1 /* Lisp functions pertaining to editing.
2 Copyright (C) 1985,86,87,89,93,94,95,96,97,98, 1999, 2000
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
24 #include <sys/types.h>
37 #include "intervals.h"
45 #define min(a, b) ((a) < (b) ? (a) : (b))
46 #define max(a, b) ((a) > (b) ? (a) : (b))
53 extern char **environ
;
56 extern Lisp_Object make_time
P_ ((time_t));
57 extern size_t emacs_strftimeu
P_ ((char *, size_t, const char *,
58 const struct tm
*, int));
59 static int tm_diff
P_ ((struct tm
*, struct tm
*));
60 static void find_field
P_ ((Lisp_Object
, Lisp_Object
, int *, int *));
61 static void update_buffer_properties
P_ ((int, int));
62 static Lisp_Object region_limit
P_ ((int));
63 static int lisp_time_argument
P_ ((Lisp_Object
, time_t *, int *));
64 static size_t emacs_memftimeu
P_ ((char *, size_t, const char *,
65 size_t, const struct tm
*, int));
66 static void general_insert_function
P_ ((void (*) (unsigned char *, int),
67 void (*) (Lisp_Object
, int, int, int,
69 int, int, Lisp_Object
*));
70 static Lisp_Object subst_char_in_region_unwind
P_ ((Lisp_Object
));
71 static Lisp_Object subst_char_in_region_unwind_1
P_ ((Lisp_Object
));
72 static void transpose_markers
P_ ((int, int, int, int, int, int, int, int));
75 extern char *index
P_ ((const char *, int));
78 Lisp_Object Vbuffer_access_fontify_functions
;
79 Lisp_Object Qbuffer_access_fontify_functions
;
80 Lisp_Object Vbuffer_access_fontified_property
;
82 Lisp_Object Fuser_full_name
P_ ((Lisp_Object
));
84 /* Non-nil means don't stop at field boundary in text motion commands. */
86 Lisp_Object Vinhibit_field_text_motion
;
88 /* Some static data, and a function to initialize it for each run */
90 Lisp_Object Vsystem_name
;
91 Lisp_Object Vuser_real_login_name
; /* login name of current user ID */
92 Lisp_Object Vuser_full_name
; /* full name of current user */
93 Lisp_Object Vuser_login_name
; /* user name from LOGNAME or USER */
95 /* Symbol for the text property used to mark fields. */
99 /* A special value for Qfield properties. */
101 Lisp_Object Qboundary
;
108 register unsigned char *p
;
109 struct passwd
*pw
; /* password entry for the current user */
112 /* Set up system_name even when dumping. */
116 /* Don't bother with this on initial start when just dumping out */
119 #endif /* not CANNOT_DUMP */
121 pw
= (struct passwd
*) getpwuid (getuid ());
123 /* We let the real user name default to "root" because that's quite
124 accurate on MSDOG and because it lets Emacs find the init file.
125 (The DVX libraries override the Djgpp libraries here.) */
126 Vuser_real_login_name
= build_string (pw
? pw
->pw_name
: "root");
128 Vuser_real_login_name
= build_string (pw
? pw
->pw_name
: "unknown");
131 /* Get the effective user name, by consulting environment variables,
132 or the effective uid if those are unset. */
133 user_name
= (char *) getenv ("LOGNAME");
136 user_name
= (char *) getenv ("USERNAME"); /* it's USERNAME on NT */
137 #else /* WINDOWSNT */
138 user_name
= (char *) getenv ("USER");
139 #endif /* WINDOWSNT */
142 pw
= (struct passwd
*) getpwuid (geteuid ());
143 user_name
= (char *) (pw
? pw
->pw_name
: "unknown");
145 Vuser_login_name
= build_string (user_name
);
147 /* If the user name claimed in the environment vars differs from
148 the real uid, use the claimed name to find the full name. */
149 tem
= Fstring_equal (Vuser_login_name
, Vuser_real_login_name
);
150 Vuser_full_name
= Fuser_full_name (NILP (tem
)? make_number (geteuid())
153 p
= (unsigned char *) getenv ("NAME");
155 Vuser_full_name
= build_string (p
);
156 else if (NILP (Vuser_full_name
))
157 Vuser_full_name
= build_string ("unknown");
160 DEFUN ("char-to-string", Fchar_to_string
, Schar_to_string
, 1, 1, 0,
161 "Convert arg CHAR to a string containing that character.")
163 Lisp_Object character
;
166 unsigned char str
[MAX_MULTIBYTE_LENGTH
];
168 CHECK_NUMBER (character
, 0);
170 len
= CHAR_STRING (XFASTINT (character
), str
);
171 return make_string_from_bytes (str
, 1, len
);
174 DEFUN ("string-to-char", Fstring_to_char
, Sstring_to_char
, 1, 1, 0,
175 "Convert arg STRING to a character, the first character of that string.\n\
176 A multibyte character is handled correctly.")
178 register Lisp_Object string
;
180 register Lisp_Object val
;
181 register struct Lisp_String
*p
;
182 CHECK_STRING (string
, 0);
183 p
= XSTRING (string
);
186 if (STRING_MULTIBYTE (string
))
187 XSETFASTINT (val
, STRING_CHAR (p
->data
, STRING_BYTES (p
)));
189 XSETFASTINT (val
, p
->data
[0]);
192 XSETFASTINT (val
, 0);
197 buildmark (charpos
, bytepos
)
198 int charpos
, bytepos
;
200 register Lisp_Object mark
;
201 mark
= Fmake_marker ();
202 set_marker_both (mark
, Qnil
, charpos
, bytepos
);
206 DEFUN ("point", Fpoint
, Spoint
, 0, 0, 0,
207 "Return value of point, as an integer.\n\
208 Beginning of buffer is position (point-min)")
212 XSETFASTINT (temp
, PT
);
216 DEFUN ("point-marker", Fpoint_marker
, Spoint_marker
, 0, 0, 0,
217 "Return value of point, as a marker object.")
220 return buildmark (PT
, PT_BYTE
);
224 clip_to_bounds (lower
, num
, upper
)
225 int lower
, num
, upper
;
229 else if (num
> upper
)
235 DEFUN ("goto-char", Fgoto_char
, Sgoto_char
, 1, 1, "NGoto char: ",
236 "Set point to POSITION, a number or marker.\n\
237 Beginning of buffer is position (point-min), end is (point-max).\n\
238 If the position is in the middle of a multibyte form,\n\
239 the actual point is set at the head of the multibyte form\n\
240 except in the case that `enable-multibyte-characters' is nil.")
242 register Lisp_Object position
;
246 if (MARKERP (position
)
247 && current_buffer
== XMARKER (position
)->buffer
)
249 pos
= marker_position (position
);
251 SET_PT_BOTH (BEGV
, BEGV_BYTE
);
253 SET_PT_BOTH (ZV
, ZV_BYTE
);
255 SET_PT_BOTH (pos
, marker_byte_position (position
));
260 CHECK_NUMBER_COERCE_MARKER (position
, 0);
262 pos
= clip_to_bounds (BEGV
, XINT (position
), ZV
);
268 /* Return the start or end position of the region.
269 BEGINNINGP non-zero means return the start.
270 If there is no region active, signal an error. */
273 region_limit (beginningp
)
276 extern Lisp_Object Vmark_even_if_inactive
; /* Defined in callint.c. */
279 if (!NILP (Vtransient_mark_mode
)
280 && NILP (Vmark_even_if_inactive
)
281 && NILP (current_buffer
->mark_active
))
282 Fsignal (Qmark_inactive
, Qnil
);
284 m
= Fmarker_position (current_buffer
->mark
);
286 error ("There is no region now");
288 if ((PT
< XFASTINT (m
)) == beginningp
)
289 m
= make_number (PT
);
293 DEFUN ("region-beginning", Fregion_beginning
, Sregion_beginning
, 0, 0, 0,
294 "Return position of beginning of region, as an integer.")
297 return region_limit (1);
300 DEFUN ("region-end", Fregion_end
, Sregion_end
, 0, 0, 0,
301 "Return position of end of region, as an integer.")
304 return region_limit (0);
307 DEFUN ("mark-marker", Fmark_marker
, Smark_marker
, 0, 0, 0,
308 "Return this buffer's mark, as a marker object.\n\
309 Watch out! Moving this marker changes the mark position.\n\
310 If you set the marker not to point anywhere, the buffer will have no mark.")
313 return current_buffer
->mark
;
317 /* Return nonzero if POS1 and POS2 have the same value
318 for the text property PROP. */
321 char_property_eq (prop
, pos1
, pos2
)
323 Lisp_Object pos1
, pos2
;
325 Lisp_Object pval1
, pval2
;
327 pval1
= Fget_char_property (pos1
, prop
, Qnil
);
328 pval2
= Fget_char_property (pos2
, prop
, Qnil
);
330 return EQ (pval1
, pval2
);
333 /* Return the direction from which the text-property PROP would be
334 inherited by any new text inserted at POS: 1 if it would be
335 inherited from the char after POS, -1 if it would be inherited from
336 the char before POS, and 0 if from neither. */
339 text_property_stickiness (prop
, pos
)
343 Lisp_Object front_sticky
;
345 if (XINT (pos
) > BEGV
)
346 /* Consider previous character. */
348 Lisp_Object prev_pos
, rear_non_sticky
;
350 prev_pos
= make_number (XINT (pos
) - 1);
351 rear_non_sticky
= Fget_text_property (prev_pos
, Qrear_nonsticky
, Qnil
);
353 if (EQ (rear_non_sticky
, Qnil
)
354 || (CONSP (rear_non_sticky
)
355 && NILP (Fmemq (prop
, rear_non_sticky
))))
356 /* PROP is not rear-non-sticky, and since this takes precedence over
357 any front-stickiness, PROP is inherited from before. */
361 /* Consider following character. */
362 front_sticky
= Fget_text_property (pos
, Qfront_sticky
, Qnil
);
364 if (EQ (front_sticky
, Qt
)
365 || (CONSP (front_sticky
)
366 && !NILP (Fmemq (prop
, front_sticky
))))
367 /* PROP is inherited from after. */
370 /* PROP is not inherited from either side. */
375 /* Find the field surrounding POS in *BEG and *END. If POS is nil,
376 the value of point is used instead. If BEG or END null,
377 means don't store the beginning or end of the field.
379 If MERGE_AT_BOUNDARY is nonzero, then if POS is at the very first
380 position of a field, then the beginning of the previous field is
381 returned instead of the beginning of POS's field (since the end of a
382 field is actually also the beginning of the next input field, this
383 behavior is sometimes useful). Additionally in the MERGE_AT_BOUNDARY
384 true case, if two fields are separated by a field with the special
385 value `boundary', and POS lies within it, then the two separated
386 fields are considered to be adjacent, and POS between them, when
387 finding the beginning and ending of the "merged" field.
389 Either BEG or END may be 0, in which case the corresponding value
393 find_field (pos
, merge_at_boundary
, beg
, end
)
395 Lisp_Object merge_at_boundary
;
398 /* Fields right before and after the point. */
399 Lisp_Object before_field
, after_field
;
400 /* If the fields came from overlays, the associated overlays.
401 Qnil means they came from text-properties. */
402 Lisp_Object before_overlay
= Qnil
, after_overlay
= Qnil
;
403 /* 1 if POS counts as the start of a field. */
404 int at_field_start
= 0;
405 /* 1 if POS counts as the end of a field. */
406 int at_field_end
= 0;
409 XSETFASTINT (pos
, PT
);
411 CHECK_NUMBER_COERCE_MARKER (pos
, 0);
414 = get_char_property_and_overlay (pos
, Qfield
, Qnil
, &after_overlay
);
416 = (XFASTINT (pos
) > BEGV
417 ? get_char_property_and_overlay (make_number (XINT (pos
) - 1),
422 /* See if we need to handle the case where MERGE_AT_BOUNDARY is nil
423 and POS is at beginning of a field, which can also be interpreted
424 as the end of the previous field. Note that the case where if
425 MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the
426 more natural one; then we avoid treating the beginning of a field
428 if (NILP (merge_at_boundary
) && !EQ (after_field
, before_field
))
429 /* We are at a boundary, see which direction is inclusive. We
430 decide by seeing which field the `field' property sticks to. */
432 /* -1 means insertions go into before_field, 1 means they go
433 into after_field, 0 means neither. */
435 /* Whether the before/after_field come from overlays. */
436 int bop
= !NILP (before_overlay
);
437 int aop
= !NILP (after_overlay
);
439 if (bop
&& XMARKER (OVERLAY_END (before_overlay
))->insertion_type
== 1)
440 /* before_field is from an overlay, which expands upon
441 end-insertions. Note that it's possible for after_overlay to
442 also eat insertions here, but then they will overlap, and
443 there's not much we can do. */
445 else if (aop
&& XMARKER(OVERLAY_END(after_overlay
))->insertion_type
== 0)
446 /* after_field is from an overlay, which expand to contain
450 /* Both fields come from overlays, but neither will contain any
454 /* before_field is an overlay that won't eat any insertion, but
455 after_field is from a text-property. Assume that the
456 text-property continues underneath the overlay, and so will
457 be inherited by any insertion, regardless of any stickiness
461 /* Similarly, when after_field is the overlay. */
464 /* Both fields come from text-properties. Look for explicit
465 stickiness properties. */
466 stickiness
= text_property_stickiness (Qfield
, pos
);
470 else if (stickiness
< 0)
473 /* STICKINESS == 0 means that any inserted text will get a
474 `field' char-property of nil, so check to see if that
475 matches either of the adjacent characters (this being a
476 kind of "stickiness by default"). */
478 if (NILP (before_field
))
479 at_field_end
= 1; /* Sticks to the left. */
480 else if (NILP (after_field
))
481 at_field_start
= 1; /* Sticks to the right. */
485 /* Note about special `boundary' fields:
487 Consider the case where the point (`.') is between the fields `x' and `y':
491 In this situation, if merge_at_boundary is true, we consider the
492 `x' and `y' fields as forming one big merged field, and so the end
493 of the field is the end of `y'.
495 However, if `x' and `y' are separated by a special `boundary' field
496 (a field with a `field' char-property of 'boundary), then we ignore
497 this special field when merging adjacent fields. Here's the same
498 situation, but with a `boundary' field between the `x' and `y' fields:
502 Here, if point is at the end of `x', the beginning of `y', or
503 anywhere in-between (within the `boundary' field), we merge all
504 three fields and consider the beginning as being the beginning of
505 the `x' field, and the end as being the end of the `y' field. */
510 /* POS is at the edge of a field, and we should consider it as
511 the beginning of the following field. */
512 *beg
= XFASTINT (pos
);
514 /* Find the previous field boundary. */
516 if (!NILP (merge_at_boundary
) && EQ (before_field
, Qboundary
))
517 /* Skip a `boundary' field. */
518 pos
= Fprevious_single_char_property_change (pos
, Qfield
, Qnil
,Qnil
);
520 pos
= Fprevious_single_char_property_change (pos
, Qfield
, Qnil
, Qnil
);
521 *beg
= NILP (pos
) ? BEGV
: XFASTINT (pos
);
528 /* POS is at the edge of a field, and we should consider it as
529 the end of the previous field. */
530 *end
= XFASTINT (pos
);
532 /* Find the next field boundary. */
534 if (!NILP (merge_at_boundary
) && EQ (after_field
, Qboundary
))
535 /* Skip a `boundary' field. */
536 pos
= Fnext_single_char_property_change (pos
, Qfield
, Qnil
, Qnil
);
538 pos
= Fnext_single_char_property_change (pos
, Qfield
, Qnil
, Qnil
);
539 *end
= NILP (pos
) ? ZV
: XFASTINT (pos
);
545 DEFUN ("delete-field", Fdelete_field
, Sdelete_field
, 0, 1, 0,
546 "Delete the field surrounding POS.\n\
547 A field is a region of text with the same `field' property.\n\
548 If POS is nil, the value of point is used for POS.")
553 find_field (pos
, Qnil
, &beg
, &end
);
555 del_range (beg
, end
);
559 DEFUN ("field-string", Ffield_string
, Sfield_string
, 0, 1, 0,
560 "Return the contents of the field surrounding POS as a string.\n\
561 A field is a region of text with the same `field' property.\n\
562 If POS is nil, the value of point is used for POS.")
567 find_field (pos
, Qnil
, &beg
, &end
);
568 return make_buffer_string (beg
, end
, 1);
571 DEFUN ("field-string-no-properties", Ffield_string_no_properties
, Sfield_string_no_properties
, 0, 1, 0,
572 "Return the contents of the field around POS, without text-properties.\n\
573 A field is a region of text with the same `field' property.\n\
574 If POS is nil, the value of point is used for POS.")
579 find_field (pos
, Qnil
, &beg
, &end
);
580 return make_buffer_string (beg
, end
, 0);
583 DEFUN ("field-beginning", Ffield_beginning
, Sfield_beginning
, 0, 2, 0,
584 "Return the beginning of the field surrounding POS.\n\
585 A field is a region of text with the same `field' property.\n\
586 If POS is nil, the value of point is used for POS.\n\
587 If ESCAPE-FROM-EDGE is non-nil and POS is at the beginning of its\n\
588 field, then the beginning of the *previous* field is returned.")
589 (pos
, escape_from_edge
)
590 Lisp_Object pos
, escape_from_edge
;
593 find_field (pos
, escape_from_edge
, &beg
, 0);
594 return make_number (beg
);
597 DEFUN ("field-end", Ffield_end
, Sfield_end
, 0, 2, 0,
598 "Return the end of the field surrounding POS.\n\
599 A field is a region of text with the same `field' property.\n\
600 If POS is nil, the value of point is used for POS.\n\
601 If ESCAPE-FROM-EDGE is non-nil and POS is at the end of its field,\n\
602 then the end of the *following* field is returned.")
603 (pos
, escape_from_edge
)
604 Lisp_Object pos
, escape_from_edge
;
607 find_field (pos
, escape_from_edge
, 0, &end
);
608 return make_number (end
);
611 DEFUN ("constrain-to-field", Fconstrain_to_field
, Sconstrain_to_field
, 2, 5, 0,
612 "Return the position closest to NEW-POS that is in the same field as OLD-POS.\n\
614 A field is a region of text with the same `field' property.\n\
615 If NEW-POS is nil, then the current point is used instead, and set to the\n\
616 constrained position if that is is different.\n\
618 If OLD-POS is at the boundary of two fields, then the allowable\n\
619 positions for NEW-POS depends on the value of the optional argument\n\
620 ESCAPE-FROM-EDGE: If ESCAPE-FROM-EDGE is nil, then NEW-POS is\n\
621 constrained to the field that has the same `field' char-property\n\
622 as any new characters inserted at OLD-POS, whereas if ESCAPE-FROM-EDGE\n\
623 is non-nil, NEW-POS is constrained to the union of the two adjacent\n\
624 fields. Additionally, if two fields are separated by another field with\n\
625 the special value `boundary', then any point within this special field is\n\
626 also considered to be `on the boundary'.\n\
628 If the optional argument ONLY-IN-LINE is non-nil and constraining\n\
629 NEW-POS would move it to a different line, NEW-POS is returned\n\
630 unconstrained. This useful for commands that move by line, like\n\
631 \\[next-line] or \\[beginning-of-line], which should generally respect field boundaries\n\
632 only in the case where they can still move to the right line.\n\
634 If the optional argument INHIBIT-CAPTURE-PROPERTY is non-nil, and OLD-POS has\n\
635 a non-nil property of that name, then any field boundaries are ignored.\n\
637 Field boundaries are not noticed if `inhibit-field-text-motion' is non-nil.")
638 (new_pos
, old_pos
, escape_from_edge
, only_in_line
, inhibit_capture_property
)
639 Lisp_Object new_pos
, old_pos
;
640 Lisp_Object escape_from_edge
, only_in_line
, inhibit_capture_property
;
642 /* If non-zero, then the original point, before re-positioning. */
646 /* Use the current point, and afterwards, set it. */
649 XSETFASTINT (new_pos
, PT
);
652 if (NILP (Vinhibit_field_text_motion
)
653 && !EQ (new_pos
, old_pos
)
654 && (!NILP (Fget_char_property (new_pos
, Qfield
, Qnil
))
655 || !NILP (Fget_char_property (old_pos
, Qfield
, Qnil
)))
656 && (NILP (inhibit_capture_property
)
657 || NILP (Fget_char_property(old_pos
, inhibit_capture_property
, Qnil
))))
658 /* NEW_POS is not within the same field as OLD_POS; try to
659 move NEW_POS so that it is. */
662 Lisp_Object field_bound
;
664 CHECK_NUMBER_COERCE_MARKER (new_pos
, 0);
665 CHECK_NUMBER_COERCE_MARKER (old_pos
, 0);
667 fwd
= (XFASTINT (new_pos
) > XFASTINT (old_pos
));
670 field_bound
= Ffield_end (old_pos
, escape_from_edge
);
672 field_bound
= Ffield_beginning (old_pos
, escape_from_edge
);
674 if (/* See if ESCAPE_FROM_EDGE caused FIELD_BOUND to jump to the
675 other side of NEW_POS, which would mean that NEW_POS is
676 already acceptable, and it's not necessary to constrain it
678 ((XFASTINT (field_bound
) < XFASTINT (new_pos
)) ? fwd
: !fwd
)
679 /* NEW_POS should be constrained, but only if either
680 ONLY_IN_LINE is nil (in which case any constraint is OK),
681 or NEW_POS and FIELD_BOUND are on the same line (in which
682 case the constraint is OK even if ONLY_IN_LINE is non-nil). */
683 && (NILP (only_in_line
)
684 /* This is the ONLY_IN_LINE case, check that NEW_POS and
685 FIELD_BOUND are on the same line by seeing whether
686 there's an intervening newline or not. */
687 || (scan_buffer ('\n',
688 XFASTINT (new_pos
), XFASTINT (field_bound
),
689 fwd
? -1 : 1, &shortage
, 1),
691 /* Constrain NEW_POS to FIELD_BOUND. */
692 new_pos
= field_bound
;
694 if (orig_point
&& XFASTINT (new_pos
) != orig_point
)
695 /* The NEW_POS argument was originally nil, so automatically set PT. */
696 SET_PT (XFASTINT (new_pos
));
703 DEFUN ("line-beginning-position", Fline_beginning_position
, Sline_beginning_position
,
705 "Return the character position of the first character on the current line.\n\
706 With argument N not nil or 1, move forward N - 1 lines first.\n\
707 If scan reaches end of buffer, return that position.\n\
708 The scan does not cross a field boundary unless it would move\n\
709 beyond there to a different line. Field boundaries are not noticed if\n\
710 `inhibit-field-text-motion' is non-nil. .And if N is nil or 1,\n\
711 and scan starts at a field boundary, the scan stops as soon as it starts.\n\
713 This function does not move point.")
717 int orig
, orig_byte
, end
;
726 Fforward_line (make_number (XINT (n
) - 1));
729 SET_PT_BOTH (orig
, orig_byte
);
731 /* Return END constrained to the current input field. */
732 return Fconstrain_to_field (make_number (end
), make_number (orig
),
733 XINT (n
) != 1 ? Qt
: Qnil
,
737 DEFUN ("line-end-position", Fline_end_position
, Sline_end_position
,
739 "Return the character position of the last character on the current line.\n\
740 With argument N not nil or 1, move forward N - 1 lines first.\n\
741 If scan reaches end of buffer, return that position.\n\
742 This function does not move point.")
754 end_pos
= find_before_next_newline (orig
, 0, XINT (n
) - (XINT (n
) <= 0));
756 /* Return END_POS constrained to the current input field. */
757 return Fconstrain_to_field (make_number (end_pos
), make_number (orig
),
762 save_excursion_save ()
764 int visible
= (XBUFFER (XWINDOW (selected_window
)->buffer
)
767 return Fcons (Fpoint_marker (),
768 Fcons (Fcopy_marker (current_buffer
->mark
, Qnil
),
769 Fcons (visible
? Qt
: Qnil
,
770 Fcons (current_buffer
->mark_active
,
775 save_excursion_restore (info
)
778 Lisp_Object tem
, tem1
, omark
, nmark
;
779 struct gcpro gcpro1
, gcpro2
, gcpro3
;
782 tem
= Fmarker_buffer (XCAR (info
));
783 /* If buffer being returned to is now deleted, avoid error */
784 /* Otherwise could get error here while unwinding to top level
786 /* In that case, Fmarker_buffer returns nil now. */
790 omark
= nmark
= Qnil
;
791 GCPRO3 (info
, omark
, nmark
);
798 unchain_marker (tem
);
803 omark
= Fmarker_position (current_buffer
->mark
);
804 Fset_marker (current_buffer
->mark
, tem
, Fcurrent_buffer ());
805 nmark
= Fmarker_position (tem
);
806 unchain_marker (tem
);
810 visible_p
= !NILP (XCAR (info
));
812 #if 0 /* We used to make the current buffer visible in the selected window
813 if that was true previously. That avoids some anomalies.
814 But it creates others, and it wasn't documented, and it is simpler
815 and cleaner never to alter the window/buffer connections. */
818 && current_buffer
!= XBUFFER (XWINDOW (selected_window
)->buffer
))
819 Fswitch_to_buffer (Fcurrent_buffer (), Qnil
);
825 tem1
= current_buffer
->mark_active
;
826 current_buffer
->mark_active
= tem
;
828 if (!NILP (Vrun_hooks
))
830 /* If mark is active now, and either was not active
831 or was at a different place, run the activate hook. */
832 if (! NILP (current_buffer
->mark_active
))
834 if (! EQ (omark
, nmark
))
835 call1 (Vrun_hooks
, intern ("activate-mark-hook"));
837 /* If mark has ceased to be active, run deactivate hook. */
838 else if (! NILP (tem1
))
839 call1 (Vrun_hooks
, intern ("deactivate-mark-hook"));
842 /* If buffer was visible in a window, and a different window was
843 selected, and the old selected window is still live, restore
844 point in that window. */
847 && !EQ (tem
, selected_window
)
848 && !NILP (Fwindow_live_p (tem
)))
849 Fset_window_point (tem
, make_number (PT
));
855 DEFUN ("save-excursion", Fsave_excursion
, Ssave_excursion
, 0, UNEVALLED
, 0,
856 "Save point, mark, and current buffer; execute BODY; restore those things.\n\
857 Executes BODY just like `progn'.\n\
858 The values of point, mark and the current buffer are restored\n\
859 even in case of abnormal exit (throw or error).\n\
860 The state of activation of the mark is also restored.\n\
862 This construct does not save `deactivate-mark', and therefore\n\
863 functions that change the buffer will still cause deactivation\n\
864 of the mark at the end of the command. To prevent that, bind\n\
865 `deactivate-mark' with `let'.")
869 register Lisp_Object val
;
870 int count
= specpdl_ptr
- specpdl
;
872 record_unwind_protect (save_excursion_restore
, save_excursion_save ());
875 return unbind_to (count
, val
);
878 DEFUN ("save-current-buffer", Fsave_current_buffer
, Ssave_current_buffer
, 0, UNEVALLED
, 0,
879 "Save the current buffer; execute BODY; restore the current buffer.\n\
880 Executes BODY just like `progn'.")
885 int count
= specpdl_ptr
- specpdl
;
887 record_unwind_protect (set_buffer_if_live
, Fcurrent_buffer ());
890 return unbind_to (count
, val
);
893 DEFUN ("buffer-size", Fbufsize
, Sbufsize
, 0, 1, 0,
894 "Return the number of characters in the current buffer.\n\
895 If BUFFER, return the number of characters in that buffer instead.")
900 return make_number (Z
- BEG
);
903 CHECK_BUFFER (buffer
, 1);
904 return make_number (BUF_Z (XBUFFER (buffer
))
905 - BUF_BEG (XBUFFER (buffer
)));
909 DEFUN ("point-min", Fpoint_min
, Spoint_min
, 0, 0, 0,
910 "Return the minimum permissible value of point in the current buffer.\n\
911 This is 1, unless narrowing (a buffer restriction) is in effect.")
915 XSETFASTINT (temp
, BEGV
);
919 DEFUN ("point-min-marker", Fpoint_min_marker
, Spoint_min_marker
, 0, 0, 0,
920 "Return a marker to the minimum permissible value of point in this buffer.\n\
921 This is the beginning, unless narrowing (a buffer restriction) is in effect.")
924 return buildmark (BEGV
, BEGV_BYTE
);
927 DEFUN ("point-max", Fpoint_max
, Spoint_max
, 0, 0, 0,
928 "Return the maximum permissible value of point in the current buffer.\n\
929 This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\
930 is in effect, in which case it is less.")
934 XSETFASTINT (temp
, ZV
);
938 DEFUN ("point-max-marker", Fpoint_max_marker
, Spoint_max_marker
, 0, 0, 0,
939 "Return a marker to the maximum permissible value of point in this buffer.\n\
940 This is (1+ (buffer-size)), unless narrowing (a buffer restriction)\n\
941 is in effect, in which case it is less.")
944 return buildmark (ZV
, ZV_BYTE
);
947 DEFUN ("gap-position", Fgap_position
, Sgap_position
, 0, 0, 0,
948 "Return the position of the gap, in the current buffer.\n\
949 See also `gap-size'.")
953 XSETFASTINT (temp
, GPT
);
957 DEFUN ("gap-size", Fgap_size
, Sgap_size
, 0, 0, 0,
958 "Return the size of the current buffer's gap.\n\
959 See also `gap-position'.")
963 XSETFASTINT (temp
, GAP_SIZE
);
967 DEFUN ("position-bytes", Fposition_bytes
, Sposition_bytes
, 1, 1, 0,
968 "Return the byte position for character position POSITION.\n\
969 If POSITION is out of range, the value is nil.")
971 Lisp_Object position
;
973 CHECK_NUMBER_COERCE_MARKER (position
, 1);
974 if (XINT (position
) < BEG
|| XINT (position
) > Z
)
976 return make_number (CHAR_TO_BYTE (XINT (position
)));
979 DEFUN ("byte-to-position", Fbyte_to_position
, Sbyte_to_position
, 1, 1, 0,
980 "Return the character position for byte position BYTEPOS.\n\
981 If BYTEPOS is out of range, the value is nil.")
985 CHECK_NUMBER (bytepos
, 1);
986 if (XINT (bytepos
) < BEG_BYTE
|| XINT (bytepos
) > Z_BYTE
)
988 return make_number (BYTE_TO_CHAR (XINT (bytepos
)));
991 DEFUN ("following-char", Ffollowing_char
, Sfollowing_char
, 0, 0, 0,
992 "Return the character following point, as a number.\n\
993 At the end of the buffer or accessible region, return 0.")
998 XSETFASTINT (temp
, 0);
1000 XSETFASTINT (temp
, FETCH_CHAR (PT_BYTE
));
1004 DEFUN ("preceding-char", Fprevious_char
, Sprevious_char
, 0, 0, 0,
1005 "Return the character preceding point, as a number.\n\
1006 At the beginning of the buffer or accessible region, return 0.")
1011 XSETFASTINT (temp
, 0);
1012 else if (!NILP (current_buffer
->enable_multibyte_characters
))
1016 XSETFASTINT (temp
, FETCH_CHAR (pos
));
1019 XSETFASTINT (temp
, FETCH_BYTE (PT_BYTE
- 1));
1023 DEFUN ("bobp", Fbobp
, Sbobp
, 0, 0, 0,
1024 "Return t if point is at the beginning of the buffer.\n\
1025 If the buffer is narrowed, this means the beginning of the narrowed part.")
1033 DEFUN ("eobp", Feobp
, Seobp
, 0, 0, 0,
1034 "Return t if point is at the end of the buffer.\n\
1035 If the buffer is narrowed, this means the end of the narrowed part.")
1043 DEFUN ("bolp", Fbolp
, Sbolp
, 0, 0, 0,
1044 "Return t if point is at the beginning of a line.")
1047 if (PT
== BEGV
|| FETCH_BYTE (PT_BYTE
- 1) == '\n')
1052 DEFUN ("eolp", Feolp
, Seolp
, 0, 0, 0,
1053 "Return t if point is at the end of a line.\n\
1054 `End of a line' includes point being at the end of the buffer.")
1057 if (PT
== ZV
|| FETCH_BYTE (PT_BYTE
) == '\n')
1062 DEFUN ("char-after", Fchar_after
, Schar_after
, 0, 1, 0,
1063 "Return character in current buffer at position POS.\n\
1064 POS is an integer or a marker.\n\
1065 If POS is out of range, the value is nil.")
1069 register int pos_byte
;
1074 XSETFASTINT (pos
, PT
);
1079 pos_byte
= marker_byte_position (pos
);
1080 if (pos_byte
< BEGV_BYTE
|| pos_byte
>= ZV_BYTE
)
1085 CHECK_NUMBER_COERCE_MARKER (pos
, 0);
1086 if (XINT (pos
) < BEGV
|| XINT (pos
) >= ZV
)
1089 pos_byte
= CHAR_TO_BYTE (XINT (pos
));
1092 return make_number (FETCH_CHAR (pos_byte
));
1095 DEFUN ("char-before", Fchar_before
, Schar_before
, 0, 1, 0,
1096 "Return character in current buffer preceding position POS.\n\
1097 POS is an integer or a marker.\n\
1098 If POS is out of range, the value is nil.")
1102 register Lisp_Object val
;
1103 register int pos_byte
;
1108 XSETFASTINT (pos
, PT
);
1113 pos_byte
= marker_byte_position (pos
);
1115 if (pos_byte
<= BEGV_BYTE
|| pos_byte
> ZV_BYTE
)
1120 CHECK_NUMBER_COERCE_MARKER (pos
, 0);
1122 if (XINT (pos
) <= BEGV
|| XINT (pos
) > ZV
)
1125 pos_byte
= CHAR_TO_BYTE (XINT (pos
));
1128 if (!NILP (current_buffer
->enable_multibyte_characters
))
1131 XSETFASTINT (val
, FETCH_CHAR (pos_byte
));
1136 XSETFASTINT (val
, FETCH_BYTE (pos_byte
));
1141 DEFUN ("user-login-name", Fuser_login_name
, Suser_login_name
, 0, 1, 0,
1142 "Return the name under which the user logged in, as a string.\n\
1143 This is based on the effective uid, not the real uid.\n\
1144 Also, if the environment variable LOGNAME or USER is set,\n\
1145 that determines the value of this function.\n\n\
1146 If optional argument UID is an integer, return the login name of the user\n\
1147 with that uid, or nil if there is no such user.")
1153 /* Set up the user name info if we didn't do it before.
1154 (That can happen if Emacs is dumpable
1155 but you decide to run `temacs -l loadup' and not dump. */
1156 if (INTEGERP (Vuser_login_name
))
1160 return Vuser_login_name
;
1162 CHECK_NUMBER (uid
, 0);
1163 pw
= (struct passwd
*) getpwuid (XINT (uid
));
1164 return (pw
? build_string (pw
->pw_name
) : Qnil
);
1167 DEFUN ("user-real-login-name", Fuser_real_login_name
, Suser_real_login_name
,
1169 "Return the name of the user's real uid, as a string.\n\
1170 This ignores the environment variables LOGNAME and USER, so it differs from\n\
1171 `user-login-name' when running under `su'.")
1174 /* Set up the user name info if we didn't do it before.
1175 (That can happen if Emacs is dumpable
1176 but you decide to run `temacs -l loadup' and not dump. */
1177 if (INTEGERP (Vuser_login_name
))
1179 return Vuser_real_login_name
;
1182 DEFUN ("user-uid", Fuser_uid
, Suser_uid
, 0, 0, 0,
1183 "Return the effective uid of Emacs, as an integer.")
1186 return make_number (geteuid ());
1189 DEFUN ("user-real-uid", Fuser_real_uid
, Suser_real_uid
, 0, 0, 0,
1190 "Return the real uid of Emacs, as an integer.")
1193 return make_number (getuid ());
1196 DEFUN ("user-full-name", Fuser_full_name
, Suser_full_name
, 0, 1, 0,
1197 "Return the full name of the user logged in, as a string.\n\
1198 If the full name corresponding to Emacs's userid is not known,\n\
1199 return \"unknown\".\n\
1201 If optional argument UID is an integer, return the full name of the user\n\
1202 with that uid, or nil if there is no such user.\n\
1203 If UID is a string, return the full name of the user with that login\n\
1204 name, or nil if there is no such user.")
1209 register unsigned char *p
, *q
;
1213 return Vuser_full_name
;
1214 else if (NUMBERP (uid
))
1215 pw
= (struct passwd
*) getpwuid (XINT (uid
));
1216 else if (STRINGP (uid
))
1217 pw
= (struct passwd
*) getpwnam (XSTRING (uid
)->data
);
1219 error ("Invalid UID specification");
1224 p
= (unsigned char *) USER_FULL_NAME
;
1225 /* Chop off everything after the first comma. */
1226 q
= (unsigned char *) index (p
, ',');
1227 full
= make_string (p
, q
? q
- p
: strlen (p
));
1229 #ifdef AMPERSAND_FULL_NAME
1230 p
= XSTRING (full
)->data
;
1231 q
= (unsigned char *) index (p
, '&');
1232 /* Substitute the login name for the &, upcasing the first character. */
1235 register unsigned char *r
;
1238 login
= Fuser_login_name (make_number (pw
->pw_uid
));
1239 r
= (unsigned char *) alloca (strlen (p
) + XSTRING (login
)->size
+ 1);
1240 bcopy (p
, r
, q
- p
);
1242 strcat (r
, XSTRING (login
)->data
);
1243 r
[q
- p
] = UPCASE (r
[q
- p
]);
1245 full
= build_string (r
);
1247 #endif /* AMPERSAND_FULL_NAME */
1252 DEFUN ("system-name", Fsystem_name
, Ssystem_name
, 0, 0, 0,
1253 "Return the name of the machine you are running on, as a string.")
1256 return Vsystem_name
;
1259 /* For the benefit of callers who don't want to include lisp.h */
1264 if (STRINGP (Vsystem_name
))
1265 return (char *) XSTRING (Vsystem_name
)->data
;
1270 DEFUN ("emacs-pid", Femacs_pid
, Semacs_pid
, 0, 0, 0,
1271 "Return the process ID of Emacs, as an integer.")
1274 return make_number (getpid ());
1277 DEFUN ("current-time", Fcurrent_time
, Scurrent_time
, 0, 0, 0,
1278 "Return the current time, as the number of seconds since 1970-01-01 00:00:00.\n\
1279 The time is returned as a list of three integers. The first has the\n\
1280 most significant 16 bits of the seconds, while the second has the\n\
1281 least significant 16 bits. The third integer gives the microsecond\n\
1284 The microsecond count is zero on systems that do not provide\n\
1285 resolution finer than a second.")
1289 Lisp_Object result
[3];
1292 XSETINT (result
[0], (EMACS_SECS (t
) >> 16) & 0xffff);
1293 XSETINT (result
[1], (EMACS_SECS (t
) >> 0) & 0xffff);
1294 XSETINT (result
[2], EMACS_USECS (t
));
1296 return Flist (3, result
);
1301 lisp_time_argument (specified_time
, result
, usec
)
1302 Lisp_Object specified_time
;
1306 if (NILP (specified_time
))
1313 *usec
= EMACS_USECS (t
);
1314 *result
= EMACS_SECS (t
);
1318 return time (result
) != -1;
1322 Lisp_Object high
, low
;
1323 high
= Fcar (specified_time
);
1324 CHECK_NUMBER (high
, 0);
1325 low
= Fcdr (specified_time
);
1330 Lisp_Object usec_l
= Fcdr (low
);
1332 usec_l
= Fcar (usec_l
);
1337 CHECK_NUMBER (usec_l
, 0);
1338 *usec
= XINT (usec_l
);
1345 CHECK_NUMBER (low
, 0);
1346 *result
= (XINT (high
) << 16) + (XINT (low
) & 0xffff);
1347 return *result
>> 16 == XINT (high
);
1351 DEFUN ("float-time", Ffloat_time
, Sfloat_time
, 0, 1, 0,
1352 "Return the current time, as a float number of seconds since the epoch.\n\
1353 If an argument is given, it specifies a time to convert to float\n\
1354 instead of the current time. The argument should have the forms:\n\
1355 (HIGH . LOW) or (HIGH LOW USEC) or (HIGH LOW . USEC).\n\
1356 Thus, you can use times obtained from `current-time'\n\
1357 and from `file-attributes'.")
1359 Lisp_Object specified_time
;
1364 if (! lisp_time_argument (specified_time
, &sec
, &usec
))
1365 error ("Invalid time specification");
1367 return make_float (sec
+ usec
* 0.0000001);
1370 /* Write information into buffer S of size MAXSIZE, according to the
1371 FORMAT of length FORMAT_LEN, using time information taken from *TP.
1372 Default to Universal Time if UT is nonzero, local time otherwise.
1373 Return the number of bytes written, not including the terminating
1374 '\0'. If S is NULL, nothing will be written anywhere; so to
1375 determine how many bytes would be written, use NULL for S and
1376 ((size_t) -1) for MAXSIZE.
1378 This function behaves like emacs_strftimeu, except it allows null
1381 emacs_memftimeu (s
, maxsize
, format
, format_len
, tp
, ut
)
1386 const struct tm
*tp
;
1391 /* Loop through all the null-terminated strings in the format
1392 argument. Normally there's just one null-terminated string, but
1393 there can be arbitrarily many, concatenated together, if the
1394 format contains '\0' bytes. emacs_strftimeu stops at the first
1395 '\0' byte so we must invoke it separately for each such string. */
1404 result
= emacs_strftimeu (s
, maxsize
, format
, tp
, ut
);
1408 if (result
== 0 && s
[0] != '\0')
1413 maxsize
-= result
+ 1;
1415 len
= strlen (format
);
1416 if (len
== format_len
)
1420 format_len
-= len
+ 1;
1425 DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0,
1426 "Use FORMAT-STRING to format the time TIME, or now if omitted.\n\
1427 TIME is specified as (HIGH LOW . IGNORED) or (HIGH . LOW), as returned by\n\
1428 `current-time' or `file-attributes'.\n\
1429 The third, optional, argument UNIVERSAL, if non-nil, means describe TIME\n\
1430 as Universal Time; nil means describe TIME in the local time zone.\n\
1431 The value is a copy of FORMAT-STRING, but with certain constructs replaced\n\
1432 by text that describes the specified date and time in TIME:\n\
1434 %Y is the year, %y within the century, %C the century.\n\
1435 %G is the year corresponding to the ISO week, %g within the century.\n\
1436 %m is the numeric month.\n\
1437 %b and %h are the locale's abbreviated month name, %B the full name.\n\
1438 %d is the day of the month, zero-padded, %e is blank-padded.\n\
1439 %u is the numeric day of week from 1 (Monday) to 7, %w from 0 (Sunday) to 6.\n\
1440 %a is the locale's abbreviated name of the day of week, %A the full name.\n\
1441 %U is the week number starting on Sunday, %W starting on Monday,\n\
1442 %V according to ISO 8601.\n\
1443 %j is the day of the year.\n\
1445 %H is the hour on a 24-hour clock, %I is on a 12-hour clock, %k is like %H\n\
1446 only blank-padded, %l is like %I blank-padded.\n\
1447 %p is the locale's equivalent of either AM or PM.\n\
1448 %M is the minute.\n\
1449 %S is the second.\n\
1450 %Z is the time zone name, %z is the numeric form.\n\
1451 %s is the number of seconds since 1970-01-01 00:00:00 +0000.\n\
1453 %c is the locale's date and time format.\n\
1454 %x is the locale's \"preferred\" date format.\n\
1455 %D is like \"%m/%d/%y\".\n\
1457 %R is like \"%H:%M\", %T is like \"%H:%M:%S\", %r is like \"%I:%M:%S %p\".\n\
1458 %X is the locale's \"preferred\" time format.\n\
1460 Finally, %n is a newline, %t is a tab, %% is a literal %.\n\
1462 Certain flags and modifiers are available with some format controls.\n\
1463 The flags are `_' and `-'. For certain characters X, %_X is like %X,\n\
1464 but padded with blanks; %-X is like %X, but without padding.\n\
1465 %NX (where N stands for an integer) is like %X,\n\
1466 but takes up at least N (a number) positions.\n\
1467 The modifiers are `E' and `O'. For certain characters X,\n\
1468 %EX is a locale's alternative version of %X;\n\
1469 %OX is like %X, but uses the locale's number symbols.\n\
1471 For example, to produce full ISO 8601 format, use \"%Y-%m-%dT%T%z\".")
1472 (format_string, time, universal)
1475 DEFUN ("format-time-string", Fformat_time_string
, Sformat_time_string
, 1, 3, 0,
1476 0 /* See immediately above */)
1477 (format_string
, time
, universal
)
1478 Lisp_Object format_string
, time
, universal
;
1483 int ut
= ! NILP (universal
);
1485 CHECK_STRING (format_string
, 1);
1487 if (! lisp_time_argument (time
, &value
, NULL
))
1488 error ("Invalid time specification");
1490 format_string
= code_convert_string_norecord (format_string
,
1491 Vlocale_coding_system
, 1);
1493 /* This is probably enough. */
1494 size
= STRING_BYTES (XSTRING (format_string
)) * 6 + 50;
1496 tm
= ut
? gmtime (&value
) : localtime (&value
);
1498 error ("Specified time is not representable");
1500 synchronize_system_time_locale ();
1504 char *buf
= (char *) alloca (size
+ 1);
1508 result
= emacs_memftimeu (buf
, size
, XSTRING (format_string
)->data
,
1509 STRING_BYTES (XSTRING (format_string
)),
1511 if ((result
> 0 && result
< size
) || (result
== 0 && buf
[0] == '\0'))
1512 return code_convert_string_norecord (make_string (buf
, result
),
1513 Vlocale_coding_system
, 0);
1515 /* If buffer was too small, make it bigger and try again. */
1516 result
= emacs_memftimeu (NULL
, (size_t) -1,
1517 XSTRING (format_string
)->data
,
1518 STRING_BYTES (XSTRING (format_string
)),
1524 DEFUN ("decode-time", Fdecode_time
, Sdecode_time
, 0, 1, 0,
1525 "Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE).\n\
1526 The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED)\n\
1527 or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil'\n\
1528 to use the current time. The list has the following nine members:\n\
1529 SEC is an integer between 0 and 60; SEC is 60 for a leap second, which\n\
1530 only some operating systems support. MINUTE is an integer between 0 and 59.\n\
1531 HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31.\n\
1532 MONTH is an integer between 1 and 12. YEAR is an integer indicating the\n\
1533 four-digit year. DOW is the day of week, an integer between 0 and 6, where\n\
1534 0 is Sunday. DST is t if daylight savings time is effect, otherwise nil.\n\
1535 ZONE is an integer indicating the number of seconds east of Greenwich.\n\
1536 \(Note that Common Lisp has different meanings for DOW and ZONE.)")
1538 Lisp_Object specified_time
;
1542 struct tm
*decoded_time
;
1543 Lisp_Object list_args
[9];
1545 if (! lisp_time_argument (specified_time
, &time_spec
, NULL
))
1546 error ("Invalid time specification");
1548 decoded_time
= localtime (&time_spec
);
1550 error ("Specified time is not representable");
1551 XSETFASTINT (list_args
[0], decoded_time
->tm_sec
);
1552 XSETFASTINT (list_args
[1], decoded_time
->tm_min
);
1553 XSETFASTINT (list_args
[2], decoded_time
->tm_hour
);
1554 XSETFASTINT (list_args
[3], decoded_time
->tm_mday
);
1555 XSETFASTINT (list_args
[4], decoded_time
->tm_mon
+ 1);
1556 XSETINT (list_args
[5], decoded_time
->tm_year
+ 1900);
1557 XSETFASTINT (list_args
[6], decoded_time
->tm_wday
);
1558 list_args
[7] = (decoded_time
->tm_isdst
)? Qt
: Qnil
;
1560 /* Make a copy, in case gmtime modifies the struct. */
1561 save_tm
= *decoded_time
;
1562 decoded_time
= gmtime (&time_spec
);
1563 if (decoded_time
== 0)
1564 list_args
[8] = Qnil
;
1566 XSETINT (list_args
[8], tm_diff (&save_tm
, decoded_time
));
1567 return Flist (9, list_args
);
1570 DEFUN ("encode-time", Fencode_time
, Sencode_time
, 6, MANY
, 0,
1571 "Convert SECOND, MINUTE, HOUR, DAY, MONTH, YEAR and ZONE to internal time.\n\
1572 This is the reverse operation of `decode-time', which see.\n\
1573 ZONE defaults to the current time zone rule. This can\n\
1574 be a string or t (as from `set-time-zone-rule'), or it can be a list\n\
1575 \(as from `current-time-zone') or an integer (as from `decode-time')\n\
1576 applied without consideration for daylight savings time.\n\
1578 You can pass more than 7 arguments; then the first six arguments\n\
1579 are used as SECOND through YEAR, and the *last* argument is used as ZONE.\n\
1580 The intervening arguments are ignored.\n\
1581 This feature lets (apply 'encode-time (decode-time ...)) work.\n\
1583 Out-of-range values for SEC, MINUTE, HOUR, DAY, or MONTH are allowed;\n\
1584 for example, a DAY of 0 means the day preceding the given month.\n\
1585 Year numbers less than 100 are treated just like other year numbers.\n\
1586 If you want them to stand for years in this century, you must do that yourself.")
1589 register Lisp_Object
*args
;
1593 Lisp_Object zone
= (nargs
> 6 ? args
[nargs
- 1] : Qnil
);
1595 CHECK_NUMBER (args
[0], 0); /* second */
1596 CHECK_NUMBER (args
[1], 1); /* minute */
1597 CHECK_NUMBER (args
[2], 2); /* hour */
1598 CHECK_NUMBER (args
[3], 3); /* day */
1599 CHECK_NUMBER (args
[4], 4); /* month */
1600 CHECK_NUMBER (args
[5], 5); /* year */
1602 tm
.tm_sec
= XINT (args
[0]);
1603 tm
.tm_min
= XINT (args
[1]);
1604 tm
.tm_hour
= XINT (args
[2]);
1605 tm
.tm_mday
= XINT (args
[3]);
1606 tm
.tm_mon
= XINT (args
[4]) - 1;
1607 tm
.tm_year
= XINT (args
[5]) - 1900;
1613 time
= mktime (&tm
);
1618 char **oldenv
= environ
, **newenv
;
1622 else if (STRINGP (zone
))
1623 tzstring
= (char *) XSTRING (zone
)->data
;
1624 else if (INTEGERP (zone
))
1626 int abszone
= abs (XINT (zone
));
1627 sprintf (tzbuf
, "XXX%s%d:%02d:%02d", "-" + (XINT (zone
) < 0),
1628 abszone
/ (60*60), (abszone
/60) % 60, abszone
% 60);
1632 error ("Invalid time zone specification");
1634 /* Set TZ before calling mktime; merely adjusting mktime's returned
1635 value doesn't suffice, since that would mishandle leap seconds. */
1636 set_time_zone_rule (tzstring
);
1638 time
= mktime (&tm
);
1640 /* Restore TZ to previous value. */
1644 #ifdef LOCALTIME_CACHE
1649 if (time
== (time_t) -1)
1650 error ("Specified time is not representable");
1652 return make_time (time
);
1655 DEFUN ("current-time-string", Fcurrent_time_string
, Scurrent_time_string
, 0, 1, 0,
1656 "Return the current time, as a human-readable string.\n\
1657 Programs can use this function to decode a time,\n\
1658 since the number of columns in each field is fixed.\n\
1659 The format is `Sun Sep 16 01:03:52 1973'.\n\
1660 However, see also the functions `decode-time' and `format-time-string'\n\
1661 which provide a much more powerful and general facility.\n\
1663 If an argument is given, it specifies a time to format\n\
1664 instead of the current time. The argument should have the form:\n\
1667 (HIGH LOW . IGNORED).\n\
1668 Thus, you can use times obtained from `current-time'\n\
1669 and from `file-attributes'.")
1671 Lisp_Object specified_time
;
1677 if (! lisp_time_argument (specified_time
, &value
, NULL
))
1679 tem
= (char *) ctime (&value
);
1681 strncpy (buf
, tem
, 24);
1684 return build_string (buf
);
1687 #define TM_YEAR_BASE 1900
1689 /* Yield A - B, measured in seconds.
1690 This function is copied from the GNU C Library. */
1695 /* Compute intervening leap days correctly even if year is negative.
1696 Take care to avoid int overflow in leap day calculations,
1697 but it's OK to assume that A and B are close to each other. */
1698 int a4
= (a
->tm_year
>> 2) + (TM_YEAR_BASE
>> 2) - ! (a
->tm_year
& 3);
1699 int b4
= (b
->tm_year
>> 2) + (TM_YEAR_BASE
>> 2) - ! (b
->tm_year
& 3);
1700 int a100
= a4
/ 25 - (a4
% 25 < 0);
1701 int b100
= b4
/ 25 - (b4
% 25 < 0);
1702 int a400
= a100
>> 2;
1703 int b400
= b100
>> 2;
1704 int intervening_leap_days
= (a4
- b4
) - (a100
- b100
) + (a400
- b400
);
1705 int years
= a
->tm_year
- b
->tm_year
;
1706 int days
= (365 * years
+ intervening_leap_days
1707 + (a
->tm_yday
- b
->tm_yday
));
1708 return (60 * (60 * (24 * days
+ (a
->tm_hour
- b
->tm_hour
))
1709 + (a
->tm_min
- b
->tm_min
))
1710 + (a
->tm_sec
- b
->tm_sec
));
1713 DEFUN ("current-time-zone", Fcurrent_time_zone
, Scurrent_time_zone
, 0, 1, 0,
1714 "Return the offset and name for the local time zone.\n\
1715 This returns a list of the form (OFFSET NAME).\n\
1716 OFFSET is an integer number of seconds ahead of UTC (east of Greenwich).\n\
1717 A negative value means west of Greenwich.\n\
1718 NAME is a string giving the name of the time zone.\n\
1719 If an argument is given, it specifies when the time zone offset is determined\n\
1720 instead of using the current time. The argument should have the form:\n\
1723 (HIGH LOW . IGNORED).\n\
1724 Thus, you can use times obtained from `current-time'\n\
1725 and from `file-attributes'.\n\
1727 Some operating systems cannot provide all this information to Emacs;\n\
1728 in this case, `current-time-zone' returns a list containing nil for\n\
1729 the data it can't find.")
1731 Lisp_Object specified_time
;
1737 if (lisp_time_argument (specified_time
, &value
, NULL
)
1738 && (t
= gmtime (&value
)) != 0
1739 && (gmt
= *t
, t
= localtime (&value
)) != 0)
1741 int offset
= tm_diff (t
, &gmt
);
1746 s
= (char *)t
->tm_zone
;
1747 #else /* not HAVE_TM_ZONE */
1749 if (t
->tm_isdst
== 0 || t
->tm_isdst
== 1)
1750 s
= tzname
[t
->tm_isdst
];
1752 #endif /* not HAVE_TM_ZONE */
1755 /* No local time zone name is available; use "+-NNNN" instead. */
1756 int am
= (offset
< 0 ? -offset
: offset
) / 60;
1757 sprintf (buf
, "%c%02d%02d", (offset
< 0 ? '-' : '+'), am
/60, am
%60);
1760 return Fcons (make_number (offset
), Fcons (build_string (s
), Qnil
));
1763 return Fmake_list (make_number (2), Qnil
);
1766 /* This holds the value of `environ' produced by the previous
1767 call to Fset_time_zone_rule, or 0 if Fset_time_zone_rule
1768 has never been called. */
1769 static char **environbuf
;
1771 DEFUN ("set-time-zone-rule", Fset_time_zone_rule
, Sset_time_zone_rule
, 1, 1, 0,
1772 "Set the local time zone using TZ, a string specifying a time zone rule.\n\
1773 If TZ is nil, use implementation-defined default time zone information.\n\
1774 If TZ is t, use Universal Time.")
1782 else if (EQ (tz
, Qt
))
1786 CHECK_STRING (tz
, 0);
1787 tzstring
= (char *) XSTRING (tz
)->data
;
1790 set_time_zone_rule (tzstring
);
1793 environbuf
= environ
;
1798 #ifdef LOCALTIME_CACHE
1800 /* These two values are known to load tz files in buggy implementations,
1801 i.e. Solaris 1 executables running under either Solaris 1 or Solaris 2.
1802 Their values shouldn't matter in non-buggy implementations.
1803 We don't use string literals for these strings,
1804 since if a string in the environment is in readonly
1805 storage, it runs afoul of bugs in SVR4 and Solaris 2.3.
1806 See Sun bugs 1113095 and 1114114, ``Timezone routines
1807 improperly modify environment''. */
1809 static char set_time_zone_rule_tz1
[] = "TZ=GMT+0";
1810 static char set_time_zone_rule_tz2
[] = "TZ=GMT+1";
1814 /* Set the local time zone rule to TZSTRING.
1815 This allocates memory into `environ', which it is the caller's
1816 responsibility to free. */
1819 set_time_zone_rule (tzstring
)
1823 char **from
, **to
, **newenv
;
1825 /* Make the ENVIRON vector longer with room for TZSTRING. */
1826 for (from
= environ
; *from
; from
++)
1828 envptrs
= from
- environ
+ 2;
1829 newenv
= to
= (char **) xmalloc (envptrs
* sizeof (char *)
1830 + (tzstring
? strlen (tzstring
) + 4 : 0));
1832 /* Add TZSTRING to the end of environ, as a value for TZ. */
1835 char *t
= (char *) (to
+ envptrs
);
1837 strcat (t
, tzstring
);
1841 /* Copy the old environ vector elements into NEWENV,
1842 but don't copy the TZ variable.
1843 So we have only one definition of TZ, which came from TZSTRING. */
1844 for (from
= environ
; *from
; from
++)
1845 if (strncmp (*from
, "TZ=", 3) != 0)
1851 /* If we do have a TZSTRING, NEWENV points to the vector slot where
1852 the TZ variable is stored. If we do not have a TZSTRING,
1853 TO points to the vector slot which has the terminating null. */
1855 #ifdef LOCALTIME_CACHE
1857 /* In SunOS 4.1.3_U1 and 4.1.4, if TZ has a value like
1858 "US/Pacific" that loads a tz file, then changes to a value like
1859 "XXX0" that does not load a tz file, and then changes back to
1860 its original value, the last change is (incorrectly) ignored.
1861 Also, if TZ changes twice in succession to values that do
1862 not load a tz file, tzset can dump core (see Sun bug#1225179).
1863 The following code works around these bugs. */
1867 /* Temporarily set TZ to a value that loads a tz file
1868 and that differs from tzstring. */
1870 *newenv
= (strcmp (tzstring
, set_time_zone_rule_tz1
+ 3) == 0
1871 ? set_time_zone_rule_tz2
: set_time_zone_rule_tz1
);
1877 /* The implied tzstring is unknown, so temporarily set TZ to
1878 two different values that each load a tz file. */
1879 *to
= set_time_zone_rule_tz1
;
1882 *to
= set_time_zone_rule_tz2
;
1887 /* Now TZ has the desired value, and tzset can be invoked safely. */
1894 /* Insert NARGS Lisp objects in the array ARGS by calling INSERT_FUNC
1895 (if a type of object is Lisp_Int) or INSERT_FROM_STRING_FUNC (if a
1896 type of object is Lisp_String). INHERIT is passed to
1897 INSERT_FROM_STRING_FUNC as the last argument. */
1900 general_insert_function (insert_func
, insert_from_string_func
,
1901 inherit
, nargs
, args
)
1902 void (*insert_func
) P_ ((unsigned char *, int));
1903 void (*insert_from_string_func
) P_ ((Lisp_Object
, int, int, int, int, int));
1905 register Lisp_Object
*args
;
1907 register int argnum
;
1908 register Lisp_Object val
;
1910 for (argnum
= 0; argnum
< nargs
; argnum
++)
1916 unsigned char str
[MAX_MULTIBYTE_LENGTH
];
1919 if (!NILP (current_buffer
->enable_multibyte_characters
))
1920 len
= CHAR_STRING (XFASTINT (val
), str
);
1923 str
[0] = (SINGLE_BYTE_CHAR_P (XINT (val
))
1925 : multibyte_char_to_unibyte (XINT (val
), Qnil
));
1928 (*insert_func
) (str
, len
);
1930 else if (STRINGP (val
))
1932 (*insert_from_string_func
) (val
, 0, 0,
1933 XSTRING (val
)->size
,
1934 STRING_BYTES (XSTRING (val
)),
1939 val
= wrong_type_argument (Qchar_or_string_p
, val
);
1953 /* Callers passing one argument to Finsert need not gcpro the
1954 argument "array", since the only element of the array will
1955 not be used after calling insert or insert_from_string, so
1956 we don't care if it gets trashed. */
1958 DEFUN ("insert", Finsert
, Sinsert
, 0, MANY
, 0,
1959 "Insert the arguments, either strings or characters, at point.\n\
1960 Point and before-insertion markers move forward to end up\n\
1961 after the inserted text.\n\
1962 Any other markers at the point of insertion remain before the text.\n\
1964 If the current buffer is multibyte, unibyte strings are converted\n\
1965 to multibyte for insertion (see `unibyte-char-to-multibyte').\n\
1966 If the current buffer is unibyte, multibyte strings are converted\n\
1967 to unibyte for insertion.")
1970 register Lisp_Object
*args
;
1972 general_insert_function (insert
, insert_from_string
, 0, nargs
, args
);
1976 DEFUN ("insert-and-inherit", Finsert_and_inherit
, Sinsert_and_inherit
,
1978 "Insert the arguments at point, inheriting properties from adjoining text.\n\
1979 Point and before-insertion markers move forward to end up\n\
1980 after the inserted text.\n\
1981 Any other markers at the point of insertion remain before the text.\n\
1983 If the current buffer is multibyte, unibyte strings are converted\n\
1984 to multibyte for insertion (see `unibyte-char-to-multibyte').\n\
1985 If the current buffer is unibyte, multibyte strings are converted\n\
1986 to unibyte for insertion.")
1989 register Lisp_Object
*args
;
1991 general_insert_function (insert_and_inherit
, insert_from_string
, 1,
1996 DEFUN ("insert-before-markers", Finsert_before_markers
, Sinsert_before_markers
, 0, MANY
, 0,
1997 "Insert strings or characters at point, relocating markers after the text.\n\
1998 Point and markers move forward to end up after the inserted text.\n\
2000 If the current buffer is multibyte, unibyte strings are converted\n\
2001 to multibyte for insertion (see `unibyte-char-to-multibyte').\n\
2002 If the current buffer is unibyte, multibyte strings are converted\n\
2003 to unibyte for insertion.")
2006 register Lisp_Object
*args
;
2008 general_insert_function (insert_before_markers
,
2009 insert_from_string_before_markers
, 0,
2014 DEFUN ("insert-before-markers-and-inherit", Finsert_and_inherit_before_markers
,
2015 Sinsert_and_inherit_before_markers
, 0, MANY
, 0,
2016 "Insert text at point, relocating markers and inheriting properties.\n\
2017 Point and markers move forward to end up after the inserted text.\n\
2019 If the current buffer is multibyte, unibyte strings are converted\n\
2020 to multibyte for insertion (see `unibyte-char-to-multibyte').\n\
2021 If the current buffer is unibyte, multibyte strings are converted\n\
2022 to unibyte for insertion.")
2025 register Lisp_Object
*args
;
2027 general_insert_function (insert_before_markers_and_inherit
,
2028 insert_from_string_before_markers
, 1,
2033 DEFUN ("insert-char", Finsert_char
, Sinsert_char
, 2, 3, 0,
2034 "Insert COUNT (second arg) copies of CHARACTER (first arg).\n\
2035 Both arguments are required.\n\
2036 Point, and before-insertion markers, are relocated as in the function `insert'.\n\
2037 The optional third arg INHERIT, if non-nil, says to inherit text properties\n\
2038 from adjoining text, if those properties are sticky.")
2039 (character
, count
, inherit
)
2040 Lisp_Object character
, count
, inherit
;
2042 register unsigned char *string
;
2043 register int strlen
;
2046 unsigned char str
[MAX_MULTIBYTE_LENGTH
];
2048 CHECK_NUMBER (character
, 0);
2049 CHECK_NUMBER (count
, 1);
2051 if (!NILP (current_buffer
->enable_multibyte_characters
))
2052 len
= CHAR_STRING (XFASTINT (character
), str
);
2054 str
[0] = XFASTINT (character
), len
= 1;
2055 n
= XINT (count
) * len
;
2058 strlen
= min (n
, 256 * len
);
2059 string
= (unsigned char *) alloca (strlen
);
2060 for (i
= 0; i
< strlen
; i
++)
2061 string
[i
] = str
[i
% len
];
2065 if (!NILP (inherit
))
2066 insert_and_inherit (string
, strlen
);
2068 insert (string
, strlen
);
2073 if (!NILP (inherit
))
2074 insert_and_inherit (string
, n
);
2082 /* Making strings from buffer contents. */
2084 /* Return a Lisp_String containing the text of the current buffer from
2085 START to END. If text properties are in use and the current buffer
2086 has properties in the range specified, the resulting string will also
2087 have them, if PROPS is nonzero.
2089 We don't want to use plain old make_string here, because it calls
2090 make_uninit_string, which can cause the buffer arena to be
2091 compacted. make_string has no way of knowing that the data has
2092 been moved, and thus copies the wrong data into the string. This
2093 doesn't effect most of the other users of make_string, so it should
2094 be left as is. But we should use this function when conjuring
2095 buffer substrings. */
2098 make_buffer_string (start
, end
, props
)
2102 int start_byte
= CHAR_TO_BYTE (start
);
2103 int end_byte
= CHAR_TO_BYTE (end
);
2105 return make_buffer_string_both (start
, start_byte
, end
, end_byte
, props
);
2108 /* Return a Lisp_String containing the text of the current buffer from
2109 START / START_BYTE to END / END_BYTE.
2111 If text properties are in use and the current buffer
2112 has properties in the range specified, the resulting string will also
2113 have them, if PROPS is nonzero.
2115 We don't want to use plain old make_string here, because it calls
2116 make_uninit_string, which can cause the buffer arena to be
2117 compacted. make_string has no way of knowing that the data has
2118 been moved, and thus copies the wrong data into the string. This
2119 doesn't effect most of the other users of make_string, so it should
2120 be left as is. But we should use this function when conjuring
2121 buffer substrings. */
2124 make_buffer_string_both (start
, start_byte
, end
, end_byte
, props
)
2125 int start
, start_byte
, end
, end_byte
;
2128 Lisp_Object result
, tem
, tem1
;
2130 if (start
< GPT
&& GPT
< end
)
2133 if (! NILP (current_buffer
->enable_multibyte_characters
))
2134 result
= make_uninit_multibyte_string (end
- start
, end_byte
- start_byte
);
2136 result
= make_uninit_string (end
- start
);
2137 bcopy (BYTE_POS_ADDR (start_byte
), XSTRING (result
)->data
,
2138 end_byte
- start_byte
);
2140 /* If desired, update and copy the text properties. */
2143 update_buffer_properties (start
, end
);
2145 tem
= Fnext_property_change (make_number (start
), Qnil
, make_number (end
));
2146 tem1
= Ftext_properties_at (make_number (start
), Qnil
);
2148 if (XINT (tem
) != end
|| !NILP (tem1
))
2149 copy_intervals_to_string (result
, current_buffer
, start
,
2156 /* Call Vbuffer_access_fontify_functions for the range START ... END
2157 in the current buffer, if necessary. */
2160 update_buffer_properties (start
, end
)
2163 /* If this buffer has some access functions,
2164 call them, specifying the range of the buffer being accessed. */
2165 if (!NILP (Vbuffer_access_fontify_functions
))
2167 Lisp_Object args
[3];
2170 args
[0] = Qbuffer_access_fontify_functions
;
2171 XSETINT (args
[1], start
);
2172 XSETINT (args
[2], end
);
2174 /* But don't call them if we can tell that the work
2175 has already been done. */
2176 if (!NILP (Vbuffer_access_fontified_property
))
2178 tem
= Ftext_property_any (args
[1], args
[2],
2179 Vbuffer_access_fontified_property
,
2182 Frun_hook_with_args (3, args
);
2185 Frun_hook_with_args (3, args
);
2189 DEFUN ("buffer-substring", Fbuffer_substring
, Sbuffer_substring
, 2, 2, 0,
2190 "Return the contents of part of the current buffer as a string.\n\
2191 The two arguments START and END are character positions;\n\
2192 they can be in either order.\n\
2193 The string returned is multibyte if the buffer is multibyte.")
2195 Lisp_Object start
, end
;
2199 validate_region (&start
, &end
);
2203 return make_buffer_string (b
, e
, 1);
2206 DEFUN ("buffer-substring-no-properties", Fbuffer_substring_no_properties
,
2207 Sbuffer_substring_no_properties
, 2, 2, 0,
2208 "Return the characters of part of the buffer, without the text properties.\n\
2209 The two arguments START and END are character positions;\n\
2210 they can be in either order.")
2212 Lisp_Object start
, end
;
2216 validate_region (&start
, &end
);
2220 return make_buffer_string (b
, e
, 0);
2223 DEFUN ("buffer-string", Fbuffer_string
, Sbuffer_string
, 0, 0, 0,
2224 "Return the contents of the current buffer as a string.\n\
2225 If narrowing is in effect, this function returns only the visible part\n\
2229 return make_buffer_string (BEGV
, ZV
, 1);
2232 DEFUN ("insert-buffer-substring", Finsert_buffer_substring
, Sinsert_buffer_substring
,
2234 "Insert before point a substring of the contents of buffer BUFFER.\n\
2235 BUFFER may be a buffer or a buffer name.\n\
2236 Arguments START and END are character numbers specifying the substring.\n\
2237 They default to the beginning and the end of BUFFER.")
2239 Lisp_Object buf
, start
, end
;
2241 register int b
, e
, temp
;
2242 register struct buffer
*bp
, *obuf
;
2245 buffer
= Fget_buffer (buf
);
2248 bp
= XBUFFER (buffer
);
2249 if (NILP (bp
->name
))
2250 error ("Selecting deleted buffer");
2256 CHECK_NUMBER_COERCE_MARKER (start
, 0);
2263 CHECK_NUMBER_COERCE_MARKER (end
, 1);
2268 temp
= b
, b
= e
, e
= temp
;
2270 if (!(BUF_BEGV (bp
) <= b
&& e
<= BUF_ZV (bp
)))
2271 args_out_of_range (start
, end
);
2273 obuf
= current_buffer
;
2274 set_buffer_internal_1 (bp
);
2275 update_buffer_properties (b
, e
);
2276 set_buffer_internal_1 (obuf
);
2278 insert_from_buffer (bp
, b
, e
- b
, 0);
2282 DEFUN ("compare-buffer-substrings", Fcompare_buffer_substrings
, Scompare_buffer_substrings
,
2284 "Compare two substrings of two buffers; return result as number.\n\
2285 the value is -N if first string is less after N-1 chars,\n\
2286 +N if first string is greater after N-1 chars, or 0 if strings match.\n\
2287 Each substring is represented as three arguments: BUFFER, START and END.\n\
2288 That makes six args in all, three for each substring.\n\n\
2289 The value of `case-fold-search' in the current buffer\n\
2290 determines whether case is significant or ignored.")
2291 (buffer1
, start1
, end1
, buffer2
, start2
, end2
)
2292 Lisp_Object buffer1
, start1
, end1
, buffer2
, start2
, end2
;
2294 register int begp1
, endp1
, begp2
, endp2
, temp
;
2295 register struct buffer
*bp1
, *bp2
;
2296 register Lisp_Object
*trt
2297 = (!NILP (current_buffer
->case_fold_search
)
2298 ? XCHAR_TABLE (current_buffer
->case_canon_table
)->contents
: 0);
2300 int i1
, i2
, i1_byte
, i2_byte
;
2302 /* Find the first buffer and its substring. */
2305 bp1
= current_buffer
;
2309 buf1
= Fget_buffer (buffer1
);
2312 bp1
= XBUFFER (buf1
);
2313 if (NILP (bp1
->name
))
2314 error ("Selecting deleted buffer");
2318 begp1
= BUF_BEGV (bp1
);
2321 CHECK_NUMBER_COERCE_MARKER (start1
, 1);
2322 begp1
= XINT (start1
);
2325 endp1
= BUF_ZV (bp1
);
2328 CHECK_NUMBER_COERCE_MARKER (end1
, 2);
2329 endp1
= XINT (end1
);
2333 temp
= begp1
, begp1
= endp1
, endp1
= temp
;
2335 if (!(BUF_BEGV (bp1
) <= begp1
2337 && endp1
<= BUF_ZV (bp1
)))
2338 args_out_of_range (start1
, end1
);
2340 /* Likewise for second substring. */
2343 bp2
= current_buffer
;
2347 buf2
= Fget_buffer (buffer2
);
2350 bp2
= XBUFFER (buf2
);
2351 if (NILP (bp2
->name
))
2352 error ("Selecting deleted buffer");
2356 begp2
= BUF_BEGV (bp2
);
2359 CHECK_NUMBER_COERCE_MARKER (start2
, 4);
2360 begp2
= XINT (start2
);
2363 endp2
= BUF_ZV (bp2
);
2366 CHECK_NUMBER_COERCE_MARKER (end2
, 5);
2367 endp2
= XINT (end2
);
2371 temp
= begp2
, begp2
= endp2
, endp2
= temp
;
2373 if (!(BUF_BEGV (bp2
) <= begp2
2375 && endp2
<= BUF_ZV (bp2
)))
2376 args_out_of_range (start2
, end2
);
2380 i1_byte
= buf_charpos_to_bytepos (bp1
, i1
);
2381 i2_byte
= buf_charpos_to_bytepos (bp2
, i2
);
2383 while (i1
< endp1
&& i2
< endp2
)
2385 /* When we find a mismatch, we must compare the
2386 characters, not just the bytes. */
2389 if (! NILP (bp1
->enable_multibyte_characters
))
2391 c1
= BUF_FETCH_MULTIBYTE_CHAR (bp1
, i1_byte
);
2392 BUF_INC_POS (bp1
, i1_byte
);
2397 c1
= BUF_FETCH_BYTE (bp1
, i1
);
2398 c1
= unibyte_char_to_multibyte (c1
);
2402 if (! NILP (bp2
->enable_multibyte_characters
))
2404 c2
= BUF_FETCH_MULTIBYTE_CHAR (bp2
, i2_byte
);
2405 BUF_INC_POS (bp2
, i2_byte
);
2410 c2
= BUF_FETCH_BYTE (bp2
, i2
);
2411 c2
= unibyte_char_to_multibyte (c2
);
2417 c1
= XINT (trt
[c1
]);
2418 c2
= XINT (trt
[c2
]);
2421 return make_number (- 1 - chars
);
2423 return make_number (chars
+ 1);
2428 /* The strings match as far as they go.
2429 If one is shorter, that one is less. */
2430 if (chars
< endp1
- begp1
)
2431 return make_number (chars
+ 1);
2432 else if (chars
< endp2
- begp2
)
2433 return make_number (- chars
- 1);
2435 /* Same length too => they are equal. */
2436 return make_number (0);
2440 subst_char_in_region_unwind (arg
)
2443 return current_buffer
->undo_list
= arg
;
2447 subst_char_in_region_unwind_1 (arg
)
2450 return current_buffer
->filename
= arg
;
2453 DEFUN ("subst-char-in-region", Fsubst_char_in_region
,
2454 Ssubst_char_in_region
, 4, 5, 0,
2455 "From START to END, replace FROMCHAR with TOCHAR each time it occurs.\n\
2456 If optional arg NOUNDO is non-nil, don't record this change for undo\n\
2457 and don't mark the buffer as really changed.\n\
2458 Both characters must have the same length of multi-byte form.")
2459 (start
, end
, fromchar
, tochar
, noundo
)
2460 Lisp_Object start
, end
, fromchar
, tochar
, noundo
;
2462 register int pos
, pos_byte
, stop
, i
, len
, end_byte
;
2464 unsigned char fromstr
[MAX_MULTIBYTE_LENGTH
], tostr
[MAX_MULTIBYTE_LENGTH
];
2466 int count
= specpdl_ptr
- specpdl
;
2467 #define COMBINING_NO 0
2468 #define COMBINING_BEFORE 1
2469 #define COMBINING_AFTER 2
2470 #define COMBINING_BOTH (COMBINING_BEFORE | COMBINING_AFTER)
2471 int maybe_byte_combining
= COMBINING_NO
;
2472 int last_changed
= 0;
2473 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
2475 validate_region (&start
, &end
);
2476 CHECK_NUMBER (fromchar
, 2);
2477 CHECK_NUMBER (tochar
, 3);
2481 len
= CHAR_STRING (XFASTINT (fromchar
), fromstr
);
2482 if (CHAR_STRING (XFASTINT (tochar
), tostr
) != len
)
2483 error ("Characters in subst-char-in-region have different byte-lengths");
2484 if (!ASCII_BYTE_P (*tostr
))
2486 /* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a
2487 complete multibyte character, it may be combined with the
2488 after bytes. If it is in the range 0xA0..0xFF, it may be
2489 combined with the before and after bytes. */
2490 if (!CHAR_HEAD_P (*tostr
))
2491 maybe_byte_combining
= COMBINING_BOTH
;
2492 else if (BYTES_BY_CHAR_HEAD (*tostr
) > len
)
2493 maybe_byte_combining
= COMBINING_AFTER
;
2499 fromstr
[0] = XFASTINT (fromchar
);
2500 tostr
[0] = XFASTINT (tochar
);
2504 pos_byte
= CHAR_TO_BYTE (pos
);
2505 stop
= CHAR_TO_BYTE (XINT (end
));
2508 /* If we don't want undo, turn off putting stuff on the list.
2509 That's faster than getting rid of things,
2510 and it prevents even the entry for a first change.
2511 Also inhibit locking the file. */
2514 record_unwind_protect (subst_char_in_region_unwind
,
2515 current_buffer
->undo_list
);
2516 current_buffer
->undo_list
= Qt
;
2517 /* Don't do file-locking. */
2518 record_unwind_protect (subst_char_in_region_unwind_1
,
2519 current_buffer
->filename
);
2520 current_buffer
->filename
= Qnil
;
2523 if (pos_byte
< GPT_BYTE
)
2524 stop
= min (stop
, GPT_BYTE
);
2527 int pos_byte_next
= pos_byte
;
2529 if (pos_byte
>= stop
)
2531 if (pos_byte
>= end_byte
) break;
2534 p
= BYTE_POS_ADDR (pos_byte
);
2536 INC_POS (pos_byte_next
);
2539 if (pos_byte_next
- pos_byte
== len
2540 && p
[0] == fromstr
[0]
2542 || (p
[1] == fromstr
[1]
2543 && (len
== 2 || (p
[2] == fromstr
[2]
2544 && (len
== 3 || p
[3] == fromstr
[3]))))))
2549 modify_region (current_buffer
, changed
, XINT (end
));
2551 if (! NILP (noundo
))
2553 if (MODIFF
- 1 == SAVE_MODIFF
)
2555 if (MODIFF
- 1 == current_buffer
->auto_save_modified
)
2556 current_buffer
->auto_save_modified
++;
2560 /* Take care of the case where the new character
2561 combines with neighboring bytes. */
2562 if (maybe_byte_combining
2563 && (maybe_byte_combining
== COMBINING_AFTER
2564 ? (pos_byte_next
< Z_BYTE
2565 && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next
)))
2566 : ((pos_byte_next
< Z_BYTE
2567 && ! CHAR_HEAD_P (FETCH_BYTE (pos_byte_next
)))
2568 || (pos_byte
> BEG_BYTE
2569 && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte
- 1))))))
2571 Lisp_Object tem
, string
;
2573 struct gcpro gcpro1
;
2575 tem
= current_buffer
->undo_list
;
2578 /* Make a multibyte string containing this single character. */
2579 string
= make_multibyte_string (tostr
, 1, len
);
2580 /* replace_range is less efficient, because it moves the gap,
2581 but it handles combining correctly. */
2582 replace_range (pos
, pos
+ 1, string
,
2584 pos_byte_next
= CHAR_TO_BYTE (pos
);
2585 if (pos_byte_next
> pos_byte
)
2586 /* Before combining happened. We should not increment
2587 POS. So, to cancel the later increment of POS,
2591 INC_POS (pos_byte_next
);
2593 if (! NILP (noundo
))
2594 current_buffer
->undo_list
= tem
;
2601 record_change (pos
, 1);
2602 for (i
= 0; i
< len
; i
++) *p
++ = tostr
[i
];
2604 last_changed
= pos
+ 1;
2606 pos_byte
= pos_byte_next
;
2612 signal_after_change (changed
,
2613 last_changed
- changed
, last_changed
- changed
);
2614 update_compositions (changed
, last_changed
, CHECK_ALL
);
2617 unbind_to (count
, Qnil
);
2621 DEFUN ("translate-region", Ftranslate_region
, Stranslate_region
, 3, 3, 0,
2622 "From START to END, translate characters according to TABLE.\n\
2623 TABLE is a string; the Nth character in it is the mapping\n\
2624 for the character with code N.\n\
2625 This function does not alter multibyte characters.\n\
2626 It returns the number of characters changed.")
2630 register Lisp_Object table
;
2632 register int pos_byte
, stop
; /* Limits of the region. */
2633 register unsigned char *tt
; /* Trans table. */
2634 register int nc
; /* New character. */
2635 int cnt
; /* Number of changes made. */
2636 int size
; /* Size of translate table. */
2638 int multibyte
= !NILP (current_buffer
->enable_multibyte_characters
);
2640 validate_region (&start
, &end
);
2641 CHECK_STRING (table
, 2);
2643 size
= STRING_BYTES (XSTRING (table
));
2644 tt
= XSTRING (table
)->data
;
2646 pos_byte
= CHAR_TO_BYTE (XINT (start
));
2647 stop
= CHAR_TO_BYTE (XINT (end
));
2648 modify_region (current_buffer
, XINT (start
), XINT (end
));
2652 for (; pos_byte
< stop
; )
2654 register unsigned char *p
= BYTE_POS_ADDR (pos_byte
);
2660 oc
= STRING_CHAR_AND_LENGTH (p
, stop
- pos_byte
, len
);
2663 pos_byte_next
= pos_byte
+ len
;
2664 if (oc
< size
&& len
== 1)
2669 /* Take care of the case where the new character
2670 combines with neighboring bytes. */
2671 if (!ASCII_BYTE_P (nc
)
2672 && (CHAR_HEAD_P (nc
)
2673 ? ! CHAR_HEAD_P (FETCH_BYTE (pos_byte
+ 1))
2674 : (pos_byte
> BEG_BYTE
2675 && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte
- 1)))))
2679 string
= make_multibyte_string (tt
+ oc
, 1, 1);
2680 /* This is less efficient, because it moves the gap,
2681 but it handles combining correctly. */
2682 replace_range (pos
, pos
+ 1, string
,
2684 pos_byte_next
= CHAR_TO_BYTE (pos
);
2685 if (pos_byte_next
> pos_byte
)
2686 /* Before combining happened. We should not
2687 increment POS. So, to cancel the later
2688 increment of POS, we decrease it now. */
2691 INC_POS (pos_byte_next
);
2695 record_change (pos
, 1);
2697 signal_after_change (pos
, 1, 1);
2698 update_compositions (pos
, pos
+ 1, CHECK_BORDER
);
2703 pos_byte
= pos_byte_next
;
2707 return make_number (cnt
);
2710 DEFUN ("delete-region", Fdelete_region
, Sdelete_region
, 2, 2, "r",
2711 "Delete the text between point and mark.\n\
2712 When called from a program, expects two arguments,\n\
2713 positions (integers or markers) specifying the stretch to be deleted.")
2715 Lisp_Object start
, end
;
2717 validate_region (&start
, &end
);
2718 del_range (XINT (start
), XINT (end
));
2722 DEFUN ("delete-and-extract-region", Fdelete_and_extract_region
,
2723 Sdelete_and_extract_region
, 2, 2, 0,
2724 "Delete the text between START and END and return it.")
2726 Lisp_Object start
, end
;
2728 validate_region (&start
, &end
);
2729 return del_range_1 (XINT (start
), XINT (end
), 1, 1);
2732 DEFUN ("widen", Fwiden
, Swiden
, 0, 0, "",
2733 "Remove restrictions (narrowing) from current buffer.\n\
2734 This allows the buffer's full text to be seen and edited.")
2737 if (BEG
!= BEGV
|| Z
!= ZV
)
2738 current_buffer
->clip_changed
= 1;
2740 BEGV_BYTE
= BEG_BYTE
;
2741 SET_BUF_ZV_BOTH (current_buffer
, Z
, Z_BYTE
);
2742 /* Changing the buffer bounds invalidates any recorded current column. */
2743 invalidate_current_column ();
2747 DEFUN ("narrow-to-region", Fnarrow_to_region
, Snarrow_to_region
, 2, 2, "r",
2748 "Restrict editing in this buffer to the current region.\n\
2749 The rest of the text becomes temporarily invisible and untouchable\n\
2750 but is not deleted; if you save the buffer in a file, the invisible\n\
2751 text is included in the file. \\[widen] makes all visible again.\n\
2752 See also `save-restriction'.\n\
2754 When calling from a program, pass two arguments; positions (integers\n\
2755 or markers) bounding the text that should remain visible.")
2757 register Lisp_Object start
, end
;
2759 CHECK_NUMBER_COERCE_MARKER (start
, 0);
2760 CHECK_NUMBER_COERCE_MARKER (end
, 1);
2762 if (XINT (start
) > XINT (end
))
2765 tem
= start
; start
= end
; end
= tem
;
2768 if (!(BEG
<= XINT (start
) && XINT (start
) <= XINT (end
) && XINT (end
) <= Z
))
2769 args_out_of_range (start
, end
);
2771 if (BEGV
!= XFASTINT (start
) || ZV
!= XFASTINT (end
))
2772 current_buffer
->clip_changed
= 1;
2774 SET_BUF_BEGV (current_buffer
, XFASTINT (start
));
2775 SET_BUF_ZV (current_buffer
, XFASTINT (end
));
2776 if (PT
< XFASTINT (start
))
2777 SET_PT (XFASTINT (start
));
2778 if (PT
> XFASTINT (end
))
2779 SET_PT (XFASTINT (end
));
2780 /* Changing the buffer bounds invalidates any recorded current column. */
2781 invalidate_current_column ();
2786 save_restriction_save ()
2788 if (BEGV
== BEG
&& ZV
== Z
)
2789 /* The common case that the buffer isn't narrowed.
2790 We return just the buffer object, which save_restriction_restore
2791 recognizes as meaning `no restriction'. */
2792 return Fcurrent_buffer ();
2794 /* We have to save a restriction, so return a pair of markers, one
2795 for the beginning and one for the end. */
2797 Lisp_Object beg
, end
;
2799 beg
= buildmark (BEGV
, BEGV_BYTE
);
2800 end
= buildmark (ZV
, ZV_BYTE
);
2802 /* END must move forward if text is inserted at its exact location. */
2803 XMARKER(end
)->insertion_type
= 1;
2805 return Fcons (beg
, end
);
2810 save_restriction_restore (data
)
2814 /* A pair of marks bounding a saved restriction. */
2816 struct Lisp_Marker
*beg
= XMARKER (XCAR (data
));
2817 struct Lisp_Marker
*end
= XMARKER (XCDR (data
));
2818 struct buffer
*buf
= beg
->buffer
; /* END should have the same buffer. */
2820 if (beg
->charpos
!= BUF_BEGV(buf
) || end
->charpos
!= BUF_ZV(buf
))
2821 /* The restriction has changed from the saved one, so restore
2822 the saved restriction. */
2824 int pt
= BUF_PT (buf
);
2826 SET_BUF_BEGV_BOTH (buf
, beg
->charpos
, beg
->bytepos
);
2827 SET_BUF_ZV_BOTH (buf
, end
->charpos
, end
->bytepos
);
2829 if (pt
< beg
->charpos
|| pt
> end
->charpos
)
2830 /* The point is outside the new visible range, move it inside. */
2831 SET_BUF_PT_BOTH (buf
,
2832 clip_to_bounds (beg
->charpos
, pt
, end
->charpos
),
2833 clip_to_bounds (beg
->bytepos
, BUF_PT_BYTE(buf
),
2836 buf
->clip_changed
= 1; /* Remember that the narrowing changed. */
2840 /* A buffer, which means that there was no old restriction. */
2842 struct buffer
*buf
= XBUFFER (data
);
2844 if (BUF_BEGV(buf
) != BUF_BEG(buf
) || BUF_ZV(buf
) != BUF_Z(buf
))
2845 /* The buffer has been narrowed, get rid of the narrowing. */
2847 SET_BUF_BEGV_BOTH (buf
, BUF_BEG(buf
), BUF_BEG_BYTE(buf
));
2848 SET_BUF_ZV_BOTH (buf
, BUF_Z(buf
), BUF_Z_BYTE(buf
));
2850 buf
->clip_changed
= 1; /* Remember that the narrowing changed. */
2857 DEFUN ("save-restriction", Fsave_restriction
, Ssave_restriction
, 0, UNEVALLED
, 0,
2858 "Execute BODY, saving and restoring current buffer's restrictions.\n\
2859 The buffer's restrictions make parts of the beginning and end invisible.\n\
2860 \(They are set up with `narrow-to-region' and eliminated with `widen'.)\n\
2861 This special form, `save-restriction', saves the current buffer's restrictions\n\
2862 when it is entered, and restores them when it is exited.\n\
2863 So any `narrow-to-region' within BODY lasts only until the end of the form.\n\
2864 The old restrictions settings are restored\n\
2865 even in case of abnormal exit (throw or error).\n\
2867 The value returned is the value of the last form in BODY.\n\
2869 Note: if you are using both `save-excursion' and `save-restriction',\n\
2870 use `save-excursion' outermost:\n\
2871 (save-excursion (save-restriction ...))")
2875 register Lisp_Object val
;
2876 int count
= specpdl_ptr
- specpdl
;
2878 record_unwind_protect (save_restriction_restore
, save_restriction_save ());
2879 val
= Fprogn (body
);
2880 return unbind_to (count
, val
);
2885 /* Buffer for the most recent text displayed by Fmessage. */
2886 static char *message_text
;
2888 /* Allocated length of that buffer. */
2889 static int message_length
;
2891 #endif /* not HAVE_MENUS */
2893 DEFUN ("message", Fmessage
, Smessage
, 1, MANY
, 0,
2894 "Print a one-line message at the bottom of the screen.\n\
2895 The first argument is a format control string, and the rest are data\n\
2896 to be formatted under control of the string. See `format' for details.\n\
2898 If the first argument is nil, clear any existing message; let the\n\
2899 minibuffer contents show.")
2911 register Lisp_Object val
;
2912 val
= Fformat (nargs
, args
);
2913 message3 (val
, STRING_BYTES (XSTRING (val
)), STRING_MULTIBYTE (val
));
2918 DEFUN ("message-box", Fmessage_box
, Smessage_box
, 1, MANY
, 0,
2919 "Display a message, in a dialog box if possible.\n\
2920 If a dialog box is not available, use the echo area.\n\
2921 The first argument is a format control string, and the rest are data\n\
2922 to be formatted under control of the string. See `format' for details.\n\
2924 If the first argument is nil, clear any existing message; let the\n\
2925 minibuffer contents show.")
2937 register Lisp_Object val
;
2938 val
= Fformat (nargs
, args
);
2941 Lisp_Object pane
, menu
, obj
;
2942 struct gcpro gcpro1
;
2943 pane
= Fcons (Fcons (build_string ("OK"), Qt
), Qnil
);
2945 menu
= Fcons (val
, pane
);
2946 obj
= Fx_popup_dialog (Qt
, menu
);
2950 #else /* not HAVE_MENUS */
2951 /* Copy the data so that it won't move when we GC. */
2954 message_text
= (char *)xmalloc (80);
2955 message_length
= 80;
2957 if (STRING_BYTES (XSTRING (val
)) > message_length
)
2959 message_length
= STRING_BYTES (XSTRING (val
));
2960 message_text
= (char *)xrealloc (message_text
, message_length
);
2962 bcopy (XSTRING (val
)->data
, message_text
, STRING_BYTES (XSTRING (val
)));
2963 message2 (message_text
, STRING_BYTES (XSTRING (val
)),
2964 STRING_MULTIBYTE (val
));
2966 #endif /* not HAVE_MENUS */
2970 extern Lisp_Object last_nonmenu_event
;
2973 DEFUN ("message-or-box", Fmessage_or_box
, Smessage_or_box
, 1, MANY
, 0,
2974 "Display a message in a dialog box or in the echo area.\n\
2975 If this command was invoked with the mouse, use a dialog box if\n\
2976 `use-dialog-box' is non-nil.\n\
2977 Otherwise, use the echo area.\n\
2978 The first argument is a format control string, and the rest are data\n\
2979 to be formatted under control of the string. See `format' for details.\n\
2981 If the first argument is nil, clear any existing message; let the\n\
2982 minibuffer contents show.")
2988 if ((NILP (last_nonmenu_event
) || CONSP (last_nonmenu_event
))
2990 return Fmessage_box (nargs
, args
);
2992 return Fmessage (nargs
, args
);
2995 DEFUN ("current-message", Fcurrent_message
, Scurrent_message
, 0, 0, 0,
2996 "Return the string currently displayed in the echo area, or nil if none.")
2999 return current_message ();
3003 DEFUN ("propertize", Fpropertize
, Spropertize
, 3, MANY
, 0,
3004 "Return a copy of STRING with text properties added.\n\
3005 First argument is the string to copy.\n\
3006 Remaining arguments form a sequence of PROPERTY VALUE pairs for text\n\
3007 properties to add to the result ")
3012 Lisp_Object properties
, string
;
3013 struct gcpro gcpro1
, gcpro2
;
3016 /* Number of args must be odd. */
3017 if ((nargs
& 1) == 0 || nargs
< 3)
3018 error ("Wrong number of arguments");
3020 properties
= string
= Qnil
;
3021 GCPRO2 (properties
, string
);
3023 /* First argument must be a string. */
3024 CHECK_STRING (args
[0], 0);
3025 string
= Fcopy_sequence (args
[0]);
3027 for (i
= 1; i
< nargs
; i
+= 2)
3029 CHECK_SYMBOL (args
[i
], i
);
3030 properties
= Fcons (args
[i
], Fcons (args
[i
+ 1], properties
));
3033 Fadd_text_properties (make_number (0),
3034 make_number (XSTRING (string
)->size
),
3035 properties
, string
);
3036 RETURN_UNGCPRO (string
);
3040 /* Number of bytes that STRING will occupy when put into the result.
3041 MULTIBYTE is nonzero if the result should be multibyte. */
3043 #define CONVERTED_BYTE_SIZE(MULTIBYTE, STRING) \
3044 (((MULTIBYTE) && ! STRING_MULTIBYTE (STRING)) \
3045 ? count_size_as_multibyte (XSTRING (STRING)->data, \
3046 STRING_BYTES (XSTRING (STRING))) \
3047 : STRING_BYTES (XSTRING (STRING)))
3049 DEFUN ("format", Fformat
, Sformat
, 1, MANY
, 0,
3050 "Format a string out of a control-string and arguments.\n\
3051 The first argument is a control string.\n\
3052 The other arguments are substituted into it to make the result, a string.\n\
3053 It may contain %-sequences meaning to substitute the next argument.\n\
3054 %s means print a string argument. Actually, prints any object, with `princ'.\n\
3055 %d means print as number in decimal (%o octal, %x hex).\n\
3056 %e means print a number in exponential notation.\n\
3057 %f means print a number in decimal-point notation.\n\
3058 %g means print a number in exponential notation\n\
3059 or decimal-point notation, whichever uses fewer characters.\n\
3060 %c means print a number as a single character.\n\
3061 %S means print any object as an s-expression (using `prin1').\n\
3062 The argument used for %d, %o, %x, %e, %f, %g or %c must be a number.\n\
3063 Use %% to put a single % into the output.")
3066 register Lisp_Object
*args
;
3068 register int n
; /* The number of the next arg to substitute */
3069 register int total
; /* An estimate of the final length */
3071 register unsigned char *format
, *end
;
3073 /* Nonzero if the output should be a multibyte string,
3074 which is true if any of the inputs is one. */
3076 /* When we make a multibyte string, we must pay attention to the
3077 byte combining problem, i.e., a byte may be combined with a
3078 multibyte charcter of the previous string. This flag tells if we
3079 must consider such a situation or not. */
3080 int maybe_combine_byte
;
3081 unsigned char *this_format
;
3089 /* It should not be necessary to GCPRO ARGS, because
3090 the caller in the interpreter should take care of that. */
3092 /* Try to determine whether the result should be multibyte.
3093 This is not always right; sometimes the result needs to be multibyte
3094 because of an object that we will pass through prin1,
3095 and in that case, we won't know it here. */
3096 for (n
= 0; n
< nargs
; n
++)
3097 if (STRINGP (args
[n
]) && STRING_MULTIBYTE (args
[n
]))
3100 CHECK_STRING (args
[0], 0);
3102 /* If we start out planning a unibyte result,
3103 and later find it has to be multibyte, we jump back to retry. */
3106 format
= XSTRING (args
[0])->data
;
3107 end
= format
+ STRING_BYTES (XSTRING (args
[0]));
3110 /* Make room in result for all the non-%-codes in the control string. */
3111 total
= 5 + CONVERTED_BYTE_SIZE (multibyte
, args
[0]);
3113 /* Add to TOTAL enough space to hold the converted arguments. */
3116 while (format
!= end
)
3117 if (*format
++ == '%')
3119 int minlen
, thissize
= 0;
3120 unsigned char *this_format_start
= format
- 1;
3122 /* Process a numeric arg and skip it. */
3123 minlen
= atoi (format
);
3127 while ((*format
>= '0' && *format
<= '9')
3128 || *format
== '-' || *format
== ' ' || *format
== '.')
3131 if (format
- this_format_start
+ 1 > longest_format
)
3132 longest_format
= format
- this_format_start
+ 1;
3135 error ("Format string ends in middle of format specifier");
3138 else if (++n
>= nargs
)
3139 error ("Not enough arguments for format string");
3140 else if (*format
== 'S')
3142 /* For `S', prin1 the argument and then treat like a string. */
3143 register Lisp_Object tem
;
3144 tem
= Fprin1_to_string (args
[n
], Qnil
);
3145 if (STRING_MULTIBYTE (tem
) && ! multibyte
)
3153 else if (SYMBOLP (args
[n
]))
3155 /* Use a temp var to avoid problems when ENABLE_CHECKING
3157 struct Lisp_String
*t
= XSYMBOL (args
[n
])->name
;
3158 XSETSTRING (args
[n
], t
);
3159 if (STRING_MULTIBYTE (args
[n
]) && ! multibyte
)
3166 else if (STRINGP (args
[n
]))
3169 if (*format
!= 's' && *format
!= 'S')
3170 error ("Format specifier doesn't match argument type");
3171 thissize
= CONVERTED_BYTE_SIZE (multibyte
, args
[n
]);
3173 /* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */
3174 else if (INTEGERP (args
[n
]) && *format
!= 's')
3176 /* The following loop assumes the Lisp type indicates
3177 the proper way to pass the argument.
3178 So make sure we have a flonum if the argument should
3180 if (*format
== 'e' || *format
== 'f' || *format
== 'g')
3181 args
[n
] = Ffloat (args
[n
]);
3183 if (*format
!= 'd' && *format
!= 'o' && *format
!= 'x'
3184 && *format
!= 'i' && *format
!= 'X' && *format
!= 'c')
3185 error ("Invalid format operation %%%c", *format
);
3189 && (! SINGLE_BYTE_CHAR_P (XINT (args
[n
]))
3190 || XINT (args
[n
]) == 0))
3197 args
[n
] = Fchar_to_string (args
[n
]);
3198 thissize
= STRING_BYTES (XSTRING (args
[n
]));
3201 else if (FLOATP (args
[n
]) && *format
!= 's')
3203 if (! (*format
== 'e' || *format
== 'f' || *format
== 'g'))
3204 args
[n
] = Ftruncate (args
[n
], Qnil
);
3209 /* Anything but a string, convert to a string using princ. */
3210 register Lisp_Object tem
;
3211 tem
= Fprin1_to_string (args
[n
], Qt
);
3212 if (STRING_MULTIBYTE (tem
) & ! multibyte
)
3221 if (thissize
< minlen
)
3224 total
+= thissize
+ 4;
3227 /* Now we can no longer jump to retry.
3228 TOTAL and LONGEST_FORMAT are known for certain. */
3230 this_format
= (unsigned char *) alloca (longest_format
+ 1);
3232 /* Allocate the space for the result.
3233 Note that TOTAL is an overestimate. */
3235 buf
= (char *) alloca (total
+ 1);
3237 buf
= (char *) xmalloc (total
+ 1);
3243 /* Scan the format and store result in BUF. */
3244 format
= XSTRING (args
[0])->data
;
3245 maybe_combine_byte
= 0;
3246 while (format
!= end
)
3252 unsigned char *this_format_start
= format
;
3256 /* Process a numeric arg and skip it. */
3257 minlen
= atoi (format
);
3259 minlen
= - minlen
, negative
= 1;
3261 while ((*format
>= '0' && *format
<= '9')
3262 || *format
== '-' || *format
== ' ' || *format
== '.')
3265 if (*format
++ == '%')
3274 if (STRINGP (args
[n
]))
3276 int padding
, nbytes
;
3277 int width
= strwidth (XSTRING (args
[n
])->data
,
3278 STRING_BYTES (XSTRING (args
[n
])));
3281 /* If spec requires it, pad on right with spaces. */
3282 padding
= minlen
- width
;
3284 while (padding
-- > 0)
3292 && !ASCII_BYTE_P (*((unsigned char *) p
- 1))
3293 && STRING_MULTIBYTE (args
[n
])
3294 && !CHAR_HEAD_P (XSTRING (args
[n
])->data
[0]))
3295 maybe_combine_byte
= 1;
3296 nbytes
= copy_text (XSTRING (args
[n
])->data
, p
,
3297 STRING_BYTES (XSTRING (args
[n
])),
3298 STRING_MULTIBYTE (args
[n
]), multibyte
);
3300 nchars
+= XSTRING (args
[n
])->size
;
3303 while (padding
-- > 0)
3309 /* If this argument has text properties, record where
3310 in the result string it appears. */
3311 if (XSTRING (args
[n
])->intervals
)
3315 int nbytes
= nargs
* sizeof *info
;
3316 info
= (struct info
*) alloca (nbytes
);
3317 bzero (info
, nbytes
);
3320 info
[n
].start
= start
;
3321 info
[n
].end
= nchars
;
3324 else if (INTEGERP (args
[n
]) || FLOATP (args
[n
]))
3328 bcopy (this_format_start
, this_format
,
3329 format
- this_format_start
);
3330 this_format
[format
- this_format_start
] = 0;
3332 if (INTEGERP (args
[n
]))
3333 sprintf (p
, this_format
, XINT (args
[n
]));
3335 sprintf (p
, this_format
, XFLOAT_DATA (args
[n
]));
3339 && !ASCII_BYTE_P (*((unsigned char *) p
- 1))
3340 && !CHAR_HEAD_P (*((unsigned char *) p
)))
3341 maybe_combine_byte
= 1;
3342 this_nchars
= strlen (p
);
3344 p
+= str_to_multibyte (p
, buf
+ total
- p
, this_nchars
);
3347 nchars
+= this_nchars
;
3350 else if (STRING_MULTIBYTE (args
[0]))
3352 /* Copy a whole multibyte character. */
3355 && !ASCII_BYTE_P (*((unsigned char *) p
- 1))
3356 && !CHAR_HEAD_P (*format
))
3357 maybe_combine_byte
= 1;
3359 while (! CHAR_HEAD_P (*format
)) *p
++ = *format
++;
3364 /* Convert a single-byte character to multibyte. */
3365 int len
= copy_text (format
, p
, 1, 0, 1);
3372 *p
++ = *format
++, nchars
++;
3375 if (maybe_combine_byte
)
3376 nchars
= multibyte_chars_in_text (buf
, p
- buf
);
3377 val
= make_specified_string (buf
, nchars
, p
- buf
, multibyte
);
3379 /* If we allocated BUF with malloc, free it too. */
3383 /* If the format string has text properties, or any of the string
3384 arguments has text properties, set up text properties of the
3387 if (XSTRING (args
[0])->intervals
|| info
)
3389 Lisp_Object len
, new_len
, props
;
3390 struct gcpro gcpro1
;
3392 /* Add text properties from the format string. */
3393 len
= make_number (XSTRING (args
[0])->size
);
3394 props
= text_property_list (args
[0], make_number (0), len
, Qnil
);
3399 new_len
= make_number (XSTRING (val
)->size
);
3400 extend_property_ranges (props
, len
, new_len
);
3401 add_text_properties_from_list (val
, props
, make_number (0));
3404 /* Add text properties from arguments. */
3406 for (n
= 1; n
< nargs
; ++n
)
3409 len
= make_number (XSTRING (args
[n
])->size
);
3410 new_len
= make_number (info
[n
].end
- info
[n
].start
);
3411 props
= text_property_list (args
[n
], make_number (0), len
, Qnil
);
3412 extend_property_ranges (props
, len
, new_len
);
3413 /* If successive arguments have properites, be sure that
3414 the value of `composition' property be the copy. */
3415 if (n
> 1 && info
[n
- 1].end
)
3416 make_composition_value_copy (props
);
3417 add_text_properties_from_list (val
, props
,
3418 make_number (info
[n
].start
));
3431 format1 (string1
, arg0
, arg1
, arg2
, arg3
, arg4
)
3432 EMACS_INT arg0
, arg1
, arg2
, arg3
, arg4
;
3446 doprnt (buf
, sizeof buf
, string1
, (char *)0, 5, (char **) args
);
3448 doprnt (buf
, sizeof buf
, string1
, (char *)0, 5, &string1
+ 1);
3450 return build_string (buf
);
3453 DEFUN ("char-equal", Fchar_equal
, Schar_equal
, 2, 2, 0,
3454 "Return t if two characters match, optionally ignoring case.\n\
3455 Both arguments must be characters (i.e. integers).\n\
3456 Case is ignored if `case-fold-search' is non-nil in the current buffer.")
3458 register Lisp_Object c1
, c2
;
3461 CHECK_NUMBER (c1
, 0);
3462 CHECK_NUMBER (c2
, 1);
3464 if (XINT (c1
) == XINT (c2
))
3466 if (NILP (current_buffer
->case_fold_search
))
3469 /* Do these in separate statements,
3470 then compare the variables.
3471 because of the way DOWNCASE uses temp variables. */
3472 i1
= DOWNCASE (XFASTINT (c1
));
3473 i2
= DOWNCASE (XFASTINT (c2
));
3474 return (i1
== i2
? Qt
: Qnil
);
3477 /* Transpose the markers in two regions of the current buffer, and
3478 adjust the ones between them if necessary (i.e.: if the regions
3481 START1, END1 are the character positions of the first region.
3482 START1_BYTE, END1_BYTE are the byte positions.
3483 START2, END2 are the character positions of the second region.
3484 START2_BYTE, END2_BYTE are the byte positions.
3486 Traverses the entire marker list of the buffer to do so, adding an
3487 appropriate amount to some, subtracting from some, and leaving the
3488 rest untouched. Most of this is copied from adjust_markers in insdel.c.
3490 It's the caller's job to ensure that START1 <= END1 <= START2 <= END2. */
3493 transpose_markers (start1
, end1
, start2
, end2
,
3494 start1_byte
, end1_byte
, start2_byte
, end2_byte
)
3495 register int start1
, end1
, start2
, end2
;
3496 register int start1_byte
, end1_byte
, start2_byte
, end2_byte
;
3498 register int amt1
, amt1_byte
, amt2
, amt2_byte
, diff
, diff_byte
, mpos
;
3499 register Lisp_Object marker
;
3501 /* Update point as if it were a marker. */
3505 TEMP_SET_PT_BOTH (PT
+ (end2
- end1
),
3506 PT_BYTE
+ (end2_byte
- end1_byte
));
3507 else if (PT
< start2
)
3508 TEMP_SET_PT_BOTH (PT
+ (end2
- start2
) - (end1
- start1
),
3509 (PT_BYTE
+ (end2_byte
- start2_byte
)
3510 - (end1_byte
- start1_byte
)));
3512 TEMP_SET_PT_BOTH (PT
- (start2
- start1
),
3513 PT_BYTE
- (start2_byte
- start1_byte
));
3515 /* We used to adjust the endpoints here to account for the gap, but that
3516 isn't good enough. Even if we assume the caller has tried to move the
3517 gap out of our way, it might still be at start1 exactly, for example;
3518 and that places it `inside' the interval, for our purposes. The amount
3519 of adjustment is nontrivial if there's a `denormalized' marker whose
3520 position is between GPT and GPT + GAP_SIZE, so it's simpler to leave
3521 the dirty work to Fmarker_position, below. */
3523 /* The difference between the region's lengths */
3524 diff
= (end2
- start2
) - (end1
- start1
);
3525 diff_byte
= (end2_byte
- start2_byte
) - (end1_byte
- start1_byte
);
3527 /* For shifting each marker in a region by the length of the other
3528 region plus the distance between the regions. */
3529 amt1
= (end2
- start2
) + (start2
- end1
);
3530 amt2
= (end1
- start1
) + (start2
- end1
);
3531 amt1_byte
= (end2_byte
- start2_byte
) + (start2_byte
- end1_byte
);
3532 amt2_byte
= (end1_byte
- start1_byte
) + (start2_byte
- end1_byte
);
3534 for (marker
= BUF_MARKERS (current_buffer
); !NILP (marker
);
3535 marker
= XMARKER (marker
)->chain
)
3537 mpos
= marker_byte_position (marker
);
3538 if (mpos
>= start1_byte
&& mpos
< end2_byte
)
3540 if (mpos
< end1_byte
)
3542 else if (mpos
< start2_byte
)
3546 XMARKER (marker
)->bytepos
= mpos
;
3548 mpos
= XMARKER (marker
)->charpos
;
3549 if (mpos
>= start1
&& mpos
< end2
)
3553 else if (mpos
< start2
)
3558 XMARKER (marker
)->charpos
= mpos
;
3562 DEFUN ("transpose-regions", Ftranspose_regions
, Stranspose_regions
, 4, 5, 0,
3563 "Transpose region START1 to END1 with START2 to END2.\n\
3564 The regions may not be overlapping, because the size of the buffer is\n\
3565 never changed in a transposition.\n\
3567 Optional fifth arg LEAVE_MARKERS, if non-nil, means don't update\n\
3568 any markers that happen to be located in the regions.\n\
3570 Transposing beyond buffer boundaries is an error.")
3571 (startr1
, endr1
, startr2
, endr2
, leave_markers
)
3572 Lisp_Object startr1
, endr1
, startr2
, endr2
, leave_markers
;
3574 register int start1
, end1
, start2
, end2
;
3575 int start1_byte
, start2_byte
, len1_byte
, len2_byte
;
3576 int gap
, len1
, len_mid
, len2
;
3577 unsigned char *start1_addr
, *start2_addr
, *temp
;
3578 struct gcpro gcpro1
, gcpro2
;
3580 INTERVAL cur_intv
, tmp_interval1
, tmp_interval_mid
, tmp_interval2
;
3581 cur_intv
= BUF_INTERVALS (current_buffer
);
3583 validate_region (&startr1
, &endr1
);
3584 validate_region (&startr2
, &endr2
);
3586 start1
= XFASTINT (startr1
);
3587 end1
= XFASTINT (endr1
);
3588 start2
= XFASTINT (startr2
);
3589 end2
= XFASTINT (endr2
);
3592 /* Swap the regions if they're reversed. */
3595 register int glumph
= start1
;
3603 len1
= end1
- start1
;
3604 len2
= end2
- start2
;
3607 error ("Transposed regions overlap");
3608 else if (start1
== end1
|| start2
== end2
)
3609 error ("Transposed region has length 0");
3611 /* The possibilities are:
3612 1. Adjacent (contiguous) regions, or separate but equal regions
3613 (no, really equal, in this case!), or
3614 2. Separate regions of unequal size.
3616 The worst case is usually No. 2. It means that (aside from
3617 potential need for getting the gap out of the way), there also
3618 needs to be a shifting of the text between the two regions. So
3619 if they are spread far apart, we are that much slower... sigh. */
3621 /* It must be pointed out that the really studly thing to do would
3622 be not to move the gap at all, but to leave it in place and work
3623 around it if necessary. This would be extremely efficient,
3624 especially considering that people are likely to do
3625 transpositions near where they are working interactively, which
3626 is exactly where the gap would be found. However, such code
3627 would be much harder to write and to read. So, if you are
3628 reading this comment and are feeling squirrely, by all means have
3629 a go! I just didn't feel like doing it, so I will simply move
3630 the gap the minimum distance to get it out of the way, and then
3631 deal with an unbroken array. */
3633 /* Make sure the gap won't interfere, by moving it out of the text
3634 we will operate on. */
3635 if (start1
< gap
&& gap
< end2
)
3637 if (gap
- start1
< end2
- gap
)
3643 start1_byte
= CHAR_TO_BYTE (start1
);
3644 start2_byte
= CHAR_TO_BYTE (start2
);
3645 len1_byte
= CHAR_TO_BYTE (end1
) - start1_byte
;
3646 len2_byte
= CHAR_TO_BYTE (end2
) - start2_byte
;
3648 #ifdef BYTE_COMBINING_DEBUG
3651 if (count_combining_before (BYTE_POS_ADDR (start2_byte
),
3652 len2_byte
, start1
, start1_byte
)
3653 || count_combining_before (BYTE_POS_ADDR (start1_byte
),
3654 len1_byte
, end2
, start2_byte
+ len2_byte
)
3655 || count_combining_after (BYTE_POS_ADDR (start1_byte
),
3656 len1_byte
, end2
, start2_byte
+ len2_byte
))
3661 if (count_combining_before (BYTE_POS_ADDR (start2_byte
),
3662 len2_byte
, start1
, start1_byte
)
3663 || count_combining_before (BYTE_POS_ADDR (start1_byte
),
3664 len1_byte
, start2
, start2_byte
)
3665 || count_combining_after (BYTE_POS_ADDR (start2_byte
),
3666 len2_byte
, end1
, start1_byte
+ len1_byte
)
3667 || count_combining_after (BYTE_POS_ADDR (start1_byte
),
3668 len1_byte
, end2
, start2_byte
+ len2_byte
))
3673 /* Hmmm... how about checking to see if the gap is large
3674 enough to use as the temporary storage? That would avoid an
3675 allocation... interesting. Later, don't fool with it now. */
3677 /* Working without memmove, for portability (sigh), so must be
3678 careful of overlapping subsections of the array... */
3680 if (end1
== start2
) /* adjacent regions */
3682 modify_region (current_buffer
, start1
, end2
);
3683 record_change (start1
, len1
+ len2
);
3685 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
3686 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
3687 Fset_text_properties (make_number (start1
), make_number (end2
),
3690 /* First region smaller than second. */
3691 if (len1_byte
< len2_byte
)
3693 /* We use alloca only if it is small,
3694 because we want to avoid stack overflow. */
3695 if (len2_byte
> 20000)
3696 temp
= (unsigned char *) xmalloc (len2_byte
);
3698 temp
= (unsigned char *) alloca (len2_byte
);
3700 /* Don't precompute these addresses. We have to compute them
3701 at the last minute, because the relocating allocator might
3702 have moved the buffer around during the xmalloc. */
3703 start1_addr
= BYTE_POS_ADDR (start1_byte
);
3704 start2_addr
= BYTE_POS_ADDR (start2_byte
);
3706 bcopy (start2_addr
, temp
, len2_byte
);
3707 bcopy (start1_addr
, start1_addr
+ len2_byte
, len1_byte
);
3708 bcopy (temp
, start1_addr
, len2_byte
);
3709 if (len2_byte
> 20000)
3713 /* First region not smaller than second. */
3715 if (len1_byte
> 20000)
3716 temp
= (unsigned char *) xmalloc (len1_byte
);
3718 temp
= (unsigned char *) alloca (len1_byte
);
3719 start1_addr
= BYTE_POS_ADDR (start1_byte
);
3720 start2_addr
= BYTE_POS_ADDR (start2_byte
);
3721 bcopy (start1_addr
, temp
, len1_byte
);
3722 bcopy (start2_addr
, start1_addr
, len2_byte
);
3723 bcopy (temp
, start1_addr
+ len2_byte
, len1_byte
);
3724 if (len1_byte
> 20000)
3727 graft_intervals_into_buffer (tmp_interval1
, start1
+ len2
,
3728 len1
, current_buffer
, 0);
3729 graft_intervals_into_buffer (tmp_interval2
, start1
,
3730 len2
, current_buffer
, 0);
3731 update_compositions (start1
, start1
+ len2
, CHECK_BORDER
);
3732 update_compositions (start1
+ len2
, end2
, CHECK_TAIL
);
3734 /* Non-adjacent regions, because end1 != start2, bleagh... */
3737 len_mid
= start2_byte
- (start1_byte
+ len1_byte
);
3739 if (len1_byte
== len2_byte
)
3740 /* Regions are same size, though, how nice. */
3742 modify_region (current_buffer
, start1
, end1
);
3743 modify_region (current_buffer
, start2
, end2
);
3744 record_change (start1
, len1
);
3745 record_change (start2
, len2
);
3746 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
3747 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
3748 Fset_text_properties (make_number (start1
), make_number (end1
),
3750 Fset_text_properties (make_number (start2
), make_number (end2
),
3753 if (len1_byte
> 20000)
3754 temp
= (unsigned char *) xmalloc (len1_byte
);
3756 temp
= (unsigned char *) alloca (len1_byte
);
3757 start1_addr
= BYTE_POS_ADDR (start1_byte
);
3758 start2_addr
= BYTE_POS_ADDR (start2_byte
);
3759 bcopy (start1_addr
, temp
, len1_byte
);
3760 bcopy (start2_addr
, start1_addr
, len2_byte
);
3761 bcopy (temp
, start2_addr
, len1_byte
);
3762 if (len1_byte
> 20000)
3764 graft_intervals_into_buffer (tmp_interval1
, start2
,
3765 len1
, current_buffer
, 0);
3766 graft_intervals_into_buffer (tmp_interval2
, start1
,
3767 len2
, current_buffer
, 0);
3770 else if (len1_byte
< len2_byte
) /* Second region larger than first */
3771 /* Non-adjacent & unequal size, area between must also be shifted. */
3773 modify_region (current_buffer
, start1
, end2
);
3774 record_change (start1
, (end2
- start1
));
3775 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
3776 tmp_interval_mid
= copy_intervals (cur_intv
, end1
, len_mid
);
3777 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
3778 Fset_text_properties (make_number (start1
), make_number (end2
),
3781 /* holds region 2 */
3782 if (len2_byte
> 20000)
3783 temp
= (unsigned char *) xmalloc (len2_byte
);
3785 temp
= (unsigned char *) alloca (len2_byte
);
3786 start1_addr
= BYTE_POS_ADDR (start1_byte
);
3787 start2_addr
= BYTE_POS_ADDR (start2_byte
);
3788 bcopy (start2_addr
, temp
, len2_byte
);
3789 bcopy (start1_addr
, start1_addr
+ len_mid
+ len2_byte
, len1_byte
);
3790 safe_bcopy (start1_addr
+ len1_byte
, start1_addr
+ len2_byte
, len_mid
);
3791 bcopy (temp
, start1_addr
, len2_byte
);
3792 if (len2_byte
> 20000)
3794 graft_intervals_into_buffer (tmp_interval1
, end2
- len1
,
3795 len1
, current_buffer
, 0);
3796 graft_intervals_into_buffer (tmp_interval_mid
, start1
+ len2
,
3797 len_mid
, current_buffer
, 0);
3798 graft_intervals_into_buffer (tmp_interval2
, start1
,
3799 len2
, current_buffer
, 0);
3802 /* Second region smaller than first. */
3804 record_change (start1
, (end2
- start1
));
3805 modify_region (current_buffer
, start1
, end2
);
3807 tmp_interval1
= copy_intervals (cur_intv
, start1
, len1
);
3808 tmp_interval_mid
= copy_intervals (cur_intv
, end1
, len_mid
);
3809 tmp_interval2
= copy_intervals (cur_intv
, start2
, len2
);
3810 Fset_text_properties (make_number (start1
), make_number (end2
),
3813 /* holds region 1 */
3814 if (len1_byte
> 20000)
3815 temp
= (unsigned char *) xmalloc (len1_byte
);
3817 temp
= (unsigned char *) alloca (len1_byte
);
3818 start1_addr
= BYTE_POS_ADDR (start1_byte
);
3819 start2_addr
= BYTE_POS_ADDR (start2_byte
);
3820 bcopy (start1_addr
, temp
, len1_byte
);
3821 bcopy (start2_addr
, start1_addr
, len2_byte
);
3822 bcopy (start1_addr
+ len1_byte
, start1_addr
+ len2_byte
, len_mid
);
3823 bcopy (temp
, start1_addr
+ len2_byte
+ len_mid
, len1_byte
);
3824 if (len1_byte
> 20000)
3826 graft_intervals_into_buffer (tmp_interval1
, end2
- len1
,
3827 len1
, current_buffer
, 0);
3828 graft_intervals_into_buffer (tmp_interval_mid
, start1
+ len2
,
3829 len_mid
, current_buffer
, 0);
3830 graft_intervals_into_buffer (tmp_interval2
, start1
,
3831 len2
, current_buffer
, 0);
3834 update_compositions (start1
, start1
+ len2
, CHECK_BORDER
);
3835 update_compositions (end2
- len1
, end2
, CHECK_BORDER
);
3838 /* When doing multiple transpositions, it might be nice
3839 to optimize this. Perhaps the markers in any one buffer
3840 should be organized in some sorted data tree. */
3841 if (NILP (leave_markers
))
3843 transpose_markers (start1
, end1
, start2
, end2
,
3844 start1_byte
, start1_byte
+ len1_byte
,
3845 start2_byte
, start2_byte
+ len2_byte
);
3846 fix_overlays_in_range (start1
, end2
);
3858 Qbuffer_access_fontify_functions
3859 = intern ("buffer-access-fontify-functions");
3860 staticpro (&Qbuffer_access_fontify_functions
);
3862 DEFVAR_LISP ("inhibit-field-text-motion", &Vinhibit_field_text_motion
,
3863 "Non-nil means.text motion commands don't notice fields.");
3864 Vinhibit_field_text_motion
= Qnil
;
3866 DEFVAR_LISP ("buffer-access-fontify-functions",
3867 &Vbuffer_access_fontify_functions
,
3868 "List of functions called by `buffer-substring' to fontify if necessary.\n\
3869 Each function is called with two arguments which specify the range\n\
3870 of the buffer being accessed.");
3871 Vbuffer_access_fontify_functions
= Qnil
;
3875 extern Lisp_Object Vprin1_to_string_buffer
;
3876 obuf
= Fcurrent_buffer ();
3877 /* Do this here, because init_buffer_once is too early--it won't work. */
3878 Fset_buffer (Vprin1_to_string_buffer
);
3879 /* Make sure buffer-access-fontify-functions is nil in this buffer. */
3880 Fset (Fmake_local_variable (intern ("buffer-access-fontify-functions")),
3885 DEFVAR_LISP ("buffer-access-fontified-property",
3886 &Vbuffer_access_fontified_property
,
3887 "Property which (if non-nil) indicates text has been fontified.\n\
3888 `buffer-substring' need not call the `buffer-access-fontify-functions'\n\
3889 functions if all the text being accessed has this property.");
3890 Vbuffer_access_fontified_property
= Qnil
;
3892 DEFVAR_LISP ("system-name", &Vsystem_name
,
3893 "The name of the machine Emacs is running on.");
3895 DEFVAR_LISP ("user-full-name", &Vuser_full_name
,
3896 "The full name of the user logged in.");
3898 DEFVAR_LISP ("user-login-name", &Vuser_login_name
,
3899 "The user's name, taken from environment variables if possible.");
3901 DEFVAR_LISP ("user-real-login-name", &Vuser_real_login_name
,
3902 "The user's name, based upon the real uid only.");
3904 defsubr (&Spropertize
);
3905 defsubr (&Schar_equal
);
3906 defsubr (&Sgoto_char
);
3907 defsubr (&Sstring_to_char
);
3908 defsubr (&Schar_to_string
);
3909 defsubr (&Sbuffer_substring
);
3910 defsubr (&Sbuffer_substring_no_properties
);
3911 defsubr (&Sbuffer_string
);
3913 defsubr (&Spoint_marker
);
3914 defsubr (&Smark_marker
);
3916 defsubr (&Sregion_beginning
);
3917 defsubr (&Sregion_end
);
3919 staticpro (&Qfield
);
3920 Qfield
= intern ("field");
3921 staticpro (&Qboundary
);
3922 Qboundary
= intern ("boundary");
3923 defsubr (&Sfield_beginning
);
3924 defsubr (&Sfield_end
);
3925 defsubr (&Sfield_string
);
3926 defsubr (&Sfield_string_no_properties
);
3927 defsubr (&Sdelete_field
);
3928 defsubr (&Sconstrain_to_field
);
3930 defsubr (&Sline_beginning_position
);
3931 defsubr (&Sline_end_position
);
3933 /* defsubr (&Smark); */
3934 /* defsubr (&Sset_mark); */
3935 defsubr (&Ssave_excursion
);
3936 defsubr (&Ssave_current_buffer
);
3938 defsubr (&Sbufsize
);
3939 defsubr (&Spoint_max
);
3940 defsubr (&Spoint_min
);
3941 defsubr (&Spoint_min_marker
);
3942 defsubr (&Spoint_max_marker
);
3943 defsubr (&Sgap_position
);
3944 defsubr (&Sgap_size
);
3945 defsubr (&Sposition_bytes
);
3946 defsubr (&Sbyte_to_position
);
3952 defsubr (&Sfollowing_char
);
3953 defsubr (&Sprevious_char
);
3954 defsubr (&Schar_after
);
3955 defsubr (&Schar_before
);
3957 defsubr (&Sinsert_before_markers
);
3958 defsubr (&Sinsert_and_inherit
);
3959 defsubr (&Sinsert_and_inherit_before_markers
);
3960 defsubr (&Sinsert_char
);
3962 defsubr (&Suser_login_name
);
3963 defsubr (&Suser_real_login_name
);
3964 defsubr (&Suser_uid
);
3965 defsubr (&Suser_real_uid
);
3966 defsubr (&Suser_full_name
);
3967 defsubr (&Semacs_pid
);
3968 defsubr (&Scurrent_time
);
3969 defsubr (&Sformat_time_string
);
3970 defsubr (&Sfloat_time
);
3971 defsubr (&Sdecode_time
);
3972 defsubr (&Sencode_time
);
3973 defsubr (&Scurrent_time_string
);
3974 defsubr (&Scurrent_time_zone
);
3975 defsubr (&Sset_time_zone_rule
);
3976 defsubr (&Ssystem_name
);
3977 defsubr (&Smessage
);
3978 defsubr (&Smessage_box
);
3979 defsubr (&Smessage_or_box
);
3980 defsubr (&Scurrent_message
);
3983 defsubr (&Sinsert_buffer_substring
);
3984 defsubr (&Scompare_buffer_substrings
);
3985 defsubr (&Ssubst_char_in_region
);
3986 defsubr (&Stranslate_region
);
3987 defsubr (&Sdelete_region
);
3988 defsubr (&Sdelete_and_extract_region
);
3990 defsubr (&Snarrow_to_region
);
3991 defsubr (&Ssave_restriction
);
3992 defsubr (&Stranspose_regions
);