18 lines
533 B
TypeScript
18 lines
533 B
TypeScript
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import { visit } from 'unist-util-visit';
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/**
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* Moves `data.meta` to `properties.metastring` for the `code` element node
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* as `rehype-raw` strips `data` from all nodes, which may contain useful information.
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* e.g. ```js {1:3} => metastring: "{1:3}"
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*/
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export default function rehypeMetaString() {
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return function (tree: any) {
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visit(tree, (node) => {
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if (node.type === 'element' && node.tagName === 'code' && node.data?.meta) {
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node.properties ??= {};
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node.properties.metastring = node.data.meta;
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}
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});
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};
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}
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