prettier-plugin-align-comments

Utility for aligning trailing comments in Prettier-formatted code.

Installation

npm install --save-dev prettier-plugin-align-comments

Usage

Create a wrapper file for your language plugin:

// prettier-solidity-aligned.mjs
import { wrapPlugin } from "prettier-plugin-align-comments";
import solidityPlugin from "prettier-plugin-solidity";

export default wrapPlugin(solidityPlugin, "solidity-ast");

Then reference it in your config:

// prettier.config.mjs
export default {
  plugins: ["./prettier-solidity-aligned.mjs"],
  alignColumn: -1,
  alignMinConsecutive: 2,
};

Or with JSON config:

{
  "plugins": ["./prettier-solidity-aligned.mjs"],
  "alignColumn": -1,
  "alignMinConsecutive": 2
}

Example

Before:

uint256 public x; // Short
address public owner; // Another line
bool public isActive; // Active flag

After:

uint256 public x;        // Short
address public owner;    // Another line
bool public isActive;    // Active flag

Options

alignColumn (default: -1)

• -1: Auto-align to longest line
• > 0: Fixed column number

alignMinConsecutive (default: 2)

• Minimum consecutive lines to trigger alignment

Programmatic API

import { alignComments } from "prettier-plugin-align-comments";

const pattern = /^(\s*)(.*?)([;,])\s+(\/\/.*)$/;
const aligned = alignComments(text, pattern, -1, 2);

License

MIT