the most frequently used subset of the language. You might also check
out the very handy, inexpensive, and compact I<Perl 5 Desktop
Reference>, especially when the thought of lugging the 676-page Camel
-around doesn't make much sense.
+around doesn't make much sense. I<Mastering Regular Expressions>, by
+Jeffrey Friedl, is a reference work that covers the art and
+implementation
+of regular expressions in various languages including Perl.
+
+ Mastering Regular Expressions (the Hip Owl Book):
+ ISBN 1-56592-257-3 (English)
Programming Perl, Second Edition (the Camel Book):
ISBN 1-56592-149-6 (English)
C<${1}000>. Basically, the operation of interpolation should not be confused
with the operation of matching a backreference. Certainly they mean two
different things on the I<left> side of the C<s///>.
+
+=head2 SEE ALSO
+
+"Mastering Regular Expressions" (see L<perlbook>) by Jeffrey Friedl.