> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/latex/ja/sononotopikku/43-table-of-tex-category-codes.md).

# TeXカテゴリコード表

| **カテゴリコード** | **説明**                            | **標準のLaTeX/TeX**              |
| ----------- | --------------------------------- | ----------------------------- |
| 0           | エスケープ文字—TEXにコマンドを探し始めるよう指示する      | `\`                           |
| 1           | グループを開始する                         | {                             |
| 2           | グループを終了する                         | }                             |
| 3           | 数式シフト—数式モードに入る/抜ける切り替え            | $                             |
| 4           | 整列タブ                              | &                             |
| 5           | 行末                                | ASCIIコード13（`\r`)              |
| 6           | マクロ引数                             | #                             |
| 7           | 上付き文字—数式組版用： `$y=x^2$` $$y=x^2$$  | ˆ                             |
| 8           | 下付き文字—数式組版用： `$y=x_2$` $$y=x\_2$$ | \_                            |
| 9           | 無視される文字                           | ASCII 0 `<null>`              |
| 10          | スペーサー                             | ASCIIコード32（スペース）と9（タブ文字）      |
| 11          | 文字                                | A...Z、a...z、（そして数千のUnicode文字） |
| 12          | その他                               | 0...9に加えて、,.;?" など多数          |
| 13          | アクティブ文字                           | ˜のような1文字マクロを作成するための特殊カテゴリコード  |
| 14          | コメント文字—行末まで続くすべてを無視する             | %                             |
| 15          | .tex入力ファイルに現れることが許可されていない無効な文字    | ASCIIコード127（`DEL`)            |


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