\x{263a} wide hex char (example: SMILEY)
\c[ control char (example: ESC)
\N{name} named Unicode character
+ \N{U+263D} Unicode character (example: FIRST QUARTER MOON)
The character following C<\c> is mapped to some other character by
converting letters to upper case and then (on ASCII systems) by inverting
'@', the letters, '[', '\', ']', '^', '_' and '?' will work, resulting
in 0x00 through 0x1F and 0x7F.
-B<NOTE>: Unlike C and other languages, Perl has no \v escape sequence for
-the vertical tab (VT - ASCII 11), but you may use C<\ck> or C<\x0b>.
+C<\N{U+I<wide hex char>}> means the Unicode character whose Unicode ordinal
+number is I<wide hex char>.
+For documentation of C<\N{name}>, see L<charnames>.
-The following escape sequences are available in constructs that interpolate
+B<NOTE>: Unlike C and other languages, Perl has no C<\v> escape sequence for
+the vertical tab (VT - ASCII 11), but you may use C<\ck> or C<\x0b>. (C<\v>
+does have meaning in regular expression patterns in Perl, see L<perlre>.)
+
+The following escape sequences are available in constructs that interpolate,
but not in transliterations.
X<\l> X<\u> X<\L> X<\U> X<\E> X<\Q>
C<\u> and C<\U> is taken from the current locale. See L<perllocale>.
If Unicode (for example, C<\N{}> or wide hex characters of 0x100 or
beyond) is being used, the case map used by C<\l>, C<\L>, C<\u> and
-C<\U> is as defined by Unicode. For documentation of C<\N{name}>,
-see L<charnames>.
+C<\U> is as defined by Unicode.
All systems use the virtual C<"\n"> to represent a line terminator,
called a "newline". There is no such thing as an unvarying, physical