* 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/simple.el (line-move): Call line-move-1 instead of
line-move-visual when the current window hscroll is zero, but
temporary-goal-column indicates we will need to hscroll as result
of the movement.
Ref: http://lists.gnu.org/archive/html/emacs-devel/2010-02/msg00135.html
* lisp/simple.el (messages-buffer-mode): New major mode.
(messages-buffer): New function.
* lisp/startup.el (normal-top-level): Switch mode of *Messages* buffer.
* src/xdisp.c (message_dolog): If we create *Messages*,
switch it to messages-buffer-mode.
* lisp/emacs-lisp/ert.el (ert--force-message-log-buffer-truncation)
(ert-run-test): Use `message-buffer' function.
(ert--force-message-log-buffer-truncation): Ignore read-only.
* lisp/help.el (view-echo-area-messages): Use `message-buffer' function.
* lisp/mail/emacsbug.el (report-emacs-bug): Use `message-buffer' function.
* lisp/gnus/gnus-util.el (gnus-message-with-timestamp-1):
Use `message-buffer' function if available. Ignore read-only.
* etc/NEWS: Mention this.
lisp/simple.el (default-line-height): New function.
(line-move-partial, line-move): Use it instead of computing the
line height inline.
(line-move-partial): Always compute ROWH. If the last line is
partially-visible, but its text is completely visible, allow
cursor to enter such a partially-visible line.
lisp/simple.el (default-font-height, window-screen-lines): New
functions.
(line-move, line-move-partial): Use them instead of
frame-char-height and window-text-height. This makes scrolling
text smoother when the buffer's default face uses a font that is
different from the frame's default font.
src/xdisp.c (Fline_pixel_height): New function, required for solving
bug #14567.
lisp/simple.el (line-move-partial): Don't jump to the next screen
line as soon as it becomes visible. Instead, continue enlarging
the vscroll until the portion of a tall screen line that's left on
display is about the height of the frame's default font.
(eval-after-load): Allow form to be a function.
take advantage of lexical-binding.
(do-after-load-evaluation): Use dolist and adjust to new format.
* lisp/simple.el (bad-packages-alist): Use dolist and with-eval-after-load.
* doc/lispref/loading.texi (Hooks for Loading): Document with-eval-after-load
instead of eval-after-load. Don't document after-load-alist.
* src/lread.c (syms_of_lread):
* src/fns.c (Fprovide): Adjust to new format of after-load-alist.
eval-expression. Set completion-at-point-functions.
(eval-expression, eval-minibuffer): Use it.
* lisp/progmodes/flymake.el (flymake-nop): Don't return a string.
(flymake-set-at): Fix typo.
Fixes: debbugs:14465
lisp/simple.el (line-move-visual): Signal beginning/end of buffer
only if vertical-motion moved less than it was requested. Avoids
silly incorrect error messages when there are display strings with
multiple newlines at EOL.
* lisp/simple.el (filter-buffer-substring-function): New hook.
(filter-buffer-substring): Use it.
(filter-buffer-substring-functions): Mark obsolete.
* lisp/minibuffer.el (completion-in-region-function): New hook.
(completion-in-region): Use it.
(completion-in-region-functions): Mark obsolete.
* lisp/mail/mailabbrev.el (mail-abbrevs-setup): Use abbrev-expand-function.
* lisp/abbrev.el (abbrev-expand-function): New hook.
(expand-abbrev): Use it.
(abbrev-expand-functions): Mark obsolete.
* lisp/emacs-lisp/nadvice.el (advice--where-alist): Add :filter-args
and :filter-return.
* lisp/org/org-agenda.el (org-agenda-mode):
* lisp/org/org-indent.el (org-indent-mode): Use the `local' arg of
add-hook/remove-hook.
(eval-expression): Run it.
Extend eldoc to display info in the mode-line.
* emacs-lisp/eldoc.el (eldoc-post-insert-mode): New minor mode.
(eldoc-mode-line-string): New variable.
(eldoc-minibuffer-message): New function.
(eldoc-message-function): New variable.
(eldoc-message): Use it.
(eldoc-display-message-p)
(eldoc-display-message-no-interference-p): Support
eldoc-post-insert-mode.
Fixes: debbugs:13978
(extended-command-history): Move from C.
* src/keyboard.c (Qcommand_execute): New var.
(command_loop_1, read_char): Use it.
(Fcommand_execute): Remove, replace by an Elisp implementation.
(syms_of_keyboard): Adjust accordingly.
