410d8bb5800cbad480bb5a45959948c3106f5efc
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 * Internal prototypes.
65 static void do_paint(Terminal
*, Context
, int);
66 static void erase_lots(Terminal
*, int, int, int);
67 static void swap_screen(Terminal
*, int, int, int);
68 static void update_sbar(Terminal
*);
69 static void deselect(Terminal
*);
70 static void term_print_finish(Terminal
*);
71 #ifdef OPTIMISE_SCROLL
72 static void scroll_display(Terminal
*, int, int, int);
73 #endif /* OPTIMISE_SCROLL */
76 * Resize a line to make it `cols' columns wide.
78 unsigned long *resizeline(unsigned long *line
, int cols
)
81 unsigned long lineattrs
;
83 if (line
[0] != (unsigned long)cols
) {
85 * This line is the wrong length, which probably means it
86 * hasn't been accessed since a resize. Resize it now.
89 lineattrs
= line
[oldlen
+ 1];
90 line
= srealloc(line
, TSIZE
* (2 + cols
));
92 for (i
= oldlen
; i
< cols
; i
++)
93 line
[i
+ 1] = ERASE_CHAR
;
94 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
101 * Retrieve a line of the screen or of the scrollback, according to
102 * whether the y coordinate is non-negative or negative
105 unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
107 unsigned long *line
, *newline
;
112 whichtree
= term
->screen
;
115 whichtree
= term
->scrollback
;
116 treeindex
= y
+ count234(term
->scrollback
);
118 line
= index234(whichtree
, treeindex
);
120 /* We assume that we don't screw up and retrieve something out of range. */
121 assert(line
!= NULL
);
123 newline
= resizeline(line
, term
->cols
);
124 if (newline
!= line
) {
125 delpos234(whichtree
, treeindex
);
126 addpos234(whichtree
, newline
, treeindex
);
133 #define lineptr(x) lineptr(term,x,__LINE__)
136 * Set up power-on settings for the terminal.
138 static void power_on(Terminal
*term
)
140 term
->curs
.x
= term
->curs
.y
= 0;
141 term
->alt_x
= term
->alt_y
= 0;
142 term
->savecurs
.x
= term
->savecurs
.y
= 0;
143 term
->alt_t
= term
->marg_t
= 0;
144 if (term
->rows
!= -1)
145 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
147 term
->alt_b
= term
->marg_b
= 0;
148 if (term
->cols
!= -1) {
150 for (i
= 0; i
< term
->cols
; i
++)
151 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
153 term
->alt_om
= term
->dec_om
= cfg
.dec_om
;
154 term
->alt_ins
= term
->insert
= FALSE
;
155 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
156 term
->alt_wrap
= term
->wrap
= cfg
.wrap_mode
;
157 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
158 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
160 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
161 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
163 term
->in_vbell
= FALSE
;
165 term
->big_cursor
= 0;
166 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
167 term
->term_editing
= term
->term_echoing
= FALSE
;
168 term
->app_cursor_keys
= cfg
.app_cursor
;
169 term
->app_keypad_keys
= cfg
.app_keypad
;
170 term
->use_bce
= cfg
.bce
;
171 term
->blink_is_real
= cfg
.blinktext
;
172 term
->erase_char
= ERASE_CHAR
;
174 term_print_finish(term
);
177 for (i
= 0; i
< 256; i
++)
178 term
->wordness
[i
] = cfg
.wordness
[i
];
181 swap_screen(term
, 1, FALSE
, FALSE
);
182 erase_lots(term
, FALSE
, TRUE
, TRUE
);
183 swap_screen(term
, 0, FALSE
, FALSE
);
184 erase_lots(term
, FALSE
, TRUE
, TRUE
);
189 * Force a screen update.
191 void term_update(Terminal
*term
)
194 ctx
= get_ctx(term
->frontend
);
196 int need_sbar_update
= term
->seen_disp_event
;
197 if (term
->seen_disp_event
&& cfg
.scroll_on_disp
) {
198 term
->disptop
= 0; /* return to main screen */
199 term
->seen_disp_event
= 0;
200 need_sbar_update
= TRUE
;
202 if (need_sbar_update
)
204 do_paint(term
, ctx
, TRUE
);
205 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
211 * Called from front end when a keypress occurs, to trigger
212 * anything magical that needs to happen in that situation.
214 void term_seen_key_event(Terminal
*term
)
217 * On any keypress, clear the bell overload mechanism
218 * completely, on the grounds that large numbers of
219 * beeps coming from deliberate key action are likely
220 * to be intended (e.g. beeps from filename completion
221 * blocking repeatedly).
223 term
->beep_overloaded
= FALSE
;
224 while (term
->beephead
) {
225 struct beeptime
*tmp
= term
->beephead
;
226 term
->beephead
= tmp
->next
;
229 term
->beeptail
= NULL
;
233 * Reset the scrollback on keypress, if we're doing that.
235 if (cfg
.scroll_on_key
) {
236 term
->disptop
= 0; /* return to main screen */
237 term
->seen_disp_event
= 1;
242 * Same as power_on(), but an external function.
244 void term_pwron(Terminal
*term
)
247 if (term
->ldisc
) /* cause ldisc to notice changes */
248 ldisc_send(term
->ldisc
, NULL
, 0, 0);
256 * When the user reconfigures us, we need to check the forbidden-
257 * alternate-screen config option, disable raw mouse mode if the
258 * user has disabled mouse reporting, and abandon a print job if
259 * the user has disabled printing.
261 void term_reconfig(Terminal
*term
)
263 if (cfg
.no_alt_screen
)
264 swap_screen(term
, 0, FALSE
, FALSE
);
265 if (cfg
.no_mouse_rep
) {
266 term
->xterm_mouse
= 0;
267 set_raw_mouse_mode(term
->frontend
, 0);
269 if (cfg
.no_remote_charset
) {
270 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
271 term
->sco_acs
= term
->alt_sco_acs
= 0;
275 term_print_finish(term
);
280 * Clear the scrollback.
282 void term_clrsb(Terminal
*term
)
286 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
293 * Initialise the terminal.
295 Terminal
*term_init(void *frontend
)
300 * Allocate a new Terminal structure and initialise the fields
303 term
= smalloc(sizeof(Terminal
));
304 term
->frontend
= frontend
;
306 term
->compatibility_level
= TM_PUTTY
;
307 strcpy(term
->id_string
, "\033[?6c");
308 term
->last_blink
= term
->last_tblink
= 0;
309 term
->paste_buffer
= NULL
;
310 term
->last_paste
= 0;
311 bufchain_init(&term
->inbuf
);
312 bufchain_init(&term
->printer_buf
);
313 term
->printing
= term
->only_printing
= FALSE
;
314 term
->print_job
= NULL
;
315 term
->vt52_mode
= FALSE
;
316 term
->cr_lf_return
= FALSE
;
317 term
->seen_disp_event
= FALSE
;
318 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
319 term
->reset_132
= FALSE
;
320 term
->blinker
= term
->tblinker
= 0;
322 term
->repeat_off
= FALSE
;
323 term
->termstate
= TOPLEVEL
;
324 term
->selstate
= NO_SELECTION
;
327 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
329 term
->disptext
= term
->dispcurs
= NULL
;
332 term
->rows
= term
->cols
= -1;
334 term
->beephead
= term
->beeptail
= NULL
;
336 term
->lastbeep
= FALSE
;
337 term
->beep_overloaded
= FALSE
;
338 term
->resize_fn
= NULL
;
339 term
->resize_ctx
= NULL
;
345 * Set up the terminal for a given size.
347 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
350 unsigned long *newdisp
, *line
;
353 int save_alt_which
= term
->alt_which
;
355 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
356 newsavelines
== term
->savelines
)
357 return; /* nothing to do */
360 swap_screen(term
, 0, FALSE
, FALSE
);
362 term
->alt_t
= term
->marg_t
= 0;
363 term
->alt_b
= term
->marg_b
= newrows
- 1;
365 if (term
->rows
== -1) {
366 term
->scrollback
= newtree234(NULL
);
367 term
->screen
= newtree234(NULL
);
372 * Resize the screen and scrollback. We only need to shift
373 * lines around within our data structures, because lineptr()
374 * will take care of resizing each individual line if
377 * - If the new screen and the old screen differ in length, we
378 * must shunt some lines in from the scrollback or out to
381 * - If doing that fails to provide us with enough material to
382 * fill the new screen (i.e. the number of rows needed in
383 * the new screen exceeds the total number in the previous
384 * screen+scrollback), we must invent some blank lines to
387 * - Then, if the new scrollback length is less than the
388 * amount of scrollback we actually have, we must throw some
391 sblen
= count234(term
->scrollback
);
392 /* Do this loop to expand the screen if newrows > rows */
393 for (i
= term
->rows
; i
< newrows
; i
++) {
395 line
= delpos234(term
->scrollback
, --sblen
);
397 line
= smalloc(TSIZE
* (newcols
+ 2));
399 for (j
= 0; j
<= newcols
; j
++)
400 line
[j
+ 1] = ERASE_CHAR
;
402 addpos234(term
->screen
, line
, 0);
404 /* Do this loop to shrink the screen if newrows < rows */
405 for (i
= newrows
; i
< term
->rows
; i
++) {
406 line
= delpos234(term
->screen
, 0);
407 addpos234(term
->scrollback
, line
, sblen
++);
409 assert(count234(term
->screen
) == newrows
);
410 while (sblen
> newsavelines
) {
411 line
= delpos234(term
->scrollback
, 0);
415 assert(count234(term
->scrollback
) <= newsavelines
);
418 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
419 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
420 newdisp
[i
] = ATTR_INVALID
;
421 sfree(term
->disptext
);
422 term
->disptext
= newdisp
;
423 term
->dispcurs
= NULL
;
425 newalt
= newtree234(NULL
);
426 for (i
= 0; i
< newrows
; i
++) {
427 line
= smalloc(TSIZE
* (newcols
+ 2));
429 for (j
= 0; j
<= newcols
; j
++)
430 line
[j
+ 1] = term
->erase_char
;
431 addpos234(newalt
, line
, i
);
433 if (term
->alt_screen
) {
434 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
436 freetree234(term
->alt_screen
);
438 term
->alt_screen
= newalt
;
440 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
443 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
444 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
448 term
->curs
.y
+= newrows
- term
->rows
;
449 if (term
->curs
.y
< 0)
451 if (term
->curs
.y
>= newrows
)
452 term
->curs
.y
= newrows
- 1;
453 if (term
->curs
.x
>= newcols
)
454 term
->curs
.x
= newcols
- 1;
455 term
->alt_x
= term
->alt_y
= 0;
456 term
->wrapnext
= term
->alt_wnext
= FALSE
;
458 term
->rows
= newrows
;
459 term
->cols
= newcols
;
460 term
->savelines
= newsavelines
;
463 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
468 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
472 * Hand a function and context pointer to the terminal which it can
473 * use to notify a back end of resizes.
475 void term_provide_resize_fn(Terminal
*term
,
476 void (*resize_fn
)(void *, int, int),
479 term
->resize_fn
= resize_fn
;
480 term
->resize_ctx
= resize_ctx
;
481 if (term
->cols
> 0 && term
->rows
> 0)
482 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
486 * Swap screens. If `reset' is TRUE and we have been asked to
487 * switch to the alternate screen, we must bring most of its
488 * configuration from the main screen and erase the contents of the
489 * alternate screen completely. (This is even true if we're already
490 * on it! Blame xterm.)
492 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
498 reset
= FALSE
; /* do no weird resetting if which==0 */
500 if (which
!= term
->alt_which
) {
501 term
->alt_which
= which
;
503 ttr
= term
->alt_screen
;
504 term
->alt_screen
= term
->screen
;
507 if (!reset
&& !keep_cur_pos
)
508 term
->curs
.x
= term
->alt_x
;
511 if (!reset
&& !keep_cur_pos
)
512 term
->curs
.y
= term
->alt_y
;
515 if (!reset
) term
->marg_t
= term
->alt_t
;
518 if (!reset
) term
->marg_b
= term
->alt_b
;
521 if (!reset
) term
->dec_om
= term
->alt_om
;
524 if (!reset
) term
->wrap
= term
->alt_wrap
;
527 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
530 if (!reset
) term
->insert
= term
->alt_ins
;
533 if (!reset
) term
->cset
= term
->alt_cset
;
536 if (!reset
) term
->utf
= term
->alt_utf
;
539 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
540 term
->alt_sco_acs
= t
;
543 if (reset
&& term
->screen
) {
545 * Yes, this _is_ supposed to honour background-colour-erase.
547 erase_lots(term
, FALSE
, TRUE
, TRUE
);
551 * This might not be possible if we're called during
559 * Update the scroll bar.
561 static void update_sbar(Terminal
*term
)
565 nscroll
= count234(term
->scrollback
);
567 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
568 nscroll
+ term
->disptop
, term
->rows
);
572 * Check whether the region bounded by the two pointers intersects
573 * the scroll region, and de-select the on-screen selection if so.
575 static void check_selection(Terminal
*term
, pos from
, pos to
)
577 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
582 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
583 * for backward.) `sb' is TRUE if the scrolling is permitted to
584 * affect the scrollback buffer.
586 * NB this function invalidates all pointers into lines of the
587 * screen data structures. In particular, you MUST call fix_cpos
588 * after calling scroll() and before doing anything else that
589 * uses the cpos shortcut pointer.
591 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
593 unsigned long *line
, *line2
;
596 if (topline
!= 0 || term
->alt_which
!= 0)
601 line
= delpos234(term
->screen
, botline
);
602 line
= resizeline(line
, term
->cols
);
603 for (i
= 0; i
< term
->cols
; i
++)
604 line
[i
+ 1] = term
->erase_char
;
605 line
[term
->cols
+ 1] = 0;
606 addpos234(term
->screen
, line
, topline
);
608 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
610 if (term
->selstart
.y
> botline
) {
611 term
->selstart
.y
= botline
;
612 term
->selstart
.x
= 0;
615 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
617 if (term
->selend
.y
> botline
) {
618 term
->selend
.y
= botline
;
627 line
= delpos234(term
->screen
, topline
);
628 if (sb
&& term
->savelines
> 0) {
629 int sblen
= count234(term
->scrollback
);
631 * We must add this line to the scrollback. We'll
632 * remove a line from the top of the scrollback to
633 * replace it, or allocate a new one if the
634 * scrollback isn't full.
636 if (sblen
== term
->savelines
) {
637 sblen
--, line2
= delpos234(term
->scrollback
, 0);
639 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
640 line2
[0] = term
->cols
;
642 addpos234(term
->scrollback
, line
, sblen
);
646 * If the user is currently looking at part of the
647 * scrollback, and they haven't enabled any options
648 * that are going to reset the scrollback as a
649 * result of this movement, then the chances are
650 * they'd like to keep looking at the same line. So
651 * we move their viewpoint at the same rate as the
652 * scroll, at least until their viewpoint hits the
653 * top end of the scrollback buffer, at which point
654 * we don't have the choice any more.
656 * Thanks to Jan Holmen Holsten for the idea and
657 * initial implementation.
659 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
662 line
= resizeline(line
, term
->cols
);
663 for (i
= 0; i
< term
->cols
; i
++)
664 line
[i
+ 1] = term
->erase_char
;
665 line
[term
->cols
+ 1] = 0;
666 addpos234(term
->screen
, line
, botline
);
669 * If the selection endpoints move into the scrollback,
670 * we keep them moving until they hit the top. However,
671 * of course, if the line _hasn't_ moved into the
672 * scrollback then we don't do this, and cut them off
673 * at the top of the scroll region.
675 * This applies to selstart and selend (for an existing
676 * selection), and also selanchor (for one being
677 * selected as we speak).
679 seltop
= sb ?
-term
->savelines
: topline
;
681 if (term
->selstart
.y
>= seltop
&&
682 term
->selstart
.y
<= botline
) {
684 if (term
->selstart
.y
< seltop
) {
685 term
->selstart
.y
= seltop
;
686 term
->selstart
.x
= 0;
689 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
691 if (term
->selend
.y
< seltop
) {
692 term
->selend
.y
= seltop
;
696 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
698 if (term
->selanchor
.y
< seltop
) {
699 term
->selanchor
.y
= seltop
;
700 term
->selanchor
.x
= 0;
709 #ifdef OPTIMISE_SCROLL
711 * Scroll the physical display, and our conception of it in disptext.
713 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
715 unsigned long *start
, *end
;
716 int distance
, size
, i
;
718 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
719 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
720 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
721 size
= end
- start
- distance
;
723 memmove(start
, start
+ distance
, size
* TSIZE
);
724 for (i
= 0; i
< distance
; i
++)
725 (start
+ size
)[i
] |= ATTR_INVALID
;
727 memmove(start
+ distance
, start
, size
* TSIZE
);
728 for (i
= 0; i
< distance
; i
++)
729 start
[i
] |= ATTR_INVALID
;
731 do_scroll(term
->frontend
, topline
, botline
, lines
);
733 #endif /* OPTIMISE_SCROLL */
736 * Move the cursor to a given position, clipping at boundaries. We
737 * may or may not want to clip at the scroll margin: marg_clip is 0
738 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
739 * even _being_ outside the margins.
741 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
748 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
751 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
762 term
->wrapnext
= FALSE
;
766 * Save or restore the cursor and SGR mode.
768 static void save_cursor(Terminal
*term
, int save
)
771 term
->savecurs
= term
->curs
;
772 term
->save_attr
= term
->curr_attr
;
773 term
->save_cset
= term
->cset
;
774 term
->save_utf
= term
->utf
;
775 term
->save_wnext
= term
->wrapnext
;
776 term
->save_csattr
= term
->cset_attr
[term
->cset
];
777 term
->save_sco_acs
= term
->sco_acs
;
779 term
->curs
= term
->savecurs
;
780 /* Make sure the window hasn't shrunk since the save */
781 if (term
->curs
.x
>= term
->cols
)
782 term
->curs
.x
= term
->cols
- 1;
783 if (term
->curs
.y
>= term
->rows
)
784 term
->curs
.y
= term
->rows
- 1;
786 term
->curr_attr
= term
->save_attr
;
787 term
->cset
= term
->save_cset
;
788 term
->utf
= term
->save_utf
;
789 term
->wrapnext
= term
->save_wnext
;
791 * wrapnext might reset to False if the x position is no
792 * longer at the rightmost edge.
794 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
795 term
->wrapnext
= FALSE
;
796 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
797 term
->sco_acs
= term
->save_sco_acs
;
800 term
->erase_char
= (' ' | ATTR_ASCII
|
802 (ATTR_FGMASK
| ATTR_BGMASK
)));
807 * Erase a large portion of the screen: the whole screen, or the
808 * whole line, or parts thereof.
810 static void erase_lots(Terminal
*term
,
811 int line_only
, int from_begin
, int to_end
)
815 unsigned long *ldata
;
818 start
.y
= term
->curs
.y
;
820 end
.y
= term
->curs
.y
+ 1;
837 check_selection(term
, start
, end
);
839 /* Clear screen also forces a full window redraw, just in case. */
840 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
841 term_invalidate(term
);
843 ldata
= lineptr(start
.y
);
844 while (poslt(start
, end
)) {
845 if (start
.x
== term
->cols
&& !erase_lattr
)
846 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
848 ldata
[start
.x
] = term
->erase_char
;
849 if (incpos(start
) && start
.y
< term
->rows
)
850 ldata
= lineptr(start
.y
);
855 * Insert or delete characters within the current line. n is +ve if
856 * insertion is desired, and -ve for deletion.
858 static void insch(Terminal
*term
, int n
)
860 int dir
= (n
< 0 ?
-1 : +1);
863 unsigned long *ldata
;
865 n
= (n
< 0 ?
-n
: n
);
866 if (n
> term
->cols
- term
->curs
.x
)
867 n
= term
->cols
- term
->curs
.x
;
868 m
= term
->cols
- term
->curs
.x
- n
;
869 cursplus
.y
= term
->curs
.y
;
870 cursplus
.x
= term
->curs
.x
+ n
;
871 check_selection(term
, term
->curs
, cursplus
);
872 ldata
= lineptr(term
->curs
.y
);
874 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
876 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
878 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
880 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
885 * Toggle terminal mode `mode' to state `state'. (`query' indicates
886 * whether the mode is a DEC private one or a normal one.)
888 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
894 case 1: /* application cursor keys */
895 term
->app_cursor_keys
= state
;
897 case 2: /* VT52 mode */
898 term
->vt52_mode
= !state
;
899 if (term
->vt52_mode
) {
900 term
->blink_is_real
= FALSE
;
901 term
->vt52_bold
= FALSE
;
903 term
->blink_is_real
= cfg
.blinktext
;
906 case 3: /* 80/132 columns */
908 if (!cfg
.no_remote_resize
)
909 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
910 term
->reset_132
= state
;
912 case 5: /* reverse video */
914 * Toggle reverse video. If we receive an OFF within the
915 * visual bell timeout period after an ON, we trigger an
916 * effective visual bell, so that ESC[?5hESC[?5l will
917 * always be an actually _visible_ visual bell.
919 ticks
= GETTICKCOUNT();
920 /* turn off a previous vbell to avoid inconsistencies */
921 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
922 term
->in_vbell
= FALSE
;
923 if (term
->rvideo
&& !state
&& /* we're turning it off... */
924 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
925 /* If there's no vbell timeout already, or this one lasts
926 * longer, replace vbell_timeout with ours. */
927 if (!term
->in_vbell
||
928 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
930 term
->vbell_startpoint
= term
->rvbell_startpoint
;
931 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
932 } else if (!term
->rvideo
&& state
) {
933 /* This is an ON, so we notice the time and save it. */
934 term
->rvbell_startpoint
= ticks
;
936 term
->rvideo
= state
;
937 term
->seen_disp_event
= TRUE
;
941 case 6: /* DEC origin mode */
942 term
->dec_om
= state
;
944 case 7: /* auto wrap */
947 case 8: /* auto key repeat */
948 term
->repeat_off
= !state
;
950 case 10: /* set local edit mode */
951 term
->term_editing
= state
;
952 if (term
->ldisc
) /* cause ldisc to notice changes */
953 ldisc_send(term
->ldisc
, NULL
, 0, 0);
955 case 25: /* enable/disable cursor */
956 compatibility2(OTHER
, VT220
);
957 term
->cursor_on
= state
;
958 term
->seen_disp_event
= TRUE
;
960 case 47: /* alternate screen */
961 compatibility(OTHER
);
963 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
966 case 1000: /* xterm mouse 1 */
967 term
->xterm_mouse
= state ?
1 : 0;
968 set_raw_mouse_mode(term
->frontend
, state
);
970 case 1002: /* xterm mouse 2 */
971 term
->xterm_mouse
= state ?
2 : 0;
972 set_raw_mouse_mode(term
->frontend
, state
);
974 case 1047: /* alternate screen */
975 compatibility(OTHER
);
977 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
980 case 1048: /* save/restore cursor */
981 save_cursor(term
, state
);
982 if (!state
) term
->seen_disp_event
= TRUE
;
984 case 1049: /* cursor & alternate screen */
986 save_cursor(term
, state
);
987 if (!state
) term
->seen_disp_event
= TRUE
;
988 compatibility(OTHER
);
990 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
992 save_cursor(term
, state
);
997 case 4: /* set insert mode */
998 compatibility(VT102
);
999 term
->insert
= state
;
1001 case 12: /* set echo mode */
1002 term
->term_echoing
= !state
;
1003 if (term
->ldisc
) /* cause ldisc to notice changes */
1004 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1006 case 20: /* Return sends ... */
1007 term
->cr_lf_return
= state
;
1009 case 34: /* Make cursor BIG */
1010 compatibility2(OTHER
, VT220
);
1011 term
->big_cursor
= !state
;
1016 * Process an OSC sequence: set window title or icon name.
1018 static void do_osc(Terminal
*term
)
1021 while (term
->osc_strlen
--)
1022 term
->wordness
[(unsigned char)
1023 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1025 term
->osc_string
[term
->osc_strlen
] = '\0';
1026 switch (term
->esc_args
[0]) {
1029 if (!cfg
.no_remote_wintitle
)
1030 set_icon(term
->frontend
, term
->osc_string
);
1031 if (term
->esc_args
[0] == 1)
1033 /* fall through: parameter 0 means set both */
1036 if (!cfg
.no_remote_wintitle
)
1037 set_title(term
->frontend
, term
->osc_string
);
1044 * ANSI printing routines.
1046 static void term_print_setup(Terminal
*term
)
1048 bufchain_clear(&term
->printer_buf
);
1049 term
->print_job
= printer_start_job(cfg
.printer
);
1051 static void term_print_flush(Terminal
*term
)
1056 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1057 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1060 printer_job_data(term
->print_job
, data
, len
);
1061 bufchain_consume(&term
->printer_buf
, len
);
1064 static void term_print_finish(Terminal
*term
)
1070 if (!term
->printing
&& !term
->only_printing
)
1071 return; /* we need do nothing */
1073 term_print_flush(term
);
1074 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1075 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1077 if (c
== '\033' || c
== '\233') {
1078 bufchain_consume(&term
->printer_buf
, size
);
1081 printer_job_data(term
->print_job
, &c
, 1);
1082 bufchain_consume(&term
->printer_buf
, 1);
1085 printer_finish_job(term
->print_job
);
1086 term
->print_job
= NULL
;
1087 term
->printing
= term
->only_printing
= FALSE
;
1091 * Remove everything currently in `inbuf' and stick it up on the
1092 * in-memory display. There's a big state machine in here to
1093 * process escape sequences...
1095 void term_out(Terminal
*term
)
1098 unsigned char localbuf
[256], *chars
;
1103 chars
= NULL
; /* placate compiler warnings */
1104 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1108 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1109 if (nchars
> sizeof(localbuf
))
1110 nchars
= sizeof(localbuf
);
1111 memcpy(localbuf
, ret
, nchars
);
1112 bufchain_consume(&term
->inbuf
, nchars
);
1114 assert(chars
!= NULL
);
1120 * Optionally log the session traffic to a file. Useful for
1121 * debugging and possibly also useful for actual logging.
1123 if (cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1124 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1130 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1131 * be able to display 8-bit characters, but I'll let that go 'cause
1136 * If we're printing, add the character to the printer
1139 if (term
->printing
) {
1140 bufchain_add(&term
->printer_buf
, &c
, 1);
1143 * If we're in print-only mode, we use a much simpler
1144 * state machine designed only to recognise the ESC[4i
1145 * termination sequence.
1147 if (term
->only_printing
) {
1149 term
->print_state
= 1;
1150 else if (c
== (unsigned char)'\233')
1151 term
->print_state
= 2;
1152 else if (c
== '[' && term
->print_state
== 1)
1153 term
->print_state
= 2;
1154 else if (c
== '4' && term
->print_state
== 2)
1155 term
->print_state
= 3;
1156 else if (c
== 'i' && term
->print_state
== 3)
1157 term
->print_state
= 4;
1159 term
->print_state
= 0;
1160 if (term
->print_state
== 4) {
1161 term_print_finish(term
);
1167 /* First see about all those translations. */
1168 if (term
->termstate
== TOPLEVEL
) {
1170 switch (term
->utf_state
) {
1173 /* UTF-8 must be stateless so we ignore iso2022. */
1174 if (unitab_ctrl
[c
] != 0xFF)
1176 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1178 } else if ((c
& 0xe0) == 0xc0) {
1179 term
->utf_size
= term
->utf_state
= 1;
1180 term
->utf_char
= (c
& 0x1f);
1181 } else if ((c
& 0xf0) == 0xe0) {
1182 term
->utf_size
= term
->utf_state
= 2;
1183 term
->utf_char
= (c
& 0x0f);
1184 } else if ((c
& 0xf8) == 0xf0) {
1185 term
->utf_size
= term
->utf_state
= 3;
1186 term
->utf_char
= (c
& 0x07);
1187 } else if ((c
& 0xfc) == 0xf8) {
1188 term
->utf_size
= term
->utf_state
= 4;
1189 term
->utf_char
= (c
& 0x03);
1190 } else if ((c
& 0xfe) == 0xfc) {
1191 term
->utf_size
= term
->utf_state
= 5;
1192 term
->utf_char
= (c
& 0x01);
1203 if ((c
& 0xC0) != 0x80) {
1206 term
->utf_state
= 0;
1209 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1210 if (--term
->utf_state
)
1215 /* Is somebody trying to be evil! */
1217 (c
< 0x800 && term
->utf_size
>= 2) ||
1218 (c
< 0x10000 && term
->utf_size
>= 3) ||
1219 (c
< 0x200000 && term
->utf_size
>= 4) ||
1220 (c
< 0x4000000 && term
->utf_size
>= 5))
1223 /* Unicode line separator and paragraph separator are CR-LF */
1224 if (c
== 0x2028 || c
== 0x2029)
1227 /* High controls are probably a Baaad idea too. */
1231 /* The UTF-16 surrogates are not nice either. */
1232 /* The standard give the option of decoding these:
1233 * I don't want to! */
1234 if (c
>= 0xD800 && c
< 0xE000)
1237 /* ISO 10646 characters now limited to UTF-16 range. */
1241 /* This is currently a TagPhobic application.. */
1242 if (c
>= 0xE0000 && c
<= 0xE007F)
1245 /* U+FEFF is best seen as a null. */
1248 /* But U+FFFE is an error. */
1249 if (c
== 0xFFFE || c
== 0xFFFF)
1252 /* Oops this is a 16bit implementation */
1257 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1258 else if(term
->sco_acs
&&
1259 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1261 if (term
->sco_acs
== 2) c
^= 0x80;
1264 switch (term
->cset_attr
[term
->cset
]) {
1266 * Linedraw characters are different from 'ESC ( B'
1267 * only for a small range. For ones outside that
1268 * range, make sure we use the same font as well as
1269 * the same encoding.
1272 if (unitab_ctrl
[c
] != 0xFF)
1275 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1279 /* If UK-ASCII, make the '#' a LineDraw Pound */
1281 c
= '}' | ATTR_LINEDRW
;
1284 /*FALLTHROUGH*/ case ATTR_ASCII
:
1285 if (unitab_ctrl
[c
] != 0xFF)
1288 c
= ((unsigned char) c
) | ATTR_ASCII
;
1291 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1297 /* How about C1 controls ? */
1298 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1299 !term
->vt52_mode
&& has_compat(VT220
)) {
1300 term
->termstate
= SEEN_ESC
;
1301 term
->esc_query
= FALSE
;
1302 c
= '@' + (c
& 0x1F);
1305 /* Or the GL control. */
1306 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1307 if (term
->curs
.x
&& !term
->wrapnext
)
1309 term
->wrapnext
= FALSE
;
1311 if (!cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1312 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1314 /* Or normal C0 controls. */
1315 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1317 case '\005': /* terminal type query */
1318 /* Strictly speaking this is VT100 but a VT100 defaults to
1319 * no response. Other terminals respond at their option.
1321 * Don't put a CR in the default string as this tends to
1322 * upset some weird software.
1324 * An xterm returns "xterm" (5 characters)
1326 compatibility(ANSIMIN
);
1328 char abuf
[256], *s
, *d
;
1330 for (s
= cfg
.answerback
, d
= abuf
; *s
; s
++) {
1332 if (*s
>= 'a' && *s
<= 'z')
1333 *d
++ = (*s
- ('a' - 1));
1334 else if ((*s
>= '@' && *s
<= '_') ||
1335 *s
== '?' || (*s
& 0x80))
1340 } else if (*s
== '^') {
1345 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1351 struct beeptime
*newbeep
;
1352 unsigned long ticks
;
1354 ticks
= GETTICKCOUNT();
1356 if (!term
->beep_overloaded
) {
1357 newbeep
= smalloc(sizeof(struct beeptime
));
1358 newbeep
->ticks
= ticks
;
1359 newbeep
->next
= NULL
;
1360 if (!term
->beephead
)
1361 term
->beephead
= newbeep
;
1363 term
->beeptail
->next
= newbeep
;
1364 term
->beeptail
= newbeep
;
1369 * Throw out any beeps that happened more than
1372 while (term
->beephead
&&
1373 term
->beephead
->ticks
< ticks
- cfg
.bellovl_t
) {
1374 struct beeptime
*tmp
= term
->beephead
;
1375 term
->beephead
= tmp
->next
;
1377 if (!term
->beephead
)
1378 term
->beeptail
= NULL
;
1382 if (cfg
.bellovl
&& term
->beep_overloaded
&&
1383 ticks
- term
->lastbeep
>= (unsigned)cfg
.bellovl_s
) {
1385 * If we're currently overloaded and the
1386 * last beep was more than s seconds ago,
1387 * leave overload mode.
1389 term
->beep_overloaded
= FALSE
;
1390 } else if (cfg
.bellovl
&& !term
->beep_overloaded
&&
1391 term
->nbeeps
>= cfg
.bellovl_n
) {
1393 * Now, if we have n or more beeps
1394 * remaining in the queue, go into overload
1397 term
->beep_overloaded
= TRUE
;
1399 term
->lastbeep
= ticks
;
1402 * Perform an actual beep if we're not overloaded.
1404 if (!cfg
.bellovl
|| !term
->beep_overloaded
) {
1405 beep(term
->frontend
, cfg
.beep
);
1406 if (cfg
.beep
== BELL_VISUAL
) {
1407 term
->in_vbell
= TRUE
;
1408 term
->vbell_startpoint
= ticks
;
1416 if (term
->curs
.x
== 0 &&
1417 (term
->curs
.y
== 0 || term
->wrap
== 0))
1419 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1420 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1421 else if (term
->wrapnext
)
1422 term
->wrapnext
= FALSE
;
1426 term
->seen_disp_event
= TRUE
;
1429 compatibility(VT100
);
1433 compatibility(VT100
);
1437 if (term
->vt52_mode
)
1438 term
->termstate
= VT52_ESC
;
1440 compatibility(ANSIMIN
);
1441 term
->termstate
= SEEN_ESC
;
1442 term
->esc_query
= FALSE
;
1447 term
->wrapnext
= FALSE
;
1449 term
->seen_disp_event
= TRUE
;
1450 term
->paste_hold
= 0;
1452 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1455 if (has_compat(SCOANSI
)) {
1456 move(term
, 0, 0, 0);
1457 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1459 term
->wrapnext
= FALSE
;
1460 term
->seen_disp_event
= 1;
1464 compatibility(VT100
);
1466 if (term
->curs
.y
== term
->marg_b
)
1467 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1468 else if (term
->curs
.y
< term
->rows
- 1)
1473 term
->wrapnext
= FALSE
;
1474 term
->seen_disp_event
= 1;
1475 term
->paste_hold
= 0;
1477 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1481 pos old_curs
= term
->curs
;
1482 unsigned long *ldata
= lineptr(term
->curs
.y
);
1486 } while (term
->curs
.x
< term
->cols
- 1 &&
1487 !term
->tabs
[term
->curs
.x
]);
1489 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1490 if (term
->curs
.x
>= term
->cols
/ 2)
1491 term
->curs
.x
= term
->cols
/ 2 - 1;
1493 if (term
->curs
.x
>= term
->cols
)
1494 term
->curs
.x
= term
->cols
- 1;
1498 check_selection(term
, old_curs
, term
->curs
);
1500 term
->seen_disp_event
= TRUE
;
1504 switch (term
->termstate
) {
1506 /* Only graphic characters get this far;
1507 * ctrls are stripped above */
1508 if (term
->wrapnext
&& term
->wrap
) {
1509 term
->cpos
[1] |= LATTR_WRAPPED
;
1510 if (term
->curs
.y
== term
->marg_b
)
1511 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1512 else if (term
->curs
.y
< term
->rows
- 1)
1516 term
->wrapnext
= FALSE
;
1520 if (term
->selstate
!= NO_SELECTION
) {
1521 pos cursplus
= term
->curs
;
1523 check_selection(term
, term
->curs
, cursplus
);
1525 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1527 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1529 extern int wcwidth(wchar_t ucs
);
1534 width
= wcwidth((wchar_t) c
);
1537 *term
->cpos
++ = c
| term
->curr_attr
;
1538 if (++term
->curs
.x
== term
->cols
) {
1539 *term
->cpos
|= LATTR_WRAPPED
;
1540 if (term
->curs
.y
== term
->marg_b
)
1541 scroll(term
, term
->marg_t
, term
->marg_b
,
1543 else if (term
->curs
.y
< term
->rows
- 1)
1548 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1551 *term
->cpos
++ = c
| term
->curr_attr
;
1558 if (term
->curs
.x
== term
->cols
) {
1561 term
->wrapnext
= TRUE
;
1562 if (term
->wrap
&& term
->vt52_mode
) {
1563 term
->cpos
[1] |= LATTR_WRAPPED
;
1564 if (term
->curs
.y
== term
->marg_b
)
1565 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1566 else if (term
->curs
.y
< term
->rows
- 1)
1570 term
->wrapnext
= FALSE
;
1573 term
->seen_disp_event
= 1;
1578 * This state is virtually identical to SEEN_ESC, with the
1579 * exception that we have an OSC sequence in the pipeline,
1580 * and _if_ we see a backslash, we process it.
1584 term
->termstate
= TOPLEVEL
;
1587 /* else fall through */
1589 if (c
>= ' ' && c
<= '/') {
1590 if (term
->esc_query
)
1591 term
->esc_query
= -1;
1593 term
->esc_query
= c
;
1596 term
->termstate
= TOPLEVEL
;
1597 switch (ANSI(c
, term
->esc_query
)) {
1598 case '[': /* enter CSI mode */
1599 term
->termstate
= SEEN_CSI
;
1600 term
->esc_nargs
= 1;
1601 term
->esc_args
[0] = ARG_DEFAULT
;
1602 term
->esc_query
= FALSE
;
1604 case ']': /* xterm escape sequences */
1605 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1606 compatibility(OTHER
);
1607 term
->termstate
= SEEN_OSC
;
1608 term
->esc_args
[0] = 0;
1610 case '7': /* save cursor */
1611 compatibility(VT100
);
1612 save_cursor(term
, TRUE
);
1614 case '8': /* restore cursor */
1615 compatibility(VT100
);
1616 save_cursor(term
, FALSE
);
1617 term
->seen_disp_event
= TRUE
;
1620 compatibility(VT100
);
1621 term
->app_keypad_keys
= TRUE
;
1624 compatibility(VT100
);
1625 term
->app_keypad_keys
= FALSE
;
1627 case 'D': /* exactly equivalent to LF */
1628 compatibility(VT100
);
1629 if (term
->curs
.y
== term
->marg_b
)
1630 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1631 else if (term
->curs
.y
< term
->rows
- 1)
1634 term
->wrapnext
= FALSE
;
1635 term
->seen_disp_event
= TRUE
;
1637 case 'E': /* exactly equivalent to CR-LF */
1638 compatibility(VT100
);
1640 if (term
->curs
.y
== term
->marg_b
)
1641 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1642 else if (term
->curs
.y
< term
->rows
- 1)
1645 term
->wrapnext
= FALSE
;
1646 term
->seen_disp_event
= TRUE
;
1648 case 'M': /* reverse index - backwards LF */
1649 compatibility(VT100
);
1650 if (term
->curs
.y
== term
->marg_t
)
1651 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1652 else if (term
->curs
.y
> 0)
1655 term
->wrapnext
= FALSE
;
1656 term
->seen_disp_event
= TRUE
;
1658 case 'Z': /* terminal type query */
1659 compatibility(VT100
);
1661 ldisc_send(term
->ldisc
, term
->id_string
,
1662 strlen(term
->id_string
), 0);
1664 case 'c': /* restore power-on settings */
1665 compatibility(VT100
);
1667 if (term
->ldisc
) /* cause ldisc to notice changes */
1668 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1669 if (term
->reset_132
) {
1670 if (!cfg
.no_remote_resize
)
1671 request_resize(term
->frontend
, 80, term
->rows
);
1672 term
->reset_132
= 0;
1676 term
->seen_disp_event
= TRUE
;
1678 case 'H': /* set a tab */
1679 compatibility(VT100
);
1680 term
->tabs
[term
->curs
.x
] = TRUE
;
1683 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1684 compatibility(VT100
);
1686 unsigned long *ldata
;
1690 for (i
= 0; i
< term
->rows
; i
++) {
1692 for (j
= 0; j
< term
->cols
; j
++)
1693 ldata
[j
] = ATTR_DEFAULT
| 'E';
1694 ldata
[term
->cols
] = 0;
1697 term
->seen_disp_event
= TRUE
;
1698 scrtop
.x
= scrtop
.y
= 0;
1700 scrbot
.y
= term
->rows
;
1701 check_selection(term
, scrtop
, scrbot
);
1705 case ANSI('3', '#'):
1706 case ANSI('4', '#'):
1707 case ANSI('5', '#'):
1708 case ANSI('6', '#'):
1709 compatibility(VT100
);
1711 unsigned long nlattr
;
1712 unsigned long *ldata
;
1713 switch (ANSI(c
, term
->esc_query
)) {
1714 case ANSI('3', '#'):
1717 case ANSI('4', '#'):
1720 case ANSI('5', '#'):
1721 nlattr
= LATTR_NORM
;
1723 default: /* spiritually case ANSI('6', '#'): */
1724 nlattr
= LATTR_WIDE
;
1727 ldata
= lineptr(term
->curs
.y
);
1728 ldata
[term
->cols
] &= ~LATTR_MODE
;
1729 ldata
[term
->cols
] |= nlattr
;
1733 case ANSI('A', '('):
1734 compatibility(VT100
);
1735 if (!cfg
.no_remote_charset
)
1736 term
->cset_attr
[0] = ATTR_GBCHR
;
1738 case ANSI('B', '('):
1739 compatibility(VT100
);
1740 if (!cfg
.no_remote_charset
)
1741 term
->cset_attr
[0] = ATTR_ASCII
;
1743 case ANSI('0', '('):
1744 compatibility(VT100
);
1745 if (!cfg
.no_remote_charset
)
1746 term
->cset_attr
[0] = ATTR_LINEDRW
;
1748 case ANSI('U', '('):
1749 compatibility(OTHER
);
1750 if (!cfg
.no_remote_charset
)
1751 term
->cset_attr
[0] = ATTR_SCOACS
;
1754 case ANSI('A', ')'):
1755 compatibility(VT100
);
1756 if (!cfg
.no_remote_charset
)
1757 term
->cset_attr
[1] = ATTR_GBCHR
;
1759 case ANSI('B', ')'):
1760 compatibility(VT100
);
1761 if (!cfg
.no_remote_charset
)
1762 term
->cset_attr
[1] = ATTR_ASCII
;
1764 case ANSI('0', ')'):
1765 compatibility(VT100
);
1766 if (!cfg
.no_remote_charset
)
1767 term
->cset_attr
[1] = ATTR_LINEDRW
;
1769 case ANSI('U', ')'):
1770 compatibility(OTHER
);
1771 if (!cfg
.no_remote_charset
)
1772 term
->cset_attr
[1] = ATTR_SCOACS
;
1775 case ANSI('8', '%'): /* Old Linux code */
1776 case ANSI('G', '%'):
1777 compatibility(OTHER
);
1778 if (!cfg
.no_remote_charset
)
1781 case ANSI('@', '%'):
1782 compatibility(OTHER
);
1783 if (!cfg
.no_remote_charset
)
1789 term
->termstate
= TOPLEVEL
; /* default */
1791 if (term
->esc_nargs
<= ARGS_MAX
) {
1792 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1793 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1794 term
->esc_args
[term
->esc_nargs
- 1] =
1795 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1797 term
->termstate
= SEEN_CSI
;
1798 } else if (c
== ';') {
1799 if (++term
->esc_nargs
<= ARGS_MAX
)
1800 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1801 term
->termstate
= SEEN_CSI
;
1802 } else if (c
< '@') {
1803 if (term
->esc_query
)
1804 term
->esc_query
= -1;
1806 term
->esc_query
= TRUE
;
1808 term
->esc_query
= c
;
1809 term
->termstate
= SEEN_CSI
;
1811 switch (ANSI(c
, term
->esc_query
)) {
1812 case 'A': /* move up N lines */
1813 move(term
, term
->curs
.x
,
1814 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1815 term
->seen_disp_event
= TRUE
;
1817 case 'e': /* move down N lines */
1818 compatibility(ANSI
);
1821 move(term
, term
->curs
.x
,
1822 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1823 term
->seen_disp_event
= TRUE
;
1825 case ANSI('c', '>'): /* report xterm version */
1826 compatibility(OTHER
);
1827 /* this reports xterm version 136 so that VIM can
1828 use the drag messages from the mouse reporting */
1830 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1832 case 'a': /* move right N cols */
1833 compatibility(ANSI
);
1836 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1838 term
->seen_disp_event
= TRUE
;
1840 case 'D': /* move left N cols */
1841 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1843 term
->seen_disp_event
= TRUE
;
1845 case 'E': /* move down N lines and CR */
1846 compatibility(ANSI
);
1848 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1849 term
->seen_disp_event
= TRUE
;
1851 case 'F': /* move up N lines and CR */
1852 compatibility(ANSI
);
1854 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1855 term
->seen_disp_event
= TRUE
;
1858 case '`': /* set horizontal posn */
1859 compatibility(ANSI
);
1860 move(term
, def(term
->esc_args
[0], 1) - 1,
1862 term
->seen_disp_event
= TRUE
;
1864 case 'd': /* set vertical posn */
1865 compatibility(ANSI
);
1866 move(term
, term
->curs
.x
,
1867 ((term
->dec_om ? term
->marg_t
: 0) +
1868 def(term
->esc_args
[0], 1) - 1),
1869 (term
->dec_om ?
2 : 0));
1870 term
->seen_disp_event
= TRUE
;
1873 case 'f': /* set horz and vert posns at once */
1874 if (term
->esc_nargs
< 2)
1875 term
->esc_args
[1] = ARG_DEFAULT
;
1876 move(term
, def(term
->esc_args
[1], 1) - 1,
1877 ((term
->dec_om ? term
->marg_t
: 0) +
1878 def(term
->esc_args
[0], 1) - 1),
1879 (term
->dec_om ?
2 : 0));
1880 term
->seen_disp_event
= TRUE
;
1882 case 'J': /* erase screen or parts of it */
1884 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1887 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1890 term
->seen_disp_event
= TRUE
;
1892 case 'K': /* erase line or parts of it */
1894 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1897 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1899 term
->seen_disp_event
= TRUE
;
1901 case 'L': /* insert lines */
1902 compatibility(VT102
);
1903 if (term
->curs
.y
<= term
->marg_b
)
1904 scroll(term
, term
->curs
.y
, term
->marg_b
,
1905 -def(term
->esc_args
[0], 1), FALSE
);
1907 term
->seen_disp_event
= TRUE
;
1909 case 'M': /* delete lines */
1910 compatibility(VT102
);
1911 if (term
->curs
.y
<= term
->marg_b
)
1912 scroll(term
, term
->curs
.y
, term
->marg_b
,
1913 def(term
->esc_args
[0], 1),
1916 term
->seen_disp_event
= TRUE
;
1918 case '@': /* insert chars */
1919 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1920 compatibility(VT102
);
1921 insch(term
, def(term
->esc_args
[0], 1));
1922 term
->seen_disp_event
= TRUE
;
1924 case 'P': /* delete chars */
1925 compatibility(VT102
);
1926 insch(term
, -def(term
->esc_args
[0], 1));
1927 term
->seen_disp_event
= TRUE
;
1929 case 'c': /* terminal type query */
1930 compatibility(VT100
);
1931 /* This is the response for a VT102 */
1933 ldisc_send(term
->ldisc
, term
->id_string
,
1934 strlen(term
->id_string
), 0);
1936 case 'n': /* cursor position query */
1938 if (term
->esc_args
[0] == 6) {
1940 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1942 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1943 } else if (term
->esc_args
[0] == 5) {
1944 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1948 case 'h': /* toggle modes to high */
1950 compatibility(VT100
);
1953 for (i
= 0; i
< term
->esc_nargs
; i
++)
1954 toggle_mode(term
, term
->esc_args
[i
],
1955 term
->esc_query
, TRUE
);
1960 compatibility(VT100
);
1962 if (term
->esc_nargs
!= 1) break;
1963 if (term
->esc_args
[0] == 5 && *cfg
.printer
) {
1964 term
->printing
= TRUE
;
1965 term
->only_printing
= !term
->esc_query
;
1966 term
->print_state
= 0;
1967 term_print_setup(term
);
1968 } else if (term
->esc_args
[0] == 4 &&
1970 term_print_finish(term
);
1974 case 'l': /* toggle modes to low */
1976 compatibility(VT100
);
1979 for (i
= 0; i
< term
->esc_nargs
; i
++)
1980 toggle_mode(term
, term
->esc_args
[i
],
1981 term
->esc_query
, FALSE
);
1984 case 'g': /* clear tabs */
1985 compatibility(VT100
);
1986 if (term
->esc_nargs
== 1) {
1987 if (term
->esc_args
[0] == 0) {
1988 term
->tabs
[term
->curs
.x
] = FALSE
;
1989 } else if (term
->esc_args
[0] == 3) {
1991 for (i
= 0; i
< term
->cols
; i
++)
1992 term
->tabs
[i
] = FALSE
;
1996 case 'r': /* set scroll margins */
1997 compatibility(VT100
);
1998 if (term
->esc_nargs
<= 2) {
2000 top
= def(term
->esc_args
[0], 1) - 1;
2001 bot
= (term
->esc_nargs
<= 1
2002 || term
->esc_args
[1] == 0 ?
2004 def(term
->esc_args
[1], term
->rows
)) - 1;
2005 if (bot
>= term
->rows
)
2006 bot
= term
->rows
- 1;
2007 /* VTTEST Bug 9 - if region is less than 2 lines
2008 * don't change region.
2010 if (bot
- top
> 0) {
2015 * I used to think the cursor should be
2016 * placed at the top of the newly marginned
2017 * area. Apparently not: VMS TPU falls over
2020 * Well actually it should for
2023 term
->curs
.y
= (term
->dec_om ?
2026 term
->seen_disp_event
= TRUE
;
2030 case 'm': /* set graphics rendition */
2033 * A VT100 without the AVO only had one
2034 * attribute, either underline or
2035 * reverse video depending on the
2036 * cursor type, this was selected by
2040 * This is sometimes DIM, eg on the
2043 * This is sometimes INVIS various ANSI.
2045 * This like 22 disables BOLD, DIM and INVIS
2047 * The ANSI colours appear on any
2048 * terminal that has colour (obviously)
2049 * but the interaction between sgr0 and
2050 * the colours varies but is usually
2051 * related to the background colour
2052 * erase item. The interaction between
2053 * colour attributes and the mono ones
2054 * is also very implementation
2057 * The 39 and 49 attributes are likely
2058 * to be unimplemented.
2061 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2062 switch (def(term
->esc_args
[i
], 0)) {
2063 case 0: /* restore defaults */
2064 term
->curr_attr
= ATTR_DEFAULT
;
2066 case 1: /* enable bold */
2067 compatibility(VT100AVO
);
2068 term
->curr_attr
|= ATTR_BOLD
;
2070 case 21: /* (enable double underline) */
2071 compatibility(OTHER
);
2072 case 4: /* enable underline */
2073 compatibility(VT100AVO
);
2074 term
->curr_attr
|= ATTR_UNDER
;
2076 case 5: /* enable blink */
2077 compatibility(VT100AVO
);
2078 term
->curr_attr
|= ATTR_BLINK
;
2080 case 7: /* enable reverse video */
2081 term
->curr_attr
|= ATTR_REVERSE
;
2083 case 10: /* SCO acs off */
2084 compatibility(SCOANSI
);
2085 if (cfg
.no_remote_charset
) break;
2086 term
->sco_acs
= 0; break;
2087 case 11: /* SCO acs on */
2088 compatibility(SCOANSI
);
2089 if (cfg
.no_remote_charset
) break;
2090 term
->sco_acs
= 1; break;
2091 case 12: /* SCO acs on flipped */
2092 compatibility(SCOANSI
);
2093 if (cfg
.no_remote_charset
) break;
2094 term
->sco_acs
= 2; break;
2095 case 22: /* disable bold */
2096 compatibility2(OTHER
, VT220
);
2097 term
->curr_attr
&= ~ATTR_BOLD
;
2099 case 24: /* disable underline */
2100 compatibility2(OTHER
, VT220
);
2101 term
->curr_attr
&= ~ATTR_UNDER
;
2103 case 25: /* disable blink */
2104 compatibility2(OTHER
, VT220
);
2105 term
->curr_attr
&= ~ATTR_BLINK
;
2107 case 27: /* disable reverse video */
2108 compatibility2(OTHER
, VT220
);
2109 term
->curr_attr
&= ~ATTR_REVERSE
;
2120 term
->curr_attr
&= ~ATTR_FGMASK
;
2122 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2124 case 39: /* default-foreground */
2125 term
->curr_attr
&= ~ATTR_FGMASK
;
2126 term
->curr_attr
|= ATTR_DEFFG
;
2137 term
->curr_attr
&= ~ATTR_BGMASK
;
2139 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2141 case 49: /* default-background */
2142 term
->curr_attr
&= ~ATTR_BGMASK
;
2143 term
->curr_attr
|= ATTR_DEFBG
;
2148 term
->erase_char
= (' ' | ATTR_ASCII
|
2154 case 's': /* save cursor */
2155 save_cursor(term
, TRUE
);
2157 case 'u': /* restore cursor */
2158 save_cursor(term
, FALSE
);
2159 term
->seen_disp_event
= TRUE
;
2161 case 't': /* set page size - ie window height */
2163 * VT340/VT420 sequence DECSLPP, DEC only allows values
2164 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2165 * illegal values (eg first arg 1..9) for window changing
2168 if (term
->esc_nargs
<= 1
2169 && (term
->esc_args
[0] < 1 ||
2170 term
->esc_args
[0] >= 24)) {
2171 compatibility(VT340TEXT
);
2172 if (!cfg
.no_remote_resize
)
2173 request_resize(term
->frontend
, term
->cols
,
2174 def(term
->esc_args
[0], 24));
2176 } else if (term
->esc_nargs
>= 1 &&
2177 term
->esc_args
[0] >= 1 &&
2178 term
->esc_args
[0] < 24) {
2179 compatibility(OTHER
);
2181 switch (term
->esc_args
[0]) {
2185 set_iconic(term
->frontend
, FALSE
);
2188 set_iconic(term
->frontend
, TRUE
);
2191 if (term
->esc_nargs
>= 3) {
2192 if (!cfg
.no_remote_resize
)
2193 move_window(term
->frontend
,
2194 def(term
->esc_args
[1], 0),
2195 def(term
->esc_args
[2], 0));
2199 /* We should resize the window to a given
2200 * size in pixels here, but currently our
2201 * resizing code isn't healthy enough to
2206 set_zorder(term
->frontend
, TRUE
);
2209 /* move to bottom */
2210 set_zorder(term
->frontend
, FALSE
);
2213 refresh_window(term
->frontend
);
2216 if (term
->esc_nargs
>= 3) {
2217 if (!cfg
.no_remote_resize
)
2218 request_resize(term
->frontend
,
2219 def(term
->esc_args
[2], cfg
.width
),
2220 def(term
->esc_args
[1], cfg
.height
));
2224 if (term
->esc_nargs
>= 2)
2225 set_zoomed(term
->frontend
,
2231 ldisc_send(term
->ldisc
,
2232 is_iconic(term
->frontend
) ?
2233 "\033[1t" : "\033[2t", 4, 0);
2237 get_window_pos(term
->frontend
, &x
, &y
);
2238 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2239 ldisc_send(term
->ldisc
, buf
, len
, 0);
2244 get_window_pixels(term
->frontend
, &x
, &y
);
2245 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2246 ldisc_send(term
->ldisc
, buf
, len
, 0);
2251 len
= sprintf(buf
, "\033[8;%d;%dt",
2252 term
->rows
, term
->cols
);
2253 ldisc_send(term
->ldisc
, buf
, len
, 0);
2258 * Hmmm. Strictly speaking we
2259 * should return `the size of the
2260 * screen in characters', but
2261 * that's not easy: (a) window
2262 * furniture being what it is it's
2263 * hard to compute, and (b) in
2264 * resize-font mode maximising the
2265 * window wouldn't change the
2266 * number of characters. *shrug*. I
2267 * think we'll ignore it for the
2268 * moment and see if anyone
2269 * complains, and then ask them
2270 * what they would like it to do.
2275 p
= get_window_title(term
->frontend
, TRUE
);
2277 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2278 ldisc_send(term
->ldisc
, p
, len
, 0);
2279 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2284 p
= get_window_title(term
->frontend
,FALSE
);
2286 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2287 ldisc_send(term
->ldisc
, p
, len
, 0);
2288 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2295 compatibility(SCOANSI
);
2296 scroll(term
, term
->marg_t
, term
->marg_b
,
2297 def(term
->esc_args
[0], 1), TRUE
);
2299 term
->wrapnext
= FALSE
;
2300 term
->seen_disp_event
= TRUE
;
2303 compatibility(SCOANSI
);
2304 scroll(term
, term
->marg_t
, term
->marg_b
,
2305 -def(term
->esc_args
[0], 1), TRUE
);
2307 term
->wrapnext
= FALSE
;
2308 term
->seen_disp_event
= TRUE
;
2310 case ANSI('|', '*'):
2311 /* VT420 sequence DECSNLS
2312 * Set number of lines on screen
2313 * VT420 uses VGA like hardware and can support any size in
2314 * reasonable range (24..49 AIUI) with no default specified.
2316 compatibility(VT420
);
2317 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2318 if (!cfg
.no_remote_resize
)
2319 request_resize(term
->frontend
, term
->cols
,
2320 def(term
->esc_args
[0],
2325 case ANSI('|', '$'):
2326 /* VT340/VT420 sequence DECSCPP
2327 * Set number of columns per page
2328 * Docs imply range is only 80 or 132, but I'll allow any.
2330 compatibility(VT340TEXT
);
2331 if (term
->esc_nargs
<= 1) {
2332 if (!cfg
.no_remote_resize
)
2333 request_resize(term
->frontend
,
2334 def(term
->esc_args
[0],
2335 cfg
.width
), term
->rows
);
2339 case 'X': /* write N spaces w/o moving cursor */
2340 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2341 compatibility(ANSIMIN
);
2343 int n
= def(term
->esc_args
[0], 1);
2345 unsigned long *p
= term
->cpos
;
2346 if (n
> term
->cols
- term
->curs
.x
)
2347 n
= term
->cols
- term
->curs
.x
;
2348 cursplus
= term
->curs
;
2350 check_selection(term
, term
->curs
, cursplus
);
2352 *p
++ = term
->erase_char
;
2353 term
->seen_disp_event
= TRUE
;
2356 case 'x': /* report terminal characteristics */
2357 compatibility(VT100
);
2360 int i
= def(term
->esc_args
[0], 0);
2361 if (i
== 0 || i
== 1) {
2362 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2364 ldisc_send(term
->ldisc
, buf
, 20, 0);
2368 case 'Z': /* BackTab for xterm */
2369 compatibility(OTHER
);
2371 int i
= def(term
->esc_args
[0], 1);
2372 pos old_curs
= term
->curs
;
2374 for(;i
>0 && term
->curs
.x
>0; i
--) {
2377 } while (term
->curs
.x
>0 &&
2378 !term
->tabs
[term
->curs
.x
]);
2381 check_selection(term
, old_curs
, term
->curs
);
2384 case ANSI('L', '='):
2385 compatibility(OTHER
);
2386 term
->use_bce
= (term
->esc_args
[0] <= 0);
2387 term
->erase_char
= ERASE_CHAR
;
2389 term
->erase_char
= (' ' | ATTR_ASCII
|
2391 (ATTR_FGMASK
| ATTR_BGMASK
)));
2393 case ANSI('E', '='):
2394 compatibility(OTHER
);
2395 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2397 case ANSI('p', '"'):
2399 * Allow the host to make this emulator a
2400 * 'perfect' VT102. This first appeared in
2401 * the VT220, but we do need to get back to
2402 * PuTTY mode so I won't check it.
2404 * The arg in 40..42,50 are a PuTTY extension.
2405 * The 2nd arg, 8bit vs 7bit is not checked.
2407 * Setting VT102 mode should also change
2408 * the Fkeys to generate PF* codes as a
2409 * real VT102 has no Fkeys. The VT220 does
2410 * this, F11..F13 become ESC,BS,LF other
2411 * Fkeys send nothing.
2413 * Note ESC c will NOT change this!
2416 switch (term
->esc_args
[0]) {
2418 term
->compatibility_level
&= ~TM_VTXXX
;
2419 term
->compatibility_level
|= TM_VT102
;
2422 term
->compatibility_level
&= ~TM_VTXXX
;
2423 term
->compatibility_level
|= TM_VT220
;
2427 if (term
->esc_args
[0] > 60 &&
2428 term
->esc_args
[0] < 70)
2429 term
->compatibility_level
|= TM_VTXXX
;
2433 term
->compatibility_level
&= TM_VTXXX
;
2436 term
->compatibility_level
= TM_PUTTY
;
2439 term
->compatibility_level
= TM_SCOANSI
;
2443 term
->compatibility_level
= TM_PUTTY
;
2449 /* Change the response to CSI c */
2450 if (term
->esc_args
[0] == 50) {
2453 strcpy(term
->id_string
, "\033[?");
2454 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2456 strcat(term
->id_string
, ";");
2457 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2458 strcat(term
->id_string
, lbuf
);
2460 strcat(term
->id_string
, "c");
2463 /* Is this a good idea ?
2464 * Well we should do a soft reset at this point ...
2466 if (!has_compat(VT420
) && has_compat(VT100
)) {
2467 if (!cfg
.no_remote_resize
) {
2468 if (term
->reset_132
)
2469 request_resize(132, 24);
2471 request_resize(80, 24);
2479 term
->osc_w
= FALSE
;
2481 case 'P': /* Linux palette sequence */
2482 term
->termstate
= SEEN_OSC_P
;
2483 term
->osc_strlen
= 0;
2485 case 'R': /* Linux palette reset */
2486 palette_reset(term
->frontend
);
2487 term_invalidate(term
);
2488 term
->termstate
= TOPLEVEL
;
2490 case 'W': /* word-set */
2491 term
->termstate
= SEEN_OSC_W
;
2504 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2508 * Grotty hack to support xterm and DECterm title
2509 * sequences concurrently.
2511 if (term
->esc_args
[0] == 2) {
2512 term
->esc_args
[0] = 1;
2515 /* else fall through */
2517 term
->termstate
= OSC_STRING
;
2518 term
->osc_strlen
= 0;
2523 * This OSC stuff is EVIL. It takes just one character to get into
2524 * sysline mode and it's not initially obvious how to get out.
2525 * So I've added CR and LF as string aborts.
2526 * This shouldn't effect compatibility as I believe embedded
2527 * control characters are supposed to be interpreted (maybe?)
2528 * and they don't display anything useful anyway.
2532 if (c
== '\012' || c
== '\015') {
2533 term
->termstate
= TOPLEVEL
;
2534 } else if (c
== 0234 || c
== '\007') {
2536 * These characters terminate the string; ST and BEL
2537 * terminate the sequence and trigger instant
2538 * processing of it, whereas ESC goes back to SEEN_ESC
2539 * mode unless it is followed by \, in which case it is
2540 * synonymous with ST in the first place.
2543 term
->termstate
= TOPLEVEL
;
2544 } else if (c
== '\033')
2545 term
->termstate
= OSC_MAYBE_ST
;
2546 else if (term
->osc_strlen
< OSC_STR_MAX
)
2547 term
->osc_string
[term
->osc_strlen
++] = c
;
2551 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2553 if (c
>= '0' && c
<= '9')
2555 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2557 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2560 term
->termstate
= TOPLEVEL
;
2563 term
->osc_string
[term
->osc_strlen
++] = val
;
2564 if (term
->osc_strlen
>= 7) {
2565 palette_set(term
->frontend
, term
->osc_string
[0],
2566 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2567 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2568 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2569 term_invalidate(term
);
2570 term
->termstate
= TOPLEVEL
;
2586 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2589 term
->termstate
= OSC_STRING
;
2590 term
->osc_strlen
= 0;
2594 term
->termstate
= TOPLEVEL
;
2595 term
->seen_disp_event
= TRUE
;
2598 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2601 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2604 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2607 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2610 * From the VT100 Manual
2611 * NOTE: The special graphics characters in the VT100
2612 * are different from those in the VT52
2614 * From VT102 manual:
2615 * 137 _ Blank - Same
2616 * 140 ` Reserved - Humm.
2617 * 141 a Solid rectangle - Similar
2618 * 142 b 1/ - Top half of fraction for the
2619 * 143 c 3/ - subscript numbers below.
2622 * 146 f Degrees - Same
2623 * 147 g Plus or minus - Same
2625 * 151 i Ellipsis (dots)
2628 * 154 l Bar at scan 0
2629 * 155 m Bar at scan 1
2630 * 156 n Bar at scan 2
2631 * 157 o Bar at scan 3 - Similar
2632 * 160 p Bar at scan 4 - Similar
2633 * 161 q Bar at scan 5 - Similar
2634 * 162 r Bar at scan 6 - Same
2635 * 163 s Bar at scan 7 - Similar
2650 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2653 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2656 move(term
, 0, 0, 0);
2659 if (term
->curs
.y
== 0)
2660 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2661 else if (term
->curs
.y
> 0)
2664 term
->wrapnext
= FALSE
;
2667 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2671 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2675 /* XXX Print cursor line */
2678 /* XXX Start controller mode */
2681 /* XXX Stop controller mode */
2685 term
->termstate
= VT52_Y1
;
2689 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2692 term
->app_keypad_keys
= TRUE
;
2695 term
->app_keypad_keys
= FALSE
;
2698 /* XXX This should switch to VT100 mode not current or default
2699 * VT mode. But this will only have effect in a VT220+
2702 term
->vt52_mode
= FALSE
;
2703 term
->blink_is_real
= cfg
.blinktext
;
2707 /* XXX Enter auto print mode */
2710 /* XXX Exit auto print mode */
2713 /* XXX Print screen */
2719 /* compatibility(ATARI) */
2720 move(term
, 0, 0, 0);
2721 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2725 /* compatibility(ATARI) */
2726 if (term
->curs
.y
<= term
->marg_b
)
2727 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2730 /* compatibility(ATARI) */
2731 if (term
->curs
.y
<= term
->marg_b
)
2732 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2735 /* compatibility(ATARI) */
2736 term
->termstate
= VT52_FG
;
2739 /* compatibility(ATARI) */
2740 term
->termstate
= VT52_BG
;
2743 /* compatibility(ATARI) */
2744 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2748 /* compatibility(ATARI) */
2749 term
->cursor_on
= TRUE
;
2752 /* compatibility(ATARI) */
2753 term
->cursor_on
= FALSE
;
2755 /* case 'j': Save cursor position - broken on ST */
2756 /* case 'k': Restore cursor position */
2758 /* compatibility(ATARI) */
2759 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2761 term
->wrapnext
= FALSE
;
2765 /* compatibility(ATARI) */
2766 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2769 /* compatibility(ATARI) */
2770 term
->curr_attr
|= ATTR_REVERSE
;
2773 /* compatibility(ATARI) */
2774 term
->curr_attr
&= ~ATTR_REVERSE
;
2776 case 'v': /* wrap Autowrap on - Wyse style */
2777 /* compatibility(ATARI) */
2780 case 'w': /* Autowrap off */
2781 /* compatibility(ATARI) */
2786 /* compatibility(OTHER) */
2787 term
->vt52_bold
= FALSE
;
2788 term
->curr_attr
= ATTR_DEFAULT
;
2790 term
->erase_char
= (' ' | ATTR_ASCII
|
2792 (ATTR_FGMASK
| ATTR_BGMASK
)));
2795 /* compatibility(VI50) */
2796 term
->curr_attr
|= ATTR_UNDER
;
2799 /* compatibility(VI50) */
2800 term
->curr_attr
&= ~ATTR_UNDER
;
2803 /* compatibility(VI50) */
2804 term
->vt52_bold
= TRUE
;
2805 term
->curr_attr
|= ATTR_BOLD
;
2808 /* compatibility(VI50) */
2809 term
->vt52_bold
= FALSE
;
2810 term
->curr_attr
&= ~ATTR_BOLD
;
2816 term
->termstate
= VT52_Y2
;
2817 move(term
, term
->curs
.x
, c
- ' ', 0);
2820 term
->termstate
= TOPLEVEL
;
2821 move(term
, c
- ' ', term
->curs
.y
, 0);
2826 term
->termstate
= TOPLEVEL
;
2827 term
->curr_attr
&= ~ATTR_FGMASK
;
2828 term
->curr_attr
&= ~ATTR_BOLD
;
2829 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2830 if ((c
& 0x8) || term
->vt52_bold
)
2831 term
->curr_attr
|= ATTR_BOLD
;
2834 term
->erase_char
= (' ' | ATTR_ASCII
|
2836 (ATTR_FGMASK
| ATTR_BGMASK
)));
2839 term
->termstate
= TOPLEVEL
;
2840 term
->curr_attr
&= ~ATTR_BGMASK
;
2841 term
->curr_attr
&= ~ATTR_BLINK
;
2842 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2844 /* Note: bold background */
2846 term
->curr_attr
|= ATTR_BLINK
;
2849 term
->erase_char
= (' ' | ATTR_ASCII
|
2851 (ATTR_FGMASK
| ATTR_BGMASK
)));
2854 default: break; /* placate gcc warning about enum use */
2856 if (term
->selstate
!= NO_SELECTION
) {
2857 pos cursplus
= term
->curs
;
2859 check_selection(term
, term
->curs
, cursplus
);
2863 term_print_flush(term
);
2868 * Compare two lines to determine whether they are sufficiently
2869 * alike to scroll-optimise one to the other. Return the degree of
2872 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2876 for (i
= n
= 0; i
< term
->cols
; i
++)
2877 n
+= (*a
++ == *b
++);
2883 * Given a context, update the window. Out of paranoia, we don't
2884 * allow WM_PAINT responses to do scrolling optimisations.
2886 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2888 int i
, j
, our_curs_y
;
2889 unsigned long rv
, cursor
;
2892 long cursor_background
= ERASE_CHAR
;
2893 unsigned long ticks
;
2896 * Check the visual bell state.
2898 if (term
->in_vbell
) {
2899 ticks
= GETTICKCOUNT();
2900 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2901 term
->in_vbell
= FALSE
;
2904 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2907 * screen array, disptop, scrtop,
2909 * cfg.blinkpc, blink_is_real, tblinker,
2910 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2913 /* Has the cursor position or type changed ? */
2914 if (term
->cursor_on
) {
2915 if (term
->has_focus
) {
2916 if (term
->blinker
|| !cfg
.blink_cur
)
2917 cursor
= TATTR_ACTCURS
;
2921 cursor
= TATTR_PASCURS
;
2923 cursor
|= TATTR_RIGHTCURS
;
2926 our_curs_y
= term
->curs
.y
- term
->disptop
;
2928 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2930 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2932 if (term
->dispcurs
> term
->disptext
&&
2933 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2934 term
->dispcurs
[-1] |= ATTR_INVALID
;
2935 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2936 term
->dispcurs
[1] |= ATTR_INVALID
;
2937 *term
->dispcurs
|= ATTR_INVALID
;
2940 term
->dispcurs
= NULL
;
2942 /* The normal screen data */
2943 for (i
= 0; i
< term
->rows
; i
++) {
2944 unsigned long *ldata
;
2946 int idx
, dirty_line
, dirty_run
, selected
;
2947 unsigned long attr
= 0;
2948 int updated_line
= 0;
2951 int last_run_dirty
= 0;
2953 scrpos
.y
= i
+ term
->disptop
;
2954 ldata
= lineptr(scrpos
.y
);
2955 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2957 idx
= i
* (term
->cols
+ 1);
2958 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2959 term
->disptext
[idx
+ term
->cols
]);
2960 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2962 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2963 unsigned long tattr
, tchar
;
2964 unsigned long *d
= ldata
+ j
;
2968 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2969 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2970 switch (tchar
& CSET_MASK
) {
2972 tchar
= unitab_line
[tchar
& 0xFF];
2975 tchar
= unitab_xterm
[tchar
& 0xFF];
2978 tchar
= unitab_scoacs
[tchar
&0xFF];
2981 tattr
|= (tchar
& CSET_MASK
);
2983 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2986 /* Video reversing things */
2987 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
2988 if (term
->seltype
== LEXICOGRAPHIC
)
2989 selected
= (posle(term
->selstart
, scrpos
) &&
2990 poslt(scrpos
, term
->selend
));
2992 selected
= (posPle(term
->selstart
, scrpos
) &&
2993 posPlt(scrpos
, term
->selend
));
2997 ^ (selected ? ATTR_REVERSE
: 0));
2999 /* 'Real' blinking ? */
3000 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3001 if (term
->has_focus
&& term
->tblinker
) {
3003 tattr
&= ~CSET_MASK
;
3006 tattr
&= ~ATTR_BLINK
;
3010 * Check the font we'll _probably_ be using to see if
3011 * the character is wide when we don't want it to be.
3013 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3014 if ((tattr
& ATTR_WIDE
) == 0 &&
3015 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3016 tattr
|= ATTR_NARROW
;
3017 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3018 tattr
|= ATTR_NARROW
;
3020 /* Cursor here ? Save the 'background' */
3021 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3022 cursor_background
= tattr
| tchar
;
3023 term
->dispcurs
= term
->disptext
+ idx
;
3026 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3029 break_run
= (tattr
!= attr
|| j
- start
>= sizeof(ch
));
3031 /* Special hack for VT100 Linedraw glyphs */
3032 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3033 && tchar
<= 0xBD) break_run
= TRUE
;
3035 if (!dbcs_screenfont
&& !dirty_line
) {
3036 if ((tchar
| tattr
) == term
->disptext
[idx
])
3038 else if (!dirty_run
&& ccount
== 1)
3043 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3044 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3050 if (dbcs_screenfont
)
3051 last_run_dirty
= dirty_run
;
3052 dirty_run
= dirty_line
;
3055 if ((tchar
| tattr
) != term
->disptext
[idx
])
3057 ch
[ccount
++] = (char) tchar
;
3058 term
->disptext
[idx
] = tchar
| tattr
;
3060 /* If it's a wide char step along to the next one. */
3061 if (tattr
& ATTR_WIDE
) {
3062 if (++j
< term
->cols
) {
3065 /* Cursor is here ? Ouch! */
3066 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3067 cursor_background
= *d
;
3068 term
->dispcurs
= term
->disptext
+ idx
;
3070 if (term
->disptext
[idx
] != *d
)
3072 term
->disptext
[idx
] = *d
;
3076 if (dirty_run
&& ccount
> 0) {
3077 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3081 /* Cursor on this line ? (and changed) */
3082 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3083 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3084 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3085 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3086 term
->curstype
= cursor
;
3092 * Flick the switch that says if blinking things should be shown or hidden.
3095 void term_blink(Terminal
*term
, int flg
)
3097 long now
, blink_diff
;
3099 now
= GETTICKCOUNT();
3100 blink_diff
= now
- term
->last_tblink
;
3102 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3103 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3104 term
->last_tblink
= now
;
3105 term
->tblinker
= !term
->tblinker
;
3110 term
->last_blink
= now
;
3114 blink_diff
= now
- term
->last_blink
;
3116 /* Make sure the cursor blinks no faster than system blink rate */
3117 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3120 term
->last_blink
= now
;
3121 term
->blinker
= !term
->blinker
;
3125 * Invalidate the whole screen so it will be repainted in full.
3127 void term_invalidate(Terminal
*term
)
3131 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3132 term
->disptext
[i
] = ATTR_INVALID
;
3136 * Paint the window in response to a WM_PAINT message.
3138 void term_paint(Terminal
*term
, Context ctx
,
3139 int left
, int top
, int right
, int bottom
, int immediately
)
3142 if (left
< 0) left
= 0;
3143 if (top
< 0) top
= 0;
3144 if (right
>= term
->cols
) right
= term
->cols
-1;
3145 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3147 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3148 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3149 LATTR_MODE
) == LATTR_NORM
)
3150 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3151 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3153 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3154 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3157 /* This should happen soon enough, also for some reason it sometimes
3158 * fails to actually do anything when re-sizing ... painting the wrong
3162 do_paint (term
, ctx
, FALSE
);
3166 * Attempt to scroll the scrollback. The second parameter gives the
3167 * position we want to scroll to; the first is +1 to denote that
3168 * this position is relative to the beginning of the scrollback, -1
3169 * to denote it is relative to the end, and 0 to denote that it is
3170 * relative to the current position.
3172 void term_scroll(Terminal
*term
, int rel
, int where
)
3174 int sbtop
= -count234(term
->scrollback
);
3175 #ifdef OPTIMISE_SCROLL
3176 int olddisptop
= term
->disptop
;
3178 #endif /* OPTIMISE_SCROLL */
3180 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3181 if (term
->disptop
< sbtop
)
3182 term
->disptop
= sbtop
;
3183 if (term
->disptop
> 0)
3186 #ifdef OPTIMISE_SCROLL
3187 shift
= (term
->disptop
- olddisptop
);
3188 if (shift
< term
->rows
&& shift
> -term
->rows
)
3189 scroll_display(term
, 0, term
->rows
- 1, shift
);
3190 #endif /* OPTIMISE_SCROLL */
3194 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3197 wchar_t *wbptr
; /* where next char goes within workbuf */
3199 int wblen
= 0; /* workbuf len */
3200 int buflen
; /* amount of memory allocated to workbuf */
3202 buflen
= 5120; /* Default size */
3203 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3204 wbptr
= workbuf
; /* start filling here */
3205 old_top_x
= top
.x
; /* needed for rect==1 */
3207 while (poslt(top
, bottom
)) {
3209 unsigned long *ldata
= lineptr(top
.y
);
3213 * nlpos will point at the maximum position on this line we
3214 * should copy up to. So we start it at the end of the
3218 nlpos
.x
= term
->cols
;
3221 * ... move it backwards if there's unused space at the end
3222 * of the line (and also set `nl' if this is the case,
3223 * because in normal selection mode this means we need a
3224 * newline at the end)...
3226 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3227 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3228 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3229 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3230 && poslt(top
, nlpos
))
3232 if (poslt(nlpos
, bottom
))
3237 * ... and then clip it to the terminal x coordinate if
3238 * we're doing rectangular selection. (In this case we
3239 * still did the above, so that copying e.g. the right-hand
3240 * column from a table doesn't fill with spaces on the
3244 if (nlpos
.x
> bottom
.x
)
3246 nl
= (top
.y
< bottom
.y
);
3249 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3252 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3254 wchar_t cbuf
[16], *p
;
3255 int uc
= (ldata
[top
.x
] & 0xFFFF);
3258 if (uc
== UCSWIDE
) {
3263 switch (uc
& CSET_MASK
) {
3266 uc
= unitab_xterm
[uc
& 0xFF];
3270 uc
= unitab_line
[uc
& 0xFF];
3273 uc
= unitab_scoacs
[uc
&0xFF];
3276 switch (uc
& CSET_MASK
) {
3278 uc
= unitab_font
[uc
& 0xFF];
3281 uc
= unitab_oemcp
[uc
& 0xFF];
3285 set
= (uc
& CSET_MASK
);
3286 c
= (uc
& CHAR_MASK
);
3290 if (DIRECT_FONT(uc
)) {
3291 if (c
>= ' ' && c
!= 0x7F) {
3295 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3297 buf
[1] = ldata
[top
.x
+ 1];
3298 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3302 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3306 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3313 for (p
= cbuf
; *p
; p
++) {
3314 /* Enough overhead for trailing NL and nul */
3315 if (wblen
>= buflen
- 16) {
3318 sizeof(wchar_t) * (buflen
+= 100));
3319 wbptr
= workbuf
+ wblen
;
3328 for (i
= 0; i
< sel_nl_sz
; i
++) {
3330 *wbptr
++ = sel_nl
[i
];
3334 top
.x
= rect ? old_top_x
: 0;
3336 #if SELECTION_NUL_TERMINATED
3340 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3341 if (buflen
> 0) /* indicates we allocated this buffer */
3345 void term_copyall(Terminal
*term
)
3348 top
.y
= -count234(term
->scrollback
);
3350 clipme(term
, top
, term
->curs
, 0);
3354 * The wordness array is mainly for deciding the disposition of the
3355 * US-ASCII characters.
3357 static int wordtype(Terminal
*term
, int uc
)
3360 int start
, end
, ctype
;
3362 static const struct ucsword ucs_words
[] = {
3368 0x037e, 0x037e, 1}, /* Greek question mark */
3370 0x0387, 0x0387, 1}, /* Greek ano teleia */
3372 0x055a, 0x055f, 1}, /* Armenian punctuation */
3374 0x0589, 0x0589, 1}, /* Armenian full stop */
3376 0x0700, 0x070d, 1}, /* Syriac punctuation */
3378 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3380 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3382 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3384 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3386 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3388 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3390 0x2000, 0x200a, 0}, /* Various spaces */
3392 0x2070, 0x207f, 2}, /* superscript */
3394 0x2080, 0x208f, 2}, /* subscript */
3396 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3398 0x3000, 0x3000, 0}, /* ideographic space */
3400 0x3001, 0x3020, 1}, /* ideographic punctuation */
3402 0x303f, 0x309f, 3}, /* Hiragana */
3404 0x30a0, 0x30ff, 3}, /* Katakana */
3406 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3408 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3410 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3412 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3414 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3416 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3418 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3420 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3422 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3426 const struct ucsword
*wptr
;
3428 uc
&= (CSET_MASK
| CHAR_MASK
);
3430 switch (uc
& CSET_MASK
) {
3432 uc
= unitab_xterm
[uc
& 0xFF];
3435 uc
= unitab_line
[uc
& 0xFF];
3438 uc
= unitab_scoacs
[uc
&0xFF];
3441 switch (uc
& CSET_MASK
) {
3443 uc
= unitab_font
[uc
& 0xFF];
3446 uc
= unitab_oemcp
[uc
& 0xFF];
3450 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3451 * fail as there's such a thing as a double width space. :-(
3453 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3457 return term
->wordness
[uc
];
3459 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3460 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3468 * Spread the selection outwards according to the selection mode.
3470 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3472 unsigned long *ldata
;
3474 int topy
= -count234(term
->scrollback
);
3476 ldata
= lineptr(p
.y
);
3478 switch (term
->selmode
) {
3481 * In this mode, every character is a separate unit, except
3482 * for runs of spaces at the end of a non-wrapping line.
3484 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3485 unsigned long *q
= ldata
+ term
->cols
;
3486 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3488 if (q
== ldata
+ term
->cols
)
3490 if (p
.x
>= q
- ldata
)
3491 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3496 * In this mode, the units are maximal runs of characters
3497 * whose `wordness' has the same value.
3499 wvalue
= wordtype(term
, ldata
[p
.x
]);
3502 if (p
.x
< term
->cols
-1) {
3503 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3508 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3509 unsigned long *ldata2
;
3510 ldata2
= lineptr(p
.y
+1);
3511 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3524 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3529 unsigned long *ldata2
;
3532 ldata2
= lineptr(p
.y
-1);
3533 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3534 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3546 * In this mode, every line is a unit.
3548 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3554 static void sel_spread(Terminal
*term
)
3556 if (term
->seltype
== LEXICOGRAPHIC
) {
3557 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3558 decpos(term
->selend
);
3559 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3560 incpos(term
->selend
);
3564 void term_do_paste(Terminal
*term
)
3569 get_clip(term
->frontend
, &data
, &len
);
3570 if (data
&& len
> 0) {
3573 term_seen_key_event(term
); /* pasted data counts */
3575 if (term
->paste_buffer
)
3576 sfree(term
->paste_buffer
);
3577 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3578 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3581 while (p
< data
+ len
) {
3582 while (p
< data
+ len
&&
3583 !(p
<= data
+ len
- sel_nl_sz
&&
3584 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3589 for (i
= 0; i
< p
- q
; i
++) {
3590 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3594 if (p
<= data
+ len
- sel_nl_sz
&&
3595 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3596 term
->paste_buffer
[term
->paste_len
++] = '\015';
3602 /* Assume a small paste will be OK in one go. */
3603 if (term
->paste_len
< 256) {
3605 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3606 if (term
->paste_buffer
)
3607 sfree(term
->paste_buffer
);
3608 term
->paste_buffer
= 0;
3609 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3612 get_clip(term
->frontend
, NULL
, NULL
);
3615 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3616 int shift
, int ctrl
, int alt
)
3619 unsigned long *ldata
;
3620 int raw_mouse
= (term
->xterm_mouse
&&
3621 !cfg
.no_mouse_rep
&&
3622 !(cfg
.mouse_override
&& shift
));
3623 int default_seltype
;
3627 if (a
== MA_DRAG
&& !raw_mouse
)
3628 term_scroll(term
, 0, -1);
3630 if (y
>= term
->rows
) {
3632 if (a
== MA_DRAG
&& !raw_mouse
)
3633 term_scroll(term
, 0, +1);
3642 if (x
>= term
->cols
)
3645 selpoint
.y
= y
+ term
->disptop
;
3647 ldata
= lineptr(selpoint
.y
);
3648 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3652 int encstate
= 0, r
, c
;
3659 encstate
= 0x20; /* left button down */
3670 case MBT_WHEEL_DOWN
:
3673 default: break; /* placate gcc warning about enum use */
3677 if (term
->xterm_mouse
== 1)
3683 term
->mouse_is_down
= 0;
3686 if (term
->mouse_is_down
== b
)
3688 term
->mouse_is_down
= b
;
3690 default: break; /* placate gcc warning about enum use */
3699 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3700 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3705 b
= translate_button(term
->frontend
, b
);
3708 * Set the selection type (rectangular or normal) at the start
3709 * of a selection attempt, from the state of Alt.
3711 if (!alt
^ !cfg
.rect_select
)
3712 default_seltype
= RECTANGULAR
;
3714 default_seltype
= LEXICOGRAPHIC
;
3716 if (term
->selstate
== NO_SELECTION
) {
3717 term
->seltype
= default_seltype
;
3720 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3722 term
->selstate
= ABOUT_TO
;
3723 term
->seltype
= default_seltype
;
3724 term
->selanchor
= selpoint
;
3725 term
->selmode
= SM_CHAR
;
3726 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3728 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3729 term
->selstate
= DRAGGING
;
3730 term
->selstart
= term
->selanchor
= selpoint
;
3731 term
->selend
= term
->selstart
;
3732 incpos(term
->selend
);
3734 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3735 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3736 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3738 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3739 if (term
->seltype
== LEXICOGRAPHIC
) {
3741 * For normal selection, we extend by moving
3742 * whichever end of the current selection is closer
3745 if (posdiff(selpoint
, term
->selstart
) <
3746 posdiff(term
->selend
, term
->selstart
) / 2) {
3747 term
->selanchor
= term
->selend
;
3748 decpos(term
->selanchor
);
3750 term
->selanchor
= term
->selstart
;
3754 * For rectangular selection, we have a choice of
3755 * _four_ places to put selanchor and selpoint: the
3756 * four corners of the selection.
3758 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3759 term
->selanchor
.x
= term
->selend
.x
-1;
3761 term
->selanchor
.x
= term
->selstart
.x
;
3763 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3764 term
->selanchor
.y
= term
->selend
.y
;
3766 term
->selanchor
.y
= term
->selstart
.y
;
3768 term
->selstate
= DRAGGING
;
3770 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3771 term
->selanchor
= selpoint
;
3772 term
->selstate
= DRAGGING
;
3773 if (term
->seltype
== LEXICOGRAPHIC
) {
3775 * For normal selection, we set (selstart,selend) to
3776 * (selpoint,selanchor) in some order.
3778 if (poslt(selpoint
, term
->selanchor
)) {
3779 term
->selstart
= selpoint
;
3780 term
->selend
= term
->selanchor
;
3781 incpos(term
->selend
);
3783 term
->selstart
= term
->selanchor
;
3784 term
->selend
= selpoint
;
3785 incpos(term
->selend
);
3789 * For rectangular selection, we may need to
3790 * interchange x and y coordinates (if the user has
3791 * dragged in the -x and +y directions, or vice versa).
3793 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3794 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3795 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3796 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3799 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3800 if (term
->selstate
== DRAGGING
) {
3802 * We've completed a selection. We now transfer the
3803 * data to the clipboard.
3805 clipme(term
, term
->selstart
, term
->selend
,
3806 (term
->seltype
== RECTANGULAR
));
3807 term
->selstate
= SELECTED
;
3809 term
->selstate
= NO_SELECTION
;
3810 } else if (b
== MBT_PASTE
3812 #if MULTICLICK_ONLY_EVENT
3813 || a
== MA_2CLK
|| a
== MA_3CLK
3816 request_paste(term
->frontend
);
3822 void term_nopaste(Terminal
*term
)
3824 if (term
->paste_len
== 0)
3826 sfree(term
->paste_buffer
);
3827 term
->paste_buffer
= NULL
;
3828 term
->paste_len
= 0;
3831 int term_paste_pending(Terminal
*term
)
3833 return term
->paste_len
!= 0;
3836 void term_paste(Terminal
*term
)
3838 long now
, paste_diff
;
3840 if (term
->paste_len
== 0)
3843 /* Don't wait forever to paste */
3844 if (term
->paste_hold
) {
3845 now
= GETTICKCOUNT();
3846 paste_diff
= now
- term
->last_paste
;
3847 if (paste_diff
>= 0 && paste_diff
< 450)
3850 term
->paste_hold
= 0;
3852 while (term
->paste_pos
< term
->paste_len
) {
3854 while (n
+ term
->paste_pos
< term
->paste_len
) {
3855 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3859 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3860 term
->paste_pos
+= n
;
3862 if (term
->paste_pos
< term
->paste_len
) {
3863 term
->paste_hold
= 1;
3867 sfree(term
->paste_buffer
);
3868 term
->paste_buffer
= NULL
;
3869 term
->paste_len
= 0;
3872 static void deselect(Terminal
*term
)
3874 term
->selstate
= NO_SELECTION
;
3875 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3878 void term_deselect(Terminal
*term
)
3884 int term_ldisc(Terminal
*term
, int option
)
3886 if (option
== LD_ECHO
)
3887 return term
->term_echoing
;
3888 if (option
== LD_EDIT
)
3889 return term
->term_editing
;
3894 * from_backend(), to get data from the backend for the terminal.
3896 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3898 Terminal
*term
= (Terminal
*)vterm
;
3902 bufchain_add(&term
->inbuf
, data
, len
);
3905 * term_out() always completely empties inbuf. Therefore,
3906 * there's no reason at all to return anything other than zero
3907 * from this function, because there _can't_ be a question of
3908 * the remote side needing to wait until term_out() has cleared
3911 * This is a slightly suboptimal way to deal with SSH2 - in
3912 * principle, the window mechanism would allow us to continue
3913 * to accept data on forwarded ports and X connections even
3914 * while the terminal processing was going slowly - but we
3915 * can't do the 100% right thing without moving the terminal
3916 * processing into a separate thread, and that might hurt
3917 * portability. So we manage stdout buffering the old SSH1 way:
3918 * if the terminal processing goes slowly, the whole SSH
3919 * connection stops accepting data until it's ready.
3921 * In practice, I can't imagine this causing serious trouble.
3926 void term_provide_logctx(Terminal
*term
, void *logctx
)
3928 term
->logctx
= logctx
;