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 const char sco2ansicolour
[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
61 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
62 const wchar_t sel_nl
[] = SEL_NL
;
65 * Fetch the character at a particular position in a line array,
66 * for purposes of `wordtype'. The reason this isn't just a simple
67 * array reference is that if the character we find is UCSWIDE,
68 * then we must look one space further to the left.
70 #define UCSGET(a, x) \
71 ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
72 (a)[(x)-1] : (a)[(x)] )
75 * Internal prototypes.
77 static unsigned long *resizeline(unsigned long *, int);
78 static unsigned long *lineptr(Terminal
*, int, int);
79 static void do_paint(Terminal
*, Context
, int);
80 static void erase_lots(Terminal
*, int, int, int);
81 static void swap_screen(Terminal
*, int, int, int);
82 static void update_sbar(Terminal
*);
83 static void deselect(Terminal
*);
84 static void term_print_finish(Terminal
*);
85 #ifdef OPTIMISE_SCROLL
86 static void scroll_display(Terminal
*, int, int, int);
87 #endif /* OPTIMISE_SCROLL */
90 * Resize a line to make it `cols' columns wide.
92 static unsigned long *resizeline(unsigned long *line
, int cols
)
95 unsigned long lineattrs
;
97 if (line
[0] != (unsigned long)cols
) {
99 * This line is the wrong length, which probably means it
100 * hasn't been accessed since a resize. Resize it now.
103 lineattrs
= line
[oldlen
+ 1];
104 line
= sresize(line
, 2 + cols
, TTYPE
);
106 for (i
= oldlen
; i
< cols
; i
++)
107 line
[i
+ 1] = ERASE_CHAR
;
108 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
115 * Get the number of lines in the scrollback.
117 static int sblines(Terminal
*term
)
119 int sblines
= count234(term
->scrollback
);
120 if (term
->cfg
.erase_to_scrollback
&&
121 term
->alt_which
&& term
->alt_screen
) {
122 sblines
+= term
->alt_sblines
;
128 * Retrieve a line of the screen or of the scrollback, according to
129 * whether the y coordinate is non-negative or negative
132 static unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
134 unsigned long *line
, *newline
;
139 whichtree
= term
->screen
;
143 if (term
->cfg
.erase_to_scrollback
&&
144 term
->alt_which
&& term
->alt_screen
) {
145 altlines
= term
->alt_sblines
;
148 whichtree
= term
->scrollback
;
149 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
151 whichtree
= term
->alt_screen
;
152 treeindex
= y
+ term
->alt_sblines
;
153 /* treeindex = y + count234(term->alt_screen); */
156 line
= index234(whichtree
, treeindex
);
158 /* We assume that we don't screw up and retrieve something out of range. */
159 assert(line
!= NULL
);
161 newline
= resizeline(line
, term
->cols
);
162 if (newline
!= line
) {
163 delpos234(whichtree
, treeindex
);
164 addpos234(whichtree
, newline
, treeindex
);
171 #define lineptr(x) lineptr(term,x,__LINE__)
174 * Set up power-on settings for the terminal.
176 static void power_on(Terminal
*term
)
178 term
->curs
.x
= term
->curs
.y
= 0;
179 term
->alt_x
= term
->alt_y
= 0;
180 term
->savecurs
.x
= term
->savecurs
.y
= 0;
181 term
->alt_t
= term
->marg_t
= 0;
182 if (term
->rows
!= -1)
183 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
185 term
->alt_b
= term
->marg_b
= 0;
186 if (term
->cols
!= -1) {
188 for (i
= 0; i
< term
->cols
; i
++)
189 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
191 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
192 term
->alt_ins
= term
->insert
= FALSE
;
193 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
194 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
195 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
196 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
198 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
199 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
201 term
->in_vbell
= FALSE
;
203 term
->big_cursor
= 0;
204 term
->default_attr
= term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
205 term
->term_editing
= term
->term_echoing
= FALSE
;
206 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
207 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
208 term
->use_bce
= term
->cfg
.bce
;
209 term
->blink_is_real
= term
->cfg
.blinktext
;
210 term
->erase_char
= ERASE_CHAR
;
212 term_print_finish(term
);
215 for (i
= 0; i
< 256; i
++)
216 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
219 swap_screen(term
, 1, FALSE
, FALSE
);
220 erase_lots(term
, FALSE
, TRUE
, TRUE
);
221 swap_screen(term
, 0, FALSE
, FALSE
);
222 erase_lots(term
, FALSE
, TRUE
, TRUE
);
227 * Force a screen update.
229 void term_update(Terminal
*term
)
232 ctx
= get_ctx(term
->frontend
);
234 int need_sbar_update
= term
->seen_disp_event
;
235 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
236 term
->disptop
= 0; /* return to main screen */
237 term
->seen_disp_event
= 0;
238 need_sbar_update
= TRUE
;
240 if (need_sbar_update
)
242 do_paint(term
, ctx
, TRUE
);
243 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
249 * Called from front end when a keypress occurs, to trigger
250 * anything magical that needs to happen in that situation.
252 void term_seen_key_event(Terminal
*term
)
255 * On any keypress, clear the bell overload mechanism
256 * completely, on the grounds that large numbers of
257 * beeps coming from deliberate key action are likely
258 * to be intended (e.g. beeps from filename completion
259 * blocking repeatedly).
261 term
->beep_overloaded
= FALSE
;
262 while (term
->beephead
) {
263 struct beeptime
*tmp
= term
->beephead
;
264 term
->beephead
= tmp
->next
;
267 term
->beeptail
= NULL
;
271 * Reset the scrollback on keypress, if we're doing that.
273 if (term
->cfg
.scroll_on_key
) {
274 term
->disptop
= 0; /* return to main screen */
275 term
->seen_disp_event
= 1;
280 * Same as power_on(), but an external function.
282 void term_pwron(Terminal
*term
)
285 if (term
->ldisc
) /* cause ldisc to notice changes */
286 ldisc_send(term
->ldisc
, NULL
, 0, 0);
294 * When the user reconfigures us, we need to check the forbidden-
295 * alternate-screen config option, disable raw mouse mode if the
296 * user has disabled mouse reporting, and abandon a print job if
297 * the user has disabled printing.
299 void term_reconfig(Terminal
*term
, Config
*cfg
)
302 * Before adopting the new config, check all those terminal
303 * settings which control power-on defaults; and if they've
304 * changed, we will modify the current state as well as the
305 * default one. The full list is: Auto wrap mode, DEC Origin
306 * Mode, BCE, blinking text, character classes.
308 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
311 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
312 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
313 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
314 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
316 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
317 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
320 term
->cfg
= *cfg
; /* STRUCTURE COPY */
323 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
325 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
327 term
->use_bce
= term
->cfg
.bce
;
329 term
->erase_char
= (' ' | ATTR_ASCII
|
331 (ATTR_FGMASK
| ATTR_BGMASK
)));
333 term
->erase_char
= ERASE_CHAR
;
336 term
->blink_is_real
= term
->cfg
.blinktext
;
338 for (i
= 0; i
< 256; i
++)
339 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
341 if (term
->cfg
.no_alt_screen
)
342 swap_screen(term
, 0, FALSE
, FALSE
);
343 if (term
->cfg
.no_mouse_rep
) {
344 term
->xterm_mouse
= 0;
345 set_raw_mouse_mode(term
->frontend
, 0);
347 if (term
->cfg
.no_remote_charset
) {
348 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
349 term
->sco_acs
= term
->alt_sco_acs
= 0;
352 if (!*term
->cfg
.printer
) {
353 term_print_finish(term
);
358 * Clear the scrollback.
360 void term_clrsb(Terminal
*term
)
364 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
367 term
->tempsblines
= 0;
368 term
->alt_sblines
= 0;
373 * Initialise the terminal.
375 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
381 * Allocate a new Terminal structure and initialise the fields
384 term
= snew(Terminal
);
385 term
->frontend
= frontend
;
386 term
->ucsdata
= ucsdata
;
387 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
389 term
->compatibility_level
= TM_PUTTY
;
390 strcpy(term
->id_string
, "\033[?6c");
391 term
->last_blink
= term
->last_tblink
= 0;
392 term
->paste_buffer
= NULL
;
394 term
->last_paste
= 0;
395 bufchain_init(&term
->inbuf
);
396 bufchain_init(&term
->printer_buf
);
397 term
->printing
= term
->only_printing
= FALSE
;
398 term
->print_job
= NULL
;
399 term
->vt52_mode
= FALSE
;
400 term
->cr_lf_return
= FALSE
;
401 term
->seen_disp_event
= FALSE
;
402 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
403 term
->reset_132
= FALSE
;
404 term
->blinker
= term
->tblinker
= 0;
406 term
->repeat_off
= FALSE
;
407 term
->termstate
= TOPLEVEL
;
408 term
->selstate
= NO_SELECTION
;
411 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
412 term
->tempsblines
= 0;
413 term
->alt_sblines
= 0;
415 term
->disptext
= term
->dispcurs
= NULL
;
418 term
->rows
= term
->cols
= -1;
420 term
->beephead
= term
->beeptail
= NULL
;
421 #ifdef OPTIMISE_SCROLL
422 term
->scrollhead
= term
->scrolltail
= NULL
;
423 #endif /* OPTIMISE_SCROLL */
425 term
->lastbeep
= FALSE
;
426 term
->beep_overloaded
= FALSE
;
427 term
->attr_mask
= 0xffffffff;
428 term
->resize_fn
= NULL
;
429 term
->resize_ctx
= NULL
;
430 term
->in_term_out
= FALSE
;
435 void term_free(Terminal
*term
)
438 struct beeptime
*beep
;
440 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
442 freetree234(term
->scrollback
);
443 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
445 freetree234(term
->screen
);
446 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
448 freetree234(term
->alt_screen
);
449 sfree(term
->disptext
);
450 while (term
->beephead
) {
451 beep
= term
->beephead
;
452 term
->beephead
= beep
->next
;
455 bufchain_clear(&term
->inbuf
);
457 printer_finish_job(term
->print_job
);
458 bufchain_clear(&term
->printer_buf
);
459 sfree(term
->paste_buffer
);
464 * Set up the terminal for a given size.
466 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
469 unsigned long *newdisp
, *line
;
472 int save_alt_which
= term
->alt_which
;
474 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
475 newsavelines
== term
->savelines
)
476 return; /* nothing to do */
479 swap_screen(term
, 0, FALSE
, FALSE
);
481 term
->alt_t
= term
->marg_t
= 0;
482 term
->alt_b
= term
->marg_b
= newrows
- 1;
484 if (term
->rows
== -1) {
485 term
->scrollback
= newtree234(NULL
);
486 term
->screen
= newtree234(NULL
);
487 term
->tempsblines
= 0;
492 * Resize the screen and scrollback. We only need to shift
493 * lines around within our data structures, because lineptr()
494 * will take care of resizing each individual line if
497 * - If the new screen is longer, we shunt lines in from temporary
498 * scrollback if possible, otherwise we add new blank lines at
501 * - If the new screen is shorter, we remove any blank lines at
502 * the bottom if possible, otherwise shunt lines above the cursor
503 * to scrollback if possible, otherwise delete lines below the
506 * - Then, if the new scrollback length is less than the
507 * amount of scrollback we actually have, we must throw some
510 sblen
= count234(term
->scrollback
);
511 /* Do this loop to expand the screen if newrows > rows */
512 assert(term
->rows
== count234(term
->screen
));
513 while (term
->rows
< newrows
) {
514 if (term
->tempsblines
> 0) {
515 /* Insert a line from the scrollback at the top of the screen. */
516 assert(sblen
>= term
->tempsblines
);
517 line
= delpos234(term
->scrollback
, --sblen
);
518 term
->tempsblines
-= 1;
519 addpos234(term
->screen
, line
, 0);
521 term
->savecurs
.y
+= 1;
523 /* Add a new blank line at the bottom of the screen. */
524 line
= snewn(newcols
+ 2, TTYPE
);
526 for (j
= 0; j
< newcols
; j
++)
527 line
[j
+ 1] = ERASE_CHAR
;
528 line
[newcols
+ 1] = LATTR_NORM
;
529 addpos234(term
->screen
, line
, count234(term
->screen
));
533 /* Do this loop to shrink the screen if newrows < rows */
534 while (term
->rows
> newrows
) {
535 if (term
->curs
.y
< term
->rows
- 1) {
536 /* delete bottom row, unless it contains the cursor */
537 sfree(delpos234(term
->screen
, term
->rows
- 1));
539 /* push top row to scrollback */
540 line
= delpos234(term
->screen
, 0);
541 addpos234(term
->scrollback
, line
, sblen
++);
542 term
->tempsblines
+= 1;
544 term
->savecurs
.y
-= 1;
548 assert(term
->rows
== newrows
);
549 assert(count234(term
->screen
) == newrows
);
551 /* Delete any excess lines from the scrollback. */
552 while (sblen
> newsavelines
) {
553 line
= delpos234(term
->scrollback
, 0);
557 if (sblen
< term
->tempsblines
)
558 term
->tempsblines
= sblen
;
559 assert(count234(term
->scrollback
) <= newsavelines
);
560 assert(count234(term
->scrollback
) >= term
->tempsblines
);
563 /* Make a new displayed text buffer. */
564 newdisp
= snewn(newrows
* (newcols
+ 1), TTYPE
);
565 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
566 newdisp
[i
] = ATTR_INVALID
;
567 sfree(term
->disptext
);
568 term
->disptext
= newdisp
;
569 term
->dispcurs
= NULL
;
571 /* Make a new alternate screen. */
572 newalt
= newtree234(NULL
);
573 for (i
= 0; i
< newrows
; i
++) {
574 line
= snewn(newcols
+ 2, TTYPE
);
576 for (j
= 0; j
< newcols
; j
++)
577 line
[j
+ 1] = term
->erase_char
;
578 line
[newcols
+ 1] = LATTR_NORM
;
579 addpos234(newalt
, line
, i
);
581 if (term
->alt_screen
) {
582 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
584 freetree234(term
->alt_screen
);
586 term
->alt_screen
= newalt
;
587 term
->alt_sblines
= 0;
589 term
->tabs
= sresize(term
->tabs
, newcols
, unsigned char);
592 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
593 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
596 /* Check that the cursor positions are still valid. */
597 if (term
->savecurs
.y
< 0)
598 term
->savecurs
.y
= 0;
599 if (term
->savecurs
.y
>= newrows
)
600 term
->savecurs
.y
= newrows
- 1;
601 if (term
->curs
.y
< 0)
603 if (term
->curs
.y
>= newrows
)
604 term
->curs
.y
= newrows
- 1;
605 if (term
->curs
.x
>= newcols
)
606 term
->curs
.x
= newcols
- 1;
607 term
->alt_x
= term
->alt_y
= 0;
608 term
->wrapnext
= term
->alt_wnext
= FALSE
;
610 term
->rows
= newrows
;
611 term
->cols
= newcols
;
612 term
->savelines
= newsavelines
;
615 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
620 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
624 * Hand a function and context pointer to the terminal which it can
625 * use to notify a back end of resizes.
627 void term_provide_resize_fn(Terminal
*term
,
628 void (*resize_fn
)(void *, int, int),
631 term
->resize_fn
= resize_fn
;
632 term
->resize_ctx
= resize_ctx
;
633 if (term
->cols
> 0 && term
->rows
> 0)
634 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
637 /* Find the bottom line on the screen that has any content.
638 * If only the top line has content, returns 0.
639 * If no lines have content, return -1.
641 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
644 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
645 unsigned long *line
= index234(screen
, i
);
648 for (j
= 0; j
< cols
; j
++) {
649 if (line
[j
+ 1] != term
->erase_char
) break;
651 if (j
!= cols
) break;
657 * Swap screens. If `reset' is TRUE and we have been asked to
658 * switch to the alternate screen, we must bring most of its
659 * configuration from the main screen and erase the contents of the
660 * alternate screen completely. (This is even true if we're already
661 * on it! Blame xterm.)
663 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
669 reset
= FALSE
; /* do no weird resetting if which==0 */
671 if (which
!= term
->alt_which
) {
672 term
->alt_which
= which
;
674 ttr
= term
->alt_screen
;
675 term
->alt_screen
= term
->screen
;
677 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
679 if (!reset
&& !keep_cur_pos
)
680 term
->curs
.x
= term
->alt_x
;
683 if (!reset
&& !keep_cur_pos
)
684 term
->curs
.y
= term
->alt_y
;
687 if (!reset
) term
->marg_t
= term
->alt_t
;
690 if (!reset
) term
->marg_b
= term
->alt_b
;
693 if (!reset
) term
->dec_om
= term
->alt_om
;
696 if (!reset
) term
->wrap
= term
->alt_wrap
;
699 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
702 if (!reset
) term
->insert
= term
->alt_ins
;
705 if (!reset
) term
->cset
= term
->alt_cset
;
708 if (!reset
) term
->utf
= term
->alt_utf
;
711 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
712 term
->alt_sco_acs
= t
;
715 if (reset
&& term
->screen
) {
717 * Yes, this _is_ supposed to honour background-colour-erase.
719 erase_lots(term
, FALSE
, TRUE
, TRUE
);
723 * This might not be possible if we're called during
731 * Update the scroll bar.
733 static void update_sbar(Terminal
*term
)
735 int nscroll
= sblines(term
);
736 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
737 nscroll
+ term
->disptop
, term
->rows
);
741 * Check whether the region bounded by the two pointers intersects
742 * the scroll region, and de-select the on-screen selection if so.
744 static void check_selection(Terminal
*term
, pos from
, pos to
)
746 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
751 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
752 * for backward.) `sb' is TRUE if the scrolling is permitted to
753 * affect the scrollback buffer.
755 * NB this function invalidates all pointers into lines of the
756 * screen data structures. In particular, you MUST call fix_cpos
757 * after calling scroll() and before doing anything else that
758 * uses the cpos shortcut pointer.
760 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
762 unsigned long *line
, *line2
;
763 int i
, seltop
, olddisptop
, shift
;
765 if (topline
!= 0 || term
->alt_which
!= 0)
768 olddisptop
= term
->disptop
;
772 line
= delpos234(term
->screen
, botline
);
773 line
= resizeline(line
, term
->cols
);
774 for (i
= 0; i
< term
->cols
; i
++)
775 line
[i
+ 1] = term
->erase_char
;
776 line
[term
->cols
+ 1] = 0;
777 addpos234(term
->screen
, line
, topline
);
779 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
781 if (term
->selstart
.y
> botline
) {
782 term
->selstart
.y
= botline
+ 1;
783 term
->selstart
.x
= 0;
786 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
788 if (term
->selend
.y
> botline
) {
789 term
->selend
.y
= botline
+ 1;
798 line
= delpos234(term
->screen
, topline
);
799 if (sb
&& term
->savelines
> 0) {
800 int sblen
= count234(term
->scrollback
);
802 * We must add this line to the scrollback. We'll
803 * remove a line from the top of the scrollback to
804 * replace it, or allocate a new one if the
805 * scrollback isn't full.
807 if (sblen
== term
->savelines
) {
808 sblen
--, line2
= delpos234(term
->scrollback
, 0);
810 line2
= snewn(term
->cols
+ 2, TTYPE
);
811 line2
[0] = term
->cols
;
812 term
->tempsblines
+= 1;
814 addpos234(term
->scrollback
, line
, sblen
);
818 * If the user is currently looking at part of the
819 * scrollback, and they haven't enabled any options
820 * that are going to reset the scrollback as a
821 * result of this movement, then the chances are
822 * they'd like to keep looking at the same line. So
823 * we move their viewpoint at the same rate as the
824 * scroll, at least until their viewpoint hits the
825 * top end of the scrollback buffer, at which point
826 * we don't have the choice any more.
828 * Thanks to Jan Holmen Holsten for the idea and
829 * initial implementation.
831 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
834 line
= resizeline(line
, term
->cols
);
835 for (i
= 0; i
< term
->cols
; i
++)
836 line
[i
+ 1] = term
->erase_char
;
837 line
[term
->cols
+ 1] = LATTR_NORM
;
838 addpos234(term
->screen
, line
, botline
);
841 * If the selection endpoints move into the scrollback,
842 * we keep them moving until they hit the top. However,
843 * of course, if the line _hasn't_ moved into the
844 * scrollback then we don't do this, and cut them off
845 * at the top of the scroll region.
847 * This applies to selstart and selend (for an existing
848 * selection), and also selanchor (for one being
849 * selected as we speak).
851 seltop
= sb ?
-term
->savelines
: topline
;
853 if (term
->selstart
.y
>= seltop
&&
854 term
->selstart
.y
<= botline
) {
856 if (term
->selstart
.y
< seltop
) {
857 term
->selstart
.y
= seltop
;
858 term
->selstart
.x
= 0;
861 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
863 if (term
->selend
.y
< seltop
) {
864 term
->selend
.y
= seltop
;
868 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
870 if (term
->selanchor
.y
< seltop
) {
871 term
->selanchor
.y
= seltop
;
872 term
->selanchor
.x
= 0;
879 #ifdef OPTIMISE_SCROLL
880 shift
+= term
->disptop
- olddisptop
;
881 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
882 scroll_display(term
, topline
, botline
, shift
);
883 #endif /* OPTIMISE_SCROLL */
886 #ifdef OPTIMISE_SCROLL
888 * Add a scroll of a region on the screen into the pending scroll list.
889 * `lines' is +ve for scrolling forward, -ve for backward.
891 * If the scroll is on the same area as the last scroll in the list,
894 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
896 struct scrollregion
*newscroll
;
897 if (term
->scrolltail
&&
898 term
->scrolltail
->topline
== topline
&&
899 term
->scrolltail
->botline
== botline
) {
900 term
->scrolltail
->lines
+= lines
;
902 newscroll
= snew(struct scrollregion
);
903 newscroll
->topline
= topline
;
904 newscroll
->botline
= botline
;
905 newscroll
->lines
= lines
;
906 newscroll
->next
= NULL
;
908 if (!term
->scrollhead
)
909 term
->scrollhead
= newscroll
;
911 term
->scrolltail
->next
= newscroll
;
912 term
->scrolltail
= newscroll
;
917 * Scroll the physical display, and our conception of it in disptext.
919 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
921 unsigned long *start
, *end
;
922 int distance
, size
, i
;
924 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
925 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
926 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
927 size
= end
- start
- distance
;
929 memmove(start
, start
+ distance
, size
* TSIZE
);
930 if (term
->dispcurs
>= start
+ distance
&&
931 term
->dispcurs
<= start
+ distance
+ size
)
932 term
->dispcurs
-= distance
;
933 for (i
= 0; i
< distance
; i
++)
934 (start
+ size
)[i
] |= ATTR_INVALID
;
936 memmove(start
+ distance
, start
, size
* TSIZE
);
937 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
938 term
->dispcurs
+= distance
;
939 for (i
= 0; i
< distance
; i
++)
940 start
[i
] |= ATTR_INVALID
;
942 save_scroll(term
, topline
, botline
, lines
);
944 #endif /* OPTIMISE_SCROLL */
947 * Move the cursor to a given position, clipping at boundaries. We
948 * may or may not want to clip at the scroll margin: marg_clip is 0
949 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
950 * even _being_ outside the margins.
952 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
959 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
962 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
973 term
->wrapnext
= FALSE
;
977 * Save or restore the cursor and SGR mode.
979 static void save_cursor(Terminal
*term
, int save
)
982 term
->savecurs
= term
->curs
;
983 term
->save_attr
= term
->curr_attr
;
984 term
->save_cset
= term
->cset
;
985 term
->save_utf
= term
->utf
;
986 term
->save_wnext
= term
->wrapnext
;
987 term
->save_csattr
= term
->cset_attr
[term
->cset
];
988 term
->save_sco_acs
= term
->sco_acs
;
990 term
->curs
= term
->savecurs
;
991 /* Make sure the window hasn't shrunk since the save */
992 if (term
->curs
.x
>= term
->cols
)
993 term
->curs
.x
= term
->cols
- 1;
994 if (term
->curs
.y
>= term
->rows
)
995 term
->curs
.y
= term
->rows
- 1;
997 term
->curr_attr
= term
->save_attr
;
998 term
->cset
= term
->save_cset
;
999 term
->utf
= term
->save_utf
;
1000 term
->wrapnext
= term
->save_wnext
;
1002 * wrapnext might reset to False if the x position is no
1003 * longer at the rightmost edge.
1005 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1006 term
->wrapnext
= FALSE
;
1007 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1008 term
->sco_acs
= term
->save_sco_acs
;
1011 term
->erase_char
= (' ' | ATTR_ASCII
|
1013 (ATTR_FGMASK
| ATTR_BGMASK
)));
1018 * This function is called before doing _anything_ which affects
1019 * only part of a line of text. It is used to mark the boundary
1020 * between two character positions, and it indicates that some sort
1021 * of effect is going to happen on only one side of that boundary.
1023 * The effect of this function is to check whether a CJK
1024 * double-width character is straddling the boundary, and to remove
1025 * it and replace it with two spaces if so. (Of course, one or
1026 * other of those spaces is then likely to be replaced with
1027 * something else again, as a result of whatever happens next.)
1029 * Also, if the boundary is at the right-hand _edge_ of the screen,
1030 * it implies something deliberate is being done to the rightmost
1031 * column position; hence we must clear LATTR_WRAPPED2.
1033 * The input to the function is the coordinates of the _second_
1034 * character of the pair.
1036 static void check_boundary(Terminal
*term
, int x
, int y
)
1038 unsigned long *ldata
;
1040 /* Validate input coordinates, just in case. */
1041 if (x
== 0 || x
> term
->cols
)
1045 if (x
== term
->cols
) {
1046 ldata
[x
] &= ~LATTR_WRAPPED2
;
1048 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
1049 ldata
[x
-1] = ldata
[x
] =
1050 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
1056 * Erase a large portion of the screen: the whole screen, or the
1057 * whole line, or parts thereof.
1059 static void erase_lots(Terminal
*term
,
1060 int line_only
, int from_begin
, int to_end
)
1064 int erasing_lines_from_top
= 0;
1067 start
.y
= term
->curs
.y
;
1069 end
.y
= term
->curs
.y
+ 1;
1071 erase_lattr
= FALSE
;
1086 if (!from_begin
|| !to_end
)
1087 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1088 check_selection(term
, start
, end
);
1090 /* Clear screen also forces a full window redraw, just in case. */
1091 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1092 term_invalidate(term
);
1094 /* Lines scrolled away shouldn't be brought back on if the terminal
1096 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1097 erasing_lines_from_top
= 1;
1099 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1100 /* If it's a whole number of lines, starting at the top, and
1101 * we're fully erasing them, erase by scrolling and keep the
1102 * lines in the scrollback. */
1103 int scrolllines
= end
.y
;
1104 if (end
.y
== term
->rows
) {
1105 /* Shrink until we find a non-empty row.*/
1106 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1108 if (scrolllines
> 0)
1109 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1112 unsigned long *ldata
= lineptr(start
.y
);
1113 while (poslt(start
, end
)) {
1114 if (start
.x
== term
->cols
) {
1116 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1118 ldata
[start
.x
] = LATTR_NORM
;
1120 ldata
[start
.x
] = term
->erase_char
;
1122 if (incpos(start
) && start
.y
< term
->rows
)
1123 ldata
= lineptr(start
.y
);
1127 /* After an erase of lines from the top of the screen, we shouldn't
1128 * bring the lines back again if the terminal enlarges (since the user or
1129 * application has explictly thrown them away). */
1130 if (erasing_lines_from_top
&& !(term
->alt_which
))
1131 term
->tempsblines
= 0;
1135 * Insert or delete characters within the current line. n is +ve if
1136 * insertion is desired, and -ve for deletion.
1138 static void insch(Terminal
*term
, int n
)
1140 int dir
= (n
< 0 ?
-1 : +1);
1143 unsigned long *ldata
;
1145 n
= (n
< 0 ?
-n
: n
);
1146 if (n
> term
->cols
- term
->curs
.x
)
1147 n
= term
->cols
- term
->curs
.x
;
1148 m
= term
->cols
- term
->curs
.x
- n
;
1149 cursplus
.y
= term
->curs
.y
;
1150 cursplus
.x
= term
->curs
.x
+ n
;
1151 check_selection(term
, term
->curs
, cursplus
);
1152 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1154 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1155 ldata
= lineptr(term
->curs
.y
);
1157 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1159 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1161 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1163 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1168 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1169 * whether the mode is a DEC private one or a normal one.)
1171 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1173 unsigned long ticks
;
1177 case 1: /* DECCKM: application cursor keys */
1178 term
->app_cursor_keys
= state
;
1180 case 2: /* DECANM: VT52 mode */
1181 term
->vt52_mode
= !state
;
1182 if (term
->vt52_mode
) {
1183 term
->blink_is_real
= FALSE
;
1184 term
->vt52_bold
= FALSE
;
1186 term
->blink_is_real
= term
->cfg
.blinktext
;
1189 case 3: /* DECCOLM: 80/132 columns */
1191 if (!term
->cfg
.no_remote_resize
)
1192 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1193 term
->reset_132
= state
;
1194 term
->alt_t
= term
->marg_t
= 0;
1195 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1196 move(term
, 0, 0, 0);
1197 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1199 case 5: /* DECSCNM: reverse video */
1201 * Toggle reverse video. If we receive an OFF within the
1202 * visual bell timeout period after an ON, we trigger an
1203 * effective visual bell, so that ESC[?5hESC[?5l will
1204 * always be an actually _visible_ visual bell.
1206 ticks
= GETTICKCOUNT();
1207 /* turn off a previous vbell to avoid inconsistencies */
1208 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1209 term
->in_vbell
= FALSE
;
1210 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1211 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1212 /* If there's no vbell timeout already, or this one lasts
1213 * longer, replace vbell_timeout with ours. */
1214 if (!term
->in_vbell
||
1215 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1217 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1218 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1219 } else if (!term
->rvideo
&& state
) {
1220 /* This is an ON, so we notice the time and save it. */
1221 term
->rvbell_startpoint
= ticks
;
1223 term
->rvideo
= state
;
1224 term
->seen_disp_event
= TRUE
;
1228 case 6: /* DECOM: DEC origin mode */
1229 term
->dec_om
= state
;
1231 case 7: /* DECAWM: auto wrap */
1234 case 8: /* DECARM: auto key repeat */
1235 term
->repeat_off
= !state
;
1237 case 10: /* DECEDM: set local edit mode */
1238 term
->term_editing
= state
;
1239 if (term
->ldisc
) /* cause ldisc to notice changes */
1240 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1242 case 25: /* DECTCEM: enable/disable cursor */
1243 compatibility2(OTHER
, VT220
);
1244 term
->cursor_on
= state
;
1245 term
->seen_disp_event
= TRUE
;
1247 case 47: /* alternate screen */
1248 compatibility(OTHER
);
1250 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1253 case 1000: /* xterm mouse 1 */
1254 term
->xterm_mouse
= state ?
1 : 0;
1255 set_raw_mouse_mode(term
->frontend
, state
);
1257 case 1002: /* xterm mouse 2 */
1258 term
->xterm_mouse
= state ?
2 : 0;
1259 set_raw_mouse_mode(term
->frontend
, state
);
1261 case 1047: /* alternate screen */
1262 compatibility(OTHER
);
1264 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1267 case 1048: /* save/restore cursor */
1268 if (!term
->cfg
.no_alt_screen
)
1269 save_cursor(term
, state
);
1270 if (!state
) term
->seen_disp_event
= TRUE
;
1272 case 1049: /* cursor & alternate screen */
1273 if (state
&& !term
->cfg
.no_alt_screen
)
1274 save_cursor(term
, state
);
1275 if (!state
) term
->seen_disp_event
= TRUE
;
1276 compatibility(OTHER
);
1278 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1279 if (!state
&& !term
->cfg
.no_alt_screen
)
1280 save_cursor(term
, state
);
1285 case 4: /* IRM: set insert mode */
1286 compatibility(VT102
);
1287 term
->insert
= state
;
1289 case 12: /* SRM: set echo mode */
1290 term
->term_echoing
= !state
;
1291 if (term
->ldisc
) /* cause ldisc to notice changes */
1292 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1294 case 20: /* LNM: Return sends ... */
1295 term
->cr_lf_return
= state
;
1297 case 34: /* WYULCURM: Make cursor BIG */
1298 compatibility2(OTHER
, VT220
);
1299 term
->big_cursor
= !state
;
1304 * Process an OSC sequence: set window title or icon name.
1306 static void do_osc(Terminal
*term
)
1309 while (term
->osc_strlen
--)
1310 term
->wordness
[(unsigned char)
1311 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1313 term
->osc_string
[term
->osc_strlen
] = '\0';
1314 switch (term
->esc_args
[0]) {
1317 if (!term
->cfg
.no_remote_wintitle
)
1318 set_icon(term
->frontend
, term
->osc_string
);
1319 if (term
->esc_args
[0] == 1)
1321 /* fall through: parameter 0 means set both */
1324 if (!term
->cfg
.no_remote_wintitle
)
1325 set_title(term
->frontend
, term
->osc_string
);
1332 * ANSI printing routines.
1334 static void term_print_setup(Terminal
*term
)
1336 bufchain_clear(&term
->printer_buf
);
1337 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1339 static void term_print_flush(Terminal
*term
)
1344 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1345 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1348 printer_job_data(term
->print_job
, data
, len
);
1349 bufchain_consume(&term
->printer_buf
, len
);
1352 static void term_print_finish(Terminal
*term
)
1358 if (!term
->printing
&& !term
->only_printing
)
1359 return; /* we need do nothing */
1361 term_print_flush(term
);
1362 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1363 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1365 if (c
== '\033' || c
== '\233') {
1366 bufchain_consume(&term
->printer_buf
, size
);
1369 printer_job_data(term
->print_job
, &c
, 1);
1370 bufchain_consume(&term
->printer_buf
, 1);
1373 printer_finish_job(term
->print_job
);
1374 term
->print_job
= NULL
;
1375 term
->printing
= term
->only_printing
= FALSE
;
1379 * Remove everything currently in `inbuf' and stick it up on the
1380 * in-memory display. There's a big state machine in here to
1381 * process escape sequences...
1383 void term_out(Terminal
*term
)
1386 unsigned char localbuf
[256], *chars
;
1391 chars
= NULL
; /* placate compiler warnings */
1392 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1396 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1397 if (nchars
> sizeof(localbuf
))
1398 nchars
= sizeof(localbuf
);
1399 memcpy(localbuf
, ret
, nchars
);
1400 bufchain_consume(&term
->inbuf
, nchars
);
1402 assert(chars
!= NULL
);
1408 * Optionally log the session traffic to a file. Useful for
1409 * debugging and possibly also useful for actual logging.
1411 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1412 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1418 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1419 * be able to display 8-bit characters, but I'll let that go 'cause
1424 * If we're printing, add the character to the printer
1427 if (term
->printing
) {
1428 bufchain_add(&term
->printer_buf
, &c
, 1);
1431 * If we're in print-only mode, we use a much simpler
1432 * state machine designed only to recognise the ESC[4i
1433 * termination sequence.
1435 if (term
->only_printing
) {
1437 term
->print_state
= 1;
1438 else if (c
== (unsigned char)'\233')
1439 term
->print_state
= 2;
1440 else if (c
== '[' && term
->print_state
== 1)
1441 term
->print_state
= 2;
1442 else if (c
== '4' && term
->print_state
== 2)
1443 term
->print_state
= 3;
1444 else if (c
== 'i' && term
->print_state
== 3)
1445 term
->print_state
= 4;
1447 term
->print_state
= 0;
1448 if (term
->print_state
== 4) {
1449 term_print_finish(term
);
1455 /* First see about all those translations. */
1456 if (term
->termstate
== TOPLEVEL
) {
1458 switch (term
->utf_state
) {
1461 /* UTF-8 must be stateless so we ignore iso2022. */
1462 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1463 c
= term
->ucsdata
->unitab_ctrl
[c
];
1464 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1466 } else if ((c
& 0xe0) == 0xc0) {
1467 term
->utf_size
= term
->utf_state
= 1;
1468 term
->utf_char
= (c
& 0x1f);
1469 } else if ((c
& 0xf0) == 0xe0) {
1470 term
->utf_size
= term
->utf_state
= 2;
1471 term
->utf_char
= (c
& 0x0f);
1472 } else if ((c
& 0xf8) == 0xf0) {
1473 term
->utf_size
= term
->utf_state
= 3;
1474 term
->utf_char
= (c
& 0x07);
1475 } else if ((c
& 0xfc) == 0xf8) {
1476 term
->utf_size
= term
->utf_state
= 4;
1477 term
->utf_char
= (c
& 0x03);
1478 } else if ((c
& 0xfe) == 0xfc) {
1479 term
->utf_size
= term
->utf_state
= 5;
1480 term
->utf_char
= (c
& 0x01);
1491 if ((c
& 0xC0) != 0x80) {
1494 term
->utf_state
= 0;
1497 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1498 if (--term
->utf_state
)
1503 /* Is somebody trying to be evil! */
1505 (c
< 0x800 && term
->utf_size
>= 2) ||
1506 (c
< 0x10000 && term
->utf_size
>= 3) ||
1507 (c
< 0x200000 && term
->utf_size
>= 4) ||
1508 (c
< 0x4000000 && term
->utf_size
>= 5))
1511 /* Unicode line separator and paragraph separator are CR-LF */
1512 if (c
== 0x2028 || c
== 0x2029)
1515 /* High controls are probably a Baaad idea too. */
1519 /* The UTF-16 surrogates are not nice either. */
1520 /* The standard give the option of decoding these:
1521 * I don't want to! */
1522 if (c
>= 0xD800 && c
< 0xE000)
1525 /* ISO 10646 characters now limited to UTF-16 range. */
1529 /* This is currently a TagPhobic application.. */
1530 if (c
>= 0xE0000 && c
<= 0xE007F)
1533 /* U+FEFF is best seen as a null. */
1536 /* But U+FFFE is an error. */
1537 if (c
== 0xFFFE || c
== 0xFFFF)
1540 /* Oops this is a 16bit implementation */
1545 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1546 else if(term
->sco_acs
&&
1547 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1549 if (term
->sco_acs
== 2) c
|= 0x80;
1552 switch (term
->cset_attr
[term
->cset
]) {
1554 * Linedraw characters are different from 'ESC ( B'
1555 * only for a small range. For ones outside that
1556 * range, make sure we use the same font as well as
1557 * the same encoding.
1560 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1561 c
= term
->ucsdata
->unitab_ctrl
[c
];
1563 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1567 /* If UK-ASCII, make the '#' a LineDraw Pound */
1569 c
= '}' | ATTR_LINEDRW
;
1572 /*FALLTHROUGH*/ case ATTR_ASCII
:
1573 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1574 c
= term
->ucsdata
->unitab_ctrl
[c
];
1576 c
= ((unsigned char) c
) | ATTR_ASCII
;
1579 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1585 /* How about C1 controls ? */
1586 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1587 !term
->vt52_mode
&& has_compat(VT220
)) {
1588 term
->termstate
= SEEN_ESC
;
1589 term
->esc_query
= FALSE
;
1590 c
= '@' + (c
& 0x1F);
1593 /* Or the GL control. */
1594 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1595 if (term
->curs
.x
&& !term
->wrapnext
)
1597 term
->wrapnext
= FALSE
;
1599 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1600 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1602 /* Or normal C0 controls. */
1603 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1605 case '\005': /* ENQ: terminal type query */
1606 /* Strictly speaking this is VT100 but a VT100 defaults to
1607 * no response. Other terminals respond at their option.
1609 * Don't put a CR in the default string as this tends to
1610 * upset some weird software.
1612 * An xterm returns "xterm" (5 characters)
1614 compatibility(ANSIMIN
);
1616 char abuf
[256], *s
, *d
;
1618 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1620 if (*s
>= 'a' && *s
<= 'z')
1621 *d
++ = (*s
- ('a' - 1));
1622 else if ((*s
>= '@' && *s
<= '_') ||
1623 *s
== '?' || (*s
& 0x80))
1628 } else if (*s
== '^') {
1633 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1637 case '\007': /* BEL: Bell */
1639 struct beeptime
*newbeep
;
1640 unsigned long ticks
;
1642 ticks
= GETTICKCOUNT();
1644 if (!term
->beep_overloaded
) {
1645 newbeep
= snew(struct beeptime
);
1646 newbeep
->ticks
= ticks
;
1647 newbeep
->next
= NULL
;
1648 if (!term
->beephead
)
1649 term
->beephead
= newbeep
;
1651 term
->beeptail
->next
= newbeep
;
1652 term
->beeptail
= newbeep
;
1657 * Throw out any beeps that happened more than
1660 while (term
->beephead
&&
1661 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1662 struct beeptime
*tmp
= term
->beephead
;
1663 term
->beephead
= tmp
->next
;
1665 if (!term
->beephead
)
1666 term
->beeptail
= NULL
;
1670 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1671 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1673 * If we're currently overloaded and the
1674 * last beep was more than s seconds ago,
1675 * leave overload mode.
1677 term
->beep_overloaded
= FALSE
;
1678 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1679 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1681 * Now, if we have n or more beeps
1682 * remaining in the queue, go into overload
1685 term
->beep_overloaded
= TRUE
;
1687 term
->lastbeep
= ticks
;
1690 * Perform an actual beep if we're not overloaded.
1692 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1693 beep(term
->frontend
, term
->cfg
.beep
);
1694 if (term
->cfg
.beep
== BELL_VISUAL
) {
1695 term
->in_vbell
= TRUE
;
1696 term
->vbell_startpoint
= ticks
;
1700 term
->seen_disp_event
= TRUE
;
1703 case '\b': /* BS: Back space */
1704 if (term
->curs
.x
== 0 &&
1705 (term
->curs
.y
== 0 || term
->wrap
== 0))
1707 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1708 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1709 else if (term
->wrapnext
)
1710 term
->wrapnext
= FALSE
;
1714 term
->seen_disp_event
= TRUE
;
1716 case '\016': /* LS1: Locking-shift one */
1717 compatibility(VT100
);
1720 case '\017': /* LS0: Locking-shift zero */
1721 compatibility(VT100
);
1724 case '\033': /* ESC: Escape */
1725 if (term
->vt52_mode
)
1726 term
->termstate
= VT52_ESC
;
1728 compatibility(ANSIMIN
);
1729 term
->termstate
= SEEN_ESC
;
1730 term
->esc_query
= FALSE
;
1733 case '\015': /* CR: Carriage return */
1735 term
->wrapnext
= FALSE
;
1737 term
->seen_disp_event
= TRUE
;
1738 term
->paste_hold
= 0;
1740 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1742 case '\014': /* FF: Form feed */
1743 if (has_compat(SCOANSI
)) {
1744 move(term
, 0, 0, 0);
1745 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1747 term
->wrapnext
= FALSE
;
1748 term
->seen_disp_event
= 1;
1751 case '\013': /* VT: Line tabulation */
1752 compatibility(VT100
);
1753 case '\012': /* LF: Line feed */
1754 if (term
->curs
.y
== term
->marg_b
)
1755 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1756 else if (term
->curs
.y
< term
->rows
- 1)
1758 if (term
->cfg
.lfhascr
)
1761 term
->wrapnext
= FALSE
;
1762 term
->seen_disp_event
= 1;
1763 term
->paste_hold
= 0;
1765 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1767 case '\t': /* HT: Character tabulation */
1769 pos old_curs
= term
->curs
;
1770 unsigned long *ldata
= lineptr(term
->curs
.y
);
1774 } while (term
->curs
.x
< term
->cols
- 1 &&
1775 !term
->tabs
[term
->curs
.x
]);
1777 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1778 if (term
->curs
.x
>= term
->cols
/ 2)
1779 term
->curs
.x
= term
->cols
/ 2 - 1;
1781 if (term
->curs
.x
>= term
->cols
)
1782 term
->curs
.x
= term
->cols
- 1;
1786 check_selection(term
, old_curs
, term
->curs
);
1788 term
->seen_disp_event
= TRUE
;
1792 switch (term
->termstate
) {
1794 /* Only graphic characters get this far;
1795 * ctrls are stripped above */
1796 if (term
->wrapnext
&& term
->wrap
) {
1797 term
->cpos
[1] |= LATTR_WRAPPED
;
1798 if (term
->curs
.y
== term
->marg_b
)
1799 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1800 else if (term
->curs
.y
< term
->rows
- 1)
1804 term
->wrapnext
= FALSE
;
1808 if (term
->selstate
!= NO_SELECTION
) {
1809 pos cursplus
= term
->curs
;
1811 check_selection(term
, term
->curs
, cursplus
);
1813 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1815 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1821 width
= wcwidth((wchar_t) c
);
1825 * If we're about to display a double-width
1826 * character starting in the rightmost
1827 * column, then we do something special
1828 * instead. We must print a space in the
1829 * last column of the screen, then wrap;
1830 * and we also set LATTR_WRAPPED2 which
1831 * instructs subsequent cut-and-pasting not
1832 * only to splice this line to the one
1833 * after it, but to ignore the space in the
1834 * last character position as well.
1835 * (Because what was actually output to the
1836 * terminal was presumably just a sequence
1837 * of CJK characters, and we don't want a
1838 * space to be pasted in the middle of
1839 * those just because they had the
1840 * misfortune to start in the wrong parity
1841 * column. xterm concurs.)
1843 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1844 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1845 if (term
->curs
.x
== term
->cols
-1) {
1846 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1847 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1848 if (term
->curs
.y
== term
->marg_b
)
1849 scroll(term
, term
->marg_t
, term
->marg_b
,
1851 else if (term
->curs
.y
< term
->rows
- 1)
1855 /* Now we must check_boundary again, of course. */
1856 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1857 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1859 *term
->cpos
++ = c
| term
->curr_attr
;
1860 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1864 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1865 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1866 *term
->cpos
++ = c
| term
->curr_attr
;
1873 if (term
->curs
.x
== term
->cols
) {
1876 term
->wrapnext
= TRUE
;
1877 if (term
->wrap
&& term
->vt52_mode
) {
1878 term
->cpos
[1] |= LATTR_WRAPPED
;
1879 if (term
->curs
.y
== term
->marg_b
)
1880 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1881 else if (term
->curs
.y
< term
->rows
- 1)
1885 term
->wrapnext
= FALSE
;
1888 term
->seen_disp_event
= 1;
1893 * This state is virtually identical to SEEN_ESC, with the
1894 * exception that we have an OSC sequence in the pipeline,
1895 * and _if_ we see a backslash, we process it.
1899 term
->termstate
= TOPLEVEL
;
1902 /* else fall through */
1904 if (c
>= ' ' && c
<= '/') {
1905 if (term
->esc_query
)
1906 term
->esc_query
= -1;
1908 term
->esc_query
= c
;
1911 term
->termstate
= TOPLEVEL
;
1912 switch (ANSI(c
, term
->esc_query
)) {
1913 case '[': /* enter CSI mode */
1914 term
->termstate
= SEEN_CSI
;
1915 term
->esc_nargs
= 1;
1916 term
->esc_args
[0] = ARG_DEFAULT
;
1917 term
->esc_query
= FALSE
;
1919 case ']': /* OSC: xterm escape sequences */
1920 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1921 compatibility(OTHER
);
1922 term
->termstate
= SEEN_OSC
;
1923 term
->esc_args
[0] = 0;
1925 case '7': /* DECSC: save cursor */
1926 compatibility(VT100
);
1927 save_cursor(term
, TRUE
);
1929 case '8': /* DECRC: restore cursor */
1930 compatibility(VT100
);
1931 save_cursor(term
, FALSE
);
1932 term
->seen_disp_event
= TRUE
;
1934 case '=': /* DECKPAM: Keypad application mode */
1935 compatibility(VT100
);
1936 term
->app_keypad_keys
= TRUE
;
1938 case '>': /* DECKPNM: Keypad numeric mode */
1939 compatibility(VT100
);
1940 term
->app_keypad_keys
= FALSE
;
1942 case 'D': /* IND: exactly equivalent to LF */
1943 compatibility(VT100
);
1944 if (term
->curs
.y
== term
->marg_b
)
1945 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1946 else if (term
->curs
.y
< term
->rows
- 1)
1949 term
->wrapnext
= FALSE
;
1950 term
->seen_disp_event
= TRUE
;
1952 case 'E': /* NEL: exactly equivalent to CR-LF */
1953 compatibility(VT100
);
1955 if (term
->curs
.y
== term
->marg_b
)
1956 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1957 else if (term
->curs
.y
< term
->rows
- 1)
1960 term
->wrapnext
= FALSE
;
1961 term
->seen_disp_event
= TRUE
;
1963 case 'M': /* RI: reverse index - backwards LF */
1964 compatibility(VT100
);
1965 if (term
->curs
.y
== term
->marg_t
)
1966 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1967 else if (term
->curs
.y
> 0)
1970 term
->wrapnext
= FALSE
;
1971 term
->seen_disp_event
= TRUE
;
1973 case 'Z': /* DECID: terminal type query */
1974 compatibility(VT100
);
1976 ldisc_send(term
->ldisc
, term
->id_string
,
1977 strlen(term
->id_string
), 0);
1979 case 'c': /* RIS: restore power-on settings */
1980 compatibility(VT100
);
1982 if (term
->ldisc
) /* cause ldisc to notice changes */
1983 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1984 if (term
->reset_132
) {
1985 if (!term
->cfg
.no_remote_resize
)
1986 request_resize(term
->frontend
, 80, term
->rows
);
1987 term
->reset_132
= 0;
1991 term
->seen_disp_event
= TRUE
;
1993 case 'H': /* HTS: set a tab */
1994 compatibility(VT100
);
1995 term
->tabs
[term
->curs
.x
] = TRUE
;
1998 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
1999 compatibility(VT100
);
2001 unsigned long *ldata
;
2005 for (i
= 0; i
< term
->rows
; i
++) {
2007 for (j
= 0; j
< term
->cols
; j
++)
2008 ldata
[j
] = ATTR_DEFAULT
| 'E';
2009 ldata
[term
->cols
] = 0;
2012 term
->seen_disp_event
= TRUE
;
2013 scrtop
.x
= scrtop
.y
= 0;
2015 scrbot
.y
= term
->rows
;
2016 check_selection(term
, scrtop
, scrbot
);
2020 case ANSI('3', '#'):
2021 case ANSI('4', '#'):
2022 case ANSI('5', '#'):
2023 case ANSI('6', '#'):
2024 compatibility(VT100
);
2026 unsigned long nlattr
;
2027 unsigned long *ldata
;
2028 switch (ANSI(c
, term
->esc_query
)) {
2029 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2032 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2035 case ANSI('5', '#'): /* DECSWL: normal */
2036 nlattr
= LATTR_NORM
;
2038 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2039 nlattr
= LATTR_WIDE
;
2042 ldata
= lineptr(term
->curs
.y
);
2043 ldata
[term
->cols
] &= ~LATTR_MODE
;
2044 ldata
[term
->cols
] |= nlattr
;
2047 /* GZD4: G0 designate 94-set */
2048 case ANSI('A', '('):
2049 compatibility(VT100
);
2050 if (!term
->cfg
.no_remote_charset
)
2051 term
->cset_attr
[0] = ATTR_GBCHR
;
2053 case ANSI('B', '('):
2054 compatibility(VT100
);
2055 if (!term
->cfg
.no_remote_charset
)
2056 term
->cset_attr
[0] = ATTR_ASCII
;
2058 case ANSI('0', '('):
2059 compatibility(VT100
);
2060 if (!term
->cfg
.no_remote_charset
)
2061 term
->cset_attr
[0] = ATTR_LINEDRW
;
2063 case ANSI('U', '('):
2064 compatibility(OTHER
);
2065 if (!term
->cfg
.no_remote_charset
)
2066 term
->cset_attr
[0] = ATTR_SCOACS
;
2068 /* G1D4: G1-designate 94-set */
2069 case ANSI('A', ')'):
2070 compatibility(VT100
);
2071 if (!term
->cfg
.no_remote_charset
)
2072 term
->cset_attr
[1] = ATTR_GBCHR
;
2074 case ANSI('B', ')'):
2075 compatibility(VT100
);
2076 if (!term
->cfg
.no_remote_charset
)
2077 term
->cset_attr
[1] = ATTR_ASCII
;
2079 case ANSI('0', ')'):
2080 compatibility(VT100
);
2081 if (!term
->cfg
.no_remote_charset
)
2082 term
->cset_attr
[1] = ATTR_LINEDRW
;
2084 case ANSI('U', ')'):
2085 compatibility(OTHER
);
2086 if (!term
->cfg
.no_remote_charset
)
2087 term
->cset_attr
[1] = ATTR_SCOACS
;
2089 /* DOCS: Designate other coding system */
2090 case ANSI('8', '%'): /* Old Linux code */
2091 case ANSI('G', '%'):
2092 compatibility(OTHER
);
2093 if (!term
->cfg
.no_remote_charset
)
2096 case ANSI('@', '%'):
2097 compatibility(OTHER
);
2098 if (!term
->cfg
.no_remote_charset
)
2104 term
->termstate
= TOPLEVEL
; /* default */
2106 if (term
->esc_nargs
<= ARGS_MAX
) {
2107 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
2108 term
->esc_args
[term
->esc_nargs
- 1] = 0;
2109 term
->esc_args
[term
->esc_nargs
- 1] =
2110 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
2112 term
->termstate
= SEEN_CSI
;
2113 } else if (c
== ';') {
2114 if (++term
->esc_nargs
<= ARGS_MAX
)
2115 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
2116 term
->termstate
= SEEN_CSI
;
2117 } else if (c
< '@') {
2118 if (term
->esc_query
)
2119 term
->esc_query
= -1;
2121 term
->esc_query
= TRUE
;
2123 term
->esc_query
= c
;
2124 term
->termstate
= SEEN_CSI
;
2126 switch (ANSI(c
, term
->esc_query
)) {
2127 case 'A': /* CUU: move up N lines */
2128 move(term
, term
->curs
.x
,
2129 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2130 term
->seen_disp_event
= TRUE
;
2132 case 'e': /* VPR: move down N lines */
2133 compatibility(ANSI
);
2135 case 'B': /* CUD: Cursor down */
2136 move(term
, term
->curs
.x
,
2137 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2138 term
->seen_disp_event
= TRUE
;
2140 case ANSI('c', '>'): /* DA: report xterm version */
2141 compatibility(OTHER
);
2142 /* this reports xterm version 136 so that VIM can
2143 use the drag messages from the mouse reporting */
2145 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
2147 case 'a': /* HPR: move right N cols */
2148 compatibility(ANSI
);
2150 case 'C': /* CUF: Cursor right */
2151 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
2153 term
->seen_disp_event
= TRUE
;
2155 case 'D': /* CUB: move left N cols */
2156 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2158 term
->seen_disp_event
= TRUE
;
2160 case 'E': /* CNL: move down N lines and CR */
2161 compatibility(ANSI
);
2163 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2164 term
->seen_disp_event
= TRUE
;
2166 case 'F': /* CPL: move up N lines and CR */
2167 compatibility(ANSI
);
2169 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2170 term
->seen_disp_event
= TRUE
;
2173 case '`': /* HPA: set horizontal posn */
2174 compatibility(ANSI
);
2175 move(term
, def(term
->esc_args
[0], 1) - 1,
2177 term
->seen_disp_event
= TRUE
;
2179 case 'd': /* VPA: set vertical posn */
2180 compatibility(ANSI
);
2181 move(term
, term
->curs
.x
,
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
;
2188 case 'f': /* HVP: set horz and vert posns at once */
2189 if (term
->esc_nargs
< 2)
2190 term
->esc_args
[1] = ARG_DEFAULT
;
2191 move(term
, def(term
->esc_args
[1], 1) - 1,
2192 ((term
->dec_om ? term
->marg_t
: 0) +
2193 def(term
->esc_args
[0], 1) - 1),
2194 (term
->dec_om ?
2 : 0));
2195 term
->seen_disp_event
= TRUE
;
2197 case 'J': /* ED: erase screen or parts of it */
2199 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2202 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2205 term
->seen_disp_event
= TRUE
;
2207 case 'K': /* EL: erase line or parts of it */
2209 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2212 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2214 term
->seen_disp_event
= TRUE
;
2216 case 'L': /* IL: insert lines */
2217 compatibility(VT102
);
2218 if (term
->curs
.y
<= term
->marg_b
)
2219 scroll(term
, term
->curs
.y
, term
->marg_b
,
2220 -def(term
->esc_args
[0], 1), FALSE
);
2222 term
->seen_disp_event
= TRUE
;
2224 case 'M': /* DL: delete lines */
2225 compatibility(VT102
);
2226 if (term
->curs
.y
<= term
->marg_b
)
2227 scroll(term
, term
->curs
.y
, term
->marg_b
,
2228 def(term
->esc_args
[0], 1),
2231 term
->seen_disp_event
= TRUE
;
2233 case '@': /* ICH: insert chars */
2234 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2235 compatibility(VT102
);
2236 insch(term
, def(term
->esc_args
[0], 1));
2237 term
->seen_disp_event
= TRUE
;
2239 case 'P': /* DCH: delete chars */
2240 compatibility(VT102
);
2241 insch(term
, -def(term
->esc_args
[0], 1));
2242 term
->seen_disp_event
= TRUE
;
2244 case 'c': /* DA: terminal type query */
2245 compatibility(VT100
);
2246 /* This is the response for a VT102 */
2248 ldisc_send(term
->ldisc
, term
->id_string
,
2249 strlen(term
->id_string
), 0);
2251 case 'n': /* DSR: cursor position query */
2253 if (term
->esc_args
[0] == 6) {
2255 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2257 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2258 } else if (term
->esc_args
[0] == 5) {
2259 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2263 case 'h': /* SM: toggle modes to high */
2265 compatibility(VT100
);
2268 for (i
= 0; i
< term
->esc_nargs
; i
++)
2269 toggle_mode(term
, term
->esc_args
[i
],
2270 term
->esc_query
, TRUE
);
2273 case 'i': /* MC: Media copy */
2275 compatibility(VT100
);
2277 if (term
->esc_nargs
!= 1) break;
2278 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2279 term
->printing
= TRUE
;
2280 term
->only_printing
= !term
->esc_query
;
2281 term
->print_state
= 0;
2282 term_print_setup(term
);
2283 } else if (term
->esc_args
[0] == 4 &&
2285 term_print_finish(term
);
2289 case 'l': /* RM: toggle modes to low */
2291 compatibility(VT100
);
2294 for (i
= 0; i
< term
->esc_nargs
; i
++)
2295 toggle_mode(term
, term
->esc_args
[i
],
2296 term
->esc_query
, FALSE
);
2299 case 'g': /* TBC: clear tabs */
2300 compatibility(VT100
);
2301 if (term
->esc_nargs
== 1) {
2302 if (term
->esc_args
[0] == 0) {
2303 term
->tabs
[term
->curs
.x
] = FALSE
;
2304 } else if (term
->esc_args
[0] == 3) {
2306 for (i
= 0; i
< term
->cols
; i
++)
2307 term
->tabs
[i
] = FALSE
;
2311 case 'r': /* DECSTBM: set scroll margins */
2312 compatibility(VT100
);
2313 if (term
->esc_nargs
<= 2) {
2315 top
= def(term
->esc_args
[0], 1) - 1;
2316 bot
= (term
->esc_nargs
<= 1
2317 || term
->esc_args
[1] == 0 ?
2319 def(term
->esc_args
[1], term
->rows
)) - 1;
2320 if (bot
>= term
->rows
)
2321 bot
= term
->rows
- 1;
2322 /* VTTEST Bug 9 - if region is less than 2 lines
2323 * don't change region.
2325 if (bot
- top
> 0) {
2330 * I used to think the cursor should be
2331 * placed at the top of the newly marginned
2332 * area. Apparently not: VMS TPU falls over
2335 * Well actually it should for
2338 term
->curs
.y
= (term
->dec_om ?
2341 term
->seen_disp_event
= TRUE
;
2345 case 'm': /* SGR: set graphics rendition */
2348 * A VT100 without the AVO only had one
2349 * attribute, either underline or
2350 * reverse video depending on the
2351 * cursor type, this was selected by
2355 * This is sometimes DIM, eg on the
2358 * This is sometimes INVIS various ANSI.
2360 * This like 22 disables BOLD, DIM and INVIS
2362 * The ANSI colours appear on any
2363 * terminal that has colour (obviously)
2364 * but the interaction between sgr0 and
2365 * the colours varies but is usually
2366 * related to the background colour
2367 * erase item. The interaction between
2368 * colour attributes and the mono ones
2369 * is also very implementation
2372 * The 39 and 49 attributes are likely
2373 * to be unimplemented.
2376 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2377 switch (def(term
->esc_args
[i
], 0)) {
2378 case 0: /* restore defaults */
2379 term
->curr_attr
= term
->default_attr
;
2381 case 1: /* enable bold */
2382 compatibility(VT100AVO
);
2383 term
->curr_attr
|= ATTR_BOLD
;
2385 case 21: /* (enable double underline) */
2386 compatibility(OTHER
);
2387 case 4: /* enable underline */
2388 compatibility(VT100AVO
);
2389 term
->curr_attr
|= ATTR_UNDER
;
2391 case 5: /* enable blink */
2392 compatibility(VT100AVO
);
2393 term
->curr_attr
|= ATTR_BLINK
;
2395 case 6: /* SCO light bkgrd */
2396 compatibility(SCOANSI
);
2397 term
->blink_is_real
= FALSE
;
2398 term
->curr_attr
|= ATTR_BLINK
;
2400 case 7: /* enable reverse video */
2401 term
->curr_attr
|= ATTR_REVERSE
;
2403 case 10: /* SCO acs off */
2404 compatibility(SCOANSI
);
2405 if (term
->cfg
.no_remote_charset
) break;
2406 term
->sco_acs
= 0; break;
2407 case 11: /* SCO acs on */
2408 compatibility(SCOANSI
);
2409 if (term
->cfg
.no_remote_charset
) break;
2410 term
->sco_acs
= 1; break;
2411 case 12: /* SCO acs on, |0x80 */
2412 compatibility(SCOANSI
);
2413 if (term
->cfg
.no_remote_charset
) break;
2414 term
->sco_acs
= 2; break;
2415 case 22: /* disable bold */
2416 compatibility2(OTHER
, VT220
);
2417 term
->curr_attr
&= ~ATTR_BOLD
;
2419 case 24: /* disable underline */
2420 compatibility2(OTHER
, VT220
);
2421 term
->curr_attr
&= ~ATTR_UNDER
;
2423 case 25: /* disable blink */
2424 compatibility2(OTHER
, VT220
);
2425 term
->curr_attr
&= ~ATTR_BLINK
;
2427 case 27: /* disable reverse video */
2428 compatibility2(OTHER
, VT220
);
2429 term
->curr_attr
&= ~ATTR_REVERSE
;
2440 term
->curr_attr
&= ~ATTR_FGMASK
;
2442 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2452 /* xterm-style bright foreground */
2453 term
->curr_attr
&= ~ATTR_FGMASK
;
2455 ((term
->esc_args
[i
] - 90 + 16)
2458 case 39: /* default-foreground */
2459 term
->curr_attr
&= ~ATTR_FGMASK
;
2460 term
->curr_attr
|= ATTR_DEFFG
;
2471 term
->curr_attr
&= ~ATTR_BGMASK
;
2473 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2483 /* xterm-style bright background */
2484 term
->curr_attr
&= ~ATTR_BGMASK
;
2486 ((term
->esc_args
[i
] - 100 + 16)
2489 case 49: /* default-background */
2490 term
->curr_attr
&= ~ATTR_BGMASK
;
2491 term
->curr_attr
|= ATTR_DEFBG
;
2496 term
->erase_char
= (' ' | ATTR_ASCII
|
2502 case 's': /* save cursor */
2503 save_cursor(term
, TRUE
);
2505 case 'u': /* restore cursor */
2506 save_cursor(term
, FALSE
);
2507 term
->seen_disp_event
= TRUE
;
2509 case 't': /* DECSLPP: set page size - ie window height */
2511 * VT340/VT420 sequence DECSLPP, DEC only allows values
2512 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2513 * illegal values (eg first arg 1..9) for window changing
2516 if (term
->esc_nargs
<= 1
2517 && (term
->esc_args
[0] < 1 ||
2518 term
->esc_args
[0] >= 24)) {
2519 compatibility(VT340TEXT
);
2520 if (!term
->cfg
.no_remote_resize
)
2521 request_resize(term
->frontend
, term
->cols
,
2522 def(term
->esc_args
[0], 24));
2524 } else if (term
->esc_nargs
>= 1 &&
2525 term
->esc_args
[0] >= 1 &&
2526 term
->esc_args
[0] < 24) {
2527 compatibility(OTHER
);
2529 switch (term
->esc_args
[0]) {
2533 set_iconic(term
->frontend
, FALSE
);
2536 set_iconic(term
->frontend
, TRUE
);
2539 if (term
->esc_nargs
>= 3) {
2540 if (!term
->cfg
.no_remote_resize
)
2541 move_window(term
->frontend
,
2542 def(term
->esc_args
[1], 0),
2543 def(term
->esc_args
[2], 0));
2547 /* We should resize the window to a given
2548 * size in pixels here, but currently our
2549 * resizing code isn't healthy enough to
2554 set_zorder(term
->frontend
, TRUE
);
2557 /* move to bottom */
2558 set_zorder(term
->frontend
, FALSE
);
2561 refresh_window(term
->frontend
);
2564 if (term
->esc_nargs
>= 3) {
2565 if (!term
->cfg
.no_remote_resize
)
2566 request_resize(term
->frontend
,
2567 def(term
->esc_args
[2], term
->cfg
.width
),
2568 def(term
->esc_args
[1], term
->cfg
.height
));
2572 if (term
->esc_nargs
>= 2)
2573 set_zoomed(term
->frontend
,
2579 ldisc_send(term
->ldisc
,
2580 is_iconic(term
->frontend
) ?
2581 "\033[1t" : "\033[2t", 4, 0);
2585 get_window_pos(term
->frontend
, &x
, &y
);
2586 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2587 ldisc_send(term
->ldisc
, buf
, len
, 0);
2592 get_window_pixels(term
->frontend
, &x
, &y
);
2593 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2594 ldisc_send(term
->ldisc
, buf
, len
, 0);
2599 len
= sprintf(buf
, "\033[8;%d;%dt",
2600 term
->rows
, term
->cols
);
2601 ldisc_send(term
->ldisc
, buf
, len
, 0);
2606 * Hmmm. Strictly speaking we
2607 * should return `the size of the
2608 * screen in characters', but
2609 * that's not easy: (a) window
2610 * furniture being what it is it's
2611 * hard to compute, and (b) in
2612 * resize-font mode maximising the
2613 * window wouldn't change the
2614 * number of characters. *shrug*. I
2615 * think we'll ignore it for the
2616 * moment and see if anyone
2617 * complains, and then ask them
2618 * what they would like it to do.
2623 !term
->cfg
.no_remote_qtitle
) {
2624 p
= get_window_title(term
->frontend
, TRUE
);
2626 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2627 ldisc_send(term
->ldisc
, p
, len
, 0);
2628 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2633 !term
->cfg
.no_remote_qtitle
) {
2634 p
= get_window_title(term
->frontend
,FALSE
);
2636 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2637 ldisc_send(term
->ldisc
, p
, len
, 0);
2638 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2644 case 'S': /* SU: Scroll up */
2645 compatibility(SCOANSI
);
2646 scroll(term
, term
->marg_t
, term
->marg_b
,
2647 def(term
->esc_args
[0], 1), TRUE
);
2649 term
->wrapnext
= FALSE
;
2650 term
->seen_disp_event
= TRUE
;
2652 case 'T': /* SD: Scroll down */
2653 compatibility(SCOANSI
);
2654 scroll(term
, term
->marg_t
, term
->marg_b
,
2655 -def(term
->esc_args
[0], 1), TRUE
);
2657 term
->wrapnext
= FALSE
;
2658 term
->seen_disp_event
= TRUE
;
2660 case ANSI('|', '*'): /* DECSNLS */
2662 * Set number of lines on screen
2663 * VT420 uses VGA like hardware and can
2664 * support any size in reasonable range
2665 * (24..49 AIUI) with no default specified.
2667 compatibility(VT420
);
2668 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2669 if (!term
->cfg
.no_remote_resize
)
2670 request_resize(term
->frontend
, term
->cols
,
2671 def(term
->esc_args
[0],
2676 case ANSI('|', '$'): /* DECSCPP */
2678 * Set number of columns per page
2679 * Docs imply range is only 80 or 132, but
2682 compatibility(VT340TEXT
);
2683 if (term
->esc_nargs
<= 1) {
2684 if (!term
->cfg
.no_remote_resize
)
2685 request_resize(term
->frontend
,
2686 def(term
->esc_args
[0],
2687 term
->cfg
.width
), term
->rows
);
2691 case 'X': /* ECH: write N spaces w/o moving cursor */
2692 /* XXX VTTEST says this is vt220, vt510 manual
2694 compatibility(ANSIMIN
);
2696 int n
= def(term
->esc_args
[0], 1);
2698 unsigned long *p
= term
->cpos
;
2699 if (n
> term
->cols
- term
->curs
.x
)
2700 n
= term
->cols
- term
->curs
.x
;
2701 cursplus
= term
->curs
;
2703 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2704 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2705 check_selection(term
, term
->curs
, cursplus
);
2707 *p
++ = term
->erase_char
;
2708 term
->seen_disp_event
= TRUE
;
2711 case 'x': /* DECREQTPARM: report terminal characteristics */
2712 compatibility(VT100
);
2715 int i
= def(term
->esc_args
[0], 0);
2716 if (i
== 0 || i
== 1) {
2717 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2719 ldisc_send(term
->ldisc
, buf
, 20, 0);
2723 case 'Z': /* CBT: BackTab for xterm */
2724 compatibility(OTHER
);
2726 int i
= def(term
->esc_args
[0], 1);
2727 pos old_curs
= term
->curs
;
2729 for(;i
>0 && term
->curs
.x
>0; i
--) {
2732 } while (term
->curs
.x
>0 &&
2733 !term
->tabs
[term
->curs
.x
]);
2736 check_selection(term
, old_curs
, term
->curs
);
2739 case ANSI('c', '='): /* Hide or Show Cursor */
2740 compatibility(SCOANSI
);
2741 switch(term
->esc_args
[0]) {
2742 case 0: /* hide cursor */
2743 term
->cursor_on
= FALSE
;
2745 case 1: /* restore cursor */
2746 term
->big_cursor
= FALSE
;
2747 term
->cursor_on
= TRUE
;
2749 case 2: /* block cursor */
2750 term
->big_cursor
= TRUE
;
2751 term
->cursor_on
= TRUE
;
2755 case ANSI('C', '='):
2757 * set cursor start on scanline esc_args[0] and
2758 * end on scanline esc_args[1].If you set
2759 * the bottom scan line to a value less than
2760 * the top scan line, the cursor will disappear.
2762 compatibility(SCOANSI
);
2763 if (term
->esc_nargs
>= 2) {
2764 if (term
->esc_args
[0] > term
->esc_args
[1])
2765 term
->cursor_on
= FALSE
;
2767 term
->cursor_on
= TRUE
;
2770 case ANSI('D', '='):
2771 compatibility(SCOANSI
);
2772 term
->blink_is_real
= FALSE
;
2773 if (term
->esc_args
[0]>=1)
2774 term
->curr_attr
|= ATTR_BLINK
;
2776 term
->curr_attr
&= ~ATTR_BLINK
;
2778 case ANSI('E', '='):
2779 compatibility(SCOANSI
);
2780 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2782 case ANSI('F', '='): /* set normal foreground */
2783 compatibility(SCOANSI
);
2784 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
2786 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
2787 ((term
->esc_args
[0] & 0x8) << 1)) <<
2789 term
->curr_attr
&= ~ATTR_FGMASK
;
2790 term
->curr_attr
|= colour
;
2791 term
->default_attr
&= ~ATTR_FGMASK
;
2792 term
->default_attr
|= colour
;
2795 case ANSI('G', '='): /* set normal background */
2796 compatibility(SCOANSI
);
2797 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
2799 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
2800 ((term
->esc_args
[0] & 0x8) << 1)) <<
2802 term
->curr_attr
&= ~ATTR_BGMASK
;
2803 term
->curr_attr
|= colour
;
2804 term
->default_attr
&= ~ATTR_BGMASK
;
2805 term
->default_attr
|= colour
;
2808 case ANSI('L', '='):
2809 compatibility(SCOANSI
);
2810 term
->use_bce
= (term
->esc_args
[0] <= 0);
2811 term
->erase_char
= ERASE_CHAR
;
2813 term
->erase_char
= (' ' | ATTR_ASCII
|
2815 (ATTR_FGMASK
| ATTR_BGMASK
)));
2817 case ANSI('p', '"'): /* DECSCL: set compat level */
2819 * Allow the host to make this emulator a
2820 * 'perfect' VT102. This first appeared in
2821 * the VT220, but we do need to get back to
2822 * PuTTY mode so I won't check it.
2824 * The arg in 40..42,50 are a PuTTY extension.
2825 * The 2nd arg, 8bit vs 7bit is not checked.
2827 * Setting VT102 mode should also change
2828 * the Fkeys to generate PF* codes as a
2829 * real VT102 has no Fkeys. The VT220 does
2830 * this, F11..F13 become ESC,BS,LF other
2831 * Fkeys send nothing.
2833 * Note ESC c will NOT change this!
2836 switch (term
->esc_args
[0]) {
2838 term
->compatibility_level
&= ~TM_VTXXX
;
2839 term
->compatibility_level
|= TM_VT102
;
2842 term
->compatibility_level
&= ~TM_VTXXX
;
2843 term
->compatibility_level
|= TM_VT220
;
2847 if (term
->esc_args
[0] > 60 &&
2848 term
->esc_args
[0] < 70)
2849 term
->compatibility_level
|= TM_VTXXX
;
2853 term
->compatibility_level
&= TM_VTXXX
;
2856 term
->compatibility_level
= TM_PUTTY
;
2859 term
->compatibility_level
= TM_SCOANSI
;
2863 term
->compatibility_level
= TM_PUTTY
;
2869 /* Change the response to CSI c */
2870 if (term
->esc_args
[0] == 50) {
2873 strcpy(term
->id_string
, "\033[?");
2874 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2876 strcat(term
->id_string
, ";");
2877 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2878 strcat(term
->id_string
, lbuf
);
2880 strcat(term
->id_string
, "c");
2883 /* Is this a good idea ?
2884 * Well we should do a soft reset at this point ...
2886 if (!has_compat(VT420
) && has_compat(VT100
)) {
2887 if (!term
->cfg
.no_remote_resize
) {
2888 if (term
->reset_132
)
2889 request_resize(132, 24);
2891 request_resize(80, 24);
2899 term
->osc_w
= FALSE
;
2901 case 'P': /* Linux palette sequence */
2902 term
->termstate
= SEEN_OSC_P
;
2903 term
->osc_strlen
= 0;
2905 case 'R': /* Linux palette reset */
2906 palette_reset(term
->frontend
);
2907 term_invalidate(term
);
2908 term
->termstate
= TOPLEVEL
;
2910 case 'W': /* word-set */
2911 term
->termstate
= SEEN_OSC_W
;
2924 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2928 * Grotty hack to support xterm and DECterm title
2929 * sequences concurrently.
2931 if (term
->esc_args
[0] == 2) {
2932 term
->esc_args
[0] = 1;
2935 /* else fall through */
2937 term
->termstate
= OSC_STRING
;
2938 term
->osc_strlen
= 0;
2943 * This OSC stuff is EVIL. It takes just one character to get into
2944 * sysline mode and it's not initially obvious how to get out.
2945 * So I've added CR and LF as string aborts.
2946 * This shouldn't effect compatibility as I believe embedded
2947 * control characters are supposed to be interpreted (maybe?)
2948 * and they don't display anything useful anyway.
2952 if (c
== '\012' || c
== '\015') {
2953 term
->termstate
= TOPLEVEL
;
2954 } else if (c
== 0234 || c
== '\007') {
2956 * These characters terminate the string; ST and BEL
2957 * terminate the sequence and trigger instant
2958 * processing of it, whereas ESC goes back to SEEN_ESC
2959 * mode unless it is followed by \, in which case it is
2960 * synonymous with ST in the first place.
2963 term
->termstate
= TOPLEVEL
;
2964 } else if (c
== '\033')
2965 term
->termstate
= OSC_MAYBE_ST
;
2966 else if (term
->osc_strlen
< OSC_STR_MAX
)
2967 term
->osc_string
[term
->osc_strlen
++] = c
;
2971 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2973 if (c
>= '0' && c
<= '9')
2975 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2977 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2980 term
->termstate
= TOPLEVEL
;
2983 term
->osc_string
[term
->osc_strlen
++] = val
;
2984 if (term
->osc_strlen
>= 7) {
2985 palette_set(term
->frontend
, term
->osc_string
[0],
2986 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2987 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2988 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2989 term_invalidate(term
);
2990 term
->termstate
= TOPLEVEL
;
3006 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3009 term
->termstate
= OSC_STRING
;
3010 term
->osc_strlen
= 0;
3014 term
->termstate
= TOPLEVEL
;
3015 term
->seen_disp_event
= TRUE
;
3018 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3021 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3024 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3027 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3030 * From the VT100 Manual
3031 * NOTE: The special graphics characters in the VT100
3032 * are different from those in the VT52
3034 * From VT102 manual:
3035 * 137 _ Blank - Same
3036 * 140 ` Reserved - Humm.
3037 * 141 a Solid rectangle - Similar
3038 * 142 b 1/ - Top half of fraction for the
3039 * 143 c 3/ - subscript numbers below.
3042 * 146 f Degrees - Same
3043 * 147 g Plus or minus - Same
3045 * 151 i Ellipsis (dots)
3048 * 154 l Bar at scan 0
3049 * 155 m Bar at scan 1
3050 * 156 n Bar at scan 2
3051 * 157 o Bar at scan 3 - Similar
3052 * 160 p Bar at scan 4 - Similar
3053 * 161 q Bar at scan 5 - Similar
3054 * 162 r Bar at scan 6 - Same
3055 * 163 s Bar at scan 7 - Similar
3070 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
3073 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
3076 move(term
, 0, 0, 0);
3079 if (term
->curs
.y
== 0)
3080 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3081 else if (term
->curs
.y
> 0)
3084 term
->wrapnext
= FALSE
;
3087 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3091 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3095 /* XXX Print cursor line */
3098 /* XXX Start controller mode */
3101 /* XXX Stop controller mode */
3105 term
->termstate
= VT52_Y1
;
3109 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
3112 term
->app_keypad_keys
= TRUE
;
3115 term
->app_keypad_keys
= FALSE
;
3118 /* XXX This should switch to VT100 mode not current or default
3119 * VT mode. But this will only have effect in a VT220+
3122 term
->vt52_mode
= FALSE
;
3123 term
->blink_is_real
= term
->cfg
.blinktext
;
3127 /* XXX Enter auto print mode */
3130 /* XXX Exit auto print mode */
3133 /* XXX Print screen */
3139 /* compatibility(ATARI) */
3140 move(term
, 0, 0, 0);
3141 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3145 /* compatibility(ATARI) */
3146 if (term
->curs
.y
<= term
->marg_b
)
3147 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
3150 /* compatibility(ATARI) */
3151 if (term
->curs
.y
<= term
->marg_b
)
3152 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
3155 /* compatibility(ATARI) */
3156 term
->termstate
= VT52_FG
;
3159 /* compatibility(ATARI) */
3160 term
->termstate
= VT52_BG
;
3163 /* compatibility(ATARI) */
3164 erase_lots(term
, FALSE
, TRUE
, FALSE
);
3168 /* compatibility(ATARI) */
3169 term
->cursor_on
= TRUE
;
3172 /* compatibility(ATARI) */
3173 term
->cursor_on
= FALSE
;
3175 /* case 'j': Save cursor position - broken on ST */
3176 /* case 'k': Restore cursor position */
3178 /* compatibility(ATARI) */
3179 erase_lots(term
, TRUE
, TRUE
, TRUE
);
3181 term
->wrapnext
= FALSE
;
3185 /* compatibility(ATARI) */
3186 erase_lots(term
, TRUE
, TRUE
, FALSE
);
3189 /* compatibility(ATARI) */
3190 term
->curr_attr
|= ATTR_REVERSE
;
3193 /* compatibility(ATARI) */
3194 term
->curr_attr
&= ~ATTR_REVERSE
;
3196 case 'v': /* wrap Autowrap on - Wyse style */
3197 /* compatibility(ATARI) */
3200 case 'w': /* Autowrap off */
3201 /* compatibility(ATARI) */
3206 /* compatibility(OTHER) */
3207 term
->vt52_bold
= FALSE
;
3208 term
->curr_attr
= ATTR_DEFAULT
;
3210 term
->erase_char
= (' ' | ATTR_ASCII
|
3212 (ATTR_FGMASK
| ATTR_BGMASK
)));
3215 /* compatibility(VI50) */
3216 term
->curr_attr
|= ATTR_UNDER
;
3219 /* compatibility(VI50) */
3220 term
->curr_attr
&= ~ATTR_UNDER
;
3223 /* compatibility(VI50) */
3224 term
->vt52_bold
= TRUE
;
3225 term
->curr_attr
|= ATTR_BOLD
;
3228 /* compatibility(VI50) */
3229 term
->vt52_bold
= FALSE
;
3230 term
->curr_attr
&= ~ATTR_BOLD
;
3236 term
->termstate
= VT52_Y2
;
3237 move(term
, term
->curs
.x
, c
- ' ', 0);
3240 term
->termstate
= TOPLEVEL
;
3241 move(term
, c
- ' ', term
->curs
.y
, 0);
3246 term
->termstate
= TOPLEVEL
;
3247 term
->curr_attr
&= ~ATTR_FGMASK
;
3248 term
->curr_attr
&= ~ATTR_BOLD
;
3249 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
3250 if ((c
& 0x8) || term
->vt52_bold
)
3251 term
->curr_attr
|= ATTR_BOLD
;
3254 term
->erase_char
= (' ' | ATTR_ASCII
|
3256 (ATTR_FGMASK
| ATTR_BGMASK
)));
3259 term
->termstate
= TOPLEVEL
;
3260 term
->curr_attr
&= ~ATTR_BGMASK
;
3261 term
->curr_attr
&= ~ATTR_BLINK
;
3262 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3264 /* Note: bold background */
3266 term
->curr_attr
|= ATTR_BLINK
;
3269 term
->erase_char
= (' ' | ATTR_ASCII
|
3271 (ATTR_FGMASK
| ATTR_BGMASK
)));
3274 default: break; /* placate gcc warning about enum use */
3276 if (term
->selstate
!= NO_SELECTION
) {
3277 pos cursplus
= term
->curs
;
3279 check_selection(term
, term
->curs
, cursplus
);
3283 term_print_flush(term
);
3288 * Compare two lines to determine whether they are sufficiently
3289 * alike to scroll-optimise one to the other. Return the degree of
3292 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3296 for (i
= n
= 0; i
< term
->cols
; i
++)
3297 n
+= (*a
++ == *b
++);
3303 * Given a context, update the window. Out of paranoia, we don't
3304 * allow WM_PAINT responses to do scrolling optimisations.
3306 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3308 int i
, j
, our_curs_y
, our_curs_x
;
3309 unsigned long rv
, cursor
;
3312 long cursor_background
= ERASE_CHAR
;
3313 unsigned long ticks
;
3314 #ifdef OPTIMISE_SCROLL
3315 struct scrollregion
*sr
;
3316 #endif /* OPTIMISE_SCROLL */
3319 * Check the visual bell state.
3321 if (term
->in_vbell
) {
3322 ticks
= GETTICKCOUNT();
3323 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3324 term
->in_vbell
= FALSE
;
3327 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3330 * screen array, disptop, scrtop,
3332 * cfg.blinkpc, blink_is_real, tblinker,
3333 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3336 /* Has the cursor position or type changed ? */
3337 if (term
->cursor_on
) {
3338 if (term
->has_focus
) {
3339 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3340 cursor
= TATTR_ACTCURS
;
3344 cursor
= TATTR_PASCURS
;
3346 cursor
|= TATTR_RIGHTCURS
;
3349 our_curs_y
= term
->curs
.y
- term
->disptop
;
3352 * Adjust the cursor position in the case where it's
3353 * resting on the right-hand half of a CJK wide character.
3354 * xterm's behaviour here, which seems adequate to me, is
3355 * to display the cursor covering the _whole_ character,
3356 * exactly as if it were one space to the left.
3358 unsigned long *ldata
= lineptr(term
->curs
.y
);
3359 our_curs_x
= term
->curs
.x
;
3360 if (our_curs_x
> 0 &&
3361 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3365 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3367 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3369 if (term
->dispcurs
> term
->disptext
&&
3370 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3371 term
->dispcurs
[-1] |= ATTR_INVALID
;
3372 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3373 term
->dispcurs
[1] |= ATTR_INVALID
;
3374 *term
->dispcurs
|= ATTR_INVALID
;
3377 term
->dispcurs
= NULL
;
3379 #ifdef OPTIMISE_SCROLL
3381 sr
= term
->scrollhead
;
3383 struct scrollregion
*next
= sr
->next
;
3384 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
3388 term
->scrollhead
= term
->scrolltail
= NULL
;
3389 #endif /* OPTIMISE_SCROLL */
3391 /* The normal screen data */
3392 for (i
= 0; i
< term
->rows
; i
++) {
3393 unsigned long *ldata
;
3395 int idx
, dirty_line
, dirty_run
, selected
;
3396 unsigned long attr
= 0;
3397 int updated_line
= 0;
3400 int last_run_dirty
= 0;
3402 scrpos
.y
= i
+ term
->disptop
;
3403 ldata
= lineptr(scrpos
.y
);
3404 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3406 idx
= i
* (term
->cols
+ 1);
3407 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3408 term
->disptext
[idx
+ term
->cols
]);
3409 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3411 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3412 unsigned long tattr
, tchar
;
3413 unsigned long *d
= ldata
+ j
;
3417 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3418 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3419 switch (tchar
& CSET_MASK
) {
3421 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3424 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3427 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3430 tattr
|= (tchar
& CSET_MASK
);
3432 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3435 /* Video reversing things */
3436 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3437 if (term
->seltype
== LEXICOGRAPHIC
)
3438 selected
= (posle(term
->selstart
, scrpos
) &&
3439 poslt(scrpos
, term
->selend
));
3441 selected
= (posPle(term
->selstart
, scrpos
) &&
3442 posPlt(scrpos
, term
->selend
));
3446 ^ (selected ? ATTR_REVERSE
: 0));
3448 /* 'Real' blinking ? */
3449 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3450 if (term
->has_focus
&& term
->tblinker
) {
3451 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
3453 tattr
&= ~ATTR_BLINK
;
3457 * Check the font we'll _probably_ be using to see if
3458 * the character is wide when we don't want it to be.
3460 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3461 if ((tattr
& ATTR_WIDE
) == 0 &&
3462 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3463 tattr
|= ATTR_NARROW
;
3464 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3465 tattr
|= ATTR_NARROW
;
3467 /* Cursor here ? Save the 'background' */
3468 if (i
== our_curs_y
&& j
== our_curs_x
) {
3469 cursor_background
= tattr
| tchar
;
3470 term
->dispcurs
= term
->disptext
+ idx
;
3473 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3476 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3477 j
- start
>= sizeof(ch
));
3479 /* Special hack for VT100 Linedraw glyphs */
3480 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3481 && tchar
<= 0xBD) break_run
= TRUE
;
3483 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3484 if ((tchar
| tattr
) == term
->disptext
[idx
])
3486 else if (!dirty_run
&& ccount
== 1)
3491 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3492 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3498 if (term
->ucsdata
->dbcs_screenfont
)
3499 last_run_dirty
= dirty_run
;
3500 dirty_run
= dirty_line
;
3503 if ((tchar
| tattr
) != term
->disptext
[idx
])
3505 ch
[ccount
++] = (char) tchar
;
3506 term
->disptext
[idx
] = tchar
| tattr
;
3508 /* If it's a wide char step along to the next one. */
3509 if (tattr
& ATTR_WIDE
) {
3510 if (++j
< term
->cols
) {
3514 * By construction above, the cursor should not
3515 * be on the right-hand half of this character.
3518 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3519 if (term
->disptext
[idx
] != *d
)
3521 term
->disptext
[idx
] = *d
;
3525 if (dirty_run
&& ccount
> 0) {
3526 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3530 /* Cursor on this line ? (and changed) */
3531 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3532 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3533 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3534 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3535 term
->curstype
= cursor
;
3541 * Flick the switch that says if blinking things should be shown or hidden.
3544 void term_blink(Terminal
*term
, int flg
)
3546 long now
, blink_diff
;
3548 now
= GETTICKCOUNT();
3549 blink_diff
= now
- term
->last_tblink
;
3551 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3552 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3553 term
->last_tblink
= now
;
3554 term
->tblinker
= !term
->tblinker
;
3559 term
->last_blink
= now
;
3563 blink_diff
= now
- term
->last_blink
;
3565 /* Make sure the cursor blinks no faster than system blink rate */
3566 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3569 term
->last_blink
= now
;
3570 term
->blinker
= !term
->blinker
;
3574 * Invalidate the whole screen so it will be repainted in full.
3576 void term_invalidate(Terminal
*term
)
3580 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3581 term
->disptext
[i
] = ATTR_INVALID
;
3585 * Paint the window in response to a WM_PAINT message.
3587 void term_paint(Terminal
*term
, Context ctx
,
3588 int left
, int top
, int right
, int bottom
, int immediately
)
3591 if (left
< 0) left
= 0;
3592 if (top
< 0) top
= 0;
3593 if (right
>= term
->cols
) right
= term
->cols
-1;
3594 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3596 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3597 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3598 LATTR_MODE
) == LATTR_NORM
)
3599 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3600 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3602 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3603 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3606 /* This should happen soon enough, also for some reason it sometimes
3607 * fails to actually do anything when re-sizing ... painting the wrong
3611 do_paint (term
, ctx
, FALSE
);
3615 * Attempt to scroll the scrollback. The second parameter gives the
3616 * position we want to scroll to; the first is +1 to denote that
3617 * this position is relative to the beginning of the scrollback, -1
3618 * to denote it is relative to the end, and 0 to denote that it is
3619 * relative to the current position.
3621 void term_scroll(Terminal
*term
, int rel
, int where
)
3623 int sbtop
= -sblines(term
);
3624 #ifdef OPTIMISE_SCROLL
3625 int olddisptop
= term
->disptop
;
3627 #endif /* OPTIMISE_SCROLL */
3629 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3630 if (term
->disptop
< sbtop
)
3631 term
->disptop
= sbtop
;
3632 if (term
->disptop
> 0)
3635 #ifdef OPTIMISE_SCROLL
3636 shift
= (term
->disptop
- olddisptop
);
3637 if (shift
< term
->rows
&& shift
> -term
->rows
)
3638 scroll_display(term
, 0, term
->rows
- 1, shift
);
3639 #endif /* OPTIMISE_SCROLL */
3643 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
3646 wchar_t *wbptr
; /* where next char goes within workbuf */
3648 int wblen
= 0; /* workbuf len */
3649 int buflen
; /* amount of memory allocated to workbuf */
3651 buflen
= 5120; /* Default size */
3652 workbuf
= snewn(buflen
, wchar_t);
3653 wbptr
= workbuf
; /* start filling here */
3654 old_top_x
= top
.x
; /* needed for rect==1 */
3656 while (poslt(top
, bottom
)) {
3658 unsigned long *ldata
= lineptr(top
.y
);
3662 * nlpos will point at the maximum position on this line we
3663 * should copy up to. So we start it at the end of the
3667 nlpos
.x
= term
->cols
;
3670 * ... move it backwards if there's unused space at the end
3671 * of the line (and also set `nl' if this is the case,
3672 * because in normal selection mode this means we need a
3673 * newline at the end)...
3675 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3676 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3677 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3678 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3679 && poslt(top
, nlpos
))
3681 if (poslt(nlpos
, bottom
))
3683 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3684 /* Ignore the last char on the line in a WRAPPED2 line. */
3689 * ... and then clip it to the terminal x coordinate if
3690 * we're doing rectangular selection. (In this case we
3691 * still did the above, so that copying e.g. the right-hand
3692 * column from a table doesn't fill with spaces on the
3696 if (nlpos
.x
> bottom
.x
)
3698 nl
= (top
.y
< bottom
.y
);
3701 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3704 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3706 wchar_t cbuf
[16], *p
;
3707 int uc
= (ldata
[top
.x
] & 0xFFFF);
3710 if (uc
== UCSWIDE
) {
3715 switch (uc
& CSET_MASK
) {
3717 if (!term
->cfg
.rawcnp
) {
3718 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3722 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3725 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3728 switch (uc
& CSET_MASK
) {
3730 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3733 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3737 set
= (uc
& CSET_MASK
);
3738 c
= (uc
& CHAR_MASK
);
3742 if (DIRECT_FONT(uc
)) {
3743 if (c
>= ' ' && c
!= 0x7F) {
3747 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3749 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3750 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3754 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3758 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3765 for (p
= cbuf
; *p
; p
++) {
3766 /* Enough overhead for trailing NL and nul */
3767 if (wblen
>= buflen
- 16) {
3769 workbuf
= sresize(workbuf
, buflen
, wchar_t);
3770 wbptr
= workbuf
+ wblen
;
3779 for (i
= 0; i
< sel_nl_sz
; i
++) {
3781 *wbptr
++ = sel_nl
[i
];
3785 top
.x
= rect ? old_top_x
: 0;
3787 #if SELECTION_NUL_TERMINATED
3791 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
3792 if (buflen
> 0) /* indicates we allocated this buffer */
3796 void term_copyall(Terminal
*term
)
3799 top
.y
= -sblines(term
);
3801 clipme(term
, top
, term
->curs
, 0, TRUE
);
3805 * The wordness array is mainly for deciding the disposition of the
3806 * US-ASCII characters.
3808 static int wordtype(Terminal
*term
, int uc
)
3811 int start
, end
, ctype
;
3813 static const struct ucsword ucs_words
[] = {
3819 0x037e, 0x037e, 1}, /* Greek question mark */
3821 0x0387, 0x0387, 1}, /* Greek ano teleia */
3823 0x055a, 0x055f, 1}, /* Armenian punctuation */
3825 0x0589, 0x0589, 1}, /* Armenian full stop */
3827 0x0700, 0x070d, 1}, /* Syriac punctuation */
3829 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3831 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3833 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3835 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3837 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3839 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3841 0x2000, 0x200a, 0}, /* Various spaces */
3843 0x2070, 0x207f, 2}, /* superscript */
3845 0x2080, 0x208f, 2}, /* subscript */
3847 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3849 0x3000, 0x3000, 0}, /* ideographic space */
3851 0x3001, 0x3020, 1}, /* ideographic punctuation */
3853 0x303f, 0x309f, 3}, /* Hiragana */
3855 0x30a0, 0x30ff, 3}, /* Katakana */
3857 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3859 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3861 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3863 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3865 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3867 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3869 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3871 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3873 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3877 const struct ucsword
*wptr
;
3879 uc
&= (CSET_MASK
| CHAR_MASK
);
3881 switch (uc
& CSET_MASK
) {
3883 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3886 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3889 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3892 switch (uc
& CSET_MASK
) {
3894 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3897 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3901 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3902 * fail as there's such a thing as a double width space. :-(
3904 if (term
->ucsdata
->dbcs_screenfont
&&
3905 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3909 return term
->wordness
[uc
];
3911 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3912 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3920 * Spread the selection outwards according to the selection mode.
3922 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3924 unsigned long *ldata
;
3926 int topy
= -sblines(term
);
3928 ldata
= lineptr(p
.y
);
3930 switch (term
->selmode
) {
3933 * In this mode, every character is a separate unit, except
3934 * for runs of spaces at the end of a non-wrapping line.
3936 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3937 unsigned long *q
= ldata
+ term
->cols
;
3938 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3940 if (q
== ldata
+ term
->cols
)
3942 if (p
.x
>= q
- ldata
)
3943 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3948 * In this mode, the units are maximal runs of characters
3949 * whose `wordness' has the same value.
3951 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3954 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3955 term
->cols
-1 : term
->cols
);
3956 if (p
.x
< maxcols
-1) {
3957 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3962 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3963 unsigned long *ldata2
;
3964 ldata2
= lineptr(p
.y
+1);
3965 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3978 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3983 unsigned long *ldata2
;
3987 ldata2
= lineptr(p
.y
-1);
3988 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3989 term
->cols
-1 : term
->cols
);
3990 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3991 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
4006 * In this mode, every line is a unit.
4008 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
4014 static void sel_spread(Terminal
*term
)
4016 if (term
->seltype
== LEXICOGRAPHIC
) {
4017 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
4018 decpos(term
->selend
);
4019 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
4020 incpos(term
->selend
);
4024 void term_do_paste(Terminal
*term
)
4029 get_clip(term
->frontend
, &data
, &len
);
4030 if (data
&& len
> 0) {
4033 term_seen_key_event(term
); /* pasted data counts */
4035 if (term
->paste_buffer
)
4036 sfree(term
->paste_buffer
);
4037 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
4038 term
->paste_buffer
= snewn(len
, wchar_t);
4041 while (p
< data
+ len
) {
4042 while (p
< data
+ len
&&
4043 !(p
<= data
+ len
- sel_nl_sz
&&
4044 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
4049 for (i
= 0; i
< p
- q
; i
++) {
4050 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
4054 if (p
<= data
+ len
- sel_nl_sz
&&
4055 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
4056 term
->paste_buffer
[term
->paste_len
++] = '\015';
4062 /* Assume a small paste will be OK in one go. */
4063 if (term
->paste_len
< 256) {
4065 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
4066 if (term
->paste_buffer
)
4067 sfree(term
->paste_buffer
);
4068 term
->paste_buffer
= 0;
4069 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
4072 get_clip(term
->frontend
, NULL
, NULL
);
4075 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
4076 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
4079 unsigned long *ldata
;
4080 int raw_mouse
= (term
->xterm_mouse
&&
4081 !term
->cfg
.no_mouse_rep
&&
4082 !(term
->cfg
.mouse_override
&& shift
));
4083 int default_seltype
;
4087 if (a
== MA_DRAG
&& !raw_mouse
)
4088 term_scroll(term
, 0, -1);
4090 if (y
>= term
->rows
) {
4092 if (a
== MA_DRAG
&& !raw_mouse
)
4093 term_scroll(term
, 0, +1);
4102 if (x
>= term
->cols
)
4105 selpoint
.y
= y
+ term
->disptop
;
4107 ldata
= lineptr(selpoint
.y
);
4108 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
4112 int encstate
= 0, r
, c
;
4119 encstate
= 0x20; /* left button down */
4130 case MBT_WHEEL_DOWN
:
4133 default: break; /* placate gcc warning about enum use */
4137 if (term
->xterm_mouse
== 1)
4143 term
->mouse_is_down
= 0;
4146 if (term
->mouse_is_down
== braw
)
4148 term
->mouse_is_down
= braw
;
4150 default: break; /* placate gcc warning about enum use */
4159 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
4160 ldisc_send(term
->ldisc
, abuf
, 6, 0);
4166 * Set the selection type (rectangular or normal) at the start
4167 * of a selection attempt, from the state of Alt.
4169 if (!alt
^ !term
->cfg
.rect_select
)
4170 default_seltype
= RECTANGULAR
;
4172 default_seltype
= LEXICOGRAPHIC
;
4174 if (term
->selstate
== NO_SELECTION
) {
4175 term
->seltype
= default_seltype
;
4178 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
4180 term
->selstate
= ABOUT_TO
;
4181 term
->seltype
= default_seltype
;
4182 term
->selanchor
= selpoint
;
4183 term
->selmode
= SM_CHAR
;
4184 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
4186 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
4187 term
->selstate
= DRAGGING
;
4188 term
->selstart
= term
->selanchor
= selpoint
;
4189 term
->selend
= term
->selstart
;
4190 incpos(term
->selend
);
4192 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
4193 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
4194 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
4196 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
4197 term
->selstate
== SELECTED
) {
4198 if (term
->seltype
== LEXICOGRAPHIC
) {
4200 * For normal selection, we extend by moving
4201 * whichever end of the current selection is closer
4204 if (posdiff(selpoint
, term
->selstart
) <
4205 posdiff(term
->selend
, term
->selstart
) / 2) {
4206 term
->selanchor
= term
->selend
;
4207 decpos(term
->selanchor
);
4209 term
->selanchor
= term
->selstart
;
4213 * For rectangular selection, we have a choice of
4214 * _four_ places to put selanchor and selpoint: the
4215 * four corners of the selection.
4217 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
4218 term
->selanchor
.x
= term
->selend
.x
-1;
4220 term
->selanchor
.x
= term
->selstart
.x
;
4222 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
4223 term
->selanchor
.y
= term
->selend
.y
;
4225 term
->selanchor
.y
= term
->selstart
.y
;
4227 term
->selstate
= DRAGGING
;
4229 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
4230 term
->selanchor
= selpoint
;
4231 term
->selstate
= DRAGGING
;
4232 if (term
->seltype
== LEXICOGRAPHIC
) {
4234 * For normal selection, we set (selstart,selend) to
4235 * (selpoint,selanchor) in some order.
4237 if (poslt(selpoint
, term
->selanchor
)) {
4238 term
->selstart
= selpoint
;
4239 term
->selend
= term
->selanchor
;
4240 incpos(term
->selend
);
4242 term
->selstart
= term
->selanchor
;
4243 term
->selend
= selpoint
;
4244 incpos(term
->selend
);
4248 * For rectangular selection, we may need to
4249 * interchange x and y coordinates (if the user has
4250 * dragged in the -x and +y directions, or vice versa).
4252 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
4253 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
4254 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
4255 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
4258 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
4260 if (term
->selstate
== DRAGGING
) {
4262 * We've completed a selection. We now transfer the
4263 * data to the clipboard.
4265 clipme(term
, term
->selstart
, term
->selend
,
4266 (term
->seltype
== RECTANGULAR
), FALSE
);
4267 term
->selstate
= SELECTED
;
4269 term
->selstate
= NO_SELECTION
;
4270 } else if (bcooked
== MBT_PASTE
4272 #if MULTICLICK_ONLY_EVENT
4273 || a
== MA_2CLK
|| a
== MA_3CLK
4276 request_paste(term
->frontend
);
4282 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
4283 unsigned int modifiers
, unsigned int flags
)
4287 int prependesc
= FALSE
;
4291 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
4292 for (i
= 0; i
< tlen
; i
++)
4293 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
4294 fprintf(stderr
, "\n");
4298 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
4301 /* Currently, Meta always just prefixes everything with ESC. */
4302 if (modifiers
& PKM_META
)
4304 modifiers
&= ~PKM_META
;
4307 * Alt is only used for Alt+keypad, which isn't supported yet, so
4310 modifiers
&= ~PKM_ALT
;
4312 /* Standard local function keys */
4313 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
4315 if (keysym
== PK_PAGEUP
)
4316 /* scroll up one page */;
4317 if (keysym
== PK_PAGEDOWN
)
4318 /* scroll down on page */;
4319 if (keysym
== PK_INSERT
)
4320 term_do_paste(term
);
4323 if (keysym
== PK_PAGEUP
)
4324 /* scroll up one line */;
4325 if (keysym
== PK_PAGEDOWN
)
4326 /* scroll down one line */;
4327 /* Control-Numlock for app-keypad mode switch */
4328 if (keysym
== PK_PF1
)
4329 term
->app_keypad_keys
^= 1;
4333 if (modifiers
& PKM_ALT
) {
4334 /* Alt+F4 (close) */
4335 /* Alt+Return (full screen) */
4336 /* Alt+Space (system menu) */
4339 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
4340 text
[0] >= 0x20 && text
[0] <= 0x7e) {
4341 /* ASCII chars + Control */
4342 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
4343 (text
[0] >= 0x61 && text
[0] <= 0x7a))
4347 * Control-2 should return ^@ (0x00), Control-6 should return
4348 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4349 * the DOS keyboard handling did it, and we have nothing better
4350 * to do with the key combo in question, we'll also map
4351 * Control-Backquote to ^\ (0x1C).
4354 case ' ': text
[0] = 0x00; break;
4355 case '-': text
[0] = 0x1f; break;
4356 case '/': text
[0] = 0x1f; break;
4357 case '2': text
[0] = 0x00; break;
4358 case '3': text
[0] = 0x1b; break;
4359 case '4': text
[0] = 0x1c; break;
4360 case '5': text
[0] = 0x1d; break;
4361 case '6': text
[0] = 0x1e; break;
4362 case '7': text
[0] = 0x1f; break;
4363 case '8': text
[0] = 0x7f; break;
4364 case '`': text
[0] = 0x1c; break;
4369 /* Nethack keypad */
4370 if (term
->cfg
.nethack_keypad
) {
4373 case PK_KP1
: c
= 'b'; break;
4374 case PK_KP2
: c
= 'j'; break;
4375 case PK_KP3
: c
= 'n'; break;
4376 case PK_KP4
: c
= 'h'; break;
4377 case PK_KP5
: c
= '.'; break;
4378 case PK_KP6
: c
= 'l'; break;
4379 case PK_KP7
: c
= 'y'; break;
4380 case PK_KP8
: c
= 'k'; break;
4381 case PK_KP9
: c
= 'u'; break;
4382 default: break; /* else gcc warns `enum value not used' */
4386 if (modifiers
& PKM_CONTROL
)
4388 else if (modifiers
& PKM_SHIFT
)
4396 /* Numeric Keypad */
4397 if (PK_ISKEYPAD(keysym
)) {
4401 * In VT400 mode, PFn always emits an escape sequence. In
4402 * Linux and tilde modes, this only happens in app keypad mode.
4404 if (term
->cfg
.funky_type
== FUNKY_VT400
||
4405 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
4406 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
4407 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
4409 case PK_PF1
: xkey
= 'P'; break;
4410 case PK_PF2
: xkey
= 'Q'; break;
4411 case PK_PF3
: xkey
= 'R'; break;
4412 case PK_PF4
: xkey
= 'S'; break;
4413 default: break; /* else gcc warns `enum value not used' */
4416 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
4418 case PK_KP0
: xkey
= 'p'; break;
4419 case PK_KP1
: xkey
= 'q'; break;
4420 case PK_KP2
: xkey
= 'r'; break;
4421 case PK_KP3
: xkey
= 's'; break;
4422 case PK_KP4
: xkey
= 't'; break;
4423 case PK_KP5
: xkey
= 'u'; break;
4424 case PK_KP6
: xkey
= 'v'; break;
4425 case PK_KP7
: xkey
= 'w'; break;
4426 case PK_KP8
: xkey
= 'x'; break;
4427 case PK_KP9
: xkey
= 'y'; break;
4428 case PK_KPDECIMAL
: xkey
= 'n'; break;
4429 case PK_KPENTER
: xkey
= 'M'; break;
4430 default: break; /* else gcc warns `enum value not used' */
4432 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
4434 * xterm can't see the layout of the keypad, so it has
4435 * to rely on the X keysyms returned by the keys.
4436 * Hence, we look at the strings here, not the PuTTY
4437 * keysyms (which describe the layout).
4441 if (modifiers
& PKM_SHIFT
)
4446 case '/': xkey
= 'o'; break;
4447 case '*': xkey
= 'j'; break;
4448 case '-': xkey
= 'm'; break;
4452 * In all other modes, we try to retain the layout of
4453 * the DEC keypad in application mode.
4457 /* This key covers the '-' and ',' keys on a VT220 */
4458 if (modifiers
& PKM_SHIFT
)
4459 xkey
= 'm'; /* VT220 '-' */
4461 xkey
= 'l'; /* VT220 ',' */
4463 case PK_KPMINUS
: xkey
= 'm'; break;
4464 case PK_KPCOMMA
: xkey
= 'l'; break;
4465 default: break; /* else gcc warns `enum value not used' */
4470 if (term
->vt52_mode
) {
4471 if (xkey
>= 'P' && xkey
<= 'S')
4472 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4474 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
4476 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4479 /* Not in application mode -- treat the number pad as arrow keys? */
4480 if ((flags
& PKF_NUMLOCK
) == 0) {
4482 case PK_KP0
: keysym
= PK_INSERT
; break;
4483 case PK_KP1
: keysym
= PK_END
; break;
4484 case PK_KP2
: keysym
= PK_DOWN
; break;
4485 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
4486 case PK_KP4
: keysym
= PK_LEFT
; break;
4487 case PK_KP5
: keysym
= PK_REST
; break;
4488 case PK_KP6
: keysym
= PK_RIGHT
; break;
4489 case PK_KP7
: keysym
= PK_HOME
; break;
4490 case PK_KP8
: keysym
= PK_UP
; break;
4491 case PK_KP9
: keysym
= PK_PAGEUP
; break;
4492 default: break; /* else gcc warns `enum value not used' */
4497 /* Miscellaneous keys */
4504 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
4505 else if (modifiers
== PKM_SHIFT
)
4506 /* We do the opposite of what is configured */
4507 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
4513 else if (modifiers
== PKM_SHIFT
)
4514 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
4517 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4519 if (modifiers
== PKM_CONTROL
)
4524 case PK_KPENTER
: /* Odd keypad modes handled above */
4525 if (modifiers
== 0) {
4527 if (term
->cr_lf_return
)
4531 default: break; /* else gcc warns `enum value not used' */
4534 /* SCO function keys and editing keys */
4535 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
4536 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
4537 static char const codes
[] =
4538 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4539 int index
= keysym
- PK_F1
;
4541 if (modifiers
& PKM_SHIFT
) index
+= 12;
4542 if (modifiers
& PKM_CONTROL
) index
+= 24;
4543 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
4546 if (PK_ISEDITING(keysym
)) {
4550 case PK_DELETE
: *p
++ = 0x7f; goto done
;
4551 case PK_HOME
: xkey
= 'H'; break;
4552 case PK_INSERT
: xkey
= 'L'; break;
4553 case PK_END
: xkey
= 'F'; break;
4554 case PK_PAGEUP
: xkey
= 'I'; break;
4555 case PK_PAGEDOWN
: xkey
= 'G'; break;
4556 default: break; /* else gcc warns `enum value not used' */
4558 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4562 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
4565 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
4566 /* Xterm shuffles these keys, apparently. */
4568 case PK_HOME
: keysym
= PK_INSERT
; break;
4569 case PK_INSERT
: keysym
= PK_HOME
; break;
4570 case PK_DELETE
: keysym
= PK_END
; break;
4571 case PK_END
: keysym
= PK_PAGEUP
; break;
4572 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
4573 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
4574 default: break; /* else gcc warns `enum value not used' */
4579 if (term
->cfg
.rxvt_homeend
&&
4580 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
4581 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
4585 if (term
->vt52_mode
) {
4589 * A real VT52 doesn't have these, and a VT220 doesn't
4590 * send anything for them in VT52 mode.
4593 case PK_HOME
: xkey
= 'H'; break;
4594 case PK_INSERT
: xkey
= 'L'; break;
4595 case PK_DELETE
: xkey
= 'M'; break;
4596 case PK_END
: xkey
= 'E'; break;
4597 case PK_PAGEUP
: xkey
= 'I'; break;
4598 case PK_PAGEDOWN
: xkey
= 'G'; break;
4599 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
4601 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4606 case PK_HOME
: code
= 1; break;
4607 case PK_INSERT
: code
= 2; break;
4608 case PK_DELETE
: code
= 3; break;
4609 case PK_END
: code
= 4; break;
4610 case PK_PAGEUP
: code
= 5; break;
4611 case PK_PAGEDOWN
: code
= 6; break;
4612 default: code
= 0; break; /* else gcc warns `enum value not used' */
4614 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
4618 if (PK_ISFKEY(keysym
)) {
4619 /* Map Shift+F1-F10 to F11-F20 */
4620 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
4622 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
4624 /* XXX This overrides the XTERM/VT52 mode below */
4626 if (keysym
>= PK_F6
) offt
++;
4627 if (keysym
>= PK_F12
) offt
++;
4628 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
4629 'P' + keysym
- PK_F1
- offt
);
4632 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
4633 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
4636 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
4637 if (term
->vt52_mode
)
4638 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
4640 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
4643 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
4647 if (PK_ISCURSOR(keysym
)) {
4651 case PK_UP
: xkey
= 'A'; break;
4652 case PK_DOWN
: xkey
= 'B'; break;
4653 case PK_RIGHT
: xkey
= 'C'; break;
4654 case PK_LEFT
: xkey
= 'D'; break;
4655 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
4656 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
4658 if (term
->vt52_mode
)
4659 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4661 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
4663 /* Useful mapping of Ctrl-arrows */
4664 if (modifiers
== PKM_CONTROL
)
4668 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4670 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4676 if (p
> output
|| tlen
> 0) {
4678 * Interrupt an ongoing paste. I'm not sure
4679 * this is sensible, but for the moment it's
4680 * preferable to having to faff about buffering
4686 * We need not bother about stdin backlogs
4687 * here, because in GUI PuTTY we can't do
4688 * anything about it anyway; there's no means
4689 * of asking Windows to hold off on KEYDOWN
4690 * messages. We _have_ to buffer everything
4693 term_seen_key_event(term
);
4697 fprintf(stderr
, "sending ESC\n");
4699 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
4704 fprintf(stderr
, "sending %d bytes:", p
- output
);
4705 for (i
= 0; i
< p
- output
; i
++)
4706 fprintf(stderr
, " %02x", output
[i
]);
4707 fprintf(stderr
, "\n");
4709 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
4710 } else if (tlen
> 0) {
4712 fprintf(stderr
, "sending %d unichars:", tlen
);
4713 for (i
= 0; i
< tlen
; i
++)
4714 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
4715 fprintf(stderr
, "\n");
4717 luni_send(term
->ldisc
, text
, tlen
, 1);
4722 void term_nopaste(Terminal
*term
)
4724 if (term
->paste_len
== 0)
4726 sfree(term
->paste_buffer
);
4727 term
->paste_buffer
= NULL
;
4728 term
->paste_len
= 0;
4731 int term_paste_pending(Terminal
*term
)
4733 return term
->paste_len
!= 0;
4736 void term_paste(Terminal
*term
)
4738 long now
, paste_diff
;
4740 if (term
->paste_len
== 0)
4743 /* Don't wait forever to paste */
4744 if (term
->paste_hold
) {
4745 now
= GETTICKCOUNT();
4746 paste_diff
= now
- term
->last_paste
;
4747 if (paste_diff
>= 0 && paste_diff
< 450)
4750 term
->paste_hold
= 0;
4752 while (term
->paste_pos
< term
->paste_len
) {
4754 while (n
+ term
->paste_pos
< term
->paste_len
) {
4755 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4759 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4760 term
->paste_pos
+= n
;
4762 if (term
->paste_pos
< term
->paste_len
) {
4763 term
->paste_hold
= 1;
4767 sfree(term
->paste_buffer
);
4768 term
->paste_buffer
= NULL
;
4769 term
->paste_len
= 0;
4772 static void deselect(Terminal
*term
)
4774 term
->selstate
= NO_SELECTION
;
4775 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4778 void term_deselect(Terminal
*term
)
4784 int term_ldisc(Terminal
*term
, int option
)
4786 if (option
== LD_ECHO
)
4787 return term
->term_echoing
;
4788 if (option
== LD_EDIT
)
4789 return term
->term_editing
;
4793 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
4797 bufchain_add(&term
->inbuf
, data
, len
);
4799 if (!term
->in_term_out
) {
4800 term
->in_term_out
= TRUE
;
4801 term_blink(term
, 1);
4803 term
->in_term_out
= FALSE
;
4807 * term_out() always completely empties inbuf. Therefore,
4808 * there's no reason at all to return anything other than zero
4809 * from this function, because there _can't_ be a question of
4810 * the remote side needing to wait until term_out() has cleared
4813 * This is a slightly suboptimal way to deal with SSH2 - in
4814 * principle, the window mechanism would allow us to continue
4815 * to accept data on forwarded ports and X connections even
4816 * while the terminal processing was going slowly - but we
4817 * can't do the 100% right thing without moving the terminal
4818 * processing into a separate thread, and that might hurt
4819 * portability. So we manage stdout buffering the old SSH1 way:
4820 * if the terminal processing goes slowly, the whole SSH
4821 * connection stops accepting data until it's ready.
4823 * In practice, I can't imagine this causing serious trouble.
4828 void term_provide_logctx(Terminal
*term
, void *logctx
)
4830 term
->logctx
= logctx
;