/* Buffer manipulation primitives for GNU Emacs.
Copyright (C) 1985, 1986, 1987, 1988, 1989, 1993, 1994,
1995, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004, 2005 Free Software Foundation, Inc.
+ 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include "window.h"
#include "commands.h"
#include "buffer.h"
-#include "charset.h"
+#include "character.h"
#include "region-cache.h"
#include "indent.h"
#include "blockinput.h"
static void modify_overlay P_ ((struct buffer *, EMACS_INT, EMACS_INT));
static Lisp_Object buffer_lisp_local_variables P_ ((struct buffer *));
+extern char * emacs_strerror P_ ((int));
/* For debugging; temporary. See set_buffer_internal. */
/* Lisp_Object Qlisp_mode, Vcheck_symbol; */
clone_per_buffer_values (from, to)
struct buffer *from, *to;
{
- Lisp_Object to_buffer, tem;
+ Lisp_Object to_buffer;
int offset;
XSETBUFFER (to_buffer, to);
/* First run the query functions; if any query is answered no,
don't kill the buffer. */
arglist[0] = Qkill_buffer_query_functions;
- if (NILP (Frun_hook_with_args_until_failure (1, arglist)))
+ tem = Frun_hook_with_args_until_failure (1, arglist);
+ if (NILP (tem))
return unbind_to (count, Qnil);
/* Then run the hooks. */
}
}
Fset_buffer (buf);
- if (NILP (norecord))
- /* Why bother ? Fselect_window will do it for us anyway. -stef */
- record_buffer (buf);
Fselect_window (Fdisplay_buffer (buf, other_window, Qnil), norecord);
return buf;
}
doc: /* Set the multibyte flag of the current buffer to FLAG.
If FLAG is t, this makes the buffer a multibyte buffer.
If FLAG is nil, this makes the buffer a single-byte buffer.
-The buffer contents remain unchanged as a sequence of bytes
-but the contents viewed as characters do change.
+In these cases, the buffer contents remain unchanged as a sequence of
+bytes but the contents viewed as characters do change.
+If FLAG is `to', this makes the buffer a multibyte buffer by changing
+all eight-bit bytes to eight-bit characters.
If the multibyte flag was really changed, undo information of the
current buffer is cleared. */)
(flag)
p = GAP_END_ADDR;
stop = Z;
}
- if (MULTIBYTE_STR_AS_UNIBYTE_P (p, bytes))
- p += bytes, pos += bytes;
- else
+ if (ASCII_BYTE_P (*p))
+ p++, pos++;
+ else if (CHAR_BYTE8_HEAD_P (*p))
{
- c = STRING_CHAR (p, stop - pos);
+ c = STRING_CHAR_AND_LENGTH (p, stop - pos, bytes);
/* Delete all bytes for this 8-bit character but the
last one, and change the last one to the charcter
code. */
zv -= bytes;
stop = Z;
}
+ else
+ {
+ bytes = BYTES_BY_CHAR_HEAD (*p);
+ p += bytes, pos += bytes;
+ }
}
if (narrowed)
Fnarrow_to_region (make_number (begv), make_number (zv));
{
int pt = PT;
int pos, stop;
- unsigned char *p;
+ unsigned char *p, *pend;
/* Be sure not to have a multibyte sequence striding over the GAP.
- Ex: We change this: "...abc\201 _GAP_ \241def..."
- to: "...abc _GAP_ \201\241def..." */
+ Ex: We change this: "...abc\302 _GAP_ \241def..."
+ to: "...abc _GAP_ \302\241def..." */
- if (GPT_BYTE > 1 && GPT_BYTE < Z_BYTE
+ if (EQ (flag, Qt)
+ && GPT_BYTE > 1 && GPT_BYTE < Z_BYTE
&& ! CHAR_HEAD_P (*(GAP_END_ADDR)))
{
unsigned char *p = GPT_ADDR - 1;
pos = BEG;
stop = GPT;
p = BEG_ADDR;
+ pend = GPT_ADDR;
while (1)
{
int bytes;
if (pos == Z)
break;
p = GAP_END_ADDR;
+ pend = Z_ADDR;
stop = Z;
}
- if (UNIBYTE_STR_AS_MULTIBYTE_P (p, stop - pos, bytes))
+ if (ASCII_BYTE_P (*p))
+ p++, pos++;
+ else if (EQ (flag, Qt) && (bytes = MULTIBYTE_LENGTH (p, pend)) > 0)
p += bytes, pos += bytes;
else
{
unsigned char tmp[MAX_MULTIBYTE_LENGTH];
+ int c;
- bytes = CHAR_STRING (*p, tmp);
+ c = BYTE8_TO_CHAR (*p);
+ bytes = CHAR_STRING (c, tmp);
*p = tmp[0];
TEMP_SET_PT_BOTH (pos + 1, pos + 1);
bytes--;
zv += bytes;
if (pos <= pt)
pt += bytes;
+ pend = Z_ADDR;
stop = Z;
}
}
/* If multiple windows show this buffer, we must do other windows. */
else if (buffer_shared > 1)
windows_or_buffers_changed = 1;
+ /* If we modify an overlay at the end of the buffer, we cannot
+ be sure that window end is still valid. */
+ else if (end >= ZV && start <= ZV)
+ windows_or_buffers_changed = 1;
++BUF_OVERLAY_MODIFF (buf);
}
== OVERLAY_POSITION (OVERLAY_END (overlay))))
Fdelete_overlay (overlay);
}
+
return value;
}
\f
buffer_defaults.vertical_scroll_bar_type = Qt;
buffer_defaults.indicate_empty_lines = Qnil;
buffer_defaults.indicate_buffer_boundaries = Qnil;
+ buffer_defaults.fringe_indicator_alist = Qnil;
+ buffer_defaults.fringe_cursor_alist = Qnil;
buffer_defaults.scroll_up_aggressively = Qnil;
buffer_defaults.scroll_down_aggressively = Qnil;
buffer_defaults.display_time = Qnil;
XSETFASTINT (buffer_local_flags.vertical_scroll_bar_type, idx); ++idx;
XSETFASTINT (buffer_local_flags.indicate_empty_lines, idx); ++idx;
XSETFASTINT (buffer_local_flags.indicate_buffer_boundaries, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.fringe_indicator_alist, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.fringe_cursor_alist, idx); ++idx;
XSETFASTINT (buffer_local_flags.scroll_up_aggressively, idx); ++idx;
XSETFASTINT (buffer_local_flags.scroll_down_aggressively, idx); ++idx;
XSETFASTINT (buffer_local_flags.header_line_format, idx); ++idx;
init_buffer ()
{
char *pwd;
- struct stat dotstat, pwdstat;
Lisp_Object temp;
int len;
doc: /* Default value of `indicate-buffer-boundaries' for buffers that don't override it.
This is the same as (default-value 'indicate-buffer-boundaries). */);
+ DEFVAR_LISP_NOPRO ("default-fringe-indicator-alist",
+ &buffer_defaults.fringe_indicator_alist,
+ doc: /* Default value of `fringe-indicator-alist' for buffers that don't override it.
+This is the same as (default-value 'fringe-indicator-alist'). */);
+
+ DEFVAR_LISP_NOPRO ("default-fringe-cursor-alist",
+ &buffer_defaults.fringe_cursor_alist,
+ doc: /* Default value of `fringe-cursor-alist' for buffers that don't override it.
+This is the same as (default-value 'fringe-cursor-alist'). */);
+
DEFVAR_LISP_NOPRO ("default-scroll-up-aggressively",
&buffer_defaults.scroll_up_aggressively,
doc: /* Default value of `scroll-up-aggressively'.
bitmaps in right fringe. To show just the angle bitmaps in the left
fringe, but no arrow bitmaps, use ((top . left) (bottom . left)). */);
+ DEFVAR_PER_BUFFER ("fringe-indicator-alist",
+ ¤t_buffer->fringe_indicator_alist, Qnil,
+ doc: /* *Mapping from logical to physical fringe indicator bitmaps.
+The value is an alist where each element (INDICATOR . BITMAPS)
+specifies the fringe bitmaps used to display a specific logical
+fringe indicator.
+
+INDICATOR specifies the logical indicator type which is one of the
+following symbols: `truncation' , `continuation', `overlay-arrow',
+`top', `bottom', `up', `down', `one-line', `empty-line', or `unknown'.
+
+BITMAPS is list of symbols (LEFT RIGHT [LEFT1 RIGHT1]) which specifies
+the actual bitmap shown in the left or right fringe for the logical
+indicator. LEFT and RIGHT are the bitmaps shown in the left and/or
+right fringe for the specific indicator. The LEFT1 or RIGHT1 bitmaps
+are used only for the `bottom' and `one-line' indicators when the last
+(only) line in has no final newline. BITMAPS may also be a single
+symbol which is used in both left and right fringes. */);
+
+ DEFVAR_PER_BUFFER ("fringe-cursor-alist",
+ ¤t_buffer->fringe_cursor_alist, Qnil,
+ doc: /* *Mapping from logical to physical fringe cursor bitmaps.
+The value is an alist where each element (CURSOR . BITMAP)
+specifies the fringe bitmaps used to display a specific logical
+cursor type in the fringe.
+
+CURSOR specifies the logical cursor type which is one of the following
+symbols: `box' , `hollow', `bar', `hbar', or `hollow-small'. The last
+one is used to show a hollow cursor on narrow lines display lines
+where the normal hollow cursor will not fit.
+
+BITMAP is the corresponding fringe bitmap shown for the logical
+cursor type. */);
+
DEFVAR_PER_BUFFER ("scroll-up-aggressively",
¤t_buffer->scroll_up_aggressively, Qnil,
doc: /* How far to scroll windows upward.
HCoop / bpt / emacs.git / blobdiff