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normalize class property #9723

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merged 5 commits into from
Jan 22, 2024
Merged

normalize class property #9723

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cf90921
normalize class property
blackmann Jan 18, 2024
ed5fa8d
Add changeset
blackmann Jan 18, 2024
7ad0eef
properly type return value
blackmann Jan 18, 2024
6a4c673
normalize styles, rename function
blackmann Jan 19, 2024
528b57a
properly describe change
blackmann Jan 20, 2024
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5 changes: 5 additions & 0 deletions .changeset/nervous-dodos-compete.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@astrojs/markdown-remark": patch
---

Fixes a case where transformers wouldn't work on the `class` property
10 changes: 7 additions & 3 deletions packages/markdown/remark/src/shiki.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import { bundledLanguages, createCssVariablesTheme, getHighlighter } from 'shikiji';
import { visit } from 'unist-util-visit';
import type { Properties } from 'hast';
import type { ShikiConfig } from './types.js';

export interface ShikiHighlighter {
Expand Down Expand Up @@ -61,9 +62,8 @@ export async function createShikiHighlighter({
node.tagName = 'code';
}

// Cast to string as shikiji will always pass them as strings instead of any other types
const classValue = (node.properties.class as string) ?? '';
const styleValue = (node.properties.style as string) ?? '';
const classValue = normalizePropAsString(node.properties.class) ?? '';
const styleValue = normalizePropAsString(node.properties.style) ?? '';

// Replace "shiki" class naming with "astro-code"
node.properties.class = classValue.replace(/shiki/g, 'astro-code');
Expand Down Expand Up @@ -129,6 +129,10 @@ export async function createShikiHighlighter({
};
}

function normalizePropAsString(value: Properties[string]): string | null {
return Array.isArray(value) ? value.join(' ') : (value as string | null);
}

/**
* shiki -> shikiji compat as we need to manually replace it
* @internal Exported for error overlay use only
Expand Down