# @yozora/tokenizer-fenced-block

Latest version **2.4.0** (published 2026-08-01) · MIT license · 0 weekly downloads

## Install

```sh
npm install @yozora/tokenizer-fenced-block
pnpm add @yozora/tokenizer-fenced-block
yarn add @yozora/tokenizer-fenced-block
bun add @yozora/tokenizer-fenced-block
```

## Health

**Score 55/100 (C)** — status: active.

Positive: no vulnerabilities; recently updated; high maintenance score.

Warnings: low downloads; no types; no esm support.

## Facts

| | |
|---|---|
| Version | 2.4.0 |
| Published | 2026-08-01 |
| First published | 2021-04-10 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 157 |
| Author | guanghechen |
| Maintainers | lemonclown |

## Links

- npm: https://www.npmjs.com/package/@yozora/tokenizer-fenced-block
- Repository: https://github.com/yozorajs/yozora
- Homepage: https://github.com/yozorajs/yozora/tree/v2.4.1/tokenizers/fenced-block#readme
- npm.io page: https://npm.io/package/@yozora/tokenizer-fenced-block

## Recent versions

- 2.4.0 (latest) — 2026-08-01
- 2.3.17 — 2026-07-10
- 2.3.16 — 2026-03-01
- 2.3.15 — 2026-03-01
- 2.3.14 — 2026-02-28
- 2.3.13 — 2025-11-30
- 2.3.12 — 2025-02-26
- 2.3.11 — 2025-01-13
- 2.3.10 — 2025-01-09
- 2.3.9 — 2024-12-05
- 2.3.8 — 2024-12-03
- 2.3.7 — 2024-11-06
- 2.3.6 — 2024-10-23
- 2.3.5 — 2024-10-06
- 2.3.4 — 2024-09-29
- … 54 more at https://npm.io/package/@yozora/tokenizer-fenced-block/versions

## README

<!-- :begin use tokenizer/banner -->

<header>
  <h1 align="center">
    <a href="https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/fenced-block#readme">@yozora/tokenizer-fenced-block</a>
  </h1>
  <div align="center">
    <a href="https://www.npmjs.com/package/@yozora/tokenizer-fenced-block">
      <img
        alt="npm version"
        src="https://img.shields.io/npm/v/@yozora/tokenizer-fenced-block.svg"
      />
    </a>
    <a href="https://www.npmjs.com/package/@yozora/tokenizer-fenced-block">
      <img
        alt="npm downloads"
        src="https://img.shields.io/npm/dm/@yozora/tokenizer-fenced-block.svg"
      />
    </a>
    <a href="https://www.npmjs.com/package/@yozora/tokenizer-fenced-block">
      <img
        alt="npm license"
        src="https://img.shields.io/npm/l/@yozora/tokenizer-fenced-block.svg"
      />
    </a>
    <a href="#install">
      <img
        alt="Module formats: cjs, esm"
        src="https://img.shields.io/badge/module_formats-cjs%2C%20esm-green.svg"
      />
    </a>
    <a href="https://github.com/nodejs/node">
      <img
        alt="Node.js Version"
        src="https://img.shields.io/node/v/@yozora/tokenizer-fenced-block"
      />
    </a>
    <a href="https://github.com/vitest-dev/vitest">
      <img
        alt="Tested with Vitest"
        src="https://img.shields.io/badge/tested_with-vitest-6E9F18.svg"
      />
    </a>
    <a href="https://github.com/prettier/prettier">
      <img
        alt="Code style: Prettier"
        src="https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square"
      />
    </a>
  </div>
</header>
<br />


<!-- :end -->

Abstract base tokenizer for fenced block syntaxes. It provides shared matching logic for
[@yozora/tokenizer-admonition][], [@yozora/tokenizer-fenced-code][], and
[@yozora/tokenizer-math][]. Register a concrete subclass instead of `FencedBlockTokenizer`
directly.

## Install

```bash
npm install --save @yozora/tokenizer-fenced-block
```

## Constructor options

| Name              | Type                                              | Required | Default                            |
| :---------------- | :------------------------------------------------ | :------- | :--------------------------------- |
| `name`            | `string`                                          | Yes      | —                                  |
| `nodeType`        | `NodeType`                                        | Yes      | —                                  |
| `markers`         | `ICodePoint[]`                                    | Yes      | —                                  |
| `markersRequired` | `number`                                          | Yes      | —                                  |
| `priority`        | `number`                                          | No       | `TokenizerPriority.FENCED_BLOCK`   |
| `checkInfoString` | `(info, marker, markerCount) => boolean`          | No       | Accept every info string           |

Subclasses provide the parse hook that converts matched fenced-block tokens into their AST node
type.

## Related

- [@yozora/ast][]
- [@yozora/core-tokenizer][]
- [@yozora/tokenizer-admonition][]
- [@yozora/tokenizer-fenced-code][]
- [@yozora/tokenizer-math][]
- [Documentation][docpage]

<!-- :begin use tokenizer/definitions -->

[live-examples]: https://yozora.guanghechen.com/docs/package/tokenizer-fenced-block#live-examples
[docpage]: https://yozora.guanghechen.com/docs/package/tokenizer-fenced-block
[homepage]: https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/fenced-block#readme
[gfm-spec]: https://github.github.com/gfm
[mdast-homepage]: https://github.com/syntax-tree/mdast

[@yozora/ast]:                                https://github.com/yozorajs/yozora/tree/v2.4.0/packages/ast#readme
[@yozora/ast-util]:                           https://github.com/yozorajs/yozora/tree/v2.4.0/packages/ast-util#readme
[@yozora/character]:                          https://github.com/yozorajs/yozora/tree/v2.4.0/packages/character#readme
[@yozora/core-parser]:                        https://github.com/yozorajs/yozora/tree/v2.4.0/packages/core-parser#readme
[@yozora/core-tokenizer]:                     https://github.com/yozorajs/yozora/tree/v2.4.0/packages/core-tokenizer#readme
[@yozora/invariant]:                          https://github.com/yozorajs/yozora/tree/v2.4.0/packages/invariant#readme
[@yozora/markup-weaver]:                      https://github.com/yozorajs/yozora/tree/v2.4.0/packages/markup-weaver#readme
[@yozora/parser]:                             https://github.com/yozorajs/yozora/tree/v2.4.0/packages/parser#readme
[@yozora/parser-gfm]:                         https://github.com/yozorajs/yozora/tree/v2.4.0/packages/parser-gfm#readme
[@yozora/parser-gfm-ex]:                      https://github.com/yozorajs/yozora/tree/v2.4.0/packages/parser-gfm-ex#readme
[@yozora/tokenizer-admonition]:               https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/admonition#readme
[@yozora/tokenizer-autolink]:                 https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/autolink#readme
[@yozora/tokenizer-autolink-extension]:       https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/autolink-extension#readme
[@yozora/tokenizer-blockquote]:               https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/blockquote#readme
[@yozora/tokenizer-break]:                    https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/break#readme
[@yozora/tokenizer-definition]:               https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/definition#readme
[@yozora/tokenizer-delete]:                   https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/delete#readme
[@yozora/tokenizer-ecma-import]:              https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/ecma-import#readme
[@yozora/tokenizer-emphasis]:                 https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/emphasis#readme
[@yozora/tokenizer-fenced-block]:             https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/fenced-block#readme
[@yozora/tokenizer-fenced-code]:              https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/fenced-code#readme
[@yozora/tokenizer-footnote]:                 https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/footnote#readme
[@yozora/tokenizer-footnote-definition]:      https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/footnote-definition#readme
[@yozora/tokenizer-footnote-reference]:       https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/footnote-reference#readme
[@yozora/tokenizer-heading]:                  https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/heading#readme
[@yozora/tokenizer-html-block]:               https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/html-block#readme
[@yozora/tokenizer-html-inline]:              https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/html-inline#readme
[@yozora/tokenizer-image]:                    https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/image#readme
[@yozora/tokenizer-image-reference]:          https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/image-reference#readme
[@yozora/tokenizer-indented-code]:            https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/indented-code#readme
[@yozora/tokenizer-inline-code]:              https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/inline-code#readme
[@yozora/tokenizer-inline-math]:              https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/inline-math#readme
[@yozora/tokenizer-link]:                     https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/link#readme
[@yozora/tokenizer-link-reference]:           https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/link-reference#readme
[@yozora/tokenizer-list]:                     https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/list#readme
[@yozora/tokenizer-math]:                     https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/math#readme
[@yozora/tokenizer-paragraph]:                https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/paragraph#readme
[@yozora/tokenizer-setext-heading]:           https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/setext-heading#readme
[@yozora/tokenizer-table]:                    https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/table#readme
[@yozora/tokenizer-text]:                     https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/text#readme
[@yozora/tokenizer-thematic-break]:           https://github.com/yozorajs/yozora/tree/v2.4.0/tokenizers/thematic-break#readme

[@yozora/react-admonition]:                   https://github.com/yozorajs/yozora-react/tree/main/packages/admonition#readme
[@yozora/react-blockquote]:                   https://github.com/yozorajs/yozora-react/tree/main/packages/blockquote#readme
[@yozora/react-break]:                        https://github.com/yozorajs/yozora-react/tree/main/packages/break#readme
[@yozora/react-delete]:                       https://github.com/yozorajs/yozora-react/tree/main/packages/delete#readme
[@yozora/react-emphasis]:                     https://github.com/yozorajs/yozora-react/tree/main/packages/emphasis#readme
[@yozora/react-code]:                         https://github.com/yozorajs/yozora-react/tree/main/packages/code#readme
[@yozora/react-code-live]:                    https://github.com/yozorajs/yozora-react/tree/main/packages/code-live#readme
[@yozora/react-footnote-definitions]:         https://github.com/yozorajs/yozora-react/tree/main/packages/footnote-definitions#readme
[@yozora/react-footnote-reference]:           https://github.com/yozorajs/yozora-react/tree/main/packages/footnote-reference#readme
[@yozora/react-heading]:                      https://github.com/yozorajs/yozora-react/tree/main/packages/heading#readme
[@yozora/react-image]:                        https://github.com/yozorajs/yozora-react/tree/main/packages/image#readme
[@yozora/react-inline-code]:                  https://github.com/yozorajs/yozora-react/tree/main/packages/inline-code#readme
[@yozora/react-inline-math]:                  https://github.com/yozorajs/yozora-react/tree/main/packages/inline-math#readme
[@yozora/react-link]:                         https://github.com/yozorajs/yozora-react/tree/main/packages/link#readme
[@yozora/react-list]:                         https://github.com/yozorajs/yozora-react/tree/main/packages/list#readme
[@yozora/react-list-item]:                    https://github.com/yozorajs/yozora-react/tree/main/packages/list-item#readme
[@yozora/react-markdown]:                     https://github.com/yozorajs/yozora-react/tree/main/packages/markdown#readme
[@yozora/react-math]:                         https://github.com/yozorajs/yozora-react/tree/main/packages/math#readme
[@yozora/react-paragraph]:                    https://github.com/yozorajs/yozora-react/tree/main/packages/paragraph#readme
[@yozora/react-strong]:                       https://github.com/yozorajs/yozora-react/tree/main/packages/strong#readme
[@yozora/react-table]:                        https://github.com/yozorajs/yozora-react/tree/main/packages/table#readme
[@yozora/react-text]:                         https://github.com/yozorajs/yozora-react/tree/main/packages/text#readme
[@yozora/react-thematic-break]:               https://github.com/yozorajs/yozora-react/tree/main/packages/thematic-break#readme

[doc-live-examples/gfm]:                      https://yozora.guanghechen.com/docs/example/gfm
[doc-@yozora/ast]:                            https://yozora.guanghechen.com/docs/package/ast
[doc-@yozora/ast-util]:                       https://yozora.guanghechen.com/docs/package/ast-util
[doc-@yozora/core-parser]:                    https://yozora.guanghechen.com/docs/package/core-parser
[doc-@yozora/core-tokenizer]:                 https://yozora.guanghechen.com/docs/package/core-tokenizer
[doc-@yozora/parser]:                         https://yozora.guanghechen.com/docs/package/parser
[doc-@yozora/parser-gfm]:                     https://yozora.guanghechen.com/docs/package/parser-gfm
[doc-@yozora/parser-gfm-ex]:                  https://yozora.guanghechen.com/docs/package/parser-gfm-ex
[doc-@yozora/tokenizer-admonition]:           https://yozora.guanghechen.com/docs/package/tokenizer-admonition
[doc-@yozora/tokenizer-autolink]:             https://yozora.guanghechen.com/docs/package/tokenizer-autolink
[doc-@yozora/tokenizer-autolink-extension]:   https://yozora.guanghechen.com/docs/package/tokenizer-autolink-extension
[doc-@yozora/tokenizer-blockquote]:           https://yozora.guanghechen.com/docs/package/tokenizer-blockquote
[doc-@yozora/tokenizer-break]:                https://yozora.guanghechen.com/docs/package/tokenizer-break
[doc-@yozora/tokenizer-delete]:               https://yozora.guanghechen.com/docs/package/tokenizer-delete
[doc-@yozora/tokenizer-emphasis]:             https://yozora.guanghechen.com/docs/package/tokenizer-emphasis
[doc-@yozora/tokenizer-fenced-code]:          https://yozora.guanghechen.com/docs/package/tokenizer-fenced-code
[doc-@yozora/tokenizer-heading]:              https://yozora.guanghechen.com/docs/package/tokenizer-heading
[doc-@yozora/tokenizer-html-block]:           https://yozora.guanghechen.com/docs/package/tokenizer-html-block
[doc-@yozora/tokenizer-html-inline]:          https://yozora.guanghechen.com/docs/package/tokenizer-html-inline
[doc-@yozora/tokenizer-image]:                https://yozora.guanghechen.com/docs/package/tokenizer-image
[doc-@yozora/tokenizer-image-reference]:      https://yozora.guanghechen.com/docs/package/tokenizer-image-reference
[doc-@yozora/tokenizer-indented-code]:        https://yozora.guanghechen.com/docs/package/tokenizer-indented-code
[doc-@yozora/tokenizer-inline-code]:          https://yozora.guanghechen.com/docs/package/tokenizer-inline-code
[doc-@yozora/tokenizer-inline-math]:          https://yozora.guanghechen.com/docs/package/tokenizer-inline-math
[doc-@yozora/tokenizer-link]:                 https://yozora.guanghechen.com/docs/package/tokenizer-link
[doc-@yozora/tokenizer-definition]:           https://yozora.guanghechen.com/docs/package/tokenizer-definition
[doc-@yozora/tokenizer-link-reference]:       https://yozora.guanghechen.com/docs/package/tokenizer-link-reference
[doc-@yozora/tokenizer-list]:                 https://yozora.guanghechen.com/docs/package/tokenizer-list
[doc-@yozora/tokenizer-math]:                 https://yozora.guanghechen.com/docs/package/tokenizer-math
[doc-@yozora/tokenizer-paragraph]:            https://yozora.guanghechen.com/docs/package/tokenizer-paragraph
[doc-@yozora/tokenizer-setext-heading]:       https://yozora.guanghechen.com/docs/package/tokenizer-setext-heading
[doc-@yozora/tokenizer-table]:                https://yozora.guanghechen.com/docs/package/tokenizer-table
[doc-@yozora/tokenizer-text]:                 https://yozora.guanghechen.com/docs/package/tokenizer-text
[doc-@yozora/tokenizer-thematic-break]:       https://yozora.guanghechen.com/docs/package/tokenizer-thematic-break
[doc-@yozora/parser-gfm]:                     https://yozora.guanghechen.com/docs/package/parser-gfm

[gfm-atx-heading]:                            https://github.github.com/gfm/#atx-heading
[gfm-autolink]:                               https://github.github.com/gfm/#autolinks
[gfm-autolink-extension]:                     https://github.github.com/gfm/#autolinks-extension-
[gfm-blockquote]:                             https://github.github.com/gfm/#block-quotes
[gfm-bullet-list]:                            https://github.github.com/gfm/#bullet-list
[gfm-delete]:                                 https://github.github.com/gfm/#strikethrough-extension-
[gfm-emphasis]:                               https://github.github.com/gfm/#can-open-emphasis
[gfm-fenced-code]:                            https://github.github.com/gfm/#fenced-code-block
[gfm-hard-line-break]:                        https://github.github.com/gfm/#hard-line-break
[gfm-html-block]:                             https://github.github.com/gfm/#html-block
[gfm-html-inline]:                            https://github.github.com/gfm/#raw-html
[gfm-image]:                                  https://github.github.com/gfm/#images
[gfm-image-reference]:                        https://github.github.com/gfm/#example-590
[gfm-indented-code]:                          https://github.github.com/gfm/#indented-code-block
[gfm-inline-code]:                            https://github.github.com/gfm/#code-span
[gfm-link]:                                   https://github.github.com/gfm/#inline-link
[gfm-definition]:                             https://github.github.com/gfm/#link-reference-definition
[gfm-link-reference]:                         https://github.github.com/gfm/#reference-link
[gfm-list]:                                   https://github.github.com/gfm/#lists
[gfm-list-item]:                              https://github.github.com/gfm/#list-items
[gfm-list-task-item]:                         https://github.github.com/gfm/#task-list-items-extension-
[gfm-paragraph]:                              https://github.github.com/gfm/#paragraph
[gfm-setext-heading]:                         https://github.github.com/gfm/#setext-heading
[gfm-soft-line-break]:                        https://github.github.com/gfm/#soft-line-breaks
[gfm-strong]:                                 https://github.github.com/gfm/#can-open-strong-emphasis
[gfm-tab]:                                    https://github.github.com/gfm/#tabs
[gfm-table]:                                  https://github.github.com/gfm/#table
[gfm-text]:                                   https://github.github.com/gfm/#soft-line-breaks
[gfm-thematic-break]:                         https://github.github.com/gfm/#thematic-break


<!-- :end -->

---
_Source: https://npm.io/package/@yozora/tokenizer-fenced-block · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._