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fix(mdx-loader): Ignore contentTitle coming after Markdown thematicBreak #9999

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merged 1 commit into from
Mar 29, 2024
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fix(mdx-loader): Ignore contentTitle coming after Markdown thematicBreak #9999

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15 changes: 15 additions & 0 deletions packages/docusaurus-mdx-loader/src/remark/contentTitle/__tests__/index.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,21 @@ some **markdown** *content*

# contentTitle 1

some **markdown** *content*
`);

expect(result.data.contentTitle).toBeUndefined();
});

it('ignore contentTitle if after thematic break', async () => {
const result = await process(`

Hey

---

# contentTitle 1

some **markdown** *content*
`);

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25 changes: 16 additions & 9 deletions packages/docusaurus-mdx-loader/src/remark/contentTitle/index.ts
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Expand Up @@ -34,17 +34,24 @@ const plugin: Plugin = function plugin(
const {toString} = await import('mdast-util-to-string');
const {visit, EXIT} = await import('unist-util-visit');

visit(root, 'heading', (headingNode: Heading, index, parent) => {
if (headingNode.depth === 1) {
vfile.data.contentTitle = toString(headingNode);
if (removeContentTitle) {
// @ts-expect-error: TODO how to fix?
parent!.children.splice(index, 1);
visit(root, ['heading', 'thematicBreak'], (node, index, parent) => {
if (node.type === 'heading') {
const headingNode = node as Heading;
if (headingNode.depth === 1) {
vfile.data.contentTitle = toString(headingNode);
if (removeContentTitle) {
// @ts-expect-error: TODO how to fix?
parent!.children.splice(index, 1);
}
return EXIT; // We only handle the very first heading
}
// We only handle contentTitle if it's the very first heading found
if (headingNode.depth >= 1) {
return EXIT;
}
return EXIT; // We only handle the very first heading
}
// We only handle contentTitle if it's the very first heading found
if (headingNode.depth >= 1) {
// We only handle contentTitle when it's above the first thematic break
if (node.type === 'thematicBreak') {
return EXIT;
}
return undefined;
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