/* Header file for the buffer manipulation primitives.
Copyright (C) 1985, 1986, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
/* Accessing the parameters of the current buffer. */
\f
/* Macros to set PT in the current buffer, or another buffer. */
-#define SET_PT(position) (set_point (current_buffer, (position)))
+#define SET_PT(position) (set_point (position))
#define TEMP_SET_PT(position) (temp_set_point (current_buffer, (position)))
-#define SET_PT_BOTH(position, byte) \
- (set_point_both (current_buffer, (position), (byte)))
+#define SET_PT_BOTH(position, byte) (set_point_both (position, byte))
#define TEMP_SET_PT_BOTH(position, byte) \
(temp_set_point_both (current_buffer, (position), (byte)))
-#define BUF_SET_PT(buffer, position) \
- (set_point ((buffer), (position)))
#define BUF_TEMP_SET_PT(buffer, position) \
(temp_set_point ((buffer), (position)))
-extern void set_point P_ ((struct buffer *, int));
-extern INLINE void temp_set_point P_ ((struct buffer *, int));
-extern void set_point_both P_ ((struct buffer *, int, int));
-extern INLINE void temp_set_point_both P_ ((struct buffer *, int, int));
-extern void enlarge_buffer_text P_ ((struct buffer *, int));
+extern void set_point P_ ((EMACS_INT));
+extern INLINE void temp_set_point P_ ((struct buffer *, EMACS_INT));
+extern void set_point_both P_ ((EMACS_INT, EMACS_INT));
+extern INLINE void temp_set_point_both P_ ((struct buffer *,
+ EMACS_INT, EMACS_INT));
+extern void enlarge_buffer_text P_ ((struct buffer *, EMACS_INT));
\f
/* Macros for setting the BEGV, ZV or PT of a given buffer.
and store the charpos in CHARPOS and the bytepos in BYTEPOS. */
#define DECODE_POSITION(charpos, bytepos, pos) \
-if (1) \
+do \
{ \
Lisp_Object __pos = (pos); \
if (NUMBERP (__pos)) \
else \
wrong_type_argument (Qinteger_or_marker_p, __pos); \
} \
-else
+while (0)
/* Return the address of byte position N in current buffer. */
#define FETCH_CHAR_AS_MULTIBYTE(pos) \
(!NILP (current_buffer->enable_multibyte_characters) \
? FETCH_MULTIBYTE_CHAR ((pos)) \
- : unibyte_char_to_multibyte (FETCH_BYTE ((pos))))
+ : unibyte_to_multibyte_table[(FETCH_BYTE ((pos)))])
\f
/* Macros for accessing a character or byte,
Check out mark_buffer (alloc.c) to see why. */
- EMACS_INT size;
+ EMACS_UINT size;
/* Next buffer, in chain of all buffers including killed buffers.
This chain is used only for garbage collection, in order to
EMACS_INT overlay_center;
/* Everything from here down must be a Lisp_Object. */
+ /* buffer-local Lisp variables start at `undo_list',
+ tho only the ones from `name' on are GC'd normally. */
+
+ /* Changes in the buffer are recorded here for undo.
+ t means don't record anything.
+ This information belongs to the base buffer of an indirect buffer,
+ But we can't store it in the struct buffer_text
+ because local variables have to be right in the struct buffer.
+ So we copy it around in set_buffer_internal.
+ This comes before `name' because it is marked in a special way. */
+ Lisp_Object undo_list;
/* The name of this buffer. */
Lisp_Object name;
Lisp_Object filename;
/* Dir for expanding relative file names. */
Lisp_Object directory;
- /* True iff this buffer has been backed up (if you write to the
+ /* True if this buffer has been backed up (if you write to the
visited file and it hasn't been backed up, then a backup will
be made). */
/* This isn't really used by the C code, so could be deleted. */
/* Mode line element that controls format of mode line. */
Lisp_Object mode_line_format;
- /* Changes in the buffer are recorded here for undo.
- t means don't record anything.
- This information belongs to the base buffer of an indirect buffer,
- But we can't store it in the struct buffer_text
- because local variables have to be right in the struct buffer.
- So we copy it around in set_buffer_internal.
- This comes before `name' because it is marked in a special way. */
- Lisp_Object undo_list;
-
/* Analogous to mode_line_format for the line displayed at the top
of windows. Nil means don't display that line. */
Lisp_Object header_line_format;
/* Non-nil means do not display continuation lines. */
Lisp_Object truncate_lines;
+ /* Non-nil means to use word wrapping when displaying continuation lines. */
+ Lisp_Object word_wrap;
/* Non-nil means display ctl chars with uparrow. */
Lisp_Object ctl_arrow;
/* Non-nil means display text from right to left. */
that don't have such names. */
extern struct buffer buffer_local_symbols;
-
-/* This structure holds the required types for the values in the
- buffer-local slots. If a slot contains Qnil, then the
- corresponding buffer slot may contain a value of any type. If a
- slot contains an integer, then prospective values' tags must be
- equal to that integer (except nil is always allowed).
- When a tag does not match, the function
- buffer_slot_type_mismatch will signal an error.
-
- If a slot here contains -1, the corresponding variable is read-only. */
-
-extern struct buffer buffer_local_types;
\f
extern void delete_all_overlays P_ ((struct buffer *));
extern void reset_buffer P_ ((struct buffer *));
extern void evaporate_overlays P_ ((EMACS_INT));
-extern int overlays_at P_ ((EMACS_INT, int, Lisp_Object **, int *, int *, int *, int));
+extern int overlays_at P_ ((EMACS_INT pos, int extend, Lisp_Object **vec_ptr,
+ int *len_ptr, EMACS_INT *next_ptr,
+ EMACS_INT *prev_ptr, int change_req));
extern int sort_overlays P_ ((Lisp_Object *, int, struct window *));
extern void recenter_overlay_lists P_ ((struct buffer *, EMACS_INT));
extern int overlay_strings P_ ((EMACS_INT, struct window *, unsigned char **));
extern void set_buffer_internal_1 P_ ((struct buffer *));
extern void set_buffer_temp P_ ((struct buffer *));
extern void record_buffer P_ ((Lisp_Object));
-extern void buffer_slot_type_mismatch P_ ((int)) NO_RETURN;
+extern void buffer_slot_type_mismatch P_ ((Lisp_Object, int)) NO_RETURN;
extern void fix_overlays_before P_ ((struct buffer *, EMACS_INT, EMACS_INT));
extern void mmap_set_vars P_ ((int));
} \
} while (0)
+EXFUN (Fbuffer_list, 1);
EXFUN (Fbuffer_live_p, 1);
EXFUN (Fbuffer_name, 1);
EXFUN (Fget_file_buffer, 1);
#define PER_BUFFER_SYMBOL(OFFSET) \
(*(Lisp_Object *)((OFFSET) + (char *) &buffer_local_symbols))
-/* Return the type of the per-buffer variable at offset OFFSET in the
- buffer structure. */
-
-#define PER_BUFFER_TYPE(OFFSET) \
- (*(Lisp_Object *)((OFFSET) + (char *) &buffer_local_types))
-
/* arch-tag: 679305dd-d41c-4a50-b170-3caf5c97b2d1
(do not change this comment) */
HCoop / bpt / emacs.git / blobdiff