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Code Issues Releases Activity

(last_boundary_buffer, last_boundary_position): New vars.

Browse Source 
(Fundo_boundary): Set them.
(syms_of_undo): Initialize them.
(record_point): Use them instead of last_point_position*.
(last_undo_buffer): Change type.
This commit is contained in:
Stefan Monnier 2008-04-04 16:59:52 +00:00
parent 7c37335792
commit 4591d6cbef
2 changed files with 39 additions and 36 deletions
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12
src/ChangeLog
View File

@ -1,7 +1,15 @@
2008-04-04 Stefan Monnier <monnier@iro.umontreal.ca>
* undo.c (last_boundary_buffer, last_boundary_position): New vars.
(Fundo_boundary): Set them.
(syms_of_undo): Initialize them.
(record_point): Use them instead of last_point_position*.
(last_undo_buffer): Change type.
2008-04-04 Jason Rumney <jasonr@gnu.org>
* w32uniscribe.c (uniscribe_check_otf): Fix last change.
(uniscribe_check_otf): Add GC protection before consing.
(uniscribe_check_otf): Add GC protection before consing.
Rearrange loop for counting features.
2008-04-03 Stefan Monnier <monnier@iro.umontreal.ca>
@ -52,7 +60,7 @@
Handle :otf spec for uniscribe backend.
(add_font_entity_to_list): Match truetype fonts in uniscribe backend.
(fill_in_logfont): Use DEFAULT_CHARSET when charset not supplied.
* w32fns.c (Fx_create_frame): Conditionally register uniscribe
font backend.
(globals_of_w32fns): Initialize uniscribe font backend.

63
src/undo.c
View File

@ -38,7 +38,12 @@ Lisp_Object Vundo_outer_limit;
Lisp_Object Vundo_outer_limit_function;
/* Last buffer for which undo information was recorded. */
Lisp_Object last_undo_buffer;
/* BEWARE: This is not traced by the GC, so never dereference it! */
struct buffer *last_undo_buffer;
/* Position of point last time we inserted a boundary. */
struct buffer *last_boundary_buffer;
EMACS_INT last_boundary_position;
Lisp_Object Qinhibit_read_only;
@ -68,11 +73,7 @@ record_point (pt)
{
int at_boundary;
/* Don't record position of pt when undo_inhibit_record_point holds.
Needed to avoid inserting a position record in buffer-undo-list
when last_point_position has not been set up correctly by
command_loop_1, for example, when running a repeat-repeat-char
event. */
/* Don't record position of pt when undo_inhibit_record_point holds. */
if (undo_inhibit_record_point)
return;
@ -80,10 +81,9 @@ record_point (pt)
if (NILP (pending_boundary))
pending_boundary = Fcons (Qnil, Qnil);
if (!BUFFERP (last_undo_buffer)
|| current_buffer != XBUFFER (last_undo_buffer))
if (current_buffer != last_undo_buffer)
Fundo_boundary ();
XSETBUFFER (last_undo_buffer, current_buffer);
last_undo_buffer = current_buffer;
if (CONSP (current_buffer->undo_list))
{
@ -113,19 +113,10 @@ record_point (pt)
/* If we are just after an undo boundary, and
point wasn't at start of deleted range, record where it was. */
if (at_boundary
&& BUFFERP (last_point_position_buffer)
/* If we're called from batch mode, this could be nil. */
&& current_buffer == XBUFFER (last_point_position_buffer))
{
/* If we have switched windows, use the point value
from the window we are in. */
if (! EQ (last_point_position_window, selected_window))
last_point_position = marker_position (XWINDOW (selected_window)->pointm);
if (last_point_position != pt)
current_buffer->undo_list
= Fcons (make_number (last_point_position), current_buffer->undo_list);
}
&& current_buffer == last_boundary_buffer
&& last_boundary_position != pt)
current_buffer->undo_list
= Fcons (make_number (last_boundary_position), current_buffer->undo_list);
}
/* Record an insertion that just happened or is about to happen,
@ -211,10 +202,9 @@ record_marker_adjustment (marker, adjustment)
if (NILP (pending_boundary))
pending_boundary = Fcons (Qnil, Qnil);
if (!BUFFERP (last_undo_buffer)
|| current_buffer != XBUFFER (last_undo_buffer))
if (current_buffer != last_undo_buffer)
Fundo_boundary ();
XSETBUFFER (last_undo_buffer, current_buffer);
last_undo_buffer = current_buffer;
current_buffer->undo_list
= Fcons (Fcons (marker, make_number (adjustment)),
@ -246,10 +236,9 @@ record_first_change ()
if (EQ (current_buffer->undo_list, Qt))
return;
if (!BUFFERP (last_undo_buffer)
|| current_buffer != XBUFFER (last_undo_buffer))
if (current_buffer != last_undo_buffer)
Fundo_boundary ();
XSETBUFFER (last_undo_buffer, current_buffer);
last_undo_buffer = current_buffer;
if (base_buffer->base_buffer)
base_buffer = base_buffer->base_buffer;
@ -268,22 +257,22 @@ record_property_change (beg, length, prop, value, buffer)
Lisp_Object prop, value, buffer;
{
Lisp_Object lbeg, lend, entry;
struct buffer *obuf = current_buffer;
struct buffer *obuf = current_buffer, *buf = XBUFFER (buffer);
int boundary = 0;
if (EQ (XBUFFER (buffer)->undo_list, Qt))
if (EQ (buf->undo_list, Qt))
return;
/* Allocate a cons cell to be the undo boundary after this command. */
if (NILP (pending_boundary))
pending_boundary = Fcons (Qnil, Qnil);
if (!EQ (buffer, last_undo_buffer))
if (buf != last_undo_buffer)
boundary = 1;
last_undo_buffer = buffer;
last_undo_buffer = buf;
/* Switch temporarily to the buffer that was changed. */
current_buffer = XBUFFER (buffer);
current_buffer = buf;
if (boundary)
Fundo_boundary ();
@ -323,6 +312,8 @@ but another undo command will undo to the previous boundary. */)
else
current_buffer->undo_list = Fcons (Qnil, current_buffer->undo_list);
}
last_boundary_position = PT;
last_boundary_buffer = current_buffer;
return Qnil;
}
@ -398,7 +389,8 @@ truncate_undo_list (b)
&& size_so_far > XINT (Vundo_outer_limit)
&& !NILP (Vundo_outer_limit_function))
{
Lisp_Object temp = last_undo_buffer, tem;
Lisp_Object tem;
struct buffer *temp = last_undo_buffer;
/* Normally the function this calls is undo-outer-limit-truncate. */
tem = call1 (Vundo_outer_limit_function, make_number (size_so_far));
@ -679,6 +671,9 @@ syms_of_undo ()
pending_boundary = Qnil;
staticpro (&pending_boundary);
last_undo_buffer = NULL;
last_boundary_buffer = NULL;
defsubr (&Sprimitive_undo);
defsubr (&Sundo_boundary);