Modified version of Steven Levithan's parseUri 1.2.2

parseUri.js

// Modified version of Steven Levithan's parseUri 1.2.2
// See: http://blog.stevenlevithan.com/archives/parseuri
function parseUri( uri ) {
  var uriRegex = new RegExp(
      // Protocol
      "^(?:(?![^:@]+:[^:@/]*@)([^:/?#.]+):)?(?://)?" +
      // Authority
      "(" +
        // Credentials
        "(?:(" +
          // Username
          "([^:@]*)" +
          // Password
          "(?::([^:@]*))?" +
        ")?@)?" +
        // Host
        "([^:/?#]*)" +
        // Port
        "(?::(\\d*))?" +
      // Relative
      ")(" +
        // Path
        "(" +
          // Directory
          "(/(?:[^?#](?![^?#/]*\\.[^?#/.]+(?:[?#]|$)))*/?)?" +
          // File
          "([^?#/]*)" +
        ")" +
        // Query
        "(?:\\?([^#]*))?" +
        // Anchor
        "(?:#(.*))?" +
      ")"
    ),

    // Parses key/value pairs from a query string
    queryKeysRegex = /(?:^|&)([^&=]*)=?([^&]*)/g,

    // Keys for the uri hash, mapped from the matches array
    properties = [
      "source", "protocol",
      "authority", "credentials",
      "username", "password",
      "host", "port",
      "relative", "path",
      "directory", "file",
      "extension", "query",
      "anchor"
    ],
    i = 0,
    l = properties.length,
    matches = uriRegex.exec( uri ),
    uri = {
      queryData: {}
    };

  for ( ; i < l; i++ ) {
    uri[ properties[ i ] ] = matches[ i ] || "";
  }

  uri.query.replace( queryKeysRegex, function( matched, key, value, offset, str ) {
    if ( key && key.length ) {
      uri.queryData[ key ] = value;
    }
  });

  return uri;
};

unfortunately this doesnt correctly parse:
http://localhost:1111/?q=1

"q=1" shows up as "extension" but should be the query / queryData