css-tree/lib/syntax/config/parser-selector.js

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

import { Selector } from '../scope/index.js';
import pseudo from '../pseudo/index.js';
import * as node from '../node/index-parse-selector.js';

export default {
    parseContext: {
        default: 'SelectorList',
        selectorList: 'SelectorList',
        selector: 'Selector'
    },
    scope: { Selector },
    atrule: {},
    pseudo,
    node
};