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fix: code component was missing support for meta string #11605

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merged 6 commits into from
Aug 14, 2024
Merged

fix: code component was missing support for meta string #11605

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e204036
fix: code component was missing support for meta string
jcayzac Aug 3, 2024
988f54d
Create odd-buttons-pay.md
Princesseuh Aug 5, 2024
e3624a0
<Code>: add reference link for meta prop
jcayzac Aug 10, 2024
f1ab60c
Apply suggestions from code review
Princesseuh Aug 12, 2024
16304d2
Update .changeset/odd-buttons-pay.md
sarah11918 Aug 13, 2024
2d20fb7
Update .changeset/odd-buttons-pay.md
ematipico Aug 14, 2024
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15 changes: 11 additions & 4 deletions .changeset/odd-buttons-pay.md
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Expand Up @@ -2,14 +2,21 @@
"astro": minor
---

Adds support for passing a metastring when using the Code component.
Adds a new property `meta` to Astro's built-in `<Code />` component.

The following code is equivalent to doing `` ```js astro=cool `` in Markdown.
This allows you to provide a value for [Shiki's `meta` attribute](https://shiki.style/guide/transformers#meta) to pass options to transformers.

The following example passes an option to highlight lines 1 and 3 to Shiki's `tranformerMetaHighlight`:

```astro
// src/pages/index.astro
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This probably would not be a page, since it doesn't have a layout and just calls a component, no?

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Sure! We could fix this by changing it to be a component URL, or by adding some HTML comment for "missing stuff". I'll update to a component name, but the other would be fine if you want to suggest it!

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This is invalid Astro markup. Comments above the --- mark are not allowed.

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D'oh, great catch! I'm so spoiled living in the docs repo... (we always just use title= there)

---
import { Code } from "astro:components";
import { transformerMetaHighlight } from '@shikijs/transformers';
---

<Code code="console.log('Hello, Astro!')" lang={"js"} meta="astro=cool" />
<Code
code={code}
lang="js"
transformers={[transformerMetaHighlight()]}
meta="{1,3}" />
```
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