0d5398e33e02ae9f2eb5d3a5b2b887d1e9ddfb7b
12 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
13 #define CL_VT100 0x0002 /* VT100 */
14 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
15 #define CL_VT102 0x0008 /* VT102 */
16 #define CL_VT220 0x0010 /* VT220 */
17 #define CL_VT320 0x0020 /* VT320 */
18 #define CL_VT420 0x0040 /* VT420 */
19 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
20 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
21 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
22 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
23 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
25 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
26 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
27 #define TM_VT102 (TM_VT100AVO|CL_VT102)
28 #define TM_VT220 (TM_VT102|CL_VT220)
29 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
30 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
32 #define TM_PUTTY (0xFFFF)
34 #define compatibility(x) \
35 if ( ((CL_##x)&compatibility_level) == 0 ) { \
39 #define compatibility2(x,y) \
40 if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \
45 #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
47 static int compatibility_level
= TM_PUTTY
;
49 static tree234
*scrollback
; /* lines scrolled off top of screen */
50 static tree234
*screen
; /* lines on primary screen */
51 static tree234
*alt_screen
; /* lines on alternate screen */
52 static int disptop
; /* distance scrolled back (0 or -ve) */
54 static unsigned long *cpos
; /* cursor position (convenience) */
56 static unsigned long *disptext
; /* buffer of text on real screen */
57 static unsigned long *wanttext
; /* buffer of text we want on screen */
59 #define VBELL_TIMEOUT 100 /* millisecond len of visual bell */
62 struct beeptime
*next
;
65 static struct beeptime
*beephead
, *beeptail
;
70 static unsigned char *selspace
; /* buffer for building selections in */
72 #define TSIZE (sizeof(unsigned long))
73 #define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0)
75 static unsigned long curr_attr
, save_attr
;
76 static unsigned long erase_char
= ERASE_CHAR
;
81 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
82 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
83 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
84 #define posdiff(p1,p2) ( ((p2).y - (p1).y) * (cols+1) + (p2).x - (p1).x )
85 #define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
86 #define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) )
88 static pos curs
; /* cursor */
89 static pos savecurs
; /* saved cursor position */
90 static int marg_t
, marg_b
; /* scroll margins */
91 static int dec_om
; /* DEC origin mode flag */
92 static int wrap
, wrapnext
; /* wrap flags */
93 static int insert
; /* insert-mode flag */
94 static int cset
; /* 0 or 1: which char set */
95 static int save_cset
, save_csattr
; /* saved with cursor position */
96 static int rvideo
; /* global reverse video flag */
97 static int rvbell_timeout
; /* for ESC[?5hESC[?5l vbell */
98 static int cursor_on
; /* cursor enabled flag */
99 static int reset_132
; /* Flag ESC c resets to 80 cols */
100 static int use_bce
; /* Use Background coloured erase */
101 static int blinker
; /* When blinking is the cursor on ? */
102 static int tblinker
; /* When the blinking text is on */
103 static int blink_is_real
; /* Actually blink blinking text */
104 static int term_echoing
; /* Does terminal want local echo? */
105 static int term_editing
; /* Does terminal want local edit? */
107 static unsigned long cset_attr
[2];
110 * Saved settings on the alternate screen.
112 static int alt_x
, alt_y
, alt_om
, alt_wrap
, alt_wnext
, alt_ins
, alt_cset
;
113 static int alt_t
, alt_b
;
114 static int alt_which
;
116 #define ARGS_MAX 32 /* max # of esc sequence arguments */
117 #define ARG_DEFAULT 0 /* if an arg isn't specified */
118 #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
119 static int esc_args
[ARGS_MAX
];
120 static int esc_nargs
;
121 static int esc_query
;
122 #define ANSI(x,y) ((x)+((y)<<8))
123 #define ANSI_QUE(x) ANSI(x,TRUE)
125 #define OSC_STR_MAX 2048
126 static int osc_strlen
;
127 static char osc_string
[OSC_STR_MAX
+1];
130 static char id_string
[1024] = "\033[?6c";
132 static unsigned char *tabs
;
146 OSC_STRING
, OSC_MAYBE_ST
,
154 NO_SELECTION
, ABOUT_TO
, DRAGGING
, SELECTED
157 SM_CHAR
, SM_WORD
, SM_LINE
159 static pos selstart
, selend
, selanchor
;
161 static short wordness
[256] = {
162 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 */
163 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 */
164 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 */
165 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 */
166 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 */
167 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 */
168 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 */
169 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 */
172 static unsigned char sel_nl
[] = SEL_NL
;
173 static char * paste_buffer
= 0;
174 static int paste_len
, paste_pos
, paste_hold
;
177 * Internal prototypes.
179 static void do_paint (Context
, int);
180 static void erase_lots (int, int, int);
181 static void swap_screen (int);
182 static void update_sbar (void);
183 static void deselect (void);
184 /* log session to file stuff ... */
185 static FILE *lgfp
= NULL
;
186 static void logtraffic(unsigned char c
, int logmode
);
189 * Retrieve a line of the screen or of the scrollback, according to
190 * whether the y coordinate is non-negative or negative
193 unsigned long *lineptr(int y
, int lineno
) {
194 unsigned long *line
, lineattrs
;
196 int i
, treeindex
, oldlen
;
202 whichtree
= scrollback
;
203 treeindex
= y
+ count234(scrollback
);
205 line
= index234(whichtree
, treeindex
);
207 /* We assume that we don't screw up and retrieve something out of range. */
208 assert(line
!= NULL
);
210 if (line
[0] != cols
) {
212 * This line is the wrong length, which probably means it
213 * hasn't been accessed since a resize. Resize it now.
216 lineattrs
= line
[oldlen
+1];
217 delpos234(whichtree
, treeindex
);
218 line
= srealloc(line
, TSIZE
* (2+cols
));
220 for (i
= oldlen
; i
< cols
; i
++)
221 line
[i
+1] = ERASE_CHAR
;
222 line
[cols
+1] = lineattrs
& LATTR_MODE
;
223 addpos234(whichtree
, line
, treeindex
);
228 #define lineptr(x) lineptr(x,__LINE__)
230 * Set up power-on settings for the terminal.
232 static void power_on(void) {
233 curs
.x
= curs
.y
= alt_x
= alt_y
= savecurs
.x
= savecurs
.y
= 0;
236 alt_b
= marg_b
= rows
- 1;
241 for (i
= 0; i
< cols
; i
++)
242 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
244 alt_om
= dec_om
= cfg
.dec_om
;
245 alt_wnext
= wrapnext
= alt_ins
= insert
= FALSE
;
246 alt_wrap
= wrap
= cfg
.wrap_mode
;
248 cset_attr
[0] = cset_attr
[1] = ATTR_ASCII
;
252 save_attr
= curr_attr
= ATTR_DEFAULT
;
253 term_editing
= term_echoing
= FALSE
;
254 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
255 app_cursor_keys
= cfg
.app_cursor
;
256 app_keypad_keys
= cfg
.app_keypad
;
258 blink_is_real
= cfg
.blinktext
;
259 erase_char
= ERASE_CHAR
;
263 for (i
= 0; i
< 256; i
++)
264 wordness
[i
] = cfg
.wordness
[i
];
268 erase_lots (FALSE
, TRUE
, TRUE
);
270 erase_lots (FALSE
, TRUE
, TRUE
);
275 * Force a screen update.
277 void term_update(void) {
281 if ( (seen_key_event
&& (cfg
.scroll_on_key
)) ||
282 (seen_disp_event
&& (cfg
.scroll_on_disp
)) ) {
283 disptop
= 0; /* return to main screen */
284 seen_disp_event
= seen_key_event
= 0;
287 do_paint (ctx
, TRUE
);
288 sys_cursor(curs
.x
, curs
.y
- disptop
);
294 * Same as power_on(), but an external function.
296 void term_pwron(void) {
305 * Clear the scrollback.
307 void term_clrsb(void) {
310 while ((line
= delpos234(scrollback
, 0)) != NULL
) {
317 * Initialise the terminal.
319 void term_init(void) {
320 screen
= alt_screen
= scrollback
= NULL
;
322 disptext
= wanttext
= NULL
;
328 beephead
= beeptail
= NULL
;
331 beep_overloaded
= FALSE
;
335 * Set up the terminal for a given size.
337 void term_size(int newrows
, int newcols
, int newsavelines
) {
338 tree234
*newsb
, *newscreen
, *newalt
;
339 unsigned long *newdisp
, *newwant
, *oldline
, *line
;
342 int save_alt_which
= alt_which
;
344 if (newrows
== rows
&& newcols
== cols
&& newsavelines
== savelines
)
345 return; /* nothing to do */
351 alt_b
= marg_b
= newrows
- 1;
353 debug(("term_size, old r,c,s (%d,%d,%d), new rcs (%d,%d,%d)\n",
354 rows
, cols
, savelines
, newrows
, newcols
, newsavelines
));
357 scrollback
= newtree234(NULL
);
358 screen
= newtree234(NULL
);
363 * Resize the screen and scrollback. We only need to shift
364 * lines around within our data structures, because lineptr()
365 * will take care of resizing each individual line if
368 * - If the new screen and the old screen differ in length, we
369 * must shunt some lines in from the scrollback or out to
372 * - If doing that fails to provide us with enough material to
373 * fill the new screen (i.e. the number of rows needed in
374 * the new screen exceeds the total number in the previous
375 * screen+scrollback), we must invent some blank lines to
378 * - Then, if the new scrollback length is less than the
379 * amount of scrollback we actually have, we must throw some
382 sblen
= count234(scrollback
);
383 debug(("newrows=%d rows=%d sblen=%d\n", newrows
, rows
, sblen
));
384 if (newrows
> rows
) {
385 for (i
= rows
; i
< newrows
; i
++) {
386 debug(("increase screen: i=%d\n", i
));
388 debug(("sblen=%d so use line from scrollback\n", sblen
));
389 line
= delpos234(scrollback
, --sblen
);
391 debug(("sblen=%d so make up a new line\n", sblen
));
392 line
= smalloc(TSIZE
* (newcols
+2));
394 for (j
= 0; j
<= newcols
; j
++)
395 line
[j
+1] = ERASE_CHAR
;
397 debug(("got new screen line %p\n", line
));
398 addpos234(screen
, line
, 0);
400 } else if (newrows
< rows
) {
401 for (i
= newrows
; i
< rows
; i
++) {
402 debug(("decrease screen: i=%d\n", i
));
403 line
= delpos234(screen
, 0);
404 debug(("taken out line %p, count is now %d\n",
405 line
, count234(screen
)));
406 addpos234(scrollback
, line
, sblen
++);
407 debug(("added to scrollback, sblen is now %d\n", sblen
));
410 assert(count234(screen
) == newrows
);
411 while (sblen
> newsavelines
) {
412 line
= delpos234(scrollback
, 0);
416 assert(count234(scrollback
) <= newsavelines
);
419 newdisp
= smalloc (newrows
*(newcols
+1)*TSIZE
);
420 for (i
=0; i
<newrows
*(newcols
+1); i
++)
421 newdisp
[i
] = ATTR_INVALID
;
425 newwant
= smalloc (newrows
*(newcols
+1)*TSIZE
);
426 for (i
=0; i
<newrows
*(newcols
+1); i
++)
427 newwant
[i
] = ATTR_INVALID
;
431 newalt
= newtree234(NULL
);
432 for (i
=0; i
<newrows
; i
++) {
433 line
= smalloc(TSIZE
* (newcols
+2));
435 for (j
= 0; j
<= newcols
; j
++)
436 line
[j
+1] = erase_char
;
437 addpos234(newalt
, line
, i
);
440 while (NULL
!= (line
= delpos234(alt_screen
, 0)))
442 freetree234(alt_screen
);
447 selspace
= smalloc ( (newrows
+newsavelines
) * (newcols
+sizeof(sel_nl
)) );
449 tabs
= srealloc (tabs
, newcols
*sizeof(*tabs
));
452 for (i
= (cols
> 0 ? cols
: 0); i
< newcols
; i
++)
453 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
457 curs
.y
+= newrows
- rows
;
460 if (curs
.y
>= newrows
)
462 if (curs
.x
>= newcols
)
465 wrapnext
= alt_wnext
= FALSE
;
469 savelines
= newsavelines
;
472 swap_screen(save_alt_which
);
481 static void swap_screen (int which
) {
485 if (which
== alt_which
)
490 ttr
= alt_screen
; alt_screen
= screen
; screen
= ttr
;
491 t
= curs
.x
; curs
.x
= alt_x
; alt_x
= t
;
492 t
= curs
.y
; curs
.y
= alt_y
; alt_y
= t
;
493 t
= marg_t
; marg_t
= alt_t
; alt_t
= t
;
494 t
= marg_b
; marg_b
= alt_b
; alt_b
= t
;
495 t
= dec_om
; dec_om
= alt_om
; alt_om
= t
;
496 t
= wrap
; wrap
= alt_wrap
; alt_wrap
= t
;
497 t
= wrapnext
; wrapnext
= alt_wnext
; alt_wnext
= t
;
498 t
= insert
; insert
= alt_ins
; alt_ins
= t
;
499 t
= cset
; cset
= alt_cset
; alt_cset
= t
;
505 * Update the scroll bar.
507 static void update_sbar(void) {
510 nscroll
= count234(scrollback
);
512 set_sbar (nscroll
+ rows
, nscroll
+ disptop
, rows
);
516 * Check whether the region bounded by the two pointers intersects
517 * the scroll region, and de-select the on-screen selection if so.
519 static void check_selection (pos from
, pos to
) {
520 if (poslt(from
, selend
) && poslt(selstart
, to
))
525 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
526 * for backward.) `sb' is TRUE if the scrolling is permitted to
527 * affect the scrollback buffer.
529 * NB this function invalidates all pointers into lines of the
530 * screen data structures. In particular, you MUST call fix_cpos
531 * after calling scroll() and before doing anything else that
532 * uses the cpos shortcut pointer.
534 static void scroll (int topline
, int botline
, int lines
, int sb
) {
535 unsigned long *line
, *line2
;
538 if (topline
!= 0 || alt_which
!= 0)
543 line
= delpos234(screen
, botline
);
544 for (i
= 0; i
< cols
; i
++)
545 line
[i
+1] = erase_char
;
547 addpos234(screen
, line
, topline
);
549 if (selstart
.y
>= topline
&& selstart
.y
<= botline
) {
551 if (selstart
.y
> botline
) {
552 selstart
.y
= botline
;
556 if (selend
.y
>= topline
&& selend
.y
<= botline
) {
558 if (selend
.y
> botline
) {
568 line
= delpos234(screen
, topline
);
569 if (sb
&& savelines
> 0) {
570 int sblen
= count234(scrollback
);
572 * We must add this line to the scrollback. We'll
573 * remove a line from the top of the scrollback to
574 * replace it, or allocate a new one if the
575 * scrollback isn't full.
577 if (sblen
== savelines
) {
578 sblen
--, line2
= delpos234(scrollback
, 0);
580 line2
= smalloc(TSIZE
* (cols
+2));
583 addpos234(scrollback
, line
, sblen
);
586 for (i
= 0; i
< cols
; i
++)
587 line
[i
+1] = erase_char
;
589 addpos234(screen
, line
, botline
);
591 if (selstart
.y
>= topline
&& selstart
.y
<= botline
) {
593 if (selstart
.y
< topline
) {
594 selstart
.y
= topline
;
598 if (selend
.y
>= topline
&& selend
.y
<= botline
) {
600 if (selend
.y
< topline
) {
612 * Move the cursor to a given position, clipping at boundaries. We
613 * may or may not want to clip at the scroll margin: marg_clip is 0
614 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
615 * even _being_ outside the margins.
617 static void move (int x
, int y
, int marg_clip
) {
623 if ((curs
.y
>= marg_t
|| marg_clip
== 2) && y
< marg_t
)
625 if ((curs
.y
<= marg_b
|| marg_clip
== 2) && y
> marg_b
)
639 * Save or restore the cursor and SGR mode.
641 static void save_cursor(int save
) {
644 save_attr
= curr_attr
;
646 save_csattr
= cset_attr
[cset
];
649 /* Make sure the window hasn't shrunk since the save */
650 if (curs
.x
>= cols
) curs
.x
= cols
-1;
651 if (curs
.y
>= rows
) curs
.y
= rows
-1;
653 curr_attr
= save_attr
;
655 cset_attr
[cset
] = save_csattr
;
657 if (use_bce
) erase_char
= (' ' |(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
662 * Erase a large portion of the screen: the whole screen, or the
663 * whole line, or parts thereof.
665 static void erase_lots (int line_only
, int from_begin
, int to_end
) {
668 unsigned long *ldata
;
689 check_selection (start
, end
);
691 /* Clear screen also forces a full window redraw, just in case. */
692 if (start
.y
== 0 && start
.x
== 0 && end
.y
== rows
)
695 ldata
= lineptr(start
.y
);
696 while (poslt(start
, end
)) {
697 if (start
.y
== cols
&& !erase_lattr
)
698 ldata
[start
.x
] &= ~ATTR_WRAPPED
;
700 ldata
[start
.x
] = erase_char
;
701 if (incpos(start
) && start
.y
< rows
)
702 ldata
= lineptr(start
.y
);
707 * Insert or delete characters within the current line. n is +ve if
708 * insertion is desired, and -ve for deletion.
710 static void insch (int n
) {
711 int dir
= (n
< 0 ?
-1 : +1);
714 unsigned long *ldata
;
716 n
= (n
< 0 ?
-n
: n
);
717 if (n
> cols
- curs
.x
)
719 m
= cols
- curs
.x
- n
;
721 cursplus
.x
= curs
.x
+ n
;
722 check_selection (curs
, cursplus
);
723 ldata
= lineptr(curs
.y
);
725 memmove (ldata
+ curs
.x
, ldata
+ curs
.x
+ n
, m
*TSIZE
);
727 ldata
[curs
.x
+ m
++] = erase_char
;
729 memmove (ldata
+ curs
.x
+ n
, ldata
+ curs
.x
, m
*TSIZE
);
731 ldata
[curs
.x
+ n
] = erase_char
;
736 * Toggle terminal mode `mode' to state `state'. (`query' indicates
737 * whether the mode is a DEC private one or a normal one.)
739 static void toggle_mode (int mode
, int query
, int state
) {
741 if (query
) switch (mode
) {
742 case 1: /* application cursor keys */
743 app_cursor_keys
= state
;
745 case 2: /* VT52 mode */
748 case 3: /* 80/132 columns */
750 request_resize (state ?
132 : 80, rows
, 1);
753 case 5: /* reverse video */
755 * Toggle reverse video. If we receive an OFF within the
756 * visual bell timeout period after an ON, we trigger an
757 * effective visual bell, so that ESC[?5hESC[?5l will
758 * always be an actually _visible_ visual bell.
760 ticks
= GetTickCount();
761 if (rvideo
&& !state
&& /* we're turning it off */
762 ticks
< rvbell_timeout
) { /* and it's not long since it was turned on */
763 in_vbell
= TRUE
; /* we may clear rvideo but we set in_vbell */
764 if (vbell_timeout
< rvbell_timeout
) /* don't move vbell end forward */
765 vbell_timeout
= rvbell_timeout
; /* vbell end is at least then */
766 } else if (!rvideo
&& state
) {
767 /* This is an ON, so we notice the time and save it. */
768 rvbell_timeout
= ticks
+ VBELL_TIMEOUT
;
771 seen_disp_event
= TRUE
;
772 if (state
) term_update();
774 case 6: /* DEC origin mode */
777 case 7: /* auto wrap */
780 case 8: /* auto key repeat */
783 case 10: /* set local edit mode */
784 term_editing
= state
;
785 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
787 case 25: /* enable/disable cursor */
788 compatibility2(OTHER
,VT220
);
790 seen_disp_event
= TRUE
;
792 case 47: /* alternate screen */
793 compatibility(OTHER
);
798 } else switch (mode
) {
799 case 4: /* set insert mode */
800 compatibility(VT102
);
803 case 12: /* set echo mode */
804 term_echoing
= !state
;
805 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
807 case 20: /* Return sends ... */
808 cr_lf_return
= state
;
814 * Process an OSC sequence: set window title or icon name.
816 static void do_osc(void) {
819 wordness
[(unsigned char)osc_string
[osc_strlen
]] = esc_args
[0];
821 osc_string
[osc_strlen
] = '\0';
822 switch (esc_args
[0]) {
825 set_icon (osc_string
);
826 if (esc_args
[0] == 1)
828 /* fall through: parameter 0 means set both */
831 set_title (osc_string
);
838 * Remove everything currently in `inbuf' and stick it up on the
839 * in-memory display. There's a big state machine in here to
840 * process escape sequences...
842 void term_out(void) {
845 for(inbuf_reap
= 0; inbuf_reap
< inbuf_head
; inbuf_reap
++)
847 c
= inbuf
[inbuf_reap
];
850 * Optionally log the session traffic to a file. Useful for
851 * debugging and possibly also useful for actual logging.
853 logtraffic((unsigned char)c
, LGTYP_DEBUG
);
855 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
856 * be able to display 8-bit characters, but I'll let that go 'cause
859 if( ( (c
&0x60) == 0 || c
== '\177') &&
860 termstate
< DO_CTRLS
&&
861 ( (c
&0x80) == 0 || has_compat(VT220
))) {
863 case '\005': /* terminal type query */
864 /* Strictly speaking this is VT100 but a VT100 defaults to
865 * no response. Other terminals respond at their option.
867 * Don't put a CR in the default string as this tends to
868 * upset some weird software.
870 * An xterm returns "xterm" (5 characters)
872 compatibility(ANSIMIN
);
874 char abuf
[256], *s
, *d
;
876 for(s
=cfg
.answerback
, d
=abuf
; *s
; s
++) {
879 if (*s
>= 'a' && *s
<= 'z')
880 *d
++ = (*s
- ('a'-1));
881 else if ((*s
>='@' && *s
<='_') ||
882 *s
== '?' || (*s
&0x80))
888 else if (*s
== '^') {
892 *d
++ = xlat_kbd2tty((unsigned char)*s
);
894 ldisc_send (abuf
, d
-abuf
);
899 struct beeptime
*newbeep
;
902 ticks
= GetTickCount();
904 if (!beep_overloaded
) {
905 newbeep
= smalloc(sizeof(struct beeptime
));
906 newbeep
->ticks
= ticks
;
907 newbeep
->next
= NULL
;
911 beeptail
->next
= newbeep
;
917 * Throw out any beeps that happened more than
921 beephead
->ticks
< ticks
- cfg
.bellovl_t
) {
922 struct beeptime
*tmp
= beephead
;
923 beephead
= tmp
->next
;
930 if (cfg
.bellovl
&& beep_overloaded
&&
931 ticks
-lastbeep
>= cfg
.bellovl_s
) {
933 * If we're currently overloaded and the
934 * last beep was more than s seconds ago,
935 * leave overload mode.
937 beep_overloaded
= FALSE
;
938 } else if (cfg
.bellovl
&& !beep_overloaded
&&
939 nbeeps
>= cfg
.bellovl_n
) {
941 * Now, if we have n or more beeps
942 * remaining in the queue, go into overload
945 beep_overloaded
= TRUE
;
950 * Perform an actual beep if we're not overloaded.
952 if ((!cfg
.bellovl
|| !beep_overloaded
) && cfg
.beep
!= 0) {
955 else if(cfg
.beep
== 2) {
957 vbell_timeout
= ticks
+ VBELL_TIMEOUT
;
965 if (curs
.x
== 0 && curs
.y
== 0)
967 else if (curs
.x
== 0 && curs
.y
> 0)
968 curs
.x
= cols
-1, curs
.y
--;
974 seen_disp_event
= TRUE
;
977 compatibility(VT100
);
981 compatibility(VT100
);
986 termstate
= VT52_ESC
;
988 compatibility(ANSIMIN
);
989 termstate
= SEEN_ESC
;
993 compatibility(VT220
);
994 termstate
= SEEN_CSI
;
996 esc_args
[0] = ARG_DEFAULT
;
1000 compatibility(VT220
);
1001 termstate
= SEEN_OSC
;
1008 seen_disp_event
= TRUE
;
1010 logtraffic((unsigned char)c
,LGTYP_ASCII
);
1014 compatibility(VT100
);
1016 if (curs
.y
== marg_b
)
1017 scroll (marg_t
, marg_b
, 1, TRUE
);
1018 else if (curs
.y
< rows
-1)
1024 seen_disp_event
= 1;
1026 logtraffic((unsigned char)c
,LGTYP_ASCII
);
1030 pos old_curs
= curs
;
1031 unsigned long *ldata
= lineptr(curs
.y
);
1035 } while (curs
.x
< cols
-1 && !tabs
[curs
.x
]);
1037 if ((ldata
[cols
] & LATTR_MODE
) != LATTR_NORM
)
1039 if (curs
.x
>= cols
/2)
1049 check_selection (old_curs
, curs
);
1051 seen_disp_event
= TRUE
;
1053 case '\177': /* Destructive backspace
1054 This does nothing on a real VT100 */
1055 compatibility(OTHER
);
1056 if (curs
.x
&& !wrapnext
) curs
.x
--;
1059 *cpos
= (' ' | curr_attr
| ATTR_ASCII
);
1063 else switch (termstate
) {
1065 /* Only graphic characters get this far, ctrls are stripped above */
1066 if (wrapnext
&& wrap
) {
1067 cpos
[1] |= ATTR_WRAPPED
;
1068 if (curs
.y
== marg_b
)
1069 scroll (marg_t
, marg_b
, 1, TRUE
);
1070 else if (curs
.y
< rows
-1)
1078 if (selstate
!= NO_SELECTION
) {
1079 pos cursplus
= curs
;
1081 check_selection (curs
, cursplus
);
1083 switch (cset_attr
[cset
]) {
1085 * Linedraw characters are different from 'ESC ( B'
1086 * only for a small range. For ones outside that
1087 * range, make sure we use the same font as well as
1088 * the same encoding.
1091 if (c
<0x5f || c
>0x7F)
1092 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
1095 *cpos
++ = ' ' | curr_attr
| ATTR_ASCII
;
1097 *cpos
++ = ((unsigned char)c
) | curr_attr
| ATTR_LINEDRW
;
1100 /* If UK-ASCII, make the '#' a LineDraw Pound */
1102 *cpos
++ = '}' | curr_attr
| ATTR_LINEDRW
;
1107 *cpos
= xlat_tty2scr((unsigned char)c
) | curr_attr
|
1108 (c
<= 0x7F ? cset_attr
[cset
] : ATTR_ASCII
);
1109 logtraffic((unsigned char)c
, LGTYP_ASCII
);
1114 if (curs
.x
== cols
) {
1119 seen_disp_event
= 1;
1123 termstate
= TOPLEVEL
;
1127 * This state is virtually identical to SEEN_ESC, with the
1128 * exception that we have an OSC sequence in the pipeline,
1129 * and _if_ we see a backslash, we process it.
1133 termstate
= TOPLEVEL
;
1136 /* else fall through */
1138 termstate
= TOPLEVEL
;
1140 case ' ': /* some weird sequence? */
1141 compatibility(VT220
);
1142 termstate
= IGNORE_NEXT
;
1144 case '[': /* enter CSI mode */
1145 termstate
= SEEN_CSI
;
1147 esc_args
[0] = ARG_DEFAULT
;
1150 case ']': /* xterm escape sequences */
1151 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1152 compatibility(OTHER
);
1153 termstate
= SEEN_OSC
;
1156 case '(': /* should set GL */
1157 compatibility(VT100
);
1160 case ')': /* should set GR */
1161 compatibility(VT100
);
1164 case '7': /* save cursor */
1165 compatibility(VT100
);
1168 case '8': /* restore cursor */
1169 compatibility(VT100
);
1170 save_cursor (FALSE
);
1171 seen_disp_event
= TRUE
;
1174 compatibility(VT100
);
1175 app_keypad_keys
= TRUE
;
1178 compatibility(VT100
);
1179 app_keypad_keys
= FALSE
;
1181 case 'D': /* exactly equivalent to LF */
1182 compatibility(VT100
);
1183 if (curs
.y
== marg_b
)
1184 scroll (marg_t
, marg_b
, 1, TRUE
);
1185 else if (curs
.y
< rows
-1)
1189 seen_disp_event
= TRUE
;
1191 case 'E': /* exactly equivalent to CR-LF */
1192 compatibility(VT100
);
1194 if (curs
.y
== marg_b
)
1195 scroll (marg_t
, marg_b
, 1, TRUE
);
1196 else if (curs
.y
< rows
-1)
1200 seen_disp_event
= TRUE
;
1202 case 'M': /* reverse index - backwards LF */
1203 compatibility(VT100
);
1204 if (curs
.y
== marg_t
)
1205 scroll (marg_t
, marg_b
, -1, TRUE
);
1206 else if (curs
.y
> 0)
1210 seen_disp_event
= TRUE
;
1212 case 'Z': /* terminal type query */
1213 compatibility(VT100
);
1214 ldisc_send (id_string
, strlen(id_string
));
1216 case 'c': /* restore power-on settings */
1217 compatibility(VT100
);
1220 request_resize (80, rows
, 1);
1225 seen_disp_event
= TRUE
;
1227 case '#': /* ESC # 8 fills screen with Es :-) */
1228 compatibility(VT100
);
1229 termstate
= SEEN_ESCHASH
;
1231 case 'H': /* set a tab */
1232 compatibility(VT100
);
1233 tabs
[curs
.x
] = TRUE
;
1238 termstate
= TOPLEVEL
; /* default */
1241 if (esc_nargs
<= ARGS_MAX
) {
1242 if (esc_args
[esc_nargs
-1] == ARG_DEFAULT
)
1243 esc_args
[esc_nargs
-1] = 0;
1244 esc_args
[esc_nargs
-1] =
1245 10 * esc_args
[esc_nargs
-1] + c
- '0';
1247 termstate
= SEEN_CSI
;
1251 if (++esc_nargs
<= ARGS_MAX
)
1252 esc_args
[esc_nargs
-1] = ARG_DEFAULT
;
1253 termstate
= SEEN_CSI
;
1257 if( esc_query
) esc_query
= -1;
1258 else if( c
== '?' ) esc_query
= TRUE
;
1260 termstate
= SEEN_CSI
;
1262 else switch (ANSI(c
,esc_query
)) {
1263 case 'A': /* move up N lines */
1264 move (curs
.x
, curs
.y
- def(esc_args
[0], 1), 1);
1265 seen_disp_event
= TRUE
;
1267 case 'e': /* move down N lines */
1268 compatibility(ANSI
);
1270 move (curs
.x
, curs
.y
+ def(esc_args
[0], 1), 1);
1271 seen_disp_event
= TRUE
;
1273 case 'a': /* move right N cols */
1274 compatibility(ANSI
);
1276 move (curs
.x
+ def(esc_args
[0], 1), curs
.y
, 1);
1277 seen_disp_event
= TRUE
;
1279 case 'D': /* move left N cols */
1280 move (curs
.x
- def(esc_args
[0], 1), curs
.y
, 1);
1281 seen_disp_event
= TRUE
;
1283 case 'E': /* move down N lines and CR */
1284 compatibility(ANSI
);
1285 move (0, curs
.y
+ def(esc_args
[0], 1), 1);
1286 seen_disp_event
= TRUE
;
1288 case 'F': /* move up N lines and CR */
1289 compatibility(ANSI
);
1290 move (0, curs
.y
- def(esc_args
[0], 1), 1);
1291 seen_disp_event
= TRUE
;
1293 case 'G': case '`': /* set horizontal posn */
1294 compatibility(ANSI
);
1295 move (def(esc_args
[0], 1) - 1, curs
.y
, 0);
1296 seen_disp_event
= TRUE
;
1298 case 'd': /* set vertical posn */
1299 compatibility(ANSI
);
1300 move (curs
.x
, (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1302 seen_disp_event
= TRUE
;
1304 case 'H': case 'f': /* set horz and vert posns at once */
1306 esc_args
[1] = ARG_DEFAULT
;
1307 move (def(esc_args
[1], 1) - 1,
1308 (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1310 seen_disp_event
= TRUE
;
1312 case 'J': /* erase screen or parts of it */
1314 unsigned int i
= def(esc_args
[0], 0) + 1;
1317 erase_lots(FALSE
, !!(i
& 2), !!(i
& 1));
1320 seen_disp_event
= TRUE
;
1322 case 'K': /* erase line or parts of it */
1324 unsigned int i
= def(esc_args
[0], 0) + 1;
1327 erase_lots(TRUE
, !!(i
& 2), !!(i
& 1));
1329 seen_disp_event
= TRUE
;
1331 case 'L': /* insert lines */
1332 compatibility(VT102
);
1333 if (curs
.y
<= marg_b
)
1334 scroll (curs
.y
, marg_b
, -def(esc_args
[0], 1), FALSE
);
1336 seen_disp_event
= TRUE
;
1338 case 'M': /* delete lines */
1339 compatibility(VT102
);
1340 if (curs
.y
<= marg_b
)
1341 scroll (curs
.y
, marg_b
, def(esc_args
[0], 1), TRUE
);
1343 seen_disp_event
= TRUE
;
1345 case '@': /* insert chars */
1346 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1347 compatibility(VT102
);
1348 insch (def(esc_args
[0], 1));
1349 seen_disp_event
= TRUE
;
1351 case 'P': /* delete chars */
1352 compatibility(VT102
);
1353 insch (-def(esc_args
[0], 1));
1354 seen_disp_event
= TRUE
;
1356 case 'c': /* terminal type query */
1357 compatibility(VT100
);
1358 /* This is the response for a VT102 */
1359 ldisc_send (id_string
, strlen(id_string
));
1361 case 'n': /* cursor position query */
1362 if (esc_args
[0] == 6) {
1364 sprintf (buf
, "\033[%d;%dR", curs
.y
+ 1, curs
.x
+ 1);
1365 ldisc_send (buf
, strlen(buf
));
1367 else if (esc_args
[0] == 5) {
1368 ldisc_send ("\033[0n", 4);
1371 case 'h': /* toggle modes to high */
1373 compatibility(VT100
);
1376 for (i
=0; i
<esc_nargs
; i
++)
1377 toggle_mode (esc_args
[i
], esc_query
, TRUE
);
1380 case 'l': /* toggle modes to low */
1382 compatibility(VT100
);
1385 for (i
=0; i
<esc_nargs
; i
++)
1386 toggle_mode (esc_args
[i
], esc_query
, FALSE
);
1389 case 'g': /* clear tabs */
1390 compatibility(VT100
);
1391 if (esc_nargs
== 1) {
1392 if (esc_args
[0] == 0) {
1393 tabs
[curs
.x
] = FALSE
;
1394 } else if (esc_args
[0] == 3) {
1396 for (i
= 0; i
< cols
; i
++)
1401 case 'r': /* set scroll margins */
1402 compatibility(VT100
);
1403 if (esc_nargs
<= 2) {
1405 top
= def(esc_args
[0], 1) - 1;
1406 bot
= (esc_nargs
<= 1 || esc_args
[1] == 0 ? rows
:
1407 def(esc_args
[1], rows
)) - 1;
1410 /* VTTEST Bug 9 - if region is less than 2 lines
1411 * don't change region.
1418 * I used to think the cursor should be
1419 * placed at the top of the newly marginned
1420 * area. Apparently not: VMS TPU falls over
1423 * Well actually it should for Origin mode - RDB
1425 curs
.y
= (dec_om ? marg_t
: 0);
1427 seen_disp_event
= TRUE
;
1431 case 'm': /* set graphics rendition */
1434 * A VT100 without the AVO only had one attribute, either
1435 * underline or reverse video depending on the cursor type,
1436 * this was selected by CSI 7m.
1439 * This is DIM on the VT100-AVO and VT102
1441 * This is BLINK on the VT100-AVO and VT102+
1443 * This is INVIS on the VT100-AVO and VT102
1445 * This like 22 disables BOLD, DIM and INVIS
1447 * The ANSI colours appear on any terminal that has colour
1448 * (obviously) but the interaction between sgr0 and the
1449 * colours varies but is usually related to the background
1450 * colour erase item.
1451 * The interaction between colour attributes and the mono
1452 * ones is also very implementation dependent.
1454 * The 39 and 49 attributes are likely to be unimplemented.
1457 for (i
=0; i
<esc_nargs
; i
++) {
1458 switch (def(esc_args
[i
], 0)) {
1459 case 0: /* restore defaults */
1460 curr_attr
= ATTR_DEFAULT
; break;
1461 case 1: /* enable bold */
1462 compatibility(VT100AVO
);
1463 curr_attr
|= ATTR_BOLD
; break;
1464 case 21: /* (enable double underline) */
1465 compatibility(OTHER
);
1466 case 4: /* enable underline */
1467 compatibility(VT100AVO
);
1468 curr_attr
|= ATTR_UNDER
; break;
1469 case 5: /* enable blink */
1470 compatibility(VT100AVO
);
1471 curr_attr
|= ATTR_BLINK
; break;
1472 case 7: /* enable reverse video */
1473 curr_attr
|= ATTR_REVERSE
; break;
1474 case 22: /* disable bold */
1475 compatibility2(OTHER
,VT220
);
1476 curr_attr
&= ~ATTR_BOLD
; break;
1477 case 24: /* disable underline */
1478 compatibility2(OTHER
,VT220
);
1479 curr_attr
&= ~ATTR_UNDER
; break;
1480 case 25: /* disable blink */
1481 compatibility2(OTHER
,VT220
);
1482 curr_attr
&= ~ATTR_BLINK
; break;
1483 case 27: /* disable reverse video */
1484 compatibility2(OTHER
,VT220
);
1485 curr_attr
&= ~ATTR_REVERSE
; break;
1486 case 30: case 31: case 32: case 33:
1487 case 34: case 35: case 36: case 37:
1489 curr_attr
&= ~ATTR_FGMASK
;
1490 curr_attr
|= (esc_args
[i
] - 30) << ATTR_FGSHIFT
;
1492 case 39: /* default-foreground */
1493 curr_attr
&= ~ATTR_FGMASK
;
1494 curr_attr
|= ATTR_DEFFG
;
1496 case 40: case 41: case 42: case 43:
1497 case 44: case 45: case 46: case 47:
1499 curr_attr
&= ~ATTR_BGMASK
;
1500 curr_attr
|= (esc_args
[i
] - 40) << ATTR_BGSHIFT
;
1502 case 49: /* default-background */
1503 curr_attr
&= ~ATTR_BGMASK
;
1504 curr_attr
|= ATTR_DEFBG
;
1511 (curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
|ATTR_BLINK
))
1515 case 's': /* save cursor */
1518 case 'u': /* restore cursor */
1519 save_cursor (FALSE
);
1520 seen_disp_event
= TRUE
;
1522 case 't': /* set page size - ie window height */
1524 * VT340/VT420 sequence DECSLPP, DEC only allows values
1525 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1526 * illegal values (eg first arg 1..9) for window changing
1529 compatibility(VT340TEXT
);
1530 if (esc_nargs
<=1 && (esc_args
[0]<1 || esc_args
[0]>=24)) {
1531 request_resize (cols
, def(esc_args
[0], 24), 0);
1535 case ANSI('|', '*'):
1536 /* VT420 sequence DECSNLS
1537 * Set number of lines on screen
1538 * VT420 uses VGA like hardware and can support any size in
1539 * reasonable range (24..49 AIUI) with no default specified.
1541 compatibility(VT420
);
1542 if (esc_nargs
==1 && esc_args
[0]>0) {
1543 request_resize (cols
, def(esc_args
[0], cfg
.height
), 0);
1547 case ANSI('|', '$'):
1548 /* VT340/VT420 sequence DECSCPP
1549 * Set number of columns per page
1550 * Docs imply range is only 80 or 132, but I'll allow any.
1552 compatibility(VT340TEXT
);
1554 request_resize (def(esc_args
[0], cfg
.width
), rows
, 0);
1558 case 'X': /* write N spaces w/o moving cursor */
1559 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1560 compatibility(ANSIMIN
);
1562 int n
= def(esc_args
[0], 1);
1564 unsigned long *p
= cpos
;
1565 if (n
> cols
- curs
.x
)
1569 check_selection (curs
, cursplus
);
1572 seen_disp_event
= TRUE
;
1575 case 'x': /* report terminal characteristics */
1576 compatibility(VT100
);
1579 int i
= def(esc_args
[0], 0);
1580 if (i
== 0 || i
== 1) {
1581 strcpy (buf
, "\033[2;1;1;112;112;1;0x");
1583 ldisc_send (buf
, 20);
1588 compatibility(OTHER
);
1589 use_bce
= (esc_args
[0]<=0);
1590 erase_char
= ERASE_CHAR
;
1592 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1595 compatibility(OTHER
);
1596 blink_is_real
= (esc_args
[0]>=1);
1599 /* Allow the host to make this emulator a 'perfect' VT102.
1600 * This first appeared in the VT220, but we do need to get
1601 * back to PuTTY mode so I won't check it.
1603 * The arg in 40..42 are a PuTTY extension.
1604 * The 2nd arg, 8bit vs 7bit is not checked.
1606 * Setting VT102 mode should also change the Fkeys to
1607 * generate PF* codes as a real VT102 has no Fkeys.
1608 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1611 * Note ESC c will NOT change this!
1614 switch (esc_args
[0]) {
1615 case 61: compatibility_level
&= ~TM_VTXXX
;
1616 compatibility_level
|= TM_VT102
; break;
1617 case 62: compatibility_level
&= ~TM_VTXXX
;
1618 compatibility_level
|= TM_VT220
; break;
1620 default: if( esc_args
[0] > 60 && esc_args
[0] < 70 )
1621 compatibility_level
|= TM_VTXXX
;
1624 case 40: compatibility_level
&= TM_VTXXX
; break;
1625 case 41: compatibility_level
= TM_PUTTY
; break;
1626 case 42: compatibility_level
= TM_SCOANSI
; break;
1629 compatibility_level
= TM_PUTTY
; break;
1633 /* Change the response to CSI c */
1634 if (esc_args
[0] == 50) {
1637 strcpy(id_string
, "\033[?");
1638 for (i
=1; i
<esc_nargs
; i
++) {
1639 if (i
!=1) strcat(id_string
, ";");
1640 sprintf(lbuf
, "%d", esc_args
[i
]);
1641 strcat(id_string
, lbuf
);
1643 strcat(id_string
, "c");
1647 /* Is this a good idea ?
1648 * Well we should do a soft reset at this point ...
1650 if (!has_compat(VT420
) && has_compat(VT100
)) {
1651 if (reset_132
) request_resize (132, 24, 1);
1652 else request_resize ( 80, 24, 1);
1660 /* VT100 only here, checked above */
1663 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_GBCHR
;
1666 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_LINEDRW
;
1669 default: /* specifically, 'B' */
1670 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_ASCII
;
1673 if( !has_compat(VT220
) || c
!= '%' )
1674 termstate
= TOPLEVEL
;
1679 case 'P': /* Linux palette sequence */
1680 termstate
= SEEN_OSC_P
;
1683 case 'R': /* Linux palette reset */
1686 termstate
= TOPLEVEL
;
1688 case 'W': /* word-set */
1689 termstate
= SEEN_OSC_W
;
1692 case '0': case '1': case '2': case '3': case '4':
1693 case '5': case '6': case '7': case '8': case '9':
1694 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1698 * Grotty hack to support xterm and DECterm title
1699 * sequences concurrently.
1701 if (esc_args
[0] == 2) {
1705 /* else fall through */
1707 termstate
= OSC_STRING
;
1713 * This OSC stuff is EVIL. It takes just one character to get into
1714 * sysline mode and it's not initially obvious how to get out.
1715 * So I've added CR and LF as string aborts.
1716 * This shouldn't effect compatibility as I believe embedded
1717 * control characters are supposed to be interpreted (maybe?)
1718 * and they don't display anything useful anyway.
1722 if (c
== '\n' || c
== '\r') {
1723 termstate
= TOPLEVEL
;
1724 } else if (c
== 0234 || c
== '\007' ) {
1726 * These characters terminate the string; ST and BEL
1727 * terminate the sequence and trigger instant
1728 * processing of it, whereas ESC goes back to SEEN_ESC
1729 * mode unless it is followed by \, in which case it is
1730 * synonymous with ST in the first place.
1733 termstate
= TOPLEVEL
;
1734 } else if (c
== '\033')
1735 termstate
= OSC_MAYBE_ST
;
1736 else if (osc_strlen
< OSC_STR_MAX
)
1737 osc_string
[osc_strlen
++] = c
;
1741 int max
= (osc_strlen
== 0 ?
21 : 16);
1743 if (c
>= '0' && c
<= '9')
1745 else if (c
>= 'A' && c
<= 'A'+max
-10)
1747 else if (c
>= 'a' && c
<= 'a'+max
-10)
1750 termstate
= TOPLEVEL
;
1751 osc_string
[osc_strlen
++] = val
;
1752 if (osc_strlen
>= 7) {
1753 palette_set (osc_string
[0],
1754 osc_string
[1] * 16 + osc_string
[2],
1755 osc_string
[3] * 16 + osc_string
[4],
1756 osc_string
[5] * 16 + osc_string
[6]);
1758 termstate
= TOPLEVEL
;
1764 case '0': case '1': case '2': case '3': case '4':
1765 case '5': case '6': case '7': case '8': case '9':
1766 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1769 termstate
= OSC_STRING
;
1775 unsigned long nlattr
;
1776 unsigned long *ldata
;
1782 for (i
= 0; i
< rows
; i
++) {
1784 for (j
= 0; j
< cols
; j
++)
1785 ldata
[j
] = ATTR_DEFAULT
| 'E';
1789 seen_disp_event
= TRUE
;
1790 scrtop
.x
= scrtop
.y
= 0;
1791 scrbot
.x
= 0; scrbot
.y
= rows
;
1792 check_selection (scrtop
, scrbot
);
1795 case '3': nlattr
= LATTR_TOP
; goto lattr_common
;
1796 case '4': nlattr
= LATTR_BOT
; goto lattr_common
;
1797 case '5': nlattr
= LATTR_NORM
; goto lattr_common
;
1798 case '6': nlattr
= LATTR_WIDE
;
1801 ldata
= lineptr(curs
.y
);
1802 ldata
[cols
] &= ~LATTR_MODE
;
1803 ldata
[cols
] |= nlattr
;
1806 termstate
= TOPLEVEL
;
1809 termstate
= TOPLEVEL
;
1810 seen_disp_event
= TRUE
;
1813 move (curs
.x
, curs
.y
- 1, 1);
1816 move (curs
.x
, curs
.y
+ 1, 1);
1819 move (curs
.x
+ 1, curs
.y
, 1);
1822 move (curs
.x
- 1, curs
.y
, 1);
1825 cset_attr
[cset
=0] = ATTR_LINEDRW
;
1828 cset_attr
[cset
=0] = ATTR_ASCII
;
1835 scroll (0, rows
-1, -1, TRUE
);
1836 else if (curs
.y
> 0)
1842 erase_lots(FALSE
, FALSE
, TRUE
);
1846 erase_lots(TRUE
, FALSE
, TRUE
);
1849 /* XXX Print cursor line */
1852 /* XXX Start controller mode */
1855 /* XXX Stop controller mode */
1858 termstate
= VT52_Y1
;
1861 ldisc_send ("\033/Z", 3);
1864 app_keypad_keys
= TRUE
;
1867 app_keypad_keys
= FALSE
;
1870 /* XXX This should switch to VT100 mode not current or default
1871 * VT mode. But this will only have effect in a VT220+
1877 /* XXX Enter auto print mode */
1880 /* XXX Exit auto print mode */
1883 /* XXX Print screen */
1888 termstate
= VT52_Y2
;
1889 move(curs
.x
, c
-' ', 0);
1892 termstate
= TOPLEVEL
;
1893 move(c
-' ', curs
.y
, 0);
1896 if (selstate
!= NO_SELECTION
) {
1897 pos cursplus
= curs
;
1899 check_selection (curs
, cursplus
);
1906 * Compare two lines to determine whether they are sufficiently
1907 * alike to scroll-optimise one to the other. Return the degree of
1910 static int linecmp (unsigned long *a
, unsigned long *b
) {
1913 for (i
=n
=0; i
< cols
; i
++)
1914 n
+= (*a
++ == *b
++);
1919 * Given a context, update the window. Out of paranoia, we don't
1920 * allow WM_PAINT responses to do scrolling optimisations.
1922 static void do_paint (Context ctx
, int may_optimise
) {
1923 int i
, j
, start
, our_curs_y
;
1924 unsigned long attr
, rv
, cursor
;
1930 * Check the visual bell state.
1933 ticks
= GetTickCount();
1934 if (ticks
- vbell_timeout
>= 0)
1939 * screen array, disptop, scrtop,
1941 * cfg.blinkpc, blink_is_real, tblinker,
1942 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus
1946 if (blinker
|| !cfg
.blink_cur
)
1947 cursor
= ATTR_ACTCURS
;
1952 cursor
= ATTR_PASCURS
;
1954 cursor
|= ATTR_RIGHTCURS
;
1958 rv
= (!rvideo
^ !in_vbell ? ATTR_REVERSE
: 0);
1959 our_curs_y
= curs
.y
- disptop
;
1961 for (i
=0; i
<rows
; i
++) {
1962 unsigned long *ldata
;
1964 scrpos
.y
= i
+ disptop
;
1965 ldata
= lineptr(scrpos
.y
);
1966 lattr
= (ldata
[cols
] & LATTR_MODE
);
1967 for (j
=0; j
<=cols
; j
++) {
1968 unsigned long d
= ldata
[j
];
1969 int idx
= i
*(cols
+1)+j
;
1972 wanttext
[idx
] = lattr
| (((d
&~ ATTR_WRAPPED
) ^ rv
1973 ^ (posle(selstart
, scrpos
) &&
1974 poslt(scrpos
, selend
) ?
1975 ATTR_REVERSE
: 0)) |
1976 (i
==our_curs_y
&& j
==curs
.x ? cursor
: 0));
1977 if (blink_is_real
) {
1978 if (has_focus
&& tblinker
&& (wanttext
[idx
]&ATTR_BLINK
) )
1980 wanttext
[idx
] &= ATTR_MASK
;
1981 wanttext
[idx
] += ' ';
1983 wanttext
[idx
] &= ~ATTR_BLINK
;
1989 * We would perform scrolling optimisations in here, if they
1990 * didn't have a nasty tendency to cause the whole sodding
1991 * program to hang for a second at speed-critical moments.
1992 * We'll leave it well alone...
1995 for (i
=0; i
<rows
; i
++) {
1996 int idx
= i
*(cols
+1);
1997 int lattr
= (wanttext
[idx
+cols
] & LATTR_MODE
);
1999 for (j
=0; j
<=cols
; j
++,idx
++) {
2000 unsigned long t
= wanttext
[idx
];
2001 int needs_update
= (j
< cols
&& t
!= disptext
[idx
]);
2002 int keep_going
= (start
!= -1 && needs_update
&&
2003 (t
& ATTR_MASK
) == attr
&&
2004 j
-start
< sizeof(ch
));
2005 if (start
!= -1 && !keep_going
) {
2006 do_text (ctx
, start
, i
, ch
, j
-start
, attr
, lattr
);
2012 attr
= t
& ATTR_MASK
;
2014 ch
[j
-start
] = (char) (t
& CHAR_MASK
);
2022 * Flick the switch that says if blinking things should be shown or hidden.
2025 void term_blink(int flg
) {
2026 static long last_blink
= 0;
2027 static long last_tblink
= 0;
2028 long now
, blink_diff
;
2030 now
= GetTickCount();
2031 blink_diff
= now
-last_tblink
;
2033 /* Make sure the text blinks no more than 2Hz */
2034 if (blink_diff
<0 || blink_diff
>450)
2037 tblinker
= !tblinker
;
2046 blink_diff
= now
-last_blink
;
2048 /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */
2049 if (blink_diff
>=0 && blink_diff
<(long)GetCaretBlinkTime())
2057 * Invalidate the whole screen so it will be repainted in full.
2059 void term_invalidate(void) {
2062 for (i
=0; i
<rows
*(cols
+1); i
++)
2063 disptext
[i
] = ATTR_INVALID
;
2067 * Paint the window in response to a WM_PAINT message.
2069 void term_paint (Context ctx
, int l
, int t
, int r
, int b
) {
2070 int i
, j
, left
, top
, right
, bottom
;
2072 left
= l
/ font_width
;
2073 right
= (r
- 1) / font_width
;
2074 top
= t
/ font_height
;
2075 bottom
= (b
- 1) / font_height
;
2076 for (i
= top
; i
<= bottom
&& i
< rows
; i
++)
2078 if ( (disptext
[i
*(cols
+1)+cols
]&LATTR_MODE
) == LATTR_NORM
)
2079 for (j
= left
; j
<= right
&& j
< cols
; j
++)
2080 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2082 for (j
= left
/2; j
<= right
/2+1 && j
< cols
; j
++)
2083 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2086 /* This should happen soon enough, also for some reason it sometimes
2087 * fails to actually do anything when re-sizing ... painting the wrong
2089 do_paint (ctx, FALSE);
2094 * Attempt to scroll the scrollback. The second parameter gives the
2095 * position we want to scroll to; the first is +1 to denote that
2096 * this position is relative to the beginning of the scrollback, -1
2097 * to denote it is relative to the end, and 0 to denote that it is
2098 * relative to the current position.
2100 void term_scroll (int rel
, int where
) {
2101 int sbtop
= -count234(scrollback
);
2103 disptop
= (rel
< 0 ?
0 :
2104 rel
> 0 ? sbtop
: disptop
) + where
;
2105 if (disptop
< sbtop
)
2113 static void clipme(pos top
, pos bottom
, char *workbuf
) {
2114 char *wbptr
; /* where next char goes within workbuf */
2115 int wblen
= 0; /* workbuf len */
2116 int buflen
; /* amount of memory allocated to workbuf */
2118 if ( workbuf
!= NULL
) { /* user supplied buffer? */
2119 buflen
= -1; /* assume buffer passed in is big enough */
2120 wbptr
= workbuf
; /* start filling here */
2123 buflen
= 0; /* No data is available yet */
2125 while (poslt(top
, bottom
)) {
2127 unsigned long *ldata
= lineptr(top
.y
);
2133 if (!(ldata
[cols
] & ATTR_WRAPPED
)) {
2134 while ((ldata
[nlpos
.x
-1] & CHAR_MASK
) == 0x20 && poslt(top
, nlpos
))
2136 if (poslt(nlpos
, bottom
))
2139 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
2140 int ch
= (ldata
[top
.x
] & CHAR_MASK
);
2141 int set
= (ldata
[top
.x
] & CSET_MASK
);
2143 /* VT Specials -> ISO8859-1 for Cut&Paste */
2144 static const unsigned char poorman2
[] =
2145 "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 ";
2147 if (set
&& !cfg
.rawcnp
) {
2148 if (set
== ATTR_LINEDRW
&& ch
>= 0x60 && ch
< 0x7F) {
2150 if ((x
= poorman2
[2*(ch
-0x60)+1]) == ' ')
2152 ch
= (x
<<8) + poorman2
[2*(ch
-0x60)];
2157 if (cfg
.rawcnp
|| !!(ch
&0xE0)) {
2158 if ( wblen
== buflen
)
2160 workbuf
= srealloc(workbuf
, buflen
+= 100);
2161 wbptr
= workbuf
+ wblen
;
2164 *wbptr
++ = (unsigned char) ch
;
2172 for (i
=0; i
<sizeof(sel_nl
); i
++)
2174 if ( wblen
== buflen
)
2176 workbuf
= srealloc(workbuf
, buflen
+= 100);
2177 wbptr
= workbuf
+ wblen
;
2180 *wbptr
++ = sel_nl
[i
];
2186 write_clip (workbuf
, wblen
, FALSE
); /* transfer to clipboard */
2187 if ( buflen
> 0 ) /* indicates we allocated this buffer */
2191 void term_copyall (void) {
2193 top
.y
= -count234(scrollback
);
2195 clipme(top
, curs
, NULL
/* dynamic allocation */);
2199 * Spread the selection outwards according to the selection mode.
2201 static pos
sel_spread_half (pos p
, int dir
) {
2202 unsigned long *ldata
;
2205 ldata
= lineptr(p
.y
);
2210 * In this mode, every character is a separate unit, except
2211 * for runs of spaces at the end of a non-wrapping line.
2213 if (!(ldata
[cols
] & ATTR_WRAPPED
)) {
2214 unsigned long *q
= ldata
+cols
;
2215 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
2217 if (q
== ldata
+cols
)
2220 p
.x
= (dir
== -1 ? q
-ldata
: cols
- 1);
2225 * In this mode, the units are maximal runs of characters
2226 * whose `wordness' has the same value.
2228 wvalue
= wordness
[ldata
[p
.x
] & CHAR_MASK
];
2230 while (p
.x
< cols
&& wordness
[ldata
[p
.x
+1] & CHAR_MASK
] == wvalue
)
2233 while (p
.x
> 0 && wordness
[ldata
[p
.x
-1] & CHAR_MASK
] == wvalue
)
2239 * In this mode, every line is a unit.
2241 p
.x
= (dir
== -1 ?
0 : cols
- 1);
2247 static void sel_spread (void) {
2248 selstart
= sel_spread_half (selstart
, -1);
2250 selend
= sel_spread_half (selend
, +1);
2254 void term_mouse (Mouse_Button b
, Mouse_Action a
, int x
, int y
) {
2256 unsigned long *ldata
;
2259 if (y
>=rows
) y
= rows
-1;
2267 if (x
>=cols
) x
= cols
-1;
2269 selpoint
.y
= y
+ disptop
;
2271 ldata
= lineptr(selpoint
.y
);
2272 if ((ldata
[cols
]&LATTR_MODE
) != LATTR_NORM
)
2275 if (b
== MB_SELECT
&& a
== MA_CLICK
) {
2277 selstate
= ABOUT_TO
;
2278 selanchor
= selpoint
;
2280 } else if (b
== MB_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
2282 selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
2283 selstate
= DRAGGING
;
2284 selstart
= selanchor
= selpoint
;
2288 } else if ((b
== MB_SELECT
&& a
== MA_DRAG
) ||
2289 (b
== MB_EXTEND
&& a
!= MA_RELEASE
)) {
2290 if (selstate
== ABOUT_TO
&& poseq(selanchor
, selpoint
))
2292 if (b
== MB_EXTEND
&& a
!= MA_DRAG
&& selstate
== SELECTED
) {
2293 if (posdiff(selpoint
,selstart
) < posdiff(selend
,selstart
)/2) {
2297 selanchor
= selstart
;
2299 selstate
= DRAGGING
;
2301 if (selstate
!= ABOUT_TO
&& selstate
!= DRAGGING
)
2302 selanchor
= selpoint
;
2303 selstate
= DRAGGING
;
2304 if (poslt(selpoint
, selanchor
)) {
2305 selstart
= selpoint
;
2309 selstart
= selanchor
;
2314 } else if ((b
== MB_SELECT
|| b
== MB_EXTEND
) && a
== MA_RELEASE
) {
2315 if (selstate
== DRAGGING
) {
2317 * We've completed a selection. We now transfer the
2318 * data to the clipboard.
2320 clipme(selstart
, selend
, selspace
);
2321 selstate
= SELECTED
;
2323 selstate
= NO_SELECTION
;
2324 } else if (b
== MB_PASTE
&& (a
==MA_CLICK
|| a
==MA_2CLK
|| a
==MA_3CLK
)) {
2328 get_clip((void **) &data
, &len
);
2332 if (paste_buffer
) sfree(paste_buffer
);
2333 paste_pos
= paste_hold
= paste_len
= 0;
2334 paste_buffer
= smalloc(len
);
2337 while (p
< data
+len
) {
2338 while (p
< data
+len
&&
2339 !(p
<= data
+len
-sizeof(sel_nl
) &&
2340 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
2348 c
=xlat_kbd2tty(q
[i
]);
2349 paste_buffer
[paste_len
++] = c
;
2353 if (p
<= data
+len
-sizeof(sel_nl
) &&
2354 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
2355 paste_buffer
[paste_len
++] = '\r';
2356 p
+= sizeof(sel_nl
);
2361 /* Assume a small paste will be OK in one go. */
2362 if (paste_len
<256) {
2363 ldisc_send (paste_buffer
, paste_len
);
2364 if (paste_buffer
) sfree(paste_buffer
);
2366 paste_pos
= paste_hold
= paste_len
= 0;
2369 get_clip(NULL
, NULL
);
2375 void term_nopaste() {
2376 if(paste_len
== 0) return;
2377 sfree(paste_buffer
);
2383 static long last_paste
= 0;
2384 long now
, paste_diff
;
2386 if(paste_len
== 0) return;
2388 /* Don't wait forever to paste */
2390 now
= GetTickCount();
2391 paste_diff
= now
-last_paste
;
2392 if (paste_diff
>=0 && paste_diff
<450)
2397 while(paste_pos
<paste_len
)
2400 while (n
+ paste_pos
< paste_len
) {
2401 if (paste_buffer
[paste_pos
+ n
++] == '\r')
2404 ldisc_send (paste_buffer
+paste_pos
, n
);
2407 if (paste_pos
< paste_len
) {
2412 sfree(paste_buffer
);
2417 static void deselect (void) {
2418 selstate
= NO_SELECTION
;
2419 selstart
.x
= selstart
.y
= selend
.x
= selend
.y
= 0;
2422 void term_deselect (void) {
2427 int term_ldisc(int option
) {
2428 if (option
== LD_ECHO
) return term_echoing
;
2429 if (option
== LD_EDIT
) return term_editing
;
2434 * from_backend(), to get data from the backend for the terminal.
2436 void from_backend(int is_stderr
, char *data
, int len
) {
2438 if (inbuf_head
>= INBUF_SIZE
)
2440 inbuf
[inbuf_head
++] = *data
++;
2445 * Log session traffic.
2447 void logtraffic(unsigned char c
, int logmode
) {
2448 if (cfg
.logtype
> 0) {
2449 if (cfg
.logtype
== logmode
) {
2450 /* deferred open file from pgm start? */
2451 if (!lgfp
) logfopen();
2452 if (lgfp
) fputc (c
, lgfp
);
2457 /* open log file append/overwrite mode */
2458 void logfopen(void) {
2466 sprintf (writemod
, "wb"); /* default to rewrite */
2467 lgfp
= fopen(cfg
.logfilename
, "r"); /* file already present? */
2471 i
= askappend(cfg
.logfilename
);
2473 writemod
[0] = 'a'; /* set append mode */
2474 else if (i
== 0) { /* cancelled */
2476 cfg
.logtype
= 0; /* disable logging */
2481 lgfp
= fopen(cfg
.logfilename
, writemod
);
2482 if (lgfp
) { /* enter into event log */
2483 sprintf(buf
, "%s session log (%s mode) to file : ",
2484 (writemod
[0] == 'a') ?
"Appending" : "Writing new",
2485 (cfg
.logtype
== LGTYP_ASCII ?
"ASCII" :
2486 cfg
.logtype
== LGTYP_DEBUG ?
"raw" : "<ukwn>") );
2487 /* Make sure we do not exceed the output buffer size */
2488 strncat (buf
, cfg
.logfilename
, 128);
2489 buf
[strlen(buf
)] = '\0';
2492 /* --- write header line iinto log file */
2493 fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp
);
2496 strftime(buf
, 24, "%Y.%m.%d %H:%M:%S", tm
);
2498 fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp
);
2502 void logfclose (void) {
2503 if (lgfp
) { fclose(lgfp
); lgfp
= NULL
; }