character set matching whitespace characters, repeated any number of
times.
- To enter the same regexp interactively, you would type @key{TAB} to
-enter a tab, and @kbd{C-j} to enter a newline. (When typed
-interactively, @kbd{C-j} should be preceded by a @kbd{C-q}, to prevent
-Emacs from running the command bound to a newline.) You would also type
-single backslashes as themselves, instead of doubling them for Lisp
-syntax.
+ To enter the same regexp in incremental search, you would type
+@key{TAB} to enter a tab, and @kbd{C-j} to enter a newline. You would
+also type single backslashes as themselves, instead of doubling them
+for Lisp syntax. In commands that use ordinary minibuffer input to
+read a regexp, you would quote the @kbd{C-j} by preceding it with a
+@kbd{C-q} to prevent @kbd{C-j} from exiting the minibuffer.
@ignore
@c I commented this out because it is missing vital information