URI Parsing with Javascript - regex version

jsperf-results.md

See original gist for discussion and links.

Performance Comparison: http://jsperf.com/url-parsing/5

Testing in Chrome 22.0.1229.94 32-bit on Windows Server 2008 R2 / 7 64-bit

Test Ops/sec

Regex

var matches = urlParseRE.exec(url); var hostname1 = matches[11]; var search1 = matches[16];

1,170,537 ±0.43% fastest

Native

parser.href = url; var hostname2 = parser.hostname; var search2 = parser.search;

88,389 ±0.38% 92% slower

Lib With Regex

var parsed3 = UrlParser.get(url); var hostname3 = parsed3.hostname; var search3 = parsed3.search;

1,005,115 ±0.38% 14% slower

uri.js

var UrlParser = {
	regx: /^(((([^:\/#\?]+:)?(?:(\/\/)((?:(([^:@\/#\?]+)(?:\:([^:@\/#\?]+))?)@)?(([^:\/#\?\]\[]+|\[[^\/\]@#?]+\])(?:\:([0-9]+))?))?)?)?((\/?(?:[^\/\?#]+\/+)*)([^\?#]*)))?(\?[^#]+)?)(#.*)?/
	,
	get : function(url) {
			var matches = this.regx.exec(url);
			// map results
			return {
					href: matches[0],
					withoutHash: matches[1],
					url: matches[2],
					origin: matches[3],
					protocol: matches[4],
					protocolseparator: matches[5],
					credhost: matches[6],
					cred: matches[7],
					user: matches[8],
					pass: matches[9],
					host: matches[10],
					hostname: matches[11],
					port: matches[12],
					pathname: matches[13],
					segment1: matches[14],
					segment2: matches[15],
					search: matches[16],
					hash: matches[17]
			};
	}
};