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
*);
73 * Resize a line to make it `cols' columns wide.
75 unsigned long *resizeline(unsigned long *line
, int cols
)
78 unsigned long lineattrs
;
80 if (line
[0] != (unsigned long)cols
) {
82 * This line is the wrong length, which probably means it
83 * hasn't been accessed since a resize. Resize it now.
86 lineattrs
= line
[oldlen
+ 1];
87 line
= srealloc(line
, TSIZE
* (2 + cols
));
89 for (i
= oldlen
; i
< cols
; i
++)
90 line
[i
+ 1] = ERASE_CHAR
;
91 line
[cols
+ 1] = lineattrs
& LATTR_MODE
;
98 * Retrieve a line of the screen or of the scrollback, according to
99 * whether the y coordinate is non-negative or negative
102 unsigned long *lineptr(Terminal
*term
, int y
, int lineno
)
104 unsigned long *line
, *newline
;
109 whichtree
= term
->screen
;
112 whichtree
= term
->scrollback
;
113 treeindex
= y
+ count234(term
->scrollback
);
115 line
= index234(whichtree
, treeindex
);
117 /* We assume that we don't screw up and retrieve something out of range. */
118 assert(line
!= NULL
);
120 newline
= resizeline(line
, term
->cols
);
121 if (newline
!= line
) {
122 delpos234(whichtree
, treeindex
);
123 addpos234(whichtree
, newline
, treeindex
);
130 #define lineptr(x) lineptr(term,x,__LINE__)
133 * Set up power-on settings for the terminal.
135 static void power_on(Terminal
*term
)
137 term
->curs
.x
= term
->curs
.y
= 0;
138 term
->alt_x
= term
->alt_y
= 0;
139 term
->savecurs
.x
= term
->savecurs
.y
= 0;
140 term
->alt_t
= term
->marg_t
= 0;
141 if (term
->rows
!= -1)
142 term
->alt_b
= term
->marg_b
= term
->rows
- 1;
144 term
->alt_b
= term
->marg_b
= 0;
145 if (term
->cols
!= -1) {
147 for (i
= 0; i
< term
->cols
; i
++)
148 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
150 term
->alt_om
= term
->dec_om
= cfg
.dec_om
;
151 term
->alt_ins
= term
->insert
= FALSE
;
152 term
->alt_wnext
= term
->wrapnext
= term
->save_wnext
= FALSE
;
153 term
->alt_wrap
= term
->wrap
= cfg
.wrap_mode
;
154 term
->alt_cset
= term
->cset
= term
->save_cset
= 0;
155 term
->alt_utf
= term
->utf
= term
->save_utf
= 0;
157 term
->alt_sco_acs
= term
->sco_acs
= term
->save_sco_acs
= 0;
158 term
->cset_attr
[0] = term
->cset_attr
[1] = term
->save_csattr
= ATTR_ASCII
;
160 term
->in_vbell
= FALSE
;
162 term
->big_cursor
= 0;
163 term
->save_attr
= term
->curr_attr
= ATTR_DEFAULT
;
164 term
->term_editing
= term
->term_echoing
= FALSE
;
165 term
->app_cursor_keys
= cfg
.app_cursor
;
166 term
->app_keypad_keys
= cfg
.app_keypad
;
167 term
->use_bce
= cfg
.bce
;
168 term
->blink_is_real
= cfg
.blinktext
;
169 term
->erase_char
= ERASE_CHAR
;
171 term_print_finish(term
);
174 for (i
= 0; i
< 256; i
++)
175 term
->wordness
[i
] = cfg
.wordness
[i
];
178 swap_screen(term
, 1, FALSE
, FALSE
);
179 erase_lots(term
, FALSE
, TRUE
, TRUE
);
180 swap_screen(term
, 0, FALSE
, FALSE
);
181 erase_lots(term
, FALSE
, TRUE
, TRUE
);
186 * Force a screen update.
188 void term_update(Terminal
*term
)
191 ctx
= get_ctx(term
->frontend
);
193 int need_sbar_update
= term
->seen_disp_event
;
194 if (term
->seen_disp_event
&& cfg
.scroll_on_disp
) {
195 term
->disptop
= 0; /* return to main screen */
196 term
->seen_disp_event
= 0;
197 need_sbar_update
= TRUE
;
199 if (need_sbar_update
)
201 do_paint(term
, ctx
, TRUE
);
202 sys_cursor(term
->frontend
, term
->curs
.x
, term
->curs
.y
- term
->disptop
);
208 * Called from front end when a keypress occurs, to trigger
209 * anything magical that needs to happen in that situation.
211 void term_seen_key_event(Terminal
*term
)
214 * On any keypress, clear the bell overload mechanism
215 * completely, on the grounds that large numbers of
216 * beeps coming from deliberate key action are likely
217 * to be intended (e.g. beeps from filename completion
218 * blocking repeatedly).
220 term
->beep_overloaded
= FALSE
;
221 while (term
->beephead
) {
222 struct beeptime
*tmp
= term
->beephead
;
223 term
->beephead
= tmp
->next
;
226 term
->beeptail
= NULL
;
230 * Reset the scrollback on keypress, if we're doing that.
232 if (cfg
.scroll_on_key
) {
233 term
->disptop
= 0; /* return to main screen */
234 term
->seen_disp_event
= 1;
239 * Same as power_on(), but an external function.
241 void term_pwron(Terminal
*term
)
244 if (term
->ldisc
) /* cause ldisc to notice changes */
245 ldisc_send(term
->ldisc
, NULL
, 0, 0);
253 * When the user reconfigures us, we need to check the forbidden-
254 * alternate-screen config option, disable raw mouse mode if the
255 * user has disabled mouse reporting, and abandon a print job if
256 * the user has disabled printing.
258 void term_reconfig(Terminal
*term
)
260 if (cfg
.no_alt_screen
)
261 swap_screen(term
, 0, FALSE
, FALSE
);
262 if (cfg
.no_mouse_rep
) {
263 term
->xterm_mouse
= 0;
264 set_raw_mouse_mode(term
->frontend
, 0);
266 if (cfg
.no_remote_charset
) {
267 term
->cset_attr
[0] = term
->cset_attr
[1] = ATTR_ASCII
;
268 term
->sco_acs
= term
->alt_sco_acs
= 0;
272 term_print_finish(term
);
277 * Clear the scrollback.
279 void term_clrsb(Terminal
*term
)
283 while ((line
= delpos234(term
->scrollback
, 0)) != NULL
) {
290 * Initialise the terminal.
292 Terminal
*term_init(void *frontend
)
297 * Allocate a new Terminal structure and initialise the fields
300 term
= smalloc(sizeof(Terminal
));
301 term
->frontend
= frontend
;
303 term
->compatibility_level
= TM_PUTTY
;
304 strcpy(term
->id_string
, "\033[?6c");
305 term
->last_blink
= term
->last_tblink
= 0;
306 term
->paste_buffer
= NULL
;
307 term
->last_paste
= 0;
308 bufchain_init(&term
->inbuf
);
309 bufchain_init(&term
->printer_buf
);
310 term
->printing
= term
->only_printing
= FALSE
;
311 term
->print_job
= NULL
;
312 term
->vt52_mode
= FALSE
;
313 term
->cr_lf_return
= FALSE
;
314 term
->seen_disp_event
= FALSE
;
315 term
->xterm_mouse
= term
->mouse_is_down
= FALSE
;
316 term
->reset_132
= FALSE
;
317 term
->blinker
= term
->tblinker
= 0;
319 term
->repeat_off
= FALSE
;
320 term
->termstate
= TOPLEVEL
;
321 term
->selstate
= NO_SELECTION
;
323 term
->screen
= term
->alt_screen
= term
->scrollback
= NULL
;
325 term
->disptext
= term
->dispcurs
= NULL
;
328 term
->rows
= term
->cols
= -1;
330 term
->beephead
= term
->beeptail
= NULL
;
332 term
->lastbeep
= FALSE
;
333 term
->beep_overloaded
= FALSE
;
334 term
->resize_fn
= NULL
;
335 term
->resize_ctx
= NULL
;
341 * Set up the terminal for a given size.
343 void term_size(Terminal
*term
, int newrows
, int newcols
, int newsavelines
)
346 unsigned long *newdisp
, *line
;
349 int save_alt_which
= term
->alt_which
;
351 if (newrows
== term
->rows
&& newcols
== term
->cols
&&
352 newsavelines
== term
->savelines
)
353 return; /* nothing to do */
356 swap_screen(term
, 0, FALSE
, FALSE
);
358 term
->alt_t
= term
->marg_t
= 0;
359 term
->alt_b
= term
->marg_b
= newrows
- 1;
361 if (term
->rows
== -1) {
362 term
->scrollback
= newtree234(NULL
);
363 term
->screen
= newtree234(NULL
);
368 * Resize the screen and scrollback. We only need to shift
369 * lines around within our data structures, because lineptr()
370 * will take care of resizing each individual line if
373 * - If the new screen and the old screen differ in length, we
374 * must shunt some lines in from the scrollback or out to
377 * - If doing that fails to provide us with enough material to
378 * fill the new screen (i.e. the number of rows needed in
379 * the new screen exceeds the total number in the previous
380 * screen+scrollback), we must invent some blank lines to
383 * - Then, if the new scrollback length is less than the
384 * amount of scrollback we actually have, we must throw some
387 sblen
= count234(term
->scrollback
);
388 /* Do this loop to expand the screen if newrows > rows */
389 for (i
= term
->rows
; i
< newrows
; i
++) {
391 line
= delpos234(term
->scrollback
, --sblen
);
393 line
= smalloc(TSIZE
* (newcols
+ 2));
395 for (j
= 0; j
<= newcols
; j
++)
396 line
[j
+ 1] = ERASE_CHAR
;
398 addpos234(term
->screen
, line
, 0);
400 /* Do this loop to shrink the screen if newrows < rows */
401 for (i
= newrows
; i
< term
->rows
; i
++) {
402 line
= delpos234(term
->screen
, 0);
403 addpos234(term
->scrollback
, line
, sblen
++);
405 assert(count234(term
->screen
) == newrows
);
406 while (sblen
> newsavelines
) {
407 line
= delpos234(term
->scrollback
, 0);
411 assert(count234(term
->scrollback
) <= newsavelines
);
414 newdisp
= smalloc(newrows
* (newcols
+ 1) * TSIZE
);
415 for (i
= 0; i
< newrows
* (newcols
+ 1); i
++)
416 newdisp
[i
] = ATTR_INVALID
;
417 sfree(term
->disptext
);
418 term
->disptext
= newdisp
;
419 term
->dispcurs
= NULL
;
421 newalt
= newtree234(NULL
);
422 for (i
= 0; i
< newrows
; i
++) {
423 line
= smalloc(TSIZE
* (newcols
+ 2));
425 for (j
= 0; j
<= newcols
; j
++)
426 line
[j
+ 1] = term
->erase_char
;
427 addpos234(newalt
, line
, i
);
429 if (term
->alt_screen
) {
430 while (NULL
!= (line
= delpos234(term
->alt_screen
, 0)))
432 freetree234(term
->alt_screen
);
434 term
->alt_screen
= newalt
;
436 term
->tabs
= srealloc(term
->tabs
, newcols
* sizeof(*term
->tabs
));
439 for (i
= (term
->cols
> 0 ? term
->cols
: 0); i
< newcols
; i
++)
440 term
->tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
444 term
->curs
.y
+= newrows
- term
->rows
;
445 if (term
->curs
.y
< 0)
447 if (term
->curs
.y
>= newrows
)
448 term
->curs
.y
= newrows
- 1;
449 if (term
->curs
.x
>= newcols
)
450 term
->curs
.x
= newcols
- 1;
451 term
->alt_x
= term
->alt_y
= 0;
452 term
->wrapnext
= term
->alt_wnext
= FALSE
;
454 term
->rows
= newrows
;
455 term
->cols
= newcols
;
456 term
->savelines
= newsavelines
;
459 swap_screen(term
, save_alt_which
, FALSE
, FALSE
);
464 term
->resize_fn(term
->resize_ctx
, term
->cols
, term
->rows
);
468 * Hand a function and context pointer to the terminal which it can
469 * use to notify a back end of resizes.
471 void term_provide_resize_fn(Terminal
*term
,
472 void (*resize_fn
)(void *, int, int),
475 term
->resize_fn
= resize_fn
;
476 term
->resize_ctx
= resize_ctx
;
477 if (term
->cols
> 0 && term
->rows
> 0)
478 resize_fn(resize_ctx
, term
->cols
, term
->rows
);
482 * Swap screens. If `reset' is TRUE and we have been asked to
483 * switch to the alternate screen, we must bring most of its
484 * configuration from the main screen and erase the contents of the
485 * alternate screen completely. (This is even true if we're already
486 * on it! Blame xterm.)
488 static void swap_screen(Terminal
*term
, int which
, int reset
, int keep_cur_pos
)
494 reset
= FALSE
; /* do no weird resetting if which==0 */
496 if (which
!= term
->alt_which
) {
497 term
->alt_which
= which
;
499 ttr
= term
->alt_screen
;
500 term
->alt_screen
= term
->screen
;
503 if (!reset
&& !keep_cur_pos
)
504 term
->curs
.x
= term
->alt_x
;
507 if (!reset
&& !keep_cur_pos
)
508 term
->curs
.y
= term
->alt_y
;
511 if (!reset
) term
->marg_t
= term
->alt_t
;
514 if (!reset
) term
->marg_b
= term
->alt_b
;
517 if (!reset
) term
->dec_om
= term
->alt_om
;
520 if (!reset
) term
->wrap
= term
->alt_wrap
;
523 if (!reset
) term
->wrapnext
= term
->alt_wnext
;
526 if (!reset
) term
->insert
= term
->alt_ins
;
529 if (!reset
) term
->cset
= term
->alt_cset
;
532 if (!reset
) term
->utf
= term
->alt_utf
;
535 if (!reset
) term
->sco_acs
= term
->alt_sco_acs
;
536 term
->alt_sco_acs
= t
;
539 if (reset
&& term
->screen
) {
541 * Yes, this _is_ supposed to honour background-colour-erase.
543 erase_lots(term
, FALSE
, TRUE
, TRUE
);
547 * This might not be possible if we're called during
555 * Update the scroll bar.
557 static void update_sbar(Terminal
*term
)
561 nscroll
= count234(term
->scrollback
);
563 set_sbar(term
->frontend
, nscroll
+ term
->rows
,
564 nscroll
+ term
->disptop
, term
->rows
);
568 * Check whether the region bounded by the two pointers intersects
569 * the scroll region, and de-select the on-screen selection if so.
571 static void check_selection(Terminal
*term
, pos from
, pos to
)
573 if (poslt(from
, term
->selend
) && poslt(term
->selstart
, to
))
578 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
579 * for backward.) `sb' is TRUE if the scrolling is permitted to
580 * affect the scrollback buffer.
582 * NB this function invalidates all pointers into lines of the
583 * screen data structures. In particular, you MUST call fix_cpos
584 * after calling scroll() and before doing anything else that
585 * uses the cpos shortcut pointer.
587 static void scroll(Terminal
*term
, int topline
, int botline
, int lines
, int sb
)
589 unsigned long *line
, *line2
;
592 if (topline
!= 0 || term
->alt_which
!= 0)
597 line
= delpos234(term
->screen
, botline
);
598 line
= resizeline(line
, term
->cols
);
599 for (i
= 0; i
< term
->cols
; i
++)
600 line
[i
+ 1] = term
->erase_char
;
601 line
[term
->cols
+ 1] = 0;
602 addpos234(term
->screen
, line
, topline
);
604 if (term
->selstart
.y
>= topline
&& term
->selstart
.y
<= botline
) {
606 if (term
->selstart
.y
> botline
) {
607 term
->selstart
.y
= botline
;
608 term
->selstart
.x
= 0;
611 if (term
->selend
.y
>= topline
&& term
->selend
.y
<= botline
) {
613 if (term
->selend
.y
> botline
) {
614 term
->selend
.y
= botline
;
623 line
= delpos234(term
->screen
, topline
);
624 if (sb
&& term
->savelines
> 0) {
625 int sblen
= count234(term
->scrollback
);
627 * We must add this line to the scrollback. We'll
628 * remove a line from the top of the scrollback to
629 * replace it, or allocate a new one if the
630 * scrollback isn't full.
632 if (sblen
== term
->savelines
) {
633 sblen
--, line2
= delpos234(term
->scrollback
, 0);
635 line2
= smalloc(TSIZE
* (term
->cols
+ 2));
636 line2
[0] = term
->cols
;
638 addpos234(term
->scrollback
, line
, sblen
);
642 * If the user is currently looking at part of the
643 * scrollback, and they haven't enabled any options
644 * that are going to reset the scrollback as a
645 * result of this movement, then the chances are
646 * they'd like to keep looking at the same line. So
647 * we move their viewpoint at the same rate as the
648 * scroll, at least until their viewpoint hits the
649 * top end of the scrollback buffer, at which point
650 * we don't have the choice any more.
652 * Thanks to Jan Holmen Holsten for the idea and
653 * initial implementation.
655 if (term
->disptop
> -term
->savelines
&& term
->disptop
< 0)
658 line
= resizeline(line
, term
->cols
);
659 for (i
= 0; i
< term
->cols
; i
++)
660 line
[i
+ 1] = term
->erase_char
;
661 line
[term
->cols
+ 1] = 0;
662 addpos234(term
->screen
, line
, botline
);
665 * If the selection endpoints move into the scrollback,
666 * we keep them moving until they hit the top. However,
667 * of course, if the line _hasn't_ moved into the
668 * scrollback then we don't do this, and cut them off
669 * at the top of the scroll region.
671 * This applies to selstart and selend (for an existing
672 * selection), and also selanchor (for one being
673 * selected as we speak).
675 seltop
= sb ?
-term
->savelines
: topline
;
677 if (term
->selstart
.y
>= seltop
&&
678 term
->selstart
.y
<= botline
) {
680 if (term
->selstart
.y
< seltop
) {
681 term
->selstart
.y
= seltop
;
682 term
->selstart
.x
= 0;
685 if (term
->selend
.y
>= seltop
&& term
->selend
.y
<= botline
) {
687 if (term
->selend
.y
< seltop
) {
688 term
->selend
.y
= seltop
;
692 if (term
->selanchor
.y
>= seltop
&& term
->selanchor
.y
<= botline
) {
694 if (term
->selanchor
.y
< seltop
) {
695 term
->selanchor
.y
= seltop
;
696 term
->selanchor
.x
= 0;
706 * Move the cursor to a given position, clipping at boundaries. We
707 * may or may not want to clip at the scroll margin: marg_clip is 0
708 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
709 * even _being_ outside the margins.
711 static void move(Terminal
*term
, int x
, int y
, int marg_clip
)
718 if ((term
->curs
.y
>= term
->marg_t
|| marg_clip
== 2) &&
721 if ((term
->curs
.y
<= term
->marg_b
|| marg_clip
== 2) &&
732 term
->wrapnext
= FALSE
;
736 * Save or restore the cursor and SGR mode.
738 static void save_cursor(Terminal
*term
, int save
)
741 term
->savecurs
= term
->curs
;
742 term
->save_attr
= term
->curr_attr
;
743 term
->save_cset
= term
->cset
;
744 term
->save_utf
= term
->utf
;
745 term
->save_wnext
= term
->wrapnext
;
746 term
->save_csattr
= term
->cset_attr
[term
->cset
];
747 term
->save_sco_acs
= term
->sco_acs
;
749 term
->curs
= term
->savecurs
;
750 /* Make sure the window hasn't shrunk since the save */
751 if (term
->curs
.x
>= term
->cols
)
752 term
->curs
.x
= term
->cols
- 1;
753 if (term
->curs
.y
>= term
->rows
)
754 term
->curs
.y
= term
->rows
- 1;
756 term
->curr_attr
= term
->save_attr
;
757 term
->cset
= term
->save_cset
;
758 term
->utf
= term
->save_utf
;
759 term
->wrapnext
= term
->save_wnext
;
761 * wrapnext might reset to False if the x position is no
762 * longer at the rightmost edge.
764 if (term
->wrapnext
&& term
->curs
.x
< term
->cols
-1)
765 term
->wrapnext
= FALSE
;
766 term
->cset_attr
[term
->cset
] = term
->save_csattr
;
767 term
->sco_acs
= term
->save_sco_acs
;
770 term
->erase_char
= (' ' | ATTR_ASCII
|
772 (ATTR_FGMASK
| ATTR_BGMASK
)));
777 * Erase a large portion of the screen: the whole screen, or the
778 * whole line, or parts thereof.
780 static void erase_lots(Terminal
*term
,
781 int line_only
, int from_begin
, int to_end
)
785 unsigned long *ldata
;
788 start
.y
= term
->curs
.y
;
790 end
.y
= term
->curs
.y
+ 1;
807 check_selection(term
, start
, end
);
809 /* Clear screen also forces a full window redraw, just in case. */
810 if (start
.y
== 0 && start
.x
== 0 && end
.y
== term
->rows
)
811 term_invalidate(term
);
813 ldata
= lineptr(start
.y
);
814 while (poslt(start
, end
)) {
815 if (start
.x
== term
->cols
&& !erase_lattr
)
816 ldata
[start
.x
] &= ~LATTR_WRAPPED
;
818 ldata
[start
.x
] = term
->erase_char
;
819 if (incpos(start
) && start
.y
< term
->rows
)
820 ldata
= lineptr(start
.y
);
825 * Insert or delete characters within the current line. n is +ve if
826 * insertion is desired, and -ve for deletion.
828 static void insch(Terminal
*term
, int n
)
830 int dir
= (n
< 0 ?
-1 : +1);
833 unsigned long *ldata
;
835 n
= (n
< 0 ?
-n
: n
);
836 if (n
> term
->cols
- term
->curs
.x
)
837 n
= term
->cols
- term
->curs
.x
;
838 m
= term
->cols
- term
->curs
.x
- n
;
839 cursplus
.y
= term
->curs
.y
;
840 cursplus
.x
= term
->curs
.x
+ n
;
841 check_selection(term
, term
->curs
, cursplus
);
842 ldata
= lineptr(term
->curs
.y
);
844 memmove(ldata
+ term
->curs
.x
, ldata
+ term
->curs
.x
+ n
, m
* TSIZE
);
846 ldata
[term
->curs
.x
+ m
++] = term
->erase_char
;
848 memmove(ldata
+ term
->curs
.x
+ n
, ldata
+ term
->curs
.x
, m
* TSIZE
);
850 ldata
[term
->curs
.x
+ n
] = term
->erase_char
;
855 * Toggle terminal mode `mode' to state `state'. (`query' indicates
856 * whether the mode is a DEC private one or a normal one.)
858 static void toggle_mode(Terminal
*term
, int mode
, int query
, int state
)
864 case 1: /* application cursor keys */
865 term
->app_cursor_keys
= state
;
867 case 2: /* VT52 mode */
868 term
->vt52_mode
= !state
;
869 if (term
->vt52_mode
) {
870 term
->blink_is_real
= FALSE
;
871 term
->vt52_bold
= FALSE
;
873 term
->blink_is_real
= cfg
.blinktext
;
876 case 3: /* 80/132 columns */
878 if (!cfg
.no_remote_resize
)
879 request_resize(term
->frontend
, state ?
132 : 80, term
->rows
);
880 term
->reset_132
= state
;
882 case 5: /* reverse video */
884 * Toggle reverse video. If we receive an OFF within the
885 * visual bell timeout period after an ON, we trigger an
886 * effective visual bell, so that ESC[?5hESC[?5l will
887 * always be an actually _visible_ visual bell.
889 ticks
= GETTICKCOUNT();
890 /* turn off a previous vbell to avoid inconsistencies */
891 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
892 term
->in_vbell
= FALSE
;
893 if (term
->rvideo
&& !state
&& /* we're turning it off... */
894 (ticks
- term
->rvbell_startpoint
) < VBELL_TIMEOUT
) {/*...soon*/
895 /* If there's no vbell timeout already, or this one lasts
896 * longer, replace vbell_timeout with ours. */
897 if (!term
->in_vbell
||
898 (term
->rvbell_startpoint
- term
->vbell_startpoint
<
900 term
->vbell_startpoint
= term
->rvbell_startpoint
;
901 term
->in_vbell
= TRUE
; /* may clear rvideo but set in_vbell */
902 } else if (!term
->rvideo
&& state
) {
903 /* This is an ON, so we notice the time and save it. */
904 term
->rvbell_startpoint
= ticks
;
906 term
->rvideo
= state
;
907 term
->seen_disp_event
= TRUE
;
911 case 6: /* DEC origin mode */
912 term
->dec_om
= state
;
914 case 7: /* auto wrap */
917 case 8: /* auto key repeat */
918 term
->repeat_off
= !state
;
920 case 10: /* set local edit mode */
921 term
->term_editing
= state
;
922 if (term
->ldisc
) /* cause ldisc to notice changes */
923 ldisc_send(term
->ldisc
, NULL
, 0, 0);
925 case 25: /* enable/disable cursor */
926 compatibility2(OTHER
, VT220
);
927 term
->cursor_on
= state
;
928 term
->seen_disp_event
= TRUE
;
930 case 47: /* alternate screen */
931 compatibility(OTHER
);
933 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, FALSE
, FALSE
);
936 case 1000: /* xterm mouse 1 */
937 term
->xterm_mouse
= state ?
1 : 0;
938 set_raw_mouse_mode(term
->frontend
, state
);
940 case 1002: /* xterm mouse 2 */
941 term
->xterm_mouse
= state ?
2 : 0;
942 set_raw_mouse_mode(term
->frontend
, state
);
944 case 1047: /* alternate screen */
945 compatibility(OTHER
);
947 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, TRUE
);
950 case 1048: /* save/restore cursor */
951 save_cursor(term
, state
);
952 if (!state
) term
->seen_disp_event
= TRUE
;
954 case 1049: /* cursor & alternate screen */
956 save_cursor(term
, state
);
957 if (!state
) term
->seen_disp_event
= TRUE
;
958 compatibility(OTHER
);
960 swap_screen(term
, cfg
.no_alt_screen ?
0 : state
, TRUE
, FALSE
);
962 save_cursor(term
, state
);
967 case 4: /* set insert mode */
968 compatibility(VT102
);
969 term
->insert
= state
;
971 case 12: /* set echo mode */
972 term
->term_echoing
= !state
;
973 if (term
->ldisc
) /* cause ldisc to notice changes */
974 ldisc_send(term
->ldisc
, NULL
, 0, 0);
976 case 20: /* Return sends ... */
977 term
->cr_lf_return
= state
;
979 case 34: /* Make cursor BIG */
980 compatibility2(OTHER
, VT220
);
981 term
->big_cursor
= !state
;
986 * Process an OSC sequence: set window title or icon name.
988 static void do_osc(Terminal
*term
)
991 while (term
->osc_strlen
--)
992 term
->wordness
[(unsigned char)
993 term
->osc_string
[term
->osc_strlen
]] = term
->esc_args
[0];
995 term
->osc_string
[term
->osc_strlen
] = '\0';
996 switch (term
->esc_args
[0]) {
999 if (!cfg
.no_remote_wintitle
)
1000 set_icon(term
->frontend
, term
->osc_string
);
1001 if (term
->esc_args
[0] == 1)
1003 /* fall through: parameter 0 means set both */
1006 if (!cfg
.no_remote_wintitle
)
1007 set_title(term
->frontend
, term
->osc_string
);
1014 * ANSI printing routines.
1016 static void term_print_setup(Terminal
*term
)
1018 bufchain_clear(&term
->printer_buf
);
1019 term
->print_job
= printer_start_job(cfg
.printer
);
1021 static void term_print_flush(Terminal
*term
)
1026 while ((size
= bufchain_size(&term
->printer_buf
)) > 5) {
1027 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1030 printer_job_data(term
->print_job
, data
, len
);
1031 bufchain_consume(&term
->printer_buf
, len
);
1034 static void term_print_finish(Terminal
*term
)
1040 if (!term
->printing
&& !term
->only_printing
)
1041 return; /* we need do nothing */
1043 term_print_flush(term
);
1044 while ((size
= bufchain_size(&term
->printer_buf
)) > 0) {
1045 bufchain_prefix(&term
->printer_buf
, &data
, &len
);
1047 if (c
== '\033' || c
== '\233') {
1048 bufchain_consume(&term
->printer_buf
, size
);
1051 printer_job_data(term
->print_job
, &c
, 1);
1052 bufchain_consume(&term
->printer_buf
, 1);
1055 printer_finish_job(term
->print_job
);
1056 term
->print_job
= NULL
;
1057 term
->printing
= term
->only_printing
= FALSE
;
1061 * Remove everything currently in `inbuf' and stick it up on the
1062 * in-memory display. There's a big state machine in here to
1063 * process escape sequences...
1065 void term_out(Terminal
*term
)
1068 unsigned char localbuf
[256], *chars
;
1073 chars
= NULL
; /* placate compiler warnings */
1074 while (nchars
> 0 || bufchain_size(&term
->inbuf
) > 0) {
1078 bufchain_prefix(&term
->inbuf
, &ret
, &nchars
);
1079 if (nchars
> sizeof(localbuf
))
1080 nchars
= sizeof(localbuf
);
1081 memcpy(localbuf
, ret
, nchars
);
1082 bufchain_consume(&term
->inbuf
, nchars
);
1084 assert(chars
!= NULL
);
1090 * Optionally log the session traffic to a file. Useful for
1091 * debugging and possibly also useful for actual logging.
1093 if (cfg
.logtype
== LGTYP_DEBUG
&& term
->logctx
)
1094 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_DEBUG
);
1100 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
1101 * be able to display 8-bit characters, but I'll let that go 'cause
1106 * If we're printing, add the character to the printer
1109 if (term
->printing
) {
1110 bufchain_add(&term
->printer_buf
, &c
, 1);
1113 * If we're in print-only mode, we use a much simpler
1114 * state machine designed only to recognise the ESC[4i
1115 * termination sequence.
1117 if (term
->only_printing
) {
1119 term
->print_state
= 1;
1120 else if (c
== (unsigned char)'\233')
1121 term
->print_state
= 2;
1122 else if (c
== '[' && term
->print_state
== 1)
1123 term
->print_state
= 2;
1124 else if (c
== '4' && term
->print_state
== 2)
1125 term
->print_state
= 3;
1126 else if (c
== 'i' && term
->print_state
== 3)
1127 term
->print_state
= 4;
1129 term
->print_state
= 0;
1130 if (term
->print_state
== 4) {
1131 term_print_finish(term
);
1137 /* First see about all those translations. */
1138 if (term
->termstate
== TOPLEVEL
) {
1140 switch (term
->utf_state
) {
1143 /* UTF-8 must be stateless so we ignore iso2022. */
1144 if (unitab_ctrl
[c
] != 0xFF)
1146 else c
= ((unsigned char)c
) | ATTR_ASCII
;
1148 } else if ((c
& 0xe0) == 0xc0) {
1149 term
->utf_size
= term
->utf_state
= 1;
1150 term
->utf_char
= (c
& 0x1f);
1151 } else if ((c
& 0xf0) == 0xe0) {
1152 term
->utf_size
= term
->utf_state
= 2;
1153 term
->utf_char
= (c
& 0x0f);
1154 } else if ((c
& 0xf8) == 0xf0) {
1155 term
->utf_size
= term
->utf_state
= 3;
1156 term
->utf_char
= (c
& 0x07);
1157 } else if ((c
& 0xfc) == 0xf8) {
1158 term
->utf_size
= term
->utf_state
= 4;
1159 term
->utf_char
= (c
& 0x03);
1160 } else if ((c
& 0xfe) == 0xfc) {
1161 term
->utf_size
= term
->utf_state
= 5;
1162 term
->utf_char
= (c
& 0x01);
1173 if ((c
& 0xC0) != 0x80) {
1176 term
->utf_state
= 0;
1179 term
->utf_char
= (term
->utf_char
<< 6) | (c
& 0x3f);
1180 if (--term
->utf_state
)
1185 /* Is somebody trying to be evil! */
1187 (c
< 0x800 && term
->utf_size
>= 2) ||
1188 (c
< 0x10000 && term
->utf_size
>= 3) ||
1189 (c
< 0x200000 && term
->utf_size
>= 4) ||
1190 (c
< 0x4000000 && term
->utf_size
>= 5))
1193 /* Unicode line separator and paragraph separator are CR-LF */
1194 if (c
== 0x2028 || c
== 0x2029)
1197 /* High controls are probably a Baaad idea too. */
1201 /* The UTF-16 surrogates are not nice either. */
1202 /* The standard give the option of decoding these:
1203 * I don't want to! */
1204 if (c
>= 0xD800 && c
< 0xE000)
1207 /* ISO 10646 characters now limited to UTF-16 range. */
1211 /* This is currently a TagPhobic application.. */
1212 if (c
>= 0xE0000 && c
<= 0xE007F)
1215 /* U+FEFF is best seen as a null. */
1218 /* But U+FFFE is an error. */
1219 if (c
== 0xFFFE || c
== 0xFFFF)
1222 /* Oops this is a 16bit implementation */
1227 /* Are we in the nasty ACS mode? Note: no sco in utf mode. */
1228 else if(term
->sco_acs
&&
1229 (c
!='\033' && c
!='\n' && c
!='\r' && c
!='\b'))
1231 if (term
->sco_acs
== 2) c
^= 0x80;
1234 switch (term
->cset_attr
[term
->cset
]) {
1236 * Linedraw characters are different from 'ESC ( B'
1237 * only for a small range. For ones outside that
1238 * range, make sure we use the same font as well as
1239 * the same encoding.
1242 if (unitab_ctrl
[c
] != 0xFF)
1245 c
= ((unsigned char) c
) | ATTR_LINEDRW
;
1249 /* If UK-ASCII, make the '#' a LineDraw Pound */
1251 c
= '}' | ATTR_LINEDRW
;
1254 /*FALLTHROUGH*/ case ATTR_ASCII
:
1255 if (unitab_ctrl
[c
] != 0xFF)
1258 c
= ((unsigned char) c
) | ATTR_ASCII
;
1261 if (c
>=' ') c
= ((unsigned char)c
) | ATTR_SCOACS
;
1267 /* How about C1 controls ? */
1268 if ((c
& -32) == 0x80 && term
->termstate
< DO_CTRLS
&&
1269 !term
->vt52_mode
&& has_compat(VT220
)) {
1270 term
->termstate
= SEEN_ESC
;
1271 term
->esc_query
= FALSE
;
1272 c
= '@' + (c
& 0x1F);
1275 /* Or the GL control. */
1276 if (c
== '\177' && term
->termstate
< DO_CTRLS
&& has_compat(OTHER
)) {
1277 if (term
->curs
.x
&& !term
->wrapnext
)
1279 term
->wrapnext
= FALSE
;
1281 if (!cfg
.no_dbackspace
) /* destructive bksp might be disabled */
1282 *term
->cpos
= (' ' | term
->curr_attr
| ATTR_ASCII
);
1284 /* Or normal C0 controls. */
1285 if ((c
& -32) == 0 && term
->termstate
< DO_CTRLS
) {
1287 case '\005': /* terminal type query */
1288 /* Strictly speaking this is VT100 but a VT100 defaults to
1289 * no response. Other terminals respond at their option.
1291 * Don't put a CR in the default string as this tends to
1292 * upset some weird software.
1294 * An xterm returns "xterm" (5 characters)
1296 compatibility(ANSIMIN
);
1298 char abuf
[256], *s
, *d
;
1300 for (s
= cfg
.answerback
, d
= abuf
; *s
; s
++) {
1302 if (*s
>= 'a' && *s
<= 'z')
1303 *d
++ = (*s
- ('a' - 1));
1304 else if ((*s
>= '@' && *s
<= '_') ||
1305 *s
== '?' || (*s
& 0x80))
1310 } else if (*s
== '^') {
1315 lpage_send(term
->ldisc
, DEFAULT_CODEPAGE
,
1321 struct beeptime
*newbeep
;
1322 unsigned long ticks
;
1324 ticks
= GETTICKCOUNT();
1326 if (!term
->beep_overloaded
) {
1327 newbeep
= smalloc(sizeof(struct beeptime
));
1328 newbeep
->ticks
= ticks
;
1329 newbeep
->next
= NULL
;
1330 if (!term
->beephead
)
1331 term
->beephead
= newbeep
;
1333 term
->beeptail
->next
= newbeep
;
1334 term
->beeptail
= newbeep
;
1339 * Throw out any beeps that happened more than
1342 while (term
->beephead
&&
1343 term
->beephead
->ticks
< ticks
- cfg
.bellovl_t
) {
1344 struct beeptime
*tmp
= term
->beephead
;
1345 term
->beephead
= tmp
->next
;
1347 if (!term
->beephead
)
1348 term
->beeptail
= NULL
;
1352 if (cfg
.bellovl
&& term
->beep_overloaded
&&
1353 ticks
- term
->lastbeep
>= (unsigned)cfg
.bellovl_s
) {
1355 * If we're currently overloaded and the
1356 * last beep was more than s seconds ago,
1357 * leave overload mode.
1359 term
->beep_overloaded
= FALSE
;
1360 } else if (cfg
.bellovl
&& !term
->beep_overloaded
&&
1361 term
->nbeeps
>= cfg
.bellovl_n
) {
1363 * Now, if we have n or more beeps
1364 * remaining in the queue, go into overload
1367 term
->beep_overloaded
= TRUE
;
1369 term
->lastbeep
= ticks
;
1372 * Perform an actual beep if we're not overloaded.
1374 if (!cfg
.bellovl
|| !term
->beep_overloaded
) {
1375 if (cfg
.beep
== BELL_VISUAL
) {
1376 term
->in_vbell
= TRUE
;
1377 term
->vbell_startpoint
= ticks
;
1380 beep(term
->frontend
, cfg
.beep
);
1386 if (term
->curs
.x
== 0 &&
1387 (term
->curs
.y
== 0 || term
->wrap
== 0))
1389 else if (term
->curs
.x
== 0 && term
->curs
.y
> 0)
1390 term
->curs
.x
= term
->cols
- 1, term
->curs
.y
--;
1391 else if (term
->wrapnext
)
1392 term
->wrapnext
= FALSE
;
1396 term
->seen_disp_event
= TRUE
;
1399 compatibility(VT100
);
1403 compatibility(VT100
);
1407 if (term
->vt52_mode
)
1408 term
->termstate
= VT52_ESC
;
1410 compatibility(ANSIMIN
);
1411 term
->termstate
= SEEN_ESC
;
1412 term
->esc_query
= FALSE
;
1417 term
->wrapnext
= FALSE
;
1419 term
->seen_disp_event
= TRUE
;
1420 term
->paste_hold
= 0;
1422 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1425 if (has_compat(SCOANSI
)) {
1426 move(term
, 0, 0, 0);
1427 erase_lots(term
, FALSE
, FALSE
, TRUE
);
1429 term
->wrapnext
= FALSE
;
1430 term
->seen_disp_event
= 1;
1434 compatibility(VT100
);
1436 if (term
->curs
.y
== term
->marg_b
)
1437 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1438 else if (term
->curs
.y
< term
->rows
- 1)
1443 term
->wrapnext
= FALSE
;
1444 term
->seen_disp_event
= 1;
1445 term
->paste_hold
= 0;
1447 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1451 pos old_curs
= term
->curs
;
1452 unsigned long *ldata
= lineptr(term
->curs
.y
);
1456 } while (term
->curs
.x
< term
->cols
- 1 &&
1457 !term
->tabs
[term
->curs
.x
]);
1459 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
) {
1460 if (term
->curs
.x
>= term
->cols
/ 2)
1461 term
->curs
.x
= term
->cols
/ 2 - 1;
1463 if (term
->curs
.x
>= term
->cols
)
1464 term
->curs
.x
= term
->cols
- 1;
1468 check_selection(term
, old_curs
, term
->curs
);
1470 term
->seen_disp_event
= TRUE
;
1474 switch (term
->termstate
) {
1476 /* Only graphic characters get this far;
1477 * ctrls are stripped above */
1478 if (term
->wrapnext
&& term
->wrap
) {
1479 term
->cpos
[1] |= LATTR_WRAPPED
;
1480 if (term
->curs
.y
== term
->marg_b
)
1481 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1482 else if (term
->curs
.y
< term
->rows
- 1)
1486 term
->wrapnext
= FALSE
;
1490 if (term
->selstate
!= NO_SELECTION
) {
1491 pos cursplus
= term
->curs
;
1493 check_selection(term
, term
->curs
, cursplus
);
1495 if (((c
& CSET_MASK
) == ATTR_ASCII
|| (c
& CSET_MASK
) == 0) &&
1497 logtraffic(term
->logctx
, (unsigned char) c
, LGTYP_ASCII
);
1499 extern int wcwidth(wchar_t ucs
);
1504 width
= wcwidth((wchar_t) c
);
1507 *term
->cpos
++ = c
| term
->curr_attr
;
1508 if (++term
->curs
.x
== term
->cols
) {
1509 *term
->cpos
|= LATTR_WRAPPED
;
1510 if (term
->curs
.y
== term
->marg_b
)
1511 scroll(term
, term
->marg_t
, term
->marg_b
,
1513 else if (term
->curs
.y
< term
->rows
- 1)
1518 *term
->cpos
++ = UCSWIDE
| term
->curr_attr
;
1521 *term
->cpos
++ = c
| term
->curr_attr
;
1528 if (term
->curs
.x
== term
->cols
) {
1531 term
->wrapnext
= TRUE
;
1532 if (term
->wrap
&& term
->vt52_mode
) {
1533 term
->cpos
[1] |= LATTR_WRAPPED
;
1534 if (term
->curs
.y
== term
->marg_b
)
1535 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1536 else if (term
->curs
.y
< term
->rows
- 1)
1540 term
->wrapnext
= FALSE
;
1543 term
->seen_disp_event
= 1;
1548 * This state is virtually identical to SEEN_ESC, with the
1549 * exception that we have an OSC sequence in the pipeline,
1550 * and _if_ we see a backslash, we process it.
1554 term
->termstate
= TOPLEVEL
;
1557 /* else fall through */
1559 if (c
>= ' ' && c
<= '/') {
1560 if (term
->esc_query
)
1561 term
->esc_query
= -1;
1563 term
->esc_query
= c
;
1566 term
->termstate
= TOPLEVEL
;
1567 switch (ANSI(c
, term
->esc_query
)) {
1568 case '[': /* enter CSI mode */
1569 term
->termstate
= SEEN_CSI
;
1570 term
->esc_nargs
= 1;
1571 term
->esc_args
[0] = ARG_DEFAULT
;
1572 term
->esc_query
= FALSE
;
1574 case ']': /* xterm escape sequences */
1575 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1576 compatibility(OTHER
);
1577 term
->termstate
= SEEN_OSC
;
1578 term
->esc_args
[0] = 0;
1580 case '7': /* save cursor */
1581 compatibility(VT100
);
1582 save_cursor(term
, TRUE
);
1584 case '8': /* restore cursor */
1585 compatibility(VT100
);
1586 save_cursor(term
, FALSE
);
1587 term
->seen_disp_event
= TRUE
;
1590 compatibility(VT100
);
1591 term
->app_keypad_keys
= TRUE
;
1594 compatibility(VT100
);
1595 term
->app_keypad_keys
= FALSE
;
1597 case 'D': /* exactly equivalent to LF */
1598 compatibility(VT100
);
1599 if (term
->curs
.y
== term
->marg_b
)
1600 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1601 else if (term
->curs
.y
< term
->rows
- 1)
1604 term
->wrapnext
= FALSE
;
1605 term
->seen_disp_event
= TRUE
;
1607 case 'E': /* exactly equivalent to CR-LF */
1608 compatibility(VT100
);
1610 if (term
->curs
.y
== term
->marg_b
)
1611 scroll(term
, term
->marg_t
, term
->marg_b
, 1, TRUE
);
1612 else if (term
->curs
.y
< term
->rows
- 1)
1615 term
->wrapnext
= FALSE
;
1616 term
->seen_disp_event
= TRUE
;
1618 case 'M': /* reverse index - backwards LF */
1619 compatibility(VT100
);
1620 if (term
->curs
.y
== term
->marg_t
)
1621 scroll(term
, term
->marg_t
, term
->marg_b
, -1, TRUE
);
1622 else if (term
->curs
.y
> 0)
1625 term
->wrapnext
= FALSE
;
1626 term
->seen_disp_event
= TRUE
;
1628 case 'Z': /* terminal type query */
1629 compatibility(VT100
);
1631 ldisc_send(term
->ldisc
, term
->id_string
,
1632 strlen(term
->id_string
), 0);
1634 case 'c': /* restore power-on settings */
1635 compatibility(VT100
);
1637 if (term
->ldisc
) /* cause ldisc to notice changes */
1638 ldisc_send(term
->ldisc
, NULL
, 0, 0);
1639 if (term
->reset_132
) {
1640 if (!cfg
.no_remote_resize
)
1641 request_resize(term
->frontend
, 80, term
->rows
);
1642 term
->reset_132
= 0;
1646 term
->seen_disp_event
= TRUE
;
1648 case 'H': /* set a tab */
1649 compatibility(VT100
);
1650 term
->tabs
[term
->curs
.x
] = TRUE
;
1653 case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
1654 compatibility(VT100
);
1656 unsigned long *ldata
;
1660 for (i
= 0; i
< term
->rows
; i
++) {
1662 for (j
= 0; j
< term
->cols
; j
++)
1663 ldata
[j
] = ATTR_DEFAULT
| 'E';
1664 ldata
[term
->cols
] = 0;
1667 term
->seen_disp_event
= TRUE
;
1668 scrtop
.x
= scrtop
.y
= 0;
1670 scrbot
.y
= term
->rows
;
1671 check_selection(term
, scrtop
, scrbot
);
1675 case ANSI('3', '#'):
1676 case ANSI('4', '#'):
1677 case ANSI('5', '#'):
1678 case ANSI('6', '#'):
1679 compatibility(VT100
);
1681 unsigned long nlattr
;
1682 unsigned long *ldata
;
1683 switch (ANSI(c
, term
->esc_query
)) {
1684 case ANSI('3', '#'):
1687 case ANSI('4', '#'):
1690 case ANSI('5', '#'):
1691 nlattr
= LATTR_NORM
;
1693 default: /* spiritually case ANSI('6', '#'): */
1694 nlattr
= LATTR_WIDE
;
1697 ldata
= lineptr(term
->curs
.y
);
1698 ldata
[term
->cols
] &= ~LATTR_MODE
;
1699 ldata
[term
->cols
] |= nlattr
;
1703 case ANSI('A', '('):
1704 compatibility(VT100
);
1705 if (!cfg
.no_remote_charset
)
1706 term
->cset_attr
[0] = ATTR_GBCHR
;
1708 case ANSI('B', '('):
1709 compatibility(VT100
);
1710 if (!cfg
.no_remote_charset
)
1711 term
->cset_attr
[0] = ATTR_ASCII
;
1713 case ANSI('0', '('):
1714 compatibility(VT100
);
1715 if (!cfg
.no_remote_charset
)
1716 term
->cset_attr
[0] = ATTR_LINEDRW
;
1718 case ANSI('U', '('):
1719 compatibility(OTHER
);
1720 if (!cfg
.no_remote_charset
)
1721 term
->cset_attr
[0] = ATTR_SCOACS
;
1724 case ANSI('A', ')'):
1725 compatibility(VT100
);
1726 if (!cfg
.no_remote_charset
)
1727 term
->cset_attr
[1] = ATTR_GBCHR
;
1729 case ANSI('B', ')'):
1730 compatibility(VT100
);
1731 if (!cfg
.no_remote_charset
)
1732 term
->cset_attr
[1] = ATTR_ASCII
;
1734 case ANSI('0', ')'):
1735 compatibility(VT100
);
1736 if (!cfg
.no_remote_charset
)
1737 term
->cset_attr
[1] = ATTR_LINEDRW
;
1739 case ANSI('U', ')'):
1740 compatibility(OTHER
);
1741 if (!cfg
.no_remote_charset
)
1742 term
->cset_attr
[1] = ATTR_SCOACS
;
1745 case ANSI('8', '%'): /* Old Linux code */
1746 case ANSI('G', '%'):
1747 compatibility(OTHER
);
1748 if (!cfg
.no_remote_charset
)
1751 case ANSI('@', '%'):
1752 compatibility(OTHER
);
1753 if (!cfg
.no_remote_charset
)
1759 term
->termstate
= TOPLEVEL
; /* default */
1761 if (term
->esc_nargs
<= ARGS_MAX
) {
1762 if (term
->esc_args
[term
->esc_nargs
- 1] == ARG_DEFAULT
)
1763 term
->esc_args
[term
->esc_nargs
- 1] = 0;
1764 term
->esc_args
[term
->esc_nargs
- 1] =
1765 10 * term
->esc_args
[term
->esc_nargs
- 1] + c
- '0';
1767 term
->termstate
= SEEN_CSI
;
1768 } else if (c
== ';') {
1769 if (++term
->esc_nargs
<= ARGS_MAX
)
1770 term
->esc_args
[term
->esc_nargs
- 1] = ARG_DEFAULT
;
1771 term
->termstate
= SEEN_CSI
;
1772 } else if (c
< '@') {
1773 if (term
->esc_query
)
1774 term
->esc_query
= -1;
1776 term
->esc_query
= TRUE
;
1778 term
->esc_query
= c
;
1779 term
->termstate
= SEEN_CSI
;
1781 switch (ANSI(c
, term
->esc_query
)) {
1782 case 'A': /* move up N lines */
1783 move(term
, term
->curs
.x
,
1784 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1785 term
->seen_disp_event
= TRUE
;
1787 case 'e': /* move down N lines */
1788 compatibility(ANSI
);
1791 move(term
, term
->curs
.x
,
1792 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1793 term
->seen_disp_event
= TRUE
;
1795 case ANSI('c', '>'): /* report xterm version */
1796 compatibility(OTHER
);
1797 /* this reports xterm version 136 so that VIM can
1798 use the drag messages from the mouse reporting */
1800 ldisc_send(term
->ldisc
, "\033[>0;136;0c", 11, 0);
1802 case 'a': /* move right N cols */
1803 compatibility(ANSI
);
1806 move(term
, term
->curs
.x
+ def(term
->esc_args
[0], 1),
1808 term
->seen_disp_event
= TRUE
;
1810 case 'D': /* move left N cols */
1811 move(term
, term
->curs
.x
- def(term
->esc_args
[0], 1),
1813 term
->seen_disp_event
= TRUE
;
1815 case 'E': /* move down N lines and CR */
1816 compatibility(ANSI
);
1818 term
->curs
.y
+ def(term
->esc_args
[0], 1), 1);
1819 term
->seen_disp_event
= TRUE
;
1821 case 'F': /* move up N lines and CR */
1822 compatibility(ANSI
);
1824 term
->curs
.y
- def(term
->esc_args
[0], 1), 1);
1825 term
->seen_disp_event
= TRUE
;
1828 case '`': /* set horizontal posn */
1829 compatibility(ANSI
);
1830 move(term
, def(term
->esc_args
[0], 1) - 1,
1832 term
->seen_disp_event
= TRUE
;
1834 case 'd': /* set vertical posn */
1835 compatibility(ANSI
);
1836 move(term
, term
->curs
.x
,
1837 ((term
->dec_om ? term
->marg_t
: 0) +
1838 def(term
->esc_args
[0], 1) - 1),
1839 (term
->dec_om ?
2 : 0));
1840 term
->seen_disp_event
= TRUE
;
1843 case 'f': /* set horz and vert posns at once */
1844 if (term
->esc_nargs
< 2)
1845 term
->esc_args
[1] = ARG_DEFAULT
;
1846 move(term
, def(term
->esc_args
[1], 1) - 1,
1847 ((term
->dec_om ? term
->marg_t
: 0) +
1848 def(term
->esc_args
[0], 1) - 1),
1849 (term
->dec_om ?
2 : 0));
1850 term
->seen_disp_event
= TRUE
;
1852 case 'J': /* erase screen or parts of it */
1854 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1857 erase_lots(term
, FALSE
, !!(i
& 2), !!(i
& 1));
1860 term
->seen_disp_event
= TRUE
;
1862 case 'K': /* erase line or parts of it */
1864 unsigned int i
= def(term
->esc_args
[0], 0) + 1;
1867 erase_lots(term
, TRUE
, !!(i
& 2), !!(i
& 1));
1869 term
->seen_disp_event
= TRUE
;
1871 case 'L': /* insert lines */
1872 compatibility(VT102
);
1873 if (term
->curs
.y
<= term
->marg_b
)
1874 scroll(term
, term
->curs
.y
, term
->marg_b
,
1875 -def(term
->esc_args
[0], 1), FALSE
);
1877 term
->seen_disp_event
= TRUE
;
1879 case 'M': /* delete lines */
1880 compatibility(VT102
);
1881 if (term
->curs
.y
<= term
->marg_b
)
1882 scroll(term
, term
->curs
.y
, term
->marg_b
,
1883 def(term
->esc_args
[0], 1),
1886 term
->seen_disp_event
= TRUE
;
1888 case '@': /* insert chars */
1889 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1890 compatibility(VT102
);
1891 insch(term
, def(term
->esc_args
[0], 1));
1892 term
->seen_disp_event
= TRUE
;
1894 case 'P': /* delete chars */
1895 compatibility(VT102
);
1896 insch(term
, -def(term
->esc_args
[0], 1));
1897 term
->seen_disp_event
= TRUE
;
1899 case 'c': /* terminal type query */
1900 compatibility(VT100
);
1901 /* This is the response for a VT102 */
1903 ldisc_send(term
->ldisc
, term
->id_string
,
1904 strlen(term
->id_string
), 0);
1906 case 'n': /* cursor position query */
1908 if (term
->esc_args
[0] == 6) {
1910 sprintf(buf
, "\033[%d;%dR", term
->curs
.y
+ 1,
1912 ldisc_send(term
->ldisc
, buf
, strlen(buf
), 0);
1913 } else if (term
->esc_args
[0] == 5) {
1914 ldisc_send(term
->ldisc
, "\033[0n", 4, 0);
1918 case 'h': /* toggle modes to high */
1920 compatibility(VT100
);
1923 for (i
= 0; i
< term
->esc_nargs
; i
++)
1924 toggle_mode(term
, term
->esc_args
[i
],
1925 term
->esc_query
, TRUE
);
1930 compatibility(VT100
);
1932 if (term
->esc_nargs
!= 1) break;
1933 if (term
->esc_args
[0] == 5 && *cfg
.printer
) {
1934 term
->printing
= TRUE
;
1935 term
->only_printing
= !term
->esc_query
;
1936 term
->print_state
= 0;
1937 term_print_setup(term
);
1938 } else if (term
->esc_args
[0] == 4 &&
1940 term_print_finish(term
);
1944 case 'l': /* toggle modes to low */
1946 compatibility(VT100
);
1949 for (i
= 0; i
< term
->esc_nargs
; i
++)
1950 toggle_mode(term
, term
->esc_args
[i
],
1951 term
->esc_query
, FALSE
);
1954 case 'g': /* clear tabs */
1955 compatibility(VT100
);
1956 if (term
->esc_nargs
== 1) {
1957 if (term
->esc_args
[0] == 0) {
1958 term
->tabs
[term
->curs
.x
] = FALSE
;
1959 } else if (term
->esc_args
[0] == 3) {
1961 for (i
= 0; i
< term
->cols
; i
++)
1962 term
->tabs
[i
] = FALSE
;
1966 case 'r': /* set scroll margins */
1967 compatibility(VT100
);
1968 if (term
->esc_nargs
<= 2) {
1970 top
= def(term
->esc_args
[0], 1) - 1;
1971 bot
= (term
->esc_nargs
<= 1
1972 || term
->esc_args
[1] == 0 ?
1974 def(term
->esc_args
[1], term
->rows
)) - 1;
1975 if (bot
>= term
->rows
)
1976 bot
= term
->rows
- 1;
1977 /* VTTEST Bug 9 - if region is less than 2 lines
1978 * don't change region.
1980 if (bot
- top
> 0) {
1985 * I used to think the cursor should be
1986 * placed at the top of the newly marginned
1987 * area. Apparently not: VMS TPU falls over
1990 * Well actually it should for
1993 term
->curs
.y
= (term
->dec_om ?
1996 term
->seen_disp_event
= TRUE
;
2000 case 'm': /* set graphics rendition */
2003 * A VT100 without the AVO only had one
2004 * attribute, either underline or
2005 * reverse video depending on the
2006 * cursor type, this was selected by
2010 * This is sometimes DIM, eg on the
2013 * This is sometimes INVIS various ANSI.
2015 * This like 22 disables BOLD, DIM and INVIS
2017 * The ANSI colours appear on any
2018 * terminal that has colour (obviously)
2019 * but the interaction between sgr0 and
2020 * the colours varies but is usually
2021 * related to the background colour
2022 * erase item. The interaction between
2023 * colour attributes and the mono ones
2024 * is also very implementation
2027 * The 39 and 49 attributes are likely
2028 * to be unimplemented.
2031 for (i
= 0; i
< term
->esc_nargs
; i
++) {
2032 switch (def(term
->esc_args
[i
], 0)) {
2033 case 0: /* restore defaults */
2034 term
->curr_attr
= ATTR_DEFAULT
;
2036 case 1: /* enable bold */
2037 compatibility(VT100AVO
);
2038 term
->curr_attr
|= ATTR_BOLD
;
2040 case 21: /* (enable double underline) */
2041 compatibility(OTHER
);
2042 case 4: /* enable underline */
2043 compatibility(VT100AVO
);
2044 term
->curr_attr
|= ATTR_UNDER
;
2046 case 5: /* enable blink */
2047 compatibility(VT100AVO
);
2048 term
->curr_attr
|= ATTR_BLINK
;
2050 case 7: /* enable reverse video */
2051 term
->curr_attr
|= ATTR_REVERSE
;
2053 case 10: /* SCO acs off */
2054 compatibility(SCOANSI
);
2055 if (cfg
.no_remote_charset
) break;
2056 term
->sco_acs
= 0; break;
2057 case 11: /* SCO acs on */
2058 compatibility(SCOANSI
);
2059 if (cfg
.no_remote_charset
) break;
2060 term
->sco_acs
= 1; break;
2061 case 12: /* SCO acs on flipped */
2062 compatibility(SCOANSI
);
2063 if (cfg
.no_remote_charset
) break;
2064 term
->sco_acs
= 2; break;
2065 case 22: /* disable bold */
2066 compatibility2(OTHER
, VT220
);
2067 term
->curr_attr
&= ~ATTR_BOLD
;
2069 case 24: /* disable underline */
2070 compatibility2(OTHER
, VT220
);
2071 term
->curr_attr
&= ~ATTR_UNDER
;
2073 case 25: /* disable blink */
2074 compatibility2(OTHER
, VT220
);
2075 term
->curr_attr
&= ~ATTR_BLINK
;
2077 case 27: /* disable reverse video */
2078 compatibility2(OTHER
, VT220
);
2079 term
->curr_attr
&= ~ATTR_REVERSE
;
2090 term
->curr_attr
&= ~ATTR_FGMASK
;
2092 (term
->esc_args
[i
] - 30)<<ATTR_FGSHIFT
;
2094 case 39: /* default-foreground */
2095 term
->curr_attr
&= ~ATTR_FGMASK
;
2096 term
->curr_attr
|= ATTR_DEFFG
;
2107 term
->curr_attr
&= ~ATTR_BGMASK
;
2109 (term
->esc_args
[i
] - 40)<<ATTR_BGSHIFT
;
2111 case 49: /* default-background */
2112 term
->curr_attr
&= ~ATTR_BGMASK
;
2113 term
->curr_attr
|= ATTR_DEFBG
;
2118 term
->erase_char
= (' ' | ATTR_ASCII
|
2124 case 's': /* save cursor */
2125 save_cursor(term
, TRUE
);
2127 case 'u': /* restore cursor */
2128 save_cursor(term
, FALSE
);
2129 term
->seen_disp_event
= TRUE
;
2131 case 't': /* set page size - ie window height */
2133 * VT340/VT420 sequence DECSLPP, DEC only allows values
2134 * 24/25/36/48/72/144 other emulators (eg dtterm) use
2135 * illegal values (eg first arg 1..9) for window changing
2138 if (term
->esc_nargs
<= 1
2139 && (term
->esc_args
[0] < 1 ||
2140 term
->esc_args
[0] >= 24)) {
2141 compatibility(VT340TEXT
);
2142 if (!cfg
.no_remote_resize
)
2143 request_resize(term
->frontend
, term
->cols
,
2144 def(term
->esc_args
[0], 24));
2146 } else if (term
->esc_nargs
>= 1 &&
2147 term
->esc_args
[0] >= 1 &&
2148 term
->esc_args
[0] < 24) {
2149 compatibility(OTHER
);
2151 switch (term
->esc_args
[0]) {
2155 set_iconic(term
->frontend
, FALSE
);
2158 set_iconic(term
->frontend
, TRUE
);
2161 if (term
->esc_nargs
>= 3) {
2162 if (!cfg
.no_remote_resize
)
2163 move_window(term
->frontend
,
2164 def(term
->esc_args
[1], 0),
2165 def(term
->esc_args
[2], 0));
2169 /* We should resize the window to a given
2170 * size in pixels here, but currently our
2171 * resizing code isn't healthy enough to
2176 set_zorder(term
->frontend
, TRUE
);
2179 /* move to bottom */
2180 set_zorder(term
->frontend
, FALSE
);
2183 refresh_window(term
->frontend
);
2186 if (term
->esc_nargs
>= 3) {
2187 if (!cfg
.no_remote_resize
)
2188 request_resize(term
->frontend
,
2189 def(term
->esc_args
[2], cfg
.width
),
2190 def(term
->esc_args
[1], cfg
.height
));
2194 if (term
->esc_nargs
>= 2)
2195 set_zoomed(term
->frontend
,
2201 ldisc_send(term
->ldisc
,
2202 is_iconic(term
->frontend
) ?
2203 "\033[1t" : "\033[2t", 4, 0);
2207 get_window_pos(term
->frontend
, &x
, &y
);
2208 len
= sprintf(buf
, "\033[3;%d;%dt", x
, y
);
2209 ldisc_send(term
->ldisc
, buf
, len
, 0);
2214 get_window_pixels(term
->frontend
, &x
, &y
);
2215 len
= sprintf(buf
, "\033[4;%d;%dt", x
, y
);
2216 ldisc_send(term
->ldisc
, buf
, len
, 0);
2221 len
= sprintf(buf
, "\033[8;%d;%dt",
2222 term
->rows
, term
->cols
);
2223 ldisc_send(term
->ldisc
, buf
, len
, 0);
2228 * Hmmm. Strictly speaking we
2229 * should return `the size of the
2230 * screen in characters', but
2231 * that's not easy: (a) window
2232 * furniture being what it is it's
2233 * hard to compute, and (b) in
2234 * resize-font mode maximising the
2235 * window wouldn't change the
2236 * number of characters. *shrug*. I
2237 * think we'll ignore it for the
2238 * moment and see if anyone
2239 * complains, and then ask them
2240 * what they would like it to do.
2245 p
= get_window_title(term
->frontend
, TRUE
);
2247 ldisc_send(term
->ldisc
, "\033]L", 3, 0);
2248 ldisc_send(term
->ldisc
, p
, len
, 0);
2249 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2254 p
= get_window_title(term
->frontend
,FALSE
);
2256 ldisc_send(term
->ldisc
, "\033]l", 3, 0);
2257 ldisc_send(term
->ldisc
, p
, len
, 0);
2258 ldisc_send(term
->ldisc
, "\033\\", 2, 0);
2265 compatibility(SCOANSI
);
2266 scroll(term
, term
->marg_t
, term
->marg_b
,
2267 def(term
->esc_args
[0], 1), TRUE
);
2269 term
->wrapnext
= FALSE
;
2270 term
->seen_disp_event
= TRUE
;
2273 compatibility(SCOANSI
);
2274 scroll(term
, term
->marg_t
, term
->marg_b
,
2275 -def(term
->esc_args
[0], 1), TRUE
);
2277 term
->wrapnext
= FALSE
;
2278 term
->seen_disp_event
= TRUE
;
2280 case ANSI('|', '*'):
2281 /* VT420 sequence DECSNLS
2282 * Set number of lines on screen
2283 * VT420 uses VGA like hardware and can support any size in
2284 * reasonable range (24..49 AIUI) with no default specified.
2286 compatibility(VT420
);
2287 if (term
->esc_nargs
== 1 && term
->esc_args
[0] > 0) {
2288 if (!cfg
.no_remote_resize
)
2289 request_resize(term
->frontend
, term
->cols
,
2290 def(term
->esc_args
[0],
2295 case ANSI('|', '$'):
2296 /* VT340/VT420 sequence DECSCPP
2297 * Set number of columns per page
2298 * Docs imply range is only 80 or 132, but I'll allow any.
2300 compatibility(VT340TEXT
);
2301 if (term
->esc_nargs
<= 1) {
2302 if (!cfg
.no_remote_resize
)
2303 request_resize(term
->frontend
,
2304 def(term
->esc_args
[0],
2305 cfg
.width
), term
->rows
);
2309 case 'X': /* write N spaces w/o moving cursor */
2310 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
2311 compatibility(ANSIMIN
);
2313 int n
= def(term
->esc_args
[0], 1);
2315 unsigned long *p
= term
->cpos
;
2316 if (n
> term
->cols
- term
->curs
.x
)
2317 n
= term
->cols
- term
->curs
.x
;
2318 cursplus
= term
->curs
;
2320 check_selection(term
, term
->curs
, cursplus
);
2322 *p
++ = term
->erase_char
;
2323 term
->seen_disp_event
= TRUE
;
2326 case 'x': /* report terminal characteristics */
2327 compatibility(VT100
);
2330 int i
= def(term
->esc_args
[0], 0);
2331 if (i
== 0 || i
== 1) {
2332 strcpy(buf
, "\033[2;1;1;112;112;1;0x");
2334 ldisc_send(term
->ldisc
, buf
, 20, 0);
2338 case 'Z': /* BackTab for xterm */
2339 compatibility(OTHER
);
2341 int i
= def(term
->esc_args
[0], 1);
2342 pos old_curs
= term
->curs
;
2344 for(;i
>0 && term
->curs
.x
>0; i
--) {
2347 } while (term
->curs
.x
>0 &&
2348 !term
->tabs
[term
->curs
.x
]);
2351 check_selection(term
, old_curs
, term
->curs
);
2354 case ANSI('L', '='):
2355 compatibility(OTHER
);
2356 term
->use_bce
= (term
->esc_args
[0] <= 0);
2357 term
->erase_char
= ERASE_CHAR
;
2359 term
->erase_char
= (' ' | ATTR_ASCII
|
2361 (ATTR_FGMASK
| ATTR_BGMASK
)));
2363 case ANSI('E', '='):
2364 compatibility(OTHER
);
2365 term
->blink_is_real
= (term
->esc_args
[0] >= 1);
2367 case ANSI('p', '"'):
2369 * Allow the host to make this emulator a
2370 * 'perfect' VT102. This first appeared in
2371 * the VT220, but we do need to get back to
2372 * PuTTY mode so I won't check it.
2374 * The arg in 40..42,50 are a PuTTY extension.
2375 * The 2nd arg, 8bit vs 7bit is not checked.
2377 * Setting VT102 mode should also change
2378 * the Fkeys to generate PF* codes as a
2379 * real VT102 has no Fkeys. The VT220 does
2380 * this, F11..F13 become ESC,BS,LF other
2381 * Fkeys send nothing.
2383 * Note ESC c will NOT change this!
2386 switch (term
->esc_args
[0]) {
2388 term
->compatibility_level
&= ~TM_VTXXX
;
2389 term
->compatibility_level
|= TM_VT102
;
2392 term
->compatibility_level
&= ~TM_VTXXX
;
2393 term
->compatibility_level
|= TM_VT220
;
2397 if (term
->esc_args
[0] > 60 &&
2398 term
->esc_args
[0] < 70)
2399 term
->compatibility_level
|= TM_VTXXX
;
2403 term
->compatibility_level
&= TM_VTXXX
;
2406 term
->compatibility_level
= TM_PUTTY
;
2409 term
->compatibility_level
= TM_SCOANSI
;
2413 term
->compatibility_level
= TM_PUTTY
;
2419 /* Change the response to CSI c */
2420 if (term
->esc_args
[0] == 50) {
2423 strcpy(term
->id_string
, "\033[?");
2424 for (i
= 1; i
< term
->esc_nargs
; i
++) {
2426 strcat(term
->id_string
, ";");
2427 sprintf(lbuf
, "%d", term
->esc_args
[i
]);
2428 strcat(term
->id_string
, lbuf
);
2430 strcat(term
->id_string
, "c");
2433 /* Is this a good idea ?
2434 * Well we should do a soft reset at this point ...
2436 if (!has_compat(VT420
) && has_compat(VT100
)) {
2437 if (!cfg
.no_remote_resize
) {
2438 if (term
->reset_132
)
2439 request_resize(132, 24);
2441 request_resize(80, 24);
2449 term
->osc_w
= FALSE
;
2451 case 'P': /* Linux palette sequence */
2452 term
->termstate
= SEEN_OSC_P
;
2453 term
->osc_strlen
= 0;
2455 case 'R': /* Linux palette reset */
2456 palette_reset(term
->frontend
);
2457 term_invalidate(term
);
2458 term
->termstate
= TOPLEVEL
;
2460 case 'W': /* word-set */
2461 term
->termstate
= SEEN_OSC_W
;
2474 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2478 * Grotty hack to support xterm and DECterm title
2479 * sequences concurrently.
2481 if (term
->esc_args
[0] == 2) {
2482 term
->esc_args
[0] = 1;
2485 /* else fall through */
2487 term
->termstate
= OSC_STRING
;
2488 term
->osc_strlen
= 0;
2493 * This OSC stuff is EVIL. It takes just one character to get into
2494 * sysline mode and it's not initially obvious how to get out.
2495 * So I've added CR and LF as string aborts.
2496 * This shouldn't effect compatibility as I believe embedded
2497 * control characters are supposed to be interpreted (maybe?)
2498 * and they don't display anything useful anyway.
2502 if (c
== '\n' || c
== '\r') {
2503 term
->termstate
= TOPLEVEL
;
2504 } else if (c
== 0234 || c
== '\007') {
2506 * These characters terminate the string; ST and BEL
2507 * terminate the sequence and trigger instant
2508 * processing of it, whereas ESC goes back to SEEN_ESC
2509 * mode unless it is followed by \, in which case it is
2510 * synonymous with ST in the first place.
2513 term
->termstate
= TOPLEVEL
;
2514 } else if (c
== '\033')
2515 term
->termstate
= OSC_MAYBE_ST
;
2516 else if (term
->osc_strlen
< OSC_STR_MAX
)
2517 term
->osc_string
[term
->osc_strlen
++] = c
;
2521 int max
= (term
->osc_strlen
== 0 ?
21 : 16);
2523 if (c
>= '0' && c
<= '9')
2525 else if (c
>= 'A' && c
<= 'A' + max
- 10)
2527 else if (c
>= 'a' && c
<= 'a' + max
- 10)
2530 term
->termstate
= TOPLEVEL
;
2533 term
->osc_string
[term
->osc_strlen
++] = val
;
2534 if (term
->osc_strlen
>= 7) {
2535 palette_set(term
->frontend
, term
->osc_string
[0],
2536 term
->osc_string
[1] * 16 + term
->osc_string
[2],
2537 term
->osc_string
[3] * 16 + term
->osc_string
[4],
2538 term
->osc_string
[5] * 16 + term
->osc_string
[6]);
2539 term_invalidate(term
);
2540 term
->termstate
= TOPLEVEL
;
2556 term
->esc_args
[0] = 10 * term
->esc_args
[0] + c
- '0';
2559 term
->termstate
= OSC_STRING
;
2560 term
->osc_strlen
= 0;
2564 term
->termstate
= TOPLEVEL
;
2565 term
->seen_disp_event
= TRUE
;
2568 move(term
, term
->curs
.x
, term
->curs
.y
- 1, 1);
2571 move(term
, term
->curs
.x
, term
->curs
.y
+ 1, 1);
2574 move(term
, term
->curs
.x
+ 1, term
->curs
.y
, 1);
2577 move(term
, term
->curs
.x
- 1, term
->curs
.y
, 1);
2580 * From the VT100 Manual
2581 * NOTE: The special graphics characters in the VT100
2582 * are different from those in the VT52
2584 * From VT102 manual:
2585 * 137 _ Blank - Same
2586 * 140 ` Reserved - Humm.
2587 * 141 a Solid rectangle - Similar
2588 * 142 b 1/ - Top half of fraction for the
2589 * 143 c 3/ - subscript numbers below.
2592 * 146 f Degrees - Same
2593 * 147 g Plus or minus - Same
2595 * 151 i Ellipsis (dots)
2598 * 154 l Bar at scan 0
2599 * 155 m Bar at scan 1
2600 * 156 n Bar at scan 2
2601 * 157 o Bar at scan 3 - Similar
2602 * 160 p Bar at scan 4 - Similar
2603 * 161 q Bar at scan 5 - Similar
2604 * 162 r Bar at scan 6 - Same
2605 * 163 s Bar at scan 7 - Similar
2620 term
->cset_attr
[term
->cset
= 0] = ATTR_LINEDRW
;
2623 term
->cset_attr
[term
->cset
= 0] = ATTR_ASCII
;
2626 move(term
, 0, 0, 0);
2629 if (term
->curs
.y
== 0)
2630 scroll(term
, 0, term
->rows
- 1, -1, TRUE
);
2631 else if (term
->curs
.y
> 0)
2634 term
->wrapnext
= FALSE
;
2637 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2641 erase_lots(term
, TRUE
, FALSE
, TRUE
);
2645 /* XXX Print cursor line */
2648 /* XXX Start controller mode */
2651 /* XXX Stop controller mode */
2655 term
->termstate
= VT52_Y1
;
2659 ldisc_send(term
->ldisc
, "\033/Z", 3, 0);
2662 term
->app_keypad_keys
= TRUE
;
2665 term
->app_keypad_keys
= FALSE
;
2668 /* XXX This should switch to VT100 mode not current or default
2669 * VT mode. But this will only have effect in a VT220+
2672 term
->vt52_mode
= FALSE
;
2673 term
->blink_is_real
= cfg
.blinktext
;
2677 /* XXX Enter auto print mode */
2680 /* XXX Exit auto print mode */
2683 /* XXX Print screen */
2689 /* compatibility(ATARI) */
2690 move(term
, 0, 0, 0);
2691 erase_lots(term
, FALSE
, FALSE
, TRUE
);
2695 /* compatibility(ATARI) */
2696 if (term
->curs
.y
<= term
->marg_b
)
2697 scroll(term
, term
->curs
.y
, term
->marg_b
, -1, FALSE
);
2700 /* compatibility(ATARI) */
2701 if (term
->curs
.y
<= term
->marg_b
)
2702 scroll(term
, term
->curs
.y
, term
->marg_b
, 1, TRUE
);
2705 /* compatibility(ATARI) */
2706 term
->termstate
= VT52_FG
;
2709 /* compatibility(ATARI) */
2710 term
->termstate
= VT52_BG
;
2713 /* compatibility(ATARI) */
2714 erase_lots(term
, FALSE
, TRUE
, FALSE
);
2718 /* compatibility(ATARI) */
2719 term
->cursor_on
= TRUE
;
2722 /* compatibility(ATARI) */
2723 term
->cursor_on
= FALSE
;
2725 /* case 'j': Save cursor position - broken on ST */
2726 /* case 'k': Restore cursor position */
2728 /* compatibility(ATARI) */
2729 erase_lots(term
, TRUE
, TRUE
, TRUE
);
2731 term
->wrapnext
= FALSE
;
2735 /* compatibility(ATARI) */
2736 erase_lots(term
, TRUE
, TRUE
, FALSE
);
2739 /* compatibility(ATARI) */
2740 term
->curr_attr
|= ATTR_REVERSE
;
2743 /* compatibility(ATARI) */
2744 term
->curr_attr
&= ~ATTR_REVERSE
;
2746 case 'v': /* wrap Autowrap on - Wyse style */
2747 /* compatibility(ATARI) */
2750 case 'w': /* Autowrap off */
2751 /* compatibility(ATARI) */
2756 /* compatibility(OTHER) */
2757 term
->vt52_bold
= FALSE
;
2758 term
->curr_attr
= ATTR_DEFAULT
;
2760 term
->erase_char
= (' ' | ATTR_ASCII
|
2762 (ATTR_FGMASK
| ATTR_BGMASK
)));
2765 /* compatibility(VI50) */
2766 term
->curr_attr
|= ATTR_UNDER
;
2769 /* compatibility(VI50) */
2770 term
->curr_attr
&= ~ATTR_UNDER
;
2773 /* compatibility(VI50) */
2774 term
->vt52_bold
= TRUE
;
2775 term
->curr_attr
|= ATTR_BOLD
;
2778 /* compatibility(VI50) */
2779 term
->vt52_bold
= FALSE
;
2780 term
->curr_attr
&= ~ATTR_BOLD
;
2786 term
->termstate
= VT52_Y2
;
2787 move(term
, term
->curs
.x
, c
- ' ', 0);
2790 term
->termstate
= TOPLEVEL
;
2791 move(term
, c
- ' ', term
->curs
.y
, 0);
2796 term
->termstate
= TOPLEVEL
;
2797 term
->curr_attr
&= ~ATTR_FGMASK
;
2798 term
->curr_attr
&= ~ATTR_BOLD
;
2799 term
->curr_attr
|= (c
& 0x7) << ATTR_FGSHIFT
;
2800 if ((c
& 0x8) || term
->vt52_bold
)
2801 term
->curr_attr
|= ATTR_BOLD
;
2804 term
->erase_char
= (' ' | ATTR_ASCII
|
2806 (ATTR_FGMASK
| ATTR_BGMASK
)));
2809 term
->termstate
= TOPLEVEL
;
2810 term
->curr_attr
&= ~ATTR_BGMASK
;
2811 term
->curr_attr
&= ~ATTR_BLINK
;
2812 term
->curr_attr
|= (c
& 0x7) << ATTR_BGSHIFT
;
2814 /* Note: bold background */
2816 term
->curr_attr
|= ATTR_BLINK
;
2819 term
->erase_char
= (' ' | ATTR_ASCII
|
2821 (ATTR_FGMASK
| ATTR_BGMASK
)));
2824 default: break; /* placate gcc warning about enum use */
2826 if (term
->selstate
!= NO_SELECTION
) {
2827 pos cursplus
= term
->curs
;
2829 check_selection(term
, term
->curs
, cursplus
);
2833 term_print_flush(term
);
2838 * Compare two lines to determine whether they are sufficiently
2839 * alike to scroll-optimise one to the other. Return the degree of
2842 static int linecmp(Terminal
*term
, unsigned long *a
, unsigned long *b
)
2846 for (i
= n
= 0; i
< term
->cols
; i
++)
2847 n
+= (*a
++ == *b
++);
2853 * Given a context, update the window. Out of paranoia, we don't
2854 * allow WM_PAINT responses to do scrolling optimisations.
2856 static void do_paint(Terminal
*term
, Context ctx
, int may_optimise
)
2858 int i
, j
, our_curs_y
;
2859 unsigned long rv
, cursor
;
2862 long cursor_background
= ERASE_CHAR
;
2863 unsigned long ticks
;
2866 * Check the visual bell state.
2868 if (term
->in_vbell
) {
2869 ticks
= GETTICKCOUNT();
2870 if (ticks
- term
->vbell_startpoint
>= VBELL_TIMEOUT
)
2871 term
->in_vbell
= FALSE
;
2874 rv
= (!term
->rvideo
^ !term
->in_vbell ? ATTR_REVERSE
: 0);
2877 * screen array, disptop, scrtop,
2879 * cfg.blinkpc, blink_is_real, tblinker,
2880 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
2883 /* Has the cursor position or type changed ? */
2884 if (term
->cursor_on
) {
2885 if (term
->has_focus
) {
2886 if (term
->blinker
|| !cfg
.blink_cur
)
2887 cursor
= TATTR_ACTCURS
;
2891 cursor
= TATTR_PASCURS
;
2893 cursor
|= TATTR_RIGHTCURS
;
2896 our_curs_y
= term
->curs
.y
- term
->disptop
;
2898 if (term
->dispcurs
&& (term
->curstype
!= cursor
||
2900 term
->disptext
+ our_curs_y
* (term
->cols
+ 1) +
2902 if (term
->dispcurs
> term
->disptext
&&
2903 (*term
->dispcurs
& (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2904 term
->dispcurs
[-1] |= ATTR_INVALID
;
2905 if ( (term
->dispcurs
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2906 term
->dispcurs
[1] |= ATTR_INVALID
;
2907 *term
->dispcurs
|= ATTR_INVALID
;
2910 term
->dispcurs
= NULL
;
2912 /* The normal screen data */
2913 for (i
= 0; i
< term
->rows
; i
++) {
2914 unsigned long *ldata
;
2916 int idx
, dirty_line
, dirty_run
, selected
;
2917 unsigned long attr
= 0;
2918 int updated_line
= 0;
2921 int last_run_dirty
= 0;
2923 scrpos
.y
= i
+ term
->disptop
;
2924 ldata
= lineptr(scrpos
.y
);
2925 lattr
= (ldata
[term
->cols
] & LATTR_MODE
);
2927 idx
= i
* (term
->cols
+ 1);
2928 dirty_run
= dirty_line
= (ldata
[term
->cols
] !=
2929 term
->disptext
[idx
+ term
->cols
]);
2930 term
->disptext
[idx
+ term
->cols
] = ldata
[term
->cols
];
2932 for (j
= 0; j
< term
->cols
; j
++, idx
++) {
2933 unsigned long tattr
, tchar
;
2934 unsigned long *d
= ldata
+ j
;
2938 tchar
= (*d
& (CHAR_MASK
| CSET_MASK
));
2939 tattr
= (*d
& (ATTR_MASK
^ CSET_MASK
));
2940 switch (tchar
& CSET_MASK
) {
2942 tchar
= unitab_line
[tchar
& 0xFF];
2945 tchar
= unitab_xterm
[tchar
& 0xFF];
2948 tchar
= unitab_scoacs
[tchar
&0xFF];
2951 tattr
|= (tchar
& CSET_MASK
);
2953 if ((d
[1] & (CHAR_MASK
| CSET_MASK
)) == UCSWIDE
)
2956 /* Video reversing things */
2957 if (term
->selstate
== DRAGGING
|| term
->selstate
== SELECTED
) {
2958 if (term
->seltype
== LEXICOGRAPHIC
)
2959 selected
= (posle(term
->selstart
, scrpos
) &&
2960 poslt(scrpos
, term
->selend
));
2962 selected
= (posPle(term
->selstart
, scrpos
) &&
2963 posPlt(scrpos
, term
->selend
));
2967 ^ (selected ? ATTR_REVERSE
: 0));
2969 /* 'Real' blinking ? */
2970 if (term
->blink_is_real
&& (tattr
& ATTR_BLINK
)) {
2971 if (term
->has_focus
&& term
->tblinker
) {
2973 tattr
&= ~CSET_MASK
;
2976 tattr
&= ~ATTR_BLINK
;
2980 * Check the font we'll _probably_ be using to see if
2981 * the character is wide when we don't want it to be.
2983 if ((tchar
| tattr
) != (term
->disptext
[idx
]& ~ATTR_NARROW
)) {
2984 if ((tattr
& ATTR_WIDE
) == 0 &&
2985 CharWidth(ctx
, (tchar
| tattr
) & 0xFFFF) == 2)
2986 tattr
|= ATTR_NARROW
;
2987 } else if (term
->disptext
[idx
]&ATTR_NARROW
)
2988 tattr
|= ATTR_NARROW
;
2990 /* Cursor here ? Save the 'background' */
2991 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
2992 cursor_background
= tattr
| tchar
;
2993 term
->dispcurs
= term
->disptext
+ idx
;
2996 if ((term
->disptext
[idx
] ^ tattr
) & ATTR_WIDE
)
2999 break_run
= (tattr
!= attr
|| j
- start
>= sizeof(ch
));
3001 /* Special hack for VT100 Linedraw glyphs */
3002 if ((attr
& CSET_MASK
) == 0x2300 && tchar
>= 0xBA
3003 && tchar
<= 0xBD) break_run
= TRUE
;
3005 if (!dbcs_screenfont
&& !dirty_line
) {
3006 if ((tchar
| tattr
) == term
->disptext
[idx
])
3008 else if (!dirty_run
&& ccount
== 1)
3013 if ((dirty_run
|| last_run_dirty
) && ccount
> 0) {
3014 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3020 if (dbcs_screenfont
)
3021 last_run_dirty
= dirty_run
;
3022 dirty_run
= dirty_line
;
3025 if ((tchar
| tattr
) != term
->disptext
[idx
])
3027 ch
[ccount
++] = (char) tchar
;
3028 term
->disptext
[idx
] = tchar
| tattr
;
3030 /* If it's a wide char step along to the next one. */
3031 if (tattr
& ATTR_WIDE
) {
3032 if (++j
< term
->cols
) {
3035 /* Cursor is here ? Ouch! */
3036 if (i
== our_curs_y
&& j
== term
->curs
.x
) {
3037 cursor_background
= *d
;
3038 term
->dispcurs
= term
->disptext
+ idx
;
3040 if (term
->disptext
[idx
] != *d
)
3042 term
->disptext
[idx
] = *d
;
3046 if (dirty_run
&& ccount
> 0) {
3047 do_text(ctx
, start
, i
, ch
, ccount
, attr
, lattr
);
3051 /* Cursor on this line ? (and changed) */
3052 if (i
== our_curs_y
&& (term
->curstype
!= cursor
|| updated_line
)) {
3053 ch
[0] = (char) (cursor_background
& CHAR_MASK
);
3054 attr
= (cursor_background
& ATTR_MASK
) | cursor
;
3055 do_cursor(ctx
, term
->curs
.x
, i
, ch
, 1, attr
, lattr
);
3056 term
->curstype
= cursor
;
3062 * Flick the switch that says if blinking things should be shown or hidden.
3065 void term_blink(Terminal
*term
, int flg
)
3067 long now
, blink_diff
;
3069 now
= GETTICKCOUNT();
3070 blink_diff
= now
- term
->last_tblink
;
3072 /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
3073 if (blink_diff
< 0 || blink_diff
> (TICKSPERSEC
* 9 / 20)) {
3074 term
->last_tblink
= now
;
3075 term
->tblinker
= !term
->tblinker
;
3080 term
->last_blink
= now
;
3084 blink_diff
= now
- term
->last_blink
;
3086 /* Make sure the cursor blinks no faster than system blink rate */
3087 if (blink_diff
>= 0 && blink_diff
< (long) CURSORBLINK
)
3090 term
->last_blink
= now
;
3091 term
->blinker
= !term
->blinker
;
3095 * Invalidate the whole screen so it will be repainted in full.
3097 void term_invalidate(Terminal
*term
)
3101 for (i
= 0; i
< term
->rows
* (term
->cols
+ 1); i
++)
3102 term
->disptext
[i
] = ATTR_INVALID
;
3106 * Paint the window in response to a WM_PAINT message.
3108 void term_paint(Terminal
*term
, Context ctx
,
3109 int left
, int top
, int right
, int bottom
)
3112 if (left
< 0) left
= 0;
3113 if (top
< 0) top
= 0;
3114 if (right
>= term
->cols
) right
= term
->cols
-1;
3115 if (bottom
>= term
->rows
) bottom
= term
->rows
-1;
3117 for (i
= top
; i
<= bottom
&& i
< term
->rows
; i
++) {
3118 if ((term
->disptext
[i
* (term
->cols
+ 1) + term
->cols
] &
3119 LATTR_MODE
) == LATTR_NORM
)
3120 for (j
= left
; j
<= right
&& j
< term
->cols
; j
++)
3121 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3123 for (j
= left
/ 2; j
<= right
/ 2 + 1 && j
< term
->cols
; j
++)
3124 term
->disptext
[i
* (term
->cols
+ 1) + j
] = ATTR_INVALID
;
3127 /* This should happen soon enough, also for some reason it sometimes
3128 * fails to actually do anything when re-sizing ... painting the wrong
3132 do_paint (term
, ctx
, FALSE
);
3136 * Attempt to scroll the scrollback. The second parameter gives the
3137 * position we want to scroll to; the first is +1 to denote that
3138 * this position is relative to the beginning of the scrollback, -1
3139 * to denote it is relative to the end, and 0 to denote that it is
3140 * relative to the current position.
3142 void term_scroll(Terminal
*term
, int rel
, int where
)
3144 int sbtop
= -count234(term
->scrollback
);
3146 term
->disptop
= (rel
< 0 ?
0 : rel
> 0 ? sbtop
: term
->disptop
) + where
;
3147 if (term
->disptop
< sbtop
)
3148 term
->disptop
= sbtop
;
3149 if (term
->disptop
> 0)
3155 static void clipme(Terminal
*term
, pos top
, pos bottom
, int rect
)
3158 wchar_t *wbptr
; /* where next char goes within workbuf */
3160 int wblen
= 0; /* workbuf len */
3161 int buflen
; /* amount of memory allocated to workbuf */
3163 buflen
= 5120; /* Default size */
3164 workbuf
= smalloc(buflen
* sizeof(wchar_t));
3165 wbptr
= workbuf
; /* start filling here */
3166 old_top_x
= top
.x
; /* needed for rect==1 */
3168 while (poslt(top
, bottom
)) {
3170 unsigned long *ldata
= lineptr(top
.y
);
3174 * nlpos will point at the maximum position on this line we
3175 * should copy up to. So we start it at the end of the
3179 nlpos
.x
= term
->cols
;
3182 * ... move it backwards if there's unused space at the end
3183 * of the line (and also set `nl' if this is the case,
3184 * because in normal selection mode this means we need a
3185 * newline at the end)...
3187 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3188 while (((ldata
[nlpos
.x
- 1] & 0xFF) == 0x20 ||
3189 (DIRECT_CHAR(ldata
[nlpos
.x
- 1]) &&
3190 (ldata
[nlpos
.x
- 1] & CHAR_MASK
) == 0x20))
3191 && poslt(top
, nlpos
))
3193 if (poslt(nlpos
, bottom
))
3198 * ... and then clip it to the terminal x coordinate if
3199 * we're doing rectangular selection. (In this case we
3200 * still did the above, so that copying e.g. the right-hand
3201 * column from a table doesn't fill with spaces on the
3205 if (nlpos
.x
> bottom
.x
)
3207 nl
= (top
.y
< bottom
.y
);
3210 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
3213 sprintf(cbuf
, "<U+%04x>", (ldata
[top
.x
] & 0xFFFF));
3215 wchar_t cbuf
[16], *p
;
3216 int uc
= (ldata
[top
.x
] & 0xFFFF);
3219 if (uc
== UCSWIDE
) {
3224 switch (uc
& CSET_MASK
) {
3227 uc
= unitab_xterm
[uc
& 0xFF];
3231 uc
= unitab_line
[uc
& 0xFF];
3234 uc
= unitab_scoacs
[uc
&0xFF];
3237 switch (uc
& CSET_MASK
) {
3239 uc
= unitab_font
[uc
& 0xFF];
3242 uc
= unitab_oemcp
[uc
& 0xFF];
3246 set
= (uc
& CSET_MASK
);
3247 c
= (uc
& CHAR_MASK
);
3251 if (DIRECT_FONT(uc
)) {
3252 if (c
>= ' ' && c
!= 0x7F) {
3253 unsigned char buf
[4];
3256 if (is_dbcs_leadbyte(font_codepage
, (BYTE
) c
)) {
3258 buf
[1] = (unsigned char) ldata
[top
.x
+ 1];
3259 rv
= mb_to_wc(font_codepage
, 0, buf
, 2, wbuf
, 4);
3263 rv
= mb_to_wc(font_codepage
, 0, buf
, 1, wbuf
, 4);
3267 memcpy(cbuf
, wbuf
, rv
* sizeof(wchar_t));
3274 for (p
= cbuf
; *p
; p
++) {
3275 /* Enough overhead for trailing NL and nul */
3276 if (wblen
>= buflen
- 16) {
3279 sizeof(wchar_t) * (buflen
+= 100));
3280 wbptr
= workbuf
+ wblen
;
3289 for (i
= 0; i
< sel_nl_sz
; i
++) {
3291 *wbptr
++ = sel_nl
[i
];
3295 top
.x
= rect ? old_top_x
: 0;
3297 #if SELECTION_NUL_TERMINATED
3301 write_clip(term
->frontend
, workbuf
, wblen
, FALSE
); /* transfer to clipbd */
3302 if (buflen
> 0) /* indicates we allocated this buffer */
3306 void term_copyall(Terminal
*term
)
3309 top
.y
= -count234(term
->scrollback
);
3311 clipme(term
, top
, term
->curs
, 0);
3315 * The wordness array is mainly for deciding the disposition of the
3316 * US-ASCII characters.
3318 static int wordtype(Terminal
*term
, int uc
)
3321 int start
, end
, ctype
;
3323 static const struct ucsword ucs_words
[] = {
3329 0x037e, 0x037e, 1}, /* Greek question mark */
3331 0x0387, 0x0387, 1}, /* Greek ano teleia */
3333 0x055a, 0x055f, 1}, /* Armenian punctuation */
3335 0x0589, 0x0589, 1}, /* Armenian full stop */
3337 0x0700, 0x070d, 1}, /* Syriac punctuation */
3339 0x104a, 0x104f, 1}, /* Myanmar punctuation */
3341 0x10fb, 0x10fb, 1}, /* Georgian punctuation */
3343 0x1361, 0x1368, 1}, /* Ethiopic punctuation */
3345 0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */
3347 0x17d4, 0x17dc, 1}, /* Khmer punctuation */
3349 0x1800, 0x180a, 1}, /* Mongolian punctuation */
3351 0x2000, 0x200a, 0}, /* Various spaces */
3353 0x2070, 0x207f, 2}, /* superscript */
3355 0x2080, 0x208f, 2}, /* subscript */
3357 0x200b, 0x27ff, 1}, /* punctuation and symbols */
3359 0x3000, 0x3000, 0}, /* ideographic space */
3361 0x3001, 0x3020, 1}, /* ideographic punctuation */
3363 0x303f, 0x309f, 3}, /* Hiragana */
3365 0x30a0, 0x30ff, 3}, /* Katakana */
3367 0x3300, 0x9fff, 3}, /* CJK Ideographs */
3369 0xac00, 0xd7a3, 3}, /* Hangul Syllables */
3371 0xf900, 0xfaff, 3}, /* CJK Ideographs */
3373 0xfe30, 0xfe6b, 1}, /* punctuation forms */
3375 0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */
3377 0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */
3379 0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */
3381 0xff5b, 0xff64, 1}, /* half/fullwidth ASCII */
3383 0xfff0, 0xffff, 0}, /* half/fullwidth ASCII */
3387 const struct ucsword
*wptr
;
3389 uc
&= (CSET_MASK
| CHAR_MASK
);
3391 switch (uc
& CSET_MASK
) {
3393 uc
= unitab_xterm
[uc
& 0xFF];
3396 uc
= unitab_line
[uc
& 0xFF];
3399 uc
= unitab_scoacs
[uc
&0xFF];
3402 switch (uc
& CSET_MASK
) {
3404 uc
= unitab_font
[uc
& 0xFF];
3407 uc
= unitab_oemcp
[uc
& 0xFF];
3411 /* For DBCS font's I can't do anything usefull. Even this will sometimes
3412 * fail as there's such a thing as a double width space. :-(
3414 if (dbcs_screenfont
&& font_codepage
== line_codepage
)
3418 return term
->wordness
[uc
];
3420 for (wptr
= ucs_words
; wptr
->start
; wptr
++) {
3421 if (uc
>= wptr
->start
&& uc
<= wptr
->end
)
3429 * Spread the selection outwards according to the selection mode.
3431 static pos
sel_spread_half(Terminal
*term
, pos p
, int dir
)
3433 unsigned long *ldata
;
3435 int topy
= -count234(term
->scrollback
);
3437 ldata
= lineptr(p
.y
);
3439 switch (term
->selmode
) {
3442 * In this mode, every character is a separate unit, except
3443 * for runs of spaces at the end of a non-wrapping line.
3445 if (!(ldata
[term
->cols
] & LATTR_WRAPPED
)) {
3446 unsigned long *q
= ldata
+ term
->cols
;
3447 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
3449 if (q
== ldata
+ term
->cols
)
3451 if (p
.x
>= q
- ldata
)
3452 p
.x
= (dir
== -1 ? q
- ldata
: term
->cols
- 1);
3457 * In this mode, the units are maximal runs of characters
3458 * whose `wordness' has the same value.
3460 wvalue
= wordtype(term
, ldata
[p
.x
]);
3463 if (p
.x
< term
->cols
-1) {
3464 if (wordtype(term
, ldata
[p
.x
+ 1]) == wvalue
)
3469 if (ldata
[term
->cols
] & LATTR_WRAPPED
) {
3470 unsigned long *ldata2
;
3471 ldata2
= lineptr(p
.y
+1);
3472 if (wordtype(term
, ldata2
[0]) == wvalue
) {
3485 if (wordtype(term
, ldata
[p
.x
- 1]) == wvalue
)
3490 unsigned long *ldata2
;
3493 ldata2
= lineptr(p
.y
-1);
3494 if ((ldata2
[term
->cols
] & LATTR_WRAPPED
) &&
3495 wordtype(term
, ldata2
[term
->cols
-1]) == wvalue
) {
3507 * In this mode, every line is a unit.
3509 p
.x
= (dir
== -1 ?
0 : term
->cols
- 1);
3515 static void sel_spread(Terminal
*term
)
3517 if (term
->seltype
== LEXICOGRAPHIC
) {
3518 term
->selstart
= sel_spread_half(term
, term
->selstart
, -1);
3519 decpos(term
->selend
);
3520 term
->selend
= sel_spread_half(term
, term
->selend
, +1);
3521 incpos(term
->selend
);
3525 void term_do_paste(Terminal
*term
)
3530 get_clip(term
->frontend
, &data
, &len
);
3531 if (data
&& len
> 0) {
3534 term_seen_key_event(term
); /* pasted data counts */
3536 if (term
->paste_buffer
)
3537 sfree(term
->paste_buffer
);
3538 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3539 term
->paste_buffer
= smalloc(len
* sizeof(wchar_t));
3542 while (p
< data
+ len
) {
3543 while (p
< data
+ len
&&
3544 !(p
<= data
+ len
- sel_nl_sz
&&
3545 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
3550 for (i
= 0; i
< p
- q
; i
++) {
3551 term
->paste_buffer
[term
->paste_len
++] = q
[i
];
3555 if (p
<= data
+ len
- sel_nl_sz
&&
3556 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
3557 term
->paste_buffer
[term
->paste_len
++] = '\r';
3563 /* Assume a small paste will be OK in one go. */
3564 if (term
->paste_len
< 256) {
3566 luni_send(term
->ldisc
, term
->paste_buffer
, term
->paste_len
, 0);
3567 if (term
->paste_buffer
)
3568 sfree(term
->paste_buffer
);
3569 term
->paste_buffer
= 0;
3570 term
->paste_pos
= term
->paste_hold
= term
->paste_len
= 0;
3573 get_clip(term
->frontend
, NULL
, NULL
);
3576 void term_mouse(Terminal
*term
, Mouse_Button b
, Mouse_Action a
, int x
, int y
,
3577 int shift
, int ctrl
, int alt
)
3580 unsigned long *ldata
;
3581 int raw_mouse
= (term
->xterm_mouse
&&
3582 !cfg
.no_mouse_rep
&&
3583 !(cfg
.mouse_override
&& shift
));
3584 int default_seltype
;
3588 if (a
== MA_DRAG
&& !raw_mouse
)
3589 term_scroll(term
, 0, -1);
3591 if (y
>= term
->rows
) {
3593 if (a
== MA_DRAG
&& !raw_mouse
)
3594 term_scroll(term
, 0, +1);
3603 if (x
>= term
->cols
)
3606 selpoint
.y
= y
+ term
->disptop
;
3608 ldata
= lineptr(selpoint
.y
);
3609 if ((ldata
[term
->cols
] & LATTR_MODE
) != LATTR_NORM
)
3613 int encstate
= 0, r
, c
;
3620 encstate
= 0x20; /* left button down */
3631 case MBT_WHEEL_DOWN
:
3634 default: break; /* placate gcc warning about enum use */
3638 if (term
->xterm_mouse
== 1)
3644 term
->mouse_is_down
= 0;
3647 if (term
->mouse_is_down
== b
)
3649 term
->mouse_is_down
= b
;
3651 default: break; /* placate gcc warning about enum use */
3660 sprintf(abuf
, "\033[M%c%c%c", encstate
, c
, r
);
3661 ldisc_send(term
->ldisc
, abuf
, 6, 0);
3666 b
= translate_button(term
->frontend
, b
);
3669 * Set the selection type (rectangular or normal) at the start
3670 * of a selection attempt, from the state of Alt.
3672 if (!alt
^ !cfg
.rect_select
)
3673 default_seltype
= RECTANGULAR
;
3675 default_seltype
= LEXICOGRAPHIC
;
3677 if (term
->selstate
== NO_SELECTION
) {
3678 term
->seltype
= default_seltype
;
3681 if (b
== MBT_SELECT
&& a
== MA_CLICK
) {
3683 term
->selstate
= ABOUT_TO
;
3684 term
->seltype
= default_seltype
;
3685 term
->selanchor
= selpoint
;
3686 term
->selmode
= SM_CHAR
;
3687 } else if (b
== MBT_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
3689 term
->selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
3690 term
->selstate
= DRAGGING
;
3691 term
->selstart
= term
->selanchor
= selpoint
;
3692 term
->selend
= term
->selstart
;
3693 incpos(term
->selend
);
3695 } else if ((b
== MBT_SELECT
&& a
== MA_DRAG
) ||
3696 (b
== MBT_EXTEND
&& a
!= MA_RELEASE
)) {
3697 if (term
->selstate
== ABOUT_TO
&& poseq(term
->selanchor
, selpoint
))
3699 if (b
== MBT_EXTEND
&& a
!= MA_DRAG
&& term
->selstate
== SELECTED
) {
3700 if (term
->seltype
== LEXICOGRAPHIC
) {
3702 * For normal selection, we extend by moving
3703 * whichever end of the current selection is closer
3706 if (posdiff(selpoint
, term
->selstart
) <
3707 posdiff(term
->selend
, term
->selstart
) / 2) {
3708 term
->selanchor
= term
->selend
;
3709 decpos(term
->selanchor
);
3711 term
->selanchor
= term
->selstart
;
3715 * For rectangular selection, we have a choice of
3716 * _four_ places to put selanchor and selpoint: the
3717 * four corners of the selection.
3719 if (2*selpoint
.x
< term
->selstart
.x
+ term
->selend
.x
)
3720 term
->selanchor
.x
= term
->selend
.x
-1;
3722 term
->selanchor
.x
= term
->selstart
.x
;
3724 if (2*selpoint
.y
< term
->selstart
.y
+ term
->selend
.y
)
3725 term
->selanchor
.y
= term
->selend
.y
;
3727 term
->selanchor
.y
= term
->selstart
.y
;
3729 term
->selstate
= DRAGGING
;
3731 if (term
->selstate
!= ABOUT_TO
&& term
->selstate
!= DRAGGING
)
3732 term
->selanchor
= selpoint
;
3733 term
->selstate
= DRAGGING
;
3734 if (term
->seltype
== LEXICOGRAPHIC
) {
3736 * For normal selection, we set (selstart,selend) to
3737 * (selpoint,selanchor) in some order.
3739 if (poslt(selpoint
, term
->selanchor
)) {
3740 term
->selstart
= selpoint
;
3741 term
->selend
= term
->selanchor
;
3742 incpos(term
->selend
);
3744 term
->selstart
= term
->selanchor
;
3745 term
->selend
= selpoint
;
3746 incpos(term
->selend
);
3750 * For rectangular selection, we may need to
3751 * interchange x and y coordinates (if the user has
3752 * dragged in the -x and +y directions, or vice versa).
3754 term
->selstart
.x
= min(term
->selanchor
.x
, selpoint
.x
);
3755 term
->selend
.x
= 1+max(term
->selanchor
.x
, selpoint
.x
);
3756 term
->selstart
.y
= min(term
->selanchor
.y
, selpoint
.y
);
3757 term
->selend
.y
= max(term
->selanchor
.y
, selpoint
.y
);
3760 } else if ((b
== MBT_SELECT
|| b
== MBT_EXTEND
) && a
== MA_RELEASE
) {
3761 if (term
->selstate
== DRAGGING
) {
3763 * We've completed a selection. We now transfer the
3764 * data to the clipboard.
3766 clipme(term
, term
->selstart
, term
->selend
,
3767 (term
->seltype
== RECTANGULAR
));
3768 term
->selstate
= SELECTED
;
3770 term
->selstate
= NO_SELECTION
;
3771 } else if (b
== MBT_PASTE
3773 #if MULTICLICK_ONLY_EVENT
3774 || a
== MA_2CLK
|| a
== MA_3CLK
3777 request_paste(term
->frontend
);
3783 void term_nopaste(Terminal
*term
)
3785 if (term
->paste_len
== 0)
3787 sfree(term
->paste_buffer
);
3788 term
->paste_buffer
= NULL
;
3789 term
->paste_len
= 0;
3792 int term_paste_pending(Terminal
*term
)
3794 return term
->paste_len
!= 0;
3797 void term_paste(Terminal
*term
)
3799 long now
, paste_diff
;
3801 if (term
->paste_len
== 0)
3804 /* Don't wait forever to paste */
3805 if (term
->paste_hold
) {
3806 now
= GETTICKCOUNT();
3807 paste_diff
= now
- term
->last_paste
;
3808 if (paste_diff
>= 0 && paste_diff
< 450)
3811 term
->paste_hold
= 0;
3813 while (term
->paste_pos
< term
->paste_len
) {
3815 while (n
+ term
->paste_pos
< term
->paste_len
) {
3816 if (term
->paste_buffer
[term
->paste_pos
+ n
++] == '\r')
3820 luni_send(term
->ldisc
, term
->paste_buffer
+ term
->paste_pos
, n
, 0);
3821 term
->paste_pos
+= n
;
3823 if (term
->paste_pos
< term
->paste_len
) {
3824 term
->paste_hold
= 1;
3828 sfree(term
->paste_buffer
);
3829 term
->paste_buffer
= NULL
;
3830 term
->paste_len
= 0;
3833 static void deselect(Terminal
*term
)
3835 term
->selstate
= NO_SELECTION
;
3836 term
->selstart
.x
= term
->selstart
.y
= term
->selend
.x
= term
->selend
.y
= 0;
3839 void term_deselect(Terminal
*term
)
3845 int term_ldisc(Terminal
*term
, int option
)
3847 if (option
== LD_ECHO
)
3848 return term
->term_echoing
;
3849 if (option
== LD_EDIT
)
3850 return term
->term_editing
;
3855 * from_backend(), to get data from the backend for the terminal.
3857 int from_backend(void *vterm
, int is_stderr
, char *data
, int len
)
3859 Terminal
*term
= (Terminal
*)vterm
;
3863 bufchain_add(&term
->inbuf
, data
, len
);
3866 * term_out() always completely empties inbuf. Therefore,
3867 * there's no reason at all to return anything other than zero
3868 * from this function, because there _can't_ be a question of
3869 * the remote side needing to wait until term_out() has cleared
3872 * This is a slightly suboptimal way to deal with SSH2 - in
3873 * principle, the window mechanism would allow us to continue
3874 * to accept data on forwarded ports and X connections even
3875 * while the terminal processing was going slowly - but we
3876 * can't do the 100% right thing without moving the terminal
3877 * processing into a separate thread, and that might hurt
3878 * portability. So we manage stdout buffering the old SSH1 way:
3879 * if the terminal processing goes slowly, the whole SSH
3880 * connection stops accepting data until it's ready.
3882 * In practice, I can't imagine this causing serious trouble.
3887 void term_provide_logctx(Terminal
*term
, void *logctx
)
3889 term
->logctx
= logctx
;