8 #define CL_ANSIMIN 0x0001 /* Everybody has these even MSDOS */
9 #define CL_VT100 0x0002 /* VT100 */
10 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
11 #define CL_VT102 0x0008 /* VT102 */
12 #define CL_VT220 0x0010 /* VT220 */
13 #define CL_VT320 0x0020 /* VT320 */
14 #define CL_VT420 0x0040 /* VT420 */
15 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
16 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
17 #define CL_ANSI 0x1000 /* ANSI ECMA-48 not in the VT100..VT420 */
18 #define CL_OTHER 0x2000 /* Others, Xterm, linux, putty, dunno, etc */
20 #define TM_ANSIMIN (CL_ANSIMIN)
21 #define TM_VT100 (CL_ANSIMIN+CL_VT100)
22 #define TM_VT100AVO (TM_VT100+CL_VT100AVO)
23 #define TM_VT102 (TM_VT100AVO+CL_VT102)
26 #define compatibility(x) \
27 if ( ((CL_##x)&compatibility_level) == 0 ) { \
32 #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
34 static int compatibility_level
= TM_PUTTY
;
37 static unsigned long *text
; /* buffer of text on terminal screen */
38 static unsigned long *scrtop
; /* top of working screen */
39 static unsigned long *disptop
; /* top of displayed screen */
40 static unsigned long *sbtop
; /* top of scrollback */
41 static unsigned long *cpos
; /* cursor position (convenience) */
42 static unsigned long *disptext
; /* buffer of text on real screen */
43 static unsigned long *wanttext
; /* buffer of text we want on screen */
44 static unsigned long *alttext
; /* buffer of text on alt. screen */
46 static unsigned char *selspace
; /* buffer for building selections in */
48 #define TSIZE (sizeof(*text))
49 #define fix_cpos do { cpos = scrtop + curs_y * (cols+1) + curs_x; } while(0)
51 static unsigned long curr_attr
, save_attr
;
52 static unsigned long erase_char
= ERASE_CHAR
;
54 static int curs_x
, curs_y
; /* cursor */
55 static int save_x
, save_y
; /* saved cursor position */
56 static int marg_t
, marg_b
; /* scroll margins */
57 static int dec_om
; /* DEC origin mode flag */
58 static int wrap
, wrapnext
; /* wrap flags */
59 static int insert
; /* insert-mode flag */
60 static int cset
; /* 0 or 1: which char set */
61 static int save_cset
, save_csattr
; /* saved with cursor position */
62 static int rvideo
; /* global reverse video flag */
63 static int cursor_on
; /* cursor enabled flag */
64 static int reset_132
; /* Flag ESC c resets to 80 cols */
65 static int use_bce
; /* Use Background coloured erase */
66 static int blinker
; /* When blinking is the cursor on ? */
67 static int vt52_mode
; /* Is VT100+ in vt52 mode ? */
69 static unsigned long cset_attr
[2];
72 * Saved settings on the alternate screen.
74 static int alt_x
, alt_y
, alt_om
, alt_wrap
, alt_wnext
, alt_ins
, alt_cset
;
75 static int alt_t
, alt_b
;
78 #define ARGS_MAX 32 /* max # of esc sequence arguments */
79 #define ARG_DEFAULT 0 /* if an arg isn't specified */
80 #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
81 static int esc_args
[ARGS_MAX
];
84 #define ANSI(x,y) ((x)+((y)<<8))
85 #define ANSI_QUE(x) ANSI(x,TRUE)
87 #define OSC_STR_MAX 2048
88 static int osc_strlen
;
89 static char osc_string
[OSC_STR_MAX
+1];
92 static unsigned char *tabs
;
106 OSC_STRING
, OSC_MAYBE_ST
,
114 NO_SELECTION
, ABOUT_TO
, DRAGGING
, SELECTED
117 SM_CHAR
, SM_WORD
, SM_LINE
119 static unsigned long *selstart
, *selend
, *selanchor
;
121 static short wordness
[256] = {
122 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 01 */
123 0,1,2,1,1,1,1,1,1,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1, /* 23 */
124 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */
125 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1, /* 67 */
126 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 89 */
127 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* AB */
128 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* CD */
129 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2, /* EF */
132 static unsigned char sel_nl
[] = SEL_NL
;
135 * Internal prototypes.
137 static void do_paint (Context
, int);
138 static void erase_lots (int, int, int);
139 static void swap_screen (int);
140 static void update_sbar (void);
141 static void deselect (void);
144 * Set up power-on settings for the terminal.
146 static void power_on(void) {
147 curs_x
= curs_y
= alt_x
= alt_y
= save_x
= save_y
= 0;
150 alt_b
= marg_b
= rows
- 1;
155 for (i
= 0; i
< cols
; i
++)
156 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
158 alt_om
= dec_om
= cfg
.dec_om
;
159 alt_wnext
= wrapnext
= alt_ins
= insert
= FALSE
;
160 alt_wrap
= wrap
= cfg
.wrap_mode
;
162 cset_attr
[0] = cset_attr
[1] = ATTR_ASCII
;
165 save_attr
= curr_attr
= ATTR_DEFAULT
;
166 app_cursor_keys
= cfg
.app_cursor
;
167 app_keypad_keys
= cfg
.app_keypad
;
169 erase_char
= ERASE_CHAR
;
173 for (i
= 0; i
< 256; i
++)
174 wordness
[i
] = cfg
.wordness
[i
];
178 erase_lots (FALSE
, TRUE
, TRUE
);
180 erase_lots (FALSE
, TRUE
, TRUE
);
185 * Force a screen update.
187 void term_update(void) {
191 if ( (seen_key_event
&& (unscroll_event
& US_KEY
)) ||
192 (seen_disp_event
&& (unscroll_event
& US_DISP
)) ) {
194 seen_disp_event
= seen_key_event
= 0;
196 do_paint (ctx
, TRUE
);
202 * Same as power_on(), but an external function.
204 void term_pwron(void) {
213 * Clear the scrollback.
215 void term_clrsb(void) {
216 disptop
= sbtop
= scrtop
;
221 * Initialise the terminal.
223 void term_init(void) {
224 text
= sbtop
= scrtop
= disptop
= cpos
= NULL
;
225 disptext
= wanttext
= NULL
;
234 * Set up the terminal for a given size.
236 void term_size(int newrows
, int newcols
, int newsavelines
) {
237 unsigned long *newtext
, *newdisp
, *newwant
, *newalt
;
238 int i
, j
, crows
, ccols
;
240 int save_alt_which
= alt_which
;
242 if (newrows
== rows
&& newcols
== cols
&& newsavelines
== savelines
)
243 return; /* nothing to do */
249 alt_b
= marg_b
= newrows
- 1;
251 newtext
= smalloc ((newrows
+newsavelines
)*(newcols
+1)*TSIZE
);
252 disptop
= newtext
+ newsavelines
*(newcols
+1);
253 for (i
=0; i
<(newrows
+newsavelines
)*(newcols
+1); i
++)
254 newtext
[i
] = ERASE_CHAR
;
256 crows
= rows
+ (scrtop
- sbtop
) / (cols
+1);
257 if (crows
> newrows
+newsavelines
)
258 crows
= newrows
+newsavelines
;
259 ccols
= (cols
< newcols ? cols
: newcols
);
260 for (i
=0; i
<crows
; i
++) {
261 int oldidx
= (rows
+ savelines
- crows
+ i
) * (cols
+1);
262 int newidx
= (newrows
+ newsavelines
- crows
+ i
) * (newcols
+1);
263 for (j
=0; j
<ccols
; j
++)
264 newtext
[newidx
+j
] = text
[oldidx
+j
];
265 newtext
[newidx
+newcols
] =
266 (cols
== newcols ? text
[oldidx
+cols
] : 0);
268 sbtop
= disptop
- (crows
- newrows
) * (newcols
+1);
277 newdisp
= smalloc (newrows
*(newcols
+1)*TSIZE
);
278 for (i
=0; i
<newrows
*(newcols
+1); i
++)
279 newdisp
[i
] = ATTR_INVALID
;
283 newwant
= smalloc (newrows
*(newcols
+1)*TSIZE
);
284 for (i
=0; i
<newrows
*(newcols
+1); i
++)
285 newwant
[i
] = ATTR_INVALID
;
289 newalt
= smalloc (newrows
*(newcols
+1)*TSIZE
);
290 for (i
=0; i
<newrows
*(newcols
+1); i
++)
291 newalt
[i
] = erase_char
;
296 selspace
= smalloc ( (newrows
+newsavelines
) * (newcols
+sizeof(sel_nl
)) );
298 tabs
= srealloc (tabs
, newcols
*sizeof(*tabs
));
301 for (i
= (cols
> 0 ? cols
: 0); i
< newcols
; i
++)
302 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
306 curs_y
+= newrows
- rows
;
309 if (curs_y
>= newrows
)
311 if (curs_x
>= newcols
)
314 wrapnext
= alt_wnext
= FALSE
;
318 savelines
= newsavelines
;
321 swap_screen(save_alt_which
);
330 static void swap_screen (int which
) {
334 if (which
== alt_which
)
339 for (t
=0; t
<rows
*(cols
+1); t
++) {
340 tt
= scrtop
[t
]; scrtop
[t
] = alttext
[t
]; alttext
[t
] = tt
;
343 t
= curs_x
; curs_x
= alt_x
; alt_x
= t
;
344 t
= curs_y
; curs_y
= alt_y
; alt_y
= t
;
345 t
= marg_t
; marg_t
= alt_t
; alt_t
= t
;
346 t
= marg_b
; marg_b
= alt_b
; alt_b
= t
;
347 t
= dec_om
; dec_om
= alt_om
; alt_om
= t
;
348 t
= wrap
; wrap
= alt_wrap
; alt_wrap
= t
;
349 t
= wrapnext
; wrapnext
= alt_wnext
; alt_wnext
= t
;
350 t
= insert
; insert
= alt_ins
; alt_ins
= t
;
351 t
= cset
; cset
= alt_cset
; alt_cset
= t
;
357 * Retrieve a character from `inbuf'.
359 static int inbuf_getc(void) {
360 if (inbuf_head
== inbuf_reap
)
364 inbuf_reap
= (inbuf_reap
+1) & INBUF_MASK
;
370 * Update the scroll bar.
372 static void update_sbar(void) {
375 min
= (sbtop
- text
) / (cols
+1);
376 set_sbar ((scrtop
- text
) / (cols
+1) + rows
- min
,
377 (disptop
- text
) / (cols
+1) - min
,
382 * Check whether the region bounded by the two pointers intersects
383 * the scroll region, and de-select the on-screen selection if so.
385 static void check_selection (unsigned long *from
, unsigned long *to
) {
386 if (from
< selend
&& selstart
< to
)
391 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
392 * for backward.) `sb' is TRUE if the scrolling is permitted to
393 * affect the scrollback buffer.
395 static void scroll (int topline
, int botline
, int lines
, int sb
) {
396 unsigned long *scroll_top
;
397 int scroll_size
, size
, i
;
399 scroll_top
= scrtop
+ topline
*(cols
+1);
400 size
= (lines
< 0 ?
-lines
: lines
) * (cols
+1);
401 scroll_size
= (botline
- topline
+ 1) * (cols
+1) - size
;
403 if (lines
> 0 && topline
== 0 && alt_which
== 0 && sb
) {
405 * Since we're going to scroll the top line and we're on the
406 * scrolling screen let's also affect the scrollback buffer.
408 sbtop
-= lines
* (cols
+1);
411 scroll_size
+= scroll_top
- sbtop
;
416 if (scroll_size
< 0) {
423 memmove (scroll_top
, scroll_top
+ size
, scroll_size
*TSIZE
);
424 for (i
= 0; i
< size
; i
++)
425 scroll_top
[i
+scroll_size
] = erase_char
;
426 if (selstart
> scroll_top
&&
427 selstart
< scroll_top
+ size
+ scroll_size
) {
429 if (selstart
< scroll_top
)
430 selstart
= scroll_top
;
432 if (selend
> scroll_top
&&
433 selend
< scroll_top
+ size
+ scroll_size
) {
435 if (selend
< scroll_top
)
440 memmove (scroll_top
+ size
, scroll_top
, scroll_size
*TSIZE
);
441 for (i
= 0; i
< size
; i
++)
442 scroll_top
[i
] = erase_char
;
443 if (selstart
> scroll_top
&&
444 selstart
< scroll_top
+ size
+ scroll_size
) {
446 if (selstart
> scroll_top
+ size
+ scroll_size
)
447 selstart
= scroll_top
+ size
+ scroll_size
;
449 if (selend
> scroll_top
&&
450 selend
< scroll_top
+ size
+ scroll_size
) {
452 if (selend
> scroll_top
+ size
+ scroll_size
)
453 selend
= scroll_top
+ size
+ scroll_size
;
459 * Move the cursor to a given position, clipping at boundaries. We
460 * may or may not want to clip at the scroll margin: marg_clip is 0
461 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
462 * even _being_ outside the margins.
464 static void move (int x
, int y
, int marg_clip
) {
470 if ((curs_y
>= marg_t
|| marg_clip
== 2) && y
< marg_t
)
472 if ((curs_y
<= marg_b
|| marg_clip
== 2) && y
> marg_b
)
486 * Save or restore the cursor and SGR mode.
488 static void save_cursor(int save
) {
492 save_attr
= curr_attr
;
494 save_csattr
= cset_attr
[cset
];
498 curr_attr
= save_attr
;
500 cset_attr
[cset
] = save_csattr
;
502 if (use_bce
) erase_char
= (' ' |(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
507 * Erase a large portion of the screen: the whole screen, or the
508 * whole line, or parts thereof.
510 static void erase_lots (int line_only
, int from_begin
, int to_end
) {
511 unsigned long *startpos
, *endpos
;
514 startpos
= cpos
- curs_x
;
515 endpos
= startpos
+ cols
+1;
518 endpos
= startpos
+ rows
* (cols
+1);
524 check_selection (startpos
, endpos
);
526 /* Clear screen also forces a full window redraw, just in case. */
527 if (startpos
== scrtop
&& endpos
== scrtop
+ rows
* (cols
+1))
530 while (startpos
< endpos
)
531 *startpos
++ = erase_char
;
535 * Insert or delete characters within the current line. n is +ve if
536 * insertion is desired, and -ve for deletion.
538 static void insch (int n
) {
539 int dir
= (n
< 0 ?
-1 : +1);
542 n
= (n
< 0 ?
-n
: n
);
543 if (n
> cols
- curs_x
)
545 m
= cols
- curs_x
- n
;
546 check_selection (cpos
, cpos
+n
);
548 memmove (cpos
, cpos
+n
, m
*TSIZE
);
550 cpos
[m
++] = erase_char
;
552 memmove (cpos
+n
, cpos
, m
*TSIZE
);
554 cpos
[n
] = erase_char
;
559 * Toggle terminal mode `mode' to state `state'. (`query' indicates
560 * whether the mode is a DEC private one or a normal one.)
562 static void toggle_mode (int mode
, int query
, int state
) {
563 if (query
) switch (mode
) {
564 case 1: /* application cursor keys */
565 app_cursor_keys
= state
;
567 case 2: /* VT52 mode */
570 case 3: /* 80/132 columns */
572 request_resize (state ?
132 : 80, rows
, 1);
575 case 5: /* reverse video */
577 seen_disp_event
= TRUE
;
578 if (state
) term_update();
580 case 6: /* DEC origin mode */
583 case 7: /* auto wrap */
586 case 25: /* enable/disable cursor */
587 compatibility(VT220
);
589 seen_disp_event
= TRUE
;
591 case 47: /* alternate screen */
592 compatibility(OTHER
);
597 } else switch (mode
) {
598 case 4: /* set insert mode */
599 compatibility(VT102
);
602 case 12: /* set echo mode */
604 * This may be very good in smcup and rmcup (or smkx & rmkx) if you
605 * have a long RTT and the telnet client/daemon doesn't understand
608 * DONT send TS_RECHO/TS_LECHO; the telnet daemon tries to fix the
609 * tty and _really_ confuses some programs.
611 compatibility(VT220
);
612 ldisc
= (state?
&ldisc_simple
: &ldisc_term
);
618 * Process an OSC sequence: set window title or icon name.
620 static void do_osc(void) {
623 wordness
[(unsigned char)osc_string
[osc_strlen
]] = esc_args
[0];
625 osc_string
[osc_strlen
] = '\0';
626 switch (esc_args
[0]) {
629 set_icon (osc_string
);
630 if (esc_args
[0] == 1)
632 /* fall through: parameter 0 means set both */
635 set_title (osc_string
);
642 * Remove everything currently in `inbuf' and stick it up on the
643 * in-memory display. There's a big state machine in here to
644 * process escape sequences...
646 void term_out(void) {
649 while ( (c
= inbuf_getc()) != -1) {
651 * Optionally log the session traffic to a file. Useful for
652 * debugging and possibly also useful for actual logging.
655 static FILE *fp
= NULL
;
656 if (!fp
) fp
= fopen(logfile
, "wb");
657 if (fp
) fputc (c
, fp
);
659 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
660 * be able to display 8-bit characters, but I'll let that go 'cause
663 if( (c
&0x60) == 0 && termstate
< DO_CTRLS
&&
664 ( (c
&0x80) == 0 || has_compat(VT220
))) {
666 case '\005': /* terminal type query */
667 /* Strictly speaking this is VT100 but a VT100 defaults to
668 * no response. Other terminals respond at their option.
670 * Don't put a CR in the default string as this tends to
671 * upset some weird software.
673 * An xterm returns "xterm" (5 characters)
675 compatibility(OTHER
);
676 ldisc
->send ("PuTTY", 5);
683 if (curs_x
== 0 && curs_y
> 0)
684 curs_x
= cols
-1, curs_y
--;
690 seen_disp_event
= TRUE
;
693 compatibility(VT100
);
697 compatibility(VT100
);
702 termstate
= VT52_ESC
;
704 compatibility(ANSIMIN
);
705 termstate
= SEEN_ESC
;
709 compatibility(VT220
);
710 termstate
= SEEN_CSI
;
712 esc_args
[0] = ARG_DEFAULT
;
716 compatibility(VT220
);
717 termstate
= SEEN_OSC
;
724 seen_disp_event
= TRUE
;
728 compatibility(VT100
);
730 if (curs_y
== marg_b
)
731 scroll (marg_t
, marg_b
, 1, TRUE
);
732 else if (curs_y
< rows
-1)
743 } while (curs_x
< cols
-1 && !tabs
[curs_x
]);
747 unsigned long *old_cpos
= cpos
;
749 check_selection (old_cpos
, cpos
);
751 seen_disp_event
= TRUE
;
755 else switch (termstate
) {
757 /* Only graphic characters get this far, ctrls are stripped above */
759 cpos
[1] = ATTR_WRAPPED
;
760 if (curs_y
== marg_b
)
761 scroll (marg_t
, marg_b
, 1, TRUE
);
762 else if (curs_y
< rows
-1)
770 if (selstate
!= NO_SELECTION
)
771 check_selection (cpos
, cpos
+1);
772 switch (cset_attr
[cset
]) {
773 /* Linedraw characters are different from 'ESC ( B' only
774 * for a small range, for ones outside that range make sure
775 * we use the same font as well as the same encoding.
778 if (c
<0x60 || c
>0x7F)
779 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
782 *cpos
++ = ((unsigned char)c
) | curr_attr
| ATTR_LINEDRW
;
785 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
786 (c
<= 0x7F ? cset_attr
[cset
] : ATTR_ASCII
);
790 if (curs_x
== cols
) {
799 termstate
= TOPLEVEL
;
803 * This state is virtually identical to SEEN_ESC, with the
804 * exception that we have an OSC sequence in the pipeline,
805 * and _if_ we see a backslash, we process it.
809 termstate
= TOPLEVEL
;
812 /* else fall through */
814 termstate
= TOPLEVEL
;
816 case ' ': /* some weird sequence? */
817 compatibility(VT220
);
818 termstate
= IGNORE_NEXT
;
820 case '[': /* enter CSI mode */
821 termstate
= SEEN_CSI
;
823 esc_args
[0] = ARG_DEFAULT
;
826 case ']': /* xterm escape sequences */
827 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
828 compatibility(OTHER
);
829 termstate
= SEEN_OSC
;
832 case '(': /* should set GL */
833 compatibility(VT100
);
836 case ')': /* should set GR */
837 compatibility(VT100
);
840 case '7': /* save cursor */
841 compatibility(VT100
);
844 case '8': /* restore cursor */
845 compatibility(VT100
);
847 seen_disp_event
= TRUE
;
850 compatibility(VT100
);
851 app_keypad_keys
= TRUE
;
854 compatibility(VT100
);
855 app_keypad_keys
= FALSE
;
857 case 'D': /* exactly equivalent to LF */
858 compatibility(VT100
);
859 if (curs_y
== marg_b
)
860 scroll (marg_t
, marg_b
, 1, TRUE
);
861 else if (curs_y
< rows
-1)
865 seen_disp_event
= TRUE
;
867 case 'E': /* exactly equivalent to CR-LF */
868 compatibility(VT100
);
871 if (curs_y
== marg_b
)
872 scroll (marg_t
, marg_b
, 1, TRUE
);
873 else if (curs_y
< rows
-1)
877 seen_disp_event
= TRUE
;
879 case 'M': /* reverse index - backwards LF */
880 compatibility(VT100
);
881 if (curs_y
== marg_t
)
882 scroll (marg_t
, marg_b
, -1, TRUE
);
887 seen_disp_event
= TRUE
;
889 case 'Z': /* terminal type query */
890 compatibility(VT100
);
891 ldisc
->send ("\033[?6c", 5);
893 case 'c': /* restore power-on settings */
894 compatibility(VT100
);
897 request_resize (80, rows
, 1);
902 seen_disp_event
= TRUE
;
904 case '#': /* ESC # 8 fills screen with Es :-) */
905 compatibility(VT100
);
906 termstate
= SEEN_ESCHASH
;
908 case 'H': /* set a tab */
909 compatibility(VT100
);
915 termstate
= TOPLEVEL
; /* default */
918 if (esc_nargs
<= ARGS_MAX
) {
919 if (esc_args
[esc_nargs
-1] == ARG_DEFAULT
)
920 esc_args
[esc_nargs
-1] = 0;
921 esc_args
[esc_nargs
-1] =
922 10 * esc_args
[esc_nargs
-1] + c
- '0';
924 termstate
= SEEN_CSI
;
928 if (++esc_nargs
<= ARGS_MAX
)
929 esc_args
[esc_nargs
-1] = ARG_DEFAULT
;
930 termstate
= SEEN_CSI
;
934 if( esc_query
) esc_query
= -1;
935 else if( c
== '?' ) esc_query
= TRUE
;
937 termstate
= SEEN_CSI
;
939 else switch (ANSI(c
,esc_query
)) {
940 case 'A': /* move up N lines */
941 move (curs_x
, curs_y
- def(esc_args
[0], 1), 1);
942 seen_disp_event
= TRUE
;
944 case 'e': /* move down N lines */
947 move (curs_x
, curs_y
+ def(esc_args
[0], 1), 1);
948 seen_disp_event
= TRUE
;
950 case 'a': /* move right N cols */
953 move (curs_x
+ def(esc_args
[0], 1), curs_y
, 1);
954 seen_disp_event
= TRUE
;
956 case 'D': /* move left N cols */
957 move (curs_x
- def(esc_args
[0], 1), curs_y
, 1);
958 seen_disp_event
= TRUE
;
960 case 'E': /* move down N lines and CR */
962 move (0, curs_y
+ def(esc_args
[0], 1), 1);
963 seen_disp_event
= TRUE
;
965 case 'F': /* move up N lines and CR */
967 move (0, curs_y
- def(esc_args
[0], 1), 1);
968 seen_disp_event
= TRUE
;
970 case 'G': case '`': /* set horizontal posn */
972 move (def(esc_args
[0], 1) - 1, curs_y
, 0);
973 seen_disp_event
= TRUE
;
975 case 'd': /* set vertical posn */
977 move (curs_x
, (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
979 seen_disp_event
= TRUE
;
981 case 'H': case 'f': /* set horz and vert posns at once */
983 esc_args
[1] = ARG_DEFAULT
;
984 move (def(esc_args
[1], 1) - 1,
985 (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
987 seen_disp_event
= TRUE
;
989 case 'J': /* erase screen or parts of it */
991 unsigned int i
= def(esc_args
[0], 0) + 1;
994 erase_lots(FALSE
, !!(i
& 2), !!(i
& 1));
997 seen_disp_event
= TRUE
;
999 case 'K': /* erase line or parts of it */
1001 unsigned int i
= def(esc_args
[0], 0) + 1;
1004 erase_lots(TRUE
, !!(i
& 2), !!(i
& 1));
1006 seen_disp_event
= TRUE
;
1008 case 'L': /* insert lines */
1009 compatibility(VT102
);
1010 if (curs_y
<= marg_b
)
1011 scroll (curs_y
, marg_b
, -def(esc_args
[0], 1), FALSE
);
1012 seen_disp_event
= TRUE
;
1014 case 'M': /* delete lines */
1015 compatibility(VT102
);
1016 if (curs_y
<= marg_b
)
1017 scroll (curs_y
, marg_b
, def(esc_args
[0], 1), TRUE
);
1018 seen_disp_event
= TRUE
;
1020 case '@': /* insert chars */
1021 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1022 compatibility(VT102
);
1023 insch (def(esc_args
[0], 1));
1024 seen_disp_event
= TRUE
;
1026 case 'P': /* delete chars */
1027 compatibility(VT102
);
1028 insch (-def(esc_args
[0], 1));
1029 seen_disp_event
= TRUE
;
1031 case 'c': /* terminal type query */
1032 compatibility(VT100
);
1033 /* This is the response for a VT102 */
1034 ldisc
->send ("\033[?6c", 5);
1036 case 'n': /* cursor position query */
1037 if (esc_args
[0] == 6) {
1038 /* Wonder of wonders ANSI.SYS has this!! */
1040 sprintf (buf
, "\033[%d;%dR", curs_y
+ 1, curs_x
+ 1);
1041 ldisc
->send (buf
, strlen(buf
));
1043 else if (esc_args
[0] == 5) {
1044 /* Are we working ... well I suppose so :-) */
1045 /* But ANSI.SYS doesn't say it's working :-) :-) */
1046 compatibility(VT100
);
1047 ldisc
->send ("\033[0n", 4);
1050 case 'h': /* toggle modes to high */
1052 compatibility(VT100
);
1055 for (i
=0; i
<esc_nargs
; i
++)
1056 toggle_mode (esc_args
[i
], esc_query
, TRUE
);
1059 case 'l': /* toggle modes to low */
1061 compatibility(VT100
);
1064 for (i
=0; i
<esc_nargs
; i
++)
1065 toggle_mode (esc_args
[i
], esc_query
, FALSE
);
1068 case 'g': /* clear tabs */
1069 compatibility(VT100
);
1070 if (esc_nargs
== 1) {
1071 if (esc_args
[0] == 0) {
1072 tabs
[curs_x
] = FALSE
;
1073 } else if (esc_args
[0] == 3) {
1075 for (i
= 0; i
< cols
; i
++)
1080 case 'r': /* set scroll margins */
1081 compatibility(VT100
);
1082 if (esc_nargs
<= 2) {
1084 /* VTTEST Bug 9 if the first arg is default _or_ zero
1085 * this is a full screen region irrespective of 2nd arg.
1087 if (esc_args
[0] <= 0) {
1091 top
= def(esc_args
[0], 1) - 1;
1092 bot
= (esc_nargs
<= 1 || esc_args
[1] == 0 ? rows
:
1093 def(esc_args
[1], rows
)) - 1;
1102 * I used to think the cursor should be
1103 * placed at the top of the newly marginned
1104 * area. Apparently not: VMS TPU falls over
1107 * Well actually it should for Origin mode - RDB
1109 curs_y
= (dec_om ? marg_t
: 0);
1111 seen_disp_event
= TRUE
;
1115 case 'm': /* set graphics rendition */
1118 * A VT100 without the AVO only had one attribute, either
1119 * underline or reverse video depending on the cursor type,
1120 * this was selected by CSI 7m.
1123 * This is DIM on the VT100-AVO and VT102
1125 * This is BLINK on the VT100-AVO and VT102+
1127 * This is INVIS on the VT100-AVO and VT102
1129 * This like 22 disables BOLD, DIM and INVIS
1131 * The ANSI colours appear on any terminal that has colour
1132 * (obviously) but the interaction between sgr0 and the
1133 * colours varies but is usually related to the background
1134 * colour erase item.
1135 * The interaction between colour attributes and the mono
1136 * ones is also very implementation dependent.
1138 * The 39 and 49 attributes are likely to be unimplemented.
1141 for (i
=0; i
<esc_nargs
; i
++) {
1142 switch (def(esc_args
[i
], 0)) {
1143 case 0: /* restore defaults */
1144 curr_attr
= ATTR_DEFAULT
; break;
1145 case 1: /* enable bold */
1146 compatibility(VT100AVO
);
1147 curr_attr
|= ATTR_BOLD
; break;
1148 case 21: /* (enable double underline) */
1149 compatibility(OTHER
);
1150 case 4: /* enable underline */
1151 compatibility(VT100AVO
);
1152 curr_attr
|= ATTR_UNDER
; break;
1153 case 5: /* enable blink */
1154 compatibility(VT100AVO
);
1155 curr_attr
|= ATTR_BLINK
; break;
1156 case 7: /* enable reverse video */
1157 curr_attr
|= ATTR_REVERSE
; break;
1158 case 22: /* disable bold */
1159 compatibility(VT220
);
1160 curr_attr
&= ~ATTR_BOLD
; break;
1161 case 24: /* disable underline */
1162 compatibility(VT220
);
1163 curr_attr
&= ~ATTR_UNDER
; break;
1164 case 25: /* disable blink */
1165 compatibility(VT220
);
1166 curr_attr
&= ~ATTR_BLINK
; break;
1167 case 27: /* disable reverse video */
1168 compatibility(VT220
);
1169 curr_attr
&= ~ATTR_REVERSE
; break;
1170 case 30: case 31: case 32: case 33:
1171 case 34: case 35: case 36: case 37:
1173 curr_attr
&= ~ATTR_FGMASK
;
1174 curr_attr
|= (esc_args
[i
] - 30) << ATTR_FGSHIFT
;
1176 case 39: /* default-foreground */
1177 curr_attr
&= ~ATTR_FGMASK
;
1178 curr_attr
|= ATTR_DEFFG
;
1180 case 40: case 41: case 42: case 43:
1181 case 44: case 45: case 46: case 47:
1183 curr_attr
&= ~ATTR_BGMASK
;
1184 curr_attr
|= (esc_args
[i
] - 40) << ATTR_BGSHIFT
;
1186 case 49: /* default-background */
1187 curr_attr
&= ~ATTR_BGMASK
;
1188 curr_attr
|= ATTR_DEFBG
;
1193 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1196 case 's': /* save cursor */
1199 case 'u': /* restore cursor */
1200 save_cursor (FALSE
);
1201 seen_disp_event
= TRUE
;
1203 case 't': /* set page size - ie window height */
1205 * VT340/VT420 sequence DECSLPP, DEC only allows values
1206 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1207 * illegal values (eg first arg 1..9) for window changing
1210 compatibility(VT340TEXT
);
1211 if (esc_nargs
<=1 && (esc_args
[0]<1 || esc_args
[0]>=24)) {
1212 request_resize (cols
, def(esc_args
[0], 24), 0);
1216 case ANSI('|', '*'):
1217 /* VT420 sequence DECSNLS
1218 * Set number of lines on screen
1219 * VT420 uses VGA like hardware and can support any size in
1220 * reasonable range (24..49 AIUI) with no default specified.
1222 compatibility(VT420
);
1223 if (esc_nargs
==1 && esc_args
[0]>=24) {
1224 request_resize (cols
, def(esc_args
[0], cfg
.height
), 0);
1228 case ANSI('|', '$'):
1229 /* VT340/VT420 sequence DECSCPP
1230 * Set number of columns per page
1231 * Docs imply range is only 80 or 132, but I'll allow any.
1233 compatibility(VT340TEXT
);
1235 request_resize (cols
, def(esc_args
[0], cfg
.width
), 0);
1239 case 'X': /* write N spaces w/o moving cursor */
1240 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1241 compatibility(VT100
);
1243 int n
= def(esc_args
[0], 1);
1244 unsigned long *p
= cpos
;
1245 if (n
> cols
- curs_x
)
1247 check_selection (cpos
, cpos
+n
);
1250 seen_disp_event
= TRUE
;
1253 case 'x': /* report terminal characteristics */
1254 compatibility(VT100
);
1257 int i
= def(esc_args
[0], 0);
1258 if (i
== 0 || i
== 1) {
1259 strcpy (buf
, "\033[2;1;1;112;112;1;0x");
1261 ldisc
->send (buf
, 20);
1266 compatibility(OTHER
);
1267 use_bce
= (esc_args
[0]<=0);
1268 erase_char
= ERASE_CHAR
;
1270 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1273 /* Allow the host to make this emulator a 'perfect' VT102.
1274 * This first appeared in the VT220, but we do need to get
1275 * back to PuTTY mode so I won't check it.
1277 * The arg == 60 is a PuTTY extension.
1278 * The 2nd arg, 8bit vs 7bit is not obeyed.
1280 * Setting VT102 mode should also change the Fkeys to
1281 * generate PF* codes as a real VT102 has no Fkeys.
1282 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1285 * Note ESC c will NOT change this!
1288 if (esc_args
[0] == 61) compatibility_level
= TM_VT102
;
1289 else if (esc_args
[0] == 60) compatibility_level
= TM_ANSIMIN
;
1290 else compatibility_level
= TM_PUTTY
;
1296 /* VT100 only here, checked above */
1299 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_GBCHR
;
1302 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_LINEDRW
;
1305 default: /* specifically, 'B' */
1306 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_ASCII
;
1309 if( !has_compat(VT220
) || c
!= '%' )
1310 termstate
= TOPLEVEL
;
1315 case 'P': /* Linux palette sequence */
1316 termstate
= SEEN_OSC_P
;
1319 case 'R': /* Linux palette reset */
1322 termstate
= TOPLEVEL
;
1324 case 'W': /* word-set */
1325 termstate
= SEEN_OSC_W
;
1328 case '0': case '1': case '2': case '3': case '4':
1329 case '5': case '6': case '7': case '8': case '9':
1330 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1334 * Grotty hack to support xterm and DECterm title
1335 * sequences concurrently.
1337 if (esc_args
[0] == 2) {
1341 /* else fall through */
1343 termstate
= OSC_STRING
;
1349 * This OSC stuff is EVIL. It takes just one character to get into
1350 * sysline mode and it's not initially obvious how to get out.
1351 * So I've added CR and LF as string aborts.
1352 * This shouldn't effect compatibility as I believe embedded
1353 * control characters are supposed to be interpreted (maybe?)
1354 * and they don't display anything useful anyway.
1358 if (c
== '\n' || c
== '\r') {
1359 termstate
= TOPLEVEL
;
1360 } else if (c
== 0234 || c
== '\007' ) {
1362 * These characters terminate the string; ST and BEL
1363 * terminate the sequence and trigger instant
1364 * processing of it, whereas ESC goes back to SEEN_ESC
1365 * mode unless it is followed by \, in which case it is
1366 * synonymous with ST in the first place.
1369 termstate
= TOPLEVEL
;
1370 } else if (c
== '\033')
1371 termstate
= OSC_MAYBE_ST
;
1372 else if (osc_strlen
< OSC_STR_MAX
)
1373 osc_string
[osc_strlen
++] = c
;
1377 int max
= (osc_strlen
== 0 ?
21 : 16);
1379 if (c
>= '0' && c
<= '9')
1381 else if (c
>= 'A' && c
<= 'A'+max
-10)
1383 else if (c
>= 'a' && c
<= 'a'+max
-10)
1386 termstate
= TOPLEVEL
;
1387 osc_string
[osc_strlen
++] = val
;
1388 if (osc_strlen
>= 7) {
1389 palette_set (osc_string
[0],
1390 osc_string
[1] * 16 + osc_string
[2],
1391 osc_string
[3] * 16 + osc_string
[4],
1392 osc_string
[5] * 16 + osc_string
[6]);
1394 termstate
= TOPLEVEL
;
1400 case '0': case '1': case '2': case '3': case '4':
1401 case '5': case '6': case '7': case '8': case '9':
1402 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1405 termstate
= OSC_STRING
;
1411 unsigned long *p
= scrtop
;
1412 int n
= rows
* (cols
+1);
1414 *p
++ = ATTR_DEFAULT
| 'E';
1416 seen_disp_event
= TRUE
;
1417 check_selection (scrtop
, scrtop
+ rows
* (cols
+1));
1419 termstate
= TOPLEVEL
;
1422 termstate
= TOPLEVEL
;
1423 seen_disp_event
= TRUE
;
1426 move (curs_x
, curs_y
- 1, 1);
1429 move (curs_x
, curs_y
+ 1, 1);
1432 move (curs_x
+ 1, curs_y
, 1);
1435 move (curs_x
- 1, curs_y
, 1);
1438 cset_attr
[cset
=0] = ATTR_LINEDRW
;
1441 cset_attr
[cset
=0] = ATTR_ASCII
;
1448 scroll (0, rows
-1, -1, TRUE
);
1449 else if (curs_y
> 0)
1455 erase_lots(FALSE
, FALSE
, TRUE
);
1459 erase_lots(TRUE
, FALSE
, TRUE
);
1462 /* XXX Print cursor line */
1465 /* XXX Start controller mode */
1468 /* XXX Stop controller mode */
1471 termstate
= VT52_Y1
;
1474 ldisc
->send ("\033/Z", 3);
1477 app_cursor_keys
= TRUE
;
1480 app_cursor_keys
= FALSE
;
1483 /* XXX This should switch to VT100 mode not current or default
1484 * VT mode. But this will only have effect in a VT220+
1490 /* XXX Enter auto print mode */
1493 /* XXX Exit auto print mode */
1496 /* XXX Print screen */
1501 termstate
= VT52_Y2
;
1502 move(curs_x
, c
-' ', 0);
1505 termstate
= TOPLEVEL
;
1506 move(c
-' ', curs_y
, 0);
1509 if (selstate
!= NO_SELECTION
)
1510 check_selection (cpos
, cpos
+1);
1515 * Compare two lines to determine whether they are sufficiently
1516 * alike to scroll-optimise one to the other. Return the degree of
1519 static int linecmp (unsigned long *a
, unsigned long *b
) {
1522 for (i
=n
=0; i
< cols
; i
++)
1523 n
+= (*a
++ == *b
++);
1528 * Given a context, update the window. Out of paranoia, we don't
1529 * allow WM_PAINT responses to do scrolling optimisations.
1531 static void do_paint (Context ctx
, int may_optimise
){
1532 int i
, j
, start
, our_curs_y
;
1533 unsigned long attr
, rv
, cursor
;
1538 if (blinker
|| !cfg
.blink_cur
)
1539 cursor
= ATTR_ACTCURS
;
1544 cursor
= ATTR_PASCURS
;
1547 rv
= (rvideo ? ATTR_REVERSE
: 0);
1548 our_curs_y
= curs_y
+ (scrtop
- disptop
) / (cols
+1);
1550 for (i
=0; i
<rows
; i
++) {
1551 int idx
= i
*(cols
+1);
1552 for (j
=0; j
<=cols
; j
++,idx
++) {
1553 unsigned long *d
= disptop
+idx
;
1554 wanttext
[idx
] = ((*d
^ rv
1555 ^ (selstart
<= d
&& d
< selend ?
1556 ATTR_REVERSE
: 0)) |
1557 (i
==our_curs_y
&& j
==curs_x ? cursor
: 0));
1562 * We would perform scrolling optimisations in here, if they
1563 * didn't have a nasty tendency to cause the whole sodding
1564 * program to hang for a second at speed-critical moments.
1565 * We'll leave it well alone...
1568 for (i
=0; i
<rows
; i
++) {
1569 int idx
= i
*(cols
+1);
1571 for (j
=0; j
<=cols
; j
++,idx
++) {
1572 unsigned long t
= wanttext
[idx
];
1573 int needs_update
= (j
< cols
&& t
!= disptext
[idx
]);
1574 int keep_going
= (start
!= -1 && needs_update
&&
1575 (t
& ATTR_MASK
) == attr
&&
1576 j
-start
< sizeof(ch
));
1577 if (start
!= -1 && !keep_going
) {
1578 do_text (ctx
, start
, i
, ch
, j
-start
, attr
);
1584 attr
= t
& ATTR_MASK
;
1586 ch
[j
-start
] = (char) (t
& CHAR_MASK
);
1594 * Flick the switch that says if blinking things should be shown or hidden.
1597 void term_blink(int flg
) {
1598 static long last_blink
= 0;
1599 long now
, blink_diff
;
1603 last_blink
= GetTickCount();
1606 now
= GetTickCount();
1608 blink_diff
= now
-last_blink
;
1610 /* Make sure the cursor blinks no more than 2Hz */
1611 if (blink_diff
>=0 && blink_diff
<450)
1619 * Invalidate the whole screen so it will be repainted in full.
1621 void term_invalidate(void) {
1624 for (i
=0; i
<rows
*(cols
+1); i
++)
1625 disptext
[i
] = ATTR_INVALID
;
1629 * Paint the window in response to a WM_PAINT message.
1631 void term_paint (Context ctx
, int l
, int t
, int r
, int b
) {
1632 int i
, j
, left
, top
, right
, bottom
;
1634 left
= l
/ font_width
;
1635 right
= (r
- 1) / font_width
;
1636 top
= t
/ font_height
;
1637 bottom
= (b
- 1) / font_height
;
1638 for (i
= top
; i
<= bottom
&& i
< rows
; i
++)
1639 for (j
= left
; j
<= right
&& j
< cols
; j
++)
1640 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
1642 /* This should happen soon enough, also for some reason it sometimes
1643 * fails to actually do anything when re-sizing ... painting the wrong
1645 do_paint (ctx, FALSE);
1650 * Attempt to scroll the scrollback. The second parameter gives the
1651 * position we want to scroll to; the first is +1 to denote that
1652 * this position is relative to the beginning of the scrollback, -1
1653 * to denote it is relative to the end, and 0 to denote that it is
1654 * relative to the current position.
1656 void term_scroll (int rel
, int where
) {
1657 int n
= where
* (cols
+1);
1659 disptop
= (rel
< 0 ? scrtop
:
1660 rel
> 0 ? sbtop
: disptop
) + n
;
1661 if (disptop
< sbtop
)
1663 if (disptop
> scrtop
)
1670 * Spread the selection outwards according to the selection mode.
1672 static unsigned long *sel_spread_half (unsigned long *p
, int dir
) {
1673 unsigned long *linestart
, *lineend
;
1677 x
= (p
- text
) % (cols
+1);
1679 lineend
= linestart
+ cols
;
1684 * In this mode, every character is a separate unit, except
1685 * for runs of spaces at the end of a non-wrapping line.
1687 if (!(linestart
[cols
] & ATTR_WRAPPED
)) {
1688 unsigned long *q
= lineend
;
1689 while (q
> linestart
&& (q
[-1] & CHAR_MASK
) == 0x20)
1694 p
= (dir
== -1 ? q
: lineend
- 1);
1699 * In this mode, the units are maximal runs of characters
1700 * whose `wordness' has the same value.
1702 wvalue
= wordness
[*p
& CHAR_MASK
];
1704 while (p
< lineend
&& wordness
[p
[1] & CHAR_MASK
] == wvalue
)
1707 while (p
> linestart
&& wordness
[p
[-1] & CHAR_MASK
] == wvalue
)
1713 * In this mode, every line is a unit.
1715 p
= (dir
== -1 ? linestart
: lineend
- 1);
1721 static void sel_spread (void) {
1722 selstart
= sel_spread_half (selstart
, -1);
1723 selend
= sel_spread_half (selend
- 1, +1) + 1;
1726 void term_mouse (Mouse_Button b
, Mouse_Action a
, int x
, int y
) {
1727 unsigned long *selpoint
;
1730 if (y
>=rows
) y
= rows
-1;
1738 if (x
>=cols
) x
= cols
-1;
1740 selpoint
= disptop
+ y
* (cols
+1) + x
;
1742 if (b
== MB_SELECT
&& a
== MA_CLICK
) {
1744 selstate
= ABOUT_TO
;
1745 selanchor
= selpoint
;
1747 } else if (b
== MB_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
1749 selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
1750 selstate
= DRAGGING
;
1751 selstart
= selanchor
= selpoint
;
1752 selend
= selstart
+ 1;
1754 } else if ((b
== MB_SELECT
&& a
== MA_DRAG
) ||
1755 (b
== MB_EXTEND
&& a
!= MA_RELEASE
)) {
1756 if (selstate
== ABOUT_TO
&& selanchor
== selpoint
)
1758 if (b
== MB_EXTEND
&& a
!= MA_DRAG
&& selstate
== SELECTED
) {
1759 if (selpoint
-selstart
< (selend
-selstart
)/2)
1760 selanchor
= selend
- 1;
1762 selanchor
= selstart
;
1763 selstate
= DRAGGING
;
1765 if (selstate
!= ABOUT_TO
&& selstate
!= DRAGGING
)
1766 selanchor
= selpoint
;
1767 selstate
= DRAGGING
;
1768 if (selpoint
< selanchor
) {
1769 selstart
= selpoint
;
1770 selend
= selanchor
+ 1;
1772 selstart
= selanchor
;
1773 selend
= selpoint
+ 1;
1776 } else if ((b
== MB_SELECT
|| b
== MB_EXTEND
) && a
== MA_RELEASE
) {
1777 if (selstate
== DRAGGING
) {
1779 * We've completed a selection. We now transfer the
1780 * data to the clipboard.
1782 unsigned char *p
= selspace
;
1783 unsigned long *q
= selstart
;
1785 while (q
< selend
) {
1787 unsigned long *lineend
= q
- (q
-text
) % (cols
+1) + cols
;
1788 unsigned long *nlpos
= lineend
;
1790 if (!(*nlpos
& ATTR_WRAPPED
)) {
1791 while ((nlpos
[-1] & CHAR_MASK
) == 0x20 && nlpos
> q
)
1796 while (q
< nlpos
&& q
< selend
)
1797 *p
++ = (unsigned char) (*q
++ & CHAR_MASK
);
1800 for (i
=0; i
<sizeof(sel_nl
); i
++)
1803 q
= lineend
+ 1; /* start of next line */
1805 write_clip (selspace
, p
- selspace
);
1806 selstate
= SELECTED
;
1808 selstate
= NO_SELECTION
;
1809 } else if (b
== MB_PASTE
&& (a
==MA_CLICK
|| a
==MA_2CLK
|| a
==MA_3CLK
)) {
1813 get_clip((void **) &data
, &len
);
1817 while (p
< data
+len
) {
1818 while (p
< data
+len
&&
1819 !(p
<= data
+len
-sizeof(sel_nl
) &&
1820 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
1828 c
=xlat_kbd2tty(q
[i
]);
1833 if (p
<= data
+len
-sizeof(sel_nl
) &&
1834 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
1835 ldisc
->send ("\r", 1);
1836 p
+= sizeof(sel_nl
);
1841 get_clip(NULL
, NULL
);
1847 static void deselect (void) {
1848 selstate
= NO_SELECTION
;
1849 selstart
= selend
= scrtop
;
1852 void term_deselect (void) {