10 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
11 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
12 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
13 #define posdiff(p1,p2) ( ((p1).y - (p2).y) * (term->cols+1) + (p1).x - (p2).x )
15 /* Product-order comparisons for rectangular block selection. */
16 #define posPlt(p1,p2) ( (p1).y <= (p2).y && (p1).x < (p2).x )
17 #define posPle(p1,p2) ( (p1).y <= (p2).y && (p1).x <= (p2).x )
19 #define incpos(p) ( (p).x == term->cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
20 #define decpos(p) ( (p).x == 0 ? ((p).x = term->cols, (p).y--, 1) : ((p).x--, 0) )
24 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
25 #define CL_VT100 0x0002 /* VT100 */
26 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
27 #define CL_VT102 0x0008 /* VT102 */
28 #define CL_VT220 0x0010 /* VT220 */
29 #define CL_VT320 0x0020 /* VT320 */
30 #define CL_VT420 0x0040 /* VT420 */
31 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
32 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
33 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
34 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
35 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
37 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
38 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
39 #define TM_VT102 (TM_VT100AVO|CL_VT102)
40 #define TM_VT220 (TM_VT102|CL_VT220)
41 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
42 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
44 #define TM_PUTTY (0xFFFF)
46 #define compatibility(x) \
47 if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
48 term->termstate=TOPLEVEL; \
51 #define compatibility2(x,y) \
52 if ( ((CL_##x|CL_##y)&term->compatibility_level) == 0 ) { \
53 term->termstate=TOPLEVEL; \
57 #define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
59 #define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
60 const wchar_t sel_nl
[] = SEL_NL
;
63 * Fetch the character at a particular position in a line array,
64 * for purposes of `wordtype'. The reason this isn't just a simple
65 * array reference is that if the character we find is UCSWIDE,
66 * then we must look one space further to the left.
68 #define UCSGET(a, x) \
69 ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
70 (a)[(x)-1] : (a)[(x)] )
73 * Internal prototypes.
75 static unsigned long *resizeline(unsigned long *, int);
76 static unsigned long *lineptr(Terminal
*, int, int);
77 static void do_paint(Terminal
*, Context
, int);
78 static void erase_lots(Terminal
*, int, int, int);
79 static void swap_screen(Terminal
*, int, int, int);
80 static void update_sbar(Terminal
*);
81 static void deselect(Terminal
*);
82 static void term_print_finish(Terminal
*);
83 #ifdef OPTIMISE_SCROLL
84 static void scroll_display(Terminal
*, int, int, int);
85 #endif /* OPTIMISE_SCROLL */
88 * Resize a line to make it `cols' columns wide.
90 static unsigned long *resizeline(unsigned long *line
, int cols
)
93 unsigned long lineattrs
;
95 if (line
[0] != (unsigned long)cols
) {
97 * This line is the wrong length, which probably means it
98 * hasn't been accessed since a resize. Resize it now.
101 lineattrs
= line
[oldlen
+ 1];
102 line
= srealloc(line
, TSIZE
* (2 + cols
));
104 for (i
= oldlen
; i
< cols
; i
++)
105 line
[i
+ 1] = ERASE_CHAR
;
106 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
113 * Get the number of lines in the scrollback.
115 static int sblines(Terminal
*term
)
117 int sblines
= count234(term
->scrollback
);
118 if (term
->cfg
.erase_to_scrollback
&&
119 term
->alt_which
&& term
->alt_screen
) {
120 sblines
+= term
->alt_sblines
;
126 * Retrieve a line of the screen or of the scrollback, according to
127 * whether the y coordinate is non-negative or negative
130 static unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
132 unsigned long *line
, *newline
;
137 whichtree
= term
->screen
;
141 if (term
->cfg
.erase_to_scrollback
&&
142 term
->alt_which
&& term
->alt_screen
) {
143 altlines
= term
->alt_sblines
;
146 whichtree
= term
->scrollback
;
147 treeindex
= y
+ altlines
+ count234(term
->scrollback
);
149 whichtree
= term
->alt_screen
;
150 treeindex
= y
+ term
->alt_sblines
;
151 /* treeindex = y + count234(term->alt_screen); */
154 line
= index234(whichtree
, treeindex
);
156 /* We assume that we don't screw up and retrieve something out of range. */
157 assert(line
!= NULL
);
159 newline
= resizeline(line
, term
->cols
);
160 if (newline
!= line
) {
161 delpos234(whichtree
, treeindex
);
162 addpos234(whichtree
, newline
, treeindex
);
169 #define lineptr(x) lineptr(term,x,__LINE__)
172 * Set up power-on settings for the terminal.
174 static void power_on(Terminal
*term
)
176 term
->curs
.x
= term
->curs
.y
= 0;
177 term
->alt_x
= term
->alt_y
= 0;
178 term
->savecurs
.x
= term
->savecurs
.y
= 0;
179 term
->alt_t
= term
->marg_t
= 0;
180 if (term
->rows
!= -1)
181 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
183 term
->alt_b
= term
->marg_b
= 0;
184 if (term
->cols
!= -1) {
186 for (i
= 0; i
< term
->cols
; i
++)
187 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
189 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
190 term
->alt_ins
= term
->insert
= FALSE
;
191 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
192 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
193 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
194 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
196 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
197 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
199 term
->in_vbell
= FALSE
;
201 term
->big_cursor
= 0;
202 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
203 term
->term_editing
= term
->term_echoing
= FALSE
;
204 term
->app_cursor_keys
= term
->cfg
.app_cursor
;
205 term
->app_keypad_keys
= term
->cfg
.app_keypad
;
206 term
->use_bce
= term
->cfg
.bce
;
207 term
->blink_is_real
= term
->cfg
.blinktext
;
208 term
->erase_char
= ERASE_CHAR
;
210 term_print_finish(term
);
213 for (i
= 0; i
< 256; i
++)
214 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
217 swap_screen(term
, 1, FALSE
, FALSE
);
218 erase_lots(term
, FALSE
, TRUE
, TRUE
);
219 swap_screen(term
, 0, FALSE
, FALSE
);
220 erase_lots(term
, FALSE
, TRUE
, TRUE
);
225 * Force a screen update.
227 void term_update(Terminal
*term
)
230 ctx
= get_ctx(term
->frontend
);
232 int need_sbar_update
= term
->seen_disp_event
;
233 if (term
->seen_disp_event
&& term
->cfg
.scroll_on_disp
) {
234 term
->disptop
= 0; /* return to main screen */
235 term
->seen_disp_event
= 0;
236 need_sbar_update
= TRUE
;
238 if (need_sbar_update
)
240 do_paint(term
, ctx
, TRUE
);
241 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
247 * Called from front end when a keypress occurs, to trigger
248 * anything magical that needs to happen in that situation.
250 void term_seen_key_event(Terminal
*term
)
253 * On any keypress, clear the bell overload mechanism
254 * completely, on the grounds that large numbers of
255 * beeps coming from deliberate key action are likely
256 * to be intended (e.g. beeps from filename completion
257 * blocking repeatedly).
259 term
->beep_overloaded
= FALSE
;
260 while (term
->beephead
) {
261 struct beeptime
*tmp
= term
->beephead
;
262 term
->beephead
= tmp
->next
;
265 term
->beeptail
= NULL
;
269 * Reset the scrollback on keypress, if we're doing that.
271 if (term
->cfg
.scroll_on_key
) {
272 term
->disptop
= 0; /* return to main screen */
273 term
->seen_disp_event
= 1;
278 * Same as power_on(), but an external function.
280 void term_pwron(Terminal
*term
)
283 if (term
->ldisc
) /* cause ldisc to notice changes */
284 ldisc_send(term
->ldisc
, NULL
, 0, 0);
292 * When the user reconfigures us, we need to check the forbidden-
293 * alternate-screen config option, disable raw mouse mode if the
294 * user has disabled mouse reporting, and abandon a print job if
295 * the user has disabled printing.
297 void term_reconfig(Terminal
*term
, Config
*cfg
)
300 * Before adopting the new config, check all those terminal
301 * settings which control power-on defaults; and if they've
302 * changed, we will modify the current state as well as the
303 * default one. The full list is: Auto wrap mode, DEC Origin
304 * Mode, BCE, blinking text, character classes.
306 int reset_wrap
, reset_decom
, reset_bce
, reset_blink
, reset_charclass
;
309 reset_wrap
= (term
->cfg
.wrap_mode
!= cfg
->wrap_mode
);
310 reset_decom
= (term
->cfg
.dec_om
!= cfg
->dec_om
);
311 reset_bce
= (term
->cfg
.bce
!= cfg
->bce
);
312 reset_blink
= (term
->cfg
.blinktext
!= cfg
->blinktext
);
314 for (i
= 0; i
< lenof(term
->cfg
.wordness
); i
++)
315 if (term
->cfg
.wordness
[i
] != cfg
->wordness
[i
])
318 term
->cfg
= *cfg
; /* STRUCTURE COPY */
321 term
->alt_wrap
= term
->wrap
= term
->cfg
.wrap_mode
;
323 term
->alt_om
= term
->dec_om
= term
->cfg
.dec_om
;
325 term
->use_bce
= term
->cfg
.bce
;
327 term
->blink_is_real
= term
->cfg
.blinktext
;
329 for (i
= 0; i
< 256; i
++)
330 term
->wordness
[i
] = term
->cfg
.wordness
[i
];
332 if (term
->cfg
.no_alt_screen
)
333 swap_screen(term
, 0, FALSE
, FALSE
);
334 if (term
->cfg
.no_mouse_rep
) {
335 term
->xterm_mouse
= 0;
336 set_raw_mouse_mode(term
->frontend
, 0);
338 if (term
->cfg
.no_remote_charset
) {
339 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
340 term
->sco_acs
= term
->alt_sco_acs
= 0;
343 if (!*term
->cfg
.printer
) {
344 term_print_finish(term
);
349 * Clear the scrollback.
351 void term_clrsb(Terminal
*term
)
355 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
358 term
->alt_sblines
= 0;
363 * Initialise the terminal.
365 Terminal
*term_init(Config
*mycfg
, struct unicode_data
*ucsdata
,
371 * Allocate a new Terminal structure and initialise the fields
374 term
= smalloc(sizeof(Terminal
));
375 term
->frontend
= frontend
;
376 term
->ucsdata
= ucsdata
;
377 term
->cfg
= *mycfg
; /* STRUCTURE COPY */
379 term
->compatibility_level
= TM_PUTTY
;
380 strcpy(term
->id_string
, "\033[?6c");
381 term
->last_blink
= term
->last_tblink
= 0;
382 term
->paste_buffer
= NULL
;
384 term
->last_paste
= 0;
385 bufchain_init(&term
->inbuf
);
386 bufchain_init(&term
->printer_buf
);
387 term
->printing
= term
->only_printing
= FALSE
;
388 term
->print_job
= NULL
;
389 term
->vt52_mode
= FALSE
;
390 term
->cr_lf_return
= FALSE
;
391 term
->seen_disp_event
= FALSE
;
392 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
393 term
->reset_132
= FALSE
;
394 term
->blinker
= term
->tblinker
= 0;
396 term
->repeat_off
= FALSE
;
397 term
->termstate
= TOPLEVEL
;
398 term
->selstate
= NO_SELECTION
;
401 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
402 term
->alt_sblines
= 0;
404 term
->disptext
= term
->dispcurs
= NULL
;
407 term
->rows
= term
->cols
= -1;
409 term
->beephead
= term
->beeptail
= NULL
;
410 #ifdef OPTIMISE_SCROLL
411 term
->scrollhead
= term
->scrolltail
= NULL
;
412 #endif /* OPTIMISE_SCROLL */
414 term
->lastbeep
= FALSE
;
415 term
->beep_overloaded
= FALSE
;
416 term
->attr_mask
= 0xffffffff;
417 term
->resize_fn
= NULL
;
418 term
->resize_ctx
= NULL
;
423 void term_free(Terminal
*term
)
426 struct beeptime
*beep
;
428 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
)
430 freetree234(term
->scrollback
);
431 while ((line
= delpos234(term
->screen
, 0)) != NULL
)
433 freetree234(term
->screen
);
434 while ((line
= delpos234(term
->alt_screen
, 0)) != NULL
)
436 freetree234(term
->alt_screen
);
437 sfree(term
->disptext
);
438 while (term
->beephead
) {
439 beep
= term
->beephead
;
440 term
->beephead
= beep
->next
;
443 bufchain_clear(&term
->inbuf
);
445 printer_finish_job(term
->print_job
);
446 bufchain_clear(&term
->printer_buf
);
447 sfree(term
->paste_buffer
);
452 * Set up the terminal for a given size.
454 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
457 unsigned long *newdisp
, *line
;
460 int save_alt_which
= term
->alt_which
;
462 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
463 newsavelines
== term
->savelines
)
464 return; /* nothing to do */
467 swap_screen(term
, 0, FALSE
, FALSE
);
469 term
->alt_t
= term
->marg_t
= 0;
470 term
->alt_b
= term
->marg_b
= newrows
- 1;
472 if (term
->rows
== -1) {
473 term
->scrollback
= newtree234(NULL
);
474 term
->screen
= newtree234(NULL
);
479 * Resize the screen and scrollback. We only need to shift
480 * lines around within our data structures, because lineptr()
481 * will take care of resizing each individual line if
484 * - If the new screen and the old screen differ in length, we
485 * must shunt some lines in from the scrollback or out to
488 * - If doing that fails to provide us with enough material to
489 * fill the new screen (i.e. the number of rows needed in
490 * the new screen exceeds the total number in the previous
491 * screen+scrollback), we must invent some blank lines to
494 * - Then, if the new scrollback length is less than the
495 * amount of scrollback we actually have, we must throw some
498 sblen
= count234(term
->scrollback
);
499 /* Do this loop to expand the screen if newrows > rows */
500 for (i
= term
->rows
; i
< newrows
; i
++) {
502 line
= delpos234(term
->scrollback
, --sblen
);
504 line
= smalloc(TSIZE
* (newcols
+ 2));
506 for (j
= 0; j
< newcols
; j
++)
507 line
[j
+ 1] = ERASE_CHAR
;
508 line
[newcols
+ 1] = LATTR_NORM
;
510 addpos234(term
->screen
, line
, 0);
512 /* Do this loop to shrink the screen if newrows < rows */
513 for (i
= newrows
; i
< term
->rows
; i
++) {
514 line
= delpos234(term
->screen
, 0);
515 addpos234(term
->scrollback
, line
, sblen
++);
517 assert(count234(term
->screen
) == newrows
);
518 while (sblen
> newsavelines
) {
519 line
= delpos234(term
->scrollback
, 0);
523 assert(count234(term
->scrollback
) <= newsavelines
);
526 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
527 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
528 newdisp
[i
] = ATTR_INVALID
;
529 sfree(term
->disptext
);
530 term
->disptext
= newdisp
;
531 term
->dispcurs
= NULL
;
533 newalt
= newtree234(NULL
);
534 for (i
= 0; i
< newrows
; i
++) {
535 line
= smalloc(TSIZE
* (newcols
+ 2));
537 for (j
= 0; j
< newcols
; j
++)
538 line
[j
+ 1] = term
->erase_char
;
539 line
[newcols
+ 1] = LATTR_NORM
;
540 addpos234(newalt
, line
, i
);
542 if (term
->alt_screen
) {
543 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
545 freetree234(term
->alt_screen
);
547 term
->alt_screen
= newalt
;
548 term
->alt_sblines
= 0;
550 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
553 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
554 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
558 term
->curs
.y
+= newrows
- term
->rows
;
559 if (term
->curs
.y
< 0)
561 if (term
->curs
.y
>= newrows
)
562 term
->curs
.y
= newrows
- 1;
563 if (term
->curs
.x
>= newcols
)
564 term
->curs
.x
= newcols
- 1;
565 term
->alt_x
= term
->alt_y
= 0;
566 term
->wrapnext
= term
->alt_wnext
= FALSE
;
568 term
->rows
= newrows
;
569 term
->cols
= newcols
;
570 term
->savelines
= newsavelines
;
573 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
578 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
582 * Hand a function and context pointer to the terminal which it can
583 * use to notify a back end of resizes.
585 void term_provide_resize_fn(Terminal
*term
,
586 void (*resize_fn
)(void *, int, int),
589 term
->resize_fn
= resize_fn
;
590 term
->resize_ctx
= resize_ctx
;
591 if (term
->cols
> 0 && term
->rows
> 0)
592 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
595 /* Find the bottom line on the screen that has any content.
596 * If only the top line has content, returns 0.
597 * If no lines have content, return -1.
599 static int find_last_nonempty_line(Terminal
* term
, tree234
* screen
)
602 for (i
= count234(screen
) - 1; i
>= 0; i
--) {
603 unsigned long *line
= index234(screen
, i
);
606 for (j
= 0; j
< cols
; j
++) {
607 if (line
[j
+ 1] != term
->erase_char
) break;
609 if (j
!= cols
) break;
615 * Swap screens. If `reset' is TRUE and we have been asked to
616 * switch to the alternate screen, we must bring most of its
617 * configuration from the main screen and erase the contents of the
618 * alternate screen completely. (This is even true if we're already
619 * on it! Blame xterm.)
621 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
627 reset
= FALSE
; /* do no weird resetting if which==0 */
629 if (which
!= term
->alt_which
) {
630 term
->alt_which
= which
;
632 ttr
= term
->alt_screen
;
633 term
->alt_screen
= term
->screen
;
635 term
->alt_sblines
= find_last_nonempty_line(term
, term
->alt_screen
) + 1;
637 if (!reset
&& !keep_cur_pos
)
638 term
->curs
.x
= term
->alt_x
;
641 if (!reset
&& !keep_cur_pos
)
642 term
->curs
.y
= term
->alt_y
;
645 if (!reset
) term
->marg_t
= term
->alt_t
;
648 if (!reset
) term
->marg_b
= term
->alt_b
;
651 if (!reset
) term
->dec_om
= term
->alt_om
;
654 if (!reset
) term
->wrap
= term
->alt_wrap
;
657 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
660 if (!reset
) term
->insert
= term
->alt_ins
;
663 if (!reset
) term
->cset
= term
->alt_cset
;
666 if (!reset
) term
->utf
= term
->alt_utf
;
669 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
670 term
->alt_sco_acs
= t
;
673 if (reset
&& term
->screen
) {
675 * Yes, this _is_ supposed to honour background-colour-erase.
677 erase_lots(term
, FALSE
, TRUE
, TRUE
);
681 * This might not be possible if we're called during
689 * Update the scroll bar.
691 static void update_sbar(Terminal
*term
)
693 int nscroll
= sblines(term
);
694 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
695 nscroll
+ term
->disptop
, term
->rows
);
699 * Check whether the region bounded by the two pointers intersects
700 * the scroll region, and de-select the on-screen selection if so.
702 static void check_selection(Terminal
*term
, pos from
, pos to
)
704 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
709 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
710 * for backward.) `sb' is TRUE if the scrolling is permitted to
711 * affect the scrollback buffer.
713 * NB this function invalidates all pointers into lines of the
714 * screen data structures. In particular, you MUST call fix_cpos
715 * after calling scroll() and before doing anything else that
716 * uses the cpos shortcut pointer.
718 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
720 unsigned long *line
, *line2
;
721 int i
, seltop
, olddisptop
, shift
;
723 if (topline
!= 0 || term
->alt_which
!= 0)
726 olddisptop
= term
->disptop
;
730 line
= delpos234(term
->screen
, botline
);
731 line
= resizeline(line
, term
->cols
);
732 for (i
= 0; i
< term
->cols
; i
++)
733 line
[i
+ 1] = term
->erase_char
;
734 line
[term
->cols
+ 1] = 0;
735 addpos234(term
->screen
, line
, topline
);
737 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
739 if (term
->selstart
.y
> botline
) {
740 term
->selstart
.y
= botline
;
741 term
->selstart
.x
= 0;
744 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
746 if (term
->selend
.y
> botline
) {
747 term
->selend
.y
= botline
;
756 line
= delpos234(term
->screen
, topline
);
757 if (sb
&& term
->savelines
> 0) {
758 int sblen
= sblines(term
);
760 * We must add this line to the scrollback. We'll
761 * remove a line from the top of the scrollback to
762 * replace it, or allocate a new one if the
763 * scrollback isn't full.
765 if (sblen
== term
->savelines
) {
766 sblen
--, line2
= delpos234(term
->scrollback
, 0);
768 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
769 line2
[0] = term
->cols
;
771 addpos234(term
->scrollback
, line
, sblen
);
775 * If the user is currently looking at part of the
776 * scrollback, and they haven't enabled any options
777 * that are going to reset the scrollback as a
778 * result of this movement, then the chances are
779 * they'd like to keep looking at the same line. So
780 * we move their viewpoint at the same rate as the
781 * scroll, at least until their viewpoint hits the
782 * top end of the scrollback buffer, at which point
783 * we don't have the choice any more.
785 * Thanks to Jan Holmen Holsten for the idea and
786 * initial implementation.
788 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
791 line
= resizeline(line
, term
->cols
);
792 for (i
= 0; i
< term
->cols
; i
++)
793 line
[i
+ 1] = term
->erase_char
;
794 line
[term
->cols
+ 1] = LATTR_NORM
;
795 addpos234(term
->screen
, line
, botline
);
798 * If the selection endpoints move into the scrollback,
799 * we keep them moving until they hit the top. However,
800 * of course, if the line _hasn't_ moved into the
801 * scrollback then we don't do this, and cut them off
802 * at the top of the scroll region.
804 * This applies to selstart and selend (for an existing
805 * selection), and also selanchor (for one being
806 * selected as we speak).
808 seltop
= sb ?
-term
->savelines
: topline
;
810 if (term
->selstart
.y
>= seltop
&&
811 term
->selstart
.y
<= botline
) {
813 if (term
->selstart
.y
< seltop
) {
814 term
->selstart
.y
= seltop
;
815 term
->selstart
.x
= 0;
818 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
820 if (term
->selend
.y
< seltop
) {
821 term
->selend
.y
= seltop
;
825 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
827 if (term
->selanchor
.y
< seltop
) {
828 term
->selanchor
.y
= seltop
;
829 term
->selanchor
.x
= 0;
836 #ifdef OPTIMISE_SCROLL
837 shift
+= term
->disptop
- olddisptop
;
838 if (shift
< term
->rows
&& shift
> -term
->rows
&& shift
!= 0)
839 scroll_display(term
, topline
, botline
, shift
);
840 #endif /* OPTIMISE_SCROLL */
843 #ifdef OPTIMISE_SCROLL
845 * Add a scroll of a region on the screen into the pending scroll list.
846 * `lines' is +ve for scrolling forward, -ve for backward.
848 * If the scroll is on the same area as the last scroll in the list,
851 static void save_scroll(Terminal
*term
, int topline
, int botline
, int lines
)
853 struct scrollregion
*newscroll
;
854 if (term
->scrolltail
&&
855 term
->scrolltail
->topline
== topline
&&
856 term
->scrolltail
->botline
== botline
) {
857 term
->scrolltail
->lines
+= lines
;
859 newscroll
= smalloc(sizeof(struct scrollregion
));
860 newscroll
->topline
= topline
;
861 newscroll
->botline
= botline
;
862 newscroll
->lines
= lines
;
863 newscroll
->next
= NULL
;
865 if (!term
->scrollhead
)
866 term
->scrollhead
= newscroll
;
868 term
->scrolltail
->next
= newscroll
;
869 term
->scrolltail
= newscroll
;
874 * Scroll the physical display, and our conception of it in disptext.
876 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
878 unsigned long *start
, *end
;
879 int distance
, size
, i
;
881 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
882 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
883 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
884 size
= end
- start
- distance
;
886 memmove(start
, start
+ distance
, size
* TSIZE
);
887 if (term
->dispcurs
>= start
+ distance
&&
888 term
->dispcurs
<= start
+ distance
+ size
)
889 term
->dispcurs
-= distance
;
890 for (i
= 0; i
< distance
; i
++)
891 (start
+ size
)[i
] |= ATTR_INVALID
;
893 memmove(start
+ distance
, start
, size
* TSIZE
);
894 if (term
->dispcurs
>= start
&& term
->dispcurs
<= start
+ size
)
895 term
->dispcurs
+= distance
;
896 for (i
= 0; i
< distance
; i
++)
897 start
[i
] |= ATTR_INVALID
;
899 save_scroll(term
, topline
, botline
, lines
);
901 #endif /* OPTIMISE_SCROLL */
904 * Move the cursor to a given position, clipping at boundaries. We
905 * may or may not want to clip at the scroll margin: marg_clip is 0
906 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
907 * even _being_ outside the margins.
909 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
916 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
919 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
930 term
->wrapnext
= FALSE
;
934 * Save or restore the cursor and SGR mode.
936 static void save_cursor(Terminal
*term
, int save
)
939 term
->savecurs
= term
->curs
;
940 term
->save_attr
= term
->curr_attr
;
941 term
->save_cset
= term
->cset
;
942 term
->save_utf
= term
->utf
;
943 term
->save_wnext
= term
->wrapnext
;
944 term
->save_csattr
= term
->cset_attr
[term
->cset
];
945 term
->save_sco_acs
= term
->sco_acs
;
947 term
->curs
= term
->savecurs
;
948 /* Make sure the window hasn't shrunk since the save */
949 if (term
->curs
.x
>= term
->cols
)
950 term
->curs
.x
= term
->cols
- 1;
951 if (term
->curs
.y
>= term
->rows
)
952 term
->curs
.y
= term
->rows
- 1;
954 term
->curr_attr
= term
->save_attr
;
955 term
->cset
= term
->save_cset
;
956 term
->utf
= term
->save_utf
;
957 term
->wrapnext
= term
->save_wnext
;
959 * wrapnext might reset to False if the x position is no
960 * longer at the rightmost edge.
962 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
963 term
->wrapnext
= FALSE
;
964 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
965 term
->sco_acs
= term
->save_sco_acs
;
968 term
->erase_char
= (' ' | ATTR_ASCII
|
970 (ATTR_FGMASK
| ATTR_BGMASK
)));
975 * This function is called before doing _anything_ which affects
976 * only part of a line of text. It is used to mark the boundary
977 * between two character positions, and it indicates that some sort
978 * of effect is going to happen on only one side of that boundary.
980 * The effect of this function is to check whether a CJK
981 * double-width character is straddling the boundary, and to remove
982 * it and replace it with two spaces if so. (Of course, one or
983 * other of those spaces is then likely to be replaced with
984 * something else again, as a result of whatever happens next.)
986 * Also, if the boundary is at the right-hand _edge_ of the screen,
987 * it implies something deliberate is being done to the rightmost
988 * column position; hence we must clear LATTR_WRAPPED2.
990 * The input to the function is the coordinates of the _second_
991 * character of the pair.
993 static void check_boundary(Terminal
*term
, int x
, int y
)
995 unsigned long *ldata
;
997 /* Validate input coordinates, just in case. */
998 if (x
== 0 || x
> term
->cols
)
1002 if (x
== term
->cols
) {
1003 ldata
[x
] &= ~LATTR_WRAPPED2
;
1005 if ((ldata
[x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
) {
1006 ldata
[x
-1] = ldata
[x
] =
1007 (ldata
[x
-1] &~ (CHAR_MASK
| CSET_MASK
)) | ATTR_ASCII
| ' ';
1013 * Erase a large portion of the screen: the whole screen, or the
1014 * whole line, or parts thereof.
1016 static void erase_lots(Terminal
*term
,
1017 int line_only
, int from_begin
, int to_end
)
1023 start
.y
= term
->curs
.y
;
1025 end
.y
= term
->curs
.y
+ 1;
1027 erase_lattr
= FALSE
;
1042 if (!from_begin
|| !to_end
)
1043 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1044 check_selection(term
, start
, end
);
1046 /* Clear screen also forces a full window redraw, just in case. */
1047 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
1048 term_invalidate(term
);
1050 if (term
->cfg
.erase_to_scrollback
&&
1051 start
.y
== 0 && start
.x
== 0 && end
.x
== 0 && erase_lattr
) {
1052 /* If it's a whole number of lines, starting at the top, and
1053 * we're fully erasing them, erase by scrolling and keep the
1054 * lines in the scrollback. */
1055 int scrolllines
= end
.y
;
1056 if (end
.y
== term
->rows
) {
1057 /* Shrink until we find a non-empty row.*/
1058 scrolllines
= find_last_nonempty_line(term
, term
->screen
) + 1;
1060 if (scrolllines
> 0)
1061 scroll(term
, 0, scrolllines
- 1, scrolllines
, TRUE
);
1064 unsigned long *ldata
= lineptr(start
.y
);
1065 while (poslt(start
, end
)) {
1066 if (start
.x
== term
->cols
) {
1068 ldata
[start
.x
] &= ~(LATTR_WRAPPED
| LATTR_WRAPPED2
);
1070 ldata
[start
.x
] = LATTR_NORM
;
1072 ldata
[start
.x
] = term
->erase_char
;
1074 if (incpos(start
) && start
.y
< term
->rows
)
1075 ldata
= lineptr(start
.y
);
1081 * Insert or delete characters within the current line. n is +ve if
1082 * insertion is desired, and -ve for deletion.
1084 static void insch(Terminal
*term
, int n
)
1086 int dir
= (n
< 0 ?
-1 : +1);
1089 unsigned long *ldata
;
1091 n
= (n
< 0 ?
-n
: n
);
1092 if (n
> term
->cols
- term
->curs
.x
)
1093 n
= term
->cols
- term
->curs
.x
;
1094 m
= term
->cols
- term
->curs
.x
- n
;
1095 cursplus
.y
= term
->curs
.y
;
1096 cursplus
.x
= term
->curs
.x
+ n
;
1097 check_selection(term
, term
->curs
, cursplus
);
1098 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1100 check_boundary(term
, term
->curs
.x
+ n
, term
->curs
.y
);
1101 ldata
= lineptr(term
->curs
.y
);
1103 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
1105 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
1107 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
1109 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
1114 * Toggle terminal mode `mode' to state `state'. (`query' indicates
1115 * whether the mode is a DEC private one or a normal one.)
1117 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
1119 unsigned long ticks
;
1123 case 1: /* application cursor keys */
1124 term
->app_cursor_keys
= state
;
1126 case 2: /* VT52 mode */
1127 term
->vt52_mode
= !state
;
1128 if (term
->vt52_mode
) {
1129 term
->blink_is_real
= FALSE
;
1130 term
->vt52_bold
= FALSE
;
1132 term
->blink_is_real
= term
->cfg
.blinktext
;
1135 case 3: /* 80/132 columns */
1137 if (!term
->cfg
.no_remote_resize
)
1138 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
1139 term
->reset_132
= state
;
1141 case 5: /* reverse video */
1143 * Toggle reverse video. If we receive an OFF within the
1144 * visual bell timeout period after an ON, we trigger an
1145 * effective visual bell, so that ESC[?5hESC[?5l will
1146 * always be an actually _visible_ visual bell.
1148 ticks
= GETTICKCOUNT();
1149 /* turn off a previous vbell to avoid inconsistencies */
1150 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
1151 term
->in_vbell
= FALSE
;
1152 if (term
->rvideo
&& !state
&& /* we're turning it off... */
1153 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
1154 /* If there's no vbell timeout already, or this one lasts
1155 * longer, replace vbell_timeout with ours. */
1156 if (!term
->in_vbell
||
1157 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
1159 term
->vbell_startpoint
= term
->rvbell_startpoint
;
1160 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
1161 } else if (!term
->rvideo
&& state
) {
1162 /* This is an ON, so we notice the time and save it. */
1163 term
->rvbell_startpoint
= ticks
;
1165 term
->rvideo
= state
;
1166 term
->seen_disp_event
= TRUE
;
1170 case 6: /* DEC origin mode */
1171 term
->dec_om
= state
;
1173 case 7: /* auto wrap */
1176 case 8: /* auto key repeat */
1177 term
->repeat_off
= !state
;
1179 case 10: /* set local edit mode */
1180 term
->term_editing
= state
;
1181 if (term
->ldisc
) /* cause ldisc to notice changes */
1182 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1184 case 25: /* enable/disable cursor */
1185 compatibility2(OTHER
, VT220
);
1186 term
->cursor_on
= state
;
1187 term
->seen_disp_event
= TRUE
;
1189 case 47: /* alternate screen */
1190 compatibility(OTHER
);
1192 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
1195 case 1000: /* xterm mouse 1 */
1196 term
->xterm_mouse
= state ?
1 : 0;
1197 set_raw_mouse_mode(term
->frontend
, state
);
1199 case 1002: /* xterm mouse 2 */
1200 term
->xterm_mouse
= state ?
2 : 0;
1201 set_raw_mouse_mode(term
->frontend
, state
);
1203 case 1047: /* alternate screen */
1204 compatibility(OTHER
);
1206 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
1209 case 1048: /* save/restore cursor */
1210 save_cursor(term
, state
);
1211 if (!state
) term
->seen_disp_event
= TRUE
;
1213 case 1049: /* cursor & alternate screen */
1215 save_cursor(term
, state
);
1216 if (!state
) term
->seen_disp_event
= TRUE
;
1217 compatibility(OTHER
);
1219 swap_screen(term
, term
->cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
1221 save_cursor(term
, state
);
1226 case 4: /* set insert mode */
1227 compatibility(VT102
);
1228 term
->insert
= state
;
1230 case 12: /* set echo mode */
1231 term
->term_echoing
= !state
;
1232 if (term
->ldisc
) /* cause ldisc to notice changes */
1233 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1235 case 20: /* Return sends ... */
1236 term
->cr_lf_return
= state
;
1238 case 34: /* Make cursor BIG */
1239 compatibility2(OTHER
, VT220
);
1240 term
->big_cursor
= !state
;
1245 * Process an OSC sequence: set window title or icon name.
1247 static void do_osc(Terminal
*term
)
1250 while (term
->osc_strlen
--)
1251 term
->wordness
[(unsigned char)
1252 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1254 term
->osc_string
[term
->osc_strlen
] = '\0';
1255 switch (term
->esc_args
[0]) {
1258 if (!term
->cfg
.no_remote_wintitle
)
1259 set_icon(term
->frontend
, term
->osc_string
);
1260 if (term
->esc_args
[0] == 1)
1262 /* fall through: parameter 0 means set both */
1265 if (!term
->cfg
.no_remote_wintitle
)
1266 set_title(term
->frontend
, term
->osc_string
);
1273 * ANSI printing routines.
1275 static void term_print_setup(Terminal
*term
)
1277 bufchain_clear(&term
->printer_buf
);
1278 term
->print_job
= printer_start_job(term
->cfg
.printer
);
1280 static void term_print_flush(Terminal
*term
)
1285 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1286 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1289 printer_job_data(term
->print_job
, data
, len
);
1290 bufchain_consume(&term
->printer_buf
, len
);
1293 static void term_print_finish(Terminal
*term
)
1299 if (!term
->printing
&& !term
->only_printing
)
1300 return; /* we need do nothing */
1302 term_print_flush(term
);
1303 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1304 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1306 if (c
== '\033' || c
== '\233') {
1307 bufchain_consume(&term
->printer_buf
, size
);
1310 printer_job_data(term
->print_job
, &c
, 1);
1311 bufchain_consume(&term
->printer_buf
, 1);
1314 printer_finish_job(term
->print_job
);
1315 term
->print_job
= NULL
;
1316 term
->printing
= term
->only_printing
= FALSE
;
1320 * Remove everything currently in `inbuf' and stick it up on the
1321 * in-memory display. There's a big state machine in here to
1322 * process escape sequences...
1324 void term_out(Terminal
*term
)
1327 unsigned char localbuf
[256], *chars
;
1332 chars
= NULL
; /* placate compiler warnings */
1333 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1337 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1338 if (nchars
> sizeof(localbuf
))
1339 nchars
= sizeof(localbuf
);
1340 memcpy(localbuf
, ret
, nchars
);
1341 bufchain_consume(&term
->inbuf
, nchars
);
1343 assert(chars
!= NULL
);
1349 * Optionally log the session traffic to a file. Useful for
1350 * debugging and possibly also useful for actual logging.
1352 if (term
->cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1353 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1359 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1360 * be able to display 8-bit characters, but I'll let that go 'cause
1365 * If we're printing, add the character to the printer
1368 if (term
->printing
) {
1369 bufchain_add(&term
->printer_buf
, &c
, 1);
1372 * If we're in print-only mode, we use a much simpler
1373 * state machine designed only to recognise the ESC[4i
1374 * termination sequence.
1376 if (term
->only_printing
) {
1378 term
->print_state
= 1;
1379 else if (c
== (unsigned char)'\233')
1380 term
->print_state
= 2;
1381 else if (c
== '[' && term
->print_state
== 1)
1382 term
->print_state
= 2;
1383 else if (c
== '4' && term
->print_state
== 2)
1384 term
->print_state
= 3;
1385 else if (c
== 'i' && term
->print_state
== 3)
1386 term
->print_state
= 4;
1388 term
->print_state
= 0;
1389 if (term
->print_state
== 4) {
1390 term_print_finish(term
);
1396 /* First see about all those translations. */
1397 if (term
->termstate
== TOPLEVEL
) {
1399 switch (term
->utf_state
) {
1402 /* UTF-8 must be stateless so we ignore iso2022. */
1403 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1404 c
= term
->ucsdata
->unitab_ctrl
[c
];
1405 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1407 } else if ((c
& 0xe0) == 0xc0) {
1408 term
->utf_size
= term
->utf_state
= 1;
1409 term
->utf_char
= (c
& 0x1f);
1410 } else if ((c
& 0xf0) == 0xe0) {
1411 term
->utf_size
= term
->utf_state
= 2;
1412 term
->utf_char
= (c
& 0x0f);
1413 } else if ((c
& 0xf8) == 0xf0) {
1414 term
->utf_size
= term
->utf_state
= 3;
1415 term
->utf_char
= (c
& 0x07);
1416 } else if ((c
& 0xfc) == 0xf8) {
1417 term
->utf_size
= term
->utf_state
= 4;
1418 term
->utf_char
= (c
& 0x03);
1419 } else if ((c
& 0xfe) == 0xfc) {
1420 term
->utf_size
= term
->utf_state
= 5;
1421 term
->utf_char
= (c
& 0x01);
1432 if ((c
& 0xC0) != 0x80) {
1435 term
->utf_state
= 0;
1438 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1439 if (--term
->utf_state
)
1444 /* Is somebody trying to be evil! */
1446 (c
< 0x800 && term
->utf_size
>= 2) ||
1447 (c
< 0x10000 && term
->utf_size
>= 3) ||
1448 (c
< 0x200000 && term
->utf_size
>= 4) ||
1449 (c
< 0x4000000 && term
->utf_size
>= 5))
1452 /* Unicode line separator and paragraph separator are CR-LF */
1453 if (c
== 0x2028 || c
== 0x2029)
1456 /* High controls are probably a Baaad idea too. */
1460 /* The UTF-16 surrogates are not nice either. */
1461 /* The standard give the option of decoding these:
1462 * I don't want to! */
1463 if (c
>= 0xD800 && c
< 0xE000)
1466 /* ISO 10646 characters now limited to UTF-16 range. */
1470 /* This is currently a TagPhobic application.. */
1471 if (c
>= 0xE0000 && c
<= 0xE007F)
1474 /* U+FEFF is best seen as a null. */
1477 /* But U+FFFE is an error. */
1478 if (c
== 0xFFFE || c
== 0xFFFF)
1481 /* Oops this is a 16bit implementation */
1486 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1487 else if(term
->sco_acs
&&
1488 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1490 if (term
->sco_acs
== 2) c
|= 0x80;
1493 switch (term
->cset_attr
[term
->cset
]) {
1495 * Linedraw characters are different from 'ESC ( B'
1496 * only for a small range. For ones outside that
1497 * range, make sure we use the same font as well as
1498 * the same encoding.
1501 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1502 c
= term
->ucsdata
->unitab_ctrl
[c
];
1504 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1508 /* If UK-ASCII, make the '#' a LineDraw Pound */
1510 c
= '}' | ATTR_LINEDRW
;
1513 /*FALLTHROUGH*/ case ATTR_ASCII
:
1514 if (term
->ucsdata
->unitab_ctrl
[c
] != 0xFF)
1515 c
= term
->ucsdata
->unitab_ctrl
[c
];
1517 c
= ((unsigned char) c
) | ATTR_ASCII
;
1520 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1526 /* How about C1 controls ? */
1527 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1528 !term
->vt52_mode
&& has_compat(VT220
)) {
1529 term
->termstate
= SEEN_ESC
;
1530 term
->esc_query
= FALSE
;
1531 c
= '@' + (c
& 0x1F);
1534 /* Or the GL control. */
1535 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1536 if (term
->curs
.x
&& !term
->wrapnext
)
1538 term
->wrapnext
= FALSE
;
1540 if (!term
->cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1541 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1543 /* Or normal C0 controls. */
1544 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1546 case '\005': /* terminal type query */
1547 /* Strictly speaking this is VT100 but a VT100 defaults to
1548 * no response. Other terminals respond at their option.
1550 * Don't put a CR in the default string as this tends to
1551 * upset some weird software.
1553 * An xterm returns "xterm" (5 characters)
1555 compatibility(ANSIMIN
);
1557 char abuf
[256], *s
, *d
;
1559 for (s
= term
->cfg
.answerback
, d
= abuf
; *s
; s
++) {
1561 if (*s
>= 'a' && *s
<= 'z')
1562 *d
++ = (*s
- ('a' - 1));
1563 else if ((*s
>= '@' && *s
<= '_') ||
1564 *s
== '?' || (*s
& 0x80))
1569 } else if (*s
== '^') {
1574 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1580 struct beeptime
*newbeep
;
1581 unsigned long ticks
;
1583 ticks
= GETTICKCOUNT();
1585 if (!term
->beep_overloaded
) {
1586 newbeep
= smalloc(sizeof(struct beeptime
));
1587 newbeep
->ticks
= ticks
;
1588 newbeep
->next
= NULL
;
1589 if (!term
->beephead
)
1590 term
->beephead
= newbeep
;
1592 term
->beeptail
->next
= newbeep
;
1593 term
->beeptail
= newbeep
;
1598 * Throw out any beeps that happened more than
1601 while (term
->beephead
&&
1602 term
->beephead
->ticks
< ticks
- term
->cfg
.bellovl_t
) {
1603 struct beeptime
*tmp
= term
->beephead
;
1604 term
->beephead
= tmp
->next
;
1606 if (!term
->beephead
)
1607 term
->beeptail
= NULL
;
1611 if (term
->cfg
.bellovl
&& term
->beep_overloaded
&&
1612 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
.bellovl_s
) {
1614 * If we're currently overloaded and the
1615 * last beep was more than s seconds ago,
1616 * leave overload mode.
1618 term
->beep_overloaded
= FALSE
;
1619 } else if (term
->cfg
.bellovl
&& !term
->beep_overloaded
&&
1620 term
->nbeeps
>= term
->cfg
.bellovl_n
) {
1622 * Now, if we have n or more beeps
1623 * remaining in the queue, go into overload
1626 term
->beep_overloaded
= TRUE
;
1628 term
->lastbeep
= ticks
;
1631 * Perform an actual beep if we're not overloaded.
1633 if (!term
->cfg
.bellovl
|| !term
->beep_overloaded
) {
1634 beep(term
->frontend
, term
->cfg
.beep
);
1635 if (term
->cfg
.beep
== BELL_VISUAL
) {
1636 term
->in_vbell
= TRUE
;
1637 term
->vbell_startpoint
= ticks
;
1645 if (term
->curs
.x
== 0 &&
1646 (term
->curs
.y
== 0 || term
->wrap
== 0))
1648 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1649 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1650 else if (term
->wrapnext
)
1651 term
->wrapnext
= FALSE
;
1655 term
->seen_disp_event
= TRUE
;
1658 compatibility(VT100
);
1662 compatibility(VT100
);
1666 if (term
->vt52_mode
)
1667 term
->termstate
= VT52_ESC
;
1669 compatibility(ANSIMIN
);
1670 term
->termstate
= SEEN_ESC
;
1671 term
->esc_query
= FALSE
;
1676 term
->wrapnext
= FALSE
;
1678 term
->seen_disp_event
= TRUE
;
1679 term
->paste_hold
= 0;
1681 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1684 if (has_compat(SCOANSI
)) {
1685 move(term
, 0, 0, 0);
1686 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1688 term
->wrapnext
= FALSE
;
1689 term
->seen_disp_event
= 1;
1693 compatibility(VT100
);
1695 if (term
->curs
.y
== term
->marg_b
)
1696 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1697 else if (term
->curs
.y
< term
->rows
- 1)
1699 if (term
->cfg
.lfhascr
)
1702 term
->wrapnext
= FALSE
;
1703 term
->seen_disp_event
= 1;
1704 term
->paste_hold
= 0;
1706 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1710 pos old_curs
= term
->curs
;
1711 unsigned long *ldata
= lineptr(term
->curs
.y
);
1715 } while (term
->curs
.x
< term
->cols
- 1 &&
1716 !term
->tabs
[term
->curs
.x
]);
1718 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1719 if (term
->curs
.x
>= term
->cols
/ 2)
1720 term
->curs
.x
= term
->cols
/ 2 - 1;
1722 if (term
->curs
.x
>= term
->cols
)
1723 term
->curs
.x
= term
->cols
- 1;
1727 check_selection(term
, old_curs
, term
->curs
);
1729 term
->seen_disp_event
= TRUE
;
1733 switch (term
->termstate
) {
1735 /* Only graphic characters get this far;
1736 * ctrls are stripped above */
1737 if (term
->wrapnext
&& term
->wrap
) {
1738 term
->cpos
[1] |= LATTR_WRAPPED
;
1739 if (term
->curs
.y
== term
->marg_b
)
1740 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1741 else if (term
->curs
.y
< term
->rows
- 1)
1745 term
->wrapnext
= FALSE
;
1749 if (term
->selstate
!= NO_SELECTION
) {
1750 pos cursplus
= term
->curs
;
1752 check_selection(term
, term
->curs
, cursplus
);
1754 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1756 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1762 width
= wcwidth((wchar_t) c
);
1766 * If we're about to display a double-width
1767 * character starting in the rightmost
1768 * column, then we do something special
1769 * instead. We must print a space in the
1770 * last column of the screen, then wrap;
1771 * and we also set LATTR_WRAPPED2 which
1772 * instructs subsequent cut-and-pasting not
1773 * only to splice this line to the one
1774 * after it, but to ignore the space in the
1775 * last character position as well.
1776 * (Because what was actually output to the
1777 * terminal was presumably just a sequence
1778 * of CJK characters, and we don't want a
1779 * space to be pasted in the middle of
1780 * those just because they had the
1781 * misfortune to start in the wrong parity
1782 * column. xterm concurs.)
1784 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1785 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1786 if (term
->curs
.x
== term
->cols
-1) {
1787 *term
->cpos
++ = ATTR_ASCII
| ' ' | term
->curr_attr
;
1788 *term
->cpos
|= LATTR_WRAPPED
| LATTR_WRAPPED2
;
1789 if (term
->curs
.y
== term
->marg_b
)
1790 scroll(term
, term
->marg_t
, term
->marg_b
,
1792 else if (term
->curs
.y
< term
->rows
- 1)
1796 /* Now we must check_boundary again, of course. */
1797 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1798 check_boundary(term
, term
->curs
.x
+2, term
->curs
.y
);
1800 *term
->cpos
++ = c
| term
->curr_attr
;
1801 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1805 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
1806 check_boundary(term
, term
->curs
.x
+1, term
->curs
.y
);
1807 *term
->cpos
++ = c
| term
->curr_attr
;
1814 if (term
->curs
.x
== term
->cols
) {
1817 term
->wrapnext
= TRUE
;
1818 if (term
->wrap
&& term
->vt52_mode
) {
1819 term
->cpos
[1] |= LATTR_WRAPPED
;
1820 if (term
->curs
.y
== term
->marg_b
)
1821 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1822 else if (term
->curs
.y
< term
->rows
- 1)
1826 term
->wrapnext
= FALSE
;
1829 term
->seen_disp_event
= 1;
1834 * This state is virtually identical to SEEN_ESC, with the
1835 * exception that we have an OSC sequence in the pipeline,
1836 * and _if_ we see a backslash, we process it.
1840 term
->termstate
= TOPLEVEL
;
1843 /* else fall through */
1845 if (c
>= ' ' && c
<= '/') {
1846 if (term
->esc_query
)
1847 term
->esc_query
= -1;
1849 term
->esc_query
= c
;
1852 term
->termstate
= TOPLEVEL
;
1853 switch (ANSI(c
, term
->esc_query
)) {
1854 case '[': /* enter CSI mode */
1855 term
->termstate
= SEEN_CSI
;
1856 term
->esc_nargs
= 1;
1857 term
->esc_args
[0] = ARG_DEFAULT
;
1858 term
->esc_query
= FALSE
;
1860 case ']': /* xterm escape sequences */
1861 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1862 compatibility(OTHER
);
1863 term
->termstate
= SEEN_OSC
;
1864 term
->esc_args
[0] = 0;
1866 case '7': /* save cursor */
1867 compatibility(VT100
);
1868 save_cursor(term
, TRUE
);
1870 case '8': /* restore cursor */
1871 compatibility(VT100
);
1872 save_cursor(term
, FALSE
);
1873 term
->seen_disp_event
= TRUE
;
1876 compatibility(VT100
);
1877 term
->app_keypad_keys
= TRUE
;
1880 compatibility(VT100
);
1881 term
->app_keypad_keys
= FALSE
;
1883 case 'D': /* exactly equivalent to LF */
1884 compatibility(VT100
);
1885 if (term
->curs
.y
== term
->marg_b
)
1886 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1887 else if (term
->curs
.y
< term
->rows
- 1)
1890 term
->wrapnext
= FALSE
;
1891 term
->seen_disp_event
= TRUE
;
1893 case 'E': /* exactly equivalent to CR-LF */
1894 compatibility(VT100
);
1896 if (term
->curs
.y
== term
->marg_b
)
1897 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1898 else if (term
->curs
.y
< term
->rows
- 1)
1901 term
->wrapnext
= FALSE
;
1902 term
->seen_disp_event
= TRUE
;
1904 case 'M': /* reverse index - backwards LF */
1905 compatibility(VT100
);
1906 if (term
->curs
.y
== term
->marg_t
)
1907 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1908 else if (term
->curs
.y
> 0)
1911 term
->wrapnext
= FALSE
;
1912 term
->seen_disp_event
= TRUE
;
1914 case 'Z': /* terminal type query */
1915 compatibility(VT100
);
1917 ldisc_send(term
->ldisc
, term
->id_string
,
1918 strlen(term
->id_string
), 0);
1920 case 'c': /* restore power-on settings */
1921 compatibility(VT100
);
1923 if (term
->ldisc
) /* cause ldisc to notice changes */
1924 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1925 if (term
->reset_132
) {
1926 if (!term
->cfg
.no_remote_resize
)
1927 request_resize(term
->frontend
, 80, term
->rows
);
1928 term
->reset_132
= 0;
1932 term
->seen_disp_event
= TRUE
;
1934 case 'H': /* set a tab */
1935 compatibility(VT100
);
1936 term
->tabs
[term
->curs
.x
] = TRUE
;
1939 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1940 compatibility(VT100
);
1942 unsigned long *ldata
;
1946 for (i
= 0; i
< term
->rows
; i
++) {
1948 for (j
= 0; j
< term
->cols
; j
++)
1949 ldata
[j
] = ATTR_DEFAULT
| 'E';
1950 ldata
[term
->cols
] = 0;
1953 term
->seen_disp_event
= TRUE
;
1954 scrtop
.x
= scrtop
.y
= 0;
1956 scrbot
.y
= term
->rows
;
1957 check_selection(term
, scrtop
, scrbot
);
1961 case ANSI('3', '#'):
1962 case ANSI('4', '#'):
1963 case ANSI('5', '#'):
1964 case ANSI('6', '#'):
1965 compatibility(VT100
);
1967 unsigned long nlattr
;
1968 unsigned long *ldata
;
1969 switch (ANSI(c
, term
->esc_query
)) {
1970 case ANSI('3', '#'):
1973 case ANSI('4', '#'):
1976 case ANSI('5', '#'):
1977 nlattr
= LATTR_NORM
;
1979 default: /* spiritually case ANSI('6', '#'): */
1980 nlattr
= LATTR_WIDE
;
1983 ldata
= lineptr(term
->curs
.y
);
1984 ldata
[term
->cols
] &= ~LATTR_MODE
;
1985 ldata
[term
->cols
] |= nlattr
;
1989 case ANSI('A', '('):
1990 compatibility(VT100
);
1991 if (!term
->cfg
.no_remote_charset
)
1992 term
->cset_attr
[0] = ATTR_GBCHR
;
1994 case ANSI('B', '('):
1995 compatibility(VT100
);
1996 if (!term
->cfg
.no_remote_charset
)
1997 term
->cset_attr
[0] = ATTR_ASCII
;
1999 case ANSI('0', '('):
2000 compatibility(VT100
);
2001 if (!term
->cfg
.no_remote_charset
)
2002 term
->cset_attr
[0] = ATTR_LINEDRW
;
2004 case ANSI('U', '('):
2005 compatibility(OTHER
);
2006 if (!term
->cfg
.no_remote_charset
)
2007 term
->cset_attr
[0] = ATTR_SCOACS
;
2010 case ANSI('A', ')'):
2011 compatibility(VT100
);
2012 if (!term
->cfg
.no_remote_charset
)
2013 term
->cset_attr
[1] = ATTR_GBCHR
;
2015 case ANSI('B', ')'):
2016 compatibility(VT100
);
2017 if (!term
->cfg
.no_remote_charset
)
2018 term
->cset_attr
[1] = ATTR_ASCII
;
2020 case ANSI('0', ')'):
2021 compatibility(VT100
);
2022 if (!term
->cfg
.no_remote_charset
)
2023 term
->cset_attr
[1] = ATTR_LINEDRW
;
2025 case ANSI('U', ')'):
2026 compatibility(OTHER
);
2027 if (!term
->cfg
.no_remote_charset
)
2028 term
->cset_attr
[1] = ATTR_SCOACS
;
2031 case ANSI('8', '%'): /* Old Linux code */
2032 case ANSI('G', '%'):
2033 compatibility(OTHER
);
2034 if (!term
->cfg
.no_remote_charset
)
2037 case ANSI('@', '%'):
2038 compatibility(OTHER
);
2039 if (!term
->cfg
.no_remote_charset
)
2045 term
->termstate
= TOPLEVEL
; /* default */
2047 if (term
->esc_nargs
<= ARGS_MAX
) {
2048 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
2049 term
->esc_args
[term
->esc_nargs
- 1] = 0;
2050 term
->esc_args
[term
->esc_nargs
- 1] =
2051 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
2053 term
->termstate
= SEEN_CSI
;
2054 } else if (c
== ';') {
2055 if (++term
->esc_nargs
<= ARGS_MAX
)
2056 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
2057 term
->termstate
= SEEN_CSI
;
2058 } else if (c
< '@') {
2059 if (term
->esc_query
)
2060 term
->esc_query
= -1;
2062 term
->esc_query
= TRUE
;
2064 term
->esc_query
= c
;
2065 term
->termstate
= SEEN_CSI
;
2067 switch (ANSI(c
, term
->esc_query
)) {
2068 case 'A': /* move up N lines */
2069 move(term
, term
->curs
.x
,
2070 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2071 term
->seen_disp_event
= TRUE
;
2073 case 'e': /* move down N lines */
2074 compatibility(ANSI
);
2077 move(term
, term
->curs
.x
,
2078 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2079 term
->seen_disp_event
= TRUE
;
2081 case ANSI('c', '>'): /* report xterm version */
2082 compatibility(OTHER
);
2083 /* this reports xterm version 136 so that VIM can
2084 use the drag messages from the mouse reporting */
2086 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
2088 case 'a': /* move right N cols */
2089 compatibility(ANSI
);
2092 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
2094 term
->seen_disp_event
= TRUE
;
2096 case 'D': /* move left N cols */
2097 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
2099 term
->seen_disp_event
= TRUE
;
2101 case 'E': /* move down N lines and CR */
2102 compatibility(ANSI
);
2104 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
2105 term
->seen_disp_event
= TRUE
;
2107 case 'F': /* move up N lines and CR */
2108 compatibility(ANSI
);
2110 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
2111 term
->seen_disp_event
= TRUE
;
2114 case '`': /* set horizontal posn */
2115 compatibility(ANSI
);
2116 move(term
, def(term
->esc_args
[0], 1) - 1,
2118 term
->seen_disp_event
= TRUE
;
2120 case 'd': /* set vertical posn */
2121 compatibility(ANSI
);
2122 move(term
, term
->curs
.x
,
2123 ((term
->dec_om ? term
->marg_t
: 0) +
2124 def(term
->esc_args
[0], 1) - 1),
2125 (term
->dec_om ?
2 : 0));
2126 term
->seen_disp_event
= TRUE
;
2129 case 'f': /* set horz and vert posns at once */
2130 if (term
->esc_nargs
< 2)
2131 term
->esc_args
[1] = ARG_DEFAULT
;
2132 move(term
, def(term
->esc_args
[1], 1) - 1,
2133 ((term
->dec_om ? term
->marg_t
: 0) +
2134 def(term
->esc_args
[0], 1) - 1),
2135 (term
->dec_om ?
2 : 0));
2136 term
->seen_disp_event
= TRUE
;
2138 case 'J': /* erase screen or parts of it */
2140 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2143 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
2146 term
->seen_disp_event
= TRUE
;
2148 case 'K': /* erase line or parts of it */
2150 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
2153 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
2155 term
->seen_disp_event
= TRUE
;
2157 case 'L': /* insert lines */
2158 compatibility(VT102
);
2159 if (term
->curs
.y
<= term
->marg_b
)
2160 scroll(term
, term
->curs
.y
, term
->marg_b
,
2161 -def(term
->esc_args
[0], 1), FALSE
);
2163 term
->seen_disp_event
= TRUE
;
2165 case 'M': /* delete lines */
2166 compatibility(VT102
);
2167 if (term
->curs
.y
<= term
->marg_b
)
2168 scroll(term
, term
->curs
.y
, term
->marg_b
,
2169 def(term
->esc_args
[0], 1),
2172 term
->seen_disp_event
= TRUE
;
2174 case '@': /* insert chars */
2175 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
2176 compatibility(VT102
);
2177 insch(term
, def(term
->esc_args
[0], 1));
2178 term
->seen_disp_event
= TRUE
;
2180 case 'P': /* delete chars */
2181 compatibility(VT102
);
2182 insch(term
, -def(term
->esc_args
[0], 1));
2183 term
->seen_disp_event
= TRUE
;
2185 case 'c': /* terminal type query */
2186 compatibility(VT100
);
2187 /* This is the response for a VT102 */
2189 ldisc_send(term
->ldisc
, term
->id_string
,
2190 strlen(term
->id_string
), 0);
2192 case 'n': /* cursor position query */
2194 if (term
->esc_args
[0] == 6) {
2196 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
2198 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
2199 } else if (term
->esc_args
[0] == 5) {
2200 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
2204 case 'h': /* toggle modes to high */
2206 compatibility(VT100
);
2209 for (i
= 0; i
< term
->esc_nargs
; i
++)
2210 toggle_mode(term
, term
->esc_args
[i
],
2211 term
->esc_query
, TRUE
);
2216 compatibility(VT100
);
2218 if (term
->esc_nargs
!= 1) break;
2219 if (term
->esc_args
[0] == 5 && *term
->cfg
.printer
) {
2220 term
->printing
= TRUE
;
2221 term
->only_printing
= !term
->esc_query
;
2222 term
->print_state
= 0;
2223 term_print_setup(term
);
2224 } else if (term
->esc_args
[0] == 4 &&
2226 term_print_finish(term
);
2230 case 'l': /* toggle modes to low */
2232 compatibility(VT100
);
2235 for (i
= 0; i
< term
->esc_nargs
; i
++)
2236 toggle_mode(term
, term
->esc_args
[i
],
2237 term
->esc_query
, FALSE
);
2240 case 'g': /* clear tabs */
2241 compatibility(VT100
);
2242 if (term
->esc_nargs
== 1) {
2243 if (term
->esc_args
[0] == 0) {
2244 term
->tabs
[term
->curs
.x
] = FALSE
;
2245 } else if (term
->esc_args
[0] == 3) {
2247 for (i
= 0; i
< term
->cols
; i
++)
2248 term
->tabs
[i
] = FALSE
;
2252 case 'r': /* set scroll margins */
2253 compatibility(VT100
);
2254 if (term
->esc_nargs
<= 2) {
2256 top
= def(term
->esc_args
[0], 1) - 1;
2257 bot
= (term
->esc_nargs
<= 1
2258 || term
->esc_args
[1] == 0 ?
2260 def(term
->esc_args
[1], term
->rows
)) - 1;
2261 if (bot
>= term
->rows
)
2262 bot
= term
->rows
- 1;
2263 /* VTTEST Bug 9 - if region is less than 2 lines
2264 * don't change region.
2266 if (bot
- top
> 0) {
2271 * I used to think the cursor should be
2272 * placed at the top of the newly marginned
2273 * area. Apparently not: VMS TPU falls over
2276 * Well actually it should for
2279 term
->curs
.y
= (term
->dec_om ?
2282 term
->seen_disp_event
= TRUE
;
2286 case 'm': /* set graphics rendition */
2289 * A VT100 without the AVO only had one
2290 * attribute, either underline or
2291 * reverse video depending on the
2292 * cursor type, this was selected by
2296 * This is sometimes DIM, eg on the
2299 * This is sometimes INVIS various ANSI.
2301 * This like 22 disables BOLD, DIM and INVIS
2303 * The ANSI colours appear on any
2304 * terminal that has colour (obviously)
2305 * but the interaction between sgr0 and
2306 * the colours varies but is usually
2307 * related to the background colour
2308 * erase item. The interaction between
2309 * colour attributes and the mono ones
2310 * is also very implementation
2313 * The 39 and 49 attributes are likely
2314 * to be unimplemented.
2317 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2318 switch (def(term
->esc_args
[i
], 0)) {
2319 case 0: /* restore defaults */
2320 term
->curr_attr
= ATTR_DEFAULT
;
2322 case 1: /* enable bold */
2323 compatibility(VT100AVO
);
2324 term
->curr_attr
|= ATTR_BOLD
;
2326 case 21: /* (enable double underline) */
2327 compatibility(OTHER
);
2328 case 4: /* enable underline */
2329 compatibility(VT100AVO
);
2330 term
->curr_attr
|= ATTR_UNDER
;
2332 case 5: /* enable blink */
2333 compatibility(VT100AVO
);
2334 term
->curr_attr
|= ATTR_BLINK
;
2336 case 7: /* enable reverse video */
2337 term
->curr_attr
|= ATTR_REVERSE
;
2339 case 10: /* SCO acs off */
2340 compatibility(SCOANSI
);
2341 if (term
->cfg
.no_remote_charset
) break;
2342 term
->sco_acs
= 0; break;
2343 case 11: /* SCO acs on */
2344 compatibility(SCOANSI
);
2345 if (term
->cfg
.no_remote_charset
) break;
2346 term
->sco_acs
= 1; break;
2347 case 12: /* SCO acs on, |0x80 */
2348 compatibility(SCOANSI
);
2349 if (term
->cfg
.no_remote_charset
) break;
2350 term
->sco_acs
= 2; break;
2351 case 22: /* disable bold */
2352 compatibility2(OTHER
, VT220
);
2353 term
->curr_attr
&= ~ATTR_BOLD
;
2355 case 24: /* disable underline */
2356 compatibility2(OTHER
, VT220
);
2357 term
->curr_attr
&= ~ATTR_UNDER
;
2359 case 25: /* disable blink */
2360 compatibility2(OTHER
, VT220
);
2361 term
->curr_attr
&= ~ATTR_BLINK
;
2363 case 27: /* disable reverse video */
2364 compatibility2(OTHER
, VT220
);
2365 term
->curr_attr
&= ~ATTR_REVERSE
;
2376 term
->curr_attr
&= ~ATTR_FGMASK
;
2378 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2388 /* xterm-style bright foreground */
2389 term
->curr_attr
&= ~ATTR_FGMASK
;
2391 ((term
->esc_args
[i
] - 90 + 16)
2394 case 39: /* default-foreground */
2395 term
->curr_attr
&= ~ATTR_FGMASK
;
2396 term
->curr_attr
|= ATTR_DEFFG
;
2407 term
->curr_attr
&= ~ATTR_BGMASK
;
2409 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2419 /* xterm-style bright background */
2420 term
->curr_attr
&= ~ATTR_BGMASK
;
2422 ((term
->esc_args
[i
] - 100 + 16)
2425 case 49: /* default-background */
2426 term
->curr_attr
&= ~ATTR_BGMASK
;
2427 term
->curr_attr
|= ATTR_DEFBG
;
2432 term
->erase_char
= (' ' | ATTR_ASCII
|
2438 case 's': /* save cursor */
2439 save_cursor(term
, TRUE
);
2441 case 'u': /* restore cursor */
2442 save_cursor(term
, FALSE
);
2443 term
->seen_disp_event
= TRUE
;
2445 case 't': /* set page size - ie window height */
2447 * VT340/VT420 sequence DECSLPP, DEC only allows values
2448 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2449 * illegal values (eg first arg 1..9) for window changing
2452 if (term
->esc_nargs
<= 1
2453 && (term
->esc_args
[0] < 1 ||
2454 term
->esc_args
[0] >= 24)) {
2455 compatibility(VT340TEXT
);
2456 if (!term
->cfg
.no_remote_resize
)
2457 request_resize(term
->frontend
, term
->cols
,
2458 def(term
->esc_args
[0], 24));
2460 } else if (term
->esc_nargs
>= 1 &&
2461 term
->esc_args
[0] >= 1 &&
2462 term
->esc_args
[0] < 24) {
2463 compatibility(OTHER
);
2465 switch (term
->esc_args
[0]) {
2469 set_iconic(term
->frontend
, FALSE
);
2472 set_iconic(term
->frontend
, TRUE
);
2475 if (term
->esc_nargs
>= 3) {
2476 if (!term
->cfg
.no_remote_resize
)
2477 move_window(term
->frontend
,
2478 def(term
->esc_args
[1], 0),
2479 def(term
->esc_args
[2], 0));
2483 /* We should resize the window to a given
2484 * size in pixels here, but currently our
2485 * resizing code isn't healthy enough to
2490 set_zorder(term
->frontend
, TRUE
);
2493 /* move to bottom */
2494 set_zorder(term
->frontend
, FALSE
);
2497 refresh_window(term
->frontend
);
2500 if (term
->esc_nargs
>= 3) {
2501 if (!term
->cfg
.no_remote_resize
)
2502 request_resize(term
->frontend
,
2503 def(term
->esc_args
[2], term
->cfg
.width
),
2504 def(term
->esc_args
[1], term
->cfg
.height
));
2508 if (term
->esc_nargs
>= 2)
2509 set_zoomed(term
->frontend
,
2515 ldisc_send(term
->ldisc
,
2516 is_iconic(term
->frontend
) ?
2517 "\033[1t" : "\033[2t", 4, 0);
2521 get_window_pos(term
->frontend
, &x
, &y
);
2522 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2523 ldisc_send(term
->ldisc
, buf
, len
, 0);
2528 get_window_pixels(term
->frontend
, &x
, &y
);
2529 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2530 ldisc_send(term
->ldisc
, buf
, len
, 0);
2535 len
= sprintf(buf
, "\033[8;%d;%dt",
2536 term
->rows
, term
->cols
);
2537 ldisc_send(term
->ldisc
, buf
, len
, 0);
2542 * Hmmm. Strictly speaking we
2543 * should return `the size of the
2544 * screen in characters', but
2545 * that's not easy: (a) window
2546 * furniture being what it is it's
2547 * hard to compute, and (b) in
2548 * resize-font mode maximising the
2549 * window wouldn't change the
2550 * number of characters. *shrug*. I
2551 * think we'll ignore it for the
2552 * moment and see if anyone
2553 * complains, and then ask them
2554 * what they would like it to do.
2559 p
= get_window_title(term
->frontend
, TRUE
);
2561 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2562 ldisc_send(term
->ldisc
, p
, len
, 0);
2563 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2568 p
= get_window_title(term
->frontend
,FALSE
);
2570 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2571 ldisc_send(term
->ldisc
, p
, len
, 0);
2572 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2579 compatibility(SCOANSI
);
2580 scroll(term
, term
->marg_t
, term
->marg_b
,
2581 def(term
->esc_args
[0], 1), TRUE
);
2583 term
->wrapnext
= FALSE
;
2584 term
->seen_disp_event
= TRUE
;
2587 compatibility(SCOANSI
);
2588 scroll(term
, term
->marg_t
, term
->marg_b
,
2589 -def(term
->esc_args
[0], 1), TRUE
);
2591 term
->wrapnext
= FALSE
;
2592 term
->seen_disp_event
= TRUE
;
2594 case ANSI('|', '*'):
2595 /* VT420 sequence DECSNLS
2596 * Set number of lines on screen
2597 * VT420 uses VGA like hardware and can support any size in
2598 * reasonable range (24..49 AIUI) with no default specified.
2600 compatibility(VT420
);
2601 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2602 if (!term
->cfg
.no_remote_resize
)
2603 request_resize(term
->frontend
, term
->cols
,
2604 def(term
->esc_args
[0],
2609 case ANSI('|', '$'):
2610 /* VT340/VT420 sequence DECSCPP
2611 * Set number of columns per page
2612 * Docs imply range is only 80 or 132, but I'll allow any.
2614 compatibility(VT340TEXT
);
2615 if (term
->esc_nargs
<= 1) {
2616 if (!term
->cfg
.no_remote_resize
)
2617 request_resize(term
->frontend
,
2618 def(term
->esc_args
[0],
2619 term
->cfg
.width
), term
->rows
);
2623 case 'X': /* write N spaces w/o moving cursor */
2624 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2625 compatibility(ANSIMIN
);
2627 int n
= def(term
->esc_args
[0], 1);
2629 unsigned long *p
= term
->cpos
;
2630 if (n
> term
->cols
- term
->curs
.x
)
2631 n
= term
->cols
- term
->curs
.x
;
2632 cursplus
= term
->curs
;
2634 check_boundary(term
, term
->curs
.x
, term
->curs
.y
);
2635 check_boundary(term
, term
->curs
.x
+n
, term
->curs
.y
);
2636 check_selection(term
, term
->curs
, cursplus
);
2638 *p
++ = term
->erase_char
;
2639 term
->seen_disp_event
= TRUE
;
2642 case 'x': /* report terminal characteristics */
2643 compatibility(VT100
);
2646 int i
= def(term
->esc_args
[0], 0);
2647 if (i
== 0 || i
== 1) {
2648 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2650 ldisc_send(term
->ldisc
, buf
, 20, 0);
2654 case 'Z': /* BackTab for xterm */
2655 compatibility(OTHER
);
2657 int i
= def(term
->esc_args
[0], 1);
2658 pos old_curs
= term
->curs
;
2660 for(;i
>0 && term
->curs
.x
>0; i
--) {
2663 } while (term
->curs
.x
>0 &&
2664 !term
->tabs
[term
->curs
.x
]);
2667 check_selection(term
, old_curs
, term
->curs
);
2670 case ANSI('L', '='):
2671 compatibility(OTHER
);
2672 term
->use_bce
= (term
->esc_args
[0] <= 0);
2673 term
->erase_char
= ERASE_CHAR
;
2675 term
->erase_char
= (' ' | ATTR_ASCII
|
2677 (ATTR_FGMASK
| ATTR_BGMASK
)));
2679 case ANSI('E', '='):
2680 compatibility(OTHER
);
2681 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2683 case ANSI('p', '"'):
2685 * Allow the host to make this emulator a
2686 * 'perfect' VT102. This first appeared in
2687 * the VT220, but we do need to get back to
2688 * PuTTY mode so I won't check it.
2690 * The arg in 40..42,50 are a PuTTY extension.
2691 * The 2nd arg, 8bit vs 7bit is not checked.
2693 * Setting VT102 mode should also change
2694 * the Fkeys to generate PF* codes as a
2695 * real VT102 has no Fkeys. The VT220 does
2696 * this, F11..F13 become ESC,BS,LF other
2697 * Fkeys send nothing.
2699 * Note ESC c will NOT change this!
2702 switch (term
->esc_args
[0]) {
2704 term
->compatibility_level
&= ~TM_VTXXX
;
2705 term
->compatibility_level
|= TM_VT102
;
2708 term
->compatibility_level
&= ~TM_VTXXX
;
2709 term
->compatibility_level
|= TM_VT220
;
2713 if (term
->esc_args
[0] > 60 &&
2714 term
->esc_args
[0] < 70)
2715 term
->compatibility_level
|= TM_VTXXX
;
2719 term
->compatibility_level
&= TM_VTXXX
;
2722 term
->compatibility_level
= TM_PUTTY
;
2725 term
->compatibility_level
= TM_SCOANSI
;
2729 term
->compatibility_level
= TM_PUTTY
;
2735 /* Change the response to CSI c */
2736 if (term
->esc_args
[0] == 50) {
2739 strcpy(term
->id_string
, "\033[?");
2740 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2742 strcat(term
->id_string
, ";");
2743 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2744 strcat(term
->id_string
, lbuf
);
2746 strcat(term
->id_string
, "c");
2749 /* Is this a good idea ?
2750 * Well we should do a soft reset at this point ...
2752 if (!has_compat(VT420
) && has_compat(VT100
)) {
2753 if (!term
->cfg
.no_remote_resize
) {
2754 if (term
->reset_132
)
2755 request_resize(132, 24);
2757 request_resize(80, 24);
2765 term
->osc_w
= FALSE
;
2767 case 'P': /* Linux palette sequence */
2768 term
->termstate
= SEEN_OSC_P
;
2769 term
->osc_strlen
= 0;
2771 case 'R': /* Linux palette reset */
2772 palette_reset(term
->frontend
);
2773 term_invalidate(term
);
2774 term
->termstate
= TOPLEVEL
;
2776 case 'W': /* word-set */
2777 term
->termstate
= SEEN_OSC_W
;
2790 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2794 * Grotty hack to support xterm and DECterm title
2795 * sequences concurrently.
2797 if (term
->esc_args
[0] == 2) {
2798 term
->esc_args
[0] = 1;
2801 /* else fall through */
2803 term
->termstate
= OSC_STRING
;
2804 term
->osc_strlen
= 0;
2809 * This OSC stuff is EVIL. It takes just one character to get into
2810 * sysline mode and it's not initially obvious how to get out.
2811 * So I've added CR and LF as string aborts.
2812 * This shouldn't effect compatibility as I believe embedded
2813 * control characters are supposed to be interpreted (maybe?)
2814 * and they don't display anything useful anyway.
2818 if (c
== '\012' || c
== '\015') {
2819 term
->termstate
= TOPLEVEL
;
2820 } else if (c
== 0234 || c
== '\007') {
2822 * These characters terminate the string; ST and BEL
2823 * terminate the sequence and trigger instant
2824 * processing of it, whereas ESC goes back to SEEN_ESC
2825 * mode unless it is followed by \, in which case it is
2826 * synonymous with ST in the first place.
2829 term
->termstate
= TOPLEVEL
;
2830 } else if (c
== '\033')
2831 term
->termstate
= OSC_MAYBE_ST
;
2832 else if (term
->osc_strlen
< OSC_STR_MAX
)
2833 term
->osc_string
[term
->osc_strlen
++] = c
;
2837 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2839 if (c
>= '0' && c
<= '9')
2841 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2843 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2846 term
->termstate
= TOPLEVEL
;
2849 term
->osc_string
[term
->osc_strlen
++] = val
;
2850 if (term
->osc_strlen
>= 7) {
2851 palette_set(term
->frontend
, term
->osc_string
[0],
2852 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2853 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2854 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2855 term_invalidate(term
);
2856 term
->termstate
= TOPLEVEL
;
2872 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2875 term
->termstate
= OSC_STRING
;
2876 term
->osc_strlen
= 0;
2880 term
->termstate
= TOPLEVEL
;
2881 term
->seen_disp_event
= TRUE
;
2884 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2887 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2890 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2893 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2896 * From the VT100 Manual
2897 * NOTE: The special graphics characters in the VT100
2898 * are different from those in the VT52
2900 * From VT102 manual:
2901 * 137 _ Blank - Same
2902 * 140 ` Reserved - Humm.
2903 * 141 a Solid rectangle - Similar
2904 * 142 b 1/ - Top half of fraction for the
2905 * 143 c 3/ - subscript numbers below.
2908 * 146 f Degrees - Same
2909 * 147 g Plus or minus - Same
2911 * 151 i Ellipsis (dots)
2914 * 154 l Bar at scan 0
2915 * 155 m Bar at scan 1
2916 * 156 n Bar at scan 2
2917 * 157 o Bar at scan 3 - Similar
2918 * 160 p Bar at scan 4 - Similar
2919 * 161 q Bar at scan 5 - Similar
2920 * 162 r Bar at scan 6 - Same
2921 * 163 s Bar at scan 7 - Similar
2936 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2939 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2942 move(term
, 0, 0, 0);
2945 if (term
->curs
.y
== 0)
2946 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2947 else if (term
->curs
.y
> 0)
2950 term
->wrapnext
= FALSE
;
2953 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2957 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2961 /* XXX Print cursor line */
2964 /* XXX Start controller mode */
2967 /* XXX Stop controller mode */
2971 term
->termstate
= VT52_Y1
;
2975 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2978 term
->app_keypad_keys
= TRUE
;
2981 term
->app_keypad_keys
= FALSE
;
2984 /* XXX This should switch to VT100 mode not current or default
2985 * VT mode. But this will only have effect in a VT220+
2988 term
->vt52_mode
= FALSE
;
2989 term
->blink_is_real
= term
->cfg
.blinktext
;
2993 /* XXX Enter auto print mode */
2996 /* XXX Exit auto print mode */
2999 /* XXX Print screen */
3005 /* compatibility(ATARI) */
3006 move(term
, 0, 0, 0);
3007 erase_lots(term
, FALSE
, FALSE
, TRUE
);
3011 /* compatibility(ATARI) */
3012 if (term
->curs
.y
<= term
->marg_b
)
3013 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
3016 /* compatibility(ATARI) */
3017 if (term
->curs
.y
<= term
->marg_b
)
3018 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
3021 /* compatibility(ATARI) */
3022 term
->termstate
= VT52_FG
;
3025 /* compatibility(ATARI) */
3026 term
->termstate
= VT52_BG
;
3029 /* compatibility(ATARI) */
3030 erase_lots(term
, FALSE
, TRUE
, FALSE
);
3034 /* compatibility(ATARI) */
3035 term
->cursor_on
= TRUE
;
3038 /* compatibility(ATARI) */
3039 term
->cursor_on
= FALSE
;
3041 /* case 'j': Save cursor position - broken on ST */
3042 /* case 'k': Restore cursor position */
3044 /* compatibility(ATARI) */
3045 erase_lots(term
, TRUE
, TRUE
, TRUE
);
3047 term
->wrapnext
= FALSE
;
3051 /* compatibility(ATARI) */
3052 erase_lots(term
, TRUE
, TRUE
, FALSE
);
3055 /* compatibility(ATARI) */
3056 term
->curr_attr
|= ATTR_REVERSE
;
3059 /* compatibility(ATARI) */
3060 term
->curr_attr
&= ~ATTR_REVERSE
;
3062 case 'v': /* wrap Autowrap on - Wyse style */
3063 /* compatibility(ATARI) */
3066 case 'w': /* Autowrap off */
3067 /* compatibility(ATARI) */
3072 /* compatibility(OTHER) */
3073 term
->vt52_bold
= FALSE
;
3074 term
->curr_attr
= ATTR_DEFAULT
;
3076 term
->erase_char
= (' ' | ATTR_ASCII
|
3078 (ATTR_FGMASK
| ATTR_BGMASK
)));
3081 /* compatibility(VI50) */
3082 term
->curr_attr
|= ATTR_UNDER
;
3085 /* compatibility(VI50) */
3086 term
->curr_attr
&= ~ATTR_UNDER
;
3089 /* compatibility(VI50) */
3090 term
->vt52_bold
= TRUE
;
3091 term
->curr_attr
|= ATTR_BOLD
;
3094 /* compatibility(VI50) */
3095 term
->vt52_bold
= FALSE
;
3096 term
->curr_attr
&= ~ATTR_BOLD
;
3102 term
->termstate
= VT52_Y2
;
3103 move(term
, term
->curs
.x
, c
- ' ', 0);
3106 term
->termstate
= TOPLEVEL
;
3107 move(term
, c
- ' ', term
->curs
.y
, 0);
3112 term
->termstate
= TOPLEVEL
;
3113 term
->curr_attr
&= ~ATTR_FGMASK
;
3114 term
->curr_attr
&= ~ATTR_BOLD
;
3115 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
3116 if ((c
& 0x8) || term
->vt52_bold
)
3117 term
->curr_attr
|= ATTR_BOLD
;
3120 term
->erase_char
= (' ' | ATTR_ASCII
|
3122 (ATTR_FGMASK
| ATTR_BGMASK
)));
3125 term
->termstate
= TOPLEVEL
;
3126 term
->curr_attr
&= ~ATTR_BGMASK
;
3127 term
->curr_attr
&= ~ATTR_BLINK
;
3128 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
3130 /* Note: bold background */
3132 term
->curr_attr
|= ATTR_BLINK
;
3135 term
->erase_char
= (' ' | ATTR_ASCII
|
3137 (ATTR_FGMASK
| ATTR_BGMASK
)));
3140 default: break; /* placate gcc warning about enum use */
3142 if (term
->selstate
!= NO_SELECTION
) {
3143 pos cursplus
= term
->curs
;
3145 check_selection(term
, term
->curs
, cursplus
);
3149 term_print_flush(term
);
3154 * Compare two lines to determine whether they are sufficiently
3155 * alike to scroll-optimise one to the other. Return the degree of
3158 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
3162 for (i
= n
= 0; i
< term
->cols
; i
++)
3163 n
+= (*a
++ == *b
++);
3169 * Given a context, update the window. Out of paranoia, we don't
3170 * allow WM_PAINT responses to do scrolling optimisations.
3172 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
3174 int i
, j
, our_curs_y
, our_curs_x
;
3175 unsigned long rv
, cursor
;
3178 long cursor_background
= ERASE_CHAR
;
3179 unsigned long ticks
;
3180 #ifdef OPTIMISE_SCROLL
3181 struct scrollregion
*sr
;
3182 #endif /* OPTIMISE_SCROLL */
3185 * Check the visual bell state.
3187 if (term
->in_vbell
) {
3188 ticks
= GETTICKCOUNT();
3189 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
3190 term
->in_vbell
= FALSE
;
3193 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
3196 * screen array, disptop, scrtop,
3198 * cfg.blinkpc, blink_is_real, tblinker,
3199 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
3202 /* Has the cursor position or type changed ? */
3203 if (term
->cursor_on
) {
3204 if (term
->has_focus
) {
3205 if (term
->blinker
|| !term
->cfg
.blink_cur
)
3206 cursor
= TATTR_ACTCURS
;
3210 cursor
= TATTR_PASCURS
;
3212 cursor
|= TATTR_RIGHTCURS
;
3215 our_curs_y
= term
->curs
.y
- term
->disptop
;
3218 * Adjust the cursor position in the case where it's
3219 * resting on the right-hand half of a CJK wide character.
3220 * xterm's behaviour here, which seems adequate to me, is
3221 * to display the cursor covering the _whole_ character,
3222 * exactly as if it were one space to the left.
3224 unsigned long *ldata
= lineptr(term
->curs
.y
);
3225 our_curs_x
= term
->curs
.x
;
3226 if (our_curs_x
> 0 &&
3227 (ldata
[our_curs_x
] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3231 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
3233 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
3235 if (term
->dispcurs
> term
->disptext
&&
3236 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3237 term
->dispcurs
[-1] |= ATTR_INVALID
;
3238 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3239 term
->dispcurs
[1] |= ATTR_INVALID
;
3240 *term
->dispcurs
|= ATTR_INVALID
;
3243 term
->dispcurs
= NULL
;
3245 #ifdef OPTIMISE_SCROLL
3247 sr
= term
->scrollhead
;
3249 struct scrollregion
*next
= sr
->next
;
3250 do_scroll(ctx
, sr
->topline
, sr
->botline
, sr
->lines
);
3254 term
->scrollhead
= term
->scrolltail
= NULL
;
3255 #endif /* OPTIMISE_SCROLL */
3257 /* The normal screen data */
3258 for (i
= 0; i
< term
->rows
; i
++) {
3259 unsigned long *ldata
;
3261 int idx
, dirty_line
, dirty_run
, selected
;
3262 unsigned long attr
= 0;
3263 int updated_line
= 0;
3266 int last_run_dirty
= 0;
3268 scrpos
.y
= i
+ term
->disptop
;
3269 ldata
= lineptr(scrpos
.y
);
3270 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
3272 idx
= i
* (term
->cols
+ 1);
3273 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
3274 term
->disptext
[idx
+ term
->cols
]);
3275 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
3277 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
3278 unsigned long tattr
, tchar
;
3279 unsigned long *d
= ldata
+ j
;
3283 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
3284 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
3285 switch (tchar
& CSET_MASK
) {
3287 tchar
= term
->ucsdata
->unitab_line
[tchar
& 0xFF];
3290 tchar
= term
->ucsdata
->unitab_xterm
[tchar
& 0xFF];
3293 tchar
= term
->ucsdata
->unitab_scoacs
[tchar
&0xFF];
3296 tattr
|= (tchar
& CSET_MASK
);
3298 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
3301 /* Video reversing things */
3302 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
3303 if (term
->seltype
== LEXICOGRAPHIC
)
3304 selected
= (posle(term
->selstart
, scrpos
) &&
3305 poslt(scrpos
, term
->selend
));
3307 selected
= (posPle(term
->selstart
, scrpos
) &&
3308 posPlt(scrpos
, term
->selend
));
3312 ^ (selected ? ATTR_REVERSE
: 0));
3314 /* 'Real' blinking ? */
3315 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3316 if (term
->has_focus
&& term
->tblinker
) {
3317 tchar
= term
->ucsdata
->unitab_line
[(unsigned char)' '];
3319 tattr
&= ~ATTR_BLINK
;
3323 * Check the font we'll _probably_ be using to see if
3324 * the character is wide when we don't want it to be.
3326 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3327 if ((tattr
& ATTR_WIDE
) == 0 &&
3328 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3329 tattr
|= ATTR_NARROW
;
3330 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3331 tattr
|= ATTR_NARROW
;
3333 /* Cursor here ? Save the 'background' */
3334 if (i
== our_curs_y
&& j
== our_curs_x
) {
3335 cursor_background
= tattr
| tchar
;
3336 term
->dispcurs
= term
->disptext
+ idx
;
3339 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3342 break_run
= (((tattr
^ attr
) & term
->attr_mask
) ||
3343 j
- start
>= sizeof(ch
));
3345 /* Special hack for VT100 Linedraw glyphs */
3346 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3347 && tchar
<= 0xBD) break_run
= TRUE
;
3349 if (!term
->ucsdata
->dbcs_screenfont
&& !dirty_line
) {
3350 if ((tchar
| tattr
) == term
->disptext
[idx
])
3352 else if (!dirty_run
&& ccount
== 1)
3357 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3358 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3364 if (term
->ucsdata
->dbcs_screenfont
)
3365 last_run_dirty
= dirty_run
;
3366 dirty_run
= dirty_line
;
3369 if ((tchar
| tattr
) != term
->disptext
[idx
])
3371 ch
[ccount
++] = (char) tchar
;
3372 term
->disptext
[idx
] = tchar
| tattr
;
3374 /* If it's a wide char step along to the next one. */
3375 if (tattr
& ATTR_WIDE
) {
3376 if (++j
< term
->cols
) {
3380 * By construction above, the cursor should not
3381 * be on the right-hand half of this character.
3384 assert(!(i
== our_curs_y
&& j
== our_curs_x
));
3385 if (term
->disptext
[idx
] != *d
)
3387 term
->disptext
[idx
] = *d
;
3391 if (dirty_run
&& ccount
> 0) {
3392 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3396 /* Cursor on this line ? (and changed) */
3397 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3398 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3399 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3400 do_cursor(ctx
, our_curs_x
, i
, ch
, 1, attr
, lattr
);
3401 term
->curstype
= cursor
;
3407 * Flick the switch that says if blinking things should be shown or hidden.
3410 void term_blink(Terminal
*term
, int flg
)
3412 long now
, blink_diff
;
3414 now
= GETTICKCOUNT();
3415 blink_diff
= now
- term
->last_tblink
;
3417 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3418 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3419 term
->last_tblink
= now
;
3420 term
->tblinker
= !term
->tblinker
;
3425 term
->last_blink
= now
;
3429 blink_diff
= now
- term
->last_blink
;
3431 /* Make sure the cursor blinks no faster than system blink rate */
3432 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3435 term
->last_blink
= now
;
3436 term
->blinker
= !term
->blinker
;
3440 * Invalidate the whole screen so it will be repainted in full.
3442 void term_invalidate(Terminal
*term
)
3446 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3447 term
->disptext
[i
] = ATTR_INVALID
;
3451 * Paint the window in response to a WM_PAINT message.
3453 void term_paint(Terminal
*term
, Context ctx
,
3454 int left
, int top
, int right
, int bottom
, int immediately
)
3457 if (left
< 0) left
= 0;
3458 if (top
< 0) top
= 0;
3459 if (right
>= term
->cols
) right
= term
->cols
-1;
3460 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3462 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3463 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3464 LATTR_MODE
) == LATTR_NORM
)
3465 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3466 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3468 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3469 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3472 /* This should happen soon enough, also for some reason it sometimes
3473 * fails to actually do anything when re-sizing ... painting the wrong
3477 do_paint (term
, ctx
, FALSE
);
3481 * Attempt to scroll the scrollback. The second parameter gives the
3482 * position we want to scroll to; the first is +1 to denote that
3483 * this position is relative to the beginning of the scrollback, -1
3484 * to denote it is relative to the end, and 0 to denote that it is
3485 * relative to the current position.
3487 void term_scroll(Terminal
*term
, int rel
, int where
)
3489 int sbtop
= -sblines(term
);
3490 #ifdef OPTIMISE_SCROLL
3491 int olddisptop
= term
->disptop
;
3493 #endif /* OPTIMISE_SCROLL */
3495 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3496 if (term
->disptop
< sbtop
)
3497 term
->disptop
= sbtop
;
3498 if (term
->disptop
> 0)
3501 #ifdef OPTIMISE_SCROLL
3502 shift
= (term
->disptop
- olddisptop
);
3503 if (shift
< term
->rows
&& shift
> -term
->rows
)
3504 scroll_display(term
, 0, term
->rows
- 1, shift
);
3505 #endif /* OPTIMISE_SCROLL */
3509 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3512 wchar_t *wbptr
; /* where next char goes within workbuf */
3514 int wblen
= 0; /* workbuf len */
3515 int buflen
; /* amount of memory allocated to workbuf */
3517 buflen
= 5120; /* Default size */
3518 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3519 wbptr
= workbuf
; /* start filling here */
3520 old_top_x
= top
.x
; /* needed for rect==1 */
3522 while (poslt(top
, bottom
)) {
3524 unsigned long *ldata
= lineptr(top
.y
);
3528 * nlpos will point at the maximum position on this line we
3529 * should copy up to. So we start it at the end of the
3533 nlpos
.x
= term
->cols
;
3536 * ... move it backwards if there's unused space at the end
3537 * of the line (and also set `nl' if this is the case,
3538 * because in normal selection mode this means we need a
3539 * newline at the end)...
3541 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3542 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3543 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3544 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3545 && poslt(top
, nlpos
))
3547 if (poslt(nlpos
, bottom
))
3549 } else if (ldata
[term
->cols
] & LATTR_WRAPPED2
) {
3550 /* Ignore the last char on the line in a WRAPPED2 line. */
3555 * ... and then clip it to the terminal x coordinate if
3556 * we're doing rectangular selection. (In this case we
3557 * still did the above, so that copying e.g. the right-hand
3558 * column from a table doesn't fill with spaces on the
3562 if (nlpos
.x
> bottom
.x
)
3564 nl
= (top
.y
< bottom
.y
);
3567 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3570 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3572 wchar_t cbuf
[16], *p
;
3573 int uc
= (ldata
[top
.x
] & 0xFFFF);
3576 if (uc
== UCSWIDE
) {
3581 switch (uc
& CSET_MASK
) {
3583 if (!term
->cfg
.rawcnp
) {
3584 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3588 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3591 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3594 switch (uc
& CSET_MASK
) {
3596 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3599 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3603 set
= (uc
& CSET_MASK
);
3604 c
= (uc
& CHAR_MASK
);
3608 if (DIRECT_FONT(uc
)) {
3609 if (c
>= ' ' && c
!= 0x7F) {
3613 if (is_dbcs_leadbyte(term
->ucsdata
->font_codepage
, (BYTE
) c
)) {
3615 buf
[1] = (char) (0xFF & ldata
[top
.x
+ 1]);
3616 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 2, wbuf
, 4);
3620 rv
= mb_to_wc(term
->ucsdata
->font_codepage
, 0, buf
, 1, wbuf
, 4);
3624 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3631 for (p
= cbuf
; *p
; p
++) {
3632 /* Enough overhead for trailing NL and nul */
3633 if (wblen
>= buflen
- 16) {
3636 sizeof(wchar_t) * (buflen
+= 100));
3637 wbptr
= workbuf
+ wblen
;
3646 for (i
= 0; i
< sel_nl_sz
; i
++) {
3648 *wbptr
++ = sel_nl
[i
];
3652 top
.x
= rect ? old_top_x
: 0;
3654 #if SELECTION_NUL_TERMINATED
3658 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3659 if (buflen
> 0) /* indicates we allocated this buffer */
3663 void term_copyall(Terminal
*term
)
3666 top
.y
= -sblines(term
);
3668 clipme(term
, top
, term
->curs
, 0);
3672 * The wordness array is mainly for deciding the disposition of the
3673 * US-ASCII characters.
3675 static int wordtype(Terminal
*term
, int uc
)
3678 int start
, end
, ctype
;
3680 static const struct ucsword ucs_words
[] = {
3686 0x037e, 0x037e, 1}, /* Greek question mark */
3688 0x0387, 0x0387, 1}, /* Greek ano teleia */
3690 0x055a, 0x055f, 1}, /* Armenian punctuation */
3692 0x0589, 0x0589, 1}, /* Armenian full stop */
3694 0x0700, 0x070d, 1}, /* Syriac punctuation */
3696 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3698 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3700 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3702 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3704 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3706 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3708 0x2000, 0x200a, 0}, /* Various spaces */
3710 0x2070, 0x207f, 2}, /* superscript */
3712 0x2080, 0x208f, 2}, /* subscript */
3714 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3716 0x3000, 0x3000, 0}, /* ideographic space */
3718 0x3001, 0x3020, 1}, /* ideographic punctuation */
3720 0x303f, 0x309f, 3}, /* Hiragana */
3722 0x30a0, 0x30ff, 3}, /* Katakana */
3724 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3726 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3728 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3730 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3732 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3734 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3736 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3738 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3740 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3744 const struct ucsword
*wptr
;
3746 uc
&= (CSET_MASK
| CHAR_MASK
);
3748 switch (uc
& CSET_MASK
) {
3750 uc
= term
->ucsdata
->unitab_xterm
[uc
& 0xFF];
3753 uc
= term
->ucsdata
->unitab_line
[uc
& 0xFF];
3756 uc
= term
->ucsdata
->unitab_scoacs
[uc
&0xFF];
3759 switch (uc
& CSET_MASK
) {
3761 uc
= term
->ucsdata
->unitab_font
[uc
& 0xFF];
3764 uc
= term
->ucsdata
->unitab_oemcp
[uc
& 0xFF];
3768 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3769 * fail as there's such a thing as a double width space. :-(
3771 if (term
->ucsdata
->dbcs_screenfont
&&
3772 term
->ucsdata
->font_codepage
== term
->ucsdata
->line_codepage
)
3776 return term
->wordness
[uc
];
3778 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3779 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3787 * Spread the selection outwards according to the selection mode.
3789 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3791 unsigned long *ldata
;
3793 int topy
= -sblines(term
);
3795 ldata
= lineptr(p
.y
);
3797 switch (term
->selmode
) {
3800 * In this mode, every character is a separate unit, except
3801 * for runs of spaces at the end of a non-wrapping line.
3803 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3804 unsigned long *q
= ldata
+ term
->cols
;
3805 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3807 if (q
== ldata
+ term
->cols
)
3809 if (p
.x
>= q
- ldata
)
3810 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3815 * In this mode, the units are maximal runs of characters
3816 * whose `wordness' has the same value.
3818 wvalue
= wordtype(term
, UCSGET(ldata
, p
.x
));
3821 int maxcols
= (ldata
[term
->cols
] & LATTR_WRAPPED2 ?
3822 term
->cols
-1 : term
->cols
);
3823 if (p
.x
< maxcols
-1) {
3824 if (wordtype(term
, UCSGET(ldata
, p
.x
+ 1)) == wvalue
)
3829 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3830 unsigned long *ldata2
;
3831 ldata2
= lineptr(p
.y
+1);
3832 if (wordtype(term
, UCSGET(ldata2
, 0)) == wvalue
) {
3845 if (wordtype(term
, UCSGET(ldata
, p
.x
- 1)) == wvalue
)
3850 unsigned long *ldata2
;
3854 ldata2
= lineptr(p
.y
-1);
3855 maxcols
= (ldata2
[term
->cols
] & LATTR_WRAPPED2 ?
3856 term
->cols
-1 : term
->cols
);
3857 if (ldata2
[term
->cols
] & LATTR_WRAPPED
) {
3858 if (wordtype(term
, UCSGET(ldata2
, maxcols
-1))
3873 * In this mode, every line is a unit.
3875 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3881 static void sel_spread(Terminal
*term
)
3883 if (term
->seltype
== LEXICOGRAPHIC
) {
3884 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3885 decpos(term
->selend
);
3886 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3887 incpos(term
->selend
);
3891 void term_do_paste(Terminal
*term
)
3896 get_clip(term
->frontend
, &data
, &len
);
3897 if (data
&& len
> 0) {
3900 term_seen_key_event(term
); /* pasted data counts */
3902 if (term
->paste_buffer
)
3903 sfree(term
->paste_buffer
);
3904 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3905 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3908 while (p
< data
+ len
) {
3909 while (p
< data
+ len
&&
3910 !(p
<= data
+ len
- sel_nl_sz
&&
3911 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3916 for (i
= 0; i
< p
- q
; i
++) {
3917 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3921 if (p
<= data
+ len
- sel_nl_sz
&&
3922 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3923 term
->paste_buffer
[term
->paste_len
++] = '\015';
3929 /* Assume a small paste will be OK in one go. */
3930 if (term
->paste_len
< 256) {
3932 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3933 if (term
->paste_buffer
)
3934 sfree(term
->paste_buffer
);
3935 term
->paste_buffer
= 0;
3936 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3939 get_clip(term
->frontend
, NULL
, NULL
);
3942 void term_mouse(Terminal
*term
, Mouse_Button braw
, Mouse_Button bcooked
,
3943 Mouse_Action a
, int x
, int y
, int shift
, int ctrl
, int alt
)
3946 unsigned long *ldata
;
3947 int raw_mouse
= (term
->xterm_mouse
&&
3948 !term
->cfg
.no_mouse_rep
&&
3949 !(term
->cfg
.mouse_override
&& shift
));
3950 int default_seltype
;
3954 if (a
== MA_DRAG
&& !raw_mouse
)
3955 term_scroll(term
, 0, -1);
3957 if (y
>= term
->rows
) {
3959 if (a
== MA_DRAG
&& !raw_mouse
)
3960 term_scroll(term
, 0, +1);
3969 if (x
>= term
->cols
)
3972 selpoint
.y
= y
+ term
->disptop
;
3974 ldata
= lineptr(selpoint
.y
);
3975 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3979 int encstate
= 0, r
, c
;
3986 encstate
= 0x20; /* left button down */
3997 case MBT_WHEEL_DOWN
:
4000 default: break; /* placate gcc warning about enum use */
4004 if (term
->xterm_mouse
== 1)
4010 term
->mouse_is_down
= 0;
4013 if (term
->mouse_is_down
== braw
)
4015 term
->mouse_is_down
= braw
;
4017 default: break; /* placate gcc warning about enum use */
4026 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
4027 ldisc_send(term
->ldisc
, abuf
, 6, 0);
4033 * Set the selection type (rectangular or normal) at the start
4034 * of a selection attempt, from the state of Alt.
4036 if (!alt
^ !term
->cfg
.rect_select
)
4037 default_seltype
= RECTANGULAR
;
4039 default_seltype
= LEXICOGRAPHIC
;
4041 if (term
->selstate
== NO_SELECTION
) {
4042 term
->seltype
= default_seltype
;
4045 if (bcooked
== MBT_SELECT
&& a
== MA_CLICK
) {
4047 term
->selstate
= ABOUT_TO
;
4048 term
->seltype
= default_seltype
;
4049 term
->selanchor
= selpoint
;
4050 term
->selmode
= SM_CHAR
;
4051 } else if (bcooked
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
4053 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
4054 term
->selstate
= DRAGGING
;
4055 term
->selstart
= term
->selanchor
= selpoint
;
4056 term
->selend
= term
->selstart
;
4057 incpos(term
->selend
);
4059 } else if ((bcooked
== MBT_SELECT
&& a
== MA_DRAG
) ||
4060 (bcooked
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
4061 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
4063 if (bcooked
== MBT_EXTEND
&& a
!= MA_DRAG
&&
4064 term
->selstate
== SELECTED
) {
4065 if (term
->seltype
== LEXICOGRAPHIC
) {
4067 * For normal selection, we extend by moving
4068 * whichever end of the current selection is closer
4071 if (posdiff(selpoint
, term
->selstart
) <
4072 posdiff(term
->selend
, term
->selstart
) / 2) {
4073 term
->selanchor
= term
->selend
;
4074 decpos(term
->selanchor
);
4076 term
->selanchor
= term
->selstart
;
4080 * For rectangular selection, we have a choice of
4081 * _four_ places to put selanchor and selpoint: the
4082 * four corners of the selection.
4084 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
4085 term
->selanchor
.x
= term
->selend
.x
-1;
4087 term
->selanchor
.x
= term
->selstart
.x
;
4089 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
4090 term
->selanchor
.y
= term
->selend
.y
;
4092 term
->selanchor
.y
= term
->selstart
.y
;
4094 term
->selstate
= DRAGGING
;
4096 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
4097 term
->selanchor
= selpoint
;
4098 term
->selstate
= DRAGGING
;
4099 if (term
->seltype
== LEXICOGRAPHIC
) {
4101 * For normal selection, we set (selstart,selend) to
4102 * (selpoint,selanchor) in some order.
4104 if (poslt(selpoint
, term
->selanchor
)) {
4105 term
->selstart
= selpoint
;
4106 term
->selend
= term
->selanchor
;
4107 incpos(term
->selend
);
4109 term
->selstart
= term
->selanchor
;
4110 term
->selend
= selpoint
;
4111 incpos(term
->selend
);
4115 * For rectangular selection, we may need to
4116 * interchange x and y coordinates (if the user has
4117 * dragged in the -x and +y directions, or vice versa).
4119 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
4120 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
4121 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
4122 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
4125 } else if ((bcooked
== MBT_SELECT
|| bcooked
== MBT_EXTEND
) &&
4127 if (term
->selstate
== DRAGGING
) {
4129 * We've completed a selection. We now transfer the
4130 * data to the clipboard.
4132 clipme(term
, term
->selstart
, term
->selend
,
4133 (term
->seltype
== RECTANGULAR
));
4134 term
->selstate
= SELECTED
;
4136 term
->selstate
= NO_SELECTION
;
4137 } else if (bcooked
== MBT_PASTE
4139 #if MULTICLICK_ONLY_EVENT
4140 || a
== MA_2CLK
|| a
== MA_3CLK
4143 request_paste(term
->frontend
);
4149 void term_key(Terminal
*term
, Key_Sym keysym
, wchar_t *text
, size_t tlen
,
4150 unsigned int modifiers
, unsigned int flags
)
4154 int prependesc
= FALSE
;
4158 fprintf(stderr
, "keysym = %d, %d chars:", keysym
, tlen
);
4159 for (i
= 0; i
< tlen
; i
++)
4160 fprintf(stderr
, " %04x", (unsigned)text
[i
]);
4161 fprintf(stderr
, "\n");
4165 if ((flags
& PKF_REPEAT
) && term
->repeat_off
)
4168 /* Currently, Meta always just prefixes everything with ESC. */
4169 if (modifiers
& PKM_META
)
4171 modifiers
&= ~PKM_META
;
4174 * Alt is only used for Alt+keypad, which isn't supported yet, so
4177 modifiers
&= ~PKM_ALT
;
4179 /* Standard local function keys */
4180 switch (modifiers
& (PKM_SHIFT
| PKM_CONTROL
)) {
4182 if (keysym
== PK_PAGEUP
)
4183 /* scroll up one page */;
4184 if (keysym
== PK_PAGEDOWN
)
4185 /* scroll down on page */;
4186 if (keysym
== PK_INSERT
)
4187 term_do_paste(term
);
4190 if (keysym
== PK_PAGEUP
)
4191 /* scroll up one line */;
4192 if (keysym
== PK_PAGEDOWN
)
4193 /* scroll down one line */;
4194 /* Control-Numlock for app-keypad mode switch */
4195 if (keysym
== PK_PF1
)
4196 term
->app_keypad_keys
^= 1;
4200 if (modifiers
& PKM_ALT
) {
4201 /* Alt+F4 (close) */
4202 /* Alt+Return (full screen) */
4203 /* Alt+Space (system menu) */
4206 if (keysym
== PK_NULL
&& (modifiers
& PKM_CONTROL
) && tlen
== 1 &&
4207 text
[0] >= 0x20 && text
[0] <= 0x7e) {
4208 /* ASCII chars + Control */
4209 if ((text
[0] >= 0x40 && text
[0] <= 0x5f) ||
4210 (text
[0] >= 0x61 && text
[0] <= 0x7a))
4214 * Control-2 should return ^@ (0x00), Control-6 should return
4215 * ^^ (0x1E), and Control-Minus should return ^_ (0x1F). Since
4216 * the DOS keyboard handling did it, and we have nothing better
4217 * to do with the key combo in question, we'll also map
4218 * Control-Backquote to ^\ (0x1C).
4221 case ' ': text
[0] = 0x00; break;
4222 case '-': text
[0] = 0x1f; break;
4223 case '/': text
[0] = 0x1f; break;
4224 case '2': text
[0] = 0x00; break;
4225 case '3': text
[0] = 0x1b; break;
4226 case '4': text
[0] = 0x1c; break;
4227 case '5': text
[0] = 0x1d; break;
4228 case '6': text
[0] = 0x1e; break;
4229 case '7': text
[0] = 0x1f; break;
4230 case '8': text
[0] = 0x7f; break;
4231 case '`': text
[0] = 0x1c; break;
4236 /* Nethack keypad */
4237 if (term
->cfg
.nethack_keypad
) {
4240 case PK_KP1
: c
= 'b'; break;
4241 case PK_KP2
: c
= 'j'; break;
4242 case PK_KP3
: c
= 'n'; break;
4243 case PK_KP4
: c
= 'h'; break;
4244 case PK_KP5
: c
= '.'; break;
4245 case PK_KP6
: c
= 'l'; break;
4246 case PK_KP7
: c
= 'y'; break;
4247 case PK_KP8
: c
= 'k'; break;
4248 case PK_KP9
: c
= 'u'; break;
4249 default: break; /* else gcc warns `enum value not used' */
4253 if (modifiers
& PKM_CONTROL
)
4255 else if (modifiers
& PKM_SHIFT
)
4263 /* Numeric Keypad */
4264 if (PK_ISKEYPAD(keysym
)) {
4268 * In VT400 mode, PFn always emits an escape sequence. In
4269 * Linux and tilde modes, this only happens in app keypad mode.
4271 if (term
->cfg
.funky_type
== FUNKY_VT400
||
4272 ((term
->cfg
.funky_type
== FUNKY_LINUX
||
4273 term
->cfg
.funky_type
== FUNKY_TILDE
) &&
4274 term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
)) {
4276 case PK_PF1
: xkey
= 'P'; break;
4277 case PK_PF2
: xkey
= 'Q'; break;
4278 case PK_PF3
: xkey
= 'R'; break;
4279 case PK_PF4
: xkey
= 'S'; break;
4280 default: break; /* else gcc warns `enum value not used' */
4283 if (term
->app_keypad_keys
&& !term
->cfg
.no_applic_k
) {
4285 case PK_KP0
: xkey
= 'p'; break;
4286 case PK_KP1
: xkey
= 'q'; break;
4287 case PK_KP2
: xkey
= 'r'; break;
4288 case PK_KP3
: xkey
= 's'; break;
4289 case PK_KP4
: xkey
= 't'; break;
4290 case PK_KP5
: xkey
= 'u'; break;
4291 case PK_KP6
: xkey
= 'v'; break;
4292 case PK_KP7
: xkey
= 'w'; break;
4293 case PK_KP8
: xkey
= 'x'; break;
4294 case PK_KP9
: xkey
= 'y'; break;
4295 case PK_KPDECIMAL
: xkey
= 'n'; break;
4296 case PK_KPENTER
: xkey
= 'M'; break;
4297 default: break; /* else gcc warns `enum value not used' */
4299 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& tlen
> 0) {
4301 * xterm can't see the layout of the keypad, so it has
4302 * to rely on the X keysyms returned by the keys.
4303 * Hence, we look at the strings here, not the PuTTY
4304 * keysyms (which describe the layout).
4308 if (modifiers
& PKM_SHIFT
)
4313 case '/': xkey
= 'o'; break;
4314 case '*': xkey
= 'j'; break;
4315 case '-': xkey
= 'm'; break;
4319 * In all other modes, we try to retain the layout of
4320 * the DEC keypad in application mode.
4324 /* This key covers the '-' and ',' keys on a VT220 */
4325 if (modifiers
& PKM_SHIFT
)
4326 xkey
= 'm'; /* VT220 '-' */
4328 xkey
= 'l'; /* VT220 ',' */
4330 case PK_KPMINUS
: xkey
= 'm'; break;
4331 case PK_KPCOMMA
: xkey
= 'l'; break;
4332 default: break; /* else gcc warns `enum value not used' */
4337 if (term
->vt52_mode
) {
4338 if (xkey
>= 'P' && xkey
<= 'S')
4339 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4341 p
+= sprintf((char *) p
, "\x1B?%c", xkey
);
4343 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4346 /* Not in application mode -- treat the number pad as arrow keys? */
4347 if ((flags
& PKF_NUMLOCK
) == 0) {
4349 case PK_KP0
: keysym
= PK_INSERT
; break;
4350 case PK_KP1
: keysym
= PK_END
; break;
4351 case PK_KP2
: keysym
= PK_DOWN
; break;
4352 case PK_KP3
: keysym
= PK_PAGEDOWN
; break;
4353 case PK_KP4
: keysym
= PK_LEFT
; break;
4354 case PK_KP5
: keysym
= PK_REST
; break;
4355 case PK_KP6
: keysym
= PK_RIGHT
; break;
4356 case PK_KP7
: keysym
= PK_HOME
; break;
4357 case PK_KP8
: keysym
= PK_UP
; break;
4358 case PK_KP9
: keysym
= PK_PAGEUP
; break;
4359 default: break; /* else gcc warns `enum value not used' */
4364 /* Miscellaneous keys */
4371 *p
++ = (term
->cfg
.bksp_is_delete ?
0x7F : 0x08);
4372 else if (modifiers
== PKM_SHIFT
)
4373 /* We do the opposite of what is configured */
4374 *p
++ = (term
->cfg
.bksp_is_delete ?
0x08 : 0x7F);
4380 else if (modifiers
== PKM_SHIFT
)
4381 *p
++ = 0x1B, *p
++ = '[', *p
++ = 'Z';
4384 /* XXX window.c has ctrl+shift+space sending 0xa0 */
4386 if (modifiers
== PKM_CONTROL
)
4391 case PK_KPENTER
: /* Odd keypad modes handled above */
4392 if (modifiers
== 0) {
4394 if (term
->cr_lf_return
)
4398 default: break; /* else gcc warns `enum value not used' */
4401 /* SCO function keys and editing keys */
4402 if (term
->cfg
.funky_type
== FUNKY_SCO
) {
4403 if (PK_ISFKEY(keysym
) && keysym
<= PK_F12
) {
4404 static char const codes
[] =
4405 "MNOPQRSTUVWX" "YZabcdefghij" "klmnopqrstuv" "wxyz@[\\]^_`{";
4406 int index
= keysym
- PK_F1
;
4408 if (modifiers
& PKM_SHIFT
) index
+= 12;
4409 if (modifiers
& PKM_CONTROL
) index
+= 24;
4410 p
+= sprintf((char *) p
, "\x1B[%c", codes
[index
]);
4413 if (PK_ISEDITING(keysym
)) {
4417 case PK_DELETE
: *p
++ = 0x7f; goto done
;
4418 case PK_HOME
: xkey
= 'H'; break;
4419 case PK_INSERT
: xkey
= 'L'; break;
4420 case PK_END
: xkey
= 'F'; break;
4421 case PK_PAGEUP
: xkey
= 'I'; break;
4422 case PK_PAGEDOWN
: xkey
= 'G'; break;
4423 default: break; /* else gcc warns `enum value not used' */
4425 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4429 if (PK_ISEDITING(keysym
) && (modifiers
& PKM_SHIFT
) == 0) {
4432 if (term
->cfg
.funky_type
== FUNKY_XTERM
) {
4433 /* Xterm shuffles these keys, apparently. */
4435 case PK_HOME
: keysym
= PK_INSERT
; break;
4436 case PK_INSERT
: keysym
= PK_HOME
; break;
4437 case PK_DELETE
: keysym
= PK_END
; break;
4438 case PK_END
: keysym
= PK_PAGEUP
; break;
4439 case PK_PAGEUP
: keysym
= PK_DELETE
; break;
4440 case PK_PAGEDOWN
: keysym
= PK_PAGEDOWN
; break;
4441 default: break; /* else gcc warns `enum value not used' */
4446 if (term
->cfg
.rxvt_homeend
&&
4447 (keysym
== PK_HOME
|| keysym
== PK_END
)) {
4448 p
+= sprintf((char *) p
, keysym
== PK_HOME ?
"\x1B[H" : "\x1BOw");
4452 if (term
->vt52_mode
) {
4456 * A real VT52 doesn't have these, and a VT220 doesn't
4457 * send anything for them in VT52 mode.
4460 case PK_HOME
: xkey
= 'H'; break;
4461 case PK_INSERT
: xkey
= 'L'; break;
4462 case PK_DELETE
: xkey
= 'M'; break;
4463 case PK_END
: xkey
= 'E'; break;
4464 case PK_PAGEUP
: xkey
= 'I'; break;
4465 case PK_PAGEDOWN
: xkey
= 'G'; break;
4466 default: break; /* else gcc warns `enum value not used' */
4468 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4473 case PK_HOME
: code
= 1; break;
4474 case PK_INSERT
: code
= 2; break;
4475 case PK_DELETE
: code
= 3; break;
4476 case PK_END
: code
= 4; break;
4477 case PK_PAGEUP
: code
= 5; break;
4478 case PK_PAGEDOWN
: code
= 6; break;
4479 default: break; /* else gcc warns `enum value not used' */
4481 p
+= sprintf((char *) p
, "\x1B[%d~", code
);
4485 if (PK_ISFKEY(keysym
)) {
4486 /* Map Shift+F1-F10 to F11-F20 */
4487 if (keysym
>= PK_F1
&& keysym
<= PK_F10
&& (modifiers
& PKM_SHIFT
))
4489 if ((term
->vt52_mode
|| term
->cfg
.funky_type
== FUNKY_VT100P
) &&
4491 /* XXX This overrides the XTERM/VT52 mode below */
4493 if (keysym
>= PK_F6
) offt
++;
4494 if (keysym
>= PK_F12
) offt
++;
4495 p
+= sprintf((char *) p
, term
->vt52_mode ?
"\x1B%c" : "\x1BO%c",
4496 'P' + keysym
- PK_F1
- offt
);
4499 if (term
->cfg
.funky_type
== FUNKY_LINUX
&& keysym
<= PK_F5
) {
4500 p
+= sprintf((char *) p
, "\x1B[[%c", 'A' + keysym
- PK_F1
);
4503 if (term
->cfg
.funky_type
== FUNKY_XTERM
&& keysym
<= PK_F4
) {
4504 if (term
->vt52_mode
)
4505 p
+= sprintf((char *) p
, "\x1B%c", 'P' + keysym
- PK_F1
);
4507 p
+= sprintf((char *) p
, "\x1BO%c", 'P' + keysym
- PK_F1
);
4510 p
+= sprintf((char *) p
, "\x1B[%d~", 11 + keysym
- PK_F1
);
4514 if (PK_ISCURSOR(keysym
)) {
4518 case PK_UP
: xkey
= 'A'; break;
4519 case PK_DOWN
: xkey
= 'B'; break;
4520 case PK_RIGHT
: xkey
= 'C'; break;
4521 case PK_LEFT
: xkey
= 'D'; break;
4522 case PK_REST
: xkey
= 'G'; break; /* centre key on number pad */
4523 default: break; /* else gcc warns `enum value not used' */
4525 if (term
->vt52_mode
)
4526 p
+= sprintf((char *) p
, "\x1B%c", xkey
);
4528 int app_flg
= (term
->app_cursor_keys
&& !term
->cfg
.no_applic_c
);
4530 /* Useful mapping of Ctrl-arrows */
4531 if (modifiers
== PKM_CONTROL
)
4535 p
+= sprintf((char *) p
, "\x1BO%c", xkey
);
4537 p
+= sprintf((char *) p
, "\x1B[%c", xkey
);
4543 if (p
> output
|| tlen
> 0) {
4545 * Interrupt an ongoing paste. I'm not sure
4546 * this is sensible, but for the moment it's
4547 * preferable to having to faff about buffering
4553 * We need not bother about stdin backlogs
4554 * here, because in GUI PuTTY we can't do
4555 * anything about it anyway; there's no means
4556 * of asking Windows to hold off on KEYDOWN
4557 * messages. We _have_ to buffer everything
4560 term_seen_key_event(term
);
4564 fprintf(stderr
, "sending ESC\n");
4566 ldisc_send(term
->ldisc
, "\x1b", 1, 1);
4571 fprintf(stderr
, "sending %d bytes:", p
- output
);
4572 for (i
= 0; i
< p
- output
; i
++)
4573 fprintf(stderr
, " %02x", output
[i
]);
4574 fprintf(stderr
, "\n");
4576 ldisc_send(term
->ldisc
, output
, p
- output
, 1);
4577 } else if (tlen
> 0) {
4579 fprintf(stderr
, "sending %d unichars:", tlen
);
4580 for (i
= 0; i
< tlen
; i
++)
4581 fprintf(stderr
, " %04x", (unsigned) text
[i
]);
4582 fprintf(stderr
, "\n");
4584 luni_send(term
->ldisc
, text
, tlen
, 1);
4589 void term_nopaste(Terminal
*term
)
4591 if (term
->paste_len
== 0)
4593 sfree(term
->paste_buffer
);
4594 term
->paste_buffer
= NULL
;
4595 term
->paste_len
= 0;
4598 int term_paste_pending(Terminal
*term
)
4600 return term
->paste_len
!= 0;
4603 void term_paste(Terminal
*term
)
4605 long now
, paste_diff
;
4607 if (term
->paste_len
== 0)
4610 /* Don't wait forever to paste */
4611 if (term
->paste_hold
) {
4612 now
= GETTICKCOUNT();
4613 paste_diff
= now
- term
->last_paste
;
4614 if (paste_diff
>= 0 && paste_diff
< 450)
4617 term
->paste_hold
= 0;
4619 while (term
->paste_pos
< term
->paste_len
) {
4621 while (n
+ term
->paste_pos
< term
->paste_len
) {
4622 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
4626 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
4627 term
->paste_pos
+= n
;
4629 if (term
->paste_pos
< term
->paste_len
) {
4630 term
->paste_hold
= 1;
4634 sfree(term
->paste_buffer
);
4635 term
->paste_buffer
= NULL
;
4636 term
->paste_len
= 0;
4639 static void deselect(Terminal
*term
)
4641 term
->selstate
= NO_SELECTION
;
4642 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
4645 void term_deselect(Terminal
*term
)
4651 int term_ldisc(Terminal
*term
, int option
)
4653 if (option
== LD_ECHO
)
4654 return term
->term_echoing
;
4655 if (option
== LD_EDIT
)
4656 return term
->term_editing
;
4661 * from_backend(), to get data from the backend for the terminal.
4663 int from_backend(void *vterm
, int is_stderr
, const char *data
, int len
)
4665 Terminal
*term
= (Terminal
*)vterm
;
4669 bufchain_add(&term
->inbuf
, data
, len
);
4672 * term_out() always completely empties inbuf. Therefore,
4673 * there's no reason at all to return anything other than zero
4674 * from this function, because there _can't_ be a question of
4675 * the remote side needing to wait until term_out() has cleared
4678 * This is a slightly suboptimal way to deal with SSH2 - in
4679 * principle, the window mechanism would allow us to continue
4680 * to accept data on forwarded ports and X connections even
4681 * while the terminal processing was going slowly - but we
4682 * can't do the 100% right thing without moving the terminal
4683 * processing into a separate thread, and that might hurt
4684 * portability. So we manage stdout buffering the old SSH1 way:
4685 * if the terminal processing goes slowly, the whole SSH
4686 * connection stops accepting data until it's ready.
4688 * In practice, I can't imagine this causing serious trouble.
4693 void term_provide_logctx(Terminal
*term
, void *logctx
)
4695 term
->logctx
= logctx
;