Regular Expressions parser in JavaScript

CSSTree is a tool set to work with CSS, including fast detailed parser (string->AST), walker (AST traversal), generator (AST->string) and lexer (validation and matching) based on knowledge of spec and browser implementations

AST traversal scheduling, single-pass visitor merging, incremental caching, worker-pool parallelism.

A library to parse/stringify SCSS

TxtNode traverse library

TimeBomb rule engine and AST traversal

AST utility module for statically analyzing JSX

Typed AST toolkit for JavaScript and TypeScript ESTree trees: walker, builders, guards, and syntactic utilities

Yet another ESTree AST traversal/modification library, making use of `this` binding and generators

AST utils for webassemblyjs

Powerful and compliant CSS selector parser.

A CSS property value parser for use with PostCSS

Oxc Parser Node API

traverse power-assert context

A modern CSS parser and stringifier with TypeScript support

Generate regular expressions from regjsparser’s AST.

Helper functions for Vue template AST

CSS AST traversal filters

Flow types for the Javascript AST

Lexical ordering of property names per Esprima AST type