misc: migrate remark-code-dataset to here

remark-code-dataset/README.md

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+# remark-code-dataset
+
+## What
+
+It's a remark plugin which adds all metadata passed to a code block as data attributes for exploitation in rehype or client-side.
+
+## Demo
+
+```jsx group=demo file=index.jsx
+export default function App() {
+  return <div>hello world</div>;
+}
+```
+
+↓
+
+```html
+<code class="language-jsx" data-group="demo" data-file="index.jsx">
+  <!-- some html -->
+</code>
+```
+
+## How
+
+1. Install the plugin with `npm i remark-code-dataset`
+2. Import the plugin with `import remarkCodeDataset from 'remark-code-dataset'
+3. Add to your remark plugin stack `[remarkCodeDataset]`

remark-code-dataset/index.js

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+import { visit } from "unist-util-visit";
+import json5 from 'json5';
+
+export default function remarkCodeDataset(options) {
+  return function transform(tree, file) {
+    visit(tree, 'code', function(node) {
+      if (!node.meta) return
+
+      try {
+        const attrs = json5.parse(node.meta);
+
+        const {
+          exclude = [],
+          include = Object.keys(attrs)
+        } = options ?? {}
+
+        node.data ??= {}
+
+        node.data.hProperties = Object.fromEntries(
+          Object.entries(attrs)
+            .filter(([k]) => !exclude.includes(k))
+            .filter(([k]) => include.includes(k))
+            .map(([k, v]) => [`data-${k}`, v])
+        )
+      } catch {
+        if (process.env.NODE_ENV !== 'production') {
+          const [filename] = file.history
+          console.error(`[remark-code-dataset] Invalid JSON5 structure in ${filename}: ${node.meta}; ignoring.`)
+        }
+      }
+    })
+  }
+}

remark-code-dataset/package.json

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+{
+  "name": "remark-code-dataset",
+  "type": "module",
+  "version": "2.1.0",
+  "description": "adds codeblock meta as html dataset",
+  "homepage": "https://github.com/y-nk/nonorepo/tree/main/remark-code-dataset",
+  "private": false,
+  "keywords": ["unified", "remark", "code"],
+  "author": "Julien Barbay <[email protected]>",
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "deploy": "npm publish --access public"
+  },
+  "dependencies": {
+    "json5": "^2.2.3",
+    "unist-util-visit": "^4.1.1"
+  }
+}

remark-code-dataset/yarn.lock

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+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@types/unist@^2.0.0":
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/@types/unist/-/unist-2.0.6.tgz#250a7b16c3b91f672a24552ec64678eeb1d3a08d"
+  integrity sha512-PBjIUxZHOuj0R15/xuwJYjFi+KZdNFrehocChv4g5hu6aFroHue8m0lBP0POdK2nKzbw0cgV1mws8+V/JAcEkQ==
+
+json5@^2.2.3:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.3.tgz#78cd6f1a19bdc12b73db5ad0c61efd66c1e29283"
+  integrity sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==
+
+unist-util-is@^5.0.0:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/unist-util-is/-/unist-util-is-5.1.1.tgz#e8aece0b102fa9bc097b0fef8f870c496d4a6236"
+  integrity sha512-F5CZ68eYzuSvJjGhCLPL3cYx45IxkqXSetCcRgUXtbcm50X2L9oOWQlfUfDdAf+6Pd27YDblBfdtmsThXmwpbQ==
+
+unist-util-visit-parents@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/unist-util-visit-parents/-/unist-util-visit-parents-5.1.1.tgz#868f353e6fce6bf8fa875b251b0f4fec3be709bb"
+  integrity sha512-gks4baapT/kNRaWxuGkl5BIhoanZo7sC/cUT/JToSRNL1dYoXRFl75d++NkjYk4TAu2uv2Px+l8guMajogeuiw==
+  dependencies:
+    "@types/unist" "^2.0.0"
+    unist-util-is "^5.0.0"
+
+unist-util-visit@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/unist-util-visit/-/unist-util-visit-4.1.1.tgz#1c4842d70bd3df6cc545276f5164f933390a9aad"
+  integrity sha512-n9KN3WV9k4h1DxYR1LoajgN93wpEi/7ZplVe02IoB4gH5ctI1AaF2670BLHQYbwj+pY83gFtyeySFiyMHJklrg==
+  dependencies:
+    "@types/unist" "^2.0.0"
+    unist-util-is "^5.0.0"
+    unist-util-visit-parents "^5.1.1"