b5b79e91d2dd445ca6c14542d29c029f25a68b7f
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;
354 scrollback
= newtree234(NULL
);
355 screen
= newtree234(NULL
);
360 * Resize the screen and scrollback. We only need to shift
361 * lines around within our data structures, because lineptr()
362 * will take care of resizing each individual line if
365 * - If the new screen and the old screen differ in length, we
366 * must shunt some lines in from the scrollback or out to
369 * - If doing that fails to provide us with enough material to
370 * fill the new screen (i.e. the number of rows needed in
371 * the new screen exceeds the total number in the previous
372 * screen+scrollback), we must invent some blank lines to
375 * - Then, if the new scrollback length is less than the
376 * amount of scrollback we actually have, we must throw some
379 sblen
= count234(scrollback
);
380 /* Do this loop to expand the screen if newrows > rows */
381 for (i
= rows
; i
< newrows
; i
++) {
383 line
= delpos234(scrollback
, --sblen
);
385 line
= smalloc(TSIZE
* (newcols
+2));
387 for (j
= 0; j
<= newcols
; j
++)
388 line
[j
+1] = ERASE_CHAR
;
390 addpos234(screen
, line
, 0);
392 /* Do this loop to shrink the screen if newrows < rows */
393 for (i
= newrows
; i
< rows
; i
++) {
394 line
= delpos234(screen
, 0);
395 addpos234(scrollback
, line
, sblen
++);
397 assert(count234(screen
) == newrows
);
398 while (sblen
> newsavelines
) {
399 line
= delpos234(scrollback
, 0);
403 assert(count234(scrollback
) <= newsavelines
);
406 newdisp
= smalloc (newrows
*(newcols
+1)*TSIZE
);
407 for (i
=0; i
<newrows
*(newcols
+1); i
++)
408 newdisp
[i
] = ATTR_INVALID
;
412 newwant
= smalloc (newrows
*(newcols
+1)*TSIZE
);
413 for (i
=0; i
<newrows
*(newcols
+1); i
++)
414 newwant
[i
] = ATTR_INVALID
;
418 newalt
= newtree234(NULL
);
419 for (i
=0; i
<newrows
; i
++) {
420 line
= smalloc(TSIZE
* (newcols
+2));
422 for (j
= 0; j
<= newcols
; j
++)
423 line
[j
+1] = erase_char
;
424 addpos234(newalt
, line
, i
);
427 while (NULL
!= (line
= delpos234(alt_screen
, 0)))
429 freetree234(alt_screen
);
434 selspace
= smalloc ( (newrows
+newsavelines
) * (newcols
+sizeof(sel_nl
)) );
436 tabs
= srealloc (tabs
, newcols
*sizeof(*tabs
));
439 for (i
= (cols
> 0 ? cols
: 0); i
< newcols
; i
++)
440 tabs
[i
] = (i
% 8 == 0 ? TRUE
: FALSE
);
444 curs
.y
+= newrows
- rows
;
447 if (curs
.y
>= newrows
)
449 if (curs
.x
>= newcols
)
452 wrapnext
= alt_wnext
= FALSE
;
456 savelines
= newsavelines
;
459 swap_screen(save_alt_which
);
468 static void swap_screen (int which
) {
472 if (which
== alt_which
)
477 ttr
= alt_screen
; alt_screen
= screen
; screen
= ttr
;
478 t
= curs
.x
; curs
.x
= alt_x
; alt_x
= t
;
479 t
= curs
.y
; curs
.y
= alt_y
; alt_y
= t
;
480 t
= marg_t
; marg_t
= alt_t
; alt_t
= t
;
481 t
= marg_b
; marg_b
= alt_b
; alt_b
= t
;
482 t
= dec_om
; dec_om
= alt_om
; alt_om
= t
;
483 t
= wrap
; wrap
= alt_wrap
; alt_wrap
= t
;
484 t
= wrapnext
; wrapnext
= alt_wnext
; alt_wnext
= t
;
485 t
= insert
; insert
= alt_ins
; alt_ins
= t
;
486 t
= cset
; cset
= alt_cset
; alt_cset
= t
;
492 * Update the scroll bar.
494 static void update_sbar(void) {
497 nscroll
= count234(scrollback
);
499 set_sbar (nscroll
+ rows
, nscroll
+ disptop
, rows
);
503 * Check whether the region bounded by the two pointers intersects
504 * the scroll region, and de-select the on-screen selection if so.
506 static void check_selection (pos from
, pos to
) {
507 if (poslt(from
, selend
) && poslt(selstart
, to
))
512 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
513 * for backward.) `sb' is TRUE if the scrolling is permitted to
514 * affect the scrollback buffer.
516 * NB this function invalidates all pointers into lines of the
517 * screen data structures. In particular, you MUST call fix_cpos
518 * after calling scroll() and before doing anything else that
519 * uses the cpos shortcut pointer.
521 static void scroll (int topline
, int botline
, int lines
, int sb
) {
522 unsigned long *line
, *line2
;
525 if (topline
!= 0 || alt_which
!= 0)
530 line
= delpos234(screen
, botline
);
531 for (i
= 0; i
< cols
; i
++)
532 line
[i
+1] = erase_char
;
534 addpos234(screen
, line
, topline
);
536 if (selstart
.y
>= topline
&& selstart
.y
<= botline
) {
538 if (selstart
.y
> botline
) {
539 selstart
.y
= botline
;
543 if (selend
.y
>= topline
&& selend
.y
<= botline
) {
545 if (selend
.y
> botline
) {
555 line
= delpos234(screen
, topline
);
556 if (sb
&& savelines
> 0) {
557 int sblen
= count234(scrollback
);
559 * We must add this line to the scrollback. We'll
560 * remove a line from the top of the scrollback to
561 * replace it, or allocate a new one if the
562 * scrollback isn't full.
564 if (sblen
== savelines
) {
565 sblen
--, line2
= delpos234(scrollback
, 0);
567 line2
= smalloc(TSIZE
* (cols
+2));
570 addpos234(scrollback
, line
, sblen
);
573 for (i
= 0; i
< cols
; i
++)
574 line
[i
+1] = erase_char
;
576 addpos234(screen
, line
, botline
);
578 if (selstart
.y
>= topline
&& selstart
.y
<= botline
) {
580 if (selstart
.y
< topline
) {
581 selstart
.y
= topline
;
585 if (selend
.y
>= topline
&& selend
.y
<= botline
) {
587 if (selend
.y
< topline
) {
599 * Move the cursor to a given position, clipping at boundaries. We
600 * may or may not want to clip at the scroll margin: marg_clip is 0
601 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
602 * even _being_ outside the margins.
604 static void move (int x
, int y
, int marg_clip
) {
610 if ((curs
.y
>= marg_t
|| marg_clip
== 2) && y
< marg_t
)
612 if ((curs
.y
<= marg_b
|| marg_clip
== 2) && y
> marg_b
)
626 * Save or restore the cursor and SGR mode.
628 static void save_cursor(int save
) {
631 save_attr
= curr_attr
;
633 save_csattr
= cset_attr
[cset
];
636 /* Make sure the window hasn't shrunk since the save */
637 if (curs
.x
>= cols
) curs
.x
= cols
-1;
638 if (curs
.y
>= rows
) curs
.y
= rows
-1;
640 curr_attr
= save_attr
;
642 cset_attr
[cset
] = save_csattr
;
644 if (use_bce
) erase_char
= (' ' |(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
649 * Erase a large portion of the screen: the whole screen, or the
650 * whole line, or parts thereof.
652 static void erase_lots (int line_only
, int from_begin
, int to_end
) {
655 unsigned long *ldata
;
676 check_selection (start
, end
);
678 /* Clear screen also forces a full window redraw, just in case. */
679 if (start
.y
== 0 && start
.x
== 0 && end
.y
== rows
)
682 ldata
= lineptr(start
.y
);
683 while (poslt(start
, end
)) {
684 if (start
.y
== cols
&& !erase_lattr
)
685 ldata
[start
.x
] &= ~ATTR_WRAPPED
;
687 ldata
[start
.x
] = erase_char
;
688 if (incpos(start
) && start
.y
< rows
)
689 ldata
= lineptr(start
.y
);
694 * Insert or delete characters within the current line. n is +ve if
695 * insertion is desired, and -ve for deletion.
697 static void insch (int n
) {
698 int dir
= (n
< 0 ?
-1 : +1);
701 unsigned long *ldata
;
703 n
= (n
< 0 ?
-n
: n
);
704 if (n
> cols
- curs
.x
)
706 m
= cols
- curs
.x
- n
;
708 cursplus
.x
= curs
.x
+ n
;
709 check_selection (curs
, cursplus
);
710 ldata
= lineptr(curs
.y
);
712 memmove (ldata
+ curs
.x
, ldata
+ curs
.x
+ n
, m
*TSIZE
);
714 ldata
[curs
.x
+ m
++] = erase_char
;
716 memmove (ldata
+ curs
.x
+ n
, ldata
+ curs
.x
, m
*TSIZE
);
718 ldata
[curs
.x
+ n
] = erase_char
;
723 * Toggle terminal mode `mode' to state `state'. (`query' indicates
724 * whether the mode is a DEC private one or a normal one.)
726 static void toggle_mode (int mode
, int query
, int state
) {
728 if (query
) switch (mode
) {
729 case 1: /* application cursor keys */
730 app_cursor_keys
= state
;
732 case 2: /* VT52 mode */
735 case 3: /* 80/132 columns */
737 request_resize (state ?
132 : 80, rows
, 1);
740 case 5: /* reverse video */
742 * Toggle reverse video. If we receive an OFF within the
743 * visual bell timeout period after an ON, we trigger an
744 * effective visual bell, so that ESC[?5hESC[?5l will
745 * always be an actually _visible_ visual bell.
747 ticks
= GetTickCount();
748 if (rvideo
&& !state
&& /* we're turning it off */
749 ticks
< rvbell_timeout
) { /* and it's not long since it was turned on */
750 in_vbell
= TRUE
; /* we may clear rvideo but we set in_vbell */
751 if (vbell_timeout
< rvbell_timeout
) /* don't move vbell end forward */
752 vbell_timeout
= rvbell_timeout
; /* vbell end is at least then */
753 } else if (!rvideo
&& state
) {
754 /* This is an ON, so we notice the time and save it. */
755 rvbell_timeout
= ticks
+ VBELL_TIMEOUT
;
758 seen_disp_event
= TRUE
;
759 if (state
) term_update();
761 case 6: /* DEC origin mode */
764 case 7: /* auto wrap */
767 case 8: /* auto key repeat */
770 case 10: /* set local edit mode */
771 term_editing
= state
;
772 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
774 case 25: /* enable/disable cursor */
775 compatibility2(OTHER
,VT220
);
777 seen_disp_event
= TRUE
;
779 case 47: /* alternate screen */
780 compatibility(OTHER
);
785 } else switch (mode
) {
786 case 4: /* set insert mode */
787 compatibility(VT102
);
790 case 12: /* set echo mode */
791 term_echoing
= !state
;
792 ldisc_send(NULL
, 0); /* cause ldisc to notice changes */
794 case 20: /* Return sends ... */
795 cr_lf_return
= state
;
801 * Process an OSC sequence: set window title or icon name.
803 static void do_osc(void) {
806 wordness
[(unsigned char)osc_string
[osc_strlen
]] = esc_args
[0];
808 osc_string
[osc_strlen
] = '\0';
809 switch (esc_args
[0]) {
812 set_icon (osc_string
);
813 if (esc_args
[0] == 1)
815 /* fall through: parameter 0 means set both */
818 set_title (osc_string
);
825 * Remove everything currently in `inbuf' and stick it up on the
826 * in-memory display. There's a big state machine in here to
827 * process escape sequences...
829 void term_out(void) {
832 for(inbuf_reap
= 0; inbuf_reap
< inbuf_head
; inbuf_reap
++)
834 c
= inbuf
[inbuf_reap
];
837 * Optionally log the session traffic to a file. Useful for
838 * debugging and possibly also useful for actual logging.
840 logtraffic((unsigned char)c
, LGTYP_DEBUG
);
842 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
843 * be able to display 8-bit characters, but I'll let that go 'cause
846 if( ( (c
&0x60) == 0 || c
== '\177') &&
847 termstate
< DO_CTRLS
&&
848 ( (c
&0x80) == 0 || has_compat(VT220
))) {
850 case '\005': /* terminal type query */
851 /* Strictly speaking this is VT100 but a VT100 defaults to
852 * no response. Other terminals respond at their option.
854 * Don't put a CR in the default string as this tends to
855 * upset some weird software.
857 * An xterm returns "xterm" (5 characters)
859 compatibility(ANSIMIN
);
861 char abuf
[256], *s
, *d
;
863 for(s
=cfg
.answerback
, d
=abuf
; *s
; s
++) {
866 if (*s
>= 'a' && *s
<= 'z')
867 *d
++ = (*s
- ('a'-1));
868 else if ((*s
>='@' && *s
<='_') ||
869 *s
== '?' || (*s
&0x80))
875 else if (*s
== '^') {
879 *d
++ = xlat_kbd2tty((unsigned char)*s
);
881 ldisc_send (abuf
, d
-abuf
);
886 struct beeptime
*newbeep
;
889 ticks
= GetTickCount();
891 if (!beep_overloaded
) {
892 newbeep
= smalloc(sizeof(struct beeptime
));
893 newbeep
->ticks
= ticks
;
894 newbeep
->next
= NULL
;
898 beeptail
->next
= newbeep
;
904 * Throw out any beeps that happened more than
908 beephead
->ticks
< ticks
- cfg
.bellovl_t
) {
909 struct beeptime
*tmp
= beephead
;
910 beephead
= tmp
->next
;
917 if (cfg
.bellovl
&& beep_overloaded
&&
918 ticks
-lastbeep
>= cfg
.bellovl_s
) {
920 * If we're currently overloaded and the
921 * last beep was more than s seconds ago,
922 * leave overload mode.
924 beep_overloaded
= FALSE
;
925 } else if (cfg
.bellovl
&& !beep_overloaded
&&
926 nbeeps
>= cfg
.bellovl_n
) {
928 * Now, if we have n or more beeps
929 * remaining in the queue, go into overload
932 beep_overloaded
= TRUE
;
937 * Perform an actual beep if we're not overloaded.
939 if ((!cfg
.bellovl
|| !beep_overloaded
) && cfg
.beep
!= 0) {
942 else if(cfg
.beep
== 2) {
944 vbell_timeout
= ticks
+ VBELL_TIMEOUT
;
952 if (curs
.x
== 0 && curs
.y
== 0)
954 else if (curs
.x
== 0 && curs
.y
> 0)
955 curs
.x
= cols
-1, curs
.y
--;
961 seen_disp_event
= TRUE
;
964 compatibility(VT100
);
968 compatibility(VT100
);
973 termstate
= VT52_ESC
;
975 compatibility(ANSIMIN
);
976 termstate
= SEEN_ESC
;
980 compatibility(VT220
);
981 termstate
= SEEN_CSI
;
983 esc_args
[0] = ARG_DEFAULT
;
987 compatibility(VT220
);
988 termstate
= SEEN_OSC
;
995 seen_disp_event
= TRUE
;
997 logtraffic((unsigned char)c
,LGTYP_ASCII
);
1001 compatibility(VT100
);
1003 if (curs
.y
== marg_b
)
1004 scroll (marg_t
, marg_b
, 1, TRUE
);
1005 else if (curs
.y
< rows
-1)
1011 seen_disp_event
= 1;
1013 logtraffic((unsigned char)c
,LGTYP_ASCII
);
1017 pos old_curs
= curs
;
1018 unsigned long *ldata
= lineptr(curs
.y
);
1022 } while (curs
.x
< cols
-1 && !tabs
[curs
.x
]);
1024 if ((ldata
[cols
] & LATTR_MODE
) != LATTR_NORM
)
1026 if (curs
.x
>= cols
/2)
1036 check_selection (old_curs
, curs
);
1038 seen_disp_event
= TRUE
;
1040 case '\177': /* Destructive backspace
1041 This does nothing on a real VT100 */
1042 compatibility(OTHER
);
1043 if (curs
.x
&& !wrapnext
) curs
.x
--;
1046 *cpos
= (' ' | curr_attr
| ATTR_ASCII
);
1050 else switch (termstate
) {
1052 /* Only graphic characters get this far, ctrls are stripped above */
1053 if (wrapnext
&& wrap
) {
1054 cpos
[1] |= ATTR_WRAPPED
;
1055 if (curs
.y
== marg_b
)
1056 scroll (marg_t
, marg_b
, 1, TRUE
);
1057 else if (curs
.y
< rows
-1)
1065 if (selstate
!= NO_SELECTION
) {
1066 pos cursplus
= curs
;
1068 check_selection (curs
, cursplus
);
1070 switch (cset_attr
[cset
]) {
1072 * Linedraw characters are different from 'ESC ( B'
1073 * only for a small range. For ones outside that
1074 * range, make sure we use the same font as well as
1075 * the same encoding.
1078 if (c
<0x5f || c
>0x7F)
1079 *cpos
++ = xlat_tty2scr((unsigned char)c
) | curr_attr
|
1082 *cpos
++ = ' ' | curr_attr
| ATTR_ASCII
;
1084 *cpos
++ = ((unsigned char)c
) | curr_attr
| ATTR_LINEDRW
;
1087 /* If UK-ASCII, make the '#' a LineDraw Pound */
1089 *cpos
++ = '}' | curr_attr
| ATTR_LINEDRW
;
1094 *cpos
= xlat_tty2scr((unsigned char)c
) | curr_attr
|
1095 (c
<= 0x7F ? cset_attr
[cset
] : ATTR_ASCII
);
1096 logtraffic((unsigned char)c
, LGTYP_ASCII
);
1101 if (curs
.x
== cols
) {
1106 seen_disp_event
= 1;
1110 termstate
= TOPLEVEL
;
1114 * This state is virtually identical to SEEN_ESC, with the
1115 * exception that we have an OSC sequence in the pipeline,
1116 * and _if_ we see a backslash, we process it.
1120 termstate
= TOPLEVEL
;
1123 /* else fall through */
1125 termstate
= TOPLEVEL
;
1127 case ' ': /* some weird sequence? */
1128 compatibility(VT220
);
1129 termstate
= IGNORE_NEXT
;
1131 case '[': /* enter CSI mode */
1132 termstate
= SEEN_CSI
;
1134 esc_args
[0] = ARG_DEFAULT
;
1137 case ']': /* xterm escape sequences */
1138 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1139 compatibility(OTHER
);
1140 termstate
= SEEN_OSC
;
1143 case '(': /* should set GL */
1144 compatibility(VT100
);
1147 case ')': /* should set GR */
1148 compatibility(VT100
);
1151 case '7': /* save cursor */
1152 compatibility(VT100
);
1155 case '8': /* restore cursor */
1156 compatibility(VT100
);
1157 save_cursor (FALSE
);
1158 seen_disp_event
= TRUE
;
1161 compatibility(VT100
);
1162 app_keypad_keys
= TRUE
;
1165 compatibility(VT100
);
1166 app_keypad_keys
= FALSE
;
1168 case 'D': /* exactly equivalent to LF */
1169 compatibility(VT100
);
1170 if (curs
.y
== marg_b
)
1171 scroll (marg_t
, marg_b
, 1, TRUE
);
1172 else if (curs
.y
< rows
-1)
1176 seen_disp_event
= TRUE
;
1178 case 'E': /* exactly equivalent to CR-LF */
1179 compatibility(VT100
);
1181 if (curs
.y
== marg_b
)
1182 scroll (marg_t
, marg_b
, 1, TRUE
);
1183 else if (curs
.y
< rows
-1)
1187 seen_disp_event
= TRUE
;
1189 case 'M': /* reverse index - backwards LF */
1190 compatibility(VT100
);
1191 if (curs
.y
== marg_t
)
1192 scroll (marg_t
, marg_b
, -1, TRUE
);
1193 else if (curs
.y
> 0)
1197 seen_disp_event
= TRUE
;
1199 case 'Z': /* terminal type query */
1200 compatibility(VT100
);
1201 ldisc_send (id_string
, strlen(id_string
));
1203 case 'c': /* restore power-on settings */
1204 compatibility(VT100
);
1207 request_resize (80, rows
, 1);
1212 seen_disp_event
= TRUE
;
1214 case '#': /* ESC # 8 fills screen with Es :-) */
1215 compatibility(VT100
);
1216 termstate
= SEEN_ESCHASH
;
1218 case 'H': /* set a tab */
1219 compatibility(VT100
);
1220 tabs
[curs
.x
] = TRUE
;
1225 termstate
= TOPLEVEL
; /* default */
1228 if (esc_nargs
<= ARGS_MAX
) {
1229 if (esc_args
[esc_nargs
-1] == ARG_DEFAULT
)
1230 esc_args
[esc_nargs
-1] = 0;
1231 esc_args
[esc_nargs
-1] =
1232 10 * esc_args
[esc_nargs
-1] + c
- '0';
1234 termstate
= SEEN_CSI
;
1238 if (++esc_nargs
<= ARGS_MAX
)
1239 esc_args
[esc_nargs
-1] = ARG_DEFAULT
;
1240 termstate
= SEEN_CSI
;
1244 if( esc_query
) esc_query
= -1;
1245 else if( c
== '?' ) esc_query
= TRUE
;
1247 termstate
= SEEN_CSI
;
1249 else switch (ANSI(c
,esc_query
)) {
1250 case 'A': /* move up N lines */
1251 move (curs
.x
, curs
.y
- def(esc_args
[0], 1), 1);
1252 seen_disp_event
= TRUE
;
1254 case 'e': /* move down N lines */
1255 compatibility(ANSI
);
1257 move (curs
.x
, curs
.y
+ def(esc_args
[0], 1), 1);
1258 seen_disp_event
= TRUE
;
1260 case 'a': /* move right N cols */
1261 compatibility(ANSI
);
1263 move (curs
.x
+ def(esc_args
[0], 1), curs
.y
, 1);
1264 seen_disp_event
= TRUE
;
1266 case 'D': /* move left N cols */
1267 move (curs
.x
- def(esc_args
[0], 1), curs
.y
, 1);
1268 seen_disp_event
= TRUE
;
1270 case 'E': /* move down N lines and CR */
1271 compatibility(ANSI
);
1272 move (0, curs
.y
+ def(esc_args
[0], 1), 1);
1273 seen_disp_event
= TRUE
;
1275 case 'F': /* move up N lines and CR */
1276 compatibility(ANSI
);
1277 move (0, curs
.y
- def(esc_args
[0], 1), 1);
1278 seen_disp_event
= TRUE
;
1280 case 'G': case '`': /* set horizontal posn */
1281 compatibility(ANSI
);
1282 move (def(esc_args
[0], 1) - 1, curs
.y
, 0);
1283 seen_disp_event
= TRUE
;
1285 case 'd': /* set vertical posn */
1286 compatibility(ANSI
);
1287 move (curs
.x
, (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1289 seen_disp_event
= TRUE
;
1291 case 'H': case 'f': /* set horz and vert posns at once */
1293 esc_args
[1] = ARG_DEFAULT
;
1294 move (def(esc_args
[1], 1) - 1,
1295 (dec_om ? marg_t
: 0) + def(esc_args
[0], 1) - 1,
1297 seen_disp_event
= TRUE
;
1299 case 'J': /* erase screen or parts of it */
1301 unsigned int i
= def(esc_args
[0], 0) + 1;
1304 erase_lots(FALSE
, !!(i
& 2), !!(i
& 1));
1307 seen_disp_event
= TRUE
;
1309 case 'K': /* erase line or parts of it */
1311 unsigned int i
= def(esc_args
[0], 0) + 1;
1314 erase_lots(TRUE
, !!(i
& 2), !!(i
& 1));
1316 seen_disp_event
= TRUE
;
1318 case 'L': /* insert lines */
1319 compatibility(VT102
);
1320 if (curs
.y
<= marg_b
)
1321 scroll (curs
.y
, marg_b
, -def(esc_args
[0], 1), FALSE
);
1323 seen_disp_event
= TRUE
;
1325 case 'M': /* delete lines */
1326 compatibility(VT102
);
1327 if (curs
.y
<= marg_b
)
1328 scroll (curs
.y
, marg_b
, def(esc_args
[0], 1), TRUE
);
1330 seen_disp_event
= TRUE
;
1332 case '@': /* insert chars */
1333 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1334 compatibility(VT102
);
1335 insch (def(esc_args
[0], 1));
1336 seen_disp_event
= TRUE
;
1338 case 'P': /* delete chars */
1339 compatibility(VT102
);
1340 insch (-def(esc_args
[0], 1));
1341 seen_disp_event
= TRUE
;
1343 case 'c': /* terminal type query */
1344 compatibility(VT100
);
1345 /* This is the response for a VT102 */
1346 ldisc_send (id_string
, strlen(id_string
));
1348 case 'n': /* cursor position query */
1349 if (esc_args
[0] == 6) {
1351 sprintf (buf
, "\033[%d;%dR", curs
.y
+ 1, curs
.x
+ 1);
1352 ldisc_send (buf
, strlen(buf
));
1354 else if (esc_args
[0] == 5) {
1355 ldisc_send ("\033[0n", 4);
1358 case 'h': /* toggle modes to high */
1360 compatibility(VT100
);
1363 for (i
=0; i
<esc_nargs
; i
++)
1364 toggle_mode (esc_args
[i
], esc_query
, TRUE
);
1367 case 'l': /* toggle modes to low */
1369 compatibility(VT100
);
1372 for (i
=0; i
<esc_nargs
; i
++)
1373 toggle_mode (esc_args
[i
], esc_query
, FALSE
);
1376 case 'g': /* clear tabs */
1377 compatibility(VT100
);
1378 if (esc_nargs
== 1) {
1379 if (esc_args
[0] == 0) {
1380 tabs
[curs
.x
] = FALSE
;
1381 } else if (esc_args
[0] == 3) {
1383 for (i
= 0; i
< cols
; i
++)
1388 case 'r': /* set scroll margins */
1389 compatibility(VT100
);
1390 if (esc_nargs
<= 2) {
1392 top
= def(esc_args
[0], 1) - 1;
1393 bot
= (esc_nargs
<= 1 || esc_args
[1] == 0 ? rows
:
1394 def(esc_args
[1], rows
)) - 1;
1397 /* VTTEST Bug 9 - if region is less than 2 lines
1398 * don't change region.
1405 * I used to think the cursor should be
1406 * placed at the top of the newly marginned
1407 * area. Apparently not: VMS TPU falls over
1410 * Well actually it should for Origin mode - RDB
1412 curs
.y
= (dec_om ? marg_t
: 0);
1414 seen_disp_event
= TRUE
;
1418 case 'm': /* set graphics rendition */
1421 * A VT100 without the AVO only had one attribute, either
1422 * underline or reverse video depending on the cursor type,
1423 * this was selected by CSI 7m.
1426 * This is DIM on the VT100-AVO and VT102
1428 * This is BLINK on the VT100-AVO and VT102+
1430 * This is INVIS on the VT100-AVO and VT102
1432 * This like 22 disables BOLD, DIM and INVIS
1434 * The ANSI colours appear on any terminal that has colour
1435 * (obviously) but the interaction between sgr0 and the
1436 * colours varies but is usually related to the background
1437 * colour erase item.
1438 * The interaction between colour attributes and the mono
1439 * ones is also very implementation dependent.
1441 * The 39 and 49 attributes are likely to be unimplemented.
1444 for (i
=0; i
<esc_nargs
; i
++) {
1445 switch (def(esc_args
[i
], 0)) {
1446 case 0: /* restore defaults */
1447 curr_attr
= ATTR_DEFAULT
; break;
1448 case 1: /* enable bold */
1449 compatibility(VT100AVO
);
1450 curr_attr
|= ATTR_BOLD
; break;
1451 case 21: /* (enable double underline) */
1452 compatibility(OTHER
);
1453 case 4: /* enable underline */
1454 compatibility(VT100AVO
);
1455 curr_attr
|= ATTR_UNDER
; break;
1456 case 5: /* enable blink */
1457 compatibility(VT100AVO
);
1458 curr_attr
|= ATTR_BLINK
; break;
1459 case 7: /* enable reverse video */
1460 curr_attr
|= ATTR_REVERSE
; break;
1461 case 22: /* disable bold */
1462 compatibility2(OTHER
,VT220
);
1463 curr_attr
&= ~ATTR_BOLD
; break;
1464 case 24: /* disable underline */
1465 compatibility2(OTHER
,VT220
);
1466 curr_attr
&= ~ATTR_UNDER
; break;
1467 case 25: /* disable blink */
1468 compatibility2(OTHER
,VT220
);
1469 curr_attr
&= ~ATTR_BLINK
; break;
1470 case 27: /* disable reverse video */
1471 compatibility2(OTHER
,VT220
);
1472 curr_attr
&= ~ATTR_REVERSE
; break;
1473 case 30: case 31: case 32: case 33:
1474 case 34: case 35: case 36: case 37:
1476 curr_attr
&= ~ATTR_FGMASK
;
1477 curr_attr
|= (esc_args
[i
] - 30) << ATTR_FGSHIFT
;
1479 case 39: /* default-foreground */
1480 curr_attr
&= ~ATTR_FGMASK
;
1481 curr_attr
|= ATTR_DEFFG
;
1483 case 40: case 41: case 42: case 43:
1484 case 44: case 45: case 46: case 47:
1486 curr_attr
&= ~ATTR_BGMASK
;
1487 curr_attr
|= (esc_args
[i
] - 40) << ATTR_BGSHIFT
;
1489 case 49: /* default-background */
1490 curr_attr
&= ~ATTR_BGMASK
;
1491 curr_attr
|= ATTR_DEFBG
;
1498 (curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
|ATTR_BLINK
))
1502 case 's': /* save cursor */
1505 case 'u': /* restore cursor */
1506 save_cursor (FALSE
);
1507 seen_disp_event
= TRUE
;
1509 case 't': /* set page size - ie window height */
1511 * VT340/VT420 sequence DECSLPP, DEC only allows values
1512 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1513 * illegal values (eg first arg 1..9) for window changing
1516 compatibility(VT340TEXT
);
1517 if (esc_nargs
<=1 && (esc_args
[0]<1 || esc_args
[0]>=24)) {
1518 request_resize (cols
, def(esc_args
[0], 24), 0);
1522 case ANSI('|', '*'):
1523 /* VT420 sequence DECSNLS
1524 * Set number of lines on screen
1525 * VT420 uses VGA like hardware and can support any size in
1526 * reasonable range (24..49 AIUI) with no default specified.
1528 compatibility(VT420
);
1529 if (esc_nargs
==1 && esc_args
[0]>0) {
1530 request_resize (cols
, def(esc_args
[0], cfg
.height
), 0);
1534 case ANSI('|', '$'):
1535 /* VT340/VT420 sequence DECSCPP
1536 * Set number of columns per page
1537 * Docs imply range is only 80 or 132, but I'll allow any.
1539 compatibility(VT340TEXT
);
1541 request_resize (def(esc_args
[0], cfg
.width
), rows
, 0);
1545 case 'X': /* write N spaces w/o moving cursor */
1546 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1547 compatibility(ANSIMIN
);
1549 int n
= def(esc_args
[0], 1);
1551 unsigned long *p
= cpos
;
1552 if (n
> cols
- curs
.x
)
1556 check_selection (curs
, cursplus
);
1559 seen_disp_event
= TRUE
;
1562 case 'x': /* report terminal characteristics */
1563 compatibility(VT100
);
1566 int i
= def(esc_args
[0], 0);
1567 if (i
== 0 || i
== 1) {
1568 strcpy (buf
, "\033[2;1;1;112;112;1;0x");
1570 ldisc_send (buf
, 20);
1575 compatibility(OTHER
);
1576 use_bce
= (esc_args
[0]<=0);
1577 erase_char
= ERASE_CHAR
;
1579 erase_char
= (' '|(curr_attr
&(ATTR_FGMASK
|ATTR_BGMASK
)));
1582 compatibility(OTHER
);
1583 blink_is_real
= (esc_args
[0]>=1);
1586 /* Allow the host to make this emulator a 'perfect' VT102.
1587 * This first appeared in the VT220, but we do need to get
1588 * back to PuTTY mode so I won't check it.
1590 * The arg in 40..42 are a PuTTY extension.
1591 * The 2nd arg, 8bit vs 7bit is not checked.
1593 * Setting VT102 mode should also change the Fkeys to
1594 * generate PF* codes as a real VT102 has no Fkeys.
1595 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1598 * Note ESC c will NOT change this!
1601 switch (esc_args
[0]) {
1602 case 61: compatibility_level
&= ~TM_VTXXX
;
1603 compatibility_level
|= TM_VT102
; break;
1604 case 62: compatibility_level
&= ~TM_VTXXX
;
1605 compatibility_level
|= TM_VT220
; break;
1607 default: if( esc_args
[0] > 60 && esc_args
[0] < 70 )
1608 compatibility_level
|= TM_VTXXX
;
1611 case 40: compatibility_level
&= TM_VTXXX
; break;
1612 case 41: compatibility_level
= TM_PUTTY
; break;
1613 case 42: compatibility_level
= TM_SCOANSI
; break;
1616 compatibility_level
= TM_PUTTY
; break;
1620 /* Change the response to CSI c */
1621 if (esc_args
[0] == 50) {
1624 strcpy(id_string
, "\033[?");
1625 for (i
=1; i
<esc_nargs
; i
++) {
1626 if (i
!=1) strcat(id_string
, ";");
1627 sprintf(lbuf
, "%d", esc_args
[i
]);
1628 strcat(id_string
, lbuf
);
1630 strcat(id_string
, "c");
1634 /* Is this a good idea ?
1635 * Well we should do a soft reset at this point ...
1637 if (!has_compat(VT420
) && has_compat(VT100
)) {
1638 if (reset_132
) request_resize (132, 24, 1);
1639 else request_resize ( 80, 24, 1);
1647 /* VT100 only here, checked above */
1650 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_GBCHR
;
1653 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_LINEDRW
;
1656 default: /* specifically, 'B' */
1657 cset_attr
[termstate
== SET_GL ?
0 : 1] = ATTR_ASCII
;
1660 if( !has_compat(VT220
) || c
!= '%' )
1661 termstate
= TOPLEVEL
;
1666 case 'P': /* Linux palette sequence */
1667 termstate
= SEEN_OSC_P
;
1670 case 'R': /* Linux palette reset */
1673 termstate
= TOPLEVEL
;
1675 case 'W': /* word-set */
1676 termstate
= SEEN_OSC_W
;
1679 case '0': case '1': case '2': case '3': case '4':
1680 case '5': case '6': case '7': case '8': case '9':
1681 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1685 * Grotty hack to support xterm and DECterm title
1686 * sequences concurrently.
1688 if (esc_args
[0] == 2) {
1692 /* else fall through */
1694 termstate
= OSC_STRING
;
1700 * This OSC stuff is EVIL. It takes just one character to get into
1701 * sysline mode and it's not initially obvious how to get out.
1702 * So I've added CR and LF as string aborts.
1703 * This shouldn't effect compatibility as I believe embedded
1704 * control characters are supposed to be interpreted (maybe?)
1705 * and they don't display anything useful anyway.
1709 if (c
== '\n' || c
== '\r') {
1710 termstate
= TOPLEVEL
;
1711 } else if (c
== 0234 || c
== '\007' ) {
1713 * These characters terminate the string; ST and BEL
1714 * terminate the sequence and trigger instant
1715 * processing of it, whereas ESC goes back to SEEN_ESC
1716 * mode unless it is followed by \, in which case it is
1717 * synonymous with ST in the first place.
1720 termstate
= TOPLEVEL
;
1721 } else if (c
== '\033')
1722 termstate
= OSC_MAYBE_ST
;
1723 else if (osc_strlen
< OSC_STR_MAX
)
1724 osc_string
[osc_strlen
++] = c
;
1728 int max
= (osc_strlen
== 0 ?
21 : 16);
1730 if (c
>= '0' && c
<= '9')
1732 else if (c
>= 'A' && c
<= 'A'+max
-10)
1734 else if (c
>= 'a' && c
<= 'a'+max
-10)
1737 termstate
= TOPLEVEL
;
1738 osc_string
[osc_strlen
++] = val
;
1739 if (osc_strlen
>= 7) {
1740 palette_set (osc_string
[0],
1741 osc_string
[1] * 16 + osc_string
[2],
1742 osc_string
[3] * 16 + osc_string
[4],
1743 osc_string
[5] * 16 + osc_string
[6]);
1745 termstate
= TOPLEVEL
;
1751 case '0': case '1': case '2': case '3': case '4':
1752 case '5': case '6': case '7': case '8': case '9':
1753 esc_args
[0] = 10 * esc_args
[0] + c
- '0';
1756 termstate
= OSC_STRING
;
1762 unsigned long nlattr
;
1763 unsigned long *ldata
;
1769 for (i
= 0; i
< rows
; i
++) {
1771 for (j
= 0; j
< cols
; j
++)
1772 ldata
[j
] = ATTR_DEFAULT
| 'E';
1776 seen_disp_event
= TRUE
;
1777 scrtop
.x
= scrtop
.y
= 0;
1778 scrbot
.x
= 0; scrbot
.y
= rows
;
1779 check_selection (scrtop
, scrbot
);
1782 case '3': nlattr
= LATTR_TOP
; goto lattr_common
;
1783 case '4': nlattr
= LATTR_BOT
; goto lattr_common
;
1784 case '5': nlattr
= LATTR_NORM
; goto lattr_common
;
1785 case '6': nlattr
= LATTR_WIDE
;
1788 ldata
= lineptr(curs
.y
);
1789 ldata
[cols
] &= ~LATTR_MODE
;
1790 ldata
[cols
] |= nlattr
;
1793 termstate
= TOPLEVEL
;
1796 termstate
= TOPLEVEL
;
1797 seen_disp_event
= TRUE
;
1800 move (curs
.x
, curs
.y
- 1, 1);
1803 move (curs
.x
, curs
.y
+ 1, 1);
1806 move (curs
.x
+ 1, curs
.y
, 1);
1809 move (curs
.x
- 1, curs
.y
, 1);
1812 cset_attr
[cset
=0] = ATTR_LINEDRW
;
1815 cset_attr
[cset
=0] = ATTR_ASCII
;
1822 scroll (0, rows
-1, -1, TRUE
);
1823 else if (curs
.y
> 0)
1829 erase_lots(FALSE
, FALSE
, TRUE
);
1833 erase_lots(TRUE
, FALSE
, TRUE
);
1836 /* XXX Print cursor line */
1839 /* XXX Start controller mode */
1842 /* XXX Stop controller mode */
1845 termstate
= VT52_Y1
;
1848 ldisc_send ("\033/Z", 3);
1851 app_keypad_keys
= TRUE
;
1854 app_keypad_keys
= FALSE
;
1857 /* XXX This should switch to VT100 mode not current or default
1858 * VT mode. But this will only have effect in a VT220+
1864 /* XXX Enter auto print mode */
1867 /* XXX Exit auto print mode */
1870 /* XXX Print screen */
1875 termstate
= VT52_Y2
;
1876 move(curs
.x
, c
-' ', 0);
1879 termstate
= TOPLEVEL
;
1880 move(c
-' ', curs
.y
, 0);
1883 if (selstate
!= NO_SELECTION
) {
1884 pos cursplus
= curs
;
1886 check_selection (curs
, cursplus
);
1893 * Compare two lines to determine whether they are sufficiently
1894 * alike to scroll-optimise one to the other. Return the degree of
1897 static int linecmp (unsigned long *a
, unsigned long *b
) {
1900 for (i
=n
=0; i
< cols
; i
++)
1901 n
+= (*a
++ == *b
++);
1906 * Given a context, update the window. Out of paranoia, we don't
1907 * allow WM_PAINT responses to do scrolling optimisations.
1909 static void do_paint (Context ctx
, int may_optimise
) {
1910 int i
, j
, start
, our_curs_y
;
1911 unsigned long attr
, rv
, cursor
;
1917 * Check the visual bell state.
1920 ticks
= GetTickCount();
1921 if (ticks
- vbell_timeout
>= 0)
1926 * screen array, disptop, scrtop,
1928 * cfg.blinkpc, blink_is_real, tblinker,
1929 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus
1933 if (blinker
|| !cfg
.blink_cur
)
1934 cursor
= ATTR_ACTCURS
;
1939 cursor
= ATTR_PASCURS
;
1941 cursor
|= ATTR_RIGHTCURS
;
1945 rv
= (!rvideo
^ !in_vbell ? ATTR_REVERSE
: 0);
1946 our_curs_y
= curs
.y
- disptop
;
1948 for (i
=0; i
<rows
; i
++) {
1949 unsigned long *ldata
;
1951 scrpos
.y
= i
+ disptop
;
1952 ldata
= lineptr(scrpos
.y
);
1953 lattr
= (ldata
[cols
] & LATTR_MODE
);
1954 for (j
=0; j
<=cols
; j
++) {
1955 unsigned long d
= ldata
[j
];
1956 int idx
= i
*(cols
+1)+j
;
1959 wanttext
[idx
] = lattr
| (((d
&~ ATTR_WRAPPED
) ^ rv
1960 ^ (posle(selstart
, scrpos
) &&
1961 poslt(scrpos
, selend
) ?
1962 ATTR_REVERSE
: 0)) |
1963 (i
==our_curs_y
&& j
==curs
.x ? cursor
: 0));
1964 if (blink_is_real
) {
1965 if (has_focus
&& tblinker
&& (wanttext
[idx
]&ATTR_BLINK
) )
1967 wanttext
[idx
] &= ATTR_MASK
;
1968 wanttext
[idx
] += ' ';
1970 wanttext
[idx
] &= ~ATTR_BLINK
;
1976 * We would perform scrolling optimisations in here, if they
1977 * didn't have a nasty tendency to cause the whole sodding
1978 * program to hang for a second at speed-critical moments.
1979 * We'll leave it well alone...
1982 for (i
=0; i
<rows
; i
++) {
1983 int idx
= i
*(cols
+1);
1984 int lattr
= (wanttext
[idx
+cols
] & LATTR_MODE
);
1986 for (j
=0; j
<=cols
; j
++,idx
++) {
1987 unsigned long t
= wanttext
[idx
];
1988 int needs_update
= (j
< cols
&& t
!= disptext
[idx
]);
1989 int keep_going
= (start
!= -1 && needs_update
&&
1990 (t
& ATTR_MASK
) == attr
&&
1991 j
-start
< sizeof(ch
));
1992 if (start
!= -1 && !keep_going
) {
1993 do_text (ctx
, start
, i
, ch
, j
-start
, attr
, lattr
);
1999 attr
= t
& ATTR_MASK
;
2001 ch
[j
-start
] = (char) (t
& CHAR_MASK
);
2009 * Flick the switch that says if blinking things should be shown or hidden.
2012 void term_blink(int flg
) {
2013 static long last_blink
= 0;
2014 static long last_tblink
= 0;
2015 long now
, blink_diff
;
2017 now
= GetTickCount();
2018 blink_diff
= now
-last_tblink
;
2020 /* Make sure the text blinks no more than 2Hz */
2021 if (blink_diff
<0 || blink_diff
>450)
2024 tblinker
= !tblinker
;
2033 blink_diff
= now
-last_blink
;
2035 /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */
2036 if (blink_diff
>=0 && blink_diff
<(long)GetCaretBlinkTime())
2044 * Invalidate the whole screen so it will be repainted in full.
2046 void term_invalidate(void) {
2049 for (i
=0; i
<rows
*(cols
+1); i
++)
2050 disptext
[i
] = ATTR_INVALID
;
2054 * Paint the window in response to a WM_PAINT message.
2056 void term_paint (Context ctx
, int l
, int t
, int r
, int b
) {
2057 int i
, j
, left
, top
, right
, bottom
;
2059 left
= l
/ font_width
;
2060 right
= (r
- 1) / font_width
;
2061 top
= t
/ font_height
;
2062 bottom
= (b
- 1) / font_height
;
2063 for (i
= top
; i
<= bottom
&& i
< rows
; i
++)
2065 if ( (disptext
[i
*(cols
+1)+cols
]&LATTR_MODE
) == LATTR_NORM
)
2066 for (j
= left
; j
<= right
&& j
< cols
; j
++)
2067 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2069 for (j
= left
/2; j
<= right
/2+1 && j
< cols
; j
++)
2070 disptext
[i
*(cols
+1)+j
] = ATTR_INVALID
;
2073 /* This should happen soon enough, also for some reason it sometimes
2074 * fails to actually do anything when re-sizing ... painting the wrong
2076 do_paint (ctx, FALSE);
2081 * Attempt to scroll the scrollback. The second parameter gives the
2082 * position we want to scroll to; the first is +1 to denote that
2083 * this position is relative to the beginning of the scrollback, -1
2084 * to denote it is relative to the end, and 0 to denote that it is
2085 * relative to the current position.
2087 void term_scroll (int rel
, int where
) {
2088 int sbtop
= -count234(scrollback
);
2090 disptop
= (rel
< 0 ?
0 :
2091 rel
> 0 ? sbtop
: disptop
) + where
;
2092 if (disptop
< sbtop
)
2100 static void clipme(pos top
, pos bottom
, char *workbuf
) {
2101 char *wbptr
; /* where next char goes within workbuf */
2102 int wblen
= 0; /* workbuf len */
2103 int buflen
; /* amount of memory allocated to workbuf */
2105 if ( workbuf
!= NULL
) { /* user supplied buffer? */
2106 buflen
= -1; /* assume buffer passed in is big enough */
2107 wbptr
= workbuf
; /* start filling here */
2110 buflen
= 0; /* No data is available yet */
2112 while (poslt(top
, bottom
)) {
2114 unsigned long *ldata
= lineptr(top
.y
);
2120 if (!(ldata
[cols
] & ATTR_WRAPPED
)) {
2121 while ((ldata
[nlpos
.x
-1] & CHAR_MASK
) == 0x20 && poslt(top
, nlpos
))
2123 if (poslt(nlpos
, bottom
))
2126 while (poslt(top
, bottom
) && poslt(top
, nlpos
)) {
2127 int ch
= (ldata
[top
.x
] & CHAR_MASK
);
2128 int set
= (ldata
[top
.x
] & CSET_MASK
);
2130 /* VT Specials -> ISO8859-1 for Cut&Paste */
2131 static const unsigned char poorman2
[] =
2132 "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 ";
2134 if (set
&& !cfg
.rawcnp
) {
2135 if (set
== ATTR_LINEDRW
&& ch
>= 0x60 && ch
< 0x7F) {
2137 if ((x
= poorman2
[2*(ch
-0x60)+1]) == ' ')
2139 ch
= (x
<<8) + poorman2
[2*(ch
-0x60)];
2144 if (cfg
.rawcnp
|| !!(ch
&0xE0)) {
2145 if ( wblen
== buflen
)
2147 workbuf
= srealloc(workbuf
, buflen
+= 100);
2148 wbptr
= workbuf
+ wblen
;
2151 *wbptr
++ = (unsigned char) ch
;
2159 for (i
=0; i
<sizeof(sel_nl
); i
++)
2161 if ( wblen
== buflen
)
2163 workbuf
= srealloc(workbuf
, buflen
+= 100);
2164 wbptr
= workbuf
+ wblen
;
2167 *wbptr
++ = sel_nl
[i
];
2173 write_clip (workbuf
, wblen
, FALSE
); /* transfer to clipboard */
2174 if ( buflen
> 0 ) /* indicates we allocated this buffer */
2178 void term_copyall (void) {
2180 top
.y
= -count234(scrollback
);
2182 clipme(top
, curs
, NULL
/* dynamic allocation */);
2186 * Spread the selection outwards according to the selection mode.
2188 static pos
sel_spread_half (pos p
, int dir
) {
2189 unsigned long *ldata
;
2192 ldata
= lineptr(p
.y
);
2197 * In this mode, every character is a separate unit, except
2198 * for runs of spaces at the end of a non-wrapping line.
2200 if (!(ldata
[cols
] & ATTR_WRAPPED
)) {
2201 unsigned long *q
= ldata
+cols
;
2202 while (q
> ldata
&& (q
[-1] & CHAR_MASK
) == 0x20)
2204 if (q
== ldata
+cols
)
2207 p
.x
= (dir
== -1 ? q
-ldata
: cols
- 1);
2212 * In this mode, the units are maximal runs of characters
2213 * whose `wordness' has the same value.
2215 wvalue
= wordness
[ldata
[p
.x
] & CHAR_MASK
];
2217 while (p
.x
< cols
&& wordness
[ldata
[p
.x
+1] & CHAR_MASK
] == wvalue
)
2220 while (p
.x
> 0 && wordness
[ldata
[p
.x
-1] & CHAR_MASK
] == wvalue
)
2226 * In this mode, every line is a unit.
2228 p
.x
= (dir
== -1 ?
0 : cols
- 1);
2234 static void sel_spread (void) {
2235 selstart
= sel_spread_half (selstart
, -1);
2237 selend
= sel_spread_half (selend
, +1);
2241 void term_mouse (Mouse_Button b
, Mouse_Action a
, int x
, int y
) {
2243 unsigned long *ldata
;
2246 if (y
>=rows
) y
= rows
-1;
2254 if (x
>=cols
) x
= cols
-1;
2256 selpoint
.y
= y
+ disptop
;
2258 ldata
= lineptr(selpoint
.y
);
2259 if ((ldata
[cols
]&LATTR_MODE
) != LATTR_NORM
)
2262 if (b
== MB_SELECT
&& a
== MA_CLICK
) {
2264 selstate
= ABOUT_TO
;
2265 selanchor
= selpoint
;
2267 } else if (b
== MB_SELECT
&& (a
== MA_2CLK
|| a
== MA_3CLK
)) {
2269 selmode
= (a
== MA_2CLK ? SM_WORD
: SM_LINE
);
2270 selstate
= DRAGGING
;
2271 selstart
= selanchor
= selpoint
;
2275 } else if ((b
== MB_SELECT
&& a
== MA_DRAG
) ||
2276 (b
== MB_EXTEND
&& a
!= MA_RELEASE
)) {
2277 if (selstate
== ABOUT_TO
&& poseq(selanchor
, selpoint
))
2279 if (b
== MB_EXTEND
&& a
!= MA_DRAG
&& selstate
== SELECTED
) {
2280 if (posdiff(selpoint
,selstart
) < posdiff(selend
,selstart
)/2) {
2284 selanchor
= selstart
;
2286 selstate
= DRAGGING
;
2288 if (selstate
!= ABOUT_TO
&& selstate
!= DRAGGING
)
2289 selanchor
= selpoint
;
2290 selstate
= DRAGGING
;
2291 if (poslt(selpoint
, selanchor
)) {
2292 selstart
= selpoint
;
2296 selstart
= selanchor
;
2301 } else if ((b
== MB_SELECT
|| b
== MB_EXTEND
) && a
== MA_RELEASE
) {
2302 if (selstate
== DRAGGING
) {
2304 * We've completed a selection. We now transfer the
2305 * data to the clipboard.
2307 clipme(selstart
, selend
, selspace
);
2308 selstate
= SELECTED
;
2310 selstate
= NO_SELECTION
;
2311 } else if (b
== MB_PASTE
&& (a
==MA_CLICK
|| a
==MA_2CLK
|| a
==MA_3CLK
)) {
2315 get_clip((void **) &data
, &len
);
2319 if (paste_buffer
) sfree(paste_buffer
);
2320 paste_pos
= paste_hold
= paste_len
= 0;
2321 paste_buffer
= smalloc(len
);
2324 while (p
< data
+len
) {
2325 while (p
< data
+len
&&
2326 !(p
<= data
+len
-sizeof(sel_nl
) &&
2327 !memcmp(p
, sel_nl
, sizeof(sel_nl
))))
2335 c
=xlat_kbd2tty(q
[i
]);
2336 paste_buffer
[paste_len
++] = c
;
2340 if (p
<= data
+len
-sizeof(sel_nl
) &&
2341 !memcmp(p
, sel_nl
, sizeof(sel_nl
))) {
2342 paste_buffer
[paste_len
++] = '\r';
2343 p
+= sizeof(sel_nl
);
2348 /* Assume a small paste will be OK in one go. */
2349 if (paste_len
<256) {
2350 ldisc_send (paste_buffer
, paste_len
);
2351 if (paste_buffer
) sfree(paste_buffer
);
2353 paste_pos
= paste_hold
= paste_len
= 0;
2356 get_clip(NULL
, NULL
);
2362 void term_nopaste() {
2363 if(paste_len
== 0) return;
2364 sfree(paste_buffer
);
2370 static long last_paste
= 0;
2371 long now
, paste_diff
;
2373 if(paste_len
== 0) return;
2375 /* Don't wait forever to paste */
2377 now
= GetTickCount();
2378 paste_diff
= now
-last_paste
;
2379 if (paste_diff
>=0 && paste_diff
<450)
2384 while(paste_pos
<paste_len
)
2387 while (n
+ paste_pos
< paste_len
) {
2388 if (paste_buffer
[paste_pos
+ n
++] == '\r')
2391 ldisc_send (paste_buffer
+paste_pos
, n
);
2394 if (paste_pos
< paste_len
) {
2399 sfree(paste_buffer
);
2404 static void deselect (void) {
2405 selstate
= NO_SELECTION
;
2406 selstart
.x
= selstart
.y
= selend
.x
= selend
.y
= 0;
2409 void term_deselect (void) {
2414 int term_ldisc(int option
) {
2415 if (option
== LD_ECHO
) return term_echoing
;
2416 if (option
== LD_EDIT
) return term_editing
;
2421 * from_backend(), to get data from the backend for the terminal.
2423 void from_backend(int is_stderr
, char *data
, int len
) {
2425 if (inbuf_head
>= INBUF_SIZE
)
2427 inbuf
[inbuf_head
++] = *data
++;
2432 * Log session traffic.
2434 void logtraffic(unsigned char c
, int logmode
) {
2435 if (cfg
.logtype
> 0) {
2436 if (cfg
.logtype
== logmode
) {
2437 /* deferred open file from pgm start? */
2438 if (!lgfp
) logfopen();
2439 if (lgfp
) fputc (c
, lgfp
);
2444 /* open log file append/overwrite mode */
2445 void logfopen(void) {
2453 sprintf (writemod
, "wb"); /* default to rewrite */
2454 lgfp
= fopen(cfg
.logfilename
, "r"); /* file already present? */
2458 i
= askappend(cfg
.logfilename
);
2460 writemod
[0] = 'a'; /* set append mode */
2461 else if (i
== 0) { /* cancelled */
2463 cfg
.logtype
= 0; /* disable logging */
2468 lgfp
= fopen(cfg
.logfilename
, writemod
);
2469 if (lgfp
) { /* enter into event log */
2470 sprintf(buf
, "%s session log (%s mode) to file : ",
2471 (writemod
[0] == 'a') ?
"Appending" : "Writing new",
2472 (cfg
.logtype
== LGTYP_ASCII ?
"ASCII" :
2473 cfg
.logtype
== LGTYP_DEBUG ?
"raw" : "<ukwn>") );
2474 /* Make sure we do not exceed the output buffer size */
2475 strncat (buf
, cfg
.logfilename
, 128);
2476 buf
[strlen(buf
)] = '\0';
2479 /* --- write header line iinto log file */
2480 fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp
);
2483 strftime(buf
, 24, "%Y.%m.%d %H:%M:%S", tm
);
2485 fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp
);
2489 void logfclose (void) {
2490 if (lgfp
) { fclose(lgfp
); lgfp
= NULL
; }