regjsgen [![Build status][travis-ci-img]][travis-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 0.10, 0.12, 4, 6, 8, 10, 12 and 14.<br> Compatible with regjsparser v0.6.4’s AST.

[travis-ci]: https://travis-ci.org/bnjmnt4n/regjsgen [travis-ci-img]: https://travis-ci.org/bnjmnt4n/regjsgen.svg?branch=master [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