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(reset_buffer): Initialize display_count slot.

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(Fkill_buffer): Call frames_discard_buffer.
(record_buffer): Move buffer to front of frame_buffer_list.
(Fother_buffer): Use frame_buffer_list.

(init_buffer_once): Set up display_count.
(syms_of_buffer): Set up Lisp variable.
This commit is contained in:
Richard M. Stallman 1997-03-22 04:04:53 +00:00
parent a0e1f1855c
commit 7962a441e7
1 changed files with 54 additions and 6 deletions
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60
src/buffer.c
View file

@ -477,6 +477,7 @@ reset_buffer (b)
b->point_before_scroll = Qnil;
b->file_format = Qnil;
b->last_selected_window = Qnil;
XSETINT (b->display_count, 0);
b->extra2 = Qnil;
b->extra3 = Qnil;
}
@ -848,10 +849,26 @@ If BUFFER is omitted or nil, some interesting buffer is returned.")
register Lisp_Object buffer, visible_ok;
{
Lisp_Object Fset_buffer_major_mode ();
register Lisp_Object tail, buf, notsogood, tem;
register Lisp_Object tail, buf, notsogood, tem, pred, add_ons;
notsogood = Qnil;
for (tail = Vbuffer_alist; !NILP (tail); tail = Fcdr (tail))
tail = Vbuffer_alist;
pred = frame_buffer_predicate ();
/* Consider buffers that have been seen in the selected frame
before other buffers. */
tem = frame_buffer_list ();
add_ons = Qnil;
while (CONSP (tem))
{
if (BUFFERP (XCONS (tem)->car))
add_ons = Fcons (Fcons (Qnil, XCONS (tem)->car), add_ons);
tem = XCONS (tem)->cdr;
}
tail = nconc2 (Fnreverse (add_ons), tail);
for (; !NILP (tail); tail = Fcdr (tail))
{
buf = Fcdr (Fcar (tail));
if (EQ (buf, buffer))
@ -860,10 +877,9 @@ If BUFFER is omitted or nil, some interesting buffer is returned.")
continue;
/* If the selected frame has a buffer_predicate,
disregard buffers that don't fit the predicate. */
tem = frame_buffer_predicate ();
if (!NILP (tem))
if (!NILP (pred))
{
tem = call1 (tem, buf);
tem = call1 (pred, buf);
if (NILP (tem))
continue;
}
@ -1063,6 +1079,7 @@ with SIGHUP.")
Vinhibit_quit = Qt;
replace_buffer_in_all_windows (buf);
Vbuffer_alist = Fdelq (Frassq (buf, Vbuffer_alist), Vbuffer_alist);
frames_discard_buffer (buf);
Vinhibit_quit = tem;
/* Delete any auto-save file, if we saved it in this session. */
@ -1167,8 +1184,33 @@ record_buffer (buf)
else
XCONS (prev)->cdr = XCONS (XCONS (prev)->cdr)->cdr;
XCONS(link)->cdr = Vbuffer_alist;
XCONS (link)->cdr = Vbuffer_alist;
Vbuffer_alist = link;
/* Now move this buffer to the front of frame_buffer_list also. */
prev = Qnil;
for (link = frame_buffer_list (); CONSP (link); link = XCONS (link)->cdr)
{
if (EQ (XCONS (link)->car, buf))
break;
prev = link;
}
/* Effectively do delq. */
if (CONSP (link))
{
if (NILP (prev))
set_frame_buffer_list (XCONS (frame_buffer_list ())->cdr);
else
XCONS (prev)->cdr = XCONS (XCONS (prev)->cdr)->cdr;
XCONS (link)->cdr = frame_buffer_list ();
set_frame_buffer_list (link);
}
else
set_frame_buffer_list (Fcons (buf, frame_buffer_list ()));
}
DEFUN ("set-buffer-major-mode", Fset_buffer_major_mode, Sset_buffer_major_mode, 1, 1, 0,
@ -3521,6 +3563,7 @@ init_buffer_once ()
XSETFASTINT (buffer_defaults.left_margin, 0);
buffer_defaults.cache_long_line_scans = Qnil;
buffer_defaults.file_truename = Qnil;
XSETFASTINT (buffer_defaults.display_count, 0);
/* Assign the local-flags to the slots that have default values.
The local flag is a bit that is used in the buffer
@ -3546,6 +3589,7 @@ init_buffer_once ()
XSETINT (buffer_local_flags.file_truename, -1);
XSETINT (buffer_local_flags.invisibility_spec, -1);
XSETINT (buffer_local_flags.file_format, -1);
XSETINT (buffer_local_flags.display_count, -1);
XSETFASTINT (buffer_local_flags.mode_line_format, 1);
XSETFASTINT (buffer_local_flags.abbrev_mode, 2);
@ -4137,6 +4181,10 @@ If an element is a cons cell of the form (PROP . ELLIPSIS),\n\
then characters with property value PROP are invisible,\n\
and they have an ellipsis as well if ELLIPSIS is non-nil.");
DEFVAR_PER_BUFFER ("buffer-display-count",
&current_buffer->display_count, Qnil,
"A number incremented each time the buffer is displayed in a window.");
DEFVAR_LISP ("transient-mark-mode", &Vtransient_mark_mode,
"*Non-nil means deactivate the mark when the buffer contents change.\n\
Non-nil also enables highlighting of the region whenever the mark is active.\n\