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withProse remark plugin that escapes `prose` for MDX components
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| /* | |
| Usage: | |
| const withMDX = require("@next/mdx")({ | |
| options: { | |
| remarkPlugins: [ | |
| withProse, | |
| ], | |
| }, | |
| }); | |
| */ | |
| const proseComponents = ["Heading"]; | |
| const isJsNode = (node) => { | |
| return ( | |
| ["jsx", "import", "export"].includes(node.type) && | |
| !/^<[a-z]+(>|\s)/.test(node.value) && | |
| !new RegExp(`^<(${proseComponents.join("|")})(>|\\s)`).test(node.value) | |
| ); | |
| }; | |
| module.exports.withProse = () => { | |
| return (tree) => { | |
| let insideProse = false; | |
| tree.children = tree.children.flatMap((node, i) => { | |
| if (insideProse && isJsNode(node)) { | |
| insideProse = false; | |
| return [{ type: "jsx", value: "</div>" }, node]; | |
| } | |
| if (!insideProse && !isJsNode(node)) { | |
| insideProse = true; | |
| return [ | |
| { type: "jsx", value: '<div className="prose">' }, | |
| node, | |
| ...(i === tree.children.length - 1 | |
| ? [{ type: "jsx", value: "</div>" }] | |
| : []), | |
| ]; | |
| } | |
| if (i === tree.children.length - 1 && insideProse) { | |
| return [node, { type: "jsx", value: "</div>" }]; | |
| } | |
| return [node]; | |
| }); | |
| }; | |
| }; |
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