/* MS-DOS specific C utilities.
- Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Contributed by Morten Welinder */
+/* New display, keyboard, and mouse control by Kim F. Storm */
/* Note: some of the stuff here was taken from end of sysdep.c in demacs. */
#include "msdos.h"
#include "systime.h"
#include "termhooks.h"
+#include "dispextern.h"
+#include "termopts.h"
#include "frame.h"
+#include "window.h"
#include <go32.h>
#include <pc.h>
#include <ctype.h>
/* Damn that local process.h! Instead we can define P_WAIT ourselves. */
#define P_WAIT 1
-static int break_stat; /* BREAK check mode status. */
-static int stdin_stat; /* stdin IOCTL status. */
-static int extended_kbd; /* 101 (102) keyboard present. */
-int have_mouse; /* Mouse present? */
+static unsigned long
+event_timestamp ()
+{
+ struct time t;
+ unsigned long s;
+
+ gettime (&t);
+ s = t.ti_min;
+ s *= 60;
+ s += t.ti_sec;
+ s *= 1000;
+ s += t.ti_hund * 10;
+
+ return s;
+}
+
+\f
+/* ------------------------ Mouse control ---------------------------
+ *
+ * Coordinates are in screen positions and zero based.
+ * Mouse buttons are numbered from left to right and also zero based.
+ */
+
+int have_mouse; /* 0: no, 1: enabled, -1: disabled */
+static int mouse_visible;
+
static int mouse_last_x;
static int mouse_last_y;
-/* Turn off Dos' Ctrl-C checking and inhibit interpretation of control chars
- by Dos. Determine the keyboard type. */
-int
-dos_ttraw ()
+static int mouse_button_translate[NUM_MOUSE_BUTTONS];
+static int mouse_button_count;
+
+void
+mouse_on ()
{
- union REGS inregs, outregs;
+ union REGS regs;
- inregs.h.ah = 0xc0;
- int86 (0x15, &inregs, &outregs);
- extended_kbd = (!outregs.x.cflag) && (outregs.h.ah == 0);
+ if (have_mouse > 0 && !mouse_visible)
+ {
+ if (termscript)
+ fprintf (termscript, "<M_ON>");
+ regs.x.ax = 0x0001;
+ int86 (0x33, ®s, ®s);
+ mouse_visible = 1;
+ }
+}
- break_stat = getcbrk ();
- setcbrk (0);
- install_ctrl_break_check ();
- have_mouse = mouse_init1 ();
+void
+mouse_off ()
+{
+ union REGS regs;
- inregs.x.ax = 0x4400; /* Get IOCTL status. */
- inregs.x.bx = 0x00; /* 0 = stdin. */
- intdos (&inregs, &outregs);
- stdin_stat = outregs.h.dl;
+ if (have_mouse > 0 && mouse_visible)
+ {
+ if (termscript)
+ fprintf (termscript, "<M_OFF>");
+ regs.x.ax = 0x0002;
+ int86 (0x33, ®s, ®s);
+ mouse_visible = 0;
+ }
+}
- inregs.x.dx = (outregs.x.dx | 0x0020) & 0x0027; /* raw mode */
- inregs.h.al = 0x01;
- intdos (&inregs, &outregs);
- return !outregs.x.cflag;
+void
+mouse_moveto (x, y)
+ int x, y;
+{
+ union REGS regs;
+
+ if (termscript)
+ fprintf (termscript, "<M_XY=%dx%d>", x, y);
+ regs.x.ax = 0x0004;
+ mouse_last_x = regs.x.cx = x * 8;
+ mouse_last_y = regs.x.dx = y * 8;
+ int86 (0x33, ®s, ®s);
}
-/* Restore status of standard input and Ctrl-C checking. */
-int
-dos_ttcooked ()
+static int
+mouse_pressed (b, xp, yp)
+ int b, *xp, *yp;
{
- union REGS inregs, outregs;
+ union REGS regs;
- setcbrk (break_stat);
- if (have_mouse) mouse_off ();
+ if (b >= mouse_button_count)
+ return 0;
+ regs.x.ax = 0x0005;
+ regs.x.bx = mouse_button_translate[b];
+ int86 (0x33, ®s, ®s);
+ if (regs.x.bx)
+ *xp = regs.x.cx / 8, *yp = regs.x.dx / 8;
+ return (regs.x.bx != 0);
+}
- inregs.x.ax = 0x4401; /* Set IOCTL status. */
- inregs.x.bx = 0x00; /* 0 = stdin. */
- inregs.x.dx = stdin_stat;
- intdos (&inregs, &outregs);
- return !outregs.x.cflag;
+static int
+mouse_released (b, xp, yp)
+ int b, *xp, *yp;
+{
+ union REGS regs;
+
+ if (b >= mouse_button_count)
+ return 0;
+ regs.x.ax = 0x0006;
+ regs.x.bx = mouse_button_translate[b];
+ int86 (0x33, ®s, ®s);
+ if (regs.x.bx)
+ *xp = regs.x.cx / 8, *yp = regs.x.dx / 8;
+ return (regs.x.bx != 0);
}
-static unsigned short
-ibmpc_translate_map[] =
+static void
+mouse_get_xy (int *x, int *y)
{
- /* --------------- 00 to 0f --------------- */
- 0, /* Ctrl Break */
- 0xff1b, /* Escape */
- 0xffb1, /* Keypad 1 */
- 0xffb2, /* Keypad 2 */
- 0xffb3, /* Keypad 3 */
- 0xffb4, /* Keypad 4 */
- 0xffb5, /* Keypad 5 */
- 0xffb6, /* Keypad 6 */
- 0xffb7, /* Keypad 7 */
- 0xffb8, /* Keypad 8 */
- 0xffb9, /* Keypad 9 */
- 0xffb0, /* Keypad 0 */
- '-', '=',
- 0xff08, /* Backspace */
- 0xff74, /* (Shift) Tab [Tab doesn't use this table] */
+ union REGS regs;
- /* --------------- 10 to 1f --------------- */
- 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']',
- 0xff8d, /* Keypad Enter */
- 0, /* Ctrl */
- 'a', 's',
+ regs.x.ax = 0x0003;
+ int86 (0x33, ®s, ®s);
+ *x = regs.x.cx / 8;
+ *y = regs.x.dx / 8;
+}
- /* --------------- 20 to 2f --------------- */
- 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`',
- 0, /* Left shift */
- '\\', 'z', 'x', 'c', 'v',
+void
+mouse_get_pos (f, insist, bar_window, part, x, y, time)
+ FRAME_PTR *f;
+ int insist;
+ Lisp_Object *bar_window, *x, *y;
+ enum scroll_bar_part *part;
+ unsigned long *time;
+{
+ int ix, iy;
+ union REGS regs;
- /* --------------- 30 to 3f --------------- */
- 'b', 'n', 'm', ',', '.',
- 0xffaf, /* Grey / */
- 0, /* Right shift */
- 0xffaa, /* Grey * */
- 0, /* Alt */
- ' ',
- 0, /* Caps Lock */
- 0xffbe, /* F1 */
- 0xffbf, /* F2 */
- 0xffc0, /* F3 */
- 0xffc1, /* F4 */
- 0xffc2, /* F5 */
+ regs.x.ax = 0x0003;
+ int86 (0x33, ®s, ®s);
+ *f = selected_frame;
+ *bar_window = Qnil;
+ mouse_get_xy (&ix, &iy);
+ selected_frame->mouse_moved = 0;
+ *x = make_number (ix);
+ *y = make_number (iy);
+ *time = event_timestamp ();
+}
- /* --------------- 40 to 4f --------------- */
- 0xffc3, /* F6 */
- 0xffc4, /* F7 */
- 0xffc5, /* F8 */
- 0xffc6, /* F9 */
- 0xffc7, /* F10 */
- 0, /* Num Lock */
- 0, /* Scroll Lock */
- 0xff50, /* Home */
- 0xff52, /* Up */
- 0xff55, /* Page Up */
- 0xffad, /* Grey - */
- 0xff51, /* Left */
- 0xffb5, /* Keypad 5 */
- 0xff53, /* Right */
- 0xffab, /* Grey + */
- 0xff57, /* End */
+static void
+mouse_check_moved ()
+{
+ int x, y;
- /* --------------- 50 to 5f --------------- */
- 0xff54, /* Down */
- 0xff56, /* Page Down */
- 0xff63, /* Insert */
- 0xffff, /* Delete */
- 0xffbe, /* (Shift) F1 */
- 0xffbf, /* (Shift) F2 */
- 0xffc0, /* (Shift) F3 */
- 0xffc1, /* (Shift) F4 */
- 0xffc2, /* (Shift) F5 */
- 0xffc3, /* (Shift) F6 */
- 0xffc4, /* (Shift) F7 */
- 0xffc5, /* (Shift) F8 */
- 0xffc6, /* (Shift) F9 */
- 0xffc7, /* (Shift) F10 */
- 0xffbe, /* (Ctrl) F1 */
- 0xffbf, /* (Ctrl) F2 */
+ mouse_get_xy (&x, &y);
+ selected_frame->mouse_moved |= (x != mouse_last_x || y != mouse_last_y);
+ mouse_last_x = x;
+ mouse_last_y = y;
+}
- /* --------------- 60 to 6f --------------- */
- 0xffc0, /* (Ctrl) F3 */
- 0xffc1, /* (Ctrl) F4 */
- 0xffc2, /* (Ctrl) F5 */
- 0xffc3, /* (Ctrl) F6 */
- 0xffc4, /* (Ctrl) F7 */
- 0xffc5, /* (Ctrl) F8 */
- 0xffc6, /* (Ctrl) F9 */
- 0xffc7, /* (Ctrl) F10 */
- 0xffbe, /* (Alt) F1 */
- 0xffbf, /* (Alt) F2 */
- 0xffc0, /* (Alt) F3 */
- 0xffc1, /* (Alt) F4 */
- 0xffc2, /* (Alt) F5 */
- 0xffc3, /* (Alt) F6 */
- 0xffc4, /* (Alt) F7 */
- 0xffc5, /* (Alt) F8 */
+void
+mouse_init ()
+{
+ union REGS regs;
- /* --------------- 70 to 7f --------------- */
- 0xffc6, /* (Alt) F9 */
- 0xffc7, /* (Alt) F10 */
- 0xff6d, /* (Ctrl) Sys Rq */
- 0xff51, /* (Ctrl) Left */
- 0xff53, /* (Ctrl) Right */
- 0xff57, /* (Ctrl) End */
- 0xff56, /* (Ctrl) Page Down */
- 0xff50, /* (Ctrl) Home */
- '1', '2', '3', '4', '5', '6', '7', '8', /* (Alt) */
+ if (termscript)
+ fprintf (termscript, "<M_INIT>");
- /* --------------- 80 to 8f --------------- */
- '9', '0', '-', '=', /* (Alt) */
- 0xff55, /* (Ctrl) Page Up */
- 0xffc8, /* F11 */
- 0xffc9, /* F12 */
- 0xffc8, /* (Shift) F11 */
- 0xffc9, /* (Shift) F12 */
- 0xffc8, /* (Ctrl) F11 */
- 0xffc9, /* (Ctrl) F12 */
- 0xffc8, /* (Alt) F11 */
- 0xffc9, /* (Alt) F12 */
- 0xff52, /* (Ctrl) Up */
- 0xffae, /* (Ctrl) Grey - */
- 0xffb5, /* (Ctrl) Keypad 5 */
+ regs.x.ax = 0x0021;
+ int86 (0x33, ®s, ®s);
- /* --------------- 90 to 9f --------------- */
- 0xffab, /* (Ctrl) Grey + */
- 0xff54, /* (Ctrl) Down */
- 0xff63, /* (Ctrl) Insert */
- 0xffff, /* (Ctrl) Delete */
- 0xff09, /* (Ctrl) Tab */
- 0xffaf, /* (Ctrl) Grey / */
- 0xffaa, /* (Ctrl) Grey * */
- 0xff50, /* (Alt) Home */
- 0xff52, /* (Alt) Up */
- 0xff55, /* (Alt) Page Up */
- 0, /* NO KEY */
- 0xff51, /* (Alt) Left */
- 0, /* NO KEY */
- 0xff53, /* (Alt) Right */
- 0, /* NO KEY */
- 0xff57, /* (Alt) End */
+ regs.x.ax = 0x0007;
+ regs.x.cx = 0;
+ regs.x.dx = 8 * (ScreenCols () - 1);
+ int86 (0x33, ®s, ®s);
- /* --------------- a0 to af --------------- */
- 0xff54, /* (Alt) Down */
- 0xff56, /* (Alt) Page Down */
- 0xff63, /* (Alt) Insert */
- 0xffff, /* (Alt) Delete */
- 0xffaf, /* (Alt) Grey / */
- 0xff09, /* (Alt) Tab */
- 0xff0d /* (Alt) Enter */
-};
+ regs.x.ax = 0x0008;
+ regs.x.cx = 0;
+ regs.x.dx = 8 * (ScreenRows () - 1);
+ int86 (0x33, ®s, ®s);
-/* Get a char from keyboard. Function keys are put into the event queue. */
-static int
-dos_rawgetc ()
-{
- struct input_event event;
- struct timeval tv;
- union REGS regs;
- int ctrl_p, alt_p, shift_p;
+ mouse_moveto (0, 0);
+ mouse_visible = 0;
+}
+\f
+/* ------------------------- Screen control ----------------------
+ *
+ */
- /* Calculate modifier bits */
- regs.h.ah = extended_kbd ? 0x12 : 0x02;
- int86 (0x16, ®s, ®s);
- ctrl_p = ((regs.h.al & 4) != 0);
- shift_p = ((regs.h.al & 3) != 0);
- /* Please be very careful here not to break international keyboard support.
- When Keyb.Com is loaded, the key marked `Alt Gr' is used for accessing
- characters like { and } if their positions are overlaid. */
- alt_p = ((extended_kbd ? (regs.h.ah & 2) : (regs.h.al & 8)) != 0);
-
- while (kbhit ())
- {
- union REGS regs;
- register unsigned char c;
- int sc, code;
+static int internal_terminal = 0;
- regs.h.ah = extended_kbd ? 0x10 : 0x00;
- int86 (0x16, ®s, ®s);
- c = regs.h.al;
- sc = regs.h.ah;
+#ifndef HAVE_X_WINDOWS
+extern unsigned char ScreenAttrib;
+static int screen_face;
+static int highlight;
- /* Determine from the scan code if a keypad key was pressed. */
- if (c >= '0' && c <= '9' && sc > 0xb)
- sc = (c == '0') ? 0xb : (c - '0' + 1), c = 0;
- else if (sc == 0x53 && c != 0xe0)
- {
- code = 0xffae; /* Keypad decimal point/comma. */
- goto nonascii;
- }
- else if (sc == 0xe0)
- {
- switch (c)
- {
- case 10: /* Ctrl Enter */
- case 13:
- sc = 0x1c;
- break;
- case '/':
- sc = 0x35;
- break;
- default:
- sc = 0;
- };
- c = 0;
- }
+static int screen_size_X;
+static int screen_size_Y;
+static int screen_size;
- if (c == 0
- || c == ' '
- || alt_p
- || (ctrl_p && shift_p)
- || (c == 0xe0 && sc != 0) /* Pseudo-key */
- || sc == 0x37 /* Grey * */
- || sc == 0x4a /* Grey - */
- || sc == 0x4e /* Grey + */
- || sc == 0x0e) /* Back space *key*, not Ctrl-h */
- {
- if (sc >= (sizeof (ibmpc_translate_map) / sizeof (short)))
- code = 0;
- else
- code = ibmpc_translate_map[sc];
- if (code != 0)
- {
- if (code >= 0x100)
- {
- nonascii:
- event.kind = non_ascii_keystroke;
- event.code = (code & 0xff) + 0xff00;
- }
- else
- {
- /* Don't return S- if we don't have to. `shifted' is
- supposed to be the shifted versions of the characters
- in `unshifted'. Unfortunately, this is only true for
- US keyboard layout. If anyone knows how to do this
- right, please tell us. */
- static char *unshifted
- = "abcdefghijklmnopqrstuvwxyz,./=;[\\]'-`0123456789";
- static char *shifted
- = "ABCDEFGHIJKLMNOPQRSTUVWXYZ<>?+:{|}\"_~)!@#$%^&*(";
- char *pos;
-
- if (shift_p && (pos = strchr (unshifted, code)))
- {
- c = shifted[pos - unshifted];
- shift_p = 0;
- }
- else
- if (c == 0) c = code;
- event.kind = ascii_keystroke;
- event.code = c;
- }
- event.modifiers
- = (shift_p ? shift_modifier : 0)
- + (ctrl_p ? ctrl_modifier : 0)
- + (alt_p ? meta_modifier : 0);
- /* EMACS == Enter Meta Alt Control Shift */
- event.frame_or_window = selected_frame;
- gettimeofday (&tv, NULL);
- event.timestamp = tv.tv_usec;
- kbd_buffer_store_event (&event);
- }
- } else
- return c;
- }
+static int current_pos_X;
+static int current_pos_Y;
+static int new_pos_X;
+static int new_pos_Y;
- if (have_mouse)
- {
- int but, press, x, y, ok;
+static void *startup_screen_buffer;
+static int startup_screen_size_X;
+static int startup_screen_size_Y;
+static int startup_pos_X;
+static int startup_pos_Y;
+static unsigned char startup_screen_attrib;
- /* Check for mouse movement *before* buttons. */
- mouse_check_moved ();
+static int term_setup_done;
- for (but = 0; but < NUM_MOUSE_BUTTONS; but++)
- for (press = 0; press < 2; press++)
- {
- if (press)
- ok = mouse_pressed (but, &x, &y);
- else
- ok = mouse_released (but, &x, &y);
- if (ok)
- {
- event.kind = mouse_click;
- event.code = but;
- event.modifiers
- = (shift_p ? shift_modifier : 0)
- + (ctrl_p ? ctrl_modifier : 0)
- + (alt_p ? meta_modifier : 0)
- + (press ? down_modifier : up_modifier);
- event.x = x;
- event.y = y;
- event.frame_or_window = selected_frame;
- gettimeofday (&tv, NULL);
- event.timestamp = tv.tv_usec;
- kbd_buffer_store_event (&event);
- }
- }
- }
+/* Similar to the_only_frame. */
+struct x_output the_only_x_display;
- return -1;
+/* This is never dereferenced. */
+Display *x_current_display;
+
+
+#define SCREEN_SET_CURSOR() \
+ if (current_pos_X != new_pos_X || current_pos_Y != new_pos_Y) \
+ ScreenSetCursor (current_pos_Y = new_pos_Y, current_pos_X = new_pos_X)
+
+static
+dos_direct_output (y, x, buf, len)
+ int y;
+ int x;
+ char *buf;
+ int len;
+{
+ int t = (int) ScreenPrimary + 2 * (x + y * screen_size_X);
+
+ while (--len >= 0) {
+ dosmemput (buf++, 1, t);
+ t += 2;
+ }
}
+#endif
-static int prev_get_char = -1;
+/* Flash the screen as a substitute for BEEPs. */
-/* Return 1 if a key is ready to be read without suspending execution. */
-dos_keysns ()
+#if (__DJGPP__ < 2)
+static void
+do_visible_bell (xorattr)
+ unsigned char xorattr;
{
- if (prev_get_char != -1)
- return 1;
- else
- return ((prev_get_char = dos_rawgetc ()) != -1);
+ asm volatile
+ (" movb $1,%%dl
+visible_bell_0:
+ movl _ScreenPrimary,%%eax
+ call dosmemsetup
+ movl %%eax,%%ebx
+ movl %1,%%ecx
+ movb %0,%%al
+ incl %%ebx
+visible_bell_1:
+ xorb %%al,%%gs:(%%ebx)
+ addl $2,%%ebx
+ decl %%ecx
+ jne visible_bell_1
+ decb %%dl
+ jne visible_bell_3
+visible_bell_2:
+ movzwl %%ax,%%eax
+ movzwl %%ax,%%eax
+ movzwl %%ax,%%eax
+ movzwl %%ax,%%eax
+ decw %%cx
+ jne visible_bell_2
+ jmp visible_bell_0
+visible_bell_3:"
+ : /* no output */
+ : "m" (xorattr), "g" (screen_size)
+ : "%eax", "%ebx", /* "%gs",*/ "%ecx", "%edx");
}
-/* Read a key. Return -1 if no key is ready. */
-dos_keyread ()
+static void
+ScreenVisualBell (void)
{
- if (prev_get_char != -1)
+ /* This creates an xor-mask that will swap the default fore- and
+ background colors. */
+ do_visible_bell (((the_only_x_display.foreground_pixel
+ ^ the_only_x_display.background_pixel)
+ * 0x11) & 0x7f);
+}
+#endif
+
+#ifndef HAVE_X_WINDOWS
+
+/*
+ * If we write a character in the position where the mouse is,
+ * the mouse cursor may need to be refreshed.
+ */
+
+static void
+mouse_off_maybe ()
+{
+ int x, y;
+
+ if (!mouse_visible)
+ return;
+
+ mouse_get_xy (&x, &y);
+ if (y != new_pos_Y || x < new_pos_X)
+ return;
+
+ mouse_off ();
+}
+
+static
+IT_ring_bell ()
+{
+ if (visible_bell)
{
- int c = prev_get_char;
- prev_get_char = -1;
- return c;
+ mouse_off ();
+ ScreenVisualBell ();
}
else
- return dos_rawgetc ();
+ {
+ union REGS inregs, outregs;
+ inregs.h.ah = 2;
+ inregs.h.dl = 7;
+ intdos (&inregs, &outregs);
+ }
+}
+
+static void
+IT_set_face (int face)
+{
+ struct face *fp;
+ extern struct face *intern_face (/* FRAME_PTR, struct face * */);
+
+ if (face == 1 || (face == 0 && highlight))
+ fp = FRAME_MODE_LINE_FACE (foo);
+ else if (face <= 0 || face >= FRAME_N_COMPUTED_FACES (foo))
+ fp = FRAME_DEFAULT_FACE (foo);
+ else
+ fp = intern_face (selected_frame, FRAME_COMPUTED_FACES (foo)[face]);
+ if (termscript)
+ fprintf (termscript, "<FACE:%d:%d>", FACE_FOREGROUND (fp), FACE_BACKGROUND (fp));
+ screen_face = face;
+ ScreenAttrib = (FACE_BACKGROUND (fp) << 4) | FACE_FOREGROUND (fp);
+}
+
+static
+IT_write_glyphs (GLYPH *str, int len)
+{
+ int newface;
+ int ch, l = len;
+ unsigned char *buf, *bp;
+
+ if (len == 0) return;
+
+ buf = bp = alloca (len * 2);
+
+ while (--l >= 0)
+ {
+ newface = FAST_GLYPH_FACE (*str);
+ if (newface != screen_face)
+ IT_set_face (newface);
+ ch = FAST_GLYPH_CHAR (*str);
+ *bp++ = (unsigned char)ch;
+ *bp++ = ScreenAttrib;
+
+ if (termscript)
+ fputc (ch, termscript);
+ str++;
+ }
+
+ mouse_off_maybe ();
+ dosmemput (buf, 2 * len,
+ (int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y));
+ new_pos_X += len;
}
-/* Hostnames for a pc are not really funny, but they are used in change log
- so we emulate the best we can. */
-gethostname (p, size)
- char *p;
- int size;
-{
- char *q = egetenv ("HOSTNAME");
+static
+IT_clear_end_of_line (first_unused)
+{
+ char *spaces, *sp;
+ int i, j;
+
+ IT_set_face (0);
+ if (termscript)
+ fprintf (termscript, "<CLR:EOL>");
+ i = (j = screen_size_X - new_pos_X) * 2;
+ spaces = sp = alloca (i);
+
+ while (--j >= 0)
+ {
+ *sp++ = ' ';
+ *sp++ = ScreenAttrib;
+ }
+
+ mouse_off_maybe ();
+ dosmemput (spaces, i,
+ (int)ScreenPrimary + 2 * (new_pos_X + screen_size_X * new_pos_Y));
+}
+
+static
+IT_clear_screen (void)
+{
+ if (termscript)
+ fprintf (termscript, "<CLR:SCR>");
+ IT_set_face (0);
+ mouse_off ();
+ ScreenClear ();
+ new_pos_X = new_pos_Y = 0;
+}
+
+static
+IT_clear_to_end (void)
+{
+ if (termscript)
+ fprintf (termscript, "<CLR:EOS>");
+
+ while (new_pos_Y < screen_size_Y) {
+ new_pos_X = 0;
+ IT_clear_end_of_line (0);
+ new_pos_Y++;
+ }
+}
+
+static
+IT_cursor_to (int y, int x)
+{
+ if (termscript)
+ fprintf (termscript, "\n<XY=%dx%d>", x, y);
+ new_pos_X = x;
+ new_pos_Y = y;
+}
+
+static
+IT_reassert_line_highlight (new, vpos)
+ int new, vpos;
+{
+ highlight = new;
+ IT_set_face (0); /* To possibly clear the highlighting. */
+}
+
+static
+IT_change_line_highlight (new_highlight, vpos, first_unused_hpos)
+{
+ highlight = new_highlight;
+ IT_set_face (0); /* To possibly clear the highlighting. */
+ IT_cursor_to (vpos, 0);
+ IT_clear_end_of_line (first_unused_hpos);
+}
+
+static
+IT_update_begin ()
+{
+ highlight = 0;
+ IT_set_face (0); /* To possibly clear the highlighting. */
+ screen_face = -1;
+}
+
+static
+IT_update_end ()
+{
+}
+
+/* This was more or less copied from xterm.c */
+static void
+IT_set_menu_bar_lines (window, n)
+ Lisp_Object window;
+ int n;
+{
+ struct window *w = XWINDOW (window);
+
+ XSETFASTINT (w->last_modified, 0);
+ XSETFASTINT (w->top, XFASTINT (w->top) + n);
+ XSETFASTINT (w->height, XFASTINT (w->height) - n);
+
+ /* Handle just the top child in a vertical split. */
+ if (!NILP (w->vchild))
+ IT_set_menu_bar_lines (w->vchild, n);
+
+ /* Adjust all children in a horizontal split. */
+ for (window = w->hchild; !NILP (window); window = w->next)
+ {
+ w = XWINDOW (window);
+ IT_set_menu_bar_lines (window, n);
+ }
+}
+
+/*
+ * IT_set_terminal_modes is called when emacs is started,
+ * resumed, and whenever the screen is redrawn!
+ */
+
+static
+IT_set_terminal_modes (void)
+{
+ char *colors;
+ FRAME_PTR f;
+ struct face *fp;
+
+ if (termscript)
+ fprintf (termscript, "\n<SET_TERM>");
+ highlight = 0;
+
+ screen_size_X = ScreenCols ();
+ screen_size_Y = ScreenRows ();
+ screen_size = screen_size_X * screen_size_Y;
+
+ new_pos_X = new_pos_Y = 0;
+ current_pos_X = current_pos_Y = -1;
+
+ if (term_setup_done)
+ return;
+ term_setup_done = 1;
+
+ startup_screen_size_X = screen_size_X;
+ startup_screen_size_Y = screen_size_Y;
+ startup_screen_attrib = ScreenAttrib;
+
+ ScreenGetCursor (&startup_pos_Y, &startup_pos_X);
+ ScreenRetrieve (startup_screen_buffer = xmalloc (screen_size * 2));
+
+ if (termscript)
+ fprintf (termscript, "<SCREEN SAVED (dimensions=%dx%d)>\n",
+ screen_size_X, screen_size_Y);
+}
+
+/*
+ * IT_reset_terminal_modes is called when emacs is
+ * suspended or killed.
+ */
+
+static
+IT_reset_terminal_modes (void)
+{
+ int display_row_start = (int) ScreenPrimary;
+ int saved_row_len = startup_screen_size_X * 2;
+ int update_row_len = ScreenCols () * 2;
+ int current_rows = ScreenRows ();
+ int to_next_row = update_row_len;
+ unsigned char *saved_row = startup_screen_buffer;
+ int cursor_pos_X = ScreenCols () - 1;
+ int cursor_pos_Y = ScreenRows () - 1;
+
+ if (termscript)
+ fprintf (termscript, "\n<RESET_TERM>");
+
+ highlight = 0;
+
+ if (!term_setup_done)
+ return;
+
+ mouse_off ();
+
+ /* We have a situation here.
+ We cannot just do ScreenUpdate(startup_screen_buffer) because
+ the luser could have changed screen dimensions inside Emacs
+ and failed (or didn't want) to restore them before killing
+ Emacs. ScreenUpdate() uses the *current* screen dimensions and
+ thus will happily use memory outside what was allocated for
+ `startup_screen_buffer'.
+ Thus we only restore as much as the current screen dimensions
+ can hold, and clear the rest (if the saved screen is smaller than
+ the current) with the color attribute saved at startup. The cursor
+ is also restored within the visible dimensions. */
+
+ ScreenAttrib = startup_screen_attrib;
+ ScreenClear ();
+
+ if (update_row_len > saved_row_len)
+ update_row_len = saved_row_len;
+ if (current_rows > startup_screen_size_Y)
+ current_rows = startup_screen_size_Y;
+
+ if (termscript)
+ fprintf (termscript, "<SCREEN RESTORED (dimensions=%dx%d)>\n",
+ update_row_len / 2, current_rows);
+
+ while (current_rows--)
+ {
+ dosmemput (saved_row, update_row_len, display_row_start);
+ saved_row += saved_row_len;
+ display_row_start += to_next_row;
+ }
+ if (startup_pos_X < cursor_pos_X)
+ cursor_pos_X = startup_pos_X;
+ if (startup_pos_Y < cursor_pos_Y)
+ cursor_pos_Y = startup_pos_Y;
+
+ ScreenSetCursor (cursor_pos_Y, cursor_pos_X);
+ xfree (startup_screen_buffer);
+
+ term_setup_done = 0;
+}
+
+static
+IT_set_terminal_window (void)
+{
+}
+
+void
+IT_set_frame_parameters (frame, alist)
+ FRAME_PTR frame;
+ Lisp_Object alist;
+{
+ Lisp_Object tail;
+ int redraw;
+ extern unsigned long load_color ();
+ FRAME_PTR f = (FRAME_PTR) &the_only_frame;
+
+ redraw = 0;
+ for (tail = alist; CONSP (tail); tail = Fcdr (tail))
+ {
+ Lisp_Object elt, prop, val;
+
+ elt = Fcar (tail);
+ prop = Fcar (elt);
+ val = Fcdr (elt);
+ CHECK_SYMBOL (prop, 1);
+
+ if (EQ (prop, intern ("foreground-color")))
+ {
+ unsigned long new_color = load_color (f, val);
+ if (new_color != ~0)
+ {
+ FRAME_FOREGROUND_PIXEL (f) = new_color;
+ redraw = 1;
+ }
+ }
+ else if (EQ (prop, intern ("background-color")))
+ {
+ unsigned long new_color = load_color (f, val);
+ if (new_color != ~0)
+ {
+ FRAME_BACKGROUND_PIXEL (f) = new_color & ~8;
+ redraw = 1;
+ }
+ }
+ else if (EQ (prop, intern ("menu-bar-lines")))
+ {
+ int new;
+ int old = FRAME_MENU_BAR_LINES (the_only_frame);
+
+ if (INTEGERP (val))
+ new = XINT (val);
+ else
+ new = 0;
+ FRAME_MENU_BAR_LINES (f) = new;
+ IT_set_menu_bar_lines (the_only_frame.root_window, new - old);
+ }
+ }
+
+ if (redraw)
+ {
+ recompute_basic_faces (f);
+ Fredraw_frame (Fselected_frame ());
+ }
+}
+
+#endif /* !HAVE_X_WINDOWS */
+
+
+/* Do we need the internal terminal? */
+void
+internal_terminal_init ()
+{
+ char *term = getenv ("TERM");
+ char *colors;
+
+#ifdef HAVE_X_WINDOWS
+ if (!inhibit_window_system)
+ return;
+#endif
+
+ internal_terminal
+ = (!noninteractive) && term && !strcmp (term, "internal");
+
+ if (getenv ("EMACSTEST"))
+ termscript = fopen (getenv ("EMACSTEST"), "wt");
+
+#ifndef HAVE_X_WINDOWS
+ if (!internal_terminal || inhibit_window_system)
+ {
+ the_only_frame.output_method = output_termcap;
+ return;
+ }
+
+ Vwindow_system = intern ("pc");
+ Vwindow_system_version = make_number (1);
+
+ bzero (&the_only_x_display, sizeof the_only_x_display);
+ the_only_x_display.background_pixel = 7; /* White */
+ the_only_x_display.foreground_pixel = 0; /* Black */
+ colors = getenv ("EMACSCOLORS");
+ if (colors && strlen (colors) >= 2)
+ {
+ the_only_x_display.foreground_pixel = colors[0] & 0x07;
+ the_only_x_display.background_pixel = colors[1] & 0x07;
+ }
+ the_only_x_display.line_height = 1;
+ the_only_frame.output_data.x = &the_only_x_display;
+ the_only_frame.output_method = output_msdos_raw;
+ the_only_x_display.font = (XFontStruct *)1; /* must *not* be zero */
+
+ init_frame_faces ((FRAME_PTR) &the_only_frame);
+
+ ring_bell_hook = IT_ring_bell;
+ write_glyphs_hook = IT_write_glyphs;
+ cursor_to_hook = raw_cursor_to_hook = IT_cursor_to;
+ clear_to_end_hook = IT_clear_to_end;
+ clear_end_of_line_hook = IT_clear_end_of_line;
+ clear_frame_hook = IT_clear_screen;
+ change_line_highlight_hook = IT_change_line_highlight;
+ update_begin_hook = IT_update_begin;
+ update_end_hook = IT_update_end;
+ reassert_line_highlight_hook = IT_reassert_line_highlight;
+
+ /* These hooks are called by term.c without being checked. */
+ set_terminal_modes_hook = IT_set_terminal_modes;
+ reset_terminal_modes_hook = IT_reset_terminal_modes;
+ set_terminal_window_hook = IT_set_terminal_window;
+#endif
+}
+
+dos_get_saved_screen (screen, rows, cols)
+ char **screen;
+ int *rows;
+ int *cols;
+{
+#ifndef HAVE_X_WINDOWS
+ *screen = startup_screen_buffer;
+ *cols = startup_screen_size_X;
+ *rows = startup_screen_size_Y;
+ return 1;
+#else
+ return 0;
+#endif
+}
+\f
+/* ----------------------- Keyboard control ----------------------
+ *
+ * Keymaps reflect the following keyboard layout:
+ *
+ * 0 1 2 3 4 5 6 7 8 9 10 11 12 BS
+ * TAB 15 16 17 18 19 20 21 22 23 24 25 26 (41)
+ * CLOK 30 31 32 33 34 35 36 37 38 39 40 (41) RET
+ * SH () 45 46 47 48 49 50 51 52 53 54 SHIFT
+ * SPACE
+ */
+
+static int extended_kbd; /* 101 (102) keyboard present. */
+
+struct dos_keyboard_map
+{
+ char *unshifted;
+ char *shifted;
+ char *alt_gr;
+};
+
+
+static struct dos_keyboard_map us_keyboard = {
+/* 0 1 2 3 4 5 */
+/* 01234567890123456789012345678901234567890 12345678901234 */
+ "`1234567890-= qwertyuiop[] asdfghjkl;'\\ zxcvbnm,./ ",
+/* 0123456789012345678901234567890123456789 012345678901234 */
+ "~!@#$%^&*()_+ QWERTYUIOP{} ASDFGHJKL:\"| ZXCVBNM<>? ",
+ 0 /* no Alt-Gr key */
+};
+
+static struct dos_keyboard_map fr_keyboard = {
+/* 0 1 2 3 4 5 */
+/* 012 3456789012345678901234567890123456789012345678901234 */
+ "ý&\82\",(-\8a_\80\85)= azertyuiop^$ qsdfghjklm\97* wxcvbnm;:! ",
+/* 0123456789012345678901234567890123456789012345678901234 */
+ " 1234567890ø+ AZERTYUIOPù\9c QSDFGHJKLM%æ WXCVBN?./õ ",
+/* 01234567 89012345678901234567890123456789012345678901234 */
+ " ~#{[|`\\^@]} Ï "
+};
+
+static struct dos_keyboard_map dk_keyboard = {
+/* 0 1 2 3 4 5 */
+/* 0123456789012345678901234567890123456789012345678901234 */
+ "«1234567890+| qwertyuiop\86~ asdfghjkl\91\9b' zxcvbnm,.- ",
+/* 01 23456789012345678901234567890123456789012345678901234 */
+ "õ!\"#$%&/()=?` QWERTYUIOP\8f^ ASDFGHJKL\92\9d* ZXCVBNM;:_ ",
+/* 0123456789012345678901234567890123456789012345678901234 */
+ " @\9c$ {[]} | "
+};
+
+static struct keyboard_layout_list
+{
+ int country_code;
+ struct dos_keyboard_map *keyboard_map;
+} keyboard_layout_list[] =
+{
+ 1, &us_keyboard,
+ 33, &fr_keyboard,
+ 45, &dk_keyboard
+};
+
+static struct dos_keyboard_map *keyboard;
+static int keyboard_map_all;
+
+int
+dos_set_keyboard (code, always)
+ int code;
+ int always;
+{
+ int i;
+
+ /* Initialize to US settings, for countries that don't have their own. */
+ keyboard = keyboard_layout_list[0].keyboard_map;
+ keyboard_map_all = always;
+ dos_keyboard_layout = 1;
+
+ for (i = 0; i < (sizeof (keyboard_layout_list)/sizeof (struct keyboard_layout_list)); i++)
+ if (code == keyboard_layout_list[i].country_code)
+ {
+ keyboard = keyboard_layout_list[i].keyboard_map;
+ keyboard_map_all = always;
+ dos_keyboard_layout = code;
+ return 1;
+ }
+ return 0;
+}
+\f
+#define Ignore 0x0000
+#define Normal 0x0000 /* normal key - alt changes scan-code */
+#define FctKey 0x1000 /* func key if c == 0, else c */
+#define Special 0x2000 /* func key even if c != 0 */
+#define ModFct 0x3000 /* special if mod-keys, else 'c' */
+#define Map 0x4000 /* alt scan-code, map to unshift/shift key */
+#define KeyPad 0x5000 /* map to insert/kp-0 depending on c == 0xe0 */
+#define Grey 0x6000 /* Grey keypad key */
+
+#define Alt 0x0100 /* alt scan-code */
+#define Ctrl 0x0200 /* ctrl scan-code */
+#define Shift 0x0400 /* shift scan-code */
+
+static struct
+{
+ unsigned char char_code; /* normal code */
+ unsigned char meta_code; /* M- code */
+ unsigned char keypad_code; /* keypad code */
+ unsigned char editkey_code; /* edit key */
+} keypad_translate_map[] = {
+ '0', '0', 0xb0, /* kp-0 */ 0x63, /* insert */
+ '1', '1', 0xb1, /* kp-1 */ 0x57, /* end */
+ '2', '2', 0xb2, /* kp-2 */ 0x54, /* down */
+ '3', '3', 0xb3, /* kp-3 */ 0x56, /* next */
+ '4', '4', 0xb4, /* kp-4 */ 0x51, /* left */
+ '5', '5', 0xb5, /* kp-5 */ 0xb5, /* kp-5 */
+ '6', '6', 0xb6, /* kp-6 */ 0x53, /* right */
+ '7', '7', 0xb7, /* kp-7 */ 0x50, /* home */
+ '8', '8', 0xb8, /* kp-8 */ 0x52, /* up */
+ '9', '9', 0xb9, /* kp-9 */ 0x55, /* prior */
+ '.', '-', 0xae, /* kp-decimal */ 0xff /* delete */
+};
+
+static struct
+{
+ unsigned char char_code; /* normal code */
+ unsigned char keypad_code; /* keypad code */
+} grey_key_translate_map[] = {
+ '/', 0xaf, /* kp-decimal */
+ '*', 0xaa, /* kp-multiply */
+ '-', 0xad, /* kp-subtract */
+ '+', 0xab, /* kp-add */
+ '\r', 0x8d /* kp-enter */
+};
+
+static unsigned short
+ibmpc_translate_map[] =
+{
+ /* --------------- 00 to 0f --------------- */
+ Normal | 0xff, /* Ctrl Break + Alt-NNN */
+ Alt | ModFct | 0x1b, /* Escape */
+ Normal | 1, /* '1' */
+ Normal | 2, /* '2' */
+ Normal | 3, /* '3' */
+ Normal | 4, /* '4' */
+ Normal | 5, /* '5' */
+ Normal | 6, /* '6' */
+ Normal | 7, /* '7' */
+ Normal | 8, /* '8' */
+ Normal | 9, /* '9' */
+ Normal | 10, /* '0' */
+ Normal | 11, /* '-' */
+ Normal | 12, /* '=' */
+ Special | 0x08, /* Backspace */
+ ModFct | 0x74, /* Tab/Backtab */
+
+ /* --------------- 10 to 1f --------------- */
+ Map | 15, /* 'q' */
+ Map | 16, /* 'w' */
+ Map | 17, /* 'e' */
+ Map | 18, /* 'r' */
+ Map | 19, /* 't' */
+ Map | 20, /* 'y' */
+ Map | 21, /* 'u' */
+ Map | 22, /* 'i' */
+ Map | 23, /* 'o' */
+ Map | 24, /* 'p' */
+ Map | 25, /* '[' */
+ Map | 26, /* ']' */
+ ModFct | 0x0d, /* Return */
+ Ignore, /* Ctrl */
+ Map | 30, /* 'a' */
+ Map | 31, /* 's' */
+
+ /* --------------- 20 to 2f --------------- */
+ Map | 32, /* 'd' */
+ Map | 33, /* 'f' */
+ Map | 34, /* 'g' */
+ Map | 35, /* 'h' */
+ Map | 36, /* 'j' */
+ Map | 37, /* 'k' */
+ Map | 38, /* 'l' */
+ Map | 39, /* ';' */
+ Map | 40, /* '\'' */
+ Map | 0, /* '`' */
+ Ignore, /* Left shift */
+ Map | 41, /* '\\' */
+ Map | 45, /* 'z' */
+ Map | 46, /* 'x' */
+ Map | 47, /* 'c' */
+ Map | 48, /* 'v' */
+
+ /* --------------- 30 to 3f --------------- */
+ Map | 49, /* 'b' */
+ Map | 50, /* 'n' */
+ Map | 51, /* 'm' */
+ Map | 52, /* ',' */
+ Map | 53, /* '.' */
+ Map | 54, /* '/' */
+ Ignore, /* Right shift */
+ Grey | 1, /* Grey * */
+ Ignore, /* Alt */
+ Normal | ' ', /* ' ' */
+ Ignore, /* Caps Lock */
+ FctKey | 0xbe, /* F1 */
+ FctKey | 0xbf, /* F2 */
+ FctKey | 0xc0, /* F3 */
+ FctKey | 0xc1, /* F4 */
+ FctKey | 0xc2, /* F5 */
+
+ /* --------------- 40 to 4f --------------- */
+ FctKey | 0xc3, /* F6 */
+ FctKey | 0xc4, /* F7 */
+ FctKey | 0xc5, /* F8 */
+ FctKey | 0xc6, /* F9 */
+ FctKey | 0xc7, /* F10 */
+ Ignore, /* Num Lock */
+ Ignore, /* Scroll Lock */
+ KeyPad | 7, /* Home */
+ KeyPad | 8, /* Up */
+ KeyPad | 9, /* Page Up */
+ Grey | 2, /* Grey - */
+ KeyPad | 4, /* Left */
+ KeyPad | 5, /* Keypad 5 */
+ KeyPad | 6, /* Right */
+ Grey | 3, /* Grey + */
+ KeyPad | 1, /* End */
+
+ /* --------------- 50 to 5f --------------- */
+ KeyPad | 2, /* Down */
+ KeyPad | 3, /* Page Down */
+ KeyPad | 0, /* Insert */
+ KeyPad | 10, /* Delete */
+ Shift | FctKey | 0xbe, /* (Shift) F1 */
+ Shift | FctKey | 0xbf, /* (Shift) F2 */
+ Shift | FctKey | 0xc0, /* (Shift) F3 */
+ Shift | FctKey | 0xc1, /* (Shift) F4 */
+ Shift | FctKey | 0xc2, /* (Shift) F5 */
+ Shift | FctKey | 0xc3, /* (Shift) F6 */
+ Shift | FctKey | 0xc4, /* (Shift) F7 */
+ Shift | FctKey | 0xc5, /* (Shift) F8 */
+ Shift | FctKey | 0xc6, /* (Shift) F9 */
+ Shift | FctKey | 0xc7, /* (Shift) F10 */
+ Ctrl | FctKey | 0xbe, /* (Ctrl) F1 */
+ Ctrl | FctKey | 0xbf, /* (Ctrl) F2 */
+
+ /* --------------- 60 to 6f --------------- */
+ Ctrl | FctKey | 0xc0, /* (Ctrl) F3 */
+ Ctrl | FctKey | 0xc1, /* (Ctrl) F4 */
+ Ctrl | FctKey | 0xc2, /* (Ctrl) F5 */
+ Ctrl | FctKey | 0xc3, /* (Ctrl) F6 */
+ Ctrl | FctKey | 0xc4, /* (Ctrl) F7 */
+ Ctrl | FctKey | 0xc5, /* (Ctrl) F8 */
+ Ctrl | FctKey | 0xc6, /* (Ctrl) F9 */
+ Ctrl | FctKey | 0xc7, /* (Ctrl) F10 */
+ Alt | FctKey | 0xbe, /* (Alt) F1 */
+ Alt | FctKey | 0xbf, /* (Alt) F2 */
+ Alt | FctKey | 0xc0, /* (Alt) F3 */
+ Alt | FctKey | 0xc1, /* (Alt) F4 */
+ Alt | FctKey | 0xc2, /* (Alt) F5 */
+ Alt | FctKey | 0xc3, /* (Alt) F6 */
+ Alt | FctKey | 0xc4, /* (Alt) F7 */
+ Alt | FctKey | 0xc5, /* (Alt) F8 */
+
+ /* --------------- 70 to 7f --------------- */
+ Alt | FctKey | 0xc6, /* (Alt) F9 */
+ Alt | FctKey | 0xc7, /* (Alt) F10 */
+ Ctrl | FctKey | 0x6d, /* (Ctrl) Sys Rq */
+ Ctrl | KeyPad | 4, /* (Ctrl) Left */
+ Ctrl | KeyPad | 6, /* (Ctrl) Right */
+ Ctrl | KeyPad | 1, /* (Ctrl) End */
+ Ctrl | KeyPad | 3, /* (Ctrl) Page Down */
+ Ctrl | KeyPad | 7, /* (Ctrl) Home */
+ Alt | Map | 1, /* '1' */
+ Alt | Map | 2, /* '2' */
+ Alt | Map | 3, /* '3' */
+ Alt | Map | 4, /* '4' */
+ Alt | Map | 5, /* '5' */
+ Alt | Map | 6, /* '6' */
+ Alt | Map | 7, /* '7' */
+ Alt | Map | 8, /* '8' */
+
+ /* --------------- 80 to 8f --------------- */
+ Alt | Map | 9, /* '9' */
+ Alt | Map | 10, /* '0' */
+ Alt | Map | 11, /* '-' */
+ Alt | Map | 12, /* '=' */
+ Ctrl | KeyPad | 9, /* (Ctrl) Page Up */
+ FctKey | 0xc8, /* F11 */
+ FctKey | 0xc9, /* F12 */
+ Shift | FctKey | 0xc8, /* (Shift) F11 */
+ Shift | FctKey | 0xc9, /* (Shift) F12 */
+ Ctrl | FctKey | 0xc8, /* (Ctrl) F11 */
+ Ctrl | FctKey | 0xc9, /* (Ctrl) F12 */
+ Alt | FctKey | 0xc8, /* (Alt) F11 */
+ Alt | FctKey | 0xc9, /* (Alt) F12 */
+ Ctrl | KeyPad | 8, /* (Ctrl) Up */
+ Ctrl | Grey | 2, /* (Ctrl) Grey - */
+ Ctrl | KeyPad | 5, /* (Ctrl) Keypad 5 */
+
+ /* --------------- 90 to 9f --------------- */
+ Ctrl | Grey | 3, /* (Ctrl) Grey + */
+ Ctrl | KeyPad | 2, /* (Ctrl) Down */
+ Ctrl | KeyPad | 0, /* (Ctrl) Insert */
+ Ctrl | KeyPad | 10, /* (Ctrl) Delete */
+ Ctrl | FctKey | 0x09, /* (Ctrl) Tab */
+ Ctrl | Grey | 0, /* (Ctrl) Grey / */
+ Ctrl | Grey | 1, /* (Ctrl) Grey * */
+ Alt | FctKey | 0x50, /* (Alt) Home */
+ Alt | FctKey | 0x52, /* (Alt) Up */
+ Alt | FctKey | 0x55, /* (Alt) Page Up */
+ Ignore, /* NO KEY */
+ Alt | FctKey | 0x51, /* (Alt) Left */
+ Ignore, /* NO KEY */
+ Alt | FctKey | 0x53, /* (Alt) Right */
+ Ignore, /* NO KEY */
+ Alt | FctKey | 0x57, /* (Alt) End */
+
+ /* --------------- a0 to af --------------- */
+ Alt | KeyPad | 2, /* (Alt) Down */
+ Alt | KeyPad | 3, /* (Alt) Page Down */
+ Alt | KeyPad | 0, /* (Alt) Insert */
+ Alt | KeyPad | 10, /* (Alt) Delete */
+ Alt | Grey | 0, /* (Alt) Grey / */
+ Alt | FctKey | 0x09, /* (Alt) Tab */
+ Alt | Grey | 4 /* (Alt) Keypad Enter */
+};
+\f
+/* These bit-positions corresponds to values returned by BIOS */
+#define SHIFT_P 0x0003 /* two bits! */
+#define CTRL_P 0x0004
+#define ALT_P 0x0008
+#define SCRLOCK_P 0x0010
+#define NUMLOCK_P 0x0020
+#define CAPSLOCK_P 0x0040
+#define ALT_GR_P 0x0800
+#define SUPER_P 0x4000 /* pseudo */
+#define HYPER_P 0x8000 /* pseudo */
+
+static int
+dos_get_modifiers (keymask)
+ int *keymask;
+{
+ union REGS regs;
+ int mask;
+ int modifiers = 0;
+
+ /* Calculate modifier bits */
+ regs.h.ah = extended_kbd ? 0x12 : 0x02;
+ int86 (0x16, ®s, ®s);
+
+ if (!extended_kbd)
+ {
+ mask = regs.h.al & (SHIFT_P | CTRL_P | ALT_P |
+ SCRLOCK_P | NUMLOCK_P | CAPSLOCK_P);
+ }
+ else
+ {
+ mask = regs.h.al & (SHIFT_P |
+ SCRLOCK_P | NUMLOCK_P | CAPSLOCK_P);
+
+ /* Do not break international keyboard support. */
+ /* When Keyb.Com is loaded, the right Alt key is */
+ /* used for accessing characters like { and } */
+ if (regs.h.ah & 2) /* Left ALT pressed ? */
+ mask |= ALT_P;
+
+ if ((regs.h.ah & 8) != 0) /* Right ALT pressed ? */
+ {
+ mask |= ALT_GR_P;
+ if (dos_hyper_key == 1)
+ {
+ mask |= HYPER_P;
+ modifiers |= hyper_modifier;
+ }
+ else if (dos_super_key == 1)
+ {
+ mask |= SUPER_P;
+ modifiers |= super_modifier;
+ }
+ }
+
+ if (regs.h.ah & 1) /* Left CTRL pressed
+ mask |= CTRL_P;
+
+ if (regs.h.ah & 4) /* Right CTRL pressed ? */
+ {
+ if (dos_hyper_key == 2)
+ {
+ mask |= HYPER_P;
+ modifiers |= hyper_modifier;
+ }
+ else if (dos_super_key == 2)
+ {
+ mask |= SUPER_P;
+ modifiers |= super_modifier;
+ }
+ else
+ mask |= CTRL_P;
+ }
+ }
+
+ if (mask & SHIFT_P)
+ modifiers |= shift_modifier;
+ if (mask & CTRL_P)
+ modifiers |= ctrl_modifier;
+ if (mask & ALT_P)
+ modifiers |= meta_modifier;
+
+ if (keymask)
+ *keymask = mask;
+ return modifiers;
+}
+
+#define NUM_RECENT_DOSKEYS (100)
+int recent_doskeys_index; /* Index for storing next element into recent_doskeys */
+int total_doskeys; /* Total number of elements stored into recent_doskeys */
+Lisp_Object recent_doskeys; /* A vector, holding the last 100 keystrokes */
+
+DEFUN ("recent-doskeys", Frecent_doskeys, Srecent_doskeys, 0, 0, 0,
+ "Return vector of last 100 keyboard input values seen in dos_rawgetc.\n\
+Each input key receives two values in this vector: first the ASCII code,\n\
+and then the scan code.")
+ ()
+{
+ Lisp_Object *keys = XVECTOR (recent_doskeys)->contents;
+ Lisp_Object val;
+
+ if (total_doskeys < NUM_RECENT_DOSKEYS)
+ return Fvector (total_doskeys, keys);
+ else
+ {
+ val = Fvector (NUM_RECENT_DOSKEYS, keys);
+ bcopy (keys + recent_doskeys_index,
+ XVECTOR (val)->contents,
+ (NUM_RECENT_DOSKEYS - recent_doskeys_index) * sizeof (Lisp_Object));
+ bcopy (keys,
+ XVECTOR (val)->contents + NUM_RECENT_DOSKEYS - recent_doskeys_index,
+ recent_doskeys_index * sizeof (Lisp_Object));
+ return val;
+ }
+}
+
+/* Get a char from keyboard. Function keys are put into the event queue. */
+static int
+dos_rawgetc ()
+{
+ struct input_event event;
+ union REGS regs;
+
+#ifndef HAVE_X_WINDOWS
+ SCREEN_SET_CURSOR ();
+ if (!mouse_visible) mouse_on ();
+#endif
+
+ /* The following condition is equivalent to `kbhit ()', except that
+ it uses the bios to do its job. This pleases DESQview/X. */
+ while ((regs.h.ah = extended_kbd ? 0x11 : 0x01),
+ int86 (0x16, ®s, ®s),
+ (regs.x.flags & 0x40) == 0)
+ {
+ union REGS regs;
+ register unsigned char c;
+ int sc, code, mask, kp_mode;
+ int modifiers;
+
+ regs.h.ah = extended_kbd ? 0x10 : 0x00;
+ int86 (0x16, ®s, ®s);
+ c = regs.h.al;
+ sc = regs.h.ah;
+
+ total_doskeys += 2;
+ XVECTOR (recent_doskeys)->contents[recent_doskeys_index++]
+ = make_number (c);
+ if (recent_doskeys_index == NUM_RECENT_DOSKEYS)
+ recent_doskeys_index = 0;
+ XVECTOR (recent_doskeys)->contents[recent_doskeys_index++]
+ = make_number (sc);
+ if (recent_doskeys_index == NUM_RECENT_DOSKEYS)
+ recent_doskeys_index = 0;
+
+ modifiers = dos_get_modifiers (&mask);
+
+#ifndef HAVE_X_WINDOWS
+ if (!NILP (Vdos_display_scancodes))
+ {
+ char buf[10];
+ sprintf (buf, "%02x:%02x*%04x",
+ (unsigned) (sc&0xff), (unsigned) c, mask);
+ dos_direct_output (screen_size_Y - 2, screen_size_X - 12, buf, 10);
+ }
+#endif
+
+ if (sc == 0xe0)
+ {
+ switch (c)
+ {
+ case 10: /* Ctrl Grey Enter */
+ code = Ctrl | Grey | 4;
+ break;
+ case 13: /* Grey Enter */
+ code = Grey | 4;
+ break;
+ case '/': /* Grey / */
+ code = Grey | 0;
+ break;
+ default:
+ continue;
+ };
+ c = 0;
+ }
+ else
+ {
+ if (sc >= (sizeof (ibmpc_translate_map) / sizeof (short)))
+ continue;
+ if ((code = ibmpc_translate_map[sc]) == Ignore)
+ continue;
+ }
+
+ if (c == 0)
+ {
+ if (code & Alt)
+ modifiers |= meta_modifier;
+ if (code & Ctrl)
+ modifiers |= ctrl_modifier;
+ if (code & Shift)
+ modifiers |= shift_modifier;
+ }
+
+ switch (code & 0xf000)
+ {
+ case ModFct:
+ if (c && !(mask & (SHIFT_P | ALT_P | CTRL_P | HYPER_P | SUPER_P)))
+ return c;
+ c = 0; /* Special */
+
+ case FctKey:
+ if (c != 0)
+ return c;
+
+ case Special:
+ code |= 0xff00;
+ break;
+
+ case Normal:
+ if (sc == 0)
+ {
+ if (c == 0) /* ctrl-break */
+ continue;
+ return c; /* ALT-nnn */
+ }
+ if (!keyboard_map_all)
+ {
+ if (c != ' ')
+ return c;
+ code = c;
+ break;
+ }
+
+ case Map:
+ if (c && !(mask & ALT_P) && !((mask & SHIFT_P) && (mask & CTRL_P)))
+ if (!keyboard_map_all)
+ return c;
+
+ code &= 0xff;
+ if (mask & ALT_P && code <= 10 && code > 0 && dos_keypad_mode & 0x200)
+ mask |= SHIFT_P; /* ALT-1 => M-! etc. */
+
+ if (mask & SHIFT_P)
+ {
+ code = keyboard->shifted[code];
+ mask -= SHIFT_P;
+ modifiers &= ~shift_modifier;
+ }
+ else
+ if ((mask & ALT_GR_P) && keyboard->alt_gr && keyboard->alt_gr[code] != ' ')
+ code = keyboard->alt_gr[code];
+ else
+ code = keyboard->unshifted[code];
+ break;
+
+ case KeyPad:
+ code &= 0xff;
+ if (c == 0xe0) /* edit key */
+ kp_mode = 3;
+ else
+ if ((mask & (NUMLOCK_P|CTRL_P|SHIFT_P|ALT_P)) == NUMLOCK_P) /* numlock on */
+ kp_mode = dos_keypad_mode & 0x03;
+ else
+ kp_mode = (dos_keypad_mode >> 4) & 0x03;
+
+ switch (kp_mode)
+ {
+ case 0:
+ if (code == 10 && dos_decimal_point)
+ return dos_decimal_point;
+ return keypad_translate_map[code].char_code;
+
+ case 1:
+ code = 0xff00 | keypad_translate_map[code].keypad_code;
+ break;
+
+ case 2:
+ code = keypad_translate_map[code].meta_code;
+ modifiers = meta_modifier;
+ break;
+
+ case 3:
+ code = 0xff00 | keypad_translate_map[code].editkey_code;
+ break;
+ }
+ break;
+
+ case Grey:
+ code &= 0xff;
+ kp_mode = ((mask & (NUMLOCK_P|CTRL_P|SHIFT_P|ALT_P)) == NUMLOCK_P) ? 0x04 : 0x40;
+ if (dos_keypad_mode & kp_mode)
+ code = 0xff00 | grey_key_translate_map[code].keypad_code;
+ else
+ code = grey_key_translate_map[code].char_code;
+ break;
+ }
+
+ make_event:
+ if (code == 0)
+ continue;
+
+ if (code >= 0x100)
+ event.kind = non_ascii_keystroke;
+ else
+ event.kind = ascii_keystroke;
+ event.code = code;
+ event.modifiers = modifiers;
+ XSETFRAME (event.frame_or_window, selected_frame);
+ event.timestamp = event_timestamp ();
+ kbd_buffer_store_event (&event);
+ }
+
+ if (have_mouse > 0)
+ {
+ int but, press, x, y, ok;
+
+ /* Check for mouse movement *before* buttons. */
+ mouse_check_moved ();
+
+ for (but = 0; but < NUM_MOUSE_BUTTONS; but++)
+ for (press = 0; press < 2; press++)
+ {
+ if (press)
+ ok = mouse_pressed (but, &x, &y);
+ else
+ ok = mouse_released (but, &x, &y);
+ if (ok)
+ {
+ event.kind = mouse_click;
+ event.code = but;
+ event.modifiers = dos_get_modifiers (0)
+ | (press ? down_modifier : up_modifier);
+ event.x = x;
+ event.y = y;
+ XSETFRAME (event.frame_or_window, selected_frame);
+ event.timestamp = event_timestamp ();
+ kbd_buffer_store_event (&event);
+ }
+ }
+ }
+
+ return -1;
+}
+
+static int prev_get_char = -1;
+
+/* Return 1 if a key is ready to be read without suspending execution. */
+dos_keysns ()
+{
+ if (prev_get_char != -1)
+ return 1;
+ else
+ return ((prev_get_char = dos_rawgetc ()) != -1);
+}
+
+/* Read a key. Return -1 if no key is ready. */
+dos_keyread ()
+{
+ if (prev_get_char != -1)
+ {
+ int c = prev_get_char;
+ prev_get_char = -1;
+ return c;
+ }
+ else
+ return dos_rawgetc ();
+}
+\f
+#ifndef HAVE_X_WINDOWS
+/* See xterm.c for more info. */
+void
+pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip)
+ FRAME_PTR f;
+ register int pix_x, pix_y;
+ register int *x, *y;
+ void /* XRectangle */ *bounds;
+ int noclip;
+{
+ if (bounds) abort ();
+
+ /* Ignore clipping. */
+
+ *x = pix_x;
+ *y = pix_y;
+}
+
+void
+glyph_to_pixel_coords (f, x, y, pix_x, pix_y)
+ FRAME_PTR f;
+ register int x, y;
+ register int *pix_x, *pix_y;
+{
+ *pix_x = x;
+ *pix_y = y;
+}
+\f
+/* Simulation of X's menus. Nothing too fancy here -- just make it work
+ for now.
+
+ Actually, I don't know the meaning of all the parameters of the functions
+ here -- I only know how they are called by xmenu.c. I could of course
+ grab the nearest Xlib manual (down the hall, second-to-last door on the
+ left), but I don't think it's worth the effort. */
+
+static XMenu *
+IT_menu_create ()
+{
+ XMenu *menu;
+
+ menu = (XMenu *) xmalloc (sizeof (XMenu));
+ menu->allocated = menu->count = menu->panecount = menu->width = 0;
+ return menu;
+}
+
+/* Allocate some (more) memory for MENU ensuring that there is room for one
+ for item. */
+
+static void
+IT_menu_make_room (XMenu *menu)
+{
+ if (menu->allocated == 0)
+ {
+ int count = menu->allocated = 10;
+ menu->text = (char **) xmalloc (count * sizeof (char *));
+ menu->submenu = (XMenu **) xmalloc (count * sizeof (XMenu *));
+ menu->panenumber = (int *) xmalloc (count * sizeof (int));
+ }
+ else if (menu->allocated == menu->count)
+ {
+ int count = menu->allocated = menu->allocated + 10;
+ menu->text
+ = (char **) xrealloc (menu->text, count * sizeof (char *));
+ menu->submenu
+ = (XMenu **) xrealloc (menu->submenu, count * sizeof (XMenu *));
+ menu->panenumber
+ = (int *) xrealloc (menu->panenumber, count * sizeof (int));
+ }
+}
+
+/* Search the given menu structure for a given pane number. */
+
+static XMenu *
+IT_menu_search_pane (XMenu *menu, int pane)
+{
+ int i;
+ XMenu *try;
+
+ for (i = 0; i < menu->count; i++)
+ if (menu->submenu[i])
+ {
+ if (pane == menu->panenumber[i])
+ return menu->submenu[i];
+ if ((try = IT_menu_search_pane (menu->submenu[i], pane)))
+ return try;
+ }
+ return (XMenu *) 0;
+}
+
+/* Determine how much screen space a given menu needs. */
+
+static void
+IT_menu_calc_size (XMenu *menu, int *width, int *height)
+{
+ int i, h2, w2, maxsubwidth, maxheight;
+
+ maxsubwidth = 0;
+ maxheight = menu->count;
+ for (i = 0; i < menu->count; i++)
+ {
+ if (menu->submenu[i])
+ {
+ IT_menu_calc_size (menu->submenu[i], &w2, &h2);
+ if (w2 > maxsubwidth) maxsubwidth = w2;
+ if (i + h2 > maxheight) maxheight = i + h2;
+ }
+ }
+ *width = menu->width + maxsubwidth;
+ *height = maxheight;
+}
+
+/* Display MENU at (X,Y) using FACES. */
+
+static void
+IT_menu_display (XMenu *menu, int y, int x, int *faces)
+{
+ int i, j, face, width;
+ GLYPH *text, *p;
+ char *q;
+ int mx, my;
+ int enabled, mousehere;
+ int row, col;
+
+ width = menu->width;
+ text = (GLYPH *) xmalloc ((width + 2) * sizeof (GLYPH));
+ ScreenGetCursor (&row, &col);
+ mouse_get_xy (&mx, &my);
+ IT_update_begin ();
+ for (i = 0; i < menu->count; i++)
+ {
+ IT_cursor_to (y + i, x);
+ enabled
+ = (!menu->submenu[i] && menu->panenumber[i]) || (menu->submenu[i]);
+ mousehere = (y + i == my && x <= mx && mx < x + width + 2);
+ face = faces[enabled + mousehere * 2];
+ p = text;
+ *p++ = FAST_MAKE_GLYPH (' ', face);
+ for (j = 0, q = menu->text[i]; *q; j++)
+ *p++ = FAST_MAKE_GLYPH (*q++, face);
+ for (; j < width; j++)
+ *p++ = FAST_MAKE_GLYPH (' ', face);
+ *p++ = FAST_MAKE_GLYPH (menu->submenu[i] ? 16 : ' ', face);
+ IT_write_glyphs (text, width + 2);
+ }
+ IT_update_end ();
+ IT_cursor_to (row, col);
+ xfree (text);
+}
+\f
+/* --------------------------- X Menu emulation ---------------------- */
+
+/* Report availability of menus. */
+
+int
+have_menus_p ()
+{
+ return 1;
+}
+
+/* Create a brand new menu structure. */
+
+XMenu *
+XMenuCreate (Display *foo1, Window foo2, char *foo3)
+{
+ return IT_menu_create ();
+}
+
+/* Create a new pane and place it on the outer-most level. It is not
+ clear that it should be placed out there, but I don't know what else
+ to do. */
+
+int
+XMenuAddPane (Display *foo, XMenu *menu, char *txt, int enable)
+{
+ int len;
+
+ if (!enable)
+ abort ();
+
+ IT_menu_make_room (menu);
+ menu->submenu[menu->count] = IT_menu_create ();
+ menu->text[menu->count] = txt;
+ menu->panenumber[menu->count] = ++menu->panecount;
+ menu->count++;
+ if ((len = strlen (txt)) > menu->width)
+ menu->width = len;
+ return menu->panecount;
+}
+
+/* Create a new item in a menu pane. */
+
+int
+XMenuAddSelection (Display *bar, XMenu *menu, int pane,
+ int foo, char *txt, int enable)
+{
+ int len;
+
+ if (pane)
+ if (!(menu = IT_menu_search_pane (menu, pane)))
+ return XM_FAILURE;
+ IT_menu_make_room (menu);
+ menu->submenu[menu->count] = (XMenu *) 0;
+ menu->text[menu->count] = txt;
+ menu->panenumber[menu->count] = enable;
+ menu->count++;
+ if ((len = strlen (txt)) > menu->width)
+ menu->width = len;
+ return XM_SUCCESS;
+}
+
+/* Decide where the menu would be placed if requested at (X,Y). */
+
+void
+XMenuLocate (Display *foo0, XMenu *menu, int foo1, int foo2, int x, int y,
+ int *ulx, int *uly, int *width, int *height)
+{
+ IT_menu_calc_size (menu, width, height);
+ *ulx = x + 1;
+ *uly = y;
+ *width += 2;
+}
+
+struct IT_menu_state
+{
+ void *screen_behind;
+ XMenu *menu;
+ int pane;
+ int x, y;
+};
+
+
+/* Display menu, wait for user's response, and return that response. */
+
+int
+XMenuActivate (Display *foo, XMenu *menu, int *pane, int *selidx,
+ int x0, int y0, unsigned ButtonMask, char **txt)
+{
+ struct IT_menu_state *state;
+ int statecount;
+ int x, y, i, b;
+ int screensize;
+ int faces[4], selectface;
+ int leave, result, onepane;
+ int title_faces[4]; /* face to display the menu title */
+
+ /* Just in case we got here without a mouse present... */
+ if (have_mouse <= 0)
+ return XM_IA_SELECT;
+
+ state = alloca (menu->panecount * sizeof (struct IT_menu_state));
+ screensize = screen_size * 2;
+ faces[0]
+ = compute_glyph_face (&the_only_frame,
+ face_name_id_number
+ (&the_only_frame,
+ intern ("msdos-menu-passive-face")),
+ 0);
+ faces[1]
+ = compute_glyph_face (&the_only_frame,
+ face_name_id_number
+ (&the_only_frame,
+ intern ("msdos-menu-active-face")),
+ 0);
+ selectface
+ = face_name_id_number (&the_only_frame, intern ("msdos-menu-select-face"));
+ faces[2] = compute_glyph_face (&the_only_frame, selectface, faces[0]);
+ faces[3] = compute_glyph_face (&the_only_frame, selectface, faces[1]);
+
+ /* Make sure the menu title is always displayed with
+ `msdos-menu-active-face', no matter where the mouse pointer is. */
+ for (i = 0; i < 4; i++)
+ title_faces[i] = faces[3];
+
+ statecount = 1;
+ state[0].menu = menu;
+ mouse_off ();
+ ScreenRetrieve (state[0].screen_behind = xmalloc (screensize));
+
+ IT_menu_display (menu, y0 - 1, x0 - 1, title_faces); /* display menu title */
+ if ((onepane = menu->count == 1 && menu->submenu[0]))
+ {
+ menu->width = menu->submenu[0]->width;
+ state[0].menu = menu->submenu[0];
+ }
+ else
+ {
+ state[0].menu = menu;
+ }
+ state[0].x = x0 - 1;
+ state[0].y = y0;
+ state[0].pane = onepane;
+
+ mouse_last_x = -1; /* A hack that forces display. */
+ leave = 0;
+ while (!leave)
+ {
+ if (!mouse_visible) mouse_on ();
+ mouse_check_moved ();
+ if (selected_frame->mouse_moved)
+ {
+ selected_frame->mouse_moved = 0;
+ result = XM_IA_SELECT;
+ mouse_get_xy (&x, &y);
+ for (i = 0; i < statecount; i++)
+ if (state[i].x <= x && x < state[i].x + state[i].menu->width + 2)
+ {
+ int dy = y - state[i].y;
+ if (0 <= dy && dy < state[i].menu->count)
+ {
+ if (!state[i].menu->submenu[dy])
+ if (state[i].menu->panenumber[dy])
+ result = XM_SUCCESS;
+ else
+ result = XM_IA_SELECT;
+ *pane = state[i].pane - 1;
+ *selidx = dy;
+ /* We hit some part of a menu, so drop extra menus that
+ have been opened. That does not include an open and
+ active submenu. */
+ if (i != statecount - 2
+ || state[i].menu->submenu[dy] != state[i+1].menu)
+ while (i != statecount - 1)
+ {
+ statecount--;
+ mouse_off ();
+ ScreenUpdate (state[statecount].screen_behind);
+ xfree (state[statecount].screen_behind);
+ }
+ if (i == statecount - 1 && state[i].menu->submenu[dy])
+ {
+ IT_menu_display (state[i].menu,
+ state[i].y,
+ state[i].x,
+ faces);
+ state[statecount].menu = state[i].menu->submenu[dy];
+ state[statecount].pane = state[i].menu->panenumber[dy];
+ mouse_off ();
+ ScreenRetrieve (state[statecount].screen_behind
+ = xmalloc (screensize));
+ state[statecount].x
+ = state[i].x + state[i].menu->width + 2;
+ state[statecount].y = y;
+ statecount++;
+ }
+ }
+ }
+ IT_menu_display (state[statecount - 1].menu,
+ state[statecount - 1].y,
+ state[statecount - 1].x,
+ faces);
+ }
+ for (b = 0; b < mouse_button_count; b++)
+ {
+ (void) mouse_pressed (b, &x, &y);
+ if (mouse_released (b, &x, &y))
+ leave = 1;
+ }
+ }
+
+ mouse_off ();
+ ScreenUpdate (state[0].screen_behind);
+ while (statecount--)
+ xfree (state[statecount].screen_behind);
+ return result;
+}
+
+/* Dispose of a menu. */
+
+void
+XMenuDestroy (Display *foo, XMenu *menu)
+{
+ int i;
+ if (menu->allocated)
+ {
+ for (i = 0; i < menu->count; i++)
+ if (menu->submenu[i])
+ XMenuDestroy (foo, menu->submenu[i]);
+ xfree (menu->text);
+ xfree (menu->submenu);
+ xfree (menu->panenumber);
+ }
+ xfree (menu);
+}
+
+int
+x_pixel_width (struct frame *f)
+{
+ return FRAME_WIDTH (f);
+}
+
+int
+x_pixel_height (struct frame *f)
+{
+ return FRAME_HEIGHT (f);
+}
+#endif /* !HAVE_X_WINDOWS */
+\f
+/* ----------------------- DOS / UNIX conversion --------------------- */
+
+/* Destructively turn backslashes into slashes. */
+
+void
+dostounix_filename (p)
+ register char *p;
+{
+ while (*p)
+ {
+ if (*p == '\\')
+ *p = '/';
+ p++;
+ }
+}
+
+/* Destructively turn slashes into backslashes. */
+
+void
+unixtodos_filename (p)
+ register char *p;
+{
+ while (*p)
+ {
+ if (*p == '/')
+ *p = '\\';
+ p++;
+ }
+}
+
+/* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
+
+int
+getdefdir (drive, dst)
+ int drive;
+ char *dst;
+{
+ union REGS regs;
+
+ *dst++ = '/';
+ regs.h.dl = drive;
+ regs.x.si = (int) dst;
+ regs.h.ah = 0x47;
+ intdos (®s, ®s);
+ return !regs.x.cflag;
+}
+
+/* Remove all CR's that are followed by a LF. */
+
+int
+crlf_to_lf (n, buf)
+ register int n;
+ register unsigned char *buf;
+{
+ unsigned char *np = buf;
+ unsigned char *startp = buf;
+ unsigned char *endp = buf + n;
+ unsigned char c;
+
+ if (n == 0)
+ return n;
+ while (buf < endp - 1)
+ {
+ if (*buf == 0x0d)
+ {
+ if (*(++buf) != 0x0a)
+ *np++ = 0x0d;
+ }
+ else
+ *np++ = *buf++;
+ }
+ if (buf < endp)
+ *np++ = *buf++;
+ return np - startp;
+}
+\f
+/* The Emacs root directory as determined by init_environment. */
+
+static char emacsroot[MAXPATHLEN];
+
+char *
+rootrelativepath (rel)
+ char *rel;
+{
+ static char result[MAXPATHLEN + 10];
+
+ strcpy (result, emacsroot);
+ strcat (result, "/");
+ strcat (result, rel);
+ return result;
+}
+
+/* Define a lot of environment variables if not already defined. Don't
+ remove anything unless you know what you're doing -- lots of code will
+ break if one or more of these are missing. */
+
+void
+init_environment (argc, argv, skip_args)
+ int argc;
+ char **argv;
+ int skip_args;
+{
+ char *s, *t, *root;
+ int len;
+
+ /* Find our root from argv[0]. Assuming argv[0] is, say,
+ "c:/emacs/bin/emacs.exe" our root will be "c:/emacs". */
+ root = alloca (MAXPATHLEN + 20);
+ _fixpath (argv[0], root);
+ strlwr (root);
+ len = strlen (root);
+ while (len > 0 && root[len] != '/' && root[len] != ':')
+ len--;
+ root[len] = '\0';
+ if (len > 4 && strcmp (root + len - 4, "/bin") == 0)
+ root[len - 4] = '\0';
+ else
+ strcpy (root, "c:/emacs"); /* Only under debuggers, I think. */
+ len = strlen (root);
+ strcpy (emacsroot, root);
+
+ /* We default HOME to our root. */
+ setenv ("HOME", root, 0);
+
+ /* We default EMACSPATH to root + "/bin". */
+ strcpy (root + len, "/bin");
+ setenv ("EMACSPATH", root, 0);
+
+ /* I don't expect anybody to ever use other terminals so the internal
+ terminal is the default. */
+ setenv ("TERM", "internal", 0);
+
+#ifdef HAVE_X_WINDOWS
+ /* Emacs expects DISPLAY to be set. */
+ setenv ("DISPLAY", "unix:0.0", 0);
+#endif
+
+ /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
+ downcase it and mirror the backslashes. */
+ s = getenv ("COMSPEC");
+ if (!s) s = "c:/command.com";
+ t = alloca (strlen (s) + 1);
+ strcpy (t, s);
+ strlwr (t);
+ dostounix_filename (t);
+ setenv ("SHELL", t, 0);
+
+ /* PATH is also downcased and backslashes mirrored. */
+ s = getenv ("PATH");
+ if (!s) s = "";
+ t = alloca (strlen (s) + 3);
+ /* Current directory is always considered part of MsDos's path but it is
+ not normally mentioned. Now it is. */
+ strcat (strcpy (t, ".;"), s);
+ strlwr (t);
+ dostounix_filename (t); /* Not a single file name, but this should work. */
+ setenv ("PATH", t, 1);
+
+ /* In some sense all dos users have root privileges, so... */
+ setenv ("USER", "root", 0);
+ setenv ("NAME", getenv ("USER"), 0);
- if (!q) q = "pc";
- strcpy (p, q);
- return 0;
+ /* Time zone determined from country code. To make this possible, the
+ country code may not span more than one time zone. In other words,
+ in the USA, you lose. */
+ if (!getenv ("TZ"))
+ switch (dos_country_code)
+ {
+ case 31: /* Belgium */
+ case 32: /* The Netherlands */
+ case 33: /* France */
+ case 34: /* Spain */
+ case 36: /* Hungary */
+ case 38: /* Yugoslavia (or what's left of it?) */
+ case 39: /* Italy */
+ case 41: /* Switzerland */
+ case 42: /* Tjekia */
+ case 45: /* Denmark */
+ case 46: /* Sweden */
+ case 47: /* Norway */
+ case 48: /* Poland */
+ case 49: /* Germany */
+ /* Daylight saving from last Sunday in March to last Sunday in
+ September, both at 2AM. */
+ setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
+ break;
+ case 44: /* United Kingdom */
+ case 351: /* Portugal */
+ case 354: /* Iceland */
+ setenv ("TZ", "GMT+00", 0);
+ break;
+ case 81: /* Japan */
+ case 82: /* Korea */
+ setenv ("TZ", "JST-09", 0);
+ break;
+ case 90: /* Turkey */
+ case 358: /* Finland */
+ setenv ("TZ", "EET-02", 0);
+ break;
+ case 972: /* Israel */
+ /* This is an approximation. (For exact rules, use the
+ `zoneinfo/israel' file which comes with DJGPP, but you need
+ to install it in `/usr/share/zoneinfo/' directory first.) */
+ setenv ("TZ", "IST-02IDT-03,M4.1.6/00:00,M9.5.6/01:00", 0);
+ break;
+ }
+ init_gettimeofday ();
}
-/* Destructively turn backslashes into slashes. */
+\f
+
+static int break_stat; /* BREAK check mode status. */
+static int stdin_stat; /* stdin IOCTL status. */
+
+/* These must be global. */
+static _go32_dpmi_seginfo ctrl_break_vector;
+static _go32_dpmi_registers ctrl_break_regs;
+static int ctrlbreakinstalled = 0;
+
+/* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */
+
void
-dostounix_filename (p)
- register char *p;
+ctrl_break_func (regs)
+ _go32_dpmi_registers *regs;
{
- while (*p)
- {
- if (*p == '\\')
- *p = '/';
- p++;
- }
+ Vquit_flag = Qt;
}
-/* Destructively turn slashes into backslashes. */
void
-unixtodos_filename (p)
- register char *p;
+install_ctrl_break_check ()
{
- while (*p)
+ if (!ctrlbreakinstalled)
{
- if (*p == '/')
- *p = '\\';
- p++;
+ /* Don't press Ctrl-Break if you don't have either DPMI or Emacs
+ was compiler with Djgpp 1.11 maintenance level 5 or later! */
+ ctrlbreakinstalled = 1;
+ ctrl_break_vector.pm_offset = (int) ctrl_break_func;
+ _go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector,
+ &ctrl_break_regs);
+ _go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector);
}
}
-/* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */
-int
-getdefdir (drive, dst)
- int drive;
- char *dst;
-{
- union REGS regs;
-
- *dst++ = '/';
- regs.h.dl = drive;
- regs.x.si = (int) dst;
- regs.h.ah = 0x47;
- intdos (®s, ®s);
- return !regs.x.cflag;
-}
+/*
+ * Turn off Dos' Ctrl-C checking and inhibit interpretation of
+ * control chars by Dos.
+ * Determine the keyboard type.
+ */
-/* Remove all CR's that are followed by a LF. */
int
-crlf_to_lf (n, buf)
- register int n;
- register unsigned char *buf;
+dos_ttraw ()
{
- unsigned char *np = buf;
- unsigned char *startp = buf;
- unsigned char *endp = buf + n;
- unsigned char c;
+ union REGS inregs, outregs;
+ static int first_time = 1;
+
+ break_stat = getcbrk ();
+ setcbrk (0);
+ install_ctrl_break_check ();
- if (n == 0)
- return n;
- while (buf < endp - 1)
+ if (first_time)
{
- if (*buf == 0x0d)
+ inregs.h.ah = 0xc0;
+ int86 (0x15, &inregs, &outregs);
+ extended_kbd = (!outregs.x.cflag) && (outregs.h.ah == 0);
+
+ have_mouse = 0;
+
+ if (internal_terminal
+#ifdef HAVE_X_WINDOWS
+ && inhibit_window_system
+#endif
+ )
{
- if (*(++buf) != 0x0a)
- *np++ = 0x0d;
+ inregs.x.ax = 0x0021;
+ int86 (0x33, &inregs, &outregs);
+ have_mouse = (outregs.x.ax & 0xffff) == 0xffff;
+ if (!have_mouse)
+ {
+ /* Reportedly, the above doesn't work for some mouse drivers. There
+ is an additional detection method that should work, but might be
+ a little slower. Use that as an alternative. */
+ inregs.x.ax = 0x0000;
+ int86 (0x33, &inregs, &outregs);
+ have_mouse = (outregs.x.ax & 0xffff) == 0xffff;
+ }
+
+ if (have_mouse)
+ {
+ have_mouse = 1; /* enable mouse */
+ mouse_visible = 0;
+
+ if (outregs.x.bx == 3)
+ {
+ mouse_button_count = 3;
+ mouse_button_translate[0] = 0; /* Left */
+ mouse_button_translate[1] = 2; /* Middle */
+ mouse_button_translate[2] = 1; /* Right */
+ }
+ else
+ {
+ mouse_button_count = 2;
+ mouse_button_translate[0] = 0;
+ mouse_button_translate[1] = 1;
+ }
+ mouse_position_hook = &mouse_get_pos;
+ mouse_init ();
+ }
}
- else
- *np++ = *buf++;
+
+ first_time = 0;
}
- if (buf < endp)
- *np++ = *buf++;
- return np - startp;
+
+ inregs.x.ax = 0x4400; /* Get IOCTL status. */
+ inregs.x.bx = 0x00; /* 0 = stdin. */
+ intdos (&inregs, &outregs);
+ stdin_stat = outregs.h.dl;
+
+ inregs.x.dx = stdin_stat | 0x0020; /* raw mode */
+ inregs.x.ax = 0x4401; /* Set IOCTL status */
+ intdos (&inregs, &outregs);
+ return !outregs.x.cflag;
}
+/* Restore status of standard input and Ctrl-C checking. */
+int
+dos_ttcooked ()
+{
+ union REGS inregs, outregs;
+
+ setcbrk (break_stat);
+ mouse_off ();
+
+ inregs.x.ax = 0x4401; /* Set IOCTL status. */
+ inregs.x.bx = 0x00; /* 0 = stdin. */
+ inregs.x.dx = stdin_stat;
+ intdos (&inregs, &outregs);
+ return !outregs.x.cflag;
+}
+\f
/* Run command as specified by ARGV in directory DIR.
- The command is run with input from TEMPIN and output to file TEMPOUT. */
+ The command is run with input from TEMPIN, output to
+ file TEMPOUT and stderr to TEMPERR. */
int
-run_msdos_command (argv, dir, tempin, tempout)
+run_msdos_command (argv, dir, tempin, tempout, temperr)
unsigned char **argv;
Lisp_Object dir;
- int tempin, tempout;
+ int tempin, tempout, temperr;
{
char *saveargv1, *saveargv2, **envv;
char oldwd[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */
int msshell, result = -1;
int in, out, inbak, outbak, errbak;
+ int x, y;
Lisp_Object cmd;
/* Get current directory as MSDOS cwd is not per-process. */
envv[len] = (char *) 0;
}
- if (XTYPE (dir) == Lisp_String)
+ if (STRINGP (dir))
chdir (XSTRING (dir)->data);
inbak = dup (0);
outbak = dup (1);
errbak = dup (2);
if (inbak < 0 || outbak < 0 || errbak < 0)
goto done; /* Allocation might fail due to lack of descriptors. */
+
+ if (have_mouse > 0)
+ mouse_get_xy (&x, &y);
+
+ dos_ttcooked (); /* do it here while 0 = stdin */
+
dup2 (tempin, 0);
dup2 (tempout, 1);
- dup2 (tempout, 2);
- dos_ttcooked ();
+ dup2 (temperr, 2);
+
result = spawnve (P_WAIT, argv[0], argv, envv);
- dos_ttraw ();
+
dup2 (inbak, 0);
dup2 (outbak, 1);
dup2 (errbak, 2);
+ close (inbak);
+ close (outbak);
+ close (errbak);
- done:
- chdir (oldwd);
- if (msshell)
- {
- argv[1] = saveargv1;
- argv[2] = saveargv2;
- }
- return result;
-}
-
-
-croak (badfunc)
- char *badfunc;
-{
- fprintf (stderr, "%s not yet implemented\r\n", badfunc);
- reset_sys_modes ();
- exit (1);
-}
-
-/* A list of unimplemented functions that we silently ignore. */
-unsigned alarm (s) unsigned s; {}
-fork () { return 0; }
-int kill (x, y) int x, y; { return -1; }
-nice (p) int p; {}
-void volatile pause () {}
-request_sigio () {}
-setpgrp () {return 0; }
-setpriority (x,y,z) int x,y,z; { return 0; }
-sigsetmask (x) int x; { return 0; }
-unrequest_sigio () {}
-
-#ifdef chdir
-#undef chdir
-#endif
-
-int
-sys_chdir (path)
- const char* path;
-{
- int len = strlen (path);
- char *tmp = (char *) alloca (len + 1);
- /* Gotta do this extern here due to the corresponding #define: */
- extern int chdir ();
-
- if (*path && path[1] == ':' && (getdisk () != tolower (path[0]) - 'a'))
- setdisk (tolower (path[0]) - 'a');
-
- strcpy (tmp, path);
- if (strcmp (path, "/") && strcmp (path + 1, ":/") && (path[len - 1] == '/'))
- tmp[len - 1] = 0;
- return chdir (tmp);
-}
-
-/* Sleep SECS. If KBDOK also return immediately if a key is pressed. */
-void
-sleep_or_kbd_hit (secs, kbdok)
- int secs, kbdok;
-{
- long clnow, clthen;
- struct timeval t;
-
- gettimeofday (&t, NULL);
- clnow = t.tv_sec * 100 + t.tv_usec / 10000;
- clthen = clnow + (100 * secs);
-
- do
- {
- gettimeofday (&t, NULL);
- clnow = t.tv_sec * 100 + t.tv_usec / 10000;
- if (kbdok && detect_input_pending ())
- return;
- }
- while (clnow < clthen);
-}
-
-/* Define a lot of environment variables if not already defined. Don't
- remove anything unless you know what you're doing -- lots of code will
- break if one or more of these are missing. */
-void
-init_environment (argc, argv, skip_args)
- int argc;
- char **argv;
- int skip_args;
-{
- char *s, *t;
-
- /* We default HOME to the directory from which Emacs was started, but with
- a "/bin" suffix removed. */
- s = argv[0];
- t = alloca (strlen (s) + 1);
- strcpy (t, s);
- s = t + strlen (t);
- while (s != t && *s != '/' && *s != ':') s--;
- if (s == t)
- t = "c:/emacs"; /* When run under debug32. */
- else
- {
- if (*s == ':') s++;
- *s = 0;
- if (s - 4 >= t && strcmp (s - 4, "/bin") == 0)
- s[strlen (s) - 4] = 0;
- }
- setenv ("HOME", t, 0);
-
- /* We set EMACSPATH to ~/bin (expanded) */
- s = getenv ("HOME");
- t = strcpy (alloca (strlen (s) + 6), s);
- if (s[strlen (s) - 1] != '/') strcat (t, "/");
- strcat (t, "bin");
- setenv ("EMACSPATH", t, 0);
-
- /* I don't expect anybody to ever use other terminals so the internal
- terminal is the default. */
- setenv ("TERM", "internal", 0);
-
- /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must
- downcase it and mirror the backslashes. */
- s = getenv ("COMSPEC");
- if (!s) s = "c:/command.com";
- t = alloca (strlen (s) + 1);
- strcpy (t, s);
- strlwr (t);
- dostounix_filename (t);
- setenv ("SHELL", t, 0);
-
- /* PATH is also downcased and backslashes mirrored. */
- s = getenv ("PATH");
- if (!s) s = "";
- t = alloca (strlen (s) + 3);
- /* Current directory is always considered part of MsDos's path but it is
- not normally mentioned. Now it is. */
- strcat (strcpy (t, ".;"), s);
- strlwr (t);
- dostounix_filename (t); /* Not a single file name, but this should work. */
- setenv ("PATH", t, 1);
-
- /* In some sense all dos users have root privileges, so... */
- setenv ("USER", "root", 0);
- setenv ("NAME", getenv ("USER"), 0);
-
- /* Time zone determined from country code. To make this possible, the
- country code may not span more than one time zone. In other words,
- in the USA, you lose. */
- switch (dos_country_code)
- {
- case 31: /* Belgium */
- case 32: /* The Netherlands */
- case 33: /* France */
- case 34: /* Spain */
- case 36: /* Hungary */
- case 38: /* Yugoslavia (or what's left of it?) */
- case 39: /* Italy */
- case 41: /* Switzerland */
- case 42: /* Tjekia */
- case 45: /* Denmark */
- case 46: /* Sweden */
- case 47: /* Norway */
- case 48: /* Poland */
- case 49: /* Germany */
- /* Daylight saving from last Sunday in March to last Sunday in
- September, both at 2AM. */
- setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0);
- break;
- case 44: /* United Kingdom */
- case 351: /* Portugal */
- case 354: /* Iceland */
- setenv ("TZ", "GMT+00", 0);
- break;
- case 81: /* Japan */
- case 82: /* Korea */
- setenv ("TZ", "???-09", 0);
- break;
- case 90: /* Turkey */
- case 358: /* Finland */
- case 972: /* Israel */
- setenv ("TZ", "EET-02", 0);
- break;
- }
- tzset ();
- init_gettimeofday ();
-}
-
-/* Flash the screen as a substitute for BEEPs. */
-
-static unsigned char _xorattr;
-
-static void
-do_visible_bell (xorattr)
- unsigned char xorattr;
-{
- _xorattr = xorattr;
- asm volatile
- (" pushl %eax
- pushl %ebx
- pushl %ecx
- pushl %edx
- movl $1,%edx
-visible_bell_0:
- call _ScreenRows
- pushl %eax
- call _ScreenCols
- pushl %eax
- movl _ScreenPrimary,%eax
- call dosmemsetup
- movl %eax,%ebx
- popl %ecx
- popl %eax
- imull %eax,%ecx
- movb (__xorattr),%al
- incl %ebx
-visible_bell_1:
- xorb %al,%gs:(%ebx)
- addl $2,%ebx
- decl %ecx
- jne visible_bell_1
- decl %edx
- jne visible_bell_3
-visible_bell_2:
- movzwl %ax,%eax
- movzwl %ax,%eax
- movzwl %ax,%eax
- movzwl %ax,%eax
- decw %cx
- jne visible_bell_2
- jmp visible_bell_0
-visible_bell_3:
- popl %edx
- popl %ecx
- popl %ebx
- popl %eax");
-}
-
-/* At screen position (X,Y), output C characters from string S with
- attribute A. Do it fast! */
+ dos_ttraw ();
+ if (have_mouse > 0)
+ {
+ mouse_init ();
+ mouse_moveto (x, y);
+ }
+
+ done:
+ chdir (oldwd);
+ if (msshell)
+ {
+ argv[1] = saveargv1;
+ argv[2] = saveargv2;
+ }
+ return result;
+}
-static void
-output_string (x, y, s, c, a)
- int x, y, c;
- unsigned char *s;
- unsigned char a;
+croak (badfunc)
+ char *badfunc;
{
- char *t = (char *)ScreenPrimary + 2 * (x + ScreenCols () * y);
- asm volatile
- (" movl %1,%%eax
- call dosmemsetup
- movl %%eax,%%edi
- movb %0,%%ah
- movl %2,%%ecx
- movl %3,%%esi
-output_string1:
- movb (%%esi),%%al
- movw %%ax,%%gs:(%%edi)
- addl $2,%%edi
- incl %%esi
- decl %%ecx
- jne output_string1"
- : /* no output */
- : "m" (a), "g" (t), "g" (c), "g" (s)
- : "%eax", "%ecx", /* "%gs",*/ "%esi", "%edi");
+ fprintf (stderr, "%s not yet implemented\r\n", badfunc);
+ reset_sys_modes ();
+ exit (1);
}
+\f
+/* ------------------------- Compatibility functions -------------------
+ * gethostname
+ * gettimeofday
+ */
-static int internal_terminal = 0;
-#undef fflush
+/*
+ * Hostnames for a pc are not really funny,
+ * but they are used in change log so we emulate the best we can.
+ */
-int
-internal_flush (f)
- FILE *f;
+gethostname (p, size)
+ char *p;
+ int size;
{
- static char spaces[] = " ";
- static int x;
- static int y;
- unsigned char *cp, *cp0;
- int count, i, j;
+ char *q = egetenv ("HOSTNAME");
- if (internal_terminal && f == stdout)
- {
- if (have_mouse) mouse_off ();
- cp = stdout->_base;
- count = stdout->_ptr - stdout->_base;
- while (count > 0)
- {
- switch (*cp++)
- {
- case 27:
- switch (*cp++)
- {
- case '@':
- y = *cp++;
- x = *cp++;
- count -= 4;
- break;
- case 'A':
- ScreenAttrib = *cp++;
- count -= 3;
- break;
- case 'B':
- do_visible_bell (*cp++);
- count -= 3;
- break;
- case 'C':
- ScreenClear ();
- x = y = 0;
- count -= 2;
- break;
- case 'E':
- i = ScreenCols () - x;
- j = x;
- while (i >= sizeof spaces)
- {
- output_string (j, y, spaces, sizeof spaces,
- ScreenAttrib);
- j += sizeof spaces;
- i -= sizeof spaces;
- }
- if (i > 0)
- output_string (j, y, spaces, i, ScreenAttrib);
- count -= 2;
- break;
- case 'R':
- x++;
- count -= 2;
- break;
- case 'U':
- y--;
- count -= 2;
- break;
- case 'X':
- ScreenAttrib ^= *cp++;
- count -= 3;
- break;
- default:
- count -= 2;
- }
- break;
- case 7:
- write (1, "\007", 1);
- count--;
- break;
- case 8:
- x--;
- count--;
- break;
- case 13:
- x = 0;
- count--;
- break;
- case 10:
- y++;
- count--;
- break;
- default:
- cp0 = cp - 1;
- count--;
- while (count > 0 && *cp >= ' ')
- cp++, count--;
- output_string (x, y, cp0, cp - cp0, ScreenAttrib);
- x += (cp - cp0);
- }
- }
- fpurge (stdout);
- ScreenSetCursor (y, x);
- if (have_mouse) mouse_on ();
- }
- else
- /* This is a call to the original fflush. */
- fflush (f);
+ if (!q) q = "pc";
+ strcpy (p, q);
+ return 0;
}
-/* Do we need the internal terminal? */
-void
-internal_terminal_init ()
-{
- char *term = getenv ("TERM");
-
- internal_terminal
- = (!noninteractive) && term && !strcmp (term, "internal");
-}
-\f
-/* When time zones are set from Ms-Dos too may C-libraries are playing
+/* When time zones are set from Ms-Dos too many C-libraries are playing
tricks with time values. We solve this by defining our own version
of `gettimeofday' bypassing GO32. Our version needs to be initialized
- once and after each call to `tzset' with TZ changed. */
+ once and after each call to `tzset' with TZ changed. That is
+ accomplished by aliasing tzset to init_gettimeofday. */
-static int daylight, gmtoffset;
+static struct tm time_rec;
int
gettimeofday (struct timeval *tp, struct timezone *tzp)
if (tp)
{
struct time t;
- struct date d;
- struct tm tmrec;
-
+ struct tm tm;
+
gettime (&t);
- getdate (&d);
- tmrec.tm_year = d.da_year - 1900;
- tmrec.tm_mon = d.da_mon - 1;
- tmrec.tm_mday = d.da_day;
- tmrec.tm_hour = t.ti_hour;
- tmrec.tm_min = t.ti_min;
- tmrec.tm_sec = t.ti_sec;
- tmrec.tm_gmtoff = gmtoffset;
- tmrec.tm_isdst = daylight;
- tp->tv_sec = mktime (&tmrec);
+ if (t.ti_hour < time_rec.tm_hour) /* midnight wrap */
+ {
+ struct date d;
+ getdate (&d);
+ time_rec.tm_year = d.da_year - 1900;
+ time_rec.tm_mon = d.da_mon - 1;
+ time_rec.tm_mday = d.da_day;
+ }
+
+ time_rec.tm_hour = t.ti_hour;
+ time_rec.tm_min = t.ti_min;
+ time_rec.tm_sec = t.ti_sec;
+
+ tm = time_rec;
+ tm.tm_gmtoff = dos_timezone_offset;
+
+ tp->tv_sec = mktime (&tm); /* may modify tm */
tp->tv_usec = t.ti_hund * (1000000 / 100);
}
- if (tzp)
- {
- tzp->tz_minuteswest = gmtoffset;
- tzp->tz_dsttime = daylight;
- }
+ /* Ignore tzp; it's obsolescent. */
return 0;
}
-void
-init_gettimeofday ()
-{
- time_t ltm, gtm;
- struct tm *lstm;
- daylight = 0;
- gmtoffset = 0;
- ltm = gtm = time (NULL);
- ltm = mktime (lstm = localtime (<m));
- gtm = mktime (gmtime (>m));
- daylight = lstm->tm_isdst;
- gmtoffset = (int)(gtm - ltm) / 60;
-}
-\f
-/* These must be global. */
-static _go32_dpmi_seginfo ctrl_break_vector;
-static _go32_dpmi_registers ctrl_break_regs;
-static int ctrlbreakinstalled = 0;
+/*
+ * A list of unimplemented functions that we silently ignore.
+ */
-/* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */
-void
-ctrl_break_func (regs)
- _go32_dpmi_registers *regs;
-{
- Vquit_flag = Qt;
-}
+unsigned alarm (s) unsigned s; {}
+fork () { return 0; }
+int kill (x, y) int x, y; { return -1; }
+nice (p) int p; {}
+void volatile pause () {}
+request_sigio () {}
+setpgrp () {return 0; }
+setpriority (x,y,z) int x,y,z; { return 0; }
+sigsetmask (x) int x; { return 0; }
+unrequest_sigio () {}
-void
-install_ctrl_break_check ()
-{
- if (!ctrlbreakinstalled)
- {
- /* Don't press Ctrl-Break if you don't have either DPMI or Emacs
- was compiler with Djgpp 1.11 maintenance level 2 or later! */
- ctrlbreakinstalled = 1;
- ctrl_break_vector.pm_offset = (int) ctrl_break_func;
- _go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector,
- &ctrl_break_regs);
- _go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector);
- }
-}
-\f
+#ifndef HAVE_SELECT
+#include "sysselect.h"
-/* Mouse routines under devellopment follow. Coordinates are in screen
- positions and zero based. Mouse buttons are numbered from left to
- right and also zero based. */
+static struct time last_time = {120, 120, 120, 120};
+static int modeline_time_displayed = 0;
-static int mouse_button_translate[NUM_MOUSE_BUTTONS];
-static int mouse_button_count;
+Lisp_Object Vdos_display_time;
-void
-mouse_init ()
+static void
+check_timer (t)
+ struct time *t;
{
- union REGS regs;
+ int sec, min, hour, hund;
- regs.x.ax = 0x0007;
- regs.x.cx = 0;
- regs.x.dx = 8 * (ScreenCols () - 1);
- int86 (0x33, ®s, ®s);
-
- regs.x.ax = 0x0008;
- regs.x.cx = 0;
- regs.x.dx = 8 * (ScreenRows () - 1);
- int86 (0x33, ®s, ®s);
+ gettime (t);
+ sec = t->ti_sec;
+ hund = t->ti_hund;
+ hour = t->ti_hour;
+ min = t->ti_min;
- mouse_moveto (ScreenCols () - 1, ScreenRows () - 1);
- mouse_on ();
-}
+ /* Any chance of not getting here 24 hours or more since last time? */
+ if (hour == last_time.ti_hour
+ && min == last_time.ti_min
+ && sec == last_time.ti_sec)
+ return;
-void
-mouse_on ()
-{
- union REGS regs;
+ if (!NILP (Vdos_display_time))
+ {
+ int interval;
+ Lisp_Object dti = XSYMBOL (Fintern_soft (build_string ("display-time-interval"), Qnil))->value;
+ int delta_time = ((hour - last_time.ti_hour) * 3600
+ + (min - last_time.ti_min) * 60
+ + (sec - last_time.ti_sec));
+
+ /* Who knows what the user may put into `display-time-interval'? */
+ if (!INTEGERP (dti) || (interval = XINT (dti)) <= 0)
+ interval = 60;
+
+ /* When it's time to renew the display, fake a `wakeup' call. */
+ if (!modeline_time_displayed /* first time */
+ || delta_time >= interval /* or if we were busy for a long time */
+ || interval == 1 /* and every `interval' seconds hence */
+ || interval == 60 && sec == 0 /* (usual cases first) */
+ || (hour * 3600 + min * 60 + sec) % interval == 0)
+ call2 (intern ("display-time-filter"), Qnil,
+ build_string ("Wake up!\n"));
+
+ modeline_time_displayed = 1;
+ }
+ else if (modeline_time_displayed)
+ {
+ modeline_time_displayed = 0;
+ Fset (intern ("display-time-string"), build_string (""));
- regs.x.ax = 0x0001;
- int86 (0x33, ®s, ®s);
+ /* Force immediate redisplay of modelines. */
+ update_mode_lines++;
+ redisplay_preserve_echo_area ();
+ }
+
+ last_time = *t;
}
-void
-mouse_off ()
+/* Only event queue is checked. */
+int
+sys_select (nfds, rfds, wfds, efds, timeout)
+ int nfds;
+ SELECT_TYPE *rfds, *wfds, *efds;
+ EMACS_TIME *timeout;
{
- union REGS regs;
-
- regs.x.ax = 0x0002;
- int86 (0x33, ®s, ®s);
-}
+ int check_input;
+ long timeoutval, clnow, cllast;
+ struct time t;
-void
-mouse_moveto (x, y)
- int x, y;
-{
- union REGS regs;
+ check_input = 0;
+ if (rfds)
+ {
+ check_input = FD_ISSET (0, rfds);
+ FD_ZERO (rfds);
+ }
+ if (wfds)
+ FD_ZERO (wfds);
+ if (efds)
+ FD_ZERO (efds);
+
+ if (nfds != 1)
+ abort ();
+
+ /* If we are looking only for the terminal, with no timeout,
+ just read it and wait -- that's more efficient. */
+ if (!timeout)
+ {
+ do
+ check_timer (&t); /* check timer even if some input is pending */
+ while (!detect_input_pending ());
+ }
+ else
+ {
+ timeoutval = EMACS_SECS (*timeout) * 100 + EMACS_USECS (*timeout) / 10000;
+ check_timer (&t);
+ cllast = t.ti_sec * 100 + t.ti_hund;
- regs.x.ax = 0x0004;
- mouse_last_x = regs.x.cx = x * 8;
- mouse_last_y = regs.x.dx = y * 8;
- int86 (0x33, ®s, ®s);
+ while (!check_input || !detect_input_pending ())
+ {
+ check_timer (&t);
+ clnow = t.ti_sec * 100 + t.ti_hund;
+ if (clnow < cllast) /* time wrap */
+ timeoutval -= clnow + 6000 - cllast;
+ else
+ timeoutval -= clnow - cllast;
+ if (timeoutval <= 0) /* Stop on timer being cleared */
+ return 0;
+ cllast = clnow;
+ }
+ }
+
+ FD_SET (0, rfds);
+ return 1;
}
+#endif
-int
-mouse_pressed (b, xp, yp)
- int b, *xp, *yp;
-{
- union REGS regs;
+/*
+ * Define overlaid functions:
+ *
+ * chdir -> sys_chdir
+ * tzset -> init_gettimeofday
+ * abort -> dos_abort
+ */
- if (b >= mouse_button_count)
- return 0;
- regs.x.ax = 0x0005;
- regs.x.bx = mouse_button_translate[b];
- int86 (0x33, ®s, ®s);
- if (regs.x.bx)
- *xp = regs.x.cx / 8, *yp = regs.x.dx /8;
- return (regs.x.bx != 0);
-}
+#ifdef chdir
+#undef chdir
+extern int chdir ();
int
-mouse_released (b, xp, yp)
- int b, *xp, *yp;
+sys_chdir (path)
+ const char* path;
{
- union REGS regs;
+ int len = strlen (path);
+ char *tmp = (char *)path;
- if (b >= mouse_button_count)
- return 0;
- regs.x.ax = 0x0006;
- regs.x.bx = mouse_button_translate[b];
- int86 (0x33, ®s, ®s);
- if (regs.x.bx)
- *xp = regs.x.cx / 8, *yp = regs.x.dx / 8;
- return (regs.x.bx != 0);
+ if (*tmp && tmp[1] == ':')
+ {
+ if (getdisk () != tolower (tmp[0]) - 'a')
+ setdisk (tolower (tmp[0]) - 'a');
+ tmp += 2; /* strip drive: KFS 1995-07-06 */
+ len -= 2;
+ }
+
+ if (len > 1 && (tmp[len - 1] == '/'))
+ {
+ char *tmp1 = (char *) alloca (len + 1);
+ strcpy (tmp1, tmp);
+ tmp1[len - 1] = 0;
+ tmp = tmp1;
+ }
+ return chdir (tmp);
}
+#endif
+
+#ifdef tzset
+#undef tzset
+extern void tzset (void);
void
-mouse_get_pos (f, bar_window, part, x, y, time)
- FRAME_PTR *f;
- Lisp_Object *bar_window, *x, *y;
- enum scroll_bar_part *part;
- unsigned long *time;
+init_gettimeofday ()
{
- union REGS regs;
- struct timeval tv;
+ time_t ltm, gtm;
+ struct tm *lstm;
- regs.x.ax = 0x0003;
- int86 (0x33, ®s, ®s);
- *f = selected_frame;
- *bar_window = Qnil;
- gettimeofday (&tv, NULL);
- *x = make_number (regs.x.cx);
- *y = make_number (regs.x.dx);
- *time = tv.tv_usec;
- mouse_moved = 0;
+ tzset ();
+ ltm = gtm = time (NULL);
+ ltm = mktime (lstm = localtime (<m));
+ gtm = mktime (gmtime (>m));
+ time_rec.tm_hour = 99; /* force gettimeofday to get date */
+ time_rec.tm_isdst = lstm->tm_isdst;
+ dos_timezone_offset = time_rec.tm_gmtoff = (int)(gtm - ltm) / 60;
}
+#endif
+#ifdef abort
+#undef abort
void
-mouse_check_moved ()
+dos_abort (file, line)
+ char *file;
+ int line;
{
- union REGS regs;
-
- regs.x.ax = 0x0003;
- int86 (0x33, ®s, ®s);
- if (regs.x.cx != mouse_last_x || regs.x.dx != mouse_last_y)
- {
- mouse_moved = 1;
- mouse_last_x = regs.x.cx;
- mouse_last_y = regs.x.dx;
- }
+ char buffer1[200], buffer2[400];
+ int i, j;
+
+ sprintf (buffer1, "<EMACS FATAL ERROR IN %s LINE %d>", file, line);
+ for (i = j = 0; buffer1[i]; i++) {
+ buffer2[j++] = buffer1[i];
+ buffer2[j++] = 0x70;
+ }
+ dosmemput (buffer2, j, (int)ScreenPrimary);
+ ScreenSetCursor (2, 0);
+ abort ();
}
-
-int
-mouse_init1 ()
+#else
+void
+abort ()
{
- union REGS regs;
- int present;
-
- regs.x.ax = 0x0021;
- int86 (0x33, ®s, ®s);
- present = internal_terminal && (regs.x.ax & 0xffff) == 0xffff;
- if (present)
- {
- if (regs.x.bx == 3)
- {
- mouse_button_count = 3;
- mouse_button_translate[0] = 0; /* Left */
- mouse_button_translate[1] = 2; /* Middle */
- mouse_button_translate[2] = 1; /* Right */
- }
- else
- {
- mouse_button_count = 2;
- mouse_button_translate[0] = 0;
- mouse_button_translate[1] = 1;
- }
- mouse_position_hook = &mouse_get_pos;
- mouse_init ();
- }
- return present;
+ dos_ttcooked ();
+ ScreenSetCursor (10, 0);
+ cputs ("\r\n\nEmacs aborted!\r\n");
+ exit (2);
}
+#endif
-/* See xterm.c for more info. */
-void
-pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip)
- FRAME_PTR f;
- register int pix_x, pix_y;
- register int *x, *y;
- void /* XRectangle */ *bounds;
- int noclip;
+syms_of_msdos ()
{
- if (bounds) abort ();
-
- /* Ignore clipping. */
+ recent_doskeys = Fmake_vector (make_number (NUM_RECENT_DOSKEYS), Qnil);
+ staticpro (&recent_doskeys);
- *x = pix_x;
- *y = pix_y;
-}
+ defsubr (&Srecent_doskeys);
-void
-glyph_to_pixel_coords (f, x, y, pix_x, pix_y)
- FRAME_PTR f;
- register int x, y;
- register int *pix_x, *pix_y;
-{
- *pix_x = x;
- *pix_y = y;
+ DEFVAR_LISP ("dos-display-time", &Vdos_display_time,
+ "*When non-nil, `display-time' is in effect on DOS systems.");
+ Vdos_display_time = Qnil;
}
#endif /* MSDOS */