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
= sresize(line
, 2 + cols
, TTYPE
);
104 for (i
= oldlen
; i
< cols
; i
++)
105 line
[i
+ 1] = ERASE_CHAR
;
106 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
113 * Get the number of lines in the scrollback.
115 static int sblines(Terminal
*term
)
117 int sblines
= count234(term
->scrollback
);
118 if (term
->cfg
.erase_to_scrollback
&&
119 term
->alt_which
&& term
->alt_screen
) {
120 sblines
+= term
->alt_sblines
;
126 * Retrieve a line of the screen or of the scrollback, according to
127 * whether the y coordinate is non-negative or negative
130 static unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
132 unsigned long *line
, *newline
;
137 whichtree
= term
->screen
;
141 if (term
->cfg
.erase_to_scrollback
&&
142 term
->alt_which
&& term
->alt_screen
) {
143 altlines
= term
->alt_sblines
;
146 whichtree
= term
->scrollback
;
147 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
149 whichtree
= term
->alt_screen
;
150 treeindex
= y
+ term
->alt_sblines
;
151 /* treeindex = y + count234(term->alt_screen); */
154 line
= index234(whichtree
, treeindex
);
156 /* We assume that we don't screw up and retrieve something out of range. */
157 assert(line
!= NULL
);
159 newline
= resizeline(line
, term
->cols
);
160 if (newline
!= line
) {
161 delpos234(whichtree
, treeindex
);
162 addpos234(whichtree
, newline
, treeindex
);
169 #define lineptr(x) lineptr(term,x,__LINE__)
172 * Set up power-on settings for the terminal.
174 static void power_on(Terminal
*term
)
176 term
->curs
.x
= term
->curs
.y
= 0;
177 term
->alt_x
= term
->alt_y
= 0;
178 term
->savecurs
.x
= term
->savecurs
.y
= 0;
179 term
->alt_t
= term
->marg_t
= 0;
180 if (term
->rows
!= -1)
181 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
183 term
->alt_b
= term
->marg_b
= 0;
184 if (term
->cols
!= -1) {
186 for (i
= 0; i
< term
->cols
; i
++)
187 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
189 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
190 term
->alt_ins
= term
->insert
= FALSE
;
191 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
192 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
193 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
194 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
196 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
197 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
199 term
->in_vbell
= FALSE
;
201 term
->big_cursor
= 0;
202 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
203 term
->term_editing
= term
->term_echoing
= FALSE
;
204 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
205 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
206 term
->use_bce
= term
->cfg
.bce
;
207 term
->blink_is_real
= term
->cfg
.blinktext
;
208 term
->erase_char
= ERASE_CHAR
;
210 term_print_finish(term
);
213 for (i
= 0; i
< 256; i
++)
214 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
217 swap_screen(term
, 1, FALSE
, FALSE
);
218 erase_lots(term
, FALSE
, TRUE
, TRUE
);
219 swap_screen(term
, 0, FALSE
, FALSE
);
220 erase_lots(term
, FALSE
, TRUE
, TRUE
);
225 * Force a screen update.
227 void term_update(Terminal
*term
)
230 ctx
= get_ctx(term
->frontend
);
232 int need_sbar_update
= term
->seen_disp_event
;
233 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
234 term
->disptop
= 0; /* return to main screen */
235 term
->seen_disp_event
= 0;
236 need_sbar_update
= TRUE
;
238 if (need_sbar_update
)
240 do_paint(term
, ctx
, TRUE
);
241 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
247 * Called from front end when a keypress occurs, to trigger
248 * anything magical that needs to happen in that situation.
250 void term_seen_key_event(Terminal
*term
)
253 * On any keypress, clear the bell overload mechanism
254 * completely, on the grounds that large numbers of
255 * beeps coming from deliberate key action are likely
256 * to be intended (e.g. beeps from filename completion
257 * blocking repeatedly).
259 term
->beep_overloaded
= FALSE
;
260 while (term
->beephead
) {
261 struct beeptime
*tmp
= term
->beephead
;
262 term
->beephead
= tmp
->next
;
265 term
->beeptail
= NULL
;
269 * Reset the scrollback on keypress, if we're doing that.
271 if (term
->cfg
.scroll_on_key
) {
272 term
->disptop
= 0; /* return to main screen */
273 term
->seen_disp_event
= 1;
278 * Same as power_on(), but an external function.
280 void term_pwron(Terminal
*term
)
283 if (term
->ldisc
) /* cause ldisc to notice changes */
284 ldisc_send(term
->ldisc
, NULL
, 0, 0);
292 * When the user reconfigures us, we need to check the forbidden-
293 * alternate-screen config option, disable raw mouse mode if the
294 * user has disabled mouse reporting, and abandon a print job if
295 * the user has disabled printing.
297 void term_reconfig(Terminal
*term
, Config
*cfg
)
300 * Before adopting the new config, check all those terminal
301 * settings which control power-on defaults; and if they've
302 * changed, we will modify the current state as well as the
303 * default one. The full list is: Auto wrap mode, DEC Origin
304 * Mode, BCE, blinking text, character classes.
306 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
309 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
310 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
311 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
312 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
314 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
315 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
318 term
->cfg
= *cfg
; /* STRUCTURE COPY */
321 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
323 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
325 term
->use_bce
= term
->cfg
.bce
;
327 term
->blink_is_real
= term
->cfg
.blinktext
;
329 for (i
= 0; i
< 256; i
++)
330 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
332 if (term
->cfg
.no_alt_screen
)
333 swap_screen(term
, 0, FALSE
, FALSE
);
334 if (term
->cfg
.no_mouse_rep
) {
335 term
->xterm_mouse
= 0;
336 set_raw_mouse_mode(term
->frontend
, 0);
338 if (term
->cfg
.no_remote_charset
) {
339 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
340 term
->sco_acs
= term
->alt_sco_acs
= 0;
343 if (!*term
->cfg
.printer
) {
344 term_print_finish(term
);
349 * Clear the scrollback.
351 void term_clrsb(Terminal
*term
)
355 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
358 term
->tempsblines
= 0;
359 term
->alt_sblines
= 0;
364 * Initialise the terminal.
366 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
372 * Allocate a new Terminal structure and initialise the fields
375 term
= snew(Terminal
);
376 term
->frontend
= frontend
;
377 term
->ucsdata
= ucsdata
;
378 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
380 term
->compatibility_level
= TM_PUTTY
;
381 strcpy(term
->id_string
, "\033[?6c");
382 term
->last_blink
= term
->last_tblink
= 0;
383 term
->paste_buffer
= NULL
;
385 term
->last_paste
= 0;
386 bufchain_init(&term
->inbuf
);
387 bufchain_init(&term
->printer_buf
);
388 term
->printing
= term
->only_printing
= FALSE
;
389 term
->print_job
= NULL
;
390 term
->vt52_mode
= FALSE
;
391 term
->cr_lf_return
= FALSE
;
392 term
->seen_disp_event
= FALSE
;
393 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
394 term
->reset_132
= FALSE
;
395 term
->blinker
= term
->tblinker
= 0;
397 term
->repeat_off
= FALSE
;
398 term
->termstate
= TOPLEVEL
;
399 term
->selstate
= NO_SELECTION
;
402 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
403 term
->tempsblines
= 0;
404 term
->alt_sblines
= 0;
406 term
->disptext
= term
->dispcurs
= NULL
;
409 term
->rows
= term
->cols
= -1;
411 term
->beephead
= term
->beeptail
= NULL
;
412 #ifdef OPTIMISE_SCROLL
413 term
->scrollhead
= term
->scrolltail
= NULL
;
414 #endif /* OPTIMISE_SCROLL */
416 term
->lastbeep
= FALSE
;
417 term
->beep_overloaded
= FALSE
;
418 term
->attr_mask
= 0xffffffff;
419 term
->resize_fn
= NULL
;
420 term
->resize_ctx
= NULL
;
421 term
->in_term_out
= FALSE
;
426 void term_free(Terminal
*term
)
429 struct beeptime
*beep
;
431 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
433 freetree234(term
->scrollback
);
434 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
436 freetree234(term
->screen
);
437 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
439 freetree234(term
->alt_screen
);
440 sfree(term
->disptext
);
441 while (term
->beephead
) {
442 beep
= term
->beephead
;
443 term
->beephead
= beep
->next
;
446 bufchain_clear(&term
->inbuf
);
448 printer_finish_job(term
->print_job
);
449 bufchain_clear(&term
->printer_buf
);
450 sfree(term
->paste_buffer
);
455 * Set up the terminal for a given size.
457 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
460 unsigned long *newdisp
, *line
;
463 int save_alt_which
= term
->alt_which
;
465 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
466 newsavelines
== term
->savelines
)
467 return; /* nothing to do */
470 swap_screen(term
, 0, FALSE
, FALSE
);
472 term
->alt_t
= term
->marg_t
= 0;
473 term
->alt_b
= term
->marg_b
= newrows
- 1;
475 if (term
->rows
== -1) {
476 term
->scrollback
= newtree234(NULL
);
477 term
->screen
= newtree234(NULL
);
478 term
->tempsblines
= 0;
483 * Resize the screen and scrollback. We only need to shift
484 * lines around within our data structures, because lineptr()
485 * will take care of resizing each individual line if
488 * - If the new screen is longer, we shunt lines in from temporary
489 * scrollback if possible, otherwise we add new blank lines at
492 * - If the new screen is shorter, we remove any blank lines at
493 * the bottom if possible, otherwise shunt lines above the cursor
494 * to scrollback if possible, otherwise delete lines below the
497 * - Then, if the new scrollback length is less than the
498 * amount of scrollback we actually have, we must throw some
501 sblen
= count234(term
->scrollback
);
502 /* Do this loop to expand the screen if newrows > rows */
503 assert(term
->rows
== count234(term
->screen
));
504 while (term
->rows
< newrows
) {
505 if (term
->tempsblines
> 0) {
506 /* Insert a line from the scrollback at the top of the screen. */
507 assert(sblen
>= term
->tempsblines
);
508 line
= delpos234(term
->scrollback
, --sblen
);
509 term
->tempsblines
-= 1;
510 addpos234(term
->screen
, line
, 0);
512 term
->savecurs
.y
+= 1;
514 /* Add a new blank line at the bottom of the screen. */
515 line
= snewn(newcols
+ 2, TTYPE
);
517 for (j
= 0; j
< newcols
; j
++)
518 line
[j
+ 1] = ERASE_CHAR
;
519 line
[newcols
+ 1] = LATTR_NORM
;
520 addpos234(term
->screen
, line
, count234(term
->screen
));
524 /* Do this loop to shrink the screen if newrows < rows */
525 while (term
->rows
> newrows
) {
526 if (term
->curs
.y
< term
->rows
- 1) {
527 /* delete bottom row, unless it contains the cursor */
528 sfree(delpos234(term
->screen
, term
->rows
- 1));
530 /* push top row to scrollback */
531 line
= delpos234(term
->screen
, 0);
532 addpos234(term
->scrollback
, line
, sblen
++);
533 term
->tempsblines
+= 1;
535 term
->savecurs
.y
-= 1;
539 assert(term
->rows
== newrows
);
540 assert(count234(term
->screen
) == newrows
);
542 /* Delete any excess lines from the scrollback. */
543 while (sblen
> newsavelines
) {
544 line
= delpos234(term
->scrollback
, 0);
548 if (sblen
< term
->tempsblines
)
549 term
->tempsblines
= sblen
;
550 assert(count234(term
->scrollback
) <= newsavelines
);
551 assert(count234(term
->scrollback
) >= term
->tempsblines
);
554 /* Make a new displayed text buffer. */
555 newdisp
= snewn(newrows
* (newcols
+ 1), TTYPE
);
556 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
557 newdisp
[i
] = ATTR_INVALID
;
558 sfree(term
->disptext
);
559 term
->disptext
= newdisp
;
560 term
->dispcurs
= NULL
;
562 /* Make a new alternate screen. */
563 newalt
= newtree234(NULL
);
564 for (i
= 0; i
< newrows
; i
++) {
565 line
= snewn(newcols
+ 2, TTYPE
);
567 for (j
= 0; j
< newcols
; j
++)
568 line
[j
+ 1] = term
->erase_char
;
569 line
[newcols
+ 1] = LATTR_NORM
;
570 addpos234(newalt
, line
, i
);
572 if (term
->alt_screen
) {
573 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
575 freetree234(term
->alt_screen
);
577 term
->alt_screen
= newalt
;
578 term
->alt_sblines
= 0;
580 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
583 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
584 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
587 /* Check that the cursor positions are still valid. */
588 if (term
->savecurs
.y
< 0)
589 term
->savecurs
.y
= 0;
590 if (term
->savecurs
.y
>= newrows
)
591 term
->savecurs
.y
= newrows
- 1;
592 if (term
->curs
.y
< 0)
594 if (term
->curs
.y
>= newrows
)
595 term
->curs
.y
= newrows
- 1;
596 if (term
->curs
.x
>= newcols
)
597 term
->curs
.x
= newcols
- 1;
598 term
->alt_x
= term
->alt_y
= 0;
599 term
->wrapnext
= term
->alt_wnext
= FALSE
;
601 term
->rows
= newrows
;
602 term
->cols
= newcols
;
603 term
->savelines
= newsavelines
;
606 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
611 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
615 * Hand a function and context pointer to the terminal which it can
616 * use to notify a back end of resizes.
618 void term_provide_resize_fn(Terminal
*term
,
619 void (*resize_fn
)(void *, int, int),
622 term
->resize_fn
= resize_fn
;
623 term
->resize_ctx
= resize_ctx
;
624 if (term
->cols
> 0 && term
->rows
> 0)
625 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
628 /* Find the bottom line on the screen that has any content.
629 * If only the top line has content, returns 0.
630 * If no lines have content, return -1.
632 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
635 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
636 unsigned long *line
= index234(screen
, i
);
639 for (j
= 0; j
< cols
; j
++) {
640 if (line
[j
+ 1] != term
->erase_char
) break;
642 if (j
!= cols
) break;
648 * Swap screens. If `reset' is TRUE and we have been asked to
649 * switch to the alternate screen, we must bring most of its
650 * configuration from the main screen and erase the contents of the
651 * alternate screen completely. (This is even true if we're already
652 * on it! Blame xterm.)
654 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
660 reset
= FALSE
; /* do no weird resetting if which==0 */
662 if (which
!= term
->alt_which
) {
663 term
->alt_which
= which
;
665 ttr
= term
->alt_screen
;
666 term
->alt_screen
= term
->screen
;
668 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
670 if (!reset
&& !keep_cur_pos
)
671 term
->curs
.x
= term
->alt_x
;
674 if (!reset
&& !keep_cur_pos
)
675 term
->curs
.y
= term
->alt_y
;
678 if (!reset
) term
->marg_t
= term
->alt_t
;
681 if (!reset
) term
->marg_b
= term
->alt_b
;
684 if (!reset
) term
->dec_om
= term
->alt_om
;
687 if (!reset
) term
->wrap
= term
->alt_wrap
;
690 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
693 if (!reset
) term
->insert
= term
->alt_ins
;
696 if (!reset
) term
->cset
= term
->alt_cset
;
699 if (!reset
) term
->utf
= term
->alt_utf
;
702 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
703 term
->alt_sco_acs
= t
;
706 if (reset
&& term
->screen
) {
708 * Yes, this _is_ supposed to honour background-colour-erase.
710 erase_lots(term
, FALSE
, TRUE
, TRUE
);
714 * This might not be possible if we're called during
722 * Update the scroll bar.
724 static void update_sbar(Terminal
*term
)
726 int nscroll
= sblines(term
);
727 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
728 nscroll
+ term
->disptop
, term
->rows
);
732 * Check whether the region bounded by the two pointers intersects
733 * the scroll region, and de-select the on-screen selection if so.
735 static void check_selection(Terminal
*term
, pos from
, pos to
)
737 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
742 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
743 * for backward.) `sb' is TRUE if the scrolling is permitted to
744 * affect the scrollback buffer.
746 * NB this function invalidates all pointers into lines of the
747 * screen data structures. In particular, you MUST call fix_cpos
748 * after calling scroll() and before doing anything else that
749 * uses the cpos shortcut pointer.
751 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
753 unsigned long *line
, *line2
;
754 int i
, seltop
, olddisptop
, shift
;
756 if (topline
!= 0 || term
->alt_which
!= 0)
759 olddisptop
= term
->disptop
;
763 line
= delpos234(term
->screen
, botline
);
764 line
= resizeline(line
, term
->cols
);
765 for (i
= 0; i
< term
->cols
; i
++)
766 line
[i
+ 1] = term
->erase_char
;
767 line
[term
->cols
+ 1] = 0;
768 addpos234(term
->screen
, line
, topline
);
770 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
772 if (term
->selstart
.y
> botline
) {
773 term
->selstart
.y
= botline
+ 1;
774 term
->selstart
.x
= 0;
777 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
779 if (term
->selend
.y
> botline
) {
780 term
->selend
.y
= botline
+ 1;
789 line
= delpos234(term
->screen
, topline
);
790 if (sb
&& term
->savelines
> 0) {
791 int sblen
= count234(term
->scrollback
);
793 * We must add this line to the scrollback. We'll
794 * remove a line from the top of the scrollback to
795 * replace it, or allocate a new one if the
796 * scrollback isn't full.
798 if (sblen
== term
->savelines
) {
799 sblen
--, line2
= delpos234(term
->scrollback
, 0);
801 line2
= snewn(term
->cols
+ 2, TTYPE
);
802 line2
[0] = term
->cols
;
803 term
->tempsblines
+= 1;
805 addpos234(term
->scrollback
, line
, sblen
);
809 * If the user is currently looking at part of the
810 * scrollback, and they haven't enabled any options
811 * that are going to reset the scrollback as a
812 * result of this movement, then the chances are
813 * they'd like to keep looking at the same line. So
814 * we move their viewpoint at the same rate as the
815 * scroll, at least until their viewpoint hits the
816 * top end of the scrollback buffer, at which point
817 * we don't have the choice any more.
819 * Thanks to Jan Holmen Holsten for the idea and
820 * initial implementation.
822 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
825 line
= resizeline(line
, term
->cols
);
826 for (i
= 0; i
< term
->cols
; i
++)
827 line
[i
+ 1] = term
->erase_char
;
828 line
[term
->cols
+ 1] = LATTR_NORM
;
829 addpos234(term
->screen
, line
, botline
);
832 * If the selection endpoints move into the scrollback,
833 * we keep them moving until they hit the top. However,
834 * of course, if the line _hasn't_ moved into the
835 * scrollback then we don't do this, and cut them off
836 * at the top of the scroll region.
838 * This applies to selstart and selend (for an existing
839 * selection), and also selanchor (for one being
840 * selected as we speak).
842 seltop
= sb ?
-term
->savelines
: topline
;
844 if (term
->selstart
.y
>= seltop
&&
845 term
->selstart
.y
<= botline
) {
847 if (term
->selstart
.y
< seltop
) {
848 term
->selstart
.y
= seltop
;
849 term
->selstart
.x
= 0;
852 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
854 if (term
->selend
.y
< seltop
) {
855 term
->selend
.y
= seltop
;
859 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
861 if (term
->selanchor
.y
< seltop
) {
862 term
->selanchor
.y
= seltop
;
863 term
->selanchor
.x
= 0;
870 #ifdef OPTIMISE_SCROLL
871 shift
+= term
->disptop
- olddisptop
;
872 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
873 scroll_display(term
, topline
, botline
, shift
);
874 #endif /* OPTIMISE_SCROLL */
877 #ifdef OPTIMISE_SCROLL
879 * Add a scroll of a region on the screen into the pending scroll list.
880 * `lines' is +ve for scrolling forward, -ve for backward.
882 * If the scroll is on the same area as the last scroll in the list,
885 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
887 struct scrollregion
*newscroll
;
888 if (term
->scrolltail
&&
889 term
->scrolltail
->topline
== topline
&&
890 term
->scrolltail
->botline
== botline
) {
891 term
->scrolltail
->lines
+= lines
;
893 newscroll
= snew(struct scrollregion
);
894 newscroll
->topline
= topline
;
895 newscroll
->botline
= botline
;
896 newscroll
->lines
= lines
;
897 newscroll
->next
= NULL
;
899 if (!term
->scrollhead
)
900 term
->scrollhead
= newscroll
;
902 term
->scrolltail
->next
= newscroll
;
903 term
->scrolltail
= newscroll
;
908 * Scroll the physical display, and our conception of it in disptext.
910 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
912 unsigned long *start
, *end
;
913 int distance
, size
, i
;
915 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
916 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
917 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
918 size
= end
- start
- distance
;
920 memmove(start
, start
+ distance
, size
* TSIZE
);
921 if (term
->dispcurs
>= start
+ distance
&&
922 term
->dispcurs
<= start
+ distance
+ size
)
923 term
->dispcurs
-= distance
;
924 for (i
= 0; i
< distance
; i
++)
925 (start
+ size
)[i
] |= ATTR_INVALID
;
927 memmove(start
+ distance
, start
, size
* TSIZE
);
928 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
929 term
->dispcurs
+= distance
;
930 for (i
= 0; i
< distance
; i
++)
931 start
[i
] |= ATTR_INVALID
;
933 save_scroll(term
, topline
, botline
, lines
);
935 #endif /* OPTIMISE_SCROLL */
938 * Move the cursor to a given position, clipping at boundaries. We
939 * may or may not want to clip at the scroll margin: marg_clip is 0
940 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
941 * even _being_ outside the margins.
943 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
950 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
953 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
964 term
->wrapnext
= FALSE
;
968 * Save or restore the cursor and SGR mode.
970 static void save_cursor(Terminal
*term
, int save
)
973 term
->savecurs
= term
->curs
;
974 term
->save_attr
= term
->curr_attr
;
975 term
->save_cset
= term
->cset
;
976 term
->save_utf
= term
->utf
;
977 term
->save_wnext
= term
->wrapnext
;
978 term
->save_csattr
= term
->cset_attr
[term
->cset
];
979 term
->save_sco_acs
= term
->sco_acs
;
981 term
->curs
= term
->savecurs
;
982 /* Make sure the window hasn't shrunk since the save */
983 if (term
->curs
.x
>= term
->cols
)
984 term
->curs
.x
= term
->cols
- 1;
985 if (term
->curs
.y
>= term
->rows
)
986 term
->curs
.y
= term
->rows
- 1;
988 term
->curr_attr
= term
->save_attr
;
989 term
->cset
= term
->save_cset
;
990 term
->utf
= term
->save_utf
;
991 term
->wrapnext
= term
->save_wnext
;
993 * wrapnext might reset to False if the x position is no
994 * longer at the rightmost edge.
996 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
997 term
->wrapnext
= FALSE
;
998 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
999 term
->sco_acs
= term
->save_sco_acs
;
1002 term
->erase_char
= (' ' | ATTR_ASCII
|
1004 (ATTR_FGMASK
| ATTR_BGMASK
)));
1009 * This function is called before doing _anything_ which affects
1010 * only part of a line of text. It is used to mark the boundary
1011 * between two character positions, and it indicates that some sort
1012 * of effect is going to happen on only one side of that boundary.
1014 * The effect of this function is to check whether a CJK
1015 * double-width character is straddling the boundary, and to remove
1016 * it and replace it with two spaces if so. (Of course, one or
1017 * other of those spaces is then likely to be replaced with
1018 * something else again, as a result of whatever happens next.)
1020 * Also, if the boundary is at the right-hand _edge_ of the screen,
1021 * it implies something deliberate is being done to the rightmost
1022 * column position; hence we must clear LATTR_WRAPPED2.
1024 * The input to the function is the coordinates of the _second_
1025 * character of the pair.
1027 static void check_boundary(Terminal
*term
, int x
, int y
)
1029 unsigned long *ldata
;
1031 /* Validate input coordinates, just in case. */
1032 if (x
== 0 || x
> term
->cols
)
1036 if (x
== term
->cols
) {
1037 ldata
[x
] &= ~LATTR_WRAPPED2
;
1039 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
1040 ldata
[x
-1] = ldata
[x
] =
1041 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
1047 * Erase a large portion of the screen: the whole screen, or the
1048 * whole line, or parts thereof.
1050 static void erase_lots(Terminal
*term
,
1051 int line_only
, int from_begin
, int to_end
)
1055 int erasing_lines_from_top
= 0;
1058 start
.y
= term
->curs
.y
;
1060 end
.y
= term
->curs
.y
+ 1;
1062 erase_lattr
= FALSE
;
1077 if (!from_begin
|| !to_end
)
1078 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1079 check_selection(term
, start
, end
);
1081 /* Clear screen also forces a full window redraw, just in case. */
1082 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1083 term_invalidate(term
);
1085 /* Lines scrolled away shouldn't be brought back on if the terminal
1087 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1088 erasing_lines_from_top
= 1;
1090 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1091 /* If it's a whole number of lines, starting at the top, and
1092 * we're fully erasing them, erase by scrolling and keep the
1093 * lines in the scrollback. */
1094 int scrolllines
= end
.y
;
1095 if (end
.y
== term
->rows
) {
1096 /* Shrink until we find a non-empty row.*/
1097 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1099 if (scrolllines
> 0)
1100 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1103 unsigned long *ldata
= lineptr(start
.y
);
1104 while (poslt(start
, end
)) {
1105 if (start
.x
== term
->cols
) {
1107 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1109 ldata
[start
.x
] = LATTR_NORM
;
1111 ldata
[start
.x
] = term
->erase_char
;
1113 if (incpos(start
) && start
.y
< term
->rows
)
1114 ldata
= lineptr(start
.y
);
1118 /* After an erase of lines from the top of the screen, we shouldn't
1119 * bring the lines back again if the terminal enlarges (since the user or
1120 * application has explictly thrown them away). */
1121 if (erasing_lines_from_top
&& !(term
->alt_which
))
1122 term
->tempsblines
= 0;
1126 * Insert or delete characters within the current line. n is +ve if
1127 * insertion is desired, and -ve for deletion.
1129 static void insch(Terminal
*term
, int n
)
1131 int dir
= (n
< 0 ?
-1 : +1);
1134 unsigned long *ldata
;
1136 n
= (n
< 0 ?
-n
: n
);
1137 if (n
> term
->cols
- term
->curs
.x
)
1138 n
= term
->cols
- term
->curs
.x
;
1139 m
= term
->cols
- term
->curs
.x
- n
;
1140 cursplus
.y
= term
->curs
.y
;
1141 cursplus
.x
= term
->curs
.x
+ n
;
1142 check_selection(term
, term
->curs
, cursplus
);
1143 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1145 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1146 ldata
= lineptr(term
->curs
.y
);
1148 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1150 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1152 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1154 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1159 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1160 * whether the mode is a DEC private one or a normal one.)
1162 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1164 unsigned long ticks
;
1168 case 1: /* application cursor keys */
1169 term
->app_cursor_keys
= state
;
1171 case 2: /* VT52 mode */
1172 term
->vt52_mode
= !state
;
1173 if (term
->vt52_mode
) {
1174 term
->blink_is_real
= FALSE
;
1175 term
->vt52_bold
= FALSE
;
1177 term
->blink_is_real
= term
->cfg
.blinktext
;
1180 case 3: /* 80/132 columns */
1182 if (!term
->cfg
.no_remote_resize
)
1183 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1184 term
->reset_132
= state
;
1185 term
->alt_t
= term
->marg_t
= 0;
1186 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1187 move(term
, 0, 0, 0);
1188 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1190 case 5: /* reverse video */
1192 * Toggle reverse video. If we receive an OFF within the
1193 * visual bell timeout period after an ON, we trigger an
1194 * effective visual bell, so that ESC[?5hESC[?5l will
1195 * always be an actually _visible_ visual bell.
1197 ticks
= GETTICKCOUNT();
1198 /* turn off a previous vbell to avoid inconsistencies */
1199 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1200 term
->in_vbell
= FALSE
;
1201 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1202 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1203 /* If there's no vbell timeout already, or this one lasts
1204 * longer, replace vbell_timeout with ours. */
1205 if (!term
->in_vbell
||
1206 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1208 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1209 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1210 } else if (!term
->rvideo
&& state
) {
1211 /* This is an ON, so we notice the time and save it. */
1212 term
->rvbell_startpoint
= ticks
;
1214 term
->rvideo
= state
;
1215 term
->seen_disp_event
= TRUE
;
1219 case 6: /* DEC origin mode */
1220 term
->dec_om
= state
;
1222 case 7: /* auto wrap */
1225 case 8: /* auto key repeat */
1226 term
->repeat_off
= !state
;
1228 case 10: /* set local edit mode */
1229 term
->term_editing
= state
;
1230 if (term
->ldisc
) /* cause ldisc to notice changes */
1231 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1233 case 25: /* enable/disable cursor */
1234 compatibility2(OTHER
, VT220
);
1235 term
->cursor_on
= state
;
1236 term
->seen_disp_event
= TRUE
;
1238 case 47: /* alternate screen */
1239 compatibility(OTHER
);
1241 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1244 case 1000: /* xterm mouse 1 */
1245 term
->xterm_mouse
= state ?
1 : 0;
1246 set_raw_mouse_mode(term
->frontend
, state
);
1248 case 1002: /* xterm mouse 2 */
1249 term
->xterm_mouse
= state ?
2 : 0;
1250 set_raw_mouse_mode(term
->frontend
, state
);
1252 case 1047: /* alternate screen */
1253 compatibility(OTHER
);
1255 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1258 case 1048: /* save/restore cursor */
1259 save_cursor(term
, state
);
1260 if (!state
) term
->seen_disp_event
= TRUE
;
1262 case 1049: /* cursor & alternate screen */
1264 save_cursor(term
, state
);
1265 if (!state
) term
->seen_disp_event
= TRUE
;
1266 compatibility(OTHER
);
1268 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1270 save_cursor(term
, state
);
1275 case 4: /* set insert mode */
1276 compatibility(VT102
);
1277 term
->insert
= state
;
1279 case 12: /* set echo mode */
1280 term
->term_echoing
= !state
;
1281 if (term
->ldisc
) /* cause ldisc to notice changes */
1282 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1284 case 20: /* Return sends ... */
1285 term
->cr_lf_return
= state
;
1287 case 34: /* Make cursor BIG */
1288 compatibility2(OTHER
, VT220
);
1289 term
->big_cursor
= !state
;
1294 * Process an OSC sequence: set window title or icon name.
1296 static void do_osc(Terminal
*term
)
1299 while (term
->osc_strlen
--)
1300 term
->wordness
[(unsigned char)
1301 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1303 term
->osc_string
[term
->osc_strlen
] = '\0';
1304 switch (term
->esc_args
[0]) {
1307 if (!term
->cfg
.no_remote_wintitle
)
1308 set_icon(term
->frontend
, term
->osc_string
);
1309 if (term
->esc_args
[0] == 1)
1311 /* fall through: parameter 0 means set both */
1314 if (!term
->cfg
.no_remote_wintitle
)
1315 set_title(term
->frontend
, term
->osc_string
);
1322 * ANSI printing routines.
1324 static void term_print_setup(Terminal
*term
)
1326 bufchain_clear(&term
->printer_buf
);
1327 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1329 static void term_print_flush(Terminal
*term
)
1334 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1335 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1338 printer_job_data(term
->print_job
, data
, len
);
1339 bufchain_consume(&term
->printer_buf
, len
);
1342 static void term_print_finish(Terminal
*term
)
1348 if (!term
->printing
&& !term
->only_printing
)
1349 return; /* we need do nothing */
1351 term_print_flush(term
);
1352 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1353 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1355 if (c
== '\033' || c
== '\233') {
1356 bufchain_consume(&term
->printer_buf
, size
);
1359 printer_job_data(term
->print_job
, &c
, 1);
1360 bufchain_consume(&term
->printer_buf
, 1);
1363 printer_finish_job(term
->print_job
);
1364 term
->print_job
= NULL
;
1365 term
->printing
= term
->only_printing
= FALSE
;
1369 * Remove everything currently in `inbuf' and stick it up on the
1370 * in-memory display. There's a big state machine in here to
1371 * process escape sequences...
1373 void term_out(Terminal
*term
)
1376 unsigned char localbuf
[256], *chars
;
1381 chars
= NULL
; /* placate compiler warnings */
1382 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1386 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1387 if (nchars
> sizeof(localbuf
))
1388 nchars
= sizeof(localbuf
);
1389 memcpy(localbuf
, ret
, nchars
);
1390 bufchain_consume(&term
->inbuf
, nchars
);
1392 assert(chars
!= NULL
);
1398 * Optionally log the session traffic to a file. Useful for
1399 * debugging and possibly also useful for actual logging.
1401 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1402 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1408 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1409 * be able to display 8-bit characters, but I'll let that go 'cause
1414 * If we're printing, add the character to the printer
1417 if (term
->printing
) {
1418 bufchain_add(&term
->printer_buf
, &c
, 1);
1421 * If we're in print-only mode, we use a much simpler
1422 * state machine designed only to recognise the ESC[4i
1423 * termination sequence.
1425 if (term
->only_printing
) {
1427 term
->print_state
= 1;
1428 else if (c
== (unsigned char)'\233')
1429 term
->print_state
= 2;
1430 else if (c
== '[' && term
->print_state
== 1)
1431 term
->print_state
= 2;
1432 else if (c
== '4' && term
->print_state
== 2)
1433 term
->print_state
= 3;
1434 else if (c
== 'i' && term
->print_state
== 3)
1435 term
->print_state
= 4;
1437 term
->print_state
= 0;
1438 if (term
->print_state
== 4) {
1439 term_print_finish(term
);
1445 /* First see about all those translations. */
1446 if (term
->termstate
== TOPLEVEL
) {
1448 switch (term
->utf_state
) {
1451 /* UTF-8 must be stateless so we ignore iso2022. */
1452 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1453 c
= term
->ucsdata
->unitab_ctrl
[c
];
1454 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1456 } else if ((c
& 0xe0) == 0xc0) {
1457 term
->utf_size
= term
->utf_state
= 1;
1458 term
->utf_char
= (c
& 0x1f);
1459 } else if ((c
& 0xf0) == 0xe0) {
1460 term
->utf_size
= term
->utf_state
= 2;
1461 term
->utf_char
= (c
& 0x0f);
1462 } else if ((c
& 0xf8) == 0xf0) {
1463 term
->utf_size
= term
->utf_state
= 3;
1464 term
->utf_char
= (c
& 0x07);
1465 } else if ((c
& 0xfc) == 0xf8) {
1466 term
->utf_size
= term
->utf_state
= 4;
1467 term
->utf_char
= (c
& 0x03);
1468 } else if ((c
& 0xfe) == 0xfc) {
1469 term
->utf_size
= term
->utf_state
= 5;
1470 term
->utf_char
= (c
& 0x01);
1481 if ((c
& 0xC0) != 0x80) {
1484 term
->utf_state
= 0;
1487 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1488 if (--term
->utf_state
)
1493 /* Is somebody trying to be evil! */
1495 (c
< 0x800 && term
->utf_size
>= 2) ||
1496 (c
< 0x10000 && term
->utf_size
>= 3) ||
1497 (c
< 0x200000 && term
->utf_size
>= 4) ||
1498 (c
< 0x4000000 && term
->utf_size
>= 5))
1501 /* Unicode line separator and paragraph separator are CR-LF */
1502 if (c
== 0x2028 || c
== 0x2029)
1505 /* High controls are probably a Baaad idea too. */
1509 /* The UTF-16 surrogates are not nice either. */
1510 /* The standard give the option of decoding these:
1511 * I don't want to! */
1512 if (c
>= 0xD800 && c
< 0xE000)
1515 /* ISO 10646 characters now limited to UTF-16 range. */
1519 /* This is currently a TagPhobic application.. */
1520 if (c
>= 0xE0000 && c
<= 0xE007F)
1523 /* U+FEFF is best seen as a null. */
1526 /* But U+FFFE is an error. */
1527 if (c
== 0xFFFE || c
== 0xFFFF)
1530 /* Oops this is a 16bit implementation */
1535 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1536 else if(term
->sco_acs
&&
1537 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1539 if (term
->sco_acs
== 2) c
|= 0x80;
1542 switch (term
->cset_attr
[term
->cset
]) {
1544 * Linedraw characters are different from 'ESC ( B'
1545 * only for a small range. For ones outside that
1546 * range, make sure we use the same font as well as
1547 * the same encoding.
1550 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1551 c
= term
->ucsdata
->unitab_ctrl
[c
];
1553 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1557 /* If UK-ASCII, make the '#' a LineDraw Pound */
1559 c
= '}' | ATTR_LINEDRW
;
1562 /*FALLTHROUGH*/ case ATTR_ASCII
:
1563 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1564 c
= term
->ucsdata
->unitab_ctrl
[c
];
1566 c
= ((unsigned char) c
) | ATTR_ASCII
;
1569 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1575 /* How about C1 controls ? */
1576 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1577 !term
->vt52_mode
&& has_compat(VT220
)) {
1578 term
->termstate
= SEEN_ESC
;
1579 term
->esc_query
= FALSE
;
1580 c
= '@' + (c
& 0x1F);
1583 /* Or the GL control. */
1584 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1585 if (term
->curs
.x
&& !term
->wrapnext
)
1587 term
->wrapnext
= FALSE
;
1589 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1590 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1592 /* Or normal C0 controls. */
1593 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1595 case '\005': /* terminal type query */
1596 /* Strictly speaking this is VT100 but a VT100 defaults to
1597 * no response. Other terminals respond at their option.
1599 * Don't put a CR in the default string as this tends to
1600 * upset some weird software.
1602 * An xterm returns "xterm" (5 characters)
1604 compatibility(ANSIMIN
);
1606 char abuf
[256], *s
, *d
;
1608 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1610 if (*s
>= 'a' && *s
<= 'z')
1611 *d
++ = (*s
- ('a' - 1));
1612 else if ((*s
>= '@' && *s
<= '_') ||
1613 *s
== '?' || (*s
& 0x80))
1618 } else if (*s
== '^') {
1623 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1629 struct beeptime
*newbeep
;
1630 unsigned long ticks
;
1632 ticks
= GETTICKCOUNT();
1634 if (!term
->beep_overloaded
) {
1635 newbeep
= snew(struct beeptime
);
1636 newbeep
->ticks
= ticks
;
1637 newbeep
->next
= NULL
;
1638 if (!term
->beephead
)
1639 term
->beephead
= newbeep
;
1641 term
->beeptail
->next
= newbeep
;
1642 term
->beeptail
= newbeep
;
1647 * Throw out any beeps that happened more than
1650 while (term
->beephead
&&
1651 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1652 struct beeptime
*tmp
= term
->beephead
;
1653 term
->beephead
= tmp
->next
;
1655 if (!term
->beephead
)
1656 term
->beeptail
= NULL
;
1660 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1661 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1663 * If we're currently overloaded and the
1664 * last beep was more than s seconds ago,
1665 * leave overload mode.
1667 term
->beep_overloaded
= FALSE
;
1668 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1669 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1671 * Now, if we have n or more beeps
1672 * remaining in the queue, go into overload
1675 term
->beep_overloaded
= TRUE
;
1677 term
->lastbeep
= ticks
;
1680 * Perform an actual beep if we're not overloaded.
1682 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1683 beep(term
->frontend
, term
->cfg
.beep
);
1684 if (term
->cfg
.beep
== BELL_VISUAL
) {
1685 term
->in_vbell
= TRUE
;
1686 term
->vbell_startpoint
= ticks
;
1694 if (term
->curs
.x
== 0 &&
1695 (term
->curs
.y
== 0 || term
->wrap
== 0))
1697 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1698 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1699 else if (term
->wrapnext
)
1700 term
->wrapnext
= FALSE
;
1704 term
->seen_disp_event
= TRUE
;
1707 compatibility(VT100
);
1711 compatibility(VT100
);
1715 if (term
->vt52_mode
)
1716 term
->termstate
= VT52_ESC
;
1718 compatibility(ANSIMIN
);
1719 term
->termstate
= SEEN_ESC
;
1720 term
->esc_query
= FALSE
;
1725 term
->wrapnext
= FALSE
;
1727 term
->seen_disp_event
= TRUE
;
1728 term
->paste_hold
= 0;
1730 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1733 if (has_compat(SCOANSI
)) {
1734 move(term
, 0, 0, 0);
1735 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1737 term
->wrapnext
= FALSE
;
1738 term
->seen_disp_event
= 1;
1742 compatibility(VT100
);
1744 if (term
->curs
.y
== term
->marg_b
)
1745 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1746 else if (term
->curs
.y
< term
->rows
- 1)
1748 if (term
->cfg
.lfhascr
)
1751 term
->wrapnext
= FALSE
;
1752 term
->seen_disp_event
= 1;
1753 term
->paste_hold
= 0;
1755 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1759 pos old_curs
= term
->curs
;
1760 unsigned long *ldata
= lineptr(term
->curs
.y
);
1764 } while (term
->curs
.x
< term
->cols
- 1 &&
1765 !term
->tabs
[term
->curs
.x
]);
1767 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1768 if (term
->curs
.x
>= term
->cols
/ 2)
1769 term
->curs
.x
= term
->cols
/ 2 - 1;
1771 if (term
->curs
.x
>= term
->cols
)
1772 term
->curs
.x
= term
->cols
- 1;
1776 check_selection(term
, old_curs
, term
->curs
);
1778 term
->seen_disp_event
= TRUE
;
1782 switch (term
->termstate
) {
1784 /* Only graphic characters get this far;
1785 * ctrls are stripped above */
1786 if (term
->wrapnext
&& term
->wrap
) {
1787 term
->cpos
[1] |= LATTR_WRAPPED
;
1788 if (term
->curs
.y
== term
->marg_b
)
1789 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1790 else if (term
->curs
.y
< term
->rows
- 1)
1794 term
->wrapnext
= FALSE
;
1798 if (term
->selstate
!= NO_SELECTION
) {
1799 pos cursplus
= term
->curs
;
1801 check_selection(term
, term
->curs
, cursplus
);
1803 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1805 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1811 width
= wcwidth((wchar_t) c
);
1815 * If we're about to display a double-width
1816 * character starting in the rightmost
1817 * column, then we do something special
1818 * instead. We must print a space in the
1819 * last column of the screen, then wrap;
1820 * and we also set LATTR_WRAPPED2 which
1821 * instructs subsequent cut-and-pasting not
1822 * only to splice this line to the one
1823 * after it, but to ignore the space in the
1824 * last character position as well.
1825 * (Because what was actually output to the
1826 * terminal was presumably just a sequence
1827 * of CJK characters, and we don't want a
1828 * space to be pasted in the middle of
1829 * those just because they had the
1830 * misfortune to start in the wrong parity
1831 * column. xterm concurs.)
1833 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1834 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1835 if (term
->curs
.x
== term
->cols
-1) {
1836 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1837 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1838 if (term
->curs
.y
== term
->marg_b
)
1839 scroll(term
, term
->marg_t
, term
->marg_b
,
1841 else if (term
->curs
.y
< term
->rows
- 1)
1845 /* Now we must check_boundary again, of course. */
1846 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1847 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1849 *term
->cpos
++ = c
| term
->curr_attr
;
1850 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1854 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1855 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1856 *term
->cpos
++ = c
| term
->curr_attr
;
1863 if (term
->curs
.x
== term
->cols
) {
1866 term
->wrapnext
= TRUE
;
1867 if (term
->wrap
&& term
->vt52_mode
) {
1868 term
->cpos
[1] |= LATTR_WRAPPED
;
1869 if (term
->curs
.y
== term
->marg_b
)
1870 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1871 else if (term
->curs
.y
< term
->rows
- 1)
1875 term
->wrapnext
= FALSE
;
1878 term
->seen_disp_event
= 1;
1883 * This state is virtually identical to SEEN_ESC, with the
1884 * exception that we have an OSC sequence in the pipeline,
1885 * and _if_ we see a backslash, we process it.
1889 term
->termstate
= TOPLEVEL
;
1892 /* else fall through */
1894 if (c
>= ' ' && c
<= '/') {
1895 if (term
->esc_query
)
1896 term
->esc_query
= -1;
1898 term
->esc_query
= c
;
1901 term
->termstate
= TOPLEVEL
;
1902 switch (ANSI(c
, term
->esc_query
)) {
1903 case '[': /* enter CSI mode */
1904 term
->termstate
= SEEN_CSI
;
1905 term
->esc_nargs
= 1;
1906 term
->esc_args
[0] = ARG_DEFAULT
;
1907 term
->esc_query
= FALSE
;
1909 case ']': /* xterm escape sequences */
1910 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1911 compatibility(OTHER
);
1912 term
->termstate
= SEEN_OSC
;
1913 term
->esc_args
[0] = 0;
1915 case '7': /* save cursor */
1916 compatibility(VT100
);
1917 save_cursor(term
, TRUE
);
1919 case '8': /* restore cursor */
1920 compatibility(VT100
);
1921 save_cursor(term
, FALSE
);
1922 term
->seen_disp_event
= TRUE
;
1925 compatibility(VT100
);
1926 term
->app_keypad_keys
= TRUE
;
1929 compatibility(VT100
);
1930 term
->app_keypad_keys
= FALSE
;
1932 case 'D': /* exactly equivalent to LF */
1933 compatibility(VT100
);
1934 if (term
->curs
.y
== term
->marg_b
)
1935 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1936 else if (term
->curs
.y
< term
->rows
- 1)
1939 term
->wrapnext
= FALSE
;
1940 term
->seen_disp_event
= TRUE
;
1942 case 'E': /* exactly equivalent to CR-LF */
1943 compatibility(VT100
);
1945 if (term
->curs
.y
== term
->marg_b
)
1946 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1947 else if (term
->curs
.y
< term
->rows
- 1)
1950 term
->wrapnext
= FALSE
;
1951 term
->seen_disp_event
= TRUE
;
1953 case 'M': /* reverse index - backwards LF */
1954 compatibility(VT100
);
1955 if (term
->curs
.y
== term
->marg_t
)
1956 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1957 else if (term
->curs
.y
> 0)
1960 term
->wrapnext
= FALSE
;
1961 term
->seen_disp_event
= TRUE
;
1963 case 'Z': /* terminal type query */
1964 compatibility(VT100
);
1966 ldisc_send(term
->ldisc
, term
->id_string
,
1967 strlen(term
->id_string
), 0);
1969 case 'c': /* restore power-on settings */
1970 compatibility(VT100
);
1972 if (term
->ldisc
) /* cause ldisc to notice changes */
1973 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1974 if (term
->reset_132
) {
1975 if (!term
->cfg
.no_remote_resize
)
1976 request_resize(term
->frontend
, 80, term
->rows
);
1977 term
->reset_132
= 0;
1981 term
->seen_disp_event
= TRUE
;
1983 case 'H': /* set a tab */
1984 compatibility(VT100
);
1985 term
->tabs
[term
->curs
.x
] = TRUE
;
1988 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1989 compatibility(VT100
);
1991 unsigned long *ldata
;
1995 for (i
= 0; i
< term
->rows
; i
++) {
1997 for (j
= 0; j
< term
->cols
; j
++)
1998 ldata
[j
] = ATTR_DEFAULT
| 'E';
1999 ldata
[term
->cols
] = 0;
2002 term
->seen_disp_event
= TRUE
;
2003 scrtop
.x
= scrtop
.y
= 0;
2005 scrbot
.y
= term
->rows
;
2006 check_selection(term
, scrtop
, scrbot
);
2010 case ANSI('3', '#'):
2011 case ANSI('4', '#'):
2012 case ANSI('5', '#'):
2013 case ANSI('6', '#'):
2014 compatibility(VT100
);
2016 unsigned long nlattr
;
2017 unsigned long *ldata
;
2018 switch (ANSI(c
, term
->esc_query
)) {
2019 case ANSI('3', '#'):
2022 case ANSI('4', '#'):
2025 case ANSI('5', '#'):
2026 nlattr
= LATTR_NORM
;
2028 default: /* spiritually case ANSI('6', '#'): */
2029 nlattr
= LATTR_WIDE
;
2032 ldata
= lineptr(term
->curs
.y
);
2033 ldata
[term
->cols
] &= ~LATTR_MODE
;
2034 ldata
[term
->cols
] |= nlattr
;
2038 case ANSI('A', '('):
2039 compatibility(VT100
);
2040 if (!term
->cfg
.no_remote_charset
)
2041 term
->cset_attr
[0] = ATTR_GBCHR
;
2043 case ANSI('B', '('):
2044 compatibility(VT100
);
2045 if (!term
->cfg
.no_remote_charset
)
2046 term
->cset_attr
[0] = ATTR_ASCII
;
2048 case ANSI('0', '('):
2049 compatibility(VT100
);
2050 if (!term
->cfg
.no_remote_charset
)
2051 term
->cset_attr
[0] = ATTR_LINEDRW
;
2053 case ANSI('U', '('):
2054 compatibility(OTHER
);
2055 if (!term
->cfg
.no_remote_charset
)
2056 term
->cset_attr
[0] = ATTR_SCOACS
;
2059 case ANSI('A', ')'):
2060 compatibility(VT100
);
2061 if (!term
->cfg
.no_remote_charset
)
2062 term
->cset_attr
[1] = ATTR_GBCHR
;
2064 case ANSI('B', ')'):
2065 compatibility(VT100
);
2066 if (!term
->cfg
.no_remote_charset
)
2067 term
->cset_attr
[1] = ATTR_ASCII
;
2069 case ANSI('0', ')'):
2070 compatibility(VT100
);
2071 if (!term
->cfg
.no_remote_charset
)
2072 term
->cset_attr
[1] = ATTR_LINEDRW
;
2074 case ANSI('U', ')'):
2075 compatibility(OTHER
);
2076 if (!term
->cfg
.no_remote_charset
)
2077 term
->cset_attr
[1] = ATTR_SCOACS
;
2080 case ANSI('8', '%'): /* Old Linux code */
2081 case ANSI('G', '%'):
2082 compatibility(OTHER
);
2083 if (!term
->cfg
.no_remote_charset
)
2086 case ANSI('@', '%'):
2087 compatibility(OTHER
);
2088 if (!term
->cfg
.no_remote_charset
)
2094 term
->termstate
= TOPLEVEL
; /* default */
2096 if (term
->esc_nargs
<= ARGS_MAX
) {
2097 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
2098 term
->esc_args
[term
->esc_nargs
- 1] = 0;
2099 term
->esc_args
[term
->esc_nargs
- 1] =
2100 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
2102 term
->termstate
= SEEN_CSI
;
2103 } else if (c
== ';') {
2104 if (++term
->esc_nargs
<= ARGS_MAX
)
2105 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
2106 term
->termstate
= SEEN_CSI
;
2107 } else if (c
< '@') {
2108 if (term
->esc_query
)
2109 term
->esc_query
= -1;
2111 term
->esc_query
= TRUE
;
2113 term
->esc_query
= c
;
2114 term
->termstate
= SEEN_CSI
;
2116 switch (ANSI(c
, term
->esc_query
)) {
2117 case 'A': /* move up N lines */
2118 move(term
, term
->curs
.x
,
2119 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2120 term
->seen_disp_event
= TRUE
;
2122 case 'e': /* move down N lines */
2123 compatibility(ANSI
);
2126 move(term
, term
->curs
.x
,
2127 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2128 term
->seen_disp_event
= TRUE
;
2130 case ANSI('c', '>'): /* report xterm version */
2131 compatibility(OTHER
);
2132 /* this reports xterm version 136 so that VIM can
2133 use the drag messages from the mouse reporting */
2135 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
2137 case 'a': /* move right N cols */
2138 compatibility(ANSI
);
2141 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
2143 term
->seen_disp_event
= TRUE
;
2145 case 'D': /* move left N cols */
2146 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2148 term
->seen_disp_event
= TRUE
;
2150 case 'E': /* move down N lines and CR */
2151 compatibility(ANSI
);
2153 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2154 term
->seen_disp_event
= TRUE
;
2156 case 'F': /* move up N lines and CR */
2157 compatibility(ANSI
);
2159 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2160 term
->seen_disp_event
= TRUE
;
2163 case '`': /* set horizontal posn */
2164 compatibility(ANSI
);
2165 move(term
, def(term
->esc_args
[0], 1) - 1,
2167 term
->seen_disp_event
= TRUE
;
2169 case 'd': /* set vertical posn */
2170 compatibility(ANSI
);
2171 move(term
, term
->curs
.x
,
2172 ((term
->dec_om ? term
->marg_t
: 0) +
2173 def(term
->esc_args
[0], 1) - 1),
2174 (term
->dec_om ?
2 : 0));
2175 term
->seen_disp_event
= TRUE
;
2178 case 'f': /* set horz and vert posns at once */
2179 if (term
->esc_nargs
< 2)
2180 term
->esc_args
[1] = ARG_DEFAULT
;
2181 move(term
, def(term
->esc_args
[1], 1) - 1,
2182 ((term
->dec_om ? term
->marg_t
: 0) +
2183 def(term
->esc_args
[0], 1) - 1),
2184 (term
->dec_om ?
2 : 0));
2185 term
->seen_disp_event
= TRUE
;
2187 case 'J': /* erase screen or parts of it */
2189 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2192 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2195 term
->seen_disp_event
= TRUE
;
2197 case 'K': /* erase line or parts of it */
2199 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2202 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2204 term
->seen_disp_event
= TRUE
;
2206 case 'L': /* insert lines */
2207 compatibility(VT102
);
2208 if (term
->curs
.y
<= term
->marg_b
)
2209 scroll(term
, term
->curs
.y
, term
->marg_b
,
2210 -def(term
->esc_args
[0], 1), FALSE
);
2212 term
->seen_disp_event
= TRUE
;
2214 case 'M': /* delete lines */
2215 compatibility(VT102
);
2216 if (term
->curs
.y
<= term
->marg_b
)
2217 scroll(term
, term
->curs
.y
, term
->marg_b
,
2218 def(term
->esc_args
[0], 1),
2221 term
->seen_disp_event
= TRUE
;
2223 case '@': /* insert chars */
2224 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2225 compatibility(VT102
);
2226 insch(term
, def(term
->esc_args
[0], 1));
2227 term
->seen_disp_event
= TRUE
;
2229 case 'P': /* delete chars */
2230 compatibility(VT102
);
2231 insch(term
, -def(term
->esc_args
[0], 1));
2232 term
->seen_disp_event
= TRUE
;
2234 case 'c': /* terminal type query */
2235 compatibility(VT100
);
2236 /* This is the response for a VT102 */
2238 ldisc_send(term
->ldisc
, term
->id_string
,
2239 strlen(term
->id_string
), 0);
2241 case 'n': /* cursor position query */
2243 if (term
->esc_args
[0] == 6) {
2245 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2247 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2248 } else if (term
->esc_args
[0] == 5) {
2249 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2253 case 'h': /* toggle modes to high */
2255 compatibility(VT100
);
2258 for (i
= 0; i
< term
->esc_nargs
; i
++)
2259 toggle_mode(term
, term
->esc_args
[i
],
2260 term
->esc_query
, TRUE
);
2265 compatibility(VT100
);
2267 if (term
->esc_nargs
!= 1) break;
2268 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2269 term
->printing
= TRUE
;
2270 term
->only_printing
= !term
->esc_query
;
2271 term
->print_state
= 0;
2272 term_print_setup(term
);
2273 } else if (term
->esc_args
[0] == 4 &&
2275 term_print_finish(term
);
2279 case 'l': /* toggle modes to low */
2281 compatibility(VT100
);
2284 for (i
= 0; i
< term
->esc_nargs
; i
++)
2285 toggle_mode(term
, term
->esc_args
[i
],
2286 term
->esc_query
, FALSE
);
2289 case 'g': /* clear tabs */
2290 compatibility(VT100
);
2291 if (term
->esc_nargs
== 1) {
2292 if (term
->esc_args
[0] == 0) {
2293 term
->tabs
[term
->curs
.x
] = FALSE
;
2294 } else if (term
->esc_args
[0] == 3) {
2296 for (i
= 0; i
< term
->cols
; i
++)
2297 term
->tabs
[i
] = FALSE
;
2301 case 'r': /* set scroll margins */
2302 compatibility(VT100
);
2303 if (term
->esc_nargs
<= 2) {
2305 top
= def(term
->esc_args
[0], 1) - 1;
2306 bot
= (term
->esc_nargs
<= 1
2307 || term
->esc_args
[1] == 0 ?
2309 def(term
->esc_args
[1], term
->rows
)) - 1;
2310 if (bot
>= term
->rows
)
2311 bot
= term
->rows
- 1;
2312 /* VTTEST Bug 9 - if region is less than 2 lines
2313 * don't change region.
2315 if (bot
- top
> 0) {
2320 * I used to think the cursor should be
2321 * placed at the top of the newly marginned
2322 * area. Apparently not: VMS TPU falls over
2325 * Well actually it should for
2328 term
->curs
.y
= (term
->dec_om ?
2331 term
->seen_disp_event
= TRUE
;
2335 case 'm': /* set graphics rendition */
2338 * A VT100 without the AVO only had one
2339 * attribute, either underline or
2340 * reverse video depending on the
2341 * cursor type, this was selected by
2345 * This is sometimes DIM, eg on the
2348 * This is sometimes INVIS various ANSI.
2350 * This like 22 disables BOLD, DIM and INVIS
2352 * The ANSI colours appear on any
2353 * terminal that has colour (obviously)
2354 * but the interaction between sgr0 and
2355 * the colours varies but is usually
2356 * related to the background colour
2357 * erase item. The interaction between
2358 * colour attributes and the mono ones
2359 * is also very implementation
2362 * The 39 and 49 attributes are likely
2363 * to be unimplemented.
2366 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2367 switch (def(term
->esc_args
[i
], 0)) {
2368 case 0: /* restore defaults */
2369 term
->curr_attr
= ATTR_DEFAULT
;
2371 case 1: /* enable bold */
2372 compatibility(VT100AVO
);
2373 term
->curr_attr
|= ATTR_BOLD
;
2375 case 21: /* (enable double underline) */
2376 compatibility(OTHER
);
2377 case 4: /* enable underline */
2378 compatibility(VT100AVO
);
2379 term
->curr_attr
|= ATTR_UNDER
;
2381 case 5: /* enable blink */
2382 compatibility(VT100AVO
);
2383 term
->curr_attr
|= ATTR_BLINK
;
2385 case 7: /* enable reverse video */
2386 term
->curr_attr
|= ATTR_REVERSE
;
2388 case 10: /* SCO acs off */
2389 compatibility(SCOANSI
);
2390 if (term
->cfg
.no_remote_charset
) break;
2391 term
->sco_acs
= 0; break;
2392 case 11: /* SCO acs on */
2393 compatibility(SCOANSI
);
2394 if (term
->cfg
.no_remote_charset
) break;
2395 term
->sco_acs
= 1; break;
2396 case 12: /* SCO acs on, |0x80 */
2397 compatibility(SCOANSI
);
2398 if (term
->cfg
.no_remote_charset
) break;
2399 term
->sco_acs
= 2; break;
2400 case 22: /* disable bold */
2401 compatibility2(OTHER
, VT220
);
2402 term
->curr_attr
&= ~ATTR_BOLD
;
2404 case 24: /* disable underline */
2405 compatibility2(OTHER
, VT220
);
2406 term
->curr_attr
&= ~ATTR_UNDER
;
2408 case 25: /* disable blink */
2409 compatibility2(OTHER
, VT220
);
2410 term
->curr_attr
&= ~ATTR_BLINK
;
2412 case 27: /* disable reverse video */
2413 compatibility2(OTHER
, VT220
);
2414 term
->curr_attr
&= ~ATTR_REVERSE
;
2425 term
->curr_attr
&= ~ATTR_FGMASK
;
2427 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2437 /* xterm-style bright foreground */
2438 term
->curr_attr
&= ~ATTR_FGMASK
;
2440 ((term
->esc_args
[i
] - 90 + 16)
2443 case 39: /* default-foreground */
2444 term
->curr_attr
&= ~ATTR_FGMASK
;
2445 term
->curr_attr
|= ATTR_DEFFG
;
2456 term
->curr_attr
&= ~ATTR_BGMASK
;
2458 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2468 /* xterm-style bright background */
2469 term
->curr_attr
&= ~ATTR_BGMASK
;
2471 ((term
->esc_args
[i
] - 100 + 16)
2474 case 49: /* default-background */
2475 term
->curr_attr
&= ~ATTR_BGMASK
;
2476 term
->curr_attr
|= ATTR_DEFBG
;
2481 term
->erase_char
= (' ' | ATTR_ASCII
|
2487 case 's': /* save cursor */
2488 save_cursor(term
, TRUE
);
2490 case 'u': /* restore cursor */
2491 save_cursor(term
, FALSE
);
2492 term
->seen_disp_event
= TRUE
;
2494 case 't': /* set page size - ie window height */
2496 * VT340/VT420 sequence DECSLPP, DEC only allows values
2497 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2498 * illegal values (eg first arg 1..9) for window changing
2501 if (term
->esc_nargs
<= 1
2502 && (term
->esc_args
[0] < 1 ||
2503 term
->esc_args
[0] >= 24)) {
2504 compatibility(VT340TEXT
);
2505 if (!term
->cfg
.no_remote_resize
)
2506 request_resize(term
->frontend
, term
->cols
,
2507 def(term
->esc_args
[0], 24));
2509 } else if (term
->esc_nargs
>= 1 &&
2510 term
->esc_args
[0] >= 1 &&
2511 term
->esc_args
[0] < 24) {
2512 compatibility(OTHER
);
2514 switch (term
->esc_args
[0]) {
2518 set_iconic(term
->frontend
, FALSE
);
2521 set_iconic(term
->frontend
, TRUE
);
2524 if (term
->esc_nargs
>= 3) {
2525 if (!term
->cfg
.no_remote_resize
)
2526 move_window(term
->frontend
,
2527 def(term
->esc_args
[1], 0),
2528 def(term
->esc_args
[2], 0));
2532 /* We should resize the window to a given
2533 * size in pixels here, but currently our
2534 * resizing code isn't healthy enough to
2539 set_zorder(term
->frontend
, TRUE
);
2542 /* move to bottom */
2543 set_zorder(term
->frontend
, FALSE
);
2546 refresh_window(term
->frontend
);
2549 if (term
->esc_nargs
>= 3) {
2550 if (!term
->cfg
.no_remote_resize
)
2551 request_resize(term
->frontend
,
2552 def(term
->esc_args
[2], term
->cfg
.width
),
2553 def(term
->esc_args
[1], term
->cfg
.height
));
2557 if (term
->esc_nargs
>= 2)
2558 set_zoomed(term
->frontend
,
2564 ldisc_send(term
->ldisc
,
2565 is_iconic(term
->frontend
) ?
2566 "\033[1t" : "\033[2t", 4, 0);
2570 get_window_pos(term
->frontend
, &x
, &y
);
2571 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2572 ldisc_send(term
->ldisc
, buf
, len
, 0);
2577 get_window_pixels(term
->frontend
, &x
, &y
);
2578 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2579 ldisc_send(term
->ldisc
, buf
, len
, 0);
2584 len
= sprintf(buf
, "\033[8;%d;%dt",
2585 term
->rows
, term
->cols
);
2586 ldisc_send(term
->ldisc
, buf
, len
, 0);
2591 * Hmmm. Strictly speaking we
2592 * should return `the size of the
2593 * screen in characters', but
2594 * that's not easy: (a) window
2595 * furniture being what it is it's
2596 * hard to compute, and (b) in
2597 * resize-font mode maximising the
2598 * window wouldn't change the
2599 * number of characters. *shrug*. I
2600 * think we'll ignore it for the
2601 * moment and see if anyone
2602 * complains, and then ask them
2603 * what they would like it to do.
2608 p
= get_window_title(term
->frontend
, TRUE
);
2610 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2611 ldisc_send(term
->ldisc
, p
, len
, 0);
2612 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2617 p
= get_window_title(term
->frontend
,FALSE
);
2619 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2620 ldisc_send(term
->ldisc
, p
, len
, 0);
2621 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2628 compatibility(SCOANSI
);
2629 scroll(term
, term
->marg_t
, term
->marg_b
,
2630 def(term
->esc_args
[0], 1), TRUE
);
2632 term
->wrapnext
= FALSE
;
2633 term
->seen_disp_event
= TRUE
;
2636 compatibility(SCOANSI
);
2637 scroll(term
, term
->marg_t
, term
->marg_b
,
2638 -def(term
->esc_args
[0], 1), TRUE
);
2640 term
->wrapnext
= FALSE
;
2641 term
->seen_disp_event
= TRUE
;
2643 case ANSI('|', '*'):
2644 /* VT420 sequence DECSNLS
2645 * Set number of lines on screen
2646 * VT420 uses VGA like hardware and can support any size in
2647 * reasonable range (24..49 AIUI) with no default specified.
2649 compatibility(VT420
);
2650 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2651 if (!term
->cfg
.no_remote_resize
)
2652 request_resize(term
->frontend
, term
->cols
,
2653 def(term
->esc_args
[0],
2658 case ANSI('|', '$'):
2659 /* VT340/VT420 sequence DECSCPP
2660 * Set number of columns per page
2661 * Docs imply range is only 80 or 132, but I'll allow any.
2663 compatibility(VT340TEXT
);
2664 if (term
->esc_nargs
<= 1) {
2665 if (!term
->cfg
.no_remote_resize
)
2666 request_resize(term
->frontend
,
2667 def(term
->esc_args
[0],
2668 term
->cfg
.width
), term
->rows
);
2672 case 'X': /* write N spaces w/o moving cursor */
2673 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2674 compatibility(ANSIMIN
);
2676 int n
= def(term
->esc_args
[0], 1);
2678 unsigned long *p
= term
->cpos
;
2679 if (n
> term
->cols
- term
->curs
.x
)
2680 n
= term
->cols
- term
->curs
.x
;
2681 cursplus
= term
->curs
;
2683 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2684 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2685 check_selection(term
, term
->curs
, cursplus
);
2687 *p
++ = term
->erase_char
;
2688 term
->seen_disp_event
= TRUE
;
2691 case 'x': /* report terminal characteristics */
2692 compatibility(VT100
);
2695 int i
= def(term
->esc_args
[0], 0);
2696 if (i
== 0 || i
== 1) {
2697 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2699 ldisc_send(term
->ldisc
, buf
, 20, 0);
2703 case 'Z': /* BackTab for xterm */
2704 compatibility(OTHER
);
2706 int i
= def(term
->esc_args
[0], 1);
2707 pos old_curs
= term
->curs
;
2709 for(;i
>0 && term
->curs
.x
>0; i
--) {
2712 } while (term
->curs
.x
>0 &&
2713 !term
->tabs
[term
->curs
.x
]);
2716 check_selection(term
, old_curs
, term
->curs
);
2719 case ANSI('L', '='):
2720 compatibility(OTHER
);
2721 term
->use_bce
= (term
->esc_args
[0] <= 0);
2722 term
->erase_char
= ERASE_CHAR
;
2724 term
->erase_char
= (' ' | ATTR_ASCII
|
2726 (ATTR_FGMASK
| ATTR_BGMASK
)));
2728 case ANSI('E', '='):
2729 compatibility(OTHER
);
2730 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2732 case ANSI('p', '"'):
2734 * Allow the host to make this emulator a
2735 * 'perfect' VT102. This first appeared in
2736 * the VT220, but we do need to get back to
2737 * PuTTY mode so I won't check it.
2739 * The arg in 40..42,50 are a PuTTY extension.
2740 * The 2nd arg, 8bit vs 7bit is not checked.
2742 * Setting VT102 mode should also change
2743 * the Fkeys to generate PF* codes as a
2744 * real VT102 has no Fkeys. The VT220 does
2745 * this, F11..F13 become ESC,BS,LF other
2746 * Fkeys send nothing.
2748 * Note ESC c will NOT change this!
2751 switch (term
->esc_args
[0]) {
2753 term
->compatibility_level
&= ~TM_VTXXX
;
2754 term
->compatibility_level
|= TM_VT102
;
2757 term
->compatibility_level
&= ~TM_VTXXX
;
2758 term
->compatibility_level
|= TM_VT220
;
2762 if (term
->esc_args
[0] > 60 &&
2763 term
->esc_args
[0] < 70)
2764 term
->compatibility_level
|= TM_VTXXX
;
2768 term
->compatibility_level
&= TM_VTXXX
;
2771 term
->compatibility_level
= TM_PUTTY
;
2774 term
->compatibility_level
= TM_SCOANSI
;
2778 term
->compatibility_level
= TM_PUTTY
;
2784 /* Change the response to CSI c */
2785 if (term
->esc_args
[0] == 50) {
2788 strcpy(term
->id_string
, "\033[?");
2789 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2791 strcat(term
->id_string
, ";");
2792 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2793 strcat(term
->id_string
, lbuf
);
2795 strcat(term
->id_string
, "c");
2798 /* Is this a good idea ?
2799 * Well we should do a soft reset at this point ...
2801 if (!has_compat(VT420
) && has_compat(VT100
)) {
2802 if (!term
->cfg
.no_remote_resize
) {
2803 if (term
->reset_132
)
2804 request_resize(132, 24);
2806 request_resize(80, 24);
2814 term
->osc_w
= FALSE
;
2816 case 'P': /* Linux palette sequence */
2817 term
->termstate
= SEEN_OSC_P
;
2818 term
->osc_strlen
= 0;
2820 case 'R': /* Linux palette reset */
2821 palette_reset(term
->frontend
);
2822 term_invalidate(term
);
2823 term
->termstate
= TOPLEVEL
;
2825 case 'W': /* word-set */
2826 term
->termstate
= SEEN_OSC_W
;
2839 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2843 * Grotty hack to support xterm and DECterm title
2844 * sequences concurrently.
2846 if (term
->esc_args
[0] == 2) {
2847 term
->esc_args
[0] = 1;
2850 /* else fall through */
2852 term
->termstate
= OSC_STRING
;
2853 term
->osc_strlen
= 0;
2858 * This OSC stuff is EVIL. It takes just one character to get into
2859 * sysline mode and it's not initially obvious how to get out.
2860 * So I've added CR and LF as string aborts.
2861 * This shouldn't effect compatibility as I believe embedded
2862 * control characters are supposed to be interpreted (maybe?)
2863 * and they don't display anything useful anyway.
2867 if (c
== '\012' || c
== '\015') {
2868 term
->termstate
= TOPLEVEL
;
2869 } else if (c
== 0234 || c
== '\007') {
2871 * These characters terminate the string; ST and BEL
2872 * terminate the sequence and trigger instant
2873 * processing of it, whereas ESC goes back to SEEN_ESC
2874 * mode unless it is followed by \, in which case it is
2875 * synonymous with ST in the first place.
2878 term
->termstate
= TOPLEVEL
;
2879 } else if (c
== '\033')
2880 term
->termstate
= OSC_MAYBE_ST
;
2881 else if (term
->osc_strlen
< OSC_STR_MAX
)
2882 term
->osc_string
[term
->osc_strlen
++] = c
;
2886 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2888 if (c
>= '0' && c
<= '9')
2890 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2892 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2895 term
->termstate
= TOPLEVEL
;
2898 term
->osc_string
[term
->osc_strlen
++] = val
;
2899 if (term
->osc_strlen
>= 7) {
2900 palette_set(term
->frontend
, term
->osc_string
[0],
2901 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2902 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2903 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2904 term_invalidate(term
);
2905 term
->termstate
= TOPLEVEL
;
2921 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2924 term
->termstate
= OSC_STRING
;
2925 term
->osc_strlen
= 0;
2929 term
->termstate
= TOPLEVEL
;
2930 term
->seen_disp_event
= TRUE
;
2933 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2936 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2939 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2942 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2945 * From the VT100 Manual
2946 * NOTE: The special graphics characters in the VT100
2947 * are different from those in the VT52
2949 * From VT102 manual:
2950 * 137 _ Blank - Same
2951 * 140 ` Reserved - Humm.
2952 * 141 a Solid rectangle - Similar
2953 * 142 b 1/ - Top half of fraction for the
2954 * 143 c 3/ - subscript numbers below.
2957 * 146 f Degrees - Same
2958 * 147 g Plus or minus - Same
2960 * 151 i Ellipsis (dots)
2963 * 154 l Bar at scan 0
2964 * 155 m Bar at scan 1
2965 * 156 n Bar at scan 2
2966 * 157 o Bar at scan 3 - Similar
2967 * 160 p Bar at scan 4 - Similar
2968 * 161 q Bar at scan 5 - Similar
2969 * 162 r Bar at scan 6 - Same
2970 * 163 s Bar at scan 7 - Similar
2985 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2988 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2991 move(term
, 0, 0, 0);
2994 if (term
->curs
.y
== 0)
2995 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2996 else if (term
->curs
.y
> 0)
2999 term
->wrapnext
= FALSE
;
3002 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3006 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3010 /* XXX Print cursor line */
3013 /* XXX Start controller mode */
3016 /* XXX Stop controller mode */
3020 term
->termstate
= VT52_Y1
;
3024 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
3027 term
->app_keypad_keys
= TRUE
;
3030 term
->app_keypad_keys
= FALSE
;
3033 /* XXX This should switch to VT100 mode not current or default
3034 * VT mode. But this will only have effect in a VT220+
3037 term
->vt52_mode
= FALSE
;
3038 term
->blink_is_real
= term
->cfg
.blinktext
;
3042 /* XXX Enter auto print mode */
3045 /* XXX Exit auto print mode */
3048 /* XXX Print screen */
3054 /* compatibility(ATARI) */
3055 move(term
, 0, 0, 0);
3056 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3060 /* compatibility(ATARI) */
3061 if (term
->curs
.y
<= term
->marg_b
)
3062 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
3065 /* compatibility(ATARI) */
3066 if (term
->curs
.y
<= term
->marg_b
)
3067 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
3070 /* compatibility(ATARI) */
3071 term
->termstate
= VT52_FG
;
3074 /* compatibility(ATARI) */
3075 term
->termstate
= VT52_BG
;
3078 /* compatibility(ATARI) */
3079 erase_lots(term
, FALSE
, TRUE
, FALSE
);
3083 /* compatibility(ATARI) */
3084 term
->cursor_on
= TRUE
;
3087 /* compatibility(ATARI) */
3088 term
->cursor_on
= FALSE
;
3090 /* case 'j': Save cursor position - broken on ST */
3091 /* case 'k': Restore cursor position */
3093 /* compatibility(ATARI) */
3094 erase_lots(term
, TRUE
, TRUE
, TRUE
);
3096 term
->wrapnext
= FALSE
;
3100 /* compatibility(ATARI) */
3101 erase_lots(term
, TRUE
, TRUE
, FALSE
);
3104 /* compatibility(ATARI) */
3105 term
->curr_attr
|= ATTR_REVERSE
;
3108 /* compatibility(ATARI) */
3109 term
->curr_attr
&= ~ATTR_REVERSE
;
3111 case 'v': /* wrap Autowrap on - Wyse style */
3112 /* compatibility(ATARI) */
3115 case 'w': /* Autowrap off */
3116 /* compatibility(ATARI) */
3121 /* compatibility(OTHER) */
3122 term
->vt52_bold
= FALSE
;
3123 term
->curr_attr
= ATTR_DEFAULT
;
3125 term
->erase_char
= (' ' | ATTR_ASCII
|
3127 (ATTR_FGMASK
| ATTR_BGMASK
)));
3130 /* compatibility(VI50) */
3131 term
->curr_attr
|= ATTR_UNDER
;
3134 /* compatibility(VI50) */
3135 term
->curr_attr
&= ~ATTR_UNDER
;
3138 /* compatibility(VI50) */
3139 term
->vt52_bold
= TRUE
;
3140 term
->curr_attr
|= ATTR_BOLD
;
3143 /* compatibility(VI50) */
3144 term
->vt52_bold
= FALSE
;
3145 term
->curr_attr
&= ~ATTR_BOLD
;
3151 term
->termstate
= VT52_Y2
;
3152 move(term
, term
->curs
.x
, c
- ' ', 0);
3155 term
->termstate
= TOPLEVEL
;
3156 move(term
, c
- ' ', term
->curs
.y
, 0);
3161 term
->termstate
= TOPLEVEL
;
3162 term
->curr_attr
&= ~ATTR_FGMASK
;
3163 term
->curr_attr
&= ~ATTR_BOLD
;
3164 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
3165 if ((c
& 0x8) || term
->vt52_bold
)
3166 term
->curr_attr
|= ATTR_BOLD
;
3169 term
->erase_char
= (' ' | ATTR_ASCII
|
3171 (ATTR_FGMASK
| ATTR_BGMASK
)));
3174 term
->termstate
= TOPLEVEL
;
3175 term
->curr_attr
&= ~ATTR_BGMASK
;
3176 term
->curr_attr
&= ~ATTR_BLINK
;
3177 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3179 /* Note: bold background */
3181 term
->curr_attr
|= ATTR_BLINK
;
3184 term
->erase_char
= (' ' | ATTR_ASCII
|
3186 (ATTR_FGMASK
| ATTR_BGMASK
)));
3189 default: break; /* placate gcc warning about enum use */
3191 if (term
->selstate
!= NO_SELECTION
) {
3192 pos cursplus
= term
->curs
;
3194 check_selection(term
, term
->curs
, cursplus
);
3198 term_print_flush(term
);
3203 * Compare two lines to determine whether they are sufficiently
3204 * alike to scroll-optimise one to the other. Return the degree of
3207 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3211 for (i
= n
= 0; i
< term
->cols
; i
++)
3212 n
+= (*a
++ == *b
++);
3218 * Given a context, update the window. Out of paranoia, we don't
3219 * allow WM_PAINT responses to do scrolling optimisations.
3221 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3223 int i
, j
, our_curs_y
, our_curs_x
;
3224 unsigned long rv
, cursor
;
3227 long cursor_background
= ERASE_CHAR
;
3228 unsigned long ticks
;
3229 #ifdef OPTIMISE_SCROLL
3230 struct scrollregion
*sr
;
3231 #endif /* OPTIMISE_SCROLL */
3234 * Check the visual bell state.
3236 if (term
->in_vbell
) {
3237 ticks
= GETTICKCOUNT();
3238 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3239 term
->in_vbell
= FALSE
;
3242 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3245 * screen array, disptop, scrtop,
3247 * cfg.blinkpc, blink_is_real, tblinker,
3248 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3251 /* Has the cursor position or type changed ? */
3252 if (term
->cursor_on
) {
3253 if (term
->has_focus
) {
3254 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3255 cursor
= TATTR_ACTCURS
;
3259 cursor
= TATTR_PASCURS
;
3261 cursor
|= TATTR_RIGHTCURS
;
3264 our_curs_y
= term
->curs
.y
- term
->disptop
;
3267 * Adjust the cursor position in the case where it's
3268 * resting on the right-hand half of a CJK wide character.
3269 * xterm's behaviour here, which seems adequate to me, is
3270 * to display the cursor covering the _whole_ character,
3271 * exactly as if it were one space to the left.
3273 unsigned long *ldata
= lineptr(term
->curs
.y
);
3274 our_curs_x
= term
->curs
.x
;
3275 if (our_curs_x
> 0 &&
3276 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3280 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3282 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3284 if (term
->dispcurs
> term
->disptext
&&
3285 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3286 term
->dispcurs
[-1] |= ATTR_INVALID
;
3287 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3288 term
->dispcurs
[1] |= ATTR_INVALID
;
3289 *term
->dispcurs
|= ATTR_INVALID
;
3292 term
->dispcurs
= NULL
;
3294 #ifdef OPTIMISE_SCROLL
3296 sr
= term
->scrollhead
;
3298 struct scrollregion
*next
= sr
->next
;
3299 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
3303 term
->scrollhead
= term
->scrolltail
= NULL
;
3304 #endif /* OPTIMISE_SCROLL */
3306 /* The normal screen data */
3307 for (i
= 0; i
< term
->rows
; i
++) {
3308 unsigned long *ldata
;
3310 int idx
, dirty_line
, dirty_run
, selected
;
3311 unsigned long attr
= 0;
3312 int updated_line
= 0;
3315 int last_run_dirty
= 0;
3317 scrpos
.y
= i
+ term
->disptop
;
3318 ldata
= lineptr(scrpos
.y
);
3319 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3321 idx
= i
* (term
->cols
+ 1);
3322 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3323 term
->disptext
[idx
+ term
->cols
]);
3324 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3326 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3327 unsigned long tattr
, tchar
;
3328 unsigned long *d
= ldata
+ j
;
3332 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3333 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3334 switch (tchar
& CSET_MASK
) {
3336 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3339 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3342 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3345 tattr
|= (tchar
& CSET_MASK
);
3347 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3350 /* Video reversing things */
3351 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3352 if (term
->seltype
== LEXICOGRAPHIC
)
3353 selected
= (posle(term
->selstart
, scrpos
) &&
3354 poslt(scrpos
, term
->selend
));
3356 selected
= (posPle(term
->selstart
, scrpos
) &&
3357 posPlt(scrpos
, term
->selend
));
3361 ^ (selected ? ATTR_REVERSE
: 0));
3363 /* 'Real' blinking ? */
3364 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3365 if (term
->has_focus
&& term
->tblinker
) {
3366 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
3368 tattr
&= ~ATTR_BLINK
;
3372 * Check the font we'll _probably_ be using to see if
3373 * the character is wide when we don't want it to be.
3375 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3376 if ((tattr
& ATTR_WIDE
) == 0 &&
3377 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3378 tattr
|= ATTR_NARROW
;
3379 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3380 tattr
|= ATTR_NARROW
;
3382 /* Cursor here ? Save the 'background' */
3383 if (i
== our_curs_y
&& j
== our_curs_x
) {
3384 cursor_background
= tattr
| tchar
;
3385 term
->dispcurs
= term
->disptext
+ idx
;
3388 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3391 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3392 j
- start
>= sizeof(ch
));
3394 /* Special hack for VT100 Linedraw glyphs */
3395 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3396 && tchar
<= 0xBD) break_run
= TRUE
;
3398 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3399 if ((tchar
| tattr
) == term
->disptext
[idx
])
3401 else if (!dirty_run
&& ccount
== 1)
3406 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3407 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3413 if (term
->ucsdata
->dbcs_screenfont
)
3414 last_run_dirty
= dirty_run
;
3415 dirty_run
= dirty_line
;
3418 if ((tchar
| tattr
) != term
->disptext
[idx
])
3420 ch
[ccount
++] = (char) tchar
;
3421 term
->disptext
[idx
] = tchar
| tattr
;
3423 /* If it's a wide char step along to the next one. */
3424 if (tattr
& ATTR_WIDE
) {
3425 if (++j
< term
->cols
) {
3429 * By construction above, the cursor should not
3430 * be on the right-hand half of this character.
3433 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3434 if (term
->disptext
[idx
] != *d
)
3436 term
->disptext
[idx
] = *d
;
3440 if (dirty_run
&& ccount
> 0) {
3441 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3445 /* Cursor on this line ? (and changed) */
3446 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3447 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3448 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3449 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3450 term
->curstype
= cursor
;
3456 * Flick the switch that says if blinking things should be shown or hidden.
3459 void term_blink(Terminal
*term
, int flg
)
3461 long now
, blink_diff
;
3463 now
= GETTICKCOUNT();
3464 blink_diff
= now
- term
->last_tblink
;
3466 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3467 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3468 term
->last_tblink
= now
;
3469 term
->tblinker
= !term
->tblinker
;
3474 term
->last_blink
= now
;
3478 blink_diff
= now
- term
->last_blink
;
3480 /* Make sure the cursor blinks no faster than system blink rate */
3481 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3484 term
->last_blink
= now
;
3485 term
->blinker
= !term
->blinker
;
3489 * Invalidate the whole screen so it will be repainted in full.
3491 void term_invalidate(Terminal
*term
)
3495 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3496 term
->disptext
[i
] = ATTR_INVALID
;
3500 * Paint the window in response to a WM_PAINT message.
3502 void term_paint(Terminal
*term
, Context ctx
,
3503 int left
, int top
, int right
, int bottom
, int immediately
)
3506 if (left
< 0) left
= 0;
3507 if (top
< 0) top
= 0;
3508 if (right
>= term
->cols
) right
= term
->cols
-1;
3509 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3511 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3512 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3513 LATTR_MODE
) == LATTR_NORM
)
3514 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3515 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3517 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3518 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3521 /* This should happen soon enough, also for some reason it sometimes
3522 * fails to actually do anything when re-sizing ... painting the wrong
3526 do_paint (term
, ctx
, FALSE
);
3530 * Attempt to scroll the scrollback. The second parameter gives the
3531 * position we want to scroll to; the first is +1 to denote that
3532 * this position is relative to the beginning of the scrollback, -1
3533 * to denote it is relative to the end, and 0 to denote that it is
3534 * relative to the current position.
3536 void term_scroll(Terminal
*term
, int rel
, int where
)
3538 int sbtop
= -sblines(term
);
3539 #ifdef OPTIMISE_SCROLL
3540 int olddisptop
= term
->disptop
;
3542 #endif /* OPTIMISE_SCROLL */
3544 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3545 if (term
->disptop
< sbtop
)
3546 term
->disptop
= sbtop
;
3547 if (term
->disptop
> 0)
3550 #ifdef OPTIMISE_SCROLL
3551 shift
= (term
->disptop
- olddisptop
);
3552 if (shift
< term
->rows
&& shift
> -term
->rows
)
3553 scroll_display(term
, 0, term
->rows
- 1, shift
);
3554 #endif /* OPTIMISE_SCROLL */
3558 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3561 wchar_t *wbptr
; /* where next char goes within workbuf */
3563 int wblen
= 0; /* workbuf len */
3564 int buflen
; /* amount of memory allocated to workbuf */
3566 buflen
= 5120; /* Default size */
3567 workbuf
= snewn(buflen
, wchar_t);
3568 wbptr
= workbuf
; /* start filling here */
3569 old_top_x
= top
.x
; /* needed for rect==1 */
3571 while (poslt(top
, bottom
)) {
3573 unsigned long *ldata
= lineptr(top
.y
);
3577 * nlpos will point at the maximum position on this line we
3578 * should copy up to. So we start it at the end of the
3582 nlpos
.x
= term
->cols
;
3585 * ... move it backwards if there's unused space at the end
3586 * of the line (and also set `nl' if this is the case,
3587 * because in normal selection mode this means we need a
3588 * newline at the end)...
3590 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3591 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3592 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3593 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3594 && poslt(top
, nlpos
))
3596 if (poslt(nlpos
, bottom
))
3598 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3599 /* Ignore the last char on the line in a WRAPPED2 line. */
3604 * ... and then clip it to the terminal x coordinate if
3605 * we're doing rectangular selection. (In this case we
3606 * still did the above, so that copying e.g. the right-hand
3607 * column from a table doesn't fill with spaces on the
3611 if (nlpos
.x
> bottom
.x
)
3613 nl
= (top
.y
< bottom
.y
);
3616 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3619 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3621 wchar_t cbuf
[16], *p
;
3622 int uc
= (ldata
[top
.x
] & 0xFFFF);
3625 if (uc
== UCSWIDE
) {
3630 switch (uc
& CSET_MASK
) {
3632 if (!term
->cfg
.rawcnp
) {
3633 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3637 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3640 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3643 switch (uc
& CSET_MASK
) {
3645 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3648 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3652 set
= (uc
& CSET_MASK
);
3653 c
= (uc
& CHAR_MASK
);
3657 if (DIRECT_FONT(uc
)) {
3658 if (c
>= ' ' && c
!= 0x7F) {
3662 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3664 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3665 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3669 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3673 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3680 for (p
= cbuf
; *p
; p
++) {
3681 /* Enough overhead for trailing NL and nul */
3682 if (wblen
>= buflen
- 16) {
3684 workbuf
= sresize(workbuf
, buflen
, wchar_t);
3685 wbptr
= workbuf
+ wblen
;
3694 for (i
= 0; i
< sel_nl_sz
; i
++) {
3696 *wbptr
++ = sel_nl
[i
];
3700 top
.x
= rect ? old_top_x
: 0;
3702 #if SELECTION_NUL_TERMINATED
3706 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3707 if (buflen
> 0) /* indicates we allocated this buffer */
3711 void term_copyall(Terminal
*term
)
3714 top
.y
= -sblines(term
);
3716 clipme(term
, top
, term
->curs
, 0);
3720 * The wordness array is mainly for deciding the disposition of the
3721 * US-ASCII characters.
3723 static int wordtype(Terminal
*term
, int uc
)
3726 int start
, end
, ctype
;
3728 static const struct ucsword ucs_words
[] = {
3734 0x037e, 0x037e, 1}, /* Greek question mark */
3736 0x0387, 0x0387, 1}, /* Greek ano teleia */
3738 0x055a, 0x055f, 1}, /* Armenian punctuation */
3740 0x0589, 0x0589, 1}, /* Armenian full stop */
3742 0x0700, 0x070d, 1}, /* Syriac punctuation */
3744 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3746 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3748 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3750 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3752 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3754 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3756 0x2000, 0x200a, 0}, /* Various spaces */
3758 0x2070, 0x207f, 2}, /* superscript */
3760 0x2080, 0x208f, 2}, /* subscript */
3762 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3764 0x3000, 0x3000, 0}, /* ideographic space */
3766 0x3001, 0x3020, 1}, /* ideographic punctuation */
3768 0x303f, 0x309f, 3}, /* Hiragana */
3770 0x30a0, 0x30ff, 3}, /* Katakana */
3772 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3774 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3776 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3778 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3780 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3782 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3784 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3786 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3788 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3792 const struct ucsword
*wptr
;
3794 uc
&= (CSET_MASK
| CHAR_MASK
);
3796 switch (uc
& CSET_MASK
) {
3798 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3801 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3804 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3807 switch (uc
& CSET_MASK
) {
3809 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3812 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3816 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3817 * fail as there's such a thing as a double width space. :-(
3819 if (term
->ucsdata
->dbcs_screenfont
&&
3820 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3824 return term
->wordness
[uc
];
3826 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3827 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3835 * Spread the selection outwards according to the selection mode.
3837 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3839 unsigned long *ldata
;
3841 int topy
= -sblines(term
);
3843 ldata
= lineptr(p
.y
);
3845 switch (term
->selmode
) {
3848 * In this mode, every character is a separate unit, except
3849 * for runs of spaces at the end of a non-wrapping line.
3851 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3852 unsigned long *q
= ldata
+ term
->cols
;
3853 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3855 if (q
== ldata
+ term
->cols
)
3857 if (p
.x
>= q
- ldata
)
3858 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3863 * In this mode, the units are maximal runs of characters
3864 * whose `wordness' has the same value.
3866 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3869 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3870 term
->cols
-1 : term
->cols
);
3871 if (p
.x
< maxcols
-1) {
3872 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3877 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3878 unsigned long *ldata2
;
3879 ldata2
= lineptr(p
.y
+1);
3880 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3893 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3898 unsigned long *ldata2
;
3902 ldata2
= lineptr(p
.y
-1);
3903 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3904 term
->cols
-1 : term
->cols
);
3905 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3906 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
3921 * In this mode, every line is a unit.
3923 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3929 static void sel_spread(Terminal
*term
)
3931 if (term
->seltype
== LEXICOGRAPHIC
) {
3932 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3933 decpos(term
->selend
);
3934 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3935 incpos(term
->selend
);
3939 void term_do_paste(Terminal
*term
)
3944 get_clip(term
->frontend
, &data
, &len
);
3945 if (data
&& len
> 0) {
3948 term_seen_key_event(term
); /* pasted data counts */
3950 if (term
->paste_buffer
)
3951 sfree(term
->paste_buffer
);
3952 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3953 term
->paste_buffer
= snewn(len
, wchar_t);
3956 while (p
< data
+ len
) {
3957 while (p
< data
+ len
&&
3958 !(p
<= data
+ len
- sel_nl_sz
&&
3959 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3964 for (i
= 0; i
< p
- q
; i
++) {
3965 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3969 if (p
<= data
+ len
- sel_nl_sz
&&
3970 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3971 term
->paste_buffer
[term
->paste_len
++] = '\015';
3977 /* Assume a small paste will be OK in one go. */
3978 if (term
->paste_len
< 256) {
3980 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3981 if (term
->paste_buffer
)
3982 sfree(term
->paste_buffer
);
3983 term
->paste_buffer
= 0;
3984 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3987 get_clip(term
->frontend
, NULL
, NULL
);
3990 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
3991 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
3994 unsigned long *ldata
;
3995 int raw_mouse
= (term
->xterm_mouse
&&
3996 !term
->cfg
.no_mouse_rep
&&
3997 !(term
->cfg
.mouse_override
&& shift
));
3998 int default_seltype
;
4002 if (a
== MA_DRAG
&& !raw_mouse
)
4003 term_scroll(term
, 0, -1);
4005 if (y
>= term
->rows
) {
4007 if (a
== MA_DRAG
&& !raw_mouse
)
4008 term_scroll(term
, 0, +1);
4017 if (x
>= term
->cols
)
4020 selpoint
.y
= y
+ term
->disptop
;
4022 ldata
= lineptr(selpoint
.y
);
4023 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
4027 int encstate
= 0, r
, c
;
4034 encstate
= 0x20; /* left button down */
4045 case MBT_WHEEL_DOWN
:
4048 default: break; /* placate gcc warning about enum use */
4052 if (term
->xterm_mouse
== 1)
4058 term
->mouse_is_down
= 0;
4061 if (term
->mouse_is_down
== braw
)
4063 term
->mouse_is_down
= braw
;
4065 default: break; /* placate gcc warning about enum use */
4074 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
4075 ldisc_send(term
->ldisc
, abuf
, 6, 0);
4081 * Set the selection type (rectangular or normal) at the start
4082 * of a selection attempt, from the state of Alt.
4084 if (!alt
^ !term
->cfg
.rect_select
)
4085 default_seltype
= RECTANGULAR
;
4087 default_seltype
= LEXICOGRAPHIC
;
4089 if (term
->selstate
== NO_SELECTION
) {
4090 term
->seltype
= default_seltype
;
4093 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
4095 term
->selstate
= ABOUT_TO
;
4096 term
->seltype
= default_seltype
;
4097 term
->selanchor
= selpoint
;
4098 term
->selmode
= SM_CHAR
;
4099 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
4101 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
4102 term
->selstate
= DRAGGING
;
4103 term
->selstart
= term
->selanchor
= selpoint
;
4104 term
->selend
= term
->selstart
;
4105 incpos(term
->selend
);
4107 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
4108 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
4109 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
4111 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
4112 term
->selstate
== SELECTED
) {
4113 if (term
->seltype
== LEXICOGRAPHIC
) {
4115 * For normal selection, we extend by moving
4116 * whichever end of the current selection is closer
4119 if (posdiff(selpoint
, term
->selstart
) <
4120 posdiff(term
->selend
, term
->selstart
) / 2) {
4121 term
->selanchor
= term
->selend
;
4122 decpos(term
->selanchor
);
4124 term
->selanchor
= term
->selstart
;
4128 * For rectangular selection, we have a choice of
4129 * _four_ places to put selanchor and selpoint: the
4130 * four corners of the selection.
4132 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
4133 term
->selanchor
.x
= term
->selend
.x
-1;
4135 term
->selanchor
.x
= term
->selstart
.x
;
4137 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
4138 term
->selanchor
.y
= term
->selend
.y
;
4140 term
->selanchor
.y
= term
->selstart
.y
;
4142 term
->selstate
= DRAGGING
;
4144 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
4145 term
->selanchor
= selpoint
;
4146 term
->selstate
= DRAGGING
;
4147 if (term
->seltype
== LEXICOGRAPHIC
) {
4149 * For normal selection, we set (selstart,selend) to
4150 * (selpoint,selanchor) in some order.
4152 if (poslt(selpoint
, term
->selanchor
)) {
4153 term
->selstart
= selpoint
;
4154 term
->selend
= term
->selanchor
;
4155 incpos(term
->selend
);
4157 term
->selstart
= term
->selanchor
;
4158 term
->selend
= selpoint
;
4159 incpos(term
->selend
);
4163 * For rectangular selection, we may need to
4164 * interchange x and y coordinates (if the user has
4165 * dragged in the -x and +y directions, or vice versa).
4167 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
4168 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
4169 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
4170 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
4173 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
4175 if (term
->selstate
== DRAGGING
) {
4177 * We've completed a selection. We now transfer the
4178 * data to the clipboard.
4180 clipme(term
, term
->selstart
, term
->selend
,
4181 (term
->seltype
== RECTANGULAR
));
4182 term
->selstate
= SELECTED
;
4184 term
->selstate
= NO_SELECTION
;
4185 } else if (bcooked
== MBT_PASTE
4187 #if MULTICLICK_ONLY_EVENT
4188 || a
== MA_2CLK
|| a
== MA_3CLK
4191 request_paste(term
->frontend
);
4197 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
4198 unsigned int modifiers
, unsigned int flags
)
4202 int prependesc
= FALSE
;
4206 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
4207 for (i
= 0; i
< tlen
; i
++)
4208 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
4209 fprintf(stderr
, "\n");
4213 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
4216 /* Currently, Meta always just prefixes everything with ESC. */
4217 if (modifiers
& PKM_META
)
4219 modifiers
&= ~PKM_META
;
4222 * Alt is only used for Alt+keypad, which isn't supported yet, so
4225 modifiers
&= ~PKM_ALT
;
4227 /* Standard local function keys */
4228 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
4230 if (keysym
== PK_PAGEUP
)
4231 /* scroll up one page */;
4232 if (keysym
== PK_PAGEDOWN
)
4233 /* scroll down on page */;
4234 if (keysym
== PK_INSERT
)
4235 term_do_paste(term
);
4238 if (keysym
== PK_PAGEUP
)
4239 /* scroll up one line */;
4240 if (keysym
== PK_PAGEDOWN
)
4241 /* scroll down one line */;
4242 /* Control-Numlock for app-keypad mode switch */
4243 if (keysym
== PK_PF1
)
4244 term
->app_keypad_keys
^= 1;
4248 if (modifiers
& PKM_ALT
) {
4249 /* Alt+F4 (close) */
4250 /* Alt+Return (full screen) */
4251 /* Alt+Space (system menu) */
4254 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
4255 text
[0] >= 0x20 && text
[0] <= 0x7e) {
4256 /* ASCII chars + Control */
4257 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
4258 (text
[0] >= 0x61 && text
[0] <= 0x7a))
4262 * Control-2 should return ^@ (0x00), Control-6 should return
4263 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4264 * the DOS keyboard handling did it, and we have nothing better
4265 * to do with the key combo in question, we'll also map
4266 * Control-Backquote to ^\ (0x1C).
4269 case ' ': text
[0] = 0x00; break;
4270 case '-': text
[0] = 0x1f; break;
4271 case '/': text
[0] = 0x1f; break;
4272 case '2': text
[0] = 0x00; break;
4273 case '3': text
[0] = 0x1b; break;
4274 case '4': text
[0] = 0x1c; break;
4275 case '5': text
[0] = 0x1d; break;
4276 case '6': text
[0] = 0x1e; break;
4277 case '7': text
[0] = 0x1f; break;
4278 case '8': text
[0] = 0x7f; break;
4279 case '`': text
[0] = 0x1c; break;
4284 /* Nethack keypad */
4285 if (term
->cfg
.nethack_keypad
) {
4288 case PK_KP1
: c
= 'b'; break;
4289 case PK_KP2
: c
= 'j'; break;
4290 case PK_KP3
: c
= 'n'; break;
4291 case PK_KP4
: c
= 'h'; break;
4292 case PK_KP5
: c
= '.'; break;
4293 case PK_KP6
: c
= 'l'; break;
4294 case PK_KP7
: c
= 'y'; break;
4295 case PK_KP8
: c
= 'k'; break;
4296 case PK_KP9
: c
= 'u'; break;
4297 default: break; /* else gcc warns `enum value not used' */
4301 if (modifiers
& PKM_CONTROL
)
4303 else if (modifiers
& PKM_SHIFT
)
4311 /* Numeric Keypad */
4312 if (PK_ISKEYPAD(keysym
)) {
4316 * In VT400 mode, PFn always emits an escape sequence. In
4317 * Linux and tilde modes, this only happens in app keypad mode.
4319 if (term
->cfg
.funky_type
== FUNKY_VT400
||
4320 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
4321 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
4322 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
4324 case PK_PF1
: xkey
= 'P'; break;
4325 case PK_PF2
: xkey
= 'Q'; break;
4326 case PK_PF3
: xkey
= 'R'; break;
4327 case PK_PF4
: xkey
= 'S'; break;
4328 default: break; /* else gcc warns `enum value not used' */
4331 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
4333 case PK_KP0
: xkey
= 'p'; break;
4334 case PK_KP1
: xkey
= 'q'; break;
4335 case PK_KP2
: xkey
= 'r'; break;
4336 case PK_KP3
: xkey
= 's'; break;
4337 case PK_KP4
: xkey
= 't'; break;
4338 case PK_KP5
: xkey
= 'u'; break;
4339 case PK_KP6
: xkey
= 'v'; break;
4340 case PK_KP7
: xkey
= 'w'; break;
4341 case PK_KP8
: xkey
= 'x'; break;
4342 case PK_KP9
: xkey
= 'y'; break;
4343 case PK_KPDECIMAL
: xkey
= 'n'; break;
4344 case PK_KPENTER
: xkey
= 'M'; break;
4345 default: break; /* else gcc warns `enum value not used' */
4347 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
4349 * xterm can't see the layout of the keypad, so it has
4350 * to rely on the X keysyms returned by the keys.
4351 * Hence, we look at the strings here, not the PuTTY
4352 * keysyms (which describe the layout).
4356 if (modifiers
& PKM_SHIFT
)
4361 case '/': xkey
= 'o'; break;
4362 case '*': xkey
= 'j'; break;
4363 case '-': xkey
= 'm'; break;
4367 * In all other modes, we try to retain the layout of
4368 * the DEC keypad in application mode.
4372 /* This key covers the '-' and ',' keys on a VT220 */
4373 if (modifiers
& PKM_SHIFT
)
4374 xkey
= 'm'; /* VT220 '-' */
4376 xkey
= 'l'; /* VT220 ',' */
4378 case PK_KPMINUS
: xkey
= 'm'; break;
4379 case PK_KPCOMMA
: xkey
= 'l'; break;
4380 default: break; /* else gcc warns `enum value not used' */
4385 if (term
->vt52_mode
) {
4386 if (xkey
>= 'P' && xkey
<= 'S')
4387 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4389 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
4391 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4394 /* Not in application mode -- treat the number pad as arrow keys? */
4395 if ((flags
& PKF_NUMLOCK
) == 0) {
4397 case PK_KP0
: keysym
= PK_INSERT
; break;
4398 case PK_KP1
: keysym
= PK_END
; break;
4399 case PK_KP2
: keysym
= PK_DOWN
; break;
4400 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
4401 case PK_KP4
: keysym
= PK_LEFT
; break;
4402 case PK_KP5
: keysym
= PK_REST
; break;
4403 case PK_KP6
: keysym
= PK_RIGHT
; break;
4404 case PK_KP7
: keysym
= PK_HOME
; break;
4405 case PK_KP8
: keysym
= PK_UP
; break;
4406 case PK_KP9
: keysym
= PK_PAGEUP
; break;
4407 default: break; /* else gcc warns `enum value not used' */
4412 /* Miscellaneous keys */
4419 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
4420 else if (modifiers
== PKM_SHIFT
)
4421 /* We do the opposite of what is configured */
4422 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
4428 else if (modifiers
== PKM_SHIFT
)
4429 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
4432 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4434 if (modifiers
== PKM_CONTROL
)
4439 case PK_KPENTER
: /* Odd keypad modes handled above */
4440 if (modifiers
== 0) {
4442 if (term
->cr_lf_return
)
4446 default: break; /* else gcc warns `enum value not used' */
4449 /* SCO function keys and editing keys */
4450 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
4451 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
4452 static char const codes
[] =
4453 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4454 int index
= keysym
- PK_F1
;
4456 if (modifiers
& PKM_SHIFT
) index
+= 12;
4457 if (modifiers
& PKM_CONTROL
) index
+= 24;
4458 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
4461 if (PK_ISEDITING(keysym
)) {
4465 case PK_DELETE
: *p
++ = 0x7f; goto done
;
4466 case PK_HOME
: xkey
= 'H'; break;
4467 case PK_INSERT
: xkey
= 'L'; break;
4468 case PK_END
: xkey
= 'F'; break;
4469 case PK_PAGEUP
: xkey
= 'I'; break;
4470 case PK_PAGEDOWN
: xkey
= 'G'; break;
4471 default: break; /* else gcc warns `enum value not used' */
4473 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4477 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
4480 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
4481 /* Xterm shuffles these keys, apparently. */
4483 case PK_HOME
: keysym
= PK_INSERT
; break;
4484 case PK_INSERT
: keysym
= PK_HOME
; break;
4485 case PK_DELETE
: keysym
= PK_END
; break;
4486 case PK_END
: keysym
= PK_PAGEUP
; break;
4487 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
4488 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
4489 default: break; /* else gcc warns `enum value not used' */
4494 if (term
->cfg
.rxvt_homeend
&&
4495 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
4496 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
4500 if (term
->vt52_mode
) {
4504 * A real VT52 doesn't have these, and a VT220 doesn't
4505 * send anything for them in VT52 mode.
4508 case PK_HOME
: xkey
= 'H'; break;
4509 case PK_INSERT
: xkey
= 'L'; break;
4510 case PK_DELETE
: xkey
= 'M'; break;
4511 case PK_END
: xkey
= 'E'; break;
4512 case PK_PAGEUP
: xkey
= 'I'; break;
4513 case PK_PAGEDOWN
: xkey
= 'G'; break;
4514 default: break; /* else gcc warns `enum value not used' */
4516 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4521 case PK_HOME
: code
= 1; break;
4522 case PK_INSERT
: code
= 2; break;
4523 case PK_DELETE
: code
= 3; break;
4524 case PK_END
: code
= 4; break;
4525 case PK_PAGEUP
: code
= 5; break;
4526 case PK_PAGEDOWN
: code
= 6; break;
4527 default: break; /* else gcc warns `enum value not used' */
4529 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
4533 if (PK_ISFKEY(keysym
)) {
4534 /* Map Shift+F1-F10 to F11-F20 */
4535 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
4537 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
4539 /* XXX This overrides the XTERM/VT52 mode below */
4541 if (keysym
>= PK_F6
) offt
++;
4542 if (keysym
>= PK_F12
) offt
++;
4543 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
4544 'P' + keysym
- PK_F1
- offt
);
4547 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
4548 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
4551 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
4552 if (term
->vt52_mode
)
4553 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
4555 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
4558 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
4562 if (PK_ISCURSOR(keysym
)) {
4566 case PK_UP
: xkey
= 'A'; break;
4567 case PK_DOWN
: xkey
= 'B'; break;
4568 case PK_RIGHT
: xkey
= 'C'; break;
4569 case PK_LEFT
: xkey
= 'D'; break;
4570 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
4571 default: break; /* else gcc warns `enum value not used' */
4573 if (term
->vt52_mode
)
4574 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4576 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
4578 /* Useful mapping of Ctrl-arrows */
4579 if (modifiers
== PKM_CONTROL
)
4583 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4585 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4591 if (p
> output
|| tlen
> 0) {
4593 * Interrupt an ongoing paste. I'm not sure
4594 * this is sensible, but for the moment it's
4595 * preferable to having to faff about buffering
4601 * We need not bother about stdin backlogs
4602 * here, because in GUI PuTTY we can't do
4603 * anything about it anyway; there's no means
4604 * of asking Windows to hold off on KEYDOWN
4605 * messages. We _have_ to buffer everything
4608 term_seen_key_event(term
);
4612 fprintf(stderr
, "sending ESC\n");
4614 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
4619 fprintf(stderr
, "sending %d bytes:", p
- output
);
4620 for (i
= 0; i
< p
- output
; i
++)
4621 fprintf(stderr
, " %02x", output
[i
]);
4622 fprintf(stderr
, "\n");
4624 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
4625 } else if (tlen
> 0) {
4627 fprintf(stderr
, "sending %d unichars:", tlen
);
4628 for (i
= 0; i
< tlen
; i
++)
4629 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
4630 fprintf(stderr
, "\n");
4632 luni_send(term
->ldisc
, text
, tlen
, 1);
4637 void term_nopaste(Terminal
*term
)
4639 if (term
->paste_len
== 0)
4641 sfree(term
->paste_buffer
);
4642 term
->paste_buffer
= NULL
;
4643 term
->paste_len
= 0;
4646 int term_paste_pending(Terminal
*term
)
4648 return term
->paste_len
!= 0;
4651 void term_paste(Terminal
*term
)
4653 long now
, paste_diff
;
4655 if (term
->paste_len
== 0)
4658 /* Don't wait forever to paste */
4659 if (term
->paste_hold
) {
4660 now
= GETTICKCOUNT();
4661 paste_diff
= now
- term
->last_paste
;
4662 if (paste_diff
>= 0 && paste_diff
< 450)
4665 term
->paste_hold
= 0;
4667 while (term
->paste_pos
< term
->paste_len
) {
4669 while (n
+ term
->paste_pos
< term
->paste_len
) {
4670 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4674 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4675 term
->paste_pos
+= n
;
4677 if (term
->paste_pos
< term
->paste_len
) {
4678 term
->paste_hold
= 1;
4682 sfree(term
->paste_buffer
);
4683 term
->paste_buffer
= NULL
;
4684 term
->paste_len
= 0;
4687 static void deselect(Terminal
*term
)
4689 term
->selstate
= NO_SELECTION
;
4690 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4693 void term_deselect(Terminal
*term
)
4699 int term_ldisc(Terminal
*term
, int option
)
4701 if (option
== LD_ECHO
)
4702 return term
->term_echoing
;
4703 if (option
== LD_EDIT
)
4704 return term
->term_editing
;
4709 * from_backend(), to get data from the backend for the terminal.
4711 int from_backend(void *vterm
, int is_stderr
, const char *data
, int len
)
4713 Terminal
*term
= (Terminal
*)vterm
;
4717 bufchain_add(&term
->inbuf
, data
, len
);
4719 if (!term
->in_term_out
) {
4720 term
->in_term_out
= TRUE
;
4721 term_blink(term
, 1);
4723 term
->in_term_out
= FALSE
;
4727 * term_out() always completely empties inbuf. Therefore,
4728 * there's no reason at all to return anything other than zero
4729 * from this function, because there _can't_ be a question of
4730 * the remote side needing to wait until term_out() has cleared
4733 * This is a slightly suboptimal way to deal with SSH2 - in
4734 * principle, the window mechanism would allow us to continue
4735 * to accept data on forwarded ports and X connections even
4736 * while the terminal processing was going slowly - but we
4737 * can't do the 100% right thing without moving the terminal
4738 * processing into a separate thread, and that might hurt
4739 * portability. So we manage stdout buffering the old SSH1 way:
4740 * if the terminal processing goes slowly, the whole SSH
4741 * connection stops accepting data until it's ready.
4743 * In practice, I can't imagine this causing serious trouble.
4748 void term_provide_logctx(Terminal
*term
, void *logctx
)
4750 term
->logctx
= logctx
;