\x1b hex char (ESC)
\x{263a} wide hex char (SMILEY)
\c[ control char (ESC)
+ \C{name} named char
\l lowercase next char
\u uppercase next char
\Q quote non-word characters till \E
If C<use locale> is in effect, the case map used by C<\l>, C<\L>, C<\u>
-and C<\U> is taken from the current locale. See L<perllocale>.
+and C<\U> is taken from the current locale. See L<perllocale>. For
+documentation of C<\C{name}>, see L<charnames>.
All systems use the virtual C<"\n"> to represent a line terminator,
called a "newline". There is no such thing as an unvarying, physical