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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.
Perl 5 hashes are flat: keys are strings and values are scalars. However, values may be references to arrays or other hashes, and the standard Perl 5 module Tie::RefHash enables hashes to be used with reference keys. A hash variable is marked by a % sigil, to distinguish it from scalar, array, and other data types.
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]
This comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others manipulate data structures. Object construction and destruction
The STD is a full grammar for Perl 6 and is written in Perl 6. In theory, anything capable of parsing the STD and generating executable code is a suitable bootstrapping system for Perl 6. kp6 is currently compiled by mp6 and can work with multiple backends. [27] [28] mp6 and kp6 are not full Perl 6 implementations and are designed only to ...
Strawberry Perl is a distribution of the Perl programming language for the Microsoft Windows platform. Additionally, strawberry contains a fully featured Mingw-w64 C/C++ compiler with many libraries included. While most other distributions rely on the user having software development tools already set up to install certain Perl components ...
ActivePerl is a distribution of Perl from ActiveState (formerly part of Sophos) for Windows, macOS, Linux, Solaris, AIX and HP-UX. A few main editions are available, including: Community (free, for development use only), and several paid tiers up to Enterprise that includes support for OEM licensing.
For those not using Perl 5.10, the Perl documentation describes a half-dozen ways to achieve the same effect by using other control structures. There is also a Switch module, which provides functionality modeled on that of sister language Raku. It is implemented using a source filter, so its use is unofficially discouraged. [6]