@alauda/doom/lib/remark-lint/no-heading-sup-sub.js

Doctor Doom making docs.

import { lintRule } from 'unified-lint-rule';
import { visit } from 'unist-util-visit';
import { visitParents } from 'unist-util-visit-parents';
const SUP_SUB_REGEX = /<\/?(?:sup|sub)>/;
export const noHeadingSupSub = lintRule('doom-lint:no-heading-sup-sub', (root, vfile) => {
    visit(root, 'heading', (heading) => {
        visitParents(heading, 'html', (html, parents) => {
            if (SUP_SUB_REGEX.test(html.value)) {
                vfile.message(`Unexpected \`${html.value}\` tag in heading, remove it`, {
                    ancestors: [...parents, html],
                    place: html.position,
                });
            }
        });
    });
});