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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.
Contrast with javadoc which is specialized to documenting Java classes. By convention, module documentation typically follows the structure of a Unix man page. The language of Perl is defined by the single implementation (referred to as "perl") and is added to (and in rare occasions taken away from) each new release.
Many modern Perl applications use the Moose object system. [citation needed] Moose is built on top of Class::MOP, a meta-object protocol, providing complete introspection for all Moose-using classes. Thus you can ask classes about their attributes, parents, children, methods, etc. using a simple API. Moose classes: A class has zero or more ...
Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, [9] there are various backronyms in use, including "Practical Extraction and Reporting Language". [10] Perl was developed by Larry Wall in 1987 [11] as a general-purpose Unix scripting language to make report processing ...
#!/usr/bin/perl – called the "shebang line", after the hash symbol (#) and ! (bang) at the beginning of the line. It is also known as the interpreter directive. # – the number sign, also called the hash symbol. In Perl, the # indicates the start of a comment. It instructs perl to ignore the rest of the line and not execute it as script code.
The order of inheritance affects the class semantics. In the above ambiguity, class B and its ancestors would be checked before class C and its ancestors, so the method in A would be inherited through B. This is shared with Io and Picolisp. In Perl, this behavior can be overridden using the mro or other modules to use C3 linearization or other ...
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).
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.