A CSS property value parser that uses css-tree for parsing, and models nodes on top of PostCSS’s Node/Container/Root classes so the API feels familiar to PostCSS users.

This package powers part of Prettier. Please consider becoming a sponsor if you find this package useful or are a Prettier user. https://github.com/sponsors/shellscape

Using npm:

npm install postcss-values-parser --save-dev

• Node.js >= 20.19.0
• PostCSS >= 8.4.14 (peer dependency)

Note: This package is ESM‑only. Use import in Node.js. In CommonJS on Node >= 20.19.0, require() can load ES modules:

// CommonJS (Node >= 20.19.0)
const { parse } = require('postcss-values-parser');

• Uses css-tree for fast, standards‑compliant parsing
• Builds PostCSS‑style nodes for a familiar API
• Doesn't strip characters; e.g., parentheses are preserved in the AST
• Full AST traversal
• Optional walker helpers (registerWalkers(Container)) to walk by node type
• Convenience methods to stringify nodes
• Provides convenience properties for number units, colors, etc.

Please see the Documentation for general use and further information on using the package.

CONTRIBUTING

LICENSE (Mozilla Public License)