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
= term
->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
= term
->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
= term
->cfg
->app_cursor
;
169 term
->app_keypad_keys
= term
->cfg
->app_keypad
;
170 term
->use_bce
= term
->cfg
->bce
;
171 term
->blink_is_real
= term
->cfg
->blinktext
;
172 term
->erase_char
= ERASE_CHAR
;
174 term_print_finish(term
);
177 for (i
= 0; i
< 256; i
++)
178 term
->wordness
[i
] = term
->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
&& term
->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 (term
->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 (term
->cfg
->no_alt_screen
)
264 swap_screen(term
, 0, FALSE
, FALSE
);
265 if (term
->cfg
->no_mouse_rep
) {
266 term
->xterm_mouse
= 0;
267 set_raw_mouse_mode(term
->frontend
, 0);
269 if (term
->cfg
->no_remote_charset
) {
270 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
271 term
->sco_acs
= term
->alt_sco_acs
= 0;
274 if (!*term
->cfg
->printer
) {
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(Config
*mycfg
, void *frontend
)
300 * Allocate a new Terminal structure and initialise the fields
303 term
= smalloc(sizeof(Terminal
));
304 term
->frontend
= frontend
;
307 term
->compatibility_level
= TM_PUTTY
;
308 strcpy(term
->id_string
, "\033[?6c");
309 term
->last_blink
= term
->last_tblink
= 0;
310 term
->paste_buffer
= NULL
;
311 term
->last_paste
= 0;
312 bufchain_init(&term
->inbuf
);
313 bufchain_init(&term
->printer_buf
);
314 term
->printing
= term
->only_printing
= FALSE
;
315 term
->print_job
= NULL
;
316 term
->vt52_mode
= FALSE
;
317 term
->cr_lf_return
= FALSE
;
318 term
->seen_disp_event
= FALSE
;
319 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
320 term
->reset_132
= FALSE
;
321 term
->blinker
= term
->tblinker
= 0;
323 term
->repeat_off
= FALSE
;
324 term
->termstate
= TOPLEVEL
;
325 term
->selstate
= NO_SELECTION
;
328 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
330 term
->disptext
= term
->dispcurs
= NULL
;
333 term
->rows
= term
->cols
= -1;
335 term
->beephead
= term
->beeptail
= NULL
;
337 term
->lastbeep
= FALSE
;
338 term
->beep_overloaded
= FALSE
;
339 term
->resize_fn
= NULL
;
340 term
->resize_ctx
= NULL
;
346 * Set up the terminal for a given size.
348 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
351 unsigned long *newdisp
, *line
;
354 int save_alt_which
= term
->alt_which
;
356 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
357 newsavelines
== term
->savelines
)
358 return; /* nothing to do */
361 swap_screen(term
, 0, FALSE
, FALSE
);
363 term
->alt_t
= term
->marg_t
= 0;
364 term
->alt_b
= term
->marg_b
= newrows
- 1;
366 if (term
->rows
== -1) {
367 term
->scrollback
= newtree234(NULL
);
368 term
->screen
= newtree234(NULL
);
373 * Resize the screen and scrollback. We only need to shift
374 * lines around within our data structures, because lineptr()
375 * will take care of resizing each individual line if
378 * - If the new screen and the old screen differ in length, we
379 * must shunt some lines in from the scrollback or out to
382 * - If doing that fails to provide us with enough material to
383 * fill the new screen (i.e. the number of rows needed in
384 * the new screen exceeds the total number in the previous
385 * screen+scrollback), we must invent some blank lines to
388 * - Then, if the new scrollback length is less than the
389 * amount of scrollback we actually have, we must throw some
392 sblen
= count234(term
->scrollback
);
393 /* Do this loop to expand the screen if newrows > rows */
394 for (i
= term
->rows
; i
< newrows
; i
++) {
396 line
= delpos234(term
->scrollback
, --sblen
);
398 line
= smalloc(TSIZE
* (newcols
+ 2));
400 for (j
= 0; j
<= newcols
; j
++)
401 line
[j
+ 1] = ERASE_CHAR
;
403 addpos234(term
->screen
, line
, 0);
405 /* Do this loop to shrink the screen if newrows < rows */
406 for (i
= newrows
; i
< term
->rows
; i
++) {
407 line
= delpos234(term
->screen
, 0);
408 addpos234(term
->scrollback
, line
, sblen
++);
410 assert(count234(term
->screen
) == newrows
);
411 while (sblen
> newsavelines
) {
412 line
= delpos234(term
->scrollback
, 0);
416 assert(count234(term
->scrollback
) <= newsavelines
);
419 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
420 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
421 newdisp
[i
] = ATTR_INVALID
;
422 sfree(term
->disptext
);
423 term
->disptext
= newdisp
;
424 term
->dispcurs
= NULL
;
426 newalt
= newtree234(NULL
);
427 for (i
= 0; i
< newrows
; i
++) {
428 line
= smalloc(TSIZE
* (newcols
+ 2));
430 for (j
= 0; j
<= newcols
; j
++)
431 line
[j
+ 1] = term
->erase_char
;
432 addpos234(newalt
, line
, i
);
434 if (term
->alt_screen
) {
435 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
437 freetree234(term
->alt_screen
);
439 term
->alt_screen
= newalt
;
441 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
444 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
445 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
449 term
->curs
.y
+= newrows
- term
->rows
;
450 if (term
->curs
.y
< 0)
452 if (term
->curs
.y
>= newrows
)
453 term
->curs
.y
= newrows
- 1;
454 if (term
->curs
.x
>= newcols
)
455 term
->curs
.x
= newcols
- 1;
456 term
->alt_x
= term
->alt_y
= 0;
457 term
->wrapnext
= term
->alt_wnext
= FALSE
;
459 term
->rows
= newrows
;
460 term
->cols
= newcols
;
461 term
->savelines
= newsavelines
;
464 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
469 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
473 * Hand a function and context pointer to the terminal which it can
474 * use to notify a back end of resizes.
476 void term_provide_resize_fn(Terminal
*term
,
477 void (*resize_fn
)(void *, int, int),
480 term
->resize_fn
= resize_fn
;
481 term
->resize_ctx
= resize_ctx
;
482 if (term
->cols
> 0 && term
->rows
> 0)
483 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
487 * Swap screens. If `reset' is TRUE and we have been asked to
488 * switch to the alternate screen, we must bring most of its
489 * configuration from the main screen and erase the contents of the
490 * alternate screen completely. (This is even true if we're already
491 * on it! Blame xterm.)
493 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
499 reset
= FALSE
; /* do no weird resetting if which==0 */
501 if (which
!= term
->alt_which
) {
502 term
->alt_which
= which
;
504 ttr
= term
->alt_screen
;
505 term
->alt_screen
= term
->screen
;
508 if (!reset
&& !keep_cur_pos
)
509 term
->curs
.x
= term
->alt_x
;
512 if (!reset
&& !keep_cur_pos
)
513 term
->curs
.y
= term
->alt_y
;
516 if (!reset
) term
->marg_t
= term
->alt_t
;
519 if (!reset
) term
->marg_b
= term
->alt_b
;
522 if (!reset
) term
->dec_om
= term
->alt_om
;
525 if (!reset
) term
->wrap
= term
->alt_wrap
;
528 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
531 if (!reset
) term
->insert
= term
->alt_ins
;
534 if (!reset
) term
->cset
= term
->alt_cset
;
537 if (!reset
) term
->utf
= term
->alt_utf
;
540 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
541 term
->alt_sco_acs
= t
;
544 if (reset
&& term
->screen
) {
546 * Yes, this _is_ supposed to honour background-colour-erase.
548 erase_lots(term
, FALSE
, TRUE
, TRUE
);
552 * This might not be possible if we're called during
560 * Update the scroll bar.
562 static void update_sbar(Terminal
*term
)
566 nscroll
= count234(term
->scrollback
);
568 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
569 nscroll
+ term
->disptop
, term
->rows
);
573 * Check whether the region bounded by the two pointers intersects
574 * the scroll region, and de-select the on-screen selection if so.
576 static void check_selection(Terminal
*term
, pos from
, pos to
)
578 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
583 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
584 * for backward.) `sb' is TRUE if the scrolling is permitted to
585 * affect the scrollback buffer.
587 * NB this function invalidates all pointers into lines of the
588 * screen data structures. In particular, you MUST call fix_cpos
589 * after calling scroll() and before doing anything else that
590 * uses the cpos shortcut pointer.
592 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
594 unsigned long *line
, *line2
;
597 if (topline
!= 0 || term
->alt_which
!= 0)
602 line
= delpos234(term
->screen
, botline
);
603 line
= resizeline(line
, term
->cols
);
604 for (i
= 0; i
< term
->cols
; i
++)
605 line
[i
+ 1] = term
->erase_char
;
606 line
[term
->cols
+ 1] = 0;
607 addpos234(term
->screen
, line
, topline
);
609 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
611 if (term
->selstart
.y
> botline
) {
612 term
->selstart
.y
= botline
;
613 term
->selstart
.x
= 0;
616 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
618 if (term
->selend
.y
> botline
) {
619 term
->selend
.y
= botline
;
628 line
= delpos234(term
->screen
, topline
);
629 if (sb
&& term
->savelines
> 0) {
630 int sblen
= count234(term
->scrollback
);
632 * We must add this line to the scrollback. We'll
633 * remove a line from the top of the scrollback to
634 * replace it, or allocate a new one if the
635 * scrollback isn't full.
637 if (sblen
== term
->savelines
) {
638 sblen
--, line2
= delpos234(term
->scrollback
, 0);
640 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
641 line2
[0] = term
->cols
;
643 addpos234(term
->scrollback
, line
, sblen
);
647 * If the user is currently looking at part of the
648 * scrollback, and they haven't enabled any options
649 * that are going to reset the scrollback as a
650 * result of this movement, then the chances are
651 * they'd like to keep looking at the same line. So
652 * we move their viewpoint at the same rate as the
653 * scroll, at least until their viewpoint hits the
654 * top end of the scrollback buffer, at which point
655 * we don't have the choice any more.
657 * Thanks to Jan Holmen Holsten for the idea and
658 * initial implementation.
660 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
663 line
= resizeline(line
, term
->cols
);
664 for (i
= 0; i
< term
->cols
; i
++)
665 line
[i
+ 1] = term
->erase_char
;
666 line
[term
->cols
+ 1] = 0;
667 addpos234(term
->screen
, line
, botline
);
670 * If the selection endpoints move into the scrollback,
671 * we keep them moving until they hit the top. However,
672 * of course, if the line _hasn't_ moved into the
673 * scrollback then we don't do this, and cut them off
674 * at the top of the scroll region.
676 * This applies to selstart and selend (for an existing
677 * selection), and also selanchor (for one being
678 * selected as we speak).
680 seltop
= sb ?
-term
->savelines
: topline
;
682 if (term
->selstart
.y
>= seltop
&&
683 term
->selstart
.y
<= botline
) {
685 if (term
->selstart
.y
< seltop
) {
686 term
->selstart
.y
= seltop
;
687 term
->selstart
.x
= 0;
690 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
692 if (term
->selend
.y
< seltop
) {
693 term
->selend
.y
= seltop
;
697 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
699 if (term
->selanchor
.y
< seltop
) {
700 term
->selanchor
.y
= seltop
;
701 term
->selanchor
.x
= 0;
710 #ifdef OPTIMISE_SCROLL
712 * Scroll the physical display, and our conception of it in disptext.
714 static void scroll_display(Terminal
*term
, int topline
, int botline
, int lines
)
716 unsigned long *start
, *end
;
717 int distance
, size
, i
;
719 start
= term
->disptext
+ topline
* (term
->cols
+ 1);
720 end
= term
->disptext
+ (botline
+ 1) * (term
->cols
+ 1);
721 distance
= (lines
> 0 ? lines
: -lines
) * (term
->cols
+ 1);
722 size
= end
- start
- distance
;
724 memmove(start
, start
+ distance
, size
* TSIZE
);
725 for (i
= 0; i
< distance
; i
++)
726 (start
+ size
)[i
] |= ATTR_INVALID
;
728 memmove(start
+ distance
, start
, size
* TSIZE
);
729 for (i
= 0; i
< distance
; i
++)
730 start
[i
] |= ATTR_INVALID
;
732 do_scroll(term
->frontend
, topline
, botline
, lines
);
734 #endif /* OPTIMISE_SCROLL */
737 * Move the cursor to a given position, clipping at boundaries. We
738 * may or may not want to clip at the scroll margin: marg_clip is 0
739 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
740 * even _being_ outside the margins.
742 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
749 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
752 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
763 term
->wrapnext
= FALSE
;
767 * Save or restore the cursor and SGR mode.
769 static void save_cursor(Terminal
*term
, int save
)
772 term
->savecurs
= term
->curs
;
773 term
->save_attr
= term
->curr_attr
;
774 term
->save_cset
= term
->cset
;
775 term
->save_utf
= term
->utf
;
776 term
->save_wnext
= term
->wrapnext
;
777 term
->save_csattr
= term
->cset_attr
[term
->cset
];
778 term
->save_sco_acs
= term
->sco_acs
;
780 term
->curs
= term
->savecurs
;
781 /* Make sure the window hasn't shrunk since the save */
782 if (term
->curs
.x
>= term
->cols
)
783 term
->curs
.x
= term
->cols
- 1;
784 if (term
->curs
.y
>= term
->rows
)
785 term
->curs
.y
= term
->rows
- 1;
787 term
->curr_attr
= term
->save_attr
;
788 term
->cset
= term
->save_cset
;
789 term
->utf
= term
->save_utf
;
790 term
->wrapnext
= term
->save_wnext
;
792 * wrapnext might reset to False if the x position is no
793 * longer at the rightmost edge.
795 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
796 term
->wrapnext
= FALSE
;
797 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
798 term
->sco_acs
= term
->save_sco_acs
;
801 term
->erase_char
= (' ' | ATTR_ASCII
|
803 (ATTR_FGMASK
| ATTR_BGMASK
)));
808 * Erase a large portion of the screen: the whole screen, or the
809 * whole line, or parts thereof.
811 static void erase_lots(Terminal
*term
,
812 int line_only
, int from_begin
, int to_end
)
816 unsigned long *ldata
;
819 start
.y
= term
->curs
.y
;
821 end
.y
= term
->curs
.y
+ 1;
838 check_selection(term
, start
, end
);
840 /* Clear screen also forces a full window redraw, just in case. */
841 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
842 term_invalidate(term
);
844 ldata
= lineptr(start
.y
);
845 while (poslt(start
, end
)) {
846 if (start
.x
== term
->cols
&& !erase_lattr
)
847 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
849 ldata
[start
.x
] = term
->erase_char
;
850 if (incpos(start
) && start
.y
< term
->rows
)
851 ldata
= lineptr(start
.y
);
856 * Insert or delete characters within the current line. n is +ve if
857 * insertion is desired, and -ve for deletion.
859 static void insch(Terminal
*term
, int n
)
861 int dir
= (n
< 0 ?
-1 : +1);
864 unsigned long *ldata
;
866 n
= (n
< 0 ?
-n
: n
);
867 if (n
> term
->cols
- term
->curs
.x
)
868 n
= term
->cols
- term
->curs
.x
;
869 m
= term
->cols
- term
->curs
.x
- n
;
870 cursplus
.y
= term
->curs
.y
;
871 cursplus
.x
= term
->curs
.x
+ n
;
872 check_selection(term
, term
->curs
, cursplus
);
873 ldata
= lineptr(term
->curs
.y
);
875 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
877 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
879 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
881 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
886 * Toggle terminal mode `mode' to state `state'. (`query' indicates
887 * whether the mode is a DEC private one or a normal one.)
889 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
895 case 1: /* application cursor keys */
896 term
->app_cursor_keys
= state
;
898 case 2: /* VT52 mode */
899 term
->vt52_mode
= !state
;
900 if (term
->vt52_mode
) {
901 term
->blink_is_real
= FALSE
;
902 term
->vt52_bold
= FALSE
;
904 term
->blink_is_real
= term
->cfg
->blinktext
;
907 case 3: /* 80/132 columns */
909 if (!term
->cfg
->no_remote_resize
)
910 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
911 term
->reset_132
= state
;
913 case 5: /* reverse video */
915 * Toggle reverse video. If we receive an OFF within the
916 * visual bell timeout period after an ON, we trigger an
917 * effective visual bell, so that ESC[?5hESC[?5l will
918 * always be an actually _visible_ visual bell.
920 ticks
= GETTICKCOUNT();
921 /* turn off a previous vbell to avoid inconsistencies */
922 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
923 term
->in_vbell
= FALSE
;
924 if (term
->rvideo
&& !state
&& /* we're turning it off... */
925 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
926 /* If there's no vbell timeout already, or this one lasts
927 * longer, replace vbell_timeout with ours. */
928 if (!term
->in_vbell
||
929 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
931 term
->vbell_startpoint
= term
->rvbell_startpoint
;
932 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
933 } else if (!term
->rvideo
&& state
) {
934 /* This is an ON, so we notice the time and save it. */
935 term
->rvbell_startpoint
= ticks
;
937 term
->rvideo
= state
;
938 term
->seen_disp_event
= TRUE
;
942 case 6: /* DEC origin mode */
943 term
->dec_om
= state
;
945 case 7: /* auto wrap */
948 case 8: /* auto key repeat */
949 term
->repeat_off
= !state
;
951 case 10: /* set local edit mode */
952 term
->term_editing
= state
;
953 if (term
->ldisc
) /* cause ldisc to notice changes */
954 ldisc_send(term
->ldisc
, NULL
, 0, 0);
956 case 25: /* enable/disable cursor */
957 compatibility2(OTHER
, VT220
);
958 term
->cursor_on
= state
;
959 term
->seen_disp_event
= TRUE
;
961 case 47: /* alternate screen */
962 compatibility(OTHER
);
964 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, FALSE
, FALSE
);
967 case 1000: /* xterm mouse 1 */
968 term
->xterm_mouse
= state ?
1 : 0;
969 set_raw_mouse_mode(term
->frontend
, state
);
971 case 1002: /* xterm mouse 2 */
972 term
->xterm_mouse
= state ?
2 : 0;
973 set_raw_mouse_mode(term
->frontend
, state
);
975 case 1047: /* alternate screen */
976 compatibility(OTHER
);
978 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, TRUE
);
981 case 1048: /* save/restore cursor */
982 save_cursor(term
, state
);
983 if (!state
) term
->seen_disp_event
= TRUE
;
985 case 1049: /* cursor & alternate screen */
987 save_cursor(term
, state
);
988 if (!state
) term
->seen_disp_event
= TRUE
;
989 compatibility(OTHER
);
991 swap_screen(term
, term
->cfg
->no_alt_screen ?
0 : state
, TRUE
, FALSE
);
993 save_cursor(term
, state
);
998 case 4: /* set insert mode */
999 compatibility(VT102
);
1000 term
->insert
= state
;
1002 case 12: /* set echo mode */
1003 term
->term_echoing
= !state
;
1004 if (term
->ldisc
) /* cause ldisc to notice changes */
1005 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1007 case 20: /* Return sends ... */
1008 term
->cr_lf_return
= state
;
1010 case 34: /* Make cursor BIG */
1011 compatibility2(OTHER
, VT220
);
1012 term
->big_cursor
= !state
;
1017 * Process an OSC sequence: set window title or icon name.
1019 static void do_osc(Terminal
*term
)
1022 while (term
->osc_strlen
--)
1023 term
->wordness
[(unsigned char)
1024 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
1026 term
->osc_string
[term
->osc_strlen
] = '\0';
1027 switch (term
->esc_args
[0]) {
1030 if (!term
->cfg
->no_remote_wintitle
)
1031 set_icon(term
->frontend
, term
->osc_string
);
1032 if (term
->esc_args
[0] == 1)
1034 /* fall through: parameter 0 means set both */
1037 if (!term
->cfg
->no_remote_wintitle
)
1038 set_title(term
->frontend
, term
->osc_string
);
1045 * ANSI printing routines.
1047 static void term_print_setup(Terminal
*term
)
1049 bufchain_clear(&term
->printer_buf
);
1050 term
->print_job
= printer_start_job(term
->cfg
->printer
);
1052 static void term_print_flush(Terminal
*term
)
1057 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1058 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1061 printer_job_data(term
->print_job
, data
, len
);
1062 bufchain_consume(&term
->printer_buf
, len
);
1065 static void term_print_finish(Terminal
*term
)
1071 if (!term
->printing
&& !term
->only_printing
)
1072 return; /* we need do nothing */
1074 term_print_flush(term
);
1075 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1076 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1078 if (c
== '\033' || c
== '\233') {
1079 bufchain_consume(&term
->printer_buf
, size
);
1082 printer_job_data(term
->print_job
, &c
, 1);
1083 bufchain_consume(&term
->printer_buf
, 1);
1086 printer_finish_job(term
->print_job
);
1087 term
->print_job
= NULL
;
1088 term
->printing
= term
->only_printing
= FALSE
;
1092 * Remove everything currently in `inbuf' and stick it up on the
1093 * in-memory display. There's a big state machine in here to
1094 * process escape sequences...
1096 void term_out(Terminal
*term
)
1099 unsigned char localbuf
[256], *chars
;
1104 chars
= NULL
; /* placate compiler warnings */
1105 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1109 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1110 if (nchars
> sizeof(localbuf
))
1111 nchars
= sizeof(localbuf
);
1112 memcpy(localbuf
, ret
, nchars
);
1113 bufchain_consume(&term
->inbuf
, nchars
);
1115 assert(chars
!= NULL
);
1121 * Optionally log the session traffic to a file. Useful for
1122 * debugging and possibly also useful for actual logging.
1124 if (term
->cfg
->logtype
== LGTYP_DEBUG
&& term
->logctx
)
1125 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1131 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1132 * be able to display 8-bit characters, but I'll let that go 'cause
1137 * If we're printing, add the character to the printer
1140 if (term
->printing
) {
1141 bufchain_add(&term
->printer_buf
, &c
, 1);
1144 * If we're in print-only mode, we use a much simpler
1145 * state machine designed only to recognise the ESC[4i
1146 * termination sequence.
1148 if (term
->only_printing
) {
1150 term
->print_state
= 1;
1151 else if (c
== (unsigned char)'\233')
1152 term
->print_state
= 2;
1153 else if (c
== '[' && term
->print_state
== 1)
1154 term
->print_state
= 2;
1155 else if (c
== '4' && term
->print_state
== 2)
1156 term
->print_state
= 3;
1157 else if (c
== 'i' && term
->print_state
== 3)
1158 term
->print_state
= 4;
1160 term
->print_state
= 0;
1161 if (term
->print_state
== 4) {
1162 term_print_finish(term
);
1168 /* First see about all those translations. */
1169 if (term
->termstate
== TOPLEVEL
) {
1171 switch (term
->utf_state
) {
1174 /* UTF-8 must be stateless so we ignore iso2022. */
1175 if (unitab_ctrl
[c
] != 0xFF)
1177 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1179 } else if ((c
& 0xe0) == 0xc0) {
1180 term
->utf_size
= term
->utf_state
= 1;
1181 term
->utf_char
= (c
& 0x1f);
1182 } else if ((c
& 0xf0) == 0xe0) {
1183 term
->utf_size
= term
->utf_state
= 2;
1184 term
->utf_char
= (c
& 0x0f);
1185 } else if ((c
& 0xf8) == 0xf0) {
1186 term
->utf_size
= term
->utf_state
= 3;
1187 term
->utf_char
= (c
& 0x07);
1188 } else if ((c
& 0xfc) == 0xf8) {
1189 term
->utf_size
= term
->utf_state
= 4;
1190 term
->utf_char
= (c
& 0x03);
1191 } else if ((c
& 0xfe) == 0xfc) {
1192 term
->utf_size
= term
->utf_state
= 5;
1193 term
->utf_char
= (c
& 0x01);
1204 if ((c
& 0xC0) != 0x80) {
1207 term
->utf_state
= 0;
1210 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1211 if (--term
->utf_state
)
1216 /* Is somebody trying to be evil! */
1218 (c
< 0x800 && term
->utf_size
>= 2) ||
1219 (c
< 0x10000 && term
->utf_size
>= 3) ||
1220 (c
< 0x200000 && term
->utf_size
>= 4) ||
1221 (c
< 0x4000000 && term
->utf_size
>= 5))
1224 /* Unicode line separator and paragraph separator are CR-LF */
1225 if (c
== 0x2028 || c
== 0x2029)
1228 /* High controls are probably a Baaad idea too. */
1232 /* The UTF-16 surrogates are not nice either. */
1233 /* The standard give the option of decoding these:
1234 * I don't want to! */
1235 if (c
>= 0xD800 && c
< 0xE000)
1238 /* ISO 10646 characters now limited to UTF-16 range. */
1242 /* This is currently a TagPhobic application.. */
1243 if (c
>= 0xE0000 && c
<= 0xE007F)
1246 /* U+FEFF is best seen as a null. */
1249 /* But U+FFFE is an error. */
1250 if (c
== 0xFFFE || c
== 0xFFFF)
1253 /* Oops this is a 16bit implementation */
1258 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1259 else if(term
->sco_acs
&&
1260 (c
!='\033' && c
!='\012' && c
!='\015' && c
!='\b'))
1262 if (term
->sco_acs
== 2) c
^= 0x80;
1265 switch (term
->cset_attr
[term
->cset
]) {
1267 * Linedraw characters are different from 'ESC ( B'
1268 * only for a small range. For ones outside that
1269 * range, make sure we use the same font as well as
1270 * the same encoding.
1273 if (unitab_ctrl
[c
] != 0xFF)
1276 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1280 /* If UK-ASCII, make the '#' a LineDraw Pound */
1282 c
= '}' | ATTR_LINEDRW
;
1285 /*FALLTHROUGH*/ case ATTR_ASCII
:
1286 if (unitab_ctrl
[c
] != 0xFF)
1289 c
= ((unsigned char) c
) | ATTR_ASCII
;
1292 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1298 /* How about C1 controls ? */
1299 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1300 !term
->vt52_mode
&& has_compat(VT220
)) {
1301 term
->termstate
= SEEN_ESC
;
1302 term
->esc_query
= FALSE
;
1303 c
= '@' + (c
& 0x1F);
1306 /* Or the GL control. */
1307 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1308 if (term
->curs
.x
&& !term
->wrapnext
)
1310 term
->wrapnext
= FALSE
;
1312 if (!term
->cfg
->no_dbackspace
) /* destructive bksp might be disabled */
1313 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1315 /* Or normal C0 controls. */
1316 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1318 case '\005': /* terminal type query */
1319 /* Strictly speaking this is VT100 but a VT100 defaults to
1320 * no response. Other terminals respond at their option.
1322 * Don't put a CR in the default string as this tends to
1323 * upset some weird software.
1325 * An xterm returns "xterm" (5 characters)
1327 compatibility(ANSIMIN
);
1329 char abuf
[256], *s
, *d
;
1331 for (s
= term
->cfg
->answerback
, d
= abuf
; *s
; s
++) {
1333 if (*s
>= 'a' && *s
<= 'z')
1334 *d
++ = (*s
- ('a' - 1));
1335 else if ((*s
>= '@' && *s
<= '_') ||
1336 *s
== '?' || (*s
& 0x80))
1341 } else if (*s
== '^') {
1346 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1352 struct beeptime
*newbeep
;
1353 unsigned long ticks
;
1355 ticks
= GETTICKCOUNT();
1357 if (!term
->beep_overloaded
) {
1358 newbeep
= smalloc(sizeof(struct beeptime
));
1359 newbeep
->ticks
= ticks
;
1360 newbeep
->next
= NULL
;
1361 if (!term
->beephead
)
1362 term
->beephead
= newbeep
;
1364 term
->beeptail
->next
= newbeep
;
1365 term
->beeptail
= newbeep
;
1370 * Throw out any beeps that happened more than
1373 while (term
->beephead
&&
1374 term
->beephead
->ticks
< ticks
- term
->cfg
->bellovl_t
) {
1375 struct beeptime
*tmp
= term
->beephead
;
1376 term
->beephead
= tmp
->next
;
1378 if (!term
->beephead
)
1379 term
->beeptail
= NULL
;
1383 if (term
->cfg
->bellovl
&& term
->beep_overloaded
&&
1384 ticks
- term
->lastbeep
>= (unsigned)term
->cfg
->bellovl_s
) {
1386 * If we're currently overloaded and the
1387 * last beep was more than s seconds ago,
1388 * leave overload mode.
1390 term
->beep_overloaded
= FALSE
;
1391 } else if (term
->cfg
->bellovl
&& !term
->beep_overloaded
&&
1392 term
->nbeeps
>= term
->cfg
->bellovl_n
) {
1394 * Now, if we have n or more beeps
1395 * remaining in the queue, go into overload
1398 term
->beep_overloaded
= TRUE
;
1400 term
->lastbeep
= ticks
;
1403 * Perform an actual beep if we're not overloaded.
1405 if (!term
->cfg
->bellovl
|| !term
->beep_overloaded
) {
1406 beep(term
->frontend
, term
->cfg
->beep
);
1407 if (term
->cfg
->beep
== BELL_VISUAL
) {
1408 term
->in_vbell
= TRUE
;
1409 term
->vbell_startpoint
= ticks
;
1417 if (term
->curs
.x
== 0 &&
1418 (term
->curs
.y
== 0 || term
->wrap
== 0))
1420 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1421 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1422 else if (term
->wrapnext
)
1423 term
->wrapnext
= FALSE
;
1427 term
->seen_disp_event
= TRUE
;
1430 compatibility(VT100
);
1434 compatibility(VT100
);
1438 if (term
->vt52_mode
)
1439 term
->termstate
= VT52_ESC
;
1441 compatibility(ANSIMIN
);
1442 term
->termstate
= SEEN_ESC
;
1443 term
->esc_query
= FALSE
;
1448 term
->wrapnext
= FALSE
;
1450 term
->seen_disp_event
= TRUE
;
1451 term
->paste_hold
= 0;
1453 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1456 if (has_compat(SCOANSI
)) {
1457 move(term
, 0, 0, 0);
1458 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1460 term
->wrapnext
= FALSE
;
1461 term
->seen_disp_event
= 1;
1465 compatibility(VT100
);
1467 if (term
->curs
.y
== term
->marg_b
)
1468 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1469 else if (term
->curs
.y
< term
->rows
- 1)
1471 if (term
->cfg
->lfhascr
)
1474 term
->wrapnext
= FALSE
;
1475 term
->seen_disp_event
= 1;
1476 term
->paste_hold
= 0;
1478 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1482 pos old_curs
= term
->curs
;
1483 unsigned long *ldata
= lineptr(term
->curs
.y
);
1487 } while (term
->curs
.x
< term
->cols
- 1 &&
1488 !term
->tabs
[term
->curs
.x
]);
1490 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1491 if (term
->curs
.x
>= term
->cols
/ 2)
1492 term
->curs
.x
= term
->cols
/ 2 - 1;
1494 if (term
->curs
.x
>= term
->cols
)
1495 term
->curs
.x
= term
->cols
- 1;
1499 check_selection(term
, old_curs
, term
->curs
);
1501 term
->seen_disp_event
= TRUE
;
1505 switch (term
->termstate
) {
1507 /* Only graphic characters get this far;
1508 * ctrls are stripped above */
1509 if (term
->wrapnext
&& term
->wrap
) {
1510 term
->cpos
[1] |= LATTR_WRAPPED
;
1511 if (term
->curs
.y
== term
->marg_b
)
1512 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1513 else if (term
->curs
.y
< term
->rows
- 1)
1517 term
->wrapnext
= FALSE
;
1521 if (term
->selstate
!= NO_SELECTION
) {
1522 pos cursplus
= term
->curs
;
1524 check_selection(term
, term
->curs
, cursplus
);
1526 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1528 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1530 extern int wcwidth(wchar_t ucs
);
1535 width
= wcwidth((wchar_t) c
);
1538 *term
->cpos
++ = c
| term
->curr_attr
;
1539 if (++term
->curs
.x
== term
->cols
) {
1540 *term
->cpos
|= LATTR_WRAPPED
;
1541 if (term
->curs
.y
== term
->marg_b
)
1542 scroll(term
, term
->marg_t
, term
->marg_b
,
1544 else if (term
->curs
.y
< term
->rows
- 1)
1549 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1552 *term
->cpos
++ = c
| term
->curr_attr
;
1559 if (term
->curs
.x
== term
->cols
) {
1562 term
->wrapnext
= TRUE
;
1563 if (term
->wrap
&& term
->vt52_mode
) {
1564 term
->cpos
[1] |= LATTR_WRAPPED
;
1565 if (term
->curs
.y
== term
->marg_b
)
1566 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1567 else if (term
->curs
.y
< term
->rows
- 1)
1571 term
->wrapnext
= FALSE
;
1574 term
->seen_disp_event
= 1;
1579 * This state is virtually identical to SEEN_ESC, with the
1580 * exception that we have an OSC sequence in the pipeline,
1581 * and _if_ we see a backslash, we process it.
1585 term
->termstate
= TOPLEVEL
;
1588 /* else fall through */
1590 if (c
>= ' ' && c
<= '/') {
1591 if (term
->esc_query
)
1592 term
->esc_query
= -1;
1594 term
->esc_query
= c
;
1597 term
->termstate
= TOPLEVEL
;
1598 switch (ANSI(c
, term
->esc_query
)) {
1599 case '[': /* enter CSI mode */
1600 term
->termstate
= SEEN_CSI
;
1601 term
->esc_nargs
= 1;
1602 term
->esc_args
[0] = ARG_DEFAULT
;
1603 term
->esc_query
= FALSE
;
1605 case ']': /* xterm escape sequences */
1606 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1607 compatibility(OTHER
);
1608 term
->termstate
= SEEN_OSC
;
1609 term
->esc_args
[0] = 0;
1611 case '7': /* save cursor */
1612 compatibility(VT100
);
1613 save_cursor(term
, TRUE
);
1615 case '8': /* restore cursor */
1616 compatibility(VT100
);
1617 save_cursor(term
, FALSE
);
1618 term
->seen_disp_event
= TRUE
;
1621 compatibility(VT100
);
1622 term
->app_keypad_keys
= TRUE
;
1625 compatibility(VT100
);
1626 term
->app_keypad_keys
= FALSE
;
1628 case 'D': /* exactly equivalent to LF */
1629 compatibility(VT100
);
1630 if (term
->curs
.y
== term
->marg_b
)
1631 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1632 else if (term
->curs
.y
< term
->rows
- 1)
1635 term
->wrapnext
= FALSE
;
1636 term
->seen_disp_event
= TRUE
;
1638 case 'E': /* exactly equivalent to CR-LF */
1639 compatibility(VT100
);
1641 if (term
->curs
.y
== term
->marg_b
)
1642 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1643 else if (term
->curs
.y
< term
->rows
- 1)
1646 term
->wrapnext
= FALSE
;
1647 term
->seen_disp_event
= TRUE
;
1649 case 'M': /* reverse index - backwards LF */
1650 compatibility(VT100
);
1651 if (term
->curs
.y
== term
->marg_t
)
1652 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1653 else if (term
->curs
.y
> 0)
1656 term
->wrapnext
= FALSE
;
1657 term
->seen_disp_event
= TRUE
;
1659 case 'Z': /* terminal type query */
1660 compatibility(VT100
);
1662 ldisc_send(term
->ldisc
, term
->id_string
,
1663 strlen(term
->id_string
), 0);
1665 case 'c': /* restore power-on settings */
1666 compatibility(VT100
);
1668 if (term
->ldisc
) /* cause ldisc to notice changes */
1669 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1670 if (term
->reset_132
) {
1671 if (!term
->cfg
->no_remote_resize
)
1672 request_resize(term
->frontend
, 80, term
->rows
);
1673 term
->reset_132
= 0;
1677 term
->seen_disp_event
= TRUE
;
1679 case 'H': /* set a tab */
1680 compatibility(VT100
);
1681 term
->tabs
[term
->curs
.x
] = TRUE
;
1684 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1685 compatibility(VT100
);
1687 unsigned long *ldata
;
1691 for (i
= 0; i
< term
->rows
; i
++) {
1693 for (j
= 0; j
< term
->cols
; j
++)
1694 ldata
[j
] = ATTR_DEFAULT
| 'E';
1695 ldata
[term
->cols
] = 0;
1698 term
->seen_disp_event
= TRUE
;
1699 scrtop
.x
= scrtop
.y
= 0;
1701 scrbot
.y
= term
->rows
;
1702 check_selection(term
, scrtop
, scrbot
);
1706 case ANSI('3', '#'):
1707 case ANSI('4', '#'):
1708 case ANSI('5', '#'):
1709 case ANSI('6', '#'):
1710 compatibility(VT100
);
1712 unsigned long nlattr
;
1713 unsigned long *ldata
;
1714 switch (ANSI(c
, term
->esc_query
)) {
1715 case ANSI('3', '#'):
1718 case ANSI('4', '#'):
1721 case ANSI('5', '#'):
1722 nlattr
= LATTR_NORM
;
1724 default: /* spiritually case ANSI('6', '#'): */
1725 nlattr
= LATTR_WIDE
;
1728 ldata
= lineptr(term
->curs
.y
);
1729 ldata
[term
->cols
] &= ~LATTR_MODE
;
1730 ldata
[term
->cols
] |= nlattr
;
1734 case ANSI('A', '('):
1735 compatibility(VT100
);
1736 if (!term
->cfg
->no_remote_charset
)
1737 term
->cset_attr
[0] = ATTR_GBCHR
;
1739 case ANSI('B', '('):
1740 compatibility(VT100
);
1741 if (!term
->cfg
->no_remote_charset
)
1742 term
->cset_attr
[0] = ATTR_ASCII
;
1744 case ANSI('0', '('):
1745 compatibility(VT100
);
1746 if (!term
->cfg
->no_remote_charset
)
1747 term
->cset_attr
[0] = ATTR_LINEDRW
;
1749 case ANSI('U', '('):
1750 compatibility(OTHER
);
1751 if (!term
->cfg
->no_remote_charset
)
1752 term
->cset_attr
[0] = ATTR_SCOACS
;
1755 case ANSI('A', ')'):
1756 compatibility(VT100
);
1757 if (!term
->cfg
->no_remote_charset
)
1758 term
->cset_attr
[1] = ATTR_GBCHR
;
1760 case ANSI('B', ')'):
1761 compatibility(VT100
);
1762 if (!term
->cfg
->no_remote_charset
)
1763 term
->cset_attr
[1] = ATTR_ASCII
;
1765 case ANSI('0', ')'):
1766 compatibility(VT100
);
1767 if (!term
->cfg
->no_remote_charset
)
1768 term
->cset_attr
[1] = ATTR_LINEDRW
;
1770 case ANSI('U', ')'):
1771 compatibility(OTHER
);
1772 if (!term
->cfg
->no_remote_charset
)
1773 term
->cset_attr
[1] = ATTR_SCOACS
;
1776 case ANSI('8', '%'): /* Old Linux code */
1777 case ANSI('G', '%'):
1778 compatibility(OTHER
);
1779 if (!term
->cfg
->no_remote_charset
)
1782 case ANSI('@', '%'):
1783 compatibility(OTHER
);
1784 if (!term
->cfg
->no_remote_charset
)
1790 term
->termstate
= TOPLEVEL
; /* default */
1792 if (term
->esc_nargs
<= ARGS_MAX
) {
1793 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1794 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1795 term
->esc_args
[term
->esc_nargs
- 1] =
1796 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1798 term
->termstate
= SEEN_CSI
;
1799 } else if (c
== ';') {
1800 if (++term
->esc_nargs
<= ARGS_MAX
)
1801 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1802 term
->termstate
= SEEN_CSI
;
1803 } else if (c
< '@') {
1804 if (term
->esc_query
)
1805 term
->esc_query
= -1;
1807 term
->esc_query
= TRUE
;
1809 term
->esc_query
= c
;
1810 term
->termstate
= SEEN_CSI
;
1812 switch (ANSI(c
, term
->esc_query
)) {
1813 case 'A': /* move up N lines */
1814 move(term
, term
->curs
.x
,
1815 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1816 term
->seen_disp_event
= TRUE
;
1818 case 'e': /* move down N lines */
1819 compatibility(ANSI
);
1822 move(term
, term
->curs
.x
,
1823 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1824 term
->seen_disp_event
= TRUE
;
1826 case ANSI('c', '>'): /* report xterm version */
1827 compatibility(OTHER
);
1828 /* this reports xterm version 136 so that VIM can
1829 use the drag messages from the mouse reporting */
1831 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1833 case 'a': /* move right N cols */
1834 compatibility(ANSI
);
1837 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1839 term
->seen_disp_event
= TRUE
;
1841 case 'D': /* move left N cols */
1842 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1844 term
->seen_disp_event
= TRUE
;
1846 case 'E': /* move down N lines and CR */
1847 compatibility(ANSI
);
1849 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1850 term
->seen_disp_event
= TRUE
;
1852 case 'F': /* move up N lines and CR */
1853 compatibility(ANSI
);
1855 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1856 term
->seen_disp_event
= TRUE
;
1859 case '`': /* set horizontal posn */
1860 compatibility(ANSI
);
1861 move(term
, def(term
->esc_args
[0], 1) - 1,
1863 term
->seen_disp_event
= TRUE
;
1865 case 'd': /* set vertical posn */
1866 compatibility(ANSI
);
1867 move(term
, term
->curs
.x
,
1868 ((term
->dec_om ? term
->marg_t
: 0) +
1869 def(term
->esc_args
[0], 1) - 1),
1870 (term
->dec_om ?
2 : 0));
1871 term
->seen_disp_event
= TRUE
;
1874 case 'f': /* set horz and vert posns at once */
1875 if (term
->esc_nargs
< 2)
1876 term
->esc_args
[1] = ARG_DEFAULT
;
1877 move(term
, def(term
->esc_args
[1], 1) - 1,
1878 ((term
->dec_om ? term
->marg_t
: 0) +
1879 def(term
->esc_args
[0], 1) - 1),
1880 (term
->dec_om ?
2 : 0));
1881 term
->seen_disp_event
= TRUE
;
1883 case 'J': /* erase screen or parts of it */
1885 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1888 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1891 term
->seen_disp_event
= TRUE
;
1893 case 'K': /* erase line or parts of it */
1895 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1898 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1900 term
->seen_disp_event
= TRUE
;
1902 case 'L': /* insert lines */
1903 compatibility(VT102
);
1904 if (term
->curs
.y
<= term
->marg_b
)
1905 scroll(term
, term
->curs
.y
, term
->marg_b
,
1906 -def(term
->esc_args
[0], 1), FALSE
);
1908 term
->seen_disp_event
= TRUE
;
1910 case 'M': /* delete lines */
1911 compatibility(VT102
);
1912 if (term
->curs
.y
<= term
->marg_b
)
1913 scroll(term
, term
->curs
.y
, term
->marg_b
,
1914 def(term
->esc_args
[0], 1),
1917 term
->seen_disp_event
= TRUE
;
1919 case '@': /* insert chars */
1920 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1921 compatibility(VT102
);
1922 insch(term
, def(term
->esc_args
[0], 1));
1923 term
->seen_disp_event
= TRUE
;
1925 case 'P': /* delete chars */
1926 compatibility(VT102
);
1927 insch(term
, -def(term
->esc_args
[0], 1));
1928 term
->seen_disp_event
= TRUE
;
1930 case 'c': /* terminal type query */
1931 compatibility(VT100
);
1932 /* This is the response for a VT102 */
1934 ldisc_send(term
->ldisc
, term
->id_string
,
1935 strlen(term
->id_string
), 0);
1937 case 'n': /* cursor position query */
1939 if (term
->esc_args
[0] == 6) {
1941 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1943 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1944 } else if (term
->esc_args
[0] == 5) {
1945 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1949 case 'h': /* toggle modes to high */
1951 compatibility(VT100
);
1954 for (i
= 0; i
< term
->esc_nargs
; i
++)
1955 toggle_mode(term
, term
->esc_args
[i
],
1956 term
->esc_query
, TRUE
);
1961 compatibility(VT100
);
1963 if (term
->esc_nargs
!= 1) break;
1964 if (term
->esc_args
[0] == 5 && *term
->cfg
->printer
) {
1965 term
->printing
= TRUE
;
1966 term
->only_printing
= !term
->esc_query
;
1967 term
->print_state
= 0;
1968 term_print_setup(term
);
1969 } else if (term
->esc_args
[0] == 4 &&
1971 term_print_finish(term
);
1975 case 'l': /* toggle modes to low */
1977 compatibility(VT100
);
1980 for (i
= 0; i
< term
->esc_nargs
; i
++)
1981 toggle_mode(term
, term
->esc_args
[i
],
1982 term
->esc_query
, FALSE
);
1985 case 'g': /* clear tabs */
1986 compatibility(VT100
);
1987 if (term
->esc_nargs
== 1) {
1988 if (term
->esc_args
[0] == 0) {
1989 term
->tabs
[term
->curs
.x
] = FALSE
;
1990 } else if (term
->esc_args
[0] == 3) {
1992 for (i
= 0; i
< term
->cols
; i
++)
1993 term
->tabs
[i
] = FALSE
;
1997 case 'r': /* set scroll margins */
1998 compatibility(VT100
);
1999 if (term
->esc_nargs
<= 2) {
2001 top
= def(term
->esc_args
[0], 1) - 1;
2002 bot
= (term
->esc_nargs
<= 1
2003 || term
->esc_args
[1] == 0 ?
2005 def(term
->esc_args
[1], term
->rows
)) - 1;
2006 if (bot
>= term
->rows
)
2007 bot
= term
->rows
- 1;
2008 /* VTTEST Bug 9 - if region is less than 2 lines
2009 * don't change region.
2011 if (bot
- top
> 0) {
2016 * I used to think the cursor should be
2017 * placed at the top of the newly marginned
2018 * area. Apparently not: VMS TPU falls over
2021 * Well actually it should for
2024 term
->curs
.y
= (term
->dec_om ?
2027 term
->seen_disp_event
= TRUE
;
2031 case 'm': /* set graphics rendition */
2034 * A VT100 without the AVO only had one
2035 * attribute, either underline or
2036 * reverse video depending on the
2037 * cursor type, this was selected by
2041 * This is sometimes DIM, eg on the
2044 * This is sometimes INVIS various ANSI.
2046 * This like 22 disables BOLD, DIM and INVIS
2048 * The ANSI colours appear on any
2049 * terminal that has colour (obviously)
2050 * but the interaction between sgr0 and
2051 * the colours varies but is usually
2052 * related to the background colour
2053 * erase item. The interaction between
2054 * colour attributes and the mono ones
2055 * is also very implementation
2058 * The 39 and 49 attributes are likely
2059 * to be unimplemented.
2062 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2063 switch (def(term
->esc_args
[i
], 0)) {
2064 case 0: /* restore defaults */
2065 term
->curr_attr
= ATTR_DEFAULT
;
2067 case 1: /* enable bold */
2068 compatibility(VT100AVO
);
2069 term
->curr_attr
|= ATTR_BOLD
;
2071 case 21: /* (enable double underline) */
2072 compatibility(OTHER
);
2073 case 4: /* enable underline */
2074 compatibility(VT100AVO
);
2075 term
->curr_attr
|= ATTR_UNDER
;
2077 case 5: /* enable blink */
2078 compatibility(VT100AVO
);
2079 term
->curr_attr
|= ATTR_BLINK
;
2081 case 7: /* enable reverse video */
2082 term
->curr_attr
|= ATTR_REVERSE
;
2084 case 10: /* SCO acs off */
2085 compatibility(SCOANSI
);
2086 if (term
->cfg
->no_remote_charset
) break;
2087 term
->sco_acs
= 0; break;
2088 case 11: /* SCO acs on */
2089 compatibility(SCOANSI
);
2090 if (term
->cfg
->no_remote_charset
) break;
2091 term
->sco_acs
= 1; break;
2092 case 12: /* SCO acs on flipped */
2093 compatibility(SCOANSI
);
2094 if (term
->cfg
->no_remote_charset
) break;
2095 term
->sco_acs
= 2; break;
2096 case 22: /* disable bold */
2097 compatibility2(OTHER
, VT220
);
2098 term
->curr_attr
&= ~ATTR_BOLD
;
2100 case 24: /* disable underline */
2101 compatibility2(OTHER
, VT220
);
2102 term
->curr_attr
&= ~ATTR_UNDER
;
2104 case 25: /* disable blink */
2105 compatibility2(OTHER
, VT220
);
2106 term
->curr_attr
&= ~ATTR_BLINK
;
2108 case 27: /* disable reverse video */
2109 compatibility2(OTHER
, VT220
);
2110 term
->curr_attr
&= ~ATTR_REVERSE
;
2121 term
->curr_attr
&= ~ATTR_FGMASK
;
2123 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2125 case 39: /* default-foreground */
2126 term
->curr_attr
&= ~ATTR_FGMASK
;
2127 term
->curr_attr
|= ATTR_DEFFG
;
2138 term
->curr_attr
&= ~ATTR_BGMASK
;
2140 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2142 case 49: /* default-background */
2143 term
->curr_attr
&= ~ATTR_BGMASK
;
2144 term
->curr_attr
|= ATTR_DEFBG
;
2149 term
->erase_char
= (' ' | ATTR_ASCII
|
2155 case 's': /* save cursor */
2156 save_cursor(term
, TRUE
);
2158 case 'u': /* restore cursor */
2159 save_cursor(term
, FALSE
);
2160 term
->seen_disp_event
= TRUE
;
2162 case 't': /* set page size - ie window height */
2164 * VT340/VT420 sequence DECSLPP, DEC only allows values
2165 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2166 * illegal values (eg first arg 1..9) for window changing
2169 if (term
->esc_nargs
<= 1
2170 && (term
->esc_args
[0] < 1 ||
2171 term
->esc_args
[0] >= 24)) {
2172 compatibility(VT340TEXT
);
2173 if (!term
->cfg
->no_remote_resize
)
2174 request_resize(term
->frontend
, term
->cols
,
2175 def(term
->esc_args
[0], 24));
2177 } else if (term
->esc_nargs
>= 1 &&
2178 term
->esc_args
[0] >= 1 &&
2179 term
->esc_args
[0] < 24) {
2180 compatibility(OTHER
);
2182 switch (term
->esc_args
[0]) {
2186 set_iconic(term
->frontend
, FALSE
);
2189 set_iconic(term
->frontend
, TRUE
);
2192 if (term
->esc_nargs
>= 3) {
2193 if (!term
->cfg
->no_remote_resize
)
2194 move_window(term
->frontend
,
2195 def(term
->esc_args
[1], 0),
2196 def(term
->esc_args
[2], 0));
2200 /* We should resize the window to a given
2201 * size in pixels here, but currently our
2202 * resizing code isn't healthy enough to
2207 set_zorder(term
->frontend
, TRUE
);
2210 /* move to bottom */
2211 set_zorder(term
->frontend
, FALSE
);
2214 refresh_window(term
->frontend
);
2217 if (term
->esc_nargs
>= 3) {
2218 if (!term
->cfg
->no_remote_resize
)
2219 request_resize(term
->frontend
,
2220 def(term
->esc_args
[2], term
->cfg
->width
),
2221 def(term
->esc_args
[1], term
->cfg
->height
));
2225 if (term
->esc_nargs
>= 2)
2226 set_zoomed(term
->frontend
,
2232 ldisc_send(term
->ldisc
,
2233 is_iconic(term
->frontend
) ?
2234 "\033[1t" : "\033[2t", 4, 0);
2238 get_window_pos(term
->frontend
, &x
, &y
);
2239 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2240 ldisc_send(term
->ldisc
, buf
, len
, 0);
2245 get_window_pixels(term
->frontend
, &x
, &y
);
2246 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2247 ldisc_send(term
->ldisc
, buf
, len
, 0);
2252 len
= sprintf(buf
, "\033[8;%d;%dt",
2253 term
->rows
, term
->cols
);
2254 ldisc_send(term
->ldisc
, buf
, len
, 0);
2259 * Hmmm. Strictly speaking we
2260 * should return `the size of the
2261 * screen in characters', but
2262 * that's not easy: (a) window
2263 * furniture being what it is it's
2264 * hard to compute, and (b) in
2265 * resize-font mode maximising the
2266 * window wouldn't change the
2267 * number of characters. *shrug*. I
2268 * think we'll ignore it for the
2269 * moment and see if anyone
2270 * complains, and then ask them
2271 * what they would like it to do.
2276 p
= get_window_title(term
->frontend
, TRUE
);
2278 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2279 ldisc_send(term
->ldisc
, p
, len
, 0);
2280 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2285 p
= get_window_title(term
->frontend
,FALSE
);
2287 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2288 ldisc_send(term
->ldisc
, p
, len
, 0);
2289 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2296 compatibility(SCOANSI
);
2297 scroll(term
, term
->marg_t
, term
->marg_b
,
2298 def(term
->esc_args
[0], 1), TRUE
);
2300 term
->wrapnext
= FALSE
;
2301 term
->seen_disp_event
= TRUE
;
2304 compatibility(SCOANSI
);
2305 scroll(term
, term
->marg_t
, term
->marg_b
,
2306 -def(term
->esc_args
[0], 1), TRUE
);
2308 term
->wrapnext
= FALSE
;
2309 term
->seen_disp_event
= TRUE
;
2311 case ANSI('|', '*'):
2312 /* VT420 sequence DECSNLS
2313 * Set number of lines on screen
2314 * VT420 uses VGA like hardware and can support any size in
2315 * reasonable range (24..49 AIUI) with no default specified.
2317 compatibility(VT420
);
2318 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2319 if (!term
->cfg
->no_remote_resize
)
2320 request_resize(term
->frontend
, term
->cols
,
2321 def(term
->esc_args
[0],
2322 term
->cfg
->height
));
2326 case ANSI('|', '$'):
2327 /* VT340/VT420 sequence DECSCPP
2328 * Set number of columns per page
2329 * Docs imply range is only 80 or 132, but I'll allow any.
2331 compatibility(VT340TEXT
);
2332 if (term
->esc_nargs
<= 1) {
2333 if (!term
->cfg
->no_remote_resize
)
2334 request_resize(term
->frontend
,
2335 def(term
->esc_args
[0],
2336 term
->cfg
->width
), term
->rows
);
2340 case 'X': /* write N spaces w/o moving cursor */
2341 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2342 compatibility(ANSIMIN
);
2344 int n
= def(term
->esc_args
[0], 1);
2346 unsigned long *p
= term
->cpos
;
2347 if (n
> term
->cols
- term
->curs
.x
)
2348 n
= term
->cols
- term
->curs
.x
;
2349 cursplus
= term
->curs
;
2351 check_selection(term
, term
->curs
, cursplus
);
2353 *p
++ = term
->erase_char
;
2354 term
->seen_disp_event
= TRUE
;
2357 case 'x': /* report terminal characteristics */
2358 compatibility(VT100
);
2361 int i
= def(term
->esc_args
[0], 0);
2362 if (i
== 0 || i
== 1) {
2363 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2365 ldisc_send(term
->ldisc
, buf
, 20, 0);
2369 case 'Z': /* BackTab for xterm */
2370 compatibility(OTHER
);
2372 int i
= def(term
->esc_args
[0], 1);
2373 pos old_curs
= term
->curs
;
2375 for(;i
>0 && term
->curs
.x
>0; i
--) {
2378 } while (term
->curs
.x
>0 &&
2379 !term
->tabs
[term
->curs
.x
]);
2382 check_selection(term
, old_curs
, term
->curs
);
2385 case ANSI('L', '='):
2386 compatibility(OTHER
);
2387 term
->use_bce
= (term
->esc_args
[0] <= 0);
2388 term
->erase_char
= ERASE_CHAR
;
2390 term
->erase_char
= (' ' | ATTR_ASCII
|
2392 (ATTR_FGMASK
| ATTR_BGMASK
)));
2394 case ANSI('E', '='):
2395 compatibility(OTHER
);
2396 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2398 case ANSI('p', '"'):
2400 * Allow the host to make this emulator a
2401 * 'perfect' VT102. This first appeared in
2402 * the VT220, but we do need to get back to
2403 * PuTTY mode so I won't check it.
2405 * The arg in 40..42,50 are a PuTTY extension.
2406 * The 2nd arg, 8bit vs 7bit is not checked.
2408 * Setting VT102 mode should also change
2409 * the Fkeys to generate PF* codes as a
2410 * real VT102 has no Fkeys. The VT220 does
2411 * this, F11..F13 become ESC,BS,LF other
2412 * Fkeys send nothing.
2414 * Note ESC c will NOT change this!
2417 switch (term
->esc_args
[0]) {
2419 term
->compatibility_level
&= ~TM_VTXXX
;
2420 term
->compatibility_level
|= TM_VT102
;
2423 term
->compatibility_level
&= ~TM_VTXXX
;
2424 term
->compatibility_level
|= TM_VT220
;
2428 if (term
->esc_args
[0] > 60 &&
2429 term
->esc_args
[0] < 70)
2430 term
->compatibility_level
|= TM_VTXXX
;
2434 term
->compatibility_level
&= TM_VTXXX
;
2437 term
->compatibility_level
= TM_PUTTY
;
2440 term
->compatibility_level
= TM_SCOANSI
;
2444 term
->compatibility_level
= TM_PUTTY
;
2450 /* Change the response to CSI c */
2451 if (term
->esc_args
[0] == 50) {
2454 strcpy(term
->id_string
, "\033[?");
2455 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2457 strcat(term
->id_string
, ";");
2458 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2459 strcat(term
->id_string
, lbuf
);
2461 strcat(term
->id_string
, "c");
2464 /* Is this a good idea ?
2465 * Well we should do a soft reset at this point ...
2467 if (!has_compat(VT420
) && has_compat(VT100
)) {
2468 if (!term
->cfg
->no_remote_resize
) {
2469 if (term
->reset_132
)
2470 request_resize(132, 24);
2472 request_resize(80, 24);
2480 term
->osc_w
= FALSE
;
2482 case 'P': /* Linux palette sequence */
2483 term
->termstate
= SEEN_OSC_P
;
2484 term
->osc_strlen
= 0;
2486 case 'R': /* Linux palette reset */
2487 palette_reset(term
->frontend
);
2488 term_invalidate(term
);
2489 term
->termstate
= TOPLEVEL
;
2491 case 'W': /* word-set */
2492 term
->termstate
= SEEN_OSC_W
;
2505 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2509 * Grotty hack to support xterm and DECterm title
2510 * sequences concurrently.
2512 if (term
->esc_args
[0] == 2) {
2513 term
->esc_args
[0] = 1;
2516 /* else fall through */
2518 term
->termstate
= OSC_STRING
;
2519 term
->osc_strlen
= 0;
2524 * This OSC stuff is EVIL. It takes just one character to get into
2525 * sysline mode and it's not initially obvious how to get out.
2526 * So I've added CR and LF as string aborts.
2527 * This shouldn't effect compatibility as I believe embedded
2528 * control characters are supposed to be interpreted (maybe?)
2529 * and they don't display anything useful anyway.
2533 if (c
== '\012' || c
== '\015') {
2534 term
->termstate
= TOPLEVEL
;
2535 } else if (c
== 0234 || c
== '\007') {
2537 * These characters terminate the string; ST and BEL
2538 * terminate the sequence and trigger instant
2539 * processing of it, whereas ESC goes back to SEEN_ESC
2540 * mode unless it is followed by \, in which case it is
2541 * synonymous with ST in the first place.
2544 term
->termstate
= TOPLEVEL
;
2545 } else if (c
== '\033')
2546 term
->termstate
= OSC_MAYBE_ST
;
2547 else if (term
->osc_strlen
< OSC_STR_MAX
)
2548 term
->osc_string
[term
->osc_strlen
++] = c
;
2552 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2554 if (c
>= '0' && c
<= '9')
2556 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2558 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2561 term
->termstate
= TOPLEVEL
;
2564 term
->osc_string
[term
->osc_strlen
++] = val
;
2565 if (term
->osc_strlen
>= 7) {
2566 palette_set(term
->frontend
, term
->osc_string
[0],
2567 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2568 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2569 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2570 term_invalidate(term
);
2571 term
->termstate
= TOPLEVEL
;
2587 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2590 term
->termstate
= OSC_STRING
;
2591 term
->osc_strlen
= 0;
2595 term
->termstate
= TOPLEVEL
;
2596 term
->seen_disp_event
= TRUE
;
2599 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2602 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2605 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2608 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2611 * From the VT100 Manual
2612 * NOTE: The special graphics characters in the VT100
2613 * are different from those in the VT52
2615 * From VT102 manual:
2616 * 137 _ Blank - Same
2617 * 140 ` Reserved - Humm.
2618 * 141 a Solid rectangle - Similar
2619 * 142 b 1/ - Top half of fraction for the
2620 * 143 c 3/ - subscript numbers below.
2623 * 146 f Degrees - Same
2624 * 147 g Plus or minus - Same
2626 * 151 i Ellipsis (dots)
2629 * 154 l Bar at scan 0
2630 * 155 m Bar at scan 1
2631 * 156 n Bar at scan 2
2632 * 157 o Bar at scan 3 - Similar
2633 * 160 p Bar at scan 4 - Similar
2634 * 161 q Bar at scan 5 - Similar
2635 * 162 r Bar at scan 6 - Same
2636 * 163 s Bar at scan 7 - Similar
2651 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2654 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2657 move(term
, 0, 0, 0);
2660 if (term
->curs
.y
== 0)
2661 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2662 else if (term
->curs
.y
> 0)
2665 term
->wrapnext
= FALSE
;
2668 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2672 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2676 /* XXX Print cursor line */
2679 /* XXX Start controller mode */
2682 /* XXX Stop controller mode */
2686 term
->termstate
= VT52_Y1
;
2690 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2693 term
->app_keypad_keys
= TRUE
;
2696 term
->app_keypad_keys
= FALSE
;
2699 /* XXX This should switch to VT100 mode not current or default
2700 * VT mode. But this will only have effect in a VT220+
2703 term
->vt52_mode
= FALSE
;
2704 term
->blink_is_real
= term
->cfg
->blinktext
;
2708 /* XXX Enter auto print mode */
2711 /* XXX Exit auto print mode */
2714 /* XXX Print screen */
2720 /* compatibility(ATARI) */
2721 move(term
, 0, 0, 0);
2722 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2726 /* compatibility(ATARI) */
2727 if (term
->curs
.y
<= term
->marg_b
)
2728 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2731 /* compatibility(ATARI) */
2732 if (term
->curs
.y
<= term
->marg_b
)
2733 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2736 /* compatibility(ATARI) */
2737 term
->termstate
= VT52_FG
;
2740 /* compatibility(ATARI) */
2741 term
->termstate
= VT52_BG
;
2744 /* compatibility(ATARI) */
2745 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2749 /* compatibility(ATARI) */
2750 term
->cursor_on
= TRUE
;
2753 /* compatibility(ATARI) */
2754 term
->cursor_on
= FALSE
;
2756 /* case 'j': Save cursor position - broken on ST */
2757 /* case 'k': Restore cursor position */
2759 /* compatibility(ATARI) */
2760 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2762 term
->wrapnext
= FALSE
;
2766 /* compatibility(ATARI) */
2767 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2770 /* compatibility(ATARI) */
2771 term
->curr_attr
|= ATTR_REVERSE
;
2774 /* compatibility(ATARI) */
2775 term
->curr_attr
&= ~ATTR_REVERSE
;
2777 case 'v': /* wrap Autowrap on - Wyse style */
2778 /* compatibility(ATARI) */
2781 case 'w': /* Autowrap off */
2782 /* compatibility(ATARI) */
2787 /* compatibility(OTHER) */
2788 term
->vt52_bold
= FALSE
;
2789 term
->curr_attr
= ATTR_DEFAULT
;
2791 term
->erase_char
= (' ' | ATTR_ASCII
|
2793 (ATTR_FGMASK
| ATTR_BGMASK
)));
2796 /* compatibility(VI50) */
2797 term
->curr_attr
|= ATTR_UNDER
;
2800 /* compatibility(VI50) */
2801 term
->curr_attr
&= ~ATTR_UNDER
;
2804 /* compatibility(VI50) */
2805 term
->vt52_bold
= TRUE
;
2806 term
->curr_attr
|= ATTR_BOLD
;
2809 /* compatibility(VI50) */
2810 term
->vt52_bold
= FALSE
;
2811 term
->curr_attr
&= ~ATTR_BOLD
;
2817 term
->termstate
= VT52_Y2
;
2818 move(term
, term
->curs
.x
, c
- ' ', 0);
2821 term
->termstate
= TOPLEVEL
;
2822 move(term
, c
- ' ', term
->curs
.y
, 0);
2827 term
->termstate
= TOPLEVEL
;
2828 term
->curr_attr
&= ~ATTR_FGMASK
;
2829 term
->curr_attr
&= ~ATTR_BOLD
;
2830 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2831 if ((c
& 0x8) || term
->vt52_bold
)
2832 term
->curr_attr
|= ATTR_BOLD
;
2835 term
->erase_char
= (' ' | ATTR_ASCII
|
2837 (ATTR_FGMASK
| ATTR_BGMASK
)));
2840 term
->termstate
= TOPLEVEL
;
2841 term
->curr_attr
&= ~ATTR_BGMASK
;
2842 term
->curr_attr
&= ~ATTR_BLINK
;
2843 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2845 /* Note: bold background */
2847 term
->curr_attr
|= ATTR_BLINK
;
2850 term
->erase_char
= (' ' | ATTR_ASCII
|
2852 (ATTR_FGMASK
| ATTR_BGMASK
)));
2855 default: break; /* placate gcc warning about enum use */
2857 if (term
->selstate
!= NO_SELECTION
) {
2858 pos cursplus
= term
->curs
;
2860 check_selection(term
, term
->curs
, cursplus
);
2864 term_print_flush(term
);
2869 * Compare two lines to determine whether they are sufficiently
2870 * alike to scroll-optimise one to the other. Return the degree of
2873 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2877 for (i
= n
= 0; i
< term
->cols
; i
++)
2878 n
+= (*a
++ == *b
++);
2884 * Given a context, update the window. Out of paranoia, we don't
2885 * allow WM_PAINT responses to do scrolling optimisations.
2887 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2889 int i
, j
, our_curs_y
;
2890 unsigned long rv
, cursor
;
2893 long cursor_background
= ERASE_CHAR
;
2894 unsigned long ticks
;
2897 * Check the visual bell state.
2899 if (term
->in_vbell
) {
2900 ticks
= GETTICKCOUNT();
2901 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2902 term
->in_vbell
= FALSE
;
2905 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2908 * screen array, disptop, scrtop,
2910 * cfg.blinkpc, blink_is_real, tblinker,
2911 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2914 /* Has the cursor position or type changed ? */
2915 if (term
->cursor_on
) {
2916 if (term
->has_focus
) {
2917 if (term
->blinker
|| !term
->cfg
->blink_cur
)
2918 cursor
= TATTR_ACTCURS
;
2922 cursor
= TATTR_PASCURS
;
2924 cursor
|= TATTR_RIGHTCURS
;
2927 our_curs_y
= term
->curs
.y
- term
->disptop
;
2929 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2931 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2933 if (term
->dispcurs
> term
->disptext
&&
2934 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2935 term
->dispcurs
[-1] |= ATTR_INVALID
;
2936 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2937 term
->dispcurs
[1] |= ATTR_INVALID
;
2938 *term
->dispcurs
|= ATTR_INVALID
;
2941 term
->dispcurs
= NULL
;
2943 /* The normal screen data */
2944 for (i
= 0; i
< term
->rows
; i
++) {
2945 unsigned long *ldata
;
2947 int idx
, dirty_line
, dirty_run
, selected
;
2948 unsigned long attr
= 0;
2949 int updated_line
= 0;
2952 int last_run_dirty
= 0;
2954 scrpos
.y
= i
+ term
->disptop
;
2955 ldata
= lineptr(scrpos
.y
);
2956 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2958 idx
= i
* (term
->cols
+ 1);
2959 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2960 term
->disptext
[idx
+ term
->cols
]);
2961 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2963 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2964 unsigned long tattr
, tchar
;
2965 unsigned long *d
= ldata
+ j
;
2969 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2970 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2971 switch (tchar
& CSET_MASK
) {
2973 tchar
= unitab_line
[tchar
& 0xFF];
2976 tchar
= unitab_xterm
[tchar
& 0xFF];
2979 tchar
= unitab_scoacs
[tchar
&0xFF];
2982 tattr
|= (tchar
& CSET_MASK
);
2984 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2987 /* Video reversing things */
2988 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
2989 if (term
->seltype
== LEXICOGRAPHIC
)
2990 selected
= (posle(term
->selstart
, scrpos
) &&
2991 poslt(scrpos
, term
->selend
));
2993 selected
= (posPle(term
->selstart
, scrpos
) &&
2994 posPlt(scrpos
, term
->selend
));
2998 ^ (selected ? ATTR_REVERSE
: 0));
3000 /* 'Real' blinking ? */
3001 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
3002 if (term
->has_focus
&& term
->tblinker
) {
3004 tattr
&= ~CSET_MASK
;
3007 tattr
&= ~ATTR_BLINK
;
3011 * Check the font we'll _probably_ be using to see if
3012 * the character is wide when we don't want it to be.
3014 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
3015 if ((tattr
& ATTR_WIDE
) == 0 &&
3016 char_width(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
3017 tattr
|= ATTR_NARROW
;
3018 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
3019 tattr
|= ATTR_NARROW
;
3021 /* Cursor here ? Save the 'background' */
3022 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3023 cursor_background
= tattr
| tchar
;
3024 term
->dispcurs
= term
->disptext
+ idx
;
3027 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
3030 break_run
= (tattr
!= attr
|| j
- start
>= sizeof(ch
));
3032 /* Special hack for VT100 Linedraw glyphs */
3033 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3034 && tchar
<= 0xBD) break_run
= TRUE
;
3036 if (!dbcs_screenfont
&& !dirty_line
) {
3037 if ((tchar
| tattr
) == term
->disptext
[idx
])
3039 else if (!dirty_run
&& ccount
== 1)
3044 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3045 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3051 if (dbcs_screenfont
)
3052 last_run_dirty
= dirty_run
;
3053 dirty_run
= dirty_line
;
3056 if ((tchar
| tattr
) != term
->disptext
[idx
])
3058 ch
[ccount
++] = (char) tchar
;
3059 term
->disptext
[idx
] = tchar
| tattr
;
3061 /* If it's a wide char step along to the next one. */
3062 if (tattr
& ATTR_WIDE
) {
3063 if (++j
< term
->cols
) {
3066 /* Cursor is here ? Ouch! */
3067 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3068 cursor_background
= *d
;
3069 term
->dispcurs
= term
->disptext
+ idx
;
3071 if (term
->disptext
[idx
] != *d
)
3073 term
->disptext
[idx
] = *d
;
3077 if (dirty_run
&& ccount
> 0) {
3078 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3082 /* Cursor on this line ? (and changed) */
3083 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3084 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3085 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3086 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3087 term
->curstype
= cursor
;
3093 * Flick the switch that says if blinking things should be shown or hidden.
3096 void term_blink(Terminal
*term
, int flg
)
3098 long now
, blink_diff
;
3100 now
= GETTICKCOUNT();
3101 blink_diff
= now
- term
->last_tblink
;
3103 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3104 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3105 term
->last_tblink
= now
;
3106 term
->tblinker
= !term
->tblinker
;
3111 term
->last_blink
= now
;
3115 blink_diff
= now
- term
->last_blink
;
3117 /* Make sure the cursor blinks no faster than system blink rate */
3118 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3121 term
->last_blink
= now
;
3122 term
->blinker
= !term
->blinker
;
3126 * Invalidate the whole screen so it will be repainted in full.
3128 void term_invalidate(Terminal
*term
)
3132 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3133 term
->disptext
[i
] = ATTR_INVALID
;
3137 * Paint the window in response to a WM_PAINT message.
3139 void term_paint(Terminal
*term
, Context ctx
,
3140 int left
, int top
, int right
, int bottom
, int immediately
)
3143 if (left
< 0) left
= 0;
3144 if (top
< 0) top
= 0;
3145 if (right
>= term
->cols
) right
= term
->cols
-1;
3146 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3148 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3149 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3150 LATTR_MODE
) == LATTR_NORM
)
3151 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3152 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3154 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3155 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3158 /* This should happen soon enough, also for some reason it sometimes
3159 * fails to actually do anything when re-sizing ... painting the wrong
3163 do_paint (term
, ctx
, FALSE
);
3167 * Attempt to scroll the scrollback. The second parameter gives the
3168 * position we want to scroll to; the first is +1 to denote that
3169 * this position is relative to the beginning of the scrollback, -1
3170 * to denote it is relative to the end, and 0 to denote that it is
3171 * relative to the current position.
3173 void term_scroll(Terminal
*term
, int rel
, int where
)
3175 int sbtop
= -count234(term
->scrollback
);
3176 #ifdef OPTIMISE_SCROLL
3177 int olddisptop
= term
->disptop
;
3179 #endif /* OPTIMISE_SCROLL */
3181 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3182 if (term
->disptop
< sbtop
)
3183 term
->disptop
= sbtop
;
3184 if (term
->disptop
> 0)
3187 #ifdef OPTIMISE_SCROLL
3188 shift
= (term
->disptop
- olddisptop
);
3189 if (shift
< term
->rows
&& shift
> -term
->rows
)
3190 scroll_display(term
, 0, term
->rows
- 1, shift
);
3191 #endif /* OPTIMISE_SCROLL */
3195 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3198 wchar_t *wbptr
; /* where next char goes within workbuf */
3200 int wblen
= 0; /* workbuf len */
3201 int buflen
; /* amount of memory allocated to workbuf */
3203 buflen
= 5120; /* Default size */
3204 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3205 wbptr
= workbuf
; /* start filling here */
3206 old_top_x
= top
.x
; /* needed for rect==1 */
3208 while (poslt(top
, bottom
)) {
3210 unsigned long *ldata
= lineptr(top
.y
);
3214 * nlpos will point at the maximum position on this line we
3215 * should copy up to. So we start it at the end of the
3219 nlpos
.x
= term
->cols
;
3222 * ... move it backwards if there's unused space at the end
3223 * of the line (and also set `nl' if this is the case,
3224 * because in normal selection mode this means we need a
3225 * newline at the end)...
3227 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3228 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3229 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3230 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3231 && poslt(top
, nlpos
))
3233 if (poslt(nlpos
, bottom
))
3238 * ... and then clip it to the terminal x coordinate if
3239 * we're doing rectangular selection. (In this case we
3240 * still did the above, so that copying e.g. the right-hand
3241 * column from a table doesn't fill with spaces on the
3245 if (nlpos
.x
> bottom
.x
)
3247 nl
= (top
.y
< bottom
.y
);
3250 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3253 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3255 wchar_t cbuf
[16], *p
;
3256 int uc
= (ldata
[top
.x
] & 0xFFFF);
3259 if (uc
== UCSWIDE
) {
3264 switch (uc
& CSET_MASK
) {
3266 if (!term
->cfg
->rawcnp
) {
3267 uc
= unitab_xterm
[uc
& 0xFF];
3271 uc
= unitab_line
[uc
& 0xFF];
3274 uc
= unitab_scoacs
[uc
&0xFF];
3277 switch (uc
& CSET_MASK
) {
3279 uc
= unitab_font
[uc
& 0xFF];
3282 uc
= unitab_oemcp
[uc
& 0xFF];
3286 set
= (uc
& CSET_MASK
);
3287 c
= (uc
& CHAR_MASK
);
3291 if (DIRECT_FONT(uc
)) {
3292 if (c
>= ' ' && c
!= 0x7F) {
3296 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3298 buf
[1] = ldata
[top
.x
+ 1];
3299 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3303 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3307 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3314 for (p
= cbuf
; *p
; p
++) {
3315 /* Enough overhead for trailing NL and nul */
3316 if (wblen
>= buflen
- 16) {
3319 sizeof(wchar_t) * (buflen
+= 100));
3320 wbptr
= workbuf
+ wblen
;
3329 for (i
= 0; i
< sel_nl_sz
; i
++) {
3331 *wbptr
++ = sel_nl
[i
];
3335 top
.x
= rect ? old_top_x
: 0;
3337 #if SELECTION_NUL_TERMINATED
3341 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3342 if (buflen
> 0) /* indicates we allocated this buffer */
3346 void term_copyall(Terminal
*term
)
3349 top
.y
= -count234(term
->scrollback
);
3351 clipme(term
, top
, term
->curs
, 0);
3355 * The wordness array is mainly for deciding the disposition of the
3356 * US-ASCII characters.
3358 static int wordtype(Terminal
*term
, int uc
)
3361 int start
, end
, ctype
;
3363 static const struct ucsword ucs_words
[] = {
3369 0x037e, 0x037e, 1}, /* Greek question mark */
3371 0x0387, 0x0387, 1}, /* Greek ano teleia */
3373 0x055a, 0x055f, 1}, /* Armenian punctuation */
3375 0x0589, 0x0589, 1}, /* Armenian full stop */
3377 0x0700, 0x070d, 1}, /* Syriac punctuation */
3379 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3381 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3383 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3385 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3387 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3389 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3391 0x2000, 0x200a, 0}, /* Various spaces */
3393 0x2070, 0x207f, 2}, /* superscript */
3395 0x2080, 0x208f, 2}, /* subscript */
3397 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3399 0x3000, 0x3000, 0}, /* ideographic space */
3401 0x3001, 0x3020, 1}, /* ideographic punctuation */
3403 0x303f, 0x309f, 3}, /* Hiragana */
3405 0x30a0, 0x30ff, 3}, /* Katakana */
3407 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3409 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3411 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3413 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3415 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3417 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3419 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3421 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3423 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3427 const struct ucsword
*wptr
;
3429 uc
&= (CSET_MASK
| CHAR_MASK
);
3431 switch (uc
& CSET_MASK
) {
3433 uc
= unitab_xterm
[uc
& 0xFF];
3436 uc
= unitab_line
[uc
& 0xFF];
3439 uc
= unitab_scoacs
[uc
&0xFF];
3442 switch (uc
& CSET_MASK
) {
3444 uc
= unitab_font
[uc
& 0xFF];
3447 uc
= unitab_oemcp
[uc
& 0xFF];
3451 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3452 * fail as there's such a thing as a double width space. :-(
3454 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3458 return term
->wordness
[uc
];
3460 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3461 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3469 * Spread the selection outwards according to the selection mode.
3471 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3473 unsigned long *ldata
;
3475 int topy
= -count234(term
->scrollback
);
3477 ldata
= lineptr(p
.y
);
3479 switch (term
->selmode
) {
3482 * In this mode, every character is a separate unit, except
3483 * for runs of spaces at the end of a non-wrapping line.
3485 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3486 unsigned long *q
= ldata
+ term
->cols
;
3487 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3489 if (q
== ldata
+ term
->cols
)
3491 if (p
.x
>= q
- ldata
)
3492 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3497 * In this mode, the units are maximal runs of characters
3498 * whose `wordness' has the same value.
3500 wvalue
= wordtype(term
, ldata
[p
.x
]);
3503 if (p
.x
< term
->cols
-1) {
3504 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3509 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3510 unsigned long *ldata2
;
3511 ldata2
= lineptr(p
.y
+1);
3512 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3525 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3530 unsigned long *ldata2
;
3533 ldata2
= lineptr(p
.y
-1);
3534 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3535 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3547 * In this mode, every line is a unit.
3549 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3555 static void sel_spread(Terminal
*term
)
3557 if (term
->seltype
== LEXICOGRAPHIC
) {
3558 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3559 decpos(term
->selend
);
3560 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3561 incpos(term
->selend
);
3565 void term_do_paste(Terminal
*term
)
3570 get_clip(term
->frontend
, &data
, &len
);
3571 if (data
&& len
> 0) {
3574 term_seen_key_event(term
); /* pasted data counts */
3576 if (term
->paste_buffer
)
3577 sfree(term
->paste_buffer
);
3578 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3579 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3582 while (p
< data
+ len
) {
3583 while (p
< data
+ len
&&
3584 !(p
<= data
+ len
- sel_nl_sz
&&
3585 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3590 for (i
= 0; i
< p
- q
; i
++) {
3591 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3595 if (p
<= data
+ len
- sel_nl_sz
&&
3596 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3597 term
->paste_buffer
[term
->paste_len
++] = '\015';
3603 /* Assume a small paste will be OK in one go. */
3604 if (term
->paste_len
< 256) {
3606 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3607 if (term
->paste_buffer
)
3608 sfree(term
->paste_buffer
);
3609 term
->paste_buffer
= 0;
3610 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3613 get_clip(term
->frontend
, NULL
, NULL
);
3616 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3617 int shift
, int ctrl
, int alt
)
3620 unsigned long *ldata
;
3621 int raw_mouse
= (term
->xterm_mouse
&&
3622 !term
->cfg
->no_mouse_rep
&&
3623 !(term
->cfg
->mouse_override
&& shift
));
3624 int default_seltype
;
3628 if (a
== MA_DRAG
&& !raw_mouse
)
3629 term_scroll(term
, 0, -1);
3631 if (y
>= term
->rows
) {
3633 if (a
== MA_DRAG
&& !raw_mouse
)
3634 term_scroll(term
, 0, +1);
3643 if (x
>= term
->cols
)
3646 selpoint
.y
= y
+ term
->disptop
;
3648 ldata
= lineptr(selpoint
.y
);
3649 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3653 int encstate
= 0, r
, c
;
3660 encstate
= 0x20; /* left button down */
3671 case MBT_WHEEL_DOWN
:
3674 default: break; /* placate gcc warning about enum use */
3678 if (term
->xterm_mouse
== 1)
3684 term
->mouse_is_down
= 0;
3687 if (term
->mouse_is_down
== b
)
3689 term
->mouse_is_down
= b
;
3691 default: break; /* placate gcc warning about enum use */
3700 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3701 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3706 b
= translate_button(term
->frontend
, b
);
3709 * Set the selection type (rectangular or normal) at the start
3710 * of a selection attempt, from the state of Alt.
3712 if (!alt
^ !term
->cfg
->rect_select
)
3713 default_seltype
= RECTANGULAR
;
3715 default_seltype
= LEXICOGRAPHIC
;
3717 if (term
->selstate
== NO_SELECTION
) {
3718 term
->seltype
= default_seltype
;
3721 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3723 term
->selstate
= ABOUT_TO
;
3724 term
->seltype
= default_seltype
;
3725 term
->selanchor
= selpoint
;
3726 term
->selmode
= SM_CHAR
;
3727 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3729 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3730 term
->selstate
= DRAGGING
;
3731 term
->selstart
= term
->selanchor
= selpoint
;
3732 term
->selend
= term
->selstart
;
3733 incpos(term
->selend
);
3735 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3736 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3737 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3739 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3740 if (term
->seltype
== LEXICOGRAPHIC
) {
3742 * For normal selection, we extend by moving
3743 * whichever end of the current selection is closer
3746 if (posdiff(selpoint
, term
->selstart
) <
3747 posdiff(term
->selend
, term
->selstart
) / 2) {
3748 term
->selanchor
= term
->selend
;
3749 decpos(term
->selanchor
);
3751 term
->selanchor
= term
->selstart
;
3755 * For rectangular selection, we have a choice of
3756 * _four_ places to put selanchor and selpoint: the
3757 * four corners of the selection.
3759 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3760 term
->selanchor
.x
= term
->selend
.x
-1;
3762 term
->selanchor
.x
= term
->selstart
.x
;
3764 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3765 term
->selanchor
.y
= term
->selend
.y
;
3767 term
->selanchor
.y
= term
->selstart
.y
;
3769 term
->selstate
= DRAGGING
;
3771 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3772 term
->selanchor
= selpoint
;
3773 term
->selstate
= DRAGGING
;
3774 if (term
->seltype
== LEXICOGRAPHIC
) {
3776 * For normal selection, we set (selstart,selend) to
3777 * (selpoint,selanchor) in some order.
3779 if (poslt(selpoint
, term
->selanchor
)) {
3780 term
->selstart
= selpoint
;
3781 term
->selend
= term
->selanchor
;
3782 incpos(term
->selend
);
3784 term
->selstart
= term
->selanchor
;
3785 term
->selend
= selpoint
;
3786 incpos(term
->selend
);
3790 * For rectangular selection, we may need to
3791 * interchange x and y coordinates (if the user has
3792 * dragged in the -x and +y directions, or vice versa).
3794 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3795 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3796 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3797 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3800 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3801 if (term
->selstate
== DRAGGING
) {
3803 * We've completed a selection. We now transfer the
3804 * data to the clipboard.
3806 clipme(term
, term
->selstart
, term
->selend
,
3807 (term
->seltype
== RECTANGULAR
));
3808 term
->selstate
= SELECTED
;
3810 term
->selstate
= NO_SELECTION
;
3811 } else if (b
== MBT_PASTE
3813 #if MULTICLICK_ONLY_EVENT
3814 || a
== MA_2CLK
|| a
== MA_3CLK
3817 request_paste(term
->frontend
);
3823 void term_nopaste(Terminal
*term
)
3825 if (term
->paste_len
== 0)
3827 sfree(term
->paste_buffer
);
3828 term
->paste_buffer
= NULL
;
3829 term
->paste_len
= 0;
3832 int term_paste_pending(Terminal
*term
)
3834 return term
->paste_len
!= 0;
3837 void term_paste(Terminal
*term
)
3839 long now
, paste_diff
;
3841 if (term
->paste_len
== 0)
3844 /* Don't wait forever to paste */
3845 if (term
->paste_hold
) {
3846 now
= GETTICKCOUNT();
3847 paste_diff
= now
- term
->last_paste
;
3848 if (paste_diff
>= 0 && paste_diff
< 450)
3851 term
->paste_hold
= 0;
3853 while (term
->paste_pos
< term
->paste_len
) {
3855 while (n
+ term
->paste_pos
< term
->paste_len
) {
3856 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\015')
3860 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3861 term
->paste_pos
+= n
;
3863 if (term
->paste_pos
< term
->paste_len
) {
3864 term
->paste_hold
= 1;
3868 sfree(term
->paste_buffer
);
3869 term
->paste_buffer
= NULL
;
3870 term
->paste_len
= 0;
3873 static void deselect(Terminal
*term
)
3875 term
->selstate
= NO_SELECTION
;
3876 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3879 void term_deselect(Terminal
*term
)
3885 int term_ldisc(Terminal
*term
, int option
)
3887 if (option
== LD_ECHO
)
3888 return term
->term_echoing
;
3889 if (option
== LD_EDIT
)
3890 return term
->term_editing
;
3895 * from_backend(), to get data from the backend for the terminal.
3897 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3899 Terminal
*term
= (Terminal
*)vterm
;
3903 bufchain_add(&term
->inbuf
, data
, len
);
3906 * term_out() always completely empties inbuf. Therefore,
3907 * there's no reason at all to return anything other than zero
3908 * from this function, because there _can't_ be a question of
3909 * the remote side needing to wait until term_out() has cleared
3912 * This is a slightly suboptimal way to deal with SSH2 - in
3913 * principle, the window mechanism would allow us to continue
3914 * to accept data on forwarded ports and X connections even
3915 * while the terminal processing was going slowly - but we
3916 * can't do the 100% right thing without moving the terminal
3917 * processing into a separate thread, and that might hurt
3918 * portability. So we manage stdout buffering the old SSH1 way:
3919 * if the terminal processing goes slowly, the whole SSH
3920 * connection stops accepting data until it's ready.
3922 * In practice, I can't imagine this causing serious trouble.
3927 void term_provide_logctx(Terminal
*term
, void *logctx
)
3929 term
->logctx
= logctx
;