Change all occurrences of "Mouse-[0-9]" to "mouse-[0-9]"

* doc/emacs/*.texi: Change all occurrences of "Mouse-[0-9]" to
"mouse-[0-9]".  These are case sensitive, and the keys are lower case
(bug#14554).

(cherry picked from commit e4c26271f2c2fe08f8490e25c63a436ab2a804ca)

10 files changed, 74 insertions, 74 deletions

diff --git a/doc/misc/ebrowse.texi b/doc/misc/ebrowse.texi
index 28fa42b33ef..816cb562555 100644
--- a/doc/misc/ebrowse.texi
+++ b/doc/misc/ebrowse.texi
@@ -421,9 +421,9 @@ regions in the buffer.  Please notice the help strings in the echo area
 when the mouse moves over a sensitive region.
 
 @cindex context menu
-A click with @kbd{Mouse-3} on a mouse-sensitive region opens a context
+A click with @kbd{mouse-3} on a mouse-sensitive region opens a context
 menu.  In addition to this, each buffer also has a buffer-specific menu
-that is opened with a click with @kbd{Mouse-3} somewhere in the buffer
+that is opened with a click with @kbd{mouse-3} somewhere in the buffer
 where no highlight is displayed.
 
 
@@ -488,7 +488,7 @@ editing.
 @end table
 
 The same functionality is available from the menu opened with
-@kbd{Mouse-3} on the class name.
+@kbd{mouse-3} on the class name.
 
 
 
@@ -551,7 +551,7 @@ Display a list of types.
 @end table
 
 These lists are also available from the class' context menu invoked with
-@kbd{Mouse-3} on the class name.
+@kbd{mouse-3} on the class name.
 
 
 
@@ -898,7 +898,7 @@ You can install a hook function to perform actions after a member or
 class declaration or definition has been found, or when it is not found.
 
 All the commands described above can also be found in the context menu
-displayed when clicking @kbd{Mouse-2} on a member name.
+displayed when clicking @kbd{mouse-2} on a member name.
 
 
 
diff --git a/doc/misc/efaq.texi b/doc/misc/efaq.texi
index 1fa46492080..fd4fd4f3798 100644
--- a/doc/misc/efaq.texi
+++ b/doc/misc/efaq.texi
@@ -2408,7 +2408,7 @@ error messages, inserts them into a special buffer called
 the source.  Type @kbd{C-x `} to step through the offending lines one by
 one (starting with Emacs 22, you can also use @kbd{M-g M-p} and
 @kbd{M-g M-n} to go to the previous and next matches directly).  Click
-@kbd{Mouse-2} or press @key{RET} on a message text in the
+@kbd{mouse-2} or press @key{RET} on a message text in the
 @file{*compilation*} buffer to go to the line whose number is mentioned
 in that message.
 
@@ -3888,7 +3888,7 @@ is how to make @kbd{H-M-RIGHT} move forward a word:
 Not all modifiers are permitted in all situations.  @key{Hyper},
 @key{Super}, and @key{Alt} are not available on Unix character
 terminals.  Non-@acronym{ASCII} keys and mouse events (e.g., @kbd{C-=} and
-@kbd{Mouse-1}) also fall under this category.
+@kbd{mouse-1}) also fall under this category.
 
 @end itemize
 
diff --git a/doc/misc/idlwave.texi b/doc/misc/idlwave.texi
index 64b1585c5ce..26c81d65948 100644
--- a/doc/misc/idlwave.texi
+++ b/doc/misc/idlwave.texi
@@ -1281,7 +1281,7 @@ the routine documentation header and/or routine source.
 @kindex M-?
 In any IDL program (or, as with most IDLWAVE commands, in the IDL
 Shell), press @kbd{M-?} (@code{idlwave-context-help}), or click with
-@kbd{S-Mouse-3} to access context sensitive online help.  The following
+@kbd{S-mouse-3} to access context sensitive online help.  The following
 locations are recognized context for help:
 
 @cindex Context, for online help
@@ -1327,11 +1327,11 @@ which online help can be accessed.
 @itemize @bullet
 @item
 Online help for routines and keywords can be accessed through the
-Routine Info display.  Click with @kbd{Mouse-3} on an item to see the
+Routine Info display.  Click with @kbd{mouse-3} on an item to see the
 corresponding help (@pxref{Routine Info}).
 @item
 When using completion and Emacs pops up a @file{*Completions*} buffer
-with possible completions, clicking with @kbd{Mouse-3} on a completion
+with possible completions, clicking with @kbd{mouse-3} on a completion
 item invokes help on that item (@pxref{Completion}).  Items for which
 help is available in the online system documentation (vs. just the
 program source itself) will be emphasized (e.g., colored blue).
@@ -1577,7 +1577,7 @@ search for a procedure matching a regexp.
 If the list of completions is too long to fit in the
 @file{*Completions*} window, the window can be scrolled by pressing
 @kbd{M-@key{TAB}} repeatedly.  Online help (if installed) for each
-possible completion is available by clicking with @kbd{Mouse-3} on the
+possible completion is available by clicking with @kbd{mouse-3} on the
 item.  Items for which system online help (from the IDL manual) is
 available will be emphasized (e.g., colored blue).  For other items, the
 corresponding source code or DocLib header will be used as the help
@@ -2811,7 +2811,7 @@ you add or remove some on the command line) using @kbd{C-c C-d C-l}.
 
 In recent IDLWAVE versions, the breakpoint line is highlighted when the
 mouse is moved over it, and a tooltip pops up describing the break
-details.  @kbd{Mouse-3} on the breakpoint line pops up a menu of
+details.  @kbd{mouse-3} on the breakpoint line pops up a menu of
 breakpoint actions, including clearing, disabling, and adding or
 changing break conditions or ``after'' break count.
 
@@ -3151,7 +3151,7 @@ print, only an initial portion of long arrays will be printed, up to
 
 For added speed and convenience, there are mouse bindings which allow
 you to click on expressions and examine their values.  Use
-@kbd{S-Mouse-2} to print an expression and @kbd{C-M-Mouse-2} to invoke
+@kbd{S-mouse-2} to print an expression and @kbd{C-M-mouse-2} to invoke
 help (i.e., you need to hold down @key{META} and @key{CONTROL} while
 clicking with the middle mouse button).  If you simply click, the
 nearest expression will be selected in the same manner as described
@@ -3219,7 +3219,7 @@ mouse examine command, and two macros for generating your own examine
 key and mouse bindings.
 
 The most powerful and flexible mouse examine command of all is
-available on @kbd{C-S-Mouse-2}.  Just as for all the other mouse
+available on @kbd{C-S-mouse-2}.  Just as for all the other mouse
 examine commands, it permits click or drag expression selection, but
 instead of sending hard-coded commands to the shell, it pops-up a
 customizable selection list of examine functions to choose among,
diff --git a/doc/misc/info.texi b/doc/misc/info.texi
index 135c443c075..0a8100fec46 100644
--- a/doc/misc/info.texi
+++ b/doc/misc/info.texi
@@ -671,7 +671,7 @@ the @key{Shift} key and then press @key{TAB}).
 that subtopic's node.
 
 @cindex mouse support in Info mode
-@kindex Mouse-2 @r{(Info mode)}
+@kindex mouse-2 @r{(Info mode)}
   If your terminal supports a mouse, you have yet another way of going
 to a subtopic.  Move your mouse pointer to the subtopic line,
 somewhere between the beginning @samp{*} and the colon @samp{:} which
@@ -679,22 +679,22 @@ ends the subtopic's brief name.  You will see the subtopic's name
 change its appearance (usually, its background color will change), and
 the shape of the mouse pointer will change if your platform supports
 that.  After a while, if you leave the mouse on that spot, a small
-window will pop up, saying ``Mouse-2: go to that node,'' or the same
+window will pop up, saying ``mouse-2: go to that node,'' or the same
 message may appear at the bottom of the screen.
 
-  @kbd{Mouse-2} is the second button of your mouse counting from the
+  @kbd{mouse-2} is the second button of your mouse counting from the
 left---the middle button on a 3-button mouse.  (On a 2-button mouse,
 you may have to press both buttons together to ``press the middle
-button''.)  The message tells you pressing @kbd{Mouse-2} with the
+button''.)  The message tells you pressing @kbd{mouse-2} with the
 current position of the mouse pointer (on subtopic in the menu) will
 go to that subtopic.
 
 @findex Info-mouse-follow-nearest-node
-  More generally, @kbd{Mouse-2} in an Info buffer finds the nearest
+  More generally, @kbd{mouse-2} in an Info buffer finds the nearest
 link to another node and goes there.  For example, near a cross
 reference it acts like @kbd{f}, in a menu it acts like @kbd{m}, on the
 node's header line it acts like @kbd{n}, @kbd{p}, or @kbd{u}, etc.  At
-end of the node's text @kbd{Mouse-2} moves to the next node, or up if
+end of the node's text @kbd{mouse-2} moves to the next node, or up if
 there's no next node.
 
 @format
@@ -719,7 +719,7 @@ to the subnode that the @kbd{u} command brought you from.  (Some Info
 readers may put you at the @emph{front} of the node instead---to get
 back to where you were reading, you have to type some @key{SPC}s.)
 
-  Another way to go Up is to click @kbd{Mouse-2} on the @samp{Up}
+  Another way to go Up is to click @kbd{mouse-2} on the @samp{Up}
 pointer shown in the header line (provided that you have a mouse).
 
 @format
@@ -740,7 +740,7 @@ in Emacs.  Do @kbd{M-x visible-mode} to show or hide it.)
 @findex Info-follow-reference
   You can follow a cross reference by moving the cursor to it and
 press @key{RET}, just as in a menu.  In Emacs, you can also click
-@kbd{Mouse-1} on a cross reference to follow it; you can see that the
+@kbd{mouse-1} on a cross reference to follow it; you can see that the
 cross reference is mouse-sensitive by moving the mouse pointer to the
 reference and watching how the underlying text and the mouse pointer
 change in response.
diff --git a/doc/misc/mh-e.texi b/doc/misc/mh-e.texi
index d1fd8f76118..c48e4a40ea9 100644
--- a/doc/misc/mh-e.texi
+++ b/doc/misc/mh-e.texi
@@ -1566,7 +1566,7 @@ M-x mh-rmail @key{RET} bob @key{RET}}). @xref{Folders}.}.
 @findex display-time
 @vindex read-mail-command
 
-There are some commands that need to read mail, such as @kbd{Mouse-2}
+There are some commands that need to read mail, such as @kbd{mouse-2}
 over the @samp{Mail} button that @code{display-time} adds to the mode
 line. You can configure Emacs to have these commands use MH-E by
 setting the option @code{read-mail-command} to @samp{mh-rmail}.
@@ -1835,9 +1835,9 @@ minibuffer (@code{mh-prefix-help}).
 Unpack message created with @command{uudecode} or @command{shar}
 (@code{mh-store-msg}).
 @c -------------------------
-@kindex Mouse-2
+@kindex mouse-2
 @findex mh-show-mouse
-@item Mouse-2
+@item mouse-2
 Move point to mouse event and show message (@code{mh-show-mouse}).
 @end table
 
@@ -1845,12 +1845,12 @@ Within the MH-Show buffer, the following command is defined.
 
 @table @kbd
 @kindex @key{RET}
-@kindex Mouse-1
-@kindex Mouse-2
+@kindex mouse-1
+@kindex mouse-2
 @findex mh-press-button
 @item @key{RET}
-@itemx Mouse-1
-@itemx Mouse-2
+@itemx mouse-1
+@itemx mouse-2
 View contents of button (@code{mh-press-button}).
 @end table
 
@@ -2022,10 +2022,10 @@ detail in the following sections.
 @kindex @key{BS}
 @kindex @key{RET}
 @kindex @key{SPC}
-@kindex Mouse-2
+@kindex mouse-2
 
 The command @key{RET} (@code{mh-show}) displays the message that the
-cursor is on while @kbd{Mouse-2} (@code{mh-show-mouse}) displays the
+cursor is on while @kbd{mouse-2} (@code{mh-show-mouse}) displays the
 message that the mouse cursor is on. If the message is already
 displayed, it scrolls to the beginning of the message. Use @key{SPC}
 (@code{mh-page-msg}) and @key{BS} (@code{mh-previous-page}) to move
@@ -2201,13 +2201,13 @@ highlighting of citations entirely, choose @samp{None}.
 @cindex links, following
 @findex goto-address-at-point
 @kindex C-c @key{RET}
-@kindex Mouse-2
+@kindex mouse-2
 @vindex goto-address-highlight-p
 
 Email addresses and URLs in the message are highlighted if the option
 @code{goto-address-highlight-p} is on, which it is by default. To view
 the web page for a highlighted URL or to send a message using a
-highlighted email address, use @kbd{Mouse-2} or @kbd{C-c @key{RET}}
+highlighted email address, use @kbd{mouse-2} or @kbd{C-c @key{RET}}
 (@code{goto-address-at-point}). @xref{Sending Mail}, to see how to
 configure Emacs to send the message using MH-E.
 
@@ -2337,11 +2337,11 @@ Attachments in MH-E are indicated by @dfn{buttons} like this:
 @kindex @key{RET}
 @kindex K @key{TAB}
 @kindex K S-@key{TAB}
-@kindex Mouse-1
-@kindex Mouse-2
+@kindex mouse-1
+@kindex mouse-2
 
-To view the contents of the button, use either @kbd{Mouse-1} or
-@kbd{Mouse-2} on the button or @key{RET} (@code{mh-press-button}) when
+To view the contents of the button, use either @kbd{mouse-1} or
+@kbd{mouse-2} on the button or @key{RET} (@code{mh-press-button}) when
 the cursor is over the button. This command is a toggle so if you use
 it again on the same attachment, it is hidden. If Emacs does not know
 how to display the attachment, then Emacs offers to save the
@@ -2561,11 +2561,11 @@ includes the results of a quick poll of MH-E users from 2005-12-23.
 @table @asis
 @cindex browser, @samp{w3m}
 @cindex @samp{w3m}
-@kindex Mouse-2
+@kindex mouse-2
 @item @samp{w3m} 7
 The @samp{w3m} browser requires an external program. It's quick,
 produces pretty nice output, and best of all, it's the only browser
-that highlights links. These can be clicked with @kbd{Mouse-2} to view
+that highlights links. These can be clicked with @kbd{mouse-2} to view
 the content of the link in @samp{w3m}. The @samp{w3m} browser handles
 tables well and actually respects the table's width parameter (which
 can cause text to wrap if the author didn't anticipate that the page
@@ -2650,7 +2650,7 @@ documentation for the Gnus command @kbd{W h} (see section
 @cindex @file{.emacs}
 @cindex files, @file{.emacs}
 @findex browse-url-at-mouse
-@kindex S-Mouse-2
+@kindex S-mouse-2
 
 A useful key binding that you can add to @file{~/.emacs} is the
 following which displays an HTML link or textual URL in an external
@@ -6261,7 +6261,7 @@ containing the value for the field is given.
 @findex mh-visit-folder
 @kindex F v
 @kindex M-x speedbar
-@kindex Mouse-2
+@kindex mouse-2
 
 You can also use the speedbar
 @ifnothtml
@@ -6275,7 +6275,7 @@ Speedbar Frames} in @cite{The GNU Emacs Manual})
 to view your folders. To bring up the speedbar, run @kbd{M-x speedbar
 @key{RET}}. You will see a new frame appear with all of your MH
 folders. Folders with unseen messages appear in boldface. Click on a
-folder name with @kbd{Mouse-2} to visit that folder in a similar
+folder name with @kbd{mouse-2} to visit that folder in a similar
 fashion to the command @kbd{F v} (@code{mh-visit-folder})
 (@pxref{Folders}). Click on the @samp{+} icon to expand and view the
 sub-folders of that folder.
@@ -6310,9 +6310,9 @@ count before the next automatic update (@code{mh-speed-refresh}).
 
 @findex delete-frame
 @kindex C-x 5 0
-@kindex Mouse-3
+@kindex mouse-3
 
-You can click on @kbd{Mouse-3} to bring up a context menu that
+You can click on @kbd{mouse-3} to bring up a context menu that
 contains these items. Dismiss the speedbar with @kbd{C-x 5 0}
 (@code{delete-frame}).
 
diff --git a/doc/misc/sem-user.texi b/doc/misc/sem-user.texi
index f11e0b83fa1..a8684a40b3a 100644
--- a/doc/misc/sem-user.texi
+++ b/doc/misc/sem-user.texi
@@ -1173,7 +1173,7 @@ the declaration line of the function or tag on the topmost line in the
 text area.  This allows you to keep that declaration line in view at
 all times, even if it is scrolls off the ``top'' of the screen.
 
-In addition, clicking @kbd{Mouse-1} on the header line opens a context
+In addition, clicking @kbd{mouse-1} on the header line opens a context
 menu that contains menu items for copying, killing, or narrowing to
 that tag.
 
@@ -1199,7 +1199,7 @@ Semantic Highlight Function minor mode highlights the declaration line
 of the current function or tag (that is to say, the first line that
 describes the rest of the construct).
 
-In addition, clicking @kbd{Mouse-3} on the highlighted declaration
+In addition, clicking @kbd{mouse-3} on the highlighted declaration
 line opens a context menu that contains menu items for copying,
 killing, or narrowing to that tag.
 
diff --git a/doc/misc/speedbar.texi b/doc/misc/speedbar.texi
index 377e412bb30..d43c521f76a 100644
--- a/doc/misc/speedbar.texi
+++ b/doc/misc/speedbar.texi
@@ -62,7 +62,7 @@ authors of other packages to provide speedbar summaries customized to
 the needs of that mode.
 
 Throughout this manual, activities are defined as ``clicking on'', or
-``expanding'' items.  Clicking means using @kbd{Mouse-2} on a
+``expanding'' items.  Clicking means using @kbd{mouse-2} on a
 button.  Expanding refers to clicking on an expansion button to display
 an expanded summary of the entry the expansion button is
 on.  @xref{Basic Navigation}.
@@ -316,29 +316,29 @@ with the mouse, or affected by the menu.
 The mouse bindings are:
 
 @table @kbd
-@item Mouse-1
+@item mouse-1
 Move cursor to that location.
-@item Mouse-2
-@itemx Double-Mouse-1
-Activate the current button.  @kbd{Double-Mouse-1} is called a @dfn{double
+@item mouse-2
+@itemx Double-mouse-1
+Activate the current button.  @kbd{Double-mouse-1} is called a @dfn{double
 click} on other platforms, and is useful for windows users with two
 button mice.
-@c Isn't it true that with two-button mice, the right button is Mouse-2?
-@c On GNU/Linux, the right button is Mouse-3.
-@item S-Mouse-2
-@itemx S-Double-Mouse-1
+@c Isn't it true that with two-button mice, the right button is mouse-2?
+@c On GNU/Linux, the right button is mouse-3.
+@item S-mouse-2
+@itemx S-Double-mouse-1
 @cindex power click
-This has the same effect as @kbd{Mouse-2}, except it is called a power
+This has the same effect as @kbd{mouse-2}, except it is called a power
 click.  This means that if a group with an expansion button @samp{+} is
 clicked, any caches are flushed, and subitems re-read.  If it is a name,
 it will be opened in a new frame.
-@item Mouse-3
+@item mouse-3
 Activate the speedbar menu.  The item selected affects the line clicked,
 not the line where the cursor was.
-@item Mouse-1 @r{(mode line)}
+@item mouse-1 @r{(mode line)}
 Activate the menu.  This affects the item the cursor is on before the
 click, since the mouse was not clicked on anything.
-@item C-Mouse-1
+@item C-mouse-1
 Buffers sub-menu.  The buffer in the attached frame is switched.
 @end table
 
@@ -355,7 +355,7 @@ You can display different data by using different display modes.  These
 specialized modes make it easier to navigate the relevant pieces of
 information, such as files and directories, or buffers.
 
-In the main menu, found by clicking @kbd{Mouse-3}, there is a submenu
+In the main menu, found by clicking @kbd{mouse-3}, there is a submenu
 labeled @samp{Displays}.  This submenu lets you easily choose between
 different display modes.
 
diff --git a/doc/misc/viper.texi b/doc/misc/viper.texi
index 3f81f67beb4..6b169f3c8e6 100644
--- a/doc/misc/viper.texi
+++ b/doc/misc/viper.texi
@@ -2591,7 +2591,7 @@ occurrence of the pattern to search for.
 
 Note: while loading initially, Viper binds this mouse action only if it is
 not already bound to something else.  If you want to use the mouse-search
-feature, and the @kbd{Meta-Shift-Mouse-1} mouse action is already bound to
+feature, and the @kbd{Meta-Shift-mouse-1} mouse action is already bound to
 something else, you can rebind the mouse-search feature by setting
 @code{viper-mouse-search-key} to something else in
 your Viper customization file:
@@ -2669,8 +2669,8 @@ purpose of mouse search and mouse insert.  By default, this is set to
 @code{double-click-time} in Emacs and to
 @code{mouse-track-multi-click-time} milliseconds in XEmacs.
 @end table
-@kindex @kbd{S-Mouse-1}
-@kindex @kbd{S-Mouse-2}
+@kindex @kbd{S-mouse-1}
+@kindex @kbd{S-mouse-2}
 @kindex @kbd{meta shift button1up}
 @kindex @kbd{meta shift button2up}
 @vindex @code{viper-multiclick-timeout}
@@ -4428,7 +4428,7 @@ The following two mouse actions are normally bound to special search and
 insert commands in of Viper:
 
 @table @kbd
-@item S-Mouse-1
+@item S-mouse-1
 Holding Shift and clicking mouse button 1 will
 initiate search for
 a region under the mouse pointer.
@@ -4437,7 +4437,7 @@ binding only if this mouse action is not
 already bound to something else.
 @xref{Viper Specials}, for more information.
 
-@item S-Mouse-2
+@item S-mouse-2
 Holding Shift and clicking button 2 of the mouse will
 insert a region surrounding the mouse pointer.
 This command can also take a prefix argument.
@@ -4445,8 +4445,8 @@ Note: Viper sets this binding only if this mouse action is not
 already bound to something else.
 @xref{Viper Specials}, for more details.
 @end table
-@kindex @kbd{S-Mouse-1}
-@kindex @kbd{S-Mouse-2}
+@kindex @kbd{S-mouse-1}
+@kindex @kbd{S-mouse-2}
 @kindex @kbd{meta button1up}
 @kindex @kbd{meta button2up}
 
diff --git a/doc/misc/widget.texi b/doc/misc/widget.texi
index 49606ed9692..953bcae3ef2 100644
--- a/doc/misc/widget.texi
+++ b/doc/misc/widget.texi
@@ -243,8 +243,8 @@ If point is not located on a button, invoke the binding in
 @code{widget-global-map} (by default the global map).
 @end deffn
 
-@kindex Mouse-2 @r{(on button widgets})
-@item Mouse-2
+@kindex mouse-2 @r{(on button widgets})
+@item mouse-2
 @deffn Command widget-button-click @var{event}
 Invoke the button at the location of the mouse pointer.  If the mouse
 pointer is located in an editable text field, invoke the binding in
@@ -456,7 +456,7 @@ There is a standard widget keymap which you might find useful.
 @findex widget-button-click
 @defvr Const widget-keymap
 @key{TAB} and @kbd{C-@key{TAB}} are bound to @code{widget-forward} and
-@code{widget-backward}, respectively.  @key{RET} and @kbd{Mouse-2}
+@code{widget-backward}, respectively.  @key{RET} and @kbd{mouse-2}
 are bound to @code{widget-button-press} and
 @code{widget-button-click}.
 @end defvr
diff --git a/doc/misc/woman.texi b/doc/misc/woman.texi
index 59320d23684..f1fbba6151b 100644
--- a/doc/misc/woman.texi
+++ b/doc/misc/woman.texi
@@ -671,19 +671,19 @@ to other man pages.  If these man pages are installed then WoMan can
 easily be directed to follow the reference, i.e., to find and format the
 man page.  When the mouse is passed over a correctly formatted reference
 it is highlighted, in which case clicking the middle button
-@kbd{Mouse-2} will cause WoMan to follow the reference.  Alternatively,
+@kbd{mouse-2} will cause WoMan to follow the reference.  Alternatively,
 when point is over such a reference the key @key{RET} will follow the
 reference.
 
 Any word in the buffer can be used as a reference by clicking
-@kbd{Mouse-2} over it provided the Meta key is also used (although in
+@kbd{mouse-2} over it provided the Meta key is also used (although in
 general such a ``reference'' will not lead to a man page).
 Alternatively, the key @kbd{r} allows completion to be used to select a
 reference to follow, based on the word at point as default.
 
 @table @kbd
-@item @kbd{Mouse-2}
-@kindex Mouse-2
+@item @kbd{mouse-2}
+@kindex mouse-2
 @findex woman-mouse-2
 Run WoMan with word under mouse as topic (@code{woman-mouse-2}).  The
 word must be mouse-highlighted unless @code{woman-mouse-2} is used with