it to nil, unless we find the current buffer.
(Flist_buffers): Don't try to set point in the buffer list unless
list_buffers_1 actually returns an integer. Don't use a full
save_excursion; just save and restore the buffer.
any visible frame.
* buffer.c (Fother_buffer): Pass Qt as the second argument
to Fget_buffer_window.
* window.c (window_loop): In GET_BUFFER_WINDOW case, ignore
non-visible frames.
(Fget_buffer_window): Change doc string to mention that passing Qt
for the FRAME argument returns windows on visible frames only.
any visible frame.
* buffer.c (Fother_buffer): Pass Qvisible as the second argument
to Fget_buffer_window.
* window.c (Qvisible): New symbol.
(window_loop): In GET_BUFFER_WINDOW case, if frames is Qvisible,
ignore non-visible frames.
(Fget_buffer_window): Expand doc string to mention that Qvisible
is an interesting value for FRAME argument.
(syms_of_window): Init and staticpro Qvisible.
* lisp.h (Qvisible): New declaration.
BUFFER argument has been omitted, put it in the current buffer,
for symmetry with move-marker.
* buffer.c (Fdelete_overlay): Make the overlay's markers point
nowhere, not at 1. Do this after calling redisplay_region, so
that code knows what section has changed.
(OVERLAYP): New predicate.
(CHECK_OVERLAY): New type-checker.
(Qoverlayp): New extern declaration.
* buffer.c (Foverlayp): New function.
(Qoverlayp): New atom.
(overlays_at, recenter_overlay_lists): Abort if we encounter an
invalid overlay.
(syms_of_buffer): defsubr Soverlayp; initialize Qoverlayp.
(Fdelete_overlay): Set the overlay's markers to point nowhere.
Use CHECK_OVERLAY instead of signalling a special error.
(Fmove_overlay, Foverlay_put): Use CHECK_OVERLAY instead of
signalling a special error.
(Foverlay_get): Use CHECK_OVERLAY.
* fns.c (internal_equal): Define this for overlays.
* buffer.h (OVERLAY_VALID): Define in terms of OVERLAYP.
* print.c (print): Give overlays their own print syntax.
* alloc.c (mark_object): Treat overlays like conses.
* buffer.c (Foverlay_get): Return Qnil if the requested property
is missing from the property list.
* xdisp.c (redisplay_region): New function.
* buffer.c (Fmove_overlay): Call redisplay_region on the areas the
overlay has enclosed or left.
(Fdelete_overlay): Call redisplay_region on the area the overlay
used to occupy.
(Foverlay_put): Call redisplay_region on the area the overlay now
occupies; we may have put a face property on it.
* buffer.c (Fmove_overlay): Doc fix.
* buffer.c (Fmake_overlay, Fmove_overlay): New optional BUFFER
arguments.
(recenter_overlay_lists): New argument BUF, to use instead of the
current buffer.
(Foverlay_recenter): Pass the appropriate arguments to
recenter_overlay_lists.
* buffer.c (Fdelete_overlay): Don't assume that overlay is in the
current buffer. Don't forget to declare the argument a Lisp_Object.
arguments.
(recenter_overlay_lists): New argument BUF, to use instead of the
current buffer.
(Foverlay_recenter): Pass the appropriate arguments to
recenter_overlay_lists.
* buffer.c (Fdelete_overlay): Don't assume that overlay is in the
current buffer. Don't forget to declare the argument a Lisp_Object.
This isn't specific to X, and it allows us to avoid #including
xterm.h in files that don't really have anything to do with X.
* blockinput.h: New file.
* xterm.h (BLOCK_INPUT, UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT,
UNBLOCK_INPUT_RESIGNAL): These are now in blockinput.h.
(x_input_blocked, x_pending_input): Deleted; there are analogs
in blockinput.h called interrupt_input_blocked and
interrupt_input_pending.
* keyboard.c (interrupt_input_blocked, interrupt_input_pending):
New variables, used by the macros in blockinput.h.
* xterm.c: #include blockinput.h.
(x_input_blocked, x_pending_input): Deleted.
(XTread_socket): Test and set interrupt_input_blocked and
interrupt_input_pending instead of the old variables.
* alloc.c, xfaces.c, xfns.c, xmenu.c, xselect.c, keymap.c:
#include blockinput.h.
* eval.c: #include blockinput.h instead of xterm.h.
* keyboard.c: #include blockinput.h.
(input_poll_signal): Just test
interrupt_input_blocked, instead of testing HAVE_X_WINDOWS and
x_input_blocked.
Block the processing of interrupt input while we're manipulating the
malloc heap.
* alloc.c: (xfree): New function, to make it easy to free things
safely.
(xmalloc, xrealloc): Block X input while doing the deed.
(VALIDATE_LISP_STORAGE, gc_sweep, compact_strings): Use xfree
instead of free.
(uninterrupt_malloc): New function, to install input-blocking
hooks into the GNU malloc routines.
* emacs.c [not SYSTEM_MALLOC] (main): Call uninterrupt_malloc
on startup.
* alloc.c: (make_interval, make_float, Fcons, Fmake_vector,
Fmake_symbol, Fmake_marker, make_uninit_string, Fgarbage_collect):
Use xmalloc instead of malloc; don't bother to check if out of
memory here.
(Fgarbage_collect): Call xrealloc instead of realloc.
* buffer.c: Use xmalloc and xfree instead of malloc and free;
don't bother to check if out of memory here.
(Fget_buffer_create): Put BLOCK_INPUT/UNBLOCK_INPUT pair around
calls to ralloc routines.
* insdel.c: Same.
* lisp.h (xfree): New extern declaration.
* xfaces.c (xfree): Don't #define this to be free; use the
definition in alloc.c.
* dispnew.c, doc.c, doprnt.c, fileio.c, lread.c, term.c, xfns.c,
xmenu.c, xterm.c: Use xfree instead of free.
* hftctl.c: Use xfree and xmalloc instead of free and malloc.
* keymap.c (current_minor_maps): BLOCK_INPUT while calling realloc
and malloc.
* search.c: Since the regexp routines can malloc, BLOCK_INPUT
while runing them. #include blockinput.h.
* sysdep.c: #include blockinput.h. Call xfree and xmalloc instead
of free and malloc. BLOCK_INPUT around routines which we know
will call malloc.
ymakefile (keyboard.o, keymap.o, search.o, sysdep.o, xfaces.o,
xfns.o, xmenu.o, xterm.o, xselect.o, alloc.o, eval.o): Note that
these depend on blockinput.h.
wrong feature.
(Qoverwrite_mode_binary): New variable.
(internal_self_insert): If current_buffer->overwrite_mode is
`overwrite-mode-binary', do as overwrite_binary_mode used to.
(syms_of_cmds): Remove defvar of overwrite_binary_mode; initialize
Qoverwrite_mode_binary.
* buffer.c (syms_of_buffer): Doc fix for overwrite_mode.
* buffer.h (struct buffer): Doc fix.
* buffer.c (syms_of_buffer): Add the extra argument to the
commented-out DEFVAR_PER_BUFFER for `mode-line-format', so
make-docfile will find the docstring properly.
arguments to Fnext_window.
* buffer.c (Fbury_buffer): Pass the correct number of arguments to
Fother_buffer.
* buffer.c (buffer_slot_type_mismatch): Make symbol_name an
unsigned char *, to match the type of a string's data.
* buffer.c (Fbury_buffer): Make this behave as in 18.59, although
that behavior is very odd - only remove the buffer from the
selected window if BUFFER was nil or omitted.
buried only if the BUFFER argument was nil. Instead, undisplay the
buffer whenever it's displayed in the selected window, no matter
how it was specified by BUFFER. This is how it behaves in 18.58,
and I can't find any ChangeLog entry in 18.58 or 19.0 saying why
they differ. Fix the doc string accordingly.
