wasting lots of time when there is no match. The default is 12,000.
@cindex Show Paren mode
+@cindex highlighting matching parentheses
@findex show-paren-mode
- When using X Windows, you can request a more powerful alternative kind
-of automatic parenthesis matching by enabling Show Paren mode. This
-mode turns off the usual kind of matching parenthesis display and
-instead uses highlighting to show what matches. Whenever point is after
-a close parenthesis, the close parenthesis and its matching open
-parenthesis are both highlighted; otherwise, if point is before an open
-parenthesis, the matching close parenthesis is highlighted. (There is
-no need to highlight the open parenthesis after point because the cursor
-appears on top of that character.) Use the command @kbd{M-x
-show-paren-mode} to enable or disable this mode.
+ You can also request a more powerful alternative kind of automatic
+parenthesis matching by enabling Show Paren mode. This mode turns off
+the usual kind of matching parenthesis display and instead uses
+highlighting to show what matches. Whenever point is after a close
+parenthesis, the close parenthesis and its matching open parenthesis are
+both highlighted; otherwise, if point is before an open parenthesis, the
+matching close parenthesis is highlighted. (There is no need to
+highlight the open parenthesis after point because the cursor appears on
+top of that character.) Use the command @kbd{M-x show-paren-mode} to
+enable or disable this mode.
+
+ By default, @code{show-paren-mode} uses colors to highlight the
+parentheses. However, if your display doesn't support colors, you can
+customize the faces @code{show-paren-match-face} and
+@code{show-paren-mismatch-face} to use other attributes, such as bold or
+underline. @xref{Face Customization}.
@node Comments
@section Manipulating Comments