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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_language_structure
Overview of and topical guide to Perl
guide to the Perl programming language: Perl – high-level, general-purpose, interpreted, multi-paradigm, dynamic programming language. Perl was originally
Outline of the Perl programming language
Outline_of_the_Perl_programming_language
Interpreted programming language first released in 1987
Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, there are various backronyms
Perl
Programming language derived from Perl
Raku is a member of the Perl family of programming languages. Formerly named Perl 6, it was renamed in October 2019. Raku introduces elements of many
Raku_(programming_language)
Array programming library for Perl
Perl Data Language (abbreviated PDL) is a set of free software array programming extensions to the Perl programming language. PDL extends the data structures
Perl_Data_Language
Form of source code, without regard to meaning
is code structured and ordered restricted to computer language rules. Like a natural language, a computer language (i.e. a programming language) defines
Syntax (programming languages)
Syntax_(programming_languages)
Perl module software repository
model and began as a place to unify the structure of scattered Perl archives. Like many programming languages, Perl has mechanisms to use external libraries
CPAN
Library of modules (software)
The Perl Object Environment (POE) is a library of Perl modules written in the Perl programming language by Rocco Caputo et al. From CPAN: "POE originally
Perl_Object_Environment
A Perl module is a discrete component of software for the Perl programming language. Technically, it is a particular set of conventions for using Perl's
Perl_module
Typographic symbol (#)
section on Array functions in the Perl language structure article. # is used in the Modula-2 and Oberon programming languages designed by Niklaus Wirth and
Number_sign
Software paradigm independent of language
For example, a language agnostic Java development team might choose to use Ruby or Perl for some development work, where Ruby or Perl would be more appropriate
Language-agnostic
In the Perl programming language, autovivification is the automatic creation of new arrays and hashes as required every time an undefined value is dereferenced
Autovivification
Text-string-oriented programming language
as a text manipulation language in the humanities. In the 1980s and 1990s, its use faded as newer languages such as AWK and Perl made string manipulation
SNOBOL
Acronym for a common web hosting solution
MySQL for the relational database management system Perl, PHP, or Python for the programming language The components of the LAMP stack are present in the
LAMP_(software_bundle)
Language for controlling a computer
context-free grammars. Some languages, including Perl and Lisp, contain constructs that allow execution during the parsing phase. Languages that have constructs
Programming_language
is a list of software and programming tools for the Perl programming language, which includes Perl modules, debuggers, compilers, integrated development
List of Perl software and tools
List_of_Perl_software_and_tools
PL/Perl (Procedural Language/Perl) is a procedural language supported by the PostgreSQL RDBMS. PL/Perl, as an imperative programming language, allows more
PL/Perl
List of programming languages types and the languages that meet its description
Objective-C Perl Swift Visual Basic Xojo List-based languages are a type of data-structured language that are based on the list data structure. Lisp Arc
List of programming languages by type
List_of_programming_languages_by_type
Relational database programming language
Structured Query Language (SQL) (pronounced /ˌɛsˌkjuˈɛl/ S-Q-L; or alternatively as /ˈsiːkwəl/ "sequel") is a domain-specific language used to manage data
SQL
Section of a source code file that is treated as if it were a separate file
various high-level languages, notably the Perl programming language (syntax inspired by Unix shell) and languages influenced by Perl, such as PHP and Ruby
Here_document
General-purpose programming language
marks have equivalent functionality (unlike in Unix shells, Perl, and Perl-influenced languages). Both marks use the backslash (\) as an escape character
Python_(programming_language)
Recreational computer programming competition
challenges and tournaments may also be named with the programming language used (for example, Perl golf). The term "code golf" is derived from the similarity
Code_golf
Programming language family
other major programming languages, Lisp allows implementing control structures using the language. Several control structures are implemented as Lisp
Lisp_(programming_language)
German-Jewish novelist, religious commentator, and proponent of the Haskalah
Joseph Perl (also Josef Perl; November 10, 1773, in Ternopil – October 1, 1839, in Ternopil), was an Ashkenazi Jewish educator and writer, a scion of
Joseph_Perl
Programming language with hardware abstraction
retaining system-programming abilities. Scripting and rapid-application languages such as Perl, Python, Ruby, and PHP emphasized programmer productivity and text
High-level programming language
High-level_programming_language
Sequence of characters that forms a search pattern
features of Perl 5.x regexes, but also allow BNF-style definition of a recursive descent parser via sub-rules. The use of regexes in structured information
Regular_expression
Human-readable data serialization language
These data types are based on the Perl programming language, though all commonly used high-level programming languages share very similar concepts. The
YAML
General-purpose programming language
be used from higher-level languages like Java, Perl, and Python. File input and output (I/O) is not part of the C language itself but instead is handled
C_(programming_language)
Topics referred to by the same term
a narrowing of a tubular structure, in medicine Esophageal stricture, in medicine A feature of the Perl programming language Tenet, in religion Degree
Stricture
Perl software development platform
Padre (short for "Perl Application Development and Refactoring Environment") is a multi-language software development platform comprising an IDE and a
Padre_(software)
Lightweight markup language
reStructuredText (RST, ReST, or reST) is a plain-text markup language primarily used for technical documentation and other textual data. It serves a role
ReStructuredText
many notable programming languages. Programming language expressions can be broadly classified into four syntax structures: prefix notation Lisp (* (+
Comparison of programming languages (syntax)
Comparison_of_programming_languages_(syntax)
Programming language for statistics
scripting languages: Python (website) Perl (website) Ruby (source code) F# (website) Julia (source code). General-purpose programming languages: Java via
R_(programming_language)
Markup language for documents
Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web
HTML
Scheme) DCL Windows PowerShell (also under C#, ksh, and Perl) ed (programming language) sed AWK Perl (also under C) Eiffel Cobra (design by contract) Sather
Generational list of programming languages
Generational_list_of_programming_languages
Programming paradigm based on objects
Haxe, Java, JavaScript, Kotlin, Logo, MATLAB, Objective-C, Object Pascal, Perl, PHP, Python, R, Raku, Ruby, Scala, SIMSCRIPT, Simula, Smalltalk, Swift,
Object-oriented_programming
Toolkit, an Open Source Perl module for TL1 Telcordia GR-831-CORE - OTGR Section 12.1: Operations Application Messages - Language for Operations Application
Transaction_Language_1
Data structure or code used by a compiler
intermediate representation is designed to support dynamically typed languages—initially Perl and Python. TIMI is used by compilers on the IBM i platform. O-code
Intermediate_representation
1970s book series
replicable patterns of thought, language, and behavior modeled from "outstanding psychotherapists", namely Fritz Perls (Gestalt therapy) and Virginia Satir
The_Structure_of_Magic
Software to run programming languages
intermediate language) to Parrot bytecode and execute it. Parrot is free and open-source software with an Artistic License 2.0. Parrot was begun by the Perl community
Parrot_virtual_machine
Programming language specialized to a specific application domain
mainly for a specific domain. For example, Perl was originally developed as a text-processing and glue language, for the same domain as AWK and shell scripts
Domain-specific_language
standard, even widely used ones, such as Perl or Standard ML (despite the name). Notable standardized programming languages include ALGOL, C, C++, JavaScript
Comparison of programming languages
Comparison_of_programming_languages
How software progresses through its implementation
Fortran 2018. Operator Some languages have an operator form, such as the ternary conditional operator. When and unless Perl supplements a C-style if with
Control_flow
High-level programming language
programming language Outline of the Perl programming language Outline of the Python programming language Outline of the Rust programming language /ˈdʒɑːvəskrɪpt/
Outline of the JavaScript programming language
Outline_of_the_JavaScript_programming_language
Concept in Computer Science
calls the procedural languages APL, SETL and BDL VHLLs. In the 90s it was sometimes used to refer to scripting languages like Perl and Python. "Generational"
Programming language generations
Programming_language_generations
Programming languages with runtime extensibility
program is running, unlike in static languages, where the structure and types are fixed during compilation. Dynamic languages provide flexibility. This allows
Dynamic_programming_language
Collection of software libraries for XML
and SAX2. The implementation is available in the Java, C++ and Perl programming languages. The name "Xerces" is believed to commemorate the extinct Xerces
Apache_Xerces
Collection of Perl modules for bioinformatics
BioPerl is a collection of Perl modules that facilitate the development of Perl scripts for bioinformatics applications. It has played an integral role
BioPerl
Programming language using strict evaluation
needed] Nearly all programming languages in common use today are strict.[citation needed] Examples include C#, Java, Perl (all versions, i.e., through versions
Strict_programming_language
Programming language where character positioning in text is insignificant
barrier for beginners. Most free-form languages descend from ALGOL, including C, Pascal, and Perl. Lisp languages are free-form, but do not descend from
Free-form_language
Sussman – Structure and Interpretation of Computer Programs brian d foy – Mastering Perl chromatic – Perl Best Practices, Perl Hacks, Perl Testing: A
List_of_computer_books
Set of rules defining correctly structured programs
readers). The Python language has many similarities to Perl, C, and Java. However, there are some definite differences between the languages. It supports multiple
Python_syntax_and_semantics
Programming language
programming language Outline of the Java programming language Outline of the JavaScript programming language Outline of the Perl programming language Outline
Outline of the C programming language
Outline_of_the_C_programming_language
Scripting language created in 1994
Pages, and mod_perl. PHP has also attracted the development of many software frameworks that provide building blocks and a design structure to promote rapid
PHP
Automation tool for computer vulnerability scanners
of the formal language are similar to those of the programming language C and the scripting language Perl and those of other languages. Control flow such
Nessus Attack Scripting Language
Nessus_Attack_Scripting_Language
Online compendium of Bioinformatics & related software tools
Medical Language System (UMLS) is a compendium of many controlled vocabularies in the biomedical sciences (created 1986). It provides a mapping structure among
Unified Medical Language System
Unified_Medical_Language_System
Dynamic programming language
Julia is a dynamic general-purpose programming language. As a high-level language, distinctive aspects of Julia's design include a type system with parametric
Julia_(programming_language)
comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others
Comparison of programming languages (object-oriented programming)
Comparison_of_programming_languages_(object-oriented_programming)
Typesetting system based on TeX
licensed under the Q Public License. LaTeX2HTML is a converter written in Perl that converts LaTeX documents to HTML. It is licensed under GPL v2. The latest
LaTeX
Plain text markup language
"the true structured text format". Gruber created the Markdown language in 2004 with Swartz as his "sounding board". The goal of the language was to enable
Markdown
Self-replicating program
no limit on the number of languages in a multiquine. A 5-part multiquine (or pentaquine) has been produced with Python, Perl, C, NewLISP, and F# and there
Quine_(computing)
software. They are further subdivided by the language of implementation: JavaScript, Java, PHP, Python, Perl, Ruby, and so on. TiddlyWiki is a HTML-JavaScript-based
List_of_wiki_software
Text processing programming language
inspirations for the Perl language (1987). In the 1990s, Perl became very popular, competing with AWK in the niche of Unix text-processing languages. AWK reads
AWK
set. Perl – While Perl's keywords and function names are generally in English, it allows modification of its parser to modify the input language, such
Non-English-based programming languages
Non-English-based_programming_languages
Data type which allows a program to indirectly access a particular value in memory
machine pointers "under the hood". Perl supports hard references, which function similarly to those in other languages, and symbolic references, which are
Reference_(computer_science)
Short command-line instruction
executing the compiled program. Certain dynamic languages for scripting, such as AWK, sed, and Perl, have traditionally been adept at expressing one-liners
One-liner_program
Computer science data structure
PHP Library. Perl has implementations of binary, binomial, and Fibonacci heaps in the Heap distribution available on CPAN. The Go language contains a heap
Heap_(data_structure)
Open-source remote procedure call framework
variety of languages and frameworks, including ActionScript, C, C++, C#, Cocoa, Delphi, Erlang, Go, Haskell, Java, JavaScript, Objective-C, OCaml, Perl, PHP
Apache_Thrift
Deliberate creation of difficult-to-understand code
characteristics of some languages may make them easier to obfuscate than others. C, C++, and the Perl programming language are some examples of languages easy to obfuscate
Obfuscation_(software)
PARI/GP Pascal – ISO 7185 Pascal Script PCASTL PCF PDL PEARL PeopleCode Perl Pharo PHP Pico Picolisp Pict Pike PILOT Pipelines Pizza PL-11 PL/0 PL/B PL/C
List_of_programming_languages
Script written for an operating system shell
as can other scripting languages like Tcl. Perl and Tcl come with graphics toolkits as well. The POSIX standard shell language "sh" is based on the original
Shell_script
Overview of and topical guide to Python
programming language Outline of the JavaScript programming language Outline of the Perl programming language Outline of the Rust programming language Wikibooks
Outline of the Python programming language
Outline_of_the_Python_programming_language
Computer program or file valid in multiple programming languages or file formats
with new language ? Go on ! The following file runs as an MS-DOS batch file, then re-runs itself in Perl: Highlighted for DOS batch @rem = ' --PERL-- @echo
Polyglot_(computing)
Software application used to develop software
Eclipse, and Netbeans have plugins for C/C++, Ada, GNAT (for example AdaGIDE), Perl, Python, Ruby, and PHP, which are selected between automatically based on
Integrated development environment
Integrated_development_environment
Principle of interchangeability of data and code
as Lisp and Perl, they can be directly entered and evaluated as code. Configuration scripts, domain-specific languages and markup languages are cases where
Code_as_data
Provides a subset of the regular expression syntax implemented in the Perl scripting language, but fully supports Unicode Template file in resource directory
Comparison_of_TeX_editors
Computer code structure with a table of pointers to functions or similar
: "unknown argument\n"; Running this Perl program as perl greet -h will produce "hello", and running it as perl greet -g will produce "goodbye". A dispatch
Dispatch_table
Businessperson and computer programmer
programmer and entrepreneur, best known for his work with the Perl programming language. He is founder and CEO of applied research lab Prime Radiant,
Jesse_Vincent
Conversion process for computer data
Storable includes functions to serialize and deserialize Perl data structures to and from files or Perl scalars. In addition to serializing directly to files
Serialization
SQL database engine software
co-founder Michael Widenius' daughter My, and "SQL", the acronym for Structured Query Language. A relational database organizes data into one or more data tables
MySQL
Multidimensional data structure
Iliffe vector data structure in languages such as Java, PHP, Python (multidimensional lists), Ruby, C#.NET, Visual Basic.NET, Perl, JavaScript, Objective-C
Jagged_array
programming, co-invented Simula. Larry Wall, creator of the Perl programming language (see Perl and Raku). Martin Odersky, creator of Scala, and previously
History of programming languages
History_of_programming_languages
GUI toolkit or framework
exist for additional languages which might not be listed, including Ada (called TASH), Go (through tk9.0), Haskell (called HTk), Perl, Python (called Tkinter)
Tk_(software)
Overview of and topical guide to computer programming
programming language Outline of the JavaScript programming language Outline of the Perl programming language Outline of the Python programming language Outline
Outline of computer programming
Outline_of_computer_programming
Open-source workflow language
supported foreign programming languages are: Bash Elixir Erlang Java JavaScript MATLAB GNU Octave Perl Python R Racket Foreign language support for AWK and gnuplot
Cuneiform (programming language)
Cuneiform_(programming_language)
Programming paradigm
BASIC Clojure fdm Lua maildrop Oz Perl – data-driven programming as in AWK and sed is one paradigm supported by Perl procmail Raku - Raku has grammars
Data-driven_programming
Programming paradigm based on applying and composing functions
introduced into other mainstream languages such as Perl 5.0 in 1994, PHP 5.3, Visual Basic 9, C# 3.0, C++11, and Kotlin. In Perl, lambda, map, reduce, filter
Functional_programming
Digital data interchange format
available in a variety of languages such as C, C++, C#, D, Erlang, Go, Haskell, Java, JavaScript (NodeJS), Lua, OCaml, Perl, PHP, Python, Ruby, Rust,
MessagePack
Code that has to be included in many places with little or no alteration
mode, which are mandated by fashionable Perl programming style. This next example is a C/C++ programming language boilerplate, #include guard. #ifndef MYINTERFACE_H
Boilerplate_code
Set of software subsystems or components needed to create a complete platform
systems) Perl, PHP, or Python (scripting languages) WAMP Windows (operating system) Apache (web server) MySQL or MariaDB (database) PHP, Perl, or Python
Solution_stack
Computational operation
org. Retrieved 2022-02-19. Perl documentation "POSIX - Perl interface to IEEE Std 1003.1 - Perldoc Browser". perldoc.perl.org. Retrieved 2026-05-22. "PHP:
Modulo
Function definition that is not bound to an identifier
C++11 standard). Second, the languages that treat functions as first-class functions (Dylan, Haskell, JavaScript, Lisp, ML, Perl, Python, Ruby, Scheme) generally
Anonymous_function
Markup language with simple, unobtrusive syntax
A lightweight markup language (LML), also termed a simple or humane markup language, is a markup language with simple, unobtrusive syntax. It is designed
Lightweight_markup_language
most implementations are a mixture of awk and other programming languages, usually C or Perl. The concept was originally described in a 1991 Unix Review article
Strozzi_NoSQL
Sequence of characters, data type
expression use, and many other languages and applications implement Perl compatible regular expressions. Some languages such as Perl and Ruby support string
String_(computer_science)
Procedural programming language
PostgreSQL. "PL/pgSQL – SQL Procedural Language". PostgreSQL. Retrieved 2007-11-15. "Procedural Languages". 9 May 2024. "PL/Perl", Docs (current ed.), PostgreSQL
PL/pgSQL
is a CPAN module that originated as a port of Construct to the Perl programming language. (see its main POD document for its inspiration). Since the initial
Construct_(Python_library)
Organizing code into modules
UCSD Pascal), Perl, PHP, PL/I, PureBasic, Python, R, Ruby, Rust, JavaScript, Visual Basic (.NET) and WebDNA. Conspicuous examples of languages that lack support
Modular_programming
Extent to which a programming language discourages type errors
theory "What to know before debating type systems | Ovid [blogs.perl.org]". blogs.perl.org. Retrieved 2023-06-27. Milner, Robin (1978), "A Theory of Type
Type_safety
One-way software control-flow statement
feature, which allowed polymorphism, was frequently condemned and seldom used. Perl has a goto statement that takes a function name and transfers control by
Goto
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PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
PERL LANGUAGE-STRUCTURE
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