More doc updates.

* doc/emacs/search.texi (Special Isearch): Document C-x 8 RET in isearch.
(Word Search): Document incremental word search changes.
(Isearch Yank): Document M-s C-e with a prefix argument.

* doc/lispref/files.texi (Changing Files): Document copy-file changes.

* lisp/isearch.el (isearch-yank-char, isearch-yank-word)
(isearch-yank-line): Doc fix.

doc/emacs/ChangeLog

@@ -1,3 +1,9 @@
+2014-01-07  Chong Yidong  <cyd@gnu.org>
+
+	* search.texi (Special Isearch): Document C-x 8 RET in isearch.
+	(Word Search): Document incremental word search changes.
+	(Isearch Yank): Document M-s C-e with a prefix argument.
+
 2014-01-07  Glenn Morris  <rgm@gnu.org>
 
 	* cal-xtra.texi (Calendar Customizing):

doc/emacs/search.texi

@@ -229,12 +229,14 @@ spaces in the text.  Hence, @samp{foo bar} matches @samp{foo bar},
 @samp{foo  bar}, @samp{foo   bar}, and so on (but not @samp{foobar}).
 More precisely, Emacs matches each sequence of space characters in the
 search string to a regular expression specified by the variable
-@code{search-whitespace-regexp}.  For example, set it to
-@samp{"[[:space:]\n]+"} to make spaces match sequences of newlines as
-well as spaces.  To toggle lax space matching, type @kbd{M-s SPC}
+@code{search-whitespace-regexp}.  For example, to make spaces match
+sequences of newlines as well as spaces, set it to
+@samp{"[[:space:]\n]+"}.
+
+  To toggle lax space matching, type @kbd{M-s SPC}
 (@code{isearch-toggle-lax-whitespace}).  To disable this feature
 entirely, change @code{search-whitespace-regexp} to @code{nil}; then
-each space in the search string matches exactly one space
+each space in the search string matches exactly one space.
 
   If the search string you entered contains only lower-case letters,
 the search is case-insensitive; as long as an upper-case letter exists
@@ -244,15 +246,29 @@ have this effect.  @xref{Search Case}.
 
   To search for a newline character, type @kbd{C-j}.
 
-  To search for other control characters, such as @key{control-S},
-quote it by typing @kbd{C-q} first (@pxref{Inserting Text}).  To
-search for non-@acronym{ASCII} characters, you can either use
-@kbd{C-q} and enter its octal code, or use an input method
-(@pxref{Input Methods}).  If an input method is enabled in the current
-buffer when you start the search, you can use it in the search string
-also.  While typing the search string, you can toggle the input method
-with the command @kbd{C-\} (@code{isearch-toggle-input-method}).  You
-can also turn on a non-default input method with @kbd{C-^}
+  To search for non-@acronym{ASCII} characters, use one of the
+following methods:
+
+@itemize @bullet
+@item
+Type @kbd{C-q}, followed by a non-graphic character or a sequence of
+octal digits.  This adds a character to the search string, similar to
+inserting into a buffer using @kbd{C-q} (@pxref{Inserting Text}).  For
+example, @kbd{C-q C-s} during incremental search adds the
+@key{control-S} character to the search string.
+
+@item
+Type @kbd{C-x 8 @key{RET}}, followed by a Unicode name or code-point.
+This adds the specified character into the search string, similar to
+the usual @code{insert-char} command (@pxref{Inserting Text}).
+
+@item
+Use an input method (@pxref{Input Methods}).  If an input method is
+enabled in the current buffer when you start the search, you can use
+it in the search string also.  While typing the search string, you can
+toggle the input method with @kbd{C-\}
+(@code{isearch-toggle-input-method}).  You can also turn on a
+non-default input method with @kbd{C-^}
 (@code{isearch-toggle-specified-input-method}), which prompts for the
 name of the input method.  When an input method is active during
 incremental search, the search prompt includes the input method
@@ -268,6 +284,7 @@ I-search [@var{im}]:
 where @var{im} is the mnemonic of the active input method.  Any input
 method you enable during incremental search remains enabled in the
 current buffer afterwards.
+@end itemize
 
 @kindex M-% @r{(Incremental search)}
   Typing @kbd{M-%} in incremental search invokes @code{query-replace}
@@ -315,7 +332,8 @@ of whether to copy a character or a word is heuristic.)
 @findex isearch-yank-line
   Similarly, @kbd{M-s C-e} (@code{isearch-yank-line}) appends the rest
 of the current line to the search string.  If point is already at the
-end of a line, it appends the next line.
+end of a line, it appends the next line.  With a prefix argument
+@var{n}, it appends the next @var{n} lines.
 
   If the search is currently case-insensitive, both @kbd{C-w} and
 @kbd{M-s C-e} convert the text they copy to lower case, so that the
@@ -481,12 +499,13 @@ These run the commands @code{word-search-forward} and
 @code{word-search-backward} respectively.
 
   Incremental and nonincremental word searches differ slightly in the
-way they find a match.  In a nonincremental word search, the last word
-in the search string must exactly match a whole word.  In an
-incremental word search, the matching is more lax: the last word in
-the search string can match part of a word, so that the matching
-proceeds incrementally as you type.  This additional laxity does not
-apply to the lazy highlight, which always matches whole words.
+way they find a match.  In a nonincremental word search, each word in
+the search string must exactly match a whole word.  In an incremental
+word search, the matching is more lax: while you are typing the search
+string, its first and last words need not match whole words.  This is
+so that the matching can proceed incrementally as you type.  This
+additional laxity does not apply to the lazy highlight, which always
+matches whole words.
 
 @node Symbol Search
 @section Symbol Search

doc/lispref/ChangeLog

@@ -1,3 +1,7 @@
+2014-01-07  Chong Yidong  <cyd@gnu.org>
+
+	* files.texi (Changing Files): Document copy-file changes.
+
 2014-01-07  Glenn Morris  <rgm@gnu.org>
 
 	* display.texi (Logging Messages): Copyedits re messages-buffer.

doc/lispref/files.texi

@@ -1561,11 +1561,15 @@ file.  This works only on some operating systems, and only if you have
 the correct permissions to do so.
 
 If the optional argument @var{preserve-permissions} is non-@code{nil},
-this function copies the file modes (or ``permissions''), as well as
-its Access Control List and SELinux context (if any).
-@xref{Information about Files}.  Otherwise, if the destination is
-created its file permission bits are those of the source, masked by
-the default file permissions.
+this function copies the file modes (or ``permissions'') of
+@var{oldname} to @var{newname}, as well as the Access Control List and
+SELinux context (if any).  @xref{Information about Files}.
+
+Otherwise, the file modes of @var{newname} are left unchanged if it is
+an existing file, and set to those of @var{oldname}, masked by the
+default file permissions (see @code{set-default-file-modes} below), if
+@var{newname} is to be newly created.  The Access Control List or
+SELinux context are not copied over in either case.
 @end deffn
 
 @deffn Command make-symbolic-link filename newname  &optional ok-if-exists
@@ -1636,13 +1640,12 @@ returns the permissions of a file.
 
 @defun set-default-file-modes mode
 @cindex umask
-This function sets the default file permissions for new files created
-by Emacs and its subprocesses.  Every file created with Emacs
-initially has these permissions, or a subset of them
-(@code{write-region} will not grant execute permissions even if the
-default file permissions allow execution).  On Unix and GNU/Linux, the
-default permissions are given by the bitwise complement of the
-``umask'' value.
+This function sets the default permissions for new files created by
+Emacs and its subprocesses.  Every file created with Emacs initially
+has these permissions, or a subset of them (@code{write-region} will
+not grant execute permissions even if the default file permissions
+allow execution).  On Unix and GNU/Linux, the default permissions are
+given by the bitwise complement of the ``umask'' value.
 
 The argument @var{mode} should be an integer which specifies the
 permissions, similar to @code{set-file-modes} above.  Only the lowest

etc/NEWS

@@ -702,6 +702,7 @@ rather than mboxo.  Customize `unrmail-mbox-format' to change this.
 starts a symbol (identifier) incremental search forward with the
 symbol found near point added to the search string initially.
 
++++
 *** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
 and adds it to the search string.
 
@@ -721,10 +722,12 @@ backward, `M-s w words M-- M-%' replaces a sequence of words backward.
 *** By default, prefix arguments do not now terminate Isearch mode.
 Set `isearch-allow-prefix' to nil to restore old behavior.
 
++++
 *** More Isearch commands accept prefix arguments, namely
 `isearch-printing-char', `isearch-quote-char', `isearch-yank-word',
 `isearch-yank-line'.
 
++++
 *** Word search now matches whitespace at the beginning/end
 of the search string if it contains leading/trailing whitespace.
 In an incremental word search or when using a non-nil LAX argument
@@ -739,7 +742,7 @@ that it matches symbols, and non-symbol characters between symbols.
 *** New command `ses-rename-cell' allows assigning names to SES cells.
 
 ** Shell
-
+---
 *** `explicit-bash-args' now always defaults to use --noediting.
 During initialization, Emacs no longer expends a process to decide
 whether it is safe to use Bash's --noediting option.  These days
@@ -971,6 +974,7 @@ alist of extended attributes as returned by the new function
 `file-extended-attributes'.  The attributes can be applied to another
 file using `set-file-extended-attributes'.
 
++++
 ** By default `copy-file' no longer copies file permission bits to an
 existing destination; and it sets the file permission bits of a newly
 created destination to those of the source, masked by the default file
@@ -1146,6 +1150,7 @@ Unix file permission bits as well as SELinux context.
 argument GROUP which causes it check for file group too.  This can be
 used in place of the 9th element of `file-attributes'.
 
+---
 *** The function `set-visited-file-modtime' now accepts a 0 or -1
 argument, with the same interpretation as the returned value of
 `visited-file-modtime'.

lisp/ChangeLog

@@ -1,3 +1,8 @@
+2014-01-07  Chong Yidong  <cyd@gnu.org>
+
+	* isearch.el (isearch-yank-char, isearch-yank-word)
+	(isearch-yank-line): Doc fix.
+
 2014-01-06  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* abbrev.el (define-abbrev): Beware new meaning of fboundp.

lisp/isearch.el

@@ -1946,7 +1946,8 @@ or it might return the position of the end of the line."
     (forward-char arg)))
 
 (defun isearch-yank-char (&optional arg)
-  "Pull next character from buffer into search string."
+  "Pull next character from buffer into search string.
+If optional ARG is non-nil, pull in the next ARG characters."
   (interactive "p")
   (isearch-yank-internal (lambda () (forward-char arg) (point))))
 
@@ -1965,12 +1966,14 @@ Subword is used when `subword-mode' is activated. "
        (forward-char 1)) (point))))
 
 (defun isearch-yank-word (&optional arg)
-  "Pull next word from buffer into search string."
+  "Pull next word from buffer into search string.
+If optional ARG is non-nil, pull in the next ARG words."
   (interactive "p")
   (isearch-yank-internal (lambda () (forward-word arg) (point))))
 
 (defun isearch-yank-line (&optional arg)
-  "Pull rest of line from buffer into search string."
+  "Pull rest of line from buffer into search string.
+If optional ARG is non-nil, yank the next ARG lines."
   (interactive "p")
   (isearch-yank-internal
    (lambda () (let ((inhibit-field-text-motion t))