astro/examples/with-markdown-plugins/add-classes.mjs
2023-09-16 09:12:23 +01:00

16 lines
492 B
JavaScript

import { selectAll } from 'hast-util-select';
export default (additions) => {
const adders = Object.entries(additions).map(adder);
return (node) => adders.forEach((a) => a(node));
};
const adder = ([selector, className]) => {
const writer = write(className);
return (node) => selectAll(selector, node).forEach(writer);
};
const write = (className) => ({ properties }) => {
if (!properties.className) properties.className = className;
else properties.className += ` ${className}`;
};