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The structure of the Perl programming language encompasses both the syntactical rules of the language and the general ways in which programs are organized. Perl's design philosophy is expressed in the commonly cited motto " there's more than one way to do it ".
Perl favors language constructs that are concise and natural for humans to write, even where they complicate the Perl interpreter. [91] Perl's syntax reflects the idea that "things that are different should look different." [92] For example, scalars, arrays, and hashes have different leading sigils. Array indices and hash keys use different ...
The following outline is provided as an overview of and topical guide to the Perl programming language: Perl – high-level, general-purpose, interpreted, multi-paradigm, dynamic programming language. Perl was originally developed by Larry Wall in 1987 as a general-purpose Unix scripting language to make report processing easier. [1]
Perl (imperative, functional (can't be purely functional), object-oriented, class-oriented, aspect-oriented (through modules)) PHP (imperative, object-oriented, functional (can't be purely functional)) Pike (interpreted, general-purpose, high-level, cross-platform, dynamic programming language ) Prograph (dataflow, object-oriented (class-based ...
Perl provides three loop control keywords that all accept an optional loop label as an argument. If no label is specified, the keywords act on the innermost loop. Within nested loops, the use of labels enables control to move from an inner loop to an outer one, or out of the outer loop altogether.
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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 Data Language (abbreviated PDL) is a set of free software array programming extensions to the Perl programming language. PDL extends the data structures built into Perl, to include large multidimensional arrays , and adds functionality to manipulate those arrays as vector objects.