README.md

regjsgen

This is a fork of bnjmnt4n/regjsgen with some additional patches. The end goal is to merge these patches upstream.

• be866435 feat: support modifiers proposal (bnjmnt4n/regjsgen#28)

Generate regular expressions from regjsparser’s AST.

Installation

npm i regjsgen

API

regjsgen.generate(ast)

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

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 on Node.js 16 and 18.
Compatible with regjsparser v0.10.0’s AST.