{
  "url": "https://unifast.dev/ja/docs/packages/shiki/create-shiki-transformer/",
  "locale": "ja",
  "title": "createShikiTransformer()",
  "description": "より低レベルな制御を行うためのスタンドアロンな Shiki トランスフォーマーを生成します。createShikiPlugin() と異なり、HAST ツリーに手動で適用できる生のトランスフォーマーオブジェクトを返します。",
  "section": "packages",
  "body": "```ts\n\n```\n\n## シグネチャ\n\n```ts\nasync function createShikiTransformer(\n  options?: ShikiTransformerOptions,\n): Promise<ShikiTransformer>\n```\n\n## パラメータ\n\n### options?\n\nShiki の設定 (テーマ、言語)\n\n| プロパティ | 型 | デフォルト | 説明 |\n|----------|------|---------|-------------|\n| `themes` | `BundledTheme[]` | `[\"github-dark\"]` | 読み込む Shiki テーマ |\n| `defaultTheme` | `BundledTheme` | themes の最初のテーマ | レンダリングで使うデフォルトのテーマ |\n| `langs` | `BundledLanguage[]` | `[]` | 読み込む言語。読み込まれた言語のみがハイライトされます。 |\n\n## 使い方\n\n```ts\n\nconst transformer = await createShikiTransformer({\n  themes: [\"github-dark\", \"github-light\"],\n  defaultTheme: \"github-dark\",\n  langs: [\"typescript\", \"rust\", \"json\"],\n});\n\nconst result = compile(md, { outputKind: \"hast\" });\nconst hast: HastRoot = JSON.parse(result.output as string);\nconst highlighted = transformer.transform(hast);\n\nconsole.log(highlighted);\n// HAST tree with Shiki-highlighted code blocks\n```\n\n## 使用例\n\n### 手動で HAST 変換を行う\n\n```ts\n\nconst transformer = await createShikiTransformer({\n  themes: [\"github-dark\"],\n  langs: [\"typescript\"],\n});\n\nconst result = compile(\"```ts\\nconst x = 1;\\n```\", { outputKind: \"hast\" });\nconst hast: HastRoot = JSON.parse(result.output as string);\nconst highlighted = transformer.transform(hast);\nconst html = hastToHtml(highlighted);\n\nconsole.log(html);\n// <pre> with Shiki-highlighted <span> elements\n```\n\n### React のレンダリングと組み合わせて使う\n\n```tsx\n\nconst transformer = await createShikiTransformer({\n  themes: [\"github-dark\"],\n  langs: [\"typescript\"],\n});\n\nconst result = compile(md, { outputKind: \"hast\" });\nconst hast: HastRoot = JSON.parse(result.output as string);\nconst highlighted = transformer.transform(hast);\nconst element = hastToReact(highlighted, { createElement, Fragment });\n```",
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