X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/fb859603163458157f107bae728cfefabff41c1a..9be82109cf415740771cdd7207e76739cdbff5bd:/src/dosfns.c diff --git a/src/dosfns.c b/src/dosfns.c index 11e30c0759..dd95804166 100644 --- a/src/dosfns.c +++ b/src/dosfns.c @@ -1,6 +1,6 @@ /* MS-DOS specific Lisp utilities. Coded by Manabu Higashida, 1991. Major changes May-July 1993 Morten Welinder (only 10% original code left) - Copyright (C) 1991, 1993 Free Software Foundation, Inc. + Copyright (C) 1991, 1993, 1996, 1997 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -26,15 +26,28 @@ Boston, MA 02111-1307, USA. */ /* The entire file is within this conditional */ #include +#include #include #include "lisp.h" #include "buffer.h" #include "termchar.h" #include "termhooks.h" #include "frame.h" +#include "blockinput.h" +#include "window.h" #include "dosfns.h" #include "msdos.h" +#include "dispextern.h" +#include "charset.h" +#include "coding.h" +#include #include +#include +#include + +#ifndef __DJGPP_MINOR__ +# define __tb _go32_info_block.linear_address_of_transfer_buffer; +#endif DEFUN ("int86", Fint86, Sint86, 2, 2, 0, "Call specific MSDOS interrupt number INTERRUPT with REGISTERS.\n\ @@ -163,22 +176,6 @@ Report whether a mouse is present.") else return Qnil; } - -DEFUN ("set-mouse-position", Fset_mouse_position, Sset_mouse_position, 3, 3, 0, - "Move the mouse pointer to the center of character cell (X,Y) in FRAME.\n\ -WARNING: If you use this under X windows,\n\ -you should call `unfocus-frame' afterwards.") - (frame, x, y) - Lisp_Object frame, x, y; -{ - mouse_moveto (XINT (x), XINT (y)); - return Qnil; -} - -/* Function to translate colour names to integers. See lisp/term/pc-win.el - for its definition. */ - -Lisp_Object Qmsdos_color_translate; #endif @@ -232,27 +229,14 @@ Return nil if startup screen is not available.") { for (j = 0; j < cols; j++) { - insert_char (*s, 1); + insert_char (*s); s += 2; } - insert_char ('\n', 1); + insert_char ('\n'); } return Qt; } - -DEFUN ("msdos-long-file-names", Fmsdos_long_file_names, Smsdos_long_file_names, - 0, 0, 0, - "Return non-nil if long file names are supported. on MSDOS.") - () -{ -#if __DJGPP__ >= 2 - return (! NILP (Fgetenv ("LFN")) ? Qt : Qnil); -#else - return Qnil; -#endif -} - /* country info */ int dos_country_code; @@ -261,6 +245,20 @@ int dos_timezone_offset; int dos_decimal_point; int dos_keyboard_layout; unsigned char dos_country_info[DOS_COUNTRY_INFO]; +static unsigned char usa_country_info[DOS_COUNTRY_INFO] = { + 0, 0, /* date format */ + '$', 0, 0, 0, 0, /* currency string */ + ',', 0, /* thousands separator */ + '.', 0, /* decimal separator */ + '/', 0, /* date separator */ + ':', 0, /* time separator */ + 0, /* currency format */ + 2, /* digits after decimal in currency */ + 0, /* time format */ + 0, 0, 0, 0, /* address of case map routine, GPF if used */ + ' ', 0, /* data-list separator (?) */ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* reserved */ +}; int dos_hyper_key; int dos_super_key; @@ -268,13 +266,31 @@ int dos_keypad_mode; Lisp_Object Vdos_version; Lisp_Object Vdos_display_scancodes; + +#ifndef HAVE_X_WINDOWS +static unsigned dos_windows_version; +Lisp_Object Vdos_windows_version; + +char parent_vm_title[50]; /* Ralf Brown says 30 is enough */ +int w95_set_virtual_machine_title (const char *); + +void +restore_parent_vm_title (void) +{ + if (NILP (Vdos_windows_version)) + return; + if ((dos_windows_version & 0xff) >= 4 && parent_vm_title[0]) + w95_set_virtual_machine_title (parent_vm_title); + delay (50); +} +#endif /* !HAVE_X_WINDOWS */ void init_dosfns () { union REGS regs; - _go32_dpmi_seginfo info; _go32_dpmi_registers dpmiregs; + unsigned long xbuf = _go32_info_block.linear_address_of_transfer_buffer; #ifndef SYSTEM_MALLOC get_lim_data (); /* why the hell isn't this called elsewhere? */ @@ -284,21 +300,23 @@ init_dosfns () intdos (®s, ®s); Vdos_version = Fcons (make_number (regs.h.al), make_number (regs.h.ah)); - /* Obtain the country code by calling Dos via Dpmi. Don't rely on GO32. */ - info.size = (sizeof(dos_country_info) + 15) / 16; - if (_go32_dpmi_allocate_dos_memory (&info)) - dos_country_code = 1; + /* Obtain the country code via DPMI, use DJGPP transfer buffer. */ + dpmiregs.x.ax = 0x3800; + dpmiregs.x.ds = xbuf >> 4; + dpmiregs.x.dx = 0; + dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; + _go32_dpmi_simulate_int (0x21, &dpmiregs); + if (dpmiregs.x.flags & 1) + { + dos_country_code = 1; /* assume USA if 213800 failed */ + memcpy (dos_country_info, usa_country_info, DOS_COUNTRY_INFO); + } else { - dpmiregs.x.ax = 0x3800; - dpmiregs.x.ds = info.rm_segment; - dpmiregs.x.dx = 0; - dpmiregs.x.ss = dpmiregs.x.sp = 0; - _go32_dpmi_simulate_int (0x21, &dpmiregs); dos_country_code = dpmiregs.x.bx; - dosmemget (info.rm_segment * 16, DOS_COUNTRY_INFO, dos_country_info); - _go32_dpmi_free_dos_memory (&info); + dosmemget (xbuf, DOS_COUNTRY_INFO, dos_country_info); } + dos_set_keyboard (dos_country_code, 0); regs.x.ax = 0x6601; @@ -317,8 +335,223 @@ init_dosfns () } else dos_codepage = regs.x.bx & 0xffff; + +#ifndef HAVE_X_WINDOWS + parent_vm_title[0] = '\0'; + + /* If we are running from DOS box on MS-Windows, get Windows version. */ + dpmiregs.x.ax = 0x1600; /* enhanced mode installation check */ + dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; + _go32_dpmi_simulate_int (0x2f, &dpmiregs); + /* We only support Windows-specific features when we run on Windows 9X + or on Windows 3.X/enhanced mode. + + Int 2Fh/AX=1600h returns: + + AL = 00: no Windows at all; + AL = 01: Windows/386 2.x; + AL = 80h: Windows 3.x in mode other than enhanced; + AL = FFh: Windows/386 2.x + + We also check AH > 0 (Windows 3.1 or later), in case AL tricks us. */ + if (dpmiregs.h.al > 2 && dpmiregs.h.al != 0x80 && dpmiregs.h.al != 0xff + && (dpmiregs.h.al > 3 || dpmiregs.h.ah > 0)) + { + dos_windows_version = dpmiregs.x.ax; + Vdos_windows_version = + Fcons (make_number (dpmiregs.h.al), make_number (dpmiregs.h.ah)); + + /* Save the current title of this virtual machine, so we can restore + it before exiting. Otherwise, Windows 95 will continue to use + the title we set even after we are history, stupido... */ + if (dpmiregs.h.al >= 4) + { + dpmiregs.x.ax = 0x168e; + dpmiregs.x.dx = 3; /* get VM title */ + dpmiregs.x.cx = sizeof(parent_vm_title) - 1; + dpmiregs.x.es = __tb >> 4; + dpmiregs.x.di = __tb & 15; + dpmiregs.x.sp = dpmiregs.x.ss = dpmiregs.x.flags = 0; + _go32_dpmi_simulate_int (0x2f, &dpmiregs); + if (dpmiregs.x.ax == 1) + dosmemget (__tb, sizeof(parent_vm_title), parent_vm_title); + } + } + else + { + dos_windows_version = 0; + Vdos_windows_version = Qnil; + } +#endif /* !HAVE_X_WINDOWS */ + +#if __DJGPP__ >= 2 + + /* Without this, we never see hidden files. + Don't OR it with the previous value, so the value recorded at dump + time, possibly with `preserve-case' flags set, won't get through. */ + __opendir_flags = __OPENDIR_FIND_HIDDEN; + +#if __DJGPP_MINOR__ == 0 + /* Under LFN, preserve the case of files as recorded in the directory + (in DJGPP 2.01 and later this is automagically done by the library). */ + if (!NILP (Fmsdos_long_file_names ())) + __opendir_flags |= __OPENDIR_PRESERVE_CASE; +#endif /* __DJGPP_MINOR__ == 0 */ +#endif /* __DJGPP__ >= 2 */ } +#ifndef HAVE_X_WINDOWS + +/* Emulation of some X window features from xfns.c and xfaces.c. */ + +/* Standard VGA colors, in the order of their standard numbering + in the default VGA palette. */ +static char *vga_colors[16] = { + "black", "blue", "green", "cyan", "red", "magenta", "brown", + "lightgray", "darkgray", "lightblue", "lightgreen", "lightcyan", + "lightred", "lightmagenta", "yellow", "white" +}; + +/* Given a color name, return its index, or -1 if not found. Note + that this only performs case-insensitive comparison against the + standard names. For anything more sophisticated, like matching + "gray" with "grey" or translating X color names into their MSDOS + equivalents, call the Lisp function Qtty_color_desc (defined + on lisp/term/tty-colors.el). */ +int +msdos_stdcolor_idx (const char *name) +{ + int i; + + for (i = 0; i < sizeof (vga_colors) / sizeof (vga_colors[0]); i++) + if (strcasecmp (name, vga_colors[i]) == 0) + return i; + + return + strcmp (name, unspecified_fg) == 0 ? FACE_TTY_DEFAULT_FG_COLOR + : strcmp (name, unspecified_bg) == 0 ? FACE_TTY_DEFAULT_BG_COLOR + : FACE_TTY_DEFAULT_COLOR; +} + +/* Given a color index, return its standard name. */ +Lisp_Object +msdos_stdcolor_name (int idx) +{ + extern Lisp_Object Qunspecified; + + if (idx == FACE_TTY_DEFAULT_FG_COLOR) + return build_string (unspecified_fg); + else if (idx == FACE_TTY_DEFAULT_BG_COLOR) + return build_string (unspecified_bg); + else if (idx >= 0 && idx < sizeof (vga_colors) / sizeof (vga_colors[0])) + return build_string (vga_colors[idx]); + else + return Qunspecified; /* meaning the default */ +} + +/* Support for features that are available when we run in a DOS box + on MS-Windows. */ +int +ms_windows_version (void) +{ + return dos_windows_version; +} + +/* Set the title of the current virtual machine, to appear on + the caption bar of that machine's window. */ + +int +w95_set_virtual_machine_title (const char *title_string) +{ + /* Only Windows 9X (version 4 and higher) support this function. */ + if (!NILP (Vdos_windows_version) + && (dos_windows_version & 0xff) >= 4) + { + _go32_dpmi_registers regs; + dosmemput (title_string, strlen (title_string) + 1, __tb); + regs.x.ax = 0x168e; + regs.x.dx = 1; + regs.x.es = __tb >> 4; + regs.x.di = __tb & 15; + regs.x.sp = regs.x.ss = regs.x.flags = 0; + _go32_dpmi_simulate_int (0x2f, ®s); + return regs.x.ax == 1; + } + return 0; +} + +/* Change the title of frame F to NAME. + If NAME is nil, use the frame name as the title. + + If Emacs is not run from a DOS box on Windows 9X, this only + sets the name in the frame struct, but has no other effects. */ + +void +x_set_title (f, name) + struct frame *f; + Lisp_Object name; +{ + /* Don't change the title if it's already NAME. */ + if (EQ (name, f->title)) + return; + + update_mode_lines = 1; + + f->title = name; + + if (NILP (name)) + name = f->name; + + if (FRAME_MSDOS_P (f)) + { + BLOCK_INPUT; + w95_set_virtual_machine_title (XSTRING (name)->data); + UNBLOCK_INPUT; + } +} +#endif /* !HAVE_X_WINDOWS */ + +DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0, + "Return storage information about the file system FILENAME is on.\n\ +Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total\n\ +storage of the file system, FREE is the free storage, and AVAIL is the\n\ +storage available to a non-superuser. All 3 numbers are in bytes.\n\ +If the underlying system call fails, value is nil.") + (filename) + Lisp_Object filename; +{ + struct statfs stfs; + Lisp_Object encoded, value; + + CHECK_STRING (filename, 0); + filename = Fexpand_file_name (filename, Qnil); + encoded = ENCODE_FILE (filename); + + if (statfs (XSTRING (encoded)->data, &stfs)) + value = Qnil; + else + value = list3 (make_float ((double) stfs.f_bsize * stfs.f_blocks), + make_float ((double) stfs.f_bsize * stfs.f_bfree), + make_float ((double) stfs.f_bsize * stfs.f_bavail)); + + return value; +} + +void +dos_cleanup (void) +{ +#ifndef HAVE_X_WINDOWS + restore_parent_vm_title (); +#endif + /* Make sure the termscript file is committed, in case we are + crashing and some vital info was written there. */ + if (termscript) + { + fflush (termscript); + fsync (fileno (termscript)); + } +} + /* * Define everything */ @@ -332,13 +565,9 @@ syms_of_dosfns () defsubr (&Smsdos_set_keyboard); defsubr (&Sinsert_startup_screen); defsubr (&Smsdos_mouse_disable); - defsubr (&Smsdos_long_file_names); + defsubr (&Sfile_system_info); #ifndef HAVE_X_WINDOWS defsubr (&Smsdos_mouse_p); - defsubr (&Sset_mouse_position); - - Qmsdos_color_translate = intern ("msdos-color-translate"); - staticpro (&Qmsdos_color_translate); #endif DEFVAR_INT ("dos-country-code", &dos_country_code, @@ -364,6 +593,11 @@ Implicitly modified when the TZ variable is changed."); DEFVAR_LISP ("dos-version", &Vdos_version, "The (MAJOR . MINOR) Dos version (subject to modification with setver)."); +#ifndef HAVE_X_WINDOWS + DEFVAR_LISP ("dos-windows-version", &Vdos_windows_version, + "The (MAJOR . MINOR) Windows version for DOS session on MS-Windows."); +#endif + DEFVAR_LISP ("dos-display-scancodes", &Vdos_display_scancodes, "*When non-nil, the keyboard scan-codes are displayed at the bottom right\n\ corner of the display (typically at the end of the mode line).\n\