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* window.h (WGET, WSET): New macros similar to AREF and ASET.
* alloc.c, buffer.c, composite.c, dispextern.h, dispnew.c, editfns.c:
* fileio.c, font.c, fontset.c, frame.c, frame.h, fringe.c, indent.c:
* insdel.c, keyboard.c, keymap.c, lisp.h, minibuf.c, msdos.c, nsfns.m:
* nsmenu.m, nsterm.m, print.c, textprop.c, w32fns.c, w32menu.c:
* w32term.c, window.c, xdisp.c, xfaces.c, xfns.c, xmenu.c, xterm.c:
Adjust users.

* w32term.c (x_frame_rehighlight, x_scroll_bar_create):
(w32_condemn_scroll_bars, w32_redeem_scroll_bar):
(w32_judge_scroll_bars): Change to use FSET.
Reported by Andy Moreton <andrewjmoreton@gmail.com>.

* window.c (replace_window): Set root_window instead of
selected_window.  This fixes a total window subsystem
malfunction reported by Bastien Guerry <bzg@gnu.org>.

(farsi-isiri-9147, farsi-transliterate-banan): Doc fixes.

Fixes: debbugs:11812

* lisp/loadup.el: Add language/persian.el.

Fixes: debbugs:11812

* replace.el (occur-after-change-function): Avoid losing focus by
using the inhibit-switch-frame display action option.

* window.el (window--maybe-raise-frame): New function.
(window--display-buffer): Split off from here.
(display-buffer-reuse-window, display-buffer-pop-up-frame)
(display-buffer-pop-up-window, display-buffer-use-some-window):
Obey an inhibit-switch-frame action alist entry.
(display-buffer): Update doc.

Fixes: debbugs:12139

* frame.h (FGET, FSET): New macros similar to AREF and ASET.
* buffer.c, data.c, dispnew.c, dosfns.c, eval.c, fontset.c, frame.c:
* fringe.c, gtkutil.c, minibuf.c, msdos.c, nsfns.m, nsmenu.m, nsterm.m:
* print.c, term.c, w32fns.c, w32menu.c, w32term.c, window.c, window.h:
* xdisp.c, xfaces.c, xfns.c, xmenu.c, xterm.c: Adjust users.

* progmodes/python.el (python-shell-make-comint): Add optional
argument INTERNAL.
(run-python-internal): Use it.
(python-shell-internal-get-or-create-process): Check for new
internal buffer names.

* lisp/eshell/esh-ext.el (eshell/addpath): Use dolist.
Do less getting and setting of environment variables.

* erc-match.el (erc-match-exclude-server-buffer)
(erc-match-message): Add new option to exclude server buffer from
matching.

* lisp.h (header_size, bool_header_size, word_size): Now here.
(struct Lisp_Vector): Add comment.
(struct Lisp_Bool_Vector): Move up to define handy constants.
(VECSIZE, PSEUDOVECSIZE): Simplify.
(SAFE_ALLOCA_LISP): Use new constant.  Adjust indentation.
* buffer.c, buffer.h, bytecode.c, callint.c, eval.c, fns.c:
* font.c, fontset.c, keyboard.c, keymap.c, macros.c, menu.c:
* msdos.c, w32menu.c, w32term.h, window.c, xdisp.c, xfaces.c:
* xfont.c, xmenu.c: Use word_size where appropriate.

* lisp/proced.el (proced): Add substitution string to docstring to
trigger autoloading of the proced library on C-h f.

Fixes: debbugs:1768

* lisp/emacs-lisp/lisp-mode.el (lisp-imenu-generic-expression): Don't
show defvars which have no second argument.

* lisp/imenu.el (imenu-generic-expression): Move documentation here
from imenu--generic-function.
(imenu--generic-function): Refer to imenu-generic-expression.

Fixes: debbugs:8638

Fixes: debbugs:8161

* doc/custom.texi (Face Customization): Move discussion of face
inheritance here, from Faces section.

* doc/display.texi (Faces): Document frame-background-mode.

* doc/lispref/display.texi (Defining Faces): Move documentation of
frame-background-mode to the Emacs manual (Bug#7774).

* lisp/emulation/viper-init.el (viper-deflocalvar): Add docstring and
indentation declaration.
(viper-loop): Add indentation declaration.

Fixes: debbugs:7025

* lisp/help-fns.el (describe-variable): Add hyperlink for
directory-local variables files.  Improve buffer-local and
permanent-local reporting; suggested by MON KEY.

* lisp/help-mode.el (help-dir-local-var-def): New button type.

Fixes: debbugs:6644

* lisp/files.el (kill-buffer-hook): Provide a defvar.

* src/term.c (Vsuspend_tty_functions, Vresume_tty_functions):
* src/frame.c (Vdelete_frame_functions):
* src/emacs.c (Vkill_emacs_hook): Doc fix.

Fixes: debbugs:12013

Fixes: debbugs:11979

(fringe-styles): Add docstring.
(fringe--check-style): New function.
(set-fringe-mode, set-fringe-style): Use it.
(fringe-mode, set-fringe-style): Doc fixes.

Fixes: debbugs:6480

(isearch-mode-map): Dense maps now work like sparse ones.
(isearch--state): New defstruct.
(isearch-string-state, isearch-message-state, isearch-point-state)
(isearch-success-state, isearch-forward-state)
(isearch-other-end-state, isearch-word-state, isearch-error-state)
(isearch-wrapped-state, isearch-barrier-state)
(isearch-case-fold-search-state, isearch-pop-fun-state): Remove,
replaced by defstruct's accessors.
(isearch--set-state): Rename from isearch-top-state and change
calling convention.
(isearch-push-state): Use new isearch--get-state.
(isearch-toggle-word): Disable regexp when enabling word.
(isearch-message-prefix): Remove unused arg _c-q-hack.
(isearch-message-suffix): Remove unused arg _ellipsis.

 stc/xfns.c (x_set_menu_bar_lines): Fix compilation error in
 --with-x-toolkit=no builds by using FVAR.
 Reported by Carsten Mattner <carstenmattner@gmail.com>.

* src/syntax.c (Fmodify_syntax_entry): Doc fix.

* doc/lispref/syntax.texi (Syntax Basics): Rearrange the text for clarity.
Fix description of syntax table inheritance.
(Syntax Table Functions): Don't refer to internal contents of
syntax table, since that is not explained yet.  Copyedits.
(Standard Syntax Tables): Node deleted.
(Syntax Table Internals): Misc clarifications.  Improve table
formatting.

* doc/lispref/keymaps.texi (Inheritance and Keymaps):
* doc/lispref/text.texi (Sticky Properties): Tweak index entry.

 src/w32.c (init_environment): Change the default values of many
 environment variables in dflt_envvars[] to NULL, to avoid pushing
 them into environment when they were not already defined.  Remove
 the code that deletes site-lisp subdirectories from the default
 value of EMACSLOADPATH, as it is no longer needed.
 (check_windows_init_file): Now external, not static.  Use
 Vload_path as is, without adding anything, as this function is now
 called when Vload_path is already set up.
 src/w32.h (check_windows_init_file): Add prototype.
 src/emacs.c (init_cmdargs) [WINDOWSNT]: When running from the build
 directory, ignore the /*/i386/ tail in Vinvocation_directory, for
 compatibility with Posix platforms.
 (main): Move the call to check_windows_init_file to here from
 w32.c.
 (decode_env_path) [WINDOWSNT]: Expand the %emacs_dir%/ prefix, if
 any, in the DEFALT argument into the root of the Emacs build or
 installation tree, as appropriate...

 msdos/sedlibmk.inp (allocator.$(OBJEXT), careadlinkat.$(OBJEXT)): Fix
 editing out.
 msdos/sed2v2.inp (IS_DEVICE_SEP): Edit to match ':'.
 (IS_DIRECTORY_SEP, INTERNAL_TERMINAL): Fix Sed command syntax.
 (MSDOS): Define only if undefined, as MSDOS is a built-in macro,
 unless some std= switch to GCC is used.

 src/msdos.c (dos_set_window_size, IT_update_begin)
 (IT_frame_up_to_date, IT_set_frame_parameters): Use FVAR and WVAR
 instead of direct references.