domhandler-to-hyperscript.js

const createNode = (node, options) => {
    const hnode = options.h(
        node.name,
        Object.assign({}, node.attribs),
        ...node.children.map(child => domHandlerToHyperScript(child, options))
    );
    if(options.onCreate) options.onCreate(node, hnode);
    return hnode;
};

const createTextNode = (node, options) => {
    const hnode = node.data;
    if(options.onCreate) options.onCreate(node, hnode);
    return hnode;
};

const domHandlerToHyperScript = (node, options = {}) =>
    Array.isArray(node)  ? node.map(child => domHandlerToHyperScript(child, options))
  : node.type === 'tag'  ? createNode(node, options)
  : node.type === 'text' ? createTextNode(node, options)
  : /* otherwise        */ null;

module.exports = domHandlerToHyperScript;