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For example, in Tim Bunce's Perl DBI application programming interface (API), the arguments to the API can be the text of SQL queries; thus it is possible to program in multiple languages at the same time (e.g., for generating a Web page using HTML, JavaScript, and SQL in a here document).
Perl language structure. 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".
978-0-596-00492-7 (print), 978-1-4493-9890-3 (ebook) Programming Perl, best known as the Camel Book among programmers, [1] is a book about writing programs using the Perl programming language, revised as several editions (1991–2012) to reflect major language changes since Perl version 4. Editions have been co-written by the creator of Perl ...
Impatient Perl – for readers with previous programming experience. Learn Perl in about a week. Learning Perl the Hard Way – for people who know another programming language. Higher-Order Perl – advanced programming in Perl; Perl phrasebook – compare equivalent examples of Perl and Python code, on the Python Wiki; Perl scripts
A "Hello, World!" program is generally a simple computer program that emits (or displays) to the screen (often the console) a message similar to "Hello, World!" while ignoring any user input. A small piece of code in most general-purpose programming languages, this program is used to illustrate a language's basic syntax.
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. It also provides tools for image processing, machine ...
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. All subsequent editions have covered Perl 5. The second (1997) edition was coauthored with Tom Christiansen and the ...
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. The loop control keywords are treated as ...