# 使用 Homebrew 安装 vnu 查看 vnu 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。 ## 安装 ```sh sudo av install brew:vnu ``` 其他安装命令: ### macOS - Homebrew (100%): ```sh brew install vnu ``` 证据: local Homebrew formula metadata ## 软件包事实 - **软件包键:** brew:vnu - **软件包管理器:** Homebrew - **版本:** 26.7.31 - **来源摘要:** Nu Markup Checker: command-line and server HTML validator - **主页:** - **最后更新:** 2026-08-01T16:07:17Z - **已生成:** 2026-08-03T19:37:03+00:00 ## 可执行文件 - vnu (别名) ## 安装行为 - Bottle: 不可用 ## 版本和新鲜度 - 页面生成时间: 2026-08-03 - 管理器版本: 26.7.31 ## 项目历史与用法 The Nu Html Checker, commonly invoked as `vnu`, is the modern HTML, CSS, and SVG checking engine associated with validator.nu and W3C's `validator.w3.org/nu` service. It is used both as a command-line checker for local files and as a deployable HTTP validation service. ### 项目历史 The project grew out of the HTML5-era validator.nu checker work and became the backend behind `html5.validator.nu`, `validator.w3.org/nu/`, and the HTML5 facet of the legacy W3C validator. A W3C validator mailing-list announcement in August 2014 described a new Nu Markup Checker release that packaged the same backend as a portable `vnu.jar` and as a WAR file for servlet containers. The current README describes the project as the Nu Html Checker and says release 20.6.30, dated 30 June 2020, was the final major version-numbered release; after that, users are directed to the production-ready release named `latest`. The same README documents a broad packaging model: standalone runtime images, `vnu.jar`, `vnu.war`, a container image, and integrations with build tools. ### 采用历史 vnu's adoption is tied to the web standards ecosystem rather than to a single application. It is the checker behind a public W3C validation endpoint, appears in frontend build workflows through Grunt, Gulp, Maven, npm, containers, and direct CLI use, and is deliberately described by its own about page as an evolving checker rather than a formal pass/fail certification service. ### 使用方式 Developers use `vnu` to catch unintended mistakes in HTML, CSS, and SVG, either by running the jar or native runtime against files, directories, or URLs, or by starting a local/server-side HTTP checker. The README's examples cover command-line batch checking, a standalone web server, servlet deployment through a WAR file, an HTTP client for a local or remote checker service, and containerized operation. ### 为什么软件包爱好者会关心 For package users, vnu is important because it turns the constantly evolving web-platform conformance checker into a local, scriptable artifact. That makes it usable in CI, static-site builds, editor tooling, and regression suites without sending every document to a public validator service. ### 时间线 - 2014-08-27: W3C announces a Nu Markup Checker release with `vnu.jar` batch checking and WAR deployment. - 2018: GitHub releases show standalone jar and WAR distributions used for command-line and service deployments. - 2020-06-30: Release 20.6.30 becomes the final major version-numbered release. - 2021: The project publishes a GitHub container package for the checker. - Present: Upstream directs production users to the continuously updated release named `latest`. ### Related projects - Related projects and surfaces include validator.nu, W3C Markup Validation Service, `validator.w3.org/nu`, the validator.nu HTML parser, and build-tool front ends such as Grunt, Gulp, and Maven HTML-validation plugins. ### 来源 - Nu Html Checker README: https://raw.githubusercontent.com/validator/validator/master/README.md - Nu Html Checker about page: https://validator.github.io/validator/site/nu-about.html - Nu Html Checker releases: https://github.com/validator/validator/releases - W3C www-validator announcement, 2014-08-27: https://lists.w3.org/Archives/Public/www-validator/2014Aug/0026.html ## 安全说明 没有找到 vnu 的匹配本地密钥处理 manifest。Nucleus 软件包元数据仍在此发布，以便未来覆盖拥有稳定的软件包 URL。 ## Combined YAML source View the package source record on GitHub. [combined/vnu.yml](https://github.com/mxcl/pkgdb/blob/main/combined/vnu.yml) ## 来源 - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - cross-ecosystem install command graph