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
;
394 void term_free(Terminal
*term
)
397 struct beeptime
*beep
;
399 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
401 freetree234(term
->scrollback
);
402 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
404 freetree234(term
->screen
);
405 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
407 freetree234(term
->alt_screen
);
408 sfree(term
->disptext
);
409 while (term
->beephead
) {
410 beep
= term
->beephead
;
411 term
->beephead
= beep
->next
;
414 bufchain_clear(&term
->inbuf
);
416 printer_finish_job(term
->print_job
);
417 bufchain_clear(&term
->printer_buf
);
418 sfree(term
->paste_buffer
);
423 * Set up the terminal for a given size.
425 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
428 unsigned long *newdisp
, *line
;
431 int save_alt_which
= term
->alt_which
;
433 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
434 newsavelines
== term
->savelines
)
435 return; /* nothing to do */
438 swap_screen(term
, 0, FALSE
, FALSE
);
440 term
->alt_t
= term
->marg_t
= 0;
441 term
->alt_b
= term
->marg_b
= newrows
- 1;
443 if (term
->rows
== -1) {
444 term
->scrollback
= newtree234(NULL
);
445 term
->screen
= newtree234(NULL
);
450 * Resize the screen and scrollback. We only need to shift
451 * lines around within our data structures, because lineptr()
452 * will take care of resizing each individual line if
455 * - If the new screen and the old screen differ in length, we
456 * must shunt some lines in from the scrollback or out to
459 * - If doing that fails to provide us with enough material to
460 * fill the new screen (i.e. the number of rows needed in
461 * the new screen exceeds the total number in the previous
462 * screen+scrollback), we must invent some blank lines to
465 * - Then, if the new scrollback length is less than the
466 * amount of scrollback we actually have, we must throw some
469 sblen
= count234(term
->scrollback
);
470 /* Do this loop to expand the screen if newrows > rows */
471 for (i
= term
->rows
; i
< newrows
; i
++) {
473 line
= delpos234(term
->scrollback
, --sblen
);
475 line
= smalloc(TSIZE
* (newcols
+ 2));
477 for (j
= 0; j
<= newcols
; j
++)
478 line
[j
+ 1] = ERASE_CHAR
;
480 addpos234(term
->screen
, line
, 0);
482 /* Do this loop to shrink the screen if newrows < rows */
483 for (i
= newrows
; i
< term
->rows
; i
++) {
484 line
= delpos234(term
->screen
, 0);
485 addpos234(term
->scrollback
, line
, sblen
++);
487 assert(count234(term
->screen
) == newrows
);
488 while (sblen
> newsavelines
) {
489 line
= delpos234(term
->scrollback
, 0);
493 assert(count234(term
->scrollback
) <= newsavelines
);
496 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
497 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
498 newdisp
[i
] = ATTR_INVALID
;
499 sfree(term
->disptext
);
500 term
->disptext
= newdisp
;
501 term
->dispcurs
= NULL
;
503 newalt
= newtree234(NULL
);
504 for (i
= 0; i
< newrows
; i
++) {
505 line
= smalloc(TSIZE
* (newcols
+ 2));
507 for (j
= 0; j
<= newcols
; j
++)
508 line
[j
+ 1] = term
->erase_char
;
509 addpos234(newalt
, line
, i
);
511 if (term
->alt_screen
) {
512 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
514 freetree234(term
->alt_screen
);
516 term
->alt_screen
= newalt
;
518 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
521 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
522 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
526 term
->curs
.y
+= newrows
- term
->rows
;
527 if (term
->curs
.y
< 0)
529 if (term
->curs
.y
>= newrows
)
530 term
->curs
.y
= newrows
- 1;
531 if (term
->curs
.x
>= newcols
)
532 term
->curs
.x
= newcols
- 1;
533 term
->alt_x
= term
->alt_y
= 0;
534 term
->wrapnext
= term
->alt_wnext
= FALSE
;
536 term
->rows
= newrows
;
537 term
->cols
= newcols
;
538 term
->savelines
= newsavelines
;
541 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
546 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
550 * Hand a function and context pointer to the terminal which it can
551 * use to notify a back end of resizes.
553 void term_provide_resize_fn(Terminal
*term
,
554 void (*resize_fn
)(void *, int, int),
557 term
->resize_fn
= resize_fn
;
558 term
->resize_ctx
= resize_ctx
;
559 if (term
->cols
> 0 && term
->rows
> 0)
560 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
564 * Swap screens. If `reset' is TRUE and we have been asked to
565 * switch to the alternate screen, we must bring most of its
566 * configuration from the main screen and erase the contents of the
567 * alternate screen completely. (This is even true if we're already
568 * on it! Blame xterm.)
570 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
576 reset
= FALSE
; /* do no weird resetting if which==0 */
578 if (which
!= term
->alt_which
) {
579 term
->alt_which
= which
;
581 ttr
= term
->alt_screen
;
582 term
->alt_screen
= term
->screen
;
585 if (!reset
&& !keep_cur_pos
)
586 term
->curs
.x
= term
->alt_x
;
589 if (!reset
&& !keep_cur_pos
)
590 term
->curs
.y
= term
->alt_y
;
593 if (!reset
) term
->marg_t
= term
->alt_t
;
596 if (!reset
) term
->marg_b
= term
->alt_b
;
599 if (!reset
) term
->dec_om
= term
->alt_om
;
602 if (!reset
) term
->wrap
= term
->alt_wrap
;
605 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
608 if (!reset
) term
->insert
= term
->alt_ins
;
611 if (!reset
) term
->cset
= term
->alt_cset
;
614 if (!reset
) term
->utf
= term
->alt_utf
;
617 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
618 term
->alt_sco_acs
= t
;
621 if (reset
&& term
->screen
) {
623 * Yes, this _is_ supposed to honour background-colour-erase.
625 erase_lots(term
, FALSE
, TRUE
, TRUE
);
629 * This might not be possible if we're called during
637 * Update the scroll bar.
639 static void update_sbar(Terminal
*term
)
643 nscroll
= count234(term
->scrollback
);
645 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
646 nscroll
+ term
->disptop
, term
->rows
);
650 * Check whether the region bounded by the two pointers intersects
651 * the scroll region, and de-select the on-screen selection if so.
653 static void check_selection(Terminal
*term
, pos from
, pos to
)
655 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
660 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
661 * for backward.) `sb' is TRUE if the scrolling is permitted to
662 * affect the scrollback buffer.
664 * NB this function invalidates all pointers into lines of the
665 * screen data structures. In particular, you MUST call fix_cpos
666 * after calling scroll() and before doing anything else that
667 * uses the cpos shortcut pointer.
669 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
671 unsigned long *line
, *line2
;
672 int i
, seltop
, olddisptop
, shift
;
674 if (topline
!= 0 || term
->alt_which
!= 0)
677 olddisptop
= term
->disptop
;
681 line
= delpos234(term
->screen
, botline
);
682 line
= resizeline(line
, term
->cols
);
683 for (i
= 0; i
< term
->cols
; i
++)
684 line
[i
+ 1] = term
->erase_char
;
685 line
[term
->cols
+ 1] = 0;
686 addpos234(term
->screen
, line
, topline
);
688 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
690 if (term
->selstart
.y
> botline
) {
691 term
->selstart
.y
= botline
;
692 term
->selstart
.x
= 0;
695 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
697 if (term
->selend
.y
> botline
) {
698 term
->selend
.y
= botline
;
707 line
= delpos234(term
->screen
, topline
);
708 if (sb
&& term
->savelines
> 0) {
709 int sblen
= count234(term
->scrollback
);
711 * We must add this line to the scrollback. We'll
712 * remove a line from the top of the scrollback to
713 * replace it, or allocate a new one if the
714 * scrollback isn't full.
716 if (sblen
== term
->savelines
) {
717 sblen
--, line2
= delpos234(term
->scrollback
, 0);
719 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
720 line2
[0] = term
->cols
;
722 addpos234(term
->scrollback
, line
, sblen
);
726 * If the user is currently looking at part of the
727 * scrollback, and they haven't enabled any options
728 * that are going to reset the scrollback as a
729 * result of this movement, then the chances are
730 * they'd like to keep looking at the same line. So
731 * we move their viewpoint at the same rate as the
732 * scroll, at least until their viewpoint hits the
733 * top end of the scrollback buffer, at which point
734 * we don't have the choice any more.
736 * Thanks to Jan Holmen Holsten for the idea and
737 * initial implementation.
739 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
742 line
= resizeline(line
, term
->cols
);
743 for (i
= 0; i
< term
->cols
; i
++)
744 line
[i
+ 1] = term
->erase_char
;
745 line
[term
->cols
+ 1] = 0;
746 addpos234(term
->screen
, line
, botline
);
749 * If the selection endpoints move into the scrollback,
750 * we keep them moving until they hit the top. However,
751 * of course, if the line _hasn't_ moved into the
752 * scrollback then we don't do this, and cut them off
753 * at the top of the scroll region.
755 * This applies to selstart and selend (for an existing
756 * selection), and also selanchor (for one being
757 * selected as we speak).
759 seltop
= sb ?
-term
->savelines
: topline
;
761 if (term
->selstart
.y
>= seltop
&&
762 term
->selstart
.y
<= botline
) {
764 if (term
->selstart
.y
< seltop
) {
765 term
->selstart
.y
= seltop
;
766 term
->selstart
.x
= 0;
769 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
771 if (term
->selend
.y
< seltop
) {
772 term
->selend
.y
= seltop
;
776 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
778 if (term
->selanchor
.y
< seltop
) {
779 term
->selanchor
.y
= seltop
;
780 term
->selanchor
.x
= 0;
787 #ifdef OPTIMISE_SCROLL
788 shift
+= term
->disptop
- olddisptop
;
789 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
790 scroll_display(term
, topline
, botline
, shift
);
791 #endif /* OPTIMISE_SCROLL */
794 #ifdef OPTIMISE_SCROLL
796 * Scroll the physical display, and our conception of it in disptext.
798 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
800 unsigned long *start
, *end
;
801 int distance
, size
, i
;
803 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
804 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
805 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
806 size
= end
- start
- distance
;
808 memmove(start
, start
+ distance
, size
* TSIZE
);
809 if (term
->dispcurs
>= start
+ distance
&&
810 term
->dispcurs
<= start
+ distance
+ size
)
811 term
->dispcurs
-= distance
;
812 for (i
= 0; i
< distance
; i
++)
813 (start
+ size
)[i
] |= ATTR_INVALID
;
815 memmove(start
+ distance
, start
, size
* TSIZE
);
816 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
817 term
->dispcurs
+= distance
;
818 for (i
= 0; i
< distance
; i
++)
819 start
[i
] |= ATTR_INVALID
;
821 do_scroll(term
->frontend
, topline
, botline
, lines
);
823 #endif /* OPTIMISE_SCROLL */
826 * Move the cursor to a given position, clipping at boundaries. We
827 * may or may not want to clip at the scroll margin: marg_clip is 0
828 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
829 * even _being_ outside the margins.
831 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
838 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
841 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
852 term
->wrapnext
= FALSE
;
856 * Save or restore the cursor and SGR mode.
858 static void save_cursor(Terminal
*term
, int save
)
861 term
->savecurs
= term
->curs
;
862 term
->save_attr
= term
->curr_attr
;
863 term
->save_cset
= term
->cset
;
864 term
->save_utf
= term
->utf
;
865 term
->save_wnext
= term
->wrapnext
;
866 term
->save_csattr
= term
->cset_attr
[term
->cset
];
867 term
->save_sco_acs
= term
->sco_acs
;
869 term
->curs
= term
->savecurs
;
870 /* Make sure the window hasn't shrunk since the save */
871 if (term
->curs
.x
>= term
->cols
)
872 term
->curs
.x
= term
->cols
- 1;
873 if (term
->curs
.y
>= term
->rows
)
874 term
->curs
.y
= term
->rows
- 1;
876 term
->curr_attr
= term
->save_attr
;
877 term
->cset
= term
->save_cset
;
878 term
->utf
= term
->save_utf
;
879 term
->wrapnext
= term
->save_wnext
;
881 * wrapnext might reset to False if the x position is no
882 * longer at the rightmost edge.
884 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
885 term
->wrapnext
= FALSE
;
886 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
887 term
->sco_acs
= term
->save_sco_acs
;
890 term
->erase_char
= (' ' | ATTR_ASCII
|
892 (ATTR_FGMASK
| ATTR_BGMASK
)));
897 * This function is called before doing _anything_ which affects
898 * only part of a line of text. It is used to mark the boundary
899 * between two character positions, and it indicates that some sort
900 * of effect is going to happen on only one side of that boundary.
902 * The effect of this function is to check whether a CJK
903 * double-width character is straddling the boundary, and to remove
904 * it and replace it with two spaces if so. (Of course, one or
905 * other of those spaces is then likely to be replaced with
906 * something else again, as a result of whatever happens next.)
908 * Also, if the boundary is at the right-hand _edge_ of the screen,
909 * it implies something deliberate is being done to the rightmost
910 * column position; hence we must clear LATTR_WRAPPED2.
912 * The input to the function is the coordinates of the _second_
913 * character of the pair.
915 static void check_boundary(Terminal
*term
, int x
, int y
)
917 unsigned long *ldata
;
919 /* Validate input coordinates, just in case. */
920 if (x
== 0 || x
> term
->cols
)
924 if (x
== term
->cols
) {
925 ldata
[x
] &= ~LATTR_WRAPPED2
;
927 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
928 ldata
[x
-1] = ldata
[x
] =
929 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
935 * Erase a large portion of the screen: the whole screen, or the
936 * whole line, or parts thereof.
938 static void erase_lots(Terminal
*term
,
939 int line_only
, int from_begin
, int to_end
)
943 unsigned long *ldata
;
946 start
.y
= term
->curs
.y
;
948 end
.y
= term
->curs
.y
+ 1;
965 if (!from_begin
|| !to_end
)
966 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
967 check_selection(term
, start
, end
);
969 /* Clear screen also forces a full window redraw, just in case. */
970 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
971 term_invalidate(term
);
973 ldata
= lineptr(start
.y
);
974 while (poslt(start
, end
)) {
975 if (start
.x
== term
->cols
&& !erase_lattr
)
976 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
978 ldata
[start
.x
] = term
->erase_char
;
979 if (incpos(start
) && start
.y
< term
->rows
)
980 ldata
= lineptr(start
.y
);
985 * Insert or delete characters within the current line. n is +ve if
986 * insertion is desired, and -ve for deletion.
988 static void insch(Terminal
*term
, int n
)
990 int dir
= (n
< 0 ?
-1 : +1);
993 unsigned long *ldata
;
995 n
= (n
< 0 ?
-n
: n
);
996 if (n
> term
->cols
- term
->curs
.x
)
997 n
= term
->cols
- term
->curs
.x
;
998 m
= term
->cols
- term
->curs
.x
- n
;
999 cursplus
.y
= term
->curs
.y
;
1000 cursplus
.x
= term
->curs
.x
+ n
;
1001 check_selection(term
, term
->curs
, cursplus
);
1002 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1004 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1005 ldata
= lineptr(term
->curs
.y
);
1007 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1009 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1011 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1013 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1018 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1019 * whether the mode is a DEC private one or a normal one.)
1021 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1023 unsigned long ticks
;
1027 case 1: /* application cursor keys */
1028 term
->app_cursor_keys
= state
;
1030 case 2: /* VT52 mode */
1031 term
->vt52_mode
= !state
;
1032 if (term
->vt52_mode
) {
1033 term
->blink_is_real
= FALSE
;
1034 term
->vt52_bold
= FALSE
;
1036 term
->blink_is_real
= term
->cfg
.blinktext
;
1039 case 3: /* 80/132 columns */
1041 if (!term
->cfg
.no_remote_resize
)
1042 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1043 term
->reset_132
= state
;
1045 case 5: /* reverse video */
1047 * Toggle reverse video. If we receive an OFF within the
1048 * visual bell timeout period after an ON, we trigger an
1049 * effective visual bell, so that ESC[?5hESC[?5l will
1050 * always be an actually _visible_ visual bell.
1052 ticks
= GETTICKCOUNT();
1053 /* turn off a previous vbell to avoid inconsistencies */
1054 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1055 term
->in_vbell
= FALSE
;
1056 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1057 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1058 /* If there's no vbell timeout already, or this one lasts
1059 * longer, replace vbell_timeout with ours. */
1060 if (!term
->in_vbell
||
1061 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1063 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1064 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1065 } else if (!term
->rvideo
&& state
) {
1066 /* This is an ON, so we notice the time and save it. */
1067 term
->rvbell_startpoint
= ticks
;
1069 term
->rvideo
= state
;
1070 term
->seen_disp_event
= TRUE
;
1074 case 6: /* DEC origin mode */
1075 term
->dec_om
= state
;
1077 case 7: /* auto wrap */
1080 case 8: /* auto key repeat */
1081 term
->repeat_off
= !state
;
1083 case 10: /* set local edit mode */
1084 term
->term_editing
= state
;
1085 if (term
->ldisc
) /* cause ldisc to notice changes */
1086 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1088 case 25: /* enable/disable cursor */
1089 compatibility2(OTHER
, VT220
);
1090 term
->cursor_on
= state
;
1091 term
->seen_disp_event
= TRUE
;
1093 case 47: /* alternate screen */
1094 compatibility(OTHER
);
1096 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1099 case 1000: /* xterm mouse 1 */
1100 term
->xterm_mouse
= state ?
1 : 0;
1101 set_raw_mouse_mode(term
->frontend
, state
);
1103 case 1002: /* xterm mouse 2 */
1104 term
->xterm_mouse
= state ?
2 : 0;
1105 set_raw_mouse_mode(term
->frontend
, state
);
1107 case 1047: /* alternate screen */
1108 compatibility(OTHER
);
1110 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1113 case 1048: /* save/restore cursor */
1114 save_cursor(term
, state
);
1115 if (!state
) term
->seen_disp_event
= TRUE
;
1117 case 1049: /* cursor & alternate screen */
1119 save_cursor(term
, state
);
1120 if (!state
) term
->seen_disp_event
= TRUE
;
1121 compatibility(OTHER
);
1123 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1125 save_cursor(term
, state
);
1130 case 4: /* set insert mode */
1131 compatibility(VT102
);
1132 term
->insert
= state
;
1134 case 12: /* set echo mode */
1135 term
->term_echoing
= !state
;
1136 if (term
->ldisc
) /* cause ldisc to notice changes */
1137 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1139 case 20: /* Return sends ... */
1140 term
->cr_lf_return
= state
;
1142 case 34: /* Make cursor BIG */
1143 compatibility2(OTHER
, VT220
);
1144 term
->big_cursor
= !state
;
1149 * Process an OSC sequence: set window title or icon name.
1151 static void do_osc(Terminal
*term
)
1154 while (term
->osc_strlen
--)
1155 term
->wordness
[(unsigned char)
1156 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1158 term
->osc_string
[term
->osc_strlen
] = '\0';
1159 switch (term
->esc_args
[0]) {
1162 if (!term
->cfg
.no_remote_wintitle
)
1163 set_icon(term
->frontend
, term
->osc_string
);
1164 if (term
->esc_args
[0] == 1)
1166 /* fall through: parameter 0 means set both */
1169 if (!term
->cfg
.no_remote_wintitle
)
1170 set_title(term
->frontend
, term
->osc_string
);
1177 * ANSI printing routines.
1179 static void term_print_setup(Terminal
*term
)
1181 bufchain_clear(&term
->printer_buf
);
1182 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1184 static void term_print_flush(Terminal
*term
)
1189 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1190 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1193 printer_job_data(term
->print_job
, data
, len
);
1194 bufchain_consume(&term
->printer_buf
, len
);
1197 static void term_print_finish(Terminal
*term
)
1203 if (!term
->printing
&& !term
->only_printing
)
1204 return; /* we need do nothing */
1206 term_print_flush(term
);
1207 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1208 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1210 if (c
== '\033' || c
== '\233') {
1211 bufchain_consume(&term
->printer_buf
, size
);
1214 printer_job_data(term
->print_job
, &c
, 1);
1215 bufchain_consume(&term
->printer_buf
, 1);
1218 printer_finish_job(term
->print_job
);
1219 term
->print_job
= NULL
;
1220 term
->printing
= term
->only_printing
= FALSE
;
1224 * Remove everything currently in `inbuf' and stick it up on the
1225 * in-memory display. There's a big state machine in here to
1226 * process escape sequences...
1228 void term_out(Terminal
*term
)
1231 unsigned char localbuf
[256], *chars
;
1236 chars
= NULL
; /* placate compiler warnings */
1237 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1241 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1242 if (nchars
> sizeof(localbuf
))
1243 nchars
= sizeof(localbuf
);
1244 memcpy(localbuf
, ret
, nchars
);
1245 bufchain_consume(&term
->inbuf
, nchars
);
1247 assert(chars
!= NULL
);
1253 * Optionally log the session traffic to a file. Useful for
1254 * debugging and possibly also useful for actual logging.
1256 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1257 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1263 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1264 * be able to display 8-bit characters, but I'll let that go 'cause
1269 * If we're printing, add the character to the printer
1272 if (term
->printing
) {
1273 bufchain_add(&term
->printer_buf
, &c
, 1);
1276 * If we're in print-only mode, we use a much simpler
1277 * state machine designed only to recognise the ESC[4i
1278 * termination sequence.
1280 if (term
->only_printing
) {
1282 term
->print_state
= 1;
1283 else if (c
== (unsigned char)'\233')
1284 term
->print_state
= 2;
1285 else if (c
== '[' && term
->print_state
== 1)
1286 term
->print_state
= 2;
1287 else if (c
== '4' && term
->print_state
== 2)
1288 term
->print_state
= 3;
1289 else if (c
== 'i' && term
->print_state
== 3)
1290 term
->print_state
= 4;
1292 term
->print_state
= 0;
1293 if (term
->print_state
== 4) {
1294 term_print_finish(term
);
1300 /* First see about all those translations. */
1301 if (term
->termstate
== TOPLEVEL
) {
1303 switch (term
->utf_state
) {
1306 /* UTF-8 must be stateless so we ignore iso2022. */
1307 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1308 c
= term
->ucsdata
->unitab_ctrl
[c
];
1309 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1311 } else if ((c
& 0xe0) == 0xc0) {
1312 term
->utf_size
= term
->utf_state
= 1;
1313 term
->utf_char
= (c
& 0x1f);
1314 } else if ((c
& 0xf0) == 0xe0) {
1315 term
->utf_size
= term
->utf_state
= 2;
1316 term
->utf_char
= (c
& 0x0f);
1317 } else if ((c
& 0xf8) == 0xf0) {
1318 term
->utf_size
= term
->utf_state
= 3;
1319 term
->utf_char
= (c
& 0x07);
1320 } else if ((c
& 0xfc) == 0xf8) {
1321 term
->utf_size
= term
->utf_state
= 4;
1322 term
->utf_char
= (c
& 0x03);
1323 } else if ((c
& 0xfe) == 0xfc) {
1324 term
->utf_size
= term
->utf_state
= 5;
1325 term
->utf_char
= (c
& 0x01);
1336 if ((c
& 0xC0) != 0x80) {
1339 term
->utf_state
= 0;
1342 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1343 if (--term
->utf_state
)
1348 /* Is somebody trying to be evil! */
1350 (c
< 0x800 && term
->utf_size
>= 2) ||
1351 (c
< 0x10000 && term
->utf_size
>= 3) ||
1352 (c
< 0x200000 && term
->utf_size
>= 4) ||
1353 (c
< 0x4000000 && term
->utf_size
>= 5))
1356 /* Unicode line separator and paragraph separator are CR-LF */
1357 if (c
== 0x2028 || c
== 0x2029)
1360 /* High controls are probably a Baaad idea too. */
1364 /* The UTF-16 surrogates are not nice either. */
1365 /* The standard give the option of decoding these:
1366 * I don't want to! */
1367 if (c
>= 0xD800 && c
< 0xE000)
1370 /* ISO 10646 characters now limited to UTF-16 range. */
1374 /* This is currently a TagPhobic application.. */
1375 if (c
>= 0xE0000 && c
<= 0xE007F)
1378 /* U+FEFF is best seen as a null. */
1381 /* But U+FFFE is an error. */
1382 if (c
== 0xFFFE || c
== 0xFFFF)
1385 /* Oops this is a 16bit implementation */
1390 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1391 else if(term
->sco_acs
&&
1392 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1394 if (term
->sco_acs
== 2) c
|= 0x80;
1397 switch (term
->cset_attr
[term
->cset
]) {
1399 * Linedraw characters are different from 'ESC ( B'
1400 * only for a small range. For ones outside that
1401 * range, make sure we use the same font as well as
1402 * the same encoding.
1405 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1406 c
= term
->ucsdata
->unitab_ctrl
[c
];
1408 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1412 /* If UK-ASCII, make the '#' a LineDraw Pound */
1414 c
= '}' | ATTR_LINEDRW
;
1417 /*FALLTHROUGH*/ case ATTR_ASCII
:
1418 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1419 c
= term
->ucsdata
->unitab_ctrl
[c
];
1421 c
= ((unsigned char) c
) | ATTR_ASCII
;
1424 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1430 /* How about C1 controls ? */
1431 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1432 !term
->vt52_mode
&& has_compat(VT220
)) {
1433 term
->termstate
= SEEN_ESC
;
1434 term
->esc_query
= FALSE
;
1435 c
= '@' + (c
& 0x1F);
1438 /* Or the GL control. */
1439 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1440 if (term
->curs
.x
&& !term
->wrapnext
)
1442 term
->wrapnext
= FALSE
;
1444 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1445 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1447 /* Or normal C0 controls. */
1448 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1450 case '\005': /* terminal type query */
1451 /* Strictly speaking this is VT100 but a VT100 defaults to
1452 * no response. Other terminals respond at their option.
1454 * Don't put a CR in the default string as this tends to
1455 * upset some weird software.
1457 * An xterm returns "xterm" (5 characters)
1459 compatibility(ANSIMIN
);
1461 char abuf
[256], *s
, *d
;
1463 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1465 if (*s
>= 'a' && *s
<= 'z')
1466 *d
++ = (*s
- ('a' - 1));
1467 else if ((*s
>= '@' && *s
<= '_') ||
1468 *s
== '?' || (*s
& 0x80))
1473 } else if (*s
== '^') {
1478 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1484 struct beeptime
*newbeep
;
1485 unsigned long ticks
;
1487 ticks
= GETTICKCOUNT();
1489 if (!term
->beep_overloaded
) {
1490 newbeep
= smalloc(sizeof(struct beeptime
));
1491 newbeep
->ticks
= ticks
;
1492 newbeep
->next
= NULL
;
1493 if (!term
->beephead
)
1494 term
->beephead
= newbeep
;
1496 term
->beeptail
->next
= newbeep
;
1497 term
->beeptail
= newbeep
;
1502 * Throw out any beeps that happened more than
1505 while (term
->beephead
&&
1506 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1507 struct beeptime
*tmp
= term
->beephead
;
1508 term
->beephead
= tmp
->next
;
1510 if (!term
->beephead
)
1511 term
->beeptail
= NULL
;
1515 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1516 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1518 * If we're currently overloaded and the
1519 * last beep was more than s seconds ago,
1520 * leave overload mode.
1522 term
->beep_overloaded
= FALSE
;
1523 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1524 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1526 * Now, if we have n or more beeps
1527 * remaining in the queue, go into overload
1530 term
->beep_overloaded
= TRUE
;
1532 term
->lastbeep
= ticks
;
1535 * Perform an actual beep if we're not overloaded.
1537 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1538 beep(term
->frontend
, term
->cfg
.beep
);
1539 if (term
->cfg
.beep
== BELL_VISUAL
) {
1540 term
->in_vbell
= TRUE
;
1541 term
->vbell_startpoint
= ticks
;
1549 if (term
->curs
.x
== 0 &&
1550 (term
->curs
.y
== 0 || term
->wrap
== 0))
1552 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1553 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1554 else if (term
->wrapnext
)
1555 term
->wrapnext
= FALSE
;
1559 term
->seen_disp_event
= TRUE
;
1562 compatibility(VT100
);
1566 compatibility(VT100
);
1570 if (term
->vt52_mode
)
1571 term
->termstate
= VT52_ESC
;
1573 compatibility(ANSIMIN
);
1574 term
->termstate
= SEEN_ESC
;
1575 term
->esc_query
= FALSE
;
1580 term
->wrapnext
= FALSE
;
1582 term
->seen_disp_event
= TRUE
;
1583 term
->paste_hold
= 0;
1585 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1588 if (has_compat(SCOANSI
)) {
1589 move(term
, 0, 0, 0);
1590 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1592 term
->wrapnext
= FALSE
;
1593 term
->seen_disp_event
= 1;
1597 compatibility(VT100
);
1599 if (term
->curs
.y
== term
->marg_b
)
1600 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1601 else if (term
->curs
.y
< term
->rows
- 1)
1603 if (term
->cfg
.lfhascr
)
1606 term
->wrapnext
= FALSE
;
1607 term
->seen_disp_event
= 1;
1608 term
->paste_hold
= 0;
1610 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1614 pos old_curs
= term
->curs
;
1615 unsigned long *ldata
= lineptr(term
->curs
.y
);
1619 } while (term
->curs
.x
< term
->cols
- 1 &&
1620 !term
->tabs
[term
->curs
.x
]);
1622 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1623 if (term
->curs
.x
>= term
->cols
/ 2)
1624 term
->curs
.x
= term
->cols
/ 2 - 1;
1626 if (term
->curs
.x
>= term
->cols
)
1627 term
->curs
.x
= term
->cols
- 1;
1631 check_selection(term
, old_curs
, term
->curs
);
1633 term
->seen_disp_event
= TRUE
;
1637 switch (term
->termstate
) {
1639 /* Only graphic characters get this far;
1640 * ctrls are stripped above */
1641 if (term
->wrapnext
&& term
->wrap
) {
1642 term
->cpos
[1] |= LATTR_WRAPPED
;
1643 if (term
->curs
.y
== term
->marg_b
)
1644 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1645 else if (term
->curs
.y
< term
->rows
- 1)
1649 term
->wrapnext
= FALSE
;
1653 if (term
->selstate
!= NO_SELECTION
) {
1654 pos cursplus
= term
->curs
;
1656 check_selection(term
, term
->curs
, cursplus
);
1658 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1660 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1666 width
= wcwidth((wchar_t) c
);
1670 * If we're about to display a double-width
1671 * character starting in the rightmost
1672 * column, then we do something special
1673 * instead. We must print a space in the
1674 * last column of the screen, then wrap;
1675 * and we also set LATTR_WRAPPED2 which
1676 * instructs subsequent cut-and-pasting not
1677 * only to splice this line to the one
1678 * after it, but to ignore the space in the
1679 * last character position as well.
1680 * (Because what was actually output to the
1681 * terminal was presumably just a sequence
1682 * of CJK characters, and we don't want a
1683 * space to be pasted in the middle of
1684 * those just because they had the
1685 * misfortune to start in the wrong parity
1686 * column. xterm concurs.)
1688 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1689 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1690 if (term
->curs
.x
== term
->cols
-1) {
1691 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1692 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1693 if (term
->curs
.y
== term
->marg_b
)
1694 scroll(term
, term
->marg_t
, term
->marg_b
,
1696 else if (term
->curs
.y
< term
->rows
- 1)
1700 /* Now we must check_boundary again, of course. */
1701 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1702 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1704 *term
->cpos
++ = c
| term
->curr_attr
;
1705 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1709 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1710 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1711 *term
->cpos
++ = c
| term
->curr_attr
;
1718 if (term
->curs
.x
== term
->cols
) {
1721 term
->wrapnext
= TRUE
;
1722 if (term
->wrap
&& term
->vt52_mode
) {
1723 term
->cpos
[1] |= LATTR_WRAPPED
;
1724 if (term
->curs
.y
== term
->marg_b
)
1725 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1726 else if (term
->curs
.y
< term
->rows
- 1)
1730 term
->wrapnext
= FALSE
;
1733 term
->seen_disp_event
= 1;
1738 * This state is virtually identical to SEEN_ESC, with the
1739 * exception that we have an OSC sequence in the pipeline,
1740 * and _if_ we see a backslash, we process it.
1744 term
->termstate
= TOPLEVEL
;
1747 /* else fall through */
1749 if (c
>= ' ' && c
<= '/') {
1750 if (term
->esc_query
)
1751 term
->esc_query
= -1;
1753 term
->esc_query
= c
;
1756 term
->termstate
= TOPLEVEL
;
1757 switch (ANSI(c
, term
->esc_query
)) {
1758 case '[': /* enter CSI mode */
1759 term
->termstate
= SEEN_CSI
;
1760 term
->esc_nargs
= 1;
1761 term
->esc_args
[0] = ARG_DEFAULT
;
1762 term
->esc_query
= FALSE
;
1764 case ']': /* xterm escape sequences */
1765 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1766 compatibility(OTHER
);
1767 term
->termstate
= SEEN_OSC
;
1768 term
->esc_args
[0] = 0;
1770 case '7': /* save cursor */
1771 compatibility(VT100
);
1772 save_cursor(term
, TRUE
);
1774 case '8': /* restore cursor */
1775 compatibility(VT100
);
1776 save_cursor(term
, FALSE
);
1777 term
->seen_disp_event
= TRUE
;
1780 compatibility(VT100
);
1781 term
->app_keypad_keys
= TRUE
;
1784 compatibility(VT100
);
1785 term
->app_keypad_keys
= FALSE
;
1787 case 'D': /* exactly equivalent to LF */
1788 compatibility(VT100
);
1789 if (term
->curs
.y
== term
->marg_b
)
1790 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1791 else if (term
->curs
.y
< term
->rows
- 1)
1794 term
->wrapnext
= FALSE
;
1795 term
->seen_disp_event
= TRUE
;
1797 case 'E': /* exactly equivalent to CR-LF */
1798 compatibility(VT100
);
1800 if (term
->curs
.y
== term
->marg_b
)
1801 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1802 else if (term
->curs
.y
< term
->rows
- 1)
1805 term
->wrapnext
= FALSE
;
1806 term
->seen_disp_event
= TRUE
;
1808 case 'M': /* reverse index - backwards LF */
1809 compatibility(VT100
);
1810 if (term
->curs
.y
== term
->marg_t
)
1811 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1812 else if (term
->curs
.y
> 0)
1815 term
->wrapnext
= FALSE
;
1816 term
->seen_disp_event
= TRUE
;
1818 case 'Z': /* terminal type query */
1819 compatibility(VT100
);
1821 ldisc_send(term
->ldisc
, term
->id_string
,
1822 strlen(term
->id_string
), 0);
1824 case 'c': /* restore power-on settings */
1825 compatibility(VT100
);
1827 if (term
->ldisc
) /* cause ldisc to notice changes */
1828 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1829 if (term
->reset_132
) {
1830 if (!term
->cfg
.no_remote_resize
)
1831 request_resize(term
->frontend
, 80, term
->rows
);
1832 term
->reset_132
= 0;
1836 term
->seen_disp_event
= TRUE
;
1838 case 'H': /* set a tab */
1839 compatibility(VT100
);
1840 term
->tabs
[term
->curs
.x
] = TRUE
;
1843 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1844 compatibility(VT100
);
1846 unsigned long *ldata
;
1850 for (i
= 0; i
< term
->rows
; i
++) {
1852 for (j
= 0; j
< term
->cols
; j
++)
1853 ldata
[j
] = ATTR_DEFAULT
| 'E';
1854 ldata
[term
->cols
] = 0;
1857 term
->seen_disp_event
= TRUE
;
1858 scrtop
.x
= scrtop
.y
= 0;
1860 scrbot
.y
= term
->rows
;
1861 check_selection(term
, scrtop
, scrbot
);
1865 case ANSI('3', '#'):
1866 case ANSI('4', '#'):
1867 case ANSI('5', '#'):
1868 case ANSI('6', '#'):
1869 compatibility(VT100
);
1871 unsigned long nlattr
;
1872 unsigned long *ldata
;
1873 switch (ANSI(c
, term
->esc_query
)) {
1874 case ANSI('3', '#'):
1877 case ANSI('4', '#'):
1880 case ANSI('5', '#'):
1881 nlattr
= LATTR_NORM
;
1883 default: /* spiritually case ANSI('6', '#'): */
1884 nlattr
= LATTR_WIDE
;
1887 ldata
= lineptr(term
->curs
.y
);
1888 ldata
[term
->cols
] &= ~LATTR_MODE
;
1889 ldata
[term
->cols
] |= nlattr
;
1893 case ANSI('A', '('):
1894 compatibility(VT100
);
1895 if (!term
->cfg
.no_remote_charset
)
1896 term
->cset_attr
[0] = ATTR_GBCHR
;
1898 case ANSI('B', '('):
1899 compatibility(VT100
);
1900 if (!term
->cfg
.no_remote_charset
)
1901 term
->cset_attr
[0] = ATTR_ASCII
;
1903 case ANSI('0', '('):
1904 compatibility(VT100
);
1905 if (!term
->cfg
.no_remote_charset
)
1906 term
->cset_attr
[0] = ATTR_LINEDRW
;
1908 case ANSI('U', '('):
1909 compatibility(OTHER
);
1910 if (!term
->cfg
.no_remote_charset
)
1911 term
->cset_attr
[0] = ATTR_SCOACS
;
1914 case ANSI('A', ')'):
1915 compatibility(VT100
);
1916 if (!term
->cfg
.no_remote_charset
)
1917 term
->cset_attr
[1] = ATTR_GBCHR
;
1919 case ANSI('B', ')'):
1920 compatibility(VT100
);
1921 if (!term
->cfg
.no_remote_charset
)
1922 term
->cset_attr
[1] = ATTR_ASCII
;
1924 case ANSI('0', ')'):
1925 compatibility(VT100
);
1926 if (!term
->cfg
.no_remote_charset
)
1927 term
->cset_attr
[1] = ATTR_LINEDRW
;
1929 case ANSI('U', ')'):
1930 compatibility(OTHER
);
1931 if (!term
->cfg
.no_remote_charset
)
1932 term
->cset_attr
[1] = ATTR_SCOACS
;
1935 case ANSI('8', '%'): /* Old Linux code */
1936 case ANSI('G', '%'):
1937 compatibility(OTHER
);
1938 if (!term
->cfg
.no_remote_charset
)
1941 case ANSI('@', '%'):
1942 compatibility(OTHER
);
1943 if (!term
->cfg
.no_remote_charset
)
1949 term
->termstate
= TOPLEVEL
; /* default */
1951 if (term
->esc_nargs
<= ARGS_MAX
) {
1952 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1953 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1954 term
->esc_args
[term
->esc_nargs
- 1] =
1955 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1957 term
->termstate
= SEEN_CSI
;
1958 } else if (c
== ';') {
1959 if (++term
->esc_nargs
<= ARGS_MAX
)
1960 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1961 term
->termstate
= SEEN_CSI
;
1962 } else if (c
< '@') {
1963 if (term
->esc_query
)
1964 term
->esc_query
= -1;
1966 term
->esc_query
= TRUE
;
1968 term
->esc_query
= c
;
1969 term
->termstate
= SEEN_CSI
;
1971 switch (ANSI(c
, term
->esc_query
)) {
1972 case 'A': /* move up N lines */
1973 move(term
, term
->curs
.x
,
1974 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1975 term
->seen_disp_event
= TRUE
;
1977 case 'e': /* move down N lines */
1978 compatibility(ANSI
);
1981 move(term
, term
->curs
.x
,
1982 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1983 term
->seen_disp_event
= TRUE
;
1985 case ANSI('c', '>'): /* report xterm version */
1986 compatibility(OTHER
);
1987 /* this reports xterm version 136 so that VIM can
1988 use the drag messages from the mouse reporting */
1990 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1992 case 'a': /* move right N cols */
1993 compatibility(ANSI
);
1996 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1998 term
->seen_disp_event
= TRUE
;
2000 case 'D': /* move left N cols */
2001 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2003 term
->seen_disp_event
= TRUE
;
2005 case 'E': /* move down N lines and CR */
2006 compatibility(ANSI
);
2008 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2009 term
->seen_disp_event
= TRUE
;
2011 case 'F': /* move up N lines and CR */
2012 compatibility(ANSI
);
2014 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2015 term
->seen_disp_event
= TRUE
;
2018 case '`': /* set horizontal posn */
2019 compatibility(ANSI
);
2020 move(term
, def(term
->esc_args
[0], 1) - 1,
2022 term
->seen_disp_event
= TRUE
;
2024 case 'd': /* set vertical posn */
2025 compatibility(ANSI
);
2026 move(term
, term
->curs
.x
,
2027 ((term
->dec_om ? term
->marg_t
: 0) +
2028 def(term
->esc_args
[0], 1) - 1),
2029 (term
->dec_om ?
2 : 0));
2030 term
->seen_disp_event
= TRUE
;
2033 case 'f': /* set horz and vert posns at once */
2034 if (term
->esc_nargs
< 2)
2035 term
->esc_args
[1] = ARG_DEFAULT
;
2036 move(term
, def(term
->esc_args
[1], 1) - 1,
2037 ((term
->dec_om ? term
->marg_t
: 0) +
2038 def(term
->esc_args
[0], 1) - 1),
2039 (term
->dec_om ?
2 : 0));
2040 term
->seen_disp_event
= TRUE
;
2042 case 'J': /* erase screen or parts of it */
2044 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2047 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2050 term
->seen_disp_event
= TRUE
;
2052 case 'K': /* erase line or parts of it */
2054 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2057 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2059 term
->seen_disp_event
= TRUE
;
2061 case 'L': /* insert lines */
2062 compatibility(VT102
);
2063 if (term
->curs
.y
<= term
->marg_b
)
2064 scroll(term
, term
->curs
.y
, term
->marg_b
,
2065 -def(term
->esc_args
[0], 1), FALSE
);
2067 term
->seen_disp_event
= TRUE
;
2069 case 'M': /* delete lines */
2070 compatibility(VT102
);
2071 if (term
->curs
.y
<= term
->marg_b
)
2072 scroll(term
, term
->curs
.y
, term
->marg_b
,
2073 def(term
->esc_args
[0], 1),
2076 term
->seen_disp_event
= TRUE
;
2078 case '@': /* insert chars */
2079 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2080 compatibility(VT102
);
2081 insch(term
, def(term
->esc_args
[0], 1));
2082 term
->seen_disp_event
= TRUE
;
2084 case 'P': /* delete chars */
2085 compatibility(VT102
);
2086 insch(term
, -def(term
->esc_args
[0], 1));
2087 term
->seen_disp_event
= TRUE
;
2089 case 'c': /* terminal type query */
2090 compatibility(VT100
);
2091 /* This is the response for a VT102 */
2093 ldisc_send(term
->ldisc
, term
->id_string
,
2094 strlen(term
->id_string
), 0);
2096 case 'n': /* cursor position query */
2098 if (term
->esc_args
[0] == 6) {
2100 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2102 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2103 } else if (term
->esc_args
[0] == 5) {
2104 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2108 case 'h': /* toggle modes to high */
2110 compatibility(VT100
);
2113 for (i
= 0; i
< term
->esc_nargs
; i
++)
2114 toggle_mode(term
, term
->esc_args
[i
],
2115 term
->esc_query
, TRUE
);
2120 compatibility(VT100
);
2122 if (term
->esc_nargs
!= 1) break;
2123 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2124 term
->printing
= TRUE
;
2125 term
->only_printing
= !term
->esc_query
;
2126 term
->print_state
= 0;
2127 term_print_setup(term
);
2128 } else if (term
->esc_args
[0] == 4 &&
2130 term_print_finish(term
);
2134 case 'l': /* toggle modes to low */
2136 compatibility(VT100
);
2139 for (i
= 0; i
< term
->esc_nargs
; i
++)
2140 toggle_mode(term
, term
->esc_args
[i
],
2141 term
->esc_query
, FALSE
);
2144 case 'g': /* clear tabs */
2145 compatibility(VT100
);
2146 if (term
->esc_nargs
== 1) {
2147 if (term
->esc_args
[0] == 0) {
2148 term
->tabs
[term
->curs
.x
] = FALSE
;
2149 } else if (term
->esc_args
[0] == 3) {
2151 for (i
= 0; i
< term
->cols
; i
++)
2152 term
->tabs
[i
] = FALSE
;
2156 case 'r': /* set scroll margins */
2157 compatibility(VT100
);
2158 if (term
->esc_nargs
<= 2) {
2160 top
= def(term
->esc_args
[0], 1) - 1;
2161 bot
= (term
->esc_nargs
<= 1
2162 || term
->esc_args
[1] == 0 ?
2164 def(term
->esc_args
[1], term
->rows
)) - 1;
2165 if (bot
>= term
->rows
)
2166 bot
= term
->rows
- 1;
2167 /* VTTEST Bug 9 - if region is less than 2 lines
2168 * don't change region.
2170 if (bot
- top
> 0) {
2175 * I used to think the cursor should be
2176 * placed at the top of the newly marginned
2177 * area. Apparently not: VMS TPU falls over
2180 * Well actually it should for
2183 term
->curs
.y
= (term
->dec_om ?
2186 term
->seen_disp_event
= TRUE
;
2190 case 'm': /* set graphics rendition */
2193 * A VT100 without the AVO only had one
2194 * attribute, either underline or
2195 * reverse video depending on the
2196 * cursor type, this was selected by
2200 * This is sometimes DIM, eg on the
2203 * This is sometimes INVIS various ANSI.
2205 * This like 22 disables BOLD, DIM and INVIS
2207 * The ANSI colours appear on any
2208 * terminal that has colour (obviously)
2209 * but the interaction between sgr0 and
2210 * the colours varies but is usually
2211 * related to the background colour
2212 * erase item. The interaction between
2213 * colour attributes and the mono ones
2214 * is also very implementation
2217 * The 39 and 49 attributes are likely
2218 * to be unimplemented.
2221 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2222 switch (def(term
->esc_args
[i
], 0)) {
2223 case 0: /* restore defaults */
2224 term
->curr_attr
= ATTR_DEFAULT
;
2226 case 1: /* enable bold */
2227 compatibility(VT100AVO
);
2228 term
->curr_attr
|= ATTR_BOLD
;
2230 case 21: /* (enable double underline) */
2231 compatibility(OTHER
);
2232 case 4: /* enable underline */
2233 compatibility(VT100AVO
);
2234 term
->curr_attr
|= ATTR_UNDER
;
2236 case 5: /* enable blink */
2237 compatibility(VT100AVO
);
2238 term
->curr_attr
|= ATTR_BLINK
;
2240 case 7: /* enable reverse video */
2241 term
->curr_attr
|= ATTR_REVERSE
;
2243 case 10: /* SCO acs off */
2244 compatibility(SCOANSI
);
2245 if (term
->cfg
.no_remote_charset
) break;
2246 term
->sco_acs
= 0; break;
2247 case 11: /* SCO acs on */
2248 compatibility(SCOANSI
);
2249 if (term
->cfg
.no_remote_charset
) break;
2250 term
->sco_acs
= 1; break;
2251 case 12: /* SCO acs on, |0x80 */
2252 compatibility(SCOANSI
);
2253 if (term
->cfg
.no_remote_charset
) break;
2254 term
->sco_acs
= 2; break;
2255 case 22: /* disable bold */
2256 compatibility2(OTHER
, VT220
);
2257 term
->curr_attr
&= ~ATTR_BOLD
;
2259 case 24: /* disable underline */
2260 compatibility2(OTHER
, VT220
);
2261 term
->curr_attr
&= ~ATTR_UNDER
;
2263 case 25: /* disable blink */
2264 compatibility2(OTHER
, VT220
);
2265 term
->curr_attr
&= ~ATTR_BLINK
;
2267 case 27: /* disable reverse video */
2268 compatibility2(OTHER
, VT220
);
2269 term
->curr_attr
&= ~ATTR_REVERSE
;
2280 term
->curr_attr
&= ~ATTR_FGMASK
;
2282 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2284 case 39: /* default-foreground */
2285 term
->curr_attr
&= ~ATTR_FGMASK
;
2286 term
->curr_attr
|= ATTR_DEFFG
;
2297 term
->curr_attr
&= ~ATTR_BGMASK
;
2299 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2301 case 49: /* default-background */
2302 term
->curr_attr
&= ~ATTR_BGMASK
;
2303 term
->curr_attr
|= ATTR_DEFBG
;
2308 term
->erase_char
= (' ' | ATTR_ASCII
|
2314 case 's': /* save cursor */
2315 save_cursor(term
, TRUE
);
2317 case 'u': /* restore cursor */
2318 save_cursor(term
, FALSE
);
2319 term
->seen_disp_event
= TRUE
;
2321 case 't': /* set page size - ie window height */
2323 * VT340/VT420 sequence DECSLPP, DEC only allows values
2324 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2325 * illegal values (eg first arg 1..9) for window changing
2328 if (term
->esc_nargs
<= 1
2329 && (term
->esc_args
[0] < 1 ||
2330 term
->esc_args
[0] >= 24)) {
2331 compatibility(VT340TEXT
);
2332 if (!term
->cfg
.no_remote_resize
)
2333 request_resize(term
->frontend
, term
->cols
,
2334 def(term
->esc_args
[0], 24));
2336 } else if (term
->esc_nargs
>= 1 &&
2337 term
->esc_args
[0] >= 1 &&
2338 term
->esc_args
[0] < 24) {
2339 compatibility(OTHER
);
2341 switch (term
->esc_args
[0]) {
2345 set_iconic(term
->frontend
, FALSE
);
2348 set_iconic(term
->frontend
, TRUE
);
2351 if (term
->esc_nargs
>= 3) {
2352 if (!term
->cfg
.no_remote_resize
)
2353 move_window(term
->frontend
,
2354 def(term
->esc_args
[1], 0),
2355 def(term
->esc_args
[2], 0));
2359 /* We should resize the window to a given
2360 * size in pixels here, but currently our
2361 * resizing code isn't healthy enough to
2366 set_zorder(term
->frontend
, TRUE
);
2369 /* move to bottom */
2370 set_zorder(term
->frontend
, FALSE
);
2373 refresh_window(term
->frontend
);
2376 if (term
->esc_nargs
>= 3) {
2377 if (!term
->cfg
.no_remote_resize
)
2378 request_resize(term
->frontend
,
2379 def(term
->esc_args
[2], term
->cfg
.width
),
2380 def(term
->esc_args
[1], term
->cfg
.height
));
2384 if (term
->esc_nargs
>= 2)
2385 set_zoomed(term
->frontend
,
2391 ldisc_send(term
->ldisc
,
2392 is_iconic(term
->frontend
) ?
2393 "\033[1t" : "\033[2t", 4, 0);
2397 get_window_pos(term
->frontend
, &x
, &y
);
2398 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2399 ldisc_send(term
->ldisc
, buf
, len
, 0);
2404 get_window_pixels(term
->frontend
, &x
, &y
);
2405 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2406 ldisc_send(term
->ldisc
, buf
, len
, 0);
2411 len
= sprintf(buf
, "\033[8;%d;%dt",
2412 term
->rows
, term
->cols
);
2413 ldisc_send(term
->ldisc
, buf
, len
, 0);
2418 * Hmmm. Strictly speaking we
2419 * should return `the size of the
2420 * screen in characters', but
2421 * that's not easy: (a) window
2422 * furniture being what it is it's
2423 * hard to compute, and (b) in
2424 * resize-font mode maximising the
2425 * window wouldn't change the
2426 * number of characters. *shrug*. I
2427 * think we'll ignore it for the
2428 * moment and see if anyone
2429 * complains, and then ask them
2430 * what they would like it to do.
2435 p
= get_window_title(term
->frontend
, TRUE
);
2437 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2438 ldisc_send(term
->ldisc
, p
, len
, 0);
2439 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2444 p
= get_window_title(term
->frontend
,FALSE
);
2446 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2447 ldisc_send(term
->ldisc
, p
, len
, 0);
2448 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2455 compatibility(SCOANSI
);
2456 scroll(term
, term
->marg_t
, term
->marg_b
,
2457 def(term
->esc_args
[0], 1), TRUE
);
2459 term
->wrapnext
= FALSE
;
2460 term
->seen_disp_event
= TRUE
;
2463 compatibility(SCOANSI
);
2464 scroll(term
, term
->marg_t
, term
->marg_b
,
2465 -def(term
->esc_args
[0], 1), TRUE
);
2467 term
->wrapnext
= FALSE
;
2468 term
->seen_disp_event
= TRUE
;
2470 case ANSI('|', '*'):
2471 /* VT420 sequence DECSNLS
2472 * Set number of lines on screen
2473 * VT420 uses VGA like hardware and can support any size in
2474 * reasonable range (24..49 AIUI) with no default specified.
2476 compatibility(VT420
);
2477 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2478 if (!term
->cfg
.no_remote_resize
)
2479 request_resize(term
->frontend
, term
->cols
,
2480 def(term
->esc_args
[0],
2485 case ANSI('|', '$'):
2486 /* VT340/VT420 sequence DECSCPP
2487 * Set number of columns per page
2488 * Docs imply range is only 80 or 132, but I'll allow any.
2490 compatibility(VT340TEXT
);
2491 if (term
->esc_nargs
<= 1) {
2492 if (!term
->cfg
.no_remote_resize
)
2493 request_resize(term
->frontend
,
2494 def(term
->esc_args
[0],
2495 term
->cfg
.width
), term
->rows
);
2499 case 'X': /* write N spaces w/o moving cursor */
2500 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2501 compatibility(ANSIMIN
);
2503 int n
= def(term
->esc_args
[0], 1);
2505 unsigned long *p
= term
->cpos
;
2506 if (n
> term
->cols
- term
->curs
.x
)
2507 n
= term
->cols
- term
->curs
.x
;
2508 cursplus
= term
->curs
;
2510 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2511 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2512 check_selection(term
, term
->curs
, cursplus
);
2514 *p
++ = term
->erase_char
;
2515 term
->seen_disp_event
= TRUE
;
2518 case 'x': /* report terminal characteristics */
2519 compatibility(VT100
);
2522 int i
= def(term
->esc_args
[0], 0);
2523 if (i
== 0 || i
== 1) {
2524 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2526 ldisc_send(term
->ldisc
, buf
, 20, 0);
2530 case 'Z': /* BackTab for xterm */
2531 compatibility(OTHER
);
2533 int i
= def(term
->esc_args
[0], 1);
2534 pos old_curs
= term
->curs
;
2536 for(;i
>0 && term
->curs
.x
>0; i
--) {
2539 } while (term
->curs
.x
>0 &&
2540 !term
->tabs
[term
->curs
.x
]);
2543 check_selection(term
, old_curs
, term
->curs
);
2546 case ANSI('L', '='):
2547 compatibility(OTHER
);
2548 term
->use_bce
= (term
->esc_args
[0] <= 0);
2549 term
->erase_char
= ERASE_CHAR
;
2551 term
->erase_char
= (' ' | ATTR_ASCII
|
2553 (ATTR_FGMASK
| ATTR_BGMASK
)));
2555 case ANSI('E', '='):
2556 compatibility(OTHER
);
2557 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2559 case ANSI('p', '"'):
2561 * Allow the host to make this emulator a
2562 * 'perfect' VT102. This first appeared in
2563 * the VT220, but we do need to get back to
2564 * PuTTY mode so I won't check it.
2566 * The arg in 40..42,50 are a PuTTY extension.
2567 * The 2nd arg, 8bit vs 7bit is not checked.
2569 * Setting VT102 mode should also change
2570 * the Fkeys to generate PF* codes as a
2571 * real VT102 has no Fkeys. The VT220 does
2572 * this, F11..F13 become ESC,BS,LF other
2573 * Fkeys send nothing.
2575 * Note ESC c will NOT change this!
2578 switch (term
->esc_args
[0]) {
2580 term
->compatibility_level
&= ~TM_VTXXX
;
2581 term
->compatibility_level
|= TM_VT102
;
2584 term
->compatibility_level
&= ~TM_VTXXX
;
2585 term
->compatibility_level
|= TM_VT220
;
2589 if (term
->esc_args
[0] > 60 &&
2590 term
->esc_args
[0] < 70)
2591 term
->compatibility_level
|= TM_VTXXX
;
2595 term
->compatibility_level
&= TM_VTXXX
;
2598 term
->compatibility_level
= TM_PUTTY
;
2601 term
->compatibility_level
= TM_SCOANSI
;
2605 term
->compatibility_level
= TM_PUTTY
;
2611 /* Change the response to CSI c */
2612 if (term
->esc_args
[0] == 50) {
2615 strcpy(term
->id_string
, "\033[?");
2616 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2618 strcat(term
->id_string
, ";");
2619 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2620 strcat(term
->id_string
, lbuf
);
2622 strcat(term
->id_string
, "c");
2625 /* Is this a good idea ?
2626 * Well we should do a soft reset at this point ...
2628 if (!has_compat(VT420
) && has_compat(VT100
)) {
2629 if (!term
->cfg
.no_remote_resize
) {
2630 if (term
->reset_132
)
2631 request_resize(132, 24);
2633 request_resize(80, 24);
2641 term
->osc_w
= FALSE
;
2643 case 'P': /* Linux palette sequence */
2644 term
->termstate
= SEEN_OSC_P
;
2645 term
->osc_strlen
= 0;
2647 case 'R': /* Linux palette reset */
2648 palette_reset(term
->frontend
);
2649 term_invalidate(term
);
2650 term
->termstate
= TOPLEVEL
;
2652 case 'W': /* word-set */
2653 term
->termstate
= SEEN_OSC_W
;
2666 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2670 * Grotty hack to support xterm and DECterm title
2671 * sequences concurrently.
2673 if (term
->esc_args
[0] == 2) {
2674 term
->esc_args
[0] = 1;
2677 /* else fall through */
2679 term
->termstate
= OSC_STRING
;
2680 term
->osc_strlen
= 0;
2685 * This OSC stuff is EVIL. It takes just one character to get into
2686 * sysline mode and it's not initially obvious how to get out.
2687 * So I've added CR and LF as string aborts.
2688 * This shouldn't effect compatibility as I believe embedded
2689 * control characters are supposed to be interpreted (maybe?)
2690 * and they don't display anything useful anyway.
2694 if (c
== '\012' || c
== '\015') {
2695 term
->termstate
= TOPLEVEL
;
2696 } else if (c
== 0234 || c
== '\007') {
2698 * These characters terminate the string; ST and BEL
2699 * terminate the sequence and trigger instant
2700 * processing of it, whereas ESC goes back to SEEN_ESC
2701 * mode unless it is followed by \, in which case it is
2702 * synonymous with ST in the first place.
2705 term
->termstate
= TOPLEVEL
;
2706 } else if (c
== '\033')
2707 term
->termstate
= OSC_MAYBE_ST
;
2708 else if (term
->osc_strlen
< OSC_STR_MAX
)
2709 term
->osc_string
[term
->osc_strlen
++] = c
;
2713 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2715 if (c
>= '0' && c
<= '9')
2717 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2719 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2722 term
->termstate
= TOPLEVEL
;
2725 term
->osc_string
[term
->osc_strlen
++] = val
;
2726 if (term
->osc_strlen
>= 7) {
2727 palette_set(term
->frontend
, term
->osc_string
[0],
2728 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2729 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2730 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2731 term_invalidate(term
);
2732 term
->termstate
= TOPLEVEL
;
2748 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2751 term
->termstate
= OSC_STRING
;
2752 term
->osc_strlen
= 0;
2756 term
->termstate
= TOPLEVEL
;
2757 term
->seen_disp_event
= TRUE
;
2760 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2763 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2766 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2769 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2772 * From the VT100 Manual
2773 * NOTE: The special graphics characters in the VT100
2774 * are different from those in the VT52
2776 * From VT102 manual:
2777 * 137 _ Blank - Same
2778 * 140 ` Reserved - Humm.
2779 * 141 a Solid rectangle - Similar
2780 * 142 b 1/ - Top half of fraction for the
2781 * 143 c 3/ - subscript numbers below.
2784 * 146 f Degrees - Same
2785 * 147 g Plus or minus - Same
2787 * 151 i Ellipsis (dots)
2790 * 154 l Bar at scan 0
2791 * 155 m Bar at scan 1
2792 * 156 n Bar at scan 2
2793 * 157 o Bar at scan 3 - Similar
2794 * 160 p Bar at scan 4 - Similar
2795 * 161 q Bar at scan 5 - Similar
2796 * 162 r Bar at scan 6 - Same
2797 * 163 s Bar at scan 7 - Similar
2812 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2815 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2818 move(term
, 0, 0, 0);
2821 if (term
->curs
.y
== 0)
2822 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2823 else if (term
->curs
.y
> 0)
2826 term
->wrapnext
= FALSE
;
2829 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2833 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2837 /* XXX Print cursor line */
2840 /* XXX Start controller mode */
2843 /* XXX Stop controller mode */
2847 term
->termstate
= VT52_Y1
;
2851 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2854 term
->app_keypad_keys
= TRUE
;
2857 term
->app_keypad_keys
= FALSE
;
2860 /* XXX This should switch to VT100 mode not current or default
2861 * VT mode. But this will only have effect in a VT220+
2864 term
->vt52_mode
= FALSE
;
2865 term
->blink_is_real
= term
->cfg
.blinktext
;
2869 /* XXX Enter auto print mode */
2872 /* XXX Exit auto print mode */
2875 /* XXX Print screen */
2881 /* compatibility(ATARI) */
2882 move(term
, 0, 0, 0);
2883 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2887 /* compatibility(ATARI) */
2888 if (term
->curs
.y
<= term
->marg_b
)
2889 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2892 /* compatibility(ATARI) */
2893 if (term
->curs
.y
<= term
->marg_b
)
2894 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2897 /* compatibility(ATARI) */
2898 term
->termstate
= VT52_FG
;
2901 /* compatibility(ATARI) */
2902 term
->termstate
= VT52_BG
;
2905 /* compatibility(ATARI) */
2906 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2910 /* compatibility(ATARI) */
2911 term
->cursor_on
= TRUE
;
2914 /* compatibility(ATARI) */
2915 term
->cursor_on
= FALSE
;
2917 /* case 'j': Save cursor position - broken on ST */
2918 /* case 'k': Restore cursor position */
2920 /* compatibility(ATARI) */
2921 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2923 term
->wrapnext
= FALSE
;
2927 /* compatibility(ATARI) */
2928 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2931 /* compatibility(ATARI) */
2932 term
->curr_attr
|= ATTR_REVERSE
;
2935 /* compatibility(ATARI) */
2936 term
->curr_attr
&= ~ATTR_REVERSE
;
2938 case 'v': /* wrap Autowrap on - Wyse style */
2939 /* compatibility(ATARI) */
2942 case 'w': /* Autowrap off */
2943 /* compatibility(ATARI) */
2948 /* compatibility(OTHER) */
2949 term
->vt52_bold
= FALSE
;
2950 term
->curr_attr
= ATTR_DEFAULT
;
2952 term
->erase_char
= (' ' | ATTR_ASCII
|
2954 (ATTR_FGMASK
| ATTR_BGMASK
)));
2957 /* compatibility(VI50) */
2958 term
->curr_attr
|= ATTR_UNDER
;
2961 /* compatibility(VI50) */
2962 term
->curr_attr
&= ~ATTR_UNDER
;
2965 /* compatibility(VI50) */
2966 term
->vt52_bold
= TRUE
;
2967 term
->curr_attr
|= ATTR_BOLD
;
2970 /* compatibility(VI50) */
2971 term
->vt52_bold
= FALSE
;
2972 term
->curr_attr
&= ~ATTR_BOLD
;
2978 term
->termstate
= VT52_Y2
;
2979 move(term
, term
->curs
.x
, c
- ' ', 0);
2982 term
->termstate
= TOPLEVEL
;
2983 move(term
, c
- ' ', term
->curs
.y
, 0);
2988 term
->termstate
= TOPLEVEL
;
2989 term
->curr_attr
&= ~ATTR_FGMASK
;
2990 term
->curr_attr
&= ~ATTR_BOLD
;
2991 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2992 if ((c
& 0x8) || term
->vt52_bold
)
2993 term
->curr_attr
|= ATTR_BOLD
;
2996 term
->erase_char
= (' ' | ATTR_ASCII
|
2998 (ATTR_FGMASK
| ATTR_BGMASK
)));
3001 term
->termstate
= TOPLEVEL
;
3002 term
->curr_attr
&= ~ATTR_BGMASK
;
3003 term
->curr_attr
&= ~ATTR_BLINK
;
3004 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3006 /* Note: bold background */
3008 term
->curr_attr
|= ATTR_BLINK
;
3011 term
->erase_char
= (' ' | ATTR_ASCII
|
3013 (ATTR_FGMASK
| ATTR_BGMASK
)));
3016 default: break; /* placate gcc warning about enum use */
3018 if (term
->selstate
!= NO_SELECTION
) {
3019 pos cursplus
= term
->curs
;
3021 check_selection(term
, term
->curs
, cursplus
);
3025 term_print_flush(term
);
3030 * Compare two lines to determine whether they are sufficiently
3031 * alike to scroll-optimise one to the other. Return the degree of
3034 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3038 for (i
= n
= 0; i
< term
->cols
; i
++)
3039 n
+= (*a
++ == *b
++);
3045 * Given a context, update the window. Out of paranoia, we don't
3046 * allow WM_PAINT responses to do scrolling optimisations.
3048 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3050 int i
, j
, our_curs_y
, our_curs_x
;
3051 unsigned long rv
, cursor
;
3054 long cursor_background
= ERASE_CHAR
;
3055 unsigned long ticks
;
3058 * Check the visual bell state.
3060 if (term
->in_vbell
) {
3061 ticks
= GETTICKCOUNT();
3062 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3063 term
->in_vbell
= FALSE
;
3066 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3069 * screen array, disptop, scrtop,
3071 * cfg.blinkpc, blink_is_real, tblinker,
3072 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3075 /* Has the cursor position or type changed ? */
3076 if (term
->cursor_on
) {
3077 if (term
->has_focus
) {
3078 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3079 cursor
= TATTR_ACTCURS
;
3083 cursor
= TATTR_PASCURS
;
3085 cursor
|= TATTR_RIGHTCURS
;
3088 our_curs_y
= term
->curs
.y
- term
->disptop
;
3091 * Adjust the cursor position in the case where it's
3092 * resting on the right-hand half of a CJK wide character.
3093 * xterm's behaviour here, which seems adequate to me, is
3094 * to display the cursor covering the _whole_ character,
3095 * exactly as if it were one space to the left.
3097 unsigned long *ldata
= lineptr(term
->curs
.y
);
3098 our_curs_x
= term
->curs
.x
;
3099 if (our_curs_x
> 0 &&
3100 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3104 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3106 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3108 if (term
->dispcurs
> term
->disptext
&&
3109 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3110 term
->dispcurs
[-1] |= ATTR_INVALID
;
3111 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3112 term
->dispcurs
[1] |= ATTR_INVALID
;
3113 *term
->dispcurs
|= ATTR_INVALID
;
3116 term
->dispcurs
= NULL
;
3118 /* The normal screen data */
3119 for (i
= 0; i
< term
->rows
; i
++) {
3120 unsigned long *ldata
;
3122 int idx
, dirty_line
, dirty_run
, selected
;
3123 unsigned long attr
= 0;
3124 int updated_line
= 0;
3127 int last_run_dirty
= 0;
3129 scrpos
.y
= i
+ term
->disptop
;
3130 ldata
= lineptr(scrpos
.y
);
3131 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3133 idx
= i
* (term
->cols
+ 1);
3134 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3135 term
->disptext
[idx
+ term
->cols
]);
3136 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3138 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3139 unsigned long tattr
, tchar
;
3140 unsigned long *d
= ldata
+ j
;
3144 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3145 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3146 switch (tchar
& CSET_MASK
) {
3148 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3151 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3154 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3157 tattr
|= (tchar
& CSET_MASK
);
3159 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3162 /* Video reversing things */
3163 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3164 if (term
->seltype
== LEXICOGRAPHIC
)
3165 selected
= (posle(term
->selstart
, scrpos
) &&
3166 poslt(scrpos
, term
->selend
));
3168 selected
= (posPle(term
->selstart
, scrpos
) &&
3169 posPlt(scrpos
, term
->selend
));
3173 ^ (selected ? ATTR_REVERSE
: 0));
3175 /* 'Real' blinking ? */
3176 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3177 if (term
->has_focus
&& term
->tblinker
) {
3179 tattr
&= ~CSET_MASK
;
3182 tattr
&= ~ATTR_BLINK
;
3186 * Check the font we'll _probably_ be using to see if
3187 * the character is wide when we don't want it to be.
3189 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3190 if ((tattr
& ATTR_WIDE
) == 0 &&
3191 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3192 tattr
|= ATTR_NARROW
;
3193 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3194 tattr
|= ATTR_NARROW
;
3196 /* Cursor here ? Save the 'background' */
3197 if (i
== our_curs_y
&& j
== our_curs_x
) {
3198 cursor_background
= tattr
| tchar
;
3199 term
->dispcurs
= term
->disptext
+ idx
;
3202 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3205 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3206 j
- start
>= sizeof(ch
));
3208 /* Special hack for VT100 Linedraw glyphs */
3209 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3210 && tchar
<= 0xBD) break_run
= TRUE
;
3212 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3213 if ((tchar
| tattr
) == term
->disptext
[idx
])
3215 else if (!dirty_run
&& ccount
== 1)
3220 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3221 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3227 if (term
->ucsdata
->dbcs_screenfont
)
3228 last_run_dirty
= dirty_run
;
3229 dirty_run
= dirty_line
;
3232 if ((tchar
| tattr
) != term
->disptext
[idx
])
3234 ch
[ccount
++] = (char) tchar
;
3235 term
->disptext
[idx
] = tchar
| tattr
;
3237 /* If it's a wide char step along to the next one. */
3238 if (tattr
& ATTR_WIDE
) {
3239 if (++j
< term
->cols
) {
3243 * By construction above, the cursor should not
3244 * be on the right-hand half of this character.
3247 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3248 if (term
->disptext
[idx
] != *d
)
3250 term
->disptext
[idx
] = *d
;
3254 if (dirty_run
&& ccount
> 0) {
3255 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3259 /* Cursor on this line ? (and changed) */
3260 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3261 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3262 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3263 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3264 term
->curstype
= cursor
;
3270 * Flick the switch that says if blinking things should be shown or hidden.
3273 void term_blink(Terminal
*term
, int flg
)
3275 long now
, blink_diff
;
3277 now
= GETTICKCOUNT();
3278 blink_diff
= now
- term
->last_tblink
;
3280 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3281 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3282 term
->last_tblink
= now
;
3283 term
->tblinker
= !term
->tblinker
;
3288 term
->last_blink
= now
;
3292 blink_diff
= now
- term
->last_blink
;
3294 /* Make sure the cursor blinks no faster than system blink rate */
3295 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3298 term
->last_blink
= now
;
3299 term
->blinker
= !term
->blinker
;
3303 * Invalidate the whole screen so it will be repainted in full.
3305 void term_invalidate(Terminal
*term
)
3309 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3310 term
->disptext
[i
] = ATTR_INVALID
;
3314 * Paint the window in response to a WM_PAINT message.
3316 void term_paint(Terminal
*term
, Context ctx
,
3317 int left
, int top
, int right
, int bottom
, int immediately
)
3320 if (left
< 0) left
= 0;
3321 if (top
< 0) top
= 0;
3322 if (right
>= term
->cols
) right
= term
->cols
-1;
3323 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3325 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3326 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3327 LATTR_MODE
) == LATTR_NORM
)
3328 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3329 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3331 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3332 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3335 /* This should happen soon enough, also for some reason it sometimes
3336 * fails to actually do anything when re-sizing ... painting the wrong
3340 do_paint (term
, ctx
, FALSE
);
3344 * Attempt to scroll the scrollback. The second parameter gives the
3345 * position we want to scroll to; the first is +1 to denote that
3346 * this position is relative to the beginning of the scrollback, -1
3347 * to denote it is relative to the end, and 0 to denote that it is
3348 * relative to the current position.
3350 void term_scroll(Terminal
*term
, int rel
, int where
)
3352 int sbtop
= -count234(term
->scrollback
);
3353 #ifdef OPTIMISE_SCROLL
3354 int olddisptop
= term
->disptop
;
3356 #endif /* OPTIMISE_SCROLL */
3358 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3359 if (term
->disptop
< sbtop
)
3360 term
->disptop
= sbtop
;
3361 if (term
->disptop
> 0)
3364 #ifdef OPTIMISE_SCROLL
3365 shift
= (term
->disptop
- olddisptop
);
3366 if (shift
< term
->rows
&& shift
> -term
->rows
)
3367 scroll_display(term
, 0, term
->rows
- 1, shift
);
3368 #endif /* OPTIMISE_SCROLL */
3372 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3375 wchar_t *wbptr
; /* where next char goes within workbuf */
3377 int wblen
= 0; /* workbuf len */
3378 int buflen
; /* amount of memory allocated to workbuf */
3380 buflen
= 5120; /* Default size */
3381 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3382 wbptr
= workbuf
; /* start filling here */
3383 old_top_x
= top
.x
; /* needed for rect==1 */
3385 while (poslt(top
, bottom
)) {
3387 unsigned long *ldata
= lineptr(top
.y
);
3391 * nlpos will point at the maximum position on this line we
3392 * should copy up to. So we start it at the end of the
3396 nlpos
.x
= term
->cols
;
3399 * ... move it backwards if there's unused space at the end
3400 * of the line (and also set `nl' if this is the case,
3401 * because in normal selection mode this means we need a
3402 * newline at the end)...
3404 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3405 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3406 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3407 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3408 && poslt(top
, nlpos
))
3410 if (poslt(nlpos
, bottom
))
3412 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3413 /* Ignore the last char on the line in a WRAPPED2 line. */
3418 * ... and then clip it to the terminal x coordinate if
3419 * we're doing rectangular selection. (In this case we
3420 * still did the above, so that copying e.g. the right-hand
3421 * column from a table doesn't fill with spaces on the
3425 if (nlpos
.x
> bottom
.x
)
3427 nl
= (top
.y
< bottom
.y
);
3430 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3433 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3435 wchar_t cbuf
[16], *p
;
3436 int uc
= (ldata
[top
.x
] & 0xFFFF);
3439 if (uc
== UCSWIDE
) {
3444 switch (uc
& CSET_MASK
) {
3446 if (!term
->cfg
.rawcnp
) {
3447 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3451 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3454 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3457 switch (uc
& CSET_MASK
) {
3459 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3462 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3466 set
= (uc
& CSET_MASK
);
3467 c
= (uc
& CHAR_MASK
);
3471 if (DIRECT_FONT(uc
)) {
3472 if (c
>= ' ' && c
!= 0x7F) {
3476 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3478 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3479 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3483 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3487 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3494 for (p
= cbuf
; *p
; p
++) {
3495 /* Enough overhead for trailing NL and nul */
3496 if (wblen
>= buflen
- 16) {
3499 sizeof(wchar_t) * (buflen
+= 100));
3500 wbptr
= workbuf
+ wblen
;
3509 for (i
= 0; i
< sel_nl_sz
; i
++) {
3511 *wbptr
++ = sel_nl
[i
];
3515 top
.x
= rect ? old_top_x
: 0;
3517 #if SELECTION_NUL_TERMINATED
3521 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3522 if (buflen
> 0) /* indicates we allocated this buffer */
3526 void term_copyall(Terminal
*term
)
3529 top
.y
= -count234(term
->scrollback
);
3531 clipme(term
, top
, term
->curs
, 0);
3535 * The wordness array is mainly for deciding the disposition of the
3536 * US-ASCII characters.
3538 static int wordtype(Terminal
*term
, int uc
)
3541 int start
, end
, ctype
;
3543 static const struct ucsword ucs_words
[] = {
3549 0x037e, 0x037e, 1}, /* Greek question mark */
3551 0x0387, 0x0387, 1}, /* Greek ano teleia */
3553 0x055a, 0x055f, 1}, /* Armenian punctuation */
3555 0x0589, 0x0589, 1}, /* Armenian full stop */
3557 0x0700, 0x070d, 1}, /* Syriac punctuation */
3559 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3561 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3563 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3565 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3567 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3569 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3571 0x2000, 0x200a, 0}, /* Various spaces */
3573 0x2070, 0x207f, 2}, /* superscript */
3575 0x2080, 0x208f, 2}, /* subscript */
3577 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3579 0x3000, 0x3000, 0}, /* ideographic space */
3581 0x3001, 0x3020, 1}, /* ideographic punctuation */
3583 0x303f, 0x309f, 3}, /* Hiragana */
3585 0x30a0, 0x30ff, 3}, /* Katakana */
3587 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3589 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3591 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3593 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3595 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3597 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3599 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3601 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3603 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3607 const struct ucsword
*wptr
;
3609 uc
&= (CSET_MASK
| CHAR_MASK
);
3611 switch (uc
& CSET_MASK
) {
3613 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3616 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3619 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3622 switch (uc
& CSET_MASK
) {
3624 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3627 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3631 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3632 * fail as there's such a thing as a double width space. :-(
3634 if (term
->ucsdata
->dbcs_screenfont
&&
3635 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3639 return term
->wordness
[uc
];
3641 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3642 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3650 * Spread the selection outwards according to the selection mode.
3652 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3654 unsigned long *ldata
;
3656 int topy
= -count234(term
->scrollback
);
3658 ldata
= lineptr(p
.y
);
3660 switch (term
->selmode
) {
3663 * In this mode, every character is a separate unit, except
3664 * for runs of spaces at the end of a non-wrapping line.
3666 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3667 unsigned long *q
= ldata
+ term
->cols
;
3668 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3670 if (q
== ldata
+ term
->cols
)
3672 if (p
.x
>= q
- ldata
)
3673 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3678 * In this mode, the units are maximal runs of characters
3679 * whose `wordness' has the same value.
3681 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3684 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3685 term
->cols
-1 : term
->cols
);
3686 if (p
.x
< maxcols
-1) {
3687 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3692 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3693 unsigned long *ldata2
;
3694 ldata2
= lineptr(p
.y
+1);
3695 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3708 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3713 unsigned long *ldata2
;
3717 ldata2
= lineptr(p
.y
-1);
3718 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3719 term
->cols
-1 : term
->cols
);
3720 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3721 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
3736 * In this mode, every line is a unit.
3738 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3744 static void sel_spread(Terminal
*term
)
3746 if (term
->seltype
== LEXICOGRAPHIC
) {
3747 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3748 decpos(term
->selend
);
3749 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3750 incpos(term
->selend
);
3754 void term_do_paste(Terminal
*term
)
3759 get_clip(term
->frontend
, &data
, &len
);
3760 if (data
&& len
> 0) {
3763 term_seen_key_event(term
); /* pasted data counts */
3765 if (term
->paste_buffer
)
3766 sfree(term
->paste_buffer
);
3767 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3768 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3771 while (p
< data
+ len
) {
3772 while (p
< data
+ len
&&
3773 !(p
<= data
+ len
- sel_nl_sz
&&
3774 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3779 for (i
= 0; i
< p
- q
; i
++) {
3780 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3784 if (p
<= data
+ len
- sel_nl_sz
&&
3785 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3786 term
->paste_buffer
[term
->paste_len
++] = '\015';
3792 /* Assume a small paste will be OK in one go. */
3793 if (term
->paste_len
< 256) {
3795 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3796 if (term
->paste_buffer
)
3797 sfree(term
->paste_buffer
);
3798 term
->paste_buffer
= 0;
3799 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3802 get_clip(term
->frontend
, NULL
, NULL
);
3805 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3806 int shift
, int ctrl
, int alt
)
3809 unsigned long *ldata
;
3810 int raw_mouse
= (term
->xterm_mouse
&&
3811 !term
->cfg
.no_mouse_rep
&&
3812 !(term
->cfg
.mouse_override
&& shift
));
3813 int default_seltype
;
3817 if (a
== MA_DRAG
&& !raw_mouse
)
3818 term_scroll(term
, 0, -1);
3820 if (y
>= term
->rows
) {
3822 if (a
== MA_DRAG
&& !raw_mouse
)
3823 term_scroll(term
, 0, +1);
3832 if (x
>= term
->cols
)
3835 selpoint
.y
= y
+ term
->disptop
;
3837 ldata
= lineptr(selpoint
.y
);
3838 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3842 int encstate
= 0, r
, c
;
3849 encstate
= 0x20; /* left button down */
3860 case MBT_WHEEL_DOWN
:
3863 default: break; /* placate gcc warning about enum use */
3867 if (term
->xterm_mouse
== 1)
3873 term
->mouse_is_down
= 0;
3876 if (term
->mouse_is_down
== b
)
3878 term
->mouse_is_down
= b
;
3880 default: break; /* placate gcc warning about enum use */
3889 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3890 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3895 b
= translate_button(term
->frontend
, b
);
3898 * Set the selection type (rectangular or normal) at the start
3899 * of a selection attempt, from the state of Alt.
3901 if (!alt
^ !term
->cfg
.rect_select
)
3902 default_seltype
= RECTANGULAR
;
3904 default_seltype
= LEXICOGRAPHIC
;
3906 if (term
->selstate
== NO_SELECTION
) {
3907 term
->seltype
= default_seltype
;
3910 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3912 term
->selstate
= ABOUT_TO
;
3913 term
->seltype
= default_seltype
;
3914 term
->selanchor
= selpoint
;
3915 term
->selmode
= SM_CHAR
;
3916 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3918 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3919 term
->selstate
= DRAGGING
;
3920 term
->selstart
= term
->selanchor
= selpoint
;
3921 term
->selend
= term
->selstart
;
3922 incpos(term
->selend
);
3924 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3925 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3926 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3928 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3929 if (term
->seltype
== LEXICOGRAPHIC
) {
3931 * For normal selection, we extend by moving
3932 * whichever end of the current selection is closer
3935 if (posdiff(selpoint
, term
->selstart
) <
3936 posdiff(term
->selend
, term
->selstart
) / 2) {
3937 term
->selanchor
= term
->selend
;
3938 decpos(term
->selanchor
);
3940 term
->selanchor
= term
->selstart
;
3944 * For rectangular selection, we have a choice of
3945 * _four_ places to put selanchor and selpoint: the
3946 * four corners of the selection.
3948 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3949 term
->selanchor
.x
= term
->selend
.x
-1;
3951 term
->selanchor
.x
= term
->selstart
.x
;
3953 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3954 term
->selanchor
.y
= term
->selend
.y
;
3956 term
->selanchor
.y
= term
->selstart
.y
;
3958 term
->selstate
= DRAGGING
;
3960 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3961 term
->selanchor
= selpoint
;
3962 term
->selstate
= DRAGGING
;
3963 if (term
->seltype
== LEXICOGRAPHIC
) {
3965 * For normal selection, we set (selstart,selend) to
3966 * (selpoint,selanchor) in some order.
3968 if (poslt(selpoint
, term
->selanchor
)) {
3969 term
->selstart
= selpoint
;
3970 term
->selend
= term
->selanchor
;
3971 incpos(term
->selend
);
3973 term
->selstart
= term
->selanchor
;
3974 term
->selend
= selpoint
;
3975 incpos(term
->selend
);
3979 * For rectangular selection, we may need to
3980 * interchange x and y coordinates (if the user has
3981 * dragged in the -x and +y directions, or vice versa).
3983 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3984 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3985 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3986 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3989 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3990 if (term
->selstate
== DRAGGING
) {
3992 * We've completed a selection. We now transfer the
3993 * data to the clipboard.
3995 clipme(term
, term
->selstart
, term
->selend
,
3996 (term
->seltype
== RECTANGULAR
));
3997 term
->selstate
= SELECTED
;
3999 term
->selstate
= NO_SELECTION
;
4000 } else if (b
== MBT_PASTE
4002 #if MULTICLICK_ONLY_EVENT
4003 || a
== MA_2CLK
|| a
== MA_3CLK
4006 request_paste(term
->frontend
);
4012 void term_nopaste(Terminal
*term
)
4014 if (term
->paste_len
== 0)
4016 sfree(term
->paste_buffer
);
4017 term
->paste_buffer
= NULL
;
4018 term
->paste_len
= 0;
4021 int term_paste_pending(Terminal
*term
)
4023 return term
->paste_len
!= 0;
4026 void term_paste(Terminal
*term
)
4028 long now
, paste_diff
;
4030 if (term
->paste_len
== 0)
4033 /* Don't wait forever to paste */
4034 if (term
->paste_hold
) {
4035 now
= GETTICKCOUNT();
4036 paste_diff
= now
- term
->last_paste
;
4037 if (paste_diff
>= 0 && paste_diff
< 450)
4040 term
->paste_hold
= 0;
4042 while (term
->paste_pos
< term
->paste_len
) {
4044 while (n
+ term
->paste_pos
< term
->paste_len
) {
4045 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4049 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4050 term
->paste_pos
+= n
;
4052 if (term
->paste_pos
< term
->paste_len
) {
4053 term
->paste_hold
= 1;
4057 sfree(term
->paste_buffer
);
4058 term
->paste_buffer
= NULL
;
4059 term
->paste_len
= 0;
4062 static void deselect(Terminal
*term
)
4064 term
->selstate
= NO_SELECTION
;
4065 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4068 void term_deselect(Terminal
*term
)
4074 int term_ldisc(Terminal
*term
, int option
)
4076 if (option
== LD_ECHO
)
4077 return term
->term_echoing
;
4078 if (option
== LD_EDIT
)
4079 return term
->term_editing
;
4084 * from_backend(), to get data from the backend for the terminal.
4086 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
4088 Terminal
*term
= (Terminal
*)vterm
;
4092 bufchain_add(&term
->inbuf
, data
, len
);
4095 * term_out() always completely empties inbuf. Therefore,
4096 * there's no reason at all to return anything other than zero
4097 * from this function, because there _can't_ be a question of
4098 * the remote side needing to wait until term_out() has cleared
4101 * This is a slightly suboptimal way to deal with SSH2 - in
4102 * principle, the window mechanism would allow us to continue
4103 * to accept data on forwarded ports and X connections even
4104 * while the terminal processing was going slowly - but we
4105 * can't do the 100% right thing without moving the terminal
4106 * processing into a separate thread, and that might hurt
4107 * portability. So we manage stdout buffering the old SSH1 way:
4108 * if the terminal processing goes slowly, the whole SSH
4109 * connection stops accepting data until it's ready.
4111 * In practice, I can't imagine this causing serious trouble.
4116 void term_provide_logctx(Terminal
*term
, void *logctx
)
4118 term
->logctx
= logctx
;