babel/packages/babel-plugin-proposal-unicode-property-regex

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

Compile Unicode property escapes (\p{…} and \P{…}) in Unicode regular expressions to ES5 or ES6 that works in today’s environments.

Note: the Unicode property escape syntax is non-standard and may or may not reflect what eventually gets specified.

Here’s an online demo.

Installation

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

Usage

Via .babelrc (recommended)

.babelrc

{
  "plugins": ["@babel/plugin-proposal-unicode-property-regex"]
}

Via CLI

babel --plugins @babel/@babel/plugin-proposal-unicode-property-regex script.js

Via Node.js API

require("@babel/core").transform(code, {
  "plugins": ["@babel/plugin-proposal-unicode-property-regex"]
});

To transpile to ES6/ES2015:

require("@babel/core").transform(code, {
  "plugins": [
    ["@babel/plugin-proposal-unicode-property-regex", { "useUnicodeFlag": false }]
  ]
});

Options

• useUnicodeFlag (defaults to true)

When disabled with false, the transform converts Unicode regexes to non-Unicode regexes for wider support, removing the u flag. See https://github.com/mathiasbynens/regexpu-core#useunicodeflag-default-false for more information.

Author

Mathias Bynens