* lisp/delsel.el (delete-selection-helper): Use non-nil
instead of t and clarify function return values (bug#18089).
(cherry picked from commit d7a5b5be9a)
* lisp/delsel.el (delete-selection-mode)
(delete-selection-helper): Update and expand the doc strings.
(Bug#22296)
* doc/emacs/mark.texi (Using Region): Document the behavior of
delete commands in Delete Selection mode. (Bug#22296)
* doc/lispref/markers.texi (The Mark): Document how to add the
support for Delete Selection mode to Lisp programs. (Bug#22296)
Fixes debbugs#21275.
In Emacs >= 25, let electric-pair-mode take precedence over
delete-selection-mode.
delsel.el (delete-selection-uses-region-p): New function, previously a
lambda expression in a property value for `self-insert-command'.
(top-level) Set the `delete-selection' property of `self-insert-command'
to `delete-selection-uses-region-p'.
progmodes/cc-cmds.el (top-level): Give the `delete-selection' property
for c-electric-\(brace\|paren\) the value `delete-selection-uses-region-p'
when the latter function exists.
* lisp/delsel.el (delete-selection-save-to-register)
(delsel--replace-text-or-position): New vars.
(delete-active-region): Use them.
(delete-selection-repeat-replace-region): New command, moved from
cua-base.el.
* lisp/emulation/cua-base.el (cua--repeat-replace-text): Remove var.
(cua-repeat-replace-region): Move command to delsel.el.
(cua--init-keymaps): Update binding accordingly.
(cua-mode): Set delete-selection-save-to-register.
Fixes: debbugs:18886
* lib-src/Makefile.in (regex.o): Remove reference to no-longer-used macros
CONFIG_BROKETS and INHIBIT_STRING_HEADER. "BROKETS" was a
misspelling anyway....
* src/nsterm.h (updateCollectionBehavior): Rename from
updateCollectionBehaviour. All uses changed.
to prevent `kill-region' from changing its original value.
(delete-selection-helper): Handle `overwrite-mode' for the type
`kill' exactly the same way as for the type `t'.
(insert-char, quoted-insert, reindent-then-newline-and-indent):
Support more commands.
Fixes: debbugs:13312
* lisp/rect.el: Use lexical-binding. Add new rectangular region support.
(rectangle-mark): New command.
(rectangle--region): New var.
(deactivate-mark-hook): Reset rectangle--region.
(rectangle--extract-region, rectangle--insert-for-yank)
(rectangle--highlight-for-redisplay)
(rectangle--unhighlight-for-redisplay): New functions.
(region-extract-function, redisplay-unhighlight-region-function)
(redisplay-highlight-region-function): Use them to handle
rectangular region.
* lisp/simple.el (region-extract-function): New var.
(delete-backward-char, delete-forward-char, deactivate-mark): Use it.
(kill-new, kill-append): Remove obsolete `yank-handler' argument.
(kill-region): Replace obsolete `yank-handler' arg with `region'.
(copy-region-as-kill, kill-ring-save): Add `region' argument.
(redisplay-unhighlight-region-function)
(redisplay-highlight-region-function): New vars.
(redisplay--update-region-highlight): New function.
(pre-redisplay-function): Use it.
(exchange-point-and-mark): Don't deactivate the mark before
reactivate-it anyway.
* lisp/comint.el (comint-kill-region): Remove yank-handler argument.
* lisp/delsel.el (delete-backward-char, backward-delete-char-untabify)
(delete-char): Remove property, since it's now part of their
default behavior.
(self-insert-iso): Remove property since this command doesn't exist.
* src/xdisp.c (prepare_menu_bars): Call Vpre_redisplay_function.
(syms_of_xdisp): Declare pre-redisplay-function.
(markpos_of_region): Remove function.
(init_iterator, compute_stop_pos, handle_face_prop)
(face_before_or_after_it_pos, reseat_to_string)
(get_next_display_element, window_buffer_changed)
(redisplay_internal, try_cursor_movement, redisplay_window)
(try_window_reusing_current_matrix, try_window_id, display_line)
(note_mode_line_or_margin_highlight, note_mouse_highlight)
(display_string, mouse_face_from_buffer_pos): Remove region handling.
* src/window.h (struct window): Remove field `region_showing'.
* src/dispextern.h (struct it): Remove region_beg/end_charpos.
(face_at_buffer_position, face_for_overlay_string)
(face_at_string_position): Update prototypes.
* src/xfaces.c (face_at_buffer_position, face_for_overlay_string)
(face_at_string_position): Remove `region_beg' and `region_end' args.
* src/fontset.c (Finternal_char_font):
* src/font.c (font_at, font_range): Adjust calls accordingly.
* src/insdel.c (Qregion_extract_function): New var.
(syms_of_insdel): Initialize it.
(prepare_to_modify_buffer_1): Use it.
* lisp/delsel.el (delete-selection-helper): Use a function instead of a hook.
(delete-selection-pre-hook): Use use-region-p.
(delete-selection-self-insert-function): Remove.
(self-insert-command): Obey self-insert-uses-region-functions.
(self-insert-iso): Revert to previous setting, since we don't actually
know what that command does.
(delete-selection-self-insert-hooks): Remove.
* lisp/electric.el (electric-pair-delete-selection-self-insert-function):
Rename to electric-pair-will-use-region, return a boolean.
(electric-pair-mode): Adjust accordingly. Don't require delsel.
delete-selection-pre-hook.
(delete-selection-pre-hook): Use it.
(delete-selection-self-insert-function): New function.
(delete-selection-self-insert-hooks): New hook.
(self-insert-command, self-insert-iso): Use it.
* lisp/electric.el (electric-pair-syntax): New function, extracted from
electric-pair-post-self-insert-function.
(electric-pair-post-self-insert-function): Use it.
(electric-pair-delete-selection-self-insert-function): New function.
(electric-pair-mode): Require delsel and setup
delete-selection-self-insert-hooks.
Fixes: debbugs:11520
enabled and the current command is self-insert-command, call it
explicitly with overwrite-mode bound to nil, to not allow it
to delete the character after the selected region.
