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
;
479 line
[newcols
+ 1] = LATTR_NORM
;
481 addpos234(term
->screen
, line
, 0);
483 /* Do this loop to shrink the screen if newrows < rows */
484 for (i
= newrows
; i
< term
->rows
; i
++) {
485 line
= delpos234(term
->screen
, 0);
486 addpos234(term
->scrollback
, line
, sblen
++);
488 assert(count234(term
->screen
) == newrows
);
489 while (sblen
> newsavelines
) {
490 line
= delpos234(term
->scrollback
, 0);
494 assert(count234(term
->scrollback
) <= newsavelines
);
497 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
498 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
499 newdisp
[i
] = ATTR_INVALID
;
500 sfree(term
->disptext
);
501 term
->disptext
= newdisp
;
502 term
->dispcurs
= NULL
;
504 newalt
= newtree234(NULL
);
505 for (i
= 0; i
< newrows
; i
++) {
506 line
= smalloc(TSIZE
* (newcols
+ 2));
508 for (j
= 0; j
< newcols
; j
++)
509 line
[j
+ 1] = term
->erase_char
;
510 line
[newcols
+ 1] = LATTR_NORM
;
511 addpos234(newalt
, line
, i
);
513 if (term
->alt_screen
) {
514 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
516 freetree234(term
->alt_screen
);
518 term
->alt_screen
= newalt
;
520 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
523 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
524 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
528 term
->curs
.y
+= newrows
- term
->rows
;
529 if (term
->curs
.y
< 0)
531 if (term
->curs
.y
>= newrows
)
532 term
->curs
.y
= newrows
- 1;
533 if (term
->curs
.x
>= newcols
)
534 term
->curs
.x
= newcols
- 1;
535 term
->alt_x
= term
->alt_y
= 0;
536 term
->wrapnext
= term
->alt_wnext
= FALSE
;
538 term
->rows
= newrows
;
539 term
->cols
= newcols
;
540 term
->savelines
= newsavelines
;
543 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
548 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
552 * Hand a function and context pointer to the terminal which it can
553 * use to notify a back end of resizes.
555 void term_provide_resize_fn(Terminal
*term
,
556 void (*resize_fn
)(void *, int, int),
559 term
->resize_fn
= resize_fn
;
560 term
->resize_ctx
= resize_ctx
;
561 if (term
->cols
> 0 && term
->rows
> 0)
562 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
566 * Swap screens. If `reset' is TRUE and we have been asked to
567 * switch to the alternate screen, we must bring most of its
568 * configuration from the main screen and erase the contents of the
569 * alternate screen completely. (This is even true if we're already
570 * on it! Blame xterm.)
572 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
578 reset
= FALSE
; /* do no weird resetting if which==0 */
580 if (which
!= term
->alt_which
) {
581 term
->alt_which
= which
;
583 ttr
= term
->alt_screen
;
584 term
->alt_screen
= term
->screen
;
587 if (!reset
&& !keep_cur_pos
)
588 term
->curs
.x
= term
->alt_x
;
591 if (!reset
&& !keep_cur_pos
)
592 term
->curs
.y
= term
->alt_y
;
595 if (!reset
) term
->marg_t
= term
->alt_t
;
598 if (!reset
) term
->marg_b
= term
->alt_b
;
601 if (!reset
) term
->dec_om
= term
->alt_om
;
604 if (!reset
) term
->wrap
= term
->alt_wrap
;
607 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
610 if (!reset
) term
->insert
= term
->alt_ins
;
613 if (!reset
) term
->cset
= term
->alt_cset
;
616 if (!reset
) term
->utf
= term
->alt_utf
;
619 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
620 term
->alt_sco_acs
= t
;
623 if (reset
&& term
->screen
) {
625 * Yes, this _is_ supposed to honour background-colour-erase.
627 erase_lots(term
, FALSE
, TRUE
, TRUE
);
631 * This might not be possible if we're called during
639 * Update the scroll bar.
641 static void update_sbar(Terminal
*term
)
645 nscroll
= count234(term
->scrollback
);
647 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
648 nscroll
+ term
->disptop
, term
->rows
);
652 * Check whether the region bounded by the two pointers intersects
653 * the scroll region, and de-select the on-screen selection if so.
655 static void check_selection(Terminal
*term
, pos from
, pos to
)
657 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
662 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
663 * for backward.) `sb' is TRUE if the scrolling is permitted to
664 * affect the scrollback buffer.
666 * NB this function invalidates all pointers into lines of the
667 * screen data structures. In particular, you MUST call fix_cpos
668 * after calling scroll() and before doing anything else that
669 * uses the cpos shortcut pointer.
671 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
673 unsigned long *line
, *line2
;
674 int i
, seltop
, olddisptop
, shift
;
676 if (topline
!= 0 || term
->alt_which
!= 0)
679 olddisptop
= term
->disptop
;
683 line
= delpos234(term
->screen
, botline
);
684 line
= resizeline(line
, term
->cols
);
685 for (i
= 0; i
< term
->cols
; i
++)
686 line
[i
+ 1] = term
->erase_char
;
687 line
[term
->cols
+ 1] = 0;
688 addpos234(term
->screen
, line
, topline
);
690 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
692 if (term
->selstart
.y
> botline
) {
693 term
->selstart
.y
= botline
;
694 term
->selstart
.x
= 0;
697 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
699 if (term
->selend
.y
> botline
) {
700 term
->selend
.y
= botline
;
709 line
= delpos234(term
->screen
, topline
);
710 if (sb
&& term
->savelines
> 0) {
711 int sblen
= count234(term
->scrollback
);
713 * We must add this line to the scrollback. We'll
714 * remove a line from the top of the scrollback to
715 * replace it, or allocate a new one if the
716 * scrollback isn't full.
718 if (sblen
== term
->savelines
) {
719 sblen
--, line2
= delpos234(term
->scrollback
, 0);
721 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
722 line2
[0] = term
->cols
;
724 addpos234(term
->scrollback
, line
, sblen
);
728 * If the user is currently looking at part of the
729 * scrollback, and they haven't enabled any options
730 * that are going to reset the scrollback as a
731 * result of this movement, then the chances are
732 * they'd like to keep looking at the same line. So
733 * we move their viewpoint at the same rate as the
734 * scroll, at least until their viewpoint hits the
735 * top end of the scrollback buffer, at which point
736 * we don't have the choice any more.
738 * Thanks to Jan Holmen Holsten for the idea and
739 * initial implementation.
741 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
744 line
= resizeline(line
, term
->cols
);
745 for (i
= 0; i
< term
->cols
; i
++)
746 line
[i
+ 1] = term
->erase_char
;
747 line
[term
->cols
+ 1] = LATTR_NORM
;
748 addpos234(term
->screen
, line
, botline
);
751 * If the selection endpoints move into the scrollback,
752 * we keep them moving until they hit the top. However,
753 * of course, if the line _hasn't_ moved into the
754 * scrollback then we don't do this, and cut them off
755 * at the top of the scroll region.
757 * This applies to selstart and selend (for an existing
758 * selection), and also selanchor (for one being
759 * selected as we speak).
761 seltop
= sb ?
-term
->savelines
: topline
;
763 if (term
->selstart
.y
>= seltop
&&
764 term
->selstart
.y
<= botline
) {
766 if (term
->selstart
.y
< seltop
) {
767 term
->selstart
.y
= seltop
;
768 term
->selstart
.x
= 0;
771 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
773 if (term
->selend
.y
< seltop
) {
774 term
->selend
.y
= seltop
;
778 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
780 if (term
->selanchor
.y
< seltop
) {
781 term
->selanchor
.y
= seltop
;
782 term
->selanchor
.x
= 0;
789 #ifdef OPTIMISE_SCROLL
790 shift
+= term
->disptop
- olddisptop
;
791 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
792 scroll_display(term
, topline
, botline
, shift
);
793 #endif /* OPTIMISE_SCROLL */
796 #ifdef OPTIMISE_SCROLL
798 * Scroll the physical display, and our conception of it in disptext.
800 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
802 unsigned long *start
, *end
;
803 int distance
, size
, i
;
805 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
806 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
807 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
808 size
= end
- start
- distance
;
810 memmove(start
, start
+ distance
, size
* TSIZE
);
811 if (term
->dispcurs
>= start
+ distance
&&
812 term
->dispcurs
<= start
+ distance
+ size
)
813 term
->dispcurs
-= distance
;
814 for (i
= 0; i
< distance
; i
++)
815 (start
+ size
)[i
] |= ATTR_INVALID
;
817 memmove(start
+ distance
, start
, size
* TSIZE
);
818 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
819 term
->dispcurs
+= distance
;
820 for (i
= 0; i
< distance
; i
++)
821 start
[i
] |= ATTR_INVALID
;
823 do_scroll(term
->frontend
, topline
, botline
, lines
);
825 #endif /* OPTIMISE_SCROLL */
828 * Move the cursor to a given position, clipping at boundaries. We
829 * may or may not want to clip at the scroll margin: marg_clip is 0
830 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
831 * even _being_ outside the margins.
833 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
840 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
843 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
854 term
->wrapnext
= FALSE
;
858 * Save or restore the cursor and SGR mode.
860 static void save_cursor(Terminal
*term
, int save
)
863 term
->savecurs
= term
->curs
;
864 term
->save_attr
= term
->curr_attr
;
865 term
->save_cset
= term
->cset
;
866 term
->save_utf
= term
->utf
;
867 term
->save_wnext
= term
->wrapnext
;
868 term
->save_csattr
= term
->cset_attr
[term
->cset
];
869 term
->save_sco_acs
= term
->sco_acs
;
871 term
->curs
= term
->savecurs
;
872 /* Make sure the window hasn't shrunk since the save */
873 if (term
->curs
.x
>= term
->cols
)
874 term
->curs
.x
= term
->cols
- 1;
875 if (term
->curs
.y
>= term
->rows
)
876 term
->curs
.y
= term
->rows
- 1;
878 term
->curr_attr
= term
->save_attr
;
879 term
->cset
= term
->save_cset
;
880 term
->utf
= term
->save_utf
;
881 term
->wrapnext
= term
->save_wnext
;
883 * wrapnext might reset to False if the x position is no
884 * longer at the rightmost edge.
886 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
887 term
->wrapnext
= FALSE
;
888 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
889 term
->sco_acs
= term
->save_sco_acs
;
892 term
->erase_char
= (' ' | ATTR_ASCII
|
894 (ATTR_FGMASK
| ATTR_BGMASK
)));
899 * This function is called before doing _anything_ which affects
900 * only part of a line of text. It is used to mark the boundary
901 * between two character positions, and it indicates that some sort
902 * of effect is going to happen on only one side of that boundary.
904 * The effect of this function is to check whether a CJK
905 * double-width character is straddling the boundary, and to remove
906 * it and replace it with two spaces if so. (Of course, one or
907 * other of those spaces is then likely to be replaced with
908 * something else again, as a result of whatever happens next.)
910 * Also, if the boundary is at the right-hand _edge_ of the screen,
911 * it implies something deliberate is being done to the rightmost
912 * column position; hence we must clear LATTR_WRAPPED2.
914 * The input to the function is the coordinates of the _second_
915 * character of the pair.
917 static void check_boundary(Terminal
*term
, int x
, int y
)
919 unsigned long *ldata
;
921 /* Validate input coordinates, just in case. */
922 if (x
== 0 || x
> term
->cols
)
926 if (x
== term
->cols
) {
927 ldata
[x
] &= ~LATTR_WRAPPED2
;
929 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
930 ldata
[x
-1] = ldata
[x
] =
931 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
937 * Erase a large portion of the screen: the whole screen, or the
938 * whole line, or parts thereof.
940 static void erase_lots(Terminal
*term
,
941 int line_only
, int from_begin
, int to_end
)
945 unsigned long *ldata
;
948 start
.y
= term
->curs
.y
;
950 end
.y
= term
->curs
.y
+ 1;
967 if (!from_begin
|| !to_end
)
968 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
969 check_selection(term
, start
, end
);
971 /* Clear screen also forces a full window redraw, just in case. */
972 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
973 term_invalidate(term
);
975 ldata
= lineptr(start
.y
);
976 while (poslt(start
, end
)) {
977 if (start
.x
== term
->cols
) {
979 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
981 ldata
[start
.x
] = LATTR_NORM
;
983 ldata
[start
.x
] = term
->erase_char
;
985 if (incpos(start
) && start
.y
< term
->rows
)
986 ldata
= lineptr(start
.y
);
991 * Insert or delete characters within the current line. n is +ve if
992 * insertion is desired, and -ve for deletion.
994 static void insch(Terminal
*term
, int n
)
996 int dir
= (n
< 0 ?
-1 : +1);
999 unsigned long *ldata
;
1001 n
= (n
< 0 ?
-n
: n
);
1002 if (n
> term
->cols
- term
->curs
.x
)
1003 n
= term
->cols
- term
->curs
.x
;
1004 m
= term
->cols
- term
->curs
.x
- n
;
1005 cursplus
.y
= term
->curs
.y
;
1006 cursplus
.x
= term
->curs
.x
+ n
;
1007 check_selection(term
, term
->curs
, cursplus
);
1008 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1010 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1011 ldata
= lineptr(term
->curs
.y
);
1013 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1015 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1017 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1019 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1024 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1025 * whether the mode is a DEC private one or a normal one.)
1027 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1029 unsigned long ticks
;
1033 case 1: /* application cursor keys */
1034 term
->app_cursor_keys
= state
;
1036 case 2: /* VT52 mode */
1037 term
->vt52_mode
= !state
;
1038 if (term
->vt52_mode
) {
1039 term
->blink_is_real
= FALSE
;
1040 term
->vt52_bold
= FALSE
;
1042 term
->blink_is_real
= term
->cfg
.blinktext
;
1045 case 3: /* 80/132 columns */
1047 if (!term
->cfg
.no_remote_resize
)
1048 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1049 term
->reset_132
= state
;
1051 case 5: /* reverse video */
1053 * Toggle reverse video. If we receive an OFF within the
1054 * visual bell timeout period after an ON, we trigger an
1055 * effective visual bell, so that ESC[?5hESC[?5l will
1056 * always be an actually _visible_ visual bell.
1058 ticks
= GETTICKCOUNT();
1059 /* turn off a previous vbell to avoid inconsistencies */
1060 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1061 term
->in_vbell
= FALSE
;
1062 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1063 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1064 /* If there's no vbell timeout already, or this one lasts
1065 * longer, replace vbell_timeout with ours. */
1066 if (!term
->in_vbell
||
1067 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1069 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1070 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1071 } else if (!term
->rvideo
&& state
) {
1072 /* This is an ON, so we notice the time and save it. */
1073 term
->rvbell_startpoint
= ticks
;
1075 term
->rvideo
= state
;
1076 term
->seen_disp_event
= TRUE
;
1080 case 6: /* DEC origin mode */
1081 term
->dec_om
= state
;
1083 case 7: /* auto wrap */
1086 case 8: /* auto key repeat */
1087 term
->repeat_off
= !state
;
1089 case 10: /* set local edit mode */
1090 term
->term_editing
= state
;
1091 if (term
->ldisc
) /* cause ldisc to notice changes */
1092 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1094 case 25: /* enable/disable cursor */
1095 compatibility2(OTHER
, VT220
);
1096 term
->cursor_on
= state
;
1097 term
->seen_disp_event
= TRUE
;
1099 case 47: /* alternate screen */
1100 compatibility(OTHER
);
1102 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1105 case 1000: /* xterm mouse 1 */
1106 term
->xterm_mouse
= state ?
1 : 0;
1107 set_raw_mouse_mode(term
->frontend
, state
);
1109 case 1002: /* xterm mouse 2 */
1110 term
->xterm_mouse
= state ?
2 : 0;
1111 set_raw_mouse_mode(term
->frontend
, state
);
1113 case 1047: /* alternate screen */
1114 compatibility(OTHER
);
1116 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1119 case 1048: /* save/restore cursor */
1120 save_cursor(term
, state
);
1121 if (!state
) term
->seen_disp_event
= TRUE
;
1123 case 1049: /* cursor & alternate screen */
1125 save_cursor(term
, state
);
1126 if (!state
) term
->seen_disp_event
= TRUE
;
1127 compatibility(OTHER
);
1129 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1131 save_cursor(term
, state
);
1136 case 4: /* set insert mode */
1137 compatibility(VT102
);
1138 term
->insert
= state
;
1140 case 12: /* set echo mode */
1141 term
->term_echoing
= !state
;
1142 if (term
->ldisc
) /* cause ldisc to notice changes */
1143 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1145 case 20: /* Return sends ... */
1146 term
->cr_lf_return
= state
;
1148 case 34: /* Make cursor BIG */
1149 compatibility2(OTHER
, VT220
);
1150 term
->big_cursor
= !state
;
1155 * Process an OSC sequence: set window title or icon name.
1157 static void do_osc(Terminal
*term
)
1160 while (term
->osc_strlen
--)
1161 term
->wordness
[(unsigned char)
1162 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1164 term
->osc_string
[term
->osc_strlen
] = '\0';
1165 switch (term
->esc_args
[0]) {
1168 if (!term
->cfg
.no_remote_wintitle
)
1169 set_icon(term
->frontend
, term
->osc_string
);
1170 if (term
->esc_args
[0] == 1)
1172 /* fall through: parameter 0 means set both */
1175 if (!term
->cfg
.no_remote_wintitle
)
1176 set_title(term
->frontend
, term
->osc_string
);
1183 * ANSI printing routines.
1185 static void term_print_setup(Terminal
*term
)
1187 bufchain_clear(&term
->printer_buf
);
1188 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1190 static void term_print_flush(Terminal
*term
)
1195 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1196 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1199 printer_job_data(term
->print_job
, data
, len
);
1200 bufchain_consume(&term
->printer_buf
, len
);
1203 static void term_print_finish(Terminal
*term
)
1209 if (!term
->printing
&& !term
->only_printing
)
1210 return; /* we need do nothing */
1212 term_print_flush(term
);
1213 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1214 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1216 if (c
== '\033' || c
== '\233') {
1217 bufchain_consume(&term
->printer_buf
, size
);
1220 printer_job_data(term
->print_job
, &c
, 1);
1221 bufchain_consume(&term
->printer_buf
, 1);
1224 printer_finish_job(term
->print_job
);
1225 term
->print_job
= NULL
;
1226 term
->printing
= term
->only_printing
= FALSE
;
1230 * Remove everything currently in `inbuf' and stick it up on the
1231 * in-memory display. There's a big state machine in here to
1232 * process escape sequences...
1234 void term_out(Terminal
*term
)
1237 unsigned char localbuf
[256], *chars
;
1242 chars
= NULL
; /* placate compiler warnings */
1243 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1247 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1248 if (nchars
> sizeof(localbuf
))
1249 nchars
= sizeof(localbuf
);
1250 memcpy(localbuf
, ret
, nchars
);
1251 bufchain_consume(&term
->inbuf
, nchars
);
1253 assert(chars
!= NULL
);
1259 * Optionally log the session traffic to a file. Useful for
1260 * debugging and possibly also useful for actual logging.
1262 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1263 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1269 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1270 * be able to display 8-bit characters, but I'll let that go 'cause
1275 * If we're printing, add the character to the printer
1278 if (term
->printing
) {
1279 bufchain_add(&term
->printer_buf
, &c
, 1);
1282 * If we're in print-only mode, we use a much simpler
1283 * state machine designed only to recognise the ESC[4i
1284 * termination sequence.
1286 if (term
->only_printing
) {
1288 term
->print_state
= 1;
1289 else if (c
== (unsigned char)'\233')
1290 term
->print_state
= 2;
1291 else if (c
== '[' && term
->print_state
== 1)
1292 term
->print_state
= 2;
1293 else if (c
== '4' && term
->print_state
== 2)
1294 term
->print_state
= 3;
1295 else if (c
== 'i' && term
->print_state
== 3)
1296 term
->print_state
= 4;
1298 term
->print_state
= 0;
1299 if (term
->print_state
== 4) {
1300 term_print_finish(term
);
1306 /* First see about all those translations. */
1307 if (term
->termstate
== TOPLEVEL
) {
1309 switch (term
->utf_state
) {
1312 /* UTF-8 must be stateless so we ignore iso2022. */
1313 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1314 c
= term
->ucsdata
->unitab_ctrl
[c
];
1315 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1317 } else if ((c
& 0xe0) == 0xc0) {
1318 term
->utf_size
= term
->utf_state
= 1;
1319 term
->utf_char
= (c
& 0x1f);
1320 } else if ((c
& 0xf0) == 0xe0) {
1321 term
->utf_size
= term
->utf_state
= 2;
1322 term
->utf_char
= (c
& 0x0f);
1323 } else if ((c
& 0xf8) == 0xf0) {
1324 term
->utf_size
= term
->utf_state
= 3;
1325 term
->utf_char
= (c
& 0x07);
1326 } else if ((c
& 0xfc) == 0xf8) {
1327 term
->utf_size
= term
->utf_state
= 4;
1328 term
->utf_char
= (c
& 0x03);
1329 } else if ((c
& 0xfe) == 0xfc) {
1330 term
->utf_size
= term
->utf_state
= 5;
1331 term
->utf_char
= (c
& 0x01);
1342 if ((c
& 0xC0) != 0x80) {
1345 term
->utf_state
= 0;
1348 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1349 if (--term
->utf_state
)
1354 /* Is somebody trying to be evil! */
1356 (c
< 0x800 && term
->utf_size
>= 2) ||
1357 (c
< 0x10000 && term
->utf_size
>= 3) ||
1358 (c
< 0x200000 && term
->utf_size
>= 4) ||
1359 (c
< 0x4000000 && term
->utf_size
>= 5))
1362 /* Unicode line separator and paragraph separator are CR-LF */
1363 if (c
== 0x2028 || c
== 0x2029)
1366 /* High controls are probably a Baaad idea too. */
1370 /* The UTF-16 surrogates are not nice either. */
1371 /* The standard give the option of decoding these:
1372 * I don't want to! */
1373 if (c
>= 0xD800 && c
< 0xE000)
1376 /* ISO 10646 characters now limited to UTF-16 range. */
1380 /* This is currently a TagPhobic application.. */
1381 if (c
>= 0xE0000 && c
<= 0xE007F)
1384 /* U+FEFF is best seen as a null. */
1387 /* But U+FFFE is an error. */
1388 if (c
== 0xFFFE || c
== 0xFFFF)
1391 /* Oops this is a 16bit implementation */
1396 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1397 else if(term
->sco_acs
&&
1398 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1400 if (term
->sco_acs
== 2) c
|= 0x80;
1403 switch (term
->cset_attr
[term
->cset
]) {
1405 * Linedraw characters are different from 'ESC ( B'
1406 * only for a small range. For ones outside that
1407 * range, make sure we use the same font as well as
1408 * the same encoding.
1411 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1412 c
= term
->ucsdata
->unitab_ctrl
[c
];
1414 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1418 /* If UK-ASCII, make the '#' a LineDraw Pound */
1420 c
= '}' | ATTR_LINEDRW
;
1423 /*FALLTHROUGH*/ case ATTR_ASCII
:
1424 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1425 c
= term
->ucsdata
->unitab_ctrl
[c
];
1427 c
= ((unsigned char) c
) | ATTR_ASCII
;
1430 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1436 /* How about C1 controls ? */
1437 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1438 !term
->vt52_mode
&& has_compat(VT220
)) {
1439 term
->termstate
= SEEN_ESC
;
1440 term
->esc_query
= FALSE
;
1441 c
= '@' + (c
& 0x1F);
1444 /* Or the GL control. */
1445 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1446 if (term
->curs
.x
&& !term
->wrapnext
)
1448 term
->wrapnext
= FALSE
;
1450 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1451 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1453 /* Or normal C0 controls. */
1454 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1456 case '\005': /* terminal type query */
1457 /* Strictly speaking this is VT100 but a VT100 defaults to
1458 * no response. Other terminals respond at their option.
1460 * Don't put a CR in the default string as this tends to
1461 * upset some weird software.
1463 * An xterm returns "xterm" (5 characters)
1465 compatibility(ANSIMIN
);
1467 char abuf
[256], *s
, *d
;
1469 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1471 if (*s
>= 'a' && *s
<= 'z')
1472 *d
++ = (*s
- ('a' - 1));
1473 else if ((*s
>= '@' && *s
<= '_') ||
1474 *s
== '?' || (*s
& 0x80))
1479 } else if (*s
== '^') {
1484 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1490 struct beeptime
*newbeep
;
1491 unsigned long ticks
;
1493 ticks
= GETTICKCOUNT();
1495 if (!term
->beep_overloaded
) {
1496 newbeep
= smalloc(sizeof(struct beeptime
));
1497 newbeep
->ticks
= ticks
;
1498 newbeep
->next
= NULL
;
1499 if (!term
->beephead
)
1500 term
->beephead
= newbeep
;
1502 term
->beeptail
->next
= newbeep
;
1503 term
->beeptail
= newbeep
;
1508 * Throw out any beeps that happened more than
1511 while (term
->beephead
&&
1512 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1513 struct beeptime
*tmp
= term
->beephead
;
1514 term
->beephead
= tmp
->next
;
1516 if (!term
->beephead
)
1517 term
->beeptail
= NULL
;
1521 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1522 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1524 * If we're currently overloaded and the
1525 * last beep was more than s seconds ago,
1526 * leave overload mode.
1528 term
->beep_overloaded
= FALSE
;
1529 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1530 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1532 * Now, if we have n or more beeps
1533 * remaining in the queue, go into overload
1536 term
->beep_overloaded
= TRUE
;
1538 term
->lastbeep
= ticks
;
1541 * Perform an actual beep if we're not overloaded.
1543 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1544 beep(term
->frontend
, term
->cfg
.beep
);
1545 if (term
->cfg
.beep
== BELL_VISUAL
) {
1546 term
->in_vbell
= TRUE
;
1547 term
->vbell_startpoint
= ticks
;
1555 if (term
->curs
.x
== 0 &&
1556 (term
->curs
.y
== 0 || term
->wrap
== 0))
1558 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1559 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1560 else if (term
->wrapnext
)
1561 term
->wrapnext
= FALSE
;
1565 term
->seen_disp_event
= TRUE
;
1568 compatibility(VT100
);
1572 compatibility(VT100
);
1576 if (term
->vt52_mode
)
1577 term
->termstate
= VT52_ESC
;
1579 compatibility(ANSIMIN
);
1580 term
->termstate
= SEEN_ESC
;
1581 term
->esc_query
= FALSE
;
1586 term
->wrapnext
= FALSE
;
1588 term
->seen_disp_event
= TRUE
;
1589 term
->paste_hold
= 0;
1591 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1594 if (has_compat(SCOANSI
)) {
1595 move(term
, 0, 0, 0);
1596 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1598 term
->wrapnext
= FALSE
;
1599 term
->seen_disp_event
= 1;
1603 compatibility(VT100
);
1605 if (term
->curs
.y
== term
->marg_b
)
1606 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1607 else if (term
->curs
.y
< term
->rows
- 1)
1609 if (term
->cfg
.lfhascr
)
1612 term
->wrapnext
= FALSE
;
1613 term
->seen_disp_event
= 1;
1614 term
->paste_hold
= 0;
1616 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1620 pos old_curs
= term
->curs
;
1621 unsigned long *ldata
= lineptr(term
->curs
.y
);
1625 } while (term
->curs
.x
< term
->cols
- 1 &&
1626 !term
->tabs
[term
->curs
.x
]);
1628 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1629 if (term
->curs
.x
>= term
->cols
/ 2)
1630 term
->curs
.x
= term
->cols
/ 2 - 1;
1632 if (term
->curs
.x
>= term
->cols
)
1633 term
->curs
.x
= term
->cols
- 1;
1637 check_selection(term
, old_curs
, term
->curs
);
1639 term
->seen_disp_event
= TRUE
;
1643 switch (term
->termstate
) {
1645 /* Only graphic characters get this far;
1646 * ctrls are stripped above */
1647 if (term
->wrapnext
&& term
->wrap
) {
1648 term
->cpos
[1] |= LATTR_WRAPPED
;
1649 if (term
->curs
.y
== term
->marg_b
)
1650 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1651 else if (term
->curs
.y
< term
->rows
- 1)
1655 term
->wrapnext
= FALSE
;
1659 if (term
->selstate
!= NO_SELECTION
) {
1660 pos cursplus
= term
->curs
;
1662 check_selection(term
, term
->curs
, cursplus
);
1664 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1666 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1672 width
= wcwidth((wchar_t) c
);
1676 * If we're about to display a double-width
1677 * character starting in the rightmost
1678 * column, then we do something special
1679 * instead. We must print a space in the
1680 * last column of the screen, then wrap;
1681 * and we also set LATTR_WRAPPED2 which
1682 * instructs subsequent cut-and-pasting not
1683 * only to splice this line to the one
1684 * after it, but to ignore the space in the
1685 * last character position as well.
1686 * (Because what was actually output to the
1687 * terminal was presumably just a sequence
1688 * of CJK characters, and we don't want a
1689 * space to be pasted in the middle of
1690 * those just because they had the
1691 * misfortune to start in the wrong parity
1692 * column. xterm concurs.)
1694 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1695 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1696 if (term
->curs
.x
== term
->cols
-1) {
1697 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1698 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1699 if (term
->curs
.y
== term
->marg_b
)
1700 scroll(term
, term
->marg_t
, term
->marg_b
,
1702 else if (term
->curs
.y
< term
->rows
- 1)
1706 /* Now we must check_boundary again, of course. */
1707 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1708 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1710 *term
->cpos
++ = c
| term
->curr_attr
;
1711 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1715 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1716 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1717 *term
->cpos
++ = c
| term
->curr_attr
;
1724 if (term
->curs
.x
== term
->cols
) {
1727 term
->wrapnext
= TRUE
;
1728 if (term
->wrap
&& term
->vt52_mode
) {
1729 term
->cpos
[1] |= LATTR_WRAPPED
;
1730 if (term
->curs
.y
== term
->marg_b
)
1731 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1732 else if (term
->curs
.y
< term
->rows
- 1)
1736 term
->wrapnext
= FALSE
;
1739 term
->seen_disp_event
= 1;
1744 * This state is virtually identical to SEEN_ESC, with the
1745 * exception that we have an OSC sequence in the pipeline,
1746 * and _if_ we see a backslash, we process it.
1750 term
->termstate
= TOPLEVEL
;
1753 /* else fall through */
1755 if (c
>= ' ' && c
<= '/') {
1756 if (term
->esc_query
)
1757 term
->esc_query
= -1;
1759 term
->esc_query
= c
;
1762 term
->termstate
= TOPLEVEL
;
1763 switch (ANSI(c
, term
->esc_query
)) {
1764 case '[': /* enter CSI mode */
1765 term
->termstate
= SEEN_CSI
;
1766 term
->esc_nargs
= 1;
1767 term
->esc_args
[0] = ARG_DEFAULT
;
1768 term
->esc_query
= FALSE
;
1770 case ']': /* xterm escape sequences */
1771 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1772 compatibility(OTHER
);
1773 term
->termstate
= SEEN_OSC
;
1774 term
->esc_args
[0] = 0;
1776 case '7': /* save cursor */
1777 compatibility(VT100
);
1778 save_cursor(term
, TRUE
);
1780 case '8': /* restore cursor */
1781 compatibility(VT100
);
1782 save_cursor(term
, FALSE
);
1783 term
->seen_disp_event
= TRUE
;
1786 compatibility(VT100
);
1787 term
->app_keypad_keys
= TRUE
;
1790 compatibility(VT100
);
1791 term
->app_keypad_keys
= FALSE
;
1793 case 'D': /* exactly equivalent to LF */
1794 compatibility(VT100
);
1795 if (term
->curs
.y
== term
->marg_b
)
1796 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1797 else if (term
->curs
.y
< term
->rows
- 1)
1800 term
->wrapnext
= FALSE
;
1801 term
->seen_disp_event
= TRUE
;
1803 case 'E': /* exactly equivalent to CR-LF */
1804 compatibility(VT100
);
1806 if (term
->curs
.y
== term
->marg_b
)
1807 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1808 else if (term
->curs
.y
< term
->rows
- 1)
1811 term
->wrapnext
= FALSE
;
1812 term
->seen_disp_event
= TRUE
;
1814 case 'M': /* reverse index - backwards LF */
1815 compatibility(VT100
);
1816 if (term
->curs
.y
== term
->marg_t
)
1817 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1818 else if (term
->curs
.y
> 0)
1821 term
->wrapnext
= FALSE
;
1822 term
->seen_disp_event
= TRUE
;
1824 case 'Z': /* terminal type query */
1825 compatibility(VT100
);
1827 ldisc_send(term
->ldisc
, term
->id_string
,
1828 strlen(term
->id_string
), 0);
1830 case 'c': /* restore power-on settings */
1831 compatibility(VT100
);
1833 if (term
->ldisc
) /* cause ldisc to notice changes */
1834 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1835 if (term
->reset_132
) {
1836 if (!term
->cfg
.no_remote_resize
)
1837 request_resize(term
->frontend
, 80, term
->rows
);
1838 term
->reset_132
= 0;
1842 term
->seen_disp_event
= TRUE
;
1844 case 'H': /* set a tab */
1845 compatibility(VT100
);
1846 term
->tabs
[term
->curs
.x
] = TRUE
;
1849 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1850 compatibility(VT100
);
1852 unsigned long *ldata
;
1856 for (i
= 0; i
< term
->rows
; i
++) {
1858 for (j
= 0; j
< term
->cols
; j
++)
1859 ldata
[j
] = ATTR_DEFAULT
| 'E';
1860 ldata
[term
->cols
] = 0;
1863 term
->seen_disp_event
= TRUE
;
1864 scrtop
.x
= scrtop
.y
= 0;
1866 scrbot
.y
= term
->rows
;
1867 check_selection(term
, scrtop
, scrbot
);
1871 case ANSI('3', '#'):
1872 case ANSI('4', '#'):
1873 case ANSI('5', '#'):
1874 case ANSI('6', '#'):
1875 compatibility(VT100
);
1877 unsigned long nlattr
;
1878 unsigned long *ldata
;
1879 switch (ANSI(c
, term
->esc_query
)) {
1880 case ANSI('3', '#'):
1883 case ANSI('4', '#'):
1886 case ANSI('5', '#'):
1887 nlattr
= LATTR_NORM
;
1889 default: /* spiritually case ANSI('6', '#'): */
1890 nlattr
= LATTR_WIDE
;
1893 ldata
= lineptr(term
->curs
.y
);
1894 ldata
[term
->cols
] &= ~LATTR_MODE
;
1895 ldata
[term
->cols
] |= nlattr
;
1899 case ANSI('A', '('):
1900 compatibility(VT100
);
1901 if (!term
->cfg
.no_remote_charset
)
1902 term
->cset_attr
[0] = ATTR_GBCHR
;
1904 case ANSI('B', '('):
1905 compatibility(VT100
);
1906 if (!term
->cfg
.no_remote_charset
)
1907 term
->cset_attr
[0] = ATTR_ASCII
;
1909 case ANSI('0', '('):
1910 compatibility(VT100
);
1911 if (!term
->cfg
.no_remote_charset
)
1912 term
->cset_attr
[0] = ATTR_LINEDRW
;
1914 case ANSI('U', '('):
1915 compatibility(OTHER
);
1916 if (!term
->cfg
.no_remote_charset
)
1917 term
->cset_attr
[0] = ATTR_SCOACS
;
1920 case ANSI('A', ')'):
1921 compatibility(VT100
);
1922 if (!term
->cfg
.no_remote_charset
)
1923 term
->cset_attr
[1] = ATTR_GBCHR
;
1925 case ANSI('B', ')'):
1926 compatibility(VT100
);
1927 if (!term
->cfg
.no_remote_charset
)
1928 term
->cset_attr
[1] = ATTR_ASCII
;
1930 case ANSI('0', ')'):
1931 compatibility(VT100
);
1932 if (!term
->cfg
.no_remote_charset
)
1933 term
->cset_attr
[1] = ATTR_LINEDRW
;
1935 case ANSI('U', ')'):
1936 compatibility(OTHER
);
1937 if (!term
->cfg
.no_remote_charset
)
1938 term
->cset_attr
[1] = ATTR_SCOACS
;
1941 case ANSI('8', '%'): /* Old Linux code */
1942 case ANSI('G', '%'):
1943 compatibility(OTHER
);
1944 if (!term
->cfg
.no_remote_charset
)
1947 case ANSI('@', '%'):
1948 compatibility(OTHER
);
1949 if (!term
->cfg
.no_remote_charset
)
1955 term
->termstate
= TOPLEVEL
; /* default */
1957 if (term
->esc_nargs
<= ARGS_MAX
) {
1958 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1959 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1960 term
->esc_args
[term
->esc_nargs
- 1] =
1961 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1963 term
->termstate
= SEEN_CSI
;
1964 } else if (c
== ';') {
1965 if (++term
->esc_nargs
<= ARGS_MAX
)
1966 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1967 term
->termstate
= SEEN_CSI
;
1968 } else if (c
< '@') {
1969 if (term
->esc_query
)
1970 term
->esc_query
= -1;
1972 term
->esc_query
= TRUE
;
1974 term
->esc_query
= c
;
1975 term
->termstate
= SEEN_CSI
;
1977 switch (ANSI(c
, term
->esc_query
)) {
1978 case 'A': /* move up N lines */
1979 move(term
, term
->curs
.x
,
1980 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1981 term
->seen_disp_event
= TRUE
;
1983 case 'e': /* move down N lines */
1984 compatibility(ANSI
);
1987 move(term
, term
->curs
.x
,
1988 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1989 term
->seen_disp_event
= TRUE
;
1991 case ANSI('c', '>'): /* report xterm version */
1992 compatibility(OTHER
);
1993 /* this reports xterm version 136 so that VIM can
1994 use the drag messages from the mouse reporting */
1996 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1998 case 'a': /* move right N cols */
1999 compatibility(ANSI
);
2002 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
2004 term
->seen_disp_event
= TRUE
;
2006 case 'D': /* move left N cols */
2007 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2009 term
->seen_disp_event
= TRUE
;
2011 case 'E': /* move down N lines and CR */
2012 compatibility(ANSI
);
2014 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2015 term
->seen_disp_event
= TRUE
;
2017 case 'F': /* move up N lines and CR */
2018 compatibility(ANSI
);
2020 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2021 term
->seen_disp_event
= TRUE
;
2024 case '`': /* set horizontal posn */
2025 compatibility(ANSI
);
2026 move(term
, def(term
->esc_args
[0], 1) - 1,
2028 term
->seen_disp_event
= TRUE
;
2030 case 'd': /* set vertical posn */
2031 compatibility(ANSI
);
2032 move(term
, term
->curs
.x
,
2033 ((term
->dec_om ? term
->marg_t
: 0) +
2034 def(term
->esc_args
[0], 1) - 1),
2035 (term
->dec_om ?
2 : 0));
2036 term
->seen_disp_event
= TRUE
;
2039 case 'f': /* set horz and vert posns at once */
2040 if (term
->esc_nargs
< 2)
2041 term
->esc_args
[1] = ARG_DEFAULT
;
2042 move(term
, def(term
->esc_args
[1], 1) - 1,
2043 ((term
->dec_om ? term
->marg_t
: 0) +
2044 def(term
->esc_args
[0], 1) - 1),
2045 (term
->dec_om ?
2 : 0));
2046 term
->seen_disp_event
= TRUE
;
2048 case 'J': /* erase screen or parts of it */
2050 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2053 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2056 term
->seen_disp_event
= TRUE
;
2058 case 'K': /* erase line or parts of it */
2060 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2063 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2065 term
->seen_disp_event
= TRUE
;
2067 case 'L': /* insert lines */
2068 compatibility(VT102
);
2069 if (term
->curs
.y
<= term
->marg_b
)
2070 scroll(term
, term
->curs
.y
, term
->marg_b
,
2071 -def(term
->esc_args
[0], 1), FALSE
);
2073 term
->seen_disp_event
= TRUE
;
2075 case 'M': /* delete lines */
2076 compatibility(VT102
);
2077 if (term
->curs
.y
<= term
->marg_b
)
2078 scroll(term
, term
->curs
.y
, term
->marg_b
,
2079 def(term
->esc_args
[0], 1),
2082 term
->seen_disp_event
= TRUE
;
2084 case '@': /* insert chars */
2085 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2086 compatibility(VT102
);
2087 insch(term
, def(term
->esc_args
[0], 1));
2088 term
->seen_disp_event
= TRUE
;
2090 case 'P': /* delete chars */
2091 compatibility(VT102
);
2092 insch(term
, -def(term
->esc_args
[0], 1));
2093 term
->seen_disp_event
= TRUE
;
2095 case 'c': /* terminal type query */
2096 compatibility(VT100
);
2097 /* This is the response for a VT102 */
2099 ldisc_send(term
->ldisc
, term
->id_string
,
2100 strlen(term
->id_string
), 0);
2102 case 'n': /* cursor position query */
2104 if (term
->esc_args
[0] == 6) {
2106 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2108 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2109 } else if (term
->esc_args
[0] == 5) {
2110 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2114 case 'h': /* toggle modes to high */
2116 compatibility(VT100
);
2119 for (i
= 0; i
< term
->esc_nargs
; i
++)
2120 toggle_mode(term
, term
->esc_args
[i
],
2121 term
->esc_query
, TRUE
);
2126 compatibility(VT100
);
2128 if (term
->esc_nargs
!= 1) break;
2129 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2130 term
->printing
= TRUE
;
2131 term
->only_printing
= !term
->esc_query
;
2132 term
->print_state
= 0;
2133 term_print_setup(term
);
2134 } else if (term
->esc_args
[0] == 4 &&
2136 term_print_finish(term
);
2140 case 'l': /* toggle modes to low */
2142 compatibility(VT100
);
2145 for (i
= 0; i
< term
->esc_nargs
; i
++)
2146 toggle_mode(term
, term
->esc_args
[i
],
2147 term
->esc_query
, FALSE
);
2150 case 'g': /* clear tabs */
2151 compatibility(VT100
);
2152 if (term
->esc_nargs
== 1) {
2153 if (term
->esc_args
[0] == 0) {
2154 term
->tabs
[term
->curs
.x
] = FALSE
;
2155 } else if (term
->esc_args
[0] == 3) {
2157 for (i
= 0; i
< term
->cols
; i
++)
2158 term
->tabs
[i
] = FALSE
;
2162 case 'r': /* set scroll margins */
2163 compatibility(VT100
);
2164 if (term
->esc_nargs
<= 2) {
2166 top
= def(term
->esc_args
[0], 1) - 1;
2167 bot
= (term
->esc_nargs
<= 1
2168 || term
->esc_args
[1] == 0 ?
2170 def(term
->esc_args
[1], term
->rows
)) - 1;
2171 if (bot
>= term
->rows
)
2172 bot
= term
->rows
- 1;
2173 /* VTTEST Bug 9 - if region is less than 2 lines
2174 * don't change region.
2176 if (bot
- top
> 0) {
2181 * I used to think the cursor should be
2182 * placed at the top of the newly marginned
2183 * area. Apparently not: VMS TPU falls over
2186 * Well actually it should for
2189 term
->curs
.y
= (term
->dec_om ?
2192 term
->seen_disp_event
= TRUE
;
2196 case 'm': /* set graphics rendition */
2199 * A VT100 without the AVO only had one
2200 * attribute, either underline or
2201 * reverse video depending on the
2202 * cursor type, this was selected by
2206 * This is sometimes DIM, eg on the
2209 * This is sometimes INVIS various ANSI.
2211 * This like 22 disables BOLD, DIM and INVIS
2213 * The ANSI colours appear on any
2214 * terminal that has colour (obviously)
2215 * but the interaction between sgr0 and
2216 * the colours varies but is usually
2217 * related to the background colour
2218 * erase item. The interaction between
2219 * colour attributes and the mono ones
2220 * is also very implementation
2223 * The 39 and 49 attributes are likely
2224 * to be unimplemented.
2227 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2228 switch (def(term
->esc_args
[i
], 0)) {
2229 case 0: /* restore defaults */
2230 term
->curr_attr
= ATTR_DEFAULT
;
2232 case 1: /* enable bold */
2233 compatibility(VT100AVO
);
2234 term
->curr_attr
|= ATTR_BOLD
;
2236 case 21: /* (enable double underline) */
2237 compatibility(OTHER
);
2238 case 4: /* enable underline */
2239 compatibility(VT100AVO
);
2240 term
->curr_attr
|= ATTR_UNDER
;
2242 case 5: /* enable blink */
2243 compatibility(VT100AVO
);
2244 term
->curr_attr
|= ATTR_BLINK
;
2246 case 7: /* enable reverse video */
2247 term
->curr_attr
|= ATTR_REVERSE
;
2249 case 10: /* SCO acs off */
2250 compatibility(SCOANSI
);
2251 if (term
->cfg
.no_remote_charset
) break;
2252 term
->sco_acs
= 0; break;
2253 case 11: /* SCO acs on */
2254 compatibility(SCOANSI
);
2255 if (term
->cfg
.no_remote_charset
) break;
2256 term
->sco_acs
= 1; break;
2257 case 12: /* SCO acs on, |0x80 */
2258 compatibility(SCOANSI
);
2259 if (term
->cfg
.no_remote_charset
) break;
2260 term
->sco_acs
= 2; break;
2261 case 22: /* disable bold */
2262 compatibility2(OTHER
, VT220
);
2263 term
->curr_attr
&= ~ATTR_BOLD
;
2265 case 24: /* disable underline */
2266 compatibility2(OTHER
, VT220
);
2267 term
->curr_attr
&= ~ATTR_UNDER
;
2269 case 25: /* disable blink */
2270 compatibility2(OTHER
, VT220
);
2271 term
->curr_attr
&= ~ATTR_BLINK
;
2273 case 27: /* disable reverse video */
2274 compatibility2(OTHER
, VT220
);
2275 term
->curr_attr
&= ~ATTR_REVERSE
;
2286 term
->curr_attr
&= ~ATTR_FGMASK
;
2288 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2298 /* xterm-style bright foreground */
2299 term
->curr_attr
&= ~ATTR_FGMASK
;
2301 ((term
->esc_args
[i
] - 90 + 16)
2304 case 39: /* default-foreground */
2305 term
->curr_attr
&= ~ATTR_FGMASK
;
2306 term
->curr_attr
|= ATTR_DEFFG
;
2317 term
->curr_attr
&= ~ATTR_BGMASK
;
2319 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2329 /* xterm-style bright background */
2330 term
->curr_attr
&= ~ATTR_BGMASK
;
2332 ((term
->esc_args
[i
] - 100 + 16)
2335 case 49: /* default-background */
2336 term
->curr_attr
&= ~ATTR_BGMASK
;
2337 term
->curr_attr
|= ATTR_DEFBG
;
2342 term
->erase_char
= (' ' | ATTR_ASCII
|
2348 case 's': /* save cursor */
2349 save_cursor(term
, TRUE
);
2351 case 'u': /* restore cursor */
2352 save_cursor(term
, FALSE
);
2353 term
->seen_disp_event
= TRUE
;
2355 case 't': /* set page size - ie window height */
2357 * VT340/VT420 sequence DECSLPP, DEC only allows values
2358 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2359 * illegal values (eg first arg 1..9) for window changing
2362 if (term
->esc_nargs
<= 1
2363 && (term
->esc_args
[0] < 1 ||
2364 term
->esc_args
[0] >= 24)) {
2365 compatibility(VT340TEXT
);
2366 if (!term
->cfg
.no_remote_resize
)
2367 request_resize(term
->frontend
, term
->cols
,
2368 def(term
->esc_args
[0], 24));
2370 } else if (term
->esc_nargs
>= 1 &&
2371 term
->esc_args
[0] >= 1 &&
2372 term
->esc_args
[0] < 24) {
2373 compatibility(OTHER
);
2375 switch (term
->esc_args
[0]) {
2379 set_iconic(term
->frontend
, FALSE
);
2382 set_iconic(term
->frontend
, TRUE
);
2385 if (term
->esc_nargs
>= 3) {
2386 if (!term
->cfg
.no_remote_resize
)
2387 move_window(term
->frontend
,
2388 def(term
->esc_args
[1], 0),
2389 def(term
->esc_args
[2], 0));
2393 /* We should resize the window to a given
2394 * size in pixels here, but currently our
2395 * resizing code isn't healthy enough to
2400 set_zorder(term
->frontend
, TRUE
);
2403 /* move to bottom */
2404 set_zorder(term
->frontend
, FALSE
);
2407 refresh_window(term
->frontend
);
2410 if (term
->esc_nargs
>= 3) {
2411 if (!term
->cfg
.no_remote_resize
)
2412 request_resize(term
->frontend
,
2413 def(term
->esc_args
[2], term
->cfg
.width
),
2414 def(term
->esc_args
[1], term
->cfg
.height
));
2418 if (term
->esc_nargs
>= 2)
2419 set_zoomed(term
->frontend
,
2425 ldisc_send(term
->ldisc
,
2426 is_iconic(term
->frontend
) ?
2427 "\033[1t" : "\033[2t", 4, 0);
2431 get_window_pos(term
->frontend
, &x
, &y
);
2432 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2433 ldisc_send(term
->ldisc
, buf
, len
, 0);
2438 get_window_pixels(term
->frontend
, &x
, &y
);
2439 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2440 ldisc_send(term
->ldisc
, buf
, len
, 0);
2445 len
= sprintf(buf
, "\033[8;%d;%dt",
2446 term
->rows
, term
->cols
);
2447 ldisc_send(term
->ldisc
, buf
, len
, 0);
2452 * Hmmm. Strictly speaking we
2453 * should return `the size of the
2454 * screen in characters', but
2455 * that's not easy: (a) window
2456 * furniture being what it is it's
2457 * hard to compute, and (b) in
2458 * resize-font mode maximising the
2459 * window wouldn't change the
2460 * number of characters. *shrug*. I
2461 * think we'll ignore it for the
2462 * moment and see if anyone
2463 * complains, and then ask them
2464 * what they would like it to do.
2469 p
= get_window_title(term
->frontend
, TRUE
);
2471 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2472 ldisc_send(term
->ldisc
, p
, len
, 0);
2473 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2478 p
= get_window_title(term
->frontend
,FALSE
);
2480 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2481 ldisc_send(term
->ldisc
, p
, len
, 0);
2482 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2489 compatibility(SCOANSI
);
2490 scroll(term
, term
->marg_t
, term
->marg_b
,
2491 def(term
->esc_args
[0], 1), TRUE
);
2493 term
->wrapnext
= FALSE
;
2494 term
->seen_disp_event
= TRUE
;
2497 compatibility(SCOANSI
);
2498 scroll(term
, term
->marg_t
, term
->marg_b
,
2499 -def(term
->esc_args
[0], 1), TRUE
);
2501 term
->wrapnext
= FALSE
;
2502 term
->seen_disp_event
= TRUE
;
2504 case ANSI('|', '*'):
2505 /* VT420 sequence DECSNLS
2506 * Set number of lines on screen
2507 * VT420 uses VGA like hardware and can support any size in
2508 * reasonable range (24..49 AIUI) with no default specified.
2510 compatibility(VT420
);
2511 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2512 if (!term
->cfg
.no_remote_resize
)
2513 request_resize(term
->frontend
, term
->cols
,
2514 def(term
->esc_args
[0],
2519 case ANSI('|', '$'):
2520 /* VT340/VT420 sequence DECSCPP
2521 * Set number of columns per page
2522 * Docs imply range is only 80 or 132, but I'll allow any.
2524 compatibility(VT340TEXT
);
2525 if (term
->esc_nargs
<= 1) {
2526 if (!term
->cfg
.no_remote_resize
)
2527 request_resize(term
->frontend
,
2528 def(term
->esc_args
[0],
2529 term
->cfg
.width
), term
->rows
);
2533 case 'X': /* write N spaces w/o moving cursor */
2534 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2535 compatibility(ANSIMIN
);
2537 int n
= def(term
->esc_args
[0], 1);
2539 unsigned long *p
= term
->cpos
;
2540 if (n
> term
->cols
- term
->curs
.x
)
2541 n
= term
->cols
- term
->curs
.x
;
2542 cursplus
= term
->curs
;
2544 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2545 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2546 check_selection(term
, term
->curs
, cursplus
);
2548 *p
++ = term
->erase_char
;
2549 term
->seen_disp_event
= TRUE
;
2552 case 'x': /* report terminal characteristics */
2553 compatibility(VT100
);
2556 int i
= def(term
->esc_args
[0], 0);
2557 if (i
== 0 || i
== 1) {
2558 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2560 ldisc_send(term
->ldisc
, buf
, 20, 0);
2564 case 'Z': /* BackTab for xterm */
2565 compatibility(OTHER
);
2567 int i
= def(term
->esc_args
[0], 1);
2568 pos old_curs
= term
->curs
;
2570 for(;i
>0 && term
->curs
.x
>0; i
--) {
2573 } while (term
->curs
.x
>0 &&
2574 !term
->tabs
[term
->curs
.x
]);
2577 check_selection(term
, old_curs
, term
->curs
);
2580 case ANSI('L', '='):
2581 compatibility(OTHER
);
2582 term
->use_bce
= (term
->esc_args
[0] <= 0);
2583 term
->erase_char
= ERASE_CHAR
;
2585 term
->erase_char
= (' ' | ATTR_ASCII
|
2587 (ATTR_FGMASK
| ATTR_BGMASK
)));
2589 case ANSI('E', '='):
2590 compatibility(OTHER
);
2591 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2593 case ANSI('p', '"'):
2595 * Allow the host to make this emulator a
2596 * 'perfect' VT102. This first appeared in
2597 * the VT220, but we do need to get back to
2598 * PuTTY mode so I won't check it.
2600 * The arg in 40..42,50 are a PuTTY extension.
2601 * The 2nd arg, 8bit vs 7bit is not checked.
2603 * Setting VT102 mode should also change
2604 * the Fkeys to generate PF* codes as a
2605 * real VT102 has no Fkeys. The VT220 does
2606 * this, F11..F13 become ESC,BS,LF other
2607 * Fkeys send nothing.
2609 * Note ESC c will NOT change this!
2612 switch (term
->esc_args
[0]) {
2614 term
->compatibility_level
&= ~TM_VTXXX
;
2615 term
->compatibility_level
|= TM_VT102
;
2618 term
->compatibility_level
&= ~TM_VTXXX
;
2619 term
->compatibility_level
|= TM_VT220
;
2623 if (term
->esc_args
[0] > 60 &&
2624 term
->esc_args
[0] < 70)
2625 term
->compatibility_level
|= TM_VTXXX
;
2629 term
->compatibility_level
&= TM_VTXXX
;
2632 term
->compatibility_level
= TM_PUTTY
;
2635 term
->compatibility_level
= TM_SCOANSI
;
2639 term
->compatibility_level
= TM_PUTTY
;
2645 /* Change the response to CSI c */
2646 if (term
->esc_args
[0] == 50) {
2649 strcpy(term
->id_string
, "\033[?");
2650 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2652 strcat(term
->id_string
, ";");
2653 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2654 strcat(term
->id_string
, lbuf
);
2656 strcat(term
->id_string
, "c");
2659 /* Is this a good idea ?
2660 * Well we should do a soft reset at this point ...
2662 if (!has_compat(VT420
) && has_compat(VT100
)) {
2663 if (!term
->cfg
.no_remote_resize
) {
2664 if (term
->reset_132
)
2665 request_resize(132, 24);
2667 request_resize(80, 24);
2675 term
->osc_w
= FALSE
;
2677 case 'P': /* Linux palette sequence */
2678 term
->termstate
= SEEN_OSC_P
;
2679 term
->osc_strlen
= 0;
2681 case 'R': /* Linux palette reset */
2682 palette_reset(term
->frontend
);
2683 term_invalidate(term
);
2684 term
->termstate
= TOPLEVEL
;
2686 case 'W': /* word-set */
2687 term
->termstate
= SEEN_OSC_W
;
2700 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2704 * Grotty hack to support xterm and DECterm title
2705 * sequences concurrently.
2707 if (term
->esc_args
[0] == 2) {
2708 term
->esc_args
[0] = 1;
2711 /* else fall through */
2713 term
->termstate
= OSC_STRING
;
2714 term
->osc_strlen
= 0;
2719 * This OSC stuff is EVIL. It takes just one character to get into
2720 * sysline mode and it's not initially obvious how to get out.
2721 * So I've added CR and LF as string aborts.
2722 * This shouldn't effect compatibility as I believe embedded
2723 * control characters are supposed to be interpreted (maybe?)
2724 * and they don't display anything useful anyway.
2728 if (c
== '\012' || c
== '\015') {
2729 term
->termstate
= TOPLEVEL
;
2730 } else if (c
== 0234 || c
== '\007') {
2732 * These characters terminate the string; ST and BEL
2733 * terminate the sequence and trigger instant
2734 * processing of it, whereas ESC goes back to SEEN_ESC
2735 * mode unless it is followed by \, in which case it is
2736 * synonymous with ST in the first place.
2739 term
->termstate
= TOPLEVEL
;
2740 } else if (c
== '\033')
2741 term
->termstate
= OSC_MAYBE_ST
;
2742 else if (term
->osc_strlen
< OSC_STR_MAX
)
2743 term
->osc_string
[term
->osc_strlen
++] = c
;
2747 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2749 if (c
>= '0' && c
<= '9')
2751 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2753 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2756 term
->termstate
= TOPLEVEL
;
2759 term
->osc_string
[term
->osc_strlen
++] = val
;
2760 if (term
->osc_strlen
>= 7) {
2761 palette_set(term
->frontend
, term
->osc_string
[0],
2762 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2763 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2764 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2765 term_invalidate(term
);
2766 term
->termstate
= TOPLEVEL
;
2782 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2785 term
->termstate
= OSC_STRING
;
2786 term
->osc_strlen
= 0;
2790 term
->termstate
= TOPLEVEL
;
2791 term
->seen_disp_event
= TRUE
;
2794 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2797 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2800 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2803 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2806 * From the VT100 Manual
2807 * NOTE: The special graphics characters in the VT100
2808 * are different from those in the VT52
2810 * From VT102 manual:
2811 * 137 _ Blank - Same
2812 * 140 ` Reserved - Humm.
2813 * 141 a Solid rectangle - Similar
2814 * 142 b 1/ - Top half of fraction for the
2815 * 143 c 3/ - subscript numbers below.
2818 * 146 f Degrees - Same
2819 * 147 g Plus or minus - Same
2821 * 151 i Ellipsis (dots)
2824 * 154 l Bar at scan 0
2825 * 155 m Bar at scan 1
2826 * 156 n Bar at scan 2
2827 * 157 o Bar at scan 3 - Similar
2828 * 160 p Bar at scan 4 - Similar
2829 * 161 q Bar at scan 5 - Similar
2830 * 162 r Bar at scan 6 - Same
2831 * 163 s Bar at scan 7 - Similar
2846 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2849 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2852 move(term
, 0, 0, 0);
2855 if (term
->curs
.y
== 0)
2856 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2857 else if (term
->curs
.y
> 0)
2860 term
->wrapnext
= FALSE
;
2863 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2867 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2871 /* XXX Print cursor line */
2874 /* XXX Start controller mode */
2877 /* XXX Stop controller mode */
2881 term
->termstate
= VT52_Y1
;
2885 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2888 term
->app_keypad_keys
= TRUE
;
2891 term
->app_keypad_keys
= FALSE
;
2894 /* XXX This should switch to VT100 mode not current or default
2895 * VT mode. But this will only have effect in a VT220+
2898 term
->vt52_mode
= FALSE
;
2899 term
->blink_is_real
= term
->cfg
.blinktext
;
2903 /* XXX Enter auto print mode */
2906 /* XXX Exit auto print mode */
2909 /* XXX Print screen */
2915 /* compatibility(ATARI) */
2916 move(term
, 0, 0, 0);
2917 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2921 /* compatibility(ATARI) */
2922 if (term
->curs
.y
<= term
->marg_b
)
2923 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2926 /* compatibility(ATARI) */
2927 if (term
->curs
.y
<= term
->marg_b
)
2928 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2931 /* compatibility(ATARI) */
2932 term
->termstate
= VT52_FG
;
2935 /* compatibility(ATARI) */
2936 term
->termstate
= VT52_BG
;
2939 /* compatibility(ATARI) */
2940 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2944 /* compatibility(ATARI) */
2945 term
->cursor_on
= TRUE
;
2948 /* compatibility(ATARI) */
2949 term
->cursor_on
= FALSE
;
2951 /* case 'j': Save cursor position - broken on ST */
2952 /* case 'k': Restore cursor position */
2954 /* compatibility(ATARI) */
2955 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2957 term
->wrapnext
= FALSE
;
2961 /* compatibility(ATARI) */
2962 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2965 /* compatibility(ATARI) */
2966 term
->curr_attr
|= ATTR_REVERSE
;
2969 /* compatibility(ATARI) */
2970 term
->curr_attr
&= ~ATTR_REVERSE
;
2972 case 'v': /* wrap Autowrap on - Wyse style */
2973 /* compatibility(ATARI) */
2976 case 'w': /* Autowrap off */
2977 /* compatibility(ATARI) */
2982 /* compatibility(OTHER) */
2983 term
->vt52_bold
= FALSE
;
2984 term
->curr_attr
= ATTR_DEFAULT
;
2986 term
->erase_char
= (' ' | ATTR_ASCII
|
2988 (ATTR_FGMASK
| ATTR_BGMASK
)));
2991 /* compatibility(VI50) */
2992 term
->curr_attr
|= ATTR_UNDER
;
2995 /* compatibility(VI50) */
2996 term
->curr_attr
&= ~ATTR_UNDER
;
2999 /* compatibility(VI50) */
3000 term
->vt52_bold
= TRUE
;
3001 term
->curr_attr
|= ATTR_BOLD
;
3004 /* compatibility(VI50) */
3005 term
->vt52_bold
= FALSE
;
3006 term
->curr_attr
&= ~ATTR_BOLD
;
3012 term
->termstate
= VT52_Y2
;
3013 move(term
, term
->curs
.x
, c
- ' ', 0);
3016 term
->termstate
= TOPLEVEL
;
3017 move(term
, c
- ' ', term
->curs
.y
, 0);
3022 term
->termstate
= TOPLEVEL
;
3023 term
->curr_attr
&= ~ATTR_FGMASK
;
3024 term
->curr_attr
&= ~ATTR_BOLD
;
3025 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
3026 if ((c
& 0x8) || term
->vt52_bold
)
3027 term
->curr_attr
|= ATTR_BOLD
;
3030 term
->erase_char
= (' ' | ATTR_ASCII
|
3032 (ATTR_FGMASK
| ATTR_BGMASK
)));
3035 term
->termstate
= TOPLEVEL
;
3036 term
->curr_attr
&= ~ATTR_BGMASK
;
3037 term
->curr_attr
&= ~ATTR_BLINK
;
3038 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3040 /* Note: bold background */
3042 term
->curr_attr
|= ATTR_BLINK
;
3045 term
->erase_char
= (' ' | ATTR_ASCII
|
3047 (ATTR_FGMASK
| ATTR_BGMASK
)));
3050 default: break; /* placate gcc warning about enum use */
3052 if (term
->selstate
!= NO_SELECTION
) {
3053 pos cursplus
= term
->curs
;
3055 check_selection(term
, term
->curs
, cursplus
);
3059 term_print_flush(term
);
3064 * Compare two lines to determine whether they are sufficiently
3065 * alike to scroll-optimise one to the other. Return the degree of
3068 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3072 for (i
= n
= 0; i
< term
->cols
; i
++)
3073 n
+= (*a
++ == *b
++);
3079 * Given a context, update the window. Out of paranoia, we don't
3080 * allow WM_PAINT responses to do scrolling optimisations.
3082 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3084 int i
, j
, our_curs_y
, our_curs_x
;
3085 unsigned long rv
, cursor
;
3088 long cursor_background
= ERASE_CHAR
;
3089 unsigned long ticks
;
3092 * Check the visual bell state.
3094 if (term
->in_vbell
) {
3095 ticks
= GETTICKCOUNT();
3096 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3097 term
->in_vbell
= FALSE
;
3100 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3103 * screen array, disptop, scrtop,
3105 * cfg.blinkpc, blink_is_real, tblinker,
3106 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3109 /* Has the cursor position or type changed ? */
3110 if (term
->cursor_on
) {
3111 if (term
->has_focus
) {
3112 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3113 cursor
= TATTR_ACTCURS
;
3117 cursor
= TATTR_PASCURS
;
3119 cursor
|= TATTR_RIGHTCURS
;
3122 our_curs_y
= term
->curs
.y
- term
->disptop
;
3125 * Adjust the cursor position in the case where it's
3126 * resting on the right-hand half of a CJK wide character.
3127 * xterm's behaviour here, which seems adequate to me, is
3128 * to display the cursor covering the _whole_ character,
3129 * exactly as if it were one space to the left.
3131 unsigned long *ldata
= lineptr(term
->curs
.y
);
3132 our_curs_x
= term
->curs
.x
;
3133 if (our_curs_x
> 0 &&
3134 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3138 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3140 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3142 if (term
->dispcurs
> term
->disptext
&&
3143 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3144 term
->dispcurs
[-1] |= ATTR_INVALID
;
3145 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3146 term
->dispcurs
[1] |= ATTR_INVALID
;
3147 *term
->dispcurs
|= ATTR_INVALID
;
3150 term
->dispcurs
= NULL
;
3152 /* The normal screen data */
3153 for (i
= 0; i
< term
->rows
; i
++) {
3154 unsigned long *ldata
;
3156 int idx
, dirty_line
, dirty_run
, selected
;
3157 unsigned long attr
= 0;
3158 int updated_line
= 0;
3161 int last_run_dirty
= 0;
3163 scrpos
.y
= i
+ term
->disptop
;
3164 ldata
= lineptr(scrpos
.y
);
3165 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3167 idx
= i
* (term
->cols
+ 1);
3168 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3169 term
->disptext
[idx
+ term
->cols
]);
3170 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3172 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3173 unsigned long tattr
, tchar
;
3174 unsigned long *d
= ldata
+ j
;
3178 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3179 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3180 switch (tchar
& CSET_MASK
) {
3182 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3185 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3188 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3191 tattr
|= (tchar
& CSET_MASK
);
3193 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3196 /* Video reversing things */
3197 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3198 if (term
->seltype
== LEXICOGRAPHIC
)
3199 selected
= (posle(term
->selstart
, scrpos
) &&
3200 poslt(scrpos
, term
->selend
));
3202 selected
= (posPle(term
->selstart
, scrpos
) &&
3203 posPlt(scrpos
, term
->selend
));
3207 ^ (selected ? ATTR_REVERSE
: 0));
3209 /* 'Real' blinking ? */
3210 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3211 if (term
->has_focus
&& term
->tblinker
) {
3212 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
3214 tattr
&= ~ATTR_BLINK
;
3218 * Check the font we'll _probably_ be using to see if
3219 * the character is wide when we don't want it to be.
3221 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3222 if ((tattr
& ATTR_WIDE
) == 0 &&
3223 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3224 tattr
|= ATTR_NARROW
;
3225 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3226 tattr
|= ATTR_NARROW
;
3228 /* Cursor here ? Save the 'background' */
3229 if (i
== our_curs_y
&& j
== our_curs_x
) {
3230 cursor_background
= tattr
| tchar
;
3231 term
->dispcurs
= term
->disptext
+ idx
;
3234 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3237 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3238 j
- start
>= sizeof(ch
));
3240 /* Special hack for VT100 Linedraw glyphs */
3241 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3242 && tchar
<= 0xBD) break_run
= TRUE
;
3244 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3245 if ((tchar
| tattr
) == term
->disptext
[idx
])
3247 else if (!dirty_run
&& ccount
== 1)
3252 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3253 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3259 if (term
->ucsdata
->dbcs_screenfont
)
3260 last_run_dirty
= dirty_run
;
3261 dirty_run
= dirty_line
;
3264 if ((tchar
| tattr
) != term
->disptext
[idx
])
3266 ch
[ccount
++] = (char) tchar
;
3267 term
->disptext
[idx
] = tchar
| tattr
;
3269 /* If it's a wide char step along to the next one. */
3270 if (tattr
& ATTR_WIDE
) {
3271 if (++j
< term
->cols
) {
3275 * By construction above, the cursor should not
3276 * be on the right-hand half of this character.
3279 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3280 if (term
->disptext
[idx
] != *d
)
3282 term
->disptext
[idx
] = *d
;
3286 if (dirty_run
&& ccount
> 0) {
3287 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3291 /* Cursor on this line ? (and changed) */
3292 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3293 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3294 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3295 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3296 term
->curstype
= cursor
;
3302 * Flick the switch that says if blinking things should be shown or hidden.
3305 void term_blink(Terminal
*term
, int flg
)
3307 long now
, blink_diff
;
3309 now
= GETTICKCOUNT();
3310 blink_diff
= now
- term
->last_tblink
;
3312 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3313 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3314 term
->last_tblink
= now
;
3315 term
->tblinker
= !term
->tblinker
;
3320 term
->last_blink
= now
;
3324 blink_diff
= now
- term
->last_blink
;
3326 /* Make sure the cursor blinks no faster than system blink rate */
3327 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3330 term
->last_blink
= now
;
3331 term
->blinker
= !term
->blinker
;
3335 * Invalidate the whole screen so it will be repainted in full.
3337 void term_invalidate(Terminal
*term
)
3341 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3342 term
->disptext
[i
] = ATTR_INVALID
;
3346 * Paint the window in response to a WM_PAINT message.
3348 void term_paint(Terminal
*term
, Context ctx
,
3349 int left
, int top
, int right
, int bottom
, int immediately
)
3352 if (left
< 0) left
= 0;
3353 if (top
< 0) top
= 0;
3354 if (right
>= term
->cols
) right
= term
->cols
-1;
3355 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3357 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3358 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3359 LATTR_MODE
) == LATTR_NORM
)
3360 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3361 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3363 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3364 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3367 /* This should happen soon enough, also for some reason it sometimes
3368 * fails to actually do anything when re-sizing ... painting the wrong
3372 do_paint (term
, ctx
, FALSE
);
3376 * Attempt to scroll the scrollback. The second parameter gives the
3377 * position we want to scroll to; the first is +1 to denote that
3378 * this position is relative to the beginning of the scrollback, -1
3379 * to denote it is relative to the end, and 0 to denote that it is
3380 * relative to the current position.
3382 void term_scroll(Terminal
*term
, int rel
, int where
)
3384 int sbtop
= -count234(term
->scrollback
);
3385 #ifdef OPTIMISE_SCROLL
3386 int olddisptop
= term
->disptop
;
3388 #endif /* OPTIMISE_SCROLL */
3390 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3391 if (term
->disptop
< sbtop
)
3392 term
->disptop
= sbtop
;
3393 if (term
->disptop
> 0)
3396 #ifdef OPTIMISE_SCROLL
3397 shift
= (term
->disptop
- olddisptop
);
3398 if (shift
< term
->rows
&& shift
> -term
->rows
)
3399 scroll_display(term
, 0, term
->rows
- 1, shift
);
3400 #endif /* OPTIMISE_SCROLL */
3404 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3407 wchar_t *wbptr
; /* where next char goes within workbuf */
3409 int wblen
= 0; /* workbuf len */
3410 int buflen
; /* amount of memory allocated to workbuf */
3412 buflen
= 5120; /* Default size */
3413 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3414 wbptr
= workbuf
; /* start filling here */
3415 old_top_x
= top
.x
; /* needed for rect==1 */
3417 while (poslt(top
, bottom
)) {
3419 unsigned long *ldata
= lineptr(top
.y
);
3423 * nlpos will point at the maximum position on this line we
3424 * should copy up to. So we start it at the end of the
3428 nlpos
.x
= term
->cols
;
3431 * ... move it backwards if there's unused space at the end
3432 * of the line (and also set `nl' if this is the case,
3433 * because in normal selection mode this means we need a
3434 * newline at the end)...
3436 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3437 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3438 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3439 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3440 && poslt(top
, nlpos
))
3442 if (poslt(nlpos
, bottom
))
3444 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3445 /* Ignore the last char on the line in a WRAPPED2 line. */
3450 * ... and then clip it to the terminal x coordinate if
3451 * we're doing rectangular selection. (In this case we
3452 * still did the above, so that copying e.g. the right-hand
3453 * column from a table doesn't fill with spaces on the
3457 if (nlpos
.x
> bottom
.x
)
3459 nl
= (top
.y
< bottom
.y
);
3462 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3465 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3467 wchar_t cbuf
[16], *p
;
3468 int uc
= (ldata
[top
.x
] & 0xFFFF);
3471 if (uc
== UCSWIDE
) {
3476 switch (uc
& CSET_MASK
) {
3478 if (!term
->cfg
.rawcnp
) {
3479 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3483 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3486 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3489 switch (uc
& CSET_MASK
) {
3491 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3494 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3498 set
= (uc
& CSET_MASK
);
3499 c
= (uc
& CHAR_MASK
);
3503 if (DIRECT_FONT(uc
)) {
3504 if (c
>= ' ' && c
!= 0x7F) {
3508 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3510 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3511 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3515 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3519 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3526 for (p
= cbuf
; *p
; p
++) {
3527 /* Enough overhead for trailing NL and nul */
3528 if (wblen
>= buflen
- 16) {
3531 sizeof(wchar_t) * (buflen
+= 100));
3532 wbptr
= workbuf
+ wblen
;
3541 for (i
= 0; i
< sel_nl_sz
; i
++) {
3543 *wbptr
++ = sel_nl
[i
];
3547 top
.x
= rect ? old_top_x
: 0;
3549 #if SELECTION_NUL_TERMINATED
3553 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3554 if (buflen
> 0) /* indicates we allocated this buffer */
3558 void term_copyall(Terminal
*term
)
3561 top
.y
= -count234(term
->scrollback
);
3563 clipme(term
, top
, term
->curs
, 0);
3567 * The wordness array is mainly for deciding the disposition of the
3568 * US-ASCII characters.
3570 static int wordtype(Terminal
*term
, int uc
)
3573 int start
, end
, ctype
;
3575 static const struct ucsword ucs_words
[] = {
3581 0x037e, 0x037e, 1}, /* Greek question mark */
3583 0x0387, 0x0387, 1}, /* Greek ano teleia */
3585 0x055a, 0x055f, 1}, /* Armenian punctuation */
3587 0x0589, 0x0589, 1}, /* Armenian full stop */
3589 0x0700, 0x070d, 1}, /* Syriac punctuation */
3591 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3593 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3595 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3597 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3599 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3601 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3603 0x2000, 0x200a, 0}, /* Various spaces */
3605 0x2070, 0x207f, 2}, /* superscript */
3607 0x2080, 0x208f, 2}, /* subscript */
3609 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3611 0x3000, 0x3000, 0}, /* ideographic space */
3613 0x3001, 0x3020, 1}, /* ideographic punctuation */
3615 0x303f, 0x309f, 3}, /* Hiragana */
3617 0x30a0, 0x30ff, 3}, /* Katakana */
3619 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3621 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3623 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3625 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3627 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3629 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3631 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3633 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3635 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3639 const struct ucsword
*wptr
;
3641 uc
&= (CSET_MASK
| CHAR_MASK
);
3643 switch (uc
& CSET_MASK
) {
3645 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3648 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3651 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3654 switch (uc
& CSET_MASK
) {
3656 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3659 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3663 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3664 * fail as there's such a thing as a double width space. :-(
3666 if (term
->ucsdata
->dbcs_screenfont
&&
3667 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3671 return term
->wordness
[uc
];
3673 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3674 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3682 * Spread the selection outwards according to the selection mode.
3684 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3686 unsigned long *ldata
;
3688 int topy
= -count234(term
->scrollback
);
3690 ldata
= lineptr(p
.y
);
3692 switch (term
->selmode
) {
3695 * In this mode, every character is a separate unit, except
3696 * for runs of spaces at the end of a non-wrapping line.
3698 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3699 unsigned long *q
= ldata
+ term
->cols
;
3700 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3702 if (q
== ldata
+ term
->cols
)
3704 if (p
.x
>= q
- ldata
)
3705 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3710 * In this mode, the units are maximal runs of characters
3711 * whose `wordness' has the same value.
3713 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3716 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3717 term
->cols
-1 : term
->cols
);
3718 if (p
.x
< maxcols
-1) {
3719 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3724 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3725 unsigned long *ldata2
;
3726 ldata2
= lineptr(p
.y
+1);
3727 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3740 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3745 unsigned long *ldata2
;
3749 ldata2
= lineptr(p
.y
-1);
3750 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3751 term
->cols
-1 : term
->cols
);
3752 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3753 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
3768 * In this mode, every line is a unit.
3770 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3776 static void sel_spread(Terminal
*term
)
3778 if (term
->seltype
== LEXICOGRAPHIC
) {
3779 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3780 decpos(term
->selend
);
3781 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3782 incpos(term
->selend
);
3786 void term_do_paste(Terminal
*term
)
3791 get_clip(term
->frontend
, &data
, &len
);
3792 if (data
&& len
> 0) {
3795 term_seen_key_event(term
); /* pasted data counts */
3797 if (term
->paste_buffer
)
3798 sfree(term
->paste_buffer
);
3799 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3800 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3803 while (p
< data
+ len
) {
3804 while (p
< data
+ len
&&
3805 !(p
<= data
+ len
- sel_nl_sz
&&
3806 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3811 for (i
= 0; i
< p
- q
; i
++) {
3812 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3816 if (p
<= data
+ len
- sel_nl_sz
&&
3817 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3818 term
->paste_buffer
[term
->paste_len
++] = '\015';
3824 /* Assume a small paste will be OK in one go. */
3825 if (term
->paste_len
< 256) {
3827 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3828 if (term
->paste_buffer
)
3829 sfree(term
->paste_buffer
);
3830 term
->paste_buffer
= 0;
3831 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3834 get_clip(term
->frontend
, NULL
, NULL
);
3837 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
3838 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
3841 unsigned long *ldata
;
3842 int raw_mouse
= (term
->xterm_mouse
&&
3843 !term
->cfg
.no_mouse_rep
&&
3844 !(term
->cfg
.mouse_override
&& shift
));
3845 int default_seltype
;
3849 if (a
== MA_DRAG
&& !raw_mouse
)
3850 term_scroll(term
, 0, -1);
3852 if (y
>= term
->rows
) {
3854 if (a
== MA_DRAG
&& !raw_mouse
)
3855 term_scroll(term
, 0, +1);
3864 if (x
>= term
->cols
)
3867 selpoint
.y
= y
+ term
->disptop
;
3869 ldata
= lineptr(selpoint
.y
);
3870 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3874 int encstate
= 0, r
, c
;
3881 encstate
= 0x20; /* left button down */
3892 case MBT_WHEEL_DOWN
:
3895 default: break; /* placate gcc warning about enum use */
3899 if (term
->xterm_mouse
== 1)
3905 term
->mouse_is_down
= 0;
3908 if (term
->mouse_is_down
== braw
)
3910 term
->mouse_is_down
= braw
;
3912 default: break; /* placate gcc warning about enum use */
3921 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3922 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3928 * Set the selection type (rectangular or normal) at the start
3929 * of a selection attempt, from the state of Alt.
3931 if (!alt
^ !term
->cfg
.rect_select
)
3932 default_seltype
= RECTANGULAR
;
3934 default_seltype
= LEXICOGRAPHIC
;
3936 if (term
->selstate
== NO_SELECTION
) {
3937 term
->seltype
= default_seltype
;
3940 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
3942 term
->selstate
= ABOUT_TO
;
3943 term
->seltype
= default_seltype
;
3944 term
->selanchor
= selpoint
;
3945 term
->selmode
= SM_CHAR
;
3946 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3948 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3949 term
->selstate
= DRAGGING
;
3950 term
->selstart
= term
->selanchor
= selpoint
;
3951 term
->selend
= term
->selstart
;
3952 incpos(term
->selend
);
3954 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
3955 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3956 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3958 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
3959 term
->selstate
== SELECTED
) {
3960 if (term
->seltype
== LEXICOGRAPHIC
) {
3962 * For normal selection, we extend by moving
3963 * whichever end of the current selection is closer
3966 if (posdiff(selpoint
, term
->selstart
) <
3967 posdiff(term
->selend
, term
->selstart
) / 2) {
3968 term
->selanchor
= term
->selend
;
3969 decpos(term
->selanchor
);
3971 term
->selanchor
= term
->selstart
;
3975 * For rectangular selection, we have a choice of
3976 * _four_ places to put selanchor and selpoint: the
3977 * four corners of the selection.
3979 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3980 term
->selanchor
.x
= term
->selend
.x
-1;
3982 term
->selanchor
.x
= term
->selstart
.x
;
3984 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3985 term
->selanchor
.y
= term
->selend
.y
;
3987 term
->selanchor
.y
= term
->selstart
.y
;
3989 term
->selstate
= DRAGGING
;
3991 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3992 term
->selanchor
= selpoint
;
3993 term
->selstate
= DRAGGING
;
3994 if (term
->seltype
== LEXICOGRAPHIC
) {
3996 * For normal selection, we set (selstart,selend) to
3997 * (selpoint,selanchor) in some order.
3999 if (poslt(selpoint
, term
->selanchor
)) {
4000 term
->selstart
= selpoint
;
4001 term
->selend
= term
->selanchor
;
4002 incpos(term
->selend
);
4004 term
->selstart
= term
->selanchor
;
4005 term
->selend
= selpoint
;
4006 incpos(term
->selend
);
4010 * For rectangular selection, we may need to
4011 * interchange x and y coordinates (if the user has
4012 * dragged in the -x and +y directions, or vice versa).
4014 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
4015 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
4016 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
4017 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
4020 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
4022 if (term
->selstate
== DRAGGING
) {
4024 * We've completed a selection. We now transfer the
4025 * data to the clipboard.
4027 clipme(term
, term
->selstart
, term
->selend
,
4028 (term
->seltype
== RECTANGULAR
));
4029 term
->selstate
= SELECTED
;
4031 term
->selstate
= NO_SELECTION
;
4032 } else if (bcooked
== MBT_PASTE
4034 #if MULTICLICK_ONLY_EVENT
4035 || a
== MA_2CLK
|| a
== MA_3CLK
4038 request_paste(term
->frontend
);
4044 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
4045 unsigned int modifiers
, unsigned int flags
)
4049 int prependesc
= FALSE
;
4053 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
4054 for (i
= 0; i
< tlen
; i
++)
4055 fprintf(stderr
, " %04x", text
[i
]);
4056 fprintf(stderr
, "\n");
4060 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
4063 /* Currently, Meta always just prefixes everything with ESC. */
4064 if (modifiers
& PKM_META
)
4066 modifiers
&= ~PKM_META
;
4069 * Alt is only used for Alt+keypad, which isn't supported yet, so
4072 modifiers
&= ~PKM_ALT
;
4074 /* Standard local function keys */
4075 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
4077 if (keysym
== PK_PAGEUP
)
4078 /* scroll up one page */;
4079 if (keysym
== PK_PAGEDOWN
)
4080 /* scroll down on page */;
4081 if (keysym
== PK_INSERT
)
4082 term_do_paste(term
);
4085 if (keysym
== PK_PAGEUP
)
4086 /* scroll up one line */;
4087 if (keysym
== PK_PAGEDOWN
)
4088 /* scroll down one line */;
4089 /* Control-Numlock for app-keypad mode switch */
4090 if (keysym
== PK_PF1
)
4091 term
->app_keypad_keys
^= 1;
4095 if (modifiers
& PKM_ALT
) {
4096 /* Alt+F4 (close) */
4097 /* Alt+Return (full screen) */
4098 /* Alt+Space (system menu) */
4101 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
4102 text
[0] >= 0x20 && text
[0] <= 0x7e) {
4103 /* ASCII chars + Control */
4104 if (text
[0] >= 0x40 && text
[0] <= 0x5f ||
4105 text
[0] >= 0x61 && text
[0] <= 0x7a)
4109 * Control-2 should return ^@ (0x00), Control-6 should return
4110 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4111 * the DOS keyboard handling did it, and we have nothing better
4112 * to do with the key combo in question, we'll also map
4113 * Control-Backquote to ^\ (0x1C).
4116 case ' ': text
[0] = 0x00; break;
4117 case '-': text
[0] = 0x1f; break;
4118 case '/': text
[0] = 0x1f; break;
4119 case '2': text
[0] = 0x00; break;
4120 case '3': text
[0] = 0x1b; break;
4121 case '4': text
[0] = 0x1c; break;
4122 case '5': text
[0] = 0x1d; break;
4123 case '6': text
[0] = 0x1e; break;
4124 case '7': text
[0] = 0x1f; break;
4125 case '8': text
[0] = 0x7f; break;
4126 case '`': text
[0] = 0x1c; break;
4131 /* Nethack keypad */
4132 if (term
->cfg
.nethack_keypad
) {
4135 case PK_KP1
: c
= 'b'; break;
4136 case PK_KP2
: c
= 'j'; break;
4137 case PK_KP3
: c
= 'n'; break;
4138 case PK_KP4
: c
= 'h'; break;
4139 case PK_KP5
: c
= '.'; break;
4140 case PK_KP6
: c
= 'l'; break;
4141 case PK_KP7
: c
= 'y'; break;
4142 case PK_KP8
: c
= 'k'; break;
4143 case PK_KP9
: c
= 'u'; break;
4147 if (modifiers
& PKM_CONTROL
)
4149 else if (modifiers
& PKM_SHIFT
)
4157 /* Numeric Keypad */
4158 if (PK_ISKEYPAD(keysym
)) {
4162 * In VT400 mode, PFn always emits an escape sequence. In
4163 * Linux and tilde modes, this only happens in app keypad mode.
4165 if (term
->cfg
.funky_type
== FUNKY_VT400
||
4166 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
4167 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
4168 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
4170 case PK_PF1
: xkey
= 'P'; break;
4171 case PK_PF2
: xkey
= 'Q'; break;
4172 case PK_PF3
: xkey
= 'R'; break;
4173 case PK_PF4
: xkey
= 'S'; break;
4176 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
4178 case PK_KP0
: xkey
= 'p'; break;
4179 case PK_KP1
: xkey
= 'q'; break;
4180 case PK_KP2
: xkey
= 'r'; break;
4181 case PK_KP3
: xkey
= 's'; break;
4182 case PK_KP4
: xkey
= 't'; break;
4183 case PK_KP5
: xkey
= 'u'; break;
4184 case PK_KP6
: xkey
= 'v'; break;
4185 case PK_KP7
: xkey
= 'w'; break;
4186 case PK_KP8
: xkey
= 'x'; break;
4187 case PK_KP9
: xkey
= 'y'; break;
4188 case PK_KPDECIMAL
: xkey
= 'n'; break;
4189 case PK_KPENTER
: xkey
= 'M'; break;
4191 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
4193 * xterm can't see the layout of the keypad, so it has
4194 * to rely on the X keysyms returned by the keys.
4195 * Hence, we look at the strings here, not the PuTTY
4196 * keysyms (which describe the layout).
4200 if (modifiers
& PKM_SHIFT
)
4205 case '/': xkey
= 'o'; break;
4206 case '*': xkey
= 'j'; break;
4207 case '-': xkey
= 'm'; break;
4211 * In all other modes, we try to retain the layout of
4212 * the DEC keypad in application mode.
4216 /* This key covers the '-' and ',' keys on a VT220 */
4217 if (modifiers
& PKM_SHIFT
)
4218 xkey
= 'm'; /* VT220 '-' */
4220 xkey
= 'l'; /* VT220 ',' */
4222 case PK_KPMINUS
: xkey
= 'm'; break;
4223 case PK_KPCOMMA
: xkey
= 'l'; break;
4228 if (term
->vt52_mode
) {
4229 if (xkey
>= 'P' && xkey
<= 'S')
4230 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4232 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
4234 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4237 /* Not in application mode -- treat the number pad as arrow keys? */
4238 if ((flags
& PKF_NUMLOCK
) == 0) {
4240 case PK_KP0
: keysym
= PK_INSERT
; break;
4241 case PK_KP1
: keysym
= PK_END
; break;
4242 case PK_KP2
: keysym
= PK_DOWN
; break;
4243 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
4244 case PK_KP4
: keysym
= PK_LEFT
; break;
4245 case PK_KP5
: keysym
= PK_REST
; break;
4246 case PK_KP6
: keysym
= PK_RIGHT
; break;
4247 case PK_KP7
: keysym
= PK_HOME
; break;
4248 case PK_KP8
: keysym
= PK_UP
; break;
4249 case PK_KP9
: keysym
= PK_PAGEUP
; break;
4254 /* Miscellaneous keys */
4261 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
4262 else if (modifiers
== PKM_SHIFT
)
4263 /* We do the opposite of what is configured */
4264 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
4270 else if (modifiers
== PKM_SHIFT
)
4271 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
4274 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4276 if (modifiers
== PKM_CONTROL
)
4281 case PK_KPENTER
: /* Odd keypad modes handled above */
4282 if (modifiers
== 0) {
4284 if (term
->cr_lf_return
)
4290 /* SCO function keys and editing keys */
4291 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
4292 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
4293 static char const codes
[] =
4294 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4295 int index
= keysym
- PK_F1
;
4297 if (modifiers
& PKM_SHIFT
) index
+= 12;
4298 if (modifiers
& PKM_CONTROL
) index
+= 24;
4299 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
4302 if (PK_ISEDITING(keysym
)) {
4306 case PK_DELETE
: *p
++ = 0x7f; goto done
;
4307 case PK_HOME
: xkey
= 'H'; break;
4308 case PK_INSERT
: xkey
= 'L'; break;
4309 case PK_END
: xkey
= 'F'; break;
4310 case PK_PAGEUP
: xkey
= 'I'; break;
4311 case PK_PAGEDOWN
: xkey
= 'G'; break;
4313 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4317 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
4320 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
4321 /* Xterm shuffles these keys, apparently. */
4323 case PK_HOME
: keysym
= PK_INSERT
; break;
4324 case PK_INSERT
: keysym
= PK_HOME
; break;
4325 case PK_DELETE
: keysym
= PK_END
; break;
4326 case PK_END
: keysym
= PK_PAGEUP
; break;
4327 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
4328 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
4333 if (term
->cfg
.rxvt_homeend
&&
4334 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
4335 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
4339 if (term
->vt52_mode
) {
4343 * A real VT52 doesn't have these, and a VT220 doesn't
4344 * send anything for them in VT52 mode.
4347 case PK_HOME
: xkey
= 'H'; break;
4348 case PK_INSERT
: xkey
= 'L'; break;
4349 case PK_DELETE
: xkey
= 'M'; break;
4350 case PK_END
: xkey
= 'E'; break;
4351 case PK_PAGEUP
: xkey
= 'I'; break;
4352 case PK_PAGEDOWN
: xkey
= 'G'; break;
4354 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4359 case PK_HOME
: code
= 1; break;
4360 case PK_INSERT
: code
= 2; break;
4361 case PK_DELETE
: code
= 3; break;
4362 case PK_END
: code
= 4; break;
4363 case PK_PAGEUP
: code
= 5; break;
4364 case PK_PAGEDOWN
: code
= 6; break;
4366 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
4370 if (PK_ISFKEY(keysym
)) {
4371 /* Map Shift+F1-F10 to F11-F20 */
4372 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
4374 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
4376 /* XXX This overrides the XTERM/VT52 mode below */
4378 if (keysym
>= PK_F6
) offt
++;
4379 if (keysym
>= PK_F12
) offt
++;
4380 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
4381 'P' + keysym
- PK_F1
- offt
);
4384 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
4385 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
4388 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
4389 if (term
->vt52_mode
)
4390 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
4392 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
4395 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
4399 if (PK_ISCURSOR(keysym
)) {
4403 case PK_UP
: xkey
= 'A'; break;
4404 case PK_DOWN
: xkey
= 'B'; break;
4405 case PK_RIGHT
: xkey
= 'C'; break;
4406 case PK_LEFT
: xkey
= 'D'; break;
4407 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
4409 if (term
->vt52_mode
)
4410 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4412 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
4414 /* Useful mapping of Ctrl-arrows */
4415 if (modifiers
== PKM_CONTROL
)
4419 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4421 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4427 if (p
> output
|| tlen
> 0) {
4429 * Interrupt an ongoing paste. I'm not sure
4430 * this is sensible, but for the moment it's
4431 * preferable to having to faff about buffering
4437 * We need not bother about stdin backlogs
4438 * here, because in GUI PuTTY we can't do
4439 * anything about it anyway; there's no means
4440 * of asking Windows to hold off on KEYDOWN
4441 * messages. We _have_ to buffer everything
4444 term_seen_key_event(term
);
4448 fprintf(stderr
, "sending ESC\n");
4450 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
4455 fprintf(stderr
, "sending %d bytes:", p
- output
);
4456 for (i
= 0; i
< p
- output
; i
++)
4457 fprintf(stderr
, " %02x", output
[i
]);
4458 fprintf(stderr
, "\n");
4460 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
4461 } else if (tlen
> 0) {
4463 fprintf(stderr
, "sending %d unichars:", tlen
);
4464 for (i
= 0; i
< tlen
; i
++)
4465 fprintf(stderr
, " %04x", text
[i
]);
4466 fprintf(stderr
, "\n");
4468 luni_send(term
->ldisc
, text
, tlen
, 1);
4473 void term_nopaste(Terminal
*term
)
4475 if (term
->paste_len
== 0)
4477 sfree(term
->paste_buffer
);
4478 term
->paste_buffer
= NULL
;
4479 term
->paste_len
= 0;
4482 int term_paste_pending(Terminal
*term
)
4484 return term
->paste_len
!= 0;
4487 void term_paste(Terminal
*term
)
4489 long now
, paste_diff
;
4491 if (term
->paste_len
== 0)
4494 /* Don't wait forever to paste */
4495 if (term
->paste_hold
) {
4496 now
= GETTICKCOUNT();
4497 paste_diff
= now
- term
->last_paste
;
4498 if (paste_diff
>= 0 && paste_diff
< 450)
4501 term
->paste_hold
= 0;
4503 while (term
->paste_pos
< term
->paste_len
) {
4505 while (n
+ term
->paste_pos
< term
->paste_len
) {
4506 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4510 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4511 term
->paste_pos
+= n
;
4513 if (term
->paste_pos
< term
->paste_len
) {
4514 term
->paste_hold
= 1;
4518 sfree(term
->paste_buffer
);
4519 term
->paste_buffer
= NULL
;
4520 term
->paste_len
= 0;
4523 static void deselect(Terminal
*term
)
4525 term
->selstate
= NO_SELECTION
;
4526 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4529 void term_deselect(Terminal
*term
)
4535 int term_ldisc(Terminal
*term
, int option
)
4537 if (option
== LD_ECHO
)
4538 return term
->term_echoing
;
4539 if (option
== LD_EDIT
)
4540 return term
->term_editing
;
4545 * from_backend(), to get data from the backend for the terminal.
4547 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
4549 Terminal
*term
= (Terminal
*)vterm
;
4553 bufchain_add(&term
->inbuf
, data
, len
);
4556 * term_out() always completely empties inbuf. Therefore,
4557 * there's no reason at all to return anything other than zero
4558 * from this function, because there _can't_ be a question of
4559 * the remote side needing to wait until term_out() has cleared
4562 * This is a slightly suboptimal way to deal with SSH2 - in
4563 * principle, the window mechanism would allow us to continue
4564 * to accept data on forwarded ports and X connections even
4565 * while the terminal processing was going slowly - but we
4566 * can't do the 100% right thing without moving the terminal
4567 * processing into a separate thread, and that might hurt
4568 * portability. So we manage stdout buffering the old SSH1 way:
4569 * if the terminal processing goes slowly, the whole SSH
4570 * connection stops accepting data until it's ready.
4572 * In practice, I can't imagine this causing serious trouble.
4577 void term_provide_logctx(Terminal
*term
, void *logctx
)
4579 term
->logctx
= logctx
;