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34 lines
1.3 KiB
TypeScript
34 lines
1.3 KiB
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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// @ts-expect-error: TODO see https://github.com/microsoft/TypeScript/issues/49721
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import type {Transformer, Processor} from 'unified';
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import type {Code} from 'mdast';
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// Solution inspired by https://github.com/pomber/docusaurus-mdx-2/blob/main/packages/mdx-loader/src/remark/codeCompat/index.ts
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// TODO after MDX 2 we probably don't need this - remove soon?
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// Only fenced code blocks are swapped by pre/code MDX components
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// Using <pre><code> in JSX shouldn't use our MDX components anymore
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// To make theme-classic/src/theme/MDXComponents/Pre work
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// we need to fill two properties that mdx v2 doesn't provide anymore
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export default function codeCompatPlugin(this: Processor): Transformer {
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return async (root) => {
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const {visit} = await import('unist-util-visit');
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visit(root, 'code', (node: Code) => {
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node.data = node.data || {};
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node.data.hProperties = node.data.hProperties || {};
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node.data.hProperties.metastring = node.meta;
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// Retrocompatible support for live codeblock metastring
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// Not really the appropriate place to handle that :s
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node.data.hProperties.live = node.meta?.split(' ').includes('live');
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});
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};
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}
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