redirect_to.js: Handy url redirection that's as flexilbe as the href attribute of A tags.

redirect_to.coffee

###
	
  Handy url redirection that's as flexible as the href attribute of A tags.
	
  There might have been an easier way to do this, if so, let me know how stupid
  I am :)
	
  Example:
  // Browser is on http://my.domain.com:3000/hello/world.html
  window.redirect_to "world2.html"
  // => http://my.domain.com:3000/hello/world2.html
  window.redirect_to "/blog"
  // => http://my.domain.com:3000/blog
  window.redirect_to "#item/42"
  // => http://my.domain.com:3000/hello/world.html#item/42
  window.redirect_to "http://www.google.com/"
  // => http://www.google.com/
  window.redirect_to "/go/to?url=http://www.google.com/"
  // => http://my.domain.com:3000/go/to?url=http://www.google.com/
	
###

window.redirect_to = (url, location) ->
    redirect_to = ""
    location = window.location if typeof(location) == "undefined"
    if url.charAt(0) == '#'
      redirect_to += location.href.split('#')[0]
      window.location.href = redirect_to + url

    else if url.match(/^[a-zA-Z]+\:\/\/.+/) == null
      redirect_to += location.protocol + "//" + location.hostname
      redirect_to += ":" + location.port if location.port != ""

      if url.charAt(0) != "/"
        redirect_to += location.pathname.
          substr(0, location.pathname.lastIndexOf("/") + 1)

      window.location.href = redirect_to + url
    else
      window.location.href = url

redirect_to.js

/*
	
	Handy url redirection that's as flexible as the href attribute of A tags.
	
	There might have been an easier way to do this, if so, let me know how stupid
	I am :)
	
	Example:
	// Browser is on http://my.domain.com:3000/hello/world.html
	window.redirect_to("world2.html");
	// => http://my.domain.com:3000/hello/world2.html
	window.redirect_to("/blog");
	// => http://my.domain.com:3000/blog
	window.redirect_to("#item/42");
	// => http://my.domain.com:3000/hello/world.html#item/42
	window.redirect_to("http://www.google.com/");
	// => http://www.google.com/
	window.redirect_to("/go/to?url=http://www.google.com/");
	// => http://my.domain.com:3000/go/to?url=http://www.google.com/
	
*/

window.redirect_to = function(url, location){
	var redirect_to = "";
	if (typeof(location) == "undefined") location = window.location;
	if (url.charAt(0) === '#') {
		redirect_to += location.href.split('#')[0];
		window.location.href = redirect_to + url;
	} else if (url.match(/^[a-zA-Z]+\:\/\/.+/) === null) {
		redirect_to += location.protocol + "//" + location.hostname;
		if (location.port != "") redirect_to += ":" + location.port;
		if (url.charAt(0) !== "/") redirect_to += location.pathname.substr(0, location.pathname.lastIndexOf("/")+1);
		window.location.href = redirect_to + url;
	} else {
		window.location.href = url;
	};
};