stylelint/lib/utils/getDimension.cjs

A mighty CSS linter that helps you avoid errors and enforce conventions.

// NOTICE: This file is generated by Rollup. To modify it,
// please instead edit the ESM counterpart and rebuild with Rollup (npm run build).
'use strict';

const valueParser = require('postcss-value-parser');
const blurInterpolation = require('./blurInterpolation.cjs');
const isStandardSyntaxValue = require('./isStandardSyntaxValue.cjs');

/**
 * Get Dimension from value node;
 * `unit` and `number` return null if neither is found
 *
 * @param {import('postcss-value-parser').Node} node
 *
 * @returns {{unit: null, number: null} | valueParser.Dimension}
 */
function getDimension(node) {
	if (!node || !node.value) {
		return {
			unit: null,
			number: null,
		};
	}

	// Ignore non-word nodes
	if (node.type !== 'word') {
		return {
			unit: null,
			number: null,
		};
	}

	// Ignore non standard syntax
	if (!isStandardSyntaxValue(node.value)) {
		return {
			unit: null,
			number: null,
		};
	}

	// Ignore HEX
	if (node.value.startsWith('#')) {
		return {
			unit: null,
			number: null,
		};
	}

	// Remove non standard stuff
	const value = blurInterpolation(node.value, '')
		// ignore hack unit
		.replace('\\0', '')
		.replace('\\9', '');

	const parsedUnit = valueParser.unit(value);

	if (!parsedUnit) {
		return {
			unit: null,
			number: null,
		};
	}

	return parsedUnit;
}

module.exports = getDimension;