * the colours varies but is usually
2064 * related to the background colour
2065 * erase item. The interaction between
2066 * colour attributes and the mono ones
2067 * is also very implementation
2070 * The 39 and 49 attributes are likely
2071 * to be unimplemented.
2074 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2075 switch (def(term
->esc_args
[i
], 0)) {
2076 case 0: /* restore defaults */
2077 term
->curr_attr
= ATTR_DEFAULT
;
2079 case 1: /* enable bold */
2080 compatibility(VT100AVO
);
2081 term
->curr_attr
|= ATTR_BOLD
;
2083 case 21: /* (enable double underline) */
2084 compatibility(OTHER
);
2085 case 4: /* enable underline */
2086 compatibility(VT100AVO
);
2087 term
->curr_attr
|= ATTR_UNDER
;
2089 case 5: /* enable blink */
2090 compatibility(VT100AVO
);
2091 term
->curr_attr
|= ATTR_BLINK
;
2093 case 7: /* enable reverse video */
2094 term
->curr_attr
|= ATTR_REVERSE
;
2096 case 10: /* SCO acs off */
2097 compatibility(SCOANSI
);
2098 if (term
->cfg
->no_remote_charset
) break;
2099 term
->sco_acs
= 0; break;
2100 case 11: /* SCO acs on */
2101 compatibility(SCOANSI
);
2102 if (term
->cfg
->no_remote_charset
) break;
2103 term
->sco_acs
= 1; break;
2104 case 12: /* SCO acs on flipped */
2105 compatibility(SCOANSI
);
2106 if (term
->cfg
->no_remote_charset
) break;
2107 term
->sco_acs
= 2; break;
2108 case 22: /* disable bold */
2109 compatibility2(OTHER
, VT220
);
2110 term
->curr_attr
&= ~ATTR_BOLD
;
2112 case 24: /* disable underline */
2113 compatibility2(OTHER
, VT220
);
2114 term
->curr_attr
&= ~ATTR_UNDER
;
2116 case 25: /* disable blink */
2117 compatibility2(OTHER
, VT220
);
2118 term
->curr_attr
&= ~ATTR_BLINK
;
2120 case 27: /* disable reverse video */
2121 compatibility2(OTHER
, VT220
);
2122 term
->curr_attr
&= ~ATTR_REVERSE
;
2133 term
->curr_attr
&= ~ATTR_FGMASK
;
2135 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2137 case 39: /* default-foreground */
2138 term
->curr_attr
&= ~ATTR_FGMASK
;
2139 term
->curr_attr
|= ATTR_DEFFG
;
2150 term
->curr_attr
&= ~ATTR_BGMASK
;
2152 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2154 case 49: /* default-background */
2155 term
->curr_attr
&= ~ATTR_BGMASK
;
2156 term
->curr_attr
|= ATTR_DEFBG
;
2161 term
->erase_char
= (' ' | ATTR_ASCII
|
2167 case 's': /* save cursor */
2168 save_cursor(term
, TRUE
);
2170 case 'u': /* restore cursor */
2171 save_cursor(term
, FALSE
);
2172 term
->seen_disp_event
= TRUE
;
2174 case 't': /* set page size - ie window height */
2176 * VT340/VT420 sequence DECSLPP, DEC only allows values
2177 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2178 * illegal values (eg first arg 1..9) for window changing
2181 if (term
->esc_nargs
<= 1
2182 && (term
->esc_args
[0] < 1 ||
2183 term
->esc_args
[0] >= 24)) {
2184 compatibility(VT340TEXT
);
2185 if (!term
->cfg
->no_remote_resize
)
2186 request_resize(term
->frontend
, term
->cols
,
2187 def(term
->esc_args
[0], 24));
2189 } else if (term
->esc_nargs
>= 1 &&
2190 term
->esc_args
[0] >= 1 &&
2191 term
->esc_args
[0] < 24) {
2192 compatibility(OTHER
);
2194 switch (term
->esc_args
[0]) {
2198 set_iconic(term
->frontend
, FALSE
);
2201 set_iconic(term
->frontend
, TRUE
);
2204 if (term
->esc_nargs
>= 3) {
2205 if (!term
->cfg
->no_remote_resize
)
2206 move_window(term
->frontend
,
2207 def(term
->esc_args
[1], 0),
2208 def(term
->esc_args
[2], 0));
2212 /* We should resize the window to a given
2213 * size in pixels here, but currently our
2214 * resizing code isn't healthy enough to
2219 set_zorder(term
->frontend
, TRUE
);
2222 /* move to bottom */
2223 set_zorder(term
->frontend
, FALSE
);
2226 refresh_window(term
->frontend
);
2229 if (term
->esc_nargs
>= 3) {
2230 if (!term
->cfg
->no_remote_resize
)
2231 request_resize(term
->frontend
,
2232 def(term
->esc_args
[2], term
->cfg
->width
),
2233 def(term
->esc_args
[1], term
->cfg
->height
));
2237 if (term
->esc_nargs
>= 2)
2238 set_zoomed(term
->frontend
,
2244 ldisc_send(term
->ldisc
,
2245 is_iconic(term
->frontend
) ?
2246 "\033[1t" : "\033[2t", 4, 0);
2250 get_window_pos(term
->frontend
, &x
, &y
);
2251 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2252 ldisc_send(term
->ldisc
, buf
, len
, 0);
2257 get_window_pixels(term
->frontend
, &x
, &y
);
2258 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2259 ldisc_send(term
->ldisc
, buf
, len
, 0);
2264 len
= sprintf(buf
, "\033[8;%d;%dt",
2265 term
->rows
, term
->cols
);
2266 ldisc_send(term
->ldisc
, buf
, len
, 0);
2271 * Hmmm. Strictly speaking we
2272 * should return `the size of the
2273 * screen in characters', but
2274 * that's not easy: (a) window
2275 * furniture being what it is it's
2276 * hard to compute, and (b) in
2277 * resize-font mode maximising the
2278 * window wouldn't change the
2279 * number of characters. *shrug*. I
2280 * think we'll ignore it for the
2281 * moment and see if anyone
2282 * complains, and then ask them
2283 * what they would like it to do.
2288 p
= get_window_title(term
->frontend
, TRUE
);
2290 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2291 ldisc_send(term
->ldisc
, p
, len
, 0);
2292 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2297 p
= get_window_title(term
->frontend
,FALSE
);
2299 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2300 ldisc_send(term
->ldisc
, p
, len
, 0);
2301 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2308 compatibility(SCOANSI
);
2309 scroll(term
, term
->marg_t
, term
->marg_b
,
2310 def(term
->esc_args
[0], 1), TRUE
);
2312 term
->wrapnext
= FALSE
;
2313 term
->seen_disp_event
= TRUE
;
2316 compatibility(SCOANSI
);
2317 scroll(term
, term
->marg_t
, term
->marg_b
,
2318 -def(term
->esc_args
[0], 1), TRUE
);
2320 term
->wrapnext
= FALSE
;
2321 term
->seen_disp_event
= TRUE
;
2323 case ANSI('|', '*'):
2324 /* VT420 sequence DECSNLS
2325 * Set number of lines on screen
2326 * VT420 uses VGA like hardware and can support any size in
2327 * reasonable range (24..49 AIUI) with no default specified.
2329 compatibility(VT420
);
2330 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2331 if (!term
->cfg
->no_remote_resize
)
2332 request_resize(term
->frontend
, term
->cols
,
2333 def(term
->esc_args
[0],
2334 term
->cfg
->height
));
2338 case ANSI('|', '$'):
2339 /* VT340/VT420 sequence DECSCPP
2340 * Set number of columns per page
2341 * Docs imply range is only 80 or 132, but I'll allow any.
2343 compatibility(VT340TEXT
);
2344 if (term
->esc_nargs
<= 1) {
2345 if (!term
->cfg
->no_remote_resize
)
2346 request_resize(term
->frontend
,
2347 def(term
->esc_args
[0],
2348 term
->cfg
->width
), term
->rows
);
2352 case 'X': /* write N spaces w/o moving cursor */
2353 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2354 compatibility(ANSIMIN
);
2356 int n
= def(term
->esc_args
[0], 1);
2358 unsigned long *p
= term
->cpos
;
2359 if (n
> term
->cols
- term
->curs
.x
)
2360 n
= term
->cols
- term
->curs
.x
;
2361 cursplus
= term
->curs
;
2363 check_selection(term
, term
->curs
, cursplus
);
2365 *p
++ = term
->erase_char
;
2366 term
->seen_disp_event
= TRUE
;
2369 case 'x': /* report terminal characteristics */
2370 compatibility(VT100
);
2373 int i
= def(term
->esc_args
[0], 0);
2374 if (i
== 0 || i
== 1) {
2375 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2377 ldisc_send(term
->ldisc
, buf
, 20, 0);
2381 case 'Z': /* BackTab for xterm */
2382 compatibility(OTHER
);
2384 int i
= def(term
->esc_args
[0], 1);
2385 pos old_curs
= term
->curs
;
2387 for(;i
>0 && term
->curs
.x
>0; i
--) {
2390 } while (term
->curs
.x
>0 &&
2391 !term
->tabs
[term
->curs
.x
]);
2394 check_selection(term
, old_curs
, term
->curs
);
2397 case ANSI('L', '='):
2398 compatibility(OTHER
);
2399 term
->use_bce
= (term
->esc_args
[0] <= 0);
2400 term
->erase_char
= ERASE_CHAR
;
2402 term
->erase_char
= (' ' | ATTR_ASCII
|
2404 (ATTR_FGMASK
| ATTR_BGMASK
)));
2406 case ANSI('E', '='):
2407 compatibility(OTHER
);
2408 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2410 case ANSI('p', '"'):
2412 * Allow the host to make this emulator a
2413 * 'perfect' VT102. This first appeared in
2414 * the VT220, but we do need to get back to
2415 * PuTTY mode so I won't check it.
2417 * The arg in 40..42,50 are a PuTTY extension.
2418 * The 2nd arg, 8bit vs 7bit is not checked.
2420 * Setting VT102 mode should also change
2421 * the Fkeys to generate PF* codes as a
2422 * real VT102 has no Fkeys. The VT220 does
2423 * this, F11..F13 become ESC,BS,LF other
2424 * Fkeys send nothing.
2426 * Note ESC c will NOT change this!
2429 switch (term
->esc_args
[0]) {
2431 term
->compatibility_level
&= ~TM_VTXXX
;
2432 term
->compatibility_level
|= TM_VT102
;
2435 term
->compatibility_level
&= ~TM_VTXXX
;
2436 term
->compatibility_level
|= TM_VT220
;
2440 if (term
->esc_args
[0] > 60 &&
2441 term
->esc_args
[0] < 70)
2442 term
->compatibility_level
|= TM_VTXXX
;
2446 term
->compatibility_level
&= TM_VTXXX
;
2449 term
->compatibility_level
= TM_PUTTY
;
2452 term
->compatibility_level
= TM_SCOANSI
;
2456 term
->compatibility_level
= TM_PUTTY
;
2462 /* Change the response to CSI c */
2463 if (term
->esc_args
[0] == 50) {
2466 strcpy(term
->id_string
, "\033[?");
2467 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2469 strcat(term
->id_string
, ";");
2470 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2471 strcat(term
->id_string
, lbuf
);
2473 strcat(term
->id_string
, "c");
2476 /* Is this a good idea ?
2477 * Well we should do a soft reset at this point ...
2479 if (!has_compat(VT420
) && has_compat(VT100
)) {
2480 if (!term
->cfg
->no_remote_resize
) {
2481 if (term
->reset_132
)
2482 request_resize(132, 24);
2484 request_resize(80, 24);
2492 term
->osc_w
= FALSE
;
2494 case 'P': /* Linux palette sequence */
2495 term
->termstate
= SEEN_OSC_P
;
2496 term
->osc_strlen
= 0;
2498 case 'R': /* Linux palette reset */
2499 palette_reset(term
->frontend
);
2500 term_invalidate(term
);
2501 term
->termstate
= TOPLEVEL
;
2503 case 'W': /* word-set */
2504 term
->termstate
= SEEN_OSC_W
;
2517 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2521 * Grotty hack to support xterm and DECterm title
2522 * sequences concurrently.
2524 if (term
->esc_args
[0] == 2) {
2525 term
->esc_args
[0] = 1;
2528 /* else fall through */
2530 term
->termstate
= OSC_STRING
;
2531 term
->osc_strlen
= 0;
2536 * This OSC stuff is EVIL. It takes just one character to get into
2537 * sysline mode and it's not initially obvious how to get out.
2538 * So I've added CR and LF as string aborts.
2539 * This shouldn't effect compatibility as I believe embedded
2540 * control characters are supposed to be interpreted (maybe?)
2541 * and they don't display anything useful anyway.
2545 if (c
== '\012' || c
== '\015') {
2546 term
->termstate
= TOPLEVEL
;
2547 } else if (c
== 0234 || c
== '\007') {
2549 * These characters terminate the string; ST and BEL
2550 * terminate the sequence and trigger instant
2551 * processing of it, whereas ESC goes back to SEEN_ESC
2552 * mode unless it is followed by \, in which case it is
2553 * synonymous with ST in the first place.
2556 term
->termstate
= TOPLEVEL
;
2557 } else if (c
== '\033')
2558 term
->termstate
= OSC_MAYBE_ST
;
2559 else if (term
->osc_strlen
< OSC_STR_MAX
)
2560 term
->osc_string
[term
->osc_strlen
++] = c
;
2564 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2566 if (c
>= '0' && c
<= '9')
2568 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2570 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2573 term
->termstate
= TOPLEVEL
;
2576 term
->osc_string
[term
->osc_strlen
++] = val
;
2577 if (term
->osc_strlen
>= 7) {
2578 palette_set(term
->frontend
, term
->osc_string
[0],
2579 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2580 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2581 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2582 term_invalidate(term
);
2583 term
->termstate
= TOPLEVEL
;
2599 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2602 term
->termstate
= OSC_STRING
;
2603 term
->osc_strlen
= 0;
2607 term
->termstate
= TOPLEVEL
;
2608 term
->seen_disp_event
= TRUE
;
2611 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2614 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2617 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2620 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2623 * From the VT100 Manual
2624 * NOTE: The special graphics characters in the VT100
2625 * are different from those in the VT52
2627 * From VT102 manual:
2628 * 137 _ Blank - Same
2629 * 140 ` Reserved - Humm.
2630 * 141 a Solid rectangle - Similar
2631 * 142 b 1/ - Top half of fraction for the
2632 * 143 c 3/ - subscript numbers below.
2635 * 146 f Degrees - Same
2636 * 147 g Plus or minus - Same
2638 * 151 i Ellipsis (dots)
2641 * 154 l Bar at scan 0
2642 * 155 m Bar at scan 1
2643 * 156 n Bar at scan 2
2644 * 157 o Bar at scan 3 - Similar
2645 * 160 p Bar at scan 4 - Similar
2646 * 161 q Bar at scan 5 - Similar
2647 * 162 r Bar at scan 6 - Same
2648 * 163 s Bar at scan 7 - Similar
2663 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2666 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2669 move(term
, 0, 0, 0);
2672 if (term
->curs
.y
== 0)
2673 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2674 else if (term
->curs
.y
> 0)
2677 term
->wrapnext
= FALSE
;
2680 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2684 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2688 /* XXX Print cursor line */
2691 /* XXX Start controller mode */
2694 /* XXX Stop controller mode */
2698 term
->termstate
= VT52_Y1
;
2702 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2705 term
->app_keypad_keys
= TRUE
;
2708 term
->app_keypad_keys
= FALSE
;
2711 /* XXX This should switch to VT100 mode not current or default
2712 * VT mode. But this will only have effect in a VT220+
2715 term
->vt52_mode
= FALSE
;
2716 term
->blink_is_real
= term
->cfg
->blinktext
;
2720 /* XXX Enter auto print mode */
2723 /* XXX Exit auto print mode */
2726 /* XXX Print screen */
2732 /* compatibility(ATARI) */
2733 move(term
, 0, 0, 0);
2734 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2738 /* compatibility(ATARI) */
2739 if (term
->curs
.y
<= term
->marg_b
)
2740 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2743 /* compatibility(ATARI) */
2744 if (term
->curs
.y
<= term
->marg_b
)
2745 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2748 /* compatibility(ATARI) */
2749 term
->termstate
= VT52_FG
;
2752 /* compatibility(ATARI) */
2753 term
->termstate
= VT52_BG
;
2756 /* compatibility(ATARI) */
2757 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2761 /* compatibility(ATARI) */
2762 term
->cursor_on
= TRUE
;
2765 /* compatibility(ATARI) */
2766 term
->cursor_on
= FALSE
;
2768 /* case 'j': Save cursor position - broken on ST */
2769 /* case 'k': Restore cursor position */
2771 /* compatibility(ATARI) */
2772 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2774 term
->wrapnext
= FALSE
;
2778 /* compatibility(ATARI) */
2779 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2782 /* compatibility(ATARI) */
2783 term
->curr_attr
|= ATTR_REVERSE
;
2786 /* compatibility(ATARI) */
2787 term
->curr_attr
&= ~ATTR_REVERSE
;
2789 case 'v': /* wrap Autowrap on - Wyse style */
2790 /* compatibility(ATARI) */
2793 case 'w': /* Autowrap off */
2794 /* compatibility(ATARI) */
2799 /* compatibility(OTHER) */
2800 term
->vt52_bold
= FALSE
;
2801 term
->curr_attr
= ATTR_DEFAULT
;
2803 term
->erase_char
= (' ' | ATTR_ASCII
|
2805 (ATTR_FGMASK
| ATTR_BGMASK
)));
2808 /* compatibility(VI50) */
2809 term
->curr_attr
|= ATTR_UNDER
;
2812 /* compatibility(VI50) */
2813 term
->curr_attr
&= ~ATTR_UNDER
;
2816 /* compatibility(VI50) */
2817 term
->vt52_bold
= TRUE
;
2818 term
->curr_attr
|= ATTR_BOLD
;
2821 /* compatibility(VI50) */
2822 term
->vt52_bold
= FALSE
;
2823 term
->curr_attr
&= ~ATTR_BOLD
;
2829 term
->termstate
= VT52_Y2
;
2830 move(term
, term
->curs
.x
, c
- ' ', 0);
2833 term
->termstate
= TOPLEVEL
;
2834 move(term
, c
- ' ', term
->curs
.y
, 0);
2839 term
->termstate
= TOPLEVEL
;
2840 term
->curr_attr
&= ~ATTR_FGMASK
;
2841 term
->curr_attr
&= ~ATTR_BOLD
;
2842 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2843 if ((c
& 0x8) || term
->vt52_bold
)
2844 term
->curr_attr
|= ATTR_BOLD
;
2847 term
->erase_char
= (' ' | ATTR_ASCII
|
2849 (ATTR_FGMASK
| ATTR_BGMASK
)));
2852 term
->termstate
= TOPLEVEL
;
2853 term
->curr_attr
&= ~ATTR_BGMASK
;
2854 term
->curr_attr
&= ~ATTR_BLINK
;
2855 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2857 /* Note: bold background */
2859 term
->curr_attr
|= ATTR_BLINK
;
2862 term
->erase_char
= (' ' | ATTR_ASCII
|
2864 (ATTR_FGMASK
| ATTR_BGMASK
)));
2867 default: break; /* placate gcc warning about enum use */
2869 if (term
->selstate
!= NO_SELECTION
) {
2870 pos cursplus
= term
->curs
;
2872 check_selection(term
, term
->curs
, cursplus
);
2876 term_print_flush(term
);
2881 * Compare two lines to determine whether they are sufficiently
2882 * alike to scroll-optimise one to the other. Return the degree of
2885 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2889 for (i
= n
= 0; i
< term
->cols
; i
++)
2890 n
+= (*a
++ == *b
++);
2896 * Given a context, update the window. Out of paranoia, we don't
2897 * allow WM_PAINT responses to do scrolling optimisations.
2899 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2901 int i
, j
, our_curs_y
;
2902 unsigned long rv
, cursor
;
2905 long cursor_background
= ERASE_CHAR
;
2906 unsigned long ticks
;
2909 * Check the visual bell state.
2911 if (term
->in_vbell
) {
2912 ticks
= GETTICKCOUNT();
2913 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2914 term
->in_vbell
= FALSE
;
2917 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2920 * screen array, disptop, scrtop,
2922 * cfg.blinkpc, blink_is_real, tblinker,
2923 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2926 /* Has the cursor position or type changed ? */
2927 if (term
->cursor_on
) {
2928 if (term
->has_focus
) {
2929 if (term
->blinker
|| !term
->cfg
->blink_cur
)
2930 cursor
= TATTR_ACTCURS
;
2934 cursor
= TATTR_PASCURS
;
2936 cursor
|= TATTR_RIGHTCURS
;
2939 our_curs_y
= term
->curs
.y
- term
->disptop
;
2941 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2943 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2945 if (term
->dispcurs
> term
->disptext
&&
2946 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2947 term
->dispcurs
[-1] |= ATTR_INVALID
;
2948 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2949 term
->dispcurs
[1] |= ATTR_INVALID
;
2950 *term
->dispcurs
|= ATTR_INVALID
;
2953 term
->dispcurs
= NULL
;
2955 /* The normal screen data */
2956 for (i
= 0; i
< term
->rows
; i
++) {
2957 unsigned long *ldata
;
2959 int idx
, dirty_line
, dirty_run
, selected
;
2960 unsigned long attr
= 0;
2961 int updated_line
= 0;
2964 int last_run_dirty
= 0;
2966 scrpos
.y
= i
+ term
->disptop
;
2967 ldata
= lineptr(scrpos
.y
);
2968 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2970 idx
= i
* (term
->cols
+ 1);
2971 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2972 term
->disptext
[idx
+ term
->cols
]);
2973 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2975 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2976 unsigned long tattr
, tchar
;
2977 unsigned long *d
= ldata
+ j
;
2981 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2982 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2983 switch (tchar
& CSET_MASK
) {
2985 tchar
= unitab_line
[tchar
& 0xFF];
2988 tchar
= unitab_xterm
[tchar
& 0xFF];
2991 tchar
= unitab_scoacs
[tchar
&0xFF];
2994 tattr
|= (tchar
& CSET_MASK
);
2996 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2999 /* Video reversing things */
3000 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3001 if (term
->seltype
== LEXICOGRAPHIC
)
3002 selected
= (posle(term
->selstart
, scrpos
) &&
3003 poslt(scrpos
, term
->selend
));
3005 selected
= (posPle(term
->selstart
, scrpos
) &&
3006 posPlt(scrpos
, term
->selend
));
3010 ^ (selected ? ATTR_REVERSE
: 0));
3012 /* 'Real' blinking ? */
3013 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3014 if (term
->has_focus
&& term
->tblinker
) {
3016 tattr
&= ~CSET_MASK
;
3019 tattr
&= ~ATTR_BLINK
;
3023 * Check the font we'll _probably_ be using to see if
3024 * the character is wide when we don't want it to be.
3026 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3027 if ((tattr
& ATTR_WIDE
) == 0 &&
3028 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3029 tattr
|= ATTR_NARROW
;
3030 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3031 tattr
|= ATTR_NARROW
;
3033 /* Cursor here ? Save the 'background' */
3034 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3035 cursor_background
= tattr
| tchar
;
3036 term
->dispcurs
= term
->disptext
+ idx
;
3039 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3042 break_run
= (tattr
!= attr
|| j
- start
>= sizeof(ch
));
3044 /* Special hack for VT100 Linedraw glyphs */
3045 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3046 && tchar
<= 0xBD) break_run
= TRUE
;
3048 if (!dbcs_screenfont
&& !dirty_line
) {
3049 if ((tchar
| tattr
) == term
->disptext
[idx
])
3051 else if (!dirty_run
&& ccount
== 1)
3056 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3057 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3063 if (dbcs_screenfont
)
3064 last_run_dirty
= dirty_run
;
3065 dirty_run
= dirty_line
;
3068 if ((tchar
| tattr
) != term
->disptext
[idx
])
3070 ch
[ccount
++] = (char) tchar
;
3071 term
->disptext
[idx
] = tchar
| tattr
;
3073 /* If it's a wide char step along to the next one. */
3074 if (tattr
& ATTR_WIDE
) {
3075 if (++j
< term
->cols
) {
3078 /* Cursor is here ? Ouch! */
3079 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3080 cursor_background
= *d
;
3081 term
->dispcurs
= term
->disptext
+ idx
;
3083 if (term
->disptext
[idx
] != *d
)
3085 term
->disptext
[idx
] = *d
;
3089 if (dirty_run
&& ccount
> 0) {
3090 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3094 /* Cursor on this line ? (and changed) */
3095 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3096 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3097 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3098 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3099 term
->curstype
= cursor
;
3105 * Flick the switch that says if blinking things should be shown or hidden.
3108 void term_blink(Terminal
*term
, int flg
)
3110 long now
, blink_diff
;
3112 now
= GETTICKCOUNT();
3113 blink_diff
= now
- term
->last_tblink
;
3115 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3116 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3117 term
->last_tblink
= now
;
3118 term
->tblinker
= !term
->tblinker
;
3123 term
->last_blink
= now
;
3127 blink_diff
= now
- term
->last_blink
;
3129 /* Make sure the cursor blinks no faster than system blink rate */
3130 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3133 term
->last_blink
= now
;
3134 term
->blinker
= !term
->blinker
;
3138 * Invalidate the whole screen so it will be repainted in full.
3140 void term_invalidate(Terminal
*term
)
3144 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3145 term
->disptext
[i
] = ATTR_INVALID
;
3149 * Paint the window in response to a WM_PAINT message.
3151 void term_paint(Terminal
*term
, Context ctx
,
3152 int left
, int top
, int right
, int bottom
, int immediately
)
3155 if (left
< 0) left
= 0;
3156 if (top
< 0) top
= 0;
3157 if (right
>= term
->cols
) right
= term
->cols
-1;
3158 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3160 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3161 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3162 LATTR_MODE
) == LATTR_NORM
)
3163 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3164 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3166 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3167 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3170 /* This should happen soon enough, also for some reason it sometimes
3171 * fails to actually do anything when re-sizing ... painting the wrong
3175 do_paint (term
, ctx
, FALSE
);
3179 * Attempt to scroll the scrollback. The second parameter gives the
3180 * position we want to scroll to; the first is +1 to denote that
3181 * this position is relative to the beginning of the scrollback, -1
3182 * to denote it is relative to the end, and 0 to denote that it is
3183 * relative to the current position.
3185 void term_scroll(Terminal
*term
, int rel
, int where
)
3187 int sbtop
= -count234(term
->scrollback
);
3188 #ifdef OPTIMISE_SCROLL
3189 int olddisptop
= term
->disptop
;
3191 #endif /* OPTIMISE_SCROLL */
3193 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3194 if (term
->disptop
< sbtop
)
3195 term
->disptop
= sbtop
;
3196 if (term
->disptop
> 0)
3199 #ifdef OPTIMISE_SCROLL
3200 shift
= (term
->disptop
- olddisptop
);
3201 if (shift
< term
->rows
&& shift
> -term
->rows
)
3202 scroll_display(term
, 0, term
->rows
- 1, shift
);
3203 #endif /* OPTIMISE_SCROLL */
3207 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3210 wchar_t *wbptr
; /* where next char goes within workbuf */
3212 int wblen
= 0; /* workbuf len */
3213 int buflen
; /* amount of memory allocated to workbuf */
3215 buflen
= 5120; /* Default size */
3216 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3217 wbptr
= workbuf
; /* start filling here */
3218 old_top_x
= top
.x
; /* needed for rect==1 */
3220 while (poslt(top
, bottom
)) {
3222 unsigned long *ldata
= lineptr(top
.y
);
3226 * nlpos will point at the maximum position on this line we
3227 * should copy up to. So we start it at the end of the
3231 nlpos
.x
= term
->cols
;
3234 * ... move it backwards if there's unused space at the end
3235 * of the line (and also set `nl' if this is the case,
3236 * because in normal selection mode this means we need a
3237 * newline at the end)...
3239 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3240 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3241 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3242 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3243 && poslt(top
, nlpos
))
3245 if (poslt(nlpos
, bottom
))
3250 * ... and then clip it to the terminal x coordinate if
3251 * we're doing rectangular selection. (In this case we
3252 * still did the above, so that copying e.g. the right-hand
3253 * column from a table doesn't fill with spaces on the
3257 if (nlpos
.x
> bottom
.x
)
3259 nl
= (top
.y
< bottom
.y
);
3262 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3265 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3267 wchar_t cbuf
[16], *p
;
3268 int uc
= (ldata
[top
.x
] & 0xFFFF);
3271 if (uc
== UCSWIDE
) {
3276 switch (uc
& CSET_MASK
) {
3278 if (!term
->cfg
->rawcnp
) {
3279 uc
= unitab_xterm
[uc
& 0xFF];
3283 uc
= unitab_line
[uc
& 0xFF];
3286 uc
= unitab_scoacs
[uc
&0xFF];
3289 switch (uc
& CSET_MASK
) {
3291 uc
= unitab_font
[uc
& 0xFF];
3294 uc
= unitab_oemcp
[uc
& 0xFF];
3298 set
= (uc
& CSET_MASK
);
3299 c
= (uc
& CHAR_MASK
);
3303 if (DIRECT_FONT(uc
)) {
3304 if (c
>= ' ' && c
!= 0x7F) {
3308 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3310 buf
[1] = ldata
[top
.x
+ 1];
3311 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3315 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3319 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3326 for (p
= cbuf
; *p
; p
++) {
3327 /* Enough overhead for trailing NL and nul */
3328 if (wblen
>= buflen
- 16) {
3331 sizeof(wchar_t) * (buflen
+= 100));
3332 wbptr
= workbuf
+ wblen
;
3341 for (i
= 0; i
< sel_nl_sz
; i
++) {
3343 *wbptr
++ = sel_nl
[i
];
3347 top
.x
= rect ? old_top_x
: 0;
3349 #if SELECTION_NUL_TERMINATED
3353 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3354 if (buflen
> 0) /* indicates we allocated this buffer */
3358 void term_copyall(Terminal
*term
)
3361 top
.y
= -count234(term
->scrollback
);
3363 clipme(term
, top
, term
->curs
, 0);
3367 * The wordness array is mainly for deciding the disposition of the
3368 * US-ASCII characters.
3370 static int wordtype(Terminal
*term
, int uc
)
3373 int start
, end
, ctype
;
3375 static const struct ucsword ucs_words
[] = {
3381 0x037e, 0x037e, 1}, /* Greek question mark */
3383 0x0387, 0x0387, 1}, /* Greek ano teleia */
3385 0x055a, 0x055f, 1}, /* Armenian punctuation */
3387 0x0589, 0x0589, 1}, /* Armenian full stop */
3389 0x0700, 0x070d, 1}, /* Syriac punctuation */
3391 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3393 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3395 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3397 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3399 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3401 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3403 0x2000, 0x200a, 0}, /* Various spaces */
3405 0x2070, 0x207f, 2}, /* superscript */
3407 0x2080, 0x208f, 2}, /* subscript */
3409 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3411 0x3000, 0x3000, 0}, /* ideographic space */
3413 0x3001, 0x3020, 1}, /* ideographic punctuation */
3415 0x303f, 0x309f, 3}, /* Hiragana */
3417 0x30a0, 0x30ff, 3}, /* Katakana */
3419 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3421 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3423 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3425 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3427 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3429 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3431 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3433 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3435 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3439 const struct ucsword
*wptr
;
3441 uc
&= (CSET_MASK
| CHAR_MASK
);
3443 switch (uc
& CSET_MASK
) {
3445 uc
= unitab_xterm
[uc
& 0xFF];
3448 uc
= unitab_line
[uc
& 0xFF];
3451 uc
= unitab_scoacs
[uc
&0xFF];
3454 switch (uc
& CSET_MASK
) {
3456 uc
= unitab_font
[uc
& 0xFF];
3459 uc
= unitab_oemcp
[uc
& 0xFF];
3463 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3464 * fail as there's such a thing as a double width space. :-(
3466 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3470 return term
->wordness
[uc
];
3472 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3473 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3481 * Spread the selection outwards according to the selection mode.
3483 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3485 unsigned long *ldata
;
3487 int topy
= -count234(term
->scrollback
);
3489 ldata
= lineptr(p
.y
);
3491 switch (term
->selmode
) {
3494 * In this mode, every character is a separate unit, except
3495 * for runs of spaces at the end of a non-wrapping line.
3497 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3498 unsigned long *q
= ldata
+ term
->cols
;
3499 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3501 if (q
== ldata
+ term
->cols
)
3503 if (p
.x
>= q
- ldata
)
3504 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3509 * In this mode, the units are maximal runs of characters
3510 * whose `wordness' has the same value.
3512 wvalue
= wordtype(term
, ldata
[p
.x
]);
3515 if (p
.x
< term
->cols
-1) {
3516 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3521 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3522 unsigned long *ldata2
;
3523 ldata2
= lineptr(p
.y
+1);
3524 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3537 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3542 unsigned long *ldata2
;
3545 ldata2
= lineptr(p
.y
-1);
3546 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3547 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3559 * In this mode, every line is a unit.
3561 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3567 static void sel_spread(Terminal
*term
)
3569 if (term
->seltype
== LEXICOGRAPHIC
) {
3570 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3571 decpos(term
->selend
);
3572 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3573 incpos(term
->selend
);
3577 void term_do_paste(Terminal
*term
)
3582 get_clip(term
->frontend
, &data
, &len
);
3583 if (data
&& len
> 0) {
3586 term_seen_key_event(term
); /* pasted data counts */
3588 if (term
->paste_buffer
)
3589 sfree(term
->paste_buffer
);
3590 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3591 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3594 while (p
< data
+ len
) {
3595 while (p
< data
+ len
&&
3596 !(p
<= data
+ len
- sel_nl_sz
&&
3597 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3602 for (i
= 0; i
< p
- q
; i
++) {
3603 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3607 if (p
<= data
+ len
- sel_nl_sz
&&
3608 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3609 term
->paste_buffer
[term
->paste_len
++] = '\015';
3615 /* Assume a small paste will be OK in one go. */
3616 if (term
->paste_len
< 256) {
3618 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3619 if (term
->paste_buffer
)
3620 sfree(term
->paste_buffer
);
3621 term
->paste_buffer
= 0;
3622 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3625 get_clip(term
->frontend
, NULL
, NULL
);
3628 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3629 int shift
, int ctrl
, int alt
)
3632 unsigned long *ldata
;
3633 int raw_mouse
= (term
->xterm_mouse
&&
3634 !term
->cfg
->no_mouse_rep
&&
3635 !(term
->cfg
->mouse_override
&& shift
));
3636 int default_seltype
;
3640 if (a
== MA_DRAG
&& !raw_mouse
)
3641 term_scroll(term
, 0, -1);
3643 if (y
>= term
->rows
) {
3645 if (a
== MA_DRAG
&& !raw_mouse
)
3646 term_scroll(term
, 0, +1);
3655 if (x
>= term
->cols
)
3658 selpoint
.y
= y
+ term
->disptop
;
3660 ldata
= lineptr(selpoint
.y
);
3661 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3665 int encstate
= 0, r
, c
;
3672 encstate
= 0x20; /* left button down */
3683 case MBT_WHEEL_DOWN
:
3686 default: break; /* placate gcc warning about enum use */
3690 if (term
->xterm_mouse
== 1)
3696 term
->mouse_is_down
= 0;
3699 if (term
->mouse_is_down
== b
)
3701 term
->mouse_is_down
= b
;
3703 default: break; /* placate gcc warning about enum use */
3712 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3713 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3718 b
= translate_button(term
->frontend
, b
);
3721 * Set the selection type (rectangular or normal) at the start
3722 * of a selection attempt, from the state of Alt.
3724 if (!alt
^ !term
->cfg
->rect_select
)
3725 default_seltype
= RECTANGULAR
;
3727 default_seltype
= LEXICOGRAPHIC
;
3729 if (term
->selstate
== NO_SELECTION
) {
3730 term
->seltype
= default_seltype
;
3733 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3735 term
->selstate
= ABOUT_TO
;
3736 term
->seltype
= default_seltype
;
3737 term
->selanchor
= selpoint
;
3738 term
->selmode
= SM_CHAR
;
3739 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3741 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3742 term
->selstate
= DRAGGING
;
3743 term
->selstart
= term
->selanchor
= selpoint
;
3744 term
->selend
= term
->selstart
;
3745 incpos(term
->selend
);
3747 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3748 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3749 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3751 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3752 if (term
->seltype
== LEXICOGRAPHIC
) {
3754 * For normal selection, we extend by moving
3755 * whichever end of the current selection is closer
3758 if (posdiff(selpoint
, term
->selstart
) <
3759 posdiff(term
->selend
, term
->selstart
) / 2) {
3760 term
->selanchor
= term
->selend
;
3761 decpos(term
->selanchor
);
3763 term
->selanchor
= term
->selstart
;
3767 * For rectangular selection, we have a choice of
3768 * _four_ places to put selanchor and selpoint: the
3769 * four corners of the selection.
3771 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3772 term
->selanchor
.x
= term
->selend
.x
-1;
3774 term
->selanchor
.x
= term
->selstart
.x
;
3776 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3777 term
->selanchor
.y
= term
->selend
.y
;
3779 term
->selanchor
.y
= term
->selstart
.y
;
3781 term
->selstate
= DRAGGING
;
3783 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3784 term
->selanchor
= selpoint
;
3785 term
->selstate
= DRAGGING
;
3786 if (term
->seltype
== LEXICOGRAPHIC
) {
3788 * For normal selection, we set (selstart,selend) to
3789 * (selpoint,selanchor) in some order.
3791 if (poslt(selpoint
, term
->selanchor
)) {
3792 term
->selstart
= selpoint
;
3793 term
->selend
= term
->selanchor
;
3794 incpos(term
->selend
);
3796 term
->selstart
= term
->selanchor
;
3797 term
->selend
= selpoint
;
3798 incpos(term
->selend
);
3802 * For rectangular selection, we may need to
3803 * interchange x and y coordinates (if the user has
3804 * dragged in the -x and +y directions, or vice versa).
3806 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3807 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3808 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3809 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3812 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3813 if (term
->selstate
== DRAGGING
) {
3815 * We've completed a selection. We now transfer the
3816 * data to the clipboard.
3818 clipme(term
, term
->selstart
, term
->selend
,
3819 (term
->seltype
== RECTANGULAR
));
3820 term
->selstate
= SELECTED
;
3822 term
->selstate
= NO_SELECTION
;
3823 } else if (b
== MBT_PASTE
3825 #if MULTICLICK_ONLY_EVENT
3826 || a
== MA_2CLK
|| a
== MA_3CLK
3829 request_paste(term
->frontend
);
3835 void term_nopaste(Terminal
*term
)
3837 if (term
->paste_len
== 0)
3839 sfree(term
->paste_buffer
);
3840 term
->paste_buffer
= NULL
;
3841 term
->paste_len
= 0;
3844 int term_paste_pending(Terminal
*term
)
3846 return term
->paste_len
!= 0;
3849 void term_paste(Terminal
*term
)
3851 long now
, paste_diff
;
3853 if (term
->paste_len
== 0)
3856 /* Don't wait forever to paste */
3857 if (term
->paste_hold
) {
3858 now
= GETTICKCOUNT();
3859 paste_diff
= now
- term
->last_paste
;
3860 if (paste_diff
>= 0 && paste_diff
< 450)
3863 term
->paste_hold
= 0;
3865 while (term
->paste_pos
< term
->paste_len
) {
3867 while (n
+ term
->paste_pos
< term
->paste_len
) {
3868 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3872 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3873 term
->paste_pos
+= n
;
3875 if (term
->paste_pos
< term
->paste_len
) {
3876 term
->paste_hold
= 1;
3880 sfree(term
->paste_buffer
);
3881 term
->paste_buffer
= NULL
;
3882 term
->paste_len
= 0;
3885 static void deselect(Terminal
*term
)
3887 term
->selstate
= NO_SELECTION
;
3888 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3891 void term_deselect(Terminal
*term
)
3897 int term_ldisc(Terminal
*term
, int option
)
3899 if (option
== LD_ECHO
)
3900 return term
->term_echoing
;
3901 if (option
== LD_EDIT
)
3902 return term
->term_editing
;
3907 * from_backend(), to get data from the backend for the terminal.
3909 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3911 Terminal
*term
= (Terminal
*)vterm
;
3915 bufchain_add(&term
->inbuf
, data
, len
);
3918 * term_out() always completely empties inbuf. Therefore,
3919 * there's no reason at all to return anything other than zero
3920 * from this function, because there _can't_ be a question of
3921 * the remote side needing to wait until term_out() has cleared
3924 * This is a slightly suboptimal way to deal with SSH2 - in
3925 * principle, the window mechanism would allow us to continue
3926 * to accept data on forwarded ports and X connections even
3927 * while the terminal processing was going slowly - but we
3928 * can't do the 100% right thing without moving the terminal
3929 * processing into a separate thread, and that might hurt
3930 * portability. So we manage stdout buffering the old SSH1 way:
3931 * if the terminal processing goes slowly, the whole SSH
3932 * connection stops accepting data until it's ready.
3934 * In practice, I can't imagine this causing serious trouble.
3939 void term_provide_logctx(Terminal
*term
, void *logctx
)
3941 term
->logctx
= logctx
;