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Perl Compatible Regular Expressions: Art & Measurement

Perl Compatible Regular Expressions (PCRE) is a library written in C, which implements a regular expression engine, inspired by the capabilities of the Perl programming language. Philip Hazel started writing PCRE in summer 1997. PCRE's syntax is much more powerful and flexible than either of the POSIX regular expression flavors (BRE, ERE) and than that…

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Perl Compatible Regular Expressions topic overview

The analysis highlights Art and Measurement as prominent areas in the source structure around Perl Compatible Regular Expressions.

Related topics
22
Source areas
2
Connected nodes
24
Extracted relationships
10
Related term clusters
7
Bridge connections
24

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Features · 13 topics
Overview · 9 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

License
BSD
Operating system
Cross-platform
Original author
Philip Hazel
PCRE1
PCRE18.45 / June 15, 2021; 5 years ago (2021-06-15)PCRE210.47 / October 21, 2025; 10 months ago (2025-10-21) · 8.45 / June 15, 2021; 5 years ago (2021-06-15)
PCRE2
10.47 / October 21, 2025; 10 months ago (2025-10-21)
Repository
github.com/PCRE2Project/pcre2

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Perl Compatible Regular Expressions
4Library (computing) · Regular expression · Perl
18Open-source software · Apache HTTP Server · Nginx

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Features

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Perl Compatible Regular Expressions connects Entity context

The extracted context around Perl Compatible Regular Expressions shows recurring relationship patterns in the source. For example, Perl Compatible Regular Expressions → 8.45 / June 15, 2021; 5 years ago (2021-06-15), PCRE18.45 / June 15, 2021; 5 years ago (2021-06-15)PCRE210.47 / October 21, 2025; 10 months ago (2025-10-21) Another extracted example is Perl Compatible Regular Expressions → BSD. Use these groups to spot repeated connection types before inspecting the individual relationships.

Perl Compatible Regular Expressions

Top relations

PCRE1 · 2
Perl Compatible Regular Expressions → 8.45 / June 15, 2021; 5 years ago (2021-06-15), PCRE18.45 / June 15, 2021; 5 years ago (2021-06-15)PCRE210.47 / October 21, 2025; 10 months ago (2025-10-21)
License · 1
Perl Compatible Regular Expressions → BSD
Operating system · 1
Perl Compatible Regular Expressions → Cross-platform
Original author · 1
Perl Compatible Regular Expressions → Philip Hazel
PCRE2 · 1
Perl Compatible Regular Expressions → 10.47 / October 21, 2025; 10 months ago (2025-10-21)
Repository · 1
Perl Compatible Regular Expressions → github.com/PCRE2Project/pcre2
Type · 1
Perl Compatible Regular Expressions → Pattern matching library
Website · 1
Perl Compatible Regular Expressions → pcre2project.github.io/pcre2/
Written in · 1
Perl Compatible Regular Expressions → C

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

pcre perl pcre2 pattern match library newline option unicode 10 character default regular matching options also support example posix matches

Perl Compatible Regular Expressions relationships Subject–Predicate–Object triples

TTTA extracted 10 structured relationships around Perl Compatible Regular Expressions. Examples in this analysis include Perl Compatible Regular Expressions → License → BSD and Perl Compatible Regular Expressions → Operating system → Cross-platform. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Perl Compatible Regular ExpressionsLicenseBSD1.00infobox
Perl Compatible Regular ExpressionsOperating systemCross-platform1.00infobox
Perl Compatible Regular ExpressionsOriginal authorPhilip Hazel1.00infobox
Perl Compatible Regular ExpressionsPCRE1PCRE18.45 / June 15, 2021; 5 years ago (2021-06-15)PCRE210.47 / October 21, 2025; 10 months ago (2025-10-21)1.00infobox
Perl Compatible Regular ExpressionsPCRE18.45 / June 15, 2021; 5 years ago (2021-06-15)1.00infobox
Perl Compatible Regular ExpressionsPCRE210.47 / October 21, 2025; 10 months ago (2025-10-21)1.00infobox
Perl Compatible Regular ExpressionsRepositorygithub.com/PCRE2Project/pcre21.00infobox
Perl Compatible Regular ExpressionsTypePattern matching library1.00infobox
Perl Compatible Regular ExpressionsWebsitepcre2project.github.io/pcre2/1.00infobox
Perl Compatible Regular ExpressionsWritten inC1.00infobox

Related concept clusters Related term clusters

The concept neighborhoods around Perl Compatible Regular Expressions bring nearby vocabulary together. In this analysis, examples include Pcre, Posix and Also. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Perl Compatible Regular Expressions
    • Pcre
    • Posix
    • Also
    • Pcre2
    • Patterns
    • Match
    • Regular
    • Default
    • Expression
    • External
    • Release
    • Library
  • perl compatible regular expressions
    • Regular
    • Pcre
    • Expression
    • Library
    • Matching
    • Posix
    • Also
    • Pcre2
    • Patterns
    • Match
    • Default
    • Built
  • library
    • Built
    • Support
    • Regular
    • Pcre2
    • Unicode
    • Expression
    • Release
    • Pcre
    • External
    • Matching
    • Patterns
    • Pcre1
  • perl programming language
    • Pcre
    • Also
    • Pcre2
    • Patterns
    • Match
    • Regular
    • Default
    • Expression
    • Release
    • Library
    • Expressions
    • Support
  • longest match
    • Would
    • Example
    • Options
    • Pattern
    • Start
    • Pcre2
    • Newline
    • Perl
    • Release
    • Matching
    • Patterns
    • Properties
  • posix regular expression
    • Regular
    • Expressions
    • Character
    • Development
    • Library
    • Matching
    • Built
    • Pcre
    • Posix
    • Release
    • Using
    • Perl
  • unicode
    • Used

Connections between topic areas Semantic bridges

For Perl Compatible Regular Expressions, one of the stronger structural bridges in this analysis connects Perl Compatible Regular Expressions with Features. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Perl Compatible Regular Expressions — Features · splits 11 ⟂ 14
Perl Compatible Regular Expressions — Overview · splits 15 ⟂ 10

Map overview Semantic statistics

Perl Compatible Regular Expressions

Nodes25
Edges24
Triples10
Avg. degree1.92
Density0.08
Components1

Source & methodology

TTTA analyzes the structure around Perl Compatible Regular Expressions to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Art & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Perl Compatible Regular Expressions · EN edition · Analysis: TopicsToTalkAbout

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