[Emacs-diffs] Changes to emacs/man/custom.texi

[Richard M. Stallman]

Index: emacs/man/custom.texi
diff -u emacs/man/custom.texi:1.97 emacs/man/custom.texi:1.98
--- emacs/man/custom.texi:1.97  Mon Dec 19 23:33:53 2005
+++ emacs/man/custom.texi       Fri Dec 23 01:46:33 2005
@@ -34,7 +34,7 @@
 @menu
 * Minor Modes::                Each minor mode is one feature you can turn on
                          independently of any others.
-* Easy Customization::  Convenient way to browse and change user options.
+* Easy Customization::  Convenient way to browse and change settings.
 * Variables::          Many Emacs commands examine Emacs variables
                          to decide what to do; by setting variables,
                          you can control their functioning.
@@ -183,31 +183,31 @@
 @node Easy Customization
 @section Easy Customization Interface
 
address@hidden user option
-  Emacs has many @dfn{user options} which have values that you can set
-in order to customize various commands.  Many user options are
-documented in this manual.  Most user options are actually Lisp
-variables (@pxref{Variables}), so their names appear in the Variable
-Index (@pxref{Variable Index}).  The rest are faces and their
-attributes (@pxref{Faces}).
address@hidden settings
+  Emacs has many @dfn{settings} which have values that you can specify
+in order to customize various commands.  Many are documented in this
+manual.  Most settings are @dfn{user options}---that is to say, Lisp
+variables (@pxref{Variables})---so their names appear in the Variable
+Index (@pxref{Variable Index}).  The other settings are faces and
+their attributes (@pxref{Faces}).
 
 @findex customize
 @cindex customization buffer
-  You can browse interactively through the user options and change
-some of them using @kbd{M-x customize}.  This command creates a
address@hidden buffer}, which offers commands to navigate through
-a logically organized structure of the Emacs user options; you can
-also use it to edit and set their values, and to save settings
-permanently in your @file{~/.emacs} file (@pxref{Init File}).
+  You can browse interactively through settings and change them using
address@hidden customize}.  This command creates a @dfn{customization
+buffer}, which offers commands to navigate through a logically
+organized structure of the Emacs settings; you can also use it to edit
+and set their values, and to save settings permanently in your
address@hidden/.emacs} file (@pxref{Init File}).
 
   The appearance of the example buffers in this section is typically
 different under a window system, since faces are then used to indicate
-the active fields and other features.
+buttons and editable fields.
 
 @menu
-* Groups: Customization Groups.   How options are classified in a structure.
-* Browsing: Browsing Custom.   Browsing and searching for options and faces.
-* Changing a Variable::      How to edit a value and set an option.
+* Groups: Customization Groups.   How settings are classified in a structure.
+* Browsing: Browsing Custom.   Browsing and searching for settings.
+* Changing a Variable::      How to edit an option's value and set the option.
 * Saving Customizations::    Specifying the file for saving customizations.
 * Face Customization::       How to edit the attributes of a face.
 * Specific Customization::   Making a customization buffer for specific
@@ -220,9 +220,9 @@
 @subsection Customization Groups
 @cindex customization groups
 
-  For customization purposes, user options are organized into
address@hidden to help you find them.  Groups are collected into bigger
-groups, all the way up to a master group called @code{Emacs}.
+  For customization purposes, settings are organized into @dfn{groups}
+to help you find them.  Groups are collected into bigger groups, all
+the way up to a master group called @code{Emacs}.
 
   @kbd{M-x customize} creates a customization buffer that shows the
 top-level @code{Emacs} group and the second-level groups immediately
@@ -255,59 +255,57 @@
 line.
 
 @cindex editable fields (customization buffer)
address@hidden active fields (customization buffer)
address@hidden buttons (customization buffer)
   Most of the text in the customization buffer is read-only, but it
-typically includes some @dfn{editable fields} that you can edit.  There
-are also @dfn{active fields}; this means a field that does something
-when you @dfn{invoke} it.  To invoke an active field, either click on it
-with @kbd{Mouse-1}, or move point to it and type @key{RET}.
+typically includes some @dfn{editable fields} that you can edit.
+There are also @dfn{buttons}, which do something when you @dfn{invoke}
+them.  To invoke a button, either click on it with @kbd{Mouse-1}, or
+move point to it and type @key{RET}.
 
   For example, the phrase @samp{[Go to Group]} that appears in a
-second-level group is an active field.  Invoking the @samp{[Go to
-Group]} field for a group creates a new customization buffer, which
-shows that group and its contents.  This field is a kind of hypertext
-link to another group.
-
-  The @code{Emacs} group includes a few user options itself, but
-mainly it contains other groups, which contain more groups, which
-contain the user options.  By browsing the hierarchy of groups, you
-will eventually find the feature you are interested in customizing.
-Then you can use the customization buffer to set the options
-pertaining to that feature.  You can also go straight to a particular
-group by name, using the command @kbd{M-x customize-group}.
+second-level group is a button.  Invoking it creates a new
+customization buffer, which shows that group and its contents.  This
+is a kind of hypertext link to another group.
+
+  The @code{Emacs} group includes a few settings, but mainly it
+contains other groups, which contain more groups, which contain the
+settings.  By browsing the hierarchy of groups, you will eventually
+find the feature you are interested in customizing.  Then you can use
+the customization buffer to set that feature's settings.  You can also
+go straight to a particular group by name, using the command @kbd{M-x
+customize-group}.
 
 @node Browsing Custom
 @subsection Browsing and Searching for Options and Faces
 @findex customize-browse
-You can use @kbd{M-x customize} to browse the groups and options, but
-often @kbd{M-x customize-browse} is a more efficient alternative.
-That is because it lets you view the structure of customization groups
-on a larger scale.  This command creates a special kind of
-customization buffer which shows only the names of the groups (and
-variables and faces), and their structure.
+
+  @kbd{M-x customize-browse} is another way to browse the available
+settings.  This command creates a special customization buffer which
+shows only the names of groups and settings, and puts them in a
+structure.
 
   In this buffer, you can show the contents of a group by invoking
 @samp{[+]}.  When the group contents are visible, this button changes to
 @samp{[-]}; invoking that hides the group contents.
 
-  Each group, variable, or face name in this buffer has an active field
-which says @samp{[Group]}, @samp{[Option]} or @samp{[Face]}.  Invoking
-that active field creates an ordinary customization buffer showing just
-that group and its contents, just that variable, or just that face.
-This is the way to set values in it.
-
-  If you can guess part of the name of the options you are interested
-in, then sometimes @kbd{M-x customize-apropos} can be another useful
-way to search for options.  However, unlike @code{customize} and
address@hidden, @code{customize-apropos} can only find
-options that are loaded in the current Emacs session.  @xref{Specific
-Customization,, Customizing Specific Items}.
+  Each setting in this buffer has a button which says @samp{[Group]},
address@hidden or @samp{[Face]}.  Invoking this button creates an
+ordinary customization buffer showing just that group and its
+contents, just that user option, or just that face.  This is the way
+to change settings that you find with @kbd{M-x customize-browse}.
+
+  If you can guess part of the name of the settings you are interested
+in, @kbd{M-x customize-apropos} is another way to search for settings.
+However, unlike @code{customize} and @code{customize-browse},
address@hidden can only find groups and settings that are
+loaded in the current Emacs session.  @xref{Specific Customization,,
+Customizing Specific Items}.
 
 @node Changing a Variable
 @subsection Changing a Variable
 
-  Here is an example of what a variable looks like in the
-customization buffer:
+  Here is an example of what a variable (a user option) looks like in
+the customization buffer:
 
 @smallexample
 Kill Ring Max: [Hide Value] 60
@@ -321,34 +319,32 @@
 buffer initially hides values that take up several lines.  Invoke
 @samp{[Show Value]} to show the value.
 
-  The line after the option name indicates the @dfn{customization state}
-of the variable: in the example above, it says you have not changed the
-option yet.  The word @samp{[State]} at the beginning of this line is
-active; you can get a menu of various operations by invoking it with
address@hidden or @key{RET}.  These operations are essential for
-customizing the variable.
+  The line after the variable name indicates the @dfn{customization
+state} of the variable: in the example above, it says you have not
+changed the option yet.  The @samp{[State]} button at the beginning of
+this line gives you a menu of various operations for customizing the
+variable.
 
   The line after the @samp{[State]} line displays the beginning of the
 variable's documentation string.  If there are more lines of
-documentation, this line ends with @samp{[More]}; invoke this to show
-the full documentation string.
+documentation, this line ends with a @samp{[More]} button; invoke that
+to show the full documentation string.
 
-  To enter a new value for @samp{Kill Ring Max}, move point to the value
-and edit it textually.  For example, you can type @kbd{M-d}, then insert
-another number.
-
-  When you begin to alter the text, you will see the @samp{[State]} line
-change to say that you have edited the value:
+  To enter a new value for @samp{Kill Ring Max}, move point to the
+value and edit it textually.  For example, you can type @kbd{M-d},
+then insert another number.  As you begin to alter the text, you will
+see the @samp{[State]} line change to say that you have edited the
+value:
 
 @smallexample
 [State]: EDITED, shown value does not take effect until you set or 
@address@hidden
                                                            save it.
 @end smallexample
 
address@hidden setting option value
-  Editing the value does not actually set the variable.  To do
-that, you must @dfn{set} it.  To do this, invoke the word
address@hidden and choose @samp{Set for Current Session}.
address@hidden settings, how to set
+  Editing the value does not actually set the variable.  To do that,
+you must @dfn{set} the variable.  To do this, invoke the
address@hidden button and choose @samp{Set for Current Session}.
 
   The state of the variable changes visibly when you set it:
 
@@ -357,23 +353,24 @@
 @end smallexample
 
    You don't have to worry about specifying a value that is not valid;
-setting the variable checks for validity and will not really install an
-unacceptable value.
+the @samp{Set for Current Session} operation checks for validity and
+will not install an unacceptable value.
 
 @kindex M-TAB @r{(customization buffer)}
 @findex widget-complete
-  While editing a value or field that is a file name, directory name,
+  While editing a field that is a file name, directory name,
 command name, or anything else for which completion is defined, you
 can type @address@hidden (@code{widget-complete}) to do completion.
 (@address@hidden @key{TAB}} and @kbd{C-M-i} do the same thing.)
 
   Some variables have a small fixed set of possible legitimate values.
-These variables don't let you edit the value textually.  Instead, an
-active field @samp{[Value Menu]} appears before the value; invoke this
-field to edit the value.  For a boolean ``on or off'' value, the active
-field says @samp{[Toggle]}, and it changes to the other value.
address@hidden Menu]} and @samp{[Toggle]} edit the buffer; the changes
-take effect when you use the @samp{Set for Current Session} operation.
+These variables don't let you edit the value textually.  Instead, a
address@hidden Menu]} button appears before the value; invoke this
+button to change the value.  For a boolean ``on or off'' value, the
+button says @samp{[Toggle]}, and it changes to the other value.
address@hidden Menu]} and @samp{[Toggle]} simply edit the buffer; the
+changes take real effect when you use the @samp{Set for Current
+Session} operation.
 
   Some variables have values with complex structure.  For example, the
 value of @code{file-coding-system-alist} is an association list.  Here
@@ -408,10 +405,10 @@
 
 @noindent
 Each association in the list appears on four lines, with several
-editable or ``active'' fields.  You can edit the regexps and coding
+editable fields and/or buttons.  You can edit the regexps and coding
 systems using ordinary editing commands.  You can also invoke
address@hidden Menu]} to switch to a kind of value---for instance, to
-specify a function instead of a pair of coding systems.
address@hidden Menu]} to switch to a different kind of value---for
+instance, to specify a function instead of a pair of coding systems.
 
 To delete an association from the list, invoke the @samp{[DEL]} button
 for that item.  To add an association, invoke @samp{[INS]} at the
@@ -424,19 +421,19 @@
 @kindex S-TAB @r{(customization buffer)}
 @findex widget-forward
 @findex widget-backward
-  Two special commands, @key{TAB} and @address@hidden, are useful for
-moving through the customization buffer.  @key{TAB}
-(@code{widget-forward}) moves forward to the next active or editable
-field; @address@hidden (@code{widget-backward}) moves backward to the
-previous active or editable field.
+  Two special commands, @key{TAB} and @address@hidden, are useful
+for moving through the customization buffer.  @key{TAB}
+(@code{widget-forward}) moves forward to the next button or editable
+field; @address@hidden (@code{widget-backward}) moves backward to
+the previous button or editable field.
 
   Typing @key{RET} on an editable field also moves forward, just like
 @key{TAB}.  We set it up this way because people often type @key{RET}
 when they are finished editing a field.  To insert a newline within an
 editable field, use @kbd{C-o} or @kbd{C-q C-j}.
 
address@hidden saving variable value
address@hidden customized variables, saving
address@hidden saving a setting
address@hidden settings, how to save
   Setting the variable changes its value in the current Emacs session;
 @dfn{saving} the value changes it for future sessions as well.  To
 save the variable, invoke @samp{[State]} and select the @samp{Save for
@@ -460,7 +457,7 @@
 
 @item Erase Customization
 This sets the variable to its standard value, and updates the text
-accordingly.  This also eliminates any saved value for the option,
+accordingly.  This also eliminates any saved value for the variable,
 so that you will get the standard value in future Emacs sessions.
 
 @item Use Backup Value
@@ -480,8 +477,7 @@
   The state of a group indicates whether anything in that group has been
 edited, set or saved.
 
-  Near the top of the customization buffer there are two lines
-containing several active fields:
+  Near the top of the customization buffer there are two lines of buttons:
 
 @smallexample
  [Set for Current Session] [Save for Future Sessions]
@@ -493,10 +489,10 @@
 Invoking @samp{[Finish]} either buries or kills this customization
 buffer according to the setting of the option
 @code{custom-buffer-done-kill}; the default is to bury the buffer.
-Each of the other fields performs an operation---set, save or
-reset---on each of the options in the buffer that could meaningfully
-be set, saved or reset.  They do not operate on options whose values
-are hidden, nor on subgroups.
+Each of the other buttons performs an operation---set, save or
+reset---on each of the settings in the buffer that could meaningfully
+be set, saved or reset.  They do not operate on settings whose values
+are hidden, nor on subgroups not visible in the buffer.
 
 @node Saving Customizations
 @subsection Saving Customizations
@@ -572,11 +568,12 @@
             [ ] Inherit: *
 @end smallexample
 
-  Each face attribute has its own line.  The @address@hidden field
+  Each face attribute has its own line.  The @address@hidden button
 before the attribute name indicates whether the attribute is
address@hidden; @samp{X} means that it is.  You can enable or disable the
-attribute by invoking that field.  When the attribute is enabled, you
-can change the attribute value in the usual ways.
address@hidden; @samp{[X]} means that it's enabled, and @samp{[ ]}
+means that it's disabled.  You can enable or disable the attribute by
+clicking that button.  When the attribute is enabled, you can change
+the attribute value in the usual ways.
 
   For the colors, you can specify a color name (use @kbd{M-x
 list-colors-display} for a list of them) or a hexadecimal color
@@ -608,9 +605,9 @@
 @node Specific Customization
 @subsection Customizing Specific Items
 
-  Instead of finding the options you want to change by moving down
-through the structure of groups, you can specify the particular variable,
-face, or group that you want to customize.
+  Instead of finding the setting you want to change by navigating the
+structure of groups, here are other ways to specify the settings that
+you want to customize.
 
 @table @kbd
 @item M-x customize-variable @key{RET} @var{variable} @key{RET}
@@ -620,17 +617,17 @@
 @item M-x customize-group @key{RET} @var{group} @key{RET}
 Set up a customization buffer with just one group, @var{group}.
 @item M-x customize-apropos @key{RET} @var{regexp} @key{RET}
-Set up a customization buffer with all the variables, faces and groups
-that match @var{regexp}.
+Set up a customization buffer with all the settings and groups that
+match @var{regexp}.
 @item M-x customize-changed-options @key{RET} @var{version} @key{RET}
-Set up a customization buffer with all the variables, faces and groups
+Set up a customization buffer with all the settings and groups
 whose meaning has changed since Emacs version @var{version}.
 @item M-x customize-saved
-Set up a customization buffer containing all variables and faces that you
+Set up a customization buffer containing all settings that you
 have saved with customization buffers.
 @item M-x customize-customized
-Set up a customization buffer containing all variables and faces that you
-have customized but not saved.
+Set up a customization buffer containing all settings that you have
+customized but not saved.
 @end table
 
 @findex customize-variable
@@ -639,8 +636,8 @@
 customize-variable} and specify the variable name.  This sets up the
 customization buffer with just one variable---the one that you asked
 for.  Editing, setting and saving the value work as described above,
-but only for the specified variable.  Minibuffer completion is very
-handy if you only know part of the name.  However, it only finds
+but only for the specified variable.  Minibuffer completion is handy
+if you only know part of the name.  However, this command can only see
 options that have been loaded in the current Emacs session.
 
 @findex customize-face
@@ -651,57 +648,56 @@
 @findex customize-group
   You can also set up the customization buffer with a specific group,
 using @kbd{M-x customize-group}.  The immediate contents of the chosen
-group, including user options, faces, and other groups, all appear
+group, including variables, faces, and other groups, all appear
 as well (even if not already loaded).  However, the subgroups' own
 contents are not included.
 
 @findex customize-apropos
   To control more precisely what to customize, you can use @kbd{M-x
-customize-apropos}.  You specify a regular expression as argument; then
-all @emph{loaded} options, faces and groups whose names match this
+customize-apropos}.  You specify a regular expression as argument;
+then all @emph{loaded} settings and groups whose names match this
 regular expression are set up in the customization buffer.  If you
-specify an empty regular expression, this includes @emph{all} groups,
-options and faces (but that takes a long time).
+specify an empty regular expression, this includes @emph{all} loaded
+groups and settings---which takes a long time to set up.
 
address@hidden customize-changed-options
address@hidden customize-changed
   When you upgrade to a new Emacs version, you might want to customize
-new options and options whose meanings or default values have changed.
-To do this, use @kbd{M-x customize-changed-options} and specify a
-previous Emacs version number using the minibuffer.  It creates a
-customization buffer which shows all the options (and groups) whose
-definitions have been changed since the specified version.  (Not just
-those that are already loaded.)
+new settings and settings whose meanings or default values have
+changed.  To do this, use @kbd{M-x customize-changed} and
+specify a previous Emacs version number using the minibuffer.  It
+creates a customization buffer which shows all the settings and groups
+whose definitions have been changed since the specified version, loading
+them if necessary.
 
 @findex customize-saved
 @findex customize-customized
-  If you change option values and then decide the change was a
-mistake, you can use two special commands to revisit your previous
-changes.  Use @kbd{M-x customize-saved} to look at the options that
-you have saved.  Use @kbd{M-x customize-customized} to look at the
-options that you have set but not saved.
+  If you change settings and then decide the change was a mistake, you
+can use two special commands to revisit your previous changes.  Use
address@hidden customize-saved} to look at the settings that you have saved.
+Use @kbd{M-x customize-customized} to look at the settings that you
+have set but not saved.
 
 @node Custom Themes
 @subsection Customization Themes
 @cindex custom themes
 
address@hidden themes} are collections of customized options that can be
-enabled or disabled as a unit.  You can use Custom themes to switch
-quickly and easily between various collections of settings, and to
-transfer such collections from one computer to another.
+  @dfn{Custom themes} are collections of settings that can be enabled
+or disabled as a unit.  You can use Custom themes to switch quickly
+and easily between various collections of settings, and to transfer
+such collections from one computer to another.
 
 @findex customize-create-theme
-To define a Custom theme, use the command
address@hidden customize-create-theme}, which brings up a buffer named
address@hidden Custom Theme*}.  At the top of the buffer is an editable
-field where you can specify the name of the theme.  To add a
-customization option to the theme, click on the @samp{INS} button to
-open up a field where you can insert the name of the option.  The
-current value of that option is applied to the theme.  After adding as
-many options as you like, click on @samp{Done} to save the Custom
-theme.
+  To define a Custom theme, use the command @kbd{M-x
+customize-create-theme}, which brings up a buffer named @samp{*New
+Custom Theme*}.  At the top of the buffer is an editable field where
+you can specify the name of the theme.  To add a customization option
+to the theme, click on the @samp{INS} button to open up a field where
+you can insert the name of the option.  The current value of that
+option is applied to the theme.  After adding as many options as you
+like, click on @samp{Done} to save the Custom theme.
 
 @vindex custom-theme-directory
-Saving a Custom theme named @var{foo} writes its definition into the
+  Saving a Custom theme named @var{foo} writes its definition into the
 file @address@hidden, in the directory @file{~/.emacs.d/}
 (you can specify the directory by setting
 @code{custom-theme-directory}).
@@ -747,25 +743,26 @@
 have a documentation string which describes what kind of value it should
 have and how the value will be used.
 
-  Lisp allows any variable to have any kind of value, but most variables
-that Emacs uses need a value of a certain type.  Often the value should
-always be a string, or should always be a number.  Sometimes we say that a
-certain feature is turned on if a variable is address@hidden,'' meaning
-that if the variable's value is @code{nil}, the feature is off, but the
-feature is on for @emph{any} other value.  The conventional value to use to
-turn on the feature---since you have to pick one particular value when you
-set the variable---is @code{t}.
+  Emacs Lisp allows any variable (with a few exceptions) to have any
+kind of value, but most variables that Emacs uses need a value of a
+certain type.  Often the value should always be a string, or should
+always be a number.  Sometimes we say that a certain feature is turned
+on if a variable is address@hidden,'' meaning that if the variable's
+value is @code{nil}, the feature is off, but the feature is on for
address@hidden other value.  The conventional value to use to turn on the
+feature---since you have to pick one particular value when you set the
+variable---is @code{t}.
 
   Emacs uses many Lisp variables for internal record keeping, but the
-most interesting variables for a non-programmer user are those that
-are also @dfn{user options}, the variables that are meant for users to
-change.  Each user option that you can set with the customization
-buffer is (if it is not a face) in fact a Lisp variable.  Emacs does
-not (usually) change the values of these variables; instead, you set
-the values, and thereby alter and control the behavior of certain
-Emacs commands.  Use of the customization buffer is explained above
-(@pxref{Easy Customization}); here we describe other aspects of Emacs
-variables.
+most interesting variables for a non-programmer user are those meant
+for users to change---the @dfn{user options}.
+
+  Each user option that you can set with the customization buffer is
+in fact a Lisp variable.  Emacs does not (usually) change the values
+of these variables; instead, you set the values, and thereby alter and
+control the behavior of certain Emacs commands.  Use of the
+customization buffer is explained above (@pxref{Easy Customization});
+here we describe other aspects of Emacs variables.
 
 @menu
 * Examining::          Examining or setting one variable's value.