/* Lisp functions pertaining to editing.
- Copyright (C) 1985,86,87,89,93,94 Free Software Foundation, Inc.
+ Copyright (C) 1985,86,87,89,93,94,95 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
+extern void insert_from_buffer ();
+static long difftm ();
+
/* Some static data, and a function to initialize it for each run */
Lisp_Object Vsystem_name;
#endif /* not CANNOT_DUMP */
pw = (struct passwd *) getpwuid (getuid ());
+#ifdef MSDOS
+ /* We let the real user name default to "root" because that's quite
+ accurate on MSDOG and because it lets Emacs find the init file.
+ (The DVX libraries override the Djgpp libraries here.) */
+ Vuser_real_name = build_string (pw ? pw->pw_name : "root");
+#else
Vuser_real_name = build_string (pw ? pw->pw_name : "unknown");
+#endif
/* Get the effective user name, by consulting environment variables,
or the effective uid if those are unset. */
user_name = (char *) getenv ("LOGNAME");
if (!user_name)
+#ifdef WINDOWSNT
+ user_name = (char *) getenv ("USERNAME"); /* it's USERNAME on NT */
+#else /* WINDOWSNT */
user_name = (char *) getenv ("USER");
+#endif /* WINDOWSNT */
if (!user_name)
{
pw = (struct passwd *) getpwuid (geteuid ());
#ifdef AMPERSAND_FULL_NAME
p = XSTRING (Vuser_full_name)->data;
- q = (char *) index (p, '&');
+ q = (unsigned char *) index (p, '&');
/* Substitute the login name for the &, upcasing the first character. */
if (q)
{
- r = (char *) alloca (strlen (p) + XSTRING (Vuser_name)->size + 1);
+ r = (unsigned char *) alloca (strlen (p) + XSTRING (Vuser_name)->size + 1);
bcopy (p, r, q - p);
r[q - p] = 0;
strcat (r, XSTRING (Vuser_name)->data);
Vuser_full_name = build_string (r);
}
#endif /* AMPERSAND_FULL_NAME */
+
+ p = (unsigned char *) getenv ("NAME");
+ if (p)
+ Vuser_full_name = build_string (p);
}
\f
DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0,
p = XSTRING (str);
if (p->size)
- XFASTINT (val) = ((unsigned char *) p->data)[0];
+ XSETFASTINT (val, ((unsigned char *) p->data)[0]);
else
- XFASTINT (val) = 0;
+ XSETFASTINT (val, 0);
return val;
}
\f
()
{
Lisp_Object temp;
- XFASTINT (temp) = point;
+ XSETFASTINT (temp, point);
return temp;
}
()
{
Lisp_Object temp;
- XFASTINT (temp) = Z - BEG;
+ XSETFASTINT (temp, Z - BEG);
return temp;
}
()
{
Lisp_Object temp;
- XFASTINT (temp) = BEGV;
+ XSETFASTINT (temp, BEGV);
return temp;
}
()
{
Lisp_Object temp;
- XFASTINT (temp) = ZV;
+ XSETFASTINT (temp, ZV);
return temp;
}
{
Lisp_Object temp;
if (point >= ZV)
- XFASTINT (temp) = 0;
+ XSETFASTINT (temp, 0);
else
- XFASTINT (temp) = FETCH_CHAR (point);
+ XSETFASTINT (temp, FETCH_CHAR (point));
return temp;
}
{
Lisp_Object temp;
if (point <= BEGV)
- XFASTINT (temp) = 0;
+ XSETFASTINT (temp, 0);
else
- XFASTINT (temp) = FETCH_CHAR (point - 1);
+ XSETFASTINT (temp, FETCH_CHAR (point - 1));
return temp;
}
n = XINT (pos);
if (n < BEGV || n >= ZV) return Qnil;
- XFASTINT (val) = FETCH_CHAR (n);
+ XSETFASTINT (val, FETCH_CHAR (n));
return val;
}
\f
-DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 0, 0,
+DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0,
"Return the name under which the user logged in, as a string.\n\
This is based on the effective uid, not the real uid.\n\
Also, if the environment variable LOGNAME or USER is set,\n\
-that determines the value of this function.")
- ()
+that determines the value of this function.\n\n\
+If optional argument UID is an integer, return the login name of the user\n\
+with that uid, or nil if there is no such user.")
+ (uid)
+ Lisp_Object uid;
{
- return Vuser_name;
+ struct passwd *pw;
+
+ /* Set up the user name info if we didn't do it before.
+ (That can happen if Emacs is dumpable
+ but you decide to run `temacs -l loadup' and not dump. */
+ if (INTEGERP (Vuser_name))
+ init_editfns ();
+
+ if (NILP (uid))
+ return Vuser_name;
+
+ CHECK_NUMBER (uid, 0);
+ pw = (struct passwd *) getpwuid (XINT (uid));
+ return (pw ? build_string (pw->pw_name) : Qnil);
}
DEFUN ("user-real-login-name", Fuser_real_login_name, Suser_real_login_name,
`user-login-name' when running under `su'.")
()
{
+ /* Set up the user name info if we didn't do it before.
+ (That can happen if Emacs is dumpable
+ but you decide to run `temacs -l loadup' and not dump. */
+ if (INTEGERP (Vuser_name))
+ init_editfns ();
return Vuser_real_name;
}
Lisp_Object result[3];
EMACS_GET_TIME (t);
- XSET (result[0], Lisp_Int, (EMACS_SECS (t) >> 16) & 0xffff);
- XSET (result[1], Lisp_Int, (EMACS_SECS (t) >> 0) & 0xffff);
- XSET (result[2], Lisp_Int, EMACS_USECS (t));
+ XSETINT (result[0], (EMACS_SECS (t) >> 16) & 0xffff);
+ XSETINT (result[1], (EMACS_SECS (t) >> 0) & 0xffff);
+ XSETINT (result[2], EMACS_USECS (t));
return Flist (3, result);
}
%Y is replaced by the year with century.\n\
%Z is replaced by the time zone abbreviation.\n\
\n\
-The number of options reflects the strftime(3) function.")
+The number of options reflects the `strftime' function.")
(format_string, time)
Lisp_Object format_string, time;
{
while (1)
{
char *buf = (char *) alloca (size);
- if (strftime (buf, size, XSTRING (format_string)->data,
- localtime (&value)))
+ if (emacs_strftime (buf, size, XSTRING (format_string)->data,
+ localtime (&value)))
return build_string (buf);
/* If buffer was too small, make it bigger. */
size *= 2;
}
}
+DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0,
+ "Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE).\n\
+The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED)\n\
+or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil'\n\
+to use the current time. The list has the following nine members:\n\
+SEC is an integer between 0 and 59. MINUTE is an integer between 0 and 59.\n\
+HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31.\n\
+MONTH is an integer between 1 and 12. YEAR is an integer indicating the\n\
+four-digit year. DOW is the day of week, an integer between 0 and 6, where\n\
+0 is Sunday. DST is t if daylight savings time is effect, otherwise nil.\n\
+ZONE is an integer indicating the number of seconds east of Greenwich.\n\
+(Note that Common Lisp has different meanings for DOW and ZONE.)")
+ (specified_time)
+ Lisp_Object specified_time;
+{
+ time_t time_spec;
+ struct tm save_tm;
+ struct tm *decoded_time;
+ Lisp_Object list_args[9];
+
+ if (! lisp_time_argument (specified_time, &time_spec))
+ error ("Invalid time specification");
+
+ decoded_time = localtime (&time_spec);
+ XSETFASTINT (list_args[0], decoded_time->tm_sec);
+ XSETFASTINT (list_args[1], decoded_time->tm_min);
+ XSETFASTINT (list_args[2], decoded_time->tm_hour);
+ XSETFASTINT (list_args[3], decoded_time->tm_mday);
+ XSETFASTINT (list_args[4], decoded_time->tm_mon + 1);
+ XSETFASTINT (list_args[5], decoded_time->tm_year + 1900);
+ XSETFASTINT (list_args[6], decoded_time->tm_wday);
+ list_args[7] = (decoded_time->tm_isdst)? Qt : Qnil;
+
+ /* Make a copy, in case gmtime modifies the struct. */
+ save_tm = *decoded_time;
+ decoded_time = gmtime (&time_spec);
+ if (decoded_time == 0)
+ list_args[8] = Qnil;
+ else
+ XSETINT (list_args[8], difftm (&save_tm, decoded_time));
+ return Flist (9, list_args);
+}
+
+DEFUN ("encode-time", Fencode_time, Sencode_time, 6, 7, 0,
+ "Convert SEC, MIN, HOUR, DAY, MONTH, YEAR and ZONE to internal time.\n\
+This is the reverse operation of `decode-time', which see. ZONE defaults\n\
+to the current time zone and daylight savings time if not specified; if\n\
+specified, it can be either a list (as from `current-time-zone') or an\n\
+integer (as from `decode-time'), and is applied without consideration for\n\
+daylight savings time.\n\
+If YEAR is less than 100, values in the range 0 through 69 are treated\n\
+as 2000 through 2069; values 70 through 99 are treated as 1970...1999.")
+ (sec, min, hour, day, month, year, zone)
+ Lisp_Object sec, min, hour, day, month, year, zone;
+{
+ time_t time;
+ int fullyear, mon, days, seconds, tz = 0;
+ static char days_per_month[11] = { 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31 };
+
+ CHECK_NATNUM (sec, 0);
+ CHECK_NATNUM (min, 1);
+ CHECK_NATNUM (hour, 2);
+ CHECK_NATNUM (day, 3);
+ CHECK_NATNUM (month, 4);
+ CHECK_NATNUM (year, 5);
+
+ fullyear = XINT (year);
+ if (fullyear < 100)
+ {
+ if (fullyear < 70) /* Epoch is 1970. */
+ fullyear += 2000;
+ else
+ fullyear += 1900;
+ }
+
+ /* Adjust incoming datespec to epoch = March 1, year 0. */
+ mon = XINT (month) - 1 + 10;
+ fullyear += mon/12 - 1;
+ mon %= 12;
+
+ days = XINT (day) - 1; /* day of month */
+ while (mon-- > 0) /* day of year */
+ days += days_per_month[mon];
+ days += 146097 * (fullyear/400); /* 400 years = 146097 days */
+ fullyear %= 400;
+ days += 36524 * (fullyear/100); /* 100 years = 36524 days */
+ fullyear %= 100;
+ days += 1461 * (fullyear/4); /* 4 years = 1461 days */
+ fullyear %= 4;
+ days += 365 * fullyear; /* 1 year = 365 days */
+
+ /* Adjust computed datespec to epoch = January 1, 1970. */
+ days += 59; /* March 1 is 59th day. */
+ days -= 719527; /* 1970 years = 719527 days */
+
+ seconds = XINT (sec) + 60 * XINT (min) + 3600 * XINT (hour);
+
+ if (sizeof (time_t) == 4
+ && ((days+(seconds/86400) > 24854) || (days+(seconds/86400) < -24854)))
+ error ("the specified time is outside the representable range");
+
+ time = days * 86400 + seconds;
+
+ /* We have the correct value for UTC. Adjust for timezones. */
+ if (NILP (zone))
+ {
+ struct tm gmt, *t;
+ time_t adjusted_time;
+ int adjusted_tz;
+ /* If the system does not use timezones, gmtime returns 0, and we
+ already have the correct value, by definition. */
+ if ((t = gmtime (&time)) != 0)
+ {
+ gmt = *t;
+ t = localtime (&time);
+ tz = difftm (t, &gmt);
+ /* The timezone returned is that at the specified Universal Time,
+ not the local time, which is what we want. Adjust, repeat. */
+ adjusted_time = time - tz;
+ gmt = *gmtime (&adjusted_time); /* this is safe now */
+ t = localtime (&adjusted_time);
+ adjusted_tz = difftm (t, &gmt);
+ /* In case of discrepancy, adjust again for extra accuracy. */
+ if (adjusted_tz != tz)
+ {
+ adjusted_time = time - adjusted_tz;
+ gmt = *gmtime (&adjusted_time);
+ t = localtime (&adjusted_time);
+ adjusted_tz = difftm (t, &gmt);
+ }
+ tz = adjusted_tz;
+ }
+ }
+ else
+ {
+ if (CONSP (zone))
+ zone = Fcar (zone);
+ CHECK_NUMBER (zone, 6);
+ tz = XINT (zone);
+ }
+
+ return make_time (time - tz);
+}
+
DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0,
"Return the current time, as a human-readable string.\n\
Programs can use this function to decode a time,\n\
n -= strlen;
}
if (n > 0)
- insert (string, n);
+ {
+ if (!NILP (inherit))
+ insert_and_inherit (string, n);
+ else
+ insert (string, n);
+ }
return Qnil;
}
}
DEFUN ("buffer-string", Fbuffer_string, Sbuffer_string, 0, 0, 0,
- "Return the contents of the current buffer as a string.")
+ "Return the contents of the current buffer as a string.\n\
+If narrowing is in effect, this function returns only the visible part\n\
+of the buffer.")
()
{
return make_buffer_string (BEGV, ZV);
(buf, b, e)
Lisp_Object buf, b, e;
{
- register int beg, end, temp, len, opoint, start;
+ register int beg, end, temp;
register struct buffer *bp;
Lisp_Object buffer;
if (beg > end)
temp = beg, beg = end, end = temp;
- /* Move the gap or create enough gap in the current buffer. */
-
- if (point != GPT)
- move_gap (point);
- if (GAP_SIZE < end - beg)
- make_gap (end - beg - GAP_SIZE);
-
- len = end - beg;
- start = beg;
- opoint = point;
-
- if (!(BUF_BEGV (bp) <= beg
- && beg <= end
- && end <= BUF_ZV (bp)))
+ if (!(BUF_BEGV (bp) <= beg && end <= BUF_ZV (bp)))
args_out_of_range (b, e);
- /* Now the actual insertion will not do any gap motion,
- so it matters not if BUF is the current buffer. */
- if (beg < BUF_GPT (bp))
- {
- insert (BUF_CHAR_ADDRESS (bp, beg), min (end, BUF_GPT (bp)) - beg);
- beg = min (end, BUF_GPT (bp));
- }
- if (beg < end)
- insert (BUF_CHAR_ADDRESS (bp, beg), end - beg);
-
- /* Only defined if Emacs is compiled with USE_TEXT_PROPERTIES */
- graft_intervals_into_buffer (copy_intervals (bp->intervals, start, len),
- opoint, len, current_buffer, 0);
-
+ insert_from_buffer (bp, beg, end - beg, 0);
return Qnil;
}
return make_number (0);
}
\f
+static Lisp_Object
+subst_char_in_region_unwind (arg)
+ Lisp_Object arg;
+{
+ return current_buffer->undo_list = arg;
+}
+
DEFUN ("subst-char-in-region", Fsubst_char_in_region,
Ssubst_char_in_region, 4, 5, 0,
"From START to END, replace FROMCHAR with TOCHAR each time it occurs.\n\
{
register int pos, stop, look;
int changed = 0;
+ int count = specpdl_ptr - specpdl;
validate_region (&start, &end);
CHECK_NUMBER (fromchar, 2);
stop = XINT (end);
look = XINT (fromchar);
+ /* If we don't want undo, turn off putting stuff on the list.
+ That's faster than getting rid of things,
+ and it prevents even the entry for a first change. */
+ if (!NILP (noundo))
+ {
+ record_unwind_protect (subst_char_in_region_unwind,
+ current_buffer->undo_list);
+ current_buffer->undo_list = Qt;
+ }
+
while (pos < stop)
{
if (FETCH_CHAR (pos) == look)
if (! NILP (noundo))
{
- if (MODIFF - 1 == current_buffer->save_modified)
- current_buffer->save_modified++;
+ if (MODIFF - 1 == SAVE_MODIFF)
+ SAVE_MODIFF++;
if (MODIFF - 1 == current_buffer->auto_save_modified)
current_buffer->auto_save_modified++;
}
signal_after_change (XINT (start),
stop - XINT (start), stop - XINT (start));
+ unbind_to (count, Qnil);
return Qnil;
}
}
}
- XFASTINT (z) = cnt;
+ XSETFASTINT (z, cnt);
return (z);
}
(b, e)
register Lisp_Object b, e;
{
- register EMACS_INT i;
-
CHECK_NUMBER_COERCE_MARKER (b, 0);
CHECK_NUMBER_COERCE_MARKER (e, 1);
if (XINT (b) > XINT (e))
{
- i = XFASTINT (b);
- b = e;
- XFASTINT (e) = i;
+ Lisp_Object tem;
+ tem = b; b = e; e = tem;
}
if (!(BEG <= XINT (b) && XINT (b) <= XINT (e) && XINT (e) <= Z))
/* Note: I tried using markers here, but it does not win
because insertion at the end of the saved region
does not advance mh and is considered "outside" the saved region. */
- XFASTINT (bottom) = BEGV - BEG;
- XFASTINT (top) = Z - ZV;
+ XSETFASTINT (bottom, BEGV - BEG);
+ XSETFASTINT (top, Z - ZV);
return Fcons (Fcurrent_buffer (), Fcons (bottom, top));
}
}
else if (SYMBOLP (args[n]))
{
- XSET (args[n], Lisp_String, XSYMBOL (args[n])->name);
+ XSETSTRING (args[n], XSYMBOL (args[n])->name);
goto string;
}
else if (STRINGP (args[n]))
union { double d; int half[2]; } u;
u.d = XFLOAT (args[n])->data;
- strings[i++] = (unsigned char *) u.half[0];
- strings[i++] = (unsigned char *) u.half[1];
+ strings[i++] = (unsigned char *) (EMACS_INT) u.half[0];
+ strings[i++] = (unsigned char *) (EMACS_INT) u.half[1];
}
#endif
else
amt1 = (end2 - start2) + (start2 - end1);
amt2 = (end1 - start1) + (start2 - end1);
- for (marker = current_buffer->markers; !NILP (marker);
+ for (marker = BUF_MARKERS (current_buffer); !NILP (marker);
marker = XMARKER (marker)->chain)
{
mpos = Fmarker_position (marker);
#ifdef USE_TEXT_PROPERTIES
INTERVAL cur_intv, tmp_interval1, tmp_interval_mid, tmp_interval2;
- cur_intv = current_buffer->intervals;
+ cur_intv = BUF_INTERVALS (current_buffer);
#endif /* USE_TEXT_PROPERTIES */
validate_region (&startr1, &endr1);
defsubr (&Semacs_pid);
defsubr (&Scurrent_time);
defsubr (&Sformat_time_string);
+ defsubr (&Sdecode_time);
+ defsubr (&Sencode_time);
defsubr (&Scurrent_time_string);
defsubr (&Scurrent_time_zone);
defsubr (&Ssystem_name);
HCoop / bpt / emacs.git / blobdiff