/* Buffer manipulation primitives for GNU Emacs.
-Copyright (C) 1985-1989, 1993-1995, 1997-2014 Free Software Foundation, Inc.
+Copyright (C) 1985-1989, 1993-1995, 1997-2015 Free Software Foundation,
+Inc.
This file is part of GNU Emacs.
due to user rplac'ing this alist or its elements. */
Lisp_Object Vbuffer_alist;
-static Lisp_Object Qkill_buffer_query_functions;
-
-/* Hook run before changing a major mode. */
-static Lisp_Object Qchange_major_mode_hook;
-
-Lisp_Object Qfirst_change_hook;
-Lisp_Object Qbefore_change_functions;
-Lisp_Object Qafter_change_functions;
-
-static Lisp_Object Qfundamental_mode, Qmode_class, Qpermanent_local;
-static Lisp_Object Qpermanent_local_hook;
-
-static Lisp_Object Qprotected_field;
-
static Lisp_Object QSFundamental; /* A string "Fundamental". */
-static Lisp_Object Qkill_buffer_hook;
-static Lisp_Object Qbuffer_list_update_hook;
-
-static Lisp_Object Qget_file_buffer;
-
-static Lisp_Object Qoverlayp;
-
-Lisp_Object Qpriority, Qbefore_string, Qafter_string;
-
-static Lisp_Object Qevaporate;
-
-Lisp_Object Qmodification_hooks;
-Lisp_Object Qinsert_in_front_hooks;
-Lisp_Object Qinsert_behind_hooks;
-
-Lisp_Object Qchoice, Qrange, Qleft, Qright;
-Lisp_Object Qvertical_scroll_bar, Qhorizontal_scroll_bar;
-static Lisp_Object Qoverwrite_mode, Qfraction;
-
static void alloc_buffer_text (struct buffer *, ptrdiff_t);
static void free_buffer_text (struct buffer *b);
static struct Lisp_Overlay * copy_overlays (struct buffer *, struct Lisp_Overlay *);
if (FRAMEP (frame))
{
Lisp_Object framelist, prevlist, tail;
- Lisp_Object args[3];
framelist = Fcopy_sequence (XFRAME (frame)->buffer_list);
prevlist = Fnreverse (Fcopy_sequence
tail = XCDR (tail);
}
- args[0] = framelist;
- args[1] = general;
- args[2] = prevlist;
- return Fnconc (3, args);
+ return CALLN (Fnconc, framelist, general, prevlist);
}
else
return general;
The buffer is found by scanning the selected or specified frame's buffer
list first, followed by the list of all buffers. If no other buffer
exists, return the buffer `*scratch*' (creating it if necessary). */)
- (register Lisp_Object buffer, Lisp_Object visible_ok, Lisp_Object frame)
+ (Lisp_Object buffer, Lisp_Object visible_ok, Lisp_Object frame)
{
struct frame *f = decode_any_frame (frame);
Lisp_Object tail = f->buffer_list, pred = f->buffer_predicate;
return notsogood;
else
{
- buf = Fget_buffer (build_string ("*scratch*"));
+ AUTO_STRING (scratch, "*scratch*");
+ buf = Fget_buffer (scratch);
if (NILP (buf))
{
- buf = Fget_buffer_create (build_string ("*scratch*"));
+ buf = Fget_buffer_create (scratch);
Fset_buffer_major_mode (buf);
}
return buf;
if (candidate_buffer (buf, buffer))
return buf;
- buf = Fget_buffer (build_string ("*scratch*"));
+ AUTO_STRING (scratch, "*scratch*");
+ buf = Fget_buffer (scratch);
if (NILP (buf))
{
- buf = Fget_buffer_create (build_string ("*scratch*"));
+ buf = Fget_buffer_create (scratch);
Fset_buffer_major_mode (buf);
}
/* Run hooks with the buffer to be killed the current buffer. */
{
ptrdiff_t 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. */
- arglist[0] = Qkill_buffer_query_functions;
- tem = Frun_hook_with_args_until_failure (1, arglist);
+ tem = CALLN (Frun_hook_with_args_until_failure,
+ Qkill_buffer_query_functions);
if (NILP (tem))
return unbind_to (count, Qnil);
return unbind_to (count, Qt);
/* Then run the hooks. */
- Frun_hooks (1, &Qkill_buffer_hook);
+ run_hook (Qkill_buffer_hook);
unbind_to (count, Qnil);
}
}
\f
DEFUN ("barf-if-buffer-read-only", Fbarf_if_buffer_read_only,
- Sbarf_if_buffer_read_only, 0, 0, 0,
- doc: /* Signal a `buffer-read-only' error if the current buffer is read-only. */)
- (void)
+ Sbarf_if_buffer_read_only, 0, 1, 0,
+ doc: /* Signal a `buffer-read-only' error if the current buffer is read-only.
+If the text under POSITION (which defaults to point) has the
+`inhibit-read-only' text property set, the error will not be raised. */)
+ (Lisp_Object pos)
{
+ if (NILP (pos))
+ XSETFASTINT (pos, PT);
+ else
+ CHECK_NUMBER (pos);
+
if (!NILP (BVAR (current_buffer, read_only))
- && NILP (Vinhibit_read_only))
+ && NILP (Vinhibit_read_only)
+ && NILP (Fget_text_property (pos, Qinhibit_read_only, Qnil)))
xsignal1 (Qbuffer_read_only, Fcurrent_buffer ());
return Qnil;
}
the normal hook `change-major-mode-hook'. */)
(void)
{
- Frun_hooks (1, &Qchange_major_mode_hook);
+ run_hook (Qchange_major_mode_hook);
/* Make sure none of the bindings in local_var_alist
remain swapped in, in their symbols. */
memset (buffer_permanent_local_flags, 0, sizeof buffer_permanent_local_flags);
+ /* 0 means not a lisp var, -1 means always local, else mask. */
+ memset (&buffer_local_flags, 0, sizeof buffer_local_flags);
+ bset_filename (&buffer_local_flags, make_number (-1));
+ bset_directory (&buffer_local_flags, make_number (-1));
+ bset_backed_up (&buffer_local_flags, make_number (-1));
+ bset_save_length (&buffer_local_flags, make_number (-1));
+ bset_auto_save_file_name (&buffer_local_flags, make_number (-1));
+ bset_read_only (&buffer_local_flags, make_number (-1));
+ bset_major_mode (&buffer_local_flags, make_number (-1));
+ bset_mode_name (&buffer_local_flags, make_number (-1));
+ bset_undo_list (&buffer_local_flags, make_number (-1));
+ bset_mark_active (&buffer_local_flags, make_number (-1));
+ bset_point_before_scroll (&buffer_local_flags, make_number (-1));
+ bset_file_truename (&buffer_local_flags, make_number (-1));
+ bset_invisibility_spec (&buffer_local_flags, make_number (-1));
+ bset_file_format (&buffer_local_flags, make_number (-1));
+ bset_auto_save_file_format (&buffer_local_flags, make_number (-1));
+ bset_display_count (&buffer_local_flags, make_number (-1));
+ bset_display_time (&buffer_local_flags, make_number (-1));
+ bset_enable_multibyte_characters (&buffer_local_flags, make_number (-1));
+
+ /* These used to be stuck at 0 by default, but now that the all-zero value
+ means Qnil, we have to initialize them explicitly. */
+ bset_name (&buffer_local_flags, make_number (0));
+ bset_mark (&buffer_local_flags, make_number (0));
+ bset_local_var_alist (&buffer_local_flags, make_number (0));
+ bset_keymap (&buffer_local_flags, make_number (0));
+ bset_downcase_table (&buffer_local_flags, make_number (0));
+ bset_upcase_table (&buffer_local_flags, make_number (0));
+ bset_case_canon_table (&buffer_local_flags, make_number (0));
+ bset_case_eqv_table (&buffer_local_flags, make_number (0));
+ bset_minor_modes (&buffer_local_flags, make_number (0));
+ bset_width_table (&buffer_local_flags, make_number (0));
+ bset_pt_marker (&buffer_local_flags, make_number (0));
+ bset_begv_marker (&buffer_local_flags, make_number (0));
+ bset_zv_marker (&buffer_local_flags, make_number (0));
+ bset_last_selected_window (&buffer_local_flags, make_number (0));
+
+ idx = 1;
+ XSETFASTINT (BVAR (&buffer_local_flags, mode_line_format), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, abbrev_mode), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, overwrite_mode), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, case_fold_search), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, auto_fill_function), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, selective_display), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, selective_display_ellipses), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, tab_width), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, truncate_lines), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, word_wrap), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, ctl_arrow), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, fill_column), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, left_margin), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, abbrev_table), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, display_table), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, syntax_table), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, cache_long_scans), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, category_table), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, bidi_display_reordering), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, bidi_paragraph_direction), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, buffer_file_coding_system), idx);
+ /* Make this one a permanent local. */
+ buffer_permanent_local_flags[idx++] = 1;
+ XSETFASTINT (BVAR (&buffer_local_flags, left_margin_cols), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, right_margin_cols), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, left_fringe_width), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, right_fringe_width), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, fringes_outside_margins), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_width), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_height), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, vertical_scroll_bar_type), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, horizontal_scroll_bar_type), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, indicate_empty_lines), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, indicate_buffer_boundaries), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, fringe_indicator_alist), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, fringe_cursor_alist), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, scroll_up_aggressively), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, scroll_down_aggressively), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, header_line_format), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, cursor_type), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, extra_line_spacing), idx); ++idx;
+ XSETFASTINT (BVAR (&buffer_local_flags, cursor_in_non_selected_windows), idx); ++idx;
+
+ /* Need more room? */
+ if (idx >= MAX_PER_BUFFER_VARS)
+ emacs_abort ();
+ last_per_buffer_idx = idx;
+
/* Make sure all markable slots in buffer_defaults
are initialized reasonably, so mark_buffer won't choke. */
reset_buffer (&buffer_defaults);
- eassert (EQ (BVAR (&buffer_defaults, name), make_number (0)));
+ eassert (NILP (BVAR (&buffer_defaults, name)));
reset_buffer_local_variables (&buffer_defaults, 1);
- eassert (EQ (BVAR (&buffer_local_symbols, name), make_number (0)));
+ eassert (NILP (BVAR (&buffer_local_symbols, name)));
reset_buffer (&buffer_local_symbols);
reset_buffer_local_variables (&buffer_local_symbols, 1);
/* Prevent GC from getting confused. */
to say that it has its own local value for the slot.
The local flag bits are in the local_var_flags slot of the buffer. */
- /* Nothing can work if this isn't true */
+ /* Nothing can work if this isn't true. */
{ verify (sizeof (EMACS_INT) == word_size); }
- /* 0 means not a lisp var, -1 means always local, else mask */
- memset (&buffer_local_flags, 0, sizeof buffer_local_flags);
- bset_filename (&buffer_local_flags, make_number (-1));
- bset_directory (&buffer_local_flags, make_number (-1));
- bset_backed_up (&buffer_local_flags, make_number (-1));
- bset_save_length (&buffer_local_flags, make_number (-1));
- bset_auto_save_file_name (&buffer_local_flags, make_number (-1));
- bset_read_only (&buffer_local_flags, make_number (-1));
- bset_major_mode (&buffer_local_flags, make_number (-1));
- bset_mode_name (&buffer_local_flags, make_number (-1));
- bset_undo_list (&buffer_local_flags, make_number (-1));
- bset_mark_active (&buffer_local_flags, make_number (-1));
- bset_point_before_scroll (&buffer_local_flags, make_number (-1));
- bset_file_truename (&buffer_local_flags, make_number (-1));
- bset_invisibility_spec (&buffer_local_flags, make_number (-1));
- bset_file_format (&buffer_local_flags, make_number (-1));
- bset_auto_save_file_format (&buffer_local_flags, make_number (-1));
- bset_display_count (&buffer_local_flags, make_number (-1));
- bset_display_time (&buffer_local_flags, make_number (-1));
- bset_enable_multibyte_characters (&buffer_local_flags, make_number (-1));
-
- idx = 1;
- XSETFASTINT (BVAR (&buffer_local_flags, mode_line_format), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, abbrev_mode), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, overwrite_mode), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, case_fold_search), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, auto_fill_function), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, selective_display), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, selective_display_ellipses), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, tab_width), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, truncate_lines), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, word_wrap), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, ctl_arrow), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, fill_column), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, left_margin), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, abbrev_table), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, display_table), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, syntax_table), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, cache_long_scans), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, category_table), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, bidi_display_reordering), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, bidi_paragraph_direction), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, buffer_file_coding_system), idx);
- /* Make this one a permanent local. */
- buffer_permanent_local_flags[idx++] = 1;
- XSETFASTINT (BVAR (&buffer_local_flags, left_margin_cols), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, right_margin_cols), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, left_fringe_width), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, right_fringe_width), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, fringes_outside_margins), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_width), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, scroll_bar_height), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, vertical_scroll_bar_type), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, horizontal_scroll_bar_type), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, indicate_empty_lines), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, indicate_buffer_boundaries), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, fringe_indicator_alist), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, fringe_cursor_alist), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, scroll_up_aggressively), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, scroll_down_aggressively), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, header_line_format), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, cursor_type), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, extra_line_spacing), idx); ++idx;
- XSETFASTINT (BVAR (&buffer_local_flags, cursor_in_non_selected_windows), idx); ++idx;
-
- /* Need more room? */
- if (idx >= MAX_PER_BUFFER_VARS)
- emacs_abort ();
- last_per_buffer_idx = idx;
-
Vbuffer_alist = Qnil;
current_buffer = 0;
all_buffers = 0;
QSFundamental = build_pure_c_string ("Fundamental");
- Qfundamental_mode = intern_c_string ("fundamental-mode");
+ DEFSYM (Qfundamental_mode, "fundamental-mode");
bset_major_mode (&buffer_defaults, Qfundamental_mode);
- Qmode_class = intern_c_string ("mode-class");
+ DEFSYM (Qmode_class, "mode-class");
+ DEFSYM (Qprotected_field, "protected-field");
- Qprotected_field = intern_c_string ("protected-field");
-
- Qpermanent_local = intern_c_string ("permanent-local");
-
- Qkill_buffer_hook = intern_c_string ("kill-buffer-hook");
+ DEFSYM (Qpermanent_local, "permanent-local");
+ DEFSYM (Qkill_buffer_hook, "kill-buffer-hook");
Fput (Qkill_buffer_hook, Qpermanent_local, Qt);
- /* super-magic invisible buffer */
+ /* Super-magic invisible buffer. */
Vprin1_to_string_buffer = Fget_buffer_create (build_pure_c_string (" prin1"));
Vbuffer_alist = Qnil;
}
#else /* not USE_MMAP_FOR_BUFFERS */
/* Avoid compiler warnings. */
- initialized = initialized;
+ (void) initialized;
#endif /* USE_MMAP_FOR_BUFFERS */
- Fset_buffer (Fget_buffer_create (build_string ("*scratch*")));
+ AUTO_STRING (scratch, "*scratch*");
+ Fset_buffer (Fget_buffer_create (scratch));
if (NILP (BVAR (&buffer_defaults, enable_multibyte_characters)))
Fset_buffer_multibyte (Qnil);
However, it is not necessary to turn / into /:/.
So avoid doing that. */
&& strcmp ("/", SSDATA (BVAR (current_buffer, directory))))
- bset_directory
- (current_buffer,
- concat2 (build_string ("/:"), BVAR (current_buffer, directory)));
+ {
+ AUTO_STRING (slash_colon, "/:");
+ bset_directory (current_buffer,
+ concat2 (slash_colon,
+ BVAR (current_buffer, directory)));
+ }
temp = get_minibuffer (0);
bset_directory (XBUFFER (temp), BVAR (current_buffer, directory));
last_overlay_modification_hooks
= Fmake_vector (make_number (10), Qnil);
- staticpro (&Qfundamental_mode);
- staticpro (&Qmode_class);
staticpro (&QSFundamental);
staticpro (&Vbuffer_alist);
- staticpro (&Qprotected_field);
- staticpro (&Qpermanent_local);
- staticpro (&Qkill_buffer_hook);
+ DEFSYM (Qchoice, "choice");
DEFSYM (Qleft, "left");
DEFSYM (Qright, "right");
DEFSYM (Qrange, "range");
DEFVAR_PER_BUFFER ("scroll-bar-width", &BVAR (current_buffer, scroll_bar_width),
Qintegerp,
- doc: /* Width of this buffer's scroll bars in pixels.
+ doc: /* Width of this buffer's vertical scroll bars in pixels.
A value of nil means to use the scroll bar width from the window's frame. */);
DEFVAR_PER_BUFFER ("scroll-bar-height", &BVAR (current_buffer, scroll_bar_height),
Qintegerp,
- doc: /* Height of this buffer's scroll bars in pixels.
+ doc: /* Height of this buffer's horizontal scroll bars in pixels.
A value of nil means to use the scroll bar height from the window's frame. */);
DEFVAR_PER_BUFFER ("vertical-scroll-bar", &BVAR (current_buffer, vertical_scroll_bar_type),
for instance, with `set-window-buffer' or when `display-buffer' displays it.
A value of `bottom' means put the horizontal scroll bar at the bottom of
-the window; a value of nil means don't show any horizonal scroll bars.
+the window; a value of nil means don't show any horizontal scroll bars.
A value of t (the default) means do whatever the window's frame
specifies. */);
doc: /* List of functions to call after each text change.
Three arguments are passed to each function: the positions of
the beginning and end of the range of changed text,
-and the length in bytes of the pre-change text replaced by that range.
+and the length in chars of the pre-change text replaced by that range.
\(For an insertion, the pre-change length is zero;
-for a deletion, that length is the number of bytes deleted,
+for a deletion, that length is the number of chars deleted,
and the post-change beginning and end are at the same place.)
Buffer changes made while executing the `after-change-functions'