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
->selstate
!= NO_SELECTION
) {
854 if (term
->selstart
.y
>= seltop
&&
855 term
->selstart
.y
<= botline
) {
857 if (term
->selstart
.y
< seltop
) {
858 term
->selstart
.y
= seltop
;
859 term
->selstart
.x
= 0;
862 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
864 if (term
->selend
.y
< seltop
) {
865 term
->selend
.y
= seltop
;
869 if (term
->selanchor
.y
>= seltop
&&
870 term
->selanchor
.y
<= botline
) {
872 if (term
->selanchor
.y
< seltop
) {
873 term
->selanchor
.y
= seltop
;
874 term
->selanchor
.x
= 0;
882 #ifdef OPTIMISE_SCROLL
883 shift
+= term
->disptop
- olddisptop
;
884 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
885 scroll_display(term
, topline
, botline
, shift
);
886 #endif /* OPTIMISE_SCROLL */
889 #ifdef OPTIMISE_SCROLL
891 * Add a scroll of a region on the screen into the pending scroll list.
892 * `lines' is +ve for scrolling forward, -ve for backward.
894 * If the scroll is on the same area as the last scroll in the list,
897 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
899 struct scrollregion
*newscroll
;
900 if (term
->scrolltail
&&
901 term
->scrolltail
->topline
== topline
&&
902 term
->scrolltail
->botline
== botline
) {
903 term
->scrolltail
->lines
+= lines
;
905 newscroll
= snew(struct scrollregion
);
906 newscroll
->topline
= topline
;
907 newscroll
->botline
= botline
;
908 newscroll
->lines
= lines
;
909 newscroll
->next
= NULL
;
911 if (!term
->scrollhead
)
912 term
->scrollhead
= newscroll
;
914 term
->scrolltail
->next
= newscroll
;
915 term
->scrolltail
= newscroll
;
920 * Scroll the physical display, and our conception of it in disptext.
922 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
924 unsigned long *start
, *end
;
925 int distance
, size
, i
;
927 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
928 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
929 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
930 size
= end
- start
- distance
;
932 memmove(start
, start
+ distance
, size
* TSIZE
);
933 if (term
->dispcurs
>= start
+ distance
&&
934 term
->dispcurs
<= start
+ distance
+ size
)
935 term
->dispcurs
-= distance
;
936 for (i
= 0; i
< distance
; i
++)
937 (start
+ size
)[i
] |= ATTR_INVALID
;
939 memmove(start
+ distance
, start
, size
* TSIZE
);
940 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
941 term
->dispcurs
+= distance
;
942 for (i
= 0; i
< distance
; i
++)
943 start
[i
] |= ATTR_INVALID
;
945 save_scroll(term
, topline
, botline
, lines
);
947 #endif /* OPTIMISE_SCROLL */
950 * Move the cursor to a given position, clipping at boundaries. We
951 * may or may not want to clip at the scroll margin: marg_clip is 0
952 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
953 * even _being_ outside the margins.
955 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
962 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
965 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
976 term
->wrapnext
= FALSE
;
980 * Save or restore the cursor and SGR mode.
982 static void save_cursor(Terminal
*term
, int save
)
985 term
->savecurs
= term
->curs
;
986 term
->save_attr
= term
->curr_attr
;
987 term
->save_cset
= term
->cset
;
988 term
->save_utf
= term
->utf
;
989 term
->save_wnext
= term
->wrapnext
;
990 term
->save_csattr
= term
->cset_attr
[term
->cset
];
991 term
->save_sco_acs
= term
->sco_acs
;
993 term
->curs
= term
->savecurs
;
994 /* Make sure the window hasn't shrunk since the save */
995 if (term
->curs
.x
>= term
->cols
)
996 term
->curs
.x
= term
->cols
- 1;
997 if (term
->curs
.y
>= term
->rows
)
998 term
->curs
.y
= term
->rows
- 1;
1000 term
->curr_attr
= term
->save_attr
;
1001 term
->cset
= term
->save_cset
;
1002 term
->utf
= term
->save_utf
;
1003 term
->wrapnext
= term
->save_wnext
;
1005 * wrapnext might reset to False if the x position is no
1006 * longer at the rightmost edge.
1008 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
1009 term
->wrapnext
= FALSE
;
1010 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
1011 term
->sco_acs
= term
->save_sco_acs
;
1014 term
->erase_char
= (' ' | ATTR_ASCII
|
1016 (ATTR_FGMASK
| ATTR_BGMASK
)));
1021 * This function is called before doing _anything_ which affects
1022 * only part of a line of text. It is used to mark the boundary
1023 * between two character positions, and it indicates that some sort
1024 * of effect is going to happen on only one side of that boundary.
1026 * The effect of this function is to check whether a CJK
1027 * double-width character is straddling the boundary, and to remove
1028 * it and replace it with two spaces if so. (Of course, one or
1029 * other of those spaces is then likely to be replaced with
1030 * something else again, as a result of whatever happens next.)
1032 * Also, if the boundary is at the right-hand _edge_ of the screen,
1033 * it implies something deliberate is being done to the rightmost
1034 * column position; hence we must clear LATTR_WRAPPED2.
1036 * The input to the function is the coordinates of the _second_
1037 * character of the pair.
1039 static void check_boundary(Terminal
*term
, int x
, int y
)
1041 unsigned long *ldata
;
1043 /* Validate input coordinates, just in case. */
1044 if (x
== 0 || x
> term
->cols
)
1048 if (x
== term
->cols
) {
1049 ldata
[x
] &= ~LATTR_WRAPPED2
;
1051 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
1052 ldata
[x
-1] = ldata
[x
] =
1053 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
1059 * Erase a large portion of the screen: the whole screen, or the
1060 * whole line, or parts thereof.
1062 static void erase_lots(Terminal
*term
,
1063 int line_only
, int from_begin
, int to_end
)
1067 int erasing_lines_from_top
= 0;
1070 start
.y
= term
->curs
.y
;
1072 end
.y
= term
->curs
.y
+ 1;
1074 erase_lattr
= FALSE
;
1089 if (!from_begin
|| !to_end
)
1090 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1091 check_selection(term
, start
, end
);
1093 /* Clear screen also forces a full window redraw, just in case. */
1094 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1095 term_invalidate(term
);
1097 /* Lines scrolled away shouldn't be brought back on if the terminal
1099 if (start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
)
1100 erasing_lines_from_top
= 1;
1102 if (term
->cfg
.erase_to_scrollback
&& erasing_lines_from_top
) {
1103 /* If it's a whole number of lines, starting at the top, and
1104 * we're fully erasing them, erase by scrolling and keep the
1105 * lines in the scrollback. */
1106 int scrolllines
= end
.y
;
1107 if (end
.y
== term
->rows
) {
1108 /* Shrink until we find a non-empty row.*/
1109 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1111 if (scrolllines
> 0)
1112 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1115 unsigned long *ldata
= lineptr(start
.y
);
1116 while (poslt(start
, end
)) {
1117 if (start
.x
== term
->cols
) {
1119 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1121 ldata
[start
.x
] = LATTR_NORM
;
1123 ldata
[start
.x
] = term
->erase_char
;
1125 if (incpos(start
) && start
.y
< term
->rows
)
1126 ldata
= lineptr(start
.y
);
1130 /* After an erase of lines from the top of the screen, we shouldn't
1131 * bring the lines back again if the terminal enlarges (since the user or
1132 * application has explictly thrown them away). */
1133 if (erasing_lines_from_top
&& !(term
->alt_which
))
1134 term
->tempsblines
= 0;
1138 * Insert or delete characters within the current line. n is +ve if
1139 * insertion is desired, and -ve for deletion.
1141 static void insch(Terminal
*term
, int n
)
1143 int dir
= (n
< 0 ?
-1 : +1);
1146 unsigned long *ldata
;
1148 n
= (n
< 0 ?
-n
: n
);
1149 if (n
> term
->cols
- term
->curs
.x
)
1150 n
= term
->cols
- term
->curs
.x
;
1151 m
= term
->cols
- term
->curs
.x
- n
;
1152 cursplus
.y
= term
->curs
.y
;
1153 cursplus
.x
= term
->curs
.x
+ n
;
1154 check_selection(term
, term
->curs
, cursplus
);
1155 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1157 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1158 ldata
= lineptr(term
->curs
.y
);
1160 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1162 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1164 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1166 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1171 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1172 * whether the mode is a DEC private one or a normal one.)
1174 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1176 unsigned long ticks
;
1180 case 1: /* DECCKM: application cursor keys */
1181 term
->app_cursor_keys
= state
;
1183 case 2: /* DECANM: VT52 mode */
1184 term
->vt52_mode
= !state
;
1185 if (term
->vt52_mode
) {
1186 term
->blink_is_real
= FALSE
;
1187 term
->vt52_bold
= FALSE
;
1189 term
->blink_is_real
= term
->cfg
.blinktext
;
1192 case 3: /* DECCOLM: 80/132 columns */
1194 if (!term
->cfg
.no_remote_resize
)
1195 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1196 term
->reset_132
= state
;
1197 term
->alt_t
= term
->marg_t
= 0;
1198 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
1199 move(term
, 0, 0, 0);
1200 erase_lots(term
, FALSE
, TRUE
, TRUE
);
1202 case 5: /* DECSCNM: reverse video */
1204 * Toggle reverse video. If we receive an OFF within the
1205 * visual bell timeout period after an ON, we trigger an
1206 * effective visual bell, so that ESC[?5hESC[?5l will
1207 * always be an actually _visible_ visual bell.
1209 ticks
= GETTICKCOUNT();
1210 /* turn off a previous vbell to avoid inconsistencies */
1211 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1212 term
->in_vbell
= FALSE
;
1213 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1214 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1215 /* If there's no vbell timeout already, or this one lasts
1216 * longer, replace vbell_timeout with ours. */
1217 if (!term
->in_vbell
||
1218 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1220 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1221 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1222 } else if (!term
->rvideo
&& state
) {
1223 /* This is an ON, so we notice the time and save it. */
1224 term
->rvbell_startpoint
= ticks
;
1226 term
->rvideo
= state
;
1227 term
->seen_disp_event
= TRUE
;
1231 case 6: /* DECOM: DEC origin mode */
1232 term
->dec_om
= state
;
1234 case 7: /* DECAWM: auto wrap */
1237 case 8: /* DECARM: auto key repeat */
1238 term
->repeat_off
= !state
;
1240 case 10: /* DECEDM: set local edit mode */
1241 term
->term_editing
= state
;
1242 if (term
->ldisc
) /* cause ldisc to notice changes */
1243 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1245 case 25: /* DECTCEM: enable/disable cursor */
1246 compatibility2(OTHER
, VT220
);
1247 term
->cursor_on
= state
;
1248 term
->seen_disp_event
= TRUE
;
1250 case 47: /* alternate screen */
1251 compatibility(OTHER
);
1253 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1256 case 1000: /* xterm mouse 1 */
1257 term
->xterm_mouse
= state ?
1 : 0;
1258 set_raw_mouse_mode(term
->frontend
, state
);
1260 case 1002: /* xterm mouse 2 */
1261 term
->xterm_mouse
= state ?
2 : 0;
1262 set_raw_mouse_mode(term
->frontend
, state
);
1264 case 1047: /* alternate screen */
1265 compatibility(OTHER
);
1267 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1270 case 1048: /* save/restore cursor */
1271 if (!term
->cfg
.no_alt_screen
)
1272 save_cursor(term
, state
);
1273 if (!state
) term
->seen_disp_event
= TRUE
;
1275 case 1049: /* cursor & alternate screen */
1276 if (state
&& !term
->cfg
.no_alt_screen
)
1277 save_cursor(term
, state
);
1278 if (!state
) term
->seen_disp_event
= TRUE
;
1279 compatibility(OTHER
);
1281 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1282 if (!state
&& !term
->cfg
.no_alt_screen
)
1283 save_cursor(term
, state
);
1288 case 4: /* IRM: set insert mode */
1289 compatibility(VT102
);
1290 term
->insert
= state
;
1292 case 12: /* SRM: set echo mode */
1293 term
->term_echoing
= !state
;
1294 if (term
->ldisc
) /* cause ldisc to notice changes */
1295 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1297 case 20: /* LNM: Return sends ... */
1298 term
->cr_lf_return
= state
;
1300 case 34: /* WYULCURM: Make cursor BIG */
1301 compatibility2(OTHER
, VT220
);
1302 term
->big_cursor
= !state
;
1307 * Process an OSC sequence: set window title or icon name.
1309 static void do_osc(Terminal
*term
)
1312 while (term
->osc_strlen
--)
1313 term
->wordness
[(unsigned char)
1314 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1316 term
->osc_string
[term
->osc_strlen
] = '\0';
1317 switch (term
->esc_args
[0]) {
1320 if (!term
->cfg
.no_remote_wintitle
)
1321 set_icon(term
->frontend
, term
->osc_string
);
1322 if (term
->esc_args
[0] == 1)
1324 /* fall through: parameter 0 means set both */
1327 if (!term
->cfg
.no_remote_wintitle
)
1328 set_title(term
->frontend
, term
->osc_string
);
1335 * ANSI printing routines.
1337 static void term_print_setup(Terminal
*term
)
1339 bufchain_clear(&term
->printer_buf
);
1340 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1342 static void term_print_flush(Terminal
*term
)
1347 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1348 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1351 printer_job_data(term
->print_job
, data
, len
);
1352 bufchain_consume(&term
->printer_buf
, len
);
1355 static void term_print_finish(Terminal
*term
)
1361 if (!term
->printing
&& !term
->only_printing
)
1362 return; /* we need do nothing */
1364 term_print_flush(term
);
1365 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1366 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1368 if (c
== '\033' || c
== '\233') {
1369 bufchain_consume(&term
->printer_buf
, size
);
1372 printer_job_data(term
->print_job
, &c
, 1);
1373 bufchain_consume(&term
->printer_buf
, 1);
1376 printer_finish_job(term
->print_job
);
1377 term
->print_job
= NULL
;
1378 term
->printing
= term
->only_printing
= FALSE
;
1382 * Remove everything currently in `inbuf' and stick it up on the
1383 * in-memory display. There's a big state machine in here to
1384 * process escape sequences...
1386 void term_out(Terminal
*term
)
1389 unsigned char localbuf
[256], *chars
;
1394 chars
= NULL
; /* placate compiler warnings */
1395 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1399 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1400 if (nchars
> sizeof(localbuf
))
1401 nchars
= sizeof(localbuf
);
1402 memcpy(localbuf
, ret
, nchars
);
1403 bufchain_consume(&term
->inbuf
, nchars
);
1405 assert(chars
!= NULL
);
1411 * Optionally log the session traffic to a file. Useful for
1412 * debugging and possibly also useful for actual logging.
1414 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1415 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1421 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1422 * be able to display 8-bit characters, but I'll let that go 'cause
1427 * If we're printing, add the character to the printer
1430 if (term
->printing
) {
1431 bufchain_add(&term
->printer_buf
, &c
, 1);
1434 * If we're in print-only mode, we use a much simpler
1435 * state machine designed only to recognise the ESC[4i
1436 * termination sequence.
1438 if (term
->only_printing
) {
1440 term
->print_state
= 1;
1441 else if (c
== (unsigned char)'\233')
1442 term
->print_state
= 2;
1443 else if (c
== '[' && term
->print_state
== 1)
1444 term
->print_state
= 2;
1445 else if (c
== '4' && term
->print_state
== 2)
1446 term
->print_state
= 3;
1447 else if (c
== 'i' && term
->print_state
== 3)
1448 term
->print_state
= 4;
1450 term
->print_state
= 0;
1451 if (term
->print_state
== 4) {
1452 term_print_finish(term
);
1458 /* First see about all those translations. */
1459 if (term
->termstate
== TOPLEVEL
) {
1461 switch (term
->utf_state
) {
1464 /* UTF-8 must be stateless so we ignore iso2022. */
1465 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1466 c
= term
->ucsdata
->unitab_ctrl
[c
];
1467 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1469 } else if ((c
& 0xe0) == 0xc0) {
1470 term
->utf_size
= term
->utf_state
= 1;
1471 term
->utf_char
= (c
& 0x1f);
1472 } else if ((c
& 0xf0) == 0xe0) {
1473 term
->utf_size
= term
->utf_state
= 2;
1474 term
->utf_char
= (c
& 0x0f);
1475 } else if ((c
& 0xf8) == 0xf0) {
1476 term
->utf_size
= term
->utf_state
= 3;
1477 term
->utf_char
= (c
& 0x07);
1478 } else if ((c
& 0xfc) == 0xf8) {
1479 term
->utf_size
= term
->utf_state
= 4;
1480 term
->utf_char
= (c
& 0x03);
1481 } else if ((c
& 0xfe) == 0xfc) {
1482 term
->utf_size
= term
->utf_state
= 5;
1483 term
->utf_char
= (c
& 0x01);
1494 if ((c
& 0xC0) != 0x80) {
1497 term
->utf_state
= 0;
1500 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1501 if (--term
->utf_state
)
1506 /* Is somebody trying to be evil! */
1508 (c
< 0x800 && term
->utf_size
>= 2) ||
1509 (c
< 0x10000 && term
->utf_size
>= 3) ||
1510 (c
< 0x200000 && term
->utf_size
>= 4) ||
1511 (c
< 0x4000000 && term
->utf_size
>= 5))
1514 /* Unicode line separator and paragraph separator are CR-LF */
1515 if (c
== 0x2028 || c
== 0x2029)
1518 /* High controls are probably a Baaad idea too. */
1522 /* The UTF-16 surrogates are not nice either. */
1523 /* The standard give the option of decoding these:
1524 * I don't want to! */
1525 if (c
>= 0xD800 && c
< 0xE000)
1528 /* ISO 10646 characters now limited to UTF-16 range. */
1532 /* This is currently a TagPhobic application.. */
1533 if (c
>= 0xE0000 && c
<= 0xE007F)
1536 /* U+FEFF is best seen as a null. */
1539 /* But U+FFFE is an error. */
1540 if (c
== 0xFFFE || c
== 0xFFFF)
1543 /* Oops this is a 16bit implementation */
1548 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1549 else if(term
->sco_acs
&&
1550 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1552 if (term
->sco_acs
== 2) c
|= 0x80;
1555 switch (term
->cset_attr
[term
->cset
]) {
1557 * Linedraw characters are different from 'ESC ( B'
1558 * only for a small range. For ones outside that
1559 * range, make sure we use the same font as well as
1560 * the same encoding.
1563 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1564 c
= term
->ucsdata
->unitab_ctrl
[c
];
1566 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1570 /* If UK-ASCII, make the '#' a LineDraw Pound */
1572 c
= '}' | ATTR_LINEDRW
;
1575 /*FALLTHROUGH*/ case ATTR_ASCII
:
1576 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1577 c
= term
->ucsdata
->unitab_ctrl
[c
];
1579 c
= ((unsigned char) c
) | ATTR_ASCII
;
1582 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1588 /* How about C1 controls ? */
1589 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1590 !term
->vt52_mode
&& has_compat(VT220
)) {
1591 term
->termstate
= SEEN_ESC
;
1592 term
->esc_query
= FALSE
;
1593 c
= '@' + (c
& 0x1F);
1596 /* Or the GL control. */
1597 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1598 if (term
->curs
.x
&& !term
->wrapnext
)
1600 term
->wrapnext
= FALSE
;
1602 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1603 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1605 /* Or normal C0 controls. */
1606 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1608 case '\005': /* ENQ: terminal type query */
1609 /* Strictly speaking this is VT100 but a VT100 defaults to
1610 * no response. Other terminals respond at their option.
1612 * Don't put a CR in the default string as this tends to
1613 * upset some weird software.
1615 * An xterm returns "xterm" (5 characters)
1617 compatibility(ANSIMIN
);
1619 char abuf
[256], *s
, *d
;
1621 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1623 if (*s
>= 'a' && *s
<= 'z')
1624 *d
++ = (*s
- ('a' - 1));
1625 else if ((*s
>= '@' && *s
<= '_') ||
1626 *s
== '?' || (*s
& 0x80))
1631 } else if (*s
== '^') {
1636 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1640 case '\007': /* BEL: Bell */
1642 struct beeptime
*newbeep
;
1643 unsigned long ticks
;
1645 ticks
= GETTICKCOUNT();
1647 if (!term
->beep_overloaded
) {
1648 newbeep
= snew(struct beeptime
);
1649 newbeep
->ticks
= ticks
;
1650 newbeep
->next
= NULL
;
1651 if (!term
->beephead
)
1652 term
->beephead
= newbeep
;
1654 term
->beeptail
->next
= newbeep
;
1655 term
->beeptail
= newbeep
;
1660 * Throw out any beeps that happened more than
1663 while (term
->beephead
&&
1664 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1665 struct beeptime
*tmp
= term
->beephead
;
1666 term
->beephead
= tmp
->next
;
1668 if (!term
->beephead
)
1669 term
->beeptail
= NULL
;
1673 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1674 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1676 * If we're currently overloaded and the
1677 * last beep was more than s seconds ago,
1678 * leave overload mode.
1680 term
->beep_overloaded
= FALSE
;
1681 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1682 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1684 * Now, if we have n or more beeps
1685 * remaining in the queue, go into overload
1688 term
->beep_overloaded
= TRUE
;
1690 term
->lastbeep
= ticks
;
1693 * Perform an actual beep if we're not overloaded.
1695 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1696 beep(term
->frontend
, term
->cfg
.beep
);
1697 if (term
->cfg
.beep
== BELL_VISUAL
) {
1698 term
->in_vbell
= TRUE
;
1699 term
->vbell_startpoint
= ticks
;
1703 term
->seen_disp_event
= TRUE
;
1706 case '\b': /* BS: Back space */
1707 if (term
->curs
.x
== 0 &&
1708 (term
->curs
.y
== 0 || term
->wrap
== 0))
1710 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1711 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1712 else if (term
->wrapnext
)
1713 term
->wrapnext
= FALSE
;
1717 term
->seen_disp_event
= TRUE
;
1719 case '\016': /* LS1: Locking-shift one */
1720 compatibility(VT100
);
1723 case '\017': /* LS0: Locking-shift zero */
1724 compatibility(VT100
);
1727 case '\033': /* ESC: Escape */
1728 if (term
->vt52_mode
)
1729 term
->termstate
= VT52_ESC
;
1731 compatibility(ANSIMIN
);
1732 term
->termstate
= SEEN_ESC
;
1733 term
->esc_query
= FALSE
;
1736 case '\015': /* CR: Carriage return */
1738 term
->wrapnext
= FALSE
;
1740 term
->seen_disp_event
= TRUE
;
1741 term
->paste_hold
= 0;
1743 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1745 case '\014': /* FF: Form feed */
1746 if (has_compat(SCOANSI
)) {
1747 move(term
, 0, 0, 0);
1748 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1750 term
->wrapnext
= FALSE
;
1751 term
->seen_disp_event
= 1;
1754 case '\013': /* VT: Line tabulation */
1755 compatibility(VT100
);
1756 case '\012': /* LF: Line feed */
1757 if (term
->curs
.y
== term
->marg_b
)
1758 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1759 else if (term
->curs
.y
< term
->rows
- 1)
1761 if (term
->cfg
.lfhascr
)
1764 term
->wrapnext
= FALSE
;
1765 term
->seen_disp_event
= 1;
1766 term
->paste_hold
= 0;
1768 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1770 case '\t': /* HT: Character tabulation */
1772 pos old_curs
= term
->curs
;
1773 unsigned long *ldata
= lineptr(term
->curs
.y
);
1777 } while (term
->curs
.x
< term
->cols
- 1 &&
1778 !term
->tabs
[term
->curs
.x
]);
1780 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1781 if (term
->curs
.x
>= term
->cols
/ 2)
1782 term
->curs
.x
= term
->cols
/ 2 - 1;
1784 if (term
->curs
.x
>= term
->cols
)
1785 term
->curs
.x
= term
->cols
- 1;
1789 check_selection(term
, old_curs
, term
->curs
);
1791 term
->seen_disp_event
= TRUE
;
1795 switch (term
->termstate
) {
1797 /* Only graphic characters get this far;
1798 * ctrls are stripped above */
1799 if (term
->wrapnext
&& term
->wrap
) {
1800 term
->cpos
[1] |= LATTR_WRAPPED
;
1801 if (term
->curs
.y
== term
->marg_b
)
1802 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1803 else if (term
->curs
.y
< term
->rows
- 1)
1807 term
->wrapnext
= FALSE
;
1811 if (term
->selstate
!= NO_SELECTION
) {
1812 pos cursplus
= term
->curs
;
1814 check_selection(term
, term
->curs
, cursplus
);
1816 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1818 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1824 width
= wcwidth((wchar_t) c
);
1828 * If we're about to display a double-width
1829 * character starting in the rightmost
1830 * column, then we do something special
1831 * instead. We must print a space in the
1832 * last column of the screen, then wrap;
1833 * and we also set LATTR_WRAPPED2 which
1834 * instructs subsequent cut-and-pasting not
1835 * only to splice this line to the one
1836 * after it, but to ignore the space in the
1837 * last character position as well.
1838 * (Because what was actually output to the
1839 * terminal was presumably just a sequence
1840 * of CJK characters, and we don't want a
1841 * space to be pasted in the middle of
1842 * those just because they had the
1843 * misfortune to start in the wrong parity
1844 * column. xterm concurs.)
1846 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1847 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1848 if (term
->curs
.x
== term
->cols
-1) {
1849 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1850 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1851 if (term
->curs
.y
== term
->marg_b
)
1852 scroll(term
, term
->marg_t
, term
->marg_b
,
1854 else if (term
->curs
.y
< term
->rows
- 1)
1858 /* Now we must check_boundary again, of course. */
1859 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1860 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1862 *term
->cpos
++ = c
| term
->curr_attr
;
1863 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1867 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1868 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1869 *term
->cpos
++ = c
| term
->curr_attr
;
1876 if (term
->curs
.x
== term
->cols
) {
1879 term
->wrapnext
= TRUE
;
1880 if (term
->wrap
&& term
->vt52_mode
) {
1881 term
->cpos
[1] |= LATTR_WRAPPED
;
1882 if (term
->curs
.y
== term
->marg_b
)
1883 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1884 else if (term
->curs
.y
< term
->rows
- 1)
1888 term
->wrapnext
= FALSE
;
1891 term
->seen_disp_event
= 1;
1896 * This state is virtually identical to SEEN_ESC, with the
1897 * exception that we have an OSC sequence in the pipeline,
1898 * and _if_ we see a backslash, we process it.
1902 term
->termstate
= TOPLEVEL
;
1905 /* else fall through */
1907 if (c
>= ' ' && c
<= '/') {
1908 if (term
->esc_query
)
1909 term
->esc_query
= -1;
1911 term
->esc_query
= c
;
1914 term
->termstate
= TOPLEVEL
;
1915 switch (ANSI(c
, term
->esc_query
)) {
1916 case '[': /* enter CSI mode */
1917 term
->termstate
= SEEN_CSI
;
1918 term
->esc_nargs
= 1;
1919 term
->esc_args
[0] = ARG_DEFAULT
;
1920 term
->esc_query
= FALSE
;
1922 case ']': /* OSC: xterm escape sequences */
1923 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1924 compatibility(OTHER
);
1925 term
->termstate
= SEEN_OSC
;
1926 term
->esc_args
[0] = 0;
1928 case '7': /* DECSC: save cursor */
1929 compatibility(VT100
);
1930 save_cursor(term
, TRUE
);
1932 case '8': /* DECRC: restore cursor */
1933 compatibility(VT100
);
1934 save_cursor(term
, FALSE
);
1935 term
->seen_disp_event
= TRUE
;
1937 case '=': /* DECKPAM: Keypad application mode */
1938 compatibility(VT100
);
1939 term
->app_keypad_keys
= TRUE
;
1941 case '>': /* DECKPNM: Keypad numeric mode */
1942 compatibility(VT100
);
1943 term
->app_keypad_keys
= FALSE
;
1945 case 'D': /* IND: exactly equivalent to LF */
1946 compatibility(VT100
);
1947 if (term
->curs
.y
== term
->marg_b
)
1948 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1949 else if (term
->curs
.y
< term
->rows
- 1)
1952 term
->wrapnext
= FALSE
;
1953 term
->seen_disp_event
= TRUE
;
1955 case 'E': /* NEL: exactly equivalent to CR-LF */
1956 compatibility(VT100
);
1958 if (term
->curs
.y
== term
->marg_b
)
1959 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1960 else if (term
->curs
.y
< term
->rows
- 1)
1963 term
->wrapnext
= FALSE
;
1964 term
->seen_disp_event
= TRUE
;
1966 case 'M': /* RI: reverse index - backwards LF */
1967 compatibility(VT100
);
1968 if (term
->curs
.y
== term
->marg_t
)
1969 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1970 else if (term
->curs
.y
> 0)
1973 term
->wrapnext
= FALSE
;
1974 term
->seen_disp_event
= TRUE
;
1976 case 'Z': /* DECID: terminal type query */
1977 compatibility(VT100
);
1979 ldisc_send(term
->ldisc
, term
->id_string
,
1980 strlen(term
->id_string
), 0);
1982 case 'c': /* RIS: restore power-on settings */
1983 compatibility(VT100
);
1985 if (term
->ldisc
) /* cause ldisc to notice changes */
1986 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1987 if (term
->reset_132
) {
1988 if (!term
->cfg
.no_remote_resize
)
1989 request_resize(term
->frontend
, 80, term
->rows
);
1990 term
->reset_132
= 0;
1994 term
->seen_disp_event
= TRUE
;
1996 case 'H': /* HTS: set a tab */
1997 compatibility(VT100
);
1998 term
->tabs
[term
->curs
.x
] = TRUE
;
2001 case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
2002 compatibility(VT100
);
2004 unsigned long *ldata
;
2008 for (i
= 0; i
< term
->rows
; i
++) {
2010 for (j
= 0; j
< term
->cols
; j
++)
2011 ldata
[j
] = ATTR_DEFAULT
| 'E';
2012 ldata
[term
->cols
] = 0;
2015 term
->seen_disp_event
= TRUE
;
2016 scrtop
.x
= scrtop
.y
= 0;
2018 scrbot
.y
= term
->rows
;
2019 check_selection(term
, scrtop
, scrbot
);
2023 case ANSI('3', '#'):
2024 case ANSI('4', '#'):
2025 case ANSI('5', '#'):
2026 case ANSI('6', '#'):
2027 compatibility(VT100
);
2029 unsigned long nlattr
;
2030 unsigned long *ldata
;
2031 switch (ANSI(c
, term
->esc_query
)) {
2032 case ANSI('3', '#'): /* DECDHL: 2*height, top */
2035 case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
2038 case ANSI('5', '#'): /* DECSWL: normal */
2039 nlattr
= LATTR_NORM
;
2041 default: /* case ANSI('6', '#'): DECDWL: 2*width */
2042 nlattr
= LATTR_WIDE
;
2045 ldata
= lineptr(term
->curs
.y
);
2046 ldata
[term
->cols
] &= ~LATTR_MODE
;
2047 ldata
[term
->cols
] |= nlattr
;
2050 /* GZD4: G0 designate 94-set */
2051 case ANSI('A', '('):
2052 compatibility(VT100
);
2053 if (!term
->cfg
.no_remote_charset
)
2054 term
->cset_attr
[0] = ATTR_GBCHR
;
2056 case ANSI('B', '('):
2057 compatibility(VT100
);
2058 if (!term
->cfg
.no_remote_charset
)
2059 term
->cset_attr
[0] = ATTR_ASCII
;
2061 case ANSI('0', '('):
2062 compatibility(VT100
);
2063 if (!term
->cfg
.no_remote_charset
)
2064 term
->cset_attr
[0] = ATTR_LINEDRW
;
2066 case ANSI('U', '('):
2067 compatibility(OTHER
);
2068 if (!term
->cfg
.no_remote_charset
)
2069 term
->cset_attr
[0] = ATTR_SCOACS
;
2071 /* G1D4: G1-designate 94-set */
2072 case ANSI('A', ')'):
2073 compatibility(VT100
);
2074 if (!term
->cfg
.no_remote_charset
)
2075 term
->cset_attr
[1] = ATTR_GBCHR
;
2077 case ANSI('B', ')'):
2078 compatibility(VT100
);
2079 if (!term
->cfg
.no_remote_charset
)
2080 term
->cset_attr
[1] = ATTR_ASCII
;
2082 case ANSI('0', ')'):
2083 compatibility(VT100
);
2084 if (!term
->cfg
.no_remote_charset
)
2085 term
->cset_attr
[1] = ATTR_LINEDRW
;
2087 case ANSI('U', ')'):
2088 compatibility(OTHER
);
2089 if (!term
->cfg
.no_remote_charset
)
2090 term
->cset_attr
[1] = ATTR_SCOACS
;
2092 /* DOCS: Designate other coding system */
2093 case ANSI('8', '%'): /* Old Linux code */
2094 case ANSI('G', '%'):
2095 compatibility(OTHER
);
2096 if (!term
->cfg
.no_remote_charset
)
2099 case ANSI('@', '%'):
2100 compatibility(OTHER
);
2101 if (!term
->cfg
.no_remote_charset
)
2107 term
->termstate
= TOPLEVEL
; /* default */
2109 if (term
->esc_nargs
<= ARGS_MAX
) {
2110 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
2111 term
->esc_args
[term
->esc_nargs
- 1] = 0;
2112 term
->esc_args
[term
->esc_nargs
- 1] =
2113 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
2115 term
->termstate
= SEEN_CSI
;
2116 } else if (c
== ';') {
2117 if (++term
->esc_nargs
<= ARGS_MAX
)
2118 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
2119 term
->termstate
= SEEN_CSI
;
2120 } else if (c
< '@') {
2121 if (term
->esc_query
)
2122 term
->esc_query
= -1;
2124 term
->esc_query
= TRUE
;
2126 term
->esc_query
= c
;
2127 term
->termstate
= SEEN_CSI
;
2129 switch (ANSI(c
, term
->esc_query
)) {
2130 case 'A': /* CUU: move up N lines */
2131 move(term
, term
->curs
.x
,
2132 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2133 term
->seen_disp_event
= TRUE
;
2135 case 'e': /* VPR: move down N lines */
2136 compatibility(ANSI
);
2138 case 'B': /* CUD: Cursor down */
2139 move(term
, term
->curs
.x
,
2140 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2141 term
->seen_disp_event
= TRUE
;
2143 case ANSI('c', '>'): /* DA: report xterm version */
2144 compatibility(OTHER
);
2145 /* this reports xterm version 136 so that VIM can
2146 use the drag messages from the mouse reporting */
2148 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
2150 case 'a': /* HPR: move right N cols */
2151 compatibility(ANSI
);
2153 case 'C': /* CUF: Cursor right */
2154 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
2156 term
->seen_disp_event
= TRUE
;
2158 case 'D': /* CUB: move left N cols */
2159 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2161 term
->seen_disp_event
= TRUE
;
2163 case 'E': /* CNL: move down N lines and CR */
2164 compatibility(ANSI
);
2166 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2167 term
->seen_disp_event
= TRUE
;
2169 case 'F': /* CPL: move up N lines and CR */
2170 compatibility(ANSI
);
2172 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2173 term
->seen_disp_event
= TRUE
;
2176 case '`': /* HPA: set horizontal posn */
2177 compatibility(ANSI
);
2178 move(term
, def(term
->esc_args
[0], 1) - 1,
2180 term
->seen_disp_event
= TRUE
;
2182 case 'd': /* VPA: set vertical posn */
2183 compatibility(ANSI
);
2184 move(term
, term
->curs
.x
,
2185 ((term
->dec_om ? term
->marg_t
: 0) +
2186 def(term
->esc_args
[0], 1) - 1),
2187 (term
->dec_om ?
2 : 0));
2188 term
->seen_disp_event
= TRUE
;
2191 case 'f': /* HVP: set horz and vert posns at once */
2192 if (term
->esc_nargs
< 2)
2193 term
->esc_args
[1] = ARG_DEFAULT
;
2194 move(term
, def(term
->esc_args
[1], 1) - 1,
2195 ((term
->dec_om ? term
->marg_t
: 0) +
2196 def(term
->esc_args
[0], 1) - 1),
2197 (term
->dec_om ?
2 : 0));
2198 term
->seen_disp_event
= TRUE
;
2200 case 'J': /* ED: erase screen or parts of it */
2202 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2205 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2208 term
->seen_disp_event
= TRUE
;
2210 case 'K': /* EL: erase line or parts of it */
2212 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2215 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2217 term
->seen_disp_event
= TRUE
;
2219 case 'L': /* IL: insert lines */
2220 compatibility(VT102
);
2221 if (term
->curs
.y
<= term
->marg_b
)
2222 scroll(term
, term
->curs
.y
, term
->marg_b
,
2223 -def(term
->esc_args
[0], 1), FALSE
);
2225 term
->seen_disp_event
= TRUE
;
2227 case 'M': /* DL: delete lines */
2228 compatibility(VT102
);
2229 if (term
->curs
.y
<= term
->marg_b
)
2230 scroll(term
, term
->curs
.y
, term
->marg_b
,
2231 def(term
->esc_args
[0], 1),
2234 term
->seen_disp_event
= TRUE
;
2236 case '@': /* ICH: insert chars */
2237 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2238 compatibility(VT102
);
2239 insch(term
, def(term
->esc_args
[0], 1));
2240 term
->seen_disp_event
= TRUE
;
2242 case 'P': /* DCH: delete chars */
2243 compatibility(VT102
);
2244 insch(term
, -def(term
->esc_args
[0], 1));
2245 term
->seen_disp_event
= TRUE
;
2247 case 'c': /* DA: terminal type query */
2248 compatibility(VT100
);
2249 /* This is the response for a VT102 */
2251 ldisc_send(term
->ldisc
, term
->id_string
,
2252 strlen(term
->id_string
), 0);
2254 case 'n': /* DSR: cursor position query */
2256 if (term
->esc_args
[0] == 6) {
2258 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2260 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2261 } else if (term
->esc_args
[0] == 5) {
2262 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2266 case 'h': /* SM: toggle modes to high */
2268 compatibility(VT100
);
2271 for (i
= 0; i
< term
->esc_nargs
; i
++)
2272 toggle_mode(term
, term
->esc_args
[i
],
2273 term
->esc_query
, TRUE
);
2276 case 'i': /* MC: Media copy */
2278 compatibility(VT100
);
2280 if (term
->esc_nargs
!= 1) break;
2281 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2282 term
->printing
= TRUE
;
2283 term
->only_printing
= !term
->esc_query
;
2284 term
->print_state
= 0;
2285 term_print_setup(term
);
2286 } else if (term
->esc_args
[0] == 4 &&
2288 term_print_finish(term
);
2292 case 'l': /* RM: toggle modes to low */
2294 compatibility(VT100
);
2297 for (i
= 0; i
< term
->esc_nargs
; i
++)
2298 toggle_mode(term
, term
->esc_args
[i
],
2299 term
->esc_query
, FALSE
);
2302 case 'g': /* TBC: clear tabs */
2303 compatibility(VT100
);
2304 if (term
->esc_nargs
== 1) {
2305 if (term
->esc_args
[0] == 0) {
2306 term
->tabs
[term
->curs
.x
] = FALSE
;
2307 } else if (term
->esc_args
[0] == 3) {
2309 for (i
= 0; i
< term
->cols
; i
++)
2310 term
->tabs
[i
] = FALSE
;
2314 case 'r': /* DECSTBM: set scroll margins */
2315 compatibility(VT100
);
2316 if (term
->esc_nargs
<= 2) {
2318 top
= def(term
->esc_args
[0], 1) - 1;
2319 bot
= (term
->esc_nargs
<= 1
2320 || term
->esc_args
[1] == 0 ?
2322 def(term
->esc_args
[1], term
->rows
)) - 1;
2323 if (bot
>= term
->rows
)
2324 bot
= term
->rows
- 1;
2325 /* VTTEST Bug 9 - if region is less than 2 lines
2326 * don't change region.
2328 if (bot
- top
> 0) {
2333 * I used to think the cursor should be
2334 * placed at the top of the newly marginned
2335 * area. Apparently not: VMS TPU falls over
2338 * Well actually it should for
2341 term
->curs
.y
= (term
->dec_om ?
2344 term
->seen_disp_event
= TRUE
;
2348 case 'm': /* SGR: set graphics rendition */
2351 * A VT100 without the AVO only had one
2352 * attribute, either underline or
2353 * reverse video depending on the
2354 * cursor type, this was selected by
2358 * This is sometimes DIM, eg on the
2361 * This is sometimes INVIS various ANSI.
2363 * This like 22 disables BOLD, DIM and INVIS
2365 * The ANSI colours appear on any
2366 * terminal that has colour (obviously)
2367 * but the interaction between sgr0 and
2368 * the colours varies but is usually
2369 * related to the background colour
2370 * erase item. The interaction between
2371 * colour attributes and the mono ones
2372 * is also very implementation
2375 * The 39 and 49 attributes are likely
2376 * to be unimplemented.
2379 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2380 switch (def(term
->esc_args
[i
], 0)) {
2381 case 0: /* restore defaults */
2382 term
->curr_attr
= term
->default_attr
;
2384 case 1: /* enable bold */
2385 compatibility(VT100AVO
);
2386 term
->curr_attr
|= ATTR_BOLD
;
2388 case 21: /* (enable double underline) */
2389 compatibility(OTHER
);
2390 case 4: /* enable underline */
2391 compatibility(VT100AVO
);
2392 term
->curr_attr
|= ATTR_UNDER
;
2394 case 5: /* enable blink */
2395 compatibility(VT100AVO
);
2396 term
->curr_attr
|= ATTR_BLINK
;
2398 case 6: /* SCO light bkgrd */
2399 compatibility(SCOANSI
);
2400 term
->blink_is_real
= FALSE
;
2401 term
->curr_attr
|= ATTR_BLINK
;
2403 case 7: /* enable reverse video */
2404 term
->curr_attr
|= ATTR_REVERSE
;
2406 case 10: /* SCO acs off */
2407 compatibility(SCOANSI
);
2408 if (term
->cfg
.no_remote_charset
) break;
2409 term
->sco_acs
= 0; break;
2410 case 11: /* SCO acs on */
2411 compatibility(SCOANSI
);
2412 if (term
->cfg
.no_remote_charset
) break;
2413 term
->sco_acs
= 1; break;
2414 case 12: /* SCO acs on, |0x80 */
2415 compatibility(SCOANSI
);
2416 if (term
->cfg
.no_remote_charset
) break;
2417 term
->sco_acs
= 2; break;
2418 case 22: /* disable bold */
2419 compatibility2(OTHER
, VT220
);
2420 term
->curr_attr
&= ~ATTR_BOLD
;
2422 case 24: /* disable underline */
2423 compatibility2(OTHER
, VT220
);
2424 term
->curr_attr
&= ~ATTR_UNDER
;
2426 case 25: /* disable blink */
2427 compatibility2(OTHER
, VT220
);
2428 term
->curr_attr
&= ~ATTR_BLINK
;
2430 case 27: /* disable reverse video */
2431 compatibility2(OTHER
, VT220
);
2432 term
->curr_attr
&= ~ATTR_REVERSE
;
2443 term
->curr_attr
&= ~ATTR_FGMASK
;
2445 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2455 /* xterm-style bright foreground */
2456 term
->curr_attr
&= ~ATTR_FGMASK
;
2458 ((term
->esc_args
[i
] - 90 + 16)
2461 case 39: /* default-foreground */
2462 term
->curr_attr
&= ~ATTR_FGMASK
;
2463 term
->curr_attr
|= ATTR_DEFFG
;
2474 term
->curr_attr
&= ~ATTR_BGMASK
;
2476 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2486 /* xterm-style bright background */
2487 term
->curr_attr
&= ~ATTR_BGMASK
;
2489 ((term
->esc_args
[i
] - 100 + 16)
2492 case 49: /* default-background */
2493 term
->curr_attr
&= ~ATTR_BGMASK
;
2494 term
->curr_attr
|= ATTR_DEFBG
;
2499 term
->erase_char
= (' ' | ATTR_ASCII
|
2505 case 's': /* save cursor */
2506 save_cursor(term
, TRUE
);
2508 case 'u': /* restore cursor */
2509 save_cursor(term
, FALSE
);
2510 term
->seen_disp_event
= TRUE
;
2512 case 't': /* DECSLPP: set page size - ie window height */
2514 * VT340/VT420 sequence DECSLPP, DEC only allows values
2515 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2516 * illegal values (eg first arg 1..9) for window changing
2519 if (term
->esc_nargs
<= 1
2520 && (term
->esc_args
[0] < 1 ||
2521 term
->esc_args
[0] >= 24)) {
2522 compatibility(VT340TEXT
);
2523 if (!term
->cfg
.no_remote_resize
)
2524 request_resize(term
->frontend
, term
->cols
,
2525 def(term
->esc_args
[0], 24));
2527 } else if (term
->esc_nargs
>= 1 &&
2528 term
->esc_args
[0] >= 1 &&
2529 term
->esc_args
[0] < 24) {
2530 compatibility(OTHER
);
2532 switch (term
->esc_args
[0]) {
2536 set_iconic(term
->frontend
, FALSE
);
2539 set_iconic(term
->frontend
, TRUE
);
2542 if (term
->esc_nargs
>= 3) {
2543 if (!term
->cfg
.no_remote_resize
)
2544 move_window(term
->frontend
,
2545 def(term
->esc_args
[1], 0),
2546 def(term
->esc_args
[2], 0));
2550 /* We should resize the window to a given
2551 * size in pixels here, but currently our
2552 * resizing code isn't healthy enough to
2557 set_zorder(term
->frontend
, TRUE
);
2560 /* move to bottom */
2561 set_zorder(term
->frontend
, FALSE
);
2564 refresh_window(term
->frontend
);
2567 if (term
->esc_nargs
>= 3) {
2568 if (!term
->cfg
.no_remote_resize
)
2569 request_resize(term
->frontend
,
2570 def(term
->esc_args
[2], term
->cfg
.width
),
2571 def(term
->esc_args
[1], term
->cfg
.height
));
2575 if (term
->esc_nargs
>= 2)
2576 set_zoomed(term
->frontend
,
2582 ldisc_send(term
->ldisc
,
2583 is_iconic(term
->frontend
) ?
2584 "\033[1t" : "\033[2t", 4, 0);
2588 get_window_pos(term
->frontend
, &x
, &y
);
2589 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2590 ldisc_send(term
->ldisc
, buf
, len
, 0);
2595 get_window_pixels(term
->frontend
, &x
, &y
);
2596 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2597 ldisc_send(term
->ldisc
, buf
, len
, 0);
2602 len
= sprintf(buf
, "\033[8;%d;%dt",
2603 term
->rows
, term
->cols
);
2604 ldisc_send(term
->ldisc
, buf
, len
, 0);
2609 * Hmmm. Strictly speaking we
2610 * should return `the size of the
2611 * screen in characters', but
2612 * that's not easy: (a) window
2613 * furniture being what it is it's
2614 * hard to compute, and (b) in
2615 * resize-font mode maximising the
2616 * window wouldn't change the
2617 * number of characters. *shrug*. I
2618 * think we'll ignore it for the
2619 * moment and see if anyone
2620 * complains, and then ask them
2621 * what they would like it to do.
2626 !term
->cfg
.no_remote_qtitle
) {
2627 p
= get_window_title(term
->frontend
, TRUE
);
2629 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2630 ldisc_send(term
->ldisc
, p
, len
, 0);
2631 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2636 !term
->cfg
.no_remote_qtitle
) {
2637 p
= get_window_title(term
->frontend
,FALSE
);
2639 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2640 ldisc_send(term
->ldisc
, p
, len
, 0);
2641 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2647 case 'S': /* SU: Scroll up */
2648 compatibility(SCOANSI
);
2649 scroll(term
, term
->marg_t
, term
->marg_b
,
2650 def(term
->esc_args
[0], 1), TRUE
);
2652 term
->wrapnext
= FALSE
;
2653 term
->seen_disp_event
= TRUE
;
2655 case 'T': /* SD: Scroll down */
2656 compatibility(SCOANSI
);
2657 scroll(term
, term
->marg_t
, term
->marg_b
,
2658 -def(term
->esc_args
[0], 1), TRUE
);
2660 term
->wrapnext
= FALSE
;
2661 term
->seen_disp_event
= TRUE
;
2663 case ANSI('|', '*'): /* DECSNLS */
2665 * Set number of lines on screen
2666 * VT420 uses VGA like hardware and can
2667 * support any size in reasonable range
2668 * (24..49 AIUI) with no default specified.
2670 compatibility(VT420
);
2671 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2672 if (!term
->cfg
.no_remote_resize
)
2673 request_resize(term
->frontend
, term
->cols
,
2674 def(term
->esc_args
[0],
2679 case ANSI('|', '$'): /* DECSCPP */
2681 * Set number of columns per page
2682 * Docs imply range is only 80 or 132, but
2685 compatibility(VT340TEXT
);
2686 if (term
->esc_nargs
<= 1) {
2687 if (!term
->cfg
.no_remote_resize
)
2688 request_resize(term
->frontend
,
2689 def(term
->esc_args
[0],
2690 term
->cfg
.width
), term
->rows
);
2694 case 'X': /* ECH: write N spaces w/o moving cursor */
2695 /* XXX VTTEST says this is vt220, vt510 manual
2697 compatibility(ANSIMIN
);
2699 int n
= def(term
->esc_args
[0], 1);
2701 unsigned long *p
= term
->cpos
;
2702 if (n
> term
->cols
- term
->curs
.x
)
2703 n
= term
->cols
- term
->curs
.x
;
2704 cursplus
= term
->curs
;
2706 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2707 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2708 check_selection(term
, term
->curs
, cursplus
);
2710 *p
++ = term
->erase_char
;
2711 term
->seen_disp_event
= TRUE
;
2714 case 'x': /* DECREQTPARM: report terminal characteristics */
2715 compatibility(VT100
);
2718 int i
= def(term
->esc_args
[0], 0);
2719 if (i
== 0 || i
== 1) {
2720 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2722 ldisc_send(term
->ldisc
, buf
, 20, 0);
2726 case 'Z': /* CBT: BackTab for xterm */
2727 compatibility(OTHER
);
2729 int i
= def(term
->esc_args
[0], 1);
2730 pos old_curs
= term
->curs
;
2732 for(;i
>0 && term
->curs
.x
>0; i
--) {
2735 } while (term
->curs
.x
>0 &&
2736 !term
->tabs
[term
->curs
.x
]);
2739 check_selection(term
, old_curs
, term
->curs
);
2742 case ANSI('c', '='): /* Hide or Show Cursor */
2743 compatibility(SCOANSI
);
2744 switch(term
->esc_args
[0]) {
2745 case 0: /* hide cursor */
2746 term
->cursor_on
= FALSE
;
2748 case 1: /* restore cursor */
2749 term
->big_cursor
= FALSE
;
2750 term
->cursor_on
= TRUE
;
2752 case 2: /* block cursor */
2753 term
->big_cursor
= TRUE
;
2754 term
->cursor_on
= TRUE
;
2758 case ANSI('C', '='):
2760 * set cursor start on scanline esc_args[0] and
2761 * end on scanline esc_args[1].If you set
2762 * the bottom scan line to a value less than
2763 * the top scan line, the cursor will disappear.
2765 compatibility(SCOANSI
);
2766 if (term
->esc_nargs
>= 2) {
2767 if (term
->esc_args
[0] > term
->esc_args
[1])
2768 term
->cursor_on
= FALSE
;
2770 term
->cursor_on
= TRUE
;
2773 case ANSI('D', '='):
2774 compatibility(SCOANSI
);
2775 term
->blink_is_real
= FALSE
;
2776 if (term
->esc_args
[0]>=1)
2777 term
->curr_attr
|= ATTR_BLINK
;
2779 term
->curr_attr
&= ~ATTR_BLINK
;
2781 case ANSI('E', '='):
2782 compatibility(SCOANSI
);
2783 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2785 case ANSI('F', '='): /* set normal foreground */
2786 compatibility(SCOANSI
);
2787 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
2789 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
2790 ((term
->esc_args
[0] & 0x8) << 1)) <<
2792 term
->curr_attr
&= ~ATTR_FGMASK
;
2793 term
->curr_attr
|= colour
;
2794 term
->default_attr
&= ~ATTR_FGMASK
;
2795 term
->default_attr
|= colour
;
2798 case ANSI('G', '='): /* set normal background */
2799 compatibility(SCOANSI
);
2800 if (term
->esc_args
[0] >= 0 && term
->esc_args
[0] < 16) {
2802 (sco2ansicolour
[term
->esc_args
[0] & 0x7] |
2803 ((term
->esc_args
[0] & 0x8) << 1)) <<
2805 term
->curr_attr
&= ~ATTR_BGMASK
;
2806 term
->curr_attr
|= colour
;
2807 term
->default_attr
&= ~ATTR_BGMASK
;
2808 term
->default_attr
|= colour
;
2811 case ANSI('L', '='):
2812 compatibility(SCOANSI
);
2813 term
->use_bce
= (term
->esc_args
[0] <= 0);
2814 term
->erase_char
= ERASE_CHAR
;
2816 term
->erase_char
= (' ' | ATTR_ASCII
|
2818 (ATTR_FGMASK
| ATTR_BGMASK
)));
2820 case ANSI('p', '"'): /* DECSCL: set compat level */
2822 * Allow the host to make this emulator a
2823 * 'perfect' VT102. This first appeared in
2824 * the VT220, but we do need to get back to
2825 * PuTTY mode so I won't check it.
2827 * The arg in 40..42,50 are a PuTTY extension.
2828 * The 2nd arg, 8bit vs 7bit is not checked.
2830 * Setting VT102 mode should also change
2831 * the Fkeys to generate PF* codes as a
2832 * real VT102 has no Fkeys. The VT220 does
2833 * this, F11..F13 become ESC,BS,LF other
2834 * Fkeys send nothing.
2836 * Note ESC c will NOT change this!
2839 switch (term
->esc_args
[0]) {
2841 term
->compatibility_level
&= ~TM_VTXXX
;
2842 term
->compatibility_level
|= TM_VT102
;
2845 term
->compatibility_level
&= ~TM_VTXXX
;
2846 term
->compatibility_level
|= TM_VT220
;
2850 if (term
->esc_args
[0] > 60 &&
2851 term
->esc_args
[0] < 70)
2852 term
->compatibility_level
|= TM_VTXXX
;
2856 term
->compatibility_level
&= TM_VTXXX
;
2859 term
->compatibility_level
= TM_PUTTY
;
2862 term
->compatibility_level
= TM_SCOANSI
;
2866 term
->compatibility_level
= TM_PUTTY
;
2872 /* Change the response to CSI c */
2873 if (term
->esc_args
[0] == 50) {
2876 strcpy(term
->id_string
, "\033[?");
2877 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2879 strcat(term
->id_string
, ";");
2880 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2881 strcat(term
->id_string
, lbuf
);
2883 strcat(term
->id_string
, "c");
2886 /* Is this a good idea ?
2887 * Well we should do a soft reset at this point ...
2889 if (!has_compat(VT420
) && has_compat(VT100
)) {
2890 if (!term
->cfg
.no_remote_resize
) {
2891 if (term
->reset_132
)
2892 request_resize(132, 24);
2894 request_resize(80, 24);
2902 term
->osc_w
= FALSE
;
2904 case 'P': /* Linux palette sequence */
2905 term
->termstate
= SEEN_OSC_P
;
2906 term
->osc_strlen
= 0;
2908 case 'R': /* Linux palette reset */
2909 palette_reset(term
->frontend
);
2910 term_invalidate(term
);
2911 term
->termstate
= TOPLEVEL
;
2913 case 'W': /* word-set */
2914 term
->termstate
= SEEN_OSC_W
;
2927 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2931 * Grotty hack to support xterm and DECterm title
2932 * sequences concurrently.
2934 if (term
->esc_args
[0] == 2) {
2935 term
->esc_args
[0] = 1;
2938 /* else fall through */
2940 term
->termstate
= OSC_STRING
;
2941 term
->osc_strlen
= 0;
2946 * This OSC stuff is EVIL. It takes just one character to get into
2947 * sysline mode and it's not initially obvious how to get out.
2948 * So I've added CR and LF as string aborts.
2949 * This shouldn't effect compatibility as I believe embedded
2950 * control characters are supposed to be interpreted (maybe?)
2951 * and they don't display anything useful anyway.
2955 if (c
== '\012' || c
== '\015') {
2956 term
->termstate
= TOPLEVEL
;
2957 } else if (c
== 0234 || c
== '\007') {
2959 * These characters terminate the string; ST and BEL
2960 * terminate the sequence and trigger instant
2961 * processing of it, whereas ESC goes back to SEEN_ESC
2962 * mode unless it is followed by \, in which case it is
2963 * synonymous with ST in the first place.
2966 term
->termstate
= TOPLEVEL
;
2967 } else if (c
== '\033')
2968 term
->termstate
= OSC_MAYBE_ST
;
2969 else if (term
->osc_strlen
< OSC_STR_MAX
)
2970 term
->osc_string
[term
->osc_strlen
++] = c
;
2974 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2976 if (c
>= '0' && c
<= '9')
2978 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2980 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2983 term
->termstate
= TOPLEVEL
;
2986 term
->osc_string
[term
->osc_strlen
++] = val
;
2987 if (term
->osc_strlen
>= 7) {
2988 palette_set(term
->frontend
, term
->osc_string
[0],
2989 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2990 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2991 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2992 term_invalidate(term
);
2993 term
->termstate
= TOPLEVEL
;
3009 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
3012 term
->termstate
= OSC_STRING
;
3013 term
->osc_strlen
= 0;
3017 term
->termstate
= TOPLEVEL
;
3018 term
->seen_disp_event
= TRUE
;
3021 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
3024 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
3027 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
3030 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
3033 * From the VT100 Manual
3034 * NOTE: The special graphics characters in the VT100
3035 * are different from those in the VT52
3037 * From VT102 manual:
3038 * 137 _ Blank - Same
3039 * 140 ` Reserved - Humm.
3040 * 141 a Solid rectangle - Similar
3041 * 142 b 1/ - Top half of fraction for the
3042 * 143 c 3/ - subscript numbers below.
3045 * 146 f Degrees - Same
3046 * 147 g Plus or minus - Same
3048 * 151 i Ellipsis (dots)
3051 * 154 l Bar at scan 0
3052 * 155 m Bar at scan 1
3053 * 156 n Bar at scan 2
3054 * 157 o Bar at scan 3 - Similar
3055 * 160 p Bar at scan 4 - Similar
3056 * 161 q Bar at scan 5 - Similar
3057 * 162 r Bar at scan 6 - Same
3058 * 163 s Bar at scan 7 - Similar
3073 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
3076 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
3079 move(term
, 0, 0, 0);
3082 if (term
->curs
.y
== 0)
3083 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
3084 else if (term
->curs
.y
> 0)
3087 term
->wrapnext
= FALSE
;
3090 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3094 erase_lots(term
, TRUE
, FALSE
, TRUE
);
3098 /* XXX Print cursor line */
3101 /* XXX Start controller mode */
3104 /* XXX Stop controller mode */
3108 term
->termstate
= VT52_Y1
;
3112 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
3115 term
->app_keypad_keys
= TRUE
;
3118 term
->app_keypad_keys
= FALSE
;
3121 /* XXX This should switch to VT100 mode not current or default
3122 * VT mode. But this will only have effect in a VT220+
3125 term
->vt52_mode
= FALSE
;
3126 term
->blink_is_real
= term
->cfg
.blinktext
;
3130 /* XXX Enter auto print mode */
3133 /* XXX Exit auto print mode */
3136 /* XXX Print screen */
3142 /* compatibility(ATARI) */
3143 move(term
, 0, 0, 0);
3144 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3148 /* compatibility(ATARI) */
3149 if (term
->curs
.y
<= term
->marg_b
)
3150 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
3153 /* compatibility(ATARI) */
3154 if (term
->curs
.y
<= term
->marg_b
)
3155 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
3158 /* compatibility(ATARI) */
3159 term
->termstate
= VT52_FG
;
3162 /* compatibility(ATARI) */
3163 term
->termstate
= VT52_BG
;
3166 /* compatibility(ATARI) */
3167 erase_lots(term
, FALSE
, TRUE
, FALSE
);
3171 /* compatibility(ATARI) */
3172 term
->cursor_on
= TRUE
;
3175 /* compatibility(ATARI) */
3176 term
->cursor_on
= FALSE
;
3178 /* case 'j': Save cursor position - broken on ST */
3179 /* case 'k': Restore cursor position */
3181 /* compatibility(ATARI) */
3182 erase_lots(term
, TRUE
, TRUE
, TRUE
);
3184 term
->wrapnext
= FALSE
;
3188 /* compatibility(ATARI) */
3189 erase_lots(term
, TRUE
, TRUE
, FALSE
);
3192 /* compatibility(ATARI) */
3193 term
->curr_attr
|= ATTR_REVERSE
;
3196 /* compatibility(ATARI) */
3197 term
->curr_attr
&= ~ATTR_REVERSE
;
3199 case 'v': /* wrap Autowrap on - Wyse style */
3200 /* compatibility(ATARI) */
3203 case 'w': /* Autowrap off */
3204 /* compatibility(ATARI) */
3209 /* compatibility(OTHER) */
3210 term
->vt52_bold
= FALSE
;
3211 term
->curr_attr
= ATTR_DEFAULT
;
3213 term
->erase_char
= (' ' | ATTR_ASCII
|
3215 (ATTR_FGMASK
| ATTR_BGMASK
)));
3218 /* compatibility(VI50) */
3219 term
->curr_attr
|= ATTR_UNDER
;
3222 /* compatibility(VI50) */
3223 term
->curr_attr
&= ~ATTR_UNDER
;
3226 /* compatibility(VI50) */
3227 term
->vt52_bold
= TRUE
;
3228 term
->curr_attr
|= ATTR_BOLD
;
3231 /* compatibility(VI50) */
3232 term
->vt52_bold
= FALSE
;
3233 term
->curr_attr
&= ~ATTR_BOLD
;
3239 term
->termstate
= VT52_Y2
;
3240 move(term
, term
->curs
.x
, c
- ' ', 0);
3243 term
->termstate
= TOPLEVEL
;
3244 move(term
, c
- ' ', term
->curs
.y
, 0);
3249 term
->termstate
= TOPLEVEL
;
3250 term
->curr_attr
&= ~ATTR_FGMASK
;
3251 term
->curr_attr
&= ~ATTR_BOLD
;
3252 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
3253 if ((c
& 0x8) || term
->vt52_bold
)
3254 term
->curr_attr
|= ATTR_BOLD
;
3257 term
->erase_char
= (' ' | ATTR_ASCII
|
3259 (ATTR_FGMASK
| ATTR_BGMASK
)));
3262 term
->termstate
= TOPLEVEL
;
3263 term
->curr_attr
&= ~ATTR_BGMASK
;
3264 term
->curr_attr
&= ~ATTR_BLINK
;
3265 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3267 /* Note: bold background */
3269 term
->curr_attr
|= ATTR_BLINK
;
3272 term
->erase_char
= (' ' | ATTR_ASCII
|
3274 (ATTR_FGMASK
| ATTR_BGMASK
)));
3277 default: break; /* placate gcc warning about enum use */
3279 if (term
->selstate
!= NO_SELECTION
) {
3280 pos cursplus
= term
->curs
;
3282 check_selection(term
, term
->curs
, cursplus
);
3286 term_print_flush(term
);
3291 * Compare two lines to determine whether they are sufficiently
3292 * alike to scroll-optimise one to the other. Return the degree of
3295 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3299 for (i
= n
= 0; i
< term
->cols
; i
++)
3300 n
+= (*a
++ == *b
++);
3306 * Given a context, update the window. Out of paranoia, we don't
3307 * allow WM_PAINT responses to do scrolling optimisations.
3309 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3311 int i
, j
, our_curs_y
, our_curs_x
;
3312 unsigned long rv
, cursor
;
3315 long cursor_background
= ERASE_CHAR
;
3316 unsigned long ticks
;
3317 #ifdef OPTIMISE_SCROLL
3318 struct scrollregion
*sr
;
3319 #endif /* OPTIMISE_SCROLL */
3322 * Check the visual bell state.
3324 if (term
->in_vbell
) {
3325 ticks
= GETTICKCOUNT();
3326 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3327 term
->in_vbell
= FALSE
;
3330 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3333 * screen array, disptop, scrtop,
3335 * cfg.blinkpc, blink_is_real, tblinker,
3336 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3339 /* Has the cursor position or type changed ? */
3340 if (term
->cursor_on
) {
3341 if (term
->has_focus
) {
3342 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3343 cursor
= TATTR_ACTCURS
;
3347 cursor
= TATTR_PASCURS
;
3349 cursor
|= TATTR_RIGHTCURS
;
3352 our_curs_y
= term
->curs
.y
- term
->disptop
;
3355 * Adjust the cursor position in the case where it's
3356 * resting on the right-hand half of a CJK wide character.
3357 * xterm's behaviour here, which seems adequate to me, is
3358 * to display the cursor covering the _whole_ character,
3359 * exactly as if it were one space to the left.
3361 unsigned long *ldata
= lineptr(term
->curs
.y
);
3362 our_curs_x
= term
->curs
.x
;
3363 if (our_curs_x
> 0 &&
3364 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3368 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3370 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3372 if (term
->dispcurs
> term
->disptext
&&
3373 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3374 term
->dispcurs
[-1] |= ATTR_INVALID
;
3375 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3376 term
->dispcurs
[1] |= ATTR_INVALID
;
3377 *term
->dispcurs
|= ATTR_INVALID
;
3380 term
->dispcurs
= NULL
;
3382 #ifdef OPTIMISE_SCROLL
3384 sr
= term
->scrollhead
;
3386 struct scrollregion
*next
= sr
->next
;
3387 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
3391 term
->scrollhead
= term
->scrolltail
= NULL
;
3392 #endif /* OPTIMISE_SCROLL */
3394 /* The normal screen data */
3395 for (i
= 0; i
< term
->rows
; i
++) {
3396 unsigned long *ldata
;
3398 int idx
, dirty_line
, dirty_run
, selected
;
3399 unsigned long attr
= 0;
3400 int updated_line
= 0;
3403 int last_run_dirty
= 0;
3405 scrpos
.y
= i
+ term
->disptop
;
3406 ldata
= lineptr(scrpos
.y
);
3407 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3409 idx
= i
* (term
->cols
+ 1);
3410 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3411 term
->disptext
[idx
+ term
->cols
]);
3412 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3414 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3415 unsigned long tattr
, tchar
;
3416 unsigned long *d
= ldata
+ j
;
3420 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3421 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3422 switch (tchar
& CSET_MASK
) {
3424 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3427 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3430 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3433 tattr
|= (tchar
& CSET_MASK
);
3435 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3438 /* Video reversing things */
3439 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3440 if (term
->seltype
== LEXICOGRAPHIC
)
3441 selected
= (posle(term
->selstart
, scrpos
) &&
3442 poslt(scrpos
, term
->selend
));
3444 selected
= (posPle(term
->selstart
, scrpos
) &&
3445 posPlt(scrpos
, term
->selend
));
3449 ^ (selected ? ATTR_REVERSE
: 0));
3451 /* 'Real' blinking ? */
3452 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3453 if (term
->has_focus
&& term
->tblinker
) {
3454 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
3456 tattr
&= ~ATTR_BLINK
;
3460 * Check the font we'll _probably_ be using to see if
3461 * the character is wide when we don't want it to be.
3463 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3464 if ((tattr
& ATTR_WIDE
) == 0 &&
3465 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3466 tattr
|= ATTR_NARROW
;
3467 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3468 tattr
|= ATTR_NARROW
;
3470 /* Cursor here ? Save the 'background' */
3471 if (i
== our_curs_y
&& j
== our_curs_x
) {
3472 cursor_background
= tattr
| tchar
;
3473 term
->dispcurs
= term
->disptext
+ idx
;
3476 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3479 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3480 j
- start
>= sizeof(ch
));
3482 /* Special hack for VT100 Linedraw glyphs */
3483 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3484 && tchar
<= 0xBD) break_run
= TRUE
;
3486 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3487 if ((tchar
| tattr
) == term
->disptext
[idx
])
3489 else if (!dirty_run
&& ccount
== 1)
3494 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3495 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3501 if (term
->ucsdata
->dbcs_screenfont
)
3502 last_run_dirty
= dirty_run
;
3503 dirty_run
= dirty_line
;
3506 if ((tchar
| tattr
) != term
->disptext
[idx
])
3508 ch
[ccount
++] = (char) tchar
;
3509 term
->disptext
[idx
] = tchar
| tattr
;
3511 /* If it's a wide char step along to the next one. */
3512 if (tattr
& ATTR_WIDE
) {
3513 if (++j
< term
->cols
) {
3517 * By construction above, the cursor should not
3518 * be on the right-hand half of this character.
3521 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3522 if (term
->disptext
[idx
] != *d
)
3524 term
->disptext
[idx
] = *d
;
3528 if (dirty_run
&& ccount
> 0) {
3529 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3533 /* Cursor on this line ? (and changed) */
3534 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3535 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3536 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3537 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3538 term
->curstype
= cursor
;
3544 * Flick the switch that says if blinking things should be shown or hidden.
3547 void term_blink(Terminal
*term
, int flg
)
3549 long now
, blink_diff
;
3551 now
= GETTICKCOUNT();
3552 blink_diff
= now
- term
->last_tblink
;
3554 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3555 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3556 term
->last_tblink
= now
;
3557 term
->tblinker
= !term
->tblinker
;
3562 term
->last_blink
= now
;
3566 blink_diff
= now
- term
->last_blink
;
3568 /* Make sure the cursor blinks no faster than system blink rate */
3569 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3572 term
->last_blink
= now
;
3573 term
->blinker
= !term
->blinker
;
3577 * Invalidate the whole screen so it will be repainted in full.
3579 void term_invalidate(Terminal
*term
)
3583 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3584 term
->disptext
[i
] = ATTR_INVALID
;
3588 * Paint the window in response to a WM_PAINT message.
3590 void term_paint(Terminal
*term
, Context ctx
,
3591 int left
, int top
, int right
, int bottom
, int immediately
)
3594 if (left
< 0) left
= 0;
3595 if (top
< 0) top
= 0;
3596 if (right
>= term
->cols
) right
= term
->cols
-1;
3597 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3599 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3600 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3601 LATTR_MODE
) == LATTR_NORM
)
3602 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3603 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3605 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3606 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3609 /* This should happen soon enough, also for some reason it sometimes
3610 * fails to actually do anything when re-sizing ... painting the wrong
3614 do_paint (term
, ctx
, FALSE
);
3618 * Attempt to scroll the scrollback. The second parameter gives the
3619 * position we want to scroll to; the first is +1 to denote that
3620 * this position is relative to the beginning of the scrollback, -1
3621 * to denote it is relative to the end, and 0 to denote that it is
3622 * relative to the current position.
3624 void term_scroll(Terminal
*term
, int rel
, int where
)
3626 int sbtop
= -sblines(term
);
3627 #ifdef OPTIMISE_SCROLL
3628 int olddisptop
= term
->disptop
;
3630 #endif /* OPTIMISE_SCROLL */
3632 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3633 if (term
->disptop
< sbtop
)
3634 term
->disptop
= sbtop
;
3635 if (term
->disptop
> 0)
3638 #ifdef OPTIMISE_SCROLL
3639 shift
= (term
->disptop
- olddisptop
);
3640 if (shift
< term
->rows
&& shift
> -term
->rows
)
3641 scroll_display(term
, 0, term
->rows
- 1, shift
);
3642 #endif /* OPTIMISE_SCROLL */
3646 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
, int desel
)
3649 wchar_t *wbptr
; /* where next char goes within workbuf */
3651 int wblen
= 0; /* workbuf len */
3652 int buflen
; /* amount of memory allocated to workbuf */
3654 buflen
= 5120; /* Default size */
3655 workbuf
= snewn(buflen
, wchar_t);
3656 wbptr
= workbuf
; /* start filling here */
3657 old_top_x
= top
.x
; /* needed for rect==1 */
3659 while (poslt(top
, bottom
)) {
3661 unsigned long *ldata
= lineptr(top
.y
);
3665 * nlpos will point at the maximum position on this line we
3666 * should copy up to. So we start it at the end of the
3670 nlpos
.x
= term
->cols
;
3673 * ... move it backwards if there's unused space at the end
3674 * of the line (and also set `nl' if this is the case,
3675 * because in normal selection mode this means we need a
3676 * newline at the end)...
3678 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3679 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3680 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3681 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3682 && poslt(top
, nlpos
))
3684 if (poslt(nlpos
, bottom
))
3686 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3687 /* Ignore the last char on the line in a WRAPPED2 line. */
3692 * ... and then clip it to the terminal x coordinate if
3693 * we're doing rectangular selection. (In this case we
3694 * still did the above, so that copying e.g. the right-hand
3695 * column from a table doesn't fill with spaces on the
3699 if (nlpos
.x
> bottom
.x
)
3701 nl
= (top
.y
< bottom
.y
);
3704 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3707 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3709 wchar_t cbuf
[16], *p
;
3710 int uc
= (ldata
[top
.x
] & 0xFFFF);
3713 if (uc
== UCSWIDE
) {
3718 switch (uc
& CSET_MASK
) {
3720 if (!term
->cfg
.rawcnp
) {
3721 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3725 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3728 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3731 switch (uc
& CSET_MASK
) {
3733 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3736 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3740 set
= (uc
& CSET_MASK
);
3741 c
= (uc
& CHAR_MASK
);
3745 if (DIRECT_FONT(uc
)) {
3746 if (c
>= ' ' && c
!= 0x7F) {
3750 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3752 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3753 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3757 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3761 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3768 for (p
= cbuf
; *p
; p
++) {
3769 /* Enough overhead for trailing NL and nul */
3770 if (wblen
>= buflen
- 16) {
3772 workbuf
= sresize(workbuf
, buflen
, wchar_t);
3773 wbptr
= workbuf
+ wblen
;
3782 for (i
= 0; i
< sel_nl_sz
; i
++) {
3784 *wbptr
++ = sel_nl
[i
];
3788 top
.x
= rect ? old_top_x
: 0;
3790 #if SELECTION_NUL_TERMINATED
3794 write_clip(term
->frontend
, workbuf
, wblen
, desel
); /* transfer to clipbd */
3795 if (buflen
> 0) /* indicates we allocated this buffer */
3799 void term_copyall(Terminal
*term
)
3802 top
.y
= -sblines(term
);
3804 clipme(term
, top
, term
->curs
, 0, TRUE
);
3808 * The wordness array is mainly for deciding the disposition of the
3809 * US-ASCII characters.
3811 static int wordtype(Terminal
*term
, int uc
)
3814 int start
, end
, ctype
;
3816 static const struct ucsword ucs_words
[] = {
3822 0x037e, 0x037e, 1}, /* Greek question mark */
3824 0x0387, 0x0387, 1}, /* Greek ano teleia */
3826 0x055a, 0x055f, 1}, /* Armenian punctuation */
3828 0x0589, 0x0589, 1}, /* Armenian full stop */
3830 0x0700, 0x070d, 1}, /* Syriac punctuation */
3832 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3834 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3836 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3838 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3840 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3842 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3844 0x2000, 0x200a, 0}, /* Various spaces */
3846 0x2070, 0x207f, 2}, /* superscript */
3848 0x2080, 0x208f, 2}, /* subscript */
3850 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3852 0x3000, 0x3000, 0}, /* ideographic space */
3854 0x3001, 0x3020, 1}, /* ideographic punctuation */
3856 0x303f, 0x309f, 3}, /* Hiragana */
3858 0x30a0, 0x30ff, 3}, /* Katakana */
3860 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3862 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3864 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3866 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3868 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3870 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3872 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3874 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3876 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3880 const struct ucsword
*wptr
;
3882 uc
&= (CSET_MASK
| CHAR_MASK
);
3884 switch (uc
& CSET_MASK
) {
3886 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3889 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3892 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3895 switch (uc
& CSET_MASK
) {
3897 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3900 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3904 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3905 * fail as there's such a thing as a double width space. :-(
3907 if (term
->ucsdata
->dbcs_screenfont
&&
3908 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3912 return term
->wordness
[uc
];
3914 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3915 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3923 * Spread the selection outwards according to the selection mode.
3925 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3927 unsigned long *ldata
;
3929 int topy
= -sblines(term
);
3931 ldata
= lineptr(p
.y
);
3933 switch (term
->selmode
) {
3936 * In this mode, every character is a separate unit, except
3937 * for runs of spaces at the end of a non-wrapping line.
3939 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3940 unsigned long *q
= ldata
+ term
->cols
;
3941 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3943 if (q
== ldata
+ term
->cols
)
3945 if (p
.x
>= q
- ldata
)
3946 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3951 * In this mode, the units are maximal runs of characters
3952 * whose `wordness' has the same value.
3954 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3957 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3958 term
->cols
-1 : term
->cols
);
3959 if (p
.x
< maxcols
-1) {
3960 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3965 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3966 unsigned long *ldata2
;
3967 ldata2
= lineptr(p
.y
+1);
3968 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3981 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3986 unsigned long *ldata2
;
3990 ldata2
= lineptr(p
.y
-1);
3991 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3992 term
->cols
-1 : term
->cols
);
3993 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3994 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
4009 * In this mode, every line is a unit.
4011 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
4017 static void sel_spread(Terminal
*term
)
4019 if (term
->seltype
== LEXICOGRAPHIC
) {
4020 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
4021 decpos(term
->selend
);
4022 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
4023 incpos(term
->selend
);
4027 void term_do_paste(Terminal
*term
)
4032 get_clip(term
->frontend
, &data
, &len
);
4033 if (data
&& len
> 0) {
4036 term_seen_key_event(term
); /* pasted data counts */
4038 if (term
->paste_buffer
)
4039 sfree(term
->paste_buffer
);
4040 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
4041 term
->paste_buffer
= snewn(len
, wchar_t);
4044 while (p
< data
+ len
) {
4045 while (p
< data
+ len
&&
4046 !(p
<= data
+ len
- sel_nl_sz
&&
4047 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
4052 for (i
= 0; i
< p
- q
; i
++) {
4053 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
4057 if (p
<= data
+ len
- sel_nl_sz
&&
4058 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
4059 term
->paste_buffer
[term
->paste_len
++] = '\015';
4065 /* Assume a small paste will be OK in one go. */
4066 if (term
->paste_len
< 256) {
4068 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
4069 if (term
->paste_buffer
)
4070 sfree(term
->paste_buffer
);
4071 term
->paste_buffer
= 0;
4072 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
4075 get_clip(term
->frontend
, NULL
, NULL
);
4078 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
4079 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
4082 unsigned long *ldata
;
4083 int raw_mouse
= (term
->xterm_mouse
&&
4084 !term
->cfg
.no_mouse_rep
&&
4085 !(term
->cfg
.mouse_override
&& shift
));
4086 int default_seltype
;
4090 if (a
== MA_DRAG
&& !raw_mouse
)
4091 term_scroll(term
, 0, -1);
4093 if (y
>= term
->rows
) {
4095 if (a
== MA_DRAG
&& !raw_mouse
)
4096 term_scroll(term
, 0, +1);
4105 if (x
>= term
->cols
)
4108 selpoint
.y
= y
+ term
->disptop
;
4110 ldata
= lineptr(selpoint
.y
);
4111 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
4115 int encstate
= 0, r
, c
;
4122 encstate
= 0x20; /* left button down */
4133 case MBT_WHEEL_DOWN
:
4136 default: break; /* placate gcc warning about enum use */
4140 if (term
->xterm_mouse
== 1)
4146 term
->mouse_is_down
= 0;
4149 if (term
->mouse_is_down
== braw
)
4151 term
->mouse_is_down
= braw
;
4153 default: break; /* placate gcc warning about enum use */
4162 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
4163 ldisc_send(term
->ldisc
, abuf
, 6, 0);
4169 * Set the selection type (rectangular or normal) at the start
4170 * of a selection attempt, from the state of Alt.
4172 if (!alt
^ !term
->cfg
.rect_select
)
4173 default_seltype
= RECTANGULAR
;
4175 default_seltype
= LEXICOGRAPHIC
;
4177 if (term
->selstate
== NO_SELECTION
) {
4178 term
->seltype
= default_seltype
;
4181 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
4183 term
->selstate
= ABOUT_TO
;
4184 term
->seltype
= default_seltype
;
4185 term
->selanchor
= selpoint
;
4186 term
->selmode
= SM_CHAR
;
4187 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
4189 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
4190 term
->selstate
= DRAGGING
;
4191 term
->selstart
= term
->selanchor
= selpoint
;
4192 term
->selend
= term
->selstart
;
4193 incpos(term
->selend
);
4195 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
4196 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
4197 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
4199 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
4200 term
->selstate
== SELECTED
) {
4201 if (term
->seltype
== LEXICOGRAPHIC
) {
4203 * For normal selection, we extend by moving
4204 * whichever end of the current selection is closer
4207 if (posdiff(selpoint
, term
->selstart
) <
4208 posdiff(term
->selend
, term
->selstart
) / 2) {
4209 term
->selanchor
= term
->selend
;
4210 decpos(term
->selanchor
);
4212 term
->selanchor
= term
->selstart
;
4216 * For rectangular selection, we have a choice of
4217 * _four_ places to put selanchor and selpoint: the
4218 * four corners of the selection.
4220 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
4221 term
->selanchor
.x
= term
->selend
.x
-1;
4223 term
->selanchor
.x
= term
->selstart
.x
;
4225 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
4226 term
->selanchor
.y
= term
->selend
.y
;
4228 term
->selanchor
.y
= term
->selstart
.y
;
4230 term
->selstate
= DRAGGING
;
4232 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
4233 term
->selanchor
= selpoint
;
4234 term
->selstate
= DRAGGING
;
4235 if (term
->seltype
== LEXICOGRAPHIC
) {
4237 * For normal selection, we set (selstart,selend) to
4238 * (selpoint,selanchor) in some order.
4240 if (poslt(selpoint
, term
->selanchor
)) {
4241 term
->selstart
= selpoint
;
4242 term
->selend
= term
->selanchor
;
4243 incpos(term
->selend
);
4245 term
->selstart
= term
->selanchor
;
4246 term
->selend
= selpoint
;
4247 incpos(term
->selend
);
4251 * For rectangular selection, we may need to
4252 * interchange x and y coordinates (if the user has
4253 * dragged in the -x and +y directions, or vice versa).
4255 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
4256 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
4257 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
4258 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
4261 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
4263 if (term
->selstate
== DRAGGING
) {
4265 * We've completed a selection. We now transfer the
4266 * data to the clipboard.
4268 clipme(term
, term
->selstart
, term
->selend
,
4269 (term
->seltype
== RECTANGULAR
), FALSE
);
4270 term
->selstate
= SELECTED
;
4272 term
->selstate
= NO_SELECTION
;
4273 } else if (bcooked
== MBT_PASTE
4275 #if MULTICLICK_ONLY_EVENT
4276 || a
== MA_2CLK
|| a
== MA_3CLK
4279 request_paste(term
->frontend
);
4285 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
4286 unsigned int modifiers
, unsigned int flags
)
4290 int prependesc
= FALSE
;
4294 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
4295 for (i
= 0; i
< tlen
; i
++)
4296 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
4297 fprintf(stderr
, "\n");
4301 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
4304 /* Currently, Meta always just prefixes everything with ESC. */
4305 if (modifiers
& PKM_META
)
4307 modifiers
&= ~PKM_META
;
4310 * Alt is only used for Alt+keypad, which isn't supported yet, so
4313 modifiers
&= ~PKM_ALT
;
4315 /* Standard local function keys */
4316 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
4318 if (keysym
== PK_PAGEUP
)
4319 /* scroll up one page */;
4320 if (keysym
== PK_PAGEDOWN
)
4321 /* scroll down on page */;
4322 if (keysym
== PK_INSERT
)
4323 term_do_paste(term
);
4326 if (keysym
== PK_PAGEUP
)
4327 /* scroll up one line */;
4328 if (keysym
== PK_PAGEDOWN
)
4329 /* scroll down one line */;
4330 /* Control-Numlock for app-keypad mode switch */
4331 if (keysym
== PK_PF1
)
4332 term
->app_keypad_keys
^= 1;
4336 if (modifiers
& PKM_ALT
) {
4337 /* Alt+F4 (close) */
4338 /* Alt+Return (full screen) */
4339 /* Alt+Space (system menu) */
4342 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
4343 text
[0] >= 0x20 && text
[0] <= 0x7e) {
4344 /* ASCII chars + Control */
4345 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
4346 (text
[0] >= 0x61 && text
[0] <= 0x7a))
4350 * Control-2 should return ^@ (0x00), Control-6 should return
4351 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4352 * the DOS keyboard handling did it, and we have nothing better
4353 * to do with the key combo in question, we'll also map
4354 * Control-Backquote to ^\ (0x1C).
4357 case ' ': text
[0] = 0x00; break;
4358 case '-': text
[0] = 0x1f; break;
4359 case '/': text
[0] = 0x1f; break;
4360 case '2': text
[0] = 0x00; break;
4361 case '3': text
[0] = 0x1b; break;
4362 case '4': text
[0] = 0x1c; break;
4363 case '5': text
[0] = 0x1d; break;
4364 case '6': text
[0] = 0x1e; break;
4365 case '7': text
[0] = 0x1f; break;
4366 case '8': text
[0] = 0x7f; break;
4367 case '`': text
[0] = 0x1c; break;
4372 /* Nethack keypad */
4373 if (term
->cfg
.nethack_keypad
) {
4376 case PK_KP1
: c
= 'b'; break;
4377 case PK_KP2
: c
= 'j'; break;
4378 case PK_KP3
: c
= 'n'; break;
4379 case PK_KP4
: c
= 'h'; break;
4380 case PK_KP5
: c
= '.'; break;
4381 case PK_KP6
: c
= 'l'; break;
4382 case PK_KP7
: c
= 'y'; break;
4383 case PK_KP8
: c
= 'k'; break;
4384 case PK_KP9
: c
= 'u'; break;
4385 default: break; /* else gcc warns `enum value not used' */
4389 if (modifiers
& PKM_CONTROL
)
4391 else if (modifiers
& PKM_SHIFT
)
4399 /* Numeric Keypad */
4400 if (PK_ISKEYPAD(keysym
)) {
4404 * In VT400 mode, PFn always emits an escape sequence. In
4405 * Linux and tilde modes, this only happens in app keypad mode.
4407 if (term
->cfg
.funky_type
== FUNKY_VT400
||
4408 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
4409 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
4410 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
4412 case PK_PF1
: xkey
= 'P'; break;
4413 case PK_PF2
: xkey
= 'Q'; break;
4414 case PK_PF3
: xkey
= 'R'; break;
4415 case PK_PF4
: xkey
= 'S'; break;
4416 default: break; /* else gcc warns `enum value not used' */
4419 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
4421 case PK_KP0
: xkey
= 'p'; break;
4422 case PK_KP1
: xkey
= 'q'; break;
4423 case PK_KP2
: xkey
= 'r'; break;
4424 case PK_KP3
: xkey
= 's'; break;
4425 case PK_KP4
: xkey
= 't'; break;
4426 case PK_KP5
: xkey
= 'u'; break;
4427 case PK_KP6
: xkey
= 'v'; break;
4428 case PK_KP7
: xkey
= 'w'; break;
4429 case PK_KP8
: xkey
= 'x'; break;
4430 case PK_KP9
: xkey
= 'y'; break;
4431 case PK_KPDECIMAL
: xkey
= 'n'; break;
4432 case PK_KPENTER
: xkey
= 'M'; break;
4433 default: break; /* else gcc warns `enum value not used' */
4435 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
4437 * xterm can't see the layout of the keypad, so it has
4438 * to rely on the X keysyms returned by the keys.
4439 * Hence, we look at the strings here, not the PuTTY
4440 * keysyms (which describe the layout).
4444 if (modifiers
& PKM_SHIFT
)
4449 case '/': xkey
= 'o'; break;
4450 case '*': xkey
= 'j'; break;
4451 case '-': xkey
= 'm'; break;
4455 * In all other modes, we try to retain the layout of
4456 * the DEC keypad in application mode.
4460 /* This key covers the '-' and ',' keys on a VT220 */
4461 if (modifiers
& PKM_SHIFT
)
4462 xkey
= 'm'; /* VT220 '-' */
4464 xkey
= 'l'; /* VT220 ',' */
4466 case PK_KPMINUS
: xkey
= 'm'; break;
4467 case PK_KPCOMMA
: xkey
= 'l'; break;
4468 default: break; /* else gcc warns `enum value not used' */
4473 if (term
->vt52_mode
) {
4474 if (xkey
>= 'P' && xkey
<= 'S')
4475 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4477 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
4479 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4482 /* Not in application mode -- treat the number pad as arrow keys? */
4483 if ((flags
& PKF_NUMLOCK
) == 0) {
4485 case PK_KP0
: keysym
= PK_INSERT
; break;
4486 case PK_KP1
: keysym
= PK_END
; break;
4487 case PK_KP2
: keysym
= PK_DOWN
; break;
4488 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
4489 case PK_KP4
: keysym
= PK_LEFT
; break;
4490 case PK_KP5
: keysym
= PK_REST
; break;
4491 case PK_KP6
: keysym
= PK_RIGHT
; break;
4492 case PK_KP7
: keysym
= PK_HOME
; break;
4493 case PK_KP8
: keysym
= PK_UP
; break;
4494 case PK_KP9
: keysym
= PK_PAGEUP
; break;
4495 default: break; /* else gcc warns `enum value not used' */
4500 /* Miscellaneous keys */
4507 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
4508 else if (modifiers
== PKM_SHIFT
)
4509 /* We do the opposite of what is configured */
4510 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
4516 else if (modifiers
== PKM_SHIFT
)
4517 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
4520 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4522 if (modifiers
== PKM_CONTROL
)
4527 case PK_KPENTER
: /* Odd keypad modes handled above */
4528 if (modifiers
== 0) {
4530 if (term
->cr_lf_return
)
4534 default: break; /* else gcc warns `enum value not used' */
4537 /* SCO function keys and editing keys */
4538 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
4539 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
4540 static char const codes
[] =
4541 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4542 int index
= keysym
- PK_F1
;
4544 if (modifiers
& PKM_SHIFT
) index
+= 12;
4545 if (modifiers
& PKM_CONTROL
) index
+= 24;
4546 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
4549 if (PK_ISEDITING(keysym
)) {
4553 case PK_DELETE
: *p
++ = 0x7f; goto done
;
4554 case PK_HOME
: xkey
= 'H'; break;
4555 case PK_INSERT
: xkey
= 'L'; break;
4556 case PK_END
: xkey
= 'F'; break;
4557 case PK_PAGEUP
: xkey
= 'I'; break;
4558 case PK_PAGEDOWN
: xkey
= 'G'; break;
4559 default: break; /* else gcc warns `enum value not used' */
4561 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4565 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
4568 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
4569 /* Xterm shuffles these keys, apparently. */
4571 case PK_HOME
: keysym
= PK_INSERT
; break;
4572 case PK_INSERT
: keysym
= PK_HOME
; break;
4573 case PK_DELETE
: keysym
= PK_END
; break;
4574 case PK_END
: keysym
= PK_PAGEUP
; break;
4575 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
4576 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
4577 default: break; /* else gcc warns `enum value not used' */
4582 if (term
->cfg
.rxvt_homeend
&&
4583 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
4584 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
4588 if (term
->vt52_mode
) {
4592 * A real VT52 doesn't have these, and a VT220 doesn't
4593 * send anything for them in VT52 mode.
4596 case PK_HOME
: xkey
= 'H'; break;
4597 case PK_INSERT
: xkey
= 'L'; break;
4598 case PK_DELETE
: xkey
= 'M'; break;
4599 case PK_END
: xkey
= 'E'; break;
4600 case PK_PAGEUP
: xkey
= 'I'; break;
4601 case PK_PAGEDOWN
: xkey
= 'G'; break;
4602 default: xkey
=0; break; /* else gcc warns `enum value not used'*/
4604 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4609 case PK_HOME
: code
= 1; break;
4610 case PK_INSERT
: code
= 2; break;
4611 case PK_DELETE
: code
= 3; break;
4612 case PK_END
: code
= 4; break;
4613 case PK_PAGEUP
: code
= 5; break;
4614 case PK_PAGEDOWN
: code
= 6; break;
4615 default: code
= 0; break; /* else gcc warns `enum value not used' */
4617 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
4621 if (PK_ISFKEY(keysym
)) {
4622 /* Map Shift+F1-F10 to F11-F20 */
4623 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
4625 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
4627 /* XXX This overrides the XTERM/VT52 mode below */
4629 if (keysym
>= PK_F6
) offt
++;
4630 if (keysym
>= PK_F12
) offt
++;
4631 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
4632 'P' + keysym
- PK_F1
- offt
);
4635 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
4636 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
4639 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
4640 if (term
->vt52_mode
)
4641 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
4643 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
4646 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
4650 if (PK_ISCURSOR(keysym
)) {
4654 case PK_UP
: xkey
= 'A'; break;
4655 case PK_DOWN
: xkey
= 'B'; break;
4656 case PK_RIGHT
: xkey
= 'C'; break;
4657 case PK_LEFT
: xkey
= 'D'; break;
4658 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
4659 default: xkey
= 0; break; /* else gcc warns `enum value not used' */
4661 if (term
->vt52_mode
)
4662 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4664 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
4666 /* Useful mapping of Ctrl-arrows */
4667 if (modifiers
== PKM_CONTROL
)
4671 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4673 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4679 if (p
> output
|| tlen
> 0) {
4681 * Interrupt an ongoing paste. I'm not sure
4682 * this is sensible, but for the moment it's
4683 * preferable to having to faff about buffering
4689 * We need not bother about stdin backlogs
4690 * here, because in GUI PuTTY we can't do
4691 * anything about it anyway; there's no means
4692 * of asking Windows to hold off on KEYDOWN
4693 * messages. We _have_ to buffer everything
4696 term_seen_key_event(term
);
4700 fprintf(stderr
, "sending ESC\n");
4702 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
4707 fprintf(stderr
, "sending %d bytes:", p
- output
);
4708 for (i
= 0; i
< p
- output
; i
++)
4709 fprintf(stderr
, " %02x", output
[i
]);
4710 fprintf(stderr
, "\n");
4712 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
4713 } else if (tlen
> 0) {
4715 fprintf(stderr
, "sending %d unichars:", tlen
);
4716 for (i
= 0; i
< tlen
; i
++)
4717 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
4718 fprintf(stderr
, "\n");
4720 luni_send(term
->ldisc
, text
, tlen
, 1);
4725 void term_nopaste(Terminal
*term
)
4727 if (term
->paste_len
== 0)
4729 sfree(term
->paste_buffer
);
4730 term
->paste_buffer
= NULL
;
4731 term
->paste_len
= 0;
4734 int term_paste_pending(Terminal
*term
)
4736 return term
->paste_len
!= 0;
4739 void term_paste(Terminal
*term
)
4741 long now
, paste_diff
;
4743 if (term
->paste_len
== 0)
4746 /* Don't wait forever to paste */
4747 if (term
->paste_hold
) {
4748 now
= GETTICKCOUNT();
4749 paste_diff
= now
- term
->last_paste
;
4750 if (paste_diff
>= 0 && paste_diff
< 450)
4753 term
->paste_hold
= 0;
4755 while (term
->paste_pos
< term
->paste_len
) {
4757 while (n
+ term
->paste_pos
< term
->paste_len
) {
4758 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4762 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4763 term
->paste_pos
+= n
;
4765 if (term
->paste_pos
< term
->paste_len
) {
4766 term
->paste_hold
= 1;
4770 sfree(term
->paste_buffer
);
4771 term
->paste_buffer
= NULL
;
4772 term
->paste_len
= 0;
4775 static void deselect(Terminal
*term
)
4777 term
->selstate
= NO_SELECTION
;
4778 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4781 void term_deselect(Terminal
*term
)
4787 int term_ldisc(Terminal
*term
, int option
)
4789 if (option
== LD_ECHO
)
4790 return term
->term_echoing
;
4791 if (option
== LD_EDIT
)
4792 return term
->term_editing
;
4796 int term_data(Terminal
*term
, int is_stderr
, const char *data
, int len
)
4798 bufchain_add(&term
->inbuf
, data
, len
);
4800 if (!term
->in_term_out
) {
4801 term
->in_term_out
= TRUE
;
4802 term_blink(term
, 1);
4804 term
->in_term_out
= FALSE
;
4808 * term_out() always completely empties inbuf. Therefore,
4809 * there's no reason at all to return anything other than zero
4810 * from this function, because there _can't_ be a question of
4811 * the remote side needing to wait until term_out() has cleared
4814 * This is a slightly suboptimal way to deal with SSH2 - in
4815 * principle, the window mechanism would allow us to continue
4816 * to accept data on forwarded ports and X connections even
4817 * while the terminal processing was going slowly - but we
4818 * can't do the 100% right thing without moving the terminal
4819 * processing into a separate thread, and that might hurt
4820 * portability. So we manage stdout buffering the old SSH1 way:
4821 * if the terminal processing goes slowly, the whole SSH
4822 * connection stops accepting data until it's ready.
4824 * In practice, I can't imagine this causing serious trouble.
4829 void term_provide_logctx(Terminal
*term
, void *logctx
)
4831 term
->logctx
= logctx
;