very-small-parser/esm/html/json-ml/fromHast.js

A very small Markdown, HTML, and CSS parser.

export const fromHast = (node) => {
    switch (node.type) {
        case 'text': {
            return node.value || '';
        }
        case 'element': {
            const children = node.children.map(fromHast);
            return [node.tagName, node.properties || null, ...children];
        }
        case 'root': {
            const children = node.children.map(fromHast);
            return ['', null].concat(children);
        }
        case 'comment': {
            return ['!--', null, node.value || ''];
        }
        case 'doctype': {
            return ['!DOCTYPE', null, node.value || ''];
        }
    }
};