/* Buffer manipulation primitives for GNU Emacs.
- Copyright (C) 1985,86,87,88,89,93,94,95,97,98, 1999, 2000, 2001, 2002
+ Copyright (C) 1985,86,87,88,89,93,94,95,97,98, 1999, 2000, 2001, 02, 2003
Free Software Foundation, Inc.
This file is part of GNU Emacs.
#endif
#ifndef MAXPATHLEN
-/* in 4.1, param.h fails to define this. */
+/* in 4.1 [probably SunOS? -stef] , param.h fails to define this. */
#define MAXPATHLEN 1024
#endif /* not MAXPATHLEN */
/* List of functions to call that can query about killing a buffer.
If any of these functions returns nil, we don't kill it. */
Lisp_Object Vkill_buffer_query_functions;
+Lisp_Object Qkill_buffer_query_functions;
/* List of functions to call before changing an unmodified buffer. */
Lisp_Object Vfirst_change_hook;
Lisp_Object Qfirst_change_hook;
Lisp_Object Qbefore_change_functions;
Lisp_Object Qafter_change_functions;
+Lisp_Object Qucs_set_table_for_input;
/* If nonzero, all modification hooks are suppressed. */
int inhibit_modification_hooks;
static void alloc_buffer_text P_ ((struct buffer *, size_t));
static void free_buffer_text P_ ((struct buffer *b));
-static Lisp_Object copy_overlays P_ ((struct buffer *, Lisp_Object));
-static void modify_overlay P_ ((struct buffer *, int, int));
+static struct Lisp_Overlay * copy_overlays P_ ((struct buffer *, struct Lisp_Overlay *));
+static void modify_overlay P_ ((struct buffer *, EMACS_INT, EMACS_INT));
extern char * emacs_strerror P_ ((int));
Lisp_Object spec;
{
if (STRINGP (spec))
- error ("No buffer named %s", XSTRING (spec)->data);
+ error ("No buffer named %s", SDATA (spec));
error ("Invalid buffer argument");
}
\f
DEFUN ("buffer-list", Fbuffer_list, Sbuffer_list, 0, 1, 0,
doc: /* Return a list of all existing live buffers.
-If the optional arg FRAME is a frame, we return that frame's buffer list. */)
+If the optional arg FRAME is a frame, we return the buffer list
+in the proper order for that frame: the buffers in FRAME's `buffer-list'
+frame parameter come first, followed by the rest of the buffers. */)
(frame)
Lisp_Object frame;
{
Lisp_Object list;
{
register Lisp_Object tail;
- for (tail = list; !NILP (tail); tail = Fcdr (tail))
+ for (tail = list; CONSP (tail); tail = XCDR (tail))
{
register Lisp_Object elt, tem;
- elt = Fcar (tail);
+ elt = XCAR (tail);
tem = Fstring_equal (Fcar (elt), key);
if (!NILP (tem))
return elt;
if (!NILP (buf))
return buf;
- if (XSTRING (name)->size == 0)
+ if (SCHARS (name) == 0)
error ("Empty string for buffer name is not allowed");
b = (struct buffer *) allocate_buffer ();
if (! BUF_BEG_ADDR (b))
buffer_memory_full ();
- BUF_PT (b) = 1;
- BUF_GPT (b) = 1;
- BUF_BEGV (b) = 1;
- BUF_ZV (b) = 1;
- BUF_Z (b) = 1;
- BUF_PT_BYTE (b) = 1;
- BUF_GPT_BYTE (b) = 1;
- BUF_BEGV_BYTE (b) = 1;
- BUF_ZV_BYTE (b) = 1;
- BUF_Z_BYTE (b) = 1;
+ BUF_PT (b) = BEG;
+ BUF_GPT (b) = BEG;
+ BUF_BEGV (b) = BEG;
+ BUF_ZV (b) = BEG;
+ BUF_Z (b) = BEG;
+ BUF_PT_BYTE (b) = BEG_BYTE;
+ BUF_GPT_BYTE (b) = BEG_BYTE;
+ BUF_BEGV_BYTE (b) = BEG_BYTE;
+ BUF_ZV_BYTE (b) = BEG_BYTE;
+ BUF_Z_BYTE (b) = BEG_BYTE;
BUF_MODIFF (b) = 1;
BUF_OVERLAY_MODIFF (b) = 1;
BUF_SAVE_MODIFF (b) = 1;
b->zv_marker = Qnil;
name = Fcopy_sequence (name);
- XSTRING (name)->intervals = NULL_INTERVAL;
+ STRING_SET_INTERVALS (name, NULL_INTERVAL);
b->name = name;
- if (XSTRING (name)->data[0] != ' ')
+ if (SREF (name, 0) != ' ')
b->undo_list = Qnil;
else
b->undo_list = Qt;
reset_buffer (b);
reset_buffer_local_variables (b, 1);
+ b->mark = Fmake_marker ();
+ BUF_MARKERS (b) = NULL;
+ b->name = name;
+
/* Put this in the alist of all live buffers. */
XSETBUFFER (buf, b);
Vbuffer_alist = nconc2 (Vbuffer_alist, Fcons (Fcons (name, buf), Qnil));
- b->mark = Fmake_marker ();
- BUF_MARKERS (b) = Qnil;
- b->name = name;
+ /* An error in calling the function here (should someone redfine it)
+ can lead to infinite regress until you run out of stack. rms
+ says that's not worth protecting against. */
+ if (!NILP (Ffboundp (Qucs_set_table_for_input)))
+ /* buf is on buffer-alist, so no gcpro. */
+ call1 (Qucs_set_table_for_input, buf);
+
return buf;
}
/* Return a list of overlays which is a copy of the overlay list
LIST, but for buffer B. */
-static Lisp_Object
+static struct Lisp_Overlay *
copy_overlays (b, list)
struct buffer *b;
- Lisp_Object list;
+ struct Lisp_Overlay *list;
{
- Lisp_Object result, buffer;
+ Lisp_Object buffer;
+ struct Lisp_Overlay *result = NULL, *tail = NULL;
XSETBUFFER (buffer, b);
- for (result = Qnil; CONSP (list); list = XCDR (list))
+ for (; list; list = list->next)
{
Lisp_Object overlay, start, end, old_overlay;
- int charpos;
+ EMACS_INT charpos;
- old_overlay = XCAR (list);
+ XSETMISC (old_overlay, list);
charpos = marker_position (OVERLAY_START (old_overlay));
start = Fmake_marker ();
Fset_marker (start, make_number (charpos), buffer);
OVERLAY_START (overlay) = start;
OVERLAY_END (overlay) = end;
OVERLAY_PLIST (overlay) = Fcopy_sequence (OVERLAY_PLIST (old_overlay));
-
- result = Fcons (overlay, result);
+ XOVERLAY (overlay)->next = NULL;
+
+ if (tail)
+ tail = tail->next = XOVERLAY (overlay);
+ else
+ result = tail = XOVERLAY (overlay);
}
- return Fnreverse (result);
+ return result;
}
-
+
/* Clone per-buffer values of buffer FROM.
int offset;
XSETBUFFER (to_buffer, to);
-
+
for (offset = PER_BUFFER_VAR_OFFSET (name) + sizeof (Lisp_Object);
offset < sizeof *to;
offset += sizeof (Lisp_Object))
}
bcopy (from->local_flags, to->local_flags, sizeof to->local_flags);
-
+
to->overlays_before = copy_overlays (to, from->overlays_before);
to->overlays_after = copy_overlays (to, from->overlays_after);
}
buf = Fget_buffer (name);
if (!NILP (buf))
- error ("Buffer name `%s' is in use", XSTRING (name)->data);
+ error ("Buffer name `%s' is in use", SDATA (name));
base_buffer = Fget_buffer (base_buffer);
if (NILP (base_buffer))
- error ("No such buffer: `%s'", XSTRING (name)->data);
+ error ("No such buffer: `%s'", SDATA (name));
- if (XSTRING (name)->size == 0)
+ if (SCHARS (name) == 0)
error ("Empty string for buffer name is not allowed");
b = (struct buffer *) allocate_buffer ();
all_buffers = b;
name = Fcopy_sequence (name);
- XSTRING (name)->intervals = NULL_INTERVAL;
+ STRING_SET_INTERVALS (name, NULL_INTERVAL);
b->name = name;
reset_buffer (b);
return buf;
}
+void
+delete_all_overlays (b)
+ struct buffer *b;
+{
+ Lisp_Object overlay;
+
+ /* `reset_buffer' blindly sets the list of overlays to NULL, so we
+ have to empty the list, otherwise we end up with overlays that
+ think they belong to this buffer while the buffer doesn't know about
+ them any more. */
+ while (b->overlays_before)
+ {
+ XSETMISC (overlay, b->overlays_before);
+ Fdelete_overlay (overlay);
+ }
+ while (b->overlays_after)
+ {
+ XSETMISC (overlay, b->overlays_after);
+ Fdelete_overlay (overlay);
+ }
+ eassert (b->overlays_before == NULL);
+ eassert (b->overlays_after == NULL);
+}
+
/* Reinitialize everything about a buffer except its name and contents
- and local variables. */
+ and local variables.
+ If called on an already-initialized buffer, the list of overlays
+ should be deleted before calling this function, otherwise we end up
+ with overlays that claim to belong to the buffer but the buffer
+ claims it doesn't belong to it. */
void
reset_buffer (b)
b->auto_save_failure_time = -1;
b->auto_save_file_name = Qnil;
b->read_only = Qnil;
- b->overlays_before = Qnil;
- b->overlays_after = Qnil;
- XSETFASTINT (b->overlay_center, 1);
+ b->overlays_before = NULL;
+ b->overlays_after = NULL;
+ b->overlay_center = BEG;
b->mark_active = Qnil;
b->point_before_scroll = Qnil;
b->file_format = Qnil;
We ignore it here. */
b->major_mode = Qfundamental_mode;
b->keymap = Qnil;
- b->abbrev_table = Vfundamental_mode_abbrev_table;
b->mode_name = QSFundamental;
b->minor_modes = Qnil;
b->buffer_file_type = Qnil;
#endif
-#if 0
- b->sort_table = XSTRING (Vascii_sort_table);
- b->folding_sort_table = XSTRING (Vascii_folding_sort_table);
-#endif /* 0 */
-
/* Reset all (or most) per-buffer variables to their defaults. */
b->local_var_alist = Qnil;
for (i = 0; i < last_per_buffer_idx; ++i)
}
DEFUN ("buffer-local-value", Fbuffer_local_value,
- Sbuffer_local_value, 2, 2, 0,
+ Sbuffer_local_value, 2, 2, 0,
doc: /* Return the value of VARIABLE in BUFFER.
If VARIABLE does not have a buffer-local binding in BUFFER, the value
is the default binding of variable. */)
/* Look in local_var_list */
result = Fassoc (symbol, buf->local_var_alist);
- if (NILP (result))
+ if (NILP (result))
{
int offset, idx;
int found = 0;
{
idx = PER_BUFFER_IDX (offset);
if ((idx == -1 || PER_BUFFER_VALUE_P (buf, idx))
- && SYMBOLP (PER_BUFFER_SYMBOL (offset))
- && EQ (PER_BUFFER_SYMBOL (offset), symbol))
+ && SYMBOLP (PER_BUFFER_SYMBOL (offset))
+ && EQ (PER_BUFFER_SYMBOL (offset), symbol))
{
result = PER_BUFFER_VALUE (buf, offset);
found = 1;
result = Fdefault_value (symbol);
}
else
- result = XCDR (result);
+ {
+ Lisp_Object valcontents;
+ Lisp_Object current_alist_element;
+
+ /* What binding is loaded right now? */
+ valcontents = SYMBOL_VALUE (symbol);
+ current_alist_element
+ = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
+
+ /* The value of the currently loaded binding is not
+ stored in it, but rather in the realvalue slot.
+ Store that value into the binding it belongs to
+ in case that is the one we are about to use. */
+
+ Fsetcdr (current_alist_element,
+ do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue));
+
+ /* Now get the (perhaps updated) value out of the binding. */
+ result = XCDR (result);
+ }
if (EQ (result, Qunbound))
return Fsignal (Qvoid_variable, Fcons (symbol, Qnil));
#endif /* CLASH_DETECTION */
SAVE_MODIFF = NILP (flag) ? MODIFF : 0;
-
+
/* Set update_mode_lines only if buffer is displayed in some window.
Packages like jit-lock or lazy-lock preserve a buffer's modified
state by recording/restoring the state around blocks of code.
++update_mode_lines;
current_buffer->prevent_redisplay_optimizations_p = 1;
}
-
+
return flag;
}
{
#ifdef CLASH_DETECTION
Lisp_Object fn;
-
+
/* If buffer becoming modified, lock the file.
If buffer becoming unmodified, unlock the file. */
unlock_file (fn);
}
#endif /* CLASH_DETECTION */
-
+
SAVE_MODIFF = NILP (flag) ? MODIFF : 0;
return flag;
}
CHECK_STRING (newname);
- if (XSTRING (newname)->size == 0)
+ if (SCHARS (newname) == 0)
error ("Empty string is invalid as a buffer name");
tem = Fget_buffer (newname);
if (!NILP (unique))
newname = Fgenerate_new_buffer_name (newname, current_buffer->name);
else
- error ("Buffer name `%s' is in use", XSTRING (newname)->data);
+ error ("Buffer name `%s' is in use", SDATA (newname));
}
current_buffer->name = newname;
/* Consider buffers that have been seen in the selected frame
before other buffers. */
-
+
tem = frame_buffer_list (frame);
add_ons = Qnil;
while (CONSP (tem))
}
tail = nconc2 (Fnreverse (add_ons), tail);
- for (; !NILP (tail); tail = Fcdr (tail))
+ for (; CONSP (tail); tail = XCDR (tail))
{
- buf = Fcdr (Fcar (tail));
+ buf = Fcdr (XCAR (tail));
if (EQ (buf, buffer))
continue;
- if (XSTRING (XBUFFER (buf)->name)->data[0] == ' ')
+ if (SREF (XBUFFER (buf)->name, 0) == ' ')
continue;
/* If the selected frame has a buffer_predicate,
disregard buffers that don't fit the predicate. */
&& BUF_MODIFF (b) > BUF_SAVE_MODIFF (b))
{
GCPRO1 (buf);
- tem = do_yes_or_no_p (format1 ("Buffer %s modified; kill anyway? ",
- XSTRING (b->name)->data));
+ tem = do_yes_or_no_p (format2 ("Buffer %s modified; kill anyway? ",
+ b->name, make_number (0)));
UNGCPRO;
if (NILP (tem))
return Qnil;
/* Run hooks with the buffer to be killed the current buffer. */
{
- int count = specpdl_ptr - specpdl;
- Lisp_Object list;
+ int count = SPECPDL_INDEX ();
+ Lisp_Object arglist[1];
record_unwind_protect (save_excursion_restore, save_excursion_save ());
set_buffer_internal (b);
/* First run the query functions; if any query is answered no,
don't kill the buffer. */
- for (list = Vkill_buffer_query_functions; !NILP (list); list = Fcdr (list))
- {
- tem = call0 (Fcar (list));
- if (NILP (tem))
- return unbind_to (count, Qnil);
- }
+ arglist[0] = Qkill_buffer_query_functions;
+ if (NILP (Frun_hook_with_args_until_failure (1, arglist)))
+ return unbind_to (count, Qnil);
/* Then run the hooks. */
Frun_hooks (1, &Qkill_buffer_hook);
UNGCPRO;
}
-
+
/* Make this buffer not be current.
In the process, notice if this is the sole visible buffer
and give up if so. */
#endif /* CLASH_DETECTION */
kill_buffer_processes (buf);
+ clear_charpos_cache (b);
tem = Vinhibit_quit;
Vinhibit_quit = Qt;
/* Unchain all markers that belong to this indirect buffer.
Don't unchain the markers that belong to the base buffer
or its other indirect buffers. */
- for (tem = BUF_MARKERS (b); !NILP (tem); )
+ for (m = BUF_MARKERS (b); m; )
{
- Lisp_Object next;
- m = XMARKER (tem);
- next = m->chain;
+ struct Lisp_Marker *next = m->next;
if (m->buffer == b)
- unchain_marker (tem);
- tem = next;
+ unchain_marker (m);
+ m = next;
}
}
else
{
/* Unchain all markers of this buffer and its indirect buffers.
and leave them pointing nowhere. */
- for (tem = BUF_MARKERS (b); !NILP (tem); )
+ for (m = BUF_MARKERS (b); m; )
{
- m = XMARKER (tem);
+ struct Lisp_Marker *next = m->next;
m->buffer = 0;
- tem = m->chain;
- m->chain = Qnil;
+ m->next = NULL;
+ m = next;
}
- BUF_MARKERS (b) = Qnil;
+ BUF_MARKERS (b) = NULL;
BUF_INTERVALS (b) = NULL_INTERVAL;
/* Perhaps we should explicitly free the interval tree here... */
Vbuffer_alist = XCDR (Vbuffer_alist);
else
XSETCDR (prev, XCDR (XCDR (prev)));
-
+
XSETCDR (link, Vbuffer_alist);
Vbuffer_alist = link;
XCDR (frame_buffer_list (frame)));
else
XSETCDR (prev, XCDR (XCDR (prev)));
-
+
XSETCDR (link, frame_buffer_list (frame));
set_frame_buffer_list (frame, link);
}
Lisp_Object function;
if (STRINGP (XBUFFER (buffer)->name)
- && strcmp (XSTRING (XBUFFER (buffer)->name)->data, "*scratch*") == 0)
+ && strcmp (SDATA (XBUFFER (buffer)->name), "*scratch*") == 0)
function = find_symbol_value (intern ("initial-major-mode"));
else
{
&& NILP (Fget (current_buffer->major_mode, Qmode_class)))
function = current_buffer->major_mode;
}
-
+
if (NILP (function) || EQ (function, Qfundamental_mode))
return Qnil;
- count = specpdl_ptr - specpdl;
+ count = SPECPDL_INDEX ();
/* To select a nonfundamental mode,
select the buffer temporarily and then call the mode function. */
if (EQ (minibuf_window, window))
return "Cannot switch buffers in minibuffer window";
tem = Fwindow_dedicated_p (window);
- if (!NILP (tem))
+ if (EQ (tem, Qt))
return "Cannot switch buffers in a dedicated window";
return NULL;
}
Fset_window_buffer (EQ (selected_window, minibuf_window)
? Fnext_window (minibuf_window, Qnil, Qnil)
: selected_window,
- buf);
+ buf, Qnil);
return buf;
}
{
char *err;
+ if (EQ (buffer, Fwindow_buffer (selected_window)))
+ /* Basically a NOP. Avoid signalling an error if the selected window
+ is dedicated, or a minibuffer, ... */
+ return Fset_buffer (buffer);
+
err = no_switch_window (selected_window);
if (err) error (err);
}
Fset_buffer (buf);
if (NILP (norecord))
- /* This seems bogus since Fselect_window will call record_buffer anyway. */
+ /* Why bother ? Fselect_window will do it for us anyway. -stef */
record_buffer (buf);
- Fselect_window (Fdisplay_buffer (buf, other_window, Qnil));
+ Fselect_window (Fdisplay_buffer (buf, other_window, Qnil), norecord);
return buf;
}
if (b->text->beg == NULL)
enlarge_buffer_text (b, 0);
#endif /* USE_MMAP_FOR_BUFFERS */
-
+
if (current_buffer == b)
return;
/* Look down buffer's list of local Lisp variables
to find and update any that forward into C variables. */
- for (tail = b->local_var_alist; !NILP (tail); tail = XCDR (tail))
+ for (tail = b->local_var_alist; CONSP (tail); tail = XCDR (tail))
{
valcontents = SYMBOL_VALUE (XCAR (XCAR (tail)));
if ((BUFFER_LOCAL_VALUEP (valcontents)
/* Do the same with any others that were local to the previous buffer */
if (old_buf)
- for (tail = old_buf->local_var_alist; !NILP (tail); tail = XCDR (tail))
+ for (tail = old_buf->local_var_alist; CONSP (tail); tail = XCDR (tail))
{
valcontents = SYMBOL_VALUE (XCAR (XCAR (tail)));
if ((BUFFER_LOCAL_VALUEP (valcontents)
else
{
Lisp_Object buf1;
-
+
buf1 = Fget_buffer (buffer);
if (NILP (buf1))
nsberror (buffer);
XSETCDR (link, Qnil);
Vbuffer_alist = nconc2 (Vbuffer_alist, link);
- frames_bury_buffer (buffer);
+ /* Removing BUFFER from frame-specific lists
+ has the effect of putting BUFFER at the end
+ of the combined list in each frame. */
+ frames_discard_buffer (buffer);
}
return Qnil;
if (byte_pos == BEG)
/* Beginning of buffer is always a character boundary. */
- return 1;
+ return BEG;
c = FETCH_BYTE (byte_pos);
if (! CHAR_HEAD_P (c))
return byte_pos;
}
-
-/* Symbols used as the 2nd arg of Fset_buffer_multibyte. */
-static Lisp_Object Qas, Qmake, Qto;
-
-
DEFUN ("set-buffer-multibyte", Fset_buffer_multibyte, Sset_buffer_multibyte,
- 1, 2, 0,
+ 1, 1, 0,
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 unibyte buffer.
-
-Optional second arg METHOD specifies how to convert the byte sequence
-of the buffer.
-
-If it is nil or `as', the buffer contents remain unchanged as a
-sequence of bytes but the contents viewed as characters do change.
-
-If it is `make', convert each character by unibyte-char-to-multibyte
-or multibyte-char-to-unibyte.
-
-If it is `to', convert each character by byte-to-char or
-char-to-byte. */)
- (flag, method)
- Lisp_Object flag, method;
+If FLAG is nil, this makes the buffer a single-byte buffer.
+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. */)
+ (flag)
+ Lisp_Object flag;
{
- Lisp_Object tail, markers;
+ struct Lisp_Marker *tail, *markers;
struct buffer *other;
int undo_enabled_p = !EQ (current_buffer->undo_list, Qt);
- int begv = BEGV, zv = ZV;
- int narrowed = (BEG != begv || Z != zv);
+ int begv, zv;
+ int narrowed = (BEG != BEGV || Z != ZV);
int modified_p = !NILP (Fbuffer_modified_p (Qnil));
- CHECK_SYMBOL (method);
- if (NILP (method))
- method = Qas;
- else if (! EQ (method, Qas) && ! EQ (method, Qmake) && ! EQ (method, Qto))
- error ("Invalid unibyte<->multibyte conversion method: %s",
- XSYMBOL (method)->name->data);
-
if (current_buffer->base_buffer)
error ("Cannot do `set-buffer-multibyte' on an indirect buffer");
/* If the cached position is for this buffer, clear it out. */
clear_charpos_cache (current_buffer);
+ if (NILP (flag))
+ begv = BEGV_BYTE, zv = ZV_BYTE;
+ else
+ begv = BEGV, zv = ZV;
+
if (narrowed)
Fwiden ();
GPT = GPT_BYTE;
TEMP_SET_PT_BOTH (PT_BYTE, PT_BYTE);
- tail = BUF_MARKERS (current_buffer);
- while (! NILP (tail))
- {
- XMARKER (tail)->charpos = XMARKER (tail)->bytepos;
- tail = XMARKER (tail)->chain;
- }
+
+ for (tail = BUF_MARKERS (current_buffer); tail; tail = tail->next)
+ tail->charpos = tail->bytepos;
/* Convert multibyte form of 8-bit characters to unibyte. */
pos = BEG;
zv -= bytes;
stop = Z;
}
- else if (EQ (method, Qas))
+ else
{
bytes = BYTES_BY_CHAR_HEAD (*p);
p += bytes, pos += bytes;
}
- else
- {
- /* Delete all bytes for this character but the last one,
- and change the last one to the unibyte code. */
- c = STRING_CHAR_AND_LENGTH (p, stop - pos, bytes);
- bytes--;
- del_range_2 (pos, pos, pos + bytes, pos + bytes, 0);
- p = GAP_END_ADDR;
- *p++ = CHAR_TO_BYTE (c);
- pos++;
- if (begv > pos)
- begv -= bytes;
- if (zv > pos)
- zv -= bytes;
- stop = Z;
- }
}
if (narrowed)
Fnarrow_to_region (make_number (begv), make_number (zv));
Ex: We change this: "...abc\302 _GAP_ \241def..."
to: "...abc _GAP_ \302\241def..." */
- if (EQ (method, Qas)
+ if (EQ (flag, Qt)
&& GPT_BYTE > 1 && GPT_BYTE < Z_BYTE
&& ! CHAR_HEAD_P (*(GAP_END_ADDR)))
{
pend = Z_ADDR;
stop = Z;
}
-
+
if (ASCII_BYTE_P (*p))
p++, pos++;
- else if (EQ (method, Qas)
- && (bytes = MULTIBYTE_LENGTH (p, pend)) > 0)
+ else if (EQ (flag, Qt) && (bytes = MULTIBYTE_LENGTH (p, pend)) > 0)
p += bytes, pos += bytes;
else
{
unsigned char tmp[MAX_MULTIBYTE_LENGTH];
int c;
- if (EQ (method, Qmake))
- c = unibyte_char_to_multibyte (*p);
- else
- c = BYTE8_TO_CHAR (*p);
-
+ c = BYTE8_TO_CHAR (*p);
bytes = CHAR_STRING (c, tmp);
*p = tmp[0];
TEMP_SET_PT_BOTH (pos + 1, pos + 1);
/* This prevents BYTE_TO_CHAR (that is, buf_bytepos_to_charpos) from
getting confused by the markers that have not yet been updated.
It is also a signal that it should never create a marker. */
- BUF_MARKERS (current_buffer) = Qnil;
+ BUF_MARKERS (current_buffer) = NULL;
- while (! NILP (tail))
+ for (; tail; tail = tail->next)
{
- XMARKER (tail)->bytepos
- = advance_to_char_boundary (XMARKER (tail)->bytepos);
- XMARKER (tail)->charpos = BYTE_TO_CHAR (XMARKER (tail)->bytepos);
-
- tail = XMARKER (tail)->chain;
+ tail->bytepos = advance_to_char_boundary (tail->bytepos);
+ tail->charpos = BYTE_TO_CHAR (tail->bytepos);
}
/* Make sure no markers were put on the chain
while the chain value was incorrect. */
- if (! EQ (BUF_MARKERS (current_buffer), Qnil))
+ if (BUF_MARKERS (current_buffer))
abort ();
BUF_MARKERS (current_buffer) = markers;
if (!modified_p && !NILP (Fbuffer_modified_p (Qnil)))
Fset_buffer_modified_p (Qnil);
+#ifdef subprocesses
+ /* Update coding systems of this buffer's process (if any). */
+ {
+ Lisp_Object process;
+
+ process = Fget_buffer_process (Fcurrent_buffer ());
+ if (PROCESSP (process))
+ setup_process_coding_systems (process);
+ }
+#endif /* subprocesses */
+
return flag;
}
\f
/* Any which are supposed to be permanent,
make local again, with the same values they had. */
-
+
for (alist = oalist; !NILP (alist); alist = XCDR (alist))
{
sym = XCAR (XCAR (alist));
}
\f
/* Find all the overlays in the current buffer that contain position POS.
- Return the number found, and store them in a vector in *VEC_PTR.
+ Return the number found, and store them in a vector in *VEC_PTR.
Store in *LEN_PTR the size allocated for the vector.
Store in *NEXT_PTR the next position after POS where an overlay starts,
or ZV if there are no more overlays.
int
overlays_at (pos, extend, vec_ptr, len_ptr, next_ptr, prev_ptr, change_req)
- int pos;
+ EMACS_INT pos;
int extend;
Lisp_Object **vec_ptr;
int *len_ptr;
int *prev_ptr;
int change_req;
{
- Lisp_Object tail, overlay, start, end;
+ Lisp_Object overlay, start, end;
+ struct Lisp_Overlay *tail;
int idx = 0;
int len = *len_ptr;
Lisp_Object *vec = *vec_ptr;
int prev = BEGV;
int inhibit_storing = 0;
- for (tail = current_buffer->overlays_before;
- GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
{
int startpos, endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
start = OVERLAY_START (overlay);
end = OVERLAY_END (overlay);
next = startpos;
}
- for (tail = current_buffer->overlays_after;
- GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
{
int startpos, endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
start = OVERLAY_START (overlay);
end = OVERLAY_END (overlay);
{
if (extend)
{
- *len_ptr = len *= 2;
+ /* Make it work with an initial len == 0. */
+ len *= 2;
if (len == 0)
- len = *len_ptr = 4;
+ len = 4;
+ *len_ptr = len;
vec = (Lisp_Object *) xrealloc (vec, len * sizeof (Lisp_Object));
*vec_ptr = vec;
}
/* Find all the overlays in the current buffer that overlap the range BEG-END
or are empty at BEG.
- Return the number found, and store them in a vector in *VEC_PTR.
+ Return the number found, and store them in a vector in *VEC_PTR.
Store in *LEN_PTR the size allocated for the vector.
Store in *NEXT_PTR the next position after POS where an overlay starts,
or ZV if there are no more overlays.
and we store only as many overlays as will fit.
But we still return the total number of overlays. */
-int
+static int
overlays_in (beg, end, extend, vec_ptr, len_ptr, next_ptr, prev_ptr)
int beg, end;
int extend;
int *next_ptr;
int *prev_ptr;
{
- Lisp_Object tail, overlay, ostart, oend;
+ Lisp_Object overlay, ostart, oend;
+ struct Lisp_Overlay *tail;
int idx = 0;
int len = *len_ptr;
Lisp_Object *vec = *vec_ptr;
int prev = BEGV;
int inhibit_storing = 0;
- for (tail = current_buffer->overlays_before;
- GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
{
int startpos, endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
ostart = OVERLAY_START (overlay);
oend = OVERLAY_END (overlay);
Either make it bigger, or don't store any more in it. */
if (extend)
{
- *len_ptr = len *= 2;
+ /* Make it work with an initial len == 0. */
+ len *= 2;
+ if (len == 0)
+ len = 4;
+ *len_ptr = len;
vec = (Lisp_Object *) xrealloc (vec, len * sizeof (Lisp_Object));
*vec_ptr = vec;
}
next = startpos;
}
- for (tail = current_buffer->overlays_after;
- GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
{
int startpos, endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
ostart = OVERLAY_START (overlay);
oend = OVERLAY_END (overlay);
{
if (extend)
{
- *len_ptr = len *= 2;
+ /* Make it work with an initial len == 0. */
+ len *= 2;
+ if (len == 0)
+ len = 4;
+ *len_ptr = len;
vec = (Lisp_Object *) xrealloc (vec, len * sizeof (Lisp_Object));
*vec_ptr = vec;
}
int end = OVERLAY_POSITION (OVERLAY_END (overlay));
int n, i, size;
Lisp_Object *v, tem;
-
+
size = 10;
v = (Lisp_Object *) alloca (size * sizeof *v);
n = overlays_in (start, end, 0, &v, &size, NULL, NULL);
overlay_touches_p (pos)
int pos;
{
- Lisp_Object tail, overlay;
+ Lisp_Object overlay;
+ struct Lisp_Overlay *tail;
- for (tail = current_buffer->overlays_before; GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
{
int endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay ,tail);
if (!GC_OVERLAYP (overlay))
abort ();
return 1;
}
- for (tail = current_buffer->overlays_after; GC_CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
{
int startpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
if (!GC_OVERLAYP (overlay))
abort ();
ssl->used++;
if (NILP (current_buffer->enable_multibyte_characters))
- nbytes = XSTRING (str)->size;
+ nbytes = SCHARS (str);
else if (! STRING_MULTIBYTE (str))
- nbytes = count_size_as_multibyte (XSTRING (str)->data,
- STRING_BYTES (XSTRING (str)));
+ nbytes = count_size_as_multibyte (SDATA (str),
+ SBYTES (str));
else
- nbytes = STRING_BYTES (XSTRING (str));
+ nbytes = SBYTES (str);
ssl->bytes += nbytes;
if (STRINGP (str2))
{
if (NILP (current_buffer->enable_multibyte_characters))
- nbytes = XSTRING (str2)->size;
+ nbytes = SCHARS (str2);
else if (! STRING_MULTIBYTE (str2))
- nbytes = count_size_as_multibyte (XSTRING (str2)->data,
- STRING_BYTES (XSTRING (str2)));
+ nbytes = count_size_as_multibyte (SDATA (str2),
+ SBYTES (str2));
else
- nbytes = STRING_BYTES (XSTRING (str2));
+ nbytes = SBYTES (str2);
ssl->bytes += nbytes;
}
int
overlay_strings (pos, w, pstr)
- int pos;
+ EMACS_INT pos;
struct window *w;
unsigned char **pstr;
{
- Lisp_Object ov, overlay, window, str;
+ Lisp_Object overlay, window, str;
+ struct Lisp_Overlay *ov;
int startpos, endpos;
int multibyte = ! NILP (current_buffer->enable_multibyte_characters);
overlay_heads.used = overlay_heads.bytes = 0;
overlay_tails.used = overlay_tails.bytes = 0;
- for (ov = current_buffer->overlays_before; CONSP (ov); ov = XCDR (ov))
+ for (ov = current_buffer->overlays_before; ov; ov = ov->next)
{
- overlay = XCAR (ov);
- if (!OVERLAYP (overlay))
- abort ();
+ XSETMISC (overlay, ov);
+ eassert (OVERLAYP (overlay));
startpos = OVERLAY_POSITION (OVERLAY_START (overlay));
endpos = OVERLAY_POSITION (OVERLAY_END (overlay));
Foverlay_get (overlay, Qpriority),
endpos - startpos);
}
- for (ov = current_buffer->overlays_after; CONSP (ov); ov = XCDR (ov))
+ for (ov = current_buffer->overlays_after; ov; ov = ov->next)
{
- overlay = XCAR (ov);
- if (!OVERLAYP (overlay))
- abort ();
+ XSETMISC (overlay, ov);
+ eassert (OVERLAYP (overlay));
startpos = OVERLAY_POSITION (OVERLAY_START (overlay));
endpos = OVERLAY_POSITION (OVERLAY_END (overlay));
{
int nbytes;
tem = overlay_tails.buf[i].string;
- nbytes = copy_text (XSTRING (tem)->data, p,
- STRING_BYTES (XSTRING (tem)),
+ nbytes = copy_text (SDATA (tem), p,
+ SBYTES (tem),
STRING_MULTIBYTE (tem), multibyte);
p += nbytes;
}
{
int nbytes;
tem = overlay_heads.buf[i].string;
- nbytes = copy_text (XSTRING (tem)->data, p,
- STRING_BYTES (XSTRING (tem)),
+ nbytes = copy_text (SDATA (tem), p,
+ SBYTES (tem),
STRING_MULTIBYTE (tem), multibyte);
p += nbytes;
tem = overlay_heads.buf[i].string2;
if (STRINGP (tem))
{
- nbytes = copy_text (XSTRING (tem)->data, p,
- STRING_BYTES (XSTRING (tem)),
+ nbytes = copy_text (SDATA (tem), p,
+ SBYTES (tem),
STRING_MULTIBYTE (tem), multibyte);
p += nbytes;
}
void
recenter_overlay_lists (buf, pos)
struct buffer *buf;
- int pos;
+ EMACS_INT pos;
{
- Lisp_Object overlay, tail, next, prev, beg, end;
+ Lisp_Object overlay, beg, end;
+ struct Lisp_Overlay *prev, *tail, *next;
/* See if anything in overlays_before should move to overlays_after. */
/* We don't strictly need prev in this loop; it should always be nil.
But we use it for symmetry and in case that should cease to be true
with some future change. */
- prev = Qnil;
- for (tail = buf->overlays_before;
- CONSP (tail);
- prev = tail, tail = next)
+ prev = NULL;
+ for (tail = buf->overlays_before; tail; prev = tail, tail = next)
{
- next = XCDR (tail);
- overlay = XCAR (tail);
+ next = tail->next;
+ XSETMISC (overlay, tail);
/* If the overlay is not valid, get rid of it. */
if (!OVERLAY_VALID (overlay))
{
/* OVERLAY needs to be moved. */
int where = OVERLAY_POSITION (beg);
- Lisp_Object other, other_prev;
+ struct Lisp_Overlay *other, *other_prev;
/* Splice the cons cell TAIL out of overlays_before. */
- if (!NILP (prev))
- XSETCDR (prev, next);
+ if (prev)
+ prev->next = next;
else
buf->overlays_before = next;
/* Search thru overlays_after for where to put it. */
- other_prev = Qnil;
- for (other = buf->overlays_after;
- CONSP (other);
- other_prev = other, other = XCDR (other))
+ other_prev = NULL;
+ for (other = buf->overlays_after; other;
+ other_prev = other, other = other->next)
{
Lisp_Object otherbeg, otheroverlay;
- otheroverlay = XCAR (other);
- if (! OVERLAY_VALID (otheroverlay))
- abort ();
+ XSETMISC (otheroverlay, other);
+ eassert (OVERLAY_VALID (otheroverlay));
otherbeg = OVERLAY_START (otheroverlay);
if (OVERLAY_POSITION (otherbeg) >= where)
}
/* Add TAIL to overlays_after before OTHER. */
- XSETCDR (tail, other);
- if (!NILP (other_prev))
- XSETCDR (other_prev, tail);
+ tail->next = other;
+ if (other_prev)
+ other_prev->next = tail;
else
buf->overlays_after = tail;
tail = prev;
}
/* See if anything in overlays_after should be in overlays_before. */
- prev = Qnil;
- for (tail = buf->overlays_after;
- CONSP (tail);
- prev = tail, tail = next)
+ prev = NULL;
+ for (tail = buf->overlays_after; tail; prev = tail, tail = next)
{
- next = XCDR (tail);
- overlay = XCAR (tail);
+ next = tail->next;
+ XSETMISC (overlay, tail);
/* If the overlay is not valid, get rid of it. */
if (!OVERLAY_VALID (overlay))
{
/* OVERLAY needs to be moved. */
int where = OVERLAY_POSITION (end);
- Lisp_Object other, other_prev;
+ struct Lisp_Overlay *other, *other_prev;
/* Splice the cons cell TAIL out of overlays_after. */
- if (!NILP (prev))
- XSETCDR (prev, next);
+ if (prev)
+ prev->next = next;
else
buf->overlays_after = next;
/* Search thru overlays_before for where to put it. */
- other_prev = Qnil;
- for (other = buf->overlays_before;
- CONSP (other);
- other_prev = other, other = XCDR (other))
+ other_prev = NULL;
+ for (other = buf->overlays_before; other;
+ other_prev = other, other = other->next)
{
Lisp_Object otherend, otheroverlay;
- otheroverlay = XCAR (other);
- if (! OVERLAY_VALID (otheroverlay))
- abort ();
+ XSETMISC (otheroverlay, other);
+ eassert (OVERLAY_VALID (otheroverlay));
otherend = OVERLAY_END (otheroverlay);
if (OVERLAY_POSITION (otherend) <= where)
}
/* Add TAIL to overlays_before before OTHER. */
- XSETCDR (tail, other);
- if (!NILP (other_prev))
- XSETCDR (other_prev, tail);
+ tail->next = other;
+ if (other_prev)
+ other_prev->next = tail;
else
buf->overlays_before = tail;
tail = prev;
}
}
- XSETFASTINT (buf->overlay_center, pos);
+ buf->overlay_center = pos;
}
void
adjust_overlays_for_insert (pos, length)
- int pos;
- int length;
+ EMACS_INT pos;
+ EMACS_INT length;
{
/* After an insertion, the lists are still sorted properly,
but we may need to update the value of the overlay center. */
- if (XFASTINT (current_buffer->overlay_center) >= pos)
- XSETFASTINT (current_buffer->overlay_center,
- XFASTINT (current_buffer->overlay_center) + length);
+ if (current_buffer->overlay_center >= pos)
+ current_buffer->overlay_center += length;
}
void
adjust_overlays_for_delete (pos, length)
- int pos;
- int length;
+ EMACS_INT pos;
+ EMACS_INT length;
{
- if (XFASTINT (current_buffer->overlay_center) < pos)
+ if (current_buffer->overlay_center < pos)
/* The deletion was to our right. No change needed; the before- and
after-lists are still consistent. */
;
- else if (XFASTINT (current_buffer->overlay_center) > pos + length)
+ else if (current_buffer->overlay_center > pos + length)
/* The deletion was to our left. We need to adjust the center value
to account for the change in position, but the lists are consistent
given the new value. */
- XSETFASTINT (current_buffer->overlay_center,
- XFASTINT (current_buffer->overlay_center) - length);
+ current_buffer->overlay_center -= length;
else
/* We're right in the middle. There might be things on the after-list
that now belong on the before-list. Recentering will move them,
register int start, end;
{
Lisp_Object overlay;
- Lisp_Object before_list, after_list;
- Lisp_Object *ptail, *pbefore = &before_list, *pafter = &after_list;
+ struct Lisp_Overlay *before_list, *after_list;
+ /* These are either nil, indicating that before_list or after_list
+ should be assigned, or the cons cell the cdr of which should be
+ assigned. */
+ struct Lisp_Overlay *beforep = NULL, *afterp = NULL;
+ /* 'Parent', likewise, indicates a cons cell or
+ current_buffer->overlays_before or overlays_after, depending
+ which loop we're in. */
+ struct Lisp_Overlay *tail, *parent;
int startpos, endpos;
/* This algorithm shifts links around instead of consing and GCing.
The loop invariant is that before_list (resp. after_list) is a
- well-formed list except that its last element, the one that
- *pbefore (resp. *pafter) points to, is still uninitialized.
- So it's not a bug that before_list isn't initialized, although
- it may look strange. */
- for (ptail = ¤t_buffer->overlays_before; CONSP (*ptail);)
+ well-formed list except that its last element, the CDR of beforep
+ (resp. afterp) if beforep (afterp) isn't nil or before_list
+ (after_list) if it is, is still uninitialized. So it's not a bug
+ that before_list isn't initialized, although it may look
+ strange. */
+ for (parent = NULL, tail = current_buffer->overlays_before; tail;)
{
- overlay = XCAR (*ptail);
+ XSETMISC (overlay, tail);
endpos = OVERLAY_POSITION (OVERLAY_END (overlay));
if (endpos < start)
break;
}
/* Add it to the end of the wrong list. Later on,
recenter_overlay_lists will move it to the right place. */
- if (endpos < XINT (current_buffer->overlay_center))
+ if (endpos < current_buffer->overlay_center)
{
- *pafter = *ptail;
- pafter = &XCDR (*ptail);
+ if (!afterp)
+ after_list = tail;
+ else
+ afterp->next = tail;
+ afterp = tail;
}
else
{
- *pbefore = *ptail;
- pbefore = &XCDR (*ptail);
+ if (!beforep)
+ before_list = tail;
+ else
+ beforep->next = tail;
+ beforep = tail;
}
- *ptail = XCDR (*ptail);
+ if (!parent)
+ current_buffer->overlays_before = tail->next;
+ else
+ parent->next = tail->next;
+ tail = tail->next;
}
else
- ptail = &XCDR (*ptail);
+ parent = tail, tail = parent->next;
}
- for (ptail = ¤t_buffer->overlays_after; CONSP (*ptail);)
+ for (parent = NULL, tail = current_buffer->overlays_after; tail;)
{
- overlay = XCAR (*ptail);
+ XSETMISC (overlay, tail);
startpos = OVERLAY_POSITION (OVERLAY_START (overlay));
if (startpos >= end)
break;
Qnil);
tem = startpos; startpos = endpos; endpos = tem;
}
- if (endpos < XINT (current_buffer->overlay_center))
+ if (endpos < current_buffer->overlay_center)
{
- *pafter = *ptail;
- pafter = &XCDR (*ptail);
+ if (!afterp)
+ after_list = tail;
+ else
+ afterp->next = tail;
+ afterp = tail;
}
else
{
- *pbefore = *ptail;
- pbefore = &XCDR (*ptail);
+ if (!beforep)
+ before_list = tail;
+ else
+ beforep->next = tail;
+ beforep = tail;
}
- *ptail = XCDR (*ptail);
+ if (!parent)
+ current_buffer->overlays_after = tail->next;
+ else
+ parent->next = tail->next;
+ tail = tail->next;
}
else
- ptail = &XCDR (*ptail);
+ parent = tail, tail = parent->next;
}
/* Splice the constructed (wrong) lists into the buffer's lists,
and let the recenter function make it sane again. */
- *pbefore = current_buffer->overlays_before;
- current_buffer->overlays_before = before_list;
- recenter_overlay_lists (current_buffer,
- XINT (current_buffer->overlay_center));
-
- *pafter = current_buffer->overlays_after;
- current_buffer->overlays_after = after_list;
- recenter_overlay_lists (current_buffer,
- XINT (current_buffer->overlay_center));
+ if (beforep)
+ {
+ beforep->next = current_buffer->overlays_before;
+ current_buffer->overlays_before = before_list;
+ }
+ recenter_overlay_lists (current_buffer, current_buffer->overlay_center);
+
+ if (afterp)
+ {
+ afterp->next = current_buffer->overlays_after;
+ current_buffer->overlays_after = after_list;
+ }
+ recenter_overlay_lists (current_buffer, current_buffer->overlay_center);
}
/* We have two types of overlay: the one whose ending marker is
void
fix_overlays_before (bp, prev, pos)
struct buffer *bp;
- int prev, pos;
+ EMACS_INT prev, pos;
{
- Lisp_Object *tailp = &bp->overlays_before;
- Lisp_Object *right_place;
- int end;
+ /* If parent is nil, replace overlays_before; otherwise, parent->next. */
+ struct Lisp_Overlay *tail = bp->overlays_before, *parent = NULL, *right_pair;
+ Lisp_Object tem;
+ EMACS_INT end;
/* After the insertion, the several overlays may be in incorrect
order. The possibility is that, in the list `overlays_before',
in. It is where an overlay which end before POS exists. (i.e. an
overlay whose ending marker is after-insertion-marker if disorder
exists). */
- while (!NILP (*tailp)
- && ((end = OVERLAY_POSITION (OVERLAY_END (XCAR (*tailp))))
- >= pos))
- tailp = &XCDR (*tailp);
+ while (tail
+ && (XSETMISC (tem, tail),
+ (end = OVERLAY_POSITION (OVERLAY_END (tem))) >= pos))
+ {
+ parent = tail;
+ tail = tail->next;
+ }
/* If we don't find such an overlay,
or the found one ends before PREV,
or the found one is the last one in the list,
we don't have to fix anything. */
- if (NILP (*tailp)
- || end < prev
- || NILP (XCDR (*tailp)))
+ if (!tail || end < prev || !tail->next)
return;
- right_place = tailp;
- tailp = &XCDR (*tailp);
+ right_pair = parent;
+ parent = tail;
+ tail = tail->next;
- /* Now, end position of overlays in the list *TAILP should be before
+ /* Now, end position of overlays in the list TAIL should be before
or equal to PREV. In the loop, an overlay which ends at POS is
- moved ahead to the place pointed by RIGHT_PLACE. If we found an
- overlay which ends before PREV, the remaining overlays are in
- correct order. */
- while (!NILP (*tailp))
+ moved ahead to the place indicated by the CDR of RIGHT_PAIR. If
+ we found an overlay which ends before PREV, the remaining
+ overlays are in correct order. */
+ while (tail)
{
- end = OVERLAY_POSITION (OVERLAY_END (XCAR (*tailp)));
+ XSETMISC (tem, tail);
+ end = OVERLAY_POSITION (OVERLAY_END (tem));
if (end == pos)
{ /* This overlay is disordered. */
- Lisp_Object found = *tailp;
+ struct Lisp_Overlay *found = tail;
/* Unlink the found overlay. */
- *tailp = XCDR (found);
- /* Move an overlay at RIGHT_PLACE to the next of the found one. */
- XCDR (found) = *right_place;
- /* Link it into the right place. */
- *right_place = found;
+ tail = found->next;
+ parent->next = tail;
+ /* Move an overlay at RIGHT_PLACE to the next of the found one,
+ and link it into the right place. */
+ if (!right_pair)
+ {
+ found->next = bp->overlays_before;
+ bp->overlays_before = found;
+ }
+ else
+ {
+ found->next = right_pair->next;
+ right_pair->next = found;
+ }
}
else if (end == prev)
- tailp = &XCDR (*tailp);
+ {
+ parent = tail;
+ tail = tail->next;
+ }
else /* No more disordered overlay. */
break;
}
XOVERLAY (overlay)->start = beg;
XOVERLAY (overlay)->end = end;
XOVERLAY (overlay)->plist = Qnil;
+ XOVERLAY (overlay)->next = NULL;
- /* Put the new overlay on the wrong list. */
+ /* Put the new overlay on the wrong list. */
end = OVERLAY_END (overlay);
- if (OVERLAY_POSITION (end) < XINT (b->overlay_center))
- b->overlays_after = Fcons (overlay, b->overlays_after);
+ if (OVERLAY_POSITION (end) < b->overlay_center)
+ {
+ if (b->overlays_after)
+ XOVERLAY (overlay)->next = b->overlays_after;
+ b->overlays_after = XOVERLAY (overlay);
+ }
else
- b->overlays_before = Fcons (overlay, b->overlays_before);
+ {
+ if (b->overlays_before)
+ XOVERLAY (overlay)->next = b->overlays_before;
+ b->overlays_before = XOVERLAY (overlay);
+ }
/* This puts it in the right list, and in the right order. */
- recenter_overlay_lists (b, XINT (b->overlay_center));
+ recenter_overlay_lists (b, b->overlay_center);
/* We don't need to redisplay the region covered by the overlay, because
the overlay has no properties at the moment. */
static void
modify_overlay (buf, start, end)
struct buffer *buf;
- int start, end;
+ EMACS_INT start, end;
{
if (start > end)
{
}
BUF_COMPUTE_UNCHANGED (buf, start, end);
-
+
/* If this is a buffer not in the selected window,
we must do other windows. */
if (buf != XBUFFER (XWINDOW (selected_window)->buffer))
\f
Lisp_Object Fdelete_overlay ();
+static struct Lisp_Overlay *
+unchain_overlay (list, overlay)
+ struct Lisp_Overlay *list, *overlay;
+{
+ struct Lisp_Overlay *tmp, *prev;
+ for (tmp = list, prev = NULL; tmp; prev = tmp, tmp = tmp->next)
+ if (tmp == overlay)
+ {
+ if (prev)
+ prev->next = tmp->next;
+ else
+ list = tmp->next;
+ overlay->next = NULL;
+ break;
+ }
+ return list;
+}
+
DEFUN ("move-overlay", Fmove_overlay, Smove_overlay, 3, 4, 0,
doc: /* Set the endpoints of OVERLAY to BEG and END in BUFFER.
If BUFFER is omitted, leave OVERLAY in the same buffer it inhabits now.
{
struct buffer *b, *ob;
Lisp_Object obuffer;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
CHECK_OVERLAY (overlay);
if (NILP (buffer))
if (!NILP (obuffer))
{
- ob->overlays_before = Fdelq (overlay, ob->overlays_before);
- ob->overlays_after = Fdelq (overlay, ob->overlays_after);
+ ob->overlays_before
+ = unchain_overlay (ob->overlays_before, XOVERLAY (overlay));
+ ob->overlays_after
+ = unchain_overlay (ob->overlays_after, XOVERLAY (overlay));
+ eassert (XOVERLAY (overlay)->next == NULL);
}
Fset_marker (OVERLAY_START (overlay), beg, buffer);
Fset_marker (OVERLAY_END (overlay), end, buffer);
- /* Put the overlay on the wrong list. */
+ /* Put the overlay on the wrong list. */
end = OVERLAY_END (overlay);
- if (OVERLAY_POSITION (end) < XINT (b->overlay_center))
- b->overlays_after = Fcons (overlay, b->overlays_after);
+ if (OVERLAY_POSITION (end) < b->overlay_center)
+ {
+ XOVERLAY (overlay)->next = b->overlays_after;
+ b->overlays_after = XOVERLAY (overlay);
+ }
else
- b->overlays_before = Fcons (overlay, b->overlays_before);
+ {
+ XOVERLAY (overlay)->next = b->overlays_before;
+ b->overlays_before = XOVERLAY (overlay);
+ }
/* This puts it in the right list, and in the right order. */
- recenter_overlay_lists (b, XINT (b->overlay_center));
+ recenter_overlay_lists (b, b->overlay_center);
return unbind_to (count, overlay);
}
{
Lisp_Object buffer;
struct buffer *b;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
CHECK_OVERLAY (overlay);
b = XBUFFER (buffer);
specbind (Qinhibit_quit, Qt);
-
- b->overlays_before = Fdelq (overlay, b->overlays_before);
- b->overlays_after = Fdelq (overlay, b->overlays_after);
+
+ b->overlays_before = unchain_overlay (b->overlays_before,XOVERLAY (overlay));
+ b->overlays_after = unchain_overlay (b->overlays_after, XOVERLAY (overlay));
+ eassert (XOVERLAY (overlay)->next == NULL);
modify_overlay (b,
marker_position (OVERLAY_START (overlay)),
marker_position (OVERLAY_END (overlay)));
However, the overlays you get are the real objects that the buffer uses. */)
()
{
- Lisp_Object before, after;
- before = current_buffer->overlays_before;
- if (CONSP (before))
- before = Fcopy_sequence (before);
- after = current_buffer->overlays_after;
- if (CONSP (after))
- after = Fcopy_sequence (after);
-
- return Fcons (before, after);
+ struct Lisp_Overlay *ol;
+ Lisp_Object before = Qnil, after = Qnil, tmp;
+ for (ol = current_buffer->overlays_before; ol; ol = ol->next)
+ {
+ XSETMISC (tmp, ol);
+ before = Fcons (tmp, before);
+ }
+ for (ol = current_buffer->overlays_after; ol; ol = ol->next)
+ {
+ XSETMISC (tmp, ol);
+ after = Fcons (tmp, after);
+ }
+ return Fcons (Fnreverse (before), Fnreverse (after));
}
DEFUN ("overlay-recenter", Foverlay_recenter, Soverlay_recenter, 1, 1, 0,
- doc: /* Recenter the overlays of the current buffer around position POS. */)
+ doc: /* Recenter the overlays of the current buffer around position POS.
+That makes overlay lookup faster for positions near POS (but perhaps slower
+for positions far away from POS). */)
(pos)
Lisp_Object pos;
{
(overlay, prop)
Lisp_Object overlay, prop;
{
- Lisp_Object plist, fallback;
-
CHECK_OVERLAY (overlay);
-
- fallback = Qnil;
-
- for (plist = XOVERLAY (overlay)->plist;
- CONSP (plist) && CONSP (XCDR (plist));
- plist = XCDR (XCDR (plist)))
- {
- if (EQ (XCAR (plist), prop))
- return XCAR (XCDR (plist));
- else if (EQ (XCAR (plist), Qcategory))
- {
- Lisp_Object tem;
- tem = Fcar (Fcdr (plist));
- if (SYMBOLP (tem))
- fallback = Fget (tem, prop);
- }
- }
-
- return fallback;
+ return lookup_char_property (XOVERLAY (overlay)->plist, prop, 0);
}
DEFUN ("overlay-put", Foverlay_put, Soverlay_put, 3, 3, 0,
XVECTOR (last_overlay_modification_hooks)->contents,
sizeof (Lisp_Object) * oldsize);
}
- XVECTOR (last_overlay_modification_hooks)->contents[last_overlay_modification_hooks_used++] = functionlist;
- XVECTOR (last_overlay_modification_hooks)->contents[last_overlay_modification_hooks_used++] = overlay;
+ AREF (last_overlay_modification_hooks, last_overlay_modification_hooks_used++) = functionlist;
+ AREF (last_overlay_modification_hooks, last_overlay_modification_hooks_used++) = overlay;
}
\f
/* Run the modification-hooks of overlays that include
int after;
Lisp_Object arg1, arg2, arg3;
{
- Lisp_Object prop, overlay, tail;
+ Lisp_Object prop, overlay;
+ struct Lisp_Overlay *tail;
/* 1 if this change is an insertion. */
int insertion = (after ? XFASTINT (arg3) == 0 : EQ (start, end));
- int tail_copied;
- struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
overlay = Qnil;
- tail = Qnil;
- GCPRO5 (overlay, tail, arg1, arg2, arg3);
-
- if (after)
- {
- /* Call the functions recorded in last_overlay_modification_hooks
- rather than scanning the overlays again.
- First copy the vector contents, in case some of these hooks
- do subsequent modification of the buffer. */
- int size = last_overlay_modification_hooks_used;
- Lisp_Object *copy = (Lisp_Object *) alloca (size * sizeof (Lisp_Object));
- int i;
+ tail = NULL;
- bcopy (XVECTOR (last_overlay_modification_hooks)->contents,
- copy, size * sizeof (Lisp_Object));
- gcpro1.var = copy;
- gcpro1.nvars = size;
+ /* We used to run the functions as soon as we found them and only register
+ them in last_overlay_modification_hooks for the purpose of the `after'
+ case. But running elisp code as we traverse the list of overlays is
+ painful because the list can be modified by the elisp code so we had to
+ copy at several places. We now simply do a read-only traversal that
+ only collects the functions to run and we run them afterwards. It's
+ simpler, especially since all the code was already there. -stef */
- for (i = 0; i < size;)
- {
- Lisp_Object prop, overlay;
- prop = copy[i++];
- overlay = copy[i++];
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
- }
- UNGCPRO;
- return;
- }
-
- /* We are being called before a change.
- Scan the overlays to find the functions to call. */
- last_overlay_modification_hooks_used = 0;
- tail_copied = 0;
- for (tail = current_buffer->overlays_before;
- CONSP (tail);
- tail = XCDR (tail))
+ if (!after)
{
- int startpos, endpos;
- Lisp_Object ostart, oend;
-
- overlay = XCAR (tail);
-
- ostart = OVERLAY_START (overlay);
- oend = OVERLAY_END (overlay);
- endpos = OVERLAY_POSITION (oend);
- if (XFASTINT (start) > endpos)
- break;
- startpos = OVERLAY_POSITION (ostart);
- if (insertion && (XFASTINT (start) == startpos
- || XFASTINT (end) == startpos))
+ /* We are being called before a change.
+ Scan the overlays to find the functions to call. */
+ last_overlay_modification_hooks_used = 0;
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
{
- prop = Foverlay_get (overlay, Qinsert_in_front_hooks);
- if (!NILP (prop))
+ int startpos, endpos;
+ Lisp_Object ostart, oend;
+
+ XSETMISC (overlay, tail);
+
+ ostart = OVERLAY_START (overlay);
+ oend = OVERLAY_END (overlay);
+ endpos = OVERLAY_POSITION (oend);
+ if (XFASTINT (start) > endpos)
+ break;
+ startpos = OVERLAY_POSITION (ostart);
+ if (insertion && (XFASTINT (start) == startpos
+ || XFASTINT (end) == startpos))
{
- /* Copy TAIL in case the hook recenters the overlay lists. */
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qinsert_in_front_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
- }
- if (insertion && (XFASTINT (start) == endpos
- || XFASTINT (end) == endpos))
- {
- prop = Foverlay_get (overlay, Qinsert_behind_hooks);
- if (!NILP (prop))
+ if (insertion && (XFASTINT (start) == endpos
+ || XFASTINT (end) == endpos))
{
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qinsert_behind_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
- }
- /* Test for intersecting intervals. This does the right thing
- for both insertion and deletion. */
- if (XFASTINT (end) > startpos && XFASTINT (start) < endpos)
- {
- prop = Foverlay_get (overlay, Qmodification_hooks);
- if (!NILP (prop))
+ /* Test for intersecting intervals. This does the right thing
+ for both insertion and deletion. */
+ if (XFASTINT (end) > startpos && XFASTINT (start) < endpos)
{
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qmodification_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
}
- }
-
- tail_copied = 0;
- for (tail = current_buffer->overlays_after;
- CONSP (tail);
- tail = XCDR (tail))
- {
- int startpos, endpos;
- Lisp_Object ostart, oend;
-
- overlay = XCAR (tail);
-
- ostart = OVERLAY_START (overlay);
- oend = OVERLAY_END (overlay);
- startpos = OVERLAY_POSITION (ostart);
- endpos = OVERLAY_POSITION (oend);
- if (XFASTINT (end) < startpos)
- break;
- if (insertion && (XFASTINT (start) == startpos
- || XFASTINT (end) == startpos))
+
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
{
- prop = Foverlay_get (overlay, Qinsert_in_front_hooks);
- if (!NILP (prop))
+ int startpos, endpos;
+ Lisp_Object ostart, oend;
+
+ XSETMISC (overlay, tail);
+
+ ostart = OVERLAY_START (overlay);
+ oend = OVERLAY_END (overlay);
+ startpos = OVERLAY_POSITION (ostart);
+ endpos = OVERLAY_POSITION (oend);
+ if (XFASTINT (end) < startpos)
+ break;
+ if (insertion && (XFASTINT (start) == startpos
+ || XFASTINT (end) == startpos))
{
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qinsert_in_front_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
- }
- if (insertion && (XFASTINT (start) == endpos
- || XFASTINT (end) == endpos))
- {
- prop = Foverlay_get (overlay, Qinsert_behind_hooks);
- if (!NILP (prop))
+ if (insertion && (XFASTINT (start) == endpos
+ || XFASTINT (end) == endpos))
{
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qinsert_behind_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
- }
- /* Test for intersecting intervals. This does the right thing
- for both insertion and deletion. */
- if (XFASTINT (end) > startpos && XFASTINT (start) < endpos)
- {
- prop = Foverlay_get (overlay, Qmodification_hooks);
- if (!NILP (prop))
+ /* Test for intersecting intervals. This does the right thing
+ for both insertion and deletion. */
+ if (XFASTINT (end) > startpos && XFASTINT (start) < endpos)
{
- if (!tail_copied)
- tail = Fcopy_sequence (tail);
- tail_copied = 1;
- call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ prop = Foverlay_get (overlay, Qmodification_hooks);
+ if (!NILP (prop))
+ add_overlay_mod_hooklist (prop, overlay);
}
}
}
+ GCPRO4 (overlay, arg1, arg2, arg3);
+ {
+ /* Call the functions recorded in last_overlay_modification_hooks.
+ First copy the vector contents, in case some of these hooks
+ do subsequent modification of the buffer. */
+ int size = last_overlay_modification_hooks_used;
+ Lisp_Object *copy = (Lisp_Object *) alloca (size * sizeof (Lisp_Object));
+ int i;
+
+ bcopy (XVECTOR (last_overlay_modification_hooks)->contents,
+ copy, size * sizeof (Lisp_Object));
+ gcpro1.var = copy;
+ gcpro1.nvars = size;
+
+ for (i = 0; i < size;)
+ {
+ Lisp_Object prop, overlay;
+ prop = copy[i++];
+ overlay = copy[i++];
+ call_overlay_mod_hooks (prop, overlay, after, arg1, arg2, arg3);
+ }
+ }
UNGCPRO;
}
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
GCPRO4 (list, arg1, arg2, arg3);
- if (! after)
- add_overlay_mod_hooklist (list, overlay);
- while (!NILP (list))
+ while (CONSP (list))
{
if (NILP (arg3))
- call4 (Fcar (list), overlay, after ? Qt : Qnil, arg1, arg2);
+ call4 (XCAR (list), overlay, after ? Qt : Qnil, arg1, arg2);
else
- call5 (Fcar (list), overlay, after ? Qt : Qnil, arg1, arg2, arg3);
- list = Fcdr (list);
+ call5 (XCAR (list), overlay, after ? Qt : Qnil, arg1, arg2, arg3);
+ list = XCDR (list);
}
UNGCPRO;
}
property is set. */
void
evaporate_overlays (pos)
- int pos;
+ EMACS_INT pos;
{
- Lisp_Object tail, overlay, hit_list;
+ Lisp_Object overlay, hit_list;
+ struct Lisp_Overlay *tail;
hit_list = Qnil;
- if (pos <= XFASTINT (current_buffer->overlay_center))
- for (tail = current_buffer->overlays_before; CONSP (tail);
- tail = XCDR (tail))
+ if (pos <= current_buffer->overlay_center)
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
{
int endpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
endpos = OVERLAY_POSITION (OVERLAY_END (overlay));
if (endpos < pos)
break;
hit_list = Fcons (overlay, hit_list);
}
else
- for (tail = current_buffer->overlays_after; CONSP (tail);
- tail = XCDR (tail))
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
{
int startpos;
- overlay = XCAR (tail);
+ XSETMISC (overlay, tail);
startpos = OVERLAY_POSITION (OVERLAY_START (overlay));
if (startpos > pos)
break;
{
Lisp_Object sym;
char *type_name;
-
+
switch (XINT (PER_BUFFER_TYPE (offset)))
{
case Lisp_Int:
type_name = "integers";
break;
-
+
case Lisp_String:
type_name = "strings";
break;
-
+
case Lisp_Symbol:
type_name = "symbols";
break;
-
+
default:
abort ();
}
sym = PER_BUFFER_SYMBOL (offset);
error ("Only %s should be stored in the buffer-local variable %s",
- type_name, XSYMBOL (sym)->name->data);
+ type_name, SDATA (SYMBOL_NAME (sym)));
}
\f
#include <fcntl.h>
#endif
+#include "coding.h"
+
/* Memory is allocated in regions which are mapped using mmap(2).
The current implementation lets the system select mapped
{
/* User-specified size. */
size_t nbytes_specified;
-
+
/* Number of bytes mapped */
size_t nbytes_mapped;
#define MEM_ALIGN sizeof (double)
-/* Predicate returning true if part of the address range [START ..
- END[ is currently mapped. Used to prevent overwriting an existing
+/* Predicate returning true if part of the address range [START .. END]
+ is currently mapped. Used to prevent overwriting an existing
memory mapping.
Default is to conservativly assume the address range is occupied by
{
struct mmap_region *r;
char *s = (char *) start, *e = (char *) end;
-
+
for (r = mmap_regions; r; r = r->next)
{
char *rstart = (char *) r;
r->prev->next = r->next;
else
mmap_regions = r->next;
-
+
if (munmap ((POINTER_TYPE *) r, r->nbytes_mapped) == -1)
{
fprintf (stderr, "munmap: %s\n", emacs_strerror (errno));
else if (npages > 0)
{
nbytes = npages * mmap_page_size;
-
+
/* Try to map additional pages at the end of the region. We
cannot do this if the address range is already occupied by
something else because mmap deletes any previous mapping.
if (!MMAP_ALLOCATED_P (region_end, region_end + nbytes))
{
POINTER_TYPE *p;
-
+
p = mmap (region_end, nbytes, PROT_READ | PROT_WRITE,
MAP_ANON | MAP_PRIVATE | MAP_FIXED, mmap_fd, 0);
if (p == MAP_FAILED)
map = ROUND (nbytes + MMAP_REGION_STRUCT_SIZE, mmap_page_size);
p = mmap (NULL, map, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE,
mmap_fd, 0);
-
+
if (p == MAP_FAILED)
{
if (errno != ENOMEM)
else
{
struct mmap_region *r = (struct mmap_region *) p;
-
+
r->nbytes_specified = nbytes;
r->nbytes_mapped = map;
r->var = var;
if (r->next)
r->next->prev = r;
mmap_regions = r;
-
+
p = MMAP_USER_AREA (p);
}
-
+
return *var = p;
}
size_t nbytes;
{
POINTER_TYPE *result;
-
+
mmap_init ();
if (*var == NULL)
result = mmap_alloc (var, nbytes);
- else if (nbytes == 0)
+ else if (nbytes == 0)
{
mmap_free (var);
result = mmap_alloc (var, nbytes);
{
struct mmap_region *r = MMAP_REGION (*var);
size_t room = r->nbytes_mapped - MMAP_REGION_STRUCT_SIZE;
-
+
if (room < nbytes)
{
/* Must enlarge. */
else if (room - nbytes >= mmap_page_size)
{
/* Shrinking by at least a page. Let's give some
- memory back to the system. */
- mmap_enlarge (r, - (room - nbytes) / mmap_page_size);
+ memory back to the system.
+
+ The extra parens are to make the division happens first,
+ on positive values, so we know it will round towards
+ zero. */
+ mmap_enlarge (r, - ((room - nbytes) / mmap_page_size));
result = *var;
r->nbytes_specified = nbytes;
}
POINTER_TYPE **var;
{
mmap_init ();
-
+
if (*var)
{
mmap_free_1 (MMAP_REGION (*var));
if (mmap_initialized_p)
return;
mmap_initialized_p = 1;
-
+
#if MAP_ANON != 0
mmap_fd = -1;
#endif
-
+
mmap_page_size = getpagesize ();
}
size_t nbytes;
{
POINTER_TYPE *p;
-
+
BLOCK_INPUT;
#if defined USE_MMAP_FOR_BUFFERS
p = mmap_alloc ((POINTER_TYPE **) &b->text->beg, nbytes);
#else
p = xmalloc (nbytes);
#endif
-
+
if (p == NULL)
{
UNBLOCK_INPUT;
#else
p = xrealloc (b->text->beg, nbytes);
#endif
-
+
if (p == NULL)
{
UNBLOCK_INPUT;
#else
xfree (b->text->beg);
#endif
-
+
BUF_BEG_ADDR (b) = NULL;
UNBLOCK_INPUT;
}
buffer_defaults.undo_list = Qnil;
buffer_defaults.mark_active = Qnil;
buffer_defaults.file_format = Qnil;
- buffer_defaults.overlays_before = Qnil;
- buffer_defaults.overlays_after = Qnil;
- XSETFASTINT (buffer_defaults.overlay_center, BEG);
+ buffer_defaults.overlays_before = NULL;
+ buffer_defaults.overlays_after = NULL;
+ buffer_defaults.overlay_center = BEG;
XSETFASTINT (buffer_defaults.tab_width, 8);
buffer_defaults.truncate_lines = Qnil;
buffer_defaults.cache_long_line_scans = Qnil;
buffer_defaults.file_truename = Qnil;
XSETFASTINT (buffer_defaults.display_count, 0);
+ XSETFASTINT (buffer_defaults.left_margin_cols, 0);
+ XSETFASTINT (buffer_defaults.right_margin_cols, 0);
+ buffer_defaults.left_fringe_width = Qnil;
+ buffer_defaults.right_fringe_width = Qnil;
+ buffer_defaults.fringes_outside_margins = Qnil;
+ buffer_defaults.scroll_bar_width = Qnil;
+ buffer_defaults.vertical_scroll_bar_type = Qt;
buffer_defaults.indicate_empty_lines = Qnil;
buffer_defaults.scroll_up_aggressively = Qnil;
buffer_defaults.scroll_down_aggressively = Qnil;
XSETFASTINT (buffer_local_flags.cache_long_line_scans, idx); ++idx;
XSETFASTINT (buffer_local_flags.category_table, idx); ++idx;
XSETFASTINT (buffer_local_flags.direction_reversed, idx); ++idx;
- XSETFASTINT (buffer_local_flags.buffer_file_coding_system, idx);
+ XSETFASTINT (buffer_local_flags.buffer_file_coding_system, idx);
/* Make this one a permanent local. */
buffer_permanent_local_flags[idx++] = 1;
- XSETFASTINT (buffer_local_flags.left_margin_width, idx); ++idx;
- XSETFASTINT (buffer_local_flags.right_margin_width, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.left_margin_cols, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.right_margin_cols, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.left_fringe_width, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.right_fringe_width, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.fringes_outside_margins, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.scroll_bar_width, idx); ++idx;
+ XSETFASTINT (buffer_local_flags.vertical_scroll_bar_type, idx); ++idx;
XSETFASTINT (buffer_local_flags.indicate_empty_lines, idx); ++idx;
XSETFASTINT (buffer_local_flags.scroll_up_aggressively, idx); ++idx;
XSETFASTINT (buffer_local_flags.scroll_down_aggressively, idx); ++idx;
if (idx >= MAX_PER_BUFFER_VARS)
abort ();
last_per_buffer_idx = idx;
-
+
Vbuffer_alist = Qnil;
current_buffer = 0;
all_buffers = 0;
Qpermanent_local = intern ("permanent-local");
Qkill_buffer_hook = intern ("kill-buffer-hook");
+ Fput (Qkill_buffer_hook, Qpermanent_local, Qt);
+
+ Qucs_set_table_for_input = intern ("ucs-set-table-for-input");
Vprin1_to_string_buffer = Fget_buffer_create (build_string (" prin1"));
text pointers will have been set to null in the dumped Emacs.
Map new memory. */
struct buffer *b;
-
+
for (b = all_buffers; b; b = b->next)
if (b->text->beg == NULL)
enlarge_buffer_text (b, 0);
}
#endif /* USE_MMAP_FOR_BUFFERS */
-
+
Fset_buffer (Fget_buffer_create (build_string ("*scratch*")));
if (NILP (buffer_defaults.enable_multibyte_characters))
- Fset_buffer_multibyte (Qnil, Qnil);
+ Fset_buffer_multibyte (Qnil);
/* If PWD is accurate, use it instead of calling getwd. PWD is
sometimes a nicer name, and using it may avoid a fatal error if a
because of the ange-ftp completion handler.
However, it is not necessary to turn / into /:/.
So avoid doing that. */
- && strcmp ("/", XSTRING (current_buffer->directory)->data))
+ && strcmp ("/", SDATA (current_buffer->directory)))
current_buffer->directory
= concat2 (build_string ("/:"), current_buffer->directory);
staticpro (&Qbefore_change_functions);
Qafter_change_functions = intern ("after-change-functions");
staticpro (&Qafter_change_functions);
+ staticpro (&Qucs_set_table_for_input);
- Qas = intern ("as");
- staticpro (&Qas);
- Qmake = intern ("make");
- staticpro (&Qmake);
- Qto = intern ("to");
- staticpro (&Qto);
+ Qkill_buffer_query_functions = intern ("kill-buffer-query-functions");
+ staticpro (&Qkill_buffer_query_functions);
Fput (Qprotected_field, Qerror_conditions,
Fcons (Qprotected_field, Fcons (Qerror, Qnil)));
DEFVAR_LISP_NOPRO ("default-direction-reversed",
&buffer_defaults.direction_reversed,
- doc: /* Default value of `direction_reversed' for buffers that do not override it.
+ doc: /* Default value of `direction-reversed' for buffers that do not override it.
This is the same as (default-value 'direction-reversed). */);
-
+
DEFVAR_LISP_NOPRO ("default-enable-multibyte-characters",
&buffer_defaults.enable_multibyte_characters,
doc: /* *Default value of `enable-multibyte-characters' for buffers not overriding it.
This is the same as (default-value 'enable-multibyte-characters). */);
-
+
DEFVAR_LISP_NOPRO ("default-buffer-file-coding-system",
&buffer_defaults.buffer_file_coding_system,
doc: /* Default value of `buffer-file-coding-system' for buffers not overriding it.
This is the same as (default-value 'buffer-file-coding-system). */);
-
+
DEFVAR_LISP_NOPRO ("default-truncate-lines",
&buffer_defaults.truncate_lines,
doc: /* Default value of `truncate-lines' for buffers that do not override it.
This is the same as (default-value 'case-fold-search). */);
#ifdef DOS_NT
- DEFVAR_LISP_NOPRO ("default-buffer-file-type",
+ DEFVAR_LISP_NOPRO ("default-buffer-file-type",
&buffer_defaults.buffer_file_type,
doc: /* Default file type for buffers that do not override it.
This is the same as (default-value 'buffer-file-type).
#endif
DEFVAR_LISP_NOPRO ("default-left-margin-width",
- &buffer_defaults.left_margin_width,
+ &buffer_defaults.left_margin_cols,
doc: /* Default value of `left-margin-width' for buffers that don't override it.
This is the same as (default-value 'left-margin-width). */);
DEFVAR_LISP_NOPRO ("default-right-margin-width",
- &buffer_defaults.right_margin_width,
- doc: /* Default value of `right_margin_width' for buffers that don't override it.
+ &buffer_defaults.right_margin_cols,
+ doc: /* Default value of `right-margin-width' for buffers that don't override it.
This is the same as (default-value 'right-margin-width). */);
-
+
+ DEFVAR_LISP_NOPRO ("default-left-fringe-width",
+ &buffer_defaults.left_fringe_width,
+ doc: /* Default value of `left-fringe-width' for buffers that don't override it.
+This is the same as (default-value 'left-fringe-width). */);
+
+ DEFVAR_LISP_NOPRO ("default-right-fringe-width",
+ &buffer_defaults.right_fringe_width,
+ doc: /* Default value of `right-fringe-width' for buffers that don't override it.
+This is the same as (default-value 'right-fringe-width). */);
+
+ DEFVAR_LISP_NOPRO ("default-fringes-outside-margins",
+ &buffer_defaults.fringes_outside_margins,
+ doc: /* Default value of `fringes-outside-margins' for buffers that don't override it.
+This is the same as (default-value 'fringes-outside-margins). */);
+
+ DEFVAR_LISP_NOPRO ("default-scroll-bar-width",
+ &buffer_defaults.scroll_bar_width,
+ doc: /* Default value of `scroll-bar-width' for buffers that don't override it.
+This is the same as (default-value 'scroll-bar-width). */);
+
+ DEFVAR_LISP_NOPRO ("default-vertical-scroll-bar",
+ &buffer_defaults.vertical_scroll_bar_type,
+ doc: /* Default value of `vertical-scroll-bar' for buffers that don't override it.
+This is the same as (default-value 'vertical-scroll-bar). */);
+
DEFVAR_LISP_NOPRO ("default-indicate-empty-lines",
&buffer_defaults.indicate_empty_lines,
doc: /* Default value of `indicate-empty-lines' for buffers that don't override it.
This is the same as (default-value 'indicate-empty-lines). */);
-
+
DEFVAR_LISP_NOPRO ("default-scroll-up-aggressively",
&buffer_defaults.scroll_up_aggressively,
doc: /* Default value of `scroll-up-aggressively'.
This value applies in buffers that don't have their own local values.
This variable is an alias for (default-value 'scroll-up-aggressively). */);
-
+
DEFVAR_LISP_NOPRO ("default-scroll-down-aggressively",
&buffer_defaults.scroll_down_aggressively,
doc: /* Default value of `scroll-down-aggressively'.
This value applies in buffers that don't have their own local values.
This variable is an alias for (default-value 'scroll-down-aggressively). */);
-
+
DEFVAR_PER_BUFFER ("header-line-format",
¤t_buffer->header_line_format,
Qnil,
doc: /* Analogous to `mode-line-format', but controls the header line.
The header line appears, optionally, at the top of a window;
the mode line appears at the bottom. */);
-
+
DEFVAR_PER_BUFFER ("mode-line-format", ¤t_buffer->mode_line_format,
Qnil,
doc: /* Template for displaying mode line for current buffer.
For a symbol, its value is used (but it is ignored if t or nil).
A string appearing directly as the value of a symbol is processed verbatim
in that the %-constructs below are not recognized.
+ Note that unless the symbol is marked as a `risky-local-variable', all
+ properties in any strings, as well as all :eval and :propertize forms
+ in the value of that symbol will be ignored.
For a list of the form `(:eval FORM)', FORM is evaluated and the result
- is used as a mode line element.
+ is used as a mode line element. Be careful--FORM should not load any files,
+ because that can cause an infinite recursion.
+For a list of the form `(:propertize ELT PROPS...)', ELT is displayed
+ with the specified properties PROPS applied.
For a list whose car is a symbol, the symbol's value is taken,
and if that is non-nil, the cadr of the list is processed recursively.
Otherwise, the caddr of the list (if there is one) is processed.
DEFVAR_PER_BUFFER ("fill-column", ¤t_buffer->fill_column,
make_number (Lisp_Int),
- doc: /* *Column beyond which automatic line-wrapping should happen. */);
+ doc: /* *Column beyond which automatic line-wrapping should happen.
+Interactively, you can set this using \\[set-fill-column]. */);
DEFVAR_PER_BUFFER ("left-margin", ¤t_buffer->left_margin,
make_number (Lisp_Int),
DEFVAR_PER_BUFFER ("enable-multibyte-characters",
¤t_buffer->enable_multibyte_characters,
- make_number (-1),
+ Qnil,
doc: /* Non-nil means the buffer contents are regarded as multi-byte characters.
Otherwise they are regarded as unibyte. This affects the display,
file I/O and the behavior of various editing commands.
Changing its default value with `setq-default' is supported.
See also variable `default-enable-multibyte-characters' and Info node
`(elisp)Text Representations'. */);
+ XSYMBOL (intern ("enable-multibyte-characters"))->constant = 1;
DEFVAR_PER_BUFFER ("buffer-file-coding-system",
¤t_buffer->buffer_file_coding_system, Qnil,
See also the functions `display-table-slot' and `set-display-table-slot'. */);
- DEFVAR_PER_BUFFER ("left-margin-width", ¤t_buffer->left_margin_width,
+ DEFVAR_PER_BUFFER ("left-margin-width", ¤t_buffer->left_margin_cols,
Qnil,
doc: /* *Width of left marginal area for display of a buffer.
A value of nil means no marginal area. */);
-
- DEFVAR_PER_BUFFER ("right-margin-width", ¤t_buffer->right_margin_width,
+
+ DEFVAR_PER_BUFFER ("right-margin-width", ¤t_buffer->right_margin_cols,
Qnil,
doc: /* *Width of right marginal area for display of a buffer.
A value of nil means no marginal area. */);
-
+
+ DEFVAR_PER_BUFFER ("left-fringe-width", ¤t_buffer->left_fringe_width,
+ Qnil,
+ doc: /* *Width of this buffer's left fringe (in pixels).
+A value of 0 means no left fringe is shown in this buffer's window.
+A value of nil means to use the left fringe width from the window's frame. */);
+
+ DEFVAR_PER_BUFFER ("right-fringe-width", ¤t_buffer->right_fringe_width,
+ Qnil,
+ doc: /* *Width of this buffer's right fringe (in pixels).
+A value of 0 means no right fringe is shown in this buffer's window.
+A value of nil means to use the right fringe width from the window's frame. */);
+
+ DEFVAR_PER_BUFFER ("fringes-outside-margins", ¤t_buffer->fringes_outside_margins,
+ Qnil,
+ doc: /* *Non-nil means to display fringes outside display margins.
+A value of nil means to display fringes between margins and buffer text. */);
+
+ DEFVAR_PER_BUFFER ("scroll-bar-width", ¤t_buffer->scroll_bar_width,
+ Qnil,
+ doc: /* *Width of this buffer's scroll bars in pixels.
+A value of nil means to use the scroll bar width from the window's frame. */);
+
+ DEFVAR_PER_BUFFER ("vertical-scroll-bar", ¤t_buffer->vertical_scroll_bar_type,
+ Qnil,
+ doc: /* *Position of this buffer's vertical scroll bar.
+A value of left or right means to place the vertical scroll bar at that side
+of the window; a value of nil means that this window has no vertical scroll bar.
+A value of t means to use the vertical scroll bar type from the window's frame. */);
+
DEFVAR_PER_BUFFER ("indicate-empty-lines",
¤t_buffer->indicate_empty_lines, Qnil,
doc: /* *Visually indicate empty lines after the buffer end.
If non-nil, a bitmap is displayed in the left fringe of a window on
window-systems. */);
-
+
DEFVAR_PER_BUFFER ("scroll-up-aggressively",
¤t_buffer->scroll_up_aggressively, Qnil,
- doc: /* *If a number, scroll display up aggressively.
-If scrolling a window because point is below the window end, choose
-a new window start so that point ends up that fraction of the window's
-height from the bottom of the window. */);
-
+ doc: /* How far to scroll windows upward.
+If you move point off the bottom, the window scrolls automatically.
+This variable controls how far it scrolls. nil, the default,
+means scroll to center point. A fraction means scroll to put point
+that fraction of the window's height from the bottom of the window.
+When the value is 0.0, point goes at the bottom line, which in the simple
+case that you moved off with C-f means scrolling just one line. 1.0 means
+point goes at the top, so that in that simple case, the window
+window scrolls by a full window height. Meaningful values are
+between 0.0 and 1.0, inclusive. */);
+
DEFVAR_PER_BUFFER ("scroll-down-aggressively",
¤t_buffer->scroll_down_aggressively, Qnil,
- doc: /* *If a number, scroll display down aggressively.
-If scrolling a window because point is above the window start, choose
-a new window start so that point ends up that fraction of the window's
-height from the top of the window. */);
-
+ doc: /* How far to scroll windows downward.
+If you move point off the top, the window scrolls automatically.
+This variable controls how far it scrolls. nil, the default,
+means scroll to center point. A fraction means scroll to put point
+that fraction of the window's height from the top of the window.
+When the value is 0.0, point goes at the top line, which in the simple
+case that you moved off with C-b means scrolling just one line. 1.0 means
+point goes at the bottom, so that in that simple case, the window
+window scrolls by a full window height. Meaningful values are
+between 0.0 and 1.0, inclusive. */);
+
/*DEFVAR_LISP ("debug-check-symbol", &Vcheck_symbol,
"Don't ask.");
*/
DEFVAR_PER_BUFFER ("buffer-file-format", ¤t_buffer->file_format, Qnil,
doc: /* List of formats to use when saving this buffer.
Formats are defined by `format-alist'. This variable is
-set when a file is visited. Automatically local in all buffers. */);
+set when a file is visited. */);
DEFVAR_PER_BUFFER ("buffer-invisibility-spec",
¤t_buffer->invisibility_spec, Qnil,
Vinhibit_read_only = Qnil;
DEFVAR_PER_BUFFER ("cursor-type", ¤t_buffer->cursor_type, Qnil,
- doc: /* Cursor to use in window displaying this buffer.
+ doc: /* Cursor to use when this buffer is in the selected window.
Values are interpreted as follows:
- t use the cursor specified for the frame
- nil don't display a cursor
- `bar' display a bar cursor with default width
- (bar . WIDTH) display a bar cursor with width WIDTH
- others display a box cursor. */);
+ t use the cursor specified for the frame
+ nil don't display a cursor
+ bar display a bar cursor with default width
+ (bar . WIDTH) display a bar cursor with width WIDTH
+ ANYTHING ELSE display a box cursor.
+
+When the buffer is displayed in a nonselected window,
+this variable has no effect; the cursor appears as a hollow box. */);
DEFVAR_PER_BUFFER ("line-spacing",
¤t_buffer->extra_line_spacing, Qnil,