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/* vi:set ts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
*/
/*
* os_msdos.c
*
* MSDOS system-dependent routines.
* A cheap plastic imitation of the amiga dependent code.
* A lot in this file was made by Juergen Weigert (jw).
*
* DJGPP changes by Gert van Antwerpen
*/
#include <io.h>
#include "vim.h"
#include "globals.h"
#include "option.h"
#include "proto.h"
#include <conio.h>
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#include <bios.h>
#ifdef DJGPP
# include <dpmi.h>
# include <signal.h>
#else
# include <alloc.h>
#endif
static int WaitForChar __ARGS((long));
#ifdef USE_MOUSE
static void show_mouse __ARGS((int));
static void mouse_area __ARGS((void));
#endif
static int change_drive __ARGS((int));
static void slash_adjust __ARGS((char_u *));
static int cbrk_handler __ARGS(());
static void set_interrupts __ARGS((int on));
typedef struct filelist
{
char_u **file;
int nfiles;
int maxfiles;
} FileList;
static void addfile __ARGS((FileList *, char_u *, int));
static int pstrcmp(); /* __ARGS((char **, char **)); BCC does not like this */
static void strlowcpy __ARGS((char_u *, char_u *));
static int expandpath __ARGS((FileList *, char_u *, int, int, int));
static int cbrk_pressed = FALSE; /* set by ctrl-break interrupt */
static int ctrlc_pressed = FALSE; /* set when ctrl-C or ctrl-break detected */
static int delayed_redraw = FALSE; /* set when ctrl-C detected */
#ifdef USE_MOUSE
static int mouse_avail = FALSE; /* mouse present */
static int mouse_active; /* mouse enabled */
static int mouse_hidden; /* mouse not shown */
static int mouse_click = 0; /* mouse status */
static int mouse_x = -1; /* mouse x coodinate */
static int mouse_y = -1; /* mouse y coodinate */
static long mouse_click_time = 0; /* biostime() of last click */
static int mouse_click_count = 0; /* count for multi-clicks */
static int mouse_last_click = 0; /* previous status at click */
static int mouse_click_x = 0; /* x of previous mouse click */
static int mouse_click_y = 0; /* y of previous mouse click */
static linenr_t mouse_topline = 0; /* topline at previous mouse click */
static int mouse_x_div = 8; /* column = x coord / mouse_x_div */
static int mouse_y_div = 8; /* line = y coord / mouse_y_div */
#endif
#define BIOSTICK 55 /* biostime() increases one tick about
every 55 msec */
long
mch_avail_mem(special)
int special;
{
#ifdef DJGPP
return _go32_dpmi_remaining_virtual_memory();
#else
return coreleft();
#endif
}
/*
* don't do anything for about 500 msec
*/
void
mch_delay(msec, ignoreinput)
long msec;
int ignoreinput;
{
long starttime;
if (ignoreinput)
{
starttime = biostime(0, 0L);
while (biostime(0, 0L) < starttime + msec / BIOSTICK)
;
}
else
WaitForChar(msec);
}
/*
* this version of remove is not scared by a readonly (backup) file
*
* returns -1 on error, 0 otherwise (just like remove())
*/
int
vim_remove(name)
char_u *name;
{
(void)setperm(name, 0); /* default permissions */
return unlink((char *)name);
}
/*
* mch_write(): write the output buffer to the screen
*/
void
mch_write(s, len)
char_u *s;
int len;
{
char_u *p;
int row, col;
if (term_console) /* translate ESC | sequences into bios calls */
while (len--)
{
if (p_wd) /* testing: wait a bit for each char */
WaitForChar(p_wd);
if (s[0] == '\n')
putch('\r');
else if (s[0] == ESC && len > 1 && s[1] == '|')
{
switch (s[2])
{
#ifdef DJGPP
case 'B': ScreenVisualBell();
goto got3;
#endif
case 'J': clrscr();
goto got3;
case 'K': clreol();
goto got3;
case 'L': insline();
goto got3;
case 'M': delline();
got3: s += 3;
len -= 2;
continue;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': p = s + 2;
row = getdigits(&p); /* no check for length! */
if (p > s + len)
break;
if (*p == ';')
{
++p;
col = getdigits(&p); /* no check for length! */
if (p > s + len)
break;
if (*p == 'H' || *p == 'r')
{
if (*p == 'H') /* set cursor position */
gotoxy(col, row);
else /* set scroll region */
window(1, row, Columns, col);
len -= p - s;
s = p + 1;
continue;
}
}
else if (*p == 'm' || *p == 'f' || *p == 'b')
{
if (*p == 'm') /* set color */
{
if (row == 0)
normvideo(); /* reset color */
else
textattr(row);
}
else if (*p == 'f') /* set foreground color */
textcolor(row);
else /* set background color */
textbackground(row);
len -= p - s;
s = p + 1;
continue;
}
}
}
putch(*s++);
}
else
write(1, s, (unsigned)len);
}
#ifdef DJGPP
/*
* DJGPP provides a kbhit() function that goes to the BIOS instead of DOS.
* This doesn't work for terminals connected to a serial port.
* Redefine kbhit() here to make it work.
*/
static int
vim_kbhit(void)
{
union REGS regs;
regs.h.ah = 0x0b;
(void)intdos(®s, ®s);
return regs.h.al;
}
#ifdef kbhit
# undef kbhit /* might have been defined in conio.h */
#endif
#define kbhit() vim_kbhit()
#endif
/*
* Simulate WaitForChar() by slowly polling with bioskey(1) or kbhit().
*
* If Vim should work over the serial line after a 'ctty com1' we must use
* kbhit() and getch(). (jw)
* Usually kbhit() is not used, because then CTRL-C and CTRL-P
* will be catched by DOS (mool).
*
* return TRUE if a character is available, FALSE otherwise
*/
#define FOREVER 1999999999L
static int
WaitForChar(msec)
long msec;
{
static int last_status = 0;
union REGS regs;
long starttime;
int x, y;
starttime = biostime(0, 0L);
for (;;)
{
#ifdef USE_MOUSE
long clicktime;
if (mouse_avail && mouse_active && !mouse_click)
{
regs.x.ax = 3;
int86(0x33, ®s, ®s); /* check mouse status */
/* only recognize button-down and button-up event */
x = regs.x.cx / mouse_x_div;
y = regs.x.dx / mouse_y_div;
if ((last_status == 0) != (regs.x.bx == 0))
{
if (last_status) /* button up */
mouse_click = MOUSE_RELEASE;
else /* button down */
{
/*
* Translate MSDOS mouse events to Vim mouse events.
* TODO: should handle middle mouse button, by pressing
* left and right at the same time.
*/
if (regs.x.bx & MSDOS_MOUSE_LEFT)
mouse_click = MOUSE_LEFT;
else if (regs.x.bx & MSDOS_MOUSE_RIGHT)
mouse_click = MOUSE_RIGHT;
else if (regs.x.bx & MSDOS_MOUSE_MIDDLE)
mouse_click = MOUSE_MIDDLE;
/*
* Find out if this is a multi-click
*/
clicktime = biostime(0, 0L);
if (mouse_click_x == x && mouse_click_y == y &&
mouse_topline == curwin->w_topline &&
mouse_click_count != 4 &&
mouse_click == mouse_last_click &&
clicktime < mouse_click_time + p_mouset / BIOSTICK)
++mouse_click_count;
else
mouse_click_count = 1;
mouse_click_time = clicktime;
mouse_last_click = mouse_click;
mouse_click_x = x;
mouse_click_y = y;
mouse_topline = curwin->w_topline;
SET_NUM_MOUSE_CLICKS(mouse_click, mouse_click_count);
}
}
else if (last_status && (x != mouse_x || y != mouse_y))
mouse_click = MOUSE_DRAG;
last_status = regs.x.bx;
if (mouse_hidden && mouse_x >= 0 && (mouse_x != x || mouse_y != y))
{
mouse_hidden = FALSE;
show_mouse(TRUE);
}
mouse_x = x;
mouse_y = y;
}
#endif
if ((p_biosk ? bioskey(1) : kbhit()) || cbrk_pressed
#ifdef USE_MOUSE
|| mouse_click
#endif
)
return TRUE;
/*
* Use biostime() to wait until our time is done.
* Don't use delay(), it doesn't work properly under Windows 95
* (because it disables interrupts?).
*/
if (msec != FOREVER && biostime(0, 0L) > starttime + msec / BIOSTICK)
break;
}
return FALSE;
}
/*
* mch_inchar(): low level input funcion.
* Get a characters from the keyboard.
* If time == 0 do not wait for characters.
* If time == n wait a short time for characters.
* If time == -1 wait forever for characters.
*
* return the number of characters obtained
*/
int
mch_inchar(buf, maxlen, time)
char_u *buf;
int maxlen;
long time;
{
int len = 0;
int c;
/*
* if we got a ctrl-C when we were busy, there will be a "^C" somewhere
* on the sceen, so we need to redisplay it.
*/
if (delayed_redraw)
{
delayed_redraw = FALSE;
update_screen(CLEAR);
setcursor();
flushbuf();
}
#ifdef USE_MOUSE
if (time != 0)
show_mouse(TRUE);
#endif
if (time >= 0)
{
if (WaitForChar(time) == 0) /* no character available */
{
#ifdef USE_MOUSE
show_mouse(FALSE);
#endif
return 0;
}
}
else /* time == -1 */
{
/*
* If there is no character available within 2 seconds (default)
* write the autoscript file to disk
*/
if (WaitForChar(p_ut) == 0)
updatescript(0);
}
WaitForChar(FOREVER); /* wait for key or mouse click */
/*
* Try to read as many characters as there are.
* Works for the controlling tty only.
*/
--maxlen; /* may get two chars at once */
/*
* we will get at least one key. Get more if they are available
* After a ctrl-break we have to read a 0 (!) from the buffer.
* bioskey(1) will return 0 if no key is available and when a
* ctrl-break was typed. When ctrl-break is hit, this does not always
* implies a key hit.
*/
cbrk_pressed = FALSE;
#ifdef USE_MOUSE
if (mouse_click && maxlen >= 6)
{
len = 5;
*buf++ = ESC + 128;
*buf++ = 'M';
*buf++ = mouse_click;
*buf++ = mouse_x + '!';
*buf++ = mouse_y + '!';
mouse_click = 0;
}
else
#endif
{
#ifdef USE_MOUSE
mouse_hidden = TRUE;
#endif
if (p_biosk)
{
while ((len == 0 || bioskey(1)) && len < maxlen)
{
c = bioskey(0); /* get the key */
/*
* translate a few things for inchar():
* 0x0000 == CTRL-break -> 3 (CTRL-C)
* 0x0300 == CTRL-@ -> NUL
* 0xnn00 == extended key code -> K_NUL, nn
* K_NUL -> K_NUL, 3
*/
if (c == 0)
c = 3;
else if (c == 0x0300)
c = NUL;
else if ((c & 0xff) == 0 || c == K_NUL)
{
if (c == K_NUL)
c = 3;
else
c >>= 8;
*buf++ = K_NUL;
++len;
}
*buf++ = c;
len++;
}
}
else
{
while ((len == 0 || kbhit()) && len < maxlen)
{
switch (c = getch())
{
case 0:
/* NUL means that there is another character.
* Get it immediately, because kbhit() doesn't always
* return TRUE for the second character.
*/
*buf++ = K_NUL;
*buf++ = getch();
len++;
break;
case K_NUL:
*buf++ = K_NUL;
*buf++ = 3;
++len;
break;
case 3:
cbrk_pressed = TRUE;
/*FALLTHROUGH*/
default:
*buf++ = c;
}
++len;
}
}
}
#ifdef USE_MOUSE
show_mouse(FALSE);
#endif
beep_count = 0; /* may beep again now that we got some chars */
return len;
}
/*
* return non-zero if a character is available
*/
int
mch_char_avail()
{
return WaitForChar(0L);
}
/*
* We have no job control, fake it by starting a new shell.
*/
void
mch_suspend()
{
suspend_shell();
}
extern int _fmode;
/*
* Prepare window for use by Vim.
* we do not use windows, there is not much to do here
*/
void
mch_windinit()
{
union REGS regs;
term_console = TRUE; /* assume using the console for the things here */
_fmode = O_BINARY; /* we do our own CR-LF translation */
flushbuf();
set_interrupts(TRUE); /* catch interrupts */
(void)ui_get_winsize();
#ifdef DJGPP
/*
* Use Long File Names by default, if $LFN not set.
*/
if (getenv("LFN") == NULL)
putenv("LFN=y");
#endif
#ifdef USE_MOUSE
/* find out if a MS compatible mouse is available */
regs.x.ax = 0;
(void)int86(0x33, ®s, ®s);
mouse_avail = regs.x.ax;
/* best guess for mouse coordinate computations */
if (Columns <= 40)
mouse_x_div = 16;
if (Rows == 30)
mouse_y_div = 16;
#endif
/*
* Try switching to 16 colors for background, instead of 8 colors and
* blinking. Does this always work? Can the old value be restored?
*/
regs.x.ax = 0x1003;
regs.h.bl = 0x00;
regs.h.bh = 0x00;
int86(0x10, ®s, ®s); /* check mouse status */
}
#ifdef USE_MOUSE
static void
show_mouse(on)
int on;
{
static int was_on = FALSE;
union REGS regs;
if (mouse_avail)
{
if (!mouse_active || mouse_hidden)
on = FALSE;
/*
* Careful: Each switch on must be compensated by exactly one switch
* off
*/
if (on && !was_on || !on && was_on)
{
was_on = on;
regs.x.ax = on ? 1 : 2;
int86(0x33, ®s, ®s); /* show mouse */
if (on)
mouse_area();
}
}
}
/*
* Set area where mouse can be moved to: The whole screen.
* Rows must be valid when calling!
*/
static void
mouse_area()
{
union REGS regs;
int mouse_y_max; /* maximum mouse y coord */
if (mouse_avail)
{
mouse_y_max = Rows * mouse_y_div - 1;
if (mouse_y_max < 199) /* is this needed? */
mouse_y_max = 199;
regs.x.cx = 0; /* mouse visible between cx and dx */
regs.x.dx = 639;
regs.x.ax = 7;
(void)int86(0x33, ®s, ®s);
regs.x.cx = 0; /* mouse visible between cx and dx */
regs.x.dx = mouse_y_max;
regs.x.ax = 8;
(void)int86(0x33, ®s, ®s);
}
}
#endif
int
mch_check_win(argc, argv)
int argc;
char **argv;
{
if (isatty(1))
return OK;
return FAIL;
}
/*
* Return TRUE if the input comes from a terminal, FALSE otherwise.
*/
int
mch_input_isatty()
{
if (isatty(read_cmd_fd))
return TRUE;
return FALSE;
}
#ifdef USE_FNAME_CASE
/*
* fname_case(): Set the case of the filename, if it already exists.
*/
void
fname_case(name)
char_u *name;
{
char_u *tail;
struct ffblk fb;
slash_adjust(name);
if (findfirst(name, &fb, 0) == 0)
{
tail = gettail(name);
if (STRLEN(tail) == STRLEN(fb.ff_name))
STRCPY(tail, fb.ff_name);
}
}
#endif
/*
* mch_settitle(): set titlebar of our window.
* Dos console has no title.
*/
void
mch_settitle(title, icon)
char_u *title;
char_u *icon;
{
}
/*
* Restore the window/icon title. (which we don't have)
*/
void
mch_restore_title(which)
int which;
{
}
int
mch_can_restore_title()
{
return FALSE;
}
int
mch_can_restore_icon()
{
return FALSE;
}
/*
* Insert user name in s[len].
*/
int
mch_get_user_name(s, len)
char_u *s;
int len;
{
*s = NUL;
return FAIL;
}
/*
* Insert host name is s[len].
*/
void
mch_get_host_name(s, len)
char_u *s;
int len;
{
#ifdef DJGPP
STRNCPY(s, "PC (32 bits Vim)", len);
#else
STRNCPY(s, "PC (16 bits Vim)", len);
#endif
}
/*
* return process ID
*/
long
mch_get_pid()
{
return (long)0;
}
/*
* Get name of current directory into buffer 'buf' of length 'len' bytes.
* Return OK for success, FAIL for failure.
*/
int
mch_dirname(buf, len)
char_u *buf;
int len;
{
return (getcwd(buf, len) != NULL ? OK : FAIL);
}
/*
* Change default drive (just like _chdrive of Borland C 3.1)
*/
static int
change_drive(drive)
int drive;
{
unsigned dummy;
union REGS regs;
regs.h.ah = 0x0e;
regs.h.dl = drive - 1;
intdos(®s, ®s); /* set default drive */
regs.h.ah = 0x19;
intdos(®s, ®s); /* get default drive */
if (regs.h.al == drive - 1)
return 0;
else
return -1;
}
/*
* Get absolute filename into buffer 'buf' of length 'len' bytes.
* All slashes are replaced with backslashes, to avoid trouble when comparing
* file names.
*
* return FAIL for failure, OK otherwise
*/
int
mch_FullName(fname, buf, len, force)
char_u *fname, *buf;
int len;
int force;
{
if (fname == NULL) /* always fail */
{
*buf = NUL;
return FAIL;
}
if (!force && mch_isFullName(fname)) /* allready expanded */
{
STRNCPY(buf, fname, len);
slash_adjust(buf);
return OK;
}
#ifdef __BORLANDC__ /* the old Turbo C does not have this */
if (_fullpath(buf, fname, len) == NULL)
{
STRNCPY(buf, fname, len); /* failed, use the relative path name */
slash_adjust(buf);
return FAIL;
}
slash_adjust(buf);
return OK;
#else /* almost the same as mch_FullName in os_unix.c */
{
int l;
char_u olddir[MAXPATHL];
char_u *p, *q;
int c;
int retval = OK;
*buf = 0;
/*
* change to the directory for a moment,
* and then do the getwd() (and get back to where we were).
* This will get the correct path name with "../" things.
*/
p = vim_strrchr(fname, '/');
q = vim_strrchr(fname, '\\');
if (q != NULL && (p == NULL || q > p))
p = q;
q = vim_strrchr(fname, ':');
if (q != NULL && (p == NULL || q > p))
p = q;
if (p != NULL)
{
if (getcwd(olddir, MAXPATHL) == NULL)
{
p = NULL; /* can't get current dir: don't chdir */
retval = FAIL;
}
else
{
q = p + 1;
c = *q; /* truncate at start of fname */
*q = NUL;
#ifdef DJGPP
STRCPY(buf, fname);
slash_adjust(buf); /* needed when fname starts with \ */
if (vim_chdir(buf)) /* change to the directory */
#else
if (vim_chdir(fname)) /* change to the directory */
#endif
retval = FAIL;
else
fname = q;
*q = c;
}
}
if (getcwd(buf, len) == NULL)
{
retval = FAIL;
*buf = NUL;
}
/*
* Concatenate the file name to the path.
*/
l = STRLEN(buf);
if (l && buf[l - 1] != '/' && buf[l - 1] != '\\')
strcat(buf, "/");
if (p)
vim_chdir(olddir);
strcat(buf, fname);
slash_adjust(buf);
return retval;
}
#endif
}
/*
* Replace all slashes by backslashes.
* This used to be the other way around, but MS-DOS sometimes has problems
* with slashes (e.g. in a command name). We can't have mixed slashes and
* backslashes, because comparing file names will not work correctly. The
* commands that use a file name should try to avoid the need to type a
* backslash twice.
*/
static void
slash_adjust(p)
char_u *p;
{
#ifdef DJGPP
/* DJGPP can't handle a file name that starts with a backslash, and when it
* starts with a slash there should be no backslashes */
if (*p == '\\' || *p == '/')
while (*p)
{
if (*p == '\\')
*p = '/';
++p;
}
else
#endif
while (*p)
{
if (*p == '/')
*p = '\\';
++p;
}
}
/*
* return TRUE is fname is an absolute path name
*/
int
mch_isFullName(fname)
char_u *fname;
{
return (vim_strchr(fname, ':') != NULL);
}
/*
* get file permissions for 'name'
* -1 : error
* else FA_attributes defined in dos.h
*/
long
getperm(name)
char_u *name;
{
int r;
r = _chmod(name, 0, 0); /* get file mode */
return r;
}
/*
* set file permission for 'name' to 'perm'
*
* return FAIL for failure, OK otherwise
*/
int
setperm(name, perm)
char_u *name;
long perm;
{
perm |= FA_ARCH; /* file has changed, set archive bit */
return (_chmod((char *)name, 1, (int)perm) == -1 ? FAIL : OK);
}
/*
* return TRUE if "name" is a directory
* return FALSE if "name" is not a directory
* return FALSE for error
*
* beware of a trailing backslash
*/
int
mch_isdir(name)
char_u *name;
{
int f;
char_u *p;
p = name + strlen(name);
if (p > name)
--p;
if (*p == '\\') /* remove trailing backslash for a moment */
*p = NUL;
else
p = NULL;
f = _chmod(name, 0, 0);
if (p != NULL)
*p = '\\'; /* put back backslash */
if (f == -1)
return FALSE; /* file does not exist at all */
if ((f & FA_DIREC) == 0)
return FALSE; /* not a directory */
return TRUE;
}
/*
* Careful: mch_windexit() may be called before mch_windinit()!
*/
void
mch_windexit(r)
int r;
{
settmode(TMODE_COOK);
stoptermcap();
set_interrupts(FALSE); /* restore interrupts */
outchar('\r');
outchar('\n');
flushbuf();
ml_close_all(TRUE); /* remove all memfiles */
exit(r);
}
#ifdef DJGPP
# define INT_ARG int
#else
# define INT_ARG
#endif
/*
* function for ctrl-break interrupt
*/
static void interrupt
#ifdef DJGPP
catch_cbrk(int a)
#else
catch_cbrk()
#endif
{
cbrk_pressed = TRUE;
ctrlc_pressed = TRUE;
}
/*
* ctrl-break handler for DOS. Never called when a ctrl-break is typed, because
* we catch interrupt 1b. If you type ctrl-C while Vim is waiting for a
* character this function is not called. When a ctrl-C is typed while Vim is
* busy this function may be called. By that time a ^C has been displayed on
* the screen, so we have to redisplay the screen. We can't do that here,
* because we may be called by DOS. The redraw is in mch_inchar().
*/
static int
cbrk_handler()
{
delayed_redraw = TRUE;
return 1; /* resume operation after ctrl-break */
}
/*
* function for critical error interrupt
* For DOS 1 and 2 return 0 (Ignore).
* For DOS 3 and later return 3 (Fail)
*/
static void interrupt
catch_cint(bp, di, si, ds, es, dx, cx, bx, ax)
unsigned bp, di, si, ds, es, dx, cx, bx, ax;
{
ax = (ax & 0xff00); /* set AL to 0 */
if (_osmajor >= 3)
ax |= 3; /* set AL to 3 */
}
/*
* set the tty in (raw) ? "raw" : "cooked" mode
* Does not change the tty, as bioskey() and kbhit() work raw all the time.
*/
void
mch_settmode(tmode)
int tmode;
{
}
/*
* Set the interrupt vectors for use with Vim on or off.
*/
static void
set_interrupts(on)
int on; /* TRUE means as used within Vim */
{
static int saved_cbrk;
#ifndef DJGPP
static void interrupt (*old_cint)();
#endif
static void interrupt (*old_cbrk)(INT_ARG);
if (on)
{
saved_cbrk = getcbrk(); /* save old ctrl-break setting */
setcbrk(0); /* do not check for ctrl-break */
#ifdef DJGPP
old_cbrk = signal(SIGINT, catch_cbrk); /* critical error interrupt */
#else
old_cint = getvect(0x24); /* save old critical error interrupt */
setvect(0x24, catch_cint); /* install our critical error interrupt */
old_cbrk = getvect(0x1B); /* save old ctrl-break interrupt */
setvect(0x1B, catch_cbrk); /* install our ctrl-break interrupt */
ctrlbrk(cbrk_handler); /* vim's ctrl-break handler */
#endif
if (term_console)
outstr(T_ME); /* set colors */
}
else
{
setcbrk(saved_cbrk); /* restore ctrl-break setting */
#ifdef DJGPP
signal(SIGINT,old_cbrk); /* critical error interrupt */
#else
setvect(0x24, old_cint); /* restore critical error interrupt */
setvect(0x1B, old_cbrk); /* restore ctrl-break interrupt */
#endif
/* restore ctrl-break handler, how ??? */
if (term_console)
normvideo(); /* restore screen colors */
}
}
#ifdef USE_MOUSE
void
mch_setmouse(on)
int on;
{
mouse_active = on;
mouse_hidden = TRUE; /* dont show it until moved */
}
#endif
/*
* set screen mode
* return FAIL for failure, OK otherwise
*/
int
mch_screenmode(arg)
char_u *arg;
{
int mode;
int i;
static char_u *(names[]) = {"BW40", "C40", "BW80", "C80", "MONO", "C4350"};
static int modes[] = { BW40, C40, BW80, C80, MONO, C4350};
mode = -1;
if (isdigit(*arg)) /* mode number given */
mode = atoi((char *)arg);
else
{
for (i = 0; i < sizeof(names) / sizeof(char_u *); ++i)
if (stricmp((char *)names[i], (char *)arg) == 0)
{
mode = modes[i];
break;
}
}
if (mode == -1)
{
EMSG("Unsupported screen mode");
return FAIL;
}
textmode(mode); /* use Borland function */
/* Screen colors may have changed. */
outstr(T_ME);
#ifdef USE_MOUSE
if (mode <= 1 || mode == 4 || mode == 5 || mode == 13 || mode == 0x13)
mouse_x_div = 16;
else
mouse_x_div = 8;
if (mode == 0x11 || mode == 0x12)
mouse_y_div = 16;
else if (mode == 0x10)
mouse_y_div = 14;
else
mouse_y_div = 8;
ui_get_winsize(); /* Rows is used in mouse_area() */
mouse_area(); /* set area where mouse can go */
#endif
return OK;
}
/*
* Structure used by Turbo-C/Borland-C to store video parameters.
*/
#ifndef DJGPP
extern struct text_info _video;
#endif
/*
* try to get the real window size
* return FAIL for failure, OK otherwise
*/
int
mch_get_winsize()
{
int i;
struct text_info ti;
/*
* The screenwidth is returned by the BIOS OK.
* The screenheight is in a location in the bios RAM, if the display is EGA or
* VGA.
*/
if (!term_console)
return FAIL;
gettextinfo(&ti);
Columns = ti.screenwidth;
Rows = ti.screenheight;
#ifndef DJGPP
if (ti.currmode > 10)
Rows = *(char far *)MK_FP(0x40, 0x84) + 1;
#endif
/*
* don't call set_window() when not doing full screen, since it will move
* the cursor. Also skip this when exiting.
*/
if (full_screen && !exiting)
set_window();
if (Columns < MIN_COLUMNS || Rows < MIN_ROWS + 1)
{
/* these values are overwritten by termcap size or default */
Columns = 80;
Rows = 25;
return FAIL;
}
check_winsize();
return OK;
}
/*
* Set the active window for delline/insline.
*/
void
set_window()
{
#ifndef DJGPP
_video.screenheight = Rows;
#endif
window(1, 1, Columns, Rows);
screen_start();
}
void
mch_set_winsize()
{
/* should try to set the window size to Rows and Columns */
/* may involve switching display mode.... */
#ifdef USE_MOUSE
mouse_area(); /* set area where mouse can go */
#endif
}
/*
* call shell, return FAIL for failure, OK otherwise
*/
int
mch_call_shell(cmd, options)
char_u *cmd;
int options; /* SHELL_FILTER if called by do_filter() */
/* SHELL_COOKED if term needs cooked mode */
/* SHELL_EXPAND if called by ExpandWildCards() */
{
int x;
char_u *newcmd;
flushbuf();
if (options & SHELL_COOKED)
settmode(TMODE_COOK); /* set to normal mode */
set_interrupts(FALSE); /* restore interrupts */
if (cmd == NULL)
x = system(p_sh);
else
{ /* we use "command" to start the shell, slow but easy */
newcmd = alloc(STRLEN(p_sh) + STRLEN(cmd) + 5);
if (newcmd == NULL)
x = 1;
else
{
sprintf(newcmd, "%s %s %s", p_sh, p_shcf, cmd);
x = system(newcmd);
vim_free(newcmd);
}
}
settmode(TMODE_RAW); /* set to raw mode */
set_interrupts(TRUE); /* catch interrupts */
if (x && !expand_interactively)
{
msg_putchar('\n');
msg_outnum((long)x);
MSG_PUTS(" returned\n");
}
/* resettitle(); we don't have titles */
(void)ui_get_winsize(); /* display mode may have been changed */
return (x ? FAIL : OK);
}
/*
* check for an "interrupt signal": CTRL-break or CTRL-C
*/
void
mch_breakcheck()
{
if (ctrlc_pressed)
{
ctrlc_pressed = FALSE;
got_int = TRUE;
}
}
#define FL_CHUNK 32
static void
addfile(fl, f, isdir)
FileList *fl;
char_u *f;
int isdir;
{
char_u *p;
if (!fl->file)
{
fl->file = (char_u **)alloc(sizeof(char_u *) * FL_CHUNK);
if (!fl->file)
return;
fl->nfiles = 0;
fl->maxfiles = FL_CHUNK;
}
if (fl->nfiles >= fl->maxfiles)
{
char_u **t;
int i;
t = (char_u **)lalloc((long_u)(sizeof(char_u *) * (fl->maxfiles + FL_CHUNK)), TRUE);
if (!t)
return;
for (i = fl->nfiles - 1; i >= 0; i--)
t[i] = fl->file[i];
vim_free(fl->file);
fl->file = t;
fl->maxfiles += FL_CHUNK;
}
p = alloc((unsigned)(STRLEN(f) + 1 + isdir));
if (p)
{
STRCPY(p, f);
slash_adjust(p);
/*
* Append a backslash after directory names.
*/
if (isdir)
strcat(p, "\\");
}
fl->file[fl->nfiles++] = p;
}
static int
pstrcmp(a, b)
char_u **a, **b;
{
return (stricmp(*a, *b));
}
int
mch_has_wildcard(s)
char_u *s;
{
for ( ; *s; ++s)
if (*s == '?' || *s == '*' || *s == '$')
return TRUE;
return FALSE;
}
static void
strlowcpy(d, s)
char_u *d, *s;
{
#ifdef DJGPP
if (USE_LONG_FNAME) /* don't lower case on Windows 95/NT systems */
while (*s)
*d++ = *s++;
else
#endif
while (*s)
*d++ = TO_LOWER(*s++);
*d = NUL;
}
static int
expandpath(fl, path, fonly, donly, notf)
FileList *fl;
char_u *path;
int fonly, donly, notf;
{
char_u *buf;
char_u *p, *s, *e;
int lastn, c, retval;
struct ffblk fb;
lastn = fl->nfiles;
buf = alloc(STRLEN(path) + BASENAMELEN + 5); /* make room for file name */
if (buf == NULL)
return 1;
/*
* Find the first part in the path name that contains a wildcard.
* Copy it into buf, including the preceding characters.
*/
p = buf;
s = NULL;
e = NULL;
while (*path)
{
if (*path == '\\' || *path == ':' || *path == '/')
{
if (e)
break;
else
s = p;
}
if (*path == '*' || *path == '?')
e = p;
*p++ = *path++;
}
e = p;
if (s)
s++;
else
s = buf;
/* if the file name ends in "*" and does not contain a ".", addd ".*" */
if (e[-1] == '*' && vim_strchr(s, '.') == NULL)
{
*e++ = '.';
*e++ = '*';
}
/* now we have one wildcard component between s and e */
*e = NUL;
retval = 0;
/* If we are expanding wildcards we try both files and directories */
if ((c = findfirst(buf, &fb, (*path || !notf) ? FA_DIREC : 0)) != 0)
{
/* not found */
STRCPY(e, path);
if (notf)
addfile(fl, buf, FALSE);
vim_free(buf);
return 1; /* unexpanded or empty */
}
while (!c)
{
strlowcpy(s, fb.ff_name); /* may expand "*" to "12345678.123" */
/* ignore "." and ".." */
if (*s != '.' || (s[1] != NUL && (s[1] != '.' || s[2] != NUL)))
{
strcat(buf, path);
if (!mch_has_wildcard(path))
addfile(fl, buf, mch_isdir(buf));
else
retval |= expandpath(fl, buf, fonly, donly, notf);
}
c = findnext(&fb);
}
vim_free(buf);
qsort(fl->file + lastn, fl->nfiles - lastn, sizeof(char_u *), pstrcmp);
return retval;
}
/*
* MSDOS rebuilt of Scott Ballantynes ExpandWildCards for amiga/arp.
* jw
*/
int
ExpandWildCards(num_pat, pat, num_file, file, files_only, list_notfound)
int num_pat;
char_u **pat;
int *num_file;
char_u ***file;
int files_only, list_notfound;
{
int i, retval = 0;
FileList f;
char_u *p;
f.file = NULL;
f.nfiles = 0;
for (i = 0; i < num_pat; i++)
{
/*
* First expand environment variables.
*/
if (vim_strchr(pat[i], '$') != NULL)
{
p = alloc(MAXPATHL);
if (p != NULL)
expand_env(pat[i], p, MAXPATHL);
else
p = pat[i];
}
else
p = pat[i];
if (!mch_has_wildcard(p))
addfile(&f, p, files_only ? FALSE : mch_isdir(p));
else
retval |= expandpath(&f, p, files_only, 0, list_notfound);
if (p != pat[i])
vim_free(p);
}
*num_file = f.nfiles;
*file = (*num_file > 0) ? f.file : (char_u **)"";
return (*num_file > 0) ? OK : FAIL;
}
#ifdef USE_VIM_CHDIR
/*
* The normal chdir() does not change the default drive.
* This one does.
*/
int
vim_chdir(path)
char *path;
{
if (path[0] == NUL) /* just checking... */
return 0;
if (path[1] == ':') /* has a drive name */
{
if (change_drive(TO_UPPER(path[0]) - 'A' + 1))
return -1; /* invalid drive name */
path += 2;
}
if (*path == NUL) /* drive name only */
return 0;
return chdir(path); /* let the normal chdir() do the rest */
}
#endif
#ifdef DJGPP
/*
* djgpp_rename() works around a bug in rename (aka MoveFile) in
* Windows 95: rename("foo.bar", "foo.bar~") will generate a
* file whose shortfilename is "FOO.BAR" (its longfilename will
* be correct: "foo.bar~"). Because a file can be accessed by
* either its SFN or its LFN, "foo.bar" has effectively been
* renamed to "foo.bar", which is not at all what was wanted. This
* seems to happen only when renaming files with three-character
* extensions by appending a suffix that does not include ".".
* Windows NT gets it right, however, with an SFN of "FOO~1.BAR".
* This works like win95rename in os_win32.c, but is a bit simpler.
*
* Like rename(), returns 0 upon success, non-zero upon failure.
* Should probably set errno appropriately when errors occur.
*/
#undef rename
int
djgpp_rename(const char *OldFile, const char *NewFile)
{
char_u *TempFile;
int retval;
int fd;
/* rename() works correctly without long file names, so use that */
if (!_USE_LFN)
return rename(OldFile, NewFile);
if ((TempFile = alloc((unsigned)(STRLEN(OldFile) + 13))) == NULL)
return -1;
STRCPY(TempFile, OldFile);
STRCPY(gettail(TempFile), "axlqwqhy.ba~");
if (rename(OldFile, TempFile))
retval = -1;
else
{
/* now create an empty file called OldFile; this prevents
* the operating system using OldFile as an alias (SFN)
* if we're renaming within the same directory. For example,
* we're editing a file called filename.asc.txt by its SFN,
* filena~1.txt. If we rename filena~1.txt to filena~1.txt~
* (i.e., we're making a backup while writing it), the SFN
* for filena~1.txt~ will be filena~1.txt, by default, which
* will cause all sorts of problems later in buf_write. So, we
* create an empty file called filena~1.txt and the system will have
* to find some other SFN for filena~1.txt~, such as filena~2.txt
*/
if ((fd = open(OldFile, O_RDWR|O_CREAT|O_EXCL, 0444)) < 0)
return -1;
retval = rename(TempFile, NewFile);
close(fd);
vim_remove((char_u *)OldFile);
}
vim_free(TempFile);
return retval; /* success */
}
#endif
/*
* Special version of getenv(): use $HOME when $VIM not defined.
*/
char_u *
vim_getenv(var)
char_u *var;
{
char_u *retval;
retval = (char_u *)getenv((char *)var);
if (retval == NULL && STRCMP(var, "VIM") == 0)
retval = (char_u *)getenv("HOME");
return retval;
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.