1 /* Lisp functions pertaining to editing.
2 Copyright (C) 1985,86,87,89,93,94,95 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 #include <sys/types.h>
32 #include "intervals.h"
38 #define min(a, b) ((a) < (b) ? (a) : (b))
39 #define max(a, b) ((a) > (b) ? (a) : (b))
41 extern void insert_from_buffer ();
42 static long difftm ();
44 /* Some static data, and a function to initialize it for each run */
46 Lisp_Object Vsystem_name
;
47 Lisp_Object Vuser_real_name
; /* login name of current user ID */
48 Lisp_Object Vuser_full_name
; /* full name of current user */
49 Lisp_Object Vuser_name
; /* user name from LOGNAME or USER */
55 register unsigned char *p
, *q
, *r
;
56 struct passwd
*pw
; /* password entry for the current user */
57 extern char *index ();
60 /* Set up system_name even when dumping. */
64 /* Don't bother with this on initial start when just dumping out */
67 #endif /* not CANNOT_DUMP */
69 pw
= (struct passwd
*) getpwuid (getuid ());
71 /* We let the real user name default to "root" because that's quite
72 accurate on MSDOG and because it lets Emacs find the init file.
73 (The DVX libraries override the Djgpp libraries here.) */
74 Vuser_real_name
= build_string (pw
? pw
->pw_name
: "root");
76 Vuser_real_name
= build_string (pw
? pw
->pw_name
: "unknown");
79 /* Get the effective user name, by consulting environment variables,
80 or the effective uid if those are unset. */
81 user_name
= (char *) getenv ("LOGNAME");
84 user_name
= (char *) getenv ("USERNAME"); /* it's USERNAME on NT */
86 user_name
= (char *) getenv ("USER");
87 #endif /* WINDOWSNT */
90 pw
= (struct passwd
*) getpwuid (geteuid ());
91 user_name
= (char *) (pw
? pw
->pw_name
: "unknown");
93 Vuser_name
= build_string (user_name
);
95 /* If the user name claimed in the environment vars differs from
96 the real uid, use the claimed name to find the full name. */
97 tem
= Fstring_equal (Vuser_name
, Vuser_real_name
);
99 pw
= (struct passwd
*) getpwnam (XSTRING (Vuser_name
)->data
);
101 p
= (unsigned char *) (pw
? USER_FULL_NAME
: "unknown");
102 q
= (unsigned char *) index (p
, ',');
103 Vuser_full_name
= make_string (p
, q
? q
- p
: strlen (p
));
105 #ifdef AMPERSAND_FULL_NAME
106 p
= XSTRING (Vuser_full_name
)->data
;
107 q
= (unsigned char *) index (p
, '&');
108 /* Substitute the login name for the &, upcasing the first character. */
111 r
= (unsigned char *) alloca (strlen (p
) + XSTRING (Vuser_name
)->size
+ 1);
114 strcat (r
, XSTRING (Vuser_name
)->data
);
115 r
[q
- p
] = UPCASE (r
[q
- p
]);
117 Vuser_full_name
= build_string (r
);
119 #endif /* AMPERSAND_FULL_NAME */
121 p
= (unsigned char *) getenv ("NAME");
123 Vuser_full_name
= build_string (p
);
126 DEFUN ("char-to-string", Fchar_to_string
, Schar_to_string
, 1, 1, 0,
127 "Convert arg CHAR to a one-character string containing that character.")
135 return make_string (&c
, 1);
138 DEFUN ("string-to-char", Fstring_to_char
, Sstring_to_char
, 1, 1, 0,
139 "Convert arg STRING to a character, the first character of that string.")
141 register Lisp_Object str
;
143 register Lisp_Object val
;
144 register struct Lisp_String
*p
;
145 CHECK_STRING (str
, 0);
149 XSETFASTINT (val
, ((unsigned char *) p
->data
)[0]);
151 XSETFASTINT (val
, 0);
159 register Lisp_Object mark
;
160 mark
= Fmake_marker ();
161 Fset_marker (mark
, make_number (val
), Qnil
);
165 DEFUN ("point", Fpoint
, Spoint
, 0, 0, 0,
166 "Return value of point, as an integer.\n\
167 Beginning of buffer is position (point-min)")
171 XSETFASTINT (temp
, point
);
175 DEFUN ("point-marker", Fpoint_marker
, Spoint_marker
, 0, 0, 0,
176 "Return value of point, as a marker object.")
179 return buildmark (point
);
183 clip_to_bounds (lower
, num
, upper
)
184 int lower
, num
, upper
;
188 else if (num
> upper
)
194 DEFUN ("goto-char", Fgoto_char
, Sgoto_char
, 1, 1, "NGoto char: ",
195 "Set point to POSITION, a number or marker.\n\
196 Beginning of buffer is position (point-min), end is (point-max).")
198 register Lisp_Object n
;
200 CHECK_NUMBER_COERCE_MARKER (n
, 0);
202 SET_PT (clip_to_bounds (BEGV
, XINT (n
), ZV
));
207 region_limit (beginningp
)
210 extern Lisp_Object Vmark_even_if_inactive
; /* Defined in callint.c. */
211 register Lisp_Object m
;
212 if (!NILP (Vtransient_mark_mode
) && NILP (Vmark_even_if_inactive
)
213 && NILP (current_buffer
->mark_active
))
214 Fsignal (Qmark_inactive
, Qnil
);
215 m
= Fmarker_position (current_buffer
->mark
);
216 if (NILP (m
)) error ("There is no region now");
217 if ((point
< XFASTINT (m
)) == beginningp
)
218 return (make_number (point
));
223 DEFUN ("region-beginning", Fregion_beginning
, Sregion_beginning
, 0, 0, 0,
224 "Return position of beginning of region, as an integer.")
227 return (region_limit (1));
230 DEFUN ("region-end", Fregion_end
, Sregion_end
, 0, 0, 0,
231 "Return position of end of region, as an integer.")
234 return (region_limit (0));
237 #if 0 /* now in lisp code */
238 DEFUN ("mark", Fmark
, Smark
, 0, 0, 0,
239 "Return this buffer's mark value as integer, or nil if no mark.\n\
240 If you are using this in an editing command, you are most likely making\n\
241 a mistake; see the documentation of `set-mark'.")
244 return Fmarker_position (current_buffer
->mark
);
246 #endif /* commented out code */
248 DEFUN ("mark-marker", Fmark_marker
, Smark_marker
, 0, 0, 0,
249 "Return this buffer's mark, as a marker object.\n\
250 Watch out! Moving this marker changes the mark position.\n\
251 If you set the marker not to point anywhere, the buffer will have no mark.")
254 return current_buffer
->mark
;
257 #if 0 /* this is now in lisp code */
258 DEFUN ("set-mark", Fset_mark
, Sset_mark
, 1, 1, 0,
259 "Set this buffer's mark to POS. Don't use this function!\n\
260 That is to say, don't use this function unless you want\n\
261 the user to see that the mark has moved, and you want the previous\n\
262 mark position to be lost.\n\
264 Normally, when a new mark is set, the old one should go on the stack.\n\
265 This is why most applications should use push-mark, not set-mark.\n\
267 Novice programmers often try to use the mark for the wrong purposes.\n\
268 The mark saves a location for the user's convenience.\n\
269 Most editing commands should not alter the mark.\n\
270 To remember a location for internal use in the Lisp program,\n\
271 store it in a Lisp variable. Example:\n\
273 (let ((beg (point))) (forward-line 1) (delete-region beg (point))).")
279 current_buffer
->mark
= Qnil
;
282 CHECK_NUMBER_COERCE_MARKER (pos
, 0);
284 if (NILP (current_buffer
->mark
))
285 current_buffer
->mark
= Fmake_marker ();
287 Fset_marker (current_buffer
->mark
, pos
, Qnil
);
290 #endif /* commented-out code */
293 save_excursion_save ()
295 register int visible
= (XBUFFER (XWINDOW (selected_window
)->buffer
)
298 return Fcons (Fpoint_marker (),
299 Fcons (Fcopy_marker (current_buffer
->mark
),
300 Fcons (visible
? Qt
: Qnil
,
301 current_buffer
->mark_active
)));
305 save_excursion_restore (info
)
306 register Lisp_Object info
;
308 register Lisp_Object tem
, tem1
, omark
, nmark
;
310 tem
= Fmarker_buffer (Fcar (info
));
311 /* If buffer being returned to is now deleted, avoid error */
312 /* Otherwise could get error here while unwinding to top level
314 /* In that case, Fmarker_buffer returns nil now. */
320 unchain_marker (tem
);
321 tem
= Fcar (Fcdr (info
));
322 omark
= Fmarker_position (current_buffer
->mark
);
323 Fset_marker (current_buffer
->mark
, tem
, Fcurrent_buffer ());
324 nmark
= Fmarker_position (tem
);
325 unchain_marker (tem
);
326 tem
= Fcdr (Fcdr (info
));
327 #if 0 /* We used to make the current buffer visible in the selected window
328 if that was true previously. That avoids some anomalies.
329 But it creates others, and it wasn't documented, and it is simpler
330 and cleaner never to alter the window/buffer connections. */
333 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
334 Fswitch_to_buffer (Fcurrent_buffer (), Qnil
);
337 tem1
= current_buffer
->mark_active
;
338 current_buffer
->mark_active
= Fcdr (tem
);
339 if (!NILP (Vrun_hooks
))
341 /* If mark is active now, and either was not active
342 or was at a different place, run the activate hook. */
343 if (! NILP (current_buffer
->mark_active
))
345 if (! EQ (omark
, nmark
))
346 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
348 /* If mark has ceased to be active, run deactivate hook. */
349 else if (! NILP (tem1
))
350 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
355 DEFUN ("save-excursion", Fsave_excursion
, Ssave_excursion
, 0, UNEVALLED
, 0,
356 "Save point, mark, and current buffer; execute BODY; restore those things.\n\
357 Executes BODY just like `progn'.\n\
358 The values of point, mark and the current buffer are restored\n\
359 even in case of abnormal exit (throw or error).\n\
360 The state of activation of the mark is also restored.")
364 register Lisp_Object val
;
365 int count
= specpdl_ptr
- specpdl
;
367 record_unwind_protect (save_excursion_restore
, save_excursion_save ());
370 return unbind_to (count
, val
);
373 DEFUN ("buffer-size", Fbufsize
, Sbufsize
, 0, 0, 0,
374 "Return the number of characters in the current buffer.")
378 XSETFASTINT (temp
, Z
- BEG
);
382 DEFUN ("point-min", Fpoint_min
, Spoint_min
, 0, 0, 0,
383 "Return the minimum permissible value of point in the current buffer.\n\
384 This is 1, unless narrowing (a buffer restriction) is in effect.")
388 XSETFASTINT (temp
, BEGV
);
392 DEFUN ("point-min-marker", Fpoint_min_marker
, Spoint_min_marker
, 0, 0, 0,
393 "Return a marker to the minimum permissible value of point in this buffer.\n\
394 This is the beginning, unless narrowing (a buffer restriction) is in effect.")
397 return buildmark (BEGV
);
400 DEFUN ("point-max", Fpoint_max
, Spoint_max
, 0, 0, 0,
401 "Return the maximum permissible value of point in the current buffer.\n\
402 This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\
403 is in effect, in which case it is less.")
407 XSETFASTINT (temp
, ZV
);
411 DEFUN ("point-max-marker", Fpoint_max_marker
, Spoint_max_marker
, 0, 0, 0,
412 "Return a marker to the maximum permissible value of point in this buffer.\n\
413 This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\
414 is in effect, in which case it is less.")
417 return buildmark (ZV
);
420 DEFUN ("following-char", Ffollowing_char
, Sfollowing_char
, 0, 0, 0,
421 "Return the character following point, as a number.\n\
422 At the end of the buffer or accessible region, return 0.")
427 XSETFASTINT (temp
, 0);
429 XSETFASTINT (temp
, FETCH_CHAR (point
));
433 DEFUN ("preceding-char", Fprevious_char
, Sprevious_char
, 0, 0, 0,
434 "Return the character preceding point, as a number.\n\
435 At the beginning of the buffer or accessible region, return 0.")
440 XSETFASTINT (temp
, 0);
442 XSETFASTINT (temp
, FETCH_CHAR (point
- 1));
446 DEFUN ("bobp", Fbobp
, Sbobp
, 0, 0, 0,
447 "Return T if point is at the beginning of the buffer.\n\
448 If the buffer is narrowed, this means the beginning of the narrowed part.")
456 DEFUN ("eobp", Feobp
, Seobp
, 0, 0, 0,
457 "Return T if point is at the end of the buffer.\n\
458 If the buffer is narrowed, this means the end of the narrowed part.")
466 DEFUN ("bolp", Fbolp
, Sbolp
, 0, 0, 0,
467 "Return T if point is at the beginning of a line.")
470 if (point
== BEGV
|| FETCH_CHAR (point
- 1) == '\n')
475 DEFUN ("eolp", Feolp
, Seolp
, 0, 0, 0,
476 "Return T if point is at the end of a line.\n\
477 `End of a line' includes point being at the end of the buffer.")
480 if (point
== ZV
|| FETCH_CHAR (point
) == '\n')
485 DEFUN ("char-after", Fchar_after
, Schar_after
, 1, 1, 0,
486 "Return character in current buffer at position POS.\n\
487 POS is an integer or a buffer pointer.\n\
488 If POS is out of range, the value is nil.")
492 register Lisp_Object val
;
495 CHECK_NUMBER_COERCE_MARKER (pos
, 0);
498 if (n
< BEGV
|| n
>= ZV
) return Qnil
;
500 XSETFASTINT (val
, FETCH_CHAR (n
));
504 DEFUN ("user-login-name", Fuser_login_name
, Suser_login_name
, 0, 1, 0,
505 "Return the name under which the user logged in, as a string.\n\
506 This is based on the effective uid, not the real uid.\n\
507 Also, if the environment variable LOGNAME or USER is set,\n\
508 that determines the value of this function.\n\n\
509 If optional argument UID is an integer, return the login name of the user\n\
510 with that uid, or nil if there is no such user.")
516 /* Set up the user name info if we didn't do it before.
517 (That can happen if Emacs is dumpable
518 but you decide to run `temacs -l loadup' and not dump. */
519 if (INTEGERP (Vuser_name
))
525 CHECK_NUMBER (uid
, 0);
526 pw
= (struct passwd
*) getpwuid (XINT (uid
));
527 return (pw
? build_string (pw
->pw_name
) : Qnil
);
530 DEFUN ("user-real-login-name", Fuser_real_login_name
, Suser_real_login_name
,
532 "Return the name of the user's real uid, as a string.\n\
533 This ignores the environment variables LOGNAME and USER, so it differs from\n\
534 `user-login-name' when running under `su'.")
537 /* Set up the user name info if we didn't do it before.
538 (That can happen if Emacs is dumpable
539 but you decide to run `temacs -l loadup' and not dump. */
540 if (INTEGERP (Vuser_name
))
542 return Vuser_real_name
;
545 DEFUN ("user-uid", Fuser_uid
, Suser_uid
, 0, 0, 0,
546 "Return the effective uid of Emacs, as an integer.")
549 return make_number (geteuid ());
552 DEFUN ("user-real-uid", Fuser_real_uid
, Suser_real_uid
, 0, 0, 0,
553 "Return the real uid of Emacs, as an integer.")
556 return make_number (getuid ());
559 DEFUN ("user-full-name", Fuser_full_name
, Suser_full_name
, 0, 0, 0,
560 "Return the full name of the user logged in, as a string.")
563 return Vuser_full_name
;
566 DEFUN ("system-name", Fsystem_name
, Ssystem_name
, 0, 0, 0,
567 "Return the name of the machine you are running on, as a string.")
573 /* For the benefit of callers who don't want to include lisp.h */
577 return (char *) XSTRING (Vsystem_name
)->data
;
580 DEFUN ("emacs-pid", Femacs_pid
, Semacs_pid
, 0, 0, 0,
581 "Return the process ID of Emacs, as an integer.")
584 return make_number (getpid ());
587 DEFUN ("current-time", Fcurrent_time
, Scurrent_time
, 0, 0, 0,
588 "Return the current time, as the number of seconds since 12:00 AM January 1970.\n\
589 The time is returned as a list of three integers. The first has the\n\
590 most significant 16 bits of the seconds, while the second has the\n\
591 least significant 16 bits. The third integer gives the microsecond\n\
594 The microsecond count is zero on systems that do not provide\n\
595 resolution finer than a second.")
599 Lisp_Object result
[3];
602 XSETINT (result
[0], (EMACS_SECS (t
) >> 16) & 0xffff);
603 XSETINT (result
[1], (EMACS_SECS (t
) >> 0) & 0xffff);
604 XSETINT (result
[2], EMACS_USECS (t
));
606 return Flist (3, result
);
611 lisp_time_argument (specified_time
, result
)
612 Lisp_Object specified_time
;
615 if (NILP (specified_time
))
616 return time (result
) != -1;
619 Lisp_Object high
, low
;
620 high
= Fcar (specified_time
);
621 CHECK_NUMBER (high
, 0);
622 low
= Fcdr (specified_time
);
625 CHECK_NUMBER (low
, 0);
626 *result
= (XINT (high
) << 16) + (XINT (low
) & 0xffff);
627 return *result
>> 16 == XINT (high
);
631 DEFUN ("format-time-string", Fformat_time_string
, Sformat_time_string
, 2, 2, 0,
632 "Use FORMAT-STRING to format the time TIME.\n\
633 TIME is specified as (HIGH LOW . IGNORED) or (HIGH . LOW), as from\n\
634 `current-time' and `file-attributes'.\n\
635 FORMAT-STRING may contain %-sequences to substitute parts of the time.\n\
636 %a is replaced by the abbreviated name of the day of week.\n\
637 %A is replaced by the full name of the day of week.\n\
638 %b is replaced by the abbreviated name of the month.\n\
639 %B is replaced by the full name of the month.\n\
640 %c is a synonym for \"%x %X\".\n\
641 %C is a locale-specific synonym, which defaults to \"%A, %B %e, %Y\" in the C locale.\n\
642 %d is replaced by the day of month, zero-padded.\n\
643 %D is a synonym for \"%m/%d/%y\".\n\
644 %e is replaced by the day of month, blank-padded.\n\
645 %h is a synonym for \"%b\".\n\
646 %H is replaced by the hour (00-23).\n\
647 %I is replaced by the hour (00-12).\n\
648 %j is replaced by the day of the year (001-366).\n\
649 %k is replaced by the hour (0-23), blank padded.\n\
650 %l is replaced by the hour (1-12), blank padded.\n\
651 %m is replaced by the month (01-12).\n\
652 %M is replaced by the minut (00-59).\n\
653 %n is a synonym for \"\\n\".\n\
654 %p is replaced by AM or PM, as appropriate.\n\
655 %r is a synonym for \"%I:%M:%S %p\".\n\
656 %R is a synonym for \"%H:%M\".\n\
657 %S is replaced by the seconds (00-60).\n\
658 %t is a synonym for \"\\t\".\n\
659 %T is a synonym for \"%H:%M:%S\".\n\
660 %U is replaced by the week of the year (01-52), first day of week is Sunday.\n\
661 %w is replaced by the day of week (0-6), Sunday is day 0.\n\
662 %W is replaced by the week of the year (01-52), first day of week is Monday.\n\
663 %x is a locale-specific synonym, which defaults to \"%D\" in the C locale.\n\
664 %X is a locale-specific synonym, which defaults to \"%T\" in the C locale.\n\
665 %y is replaced by the year without century (00-99).\n\
666 %Y is replaced by the year with century.\n\
667 %Z is replaced by the time zone abbreviation.\n\
669 The number of options reflects the `strftime' function.")
670 (format_string
, time
)
671 Lisp_Object format_string
, time
;
676 CHECK_STRING (format_string
, 1);
678 if (! lisp_time_argument (time
, &value
))
679 error ("Invalid time specification");
681 /* This is probably enough. */
682 size
= XSTRING (format_string
)->size
* 6 + 50;
686 char *buf
= (char *) alloca (size
);
687 if (emacs_strftime (buf
, size
, XSTRING (format_string
)->data
,
689 return build_string (buf
);
690 /* If buffer was too small, make it bigger. */
695 DEFUN ("decode-time", Fdecode_time
, Sdecode_time
, 0, 1, 0,
696 "Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE).\n\
697 The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED)\n\
698 or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil'\n\
699 to use the current time. The list has the following nine members:\n\
700 SEC is an integer between 0 and 59. MINUTE is an integer between 0 and 59.\n\
701 HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31.\n\
702 MONTH is an integer between 1 and 12. YEAR is an integer indicating the\n\
703 four-digit year. DOW is the day of week, an integer between 0 and 6, where\n\
704 0 is Sunday. DST is t if daylight savings time is effect, otherwise nil.\n\
705 ZONE is an integer indicating the number of seconds east of Greenwich.\n\
706 (Note that Common Lisp has different meanings for DOW and ZONE.)")
708 Lisp_Object specified_time
;
712 struct tm
*decoded_time
;
713 Lisp_Object list_args
[9];
715 if (! lisp_time_argument (specified_time
, &time_spec
))
716 error ("Invalid time specification");
718 decoded_time
= localtime (&time_spec
);
719 XSETFASTINT (list_args
[0], decoded_time
->tm_sec
);
720 XSETFASTINT (list_args
[1], decoded_time
->tm_min
);
721 XSETFASTINT (list_args
[2], decoded_time
->tm_hour
);
722 XSETFASTINT (list_args
[3], decoded_time
->tm_mday
);
723 XSETFASTINT (list_args
[4], decoded_time
->tm_mon
+ 1);
724 XSETFASTINT (list_args
[5], decoded_time
->tm_year
+ 1900);
725 XSETFASTINT (list_args
[6], decoded_time
->tm_wday
);
726 list_args
[7] = (decoded_time
->tm_isdst
)? Qt
: Qnil
;
728 /* Make a copy, in case gmtime modifies the struct. */
729 save_tm
= *decoded_time
;
730 decoded_time
= gmtime (&time_spec
);
731 if (decoded_time
== 0)
734 XSETINT (list_args
[8], difftm (&save_tm
, decoded_time
));
735 return Flist (9, list_args
);
738 static char days_per_month
[11]
739 = { 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31 };
741 DEFUN ("encode-time", Fencode_time
, Sencode_time
, 6, 7, 0,
742 "Convert SEC, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time.\n\
743 This is the reverse operation of `decode-time', which see. ZONE defaults\n\
744 to the current time zone and daylight savings time if not specified; if\n\
745 specified, it can be either a list (as from `current-time-zone') or an\n\
746 integer (as from `decode-time'), and is applied without consideration for\n\
747 daylight savings time.\n\
748 Year numbers less than 100 are treated just like other year numbers.\n\
749 If you them to stand for years above 1900, you must do that yourself.")
750 (sec
, minute
, hour
, day
, month
, year
, zone
)
751 Lisp_Object sec
, minute
, hour
, day
, month
, year
, zone
;
754 int fullyear
, mon
, days
, seconds
, tz
= 0;
756 CHECK_NATNUM (sec
, 0);
757 CHECK_NATNUM (minute
, 1);
758 CHECK_NATNUM (hour
, 2);
759 CHECK_NATNUM (day
, 3);
760 CHECK_NATNUM (month
, 4);
761 CHECK_NATNUM (year
, 5);
763 fullyear
= XINT (year
);
765 /* Adjust incoming datespec to epoch = March 1, year 0.
766 The "date" March 1, year 0, is an abstraction used purely for its
767 computational convenience; year 0 never existed. */
768 mon
= XINT (month
) - 1 + 10;
769 fullyear
+= mon
/12 - 1;
772 days
= XINT (day
) - 1; /* day of month */
773 while (mon
-- > 0) /* day of year */
774 days
+= days_per_month
[mon
];
775 days
+= 146097 * (fullyear
/400); /* 400 years = 146097 days */
777 days
+= 36524 * (fullyear
/100); /* 100 years = 36524 days */
779 days
+= 1461 * (fullyear
/4); /* 4 years = 1461 days */
781 days
+= 365 * fullyear
; /* 1 year = 365 days */
783 /* Adjust computed datespec to epoch = January 1, 1970. */
784 days
+= 59; /* March 1 is 59th day. */
785 days
-= 719527; /* 1970 years = 719527 days */
787 seconds
= XINT (sec
) + 60 * XINT (minute
) + 3600 * XINT (hour
);
789 if (sizeof (time_t) == 4
790 && ((days
+(seconds
/86400) > 24854) || (days
+(seconds
/86400) < -24854)))
791 error ("the specified time is outside the representable range");
793 time
= days
* 86400 + seconds
;
795 /* We have the correct value for UTC. Adjust for timezones. */
799 time_t adjusted_time
;
801 /* If the system does not use timezones, gmtime returns 0, and we
802 already have the correct value, by definition. */
803 if ((t
= gmtime (&time
)) != 0)
806 t
= localtime (&time
);
807 tz
= difftm (t
, &gmt
);
808 /* The timezone returned is that at the specified Universal Time,
809 not the local time, which is what we want. Adjust, repeat. */
810 adjusted_time
= time
- tz
;
811 gmt
= *gmtime (&adjusted_time
); /* this is safe now */
812 t
= localtime (&adjusted_time
);
813 adjusted_tz
= difftm (t
, &gmt
);
814 /* In case of discrepancy, adjust again for extra accuracy. */
815 if (adjusted_tz
!= tz
)
817 adjusted_time
= time
- adjusted_tz
;
818 gmt
= *gmtime (&adjusted_time
);
819 t
= localtime (&adjusted_time
);
820 adjusted_tz
= difftm (t
, &gmt
);
829 CHECK_NUMBER (zone
, 6);
833 return make_time (time
- tz
);
836 DEFUN ("current-time-string", Fcurrent_time_string
, Scurrent_time_string
, 0, 1, 0,
837 "Return the current time, as a human-readable string.\n\
838 Programs can use this function to decode a time,\n\
839 since the number of columns in each field is fixed.\n\
840 The format is `Sun Sep 16 01:03:52 1973'.\n\
841 If an argument is given, it specifies a time to format\n\
842 instead of the current time. The argument should have the form:\n\
845 (HIGH LOW . IGNORED).\n\
846 Thus, you can use times obtained from `current-time'\n\
847 and from `file-attributes'.")
849 Lisp_Object specified_time
;
855 if (! lisp_time_argument (specified_time
, &value
))
857 tem
= (char *) ctime (&value
);
859 strncpy (buf
, tem
, 24);
862 return build_string (buf
);
865 #define TM_YEAR_ORIGIN 1900
867 /* Yield A - B, measured in seconds. */
872 int ay
= a
->tm_year
+ (TM_YEAR_ORIGIN
- 1);
873 int by
= b
->tm_year
+ (TM_YEAR_ORIGIN
- 1);
874 /* Some compilers can't handle this as a single return statement. */
876 /* difference in day of year */
877 a
->tm_yday
- b
->tm_yday
878 /* + intervening leap days */
879 + ((ay
>> 2) - (by
>> 2))
881 + ((ay
/100 >> 2) - (by
/100 >> 2))
882 /* + difference in years * 365 */
883 + (long)(ay
-by
) * 365
885 return (60*(60*(24*days
+ (a
->tm_hour
- b
->tm_hour
))
886 + (a
->tm_min
- b
->tm_min
))
887 + (a
->tm_sec
- b
->tm_sec
));
890 DEFUN ("current-time-zone", Fcurrent_time_zone
, Scurrent_time_zone
, 0, 1, 0,
891 "Return the offset and name for the local time zone.\n\
892 This returns a list of the form (OFFSET NAME).\n\
893 OFFSET is an integer number of seconds ahead of UTC (east of Greenwich).\n\
894 A negative value means west of Greenwich.\n\
895 NAME is a string giving the name of the time zone.\n\
896 If an argument is given, it specifies when the time zone offset is determined\n\
897 instead of using the current time. The argument should have the form:\n\
900 (HIGH LOW . IGNORED).\n\
901 Thus, you can use times obtained from `current-time'\n\
902 and from `file-attributes'.\n\
904 Some operating systems cannot provide all this information to Emacs;\n\
905 in this case, `current-time-zone' returns a list containing nil for\n\
906 the data it can't find.")
908 Lisp_Object specified_time
;
913 if (lisp_time_argument (specified_time
, &value
)
914 && (t
= gmtime (&value
)) != 0)
920 gmt
= *t
; /* Make a copy, in case localtime modifies *t. */
921 t
= localtime (&value
);
922 offset
= difftm (t
, &gmt
);
926 s
= (char *)t
->tm_zone
;
927 #else /* not HAVE_TM_ZONE */
929 if (t
->tm_isdst
== 0 || t
->tm_isdst
== 1)
930 s
= tzname
[t
->tm_isdst
];
932 #endif /* not HAVE_TM_ZONE */
935 /* No local time zone name is available; use "+-NNNN" instead. */
936 int am
= (offset
< 0 ? -offset
: offset
) / 60;
937 sprintf (buf
, "%c%02d%02d", (offset
< 0 ? '-' : '+'), am
/60, am
%60);
940 return Fcons (make_number (offset
), Fcons (build_string (s
), Qnil
));
943 return Fmake_list (2, Qnil
);
955 /* Callers passing one argument to Finsert need not gcpro the
956 argument "array", since the only element of the array will
957 not be used after calling insert or insert_from_string, so
958 we don't care if it gets trashed. */
960 DEFUN ("insert", Finsert
, Sinsert
, 0, MANY
, 0,
961 "Insert the arguments, either strings or characters, at point.\n\
962 Point moves forward so that it ends up after the inserted text.\n\
963 Any other markers at the point of insertion remain before the text.")
966 register Lisp_Object
*args
;
969 register Lisp_Object tem
;
972 for (argnum
= 0; argnum
< nargs
; argnum
++)
981 else if (STRINGP (tem
))
983 insert_from_string (tem
, 0, XSTRING (tem
)->size
, 0);
987 tem
= wrong_type_argument (Qchar_or_string_p
, tem
);
995 DEFUN ("insert-and-inherit", Finsert_and_inherit
, Sinsert_and_inherit
,
997 "Insert the arguments at point, inheriting properties from adjoining text.\n\
998 Point moves forward so that it ends up after the inserted text.\n\
999 Any other markers at the point of insertion remain before the text.")
1002 register Lisp_Object
*args
;
1004 register int argnum
;
1005 register Lisp_Object tem
;
1008 for (argnum
= 0; argnum
< nargs
; argnum
++)
1014 str
[0] = XINT (tem
);
1015 insert_and_inherit (str
, 1);
1017 else if (STRINGP (tem
))
1019 insert_from_string (tem
, 0, XSTRING (tem
)->size
, 1);
1023 tem
= wrong_type_argument (Qchar_or_string_p
, tem
);
1031 DEFUN ("insert-before-markers", Finsert_before_markers
, Sinsert_before_markers
, 0, MANY
, 0,
1032 "Insert strings or characters at point, relocating markers after the text.\n\
1033 Point moves forward so that it ends up after the inserted text.\n\
1034 Any other markers at the point of insertion also end up after the text.")
1037 register Lisp_Object
*args
;
1039 register int argnum
;
1040 register Lisp_Object tem
;
1043 for (argnum
= 0; argnum
< nargs
; argnum
++)
1049 str
[0] = XINT (tem
);
1050 insert_before_markers (str
, 1);
1052 else if (STRINGP (tem
))
1054 insert_from_string_before_markers (tem
, 0, XSTRING (tem
)->size
, 0);
1058 tem
= wrong_type_argument (Qchar_or_string_p
, tem
);
1066 DEFUN ("insert-before-markers-and-inherit",
1067 Finsert_and_inherit_before_markers
, Sinsert_and_inherit_before_markers
,
1069 "Insert text at point, relocating markers and inheriting properties.\n\
1070 Point moves forward so that it ends up after the inserted text.\n\
1071 Any other markers at the point of insertion also end up after the text.")
1074 register Lisp_Object
*args
;
1076 register int argnum
;
1077 register Lisp_Object tem
;
1080 for (argnum
= 0; argnum
< nargs
; argnum
++)
1086 str
[0] = XINT (tem
);
1087 insert_before_markers_and_inherit (str
, 1);
1089 else if (STRINGP (tem
))
1091 insert_from_string_before_markers (tem
, 0, XSTRING (tem
)->size
, 1);
1095 tem
= wrong_type_argument (Qchar_or_string_p
, tem
);
1103 DEFUN ("insert-char", Finsert_char
, Sinsert_char
, 2, 3, 0,
1104 "Insert COUNT (second arg) copies of CHAR (first arg).\n\
1105 Point and all markers are affected as in the function `insert'.\n\
1106 Both arguments are required.\n\
1107 The optional third arg INHERIT, if non-nil, says to inherit text properties\n\
1108 from adjoining text, if those properties are sticky.")
1109 (chr
, count
, inherit
)
1110 Lisp_Object chr
, count
, inherit
;
1112 register unsigned char *string
;
1113 register int strlen
;
1116 CHECK_NUMBER (chr
, 0);
1117 CHECK_NUMBER (count
, 1);
1122 strlen
= min (n
, 256);
1123 string
= (unsigned char *) alloca (strlen
);
1124 for (i
= 0; i
< strlen
; i
++)
1125 string
[i
] = XFASTINT (chr
);
1128 if (!NILP (inherit
))
1129 insert_and_inherit (string
, strlen
);
1131 insert (string
, strlen
);
1136 if (!NILP (inherit
))
1137 insert_and_inherit (string
, n
);
1145 /* Making strings from buffer contents. */
1147 /* Return a Lisp_String containing the text of the current buffer from
1148 START to END. If text properties are in use and the current buffer
1149 has properties in the range specified, the resulting string will also
1152 We don't want to use plain old make_string here, because it calls
1153 make_uninit_string, which can cause the buffer arena to be
1154 compacted. make_string has no way of knowing that the data has
1155 been moved, and thus copies the wrong data into the string. This
1156 doesn't effect most of the other users of make_string, so it should
1157 be left as is. But we should use this function when conjuring
1158 buffer substrings. */
1161 make_buffer_string (start
, end
)
1164 Lisp_Object result
, tem
, tem1
;
1166 if (start
< GPT
&& GPT
< end
)
1169 result
= make_uninit_string (end
- start
);
1170 bcopy (&FETCH_CHAR (start
), XSTRING (result
)->data
, end
- start
);
1172 tem
= Fnext_property_change (make_number (start
), Qnil
, make_number (end
));
1173 tem1
= Ftext_properties_at (make_number (start
), Qnil
);
1175 #ifdef USE_TEXT_PROPERTIES
1176 if (XINT (tem
) != end
|| !NILP (tem1
))
1177 copy_intervals_to_string (result
, current_buffer
, start
, end
- start
);
1183 DEFUN ("buffer-substring", Fbuffer_substring
, Sbuffer_substring
, 2, 2, 0,
1184 "Return the contents of part of the current buffer as a string.\n\
1185 The two arguments START and END are character positions;\n\
1186 they can be in either order.")
1190 register int beg
, end
;
1192 validate_region (&b
, &e
);
1196 return make_buffer_string (beg
, end
);
1199 DEFUN ("buffer-string", Fbuffer_string
, Sbuffer_string
, 0, 0, 0,
1200 "Return the contents of the current buffer as a string.\n\
1201 If narrowing is in effect, this function returns only the visible part\n\
1205 return make_buffer_string (BEGV
, ZV
);
1208 DEFUN ("insert-buffer-substring", Finsert_buffer_substring
, Sinsert_buffer_substring
,
1210 "Insert before point a substring of the contents of buffer BUFFER.\n\
1211 BUFFER may be a buffer or a buffer name.\n\
1212 Arguments START and END are character numbers specifying the substring.\n\
1213 They default to the beginning and the end of BUFFER.")
1215 Lisp_Object buf
, b
, e
;
1217 register int beg
, end
, temp
;
1218 register struct buffer
*bp
;
1221 buffer
= Fget_buffer (buf
);
1224 bp
= XBUFFER (buffer
);
1227 beg
= BUF_BEGV (bp
);
1230 CHECK_NUMBER_COERCE_MARKER (b
, 0);
1237 CHECK_NUMBER_COERCE_MARKER (e
, 1);
1242 temp
= beg
, beg
= end
, end
= temp
;
1244 if (!(BUF_BEGV (bp
) <= beg
&& end
<= BUF_ZV (bp
)))
1245 args_out_of_range (b
, e
);
1247 insert_from_buffer (bp
, beg
, end
- beg
, 0);
1251 DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings
, Scompare_buffer_substrings
,
1253 "Compare two substrings of two buffers; return result as number.\n\
1254 the value is -N if first string is less after N-1 chars,\n\
1255 +N if first string is greater after N-1 chars, or 0 if strings match.\n\
1256 Each substring is represented as three arguments: BUFFER, START and END.\n\
1257 That makes six args in all, three for each substring.\n\n\
1258 The value of `case-fold-search' in the current buffer\n\
1259 determines whether case is significant or ignored.")
1260 (buffer1
, start1
, end1
, buffer2
, start2
, end2
)
1261 Lisp_Object buffer1
, start1
, end1
, buffer2
, start2
, end2
;
1263 register int begp1
, endp1
, begp2
, endp2
, temp
, len1
, len2
, length
, i
;
1264 register struct buffer
*bp1
, *bp2
;
1265 register unsigned char *trt
1266 = (!NILP (current_buffer
->case_fold_search
)
1267 ? XSTRING (current_buffer
->case_canon_table
)->data
: 0);
1269 /* Find the first buffer and its substring. */
1272 bp1
= current_buffer
;
1276 buf1
= Fget_buffer (buffer1
);
1279 bp1
= XBUFFER (buf1
);
1283 begp1
= BUF_BEGV (bp1
);
1286 CHECK_NUMBER_COERCE_MARKER (start1
, 1);
1287 begp1
= XINT (start1
);
1290 endp1
= BUF_ZV (bp1
);
1293 CHECK_NUMBER_COERCE_MARKER (end1
, 2);
1294 endp1
= XINT (end1
);
1298 temp
= begp1
, begp1
= endp1
, endp1
= temp
;
1300 if (!(BUF_BEGV (bp1
) <= begp1
1302 && endp1
<= BUF_ZV (bp1
)))
1303 args_out_of_range (start1
, end1
);
1305 /* Likewise for second substring. */
1308 bp2
= current_buffer
;
1312 buf2
= Fget_buffer (buffer2
);
1315 bp2
= XBUFFER (buffer2
);
1319 begp2
= BUF_BEGV (bp2
);
1322 CHECK_NUMBER_COERCE_MARKER (start2
, 4);
1323 begp2
= XINT (start2
);
1326 endp2
= BUF_ZV (bp2
);
1329 CHECK_NUMBER_COERCE_MARKER (end2
, 5);
1330 endp2
= XINT (end2
);
1334 temp
= begp2
, begp2
= endp2
, endp2
= temp
;
1336 if (!(BUF_BEGV (bp2
) <= begp2
1338 && endp2
<= BUF_ZV (bp2
)))
1339 args_out_of_range (start2
, end2
);
1341 len1
= endp1
- begp1
;
1342 len2
= endp2
- begp2
;
1347 for (i
= 0; i
< length
; i
++)
1349 int c1
= *BUF_CHAR_ADDRESS (bp1
, begp1
+ i
);
1350 int c2
= *BUF_CHAR_ADDRESS (bp2
, begp2
+ i
);
1357 return make_number (- 1 - i
);
1359 return make_number (i
+ 1);
1362 /* The strings match as far as they go.
1363 If one is shorter, that one is less. */
1365 return make_number (length
+ 1);
1366 else if (length
< len2
)
1367 return make_number (- length
- 1);
1369 /* Same length too => they are equal. */
1370 return make_number (0);
1374 subst_char_in_region_unwind (arg
)
1377 return current_buffer
->undo_list
= arg
;
1380 DEFUN ("subst-char-in-region", Fsubst_char_in_region
,
1381 Ssubst_char_in_region
, 4, 5, 0,
1382 "From START to END, replace FROMCHAR with TOCHAR each time it occurs.\n\
1383 If optional arg NOUNDO is non-nil, don't record this change for undo\n\
1384 and don't mark the buffer as really changed.")
1385 (start
, end
, fromchar
, tochar
, noundo
)
1386 Lisp_Object start
, end
, fromchar
, tochar
, noundo
;
1388 register int pos
, stop
, look
;
1390 int count
= specpdl_ptr
- specpdl
;
1392 validate_region (&start
, &end
);
1393 CHECK_NUMBER (fromchar
, 2);
1394 CHECK_NUMBER (tochar
, 3);
1398 look
= XINT (fromchar
);
1400 /* If we don't want undo, turn off putting stuff on the list.
1401 That's faster than getting rid of things,
1402 and it prevents even the entry for a first change. */
1405 record_unwind_protect (subst_char_in_region_unwind
,
1406 current_buffer
->undo_list
);
1407 current_buffer
->undo_list
= Qt
;
1412 if (FETCH_CHAR (pos
) == look
)
1416 modify_region (current_buffer
, XINT (start
), stop
);
1418 if (! NILP (noundo
))
1420 if (MODIFF
- 1 == SAVE_MODIFF
)
1422 if (MODIFF
- 1 == current_buffer
->auto_save_modified
)
1423 current_buffer
->auto_save_modified
++;
1430 record_change (pos
, 1);
1431 FETCH_CHAR (pos
) = XINT (tochar
);
1437 signal_after_change (XINT (start
),
1438 stop
- XINT (start
), stop
- XINT (start
));
1440 unbind_to (count
, Qnil
);
1444 DEFUN ("translate-region", Ftranslate_region
, Stranslate_region
, 3, 3, 0,
1445 "From START to END, translate characters according to TABLE.\n\
1446 TABLE is a string; the Nth character in it is the mapping\n\
1447 for the character with code N. Returns the number of characters changed.")
1451 register Lisp_Object table
;
1453 register int pos
, stop
; /* Limits of the region. */
1454 register unsigned char *tt
; /* Trans table. */
1455 register int oc
; /* Old character. */
1456 register int nc
; /* New character. */
1457 int cnt
; /* Number of changes made. */
1458 Lisp_Object z
; /* Return. */
1459 int size
; /* Size of translate table. */
1461 validate_region (&start
, &end
);
1462 CHECK_STRING (table
, 2);
1464 size
= XSTRING (table
)->size
;
1465 tt
= XSTRING (table
)->data
;
1469 modify_region (current_buffer
, pos
, stop
);
1472 for (; pos
< stop
; ++pos
)
1474 oc
= FETCH_CHAR (pos
);
1480 record_change (pos
, 1);
1481 FETCH_CHAR (pos
) = nc
;
1482 signal_after_change (pos
, 1, 1);
1488 XSETFASTINT (z
, cnt
);
1492 DEFUN ("delete-region", Fdelete_region
, Sdelete_region
, 2, 2, "r",
1493 "Delete the text between point and mark.\n\
1494 When called from a program, expects two arguments,\n\
1495 positions (integers or markers) specifying the stretch to be deleted.")
1499 validate_region (&b
, &e
);
1500 del_range (XINT (b
), XINT (e
));
1504 DEFUN ("widen", Fwiden
, Swiden
, 0, 0, "",
1505 "Remove restrictions (narrowing) from current buffer.\n\
1506 This allows the buffer's full text to be seen and edited.")
1510 SET_BUF_ZV (current_buffer
, Z
);
1512 /* Changing the buffer bounds invalidates any recorded current column. */
1513 invalidate_current_column ();
1517 DEFUN ("narrow-to-region", Fnarrow_to_region
, Snarrow_to_region
, 2, 2, "r",
1518 "Restrict editing in this buffer to the current region.\n\
1519 The rest of the text becomes temporarily invisible and untouchable\n\
1520 but is not deleted; if you save the buffer in a file, the invisible\n\
1521 text is included in the file. \\[widen] makes all visible again.\n\
1522 See also `save-restriction'.\n\
1524 When calling from a program, pass two arguments; positions (integers\n\
1525 or markers) bounding the text that should remain visible.")
1527 register Lisp_Object b
, e
;
1529 CHECK_NUMBER_COERCE_MARKER (b
, 0);
1530 CHECK_NUMBER_COERCE_MARKER (e
, 1);
1532 if (XINT (b
) > XINT (e
))
1535 tem
= b
; b
= e
; e
= tem
;
1538 if (!(BEG
<= XINT (b
) && XINT (b
) <= XINT (e
) && XINT (e
) <= Z
))
1539 args_out_of_range (b
, e
);
1541 BEGV
= XFASTINT (b
);
1542 SET_BUF_ZV (current_buffer
, XFASTINT (e
));
1543 if (point
< XFASTINT (b
))
1544 SET_PT (XFASTINT (b
));
1545 if (point
> XFASTINT (e
))
1546 SET_PT (XFASTINT (e
));
1548 /* Changing the buffer bounds invalidates any recorded current column. */
1549 invalidate_current_column ();
1554 save_restriction_save ()
1556 register Lisp_Object bottom
, top
;
1557 /* Note: I tried using markers here, but it does not win
1558 because insertion at the end of the saved region
1559 does not advance mh and is considered "outside" the saved region. */
1560 XSETFASTINT (bottom
, BEGV
- BEG
);
1561 XSETFASTINT (top
, Z
- ZV
);
1563 return Fcons (Fcurrent_buffer (), Fcons (bottom
, top
));
1567 save_restriction_restore (data
)
1570 register struct buffer
*buf
;
1571 register int newhead
, newtail
;
1572 register Lisp_Object tem
;
1574 buf
= XBUFFER (XCONS (data
)->car
);
1576 data
= XCONS (data
)->cdr
;
1578 tem
= XCONS (data
)->car
;
1579 newhead
= XINT (tem
);
1580 tem
= XCONS (data
)->cdr
;
1581 newtail
= XINT (tem
);
1582 if (newhead
+ newtail
> BUF_Z (buf
) - BUF_BEG (buf
))
1587 BUF_BEGV (buf
) = BUF_BEG (buf
) + newhead
;
1588 SET_BUF_ZV (buf
, BUF_Z (buf
) - newtail
);
1591 /* If point is outside the new visible range, move it inside. */
1593 clip_to_bounds (BUF_BEGV (buf
), BUF_PT (buf
), BUF_ZV (buf
)));
1598 DEFUN ("save-restriction", Fsave_restriction
, Ssave_restriction
, 0, UNEVALLED
, 0,
1599 "Execute BODY, saving and restoring current buffer's restrictions.\n\
1600 The buffer's restrictions make parts of the beginning and end invisible.\n\
1601 \(They are set up with `narrow-to-region' and eliminated with `widen'.)\n\
1602 This special form, `save-restriction', saves the current buffer's restrictions\n\
1603 when it is entered, and restores them when it is exited.\n\
1604 So any `narrow-to-region' within BODY lasts only until the end of the form.\n\
1605 The old restrictions settings are restored\n\
1606 even in case of abnormal exit (throw or error).\n\
1608 The value returned is the value of the last form in BODY.\n\
1610 `save-restriction' can get confused if, within the BODY, you widen\n\
1611 and then make changes outside the area within the saved restrictions.\n\
1613 Note: if you are using both `save-excursion' and `save-restriction',\n\
1614 use `save-excursion' outermost:\n\
1615 (save-excursion (save-restriction ...))")
1619 register Lisp_Object val
;
1620 int count
= specpdl_ptr
- specpdl
;
1622 record_unwind_protect (save_restriction_restore
, save_restriction_save ());
1623 val
= Fprogn (body
);
1624 return unbind_to (count
, val
);
1627 /* Buffer for the most recent text displayed by Fmessage. */
1628 static char *message_text
;
1630 /* Allocated length of that buffer. */
1631 static int message_length
;
1633 DEFUN ("message", Fmessage
, Smessage
, 1, MANY
, 0,
1634 "Print a one-line message at the bottom of the screen.\n\
1635 The first argument is a control string.\n\
1636 It may contain %s or %d or %c to print successive following arguments.\n\
1637 %s means print an argument as a string, %d means print as number in decimal,\n\
1638 %c means print a number as a single character.\n\
1639 The argument used by %s must be a string or a symbol;\n\
1640 the argument used by %d or %c must be a number.\n\
1641 If the first argument is nil, clear any existing message; let the\n\
1642 minibuffer contents show.")
1654 register Lisp_Object val
;
1655 val
= Fformat (nargs
, args
);
1656 /* Copy the data so that it won't move when we GC. */
1659 message_text
= (char *)xmalloc (80);
1660 message_length
= 80;
1662 if (XSTRING (val
)->size
> message_length
)
1664 message_length
= XSTRING (val
)->size
;
1665 message_text
= (char *)xrealloc (message_text
, message_length
);
1667 bcopy (XSTRING (val
)->data
, message_text
, XSTRING (val
)->size
);
1668 message2 (message_text
, XSTRING (val
)->size
);
1673 DEFUN ("message-box", Fmessage_box
, Smessage_box
, 1, MANY
, 0,
1674 "Display a message, in a dialog box if possible.\n\
1675 If a dialog box is not available, use the echo area.\n\
1676 The first argument is a control string.\n\
1677 It may contain %s or %d or %c to print successive following arguments.\n\
1678 %s means print an argument as a string, %d means print as number in decimal,\n\
1679 %c means print a number as a single character.\n\
1680 The argument used by %s must be a string or a symbol;\n\
1681 the argument used by %d or %c must be a number.\n\
1682 If the first argument is nil, clear any existing message; let the\n\
1683 minibuffer contents show.")
1695 register Lisp_Object val
;
1696 val
= Fformat (nargs
, args
);
1699 Lisp_Object pane
, menu
, obj
;
1700 struct gcpro gcpro1
;
1701 pane
= Fcons (Fcons (build_string ("OK"), Qt
), Qnil
);
1703 menu
= Fcons (val
, pane
);
1704 obj
= Fx_popup_dialog (Qt
, menu
);
1709 /* Copy the data so that it won't move when we GC. */
1712 message_text
= (char *)xmalloc (80);
1713 message_length
= 80;
1715 if (XSTRING (val
)->size
> message_length
)
1717 message_length
= XSTRING (val
)->size
;
1718 message_text
= (char *)xrealloc (message_text
, message_length
);
1720 bcopy (XSTRING (val
)->data
, message_text
, XSTRING (val
)->size
);
1721 message2 (message_text
, XSTRING (val
)->size
);
1727 extern Lisp_Object last_nonmenu_event
;
1729 DEFUN ("message-or-box", Fmessage_or_box
, Smessage_or_box
, 1, MANY
, 0,
1730 "Display a message in a dialog box or in the echo area.\n\
1731 If this command was invoked with the mouse, use a dialog box.\n\
1732 Otherwise, use the echo area.\n\
1734 The first argument is a control string.\n\
1735 It may contain %s or %d or %c to print successive following arguments.\n\
1736 %s means print an argument as a string, %d means print as number in decimal,\n\
1737 %c means print a number as a single character.\n\
1738 The argument used by %s must be a string or a symbol;\n\
1739 the argument used by %d or %c must be a number.\n\
1740 If the first argument is nil, clear any existing message; let the\n\
1741 minibuffer contents show.")
1747 if (NILP (last_nonmenu_event
) || CONSP (last_nonmenu_event
))
1748 return Fmessage_box (nargs
, args
);
1750 return Fmessage (nargs
, args
);
1753 DEFUN ("format", Fformat
, Sformat
, 1, MANY
, 0,
1754 "Format a string out of a control-string and arguments.\n\
1755 The first argument is a control string.\n\
1756 The other arguments are substituted into it to make the result, a string.\n\
1757 It may contain %-sequences meaning to substitute the next argument.\n\
1758 %s means print a string argument. Actually, prints any object, with `princ'.\n\
1759 %d means print as number in decimal (%o octal, %x hex).\n\
1760 %c means print a number as a single character.\n\
1761 %S means print any object as an s-expression (using prin1).\n\
1762 The argument used for %d, %o, %x or %c must be a number.\n\
1763 Use %% to put a single % into the output.")
1766 register Lisp_Object
*args
;
1768 register int n
; /* The number of the next arg to substitute */
1769 register int total
= 5; /* An estimate of the final length */
1771 register unsigned char *format
, *end
;
1773 extern char *index ();
1774 /* It should not be necessary to GCPRO ARGS, because
1775 the caller in the interpreter should take care of that. */
1777 CHECK_STRING (args
[0], 0);
1778 format
= XSTRING (args
[0])->data
;
1779 end
= format
+ XSTRING (args
[0])->size
;
1782 while (format
!= end
)
1783 if (*format
++ == '%')
1787 /* Process a numeric arg and skip it. */
1788 minlen
= atoi (format
);
1793 while ((*format
>= '0' && *format
<= '9')
1794 || *format
== '-' || *format
== ' ' || *format
== '.')
1799 else if (++n
>= nargs
)
1800 error ("not enough arguments for format string");
1801 else if (*format
== 'S')
1803 /* For `S', prin1 the argument and then treat like a string. */
1804 register Lisp_Object tem
;
1805 tem
= Fprin1_to_string (args
[n
], Qnil
);
1809 else if (SYMBOLP (args
[n
]))
1811 XSETSTRING (args
[n
], XSYMBOL (args
[n
])->name
);
1814 else if (STRINGP (args
[n
]))
1817 if (*format
!= 's' && *format
!= 'S')
1818 error ("format specifier doesn't match argument type");
1819 total
+= XSTRING (args
[n
])->size
;
1821 /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */
1822 else if (INTEGERP (args
[n
]) && *format
!= 's')
1824 #ifdef LISP_FLOAT_TYPE
1825 /* The following loop assumes the Lisp type indicates
1826 the proper way to pass the argument.
1827 So make sure we have a flonum if the argument should
1829 if (*format
== 'e' || *format
== 'f' || *format
== 'g')
1830 args
[n
] = Ffloat (args
[n
]);
1834 #ifdef LISP_FLOAT_TYPE
1835 else if (FLOATP (args
[n
]) && *format
!= 's')
1837 if (! (*format
== 'e' || *format
== 'f' || *format
== 'g'))
1838 args
[n
] = Ftruncate (args
[n
]);
1844 /* Anything but a string, convert to a string using princ. */
1845 register Lisp_Object tem
;
1846 tem
= Fprin1_to_string (args
[n
], Qt
);
1853 register int nstrings
= n
+ 1;
1855 /* Allocate twice as many strings as we have %-escapes; floats occupy
1856 two slots, and we're not sure how many of those we have. */
1857 register unsigned char **strings
1858 = (unsigned char **) alloca (2 * nstrings
* sizeof (unsigned char *));
1862 for (n
= 0; n
< nstrings
; n
++)
1865 strings
[i
++] = (unsigned char *) "";
1866 else if (INTEGERP (args
[n
]))
1867 /* We checked above that the corresponding format effector
1868 isn't %s, which would cause MPV. */
1869 strings
[i
++] = (unsigned char *) XINT (args
[n
]);
1870 #ifdef LISP_FLOAT_TYPE
1871 else if (FLOATP (args
[n
]))
1873 union { double d
; char *half
[2]; } u
;
1875 u
.d
= XFLOAT (args
[n
])->data
;
1876 strings
[i
++] = (unsigned char *) u
.half
[0];
1877 strings
[i
++] = (unsigned char *) u
.half
[1];
1881 strings
[i
++] = XSTRING (args
[n
])->data
;
1884 /* Format it in bigger and bigger buf's until it all fits. */
1887 buf
= (char *) alloca (total
+ 1);
1890 length
= doprnt (buf
, total
+ 1, strings
[0], end
, i
-1, strings
+ 1);
1891 if (buf
[total
- 1] == 0)
1899 return make_string (buf
, length
);
1905 format1 (string1
, arg0
, arg1
, arg2
, arg3
, arg4
)
1906 EMACS_INT arg0
, arg1
, arg2
, arg3
, arg4
;
1920 doprnt (buf
, sizeof buf
, string1
, (char *)0, 5, args
);
1922 doprnt (buf
, sizeof buf
, string1
, (char *)0, 5, &string1
+ 1);
1924 return build_string (buf
);
1927 DEFUN ("char-equal", Fchar_equal
, Schar_equal
, 2, 2, 0,
1928 "Return t if two characters match, optionally ignoring case.\n\
1929 Both arguments must be characters (i.e. integers).\n\
1930 Case is ignored if `case-fold-search' is non-nil in the current buffer.")
1932 register Lisp_Object c1
, c2
;
1934 unsigned char *downcase
= DOWNCASE_TABLE
;
1935 CHECK_NUMBER (c1
, 0);
1936 CHECK_NUMBER (c2
, 1);
1938 if (!NILP (current_buffer
->case_fold_search
)
1939 ? (downcase
[0xff & XFASTINT (c1
)] == downcase
[0xff & XFASTINT (c2
)]
1940 && (XFASTINT (c1
) & ~0xff) == (XFASTINT (c2
) & ~0xff))
1941 : XINT (c1
) == XINT (c2
))
1946 /* Transpose the markers in two regions of the current buffer, and
1947 adjust the ones between them if necessary (i.e.: if the regions
1950 Traverses the entire marker list of the buffer to do so, adding an
1951 appropriate amount to some, subtracting from some, and leaving the
1952 rest untouched. Most of this is copied from adjust_markers in insdel.c.
1954 It's the caller's job to see that (start1 <= end1 <= start2 <= end2). */
1957 transpose_markers (start1
, end1
, start2
, end2
)
1958 register int start1
, end1
, start2
, end2
;
1960 register int amt1
, amt2
, diff
, mpos
;
1961 register Lisp_Object marker
;
1963 /* Update point as if it were a marker. */
1967 TEMP_SET_PT (PT
+ (end2
- end1
));
1968 else if (PT
< start2
)
1969 TEMP_SET_PT (PT
+ (end2
- start2
) - (end1
- start1
));
1971 TEMP_SET_PT (PT
- (start2
- start1
));
1973 /* We used to adjust the endpoints here to account for the gap, but that
1974 isn't good enough. Even if we assume the caller has tried to move the
1975 gap out of our way, it might still be at start1 exactly, for example;
1976 and that places it `inside' the interval, for our purposes. The amount
1977 of adjustment is nontrivial if there's a `denormalized' marker whose
1978 position is between GPT and GPT + GAP_SIZE, so it's simpler to leave
1979 the dirty work to Fmarker_position, below. */
1981 /* The difference between the region's lengths */
1982 diff
= (end2
- start2
) - (end1
- start1
);
1984 /* For shifting each marker in a region by the length of the other
1985 * region plus the distance between the regions.
1987 amt1
= (end2
- start2
) + (start2
- end1
);
1988 amt2
= (end1
- start1
) + (start2
- end1
);
1990 for (marker
= BUF_MARKERS (current_buffer
); !NILP (marker
);
1991 marker
= XMARKER (marker
)->chain
)
1993 mpos
= Fmarker_position (marker
);
1994 if (mpos
>= start1
&& mpos
< end2
)
1998 else if (mpos
< start2
)
2002 if (mpos
> GPT
) mpos
+= GAP_SIZE
;
2003 XMARKER (marker
)->bufpos
= mpos
;
2008 DEFUN ("transpose-regions", Ftranspose_regions
, Stranspose_regions
, 4, 5, 0,
2009 "Transpose region START1 to END1 with START2 to END2.\n\
2010 The regions may not be overlapping, because the size of the buffer is\n\
2011 never changed in a transposition.\n\
2013 Optional fifth arg LEAVE_MARKERS, if non-nil, means don't transpose\n\
2014 any markers that happen to be located in the regions.\n\
2016 Transposing beyond buffer boundaries is an error.")
2017 (startr1
, endr1
, startr2
, endr2
, leave_markers
)
2018 Lisp_Object startr1
, endr1
, startr2
, endr2
, leave_markers
;
2020 register int start1
, end1
, start2
, end2
,
2021 gap
, len1
, len_mid
, len2
;
2022 unsigned char *start1_addr
, *start2_addr
, *temp
;
2024 #ifdef USE_TEXT_PROPERTIES
2025 INTERVAL cur_intv
, tmp_interval1
, tmp_interval_mid
, tmp_interval2
;
2026 cur_intv
= BUF_INTERVALS (current_buffer
);
2027 #endif /* USE_TEXT_PROPERTIES */
2029 validate_region (&startr1
, &endr1
);
2030 validate_region (&startr2
, &endr2
);
2032 start1
= XFASTINT (startr1
);
2033 end1
= XFASTINT (endr1
);
2034 start2
= XFASTINT (startr2
);
2035 end2
= XFASTINT (endr2
);
2038 /* Swap the regions if they're reversed. */
2041 register int glumph
= start1
;
2049 len1
= end1
- start1
;
2050 len2
= end2
- start2
;
2053 error ("transposed regions not properly ordered");
2054 else if (start1
== end1
|| start2
== end2
)
2055 error ("transposed region may not be of length 0");
2057 /* The possibilities are:
2058 1. Adjacent (contiguous) regions, or separate but equal regions
2059 (no, really equal, in this case!), or
2060 2. Separate regions of unequal size.
2062 The worst case is usually No. 2. It means that (aside from
2063 potential need for getting the gap out of the way), there also
2064 needs to be a shifting of the text between the two regions. So
2065 if they are spread far apart, we are that much slower... sigh. */
2067 /* It must be pointed out that the really studly thing to do would
2068 be not to move the gap at all, but to leave it in place and work
2069 around it if necessary. This would be extremely efficient,
2070 especially considering that people are likely to do
2071 transpositions near where they are working interactively, which
2072 is exactly where the gap would be found. However, such code
2073 would be much harder to write and to read. So, if you are
2074 reading this comment and are feeling squirrely, by all means have
2075 a go! I just didn't feel like doing it, so I will simply move
2076 the gap the minimum distance to get it out of the way, and then
2077 deal with an unbroken array. */
2079 /* Make sure the gap won't interfere, by moving it out of the text
2080 we will operate on. */
2081 if (start1
< gap
&& gap
< end2
)
2083 if (gap
- start1
< end2
- gap
)
2089 /* Hmmm... how about checking to see if the gap is large
2090 enough to use as the temporary storage? That would avoid an
2091 allocation... interesting. Later, don't fool with it now. */
2093 /* Working without memmove, for portability (sigh), so must be
2094 careful of overlapping subsections of the array... */
2096 if (end1
== start2
) /* adjacent regions */
2098 modify_region (current_buffer
, start1
, end2
);
2099 record_change (start1
, len1
+ len2
);
2101 #ifdef USE_TEXT_PROPERTIES
2102 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
2103 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
2104 Fset_text_properties (start1
, end2
, Qnil
, Qnil
);
2105 #endif /* USE_TEXT_PROPERTIES */
2107 /* First region smaller than second. */
2110 /* We use alloca only if it is small,
2111 because we want to avoid stack overflow. */
2113 temp
= (unsigned char *) xmalloc (len2
);
2115 temp
= (unsigned char *) alloca (len2
);
2117 /* Don't precompute these addresses. We have to compute them
2118 at the last minute, because the relocating allocator might
2119 have moved the buffer around during the xmalloc. */
2120 start1_addr
= BUF_CHAR_ADDRESS (current_buffer
, start1
);
2121 start2_addr
= BUF_CHAR_ADDRESS (current_buffer
, start2
);
2123 bcopy (start2_addr
, temp
, len2
);
2124 bcopy (start1_addr
, start1_addr
+ len2
, len1
);
2125 bcopy (temp
, start1_addr
, len2
);
2130 /* First region not smaller than second. */
2133 temp
= (unsigned char *) xmalloc (len1
);
2135 temp
= (unsigned char *) alloca (len1
);
2136 start1_addr
= BUF_CHAR_ADDRESS (current_buffer
, start1
);
2137 start2_addr
= BUF_CHAR_ADDRESS (current_buffer
, start2
);
2138 bcopy (start1_addr
, temp
, len1
);
2139 bcopy (start2_addr
, start1_addr
, len2
);
2140 bcopy (temp
, start1_addr
+ len2
, len1
);
2144 #ifdef USE_TEXT_PROPERTIES
2145 graft_intervals_into_buffer (tmp_interval1
, start1
+ len2
,
2146 len1
, current_buffer
, 0);
2147 graft_intervals_into_buffer (tmp_interval2
, start1
,
2148 len2
, current_buffer
, 0);
2149 #endif /* USE_TEXT_PROPERTIES */
2151 /* Non-adjacent regions, because end1 != start2, bleagh... */
2155 /* Regions are same size, though, how nice. */
2157 modify_region (current_buffer
, start1
, end1
);
2158 modify_region (current_buffer
, start2
, end2
);
2159 record_change (start1
, len1
);
2160 record_change (start2
, len2
);
2161 #ifdef USE_TEXT_PROPERTIES
2162 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
2163 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
2164 Fset_text_properties (start1
, end1
, Qnil
, Qnil
);
2165 Fset_text_properties (start2
, end2
, Qnil
, Qnil
);
2166 #endif /* USE_TEXT_PROPERTIES */
2169 temp
= (unsigned char *) xmalloc (len1
);
2171 temp
= (unsigned char *) alloca (len1
);
2172 start1_addr
= BUF_CHAR_ADDRESS (current_buffer
, start1
);
2173 start2_addr
= BUF_CHAR_ADDRESS (current_buffer
, start2
);
2174 bcopy (start1_addr
, temp
, len1
);
2175 bcopy (start2_addr
, start1_addr
, len2
);
2176 bcopy (temp
, start2_addr
, len1
);
2179 #ifdef USE_TEXT_PROPERTIES
2180 graft_intervals_into_buffer (tmp_interval1
, start2
,
2181 len1
, current_buffer
, 0);
2182 graft_intervals_into_buffer (tmp_interval2
, start1
,
2183 len2
, current_buffer
, 0);
2184 #endif /* USE_TEXT_PROPERTIES */
2187 else if (len1
< len2
) /* Second region larger than first */
2188 /* Non-adjacent & unequal size, area between must also be shifted. */
2190 len_mid
= start2
- end1
;
2191 modify_region (current_buffer
, start1
, end2
);
2192 record_change (start1
, (end2
- start1
));
2193 #ifdef USE_TEXT_PROPERTIES
2194 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
2195 tmp_interval_mid
= copy_intervals (cur_intv
, end1
, len_mid
);
2196 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
2197 Fset_text_properties (start1
, end2
, Qnil
, Qnil
);
2198 #endif /* USE_TEXT_PROPERTIES */
2200 /* holds region 2 */
2202 temp
= (unsigned char *) xmalloc (len2
);
2204 temp
= (unsigned char *) alloca (len2
);
2205 start1_addr
= BUF_CHAR_ADDRESS (current_buffer
, start1
);
2206 start2_addr
= BUF_CHAR_ADDRESS (current_buffer
, start2
);
2207 bcopy (start2_addr
, temp
, len2
);
2208 bcopy (start1_addr
, start1_addr
+ len_mid
+ len2
, len1
);
2209 safe_bcopy (start1_addr
+ len1
, start1_addr
+ len2
, len_mid
);
2210 bcopy (temp
, start1_addr
, len2
);
2213 #ifdef USE_TEXT_PROPERTIES
2214 graft_intervals_into_buffer (tmp_interval1
, end2
- len1
,
2215 len1
, current_buffer
, 0);
2216 graft_intervals_into_buffer (tmp_interval_mid
, start1
+ len2
,
2217 len_mid
, current_buffer
, 0);
2218 graft_intervals_into_buffer (tmp_interval2
, start1
,
2219 len2
, current_buffer
, 0);
2220 #endif /* USE_TEXT_PROPERTIES */
2223 /* Second region smaller than first. */
2225 len_mid
= start2
- end1
;
2226 record_change (start1
, (end2
- start1
));
2227 modify_region (current_buffer
, start1
, end2
);
2229 #ifdef USE_TEXT_PROPERTIES
2230 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
2231 tmp_interval_mid
= copy_intervals (cur_intv
, end1
, len_mid
);
2232 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
2233 Fset_text_properties (start1
, end2
, Qnil
, Qnil
);
2234 #endif /* USE_TEXT_PROPERTIES */
2236 /* holds region 1 */
2238 temp
= (unsigned char *) xmalloc (len1
);
2240 temp
= (unsigned char *) alloca (len1
);
2241 start1_addr
= BUF_CHAR_ADDRESS (current_buffer
, start1
);
2242 start2_addr
= BUF_CHAR_ADDRESS (current_buffer
, start2
);
2243 bcopy (start1_addr
, temp
, len1
);
2244 bcopy (start2_addr
, start1_addr
, len2
);
2245 bcopy (start1_addr
+ len1
, start1_addr
+ len2
, len_mid
);
2246 bcopy (temp
, start1_addr
+ len2
+ len_mid
, len1
);
2249 #ifdef USE_TEXT_PROPERTIES
2250 graft_intervals_into_buffer (tmp_interval1
, end2
- len1
,
2251 len1
, current_buffer
, 0);
2252 graft_intervals_into_buffer (tmp_interval_mid
, start1
+ len2
,
2253 len_mid
, current_buffer
, 0);
2254 graft_intervals_into_buffer (tmp_interval2
, start1
,
2255 len2
, current_buffer
, 0);
2256 #endif /* USE_TEXT_PROPERTIES */
2260 /* todo: this will be slow, because for every transposition, we
2261 traverse the whole friggin marker list. Possible solutions:
2262 somehow get a list of *all* the markers across multiple
2263 transpositions and do it all in one swell phoop. Or maybe modify
2264 Emacs' marker code to keep an ordered list or tree. This might
2265 be nicer, and more beneficial in the long run, but would be a
2266 bunch of work. Plus the way they're arranged now is nice. */
2267 if (NILP (leave_markers
))
2269 transpose_markers (start1
, end1
, start2
, end2
);
2270 fix_overlays_in_range (start1
, end2
);
2280 DEFVAR_LISP ("system-name", &Vsystem_name
,
2281 "The name of the machine Emacs is running on.");
2283 DEFVAR_LISP ("user-full-name", &Vuser_full_name
,
2284 "The full name of the user logged in.");
2286 DEFVAR_LISP ("user-name", &Vuser_name
,
2287 "The user's name, taken from environment variables if possible.");
2289 DEFVAR_LISP ("user-real-name", &Vuser_real_name
,
2290 "The user's name, based upon the real uid only.");
2292 defsubr (&Schar_equal
);
2293 defsubr (&Sgoto_char
);
2294 defsubr (&Sstring_to_char
);
2295 defsubr (&Schar_to_string
);
2296 defsubr (&Sbuffer_substring
);
2297 defsubr (&Sbuffer_string
);
2299 defsubr (&Spoint_marker
);
2300 defsubr (&Smark_marker
);
2302 defsubr (&Sregion_beginning
);
2303 defsubr (&Sregion_end
);
2304 /* defsubr (&Smark); */
2305 /* defsubr (&Sset_mark); */
2306 defsubr (&Ssave_excursion
);
2308 defsubr (&Sbufsize
);
2309 defsubr (&Spoint_max
);
2310 defsubr (&Spoint_min
);
2311 defsubr (&Spoint_min_marker
);
2312 defsubr (&Spoint_max_marker
);
2318 defsubr (&Sfollowing_char
);
2319 defsubr (&Sprevious_char
);
2320 defsubr (&Schar_after
);
2322 defsubr (&Sinsert_before_markers
);
2323 defsubr (&Sinsert_and_inherit
);
2324 defsubr (&Sinsert_and_inherit_before_markers
);
2325 defsubr (&Sinsert_char
);
2327 defsubr (&Suser_login_name
);
2328 defsubr (&Suser_real_login_name
);
2329 defsubr (&Suser_uid
);
2330 defsubr (&Suser_real_uid
);
2331 defsubr (&Suser_full_name
);
2332 defsubr (&Semacs_pid
);
2333 defsubr (&Scurrent_time
);
2334 defsubr (&Sformat_time_string
);
2335 defsubr (&Sdecode_time
);
2336 defsubr (&Sencode_time
);
2337 defsubr (&Scurrent_time_string
);
2338 defsubr (&Scurrent_time_zone
);
2339 defsubr (&Ssystem_name
);
2340 defsubr (&Smessage
);
2341 defsubr (&Smessage_box
);
2342 defsubr (&Smessage_or_box
);
2345 defsubr (&Sinsert_buffer_substring
);
2346 defsubr (&Scompare_buffer_substrings
);
2347 defsubr (&Ssubst_char_in_region
);
2348 defsubr (&Stranslate_region
);
2349 defsubr (&Sdelete_region
);
2351 defsubr (&Snarrow_to_region
);
2352 defsubr (&Ssave_restriction
);
2353 defsubr (&Stranspose_regions
);