The fourth edition of “Programming in Perl” was awaited in Russia by both programmers and system administrators. And here is an update to the description of the Perl language, which has continued to actively develop over the past five years, before you. This time Camel discusses the current version of Perl 5.14 and provides an overview of some of the features of the upcoming Perl 5.16.

Unicode is becoming increasingly important in word processing, and Perl offers the best and most painless support for this standard , tightly integrating Unicode across the board, including Perl's popular regular expression engine. Both Unicode and regular expressions are given a lot of attention in the book.

The fourth edition covers such important features of the Perl language as new keywords and syntax constructs, input/output levels and encodings, new escape sequences, standard support Unicode 6.0, group graphemes and Unicode character properties, named preserving groups in regular expressions, recursive and grammatical patterns, an expanded overview of the CPAN archive, and modern programming best practices. The material is illustrated with many interesting examples. And if you are looking for a reference book on the Perl language, then this is here.