(/id/slug)+ style URI components parser

uri_components_parser.js

/**
 * Breaks given uri into 'id' and 'slug' components
 * Just provide it uri like /id1/slug1/id2/slug2...
 *
 * @param {string} uri to break into components
 * @return {object} returns an object consisting of 'id' and 'slug' arrays
 */
function getURIComponents(uri) {
	var pattern = /\/(?:([a-z][a-z0-9_-]+)|(?:(\d+)\/([a-z][a-z0-9_-]+)))/ig;
	var components = { separators: [], groups: [], count: 0 };
	var match;

	components.groups.push([]);

	while ((match = pattern.exec(uri)) !== null) {
		if (match[1]) {
			components.separators.push(match[1]);
			components.groups.push([]);
		} else {
			components.groups[components.groups.length - 1].push({
				id: match[2],
				slug: match[3]
			});
			++components.count;
		}
	}

	return components;
}

module.exports = getURIComponents;