9ad33d615128251303247e4f338f7f87714c5585
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 * Fetch the character at a particular position in a line array,
64 * for purposes of `wordtype'. The reason this isn't just a simple
65 * array reference is that if the character we find is UCSWIDE,
66 * then we must look one space further to the left.
68 #define UCSGET(a, x) \
69 ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
70 (a)[(x)-1] : (a)[(x)] )
73 * Internal prototypes.
75 static unsigned long *resizeline(unsigned long *, int);
76 static unsigned long *lineptr(Terminal
*, int, int);
77 static void do_paint(Terminal
*, Context
, int);
78 static void erase_lots(Terminal
*, int, int, int);
79 static void swap_screen(Terminal
*, int, int, int);
80 static void update_sbar(Terminal
*);
81 static void deselect(Terminal
*);
82 static void term_print_finish(Terminal
*);
83 #ifdef OPTIMISE_SCROLL
84 static void scroll_display(Terminal
*, int, int, int);
85 #endif /* OPTIMISE_SCROLL */
88 * Resize a line to make it `cols' columns wide.
90 static unsigned long *resizeline(unsigned long *line
, int cols
)
93 unsigned long lineattrs
;
95 if (line
[0] != (unsigned long)cols
) {
97 * This line is the wrong length, which probably means it
98 * hasn't been accessed since a resize. Resize it now.
101 lineattrs
= line
[oldlen
+ 1];
102 line
= srealloc(line
, TSIZE
* (2 + cols
));
104 for (i
= oldlen
; i
< cols
; i
++)
105 line
[i
+ 1] = ERASE_CHAR
;
106 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
113 * Retrieve a line of the screen or of the scrollback, according to
114 * whether the y coordinate is non-negative or negative
117 static unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
119 unsigned long *line
, *newline
;
124 whichtree
= term
->screen
;
127 whichtree
= term
->scrollback
;
128 treeindex
= y
+ count234(term
->scrollback
);
130 line
= index234(whichtree
, treeindex
);
132 /* We assume that we don't screw up and retrieve something out of range. */
133 assert(line
!= NULL
);
135 newline
= resizeline(line
, term
->cols
);
136 if (newline
!= line
) {
137 delpos234(whichtree
, treeindex
);
138 addpos234(whichtree
, newline
, treeindex
);
145 #define lineptr(x) lineptr(term,x,__LINE__)
148 * Set up power-on settings for the terminal.
150 static void power_on(Terminal
*term
)
152 term
->curs
.x
= term
->curs
.y
= 0;
153 term
->alt_x
= term
->alt_y
= 0;
154 term
->savecurs
.x
= term
->savecurs
.y
= 0;
155 term
->alt_t
= term
->marg_t
= 0;
156 if (term
->rows
!= -1)
157 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
159 term
->alt_b
= term
->marg_b
= 0;
160 if (term
->cols
!= -1) {
162 for (i
= 0; i
< term
->cols
; i
++)
163 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
165 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
166 term
->alt_ins
= term
->insert
= FALSE
;
167 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
168 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
169 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
170 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
172 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
173 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
175 term
->in_vbell
= FALSE
;
177 term
->big_cursor
= 0;
178 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
179 term
->term_editing
= term
->term_echoing
= FALSE
;
180 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
181 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
182 term
->use_bce
= term
->cfg
.bce
;
183 term
->blink_is_real
= term
->cfg
.blinktext
;
184 term
->erase_char
= ERASE_CHAR
;
186 term_print_finish(term
);
189 for (i
= 0; i
< 256; i
++)
190 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
193 swap_screen(term
, 1, FALSE
, FALSE
);
194 erase_lots(term
, FALSE
, TRUE
, TRUE
);
195 swap_screen(term
, 0, FALSE
, FALSE
);
196 erase_lots(term
, FALSE
, TRUE
, TRUE
);
201 * Force a screen update.
203 void term_update(Terminal
*term
)
206 ctx
= get_ctx(term
->frontend
);
208 int need_sbar_update
= term
->seen_disp_event
;
209 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
210 term
->disptop
= 0; /* return to main screen */
211 term
->seen_disp_event
= 0;
212 need_sbar_update
= TRUE
;
214 if (need_sbar_update
)
216 do_paint(term
, ctx
, TRUE
);
217 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
223 * Called from front end when a keypress occurs, to trigger
224 * anything magical that needs to happen in that situation.
226 void term_seen_key_event(Terminal
*term
)
229 * On any keypress, clear the bell overload mechanism
230 * completely, on the grounds that large numbers of
231 * beeps coming from deliberate key action are likely
232 * to be intended (e.g. beeps from filename completion
233 * blocking repeatedly).
235 term
->beep_overloaded
= FALSE
;
236 while (term
->beephead
) {
237 struct beeptime
*tmp
= term
->beephead
;
238 term
->beephead
= tmp
->next
;
241 term
->beeptail
= NULL
;
245 * Reset the scrollback on keypress, if we're doing that.
247 if (term
->cfg
.scroll_on_key
) {
248 term
->disptop
= 0; /* return to main screen */
249 term
->seen_disp_event
= 1;
254 * Same as power_on(), but an external function.
256 void term_pwron(Terminal
*term
)
259 if (term
->ldisc
) /* cause ldisc to notice changes */
260 ldisc_send(term
->ldisc
, NULL
, 0, 0);
268 * When the user reconfigures us, we need to check the forbidden-
269 * alternate-screen config option, disable raw mouse mode if the
270 * user has disabled mouse reporting, and abandon a print job if
271 * the user has disabled printing.
273 void term_reconfig(Terminal
*term
, Config
*cfg
)
276 * Before adopting the new config, check all those terminal
277 * settings which control power-on defaults; and if they've
278 * changed, we will modify the current state as well as the
279 * default one. The full list is: Auto wrap mode, DEC Origin
280 * Mode, BCE, blinking text, character classes.
282 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
285 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
286 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
287 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
288 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
290 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
291 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
294 term
->cfg
= *cfg
; /* STRUCTURE COPY */
297 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
299 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
301 term
->use_bce
= term
->cfg
.bce
;
303 term
->blink_is_real
= term
->cfg
.blinktext
;
305 for (i
= 0; i
< 256; i
++)
306 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
308 if (term
->cfg
.no_alt_screen
)
309 swap_screen(term
, 0, FALSE
, FALSE
);
310 if (term
->cfg
.no_mouse_rep
) {
311 term
->xterm_mouse
= 0;
312 set_raw_mouse_mode(term
->frontend
, 0);
314 if (term
->cfg
.no_remote_charset
) {
315 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
316 term
->sco_acs
= term
->alt_sco_acs
= 0;
319 if (!*term
->cfg
.printer
) {
320 term_print_finish(term
);
325 * Clear the scrollback.
327 void term_clrsb(Terminal
*term
)
331 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
338 * Initialise the terminal.
340 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
346 * Allocate a new Terminal structure and initialise the fields
349 term
= smalloc(sizeof(Terminal
));
350 term
->frontend
= frontend
;
351 term
->ucsdata
= ucsdata
;
352 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
354 term
->compatibility_level
= TM_PUTTY
;
355 strcpy(term
->id_string
, "\033[?6c");
356 term
->last_blink
= term
->last_tblink
= 0;
357 term
->paste_buffer
= NULL
;
359 term
->last_paste
= 0;
360 bufchain_init(&term
->inbuf
);
361 bufchain_init(&term
->printer_buf
);
362 term
->printing
= term
->only_printing
= FALSE
;
363 term
->print_job
= NULL
;
364 term
->vt52_mode
= FALSE
;
365 term
->cr_lf_return
= FALSE
;
366 term
->seen_disp_event
= FALSE
;
367 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
368 term
->reset_132
= FALSE
;
369 term
->blinker
= term
->tblinker
= 0;
371 term
->repeat_off
= FALSE
;
372 term
->termstate
= TOPLEVEL
;
373 term
->selstate
= NO_SELECTION
;
376 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
378 term
->disptext
= term
->dispcurs
= NULL
;
381 term
->rows
= term
->cols
= -1;
383 term
->beephead
= term
->beeptail
= NULL
;
385 term
->lastbeep
= FALSE
;
386 term
->beep_overloaded
= FALSE
;
387 term
->attr_mask
= 0xffffffff;
388 term
->resize_fn
= NULL
;
389 term
->resize_ctx
= NULL
;
395 * Set up the terminal for a given size.
397 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
400 unsigned long *newdisp
, *line
;
403 int save_alt_which
= term
->alt_which
;
405 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
406 newsavelines
== term
->savelines
)
407 return; /* nothing to do */
410 swap_screen(term
, 0, FALSE
, FALSE
);
412 term
->alt_t
= term
->marg_t
= 0;
413 term
->alt_b
= term
->marg_b
= newrows
- 1;
415 if (term
->rows
== -1) {
416 term
->scrollback
= newtree234(NULL
);
417 term
->screen
= newtree234(NULL
);
422 * Resize the screen and scrollback. We only need to shift
423 * lines around within our data structures, because lineptr()
424 * will take care of resizing each individual line if
427 * - If the new screen and the old screen differ in length, we
428 * must shunt some lines in from the scrollback or out to
431 * - If doing that fails to provide us with enough material to
432 * fill the new screen (i.e. the number of rows needed in
433 * the new screen exceeds the total number in the previous
434 * screen+scrollback), we must invent some blank lines to
437 * - Then, if the new scrollback length is less than the
438 * amount of scrollback we actually have, we must throw some
441 sblen
= count234(term
->scrollback
);
442 /* Do this loop to expand the screen if newrows > rows */
443 for (i
= term
->rows
; i
< newrows
; i
++) {
445 line
= delpos234(term
->scrollback
, --sblen
);
447 line
= smalloc(TSIZE
* (newcols
+ 2));
449 for (j
= 0; j
<= newcols
; j
++)
450 line
[j
+ 1] = ERASE_CHAR
;
452 addpos234(term
->screen
, line
, 0);
454 /* Do this loop to shrink the screen if newrows < rows */
455 for (i
= newrows
; i
< term
->rows
; i
++) {
456 line
= delpos234(term
->screen
, 0);
457 addpos234(term
->scrollback
, line
, sblen
++);
459 assert(count234(term
->screen
) == newrows
);
460 while (sblen
> newsavelines
) {
461 line
= delpos234(term
->scrollback
, 0);
465 assert(count234(term
->scrollback
) <= newsavelines
);
468 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
469 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
470 newdisp
[i
] = ATTR_INVALID
;
471 sfree(term
->disptext
);
472 term
->disptext
= newdisp
;
473 term
->dispcurs
= NULL
;
475 newalt
= newtree234(NULL
);
476 for (i
= 0; i
< newrows
; i
++) {
477 line
= smalloc(TSIZE
* (newcols
+ 2));
479 for (j
= 0; j
<= newcols
; j
++)
480 line
[j
+ 1] = term
->erase_char
;
481 addpos234(newalt
, line
, i
);
483 if (term
->alt_screen
) {
484 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
486 freetree234(term
->alt_screen
);
488 term
->alt_screen
= newalt
;
490 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
493 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
494 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
498 term
->curs
.y
+= newrows
- term
->rows
;
499 if (term
->curs
.y
< 0)
501 if (term
->curs
.y
>= newrows
)
502 term
->curs
.y
= newrows
- 1;
503 if (term
->curs
.x
>= newcols
)
504 term
->curs
.x
= newcols
- 1;
505 term
->alt_x
= term
->alt_y
= 0;
506 term
->wrapnext
= term
->alt_wnext
= FALSE
;
508 term
->rows
= newrows
;
509 term
->cols
= newcols
;
510 term
->savelines
= newsavelines
;
513 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
518 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
522 * Hand a function and context pointer to the terminal which it can
523 * use to notify a back end of resizes.
525 void term_provide_resize_fn(Terminal
*term
,
526 void (*resize_fn
)(void *, int, int),
529 term
->resize_fn
= resize_fn
;
530 term
->resize_ctx
= resize_ctx
;
531 if (term
->cols
> 0 && term
->rows
> 0)
532 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
536 * Swap screens. If `reset' is TRUE and we have been asked to
537 * switch to the alternate screen, we must bring most of its
538 * configuration from the main screen and erase the contents of the
539 * alternate screen completely. (This is even true if we're already
540 * on it! Blame xterm.)
542 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
548 reset
= FALSE
; /* do no weird resetting if which==0 */
550 if (which
!= term
->alt_which
) {
551 term
->alt_which
= which
;
553 ttr
= term
->alt_screen
;
554 term
->alt_screen
= term
->screen
;
557 if (!reset
&& !keep_cur_pos
)
558 term
->curs
.x
= term
->alt_x
;
561 if (!reset
&& !keep_cur_pos
)
562 term
->curs
.y
= term
->alt_y
;
565 if (!reset
) term
->marg_t
= term
->alt_t
;
568 if (!reset
) term
->marg_b
= term
->alt_b
;
571 if (!reset
) term
->dec_om
= term
->alt_om
;
574 if (!reset
) term
->wrap
= term
->alt_wrap
;
577 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
580 if (!reset
) term
->insert
= term
->alt_ins
;
583 if (!reset
) term
->cset
= term
->alt_cset
;
586 if (!reset
) term
->utf
= term
->alt_utf
;
589 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
590 term
->alt_sco_acs
= t
;
593 if (reset
&& term
->screen
) {
595 * Yes, this _is_ supposed to honour background-colour-erase.
597 erase_lots(term
, FALSE
, TRUE
, TRUE
);
601 * This might not be possible if we're called during
609 * Update the scroll bar.
611 static void update_sbar(Terminal
*term
)
615 nscroll
= count234(term
->scrollback
);
617 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
618 nscroll
+ term
->disptop
, term
->rows
);
622 * Check whether the region bounded by the two pointers intersects
623 * the scroll region, and de-select the on-screen selection if so.
625 static void check_selection(Terminal
*term
, pos from
, pos to
)
627 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
632 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
633 * for backward.) `sb' is TRUE if the scrolling is permitted to
634 * affect the scrollback buffer.
636 * NB this function invalidates all pointers into lines of the
637 * screen data structures. In particular, you MUST call fix_cpos
638 * after calling scroll() and before doing anything else that
639 * uses the cpos shortcut pointer.
641 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
643 unsigned long *line
, *line2
;
644 int i
, seltop
, olddisptop
, shift
;
646 if (topline
!= 0 || term
->alt_which
!= 0)
649 olddisptop
= term
->disptop
;
653 line
= delpos234(term
->screen
, botline
);
654 line
= resizeline(line
, term
->cols
);
655 for (i
= 0; i
< term
->cols
; i
++)
656 line
[i
+ 1] = term
->erase_char
;
657 line
[term
->cols
+ 1] = 0;
658 addpos234(term
->screen
, line
, topline
);
660 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
662 if (term
->selstart
.y
> botline
) {
663 term
->selstart
.y
= botline
;
664 term
->selstart
.x
= 0;
667 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
669 if (term
->selend
.y
> botline
) {
670 term
->selend
.y
= botline
;
679 line
= delpos234(term
->screen
, topline
);
680 if (sb
&& term
->savelines
> 0) {
681 int sblen
= count234(term
->scrollback
);
683 * We must add this line to the scrollback. We'll
684 * remove a line from the top of the scrollback to
685 * replace it, or allocate a new one if the
686 * scrollback isn't full.
688 if (sblen
== term
->savelines
) {
689 sblen
--, line2
= delpos234(term
->scrollback
, 0);
691 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
692 line2
[0] = term
->cols
;
694 addpos234(term
->scrollback
, line
, sblen
);
698 * If the user is currently looking at part of the
699 * scrollback, and they haven't enabled any options
700 * that are going to reset the scrollback as a
701 * result of this movement, then the chances are
702 * they'd like to keep looking at the same line. So
703 * we move their viewpoint at the same rate as the
704 * scroll, at least until their viewpoint hits the
705 * top end of the scrollback buffer, at which point
706 * we don't have the choice any more.
708 * Thanks to Jan Holmen Holsten for the idea and
709 * initial implementation.
711 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
714 line
= resizeline(line
, term
->cols
);
715 for (i
= 0; i
< term
->cols
; i
++)
716 line
[i
+ 1] = term
->erase_char
;
717 line
[term
->cols
+ 1] = 0;
718 addpos234(term
->screen
, line
, botline
);
721 * If the selection endpoints move into the scrollback,
722 * we keep them moving until they hit the top. However,
723 * of course, if the line _hasn't_ moved into the
724 * scrollback then we don't do this, and cut them off
725 * at the top of the scroll region.
727 * This applies to selstart and selend (for an existing
728 * selection), and also selanchor (for one being
729 * selected as we speak).
731 seltop
= sb ?
-term
->savelines
: topline
;
733 if (term
->selstart
.y
>= seltop
&&
734 term
->selstart
.y
<= botline
) {
736 if (term
->selstart
.y
< seltop
) {
737 term
->selstart
.y
= seltop
;
738 term
->selstart
.x
= 0;
741 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
743 if (term
->selend
.y
< seltop
) {
744 term
->selend
.y
= seltop
;
748 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
750 if (term
->selanchor
.y
< seltop
) {
751 term
->selanchor
.y
= seltop
;
752 term
->selanchor
.x
= 0;
759 #ifdef OPTIMISE_SCROLL
760 shift
+= term
->disptop
- olddisptop
;
761 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
762 scroll_display(term
, topline
, botline
, shift
);
763 #endif /* OPTIMISE_SCROLL */
766 #ifdef OPTIMISE_SCROLL
768 * Scroll the physical display, and our conception of it in disptext.
770 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
772 unsigned long *start
, *end
;
773 int distance
, size
, i
;
775 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
776 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
777 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
778 size
= end
- start
- distance
;
780 memmove(start
, start
+ distance
, size
* TSIZE
);
781 if (term
->dispcurs
>= start
+ distance
&&
782 term
->dispcurs
<= start
+ distance
+ size
)
783 term
->dispcurs
-= distance
;
784 for (i
= 0; i
< distance
; i
++)
785 (start
+ size
)[i
] |= ATTR_INVALID
;
787 memmove(start
+ distance
, start
, size
* TSIZE
);
788 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
789 term
->dispcurs
+= distance
;
790 for (i
= 0; i
< distance
; i
++)
791 start
[i
] |= ATTR_INVALID
;
793 do_scroll(term
->frontend
, topline
, botline
, lines
);
795 #endif /* OPTIMISE_SCROLL */
798 * Move the cursor to a given position, clipping at boundaries. We
799 * may or may not want to clip at the scroll margin: marg_clip is 0
800 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
801 * even _being_ outside the margins.
803 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
810 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
813 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
824 term
->wrapnext
= FALSE
;
828 * Save or restore the cursor and SGR mode.
830 static void save_cursor(Terminal
*term
, int save
)
833 term
->savecurs
= term
->curs
;
834 term
->save_attr
= term
->curr_attr
;
835 term
->save_cset
= term
->cset
;
836 term
->save_utf
= term
->utf
;
837 term
->save_wnext
= term
->wrapnext
;
838 term
->save_csattr
= term
->cset_attr
[term
->cset
];
839 term
->save_sco_acs
= term
->sco_acs
;
841 term
->curs
= term
->savecurs
;
842 /* Make sure the window hasn't shrunk since the save */
843 if (term
->curs
.x
>= term
->cols
)
844 term
->curs
.x
= term
->cols
- 1;
845 if (term
->curs
.y
>= term
->rows
)
846 term
->curs
.y
= term
->rows
- 1;
848 term
->curr_attr
= term
->save_attr
;
849 term
->cset
= term
->save_cset
;
850 term
->utf
= term
->save_utf
;
851 term
->wrapnext
= term
->save_wnext
;
853 * wrapnext might reset to False if the x position is no
854 * longer at the rightmost edge.
856 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
857 term
->wrapnext
= FALSE
;
858 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
859 term
->sco_acs
= term
->save_sco_acs
;
862 term
->erase_char
= (' ' | ATTR_ASCII
|
864 (ATTR_FGMASK
| ATTR_BGMASK
)));
869 * This function is called before doing _anything_ which affects
870 * only part of a line of text. It is used to mark the boundary
871 * between two character positions, and it indicates that some sort
872 * of effect is going to happen on only one side of that boundary.
874 * The effect of this function is to check whether a CJK
875 * double-width character is straddling the boundary, and to remove
876 * it and replace it with two spaces if so. (Of course, one or
877 * other of those spaces is then likely to be replaced with
878 * something else again, as a result of whatever happens next.)
880 * Also, if the boundary is at the right-hand _edge_ of the screen,
881 * it implies something deliberate is being done to the rightmost
882 * column position; hence we must clear LATTR_WRAPPED2.
884 * The input to the function is the coordinates of the _second_
885 * character of the pair.
887 static void check_boundary(Terminal
*term
, int x
, int y
)
889 unsigned long *ldata
;
891 /* Validate input coordinates, just in case. */
892 if (x
== 0 || x
> term
->cols
)
896 if (x
== term
->cols
) {
897 ldata
[x
] &= ~LATTR_WRAPPED2
;
899 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
900 ldata
[x
-1] = ldata
[x
] =
901 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
907 * Erase a large portion of the screen: the whole screen, or the
908 * whole line, or parts thereof.
910 static void erase_lots(Terminal
*term
,
911 int line_only
, int from_begin
, int to_end
)
915 unsigned long *ldata
;
918 start
.y
= term
->curs
.y
;
920 end
.y
= term
->curs
.y
+ 1;
937 if (!from_begin
|| !to_end
)
938 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
939 check_selection(term
, start
, end
);
941 /* Clear screen also forces a full window redraw, just in case. */
942 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
943 term_invalidate(term
);
945 ldata
= lineptr(start
.y
);
946 while (poslt(start
, end
)) {
947 if (start
.x
== term
->cols
&& !erase_lattr
)
948 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
950 ldata
[start
.x
] = term
->erase_char
;
951 if (incpos(start
) && start
.y
< term
->rows
)
952 ldata
= lineptr(start
.y
);
957 * Insert or delete characters within the current line. n is +ve if
958 * insertion is desired, and -ve for deletion.
960 static void insch(Terminal
*term
, int n
)
962 int dir
= (n
< 0 ?
-1 : +1);
965 unsigned long *ldata
;
967 n
= (n
< 0 ?
-n
: n
);
968 if (n
> term
->cols
- term
->curs
.x
)
969 n
= term
->cols
- term
->curs
.x
;
970 m
= term
->cols
- term
->curs
.x
- n
;
971 cursplus
.y
= term
->curs
.y
;
972 cursplus
.x
= term
->curs
.x
+ n
;
973 check_selection(term
, term
->curs
, cursplus
);
974 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
976 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
977 ldata
= lineptr(term
->curs
.y
);
979 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
981 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
983 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
985 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
990 * Toggle terminal mode `mode' to state `state'. (`query' indicates
991 * whether the mode is a DEC private one or a normal one.)
993 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
999 case 1: /* application cursor keys */
1000 term
->app_cursor_keys
= state
;
1002 case 2: /* VT52 mode */
1003 term
->vt52_mode
= !state
;
1004 if (term
->vt52_mode
) {
1005 term
->blink_is_real
= FALSE
;
1006 term
->vt52_bold
= FALSE
;
1008 term
->blink_is_real
= term
->cfg
.blinktext
;
1011 case 3: /* 80/132 columns */
1013 if (!term
->cfg
.no_remote_resize
)
1014 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1015 term
->reset_132
= state
;
1017 case 5: /* reverse video */
1019 * Toggle reverse video. If we receive an OFF within the
1020 * visual bell timeout period after an ON, we trigger an
1021 * effective visual bell, so that ESC[?5hESC[?5l will
1022 * always be an actually _visible_ visual bell.
1024 ticks
= GETTICKCOUNT();
1025 /* turn off a previous vbell to avoid inconsistencies */
1026 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1027 term
->in_vbell
= FALSE
;
1028 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1029 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1030 /* If there's no vbell timeout already, or this one lasts
1031 * longer, replace vbell_timeout with ours. */
1032 if (!term
->in_vbell
||
1033 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1035 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1036 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1037 } else if (!term
->rvideo
&& state
) {
1038 /* This is an ON, so we notice the time and save it. */
1039 term
->rvbell_startpoint
= ticks
;
1041 term
->rvideo
= state
;
1042 term
->seen_disp_event
= TRUE
;
1046 case 6: /* DEC origin mode */
1047 term
->dec_om
= state
;
1049 case 7: /* auto wrap */
1052 case 8: /* auto key repeat */
1053 term
->repeat_off
= !state
;
1055 case 10: /* set local edit mode */
1056 term
->term_editing
= state
;
1057 if (term
->ldisc
) /* cause ldisc to notice changes */
1058 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1060 case 25: /* enable/disable cursor */
1061 compatibility2(OTHER
, VT220
);
1062 term
->cursor_on
= state
;
1063 term
->seen_disp_event
= TRUE
;
1065 case 47: /* alternate screen */
1066 compatibility(OTHER
);
1068 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1071 case 1000: /* xterm mouse 1 */
1072 term
->xterm_mouse
= state ?
1 : 0;
1073 set_raw_mouse_mode(term
->frontend
, state
);
1075 case 1002: /* xterm mouse 2 */
1076 term
->xterm_mouse
= state ?
2 : 0;
1077 set_raw_mouse_mode(term
->frontend
, state
);
1079 case 1047: /* alternate screen */
1080 compatibility(OTHER
);
1082 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1085 case 1048: /* save/restore cursor */
1086 save_cursor(term
, state
);
1087 if (!state
) term
->seen_disp_event
= TRUE
;
1089 case 1049: /* cursor & alternate screen */
1091 save_cursor(term
, state
);
1092 if (!state
) term
->seen_disp_event
= TRUE
;
1093 compatibility(OTHER
);
1095 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1097 save_cursor(term
, state
);
1102 case 4: /* set insert mode */
1103 compatibility(VT102
);
1104 term
->insert
= state
;
1106 case 12: /* set echo mode */
1107 term
->term_echoing
= !state
;
1108 if (term
->ldisc
) /* cause ldisc to notice changes */
1109 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1111 case 20: /* Return sends ... */
1112 term
->cr_lf_return
= state
;
1114 case 34: /* Make cursor BIG */
1115 compatibility2(OTHER
, VT220
);
1116 term
->big_cursor
= !state
;
1121 * Process an OSC sequence: set window title or icon name.
1123 static void do_osc(Terminal
*term
)
1126 while (term
->osc_strlen
--)
1127 term
->wordness
[(unsigned char)
1128 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1130 term
->osc_string
[term
->osc_strlen
] = '\0';
1131 switch (term
->esc_args
[0]) {
1134 if (!term
->cfg
.no_remote_wintitle
)
1135 set_icon(term
->frontend
, term
->osc_string
);
1136 if (term
->esc_args
[0] == 1)
1138 /* fall through: parameter 0 means set both */
1141 if (!term
->cfg
.no_remote_wintitle
)
1142 set_title(term
->frontend
, term
->osc_string
);
1149 * ANSI printing routines.
1151 static void term_print_setup(Terminal
*term
)
1153 bufchain_clear(&term
->printer_buf
);
1154 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1156 static void term_print_flush(Terminal
*term
)
1161 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1162 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1165 printer_job_data(term
->print_job
, data
, len
);
1166 bufchain_consume(&term
->printer_buf
, len
);
1169 static void term_print_finish(Terminal
*term
)
1175 if (!term
->printing
&& !term
->only_printing
)
1176 return; /* we need do nothing */
1178 term_print_flush(term
);
1179 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1180 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1182 if (c
== '\033' || c
== '\233') {
1183 bufchain_consume(&term
->printer_buf
, size
);
1186 printer_job_data(term
->print_job
, &c
, 1);
1187 bufchain_consume(&term
->printer_buf
, 1);
1190 printer_finish_job(term
->print_job
);
1191 term
->print_job
= NULL
;
1192 term
->printing
= term
->only_printing
= FALSE
;
1196 * Remove everything currently in `inbuf' and stick it up on the
1197 * in-memory display. There's a big state machine in here to
1198 * process escape sequences...
1200 void term_out(Terminal
*term
)
1203 unsigned char localbuf
[256], *chars
;
1208 chars
= NULL
; /* placate compiler warnings */
1209 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1213 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1214 if (nchars
> sizeof(localbuf
))
1215 nchars
= sizeof(localbuf
);
1216 memcpy(localbuf
, ret
, nchars
);
1217 bufchain_consume(&term
->inbuf
, nchars
);
1219 assert(chars
!= NULL
);
1225 * Optionally log the session traffic to a file. Useful for
1226 * debugging and possibly also useful for actual logging.
1228 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1229 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1235 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1236 * be able to display 8-bit characters, but I'll let that go 'cause
1241 * If we're printing, add the character to the printer
1244 if (term
->printing
) {
1245 bufchain_add(&term
->printer_buf
, &c
, 1);
1248 * If we're in print-only mode, we use a much simpler
1249 * state machine designed only to recognise the ESC[4i
1250 * termination sequence.
1252 if (term
->only_printing
) {
1254 term
->print_state
= 1;
1255 else if (c
== (unsigned char)'\233')
1256 term
->print_state
= 2;
1257 else if (c
== '[' && term
->print_state
== 1)
1258 term
->print_state
= 2;
1259 else if (c
== '4' && term
->print_state
== 2)
1260 term
->print_state
= 3;
1261 else if (c
== 'i' && term
->print_state
== 3)
1262 term
->print_state
= 4;
1264 term
->print_state
= 0;
1265 if (term
->print_state
== 4) {
1266 term_print_finish(term
);
1272 /* First see about all those translations. */
1273 if (term
->termstate
== TOPLEVEL
) {
1275 switch (term
->utf_state
) {
1278 /* UTF-8 must be stateless so we ignore iso2022. */
1279 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1280 c
= term
->ucsdata
->unitab_ctrl
[c
];
1281 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1283 } else if ((c
& 0xe0) == 0xc0) {
1284 term
->utf_size
= term
->utf_state
= 1;
1285 term
->utf_char
= (c
& 0x1f);
1286 } else if ((c
& 0xf0) == 0xe0) {
1287 term
->utf_size
= term
->utf_state
= 2;
1288 term
->utf_char
= (c
& 0x0f);
1289 } else if ((c
& 0xf8) == 0xf0) {
1290 term
->utf_size
= term
->utf_state
= 3;
1291 term
->utf_char
= (c
& 0x07);
1292 } else if ((c
& 0xfc) == 0xf8) {
1293 term
->utf_size
= term
->utf_state
= 4;
1294 term
->utf_char
= (c
& 0x03);
1295 } else if ((c
& 0xfe) == 0xfc) {
1296 term
->utf_size
= term
->utf_state
= 5;
1297 term
->utf_char
= (c
& 0x01);
1308 if ((c
& 0xC0) != 0x80) {
1311 term
->utf_state
= 0;
1314 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1315 if (--term
->utf_state
)
1320 /* Is somebody trying to be evil! */
1322 (c
< 0x800 && term
->utf_size
>= 2) ||
1323 (c
< 0x10000 && term
->utf_size
>= 3) ||
1324 (c
< 0x200000 && term
->utf_size
>= 4) ||
1325 (c
< 0x4000000 && term
->utf_size
>= 5))
1328 /* Unicode line separator and paragraph separator are CR-LF */
1329 if (c
== 0x2028 || c
== 0x2029)
1332 /* High controls are probably a Baaad idea too. */
1336 /* The UTF-16 surrogates are not nice either. */
1337 /* The standard give the option of decoding these:
1338 * I don't want to! */
1339 if (c
>= 0xD800 && c
< 0xE000)
1342 /* ISO 10646 characters now limited to UTF-16 range. */
1346 /* This is currently a TagPhobic application.. */
1347 if (c
>= 0xE0000 && c
<= 0xE007F)
1350 /* U+FEFF is best seen as a null. */
1353 /* But U+FFFE is an error. */
1354 if (c
== 0xFFFE || c
== 0xFFFF)
1357 /* Oops this is a 16bit implementation */
1362 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1363 else if(term
->sco_acs
&&
1364 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1366 if (term
->sco_acs
== 2) c
|= 0x80;
1369 switch (term
->cset_attr
[term
->cset
]) {
1371 * Linedraw characters are different from 'ESC ( B'
1372 * only for a small range. For ones outside that
1373 * range, make sure we use the same font as well as
1374 * the same encoding.
1377 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1378 c
= term
->ucsdata
->unitab_ctrl
[c
];
1380 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1384 /* If UK-ASCII, make the '#' a LineDraw Pound */
1386 c
= '}' | ATTR_LINEDRW
;
1389 /*FALLTHROUGH*/ case ATTR_ASCII
:
1390 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1391 c
= term
->ucsdata
->unitab_ctrl
[c
];
1393 c
= ((unsigned char) c
) | ATTR_ASCII
;
1396 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1402 /* How about C1 controls ? */
1403 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1404 !term
->vt52_mode
&& has_compat(VT220
)) {
1405 term
->termstate
= SEEN_ESC
;
1406 term
->esc_query
= FALSE
;
1407 c
= '@' + (c
& 0x1F);
1410 /* Or the GL control. */
1411 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1412 if (term
->curs
.x
&& !term
->wrapnext
)
1414 term
->wrapnext
= FALSE
;
1416 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1417 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1419 /* Or normal C0 controls. */
1420 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1422 case '\005': /* terminal type query */
1423 /* Strictly speaking this is VT100 but a VT100 defaults to
1424 * no response. Other terminals respond at their option.
1426 * Don't put a CR in the default string as this tends to
1427 * upset some weird software.
1429 * An xterm returns "xterm" (5 characters)
1431 compatibility(ANSIMIN
);
1433 char abuf
[256], *s
, *d
;
1435 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1437 if (*s
>= 'a' && *s
<= 'z')
1438 *d
++ = (*s
- ('a' - 1));
1439 else if ((*s
>= '@' && *s
<= '_') ||
1440 *s
== '?' || (*s
& 0x80))
1445 } else if (*s
== '^') {
1450 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1456 struct beeptime
*newbeep
;
1457 unsigned long ticks
;
1459 ticks
= GETTICKCOUNT();
1461 if (!term
->beep_overloaded
) {
1462 newbeep
= smalloc(sizeof(struct beeptime
));
1463 newbeep
->ticks
= ticks
;
1464 newbeep
->next
= NULL
;
1465 if (!term
->beephead
)
1466 term
->beephead
= newbeep
;
1468 term
->beeptail
->next
= newbeep
;
1469 term
->beeptail
= newbeep
;
1474 * Throw out any beeps that happened more than
1477 while (term
->beephead
&&
1478 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1479 struct beeptime
*tmp
= term
->beephead
;
1480 term
->beephead
= tmp
->next
;
1482 if (!term
->beephead
)
1483 term
->beeptail
= NULL
;
1487 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1488 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1490 * If we're currently overloaded and the
1491 * last beep was more than s seconds ago,
1492 * leave overload mode.
1494 term
->beep_overloaded
= FALSE
;
1495 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1496 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1498 * Now, if we have n or more beeps
1499 * remaining in the queue, go into overload
1502 term
->beep_overloaded
= TRUE
;
1504 term
->lastbeep
= ticks
;
1507 * Perform an actual beep if we're not overloaded.
1509 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1510 beep(term
->frontend
, term
->cfg
.beep
);
1511 if (term
->cfg
.beep
== BELL_VISUAL
) {
1512 term
->in_vbell
= TRUE
;
1513 term
->vbell_startpoint
= ticks
;
1521 if (term
->curs
.x
== 0 &&
1522 (term
->curs
.y
== 0 || term
->wrap
== 0))
1524 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1525 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1526 else if (term
->wrapnext
)
1527 term
->wrapnext
= FALSE
;
1531 term
->seen_disp_event
= TRUE
;
1534 compatibility(VT100
);
1538 compatibility(VT100
);
1542 if (term
->vt52_mode
)
1543 term
->termstate
= VT52_ESC
;
1545 compatibility(ANSIMIN
);
1546 term
->termstate
= SEEN_ESC
;
1547 term
->esc_query
= FALSE
;
1552 term
->wrapnext
= FALSE
;
1554 term
->seen_disp_event
= TRUE
;
1555 term
->paste_hold
= 0;
1557 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1560 if (has_compat(SCOANSI
)) {
1561 move(term
, 0, 0, 0);
1562 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1564 term
->wrapnext
= FALSE
;
1565 term
->seen_disp_event
= 1;
1569 compatibility(VT100
);
1571 if (term
->curs
.y
== term
->marg_b
)
1572 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1573 else if (term
->curs
.y
< term
->rows
- 1)
1575 if (term
->cfg
.lfhascr
)
1578 term
->wrapnext
= FALSE
;
1579 term
->seen_disp_event
= 1;
1580 term
->paste_hold
= 0;
1582 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1586 pos old_curs
= term
->curs
;
1587 unsigned long *ldata
= lineptr(term
->curs
.y
);
1591 } while (term
->curs
.x
< term
->cols
- 1 &&
1592 !term
->tabs
[term
->curs
.x
]);
1594 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1595 if (term
->curs
.x
>= term
->cols
/ 2)
1596 term
->curs
.x
= term
->cols
/ 2 - 1;
1598 if (term
->curs
.x
>= term
->cols
)
1599 term
->curs
.x
= term
->cols
- 1;
1603 check_selection(term
, old_curs
, term
->curs
);
1605 term
->seen_disp_event
= TRUE
;
1609 switch (term
->termstate
) {
1611 /* Only graphic characters get this far;
1612 * ctrls are stripped above */
1613 if (term
->wrapnext
&& term
->wrap
) {
1614 term
->cpos
[1] |= LATTR_WRAPPED
;
1615 if (term
->curs
.y
== term
->marg_b
)
1616 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1617 else if (term
->curs
.y
< term
->rows
- 1)
1621 term
->wrapnext
= FALSE
;
1625 if (term
->selstate
!= NO_SELECTION
) {
1626 pos cursplus
= term
->curs
;
1628 check_selection(term
, term
->curs
, cursplus
);
1630 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1632 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1638 width
= wcwidth((wchar_t) c
);
1642 * If we're about to display a double-width
1643 * character starting in the rightmost
1644 * column, then we do something special
1645 * instead. We must print a space in the
1646 * last column of the screen, then wrap;
1647 * and we also set LATTR_WRAPPED2 which
1648 * instructs subsequent cut-and-pasting not
1649 * only to splice this line to the one
1650 * after it, but to ignore the space in the
1651 * last character position as well.
1652 * (Because what was actually output to the
1653 * terminal was presumably just a sequence
1654 * of CJK characters, and we don't want a
1655 * space to be pasted in the middle of
1656 * those just because they had the
1657 * misfortune to start in the wrong parity
1658 * column. xterm concurs.)
1660 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1661 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1662 if (term
->curs
.x
== term
->cols
-1) {
1663 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1664 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1665 if (term
->curs
.y
== term
->marg_b
)
1666 scroll(term
, term
->marg_t
, term
->marg_b
,
1668 else if (term
->curs
.y
< term
->rows
- 1)
1672 /* Now we must check_boundary again, of course. */
1673 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1674 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1676 *term
->cpos
++ = c
| term
->curr_attr
;
1677 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1681 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1682 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1683 *term
->cpos
++ = c
| term
->curr_attr
;
1690 if (term
->curs
.x
== term
->cols
) {
1693 term
->wrapnext
= TRUE
;
1694 if (term
->wrap
&& term
->vt52_mode
) {
1695 term
->cpos
[1] |= LATTR_WRAPPED
;
1696 if (term
->curs
.y
== term
->marg_b
)
1697 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1698 else if (term
->curs
.y
< term
->rows
- 1)
1702 term
->wrapnext
= FALSE
;
1705 term
->seen_disp_event
= 1;
1710 * This state is virtually identical to SEEN_ESC, with the
1711 * exception that we have an OSC sequence in the pipeline,
1712 * and _if_ we see a backslash, we process it.
1716 term
->termstate
= TOPLEVEL
;
1719 /* else fall through */
1721 if (c
>= ' ' && c
<= '/') {
1722 if (term
->esc_query
)
1723 term
->esc_query
= -1;
1725 term
->esc_query
= c
;
1728 term
->termstate
= TOPLEVEL
;
1729 switch (ANSI(c
, term
->esc_query
)) {
1730 case '[': /* enter CSI mode */
1731 term
->termstate
= SEEN_CSI
;
1732 term
->esc_nargs
= 1;
1733 term
->esc_args
[0] = ARG_DEFAULT
;
1734 term
->esc_query
= FALSE
;
1736 case ']': /* xterm escape sequences */
1737 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1738 compatibility(OTHER
);
1739 term
->termstate
= SEEN_OSC
;
1740 term
->esc_args
[0] = 0;
1742 case '7': /* save cursor */
1743 compatibility(VT100
);
1744 save_cursor(term
, TRUE
);
1746 case '8': /* restore cursor */
1747 compatibility(VT100
);
1748 save_cursor(term
, FALSE
);
1749 term
->seen_disp_event
= TRUE
;
1752 compatibility(VT100
);
1753 term
->app_keypad_keys
= TRUE
;
1756 compatibility(VT100
);
1757 term
->app_keypad_keys
= FALSE
;
1759 case 'D': /* exactly equivalent to LF */
1760 compatibility(VT100
);
1761 if (term
->curs
.y
== term
->marg_b
)
1762 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1763 else if (term
->curs
.y
< term
->rows
- 1)
1766 term
->wrapnext
= FALSE
;
1767 term
->seen_disp_event
= TRUE
;
1769 case 'E': /* exactly equivalent to CR-LF */
1770 compatibility(VT100
);
1772 if (term
->curs
.y
== term
->marg_b
)
1773 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1774 else if (term
->curs
.y
< term
->rows
- 1)
1777 term
->wrapnext
= FALSE
;
1778 term
->seen_disp_event
= TRUE
;
1780 case 'M': /* reverse index - backwards LF */
1781 compatibility(VT100
);
1782 if (term
->curs
.y
== term
->marg_t
)
1783 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1784 else if (term
->curs
.y
> 0)
1787 term
->wrapnext
= FALSE
;
1788 term
->seen_disp_event
= TRUE
;
1790 case 'Z': /* terminal type query */
1791 compatibility(VT100
);
1793 ldisc_send(term
->ldisc
, term
->id_string
,
1794 strlen(term
->id_string
), 0);
1796 case 'c': /* restore power-on settings */
1797 compatibility(VT100
);
1799 if (term
->ldisc
) /* cause ldisc to notice changes */
1800 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1801 if (term
->reset_132
) {
1802 if (!term
->cfg
.no_remote_resize
)
1803 request_resize(term
->frontend
, 80, term
->rows
);
1804 term
->reset_132
= 0;
1808 term
->seen_disp_event
= TRUE
;
1810 case 'H': /* set a tab */
1811 compatibility(VT100
);
1812 term
->tabs
[term
->curs
.x
] = TRUE
;
1815 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1816 compatibility(VT100
);
1818 unsigned long *ldata
;
1822 for (i
= 0; i
< term
->rows
; i
++) {
1824 for (j
= 0; j
< term
->cols
; j
++)
1825 ldata
[j
] = ATTR_DEFAULT
| 'E';
1826 ldata
[term
->cols
] = 0;
1829 term
->seen_disp_event
= TRUE
;
1830 scrtop
.x
= scrtop
.y
= 0;
1832 scrbot
.y
= term
->rows
;
1833 check_selection(term
, scrtop
, scrbot
);
1837 case ANSI('3', '#'):
1838 case ANSI('4', '#'):
1839 case ANSI('5', '#'):
1840 case ANSI('6', '#'):
1841 compatibility(VT100
);
1843 unsigned long nlattr
;
1844 unsigned long *ldata
;
1845 switch (ANSI(c
, term
->esc_query
)) {
1846 case ANSI('3', '#'):
1849 case ANSI('4', '#'):
1852 case ANSI('5', '#'):
1853 nlattr
= LATTR_NORM
;
1855 default: /* spiritually case ANSI('6', '#'): */
1856 nlattr
= LATTR_WIDE
;
1859 ldata
= lineptr(term
->curs
.y
);
1860 ldata
[term
->cols
] &= ~LATTR_MODE
;
1861 ldata
[term
->cols
] |= nlattr
;
1865 case ANSI('A', '('):
1866 compatibility(VT100
);
1867 if (!term
->cfg
.no_remote_charset
)
1868 term
->cset_attr
[0] = ATTR_GBCHR
;
1870 case ANSI('B', '('):
1871 compatibility(VT100
);
1872 if (!term
->cfg
.no_remote_charset
)
1873 term
->cset_attr
[0] = ATTR_ASCII
;
1875 case ANSI('0', '('):
1876 compatibility(VT100
);
1877 if (!term
->cfg
.no_remote_charset
)
1878 term
->cset_attr
[0] = ATTR_LINEDRW
;
1880 case ANSI('U', '('):
1881 compatibility(OTHER
);
1882 if (!term
->cfg
.no_remote_charset
)
1883 term
->cset_attr
[0] = ATTR_SCOACS
;
1886 case ANSI('A', ')'):
1887 compatibility(VT100
);
1888 if (!term
->cfg
.no_remote_charset
)
1889 term
->cset_attr
[1] = ATTR_GBCHR
;
1891 case ANSI('B', ')'):
1892 compatibility(VT100
);
1893 if (!term
->cfg
.no_remote_charset
)
1894 term
->cset_attr
[1] = ATTR_ASCII
;
1896 case ANSI('0', ')'):
1897 compatibility(VT100
);
1898 if (!term
->cfg
.no_remote_charset
)
1899 term
->cset_attr
[1] = ATTR_LINEDRW
;
1901 case ANSI('U', ')'):
1902 compatibility(OTHER
);
1903 if (!term
->cfg
.no_remote_charset
)
1904 term
->cset_attr
[1] = ATTR_SCOACS
;
1907 case ANSI('8', '%'): /* Old Linux code */
1908 case ANSI('G', '%'):
1909 compatibility(OTHER
);
1910 if (!term
->cfg
.no_remote_charset
)
1913 case ANSI('@', '%'):
1914 compatibility(OTHER
);
1915 if (!term
->cfg
.no_remote_charset
)
1921 term
->termstate
= TOPLEVEL
; /* default */
1923 if (term
->esc_nargs
<= ARGS_MAX
) {
1924 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1925 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1926 term
->esc_args
[term
->esc_nargs
- 1] =
1927 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1929 term
->termstate
= SEEN_CSI
;
1930 } else if (c
== ';') {
1931 if (++term
->esc_nargs
<= ARGS_MAX
)
1932 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1933 term
->termstate
= SEEN_CSI
;
1934 } else if (c
< '@') {
1935 if (term
->esc_query
)
1936 term
->esc_query
= -1;
1938 term
->esc_query
= TRUE
;
1940 term
->esc_query
= c
;
1941 term
->termstate
= SEEN_CSI
;
1943 switch (ANSI(c
, term
->esc_query
)) {
1944 case 'A': /* move up N lines */
1945 move(term
, term
->curs
.x
,
1946 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1947 term
->seen_disp_event
= TRUE
;
1949 case 'e': /* move down N lines */
1950 compatibility(ANSI
);
1953 move(term
, term
->curs
.x
,
1954 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1955 term
->seen_disp_event
= TRUE
;
1957 case ANSI('c', '>'): /* report xterm version */
1958 compatibility(OTHER
);
1959 /* this reports xterm version 136 so that VIM can
1960 use the drag messages from the mouse reporting */
1962 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1964 case 'a': /* move right N cols */
1965 compatibility(ANSI
);
1968 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1970 term
->seen_disp_event
= TRUE
;
1972 case 'D': /* move left N cols */
1973 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1975 term
->seen_disp_event
= TRUE
;
1977 case 'E': /* move down N lines and CR */
1978 compatibility(ANSI
);
1980 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1981 term
->seen_disp_event
= TRUE
;
1983 case 'F': /* move up N lines and CR */
1984 compatibility(ANSI
);
1986 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1987 term
->seen_disp_event
= TRUE
;
1990 case '`': /* set horizontal posn */
1991 compatibility(ANSI
);
1992 move(term
, def(term
->esc_args
[0], 1) - 1,
1994 term
->seen_disp_event
= TRUE
;
1996 case 'd': /* set vertical posn */
1997 compatibility(ANSI
);
1998 move(term
, term
->curs
.x
,
1999 ((term
->dec_om ? term
->marg_t
: 0) +
2000 def(term
->esc_args
[0], 1) - 1),
2001 (term
->dec_om ?
2 : 0));
2002 term
->seen_disp_event
= TRUE
;
2005 case 'f': /* set horz and vert posns at once */
2006 if (term
->esc_nargs
< 2)
2007 term
->esc_args
[1] = ARG_DEFAULT
;
2008 move(term
, def(term
->esc_args
[1], 1) - 1,
2009 ((term
->dec_om ? term
->marg_t
: 0) +
2010 def(term
->esc_args
[0], 1) - 1),
2011 (term
->dec_om ?
2 : 0));
2012 term
->seen_disp_event
= TRUE
;
2014 case 'J': /* erase screen or parts of it */
2016 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2019 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2022 term
->seen_disp_event
= TRUE
;
2024 case 'K': /* erase line or parts of it */
2026 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2029 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2031 term
->seen_disp_event
= TRUE
;
2033 case 'L': /* insert lines */
2034 compatibility(VT102
);
2035 if (term
->curs
.y
<= term
->marg_b
)
2036 scroll(term
, term
->curs
.y
, term
->marg_b
,
2037 -def(term
->esc_args
[0], 1), FALSE
);
2039 term
->seen_disp_event
= TRUE
;
2041 case 'M': /* delete lines */
2042 compatibility(VT102
);
2043 if (term
->curs
.y
<= term
->marg_b
)
2044 scroll(term
, term
->curs
.y
, term
->marg_b
,
2045 def(term
->esc_args
[0], 1),
2048 term
->seen_disp_event
= TRUE
;
2050 case '@': /* insert chars */
2051 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2052 compatibility(VT102
);
2053 insch(term
, def(term
->esc_args
[0], 1));
2054 term
->seen_disp_event
= TRUE
;
2056 case 'P': /* delete chars */
2057 compatibility(VT102
);
2058 insch(term
, -def(term
->esc_args
[0], 1));
2059 term
->seen_disp_event
= TRUE
;
2061 case 'c': /* terminal type query */
2062 compatibility(VT100
);
2063 /* This is the response for a VT102 */
2065 ldisc_send(term
->ldisc
, term
->id_string
,
2066 strlen(term
->id_string
), 0);
2068 case 'n': /* cursor position query */
2070 if (term
->esc_args
[0] == 6) {
2072 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2074 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2075 } else if (term
->esc_args
[0] == 5) {
2076 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2080 case 'h': /* toggle modes to high */
2082 compatibility(VT100
);
2085 for (i
= 0; i
< term
->esc_nargs
; i
++)
2086 toggle_mode(term
, term
->esc_args
[i
],
2087 term
->esc_query
, TRUE
);
2092 compatibility(VT100
);
2094 if (term
->esc_nargs
!= 1) break;
2095 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2096 term
->printing
= TRUE
;
2097 term
->only_printing
= !term
->esc_query
;
2098 term
->print_state
= 0;
2099 term_print_setup(term
);
2100 } else if (term
->esc_args
[0] == 4 &&
2102 term_print_finish(term
);
2106 case 'l': /* toggle modes to low */
2108 compatibility(VT100
);
2111 for (i
= 0; i
< term
->esc_nargs
; i
++)
2112 toggle_mode(term
, term
->esc_args
[i
],
2113 term
->esc_query
, FALSE
);
2116 case 'g': /* clear tabs */
2117 compatibility(VT100
);
2118 if (term
->esc_nargs
== 1) {
2119 if (term
->esc_args
[0] == 0) {
2120 term
->tabs
[term
->curs
.x
] = FALSE
;
2121 } else if (term
->esc_args
[0] == 3) {
2123 for (i
= 0; i
< term
->cols
; i
++)
2124 term
->tabs
[i
] = FALSE
;
2128 case 'r': /* set scroll margins */
2129 compatibility(VT100
);
2130 if (term
->esc_nargs
<= 2) {
2132 top
= def(term
->esc_args
[0], 1) - 1;
2133 bot
= (term
->esc_nargs
<= 1
2134 || term
->esc_args
[1] == 0 ?
2136 def(term
->esc_args
[1], term
->rows
)) - 1;
2137 if (bot
>= term
->rows
)
2138 bot
= term
->rows
- 1;
2139 /* VTTEST Bug 9 - if region is less than 2 lines
2140 * don't change region.
2142 if (bot
- top
> 0) {
2147 * I used to think the cursor should be
2148 * placed at the top of the newly marginned
2149 * area. Apparently not: VMS TPU falls over
2152 * Well actually it should for
2155 term
->curs
.y
= (term
->dec_om ?
2158 term
->seen_disp_event
= TRUE
;
2162 case 'm': /* set graphics rendition */
2165 * A VT100 without the AVO only had one
2166 * attribute, either underline or
2167 * reverse video depending on the
2168 * cursor type, this was selected by
2172 * This is sometimes DIM, eg on the
2175 * This is sometimes INVIS various ANSI.
2177 * This like 22 disables BOLD, DIM and INVIS
2179 * The ANSI colours appear on any
2180 * terminal that has colour (obviously)
2181 * but the interaction between sgr0 and
2182 * the colours varies but is usually
2183 * related to the background colour
2184 * erase item. The interaction between
2185 * colour attributes and the mono ones
2186 * is also very implementation
2189 * The 39 and 49 attributes are likely
2190 * to be unimplemented.
2193 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2194 switch (def(term
->esc_args
[i
], 0)) {
2195 case 0: /* restore defaults */
2196 term
->curr_attr
= ATTR_DEFAULT
;
2198 case 1: /* enable bold */
2199 compatibility(VT100AVO
);
2200 term
->curr_attr
|= ATTR_BOLD
;
2202 case 21: /* (enable double underline) */
2203 compatibility(OTHER
);
2204 case 4: /* enable underline */
2205 compatibility(VT100AVO
);
2206 term
->curr_attr
|= ATTR_UNDER
;
2208 case 5: /* enable blink */
2209 compatibility(VT100AVO
);
2210 term
->curr_attr
|= ATTR_BLINK
;
2212 case 7: /* enable reverse video */
2213 term
->curr_attr
|= ATTR_REVERSE
;
2215 case 10: /* SCO acs off */
2216 compatibility(SCOANSI
);
2217 if (term
->cfg
.no_remote_charset
) break;
2218 term
->sco_acs
= 0; break;
2219 case 11: /* SCO acs on */
2220 compatibility(SCOANSI
);
2221 if (term
->cfg
.no_remote_charset
) break;
2222 term
->sco_acs
= 1; break;
2223 case 12: /* SCO acs on, |0x80 */
2224 compatibility(SCOANSI
);
2225 if (term
->cfg
.no_remote_charset
) break;
2226 term
->sco_acs
= 2; break;
2227 case 22: /* disable bold */
2228 compatibility2(OTHER
, VT220
);
2229 term
->curr_attr
&= ~ATTR_BOLD
;
2231 case 24: /* disable underline */
2232 compatibility2(OTHER
, VT220
);
2233 term
->curr_attr
&= ~ATTR_UNDER
;
2235 case 25: /* disable blink */
2236 compatibility2(OTHER
, VT220
);
2237 term
->curr_attr
&= ~ATTR_BLINK
;
2239 case 27: /* disable reverse video */
2240 compatibility2(OTHER
, VT220
);
2241 term
->curr_attr
&= ~ATTR_REVERSE
;
2252 term
->curr_attr
&= ~ATTR_FGMASK
;
2254 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2256 case 39: /* default-foreground */
2257 term
->curr_attr
&= ~ATTR_FGMASK
;
2258 term
->curr_attr
|= ATTR_DEFFG
;
2269 term
->curr_attr
&= ~ATTR_BGMASK
;
2271 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2273 case 49: /* default-background */
2274 term
->curr_attr
&= ~ATTR_BGMASK
;
2275 term
->curr_attr
|= ATTR_DEFBG
;
2280 term
->erase_char
= (' ' | ATTR_ASCII
|
2286 case 's': /* save cursor */
2287 save_cursor(term
, TRUE
);
2289 case 'u': /* restore cursor */
2290 save_cursor(term
, FALSE
);
2291 term
->seen_disp_event
= TRUE
;
2293 case 't': /* set page size - ie window height */
2295 * VT340/VT420 sequence DECSLPP, DEC only allows values
2296 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2297 * illegal values (eg first arg 1..9) for window changing
2300 if (term
->esc_nargs
<= 1
2301 && (term
->esc_args
[0] < 1 ||
2302 term
->esc_args
[0] >= 24)) {
2303 compatibility(VT340TEXT
);
2304 if (!term
->cfg
.no_remote_resize
)
2305 request_resize(term
->frontend
, term
->cols
,
2306 def(term
->esc_args
[0], 24));
2308 } else if (term
->esc_nargs
>= 1 &&
2309 term
->esc_args
[0] >= 1 &&
2310 term
->esc_args
[0] < 24) {
2311 compatibility(OTHER
);
2313 switch (term
->esc_args
[0]) {
2317 set_iconic(term
->frontend
, FALSE
);
2320 set_iconic(term
->frontend
, TRUE
);
2323 if (term
->esc_nargs
>= 3) {
2324 if (!term
->cfg
.no_remote_resize
)
2325 move_window(term
->frontend
,
2326 def(term
->esc_args
[1], 0),
2327 def(term
->esc_args
[2], 0));
2331 /* We should resize the window to a given
2332 * size in pixels here, but currently our
2333 * resizing code isn't healthy enough to
2338 set_zorder(term
->frontend
, TRUE
);
2341 /* move to bottom */
2342 set_zorder(term
->frontend
, FALSE
);
2345 refresh_window(term
->frontend
);
2348 if (term
->esc_nargs
>= 3) {
2349 if (!term
->cfg
.no_remote_resize
)
2350 request_resize(term
->frontend
,
2351 def(term
->esc_args
[2], term
->cfg
.width
),
2352 def(term
->esc_args
[1], term
->cfg
.height
));
2356 if (term
->esc_nargs
>= 2)
2357 set_zoomed(term
->frontend
,
2363 ldisc_send(term
->ldisc
,
2364 is_iconic(term
->frontend
) ?
2365 "\033[1t" : "\033[2t", 4, 0);
2369 get_window_pos(term
->frontend
, &x
, &y
);
2370 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2371 ldisc_send(term
->ldisc
, buf
, len
, 0);
2376 get_window_pixels(term
->frontend
, &x
, &y
);
2377 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2378 ldisc_send(term
->ldisc
, buf
, len
, 0);
2383 len
= sprintf(buf
, "\033[8;%d;%dt",
2384 term
->rows
, term
->cols
);
2385 ldisc_send(term
->ldisc
, buf
, len
, 0);
2390 * Hmmm. Strictly speaking we
2391 * should return `the size of the
2392 * screen in characters', but
2393 * that's not easy: (a) window
2394 * furniture being what it is it's
2395 * hard to compute, and (b) in
2396 * resize-font mode maximising the
2397 * window wouldn't change the
2398 * number of characters. *shrug*. I
2399 * think we'll ignore it for the
2400 * moment and see if anyone
2401 * complains, and then ask them
2402 * what they would like it to do.
2407 p
= get_window_title(term
->frontend
, TRUE
);
2409 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2410 ldisc_send(term
->ldisc
, p
, len
, 0);
2411 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2416 p
= get_window_title(term
->frontend
,FALSE
);
2418 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2419 ldisc_send(term
->ldisc
, p
, len
, 0);
2420 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2427 compatibility(SCOANSI
);
2428 scroll(term
, term
->marg_t
, term
->marg_b
,
2429 def(term
->esc_args
[0], 1), TRUE
);
2431 term
->wrapnext
= FALSE
;
2432 term
->seen_disp_event
= TRUE
;
2435 compatibility(SCOANSI
);
2436 scroll(term
, term
->marg_t
, term
->marg_b
,
2437 -def(term
->esc_args
[0], 1), TRUE
);
2439 term
->wrapnext
= FALSE
;
2440 term
->seen_disp_event
= TRUE
;
2442 case ANSI('|', '*'):
2443 /* VT420 sequence DECSNLS
2444 * Set number of lines on screen
2445 * VT420 uses VGA like hardware and can support any size in
2446 * reasonable range (24..49 AIUI) with no default specified.
2448 compatibility(VT420
);
2449 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2450 if (!term
->cfg
.no_remote_resize
)
2451 request_resize(term
->frontend
, term
->cols
,
2452 def(term
->esc_args
[0],
2457 case ANSI('|', '$'):
2458 /* VT340/VT420 sequence DECSCPP
2459 * Set number of columns per page
2460 * Docs imply range is only 80 or 132, but I'll allow any.
2462 compatibility(VT340TEXT
);
2463 if (term
->esc_nargs
<= 1) {
2464 if (!term
->cfg
.no_remote_resize
)
2465 request_resize(term
->frontend
,
2466 def(term
->esc_args
[0],
2467 term
->cfg
.width
), term
->rows
);
2471 case 'X': /* write N spaces w/o moving cursor */
2472 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2473 compatibility(ANSIMIN
);
2475 int n
= def(term
->esc_args
[0], 1);
2477 unsigned long *p
= term
->cpos
;
2478 if (n
> term
->cols
- term
->curs
.x
)
2479 n
= term
->cols
- term
->curs
.x
;
2480 cursplus
= term
->curs
;
2482 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2483 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2484 check_selection(term
, term
->curs
, cursplus
);
2486 *p
++ = term
->erase_char
;
2487 term
->seen_disp_event
= TRUE
;
2490 case 'x': /* report terminal characteristics */
2491 compatibility(VT100
);
2494 int i
= def(term
->esc_args
[0], 0);
2495 if (i
== 0 || i
== 1) {
2496 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2498 ldisc_send(term
->ldisc
, buf
, 20, 0);
2502 case 'Z': /* BackTab for xterm */
2503 compatibility(OTHER
);
2505 int i
= def(term
->esc_args
[0], 1);
2506 pos old_curs
= term
->curs
;
2508 for(;i
>0 && term
->curs
.x
>0; i
--) {
2511 } while (term
->curs
.x
>0 &&
2512 !term
->tabs
[term
->curs
.x
]);
2515 check_selection(term
, old_curs
, term
->curs
);
2518 case ANSI('L', '='):
2519 compatibility(OTHER
);
2520 term
->use_bce
= (term
->esc_args
[0] <= 0);
2521 term
->erase_char
= ERASE_CHAR
;
2523 term
->erase_char
= (' ' | ATTR_ASCII
|
2525 (ATTR_FGMASK
| ATTR_BGMASK
)));
2527 case ANSI('E', '='):
2528 compatibility(OTHER
);
2529 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2531 case ANSI('p', '"'):
2533 * Allow the host to make this emulator a
2534 * 'perfect' VT102. This first appeared in
2535 * the VT220, but we do need to get back to
2536 * PuTTY mode so I won't check it.
2538 * The arg in 40..42,50 are a PuTTY extension.
2539 * The 2nd arg, 8bit vs 7bit is not checked.
2541 * Setting VT102 mode should also change
2542 * the Fkeys to generate PF* codes as a
2543 * real VT102 has no Fkeys. The VT220 does
2544 * this, F11..F13 become ESC,BS,LF other
2545 * Fkeys send nothing.
2547 * Note ESC c will NOT change this!
2550 switch (term
->esc_args
[0]) {
2552 term
->compatibility_level
&= ~TM_VTXXX
;
2553 term
->compatibility_level
|= TM_VT102
;
2556 term
->compatibility_level
&= ~TM_VTXXX
;
2557 term
->compatibility_level
|= TM_VT220
;
2561 if (term
->esc_args
[0] > 60 &&
2562 term
->esc_args
[0] < 70)
2563 term
->compatibility_level
|= TM_VTXXX
;
2567 term
->compatibility_level
&= TM_VTXXX
;
2570 term
->compatibility_level
= TM_PUTTY
;
2573 term
->compatibility_level
= TM_SCOANSI
;
2577 term
->compatibility_level
= TM_PUTTY
;
2583 /* Change the response to CSI c */
2584 if (term
->esc_args
[0] == 50) {
2587 strcpy(term
->id_string
, "\033[?");
2588 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2590 strcat(term
->id_string
, ";");
2591 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2592 strcat(term
->id_string
, lbuf
);
2594 strcat(term
->id_string
, "c");
2597 /* Is this a good idea ?
2598 * Well we should do a soft reset at this point ...
2600 if (!has_compat(VT420
) && has_compat(VT100
)) {
2601 if (!term
->cfg
.no_remote_resize
) {
2602 if (term
->reset_132
)
2603 request_resize(132, 24);
2605 request_resize(80, 24);
2613 term
->osc_w
= FALSE
;
2615 case 'P': /* Linux palette sequence */
2616 term
->termstate
= SEEN_OSC_P
;
2617 term
->osc_strlen
= 0;
2619 case 'R': /* Linux palette reset */
2620 palette_reset(term
->frontend
);
2621 term_invalidate(term
);
2622 term
->termstate
= TOPLEVEL
;
2624 case 'W': /* word-set */
2625 term
->termstate
= SEEN_OSC_W
;
2638 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2642 * Grotty hack to support xterm and DECterm title
2643 * sequences concurrently.
2645 if (term
->esc_args
[0] == 2) {
2646 term
->esc_args
[0] = 1;
2649 /* else fall through */
2651 term
->termstate
= OSC_STRING
;
2652 term
->osc_strlen
= 0;
2657 * This OSC stuff is EVIL. It takes just one character to get into
2658 * sysline mode and it's not initially obvious how to get out.
2659 * So I've added CR and LF as string aborts.
2660 * This shouldn't effect compatibility as I believe embedded
2661 * control characters are supposed to be interpreted (maybe?)
2662 * and they don't display anything useful anyway.
2666 if (c
== '\012' || c
== '\015') {
2667 term
->termstate
= TOPLEVEL
;
2668 } else if (c
== 0234 || c
== '\007') {
2670 * These characters terminate the string; ST and BEL
2671 * terminate the sequence and trigger instant
2672 * processing of it, whereas ESC goes back to SEEN_ESC
2673 * mode unless it is followed by \, in which case it is
2674 * synonymous with ST in the first place.
2677 term
->termstate
= TOPLEVEL
;
2678 } else if (c
== '\033')
2679 term
->termstate
= OSC_MAYBE_ST
;
2680 else if (term
->osc_strlen
< OSC_STR_MAX
)
2681 term
->osc_string
[term
->osc_strlen
++] = c
;
2685 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2687 if (c
>= '0' && c
<= '9')
2689 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2691 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2694 term
->termstate
= TOPLEVEL
;
2697 term
->osc_string
[term
->osc_strlen
++] = val
;
2698 if (term
->osc_strlen
>= 7) {
2699 palette_set(term
->frontend
, term
->osc_string
[0],
2700 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2701 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2702 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2703 term_invalidate(term
);
2704 term
->termstate
= TOPLEVEL
;
2720 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2723 term
->termstate
= OSC_STRING
;
2724 term
->osc_strlen
= 0;
2728 term
->termstate
= TOPLEVEL
;
2729 term
->seen_disp_event
= TRUE
;
2732 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2735 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2738 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2741 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2744 * From the VT100 Manual
2745 * NOTE: The special graphics characters in the VT100
2746 * are different from those in the VT52
2748 * From VT102 manual:
2749 * 137 _ Blank - Same
2750 * 140 ` Reserved - Humm.
2751 * 141 a Solid rectangle - Similar
2752 * 142 b 1/ - Top half of fraction for the
2753 * 143 c 3/ - subscript numbers below.
2756 * 146 f Degrees - Same
2757 * 147 g Plus or minus - Same
2759 * 151 i Ellipsis (dots)
2762 * 154 l Bar at scan 0
2763 * 155 m Bar at scan 1
2764 * 156 n Bar at scan 2
2765 * 157 o Bar at scan 3 - Similar
2766 * 160 p Bar at scan 4 - Similar
2767 * 161 q Bar at scan 5 - Similar
2768 * 162 r Bar at scan 6 - Same
2769 * 163 s Bar at scan 7 - Similar
2784 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2787 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2790 move(term
, 0, 0, 0);
2793 if (term
->curs
.y
== 0)
2794 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2795 else if (term
->curs
.y
> 0)
2798 term
->wrapnext
= FALSE
;
2801 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2805 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2809 /* XXX Print cursor line */
2812 /* XXX Start controller mode */
2815 /* XXX Stop controller mode */
2819 term
->termstate
= VT52_Y1
;
2823 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2826 term
->app_keypad_keys
= TRUE
;
2829 term
->app_keypad_keys
= FALSE
;
2832 /* XXX This should switch to VT100 mode not current or default
2833 * VT mode. But this will only have effect in a VT220+
2836 term
->vt52_mode
= FALSE
;
2837 term
->blink_is_real
= term
->cfg
.blinktext
;
2841 /* XXX Enter auto print mode */
2844 /* XXX Exit auto print mode */
2847 /* XXX Print screen */
2853 /* compatibility(ATARI) */
2854 move(term
, 0, 0, 0);
2855 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2859 /* compatibility(ATARI) */
2860 if (term
->curs
.y
<= term
->marg_b
)
2861 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2864 /* compatibility(ATARI) */
2865 if (term
->curs
.y
<= term
->marg_b
)
2866 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2869 /* compatibility(ATARI) */
2870 term
->termstate
= VT52_FG
;
2873 /* compatibility(ATARI) */
2874 term
->termstate
= VT52_BG
;
2877 /* compatibility(ATARI) */
2878 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2882 /* compatibility(ATARI) */
2883 term
->cursor_on
= TRUE
;
2886 /* compatibility(ATARI) */
2887 term
->cursor_on
= FALSE
;
2889 /* case 'j': Save cursor position - broken on ST */
2890 /* case 'k': Restore cursor position */
2892 /* compatibility(ATARI) */
2893 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2895 term
->wrapnext
= FALSE
;
2899 /* compatibility(ATARI) */
2900 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2903 /* compatibility(ATARI) */
2904 term
->curr_attr
|= ATTR_REVERSE
;
2907 /* compatibility(ATARI) */
2908 term
->curr_attr
&= ~ATTR_REVERSE
;
2910 case 'v': /* wrap Autowrap on - Wyse style */
2911 /* compatibility(ATARI) */
2914 case 'w': /* Autowrap off */
2915 /* compatibility(ATARI) */
2920 /* compatibility(OTHER) */
2921 term
->vt52_bold
= FALSE
;
2922 term
->curr_attr
= ATTR_DEFAULT
;
2924 term
->erase_char
= (' ' | ATTR_ASCII
|
2926 (ATTR_FGMASK
| ATTR_BGMASK
)));
2929 /* compatibility(VI50) */
2930 term
->curr_attr
|= ATTR_UNDER
;
2933 /* compatibility(VI50) */
2934 term
->curr_attr
&= ~ATTR_UNDER
;
2937 /* compatibility(VI50) */
2938 term
->vt52_bold
= TRUE
;
2939 term
->curr_attr
|= ATTR_BOLD
;
2942 /* compatibility(VI50) */
2943 term
->vt52_bold
= FALSE
;
2944 term
->curr_attr
&= ~ATTR_BOLD
;
2950 term
->termstate
= VT52_Y2
;
2951 move(term
, term
->curs
.x
, c
- ' ', 0);
2954 term
->termstate
= TOPLEVEL
;
2955 move(term
, c
- ' ', term
->curs
.y
, 0);
2960 term
->termstate
= TOPLEVEL
;
2961 term
->curr_attr
&= ~ATTR_FGMASK
;
2962 term
->curr_attr
&= ~ATTR_BOLD
;
2963 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2964 if ((c
& 0x8) || term
->vt52_bold
)
2965 term
->curr_attr
|= ATTR_BOLD
;
2968 term
->erase_char
= (' ' | ATTR_ASCII
|
2970 (ATTR_FGMASK
| ATTR_BGMASK
)));
2973 term
->termstate
= TOPLEVEL
;
2974 term
->curr_attr
&= ~ATTR_BGMASK
;
2975 term
->curr_attr
&= ~ATTR_BLINK
;
2976 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2978 /* Note: bold background */
2980 term
->curr_attr
|= ATTR_BLINK
;
2983 term
->erase_char
= (' ' | ATTR_ASCII
|
2985 (ATTR_FGMASK
| ATTR_BGMASK
)));
2988 default: break; /* placate gcc warning about enum use */
2990 if (term
->selstate
!= NO_SELECTION
) {
2991 pos cursplus
= term
->curs
;
2993 check_selection(term
, term
->curs
, cursplus
);
2997 term_print_flush(term
);
3002 * Compare two lines to determine whether they are sufficiently
3003 * alike to scroll-optimise one to the other. Return the degree of
3006 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3010 for (i
= n
= 0; i
< term
->cols
; i
++)
3011 n
+= (*a
++ == *b
++);
3017 * Given a context, update the window. Out of paranoia, we don't
3018 * allow WM_PAINT responses to do scrolling optimisations.
3020 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3022 int i
, j
, our_curs_y
, our_curs_x
;
3023 unsigned long rv
, cursor
;
3026 long cursor_background
= ERASE_CHAR
;
3027 unsigned long ticks
;
3030 * Check the visual bell state.
3032 if (term
->in_vbell
) {
3033 ticks
= GETTICKCOUNT();
3034 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3035 term
->in_vbell
= FALSE
;
3038 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3041 * screen array, disptop, scrtop,
3043 * cfg.blinkpc, blink_is_real, tblinker,
3044 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3047 /* Has the cursor position or type changed ? */
3048 if (term
->cursor_on
) {
3049 if (term
->has_focus
) {
3050 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3051 cursor
= TATTR_ACTCURS
;
3055 cursor
= TATTR_PASCURS
;
3057 cursor
|= TATTR_RIGHTCURS
;
3060 our_curs_y
= term
->curs
.y
- term
->disptop
;
3063 * Adjust the cursor position in the case where it's
3064 * resting on the right-hand half of a CJK wide character.
3065 * xterm's behaviour here, which seems adequate to me, is
3066 * to display the cursor covering the _whole_ character,
3067 * exactly as if it were one space to the left.
3069 unsigned long *ldata
= lineptr(term
->curs
.y
);
3070 our_curs_x
= term
->curs
.x
;
3071 if (our_curs_x
> 0 &&
3072 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3076 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3078 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3080 if (term
->dispcurs
> term
->disptext
&&
3081 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3082 term
->dispcurs
[-1] |= ATTR_INVALID
;
3083 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3084 term
->dispcurs
[1] |= ATTR_INVALID
;
3085 *term
->dispcurs
|= ATTR_INVALID
;
3088 term
->dispcurs
= NULL
;
3090 /* The normal screen data */
3091 for (i
= 0; i
< term
->rows
; i
++) {
3092 unsigned long *ldata
;
3094 int idx
, dirty_line
, dirty_run
, selected
;
3095 unsigned long attr
= 0;
3096 int updated_line
= 0;
3099 int last_run_dirty
= 0;
3101 scrpos
.y
= i
+ term
->disptop
;
3102 ldata
= lineptr(scrpos
.y
);
3103 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3105 idx
= i
* (term
->cols
+ 1);
3106 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3107 term
->disptext
[idx
+ term
->cols
]);
3108 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3110 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3111 unsigned long tattr
, tchar
;
3112 unsigned long *d
= ldata
+ j
;
3116 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3117 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3118 switch (tchar
& CSET_MASK
) {
3120 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3123 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3126 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3129 tattr
|= (tchar
& CSET_MASK
);
3131 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3134 /* Video reversing things */
3135 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3136 if (term
->seltype
== LEXICOGRAPHIC
)
3137 selected
= (posle(term
->selstart
, scrpos
) &&
3138 poslt(scrpos
, term
->selend
));
3140 selected
= (posPle(term
->selstart
, scrpos
) &&
3141 posPlt(scrpos
, term
->selend
));
3145 ^ (selected ? ATTR_REVERSE
: 0));
3147 /* 'Real' blinking ? */
3148 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3149 if (term
->has_focus
&& term
->tblinker
) {
3151 tattr
&= ~CSET_MASK
;
3154 tattr
&= ~ATTR_BLINK
;
3158 * Check the font we'll _probably_ be using to see if
3159 * the character is wide when we don't want it to be.
3161 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3162 if ((tattr
& ATTR_WIDE
) == 0 &&
3163 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3164 tattr
|= ATTR_NARROW
;
3165 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3166 tattr
|= ATTR_NARROW
;
3168 /* Cursor here ? Save the 'background' */
3169 if (i
== our_curs_y
&& j
== our_curs_x
) {
3170 cursor_background
= tattr
| tchar
;
3171 term
->dispcurs
= term
->disptext
+ idx
;
3174 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3177 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3178 j
- start
>= sizeof(ch
));
3180 /* Special hack for VT100 Linedraw glyphs */
3181 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3182 && tchar
<= 0xBD) break_run
= TRUE
;
3184 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3185 if ((tchar
| tattr
) == term
->disptext
[idx
])
3187 else if (!dirty_run
&& ccount
== 1)
3192 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3193 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3199 if (term
->ucsdata
->dbcs_screenfont
)
3200 last_run_dirty
= dirty_run
;
3201 dirty_run
= dirty_line
;
3204 if ((tchar
| tattr
) != term
->disptext
[idx
])
3206 ch
[ccount
++] = (char) tchar
;
3207 term
->disptext
[idx
] = tchar
| tattr
;
3209 /* If it's a wide char step along to the next one. */
3210 if (tattr
& ATTR_WIDE
) {
3211 if (++j
< term
->cols
) {
3215 * By construction above, the cursor should not
3216 * be on the right-hand half of this character.
3219 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3220 if (term
->disptext
[idx
] != *d
)
3222 term
->disptext
[idx
] = *d
;
3226 if (dirty_run
&& ccount
> 0) {
3227 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3231 /* Cursor on this line ? (and changed) */
3232 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3233 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3234 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3235 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3236 term
->curstype
= cursor
;
3242 * Flick the switch that says if blinking things should be shown or hidden.
3245 void term_blink(Terminal
*term
, int flg
)
3247 long now
, blink_diff
;
3249 now
= GETTICKCOUNT();
3250 blink_diff
= now
- term
->last_tblink
;
3252 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3253 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3254 term
->last_tblink
= now
;
3255 term
->tblinker
= !term
->tblinker
;
3260 term
->last_blink
= now
;
3264 blink_diff
= now
- term
->last_blink
;
3266 /* Make sure the cursor blinks no faster than system blink rate */
3267 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3270 term
->last_blink
= now
;
3271 term
->blinker
= !term
->blinker
;
3275 * Invalidate the whole screen so it will be repainted in full.
3277 void term_invalidate(Terminal
*term
)
3281 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3282 term
->disptext
[i
] = ATTR_INVALID
;
3286 * Paint the window in response to a WM_PAINT message.
3288 void term_paint(Terminal
*term
, Context ctx
,
3289 int left
, int top
, int right
, int bottom
, int immediately
)
3292 if (left
< 0) left
= 0;
3293 if (top
< 0) top
= 0;
3294 if (right
>= term
->cols
) right
= term
->cols
-1;
3295 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3297 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3298 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3299 LATTR_MODE
) == LATTR_NORM
)
3300 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3301 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3303 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3304 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3307 /* This should happen soon enough, also for some reason it sometimes
3308 * fails to actually do anything when re-sizing ... painting the wrong
3312 do_paint (term
, ctx
, FALSE
);
3316 * Attempt to scroll the scrollback. The second parameter gives the
3317 * position we want to scroll to; the first is +1 to denote that
3318 * this position is relative to the beginning of the scrollback, -1
3319 * to denote it is relative to the end, and 0 to denote that it is
3320 * relative to the current position.
3322 void term_scroll(Terminal
*term
, int rel
, int where
)
3324 int sbtop
= -count234(term
->scrollback
);
3325 #ifdef OPTIMISE_SCROLL
3326 int olddisptop
= term
->disptop
;
3328 #endif /* OPTIMISE_SCROLL */
3330 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3331 if (term
->disptop
< sbtop
)
3332 term
->disptop
= sbtop
;
3333 if (term
->disptop
> 0)
3336 #ifdef OPTIMISE_SCROLL
3337 shift
= (term
->disptop
- olddisptop
);
3338 if (shift
< term
->rows
&& shift
> -term
->rows
)
3339 scroll_display(term
, 0, term
->rows
- 1, shift
);
3340 #endif /* OPTIMISE_SCROLL */
3344 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3347 wchar_t *wbptr
; /* where next char goes within workbuf */
3349 int wblen
= 0; /* workbuf len */
3350 int buflen
; /* amount of memory allocated to workbuf */
3352 buflen
= 5120; /* Default size */
3353 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3354 wbptr
= workbuf
; /* start filling here */
3355 old_top_x
= top
.x
; /* needed for rect==1 */
3357 while (poslt(top
, bottom
)) {
3359 unsigned long *ldata
= lineptr(top
.y
);
3363 * nlpos will point at the maximum position on this line we
3364 * should copy up to. So we start it at the end of the
3368 nlpos
.x
= term
->cols
;
3371 * ... move it backwards if there's unused space at the end
3372 * of the line (and also set `nl' if this is the case,
3373 * because in normal selection mode this means we need a
3374 * newline at the end)...
3376 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3377 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3378 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3379 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3380 && poslt(top
, nlpos
))
3382 if (poslt(nlpos
, bottom
))
3384 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3385 /* Ignore the last char on the line in a WRAPPED2 line. */
3390 * ... and then clip it to the terminal x coordinate if
3391 * we're doing rectangular selection. (In this case we
3392 * still did the above, so that copying e.g. the right-hand
3393 * column from a table doesn't fill with spaces on the
3397 if (nlpos
.x
> bottom
.x
)
3399 nl
= (top
.y
< bottom
.y
);
3402 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3405 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3407 wchar_t cbuf
[16], *p
;
3408 int uc
= (ldata
[top
.x
] & 0xFFFF);
3411 if (uc
== UCSWIDE
) {
3416 switch (uc
& CSET_MASK
) {
3418 if (!term
->cfg
.rawcnp
) {
3419 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3423 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3426 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3429 switch (uc
& CSET_MASK
) {
3431 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3434 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3438 set
= (uc
& CSET_MASK
);
3439 c
= (uc
& CHAR_MASK
);
3443 if (DIRECT_FONT(uc
)) {
3444 if (c
>= ' ' && c
!= 0x7F) {
3448 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3450 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3451 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3455 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3459 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3466 for (p
= cbuf
; *p
; p
++) {
3467 /* Enough overhead for trailing NL and nul */
3468 if (wblen
>= buflen
- 16) {
3471 sizeof(wchar_t) * (buflen
+= 100));
3472 wbptr
= workbuf
+ wblen
;
3481 for (i
= 0; i
< sel_nl_sz
; i
++) {
3483 *wbptr
++ = sel_nl
[i
];
3487 top
.x
= rect ? old_top_x
: 0;
3489 #if SELECTION_NUL_TERMINATED
3493 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3494 if (buflen
> 0) /* indicates we allocated this buffer */
3498 void term_copyall(Terminal
*term
)
3501 top
.y
= -count234(term
->scrollback
);
3503 clipme(term
, top
, term
->curs
, 0);
3507 * The wordness array is mainly for deciding the disposition of the
3508 * US-ASCII characters.
3510 static int wordtype(Terminal
*term
, int uc
)
3513 int start
, end
, ctype
;
3515 static const struct ucsword ucs_words
[] = {
3521 0x037e, 0x037e, 1}, /* Greek question mark */
3523 0x0387, 0x0387, 1}, /* Greek ano teleia */
3525 0x055a, 0x055f, 1}, /* Armenian punctuation */
3527 0x0589, 0x0589, 1}, /* Armenian full stop */
3529 0x0700, 0x070d, 1}, /* Syriac punctuation */
3531 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3533 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3535 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3537 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3539 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3541 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3543 0x2000, 0x200a, 0}, /* Various spaces */
3545 0x2070, 0x207f, 2}, /* superscript */
3547 0x2080, 0x208f, 2}, /* subscript */
3549 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3551 0x3000, 0x3000, 0}, /* ideographic space */
3553 0x3001, 0x3020, 1}, /* ideographic punctuation */
3555 0x303f, 0x309f, 3}, /* Hiragana */
3557 0x30a0, 0x30ff, 3}, /* Katakana */
3559 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3561 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3563 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3565 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3567 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3569 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3571 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3573 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3575 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3579 const struct ucsword
*wptr
;
3581 uc
&= (CSET_MASK
| CHAR_MASK
);
3583 switch (uc
& CSET_MASK
) {
3585 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3588 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3591 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3594 switch (uc
& CSET_MASK
) {
3596 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3599 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3603 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3604 * fail as there's such a thing as a double width space. :-(
3606 if (term
->ucsdata
->dbcs_screenfont
&&
3607 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3611 return term
->wordness
[uc
];
3613 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3614 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3622 * Spread the selection outwards according to the selection mode.
3624 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3626 unsigned long *ldata
;
3628 int topy
= -count234(term
->scrollback
);
3630 ldata
= lineptr(p
.y
);
3632 switch (term
->selmode
) {
3635 * In this mode, every character is a separate unit, except
3636 * for runs of spaces at the end of a non-wrapping line.
3638 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3639 unsigned long *q
= ldata
+ term
->cols
;
3640 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3642 if (q
== ldata
+ term
->cols
)
3644 if (p
.x
>= q
- ldata
)
3645 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3650 * In this mode, the units are maximal runs of characters
3651 * whose `wordness' has the same value.
3653 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3656 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3657 term
->cols
-1 : term
->cols
);
3658 if (p
.x
< maxcols
-1) {
3659 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3664 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3665 unsigned long *ldata2
;
3666 ldata2
= lineptr(p
.y
+1);
3667 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3680 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3685 unsigned long *ldata2
;
3689 ldata2
= lineptr(p
.y
-1);
3690 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3691 term
->cols
-1 : term
->cols
);
3692 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3693 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
3708 * In this mode, every line is a unit.
3710 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3716 static void sel_spread(Terminal
*term
)
3718 if (term
->seltype
== LEXICOGRAPHIC
) {
3719 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3720 decpos(term
->selend
);
3721 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3722 incpos(term
->selend
);
3726 void term_do_paste(Terminal
*term
)
3731 get_clip(term
->frontend
, &data
, &len
);
3732 if (data
&& len
> 0) {
3735 term_seen_key_event(term
); /* pasted data counts */
3737 if (term
->paste_buffer
)
3738 sfree(term
->paste_buffer
);
3739 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3740 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3743 while (p
< data
+ len
) {
3744 while (p
< data
+ len
&&
3745 !(p
<= data
+ len
- sel_nl_sz
&&
3746 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3751 for (i
= 0; i
< p
- q
; i
++) {
3752 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3756 if (p
<= data
+ len
- sel_nl_sz
&&
3757 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3758 term
->paste_buffer
[term
->paste_len
++] = '\015';
3764 /* Assume a small paste will be OK in one go. */
3765 if (term
->paste_len
< 256) {
3767 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3768 if (term
->paste_buffer
)
3769 sfree(term
->paste_buffer
);
3770 term
->paste_buffer
= 0;
3771 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3774 get_clip(term
->frontend
, NULL
, NULL
);
3777 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3778 int shift
, int ctrl
, int alt
)
3781 unsigned long *ldata
;
3782 int raw_mouse
= (term
->xterm_mouse
&&
3783 !term
->cfg
.no_mouse_rep
&&
3784 !(term
->cfg
.mouse_override
&& shift
));
3785 int default_seltype
;
3789 if (a
== MA_DRAG
&& !raw_mouse
)
3790 term_scroll(term
, 0, -1);
3792 if (y
>= term
->rows
) {
3794 if (a
== MA_DRAG
&& !raw_mouse
)
3795 term_scroll(term
, 0, +1);
3804 if (x
>= term
->cols
)
3807 selpoint
.y
= y
+ term
->disptop
;
3809 ldata
= lineptr(selpoint
.y
);
3810 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3814 int encstate
= 0, r
, c
;
3821 encstate
= 0x20; /* left button down */
3832 case MBT_WHEEL_DOWN
:
3835 default: break; /* placate gcc warning about enum use */
3839 if (term
->xterm_mouse
== 1)
3845 term
->mouse_is_down
= 0;
3848 if (term
->mouse_is_down
== b
)
3850 term
->mouse_is_down
= b
;
3852 default: break; /* placate gcc warning about enum use */
3861 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3862 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3867 b
= translate_button(term
->frontend
, b
);
3870 * Set the selection type (rectangular or normal) at the start
3871 * of a selection attempt, from the state of Alt.
3873 if (!alt
^ !term
->cfg
.rect_select
)
3874 default_seltype
= RECTANGULAR
;
3876 default_seltype
= LEXICOGRAPHIC
;
3878 if (term
->selstate
== NO_SELECTION
) {
3879 term
->seltype
= default_seltype
;
3882 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3884 term
->selstate
= ABOUT_TO
;
3885 term
->seltype
= default_seltype
;
3886 term
->selanchor
= selpoint
;
3887 term
->selmode
= SM_CHAR
;
3888 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3890 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3891 term
->selstate
= DRAGGING
;
3892 term
->selstart
= term
->selanchor
= selpoint
;
3893 term
->selend
= term
->selstart
;
3894 incpos(term
->selend
);
3896 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3897 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3898 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3900 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3901 if (term
->seltype
== LEXICOGRAPHIC
) {
3903 * For normal selection, we extend by moving
3904 * whichever end of the current selection is closer
3907 if (posdiff(selpoint
, term
->selstart
) <
3908 posdiff(term
->selend
, term
->selstart
) / 2) {
3909 term
->selanchor
= term
->selend
;
3910 decpos(term
->selanchor
);
3912 term
->selanchor
= term
->selstart
;
3916 * For rectangular selection, we have a choice of
3917 * _four_ places to put selanchor and selpoint: the
3918 * four corners of the selection.
3920 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3921 term
->selanchor
.x
= term
->selend
.x
-1;
3923 term
->selanchor
.x
= term
->selstart
.x
;
3925 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3926 term
->selanchor
.y
= term
->selend
.y
;
3928 term
->selanchor
.y
= term
->selstart
.y
;
3930 term
->selstate
= DRAGGING
;
3932 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3933 term
->selanchor
= selpoint
;
3934 term
->selstate
= DRAGGING
;
3935 if (term
->seltype
== LEXICOGRAPHIC
) {
3937 * For normal selection, we set (selstart,selend) to
3938 * (selpoint,selanchor) in some order.
3940 if (poslt(selpoint
, term
->selanchor
)) {
3941 term
->selstart
= selpoint
;
3942 term
->selend
= term
->selanchor
;
3943 incpos(term
->selend
);
3945 term
->selstart
= term
->selanchor
;
3946 term
->selend
= selpoint
;
3947 incpos(term
->selend
);
3951 * For rectangular selection, we may need to
3952 * interchange x and y coordinates (if the user has
3953 * dragged in the -x and +y directions, or vice versa).
3955 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3956 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3957 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3958 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3961 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3962 if (term
->selstate
== DRAGGING
) {
3964 * We've completed a selection. We now transfer the
3965 * data to the clipboard.
3967 clipme(term
, term
->selstart
, term
->selend
,
3968 (term
->seltype
== RECTANGULAR
));
3969 term
->selstate
= SELECTED
;
3971 term
->selstate
= NO_SELECTION
;
3972 } else if (b
== MBT_PASTE
3974 #if MULTICLICK_ONLY_EVENT
3975 || a
== MA_2CLK
|| a
== MA_3CLK
3978 request_paste(term
->frontend
);
3984 void term_nopaste(Terminal
*term
)
3986 if (term
->paste_len
== 0)
3988 sfree(term
->paste_buffer
);
3989 term
->paste_buffer
= NULL
;
3990 term
->paste_len
= 0;
3993 int term_paste_pending(Terminal
*term
)
3995 return term
->paste_len
!= 0;
3998 void term_paste(Terminal
*term
)
4000 long now
, paste_diff
;
4002 if (term
->paste_len
== 0)
4005 /* Don't wait forever to paste */
4006 if (term
->paste_hold
) {
4007 now
= GETTICKCOUNT();
4008 paste_diff
= now
- term
->last_paste
;
4009 if (paste_diff
>= 0 && paste_diff
< 450)
4012 term
->paste_hold
= 0;
4014 while (term
->paste_pos
< term
->paste_len
) {
4016 while (n
+ term
->paste_pos
< term
->paste_len
) {
4017 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4021 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4022 term
->paste_pos
+= n
;
4024 if (term
->paste_pos
< term
->paste_len
) {
4025 term
->paste_hold
= 1;
4029 sfree(term
->paste_buffer
);
4030 term
->paste_buffer
= NULL
;
4031 term
->paste_len
= 0;
4034 static void deselect(Terminal
*term
)
4036 term
->selstate
= NO_SELECTION
;
4037 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4040 void term_deselect(Terminal
*term
)
4046 int term_ldisc(Terminal
*term
, int option
)
4048 if (option
== LD_ECHO
)
4049 return term
->term_echoing
;
4050 if (option
== LD_EDIT
)
4051 return term
->term_editing
;
4056 * from_backend(), to get data from the backend for the terminal.
4058 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
4060 Terminal
*term
= (Terminal
*)vterm
;
4064 bufchain_add(&term
->inbuf
, data
, len
);
4067 * term_out() always completely empties inbuf. Therefore,
4068 * there's no reason at all to return anything other than zero
4069 * from this function, because there _can't_ be a question of
4070 * the remote side needing to wait until term_out() has cleared
4073 * This is a slightly suboptimal way to deal with SSH2 - in
4074 * principle, the window mechanism would allow us to continue
4075 * to accept data on forwarded ports and X connections even
4076 * while the terminal processing was going slowly - but we
4077 * can't do the 100% right thing without moving the terminal
4078 * processing into a separate thread, and that might hurt
4079 * portability. So we manage stdout buffering the old SSH1 way:
4080 * if the terminal processing goes slowly, the whole SSH
4081 * connection stops accepting data until it's ready.
4083 * In practice, I can't imagine this causing serious trouble.
4088 void term_provide_logctx(Terminal
*term
, void *logctx
)
4090 term
->logctx
= logctx
;