1 /*--------------------------------*-C-*---------------------------------*
3 *----------------------------------------------------------------------*
4 * $Id: command.C,v 1.6 2003-11-25 17:11:33 pcg Exp $
6 * All portions of code are copyright by their respective author/s.
7 * Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk>
9 * Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com>
10 * - extensive modifications
11 * Copyright (c) 1995 Garrett D'Amore <garrett@netcom.com>
13 * Copyright (c) 1995 Steven Hirsch <hirsch@emba.uvm.edu>
14 * - X11 mouse report mode and support for
15 * DEC "private mode" save/restore functions.
16 * Copyright (c) 1995 Jakub Jelinek <jj@gnu.ai.mit.edu>
17 * - key-related changes to handle Shift+function
19 * Copyright (c) 1997 MJ Olesen <olesen@me.queensu.ca>
20 * - extensive modifications
21 * Copyright (c) 1997 Raul Garcia Garcia <rgg@tid.es>
22 * - modification and cleanups for Solaris 2.x
24 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
25 * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
26 * - extensive modifications
27 * Copyright (c) 1998 Alfredo K. Kojima <kojima@windowmaker.org>
28 * Copyright (c) 2001 Marius Gedminas
29 * - Ctrl/Mod4+Tab works like Meta+Tab (options)
30 * Copyright (c) 2003 Rob McMullen <robm@flipturn.org>
32 * This program is free software; you can redistribute it and/or modify
33 * it under the terms of the GNU General Public License as published by
34 * the Free Software Foundation; either version 2 of the License, or
35 * (at your option) any later version.
37 * This program is distributed in the hope that it will be useful,
38 * but WITHOUT ANY WARRANTY; without even the implied warranty of
39 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
40 * GNU General Public License for more details.
42 * You should have received a copy of the GNU General Public License
43 * along with this program; if not, write to the Free Software
44 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
45 *----------------------------------------------------------------------*/
48 #include "../config.h" /* NECESSARY */
49 #include "rxvt.h" /* NECESSARY */
53 /*----------------------------------------------------------------------*/
55 /*{{{ Convert the keypress event into a string */
58 rxvt_lookup_key(pR_ XKeyEvent *ev)
60 int ctrl, meta, shft, len;
64 static int debug_key = 1; /* accessible by a debugger only */
69 unsigned char *kbuf = R->kbuf;
72 * use Num_Lock to toggle Keypad on/off. If Num_Lock is off, allow an
73 * escape sequence to toggle the Keypad.
75 * Always permit `shift' to override the current setting
77 shft = (ev->state & ShiftMask);
78 ctrl = (ev->state & ControlMask);
79 meta = (ev->state & R->ModMetaMask);
80 if (R->numlock_state || (ev->state & R->ModNumLockMask)) {
81 R->numlock_state = (ev->state & R->ModNumLockMask);
82 PrivMode((!R->numlock_state), PrivMode_aplKP);
85 if (R->Input_Context != NULL) {
89 #ifdef X_HAVE_UTF8_STRING
90 len = Xutf8LookupString(R->Input_Context, ev, (char *)kbuf,
91 KBUFSZ, &keysym, &status_return);
93 len = XmbLookupString(R->Input_Context, ev, (char *)kbuf,
94 KBUFSZ, &keysym, &status_return);
96 valid_keysym = ((status_return == XLookupKeySym)
97 || (status_return == XLookupBoth));
99 len = XLookupString(ev, (char *)kbuf, KBUFSZ, &keysym,
104 len = XLookupString(ev, (char *)kbuf, KBUFSZ, &keysym,
107 * map unmapped Latin[2-4]/Katakana/Arabic/Cyrillic/Greek entries -> Latin1
108 * good for installations with correct fonts, but without XLOCALE
111 if ((keysym >= 0x0100) && (keysym < 0x0800)) {
112 kbuf[0] = (keysym & 0xFF);
124 /* for some backwards compatibility */
125 #if defined(HOTKEY_CTRL) || defined(HOTKEY_META)
131 if (keysym == R->ks_bigfont) {
132 rxvt_change_font(aR_ 0, FONT_UP);
134 } else if (keysym == R->ks_smallfont) {
135 rxvt_change_font(aR_ 0, FONT_DN);
141 if (R->TermWin.saveLines) {
142 #ifdef UNSHIFTED_SCROLLKEYS
143 if (!ctrl && !meta) {
149 #ifdef PAGING_CONTEXT_LINES
150 lnsppg = R->TermWin.nrow - PAGING_CONTEXT_LINES;
152 lnsppg = R->TermWin.nrow * 4 / 5;
154 if (keysym == XK_Prior) {
155 rxvt_scr_page(aR_ UP, lnsppg);
157 } else if (keysym == XK_Next) {
158 rxvt_scr_page(aR_ DN, lnsppg);
162 #ifdef SCROLL_ON_UPDOWN_KEYS
164 if (keysym == XK_Up) {
165 rxvt_scr_page(aR_ UP, 1);
167 } else if (keysym == XK_Down) {
168 rxvt_scr_page(aR_ DN, 1);
173 #ifdef SCROLL_ON_HOMEEND_KEYS
175 if (keysym == XK_Home) {
176 rxvt_scr_move_to(aR_ 0, 1);
178 } else if (keysym == XK_End) {
179 rxvt_scr_move_to(aR_ 1, 0);
187 /* Shift + F1 - F10 generates F11 - F20 */
188 if (keysym >= XK_F1 && keysym <= XK_F10) {
189 keysym += (XK_F11 - XK_F1);
190 shft = 0; /* turn off Shift */
191 } else if (!ctrl && !meta && (R->PrivateModes & PrivMode_ShiftKeys)) {
193 /* normal XTerm key bindings */
194 case XK_Insert: /* Shift+Insert = paste mouse selection */
195 rxvt_selection_request(aR_ ev->time, 0, 0);
198 case XK_KP_Add: /* Shift+KP_Add = bigger font */
199 rxvt_change_font(aR_ 0, FONT_UP);
201 case XK_KP_Subtract: /* Shift+KP_Subtract = smaller font */
202 rxvt_change_font(aR_ 0, FONT_DN);
208 if (keysym == XK_Print) {
209 rxvt_scr_printscreen(aR_ ctrl | shft);
214 if (keysym == R->ks_greekmodeswith) {
215 R->greek_mode = !R->greek_mode;
217 rxvt_xterm_seq(aR_ XTerm_title,
218 (greek_getmode() == GREEK_ELOT928
219 ? "[Greek: iso]" : "[Greek: ibm]"), CHAR_ST);
222 rxvt_xterm_seq(aR_ XTerm_title, APL_NAME "-" VERSION, CHAR_ST);
227 if (keysym >= 0xFF00 && keysym <= 0xFFFF) {
228 #ifdef KEYSYM_RESOURCE
229 if (!(shft | ctrl) && R->Keysym_map[keysym & 0xFF] != NULL) {
231 const unsigned char *kbuf0;
232 const unsigned char ch = C0_ESC;
234 kbuf0 = (R->Keysym_map[keysym & 0xFF]);
235 l = (unsigned int)*kbuf0++;
240 if (R->meta_char == C0_ESC)
242 rxvt_tt_write(aR_ &ch, 1);
243 rxvt_tt_write(aR_ kbuf0, l);
250 #ifndef NO_BACKSPACE_KEY
252 if (R->PrivateModes & PrivMode_HaveBackSpace) {
253 kbuf[0] = (!!(R->PrivateModes & PrivMode_BackSpace)
254 ^ !!ctrl) ? '\b' : '\177';
257 STRCPY(kbuf, R->key_backspace);
258 # ifdef MULTICHAR_SET
259 if ((R->Options & Opt_mc_hack) && R->screen.cur.col > 0) {
262 newlen = STRLEN(kbuf);
263 col = R->screen.cur.col - 1;
264 row = R->screen.cur.row + R->TermWin.saveLines;
265 if (IS_MULTI2(R->screen.rend[row][col]))
266 MEMMOVE(kbuf + newlen, kbuf, newlen + 1);
271 #ifndef NO_DELETE_KEY
273 STRCPY(kbuf, R->key_delete);
274 # ifdef MULTICHAR_SET
275 if (R->Options & Opt_mc_hack) {
278 newlen = STRLEN(kbuf);
279 col = R->screen.cur.col;
280 row = R->screen.cur.row + R->TermWin.saveLines;
281 if (IS_MULTI1(R->screen.rend[row][col]))
282 MEMMOVE(kbuf + newlen, kbuf, newlen + 1);
289 STRCPY(kbuf, "\033[Z");
291 #ifdef CTRL_TAB_MAKES_META
295 #ifdef MOD4_TAB_MAKES_META
296 if (ev->state & Mod4Mask)
305 case XK_KP_Up: /* \033Ox or standard */
306 case XK_KP_Down: /* \033Or or standard */
307 case XK_KP_Right: /* \033Ov or standard */
308 case XK_KP_Left: /* \033Ot or standard */
309 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
310 STRCPY(kbuf, "\033OZ");
311 kbuf[2] = ("txvr"[keysym - XK_KP_Left]);
314 /* translate to std. cursor key */
315 keysym = XK_Left + (keysym - XK_KP_Left);
318 case XK_Up: /* "\033[A" */
319 case XK_Down: /* "\033[B" */
320 case XK_Right: /* "\033[C" */
321 case XK_Left: /* "\033[D" */
322 STRCPY(kbuf, "\033[Z");
323 kbuf[2] = ("DACB"[keysym - XK_Left]);
326 kbuf[2] = ("dacb"[keysym - XK_Left]);
329 kbuf[2] = ("dacb"[keysym - XK_Left]);
330 } else if (R->PrivateModes & PrivMode_aplCUR)
334 if (R->Options & Opt_mc_hack) {
337 col = R->screen.cur.col;
338 row = R->screen.cur.row + R->TermWin.saveLines;
340 if (keysym == XK_Right
341 && IS_MULTI1(R->screen.rend[row][col]))
343 else if (keysym == XK_Left) {
345 if (IS_MULTI2(R->screen.rend[row][col - 1]))
347 } else if (R->screen.cur.row > 0) {
348 col = R->screen.tlen[--row];
350 col = R->TermWin.ncol - 1;
354 && IS_MULTI2(R->screen.rend[row][col]))
359 MEMMOVE(kbuf + 3, kbuf, 3 + 1);
364 #ifndef UNSHIFTED_SCROLLKEYS
367 /* allow shift to override */
368 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
369 STRCPY(kbuf, "\033Oy");
375 STRCPY(kbuf, "\033[5~");
379 /* allow shift to override */
380 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
381 STRCPY(kbuf, "\033Os");
387 STRCPY(kbuf, "\033[6~");
391 /* allow shift to override */
392 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
393 STRCPY(kbuf, "\033OM");
402 STRCPY(kbuf, "\033Ou");
406 STRCPY(kbuf, "\033Op");
410 STRCPY(kbuf, "\033On");
413 case XK_KP_F1: /* "\033OP" */
414 case XK_KP_F2: /* "\033OQ" */
415 case XK_KP_F3: /* "\033OR" */
416 case XK_KP_F4: /* "\033OS" */
417 STRCPY(kbuf, "\033OP");
418 kbuf[2] += (keysym - XK_KP_F1);
421 case XK_KP_Multiply: /* "\033Oj" : "*" */
422 case XK_KP_Add: /* "\033Ok" : "+" */
423 case XK_KP_Separator: /* "\033Ol" : "," */
424 case XK_KP_Subtract: /* "\033Om" : "-" */
425 case XK_KP_Decimal: /* "\033On" : "." */
426 case XK_KP_Divide: /* "\033Oo" : "/" */
427 case XK_KP_0: /* "\033Op" : "0" */
428 case XK_KP_1: /* "\033Oq" : "1" */
429 case XK_KP_2: /* "\033Or" : "2" */
430 case XK_KP_3: /* "\033Os" : "3" */
431 case XK_KP_4: /* "\033Ot" : "4" */
432 case XK_KP_5: /* "\033Ou" : "5" */
433 case XK_KP_6: /* "\033Ov" : "6" */
434 case XK_KP_7: /* "\033Ow" : "7" */
435 case XK_KP_8: /* "\033Ox" : "8" */
436 case XK_KP_9: /* "\033Oy" : "9" */
437 /* allow shift to override */
438 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
439 STRCPY(kbuf, "\033Oj");
440 kbuf[2] += (keysym - XK_KP_Multiply);
442 kbuf[0] = ('*' + (keysym - XK_KP_Multiply));
448 STRCPY(kbuf, "\033[1~");
451 STRCPY(kbuf, "\033[2~");
453 #ifdef DXK_Remove /* support for DEC remove like key */
458 STRCPY(kbuf, "\033[3~");
461 STRCPY(kbuf, "\033[4~");
465 /* allow shift to override */
466 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
467 STRCPY(kbuf, "\033Oq");
473 STRCPY(kbuf, KS_END);
477 /* allow shift to override */
478 if ((R->PrivateModes & PrivMode_aplKP) ? !shft : shft) {
479 STRCPY(kbuf, "\033Ow");
485 STRCPY(kbuf, KS_HOME);
488 #define FKEY(n, fkey) \
489 sprintf((char *)kbuf,"\033[%2d~", (int)((n) + (keysym - fkey)))
491 case XK_F1: /* "\033[11~" */
492 case XK_F2: /* "\033[12~" */
493 case XK_F3: /* "\033[13~" */
494 case XK_F4: /* "\033[14~" */
495 case XK_F5: /* "\033[15~" */
498 case XK_F6: /* "\033[17~" */
499 case XK_F7: /* "\033[18~" */
500 case XK_F8: /* "\033[19~" */
501 case XK_F9: /* "\033[20~" */
502 case XK_F10: /* "\033[21~" */
505 case XK_F11: /* "\033[23~" */
506 case XK_F12: /* "\033[24~" */
507 case XK_F13: /* "\033[25~" */
508 case XK_F14: /* "\033[26~" */
511 case XK_F15: /* "\033[28~" */
512 case XK_F16: /* "\033[29~" */
515 case XK_Help: /* "\033[28~" */
518 case XK_Menu: /* "\033[29~" */
521 case XK_F17: /* "\033[31~" */
522 case XK_F18: /* "\033[32~" */
523 case XK_F19: /* "\033[33~" */
524 case XK_F20: /* "\033[34~" */
525 case XK_F21: /* "\033[35~" */
526 case XK_F22: /* "\033[36~" */
527 case XK_F23: /* "\033[37~" */
528 case XK_F24: /* "\033[38~" */
529 case XK_F25: /* "\033[39~" */
530 case XK_F26: /* "\033[40~" */
531 case XK_F27: /* "\033[41~" */
532 case XK_F28: /* "\033[42~" */
533 case XK_F29: /* "\033[43~" */
534 case XK_F30: /* "\033[44~" */
535 case XK_F31: /* "\033[45~" */
536 case XK_F32: /* "\033[46~" */
537 case XK_F33: /* "\033[47~" */
538 case XK_F34: /* "\033[48~" */
539 case XK_F35: /* "\033[49~" */
551 * Pass meta for all function keys, if 'meta' option set
554 if (meta && (R->meta_char == 0x80) && len > 0)
555 kbuf[len - 1] |= 0x80;
557 } else if (ctrl && keysym == XK_minus) {
559 kbuf[0] = '\037'; /* Ctrl-Minus generates ^_ (31) */
563 if (meta && (R->meta_char == 0x80)) {
566 for (ch = kbuf; ch < kbuf + len; ch++)
573 len = greek_xlat(kbuf, len);
580 return; /* not mapped */
582 if (R->Options & Opt_scrollTtyKeypress)
583 if (R->TermWin.view_start) {
584 R->TermWin.view_start = 0;
589 * these modifications only affect the static keybuffer
590 * pass Shift/Control indicators for function keys ending with `~'
594 * Shift+Prior = "ESC[5$"
595 * Ctrl+Prior = "ESC[5^"
596 * Ctrl+Shift+Prior = "ESC[5@"
597 * Meta adds an Escape prefix (with META8_OPTION, if meta == <escape>).
599 if (kbuf[0] == C0_ESC && kbuf[1] == '[' && kbuf[len - 1] == '~')
600 kbuf[len - 1] = (shft ? (ctrl ? '@' : '$') : (ctrl ? '^' : '~'));
605 && (R->meta_char == C0_ESC)
608 const unsigned char ch = C0_ESC;
610 rxvt_tt_write(aR_ &ch, 1);
613 if (debug_key) { /* Display keyboard buffer contents */
617 fprintf(stderr, "key 0x%04X [%d]: `", (unsigned int)keysym, len);
618 for (i = 0, p = kbuf; i < len; i++, p++)
619 fprintf(stderr, (*p >= ' ' && *p < '\177' ? "%c" : "\\%03o"), *p);
620 fprintf(stderr, "'\n");
622 #endif /* DEBUG_CMD */
623 rxvt_tt_write(aR_ kbuf, (unsigned int)len);
628 /*{{{ rxvt_cmd_write(), rxvt_cmd_getc() */
629 /* attempt to `write' count to the input buffer */
632 rxvt_cmd_write(pR_ const unsigned char *str, unsigned int count)
635 unsigned char *cmdbuf_base = R->cmdbuf_base,
636 *cmdbuf_endp = R->cmdbuf_endp,
637 *cmdbuf_ptr = R->cmdbuf_ptr;
639 n = cmdbuf_ptr - cmdbuf_base;
640 s = cmdbuf_base + BUFSIZ - 1 - cmdbuf_endp;
641 if (n > 0 && s < count) {
642 MEMMOVE(cmdbuf_base, cmdbuf_ptr,
643 (unsigned int)(cmdbuf_endp - cmdbuf_ptr));
644 cmdbuf_ptr = cmdbuf_base;
649 rxvt_print_error("data loss: cmd_write too large");
653 *cmdbuf_endp++ = *str++;
654 R->cmdbuf_ptr = cmdbuf_ptr;
655 R->cmdbuf_endp = cmdbuf_endp;
658 #endif /* MENUBAR_MAX */
661 rxvt_term::process_x_events ()
667 XNextEvent (Xdisplay, &xev);
669 #if defined(CURSOR_BLINK)
670 if ((Options & Opt_cursorBlink)
671 && xev.type == KeyPress)
679 blink_ev.start (NOW + BLINK_INTERVAL);
683 #if defined(POINTER_BLANK)
684 if ((Options & Opt_pointerBlank)
685 && (pointerBlankDelay > 0))
687 if (xev.type == MotionNotify
688 || xev.type == ButtonPress
689 || xev.type == ButtonRelease)
693 if (xev.type == KeyPress && hidden_pointer == 0)
699 if (!XFilterEvent (&xev, xev.xany.window))
701 rxvt_process_x_event (this, &xev);
703 while (XPending (Xdisplay));
707 rxvt_term::blink_cb (time_watcher &w)
709 w.at += BLINK_INTERVAL;
710 hidden_cursor = !hidden_cursor;
716 rxvt_term::x_cb (io_watcher &w, short revents)
723 // read the next character, currently handles UTF-8
724 // will probably handle all sorts of other stuff in the future
726 rxvt_term::next_char ()
728 struct mbstate &s = mbstate;
730 while (cmdbuf_ptr < cmdbuf_endp)
732 uint8_t ch = *cmdbuf_ptr;
736 if ((ch & 0xc0) == 0x80)
741 s.reg = (s.reg << 6) | (ch & 0x7f);
743 if (--s.cnt == 0 && s.reg >= 128) /* if !inrange then corruption or Racking */
751 return s.orig; /* the _occasional_ non-utf-8 character may slip through... */
755 if ((ch & 0xc0) == 0xc0)
760 s.orig = ch; /* for broken encodings */
762 if ((ch & 0xe0) == 0xc0) { s.reg &= 0x1f; s.cnt = 1; }
763 if ((ch & 0xf0) == 0xe0) { s.reg &= 0x0f; s.cnt = 2; }
764 if ((ch & 0xf8) == 0xf0) { s.reg &= 0x07; s.cnt = 3; }
765 if ((ch & 0xfc) == 0xf8) { s.reg &= 0x03; s.cnt = 4; }
766 if ((ch & 0xfe) == 0xfc) { s.reg &= 0x01; s.cnt = 5; }
770 cmdbuf_ptr++; /* _occasional_ non-utf8 may slip through... */
779 rxvt_term::pty_fill (size_t count)
781 ssize_t n = cmdbuf_endp - cmdbuf_ptr;
783 memmove (cmdbuf_base, cmdbuf_ptr, n);
784 cmdbuf_ptr = cmdbuf_base;
785 cmdbuf_endp = cmdbuf_ptr + n;
787 n = read (cmd_fd, cmdbuf_endp, count);
794 else if (n < 0 && errno == EAGAIN)
798 exit(EXIT_FAILURE); /* bad order of events? */
802 rxvt_term::pty_cb (io_watcher &w, short revents)
804 while (pty_fill (BUFSIZ - (cmdbuf_endp - cmdbuf_ptr)))
806 /* once we know the shell is running, send the screen size. Again! */
807 //ch = rxvt_cmd_getc(aR); /* wait for something */
808 //rxvt_tt_winsize(cmd_fd, TermWin.ncol, TermWin.nrow, cmd_pid);
810 uint32_t ch = NOCHAR;
817 if (ch == NOCHAR) // TODO: improve
820 if (ch >= ' ' || ch == '\t' || ch == '\n' || ch == '\r')
822 /* Read a text string from the input buffer */
823 uint32_t buf[BUFSIZ];
824 bool refreshnow = false;
834 if (ch == NOCHAR || (ch < ' ' && ch != '\t' && ch != '\n' && ch != '\r'))
845 if (!(Options & Opt_jumpScroll)
846 || (refresh_count >= (refresh_limit * (TermWin.nrow - 1))))
854 if (str >= buf + BUFSIZ)
862 rxvt_scr_add_lines (this, buf, nlines, str - buf);
865 * If there have been a lot of new lines, then update the screen
866 * What the heck I'll cheat and only refresh less than every page-full.
867 * the number of pages between refreshes is refresh_limit, which
868 * is incremented here because we must be doing flat-out scrolling.
870 * refreshing should be correct for small scrolls, because of the
875 if ((Options & Opt_jumpScroll) && refresh_limit < REFRESH_PERIOD)
878 rxvt_scr_refresh (this, refresh_type);
887 rxvt_process_nonprinting (this, ch);
889 case C0_ESC: /* escape char */
890 rxvt_process_escape_seq (this);
892 /*case 0x9b: */ /* CSI */
893 /* rxvt_process_csi_seq (this); */
908 if (want_full_refresh)
910 want_full_refresh = 0;
911 rxvt_scr_clear (this);
912 rxvt_scr_touch (this, False);
919 rxvt_scr_refresh (this, refresh_type);
920 rxvt_scrollbar_show (this, 1);
922 rxvt_IMSendSpot (this);
929 /* rxvt_cmd_getc() - Return next input character */
931 * Return the next input character after first passing any keyboard input
940 uint32_t c = R->next_char ();
944 // incomplete sequences should occur rarely, still, a better solution
945 // would be preferred. either setjmp/longjmp or better design.
946 fcntl (R->cmd_fd, F_SETFL, 0);
948 fcntl (R->cmd_fd, F_SETFL, O_NONBLOCK);
952 #define TIMEOUT_USEC 5000
954 int quick_timeout, select_res;
955 int want_motion_time, want_keypress_time;
956 struct timeval value;
957 #if defined(POINTER_BLANK) || defined(CURSOR_BLINK)
962 /* loop until we can return something */
964 if (R->v_bufstr < R->v_bufptr) /* output any pending chars */
965 rxvt_tt_write(aR_ NULL, 0);
967 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
968 if (R->mouse_slip_wheel_speed) {
970 if (!R->mouse_slip_wheel_delay--
971 && rxvt_scr_page(aR_ R->mouse_slip_wheel_speed > 0 ? UP : DN,
972 abs(R->mouse_slip_wheel_speed))) {
973 R->mouse_slip_wheel_delay = SCROLLBAR_CONTINUOUS_DELAY;
974 R->refresh_type |= SMOOTH_REFRESH;
978 #endif /* MOUSE_WHEEL && MOUSE_SLIP_WHEELING */
979 #ifdef SELECTION_SCROLLING
980 if (R->pending_scroll_selection) {
982 if (!R->scroll_selection_delay--
983 && rxvt_scr_page(aR_ R->scroll_selection_dir,
984 R->scroll_selection_lines)) {
985 rxvt_selection_extend(aR_ R->selection_save_x,
986 R->selection_save_y, R->selection_save_state);
987 R->scroll_selection_delay = SCROLLBAR_CONTINUOUS_DELAY;
988 R->refresh_type |= SMOOTH_REFRESH;
993 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
994 if (scrollbar_isUp() || scrollbar_isDn()) {
996 if (!R->scroll_arrow_delay--
997 && rxvt_scr_page(aR_ scrollbar_isUp() ? UP : DN, 1)) {
998 R->scroll_arrow_delay = SCROLLBAR_CONTINUOUS_DELAY;
999 R->refresh_type |= SMOOTH_REFRESH;
1000 R->want_refresh = 1;
1003 #endif /* NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING */
1006 quick_timeout |= R->want_full_refresh;
1011 #ifdef POINTER_BLANK
1013 rxvt_term::pointer_unblank ()
1015 if (!(Options & Opt_pointerBlank))
1018 XDefineCursor (Xdisplay, TermWin.vt, TermWin_cursor);
1019 rxvt_recolour_cursor (this);
1022 pointer_ev.start (NOW + pointerBlankDelay);
1026 rxvt_term::pointer_blank ()
1030 if (!(Options & Opt_pointerBlank))
1033 XDefineCursor (Xdisplay, TermWin.vt, blank_cursor);
1040 rxvt_term::pointer_cb (time_watcher &w)
1048 rxvt_mouse_report(pR_ const XButtonEvent *ev)
1050 int button_number, key_state = 0;
1055 rxvt_pixel_position(aR_ &x, &y);
1057 if (R->MEvent.button == AnyButton) {
1060 button_number = R->MEvent.button - Button1;
1061 /* add 0x3D for wheel events, like xterm does */
1062 if (button_number >= 3)
1063 button_number += (64 - 3);
1066 if (R->PrivateModes & PrivMode_MouseX10) {
1068 * do not report ButtonRelease
1069 * no state info allowed
1072 if (button_number == 3)
1075 /* XTerm mouse reporting needs these values:
1079 * plus will add in our own Double-Click reporting
1082 key_state = ((R->MEvent.state & ShiftMask) ? 4 : 0)
1083 + ((R->MEvent.state & R->ModMetaMask) ? 8 : 0)
1084 + ((R->MEvent.state & ControlMask) ? 16 : 0);
1085 #ifdef MOUSE_REPORT_DOUBLECLICK
1086 key_state += ((R->MEvent.clicks > 1) ? 32 : 0);
1090 #ifdef DEBUG_MOUSEREPORT
1091 fprintf(stderr, "Mouse [");
1100 fprintf(stderr, "]: <%d>, %d/%d\n",
1105 rxvt_tt_printf(aR_ "\033[M%c%c%c",
1106 (32 + button_number + key_state),
1115 rxvt_W11_process_x_event(XEvent *ev)
1117 rxvt_t *r = rxvt_get_r();
1119 rxvt_process_x_event(aR_ ev);
1123 /*{{{ process an X event */
1126 rxvt_process_x_event(pR_ XEvent *ev)
1128 int i, want_timeout;
1129 Window unused_root, unused_child;
1130 int unused_root_x, unused_root_y;
1131 unsigned int unused_mask;
1135 const char *const eventnames[] =
1136 { /* mason - this matches my system */
1177 * check if we need to get the time for any timeouts
1180 for (i = NUM_TIMEOUTS; i--; )
1181 if (R->timeout[i].tv_sec) {
1189 (void)gettimeofday(&tp, NULL);
1192 ltt = localtime(&(tp.tv_sec));
1193 D_X((stderr, "Event: %-16s %-7s %08lx (%4d-%02d-%02d %02d:%02d:%02d.%.6ld) %s %lu", eventnames[ev->type], (ev->xany.window == R->TermWin.parent[0] ? "parent" : (ev->xany.window == R->TermWin.vt ? "vt" : (ev->xany.window == R->scrollBar.win ? "scroll" : (ev->xany.window == R->menuBar.win ? "menubar" : "UNKNOWN")))), (ev->xany.window == R->TermWin.parent[0] ? R->TermWin.parent[0] : (ev->xany.window == R->TermWin.vt ? R->TermWin.vt : (ev->xany.window == R->scrollBar.win ? R->scrollBar.win : (ev->xany.window == R->menuBar.win ? R->menuBar.win : 0)))), ltt->tm_year + 1900, ltt->tm_mon + 1, ltt->tm_mday, ltt->tm_hour, ltt->tm_min, ltt->tm_sec, tp.tv_usec, ev->xany.send_event ? "S" : " ", ev->xany.serial));
1196 /* X event timeouts */
1198 for (i = NUM_TIMEOUTS; i--; ) {
1199 if (R->timeout[i].tv_sec == 0)
1201 if ((tp.tv_sec < R->timeout[i].tv_sec)
1202 || (tp.tv_sec == R->timeout[i].tv_sec
1203 && tp.tv_usec < R->timeout[i].tv_usec))
1205 R->timeout[i].tv_sec = 0;
1208 rxvt_print_error("data loss: timeout on INCR selection paste");
1209 R->selection_wait = Sel_none;
1218 rxvt_lookup_key(aR_ (XKeyEvent *)ev);
1221 #if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING)
1224 if (!(ev->xkey.state & ControlMask))
1225 R->mouse_slip_wheel_speed = 0;
1229 ks = XKeycodeToKeysym(R->Xdisplay, ev->xkey.keycode, 0);
1230 if (ks == XK_Control_L || ks == XK_Control_R)
1231 R->mouse_slip_wheel_speed = 0;
1238 rxvt_button_press(aR_ (XButtonEvent *)ev);
1242 rxvt_button_release(aR_ (XButtonEvent *)ev);
1246 if (ev->xclient.format == 32
1247 && (Atom)ev->xclient.data.l[0] == R->xa[XA_WMDELETEWINDOW])
1250 /* OffiX Dnd (drag 'n' drop) protocol */
1251 if (ev->xclient.message_type == R->xa[XA_DNDPROTOCOL]
1252 && (ev->xclient.data.l[0] == DndFile
1253 || ev->xclient.data.l[0] == DndDir
1254 || ev->xclient.data.l[0] == DndLink)) {
1258 unsigned char *data;
1259 unsigned long Size, RemainingBytes;
1261 XGetWindowProperty(R->Xdisplay, Xroot,
1262 R->xa[XA_DNDSELECTION],
1264 False, AnyPropertyType,
1265 &ActualType, &ActualFormat,
1266 &Size, &RemainingBytes,
1268 XChangeProperty(R->Xdisplay, Xroot,
1269 XA_CUT_BUFFER0, XA_STRING,
1271 data, STRLEN(data));
1272 rxvt_selection_paste(aR_ Xroot, XA_CUT_BUFFER0, True);
1273 XSetInputFocus(R->Xdisplay, Xroot, RevertToNone, CurrentTime);
1275 #endif /* OFFIX_DND */
1279 XRefreshKeyboardMapping(&(ev->xmapping));
1283 * XXX: this is not the _current_ arrangement
1284 * Here's my conclusion:
1285 * If the window is completely unobscured, use bitblt's
1286 * to scroll. Even then, they're only used when doing partial
1287 * screen scrolling. When partially obscured, we have to fill
1288 * in the GraphicsExpose parts, which means that after each refresh,
1289 * we need to wait for the graphics expose or Noexpose events,
1290 * which ought to make things real slow!
1292 case VisibilityNotify:
1293 switch (ev->xvisibility.state) {
1294 case VisibilityUnobscured:
1295 R->refresh_type = FAST_REFRESH;
1297 case VisibilityPartiallyObscured:
1298 R->refresh_type = SLOW_REFRESH;
1301 R->refresh_type = NO_REFRESH;
1307 if (!R->TermWin.focus) {
1308 R->TermWin.focus = 1;
1309 R->want_refresh = 1;
1311 if (R->Input_Context != NULL)
1312 XSetICFocus(R->Input_Context);
1315 if (R->Options & Opt_cursorBlink)
1316 R->blink_ev.start (NOW + BLINK_INTERVAL);
1322 if (R->TermWin.focus) {
1323 R->TermWin.focus = 0;
1324 R->want_refresh = 1;
1326 if (R->Input_Context != NULL)
1327 XUnsetICFocus(R->Input_Context);
1330 if (R->Options & Opt_cursorBlink)
1331 R->blink_ev.stop ();
1332 R->hidden_cursor = 0;
1337 case ConfigureNotify:
1338 if (ev->xconfigure.window == R->TermWin.parent[0]) {
1341 do { /* Wrap lots of configures into one */
1342 width = ev->xconfigure.width;
1343 height = ev->xconfigure.height;
1344 D_SIZE((stderr, "Size: ConfigureNotify: %4d x %4d", width, height));
1345 } while (XCheckTypedWindowEvent(R->Xdisplay, ev->xconfigure.window,
1346 ConfigureNotify, ev));
1347 if (R->szHint.width != width || R->szHint.height != height) {
1348 D_SIZE((stderr, "Size: Resizing from: %4d x %4d", R->szHint.width, R->szHint.height));
1349 rxvt_resize_all_windows(aR_ (unsigned int)width,
1350 (unsigned int)height, 1);
1354 D_SIZE((stderr, "Size: Not resizing"));
1357 #ifdef TRANSPARENT /* XXX: maybe not needed - leave in for now */
1358 if (R->Options & Opt_transparent) {
1359 rxvt_check_our_parents(aR);
1360 if (R->am_transparent)
1361 R->want_full_refresh = 1;
1367 case SelectionClear:
1368 rxvt_selection_clear(aR);
1371 case SelectionNotify:
1372 if (R->selection_wait == Sel_normal)
1373 rxvt_selection_paste(aR_ ev->xselection.requestor,
1374 ev->xselection.property, True);
1377 case SelectionRequest:
1378 rxvt_selection_send(aR_ &(ev->xselectionrequest));
1382 R->TermWin.mapped = 0;
1386 R->TermWin.mapped = 1;
1389 case PropertyNotify:
1390 if (ev->xproperty.atom == R->xa[XA_VT_SELECTION]) {
1391 if (ev->xproperty.state == PropertyNewValue)
1392 rxvt_selection_property(aR_ ev->xproperty.window,
1393 ev->xproperty.atom);
1398 * if user used some Esetroot compatible prog to set the root bg,
1399 * use the property to determine the pixmap. We use it later on.
1401 if (R->xa[XA_XROOTPMAPID] == 0)
1402 R->xa[XA_XROOTPMAPID] = XInternAtom(R->Xdisplay,
1403 "_XROOTPMAP_ID", False);
1404 if (ev->xproperty.atom != R->xa[XA_XROOTPMAPID])
1407 case ReparentNotify:
1408 if ((R->Options & Opt_transparent) && rxvt_check_our_parents(aR)) {
1409 if (R->am_transparent)
1410 R->want_full_refresh = 1;
1412 #endif /* TRANSPARENT */
1415 case GraphicsExpose:
1417 if (ev->xany.window == R->TermWin.vt) {
1418 #ifdef NO_SLOW_LINK_SUPPORT
1419 rxvt_scr_expose(aR_ ev->xexpose.x, ev->xexpose.y,
1420 ev->xexpose.width, ev->xexpose.height, False);
1422 // don't understand this, so commented it out
1423 rxvt_scr_expose(aR_ ev->xexpose.x, ev->xexpose.y,
1424 ev->xexpose.width, ev->xexpose.height, False);
1425 //rxvt_scr_expose(aR_ ev->xexpose.x, 0,
1426 // ev->xexpose.width, R->TermWin.height, False);
1428 R->want_refresh = 1;
1430 XEvent unused_xevent;
1432 while (XCheckTypedWindowEvent(R->Xdisplay, ev->xany.window,
1435 while (XCheckTypedWindowEvent(R->Xdisplay, ev->xany.window,
1438 if (isScrollbarWindow(ev->xany.window)) {
1439 scrollbar_setIdle();
1440 rxvt_scrollbar_show(aR_ 0);
1443 if (menubar_visible(aR) && isMenuBarWindow(ev->xany.window))
1444 rxvt_menubar_expose(aR);
1446 #ifdef RXVT_GRAPHICS
1447 rxvt_Gr_expose(aR_ ev->xany.window);
1453 #ifdef POINTER_BLANK
1454 if (R->hidden_pointer)
1455 R->pointer_unblank ();
1458 if (isMenuBarWindow(ev->xany.window)) {
1459 rxvt_menubar_control(aR_ &(ev->xbutton));
1463 if ((R->PrivateModes & PrivMode_mouse_report) && !(R->bypass_keystate))
1466 if (ev->xany.window == R->TermWin.vt) {
1467 if ((ev->xbutton.state & (Button1Mask | Button3Mask))) {
1468 while (XCheckTypedWindowEvent(R->Xdisplay, R->TermWin.vt,
1469 MotionNotify, ev)) ;
1470 XQueryPointer(R->Xdisplay, R->TermWin.vt,
1471 &unused_root, &unused_child,
1472 &unused_root_x, &unused_root_y,
1473 &(ev->xbutton.x), &(ev->xbutton.y),
1475 #ifdef MOUSE_THRESHOLD
1476 /* deal with a `jumpy' mouse */
1477 if ((ev->xmotion.time - R->MEvent.time) > MOUSE_THRESHOLD) {
1479 rxvt_selection_extend(aR_ (ev->xbutton.x), (ev->xbutton.y),
1480 (ev->xbutton.state & Button3Mask) ? 2 : 0);
1481 #ifdef SELECTION_SCROLLING
1482 if (ev->xbutton.y<R->TermWin.int_bwidth ||
1483 Pixel2Row(ev->xbutton.y)>(R->TermWin.nrow-1)) {
1486 R->pending_scroll_selection=1;
1488 /* don't clobber the current delay if we are
1489 * already in the middle of scrolling.
1491 if (R->scroll_selection_delay<=0)
1492 R->scroll_selection_delay=SCROLLBAR_CONTINUOUS_DELAY;
1494 /* save the event params so we can highlight
1495 * the selection in the pending-scroll loop
1497 R->selection_save_x=ev->xbutton.x;
1498 R->selection_save_y=ev->xbutton.y;
1499 R->selection_save_state=
1500 (ev->xbutton.state & Button3Mask) ? 2 : 0;
1502 /* calc number of lines to scroll */
1503 if (ev->xbutton.y<R->TermWin.int_bwidth) {
1504 R->scroll_selection_dir = UP;
1505 dist = R->TermWin.int_bwidth - ev->xbutton.y;
1508 R->scroll_selection_dir = DN;
1509 dist = ev->xbutton.y -
1510 (R->TermWin.int_bwidth + R->TermWin.height);
1512 R->scroll_selection_lines=(Pixel2Height(dist)/
1513 SELECTION_SCROLL_LINE_SPEEDUP)+1;
1514 MIN_IT(R->scroll_selection_lines,
1515 SELECTION_SCROLL_MAX_LINES);
1518 /* we are within the text window, so we
1519 * shouldn't be scrolling
1521 R->pending_scroll_selection = 0;
1524 #ifdef MOUSE_THRESHOLD
1528 } else if (isScrollbarWindow(ev->xany.window) && scrollbar_isMotion()) {
1529 while (XCheckTypedWindowEvent(R->Xdisplay, R->scrollBar.win,
1530 MotionNotify, ev)) ;
1531 XQueryPointer(R->Xdisplay, R->scrollBar.win,
1532 &unused_root, &unused_child,
1533 &unused_root_x, &unused_root_y,
1534 &(ev->xbutton.x), &(ev->xbutton.y),
1536 rxvt_scr_move_to(aR_ scrollbar_position(ev->xbutton.y) - R->csrO,
1538 rxvt_scr_refresh(aR_ R->refresh_type);
1539 R->refresh_limit = 0;
1540 rxvt_scrollbar_show(aR_ 1);
1548 rxvt_button_press(pR_ XButtonEvent *ev)
1550 int reportmode = 0, clickintime;
1552 R->bypass_keystate = ev->state & (R->ModMetaMask | ShiftMask);
1553 if (!R->bypass_keystate)
1554 reportmode = !!(R->PrivateModes & PrivMode_mouse_report);
1556 * VT window processing of button press
1558 if (ev->window == R->TermWin.vt)
1561 if (ev->subwindow != None)
1562 rxvt_Gr_ButtonPress(ev->x, ev->y);
1566 clickintime = ev->time - R->MEvent.time < MULTICLICK_TIME;
1569 /* mouse report from vt window */
1570 /* save the xbutton state (for ButtonRelease) */
1571 R->MEvent.state = ev->state;
1572 #ifdef MOUSE_REPORT_DOUBLECLICK
1573 if (ev->button == R->MEvent.button && clickintime)
1575 /* same button, within alloted time */
1577 if (R->MEvent.clicks > 1)
1579 /* only report double clicks */
1580 R->MEvent.clicks = 2;
1581 rxvt_mouse_report(aR_ ev);
1583 /* don't report the release */
1584 R->MEvent.clicks = 0;
1585 R->MEvent.button = AnyButton;
1590 /* different button, or time expired */
1591 R->MEvent.clicks = 1;
1592 R->MEvent.button = ev->button;
1593 rxvt_mouse_report(aR_ ev);
1596 R->MEvent.button = ev->button;
1597 rxvt_mouse_report(aR_ ev);
1598 #endif /* MOUSE_REPORT_DOUBLECLICK */
1602 if (ev->button != R->MEvent.button)
1603 R->MEvent.clicks = 0;
1607 if (R->MEvent.button == Button1 && clickintime)
1610 R->MEvent.clicks = 1;
1611 rxvt_selection_click(aR_ R->MEvent.clicks, ev->x, ev->y);
1612 R->MEvent.button = Button1;
1616 if (R->MEvent.button == Button3 && clickintime)
1617 rxvt_selection_rotate(aR_ ev->x, ev->y);
1619 rxvt_selection_extend(aR_ ev->x, ev->y, 1);
1620 R->MEvent.button = Button3;
1624 R->MEvent.time = ev->time;
1630 * Scrollbar window processing of button press
1632 if (isScrollbarWindow(ev->window))
1634 scrollbar_setIdle();
1636 * Rxvt-style scrollbar:
1637 * move up if mouse is above slider
1638 * move dn if mouse is below slider
1640 * XTerm-style scrollbar:
1641 * Move display proportional to pointer location
1642 * pointer near top -> scroll one line
1643 * pointer near bot -> scroll full page
1645 #ifndef NO_SCROLLBAR_REPORT
1648 * Mouse report disabled scrollbar:
1649 * arrow buttons - send up/down
1650 * click on scrollbar - send pageup/down
1652 if ((R->scrollBar.style == R_SB_NEXT
1653 && scrollbarnext_upButton(ev->y))
1654 || (R->scrollBar.style == R_SB_RXVT
1655 && scrollbarrxvt_upButton(ev->y)))
1656 rxvt_tt_printf(aR_ "\033[A");
1657 else if ((R->scrollBar.style == R_SB_NEXT
1658 && scrollbarnext_dnButton(ev->y))
1659 || (R->scrollBar.style == R_SB_RXVT
1660 && scrollbarrxvt_dnButton(ev->y)))
1661 rxvt_tt_printf(aR_ "\033[B");
1663 switch (ev->button) {
1665 rxvt_tt_printf(aR_ "\014");
1668 rxvt_tt_printf(aR_ "\033[6~");
1671 rxvt_tt_printf(aR_ "\033[5~");
1676 #endif /* NO_SCROLLBAR_REPORT */
1680 if (R->scrollBar.style == R_SB_NEXT) {
1681 if (scrollbarnext_upButton(ev->y))
1682 upordown = -1; /* up */
1683 else if (scrollbarnext_dnButton(ev->y))
1684 upordown = 1; /* down */
1685 } else if (R->scrollBar.style == R_SB_RXVT) {
1686 if (scrollbarrxvt_upButton(ev->y))
1687 upordown = -1; /* up */
1688 else if (scrollbarrxvt_dnButton(ev->y))
1689 upordown = 1; /* down */
1692 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
1693 R->scroll_arrow_delay = SCROLLBAR_INITIAL_DELAY;
1695 if (rxvt_scr_page(aR_ upordown < 0 ? UP : DN, 1)) {
1702 switch (ev->button) {
1704 switch (R->scrollbar_align) {
1705 case R_SB_ALIGN_TOP:
1708 case R_SB_ALIGN_CENTRE:
1709 R->csrO = (R->scrollBar.bot - R->scrollBar.top) / 2;
1711 case R_SB_ALIGN_BOTTOM:
1712 R->csrO = R->scrollBar.bot - R->scrollBar.top;
1715 if (R->scrollBar.style == R_SB_XTERM
1716 || scrollbar_above_slider(ev->y)
1717 || scrollbar_below_slider(ev->y))
1718 rxvt_scr_move_to(aR_
1719 scrollbar_position(ev->y) - R->csrO,
1721 scrollbar_setMotion();
1725 if (R->scrollbar_align == R_SB_ALIGN_CENTRE)
1726 R->csrO = ev->y - R->scrollBar.top;
1730 if (R->scrollBar.style != R_SB_XTERM) {
1731 if (scrollbar_above_slider(ev->y))
1732 # ifdef RXVT_SCROLL_FULL
1733 rxvt_scr_page(aR_ UP, R->TermWin.nrow - 1);
1735 rxvt_scr_page(aR_ UP, R->TermWin.nrow / 4);
1737 else if (scrollbar_below_slider(ev->y))
1738 # ifdef RXVT_SCROLL_FULL
1739 rxvt_scr_page(aR_ DN, R->TermWin.nrow - 1);
1741 rxvt_scr_page(aR_ DN, R->TermWin.nrow / 4);
1744 scrollbar_setMotion();
1746 rxvt_scr_page(aR_ (ev->button == Button1 ? DN : UP),
1748 * scrollbar_position(ev->y)
1749 / scrollbar_size()));
1758 * Menubar window processing of button press
1760 if (isMenuBarWindow(ev->window))
1761 rxvt_menubar_control(aR_ ev);
1767 rxvt_button_release(pR_ XButtonEvent *ev)
1771 R->csrO = 0; /* reset csr Offset */
1772 if (!R->bypass_keystate)
1773 reportmode = !!(R->PrivateModes & PrivMode_mouse_report);
1775 if (scrollbar_isUpDn()) {
1776 scrollbar_setIdle();
1777 rxvt_scrollbar_show(aR_ 0);
1778 #ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
1779 R->refresh_type &= ~SMOOTH_REFRESH;
1782 #ifdef SELECTION_SCROLLING
1783 R->pending_scroll_selection=0;
1785 if (ev->window == R->TermWin.vt)
1787 #ifdef RXVT_GRAPHICS
1788 if (ev->subwindow != None)
1789 rxvt_Gr_ButtonRelease(ev->x, ev->y);
1795 /* mouse report from vt window */
1796 /* don't report release of wheel "buttons" */
1797 if (ev->button >= 4)
1799 #ifdef MOUSE_REPORT_DOUBLECLICK
1800 /* only report the release of 'slow' single clicks */
1801 if (R->MEvent.button != AnyButton
1802 && (ev->button != R->MEvent.button
1803 || (ev->time - R->MEvent.time
1804 > MULTICLICK_TIME / 2)))
1806 R->MEvent.clicks = 0;
1807 R->MEvent.button = AnyButton;
1808 rxvt_mouse_report(aR_ ev);
1810 #else /* MOUSE_REPORT_DOUBLECLICK */
1811 R->MEvent.button = AnyButton;
1812 rxvt_mouse_report(aR_ ev);
1813 #endif /* MOUSE_REPORT_DOUBLECLICK */
1817 * dumb hack to compensate for the failure of click-and-drag
1818 * when overriding mouse reporting
1820 if (R->PrivateModes & PrivMode_mouse_report
1821 && R->bypass_keystate
1822 && ev->button == Button1 && R->MEvent.clicks <= 1)
1823 rxvt_selection_extend(aR_ ev->x, ev->y, 0);
1825 switch (ev->button) {
1828 rxvt_selection_make(aR_ ev->time);
1831 rxvt_selection_request(aR_ ev->time, ev->x, ev->y);
1839 v = (ev->button == Button4) ? UP : DN;
1840 if (ev->state & ShiftMask)
1842 else if ((R->Options & Opt_mouseWheelScrollPage))
1843 i = R->TermWin.nrow - 1;
1846 # ifdef MOUSE_SLIP_WHEELING
1847 if (ev->state & ControlMask)
1849 R->mouse_slip_wheel_speed += (v ? -1 : 1);
1850 R->mouse_slip_wheel_delay = SCROLLBAR_CONTINUOUS_DELAY;
1853 # ifdef JUMP_MOUSE_WHEEL
1854 rxvt_scr_page(aR_ v, i);
1855 rxvt_scr_refresh(aR_ SMOOTH_REFRESH);
1856 rxvt_scrollbar_show(aR_ 1);
1860 rxvt_scr_page(aR_ v, 1);
1861 rxvt_scr_refresh(aR_ SMOOTH_REFRESH);
1862 rxvt_scrollbar_show(aR_ 1);
1872 else if (isMenuBarWindow(ev->window))
1873 rxvt_menubar_control(aR_ ev);
1880 * Check our parents are still who we think they are.
1881 * Do transparency updates if required
1885 rxvt_check_our_parents(pR)
1887 int i, pchanged, aformat, have_pixmap, rootdepth;
1888 unsigned long nitems, bytes_after;
1890 unsigned char *prop = NULL;
1891 Window root, oldp, *list;
1892 Pixmap rootpixmap = None;
1893 XWindowAttributes wattr, wrootattr;
1897 if (!(R->Options & Opt_transparent))
1898 return pchanged; /* Don't try any more */
1900 XGetWindowAttributes(R->Xdisplay, Xroot, &wrootattr);
1901 rootdepth = wrootattr.depth;
1903 XGetWindowAttributes(R->Xdisplay, R->TermWin.parent[0], &wattr);
1904 if (rootdepth != wattr.depth) {
1905 if (R->am_transparent) {
1907 XSetWindowBackground(R->Xdisplay, R->TermWin.vt,
1908 R->PixColors[Color_bg]);
1909 R->am_transparent = R->am_pixmap_trans = 0;
1911 return pchanged; /* Don't try any more */
1914 /* Get all X ops out of the queue so that our information is up-to-date. */
1915 XSync(R->Xdisplay, False);
1918 * Make the frame window set by the window manager have
1919 * the root background. Some window managers put multiple nested frame
1920 * windows for each client, so we have to take care about that.
1922 i = (R->xa[XA_XROOTPMAPID] != 0
1923 && (XGetWindowProperty(R->Xdisplay, Xroot, R->xa[XA_XROOTPMAPID],
1924 0L, 1L, False, XA_PIXMAP, &atype, &aformat,
1925 &nitems, &bytes_after, &prop) == Success));
1926 if (!i || prop == NULL)
1930 rootpixmap = *((Pixmap *)prop);
1935 * Copy Xroot pixmap transparency
1938 unsigned int nw, nh;
1944 XTranslateCoordinates(R->Xdisplay, R->TermWin.parent[0], Xroot,
1945 0, 0, &sx, &sy, &cr);
1946 nw = (unsigned int)R->szHint.width;
1947 nh = (unsigned int)R->szHint.height;
1959 MIN_IT(nw, (unsigned int)(wrootattr.width - sx));
1960 MIN_IT(nh, (unsigned int)(wrootattr.height - sy));
1961 R->allowedxerror = -1;
1962 image = XGetImage(R->Xdisplay, rootpixmap, sx, sy, nw, nh, AllPlanes,
1964 /* XXX: handle BadMatch - usually because we're outside the pixmap */
1965 /* XXX: may need a delay here? */
1966 R->allowedxerror = 0;
1967 if (image == NULL) {
1968 if (R->am_transparent && R->am_pixmap_trans) {
1970 if (R->TermWin.pixmap != None) {
1971 XFreePixmap(R->Xdisplay, R->TermWin.pixmap);
1972 R->TermWin.pixmap = None;
1975 R->am_pixmap_trans = 0;
1977 if (R->TermWin.pixmap != None)
1978 XFreePixmap(R->Xdisplay, R->TermWin.pixmap);
1979 R->TermWin.pixmap = XCreatePixmap(R->Xdisplay, R->TermWin.vt,
1980 (unsigned int)R->szHint.width,
1981 (unsigned int)R->szHint.height,
1982 (unsigned int)image->depth);
1983 gc = XCreateGC(R->Xdisplay, R->TermWin.vt, 0UL, &gcvalue);
1984 XPutImage(R->Xdisplay, R->TermWin.pixmap, gc, image, 0, 0,
1985 nx, ny, (unsigned int)image->width,
1986 (unsigned int)image->height);
1987 XFreeGC(R->Xdisplay, gc);
1988 XDestroyImage(image);
1989 XSetWindowBackgroundPixmap(R->Xdisplay, R->TermWin.vt,
1991 if (!R->am_transparent || !R->am_pixmap_trans)
1993 R->am_transparent = R->am_pixmap_trans = 1;
1996 if (!R->am_pixmap_trans) {
1999 * InheritPixmap transparency
2001 D_X((stderr, "InheritPixmap Seeking to %08lx", Xroot));
2002 for (i = 1; i < (int)(sizeof(R->TermWin.parent) / sizeof(Window));
2004 oldp = R->TermWin.parent[i];
2005 XQueryTree(R->Xdisplay, R->TermWin.parent[i - 1], &root,
2006 &R->TermWin.parent[i], &list, &n);
2008 D_X((stderr, "InheritPixmap Parent[%d] = %08lx", i, R->TermWin.parent[i]));
2009 if (R->TermWin.parent[i] == Xroot) {
2014 if (oldp != R->TermWin.parent[i])
2019 for (; n < (unsigned int)i; n++) {
2020 XGetWindowAttributes(R->Xdisplay, R->TermWin.parent[n], &wattr);
2021 D_X((stderr, "InheritPixmap Checking Parent[%d]: %s", n, (wattr.depth == rootdepth && wattr.class != InputOnly) ? "OK" : "FAIL"));
2022 if (wattr.depth != rootdepth || wattr.class == InputOnly) {
2023 n = (int)(sizeof(R->TermWin.parent) / sizeof(Window)) + 1;
2028 if (n > (int)(sizeof(R->TermWin.parent)
2029 / sizeof(R->TermWin.parent[0]))) {
2030 D_X((stderr, "InheritPixmap Turning off"));
2031 XSetWindowBackground(R->Xdisplay, R->TermWin.parent[0],
2032 R->PixColors[Color_fg]);
2033 XSetWindowBackground(R->Xdisplay, R->TermWin.vt,
2034 R->PixColors[Color_bg]);
2035 R->am_transparent = 0;
2036 /* XXX: also turn off Opt_transparent? */
2038 /* wait (an arbitrary period) for the WM to do its thing
2039 * needed for fvwm2.2.2 (and before?) */
2040 # ifdef HAVE_NANOSLEEP
2041 struct timespec rqt;
2045 nanosleep(&rqt, NULL);
2049 D_X((stderr, "InheritPixmap Turning on (%d parents)", i - 1));
2050 for (n = 0; n < (unsigned int)i; n++)
2051 XSetWindowBackgroundPixmap(R->Xdisplay, R->TermWin.parent[n],
2053 XSetWindowBackgroundPixmap(R->Xdisplay, R->TermWin.vt,
2055 R->am_transparent = 1;
2057 for (; i < (int)(sizeof(R->TermWin.parent) / sizeof(Window)); i++)
2058 R->TermWin.parent[i] = None;
2067 /*----------------------------------------------------------------------*/
2071 rxvt_popen_printer(pR)
2073 FILE *stream = popen(R->rs[Rs_print_pipe], "w");
2076 rxvt_print_error("can't open printer pipe");
2082 rxvt_pclose_printer(FILE *stream)
2085 /* pclose() reported not to work on SunOS 4.1.3 */
2086 # if defined (__sun__) /* TODO: RESOLVE THIS */
2087 /* pclose works provided SIGCHLD handler uses waitpid */
2088 return pclose(stream); /* return fclose (stream); */
2090 return pclose(stream);
2095 * simulate attached vt100 printer
2099 rxvt_process_print_pipe(pR)
2104 if ((fd = rxvt_popen_printer(aR)) == NULL)
2108 * Send all input to the printer until either ESC[4i or ESC[?4i
2111 for (done = 0; !done;) {
2112 unsigned char buf[8];
2114 unsigned int i, len;
2116 if ((ch = rxvt_cmd_getc(aR)) != C0_ESC) {
2117 if (putc(ch, fd) == EOF)
2118 break; /* done = 1 */
2123 if ((buf[len++] = rxvt_cmd_getc(aR)) == '[') {
2124 if ((ch = rxvt_cmd_getc(aR)) == '?') {
2126 ch = rxvt_cmd_getc(aR);
2128 if ((buf[len++] = ch) == '4') {
2129 if ((buf[len++] = rxvt_cmd_getc(aR)) == 'i')
2130 break; /* done = 1 */
2133 for (i = 0; i < len; i++)
2134 if (putc(buf[i], fd) == EOF) {
2140 rxvt_pclose_printer(fd);
2142 #endif /* PRINTPIPE */
2148 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
2149 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
2150 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
2151 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC
2155 /*{{{ process non-printing single characters */
2158 rxvt_process_nonprinting(pR_ unsigned char ch)
2161 case C0_ENQ: /* terminal Status */
2162 if (R->rs[Rs_answerbackstring])
2164 (const unsigned char *)R->rs[Rs_answerbackstring],
2165 (unsigned int)STRLEN(R->rs[Rs_answerbackstring]));
2167 rxvt_tt_write(aR_ (unsigned char *)VT100_ANS,
2168 (unsigned int)STRLEN(VT100_ANS));
2170 case C0_BEL: /* bell */
2173 case C0_BS: /* backspace */
2174 rxvt_scr_backspace(aR);
2176 case C0_HT: /* tab */
2177 rxvt_scr_tab(aR_ 1);
2179 case C0_CR: /* carriage return */
2180 rxvt_scr_gotorc(aR_ 0, 0, R_RELATIVE);
2182 case C0_VT: /* vertical tab, form feed */
2184 case C0_LF: /* line feed */
2185 rxvt_scr_index(aR_ UP);
2187 case C0_SO: /* shift out - acs */
2188 rxvt_scr_charset_choose(aR_ 1);
2190 case C0_SI: /* shift in - acs */
2191 rxvt_scr_charset_choose(aR_ 0);
2198 /*{{{ process VT52 escape sequences */
2201 rxvt_process_escape_vt52(pR_ unsigned char ch)
2206 case 'A': /* cursor up */
2207 rxvt_scr_gotorc(aR_ -1, 0, R_RELATIVE | C_RELATIVE);
2209 case 'B': /* cursor down */
2210 rxvt_scr_gotorc(aR_ 1, 0, R_RELATIVE | C_RELATIVE);
2212 case 'C': /* cursor right */
2213 rxvt_scr_gotorc(aR_ 0, 1, R_RELATIVE | C_RELATIVE);
2215 case 'D': /* cursor left */
2216 rxvt_scr_gotorc(aR_ 0, -1, R_RELATIVE | C_RELATIVE);
2218 case 'H': /* cursor home */
2219 rxvt_scr_gotorc(aR_ 0, 0, 0);
2221 case 'I': /* cursor up and scroll down if needed */
2222 rxvt_scr_index(aR_ DN);
2224 case 'J': /* erase to end of screen */
2225 rxvt_scr_erase_screen(aR_ 0);
2227 case 'K': /* erase to end of line */
2228 rxvt_scr_erase_line(aR_ 0);
2230 case 'Y': /* move to specified row and col */
2231 /* full command is 'ESC Y row col' where row and col
2232 * are encoded by adding 32 and sending the ascii
2233 * character. eg. SPACE = 0, '+' = 13, '0' = 18,
2235 row = rxvt_cmd_getc(aR) - ' ';
2236 col = rxvt_cmd_getc(aR) - ' ';
2237 rxvt_scr_gotorc(aR_ row, col, 0);
2239 case 'Z': /* identify the terminal type */
2240 rxvt_tt_printf(aR_ "\033/Z"); /* I am a VT100 emulating a VT52 */
2242 case '<': /* turn off VT52 mode */
2243 PrivMode(0, PrivMode_vt52);
2245 case 'F': /* use special graphics character set */
2246 case 'G': /* use regular character set */
2249 case '=': /* use alternate keypad mode */
2250 case '>': /* use regular keypad mode */
2258 /*{{{ process escape sequences */
2261 rxvt_process_escape_seq(pR)
2263 unsigned char ch = rxvt_cmd_getc(aR);
2265 if (R->PrivateModes & PrivMode_vt52) {
2266 rxvt_process_escape_vt52(aR_ ch);
2271 /* case 1: do_tek_mode (); break; */
2273 if (rxvt_cmd_getc(aR) == '8')
2277 rxvt_scr_charset_set(aR_ 0, (unsigned int)rxvt_cmd_getc(aR));
2280 rxvt_scr_charset_set(aR_ 1, (unsigned int)rxvt_cmd_getc(aR));
2283 rxvt_scr_charset_set(aR_ 2, (unsigned int)rxvt_cmd_getc(aR));
2286 rxvt_scr_charset_set(aR_ 3, (unsigned int)rxvt_cmd_getc(aR));
2288 #ifdef MULTICHAR_SET
2290 rxvt_scr_charset_set(aR_ -2, (unsigned int)rxvt_cmd_getc(aR));
2295 rxvt_scr_backindex(aR);
2299 rxvt_scr_cursor(aR_ SAVE);
2302 rxvt_scr_cursor(aR_ RESTORE);
2306 rxvt_scr_forwardindex(aR);
2311 PrivMode((ch == '='), PrivMode_aplKP);
2318 rxvt_scr_index(aR_ UP);
2321 /* 8.3.87: NEXT LINE */
2322 case C1_NEL: /* ESC E */
2324 uint32_t nlcr[] = { '\n', '\r' };
2325 rxvt_scr_add_lines(aR_ nlcr, 1, 2);
2329 /* kidnapped escape sequence: Should be 8.3.48 */
2330 case C1_ESA: /* ESC G */
2331 rxvt_process_graphics(aR);
2334 /* 8.3.63: CHARACTER TABULATION SET */
2335 case C1_HTS: /* ESC H */
2336 rxvt_scr_set_tab(aR_ 1);
2339 /* 8.3.105: REVERSE LINE FEED */
2340 case C1_RI: /* ESC M */
2341 rxvt_scr_index(aR_ DN);
2344 /* 8.3.142: SINGLE-SHIFT TWO */
2345 /*case C1_SS2: scr_single_shift (2); break; */
2347 /* 8.3.143: SINGLE-SHIFT THREE */
2348 /*case C1_SS3: scr_single_shift (3); break; */
2350 /* 8.3.27: DEVICE CONTROL STRING */
2351 case C1_DCS: /* ESC P */
2352 rxvt_process_dcs_seq(aR);
2355 /* 8.3.110: SINGLE CHARACTER INTRODUCER */
2356 case C1_SCI: /* ESC Z */
2357 rxvt_tt_write(aR_ (const unsigned char *)ESCZ_ANSWER,
2358 (unsigned int)(sizeof(ESCZ_ANSWER) - 1));
2359 break; /* steal obsolete ESC [ c */
2361 /* 8.3.16: CONTROL SEQUENCE INTRODUCER */
2362 case C1_CSI: /* ESC [ */
2363 rxvt_process_csi_seq(aR);
2366 /* 8.3.90: OPERATING SYSTEM COMMAND */
2367 case C1_OSC: /* ESC ] */
2368 rxvt_process_osc_seq(aR);
2371 /* 8.3.106: RESET TO INITIAL STATE */
2373 rxvt_scr_poweron(aR);
2374 rxvt_scrollbar_show(aR_ 1);
2377 /* 8.3.79: LOCKING-SHIFT TWO (see ISO2022) */
2379 rxvt_scr_charset_choose(aR_ 2);
2382 /* 8.3.81: LOCKING-SHIFT THREE (see ISO2022) */
2384 rxvt_scr_charset_choose(aR_ 3);
2390 /*{{{ process CONTROL SEQUENCE INTRODUCER (CSI) sequences `ESC[' */
2394 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
2395 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
2396 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
2397 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
2398 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
2399 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
2400 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
2401 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
2404 #define make_byte(b7,b6,b5,b4,b3,b2,b1,b0) \
2405 (((b7) << 7) | ((b6) << 6) | ((b5) << 5) | ((b4) << 4) \
2406 | ((b3) << 3) | ((b2) << 2) | ((b1) << 1) | (b0))
2407 #define get_byte_array_bit(array, bit) \
2408 (!!((array)[(bit) / 8] & (128 >> ((bit) & 7))))
2410 const unsigned char csi_defaults[] = {
2411 make_byte(1,1,1,1,1,1,1,1), /* @, A, B, C, D, E, F, G, */
2412 make_byte(1,1,0,0,1,1,0,0), /* H, I, J, K, L, M, N, O, */
2413 make_byte(1,0,1,1,1,1,1,0), /* P, Q, R, S, T, U, V, W, */
2414 make_byte(1,1,1,0,0,0,1,0), /* X, Y, Z, [, \, ], ^, _, */
2415 make_byte(1,1,1,0,1,1,1,0), /* `, a, b, c, d, e, f, g, */
2416 make_byte(0,0,1,1,0,0,0,0), /* h, i, j, k, l, m, n, o, */
2417 make_byte(0,0,0,0,0,0,0,0), /* p, q, r, s, t, u, v, w, */
2418 make_byte(0,0,0,0,0,0,0,0) /* x, y, z, {, |, }, ~, */
2424 rxvt_process_csi_seq(pR)
2426 unsigned char ch, priv, i;
2427 unsigned int nargs, p;
2431 for (nargs = ESC_ARGS; nargs > 0;)
2435 ch = rxvt_cmd_getc(aR);
2436 if (ch >= '<' && ch <= '?') { /* '<' '=' '>' '?' */
2438 ch = rxvt_cmd_getc(aR);
2440 /* read any numerical arguments */
2441 for (n = -1; ch < CSI_ICH; ) {
2446 n = n * 10 + ch - '0';
2447 } else if (ch == ';') {
2448 if (nargs < ESC_ARGS)
2451 } else if (ch == '\b') {
2452 rxvt_scr_backspace(aR);
2453 } else if (ch == C0_ESC) {
2454 rxvt_process_escape_seq(aR);
2456 } else if (ch < ' ') {
2457 rxvt_process_nonprinting(aR_ ch);
2459 ch = rxvt_cmd_getc(aR);
2465 if (nargs < ESC_ARGS)
2469 ndef = get_byte_array_bit(csi_defaults, i);
2470 for (p = 0; p < nargs; p++)
2475 fprintf(stderr, "CSI ");
2476 for (p = 0; p < nargs; p++)
2477 fprintf(stderr, "%d%s", arg[p], p < nargs - 1 ? ";" : "");
2478 fprintf(stderr, "%c\n", ch);
2482 * private mode handling
2487 if (ch == CSI_DA) /* secondary device attributes */
2488 rxvt_tt_printf(aR_ "\033[>%d;%-.8s;0c", 'R', VSTRING);
2491 if (ch == 'h' || ch == 'l' || ch == 'r' || ch == 's' || ch == 't')
2492 rxvt_process_terminal_mode(aR_ ch, priv, nargs, arg);
2500 * ISO/IEC 6429:1992(E) CSI sequences (defaults in parentheses)
2503 case CSI_MC: /* 8.3.83: (0) MEDIA COPY */
2505 case 0: /* initiate transfer to primary aux device */
2506 rxvt_scr_printscreen(aR_ 0);
2508 case 5: /* start relay to primary aux device */
2509 rxvt_process_print_pipe(aR);
2515 case CSI_CUU: /* 8.3.22: (1) CURSOR UP */
2516 case CSI_VPR: /* 8.3.161: (1) LINE POSITION FORWARD */
2519 case CSI_CUD: /* 8.3.19: (1) CURSOR DOWN */
2520 case CSI_VPB: /* 8.3.160: (1) LINE POSITION BACKWARD */
2521 rxvt_scr_gotorc(aR_ arg[0], 0, RELATIVE);
2524 case CSI_CUB: /* 8.3.18: (1) CURSOR LEFT */
2525 case CSI_HPB: /* 8.3.59: (1) CHARACTER POSITION BACKWARD */
2528 #else /* emulate common DEC VTs */
2529 arg[0] = arg[0] ? -arg[0] : -1;
2532 case CSI_CUF: /* 8.3.20: (1) CURSOR RIGHT */
2533 case CSI_HPR: /* 8.3.60: (1) CHARACTER POSITION FORWARD */
2535 rxvt_scr_gotorc(aR_ 0, arg[0], RELATIVE);
2536 #else /* emulate common DEC VTs */
2537 rxvt_scr_gotorc(aR_ 0, arg[0] ? arg[0] : 1, RELATIVE);
2541 case CSI_CPL: /* 8.3.13: (1) CURSOR PRECEDING LINE */
2544 case CSI_CNL: /* 8.3.12: (1) CURSOR NEXT LINE */
2545 rxvt_scr_gotorc(aR_ arg[0], 0, R_RELATIVE);
2548 case CSI_CHA: /* 8.3.9: (1) CURSOR CHARACTER ABSOLUTE */
2549 case CSI_HPA: /* 8.3.58: (1) CURSOR POSITION ABSOLUTE */
2550 rxvt_scr_gotorc(aR_ 0, arg[0] - 1, R_RELATIVE);
2553 case CSI_VPA: /* 8.3.159: (1) LINE POSITION ABSOLUTE */
2554 rxvt_scr_gotorc(aR_ arg[0] - 1, 0, C_RELATIVE);
2557 case CSI_CUP: /* 8.3.21: (1,1) CURSOR POSITION */
2558 case CSI_HVP: /* 8.3.64: (1,1) CHARACTER AND LINE POSITION */
2559 rxvt_scr_gotorc(aR_ arg[0] - 1, nargs < 2 ? 0 : (arg[1] - 1), 0);
2562 case CSI_CBT: /* 8.3.7: (1) CURSOR BACKWARD TABULATION */
2565 case CSI_CHT: /* 8.3.10: (1) CURSOR FORWARD TABULATION */
2566 rxvt_scr_tab(aR_ arg[0]);
2569 case CSI_ED: /* 8.3.40: (0) ERASE IN PAGE */
2570 rxvt_scr_erase_screen(aR_ arg[0]);
2573 case CSI_EL: /* 8.3.42: (0) ERASE IN LINE */
2574 rxvt_scr_erase_line(aR_ arg[0]);
2577 case CSI_ICH: /* 8.3.65: (1) INSERT CHARACTER */
2578 rxvt_scr_insdel_chars(aR_ arg[0], INSERT);
2581 case CSI_IL: /* 8.3.68: (1) INSERT LINE */
2582 rxvt_scr_insdel_lines(aR_ arg[0], INSERT);
2585 case CSI_DL: /* 8.3.33: (1) DELETE LINE */
2586 rxvt_scr_insdel_lines(aR_ arg[0], DELETE);
2589 case CSI_ECH: /* 8.3.39: (1) ERASE CHARACTER */
2590 rxvt_scr_insdel_chars(aR_ arg[0], ERASE);
2593 case CSI_DCH: /* 8.3.26: (1) DELETE CHARACTER */
2594 rxvt_scr_insdel_chars(aR_ arg[0], DELETE);
2597 case CSI_SD: /* 8.3.114: (1) SCROLL DOWN */
2600 case CSI_SU: /* 8.3.148: (1) SCROLL UP */
2601 rxvt_scroll_text(aR_ R->screen.tscroll, R->screen.bscroll, arg[0], 0);
2604 case CSI_DA: /* 8.3.24: (0) DEVICE ATTRIBUTES */
2605 rxvt_tt_write(aR_ (const unsigned char *)VT100_ANS,
2606 (unsigned int)(sizeof(VT100_ANS) - 1));
2609 case CSI_SGR: /* 8.3.118: (0) SELECT GRAPHIC RENDITION */
2610 rxvt_process_sgr_mode(aR_ nargs, arg);
2613 case CSI_DSR: /* 8.3.36: (0) DEVICE STATUS REPORT */
2615 case 5: /* DSR requested */
2616 rxvt_tt_printf(aR_ "\033[0n");
2618 case 6: /* CPR requested */
2619 rxvt_scr_report_position(aR);
2621 #if defined (ENABLE_DISPLAY_ANSWER)
2622 case 7: /* unofficial extension */
2623 rxvt_tt_printf(aR_ "%-.250s\n", R->rs[Rs_display_name]);
2626 case 8: /* unofficial extension */
2627 rxvt_xterm_seq(aR_ XTerm_title, APL_NAME "-" VERSION, CHAR_ST);
2632 case CSI_TBC: /* 8.3.155: (0) TABULATION CLEAR */
2634 case 0: /* char tab stop cleared at active position */
2635 rxvt_scr_set_tab(aR_ 0);
2637 /* case 1: */ /* line tab stop cleared in active line */
2638 /* case 2: */ /* char tab stops cleared in active line */
2639 case 3: /* all char tab stops are cleared */
2640 /* case 4: */ /* all line tab stops are cleared */
2641 case 5: /* all tab stops are cleared */
2642 rxvt_scr_set_tab(aR_ -1);
2647 case CSI_CTC: /* 8.3.17: (0) CURSOR TABULATION CONTROL */
2649 case 0: /* char tab stop set at active position */
2650 rxvt_scr_set_tab(aR_ 1);
2651 break; /* = ESC H */
2652 /* case 1: */ /* line tab stop set at active line */
2653 case 2: /* char tab stop cleared at active position */
2654 rxvt_scr_set_tab(aR_ 0);
2655 break; /* = ESC [ 0 g */
2656 /* case 3: */ /* line tab stop cleared at active line */
2657 /* case 4: */ /* char tab stops cleared at active line */
2658 case 5: /* all char tab stops are cleared */
2659 rxvt_scr_set_tab(aR_ -1);
2660 break; /* = ESC [ 3 g */
2661 /* case 6: */ /* all line tab stops are cleared */
2665 case CSI_RM: /* 8.3.107: RESET MODE */
2667 rxvt_scr_insert_mode(aR_ 0);
2670 case CSI_SM: /* 8.3.126: SET MODE */
2672 rxvt_scr_insert_mode(aR_ 1);
2676 * PRIVATE USE beyond this point. All CSI_7? sequences here
2678 case CSI_72: /* DECSTBM: set top and bottom margins */
2680 rxvt_scr_scroll_region(aR_ arg[0] - 1, MAX_ROWS - 1);
2681 else if (nargs == 0 || arg[0] >= arg[1])
2682 rxvt_scr_scroll_region(aR_ 0, MAX_ROWS - 1);
2684 rxvt_scr_scroll_region(aR_ arg[0] - 1, arg[1] - 1);
2688 rxvt_scr_cursor(aR_ SAVE);
2691 rxvt_scr_cursor(aR_ RESTORE);
2696 rxvt_process_window_ops(aR_ arg, nargs);
2700 case CSI_78: /* DECREQTPARM */
2701 if (arg[0] == 0 || arg[0] == 1)
2702 rxvt_tt_printf(aR_ "\033[%d;1;1;112;112;1;0x", arg[0] + 2);
2715 rxvt_process_window_ops(pR_ const int *args, unsigned int nargs)
2721 XWindowAttributes wattr;
2730 case 1: /* deiconify window */
2731 XMapWindow(R->Xdisplay, R->TermWin.parent[0]);
2733 case 2: /* iconify window */
2734 XIconifyWindow(R->Xdisplay, R->TermWin.parent[0],
2735 DefaultScreen(R->Xdisplay));
2737 case 3: /* set position (pixels) */
2738 XMoveWindow(R->Xdisplay, R->TermWin.parent[0], args[1], args[2]);
2740 case 4: /* set size (pixels) */
2741 rxvt_set_widthheight(aR_ (unsigned int)args[2], (unsigned int)args[1]);
2743 case 5: /* raise window */
2744 XRaiseWindow(R->Xdisplay, R->TermWin.parent[0]);
2746 case 6: /* lower window */
2747 XLowerWindow(R->Xdisplay, R->TermWin.parent[0]);
2749 case 7: /* refresh window */
2750 rxvt_scr_touch(aR_ True);
2752 case 8: /* set size (chars) */
2753 rxvt_set_widthheight(aR_ (unsigned int)(args[2] * R->TermWin.fwidth),
2754 (unsigned int)(args[1] * R->TermWin.fheight));
2757 if (args[0] >= 24) /* set height (chars) */
2758 rxvt_set_widthheight(aR_ (unsigned int)R->TermWin.width,
2759 (unsigned int)(args[1] * R->TermWin.fheight));
2762 * reports - some output format copied from XTerm
2764 case 11: /* report window state */
2765 XGetWindowAttributes(R->Xdisplay, R->TermWin.parent[0], &wattr);
2766 rxvt_tt_printf(aR_ "\033[%dt", wattr.map_state == IsViewable ? 1 : 2);
2768 case 13: /* report window position */
2769 XGetWindowAttributes(R->Xdisplay, R->TermWin.parent[0], &wattr);
2770 XTranslateCoordinates(R->Xdisplay, R->TermWin.parent[0], wattr.root,
2771 -wattr.border_width, -wattr.border_width,
2773 rxvt_tt_printf(aR_ "\033[3;%d;%dt", x, y);
2775 case 14: /* report window size (pixels) */
2776 XGetWindowAttributes(R->Xdisplay, R->TermWin.parent[0], &wattr);
2777 rxvt_tt_printf(aR_ "\033[4;%d;%dt", wattr.height, wattr.width);
2779 case 18: /* report window size (chars) */
2780 rxvt_tt_printf(aR_ "\033[8;%d;%dt", R->TermWin.nrow, R->TermWin.ncol);
2782 #if 0 /* XXX: currently disabled due to security concerns */
2783 case 20: /* report icon label */
2784 XGetIconName(R->Xdisplay, R->TermWin.parent[0], &s);
2785 rxvt_tt_printf(aR_ "\033]L%-.200s\234", s ? s : ""); /* 8bit ST */
2787 case 21: /* report window title */
2788 XFetchName(R->Xdisplay, R->TermWin.parent[0], &s);
2789 rxvt_tt_printf(aR_ "\033]l%-.200s\234", s ? s : ""); /* 8bit ST */
2796 /*----------------------------------------------------------------------*/
2798 * get input up until STRING TERMINATOR (or BEL)
2799 * ends_how is terminator used. returned input must be free()d
2803 rxvt_get_to_st(pR_ unsigned char *ends_how)
2805 int seen_esc = 0; /* seen escape? */
2808 unsigned char ch, string[STRING_MAX];
2810 for (; (ch = rxvt_cmd_getc(aR));) {
2813 || (ch == 0x5c && seen_esc)) /* 7bit ST */
2818 } else if (ch == '\t')
2819 ch = ' '; /* translate '\t' to space */
2820 else if (ch < 0x08 || (ch > 0x0d && ch < 0x20))
2821 return NULL; /* other control character - exit */
2822 if (n < sizeof(string) - 1)
2827 if ((s = (unsigned char *)rxvt_malloc(n)) == NULL)
2829 *ends_how = (ch == 0x5c ? C0_ESC : ch);
2830 STRNCPY(s, string, n);
2834 /*----------------------------------------------------------------------*/
2836 * process DEVICE CONTROL STRING `ESC P ... (ST|BEL)' or `0x90 ... (ST|BEL)'
2840 rxvt_process_dcs_seq(pR)
2842 unsigned char eh, *s;
2846 s = rxvt_get_to_st(aR_ &eh);
2852 /*----------------------------------------------------------------------*/
2854 * process OPERATING SYSTEM COMMAND sequence `ESC ] Ps ; Pt (ST|BEL)'
2858 rxvt_process_osc_seq(pR)
2860 unsigned char ch, eh, *s;
2863 ch = rxvt_cmd_getc(aR);
2864 for (arg = 0; isdigit(ch); ch = rxvt_cmd_getc(aR))
2865 arg = arg * 10 + (ch - '0');
2868 s = rxvt_get_to_st(aR_ &eh);
2871 * rxvt_menubar_dispatch() violates the constness of the string,
2874 if (arg == XTerm_Menu)
2875 #if 0 /* XXX: currently disabled due to security concerns */
2876 rxvt_menubar_dispatch(aR_ (char *)s);
2881 rxvt_xterm_seq(aR_ arg, (char *)s, eh);
2887 * XTerm escape sequences: ESC ] Ps;Pt (ST|BEL)
2888 * 0 = change iconName/title
2889 * 1 = change iconName
2892 * 12 = change text color
2893 * 13 = change mouse foreground color
2894 * 17 = change highlight character colour
2895 * 18 = change bold character color
2896 * 19 = change underlined character color
2897 * 46 = change logfile (not implemented)
2901 * 10 = menu (may change in future)
2903 * 39 = change default fg color
2904 * 49 = change default bg color
2905 * 55 = dump scrollback buffer and all of screen
2909 rxvt_xterm_seq(pR_ int op, const char *str, unsigned char resp __attribute__((unused)))
2915 assert(str != NULL);
2918 rxvt_set_title(aR_ str);
2920 case XTerm_iconName:
2921 rxvt_set_iconName(aR_ str);
2924 rxvt_set_title(aR_ str);
2927 for (buf = (char *)str; buf && *buf;) {
2928 if ((name = STRCHR(buf, ';')) == NULL)
2932 if (color < 0 || color >= TOTAL_COLORS)
2934 if ((buf = STRCHR(name, ';')) != NULL)
2936 rxvt_set_window_color(aR_ color + minCOLOR, name);
2939 #ifndef NO_CURSORCOLOR
2940 case XTerm_Color_cursor:
2941 rxvt_set_window_color(aR_ Color_cursor, str);
2944 case XTerm_Color_pointer:
2945 rxvt_set_window_color(aR_ Color_pointer, str);
2947 #ifndef NO_BOLD_UNDERLINE_REVERSE
2948 case XTerm_Color_BD:
2949 rxvt_set_window_color(aR_ Color_BD, str);
2951 case XTerm_Color_UL:
2952 rxvt_set_window_color(aR_ Color_UL, str);
2954 case XTerm_Color_RV:
2955 rxvt_set_window_color(aR_ Color_RV, str);
2961 * rxvt_menubar_dispatch() violates the constness of the string,
2962 * so DON'T do it here
2968 rxvt_scale_pixmap(aR_ ""); /* reset to default scaling */
2969 rxvt_set_bgPixmap(aR_ str); /* change pixmap */
2971 rxvt_scr_touch(aR_ True);
2973 while ((str = STRCHR(str, ';')) != NULL) {
2976 changed += rxvt_scale_pixmap(aR_ str);
2980 #ifdef XPM_BACKGROUND
2981 rxvt_resize_pixmap(aR);
2983 rxvt_scr_touch(aR_ True);
2987 case XTerm_restoreFG:
2988 rxvt_set_window_color(aR_ Color_fg, str);
2990 case XTerm_restoreBG:
2991 rxvt_set_window_color(aR_ Color_bg, str);
2996 rxvt_change_font(aR_ 0, str);
2999 case XTerm_dumpscreen: /* no error notices */
3002 if ((fd = open(str, O_RDWR | O_CREAT | O_EXCL, 0600)) >= 0) {
3003 rxvt_scr_dump(aR_ fd);
3011 /*----------------------------------------------------------------------*/
3013 /*{{{ process DEC private mode sequences `ESC [ ? Ps mode' */
3015 * mode can only have the following values:
3021 * so no need for fancy checking
3025 rxvt_privcases(pR_ int mode, unsigned long bit)
3030 R->SavedModes |= (R->PrivateModes & bit);
3034 state = (R->SavedModes & bit) ? 1 : 0; /* no overlapping */
3036 state = (mode == 't') ? !(R->PrivateModes & bit) : mode;
3037 PrivMode(state, bit);
3042 /* we're not using priv _yet_ */
3045 rxvt_process_terminal_mode(pR_ int mode, int priv __attribute__((unused)), unsigned int nargs, const int *arg)
3049 static const struct {
3051 const unsigned long bit;
3053 { 1, PrivMode_aplCUR },
3054 { 2, PrivMode_vt52 },
3055 { 3, PrivMode_132 },
3056 { 4, PrivMode_smoothScroll },
3057 { 5, PrivMode_rVideo },
3058 { 6, PrivMode_relOrigin },
3059 { 7, PrivMode_Autowrap },
3060 { 9, PrivMode_MouseX10 },
3062 { menuBar_esc, PrivMode_menuBar },
3064 #ifdef scrollBar_esc
3065 { scrollBar_esc, PrivMode_scrollBar },
3067 { 25, PrivMode_VisibleCursor },
3068 { 35, PrivMode_ShiftKeys },
3069 { 40, PrivMode_132OK },
3070 { 47, PrivMode_Screen },
3071 { 66, PrivMode_aplKP },
3072 #ifndef NO_BACKSPACE_KEY
3073 { 67, PrivMode_BackSpace },
3075 { 1000, PrivMode_MouseX11 },
3076 { 1010, PrivMode_TtyOutputInh },
3077 { 1011, PrivMode_Keypress },
3078 { 1047, PrivMode_Screen },
3084 /* make lo/hi boolean */
3086 mode = 0; /* reset */
3087 else if (mode == 'h')
3090 for (i = 0; i < nargs; i++) {
3093 /* basic handling */
3094 for (j = 0; j < (sizeof(argtopriv)/sizeof(argtopriv[0])); j++)
3095 if (argtopriv[j].argval == arg[i]) {
3096 state = rxvt_privcases(aR_ mode, argtopriv[j].bit);
3100 /* extra handling for values with state unkept */
3103 case 1048: /* alternative cursor save */
3105 rxvt_scr_cursor(aR_ RESTORE);
3107 rxvt_scr_cursor(aR_ SAVE);
3110 continue; /* for(;i;) */
3113 /* extra handling for values with valid 0 or 1 state */
3115 /* case 1: - application cursor keys */
3116 case 2: /* VT52 mode */
3117 /* oddball mode. should be set regardless of set/reset
3118 * parameter. Return from VT52 mode with an ESC < from
3121 PrivMode(1, PrivMode_vt52);
3123 case 3: /* 80/132 */
3124 if (R->PrivateModes & PrivMode_132OK)
3125 rxvt_set_widthheight(aR_
3126 (unsigned int)((state ? 132 : 80) * R->TermWin.fwidth),
3127 (unsigned int)R->TermWin.height);
3129 case 4: /* smooth scrolling */
3131 R->Options &= ~Opt_jumpScroll;
3133 R->Options |= Opt_jumpScroll;
3135 case 5: /* reverse video */
3136 rxvt_scr_rvideo_mode(aR_ state);
3138 case 6: /* relative/absolute origins */
3139 rxvt_scr_relative_origin(aR_ state);
3141 case 7: /* autowrap */
3142 rxvt_scr_autowrap(aR_ state);
3144 /* case 8: - auto repeat, can't do on a per window basis */
3145 case 9: /* X10 mouse reporting */
3146 if (state) /* orthogonal */
3147 R->PrivateModes &= ~(PrivMode_MouseX11);
3152 rxvt_map_menuBar(aR_ state);
3156 #ifdef scrollBar_esc
3158 if (rxvt_scrollbar_mapping(aR_ state)) {
3159 rxvt_resize_all_windows(aR_ 0, 0, 0);
3160 rxvt_scr_touch(aR_ True);
3164 case 25: /* visible/invisible cursor */
3165 rxvt_scr_cursor_visible(aR_ state);
3167 /* case 35: - shift keys */
3168 /* case 40: - 80 <--> 132 mode */
3169 case 47: /* secondary screen */
3170 rxvt_scr_change_screen(aR_ state);
3172 /* case 66: - application key pad */
3173 /* case 67: - backspace key */
3174 case 1000: /* X11 mouse reporting */
3175 if (state) /* orthogonal */
3176 R->PrivateModes &= ~(PrivMode_MouseX10);
3180 break; /* X11 mouse highlighting */
3182 case 1010: /* scroll to bottom on TTY output inhibit */
3184 R->Options &= ~Opt_scrollTtyOutput;
3186 R->Options |= Opt_scrollTtyOutput;
3188 case 1011: /* scroll to bottom on key press */
3190 R->Options |= Opt_scrollTtyKeypress;
3192 R->Options &= ~Opt_scrollTtyKeypress;
3194 case 1047: /* secondary screen w/ clearing */
3195 if (R->current_screen != PRIMARY)
3196 rxvt_scr_erase_screen(aR_ 2);
3197 rxvt_scr_change_screen(aR_ state);
3206 /*{{{ process sgr sequences */
3209 rxvt_process_sgr_mode(pR_ unsigned int nargs, const int *arg)
3216 rxvt_scr_rendition(aR_ 0, ~RS_None);
3219 for (i = 0; i < nargs; i++) {
3223 rendset = 0, rendstyle = ~RS_None;
3226 rendset = 1, rendstyle = RS_Bold;
3229 rendset = 1, rendstyle = RS_Uline;
3232 rendset = 1, rendstyle = RS_Blink;
3235 rendset = 1, rendstyle = RS_RVid;
3238 rendset = 0, rendstyle = RS_Bold;
3241 rendset = 0, rendstyle = RS_Uline;
3244 rendset = 0, rendstyle = RS_Blink;
3247 rendset = 0, rendstyle = RS_RVid;
3250 if (rendset != -1) {
3251 rxvt_scr_rendition(aR_ rendset, rendstyle);
3252 continue; /* for(;i;) */
3257 case 31: /* set fg color */
3264 rxvt_scr_color(aR_ (unsigned int)(minCOLOR + (arg[i] - 30)),
3269 if (nargs > i + 2 && arg[i + 1] == 5) {
3270 rxvt_scr_color(aR_ (unsigned int)(minCOLOR + arg[i + 2]),
3276 case 39: /* default fg */
3277 rxvt_scr_color(aR_ Color_fg, Color_fg);
3281 case 41: /* set bg color */
3288 rxvt_scr_color(aR_ (unsigned int)(minCOLOR + (arg[i] - 40)),
3293 if (nargs > i + 2 && arg[i + 1] == 5) {
3294 rxvt_scr_color(aR_ (unsigned int)(minCOLOR + arg[i + 2]),
3300 case 49: /* default bg */
3301 rxvt_scr_color(aR_ Color_bg, Color_bg);
3304 #ifndef NO_BRIGHTCOLOR
3306 case 91: /* set bright fg color */
3313 rxvt_scr_color(aR_ (unsigned int)(minBrightCOLOR + (arg[i] - 90)),
3317 case 101: /* set bright bg color */
3324 rxvt_scr_color(aR_ (unsigned int)(minBrightCOLOR + (arg[i] - 100)),
3333 /*{{{ process Rob Nation's own graphics mode sequences */
3336 rxvt_process_graphics(pR)
3338 unsigned char ch, cmd = rxvt_cmd_getc(aR);
3340 #ifndef RXVT_GRAPHICS
3341 if (cmd == 'Q') { /* query graphics */
3342 rxvt_tt_printf(aR_ "\033G0\n"); /* no graphics */
3345 /* swallow other graphics sequences until terminating ':' */
3347 ch = rxvt_cmd_getc(aR);
3352 unsigned char *text = NULL;
3354 if (cmd == 'Q') { /* query graphics */
3355 rxvt_tt_printf(aR_ "\033G1\n"); /* yes, graphics (color) */
3358 for (nargs = 0; nargs < (sizeof(args) / sizeof(args[0])) - 1;) {
3361 ch = rxvt_cmd_getc(aR);
3363 if (neg || ch == '+')
3364 ch = rxvt_cmd_getc(aR);
3366 for (args[nargs] = 0; isdigit(ch); ch = rxvt_cmd_getc(aR))
3367 args[nargs] = args[nargs] * 10 + (ch - '0');
3369 args[nargs] = -args[nargs];
3377 if ((cmd == 'T') && (nargs >= 5)) {
3378 int i, len = args[4];
3380 text = rxvt_malloc((len + 1) * sizeof(char));
3383 for (i = 0; i < len; i++)
3384 text[i] = rxvt_cmd_getc(aR);
3388 rxvt_Gr_do_graphics(aR_ cmd, nargs, args, text);
3393 /* ------------------------------------------------------------------------- */
3396 * Send printf() formatted output to the command.
3397 * Only use for small amounts of data.
3401 rxvt_tt_printf(pR_ const char *fmt,...)
3404 unsigned char buf[256];
3406 va_start(arg_ptr, fmt);
3407 vsprintf((char *)buf, fmt, arg_ptr);
3409 rxvt_tt_write(aR_ buf, (unsigned int)STRLEN(buf));
3412 /* ---------------------------------------------------------------------- */
3413 /* Addresses pasting large amounts of data and rxvt hang
3414 * code pinched from xterm (v_write()) and applied originally to
3416 * Write data to the pty as typed by the user, pasted with the mouse,
3417 * or generated by us in response to a query ESC sequence.
3421 rxvt_tt_write(pR_ const unsigned char *d, unsigned int len)
3423 #define MAX_PTY_WRITE 256 /* POSIX minimum MAX_INPUT */
3426 unsigned char *v_buffer, /* start of physical buffer */
3427 *v_bufstr, /* start of current buffer pending */
3428 *v_bufptr, /* end of current buffer pending */
3429 *v_bufend; /* end of physical buffer */
3431 if (R->v_bufstr == NULL && len > 0) {
3432 p = (len / MAX_PTY_WRITE + 1) * MAX_PTY_WRITE;
3433 v_buffer = v_bufstr = v_bufptr = (unsigned char *)rxvt_malloc(p);
3434 v_bufend = v_buffer + p;
3436 v_buffer = R->v_buffer;
3437 v_bufstr = R->v_bufstr;
3438 v_bufptr = R->v_bufptr;
3439 v_bufend = R->v_bufend;
3443 * Append to the block we already have. Always doing this simplifies the
3444 * code, and isn't too bad, either. If this is a short block, it isn't
3445 * too expensive, and if this is a long block, we won't be able to write
3449 if (v_bufend < v_bufptr + len) { /* run out of room */
3450 if (v_bufstr != v_buffer) {
3451 /* there is unused space, move everything down */
3452 MEMMOVE(v_buffer, v_bufstr,
3453 (unsigned int)(v_bufptr - v_bufstr));
3454 v_bufptr -= v_bufstr - v_buffer;
3455 v_bufstr = v_buffer;
3457 if (v_bufend < v_bufptr + len) {
3458 /* still won't fit: get more space */
3459 /* use most basic realloc because an error is not fatal. */
3460 unsigned int size = v_bufptr - v_buffer;
3461 unsigned int reallocto;
3463 reallocto = ((size + len) / MAX_PTY_WRITE + 1) * MAX_PTY_WRITE;
3464 v_buffer = (unsigned char *)realloc(v_buffer, reallocto);
3465 /* save across realloc */
3467 v_bufstr = v_buffer;
3468 v_bufptr = v_buffer + size;
3469 v_bufend = v_buffer + reallocto;
3470 } else { /* no memory: ignore entire write request */
3471 rxvt_print_error("data loss: cannot allocate buffer space");
3472 v_buffer = v_bufstr; /* restore clobbered pointer */
3476 if (v_bufend >= v_bufptr + len) { /* new stuff will fit */
3477 MEMCPY(v_bufptr, d, len);
3483 * Write out as much of the buffer as we can.
3484 * Be careful not to overflow the pty's input silo.
3485 * We are conservative here and only write a small amount at a time.
3487 * If we can't push all the data into the pty yet, we expect write
3488 * to return a non-negative number less than the length requested
3489 * (if some data written) or -1 and set errno to EAGAIN,
3490 * EWOULDBLOCK, or EINTR (if no data written).
3492 * (Not all systems do this, sigh, so the code is actually
3493 * a little more forgiving.)
3495 if ((p = v_bufptr - v_bufstr) > 0) {
3496 riten = write(R->cmd_fd, v_bufstr, min(p, MAX_PTY_WRITE));
3500 if (v_bufstr >= v_bufptr) /* we wrote it all */
3501 v_bufstr = v_bufptr = v_buffer;
3504 * If we have lots of unused memory allocated, return it
3506 if (v_bufend - v_bufptr > MAX_PTY_WRITE * 8) { /* arbitrary hysteresis */
3507 /* save pointers across realloc */
3508 unsigned int start = v_bufstr - v_buffer;
3509 unsigned int size = v_bufptr - v_buffer;
3510 unsigned int reallocto;
3512 reallocto = (size / MAX_PTY_WRITE + 1) * MAX_PTY_WRITE;
3513 v_buffer = (unsigned char *)realloc(v_buffer, reallocto);
3515 v_bufstr = v_buffer + start;
3516 v_bufptr = v_buffer + size;
3517 v_bufend = v_buffer + reallocto;
3519 /* should we print a warning if couldn't return memory? */
3520 v_buffer = v_bufstr - start; /* restore clobbered pointer */
3523 R->v_buffer = v_buffer;
3524 R->v_bufstr = v_bufstr;
3525 R->v_bufptr = v_bufptr;
3526 R->v_bufend = v_bufend;
3528 /*----------------------- end-of-file (C source) -----------------------*/