regjsgen [![Build status][ci-img]][ci] [![Code coverage status][codecov-img]][codecov]

Generate regular expressions from [regjsparser][regjsparser]’s AST.

Installation

sh
npm i regjsgen

API

regjsgen.generate(ast)

This function accepts an abstract syntax tree representing a regular expression (see [regjsparser][regjsparser]), and returns the generated regular expression string.

js
const regjsparser = require('regjsparser');
const regjsgen = require('regjsgen');

// Generate an AST with `regjsparser`.
let ast = regjsparser.parse(regex);

// Modify AST
// …

// Generate `RegExp` string with `regjsgen`.
let regex = regjsgen.generate(ast);

Support

Tested in Node.js 10, 12, 14, and 16.<br> Compatible with regjsparser v0.7.0’s AST.

[ci]: https://github.com/bnjmnt4n/regjsgen/actions [ci-img]: https://github.com/bnjmnt4n/regjsgen/workflows/Node.js%20CI/badge.svg [codecov]: https://codecov.io/gh/bnjmnt4n/regjsgen [codecov-img]: https://codecov.io/gh/bnjmnt4n/regjsgen/branch/master/graph/badge.svg [regjsparser]: https://github.com/jviereck/regjsparser