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Perl is an open-source programming language whose first version, 1.0, was released in 1987. The following table contains the Perl 5 version history, showing its release versions. Not all versions are covered yet.
The Artistic License – The original Artistic License 1.0, the one which is still used by Perl and CPAN; They use a disjunction of the Artistic License 1.0 and the GNU GPL for Perl 5 and above. The Clarified Artistic License; Version 2.0 The Artistic License 2.0 – It's e.g. used by Parrot. 2.0 revision RFC process; Prominent uses
The Perl On New Internal Engine (PONIE) project existed from 2003 until 2006. It was to be a bridge between Perl 5 and 6, and an effort to rewrite the Perl 5 interpreter to run on the Perl 6 Parrot virtual machine. The goal was to ensure the future of the millions of lines of Perl 5 code at thousands of companies around the world. [53]
Perl 5 has built-in, language-level support for associative arrays. Modern Perl refers to associative arrays as hashes; the term associative array is found in older documentation but is considered somewhat archaic. Perl 5 hashes are flat: keys are strings and values are scalars.
Distributed under both the GNU General Public License and the Artistic License. Pisg – Perl IRC Statistics Generator, an open-source Internet Relay Chat (IRC) log file analysis and statistical visualization program that analyzes various formats of log files from IRC clients and bots and generates HTML pages containing statistics about the ...
Perl programmers may initialize a hash (or associative array) from a list of key/value pairs. If the keys are separated from the values with the => operator (sometimes called a fat comma), rather than a comma, they may be unquoted (barewords [5]). The following lines are equivalent:
Learning Perl, also known as the llama book, [1] is a tutorial book for the Perl programming language, and is published by O'Reilly Media. The first edition (1993) was authored solely by Randal L. Schwartz , and covered Perl 4.
Perl Programming Documentation, also called perldoc, is the name of the user manual for the Perl 5 programming language. It is available in several different formats, including online in HTML and PDF. The documentation is bundled with Perl in its own format, known as Plain Old Documentation (pod).