postcss-safe-parser is a fault-tolerant CSS parser designed specifically for use with PostCSS. It excels at parsing virtually any CSS input, including highly malformed or 'hacky' legacy code often encountered in historical examples or real-world unvalidated user input, and is particularly valuable for applications like live demo tools. The current stable version, 7.0.1, indicates active development and maintenance, typically aligning with the release cadence of the broader PostCSS ecosystem. Its primary differentiator is its robust error recovery mechanism, enabling it to process and recover from CSS syntax errors that would cause standard parsers to fail, thus providing a resilient parsing solution for environments where input validity cannot be guaranteed. It requires Node.js version 18 or higher and `postcss` version `^8.4.31` as a peer dependency.
npm install postcss-safe-parserVerified import paths — ran on the pinned version, not inferred.
Demonstrates how to use `postcss-safe-parser` with `postcss` to parse and process malformed CSS, showcasing its fault-tolerant capabilities.
Upgrade your Node.js environment to version 18.0 or higher. You can use a tool like `nvm` to manage Node.js versions.
Ensure that your project explicitly installs `postcss@^8.4.31` (or a compatible version). Run `npm install postcss@^8.4.31` or `yarn add postcss@^8.4.31`.
Always inspect the `result.messages` array after processing with `postcss-safe-parser` to understand what corrections or warnings were generated. Implement logic to handle or log these messages as appropriate.
When processing a raw string without a known file path, explicitly set `from: undefined` in the PostCSS options: `postcss().process(css, { parser: safeParser, from: undefined })`.Install `postcss` in your project: `npm install postcss` or `yarn add postcss`.
Ensure you are using the correct default import: `import safeParser from 'postcss-safe-parser'` for ESM, or `const safeParser = require('postcss-safe-parser')` for CommonJS.