@code{(point-min)}.
@end defun
- Here's an easy way to use @code{next-overlay-change} to search for the
-next character which gets a non-@code{nil} @code{happy} property from
+ Here's a function which uses @code{next-overlay-change} to search
+for the next character which gets a given property @code{prop} from
either its overlays or its text properties (@pxref{Property Search}):
@smallexample
(defun find-overlay-prop (prop)
(save-excursion
(while (and (not (eobp))
- (not (get-char-property (point) 'happy)))
+ (not (get-char-property (point) prop)))
(goto-char (min (next-overlay-change (point))
- (next-single-property-change (point) 'happy))))
+ (next-single-property-change (point) prop))))
(point)))
@end smallexample
+ Now you can search for a @code{happy} property like this:
+
+@smallexample
+(find-overlay-prop 'happy)
+@end smallexample
+
@node Width
@section Width
A @dfn{face} is a named collection of graphical attributes: font
family, foreground color, background color, optional underlining, and
many others. Faces are used in Emacs to control the style of display of
-particular parts of the text or the frame.
+particular parts of the text or the frame. @xref{Standard Faces,,,
+emacs, The GNU Emacs Manual}, for the list of faces Emacs normally
+comes with.
@cindex face id
Each face has its own @dfn{face number}, which distinguishes faces at
face name a special meaning in one frame if you wish.
@menu
-* Standard Faces:: The faces Emacs normally comes with.
* Defining Faces:: How to define a face with @code{defface}.
* Face Attributes:: What is in a face?
* Attribute Functions:: Functions to examine and set face attributes.
that handle a range of character sets.
@end menu
-@node Standard Faces
-@subsection Standard Faces
-
- This table lists all the standard faces and their uses. Most of them
-are used for displaying certain parts of the frames or certain kinds of
-text; you can control how those places look by customizing these faces.
-
-@table @code
-@item default
-@kindex default @r{(face name)}
-This face is used for ordinary text.
-
-@item mode-line
-@kindex mode-line @r{(face name)}
-This face is used for the mode line of the selected window, and for
-menu bars when toolkit menus are not used.
-
-@item modeline
-@kindex modeline @r{(face name)}
-This is an alias for the @code{mode-line} face, for compatibility with
-old Emacs versions.
-
-@item mode-line-inactive
-@kindex mode-line-inactive @r{(face name)}
-This face is used for mode lines of non-selected windows.
-This face inherits from @code{mode-line}, so changes
-in that face affect all windows.
-
-@item header-line
-@kindex header-line @r{(face name)}
-This face is used for the header lines of windows that have them.
-
-@item menu
-This face controls the display of menus, both their colors and their
-font. (This works only on certain systems.)
-
-@item fringe
-@kindex fringe @r{(face name)}
-This face controls the default colors of window fringes, the thin
-areas on either side that are used to display continuation and
-truncation glyphs. Other faces used to display bitmaps in the fringe
-are implicitly merged with this face.
-
-@item minibuffer-prompt
-@kindex minibuffer-prompt @r{(face name)}
-@vindex minibuffer-prompt-properties
-This face is used for the text of minibuffer prompts. By default,
-Emacs automatically adds this face to the value of
-@code{minibuffer-prompt-properties}, which is a list of text
-properties used to display the prompt text.
-
-@item scroll-bar
-@kindex scroll-bar @r{(face name)}
-This face controls the colors for display of scroll bars.
-
-@item tool-bar
-@kindex tool-bar @r{(face name)}
-This face is used for display of the tool bar, if any.
-
-@item region
-@kindex region @r{(face name)}
-This face is used for highlighting the region in Transient Mark mode.
-
-@item secondary-selection
-@kindex secondary-selection @r{(face name)}
-This face is used to show any secondary selection you have made.
-
-@item highlight
-@kindex highlight @r{(face name)}
-This face is meant to be used for highlighting for various purposes.
-
-@item mode-line-highlight
-@kindex mode-line-highlight @r{(face name)}
-This face is used for highlighting something on @code{mode-line} or
-@code{header-line} for various purposes.
-
-@item trailing-whitespace
-@kindex trailing-whitespace @r{(face name)}
-This face is used to display excess whitespace at the end of a line,
-if @code{show-trailing-whitespace} is non-@code{nil}.
-
-@item escape-glyph
-@kindex escape-glyph @r{(face name)}
-This face is used to display control characters and escape glyphs.
-@end table
-
- In contrast, these faces are provided to change the appearance of text
-in specific ways. You can use them on specific text, when you want
-the effects they produce.
-
-@table @code
-@item bold
-@kindex bold @r{(face name)}
-This face uses a bold font, if possible. It uses the bold variant of
-the frame's font, if it has one. It's up to you to choose a default
-font that has a bold variant, if you want to use one.
-
-@item italic
-@kindex italic @r{(face name)}
-This face uses the italic variant of the frame's font, if it has one.
-
-@item bold-italic
-@kindex bold-italic @r{(face name)}
-This face uses the bold italic variant of the frame's font, if it has
-one.
-
-@item underline
-@kindex underline @r{(face name)}
-This face underlines text.
-
-@item fixed-pitch
-@kindex fixed-pitch @r{(face name)}
-This face forces use of a particular fixed-width font.
-
-@item variable-pitch
-@kindex variable-pitch @r{(face name)}
-This face forces use of a particular variable-width font. It's
-reasonable to customize this to use a different variable-width font, if
-you like, but you should not make it a fixed-width font.
-
-@item shadow
-@kindex shadow @r{(face name)}
-This face is used for making the text less noticeable than the
-surrounding ordinary text.
-@end table
-
-@defvar show-trailing-whitespace
-@tindex show-trailing-whitespace
-If this variable is non-@code{nil}, Emacs uses the
-@code{trailing-whitespace} face to display any spaces and tabs at the
-end of a line.
-@end defvar
-
@node Defining Faces
@subsection Defining Faces
Non-@code{nil} means do underline; @code{nil} means don't.
@end defun
+@defun set-face-inverse-video-p face inverse-video-p &optional frame
+This function sets the @code{:inverse-video} attribute of face
+@var{face}.
+@end defun
+
@defun invert-face face &optional frame
-This function inverts the @code{:inverse-video} attribute of face
-@var{face}. If the attribute is @code{nil}, this function sets it to
-@code{t}, and vice versa.
+This function swaps the foreground and background colors of face
+@var{face}.
@end defun
These functions examine the attributes of a face. If you don't
value for that attribute.
@defun face-foreground face &optional frame inherit
-@defunx face-background face &optional frame
+@defunx face-background face &optional frame inherit
These functions return the foreground color (or background color,
respectively) of face @var{face}, as a string.
@item
With a region that is active. In Transient Mark mode, the region is
-highlighted with the face @code{region} (@pxref{Standard Faces}).
+highlighted with the face @code{region} (@pxref{Standard Faces,,,
+emacs, The GNU Emacs Manual}).
@item
With special glyphs. Each glyph can specify a particular face