@cldmv/prettier-plugin-jsonv

A Prettier plugin for formatting JSONV files.

Features

• Formats .jsonv files using the @cldmv/jsonv parser
• Supports all ES2015-2025 features (JSON5, binary/octal literals, BigInt, numeric separators, etc.)
• Configurable year-based feature detection
• Proper handling of comments and whitespace
• Integrates with Prettier's configuration system

Installation

npm install --save-dev @cldmv/prettier-plugin-jsonv prettier @cldmv/jsonv

Usage

Add the plugin to your Prettier configuration:

Using .prettierrc.mjs or prettier.config.mjs:

import jsonv from 'prettier-plugin-jsonv';

export default {
  plugins: [jsonv],
  overrides: [
    {
      files: "*.jsonv",
      options: {
        jsonvYear: 2025,
        strictBigInt: false
      }
    }
  ]
};

Using .prettierrc or prettier.config.js:

module.exports = {
  plugins: ['prettier-plugin-jsonv'],
  overrides: [
    {
      files: "*.jsonv",
      options: {
        jsonvYear: 2025,
        strictBigInt: false
      }
    }
  ]
};

Configuration Options

Option	Type	Default	Description
jsonvYear	number	2025	The year to use for JSONV features (2015-2025)
strictBigInt	boolean	false	Whether to enforce strict BigInt parsing

License

Apache-2.0 © Shinrai / CLDMV