11 #define CL_ANSIMIN 0x0001 /* Codes in all ANSI like terminals. */
12 #define CL_VT100 0x0002 /* VT100 */
13 #define CL_VT100AVO 0x0004 /* VT100 +AVO; 132x24 (not 132x14) & attrs */
14 #define CL_VT102 0x0008 /* VT102 */
15 #define CL_VT220 0x0010 /* VT220 */
16 #define CL_VT320 0x0020 /* VT320 */
17 #define CL_VT420 0x0040 /* VT420 */
18 #define CL_VT510 0x0080 /* VT510, NB VT510 includes ANSI */
19 #define CL_VT340TEXT 0x0100 /* VT340 extensions that appear in the VT420 */
20 #define CL_SCOANSI 0x1000 /* SCOANSI not in ANSIMIN. */
21 #define CL_ANSI 0x2000 /* ANSI ECMA-48 not in the VT100..VT420 */
22 #define CL_OTHER 0x4000 /* Others, Xterm, linux, putty, dunno, etc */
24 #define TM_VT100 (CL_ANSIMIN|CL_VT100)
25 #define TM_VT100AVO (TM_VT100|CL_VT100AVO)
26 #define TM_VT102 (TM_VT100AVO|CL_VT102)
27 #define TM_VT220 (TM_VT102|CL_VT220)
28 #define TM_VTXXX (TM_VT220|CL_VT340TEXT|CL_VT510|CL_VT420|CL_VT320)
29 #define TM_SCOANSI (CL_ANSIMIN|CL_SCOANSI)
31 #define TM_PUTTY (0xFFFF)
33 #define compatibility(x) \
34 if ( ((CL_##x)&compatibility_level) == 0 ) { \
38 #define compatibility2(x,y) \
39 if ( ((CL_##x|CL_##y)&compatibility_level) == 0 ) { \
44 #define has_compat(x) ( ((CL_##x)&compatibility_level) != 0 )
46 static int compatibility_level = TM_PUTTY;
48 static tree234 *scrollback; /* lines scrolled off top of screen */
49 static tree234 *screen; /* lines on primary screen */
50 static tree234 *alt_screen; /* lines on alternate screen */
51 static int disptop; /* distance scrolled back (0 or negative) */
53 static unsigned long *cpos; /* cursor position (convenience) */
55 static unsigned long *disptext; /* buffer of text on real screen */
56 static unsigned long *wanttext; /* buffer of text we want on screen */
58 #define VBELL_TIMEOUT 100 /* millisecond duration of visual bell */
61 struct beeptime *next;
64 static struct beeptime *beephead, *beeptail;
69 static unsigned char *selspace; /* buffer for building selections in */
71 #define TSIZE (sizeof(unsigned long))
72 #define lineptr(x) ( (unsigned long *) \
73 ((x) >= 0 ? index234(screen, x) : \
74 index234(scrollback, (x)+count234(scrollback)) ) )
75 #define fix_cpos do { cpos = lineptr(curs.y) + curs.x; } while(0)
77 static unsigned long curr_attr, save_attr;
78 static unsigned long erase_char = ERASE_CHAR;
83 #define poslt(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x < (p2).x ) )
84 #define posle(p1,p2) ( (p1).y < (p2).y || ( (p1).y == (p2).y && (p1).x <= (p2).x ) )
85 #define poseq(p1,p2) ( (p1).y == (p2).y && (p1).x == (p2).x )
86 #define posdiff(p1,p2) ( ((p2).y - (p1).y) * (cols+1) + (p2).x - (p1).x )
87 #define incpos(p) ( (p).x == cols ? ((p).x = 0, (p).y++, 1) : ((p).x++, 0) )
88 #define decpos(p) ( (p).x == 0 ? ((p).x = cols, (p).y--, 1) : ((p).x--, 0) )
90 static pos curs; /* cursor */
91 static pos savecurs; /* saved cursor position */
92 static int marg_t, marg_b; /* scroll margins */
93 static int dec_om; /* DEC origin mode flag */
94 static int wrap, wrapnext; /* wrap flags */
95 static int insert; /* insert-mode flag */
96 static int cset; /* 0 or 1: which char set */
97 static int save_cset, save_csattr; /* saved with cursor position */
98 static int rvideo; /* global reverse video flag */
99 static int cursor_on; /* cursor enabled flag */
100 static int reset_132; /* Flag ESC c resets to 80 cols */
101 static int use_bce; /* Use Background coloured erase */
102 static int blinker; /* When blinking is the cursor on ? */
103 static int tblinker; /* When the blinking text is on */
104 static int blink_is_real; /* Actually blink blinking text */
105 static int term_echoing; /* Does terminal want local echo? */
106 static int term_editing; /* Does terminal want local edit? */
108 static unsigned long cset_attr[2];
111 * Saved settings on the alternate screen.
113 static int alt_x, alt_y, alt_om, alt_wrap, alt_wnext, alt_ins, alt_cset;
114 static int alt_t, alt_b;
115 static int alt_which;
117 #define ARGS_MAX 32 /* max # of esc sequence arguments */
118 #define ARG_DEFAULT 0 /* if an arg isn't specified */
119 #define def(a,d) ( (a) == ARG_DEFAULT ? (d) : (a) )
120 static int esc_args[ARGS_MAX];
121 static int esc_nargs;
122 static int esc_query;
123 #define ANSI(x,y) ((x)+((y)<<8))
124 #define ANSI_QUE(x) ANSI(x,TRUE)
126 #define OSC_STR_MAX 2048
127 static int osc_strlen;
128 static char osc_string[OSC_STR_MAX+1];
131 static char id_string[1024] = "\033[?6c";
133 static unsigned char *tabs;
147 OSC_STRING, OSC_MAYBE_ST,
155 NO_SELECTION, ABOUT_TO, DRAGGING, SELECTED
158 SM_CHAR, SM_WORD, SM_LINE
160 static pos selstart, selend, selanchor;
162 static short wordness[256] = {
163 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 */
164 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 */
165 1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,2, /* 45 */
166 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 */
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, /* 89 */
168 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 */
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, /* CD */
170 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 */
173 static unsigned char sel_nl[] = SEL_NL;
174 static char * paste_buffer = 0;
175 static int paste_len, paste_pos, paste_hold;
178 * Internal prototypes.
180 static void do_paint (Context, int);
181 static void erase_lots (int, int, int);
182 static void swap_screen (int);
183 static void update_sbar (void);
184 static void deselect (void);
185 /* log session to file stuff ... */
186 static FILE *lgfp = NULL;
187 static void logtraffic(unsigned char c, int logmode);
190 * Set up power-on settings for the terminal.
192 static void power_on(void) {
193 curs.x = curs.y = alt_x = alt_y = savecurs.x = savecurs.y = 0;
196 alt_b = marg_b = rows - 1;
201 for (i = 0; i < cols; i++)
202 tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
204 alt_om = dec_om = cfg.dec_om;
205 alt_wnext = wrapnext = alt_ins = insert = FALSE;
206 alt_wrap = wrap = cfg.wrap_mode;
208 cset_attr[0] = cset_attr[1] = ATTR_ASCII;
212 save_attr = curr_attr = ATTR_DEFAULT;
213 term_editing = term_echoing = FALSE;
214 ldisc_send(NULL, 0); /* cause ldisc to notice changes */
215 app_cursor_keys = cfg.app_cursor;
216 app_keypad_keys = cfg.app_keypad;
218 blink_is_real = cfg.blinktext;
219 erase_char = ERASE_CHAR;
223 for (i = 0; i < 256; i++)
224 wordness[i] = cfg.wordness[i];
228 erase_lots (FALSE, TRUE, TRUE);
230 erase_lots (FALSE, TRUE, TRUE);
235 * Force a screen update.
237 void term_update(void) {
241 if ( (seen_key_event && (cfg.scroll_on_key)) ||
242 (seen_disp_event && (cfg.scroll_on_disp)) ) {
243 disptop = 0; /* return to main screen */
244 seen_disp_event = seen_key_event = 0;
247 do_paint (ctx, TRUE);
248 sys_cursor(curs.x, curs.y - disptop);
254 * Same as power_on(), but an external function.
256 void term_pwron(void) {
265 * Clear the scrollback.
267 void term_clrsb(void) {
270 while ((line = delpos234(scrollback, 0)) != NULL) {
277 * Initialise the terminal.
279 void term_init(void) {
280 screen = alt_screen = scrollback = NULL;
282 disptext = wanttext = NULL;
288 beephead = beeptail = NULL;
291 beep_overloaded = FALSE;
295 * Set up the terminal for a given size.
297 void term_size(int newrows, int newcols, int newsavelines) {
298 tree234 *newsb, *newscreen, *newalt;
299 unsigned long *newdisp, *newwant, *oldline, *line;
301 int posn, oldposn, furthest_back, oldsbsize;
302 int save_alt_which = alt_which;
304 if (newrows == rows && newcols == cols && newsavelines == savelines)
305 return; /* nothing to do */
311 alt_b = marg_b = newrows - 1;
313 newsb = newtree234(NULL);
314 newscreen = newtree234(NULL);
315 ccols = (cols < newcols ? cols : newcols);
316 oldsbsize = scrollback ? count234(scrollback) : 0;
317 furthest_back = newrows - rows - oldsbsize;
318 if (furthest_back > 0)
320 if (furthest_back < -newsavelines)
321 furthest_back = -newsavelines;
322 for (posn = newrows; posn-- > furthest_back ;) {
323 oldposn = posn - newrows + rows;
324 if (rows == -1 || oldposn < -oldsbsize) {
325 line = smalloc(TSIZE * (newcols + 1));
326 for (j = 0; j < newcols; j++)
327 line[j] = erase_char;
330 oldline = (oldposn >= 0 ?
331 delpos234(screen, count234(screen)-1) :
332 delpos234(scrollback, count234(scrollback)-1));
333 if (newcols != cols) {
334 line = smalloc(TSIZE * (newcols + 1));
335 for (j = 0; j < ccols; j++)
336 line[j] = oldline[j];
337 for (j = ccols; j < newcols; j++)
338 line[j] = erase_char;
339 line[newcols] = oldline[cols] & LATTR_MODE;
346 addpos234(newscreen, line, 0);
348 addpos234(newsb, line, 0);
351 if (scrollback) freetree234(scrollback);
352 if (screen) freetree234(screen);
356 newdisp = smalloc (newrows*(newcols+1)*TSIZE);
357 for (i=0; i<newrows*(newcols+1); i++)
358 newdisp[i] = ATTR_INVALID;
362 newwant = smalloc (newrows*(newcols+1)*TSIZE);
363 for (i=0; i<newrows*(newcols+1); i++)
364 newwant[i] = ATTR_INVALID;
368 newalt = newtree234(NULL);
369 for (i=0; i<newrows; i++) {
370 line = smalloc(TSIZE * (newcols+1));
371 for (j = 0; j <= newcols; j++)
372 line[j] = erase_char;
373 addpos234(newalt, line, i);
376 while (NULL != (line = delpos234(alt_screen, 0)))
378 freetree234(alt_screen);
383 selspace = smalloc ( (newrows+newsavelines) * (newcols+sizeof(sel_nl)) );
385 tabs = srealloc (tabs, newcols*sizeof(*tabs));
388 for (i = (cols > 0 ? cols : 0); i < newcols; i++)
389 tabs[i] = (i % 8 == 0 ? TRUE : FALSE);
393 curs.y += newrows - rows;
396 if (curs.y >= newrows)
398 if (curs.x >= newcols)
401 wrapnext = alt_wnext = FALSE;
405 savelines = newsavelines;
408 swap_screen(save_alt_which);
417 static void swap_screen (int which) {
421 if (which == alt_which)
426 ttr = alt_screen; alt_screen = screen; screen = ttr;
427 t = curs.x; curs.x = alt_x; alt_x = t;
428 t = curs.y; curs.y = alt_y; alt_y = t;
429 t = marg_t; marg_t = alt_t; alt_t = t;
430 t = marg_b; marg_b = alt_b; alt_b = t;
431 t = dec_om; dec_om = alt_om; alt_om = t;
432 t = wrap; wrap = alt_wrap; alt_wrap = t;
433 t = wrapnext; wrapnext = alt_wnext; alt_wnext = t;
434 t = insert; insert = alt_ins; alt_ins = t;
435 t = cset; cset = alt_cset; alt_cset = t;
441 * Update the scroll bar.
443 static void update_sbar(void) {
446 nscroll = count234(scrollback);
448 set_sbar (nscroll + rows, nscroll + disptop, rows);
452 * Check whether the region bounded by the two pointers intersects
453 * the scroll region, and de-select the on-screen selection if so.
455 static void check_selection (pos from, pos to) {
456 if (poslt(from, selend) && poslt(selstart, to))
461 * Scroll the screen. (`lines' is +ve for scrolling forward, -ve
462 * for backward.) `sb' is TRUE if the scrolling is permitted to
463 * affect the scrollback buffer.
465 * NB this function invalidates all pointers into lines of the
466 * screen data structures. In particular, you MUST call fix_cpos
467 * after calling scroll() and before doing anything else that
468 * uses the cpos shortcut pointer.
470 static void scroll (int topline, int botline, int lines, int sb) {
471 unsigned long *line, *line2;
474 if (topline != 0 || alt_which != 0)
479 line = delpos234(screen, botline);
480 for (i = 0; i < cols; i++)
481 line[i] = erase_char;
483 addpos234(screen, line, topline);
485 if (selstart.y >= topline && selstart.y <= botline) {
487 if (selstart.y > botline) {
488 selstart.y = botline;
492 if (selend.y >= topline && selend.y <= botline) {
494 if (selend.y > botline) {
504 line = delpos234(screen, topline);
506 int sblen = count234(scrollback);
508 * We must add this line to the scrollback. We'll
509 * remove a line from the top of the scrollback to
510 * replace it, or allocate a new one if the
511 * scrollback isn't full.
513 if (sblen == savelines)
514 sblen--, line2 = delpos234(scrollback, 0);
516 line2 = smalloc(TSIZE * (cols+1));
517 addpos234(scrollback, line, sblen);
520 for (i = 0; i < cols; i++)
521 line[i] = erase_char;
523 addpos234(screen, line, botline);
525 if (selstart.y >= topline && selstart.y <= botline) {
527 if (selstart.y < topline) {
528 selstart.y = topline;
532 if (selend.y >= topline && selend.y <= botline) {
534 if (selend.y < topline) {
546 * Move the cursor to a given position, clipping at boundaries. We
547 * may or may not want to clip at the scroll margin: marg_clip is 0
548 * not to, 1 to disallow _passing_ the margins, and 2 to disallow
549 * even _being_ outside the margins.
551 static void move (int x, int y, int marg_clip) {
557 if ((curs.y >= marg_t || marg_clip == 2) && y < marg_t)
559 if ((curs.y <= marg_b || marg_clip == 2) && y > marg_b)
573 * Save or restore the cursor and SGR mode.
575 static void save_cursor(int save) {
578 save_attr = curr_attr;
580 save_csattr = cset_attr[cset];
583 /* Make sure the window hasn't shrunk since the save */
584 if (curs.x >= cols) curs.x = cols-1;
585 if (curs.y >= rows) curs.y = rows-1;
587 curr_attr = save_attr;
589 cset_attr[cset] = save_csattr;
591 if (use_bce) erase_char = (' ' |(curr_attr&(ATTR_FGMASK|ATTR_BGMASK)));
596 * Erase a large portion of the screen: the whole screen, or the
597 * whole line, or parts thereof.
599 static void erase_lots (int line_only, int from_begin, int to_end) {
602 unsigned long *ldata;
623 check_selection (start, end);
625 /* Clear screen also forces a full window redraw, just in case. */
626 if (start.y == 0 && start.x == 0 && end.y == rows)
629 ldata = lineptr(start.y);
630 while (poslt(start, end)) {
631 if (start.y == cols && !erase_lattr)
632 ldata[start.x] &= ~ATTR_WRAPPED;
634 ldata[start.x] = erase_char;
636 ldata = lineptr(start.y);
641 * Insert or delete characters within the current line. n is +ve if
642 * insertion is desired, and -ve for deletion.
644 static void insch (int n) {
645 int dir = (n < 0 ? -1 : +1);
648 unsigned long *ldata;
650 n = (n < 0 ? -n : n);
651 if (n > cols - curs.x)
653 m = cols - curs.x - n;
655 cursplus.x = curs.x + n;
656 check_selection (curs, cursplus);
657 ldata = lineptr(curs.y);
659 memmove (ldata + curs.x, ldata + curs.x + n, m*TSIZE);
661 ldata[curs.x + m++] = erase_char;
663 memmove (ldata + curs.x + n, ldata + curs.x, m*TSIZE);
665 ldata[curs.x + n] = erase_char;
670 * Toggle terminal mode `mode' to state `state'. (`query' indicates
671 * whether the mode is a DEC private one or a normal one.)
673 static void toggle_mode (int mode, int query, int state) {
674 if (query) switch (mode) {
675 case 1: /* application cursor keys */
676 app_cursor_keys = state;
678 case 2: /* VT52 mode */
681 case 3: /* 80/132 columns */
683 request_resize (state ? 132 : 80, rows, 1);
686 case 5: /* reverse video */
688 seen_disp_event = TRUE;
689 if (state) term_update();
691 case 6: /* DEC origin mode */
694 case 7: /* auto wrap */
697 case 8: /* auto key repeat */
700 case 10: /* set local edit mode */
701 term_editing = state;
702 ldisc_send(NULL, 0); /* cause ldisc to notice changes */
704 case 25: /* enable/disable cursor */
705 compatibility2(OTHER,VT220);
707 seen_disp_event = TRUE;
709 case 47: /* alternate screen */
710 compatibility(OTHER);
715 } else switch (mode) {
716 case 4: /* set insert mode */
717 compatibility(VT102);
720 case 12: /* set echo mode */
721 term_echoing = !state;
722 ldisc_send(NULL, 0); /* cause ldisc to notice changes */
724 case 20: /* Return sends ... */
725 cr_lf_return = state;
731 * Process an OSC sequence: set window title or icon name.
733 static void do_osc(void) {
736 wordness[(unsigned char)osc_string[osc_strlen]] = esc_args[0];
738 osc_string[osc_strlen] = '\0';
739 switch (esc_args[0]) {
742 set_icon (osc_string);
743 if (esc_args[0] == 1)
745 /* fall through: parameter 0 means set both */
748 set_title (osc_string);
755 * Remove everything currently in `inbuf' and stick it up on the
756 * in-memory display. There's a big state machine in here to
757 * process escape sequences...
759 void term_out(void) {
762 for(inbuf_reap = 0; inbuf_reap < inbuf_head; inbuf_reap++)
764 c = inbuf[inbuf_reap];
767 * Optionally log the session traffic to a file. Useful for
768 * debugging and possibly also useful for actual logging.
770 logtraffic((unsigned char)c, LGTYP_DEBUG);
772 /* Note only VT220+ are 8-bit VT102 is seven bit, it shouldn't even
773 * be able to display 8-bit characters, but I'll let that go 'cause
776 if( ( (c&0x60) == 0 || c == '\177') &&
777 termstate < DO_CTRLS &&
778 ( (c&0x80) == 0 || has_compat(VT220))) {
780 case '\005': /* terminal type query */
781 /* Strictly speaking this is VT100 but a VT100 defaults to
782 * no response. Other terminals respond at their option.
784 * Don't put a CR in the default string as this tends to
785 * upset some weird software.
787 * An xterm returns "xterm" (5 characters)
789 compatibility(ANSIMIN);
791 char abuf[256], *s, *d;
793 for(s=cfg.answerback, d=abuf; *s; s++) {
796 if (*s >= 'a' && *s <= 'z')
797 *d++ = (*s - ('a'-1));
798 else if ((*s >='@' && *s<='_') ||
799 *s == '?' || (*s&0x80))
805 else if (*s == '^') {
809 *d++ = xlat_kbd2tty((unsigned char)*s);
811 ldisc_send (abuf, d-abuf);
816 struct beeptime *newbeep;
819 ticks = GetTickCount();
821 if (!beep_overloaded) {
822 newbeep = smalloc(sizeof(struct beeptime));
823 newbeep->ticks = ticks;
824 newbeep->next = NULL;
828 beeptail->next = newbeep;
834 * Throw out any beeps that happened more than
838 beephead->ticks < ticks - cfg.bellovl_t*1000) {
839 struct beeptime *tmp = beephead;
840 beephead = tmp->next;
847 if (cfg.bellovl && beep_overloaded &&
848 ticks-lastbeep >= cfg.bellovl_s * 1000) {
850 * If we're currently overloaded and the
851 * last beep was more than s seconds ago,
852 * leave overload mode.
854 beep_overloaded = FALSE;
855 } else if (cfg.bellovl && !beep_overloaded &&
856 nbeeps >= cfg.bellovl_n) {
858 * Now, if we have n or more beeps
859 * remaining in the queue, go into overload
862 beep_overloaded = TRUE;
867 * Perform an actual beep if we're not overloaded.
869 if ((!cfg.bellovl || !beep_overloaded) && cfg.beep != 0) {
872 else if(cfg.beep == 2) {
874 vbell_timeout = ticks + VBELL_TIMEOUT;
882 if (curs.x == 0 && curs.y == 0)
884 else if (curs.x == 0 && curs.y > 0)
885 curs.x = cols-1, curs.y--;
891 seen_disp_event = TRUE;
894 compatibility(VT100);
898 compatibility(VT100);
903 termstate = VT52_ESC;
905 compatibility(ANSIMIN);
906 termstate = SEEN_ESC;
910 compatibility(VT220);
911 termstate = SEEN_CSI;
913 esc_args[0] = ARG_DEFAULT;
917 compatibility(VT220);
918 termstate = SEEN_OSC;
925 seen_disp_event = TRUE;
927 logtraffic((unsigned char)c,LGTYP_ASCII);
931 compatibility(VT100);
933 if (curs.y == marg_b)
934 scroll (marg_t, marg_b, 1, TRUE);
935 else if (curs.y < rows-1)
943 logtraffic((unsigned char)c,LGTYP_ASCII);
948 unsigned long *ldata = lineptr(curs.y);
952 } while (curs.x < cols-1 && !tabs[curs.x]);
954 if ((ldata[cols] & LATTR_MODE) != LATTR_NORM)
956 if (curs.x >= cols/2)
966 check_selection (old_curs, curs);
968 seen_disp_event = TRUE;
970 case '\177': /* Destructive backspace
971 This does nothing on a real VT100 */
972 compatibility(OTHER);
973 if (curs.x && !wrapnext) curs.x--;
976 *cpos = (' ' | curr_attr | ATTR_ASCII);
980 else switch (termstate) {
982 /* Only graphic characters get this far, ctrls are stripped above */
983 if (wrapnext && wrap) {
984 cpos[1] |= ATTR_WRAPPED;
985 if (curs.y == marg_b)
986 scroll (marg_t, marg_b, 1, TRUE);
987 else if (curs.y < rows-1)
995 if (selstate != NO_SELECTION) {
998 check_selection (curs, cursplus);
1000 switch (cset_attr[cset]) {
1002 * Linedraw characters are different from 'ESC ( B'
1003 * only for a small range. For ones outside that
1004 * range, make sure we use the same font as well as
1005 * the same encoding.
1008 if (c<0x5f || c>0x7F)
1009 *cpos++ = xlat_tty2scr((unsigned char)c) | curr_attr |
1012 *cpos++ = ' ' | curr_attr | ATTR_ASCII;
1014 *cpos++ = ((unsigned char)c) | curr_attr | ATTR_LINEDRW;
1017 /* If UK-ASCII, make the '#' a LineDraw Pound */
1019 *cpos++ = '}' | curr_attr | ATTR_LINEDRW;
1024 *cpos = xlat_tty2scr((unsigned char)c) | curr_attr |
1025 (c <= 0x7F ? cset_attr[cset] : ATTR_ASCII);
1026 logtraffic((unsigned char)c, LGTYP_ASCII);
1031 if (curs.x == cols) {
1036 seen_disp_event = 1;
1040 termstate = TOPLEVEL;
1044 * This state is virtually identical to SEEN_ESC, with the
1045 * exception that we have an OSC sequence in the pipeline,
1046 * and _if_ we see a backslash, we process it.
1050 termstate = TOPLEVEL;
1053 /* else fall through */
1055 termstate = TOPLEVEL;
1057 case ' ': /* some weird sequence? */
1058 compatibility(VT220);
1059 termstate = IGNORE_NEXT;
1061 case '[': /* enter CSI mode */
1062 termstate = SEEN_CSI;
1064 esc_args[0] = ARG_DEFAULT;
1067 case ']': /* xterm escape sequences */
1068 /* Compatibility is nasty here, xterm, linux, decterm yuk! */
1069 compatibility(OTHER);
1070 termstate = SEEN_OSC;
1073 case '(': /* should set GL */
1074 compatibility(VT100);
1077 case ')': /* should set GR */
1078 compatibility(VT100);
1081 case '7': /* save cursor */
1082 compatibility(VT100);
1085 case '8': /* restore cursor */
1086 compatibility(VT100);
1087 save_cursor (FALSE);
1088 seen_disp_event = TRUE;
1091 compatibility(VT100);
1092 app_keypad_keys = TRUE;
1095 compatibility(VT100);
1096 app_keypad_keys = FALSE;
1098 case 'D': /* exactly equivalent to LF */
1099 compatibility(VT100);
1100 if (curs.y == marg_b)
1101 scroll (marg_t, marg_b, 1, TRUE);
1102 else if (curs.y < rows-1)
1106 seen_disp_event = TRUE;
1108 case 'E': /* exactly equivalent to CR-LF */
1109 compatibility(VT100);
1111 if (curs.y == marg_b)
1112 scroll (marg_t, marg_b, 1, TRUE);
1113 else if (curs.y < rows-1)
1117 seen_disp_event = TRUE;
1119 case 'M': /* reverse index - backwards LF */
1120 compatibility(VT100);
1121 if (curs.y == marg_t)
1122 scroll (marg_t, marg_b, -1, TRUE);
1123 else if (curs.y > 0)
1127 seen_disp_event = TRUE;
1129 case 'Z': /* terminal type query */
1130 compatibility(VT100);
1131 ldisc_send (id_string, strlen(id_string));
1133 case 'c': /* restore power-on settings */
1134 compatibility(VT100);
1137 request_resize (80, rows, 1);
1142 seen_disp_event = TRUE;
1144 case '#': /* ESC # 8 fills screen with Es :-) */
1145 compatibility(VT100);
1146 termstate = SEEN_ESCHASH;
1148 case 'H': /* set a tab */
1149 compatibility(VT100);
1150 tabs[curs.x] = TRUE;
1155 termstate = TOPLEVEL; /* default */
1158 if (esc_nargs <= ARGS_MAX) {
1159 if (esc_args[esc_nargs-1] == ARG_DEFAULT)
1160 esc_args[esc_nargs-1] = 0;
1161 esc_args[esc_nargs-1] =
1162 10 * esc_args[esc_nargs-1] + c - '0';
1164 termstate = SEEN_CSI;
1168 if (++esc_nargs <= ARGS_MAX)
1169 esc_args[esc_nargs-1] = ARG_DEFAULT;
1170 termstate = SEEN_CSI;
1174 if( esc_query ) esc_query = -1;
1175 else if( c == '?' ) esc_query = TRUE;
1177 termstate = SEEN_CSI;
1179 else switch (ANSI(c,esc_query)) {
1180 case 'A': /* move up N lines */
1181 move (curs.x, curs.y - def(esc_args[0], 1), 1);
1182 seen_disp_event = TRUE;
1184 case 'e': /* move down N lines */
1185 compatibility(ANSI);
1187 move (curs.x, curs.y + def(esc_args[0], 1), 1);
1188 seen_disp_event = TRUE;
1190 case 'a': /* move right N cols */
1191 compatibility(ANSI);
1193 move (curs.x + def(esc_args[0], 1), curs.y, 1);
1194 seen_disp_event = TRUE;
1196 case 'D': /* move left N cols */
1197 move (curs.x - def(esc_args[0], 1), curs.y, 1);
1198 seen_disp_event = TRUE;
1200 case 'E': /* move down N lines and CR */
1201 compatibility(ANSI);
1202 move (0, curs.y + def(esc_args[0], 1), 1);
1203 seen_disp_event = TRUE;
1205 case 'F': /* move up N lines and CR */
1206 compatibility(ANSI);
1207 move (0, curs.y - def(esc_args[0], 1), 1);
1208 seen_disp_event = TRUE;
1210 case 'G': case '`': /* set horizontal posn */
1211 compatibility(ANSI);
1212 move (def(esc_args[0], 1) - 1, curs.y, 0);
1213 seen_disp_event = TRUE;
1215 case 'd': /* set vertical posn */
1216 compatibility(ANSI);
1217 move (curs.x, (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1,
1219 seen_disp_event = TRUE;
1221 case 'H': case 'f': /* set horz and vert posns at once */
1223 esc_args[1] = ARG_DEFAULT;
1224 move (def(esc_args[1], 1) - 1,
1225 (dec_om ? marg_t : 0) + def(esc_args[0], 1) - 1,
1227 seen_disp_event = TRUE;
1229 case 'J': /* erase screen or parts of it */
1231 unsigned int i = def(esc_args[0], 0) + 1;
1234 erase_lots(FALSE, !!(i & 2), !!(i & 1));
1237 seen_disp_event = TRUE;
1239 case 'K': /* erase line or parts of it */
1241 unsigned int i = def(esc_args[0], 0) + 1;
1244 erase_lots(TRUE, !!(i & 2), !!(i & 1));
1246 seen_disp_event = TRUE;
1248 case 'L': /* insert lines */
1249 compatibility(VT102);
1250 if (curs.y <= marg_b)
1251 scroll (curs.y, marg_b, -def(esc_args[0], 1), FALSE);
1253 seen_disp_event = TRUE;
1255 case 'M': /* delete lines */
1256 compatibility(VT102);
1257 if (curs.y <= marg_b)
1258 scroll (curs.y, marg_b, def(esc_args[0], 1), TRUE);
1260 seen_disp_event = TRUE;
1262 case '@': /* insert chars */
1263 /* XXX VTTEST says this is vt220, vt510 manual says vt102 */
1264 compatibility(VT102);
1265 insch (def(esc_args[0], 1));
1266 seen_disp_event = TRUE;
1268 case 'P': /* delete chars */
1269 compatibility(VT102);
1270 insch (-def(esc_args[0], 1));
1271 seen_disp_event = TRUE;
1273 case 'c': /* terminal type query */
1274 compatibility(VT100);
1275 /* This is the response for a VT102 */
1276 ldisc_send (id_string, strlen(id_string));
1278 case 'n': /* cursor position query */
1279 if (esc_args[0] == 6) {
1281 sprintf (buf, "\033[%d;%dR", curs.y + 1, curs.x + 1);
1282 ldisc_send (buf, strlen(buf));
1284 else if (esc_args[0] == 5) {
1285 ldisc_send ("\033[0n", 4);
1288 case 'h': /* toggle modes to high */
1290 compatibility(VT100);
1293 for (i=0; i<esc_nargs; i++)
1294 toggle_mode (esc_args[i], esc_query, TRUE);
1297 case 'l': /* toggle modes to low */
1299 compatibility(VT100);
1302 for (i=0; i<esc_nargs; i++)
1303 toggle_mode (esc_args[i], esc_query, FALSE);
1306 case 'g': /* clear tabs */
1307 compatibility(VT100);
1308 if (esc_nargs == 1) {
1309 if (esc_args[0] == 0) {
1310 tabs[curs.x] = FALSE;
1311 } else if (esc_args[0] == 3) {
1313 for (i = 0; i < cols; i++)
1318 case 'r': /* set scroll margins */
1319 compatibility(VT100);
1320 if (esc_nargs <= 2) {
1322 top = def(esc_args[0], 1) - 1;
1323 bot = (esc_nargs <= 1 || esc_args[1] == 0 ? rows :
1324 def(esc_args[1], rows)) - 1;
1327 /* VTTEST Bug 9 - if region is less than 2 lines
1328 * don't change region.
1335 * I used to think the cursor should be
1336 * placed at the top of the newly marginned
1337 * area. Apparently not: VMS TPU falls over
1340 * Well actually it should for Origin mode - RDB
1342 curs.y = (dec_om ? marg_t : 0);
1344 seen_disp_event = TRUE;
1348 case 'm': /* set graphics rendition */
1351 * A VT100 without the AVO only had one attribute, either
1352 * underline or reverse video depending on the cursor type,
1353 * this was selected by CSI 7m.
1356 * This is DIM on the VT100-AVO and VT102
1358 * This is BLINK on the VT100-AVO and VT102+
1360 * This is INVIS on the VT100-AVO and VT102
1362 * This like 22 disables BOLD, DIM and INVIS
1364 * The ANSI colours appear on any terminal that has colour
1365 * (obviously) but the interaction between sgr0 and the
1366 * colours varies but is usually related to the background
1367 * colour erase item.
1368 * The interaction between colour attributes and the mono
1369 * ones is also very implementation dependent.
1371 * The 39 and 49 attributes are likely to be unimplemented.
1374 for (i=0; i<esc_nargs; i++) {
1375 switch (def(esc_args[i], 0)) {
1376 case 0: /* restore defaults */
1377 curr_attr = ATTR_DEFAULT; break;
1378 case 1: /* enable bold */
1379 compatibility(VT100AVO);
1380 curr_attr |= ATTR_BOLD; break;
1381 case 21: /* (enable double underline) */
1382 compatibility(OTHER);
1383 case 4: /* enable underline */
1384 compatibility(VT100AVO);
1385 curr_attr |= ATTR_UNDER; break;
1386 case 5: /* enable blink */
1387 compatibility(VT100AVO);
1388 curr_attr |= ATTR_BLINK; break;
1389 case 7: /* enable reverse video */
1390 curr_attr |= ATTR_REVERSE; break;
1391 case 22: /* disable bold */
1392 compatibility2(OTHER,VT220);
1393 curr_attr &= ~ATTR_BOLD; break;
1394 case 24: /* disable underline */
1395 compatibility2(OTHER,VT220);
1396 curr_attr &= ~ATTR_UNDER; break;
1397 case 25: /* disable blink */
1398 compatibility2(OTHER,VT220);
1399 curr_attr &= ~ATTR_BLINK; break;
1400 case 27: /* disable reverse video */
1401 compatibility2(OTHER,VT220);
1402 curr_attr &= ~ATTR_REVERSE; break;
1403 case 30: case 31: case 32: case 33:
1404 case 34: case 35: case 36: case 37:
1406 curr_attr &= ~ATTR_FGMASK;
1407 curr_attr |= (esc_args[i] - 30) << ATTR_FGSHIFT;
1409 case 39: /* default-foreground */
1410 curr_attr &= ~ATTR_FGMASK;
1411 curr_attr |= ATTR_DEFFG;
1413 case 40: case 41: case 42: case 43:
1414 case 44: case 45: case 46: case 47:
1416 curr_attr &= ~ATTR_BGMASK;
1417 curr_attr |= (esc_args[i] - 40) << ATTR_BGSHIFT;
1419 case 49: /* default-background */
1420 curr_attr &= ~ATTR_BGMASK;
1421 curr_attr |= ATTR_DEFBG;
1428 (curr_attr&(ATTR_FGMASK|ATTR_BGMASK|ATTR_BLINK))
1432 case 's': /* save cursor */
1435 case 'u': /* restore cursor */
1436 save_cursor (FALSE);
1437 seen_disp_event = TRUE;
1439 case 't': /* set page size - ie window height */
1441 * VT340/VT420 sequence DECSLPP, DEC only allows values
1442 * 24/25/36/48/72/144 other emulators (eg dtterm) use
1443 * illegal values (eg first arg 1..9) for window changing
1446 compatibility(VT340TEXT);
1447 if (esc_nargs<=1 && (esc_args[0]<1 || esc_args[0]>=24)) {
1448 request_resize (cols, def(esc_args[0], 24), 0);
1452 case ANSI('|', '*'):
1453 /* VT420 sequence DECSNLS
1454 * Set number of lines on screen
1455 * VT420 uses VGA like hardware and can support any size in
1456 * reasonable range (24..49 AIUI) with no default specified.
1458 compatibility(VT420);
1459 if (esc_nargs==1 && esc_args[0]>0) {
1460 request_resize (cols, def(esc_args[0], cfg.height), 0);
1464 case ANSI('|', '$'):
1465 /* VT340/VT420 sequence DECSCPP
1466 * Set number of columns per page
1467 * Docs imply range is only 80 or 132, but I'll allow any.
1469 compatibility(VT340TEXT);
1471 request_resize (def(esc_args[0], cfg.width), rows, 0);
1475 case 'X': /* write N spaces w/o moving cursor */
1476 /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
1477 compatibility(ANSIMIN);
1479 int n = def(esc_args[0], 1);
1481 unsigned long *p = cpos;
1482 if (n > cols - curs.x)
1486 check_selection (curs, cursplus);
1489 seen_disp_event = TRUE;
1492 case 'x': /* report terminal characteristics */
1493 compatibility(VT100);
1496 int i = def(esc_args[0], 0);
1497 if (i == 0 || i == 1) {
1498 strcpy (buf, "\033[2;1;1;112;112;1;0x");
1500 ldisc_send (buf, 20);
1505 compatibility(OTHER);
1506 use_bce = (esc_args[0]<=0);
1507 erase_char = ERASE_CHAR;
1509 erase_char = (' '|(curr_attr&(ATTR_FGMASK|ATTR_BGMASK)));
1512 compatibility(OTHER);
1513 blink_is_real = (esc_args[0]>=1);
1516 /* Allow the host to make this emulator a 'perfect' VT102.
1517 * This first appeared in the VT220, but we do need to get
1518 * back to PuTTY mode so I won't check it.
1520 * The arg in 40..42 are a PuTTY extension.
1521 * The 2nd arg, 8bit vs 7bit is not checked.
1523 * Setting VT102 mode should also change the Fkeys to
1524 * generate PF* codes as a real VT102 has no Fkeys.
1525 * The VT220 does this, F11..F13 become ESC,BS,LF other Fkeys
1528 * Note ESC c will NOT change this!
1531 switch (esc_args[0]) {
1532 case 61: compatibility_level &= ~TM_VTXXX;
1533 compatibility_level |= TM_VT102; break;
1534 case 62: compatibility_level &= ~TM_VTXXX;
1535 compatibility_level |= TM_VT220; break;
1537 default: if( esc_args[0] > 60 && esc_args[0] < 70 )
1538 compatibility_level |= TM_VTXXX;
1541 case 40: compatibility_level &= TM_VTXXX; break;
1542 case 41: compatibility_level = TM_PUTTY; break;
1543 case 42: compatibility_level = TM_SCOANSI; break;
1546 compatibility_level = TM_PUTTY; break;
1550 /* Change the response to CSI c */
1551 if (esc_args[0] == 50) {
1554 strcpy(id_string, "\033[?");
1555 for (i=1; i<esc_nargs; i++) {
1556 if (i!=1) strcat(id_string, ";");
1557 sprintf(lbuf, "%d", esc_args[i]);
1558 strcat(id_string, lbuf);
1560 strcat(id_string, "c");
1564 /* Is this a good idea ?
1565 * Well we should do a soft reset at this point ...
1567 if (!has_compat(VT420) && has_compat(VT100)) {
1568 if (reset_132) request_resize (132, 24, 1);
1569 else request_resize ( 80, 24, 1);
1577 /* VT100 only here, checked above */
1580 cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_GBCHR;
1583 cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_LINEDRW;
1586 default: /* specifically, 'B' */
1587 cset_attr[termstate == SET_GL ? 0 : 1] = ATTR_ASCII;
1590 if( !has_compat(VT220) || c != '%' )
1591 termstate = TOPLEVEL;
1596 case 'P': /* Linux palette sequence */
1597 termstate = SEEN_OSC_P;
1600 case 'R': /* Linux palette reset */
1603 termstate = TOPLEVEL;
1605 case 'W': /* word-set */
1606 termstate = SEEN_OSC_W;
1609 case '0': case '1': case '2': case '3': case '4':
1610 case '5': case '6': case '7': case '8': case '9':
1611 esc_args[0] = 10 * esc_args[0] + c - '0';
1615 * Grotty hack to support xterm and DECterm title
1616 * sequences concurrently.
1618 if (esc_args[0] == 2) {
1622 /* else fall through */
1624 termstate = OSC_STRING;
1630 * This OSC stuff is EVIL. It takes just one character to get into
1631 * sysline mode and it's not initially obvious how to get out.
1632 * So I've added CR and LF as string aborts.
1633 * This shouldn't effect compatibility as I believe embedded
1634 * control characters are supposed to be interpreted (maybe?)
1635 * and they don't display anything useful anyway.
1639 if (c == '\n' || c == '\r') {
1640 termstate = TOPLEVEL;
1641 } else if (c == 0234 || c == '\007' ) {
1643 * These characters terminate the string; ST and BEL
1644 * terminate the sequence and trigger instant
1645 * processing of it, whereas ESC goes back to SEEN_ESC
1646 * mode unless it is followed by \, in which case it is
1647 * synonymous with ST in the first place.
1650 termstate = TOPLEVEL;
1651 } else if (c == '\033')
1652 termstate = OSC_MAYBE_ST;
1653 else if (osc_strlen < OSC_STR_MAX)
1654 osc_string[osc_strlen++] = c;
1658 int max = (osc_strlen == 0 ? 21 : 16);
1660 if (c >= '0' && c <= '9')
1662 else if (c >= 'A' && c <= 'A'+max-10)
1664 else if (c >= 'a' && c <= 'a'+max-10)
1667 termstate = TOPLEVEL;
1668 osc_string[osc_strlen++] = val;
1669 if (osc_strlen >= 7) {
1670 palette_set (osc_string[0],
1671 osc_string[1] * 16 + osc_string[2],
1672 osc_string[3] * 16 + osc_string[4],
1673 osc_string[5] * 16 + osc_string[6]);
1675 termstate = TOPLEVEL;
1681 case '0': case '1': case '2': case '3': case '4':
1682 case '5': case '6': case '7': case '8': case '9':
1683 esc_args[0] = 10 * esc_args[0] + c - '0';
1686 termstate = OSC_STRING;
1692 unsigned long nlattr;
1693 unsigned long *ldata;
1699 for (i = 0; i < rows; i++) {
1701 for (j = 0; j < cols; j++)
1702 ldata[j] = ATTR_DEFAULT | 'E';
1706 seen_disp_event = TRUE;
1707 scrtop.x = scrtop.y = 0;
1708 scrbot.x = 0; scrbot.y = rows;
1709 check_selection (scrtop, scrbot);
1712 case '3': nlattr = LATTR_TOP; goto lattr_common;
1713 case '4': nlattr = LATTR_BOT; goto lattr_common;
1714 case '5': nlattr = LATTR_NORM; goto lattr_common;
1715 case '6': nlattr = LATTR_WIDE;
1718 ldata = lineptr(curs.y);
1719 ldata[cols] &= ~LATTR_MODE;
1720 ldata[cols] |= nlattr;
1723 termstate = TOPLEVEL;
1726 termstate = TOPLEVEL;
1727 seen_disp_event = TRUE;
1730 move (curs.x, curs.y - 1, 1);
1733 move (curs.x, curs.y + 1, 1);
1736 move (curs.x + 1, curs.y, 1);
1739 move (curs.x - 1, curs.y, 1);
1742 cset_attr[cset=0] = ATTR_LINEDRW;
1745 cset_attr[cset=0] = ATTR_ASCII;
1752 scroll (0, rows-1, -1, TRUE);
1753 else if (curs.y > 0)
1759 erase_lots(FALSE, FALSE, TRUE);
1763 erase_lots(TRUE, FALSE, TRUE);
1766 /* XXX Print cursor line */
1769 /* XXX Start controller mode */
1772 /* XXX Stop controller mode */
1775 termstate = VT52_Y1;
1778 ldisc_send ("\033/Z", 3);
1781 app_keypad_keys = TRUE;
1784 app_keypad_keys = FALSE;
1787 /* XXX This should switch to VT100 mode not current or default
1788 * VT mode. But this will only have effect in a VT220+
1794 /* XXX Enter auto print mode */
1797 /* XXX Exit auto print mode */
1800 /* XXX Print screen */
1805 termstate = VT52_Y2;
1806 move(curs.x, c-' ', 0);
1809 termstate = TOPLEVEL;
1810 move(c-' ', curs.y, 0);
1813 if (selstate != NO_SELECTION) {
1814 pos cursplus = curs;
1816 check_selection (curs, cursplus);
1823 * Compare two lines to determine whether they are sufficiently
1824 * alike to scroll-optimise one to the other. Return the degree of
1827 static int linecmp (unsigned long *a, unsigned long *b) {
1830 for (i=n=0; i < cols; i++)
1831 n += (*a++ == *b++);
1836 * Given a context, update the window. Out of paranoia, we don't
1837 * allow WM_PAINT responses to do scrolling optimisations.
1839 static void do_paint (Context ctx, int may_optimise) {
1840 int i, j, start, our_curs_y;
1841 unsigned long attr, rv, cursor;
1847 * Check the visual bell state.
1850 ticks = GetTickCount();
1851 if (ticks - vbell_timeout >= 0)
1856 * screen array, disptop, scrtop,
1858 * cfg.blinkpc, blink_is_real, tblinker,
1859 * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus
1863 if (blinker || !cfg.blink_cur)
1864 cursor = ATTR_ACTCURS;
1869 cursor = ATTR_PASCURS;
1871 cursor |= ATTR_RIGHTCURS;
1875 rv = (!rvideo ^ !in_vbell ? ATTR_REVERSE : 0);
1876 our_curs_y = curs.y - disptop;
1878 for (i=0; i<rows; i++) {
1879 unsigned long *ldata;
1881 scrpos.y = i + disptop;
1882 ldata = lineptr(scrpos.y);
1883 lattr = (ldata[cols] & LATTR_MODE);
1884 for (j=0; j<=cols; j++) {
1885 unsigned long d = ldata[j];
1886 int idx = i*(cols+1)+j;
1889 wanttext[idx] = lattr | (((d &~ ATTR_WRAPPED) ^ rv
1890 ^ (posle(selstart, scrpos) &&
1891 poslt(scrpos, selend) ?
1892 ATTR_REVERSE : 0)) |
1893 (i==our_curs_y && j==curs.x ? cursor : 0));
1894 if (blink_is_real) {
1895 if (has_focus && tblinker && (wanttext[idx]&ATTR_BLINK) )
1897 wanttext[idx] &= ATTR_MASK;
1898 wanttext[idx] += ' ';
1900 wanttext[idx] &= ~ATTR_BLINK;
1906 * We would perform scrolling optimisations in here, if they
1907 * didn't have a nasty tendency to cause the whole sodding
1908 * program to hang for a second at speed-critical moments.
1909 * We'll leave it well alone...
1912 for (i=0; i<rows; i++) {
1913 int idx = i*(cols+1);
1914 int lattr = (wanttext[idx+cols] & LATTR_MODE);
1916 for (j=0; j<=cols; j++,idx++) {
1917 unsigned long t = wanttext[idx];
1918 int needs_update = (j < cols && t != disptext[idx]);
1919 int keep_going = (start != -1 && needs_update &&
1920 (t & ATTR_MASK) == attr &&
1921 j-start < sizeof(ch));
1922 if (start != -1 && !keep_going) {
1923 do_text (ctx, start, i, ch, j-start, attr, lattr);
1929 attr = t & ATTR_MASK;
1931 ch[j-start] = (char) (t & CHAR_MASK);
1939 * Flick the switch that says if blinking things should be shown or hidden.
1942 void term_blink(int flg) {
1943 static long last_blink = 0;
1944 static long last_tblink = 0;
1945 long now, blink_diff;
1947 now = GetTickCount();
1948 blink_diff = now-last_tblink;
1950 /* Make sure the text blinks no more than 2Hz */
1951 if (blink_diff<0 || blink_diff>450)
1954 tblinker = !tblinker;
1963 blink_diff = now-last_blink;
1965 /* Make sure the cursor blinks no faster than GetCaretBlinkTime() */
1966 if (blink_diff>=0 && blink_diff<(long)GetCaretBlinkTime())
1974 * Invalidate the whole screen so it will be repainted in full.
1976 void term_invalidate(void) {
1979 for (i=0; i<rows*(cols+1); i++)
1980 disptext[i] = ATTR_INVALID;
1984 * Paint the window in response to a WM_PAINT message.
1986 void term_paint (Context ctx, int l, int t, int r, int b) {
1987 int i, j, left, top, right, bottom;
1989 left = l / font_width;
1990 right = (r - 1) / font_width;
1991 top = t / font_height;
1992 bottom = (b - 1) / font_height;
1993 for (i = top; i <= bottom && i < rows ; i++)
1995 if ( (disptext[i*(cols+1)+cols]&LATTR_MODE) == LATTR_NORM)
1996 for (j = left; j <= right && j < cols ; j++)
1997 disptext[i*(cols+1)+j] = ATTR_INVALID;
1999 for (j = left/2; j <= right/2+1 && j < cols ; j++)
2000 disptext[i*(cols+1)+j] = ATTR_INVALID;
2003 /* This should happen soon enough, also for some reason it sometimes
2004 * fails to actually do anything when re-sizing ... painting the wrong
2006 do_paint (ctx, FALSE);
2011 * Attempt to scroll the scrollback. The second parameter gives the
2012 * position we want to scroll to; the first is +1 to denote that
2013 * this position is relative to the beginning of the scrollback, -1
2014 * to denote it is relative to the end, and 0 to denote that it is
2015 * relative to the current position.
2017 void term_scroll (int rel, int where) {
2018 int sbtop = -count234(scrollback);
2020 disptop = (rel < 0 ? 0 :
2021 rel > 0 ? sbtop : disptop) + where;
2022 if (disptop < sbtop)
2030 static void clipme(pos top, pos bottom, char *workbuf) {
2031 char *wbptr; /* where next char goes within workbuf */
2032 int wblen = 0; /* workbuf len */
2033 int buflen; /* amount of memory allocated to workbuf */
2035 if ( workbuf != NULL ) { /* user supplied buffer? */
2036 buflen = -1; /* assume buffer passed in is big enough */
2037 wbptr = workbuf; /* start filling here */
2040 buflen = 0; /* No data is available yet */
2042 while (poslt(top, bottom)) {
2044 unsigned long *ldata = lineptr(top.y);
2050 if (!(ldata[cols] & ATTR_WRAPPED)) {
2051 while ((ldata[nlpos.x-1] & CHAR_MASK) == 0x20 && poslt(top, nlpos))
2053 if (poslt(nlpos, bottom))
2056 while (poslt(top, bottom) && poslt(top, nlpos)) {
2057 int ch = (ldata[top.x] & CHAR_MASK);
2058 int set = (ldata[top.x] & CSET_MASK);
2060 /* VT Specials -> ISO8859-1 for Cut&Paste */
2061 static const unsigned char poorman2[] =
2062 "* # HTFFCRLF\xB0 \xB1 NLVT+ + + + + - - - - - + + + + | <=>=PI!=\xA3 \xB7 ";
2064 if (set && !cfg.rawcnp) {
2065 if (set == ATTR_LINEDRW && ch >= 0x60 && ch < 0x7F) {
2067 if ((x = poorman2[2*(ch-0x60)+1]) == ' ')
2069 ch = (x<<8) + poorman2[2*(ch-0x60)];
2074 if (cfg.rawcnp || !!(ch&0xE0)) {
2075 if ( wblen == buflen )
2077 workbuf = srealloc(workbuf, buflen += 100);
2078 wbptr = workbuf + wblen;
2081 *wbptr++ = (unsigned char) ch;
2089 for (i=0; i<sizeof(sel_nl); i++)
2091 if ( wblen == buflen )
2093 workbuf = srealloc(workbuf, buflen += 100);
2094 wbptr = workbuf + wblen;
2097 *wbptr++ = sel_nl[i];
2103 write_clip (workbuf, wblen, FALSE); /* transfer to clipboard */
2104 if ( buflen > 0 ) /* indicates we allocated this buffer */
2108 void term_copyall (void) {
2110 top.y = -count234(scrollback);
2112 clipme(top, curs, NULL /* dynamic allocation */);
2116 * Spread the selection outwards according to the selection mode.
2118 static pos sel_spread_half (pos p, int dir) {
2119 unsigned long *ldata;
2122 ldata = lineptr(p.y);
2127 * In this mode, every character is a separate unit, except
2128 * for runs of spaces at the end of a non-wrapping line.
2130 if (!(ldata[cols] & ATTR_WRAPPED)) {
2131 unsigned long *q = ldata+cols;
2132 while (q > ldata && (q[-1] & CHAR_MASK) == 0x20)
2134 if (q == ldata+cols)
2137 p.x = (dir == -1 ? q-ldata : cols - 1);
2142 * In this mode, the units are maximal runs of characters
2143 * whose `wordness' has the same value.
2145 wvalue = wordness[ldata[p.x] & CHAR_MASK];
2147 while (p.x < cols && wordness[ldata[p.x+1] & CHAR_MASK] == wvalue)
2150 while (p.x > 0 && wordness[ldata[p.x-1] & CHAR_MASK] == wvalue)
2156 * In this mode, every line is a unit.
2158 p.x = (dir == -1 ? 0 : cols - 1);
2164 static void sel_spread (void) {
2165 selstart = sel_spread_half (selstart, -1);
2167 selend = sel_spread_half (selend, +1);
2171 void term_mouse (Mouse_Button b, Mouse_Action a, int x, int y) {
2173 unsigned long *ldata;
2176 if (y>=rows) y = rows-1;
2184 if (x>=cols) x = cols-1;
2186 selpoint.y = y + disptop;
2188 ldata = lineptr(selpoint.y);
2189 if ((ldata[cols]&LATTR_MODE) != LATTR_NORM)
2192 if (b == MB_SELECT && a == MA_CLICK) {
2194 selstate = ABOUT_TO;
2195 selanchor = selpoint;
2197 } else if (b == MB_SELECT && (a == MA_2CLK || a == MA_3CLK)) {
2199 selmode = (a == MA_2CLK ? SM_WORD : SM_LINE);
2200 selstate = DRAGGING;
2201 selstart = selanchor = selpoint;
2205 } else if ((b == MB_SELECT && a == MA_DRAG) ||
2206 (b == MB_EXTEND && a != MA_RELEASE)) {
2207 if (selstate == ABOUT_TO && poseq(selanchor, selpoint))
2209 if (b == MB_EXTEND && a != MA_DRAG && selstate == SELECTED) {
2210 if (posdiff(selpoint,selstart) < posdiff(selend,selstart)/2) {
2214 selanchor = selstart;
2216 selstate = DRAGGING;
2218 if (selstate != ABOUT_TO && selstate != DRAGGING)
2219 selanchor = selpoint;
2220 selstate = DRAGGING;
2221 if (poslt(selpoint, selanchor)) {
2222 selstart = selpoint;
2226 selstart = selanchor;
2231 } else if ((b == MB_SELECT || b == MB_EXTEND) && a == MA_RELEASE) {
2232 if (selstate == DRAGGING) {
2234 * We've completed a selection. We now transfer the
2235 * data to the clipboard.
2237 clipme(selstart, selend, selspace);
2238 selstate = SELECTED;
2240 selstate = NO_SELECTION;
2241 } else if (b == MB_PASTE && (a==MA_CLICK || a==MA_2CLK || a==MA_3CLK)) {
2245 get_clip((void **) &data, &len);
2249 if (paste_buffer) sfree(paste_buffer);
2250 paste_pos = paste_hold = paste_len = 0;
2251 paste_buffer = smalloc(len);
2254 while (p < data+len) {
2255 while (p < data+len &&
2256 !(p <= data+len-sizeof(sel_nl) &&
2257 !memcmp(p, sel_nl, sizeof(sel_nl))))
2265 c=xlat_kbd2tty(q[i]);
2266 paste_buffer[paste_len++] = c;
2270 if (p <= data+len-sizeof(sel_nl) &&
2271 !memcmp(p, sel_nl, sizeof(sel_nl))) {
2272 paste_buffer[paste_len++] = '\r';
2273 p += sizeof(sel_nl);
2278 /* Assume a small paste will be OK in one go. */
2279 if (paste_len<256) {
2280 ldisc_send (paste_buffer, paste_len);
2281 if (paste_buffer) sfree(paste_buffer);
2283 paste_pos = paste_hold = paste_len = 0;
2286 get_clip(NULL, NULL);
2292 void term_nopaste() {
2293 if(paste_len == 0) return;
2294 sfree(paste_buffer);
2300 static long last_paste = 0;
2301 long now, paste_diff;
2303 if(paste_len == 0) return;
2305 /* Don't wait forever to paste */
2307 now = GetTickCount();
2308 paste_diff = now-last_paste;
2309 if (paste_diff>=0 && paste_diff<450)
2314 while(paste_pos<paste_len)
2317 while (n + paste_pos < paste_len) {
2318 if (paste_buffer[paste_pos + n++] == '\r')
2321 ldisc_send (paste_buffer+paste_pos, n);
2324 if (paste_pos < paste_len) {
2329 sfree(paste_buffer);
2334 static void deselect (void) {
2335 selstate = NO_SELECTION;
2336 selstart.x = selstart.y = selend.x = selend.y = 0;
2339 void term_deselect (void) {
2344 int term_ldisc(int option) {
2345 if (option == LD_ECHO) return term_echoing;
2346 if (option == LD_EDIT) return term_editing;
2351 * from_backend(), to get data from the backend for the terminal.
2353 void from_backend(int is_stderr, char *data, int len) {
2355 if (inbuf_head >= INBUF_SIZE)
2357 inbuf[inbuf_head++] = *data++;
2362 * Log session traffic.
2364 void logtraffic(unsigned char c, int logmode) {
2365 if (cfg.logtype > 0) {
2366 if (cfg.logtype == logmode) {
2367 /* deferred open file from pgm start? */
2368 if (!lgfp) logfopen();
2369 if (lgfp) fputc (c, lgfp);
2374 /* open log file append/overwrite mode */
2375 void logfopen(void) {
2383 sprintf (writemod, "wb"); /* default to rewrite */
2384 lgfp = fopen(cfg.logfilename, "r"); /* file already present? */
2388 i = askappend(cfg.logfilename);
2390 writemod[0] = 'a'; /* set append mode */
2391 else if (i == 0) { /* cancelled */
2393 cfg.logtype = 0; /* disable logging */
2398 lgfp = fopen(cfg.logfilename, writemod);
2399 if (lgfp) { /* enter into event log */
2400 sprintf(buf, "%s session log (%s mode) to file : ",
2401 (writemod[0] == 'a') ? "Appending" : "Writing new",
2402 (cfg.logtype == LGTYP_ASCII ? "ASCII" :
2403 cfg.logtype == LGTYP_DEBUG ? "raw" : "<ukwn>") );
2404 /* Make sure we do not exceed the output buffer size */
2405 strncat (buf, cfg.logfilename, 128);
2406 buf[strlen(buf)] = '\0';
2409 /* --- write header line iinto log file */
2410 fputs ("=~=~=~=~=~=~=~=~=~=~=~= PuTTY log ", lgfp);
2413 strftime(buf, 24, "%Y.%m.%d %H:%M:%S", tm);
2415 fputs (" =~=~=~=~=~=~=~=~=~=~=~=\r\n", lgfp);
2419 void logfclose (void) {
2420 if (lgfp) { fclose(lgfp); lgfp = NULL; }