@babel/plugin-transform-unicode-property-regex

What is @babel/plugin-transform-unicode-property-regex?

The @babel/plugin-transform-unicode-property-regex package is a plugin for Babel, a JavaScript compiler, that transforms Unicode property escapes in regular expressions into a set of Unicode code points, allowing developers to write more readable and maintainable regular expressions for Unicode characters. This plugin is especially useful when targeting environments that do not support the latest ECMAScript standards.

What are @babel/plugin-transform-unicode-property-regex's main functionalities?

Transform Unicode Property Escapes

This code sample demonstrates how a Unicode property escape for matching any character in the Greek script is transformed into a regular expression that matches the equivalent set of Unicode code points.

/\p{Script=Greek}/u

Other packages similar to @babel/plugin-transform-unicode-property-regex

regexpu-core

The regexpu-core package is a regular expression polyfill that transforms Unicode property escapes and other modern RegExp features to be compatible with older JavaScript environments. It provides similar functionality to @babel/plugin-transform-unicode-property-regex but can be used independently of Babel.

babel-plugin-transform-regexp-constructors

This Babel plugin transforms new RegExp constructors to string literals to ensure compatibility with older environments. While it does not specifically target Unicode property escapes, it addresses the broader issue of RegExp compatibility which is a related concern.

README

@babel/plugin-transform-unicode-property-regex

Compile Unicode property escapes in Unicode regular expressions to ES5.

See our website @babel/plugin-transform-unicode-property-regex for more information.

Install

Using npm:

npm install --save-dev @babel/plugin-transform-unicode-property-regex

or using yarn:

yarn add @babel/plugin-transform-unicode-property-regex --dev

Changelog

v7.25.7 (2024-10-02)

:bug: Bug Fix

• babel-helper-validator-identifier
  • #16825 fix: update identifier to unicode 16 (@JLHwung)
• babel-traverse
  • #16814 fix: issue with node path keys updated on unrelated paths (@DylanPiercey)
• babel-plugin-transform-classes
  • #16797 Use an inclusion rather than exclusion list for super() check (@nicolo-ribaudo)
• babel-generator
  • #16788 Fix printing of TS infer in compact mode (@nicolo-ribaudo)
  • #16785 Print TS type annotations for destructuring in assignment pattern (@nicolo-ribaudo)
  • #16778 Respect [no LineTerminator here] after nodes (@nicolo-ribaudo)

:nail_care: Polish

• babel-types
  • #16852 Add deprecated JSDOC for fields (@liuxingbaoyu)

:house: Internal

• babel-core
  • #16820 Allow sync loading of ESM when --experimental-require-module (@nicolo-ribaudo)
• babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env
  • #16858 Add browserslist config to external dependency (@JLHwung)
• babel-plugin-proposal-destructuring-private, babel-plugin-syntax-decimal, babel-plugin-syntax-import-reflection, babel-standalone
  • #16809 Archive syntax-import-reflection and syntax-decimal (@nicolo-ribaudo)
• babel-generator
  • #16779 Simplify logic for [no LineTerminator here] before nodes (@nicolo-ribaudo)

:running_woman: Performance

• babel-plugin-transform-typescript
  • #16875 perf: Avoid extra cloning of namespaces (@liuxingbaoyu)
• babel-types
  • #16842 perf: Improve @babel/types builders (@liuxingbaoyu)
  • #16828 Only access BABEL_TYPES_8_BREAKING at startup (@nicolo-ribaudo)