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extra newlines at the end of the buffer.

(picture-newline): Use forward-line so as to ignore fields.

Fixes: debbugs:4538

non-successfully if a write error occurred on stdout.  (Bug#9574)

nasty bug using wrong cached values.

* frames.texi (Frames and Windows): Move section and rename to
Windows and Frames in windows.texi.
* windows.texi (Windows): Restructure.
(Basic Windows): Rewrite.  Explain live and internal windows and
normalization functions.
(Windows and Frames): Move section here from frames.texi.
Describe subwindows, window combinations, window tree, and
corresponding functions including window-list here.
(Window Sizes): Rename section from Size of Window and move it
up in chapter.  Describe total and body sizes and the
corresponding functions.  Explain new semantics of
window-min-height/-width.
(Resizing Windows): Move section up in chapter.  Describe new
resize functions.
(Splitting Windows): Describe new behavior of split-window,
split-window-above-each-other and split-window-side-by-side.
Provide examples.  Describe window-nest and window-splits
options.
(Deleting Windows): Minor rewrite.
(Selecting Windows): Minor rewrite.  Describe
frame-selected-window and set-frame-selected-window here.
(Cyclic Window Ordering): Minor rewrite.  Describe
window-list-1.
(Buffers and Windows): Rewrite.  Explain a window's previous and
next buffers and the corresponding functions.
* elisp.texi (Top): Update node listings for frames and windows
sections.

Otherwise, C-x 5 b might not select the right window if reusing a
window on another frame.

 lisp/simple.el (what-cursor-position): Use get-char-property-change
 and next-single-char-property-change, to be able to show display
 properties that come from overlays as well as text properties.

* window.el (pop-to-buffer-same-window): New (reinstated) fun.

* cmuscheme.el (run-scheme, switch-to-scheme):
* cus-edit.el (customize-group, custom-buffer-create)
(customize-browse):
* info.el (info):
* shell.el (shell):
* mail/sendmail.el (mail):
* progmodes/inf-lisp.el (inferior-lisp): Use it.

Fixes: debbugs:9532

they could be retrieved from the source directory.  (Bug#9565)

* window.el (special-display-popup-frame): When popping up a new frame
reset its previous buffers to nil.  Simplify code.

* lisp/progmodes/hideshow.el (hs-looking-at-block-start-p)
(hs-find-block-beginning, hs-hide-level-recursive):
Ignore strings as well as comments.

Fixes: debbugs:9502

* lisp/progmodes/sql.el (sql-comint-postgres):
Convert port number to a string.

Fixes: debbugs:9556

* window.el (quit-window): Undedicate window when switching to
previous buffer.  Reported by Thierry Volpiatto
<thierry.volpiatto@gmail.com>.

 (mml-compute-boundary): Don't check collision if it is non-nil.
 (mml-compute-boundary-1): Use mml-generate-mime-1 to encode part before checking collision.

gnus.texi (Archived Messages): Note the default (bug#9552).
message.el (message-indent-citation): Really make sure there's a newline at the end.
nnimap.el (nnimap-parse-flags): Make regexp less prone to overflows.  Fix suggested by John Wiegley.
pop3.el (pop3-open-server): Fix +OK end-of-command regexp.
gnus-art.el (gnus-treat-hide-citation): Add doc.
message.el (message-default-send-rename-function): Break out into its own function.
ecomplete.el (ecomplete-display-matches): Revert patch since it doesn't work under XEmacs.
nnimap.el (nnimap-map-port): New function to connect to 993 instead of "imaps" to word around Windows problems.
 (nnimap-open-connection-1): Use it.
message.el (message-indent-citation): Revert last change which made `F' not work.

and process filter, as done also in `shell-command'.

* window.el (set-window-buffer-start-and-point): Call
set-window-start with NOFORCE argument t.  Suggested by Thierry
Volpiatto <thierry.volpiatto@gmail.com>.
(quit-window): Reword doc-string.  Handle new format of
quit-restore parameter.  Don't delete window if it has a
previous buffer we can show instead of the present one.
(display-buffer-record-window): Rewrite using a new format for
the quit-restore window parameter
(special-display-popup-frame, display-buffer-same-window)
(display-buffer-reuse-window, display-buffer-pop-up-frame)
(display-buffer-pop-up-window, display-buffer-use-some-window):
Adapt symbol passed to display-buffer-record-window.
* help.el (help-window-setup): Handle new format of quit-restore
parameter.

 src/xdisp.c (pop_it): Allow it->object that is a cons cell to pass
 the xassert test.
 src/dispextern.h (struct it): Update the comment documenting what
 can it->OBJECT be.

release 8.3.
(Preface): Updated support information.
(From Bill Wohler): Reset text to original version. As a historical
quote, the tense should be correct in the time that it was written.

mm-view.el (mm-display-inline-fontify): Don't run doc-view-mode because it displays images using overlays that aren't easy to copy to the article buffer.

Fixes: debbugs:9564

Fixes: debbugs:9564

Don't include internal functions in the Custom interface.

message.el (message-indent-citation): Fix empty line removal at the end of the citation.
auth-source.el (auth-source-netrc-create): Use default value for password if specified. Evaluate default.
 (auth-source-plstore-create): Ditto.
 (auth-source-plstore-create, auth-source-netrc-create): Fix default value evaluation.
 (auth-source-netrc-create): Typo fix.
 (auth-source-plstore-create): Ditto.

(Info-forward-node, Info-backward-node, Info-next-preorder)
(Info-last-preorder): Use it.

Fixes: debbugs:9528

 src/xdisp.c (Fcurrent_bidi_paragraph_direction): Fix search for previous
 non-empty line.  Fixes confusing cursor motion with arrow keys at
 the beginning of a line that starts with whitespace.

 src/xdisp.c (set_cursor_from_row): If the row ends in a newline from
 a display string, extend search for cursor position to end of row.
 (find_row_edges): If the row ends in a newline from a display
 string, increment its MATRIX_ROW_END_CHARPOS by one.
 Handle the case of a display string with multiple newlines.

`Info-scroll-prefer-subnodes' is non-nil (third test-case of bug#9528).

password-cache.el (password-cache-remove): Remove entries even if the value is nil, so that password with a nil value (negative caching) is possible to invalidate.
auth-source.el (auth-source-format-cache-entry): New function.

error messages.