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xregexp

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xregexp

Extended regular expressions

  • 3.1.1
  • Source
  • npm
  • Socket score

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1.4M
decreased by-53.21%
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What is xregexp?

The xregexp npm package is an extended JavaScript regex library that provides additional syntax and features on top of the standard JavaScript RegExp object. It allows for more readable and maintainable regular expressions, adds new regex syntax, and provides utility functions for working with regular expressions.

What are xregexp's main functionalities?

Extended Syntax

Allows the use of Unicode property escapes for matching characters of a given Unicode category, such as letters (\p{L}).

/\p{L}+/u

Named Capture Groups

Supports named capture groups, which can be accessed by name after a match, making the regex more readable and maintainable.

XRegExp('(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})')

Add-ons and Extensibility

Provides a plugin-style architecture for adding new features like namespacing, which allows using regex flags in a scoped manner.

XRegExp.install('namespacing'); XRegExp('\p{Greek}+', 'A');

Build Regexes from Smaller Parts

Enables the construction of complex regexes from smaller, reusable components, improving modularity and readability.

XRegExp.build('(?x)^ {{integer}} (\. {{integer}})? $', {integer: /\d+/})

Utility Functions

Includes utility functions like matchRecursive for matching balanced pairs of delimiters, which is not possible with native JavaScript regexes.

XRegExp.matchRecursive('test (123 (test) 456) test', '\(', '\)', 'g')

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Package last updated on 14 May 2016

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