@item nobreak-space
The face for displaying no-break space characters (@pxref{Text
Display}).
+@item nobreak-hyphen
+The face for displaying no-break hyphen characters (@pxref{Text
+Display}).
@end table
The following faces control the appearance of parts of the Emacs
@code{overflow-newline-into-fringe} to @code{nil}; this causes Emacs
to continue or truncate lines that are exactly as wide as the window.
+ If you customize @code{fringe-mode} to remove the fringes on one or
+both sides of the window display, the features that display on the
+fringe are not available. Indicators of line continuation and
+truncation are an exception: when fringes are not available, Emacs
+uses the leftmost and rightmost character cells to indicate
+continuation and truncation with special ASCII characters, see
+@ref{Continuation Lines}, and @ref{Line Truncation}. This reduces the
+width available for displaying text on each line, because the
+character cells used for truncation and continuation indicators are
+reserved for that purpose. Since buffer text can include
+bidirectional text, and thus both left-to-right and right-to-left
+paragraphs (@pxref{Bidirectional Editing}), removing only one of the
+fringes still reserves two character cells, one on each side of the
+window, for truncation and continuation indicators, because these
+indicators are displayed on opposite sides of the window in
+right-to-left paragraphs.
+
@node Displaying Boundaries
@section Displaying Boundaries
specially: it displays @code{U+00A0} (no-break space) with the
@code{nobreak-space} face, and it displays @code{U+00AD} (soft
hyphen), @code{U+2010} (hyphen), and @code{U+2011} (non-breaking
-hyphen) with the @code{escape-glyph} face. To disable this, change
+hyphen) with the @code{nobreak-hyphen} face. To disable this, change
the variable @code{nobreak-char-display} to @code{nil}. If you give
this variable a non-@code{nil} and non-@code{t} value, Emacs instead
displays such characters as a highlighted backslash followed by a
@cindex glyphless characters
@cindex characters with no font glyphs
+@cindex glyphless-char face
On graphical displays, some characters may have no glyphs in any of
the fonts available to Emacs. These @dfn{glyphless characters} are
normally displayed as boxes containing the hexadecimal character code.
Similarly, on text terminals, characters that cannot be displayed
using the terminal encoding (@pxref{Terminal Coding}) are normally
displayed as question signs. You can control the display method by
-customizing the variable @code{glyphless-char-display-control}.
-@xref{Glyphless Chars,, Glyphless Character Display, elisp, The Emacs
-Lisp Reference Manual}, for details.
+customizing the variable @code{glyphless-char-display-control}. You
+can also customize the @code{glyphless-char} face to make these
+characters more prominent on display. @xref{Glyphless Chars,,
+Glyphless Character Display, elisp, The Emacs Lisp Reference Manual},
+for details.
@cindex curly quotes
@cindex curved quotes
makes it local to the current buffer; until that time, the default
value, which is normally @code{nil}, is in effect.
-@vindex truncate-partial-width-windows
If a split window becomes too narrow, Emacs may automatically enable
line truncation. @xref{Split Window}, for the variable
@code{truncate-partial-width-windows} which controls this.