GitLab

 src/xdisp.c (x_write_glyphs, draw_phys_cursor_glyph)
 (erase_phys_cursor, update_window_cursor, show_mouse_face)
 (cursor_in_mouse_face_p): If the cursor position is out of bounds,
 behave as if the cursor position were at the window margin.
 src/window.c (get_phys_cursor_glyph): If the window is hscrolled,
 and the cursor position is out of bounds, behave as if the cursor
 position were at the window margin.

since it is meaningless for live windows like the selected window.

* window.c (Vwindow_splits): Rename to
Vwindow_combination_resize.  Suggested by Juri Linkov.
(Fsplit_window_internal): Use Vwindow_combination_resize instead
of Vwindow_splits.
* window.el (window-resize, delete-window, split-window):
Replace window-splits by window-combination-resize.
* cus-start.el (window-splits): Replace by
window-combination-resize.
* windows.texi (Resizing Windows, Splitting Windows)
(Deleting Windows): Use term window-combination-resize instead
of window-splits.

* window.h (window): Rename slot "nest" to "combination_limit".
* window.c (Fwindow_nest): Rename to Fwindow_combination_limit.
(Fset_window_nest): Rename to Fset_window_combination_limit.
(Vwindow_nest): Rename to Vwindow_combination_limit.
(recombine_windows, make_parent_window, make_window)
(Fsplit_window_internal, saved_window)
(Fset_window_configuration, save_window_save): Rename all
occurrences of window_nest to window_combination_limit.
* window.el (split-window, window-state-get-1)
(window-state-put-1, window-state-put-2): Rename occurrences of
window-nest to window-combination-limit.
* cus-start.el (window-nest): Rename to
window-combination-limit.
* windows.texi (Resizing Windows, Splitting Windows): Rename
occurrences of window-nest to window-combination-limit.

* window.h (window): Remove splits slot.
* window.c (Fwindow_splits, Fset_window_splits): Remove.
(Fdelete_other_windows_internal, make_parent_window)
(make_window, Fsplit_window_internal, Fdelete_window_internal)
(Fset_window_configuration, save_window_save): Don't deal with
split status of windows.
(saved_window): Remove splits slot.
(Vwindow_splits): Rewrite doc-string.
* window.el (window-resize, delete-window): Use window-splits
variable instead of function.
(window-state-get-1, window-state-put-2, window-state-put):
Don't deal with windows' splits status.
* windows.texi (Splitting Windows, Deleting Windows): Remove
references to splits status of windows.

* src/window.c (Fwindow_inside_edges, Fwindow_inside_pixel_edges)
(Fwindow_inside_absolute_pixel_edges): Only allow live windows.

* lisp/window.el (window-total-height, window-total-width): Doc fix.
(window-body-size): Move from C.
(window-body-height, window-body-width): Move to C.

* src/window.c (Fwindow_left_column, Fwindow_top_line): Doc fix.
(Fwindow_body_height, Fwindow_body_width): Move from Lisp.  Signal
an error if not a live window.
(Fwindow_total_width, Fwindow_total_height): Move from Lisp.
(Fwindow_total_size, Fwindow_body_size): Move to Lisp.

* window.h: Declare delete_all_child_windows instead of
delete_all_subwindows.
* window.c (Fwindow_nest, Fset_window_nest)
(Fset_window_new_total, Fset_window_new_normal)
(Fwindow_resize_apply): Don't use term subwindow in doc-strings.
(delete_all_subwindows): Rename to delete_all_child_windows.
(Fdelete_other_windows_internal, Fset_window_configuration):
Call delete_all_child_windows instead of delete_all_subwindows.
* frame.c (delete_frame): Call delete_all_child_windows instead
of delete_all_subwindows.

* window.el (window-combinations): Make WINDOW argument
mandatory.  Rewrite doc-string.
(walk-window-subtree, window-atom-check, window-min-delta)
(window-max-delta, window--resize-this-window)
(window--resize-root-window-vertically, window-tree)
(balance-windows, window-state-put): Rewrite doc-strings as to
not mention the term "subwindow".
(window--resize-subwindows-skip-p): Rename to
window--resize-child-windows-skip-p.
(window--resize-subwindows-normal): Rename to
window--resize-child-windows-normal.
(window--resize-subwindows): Rename to
window--resize-child-windows.
(window-or-subwindow-p): Rename to window--in-subtree-p.

* windows.texi (Resizing Windows, Splitting Windows)
(Window Configurations): Use "child window" instead of
"subwindow".

* lisp/window.el (window-combination-p): Function deleted; its
side-effect is not used in any existing code.
(window-combinations, window-combined-p): Call window-*-child
directly.

* window.c (Fwindow_live_p, Fwindow_frame, Fframe_root_window)
(Fminibuffer_window, Fwindow_buffer, Fwindow_splits)
(Fset_window_splits, Fwindow_nest, Fset_window_nest)
(Fwindow_use_time, Fwindow_total_size, Fwindow_normal_size)
(Fwindow_new_normal, Fwindow_left_column, Fwindow_top_line)
(Fwindow_margins, Fwindow_fringes, Fwindow_scroll_bars)
(Fwindow_vscroll): Doc fix.
(Fwindow_top_child, Fwindow_left_child): Eliminate a nil default
argument, since it makes no sense to pass a live window and for
consistency with window-child.

 src/window.c (Fwindow_body_size): Mention in the doc string that the
 return value is in frame's canonical units.
 lisp/window.el (window-body-height, window-body-width): Mention in
 the doc string that the return values are in frame's canonical
 units.
 doc/lispref/windows.texi (Window Sizes): Mention in the doc string that the
 return values of `window-body-height' and `window-body-width' are
 in frame's canonical units.

* window.c (temp_output_buffer_show): Don't use
Vtemp_buffer_show_specifiers.
(Vtemp_buffer_show_specifiers): Remove unused variable.
* help.el (with-help-window): Don't reference
temp-buffer-show-specifiers in doc-string.

* window.c (coordinates_in_window): Rewrite and delabelize
vertical border check.  (Bug#5357) (Bug#9618)

Minor doc fixes for switch-to-buffer, window-prev-buffers,
set-window-prev-buffers, set-window-next-buffers.

* window.c (Fset_window_prev_buffers, Fset_window_next_buffers):
Operate on live windows only.

* window.el (window-deletable-p): Make sure window is live before
invoking window-prev-buffers.

(window_scroll_line_based, Frecenter):
Check that an Emacs fixnum is in range before assigning it to 'int'.
(Frecenter, Fmove_to_window_line): Use EMACS_INT, not int, for
values converted from Emacs fixnums.
(Frecenter): Don't wrap around a line count if it is out of 'int'
range; instead, treat it as an extreme value.
(Fset_window_configuration, compare_window_configurations):
Use ptrdiff_t, not int, for index that might exceed 2 GiB.

Add diagnostic facility for monitoring memory allocated for cache shelving.

 src/xdisp.c (display_line): Release buffer allocated for shelved bidi
 cache.  (Bug#9221)
 src/bidi.c (bidi_shelve_cache, bidi_unshelve_cache): Track total
 amount allocated this far in `bidi_cache_total_alloc'.
 (bidi_unshelve_cache): Accept an additional argument JUST_FREE; if
 non-zero, only free the data buffer without restoring the cache
 contents.  All callers changed.
 src/dispextern.h (bidi_unshelve_cache): Update prototype.
 src/xdisp.c (SAVE_IT, pos_visible_p, move_it_in_display_line_to)
 (move_it_in_display_line, move_it_to)
 (move_it_vertically_backward, move_it_by_lines): Replace the call
 to xfree to an equivalent call to bidi_unshelve_cache.
 (move_it_in_display_line_to): Fix logic of returning
 MOVE_POS_MATCH_OR_ZV in the bidi case.

* character.c (lisp_string_width):
* composite.c (composition_table_size, n_compositions)
(get_composition_id, composition_gstring_from_id):
* dispextern.h (struct glyph_string.cmp_id, struct composition_it.id):
* xdisp.c (BUILD_COMPOSITE_GLYPH_STRING):
* window.c (Frecenter):
Use ptrdiff_t, not int, for composition IDs.
* composite.c (get_composition_id): Check for integer overflow.
* composite.h: Adjust prototypes to match the above changes.

Fixes: debbugs:4199

Solves crashes due to overflow of bidi cache stack.
Make sure cache is saved and restored around all temporary iterations.

 src/dispnew.c (buffer_posn_from_coords): Save and restore the bidi
 cache around display iteration.
 src/window.c (Fwindow_end, window_scroll_pixel_based)
 (displayed_window_lines, Frecenter): Save and restore the bidi
 cache around display iteration.
 src/bidi.c (bidi_unshelve_cache): Ensure we have enough space before
 restoring the shelved cache.
 (bidi_cache_ensure_space): Don't assume the required size is just
 one BIDI_CACHE_CHUNK away.
 src/xdisp.c (back_to_previous_visible_line_start, reseat_1)
 (init_iterator): Empty the bidi cache "stack".

* window.h (window): Remove clone_number slot.
* window.c (Fwindow_clone_number, Fset_window_clone_number):
Remove.
(make_parent_window, make_window, saved_window)
(Fset_window_configuration, save_window_save): Don't deal with
clone numbers.
* buffer.c (Qclone_number): Remove declaration.
(sort_overlays, overlay_strings): Don't deal with clone numbers.

* window.el (window-state-get-1): Don't assign clone numbers.
Add clone-of item to list of window parameters.
(window-state-put-2): Don't process clone numbers.
(display-buffer-alist): Fix doc-string.

* window.c (resize_root_window, grow_mini_window)
(shrink_mini_window): Rename Qresize_root_window to
Qwindow_resize_root_window and Qresize_root_window_vertically to
Qwindow_resize_root_window_vertically.

* window.el (normalize-live-buffer): Rename to
window-normalize-buffer.
(normalize-live-frame): Rename to window-normalize-frame.
(normalize-any-window): Rename to window-normalize-any-window.
(normalize-live-window): Rename to window-normalize-live-window.
(make-window-atom): Rename to window-make-atom.
(window-resize-reset): Rename to window--resize-reset.
(window-resize-reset-1): Rename to window--resize-reset-1.
(resize-mini-window): Rename to window--resize-mini-window.
(resize-subwindows-skip-p): Rename to
window--resize-subwindows-skip-p.
(resize-subwindows-normal): Rename to
window--resize-subwindows-normal.
(resize-subwindows): Rename to window--resize-subwindows.
(resize-other-windows): Rename to window--resize-siblings.
(resize-this-window): Rename to window--resize-this-window.
(resize-root-window): Rename to window--resize-root-window.
(resize-root-window-vertically): Rename to
window--resize-root-window-vertically.
(normalize-buffer-to-display): Rename to
window-normalize-buffer-to-display.
(normalize-buffer-to-switch-to): Rename to
window-normalize-buffer-to-switch-to.
Correspondingly update all callers of the functions listed
above.
(display-buffer-alist, display-buffer-normalize-arguments)
(display-buffer-normalize-options, display-buffer)
(display-buffer-alist-set): Use "function" instead of
"fun-with-args".

* window.c (resize_window_check): Rename to window_resize_check.
(resize_window_apply): Rename to window_resize_apply.
(Fresize_window_apply): Rename to Fwindow_resize_apply.
(Fdelete_other_windows_internal, resize_frame_windows)
(Fsplit_window_internal, Fdelete_window_internal)
(grow_mini_window, shrink_mini_window)
(Fresize_mini_window_internal): Fix callers accordingly.

* window.el (resize-window-reset): Rename to window-resize-reset.
(resize-window-reset-1): Rename to window-resize-reset-1.
(resize-window): Rename to window-resize.
(window-min-height, window-min-width)
(resize-mini-window, resize-this-window, resize-root-window)
(resize-root-window-vertically, adjust-window-trailing-edge)
(enlarge-window, shrink-window, maximize-window)
(minimize-window, delete-window, quit-restore-window)
(split-window, balance-windows, balance-windows-area-adjust)
(balance-windows-area, window-state-put-2)
(display-buffer-even-window-sizes, display-buffer-set-height)
(display-buffer-set-width, set-window-text-height)
(fit-window-to-buffer): Rename all "resize-window" prefixed
calls to use the "window-resize" prefix convention.
(display-buffer-alist): Fix symbol for label specifier.
(display-buffer-reuse-window): Set reuse-dedicated to cdr of
corresponding specifier.
Reported by Juanma Barranquero <lekktu@gmail.com>.

* window.c (Fwindow_vchild): Rename to Fwindow_top_child.
(Fwindow_hchild): Rename to Fwindow_left_child.
(Fwindow_next): Rename to Fwindow_next_sibling.
(Fwindow_prev): Rename to Fwindow_prev_sibling.

* window.el (window-right, window-left, window-child)
(window-child-count, window-last-child)
(window-iso-combination-p, walk-window-tree-1)
(window-atom-check-1, window-tree-1, delete-window)
(window-state-get-1, display-buffer-even-window-sizes): Adapt to
new naming conventions - window-vchild, window-hchild,
window-next and window-prev are now called window-top-child,
window-left-child, window-next-sibling and window-prev-sibling
respectively.

* frame.c (make_frame): Call other_buffer_safely instead of
other_buffer.

* window.c (temp_output_buffer_show): Call display_buffer with
second argument Vtemp_buffer_show_specifiers and reset latter
immediately after the call.
(Vtemp_buffer_show_specifiers): New variable.
(auto_window_vscroll_p, next_screen_context_lines)
(Vscroll_preserve_screen_position): Remove leading asterisks from
doc-strings.

(record_buffer, Funrecord_buffer): Rename local to avoid shadowing.
(record_buffer): Remove unused local.
* frame.c (other_visible_frames, frame_buffer_list): Now static.
(set_frame_buffer_list): Remove; unused.
* frame.h (other_visible_frames): Remove decl.
* keyboard.h (menu_items_inuse): Declare only if USE_GTK || USE_MOTIF.
* lisp.h (frame_buffer_list, set_frame_buffer_list): Remove decls.
(add_gpm_wait_descriptor, delete_gpm_wait_descriptor): Declare only
if HAVE_GPM.
* menu.c (menu_items_inuse): Now static unless USE_GTK || USE_MOTIF.
* process.c (add_gpm_wait_descriptor, delete_gpm_wait_descriptor):
Define only if HAVE_GPM.
* widget.c (EmacsFrameResize, emacsFrameClassRec): Now static.
(update_hints_inhibit): Remove; never set.  All uses removed.
* widgetprv.h (emacsFrameClassRec): Remove decl.
* window.c (delete_deletable_window): Now returns void, since it
wasn't returning anything.
(compare_window_configurations): Remove unused locals.
* xfns.c (x_set_scroll_bar_default_width): Remove unused locals.
* xmenu.c (x_menu_set_in_use): Define only if USE_GTK || USE_MOTIF.
Omit no-longer-needed #ifdef USE_X_TOOLKIT, since USE_X_TOOLKIT is
implied by USE_GTK || USE_MOTIF.
(dialog_selection_callback) [!USE_GTK]: Prefer intptr_t for integers
the same widths as pointers.  This follows up on the 2011-05-06 patch.
* xterm.c (x_alloc_lighter_color_for_widget): Define only if USE_LUCID.
* xterm.h: Likewise.
(x_menu_set_in_use): Declare only if USE_GTK || USE_MOTIF.

* window.c (delete_deletable_window): Re-add.
(Fset_window_configuration): Rewrite to handle dead buffers and
consequently deletable windows.
(window_tree, Fwindow_tree): Remove.  Supply functionality in
window.el.
(compare_window_configurations): Simplify code.

* window.el (window-tree-1, window-tree): New functions, moving
the latter to window.el.
(bw-get-tree, bw-get-tree-1, bw-find-tree-sub)
(bw-find-tree-sub-1, bw-l, bw-t, bw-r, bw-b, bw-dir, bw-eqdir)
(bw-refresh-edges): Remove.
(balance-windows-1, balance-windows-2): New functions.
(balance-windows): Rewrite in terms of window tree functions,
balance-windows-1 and balance-windows-2.
(bw-adjust-window): Remove.
(balance-windows-area-adjust): New function with functionality of
bw-adjust-window but using resize-window.
(set-window-text-height): Rewrite doc-string.  Use
normalize-live-window and resize-window.
(enlarge-window-horizontally, shrink-window-horizontally): Rename
argument to DELTA.
(window-buffer-height): New function.
(fit-window-to-buffer, shrink-window-if-larger-than-buffer):
Rewrite using new window resize routines.
(kill-buffer-and-window, mouse-autoselect-window-select): Use
ignore-errors instead of condition-case.
(quit-window): Call delete-frame instead of delete-windows-on
for the only buffer on frame.

* buffer.c: New Lisp objects Qbuffer_list_update_hook and
Qclone_number.  Remove external declaration of Qdelete_window.
(Fbuffer_list): Rewrite doc-string.  Minor restructuring of
code.
(Fget_buffer_create, Fmake_indirect_buffer, Frename_buffer): Run
Qbuffer_list_update_hook if allowed.
(Fother_buffer): Rewrite doc-string.  Major rewrite for new
buffer list implementation.
(other_buffer_safely): New function.
(Fkill_buffer): Replace call to replace_buffer_in_all_windows by
calls to replace_buffer_in_windows and
replace_buffer_in_windows_safely.  Run Qbuffer_list_update_hook
if allowed.
(record_buffer): Inhibit quitting and rewrite using quittable
functions.  Run Qbuffer_list_update_hook if allowed.
(Frecord_buffer, Funrecord_buffer): New functions.
(switch_to_buffer_1, Fswitch_to_buffer): Remove.  Move
switch-to-buffer to window.el.
(bury-buffer): Move to window.el.
(Vbuffer_list_update_hook): New variable.

* lisp.h (other_buffer_safely): Add prototype in buffer.c
section.

* window.h (resize_frame_windows): Move up in code.
(Fwindow_frame): Remove EXFUN.
(replace_buffer_in_all_windows): Remove prototype.
(replace_buffer_in_windows_safely): Add prototype.

* window.c: Declare Qdelete_window static again.  Move down
declaration of select_count.
(Fnext_window, Fprevious_window): Rewrite doc-strings.
(Fother_window): Move to window.el.
(window_loop): Remove DELETE_BUFFER_WINDOWS and UNSHOW_BUFFER
cases.  Add REPLACE_BUFFER_IN_WINDOWS_SAFELY case.
(Fdelete_windows_on, Freplace_buffer_in_windows): Move to
window.el.
(replace_buffer_in_windows): Implement by calling
Qreplace_buffer_in_windows.
(replace_buffer_in_all_windows): Remove with some functionality
moved into replace_buffer_in_windows_safely.
(replace_buffer_in_windows_safely): New function.
(select_window_norecord, select_frame_norecord): Move in front
of run_window_configuration_change_hook.  Remove now obsolete
declarations.
(Fset_window_buffer): Rewrite doc-string.  Call
Qrecord_window_buffer.
(keys_of_window): Move binding for other-window to window.el.

* loadup.el (top-level): Load window before files for the sake
of replace-buffer-in-windows.

* files.el (read-buffer-to-switch)
(switch-to-buffer-other-window)
(switch-to-buffer-other-frame, display-buffer-other-frame): Move
to window.el.

* simple.el (get-next-valid-buffer, last-buffer, next-buffer)
(previous-buffer): Move to window.el.

* bindings.el (unbury-buffer): Move to window.el.

* window.el (delete-other-windows-vertically): Move after
definition of delete-other-windows.
(other-window, delete-windows-on, replace-buffer-in-windows):
Move here from window.c.
(record-window-buffer, unrecord-window-buffer)
(set-window-buffer-start-and-point, switch-to-prev-buffer)
(switch-to-next-buffer): New functions.
(get-next-valid-buffer, last-buffer, next-buffer): Move here
from simple.el.  Call switch-to-next-buffer.
(previous-buffer): Move here from simple.el.  Call
switch-to-prev-buffer.
(bury-buffer): Move here from buffer.c.  Switch to previous
buffer when window cannot be deleted.
(unbury-buffer): Move here from bindings.el.
(ctl-x-map): Move binding for other-window from window.c to
here.
(read-buffer-to-switch, switch-to-buffer-other-window)
(switch-to-buffer-other-frame): Move here from files.el.
(normalize-buffer-to-switch-to): New functions.
(switch-to-buffer): Move here from buffer.c.  Use
read-buffer-to-switch and normalize-buffer-to-switch-to.

* data.c (Qcompiled_function, Qframe, Qvector):
* image.c (QimageMagick, Qsvg):
* minibuf.c (Qmetadata):
* window.c (resize_window_check, resize_root_window): Now static.
* window.h (resize_window_check, resize_root_window): Remove decls.

(window_deletion_count, delete_deletable_window): Remove; unused.
(window_body_lines): Now static.
(Fdelete_other_windows_internal): Mark vars as initialized.
Make sure 'resize_failed' is initialized.
(run_window_configuration_change_hook): Rename local to avoid shadowing.
(resize_window_apply): Remove unused local.
* window.h (delete_deletable_window): Remove decl.

 src/window.h (resize_frame_windows, resize_window_check)
 (delete_deletable_window, resize_root_window)
 (resize_frame_windows): Declare prototypes.
 src/ window.c (resize_window_apply): Make definition be "static" to
 match the prototype.

* window.c: Remove declarations of Qwindow_size_fixed,
window_min_size_1, window_min_size_2, window_min_size,
size_window, window_fixed_size_p, enlarge_window, delete_window.
Remove static from declaration of Qdelete_window, it's
temporarily needed by Fbury_buffer.
(replace_window): Don't assign orig_top_line and
orig_total_lines.
(Fdelete_window, delete_window): Remove.  Window deletion is
handled by window.el.
(window_loop): Remove DELETE_OTHER_WINDOWS case.  Replace
Fdelete_window calls with calls to Qdelete_window.
(Fdelete_other_windows): Remove.  Deleting other windows is
handled by window.el.
(window_fixed_size_p): Remove.  Fixed-sizeness of windows is
handled in window.el.
(window_min_size_2, window_min_size_1, window_min_size): Remove.
Window minimum sizes are handled in window.el.
(shrink_windows, size_window, set_window_height)
(set_window_width, change_window_heights, window_height)
(window_width, CURBEG, CURSIZE, enlarge_window)
(adjust_window_trailing_edge, Fadjust_window_trailing_edge)
(Fenlarge_window, Fshrink_window): Remove.  Window resizing is
handled in window.el.
(make_dummy_parent): Rename to make_parent_window and give it a
second argument horflag.
(make_window): Don't set resize_proportionally any more.
(Fsplit_window): Remove.  Windows are split in window.el.
(save_restore_action, save_restore_orig_size)
(shrink_window_lowest_first, save_restore_orig_size): Remove.
Resize mini windows in window.el.
(grow_mini_window, shrink_mini_window): Implement by calling
Qresize_root_window_vertically, resize_window_check and
resize_window_apply.
(saved_window, Fset_window_configuration, save_window_save): Do
not handle orig_top_line, orig_total_lines, and
resize_proportionally.
(window_min_height, window_min_width): Move to window.el.
(keys_of_window): Move bindings for delete-other-windows,
split-window, delete-window and enlarge-window to window.el.

* buffer.c: Temporarily extern Qdelete_window.
(Fbury_buffer): Temporarily call Qdelete_window instead of
Fdelete_window (Fbury_buffer will move to window.el soon).

* frame.c (set_menu_bar_lines_1): Remove code handling
orig_top_line and orig_total_lines.

* dispnew.c (adjust_frame_glyphs_initially): Don't use
set_window_height but set heights directly.
(change_frame_size_1): Use resize_frame_windows.

* xdisp.c (init_xdisp): Don't use set_window_height but set
heights directly.

* xfns.c (x_set_menu_bar_lines, x_set_tool_bar_lines): Use
resize_frame_windows instead of change_window_heights and run
run_window_configuration_change_hook.

* w32fns.c (x_set_tool_bar_lines): Use resize_frame_windows
instead of change_window_heights and run
run_window_configuration_change_hook.

* window.el (window-min-height, window-min-width): Move here
from window.c.  Add defcustoms and rewrite doc-strings.
(resize-mini-window, resize-window): New functions.
(adjust-window-trailing-edge, enlarge-window, shrink-window):
Move here from window.c.
(maximize-window, minimize-window): New functions.
(delete-window, delete-other-windows, split-window): Move here
from window.c.
(window-split-min-size): New function.
(split-window-keep-point): Mention split-window-above-each-other
instead of split-window-vertically.
(split-window-above-each-other, split-window-vertically): Rename
split-window-vertically to split-window-above-each-other and
provide defalias for old definition.
(split-window-side-by-side, split-window-horizontally): Rename
split-window-horizontally to split-window-side-by-side and provide
defalias for the old definition.
(ctl-x-map): Move bindings for delete-window,
delete-other-windows and enlarge-window here from window.c.
Replace bindings for split-window-vertically and
split-window-horizontally by bindings for
split-window-above-each-other and split-window-side-by-side.

* cus-start.el (all): Remove entries for window-min-height and
window-min-width.  Add entries for window-splits and
window-nest.

* window.c (replace_window): Rename second argument REPLACEMENT to
NEW.  New third argument SETFLAG.  Rewrite.
(delete_window, make_dummy_parent): Call replace_window with
third argument 1.
(window_list_1): Move down in code.
(run_window_configuration_change_hook): Move set_buffer part
before select_frame_norecord part in order to unwind correctly.
Rename count1 to count.
(recombine_windows, delete_deletable_window, resize_root_window)
(Fdelete_other_windows_internal)
(Frun_window_configuration_change_hook, make_parent_window)
(resize_window_check, resize_window_apply, Fresize_window_apply)
(resize_frame_windows, Fsplit_window_internal)
(Fdelete_window_internal, Fresize_mini_window_internal): New
functions.
(syms_of_window): New variables Vwindow_splits and Vwindow_nest.