1 /* MS-DOS specific C utilities.
2 Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Contributed by Morten Welinder */
22 /* New display, keyboard, and mouse control by Kim F. Storm */
24 /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */
32 #include <sys/param.h>
36 #include <sys/stat.h> /* for _fixpath */
39 #include <libc/dosio.h> /* for _USE_LFN */
45 #include "termhooks.h"
46 #include "dispextern.h"
53 /* #include <process.h> */
54 /* Damn that local process.h! Instead we can define P_WAIT ourselves. */
69 /* If other `malloc' than ours is used, force our `sbrk' behave like
70 Unix programs expect (resize memory blocks to keep them contiguous).
71 If `sbrk' from `ralloc.c' is NOT used, also zero-out sbrk'ed memory,
72 because that's what `gmalloc' expects to get. */
76 int _crt0_startup_flags
= _CRT0_FLAG_UNIX_SBRK
;
77 #else /* not REL_ALLOC */
78 int _crt0_startup_flags
= (_CRT0_FLAG_UNIX_SBRK
| _CRT0_FLAG_FILL_SBRK_MEMORY
);
79 #endif /* not REL_ALLOC */
80 #endif /* GNU_MALLOC */
82 #endif /* not SYSTEM_MALLOC */
83 #endif /* __DJGPP__ > 1 */
102 /* ------------------------ Mouse control ---------------------------
104 * Coordinates are in screen positions and zero based.
105 * Mouse buttons are numbered from left to right and also zero based.
108 int have_mouse
; /* 0: no, 1: enabled, -1: disabled */
109 static int mouse_visible
;
111 static int mouse_last_x
;
112 static int mouse_last_y
;
114 static int mouse_button_translate
[NUM_MOUSE_BUTTONS
];
115 static int mouse_button_count
;
122 if (have_mouse
> 0 && !mouse_visible
)
125 fprintf (termscript
, "<M_ON>");
127 int86 (0x33, ®s
, ®s
);
137 if (have_mouse
> 0 && mouse_visible
)
140 fprintf (termscript
, "<M_OFF>");
142 int86 (0x33, ®s
, ®s
);
154 fprintf (termscript
, "<M_XY=%dx%d>", x
, y
);
156 mouse_last_x
= regs
.x
.cx
= x
* 8;
157 mouse_last_y
= regs
.x
.dx
= y
* 8;
158 int86 (0x33, ®s
, ®s
);
162 mouse_pressed (b
, xp
, yp
)
167 if (b
>= mouse_button_count
)
170 regs
.x
.bx
= mouse_button_translate
[b
];
171 int86 (0x33, ®s
, ®s
);
173 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
174 return (regs
.x
.bx
!= 0);
178 mouse_released (b
, xp
, yp
)
183 if (b
>= mouse_button_count
)
186 regs
.x
.bx
= mouse_button_translate
[b
];
187 int86 (0x33, ®s
, ®s
);
189 *xp
= regs
.x
.cx
/ 8, *yp
= regs
.x
.dx
/ 8;
190 return (regs
.x
.bx
!= 0);
194 mouse_get_xy (int *x
, int *y
)
199 int86 (0x33, ®s
, ®s
);
205 mouse_get_pos (f
, insist
, bar_window
, part
, x
, y
, time
)
208 Lisp_Object
*bar_window
, *x
, *y
;
209 enum scroll_bar_part
*part
;
216 int86 (0x33, ®s
, ®s
);
219 mouse_get_xy (&ix
, &iy
);
220 selected_frame
->mouse_moved
= 0;
221 *x
= make_number (ix
);
222 *y
= make_number (iy
);
223 *time
= event_timestamp ();
231 mouse_get_xy (&x
, &y
);
232 selected_frame
->mouse_moved
|= (x
!= mouse_last_x
|| y
!= mouse_last_y
);
243 fprintf (termscript
, "<M_INIT>");
246 int86 (0x33, ®s
, ®s
);
250 regs
.x
.dx
= 8 * (ScreenCols () - 1);
251 int86 (0x33, ®s
, ®s
);
255 regs
.x
.dx
= 8 * (ScreenRows () - 1);
256 int86 (0x33, ®s
, ®s
);
262 /* ------------------------- Screen control ----------------------
266 static int internal_terminal
= 0;
268 #ifndef HAVE_X_WINDOWS
269 extern unsigned char ScreenAttrib
;
270 static int screen_face
;
271 static int highlight
;
273 static int screen_size_X
;
274 static int screen_size_Y
;
275 static int screen_size
;
277 static int current_pos_X
;
278 static int current_pos_Y
;
279 static int new_pos_X
;
280 static int new_pos_Y
;
282 static void *startup_screen_buffer
;
283 static int startup_screen_size_X
;
284 static int startup_screen_size_Y
;
285 static int startup_pos_X
;
286 static int startup_pos_Y
;
287 static unsigned char startup_screen_attrib
;
289 static int term_setup_done
;
291 /* Similar to the_only_frame. */
292 struct x_output the_only_x_display
;
294 /* This is never dereferenced. */
295 Display
*x_current_display
;
298 #define SCREEN_SET_CURSOR() \
299 if (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y) \
300 ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X)
303 dos_direct_output (y
, x
, buf
, len
)
309 int t
= (int) ScreenPrimary
+ 2 * (x
+ y
* screen_size_X
);
312 dosmemput (buf
++, 1, t
);
318 /* Flash the screen as a substitute for BEEPs. */
322 do_visible_bell (xorattr
)
323 unsigned char xorattr
;
328 movl _ScreenPrimary,%%eax
335 xorb %%al,%%gs:(%%ebx)
351 : "m" (xorattr
), "g" (screen_size
)
352 : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx");
356 ScreenVisualBell (void)
358 /* This creates an xor-mask that will swap the default fore- and
359 background colors. */
360 do_visible_bell (((the_only_x_display
.foreground_pixel
361 ^ the_only_x_display
.background_pixel
)
366 #ifndef HAVE_X_WINDOWS
368 /* Set the screen dimensions so that it can show no less than
369 ROWS x COLS frame. */
372 dos_set_window_size (rows
, cols
)
376 Lisp_Object video_mode
;
377 int video_mode_value
;
380 int current_rows
= ScreenRows (), current_cols
= ScreenCols ();
382 if (*rows
== current_rows
&& *cols
== current_cols
)
385 /* Do we have a VGA? */
387 int86 (0x10, ®s
, ®s
);
388 if (regs
.h
.al
== 0x1a && regs
.h
.bl
> 5 && regs
.h
.bl
< 13)
393 /* If the user specified a special video mode for these dimensions,
395 sprintf (video_name
, "screen-dimensions-%dx%d", *rows
, *cols
);
396 video_mode
= XSYMBOL (Fintern_soft (build_string (video_name
),
399 if (INTEGERP (video_mode
)
400 && (video_mode_value
= XINT (video_mode
)) > 0)
402 regs
.x
.ax
= video_mode_value
;
403 int86 (0x10, ®s
, ®s
);
406 int86 (0x10, ®s
, ®s
);
410 /* Must hardware-reset the mouse, or else it won't update
411 its notion of screen dimensions for some non-standard
412 video modes. This is *painfully* slow... */
414 int86 (0x33, ®s
, ®s
);
418 /* Find one of the dimensions supported by standard EGA/VGA
419 which gives us at least the required dimensions. */
428 } std_dimension
[] = {
438 while (i
< sizeof (std_dimension
) / sizeof (std_dimension
[0]))
440 if (std_dimension
[i
].need_vga
<= have_vga
441 && std_dimension
[i
].rows
>= *rows
)
443 if (std_dimension
[i
].rows
!= current_rows
444 || *cols
!= current_cols
)
445 _set_screen_lines (std_dimension
[i
].rows
);
452 #else /* not __DJGPP__ > 1 */
454 else if (*rows
<= 25)
456 if (current_rows
!= 25 || current_cols
!= 80)
459 int86 (0x10, ®s
, ®s
);
462 int86 (0x10, ®s
, ®s
);
465 int86 (0x10, ®s
, ®s
);
467 int86 (0x10, ®s
, ®s
);
470 else if (*rows
<= 50)
471 if (have_vga
&& (current_rows
!= 50 || current_cols
!= 80)
472 || *rows
<= 43 && (current_rows
!= 43 || current_cols
!= 80))
475 int86 (0x10, ®s
, ®s
);
478 int86 (0x10, ®s
, ®s
);
481 int86 (0x10, ®s
, ®s
);
484 int86 (0x10, ®s
, ®s
);
486 #endif /* not __DJGPP__ > 1 */
494 /* Tell the caller what dimensions have been REALLY set. */
495 *rows
= ScreenRows ();
496 *cols
= ScreenCols ();
499 /* If we write a character in the position where the mouse is,
500 the mouse cursor may need to be refreshed. */
510 mouse_get_xy (&x
, &y
);
511 if (y
!= new_pos_Y
|| x
< new_pos_X
)
527 union REGS inregs
, outregs
;
530 intdos (&inregs
, &outregs
);
535 IT_set_face (int face
)
538 extern struct face
*intern_face (/* FRAME_PTR, struct face * */);
540 if (face
== 1 || (face
== 0 && highlight
))
541 fp
= FRAME_MODE_LINE_FACE (foo
);
542 else if (face
<= 0 || face
>= FRAME_N_COMPUTED_FACES (foo
))
543 fp
= FRAME_DEFAULT_FACE (foo
);
545 fp
= intern_face (selected_frame
, FRAME_COMPUTED_FACES (foo
)[face
]);
547 fprintf (termscript
, "<FACE:%d:%d>", FACE_FOREGROUND (fp
), FACE_BACKGROUND (fp
));
549 ScreenAttrib
= (FACE_BACKGROUND (fp
) << 4) | FACE_FOREGROUND (fp
);
553 IT_write_glyphs (GLYPH
*str
, int len
)
557 unsigned char *buf
, *bp
;
559 if (len
== 0) return;
561 buf
= bp
= alloca (len
* 2);
565 newface
= FAST_GLYPH_FACE (*str
);
566 if (newface
!= screen_face
)
567 IT_set_face (newface
);
568 ch
= FAST_GLYPH_CHAR (*str
);
569 *bp
++ = (unsigned char)ch
;
570 *bp
++ = ScreenAttrib
;
573 fputc (ch
, termscript
);
578 dosmemput (buf
, 2 * len
,
579 (int)ScreenPrimary
+ 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
));
584 IT_clear_end_of_line (first_unused
)
591 fprintf (termscript
, "<CLR:EOL>");
592 i
= (j
= screen_size_X
- new_pos_X
) * 2;
593 spaces
= sp
= alloca (i
);
598 *sp
++ = ScreenAttrib
;
602 dosmemput (spaces
, i
,
603 (int)ScreenPrimary
+ 2 * (new_pos_X
+ screen_size_X
* new_pos_Y
));
607 IT_clear_screen (void)
610 fprintf (termscript
, "<CLR:SCR>");
614 new_pos_X
= new_pos_Y
= 0;
618 IT_clear_to_end (void)
621 fprintf (termscript
, "<CLR:EOS>");
623 while (new_pos_Y
< screen_size_Y
) {
625 IT_clear_end_of_line (0);
631 IT_cursor_to (int y
, int x
)
634 fprintf (termscript
, "\n<XY=%dx%d>", x
, y
);
640 IT_reassert_line_highlight (new, vpos
)
644 IT_set_face (0); /* To possibly clear the highlighting. */
648 IT_change_line_highlight (new_highlight
, vpos
, first_unused_hpos
)
650 highlight
= new_highlight
;
651 IT_set_face (0); /* To possibly clear the highlighting. */
652 IT_cursor_to (vpos
, 0);
653 IT_clear_end_of_line (first_unused_hpos
);
660 IT_set_face (0); /* To possibly clear the highlighting. */
669 /* This was more or less copied from xterm.c */
672 IT_set_menu_bar_lines (window
, n
)
676 struct window
*w
= XWINDOW (window
);
678 XSETFASTINT (w
->last_modified
, 0);
679 XSETFASTINT (w
->top
, XFASTINT (w
->top
) + n
);
680 XSETFASTINT (w
->height
, XFASTINT (w
->height
) - n
);
682 /* Handle just the top child in a vertical split. */
683 if (!NILP (w
->vchild
))
684 IT_set_menu_bar_lines (w
->vchild
, n
);
686 /* Adjust all children in a horizontal split. */
687 for (window
= w
->hchild
; !NILP (window
); window
= w
->next
)
689 w
= XWINDOW (window
);
690 IT_set_menu_bar_lines (window
, n
);
694 /* IT_set_terminal_modes is called when emacs is started,
695 resumed, and whenever the screen is redrawn! */
698 IT_set_terminal_modes (void)
705 fprintf (termscript
, "\n<SET_TERM>");
708 screen_size_X
= ScreenCols ();
709 screen_size_Y
= ScreenRows ();
710 screen_size
= screen_size_X
* screen_size_Y
;
712 new_pos_X
= new_pos_Y
= 0;
713 current_pos_X
= current_pos_Y
= -1;
719 startup_screen_size_X
= screen_size_X
;
720 startup_screen_size_Y
= screen_size_Y
;
721 startup_screen_attrib
= ScreenAttrib
;
723 ScreenGetCursor (&startup_pos_Y
, &startup_pos_X
);
724 ScreenRetrieve (startup_screen_buffer
= xmalloc (screen_size
* 2));
727 fprintf (termscript
, "<SCREEN SAVED (dimensions=%dx%d)>\n",
728 screen_size_X
, screen_size_Y
);
731 /* IT_reset_terminal_modes is called when emacs is
732 suspended or killed. */
735 IT_reset_terminal_modes (void)
737 int display_row_start
= (int) ScreenPrimary
;
738 int saved_row_len
= startup_screen_size_X
* 2;
739 int update_row_len
= ScreenCols () * 2;
740 int current_rows
= ScreenRows ();
741 int to_next_row
= update_row_len
;
742 unsigned char *saved_row
= startup_screen_buffer
;
743 int cursor_pos_X
= ScreenCols () - 1;
744 int cursor_pos_Y
= ScreenRows () - 1;
747 fprintf (termscript
, "\n<RESET_TERM>");
751 if (!term_setup_done
)
756 /* We have a situation here.
757 We cannot just do ScreenUpdate(startup_screen_buffer) because
758 the luser could have changed screen dimensions inside Emacs
759 and failed (or didn't want) to restore them before killing
760 Emacs. ScreenUpdate() uses the *current* screen dimensions and
761 thus will happily use memory outside what was allocated for
762 `startup_screen_buffer'.
763 Thus we only restore as much as the current screen dimensions
764 can hold, and clear the rest (if the saved screen is smaller than
765 the current) with the color attribute saved at startup. The cursor
766 is also restored within the visible dimensions. */
768 ScreenAttrib
= startup_screen_attrib
;
771 if (update_row_len
> saved_row_len
)
772 update_row_len
= saved_row_len
;
773 if (current_rows
> startup_screen_size_Y
)
774 current_rows
= startup_screen_size_Y
;
777 fprintf (termscript
, "<SCREEN RESTORED (dimensions=%dx%d)>\n",
778 update_row_len
/ 2, current_rows
);
780 while (current_rows
--)
782 dosmemput (saved_row
, update_row_len
, display_row_start
);
783 saved_row
+= saved_row_len
;
784 display_row_start
+= to_next_row
;
786 if (startup_pos_X
< cursor_pos_X
)
787 cursor_pos_X
= startup_pos_X
;
788 if (startup_pos_Y
< cursor_pos_Y
)
789 cursor_pos_Y
= startup_pos_Y
;
791 ScreenSetCursor (cursor_pos_Y
, cursor_pos_X
);
792 xfree (startup_screen_buffer
);
798 IT_set_terminal_window (void)
803 IT_set_frame_parameters (frame
, alist
)
809 extern unsigned long load_color ();
810 FRAME_PTR f
= (FRAME_PTR
) &the_only_frame
;
813 for (tail
= alist
; CONSP (tail
); tail
= Fcdr (tail
))
815 Lisp_Object elt
, prop
, val
;
820 CHECK_SYMBOL (prop
, 1);
822 if (EQ (prop
, intern ("foreground-color")))
824 unsigned long new_color
= load_color (f
, val
);
827 FRAME_FOREGROUND_PIXEL (f
) = new_color
;
831 else if (EQ (prop
, intern ("background-color")))
833 unsigned long new_color
= load_color (f
, val
);
836 FRAME_BACKGROUND_PIXEL (f
) = new_color
& ~8;
840 else if (EQ (prop
, intern ("menu-bar-lines")))
843 int old
= FRAME_MENU_BAR_LINES (the_only_frame
);
849 FRAME_MENU_BAR_LINES (f
) = new;
850 IT_set_menu_bar_lines (the_only_frame
.root_window
, new - old
);
856 recompute_basic_faces (f
);
857 Fredraw_frame (Fselected_frame ());
861 #endif /* !HAVE_X_WINDOWS */
864 /* Do we need the internal terminal? */
867 internal_terminal_init ()
869 char *term
= getenv ("TERM");
872 #ifdef HAVE_X_WINDOWS
873 if (!inhibit_window_system
)
878 = (!noninteractive
) && term
&& !strcmp (term
, "internal");
880 if (getenv ("EMACSTEST"))
881 termscript
= fopen (getenv ("EMACSTEST"), "wt");
883 #ifndef HAVE_X_WINDOWS
884 if (!internal_terminal
|| inhibit_window_system
)
886 the_only_frame
.output_method
= output_termcap
;
890 Vwindow_system
= intern ("pc");
891 Vwindow_system_version
= make_number (1);
893 bzero (&the_only_x_display
, sizeof the_only_x_display
);
894 the_only_x_display
.background_pixel
= 7; /* White */
895 the_only_x_display
.foreground_pixel
= 0; /* Black */
896 colors
= getenv ("EMACSCOLORS");
897 if (colors
&& strlen (colors
) >= 2)
899 /* Foreground colrs use 4 bits, background only 3. */
900 if (isxdigit (colors
[0]) && !isdigit (colors
[0]))
901 colors
[0] += 10 - (isupper (colors
[0]) ? 'A' : 'a');
902 if (colors
[0] >= 0 && colors
[0] < 16)
903 the_only_x_display
.foreground_pixel
= colors
[0];
904 if (colors
[1] >= 0 && colors
[1] < 8)
905 the_only_x_display
.background_pixel
= colors
[1];
907 the_only_x_display
.line_height
= 1;
908 the_only_frame
.output_data
.x
= &the_only_x_display
;
909 the_only_frame
.output_method
= output_msdos_raw
;
910 the_only_x_display
.font
= (XFontStruct
*)1; /* must *not* be zero */
912 init_frame_faces ((FRAME_PTR
) &the_only_frame
);
914 ring_bell_hook
= IT_ring_bell
;
915 write_glyphs_hook
= IT_write_glyphs
;
916 cursor_to_hook
= raw_cursor_to_hook
= IT_cursor_to
;
917 clear_to_end_hook
= IT_clear_to_end
;
918 clear_end_of_line_hook
= IT_clear_end_of_line
;
919 clear_frame_hook
= IT_clear_screen
;
920 change_line_highlight_hook
= IT_change_line_highlight
;
921 update_begin_hook
= IT_update_begin
;
922 update_end_hook
= IT_update_end
;
923 reassert_line_highlight_hook
= IT_reassert_line_highlight
;
925 /* These hooks are called by term.c without being checked. */
926 set_terminal_modes_hook
= IT_set_terminal_modes
;
927 reset_terminal_modes_hook
= IT_reset_terminal_modes
;
928 set_terminal_window_hook
= IT_set_terminal_window
;
932 dos_get_saved_screen (screen
, rows
, cols
)
937 #ifndef HAVE_X_WINDOWS
938 *screen
= startup_screen_buffer
;
939 *cols
= startup_screen_size_X
;
940 *rows
= startup_screen_size_Y
;
947 /* ----------------------- Keyboard control ----------------------
949 * Keymaps reflect the following keyboard layout:
951 * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
952 * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
953 * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
954 * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
958 static int extended_kbd
; /* 101 (102) keyboard present. */
960 struct dos_keyboard_map
968 static struct dos_keyboard_map us_keyboard
= {
970 /* 01234567890123456789012345678901234567890 12345678901234 */
971 "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
972 /* 0123456789012345678901234567890123456789 012345678901234 */
973 "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
974 0 /* no Alt-Gr key */
977 static struct dos_keyboard_map fr_keyboard
= {
979 /* 012 3456789012345678901234567890123456789012345678901234 */
980 "ý&\82\",(-\8a_\80\85)= azertyuiop^$ qsdfghjklm\97* wxcvbnm;:! ",
981 /* 0123456789012345678901234567890123456789012345678901234 */
982 " 1234567890ø+ AZERTYUIOPù\9c QSDFGHJKLM%æ WXCVBN?./õ ",
983 /* 01234567 89012345678901234567890123456789012345678901234 */
987 static struct dos_keyboard_map dk_keyboard
= {
989 /* 0123456789012345678901234567890123456789012345678901234 */
990 "«1234567890+| qwertyuiop\86~ asdfghjkl\91\9b' zxcvbnm,.- ",
991 /* 01 23456789012345678901234567890123456789012345678901234 */
992 "õ!\"#$%&/()=?` QWERTYUIOP\8f^ ASDFGHJKL\92\9d* ZXCVBNM;:_ ",
993 /* 0123456789012345678901234567890123456789012345678901234 */
997 static struct keyboard_layout_list
1000 struct dos_keyboard_map
*keyboard_map
;
1001 } keyboard_layout_list
[] =
1008 static struct dos_keyboard_map
*keyboard
;
1009 static int keyboard_map_all
;
1012 dos_set_keyboard (code
, always
)
1018 /* Initialize to US settings, for countries that don't have their own. */
1019 keyboard
= keyboard_layout_list
[0].keyboard_map
;
1020 keyboard_map_all
= always
;
1021 dos_keyboard_layout
= 1;
1023 for (i
= 0; i
< (sizeof (keyboard_layout_list
)/sizeof (struct keyboard_layout_list
)); i
++)
1024 if (code
== keyboard_layout_list
[i
].country_code
)
1026 keyboard
= keyboard_layout_list
[i
].keyboard_map
;
1027 keyboard_map_all
= always
;
1028 dos_keyboard_layout
= code
;
1034 #define Ignore 0x0000
1035 #define Normal 0x0000 /* normal key - alt changes scan-code */
1036 #define FctKey 0x1000 /* func key if c == 0, else c */
1037 #define Special 0x2000 /* func key even if c != 0 */
1038 #define ModFct 0x3000 /* special if mod-keys, else 'c' */
1039 #define Map 0x4000 /* alt scan-code, map to unshift/shift key */
1040 #define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
1041 #define Grey 0x6000 /* Grey keypad key */
1043 #define Alt 0x0100 /* alt scan-code */
1044 #define Ctrl 0x0200 /* ctrl scan-code */
1045 #define Shift 0x0400 /* shift scan-code */
1049 unsigned char char_code
; /* normal code */
1050 unsigned char meta_code
; /* M- code */
1051 unsigned char keypad_code
; /* keypad code */
1052 unsigned char editkey_code
; /* edit key */
1053 } keypad_translate_map
[] = {
1054 '0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
1055 '1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
1056 '2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
1057 '3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
1058 '4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
1059 '5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
1060 '6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
1061 '7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
1062 '8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
1063 '9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
1064 '.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
1069 unsigned char char_code
; /* normal code */
1070 unsigned char keypad_code
; /* keypad code */
1071 } grey_key_translate_map
[] = {
1072 '/', 0xaf, /* kp-decimal */
1073 '*', 0xaa, /* kp-multiply */
1074 '-', 0xad, /* kp-subtract */
1075 '+', 0xab, /* kp-add */
1076 '\r', 0x8d /* kp-enter */
1079 static unsigned short
1080 ibmpc_translate_map
[] =
1082 /* --------------- 00 to 0f --------------- */
1083 Normal
| 0xff, /* Ctrl Break + Alt-NNN */
1084 Alt
| ModFct
| 0x1b, /* Escape */
1085 Normal
| 1, /* '1' */
1086 Normal
| 2, /* '2' */
1087 Normal
| 3, /* '3' */
1088 Normal
| 4, /* '4' */
1089 Normal
| 5, /* '5' */
1090 Normal
| 6, /* '6' */
1091 Normal
| 7, /* '7' */
1092 Normal
| 8, /* '8' */
1093 Normal
| 9, /* '9' */
1094 Normal
| 10, /* '0' */
1095 Normal
| 11, /* '-' */
1096 Normal
| 12, /* '=' */
1097 Special
| 0x08, /* Backspace */
1098 ModFct
| 0x74, /* Tab/Backtab */
1100 /* --------------- 10 to 1f --------------- */
1113 ModFct
| 0x0d, /* Return */
1118 /* --------------- 20 to 2f --------------- */
1127 Map
| 40, /* '\'' */
1129 Ignore
, /* Left shift */
1130 Map
| 41, /* '\\' */
1136 /* --------------- 30 to 3f --------------- */
1143 Ignore
, /* Right shift */
1144 Grey
| 1, /* Grey * */
1146 Normal
| ' ', /* ' ' */
1147 Ignore
, /* Caps Lock */
1148 FctKey
| 0xbe, /* F1 */
1149 FctKey
| 0xbf, /* F2 */
1150 FctKey
| 0xc0, /* F3 */
1151 FctKey
| 0xc1, /* F4 */
1152 FctKey
| 0xc2, /* F5 */
1154 /* --------------- 40 to 4f --------------- */
1155 FctKey
| 0xc3, /* F6 */
1156 FctKey
| 0xc4, /* F7 */
1157 FctKey
| 0xc5, /* F8 */
1158 FctKey
| 0xc6, /* F9 */
1159 FctKey
| 0xc7, /* F10 */
1160 Ignore
, /* Num Lock */
1161 Ignore
, /* Scroll Lock */
1162 KeyPad
| 7, /* Home */
1163 KeyPad
| 8, /* Up */
1164 KeyPad
| 9, /* Page Up */
1165 Grey
| 2, /* Grey - */
1166 KeyPad
| 4, /* Left */
1167 KeyPad
| 5, /* Keypad 5 */
1168 KeyPad
| 6, /* Right */
1169 Grey
| 3, /* Grey + */
1170 KeyPad
| 1, /* End */
1172 /* --------------- 50 to 5f --------------- */
1173 KeyPad
| 2, /* Down */
1174 KeyPad
| 3, /* Page Down */
1175 KeyPad
| 0, /* Insert */
1176 KeyPad
| 10, /* Delete */
1177 Shift
| FctKey
| 0xbe, /* (Shift) F1 */
1178 Shift
| FctKey
| 0xbf, /* (Shift) F2 */
1179 Shift
| FctKey
| 0xc0, /* (Shift) F3 */
1180 Shift
| FctKey
| 0xc1, /* (Shift) F4 */
1181 Shift
| FctKey
| 0xc2, /* (Shift) F5 */
1182 Shift
| FctKey
| 0xc3, /* (Shift) F6 */
1183 Shift
| FctKey
| 0xc4, /* (Shift) F7 */
1184 Shift
| FctKey
| 0xc5, /* (Shift) F8 */
1185 Shift
| FctKey
| 0xc6, /* (Shift) F9 */
1186 Shift
| FctKey
| 0xc7, /* (Shift) F10 */
1187 Ctrl
| FctKey
| 0xbe, /* (Ctrl) F1 */
1188 Ctrl
| FctKey
| 0xbf, /* (Ctrl) F2 */
1190 /* --------------- 60 to 6f --------------- */
1191 Ctrl
| FctKey
| 0xc0, /* (Ctrl) F3 */
1192 Ctrl
| FctKey
| 0xc1, /* (Ctrl) F4 */
1193 Ctrl
| FctKey
| 0xc2, /* (Ctrl) F5 */
1194 Ctrl
| FctKey
| 0xc3, /* (Ctrl) F6 */
1195 Ctrl
| FctKey
| 0xc4, /* (Ctrl) F7 */
1196 Ctrl
| FctKey
| 0xc5, /* (Ctrl) F8 */
1197 Ctrl
| FctKey
| 0xc6, /* (Ctrl) F9 */
1198 Ctrl
| FctKey
| 0xc7, /* (Ctrl) F10 */
1199 Alt
| FctKey
| 0xbe, /* (Alt) F1 */
1200 Alt
| FctKey
| 0xbf, /* (Alt) F2 */
1201 Alt
| FctKey
| 0xc0, /* (Alt) F3 */
1202 Alt
| FctKey
| 0xc1, /* (Alt) F4 */
1203 Alt
| FctKey
| 0xc2, /* (Alt) F5 */
1204 Alt
| FctKey
| 0xc3, /* (Alt) F6 */
1205 Alt
| FctKey
| 0xc4, /* (Alt) F7 */
1206 Alt
| FctKey
| 0xc5, /* (Alt) F8 */
1208 /* --------------- 70 to 7f --------------- */
1209 Alt
| FctKey
| 0xc6, /* (Alt) F9 */
1210 Alt
| FctKey
| 0xc7, /* (Alt) F10 */
1211 Ctrl
| FctKey
| 0x6d, /* (Ctrl) Sys Rq */
1212 Ctrl
| KeyPad
| 4, /* (Ctrl) Left */
1213 Ctrl
| KeyPad
| 6, /* (Ctrl) Right */
1214 Ctrl
| KeyPad
| 1, /* (Ctrl) End */
1215 Ctrl
| KeyPad
| 3, /* (Ctrl) Page Down */
1216 Ctrl
| KeyPad
| 7, /* (Ctrl) Home */
1217 Alt
| Map
| 1, /* '1' */
1218 Alt
| Map
| 2, /* '2' */
1219 Alt
| Map
| 3, /* '3' */
1220 Alt
| Map
| 4, /* '4' */
1221 Alt
| Map
| 5, /* '5' */
1222 Alt
| Map
| 6, /* '6' */
1223 Alt
| Map
| 7, /* '7' */
1224 Alt
| Map
| 8, /* '8' */
1226 /* --------------- 80 to 8f --------------- */
1227 Alt
| Map
| 9, /* '9' */
1228 Alt
| Map
| 10, /* '0' */
1229 Alt
| Map
| 11, /* '-' */
1230 Alt
| Map
| 12, /* '=' */
1231 Ctrl
| KeyPad
| 9, /* (Ctrl) Page Up */
1232 FctKey
| 0xc8, /* F11 */
1233 FctKey
| 0xc9, /* F12 */
1234 Shift
| FctKey
| 0xc8, /* (Shift) F11 */
1235 Shift
| FctKey
| 0xc9, /* (Shift) F12 */
1236 Ctrl
| FctKey
| 0xc8, /* (Ctrl) F11 */
1237 Ctrl
| FctKey
| 0xc9, /* (Ctrl) F12 */
1238 Alt
| FctKey
| 0xc8, /* (Alt) F11 */
1239 Alt
| FctKey
| 0xc9, /* (Alt) F12 */
1240 Ctrl
| KeyPad
| 8, /* (Ctrl) Up */
1241 Ctrl
| Grey
| 2, /* (Ctrl) Grey - */
1242 Ctrl
| KeyPad
| 5, /* (Ctrl) Keypad 5 */
1244 /* --------------- 90 to 9f --------------- */
1245 Ctrl
| Grey
| 3, /* (Ctrl) Grey + */
1246 Ctrl
| KeyPad
| 2, /* (Ctrl) Down */
1247 Ctrl
| KeyPad
| 0, /* (Ctrl) Insert */
1248 Ctrl
| KeyPad
| 10, /* (Ctrl) Delete */
1249 Ctrl
| FctKey
| 0x09, /* (Ctrl) Tab */
1250 Ctrl
| Grey
| 0, /* (Ctrl) Grey / */
1251 Ctrl
| Grey
| 1, /* (Ctrl) Grey * */
1252 Alt
| FctKey
| 0x50, /* (Alt) Home */
1253 Alt
| FctKey
| 0x52, /* (Alt) Up */
1254 Alt
| FctKey
| 0x55, /* (Alt) Page Up */
1255 Ignore
, /* NO KEY */
1256 Alt
| FctKey
| 0x51, /* (Alt) Left */
1257 Ignore
, /* NO KEY */
1258 Alt
| FctKey
| 0x53, /* (Alt) Right */
1259 Ignore
, /* NO KEY */
1260 Alt
| FctKey
| 0x57, /* (Alt) End */
1262 /* --------------- a0 to af --------------- */
1263 Alt
| KeyPad
| 2, /* (Alt) Down */
1264 Alt
| KeyPad
| 3, /* (Alt) Page Down */
1265 Alt
| KeyPad
| 0, /* (Alt) Insert */
1266 Alt
| KeyPad
| 10, /* (Alt) Delete */
1267 Alt
| Grey
| 0, /* (Alt) Grey / */
1268 Alt
| FctKey
| 0x09, /* (Alt) Tab */
1269 Alt
| Grey
| 4 /* (Alt) Keypad Enter */
1272 /* These bit-positions corresponds to values returned by BIOS */
1273 #define SHIFT_P 0x0003 /* two bits! */
1274 #define CTRL_P 0x0004
1275 #define ALT_P 0x0008
1276 #define SCRLOCK_P 0x0010
1277 #define NUMLOCK_P 0x0020
1278 #define CAPSLOCK_P 0x0040
1279 #define ALT_GR_P 0x0800
1280 #define SUPER_P 0x4000 /* pseudo */
1281 #define HYPER_P 0x8000 /* pseudo */
1284 dos_get_modifiers (keymask
)
1291 /* Calculate modifier bits */
1292 regs
.h
.ah
= extended_kbd
? 0x12 : 0x02;
1293 int86 (0x16, ®s
, ®s
);
1297 mask
= regs
.h
.al
& (SHIFT_P
| CTRL_P
| ALT_P
|
1298 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
1302 mask
= regs
.h
.al
& (SHIFT_P
|
1303 SCRLOCK_P
| NUMLOCK_P
| CAPSLOCK_P
);
1305 /* Do not break international keyboard support. */
1306 /* When Keyb.Com is loaded, the right Alt key is */
1307 /* used for accessing characters like { and } */
1308 if (regs
.h
.ah
& 2) /* Left ALT pressed ? */
1311 if ((regs
.h
.ah
& 8) != 0) /* Right ALT pressed ? */
1314 if (dos_hyper_key
== 1)
1317 modifiers
|= hyper_modifier
;
1319 else if (dos_super_key
== 1)
1322 modifiers
|= super_modifier
;
1326 if (regs
.h
.ah
& 1) /* Left CTRL pressed ? */
1329 if (regs
.h
.ah
& 4) /* Right CTRL pressed ? */
1331 if (dos_hyper_key
== 2)
1334 modifiers
|= hyper_modifier
;
1336 else if (dos_super_key
== 2)
1339 modifiers
|= super_modifier
;
1347 modifiers
|= shift_modifier
;
1349 modifiers
|= ctrl_modifier
;
1351 modifiers
|= meta_modifier
;
1358 #define NUM_RECENT_DOSKEYS (100)
1359 int recent_doskeys_index
; /* Index for storing next element into recent_doskeys */
1360 int total_doskeys
; /* Total number of elements stored into recent_doskeys */
1361 Lisp_Object recent_doskeys
; /* A vector, holding the last 100 keystrokes */
1363 DEFUN ("recent-doskeys", Frecent_doskeys
, Srecent_doskeys
, 0, 0, 0,
1364 "Return vector of last 100 keyboard input values seen in dos_rawgetc.\n\
1365 Each input key receives two values in this vector: first the ASCII code,\n\
1366 and then the scan code.")
1369 Lisp_Object
*keys
= XVECTOR (recent_doskeys
)->contents
;
1372 if (total_doskeys
< NUM_RECENT_DOSKEYS
)
1373 return Fvector (total_doskeys
, keys
);
1376 val
= Fvector (NUM_RECENT_DOSKEYS
, keys
);
1377 bcopy (keys
+ recent_doskeys_index
,
1378 XVECTOR (val
)->contents
,
1379 (NUM_RECENT_DOSKEYS
- recent_doskeys_index
) * sizeof (Lisp_Object
));
1381 XVECTOR (val
)->contents
+ NUM_RECENT_DOSKEYS
- recent_doskeys_index
,
1382 recent_doskeys_index
* sizeof (Lisp_Object
));
1387 /* Get a char from keyboard. Function keys are put into the event queue. */
1392 struct input_event event
;
1395 #ifndef HAVE_X_WINDOWS
1396 SCREEN_SET_CURSOR ();
1397 if (!mouse_visible
) mouse_on ();
1400 /* The following condition is equivalent to `kbhit ()', except that
1401 it uses the bios to do its job. This pleases DESQview/X. */
1402 while ((regs
.h
.ah
= extended_kbd
? 0x11 : 0x01),
1403 int86 (0x16, ®s
, ®s
),
1404 (regs
.x
.flags
& 0x40) == 0)
1407 register unsigned char c
;
1408 int sc
, code
, mask
, kp_mode
;
1411 regs
.h
.ah
= extended_kbd
? 0x10 : 0x00;
1412 int86 (0x16, ®s
, ®s
);
1417 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
1419 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
1420 recent_doskeys_index
= 0;
1421 XVECTOR (recent_doskeys
)->contents
[recent_doskeys_index
++]
1423 if (recent_doskeys_index
== NUM_RECENT_DOSKEYS
)
1424 recent_doskeys_index
= 0;
1426 modifiers
= dos_get_modifiers (&mask
);
1428 #ifndef HAVE_X_WINDOWS
1429 if (!NILP (Vdos_display_scancodes
))
1432 sprintf (buf
, "%02x:%02x*%04x",
1433 (unsigned) (sc
&0xff), (unsigned) c
, mask
);
1434 dos_direct_output (screen_size_Y
- 2, screen_size_X
- 12, buf
, 10);
1442 case 10: /* Ctrl Grey Enter */
1443 code
= Ctrl
| Grey
| 4;
1445 case 13: /* Grey Enter */
1448 case '/': /* Grey / */
1458 if (sc
>= (sizeof (ibmpc_translate_map
) / sizeof (short)))
1460 if ((code
= ibmpc_translate_map
[sc
]) == Ignore
)
1467 modifiers
|= meta_modifier
;
1469 modifiers
|= ctrl_modifier
;
1471 modifiers
|= shift_modifier
;
1474 switch (code
& 0xf000)
1477 if (c
&& !(mask
& (SHIFT_P
| ALT_P
| CTRL_P
| HYPER_P
| SUPER_P
)))
1479 c
= 0; /* Special */
1492 if (c
== 0) /* ctrl-break */
1494 return c
; /* ALT-nnn */
1496 if (!keyboard_map_all
)
1505 if (c
&& !(mask
& ALT_P
) && !((mask
& SHIFT_P
) && (mask
& CTRL_P
)))
1506 if (!keyboard_map_all
)
1510 if (mask
& ALT_P
&& code
<= 10 && code
> 0 && dos_keypad_mode
& 0x200)
1511 mask
|= SHIFT_P
; /* ALT-1 => M-! etc. */
1515 code
= keyboard
->shifted
[code
];
1517 modifiers
&= ~shift_modifier
;
1520 if ((mask
& ALT_GR_P
) && keyboard
->alt_gr
&& keyboard
->alt_gr
[code
] != ' ')
1521 code
= keyboard
->alt_gr
[code
];
1523 code
= keyboard
->unshifted
[code
];
1528 if (c
== 0xe0) /* edit key */
1531 if ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) /* numlock on */
1532 kp_mode
= dos_keypad_mode
& 0x03;
1534 kp_mode
= (dos_keypad_mode
>> 4) & 0x03;
1539 if (code
== 10 && dos_decimal_point
)
1540 return dos_decimal_point
;
1541 return keypad_translate_map
[code
].char_code
;
1544 code
= 0xff00 | keypad_translate_map
[code
].keypad_code
;
1548 code
= keypad_translate_map
[code
].meta_code
;
1549 modifiers
= meta_modifier
;
1553 code
= 0xff00 | keypad_translate_map
[code
].editkey_code
;
1560 kp_mode
= ((mask
& (NUMLOCK_P
|CTRL_P
|SHIFT_P
|ALT_P
)) == NUMLOCK_P
) ? 0x04 : 0x40;
1561 if (dos_keypad_mode
& kp_mode
)
1562 code
= 0xff00 | grey_key_translate_map
[code
].keypad_code
;
1564 code
= grey_key_translate_map
[code
].char_code
;
1573 event
.kind
= non_ascii_keystroke
;
1575 event
.kind
= ascii_keystroke
;
1577 event
.modifiers
= modifiers
;
1578 XSETFRAME (event
.frame_or_window
, selected_frame
);
1579 event
.timestamp
= event_timestamp ();
1580 kbd_buffer_store_event (&event
);
1585 int but
, press
, x
, y
, ok
;
1587 /* Check for mouse movement *before* buttons. */
1588 mouse_check_moved ();
1590 for (but
= 0; but
< NUM_MOUSE_BUTTONS
; but
++)
1591 for (press
= 0; press
< 2; press
++)
1593 int button_num
= but
;
1596 ok
= mouse_pressed (but
, &x
, &y
);
1598 ok
= mouse_released (but
, &x
, &y
);
1601 /* Allow a simultaneous press/release of Mouse-1 and
1602 Mouse-2 to simulate Mouse-3 on two-button mice. */
1603 if (mouse_button_count
== 2 && but
< 2)
1605 int x2
, y2
; /* don't clobber original coordinates */
1607 /* If only one button is pressed, wait 100 msec and
1608 check again. This way, Speedy Gonzales isn't
1609 punished, while the slow get their chance. */
1610 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
1611 || !press
&& mouse_released (1-but
, &x2
, &y2
))
1616 if (press
&& mouse_pressed (1-but
, &x2
, &y2
)
1617 || !press
&& mouse_released (1-but
, &x2
, &y2
))
1622 event
.kind
= mouse_click
;
1623 event
.code
= button_num
;
1624 event
.modifiers
= dos_get_modifiers (0)
1625 | (press
? down_modifier
: up_modifier
);
1628 XSETFRAME (event
.frame_or_window
, selected_frame
);
1629 event
.timestamp
= event_timestamp ();
1630 kbd_buffer_store_event (&event
);
1638 static int prev_get_char
= -1;
1640 /* Return 1 if a key is ready to be read without suspending execution. */
1644 if (prev_get_char
!= -1)
1647 return ((prev_get_char
= dos_rawgetc ()) != -1);
1650 /* Read a key. Return -1 if no key is ready. */
1654 if (prev_get_char
!= -1)
1656 int c
= prev_get_char
;
1661 return dos_rawgetc ();
1664 #ifndef HAVE_X_WINDOWS
1665 /* See xterm.c for more info. */
1667 pixel_to_glyph_coords (f
, pix_x
, pix_y
, x
, y
, bounds
, noclip
)
1669 register int pix_x
, pix_y
;
1670 register int *x
, *y
;
1671 void /* XRectangle */ *bounds
;
1674 if (bounds
) abort ();
1676 /* Ignore clipping. */
1683 glyph_to_pixel_coords (f
, x
, y
, pix_x
, pix_y
)
1686 register int *pix_x
, *pix_y
;
1692 /* Simulation of X's menus. Nothing too fancy here -- just make it work
1695 Actually, I don't know the meaning of all the parameters of the functions
1696 here -- I only know how they are called by xmenu.c. I could of course
1697 grab the nearest Xlib manual (down the hall, second-to-last door on the
1698 left), but I don't think it's worth the effort. */
1705 menu
= (XMenu
*) xmalloc (sizeof (XMenu
));
1706 menu
->allocated
= menu
->count
= menu
->panecount
= menu
->width
= 0;
1710 /* Allocate some (more) memory for MENU ensuring that there is room for one
1714 IT_menu_make_room (XMenu
*menu
)
1716 if (menu
->allocated
== 0)
1718 int count
= menu
->allocated
= 10;
1719 menu
->text
= (char **) xmalloc (count
* sizeof (char *));
1720 menu
->submenu
= (XMenu
**) xmalloc (count
* sizeof (XMenu
*));
1721 menu
->panenumber
= (int *) xmalloc (count
* sizeof (int));
1723 else if (menu
->allocated
== menu
->count
)
1725 int count
= menu
->allocated
= menu
->allocated
+ 10;
1727 = (char **) xrealloc (menu
->text
, count
* sizeof (char *));
1729 = (XMenu
**) xrealloc (menu
->submenu
, count
* sizeof (XMenu
*));
1731 = (int *) xrealloc (menu
->panenumber
, count
* sizeof (int));
1735 /* Search the given menu structure for a given pane number. */
1738 IT_menu_search_pane (XMenu
*menu
, int pane
)
1743 for (i
= 0; i
< menu
->count
; i
++)
1744 if (menu
->submenu
[i
])
1746 if (pane
== menu
->panenumber
[i
])
1747 return menu
->submenu
[i
];
1748 if ((try = IT_menu_search_pane (menu
->submenu
[i
], pane
)))
1754 /* Determine how much screen space a given menu needs. */
1757 IT_menu_calc_size (XMenu
*menu
, int *width
, int *height
)
1759 int i
, h2
, w2
, maxsubwidth
, maxheight
;
1762 maxheight
= menu
->count
;
1763 for (i
= 0; i
< menu
->count
; i
++)
1765 if (menu
->submenu
[i
])
1767 IT_menu_calc_size (menu
->submenu
[i
], &w2
, &h2
);
1768 if (w2
> maxsubwidth
) maxsubwidth
= w2
;
1769 if (i
+ h2
> maxheight
) maxheight
= i
+ h2
;
1772 *width
= menu
->width
+ maxsubwidth
;
1773 *height
= maxheight
;
1776 /* Display MENU at (X,Y) using FACES. */
1779 IT_menu_display (XMenu
*menu
, int y
, int x
, int *faces
)
1781 int i
, j
, face
, width
;
1785 int enabled
, mousehere
;
1788 width
= menu
->width
;
1789 text
= (GLYPH
*) xmalloc ((width
+ 2) * sizeof (GLYPH
));
1790 ScreenGetCursor (&row
, &col
);
1791 mouse_get_xy (&mx
, &my
);
1793 for (i
= 0; i
< menu
->count
; i
++)
1795 IT_cursor_to (y
+ i
, x
);
1797 = (!menu
->submenu
[i
] && menu
->panenumber
[i
]) || (menu
->submenu
[i
]);
1798 mousehere
= (y
+ i
== my
&& x
<= mx
&& mx
< x
+ width
+ 2);
1799 face
= faces
[enabled
+ mousehere
* 2];
1801 *p
++ = FAST_MAKE_GLYPH (' ', face
);
1802 for (j
= 0, q
= menu
->text
[i
]; *q
; j
++)
1803 *p
++ = FAST_MAKE_GLYPH (*q
++, face
);
1804 for (; j
< width
; j
++)
1805 *p
++ = FAST_MAKE_GLYPH (' ', face
);
1806 *p
++ = FAST_MAKE_GLYPH (menu
->submenu
[i
] ? 16 : ' ', face
);
1807 IT_write_glyphs (text
, width
+ 2);
1810 IT_cursor_to (row
, col
);
1814 /* --------------------------- X Menu emulation ---------------------- */
1816 /* Report availability of menus. */
1824 /* Create a brand new menu structure. */
1827 XMenuCreate (Display
*foo1
, Window foo2
, char *foo3
)
1829 return IT_menu_create ();
1832 /* Create a new pane and place it on the outer-most level. It is not
1833 clear that it should be placed out there, but I don't know what else
1837 XMenuAddPane (Display
*foo
, XMenu
*menu
, char *txt
, int enable
)
1844 IT_menu_make_room (menu
);
1845 menu
->submenu
[menu
->count
] = IT_menu_create ();
1846 menu
->text
[menu
->count
] = txt
;
1847 menu
->panenumber
[menu
->count
] = ++menu
->panecount
;
1849 if ((len
= strlen (txt
)) > menu
->width
)
1851 return menu
->panecount
;
1854 /* Create a new item in a menu pane. */
1857 XMenuAddSelection (Display
*bar
, XMenu
*menu
, int pane
,
1858 int foo
, char *txt
, int enable
)
1863 if (!(menu
= IT_menu_search_pane (menu
, pane
)))
1865 IT_menu_make_room (menu
);
1866 menu
->submenu
[menu
->count
] = (XMenu
*) 0;
1867 menu
->text
[menu
->count
] = txt
;
1868 menu
->panenumber
[menu
->count
] = enable
;
1870 if ((len
= strlen (txt
)) > menu
->width
)
1875 /* Decide where the menu would be placed if requested at (X,Y). */
1878 XMenuLocate (Display
*foo0
, XMenu
*menu
, int foo1
, int foo2
, int x
, int y
,
1879 int *ulx
, int *uly
, int *width
, int *height
)
1881 IT_menu_calc_size (menu
, width
, height
);
1887 struct IT_menu_state
1889 void *screen_behind
;
1896 /* Display menu, wait for user's response, and return that response. */
1899 XMenuActivate (Display
*foo
, XMenu
*menu
, int *pane
, int *selidx
,
1900 int x0
, int y0
, unsigned ButtonMask
, char **txt
)
1902 struct IT_menu_state
*state
;
1906 int faces
[4], selectface
;
1907 int leave
, result
, onepane
;
1908 int title_faces
[4]; /* face to display the menu title */
1910 /* Just in case we got here without a mouse present... */
1911 if (have_mouse
<= 0)
1912 return XM_IA_SELECT
;
1914 state
= alloca (menu
->panecount
* sizeof (struct IT_menu_state
));
1915 screensize
= screen_size
* 2;
1917 = compute_glyph_face (&the_only_frame
,
1920 intern ("msdos-menu-passive-face")),
1923 = compute_glyph_face (&the_only_frame
,
1926 intern ("msdos-menu-active-face")),
1929 = face_name_id_number (&the_only_frame
, intern ("msdos-menu-select-face"));
1930 faces
[2] = compute_glyph_face (&the_only_frame
, selectface
, faces
[0]);
1931 faces
[3] = compute_glyph_face (&the_only_frame
, selectface
, faces
[1]);
1933 /* Make sure the menu title is always displayed with
1934 `msdos-menu-active-face', no matter where the mouse pointer is. */
1935 for (i
= 0; i
< 4; i
++)
1936 title_faces
[i
] = faces
[3];
1939 state
[0].menu
= menu
;
1941 ScreenRetrieve (state
[0].screen_behind
= xmalloc (screensize
));
1943 IT_menu_display (menu
, y0
- 1, x0
- 1, title_faces
); /* display menu title */
1944 if ((onepane
= menu
->count
== 1 && menu
->submenu
[0]))
1946 menu
->width
= menu
->submenu
[0]->width
;
1947 state
[0].menu
= menu
->submenu
[0];
1951 state
[0].menu
= menu
;
1953 state
[0].x
= x0
- 1;
1955 state
[0].pane
= onepane
;
1957 mouse_last_x
= -1; /* A hack that forces display. */
1961 if (!mouse_visible
) mouse_on ();
1962 mouse_check_moved ();
1963 if (selected_frame
->mouse_moved
)
1965 selected_frame
->mouse_moved
= 0;
1966 result
= XM_IA_SELECT
;
1967 mouse_get_xy (&x
, &y
);
1968 for (i
= 0; i
< statecount
; i
++)
1969 if (state
[i
].x
<= x
&& x
< state
[i
].x
+ state
[i
].menu
->width
+ 2)
1971 int dy
= y
- state
[i
].y
;
1972 if (0 <= dy
&& dy
< state
[i
].menu
->count
)
1974 if (!state
[i
].menu
->submenu
[dy
])
1975 if (state
[i
].menu
->panenumber
[dy
])
1976 result
= XM_SUCCESS
;
1978 result
= XM_IA_SELECT
;
1979 *pane
= state
[i
].pane
- 1;
1981 /* We hit some part of a menu, so drop extra menus that
1982 have been opened. That does not include an open and
1984 if (i
!= statecount
- 2
1985 || state
[i
].menu
->submenu
[dy
] != state
[i
+1].menu
)
1986 while (i
!= statecount
- 1)
1990 ScreenUpdate (state
[statecount
].screen_behind
);
1991 xfree (state
[statecount
].screen_behind
);
1993 if (i
== statecount
- 1 && state
[i
].menu
->submenu
[dy
])
1995 IT_menu_display (state
[i
].menu
,
1999 state
[statecount
].menu
= state
[i
].menu
->submenu
[dy
];
2000 state
[statecount
].pane
= state
[i
].menu
->panenumber
[dy
];
2002 ScreenRetrieve (state
[statecount
].screen_behind
2003 = xmalloc (screensize
));
2005 = state
[i
].x
+ state
[i
].menu
->width
+ 2;
2006 state
[statecount
].y
= y
;
2011 IT_menu_display (state
[statecount
- 1].menu
,
2012 state
[statecount
- 1].y
,
2013 state
[statecount
- 1].x
,
2016 for (b
= 0; b
< mouse_button_count
; b
++)
2018 (void) mouse_pressed (b
, &x
, &y
);
2019 if (mouse_released (b
, &x
, &y
))
2025 ScreenUpdate (state
[0].screen_behind
);
2026 while (statecount
--)
2027 xfree (state
[statecount
].screen_behind
);
2031 /* Dispose of a menu. */
2034 XMenuDestroy (Display
*foo
, XMenu
*menu
)
2037 if (menu
->allocated
)
2039 for (i
= 0; i
< menu
->count
; i
++)
2040 if (menu
->submenu
[i
])
2041 XMenuDestroy (foo
, menu
->submenu
[i
]);
2043 xfree (menu
->submenu
);
2044 xfree (menu
->panenumber
);
2050 x_pixel_width (struct frame
*f
)
2052 return FRAME_WIDTH (f
);
2056 x_pixel_height (struct frame
*f
)
2058 return FRAME_HEIGHT (f
);
2060 #endif /* !HAVE_X_WINDOWS */
2062 /* ----------------------- DOS / UNIX conversion --------------------- */
2064 /* Destructively turn backslashes into slashes. */
2067 dostounix_filename (p
)
2078 /* Destructively turn slashes into backslashes. */
2081 unixtodos_filename (p
)
2092 /* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
2095 getdefdir (drive
, dst
)
2099 char in_path
[4], *p
= in_path
;
2102 /* Generate "X:." (when drive is X) or "." (when drive is 0). */
2105 *p
++ = drive
+ 'A' - 1;
2112 _fixpath (in_path
, dst
);
2116 /* Under LFN we expect to get pathnames in their true case. */
2118 for (p
= dst
; *p
; p
++)
2119 if (*p
>= 'A' && *p
<= 'Z')
2126 /* Remove all CR's that are followed by a LF. */
2131 register unsigned char *buf
;
2133 unsigned char *np
= buf
;
2134 unsigned char *startp
= buf
;
2135 unsigned char *endp
= buf
+ n
;
2140 while (buf
< endp
- 1)
2144 if (*(++buf
) != 0x0a)
2155 #if defined(__DJGPP__) && __DJGPP__ == 2 && __DJGPP_MINOR__ == 0
2157 /* In DJGPP v2.0, library `write' can call `malloc', which might
2158 cause relocation of the buffer whose address we get in ADDR.
2159 Here is a version of `write' that avoids calling `malloc',
2160 to serve us until such time as the library is fixed.
2161 Actually, what we define here is called `__write', because
2162 `write' is a stub that just jmp's to `__write' (to be
2163 POSIXLY-correct with respect to the global name-space). */
2165 #include <io.h> /* for _write */
2166 #include <libc/dosio.h> /* for __file_handle_modes[] */
2168 static char xbuf
[64 * 1024]; /* DOS cannot write more in one chunk */
2170 #define XBUF_END (xbuf + sizeof (xbuf) - 1)
2173 __write (int handle
, const void *buffer
, size_t count
)
2178 if(__file_handle_modes
[handle
] & O_BINARY
)
2179 return _write (handle
, buffer
, count
);
2183 const char *bp
= buffer
;
2184 int total_written
= 0;
2185 int nmoved
= 0, ncr
= 0;
2189 /* The next test makes sure there's space for at least 2 more
2190 characters in xbuf[], so both CR and LF can be put there. */
2202 if (xbp
>= XBUF_END
|| !count
)
2204 size_t to_write
= nmoved
+ ncr
;
2205 int written
= _write (handle
, xbuf
, to_write
);
2210 total_written
+= nmoved
; /* CRs aren't counted in ret value */
2212 /* If some, but not all were written (disk full?), return
2213 an estimate of the total written bytes not counting CRs. */
2214 if (written
< to_write
)
2215 return total_written
- (to_write
- written
) * nmoved
/to_write
;
2222 return total_written
;
2226 #endif /* __DJGPP__ == 2 && __DJGPP_MINOR__ == 0 */
2228 DEFUN ("msdos-long-file-names", Fmsdos_long_file_names
, Smsdos_long_file_names
,
2230 "Return non-nil if long file names are supported on MSDOS.")
2233 return (_USE_LFN
? Qt
: Qnil
);
2236 /* The Emacs root directory as determined by init_environment. */
2238 static char emacsroot
[MAXPATHLEN
];
2241 rootrelativepath (rel
)
2244 static char result
[MAXPATHLEN
+ 10];
2246 strcpy (result
, emacsroot
);
2247 strcat (result
, "/");
2248 strcat (result
, rel
);
2252 /* Define a lot of environment variables if not already defined. Don't
2253 remove anything unless you know what you're doing -- lots of code will
2254 break if one or more of these are missing. */
2257 init_environment (argc
, argv
, skip_args
)
2265 /* Find our root from argv[0]. Assuming argv[0] is, say,
2266 "c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
2267 root
= alloca (MAXPATHLEN
+ 20);
2268 _fixpath (argv
[0], root
);
2270 len
= strlen (root
);
2271 while (len
> 0 && root
[len
] != '/' && root
[len
] != ':')
2274 if (len
> 4 && strcmp (root
+ len
- 4, "/bin") == 0)
2275 root
[len
- 4] = '\0';
2277 strcpy (root
, "c:/emacs"); /* Only under debuggers, I think. */
2278 len
= strlen (root
);
2279 strcpy (emacsroot
, root
);
2281 /* We default HOME to our root. */
2282 setenv ("HOME", root
, 0);
2284 /* We default EMACSPATH to root + "/bin". */
2285 strcpy (root
+ len
, "/bin");
2286 setenv ("EMACSPATH", root
, 0);
2288 /* I don't expect anybody to ever use other terminals so the internal
2289 terminal is the default. */
2290 setenv ("TERM", "internal", 0);
2292 #ifdef HAVE_X_WINDOWS
2293 /* Emacs expects DISPLAY to be set. */
2294 setenv ("DISPLAY", "unix:0.0", 0);
2297 /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
2298 downcase it and mirror the backslashes. */
2299 s
= getenv ("COMSPEC");
2300 if (!s
) s
= "c:/command.com";
2301 t
= alloca (strlen (s
) + 1);
2304 dostounix_filename (t
);
2305 setenv ("SHELL", t
, 0);
2307 /* PATH is also downcased and backslashes mirrored. */
2308 s
= getenv ("PATH");
2310 t
= alloca (strlen (s
) + 3);
2311 /* Current directory is always considered part of MsDos's path but it is
2312 not normally mentioned. Now it is. */
2313 strcat (strcpy (t
, ".;"), s
);
2315 dostounix_filename (t
); /* Not a single file name, but this should work. */
2316 setenv ("PATH", t
, 1);
2318 /* In some sense all dos users have root privileges, so... */
2319 setenv ("USER", "root", 0);
2320 setenv ("NAME", getenv ("USER"), 0);
2322 /* Time zone determined from country code. To make this possible, the
2323 country code may not span more than one time zone. In other words,
2324 in the USA, you lose. */
2326 switch (dos_country_code
)
2328 case 31: /* Belgium */
2329 case 32: /* The Netherlands */
2330 case 33: /* France */
2331 case 34: /* Spain */
2332 case 36: /* Hungary */
2333 case 38: /* Yugoslavia (or what's left of it?) */
2334 case 39: /* Italy */
2335 case 41: /* Switzerland */
2336 case 42: /* Tjekia */
2337 case 45: /* Denmark */
2338 case 46: /* Sweden */
2339 case 47: /* Norway */
2340 case 48: /* Poland */
2341 case 49: /* Germany */
2342 /* Daylight saving from last Sunday in March to last Sunday in
2343 September, both at 2AM. */
2344 setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
2346 case 44: /* United Kingdom */
2347 case 351: /* Portugal */
2348 case 354: /* Iceland */
2349 setenv ("TZ", "GMT+00", 0);
2351 case 81: /* Japan */
2352 case 82: /* Korea */
2353 setenv ("TZ", "JST-09", 0);
2355 case 90: /* Turkey */
2356 case 358: /* Finland */
2357 setenv ("TZ", "EET-02", 0);
2359 case 972: /* Israel */
2360 /* This is an approximation. (For exact rules, use the
2361 `zoneinfo/israel' file which comes with DJGPP, but you need
2362 to install it in `/usr/share/zoneinfo/' directory first.) */
2363 setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
2371 static int break_stat
; /* BREAK check mode status. */
2372 static int stdin_stat
; /* stdin IOCTL status. */
2376 /* These must be global. */
2377 static _go32_dpmi_seginfo ctrl_break_vector
;
2378 static _go32_dpmi_registers ctrl_break_regs
;
2379 static int ctrlbreakinstalled
= 0;
2381 /* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */
2384 ctrl_break_func (regs
)
2385 _go32_dpmi_registers
*regs
;
2391 install_ctrl_break_check ()
2393 if (!ctrlbreakinstalled
)
2395 /* Don't press Ctrl-Break if you don't have either DPMI or Emacs
2396 was compiler with Djgpp 1.11 maintenance level 5 or later! */
2397 ctrlbreakinstalled
= 1;
2398 ctrl_break_vector
.pm_offset
= (int) ctrl_break_func
;
2399 _go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector
,
2401 _go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector
);
2405 #endif /* __DJGPP__ < 2 */
2407 /* Turn off Dos' Ctrl-C checking and inhibit interpretation of
2408 control chars by DOS. Determine the keyboard type. */
2413 union REGS inregs
, outregs
;
2414 static int first_time
= 1;
2416 break_stat
= getcbrk ();
2419 install_ctrl_break_check ();
2425 int86 (0x15, &inregs
, &outregs
);
2426 extended_kbd
= (!outregs
.x
.cflag
) && (outregs
.h
.ah
== 0);
2430 if (internal_terminal
2431 #ifdef HAVE_X_WINDOWS
2432 && inhibit_window_system
2436 inregs
.x
.ax
= 0x0021;
2437 int86 (0x33, &inregs
, &outregs
);
2438 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
2441 /* Reportedly, the above doesn't work for some mouse drivers. There
2442 is an additional detection method that should work, but might be
2443 a little slower. Use that as an alternative. */
2444 inregs
.x
.ax
= 0x0000;
2445 int86 (0x33, &inregs
, &outregs
);
2446 have_mouse
= (outregs
.x
.ax
& 0xffff) == 0xffff;
2451 have_mouse
= 1; /* enable mouse */
2454 if (outregs
.x
.bx
== 3)
2456 mouse_button_count
= 3;
2457 mouse_button_translate
[0] = 0; /* Left */
2458 mouse_button_translate
[1] = 2; /* Middle */
2459 mouse_button_translate
[2] = 1; /* Right */
2463 mouse_button_count
= 2;
2464 mouse_button_translate
[0] = 0;
2465 mouse_button_translate
[1] = 1;
2467 mouse_position_hook
= &mouse_get_pos
;
2476 stdin_stat
= setmode (fileno (stdin
), O_BINARY
);
2477 return (stdin_stat
!= -1);
2480 return (setmode (fileno (stdin
), O_BINARY
) != -1);
2482 #else /* __DJGPP__ < 2 */
2486 /* I think it is wrong to overwrite `stdin_stat' every time
2487 but the first one this function is called, but I don't
2488 want to change the way it used to work in v1.x.--EZ */
2490 inregs
.x
.ax
= 0x4400; /* Get IOCTL status. */
2491 inregs
.x
.bx
= 0x00; /* 0 = stdin. */
2492 intdos (&inregs
, &outregs
);
2493 stdin_stat
= outregs
.h
.dl
;
2495 inregs
.x
.dx
= stdin_stat
| 0x0020; /* raw mode */
2496 inregs
.x
.ax
= 0x4401; /* Set IOCTL status */
2497 intdos (&inregs
, &outregs
);
2498 return !outregs
.x
.cflag
;
2500 #endif /* __DJGPP__ < 2 */
2503 /* Restore status of standard input and Ctrl-C checking. */
2508 union REGS inregs
, outregs
;
2510 setcbrk (break_stat
);
2515 return (setmode (fileno (stdin
), stdin_stat
) != -1);
2517 #else /* not __DJGPP__ >= 2 */
2519 inregs
.x
.ax
= 0x4401; /* Set IOCTL status. */
2520 inregs
.x
.bx
= 0x00; /* 0 = stdin. */
2521 inregs
.x
.dx
= stdin_stat
;
2522 intdos (&inregs
, &outregs
);
2523 return !outregs
.x
.cflag
;
2525 #endif /* not __DJGPP__ >= 2 */
2529 /* Run command as specified by ARGV in directory DIR.
2530 The command is run with input from TEMPIN, output to
2531 file TEMPOUT and stderr to TEMPERR. */
2534 run_msdos_command (argv
, dir
, tempin
, tempout
, temperr
)
2535 unsigned char **argv
;
2537 int tempin
, tempout
, temperr
;
2539 char *saveargv1
, *saveargv2
, **envv
;
2540 char oldwd
[MAXPATHLEN
+ 1]; /* Fixed size is safe on MSDOS. */
2541 int msshell
, result
= -1;
2542 int in
, out
, inbak
, outbak
, errbak
;
2546 /* Get current directory as MSDOS cwd is not per-process. */
2549 cmd
= Ffile_name_nondirectory (build_string (argv
[0]));
2550 msshell
= !NILP (Fmember (cmd
, Fsymbol_value (intern ("msdos-shells"))))
2551 && !strcmp ("-c", argv
[1]);
2554 saveargv1
= argv
[1];
2555 saveargv2
= argv
[2];
2559 char *p
= alloca (strlen (argv
[2]) + 1);
2561 strcpy (argv
[2] = p
, saveargv2
);
2562 while (*p
&& isspace (*p
))
2564 while (*p
&& !isspace (*p
))
2572 /* Build the environment array. */
2574 extern Lisp_Object Vprocess_environment
;
2575 Lisp_Object tmp
, lst
;
2578 lst
= Vprocess_environment
;
2579 len
= XFASTINT (Flength (lst
));
2581 envv
= alloca ((len
+ 1) * sizeof (char *));
2582 for (i
= 0; i
< len
; i
++)
2586 CHECK_STRING (tmp
, 0);
2587 envv
[i
] = alloca (XSTRING (tmp
)->size
+ 1);
2588 strcpy (envv
[i
], XSTRING (tmp
)->data
);
2590 envv
[len
] = (char *) 0;
2594 chdir (XSTRING (dir
)->data
);
2598 if (inbak
< 0 || outbak
< 0 || errbak
< 0)
2599 goto done
; /* Allocation might fail due to lack of descriptors. */
2602 mouse_get_xy (&x
, &y
);
2604 dos_ttcooked (); /* do it here while 0 = stdin */
2612 if (msshell
&& !argv
[3])
2614 /* MS-DOS native shells are too restrictive. For starters, they
2615 cannot grok commands longer than 126 characters. In DJGPP v2
2616 and later, `system' is much smarter, so we'll call it instead. */
2618 extern char **environ
;
2621 /* A shell gets a single argument--its full command
2622 line--whose original was saved in `saveargv2'. */
2623 result
= system (saveargv2
);
2627 #endif /* __DJGPP__ > 1 */
2629 result
= spawnve (P_WAIT
, argv
[0], argv
, envv
);
2642 mouse_moveto (x
, y
);
2649 argv
[1] = saveargv1
;
2650 argv
[2] = saveargv2
;
2658 fprintf (stderr
, "%s not yet implemented\r\n", badfunc
);
2665 /* ------------------------- Compatibility functions -------------------
2670 /* Hostnames for a pc are not really funny,
2671 but they are used in change log so we emulate the best we can. */
2673 gethostname (p
, size
)
2677 char *q
= egetenv ("HOSTNAME");
2684 /* When time zones are set from Ms-Dos too many C-libraries are playing
2685 tricks with time values. We solve this by defining our own version
2686 of `gettimeofday' bypassing GO32. Our version needs to be initialized
2687 once and after each call to `tzset' with TZ changed. That is
2688 accomplished by aliasing tzset to init_gettimeofday. */
2690 static struct tm time_rec
;
2693 gettimeofday (struct timeval
*tp
, struct timezone
*tzp
)
2701 if (t
.ti_hour
< time_rec
.tm_hour
) /* midnight wrap */
2705 time_rec
.tm_year
= d
.da_year
- 1900;
2706 time_rec
.tm_mon
= d
.da_mon
- 1;
2707 time_rec
.tm_mday
= d
.da_day
;
2710 time_rec
.tm_hour
= t
.ti_hour
;
2711 time_rec
.tm_min
= t
.ti_min
;
2712 time_rec
.tm_sec
= t
.ti_sec
;
2715 tm
.tm_gmtoff
= dos_timezone_offset
;
2717 tp
->tv_sec
= mktime (&tm
); /* may modify tm */
2718 tp
->tv_usec
= t
.ti_hund
* (1000000 / 100);
2720 /* Ignore tzp; it's obsolescent. */
2724 #endif /* __DJGPP__ < 2 */
2727 * A list of unimplemented functions that we silently ignore.
2731 unsigned alarm (s
) unsigned s
; {}
2732 fork () { return 0; }
2733 int kill (x
, y
) int x
, y
; { return -1; }
2735 void volatile pause () {}
2736 sigsetmask (x
) int x
; { return 0; }
2740 setpgrp () {return 0; }
2741 setpriority (x
,y
,z
) int x
,y
,z
; { return 0; }
2742 sigblock (mask
) int mask
; { return 0; }
2743 unrequest_sigio () {}
2746 #include "sysselect.h"
2748 #ifndef EMACS_TIME_ZERO_OR_NEG_P
2749 #define EMACS_TIME_ZERO_OR_NEG_P(time) \
2750 ((long)(time).tv_sec < 0 \
2751 || ((time).tv_sec == 0 \
2752 && (long)(time).tv_usec <= 0))
2756 /* Only event queue is checked. */
2757 /* We don't have to call timer_check here
2758 because wait_reading_process_input takes care of that. */
2760 sys_select (nfds
, rfds
, wfds
, efds
, timeout
)
2762 SELECT_TYPE
*rfds
, *wfds
, *efds
;
2763 EMACS_TIME
*timeout
;
2771 check_input
= FD_ISSET (0, rfds
);
2782 /* If we are looking only for the terminal, with no timeout,
2783 just read it and wait -- that's more efficient. */
2786 while (!detect_input_pending ())
2795 EMACS_TIME clnow
, cllast
, cldiff
;
2798 EMACS_SET_SECS_USECS (cllast
, t
.ti_sec
, t
.ti_hund
* 10000L);
2800 while (!check_input
|| !detect_input_pending ())
2803 EMACS_SET_SECS_USECS (clnow
, t
.ti_sec
, t
.ti_hund
* 10000L);
2804 EMACS_SUB_TIME (cldiff
, clnow
, cllast
);
2806 /* When seconds wrap around, we assume that no more than
2807 1 minute passed since last `gettime'. */
2808 if (EMACS_TIME_NEG_P (cldiff
))
2809 EMACS_SET_SECS (cldiff
, EMACS_SECS (cldiff
) + 60);
2810 EMACS_SUB_TIME (*timeout
, *timeout
, cldiff
);
2812 /* Stop when timeout value crosses zero. */
2813 if (EMACS_TIME_ZERO_OR_NEG_P (*timeout
))
2828 * Define overlaid functions:
2830 * chdir -> sys_chdir
2831 * tzset -> init_gettimeofday
2832 * abort -> dos_abort
2837 extern int chdir ();
2843 int len
= strlen (path
);
2844 char *tmp
= (char *)path
;
2846 if (*tmp
&& tmp
[1] == ':')
2848 if (getdisk () != tolower (tmp
[0]) - 'a')
2849 setdisk (tolower (tmp
[0]) - 'a');
2850 tmp
+= 2; /* strip drive: KFS 1995-07-06 */
2854 if (len
> 1 && (tmp
[len
- 1] == '/'))
2856 char *tmp1
= (char *) alloca (len
+ 1);
2867 extern void tzset (void);
2870 init_gettimeofday ()
2876 ltm
= gtm
= time (NULL
);
2877 ltm
= mktime (lstm
= localtime (<m
));
2878 gtm
= mktime (gmtime (>m
));
2879 time_rec
.tm_hour
= 99; /* force gettimeofday to get date */
2880 time_rec
.tm_isdst
= lstm
->tm_isdst
;
2881 dos_timezone_offset
= time_rec
.tm_gmtoff
= (int)(gtm
- ltm
) / 60;
2888 dos_abort (file
, line
)
2892 char buffer1
[200], buffer2
[400];
2895 sprintf (buffer1
, "<EMACS FATAL ERROR IN %s LINE %d>", file
, line
);
2896 for (i
= j
= 0; buffer1
[i
]; i
++) {
2897 buffer2
[j
++] = buffer1
[i
];
2898 buffer2
[j
++] = 0x70;
2900 dosmemput (buffer2
, j
, (int)ScreenPrimary
);
2901 ScreenSetCursor (2, 0);
2909 ScreenSetCursor (10, 0);
2910 cputs ("\r\n\nEmacs aborted!\r\n");
2912 /* Generate traceback, so we could tell whodunit. */
2913 signal (SIGINT
, SIG_DFL
);
2914 __asm__
__volatile__ ("movb $0x1b,%al;call ___djgpp_hw_exception");
2922 recent_doskeys
= Fmake_vector (make_number (NUM_RECENT_DOSKEYS
), Qnil
);
2923 staticpro (&recent_doskeys
);
2925 defsubr (&Srecent_doskeys
);
2926 defsubt (&Smsdos_long_file_names
);